CN2608225Y

CN2608225Y - Single start notch wheel socket spanner

Info

Publication number: CN2608225Y
Application number: CN 03229033
Authority: CN
Inventors: 沈红民
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-02-25
Filing date: 2003-02-25
Publication date: 2004-03-31
Anticipated expiration: 2013-02-25

Abstract

A single-ended ratchet-wheel socket spanner consists of a spanner body, a ratchet socket installed at one end of the spanner body, a ratchet and a spring with an end fixed at the head of the spanner body. The single-ended ratchet-wheel socket spanner is characterized in that the ratchet rotates relative to the spanner body along the middle pivot shaft and both ends of the ratchet are exposed outside the spanner body. Two ratches that engages separately with the ratchet socket along opposite directions are provided on the ratchet, a projection is arranged on the spring opposite to the ratchet surface, and the other end of the spring contacts with the ratchet by a steel ball on the side of the projection. As the above plan is applied, when the rotating direction of nuts are changed, it is not necessary to take off the spanner. Provided that the ratchet end exposed outside the spanner body is toggled, the ratchet projection will press the spring by the steel ball, and the steel ball will cross the top of the projection and be positioned on the other side of the projection. In the mean time, the other ratch of the ratchet will engage with the ratchet socket, and the spanner can be used as usual. By this means, the inverse rotation of the spanner is realized, thereby the spanner is more convenient to be used and the working efficiency is improved in times.

Description

The single head box socket set

Technical field

The utility model relates to a kind of spanner that is used to rotate nut, especially refer to a kind of can rotate continuously nut single head ratchet carriage wrench.

Background technology

Traditional spanner that screws or unscrew nut, its head roughly are " U " type opening or are the inner polygon ring-type, and this wrench can only be rotated nut off and on, rotating needs to take off spanner, lays again, rotates again, it is very inconvenient to work together like this, and operating efficiency is also low.For this reason, people are in order to overcome above-mentioned defective, designed the ratchet spanner that can rotate nut continuously, as Chinese utility model patent number is 01246050 " ratchet spanner " a kind of spanner that comes to this, this ratchet spanner comprises pulls body, be installed in sour jujube cover and the ratchet of pulling body one termination portion, also be provided with a spring at the described body head of pulling, this spring one end is fixed on to be pulled on the body head, and the other end is fixed on the ratchet, under the effect of spring force, make ratchet fasten the sour jujube cover, when pulling body with hand, the rotation of sour jujube cover drives nut rotation in it, and backward rotation is when pulling body, because the compression of spring, ratchet is separated with the sour jujube cover, thereby make spanner can not drive nut rotation, action so back and forth, can rotate nut continuously, thereby improve operating efficiency.But adopt above-mentioned spanner when unscrewing nut, still need take off wrench, reverse side is operated after laying spanner again, thereby it is still inconvenient to work together; In addition, the hollow wall of this sour jujube cover only is a kind of cover tubular of specification, and is provided with the opening fork spanner on the other end of body pulling, and fork spanner also is used for screwing or unscrewing nut, therefore adopt such spanner, function singleness still can't satisfy the instructions for use of people to ratchet spanner.

Summary of the invention

Technical problem to be solved in the utility model is the defective that overcomes prior art, and a kind of easy to use, operating efficiency is higher single head box socket set is provided.

The utility model solves the problems of the technologies described above the technical scheme that is adopted: this single head box socket set comprises pulls body, be installed in the sour jujube cover of pulling body one termination portion, a ratchet and an end are fixed on the spring of pulling the body head, it is characterized in that: described ratchet around its middle part pivot with respect to pulling that body rotates and its two ends are exposed to and pull outside the body, described ratchet is provided with two ratchets that overlap the rightabout engagement respectively with sour jujube, be provided with a lug boss on relative ratchet face with described spring, the steel ball and the described ratchet of the side of the other end of described spring by being positioned at described lug boss offset.

The top of described lug boss is to be good on the center line that is positioned at pivot, and two ratchets are that the center is symmetrically distributed in its both sides with the center line.

It is tip-shape that the top of described lug boss can be.

The gear that described sour jujube cover is meshed with ratchet can be positioned at the middle part of sour jujube cover external diameter.

Described sour jujube cover inwall two ends can be respectively equipped with different standard cartridges size.

Described sour jujube cover periphery can be provided with and be positioned at a jump ring of pulling on the body.

The described body other end of pulling can be poined afterbody.

Compared with prior art, advantage of the present utility model is: because the ratchet that adopts is provided with two ratchets, and on the ratchet face of relative spring, be provided with a lug boss, thereby when needing to change the direction of rotation of nut, need not to take off spanner, as long as stir to be exposed to and pull external ratchet end, the lug boss of ratchet compresses spring by steel ball, and make steel ball cross the top of lug boss and be positioned on the opposite side of lug boss, another ratchet of ratchet is meshed with the sour jujube cover simultaneously, operates spanner routinely, just can realize the backward rotation of nut, thereby more convenient to use, operating efficiency also significantly improves; The other end of pulling body simultaneously is designed to poined afterbody, can make it make the usefulness of crow bar; And sour jujube cover inwall is designed to different standard cartridges size, make its applicability stronger, to satisfy the instructions for use of people to ratchet spanner.

