Piston and hydraulic damper

Abstract

The utility model discloses a piston and a hydraulic damper, and relates to the technical field of hydraulic dampers. The damping hole and the containing hole are formed in the piston base body; each damping assembly comprises a non-return piece, a damping plug and an elastic piece, the non-return pieces are connected with the piston base body, and the damping plugs and the elastic pieces are movably located in the containing holes; one end of the elastic piece makes contact with one end of the damping plug, the other end of the elastic piece makes contact with the interior of the piston base body, one end of the damping plug and the non-return piece are oppositely arranged, the other end of the damping plug and the interior of the piston base body are oppositely arranged, and the non-return piece is provided with a fluid channel. The fluid channel, the containing hole and the damping hole are sequentially communicated. The damping device has the technical effect that the damping force of the damping device is convenient to change along with the change of a load.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic dampers, and particularly relates to a piston and a hydraulic damper. Background Art

[0002] A hydraulic damper is a device that realizes smooth and slow mechanical movement through the resistance of a liquid medium, and is widely used in the field of photovoltaic power generation.

[0003] The piston is an important part of the hydraulic damper, but the damping force of the related piston is constant and difficult to change with the change of the load. Summary of the Utility Model

[0004] Aiming at the above technical problems, the utility model provides a piston and a hydraulic damper, and its damping force is convenient to change with the change of the load.

[0005] To solve the above problems, the technical solution provided by the utility model is as follows:

[0006] A piston, comprising:

[0007] A piston base body;

[0008] A damping hole and a receiving hole both arranged on the piston base body;

[0009] A plurality of damping components, each damping component comprising a check member, a damping plug and an elastic member, the check member being connected to the piston base body, and the damping plug and the elastic member both being movably located in the receiving hole; one end of the elastic member contacts one end of the damping plug, the other end of the elastic member contacts the inside of the piston base body, one end of the damping plug is arranged opposite to the check member, the other end of the damping plug is arranged opposite to the inside of the piston base body, and the check member is provided with a fluid passage;

[0010] Wherein, the fluid passage, the receiving hole and the damping hole are communicated in sequence.

[0011] Optionally, the damping plug comprises:

[0012] A plug body;

[0013] A stepped portion connected to one end of the plug body;

[0014] Wherein, one end of the elastic member contacts the stepped portion, the stepped portion is arranged opposite to the check member, and the other end of the plug body is arranged opposite to the inside of the piston base body.

[0015] Optionally, it further comprises:

[0016] A conical portion located at the other end of the plug body;

[0017] A conical hole provided in the piston body, the conical hole communicating with the accommodation hole and the damping hole;

[0018] Wherein, the conical part and the conical hole are arranged opposite to each other.

[0019] Optionally, the damping assembly further includes a hexagonal counterbore provided in the check member, the hexagonal counterbore communicating with the fluid passage; the check member includes a check nut, and the check nut is threadedly connected to the piston body.

[0020] Optionally, it further includes a piston rod mounting hole provided in the piston body.

[0021] Optionally, it further includes:

[0022] An anti-wear ring mounting hole provided outside the piston body;

[0023] An anti-wear ring at least partially located in the anti-wear ring mounting hole.

[0024] Optionally, it further includes:

[0025] A sealing ring mounting hole provided outside the piston body;

[0026] A sealing ring at least partially located in the sealing ring mounting hole.

[0027] A hydraulic damper includes a piston.

[0028] Optionally, the number of the pistons is one or two. When the number of the pistons is two, the ends of the two pistons having the check members are in contact with each other.

[0029] Adopting the technical solution provided by the present utility model, compared with the prior art, it has the following beneficial effects: During operation, the liquid medium flows through the fluid passage, the accommodation hole and the damping hole in sequence. As the load pressure increases, the damping plug moves towards the direction close to the damping hole, and the elastic member is compressed, so that the gap between the damping plug and the damping hole becomes smaller, thereby increasing the damping force; as the load pressure decreases, the damping plug moves away from the damping hole, and the elastic member rebounds, so that the gap between the damping plug and the damping hole becomes larger, thereby decreasing the damping force; In summary, the damping force of the piston in this application is easy to change with the change of the load. Description of the Drawings

[0030] Figure 1 One of the structural schematic diagrams of a piston proposed by an embodiment of the present utility model;

[0031] Figure 2 Two of the structural schematic diagrams of a piston proposed by an embodiment of the present utility model;

[0032] Figure 3One of the structural schematic diagrams of the check member proposed by the embodiment of the present utility model;

