CN204997579U - A opening box spanner for narrow and small space - Google Patents

Abstract

The utility model relates to a wrench, comprising a main wrench (1), an auxiliary wrench (2) and a connecting shaft (3), belonging to the technical field of hardware tools. The main wrench (1) includes the main wrench head (11), the main sleeve (12) and the main wrench handle (13), which are clamped with the bolts or nuts to be disassembled for disassembly and assembly operations, and the operation of the auxiliary wrench (2) When used as a flex handle to increase the moment arm. The utility model can pass through the pipeline to assemble and disassemble the nuts on the pipeline; it can also be used for the disassembly and assembly of nuts or bolts in narrow spaces or deep depressions; The known technical problem that the open-end wrench is limited in movement in a narrow space. If the main wrench (1) is working, the auxiliary wrench (2) is used as a bending handle; if the auxiliary wrench (2) is working, the main wrench (1) is used as a bending handle; the scope of use of the utility model is increased, and the operation is convenient and efficient.

Description

An open socket wrench for narrow spaces

technical field

The utility model relates to a wrench, which belongs to the technical field of hardware tools.

Background technique

A wrench is a commonly used installation and removal tool. Turning fasteners such as bolts, screws, and nuts using the principle of leverage, but often limited in tight spaces. For example, when installing or disassembling kitchen faucets, bathroom faucets and toilet water fittings, when replacing the corresponding hoses, due to the narrow operating space, the operation of ordinary wrenches is limited and inconvenient to operate.

In order to screw the bolts or nuts with very narrow space or deep recesses, socket wrenches have appeared. A socket wrench generally consists of multiple sockets of different specifications and is equipped with various accessories such as handles and extension rods. The sleeve is generally a cylindrical structure with hexagonal or twelve-pointed holes, but the outer diameter and length are designed for the application, and there is no unified national regulation. At present, the specifications of the openings or sockets of the known wrenches have been serialized, expressed as the distance between opposite sides, and the unit is mm.

The existing socket wrench can avoid the limitation of narrow space when installing kitchen faucets, bathroom faucets and toilet water parts, and is indeed effective; but when replacing the hoses of kitchen faucets, bathroom faucets and toilet water parts, due to The socket of the socket wrench is closed and cannot pass through the connected hose, so it is useless. The opening of an ordinary wrench or live-end wrench can pass through, but it is inconvenient to operate due to the limitation of the narrow space.

In order to solve the problem that the socket wrench is closed and cannot pass through the pipeline, and the existing open-end wrench is limited in movement in a narrow space, the utility model proposes an open-end socket wrench for a narrow space.

Contents of the invention

The purpose of the utility model is to provide an open socket wrench used in a narrow space, which can pass through the pipeline, and can also be used for disassembly or installation in a narrow space or a deep depression.

An open socket wrench used in a narrow space includes a main wrench 1, an auxiliary wrench 2 and a connecting shaft 3, as shown in FIG. 1 . The handle end of the main wrench 1 has a groove, and the handle end of the auxiliary wrench 2 has a tenon, which is hinged by the connecting shaft 3 and can be rotated relative to each other. It can pass through the pipeline and is used for disassembly in narrow spaces or deep depressions. or install jobs.

The main wrench 1 includes a main wrench head 11, a main sleeve 12 and a main wrench handle 13, hinged with the auxiliary wrench 2 through the connecting shaft 3, connected and clamped with the bolt or nut to be disassembled, and carried out the disassembly operation. The auxiliary wrench 2 is used as a bending handle during operation to increase the arm of force. The arm of force refers to the distance between the point of force and the center of rotation; increasing the arm of force can increase the torque, save effort and reduce the difficulty of operation. The main wrench head 11 has an opening, which is connected and clamped with the bolt or nut to be disassembled for disassembly. The main sleeve 12 is a cylindrical structure, one end is rigidly connected with the main wrench head 11, an axial groove is opened at the corresponding circumferential position of the main wrench head 11, and the other end is rigidly connected with the main wrench handle 13, so that the main wrench 1 become a rigid whole. The width of the axial groove is not less than the distance across the opening of the main wrench head 11, so as to pass through the pipeline, so that the utility model can assemble and disassemble the nut on the pipeline. The main wrench handle 13 has a groove, through which the secondary wrench 2 is hinged, and has a through hole at the center of the two side walls of the groove, and is matched with the connecting shaft 3 through the through hole.

The auxiliary wrench 2 includes an auxiliary wrench head 21, an auxiliary sleeve 22 and an auxiliary wrench handle 23, which are connected and clamped with the bolts or nuts to be disassembled to perform disassembly operations, and are hinged with the main wrench 1 through the connecting shaft 3, and Relatively rotated, it is used as a bending handle when the main wrench 1 is working, so as to increase the moment arm. The secondary wrench head 21 has the same structure and function as the main wrench head 11 , but has different specifications, and can assemble and disassemble nuts or bolts of different specifications. The auxiliary sleeve 22 has the same structure and function as the main sleeve 12, and is rigidly connected with the auxiliary wrench head 21 and the auxiliary wrench handle 23, so that the auxiliary wrench 2 becomes a rigid whole. The auxiliary wrench handle 23 has a tenon, which is hinged with the main wrench 1 through the tenon, and has a through hole at the center of the side of the tenon, and is clearance-fitted with the connecting shaft 3 through the through hole.

