CN100446932C

CN100446932C - Open-end wrench

Info

Publication number: CN100446932C
Application number: CNB2005101250787A
Authority: CN
Inventors: 王跃霖
Original assignee: LONGYI ELECTRONIC BUISINESS CO Ltd
Current assignee: LONGYI ELECTRONIC BUISINESS CO Ltd
Priority date: 2005-11-17
Filing date: 2005-11-17
Publication date: 2008-12-31
Anticipated expiration: 2025-11-17
Also published as: CN1966211A

Abstract

The invention relates to an open spanner which comprises one fixing block and one movable block, wherein said fixing block and one end of movable block are distantly arranged to form one open part; the fixing block extends one combine part with inside handle; one end of handle is inserted into the combine part, to slide; the part of fixing block near the open part has one sliding groove; the movable block has one sliding block inserted in sliding groove to slide; and one flexible element is in sliding groove and between sliding blocks, to draw back the movable block; the sliding block is meshed to handle. The invention can return without detaching the combiner when the combiner can not be rotated.

Description

Open-end wrench

[technical field]

The invention relates to a kind of hand-held tool, particularly about a kind of can continuous counter-rotational open-end wrench.

[background technology]

Spanner is a kind ofly to have the binding member of screw thread (as bolt in order to rotation, nut etc.) hand-held tool, it comprises the die nut that can rotate hexagon socket head cap screw at least, so as to rotating the back-up wrench of turret head or hexagonal (hexagon)nut, monkey wrench, double offset ring spanner, wherein, back-up wrench and monkey wrench are owing to all have a peristome, so be referred to as open-end wrench, yet, be subject to use occasion sometimes, spanner can't be rotated continuously, after its application of force is rotated an angle, must temporarily take out the disengaging binding member earlier, resetting combines with binding member again again, once more application of force rotating spanner, yet, so mode of operation rather bothers, often need through repeatedly heavily cover operation, dismounting or the spiral shell that can finish this binding member are solid.

[summary of the invention]

When improving above-mentioned existing wrench operated, can't rotate continuously sometimes and the disappearance that needs to take out, the object of the present invention is to provide a kind of directly reverse rotation, to make things convenient for the open-end wrench of continued operation.

In order to achieve the above object, the invention provides a kind of open-end wrench, it comprises a fixed block and a movable block, a wherein end of this fixed block and movable block is provided with at interval and forms a peristome, fixed block differs from this end of peristome and extends a joint portion, assembling one lever in the joint portion, this lever be with an end insert group wherein in the joint portion, and can slippage in the joint portion, be provided with a chute in this end of fixed block adjacent openings portion again, described movable block is promptly established a plug-in card in chute, and slide block that can slippage in chute is provided with an elastomer in addition in chute and between the slide block, makes movable block when differing from this end of fixed block and strut, can be subjected to elastomeric elastic force effect and retract, and be to be meshing with each other between the slide block of movable block and the lever.By said structure, when can't continued operation rotating binding member, can directly reverse under the situation that does not break away from binding member resets, and operates with continuation.

The present invention also provides a kind of open-end wrench, it is characterized in that: comprising: a fixed block and a movable block, a wherein end of this fixed block and movable block is provided with at interval and forms a peristome, the end that this fixed block differs from peristome extends a joint portion, assembling one lever in this joint portion, this lever be with an end insert group wherein in this joint portion, and can slippage in the joint portion, end in contiguous this peristome of this fixed block is provided with a chute, described movable block is provided with a plug-in card in this chute, and slide block that can slippage in this chute, be provided with an elastomer in this chute and between this slide block, one end of contiguous this movable block of described lever is provided with an axial driving screw parallel with the moving direction of this slide block, and the slide block of this movable block then is provided with and the intermeshing tooth of this driving screw portion.

Described open-end wrench is characterized in that: on the joint portion side of described fixed block, be provided with a groove that communicates with this chute, a described elastomeric wherein end colludes is located at this groove, and the other end then colludes the slide block of being located at this movable block.

Described open-end wrench is characterized in that: the joint portion of described fixed block is provided with a cover access slot that communicates with chute, this cover access slot stage casing establish a width greater than the cover access slot place restrictions on groove, a wherein end of this lever is correspondingly to be inserted in the cover access slot and to place restrictions in the groove.

Described open-end wrench is characterized in that: described cover access slot is through the surface, joint portion of this fixed block, and other establishes a cover plate, and this cover plate is positioned at the side surface that is provided with the cover access slot of joint portion.

