CN203779415U - Ratchet wheel driving mechanism used for hand tool - Google Patents
Ratchet wheel driving mechanism used for hand tool Download PDFInfo
- Publication number
- CN203779415U CN203779415U CN201420166287.0U CN201420166287U CN203779415U CN 203779415 U CN203779415 U CN 203779415U CN 201420166287 U CN201420166287 U CN 201420166287U CN 203779415 U CN203779415 U CN 203779415U
- Authority
- CN
- China
- Prior art keywords
- ratchet
- clip
- unit
- driving shaft
- drive mechanism
- 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.)
- Expired - Lifetime
Links
- 229920001971 elastomer Polymers 0.000 claims description 10
- 239000000806 elastomer Substances 0.000 claims description 10
- 230000007306 turnover Effects 0.000 claims description 5
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
Abstract
The utility model discloses a ratchet wheel driving mechanism used for a hand tool. The ratchet wheel driving mechanism comprises a driving assembly, an adjusting ring and a ratchet wheel element, wherein the driving assembly comprises a driving shaft, a positioning unit and a plurality of clamping units; the positioning unit and the clamping units are arranged on the driving shaft; each clamping unit comprises a clamping plate and an elastic body which is clamped between the driving shaft and the clamping plate; the adjusting ring sleeves the driving shaft corresponding to the positioning unit and a part of each clamping unit; the adjusting ring is provided with a plurality of grooves used for the positioning unit to be selectively clamped and positioned and a plurality of containing grooves used for the clamping plates to enter, leave and move; the ratchet wheel element sleeves the driving shaft corresponding to the other part of each clamping unit; the ratchet wheel element is provided with a plurality of ratchets used for being meshed by the clamping plates. Therefore in the process that the ratchet wheel element is driven by the driving shaft to rotate, the ratchet wheel element is precisely positioned on the driving shaft by the positioning unit.
Description
Technical field
The utility model relates to a kind of ratchet drive mechanism, espespecially a kind of ratchet drive mechanism for hand-held tool.
Background technology
Traditional screwdriver is to be installed in a lever with a body of rod to carry out combination, so as to providing as the rotation combination of the lock fixtures such as screw.Under the considering in order to reach ease of use, then there is various ratchet drive mechanism to be developed, to offer the control of screwdriver at driving direction, and then the lock such as rotation screw fixture easily.
But, current this ratchet drive mechanism all utilizes two very thin plates, come to use with the collocation of the gear being formed by most ratchets, these very thin plates only have one edge end face and ratchet to be meshed, therefore it cannot bear larger torsion, also be that user can not apply too large torsion, otherwise these plates are very easily damaged.In the time of plates and ratchet engagement, be separately to limit by positioning piece and an adjustment ring, when applying torsion to carry out in the process of turn, because very easily make adjustment ring produce involution or rotary position sliding under the effect of frictional force, thereby make the coarse situation in location spinning off in the self-align hole of keeper, and cause bottle opener cannot normal operating etc. problem, and urgently overcome solution.
Utility model content
In view of this, the technical problems to be solved in the utility model is to provide a kind of ratchet drive mechanism for hand-held tool, and it produces in process of rotation at drive shaft ratchet component, can make the ratchet component unit that is positioned be positioned at accurately driving shaft.
For solving the problems of the technologies described above, the technical solution of the utility model is achieved in that a kind of ratchet drive mechanism for hand-held tool, comprising:
One driven unit, comprises a driving shaft, locating unit and plural clip unit, and this positioning unit and respectively this clip unit are all installed in this driving shaft, and each this clip unit comprises the elastomer that a clip plate and folder are pulled between this driving shaft and this clip plate;
One adjustment ring, to should positioning unit and respectively a part for this clip unit be socketed in this driving shaft, this adjustment ring is provided with for the plural depression of the selective clip of this positioning unit location and for the each mobile tank of this clip plate turnover; And
One ratchet component, corresponding respectively another part of this clip unit is set in this driving shaft, and this ratchet component is provided with the most ratchets for respectively this clip plate engages.
Further, the rotation orientation of this adjustment ring is identical with the direction of rotation of this this ratchet component of drive shaft.
Further, this driving shaft has a canned paragraph and along the axially extended turn section of this canned paragraph, this turn section is provided with a slot that supplies respectively this clip unit accommodating.
Further, this positioning unit comprises a ball and a Compress Spring, and this turn section is provided with a blind hole, and this ball and this Compress Spring are contained in this blind hole.
