CN2280599Y

CN2280599Y - High-torque-force ratchet driving screwdriver

Info

Publication number: CN2280599Y
Application number: CN 96205344
Authority: CN
Inventors: 李松敏
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-03-20
Filing date: 1996-03-20
Publication date: 1998-05-06
Anticipated expiration: 2006-03-20

Abstract

The utility model relates to a high-torque-force ratchet driving screwdriver. A transmission shaft, the lower section of which is provided with a tooth part is sheathed in a central hole of a casing tube; the sidewall of the casing tube is provided with a left slotted hole and a right slotted hole which are adjacent and parallel and are respectively sheathed in a left brake block and a right brake block; the left brake block and the right brake block are bundled in the left slotted hole and the right slotted hole by elastic fastening rings to cause the corner ends of the left brake block and the right brake block to be clamped with the tooth part of the transmission shaft; the sidewall of the casing tube is additionally provided with an adjusting cap, wherein, the inner part of which is additionally provided with a semicircular brake column; therefore, the left brake edge and the right brake edge of the brake column respectively correspond to the end part of the left brake block and the end part of the right brake block; therefore, when the adjusting cap rotates, the left brake edge and the right brake edge can be controlled to push the left brake block and the right brake block to cause the left brake block and the right brake block to be capable of clamping or disconnecting with the tooth part of the transmission shaft; therefore, the braking direction of transmission is controlled.

Description

High torsion ratchet transmission bottle opener

The utility model relates to a kind of ratchet transmission bottle opener, refers to a kind ofly by the structure of simplifying especially, can obtain the ratchet transmission bottle opener of higher torsion.

For the operation that makes screwdriver more convenient, developed at present the screwdriver of the ratchet stopper of multiple different structure on the market, play the period of the day from 11 p.m. to 1 a.m by the stopper direction of conversion ratchet at rotary screw, can solve rotation and promptly screwdriver must be mentioned the trouble of being inserted in rotation again after a bit of.In order to the structure of conversion ratchet stopper direction, be to control with the push button way of propelling traditionally, the drawing piece that makes push button be pushed into front end body interior front end in season blocks ratchet, and the drawing piece of rear end does not then block ratchet, to reach the function that can just change driving.And when push button is pushed into the rear end, then making the drawing piece of rear end block ratchet, the drawing piece of front end does not then block ratchet, to reach the function that can reverse driving, and when push button is pushed into two ends central, then make two drawing pieces all block ratchet, like this driving that can just do simultaneously, reverse.Yet, because the structure that this kind is traditional, overexert when causing promoting push button easily and push away excessive so that cause inconvenience, and overall structure is also complicated, therefore, the screwdriver structure that a kind of ratchet stopper is arranged in the conventional art in addition, its structure is to be provided with a tooth post in a sidewall is provided with the sleeve pipe of window, be arranged with a positioning block at this window, in being staggered in the locating hole of center line two sides, this locating piece is arranged with brake block, and can in locating hole, move freely, on each brake block, be equipped with chute below, and brake block forms the V-arrangement tip towards inside pipe casing one end, sheathed one is preset with the ring frame that leads to dummy section outside sleeve pipe, on two sides of this logical dummy section are respectively equipped with corresponding to above-mentioned brake block, the short slot of thickness between gliding groove, and fetter this brake block with spring and fall to avoid outer, and the ring frame outside in conjunction with a swivel becket, in the time of can controlling two brake blocks and be positioned at logical dummy section middle by rotating this swivel becket, the V-arrangement tip that makes this two brake block is all to the tooth portion of the tooth post of pulling and fix, and when wherein a brake block moves into the short slot of ring frame one side, the function that then has unidirectional drive, this structure no doubt has excellent design, yet the torsion of its transmission is not enough, therefore, the creator has developed the utility model.

Main purpose of the present utility model is to provide a kind of high torsion ratchet transmission interest, by the structure of more simplifying, the driving torsion of power transmission shaft is improved more.

