A control harness for electric forklifts

Abstract

This utility model provides a control wiring harness for electric forklifts. The control wiring harness includes multiple cables and multiple protective sleeves. The multiple cables are inserted into the multiple protective sleeves. Each protective sleeve includes a limiting plate and a receiving plate. The side wall of the limiting plate has multiple insertion holes. The side wall of the receiving plate is rotatably connected to multiple flexible rods, which are inserted into the multiple insertion holes. By dividing the wiring harness into multiple independent protective sleeve units and using a detachable flexible rod and threaded connection structure, when a partial protective sleeve or cable is damaged, the damaged part can be replaced separately without removing the entire wiring harness, reducing maintenance time and labor costs. The cables adopt a multi-layer protection design, including tensile aramid fiber filling, foam insulation layer, and a double-layer shielding structure of metal foil and braided mesh, which improves the mechanical strength, bending resistance, and tensile strength of the wiring harness, effectively suppresses external electromagnetic interference, and extends the service life of the wiring harness under complex working conditions.

Description

Technical Field

[0001] This utility model relates to the field of wiring harness structure technology, and in particular to a control wiring harness for electric forklifts. Background Technology

[0002] The control harness on the electric forklift runs through the entire vehicle, connecting various electrical devices and serving as the medium for power and signal transmission.

[0003] A vehicle control wiring harness is disclosed in patent CN217562267U, including a wiring harness body and wires. The wiring harness body includes a protective sleeve and a support column. The protective sleeve has a cylindrical protective cavity inside, and the support column is set in the middle of the protective cavity. Support plates are respectively set between the upper and lower ends and the left and right ends of the support column and the side wall of the protective cavity. A one-to-one corresponding fixing groove is evenly distributed between the side wall of the support column and the side wall of the protective cavity. The wires are set between the fixing grooves. The surface of the wires is provided with an insulation layer and an anti-slip layer from the inside to the outside. The protective sleeve is provided with an anti-corrosion layer, a copper mesh winding layer, a flame retardant layer and a wear-resistant layer from the inside to the outside. The setting of the support column facilitates the support of the wires, and the high elasticity of the support column prevents the wires from being damaged when the wiring harness body is squeezed. However, in use, if the protective sleeve or the wire is damaged, the entire protective sleeve needs to be removed and the damaged part repaired or replaced, which consumes too much manpower and resources, and it is also inconvenient to repair and inspect the damaged part of the wire.

[0004] Therefore, it is necessary to provide a new electric forklift control wiring harness to solve the above-mentioned technical problems. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a control wiring harness for electric forklifts.

[0006] The electric forklift control harness provided by this utility model includes: multiple cables and multiple protective sleeves. The multiple cables are inserted into the multiple protective sleeves. Each of the multiple protective sleeves includes a limiting plate and a receiving plate. The side wall of the limiting plate has multiple insertion holes. The side wall of the receiving plate is rotatably connected to multiple flexible rods. The multiple flexible rods are respectively inserted into the multiple insertion holes.

[0007] Preferably, the flexible rod includes a rubber rod, the outer wall of which is rotatably connected to a corrugated pipe, and the end of the rubber rod away from the receiving plate is fixedly connected to a threaded rod, which is threadedly connected to the side wall of the limiting plate.

[0008] Preferably, the cable includes a cable core, the cable core is covered with an insulation layer, the insulation layer is covered with a shielding layer, and the shielding layer is covered with an outer sheath. The cable core includes multiple protective sleeves, each of which has multiple keels on its inner sidewall, multiple binding cores inside each of the multiple protective sleeves, and conductors inside each of the multiple binding cores. The multiple protective sleeves are arranged in a circle around one of the protective sleeves.

[0009] Preferably, the insulation layer includes an outer sheath, a foam layer, and an inner sheath, wherein the inner sheath covers the surface of the cable core, the foam layer covers the surface of the inner sheath, and the outer sheath covers the surface of the foam layer.

[0010] Preferably, the shielding layer includes a metal foil layer and a metal braided mesh layer, wherein the metal foil layer covers the surface of the outer skin layer and the metal braided mesh layer covers the surface of the metal foil layer.