[0033] Figure 4 Another structural schematic diagram of the check member proposed by the embodiment of the present utility model;

[0034] Figure 5 Partial structural schematic diagram of a hydraulic damper proposed by the embodiment of the present utility model;

[0035] In the figure: 1. Piston base; 11. Damping hole; 12. Accommodating hole; 13. Tapered hole; 14. Piston rod mounting hole; 15. Anti-wear ring mounting hole; 16. Sealing ring mounting hole; 2. Damping assembly; 21. Check member; 211. Fluid passage; 212. Hexagonal counterbore; 22. Damping plug; 221. Plug body; 222. Step portion; 223. Tapered portion; 23. Elastic member. Detailed implementation manners

[0036] To further understand the content of the present utility model, the present utility model will be described in detail in combination with the accompanying drawings and embodiments.

[0037] The present application will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the relevant utility model and do not limit the utility model. Additionally, it should be noted that for the sake of description, only the parts related to the utility model are shown in the drawings. The terms "first", "second", etc. used in the present utility model are set for the convenience of describing the technical solution of the present utility model and have no specific limiting effect. They are all general references and do not constitute a limiting effect on the technical solution of the present utility model. It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. Unless otherwise clearly specified and limited, the terms "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. Multiple technical solutions in the same embodiment, as well as multiple technical solutions in different embodiments, can be arranged and combined to form new technical solutions without contradiction or conflict, and all are within the scope of protection required by the present utility model.

[0038] Embodiment 1

[0039] Combined with the attached Figures 1-5 , this embodiment provides a piston, including:

[0040] Piston body 1;

[0041] Damping holes 11 and receiving holes 12 both provided in the piston body 1;

[0042] A plurality of damping components 2, the damping component 2 includes a check member 21, a damping plug 22 and an elastic member 23, the check member 21 is connected to the piston base body 1, and both the damping plug 22 and the elastic member 23 are movably located in the receiving hole 12; one end of the elastic member 23 contacts one end of the damping plug 22, the other end of the elastic member 23 contacts the inside of the piston base body 1, one end of the damping plug 22 is disposed opposite to the check member 21, the other end of the damping plug 22 is disposed opposite to the inside of the piston base body 1, and the check member 21 is provided with a fluid passage 211;

[0043] Wherein, the fluid passage 211, the receiving hole 12 and the damping hole 11 are communicated in sequence.

[0044] Specifically, during operation, the liquid medium flows through the fluid passage 211, the receiving hole 12 and the damping hole 11 in sequence. As the load pressure increases, the damping plug 22 moves towards the direction close to the damping hole 11, and the elastic member 23 is compressed, so that the gap between the damping plug 22 and the damping hole 11 becomes smaller, thereby increasing the damping force; as the load pressure decreases, the damping plug 22 moves away from the damping hole 11, and the elastic member 23 rebounds, so that the gap between the damping plug 22 and the damping hole 11 becomes larger, thereby decreasing the damping force; in summary, the damping force of the piston in the present application is convenient to change with the change of the load;

[0045] The number of the damping components 2 is not limited, and can be one, two, etc., preferably two, and it is only necessary to ensure that the number of the damping components 2 is equal to the number of the damping holes 11 and the receiving holes 12; the check member 21 is used to prevent the damping plug 22 and the receiving hole 12 from separating from each other; the material of the elastic member 23 can be spring steel, etc.

[0046] Further, as Figure 1 , the damping plug 22 includes:

[0047] A plug body 221;

[0048] A step portion 222 connected to one end of the plug body 221;

[0049] Wherein, one end of the elastic member 23 contacts the step portion 222, the step portion 222 is disposed opposite to the check member 21, and the other end of the plug body 221 is disposed opposite to the inside of the piston base body 1.

[0050] Specifically, the plug body 221 is used to carry the step portion 222; the step portion 222 is used to carry the elastic member 23.

[0051] Further, as Figure 1 , it further includes:

[0052] A conical portion 223 located at the other end of the plug body 221;

[0053] The conical hole 13 is arranged in the piston base body 1, and the conical hole 13 communicates with the accommodation hole 12 and the damping hole 11;

[0054] Wherein, the conical part 223 and the conical hole 13 are arranged oppositely.

[0055] Specifically, the conical part 223 and the conical hole 13 cooperate to facilitate changing the magnitude of the damping force.

