A universal wire harness for a forklift truck

Abstract

This utility model discloses a universal wiring harness for forklifts, relating to the field of forklift technology. It includes a mounting assembly comprising a mounting plate, with two symmetrically distributed mounting brackets fixed to both sides of the top outer surface of the mounting plate. The interiors of the two mounting brackets are connected to auxiliary rollers via bearings, and four rectangularly distributed L-shaped clamping plates are fixed to the center of the top outer surface of the mounting plate. This utility model allows for the disassembly and assembly of the wiring harness connector by opening the C-shaped sealing plate. Rotating the retraction assembly winds the wiring harness onto two winding posts, retracting it to a certain extent to ensure controllable tension and prevent pulling or jamming. When the wiring harness needs to be bent to connect with other wiring harnesses, the guiding assembly can move through a sliding opening to adjust the orientation of one end of the wiring harness, preventing excessive bending and extending its service life.

Description

Technical Field

[0001] This utility model relates to the field of forklift technology, specifically a general wiring harness for forklifts. Background Technology

[0002] In forklift electrical systems, wiring harnesses, as the core component connecting various electrical elements, directly affect the operational stability and safety of the forklift. With the development of intelligent and multifunctional forklifts, the complexity of electrical systems has significantly increased, placing higher demands on the compatibility, protection, and wiring flexibility of wiring harnesses. Traditional forklift wiring harnesses typically adopt a fixed structure, directly fixed to the frame using cable ties or clips, but this presents the following technical bottlenecks:

[0003] Traditional clips or cable ties are prone to loosening, causing the wiring harness to shake, wear, or even fall off. For example, the wiring harness near the engine may break due to vibration. In order to adapt to dynamic working conditions, the wiring harness needs to have a spare length, which leads to messy wiring and increases the risk of tangling or jamming. Utility Model Content

[0004] The purpose of this invention is to provide a universal wiring harness for forklifts to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a universal wiring harness for forklifts, comprising a mounting assembly, wherein the mounting assembly includes a mounting plate, and two symmetrically distributed mounting brackets are fixed on both sides of the top outer surface of the mounting plate. An auxiliary roller is connected inside the two mounting brackets via bearings. Four L-shaped clamping plates arranged in a rectangular pattern are fixed in the middle of the top outer surface of the mounting plate. Two symmetrically distributed auxiliary components are fixed to the top outer surface of the mounting plate via bolts. Each auxiliary component includes a fixing cover. A circular opening is provided on the top outer surface of the fixing cover, and a retraction component is rotatably connected inside the circular opening via a damping bearing. A sliding opening is provided on one side of the fixing cover, and a guide component is slidably connected inside the sliding opening. A C-shaped sealing plate is clamped between the two fixing covers and is fixedly connected to the two fixing covers via bolts. Two wiring harness bodies are disposed between the two fixing covers, the C-shaped sealing plate, and the mounting plate, and the connectors of the two wiring harness bodies are inserted into each other. Both connectors are clamped between the four L-shaped clamping plates. One end of each of the two wiring harness bodies extends out of the fixing cover through the two guide components.

[0006] Furthermore, the fixing cover has equidistantly distributed positioning grooves on its outer surface above the sliding opening, and the top and bottom inner walls of the sliding opening are both provided with limiting grooves. The fixing cover is fixedly connected to the mounting plate by bolts.

[0007] Furthermore, the shrinking assembly includes a turntable, which is fixed inside the circular opening by a damping bearing, and two symmetrically distributed take-up columns are mounted on the bottom outer surface of the turntable.

[0008] Furthermore, the guiding component includes a U-shaped plate, and limit blocks are installed on the top and bottom surfaces of the U-shaped plate. The limit blocks and limit grooves form a sliding fit, and spring telescopic columns are installed on both sides of the U-shaped plate. One end of the piston rod of the spring telescopic column passes through the U-shaped plate and is fixed with a clamping plate.

[0009] Furthermore, a positioning plate is installed on the top of one side of the outer surface of the shaped plate, and a fixing sleeve is installed on one side of the outer surface of the positioning plate. One end of the fixing sleeve has a threaded opening, and a threaded rod is screwed into the inside of the threaded opening. A positioning pin is installed at one end of the threaded rod. The outer surface of the positioning plate has a through opening, and the positioning pin passes through the through opening to form an insertion fit with the positioning groove.

