Power-assisted adjusting damper

Abstract

The utility model provides a power-assisted adjusting damper. The damper comprises a damping assembly, a power-assisted assembly and an adjusting assembly. The damping assembly comprises a rotating shaft, the power assisting assembly comprises a torsional spring, one end of the torsional spring is connected with the rotating shaft, and the other end of the torsional spring is connected with the adjusting assembly. The adjusting assembly comprises a fixing piece and an adjusting piece, the adjusting piece and the fixing piece are movably assembled, and the fixing piece and the adjusting piece have a first matching state and a second matching state; in the first matching state, the adjusting piece is assembled and fixed with the fixing piece under the action of the torsional spring; the other end of the torsional spring is fixed, and the rotating shaft rotates and drives the torsional spring to twist through one end of the torsional spring; in the second matching state, the adjusting piece can move to be separated from the fixing piece under the action of external force; the adjusting piece rotates and drives the torsion spring to twist through the other end of the torsion spring, and the rotating shaft is in a non-rotating state.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of damper, especially help to adjust damper. BACKGROUND

[0002] The help damper is a device that combines the functions of help and damping, and is widely used in scenes that require smooth motion control and buffering effect. Its core function is to achieve help adjustment and help support in the motion process through internal damping elements and spring assemblies.

[0003] The current help damper has a relatively complicated installation process, especially for dampers with different force value requirements, different help springs need to be replaced to achieve the required function. This diversified production method not only increases the production types, but also makes the production process difficult to standardize, which is not conducive to mass production.

[0004] In addition, for mechanisms with pre-pressure requirements, the installation process with pre-pressure is difficult. In actual operation, high-precision pre-pressure needs to be applied to the damper, which not only requires high technical level of installation equipment and operating personnel, but also easily leads to unstable installation due to improper operation. This unstable installation method not only affects the performance of the damper, but also increases the rate of defective products in the production process, further reducing production efficiency. SUMMARY

[0005] The utility model aims at solving the problem that the existing damper cannot adjust the force value, and provides a help adjustment damper, which can adjust the damper according to the requirement of different force value.

[0006] In order to solve the above technical problems, the utility model provides a help adjustment damper, the damper includes damping assembly, help assembly and adjustment assembly, the damping assembly includes rotating shaft, the help assembly includes torsional spring, one end of the torsional spring is connected with the rotating shaft, the other end is connected with the adjustment assembly;

[0007] The adjustment assembly includes a fixing part and an adjustment part, the adjustment part and the fixing part are movably assembled, the fixing part and the adjustment part have a first matching state and a second matching state;

[0008] The first matching state is that the adjustment part is assembled and fixed with the fixing part under the action of the torsional spring; the other end of the torsional spring is fixed, the rotating shaft rotates and drives the torsional spring to twist through one end of the torsional spring;

[0009] The second matching state is that the adjustment part can be separated from the fixing part under the action of external force; the adjustment part rotates and drives the torsional spring to twist through the other end of the torsional spring, and the rotating shaft is in a non-rotating state.

[0010] In a preferred embodiment, the damper comprises a housing, the housing comprising a first chamber for placing the damping assembly and a second chamber for placing the assisting assembly and the adjusting assembly.

[0011] In a preferred embodiment, the assisting assembly comprises a connecting piece, one end of the torsion spring being connected with the rotating shaft through the connecting piece; the rotating shaft extends into the second chamber and is connected with the connecting piece.

[0012] In a preferred embodiment, the connecting piece comprises a first engaging structure and a first limiting slot, the rotating shaft comprises a second engaging structure, and one end of the torsion spring is provided with a first positioning arm.

[0013] The first positioning arm is fixed in the first limiting slot, and the first engaging structure and the second engaging structure are engaged with each other.

[0014] In a preferred embodiment, the sidewall of the second chamber is provided with a guide slot, the connecting piece comprises a guide rib, and the guide rib is installed in cooperation with the guide slot; the connecting piece is distributed with a plurality of ribs in the circumferential direction.