[0056] Furthermore, as Figures 3-4 , the damping assembly 2 further includes a hexagonal counterbore 212 arranged on the check member 21, and the hexagonal counterbore 212 communicates with the fluid passage 211; the check member 21 includes a check nut, and the check nut is threadedly connected to the piston base body 1.

[0057] Specifically, the hexagonal counterbore 212 is both used to cooperate with a hexagonal wrench, so as to facilitate the disassembly and assembly of the check member 21 by using the hexagonal wrench, and the hexagonal counterbore 212 is also used for the liquid medium to flow through.

[0058] Furthermore, as Figures 1-2 , it further includes a piston rod mounting hole 14 arranged in the piston base body 1.

[0059] Specifically, the piston rod mounting hole 14 is used to mount the piston rod.

[0060] Furthermore, as Figures 1-2 , it further includes:

[0061] An anti-wear ring mounting hole 15 arranged outside the piston base body 1;

[0062] An anti-wear ring at least partially located in the anti-wear ring mounting hole 15.

[0063] Specifically, the anti-wear ring is used to reduce the wear of the piston base body 1.

[0064] Furthermore, as Figures 1-2 , it further includes:

[0065] A seal ring mounting hole 16 arranged outside the piston base body 1;

[0066] A seal ring at least partially located in the seal ring mounting hole 16.

[0067] Specifically, the seal ring is used to increase the sealing performance. The number of the seal rings is preferably two, and the two seal rings are respectively located on both sides of the anti-wear ring. The material of the seal ring can be silicone rubber, fluororubber, etc.

[0068] This embodiment provides a hydraulic damper, including a piston in this embodiment.

[0069] Furthermore, the number of the pistons is one or two. When the number of the pistons is two, the ends of the two pistons with the check members 21 are in contact with each other.

[0070] Specifically, the piston of the present application can be used individually or in combination of two. When used in combination of two, it is convenient for the liquid medium to have a better damping force adjustment effect in both directions.

[0071] The above schematically describes the present utility model and its implementation manners. This description is not restrictive. What is shown in the drawings is only one of the implementation manners of the present utility model, and the actual structure is not limited thereto. Therefore, if those of ordinary skill in the art are inspired by it and, without departing from the purpose of the creation of the present utility model, design structurally similar ways and embodiments to this technical solution without creative efforts, they shall fall within the protection scope of the present utility model.

Claims

1. A piston, characterized in that: include: Piston base; The damping hole and the receiving hole are both arranged on the piston base; A plurality of damping assemblies, wherein the damping assemblies include a check member, a damping plug and an elastic member, wherein the check member is connected to the piston base, and the damping plug and the elastic member are both movably located in the accommodating hole; one end of the elastic member contacts one end of the damping plug, and the other end of the elastic member contacts the inside of the piston base; one end of the damping plug is arranged opposite to the check member, and the other end of the damping plug is arranged opposite to the inside of the piston base, and the check member is provided with a fluid channel; Wherein, the fluid channel, the accommodating hole and the damping hole are connected in sequence.

2. A piston according to claim 1, characterized in that: The damping plug comprises: Plug body; a step portion connected to one end of the plug body; Among them, one end of the elastic member is in contact with the step portion, the step portion and the check member are arranged opposite to each other, and the other end of the plug body is arranged opposite to the inside of the piston base.

3. A piston according to claim 2, characterized in that: Also includes: a tapered portion at the other end of the plug body; A tapered hole provided in the piston base, the tapered hole communicating with the accommodating hole and the damping hole; Wherein, the tapered portion and the tapered hole are arranged opposite to each other.

4. A piston according to any one of claims 1 to 3, characterized in that: The damping assembly further comprises a hexagonal counterbore provided on the check member, wherein the hexagonal counterbore is communicated with the fluid channel; the check member comprises a check nut, and the check nut is threadedly connected with the piston base.

5. A piston according to any one of claims 1 to 3, characterized in that: It also includes a piston rod mounting hole arranged in the piston base.

6. A piston according to any one of claims 1 to 3, characterized in that: Also includes: An anti-wear ring mounting hole provided outside the piston base; An anti-wear ring is at least partially located in the anti-wear ring mounting hole.

7. A piston according to any one of claims 1 to 3, characterized in that: Also includes: A sealing ring mounting hole provided outside the piston base; A sealing ring is at least partially located in the sealing ring mounting hole.

8. A hydraulic damper, characterized in that: Comprising a piston as described in any one of claims 1-7.

9. A hydraulic damper according to claim 8, characterized in that: The number of the pistons is one or two. When the number of the pistons is two, one ends of the two pistons having the check members are in contact with each other.

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