Further, this adjustment ring has an outer ring body and is formed on an inner ring body of this outer ring body inner side, is extended with a raised line on the surface of this outer ring body, is provided with plural depression the inner peripheral surface of this inner ring body is spaced apart, and respectively this depression is to embed location for this ball.
Further, this clip plate is a U-shaped, is formed with a groove at this clip plate, and this elastomer is contained in this groove.
Further, this clip plate has protruded out a butt piece, and this clip plate pushes by this elastomeric elasticity, moves so that this butt piece does turnover corresponding to this tank of this adjustment ring.
Further, this ratchet component has a head and the axially extended neck of this head certainly, is provided with a centre bore at this head, and respectively this ratchet annular is laid in this center bore inner wall.
Further, the center of this neck is provided with a regular hexagon jack.
Further, more comprise a bolting element, this bolting element wears this driven unit to be combined with this ratchet component.
The technique effect that the utility model reaches is as follows: the utility model utilizes the rotation orientation of adjustment ring identical with the direction of rotation of drive shaft ratchet component, carrying out in the operating process of turn, can make the ball of positioning unit can from depression, do not taken out of, and then can guarantee the steadiness of location.Simple in structure not only all suitable easy and easy in the processing of element and follow-up assembling, maintenance.
Brief description of the drawings
Fig. 1 is the exploded view of the utility model ratchet drive mechanism.
Fig. 2 is the combination appearance figure of the utility model ratchet drive mechanism.
Fig. 3 is the assembled sectional view of the utility model ratchet drive mechanism.
Fig. 4 is the 4-4 cutaway view of Fig. 3.
Fig. 5 is the 5-5 cutaway view of Fig. 3.
Fig. 6 is the 6-6 cutaway view of Fig. 3.
Fig. 7 is the combination schematic diagram that the utility model is applied to hand-held tool.
Fig. 8 is the use state cutaway view () after adjustment ring of the present utility model is rotated counterclockwise.
Fig. 9 is the use state cutaway view (two) after adjustment ring of the present utility model is rotated counterclockwise.
Figure 10 is the use state cutaway view (three) after adjustment ring of the present utility model is rotated counterclockwise.
Figure 11 is the use state cutaway view () after adjustment ring of the present utility model turns clockwise.
Figure 12 is the use state cutaway view (two) after adjustment ring of the present utility model turns clockwise.
Figure 13 is the use state cutaway view (three) after adjustment ring of the present utility model turns clockwise.
Label declaration is as follows:
10 ... driven unit
11 ... driving shaft
111 ... canned paragraph
112 ... rib
113 ... turn section
114 ... blind hole
115 ... slot
12 ... positioning unit
121 ... ball
122 ... Compress Spring
13 ... clip unit
131 ... clip plate
132 ... groove
133 ... butt piece
134 ... elastomer
20 ... adjustment ring
21 ... outer ring body
211 ... raised line
22 ... inner ring body
221 ... depression
222 ... tank
30 ... ratchet component
31 ... head
311 ... centre bore
312 ... ratchet
32 ... neck
321 ... jack
40 ... bolting element
8 ... lever.
Detailed description of the invention
Relevant detailed description of the present utility model and technology contents, coordinate graphic being described as follows, however appended graphic only provide with reference to and explanation use, be not used in addition limitr of the utility model.
Please refer to shown in Fig. 1 to Fig. 3, the utility model provides a kind of ratchet drive mechanism for hand-held tool, and it mainly comprises a driven unit 10, an adjustment ring 20 and a ratchet component 30.
Driven unit 10 mainly comprises a driving shaft 11, locating unit 12 and plural clip unit 13, driving shaft 11 has a canned paragraph 111 and along the axially extended turn section 113 of canned paragraph 111, canned paragraph 111 is a hollow circuit cylinder, protrude out most longitudinal rib 112 at its outer surface, turn section 113 is a hollow circuit cylinder, its end at contiguous canned paragraph 111 is provided with a blind hole 114, separately be provided with two slots 115 in the turn section 113 of blind hole 114 dorsal parts, this two slot 115 each other parallel interval arranges, it is one rectangular-shaped that the slot 115 of the present embodiment is, but be not shaped as restriction with this kind.
Positioning unit 12 mainly comprises a ball 121 and a Compress Spring 122, and ball 121 and Compress Spring 122 are to be contained in aforementioned blind hole 114, and Compress Spring 122 is to push the outer side shifting of ball 121 towards blind hole 114.
Each clip unit 13 is to be contained in respectively in aforementioned slot 115, clip unit 13 comprises a clip plate 131 and an elastomer 134, clip plate 131 is roughly a U-shaped, position is formed with a groove 132 therebetween, separately protrude out a butt piece 133 on the top of clip plate 131 blind ends, elastomer 134 can be a helical form Compress Spring, and it is to be contained in the groove 132 of clip plate 131, in order to push the outer side shifting of clip plate 131 towards slot 115.
