CN203796796U - Bidirectional ratchet mechanism - Google Patents
Bidirectional ratchet mechanism Download PDFInfo
- Publication number
- CN203796796U CN203796796U CN201420224225.0U CN201420224225U CN203796796U CN 203796796 U CN203796796 U CN 203796796U CN 201420224225 U CN201420224225 U CN 201420224225U CN 203796796 U CN203796796 U CN 203796796U
- Authority
- CN
- China
- Prior art keywords
- ratchet
- axle sleeve
- shaft
- outer cover
- bidirectional
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
Links
- 230000002457 bidirectional effect Effects 0.000 title claims abstract description 27
- 230000007246 mechanism Effects 0.000 title claims abstract description 27
- 239000012634 fragment Substances 0.000 claims description 11
- 238000000034 method Methods 0.000 description 3
- 230000001360 synchronised effect Effects 0.000 description 3
- 230000003068 static effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Abstract
The utility model relates to a bidirectional ratchet mechanism comprising a shaft sleeve, an upper pawl, a lower pawl, a ratchet shaft with a ratchet, a reversing slider and an outer cover. Slots are formed in the shaft sleeve, and the part, on the ratchet shaft, of the ratchet is arranged in the shaft sleeve. The upper pawl and the lower pawl are arranged in the slots of the shaft sleeve oppositely and located on two sides of the ratchet, and the upper pawl and the lower pawl are meshed with the ratchet in opposite directions. The reversing slider is slidably arranged between the upper pawl and the lower pawl and butted against the upper pawl and the lower pawl. The outer cover sleeves outside the shaft sleeve, and the reversing slider is enabled to be located between the upper pawl and the lower pawl. A reversing groove is formed in the outer cover, and the reversing slider is partially exposed to the outside from the reversing groove. The shaft sleeve is an input shaft of the bidirectional ratchet mechanism, and the ratchet shaft is an output shaft of the bidirectional ratchet mechanism. The bidirectional ratchet mechanism realizes rotation of the input shaft and the output in the same direction or opposite direction, and is convenient and reliable to use and simple in structure.
Description
Technical field
The utility model relate to a kind of for realize input shaft and output shaft in the same way or counter-rotational bidirectional ratchet mechanism.
Background technique
In mechanical device application process, often can run into the mutual conversion in the same way or between rotating backward that need to realize input shaft and output shaft.Existing often comparatively complicated for the apparatus structure of realizing above-mentioned functions, for producing and use has brought inconvenience.
Summary of the invention
The purpose of this utility model be to provide a kind of simple in structure, application realize easily input shaft and output shaft in the same way or counter-rotational bidirectional ratchet mechanism.
For achieving the above object, the technical solution used in the present invention is:
A bidirectional ratchet mechanism, for realize input shaft and output shaft in the same way or rotate backward, comprise axle sleeve, upper ratchet, lower ratchet, there is ratchet shaft, commutation slide block and the outer cover of ratchet;
On described axle sleeve, have fluting, the part that comprises described ratchet on described ratchet shaft is arranged in described axle sleeve; Described upper ratchet and described lower ratchet are relatively arranged in the fluting on described axle sleeve and are positioned at the both sides of described ratchet, and described upper ratchet and described lower ratchet are meshed with described ratchet in the opposite direction; On upper ratchet between upper ratchet described in described commutation slide block is arranged at slidably and described lower ratchet and described in being against and described lower ratchet; Described external cover is located at outside described axle sleeve and is made described commutation slide block between itself and described upper ratchet and described lower ratchet; On described outer cover, offer reversing groove, expose in described reversing groove the part of described commutation slide block;
Described axle sleeve is the input shaft of described bidirectional ratchet mechanism, and described ratchet shaft is the output shaft of described bidirectional ratchet mechanism.
Preferably, described commutation slide block be included in the slidable bar that slides between described outer cover and described axle sleeve, be arranged in two of described slidable bar inner side respectively the corresponding shell fragment that is butted on mutually described upper ratchet and described lower ratchet, be positioned at described slidable bar outside the operating block being exposed by the reversing groove on described outer cover.
Preferably, described upper ratchet or described lower ratchet comprise respectively pawl point near described ratchet, away from the pawl tail of described ratchet and the middle part between described pawl point and described pawl tail, described upper ratchet or described lower ratchet are positioned at its middle part with the part contacting of described axle sleeve, and the shell fragment of described commutation slide block can offset with pawl tail or the middle part of the middle part of described upper ratchet or pawl tail, described lower ratchet respectively.
Preferably, in described axle sleeve, be fixedly installed the backing pin that described ratchet shaft is carried out to axially locating.
Preferably, described backing pin is against on a side wheel face of described ratchet.
Preferably, axial one end of described outer cover is sealed by the flange on described axle sleeve, the other end of described outer cover seals by lock nut, and described ratchet shaft is through described lock nut and by within extending to described outer cover outside described outer cover.