The connecting shaft 3 is preferably a well-known cross-shaped countersunk bolt or flat-head pin shaft, which is connected to the main wrench 1 and the auxiliary wrench 2 respectively, so that the main wrench 1 and the auxiliary wrench 2 are hinged.

The beneficial effects of the utility model are: the utility model can pass through the pipeline to assemble and disassemble the nuts on the pipeline; it can also be used for the disassembly and assembly of nuts or bolts in narrow spaces or deep depressions; The hole is closed, and the pipeline cannot be passed through, and the nut on the pipeline cannot be assembled and disassembled. It is a known technical problem that the open-end wrench is limited in movement in a narrow space. The utility model includes a main wrench 1 and an auxiliary wrench 2 hinged to each other; if the main wrench 1 works, the auxiliary wrench 2 is used as a bending handle; if the auxiliary wrench 2 works, the main wrench 1 is used as a bending handle; the utility model is increased Wide range of use, convenient and efficient operation.

Description of drawings:

Fig. 1 is the overall structure schematic diagram of the present utility model.

Explanation of reference signs: main wrench 1, main wrench head 11, main sleeve 12, main wrench handle 13, auxiliary wrench 2, auxiliary wrench head 21, auxiliary sleeve 22, auxiliary wrench handle 23, connecting shaft 3.

detailed description:

The technical solutions of the present utility model are described in detail below in conjunction with the accompanying drawings and specific embodiments.

Fig. 1 is the overall structure schematic diagram of the present utility model. The utility model includes a main wrench 1, an auxiliary wrench 2 and a connecting shaft 3, as shown in Figure 1, preferably made of high carbon steel or alloy steel, and subjected to quenching treatment. The main wrench 1 includes a main wrench head 11 , a main sleeve 12 and a main wrench handle 13 , which are connected and clamped with bolts or nuts to be disassembled for assembly and disassembly operations. The main wrench head 11 is preferably formed by stamping high carbon steel or alloy steel plate, and then ground and polished. The main sleeve 12 is a cylindrical structure, preferably high carbon steel or alloy steel plate is bent and formed, and then ground and polished. The rigid connection between one end of the main sleeve 12 and the main wrench head 11 and the rigid connection between the other end and the main wrench handle 13 is preferably welded. The main wrench handle 13 has a groove, and has a through hole at the center of the two side walls of the groove, preferably a high carbon steel or alloy steel bar, which is machined through milling, drilling, grinding and polishing.

The auxiliary wrench 2 includes an auxiliary wrench head 21 , an auxiliary sleeve 22 and an auxiliary wrench handle 23 , and is hinged to the main wrench 1 through a connecting shaft 3 and rotates relatively. The auxiliary wrench head 21 has the same structure and function as the main wrench head 11, and the forming and processing techniques are the same. The structure and function of the secondary sleeve 22 and the main sleeve 12 are the same, and the forming and processing techniques are the same. The auxiliary wrench handle 23 has a tenon and a through hole at the center of the side of the tenon, preferably a high carbon steel or alloy steel bar, which is machined through milling, drilling, grinding and polishing.

The connecting shaft 3 is preferably a well-known cross-shaped countersunk bolt or flat-head pin shaft standard part, which is connected to the main wrench 1 and the auxiliary wrench 2 respectively, so that the main wrench 1 and the auxiliary wrench 2 are hinged.

Under the condition of satisfying the structure and performance requirements of the utility model, changing materials and processing techniques are all within the protection scope of the utility model.

Claims (3)

1. the open sleeve spanner for small space, comprise main spanner (1), secondary spanner (2) and connecting axle (3), it is characterized in that the pommel band of described main spanner (1) is fluted, the pommel of secondary spanner (2) is with tenon, hinged by connecting axle (3), can relatively rotate, can pipeline be passed, for dismounting or the installation exercise of narrow space or the very depths of caving in.

2. according to a kind of open sleeve spanner for small space according to claim 1, it is characterized in that described main spanner (1) comprises main driving end (11), master collet (12) and main spanner handle (13), be connected with the bolt or nut of wanting dismounting and clamp, carry out dismounting operation, crank handle is used as, to increase the arm of force when secondary spanner (2) operation;

Described main driving end (11), with opening, is connected with the bolt or nut wanting dismounting and clamps, carrying out dismounting operation;

Described master collet (12) is cylinder-like structure, and one end and main driving end (11) are rigidly connected, and opening axial groove with the corresponding circumferential position of main driving end (11), the other end and main spanner handle (13) are rigidly connected;

Described main spanner handle (13) is with fluted, by groove and secondary spanner (2) hinged, in the center of groove two side with through hole, and coordinated with connecting axle (3) by described through hole.

3. according to a kind of open sleeve spanner for small space according to claim 1, it is characterized in that described secondary spanner (2) comprises secondary driving end (21), secondary case cylinder (22) and secondary spanner handle (23), be connected with the bolt or nut of wanting dismounting and clamp, carry out dismounting operation, crank handle is used as, to increase the arm of force when main spanner (1) operation;

Described secondary driving end (21) is identical with the 26S Proteasome Structure and Function of main driving end (11), and specification is different, can install and remove nut or the bolt of different size;

Described secondary case cylinder (22) is identical with the 26S Proteasome Structure and Function of master collet (12), is rigidly connected with secondary driving end (21) and secondary spanner handle (23);

Described secondary spanner handle (23) with tenon, by tenon and main spanner (1) hinged, in the center of tenon side with through hole, and by described through hole and connecting axle (3) matched in clearance.