Quick-release shock absorber mounting structure for a jacking machine

By using a quick-release shock absorber installation structure and leveraging the linkage between the buffer pad and the shock absorber spring, the problem of bridge displacement after jacking was solved, achieving stable jacking and rapid disassembly of the bridge, thus improving the accuracy and efficiency of bridge installation.

CN117185179BActive Publication Date: 2026-07-24CCCC SECOND HIGHWAY ENG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CCCC SECOND HIGHWAY ENG CO LTD
Filing Date
2023-08-18
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

The existing bridge jacking device does not have a shock absorption device after the jacking is completed, which may cause the bridge to shift and affect subsequent installation work.

Method used

A quick-release shock absorber installation structure was designed, including a lifting mechanism, a fixing component, a driving component, an adjusting component, and a shock-absorbing component. Through the linkage of the buffer pad and the shock-absorbing spring, the structure achieves dual longitudinal and lateral force relief to prevent bridge vibration and displacement. The fixing component is quickly disassembled through the meshing of the linkage cylinder and gears.

Benefits of technology

It effectively reduces vibration during bridge jacking, prevents bridge displacement, improves the accuracy and efficiency of bridge installation, and has a simple structure and low cost.

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Abstract

The application provides a quick-release type shock absorber mounting structure for a jacking machine, and belongs to the technical field of building construction. The jacking machine is fixedly provided with a connecting box at one end. A fixing assembly is slidably attached to the inner wall of the connecting box, and is used for fixing the jacking machine and a shock absorbing assembly. A driving assembly is movably arranged at one end of the connecting box, and is used for driving the fixing assembly to be jacked up to realize quick release. An adjusting assembly is arranged below the driving assembly, and is used for adjusting the driving assembly. The shock absorbing assembly is arranged at one end of the driving assembly, and is used for cooperating with the jacking machine to absorb the shock of the bridge. The shock absorbing assembly is arranged to improve the shock absorbing effect on the bridge. The adjusting assembly is arranged to realize the quick dismounting effect of the fixing assembly by using the downward force of the bridge when it falls back.
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Description

Technical Field

[0001] This invention relates to the field of building construction technology, and in particular to a quick-release shock absorber installation structure for a jacking machine. Background Technology

[0002] A lifting device is a small, lightweight lifting device that uses a rigid lifting component as its working device to lift heavy objects within its stroke via a top support or bottom claw. There are two types: mechanical and hydraulic. Lifting devices are mainly used in factories, mines, and transportation sectors for vehicle repair and other lifting and support work. In terms of principle, hydraulic lifting devices are based on Pascal's principle, which states that the pressure is uniform throughout a fluid. In a balanced system, a smaller piston applies less pressure, while a larger piston applies more pressure, thus maintaining the fluid's stillness. Therefore, through the transmission of fluid pressure, different pressures can be obtained at different ends, achieving a transformation.

[0003] Bridge jacking refers to a new type of bridge maintenance technology that uses hydraulic or other jacking devices to raise the main load-bearing structure of a bridge without changing its original shape. This allows for bridge maintenance while ensuring that the bridge remains passable. However, existing bridge jacking devices do not perform relevant shock absorption treatments when the bridge is lowered after jacking, which may cause the bridge to shift and affect subsequent bridge installation work. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a quick-release shock absorber installation structure for a jacking machine to solve the problem that existing bridge jacking devices do not have shock absorbers, which may cause the bridge to shift after the bridge jacking is completed, affecting the bridge installation.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0006] A quick-release shock absorber installation structure for a jacking machine includes a jacking mechanism: a connecting box is fixedly installed at one end of the jacking mechanism; it also includes a fixing component, which slides against the inner wall of the connecting box and is used to fix the jacking mechanism and the shock absorber component; a driving component, which is movably disposed at one end of the connecting box and is used to drive the fixing component to lift up for quick release; an adjusting component, which is disposed below the driving component and is used to adjust the driving component; and a shock absorber component, which is disposed at one end of the driving component and is used to cooperate with the jacking mechanism to absorb vibrations on the bridge.

