Fastener support device and fastener mounting assembly

Abstract

The application discloses a fastener supporting device and a fastener mounting assembly. The fastener supporting device comprises a supporting body, the supporting body is provided with an accommodating groove, a limiting protrusion and an elastic limiting part are arranged in the accommodating groove; the limiting protrusion is located between the groove opening of the accommodating groove and the elastic limiting part to define an anti-disengagement opening, the anti-disengagement opening is used for limiting the fastener embedded in the elastic limiting part; the elastic limiting part comprises a pre-installation cavity for adjusting the position of the fastener and a positioning cavity for limiting the fastener in sequence in the direction away from the anti-disengagement opening. The fastener supporting device and the fastener mounting assembly provided by the application allow the fastener to displace and rotate to adjust the path when the fastener is mounted on the counterhand, solve the position interference problem when the fastener is mounted on the counterhand, meanwhile, the fastening performance after mounting is ensured, and the product design and development cost is reduced.

Description

Technical Field

[0001] This application relates to the field of vehicle component technology, and in particular to a fastener support device and a fastener mounting assembly. Background Technology

[0002] As vehicles are constantly being updated, users are increasingly demanding personalized designs and appearances. Among these, decorative parts are important components used to enhance vehicle personalization and design appeal.

[0003] Because the vehicle body already has fixed structural components, some decorative parts may interfere with the surrounding structural components during installation. Rotation or repositioning is required to ensure the decorative parts reach their intended installation positions. However, during this rotation or repositioning, the relative positions of the fasteners and connecting parts need to be adjusted to maintain a stable connection. Since the fasteners and connecting parts are generally fixed and cannot be rotated, the inventors discovered that changing the fasteners would require improved installation performance; changing the decorative parts would necessitate an enhanced design; and changing the entire installation method would require optimization of design, development, and production costs. Summary of the Invention

[0004] The purpose of this application is to provide a fastener support device and a fastener installation assembly to solve the problems existing in the prior art. The support body automatically adjusts the relative position of the fastener according to the positional relationship between the fastener and the surrounding components to ensure the smooth installation of the fastener and decorative parts.

[0005] This application provides a fastener support device, including a support body with a receiving groove. The receiving groove is provided with a limiting protrusion and an elastic limiting part. The limiting protrusion is located between the opening of the receiving groove and the elastic limiting part to define an anti-disengagement opening. The anti-disengagement opening is used to limit the fastener embedded in the elastic limiting part. The elastic limiting part includes, in sequence along the direction away from the anti-disengagement opening, a pre-installation cavity for adjusting the position or rotating the fastener and a positioning cavity for limiting the fastener.

[0006] Optionally, the receiving groove includes a first inner groove surface and a second inner groove surface disposed opposite to each other, the first inner groove surface and the second inner groove surface being disposed at opposite angles at the opening of the receiving groove so that the opening of the receiving groove is open.

[0007] Optionally, the limiting protrusion includes a first protrusion and a second protrusion, wherein the first protrusion is mounted on the first inner groove surface and the second protrusion is mounted on the second inner groove surface.

[0008] Optionally, the elastic limiting part includes a first spring and a second spring, the first spring and the second spring are disposed opposite to each other to define the pre-installation cavity and the positioning cavity, a distance is left between the first spring and the first inner groove surface, and a distance is left between the second spring and the second inner groove surface.

[0009] Optionally, the portions of the first and second springs near the limiting protrusion are tilted in opposite directions to open the pre-installation cavity.

[0010] Optionally, the inner diameter of the positioning cavity in its free state is equal to or less than the inner diameter of the portion of the fastener embedded in the elastic limiting part.

[0011] Optionally, the support body includes a first support wall and a second support wall, wherein the first support wall and the second support wall are connected at one end extending in the same direction to define the receiving groove.

[0012] Optionally, the first end of the first spring is mounted on the first protrusion, and the first end of the second spring is mounted on the second protrusion.

