• 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:
    A pressure gauge includes a shell (10), a graduated panel (20), a needle (30), a piston assembly, and a gear transmission assembly. The shell (10) has a front end plate, a rear end plate and a piston base mounted on the inner surface of the rear end plate. The graduated panel (20) is mounted between the front end plate and the rear end plate. The needle (30) is mounted on a front surface of the graduated panel (20). The piston assembly is mounted in the piston base. The gear transmission assembly is mounted between the rear end plate and the graduated panel.
    公开号:FR3080451A1
    申请号:FR1904076
    申请日:2019-04-16
    公开日:2019-10-25
    发明作者:Yung-Hao Yang
    申请人:Jiao Hsiung Ind Corp；
    IPC主号:
    专利说明:

    Description
    Title of the invention: MANOMETER The invention relates to a pressure gauge and, more particularly, a pressure gauge which can measure the fluid pressure.
    A pressure gauge is generally used to measure pressures of fluids, such as a gas or a liquid in closed pipes. If we refer to Figure 9, we can see that a classic type of pressure gauge is a Bourdon tube type pressure gauge. The Bourdon tube type pressure gauge has an inlet pressure tube 61, a Bourdon tube 62, a transmission mechanism 63 and a needle 64. The inlet pressure tube 61 communicates with a closed tube. The Bourdon tube 62 is C-shaped and has an open end 621 and a closed end 622. The open end 621 of the Bourdon tube 62 is connected to and communicates with the inlet pressure tube 61. The closed end 622 of the Bourdon tube 62 is connected to the needle 64 via the transmission mechanism 63. When the fluid in the closed tube flows into the Bourdon tube 62 via the tube input pressure 61, the Bourdon tube 62 extends outward and deforms due to the pressure. This causes the closed end 622 of the Bourdon tube 62 to drive the transmission mechanism 63 to rotate the needle 64 and, therefore, the needle may exhibit the pressure value in the closed tube.
    The drawback of using the Bourdon tube type pressure gauge is that the deformation of the Bourdon tube 62 is unstable at the initial stage of deformation and close to the elastic limit. Therefore, when the measured pressure value is smaller than or close to the elastic limit of the Bourdon tube 62, the pressure value cannot be precise.
    [0004] American patent 9,677,965, titled “MANOMETER”, discloses a pressure gauge having a shell, a shaft, a piston and a pinion. The shaft and piston are mounted in the hull and one end of the shaft extends out of the hull. The end extending from the tree shell is connected to a needle. The pinion is mounted around the shaft. A direction of movement of the piston is perpendicular to the shaft. An external end part of the piston corresponds to a lateral opening of a side wall of the shell and an internal end of the piston is connected to a rack by means of an extension part. The rack is engaged with the pinion. Consequently, when the fluid in the closed pipe pushes the piston from the lateral opening of the shell, the shaft and the needle are made to rotate via the rack and pinion, thus indicating the value fluid pressure in the sealed line.
    The problem with the above pressure gauge is that the piston must be connected to the rack to cause the pinion and the shaft to rotate. The space occupied by the piston and the rack in the hull is large. Due to the space required for actuating the rack, the pressure gauge shell is large and cannot be further reduced, and therefore a pressure gauge using a piston and a pinion to cause the needle to rotate cannot not be used in a small closed circuit.
    The main objective of the present invention is to provide a pressure gauge which can measure the fluid pressure.
    The present invention relates to a pressure gauge, characterized in that it comprises:
    a shell having:
    - a transparent front end plate;
    - a rear end plate having an internal surface and a through hole formed through the rear end plate;
    - a piston base mounted on the inner surface of the rear end plate and having a guide recess which is formed in an upper surface of the piston base and is perpendicular to the rear end plate, a position of l 'guide recess corresponding to a position of the through hole;
    a graduated panel mounted between the front end plate of the hull and the rear end plate of the hull;
    a needle mounted on a front surface of the graduated panel;
    a piston assembly mounted in the piston base of the shell and having:
    - a body mounted in the guide recess of the piston base, movable between the front end plate of the shell and the graduated panel, and having a peripheral wall, a front end part, an end part rear and a rack portion formed on the peripheral wall of the body, teeth of the rack portion being disposed along a direction of movement of the body;
    - A piston ring mounted around the body, located between the rear end part and the rack part of the body, and bearing against a wall of the guide recess in an airtight manner; and
    - An elastic element mounted between the body and the graduated panel and having two ends bearing respectively against the body and against the graduated panel; and a gear transmission assembly mounted between the aft hull end plate and the graduated panel, connected to the body, mounted through the graduated panel and connected to the needle.