[0007] Preferably, the fixing component includes a fixing crank, one end of which has an outer surface that slides against the inner wall of the connecting box. The number of fixing cranks is set to two sets, and a compression spring is provided between the two sets of fixing cranks. The two sets of fixing cranks are elastically connected by the compression spring.

[0008] Preferably, a Y-shaped connecting rod is rotatably provided on the inner wall of the fixed crank, one end of the Y-shaped connecting rod is rotatably connected to a fixed rod, one end of the fixed rod is provided with a collar, and the bottom end of the collar is provided with a push rod.

[0009] Preferably, the drive assembly includes a protective shell, a rubber gasket ring is provided at the top of the protective shell, a linkage cylinder is pressed and fitted on the upper part of the rubber gasket ring, a circular cavity is provided at one end edge of the linkage cylinder, and the outer surface of the linkage cylinder is slidably fitted with the inner wall of the collar.

[0010] Preferably, a rack is provided at the bottom end of the outer surface of the linkage cylinder, a limit rod is slidably attached to the bottom outer surface of the rack, the limit rod is fixedly installed on the inner wall of the protective shell, and a flat gear is meshed with one end of the rack, the flat gear is rotatably installed on the inner wall of the protective shell.

[0011] Preferably, one end of the spur gear is meshed with a rack two, the bottom end of the rack two is provided with a telescopic rod one, the telescopic rod one is fixedly installed at the bottom end of the inner wall of the protective shell, one end of the rack two is equipped with an adjustment component, and one end of the protective shell is provided with an adjustment port.

[0012] Preferably, the linkage cylinder and rack two are L-shaped, and the adjustment port and one end of rack two are installed at the same horizontal level.

[0013] Preferably, the adjusting assembly includes an installation cylinder, the inner wall of which is threaded with a screw, the top end of which is pressed against the bottom end of a push rod, and an adjusting turntable is provided at the bottom end of the screw.

[0014] Preferably, the shock absorption assembly includes a mounting shell, a buffer pad is provided on the upper part of the mounting shell, a mounting column is installed at the bottom end of the buffer pad, and a support rod is rotatably provided at the bottom end of the mounting column.

[0015] Preferably, one end of the support rod is provided with a telescopic rod two, one end of which is fixedly mounted on the inner wall of the mounting shell. A shock-absorbing spring is sleeved on the outer surface of the telescopic rod two, and one end of the shock-absorbing spring is elastically connected to the inner wall of the mounting shell. A sleeve rod is provided on one side of the support rod, and the outer surface of the sleeve rod slides against the inner wall of the linkage cylinder.

[0016] Compared with the prior art, the present invention has at least the following beneficial effects:

[0017] In the above scheme, by setting up shock-absorbing components, the bridge is simultaneously damped during the lifting operation of the jacking mechanism, in coordination with the operating stroke of the jacking mechanism. This prevents the bridge from shifting due to vibration during the operation of the jacking mechanism, which would affect the bridge installation work after the lifting is completed. By setting up buffer pads and shock-absorbing springs in conjunction, the vibration generated by the bridge falling back is dissipated both longitudinally and laterally. The shock-absorbing springs are set up laterally to eliminate the vibration generated by the bridge falling back, preventing the vibration generated by the bridge falling back from directly acting on the buffer pads and causing damage, while improving the shock absorption effect on the bridge.

[0018] By setting a fixed component, the lifting mechanism and the shock absorption component are fixedly connected. Two sets of fixed cranks are elastically connected by a compression spring, which automatically clamps the connecting box when subjected to longitudinal force. At the same time, the fixed component and the shock absorption component are linked by a linkage cylinder. The downward force of the support rod during shock absorption drives the drive component to lift the fixed component, allowing the fixed component to slide up and down inside the connecting box and preventing it from getting stuck. In addition, by setting an adjustment component, the operator can rotate the adjustment dial to adjust the distance between the screw and the fixed component. Combined with the downward force of the support rod during shock absorption, the fixed component is pushed out of the connecting box, achieving a quick disassembly effect. The structure is simple and the cost is low. Attached Figure Description

[0019] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments of the present disclosure and, together with the specification, further serve to explain the principles of the present disclosure and enable those skilled in the art to implement and use the present disclosure.

