CN201361837Y - Shift claw ratchet mechanism - Google Patents
Shift claw ratchet mechanism Download PDFInfo
- Publication number
- CN201361837Y CN201361837Y CNU200920037921XU CN200920037921U CN201361837Y CN 201361837 Y CN201361837 Y CN 201361837Y CN U200920037921X U CNU200920037921X U CN U200920037921XU CN 200920037921 U CN200920037921 U CN 200920037921U CN 201361837 Y CN201361837 Y CN 201361837Y
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- China
- Prior art keywords
- gear
- deep
- moving jaws
- chip breaker
- circular arc
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- Expired - Fee Related
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Abstract
The utility model discloses a shift claw ratchet mechanism, aims to provide a two-way ratchet mechanism without a forward-inverse reversal knob, and adopts the technical scheme that an athletics track-shaped long hole is formed at one end of a handle; an arc-shaped groove is formed at one end of the long hole near the circular arc hole wall of the handle; a shift claw is arranged in the arc-shaped groove; the radius of the outer circular arc of the shift claw is the same as that of the inner wall circular arc of arc-shaped groove; internal teeth with the number being one to thirty are formed on the inner circular arc surface of the shift claw; the shift claw can slide in the arc-shaped groove tangentially; a step is arranged on one end surface of the shift claw; a spring plate is arranged on the step so as to block the radial movement of the shift claw and increase the friction force of the shift claw which slide in the arc-shaped groove tangentially; a gear which can perform the radial and reciprocating motion is arranged in the long hole; and teeth of the gear and the internal teeth on the shift teeth can mesh with each other to rotate forwards and backwards at the same time and be separated from each other to rotate separately. When the gear and the internal teeth on the shift claw mesh with each other, the gear, the internal teeth, the outer circular arc of the shift claw, the inner wall circular arc of the arc-shaped groove, and circular arc hole walls on the two sides of the arc-shaped groove share a same circle center.
Description
Technical field
The utility model relates to a kind of intermittent motion mechanism, particularly a kind of ratchet mechanism with movable claw.
Background technology
Ratchet mechanism is widely used in industry.Along with scientific and technological progress, the modern industrial and agricultural development of the difficult adaptation of existing ratchet mechanism.As the application of ratchet mechanism on spanner, though improved the operating efficiency of loading and unloading screws.But, exist little, the easy generation of moment to jump tooth even collapse tooth, two-way ratchet need be dialled defectives such as commutation button.As for, ratchet can make ratchet and handle circle round simultaneously to suppressing of ratchet, and ratchet spanner can't be worked.Can thus, break away from the defective that ratchet spanner exists, the novel ratchet mechanism that develops a kind of high-performance, high pulling torque be puzzlement various countries mechanical investigations personnel's a difficult problem.Many weeks, the scientific research project difficulty that mechanism is simple more, part is few more is also just big more.And now ratchet mechanism is through over 100 years improvement, and part can not lack substantially again.Therefore, explore new research direction to ratchet mechanism and be provided with obstacle.The patent of applying for ratchet mechanism in recent years is numerous.Chinese patent: a kind of ratchet mechanism, the patent No. 02228083.9, this application case discloses, and alternate position spike is puted forth effort in the work of many ratchets, makes swing angle little.Its principle is the same with old-fashioned ratchet mechanism, still has defectives such as ratchet is little, ratchet is thin, pivot pin is weak, single direction ratchet.
Summary of the invention
The utility model has overcome the defective that exists in the prior art, has broken through the basic theories of ratchet mechanism over more than 100 year.Proposed a kind of high-performance, do not had the commutation button along reverse ratchet; High moment of torsion, part are few; Can be widely used in the ratchet mechanism with movable claw on machinery and the ratchet spanner.Ratchet mechanism is brought up to a brand-new stage.
Technical solutions of the utility model are: comprise shell fragment, handle, nut on the gear is pulled hole or tenon and mechanical workpieces, it is characterized in that, end at handle is provided with track and field runway shape slotted hole, circular arc hole wall place at the close handle of slotted hole one end is provided with a deep-slotted chip breaker, be provided with a moving jaws in the deep-slotted chip breaker, the external arc of moving jaws is identical with deep-slotted chip breaker inwall arc radius, the inner arc surface of moving jaws is provided with one to 30 internal tooth, moving jaws can tangentially slide in deep-slotted chip breaker, end face of moving jaws is provided with step, the step place is provided with and increases moving jaws tangential frictional resistance that slides in deep-slotted chip breaker, block the shell fragment that moving jaws moves radially, be provided with the gear that can radially move back and forth in slotted hole, one to 30 internal tooth can be meshing with each other suitable jointly simultaneously on the tooth of gear and the moving jaws, de-rotation is rotated with separating alone.When internal tooth meshed on gear and the moving jaws, the round center of the circular arc hole wall of gear, internal tooth, moving jaws external arc, deep-slotted chip breaker inwall circular arc, deep-slotted chip breaker both sides was same round center.
