CN202251242U - Gas-off self-locking device for air cylinder - Google Patents
Gas-off self-locking device for air cylinder Download PDFInfo
- Publication number
- CN202251242U CN202251242U CN2011203335189U CN201120333518U CN202251242U CN 202251242 U CN202251242 U CN 202251242U CN 2011203335189 U CN2011203335189 U CN 2011203335189U CN 201120333518 U CN201120333518 U CN 201120333518U CN 202251242 U CN202251242 U CN 202251242U
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- hydraulic cylinder
- cylinder
- air cylinder
- self
- hole
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Abstract
The utility model discloses a gas-off self-locking device for an air cylinder and relates to improving technology of self-locking devices of air cylinders. The gas-off self-locking device is formed by a main air cylinder, a single-acting air cylinder, a hydraulic cylinder body and a main air cylinder rod, wherein the hydraulic cylinder body is arranged above the main air cylinder, a tubular hydraulic cylinder inner wall is arranged at the central position in the hydraulic cylinder body, an annular hydraulic cylinder cover is installed on the hydraulic cylinder body, and the inside of the hydraulic cylinder body is sealed into an annular cavity structure by the hydraulic cylinder cover. A main air cylinder rod of the main air cylinder extends out from the top to be inserted in an inner hole of the hydraulic cylinder inner wall, and the main air cylinder rod is in up-down slide fit with the hydraulic cylinder inner wall. A through hole is arranged on the outer wall of the hydraulic cylinder body, the single-acting air cylinder is installed on the outer side of the through hole, and a piston of the single-acting air cylinder is arranged in the through hole. The gas-off self-locking device resolves the problem that an existing gas-off self-locking mechanism is low in clamping force and unable to balance large load.
Description
Technical field
The utility model relates to the improvement technology of cylinder self-locking device.
Background technique
The die principle of self-locking mechanism of present cylinder is, after mechanism died, the cylinder column that relies on the spring-back force of spring to clamp master cylinder fully came balanced load, owing to limited by spring and mechanism size, clamping force is lower, can't balance than heavy load.
The model utility content
The utility model is in providing a kind of cylinder self-locking device of dying, and it is lower that the utility model has solved the existing cylinder self-locking mechanism clamping force of dying, can't balance than the problem of heavy load.
For addressing the above problem, the utility model adopts following technological scheme: be made up of master cylinder 1, single-acting cylinder 2, hydraulic cylinder 4, hydraulic cylinder 5, master cylinder bar 6;
Hydraulic cylinder 4 is installed on above the master cylinder 1; Centre bit is equipped with the oil hydraulic cylinder inwall 7 of cylinder tube shape in the said hydraulic cylinder 4, the hydraulic cylinder 5 of annular is installed, the cavity structure that hydraulic cylinder 5 circularizes hydraulic cylinder 4 inner sealings above the hydraulic cylinder 4;
The master cylinder bar 6 of master cylinder 1 stretches out from above and is inserted in the endoporus of oil hydraulic cylinder inwall 7, forms the slide down dynamic formula between master cylinder bar 6 and oil hydraulic cylinder inwall 7 endoporus and cooperates;
Outer wall at hydraulic cylinder 4 has a through hole, and single-acting cylinder 2 is installed on the outside of through hole, and the piston 3 of single-acting cylinder 2 is arranged in the through hole.
The working procedure of the utility model is: when pressurized gas is led in mechanism, and the single-acting cylinder retraction, the master cylinder bar can be free movable.When dying, the recoil of spring in the single-acting cylinder promotes piston, and the hydraulic pressure grease in hydraulic cylinder receives the pressure of piston; Because piston area is very little, will in the hydraulic pressure grease, produce very big pressure, according to the static pressure principle; This pressure is delivered to oil hydraulic cylinder everywhere with equivalence, because that the inner wall area of oil hydraulic cylinder is compared piston area is much bigger, the oil hydraulic cylinder inwall just bears very big power; And the inwall of oil hydraulic cylinder is very thin, and the oil hydraulic cylinder inwall will produce distortion like this, with master cylinder bar clamping tightly; Its clamping force is far longer than the elastic force of spring, but the heavier load of balance.