[0020] Figure 1 A three-dimensional structural diagram of the installation structure for quick-release shock absorbers used in jacking machines;

[0021] Figure 2 A three-dimensional cross-sectional schematic diagram of the installation structure for quick-release shock absorbers used in jacking machines;

[0022] Figure 3 This is a schematic diagram of the fixed component structure;

[0023] Figure 4 This is a schematic diagram of the driver component structure;

[0024] Figure 5 This is a schematic diagram of the vibration damping component structure;

[0025] Figure 6 This is a schematic diagram of the linkage structure of the fixed component, the driving component, and the adjusting component;

[0026] Figure 7 for Figure 6 Enlarged diagram of A in the middle;

[0027] Figure 8 for Figure 3 Enlarged diagram of B in the diagram.

[0028] [Figure Labels]

[0029] 1. Lifting mechanism; 2. Connecting box; 3. Fixing assembly; 31. Fixing crank; 32. Compression spring; 33. Y-shaped connecting rod; 34. Fixing rod; 35. Collar; 36. Push rod; 4. Drive assembly; 41. Protective shell; 42. Rubber gasket ring; 43. Linkage cylinder; 44. Rack one; 45. Limiting rod; 46. Flat gear; 47. Rack two; 48. Telescopic rod one; 49. Adjustment port; 5. Adjustment assembly; 51. Mounting cylinder; 52. Screw; 53. Adjusting turntable; 6. Shock absorption assembly; 61. Mounting shell; 62. Buffer pad; 63. Mounting column; 64. Support rod; 65. Telescopic rod two; 66. Shock absorption spring; 67. Sleeve rod.

[0030] As shown in the figure, specific structures and devices are labeled in the figure to clearly illustrate the structure of the embodiments of the present invention. However, this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. Those skilled in the art can adjust or modify these devices and environments according to specific needs, and such adjustments or modifications are still included in the scope of the appended claims. Detailed Implementation

[0031] The following is a detailed description of the quick-release shock absorber installation structure for a jacking machine provided by the present invention, with reference to the accompanying drawings and specific embodiments. It should be noted that, to make the embodiments more detailed, the following embodiments are the best and preferred embodiments; those skilled in the art can also use other alternative methods to implement some known technologies; and the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit the present invention.

[0032] It should be noted that the use of terms such as "an embodiment," "an embodiment," "an exemplary embodiment," and "some embodiments" in the specification indicates that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the art.

[0033] Generally, terms can be understood at least partly from their use in context. For example, depending at least partly on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in a singular sense, or a combination of features, structures, or characteristics in a plural sense. Additionally, the term "based on" can be understood not necessarily to convey an exclusive set of factors, but rather, alternatively, depending at least partly on the context, to allow for the presence of other factors that are not necessarily explicitly described.

[0034] It is understood that the meanings of “on”, “above” and “above” in this disclosure should be interpreted in the broadest sense, such that “on” means not only “directly on” something, but also includes something with an intermediary feature or layer, and that “above” or “above” means not only “on” something, but also includes something “above” or “above” without an intermediary feature or layer.

[0035] Furthermore, spatially related terms such as “below,” “under,” “lower,” “above,” and “upper” are used herein for convenience to describe the relationship of one element or feature to one or more other elements or features, as illustrated in the accompanying drawings. Spatially related terms are intended to cover different orientations in the use or operation of the device other than those depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially related descriptive terms used herein can be interpreted similarly.

