CN112917422A

CN112917422A - Plug disassembling and fastening wrench for overhauling railway locomotive

Info

Publication number: CN112917422A
Application number: CN202110354873.2A
Authority: CN
Inventors: 王有恒; 敖磊; 王晨
Original assignee: Tianjin Locomotive Co ltd
Current assignee: Tianjin Locomotive Co ltd
Priority date: 2021-03-31
Filing date: 2021-03-31
Publication date: 2021-06-08

Abstract

The invention provides a plug disassembling and fastening wrench for overhauling a railway locomotive, which comprises two connecting rods, wherein one end of each connecting rod is a handle part, the other end of each connecting rod is a head part, and the two connecting rods are hinged through a hinge shaft; the head part is provided with an arc-shaped structure, and an anti-skid unit is arranged on the inner side of the arc-shaped structure and used for preventing the head part and the shell of the aviation plug to be disassembled and assembled from moving relatively; the end part of the clamp head part, which is far away from one end of the clamp handle part, is provided with a front end buckle, and the front end buckle is used for being inserted into a socket of an inner core of the aviation plug to be disassembled and assembled. The invention has the beneficial effects that: the plug disassembling and fastening wrench for overhauling the railway locomotive has simple force application, saves more labor compared with a hand, and is suitable for narrow space; the clamping surface is provided with the insection part made of hard plastic materials, so that the contact friction force is increased, and the damage to the plug when the plug is used is reduced relative to the contact surface of metal.

Description

Plug disassembling and fastening wrench for overhauling railway locomotive

Technical Field

The invention belongs to the field of railway locomotive maintenance tools, and particularly relates to a plug disassembling and fastening wrench for railway locomotive maintenance.

Background

In the field of locomotive maintenance, the most basic requirement of the aircraft plug is that the connection and fastening of the aircraft plug are firm, for example, the plug is not fastened in place, so that a circuit is connected in a virtual way, electrical components of a locomotive are easily burnt, and finally the locomotive is broken. However, in the actual production process, there are many inconveniences: due to the reasons of oil leakage, ash entering, aging and abrasion, poor working, deviation and the like, a large part of aviation plugs cannot be easily rotated in place when connected, and can be rotatably inserted only by using great strength; secondly, the plug needs to be screwed by fingers, the strength of part of female electricians is small, the plug cannot be screwed tightly, and the disassembly is very labor-consuming; thirdly, a plurality of aviation plugs are arranged side by side and have small gaps, if the plug in the middle is required to be disassembled, the plug in the middle is rotated down in space after the plug beside the plug is disassembled; and fourthly, parts of aviation plugs are remote in position and narrow in space, so that the design of the convenient and fast plug disassembling and fastening pliers with convenience in force application is particularly necessary.

Disclosure of Invention

In view of the above, the present invention is directed to a wrench for detaching and fastening a plug for repairing a railroad locomotive, so as to solve the above-mentioned problems.

In order to achieve the purpose, the technical scheme of the invention is realized as follows:

a plug disassembling and fastening wrench for overhauling a railway locomotive comprises two connecting rods, wherein one end of each connecting rod is a handle part, the other end of each connecting rod is a head part, and the two connecting rods are hinged through a hinge shaft;

the head part is provided with an arc-shaped structure, and an anti-skid unit is arranged on the inner side of the arc-shaped structure and used for preventing the head part and the shell of the aviation plug to be disassembled and assembled from moving relatively;

the end part of the clamp head part, which is far away from one end of the clamp handle part, is provided with a front end buckle, and the front end buckle is used for being inserted into a socket of an inner core of the aviation plug to be disassembled and assembled.

Furthermore, the head portions of the two connecting rods comprise curved bars, anti-slip strips are bonded on the end faces of the inner sides of the curved bars, and tooth-shaped grooves are formed in the inner sides of the anti-slip strips.

Furthermore, the anti-skid strip is detachably connected with the inner side of the curved bar and is a hard plastic structural part.

Furthermore, the distance from the end part of the clamp handle part far away from one end of the hinge shaft to the hinge shaft is greater than the distance from the end part of the clamp head part far away from one end of the hinge shaft to the hinge shaft.

Furthermore, a wire cutting blade is arranged between the clamp handles of the two connecting rods and used for cutting off the cable and the binding belt.

Furthermore, one end of the clamp handle part of each connecting rod, which is close to the hinge shaft, is provided with a return spring, and the end parts at the two ends of each return spring are respectively connected with the two connecting rods.

Furthermore, the clamp handle parts of the two connecting rods are sleeved with clamp handle rubber.

