CN201366686Y

CN201366686Y - Ratchet wheel joint

Info

Publication number: CN201366686Y
Application number: CNU2009200954137U
Authority: CN
Inventors: 黄秉文
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-01-22
Filing date: 2009-01-22
Publication date: 2009-12-23
Anticipated expiration: 2019-01-22

Abstract

A ratchet joint includes a driving member, a control ring and a working member, the extension section of the driving member is provided with a slot, the slot is provided with a tooth block, the tooth block has a guide surface and an arc surface, the two sides of the arc surface are respectively provided with a number of latch teeth, the control ring is sleeved on one end of the extension section of the driving member, the inner ring surface of the control ring is provided with a blind hole for controlling the tooth block to move along the bottom of the slot, and the ratchet coupling section of the working member is sleeved on the extension section of the driving member and is adjacent to one side of the control ring, the inner circumference of the ratchet coupling section is provided with a plurality of ratchets, and the curvature of the arc surface of the tooth block matches the curvature of the inner circumference, so that the latch teeth of the tooth block are controlled to engage with the ratchets of the inner circumference. The utility model can easily achieve the purpose of changing the driving direction, can simplify the manufacturing process and reduce the material cost, and can achieve fast and stable positioning of the box wrench or open-end wrench.

Description

The ratchet joint

Technical field

The utility model relates to a kind of ratchet, relates in particular to big and the ratchet joint that can simple and easy commutation of a kind of torsion.

Background technology

See also Figure 11, shown in the figure first kind of existing ratchet joint, it is that a hexagonal seat 72 of accepting body 71 is placed in the register hole of a double offset ring spanner, and the O type ring 73 of this hexagonal seat 72 is internal faces of this register hole of resilient abutment, and this accepts body 71 is to be positioned this double offset ring spanner.

When user's application of force is rotated this double offset ring spanner, this double offset ring spanner often takes place come off from this hexagonal seat 72, and cause puzzlement in the use.

In addition, it is clockwise convertible or counterclockwise drive spiral shell spare to stir this reversing switch of accepting body 71 lateral margins 74, yet, this reversing switch 74 is to be confined to the place that this accepts body 71 lateral margins, so the user only can control with single direction, and cause operating not convenient, and and this reversing switch 74 more often in use is subjected to false touch, the ratchet joint causes the part that denounces more for this reason.

See also Figure 12 and Figure 13, shown in the figure second kind of existing ratchet joint, it is to change direction by the rotation of all ring changes 81 to drive spiral shell spare, whereby, can improve among aforementioned Figure 11, the limitation single direction is controlled the flaw of this reversing switch 74, wherein, one first pallet 82 and one the 3rd pallet 83 are switched ring 81 limits in a holding tank 84 by this respectively, and one second pallet 85 and one the 4th pallet 86 are to stretch into respectively in the clamping groove 87, whereby, a ratchet 88 is rotated along a direction.When this ratchet 88 is desired rightabouts and is rotated, rotate this switchings ring 81 and make this second pallet 85 and the 4th pallet 86 be encircled 81 limits in this holding tank 84 by this switching respectively, this first pallet 82 and the 3rd pallet 83 stretch into respectively in this clamping groove 87.

From the above, this switching ring 81 has no doubt improved the flaw of false touch, and the user operates this switchings ring 81 and when switching ratchet 88 directions, owing to the structure of each

pallet

82,83,85,86 is perfect inadequately, often cause control to uncertain, have some setbacks so the user often suffers to rotate, and the inferior position of design perplexs for this reason, moreover, consideration based on torsion, pallet quantity must be made has four at least, to meet the torsion demand, and the shortcoming that processing procedure is loaded down with trivial details, material cost is higher of therefore deriving again.

