CN211053547U

CN211053547U - Telescopic spanner

Info

Publication number: CN211053547U
Application number: CN201921341828.8U
Authority: CN
Inventors: 王磊; 何山林
Original assignee: Fujian Fuchuan Yifan New Energy Equipment Manufacturing Co Ltd
Current assignee: Fujian Fuchuan Yifan New Energy Equipment Manufacturing Co Ltd
Priority date: 2019-08-19
Filing date: 2019-08-19
Publication date: 2020-07-21
Anticipated expiration: 2029-08-19

Abstract

The utility model relates to a telescopic spanner includes spanner handle and circular shape spanner head, spanner handle's bottom is equipped with interior concave cavity, but interior concave cavity upper and lower sliding device has the flexible end of falling type, spanner head's both ends all are equipped with the fixed axle about, flexible end bottom left and right sides symmetry is provided with the shaft hole that corresponds the fixed axle, spanner head passes through the fixed axle and the rotatable setting in flexible end bottom of shaft hole cooperation, be equipped with on the flexible end and prevent contracting mechanism, prevent contracting mechanism includes the ratchet of locating flexible end one side, spanner handle is equipped with the opening in the one side that corresponds the ratchet, just spanner handle articulates by the opening has a pawl, the one end and the inconsistent ratchet of pawl, be connected with the spring between the other end of pawl and the spanner handle, the rotatable two auxiliary handle that are provided with in spanner handle top, the utility model discloses simple structure not only, application scope is wide moreover, convenient to use.

Description

Telescopic spanner

Technical Field

The utility model relates to a machinery field of heavily being good at specifically indicates to have a telescopic spanner.

Background

The wrench is a common mounting and dismounting tool, and is a manual tool for screwing bolts, screws, nuts and other screw threads to tightly hold open or trepanning fasteners of the bolts or nuts by utilizing the lever principle. The wrench is typically made of structural steel of carbon or alloy material.

Most of existing wrenches are integrally arranged with a handle, and the wrench head and the handle cannot rotate relatively, so that the wrench is not suitable for being operated in narrow space. The application in narrow and small space is overcome to some spanners to adopt the form that spanner head tip and handle tip are articulated, but this kind of articulated mode can have the inconvenient scheduling problem of application of force when rotating.

The utility model discloses a telescopic spanner is to the problem design that foretell prior art exists the utility model discloses the purpose of research.

SUMMERY OF THE UTILITY MODEL

To the problem that above-mentioned prior art exists, the utility model provides a telescopic spanner can effectively solve the problem that above-mentioned prior art exists.

The technical scheme of the utility model is that:

a telescopic wrench comprises a wrench handle and a circular wrench head, wherein an inner concave cavity is formed in the bottom end of the wrench handle, an inverted -shaped telescopic end is arranged in the inner concave cavity in a vertically sliding mode, fixed shafts are arranged at the left end and the right end of the wrench head respectively, shaft holes corresponding to the fixed shafts are symmetrically formed in the left side and the right side of the bottom end of the telescopic end, the wrench head is rotatably arranged at the bottom end of the telescopic end through the matching of the fixed shafts and the shaft holes, a shrinkage prevention mechanism is arranged on the telescopic end and comprises ratchets arranged on one side of the telescopic end, an opening is formed in one side of the wrench handle corresponding to the ratchets, a pawl is hinged to the side of the opening of the wrench handle, one end of the pawl is abutted to the ratchets, a spring is connected between the other end of the pawl and the.

The spanner handle's interior concave cavity is equipped with the slide rail, flexible end top is equipped with the slider that corresponds the slide rail, flexible end passes through slider and slide rail cooperation can slide device from top to bottom in interior concave cavity.

The both sides of pawl all are equipped with the hinged end, the spanner handle all is equipped with the lug in the position that corresponds the hinged end, all be equipped with the end hole that corresponds the hinged end on the lug.

The utility model has the advantages that:

the utility model discloses when using, on the one hand can pull out flexible end to increase moment, and is more laborsaving, stretch out the back at flexible end, the pawl cooperation ratchet of shrink-proof mechanism can prevent that flexible end from returning and contract, when the spirit end is packed up to needs, only need press the one end of pawl make it leave the ratchet can, on the other hand, when dealing with narrow space, can rotate wrench end 90, make it be vertical state with wrench handle, rotate two auxiliary handle on the wrench handle 90 again, can easily twist off the nut through rotatory auxiliary handle, simultaneously, through the design of flexible end falling type, can avoid because of bolt length overlength, and lead to the condition that wrench end can't cup joint at the nut to take place, the utility model discloses simple structure not only, and application scope is wide, convenient to use.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural diagram of an inner concave cavity.

