CN-224233277-U - Flame-retardant wire harness protective sleeve structure

Abstract

The utility model discloses a flame-retardant wire harness protective sleeve structure, which comprises a corrugated sheet, wherein the top outer wall and the bottom outer wall of the corrugated sheet are respectively provided with a connecting sheet, the corrugated sheet and the connecting sheets are in a bending state when not stressed, the outer parts of the two connecting sheets are respectively provided with a connecting component, the connecting components comprise a first extending strip arranged at the end of the connecting sheet, the outer wall, close to the outer side, of one end of the connecting sheet is provided with a second extending strip, the outer walls of the first extending strip and the second extending strip, which are far away from each other, are respectively provided with an inserting groove, the two inserting grooves are in sliding insertion connection with the same connecting pin, and the end positions of the connecting pins are in sliding insertion connection with limiting bolts.

Inventors

• XU MINGMING
• YAO FENG
• LIU RONGHUA

Assignees

• 佛发(苏州)汽车配件有限公司

Dates

Publication Date

20260512

Application Date

20250604

Claims (7)

1. 1. The utility model provides a fire-retardant pencil protective sheath structure, includes ripple piece (1), its characterized in that ripple piece (1) top outer wall and bottom outer wall all are provided with a connection piece (2), ripple piece (1) and connection piece (2) are crooked state when not atress, two coupling assembling (3) are all installed to connection piece (2) outside, coupling assembling (3) include extension strip one (301) that connection piece (2) end set up, the outer wall that connection piece (2) one end is close to the outside is provided with extension strip two (302), one side outer wall that extension strip one (301) and extension strip two (302) kept away from each other has all seted up one jack groove (303), two the slip grafting of jack groove (303) has same connecting pin (304).
2. 2. The flame-retardant wire harness protective sleeve structure according to claim 1, wherein the end position of the connecting pin (304) is slidably inserted with a limit bolt (305), a thread groove is formed in the outer portion of the end of the limit bolt (305), and a nut (306) is sleeved outside the thread groove.
3. 3. The flame-retardant wire harness protective sleeve structure according to claim 1, wherein brominated flame retardants are added into the corrugated sheet (1) and the connecting sheet (2).
4. 4. The flame-retardant wire harness protective sleeve structure according to claim 1, wherein polyimide is added inside the corrugated sheet (1) and the connecting sheet (2).
5. 5. The flame-retardant wire harness protective sleeve structure according to claim 1, wherein the outer parts of the corrugated sheet (1) and the connecting sheet (2) are coated with nano aluminum hydroxide coatings.
6. 6. The flame-retardant wire harness protective sleeve structure according to claim 1, wherein two extending plates (4) which are horizontally arranged are arranged at the ends, away from each other, of the two connecting plates (2), and a through hole is formed in each of the four extending plates (4).
7. 7. A flame retardant wiring harness protective sleeve structure as described in claim 1 wherein each side of said connecting pin (304) end portion is formed with a rounded corner (307).

Description

Flame-retardant wire harness protective sleeve structure Technical Field The utility model relates to the technical field of wire harness protective sleeves, in particular to a flame-retardant wire harness protective sleeve structure. Background In modern industry and transportation, wire harnesses face complex and harsh operating environments. For example, in an automobile engine compartment, the wire harness is subjected to the combined action of various factors such as high temperature (up to 120 ℃ and even higher), oil stains, vibration and the like, and therefore, a protective sleeve is often arranged outside the wire harness. Through searching, the utility model with the Chinese patent publication number of CN222484182U discloses an automobile wire harness flame-retardant protective sleeve, which comprises a pipe body, wherein interfaces are fixedly connected to two ends of the pipe body, a supporting sleeve is arranged in the pipe body, a positioning groove is formed in the supporting sleeve, and a positioning block is connected in the positioning groove in a sliding manner. The utility model provides an automobile wire harness flame-retardant protective sleeve. The existing protective sleeve is of an integral structure, and after the wire harness is connected, if the protective sleeve is required to be replaced, the wire harness needs to be detached to finish operation, so that the operation is inconvenient, and an improvement space exists. Disclosure of utility model The utility model aims to provide a flame-retardant wire harness protective sleeve structure for solving the problems in the background art. The technical scheme is that the flame-retardant wire harness protective sleeve structure comprises corrugated sheets, wherein connecting sheets are arranged on the top outer wall and the bottom outer wall of each corrugated sheet, the corrugated sheets and the connecting sheets are in a bending state when not stressed, connecting assemblies are arranged outside the two connecting sheets, each connecting assembly comprises an extending strip I arranged at the end of each connecting sheet, an extending strip II is arranged on the outer wall, close to the outer side, of one end of each connecting sheet, an inserting groove is formed in the outer wall of one side, far away from each extending strip I, of each extending strip II, and two inserting grooves are in sliding insertion connection with the same connecting pin. Under the condition that the whole wire harness is not required to be disassembled, the quick disassembly and replacement of the external wire harness protective sleeve can be realized, maintenance efficiency is improved, complex operation and potential risks possibly brought by the whole wire harness are avoided, the corrugated sheet is broken off, the corrugated sheet is unfolded to be in a plane state, at the moment, the protective sleeve is provided with direct installation conditions, the corrugated sheet is smoothly installed at a corresponding position, after the protective sleeve is installed, the corrugated sheet is surrounded outside the wire harness, the wire harness can be completely wrapped and protected by the corrugated sheet, compared with the traditional mode, the wire harness is not required to be installed through a through hole of the protective sleeve, the operation flow is simplified, the connecting sheet and relevant parts of the wire harness are installed, the first extending strip at the end part of the connecting sheet and the second extending strip at the side wall of the connecting sheet are mutually close, then the connecting pin is inserted into the two inserting grooves, the position of the first extending strip and the second extending strip can be effectively prevented from changing, and the whole protection effect is guaranteed. As a further preferable mode of the technical scheme, the position of the end head of the connecting pin is slidably inserted with a limit bolt, a thread groove is formed in the outer portion of the end head of the limit bolt, and a nut is sleeved on the outer portion of the thread groove. As a further preferable aspect of the present invention, brominated flame retardants are added inside the corrugated sheet and the connecting sheet. As a further preferable aspect of the present invention, polyimide is added inside the corrugated sheet and the connecting sheet. As a further preferable mode of the technical scheme, the outer parts of the corrugated sheet and the connecting sheet are both sprayed with a nano aluminum hydroxide coating. As a further preferable mode of the technical scheme, two extending plates which are horizontally arranged are arranged at the ends, away from each other, of the two connecting pieces, and a through hole is formed in each of the four extending plates. As a further preferred aspect of the present invention, each side of the connecting pin end portion is processed with a rounded corner. The utility