Composite wire harness and tube bundle fixing device

Abstract

A composite wire harness and tube bundle fixing device comprises a mounting base and a tube bundle fixing base, the tube bundle fixing base is buckled on the mounting base, a ribbon connecting part is fixedly arranged on the outer surface of the upper end of the tube bundle fixing base, the vertical section of the ribbon connecting part is in an inverted U shape, the upper end of the ribbon connecting part is in an arc shape, and the heights of the two sides of the upper end of the ribbon connecting part are different. Two first limiting blocks are fixedly arranged on the inner side surface of the upper end of the ribbon connecting part and are oppositely arranged, a ribbon limiting groove is formed between the two first limiting blocks, and the surface of the ribbon connecting part is an arc-shaped surface and can adapt to the radian of the ribbon during binding, so that the contact area between the ribbon connecting part and the ribbon is increased; according to the cable tie, the stress of the cable tie connecting part is reduced, the cable tie connecting part is prevented from being damaged by pulling, meanwhile, the two side edges of the cable tie connecting part are not in direct contact with the cable tie, the position of the cable tie is effectively limited by using the first limiting block, and the cable tie is prevented from being damaged by shaking and friction.

Description

Technical Field

[0001] The utility model relates to the technical field of tube bundle fixing, in particular to a composite wire harness and tube bundle fixing device. Background Art

[0002] With the development of heavy-duty commercial vehicle technology and changes in market demand, the layout of vehicle chassis oil circuits, circuit harnesses, air pipes, etc. is moving towards compactness and integration. Under the same configuration of vehicle wheelbase, the more compact the chassis layout and the higher the degree of integration, the larger the available space of the vehicle chassis.

[0003] At present, a wiring harness fixing bracket for automobiles (publication number CN204775064U) has appeared, which includes a wiring harness fixing unit and a mounting base. A cable tie groove is provided at one end of the wiring harness fixing unit, and the other end of the wiring harness fixing unit is connected to one end of the mounting base, and the other end of the mounting base is connected to the vehicle frame. The wiring harness fixing unit includes a buckle, and a flange is provided on the upper edge of the mounting base. The detachable installation between the wiring harness fixing unit and the mounting base is achieved through the cooperation of the flange and the buckle. The installation and disassembly are convenient, and it can adapt to the direction of the wiring harness in any direction.

[0004] The existing wiring harness fixing bracket has a cable tie groove of a U-shaped frame structure. When in use, the cable tie is inserted and bypassed around the cable tie groove. The inner surface of the cable tie groove (the surface in contact with the cable tie) is a horizontal plane, and the contact area with the cable tie is small. The two sides of the cable tie groove will directly contact the cable tie, and the wiring harness fixing bracket does not contain a cable tie limiting structure. During the operation of the vehicle, the cable tie will reciprocate along the axial direction of the wiring harness. If used for a long time, the cable tie will be broken and damaged due to friction with the two sides of the cable tie groove, and the cable tie is very likely to damage the cable tie groove. Utility Model Content

[0005] In order to solve the technical problem in the above-mentioned background technology that the inner surface of the existing wire harness fixing bracket is a horizontal plane, which causes its two side edges to directly contact with the cable tie, and long-term use may cause the cable tie to wear and break or the cable tie groove to be damaged, the utility model provides a composite wire harness and tube bundle fixing device.

[0006] The technical solution of this utility model is as follows:

[0007] The utility model provides a composite wire harness and tube bundle fixing device, comprising: a mounting seat and a tube bundle fixing seat, the tube bundle fixing seat is buckled on the mounting seat, the lower end of the mounting seat is connected to the vehicle frame, the upper end of the mounting seat is clamped with the tube bundle fixing seat, a tie connecting part is fixedly arranged on the outer surface of the upper end of the tube bundle fixing seat, the vertical cross section of the tie connecting part is an inverted U-shape, the upper end of the tie connecting part is arc-shaped, and the heights of the two sides of the upper end of the tie connecting part are different, a first limit block is fixedly arranged on the inner surface of the upper end of the tie connecting part, and the first limit block There are two blocks which are arranged opposite to each other, a cable tie limiting groove is provided between the two first limiting blocks, the surface of the cable tie connecting part is an arc-shaped surface, which can adapt to the curvature of the cable tie when it is tied, thereby increasing the contact area between the cable tie connecting part and the cable tie, reducing the force on the cable tie connecting part, and avoiding the cable tie connecting part from being pulled apart. At the same time, the two side edges of the cable tie connecting part do not directly contact the cable tie, and the use of the first limiting block can effectively limit the position of the cable tie, avoid the cable tie from shaking in the cable tie connecting part, and prevent the cable tie from being damaged by shaking and friction.

