CN209430521U - Safety protective air-leg - Google Patents
Safety protective air-leg Download PDFInfo
- Publication number
- CN209430521U CN209430521U CN201822114101.8U CN201822114101U CN209430521U CN 209430521 U CN209430521 U CN 209430521U CN 201822114101 U CN201822114101 U CN 201822114101U CN 209430521 U CN209430521 U CN 209430521U
- Authority
- CN
- China
- Prior art keywords
- piston
- block
- inclined plane
- lower inclined
- leg
- 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 - Fee Related
Links
- 230000001681 protective effect Effects 0.000 title claims abstract description 11
- 230000000903 blocking effect Effects 0.000 claims abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 4
- 239000011261 inert gas Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Fluid-Damping Devices (AREA)
Abstract
The utility model relates to air-leg fields, especially safety protective air-leg.The air-leg includes cylinder body, piston, piston rod and bushing, piston rod wears and is fixed on piston, bushing is fixed on the cover board inner wall of cylinder body, piston rod passes through the opening and bushing of cylinder body, piston is fitted on inboard wall of cylinder block, cavity is equipped in the piston, cavity upper and lower ends are respectively equipped with opening, horizontal sliding has the ramp block for blocking cavity upper end opening in piston, lower inclined plane block has been slided up and down in piston, ramp block is connect by elastic device one with piston, and lower inclined plane block is connect by elastic device two with piston.The utility model can drive lower inclined plane block to move up when pressure is larger, and the lower inclined plane block moved up pushes ramp block to move horizontally, to open and penetrate through closed opening, can thus allow gas by piston, achieve the effect that pressure release.
Description
Technical field
The utility model relates to air-leg fields, especially safety protective air-leg.
Background technique
Air-leg is the industry accessories of the effects of can playing support, buffering, braking, height adjustment and angular adjustment a kind of.
Principle is that inert gas or gas mixture are filled in closed pressure cylinder, and the intracorporal pressure of chamber is made to be higher than the several of atmospheric pressure
Times or tens times, be less than the cross-sectional area of piston using the cross-sectional area of piston rod to which the pressure difference generated realizes piston
The movement of bar.But working as existing air-leg has limit load amount, works as overload, is likely to result in the case where air-leg damages
Occur.
Summary of the invention
In order to damage when overcoming the shortcomings of that existing air-leg bears excessive load, the utility model provides a kind of peace
Full protection type air-leg.
The technical scheme adopted by the utility model to solve the technical problem is as follows: a kind of safety protective air-leg, including
Cylinder body, piston, piston rod and bushing, piston rod wear and are fixed on piston, are fixed with bushing on the cover board inner wall of cylinder body, living
Stopper rod passes through the opening and bushing of cylinder body, and piston is fitted on inboard wall of cylinder block, and cavity, cavity upper and lower ends are equipped in the piston
It is respectively equipped with opening, horizontal sliding has the ramp block for blocking cavity upper end opening in piston, has slided up and down in piston
Lower inclined plane block, ramp block are connect by elastic device one with piston, and lower inclined plane block is connect by elastic device two with piston.
Another embodiment according to the present utility model further comprises that upper end is equipped with sliding slot in the piston cavity, on
Ramp blocks bottom end is fixed with fin, and fin is placed in sliding slot and is slidably connected.
Another embodiment according to the present utility model further comprises that lower end is fixed with collar in the piston cavity,
Guide rod is fixed on lower inclined plane block, guide rod passes through collar.
It is spring that another embodiment according to the present utility model, which further comprises the elastic device one,.
It is spring that another embodiment according to the present utility model, which further comprises the elastic device two,.
The utility model has the beneficial effects that the utility model can drive lower inclined plane block to move up when pressure is larger, on
The lower inclined plane block of shifting pushes ramp block to move horizontally, to by closed opening opening and penetrate through, can thus allow gas
By piston, achieve the effect that pressure release.
Detailed description of the invention
The present invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 is the structural schematic diagram of the utility model；
1. cylinder body in figure, 2. pistons, 3. piston rods, 4. bushings, 5. ramp blocks, 6. lower inclined plane blocks, 7. elasticity
Device one, 8. elastic devices two, 9. collars, 10. guide rods.