[0011] Preferably, the metal foil layer is a single-sided aluminum-plastic composite strip, and the metal woven mesh layer is made of tin-plated annealed soft copper wire.

[0012] Compared with related technologies, the electric forklift control wiring harness provided by this utility model has the following advantages: By dividing the wire harness into multiple independent protective sleeve units and adopting a detachable flexible rod and threaded connection structure, when a partial protective sleeve or cable is damaged, the damaged part can be replaced separately without removing the entire wire harness, which greatly reduces repair time and labor costs and improves maintenance efficiency. The cable adopts a multi-layer protection design, including tensile aramid fiber filling, foam insulation layer, and double-layer shielding structure of metal foil and braided mesh. This not only significantly improves the mechanical strength, bending resistance and tensile strength of the cable harness, but also effectively suppresses external electromagnetic interference, ensures stable signal transmission, and extends the service life of the cable harness under complex working conditions. Attached Figure Description

[0013] Figure 1 A schematic diagram of the overall structure of the electric forklift control harness provided by this utility model; Figure 2 A schematic diagram of the protective sleeve structure for the electric forklift control harness provided by this utility model; Figure 3 This is a schematic diagram of the cable structure of the electric forklift control harness provided by this utility model.

[0014] The diagram is labeled as follows: 1. Cable; 11. Cable core; 111. Protective sleeve; 112. Keel; 113. Binding core; 114. Conductor; 12. Insulation layer; 121. Outer sheath; 122. Foaming layer; 123. Inner sheath; 13. Shielding layer; 131. Metal foil layer; 132. Metal braided mesh layer; 14. Outer sheath; 2. Protective sleeve; 21. Limiting plate; 22. Receiving plate; 23. Socket; 24. Flexible rod; 241. Rubber rod; 242. Corrugated pipe; 243. Threaded rod. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0016] Please refer to the following: Figure 1 — Figure 3 ,in, Figure 1 A schematic diagram of the overall structure of the electric forklift control harness provided by this utility model; Figure 2 A schematic diagram of the protective sleeve structure for the electric forklift control harness provided by this utility model; Figure 3 This is a schematic diagram of the cable structure of the electric forklift control harness provided by this utility model.

[0017] In practical implementation, a type of electric forklift control wiring harness has the following structure: Figure 1 — Figure 3 As shown, it includes: multiple cables 1, and multiple protective sleeves 2. The multiple cables 1 are inserted into the multiple protective sleeves 2. Each of the multiple protective sleeves 2 includes a limiting plate 21 and a receiving plate 22. The side wall of the limiting plate 21 has multiple insertion holes 23. The side wall of the receiving plate 22 is rotatably connected to multiple flexible rods 24. The multiple flexible rods 24 are respectively inserted into the multiple insertion holes 23. The flexible rod 24 includes a rubber rod 241, a bellows 242 is rotatably connected to the outer wall of the rubber rod 241, and a threaded rod 243 is fixedly connected to the end of the rubber rod 241 away from the receiving plate 22. The threaded rod 243 is threadedly connected to the side wall of the limiting plate 21. It should be noted that multiple cables 1 are inserted into the cavity formed by the protective sleeve 2, so that the protective sleeve 2 protects the cables 1. At the same time, since the multiple protective sleeves 2 are independently set, they are connected by rubber rods 241 and corrugated tubes 242. The rubber rods 241 and corrugated tubes 242 can enhance the flexibility and bending resistance of the wire harness, thereby improving the durability of the wire harness under frequent bending conditions. Meanwhile, the corrugated tubes 242 can distribute stress and prevent local fatigue fracture of the cables 1. Even if the protective cover 2 needs to be replaced during use, it can be easily installed and replaced simply by removing the protective cover 2 and the threaded rods 243 that are threaded to its side wall.

[0018] The cable 1 includes a cable core 11, the cable core 11 is covered with an insulation layer 12, the insulation layer 12 is covered with a shielding layer 13, and the shielding layer 13 is covered with an outer sheath 14. The cable core 11 includes multiple protective sleeves 111, each of which has multiple keels 112 on its inner sidewall, multiple binding cores 113 inside each of the multiple protective sleeves 111, and conductors 114 inside each of the multiple binding cores 113. The multiple protective sleeves 111 are arranged in a circle around one of the protective sleeves 111.

