CN209970622U

CN209970622U - Special tool for fastening HF-7 branch cable box root screw

Info

Publication number: CN209970622U
Application number: CN201920339986.3U
Authority: CN
Inventors: 刘宗波; 王纪涛; 王晓杰; 张大公; 王威; 成方
Original assignee: Rizhao Port Group Co Ltd Railway Transportation Co
Current assignee: Rizhao Port Group Co Ltd Railway Transportation Co
Priority date: 2019-03-18
Filing date: 2019-03-18
Publication date: 2020-01-21
Anticipated expiration: 2029-03-18

Abstract

A special tool for fastening screws at the root of an HF-7 branch cable box relates to a maintenance device for a railway signal cable direction box, in particular to a special tool for fastening screws at the root of an HF-7 branch cable box. The U-shaped clamping groove is vertically fixed at the lower end of the supporting rod, and the U-shaped clamping groove is matched with an HF-7 branch cable box root screw; the two sides of the U-shaped clamping groove are provided with arc-shaped edges, the inner side of the U-shaped clamping groove is provided with fastening lines, and the rear side of the U-shaped clamping groove is provided with an arc-shaped rear wall. The utility model discloses have labour saving and time saving, save operating time, improve maintenance efficiency's positive effect.

Description

Special tool for fastening HF-7 branch cable box root screw

Technical Field

The utility model relates to a railway signal cable direction box maintenance device belongs to a HF-7 branch very much and fastens specialized tool to cable box root screw.

Background

The railway signal branching cable box or the direction cable box is used for a railway signal system trunk branch and comprises two types of HF-7 and HF-4. The HF-7 branch cable box has central cable leading-in hole as main cable, seven peripheral cable leading-in holes as auxiliary cables, seven cables in different directions, seven bent six-post distributing terminals inside the box, and four additional terminals as required. When a signal worker overhauls equipment or processes the looseness of the nut at the root of the cable box, a large amount of time is consumed during maintenance due to the fact that the wiring terminals of the direction box are numerous. At present, when the screw of the root of the direction box is loosened, the nut of the root of the cable box is extremely time-consuming and labor-consuming to fasten due to the fact that no special tool is provided.

Disclosure of Invention

An object of the utility model is to provide a HF-7 branch is to cable box root screw fastening specialized tool to reach labour saving and time saving, save operating time, improve maintenance efficiency's purpose.

The utility model provides a HF-7 branch cable box root screw fastening specialized tool, including handle, bracing piece and U-shaped draw-in groove, the handle is connected to one end of bracing piece, the U-shaped draw-in groove of the other end of bracing piece, characterized in that, the U-shaped draw-in groove is fixed perpendicularly at the lower extreme of bracing piece, U-shaped draw-in groove and HF-7 branch cable box root screw looks adaptation; the two sides of the U-shaped clamping groove are provided with arc-shaped edges, the inner side of the U-shaped clamping groove is provided with fastening lines, and the rear side of the U-shaped clamping groove is provided with an arc-shaped rear wall.

The utility model provides a HF-7 branch is to cable box root screw fastening specialized tool, U type draw-in groove and HF-7 branch are to cable box root screw looks adaptation, the convex edge mounting of U type draw-in groove both sides is in HF-7 branch to the both sides of cable box root screw, the inboard fastening line of U type draw-in groove and HF-7 branch are to cable box root screw in close contact with, the convex back wall of U type draw-in groove rear side is fixed at HF-7 branch rear end to cable box root screw, U type draw-in groove is fixed at HF-7 branch root to cable box root screw, prevent effectively that the screw from rotating, influence the dismantlement etc. of terminal. Therefore, the utility model discloses have labour saving and time saving, save operating time, improve maintenance efficiency's positive effect.

Drawings

The accompanying drawings partially disclose embodiments of the present invention, in which,

fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic structural diagram of the U-shaped slot of the present invention.

Detailed Description

As shown in fig. 1 and 2, the special tool for fastening the HF-7 branch to the root screw of the cable box provided by the present invention comprises a handle 1, a support rod 2 and a U-shaped slot 3, wherein one end of the support rod 2 is connected with the handle 1, the other end of the support rod 2 is provided with the U-shaped slot 3, the U-shaped slot 3 is vertically fixed at the lower end of the support rod 2, and the U-shaped slot 3 is matched with the HF-7 branch to the root screw of the cable box; the two sides of the U-shaped clamping groove 3 are provided with circular arc-shaped edges 31, the inner side of the U-shaped clamping groove 3 is provided with fastening lines 32, and the rear side of the U-shaped clamping groove 3 is provided with a circular arc-shaped rear wall 33.

The utility model discloses when using, at first, hand handle 1, place U type draw-in groove 3 in HF-7 branch to cable box root screw, the convex edge 31 of 3 both sides of U type draw-in groove is fixed in HF-7 branch to the both sides of cable box root screw, 3 inboard fastening lines 32 of U type draw-in groove are to cable box root screw in close contact with HF-7 branch, the convex back wall 33 of 3 backs of U type draw-in groove is fixed at HF-7 branch to the rear end of cable box root screw, U type draw-in groove 3 is fixed at the root of HF-7 branch to cable box root screw, fix HF-7 branch to cable box root screw firmly, prevent its rotation. And (3) holding the sleeve by the other hand, aligning the sleeve with the nut on the HF-7 branch cable box root screw, rotating the sleeve, disassembling the nut, disassembling the wiring terminal and the like.

The lower end of the handle 1 is provided with a connecting rod 11, and the lower end of the connecting rod 11 is provided with a U-shaped fixing groove 12; an internal thread is arranged in the U-shaped fixing groove 12, and an external thread matched with the internal thread is arranged at the upper end of the supporting rod 2. Bracing piece 2 and 1 swing joint of handle, 3 lug weld of U type draw-in groove are at 2 lower extremes of bracing piece, perhaps U type draw-in groove 3 is as an organic whole with bracing piece 2 is direct by stainless steel, when 3 wearing and tearing of U type draw-in groove, U type draw-in groove 3 and bracing piece 2 that conveniently renew.

The handle 1 is provided with the insulating protective sleeve 13, the insulating protective sleeve 13 is made of insulating rubber, insulating plastic and the like, and the insulating protective sleeve 13 can prevent accidental electric shock. The surface of insulating protective sheath 13 is provided with anti-skidding line, and anti-skidding line can increase frictional force, conveniently grips handle 1.

Foretell bracing piece 2 length is 8cm, can put into the saddlebag, satisfies outdoor operations's demand, convenient to carry.

The inner diameter of the U-shaped clamping groove 3 is 5-6 mm. The U-shaped clamping groove 3 is matched with the HF-7 branch cable box root screw, the U-shaped clamping groove 3 needs to just clamp the HF-7 branch cable box root screw, the U-shaped clamping groove 3 is made of 304 steel with the thickness of 3.5mm, and the diameter of the U-shaped clamping groove 3 is 5mm, 6mm or within the range of 5-6 mm.

Through practice, if not use the utility model provides an HF-7 branch is to cable box root screw fastening specialized tool, overhauls HF-7 branch and when cable box root screw, nut are not hard up, and HF-7 branch of installation takes 7.6 minutes to cable box binding post need be taken time averagely to the stitches. If use the utility model provides a HF-7 branch is to cable box root screw fastening specialized tool, overhauls HF-7 branch and need only consuming time 1 minute to cable box root screw, nut when not hard up, and HF-7 branch of installation of averagely taking out stitches has saved the activity duration greatly, has improved maintenance efficiency to cable box binding post.

Claims

1. A special tool for fastening a screw at the root of an HF-7 branch cable box comprises a handle (1), a support rod (2) and a U-shaped clamping groove (3), wherein one end of the support rod (2) is connected with the handle (1), and the other end of the support rod (2) is provided with the U-shaped clamping groove (3), and is characterized in that the U-shaped clamping groove (3) is vertically fixed at the lower end of the support rod (2), and the U-shaped clamping groove (3) is matched with the screw at the root of the HF-7 branch cable box; arc-shaped edges (31) are arranged on two sides of the U-shaped clamping groove (3), fastening lines (32) are arranged on the inner side of the U-shaped clamping groove (3), and an arc-shaped rear wall (33) is arranged on the rear side of the U-shaped clamping groove (3).

2. The HF-7 branch cable box root screw fastening special tool according to claim 1, characterized in that the lower end of the handle (1) is provided with a connecting rod (11), and the lower end of the connecting rod (11) is provided with a U-shaped fixing groove (12); an internal thread is arranged in the U-shaped fixing groove (12), and an external thread matched with the internal thread is arranged at the upper end of the supporting rod (2).

3. HF-7 directional cable box root screw fastening special tool according to claim 1, characterized in that the handle (1) is provided with an insulating protective sleeve (13), the surface of the insulating protective sleeve (13) is provided with anti-slip lines.

4. The special HF-7 directional cable box root screw fastening tool as set forth in claim 1, wherein the U-shaped slot (3) has an inner diameter of 5-6 mm.