CN211162152U

CN211162152U - Chain locking pliers for cutting pipes

Info

Publication number: CN211162152U
Application number: CN201921532398.8U
Authority: CN
Inventors: 李明德; 李毅
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-09-16
Filing date: 2019-09-16
Publication date: 2020-08-04
Anticipated expiration: 2029-09-16

Abstract

The utility model discloses a chain locking pliers for cutting pipes, which comprises a chain, a pliers body and a cutting part, the cutting piece is hinged at the end part of the movable tong head and consists of a triangular clamping piece, a roller sharp-edge cutter and a fixed pin, one corner of the triangular clamping piece is hinged at the end part of the movable tong head, the roller sharp-edge cutting knife is hinged at the other two corners of the triangular clamping piece through a fixing pin, one end of the chain is also hinged on the triangular clamping piece through a fixing pin, the chain is a roller chain, the roller chain consists of rollers, chain pieces and chain pins, the chain pins extend out of two sides of the chain pieces, the roller is arranged on the chain pin, the height of the roller is greater than that of the chain piece, a clamping part is arranged at one end, away from the adjusting bolt, of the large clamp handle, and a pin groove corresponding to the chain pin on the chain is formed in the clamping part. The utility model discloses simple structure, convenient to use improve the quality and the efficiency of cutting.

Description

Chain locking pliers for cutting pipes

Technical Field

The utility model relates to a locking pliers technical field, concretely relates to chain locking pliers of tubular product cutting.

Background

The locking pliers are widely used in life, generally have a clamping function, become an indispensable hand tool in daily maintenance and processing in the world today in order to bind and tighten irregular or regular objects, and have a chain type locking pliers, for example, chinese patent No. 201120449813.0 discloses a chain type filter wrench, but it has a single function, and the outer diameter of the object to be tightened is difficult to adjust, the Chinese patent with the patent number '201821269529.3' discloses a locking pliers with chain cutting function for the above problems, and chinese patent No. 201821276664.0 discloses a chain type locking pliers with cutting function, which solves the problems of the chain type filter wrench with application No. 201120449813.0, but the two patents have other problems as follows:

in the locking pliers patent with the chain having the cutting function of patent number "201821269529.3", because the cutting pieces are mounted on each pin shaft of the chain, it is difficult to ensure that all the cutting pieces are located on the same plane during cutting, which causes the problems of serious end damage of the cut pipe, such as more burrs, and damaged pipe wall.

In the chain formula locking pliers patent that has a cutting function of patent number "201821276664.0", because the activity binding clip adopts the Z style of calligraphy, when cutting tubular product, lead to having the clearance between chain and the tubular product, especially when cutting the less tubular product of pipe diameter, can lead to tubular product to slide, cause the relatively poor problem of cutting quality to appear.

In the two patents, the through hole is formed in the position of the movable tong head, so that redundant chains need to pass through the movable tong head when the pipe is cut, the operation is complicated, and the cutting efficiency is reduced.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: in order to solve the defects of the prior art, the utility model provides a chain locking pliers for cutting pipes, which can not only conveniently and reliably clamp the pipes, but also make the chain locking pliers more convenient to use by arranging a chain groove on a movable pliers head, reduce unnecessary troubles of perforation and disassembly, and improve the installation efficiency; one corner through with the cutting member articulates on movable tong head, makes better and the tubular product laminating of cutter and chain, improves the quality of cutting, through the gyro wheel in the roller chain, improves the smoothness nature when rotatory at chain locking pliers, guarantees to cut convenient laborsaving more.

In order to achieve the above object, the present invention provides the following technical solutions:

a chain locking pliers for cutting pipe is composed of a chain and a pliers body consisting of big handle, movable head, small handle, tension spring, stay bar, regulating screw, and cutting part consisting of triangular clamping piece, roller-type sharp-edge cutter and fixing pin, and a roller chain consisting of roller, the roller chain is composed of rollers, chain pieces and chain pins, the chain pins extend out of two sides of the chain pieces, the rollers are mounted on the chain pins, the height of the rollers is larger than that of the chain pieces, a clamping portion is arranged at one end, far away from the adjusting bolt, of the large caliper handle, and a pin groove corresponding to the chain pins on the chain is formed in the clamping portion.