Because technique scheme is used, the utility model compared with prior art has following advantages: bidirectional ratchet mechanism of the present utility model can be by the engagement between the slider-operated upper ratchet of commutation or lower ratchet and ratchet, thereby easily by pawl-and-gearing realize between its input shaft and output shaft in the same way or rotate backward, easy to use and reliable, simple in structure.
Accompanying drawing explanation
Accompanying drawing 1 is looked sectional view for the part master of bidirectional ratchet mechanism of the present utility model.
The partial top view that accompanying drawing 2 is bidirectional ratchet mechanism of the present utility model.
In above accompanying drawing: 1, axle sleeve; 2, upper ratchet; 3, lower ratchet; 4, ratchet; 5, ratchet shaft; 6, commutation slide block; 7, outer cover; 8, lock nut; 9, backing pin.
Embodiment
Below in conjunction with embodiment shown in the drawings, the utility model is further described.
Embodiment one: shown in accompanying drawing 1 and accompanying drawing 2.For realize input shaft and output shaft in the same way or counter-rotational bidirectional ratchet 4 mechanisms, comprise axle sleeve 1, upper ratchet 2, lower ratchet 3, there is ratchet shaft 5, commutation slide block 6 and the outer cover 7 of ratchet 4.Wherein, axle sleeve 1 is the input shaft of bidirectional ratchet 4 mechanisms, and ratchet shaft 5 is the output shaft of bidirectional ratchet 4 mechanisms.
Axle sleeve 1 is sheathed on outside the part that comprises ratchet 4 on ratchet shaft 5, has fluting on it, and upper ratchet 2 and lower ratchet 3 are relatively arranged in the fluting on axle sleeve 1 and are positioned at the both sides of ratchet 4.Upper ratchet 2 or lower ratchet 3 comprise respectively pawl point near ratchet 4, away from pawl tail and the middle part between pawl point and pawl tail of ratchet 4, in the middle part of upper ratchet 2 or lower ratchet 3 are positioned at it with the part contacting of axle sleeve 1.Upper ratchet 2 and lower ratchet 3, being meshed with ratchet 4 by opposite direction, suppose that lower ratchet 3 can clockwise rotate Shi Yuqi engagement at ratchet 4, and upper ratchet 2 can rotate counterclockwise Shi Yuqi engagement at ratchet 4.
Commutation slide block 6 is arranged at slidably between ratchet 2 and lower ratchet 3 and is against on ratchet 2 and lower ratchet 3.Outer cover 7 is sheathed on outside axle sleeve 1 and makes to commutate slide block 6 between itself and upper ratchet 2 and lower ratchet 3, axial one end of outer cover 7 is sealed by the flange on axle sleeve 1, the other end of outer cover 7 seals by lock nut 8, and ratchet shaft 5 is through lock nut 8 and by within extending to outer cover 7 outside outer cover 7.On outer cover 7, offer reversing groove, expose in reversing groove the part of commutation slide block 6.Concrete, commutation slide block 6 is included in the slidable bar that slides between outer cover 7 and axle sleeve 1, be arranged in two of the slidable bar inner side corresponding shell fragment of ratchet 2 and lower ratchet 3, the operating blocks that are positioned at slidable bar outside and exposed by the reversing groove on outer cover 7 of being butted on mutually respectively.The shell fragment of commutation slide block 6 can offset with pawl tail or the middle part of the middle part of upper ratchet 2 or pawl tail, lower ratchet 3 respectively.
In axle sleeve 1, be also fixedly installed the backing pin 9 that ratchet shaft 5 is carried out to axially locating, backing pin 9 is against on a side wheel face of ratchet 4.
The working principle of these bidirectional ratchet 4 mechanisms is:
(1) ratchet shaft 5 dallies counterclockwise with the clockwise synchronous rotation of axle sleeve 1 and axle sleeve 1:
Operating block on operation commutation slide block 6 makes it to the direction that slides to upper ratchet 2, a shell fragment of commutation slide block 6 is pushed down the pawl tail of ratchet 2 and is made the pawl point perk of ratchet 2, and the middle part that the another shell fragment of commutation slide block 6 is pushed down lower ratchet 3 is crushed in the tooth of the ratchet 4 on ratchet shaft 5 the pawl point of lower ratchet 3.When axle sleeve 1 clockwise rotates, drive lower ratchet 3 to drive ratchet shaft 5 to clockwise rotate; And when axle sleeve 1 rotates counterclockwise, because the pawl point of upper ratchet 2 cannot block the tooth of the ratchet 4 on ratchet shaft 5, therefore ratchet shaft 5 is static, axle sleeve 1 dallies counterclockwise.
(2) ratchet shaft 5 dallies clockwise with the counterclockwise synchronous rotation of axle sleeve 1 and axle sleeve 1:
Operating block on operation commutation slide block 6 makes it to the direction that slides to lower ratchet 3, a shell fragment of commutation slide block 6 is pushed down the pawl tail of lower ratchet 3 and is made the pawl point perk of lower ratchet 3, and the middle part that the another shell fragment of commutation slide block 6 is pushed down ratchet 2 is crushed in the tooth of the ratchet 4 on ratchet shaft 5 the pawl point of ratchet 2.When axle sleeve 1 rotates counterclockwise, in driving, ratchet 2 drives ratchet shaft 5 to rotate counterclockwise; And when axle sleeve 1 clockwise rotates, because the pawl point of lower ratchet 3 cannot block the tooth of the ratchet 4 on ratchet shaft 5, therefore ratchet shaft 5 is static, axle sleeve 1 dallies clockwise.
