A fastener for securing a seat harness

Abstract

The application discloses a fastener for fixing a seat wire harness, relates to the technical field of wire harness fixing, and comprises a wire pressing block and two fixing rods, wherein the wire pressing block is rotationally arranged between the two fixing rods and is in an elliptic column structure; the axis of the wire pressing block is perpendicular to the axis of the fixing rod, and the short axis of the elliptic surface of the wire pressing block is parallel to the axis of the fixing rod; a plurality of clamping ring pieces are arranged on the fixing rod along the axis, and the wire pressing block is located above the clamping ring pieces; and the technical effect of avoiding loosening of the wire harness when the wire harness is subjected to a large pulling force is achieved.

Description

Technical Field

[0001] This utility model relates to the field of wire harness fixing technology, and in particular to a fastener for fixing seat wire harnesses. Background Technology

[0002] In the field of automotive seat wiring harness fixing, cable ties, clips, or pressure plates are commonly used to secure the wiring harness to the seat mounting plate to prevent displacement due to vibration or pulling during vehicle operation. While these traditional fixing methods achieve basic positioning, they still have significant drawbacks in practical applications: when the wiring harness is subjected to significant tensile force, the friction between the fixing device and the wiring harness is easily overcome, causing the wiring harness to slide within the fixing device or even detach, leading to problems such as wiring harness wear, short circuits, or connection failures, seriously affecting the reliability and durability of the wiring harness fixing.

[0003] In existing technologies, some improvements enhance the fixing effect by increasing the connection strength between the fastener and the mounting plate (e.g., using a multi-clamp structure) or increasing the contact area between the pressure plate and the wire harness (e.g., a flat pressure plate design). However, such designs still cannot fundamentally solve the problem of loosening when the wire harness is under tension. Specifically, the contact surface between the flat pressure plate and the wire harness is a rigid plane. When the wire harness is pulled, the friction between the pressure plate and the wire harness can only be maintained by increasing the clamping force. However, the increase in clamping force is limited by the structural strength of the fastener and the installation space, resulting in limited improvement in pull-out resistance. Utility Model Content

[0004] This application provides a fastener for securing seat wiring harnesses, which solves the technical problem in the prior art where the wiring harness will loosen when subjected to large tensile forces; and achieves the technical effect of preventing the wiring harness from loosening when subjected to large tensile forces.

[0005] This application provides a fastener for fixing a seat wiring harness, including a wire clamping block and two fixing rods; the wire clamping block is rotatably disposed between the two fixing rods, and the wire clamping block has an elliptical cylindrical structure; the axis of the wire clamping block is perpendicular to the axis of the fixing rods, and the minor axis of the elliptical surface of the wire clamping block is parallel to the axis of the fixing rods; multiple retaining rings are arranged along the axis of the fixing rods, and the wire clamping block is located above the retaining rings.

[0006] Preferably, the bottom of the pressure block is provided with multiple anti-slip grooves coaxially, and the multiple anti-slip grooves are distributed in parallel.

[0007] Preferably, a rotating shaft is coaxially provided on both sides of the pressure block, and a rotating groove corresponding to the rotating shaft is provided on the fixing rod, and the rotating shaft is rotatably disposed in the corresponding rotating groove.

[0008] Preferably, the fastener for fixing the seat wiring harness further includes a support plate, which has two positioning holes, and the positioning holes are corresponding to the fixing rods; the fixing rods pass through the corresponding positioning holes and are snapped onto the support plate by snap-fit ​​rings.

[0009] Preferably, a placement pad is embedded in the support plate, and the placement pad is located between two positioning holes.

[0010] Preferably, the two sides of the placement pad along the long axis of the pressure block are flush with the two sides of the support plate along the long axis of the pressure block.

[0011] Preferably, the placement pad has multiple wire harness grooves.

[0012] Preferably, the direction of the wire harness groove is the same as the long axis direction of the pressure block, and multiple wire harness grooves are distributed sequentially along the axial direction of the pressure block.

[0013] One or more technical solutions provided in this application have at least the following technical effects or advantages:

[0014] The elliptical cylindrical pressure block rotates with two fixed rods: the axis of the pressure block is perpendicular to the axis of the fixed rods, and the minor axis of its elliptical surface is parallel to the axis of the fixed rods. Rotational connection is achieved through a rotating shaft and a T-shaped rotating groove on the fixed rods. Multiple locking rings are provided along the axial direction of the fixed rods for locking and fixing with the seat mounting holes. When the wire harness is under tension, the pressure block rotates with the wire harness displacement. Utilizing the characteristics of the elliptical cylindrical structure, the distance between the pressure block and the mounting plate is reduced, automatically increasing the compressive force on the wire harness and improving its pull-out resistance. This solves the technical problem of loosening when the wire harness is subjected to large tensile forces in existing technologies, achieving the technical effect of preventing loosening when the wire harness is subjected to large tensile forces. Attached Figure Description

[0015] Figure 1 This is a structural schematic diagram of the fastener used to fix the seat wiring harness according to this utility model;

[0016] Figure 2 This is an assembly diagram of the fasteners used to fix the seat wiring harness according to this utility model;

[0017] Figure 3 This is a schematic diagram showing the interaction between the rotating groove and the rotating shaft of the fastener used to fix the seat wiring harness according to this utility model;

[0018] Figure 4 This is a schematic diagram showing the location of the anti-slip groove in the fastener used to fix the seat wiring harness according to this utility model;

[0019] Figure 5 This is a schematic diagram of the support plate structure of the fastener used to fix the seat wiring harness according to this utility model.