[0036] like Figure 1 and Figure 2 As shown, an embodiment of the present invention provides a quick-release shock absorber mounting structure for a lifting machine, including a lifting mechanism 1, with a connecting box 2 fixedly mounted at one end of the lifting mechanism 1; it also includes a fixing component 3, which slides against the inner wall of the connecting box 2 and is used to fix the lifting mechanism 1 and the shock absorber component 6; a driving component 4, which is movably disposed at one end of the connecting box 2 and is used to drive the fixing component 3 to lift up to achieve quick release; and an adjusting component 5, which is disposed below the driving component 4 and is used to adjust the driving component 4. The shock absorption component 6 is located at one end of the drive component 4. The shock absorption component 6 is used to work with the lifting mechanism 1 to reduce the vibration of the bridge. By setting the buffer pad 62 and the shock absorption spring 66 in linkage, the vibration generated by the bridge falling back is subjected to dual longitudinal and lateral force relief. The shock absorption spring 66 is set laterally to eliminate the vibration generated by the bridge falling back, thereby improving the shock absorption effect of the bridge. The fixing component 3 is set to slide up and down in the connecting box 2 to prevent the fixing component 3 from getting stuck in the connecting box 2. The adjusting component 5 is set to achieve the effect of quick disassembly of the fixing component 3.

[0037] like Figure 5 As shown, the shock absorption assembly 6 includes a mounting shell 61, a buffer pad 62 on the upper part of the mounting shell 61, a mounting column 63 at the bottom of the buffer pad 62, a support rod 64 rotatably mounted at the bottom of the mounting column 63, a telescopic rod 65 at one end of the support rod 64, one end of the telescopic rod 65 fixedly mounted on the inner wall of the mounting shell 61, and a shock-absorbing spring 66 sleeved on the outer surface of the telescopic rod 65. One end of the shock-absorbing spring 66 is elastically connected to the inner wall of the mounting shell 61. A sleeve 67 is provided on one side of the support rod 64, and the outer surface of the sleeve 67 slides against the inner wall of the linkage cylinder 43. In real-time use, when the lifting mechanism 1 pushes the bridge back down... The bridge-fitting buffer pad 62 moves downward. Under the downward force of the bridge, the buffer pad 62 drives the support rod 64 to move downward synchronously through the mounting column 63. At the same time, the support rod 64 moves downward and squeezes the shock-absorbing spring 66 through the telescopic rod 65. The downward force of the bridge is eliminated by the lateral movement of the shock-absorbing spring 66, avoiding the vibration generated by the bridge falling back directly acting on the buffer pad 62 and causing damage. By setting the linkage between the buffer pad 62 and the shock-absorbing spring 66, the downward force generated by the bridge falling back is subjected to dual longitudinal and lateral force relief, which improves the shock absorption effect of the bridge.

[0038] like Figure 4As shown, the drive assembly 4 includes a protective shell 41, a rubber gasket 42 at the top of the protective shell 41, a linkage cylinder 43 pressed and fitted onto the upper part of the rubber gasket 42, a circular cavity at one edge of the linkage cylinder 43, the outer surface of the linkage cylinder 43 slidingly fitting against the inner wall of the collar 35, a rack 44 at the bottom of the outer surface of the linkage cylinder 43, a limit rod 45 slidingly fitting against the bottom outer surface of the rack 44, the limit rod 45 being fixedly installed on the inner wall of the protective shell 41, a spur gear 46 meshing with one end of the rack 44, the spur gear 46 rotatably mounted on the inner wall of the protective shell 41, a rack 47 meshing with one end of the spur gear 46, a telescopic rod 48 at the bottom of the rack 47, the telescopic rod 48 being fixedly installed on the bottom of the inner wall of the protective shell 41, and an adjustment assembly 5 installed at one end of the rack 47. One end of the shell 41 is provided with an adjustment port 49. In real-time use, when the support rod 64 moves downward synchronously, the support rod 64 drives the linkage cylinder 43 to move downward through the sleeve rod 67. The linkage cylinder 43 drives the spur gear 46 to mesh and rotate through the rack 44 at the bottom. At the same time, the spur gear 46 drives the rack 47 to move upward. The rack 47 drives the adjustment component 5 at one end to lift the fixed component 3, so that the fixed component 3 slides in the connecting box 2. By setting the linkage between the sleeve rod 67 and the support rod 64, the downward force generated by the bridge falling back is used. Through the meshing linkage of the rack 44, the spur gear 46 and the rack 47, the adjustment component 5 is driven to lift the fixed component 3, so that the fixed component 3 slides in the connecting box 2, and the fixed component 3 is prevented from getting stuck in the connecting box 2.