The cylinder of the utility model self-locking device of dying, effectively bigger load in the balance sysmte, it is big to have clamping force, safe in utilization, the advantage of reliable operation.
Description of drawings
Fig. 1 is the utility model structural representation.
Symbol description among the figure: 1, master cylinder; 2, single-acting cylinder; 3, piston; 4, hydraulic cylinder; 5, hydraulic cylinder; 6, master cylinder bar; 7, oil hydraulic cylinder inwall.
Embodiment
As shown in Figure 1, the cylinder self-locking device of dying is made up of master cylinder 1, single-acting cylinder 2, hydraulic cylinder 4, hydraulic cylinder 5, master cylinder bar 6;
Hydraulic cylinder 4 is installed on above the master cylinder 1; Centre bit is equipped with the oil hydraulic cylinder inwall 7 of cylinder tube shape in the said hydraulic cylinder 4, the hydraulic cylinder 5 of annular is installed, the cavity structure that hydraulic cylinder 5 circularizes hydraulic cylinder 4 inner sealings above the hydraulic cylinder 4;
The master cylinder bar 6 of master cylinder 1 stretches out from above and is inserted in the endoporus of oil hydraulic cylinder inwall 7, forms the slide down dynamic formula between master cylinder bar 6 and oil hydraulic cylinder inwall 7 endoporus and cooperates;
Outer wall at hydraulic cylinder 4 has a through hole, and single-acting cylinder 2 is installed on the outside of through hole, and the piston 3 of single-acting cylinder 2 is arranged in the through hole.
What should explain at last is: obviously, the foregoing description only be for explain clearly that the utility model does for example, and be not qualification to mode of execution.For the those of ordinary skill in affiliated field, on the basis of above-mentioned explanation, can also make other multi-form variation or change.Here need not also can't give exhaustive to all mode of executions.And conspicuous variation of being amplified out thus or change still are among the protection domain of the utility model.
Claims (1)
1. the cylinder self-locking device of dying is characterized in that, is made up of master cylinder (1), single-acting cylinder (2), hydraulic cylinder (4), hydraulic cylinder (5), master cylinder bar (6);
Hydraulic cylinder (4) is installed on above the master cylinder (1); The interior centre bit of said hydraulic cylinder (4) is equipped with the oil hydraulic cylinder inwall (7) of cylinder tube shape, the hydraulic cylinder (5) of annular is installed, the cavity structure that hydraulic cylinder (5) circularizes hydraulic cylinder (4) inner sealing above the hydraulic cylinder (4);
The master cylinder bar (6) of master cylinder (1) stretches out from above and is inserted in the endoporus of oil hydraulic cylinder inwall (7), forms the slide down dynamic formula between master cylinder bar (6) and oil hydraulic cylinder inwall (7) endoporus and cooperates;
Outer wall at hydraulic cylinder (4) has a through hole, and single-acting cylinder (2) is installed on the outside of through hole, and the piston (3) of single-acting cylinder (2) is arranged in the through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203335189U CN202251242U (en) | 2011-09-06 | 2011-09-06 | Gas-off self-locking device for air cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203335189U CN202251242U (en) | 2011-09-06 | 2011-09-06 | Gas-off self-locking device for air cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202251242U true CN202251242U (en) | 2012-05-30 |
Family
ID=46112492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203335189U Expired - Fee Related CN202251242U (en) | 2011-09-06 | 2011-09-06 | Gas-off self-locking device for air cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202251242U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110281186A (en) * | 2019-07-31 | 2019-09-27 | 江铃汽车股份有限公司 | A kind of pneumatic rear axle press-loading apparatus |
-
2011
- 2011-09-06 CN CN2011203335189U patent/CN202251242U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110281186A (en) * | 2019-07-31 | 2019-09-27 | 江铃汽车股份有限公司 | A kind of pneumatic rear axle press-loading apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20150906 |
|
| EXPY | Termination of patent right or utility model |