    [0008] The gear transmission assembly can have:
    a first transmission element having a first rod, an input pinion formed around the first rod and in engagement with the rack portion of the body, and a drive pinion formed around the first rod;
    at least a second transmission element, the or each of the second transmission elements having a second rod, the or one of the second transmission elements having an outlet end mounted through the graduated panel and connected to the needle; and a transmission pinion formed around the second rod of the or one of the second transmission elements and in engagement with the drive pinion of the first transmission element.
    The drive pinion of the first transmission element can be a spur gear and the transmission pinion can be a flat wheel.
    The at least one second transmission element may comprise two second transmission elements, the second rods of the two second transmission elements are adjacent and parallel to each other, the second rod of each second transmission element has a driven pinion formed around an outer surface of the second rod, and the driven pinions of the two second transmission elements are engaged with each other.
    According to a particular embodiment, the piston base of the shell has a limiting recess formed in the piston base, perpendicular to the rear end plate and communicating with the through hole, and the body of the piston assembly has a positioning block protruding from the peripheral wall of the body and inserted into the limiting recess.
    According to a particular embodiment, the shell has a receiving cylinder having a first end having an opening, and a second end, the rear end plate being mounted at the second end of the receiving cylinder, and the shell has a side cover covering the opening of the receiving cylinder and mounted on the receiving cylinder, and the front end plate is mounted on the side cover.
    The graduated panel can be mounted between the side cover of the shell and the piston base.
    The body may further have a mounting recess formed in the front end portion of the body, and the elastic member is mounted in the mounting recess of the body.
    Other objectives, advantages and new features of the present invention will become more apparent on reading the following detailed description, taken in conjunction with the accompanying drawings.
    In these drawings:
    [Fig.l] is a top view of a pressure gauge according to the present invention.
    [Fig.2] is an exploded perspective view of the manometer of Ligure 1.
    [Fig.3] is another exploded perspective view of the manometer of Ligure 1.
    [Fig.4] is another exploded perspective view of the pressure gauge in Figure 1.
    [Fig.5] is a perspective view of a piston assembly and a gear transmission assembly of the pressure gauge of Figure 1.
    [Fig.6] is a side view of the pressure gauge in Figure 1.
    [Fig.7] is another top view of the pressure gauge in Figure 1.
    [Fig.8] is another top view of the pressure gauge of Figure 1, shown without needle.
    [Fig.9] is a top view of a conventional Bourdon tube type pressure gauge.
    Referring to Figures 1 and 2, it can be seen that a pressure gauge according to the present invention comprises a shell 10, a graduated panel 20, a needle 30, a piston assembly 40 and a transmission assembly to gear 50.
    Referring to Figures 1, 2 and 4, it can be seen that the shell 10 is a cylinder and has a front end plate 11, a rear end plate 12 and a piston base 13 The shell 10 has a front side and a rear side. The front end plate 11 is mounted on the front side of the shell 10 and is transparent. The rear end plate 12 is mounted on the rear side of the shell 10. The rear end plate 12 has an internal surface and a through hole 121. The internal surface of the rear end plate 12 faces a interior of the shell 10. The through hole 121 is formed through the rear end plate 12. The piston base 13 is mounted on the inner surface of the rear end plate 12 and has a guide recess 131 and a limiting recess 132. The guide recess 131 is formed in an upper surface of the piston base 13 and is perpendicular to the rear end plate 12. The position of the guide recess 131 corresponds to the position of the hole through 121. The guide recess 131 communicates with the through hole 121. The limiting recess 132 is also perpendicular to the rear end plate 12 and the limiting recess 132 communicates with the through hole 121.