Content of the present utility model is: a kind of high torsion ratchet transmission bottle opener, it is characterized in that, it includes: a sleeve pipe, it is axially arranged with a medium pore, be provided with adjacent parallel and connect a left slotted eye and a right slotted eye at sidewall to medium pore, be provided with the pin ditch of the left and right slotted eye of a crosscut at sleeve outer wall, be provided with the pin-and-hole that always passes to medium pore at the sleeve pipe sidewall, the medium pore inwall between described left and right slotted eye has extended a projection; One power transmission shaft, be provided with tooth portion at its hypomere, and be provided with a pin ditch corresponding to sleeve pipe pin-and-hole position in this tooth portion, and whereby power transmission shaft is inserted in the medium pore of sleeve pipe, be forced into by steady pin and snap in the circular groove of power transmission shaft again behind the pin-and-hole of sleeve pipe and power transmission shaft is fixed in the medium pore; One left brake block is one can corresponding penetrate the rectangular block of described sleeve pipe left side slotted eye, is provided with a left groove at its lateral surface; One right brake block is one can corresponding penetrate the rectangular block of the right slotted eye of described sleeve pipe, is provided with a right groove at its lateral surface; One snap ring, its clip be at the annular groove of sleeve pipe and the left and right groove of left and right brake block, and described left and right brake block is fixed in the left and right slotted eye, and make this left and right brake block angle end block the tooth portion of described power transmission shaft; One adjusts cap, be provided with one with the corresponding through hole of described power transmission shaft external diameter, extend one at this through hole lower edge and stretch into the stopper post of adjusting cap inside and semicircular in shape, and make the stopper post penetrate described sleeve pipe medium pore, and then the left and right stopper limit that makes this stopper post corresponds respectively to the end of left and right brake block, is provided with internal thread and the diameter flange little than internal thread at the interior lower edge of described adjustment cap; One retainer ring, its outside is provided with and adjusts the corresponding external screw thread of cap internal thread, and encircles in the above and be provided with and adjust the corresponding a plurality of shrinkage pools of cap flange week.

Preferred embodiment of the present utility model is described with reference to the accompanying drawings as follows, so that to other purposes of the present utility model and function more detailed understanding can be arranged.Above-described preferred embodiment of the present utility model is not that the utility model is done any pro forma restriction, and every any modification relevant of the present utility model or change of being done under identical creation spirit all belongs to the technical solutions of the utility model category.

Fig. 1 is the perspective exploded view of each member annexation of the utility model;

Fig. 2 is the section plan of the utility model structure;

Top plan view cutaway view when Fig. 3 is completely fixed for A-A section shown in Figure 2 and tooth post;

Fig. 4 blocks the section plan of ring tooth for the left brake block of ring tooth of right brake block separating tooth post shown in Figure 3;

Fig. 5 blocks the section plan of ring tooth for the right brake block of ring tooth of left brake block separating tooth post shown in Figure 3.

