CN201664891U

CN201664891U - Tension spring wrench

Info

Publication number: CN201664891U
Application number: CN2009203508034U
Authority: CN
Inventors: 李斌
Original assignee: China Shenhua Energy Co Ltd; Shenhua Baoshen Railway Co Ltd
Current assignee: China Shenhua Energy Co Ltd; Shenhua Baoshen Railway Co Ltd
Priority date: 2009-12-29
Filing date: 2009-12-29
Publication date: 2010-12-08
Anticipated expiration: 2019-12-29

Abstract

The utility model relates to a tension spring wrench, which comprises a handle, an elbow mounted at the end of the handle and a coupler knuckle part matched to the elbow, the elbow is of a groove structure made of board materials, the elbow is provided with a first pin hole penetrating the groove structure, the coupler knuckle part is adapted to the board material structure which is mounted in the groove structure, and the coupler knuckle part is provided with a second pin hole which is adpated to the first pin hole, a through pin is connected with the coupler knuckle part and the elbow by passing through the first pin hole and the second pin hole. The utility model has advantages that the time can be saved, previously, one spring bar is mounted or dismounted for 5-6 minites, now, only 10-20 seconds is ok; the utility model is safe, without danger operations such as irn hammer beating and prying the spring bar by a prying roller; the power can be saved, the lever principle can be utilized sufficiently to dismount or mount the spring bar easily; the material cost can be saved, the condition of the spring bar damage during turnout junction operating can be reduced greatly.

Description

A kind of extension spring spanner

Technical field

The utility model relates to a kind of extension spring spanner, particularly relates to a kind of extension spring spanner that is used to change railway I I I type spring.

Background technology

Along with the progressively enforcement of the refreshing railway capacity expansion revamping of bag, the strategic step of running business big and strong, eastern line plan freight volume had reached 8,300 ten thousand tons in 09 year.Increase needs in order to adapt to the freight volume of advancing by leaps and bounds, the Ulan Mulun station changes 60kg/m-9# concrete pillow track switch by positive line switch into by 50kg/m-9# sleeper track switch, this track switch is installed on III type spring, and this spring is different fully with I, II type spring structure commonly used in the past.Owing to do not have special dismounting and erecting tools in the prior art, when in the ordinary maintenance maintenance work, changing damaged III type spring, can only beat with crowbar with iron hammer and prize, just can pull down or set up one in 5-6 minute, and in whole process, III type spring also is easily damaged.

The utility model content

The purpose of this utility model is, overcome the defective of above-mentioned prior art and provide a kind of and can save working time, raise labour efficiency, economical with materials expense extension spring spanner.

For achieving the above object, the utility model is taked following design:

A kind of extension spring spanner, comprise handle, be installed in the elbow of described handle end and the hook tongue spare that matches with described elbow, described elbow is the groove shape structure that sheet material is made, on described elbow, have first pin-and-hole that runs through described groove shape structure, described hook tongue spare is the adaptive plate construction that is installed in the described groove shape structure, and have on the described hook tongue spare and the second suitable pin-and-hole of described first pin-and-hole, wear pin and pass described first pin-and-hole and be connected described hook tongue spare and elbow with second pin-and-hole.

Preferably, described elbow is made groove shape structure by steel plate.

Preferably, described hook tongue spare is that the steel plate cutting forms, and its thickness matches with the recess width of described groove shape structure.

The utility model has the advantages that:

1, saves time, pulled down or set up a spring, and only can finish second now in former 5-6 minute with 10-20;

2, safety need not iron hammer and impacts and dangerous play such as crowbar sled spring;

3, laborsaving, make full use of lever principle, easily the dismounting spring;

4, economical with materials expense has reduced the situation of damaging spring widely in the track switch operation.

Description of drawings

Fig. 1 is a structural representation of the present utility model.

The specific embodiment

Referring to Fig. 1, the preferred embodiment of a kind of extension spring spanner of the utility model shown in it, comprise handle 1, be installed in the elbow 2 of described handle 1 end and the hook tongue spare 4 that matches with described elbow, in the present embodiment, described elbow 2 is made groove shape structure by steel plate, on described elbow 2, have first pin-and-hole that runs through described groove shape structure, described hook tongue spare 4 is the adaptive plate construction that is installed in the described groove shape structure, preferably, described hook tongue spare 4 forms for the steel plate cutting, its thickness matches with the recess width of described groove shape structure, and have on the described hook tongue spare 4 and the second suitable pin-and-hole of described first pin-and-hole, wear pin 3 and pass described first pin-and-hole and be connected described hook tongue spare 4 and elbow 2 with second pin-and-hole.Preferably, the shape of described hook tongue spare 4 matches with the structure for the treatment of dismounting.In the utility model, the shape of described hook tongue spare 4 matches with the structure of III type spring.

Particularly, in concrete the application, the handle of the utility model extension spring spanner is the steel pipe of 0.95 meter long diameter 35mm, and the groove shape made by elbow 2 usefulness steel plates and handle 1 welding back is offered on elbow First pin-and-hole.Use again

Steel plate is cut into as shown in Figure 1 hook tongue spare 4 and stamps simultaneously

Second pin-and-hole.Behind hook tongue spare 4 insertion grooves, use

The pin 3 of wearing handle 1, elbow 2 and hook tongue spare 4 are connected into integral body.When track switch is changed its course dismounting (or replacing) III type spring, utilize lever principle, utilize the front end of elbow 2 to be fulcrum at branch backing plate edge, hook spring with the utility model lower hook tongue spare 4, easily dismounting III type spring.

Obviously, those of ordinary skill in the art can constitute various types of spanners with a kind of extension spring spanner of the present utility model.

The foregoing description is only for the usefulness that the utility model is described; and be not to be to restriction of the present utility model; the those of ordinary skill in relevant technologies field; under the situation that does not break away from the utility model scope; can also make various variations and modification; therefore all technical schemes that are equal to also should belong to category of the present utility model, and scope of patent protection of the present utility model should be limited by each claim.

Claims

1. extension spring spanner, it is characterized in that: comprise handle (1), be installed in the elbow (2) of described handle (1) end and the hook tongue spare (4) that matches with described elbow, the groove shape structure that described elbow (2) is made for sheet material, on described elbow (2), have first pin-and-hole that runs through described groove shape structure, described hook tongue spare (4) is the adaptive plate construction that is installed in the described groove shape structure, and have on the described hook tongue spare (4) and the second suitable pin-and-hole of described first pin-and-hole, wear pin (3) and pass described first pin-and-hole and be connected described hook tongue spare (4) and elbow (2) with second pin-and-hole.

2. extension spring spanner according to claim 1 is characterized in that: described elbow (2) is made groove shape structure by steel plate.

3. extension spring spanner according to claim 2 is characterized in that: described hook tongue spare (4) forms for the steel plate cutting, and its thickness matches with the recess width of described groove shape structure.