[0019] The insulation layer 12 includes an outer sheath 121, a foam layer 122, and an inner sheath 123. The inner sheath 123 is made of low-density polypropylene or low-density polyethylene and covers the surface of the cable core 11. The foam layer 122 is made of low-density polypropylene or low-density polyethylene and covers the surface of the inner sheath 123. The outer sheath 121 is made of polyethylene or high-density polypropylene and covers the surface of the foam layer 122. The gap between the inner sheath 123 and the cable core 11 is filled with aramid fibers. Because aramid fibers have high modulus, high temperature resistance, and high strength, they enhance the tensile strength of the coaxial data cable and prevent the cable bundle from deforming during use.

[0020] The shielding layer 13 includes a metal foil layer 131 and a metal braided mesh layer 132. The metal foil layer 131 covers the surface of the outer skin layer 121, and the metal braided mesh layer 132 covers the surface of the metal foil layer 131.

[0021] Metal foil layer 131 is a single-sided aluminum-plastic composite strip, and metal woven mesh layer 132 is made of tin-plated annealed soft copper wire; It should be noted that single-sided aluminum-plastic composite tape refers to a strip material made of aluminum foil and plastic film. It is composited using dry gravure printing, with one side being aluminum foil and the other side being plastic film. It has the function of insulation on one side and conductivity on the other side, which can effectively shield external electromagnetic interference to the signal transmission of the cable core 11. Tin-plated annealed soft copper wire refers to a wire 114 that has been annealed and plated with a layer of tin. This enhances the flexibility and ductility of the wire 114, as well as its oxidation and corrosion resistance, thereby extending the service life of the coaxial data cable.

[0022] The circuits and controls involved in this utility model are all existing technologies and will not be described in detail here.

[0023] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An electrical fork truck control harness characterized by, It includes multiple cables (1) and multiple protective sleeves (2). The multiple cables (1) are inserted into the multiple protective sleeves (2). Each of the multiple protective sleeves (2) includes a limiting plate (21) and a receiving plate (22). The side wall of the limiting plate (21) is provided with multiple insertion holes (23). The side wall of the receiving plate (22) is rotatably connected to multiple flexible rods (24). The multiple flexible rods (24) are respectively inserted into the multiple insertion holes (23).

2. The electrical fork truck control harness of claim 1, wherein, The flexible rod (24) includes a rubber rod (241), a corrugated pipe (242) is rotatably connected to the outer wall of the rubber rod (241), and a threaded rod (243) is fixedly connected to one end of the rubber rod (241) away from the receiving plate (22), and the threaded rod (243) is threadedly connected to the side wall of the limiting plate (21).

3. The electrical fork truck control harness of claim 2, wherein, The cable (1) includes a cable core (11), the cable core (11) is covered with an insulation layer (12), the insulation layer (12) is covered with a shielding layer (13), and the shielding layer (13) is covered with an outer sheath (14). The cable core (11) includes multiple protective sleeves (111), each of the multiple protective sleeves (111) has multiple keels (112) on its inner sidewall, each of the multiple protective sleeves (111) has multiple binding cores (113) inside, each of the multiple binding cores (113) has a conductor (114) inside, and the multiple protective sleeves (111) are arranged in a circle around one of the protective sleeves (111).

4. The electrical fork truck control harness of claim 3, wherein, The insulation layer (12) includes an outer sheath (121), a foam layer (122), and an inner sheath (123). The inner sheath (123) covers the surface of the cable core (11), the foam layer (122) covers the surface of the inner sheath (123), and the outer sheath (121) covers the surface of the foam layer (122).

5. The electrical fork truck control harness of claim 4, wherein, The shielding layer (13) includes a metal foil layer (131) and a metal braided mesh layer (132). The metal foil layer (131) covers the surface of the outer skin layer (121), and the metal braided mesh layer (132) covers the surface of the metal foil layer (131).

6. The electrical fork truck control harness of claim 5, wherein, The metal foil layer (131) is a single-sided aluminum-plastic composite strip, and the metal woven mesh layer (132) is made of tin-plated annealed soft copper wire.

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