CN206899140U - A kind of new pulling out for R types locking pin tears device open - Google Patents

Abstract

The utility model belongs to the field of electric equipment detection tools, in particular to a puller for a novel R-shaped locking pin. The puller includes a square outer sleeve, inside the outer sleeve is provided with a slide rail along its length, the slide rail cooperates with the rack, the top of the rack is provided with a pull hook for hooking the R-shaped locking pin, the outer sleeve There is a gap on the side wall of the middle part, which communicates with the inside of the outer sleeve. There is a U-shaped groove on the side wall at the gap. engage. The utility model has simple structure and ingenious design, can quickly separate the R-shaped locking pin from the bowl head of the insulator, and reduces the working labor intensity of the staff.

Description

A new puller for R-shaped locking pin

technical field

The utility model belongs to the field of electric equipment detection tools, in particular to a puller for a novel R-shaped locking pin.

Background technique

R-type locking pin is a common locking component. Currently, in the field of electric power, R-type locking pin is an important component of high-tonnage suspension insulator strings. With the development of the power transmission industry, the amount of insulators is increasing, and the amount of locking pins is also increasing. Insulators will be damaged by self-explosion and flashover after long-term operation of the transmission line, and the insulators need to be replaced. During the replacement process, the locking pins of some insulators are not easy to pull out. Some R-type locking pins lose their elasticity at the hunchback and are out of stock, and the R-type locking pins need to be replaced. Most of the pin removers in the prior art manually use a hook to pull out the R-shaped locking pin from the bowl head of the insulator, which takes a lot of work and effort.

Utility model content

The purpose of this utility model is to provide a new puller for R-type locking pins. The utility model has a simple structure and ingenious design, and can quickly separate the R-type locking pins from the bowl head of the insulator, reducing the labor of the staff. strength.

For solving the problems of the technologies described above, the technical scheme that the utility model adopts is as follows:

A new type R-type locking pin puller, the puller includes a square outer sleeve, the outer sleeve is provided with a slide rail along its length, the slide rail cooperates with the rack, and the top of the rack is provided with a There is a notch on the side wall of the middle part of the outer sleeve, which is connected to the inside of the outer sleeve. There is a U-shaped groove on the side wall of the notch, and the two ends of the rotating shaft are respectively erected on two U-shaped In the groove, a gear is arranged on the rotating shaft, and the gear meshes with the rack.

Preferably, one end of the rotating shaft extends outward and is connected with the rocker.

Preferably, the groove body of the U-shaped groove is provided with a lower groove, the lower groove is in clearance fit with the bearing shell, and the two ends of the rotating shaft are in fit with the bearing inner shell.

Preferably, a return spring is provided on the outer sleeve, one end of the return spring is connected to the side wall of the outer sleeve, and the other end is connected to the bearing shell.

Preferably, the return spring is arranged along a direction parallel to the groove.

Preferably, the rocker includes a rocker arm and a handle vertical to the rocker arm, and the rocker arm is a telescopic rod with adjustable length.

The use process of the utility model is as follows: first shake the handle, the handle drives the rotating shaft to rotate in the bearing through the rocker arm, the rotating shaft drives the gear to rotate, the rack meshed with the gear moves outward along the slide rail of the outer sleeve, and then the staff pulls the hook Probe into the bowl head of the insulator and hook the arc-shaped end of the R-shaped locking pin, reversely rotate the gear, so that the gear drives the rack to move to the inside of the outer sleeve, and pull the R-shaped locking pin out of the bowl head. . After the R-shaped locking pin is separated from the hook, overcome the elastic force of the return spring, move the rotating shaft connected with the bearing along the lower groove of the U-shaped groove for a certain distance, so that the gear and the rack are separated, and then the staff can push the gear against the gear by hand. The rack makes the rack reset quickly without the need for the gear to drive the rack to reset. After the rack is reset, the rotating shaft and the bearing are automatically reset under the action of the return spring to carry out the pulling-out operation of the next R-shaped locking pin.

The length of the rocker arm can be adjusted, thereby adjusting the torque and reducing the applied force of the handle.

Compared with the prior art, the utility model has the following advantages: the utility model has a simple structure and ingenious design, can quickly separate the R-shaped locking pin from the bowl head of the insulator, and reduces the labor intensity of the staff.

