Flame-retardant protective sleeve for automobile wire harness

Abstract

The utility model provides an automobile wire harness flame-retardant protective sleeve, which comprises a pipe body, two ends of the pipe body are fixedly connected with interfaces, a support sleeve is arranged in the pipe body, a positioning groove is arranged in the support sleeve, and a positioning block is slidably connected in the positioning groove. According to the flame-retardant protective sleeve for the automobile wire harness provided by the utility model, one end of the wire harness is inserted into the supporting sleeves in the pipe body from the interface at one end of the pipe body, and then passes through the interiors of the supporting sleeves, so that the wire harness is inserted into the supporting sleeves after being moved out from the interface at the other end of the pipe body; and meanwhile, the two ends of the pipe body move towards the two sides correspondingly, so that the limiting blocks are driven to be separated from the limiting holes, the positioning blocks are driven to be separated from the positioning grooves, extension and contraction of the pipe body are not affected, and the installation efficiency is improved. Meanwhile, the positioning blocks and the limiting blocks can be matched through a plurality of supporting sleeves after contraction.

Description

Technical Field

[0001] The utility model relates to the field of flame retardant protective covers, in particular to a flame retardant protective cover for automobile wiring harnesses. Background Art

[0002] The automotive wiring harness is the network body of the automotive circuit. Without the wiring harness, there would be no automotive circuit. The wiring harness refers to the contact terminal made of copper material, which is crimped with wires and cables, and then plastic-pressed with an insulator or an additional metal shell to form a component connecting the circuit.

[0003] Nowadays, flame-retardant protective covers are used to protect the connecting wiring harnesses in cars. For example, in the electric seats in the car, flame-retardant protective covers are put on the surface of the wiring harness to prevent sparks from causing spontaneous combustion of the car when a short circuit occurs in the wiring harness.

[0004] However, since most flame retardant protective covers are of corrugated tube type, when the flame retardant protective cover is damaged or when the seat is modified, the wiring harness needs to be inserted into the interior of the flame retardant protective cover. Since the flame retardant protective cover is relatively soft and has many bends inside, the wiring harness can easily get stuck at the bend of the flame retardant protective cover after one end is inserted into the interior of the flame retardant protective cover, making it inconvenient to insert the wiring harness into the flame retardant protective cover for use.

[0005] Therefore, it is necessary to provide a flame retardant protective cover for automobile wiring harness to solve the above technical problems. Utility Model Content

[0006] The utility model provides a flame retardant protective cover for an automobile wiring harness, which solves the problem that it is inconvenient to insert the wiring harness into the interior of the flame retardant protective cover for use.

[0007] In order to solve the above technical problems, the utility model provides a flame retardant protective cover for automobile wiring harness, comprising:

[0008] A tube body, both ends of which are fixedly connected with interfaces;

[0009] A support sleeve, wherein the support sleeve is arranged inside the tube body, a positioning groove is provided inside the support sleeve, a positioning block is slidably connected inside the positioning groove, and a limiting hole is provided inside the positioning block;

[0010] A reset groove is arranged inside the support sleeve, a reset block is slidably connected inside the reset groove, a reset spring is arranged inside the reset groove, and a limiting block is arranged on one side of the reset block.

[0011] Preferably, the limiting block is a semicircular block, and the limiting hole is a semicircular hole matched with the limiting block.

[0012] Preferably, four telescopic parts are arranged on the inner wall surface of the support sleeve, and two limiting sleeves are arranged on one end of the four telescopic parts.

[0013] Preferably, one end of the four telescopic members is fixedly mounted on the surface of the inner wall of the support sleeve, and the other end is fixedly mounted on the surfaces of the two limiting sleeves respectively.

[0014] Preferably, a protective pad is fixedly connected to the surface of the limiting sleeve, and the protective pad is made of rubber material.

[0015] Preferably, the surface of the limiting sleeve is rotatably connected to an adjusting rod, and the surface of the adjusting rod is threadedly connected to the adjusting sleeve.