Compared with the prior art, the plug disassembling and fastening wrench for overhauling the railway locomotive has the following beneficial effects:

(1) the plug disassembling and fastening wrench for overhauling the railway locomotive has simple force application, saves more labor compared with a hand, and is suitable for narrow space;

(2) the clamping surface of the plug disassembling and fastening wrench for overhauling the railway locomotive is provided with the insection part made of hard plastic materials, so that on one hand, the contact friction force is increased, and on the other hand, the damage to the plug during use is reduced relative to the contact surface of metal;

(3) the plug disassembling and fastening wrench for overhauling the railway locomotive can be used for plugs with various sizes, and is simple in structure and low in cost.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic overall view of a plug disassembling and fastening wrench for overhauling a railway locomotive according to an embodiment of the present invention;

FIG. 2 is a partial schematic view of a plug removal wrench for railroad locomotive servicing according to an embodiment of the present invention;

fig. 3 is a schematic view of an aviation plug to be disassembled and assembled according to an embodiment of the present invention.

Description of reference numerals:

1-a connecting rod; 11-a jaw portion; 12-a head of the pliers; 13-a hinged axis; 2-front end buckle; 3-an aviation plug; 31-an inner core; 32-a housing; 33-a socket; 4-a curved bar; 5-anti-slip strips; 51-a toothed groove; 6-cutting the line blade; 7-a return spring; 8-rubber handle.

Detailed Description

It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.

The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

The structure of the scheme adopts a lever principle, is similar to that of a nipper pliers, the length of the pliers handle part 11 is greater than that of the pliers head part 12, and the use is labor-saving; meanwhile, the clamp head part 12 is thin, an arc-shaped structure is additionally arranged at the front end of the clamp head part, the radian is large, the clamp head part is suitable for plugs with various sizes, the clamp head part 12 is thin, so that the clamp head part can be applied to more practical scenes, for example, in the practical production process, two aviation plugs 3 to be disassembled and assembled are often close to each other, the situation is inconvenient for workers to screw by hands, and the workers cannot use strength, the clamp head part 12 is thin, and can be inserted between the adjacent aviation plugs 3 to realize the operation, and meanwhile, the plugs which cannot be screwed by hands can be easily disassembled; the inner side of the arc-shaped structure of the binding clip is adhered with a tooth-shaped structure made of hard plastic and used for clamping concave-convex parts of an external screw cap of an aviation plug 3, the structure can firmly clamp the screw cap of the plug, the size of a gear is small, the density is high, the gear is suitable for plugs of various models, the stress is uniform, the plug cannot be crushed, meanwhile, the tooth-shaped structure made of the adhered hard plastic is lower in hardness than that of a steel tooth-shaped structure on one hand, the aviation plug 3 is prevented from being damaged in the clamping process, on the other hand, the tooth-shaped structure made of the hard plastic can be replaced, and after the gear is used for a period of time, when the situation that the tooth pattern is abraded and skidded when in use is discovered; the spring is additionally arranged at the forceps handle, so that the assistance is provided when the forceps are opened and closed, and the use is convenient; the anti-skid rubber is additionally arranged at the tail end of the forceps handle, so that the friction force is increased, and the use safety is improved;

simultaneously this scheme installs two square salients additional at the tip of binding clip, because need carry out the suppression operation to shell interpolation needle in the in-service use process, consequently need separate shell and inner core, there is not specialized tool at present, when twisting the shell, because threaded connection's between shell and the inner core is tighter, the inner core can carry out coaxial rotation simultaneously at any time the shell, can't manually unpack the two apart with the hand, the square protrusion that this scheme provided corresponds with the socket 33 size of aviation plug 3 inner core 31, can block into the plug inner core 31 with square protrusion, make concentric rotatory plug inner core 31 no longer rotatory, play the buckle effect, be used for dismantling fastening plug housing, this scheme installs the cutting edge additional at the pliers afterbody simultaneously, can act as the wire clipper when the pliers closes and use, be used for cutting off cable or ribbon.

In the using process, the handle part 11 is held, and a plug which cannot be disassembled or screwed is clamped in the arc part of the head part 12; clamping the pliers to enable the tooth-shaped groove 51 at the jaw to be convexly clamped at the concave-convex part of the plug screwing cap; the clamp handle is rotated, and the plug can be easily disassembled or screwed by slowly and uniformly exerting force; when being used for dismantling fastening plug housing, block the draw-in groove of plug inner core 31 with front end buckle 2, slowly rotate plug housing, can be convenient dismantle fastening plug housing when with afterbody wire clipper, put into cutting edge department with cable or ribbon, slowly close the pincers handle can.

