• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Disclosed is a clogging-proof and jamming-proof constant-temperature valve core, comprising an upper housing (1), a lower housing (2), a plunger component (3), a guide rod (4), a spline rod (5), a paraffin wax temperature sensor (6), and a working spring (7). The plunger component comprises a sealing gland (31), a connecting sleeve (32), a plunger upper cover (33), a plunger base (34), and a protective spring (35). The sealing gland (31) and the connecting sleeve (32) can be movably sleeved on the paraffin wax temperature sensor (6). The sealing gland (31) is arranged above the connecting sleeve (32), and, the sealing gland (31) and the connecting sleeve (32) are nested in each other. The top part of the paraffin wax temperature sensor (6) protrudes the sealing gland (31). The top part of the connecting sleeve (32) is abutted against the sealing gland (31). The bottom part of the connecting sleeve (32) is abutted against the paraffin wax temperature sensor (6). The plunger upper cover (33) and the plunger base (34) are movably nested in each other. The top part of the plunger cover (33) is abutted against the sealing gland (31). The bottom part of the plunger base (34) is abutted against the connecting sleeve (32). The protective spring (35) is provided between the plunger upper cover (33) and the plunger base (34), thus allowing the plunger upper cover (33), the protective spring (35), and the plunger base (34) to be locked tightly between the sealing gland (31) and the connecting sleeve (32). The clogging-proof and jamming-proof constant-temperature valve core solves the problem of a valve core being clogged by sediment.
    公开号:ES2804078A2
    申请号:ES202090041
    申请日:2018-04-28
    公开日:2021-02-03
    发明作者:Zhaoxiang Liu
    申请人:Weilaiwolai Guangdong Sanitary Tech Co Ltd；
    IPC主号:
    专利说明:

    [0002] Clog-proof and clog-proof constant temperature valve core
    [0004] BACKGROUND OF THE INVENTION
    [0006] 1. Field of the invention
    [0008] The present invention relates to a constant temperature valve core, and more particularly to a clog-proof and clog-proof constant temperature valve core.
    [0010] 2. Description of the prior art
    [0012] A conventional temperature controlled valve core, as shown in Figure 1, comprises an upper housing 10, a lower housing 20, a knurled rod 30, a guide assembly 40, a plunger 50, a temperature sensor of paraffin wax 60 and a working spring 70. The upper housing 10 is connected to the lower housing 20. The plunger 50 is slidably disposed in the lower housing 20, and the plunger 50 is wrapped in the wax temperature sensor of paraffin 60. When the paraffin wax temperature sensor is expanded to move the plunger 50 upward, the guide assembly 40 will slide into the upper housing, and the knurled rod 30 will rotate to push the guide assembly down, and the guide assembly 40 will push the paraffin wax temperature sensor 60 and the plunger 50 downward.
    [0014] Cold water and hot water enter the top and bottom of plunger 50 from a cold water inlet 201 and a hot water inlet 202 of the lower housing 20, respectively, and flow through a cold water inlet opening. 203 between plunger 50 and upper housing 10 and a hot water inlet opening 204 between plunger 50 and lower housing 20. Plunger 50 moves up or down to adjust the size of the water inlet opening cold 203 and hot water inlet opening 204, for adjusting the cold water inlet and hot water inlet. Cold water flows from inside the plunger 50 to the temperature sensing area of the paraffin wax temperature sensor 60 and mixes with hot water. Paraffin Wax Temperature Sensor 60 detects the water temperature and uses the characteristics of its thermal expansion and contraction to cause plunger 50 to move to achieve self-regulation of temperature. When knurled rod 30 is loosened, working spring 70 between plunger 50 and lower housing 20 actuates plunger 50 to return. The conventional temperature controlled valve core has the following defects:
    [0016] 1. The plunger 50 of the conventional temperature controlled valve core on the market is designed as an integral structure. When used in areas where the water contains sediment, the plunger 50 often seizes due to sediment, resulting in the temperature controlled valve core unusable. It is necessary to provide a filter screen 80 in the lower housing 20 to prevent sediment from clogging the valve core. However, the filter screen cannot block fine sediment.
    [0018] 2. Conventional constant temperature valve core protection spring using paraffin wax temperature sensor 60 to adjust water temperature is designed inside guide rod (belonging to screw drive assembly 30) . During use, it cannot help the constant temperature valve core to remove impurities.
    [0020] 3. In the conventional constant temperature valve, after mixing the hot and cold water, the water flows directly to the temperature sensing area of the paraffin wax temperature sensor 60 without sufficient mixing, which makes the water temperature be unstable.
    [0022] To overcome the aforementioned deficiencies, the present inventor has developed a jam-proof and clog-proof constant temperature valve core.
    [0024] SUMMARY OF THE INVENTION
    [0026] The main object of the present invention is to provide a clog-proof and clog-proof constant temperature valve core to solve the problem that the valve core is easily clogged with sediment.
    [0028] In order to achieve the above object, the present invention adopts the following technical solutions:
    [0030] A clog-proof and clog-proof constant temperature valve core comprises an upper housing, a lower housing, a plunger assembly, a guide rod, a knurled rod, a paraffin wax temperature sensor, and a spring spring. job. The lower housing has a cold water inlet, a hot water inlet, and a mixed water outlet. The paraffin wax temperature sensor is arranged axially in the upper housing and in the lower housing. The guide rod is arranged above the paraffin wax temperature sensor in the upper housing. The knurled rod is disposed at an upper end of the upper housing. The knurled rod is threadedly connected to the guide rod which can be moved up and down.
    [0032] The plunger assembly comprises a sealing sleeve, a connecting sleeve, a plunger top cover, a plunger base, and a protection spring. The sealing cap and connecting sleeve are movably wrapped in the paraffin wax temperature sensor. The sealing sleeve is arranged on the connection sleeve. The sealing gland and the connecting sleeve fit together. An upper part of the paraffin wax temperature sensor extends out of the sealing cap. An upper part of the connecting sleeve bears against the sealing sleeve. The bottom of the connection sleeve rests against the paraffin wax temperature sensor. An intermediate portion of the upper cover of the plunger has water inlet holes. An intermediate portion of the plunger base has water outlet ports. The upper plunger cover and plunger base movably fit together. An upper part of the upper cover of the plunger bears against the sealing sleeve. A lower part of the plunger base bears against the connecting sleeve. The protection spring is provided between the upper plunger cover and the plunger base, thus allowing the upper plunger cover, the protection spring and the plunger base to lock tightly between the sealing gland and the connecting sleeve. A lower end of the working spring rests elastically against the bottom of the lower housing. An upper end of the working spring rests elastically against the bottom of the plunger base.
    [0034] A cold water inlet opening corresponding to the cold water inlet is formed between the upper cover of the plunger and the upper housing. A hot water inlet opening corresponding to the hot water inlet is formed between the base of the plunger and lower housing.
    [0036] Preferably, the protection spring is wrapped in the connection sleeve.
    [0038] Preferably, a water inlet ring is formed on the upper cover of the plunger, the water inlet ring is formed with the water inlet holes distributed at equal intervals, a water outlet ring is formed at the base of the plunger and the water outlet ring is formed with the water outlet holes distributed at equal intervals.
    [0040] Preferably, a sealing ring is provided between the upper cover of the plunger and the base of the plunger.
    [0042] Preferably, a lower part of the guide rod is connected with a locking nut, an upper end of the sealing cap is inserted into the locking nut, and the locking nut has a limit flange thereon to restrict movement towards below the sealing gland.
    [0044] Preferably, the clog-proof and clog-proof constant temperature valve core further comprises an impeller installed in the mixed water outlet of the lower housing, and the impeller is formed with a plurality of impeller holes distributed at equal intervals.