[0016] Preferably, the adjusting sleeve is a threaded sleeve, and the adjusting rod is a threaded rod matched with the adjusting sleeve.

[0017] Compared with the related art, the flame retardant protective cover for automobile wiring harness provided by the utility model has the following beneficial effects:

[0018] The utility model provides a flame retardant protective cover for automobile wiring harness. The utility model provides a flame retardant protective cover for automobile wiring harness. After one end of the wiring harness is inserted into the interior of a support cover inside the tube body from an interface at one end of a tube body, it passes through the interiors of multiple support covers, and thus is moved out from the interface at the other end of the tube body, thereby facilitating the wiring harness to pass through the interior of the tube body to increase installation efficiency. At the same time, by moving the two ends of the tube body to both sides respectively, the limit block is driven to separate from the limit hole, and the positioning block is separated from the positioning groove, thereby not affecting the extension and contraction of the tube body. At the same time, after contraction, the multiple support covers can be used to cooperate with the positioning block and the limit block, so that the tube body becomes a whole, which is convenient for the installation of the wiring harness. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A structural schematic diagram of a first embodiment of a flame-retardant protective cover for automotive wiring harness provided by the utility model;

[0020] Figure 2 for Figure 1 A schematic cross-sectional structural diagram of the sleeve shown;

[0021] Figure 3 for Figure 2 An enlarged schematic diagram of part A is shown;

[0022] Figure 4 for Figure 3 An enlarged schematic diagram of part B is shown;

[0023] Figure 5 A structural schematic diagram of a second embodiment of a flame-retardant protective cover for automotive wiring harnesses provided by the utility model;

[0024] Figure 6 for Figure 5 An enlarged schematic diagram of part C is shown.

[0025] Numbers in the figure: 1, tube body, 2, interface, 3, support sleeve, 4, positioning groove, 41, positioning block, 42, limiting hole, 5, reset groove, 51, reset block, 52, reset spring, 53, limit block, 6, telescopic part, 7, limit sleeve, 8, adjusting sleeve, 9, adjusting rod, 10, protective pad. DETAILED DESCRIPTION

[0026] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.

[0027] First embodiment

[0028] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 ,in, Figure 1 A structural schematic diagram of a first embodiment of a flame-retardant protective cover for automotive wiring harness provided by the utility model; Figure 2 for Figure 1 A schematic cross-sectional structural diagram of the sleeve shown; Figure 3 for Figure 2 An enlarged schematic diagram of part A is shown; Figure 4 for Figure 3 The enlarged schematic diagram of part B is shown. A flame retardant protective cover for automotive wiring harness, comprising:

[0029] A tube body 1, both ends of which are fixedly connected with interfaces 2;

[0030] A support sleeve 3, wherein the support sleeve 3 is arranged inside the tube body 1, a positioning groove 4 is provided inside the support sleeve 3, a positioning block 41 is slidably connected inside the positioning groove 4, and a limiting hole 42 is provided inside the positioning block 41;

[0031] The reset groove 5 is arranged inside the support sleeve 3 , a reset block 51 is slidably connected inside the reset groove 5 , a reset spring 52 is arranged inside the reset groove 5 , and a limiting block 53 is arranged on one side of the reset block 51 .

[0032] The tube body 1 is a bellows-type flame-retardant protective cover, and multiple folding parts of the bellows are connected to the support sleeves 3 through connecting blocks. Two positioning grooves 4 are provided inside the multiple support sleeves 3, and the multiple positioning grooves 4 are slidably connected with positioning blocks 41. The multiple positioning blocks 41 are respectively fixedly connected to one side of the multiple support sleeves 3, and are used for positioning when the multiple support sleeves 3 are connected in pairs.

[0033] Two limiting holes 42 are formed inside each of the plurality of positioning blocks 41 .

