CN201399754Y

CN201399754Y - Two-way ratchet wrench

Info

Publication number: CN201399754Y
Application number: CN2009201457574U
Authority: CN
Inventors: 林健岳
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-04-07
Filing date: 2009-04-07
Publication date: 2010-02-10
Anticipated expiration: 2019-04-07

Abstract

The utility model relates to a two-way ratchet wrench, wherein the ratchet wrench comprises a holding rod, the front of the holding rod is provided with a head part, the head part is provided with a containing slot to pivotally arrange a ratchet, and the periphery of the ratchet is distributed with ratches and one end face is provided with a button column convexly; a reversing element is positioned in a rotary space behind the containing slot, the front of the reversing element is provided with a plurality of gears respectively at left and right; the reversing element can be turned to mesh thegear at one side with the ratches and two concave parts are arranged behind the reversing element; two spacing slots of the rotary space limits left and right deflection angles; a propping unit comprises a projectile body embedded in the head part and a spherical propping piece, and the propping piece at the front end can stretch out or draw back elastically to be propped at the concave part; anda sealing cap seals the ratchet and the reversing element. In the way, the reversing element is turned so that the concave part behind the reversing element is propped and positioned by the proppingpiece, thus avoiding the problem of unsmooth reversing operation due to the deflection abrasion and elastic fatigue of the propping piece.

Description

Reversible ratcheting tool

Technical field

The utility model relates to a kind of ratchet spanner, particularly relate to a kind of reversible ratcheting tool, to rotate a commutation element and to be subjected to a flexible top system cell location, these both sides, commutation element the place ahead have the system tooth, this system tooth is and a ratchet engaged, to control this ratchet one-way rotation, this top system unit is not rotate to avoid abrasion and elastic fatigue to produce failure problems.

Background technology

Existing first kind of known ratchet spanner as shown in Figure 1, mainly comprise a holding rod 1, this holding rod 1 front end is towards extending out to form a head 2, this head 2 articulates a ratchet 3, these ratchet 3 one side diametric planes are convexly equipped with a square drive division 4, this drive division 4 is and a bolt or nut (figure does not show) fit, reach and screw or unscrew purposes, this head 2 is established two brake component 5a again, 5b, this two

brake component

5a, 5b one end is to be articulated in this head 2, the other end is provided with system tooth 6, this system tooth 6 is the ratchet engagement with these ratchet 3 peripheries, and this brake component 5a, the 5b outside is the top system that is subjected to a spring 7, and two brake component 5a, establish a cam 8 between the 5b, driving these cam 8 rotations can push the brake component 5a of a side open, make the ratchet of the system tooth 6 disengaging ratchets 3 in its place ahead, the brake component 5b of opposite side can be subjected to its outside spring 7 elastic force and toward interior top, so that the system tooth 6 of front end and the ratchet engagement of ratchet 3, so clockwise this holding rod 1 of switching, this ratchet 3 can be subjected to the brake component 5b top system of a side motionless, to drive the bolt rotation, then this ratchet 3 this brake component of meeting ejection outward 5b are outside in switching counterclockwise, and this brake component 5b can suppress spring 7 condensations, impels this ratchet 3 to form idle running and can not drive the bolt rotation.

Because the torsion of switching concentrates entirely on system tooth 6 positions in this

brake component

5a, 5b the place ahead, cause this system tooth 6 fracture damage problems easily because of torsion is excessive.

Therefore industry is released as Fig. 2 again, second kind of ratchet spanner shown in Figure 3, be to comprise a holding rod 1b, this holding rod 1b establishes in the place ahead circular head 2b, this head 2b ratchet 3b that is pivoted, this ratchet 3b cooperates with an adjustment part 4b, establish about this adjustment part 4b the place ahead teeth 4c can with the ratchet engagement of this ratchet 3b, two arcwall face 4d of shape wave are established at the rear, one control knob 5b, this control knob 5b one end is for the hand switching, the other end is established the control piece 5c of a column, this control piece 5c is hubbed on this head 2b, and a hole is established in its inside, and this hole can be installed with an elastic component 6b, this elastic component 6b the place ahead top system one steel ball 7b, this steel ball 7b can expose and push up arcwall face 4d built in this adjustment part 4b.

Mat adjustment part 4b is subjected to the elastic force of elastic component 6b to produce the pendulum of taking back or take over, with the teeth 4c in this adjustment part 4b the place ahead and the ratchet engagement of this ratchet 3b periphery, make ratchet 3b can only produce unidirectional rotation, and then make this ratchet 3b one end turn round post 3c can with the combination of a bolt or nut, tight or change pine to drive bolt or the unidirectional commentaries on classics of nut.