    [0046] After adopting the above technical solutions, when in use, the knurled rod is rotated to push the guide rod down. When the guide rod is moved down to press against the hot paraffin temperature sensor, it will push the hot paraffin temperature sensor down. When the guide rod is moved down to press against the sealing gland, it will push the sealing gland down. The sealing gland will push the top cover of the plunger down to increase the cold water inlet opening. In this process, due to the action of the protection spring, the upper cover of the plunger must be pushed with a greater thrust from the sealing sleeve to move downwards. Therefore, the cold water inlet opening between the upper cover of the plunger and the upper housing is made larger so that large impurities pass through it, without getting stuck between the end face of the upper cover of the plunger. and the end face of the upper housing. Also, the thrust exerted on the paraffin wax temperature sensor is dampened by the protection spring to prevent the paraffin wax temperature sensor is damaged due to excessive force.
    [0048] When the knurled rod is rotated in reverse, the guide rod and lock nut are pushed up to actuate the connecting sleeve and lock nut to move up. At this point, since the upper plunger cover, the plunger base are restricted and locked between the sealing gland and the connecting sleeve, the upper plunger cover and the plunger base move up, and the spring Work compressed by the base of the plunger is returned. The hot water inlet opening is increased and the cold water inlet opening is reduced. In this process, due to the action of the protection spring, the base of the plunger needs a great thrust to move upwards, so the hot water inlet opening is enlarged. The force exerted on the upper cover of the plunger is dampened by the protection spring, so that the cold water inlet opening remains large enough.
    [0050] The present invention has the following advantages:
    [0052] 1. The present invention locks the plunger base, the upper plunger cover and the protection spring into one through the sealing gland to ensure that the upper plunger cover can only move downward after receiving a certain downward thrust. , and the plunger base can only move up after receiving a certain upward thrust, in order to form the largest cold water inlet opening and the hot water inlet opening, thus allowing the passage of larger impurities , preventing the plunger assembly from jamming and clogging, bypassing a filter screen, and further preventing the constant temperature valve core from clogging and clogging.
    [0054] 2. Compared with the conventional constant temperature valve core having the paraffin wax temperature sensor, the present invention has been optimized and improved in mixing hot and cold water. After passing through the water inlet holes and the water outlet holes, cold water flows into the hot water area at the lower end and is pre-mixed with hot water. After passing through the lower housing impeller holes, the water is thoroughly mixed and then flows into the temperature sensitive area of the paraffin wax temperature sensor to improve the temperature stability of the water discharged from the valve core. .
    [0055] 3. In the present invention, the locking nut is configured to restrain the sealing gland to ensure that the upper plunger cover and plunger base move within the safe range of motion of the paraffin wax temperature sensor to prevent overextrusion and damage to the paraffin wax temperature sensor.
    [0057] 4. The present invention can be applied to shape memory alloy temperature control valve cores and temperature control valve cores having paraffin wax temperature sensors adjusting the internal dimensions, and has good versatility.
    [0059] BRIEF DESCRIPTION OF THE DRAWINGS
    [0061] Figure 1 is a cross-sectional view of a conventional constant temperature valve core;
    [0063] Figure 2 is an exploded view of the present invention;
    [0065] Figure 3 is a cross-sectional view of the present invention;
    [0067] Figure 4 is a cross-sectional view of the plunger assembly, guide rod, and paraffin wax temperature sensor of the present invention;
    [0069] Figure 5 is a perspective view of the plunger assembly, guide rod, and paraffin wax temperature sensor of the present invention;
    [0071] Figure 6 is a schematic view of the upper cover of the plunger of the present invention;
    [0073] Figure 7 is a schematic view of the base of the plunger of the present invention;
    [0075] Figure 8 is a schematic view of the lower housing of the present invention; Y
    [0077] Figure 9 is a cross-sectional view of the lower housing of the present invention.
