• 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:
    The invention describes a manual synchronous telescopic mechanism comprising an outer guide beam (1) and a seat of the reducer (2). The double output shaft reducer is placed on the seat of the reducer. The left end of the double output shaft reducer is connected to a first flexible coupling. The first flexible coupling is connected to the right screw. The right end of the first telescopic shaft is provided with a right nut. The right nut surrounds the right screw. The right end of the double output shaft reducer is connected to a second flexible coupling. The second flexible coupling is connected to the left screw. The left end of the second telescopic shaft is provided with a left nut. The left nut surrounds the left screw. The double output shaft reducer is connected to the handle (12). The manual synchronous telescopic mechanism of the present invention can be used to synchronously stretch the first and second telescopic axes; using linear bearings, the coefficient of friction is low in order to reduce the crank force; the use of the flexible coupling can decrease the demand for delicacy of manufacture so that the left and right screws are not blocked; The dust cover (15,16) is used to prevent the ingress of external dust, which can reduce the failure rate of the left and right screws.
    公开号:CH715844A2
    申请号:CH00009/20
    申请日:2020-01-07
    公开日:2020-08-14
    发明作者:Lan Yangchun；Dai Qiming；Wang Jian
    申请人:Shanghai Point High-Rise Equipment Co Ltd；Pinghu Point High-Rise Equipment Co Ltd；
    IPC主号:
    专利说明:

    Technical area
    [0001] The present invention relates to a manual synchronous telescopic mechanism.
    Prior art
    [0002] The existing telescopic mechanism can only perform extension and contraction in one direction by a single telescopic axis and cannot achieve synchronous extension and contraction in both directions of the left and right telescopic axes. Since the telescopic axle is exposed to the outside during the extension process, it is easy to get dirty with outside dust. When the telescopic axis is retracted, the external dust is brought inside the telescopic mechanism, which easily causes malfunction of the telescopic mechanism.
    Summary of invention
    [0003] The present invention proposes a manual synchronous telescopic mechanism.
    [0004] The existing telescopic mechanism can only perform one-way extension and contraction by a single telescopic axis and cannot achieve synchronous extension and contraction in both directions of the left and right telescopic axes. Since the telescopic axle is exposed to the outside during the extension process, it is easy to get dirty with outside dust. When the telescopic axis is retracted, the external dust is brought inside the telescopic mechanism, which easily causes malfunction of the telescopic mechanism. The object of this invention is to solve the above problem of the prior art.
    [0005] The present invention proposes a following technical solution: a manual synchronous telescopic mechanism comprises: an external guide beam and a seat of the reducer. The double output shaft reducer is placed on the seat of the reducer. The left end of the double output shaft reducer is connected to a first flexible coupling. The first flexible coupling is connected to the right screw. The right end of the first telescopic shaft is provided with a right nut. The right nut surrounds the right screw. The right end of the double output shaft reducer is connected to a second flexible coupling. The second flexible coupling is connected to the left screw. The left end of the second telescopic shaft is provided with a left nut. The left nut surrounds the left screw. The double output shaft reducer is connected to the handle.
    [0006] The outer guide beam is provided with a first linear bearing and a second linear bearing. The first linear bearing is disposed on the left side of the outer guide beam, the second linear bearing is disposed on the right side of the outer guide beam. The first linear bearing surrounds the outer side of the first telescopic shaft, the second linear bearing surrounds the outer side of the second telescopic shaft.
    [0007] Preferably, the left end of the outer guide beam is connected to the first dust cover. The other end of the first dust cover is attached to the first telescopic shaft through the housing attachment seat. The right end of the outer guide beam is connected to the second dust cover. The other end of the second dust cover is attached to the second telescopic shaft through the housing attachment seat.
    [0008] Preferably, the first anti-dust sheath and the second anti-dust sheath are telescopic anti-dust sheaths.
