CN2834967Y - Circulate shifting cam on medical bed truckle - Google Patents
Circulate shifting cam on medical bed truckle Download PDFInfo
- Publication number
- CN2834967Y CN2834967Y CN 200520104188 CN200520104188U CN2834967Y CN 2834967 Y CN2834967 Y CN 2834967Y CN 200520104188 CN200520104188 CN 200520104188 CN 200520104188 U CN200520104188 U CN 200520104188U CN 2834967 Y CN2834967 Y CN 2834967Y
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- wheel hub
- groove
- protruding tooth
- convex teeth
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Abstract
A circulating shifting cam on medical bed truckles relates to the technical field of machines of partial products of medical equipment. The utility model comprises a wheel hub with the structure of a circular wheel hub shape and a hexagonal six-angle hole, and is also provided with convex teeth with the structures of fish fin shapes, wherein the center of the wheel hub is provided with the six-angle hole. The middle position of an excircle of the wheel hub is provided with three convex teeth in a radiant mode, and the separating angles of the convex teeth are angles of 120 DEG. Grooves are arranged on the wheel hub, on the top ends of the convex teeth and on the front ends of the tail parts of the convex teeth. Each angle between two adjacent grooves of the grooves on the wheel hub, on the top ends of the convex teeth and on the front ends of the tail parts of the convex teeth is 40 DEG. The utility model is used for circulating shifting on medical bed truckles. The utility model has simple, skillful and original structure and changes hooking and tread shifting into the pattern of continuous and circulating shifting. The circulating shifting cam on medical bed truckles has the advantages of convenient operation, simple manufacture, low cost and favorable popularization.
Description
Technical field
Circulation variable block cam on the utility model hospital bed castor relates to field of mechanical technique; Be particularly related to the field of mechanical technique of medicine equipment part; Be specifically related to the circulation variable block cam technical field on the hospital bed castor.
Background technology
At present, the cam on the hospital bed castor, for the structure that shape constituted of the structure of having only a protruding tooth on the wheel hub and protruding tooth also reasonable inadequately; The major defect that this not enough rational structure caused is: only tramp with one's feet operate devices and cam is revolved turn around and just can finish the gearshift action; When carrying out shifting gears the second time, repeat the operation that pin steps on after the mode that need take to collude resets cam by handling device again and can finish; Like this, the operation mode of colluding in the employing, stepping on is down braked, directed, three kinds of gear shift operation turning to, is extremely loaded down with trivial details and inconvenient.The utility model is conscientious and on sufficient investigation, understanding, analysis, the existing deficiency of the present cam of summary, defective and the drawback basis and succeed in developing.
The utility model content
The purpose of this utility model provides the circulation variable block cam on a kind of hospital bed castor.Be provided with three protruding teeth by hexagon ring, the especially wheel hub that is provided with on wheel hub and the wheel hub and constitute the utility model.Thereby make hospital bed or car brake, orientation, turn to three kinds of shift processes, realize circulation, continuous, smooth and easy, purpose easily.The utility model can accomplish the end in view.
For achieving the above object, the technical scheme that the utility model provides is: the circulation variable block cam on a kind of hospital bed castor comprises wheel hub, hexagon ring, also is provided with protruding tooth;
Described wheel hub is circular hub-like structure, and described hexagon ring is hexagonal hole; Described protruding tooth is a fin shape structure;
Circulation variable block cam on the described hospital bed castor, the center of its wheel hub is provided with hexagon ring, and its wheel hub cylindrical position intermediate is connected with protruding tooth with the mode setting of radiation.
Be provided with altogether on the described wheel hub and be connected with three protruding teeth, the protruding tooth that described setting is connected on the wheel hub is provided with one for spending angles every 120.
Described protruding tooth and protruding tooth mutually on the wheel hub of Lin Chu with direct-axis to mode groove, this groove of being provided with semicircular arc be provided with three altogether, for being provided with one every 120 degree angles.
Groove, the angle between this two groove that the top of described protruding tooth fin shape structure and the afterbody front end of fin shape structure are provided with arc are 40 degree angles.
Angle between the groove on angle between the groove on groove on the described wheel hub and the protruding crest end, the groove on the protruding crest end and the protruding tooth afterbody front end, the groove on the protruding tooth afterbody front end and the angle between the groove on the wheel hub are 40 degree angles.
Owing to adopted the technical solution of the utility model, this technical scheme even angle with 120 degree of being separated by on wheel hub is provided with three protruding teeth with distributing, this scientific and reasonable setting and simple particular structure are compared with present cam, have following beneficial effect:
1, is convenient to operation and rapid operation, quick, smooth and easy.No matter to brake, directed, the conversion that turns to which kind of gear, only using foot is stepped on handling device one and get final product, fundamentally changed present to the cam gear shift operation " on collude, step on down, collude, step on down again on again ... " this loaded down with trivial details operation mode.
2, make gearshift realize the circulation serialization.As long as one steps on, just realize once gearshift; Step on again, just realize gearshift next time; Like this, connect the company of stepping on and change, continuously circulation; For hospital bed or vehicle for medical use or other each relevant similar vehicles caster wheel gearshift provide new operation mode.
3, provide new, scientific and reasonable cam parts product for hospital bed, vehicle for medical use and similar model vehicle caster wheel.
4, design science rationally, simple and ingenious structure and uniqueness, easy to use and effect remarkable, it is low, easy to use to be easy to be made and be beneficial to popularization.
Description of drawings
Fig. 1 looks scheme drawing for the master of the utility model specific embodiment.
Fig. 2 looks scheme drawing for the left side of the utility model specific embodiment; With being connected of pecked line, represent between two figure line of corresponding point mutually between Fig. 1 and Fig. 2, further deepen the understanding that concerns between Fig. 1 and Fig. 2 with this line.