[0020] In the diagram: 10. Fixing rod; 11. Snap ring; 12. Rotating groove; 20. Pressure block; 21. Rotating shaft; 22. Anti-slip groove; 30. Bearing plate; 31. Positioning hole; 32. Placement pad. Detailed Implementation

[0021] To facilitate understanding of this utility model, a more comprehensive description of this application will be given below with reference to the accompanying drawings, which show preferred embodiments of the utility model. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to enable a more thorough and complete understanding of the disclosure of this utility model.

[0022] It should be noted that the terms "vertical," "horizontal," "up," "down," "left," "right," and similar expressions used in this article are for illustrative purposes only and do not represent the only possible implementation.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used herein in the description of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention; the term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0024] Example: Figure 1 As shown, the fasteners used to secure the seat wiring harness in this application include a wire clamping block 20 and two fixing rods 10.

[0025] The pressure block 20 is rotatably positioned between the two fixed rods 10, and the pressure block 20 has an elliptical cylindrical structure.

[0026] The axis of the pressure block 20 is perpendicular to the axis of the fixing rod 10, and the minor axis of the elliptical surface of the pressure block 20 is parallel to the axis of the fixing rod 10.

[0027] It should be noted that the major axis, minor axis, and height of the elliptical surface of the pressure block 20 are selected according to actual needs, and will not be detailed here.

[0028] Multiple snap-fit ​​rings 11 are provided on the fixing rod 10 along the axis, and the wire pressing block 20 is located above the snap-fit ​​rings 11.

[0029] It should be noted that there may be 4, 5, 6, 7, or 8 snap-fit ​​rings 11, etc. The specific number is selected according to actual needs, which will not be detailed here.

[0030] It should be explained that the mounting plate of the car seat (i.e., the part inside the seat used to install components and fix the wiring harness) has mounting holes (not shown in the figure), and the mounting holes are in groups of two. The two mounting holes in a group of mounting holes respectively cooperate with the two fixing rods 10 in the fastener of this application; the wiring harness to be fixed is located between the two fixing rods 10 and the mounting plate; the wiring harness located between the two fixing rods 10 can be a single wire or multiple wires (wire harness group); when there are multiple wires, the multiple wires can be close together vertically or horizontally; various specifications of fasteners can be set according to actual needs. The length of the fixing block 20 (i.e., the distance between the two fixing rods 10) and / or the length of the fixing rod 10 are different in fasteners of different specifications, thus adapting to wire harnesses or wire harness groups of different thicknesses; in addition, even for thinner wire harnesses, larger specifications (longer length of the fixing block 20 and / or longer length of the fixing rod 10) of fasteners can also be used, only the pressure between the fixing block 20 and the wire harness needs to be adjusted.

[0031] It should be noted that the mating structure between the snap ring 11 and the mounting hole in this application is a common structure in the prior art. For details, please refer to the corresponding structure on the fixing seat disclosed in Chinese Utility Model Patent No. CN222638042U.

[0032] Understandably, the wire harness is held in place by the clamping block 20 through the cooperation of the fixing rod 10 and the clamping block 20. Since both fixing rods 10 are simultaneously engaged with the seat, the fastener as a whole will not rotate. When the wire harness is pulled, it will undergo slight displacement. During this process, the wire harness will cause the clamping block 20 to rotate slightly. Since the clamping block 20 is an elliptical cylinder, the distance between the clamping block 20 and the mounting plate will decrease after the clamping block 20 rotates, which will increase the compressive force on the wire harness and make it more difficult to pull. The clamping force is automatically increased when the wire harness is pulled, which improves the vibration resistance and pull-out resistance, and enhances the stability of the wire harness fixation.

[0033] It should be noted that the material of the pressure block 20 can be high wear-resistant engineering plastic.

[0034] Optionally, such as Figure 4 As shown, the bottom of the pressure block 20 has multiple anti-slip grooves 22 coaxially formed, and the multiple anti-slip grooves 22 are distributed in parallel.

[0035] In this application, the bottom of the wire clamping block 20 refers to the side of the wire clamping block 20 that contacts the wire harness.

[0036] It should be noted that there can be 2, 3, 4, 5, or 6 anti-slip grooves 22, and the specific number can be selected according to actual needs.

[0037] In addition, the anti-slip groove 22 is used to increase the friction between the wire pressing block 20 and the wire harness. In addition to using the groove method, this application can also use the method of adding anti-slip strips. This method is a common technology in the prior art and will not be described in detail here.

