Automobile wire harness fixing buckle

Abstract

This invention belongs to the field of automotive wiring harness connection technology, and particularly relates to an automotive wiring harness fixing clip, including a clip support plate, a locking structure, a locking kit, and a double-tooth cable tie. The locking structure is disposed at the lower end of the clip support plate and is used to form optional outward expansion locking or inward clamping fixing with the vehicle body mounting hole to adapt to different installation spaces. The locking kit is slidably and lockably disposed on the clip support plate and is used to accommodate and guide the wiring harness. The double-tooth cable tie cooperates with the locking kit to fasten the wiring harness passing through the locking kit. The position and orientation of the locking kit on the clip support plate in this invention are adjustable, and it can be fixed in various layouts such as coaxial or parallel arrangement, thereby realizing multi-point contact fixing of single-strand wiring harnesses or integrated classification fixing of multi-strand wiring harnesses.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of automobile wiring harness connection, and particularly relates to a fixing buckle for automobile wiring harness. BACKGROUND

[0002] In the field of automobile manufacturing, wiring harness is a key component of a vehicle, responsible for connecting and transmitting signals and power of various electrical components. In order to ensure that the wiring harness can work stably and reliably during driving, especially in complex working conditions such as vibration and impact, a large number of fixing buckles must be used to firmly fix the wiring harness on the vehicle body sheet metal or bracket, preventing it from shaking, wearing and causing short circuit, open circuit or functional failure.

[0003] At present, the widely used automobile wiring harness fixing buckles on the market are mostly of one-piece structure, and their working principle is usually to realize fixation by cooperating the barbs or locking mechanisms on the buckle body with the mounting holes on the vehicle body, and then to constrain the wiring harness by the annular binding belt or the clamping groove of the buckle. Although this kind of traditional buckle has simple structure and low cost, its inherent design has obvious limitations, which has gradually failed to meet the increasingly complex wiring requirements of modern vehicles. The current prominent problems mainly lie in the following aspects: 1. Single direction and effect of clamping: the locking mechanisms (such as barbs) of most existing fixing buckles are usually designed to be inserted and installed only from a specific direction (usually perpendicular to the surface of the sheet metal). Once installed, the orientation of the buckle body is fixed and cannot be flexibly adjusted according to the actual wiring path. When the wiring harness needs to bypass obstacles or be arranged in a non-vertical direction, the flexibility and rationality of wiring are greatly limited, often leading to excessive bending of the wiring harness.

[0004] 2. Single-point contact, insufficient stability: the traditional buckle usually has limited point or line contact with the mounting hole, and the locking force is concentrated in a small area. In the long-term vibration environment of the vehicle, this single-point contact method is prone to stress concentration, causing wear, plastic deformation or even fatigue fracture of the sheet metal hole or the buckle itself, thereby reducing the reliability and durability of the fixation.

[0005] 3. Single-wire harness fixation, low integration: a traditional buckle is usually designed to fix only one strand (bundle) of wiring harness. When multiple strands of wiring harness (such as power lines, signal lines, CAN bus, etc. that need to be arranged separately) need to be fixed at the same location, multiple buckles must be installed side by side; this not only increases the number of parts and assembly time, leading to cost increase, but also occupies more vehicle body space, making the wiring layout crowded and chaotic, which is not conducive to lightweight and modular design.

[0006] In summary, the existing automobile wire harness fixing buckle has poor adaptability due to the inherent defects of unadjustable clamping direction, single contact point and single strand fixation, and has been difficult to meet the development trend of modern automobile high-density, multi-direction and modular wiring. Therefore, the present application provides an automobile wire harness fixing buckle. SUMMARY

[0007] In order to solve the above problems, the present application provides an automobile wire harness fixing buckle for solving the problems mentioned in the background art.