[0013] Optionally, a protruding first limiting step is provided on the first inner groove surface, and a protruding second limiting step is provided on the second inner groove surface. The second end of the first spring is installed on the outer edge of the first limiting step, and the second end of the second spring is installed on the outer edge of the second limiting step.

[0014] The fastener mounting assembly provided in this application includes any of the fastener support devices, fasteners, and locking parts described above. The fastener includes a limiting part and a snap-fit ​​part. The locking part has a mounting hole. The limiting part is limited to the receiving groove, and the snap-fit ​​part snaps into the mounting hole.

[0015] The above technical solution has the following beneficial effects:

[0016] The fastener support device and fastener mounting assembly provided in this application, through the anti-disengagement opening defined by the limiting protrusion, can confine the fastener within the pre-installation cavity. During the installation of the decorative part onto the matching part, the fastener undergoes a certain displacement and rotation within the pre-installation cavity, allowing it to bypass position interference components and be installed at a predetermined position on the matching part. After the fastener is installed on the matching part, the reaction force on the matching part is transmitted through the fastener to the elastic limiting part. The elastic limiting part deforms under pressure, causing the portion of the fastener embedded within the elastic limiting part to move towards the positioning cavity, automatically moving to the positioning cavity and being stably positioned within it under the elastic limiting action of the elastic limiting part. The fastener support device and fastener mounting assembly provided in this application allow for a certain displacement and rotation of the fastener to adjust its path when installed on the matching part, solving the position interference problem during fastener installation on the matching part, while ensuring the fastening performance after installation and reducing the cost of separate product design and development. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the fastener located in the pre-installation cavity of the fastener support device in one embodiment of this application;

[0018] Figure 2 This is a schematic diagram of the structure of the fastener located in the positioning cavity of the fastener support device in one embodiment of this application;

[0019] Figure 3 This is a schematic diagram of the structure of the fastener not installed into the fitting in one embodiment of this application;

[0020] Figure 4 This is a schematic diagram of the structure after the fastener is installed into the fitting in one embodiment of this application;

[0021] Figure 5 This is a cross-sectional view of the device after it has been fastened into the device according to one embodiment of this application.

[0022] Attached icon number

[0023] 1-Supporting body, 10-Accommodation groove, 11-First inner groove surface, 12-Second inner groove surface, 13-First support wall, 14-Second support wall, 15-First limiting step, 16-Second limiting step;

[0024] 2-Limiting protrusion, 20-Anti-slip opening, 21-First protrusion, 22-Second protrusion;

[0025] 3-Elastic limiting part, 30-First spring piece, 31-Second spring piece, 32-Pre-installation cavity, 33-Positioning cavity;

[0026] 4-Fastener, 40-Limiting part, 41-Snap-fit ​​part;

[0027] 5 - Opposite part, 50 - Mounting hole. Detailed Implementation

[0028] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0029] It is readily understood that, based on the technical solution of this invention, various structural and implementation methods can be interchanged by those skilled in the art without altering the essential spirit of the invention. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative examples of the technical solution of this invention and should not be considered as the entirety of the invention or as limitations or restrictions on the technical solution of the invention.

[0030] The directional terms such as up, down, left, right, front, back, front, back, top, and bottom mentioned or possibly used in this specification are defined relative to the structures shown in the accompanying drawings. They are relative concepts and may therefore vary depending on their location and usage. Therefore, these or other directional terms should not be interpreted as restrictive.

[0031] This application provides a fastener support device, including a support body 1. The support body 1 has a receiving groove 10, within which a limiting protrusion 2 and an elastic limiting portion 3 are provided. The limiting protrusion 2 is located between the opening of the receiving groove 10 and the elastic limiting portion 3 to define an anti-disengagement opening 20, which is used to limit the fastener 4 embedded in the elastic limiting portion 3. The elastic limiting portion 3, along the direction away from the anti-disengagement opening 20, sequentially includes a pre-installation cavity 32 for adjusting the position or rotating the fastener 4 and a positioning cavity 33 for limiting the fastener 4.

