CN201799966U

CN201799966U - Ideal ratchet wrench

Info

Publication number: CN201799966U
Application number: CN2010202301424U
Authority: CN
Inventors: 黄咸龙
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-06-14
Filing date: 2010-06-14
Publication date: 2011-04-20
Anticipated expiration: 2020-06-14

Abstract

The utility model relates to the technical field of wrenches, in particular to an ideal ratchet wrench capable of adjusting wrenching size automatically. Compared with the prior art, the wrench comprises an upper protecting cover and a lower protecting cover; a gear ring, clamp blocks and stop blocks are arranged between the upper protecting cover and the lower protecting cover; each clamp block is arranged at the joint of two stop blocks and matched with and supported by the two stop blocks; the clamp blocks are matched with the stop blocks to form a circular arc-shaped clamping structure; the gear ring is pressed on one side of the clamp blocks and the stop blocks; an adjusting ring is engaged on the clamp blocks; and the adjusting ring can be rotated to adjust the diameter of the circular arc of the circular arc-shaped clamping structure, so as to form a clamping wrench with adjustable diameter. Due to the arrangement of the clamping structure with adjustable size, the wrench is suitable for bolts or nuts in different specifications and has strong flexibility; and simultaneously, the clamping structure is enclosed, so as to increase the stress area, overcome the defects of teeth slippage and teeth abrasion, and improve the reliability and security. Therefore, the wrench is an omnipotent wrench.

Description

Ratchet spanner as one wishes

Technical field

The present invention relates to the spanner technical field, particularly a kind ofly can regulate the ratchet spanner as one wishes of pulling size automatically.

Background technology

Spanner is to produce, the instrument that often uses in the middle of the life, spanner of the prior art generally has fork spanner, double offset ring spanner, adjustable wrench, box spanner, kinds such as inner hexagon spanner, these spanners respectively have advantage and weak point, as double offset ring spanner, box spanner and inner hexagon spanner etc. all are the spanners of fixed dimension, all be to make according to state's dimensioning of bolt or nut, because the spanner of a little kinds has closure and the characteristics such as contact area is many of exerting oneself, therefore generally can not produce slip teeth, phenomenons such as roll flute, has the reliability height, advantages such as security is big, but its shortcoming just has nonadjustable size, therefore a spanner can only use on the bolt or nut of a specification, exists to lack flexibility, shortcomings such as use is restricted.Other has some different types of spanners, as adjustable wrench is to have to regulate the spanner of pulling size, therefore can be suitable on the bolt or nut of various different sizes, have advantages such as flexibility is strong, but have open slot because of it, therefore in use, little with the effect contact area of bolt or nut, if overexertion is easy to cause phenomenons such as slip teeth, roll flute, bolt or nut are destroyed, so everybody wish to have a kind of all-round spanner of the advantage that can have in conjunction with this two class.

Summary of the invention

For solving existing defective of prior art spanner and problem, provide a kind of and can regulate the spanner as one wishes of pulling size automatically.

The technical scheme that the present invention is adopted for its technical problem of solution is: ratchet spanner as one wishes of the present invention comprises a handgrip protecting cover, hand-holding protective cover comprises protecting cover and following protecting cover on one, between last protecting cover and following protecting cover, be provided with gear ring, fixture block and block, fixture block is arranged on the junction of two blocks, and match with block and support, fixture block more than at least three cooperates circular arc clamping structure of formation with block, gear ring is pressed in one side of fixture block and block, on fixture block, also mesh an adjusting ring, rotate adjusting ring and can regulate the arc diameter size of circular arc clamping structure, form the clamping chucking spanner that to regulate diameter, the one side of gear ring is provided with the ladder tooth, another side and block are fixedly connected together, last protecting cover is provided with adjustment hole, the adjusting cap is housed on the adjustment hole, regulate on the cap and have the piece of pulling, regulate cap and connect a spring, the spring other end is a fixture block, fixture block is provided with the inclined-plane and faces directly, by pull piece can change fixture block the inclined-plane towards the position, fixture block matches with the ladder tooth of gear ring, when the inclined-plane of fixture block is in the positive direction of motion of the ladder tooth of gear ring, fixture block is not to the fixing snap action of gear ring, when facing directly of fixture block is in the positive direction of motion of the ladder tooth of gear ring, fixture block and gear ring keep relative fixed, fixing and the sliding relation of fixture block and gear ring is regulated by pulling the piece of regulating on the cap of pulling, fixture block is provided with cage plate and clamping plate, the outside of cage plate is provided with anti-slop serrations, the inboard of clamping plate is provided with engaging tooth, engaging tooth, the two sides of described adjusting ring is a helical tooth, and the outer ring diametric plane of adjusting ring has anti-skidding line, and the helical tooth on adjusting ring two sides is meshed with the engaging tooth of the clamping plate of fixture block.