[0010] Furthermore, the bottom end of the take-up post forms a sliding fit with the top surface of the mounting plate, and the wire harness body is located between the two take-up posts.

[0011] Furthermore, the harness body contacts the two clamping plates, and the bottom outer surface of the C-shaped sealing plate contacts the top outer surface of the mounting plate.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] A universal wiring harness for forklifts has a mounting plate that can be bolted to a suitable position on the forklift. The connector of the wiring harness body can be disassembled and assembled by opening the C-shaped sealing plate. The retraction assembly can be rotated to wind the wiring harness body onto two retraction posts, which can shrink the wiring harness body to a certain extent, ensuring that the tension of the wiring harness is controllable, preventing pulling or jamming, and solving the problem of redundant and messy wiring harnesses.

[0014] Meanwhile, when the wire harness body needs to be bent to connect with other wire harnesses, the guide component can move in the sliding port, thereby adjusting the orientation of one end of the wire harness body, preventing the wire harness body from bending to a large extent, extending the service life of the wire harness body, and by rotating the threaded rod, the positioning post can be inserted into the corresponding positioning slot to complete the position fixation. The four L-shaped positioning plates increase the stability of the two wire harness connectors and prevent loosening. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the vertical cross-section structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the auxiliary components and C-shaped sealing plate structure of this utility model;

[0018] Figure 4This is a schematic diagram of the mounting component structure of this utility model;

[0019] Figure 5 This is a schematic diagram of the auxiliary component structure of this utility model;

[0020] Figure 6 This is a schematic diagram of the guiding component structure of this utility model;

[0021] Figure 7 This is a schematic diagram of the cross-sectional structure of the guide component of this utility model;

[0022] Figure 8 This is a schematic diagram of the shrinkage component structure of this utility model.

[0023] In the diagram: 1. Mounting assembly; 11. Mounting plate; 12. Fixing frame; 13. Auxiliary roller; 14. L-shaped clamping plate; 2. Auxiliary assembly; 21. Fixing cover; 22. Slide opening; 23. Positioning groove; 24. Limiting groove; 3. Shrinking assembly; 31. Turntable; 32. Rewinding column; 4. Guide assembly; 41. Retractable plate; 42. Limiting block; 43. Spring telescopic column; 44. Clamping plate; 45. Positioning plate; 46. Fixing sleeve; 47. Threaded rod; 48. Positioning column; 5. Wire harness body; 6. C-shaped sealing plate. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] like Figures 1-8As shown, this utility model provides a technical solution: a universal wiring harness for forklifts, including a mounting assembly 1. The mounting assembly 1 includes a mounting plate 11, and two symmetrically distributed mounting brackets 12 are fixed on both sides of the top outer surface of the mounting plate 11. The interiors of the two mounting brackets 12 are connected to auxiliary rollers 13 via bearings. Four rectangularly distributed L-shaped clamping plates 14 are fixed to the center of the top outer surface of the mounting plate 11. Two symmetrically distributed auxiliary components 2 are fixed to the top outer surface of the mounting plate 11 by bolts. Each auxiliary component 2 includes a fixing cover 21, the top outer surface of which has a circular opening. The internal structure is rotatably connected to the shrinking assembly 3 via a damping bearing. A sliding opening 22 is provided on the outer surface of one side of the fixed cover 21, and a guide assembly 4 is slidably connected inside the sliding opening 22. A C-shaped sealing plate 6 is snapped between the two fixed covers 21, and the C-shaped sealing plate 6 is fixedly connected to the two fixed covers 21 by bolts. Two wire harness bodies 5 are provided between the two fixed covers 21, the C-shaped sealing plate 6 and the mounting plate 11, and the connectors of the two wire harness bodies 5 are inserted into each other. Both connectors are snapped between four L-shaped clamping plates 14. One end of each of the two wire harness bodies 5 passes through the two guide assemblies 4 and extends to the outside of the fixed cover 21.

