Front fork damping device

Abstract

The utility model discloses a front fork damping device, which relates to the technical field of damping devices, and comprises a main body mechanism, a telescopic rod mechanism and the like, the main body mechanism comprises a shell, a rear cover is arranged at one end of the shell, a front cover is arranged at the other end of the shell, a first spring is arranged in the shell, and a second spring is arranged at the other end of the shell. A partition plate is arranged at the position, on one side of the first spring, in the shell, the main body mechanism of the device is provided with the two springs different in elastic force, when the two springs are compressed for shock absorption, the compressed first spring at the rear portion can apply rebound force to the compressed second spring, and therefore the compressed second spring is buffered; the device is further provided with a telescopic rod mechanism used for connecting the front fork and the limiting plate, the length of the telescopic rod mechanism can be changed to change the distance between the front fork and the limiting plate so as to adapt to various installation environments, and the practicability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of shock absorbing devices, in particular to a front fork shock absorbing device. Background Art

[0002] The front fork shock absorber can play a shock absorbing role. For example, the patent website discloses an electric vehicle front fork shock absorber (publication number: CN219215274U). Only one spring is arranged in the device, and the spring will be compressed during the shock absorption process. When the compression is severe, it will cause the spring to deform, reduce the elastic potential energy of the spring, and affect the shock absorption effect. Therefore, technical personnel in this field have proposed a front fork shock absorber. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model provides a front fork shock absorbing device, which provides two springs for buffering and prolongs the service life of the device, solving the problem that only one spring is used in the above background, resulting in severe spring compression and easy damage.

[0004] To achieve the above objectives, the utility model is implemented through the following technical solutions: a front fork shock absorbing device, comprising:

[0005] A main body mechanism, the main body mechanism is used for shock absorption;

[0006] The main body mechanism comprises a shell, a rear cover is arranged at one end of the shell, a front cover is arranged at the other end of the shell, a first spring is arranged inside the shell, a partition is arranged inside the shell on one side of the first spring, a second spring is arranged inside the shell on one side of the partition, a limit plate is arranged inside the shell on one side of the second spring, the first spring and the second spring have different elastic forces, and a front fork is arranged outside the shell;

[0007] A telescopic rod mechanism is used for connecting components inside the main body mechanism.

[0008] As a further technical solution of the utility model, the outer surface of the rear cover is provided with a first external thread, and the inner wall of the port of the shell is provided with a first internal thread matched with the first external thread.

[0009] As a further technical solution of the utility model, the inner wall of the front cover is provided with a second internal thread, and the outer surface of the other port of the shell is provided with a second external thread matched with the second internal thread.

[0010] As a further technical solution of the utility model, the telescopic rod mechanism includes a main rod installed on the side of the limit plate and the end of which extends to the outside of the shell through the front cover, and the end of the main rod extending to the outside of the shell is provided with a storage groove.

[0011] As a further technical solution of the utility model, a secondary rod is slidably arranged in the storage groove, and a plurality of evenly distributed threaded holes are opened on the side of the secondary rod.

[0012] As a further technical solution of the utility model, a through hole aligned with one of the threaded holes is opened on the side of the main rod near the port, a bolt is arranged between the through hole and the threaded hole aligned with it, and a guide sleeve is sleeved on the surface of the main rod located inside the shell.

[0013] As a further technical solution of the utility model, the first spring and the second spring are welded into one body, and the partition plate is removed from the welded springs.

[0014] Beneficial Effects

[0015] The utility model provides a front fork shock absorbing device. Compared with the prior art, it has the following advantages:

[0016] Beneficial effects:

[0017] 1. A front fork shock absorbing device, the main body of which is provided with two springs with different elastic forces. When the two springs are compressed for shock absorption, the first spring compressed at the rear will give a rebound force to the compressed second spring, thereby buffering the compressed second spring, thereby avoiding the deformation of the second spring caused by severe compression and extending the service life of the device.

[0018] 2. A front fork shock absorbing device. The device is also provided with a telescopic rod mechanism for connecting the front fork and the limit plate. The length of the telescopic rod mechanism can be changed to change the distance between the front fork and the limit plate to adapt to a variety of installation environments and increase the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of a front fork shock absorbing device;

[0020] Figure 2 is a cross-sectional view of a front fork shock absorbing device;

[0021] Figure 3 This is a disassembled diagram of a telescopic rod mechanism of a front fork shock absorbing device;

[0022] Figure 4 This is a disassembled diagram of some components of the main mechanism of a front fork shock absorber.

[0023] In the figure: 1. shell; 2. back cover; 3. first external thread; 4. first internal thread; 5. front cover; 6. second external thread; 7. second internal thread; 8. first spring; 9. partition; 10. second spring; 11. limit plate; 12. main rod; 13. storage groove; 14. auxiliary rod; 15. threaded hole; 16. through hole; 17. bolt; 18. front fork; 19. guide sleeve. DETAILED DESCRIPTION

[0024] The present disclosure is further described in detail below in conjunction with the accompanying drawings and implementations. It is understood that the specific implementations described herein are only used to explain the relevant content, rather than to limit the present disclosure. It should also be noted that, for ease of description, only the parts related to the present disclosure are shown in the accompanying drawings.

