CN201394803Y

CN201394803Y - Switch type ratchet wrench

Info

Publication number: CN201394803Y
Application number: CN2009201473327U
Authority: CN
Inventors: 刘圳雄; 沈瑞骑
Original assignee: Stanley Chiro International Ltd
Current assignee: Stanley Chiro International Ltd
Priority date: 2009-04-14
Filing date: 2009-04-14
Publication date: 2010-02-03
Anticipated expiration: 2019-04-14

Abstract

A switch type ratchet wrench includes a wrench main body, a group of ratchet units and a group of direction control units. The ratchet unit has a drive head and a clamp block. The direction control unit has a shifting button, a lifting element and a positioning pin. The shifting button uses the lifting element to control the clamp block to switch the left and right positions. The positioning pin is perpendicularly inserted into the inner wall of the wrench main body and is embedded with the periphery of the shifting button to position. An overstepping obstruction effect is produced when the shifting button drives the lifting element to pass through the positioning pin. Therefore, the switch type ratchet wrench is convenient to utilize.

Description

The suitching type ratchet spanner

Technical field

The utility model relates to a kind of Wrench, particularly relates to a kind of suitching type ratchet spanner with good ease of use.

Background technology

Referring to Fig. 1, shown in Figure 2, general ratchet spanner 10 mainly has a wrench body 11, a ratchet driving head 12 that is located at wrench body 11 head end places, one is set in the clipping block 13 that wrench body 11 inside can be done engagement to ratchet driving head 12, and pivot is arranged on the direction control module 14 of changeable clipping block 13 positions on the wrench body 11, clipping block 13 front sides places be provided with one with the ratchet clamping part 131 of ratchet driving head 12 engagements, the rear side place is provided with a recess 132, direction control module 14 includes a rotation toggle 141, one is located in the spring 142 of rotation toggle 141 inside, one is set in the push pedal 143 that spring 142 front end places are the E shape, reach one and insert the E type fastener 144 that is embedded in these rotation toggle 141 lower ends, this push pedal 143 is subjected to the spring 142 butted clipping block 13 rear side recesses 132 that head into, rotation toggle 141 can drive clipping block 13 by push pedal 143 and move the position to the left or to the right, in order to switch the clamped position of clipping block 13 and ratchet driving head 12, reach the effect of control ratchet driving head 12 gyratory directions whereby.

Though above-mentioned ratchet spanner 10 can reach the function that direction is switched, but still have its defective to exist in the use, the rotation toggle 141 of general ratchet spanner 10 is to produce interlock by spring 142 and push pedal 143 with clipping block 13, the retaining that clipping block 13 is subjected to wrench body 11 endoporus walls supports, can define rotation toggle 141 and dial the extreme position of commentaries on classics to the left or to the right, during the intermediate point position of switching about yet clipping block 13 will pass through, but separated without any obstacle, therefore rotate toggle 141 in the middle of use, caused changeing wrong direction by false touch easily, cause operator's puzzlement.

Summary of the invention

The utility model purpose provides a kind of suitching type ratchet spanner with good ease of use.

For achieving the above object, the utility model provides a kind of suitching type ratchet spanner, include a wrench body, a ratchet unit and a direction control module, wherein: this wrench body has a head end, this head end inside is provided with one first room, be provided with one second room adjacent to first room, one side edge, be provided with one the 3rd room adjacent to second room, one side edge; This ratchet unit has a driving head and that is located in first room and is arranged on the clipping block that depends on the neighbour in second room with driving head mutually, this driving head periphery is provided with a ring tooth, this place, clipping block front side is provided with a ratchet part, the rear side place is provided with one and supports only recess, clipping block can be in second room about the activity displacement, make ratchet part be meshed with this ring tooth; The direction control module have a toggle, that is located in the 3rd room connect the top that is located in toggle inside pull part and always vertical cutting be embedded in the alignment pin at place in the middle of the 3rd room inwall, this top heads into clipping block to ending in the recess with pulling part one end springing, make toggle can drive about clipping block and change direction by the top part of pulling, part other end springing ground is pulled along moving to the 3rd room inwall in the top, this alignment pin can be located the chimeric formation of toggle periphery, and can form offside obstruct when pushing up the part of pulling by alignment pin.

The beneficial effects of the utility model are: the place uprightly plugs an alignment pin in the middle of the 3rd room inwall, makes toggle form offside obstruct when the switching right and left direction, and toggle can not turn to arbitrarily and has an easy-to-use effect whereby.