Described deep-slotted chip breaker is that symmetry is established deep-slotted chip breaker in the middle of track and field runway shape slotted hole circular arc hole wall.One end inwall place of described slotted hole is provided with blocks the axially movable hole of gear step, the inwall place, other end aperture of slotted hole is provided with an annular inner card cage, be provided with in the inner card cage the circlip of gear retaining between hole step and inner card cage, open the installation opening of using when circlip is installed between inner card cage and the aperture end face.Described inwall place, aperture, two ends at slotted hole is provided with an annular inner card cage respectively, is provided with in the inner card cage the circlip of gear retaining between two inner card cages, opens the installation opening of using when circlip is installed between each inner card cage and the aperture end face.Describedly be respectively equipped with annular exterior bayonet slot at gear two ends outer wall.Be provided with in each exterior bayonet slot the circlip of gear retaining in slotted hole.Described circlip is inc annular steel disc.Two end faces of described moving jaws are provided with step, the step place be provided with increase moving jaws in deep-slotted chip breaker the tangential frictional resistance that slides, block the shell fragment that moving jaws moves radially.Two times of the circular arc hole wall radius of described deep-slotted chip breaker both sides are equal to or greater than the outside diameter of gear.
The utility model compared with prior art advantage is: do not have along contrary commutation button, also need not turn-over, can rotate with suitable, the reverse ratchet of hope, and the many moments of engaging tooth are big simultaneously; Mechanism is simple, part is few, easy manufacturing; Gear does not have to suppress and is difficult for circling round simultaneously with handle.
Description of drawings
The application principle schematic diagram on plant equipment and ratchet spanner of ratchet mechanism with movable claw shown in Fig. 1,2.
The application principle schematic diagram on the hub double offset ring spanner with ratchet of ratchet mechanism with movable claw shown in Fig. 3,4.
The application principle schematic diagram on double offset ring spanner with ratchet of ratchet mechanism with movable claw shown in Fig. 5,6.
Among the figure: 1 circlip, 2 nuts are pulled hole or tenon and mechanical workpieces, 3 gears, 4 hole steps, 5 slotted holes, 6 circular arc hole walls, 7 deep-slotted chip breakers, 8 inwall circular arcs, 9 internal tooths, 10 moving jaws, 11 external arc, 12 shell fragments, 13 steps, 14 installation openings, 15 handles, 16 inner card cages, 17 exterior bayonet slots.
The specific embodiment
Below in conjunction with the accompanying drawing and the specific embodiment the utility model is described in further detail:
Embodiment 1:
Fig. 1, shown in 2, on the spanner that handle 15 1 end thickness equate, be provided with a track and field runway shape slotted hole 5, in the middle of the circular arc hole wall 6 at slotted hole armrest handle 15 places, be arranged with a deep-slotted chip breaker 7, be provided with the moving jaws 10 that can tangentially slide in the deep-slotted chip breaker, moving jaws external arc 11 is identical with deep-slotted chip breaker inwall circular arc 8 radiuses, the inwall arc surface of moving jaws 10 is provided with one to 30 internal tooth 9, moving jaws 10 1 or biend are provided with step 13, and the step place is provided with and increases moving jaws 10 tangential frictional resistance that slides in deep-slotted chip breaker 7, block the shell fragment 12 that moving jaws 10 moves radially.Be provided with the gear 3 that can radially move back and forth in the slotted hole 5, can be meshing with each other simultaneously suitable jointly, de-rotation of one to 30 internal tooth 9 is rotated with separating alone on gear 3 and the moving jaws 10, be provided with nut in the gear 3 and pull hole or tenon and mechanical workpieces 2, be provided with an annular inner card cage 16 respectively at the inwall place, aperture, two ends of slotted hole 5, be provided with in the inner card cage the circlip 1 of gear 3 retainings between two inner card cages 16, between inner card cage 16 and the aperture end face, open the installation opening of using when circlip 1 is installed 14.Two times of circular arc hole wall 6 radiuses of deep-slotted chip breaker 7 both sides are equal to or greater than gear 3 external diameters.When internal tooth 9 meshed on gear 3 and the moving jaws, the round center of the circular arc hole wall 6 of gear 3, internal tooth 9, moving jaws external arc 11, deep-slotted chip breaker inwall circular arc 8, deep-slotted chip breaker both sides was same round center.