    In this embodiment, the shell 10 has a receiving cylinder 101 and a side cover 102. The receiving cylinder 101 has a first end and a second end. The first end of the receiving cylinder 101 is an opening. The rear end plate 12 is mounted on the second end of the receiving cylinder 101. The front end plate 11 is mounted on the side cover 102. The side cover 102 covers the opening of the receiving cylinder 101 and is mounted on the receiving cylinder 101.
    If one refers to Figures 1, 2, 4 and 6, the graduated panel 20 is mounted between the front end plate 11 of the shell 10 and the rear end plate 12 of the shell 10. In particular, the graduated panel 20 is mounted between the side cover 102 of the shell 10 and the piston base 13. The graduated panel 20 has a front surface 21 and a rear surface 22. The front surface 21 of the graduated panel 20 is turned to the front end plate 11. Graduations 23 are formed on the front surface 21 of the graduated panel 20 and the graduations 23 may have the pressure value. The rear surface 22 of the graduated panel 20 faces the rear end plate
    12.
    The needle 30 is mounted on the front surface 21 of the graduated panel 20.
    If we refer to Ligures 3 and 5, we can see that the piston assembly 40 is mounted in the piston base 13 of the shell 10 and has a body 41, a piston ring 42 and an element elastic 43.
    The body 41 is mounted in the guide recess 131 of the piston base 13. The body 41 can be moved between the rear end plate 12 of the shell 10 and the graduated panel 20. The body 41 has a peripheral wall, a front end part, a rear end part, a rack part 411 and a positioning block 412. The front end part of the body 41 faces the graduated panel 20. The part rear end of the body 41 is turned towards the rear end plate 12 of the shell 10. The rack part 411 is formed on the peripheral wall of the body 41. Teeth of the rack part 411 are arranged along a direction of movement of the body 41. The positioning block 412 projects from the peripheral wall of the body 41 and the positioning block 412 is introduced into the limiting recess 132 of the piston base 13. Consequently, the body 41 can only move in a linear direction between the rear end plate 12 of the shell 10 and the graduated panel 20.
    The piston ring 42 is mounted around the body 41 and is located between the rear end part and the rack part 411 of the body 41. The piston segment 42 is pressed against a wall of the guide recess 131 in an airtight manner.
    The elastic element 43 is mounted between the body 41 and the graduated panel 20. The elastic element 43 has two ends bearing respectively against the body 41 and against the graduated panel 20. The elastic element 43 pushes the body 41 towards the rear end plate 12 of the shell 10. In particular, the elastic element 43 is a compression spring. In this embodiment, the body 41 further has a mounting recess 413 formed in the front end portion. The elastic element 43 is mounted in the mounting recess 413 of the body 41.
    If we refer to Liguria 5 to 8, we can see that the gear transmission assembly 50 is mounted between the rear end plate 12 of the shell 10 and the graduated panel 20. The assembly gear transmission 50 is connected to the body 41 and is mounted through the graduated panel 20. The gear transmission assembly 50 is connected to the needle 30. The gear transmission assembly 50 is driven by the body 41 and causes the needle 30 to rotate. In particular, the gear transmission assembly 50 has a first transmission element 51, at least a second transmission element 52 and a transmission pinion 53.
    The first transmission element 51 has a first rod 511, an input pinion
    512 and a drive pinion 513. The input pinion 512 and the drive pinion 513 are formed around the first rod 51. The input pinion 512 is engaged with the rack part 411 of the body 41. When the body 41 moves back and forth in a straight line, the body 41 can cause the first transmission element 51 to rotate.
    The or each of the second transmission elements 52 has a second rod 521. The or one of the second transmission elements 52 has an outlet end 5211.
    The outlet end 5211 is mounted through the graduated panel 20 and is connected to the needle 30, and this allows the needle 30 to pivot relative to the second rod 521. In particular, when the at least one second transmission element 52 includes multiple transmission elements 52, the second rods 521 of the multiple transmission elements 52 are adjacent and parallel to each other. Each second rod 521 has a driven pinion 522 formed around an outer surface of the second rod 521. The driven pinions 522 of two adjacent second transmission members 52 are engaged with each other, and this allows the second transmission elements 52 to rotate synchronously.