But in practical operation, this control piece 5c constantly pulls about along with control knob 5b, and steel ball 7b also constantly is subjected to friction and causes loss, and this elastic component 6b contractive pressure and discharging with pushing tow steel ball 7b back and forth, also can produce elastic fatigue, cause fastening adjustment part 4b can operate the problem that has some setbacks.

This shows that above-mentioned existing ratchet spanner obviously still has inconvenience and defective, and demands urgently further being improved in structure and use.In order to solve the problem of above-mentioned existence, relevant manufacturer there's no one who doesn't or isn't seeks solution painstakingly, but do not see always that for a long time suitable design finished by development, and common product does not have appropriate structure to address the above problem, this obviously is the problem that the anxious desire of relevant dealer solves.Therefore how to found a kind of novel reversible ratcheting tool, real one of the current important research and development problem that belongs to, also becoming the current industry utmost point needs improved target.

Summary of the invention

Main purpose of the present utility model is, overcome the defective that existing ratchet spanner exists, and provide a kind of system unit, top of avoiding to wear away, cause the commutation of fastening commutation element to be difficult for, and then make the driving bolt screw or unscrew the reversible ratcheting tool that operation is difficult for problem.The purpose of this utility model and to solve its technical problem be to adopt following technical scheme to realize.According to a kind of reversible ratcheting tool of the utility model that the utility model proposes, be to comprise: a holding rod, this holding rod the place ahead expand establishes a head, and this head is established a tank, and the single-revolution space is established at this tank rear, and the rear left and right sides of this rotary space is respectively established a stopper slot; One ratchet is to be hubbed at this tank, this ratchet peripheral annular distribution number ratchet, and this ratchet one end face is convexly equipped with a button post; One commutation element, be be placed in this rotary space rotatable and be subjected to this two stopper slot to limit its angle of revolution, left and right sides, respectively establish the numeral system tooth about this commutation element the place ahead, this system tooth is and the ratchet engagement of this ratchet that two adjacent recesses of arc are established at this commutation element rear; One top system unit is axially to be embedded in this head, but its front end elastic telescopic and push up the recess that is formed on this commutation element; And a capping, envelope is established this head one side, and a spacing hole is established in this capping the place ahead, and this spacing hole is to pass for this button post.By this, drive about this commutation element and put, make the ratchet engagement of its place ahead one side system tooth and this ratchet, and the recess of this commutation element can be subjected to the elastic top system of this top system unit, but make this ratchet turn round post unidirectional drive one bolt or nut screws or unscrews, be reversed idle running.The purpose of this utility model and solve its technical problem and can also be further achieved by the following technical measures.

Aforesaid reversible ratcheting tool, an end face of wherein said commutation element are established a commentaries on classics and are turned round.

Aforesaid reversible ratcheting tool, an open-work is established at wherein said capping rear, and this open-work is to turn round for this commentaries on classics to pass.

Aforesaid reversible ratcheting tool, a C type clasp is established in the wherein said capping outside, and this tank peripheral ring is established a line of rabbet joint, this C type clasp periphery is to be snapped in this line of rabbet joint.

Aforesaid reversible ratcheting tool, wherein said top system unit is to comprise: but the body of an axial stretching and be positioned at this body front end top product spherical in shape.

Aforesaid reversible ratcheting tool, wherein said body are spring, and this top product is a steel ball, this head rear axis is to establishing a shrinkage pool, the front openings of this shrinkage pool communicates with this rotary space, and supplies to be installed with this body and this top product, and makes this top product front end protrude ejection in this recess.

Aforesaid reversible ratcheting tool, wherein said button post is a square cylinder.

The utility model compared with prior art has tangible advantage and beneficial effect.By technique scheme, the utility model reversible ratcheting tool has following advantage and beneficial effect at least: because top system of the present utility model unit, be to be embedded in this head to adopt fixed form and not swing, this ratchet commutation application of force operation, be to put about this commutation element of switching, and make this top product be formed on the recess of this commutation element, reach commutation blocking effect to sinciput, so can avoid this top product to be subjected to displacement, and be subjected to abrasion to impel the commutation fastening problem that has some setbacks because of swing.

In sum, the utility model is a kind of reversible ratcheting tool, comprises a holding rod, and head is established in this holding rod the place ahead, and this head is established a tank with the ratchet that is pivoted, and a ratchet peripheral distribution ratchet and an end face are convexly equipped with a button post; One commutation element is positioned at the rotary space at tank rear, respectively establish the numeral system tooth about its place ahead, this commutation element makes the system tooth and the ratchet engagement of a side fastenedly, two recesses are established at this commutation element rear, and be subjected to two stopper slots of this rotary space to limit the angle that deflects, one top system unit comprises the body that is embedded in this head and the top product of a sphere, but the top product elastic telescopic of front end and push up and be formed on recess; Reach a capping ratchet and commutation element are sealed, this commutation element of switching makes the location of replacing that the recess at its rear is subjected to this top product in view of the above, avoids this top product because of beat abrasion and elastic fatigue, controls the problem of having some setbacks and produce commutation.The utility model has obvious improvement technically, and has tangible good effect, really is a new and innovative, progressive, practical new design.