(3) ratchet shaft 5 both rotated, also with axle sleeve 1, synchronously rotated counterclockwise with axle sleeve 1 is synchronous clockwise:
Commutation slide block 6 is pushed into the neutral position of reversing groove, two shell fragments of commutation slide block 6 are pushed down respectively the middle part of ratchet 2 and lower ratchet 3, and the pawl point of ratchet 2 and the pawl point of lower ratchet 3 are all crushed in the tooth of the ratchet 4 on ratchet shaft 5.When axle sleeve 1 clockwise rotates, by lower ratchet 3, drive ratchet shaft 5 to clockwise rotate, when axle sleeve 1 rotates counterclockwise, by upper ratchet 2, drive ratchet shaft 5 to rotate counterclockwise.
Above-described embodiment is only explanation technical conceive of the present utility model and feature, and its object is to allow person skilled in the art can understand content of the present utility model and implement according to this, can not limit protection domain of the present utility model with this.All equivalences of doing according to the utility model Spirit Essence change or modify, within all should being encompassed in protection domain of the present utility model.
Claims (6)
1. a bidirectional ratchet mechanism, for realize input shaft and output shaft in the same way or rotate backward, it is characterized in that: described bidirectional ratchet mechanism comprises axle sleeve, upper ratchet, lower ratchet, has the ratchet shaft of ratchet, commutation slide block and outer cover;
On described axle sleeve, have fluting, the part that comprises described ratchet on described ratchet shaft is arranged in described axle sleeve; Described upper ratchet and described lower ratchet are relatively arranged in the fluting on described axle sleeve and are positioned at the both sides of described ratchet, and described upper ratchet and described lower ratchet are meshed with described ratchet in the opposite direction; On upper ratchet between upper ratchet described in described commutation slide block is arranged at slidably and described lower ratchet and described in being against and described lower ratchet; Described external cover is located at outside described axle sleeve and is made described commutation slide block between itself and described upper ratchet and described lower ratchet; On described outer cover, offer reversing groove, expose in described reversing groove the part of described commutation slide block;
Described axle sleeve is the input shaft of described bidirectional ratchet mechanism, and described ratchet shaft is the output shaft of described bidirectional ratchet mechanism.
2. bidirectional ratchet mechanism according to claim 1, is characterized in that: described commutation slide block is included in the slidable bar that slides between described outer cover and described axle sleeve, be arranged in two of described slidable bar inner side respectively the corresponding shell fragment that is butted on mutually described upper ratchet and described lower ratchet, be positioned at described slidable bar outside the operating block being exposed by the reversing groove on described outer cover.
3. bidirectional ratchet mechanism according to claim 2, it is characterized in that: described upper ratchet or described lower ratchet comprise respectively pawl point near described ratchet, away from the pawl tail of described ratchet and the middle part between described pawl point and described pawl tail, described upper ratchet or described lower ratchet are positioned at its middle part with the part contacting of described axle sleeve, and the shell fragment of described commutation slide block can offset with pawl tail or the middle part of the middle part of described upper ratchet or pawl tail, described lower ratchet respectively.
4. bidirectional ratchet mechanism according to claim 1, is characterized in that: in described axle sleeve, be fixedly installed the backing pin that described ratchet shaft is carried out to axially locating.
5. bidirectional ratchet mechanism according to claim 4, is characterized in that: described backing pin is against on a side wheel face of described ratchet.
6. bidirectional ratchet mechanism according to claim 1, it is characterized in that: axial one end of described outer cover is sealed by the flange on described axle sleeve, the other end of described outer cover seals by lock nut, and described ratchet shaft is through described lock nut and by within extending to described outer cover outside described outer cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420224225.0U CN203796796U (en) | 2014-05-05 | 2014-05-05 | Bidirectional ratchet mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420224225.0U CN203796796U (en) | 2014-05-05 | 2014-05-05 | Bidirectional ratchet mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203796796U true CN203796796U (en) | 2014-08-27 |
Family
ID=51379009
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420224225.0U Withdrawn - After Issue CN203796796U (en) | 2014-05-05 | 2014-05-05 | Bidirectional ratchet mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203796796U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103925312A (en) * | 2014-05-05 | 2014-07-16 | 国家电网公司 | Bothway ratchet mechanism |
-
2014
- 2014-05-05 CN CN201420224225.0U patent/CN203796796U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103925312A (en) * | 2014-05-05 | 2014-07-16 | 国家电网公司 | Bothway ratchet mechanism |
| CN103925312B (en) * | 2014-05-05 | 2016-08-24 | 国家电网公司 | Bidirectional ratchet mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140827 Effective date of abandoning: 20160824 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |