CN202010969U

CN202010969U - Open spanner

Info

Publication number: CN202010969U
Application number: CN2011201057032U
Authority: CN
Inventors: 詹淑素
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-04-12
Filing date: 2011-04-12
Publication date: 2011-10-19
Anticipated expiration: 2021-04-12

Abstract

The utility model discloses an open spanner which consists of a spanner body, a ratchet, a thorn block and an elastic element, wherein one end of the spanner body is provided with a headstock; the headstock is provided with an embedding hole and a jaw opening; a clamp chamber and an annular groove communicated with the clamp chamber are concavely arranged on the wall of the embedding hole; a limit ring is embedded in the annular groove, and the hole diameter of an inner hole formed by the limit ring is less than or equal to the hole diameter of the embedding hole; the ratchet is pivoted in the inner hole of the limit ring; an outer tooth part is annularly arranged at the periphery of the ratchet; the ratchet is provided with a bolt hole and a notch; the thorn block is arranged in the clamp chamber and is provided with a baffle groove which is matched with the limit ring; the thorn block also has a front side which can be butted with the periphery of the ratchet; the left half part of the front side of the thorn block is provided with latch which can be meshed with the outer tooth part of the ratchet, and the right half part of the front side of the thorn block is provided with an escape zone which can slip with the outer tooth part of the ratchet; and the elastic element is arranged in the clamp chamber and can provide default elasticity to the thorn block, so that the latch of the thorn block can be meshed with the outer tooth part of the ratchet at any time, and the ratchet can be operated by a pull rod to exert force and rotate in one direction.

Description

Open-end wrench

Technical field

The utility model relates to a kind of spanner, refers in particular to a kind of open-end wrench that ratchet is installed.

Background technology

The open-end wrench of jaw mouth fixed size, its spiral lock that can Gong be complementary inserts, in order to reach the function that screws or unscrew, after screwing or unscrew the angle that arrives the difficult application of force again, the jaw mouth of this open-end wrench must be withdrawed from from spiral lock, make open-end wrench reply the angle that can make things convenient for the application of force then, this action must repeat again and again, till spiral lock is screwed fully or unscrews, yet, this kind mode of operation quite wastes time and energy really for the user, often causes user's greatly puzzlement in use.

Therefore, how to provide a kind of and need not insert, withdraw from spiral lock again with the jaw of open-end wrench is salty, can reach the function that screws or unscrew spiral lock by reciprocal rotation open-end wrench, when being the ardent hope of market institute.

In view of this, do not attain perfect many disappearances and the inconvenience that causes on the structural design of the design people at above-mentioned spanner, and deeply design, and the active research improvement has a fling at and development and Design goes out the utility model.

The utility model content

The purpose of this utility model is to provide a kind of simple to operate and time saving and energy saving open-end wrench.

In order to reach above-mentioned purpose, solution of the present utility model is:

A kind of open-end wrench, it includes: a wrench body, a ratchet, a sour jujube piece, a flexible member,

This wrench body, its have a tommy bar, connect the headstock, of establishing the tommy bar end axially run through headstock up and down insert the hole, a radial communication is inserted the inside and outside jaw mouth in hole, this is inserted wall surface of the hole and is concaved with the annular groove that a clip chamber, two is communicated with the clip chamber, these annular groove two ends do not communicate with the jaw mouth, build-in restraining position ring block then in the annular groove, the endoporus of spacing ring is not more than the aperture of inserting the hole; This ratchet penetrates in inserting the hole, and it is hubbed in the endoporus of spacing ring, and this ratchet peripheral ring is provided with outer toothed portion, and this ratchet has a keyhole that axially runs through and the inside and outside breach of a radial communication keyhole; This sour jujube piece is arranged in the clip chamber, it has the retaining groove with the annular groove coupling, make spacing ring can limit this sour jujube piece, this sour jujube piece also has the front that can dock the ratchet periphery, the left side in this sour jujube piece front have can mesh ratchet gear the latch of outer toothed portion, then have and can flee from the district as for right-hand part with the ratchet outer toothed portion is skidded; And this flexible member is installed in the clip chamber, makes flexible member can provide acquiescence elastic force to give this sour jujube piece, makes sour jujube piece latch and ratchet outer toothed portion have the gesture of engagement at any time, and makes tommy bar can operate the rotation of the ratchet one-way application of force.