Above-mentioned explanation only is the general introduction of technical solutions of the utility model, for can clearer understanding technological means of the present utility model, and can be implemented according to the content of specification, and for above-mentioned and other purposes, feature and advantage of the present utility model can be become apparent, below especially exemplified by preferred embodiment, and conjunction with figs., be described in detail as follows.

Description of drawings

Fig. 1 is the floor map that has first kind of known ratchet spanner now.

Fig. 2 is the plane action one that has second kind of known ratchet spanner now.

Fig. 3 is the plane action two that has second kind of known ratchet spanner now.

Fig. 4 is the schematic perspective view of the utility model one preferred embodiment.

Fig. 5 is the action schematic diagram one of the utility model one preferred embodiment.

Fig. 6 is the action schematic diagram two of the utility model one preferred embodiment.

The specific embodiment

For further setting forth the utility model is to reach technological means and the effect that predetermined goal of the invention is taked, below in conjunction with accompanying drawing and preferred embodiment, to according to its specific embodiment of reversible ratcheting tool, structure, feature and the effect thereof that the utility model proposes, describe in detail as after.

Relevant aforementioned and other technology contents, characteristics and effect of the present utility model can clearly present in the following detailed description that cooperates with reference to graphic preferred embodiment.Explanation by the specific embodiment, when can being to reach technological means that predetermined purpose takes and effect to get one more deeply and concrete understanding to the utility model, yet appended graphic only provide with reference to the usefulness of explanation, be not to be used for the utility model is limited.

See also Fig. 4, Fig. 5, shown in Figure 6, Fig. 4 is the schematic perspective view of the utility model one preferred embodiment, and Fig. 5 is the action schematic diagram one of the utility model one preferred embodiment, and Fig. 6 is the action schematic diagram two of the utility model one preferred embodiment; A kind of reversible ratcheting tool of the utility model is to change tight or change pine for switching one bolt or nut, comprises a holding rod 10, a ratchet 20, a commutation element 30, system unit 40, a top and a capping 50.

This above-mentioned holding rod 10, be for holding switching, its the place ahead is toward extending out the head 11 of establishing a circle, this head 11 is established a tank 12, and these tank 12 the place aheads are to be circle, and single-revolution space 15 is established at the rear, the left and right sides of this rotary space 15 respectively is arranged with a stopper slot 16 backwards, these tank 12 peripheral rings are established a line of rabbet joint 13, and these head 11 rear axis are to establishing a shrinkage pool 14, and the opening in these shrinkage pool 14 the place aheads is to communicate with this rotary space 15.

Above-mentioned ratchet 20, be hubbed in this tank 12 rotatable, these ratchet 20 peripheral annular distribution number ratchets 21, these ratchet 20 1 end faces are convexly equipped with a button post 22 of square cylinder, this button post 22 is and a bolt or nut fit, screws or unscrew purpose to reach.

Above-mentioned commutation element 30, be block, assembly is in this rotary space 15, and be subjected to this two stopper slot 16 to limit its angle that deflects, respectively establish numeral system tooth 31 about these commutation element 30 the place aheads, these commutation element 30 1 end faces are convexly equipped with a turn-button 32, and two adjacent recesses 33 of arc are established at these commutation element 30 rears.

Above-mentioned top system unit 40, be axially to be embedded in this head 11, but comprise the body 41 (as spring) of an axial stretching and be positioned at body 41 the place aheads top product 42 (as steel ball) spherical in shape, be located in this shrinkage pool 14, this top product 42 be subjected to these body 41 elastic force forward ejection front end is protruded peak at this recess 33, commutation element 30 location are lived.

This capping 50 again, be to seal in the form of sheets to be located at this tank 12, a spacing hole 51 is established in these capping 50 the place aheads, an open-work 52 is established at the rear, and this spacing hole 51 is to supply the button post 22 of this ratchet 20 to pass, and this open-work 52 is to supply the turn-button 32 of this commutation element 30 to pass, the hand switching is provided, a C type clasp 53 is established in these capping 50 outsides, and the periphery of this C type clasp 53 is the lines of rabbet joint 13 that are snapped in this tank 12, and this capping 50 is fixedly arranged on this head 11.