A plug disassembling and fastening wrench for overhauling a railway locomotive comprises two connecting rods 1, wherein one end of each connecting rod 1 is a wrench handle 11, the other end of each connecting rod 1 is a wrench head 12, and the two connecting rods 1 are hinged through a hinge shaft 13;

the tong head part 12 is of an arc structure, and an anti-skid unit is arranged on the inner side of the arc structure and used for preventing the tong head part 12 and the shell 32 of the aviation plug 3 to be disassembled and assembled from moving relatively;

the end part of the tong head part 12, which is far away from one end of the tong handle part 11, is provided with a front end buckle 2, and the front end buckle 2 is used for being inserted into a socket 33 of an inner core 31 of the aviation plug 3 to be disassembled and assembled.

The head portions 12 of the two connecting rods 1 respectively comprise a curved rod 4, anti-slip strips 5 are bonded on the end faces of the inner sides of the curved rods 4, and tooth-shaped grooves 51 are formed in the inner sides of the anti-slip strips 5.

The anti-skid strips 5 are detachably connected with the inner sides of the curved bars 4, and the anti-skid strips 5 are hard plastic structural members.

The end of the shank portion 11 remote from the hinge shaft 13 is spaced from the hinge shaft 13 by a distance greater than the end of the head portion 12 remote from the hinge shaft 13.

A thread cutting blade 6 is arranged between the clamp handle parts 11 of the two connecting rods 1 and is used for cutting off the cable and the binding belt.

And one end of the clamp handle parts 11 of the two connecting rods 1, which is close to the articulated shaft 13, is provided with a return spring 7, and the end parts of the two ends of the return spring 7 are respectively connected with the two connecting rods 1.

The clamp handle parts 11 of the two connecting rods 1 are sleeved with clamp handle rubber 8.

In a specific using process, the design of the scheme is made according to the actual existing problems, the practicability is high, time and labor are saved after feedback is used by workshop workers, and the working efficiency is improved;

finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. The utility model provides a railway locomotive overhauls dismantles fastening spanner with plug which characterized in that: the clamp comprises connecting rods (1), wherein one end of each connecting rod (1) is a clamp handle part (11), the other end of each connecting rod is a clamp head part (12), the number of the connecting rods (1) is two, and the two connecting rods (1) are hinged through a hinge shaft (13);

the clamp head part (12) is of an arc structure, and an anti-skidding unit is arranged on the inner side of the arc structure and used for preventing the clamp head part (12) and a shell (32) of the aviation plug (3) to be disassembled and assembled from moving relatively;

the end part of the clamp head part (12) far away from one end of the clamp handle part (11) is provided with a front end buckle (2), and the front end buckle (2) is used for being inserted into a socket (33) of an inner core (31) of the aviation plug (3) to be disassembled and assembled.

2. The railway locomotive overhauls and uses plug dismantlement fastening spanner of claim 1, characterized by that: the head parts (12) of the two connecting rods (1) comprise curved rods (4), anti-slip strips (5) are bonded on the end faces of the inner sides of the curved rods (4), and tooth-shaped grooves (51) are formed in the inner sides of the anti-slip strips (5).

3. The railway locomotive overhauls and uses plug dismantlement fastening spanner of claim 2, characterized by that: the anti-skid strips (5) are detachably connected with the inner side of the curved bar (4), and the anti-skid strips (5) are hard plastic structural members.

4. The railway locomotive overhauls and uses plug dismantlement fastening spanner of claim 1, characterized by that: the distance between the end part of the handle part (11) far away from one end of the hinge shaft (13) and the hinge shaft (13) is larger than the distance between the end part of the head part (12) far away from one end of the hinge shaft (13) and the hinge shaft (13).

5. The railway locomotive overhauls and uses plug dismantlement fastening spanner of claim 1, characterized by that: a thread cutting knife edge (6) is arranged between the clamp handle parts (11) of the two connecting rods (1) and is used for cutting off the cable and the ribbon.

6. The railway locomotive overhauls and uses plug dismantlement fastening spanner of claim 1, characterized by that: one end of the clamp handle part (11) of each connecting rod (1), which is close to the hinge shaft (13), is provided with a return spring (7), and the end parts of the two ends of the return spring (7) are respectively connected with the two connecting rods (1).

7. The railway locomotive overhauls and uses plug dismantlement fastening spanner of claim 1, characterized by that: the clamp handle rubber (8) is sleeved on the clamp handle parts (11) of the two connecting rods (1).