The above-mentioned wall surface of the hole of inserting is communicated with an annular groove respectively in clip chamber upper limb, lower edge, and the build-in of two spacing ring correspondences wherein; The upper and lower retaining groove that is complementary with annular groove that also is provided with of this sour jujube piece with limiting this sour jujube piece so that two spacing rings can see through two retaining grooves, and makes in the upper and lower endoporus that is hubbed at two spacing rings that can be the external diameter constriction of ratchet outer toothed portion.

Above-mentioned ratchet is equipped with the symmetrical ring cowling of a shape in the bottom, this ring cowling end face fits perfectly in the headstock bottom surface, partly periphery be able to slightly be given prominence to the headstock periphery.

Above-mentioned headstock is equipped with main catching groove in inserting the wall surface of the hole root edge, and these main catching groove two ends do not communicate with the jaw mouth; The ratchet root edge is equipped with one can be for first catching groove of first clasp installation, and the described first catching groove two ends are communicated with breach, and this first clasp can corresponding be connected in the main catching groove of headstock.

The top of above-mentioned ratchet is equipped with the symmetrical hub cap of a shape, makes hub cap have the opening that is complementary with breach, and this hub cap bottom surface fits perfectly in the headstock end face, partly periphery be able to slightly be given prominence to the headstock periphery.

Above-mentioned headstock is equipped with secondary catching groove in inserting the wall surface of the hole apical margin, and these secondary catching groove two ends do not communicate with the jaw mouth; Hub cap then has can stretch into the collar of inserting the hole apical margin, this collar endoporus, ratchet periphery also have public card division, the master card portion of interlock mutually, being provided with one at collar peripheral ring can be for second catching groove of second clasp installation, described second catching groove two ends and the open communication, this second clasp can corresponding be connected in the secondary catching groove of headstock.

Above-mentioned sour jujube piece is provided with a public assembled portion in back side central authorities, then has female assembled portion on the other side in the clip chamber, makes flexible member be installed between public assembled portion, the female assembled portion.After adopting said structure, when jaw mouth of the present utility model and breach relatively and can directly insert out in the keyhole of drive division for spiral lock, when making the keyhole energy socket spiral lock application of force, its sour jujube piece left side can abut against the corresponding sidewall in the clip chamber, so that the fixing engagement of latch and outer toothed portion, unidirectional reciprocal application of force rotating ratchet, when the tommy bar desire drives ratchet when other direction rotates, its sour jujube piece right side just can abut against the corresponding sidewall in the clip chamber, so that but latch and outer toothed portion are the elasticity disengaged position, and see through arc and flee from district and outer toothed portion and be and skid or evade state, rotate the effect that resets to reach backlash, the user just must not repeat to insert, withdraw from spiral lock, can reach the function that screws or unscrew spiral lock by reciprocal operation tommy bar, it has simple to operate and time saving and energy saving effect.

Description of drawings

Fig. 1 is a combination schematic diagram of the present utility model;

Fig. 2 is a decomposing schematic representation of the present utility model;

Fig. 3 is that the utility model is along inserting the axial combination generalized section in hole;

Fig. 4 be the utility model along insert the aperture to the combination generalized section;

Fig. 5 is an embodiment schematic diagram of the present utility model;

Fig. 6 is an action schematic diagram of the present utility model.