[0015] In a preferred embodiment, the second chamber comprises an end cover, and the fixing piece is fixed on the end cover.

[0016] The end cover comprises a limiting rib, and the limiting rib is installed in cooperation with the guide slot.

[0017] In a preferred embodiment, the fixing piece comprises a third engaging structure, the adjusting piece comprises a fourth engaging structure, and the third engaging structure and the fourth engaging structure are engaged with each other.

[0018] In a preferred embodiment, the adjusting piece comprises a second limiting slot, and the other end of the torsion spring is provided with a second positioning arm, and the second positioning arm is fixed in the second limiting slot.

[0019] In a preferred embodiment, the adjusting piece comprises an adjusting hole, and the adjusting hole is arranged at two ends of the adjusting piece opposite to the second limiting slot.

[0020] The adjusting hole is matched with an auxiliary piece, the fixing piece is provided with a through hole, the through hole allows the auxiliary piece to pass through and cooperate with the adjusting hole, and an external force acts on the adjusting piece through the auxiliary piece.

[0021] In a preferred embodiment, the adjusting piece comprises a guide column, and the adjusting hole is arranged on the guide column; and the guide column is installed in the through hole.

[0022] Compared with the prior art, the technical scheme of the utility model has the following beneficial effects:

[0023] 1. By setting a torsion spring, the torsion spring provides additional assistance to the damper by working, the damper closing process works on the torsion spring, and the torsion spring assists the damper opening in the damper opening process.

[0024] 2. By setting the adjusting assembly, the force value of the torsion spring can be adjusted to meet the demand of different force values. In the open state of the damper, the torsion spring is in a natural state, and the torsion spring is twisted by the adjusting assembly to realize the adjustment of the pre-pressure of the torsion spring.

[0025] 3. The adjustment of the pre-pressure of the torsion spring can be realized after the damper is installed, and the installation process does not have pre-pressure, and the assembly process is simple.

[0026] 4. The damper can realize the adjustment of different torque requirements, the process is simple, the category is single, and the automation of mass production is high. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 It is the overall exploded view of the damper in the preferred embodiment of the utility model;

[0028] Figure 2 It is the overall assembled view of the damper in the preferred embodiment of the utility model;

[0029] Figure 3 It is the overall assembled view of the damper in the preferred embodiment of the utility model;

[0030] Figure 4 It is the state diagram of the working process of the damper assembly in the preferred embodiment of the utility model;

[0031] Figure 5 It is the schematic view of the first cavity of the shell in the preferred embodiment of the utility model;

[0032] Figure 6 It is the schematic view of the second cavity of the shell in the preferred embodiment of the utility model;

[0033] Figure 7 It is the structural schematic view of the rotating shaft in the preferred embodiment of the utility model;

[0034] Figure 8 It is the structural view of the torsion spring in the preferred embodiment of the utility model;

[0035] Figure 9 It is the schematic view of the first and second positioning arms of the torsion spring in the preferred embodiment of the utility model;

[0036] Figure 10 It is the structural view of the first engaging structure of the connecting piece in the preferred embodiment of the utility model;

[0037] Figure 11The structure diagram of the first limiting groove arranged for the connecting piece in the preferred embodiment of the utility model;

[0038] Figure 12 The structure diagram of the adjusting hole arranged for the adjusting piece in the preferred embodiment of the utility model;

[0039] Figure 13 The structure diagram of the second limiting groove arranged for the adjusting piece in the preferred embodiment of the utility model;

[0040] Figure 14 The structure diagram of the fixing piece (end cover) in the preferred embodiment of the utility model;

[0041] Figure 15 The structure diagram of the third meshing structure arranged for the fixing piece in the preferred embodiment of the utility model.