    The transmission pinion 53 is formed around the second rod 521 of the or one of the second transmission elements 52. The transmission pinion 53 is engaged with the drive pinion 513 of the first transmission element 51 Consequently, when the first transmission element 51 is made to rotate, the first transmission element 51 can cause the at least one second transmission element 52 to rotate via the transmission pinion 53 directly or indirectly, and causes the needle 30 to rotate.
    In this embodiment, the drive pinion 513 of the first transmission element 51 is a pinion with straight teeth and the transmission pinion 53 is a flat wheel. By the cooperation of the spur gear and the flat wheel, the first transmission element 51 can rotate the second transmission element 52. As a variant, the drive pinion 513 of the first transmission element 51 and the transmission pinion 53 can be bevel gears.
    In this embodiment, the at least one second transmission element 52 comprises two second transmission elements 52. The two second transmission elements 52 rotate at the same time by the engagement of the two driven pinions 522.
    When the pressure gauge according to the present invention is in use, the fluid presses on the body 41 through the through hole 121 of the shell 10 and the body 41 causes the needle 30 to rotate through the the gear transmission assembly 50. When the fluid pressure value is greater, the bearing distance of the body 41 is longer and the deflection angle of the needle 30 is greater. Therefore, the fluid pressure value can be presented. After the fluid pressure is released, the elastic member 43 pushes the body 41 to return to an initial position. The body 41 causes the needle 30 to rotate in the opposite direction through the gear transmission assembly 50 and return to zero. Since the manometer according to the present invention reflects the pressure value of the fluid as a function of the linear bearing distance of the body 41, it is easy to choose the elastic element 43 to have the appropriate coefficient of elasticity.
    In addition, the rack part 411 of the body 41 can cause the gear transmission assembly 50 to operate, so that the piston assembly 40 and the gear transmission assembly 50 can be of compact structure. Consequently, the pressure gauge according to the present invention can be made with a small dimension and can be applied in a small closed tube.
    权利要求:
    Claims (1)
    [1" id="c-fr-0001]
    claims [Claim 1] Pressure gauge, characterized in that it includes:a shell (10) having:- a front end plate (11) which is transparent;- a rear end plate (12) having an internal surface and a through hole (121) formed through the rear end plate (12);- a piston base (13) mounted on the inner surface of the rear end plate (12) and having a guide recess (131) which is formed in an upper surface of the piston base (13) and is perpendicular at the rear end plate (12), a position of the guide recess (131) corresponding to a position of the through hole (121);a graduated panel (20) mounted between the front end plate (11) of the hull (10) and the rear end plate (12) of the hull (10); a needle (30) mounted on a front surface of the graduated panel (20); a piston assembly (40) mounted in the piston base (13) of the shell (10) and having:a body (41) mounted in the guide recess (131) of the piston base (13), movable between the front end plate (12) of the shell (10) and the graduated panel (20), and having a peripheral wall, a front end part, a rear end part and a rack part (411) formed on the peripheral wall of the body (41), teeth of the rack part (411) being disposed along 'a direction of movement of the body (41);a piston ring (42) mounted around the body (41), located between the rear end part (12) and the rack part (411) of the body (41), and in abutment against a wall of the recess of guide (131) in an airtight manner; andan elastic element (43) mounted between the body (41) and the graduated panel (20) and having two ends in abutment respectively against the body (41) and against the graduated panel (20); anda gear transmission assembly (50) mounted between the rear end plate (12) of the shell (10) and the graduated panel (20), connected to the body (41), mounted through the graduated panel (20) and connected to the needle (30). [Claim 2] Pressure gauge according to claim 1, characterized in that the gear transmission assembly (50) has:
    a first transmission element (51) having a first rod (511), an input pinion (512) formed around the first rod (511) and in engagement with the rack part (411) of the body (41), and a drive pinion (513) formed around the first rod (511);at least one second transmission element (52), the or each of the second transmission elements (52) having a second rod (521), the or one of the second transmission elements (52) having an outlet end (5211 ) mounted through the graduated panel (20) and connected to the needle (30); anda transmission pinion (53) formed around the second rod (521) of the or one of the second transmission elements (52) and in engagement with the drive pinion (513) of the first transmission element (51) . [Claim 3] Pressure gauge according to claim 2, characterized in that the drive pinion (513) of the first transmission element (51) is a pinion with straight teeth and the transmission pinion (53) is a flat wheel. [Claim 4] Pressure gauge according to claim 2, characterized in that the at least one second transmission element (52) comprises two second transmission elements (52), the second rods (521) of the two second transmission elements (52) are adjacent and parallel to each other, the second rod (521) of each second transmission element (52) has a driven pinion (522) formed around an outer surface of the second rod (521), and the pinions driven (522) of the two second transmission elements (52) are engaged with each other. [Claim 5] A pressure gauge according to claim 3, wherein the at least one second transmission element (52) comprises two second transmission elements (52), the second rods (521) of the two second transmission elements (52) are adjacent and parallel l to each other, the second rod (521) of each second transmission element (52) has a driven pinion (522) formed around an outer surface of the second rod (521), and the driven pinions (522 ) of the two second transmission elements (52) are engaged with each other. [Claim 6] Pressure gauge according to any one of Claims 1 to 5, characterized in that:the piston base (13) of the shell (10) has a limiting recess (132) formed in the piston base (13), perpendicular to the rear end plate (12) and communicating with the through hole (121 ); and
    the body (41) of the piston assembly (40) has a positioning block (412) protruding from the peripheral wall of the body (41) and inserted into the limiting recess (132). [Claim 7] Pressure gauge according to any one of Claims 1 to 5, characterized in that: the shell (10) has:- a receiving cylinder (101) having a first end having an opening, and a second end, the rear end plate (12) being mounted at the second end of the receiving cylinder (101);- a side cover (102) covering the opening of the receiving cylinder (101) and mounted on the receiving cylinder (101); andthe front end plate (11) is mounted on the side cover (102). [Claim 8] Pressure gauge according to claim 7, characterized in that the graduated panel (20) is mounted between the side cover (102) of the shell (10) and the piston base (13). [Claim 9] Pressure gauge according to any one of Claims 1 to 5, characterized in that:the body (41) further has a mounting recess (413) formed in the front end portion of the body (41); andthe elastic element (43) is mounted in the mounting recess (413) of the body (41).
    1/6
    类似技术:
    公开号 | 公开日 | 专利标题
    FR3080451A1|2019-10-25|GAUGE
    EP2134986A2|2009-12-23|Device for converting a pivoting movement of a pinion into a translational movement of a slide, and valve comprising such a device
    FR2479396A1|1981-10-02|PNEUMATIC STRANGER DEVICE
    EP2062610B1|2013-07-10|Device for inflating a small balloon
    FR2829217A1|2003-03-07|DEVICE FOR CONTROLLING THE DELIVERY OF A FLUID
    CA2053535C|2000-01-18|Slat support system for slat spring
    EP0805278A1|1997-11-05|Pneumatic actuating device
    FR2787144A1|2000-06-16|Transmitting lever for transmitting the action of an actuator to a positioning member, used in a fuel vehicle injection valve
    FR2962986A1|2012-01-27|DEVICE FOR DISPENSING A LIQUID, AND METHOD FOR MANUFACTURING SUCH A DEVICE.