[0032] In this embodiment, the size of the anti-disengagement opening 20 is smaller than the outer diameter of the portion of the fastener 4 embedded in the receiving groove 10. When the fastener 4 enters the receiving groove 10, the supporting body 1 deforms under force, causing the instantaneous size of the anti-disengagement opening 20 to be larger than the outer diameter of the fastener 4, so that the fastener 4 can enter the elastic limiting part 3 through the anti-disengagement opening 20. The inner diameter of the pre-installation cavity 32 is set to be greater than or equal to the outer diameter of the portion of the fastener 4 embedded, so that the fastener 4 can be adjusted in position or rotated within the pre-installation cavity 32. The positioning cavity 33 is provided with a flexible clamping cavity or a holding structure to limit the fastener 4.

[0033] Furthermore, during the design process, by limiting the size, when the fastener 4 is installed on the counter 5, the part of the fastener 4 embedded in the receiving groove 10 under the action of the counter 5 is correspondingly located at the position of the positioning cavity 33, so that after the fastener 4 is installed on the counter 5, it can move to the positioning cavity 33 for limiting under the alignment action of the counter 5.

[0034] The fastener support device provided in this application embodiment, through the anti-disengagement opening 20 defined by the limiting protrusion 2, can confine the fastener 4 within the pre-installation cavity 32, such as... Figure 1 As shown. During the installation of the decorative part onto the opponent part 5, the fastener 4 can undergo a certain displacement and rotation within the pre-installation cavity 32, so that the fastener 4 is installed at a predetermined position on the opponent part 5, bypassing the position interference component. For example, as... Figure 3 The fastener 4 is installed in the mounting hole shown. After the fastener 4 is installed on the counter 5, the reverse force of the counter 5 is transmitted to the elastic limiting part 3 through the fastener 4. The elastic limiting part 3 is compressed and deformed, causing the portion of the fastener 4 embedded in the elastic limiting part 3 to move toward the positioning cavity 33. It automatically moves to the positioning cavity 33 and is stably set in the positioning cavity 33 under the elastic limiting action of the elastic limiting part 3. Figure 1 , Figure 4 and Figure 5 As shown. The fastener support device provided in this application embodiment allows the fastener 4 to undergo a certain displacement and rotation to adjust its path when installed on the counterpart 5, solving the positional interference problem when the fastener 4 is installed on the counterpart 5, while ensuring the fastening performance after installation and reducing the cost of separate product design and development.

[0035] As an optional embodiment, the receiving groove 10 includes a first inner groove surface 11 and a second inner groove surface 12 disposed opposite to each other. The first inner groove surface 11 and the second inner groove surface 12 are disposed at opposite angles to the opening of the receiving groove 10 so that the opening of the receiving groove 10 is open. Figures 1 to 2 As shown, the opening of the receiving groove 10 is a tapered structure with a large edge size that gradually decreases towards the limiting protrusion 2. The tapered opening design on the receiving groove 10 serves to guide and reduce the difficulty for the fastener 4 to flip over the anti-disengagement opening 20 when it is embedded in the receiving groove 10.

[0036] As an optional embodiment, the limiting protrusion 2 includes a first protrusion 21 and a second protrusion 22, the first protrusion 21 being mounted on the first inner groove surface 11, and the second protrusion 22 being mounted on the second inner groove surface 12. Figures 1 to 2 As shown, the first protrusion 21 and the second protrusion 22 define an anti-disengagement opening 20, which can effectively limit the fastener 4 embedded in the elastic limiting part 3. In an optional embodiment of this application, the tilt angle of the first protrusion 21 and the second protrusion 22 toward the side of the elastic limiting part 3 is set to be small, such as 1°-30°, so that the narrowing path of the anti-disengagement opening 20 toward the elastic limiting part 3 is shorter, effectively preventing the fastener 4 from disengaging in the opposite direction and achieving a better limiting effect.

[0037] As an optional embodiment, the elastic limiting part 3 includes a first spring piece 30 and a second spring piece 31. The first spring piece 30 and the second spring piece 31 are disposed opposite to each other to define a pre-installation cavity 32 and a positioning cavity 33. A distance is left between the first spring piece 30 and the first inner groove surface 11, and a distance is left between the second spring piece 31 and the second inner groove surface 12. Please refer to Figures 1 to 2 The first spring 30 is installed on the side close to the first inner groove surface 11, and the second spring 31 is installed on the side close to the second inner groove surface 12. There is a gap between the first spring 30 and the first inner groove surface 11, which allows the first spring 30 to have a certain deformation space. There is a gap between the second spring 31 and the second inner groove surface 12, which allows the second spring 31 to have a certain deformation space.

[0038] As an optional embodiment, the portions of the first spring 30 and the second spring 31 near the limiting protrusion 2 are arranged in opposite directions to open the pre-installation cavity. Please refer to... Figures 1 to 2 The first spring 30 and the second spring 31 are bent outward at the position of the pre-installation cavity in an inclined state to define a space for the fastener 4 to be positioned and rotated.

[0039] As an optional embodiment, the inner diameter of the positioning cavity 33 in its free state is equal to or less than the inner diameter of the portion of the fastener 4 embedded in the elastic limiting part 3. Please refer to... Figure 2 The fastener 4 is located at the positioning cavity 33. The first spring 30 and the second spring 31 are both under compression, generating a reverse fastening force on the fastener 4, so that the fastener 4 is stably positioned at the positioning cavity 33. As an optional embodiment, through structural design, the first spring 30 and the second spring 31 are bent at the position where the fastener 4 is embedded to define a cylindrical cavity, so as to better limit the fastener 4.

[0040] As an optional embodiment, the support body 1 includes a first support wall 13 and a second support wall 14, with the ends of the first support wall 13 and the second support wall 14 extending in the same direction connected to define a receiving groove 10. Figures 1 to 2 As shown, the first support wall 13 and the second support wall 14 can undergo a certain deformation after being subjected to force, so that the fastener 4 can enter the anti-disengagement opening 20 from the slot of the receiving groove 10. Further, as... Figures 3 to 5 As shown, the support body 1 is a U-shaped mounting structure located on the decorative piece. The first support wall 13 and the second support wall 14 are located on a support plate of the U-shaped structure for mounting fasteners 4.

[0041] As an optional embodiment, the first end of the first spring 30 is mounted on the first protrusion 21, and the first end of the second spring 31 is mounted on the second protrusion 22. Please also refer to... Figures 1 to 2The first spring piece 30 is installed on the lower slope of the first protrusion 21, which allows a certain distance to be reserved between the first spring piece 30 and the first inner groove surface 11. The second spring piece 31 is installed on the lower slope of the second protrusion 22, which allows a certain distance to be reserved between the second spring piece 31 and the second inner groove surface 12, thus simplifying construction.

[0042] As an optional embodiment, a protruding first limiting step 15 is provided on the first inner groove surface 11, and a protruding second limiting step 16 is provided on the second inner groove surface 12. The second end of the first spring piece 30 is mounted on the outer edge of the first limiting step 15, and the second end of the second spring piece 31 is mounted on the outer edge of the second limiting step 16. Please also refer to... Figures 1 to 2 The second end of the first spring piece 30 is installed on the first limiting step 15, which also allows a gap to be left between the first spring piece 30 and the first inner groove surface 11. The second end of the second spring piece 31 is installed on the second limiting step 16, which also allows a gap to be left between the second spring piece 31 and the second inner groove surface 12.

[0043] This application also provides a fastener mounting assembly, including a fastener support device, a fastener 4, and a locking member 5 according to any of the above embodiments. The fastener 4 includes a limiting part 40 and a snap-fit ​​part 41. The locking member 5 has a mounting hole 50. The limiting part 40 is limited in the receiving groove 10, and the snap-fit ​​part 41 is snapped into the mounting hole 50.

[0044] Please refer to the following at the same time Figures 1 to 5 The fastener mounting assembly provided in this application embodiment, through the anti-disengagement opening 20 defined by the limiting protrusion 2, can confine the fastener 4 within the pre-installation cavity 32, such as... Figure 1 As shown. During the installation of the decorative part on the opponent 5, the fastener 4 can undergo a certain displacement and rotation within the pre-installation cavity 32, so that the fastener 4 is installed in the predetermined position of the opponent 5 while maintaining connection with the fastener support device, such as... Figure 3 The fastener 4 is installed in the mounting hole 50 shown. After the fastener 4 is installed on the counter-attachment 5, under the lateral and reverse force of the inner wall of the mounting hole 50, the portion of the fastener 4 embedded in the receiving groove 10 is squeezed by the elastic limiting part 3 and moves toward the positioning cavity 33. It automatically moves to the positioning cavity 33 and is stably set in the positioning cavity 33 under the elastic restoring force of the elastic limiting part 3, as shown. Figure 1 , Figure 4 and Figure 5 As shown.

[0045] As needed, the above technical solutions can be combined to achieve the best technical effect.

[0046] The above are merely the principles and preferred embodiments of the present invention. It should be noted that, for those skilled in the art, several other modifications can be made based on the principles of the present invention, and these modifications should also be considered within the scope of protection of the present invention.

Claims

1. A fastener support device, characterized in that, The support body includes a receiving groove, and a limiting protrusion and an elastic limiting part are provided in the receiving groove; The receiving groove includes a first inner groove surface and a second inner groove surface arranged opposite to each other. The first inner groove surface and the second inner groove surface are arranged at opposite angles at the opening of the receiving groove so that the opening of the receiving groove is open. The limiting protrusion is located between the opening of the receiving groove and the elastic limiting part to define an anti-disengagement opening, which is used to limit the fastener embedded in the elastic limiting part; The limiting protrusion includes a first protrusion and a second protrusion, the first protrusion being installed on the first inner groove surface and the second protrusion being installed on the second inner groove surface; The elastic limiting part includes, in sequence along the direction away from the anti-disengagement opening, a pre-installation cavity for adjusting the position or rotating the fastener and a positioning cavity for limiting the fastener. The inner diameter of the pre-installation cavity is greater than or equal to the outer diameter of the fastener embedding part. The elastic limiting part includes a first spring and a second spring. The first spring and the second spring are arranged opposite to each other to define the pre-installation cavity and the positioning cavity. There is a distance between the first spring and the first inner groove surface, and there is a distance between the second spring and the second inner groove surface. The first end of the first spring is mounted on the first protrusion, and the first end of the second spring is mounted on the second protrusion. The first and second springs are bent outward at the position of the pre-installation cavity to define a space for the fastener to be positioned and rotated. The fastener is located at the position of the positioning cavity, and both the first and second springs are in a compressed state, generating a reverse fastening force on the fastener.

2. The fastener support device according to claim 1, characterized in that, The portions of the first and second springs near the limiting protrusion are tilted in opposite directions to open the pre-installation cavity.

3. The fastener support device according to claim 1, characterized in that, The inner diameter of the positioning cavity in its free state is equal to or less than the inner diameter of the portion of the fastener embedded in the elastic limiting part.

4. The fastener support device according to claim 1, characterized in that, The supporting body includes a first supporting wall and a second supporting wall, and the first supporting wall and the second supporting wall are connected at one end extending in the same direction to define the receiving groove.

5. The fastener support device according to any one of claims 1-4, characterized in that, The first inner groove surface is provided with a protruding first limiting step, and the second inner groove surface is provided with a protruding second limiting step. The second end of the first spring is installed on the outer edge of the first limiting step, and the second end of the second spring is installed on the outer edge of the second limiting step.

6. A fastener mounting assembly, characterized in that, The fastener includes the fastener support device, fastener, and clamp as described in any one of claims 1-5, wherein the fastener includes a limiting part and a snap-fit ​​part, the clamp has an installation hole, the limiting part is limited in the receiving groove, and the snap-fit ​​part snaps into the installation hole.

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