Description of drawings

Fig. 1 looks schematic diagram (analysing and observe) for the utility model structure master;

Fig. 2 is the schematic side view (analysing and observe) of Fig. 1;

Fig. 3 is the pawl structures schematic diagram among Fig. 1;

Fig. 4 is the structural representation of sour jujube cover among Fig. 1.

The specific embodiment

Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.

As shown in Figures 1 to 4, the single head box socket set of present embodiment comprises to be pulled body 1, is installed in sour jujube cover 2, ratchet 4 and an end of pulling body 1 one termination portions 12 and is fixed on the spring 6 of pulling the body head, described ratchet 4 is fixed on by the pivot 5 that is positioned at its middle part and pulls on the body 1, and its two ends are exposed to pulls outside the body 1, makes it to rotate with respect to pulling body 1; Described sour jujube cover 2 gears that are meshed with ratchet 4 are positioned at the middle part that sour jujube is overlapped 2 external diameters, described ratchet 4 is provided with respectively two ratchets 41 with the gear rightabout engagement of sour jujube cover 2, with described spring 7 relative ratchet faces on be provided with a lug boss 42, the top of this lug boss 42 is positioned on the center line of pivot 5, two ratchets 41 are that the center is symmetrically distributed in its both sides with the center line, for the ease of the location of steel ball 6, the top of described lug boss 42 is 90 ° tip-shape; The steel ball 6 of the side of the other end of spring 7 by being positioned at described lug boss 42 offsets with described ratchet.

In order to prevent that sour jujube cover 2 from moving along its axis, overlap 2 peripheries sour jujube and establish a jump ring 3, this jump ring 3 is positioned at again pulls body 1 annular groove, and the outside elastic force by means of jump ring 3 blocks sour jujube cover 2 like this, and sour jujube cover 2 can't be moved with respect to pulling body 1.In the present embodiment, this sour jujube is overlapped the standard cartridges size that 2 inwall two ends are respectively equipped with two kinds of different sizes, and the other end of pulling body 1 is designed to poined afterbody 11, makes its function more, more convenient to use.

During use, pull body 1 by rotating counterclockwise as Fig. 1, steel ball 6 moves toward the top of lug bosses 42 because the elastic force effect of spring 7, by steel ball 6 make ratchet 4 wherein a ratchet 41 fasten sour jujube cover 2, the rotation of sour jujube cover 2 drives nut rotation that places in it; When clockwise direction was pulled body 1, steel ball 6 deviated from lug boss 42 tops and moves down, because the elastic force effect of spring 7, ratchet 4 rotates along pivot 5, this ratchet 41 and sour jujube cover 2 is separated, thereby can drive the nut rotation, pull so back and forth, can screw nut.When needs unscrew nut, be exposed to the ratchet end of pulling outside the body 1 as long as stir, the lug boss 42 of ratchet 4 is by steel ball 6 compression springs 7, and make steel ball 6 cross the top of lug boss 42 and be positioned on the opposite side of lug boss 42, another ratchet 41 of ratchet 4 is meshed with sour jujube cover 2 simultaneously, clockwise rotate like this and pull body 1,, can unscrew nut by above-mentioned principle.

Claims

1, a kind of single head box socket set, it comprises pulls body (1), be installed in the sour jujube cover (2) of pulling body (1) one termination portion (12), a ratchet (4) and an end are fixed on the spring (7) of pulling the body head, it is characterized in that: described ratchet (4) around its middle part pivot (5) with respect to pulling that body (1) rotates and its two ends are exposed to and pull outside the body (1), described ratchet (4) is provided with respectively two ratchets (41) with the engagement of sour jujube cover (2) rightabout, be provided with a lug boss (42) on relative ratchet face with described spring (7), the steel ball (6) of the side of the other end of described spring (7) by being positioned at described lug boss (42) offsets with described ratchet (4).

2, single head box socket set according to claim 1 is characterized in that the top of described lug boss (42) is positioned on the center line of pivot (5), and two ratchets (41) are that the center is symmetrically distributed in its both sides with the center line.

3, single head box socket set according to claim 2 is characterized in that the top of described lug boss (42) is tip-shape.

4, single head box socket set according to claim 3 is characterized in that gear that described sour jujube cover (2) is meshed with ratchet (4) is positioned at the middle part of sour jujube cover (2) external diameter.

5,, it is characterized in that described sour jujube cover (2) inwall two ends are respectively equipped with different standard cartridges size according to the arbitrary described single head box socket set of claim 1 to 4.

6,, it is characterized in that described sour jujube cover (2) periphery is provided with to be positioned at a jump ring (3) of pulling on the body (1) according to the arbitrary described single head box socket set of claim 1 to 4.

7,, it is characterized in that described body (1) other end of pulling is poined afterbody (11) according to the arbitrary described single head box socket set of claim 1 to 4.