[0039] like Figure 6 and Figure 7As shown, the adjusting assembly 5 includes an installation cylinder 51, with a screw 52 threadedly connected to the inner wall of the installation cylinder 51. The top end of the screw 52 is pressed against the bottom end of the push rod 36. An adjusting turntable 53 is provided at the bottom end of the screw 52. When it is necessary to disassemble the shock-absorbing assembly 6, the operator can rotate the adjusting turntable 53 through the adjusting port 49, causing the screw 52 to rotate threadedly on the inner wall of the installation cylinder 51. As the screw 52 rotates, the installation cylinder 51 rotates and extends, reducing the distance between the screw 52 and the push rod 36. At this time, when the support rod 64 moves downward synchronously, the support rod 64 drives the linkage cylinder 43 to move downward through the sleeve rod 67. The linkage cylinder 43 is connected by a rack 44 at its bottom end. The spur gear 46 is driven to mesh and rotate. While the spur gear 46 is meshing and rotating, it drives the rack 47 to move upward. The rack 47 drives the screw 52 to lift the push rod 36. As the distance between the screw 52 and the push rod 36 decreases, the screw 52, ​​under the upward action of the rack 47, completely pushes the fixing component 3 out of the connecting box 2. The operator can then remove the lifting mechanism 1 and the connecting box 2 to achieve quick disassembly of the lifting mechanism 1 and the fixing component 3. By setting the adjustment component 5 and rotating the adjustment turntable 53, the distance between the screw 52 and the push rod 36 can be adjusted, so that the fixing component 3 can be directly pushed out of the connecting box 2 under the downward force generated by the bridge falling back, thus achieving the disassembly effect.

[0040] like Figure 3 and Figure 8 As shown, the fixing component 3 includes a fixing crank 31. The outer surface of one end of the fixing crank 31 slides against the inner wall of the connecting box 2. The number of fixing cranks 31 is set to two sets. A compression spring 32 is set between the two sets of fixing cranks 31. The two sets of fixing cranks 31 are elastically connected by the compression spring 32. A Y-shaped connecting rod 33 is rotatably set on the inner wall of the fixing crank 31. A fixing rod 34 is rotatably connected to one end of the Y-shaped connecting rod 33. A collar 35 is set at one end of the fixing rod 34. A push rod 36 is set at the bottom end of the collar 35. By setting two sets of fixing cranks 31 and elastically connecting them by the compression spring 32, the fixing rod 34 can automatically clamp the connecting box 2 when subjected to longitudinal force, ensuring the connection effect. (The Y-shaped connecting rod is composed of three sets of connecting rods. All three sets of connecting rods are directly rotatably connected. When the connecting rod connected to the end of the fixing rod 34 is pulled, the connecting rods rotatably connected on both sides will drive the two sets of fixing cranks 31 to move closer to the middle.)

[0041] The technical solution provided by this invention, by setting up a shock-absorbing component, coordinates with the operation stroke of the lifting mechanism to simultaneously dampen the bridge during the lifting operation, preventing the bridge from shifting due to vibration during the lifting operation, which would affect the bridge installation work after the lifting is completed. By setting up a buffer pad and shock-absorbing spring in linkage, the vibration generated by the bridge falling back is doubly unloaded longitudinally and laterally. The shock-absorbing spring is set laterally to eliminate the vibration generated by the bridge falling back, preventing the vibration generated by the bridge falling back from directly acting on the buffer pad and causing damage, while improving the shock absorption effect on the bridge.