    FR2645206A1|1990-10-05|Air valve for a diaphragm pump
    EP1094294B1|2002-12-04|Linear or angular displacement measuring device
    FR2515560A1|1983-05-06|RATCHET TOOL
    CA2349705C|2017-05-09|Fluid expansion valve with limited angular travel rotary control
    FR3041712B1|2019-09-27|CENTRAL AIR COMPRESSOR PART
    FR2715437A1|1995-07-28|Device for measuring and recycling of exhaust gas, particularly for exhaust gas of diesel engine
    FR2674957A3|1992-10-09|Preset pressure gauge for tyre
    EP2401536B1|2013-04-03|Oleopneumatic control device for a valve with pneumtaic locking means
    FR2629591A1|1989-10-06|Compact pressure indicator
    FR2648533A1|1990-12-21|VALVE CONTROL DEVICE AND VALVE COMPRISING SUCH A CONTROL DEVICE
    EP0424284A1|1991-04-24|Means for regulating the pressure of a motorcycle fork
    FR2485149A1|1981-12-24|IMPROVEMENTS IN SLEEVE VALVES
    FR2546292A1|1984-11-23|Flow meter intended to measure the flow rate of a gaseous fluid
    FR2533978A1|1984-04-06|TRANSMISSION AND GUIDANCE DEVICE COMBINING A JACK AND A TRANSMISSION ELEMENT
    FR3028199A1|2016-05-13|ELECTROPORTATIVE MOTORIZED TOOL WITH ERGONOMIC CONTROL.
    FR2509381A1|1983-01-14|FUEL INJECTION PUMP
    同族专利:
    公开号 | 公开日
    TWI662263B|2019-06-11|
    TW201944045A|2019-11-16|
    DE102019106537A1|2019-10-24|
    JP2019191164A|2019-10-31|
    CN110389004B|2021-04-30|
    JP6678904B2|2020-04-15|
    US20190323913A1|2019-10-24|
    CN110389004A|2019-10-29|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    CA2008491A1|1990-01-24|1991-07-24|Tien-Tsai Huang|Pressure gauge|
    CN2305668Y|1996-12-20|1999-01-27|吴清祥|Improved driving member for pressure meter|
    CN1202619A|1997-06-16|1998-12-23|陈春祥|Measuere for fluid pressure|
    US5965822A|1998-04-22|1999-10-12|Wu; Min|Calibration feature for a pressure gauge|
    CN1246612A|1998-12-29|2000-03-08|陈春祥|Liquid pressure measurer|
    CN101377443A|2008-06-30|2009-03-04|杨国华|Mechanical type air-pressure gage|
    CN202974542U|2012-11-27|2013-06-05|凯迈（洛阳）气源有限公司|Bellows-type pressure gauge|
    TWI494552B|2013-02-01|2015-08-01|Wen San Chou|Manometer|
    CN203178028U|2013-02-25|2013-09-04|王如文|Improved structure for pressure gauge|
    CN204027760U|2014-07-18|2014-12-17|格力休闲体育用品有限公司|A kind of tensimeter|
    JP5964976B2|2014-07-28|2016-08-03|旭産業株式会社|Pressure gauge|
    CN105043642A|2015-08-15|2015-11-11|重庆布莱迪仪器仪表有限公司|Hydraulic transmission pressure gauge|
    CN207007405U|2017-06-21|2018-02-13|慈溪市华舟仪表有限公司|It is a kind of to be easy to fixed pressure gauge|
    CN107314856B|2017-08-16|2019-09-13|温州大学|A kind of pressure inflatable table|
    CN107702826A|2017-11-10|2018-02-16|仙居县众鑫仪表制造有限公司|Spring manometer switching mechanism|
    TWM565300U|2018-04-18|2018-08-11|僑雄實業股份有限公司|Pressure gauge|CN111504544B|2020-04-30|2021-11-02|青岛金渊焊割设备有限公司|Pressure gauge|
    CN112229712A|2020-11-02|2021-01-15|上海塑茜劳防用品有限公司|Water pressure detection device|
    法律状态:
    2020-01-22| PLFP| Fee payment|Year of fee payment: 2 |
    2021-02-12| PLFP| Fee payment|Year of fee payment: 3 |
    2021-10-01| PLSC| Publication of the preliminary search report|Effective date: 20211001 |
    2022-01-27| PLFP| Fee payment|Year of fee payment: 4 |
    优先权:
    申请号 | 申请日 | 专利标题
    TW107113190|2018-04-18|
    TW107113190A|TWI662263B|2018-04-18|2018-04-18|Pressure gauge|
    [返回顶部]