Novel fastening and dismounting part

Abstract

The utility model relates to a novel fastening and detaching piece which comprises a clamping part, a fastening part and a fastening part. The clamping part is provided with a first end face and a second end face in the axial direction. The annular dismounting part is fixedly arranged on the first end face, and the inner diameter of the annular dismounting part is D1; the elastic connecting parts are fixed to the second end face at intervals in the circumferential direction; the number of the buckle parts is multiple, and the buckle parts are fixed to the outer side faces of the elastic connecting parts in a one-to-one correspondence mode. The minimum outer diameter of the buckling part is D2, the maximum outer diameter of the buckling part is D3, and D1 is larger than D2 and smaller than D3. The fastening and detaching parts are convenient to fix, the two fastening and detaching parts can be detached from each other, and operation is easy and convenient.

Description

Technical Field

[0001] This utility model relates to the field of fastener equipment, and in particular to a novel fastening and disassembly component. Background Technology

[0002] In daily production and life, two or more objects need to be fixed together by fasteners. Common fasteners include bolts, pins, etc. These fasteners are not easy to disassemble after being fixed, and disassembly requires the use of other tools, which is quite troublesome. Utility Model Content

[0003] The purpose of this utility model is to provide a new type of fastening and disassembly component, which has the characteristics of convenient installation and disassembly and has good applicability.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A novel fastening and disassembly component for securing a first component and a second component, comprising:

[0006] The clamping part has a first end face and a second end face along the axial direction;

[0007] An annular disassembly part is fixedly disposed on the first end face, and the inner diameter of the annular disassembly part is D1;

[0008] Multiple elastic connecting parts are provided, and each elastic connecting part is fixed to the second end face at intervals along the circumferential direction;

[0009] Multiple snap-fit ​​parts are provided, and each snap-fit ​​part is fixed to the outer side surface of each elastic connecting part in a one-to-one correspondence; the minimum outer diameter of the snap-fit ​​part is D2, the maximum outer diameter of the snap-fit ​​part is D3, and D2 < D1 < D3.

[0010] Preferably, the structural strength of the annular disassembly portion is greater than the structural strength of the elastic connection portion.

[0011] Preferably, along the axial direction, the height of the annular disassembly portion is greater than the height of the snap-fit ​​portion.

[0012] Preferably, the outer surface of the latching part is a conical surface, and the diameter of the conical surface gradually decreases along the direction away from the clamping part.

[0013] Preferably, the first component has a first through hole, and the second component has a second through hole. The inner diameters of the first through hole and the second through hole are both D4, and D4 < D3, D1 < D4.

[0014] Preferably, the elastic connecting portion can be located within the first through hole and the second through hole, and the snap-fit ​​portion abuts against the first component, and the clamping portion abuts against the second component.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] The novel fastening and disassembly component provided in the above technical solution can be fastened by having the snap-fit ​​part abut against the first component and the clamping part abut against the second component during fastening. During disassembly, the snap-fit ​​part abuts against the snap-fit ​​part through the annular disassembly part of another fastening and disassembly component, and pushes the elastic connecting part to bend inward, so that the snap-fit ​​part can disengage from the first component, thereby achieving the disassembly of the first and second components. The fastening and disassembly component is easy to fix, and the two fastening and disassembly components can be disassembled from each other, making the operation simple and convenient. Attached Figure Description

[0017] Figure 1 A schematic diagram of the assembly of the novel fastening and disassembly component with the first component and the second component provided in the embodiments of this utility model;

[0018] Figure 2 A cross-sectional schematic diagram of the novel fastening and disassembly component and the first and second components provided in the embodiments of this utility model;

[0019] Figure 3 A schematic diagram of the novel fastening and disassembly component provided in an embodiment of this utility model.

[0020] 1. First component; 2. Second component; 3. Clamping part; 31. First end face; 32. Second end face; 4. Annular disassembly part; 5. Elastic connecting part; 6. Buckle part. Detailed Implementation

[0021] The present invention will now be described in more detail with reference to the accompanying drawings. It should be noted that the description of the present invention with reference to the accompanying drawings is merely illustrative and not restrictive. Various embodiments can be combined with each other to form other embodiments not shown in the following description.

[0022] Please see Figures 1 to 3 The novel fastening and disassembly component provided in this embodiment includes a clamping part 3, an annular disassembly part 4, an elastic connecting part 5, and a snap-fit ​​part 6.

[0023] Specifically, the clamping part 3 has a first end face 31 and a second end face 32 along the axial direction; the annular disassembly part 4 is fixedly disposed on the first end face 31, and the inner diameter of the annular disassembly part 4 is D1; ​​multiple elastic connecting parts 5 are provided, and each elastic connecting part 5 is fixedly fixed to the second end face 32 at intervals along the circumferential direction; multiple latching parts 6 are provided, and each latching part 6 is fixedly fixed to the outer side surface of each elastic connecting part 5 in a one-to-one correspondence; the minimum outer diameter of the latching part 6 is D2, the maximum outer diameter of the latching part 6 is D3, and D2 < D1 < D3.

[0024] This embodiment provides a novel fastening and disassembly component. When fastening, the snap-fit ​​part 6 abuts against the first component 1, and the clamping part 3 abuts against the second component 2, thus fixing the first component 1 and the second component 2. When disassembling, the annular disassembly part 4 of another fastening and disassembly component abuts against the snap-fit ​​part 6, and pushes the elastic connecting part 5 to bend inward, so that the snap-fit ​​part 6 can disengage from the first component 1, thereby disassembling the first component 1 and the second component 2. The fastening and disassembly component is easy to fix, and the two fastening and disassembly components can be disassembled from each other, making the operation simple and convenient.

