CN203109895U

CN203109895U - Dismounting pincers for piston rings

Info

Publication number: CN203109895U
Application number: CN 201320152153
Authority: CN
Inventors: 付雯; 王梦翔; 李响
Original assignee: Chongqing College of Electronic Engineering
Current assignee: Chongqing College of Electronic Engineering
Priority date: 2013-03-29
Filing date: 2013-03-29
Publication date: 2013-08-07
Anticipated expiration: 2023-03-29

Abstract

The utility model discloses a pair of dismounting pincers for piston rings. The pair of dismounting pincers for the piston rings comprises a left pincer arm and a right pincer arm, wherein the left pincer arm and the right pincer arm are respectively provided with a handle, the left pincer arm and the right pincer arm are connected through a connecting component in a rotary mode. The pair of dismounting pincers for the piston rings is characterized in that a left notch and a right notch are formed at the position of pincer openings of the left pincer arm and the right pincer arm respectively, the left notch and the right notch are located in the outer end surfaces of the pincer openings, and the pair of dismounting pincers for the piston rings further comprises a rubber belt, wherein two ends of the rubber belt are connected with the outer end surfaces of the left pincer arm and the right pincer arm respectively. The pair of dismounting pincers for the piston rings is high in generality, simple in structure, capable of dismounting the piston rings conveniently and capable of avoiding the situation that the piston rings pop up to hurt people.

Description

Piston ring tongs

Technical field

The utility model relates to a kind of instrument of dismounting piston ring, particularly can be for convenience detach and the piston ring tongs of assembling piston ring.

Background technology

Piston ring is part indispensable in many internal combustion engines and the pump, yet, owing in running, occur damaging through regular meeting.This just need dismantle and assemble piston ring.At present, the dismounting piston ring mainly adopts following dual mode to finish: first kind is free-hand dismounting.When dismounting, piston vertically is placed on the workbench, two hand thumbs scratch gap-clearance of piston rings place, forefinger is just pushed down piston crown, middle finger buttresses the piston ring of preparing dismounting, when thumb is slowly firmly treated the piston ring internal diameter slightly greater than the piston head diameter to two ends, namely parallelly packs into or takes out.But owing to adopt the bothersome effort of the method dismounting, and in disassembly process, dynamics is difficult for grasping, and easily piston ring is fractureed.Another kind of dismounting mode is to adopt piston ring to rise and clamp piston ring is carried out dismounting.In a kind of piston ring of on November 22nd, 1989 bulletin pincers that rise, it is made up of the rise adjuster of ring clamp head spreading degree of pincers wall, the ring clamp head that rises that is fixed on pincers wall vice jaw part, adjusting as China national Department of Intellectual Property.When using piston ring to rise by pincers dismounting piston ring, at first selected the rising of determining according to the piston ring size for the treatment of dismounting of shining degree push-and-pull adjuster that open clamped the stretching degree of jaw, then piston ring is held in the piston ring port supporting plate insertion piston ring below of binding clip, make piston ring port clamping stagnation angle district between piston ring port supporting plate and U-shaped piston ring port clamp, jaw is opened in reinforcing to the pincers wall, and piston ring is thereupon by spreading.Piston ring can be by pulling down on the piston or be assembled on the piston, unclamps the pincers wall pincers jaw closure that rises then, and the piston ring disassemble and assemble work finishes.

By piston ring pincers though dismounting has solved the piston ring frangibility and has been difficult to dismounting to piston ring the problem that rises, but also there is following shortcoming: complex structure, manufacture difficulty is big, simultaneously, when dismounting, under the effect of pincers wall, piston ring is subjected to outside tension force, occur the outwards situation of ejection easily, thereby near the staff's of bullet wound situation occurs.And after piston ring is ejected, need look round for, cumbersome.

The utility model content

The purpose of this utility model is to provide a kind of simple in structure and can prevent the piston ring tongs that piston ring outwards ejects in order to solve above-mentioned the deficiencies in the prior art.

To achieve these goals, the piston ring tongs that the utility model is designed, it comprises left clamp arm and the right clamp arm that has handle, described left clamp arm is connected by the coupling assembling rotary type with right clamp arm, it is characterized in that being provided with left and right notch at the jaw place of left clamp arm and right clamp arm, described left and right notch is positioned at the outer face of jaw, and it comprises that also two ends are connected to the rubber strip on left clamp arm and the right clamp arm outer face.

In order to increase the versatility of rubber strip, described rubber strip is adjustable, and an end of rubber strip is fixedly connected, and the other end is movably connected on the outer face of left clamp arm or right clamp arm.

In order to realize the adjusting of rubber strip, be provided with in the outer face of left clamp arm or right clamp arm one fixedly the protruding of rubber strip buckle, be provided with several and the protruding installing hole that matches of buckleing at the adjustable end of rubber strip.

The piston ring tongs that the utility model obtains has following advantage:

1, simple in structure, cost is low and be easy to carry, and has the higher market competitiveness.

2, connect rubber strip by the outer face at the pincers wall, when using the dismounting pincers to carry out dismounting, rubber strip is enclosed within outside the piston ring, and when piston ring ejected, rubber strip will play a baffle plate and buffering, makes that piston ring is difficult for outwards ejecting.

3, adjustable by rubber strip is arranged to, increase the versatility of piston ring tongs, in use, can adjust the length of rubber strip according to the size of piston ring, and then when the assembling piston ring, the length that only needs to adjust rubber strip gets final product better fixed piston ring.