Specific embodiment
If Fig. 1 is the structural schematic diagram of the utility model, a kind of safety protective air-leg, including cylinder body 1, piston 2, work
Stopper rod 3 and bushing 4, piston rod 3 wear and fix on the piston 2, and bushing 4, piston rod 3 are fixed on the cover board inner wall of cylinder body 1
Across the opening and bushing 4 of cylinder body 1, piston 2 is fitted on 1 inner wall of cylinder body, and cavity, cavity upper and lower two are equipped in the piston 2
End is respectively equipped with opening, and horizontal sliding has the ramp block 5 for blocking cavity upper end opening, upper downslide in piston 2 in piston 2
Dynamic to have lower inclined plane block 6, ramp block 5 connect by elastic device 1 with piston 2, lower inclined plane block 6 pass through elastic device 28 and
Piston 2 connects.Upper end is equipped with sliding slot in 2 cavity of piston, and 5 bottom end of ramp block is fixed with fin, and fin is placed in sliding slot
It is slidably connected.Lower end is fixed with collar 9 in 2 cavity of piston, and guide rod 10 is fixed on lower inclined plane block 6, and guide rod 10 passes through axis
Ring 9.The elastic device 1 is spring.The elastic device 28 is spring.
As shown in Fig. 1, after being filled with inert gas in cylinder body 1, piston 2 is filled with one end air pressure of inert gas, surpasses
It crosses after 2 other end normal pneumatic of piston, just will push piston 2 and piston rod 3 moves linearly along cylinder body 1, thus real
The stretching of piston rod 3 is showed.
When the pressure that 3 end of piston rod outside piston 2 is subject to is too big, piston 2 is filled with one end of inert gas, and gas can be from
The opening of 2 bottom of piston enters, and is expressed to lower inclined plane block 6, and the direction of the lower inclined plane block 6 for being up ramp blocks 5 is mobile, at this time
Elastic device 28 is in tensional state, and during lower inclined plane block 6 is mobile, guide rod 10 can be moved along collar 9, from
And the stability for keeping lower inclined plane block 6 mobile.
Instantly when ramp blocks 6 up move, the inclined-plane of lower inclined plane block 6 can squeeze the inclined-plane of ramp block 5, and pressure forces
Ramp blocks 5 are horizontally moved along upper end sliding rail in piston, and elastic device 1 is in squeezed state at this time.Ramp block 5 is not
When being under pressure, under the support of elastic device 1, ramp block 5 blocks the opening on piston.When 5 water of ramp block
After translation is dynamic, the opening on piston 2 will be exposed, and the opening of 2 upper and lower ends of piston is lazy in this way all in opening-wide state at this time
Property gas will be pierced by from the inner cavity of piston 2, to reduce the pressure of piston.
After pressure disappears, the retraction of elastic device 28 restores deformation, and lower inclined plane block 6 moves down reset.Lower inclined plane block
After 6 disappear for 5 pressure of ramp block, the rebound of elastic device 1 restores deformation, and piston 2 is blocked in the reset of ramp block 5 again
Opening.
Claims (5)
1. a kind of safety protective air-leg, including cylinder body (1), piston (2), piston rod (3) and bushing (4), piston rod (3) are worn
And if be fixed on piston (2), be fixed on the cover board inner wall of cylinder body (1) bushing (4), piston rod (3) passes through cylinder body (1) and opens
Mouthful and bushing (4), piston (2) is fitted on cylinder body (1) inner wall, characterized in that cavity is equipped in the piston (2), on cavity
Lower both ends are respectively equipped with opening, and horizontal sliding has the ramp block (5) for blocking cavity upper end opening, piston in piston (2)
(2) it has been slided up and down lower inclined plane block (6) in, ramp block (5) is connect by elastic device one (7) with piston (2), lower inclined plane block
(6) it is connect by elastic device two (8) with piston (2).
2. safety protective air-leg according to claim 1, characterized in that upper end is equipped in piston (2) cavity
Sliding slot, ramp block (5) bottom end are fixed with fin, and fin is placed in sliding slot and is slidably connected.
3. safety protective air-leg according to claim 1, characterized in that lower end is fixed in piston (2) cavity
Have collar (9), be fixed on lower inclined plane block (6) guide rod (10), guide rod (10) passes through collar (9).
4. safety protective air-leg according to claim 1, characterized in that the elastic device one (7) is spring.
5. safety protective air-leg according to claim 1, characterized in that the elastic device two (8) is spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822114101.8U CN209430521U (en) | 2018-12-17 | 2018-12-17 | Safety protective air-leg |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822114101.8U CN209430521U (en) | 2018-12-17 | 2018-12-17 | Safety protective air-leg |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209430521U true CN209430521U (en) | 2019-09-24 |
Family
ID=67972087
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822114101.8U Expired - Fee Related CN209430521U (en) | 2018-12-17 | 2018-12-17 | Safety protective air-leg |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209430521U (en) |
-
2018
- 2018-12-17 CN CN201822114101.8U patent/CN209430521U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190924 |