See also Figure 14, it shown in the figure the third existing ratchet joint, it is to be located at this driving section 92 by a knob 91 spiral shells, and improve double offset ring spanner 93 easily from these driving section 92 problems that come off, yet, on using, user's this knob 91 that must get loose earlier, then put double offset ring spanner 93, screw this knob 91 again and location double offset ring spanner 93, this operates and does not have a knob 91 of convenience and becomes for this reason the design need to improve part naturally.

The utility model content

Technical problem underlying to be solved in the utility model is, overcome the above-mentioned defective that prior art exists, and provide a kind of ratchet joint, it can reach the purpose of conversion driving direction easily, and can simplify processing procedure and reduce material cost, reach fast and strong fix double offset ring spanner or open-end wrench.

The technical scheme that its technical problem that solves the utility model adopts is:

A kind of ratchet joint, it is characterized in that: an actuator, have one and drive a section and an extension, this drives section and supplies a hand-held tool in conjunction with driving, this extension radially offers a fluting along it, the both sides of this fluting have a sidewall respectively, respectively this sidewall has a protuberance respectively, and be provided with a tooth piece in this fluting, two ends of this tooth piece have a recess respectively, and the corresponding respectively respectively protuberance of this sidewall of the recess of this tooth piece moves along this fluting bottom for this tooth piece is in check, and this tooth piece end face of this fluting bottom relatively has a guiding face and an arcwall face, and the dual side-edge of this arcwall face has several latches respectively; One control loop, it is an end that is sheathed on contiguous this driving section in extension of this actuator, this control loop has an inner ring surface, this inner ring surface has a blind hole, be provided with this flexible member in this blind hole, one end of this flexible member is butted on the bottom of this blind hole, and the other end is butted on the guiding face of this tooth piece, moves along this fluting bottom to control this tooth piece; One work package, have an active section and a sour jujube coupling section, this active section supplies in conjunction with a working substance, this sour jujube coupling section is sheathed on the extension of this actuator and is in close proximity to this control loop one side, this sour jujube coupling section is to having an annular inner peripheral surface in the extension, this inner peripheral surface is equipped with a plurality of ratchets, and the curvature of the curvature of the arcwall face of this tooth piece and this inner peripheral surface matches, and supplies the ratchet of in check this inner peripheral surface of engagement of latch of this tooth piece.

Aforesaid ratchet joint, the driving Duan Weiyi hexagonal cylinder of actuator wherein, supply in conjunction with hand-held tools such as a double offset ring spanner or open-end wrench, and this driving section has a radial slot away from an end of this extension, this radial slot is provided with positioning piece, this keeper has a body, one location division, one grade is ended a portion and a grip part, this grade portion of ending can convexedly stretch in the outer circumferential side of this driving section, this location division only extends axially at place, portion bottom from body and near shelves, and be located at outside the end of this driving section, and this location division is provided with a grip part, this grip part is to be set in parallel with this body, and the bottom of this keeper is provided with a spring, and this keeper of pushing tow, this grip part is towards the spring compression of this keeper bottom, these shelves end portion and are located in this radial slot, unclamp this grip part, this keeper is subjected to the bottom spring push, and these shelves portion of ending is the outer circumferential side that convexedly stretches in this driving section.

Aforesaid ratchet joint, the driving Duan Weiyi hexagonal cylinder of actuator wherein, and this driving section is articulated with a knob away from an end of this extension, and the outer circumferential side of this knob is a hexagon, and the hexagon outer circumferential side of this knob is corresponding with the hexagonal cylinder that this drives section.

Aforesaid ratchet joint, wherein the driving section of actuator has more a perforation radially, drives the working substance of this active section combination for plugging a pole.

Aforesaid ratchet joint wherein drives section end away from this extension and has a tetragonal trepanning.

Aforesaid ratchet joint, wherein the driving section of actuator is two lugs, and respectively this lug has provided a hole, and is provided with an extension bar between this two lug, and this extension bar is provided with a hole, and respectively the hole of this lug and this extension bar is inserted with a pin, and whereby, this drives section in conjunction with this extension bar.

