CN1331638C

CN1331638C - Improved ratchet wrench joint structure

Info

Publication number: CN1331638C
Application number: CNB2004100019339A
Authority: CN
Inventors: 胡厚飞
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-01-16
Filing date: 2004-01-16
Publication date: 2007-08-15
Anticipated expiration: 2024-01-16
Also published as: CN1640626A

Abstract

The present invention relates to a joint structure of an improved ratchet wrench. Sleeve holes at both ends of a ratchet barrel of the present invention are different in size, two spiral pieces having different sizes can be wrenched, when a spiral piece having a third kind of size is wrenched, a sleeve barrel is only combined at the combining part of the ratchet barrel, a spiral piece having a third kind of size can be wrenched by a sleeve hole of the sleeve barrel, and an additional ratchet wrench is not carried or replaced. The burden of a user is lightened. The present invention is conveniently used and is practical, and the sleeve barrel is combined at one end of the ratchet barrel in a demountable way. The present invention has the advantages of simple structure, easy processing and shaping, assembling time saving, low manufacturing cost, low failure rate of products, and enhanced competitive power of products, and the present invention is a design having industrial use and improvement.

Description

The ratchet spanner combined structure of improvement

Technical field

The present invention relates to spanner, refer to a kind of ratchet spanner combined structure of improvement especially.

Background technology

Along with development of science and technology and progress, people to the requirement of things also from the old thinking of " can with all right ", suitable exquisiteness and requirement become, have the conception of continuous progress or innovation only, produce new form to improve the surcharge of product, and effectively reduce cost, could under the test of Market competition, survive.

Building worker's method now changes the reinforcing bar construction method into by traditional reinforced concrete, because the combination between reinforcing bar is to utilize spiral shell spares such as bolt, nut to come combination, so the builder must carry ratchet spanner 1 to the eminence construction.With reference to Fig. 1, though existing building with ratchet tube 2 two ends of ratchet spanner 1 can be respectively in conjunction with the spiral shell spare of two kinds of different sizes, but the spiral shell spare between reinforcing bar has three kinds of sizes such as 17mm, 19mm and 21mm at least because of the difference of binding site, so the ratchet spanner 1 that the builder must carry more than two is at least constructed to eminence, not only caused workman's burden, and the danger when having improved construction operation, not handy, practical.The disadvantages that this existing ratchet spanner is derived has in fact and is researched and developed the necessity that improves.

Therefore, the present invention's problem of wanting to get rid of or alleviating prior art at least and met with.

Summary of the invention

The purpose of the ratchet spanner combined structure of the present invention's improvement is to overcome the deficiencies in the prior art and defective, though the technical problem that the institute desire solves be existing building with sleeve two ends of ratchet spanner can be respectively in conjunction with the spiral shell spare of two kinds of different sizes, but the spiral shell spare between reinforcing bar has three kinds of sizes such as 17mm, 19mm and 21mm at least because of the difference of binding site, so the ratchet spanner that the builder must carry more than two is at least constructed to eminence, not only caused workman's burden, and the danger when having improved construction operation, not handy, practical.

For reaching above-mentioned purpose, the invention provides a kind of ratchet spanner combined structure of improvement, the cover hole dimension difference of its ratchet tube two ends, can pull the spiral shell spare of two kinds of different sizes,, only need sleeve is incorporated into the joint portion of ratchet tube if when desiring the spiral shell spare of the third size of switching, promptly can utilize the trepanning of sleeve to pull the spiral shell spare of the third size, need not to go again to carry or change an other ratchet spanner, alleviated user's burden, fairly good usefulness, practicality.And this sleeve is incorporated into an end of ratchet tube removably, structure is quite simple, shape and be easier to, not only saved built-up time, reduced and produced cost, more having reduced the fault rate of product, significantly improved competitiveness of product, in fact is one to have the design of industry applications and progressive.

Description of drawings

Fig. 1 is the stereogram of existing ratchet spanner;

Fig. 2 is a three-dimensional combination figure of the present invention;

Fig. 3 is a three-dimensional exploded view of the present invention;

Fig. 4 is a part sectional view of the present invention;

Fig. 5 is the vertical view of ratchet spanner of the present invention;

Fig. 6 is the upward view of ratchet spanner of the present invention;

Fig. 7 is that ratchet spanner of the present invention is in conjunction with sleeved upward view;

Fig. 8 is a part cutaway view of the present invention, represents that first trepanning is placed on spiral shell spare;

Fig. 9 is a part cutaway view of the present invention, represents that second trepanning is placed on spiral shell spare;

Figure 10 is a part cutaway view of the present invention, represents that the 3rd trepanning is placed on spiral shell spare;

Figure 11 is the three-dimensional exploded view of second embodiment of the invention;

Figure 12 is the three-dimensional exploded view of third embodiment of the invention;

Figure 13 is the three-dimensional exploded view of four embodiment of the invention.