Adjustment ring 20 is a hollow circular ring, it is that the top of corresponding positioning unit 12 and each clip unit 13 is socketed in driving shaft 11, this adjustment ring 20 has an outer ring body 21 and is formed on an inner ring body 22 of outer ring body 21 inner sides, be outward extended with a raised line 211 on the surface of outer ring body 21, be provided with three depressions 221 the inner peripheral surface of inner ring body 22 is spaced apart, separately offer a tank 222 in the region, opposite of each depression 221, wherein the ball 121 of positioning unit 12 is to carry out elasticity by Compress Spring 122 to push, ball 121 is positioned in aforesaid depression 221 for clip optionally, 131 of the clip plates elasticity by elastomer 134 pushes, so that can doing turnover corresponding to aforesaid tank 222, moves butt piece 133.
The bottom of the corresponding each clip of ratchet component 30 unit 13 is set in driving shaft 11 and mutually repeatedly connects with adjustment ring 20, this ratchet component 30 has a head 31 and from the axially extended neck 32 of head 31, be provided with a centre bore 311 in the centre position of head 31, be laid with most ratchets 312 in the internal face annular of centre bore 311, each ratchet 312 is to drive for the bottom engagement of each clip plate 131, neck 32 center is provided with a regular hexagon jack 321, uses for son head (scheming not shown) grafting together.
Please refer to shown in Fig. 4 to Fig. 6, when combination, be first positioning unit 12 and each clip unit 13 to be respectively charged in the blind hole 11 and each slot 115 of turn section 113, inferior by adjustment ring 20 from lower to upper be inserted in turn section 113, and the compressed spring 122 of ball 121 is pushed and in the middle of snapping in depression 221 (as shown in Figure 4).131 of each clip plates are pushed by elastomer 134 and butt piece 133 are installed with jointly in tank 222, and make butt piece 133 elasticity amplexiform the internal face (as shown in Figure 5) at tank 222.Then, the bottom of turn section 113 is inserted in the centre bore 311 of ratchet component 30, pushed and make the bottom of clip plate 131 mutually engage (as shown in Figure 6) with ratchet 312 by elastomer 134 by clip plate 131.Finally get a bolting element 40 and sequentially penetrate after canned paragraph 111 and turn section 113, and be screwed in the screw of ratchet component 30 and in conjunction with (as shown in Figure 3), so to be combined into a ratchet drive mechanism.
In the time that ball 121 is positioned in middle depression 221, no matter turn section 113 is counterclockwise rotated or rotation clockwise, all can engage with the mutual of ratchet 312 by the bottom of clip plate 131, and driving pawl element 30 drives screwdriver head to produce the operation that is rotated counterclockwise or turns clockwise.
Please refer to shown in Fig. 7 to Figure 10, can by ratchet drive mechanism of the present utility model and a lever 8 in conjunction with and form a hand-held tool, the hand-held tool of the present embodiment is a screwdriver, but not taking this kind of kenel as restriction.For the job requirements in response to actual is must unidirectional operation time, first counterclockwise rotate adjustment ring 20, so that the ball 121 of positioning unit 12 is positioned in the depression 221 of left side (as shown in Figure 8), now left side clip plate 131 and the relation of adjustment ring 20 and ratchet component 30 aforementioned the first embodiment that makes peace is greatly close, right side clip plate 131 shifts out from tank 222 because the rotation of adjustment ring 20 makes butt piece 133, forces in clip plate 131 retraction slots 115 (as shown in Figure 9) simultaneously.
In the time that turn section 113 is counterclockwise rotated, can engage (as shown in figure 10) with the mutual of ratchet 312 by the bottom of left side clip plate 131, and driving pawl element 30 drives screwdriver head generation to be rotated counterclockwise operation; Otherwise in the time that turn section 113 is rotated toward the clockwise direction, the bottom of left side clip plate 131 departs from the restriction of ratchet 312 and produces idle running.Because the rotation orientation of aforementioned adjustment ring 20 is identical with the direction of rotation of driving shaft 11 driving pawl elements 30, so can make the ball 121 of positioning unit 12 can from depression 221, do not taken out of, and then can be positioned at accurately driving shaft 11.