Preferably, the clamping part at the end part of the large forceps handle is Y-shaped, and two symmetrical and obliquely downward pin grooves are formed in the inner edges of two side walls at the upper end.

Preferably, the movable tong head comprises a steel plate in the shape of L, and the middle section of the vertical part of the steel plate in the shape of L bulges outwards to form a chain groove.

Preferably, the length of the chain pin is larger than the width between the pin grooves in the clamping part.

Preferably, the tail part of the big handle is provided with a nut for fixing the adjusting position of the adjusting screw.

Preferably, the rollers in the roller chain can be replaced by bearings.

Preferably, the roller chain can be replaced by a top roller chain or a double-speed chain.

Compared with the prior art, the chain locking pliers for cutting the pipes, disclosed by the utility model, have the advantages that the chain grooves are arranged on the movable pliers head, so that the chain locking pliers are more convenient to use, less in perforation and detachment, unnecessary troubles are saved, and the installation efficiency is improved; one corner through with the cutting member articulates on movable tong head, makes better and the tubular product laminating of cutter and chain, improves the quality of cutting, through the gyro wheel in the roller chain, improves the smoothness nature when rotatory at chain locking pliers, guarantees to cut convenient laborsaving more.

Drawings

FIG. 1 is a schematic view of the utility model;

FIG. 2 is a schematic view of the structure of FIG. 1 along the direction A;

FIG. 3 is a schematic view of the structure of FIG. 1 along the direction B;

1. a large clamp handle; 2. a small clamp handle; 3. a tension spring; 4. a stay bar; 5. releasing the handle; 6. an adjusting screw; 7. a movable binding clip; 8. chain pieces; 9. a roller; 10. a triangular clamping piece; 11. a roller sharp-edge cutter; 12. a chain pin; 13. a fixing pin; 14. a pipe; 15. a chain groove; 16. a pin slot.

Detailed Description

The technical solution of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the present invention.

As shown in fig. 1-3, the utility model discloses a chain locking pliers of 14 cutting of tubular product, including chain and pincers body, the pincers body is including big pincers handle 1, activity binding clip 7, little pincers handle 2, extension spring 3, vaulting pole 4, throw off handle 5 and adjusting screw 6, activity binding clip 7 and little pincers handle 2 and big pincers handle 1 articulate and form two rocker actuating mechanism, throw off handle 5 and vaulting pole 4 and articulate at 2 afterbody of little pincers handle, adjusting screw 6 installs at 1 afterbody of big pincers handle, 3 connection activity binding clip 7 and big pincers handle 1 of extension spring, its characterized in that: still including cutting member, cutting member articulates the tip at activity binding clip 7, cutting member comprises triangle clamping piece 10, gyro wheel sharp blade cutting knife 11 and fixed pin 13, one of them angle of triangle clamping piece 10 hinges the tip at activity binding clip 7, gyro wheel sharp blade cutting knife 11 passes through fixed pin 13 to be fixed on two other angles of triangle clamping piece 10, chain one end also articulates on triangle clamping piece 10 through fixed pin 13, the chain is roller chain, roller chain comprises roller 9, chain piece 8, chain round pin 12 stretches out chain piece 8 both sides, roller 9 is installed on chain round pin 12, and the height that roller 9 is greater than chain piece 8 guarantees that tubular product 14 and chain body contactless when using, is not in the contact of chain piece 8 promptly, only roller 9 and tubular product 14 contact, the one end that adjusting bolt was kept away from to big tong handle 1 is equipped with the portion of clamping, the clamping part is provided with a pin slot 16 corresponding to the chain pin 12 on the chain.

In this example, the clamping portion at the end of the large forceps handle 1 is Y-shaped, and two symmetrical and obliquely downward pin slots 16 are provided at the inner edges of the two side walls at the upper end.

In this example, the movable binding clip 7 comprises a steel plate in the shape of L, the middle section of the vertical part of the L steel plate bulges outwards to form a chain groove 15, the end part of the vertical part of the L steel plate is hinged with the tripod clamping piece, the bending position of the L steel plate is hinged with the small plier handle 2, the end part of the horizontal part of the L steel plate is hinged on the large plier handle 1, and one end of the tension spring 3 is hinged on the horizontal part of the L steel plate.

In this example, the length of the chain pin is greater than the width between the pin grooves 16 in the clamping portion, and the chain pin is clamped at the position of the pin groove 16 on the large caliper handle 1.