    Preferably, the first anti-dust sheath is located outside the left side of the first telescopic axis. The left end of the first telescopic shaft extends outside the first dust cover. The second dust cover is located on the outside of the left side of the second telescopic shaft. The left end of the second telescopic shaft extends outside the second dust cover.
    Preferably, the seat of the reducer is fixed in the middle of the outer guide beam by a flange.
    [0011] Preferably, the left end of the right screw is provided with a screw rod limiting sleeve, The right end of the left screw is provided with a screw rod limiting sleeve.
    [0012] The invention has the beneficial effect that the manual synchronous telescopic mechanism has a reasonable design and a simple structure. It can be used to synchronously stretch the first and second telescopic axes; using linear bearings, the coefficient of friction is low in order to reduce the crank force; the use of the flexible coupling can decrease the demand for delicacy of manufacture so that the left and right screws are not blocked; The dust cover is used to prevent the ingress of external dust, which can reduce the failure rate of left and right screws.
    Description of the drawings
    [0013]<tb> <SEP> Figure 1 is a perspective view of the manual synchronous telescopic mechanism.<tb> <SEP> Figure 2 is a cross-sectional view of the manual synchronous telescopic mechanism.<tb> <SEP> Figure 3 is an enlarged view of part A of Figure 2.<tb> <SEP> Figure 4 is an enlarged view of part B of Figure 2.<tb> <SEP> Figure 5 is an enlarged view of part C of Figure 2.<tb> <SEP> Figure 6 is an enlarged view of part D of Figure 2.<tb> <SEP> Figure 7 is an enlarged view of part E of Figure 2.
    Detailed description of the preferred embodiments
    [0014] The present invention is further described below in connection with the drawings and embodiments:<tb> <SEP> As shown in the figure, the invention provides an embodiment of the manual synchronous telescopic mechanism, comprising an outer guide beam 1 and a seat of the reducer 2. The seat of the reducer 2 is fixed in the middle of the outer guide beam 1 by a flange. The reducer with double output axis 3 is placed on the seat of the reducer 2. The outer guide beam 1 is provided inside the first telescopic axis 4, the second telescopic axis 5, the right screw 6, the screw of left 7. The left end of the double output shaft reducer 3 is connected to a first flexible coupling 8. The first flexible coupling 8 is connected to the right screw 6. The right end of the first telescopic shaft 4 is provided with 'a right nut 9. The right nut 9 surrounds the right screw 6. The right end of the double output shaft reducer 3 is connected to a second flexible coupling 10. The second flexible coupling 10 is connected to the left screw 7. The left end of the second telescopic axis 5 is provided with a left nut 11. The left nut 11 surrounds the left screw 7. The double output shaft reducer 3 is connected to the handle 12 .
    The right nut 9 is fixed on the inner side of the right end of the first telescopic shaft 4. The right nut 9 surrounds the outer side of the right screw 6. The left nut 11 is fixed on the inner side of the left end of the second telescopic shaft 5. The left nut 11 surrounds the outer side of the left screw 7.
    The outer guide beam 1 is provided with a first linear bearing 13 and a second linear bearing 14. The first linear bearing 13 is arranged on the left side of the outer guide beam 1, the second linear bearing 14 is disposed on the right side of the outer guide beam 1. The first linear bearing 13 surrounds the outer side of the first telescopic shaft 4, the second linear bearing 14 surrounds the outer side of the second telescopic shaft 5.
    The left end of the outer guide beam 1 is connected to the first dust cover 15. The other end of the first dust cover 15 is fixed to the first telescopic shaft 4 through the seat of fixing of the sheath 17. The right end of the outer guide beam 1 is connected to the second dust cover 16. The other end of the second dust cover 16 is attached to the second telescopic shaft 5 through the sheath fixing seat.
    The first anti-dust sheath 15 and the second anti-dust sheath 16 are telescopic anti-dust sheaths.
    The first dust cover 15 is located outside the left side of the first telescopic shaft 4. The left end of the first telescopic shaft 4 extends outside the first dust cover 15. The second Dust cover 16 is located on the outside of the left side of the second telescopic shaft 5. The left end of the second telescopic shaft 5 extends outside of the second dust cover 16.
