CN201718643U - Bidirectional limited-slip crank structure - Google Patents
Bidirectional limited-slip crank structure Download PDFInfo
- Publication number
- CN201718643U CN201718643U CN2010201871030U CN201020187103U CN201718643U CN 201718643 U CN201718643 U CN 201718643U CN 2010201871030 U CN2010201871030 U CN 2010201871030U CN 201020187103 U CN201020187103 U CN 201020187103U CN 201718643 U CN201718643 U CN 201718643U
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- slip
- way
- bobbin
- crank structure
- crank
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Abstract
The utility model provides a bidirectional limited-slip crank structure, belonging to the technical field of machinery, which solves the problem that the existing crank structure can not be bidirectional limited-slip, so that the crank loosens and even breaks when reversing. The improved bidirectional limited-slip crank structure comprises a shell, a reel, a suspension string fixed on the reel, and an operating crank. The utility model is characterized in that the shell is internally provided with a bidirectional clutch assembly, and the bidirectional clutch assembly is driven by the operating crank, and is matched and locked with the reel. Since the clutch assembly is matched with the reel connected with the suspension string, the bidirectional locking can be realized, and the crank structure can clockwise rotate, can also anticlockwise rotate, and can be bidirectional limited-slip. The bidirectional limited-slip crank structure has simple structure, simple and convenient assembly and convenient use.
Description
Technical field
The utility model belongs to field of mechanical technique, relates to the crank structure of a kind of crank, particularly a kind of two-way on-slip.
Background technology
The crank of existing parasols mostly is greatly along the unidirectional structure of shaking of shaking clockwise, when shaking counterclockwise, it can not accomplish on-slip, if under unwitting situation, crank is shaken counterclockwise, in use, be easy to generate the phenomenon that the loosening even crank structure fracture of crank occurs, thereby cause umbrella cover to fold automatically and get to people under the umbrella.Brought safe hidden danger to the consumer like this.For this reason, people begin one's study and have designed a kind of crank structure of two-way on-slip, as China Patent No.: 200620025760.9 multifunctional safe crank, the feature of this crank is that crank is divided into the rocking bar of being with rocking handle and starting bar two parts of being with bayonet lock, but the rocking bar end is provided with the ratchet and pawl arrangement of strap wrenches head and bidirectional modulation, and rocking bar flexibly connects by driving end and starting bar.During work, prevent the crank reversing by ratchet and pawl arrangement and crank cooperation.But since the structure relative complex of this mechanism, the production cost height, maintenance difficult, and anti-reversing effect is not fine.
Summary of the invention
The purpose of this utility model is to have the problems referred to above at existing technology, has proposed a kind of crank structure that can shake clockwise, can shake and realize two-way on-slip again counterclockwise.
The purpose of this utility model can realize by following technical proposal: a kind of crank structure of two-way on-slip, comprise housing, bobbin, be fixed on umbrella rope and rocking handle on the bobbin, it is characterized in that, described enclosure interior is provided with the two-way clutch assembly, described two-way clutch assembly drives by rocking handle, and matches with bobbin and to realize locking.
In the technical program, adopt the two-way clutch assembly to match, realize bidirectional self-locking, both can clockwise rotate, also can rotate counterclockwise to guarantee this crank structure with the bobbin that is connected with the umbrella rope, and can two-way on-slip.
Comprise the voussoir of strip and the actuator that is connected with rocking handle at the two-way clutch assembly described in the crank structure of above-mentioned a kind of two-way on-slip, described voussoir and actuator are formed eccentric clutch structure.In the technical program, adopt voussoir to cooperate with bobbin, realize two-way on-slip with the eccentric clutch structure that actuator constitutes.
In the crank structure of above-mentioned a kind of two-way on-slip, described voussoir middle part is provided with a circular hole, is provided with a spring in the described circular hole, and described spring one end is inlaid in the circular hole, and the other end and bobbin offset.In the technical program,, make to have a support power between bobbin and voussoir all the time, and make a side of voussoir deflection driving shaft by the elasticity of spring.
In the crank structure of above-mentioned a kind of two-way on-slip, the contacted working face of described bobbin and spring is made as arc surface.In the technical program, because bobbin and the contacted face of spring are made as arc surface, then when voussoir and bobbin position changed, the contacted end of spring and arc surface can be in the enterprising line slip of this arc surface, and promptly voussoir can carry out the rotation of certain angle with respect to bobbin.