[0008] Preferably, a mounting hole is provided in the middle of the mounting seat, a bolt is installed in the mounting hole, a flange is fixedly provided at the upper end of the mounting seat, two first openings oppositely arranged are provided on the side of the tube bundle fixing seat, a buckle is fixedly provided in the first opening, and the upper end of the buckle abuts against the lower surface of the flange, so that quick installation and fixation between the mounting seat and the tube bundle fixing seat can be achieved. Compared with the integrated structure, the combined use method can be more convenient to adapt to different working scenarios.

[0009] Preferably, the width of the first opening is greater than the width of the buckle, and the height of the first opening is greater than the height of the buckle, so as to facilitate the operation and use of the buckle.

[0010] Preferably, the distance between the two buckles is the same as the outer diameter of the mounting seat, and the distance between the two buckles is smaller than the outer diameter of the flange, so that the two buckles fit on the outer wall of the mounting seat to prevent the tube bundle fixing seat from shaking.

[0011] Preferably, at least two cable tie connections are provided, and adjacent cable tie connections are staggered so that different tube bundles, wire harnesses and cables can be fastened and fixed, and adjacent cable ties do not interfere with each other.

[0012] Preferably, two adjacent tie connection parts are fixedly connected by a connection plate, and the connection plate is fixedly arranged on the upper end of the tube bundle fixing seat to improve the connection strength between the tie connection parts and between the tie connection parts and the tube bundle fixing seat.

[0013] Preferably, the width of the cable tie limiting groove is the same as the width of the cable tie, which effectively limits the position of the cable tie and avoids shaking and wear of the cable tie.

[0014] Preferably, a second opening is provided at the upper end of the tube bundle fixing seat, and the second opening is located directly below the cable tie connecting portion to facilitate insertion of the cable tie.

[0015] Preferably, a plurality of second limit blocks are fixedly provided on the inner wall of the tube bundle fixing seat, the second limit blocks are adjacent to the upper end of the tube bundle fixing seat, and the second limit blocks are arranged at intervals along the circumferential direction of the tube bundle fixing seat.

[0016] Preferably, the second limit block abuts against the flange at the upper end of the mounting seat, which effectively limits the shaking between the tube bundle fixing seat and the mounting seat and ensures the installation stability.

[0017] It can be seen from the above technical solutions that the advantages of the utility model are:

[0018] 1. The surface of the cable tie connection part is an arc-shaped surface, which can adapt to the curvature of the cable tie when it is tied, increase the contact area between the cable tie connection part and the cable tie, reduce the force on the cable tie connection part, and avoid the cable tie connection part from being pulled and damaged. At the same time, the two sides of the cable tie connection part do not directly contact the cable tie. With the use of the first limit block, the position of the cable tie is effectively limited, the cable tie is prevented from shaking in the cable tie connection part, and the cable tie is prevented from being damaged by shaking and friction.

[0019] 2. A second opening is provided at the upper end of the tube bundle fixing seat. The second opening is located directly below the cable tie connection portion to facilitate insertion of the cable tie.

[0020] 3. A plurality of second limit blocks are fixedly provided on the inner wall of the tube bundle fixing seat. The second limit blocks are adjacent to the upper end of the tube bundle fixing seat. The second limit blocks abut against the flange of the upper end of the mounting seat. With the use of the buckle, the shaking between the tube bundle fixing seat and the mounting seat is effectively limited, thereby ensuring the installation stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solution of the utility model, the drawings required for use in the description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 This is a schematic diagram of the installation and use structure of the composite tube bundle fixing device according to one or more embodiments of the utility model;

[0023] Figure 2 It is a schematic diagram of the structure of the mounting seat and the tube bundle fixing seat according to one or more embodiments of the present utility model;

[0024] Figure 3 It is a schematic structural diagram of a mounting base according to one or more embodiments of the present utility model;

[0025] Figure 4It is a schematic diagram of the three-dimensional structure of the tube bundle fixing seat in a top view according to one or more embodiments of the present invention;

[0026] Figure 5 It is a schematic diagram of the three-dimensional structure of the tube bundle fixing seat according to one or more embodiments of the present invention from a front view perspective;

[0027] Figure 6 It is a schematic cross-sectional structure diagram of a composite tube bundle fixing device according to one or more embodiments of the present invention;

[0028] The components represented by the reference numerals in the figure are:

[0029] 1. Frame; 2. Mounting seat; 3. Tube bundle fixing seat; 4. Bolt; 5. Nut; 6. Mounting hole; 7. Flanging; 8. Buckle; 9. Cable tie connecting part; 10. First opening; 11. Second opening; 12. First limit block; 13. Connecting plate; 14. Second limit block. DETAILED DESCRIPTION

[0030] In order to make the purpose, features and advantages of the utility model more obvious and easy to understand, the technical scheme of the utility model will be clearly and completely described below in conjunction with the drawings in the specific embodiment. Obviously, the embodiments described below are only part of the embodiments of the utility model, not all of them. Based on the embodiments in this patent, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this patent.

[0031] In a typical implementation of the present invention, Figure 1-Figure 6 As shown, a composite wire harness and tube bundle fixing device is proposed, comprising: a mounting seat 2 and a tube bundle fixing seat 3, wherein the mounting seat 2 is fixedly mounted on the frame 1 by bolts 4, one end of the mounting seat 2 is in contact with the frame 1, and the other end of the mounting seat 2 is fixedly provided with a flange 7, the tube bundle fixing seat 3 is buckled on the mounting seat 2, and buckles 8 are provided on both sides of the tube bundle fixing seat 3, as shown in FIG. Figure 2 As shown, the tube bundle fixing seat 3 presses against the flange 7 of the mounting seat 2 through the buckle 8 to achieve direct position-limiting fixation between the mounting seat 2 and the tube bundle fixing seat 3 .

[0032] like Figure 3 As shown, a mounting hole 6 is opened in the middle position of the mounting seat 2, and the mounting hole 6 passes through the mounting seat 2 for installing a bolt 4. The mounting seat 2 is fixedly connected to the frame 1 by the bolt 4, and the bolt 4 assembles and fixes the fixing seat 2 and the frame 1 together through the nut 5.

[0033] First openings 10 are opened on both sides of the tube bundle fixing seat 3, and the clips 8 are fixedly arranged in the first openings 10. Specifically, a clip 8 is fixedly arranged in each first opening 10, and the bottom of the clip 8 is L-shaped. The lower end of the clip 8 is fixedly connected to the tube bundle fixing seat 3, and the upper end of the clip 8 is a plane for abutting the flange 7 of the mounting seat 2.

[0034] The width of the first opening 10 is greater than the width of the buckle 8, and the height of the first opening 10 is greater than the height of the buckle 8. The distance between the two oppositely arranged buckles 8 is the same as the outer diameter of the mounting seat 2, and the distance between the two oppositely arranged buckles 8 is smaller than the outer diameter of the flange 7, so that the two buckles 8 fit on the outer wall of the mounting seat 2 to prevent the tube bundle fixing seat 3 from shaking.

[0035] At least two tie connection parts 9 are fixedly provided at the upper end of the tube bundle fixing seat 3. Figure 4-Figure 5 As shown, adjacent cable tie connecting parts 9 are staggered to facilitate the insertion and installation of the cable tie. The vertical cross-section of the cable tie connecting part 9 is an inverted U-shape, and the upper end of the cable tie connecting part 9 is arc-shaped, and the heights of the two sides of the upper end of the cable tie connecting part 9 are different, so that its surface is an arc-shaped surface to adapt to the curvature of the cable tie when it is tied, thereby increasing the contact area between the cable tie connecting part 9 and the cable tie, reducing the force on the cable tie connecting part 9, and avoiding the cable tie connecting part 9 from being pulled. At the same time, since the upper end of the cable tie connecting part 9 is an arc-shaped surface, it can adapt to the curvature of the cable tie when it is tied, so that the two side edges of the cable tie connecting part 9 do not directly contact the cable tie, thereby preventing the cable tie from shaking and rubbing and being damaged.

[0036] Two adjacent tie connection parts 9 are fixedly connected by a connection plate 13 , and the connection plate 13 is fixedly arranged on the upper end of the tube bundle fixing seat 3 , so as to improve the connection strength between the tie connection parts 9 and between the tie connection parts 9 and the tube bundle fixing seat 3 .

[0037] In order to further limit the shaking of the cable tie and to increase the service life of the cable tie, two first limiting blocks 12 arranged opposite to each other are fixedly provided on the inner surface of the upper end of the cable tie connecting portion 9. Figure 6 As shown, the first limit block 12 is an arc-shaped block, and two first limit blocks 12 are fixedly provided in each tie connection part 9, and a tie limit groove is provided between the two first limit blocks 12. The distance between the two first limit blocks 12 (i.e., the width of the tie limit groove) is the same as the width of the tie, thereby effectively limiting the position of the tie and preventing the tie from shaking in the tie connection part 9.

[0038] It is understandable that the space between the first limit block 12 and the vertical side wall of the adjacent tie connection part 9 can also be used to place tie ties, so as to achieve the purpose of simultaneously arranging and installing multiple tie ties in an orderly manner on one tie connection part 9, so as to improve the fixing stability of the lines and tube bundles.

[0039] The upper end of the tube bundle fixing seat 3 is also provided with a second opening 11, which is located directly below the cable tie connection portion 9, and the second opening 11 corresponds to the cable tie connection portion 9 one by one. The two end surfaces of the second opening 11 are inclined surfaces (also can be understood as slopes) to facilitate the insertion of the cable tie (such as Figure 5 As shown, since the upper end of the cable tie connection part 9 is arc-shaped, if the second opening 11 is not provided, the distance between the lowest end of the cable tie connection part 9 and the upper end surface of the tube bundle fixing seat 3 will be small, making it inconvenient for the cable tie to pass through).

