A cable wall-through connector with anti-loosening function

Abstract

The utility model provides a kind of cable wall-penetrating terminal block with anti-loose function, including wiring branch plate, insulating sleeve, stud bolt and fastening bolt.The utility model changes the round hole on the wiring branch plate of cable wall-penetrating terminal block into square hole, and the insulating sleeve cooperation part and the non-threaded portion in the middle of stud bolt at both ends of wiring branch plate are changed from round to square structure, when wall-penetrating terminal block assembly is completed, due to the square structure of the middle square hole and the joint of insulating sleeve, it can avoid the rotation of insulating sleeve and stud bolt due to cable fastening and crane vibration during cable assembly and crane process, so as to cause cable loosening, avoid cable falling off and accident.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of special vehicle cable assembly, concretely relates to a cable wall -penetrating terminal strip with anti -loose function. BACKGROUND

[0002] At present, the special vehicle cable is crossed between each cabin, adopts the mode of wall -penetrating terminal strip. The existing wall -penetrating terminal strip is composed of terminal support plate, insulating sleeve and stud bolt. The terminal support plate is provided with a round hole, the stud bolt is inserted into the insulating sleeve, and then the installation of the cable wall -penetrating terminal strip is completed from the round hole. When the whole vehicle cable is assembled, the wall -penetrating cable is fixed on the terminal post, and when the cable is fastened, the stud bolt and the insulating sleeve may rotate together, so that the cable cannot be fastened in place, at this time, the cable is fastened by fixing one end with pliers, and the fastening bolt may be loosened due to vibration during driving, so that the cable is loosened and falls off, causing short circuit and fire, and further causing fire. SUMMARY

[0003] (I) Technical problem to be solved

[0004] The utility model provides a cable wall -penetrating terminal strip with anti -loose function to solve the technical problem of inconvenient cable fastening and possible cable loosening and falling off due to vibration.

[0005] (II) Technical scheme

[0006] In order to solve the above technical problem, the utility model provides a cable wall -penetrating terminal strip with anti -loose function, which comprises a terminal support plate, an insulating sleeve, a stud bolt and a fastening bolt, wherein,

[0007] The terminal support plate is provided with a square hole for passing through the stud bolt; the middle non-threaded part of the stud bolt is processed into a square column with the same size as the square hole of the terminal support plate; the center hole of the insulating sleeve located at both ends of the terminal support plate is processed into a square hole with the same size as the square column of the stud bolt; the square column of the stud bolt is inserted into the square hole of the terminal support plate, and the two insulating sleeves are sleeved on both ends of the square column of the stud bolt from both ends of the terminal support plate; the two ends of the stud bolt are respectively installed by the threaded fastening bolt, and the two insulating sleeves are pressed on both ends of the terminal support plate.

[0008] Further, the terminal support plate is provided with two square holes for passing through the stud bolt.

[0009] Further, the size error of the square column of the stud bolt and the square hole of the terminal support plate is ± 0.5mm.

[0010] Further, the lengths of the two insulating sleeves are different.

[0011] Further, the size error of the square hole of the insulating sleeve and the square column of the stud bolt is ±0.5mm.

[0012] Further, the two insulating sleeves are matched by concave-convex structure at opposite end surfaces, and the insulating sleeve with the convex part is inserted into the insulating sleeve with the concave part.

[0013] (III) Beneficial Effects

[0014] The utility model provides a cable wall -penetrating terminal block with anti -loose function, including wiring branch board, insulating sleeve, stud bolt and fastening bolt, the utility model discloses the round hole of wiring branch board of cable wall -penetrating terminal board is changed into square hole, and the insulating sleeve cooperation part and the non -threaded portion of stud bolt in the two ends of wiring branch board are changed into square structure from round, when wall -penetrating terminal board assembly is completed, because the square structure of the intermediate square hole and insulating sleeve joint, can make in the cable assembly and the process of travelling crane, avoid the rotation of insulating sleeve and stud bolt because of cable fastening and travelling crane vibration, thereby leading to cable loose, avoid cable drop and happen accident. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is whole structure schematic diagram of the cable wall -penetrating terminal board of the utility model,

[0016] Figure 2 It is whole structure explosion drawing of the cable wall -penetrating terminal board of the utility model,

[0017] Figure 3a It is structure schematic diagram of long insulating sleeve in the utility model, Figure 3b It is structure schematic diagram of short insulating sleeve,

[0018] Figure 4 It is structure schematic diagram of stud bolt in the utility model,

[0019] Figure 5 It is assembly schematic diagram of stud bolt and wiring branch board in the utility model. DETAILED DESCRIPTION

[0020] In order to make the purpose, content and advantage of the utility model more clear, the specific implementation of the utility model is described in further detail below by combining with the drawings and examples.

[0021] The utility model proposes a cable wall -penetrating terminal board with anti -loose function, and the whole structure is as shown in Figure 1 And 2 Including wiring branch board 3, insulating sleeve 1, stud bolt 2 and fastening bolt 4, wherein the two round holes for passing through two stud bolts 2 on the wiring branch board 3 are changed into square holes. The structure of stud bolt 2 is as shown in Figure 4The intermediate non-threaded portion of the cable wall-through terminal board is changed from a circle to a square column with the same size (error is ±0.5mm) as the square hole of the terminal board 3. The two insulating sleeves 1 (including long and short insulating sleeves, as shown in Figure 3a and 3b The central hole of the two insulating sleeves 1 is a square hole with the same size (error is ±0.5mm) as the square column of the stud bolt 2, and the two insulating sleeves 1 adopt a concave-convex matching structure at the opposite end faces.

[0022] The square column of the stud bolt 2 penetrates into the square hole of the terminal board 3, which can prevent the stud bolt 2 from rotating during the cable assembly and the crane, as shown in Figure 5 The two insulating sleeves 1 are sleeved on the two ends of the square column of the stud bolt 2 by the two ends of the terminal board 3, and the concave-convex matching structure of the opposite end faces of the two insulating sleeves 1, the insulating sleeve 1 with a convex part is inserted into the insulating sleeve 1 with a concave part to achieve fitting, which can prevent the insulating sleeve 1 from rotating during the assembly and the crane. The two ends of the stud bolt 2 are respectively installed by the threaded fastening bolt 4, so as to press the two insulating sleeves 1 to the two ends of the terminal board 3.

[0023] The cable wall-through terminal board of the utility model, when the cable wall-through terminal board is assembled, because the combination of the intermediate square hole and the insulating sleeve 1 is a square structure, the insulating sleeve 1 and the stud bolt 2 can be prevented from rotating due to the cable fastening and the crane vibration during the cable assembly and the crane process, so as to cause the cable to be loose, and the cable is prevented from falling off and causing an accident.

[0024] The above only is the preferred embodiment of the utility model, it should be pointed out, for ordinary skilled person in the art, on the premise of not departing from the technical principle of the utility model, still can make several improvements and deformations, these improvements and deformations also should be regarded as the protection range of the utility model.

Claims

1. A cable wall-thru connector with anti-loosening function, characterized in that, The cable wall-through connector comprises a wiring board, an insulating sleeve, a stud bolt and a fastening bolt. The wiring board is provided with square holes for the stud bolt.

2. The cable wall-though junction block with anti-loosening function according to claim 1, characterized in that, The middle non-threaded part of the stud bolt is processed into a square column with the same size as the square hole of the wiring board.

3. The cable wall-entrance block with the anti-loosening function as claimed in claim 1, wherein The central holes of the two insulating sleeves are processed into square holes with the same size as the square column of the stud bolt.

4. The cable wall-entrance block with the anti-loosening function as claimed in claim 1, wherein The square column of the stud bolt is inserted into the square hole of the wiring board.

5. The cable wall-entrance block with the anti-loosening function as claimed in claim 1, wherein The square column of the stud bolt has a size error of ±0.5mm with the square hole of the wiring board.

6. The cable wall-entrance block with the anti-loosening function as claimed in claim 1, wherein The two insulating sleeves have different lengths. The square hole of the insulating sleeve has a size error of ±0.5mm with the square column of the stud bolt. The two insulating sleeves have concave-convex matching structures at the opposite end faces, and the insulating sleeve with a convex part is inserted into the insulating sleeve with a concave part.

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