CN220534067U

CN220534067U - Open ratchet spanner

Info

Publication number: CN220534067U
Application number: CN202322113863.7U
Authority: CN
Inventors: 孟令汇
Original assignee: Dalian Newstar Tool Manufacture Co ltd
Current assignee: Dalian Newstar Tool Manufacture Co ltd
Priority date: 2023-08-08
Filing date: 2023-08-08
Publication date: 2024-02-27
Anticipated expiration: 2033-08-08

Abstract

The utility model discloses an open ratchet wrench, which is characterized in that: the wrench comprises a wrench end, the tail end of the wrench end is rotationally connected with the adapter plate through a first rotating shaft, the other end of the adapter plate is rotationally connected with the handle connecting plate through a second rotating shaft, a cavity is formed in the connecting portion of the wrench end, a first spring sleeved on the first rotating shaft is arranged in the cavity, the two ends of the first spring are respectively propped against the wrench end and the adapter plate, a cavity is also formed in the connecting portion of the adapter plate, a second spring sleeved on the second rotating shaft is arranged in the cavity, the two ends of the second spring are respectively propped against the adapter plate and the handle connecting plate, a locating pin cavity is formed in the tail end of the handle connecting plate, a third spring is arranged in the locating pin cavity, and a locating pin movably connected in the locating pin cavity is arranged at the top end of the third spring.

Description

Open ratchet spanner

Technical Field

The utility model relates to the field of overhauling of automobiles, in particular to an open ratchet wrench.

Background

When the maintenance of the automobile is carried out, the hexagon bolt or nut is often required to be installed in an automobile oil pipe or some narrow spaces, and because of the operation space and the narrow spaces, the traditional operation mode has the problems of time and labor waste, large labor capacity, low working efficiency and the like, and the problem of insufficient tightening force is also often caused, meanwhile, the operation is carried out in the narrow spaces, the damage of the oil pipe or the scratching of peripheral parts can be caused.

At present, a straight barrel type wrench is available on the market, the whole wrench is cylindrical, an inner hexagonal hole is formed in the front end of the wrench, a handle perpendicular to the cylinder is arranged at the rear end of the wrench, the inner hexagonal hole is buckled on a pre-screwed bolt or nut, the wrench is driven by the handle to drive the bolt or nut to rotate, screwing (or unscrewing) operation can be achieved, the straight barrel type wrench does not occupy a large working space, the maintenance operation requirement of an automobile oil pipe can be met to a certain extent, but an object occupying place is not required to be arranged right above a target bolt or nut, otherwise, screwing operation cannot be achieved, and certain limitation still exists, and the requirement of a complex structure during automobile oil pipe maintenance cannot be met.

There is thus a need for a method or apparatus that solves the above-mentioned problems.

Disclosure of Invention

The utility model aims to solve the defects in the prior art, and provides the open ratchet wrench which has the advantages of simple structure, ingenious design and reasonable layout, and can improve the working efficiency and simplify the operation process on the premise of saving manpower.

The technical scheme of the utility model is as follows: an open ratchet wrench, characterized in that: the wrench comprises a wrench end 1, the tail end of the wrench end 1 is rotationally connected with an adapter plate 3 through a first rotating shaft 2, the other end of the adapter plate 3 is rotationally connected with a handle connecting plate 5 through a second rotating shaft 4, a cavity is formed in the connecting part of the wrench end 1, a first spring 6 sleeved on the first rotating shaft 2 is arranged in the cavity, two ends of the first spring 6 are respectively propped against the wrench end 1 and the adapter plate 3, a cavity is also formed in the connecting part of the adapter plate 3, a second spring 7 sleeved on the second rotating shaft 4 is arranged in the cavity, two ends of the second spring 7 are respectively propped against the adapter plate 3 and the handle connecting plate 5, a positioning pin cavity is formed in the tail end of the handle connecting plate 5, a third spring 8 is arranged in the positioning pin cavity, and a positioning pin 9 movably connected in the positioning pin cavity is arranged at the top end of the third spring 8.

Compared with the prior art, the utility model has the following advantages:

the open ratchet wrench in the structural form is simple in structure, ingenious in design and reasonable in layout, and aims at the problems of the conventional rigid and unadjustable wrench in the use process, a special structure is designed, the open ratchet wrench consists of three mutually hinged sections, the angle between adjacent structures can be changed according to actual needs, and meanwhile, the springs arranged in the adjacent structures can also keep the adjacent structures in the angle state. The special structure can enable the wrench to go deep into a narrow space to carry out screwing operation of bolts or nuts, greatly expands application scenes of the wrench, solves the problem of screwing operation in the narrow space for the fields of automobile maintenance and the like, and is simple in manufacturing process and low in manufacturing cost, so that the wrench has various advantages, is particularly suitable for popularization and application in the field, and has very broad market prospects.