[0042] The figure mark explanation: 1, the shell; 11, the first chamber; 12, the second chamber; 121, the guide groove; 13, the communication hole; 14, the second sealing ring; 2, the damping assembly; 21, the rotating shaft; 211, the oil blocking rib; 212, the oil passing groove; 213, the second meshing structure; 22, the blade; 221, the notch; 23, the gasket; 24, the first sealing ring; 25, the gland; 3, the assisting assembly; 31, the connecting piece; 311, the first meshing structure; 312, the first limiting groove; 313, the guide rib; 314, the rib; 32, the torsion spring; 321, the first positioning arm; 322, the second positioning arm; 4, the adjusting assembly; 41, the fixing piece; 411, the third meshing structure; 412, the through hole; 42, the adjusting piece; 421, the fourth meshing structure; 422, the second limiting groove; 423, the adjusting hole; 424, the guide column body; 43, the end cover; 431, the limiting rib. DETAILED DESCRIPTION

[0043] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model; obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments; based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0044] In the description of the utility model, it needs to be explained that the terms "upper", "lower", "inner", "outer", "top / bottom end" and the like indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0045] In the description of the utility model, it needs to explain, unless another explicit provision and limitation, the term "installation", "set with", "sleeve set / interface", "connection" and so on, should do the broad sense understanding, for example "connection", can be wall-mounted connection, can also be detachable connection, or integrally connected, can be mechanical connection, can also be electrical connection, can be directly connected, also can be indirectly connected through the intermediate medium, can be two elements inside the communication, for the ordinary skilled in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to the specific circumstances.

[0046] Reference Figures 1-15 The embodiment provides a power-assisted damping adjuster, which comprises a damping assembly 2, a power-assisted assembly 3 and an adjusting assembly 4; the damping assembly 2 comprises a rotating shaft 21; the power-assisted assembly 3 comprises a torsional spring 32, one end of the torsional spring 32 is connected with the rotating shaft 21, and the other end of the torsional spring 32 is connected with the adjusting assembly 4; the adjusting assembly 4 comprises a fixing part 41 and an adjusting part 42; the adjusting part 42 is movably assembled with the fixing part 41; the fixing part 41 and the adjusting part 42 have a first matching state and a second matching state; in the first matching state, the adjusting part 42 is assembled and fixed with the fixing part 41 under the action of the torsional spring 32; the other end of the torsional spring 32 is fixed, the rotating shaft 21 rotates and drives the torsional spring 32 to twist through one end of the torsional spring 32; in the second matching state, an external force can make the adjusting part 42 move away from the fixing part 41; the adjusting part 42 rotates and drives the torsional spring 32 to twist through the other end of the torsional spring 32, and the rotating shaft 21 is in a non-rotating state.

[0047] When the fixing part 41 and the adjusting part 42 are in the first matching state, the fixing part 41 fixes the adjusting part 42, so that the other end of the torsional spring 32 is fixed, in the use process of the damping adjuster, the rotating shaft 21 rotates and drives one end of the torsional spring 32 to twist, the torsional spring 32 provides additional power for opening or closing of the damping adjuster through the work of twisting the torsional spring 32; when the fixing part 41 and the adjusting part 42 are in the second matching state, the fixing part 41 and the adjusting part 42 are separated, the adjusting part 42 is in a movable state, the rotating shaft 21 needs to be in a non-rotating state when the adjusting part 42 moves, the other end of the torsional spring 32 is twisted through the rotation of the adjusting part 42, and the pre-tightening force of the torsional spring 32 is adjusted. The pre-tightening force is an initial torque applied to the torsional spring 32 in advance, that is, the initial torque of the torsional spring 32 when the rotating shaft 21 does not rotate.

[0048] As Figure 3 The specific structure of the damping adjuster is that the damping adjuster comprises a shell 1, the shell 1 comprises a first cavity and a second cavity (for example Figures 5-6), the first chamber is used for placing the damping assembly 2, and the second chamber is used for placing the assisting assembly 3 and the adjusting assembly 4.