[0038] Optionally, such as Figure 2 and Figure 3 As shown, in another embodiment of this application, a rotating shaft 21 is coaxially provided on both sides of the pressure block 20, and a rotating groove 12 corresponding to the rotating shaft 21 is provided on the fixing rod 10, and the rotating shaft 21 is rotatably disposed in the corresponding rotating groove 12.

[0039] The rotating shaft 21 can be a T-shaped shaft, and the rotating groove 12 is set as a corresponding T-shaped groove so that the rotating shaft 21 will not come out of the rotating groove 12.

[0040] It should be noted that the fit between the T-shaft and the T-slot is a common design in existing technology, and will not be elaborated on here.

[0041] Furthermore, such as Figure 1 and Figure 5 As shown, in another embodiment of this application, the fastener for fixing the seat wiring harness also includes a support plate 30, on which two positioning holes 31 are provided, and the positioning holes 31 are correspondingly provided with the fixing rod 10.

[0042] The fixing rod 10 passes through the corresponding positioning hole 31 and is snapped onto the bearing plate 30 by the snap-fit ​​ring 11.

[0043] The diameter of the positioning hole 31 is not less than the diameter of the mounting hole, and the diameter of the positioning hole 31 is less than the outer diameter of the snap ring 11.

[0044] It should be explained that in this embodiment, the wire harness is located between the carrier plate 30 and the wire pressing block 20. Users can choose to directly insert the fixing rod 10 into the corresponding mounting hole, or they can choose to first insert the fixing rod 10 into the corresponding positioning hole 31 and then insert it into the mounting hole. By adding a carrier plate 30, it can adapt to different usage scenarios, such as unevenness in the positioning position of the wire harness.

[0045] Optionally, such as Figure 5 As shown, a placement pad 32 is embedded on the support plate 30, and the placement pad 32 is located between two positioning holes 31.

[0046] The material of the pad 32 can be rubber.

[0047] Optionally, the two sides of the placement pad 32 along the long axis of the wire pressing block 20 are flush with the two sides of the support plate 30 along the long axis of the wire pressing block 20; the placement pad 32 is provided with a plurality of wire harness grooves, the direction of the wire harness grooves is the same as the long axis of the wire pressing block 20, and the plurality of wire harness grooves are distributed sequentially along the axial direction of the wire pressing block 20.

[0048] It should be noted that there can be 5, 6, 7, 8, or 9 wire harness slots, etc. The specific number and shape are selected according to actual needs, which will not be detailed here.

[0049] It is understandable that the wire harness groove can limit the wire harness to a certain extent, making it difficult for the wire harness to deflect, and further improving the stability of the wire harness fixation. The cross-sectional shape of the wire harness groove can be set to arc shape, or it can be set to V shape, U shape, etc., to adapt to different wire harness cross-sectional shapes (such as circular or flat wire harnesses). The specific setting can be selected according to actual needs, and there is no limitation here.

[0050] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. For those skilled in the art, various modifications and variations are possible with this utility model. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A fastener for securing a seat wiring harness, characterized in that, Includes a wire clamp (20) and two fixing rods (10); The pressure block (20) is rotatably disposed between two fixed rods (10), and the pressure block (20) is an elliptical cylinder structure; The axis of the pressure block (20) is perpendicular to the axis of the fixing rod (10), and the minor axis of the elliptical surface of the pressure block (20) is parallel to the axis of the fixing rod (10). The fixing rod (10) is provided with multiple snap rings (11) along the axis, and the wire pressing block (20) is located above the snap rings (11).

2. The fastener for securing a seat wiring harness as described in claim 1, characterized in that, The bottom of the pressure block (20) is provided with multiple anti-slip grooves (22) on the same axis, and the multiple anti-slip grooves (22) are distributed in parallel.

3. The fastener for securing a seat wiring harness as described in claim 1, characterized in that, The pressure block (20) has a rotating shaft (21) coaxially arranged on both sides. The fixing rod (10) has a rotating groove (12) corresponding to the rotating shaft (21). The rotating shaft (21) is rotatably arranged in the corresponding rotating groove (12).

4. The fastener for securing a seat wiring harness as described in claim 1, characterized in that, The fasteners for fixing the seat harness also include a support plate (30), on which two positioning holes (31) are provided, and the positioning holes (31) are corresponding to the fixing rod (10); The fixing rod (10) passes through the corresponding positioning hole (31) and is snapped onto the bearing plate (30) by the snap-fit ​​ring (11).

5. The fastener for securing a seat wiring harness as described in claim 4, characterized in that, The support plate (30) is provided with a placement pad (32), which is located between two positioning holes (31).

6. The fastener for securing a seat wiring harness as described in claim 5, characterized in that, The placement pad (32) is flush with the two sides of the bearing plate (30) along the long axis of the pressure block (20) on both sides.

7. The fastener for securing a seat wiring harness as described in claim 6, characterized in that, The placement pad (32) has multiple wire harness slots.

8. The fastener for securing a seat wiring harness as described in claim 7, characterized in that, The direction of the wire harness groove is the same as the long axis direction of the pressure block (20), and multiple wire harness grooves are distributed sequentially along the axial direction of the pressure block (20).

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