Drawings

Fig. 1 is a front view of an embodiment of the present utility model.

Fig. 2 is a top view of an embodiment of the present utility model.

The wrench comprises a wrench end head 1, a first rotating shaft 2, an adapter plate 3, a second rotating shaft 4, a handle connecting plate 5, a first spring 6, a second spring 7, a third spring 8 and a positioning pin 9.

Detailed Description

The following description of the embodiments of the utility model refers to the accompanying drawings, in which: as shown in fig. 1 and 2, an open ratchet wrench, the wrench includes a wrench end 1, the end of the wrench end 1 is rotatably connected with an adapter plate 3 through a first rotating shaft 2, the other end of the adapter plate 3 is rotatably connected with a handle connecting plate 5 through a second rotating shaft 4, a cavity is formed in a connecting portion of the wrench end 1, a first spring 6 sleeved on the first rotating shaft 2 is arranged in the cavity, two ends of the first spring 6 are respectively propped against the wrench end 1 and the adapter plate 3, a cavity is also formed in a connecting portion of the adapter plate 3, a second spring 7 sleeved on the second rotating shaft 4 is arranged in the cavity, two ends of the second spring 7 are respectively propped against the adapter plate 3 and the handle connecting plate 5, a positioning pin cavity is formed in the end of the handle connecting plate 5, a third spring 8 is arranged in the positioning pin cavity, and a positioning pin 9 movably connected in the positioning pin cavity is arranged at the top end of the third spring 8.

The working process of the open ratchet wrench of the embodiment of the utility model is as follows: taking screwing or unscrewing a nut as an example, firstly, according to the specific position of the nut to be screwed, pulling the spanner end head 1 and the adapter plate 3, changing the included angle between the spanner end head 1 and the adapter plate, and if necessary, pulling the adapter plate 3 and the handle connecting plate 5, changing the included angle between the two, so that the spanner end head 1, the adapter plate 3 and the handle connecting plate 5 which are originally in a coplanar state are changed into a bending shape, and the specific bending angle is determined according to the position of the nut, so that the spanner end head can extend into the position of the nut;

after adjustment, under the action of the first spring 6 and the second spring 7, the spanner end head 1 and the adapter plate 3 and the handle connecting plate 5 are relatively fixed, and the included angle between the spanner end head 1 and the adapter plate 3 and the handle connecting plate 5 is not changed under the action of external force;

after the adjustment is finished, the handle is connected to the handle connecting plate 5, a counter bore matched with the tail end of the handle connecting plate 5 is formed in the front end of the handle, after the handle connecting plate 5 is successfully inserted, the locating pin 9 on the handle connecting plate is ejected out under the action of the third spring 8 and is inserted into the locating pin hole formed in the inner wall of the counter bore to realize the connection between the handle and the handle connecting plate 5 (namely the wrench), and then an operator can hold the handle to drive the wrench end 1 to rotate, so that screwing or unscrewing operation of a nut is realized;

after the operation is finished, the handle is held, the whole wrench is taken out from a narrow space, the locating pin 9 is pressed through the through hole formed in the side wall of the handle, the locating pin 9 is recovered into the counter bore, and the handle and the wrench can be separated.

Claims

1. An open ratchet wrench, characterized in that: the wrench comprises a wrench end (1), the tail end of the wrench end (1) is rotationally connected with an adapter plate (3) through a first rotating shaft (2), the other end of the adapter plate (3) is rotationally connected with a handle connecting plate (5) through a second rotating shaft (4), a cavity is formed in the connecting portion of the wrench end (1), a first spring (6) sleeved on the first rotating shaft (2) is arranged in the cavity, two ends of the first spring (6) are respectively propped against the wrench end (1) and the adapter plate (3), a cavity is formed in the connecting portion of the adapter plate (3), a second spring (7) sleeved on the second rotating shaft (4) is arranged in the cavity, two ends of the second spring (7) are respectively propped against the adapter plate (3) and the handle connecting plate (5), a locating pin cavity is formed in the tail end of the handle connecting plate (5), a third spring (8) is arranged in the locating pin cavity, and the top end of the third spring (8) is movably connected with a locating pin (9) in the locating pin cavity.