[0049] As shown in Figure 1 , the damping assembly 2 comprises a rotating shaft 21, a vane 22, a gasket 23, a first sealing ring 24 and a gland 25, the rotating shaft 21 comprises an oil blocking rib 211 matched with the vane 22, the vane 22 is provided with a notch 221, and the oil blocking rib 211 is arranged in the notch 221. The gasket 23 is arranged between the rotating shaft 21 and the first sealing ring 24, and the gland 25 is arranged at the opening of the first chamber to form a seal.

[0050] As shown in Figure 4 , when the damping assembly 2 works, the rotating shaft 21 rotates in the first chamber, and the relative rotation of the rotating shaft 21 and the vane 22 generates a gap to form an oil passing channel, the vane 22 passes oil in the opening process of the damper, and the vane 22 does not pass oil in the closing process of the damper. In the movement process of the damper, the rotating process of the rotating shaft 21 comprises three states; wherein, the first state is a completely closed state, the rotating angle of the rotating shaft 21 is 0°, the second state is an intermediate process state, the rotating shaft 21 is in a rotating movement process, and the third state is a completed opening state (rotated to 108°), the rotating shaft 21 is rotated to the maximum angle. The rotating shaft 21 is further provided with an oil passing groove 212, in the working process of the damper, in addition to the oil passing from the vane 22, the oil can also pass from the oil passing groove 212 of the rotating shaft 21, and the oil passing groove 212 is in the oil passing state in the opening and closing process.

[0051] The assisting assembly 3 comprises a connecting piece 31 and a torsional spring 32, one end of the torsional spring 32 is connected with the rotating shaft 21 through the connecting piece 31, and a communication hole 13 (as shown in Figures 5-6 ) is arranged between the first chamber 11 and the second chamber 12, the rotating shaft 21 extends into the second chamber 12 through the communication hole 13 and is connected with the connecting piece 31. A second sealing ring 14 is arranged between the rotating shaft 21 and the communication hole 13 to form a sealed connection.

[0052] The connecting structure of the rotating shaft 21, the connecting piece 31 and the torsional spring 32 is that the connecting piece 31 comprises a first meshing structure 311 and a first limiting groove 312 (as shown in Figures 10-11 ), the rotating shaft 21 comprises a second meshing structure 213 (as shown in Figure 7 ), one end of the torsional spring 32 is provided with a first positioning arm 321 (as shown in Figure 8 ), the first positioning arm 321 is fixed in the first limiting groove 312, and the first meshing structure 311 and the second meshing structure 213 are meshed with each other. Through the connecting structure, when the rotating shaft 21 rotates, the connecting piece 31 drives the torsional spring 32 to twist synchronously.

[0053] As shown in Figure 1The adjusting assembly 4 comprises a fixing member 41 and an adjusting member 42. The fixing member 41 is fixed with an end cover 43 used for sealing the opening of the second cavity. The side wall of the second cavity is provided with a guide groove 121 (as shown in Figure 6 ). The connecting member 31 comprises a guide rib 313 (as shown in Figure 11 ) which is installed in cooperation with the guide groove 121. The end cover 43 comprises a limiting rib 431 (as shown in Figure 15 ) which is installed in cooperation with the guide groove 121.

[0054] As shown in Figure 11 , the connecting member 31 is provided with a plurality of ribs 314 distributed in the circumferential direction for contacting the inner cavity of the second cavity 12, thereby reducing the friction with the inner wall of the inner cavity of the second cavity 12. The ribs 314 are used for adjusting the outer ring of the connecting member 31, so as to avoid the problem that the outer ring of the connecting member 31 has a large diameter and causes large friction with the inner wall of the inner cavity of the second cavity 12, or the outer ring has a small diameter and shakes left and right in the cylindrical cavity.