[0008] In order to achieve the above-mentioned purpose, the present application provides the following technical scheme: the present application provides an automobile wire harness fixing buckle, which comprises a buckle support plate, a clamping structure, a clamping assembly and a double-tooth strap, the clamping structure is arranged at the lower end of the buckle support plate, and is used to form two fixing modes of outward expansion clamping or inward clamping to adapt to different installation spaces; the clamping assembly is slidably arranged along the length direction of the buckle support plate and can be fixed at multiple different positions to accommodate and guide the wire harness; the double-tooth strap cooperates with the clamping assembly to tighten the wire harness passing through the clamping assembly; wherein the position and orientation of the clamping assembly on the buckle support plate can be adjusted to be fixed in multiple layout modes of coaxial or parallel arrangement, so as to realize the multi-point contact fixation of single strand wire harness or the integrated classification fixation of multiple strand wire harness.

[0009] According to an advantageous embodiment, the upper end face of the buckle support plate is provided with a limiting groove extending along the length direction thereof, the groove wall of the limiting groove is provided with a locking groove, and the lower end of the clamping assembly is connected with a limiting part which is slidably arranged in the limiting groove and fixed in position by the locking groove.

[0010] According to an advantageous embodiment, the limiting part comprises a square limiting block, a plurality of lock tongue plates and an unlocking mechanism, the square limiting block is slidably arranged inside the limiting groove, the plurality of lock tongue plates are movably arranged on the side wall of the square limiting block by springs, and the unlocking mechanism is arranged on the clamping assembly and connected with the lock tongue plates; the position of the square limiting block in the limiting groove is adjusted by operating the unlocking mechanism to make the lock tongue plates retract; after being released, the lock tongue plates are ejected and locked with the locking groove of the side wall of the limiting groove.

[0011] According to an advantageous embodiment, the clamping structure comprises two sliding seats slidably arranged at the lower end of the buckle support plate, two L-shaped claws respectively clamped at the lower end of the two sliding seats, and a bidirectional screw rod rotatably arranged on the buckle support plate, two threaded segments of the bidirectional screw rod are respectively threadedly connected with the two sliding seats; the two L-shaped claws are driven to approach or move away from each other by rotating the bidirectional screw rod, so as to switch the two modes of outward expansion clamping or inward clamping.

[0012] According to an advantageous embodiment, the clamping sleeve comprises a guide sleeve, and two parallel arc-shaped grooves are arranged on the guide sleeve, and the sidewalls of the two arc-shaped grooves are respectively provided with clamping grooves for clamping the double-toothed cable tie.

[0013] According to an advantageous embodiment, the guide sleeve is further provided with a lashing hole and a clamping claw arranged in the lashing hole through a torsional spring; one end of the double-toothed cable tie is clamped in the clamping groove, and the other end of the double-toothed cable tie passes through the lashing hole and is unidirectionally locked by the clamping claw.

[0014] Compared with the prior art, the automobile wire harness fixing buckle provided by the embodiment of the present application has the following beneficial effects: 1. The clamping sleeve of the present application can slide and lock in the limiting groove of the buckle support plate, allowing the installer to freely adjust the angle (coaxial or parallel) and position of the guide sleeve according to the actual wiring path, making the wire harness arrangement more natural, effectively avoiding the problem of excessive bending of the wire harness due to single fixing direction, and greatly enhancing the flexibility of wiring and adaptability to complex vehicle body environment.

[0015] 2. The present application improves the reliability of wire harness fixation through two fixation mechanisms; first, the clamping structure adopts a sliding seat driven by a bidirectional screw and an L-shaped claw design, which can flexibly select the mode of outward expansion clamping or inward clamping fixation according to the installation structure of the vehicle body; second, for the wire harness itself, the coaxial fixation mode can achieve multi-point contact fixation on a single wire harness, dispersing the traditional single-point concentrated stress to multiple support points, effectively reducing the risk of wear, plastic deformation and fatigue fracture of the metal hole and the buckle itself in the continuous vibration environment of the vehicle, thereby greatly improving the stability of the fixed connection and the durability of the entire wire harness system.