The main element symbol description

W spiral lock 10 wrench body 11 tommy bars

12 headstocks 13 are inserted hole 14 jaw mouths

Clip chambers 15 151 female assembled portion 161,162 annular grooves

171,172 spacing rings, 170 endoporus, 181 main catching grooves

182 secondary catching groove 20 ratchets 21 outer toothed portion

22 keyholes, 23 breach, 24 first catching grooves

25 first clasps, 26 ring cowlings, 261 pulling parts

27 master card portions, 30 hub caps, 31 openings

32 collars, 33 public card divisions, 34 second catching grooves

35 second clasps, 36 pulling parts, 40 sour jujube pieces

41,42 retaining grooves, 43 latches 44 are fled from the district

45 public assembled portion 50 flexible members.

The specific embodiment

In order further to explain the technical solution of the utility model, the utility model is elaborated below by specific embodiment.

See also Fig. 1 to Fig. 6, the utility model includes at least:

One wrench body 10, it has a tommy bar 11, one connects the headstock 12 of establishing tommy bar 11 ends, one axially runs through headstock inserts hole 13 about in the of 12, one radial communication is inserted the jaw mouth 14 inside and outside the hole 13, described headstock 12 also is concaved with at least one clip chamber 15 inserting hole 13 walls, at clip chamber 15 upper limbs, lower edge is communicated with an annular groove 161 respectively, 162, these annular grooves 161,162 two ends do not communicate with jaw mouth 14, correspondence provides two spacing rings 171,172 build-ins wherein, make spacing ring 171,172 formed endoporus, 170 apertures are not more than the aperture of inserting hole 13, in addition, headstock 12 also is equipped with main catching groove 181 inserting hole 13 wall root edges, apical margin is equipped with secondary catching groove 182, this main catching groove 181, secondary catching groove 182 two ends do not communicate with jaw mouth 14;

One ratchet 20, its periphery penetrates to be inserted in the hole 13, and be equipped with outer toothed portion 21, make in the upper and lower endoporus 170 that is hubbed at two spacing rings 171,172 that can be the external diameter constriction of ratchet 20 outer toothed portion 21, so this two spacing ring 171,172 just has the effect of thrust bearing, for making things convenient for ratchet 20 can insert in the endoporus 170 of two spacing rings 171,172, it is provided with chamfering or arc angle in ratchet 20 tops; This ratchet 20 provides one at central axis can be for spiral lock W involutory keyhole 22, has the inside and outside breach 23 of a radial communication keyhole 22, and this breach 23 can be complementary with the jaw mouth 14 of headstock 12; These ratchet 20 root edges are equipped with one can be for first catching groove 24 of first clasp, 25 installations, described first catching groove 24 two ends are communicated with breach 23, this first clasp 25 can corresponding be connected in the main catching groove 181 of headstock 12, because main catching groove 181 two ends do not communicate with jaw mouth 14, so first clasp 25 is fixed in the main catching groove 181, so that at ratchet 20 time rotationals, first catching groove 24 of this ratchet 20 can be along the rotation freely of first clasp 25; For allowing the user manual backlash rotate this ratchet 20, it has extended out a ring cowling 26 in ratchet 20 bottom outer periphery, these ring cowling 26 end faces fit perfectly in headstock 12 bottom surfaces, partly periphery be able to slightly be given prominence to headstock 13 peripheries, so, can see through and rotate partly periphery of ring cowling 26, with so that ratchet 20 breach 23 can with the 14 quick contrapositions of jaw mouth, to provide Fig. 5 spiral lock W to insert in the keyhole 22, spiral lock W is deviate from this keyhole 22, certainly, if be provided with the pulling part 261 of matsurface or polygon facet in these ring cowling 26 peripheries, make these ratchet 20 breach 23 positions of the more convenient adjustment of user;