[0025] It can be assumed that the clamping part 3 is cylindrical in shape, so the axial direction of the clamping part 3 is defined as the axial direction, and the direction perpendicular to the axial direction is defined as the radial direction.

[0026] Preferably, the annular disassembly part 4 and the clamping part 3 are integrally formed.

[0027] It should be noted that the elasticity of the elastic connection part 5 refers to the fact that the elastic connection part 5 can be slightly bent inward in the radial direction. However, in the axial direction, the elastic connection part 5 cannot be compressed or stretched.

[0028] Importantly, since D2 < D1 < D3, when the other fastening and disassembly component moves axially, its annular disassembly portion 4 can abut against the snap-fit ​​portion 6. As the other fastening and disassembly component continues to move axially, its annular disassembly portion 4 can continue to abut against the snap-fit ​​portion 6, and during this period, the elastic connecting portion 5 bends inward so that the snap-fit ​​portion 6 disengages from the first component 1. At this time, pulling out the fastening and disassembly component axially can disassemble the first component 1 and the second component 2.

[0029] The structural strength of the annular disassembly part 4 is greater than that of the elastic connecting part 5. It can be understood that the structural strength here refers to the strength in radial bending; the greater the structural strength, the less likely it is to bend radially. Since the annular disassembly part 4 has greater structural strength, it can push the elastic connecting part 5 inward through the snap-fit ​​part 6, thereby causing the snap-fit ​​part 6 to disengage from the first component 1.

[0030] Along the axial direction, the height of the annular disassembly portion 4 is greater than the height of the latching portion 6. It is conceivable that as the other fastening disassembly component continues to move axially, its annular disassembly portion 4 can eventually abut against the first component 1. At this time, the latching portion 6 can be located inside the annular disassembly portion 4 of the other fastening disassembly component. Therefore, the height of the annular disassembly portion 4 needs to be greater, otherwise the elastic connecting portion 5 may not be able to bend inward enough, so that the latching portion 6 cannot be completely disengaged from the first component 1.

[0031] The outer surface of the latching part 6 is a conical surface, and the diameter of the conical surface gradually decreases along the direction away from the clamping part 3. Therefore, the annular disassembly part 4 of another fastening and disassembly part can abut against the conical surface and move axially along the conical surface, while driving the elastic connecting part 5 to bend inward through the conical surface.

[0032] The first component 1 has a first through hole, and the second component 2 has a second through hole. The inner diameters of both the first and second through holes are D4, and D4 < D3, D1 < D4. It should be noted that the diameters D1, D2, D3, and D4 in this application refer to the diameters when the first component 1 and the second component 2 are stationary after being fixed by the fastening and disassembly components.

[0033] Since D4 < D3, the latching part 6 can abut against the first component 1. During disassembly, the latching part 6 needs to be disengaged from the first component 1 by bending the elastic connecting part 5. Therefore, in this embodiment, by D1 < D4, when the latching part 6 is located inside the annular disassembly part 4 of another fastening disassembly part, the reduced D3 < D4. At this time, it is only necessary to pull out the fastening disassembly part axially to disassemble the first component 1 and the second component 2.

[0034] The elastic connecting part 5 can be located within the first through hole and the second through hole, and the snap-fit ​​part 6 abuts against the first component 1, and the clamping part 3 abuts against the second component 2. When fixing, as long as the fastening and disassembly parts are moved axially, the elastic connecting part 5 and the snap-fit ​​part 6 pass through the second through hole and the first through hole in sequence. At this time, the snap-fit ​​part 6 can abut against the first component 1, and the clamping part 3 can abut against the second component 2, thereby fixing the first component 1 and the second component 2.

[0035] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A new fastening and dismounting element for fastening a first part (1) and a second part (2), characterized in that, The utility model relates to a first component (1) and a second component (2) are connected through a clamping part (3), and the first component (1) and the second component (2) are connected through the clamping part (3) to form a whole. The clamping part (3) has a first end face (31) and a second end face (32) in the axial direction; A ring-shaped dismounting part (4) is fixedly arranged on the first end face (31), and the inner diameter of the ring-shaped dismounting part (4) is D1; A plurality of elastic connecting parts (5) are arranged on the second end face (32) in the circumferential direction; A plurality of buckle parts (6) are arranged on the outer side of each elastic connecting part (5) one by one, the minimum outer diameter of the buckle part (6) is D2, the maximum outer diameter of the buckle part (6) is D3, and D2 < D1 < D3.

2. The novel fastening and unfastening member according to claim 1, wherein The structural strength of the ring-shaped dismounting part (4) is greater than that of the elastic connecting part (5).

3. The novel fastening and unfastening member according to claim 1, wherein In the axial direction, the height of the ring-shaped dismounting part (4) is greater than that of the buckle part (6).

4. The novel fastening and unfastening member according to claim 1, wherein The outer side of the buckle part (6) is a tapered surface, and the diameter of the tapered surface gradually decreases in the direction away from the clamping part (3).

5. The novel fastening and unfastening member according to claim 1, wherein The first component (1) has a first through hole, the second component (2) has a second through hole, the inner diameter of the first through hole and the second through hole is D4, and D4 < D3, D1 < D4.

6. The novel fastening-disassembly member according to claim 5, wherein The elastic connecting part (5) can be located in the first through hole and the second through hole, and the buckle part (6) is in abutment with the first component (1), and the clamping part (3) is in abutment with the second component (2).

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