[0016] 3. Multiple clamping sleeves can be installed in parallel on a single buckle support plate of the present application, which can integrate and fix multiple different types of wire harnesses (such as power lines, signal lines, etc.) at the same installation point without the need for parallel installation of multiple independent buckles; and different wires in a single wire harness can be classified and bundled again through multiple double-toothed cable ties in each guide sleeve, effectively avoiding the interference between different signal types of wire harnesses, achieving integration while ensuring the orderliness and functionality of wiring. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a front view of the present application.

[0018] Figure 2 is a clamping structure outward expansion clamping state diagram in the present application. Figure 1

[0019] Figure 3 is a left side view in the present application. Figure 2

[0020] Figure 4 is a front view of the present application​​Figure 2 right side view in the figure.

[0021] Figure 5 coaxial state diagram of the plurality of clamping sleeve assemblies of the present application.

[0022] Figure 6 perspective view of the plurality of clamping sleeve assemblies in the coaxial state.

[0023] Figure 7 perspective view of the clamping sleeve assembly.

[0024] In the figure, reference numerals: 1, buckle support plate; 11, limiting groove; 12, guide groove; 2, clamping structure; 21, sliding seat; 22, L-shaped claw; 23, bidirectional screw; 3, clamping sleeve assembly; 31, guide sleeve; 311, arc-shaped groove; 312, clamping groove; 313, binding hole; 314, clamping claw; 32, support column; 33, square limiting block; 34, lock tongue plate; 35, pressing column; 4, double-toothed binding tape. DETAILED DESCRIPTION

[0025] The following will be described in detail with reference to the accompanying drawings Figure 1 - the accompanying drawings Figure 7 The present application will be further described in detail.

[0026] Please refer to Figure 1 , Figure 6 and Figure 7 , a car wire harness fixing buckle, comprising a buckle support plate 1, a clamping structure 2, a clamping sleeve assembly 3 and a double-toothed binding tape 4, the upper end face of the buckle support plate 1 is provided with a limiting groove 11 extending along the length direction thereof; the groove wall of the limiting groove 11 is provided with a lock groove, the clamping structure 2 is arranged at the lower end of the buckle support plate 1, used for external expansion clamping or internal clamping fixing between the vehicle body mounting hole; the clamping sleeve assembly 3 is adjustably arranged inside the limiting groove 11 of the buckle support plate 1, used for guiding the car wire harness; the clamping sleeve assembly 3 comprises a guide sleeve 31; the guide sleeve 31 is provided with two parallel arc-shaped grooves 311 communicating with the inside of the guide sleeve 31, the side walls of the two arc-shaped grooves 311 are each provided with a clamping groove 312, and the clamping grooves 312 on the two arc-shaped grooves 311 are diagonally symmetrically arranged; the other side of the guide sleeve 31 opposite to the arc-shaped grooves 311 is further provided with a binding hole 313; the double-toothed binding tape 4 is clamped and arranged inside the clamping groove 312, the other end of the double-toothed binding tape 4 penetrates through the binding hole 313 and is fixed by a clamping claw 314, and the clamping claw 314 is arranged inside the binding hole 313 by a torsional spring.

[0027] When the car wire harness is fixed by using the fixing buckle, first, the specific installation mode of the clamping structure 2 is adjusted according to the specific space of the vehicle body mounting hole (external expansion clamping (see Figure 2 ) or internal clamping fixing (see Figure 1Next, depending on the required method of fixing the wire harness, several guide sleeves 31 are fitted onto the outside of the same or multiple strands of wire harness, and then coaxial arrangement is adopted (see...). Figure 5 ) or parallel (see Figure 2 The wire harness is locked onto the buckle support plate 1 in a certain way. The distance between two adjacent guide sleeves 31 is adjusted. Then, depending on whether the wire harness inside a single guide sleeve 31 needs to be divided and fixed, an appropriate number of double-tooth cable ties 4 are installed in the slot 312. The wire harness is tightened by the double-tooth cable ties 4 and then locked by the claw 314.

[0028] When adjusting the tightness of the double-tooth cable tie 4 after securing the wire harness, if the binding is too loose, the other end of the double-tooth cable tie 4 can be pulled directly. Since the claw 314 driven by the torsion spring is always locked in one direction with the tooth groove of the double-tooth cable tie 4, the double-tooth cable tie 4 will become tighter the more it is pulled. If the binding is too tight, a special tool (such as a U-shaped insert) can be inserted into the binding hole 313 to make the claw 314 rotate in the opposite direction and disengage from the tooth groove of the double-tooth cable tie 4. Then the tightness of the double-tooth cable tie 4 can be adjusted.

[0029] See Figure 2 The lower end face of the buckle support plate 1 is provided with a guide groove 12 extending along its length direction. The buckling structure 2 includes two slide blocks 21 slidably disposed inside the guide groove 12. The lower end of the slide block 21 is engaged with an L-shaped claw 22. The lower end face of the buckle support plate 1 is also rotatably provided with a bidirectional screw 23. The two threaded sections of the bidirectional screw 23 are respectively threadedly connected to the two slide blocks 21.

[0030] Since the L-shaped claw 22 is engaged at the lower end of the slide block 21, when adjusting the locking structure 2 to achieve outward locking or inward clamping fixation according to the specific space size of the vehicle body mounting hole, it is only necessary to pull out the L-shaped claw 22 to adjust its installation method. Specifically, when in the outward locking state, the horizontal sections of the two L-shaped claws 22 are installed far apart from each other; when in the inward clamping fixation state, the horizontal sections of the two L-shaped claws 22 are installed close together. After the two L-shaped claws 22 are aligned with the vehicle body mounting hole, it is only necessary to rotate the bidirectional screw 23 to move the two L-shaped claws 22 away from or close together. The locking structure 2 can reasonably select the installation method to fix the buckle support plate 1 according to the installation space, and has strong adaptability. The locking installation method between the L-shaped claw 22 and the slide block 21 is existing technology.

[0031] See Figure 3 , Figure 4 and Figure 7The clamping sleeve assembly 3 is slidably arranged in the limiting groove 11 through the limiting part at the lower end. The limiting part includes a supporting column 32 arranged on the outer wall of the lower end of the guide sleeve 31, and a square limiting block 33 arranged at the lower end of the supporting column 32. The square limiting block 33 is slidably arranged in the interior of the limiting groove 11, and the four side walls of the square limiting block 33 are movably provided with a lock tongue plate 34 through a spring. A pressing column 35 is arranged on the supporting column 32, and the pressing column 35 and the lock tongue plate 34 are connected through a steel wire rope. In this embodiment, the pressing column 35, the supporting column 32 and the steel wire rope together constitute an unlocking mechanism for driving the lock tongue plate 34 to extend and retract.

[0032] When installing the clamping sleeve assembly 3, all the lock tongue plates 34 are retracted into the square limiting block 33 by operating the pressing column 35, and then the square limiting block 33 is slidably inserted into the limiting groove 11 according to the installation requirements. After adjusting the position of the square limiting block 33 in the limiting groove 11, the pressing column 35 is released, so that the lock tongue plate 34 close to the limiting groove 11 is inserted into the lock slot arranged at the corresponding position of the side wall of the limiting groove 11, thereby completing the position fixation of the clamping sleeve assembly 3 on the buckle supporting plate 1.

[0033] The square limiting block 33 can be matched with the limiting groove 11 at will, so that the coaxial or parallel arrangement of the plurality of guide sleeves 31 can be adjusted according to the installation requirements. It should be noted that when the coaxial arrangement is adopted, the single harness is usually fixed, and the coaxial arrangement can realize the multi-point contact fixation of the single harness, thereby avoiding the problems of abrasion, breakage and the like caused by the shaking of the outer harness of the contact point due to the stress concentration of the current single-point contact fixation mode. When the parallel arrangement is adopted, a plurality of harnesses are usually fixed, and the plurality of buckles are not required when the plurality of harnesses are fixed at the same position, thereby greatly reducing the number of parts and the assembly time.