[0055] When the torsional spring 32 is installed, the connecting member 31 is installed in the guide groove 121 in a directional manner through the guide rib 313 arranged thereon, and the torsional spring 32 is installed into the second cavity along with the connecting member 31. The adjusting member 42 is assembled with the fixing member 41, and the fixing member 41 is installed in the guide groove 121 in a directional manner through the limiting rib 431 arranged on the end cover 43. The torsional spring 32 is installed in cooperation with the guide groove 121, the guide rib 313 and the limiting rib 431, so as to limit the initial position of the torsional spring 32, make the torque of the damper consistent, and avoid the problem of inconsistent torque.

[0056] The assembling structure of the fixing member 41 and the adjusting member 42 is that the fixing member 41 comprises a third engaging structure 411 (as shown in Figure 15 ), the adjusting member 42 comprises a fourth engaging structure 421 (as shown in Figure 12 ), the third engaging structure 411 and the fourth engaging structure 421 are engaged with each other to realize fixation. The adjusting member 42 comprises a second limiting groove 422 (as shown in Figure 13 ), the other end of the torsional spring 32 is provided with a second positioning arm 322 (as shown in Figure 9 ), and the second positioning arm 322 is fixed in the second limiting groove 422.

[0057] The movable cooperation of the fixing member 41 and the adjusting member 42 is that the adjusting member 42 comprises an adjusting hole 423 (as shown in Figure 12 ) which is arranged opposite to the second limiting groove 422 at two ends of the adjusting member 42; the adjusting hole 423 is matched with an auxiliary member, and the fixing member 41 is provided with a through hole 412 (as shown in Figure 14), the through hole 412 allows the auxiliary member to pass through and cooperates with the adjusting hole 423; an external force acts on the adjusting member 42 through the auxiliary member.

[0058] The adjusting hole 423 is an internal hexagonal adjusting hole 423, and the auxiliary member can be a hexagonal screwdriver. The adjusting member 42 includes a guide column body 424, and the adjusting hole 423 is arranged on the guide column body 424; the guide column body 424 is installed in the through hole 412.

[0059] The working principle of the force-assisted adjusting damper is as follows: during the closing process of the damper, the rotating shaft 21 drives the torsional spring 32 to twist, and work is done on the torsional spring 32; the torsional force of the torsional spring 32 is the largest in the closed state. During the opening process of the damper, the torsional spring 32 assists the opening of the damper, and the torsional force of the torsional spring 32 is the smallest when the damper is opened to the maximum angle. When the torsional spring 32 is in the open state, the torsional spring 32 does not work, and the torsional spring 32 is in the initial torque state.

[0060] When the initial torque of the torsional spring 32 is adjusted by the adjusting assembly 4, after the damper is assembled, the damper is in the open state, and the torsional spring 32 is in the natural state (non-compressed state). An auxiliary member is inserted into the adjusting hole 423, an external force acts on the auxiliary member to inwardly press the adjusting hole 423, the adjusting member 42 is compressed under the action of the external force, the torsional spring 32 is compressed to store force, the adjusting member 42 is separated from the fixing member 41, and the adjusting member 42 is in a rotatable state. During the adjusting process, the external force acts on the auxiliary member to rotate, the adjusting member 42 is driven to rotate by the adjusting hole 423, the torsional spring 32 is twisted, and the pre-tightening force of the torsional spring 32 is adjusted. The pre-tightening force is adjusted according to the number of rotations, and when the pre-tightening force of the torsional spring 32 reaches the set parameter after rotation adjustment, the inwardly pressing external force is reduced, the adjusting member 42 is returned under the action of the return force of the torsional spring 32, and the adjusting member 42 and the fixing member 41 are meshed with each other through the third meshing structure 411 and the fourth meshing structure 421 to form fixation.

[0061] The adjusting member 42 utilizes the restoring force of the torsional spring 32 itself to realize the adjustment of the blind hole without opening a hole or damaging the appearance structure, and the adjustment is simple, accurate and reliable in function.