Fig. 3 overlooks the semi-section scheme drawing for the utility model specific embodiment.
Fig. 4 is that A-A among Fig. 1 is to generalized section; By Fig. 3 and Fig. 4 and contrast Fig. 1 and Fig. 2, can further deepen understanding of the present utility model.
Fig. 5 looks scheme drawing for the processing and fabricating technical requirements main points master of the utility model specific embodiment.
Fig. 6 looks scheme drawing for present existing cam master; As with contrast figure of the present utility model.
Fig. 7 is present existing cam schematic top plan view; As with contrast figure of the present utility model.
Label among the figure: 1, wheel hub, 2, hexagon ring, 3, protruding tooth.
The specific embodiment
Below in conjunction with Figure of description, the utility model is described in detail.Shown in Figure of description 1-5: the circulation variable block cam on a kind of hospital bed castor comprises wheel hub 1, hexagon ring 2, also is provided with protruding tooth 3;
Described wheel hub 1 is circular hub-like structure, and described hexagon ring 2 is hexagonal hole; Described protruding tooth 3 is a fin shape structure;
Circulation variable block cam on the described hospital bed castor, the center of its wheel hub 1 is provided with hexagon ring 2, and its wheel hub 1 cylindrical position intermediate is connected with protruding tooth 3 with the mode setting of radiation.
Be provided with altogether on the described wheel hub 1 and be connected with three protruding teeth 3, the protruding tooth 3 that described setting is connected on the wheel hub 1 is provided with one for spending angles every 120.
Described protruding tooth 3 and protruding tooth 3 mutually on the wheel hub 1 of Lin Chu with direct-axis to mode groove, this groove of being provided with semicircular arc be provided with three altogether, for being provided with one every 120 degree angles.
Groove, the angle between this two groove that the top of described protruding tooth 3 fin shape structures and the afterbody front end of fin shape structure are provided with arc are 40 degree angles.
Angle between the groove on angle between the groove on groove on the described wheel hub 1 and protruding tooth 3 tops, the groove on protruding tooth 3 tops and the protruding tooth 3 afterbody front ends, the groove on the protruding tooth 3 afterbody front ends and the angle between the groove on the wheel hub 1 are 40 degree angles.
The above is preferred embodiment of the present utility model only, is not that the utility model is done any pro forma restriction; The those of ordinary skill of all industry, but all shown in the by specification accompanying drawing and the above, and implement the utility model swimmingly; But all those skilled in the art in not breaking away from the technical solutions of the utility model scope, when can utilizing the above technology contents that discloses, and a little change of making, modify the equivalent variations with differentiation, are equivalent embodiment of the present utility model; Simultaneously, all foundations essence technology of the present utility model all still belongs in the scope of technical solutions of the utility model change, modification and the differentiation etc. of any equivalent variations that above embodiment does.
The utility model has carried out property on probation examination after making and finishing, and through examination on probation, has obtained the good result of expection.
Claims (5)
1, the circulation variable block cam on a kind of hospital bed castor comprises wheel hub (1), hexagon ring (2), it is characterized in that: also is provided with protruding tooth (3);
Described wheel hub (1) is circular hub-like structure, and described hexagon ring (2) is hexagonal hole; Described protruding tooth (3) is a fin shape structure;
Circulation variable block cam on the described hospital bed castor, the center of its wheel hub (1) is provided with hexagon ring (2), and its wheel hub (1) cylindrical position intermediate is connected with protruding tooth (3) with the mode setting of radiation.
2, the circulation variable block cam on the hospital bed castor according to claim 1 is characterized in that: described wheel hub (1) is gone up to be provided with altogether and is connected with three protruding teeth (3), and the protruding tooth (3) that described setting is connected on the wheel hub (1) is provided with one for spending angles every 120.
3, the circulation variable block cam on the hospital bed castor according to claim 1 is characterized in that: described protruding tooth (3) and protruding tooth (3) mutually the wheel hub of Lin Chu (1) go up with direct-axis to mode groove, this groove of being provided with semicircular arc be provided with three altogether, for being provided with one every 120 degree angles.
4, the circulation variable block cam on the hospital bed castor according to claim 1 is characterized in that: groove, the angle between this two groove that the top of described protruding tooth (3) fin shape structure and the afterbody front end of fin shape structure are provided with arc are 40 degree angles.
5, the circulation variable block cam on the hospital bed castor according to claim 1 is characterized in that: the angle between the angle between the groove on groove on the described wheel hub (1) and protruding tooth (3) top, the groove on protruding tooth (3) top and the groove on protruding tooth (3) the afterbody front end, the groove on protruding tooth (3) the afterbody front end and the angle between the groove on the wheel hub (1) are 40 degree angles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520104188 CN2834967Y (en) | 2005-08-23 | 2005-08-23 | Circulate shifting cam on medical bed truckle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520104188 CN2834967Y (en) | 2005-08-23 | 2005-08-23 | Circulate shifting cam on medical bed truckle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2834967Y true CN2834967Y (en) | 2006-11-08 |
Family
ID=37299626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520104188 Expired - Fee Related CN2834967Y (en) | 2005-08-23 | 2005-08-23 | Circulate shifting cam on medical bed truckle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2834967Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI790180B (en) * | 2022-08-02 | 2023-01-11 | 取德工業股份有限公司 | Caster with a circular positioning structure |
-
2005
- 2005-08-23 CN CN 200520104188 patent/CN2834967Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI790180B (en) * | 2022-08-02 | 2023-01-11 | 取德工業股份有限公司 | Caster with a circular positioning structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20061108 |