As shown in Figures 1 and 2, the utility model embodiment includes a sleeve pipe 1, a power transmission shaft 2, is adjusted cap 3, a retainer ring 4, one left brake block 14, one a right brake block 15 and a snap ring 16; One end of its middle sleeve 1 is provided with the head 11 of big external diameter, the other end is provided with the afterbody 12 of less external diameter, this afterbody 12 is in conjunction with handle, above-mentioned head 11 be axially arranged with a medium pore 110, the bottom of this medium pore 10 is provided with ball hole 115, and in this ball hole 115, place a ball 18, the outer shroud week of above-mentioned head 11 is provided with a plurality of annular grooves 116, and be provided with adjacent parallel and connect a left slotted eye 112 and a right slotted eye 113 to medium pore 110 at sidewall, on a left side, right slotted eye 112,113 medium pore 110 inwalls extend a projection 19, be provided with the pin-and-hole 114 that always passes to medium pore 110 at sleeve pipe 1 sidewall, be provided with a post hole 111 at the upper end of head 11 appropriate location in addition, in this post hole 111, be inserted in the reference column 17 of a lower end, make this reference column 17 elastic telescopic vertically in conjunction with flexible member 171.The hypomere of above-mentioned power transmission shaft 2 is provided with tooth portion 21, and this tooth portion 21 corresponding to sleeve pipe 1 pin-and-hole 114 positions be provided with one the pin ditch 22, be inserted in the medium pore 110 of sleeve pipe 1 at power transmission shaft 2 after, be forced into the pin ditch 22 that snaps in power transmission shaft 2 behind the pin-and-hole 114 of sleeve pipe 1 again by steady pin 13, and being fixed in the medium pore 110 preventing, power transmission shaft 2 drops out, make the lower end contact ball 18 of power transmission shaft 2 simultaneously, and making power transmission shaft 2 have less frictional force when rotated, the upper end of this power transmission shaft 2 then is provided with one for the sleeve joint hole 23 that cooperates screwdriver heads.Above-mentioned left brake block 14 be one can corresponding threading 1 left slotted eye 112 rectangular block, be provided with a left groove 141 at its lateral surface; And right brake block 15 also be one can corresponding threading 1 right slotted eye 113 rectangular block, then be provided with a right groove 151 at its lateral surface.Above-mentioned snap ring 16 is c-shaped shapes, its thickness can be inserted in a left side, right brake block 14, a left side of 15, right groove 141,151 and the annular groove 116 of sleeve pipe 1, this snap ring 16 is enclosed within an annular groove 116 and a left side, right groove 141,151 o'clock, can be with a left side,

right brake block

14,15 bundles are in above-mentioned left slotted eye 112 and right slotted eye 113, and because of the feasible left side of the resilient force that is subjected to snap ring 16,

right brake block

14,15 angle end is stuck in the tooth portion 21 of power transmission shaft 2 simultaneously, and then make power transmission shaft 2 to rotate and can only carry out a left side, the driving of right is simultaneously by 19 pairs of left sides of this projection,

right brake block

14,15 top pull the effect and can improve its torsion.Above-mentioned adjustment cap 3 is established the through hole 30 of corresponding power transmission shaft 2 external diameters, extend one at these through hole 30 lower edges and stretch into the stopper posts 31 of adjusting cap 3 inside and semicircular in shape, utilize the semicircle of this stopper post 31 can be positioned at the left stopper limit 311 in left side and be positioned at the right stopper limit 312 on right side, and make the medium pore 30 of stopper post 31 threadings 1, and then make corresponding respectively the end, left and right stopper limit 311,312 of stopper post 31 at left and right brake block 14,15.Again, interior lower edge at above-mentioned adjustment cap 3 is provided with internal thread 34, and be provided with the diameter flange 33 little than internal thread 34, be provided with and reference column 17 corresponding positioning hole 32 at the interior upper end appropriate location of adjusting cap 3, make when adjusting cap 3 rotations, this reference column 17 snaps in locating hole 32 and obtains the location when adjustment cap 3 goes to ad-hoc location.Said fixing ring 4 outsides are provided with and adjust cap 3 internal threads 34 corresponding external screw threads 41, and ring the week is provided with the corresponding shrinkage pool 42 of a plurality of and adjustment cap 3 flanges 33 in the above, and appropriate location is provided with a plurality of holes 43 on retainer ring 4, can cooperate specific purpose tool that the external screw thread 41 of retainer ring 4 is locked on the internal thread 34 of adjusting cap 3 by these holes 43, after retainer ring 4 is locked adjustment cap 3, when rotating adjustment cap 3, can produce the sound with cooperating of shrinkage pool 42, know the position of being adjusted to help the operator by flange 33.

As shown in Figure 3, when the driving of desiring to make power transmission shaft 2 make left and right two directions is rotated, turn adjustment cap 3 and make its stopper post 31 be positioned at middle position, thereby left and right stopper limit 311,312 is not all contacted with left and

right brake block

14,15, at this moment, the resilient force of snap ring 16 makes the angle end of left and

right brake block

14,15 be stuck in the tooth portion 21 of power transmission shaft 2 and power transmission shaft 2 is maintained static at left and

right brake block

14,15, and can make power transmission shaft 2 do the driving of left and right two directions this moment.