[0034] Four reset grooves 5 are formed inside the plurality of support sleeves 3 , reset blocks 51 are slidably connected inside the plurality of reset grooves 5 and reset springs 52 are arranged inside the plurality of reset blocks 51 , and one end of the plurality of reset blocks 51 is fixedly connected to a limiting block 53 .

[0035] The limiting block 53 is a semicircular block, and the limiting hole 42 is a semicircular hole matched with the limiting block 53 .

[0036] The limit block 53 is a semicircular block, and the limit hole 42 is a semicircular hole adapted to the limit block 53, which is used to drive the multiple positioning blocks 41 to move to one side when the multiple support sleeves 3 are separated from each other, so that the limit hole 42 squeezes the limit block 53 to automatically move to one side.

[0037] The working principle of the flame retardant protective cover for automobile wiring harness provided by the utility model is as follows:

[0038] When in use, one end of the wire harness is inserted from the interface 2 at one end of the tube body 1 into the support sleeve 3 inside the tube body 1 , and then passes through the interiors of multiple support sleeves 3 , and then removed from the interface 2 at the other end of the tube body 1 .

[0039] By pulling the multiple support sleeves 3 toward both sides through the two ends of the tube body 1 to separate them, the limit block 53 is driven to move to one side inside the limit hole 42, and the multiple positioning blocks 41 are moved to one side, so that the limit hole 42 squeezes the limit block 53 to automatically move to one side. When the limit block 53 moves to one side, it drives the reset block 51 to move to one side inside the reset groove 5 while squeezing the reset spring 52, so that the limit block 53 is separated from the limit hole 42.

[0040] At the same time, after the positioning block 41 is moved to one side and separated inside the positioning groove 4, the tube body 1 is extended to a suitable length.

[0041] Compared with the related art, the flame retardant protective cover for automobile wiring harness provided by the utility model has the following beneficial effects:

[0042] The utility model provides a flame retardant protective cover for automobile wiring harness, which is convenient for increasing the installation efficiency when the wiring harness is passed through the interior of the pipe body 1 by inserting one end of the wiring harness from an interface 2 at one end of a pipe body 1 into the interior of a support cover 3 inside the pipe body 1, and then passing through the interior of a plurality of support covers 3, so as to be moved out from the interface 2 at the other end of the pipe body 1. At the same time, by moving the two ends of the pipe body 1 to both sides respectively, the limiting block 53 is driven to separate from the limiting hole 42, and the positioning block 41 is separated from the positioning groove 4, so as not to affect the extension and contraction of the pipe body 1. At the same time, after contraction, the pipe body 1 can be made into a whole by cooperating with the positioning block 41 and the limiting block 53 through the plurality of support covers 3, so as to facilitate the installation of the wiring harness.

[0043] Second embodiment

[0044] Please refer to Figure 5 and Figure 6 Based on the flame retardant protective cover for automotive wiring harness provided in the first embodiment of the present application, the second embodiment of the present application proposes another flame retardant protective cover for automotive wiring harness. The second embodiment is only a preferred embodiment of the first embodiment, and the implementation of the second embodiment will not affect the independent implementation of the first embodiment.

[0045] Specifically, the second embodiment of the present application provides a flame retardant protective cover for automotive wiring harnesses, which is different in that the inner wall surface of the support cover 3 is provided with four telescopic parts 6, and one end of the four telescopic parts 6 is provided with two limit sleeves 7.

[0046] One ends of the four telescopic members 6 are fixedly mounted on the surface of the inner wall of the support sleeve 3 , and the other ends are fixedly mounted on the surfaces of the two limiting sleeves 7 .

[0047] A protective pad 10 is fixedly connected to the surface of the limiting sleeve 7 , and the protective pad 10 is made of rubber material.

[0048] The protection pad 10 is used to increase the friction between the limiting sleeve 7 and the wire harness, thereby increasing the fixing effect, and also protects the limiting sleeve 7 when clamping the wire harness.

[0049] The surface of the limiting sleeve 7 is rotatably connected with an adjusting rod 9 , and the surface of the adjusting rod 9 is threadedly connected with an adjusting sleeve 8 .