One-turn cap 30, it is fixed in the other end that ratchet 20 differs from ring cowling 26, these hub cap 30 shapes and ring cowling 26 are symmetrical, has the opening 31 that is complementary with breach 23, and make hub cap 30 bottom surfaces fit perfectly in headstock 12 end faces, partly periphery be able to slightly be given prominence to headstock 13 peripheries, and have and to stretch into the collar 32 of inserting hole 13 apical margins, these collar 32 endoporus, ratchet 20 peripheries have the public card division 33 of interlock mutually, master card portion 27, being provided with one at the collar 32 peripheral rings can be for second catching groove 34 of second clasp, 35 installations, described second catching groove 34 two ends are communicated with opening 31, this second clasp 35 can corresponding be connected in the secondary catching groove 182 of headstock 12, because secondary catching groove 182 two ends do not communicate with jaw mouth 14, so second clasp 35 is fixed in the secondary catching groove 182, so that when rotating hub cap 30 peripheries, second catching groove 34 of hub cap 30 can be along the rotation freely of second clasp 35, with so that ratchet 20 breach 23 can with the 14 quick contrapositions of jaw mouth, if be provided with the pulling part 36 of matsurface or polygon facet in these hub cap 30 peripheries, make these ratchet 20 breach 23 positions of the more convenient adjustment of user;

One sour jujube piece 40, being installed in the clip chamber 15 of its correspondence, on this sour jujube piece 40, have and annular groove 161,162 retaining grooves that are complementary 41,42, make spacing ring 171,172 can limit this sour jujube piece 40 enters and inserts in the hole 13, be formed with a space between these sour jujube piece 40 left and right sides and clip chamber 15 adjacent walls, has the front that to dock ratchet 20 peripheries, this positive left side is provided with the latch 43 of energy mesh ratchet gear 20 outer toothed portion 21, this positive right-hand part then is provided with and can flees from district 44 with the arc that ratchet 20 outer toothed portion 21 are skidded, in addition, these sour jujube piece 40 back side central authorities are provided with a public assembled portion 45, as for clip chamber 15 also have with relative female assembled portion 151; And

One flexible member 50, it is installed between public assembled portion 45, the female assembled portion 151, makes this flexible member 50 can provide default elastic force to give sour jujube piece 40, the engagement when keeping sour jujube piece 40 latches 43 and ratchet 20 outer toothed portion 21 relative.

Please cooperate Fig. 4 to Fig. 6, when jaw mouth 14 of the present utility model and breach 23 relatively and can directly insert out in the keyhole 22 of drive division for spiral lock W, when making the keyhole 22 energy socket spiral lock W application of forces, its sour jujube piece 40 left sides can abut against the 15 corresponding sidewalls in the clip chamber, so that the fixing engagement of latch 43 and outer toothed portion 21, unidirectional reciprocal application of force rotating ratchet 20, but, when tommy bar 11 desires drive ratchet 20 when other direction rotates, its sour jujube piece 40 right sides just can abut against the 15 corresponding sidewalls in the clip chamber, so that but latch 43 is the elasticity disengaged position with outer toothed portion 21, and see through arc and flee from district 44 and outer toothed portion 21 and be and skid or evade state, rotate the effect that resets to reach backlash, so, the user just must not repeat to insert, withdraw from spiral lock W, can reach the function that screws or unscrew spiral lock W by reciprocal operation tommy bar 11, it has simple to operate and time saving and energy saving effect.

In this special instruction, this case is characterised in that: two spacing rings 171,172 formed endoporus, 170 apertures are not more than inserts 13 apertures, hole, make ratchet 20 peripheries can be directly in spacing ring 171, rotation in the 172 formed endoporus 170, can not insert hole 13 rotations in large-area edge, thus, when the rotation that can make this ratchet 20 more smooth and easy, moreover, this two spacing ring 171,172 is exactly the clasp that is commonly called as, and its normalized goods must be through Overheating Treatment, its wear-resisting number is far above inserting hole 13, so do not have the problem of impairment in service life,, need only change this spacing ring 171 yet even if loosening to some extent, 172 get final product.