As shown in Figure 4, do counterclockwise to drive but clockwise direction when not driving when desiring to make power transmission shaft 2, can clockwise rotate adjustment cap 3 and make stopper post 31 produce the clockwise direction deflections, the clip that can make this moment right stopper limit 312 promote right brake block 15 and right brake block 15 is broken away from tooth portion 21, but the angle end of left brake block 14 still vertically blocks tooth portion 21, like this, make power transmission shaft 2 can obtain anticlockwise unidirectional drive, then can't drive during the clockwise direction rotation.

As shown in Figure 5, do that clockwise direction drives but when counterclockwise not driving when desiring to make power transmission shaft 2, can rotate counterclockwise adjustment cap 3 and make stopper post 31 produce deflections counterclockwise, the clip that can make this moment left stopper limit 311 promote left brake block 14 and left brake block 14 is broken away from tooth portion 21, but the angle end of right brake block 15 still vertically blocks tooth portion 21, like this, make power transmission shaft 2 can obtain clockwise unidirectional drive, then can't drive when counterclockwise rotating.Simultaneously, by the vertical configuration angle end of left and

right brake block

14,15, drive torsion thereby improve it greatly.

From the above, novel structure uniqueness of the present utility model, and have very high practical value.

Claims

1, a kind of high torsion ratchet transmission bottle opener is characterized in that it includes:

One sleeve pipe, it is axially arranged with a medium pore, be provided with adjacent parallel and connect a left slotted eye and a right slotted eye at sidewall to medium pore, be provided with the pin ditch of the left and right slotted eye of a crosscut at sleeve outer wall, be provided with the pin-and-hole that always passes to medium pore at the sleeve pipe sidewall, the medium pore inwall between described left and right slotted eye has extended a projection; One power transmission shaft, be provided with tooth portion at its hypomere, and be provided with a pin ditch corresponding to sleeve pipe pin-and-hole position in this tooth portion, and whereby power transmission shaft is inserted in the medium pore of sleeve pipe, be forced into by steady pin and snap in the circular groove of power transmission shaft again behind the pin-and-hole of sleeve pipe and power transmission shaft is fixed in the medium pore; One left brake block is one can corresponding penetrate the rectangular block of described sleeve pipe left side slotted eye, is provided with a left groove at its lateral surface; One right brake block is one can corresponding penetrate the rectangular block of the right slotted eye of described sleeve pipe, is provided with a right groove at its lateral surface; One snap ring, its clip be at the annular groove of sleeve pipe and the left and right groove of left and right brake block, and described left and right brake block is fixed in the left and right slotted eye, and make this left and right brake block angle end block the tooth portion of described power transmission shaft; One adjusts cap, be provided with one with the corresponding through hole of described power transmission shaft external diameter, extend one at this through hole lower edge and stretch into the stopper post of adjusting cap inside and semicircular in shape, and make the stopper post penetrate described sleeve pipe medium pore, and then the left and right stopper limit that makes this stopper post corresponds respectively to the end of left and right brake block, is provided with internal thread and the diameter flange little than internal thread at the interior lower edge of described adjustment cap; One retainer ring, its outside is provided with and adjusts the corresponding external screw thread of cap internal thread, and encircles in the above and be provided with and adjust the corresponding a plurality of shrinkage pools of cap flange week.

2, high torsion ratchet transmission bottle opener according to claim 1, the upper end appropriate location that it is characterized in that described sleeve pipe has a post hole, in this post hole, be provided with one and make this reference column can carry out elastic telescopic, be provided with and this reference column corresponding positioning hole at the interior upper end appropriate location of adjusting cap in addition in conjunction with the reference column of flexible member.

3, high torsion ratchet transmission bottle opener according to claim 1 is characterized in that described retainer ring appropriate location is provided with several holes.