Aforesaid ratchet joint wherein drives between section and this extension and more is provided with a flange, and this flange is stretched from all epitaxial lateral overgrowths of this actuator, ends a side of hand-held tools such as this double offset ring spanner or open-end wrench for shelves.

Aforesaid ratchet joint, wherein the extension of actuator more is equipped with a groove near the place, end, and this groove is provided with a C type clasp, and the sour jujube coupling section inner peripheral surface of this work package is concaved with an annular groove, this annular groove is the C type clasp against this extension, so that this actuator is positioned this work package.

The beneficial effects of the utility model are that it can reach the purpose of conversion driving direction easily, and can simplify processing procedure and reduce material cost, reaches fast and strong fix double offset ring spanner or open-end wrench.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is the perspective exploded view of the utility model first embodiment

Fig. 2 is the combination section of the utility model first embodiment

Fig. 3 is the profile at A-A position shown in Figure 2, and it is the forward driving schematic diagram of the utility model first embodiment

Fig. 4 is the profile at A-A position shown in Figure 2, and it is the reverse driving schematic diagram of the utility model first embodiment

Fig. 5 is the anti-drop assembly operation chart of the utility model first embodiment

Fig. 6 is the combination section of the utility model second embodiment

Fig. 7 is the side view of the utility model second embodiment

Fig. 8 is the anti-drop assembly operation chart of the utility model second embodiment

Fig. 9 is the perspective exploded view of the utility model the 3rd embodiment

Figure 10 is the combination section of the utility model the 4th embodiment

Figure 11 is the perspective view of first kind of existing ratchet joint

Figure 12 is the combination schematic diagram of second kind of existing ratchet joint

Figure 13 is the profile of second kind of existing ratchet joint

Figure 14 is the combination schematic diagram of the third existing ratchet joint

The specific embodiment

Seeing also Fig. 1 to Figure 10, is the selected example structure of the utility model shown in the figure.

Please consulting Fig. 1 to Fig. 5 earlier, below is first embodiment explanation of the utility model " ratchet joint ", and this ratchet joint comprises an actuator 1, a control loop 2 and a work package 3.

This actuator 1 has one and drives section 11 and one extension 12, this drives section 11 and supplies a hand-held tool in conjunction with driving, this extension 12 radially offers a fluting 121 along it, the both sides of this fluting 121 have a sidewall 122 respectively, each sidewall 122 has a protuberance 123 respectively, and be provided with a tooth piece 13 in this fluting 121, two ends of this tooth piece 13 have a recess 131 respectively, the protuberance 123 of recess 131 respectively corresponding each sidewall 122 of this tooth piece 13, move along these 121 bottoms of slotting for this tooth piece 13 is in check, and the end face of these tooth piece 13 relative these fluting 121 bottoms has a guiding face 132 and an arcwall face 133, the dual side-edge of this arcwall face 133 has several latches 134 respectively, and this guiding face 132 also is a cambered surface.

In first embodiment, the driving section 11 of this actuator 1 is a hexagonal cylinder, this drives section 11 can be in conjunction with hand-held tools such as a double offset ring spanner 4 or open-end wrench, and these driving section 11 ends away from this extension 12 have a radial slot 111, this radial slot 111 is provided with positioning piece 14, this keeper 14 has a body 141, one location division 142; File ends a portion 143 and a grip part 144, this grade ends the outer circumferential side that portion 143 can convexedly stretch in this driving section 11, this location division 142 is ended place, portion 143 bottoms from body 141 and Jie Jin File and is extended axially, and be located at outside the end of this driving section 11, and this location division 142 is provided with a grip part 144, this grip part 144 is set in parallel with this body 141, and the bottom of this keeper 14 is provided with a spring 145, and body 141 bottoms of this keeper 14 of pushing tow, this grip part 144 is towards spring 145 compressions of these keeper 14 bottoms, these shelves end portion 143 and are located in this radial slot 111, unclamp this grip part 144, this keeper 14 is subjected to bottom spring 145 pushing tows, and make this grade end the outer circumferential side that portion 143 convexedly stretches in this driving section 11, whereby, this keeper 14 can be located a side of hand-held tools such as this double offset ring spanner 4 or open-end wrench in this driving section 11.