Embodiment 2:
Shown in Fig. 3,4, spanner place at handle 15 1 end hubs, be provided with a track and field runway shape slotted hole 5, in the middle of the circular arc hole wall 6 at slotted hole armrest handle 15 places, be arranged with a deep-slotted chip breaker 7, be provided with the moving jaws 10 that can tangentially slide in the deep-slotted chip breaker, moving jaws external arc 11 is identical with deep-slotted chip breaker inwall circular arc 8 radiuses, the inwall arc surface of moving jaws 10 is provided with one to 30 internal tooth 9, moving jaws 10 1 or biend are provided with step 13, and the step place is provided with the frictional resistance that increases moving jaws 10 tangential slip deep-slotted chip breaker 7 in, blocks the shell fragment 12 that moving jaws 10 moves radially.Be provided with the gear 3 that can radially move back and forth in the slotted hole 5, can be meshing with each other simultaneously suitable jointly, de-rotation of one to 30 internal tooth 9 is rotated with separating alone on gear 3 and the moving jaws 10, be provided with nut in the gear 3 and pull hole 2, one end of slotted hole 5 is provided with and blocks gear 3 axially movable hole steps 4, the inwall place, other end aperture of slotted hole 5 is provided with an annular inner card cage 16, inner card cage is provided with the circlip 1 of gear 3 retainings between hole step 4 and inner card cage 16 for 16 li, between inner card cage 16 and the aperture end face, open the installation opening of using when circlip 1 is installed 14.Two times of circular arc hole wall 6 radiuses of deep-slotted chip breaker 7 both sides are equal to or greater than gear 3 external diameters.When internal tooth 9 meshed on gear 3 and the moving jaws, the round center of the circular arc hole wall 6 of gear 3, internal tooth 9, moving jaws external arc 11, deep-slotted chip breaker inwall circular arc 8, deep-slotted chip breaker both sides was same round center.
Embodiment 3:
Fig. 5, shown in 6, on the spanner plane that handle 15 1 end thickness equate, be provided with a logical track and field runway shape slotted hole 5, in the middle of the circular arc hole wall 6 at slotted hole armrest handle 15 places, be arranged with a deep-slotted chip breaker 7, be provided with the moving jaws 10 that can tangentially slide in the deep-slotted chip breaker, moving jaws external arc 11 is identical with deep-slotted chip breaker inwall circular arc 8 radiuses, the inwall arc surface of moving jaws 10 is provided with one to 30 internal tooth 9, moving jaws 10 1 or biend are provided with step 13, and the step place is provided with and increases moving jaws 10 tangential frictional resistance that slides in deep-slotted chip breaker 7, block the shell fragment 12 that moving jaws 10 moves radially.Be provided with the gear 3 that can radially move back and forth in the slotted hole 5, can be meshing with each other simultaneously suitable jointly, de-rotation of one to 30 internal tooth 9 is rotated with separating alone on gear 3 and the moving jaws 10, be provided with nut in the gear 3 and pull hole 2, the two ends outer wall of gear 3 is provided with and is provided with in 17, two exterior bayonet slots 17 of annular exterior bayonet slot the circlip 1 of gear 3 retainings in slotted hole 5.Two times of circular arc hole wall 6 radiuses of deep-slotted chip breaker 7 both sides are equal to or greater than gear 3 external diameters.When internal tooth 9 meshed on gear 3 and the moving jaws, the round center of the circular arc hole wall 6 of gear 3, internal tooth 9, moving jaws external arc 11, deep-slotted chip breaker inwall circular arc 8, deep-slotted chip breaker both sides was same round center.
The utility model ratchet mechanism with movable claw is applied in the using method on machinery, the instrument: workpiece that hand gripping handle 15 will rotate or nut etc. join or socket with the workpiece that gear 3 is provided with, radially little pushing away is meshing with each other the internal tooth on the handle 9 and the tooth of gear 3, conrotatory or contrary rotation, moving jaws 10 tangentially moves to deep-slotted chip breaker one end top and stops in deep-slotted chip breaker 7, gear just rotates with handle, revolve stop, radially little handle 15, internal tooth 9 separates with the tooth of gear 3, the handle 15 that circles round is promptly finished a ratchet intermittent movement; Continued operation is: radially littlely push away immediately rotation, revolve stop, radially little retracting revolved.The above operation of the repetition that works on.