In the crank structure of above-mentioned a kind of two-way on-slip, described bobbin comprise the wiring axle, with the follower that the two-way clutch assembly matches, the contacted working face of described follower and spring is made as arc surface.In the technical program, spring matches with the follower of bobbin, the contacted working face of this follower and spring is made as arc surface, when voussoir and follower position change, the contacted end of spring and arc surface can be in the enterprising line slip of this arc surface, and promptly voussoir can carry out the rotation of certain angle with respect to follower.
In the crank structure of above-mentioned a kind of two-way on-slip, described bobbin is provided with lacing hole.In the technical program, the umbrella rope is fixed, so that it twines on bobbin by lacing hole.
In the crank structure of above-mentioned a kind of two-way on-slip, described actuator comprises driving shaft and the drive block that is made as one, and described driving shaft matches with voussoir, and described drive block is provided with the hole that is connected with rocking handle.In the technical program, match and realize driving to the two-way clutch assembly in the hole that is shaped on rocking handle and the actuator.
Compared with prior art, the utility model has been used the principle of two-way voussoir freewheel clutch, by voussoir is simultaneously connected driving shaft, another side connects the bobbin as driven shaft, motionless when housing, driving shaft clockwise or when rotating counterclockwise, bobbin also rotates synchronously, and the time spent of doing that is subjected to moment of face when bobbin, clockwise and all can not rotate counterclockwise.This crank structure is simple, assembling is easy, easy to use.
Description of drawings
Fig. 1 is a package assembly schematic diagram of the present utility model.
Fig. 2 is a cross section structure schematic diagram of the present utility model.
Fig. 3 is the schematic diagram of specific embodiment of the utility model.
Fig. 4 is the motion state schematic diagram of specific embodiment shown in Figure 3.
Fig. 5 is the on-slip view of specific embodiment shown in Figure 3.
Among the figure, 1, shell one; 2, umbrella rope; 3, bobbin; 31, follower; 32, lacing hole; 33, wiring axle; 4, set casing; 41, handle; 42, rope hole; 5, voussoir; 51, circular hole; 6, spring; 7, actuator; 71, driving shaft; 72, drive block; 73, square hole; 8, shell two; 9, rocking handle; 10, umbrella stand; 11, vertical rod.
The specific embodiment
Below be specific embodiment of the utility model and in conjunction with the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiment.
With reference to Fig. 1, the present embodiment structure comprises parts such as shell 1, bobbin 3, set casing 4, voussoir 5, spring 6, actuator 7, shell 28, rocking handle 9.Bobbin 3 comprises follower 31, is used for fixing the lacing hole 32 and the wiring axle 33 of umbrella rope 2.The internal face surface of set casing 4 is made as disc, and bobbin 3, voussoir 5 and actuator 7 cooperatively interact and constitute the two-wire clutch component, drive in the rotation of the inside of set casing 4 by rocking handle 9.Be shaped on the rope hole of passing through for umbrella rope 2 42 on the set casing 4.Voussoir 5 is a strip structure, and its center is shaped on a circular hole 51 and is used to place spring 6.Actuator 7 comprises driving shaft 71 and the drive block 72 that is made as one, the center of drive block 72 is shaped on a square hole 73 that matches with rocking handle 9, the hole at this place can be blind hole or through-hole structure, and what adopt in the present embodiment is square hole, but does not get rid of the cavernous structure of other form.
With reference to Fig. 2, follower 31 and actuator 71 are similar semi-annular shape structure, and both are respectively in the both sides of voussoir 5, and itself and voussoir 5 contacted end faces are made as the plane.Voussoir 5 two ends are made as and the identical arc surface of set casing 4 inner surface radians, and they can be in set casing 4 inner smooth and easy slips.The contact-making surface that cooperates with spring 6 on the bobbin 3 is made as arc surface, one end of spring 6 is inlaid in the circular hole 51 of voussoir 5, the other end can slide on arc surface, because the effect of spring 6,5 of bobbin 3 and voussoirs have a support power all the time, make a side of voussoir 5 deflection driving shafts 71, promptly the arc surface of voussoir 5 both ends of the surface and driving shaft 71 are in the eccentric position of same disc.
With reference to Fig. 3, present embodiment is the crank structure that is installed on the parasols, and set casing 4 can flexibly connect with vertical rod 11, and it is provided with handle 41.