[0025] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in the present disclosure can be combined with each other. The technical solution of the present disclosure will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0026] Unless otherwise specified, the exemplary embodiments / embodiments shown will be understood as providing exemplary features of various details of some ways in which the technical concept of the present disclosure can be implemented in practice. Therefore, unless otherwise specified, the features of the various embodiments / embodiments can be combined, separated, interchanged and / or rearranged in addition without departing from the technical concept of the present disclosure.

[0027] The use of cross-hatching and / or shading in the accompanying drawings is generally used to make the boundaries between adjacent components clear. As such, unless otherwise specified, the presence or absence of cross-hatching or shading does not convey or indicate any preference or requirement for the specific materials, material properties, dimensions, proportions, commonalities between the components shown, and / or any other characteristics, attributes, properties, etc. of the components. In addition, in the accompanying drawings, the sizes and relative sizes of the components may be exaggerated for clarity and / or descriptive purposes. When the exemplary embodiments can be implemented differently, the specific process sequence can be performed in a different order than described. For example, two successively described processes can be performed substantially simultaneously or in an order opposite to the described order. In addition, the same figure numbers represent the same components.

[0028] When a component is referred to as being "on" or "over," "connected to," or "coupled to" another component, the component may be directly on, directly connected to, or directly coupled to the other component, or intervening components may be present. However, when a component is referred to as being "directly on," "directly connected to," or "directly coupled to" another component, there are no intervening components. For this purpose, the term "connected" may refer to a physical connection, an electrical connection, etc., with or without intervening components.

[0029] For descriptive purposes, the present disclosure may use spatially relative terms such as "under," "beneath," "under," "down," "over," "upper," "above," "higher," and "side (e.g., as in "sidewall")," to describe the relationship of one component to another (other) component as shown in the accompanying drawings. The spatially relative terms are intended to encompass different orientations of the device in use, operation, and / or manufacture in addition to the orientation depicted in the accompanying drawings. For example, if the device in the accompanying drawings is turned over, components described as "under" or "beneath" other components or features would subsequently be positioned "over" the other components or features. Thus, the exemplary term "under" can encompass both the "above" and "below" orientations. Furthermore, the device may be otherwise oriented (e.g., rotated 90 degrees or at other orientations), and the spatially relative descriptors used herein should be interpreted accordingly.

[0030] The terms used here are for the purpose of describing specific embodiments, and are not intended to be restrictive. As used here, unless the context clearly indicates otherwise, the singular forms "one (kind, person)" and "said (the)" are also intended to include plural forms. In addition, when the terms "comprise" and / or "include" and their variations are used in this specification, it is explained that there are stated features, integral bodies, steps, operations, parts, assemblies and / or their groups, but it is not excluded that there are or add one or more other features, integral bodies, steps, operations, parts, assemblies and / or their groups. It should also be noted that, as used here, the terms "substantially", "approximately" and other similar terms are used as approximate terms and not as degree terms, so that they are used to explain the inherent deviations of the measured values, calculated values ​​and / or the values ​​provided that will be recognized by those of ordinary skill in the art.

[0031] like Figure 1-4 As shown, a front fork shock absorbing device disclosed in the present invention may include: a main body mechanism and a telescopic rod mechanism and other components;

[0032] like Figure 1-4 As shown, the main body mechanism includes a housing 1, a rear cover 2, a first external thread 3, a first internal thread 4, a front cover 5, a second external thread 6, a second internal thread 7, a first spring 8, a partition plate 9, a second spring 10, a limit plate 11, and a front fork 18;

[0033] The rear cover 2 is arranged at one end of the housing 1, the first external thread 3 is arranged on the outer surface of the rear cover 2, the first internal thread 4 is arranged on the inner surface of the port of the housing 1 and is matched with the first external thread 3, the front cover 5 is arranged at the other end of the housing 1, the second external thread 6 is arranged on the outer surface of the other port of the housing 1, the second internal thread 7 is arranged on the inner surface of the front cover 5 and is matched with the second external thread 6, the first spring 8 is arranged inside the housing 1, the partition 9 is arranged inside the housing 1 and is on one side of the first spring 8, the second spring 10 is arranged inside the housing 1 and is on one side of the partition 9, the limit plate 11 is arranged inside the housing 1 and is on one side of the second spring 10, the front fork 18 is arranged on one side of the housing 1, the elastic force of the second spring 10 is preferably greater than the elastic force of the first spring 8, and the two spring designs here can also be further increased according to usage requirements;

[0034] During use, when the front fork 18 is vibrated, the telescopic rod mechanism will drive the limit plate 11 to squeeze the second spring 10. In the process of squeezing the second spring 10, the partition plate 9 will squeeze the first spring 8, thereby squeezing the second spring 10 and the first spring 8 at the same time. While reducing shock, due to the different elastic forces of the first spring 8 and the second spring 10, the compressed first spring 8 will give a reaction force to the compressed second spring 10, thereby buffering the second spring 10, avoiding severe compression of the second spring 10 and causing its deformation, thereby extending the service life of the device. Rotating the rear cover 2 can separate the shell 1 and the rear cover 2, thereby opening one end of the shell 1, and rotating the front cover 5 can also separate the shell 1 and the front cover 5, thereby opening the other end of the shell 1.

[0035] like Figure 1-4 As shown, the telescopic rod mechanism includes a main rod 12, a receiving groove 13, a secondary rod 14, a threaded hole 15, a through hole 16, a bolt 17, and a guide sleeve 19;

[0036] The main rod 12 is installed on the side of the limit plate 11 and extends to the outside of the housing 1 through the front cover 5. The receiving groove 13 is provided at the end of the main rod 12 extending to the outside of the housing 1. The auxiliary rod 14 is slidably provided in the receiving groove 13. A plurality of threaded holes 15 are provided on the side of the auxiliary rod 14. The through hole 16 is provided on the side of the receiving groove 13 and is aligned with a threaded hole 15. The bolt 17 is provided in the through hole 16 and the threaded hole 15 aligned therewith. The guide sleeve 19 is sleeved on the surface of the main rod 12 in the housing 1.

[0037] The telescopic rod mechanism is used to fix the front fork 18 and the limit plate 11. When the length of the telescopic rod mechanism needs to be adjusted, the bolt 17 is unscrewed by a screwdriver to release the connection between the auxiliary rod 14 and the main rod 12. Then, the auxiliary rod 14 is pulled outward to align the other threaded hole 15 with the through hole 16. Then, the bolt 17 is re-screwed into the through hole 16 and the threaded hole 15 aligned therewith, and the auxiliary rod 14 and the main rod 12 are re-fixed to change the length of the telescopic rod mechanism, thereby changing the distance between the front fork 18 and the limit plate 11 to adapt to a variety of installation environments and increase the practicality of the device. Of course, the first spring 8 and the second spring 10 in the above structure can also be directly welded and fixed. At the same time, since the two are an integral part, the partition plate 9 can be directly removed.

[0038] In the description of this specification, the description with reference to the terms "one embodiment / method", "some embodiments / methods", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment / method or example are included in at least one embodiment / method or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment / method or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments / methods or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments / methods or examples described in this specification and the features of different embodiments / methods or examples, unless they are contradictory.

[0039] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0040] Those skilled in the art should understand that the above embodiments are only for the purpose of clearly illustrating the present disclosure, and are not intended to limit the scope of the present disclosure. For those skilled in the art, other changes or modifications may be made based on the above disclosure, and these changes or modifications are still within the scope of the present disclosure.

Claims

1. A front fork shock absorbing device, characterized in that: include: A main body mechanism, the main body mechanism is used for shock absorption; The main body mechanism comprises a shell (1), a rear cover (2) is provided at one end of the shell (1), a front cover (5) is provided at the other end of the shell (1), a first spring (8) is provided inside the shell (1), a partition (9) is provided inside the shell (1) on one side of the first spring (8), a second spring (10) is provided inside the shell (1) on one side of the partition (9), a limit plate (11) is provided inside the shell (1) on one side of the second spring (10), the first spring (8) and the second spring (10) have different elastic forces, and a front fork (18) is provided outside the shell (1); A telescopic rod mechanism is used for connecting components inside the main body mechanism.

2. A front fork shock absorbing device according to claim 1, characterized in that: The outer surface of the rear cover (2) is provided with a first external thread (3), and the inner wall of the port of the housing (1) is provided with a first internal thread (4) matched with the first external thread (3).

3. A front fork shock absorbing device according to claim 1, characterized in that: The inner wall of the front cover (5) is provided with a second internal thread (7), and the outer surface of the other port of the housing (1) is provided with a second external thread (6) matching the second internal thread (7).

4. A front fork shock absorbing device according to claim 1, characterized in that: The telescopic rod mechanism comprises a main rod (12) which is mounted on the side of a limit plate (11) and whose end extends through a front cover (5) to the outside of the housing (1); a receiving groove (13) is provided at the end of the main rod (12) extending to the outside of the housing (1).

5. A front fork shock absorbing device according to claim 4, characterized in that: A secondary rod (14) is slidably arranged in the receiving groove (13), and a side surface of the secondary rod (14) is provided with a plurality of evenly distributed threaded holes (15).

6. A front fork shock absorbing device according to claim 5, characterized in that: A through hole (16) aligned with one of the threaded holes (15) is provided on the side of the main rod (12) near the port, a bolt (17) is provided between the through hole (16) and the threaded hole (15) aligned therewith, and a guide sleeve (19) is sleeved on the surface of the main rod (12) located inside the housing (1).

7. A front fork shock absorbing device according to claim 1, characterized in that: The first spring (8) and the second spring (10) are welded together as a whole, and the partition plate (9) is removed from the welded springs.

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