Claims (8)
1, a kind of ratchet mechanism with movable claw, comprise shell fragment (12), handle (15), nut on the gear (3) is pulled hole or tenon and mechanical workpieces (2), it is characterized in that, end at handle (15) is provided with track and field runway shape slotted hole (5), locate to be provided with a deep-slotted chip breaker (7) at slotted hole one end near the circular arc hole wall (6) of handle (15), be provided with a moving jaws (10) in the deep-slotted chip breaker, the external arc of moving jaws (11) is identical with deep-slotted chip breaker inwall circular arc (8) radius, the inner arc surface of moving jaws (10) is provided with one to 30 internal tooth (9), moving jaws (10) can tangentially slide in deep-slotted chip breaker (7), (10) end faces of moving jaws are provided with step (13), the step place is provided with and increases moving jaws (10) tangential frictional resistance that slides in deep-slotted chip breaker (7), block the shell fragment (12) that moving jaws moves radially, in slotted hole (5), be provided with the gear (3) that can radially move back and forth, last one to 30 internal tooth of the tooth of gear and moving jaws (10) (9) can be meshing with each other suitable jointly simultaneously, de-rotation is rotated with separating alone, when internal tooth (9) meshes on gear (3) and the moving jaws, gear (3), internal tooth (9), moving jaws external arc (11), deep-slotted chip breaker inwall circular arc (8), the round center of the circular arc hole wall (6) of deep-slotted chip breaker both sides is same round center.
2, ratchet mechanism with movable claw according to claim 1 is characterized in that, described deep-slotted chip breaker (7) is that symmetry is established deep-slotted chip breaker (7) in the middle of track and field runway shape slotted hole circular arc hole wall (6).
3, ratchet mechanism with movable claw according to claim 1, it is characterized in that, one end inwall place of described slotted hole (5) is provided with blocks gear (3) axially movable hole step (4), the inwall place, other end aperture of slotted hole (5) is provided with an annular inner card cage (16), be provided with in the inner card cage the circlip (1) of gear (3) retaining between hole step (4) and inner card cage (16), the installation opening of using when opening installation circlip (1) between inner card cage and the aperture end face (14).
4, ratchet mechanism with movable claw according to claim 1, it is characterized in that, described inwall place, aperture, two ends at slotted hole (5) is provided with an annular inner card cage (16) respectively, be provided with in the inner card cage the circlip (1) of gear (3) retaining between two inner card cages (16), the installation opening of using when opening installation circlip (1) between each inner card cage and the aperture end face (14).
5, ratchet mechanism with movable claw according to claim 1 is characterized in that, describedly is respectively equipped with annular exterior bayonet slot (17) at gear (3) two ends outer wall, is provided with in each exterior bayonet slot the circlip (1) of gear (3) retaining in slotted hole (5).
According to claim 3 or 4 or 5 described ratchet mechanism with movable claw, it is characterized in that 6, described circlip (1) is inc annular steel disc.
7, ratchet mechanism with movable claw according to claim 1, it is characterized in that, (10) two end faces of described moving jaws are provided with step (13), and the step place is provided with the frictional resistance that increases moving jaws (10) tangential slip deep-slotted chip breaker (7) in, blocks the shell fragment (12) that moving jaws moves radially.
8, ratchet mechanism with movable claw according to claim 1 is characterized in that, two times of circular arc hole wall (6) radius of described deep-slotted chip breaker (7) both sides are equal to or greater than gear (3) external diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200920037921XU CN201361837Y (en) | 2009-01-12 | 2009-01-12 | Shift claw ratchet mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200920037921XU CN201361837Y (en) | 2009-01-12 | 2009-01-12 | Shift claw ratchet mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201361837Y true CN201361837Y (en) | 2009-12-16 |
Family
ID=41472498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200920037921XU Expired - Fee Related CN201361837Y (en) | 2009-01-12 | 2009-01-12 | Shift claw ratchet mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201361837Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103758981A (en) * | 2011-12-31 | 2014-04-30 | 许晓华 | Copper gear |
| JP2018176418A (en) * | 2017-04-12 | 2018-11-15 | 華偉工具有限公司 | Ratchet wrench |
-
2009
- 2009-01-12 CN CNU200920037921XU patent/CN201361837Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103758981A (en) * | 2011-12-31 | 2014-04-30 | 许晓华 | Copper gear |
| JP2018176418A (en) * | 2017-04-12 | 2018-11-15 | 華偉工具有限公司 | Ratchet wrench |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Wang Zongfu Document name: Notification of Termination of Patent Right |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091216 Termination date: 20110112 |