With reference to Fig. 4, Fig. 5, when shaking rocking handle 9 clockwise, cooperate rocking handle 9 because of being shaped on square hole 73 on the drive block 72, actuator 7 also clockwise rotates, be that driving shaft 71 begins to clockwise rotate,, drive voussoir 5 simultaneously and rotate as Fig. 4, an end of voussoir 5 withstands a transverse plane of follower 31 at this moment, impel bobbin 3 to rotate together, because of an end of umbrella rope 2 is fixed in the lacing hole 32 on the bobbin 3, when bobbin 3 rotates, umbrella rope 2 is wound in the bobbin 3, one end of umbrella rope 2 is connected in umbrella stand 10, opens so umbrella rope 2 drives umbrella stand 10, when rocking handle 9 stops to shake, as Fig. 5, because of the deadweight of umbrella stand 10, bobbin 3 has a power of counter-rotating, and this moment, one transverse plane of follower 31 withstood voussoir 5 counter-rotatings, but crossed the center of disc because of two arc surfaces of voussoir 5, big more anti-slip effect is good more so exert all one's strength, otherwise, when rocking handle 9 shakes counterclockwise, the other end of voussoir 5 can be withstood in the other end plane of follower 31, plays anti-slip effect equally.
Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Although this paper has used terms such as shell 1, umbrella rope 2, bobbin 3, follower 31, lacing hole 32, wiring axle 33, set casing 4, handle 41, rope hole 42, voussoir 5, circular hole 51, spring 6, actuator 7, actuator 71, drive block 72, square hole 73, shell 28, rocking handle 9, umbrella stand 10, vertical rod 11 morely, do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain essence of the present utility model more easily; They are construed to any additional restriction all is contrary with the utility model spirit.
Claims (9)
1. the crank structure of a two-way on-slip, comprise housing, bobbin (3), be fixed on umbrella rope (2) and rocking handle (9) on the bobbin (3), it is characterized in that, described enclosure interior is provided with the two-way clutch assembly, described two-way clutch assembly drives by rocking handle (9), and matches with bobbin (3) and to realize locking.
2. the crank structure of two-way on-slip according to claim 1, it is characterized in that, described two-way clutch assembly comprises the voussoir (5) of strip and the actuator (7) that is connected with rocking handle (9), and described voussoir (5) is formed eccentric clutch structure with actuator (7).
3. the crank structure of two-way on-slip according to claim 2, it is characterized in that described voussoir (5) middle part is provided with a circular hole (51), is provided with a spring (6) in the described circular hole (51), described spring (6) one ends are inlaid in the circular hole (51), and the other end and bobbin (3) offset.
4. the crank structure of two-way on-slip according to claim 3 is characterized in that, described bobbin (3) is made as arc surface with the contacted working face of spring (6).
5. the crank structure of two-way on-slip according to claim 3, it is characterized in that, the follower (31) that described bobbin (3) comprises wiring axle (33), matches with the two-way clutch assembly, described follower (31) is made as arc surface with the contacted working face of spring (6).
6. according to the crank structure of claim 4 or 5 described two-way on-slip, it is characterized in that described bobbin (3) is provided with lacing hole (32).
7. the crank structure of two-way on-slip according to claim 2, it is characterized in that, described actuator (7) comprises driving shaft (71) and the drive block (72) that is made as one, described driving shaft (71) matches with voussoir (5), and described drive block (72) is provided with the hole (73) that is connected with rocking handle (9).
8. according to the crank structure of claim 1 or 2 or 3 or 4 or 5 or 7 described two-way on-slip, it is characterized in that, described housing comprises shell one (1), set casing (4) and shell two (8), and described bobbin (3) and two-way clutch assembly are arranged on set casing (4) inside.
9. the crank structure of two-way on-slip according to claim 8 is characterized in that, the work inner surface of described set casing (4) is made as disc or sphere.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201871030U CN201718643U (en) | 2010-05-12 | 2010-05-12 | Bidirectional limited-slip crank structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201871030U CN201718643U (en) | 2010-05-12 | 2010-05-12 | Bidirectional limited-slip crank structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201718643U true CN201718643U (en) | 2011-01-26 |
Family
ID=43486906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201871030U Expired - Lifetime CN201718643U (en) | 2010-05-12 | 2010-05-12 | Bidirectional limited-slip crank structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201718643U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104444975A (en) * | 2014-10-13 | 2015-03-25 | 凯迈（洛阳）测控有限公司 | Rapid-clamping rocking handle and lifting device with same |
-
2010
- 2010-05-12 CN CN2010201871030U patent/CN201718643U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104444975A (en) * | 2014-10-13 | 2015-03-25 | 凯迈（洛阳）测控有限公司 | Rapid-clamping rocking handle and lifting device with same |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110126 |