    [0078] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
    [0080] Figures 2 to 9, the present invention discloses a clog-proof and clog-proof constant temperature valve core, comprising an upper housing 1, a lower housing 2, a plunger assembly 3, a guide rod 4, a knurled rod 5, a paraffin wax temperature sensor 6 and a working spring 7. The upper housing 1 is connected to the lower housing 2. The lower housing 1 has a cold water inlet 22, a hot water inlet 23 and a mixed water outlet 21. The paraffin wax temperature sensor 6 is arranged axially in the upper housing 1 and the lower housing 2. The guide rod 4 is arranged above the paraffin wax temperature sensor 6 in the housing upper 1. The knurled rod 5 is arranged at the upper end of the upper housing 1. The knurled rod 5 is threadedly connected to the guide rod 4 which can be moved upwards and outwards. ia down.
    [0082] The plunger assembly 3 comprises a sealing sleeve 31, a connecting sleeve 32, an upper plunger cover 33, a plunger base 34, and a protection spring 35. The sealing sleeve 31 and connecting sleeve 32 are wrapped movably on the paraffin wax temperature sensor 6. The sealing sleeve 31 is arranged above the connection sleeve 32. The sealing sleeve 31 and the connection sleeve 32 fit together. The upper part of the paraffin wax temperature sensor 6 extends out of the sealing sleeve 31. The upper part of the connection sleeve 32 rests against the sealing sleeve 31. The lower part of the connection sleeve 32 rests against the paraffin wax temperature sensor 6. The top cover 33 of the plunger and the base 34 of the plunger movably fit together. The middle portion of the upper cover 33 of the plunger has water inlet holes 331. The middle portion of the base 34 of the plunger has water outlet holes 341. The upper part of the upper cover 33 of the plunger bears against the bushing seal 31. The bottom of the plunger base 34 abuts against the connecting sleeve 32. The protection spring 35 is provided between the upper plunger cover 33 and the plunger base 34, thus allowing the upper cover 33 of the plunger, the protection spring 35 and the plunger base 34 are firmly locked between the sealing gland 31 and the connection sleeve 32. The lower end of the working spring 7 rests elastically against the bottom of the lower housing 2, and the upper end of the working spring 7 rests elastically against the lower part of the base 34 of the plunger.
    [0084] A cold water inlet opening 332 corresponding to the cold water inlet 11 is formed between the upper cap 33 of the plunger and the upper housing 1. A hot water inlet opening 342 corresponding to the hot water inlet 21 is formed between the base 34 of the plunger and the lower housing 2.
    [0086] To improve the installation stability of the protection spring 35, the protection spring 35 is wrapped in the connection sleeve 32.
    [0088] Also, a water inlet ring 333 is formed in the upper cover 33 of the plunger. The water inlet ring 333 is formed with a plurality of water inlet holes 331 distributed at equal intervals. A water outlet ring 343 is formed at the base 34 of the plunger. The water outlet ring 343 is formed with a plurality of water outlet holes 341 distributed at equal intervals.
    [0090] To improve the sealing performance of the plunger assembly 3, a sealing ring 8 is provided between the upper cover 33 of the plunger and the base 34 of the plunger.
    [0092] In a preferred embodiment, the lower part of the guide rod 4 is connected with a locking nut 41. The upper end of the sealing cap 31 is inserted into the locking nut 41. The locking nut 41 has a limit flange at the same to restrict the downward movement of the sealing bushing 31. The locking nut 41 is configured to restrict the sealing bushing 31 to ensure that the upper cover 33 of the plunger and the base 34 of the plunger move within the range of movement Paraffin wax temperature sensor 6 safe to prevent over-extrusion and damage to the paraffin wax temperature sensor 6.
    [0094] In a preferred embodiment, the constant temperature valve core of the present invention further comprises an impeller 9 installed in the mixed water outlet 21 of the lower housing 2. The impeller 9 is formed by a plurality of impeller holes 91 distributed at intervals equal. After passing through the plurality of water inlet holes 331 and the plurality of water outlet holes 341, cold water flows to the hot water area at the lower end to be premixed with hot water and then thoroughly mixed at through holes 91 of impeller impeller 9 in lower housing 2. Finally, water flows into the temperature sensing area of paraffin wax temperature sensor 6 to improve the temperature stability of the water discharged from the core valve.