    The left end of the right screw 16 is provided with a screw rod limiting sleeve 18. The right end of the left screw 7 is provided with a screw rod limiting sleeve.
    The principle of operation is as follows: the seat of the reducer is fixed by the flange and the external guide beam. The double output shaft reducer on the reducer seat is linked with the right screw and the left screw respectively by the first flexible coupling, the second flexible coupling. The right nut is fixed on the first telescopic axis by screws. The left nut is fixed on the second telescopic axis by screws. The outer guide beam is provided with a first linear bearing and a second linear bearing. The first and second telescopic axes are respectively movable from left to right in the outer guide beam through the first linear bearing and the second linear bearing. The operator shakes the handle. The deceleration output shaft of the double output shaft rotates and synchronously rotates the right screw and the left screw by the first flexible coupling and the second flexible coupling. The right screw and the left screw cause the right nut and the left nut to move left to right, thus achieving the synchronous expansion and contraction of the first telescopic axis and the second telescopic axis.
    权利要求:
    Claims (8)
    [1]
    1. A manual synchronous telescopic mechanism includes: an outer guide beam and a seat of the reducer, the output double axis reducer being arranged on the reducer seat, the left end of the output double axis reducer being connected to a first flexible coupling, the first flexible coupling being connected to the right screw, the right end of the first telescopic axis being provided with a right nut, the right nut surrounding the right screw, the right end of the reducer double output shaft being connected to a second flexible coupling, the second flexible coupling being connected to the left screw, the left end of the second telescopic axis being provided with a left nut, the left nut surrounding the screw on the left, the double output shaft reducer being connected to the handle.
    [2]
    2. The manual synchronous telescopic mechanism according to claim 1, wherein the outer guide beam is provided with a first linear bearing and a second linear bearing, the first linear bearing being disposed on the left side of the guide beam. outer, the second linear bearing being disposed on the right side of the outer guide beam, the first linear bearing surrounding the outer side of the first telescopic axle, the second linear bearing surrounding the outer side of the second telescopic axle.
    [3]
    The manual synchronous telescopic mechanism according to claim 1, wherein the left end of the outer guide beam is connected to the first dust cover, the other end of the first dust cover being fixed to the first. telescopic shaft through the sleeve fixing seat, the right end of the outer guide beam being connected to the second dust shield, the other end of the second dust shield being attached to the second telescopic pin through the sleeve fixing seat.
    [4]
    The manual synchronous telescopic mechanism according to claim 3, wherein the first dust cover and the second dust cover are telescopic dust cover.
    [5]
    The manual synchronous telescopic mechanism according to claim 3, wherein the first dust cover is located outside the left side of the first telescopic axis, the left end of the first telescopic axis extending outside the first. dust cover, the second dust cover being located outside the left side of the second telescopic shaft, the left end of the second telescopic shaft extending outside the second dust cover.
    [6]
    6. The manual synchronous telescopic mechanism according to claim 1, wherein the seat of the reducer is fixed in the middle of the outer guide beam by a flange;
    [7]
    The manual synchronous telescopic mechanism according to claim 1, wherein the left end of the right screw is provided with a screw shank limiting sleeve, the right end of the left screw being provided with a. screw rod limiting sleeve.
    [8]
    8. The manual synchronous telescopic mechanism according to claim 1, wherein the right nut is fixed on the inner side of the right end of the first telescopic axis, the right nut surrounding the outer side of the right screw, the left nut being attached to the inner side of the left end of the second telescopic shaft, the left nut encircling the outer side of the left screw.
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    同族专利:
    公开号 | 公开日
    CN109667902A|2019-04-23|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    CN112503149B|2020-11-24|2022-03-01|中广核检测技术有限公司|Large-stroke telescopic mechanism|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    CN201910104362.8A|CN109667902A|2019-02-01|2019-02-01|Hand synchronous telescoping mechanism|
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