Description of drawings

Fig. 1 is the exploded perspective view of general ratchet spanner;

Fig. 2 is the assembled sectional view of general ratchet spanner;

Fig. 3 is the exploded view of the utility model suitching type ratchet spanner first preferred embodiment, illustrates that the utility model includes a wrench body, a ratchet unit and a direction control module;

Fig. 4 is the assembled sectional view of above-mentioned preferred embodiment;

Fig. 5 is the action diagram of above-mentioned preferred embodiment, and the direction control module switches to the situation in left side;

Fig. 6 is the action diagram of above-mentioned preferred embodiment, and the direction control module switches to the situation on right side;

Fig. 7 is the exploded view of the utility model second preferred embodiment, illustrates that the other direction control module comprises a spring with kink;

Fig. 8 is the exploded view of the utility model the 3rd preferred embodiment, illustrates that the other direction control module comprises a spring, one first hollow pins and one second hollow pins.

The specific embodiment

Aforementioned and other technology contents, characteristics and effect about the utility model, below cooperate the explanation of several preferred embodiments with reference to the accompanying drawings, can clearly present, the utility model suitching type ratchet spanner will be elaborated below by most preferred embodiment and accompanying drawing.

Referring to Fig. 3, Fig. 4 and shown in Figure 5, the utility model suitching type ratchet spanner is in first preferred embodiment, mainly comprise a wrench body 20, a ratchet unit 30 and a direction control module 40, then, after again the detailed construction of above-mentioned each unit and interblock space kenel being specified in.

This wrench body 20 has a head end 21, these head end 21 inside are concaved with one and are first room 211 of justifying the seat hole shape, be concaved with one second room 212 adjacent to first room, 211 1 side edge, be provided with the 3rd room 213 that is the cylindrical hole shape adjacent to second room, 212 1 side edge, be positioned at the 3rd room 213 inwalls in the middle of the place more be provided with a pin-and-hole 214.

This ratchet unit 30 has a driving head 31 that is located in first room 211, one is located in the control lever 32 of driving head 31 centre, one is set in the spring 33 on the control lever 32, one is set in the clip steel ball 34 of driving head 31 inside, and one be arranged in second room 212 with driving head 31 mutually by neighbour's clipping block 35, these driving head 31 peripheries are provided with a ring tooth 311, its place, end is provided with a square bolt part 312, control lever 32 is subjected to the influence that spring 33 elastic force promote, can drive the outer surface that clip steel ball 34 protrudes in square bolt part 312, this clipping block 35 is the blocks that slightly are the first quarter moon shape, its place, front side is provided with a ratchet part 351, the rear side place is provided with one and supports only recess 352, clipping block 35 can be in second room 212 about the activity displacement, make ratchet part 351 be meshed with this ring tooth 311.

Direction control module 40 has a toggle 41 that is located in the 3rd room 213, one connects the top the be located in toggle 41 inside part 42 of pulling, and vertical cutting is embedded in alignment pin 43 in this pin-and-hole 214 always, this toggle 41 has a shaft 411, and one be located at shaft 411 1 ends can for operator's hand dial commentaries on classics shank 412, these shaft 411 peripheries connect and are provided with a perforation 413, rear side periphery wall place is concaved with a groove 414 with predetermined arc angle, the place is concaved with a breach 415 that can supply alignment pin 43 to be inserted in the middle of being positioned at groove 414, in the present embodiment, this top part 42 of pulling includes a spring 421, one hollow pins 422 and a steel ball 423, this spring 421 is set in the perforation 413 of toggle 41, its front end can butted hollow pins 422 heads into supporting of clipping block 35 to be ended in the recess 352, make toggle 41 can drive clipping block 35 conversion left and right directions positions by the top part 42 of pulling, spring 421 rear ends can be moved do lift-over along supporting the 3rd room 213 inwalls by butted steel ball 423, this alignment pin 43 is the round pins that are microscler shape, the one end is provided with a portion of class 431, after this portion of class 431 is inserted in by the breach 415 of toggle 41, it is spacing just can to snap in groove 414 formation, and toggle 41 is positioned in the 3rd room 213 apace.

