CN203210276U

CN203210276U - Spanner

Info

Publication number: CN203210276U
Application number: CN 201320192757
Authority: CN
Inventors: 胡旭辉
Original assignee: NINGBO SUNTHAI BEARING CO Ltd
Current assignee: NINGBO SUNTHAI BEARING CO Ltd
Priority date: 2013-04-16
Filing date: 2013-04-16
Publication date: 2013-09-25
Anticipated expiration: 2023-04-16

Abstract

A spanner comprises a spanner body (1) with a spanner head (11) and a handle (2). The spanner is characterized in that the spanner body (1) is connected with the handle (2) through a one-way rotating bearing (3) in a one-way rotatable mode, and a spanner head hole (21) used for screwing down a nut or a screw is formed in the handle (2). Compared with the prior art, the spanner has the advantages that the handle is connected with the spanner body through the one-way rotating bearing in the one-way rotatable mode, therefore, labor is saved in the operation process, the rotating angle can be increased through one-way rotation of one end of the handle, a user does not need to frequently pick up the spanner to adjust the rotating angle, strip-shaped grooves are formed in the spanner body and the handle so that materials are greatly saved, and meanwhile the whole weight is reduced. The spanner not only is simple in structure and convenient to use and saves labor, but also is low in production cost.

Description

A kind of spanner

Technical field

The utility model relates to a kind of instrument, specifically is a kind of spanner of the turn of the screw nut.

Background technology

Wrench is to utilize lever principle that the solid workpiece of spiral shell is moved, and reaches the effect that tightens or unscrew.Present known monkey wrench is made up of handle, spanner, have adaptable advantage, go for the nut of various different sizes, but need constantly to regulate the size of spanner when being to use, and some local nut that uses is common specification, at this moment uses monkey wrench just little convenient.

The existing patent No. is the Chinese invention patent " a kind of spanner " of CN200710168834.3, formed by handle and spanner, have 2～3 hexagonal holes that mate with regular size nut size on the handle, when running into the regular size nut, can use corresponding hexagonal hole, and need constantly to regulate the size of spanner at every turn need not use the time.This spanner uses easily, but equally with existing spanner also there is certain weak point, the rotation of spanner all is that certain angular range restriction is arranged when operating, unscrew if also nut not being tightened after rotating certain angle lives, at this moment just spanner need be taken from nut, carry out turn behind the adjusting angle again, this just makes that operation is cumbersome, therefore can not accomplish without any letup, need improve existing spanner, to reach more laborsaving, the purpose easily of operation.

Summary of the invention

Technical problem to be solved in the utility model is to provide a kind of labour-saving simple in structure, easy to use spanner at the above-mentioned state of the art.

The utility model solves the problems of the technologies described above the technical scheme that adopts: this spanner, comprise the wrench body, the handle that have spanner, it is characterized in that: but described wrench body is to be connected by one-directional rotation bearing one-directional rotation ground with handle, and described handle is provided with the spanner hole for tightening nuts or screw.

As improvement, afterbody one side of described wrench body and handle is also plastic a mutually involutory step surface, the circular groove that the center of step surface axially is respectively equipped with corresponding kingpin hole and can supplies the one-directional rotation bearing to set, the step surface of described wrench body and handle afterbody is folded in the one-directional rotation bearing wherein up and down, and by pivot pin wrench body, one-directional rotation bearing and handle is connected in turn.

As improvement, the tail end face of described wrench body and handle is respectively arc surface, and the step vertical plane of described step surface is respectively arc surface, and described arc surface is suitable with corresponding tail end face respectively.

As improvement, the middle part of described wrench body and handle also can be respectively arranged be used to the mounting hole of saving material and alleviating spanner weight.

As improvement, the front portion of described handle can be provided with the spanner hole of energy fastening nut.

Improve, described spanner hole may be selected to be hexagonal hole or quadrilateral hole again.

Compared with prior art, advantage of the present utility model is: but handle is connected by one-directional rotation bearing one-directional rotation ground with wrench body, just more laborsaving when operating like this, can be by the one-directional rotation of an end, make the angle of rotation increase, do not need often to pick up the angle that spanner is regulated rotation during use; And offer strip groove at wrench body and handle, make material greatly save, also alleviated whole weight simultaneously.The utility model is not only simple in structure, easy to use laborsaving, and production cost is also low.

Description of drawings

Fig. 1 is structural representation of the present utility model;

Fig. 2 is along the cutaway view of A-A line among Fig. 1;

Fig. 3 is Fig. 1 structural representation under difference use state;

Fig. 4 is the structural representation of Fig. 1 under another state;

Fig. 5 is the exploded view of Fig. 1.

The specific embodiment

Describe in further detail below in conjunction with the utility model of accompanying drawing embodiment.

Extremely shown in Figure 5 as Fig. 1, a kind of spanner, comprise the wrench body 1 and the handle 2 that have spanner 11, but described wrench body 1 and handle 2 are to be connected by an one-directional rotation bearing 3 one-directional rotation ground, are shaped as hexagonal spanner hole 21 with regular size nut size is mated on the described handle 2; Afterbody one side of described wrench body 1 and handle 2 forms involutory step surface 13 mutually, the tail end face of described wrench body 1 and handle 2 is arc surface, the step vertical plane 10 of described step surface 13 is arc surface, and match with the tail end face of wrench body 1 and handle 2 respectively, can rotate at a certain angle after making wrench body 1 and handle 2 involutory like this; The circular groove 14 that the center of step surface 13 offers corresponding kingpin hole 15 respectively and can supply one-directional rotation bearing 3 to set, but the involutory back of the afterbody of described wrench body 1 and handle 2 links together by a bearing pin 4 with passing kingpin hole 15, one-directional rotation bearing 3 one-directional rotation, when the 21 pairs of nuts in the spanner hole of spanner 11 or handle 2 clamp turn, can be by the one-directional rotation of handle 2 or wrench body 1, realize the adjusting of rotation angle range, do not need often spanner to be mentioned the angle of regulating rotation, use more laborsaving; 2 middle parts of described wrench body 1 and handle offer the mounting hole 5 that communicates up and down respectively, so not only save material, but also have alleviated weight, and profile is also more attractive in appearance.

Claims

1. spanner, comprise the wrench body (1), the handle (2) that have spanner (11), it is characterized in that: described wrench body (1) is by an one-directional rotation bearing (3) with handle (2) but one-directional rotation ground is connected, and described handle (2) is provided with the spanner hole (21) for tightening nuts or screw.

2. spanner according to claim 1, it is characterized in that: afterbody one side of described wrench body (1) and handle (2) forms involutory step surface (13) mutually, the circular groove (14) that the center of step surface (13) axially is respectively equipped with corresponding kingpin hole (15) and can supplies one-directional rotation bearing (3) to set, described wrench body (1) is folded in one-directional rotation bearing (3) wherein up and down with the step surface (13) of handle (2) afterbody, and by pivot pin (4) wrench body (1), one-directional rotation bearing (3) and handle (2) is connected in turn.

3. spanner according to claim 2, it is characterized in that: the tail end face of described wrench body (1) and handle (2) is respectively arc surface, the step vertical plane (10) of described step surface (13) is respectively arc surface, and described arc surface is suitable with corresponding tail end face respectively.

4. according to claim 1 or 2 or 3 described spanners, it is characterized in that: the middle part of described wrench body (1) and handle (2) is respectively arranged be used to the mounting hole (5) of saving material and alleviating spanner weight.

5. according to claim 1 or 2 or 3 described spanners, it is characterized in that: the front portion of described handle (2) is provided with the spanner hole (21) of energy fastening nut.

6. spanner according to claim 5 is characterized in that: described spanner hole (21) is hexagonal hole or quadrilateral hole.