Fig. 3 is a schematic structural view of the anti-shrink mechanism.

Fig. 4 is a usage state diagram of the present invention.

Detailed Description

To facilitate understanding of those skilled in the art, the structure of the present invention will now be described in further detail with reference to the following examples:

referring to fig. 1-4, the telescopic wrench comprises a wrench handle 1 and a circular wrench head 2, wherein an inner concave cavity 3 is formed in the bottom end of the wrench handle 1, an inverted -shaped telescopic end 4 is arranged in the inner concave cavity 3 in a vertically sliding mode, fixed shafts 5 are arranged at the left end and the right end of the wrench head 2, shaft holes 6 corresponding to the fixed shafts 5 are symmetrically formed in the left side and the right side of the bottom end of the telescopic end 4, the wrench head 2 is rotatably arranged at the bottom end of the telescopic end 4 through the fixed shafts 5 and the shaft holes 6 in a matched mode, an anti-shrinkage mechanism is arranged on the telescopic end 4 and comprises ratchets 7 arranged on one side of the telescopic end 4, an opening 8 is formed in one side of the wrench handle 1 corresponding to the ratchets 7, a pawl 9 is hinged to the side of the wrench handle 1, one end of the pawl 9 is abutted to the ratchets 7, a spring 10 is connected between the other end of the pawl 9 and the wrench handle.

The inner concave cavity 3 of the wrench handle 1 is provided with a slide rail 12, the top of the telescopic end 4 is provided with a slide block 13 corresponding to the slide rail 12, and the telescopic end 4 is matched with the slide rail 12 through the slide block 13 and can slide up and down in the inner concave cavity 3.

Both sides of pawl 9 all are equipped with hinged end 14, wrench handle 1 all is equipped with lug 15 in the position that corresponds hinged end 14, all be equipped with the end hole (not sign) that corresponds hinged end 14 on the lug 15.

The utility model discloses when using, on the one hand can pull out flexible end 4, thereby increase moment, it is more laborsaving, stretch out the back at flexible end 4, prevent that the pawl 9 cooperation ratchet 7 of shrink-proof mechanism can prevent flexible end 4 from retracting, when needs pack up flexible end 4, only need press the one end of pawl 9 make it leave ratchet 7 can, on the other hand, when dealing with narrow space, can rotate 90 wrench head 2, make it be vertical state with wrench handle 1, again rotate 90 with two auxiliary handle 11 on wrench handle 1, can easily twist off the nut through rotatory auxiliary handle 11, and simultaneously, through the design of flexible end 4 falling type, can avoid because of bolt length overlength, and lead to wrench head 2 can't cup joint the condition emergence at the nut.

The above is only the preferred embodiment of the present invention, and all the equivalent changes and modifications made within the scope of the claims of the present invention should belong to the scope of the present invention.

Claims

1. A telescopic wrench comprises a wrench handle and a circular wrench head, and is characterized in that an inner concave cavity is formed in the bottom end of the wrench handle, an inverted -shaped telescopic end is arranged in the inner concave cavity in a vertically sliding mode, fixed shafts are arranged at the left end and the right end of the wrench head, shaft holes corresponding to the fixed shafts are symmetrically formed in the left side and the right side of the bottom end of the telescopic end, the wrench head is rotatably arranged at the bottom end of the telescopic end through the matching of the fixed shafts and the shaft holes, a shrinkage prevention mechanism is arranged on the telescopic end and comprises ratchets arranged on one side of the telescopic end, an opening is formed in one side of the wrench handle corresponding to the ratchets, a pawl is hinged to the side of the opening of the wrench handle, one end of the pawl is in contact with the ratchets, a spring is connected between the other end of the pawl and the.

2. The telescopic wrench as claimed in claim 1, wherein: the spanner handle's interior concave cavity is equipped with the slide rail, flexible end top is equipped with the slider that corresponds the slide rail, flexible end passes through slider and slide rail cooperation can slide device from top to bottom in interior concave cavity.

3. The telescopic wrench as claimed in claim 1, wherein: the both sides of pawl all are equipped with the hinged end, the spanner handle all is equipped with the lug in the position that corresponds the hinged end, all be equipped with the end hole that corresponds the hinged end on the lug.