Symbol description among the figure

1 ratchet spanner, 2 ratchet tubes, 10 ratchet spanneres

11 heads, 12 ratchet tubes, 121 first trepannings

122 second trepannings, 123 joint portions, 124 Ka Gou

125 concave arcs, 126 depressions, 13 bellies

14 ratchet drive mechanisms, 15 shanks, 151 ends

20 sleeves, 21 hole clippings, 211 grooves

The 212C type is buckled 213 convex arcs, 214 projectioies

22 the 3rd trepannings, 31 spiral shell spares, 32 spiral shell spares

33 spiral shell spares, 40 sleeves, 42 quadruplet holes

123c joint portion, 123b joint portion, 123a joint portion

21 ' hole clipping, 21 " hole clippings

The specific embodiment

Relevant the technology used in the present invention, means and effect thereof, lift now that a preferred embodiment and conjunction with figs. describe in detail as after, this only for the usefulness of explanation, is not subjected to the restriction of this kind structure in patent application.

With reference to Fig. 2 and Fig. 3, first embodiment according to the invention, it includes a ratchet spanner 10 and a sleeve 20, and this sleeve 20 is incorporated into the ratchet tube 12 of ratchet spanner 10 removably.

Be provided with a ratchet tube 12 in the head 11 of ratchet spanner 10 rotationally, be provided with a ratchet drive mechanism 14 in the belly 13 of this ratchet spanner 10, this ratchet drive mechanism 14 can make ratchet tube 12 have the function that turns fast, this ratchet drive mechanism 14 can be embodied as unidirectional stopper or two-way stopper, this is an existing structure, so repeat no more.The shank 15 of this ratchet spanner 10 is available for users to grip, and forms tapers in the end 151 of shank 15, so that tie up iron or be inserted in the carry-on instrument cover.

Fig. 4 shows that further first end of this ratchet tube 12 is provided with one first trepanning 121, and simultaneously with reference to Fig. 5, this first trepanning 121 implements to be of a size of 21mm in first embodiment.Second end of this ratchet tube 12 is provided with second trepanning 122 that is communicated in first trepanning 121, penetrates shape so that this ratchet tube 12 forms a hollow, and simultaneously with reference to Fig. 6, this second trepanning 122 implements to be of a size of 17mm in first embodiment.The outer rim of these ratchet tube 12 second ends is provided with a non-circular joint portion 123, and this joint portion 123 forms hexagon in first embodiment, and is provided with a card ditch 124 in place, end angle.

First end of sleeve 20 is provided with the hole clipping 21 corresponding to joint portion 123, this hole clipping 21 is embodied as hexagon in first embodiment, and be provided with a clamping device in hole clipping 21, this clamping device includes the C types that a groove 211 and of being located at inwall is located in the groove 211 and buckles 212.Second end of this sleeve 20 is provided with one and is communicated in the 3rd trepanning 22 of hole clipping 21, penetrates shape thereby make this sleeve 20 form a hollow, and simultaneously with reference to Fig. 7, this trepanning 22 implements to be of a size of 19mm in first embodiment.

With reference to Fig. 8, when the user desires to pull the spiral shell spare 31 of 21mm, first trepanning 121 of ratchet tube 12 first ends can be placed on spiral shell spare 31, can turn spiral shell spare 31 apace.With reference to Fig. 9, when the user desires to pull the spiral shell spare 32 of 17mm, second trepanning 122 of ratchet tube 12 second ends can be placed on spiral shell spare 32, can turn spiral shell spare 32 apace.

With reference to Figure 10, when the user desires to pull the spiral shell spare 33 of 19mm, the hole clipping 21 of sleeve 20 first ends can be placed on the joint portion 123 of ratchet tube 12 second ends, C type in this hole clipping 21 is buckled 212 and can be snapped in the card ditch 124 of joint portion 123, thereby make sleeve 20 can firmly be incorporated into ratchet tube 12, and can rotate synchronously with ratchet tube 12.The 3rd trepanning 22 with sleeve 20 second ends is placed on spiral shell spare 33 again, can turn spiral shell spare 33 apace.

Show second embodiment of the present invention with reference to Figure 11, second embodiment is identical with first embodiment, change except ratchet tube 12 second end joint portion 123a shapes, the outer rim of this joint portion 123a is provided with several concave arcs 125, and 213, the second effects that embodiment reached of convex arc of the hole clipping 21 of sleeve 20 second ends ' also be provided with corresponding to concave arc 125 are same as first embodiment.