    [0095] When in use, the knurled rod 5 is rotated to push the guide rod 4 downward. When the guide rod 4 is moved down to press against the hot paraffin temperature sensor 6, it will push the hot paraffin temperature sensor 6 down. When the guide rod 4 is moved downward to press against the sealing gland 31, it will push the sealing gland 31 downwards. The sealing bush 31 will push the upper cover 33 of the plunger downwards to increase the cold water inlet opening 332. In this process, due to the action of the protection spring 35, the upper cover 33 of the plunger needs to be pushed with a greater thrust from the sealing gland to move down. Therefore, the cold water inlet opening 332 between the upper cover 33 of the plunger and the upper housing 1 is made larger so that large impurities pass through it, without getting stuck between the end face of the cover. 33 of the plunger and the end face of the upper housing 1. In addition, the thrust exerted on the paraffin wax temperature sensor 6 is dampened by the protection spring to prevent the paraffin wax temperature sensor 6 from being damaged due to excessive force.
    [0097] When the knurled rod is rotated in reverse, the guide rod and lock nut are pushed upward to actuate connecting sleeve 32 and lock nut 31 to move upward. At this point, since the upper plunger cover 33 and the plunger base 34 are restricted and locked between the sealing gland 31 and the connecting sleeve 32, the upper plunger cover 33 and the plunger base 34 move toward up, and the working spring 35 compressed by the base 34 of the plunger is returned. The hot water inlet opening 341 is enlarged and the cold water inlet opening 331 is reduced. In this process, due to the action of the protection spring 35, the base 34 of the plunger needs a great thrust to move upwards, so that the hot water inlet opening is enlarged. The force exerted on the upper cover 33 of the plunger is dampened by the protection spring 35, so that the cold water inlet opening 331 can be kept large enough.
    [0099] Although particular embodiments of the present invention have been described in detail for purposes of illustration, various modifications and improvements can be made without departing from the spirit and scope of the present invention. Accordingly, the present invention is not limited except by the appended claims.
    权利要求:
    Claims (6)
    [1]
    1. A jam-proof and clog-proof constant temperature valve core, comprising an upper housing (1), a lower housing (2), a plunger assembly (3), a guide rod (4), a ribbed rod (5), a paraffin wax temperature sensor (6) and a working spring (7); the lower housing (1) having a cold water inlet (22), a hot water inlet (23) and a mixed water outlet (21); the paraffin wax temperature sensor (6) being arranged axially in the upper housing (1) and in the lower housing (2), the guide rod (4) being arranged on the paraffin wax temperature sensor (6 ) in the upper housing (1), the knurled rod (5) being arranged at an upper end of the upper housing (1), the knurled rod (5) being threadedly connected to the guide rod (4) which can be move up and down;
    characterized in that: the plunger assembly (3) comprises a sealing sleeve (31), a connecting sleeve (32), an upper plunger cover (33), a plunger base (34) and a protection spring (35 ); The sealing sleeve (31) and the connection sleeve (32) are movably wrapped in the paraffin wax temperature sensor (6), the sealing sleeve (31) is arranged above the connection sleeve (32 ), the sealing cap (31) and the connecting sleeve (32) fit together, an upper part of the paraffin wax temperature sensor (6) protrudes from the sealing cap (31), an upper part of the connection (32) is supported against the sealing sleeve (31), a lower part of the connection sleeve (32) is supported against the paraffin wax temperature sensor (6); an intermediate portion of the upper cover (33) of the plunger has water inlet holes (331), an intermediate portion of the base (34) of the plunger has water outlet holes (341), the upper cover (33) of the plunger and plunger base (34) movably engage with each other, an upper part of the upper cover (33) of the plunger bears against the sealing sleeve (31), a lower part of the plunger base (34) is supported against the connection sleeve (32), the protection spring (35) is provided between the upper cover (33) of the plunger and the base of the plunger (34), thus allowing the upper cover (33) of the plunger, the protection spring (35) and the plunger base (34) are firmly locked between the sealing sleeve (31) and the connection sleeve (32); a lower end of the working spring (7) is elastically supported against a lower part of the lower housing (2), an upper end of the working spring (7) is elastically supported against the lower part of the base (34) of the plunger;
    a cold water inlet opening (332) corresponding to the cold water inlet (11) is formed between the upper cover (33) of the plunger and the upper housing (1), and a hot water inlet opening (342) corresponding to the hot water inlet (21) is formed between the base (34) of the plunger and the lower housing (2).
