CN103190991A - Stretcher wheel with oblique slip prevention and self-locking functions - Google Patents
Stretcher wheel with oblique slip prevention and self-locking functions Download PDFInfo
- Publication number
- CN103190991A CN103190991A CN2013101124134A CN201310112413A CN103190991A CN 103190991 A CN103190991 A CN 103190991A CN 2013101124134 A CN2013101124134 A CN 2013101124134A CN 201310112413 A CN201310112413 A CN 201310112413A CN 103190991 A CN103190991 A CN 103190991A
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- wheel
- rotating shaft
- stretcher
- medial surface
- race
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Abstract
The invention relates to the technical field of medical equipment, in particular to a stretcher wheel with oblique slip prevention and self-locking functions. The stretcher wheel is formed by a wheel slot, a wheel, wheel clamps and a rotating shaft. The wheel is sleeved on the rotating shaft, and the wheel and the rotating shaft are in clearance fit. The annular wheel clamps respectively sleeved on the rotating shaft are arranged on two sides of the wheel, and the wheel clamps and the rotating shaft are respectively in interference fit. The annular wheel slot is arranged on the wheel surface of the wheel. Two inner side surfaces on the inner side of the wheel slot respectively form the same angle degree with the axis of the rotating shaft and have opposite-direction inclined angles. The stretcher wheel can clamp longitudinal convex lines of automatic pedestrian ramps on the condition that wheels of a stretcher roll, has the function of actively preventing the stretcher from sliding, and has strong safety.
Description
Technical field
The present invention relates to technical field of medical instruments, particularly relate to a kind of stretcher wheel with anti-tiltedly sliding auto-lock function.
Background technology
The wheel of existing stretcher has groove in its side, and when stretcher was pushed to automatic pedestrian ramp, the raised line longitudinally on the ramp was inserted in the groove of wheel, and the frictional force between groove inwall and the raised line sidewall has stoped the downward slip of stretcher.But because the long term wear between raised line and the groove, the thickness of raised line is tapered, and groove also broadens gradually, and the cooperation between the two fluffs moving gradually, and frictional force weakens thereupon, thereby the safety coefficient of stretcher is reduced.
Summary of the invention
The present invention provides a kind of stretcher wheel with anti-tiltedly sliding auto-lock function with stronger antiskiding factor for solving the deficiencies in the prior art.
The scheme that solves the technology of the present invention problem is: have the stretcher wheel of anti-tiltedly sliding auto-lock function, be made of race, wheel, wheel card and rotating shaft.Wherein, wheel is placed in the rotating shaft and with rotating shaft and becomes clearance fit relationship, and the both sides of wheel have a wheel card that is placed in the annular in the rotating shaft respectively, and each is taken turns card and all becomes the interference fit relation with rotating shaft.The race that an annular is arranged on the wheel face of wheel.Two medial surface of race inboard all become the identical number of degrees and rightabout inclination angle with the axial line of rotating shaft, and two medial surface are symmetrical about the vertical bisector plane of wheel.The ultimate range of two medial surface must be greater than the width of the automatic vertical raised line of pedestrian ramp, and the minimum range of two medial surface must be less than the width of the automatic vertical raised line of pedestrian ramp.
When the race of described wheel was stuck on vertical raised line of automatic pedestrian ramp, when wheel rotated, the lower end of race can narrow down gradually, and raised line clamps the most at last, thereby has played the effect that prevents that stretcher from sliding.
Adopt such scheme, compared with prior art, the present invention has following marked improvement:
Because the present invention can be under the situation of the wheel rolling of stretcher vertical raised line of automatic pedestrian ramp is clamped, and has the function that initiatively prevents the stretcher slip, compared with prior art, has stronger safety.
Description of drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is the A-A profile of Fig. 1;
Fig. 3 is the B-B profile of Fig. 1.
Among the figure, arrow represents medial surface gradient direction from high to low.
Among the figure: 1. race 2. wheels 3. are taken turns card 4. rotating shafts 5. medial surface
The specific embodiment
The invention will be further described below in conjunction with drawings and Examples.
Stretcher wheel with anti-tiltedly sliding auto-lock function is made of race 1, wheel 2, wheel card 3 and rotating shaft 4.Wherein, wheel 2 be placed in the rotating shaft 4 and with 4 one-tenth clearance fit relationship of rotating shaft, the both sides of wheel 2 have a wheel card 3 that is placed in the annular in the rotating shaft 4 respectively, each take turns card 3 all with 4 one-tenth interference fit relations of rotating shaft.The race 1 that an annular is arranged on the wheel face of wheel 2.Two medial surface 5 of race 1 inboard all become the identical number of degrees and rightabout inclination angle with the axial line of rotating shaft 4, and two medial surface 5 are symmetrical about the vertical bisector plane of wheel 2.The ultimate range of two medial surface 5 must be greater than the width of the automatic vertical raised line of pedestrian ramp, and the minimum range of two medial surface 5 must be less than the width of the automatic vertical raised line of pedestrian ramp.