Implement after the above-mentioned technological means, the obtainable concrete effect of the present invention is:

It is except the operating function that can implement general spanner rotation hexagon binding member, when being obstructed and can't being rotated further in its operating space, must reset when operating again, spanner does not need to leave binding member, promptly can directly reverse, when the diagonal angle of hexagon binding member struts movable block, movable block promptly can push against lever simultaneously and break away from, be inverted to the opposite side position of binding member, movable block promptly can be subjected to elastomeric drawing and reset, and so, counter-rotating resets continuously, treat to the precalculated position, lever is pushed back get final product again.

[description of drawings]

Fig. 1 is the sectional perspective outward appearance decomposing schematic representation that the present invention applies to monkey wrench.

Fig. 2 is the plane combination generalized section that the present invention applies to monkey wrench.

Fig. 3 is that the present invention applies to the monkey wrench activities schematic diagram in when counter-rotating.

Fig. 4 is the sectional perspective outward appearance decomposing schematic representation that the present invention applies to back-up wrench.

Fig. 5 is the plane combination generalized section that the present invention applies to back-up wrench.

Fig. 6 is that the present invention applies to the back-up wrench activities schematic diagram in when counter-rotating.

[specific embodiment]

See also shown in Fig. 1,4, it is the kenel of two open-end wrench, Fig. 1 is that monkey wrench 10, Fig. 4 are back-up wrench 50, two spanner all has a peristome 100,500, built in hexagonal binding member periphery, the width of the peristome 100 of monkey wrench 10 shown in Figure 1 is for can adjust shape, to cooperate the hexagon binding member of different size so as to cover, the width of the peristome 500 of back-up wrench 50 shown in Figure 4 then can't be adjusted, and only can be applicable to the hexagon binding member of single specification.Wherein, the peristome 100 of described monkey wrench 10 is made of a fixed block 11 and a movable block 12, please consult shown in Figure 2 simultaneously, described fixed block 11 a wherein end extends a joint portion 110, be provided with a cover access slot 111 in the middle of this joint portion 110, for a lever 30 plug-in cards in this cover access slot 111 in, fixed block 11 adjacent openings portions 100 these ends are provided with a chute 112, be provided with a groove 113 that communicates with chute 112 in fixed block 11 away from movable block 12 these sides again, described movable block 12 then slightly is the L type, it is provided with corresponding being inserted in the chute 112, and the slide block 120 that can move along chute 112, this slide block 120 and by an elastomer 20 drawings in groove 113, that is, make movable block 12 normalities keep the power that clamps towards fixed block 11 these sides by the elastic force effect of elastomer 20.

Described lever 30 adjacent openings portions 100 these ends are arranged with a tank 31, in this tank 31, be assembled with an axial driving screw 40 parallel with slide block 120 moving directions of movable block 12, the slide block 120 of movable block 12 a wherein end then is provided with one section tooth portion 121 of meshing with this driving screw 40, when rotating driving screw 40, promptly can adjust the position of movable block 12, and then the width of change peristome 100, to be used hexagon binding member A in different size.

What cover access slot 111 stage casings of described again fixed block 11 were provided with one section wider width places restrictions on groove 1110, promptly be correspondingly positioned at this and place restrictions in the groove 1110 and lever 30 is assembled with driving screw 40 these ends, lever 30 and can be mobile slightly in this places restrictions on groove 1110, movably distance need be greater than the depth of engagement of movable block 12 with driving screw 40 for it, again, come off for fear of lever 30 in addition, therefore, be provided with one in 110 surfaces, joint portion of fixed block 11 and can cover on the cover plate 15 that overlaps access slot 111 and lever 30 surfaces.

The aforementioned kenel that is the invention process in monkey wrench 10, during use, promptly by peristome 100 clippings in the opposite side of binding member A, rotated again and got final product, if it can't rotate continuously and must reverse when resetting, can be directly as shown in Figure 3 with lever 30 past opposite spins, movable block 12 promptly can combined element A the diagonal angle strut, and then pushing and pressing lever 30 is backed out together with driving screw 40, when treating that it rotates to binding member A opposite side position, movable block 12 is subjected to the elastic force of elastomer 20 and the (not shown) that resets, precalculated position to be rotated to, again lever 30 is passed toward movable block 12 directions, driving screw 40 is meshed again again, again rotating operation with the tooth portion 121 of movable block 12.

From the above, design of the present invention in the time of can making wrench operated, does not need to break away from binding member (A), and can directly reverse, and continued operation improves the convenience of operation.