[0034] It should be further noted that no matter the parallel arrangement or the coaxial arrangement, the harness in the single guide sleeve 31 can be classified and fixed again through the winding fixation of the double-toothed strap 4 according to the types of the harnesses (such as power lines, signal lines, CAN bus and the like) in the interior. The modular installation mode of the clamping sleeve assembly 3 has flexible clamping direction, which not only greatly improves the reliability and durability of the harness fixation, but also reduces the number of buckles and the occupied installation space, thereby effectively avoiding the signal interference caused by the unified fixation of different types of harnesses.

[0035] In the description of the present application, it is to be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the purpose of facilitating the description of the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0036] In addition, the terms "first", "second", "one", "two" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second", "one", "two" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "multiple" is at least two, for example, two, three, etc., unless otherwise explicitly specified and limited.

[0037] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0038] The embodiments of the specific embodiment are the preferred embodiments of the present application, and are not limited to the protection scope of the present application, therefore, any equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A car wiring harness fixing clip, characterized in that, include: Buckle support plate; The locking structure is located at the lower end of the buckle support plate and is used to form two fixing modes with the vehicle body mounting holes: outward expansion locking and inward clamping, to adapt to different installation spaces. At least one locking kit is slidably disposed along the length of the locking plate and can be fixed in multiple different positions for accommodating and guiding the wire harness; Double-tooth cable ties, which cooperate with the locking kit, are used to secure wire harnesses passing through the locking kit; The position and orientation of the fastening kit on the buckle support plate can be adjusted to fix it in various layouts such as coaxial or parallel arrangement, thereby realizing multi-point contact fixing of single wire harness or integrated classification fixing of multi-wire harness.

2. The automotive wiring harness fixing clip according to claim 1, characterized in that, The upper end face of the buckle support plate is provided with a limiting groove extending along its length direction. The groove wall of the limiting groove is provided with a locking groove. The lower end of the fastening kit is connected to a limiting component, which is slidably set in the limiting groove through the limiting component and fixed in position by the locking groove.

3. The automotive wiring harness fixing clip according to claim 2, characterized in that, The limiting component includes: A square limiting block is slidably disposed inside the limiting groove; Multiple locking tongue plates are movably mounted on the side wall of the square limiting block via springs; An unlocking mechanism is provided on the locking assembly and connected to the locking tongue plate; By operating the unlocking mechanism, the locking tongue plate is retracted to adjust the position of the square limiting block within the limiting groove; after being released, the locking tongue plate pops out and engages with the locking groove on the side wall of the limiting groove to lock.

4. The automotive wiring harness fixing clip according to claim 1, characterized in that, The locking structure includes: Two sliding blocks are slidably disposed at the lower end of the buckle support plate; Two L-shaped claws are detachably engaged with the lower ends of the two slide blocks; A bidirectional screw is rotatably mounted on the buckle support plate, and its two threaded sections are respectively threadedly connected to the two slide blocks; The two L-shaped claws are driven to move closer or further apart by rotating the bidirectional screw, thereby switching between two modes: external expansion clamping and internal clamping fixation.

5. The automotive wiring harness fixing clip according to claim 1, characterized in that, The fastening kit includes a guide sleeve with two parallel arc-shaped grooves. The sidewalls of the two arc-shaped grooves are provided with slots for engaging the double-tooth cable ties.

6. The automotive wiring harness fixing clip according to claim 5, characterized in that, The guide sleeve is also provided with a binding hole and a claw that is set inside the binding hole by a torsion spring; one end of the double-tooth cable tie is engaged in the slot, and the other end passes through the binding hole and is locked in one direction by the claw.

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