When the race 1 of described wheel 2 was stuck on vertical raised line of automatic pedestrian ramp, when wheel 2 rotated, the lower end of race 1 can narrow down gradually, and raised line clamps the most at last, thereby has played the effect that prevents that stretcher from sliding.
Claims (1)
1. one kind has the anti-stretcher wheel of tiltedly sliding auto-lock function, constituted by race, wheel, wheel card and rotating shaft, it is characterized in that: wheel is placed in the rotating shaft and with rotating shaft and becomes clearance fit relationship, the both sides of wheel have a wheel card that is placed in the annular in the rotating shaft respectively, each is taken turns card and all becomes the interference fit relation with rotating shaft, and the race of an annular is arranged on the wheel face of wheel.Two medial surface of race inboard all become the identical number of degrees and rightabout inclination angle with the axial line of rotating shaft, two medial surface are symmetrical about the vertical bisector plane of wheel, the ultimate range of two medial surface must be greater than the width of the automatic vertical raised line of pedestrian ramp, and the minimum range of two medial surface must be less than the width of the automatic vertical raised line of pedestrian ramp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101124134A CN103190991A (en) | 2013-04-02 | 2013-04-02 | Stretcher wheel with oblique slip prevention and self-locking functions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101124134A CN103190991A (en) | 2013-04-02 | 2013-04-02 | Stretcher wheel with oblique slip prevention and self-locking functions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103190991A true CN103190991A (en) | 2013-07-10 |
Family
ID=48713930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013101124134A Pending CN103190991A (en) | 2013-04-02 | 2013-04-02 | Stretcher wheel with oblique slip prevention and self-locking functions |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103190991A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0073272B1 (en) * | 1981-08-29 | 1985-04-10 | Binz GmbH & Co | Stretcher with security-belt system |
| US5123797A (en) * | 1989-07-24 | 1992-06-23 | Stierlen-Maquet Ag | Transport carriage for operating table platforms |
| CN2245440Y (en) * | 1995-11-28 | 1997-01-22 | 李桂清 | Multifunction portable folding stretcher |
| JPH09221071A (en) * | 1996-02-17 | 1997-08-26 | Nippon Clean Engine Lab Co Ltd | Endless crawler belt, method for changing direction of boggie with crawler belt wheel and its device |
| CN201510439U (en) * | 2009-04-23 | 2010-06-23 | 沈红星 | Full-automatic getting-in stretcher |
| CN201887383U (en) * | 2010-11-30 | 2011-06-29 | 湖北省电力公司襄樊供电公司 | Crossing block |
| CN102259649A (en) * | 2011-05-27 | 2011-11-30 | 河南旭德隆电力设备有限公司 | Curve cableway transporting system of double-cable circulating type |
| CN202478007U (en) * | 2012-03-31 | 2012-10-10 | 高爱芝 | Nursing stretcher |
-
2013
- 2013-04-02 CN CN2013101124134A patent/CN103190991A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0073272B1 (en) * | 1981-08-29 | 1985-04-10 | Binz GmbH & Co | Stretcher with security-belt system |
| US5123797A (en) * | 1989-07-24 | 1992-06-23 | Stierlen-Maquet Ag | Transport carriage for operating table platforms |
| CN2245440Y (en) * | 1995-11-28 | 1997-01-22 | 李桂清 | Multifunction portable folding stretcher |
| JPH09221071A (en) * | 1996-02-17 | 1997-08-26 | Nippon Clean Engine Lab Co Ltd | Endless crawler belt, method for changing direction of boggie with crawler belt wheel and its device |
| CN201510439U (en) * | 2009-04-23 | 2010-06-23 | 沈红星 | Full-automatic getting-in stretcher |
| CN201887383U (en) * | 2010-11-30 | 2011-06-29 | 湖北省电力公司襄樊供电公司 | Crossing block |
| CN102259649A (en) * | 2011-05-27 | 2011-11-30 | 河南旭德隆电力设备有限公司 | Curve cableway transporting system of double-cable circulating type |
| CN202478007U (en) * | 2012-03-31 | 2012-10-10 | 高爱芝 | Nursing stretcher |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130710 |