Based on above-mentioned design concept, the present invention can also apply to the back-up wrench 50 of Fig. 4, that is, its peristome 500 these ends are provided with a fixed block 51, one movable block 52, fixed block 51 is provided with a joint portion, be provided with a cover access slot 511 in the joint portion, what cover access slot 511 stage casings were provided with wider width places restrictions on groove 5110, for the corresponding cover access slot 511 and placing restrictions in the groove 5110 that is inserted in of a wherein end of a lever 70, and can straight line slippage in placing restrictions on groove 5110, fixed block 51 is provided with a chute 510 that communicates with cover access slot 511, movable block 52 then is provided with the slide block 520 of a corresponding positions in chute 510, has the gap between the two ends of this slide block 520 and the chute 510, make the slide block 520 can slippage in chute 510, wherein end in slide block 520, and be provided with an elastomer 60 that movable block 52 is drawn toward fixed block 51 these laybacks between the chute 510, between slide block 520 and lever 70, be provided with in addition intermeshing

tooth portion

521,71,

tooth portion

521,71 the depth of engagement is can be in the displacement in the chute 510 less than movable block 52.In addition in order to prevent that lever 70 from deviating from, therefore be provided with a cover plate 55 that can cover on slide block 520 surfaces of lever 70 and movable block 52 in the surface, joint portion of fixed block 51.

It uses situation shown in Fig. 5,6, by peristome 500 clippings in binding member A opposite side rotary manipulation, when counter-rotating, promptly the diagonal angle by binding member A struts movable block 52 outward, and then pass lever 70 and push open, when treating the opposite side position to predetermined hexagonal binding member A, lever 70 is pushed back to mesh again again and get final product with movable block 52.

Claims

1, a kind of open-end wrench, it is characterized in that: comprising: a fixed block and a movable block, a wherein end of this fixed block and movable block is provided with at interval and forms a peristome, the end that this fixed block differs from peristome extends a joint portion, assembling one lever in this joint portion, this lever be with an end insert group wherein in this joint portion, and can slippage in the joint portion, end in contiguous this peristome of this fixed block is provided with a chute, described movable block is provided with a plug-in card in this chute, and slide block that can slippage in this chute is provided with an elastomer, and is to be meshing with each other between the slide block of this movable block and this lever in this chute and between this slide block.

2, open-end wrench as claimed in claim 1 is characterized in that: on the joint portion side of described fixed block, be provided with a groove that communicates with this chute, a described elastomeric wherein end colludes is located at this groove, and the other end then colludes the slide block of being located at this movable block.

3, open-end wrench as claimed in claim 1 or 2, it is characterized in that: the joint portion of described fixed block is provided with a cover access slot that communicates with chute, this cover access slot stage casing establish a width greater than the cover access slot place restrictions on groove, a wherein end of this lever is correspondingly to be inserted in the cover access slot and to place restrictions in the groove.

4, open-end wrench as claimed in claim 3 is characterized in that: described cover access slot is through the surface, joint portion of this fixed block, and other establishes a cover plate, and this cover plate is positioned at the side surface that is provided with the cover access slot of joint portion.

5, a kind of open-end wrench, it is characterized in that: comprising: a fixed block and a movable block, a wherein end of this fixed block and movable block is provided with at interval and forms a peristome, the end that this fixed block differs from peristome extends a joint portion, assembling one lever in this joint portion, this lever be with an end insert group wherein in this joint portion, and can slippage in the joint portion, end in contiguous this peristome of this fixed block is provided with a chute, described movable block is provided with a plug-in card in this chute, and slide block that can slippage in this chute, be provided with an elastomer in this chute and between this slide block, one end of contiguous this movable block of described lever is provided with an axial driving screw parallel with the moving direction of this slide block, and the slide block of this movable block then is provided with and the intermeshing tooth of this driving screw portion.

6, open-end wrench as claimed in claim 5 is characterized in that: on the joint portion side of described fixed block, be provided with a groove that communicates with this chute, a described elastomeric wherein end colludes is located at this groove, and the other end then colludes the slide block of being located at this movable block.

7, as claim 5 or 6 described open-end wrench, it is characterized in that: the joint portion of described fixed block is provided with a cover access slot that communicates with chute, this cover access slot stage casing establish a width greater than the cover access slot place restrictions on groove, a wherein end of this lever is correspondingly to be inserted in the cover access slot and to place restrictions in the groove.

8, open-end wrench as claimed in claim 7 is characterized in that: described cover access slot is through the surface, joint portion of this fixed block, and other establishes a cover plate, and this cover plate is positioned at the side surface that is provided with the cover access slot of joint portion.