In this example, the rollers 9 in the roller chain can also be replaced by bearings.

In this example, the roller chain can be replaced by a top roller chain or a double-speed chain.

In this example, the adjusting screw 6 on the tail of the big clamp handle 1 can adjust the opening and closing size of the movable clamp head 7.

A pipe 14 is placed on a cutting piece, a chain is surrounded on the pipe 14, chain pins on the chain are clamped in pin grooves 16 on a large clamp handle 1, redundant chains are arranged out along the chain grooves 15 on a movable jaw, a clamp body is operated to enable a small clamp handle 2 to be close to the large clamp handle 1, chain rollers around the outside of the pipe 14 are enabled to be evenly pressed on the surface of the pipe 14, the pipe 14 is tightly held, a roller sharp-edge cutter 11 on the cutting piece is enabled to be tightly attached to the surface of the pipe 14, the large-force clamp of the chain is rotated, the roller sharp-edge cutter 11 leaves cutting marks on the pipe 14, the small clamp handle 2 is enabled to be close to the large clamp handle 1 and rotated gradually, the pipe 14 is cut off, and the position of the chain can be further adjusted during cutting, so that effective cutting of the pipe 14 is guaranteed.

The chain groove 15 is formed in the movable tong head 7, so that the chain locking tong is more convenient to use, unnecessary troubles of punching and disassembling are reduced, and the mounting efficiency is improved; one corner through with the cutting member articulates on movable pincers, makes better and the 14 laminating of tubular product of cutter and chain, improves the quality of cutting, through the gyro wheel in the roller chain, improves the smoothness nature when rotatory at chain locking pliers, guarantees to cut convenient laborsaving more.

The technical contents and features of the present invention have been disclosed as above, however, those skilled in the art may still make various substitutions and modifications based on the disclosure of the present invention without departing from the spirit of the present invention, and therefore, the scope of the present invention should not be limited to the disclosure of the embodiments, but should include various substitutions and modifications without departing from the present invention and be covered by the claims of the present patent application.

Claims

1. The utility model provides a chain locking pliers of tubular product cutting, includes chain and pincers body, the pincers body is including big pincers handle, activity binding clip, little pincers handle, extension spring, vaulting pole, throw off handle and adjusting screw, activity binding clip and little pincers handle and big pincers handle articulate and form two rocker actuating mechanism, throw off handle and vaulting pole and articulate at little pincers handle afterbody, adjusting screw installs at big pincers handle afterbody, the extension spring is connected activity binding clip and big pincers handle, its characterized in that: still including cutting the piece, cutting the piece and articulating the tip at the activity binding clip, cutting the piece and comprises triangle clamping piece, gyro wheel sharp blade cutting knife and fixed pin, one of them angle of triangle clamping piece articulates the tip at the activity binding clip, gyro wheel sharp blade cutting knife articulates on two other angles of triangle clamping piece through the fixed pin, chain one end also articulates on the triangle clamping piece through the fixed pin, the chain is roller chain, roller chain comprises roller, chain piece, chain round pin, the chain round pin stretches out chain piece both sides, the roller is installed on the chain round pin, and the height that highly is greater than the chain piece of roller, the one end that adjusting bolt was kept away from to big tong handle is equipped with the portion of clamping, be equipped with the keyway that corresponds with chain round pin on the chain in the portion of clamping.

2. The chain locking pliers for cutting pipes of claim 1, wherein: the clamping part at the end part of the large forceps handle is Y-shaped, and two symmetrical pin grooves which are inclined downwards are arranged at the inner edges of two side walls at the upper end.

3. The chain locking pliers for cutting pipes of claim 1 wherein the movable pliers head comprises a steel plate L with a middle section of the vertical part of L steel plate bulging outward to form a chain slot.

4. The chain locking pliers for cutting pipes of claim 1, wherein: the length of the chain pin is larger than the width between the pin grooves in the clamping part.

5. The chain locking pliers for cutting pipes of claim 1, wherein: and the tail part of the big plier handle is provided with a nut for fixing the adjusting position of the adjusting screw.

6. The chain locking pliers for cutting pipes of claim 1, wherein: the rollers in the roller chain can also be replaced by bearings.

7. The chain locking pliers for cutting pipes of claim 1, wherein: the roller chain can also be replaced by a top roller chain or a double-speed chain.