[0026] It is important to note that the mounting plate 11 can be flexibly fixed to different positions on the forklift (such as the mast, frame, and electrical compartment) with bolts, enabling modular installation and adapting to the layout requirements of multiple vehicle models. Opening the C-shaped sealing plate 6 can quickly expose the wiring harness connection area without disassembling the overall structure, thus improving the efficiency of disassembly and assembly of the wiring harness body 5. This is especially suitable for rapid maintenance of forklift electrical systems. The retraction component 3 achieves stepless rotation adjustment through a damping bearing, allowing the wiring harness body 5 to be precisely wound between the two winding posts 32. Combined with the auxiliary roller 13 on the top of the mounting plate 11, this reduces the wiring harness tension error and effectively avoids the risk of redundant entanglement or instantaneous pull breakage of the wiring harness caused by mast lifting and fork extension. In addition, the protective space formed by the two fixed covers 21 and the C-shaped sealing plate 6 can block oil, dust, and high-pressure water splashes in the forklift operating environment, extending the aging cycle of the wiring harness body insulation layer.

[0027] The fixed cover 21 is located above the slide 22 and has equidistantly distributed positioning grooves 23 on its outer surface. The top inner wall and bottom inner wall of the slide 22 are both provided with limiting grooves 24. The fixed cover 21 is fixedly connected to the mounting plate 11 by bolts.

[0028] It should be noted that the positioning groove 23 is 3mm deep, and the fixing cover 21 is connected to the mounting plate 11 by stainless steel bolts. The bolt hole is designed with anti-loosening bosses to adapt to the long-term vibration conditions of the forklift.

[0029] The shrinking assembly 3 includes a turntable 31, which is fixed inside the circular opening by a damping bearing. Two symmetrically distributed take-up columns 32 are mounted on the bottom outer surface of the turntable 31.

[0030] It should be noted that the damping bearing is a double-row angular contact ball bearing with built-in silicon-based damping grease, and the surface of the take-up post 32 is provided with spiral grooves to prevent the wire harness body 5 from slipping.

[0031] The guide assembly 4 includes a spiral plate 41, and limit blocks 42 are installed on the top and bottom surfaces of the spiral plate 41. The limit blocks 42 and the limit groove 24 form a sliding fit. Spring telescopic columns 43 are installed on both sides of the spiral plate 41. One end of the piston rod of the spring telescopic column 43 passes through the spiral plate 41 and is fixed with a clamping plate 44.

[0032] It should be noted that when the wire harness body 5 needs to be bent to connect other electrical components, the loop plate 41 can move within the sliding opening 22 to get closer to the corresponding electrical component position, thereby reducing the degree of bending of the wire harness body 5.

[0033] A positioning plate 45 is installed on the top of one side of the outer surface of the U-shaped plate 41, and a fixing sleeve 46 is installed on one side of the outer surface of the positioning plate 45. One end of the fixing sleeve 46 has a threaded opening, and a threaded rod 47 is screwed into the inside of the threaded opening. A positioning pin 48 is installed on one end of the threaded rod 47. The outer surface of the positioning plate 45 has a through opening, and the positioning pin 48 passes through the through opening and forms an insertion fit with the positioning groove 23.

[0034] It should be noted that the positioning plate 45 is made of spring steel with a galvanized surface, the threaded rod 47 uses fine thread and has a knurled anti-slip texture on the head for easy manual adjustment, and the positioning post 48 is made of 304 stainless steel with chamfered ends and an interference fit with the positioning groove 23.

[0035] The bottom end of the take-up post 32 is in sliding fit with the top surface of the mounting plate 11, and the wire harness body 5 is located between the two take-up posts 32.

[0036] It should be noted that the mounting plate 11 is in the shape of an I-beam, and mounting holes are provided at all four corners.

[0037] The wire harness body 5 contacts the two clamping plates 44, and the bottom outer surface of the C-shaped sealing plate 6 contacts the top outer surface of the mounting plate 11.

[0038] It should be noted that a PTFE film is attached to the contact area between the clamping plate 44 and the wire harness body 5 to prevent wear of the wire harness insulation layer caused by long-term clamping. A silicone rubber sealing strip is embedded on the contact surface between the C-shaped sealing plate 6 and the mounting plate 11.

[0039] Working principle: In use, the mounting plate 11 is fixed to a suitable position on the forklift with bolts. The connector of the wire harness body 5 can be disassembled and assembled by unscrewing the bolts on the C-shaped sealing plate 6. Turning to the shrink assembly 3 can wind the wire harness body 5 onto the two winding posts 32, shrinking the wire harness body 5 to a certain extent to ensure that the wire harness tension is controllable and to prevent pulling or jamming. The connector of the two wire harness bodies 5 is located in the four L-shaped clamping plates 14, which increases the stability of the connection between the two wire harness bodies 5. When the wire harness body needs to be bent to connect with other wire harnesses, the return plate 41 can move in the sliding mouth 22 to get closer to the corresponding electrical component position, reducing the degree of bending of the wire harness body 5 and extending the service life of the wire harness body 5. By rotating the threaded rod 47, the positioning post 48 can be inserted into the corresponding positioning groove 23 to complete the position fixation.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended embodiments and their equivalents.

Claims

1. A universal wiring harness for forklifts, comprising a mounting assembly (1), characterized in that: The mounting assembly (1) includes a mounting plate (11), and two symmetrically distributed fixing brackets (12) are fixed on both sides of the top outer surface of the mounting plate (11). The interiors of the two fixing brackets (12) are connected to auxiliary rollers (13) via bearings. Four rectangular L-shaped clamping plates (14) are fixed in the middle of the top outer surface of the mounting plate (11). Two symmetrically distributed auxiliary assemblies (2) are fixed to the top outer surface of the mounting plate (11) via bolts. Each auxiliary assembly (2) includes a fixing cover (21). The top outer surface of the fixing cover (21) has a circular opening, and the interior of the circular opening is rotatably connected to a shrinking assembly (3) via a damping bearing. A sliding opening (22) is provided on one side of the fixed cover (21), and a guide component (4) is slidably connected inside the sliding opening (22). A C-shaped sealing plate (6) is snapped between the two fixed covers (21), and the C-shaped sealing plate (6) is fixedly connected to the two fixed covers (21) by bolts. Two wire harness bodies (5) are provided between the two fixed covers (21), the C-shaped sealing plate (6) and the mounting plate (11), and the connectors of the two wire harness bodies (5) are inserted into each other. Both connectors are snapped between four L-shaped clamping plates (14). One end of each of the two wire harness bodies (5) extends out of the fixed cover (21) through the two guide components (4).

2. The universal wiring harness for forklifts according to claim 1, characterized in that: The fixing cover (21) is located above the slide (22) and has equidistantly distributed positioning grooves (23) on its outer surface. The top inner wall and bottom inner wall of the slide (22) are both provided with limiting grooves (24). The fixing cover (21) is fixedly connected to the mounting plate (11) by bolts.

3. A universal wiring harness for forklifts according to claim 1, characterized in that: The shrinking assembly (3) includes a turntable (31), which is fixed inside the circular opening by a damping bearing. Two symmetrically distributed take-up columns (32) are installed on the bottom outer surface of the turntable (31).

4. A universal wiring harness for forklifts according to claim 1, characterized in that: The guide assembly (4) includes a spiral plate (41), and limit blocks (42) are installed on the top and bottom surfaces of the spiral plate (41). The limit blocks (42) and the limit groove (24) form a sliding fit. Spring telescopic columns (43) are installed on both sides of the spiral plate (41). One end of the piston rod of the spring telescopic column (43) passes through the spiral plate (41) and is fixed with a clamping plate (44).

5. A universal wiring harness for forklifts according to claim 4, characterized in that: A positioning plate (45) is installed on the top of one side of the outer surface of the shaped plate (41), and a fixing sleeve (46) is installed on one side of the outer surface of the positioning plate (45). One end of the fixing sleeve (46) is provided with a threaded opening, and a threaded rod (47) is screwed into the inside of the threaded opening. A positioning pin (48) is installed on one end of the threaded rod (47). The outer surface of the positioning plate (45) is provided with a through opening, and the positioning pin (48) passes through the through opening and forms an insertion fit with the positioning groove (23).

6. A universal wiring harness for forklifts according to claim 3, characterized in that: The bottom end of the take-up post (32) is in sliding fit with the top surface of the mounting plate (11), and the wire harness body (5) is located between the two take-up posts (32).

7. A universal wiring harness for forklifts according to claim 1, characterized in that: The harness body (5) is in contact with the two clamping plates (44), and the bottom outer surface of the C-shaped sealing plate (6) is in contact with the top outer surface of the mounting plate (11).

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