[0062] The adjusting process can be performed after the damper is assembled, and the force value demand is adjusted, thereby simplifying the installation and increasing the flexibility of product use. For example, when the damper is rotated to a specified angle of 80°, the torsional force of the torsional spring 32 and the external force driving the rotation of the damper reach a balance, and the force assistance can be realized. The specified angle can be other angles, such as 85° / 75°, etc.

[0063] The above merely describes a preferred embodiment of the present application, and the design concept of the present application is not limited thereto, and any person skilled in the art, within the technical scope disclosed by the present application, can make non-essential changes to the present application using the concept, and such changes shall be deemed to fall within the protection scope of the present application.

Claims

1. A force-assisted, adjustable damper, characterized by: The damper comprises a damping assembly, a power assisting assembly and an adjusting assembly; the damping assembly comprises a rotating shaft, the power assisting assembly comprises a torsion spring, one end of the torsion spring is connected with the rotating shaft, and the other end of the torsion spring is connected with the adjusting assembly; The adjusting assembly comprises a fixing member and an adjusting member, the adjusting member is movably assembled with the fixing member, and the fixing member and the adjusting member have a first matching state and a second matching state; In the first matching state, the adjusting member is assembled and fixed with the fixing member under the action of the torsion spring; the other end of the torsion spring is fixed, the rotating shaft rotates and drives the torsion spring to twist through one end of the torsion spring; In the second matching state, an external force acts on the adjusting member to make the adjusting member move away from the fixing member; the adjusting member rotates and drives the torsion spring to twist through the other end of the torsion spring, and the rotating shaft is in a non-rotating state.

2. A force-assisted, adjustable damper according to claim 1, wherein: The damper comprises a shell, the shell comprises a first cavity and a second cavity, the first cavity is used for placing the damping assembly, and the second cavity is used for placing the power assisting assembly and the adjusting assembly.

3. A force-assisted adjustment damper according to claim 2, wherein: The power assisting assembly comprises a connecting member, one end of the torsion spring is connected with the rotating shaft through the connecting member, and the rotating shaft extends into the second cavity and is connected with the connecting member.

4. A force-assisted adjustment damper according to claim 3, wherein: The connecting member comprises a first meshing structure and a first limiting groove, the rotating shaft comprises a second meshing structure, and one end of the torsion spring is provided with a first positioning arm; The first positioning arm is fixed in the first limiting groove, and the first meshing structure and the second meshing structure are meshed with each other.

5. A force-assisted, adjustable damper according to claim 3, wherein: A side wall of the second cavity is provided with a guide groove, the connecting member comprises a guide rib, the guide rib is installed in cooperation with the guide groove, and the connecting member is distributed with a plurality of ribs in the circumferential direction.

6. A force-assisted adjustment damper according to claim 5, wherein: The second cavity comprises an end cover, and the fixing member is fixed on the end cover; The end cover comprises a limiting rib, and the limiting rib is installed in cooperation with the guide groove.

7. A force-assisted, adjustable damper according to claim 1, wherein: The fixing member comprises a third meshing structure, the adjusting member comprises a fourth meshing structure, and the third meshing structure and the fourth meshing structure are meshed with each other.

8. A force-assisted adjustment damper according to claim 7, wherein: The adjusting member comprises a second limiting groove, the other end of the torsion spring is provided with a second positioning arm, and the second positioning arm is fixed in the second limiting groove.

9. A force-assisted adjustment damper according to claim 8, wherein: The adjusting member comprises an adjusting hole, and the adjusting hole is arranged at two ends of the adjusting member opposite to the second limiting groove; The adjusting hole is matched with an auxiliary member, the fixing member is provided with a through hole, the through hole allows the auxiliary member to pass through and cooperate with the adjusting hole, and an external force moves the adjusting member through the auxiliary member.

10. A force-assisted adjustment damper according to claim 9, wherein: The adjusting member comprises a guide column, and the adjusting hole is arranged on the guide column; and the guide column is installed in the through hole.

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