Moreover this

driving section

11 and 12 of this extensions more are provided with a flange 15, and this flange 15 is stretched from this actuator 1 all epitaxial lateral overgrowth, and this flange 15 can end the side of hand-held tools such as this double offset ring spanner 4 or open-end wrench away from this keeper 14 by shelves.

This control loop 2, it is an end that is sheathed on extension 12 contiguous these driving sections 11 of this actuator 1, this control loop 2 has an

inner ring surface

21,21 pairs of this inner ring surfaces should tooth piece 13 guiding face 132 have a blind hole 22, be provided with this flexible member 23 in this blind hole 22, one end of this flexible member 23 is resisted against this guiding face 132, moves along these 121 bottoms of slotting for this tooth piece 13 of control.

This work package 3 has an active section 31 and a sour jujube coupling section 32, this active section 31 supplies in conjunction with a working substance, this working substance is instruments such as sleeve, this sour jujube coupling section 32 is sheathed on the extension 12 of this actuator 1 and is in close proximity to a side of this

control loop

2,32 pairs of this sour jujube coupling sections should have an annular inner peripheral surface 321 in extension 12, this inner peripheral surface 321 is equipped with a plurality of ratchets 322, and the curvature of the curvature of the arcwall face 133 of this tooth piece 13 and this inner peripheral surface 321 is harmonious, for the ratchet 322 of latch 134 these inner peripheral surfaces 321 of in check engagement of this tooth piece 13.

Moreover, the extension 12 of this actuator 1 more is equipped with a groove 124 near the place, end, this groove 124 is provided with a C type clasp 16, and sour jujube coupling section 32 inner peripheral surfaces 321 of this work package 3 are concaved with an annular groove 323, this annular groove 323 makes this actuator 1 be positioned this work package 3 against the C type clasp 16 of this extension 12.

In addition, this driving section 11 has more a perforation 112 radially, can drive the working substance of these active section 31 combinations for plugging a pole.

In the use, see also Fig. 3 and cooperate Fig. 1, this control loop 2 relatively this work package 3 sour jujube coupling section 32 and in forward a position and a reverse position, when this control loop 2 of rotation during in position forward, but the guiding face 132 of flexible member 23 1 these tooth pieces 13 of end pushing tow in this blind hole 22, this tooth piece 13 is moved along these 121 bottoms of slotting, latch 134 limits that make these tooth piece 13 1 sides are in this fluting 121, and can't touch the ratchet 322 of this sour jujube coupling section 32, and the latch 134 of these tooth piece 13 opposite sides is the sour jujube coupling sections 32 that convexedly stretch in this work package 3, whereby, this latch 134 is and these ratchet 322 engagements, make the ratchet 322 of this sour jujube coupling section 32 can only be, and the function of unidirectional drive is arranged along forward rotation.

See also Fig. 4 and cooperate Fig. 1, when this control loop 2 during in reverse position, but guiding face 132 opposite sides of flexible member 23 1 these tooth pieces 13 of end pushing tow in this blind hole 22, this tooth piece 13 is moved along these 121 bottoms of slotting, latch 134 limits that make these tooth piece 13 1 sides are in this fluting 121, and can't touch the ratchet 322 of this sour jujube coupling section 32, and the latch 134 of these tooth piece 13 opposite sides is the sour jujube coupling sections 32 that convexedly stretch in this work package 3, whereby, this latch 134 and these ratchet 322 engagements, make the ratchet 322 of this sour jujube coupling section 32 can only be, and the function of another unidirectional drive is arranged along counter-rotating.