The invention has the beneficial effects as follows: compared with prior art, ratchet spanner as one wishes of the present invention is owing to be provided with the clamping chucking structure of adjustable dimension, therefore can be suitable for the bolt or the nut of various different sizes, has very strong flexibility, clamping chucking structure is enclosed simultaneously, has increased lifting surface area, overcomes shortcomings such as slip teeth, roll flute, having improved reliability and security, therefore is a kind of all-round spanner.

Description of drawings

Below in conjunction with the drawings and specific embodiments ratchet spanner as one wishes of the present invention is described further.

Fig. 1 is the perspective view of ratchet spanner as one wishes of the present invention;

Fig. 2 is the gear ring, fixture block of Fig. 1 and the block structural representation when cooperating;

Fig. 3 is the fixture block of Fig. 1 and the block structural representation when cooperating;

Fig. 4 is the last protecting cover of Fig. 1 and gear ring and the structural representation when regulating cap and cooperating;

Fig. 5 is the perspective view of adjusting ring of the present invention;

Fig. 6 is the perspective view of fixture block of the present invention;

Fig. 7 is the perspective view that adjusting cap of the present invention, spring and fixture block cooperate;

Fig. 8 is the section cross section structure schematic diagram of ratchet spanner as one wishes of the present invention.

The specific embodiment

To shown in Figure 8, ratchet spanner as one wishes of the present invention comprises critical pieces such as hand-holding protective cover 10, adjusting ring 20, gear ring 30, fixture block 40, block 50 as Fig. 1.Hand-holding protective cover 10 comprises protecting cover 11 and following protecting cover 12 on one, be connected and fixed by securing member between last protecting cover 11 and the following protecting cover 12, on last protecting cover 11, adjustment hole 13 is housed, be equipped with on the adjustment hole 13 and regulate cap 70, have the piece of pulling 71 on the adjusting cap 70, regulate cap 70 and connect a spring 80, spring 80 other ends are fixture block 90, fixture block 90 is provided with inclined-plane 91 and faces 92 directly, by pull 91 on inclined-plane that piece 71 can change fixture block 90 towards the position.

To shown in Figure 8, the two sides of adjusting ring 20 is a helical tooth 21 as Fig. 1, and the outer ring diametric plane of adjusting ring 20 has anti-skidding line 22.The one side of gear ring 30 is provided with ladder tooth 31, another side and block 50 are fixedly connected together, ladder tooth 31 on the gear ring 30 matches with fixture block 90, when the inclined-plane 91 of fixture block 90 injects the positive direction of motion of ladder tooth 31, fixture block 90 is not to the fixing snap action of gear ring 30, face 92 directly when being in the ladder tooth 31 positive directions of motion of gear ring 30 when fixture block 90, fixture block 90 keeps relative fixed with gear ring 30, and pull regulate on the cap 70 pull that piece 71 can regulate fixture block 90 face 92 and the moving surface relation of inclined-plane 91 and ladder tooth 31 directly, thereby regulate the fixing and sliding relation of fixture block 90 and gear ring 30.

Extremely shown in Figure 8 as Fig. 1, fixture block 40 is provided with cage plate 41 and clamping plate 42, the outside of cage plate 41 is provided with anti-slop serrations, the inboard of clamping plate 42 is provided with engaging tooth 44, adjusting ring 20 is clipped in the clamping plate 42, the helical tooth 21 on adjusting ring 20 two sides is meshed with the engaging tooth 44 of the clamping plate 42 of fixture block 40, and the arc diameter of three fixture block 40 formation can dwindle along adjusting ring 20 slips or increase.Block 50 matches with fixture block 40, fixture block 40 is arranged on the junction of two blocks 50, and by block 50 supports, three fixture blocks 40 cooperate circular arc clamping structure of formation with block 50, and the diameter of circular arc clamping structure dwindles along adjusting ring 20 slips along with three fixture blocks 40 or increases.