Show the 3rd embodiment of the present invention with reference to Figure 12, the 3rd embodiment is identical with first embodiment, except joint portion 123b being changed first end of being located at ratchet tube 12, and alteration of form with joint portion 123b, the outer rim of this joint portion 123b is provided with several depressions 126, " 214, the three effects that embodiment reached of projection that also are provided with corresponding to depression 126 are same as first embodiment to and the hole clipping 21 of sleeve 20 first ends.

Show the 4th embodiment of the present invention with reference to Figure 13, the 4th embodiment is identical with first embodiment, except first end in ratchet tube 12 is provided with a joint portion 123c, this joint portion 123c can supply another sleeve 40 combinations, the inside of this sleeve 40 also is provided with 42, the four effects that embodiment reached in a quadruplet hole and is same as first embodiment.

Can summarize the present invention with regard to the above and have following advantage:

1. the ratchet spanner combined structure of the present invention improvement, the cover hole dimension difference of its ratchet tube two ends, can pull the spiral shell spare of two kinds of different sizes, if when desiring the spiral shell spare of the third size of switching, only need sleeve is incorporated into the joint portion of ratchet tube, promptly can utilize the trepanning of sleeve to pull the spiral shell spare of the third size, need not again, row carries or changes an other ratchet spanner, alleviated user's burden, fairly good usefulness, practicality.

2. the ratchet spanner combined structure of the present invention improvement, its sleeve is incorporated into an end of ratchet tube removably, structure is quite simple, shape and be easier to, not only save built-up time, reduced producing cost, more reduced the fault rate of product, significantly having improved competitiveness of product, in fact is one to have the design of industry applications.

Only the above, only be preferred embodiment of the present invention, when can not with qualification scope of the invention process, so the displacement of the change of numerical value or equivalent elements such as, or, all should still belong to the category that patent of the present invention contains according to equalization variation and modification that the scope of claims of the present invention is done.

Claims

1. the ratchet spanner combined structure of an improvement is characterized in that, comprising:

One ratchet spanner, its head are provided with a ratchet tube rotationally, and first end of this ratchet tube is provided with one first trepanning, and second end of this ratchet tube is provided with one second trepanning, and the second end outer rim of this ratchet tube is provided with a joint portion;

One sleeve, its first end is provided with the hole clipping corresponding to the joint portion, and gets the ratchet tube that is incorporated into ratchet spanner removably, and second end of this sleeve is provided with one the 3rd trepanning;

This, this ratchet spanner sleeve of can arranging in pairs or groups uses, and reaches the effect of pulling three kinds of different size spiral shell spares.

2. the ratchet spanner combined structure of improvement as claimed in claim 1, wherein, the first end outer rim of this ratchet tube is provided with a joint portion, and this joint portion can supply sleeve combination removably.

3. the ratchet spanner combined structure of improvement as claimed in claim 1 wherein, is provided with a unidirectional ratchet drive mechanism in the belly of this ratchet spanner, and this unidirectional ratchet drive mechanism can make the ratchet tube have the unidirectional function that turns fast.

4. the ratchet spanner combined structure of improvement as claimed in claim 1 wherein, is provided with a two-way ratchet drive mechanism in the belly of this ratchet spanner, and this two-way ratchet drive mechanism can make the ratchet tube have the two-way function that turns fast.

5. the ratchet spanner combined structure of improvement as claimed in claim 1, wherein, the shank end of this ratchet spanner forms taper.

6. the ratchet spanner combined structure of improvement as claimed in claim 1, wherein, this first trepanning is communicated in second trepanning.

7. the ratchet spanner combined structure of improvement as claimed in claim 1, wherein, the joint portion of this ratchet tube second end forms non-circular.

8. the ratchet spanner combined structure of improvement as claimed in claim 1, wherein, the hole clipping of this sleeve forms non-circular.

9. the ratchet spanner combined structure of improvement as claimed in claim 1 wherein, is provided with a clamping device, and firmly is incorporated into the ratchet tube in the hole clipping of this sleeve.

10. the ratchet spanner combined structure of improvement as claimed in claim 9, wherein, this clamping device includes the C type that a groove and of being located at the hole clipping inwall is located in the groove and buckles, and this C type is buckled and can be snapped in the Ka Gou that is located at the joint portion outer rim.

11. the ratchet spanner combined structure of improvement as claimed in claim 1, wherein, the hole clipping of this sleeve is communicated in the 3rd trepanning.

12. the ratchet spanner combined structure of improvement as claimed in claim 1, wherein, this first trepanning is greater than second trepanning.

13. the ratchet spanner combined structure of improvement as claimed in claim 1, wherein, this second trepanning is greater than first trepanning.

14. the ratchet spanner combined structure of improvement as claimed in claim 1, wherein, the outer rim of this ratchet tube joint portion is provided with several depressions, and the hole clipping of sleeve first end also is provided with the projection corresponding to depression.