[0042] By setting a fixed component, the lifting mechanism and the shock absorption component are fixedly connected. Two sets of fixed cranks are elastically connected by a compression spring, which automatically clamps the connecting box when subjected to longitudinal force. At the same time, the fixed component and the shock absorption component are linked by a linkage cylinder. The downward force of the support rod during shock absorption drives the drive component to lift the fixed component, allowing the fixed component to slide up and down inside the connecting box and preventing it from getting stuck. At the same time, by setting an adjustment component, the operator can rotate the adjustment dial to adjust the distance between the screw and the fixed component. Combined with the downward force of the support rod during shock absorption, the fixed component is pushed out of the connecting box, achieving a quick disassembly of the fixed component.

[0043] This invention encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this invention. To provide the public with a thorough understanding of this invention, specific details are described in detail in the following preferred embodiments; however, those skilled in the art will fully understand the invention even without these details. Furthermore, to avoid unnecessary misunderstanding of the essence of this invention, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0044] Those skilled in the art will understand that all or part of the steps in the methods of the above embodiments can be implemented by a program instructing related hardware. The program can be stored in a computer-readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc.

[0045] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A quick-release shock absorber mounting structure for a jacking machine, characterized in that, Includes a lifting mechanism: a connecting box is fixedly installed at one end of the lifting mechanism; It also includes a fixing component, which slides against the inner wall of the connecting box and is used to fix the lifting mechanism and the shock absorption component. A driving component is movably disposed at one end of the connecting box, and the driving component is used to drive the fixing component to lift up to achieve quick release; An adjustment component is disposed below the drive component and is used to adjust the drive component. A shock-absorbing component is disposed at one end of the drive component and is used to work with the lifting mechanism to reduce the vibration of the bridge. The fixing component includes a fixing crank, one end of which has an outer surface that slides against the inner wall of the connecting box. The number of fixing cranks is set to two sets, and a compression spring is provided between the two sets of fixing cranks. The two sets of fixing cranks are elastically connected by the compression spring. The inner wall of the fixed crank is rotatably provided with a Y-shaped connecting rod, one end of which is rotatably connected to a fixed rod, one end of which is provided with a collar, and the bottom end of the collar is provided with a push rod; The drive assembly includes a protective shell, a rubber gasket ring is provided at the top of the protective shell, a linkage cylinder is pressed and attached to the upper part of the rubber gasket ring, a circular cavity is provided at one end edge of the linkage cylinder, and the outer surface of the linkage cylinder slides and attaches to the inner wall of the collar. A rack is provided at the bottom end of the outer surface of the linkage cylinder. A limit rod slides against the bottom outer surface of the rack and the limit rod is fixedly installed on the inner wall of the protective shell. A flat gear is meshed with one end of the rack and the flat gear is rotatably installed on the inner wall of the protective shell. One end of the spur gear is meshed with a rack two, and a telescopic rod one is provided at the bottom end of the rack two. The telescopic rod one is fixedly installed at the bottom end of the inner wall of the protective shell. An adjustment component is installed at one end of the rack two, and an adjustment port is provided through one end of the protective shell. The shock absorption assembly includes a mounting shell, a buffer pad is provided on the upper part of the mounting shell, a mounting column is installed at the bottom end of the buffer pad, and a support rod is rotatably provided at the bottom end of the mounting column; One end of the support rod is provided with a telescopic rod II. One end of the telescopic rod II is fixedly installed on the inner wall of the mounting shell. A shock-absorbing spring is sleeved on the outer surface of the telescopic rod II. One end of the shock-absorbing spring is elastically connected to the inner wall of the mounting shell. A sleeve rod is provided on one side of the support rod. The outer surface of the sleeve rod slides against the inner wall of the linkage cylinder.

2. The quick-release shock absorber installation structure for a jacking machine according to claim 1, characterized in that, The linkage cylinder and rack two are L-shaped, and the adjustment port and one end of rack two are installed at the same horizontal level.

3. The quick-release shock absorber installation structure for a jacking machine according to claim 2, characterized in that, The adjustment assembly includes a mounting cylinder, with a screw threadedly connected to the inner wall of the mounting cylinder. The top end of the screw is pressed against the bottom end of the push rod, and an adjustment turntable is provided at the bottom end of the screw.