[0050] The adjusting sleeve 8 is a threaded sleeve, and the adjusting rod 9 is a threaded rod matched with the adjusting sleeve 8 .

[0051] The inner walls of the two support sleeves 3 at both ends of the tube body 1 are fixedly connected with two adjustment sleeves 8 and four telescopic parts 6. One end of the eight telescopic parts 6 is fixedly installed on the surface of the inner wall of the two support sleeves 3, and the other end is fixedly installed on the surface of the four limit sleeves 7.

[0052] The telescopic member 6 is a telescopic rod.

[0053] The insides of the four adjustment sleeves 8 are all threadedly connected with adjustment rods 9 , and one end of the four adjustment rods 9 is rotatably connected to the top and bottom of the four limit sleeves 7 through a rotating shaft.

[0054] The working principle of the flame retardant protective cover for automobile wiring harness provided by the utility model is as follows:

[0055] When in use, the adjusting rod 9 is rotated to one side, so that the adjusting sleeve 8 rotates to one side and moves to one side at the same time. When the adjusting rod 9 moves to one side, the limiting sleeve 7 connected to the two telescopic members 6 is extended to one side. After the two limiting sleeves 7 clamp one end of the wire harness, the above steps are repeated to clamp the other end of the wire harness.

[0056] Compared with the related art, the flame retardant protective cover for automobile wiring harness provided by the utility model has the following beneficial effects:

[0057] The utility model provides a flame retardant protective cover for an automobile wiring harness. By rotating an adjusting rod 9 to one side and moving to one side inside an adjusting cover 8, a limiting cover 7 connected to a telescopic member 6 is driven to extend to one side. After limiting the two ends of the wiring harness by four limiting covers 7, the wiring harness will not be contracted to enter the interior of the tube body 1 when a tube body 1 is pulled and extended. Meanwhile, the tube body 1 and the wiring harness are fixed to prevent one end of the wiring harness from entering the interior of the tube body 1 after one end of the wiring harness is disassembled, thereby making it inconvenient to take out one end of the wiring harness again.

[0058] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A flame retardant protective cover for automotive wiring harness, characterized in that: include: A tube body, both ends of which are fixedly connected with interfaces; A support sleeve, wherein the support sleeve is arranged inside the tube body, a positioning groove is provided inside the support sleeve, a positioning block is slidably connected inside the positioning groove, and a limiting hole is provided inside the positioning block; A reset groove is arranged inside the support sleeve, a reset block is slidably connected inside the reset groove, a reset spring is arranged inside the reset groove, and a limiting block is arranged on one side of the reset block.

2. The flame retardant protective cover for automotive wiring harness according to claim 1, characterized in that: The limiting block is a semicircular block, and the limiting hole is a semicircular hole matched with the limiting block.

3. The flame retardant protective cover for automotive wiring harness according to claim 1, characterized in that: Four telescopic parts are arranged on the inner wall surface of the support sleeve, and two limiting sleeves are arranged at one end of the four telescopic parts.

4. The flame retardant protective cover for automotive wiring harness according to claim 3, characterized in that: One ends of the four telescopic members are fixedly mounted on the surface of the inner wall of the support sleeve, and the other ends are respectively fixedly mounted on the surfaces of the two limit sleeves.

5. The flame retardant protective cover for automotive wiring harness according to claim 4, characterized in that: A protective pad is fixedly connected to the surface of the limiting sleeve, and the protective pad is made of rubber material.

6. The flame retardant protective cover for automotive wiring harness according to claim 5, characterized in that: The surface of the limiting sleeve is rotatably connected with an adjusting rod, and the surface of the adjusting rod is threadedly connected with the adjusting sleeve.

7. The flame retardant protective cover for automotive wiring harness according to claim 6, characterized in that: The adjusting sleeve is a threaded sleeve, and the adjusting rod is a threaded rod matched with the adjusting sleeve.

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