The foregoing description and accompanying drawing and non-limiting product form of the present utility model and style, any person of an ordinary skill in the technical field all should be considered as not breaking away from patent category of the present utility model to its suitable variation or modification of doing.

Claims

1. an open-end wrench is characterized in that, includes:

One wrench body, its have a tommy bar, connect the headstock, of establishing the tommy bar end axially run through headstock up and down insert the hole, a radial communication is inserted the inside and outside jaw mouth in hole, this is inserted wall surface of the hole and is concaved with the annular groove that a clip chamber, two is communicated with the clip chamber, these annular groove two ends do not communicate with the jaw mouth, build-in restraining position ring block then in the annular groove, the endoporus of spacing ring is not more than the aperture of inserting the hole;

One penetrates the ratchet in inserting the hole, and it is hubbed in the endoporus of spacing ring, and this ratchet peripheral ring is provided with outer toothed portion, and this ratchet has a keyhole that axially runs through and the inside and outside breach of a radial communication keyhole;

One is arranged in the sour jujube piece in the clip chamber, it has the retaining groove with the annular groove coupling, make spacing ring can limit this sour jujube piece, this sour jujube piece also has the front that can dock the ratchet periphery, the left side in this sour jujube piece front have can mesh ratchet gear the latch of outer toothed portion, then have and can flee from the district as for right-hand part with the ratchet outer toothed portion is skidded; And

One flexible member, it is installed in the clip chamber, makes flexible member can provide acquiescence elastic force to give this sour jujube piece, makes sour jujube piece latch and ratchet outer toothed portion have the gesture of engagement at any time, and makes tommy bar can operate the rotation of the ratchet one-way application of force.

2. open-end wrench according to claim 1, it is characterized in that: this is inserted wall surface of the hole and is communicated with an annular groove respectively in clip chamber upper limb, lower edge, and the build-in of two spacing ring correspondences is wherein; The upper and lower retaining groove that is complementary with annular groove that also is provided with of this sour jujube piece with limiting this sour jujube piece so that two spacing rings can see through two retaining grooves, and makes in the upper and lower endoporus that is hubbed at two spacing rings that can be the external diameter constriction of ratchet outer toothed portion.

3. open-end wrench according to claim 1, it is characterized in that: this ratchet is equipped with the symmetrical ring cowling of a shape in the bottom, and this ring cowling end face fits perfectly in the headstock bottom surface, partly periphery be able to slightly be given prominence to the headstock periphery.

4. as open-end wrench as described in the claim 3, it is characterized in that: this headstock is equipped with main catching groove in inserting the wall surface of the hole root edge, and these main catching groove two ends do not communicate with the jaw mouth; The ratchet root edge is equipped with one can be for first catching groove of first clasp installation, and the described first catching groove two ends are communicated with breach, and this first clasp can corresponding be connected in the main catching groove of headstock.

5. as open-end wrench as described in the claim 3, it is characterized in that: the top of this ratchet is equipped with the symmetrical hub cap of a shape, makes hub cap have the opening that is complementary with breach, and this hub cap bottom surface fits perfectly in the headstock end face, partly periphery be able to slightly be given prominence to the headstock periphery.

6. as open-end wrench as described in the claim 5, it is characterized in that: this headstock is equipped with secondary catching groove in inserting the wall surface of the hole apical margin, and these secondary catching groove two ends do not communicate with the jaw mouth; Hub cap then has can stretch into the collar of inserting the hole apical margin, this collar endoporus, ratchet periphery also have public card division, the master card portion of interlock mutually, being provided with one at collar peripheral ring can be for second catching groove of second clasp installation, described second catching groove two ends and the open communication, this second clasp can corresponding be connected in the secondary catching groove of headstock.

7. open-end wrench as claimed in claim 1 or 2, it is characterized in that: this sour jujube piece is provided with a public assembled portion in back side central authorities, then has female assembled portion on the other side in the clip chamber, makes flexible member be installed between public assembled portion, the female assembled portion.