Extremely shown in Figure 8 as Fig. 1, in actual use, pull to regulate and pull piece 71 on the cap 70, make the positive direction of motion of the inclined-plane 91 reeve ladder teeth 31 of fixture block 90, fixture block 90 is not to the fixing snap action of gear ring 30, rotation adjusting ring 20, allow and produce motion mutually between adjusting ring 20 and the fixture block 40, fixture block 40 is along the rotation of adjusting ring 20 and counter motion, the direct size of adjusting circular arc clamping diameter of movement of motion in the time of three fixture blocks 40, when the diameter of circular arc clamping structure meets the specification of bolt or nut, pull again to regulate and pull piece 71 on the cap 70, make the 92 ladder tooth 31 positive directions of motion that are in gear ring 30 of facing directly of fixture block 90, fixture block 90 keeps relative fixed with gear ring 30, gear ring 30 keeps relative fixed at this moment, and block 50 also keeps fixing with gear ring 30, also stopped slip between same fixture block 40 and the block 50, this moment, the circular arc clamping structure of three fixture blocks, 40 formation was done the time spent to bolt or nut, three fixture blocks 40 will be maintained fixed the position, thereby can carry out pine to bolt or nut.

Compared with prior art, ratchet spanner as one wishes of the present invention is owing to be provided with the clamping chucking structure of adjustable dimension, therefore can be suitable for the bolt or the nut of various different sizes, and can use as impact wrench behind cage plate 41 lengthenings of fixture block 40, has very strong flexibility, clamping chucking structure is enclosed simultaneously, increased and bolt or nut between lifting surface area, solved slip teeth, shortcomings such as roll flute, reliability and security have been improved, both can serve as monkey wrench and use, can serve as double offset ring spanner again, the spanner of type such as box spanner and inner hexagon spanner uses, and therefore is a kind of all-round spanner.

, but should be understood that under the situation that does not break away from relevant protection domain defined by the claims that those skilled in the art can make change and/or revise according to embodiments of the invention describing the present invention property and nonrestrictive description.

Claims

1. ratchet spanner as one wishes, comprise a handgrip protecting cover, it is characterized in that, hand-holding protective cover comprises protecting cover and following protecting cover on one, between last protecting cover and following protecting cover, be provided with gear ring, fixture block and block, fixture block is arranged on the junction of two blocks, and match with block and support, fixture block more than at least three cooperates circular arc clamping structure of formation with block, gear ring is pressed in one side of fixture block and block, on fixture block, also mesh an adjusting ring, rotate the arc diameter size that adjusting ring can be regulated circular arc clamping structure, form the clamping chucking spanner that to regulate diameter.

2. ratchet spanner according to claim 1 is characterized in that the one side of described gear ring is provided with the ladder tooth, and another side and block are fixedly connected together.

3. ratchet spanner according to claim 1, it is characterized in that, the described protecting cover of going up is provided with adjustment hole, the adjusting cap is housed on the adjustment hole, have the piece of pulling on the adjusting cap, regulate cap and connect a spring, the spring other end is a fixture block, fixture block is provided with inclined-plane and facing directly, by pull piece can change fixture block the inclined-plane towards the position.

4. according to claim 1,2 or 3 described ratchet spanneres, it is characterized in that, described fixture block matches with the ladder tooth of gear ring, when the inclined-plane of fixture block is in the positive direction of motion of the ladder tooth of gear ring, fixture block is not to the fixing snap action of gear ring, when facing directly of fixture block was in the positive direction of motion of the ladder tooth of gear ring, fixture block kept relative fixed with gear ring, and the fixing and sliding relation of fixture block and gear ring is regulated by the piece of pulling on the adjusting cap of pulling.

5. ratchet spanner according to claim 1, it is characterized in that, described fixture block is provided with cage plate and clamping plate, the outside of cage plate is provided with anti-slop serrations, the inboard of clamping plate is provided with engaging tooth, engaging tooth, and the two sides of described adjusting ring is a helical tooth, the outer ring diametric plane of adjusting ring has anti-skidding line, and the helical tooth on adjusting ring two sides is meshed with the engaging tooth of the clamping plate of fixture block.