See also Fig. 5 and cooperate Fig. 1, with spring 145 compressions of the grip part 144 of this keeper 14 towards these keeper 14 bottoms, these shelves end portion 143 and are located in this radial slot 111, and the register hole 41 of double offset ring spanner 4 is sheathed on the driving section 11 of this actuator 1, and a side of this double offset ring spanner 4 is that shelves terminate in this flange 15, unclamp this grip part 144, end the outer circumferential side that portion 143 convexedly stretches in this driving section 11 for this keeper 14 De File, and locate this double offset ring spanner 4 away from a side of this flange 15 in this driving section 11, whereby, but the working substance of these these active section 31 combinations of double offset ring spanner 4 unidirectional drive.

Certainly, still there are many examples in the utility model, therebetween the only variation of details.Please continue to consult Fig. 6 to Fig. 8 and cooperate Fig. 1, it is second embodiment of the present utility model, wherein, be different from the keeper 14 that the first embodiment part is this driving section 11, in second embodiment, these driving section 11 ends away from this extension 12 are to connect to establish keeper 14 designs of knob 17 to substitute first embodiment, in second embodiment, the outer circumferential side of this knob 17 is a hexagon, and this hexagon is corresponding mutually with the hexagonal cylinder design of this driving section 11.

In the use of second embodiment, these knob 17 rotations are driven the hexagon outer circumferential side equidirectional of section 11 with this, and the register hole 41 of double offset ring spanner 4 is sheathed on the driving section 11 of this actuator 1, so that being shelves, a side of this double offset ring spanner 4 terminates in this flange 15, this knob 17 rotates and drives the hexagon outer circumferential side different directions of section 11 with this, the angle of these knob 17 hexagon outer circumferential sides, can end the side of this double offset ring spanner 4 by shelves away from this flange 15, whereby, this double offset ring spanner 4 can be positioned this driving section 11, other details of operation sees also the explanation of aforementioned first embodiment, whereby, can reach the identical effect with aforementioned first embodiment.

See also Fig. 9 and cooperate Fig. 1, it is the 3rd embodiment of the present utility model, wherein, be different from driving section 11 that the first embodiment part is this actuator 1 and have a tetragonal trepanning 113 away from an end of this extension 12, this trepanning 113 is can be in conjunction with four jiaos of a F type spanner 5 hand-held tools such as grade pullover 51, and drives the working substance of these active section 31 combinations, and other details of operation sees also the explanation of aforementioned first embodiment, whereby, also can reach identical effect with aforementioned first embodiment.

See also Figure 10 and cooperate Fig. 1, it is the 4th embodiment of the present utility model, wherein, be different from the driving section 11 that the first embodiment part is this actuator 1, in the 4th embodiment, the driving section 11 of this actuator 1 is that two lugs 18 are to substitute the hexagonal cylinder design of first embodiment, in the present embodiment, each lug 18 has provided a hole 181, and 18 of this two lugs are provided with an extension bar 6, this extension bar 6 is provided with a hole, and the hole 181 of each lug 18 and the hole of this extension bar 6 are inserted with a pin, whereby, this driving section 11 can drive the working substance of these active section 31 combinations in conjunction with this extension bar 6, other details of operation sees also the explanation of aforementioned first embodiment, whereby, can reach the identical effect with aforementioned first embodiment.

In sum, after " ratchet joint " of the present utility model implemented, conversion driving direction by the rotation of this control loop 2 and quite expediently, and flexible member 23 1 ends within this control loop 2 are designs that the guiding face 132 with this tooth piece 13 leans, but this control loop 2 of smooth operation, and this control loop 2 controls swimmingly that this tooth piece 13 moves along the bottom of this fluting 121 and function with unidirectional drive, in addition, the utility model can be under the principle of big torsion, simplify the processing procedure of prior art four pallets and have the advantage that reduces material cost, increase productivity effect, moreover, be arranged at the driving section 11 of this actuator 1 by this keeper 14 or this knob 17, can be fast and hand-held tools such as strong fix double offset ring spanner 4 or open-end wrench whereby, can improve the convenience in the use, and promote user's operating efficiency, and then increase the market competitiveness of the present utility model.