    [2]
    The clog-proof and clog-proof constant temperature valve core according to claim 1, wherein the protection spring (35) is wrapped in the connecting sleeve (32).
    [3]
    The jam-proof and clog-proof constant temperature valve core according to claim 1, wherein a water inlet ring (333) is formed on the upper cover (33) of the plunger, the ring The water inlet ring (333) is formed with the water inlet holes (331) distributed at equal intervals, a water outlet ring (343) is formed at the base (34) of the plunger, and the water outlet ring Water (343) is formed with the water outlet holes (341) distributed at equal intervals.
    [4]
    The clog-proof and clog-proof constant temperature valve core according to claim 1, wherein a sealing ring (8) is provided between the upper cover (33) of the plunger and the base (34 ) of the plunger.
    [5]
    The clog-proof and clog-proof constant temperature valve core according to claim 1, wherein a lower part of the guide rod (4) is connected with a lock nut (41), a The upper end of the sealing gland (31) is inserted into the locking nut (41), and the locking nut (41) has a limit flange thereon to restrict the downward movement of the sealing gland (31).
    [6]
    The clog-proof and clog-proof constant temperature valve core according to claim 1, further comprising an impeller (9) installed in the mixed water outlet (21) of the lower housing (2), being the impeller (9) formed with a plurality of impeller holes (91) distributed at equal intervals.
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    同族专利:
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    GB2583326A|2020-10-21|
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    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE2821094C3|1978-05-13|1981-03-12|Friedrich Grohe Armaturenfabrik Gmbh & Co, 5870 Hemer|Thermostatically controlled mixing valve|
    DE3740040A1|1987-11-26|1989-06-08|Grohe Armaturen Friedrich|Thermostatically controlled mixing valve|
    DE102007055455B4|2007-11-09|2014-03-13|Hansgrohe Se|thermostatic valve|
    CN201281166Y|2008-10-16|2009-07-29|乔登卫浴有限公司|Anti-clogging thermo valve|
    CN101509559B|2009-03-25|2011-01-26|厦门市易洁卫浴有限公司|Thermostatic controlled valve|
    CN101551027B|2009-05-05|2012-05-23|路达工业有限公司|Constant temperature mixed valve core|
    CN101718358B|2009-11-24|2012-07-04|梁增利|Self-heating metal thermostatic tap|
    US20110168927A1|2010-01-14|2011-07-14|Chia-Hua Yuan|Temperature controlled valve core|
    CN102135195B|2010-01-26|2012-12-19|深圳成霖洁具股份有限公司|Thermostat valve plug|
    CN203627911U|2013-12-05|2014-06-04|台州市国人温控卫浴设备有限公司|High-flow single-control constant-temperature valve core|
    CN105179742B|2015-09-25|2018-04-10|鹤山市未来我来温控卫浴有限公司|Temperature controlled valve core|
    CN106763898A|2017-01-10|2017-05-31|鹤山市未来我来温控卫浴有限公司|A kind of memorial alloy temperature controlled valve core structure|
    CN207064716U|2017-06-22|2018-03-02|厦门松霖科技股份有限公司|One kind switching temperature controlled valve core|
    法律状态:
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    优先权:
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    PCT/CN2018/085048|WO2019196142A1|2018-04-10|2018-04-28|Clogging-proof and jamming-proof constant-temperature valve core|
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