CN201211648Y

CN201211648Y - Lubricating unidirectional ratcher combination wrench with low noise

Info

Publication number: CN201211648Y
Application number: CNU2008201131255U
Authority: CN
Inventors: 吴天国
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-07-02
Filing date: 2008-07-02
Publication date: 2009-03-25
Anticipated expiration: 2018-07-02

Abstract

The utility model relates to a one-way ratchet wheel combination wrench with low noise and lubrication, which belongs to the technical field of a manual tool. One end of a wrench handle is provided with an open-end wrench, and the other end is provided with a round hole for arranging a ratchet wheel; one side of the round hole is provided with a crescent hole in which a detent and a spring are arranged; one side of the inner cylindrical surface of the round hole for arranging the ratchet wheel of the wrench handle is provided with an annular groove for arranging a jump ring which is clamped in the groove of the ratchet wheel and the annular groove of the wrench handle; the ratchet of the detent and the ratchet of the ratchet wheel can be mutually meshed under the elasticity of the spring; and the middle part of the inner cylindrical surface of the round hole for arranging the ratchet wheel of the wrench handle is provided with an annular groove filled with lubrication. Because the annular groove is provided with the lubrication, the utility model can effectively lower the noise in work, reduce the environmental pollution, and enable the machine wearing capacity caused by friction to be greatly reduced and the service life of products to be enhanced, and can be popularized and applied to the products of the same type.

Description

The single direction ratchet combination wrenches that the low noise vocal cores is lubricated

Technical field:

The utility model relates to the ratchet spanner technical field, refers in particular to the lubricated single direction ratchet combination wrenches of a kind of low noise vocal cores.

Background technology:

In mechanical processing industry, ratchet spanner is very common hand-operated tools, it utilizes the one way engagement of ratchet and pawl teeth to realize dismounting and installation to securing member, referring to Fig. 1: there is a kind of technical characterictic of ratchet spanner to be in the prior art: mainly include handle body 1 and be located at ratchet 5 in the handle body 1, in the half-moon groove of handle body 1, be provided with can with the ratchet 3 of ratchet 5 tight engagement, be with stage clip 2 on the connector of ratchet 3, be provided with jump ring 4 in the jump ring groove 6 of ratchet 5, jump ring 4 is installed in the circular hole 9 of handle body 1 after clamping in the jump ring groove 6 of ratchet 5, this moment, the inboard of jump ring 4 was stuck in the jump ring groove 6 of ratchet 5, the outside of jump ring 4 is stuck in the jump ring groove 7 of handle body 1, its weak point is: because the interior circle of the ratchet 5 of above-mentioned spanner and ratchet 3 and ratchet 5 and handle body 1 belongs to dry friction when rotating mutually, the one, the noise when causing work is big, form environmental pollution, the 2nd, friction causes friction member to damage easily, reduces the service life of product.

Summary of the invention:

The purpose of this utility model provides that a kind of operating noise is low, long service life, can add the lubricated single direction ratchet combination wrenches of low noise vocal cores of lubricating grease.

The utility model is achieved in that the single direction ratchet combination wrenches that the low noise vocal cores is lubricated, include pinch bar, ratchet, ratchet, spring and jump ring, one end of pinch bar is provided with twists the open-end wrench that bolt or nut are used, the other end is provided with installs the circular hole that ratchet is used, side at the close pinch bar of circular hole offers the crescent hole, ratchet and the spring on the reference column of cover ratchet are installed in the crescent hole, one side of the inner cylinder face of the circular hole of using at the installation ratchet of pinch bar is provided with installs the annular groove that jump ring is used, jump ring is stuck in the annular groove of the draw-in groove of ratchet and pinch bar, the ratchet of ratchet can be meshing with each other with the ratchet of ratchet under the elastic force of spring, and the middle part of the inner cylinder face of the circular hole of using at the installation ratchet of pinch bar is provided with the annular groove that repack with grease is used.

In above-mentioned pinch bar is installed the annular groove at middle part of inner cylinder face of the circular hole that ratchet uses, in ratchet external tooth and the crescent hole, be filled with lubricating grease.

The outstanding compared to existing technology advantage of the utility model is:

1, the middle part on the face of cylinder of the circular hole of using at the installation ratchet of pinch bar of the present utility model is provided with annular groove, in annular groove, be filled with lubricating grease and be lubricated so that ratchet and ratchet and ratchet and pinch bar are installed the contact-making surface of interior circle of the circular hole of ratchet, the one, the noise in the time of can effectively reducing work, reduce environmental pollution, the 2nd, owing to no longer carry out dry friction between parts, the component wear amount that feasible friction causes significantly reduces, and improve the service life of product;

2, the utility model can be applicable on product of the same type.

Description of drawings:

Fig. 1 is the structure diagram of No. 200620157887.6 Chinese patents " a kind of ratchet one-way plum is driven spanner " in the background technology;

Fig. 2 is a front view of the present utility model;

Fig. 3 is one of partial sectional view of the present utility model;

Fig. 4 is two of a partial sectional view of the present utility model;

Fig. 5 is a decomposing schematic representation of the present utility model.

The specific embodiment:

With specific embodiment the utility model is further described below:

Referring to Fig. 2-5: the single direction ratchet combination wrenches that the low noise vocal cores is lubricated, include pinch bar 10, ratchet 40, ratchet 50, spring 60 and jump ring 70, one end of pinch bar 10 is provided with twists the open-end wrench 20 that bolt or nut are used, the other end of pinch bar 10 is provided with the circular hole 301 that ratchet 40 usefulness are installed, side at circular hole 301 close pinch bars 10 offers crescent hole 302, spring 60 is installed in the crescent hole 302 after being enclosed within on the reference column 501 of ratchet 50, side at the inner cylinder face of the circular hole 301 of installation ratchet 40 usefulness of pinch bar 10 is provided with the annular groove 303 that jump ring 70 usefulness are installed, after jump ring 70 is stuck in the draw-in groove 401 of ratchet 40, ratchet 40 together is installed in the ratchet installing hole 301 of pinch bar 10 1 ends with jump ring 70, the ratchet of assembling back ratchet 50 can be meshing with each other with the ratchet of ratchet 40 under the elastic force of spring 60, jump ring 70 is stuck in the annular groove 401 of ratchet 40 and pinch bar 10, middle part at the inner cylinder face of the circular hole 301 of installation ratchet 40 usefulness of pinch bar 10 is provided with the annular groove 304 that repack with grease is used, the annular groove at middle part of the inner cylinder face of the circular hole that ratchet uses is installed at described pinch bar, be filled with lubricating grease in ratchet external tooth and the crescent hole, like this, when using the utility model to carry out work, the contact-making surface of the interior circle of the circular hole of ratchet and ratchet and ratchet and pinch bar installation ratchet is owing to there is lubricating grease to be lubricated, the one, the noise in the time of can effectively reducing work, reduce environmental pollution, the 2nd, owing to no longer carry out dry friction between parts, the component wear amount that feasible friction causes significantly reduces, improve the service life of product, and the utility model can be applicable on product of the same type.

The foregoing description only is one of preferred embodiment of the present utility model; be not to limit protection domain of the present utility model with this; so: all equivalences of doing according to shape of the present utility model, structure, principle change, and all should be covered by within the protection domain of the present utility model.

Claims

1, the single direction ratchet combination wrenches that the low noise vocal cores is lubricated, include pinch bar, ratchet, ratchet, spring and jump ring, one end of pinch bar is provided with twists the open-end wrench that bolt or nut are used, the other end is provided with installs the circular hole that ratchet is used, side at the close pinch bar of circular hole offers the crescent hole, ratchet and the spring on the reference column of cover ratchet are installed in the crescent hole, one side of the inner cylinder face of the circular hole of using at the installation ratchet of pinch bar is provided with installs the annular groove that jump ring is used, jump ring is stuck in the annular groove of the draw-in groove of ratchet and pinch bar, the ratchet of ratchet can be meshing with each other with the ratchet of ratchet under the elastic force of spring, it is characterized in that the middle part of the inner cylinder face of the circular hole used at the installation ratchet of pinch bar is provided with the annular groove that repack with grease is used.

2, the lubricated single direction ratchet combination wrenches of low noise vocal cores according to claim 1 is characterized in that being filled with lubricating grease in described pinch bar is installed annular groove, ratchet external tooth and the crescent hole at middle part of inner cylinder face of the circular hole that ratchet uses.