Claims

1. A ratchet joint, characterized in that:

A driving part has a driving section and an extension section, the driving section is used for combined driving of a hand tool, the extension section is provided with a slot along its radial direction, the two sides of the slot have side walls respectively, and each side wall Each has a convex part, and a tooth block is arranged in the slot, and the two ends of the tooth block respectively have a concave part, and the concave parts of the tooth block correspond to the convex parts of the side walls respectively, for the tooth block to be controlled. Move along the bottom of the slot, and the end surface of the tooth block opposite to the bottom of the slot has a guide surface and an arc surface, and the two sides of the arc surface have several locking teeth;

A control ring is sheathed on the extension section of the drive member adjacent to one end of the drive section, the control ring has an inner ring surface, the inner ring surface has a blind hole, the elastic element is arranged in the blind hole, the One end of the elastic element abuts against the bottom of the blind hole, and the other end abuts against the guide surface of the tooth block, so as to control the movement of the tooth block along the bottom of the slot;

A working piece has a working section and a ratchet coupling section, the working section is used to combine with a working object, the ratchet coupling section is sleeved on the extension section of the driving member and is adjacent to one side of the control ring, and the ratchet coupling section is opposite to the control ring. The extension section should have an annular inner peripheral surface, and the inner peripheral surface is provided with a plurality of ratchet teeth, and the curvature of the arc surface of the tooth block is consistent with the curvature of the inner peripheral surface, so that the teeth of the tooth block can be supported. Controlled engagement of the ratchet teeth on the inner peripheral surface.

2. The ratchet joint according to claim 1, characterized in that: the driving section of the driving member is a hexagonal column for combining with a Torx wrench or an open-ended wrench tool, and the driving section is far away from the extension section. One end has a radial groove, the radial groove is provided with a positioning piece, the positioning piece has a body, a positioning portion, a stop portion and a holding portion, the stop portion can protrude from the outer periphery of the driving section side, the positioning part axially extends from the body and close to the bottom of the stop part, and is arranged outside the end of the driving section, and the positioning part is provided with a gripping part, which is arranged parallel to the body , and the bottom of the positioning part is provided with a spring, and the positioning part is pushed, the holding part is compressed toward the spring at the bottom of the positioning part, the stopping part is arranged in the radial groove, and the holding part is released, The locating member is pushed by the bottom spring, and the stopping part protrudes from the outer peripheral side of the driving section.

3. The ratchet joint according to claim 1, characterized in that: the driving section of the driving member is a hexagonal column, and the end of the driving section away from the extension section is pivotally connected with a rotary knob, the rotary knob The outer peripheral side is a hexagon, and the hexagonal outer peripheral side of the rotary knob corresponds to the hexagonal cylinder of the driving section.

4 . The ratchet joint according to claim 1 , wherein the driving section of the driving member further has a radial through hole for inserting a round rod to drive the working object combined with the working section.

5 . The ratchet joint according to claim 1 , wherein an end of the driving section away from the extension section has a quadrangular socket. 6 .

6. The ratchet joint according to claim 1, characterized in that: the driving section of the driving member is two lugs, each of which is provided with a hole, and a connecting rod is arranged between the two lugs, and the connecting rod The rod is provided with a hole, and each of the lug and the hole of the connecting rod is inserted with a pin, whereby the driving section is combined with the connecting rod.

7. The ratchet joint according to claim 1, characterized in that: a flange is further provided between the driving section and the extension section, and the flange extends outward from the peripheral side of the driving part to stop the ring wrench or the side of the open end wrench tool.

8. The ratchet joint according to claim 1, characterized in that: the extended section of the driving part is provided with a groove near the end, and the groove is provided with a C-shaped buckle, and the ratchet of the working part An annular groove is recessed on the inner peripheral surface of the coupling section, and the annular groove is against the C-shaped clasp of the extension section, so that the driving element is positioned on the working element.