Description of drawings

Fig. 1 is the overall structure schematic diagram of piston ring tongs among the embodiment;

Fig. 2 is the schematic perspective view of piston ring tongs among the embodiment;

Fig. 3 is rubber strip and protruding view of buckleing when interlocking among the embodiment.

Among the figure: left clamp arm 1, left notch 11, right clamp arm 2, right notch 21, coupling assembling 3, rubber strip 4, installing hole 41, protrudingly buckle 5.

The specific embodiment

Below in conjunction with drawings and Examples the utility model is further specified.

Embodiment:

The piston ring tongs that present embodiment provides, as shown in Figure 1 and Figure 2, it comprises left clamp arm 1 and the right clamp arm 2 that has handle, is provided with coupling assembling 3 between left clamp arm 1 and right clamp arm 2, described left clamp arm 1 is connected by coupling assembling 3 rotary types with right clamp arm 2; Be provided with left notch 11, the right notch 21 that matches with the piston ring port at the jaw place of left clamp arm 1 and right clamp arm 2, it comprises that also two ends are connected to the rubber strip 4 on left clamp arm 1 and right clamp arm 2 outer faces, and the rubber strip 4 after the connection forms a collar that matches with piston ring; Described rubber strip 4 is adjustable, and an end of rubber strip 4 is fixedly connected, and the other end is movably connected on the outer face of left clamp arm 1 or right clamp arm 2.

In order to be arranged to rubber strip 4 adjustable, increase the versatility of piston ring tongs, be provided with in the outer face of left clamp arm 1 or right clamp arm 2 one fixedly the protruding of rubber strip 4 buckle 5, be provided with several at rubber strip 4 adjustable ends and buckle the 5 installing hole 41(that match as shown in Figure 3 with protruding).

In the specific implementation, the adjustable structure of rubber strip 4 also can be realized in the following way: can regulate at rubber strip 4 on the inwall of an end and evenly be provided with several helical teeth, be provided with the collar for socket rubber strip 4 in the outer face of left clamp arm 1 or right clamp arm 2, in the collar, be provided with the double wedge that matches with helical teeth.

Above-mentioned coupling assembling 3 comprises Connection Block, is provided with an installation column at the Connection Block middle part, is with a laborsaving spring at the installation column, and an end of laborsaving spring is fixedlyed connected with left clamp arm 1, and the other end is fixedlyed connected with right clamp arm 2.

Hold tight piston ring tongs for convenience, the handle middle part in the present embodiment is provided with the hand-hold hole that inserts for finger.Simultaneously, form an obtuse angle between the handle in the present embodiment and left clamp arm 1 and the right clamp arm 2, and handle outwards opens.

Concrete use with regard to present embodiment is explained as follows below:

When removing of piston ring, with handle orientations up, and rubber strip 4 is enclosed within outside the piston ring, and adjusts the diameter of rubber strip 4 collar that forms according to the size of piston ring.After rubber strip 4 adjustings are suitable, the left notch 11 at left clamp arm 1 and right clamp arm 2 jaw places and right notch 21 are aimed at the port of piston rings, and simultaneously handle is pressed to the middle part, at this moment, left clamp arm 1 and right clamp arm 2 outwards open under the active force of handle, and piston ring strutted, thereby make piston ring come off.Because rubber strip 4 is positioned at outside the piston ring, so when piston ring comes off, can not be bound to other place, avoided the phenomenon of the outer bullet of piston ring.

When the assembling piston ring, with piston ring set on the right notch 21 of the left notch 11 of left clamp arm 1 and right clamp arm 2, and inside extrusion handle, left clamp arm 1 and right clamp arm 2 are strutted piston ring, simultaneously with jaw down, mobile piston ring dismounting pincers, piston ring moved to correct position after, slowly loosen finger, left clamp arm 1 and right clamp arm 2 are inwardly tightened up.At this moment, piston ring will break away from left notch 11 and right notch 21, thereby assembles successfully.

Need to prove at last, above embodiment is only in order to the technical solution of the utility model to be described but not the restriction technologies scheme, although the applicant has been described in detail the utility model with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, those are made amendment to the technical solution of the utility model or are equal to replacement, and do not break away from aim and the scope of the technical program, all should be encompassed in the middle of the claim scope of the present utility model.

Claims

1. piston ring tongs, it comprises left clamp arm (1) and the right clamp arm (2) that has handle, described left clamp arm (1) is connected by coupling assembling (3) rotary type with right clamp arm (2), it is characterized in that being provided with left and right notch (11,21) at the jaw place of left clamp arm (1) and right clamp arm (2), described left and right notch (11,21) is positioned at the outer face of jaw, and it comprises that also two ends are connected to the rubber strip (4) on left clamp arm (1) and right clamp arm (2) outer face.

2. piston ring tongs according to claim 1 is characterized in that described rubber strip (4) for adjustable, and an end of rubber strip (4) is fixedly connected, and the other end is movably connected on the outer face of left clamp arm (1) or right clamp arm (2).

3. piston ring tongs according to claim 1 and 2, it is characterized in that being provided with fixedly protruding a button (5) of rubber strip (4) in the outer face of left clamp arm (1) or right clamp arm (2), be provided with the installing hole (41) that several match with protruding button the (5) at the adjustable end of rubber strip (4).