More than be the general introduction of each structure of the utility model suitching type ratchet spanner and shape, then, effect statement as the back that action of the present utility model and expection are reached again:

Again referring to shown in Figure 5, under general state, toggle 41 makes interlock by pull part 42 of top with clipping block 32, because alignment pin 43 protrudes from the internal perisporium of the 3rd room 213, when if toggle 41 is wanted the switching right and left position, part 42 steel balls 423 move along the 3rd room 213 inwalls owing to pull in the top, can touch alignment pin 43 and intercepted, make not conversion direction easily of toggle 41, only when the operator confirms 41 groups of commentaries on classics of toggle to be switched to other direction, a little firmly dial and change this toggle 41, make steel ball 423 compression springs 421 and surmounted alignment pin 43, just can allow toggle 41 reach the effect of switching direction position, as shown in Figure 6.

In sum, the utility model suitching type ratchet spanner mainly is in order to improve the defective of general ratchet spanner 10, its employed technological means is that the place inserts the fixed alignment pin 43 of build-in in the middle of wrench body 20 the 3rd room 213 inwalls, this alignment pin 43 protrudes in the internal perisporium face of the 3rd room 213, when switching about toggle 41 is carried out, 43 pairs of toggles 41 of alignment pin can produce spacing obstruct effectiveness, make toggle 41 can't change direction arbitrarily, only when the operator confirms to want switching direction, the obstruction that just can surmount alignment pin 43 a little to toggle 41 application of forces, make commutation action of the present utility model quite certain, have good ease of use, in addition, 43 pairs of toggles 41 of this alignment pin make chimeric, can apace toggle 41 location be installed in the 3rd room 213, have assembling effect quite easily.

What deserves to be mentioned is, the utility model pushes up the variation kenel that the part of pulling also has other different embodiment, referring to shown in Figure 7, the utility model is in second preferred embodiment, other direction control module 50 has a toggle 51, and pushes up pull a part 52 and an alignment pin 53, different with first embodiment is, this top part 52 of pulling is made up of a spring 521 and a hollow pins 522, these spring 521 rear end are provided with a kink 5211, this kink 5211 can move along supporting the 3rd room 213 inwalls, can produce the spacing effect in bullet top to alignment pin 53.

Referring to shown in Figure 8, the utility model is in the 3rd preferred embodiment, other direction control module 60 has a toggle 61, and pushes up pull a part 62 and an alignment pin 63, different with first embodiment is, this top second hollow pins 623 that first hollow pins 622 and that part 62 is set in spring 621 front end places by a spring 621, is set in spring 621 rear end of pulling is formed, second hollow pins 623 can move along supporting the 3rd room 213 inwalls, can produce the spacing effect in bullet top to alignment pin 63 equally.

Claims

1, a kind of suitching type ratchet spanner, have a wrench body and one group of ratchet unit, this wrench body has a head end, this head end inside is provided with one first room, be provided with one second room adjacent to first room, one side edge, be provided with one the 3rd room adjacent to second room, one side edge, this ratchet unit has an axle and is located at the interior driving head of first room, and one be arranged in second room with driving head mutually by neighbour's clipping block, this driving head periphery is provided with a row ring tooth, this place, clipping block front side is provided with the ratchet part that row are meshed with this ring tooth, clipping block rear side place is provided with one and supports only recess, it is characterized in that:

One prescription is to control module, has an axle and is located at toggle in the 3rd room, top that connects and flexibly be located in toggle inside upright the inserting of part and of pulling and is embedded in place in the middle of the 3rd room inwall top part of pulling is formed the alignment pin of offside obstruct.

2, suitching type ratchet spanner as claimed in claim 1 is characterized in that: this top part of pulling includes a spring, one and is set in spring front end place and heads into clipping block and support the hollow pins of ending in the recess and one and be set in the spring rear end place along supporting the steel ball that the 3rd room inwall moves.

3, suitching type ratchet spanner as claimed in claim 1, it is characterized in that: this top part of pulling includes a spring and one and is set in spring front end place and heads into clipping block and support the hollow pins of ending in the recess, and this spring rear end place is provided with an energy along supporting the kink that the 3rd room inwall moves.

4, suitching type ratchet spanner as claimed in claim 1 is characterized in that: this top part of pulling includes a spring, one and is set in spring front end place and heads into clipping block and support first hollow pins of ending in the recess and one and be set in spring rear end place and can be along supporting second hollow pins that the 3rd room inwall moves.

5, suitching type ratchet spanner as claimed in claim 1, it is characterized in that: this toggle periphery rear side place is concaved with a groove with predetermined arc angle, the place is concaved with a breach that supplies alignment pin to be inserted in the middle of being positioned at groove, and alignment pin is provided with an energy groove is formed chimeric spacing portion of class.