Please refer to shown in Figure 11 to Figure 13, rotate in the counterclockwise direction adjustment ring 20, so that the ball 121 of positioning unit 12 is positioned in right side depression 221 (as shown in figure 11), now right side clip plate 131 and the relation of adjustment ring 20 and ratchet component 30 aforementioned the first embodiment that makes peace is greatly close, left side clip plate 131 shifts out from tank 222 because the rotation of adjustment ring 20 makes butt piece 133, forces in clip plate 131 retraction slots 115 (as shown in figure 12) simultaneously.
In the time that turn section 113 is rotated toward the clockwise direction, can engage (as shown in figure 13) with the mutual of ratchet 312 by the bottom of right side clip plate 131, and driving pawl element 30 drives screwdriver head generation to be rotated counterclockwise operation; Otherwise in the time that turn section 113 is counterclockwise rotated, the bottom of right side clip plate 131 departs from the restriction of ratchet 312 and produces idle running.
The above, be only preferred embodiment of the present utility model, is not intended to limit protection domain of the present utility model.
Claims (10)
1. for a ratchet drive mechanism for hand-held tool, it is characterized in that, comprising:
One driven unit, comprises a driving shaft, locating unit and plural clip unit, and this positioning unit and respectively this clip unit are all installed in this driving shaft, and each this clip unit comprises the elastomer that a clip plate and folder are pulled between this driving shaft and this clip plate;
One adjustment ring, to should positioning unit and respectively a part for this clip unit be socketed in this driving shaft, this adjustment ring is provided with for the plural depression of the selective clip of this positioning unit location and for the each mobile tank of this clip plate turnover; And
One ratchet component, corresponding respectively another part of this clip unit is set in this driving shaft, and this ratchet component is provided with the most ratchets for respectively this clip plate engages.
2. the ratchet drive mechanism for hand-held tool as claimed in claim 1, is characterized in that, the rotation orientation of this adjustment ring is identical with the direction of rotation of this this ratchet component of drive shaft.
3. the ratchet drive mechanism for hand-held tool as claimed in claim 2, is characterized in that, this driving shaft has a canned paragraph and along the axially extended turn section of this canned paragraph, this turn section is provided with a slot that supplies respectively this clip unit accommodating.
4. the ratchet drive mechanism for hand-held tool as claimed in claim 3, is characterized in that, this positioning unit comprises a ball and a Compress Spring, and this turn section is provided with a blind hole, and this ball and this Compress Spring are contained in this blind hole.
5. the ratchet drive mechanism for hand-held tool as claimed in claim 4, it is characterized in that, this adjustment ring has an outer ring body and is formed on an inner ring body of this outer ring body inner side, be extended with a raised line on the surface of this outer ring body, be provided with plural depression the inner peripheral surface of this inner ring body is spaced apart, respectively this depression is to embed location for this ball.
6. the ratchet drive mechanism for hand-held tool as claimed in claim 2, is characterized in that, this clip plate is a U-shaped, is formed with a groove at this clip plate, and this elastomer is contained in this groove.
7. the ratchet drive mechanism for hand-held tool as claimed in claim 6, is characterized in that, this clip plate has protruded out a butt piece, and this clip plate pushes by this elastomeric elasticity, moves so that this butt piece does turnover corresponding to this tank of this adjustment ring.
8. the ratchet drive mechanism for hand-held tool as claimed in claim 2, is characterized in that, this ratchet component has a head and the axially extended neck of this head certainly, is provided with a centre bore at this head, and respectively this ratchet annular is laid in this center bore inner wall.
9. the ratchet drive mechanism for hand-held tool as claimed in claim 8, is characterized in that, the center of this neck is provided with a regular hexagon jack.
10. the ratchet drive mechanism for hand-held tool as claimed in claim 2, is characterized in that, more comprises a bolting element, and this bolting element wears this driven unit to be combined with this ratchet component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420166287.0U CN203779415U (en) | 2014-04-08 | 2014-04-08 | Ratchet wheel driving mechanism used for hand tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420166287.0U CN203779415U (en) | 2014-04-08 | 2014-04-08 | Ratchet wheel driving mechanism used for hand tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203779415U true CN203779415U (en) | 2014-08-20 |
Family
ID=51315642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420166287.0U Expired - Lifetime CN203779415U (en) | 2014-04-08 | 2014-04-08 | Ratchet wheel driving mechanism used for hand tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203779415U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110214068A (en) * | 2017-01-25 | 2019-09-06 | 蛇牌股份公司 | The accurate screwdriver of axis |
-
2014
- 2014-04-08 CN CN201420166287.0U patent/CN203779415U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110214068A (en) * | 2017-01-25 | 2019-09-06 | 蛇牌股份公司 | The accurate screwdriver of axis |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140820 |
|
| CX01 | Expiry of patent term |