Description of drawings

Fig. 1 is the structural representation of the novel R-type locking pin puller in the specific embodiment;

Fig. 2 is a cross-sectional view of the locking connection between the R-shaped locking pin and the bowl head of the insulator in the prior art.

detailed description

In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

As shown in Figure 1, a new type of puller for R-shaped locking pins, the puller includes a square outer sleeve 1, the outer sleeve 1 is provided with a slide rail along its length, the slide rail and the rack 10, the top of the rack 10 is provided with a hook 11 for hooking the R-shaped locking pin, and a gap 2 is opened on the side wall of the middle part of the outer sleeve 1, and the gap 2 communicates with the inside of the outer sleeve, and the side wall at the gap 2 A U-shaped groove 3 is provided, and the groove body of the U-shaped groove 3 is provided with a lower groove 31. The lower groove 31 cooperates with the shell of the bearing 4 with clearance, and the two ends of the rotating shaft 5 cooperate with the inner shells of the two bearings 4 respectively. The rotating shaft 4 is provided with a gear 6, the gear 6 meshes with the rack 10, and one end of the rotating shaft 5 extends outwards and is connected with the rocker. The rocker includes a rocker 7 and a handle 8 of the vertical rocker 7. The length of the rocker 7 is adjustable. telescoping rod. Outer sleeve 1 is provided with back-moving spring 9, and one end of back-moving spring 9 is connected with outer sleeve 1 side wall, and the other end is connected with bearing 4 shell, and back-moving spring 9 is arranged along the direction of parallel lower groove track 31.

The use process of the utility model is as follows: first shake the handle, the handle drives the rotating shaft to rotate in the bearing through the rocker arm, the rotating shaft drives the gear to rotate, the rack meshed with the gear moves outward along the slide rail of the outer sleeve, and then the staff pulls the hook Probe into the bowl head of the insulator and hook the arc-shaped end of the R-shaped locking pin, reversely rotate the gear, so that the gear drives the rack to move to the inside of the outer sleeve, and pull the R-shaped locking pin out of the bowl head. . After the R-shaped locking pin is separated from the hook, overcome the elastic force of the return spring, move the rotating shaft connected with the bearing along the lower groove of the U-shaped groove for a certain distance, so that the gear and the rack are separated, and then the staff can push the gear against the gear by hand. The rack makes the rack reset quickly without the need for the gear to drive the rack to reset. After the rack is reset, the rotating shaft and the bearing are automatically reset under the action of the return spring to carry out the pulling-out operation of the next R-shaped locking pin.

The length of the rocker arm can be adjusted, thereby adjusting the torque and reducing the applied force of the handle.

Claims (6)

1. a kind of new pulling out for R types locking pin tears device open, it is characterised in that described pull out tears device open and include square outer sleeve, in outer sleeve Slide rail is provided with along its length, and slide rail coordinates with rack, and the drag hook for being used for mounting R type locking pins, overcoat are provided with the top of rack Open up jagged in cylinder middle part of sliding channel, breach and outer sleeve inside connect, and the side wall of indentation, there is provided with U-type groove, rotating shaft both ends It is set up in respectively in two U-type grooves, rotating shaft is provided with gear, wheel and rack engagement.

2. new pulling out for R types locking pin as claimed in claim 1 tears device open, it is characterised in that described rotating shaft one end stretches out And it is connected with rocking bar.

3. new pulling out for R types locking pin as claimed in claim 1 tears device open, it is characterised in that is opened up on the cell body of the U-type groove There is recessed conduit, recessed conduit coordinates with bearing case gap, and rotating shaft both ends coordinate with bearing inner casing.

4. new pulling out for R types locking pin as claimed in claim 3 tears device open, it is characterised in that the outer sleeve, which is provided with, to be resetted Spring, back-moving spring one end are connected with outer sleeve side wall, and the other end is connected with bearing case.

5. new pulling out for R types locking pin as claimed in claim 4 tears device open, it is characterised in that the back-moving spring is along under parallel The direction of groove track is set.

6. new pulling out for R types locking pin as claimed in claim 2 tears device open, it is characterised in that the rocking bar include rocking arm and The handle of vertical rocker-arm, rocking arm are the expansion link of adjustable in length.