The structure that mat is above-mentioned, the turn-button 32 that sees also this commutation element 30 of Fig. 5 switching is towards lopsidedness, the system tooth 31 in its right forward side can mesh with the ratchet 21 of ratchet 20 peripheries, and the recess 33 in left side, below can be located by the resistance of this top product 42, clockwise switching holding rod 10, this ratchet 20 can be braked, and unidirectional rotation one bolt of energy or nut; Otherwise when this holding rod 10 of counterclockwise switching, it is downward that ratchet 21 reverses of this ratchet 20 can press down the system tooth 31 on commutation element 30 right sides, and this moment, this top product 42 can pressurized and these bodies 41 of pressing, and ratchet 20 can reversely be dallied, can not drive bolt or nut and rotate, reach the unidirectional drive purpose.

And at the bolt or the nut of different directions screw thread, then as Fig. 6 with this commutation element 30 towards the opposite side switching, make ratchet 21 engagements of system tooth 31 with this ratchet 20 in left forward side, make this holding rod 10 of counterclockwise switching, this commutation element 30 can be braked this ratchet 20 rotations, makes button post 22 can drive a bolt or nut rotation; Otherwise during with clockwise this holding rod 10 of switching, the ratchet 21 of this ratchet 20 can press down this commutation element 30 and form idle running, reaches the unidirectional drive purpose.

Advantage of the present utility model is to control ratchet 20 commutations and drives the location person, be to be to control the inclination that deflects of this commutation element 30, make arbitrary recess 33 of its below be subjected to the elastic force ejection of this top product 42 to produce the location, and this top product 42 is to be embedded in the shrinkage pool 14, do not swing about not understanding, therefore can avoid more than 42 beat of this top product to produce wearing and tearing and have looseningly, and prevent this body 41 elastic fatigues and continuous beat, and the problem that causes blocking to have some setbacks.

The above, it only is preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, though the utility model discloses as above with preferred embodiment, yet be not in order to limit the utility model, any those skilled in the art are not in breaking away from the technical solutions of the utility model scope, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be the content that does not break away from technical solutions of the utility model, according to technical spirit of the present utility model to any simple modification that above embodiment did, equivalent variations and modification all still belong in the scope of technical solutions of the utility model.

Claims

1, a kind of reversible ratcheting tool is characterized in that it comprises:

One holding rod (10), this holding rod (10) the place ahead expand establishes a head (11), and this head (11) is established a tank (12), and single-revolution space (15) is established at this tank (12) rear, and the left and right sides at this rotary space (15) rear is respectively established a stopper slot (16);

One ratchet (20) is to be hubbed at this tank (12), this ratchet (20) peripheral annular distribution number ratchet (21), and these ratchet (20) one end faces are convexly equipped with a button post (22);

One commutation element (30), be be placed in this rotary space (15) rotatable and be subjected to this two stopper slot (16) to limit its angle of revolution, left and right sides, this commutation element (30) the place ahead left and right sides is respectively established numeral system tooth (31), this system tooth (31) is and ratchet (21) engagement of this ratchet (20) that adjacent two recesses (33) of arc are established at this commutation element (30) rear;

One top system unit (40) is axially to be embedded in this head (11), but its front end elastic telescopic and push up the recess (33) that is formed on this commutation element (30); And

One capping (50), envelope is established this head (11) one sides, and a spacing hole (51) is established in this capping (50) the place ahead, and this spacing hole (51) is to pass for this button post (22).

2, reversible ratcheting tool according to claim 1, an end face that it is characterized in that wherein said commutation element (30) establish one to be changeed and turns round (32).

3, reversible ratcheting tool according to claim 2 is characterized in that wherein said capping (50) rear establishes an open-work (52), and this open-work (52) is to turn round (32) for this commentaries on classics to pass.

4, reversible ratcheting tool according to claim 1 it is characterized in that establishing a C type clasp (53) outside the wherein said capping (50), and this tank (12) peripheral ring is established a line of rabbet joint (13), and this C type clasp (53) periphery is to be snapped in this line of rabbet joint (13).

5, reversible ratcheting tool according to claim 1 is characterized in that wherein said top system unit (40) is to comprise: but the body of an axial stretching (41) and be positioned at this body (41) front end top product (42) spherical in shape.

6, reversible ratcheting tool according to claim 5, it is characterized in that wherein said body (41) is a spring, this top product (42) is a steel ball, this head (11) rear axis is to establishing a shrinkage pool (14), the front openings of this shrinkage pool (14) communicates with this rotary space (15), and supply to be installed with this body (41) and this top product (42), and make this top product (42) front end protrude ejection in this recess (33).

7, reversible ratcheting tool according to claim 1 is characterized in that wherein said button post (22) is a square cylinder.