[0040] like Figure 6 As shown, a plurality of second limit blocks 14 are fixedly provided on the inner wall of the tube bundle fixing seat 3, the second limit blocks 14 are adjacent to the upper end of the tube bundle fixing seat 3, and the second limit blocks 14 are arranged at intervals along the circumferential direction of the tube bundle fixing seat 3 to abut against the flange 7 at the upper end of the mounting seat 2, thereby effectively limiting the shaking between the tube bundle fixing seat 3 and the mounting seat 2 and ensuring the installation stability.

[0041] The specific working principle is as follows: first, the mounting base 2 is fixedly mounted at a designated position of the vehicle frame 1 by means of the bolt 4, and then the tube bundle fixing base 3 is buckled onto the mounting base 2, the inner surface of the buckle 8 is fitted with the outer surface of the mounting base 2, and at the same time, the upper end of the buckle 8 is in contact with the lower surface of the flange 7 on the mounting base 2, and in addition, the end of the flange 7 is in contact with the second limit block 14 in the tube bundle fixing base 3, so as to realize the fixed connection between the mounting base 2 and the tube bundle fixing base 3;

[0042] Pass the cable tie through the cable tie connection part 9, and make the cable tie be located in the cable tie limiting groove between two adjacent first limiting blocks 12 or between the first limiting block 12 and the vertical side wall of the cable tie connection part 9 to limit the position of the cable tie, and finally use the cable tie to bundle the lines, pipe bundles, etc.

[0043] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A composite wire harness and tube harness fixing device, comprising: The mounting seat (2) and the tube bundle fixing seat (3), the tube bundle fixing seat (3) is buckled on the mounting seat (2), the lower end of the mounting seat (2) is connected to the frame (1), and the upper end of the mounting seat (2) is clamped with the tube bundle fixing seat (3), characterized in that a tie connection part (9) is fixedly provided on the outer surface of the upper end of the tube bundle fixing seat (3), the vertical cross-section of the tie connection part (9) is an inverted U-shape, the upper end of the tie connection part (9) is arc-shaped, and the heights of the two sides of the upper end of the tie connection part (9) are different, and a first limit block (12) is fixedly provided on the inner surface of the upper end of the tie connection part (9), two first limit blocks (12) are provided and arranged opposite to each other, and a tie limit groove is provided between the two first limit blocks (12).

2. A composite wire harness and tube bundle fixing device according to claim 1, characterized in that: A mounting hole (6) is provided at the middle position of the mounting seat (2), a bolt (4) is installed in the mounting hole (6), a flange (7) is fixedly provided at the upper end of the mounting seat (2), two first openings (10) arranged opposite to each other are provided at the side of the tube bundle fixing seat (3), a buckle (8) is fixedly provided in the first opening (10), and the upper end of the buckle (8) is in contact with the lower surface of the flange (7).

3. A composite wire harness and tube harness fixing device according to claim 2, characterized in that: The width of the first opening (10) is greater than the width of the buckle (8), and the height of the first opening (10) is greater than the height of the buckle (8).

4. A composite wire harness and tube harness fixing device according to claim 2, characterized in that: The distance between the two buckles (8) is the same as the outer diameter of the mounting seat (2), and the distance between the two buckles (8) is smaller than the outer diameter of the flange (7).

5. A composite wire harness and tube bundle fixing device according to claim 1, characterized in that: At least two cable tie connection parts (9) are provided, and adjacent cable tie connection parts (9) are staggered.

6. A composite wire harness and tube harness fixing device according to claim 5, characterized in that: Two adjacent tie connection parts (9) are fixedly connected via a connection plate (13), and the connection plate (13) is fixedly arranged on the upper end of the tube bundle fixing seat (3).

7. A composite wire harness and tube harness fixing device according to claim 1, characterized in that: The width of the cable tie limiting groove is the same as the width of the cable tie.

8. A composite wire harness and tube harness fixing device according to claim 1, characterized in that: A second opening (11) is provided at the upper end of the tube bundle fixing seat (3), and the second opening (11) is located directly below the cable tie connecting portion (9).

9. A composite wire harness and tube harness fixing device according to claim 1, characterized in that: A plurality of second limit blocks (14) are fixedly arranged on the inner wall of the tube bundle fixing seat (3). The second limit blocks (14) are adjacent to the upper end of the tube bundle fixing seat (3). The second limit blocks (14) are arranged at intervals along the annular direction of the tube bundle fixing seat (3).

10. A composite wire harness and tube harness fixing device according to claim 9, characterized in that: The second limiting block (14) abuts against the flange (7) at the upper end of the mounting seat (2).

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