CN202531543U - Automatic locking device for hydraulic cylinder - Google Patents
Automatic locking device for hydraulic cylinder Download PDFInfo
- Publication number
- CN202531543U CN202531543U CN2012200655508U CN201220065550U CN202531543U CN 202531543 U CN202531543 U CN 202531543U CN 2012200655508 U CN2012200655508 U CN 2012200655508U CN 201220065550 U CN201220065550 U CN 201220065550U CN 202531543 U CN202531543 U CN 202531543U
- Authority
- CN
- China
- Prior art keywords
- locking
- cylinder sleeve
- locking device
- piston
- piston rod
- 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
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Abstract
The utility model discloses an automatic locking device, and in particular relates to an automatic locking device for a hydraulic cylinder. The automatic locking device comprises a cylinder sleeve, an upper end cover and a lower end cover, wherein the upper end of the cylinder sleeve is fixed with the upper end cover, and the lower end of the cylinder sleeve is fixed with the lower end cover; the cylinder sleeve is internally provided with a piston which is connected with a piston rod; the piston rod extends upward to the outer side of the upper end cover; the cylinder sleeve is internally provided with a locking device which comprises a locking support, a locking wedge block and a locking piston; the locking piston is arranged above the locking support, and a spring is arranged between the locking support and the locking piston; the locking wedge block is arranged above the locking piston; and the locking support, the locking wedge block and the locking piston are respectively matched with the piston rod in a sliding way. With the adoption of the automatic locking device, a hydraulic locking control loop of the hydraulic cylinder is simplified, and the equipment cost is reduced.
Description
Technical field
The utility model relates to a kind of forced locking device that is used on the hydraulic jack.
Background technique
Hydraulic jack is can convert hydraulic pressure into mechanical energy in the hydraulic pressure installation; Realize the executive component of straight reciprocating motion; In equipment uses, usually require oil cylinder reliably to lock also stopping of long period, and existing locking mode is to control with various hydraulic locks loop in any output services position; The locking mode in hydraulic lock loop leakage problem occurs through regular meeting, so just can not guarantee the reliability of locking.
The model utility content
For solving the problems of the technologies described above, the utility model provides a kind of can effectively reduce erosion and the reciprocating wearing and tearing of piston rod that receive hydraulic oil because of seal ring, causes a kind of hydraulic jack forced locking device of hydraulic jack leakage of oil easily.
A kind of hydraulic jack forced locking device of the utility model comprises cylinder sleeve, upper end cap and lower end cap, and said cylinder sleeve upper end is upper end cap fixedly; Said cylinder sleeve lower end is lower end cap fixedly, is provided with piston in the said cylinder sleeve, and said piston is connected with piston rod; Said piston rod extends upward the outside to upper end cap; Be provided with locking device in the said cylinder sleeve, said locking device comprises locking support, locking wedge block and latching ram, said locking support the top be provided with latching ram and between be provided with spring; Said latching ram top is provided with locking wedge block, and said locking support, locking wedge block and latching ram all are slidingly matched with piston rod.
A kind of hydraulic jack forced locking device of the utility model is established control port and air outlet on the said cylinder sleeve.
A kind of hydraulic jack forced locking device of the utility model is established actuator port on the said cylinder sleeve.
A kind of hydraulic jack forced locking device of the utility model, the upper end of said piston rod is connected with the connection earrings.
Compared with prior art the beneficial effect of the utility model is: owing to be provided with locking device in the cylinder sleeve; Locking device comprises locking support, locking wedge block and latching ram; Locking support the top be provided with latching ram and between be provided with spring; The latching ram top is provided with locking wedge block, and locking support, locking wedge block and latching ram all are slidingly matched with piston rod; Simplify the hydraulic lock control loop of hydraulic jack like this, reduced equipment cost.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the embodiment of the utility model is described in further detail.Following examples are used to explain the utility model, but are not used for limiting the scope of the utility model.
Referring to Fig. 1, a kind of hydraulic jack forced locking device of the utility model comprises cylinder sleeve 1, upper end cap 2 and lower end cap 3; Establish control port 10 and air outlet 11 on the cylinder sleeve 1, establish actuator port 12 on the cylinder sleeve, cylinder sleeve 1 upper end is upper end cap 2 fixedly; Cylinder sleeve 1 lower end is lower end cap 3 fixedly, is provided with piston 4 in the cylinder sleeve 1, and piston 4 is connected with piston rod 5; Piston rod 5 extends upward to the outside of upper end cap 2, is provided with locking device in the cylinder sleeve 1, and locking device comprises locking support 6, locking wedge block 7 and latching ram 8; Locking support 6 tops be provided with latching ram 8 and between be provided with spring 9; Latching ram 8 tops are provided with locking wedge block 7, and locking support 8, locking wedge block 7 and latching ram 8 all are slidingly matched with piston rod 5, and the upper end of piston rod 5 is connected with and connects earrings 13.
The utility model embodiment is owing to be provided with locking device in the cylinder sleeve; Locking device comprises locking support 6, locking wedge block 7 and latching ram 8; Locking support 6 tops be provided with latching ram 8 and between be provided with spring 9; Latching ram 8 tops are provided with locking wedge block 7, and locking support 6, locking wedge block 7 and latching ram 8 all are slidingly matched with piston rod 5; Simplify the hydraulic lock control loop of hydraulic jack like this, reduced equipment cost.
From the above only is the preferred implementation of the utility model; Should be understood that; For those skilled in the art; Under the prerequisite that does not break away from the utility model know-why, can also make some improvement and modification, these improvement and modification also should be regarded as the protection domain of the utility model.
Claims (4)
1. a hydraulic jack forced locking device comprises cylinder sleeve, upper end cap and lower end cap, and said cylinder sleeve upper end is upper end cap fixedly; Said cylinder sleeve lower end is lower end cap fixedly, is provided with piston in the said cylinder sleeve, and said piston is connected with piston rod; Said piston rod extends upward the outside to upper end cap; It is characterized in that: be provided with locking device in the said cylinder sleeve, said locking device comprises locking support, locking wedge block and latching ram, said locking support the top be provided with latching ram and between be provided with spring; Said latching ram top is provided with locking wedge block, and said locking support, locking wedge block and latching ram all are slidingly matched with piston rod.
2. a kind of hydraulic jack forced locking device as claimed in claim 1 is characterized in that: establish control port and air outlet on the said cylinder sleeve.
3. a kind of hydraulic jack forced locking device as claimed in claim 1 is characterized in that: establish actuator port on the said cylinder sleeve.
4. a kind of hydraulic jack forced locking device as claimed in claim 1, it is characterized in that: the upper end of said piston rod is connected with the connection earrings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200655508U CN202531543U (en) | 2012-02-27 | 2012-02-27 | Automatic locking device for hydraulic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200655508U CN202531543U (en) | 2012-02-27 | 2012-02-27 | Automatic locking device for hydraulic cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202531543U true CN202531543U (en) | 2012-11-14 |
Family
ID=47132732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200655508U Expired - Fee Related CN202531543U (en) | 2012-02-27 | 2012-02-27 | Automatic locking device for hydraulic cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202531543U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103615632A (en) * | 2013-11-20 | 2014-03-05 | 中国矿业大学 | Annular self-locking type hydraulic leg |
-
2012
- 2012-02-27 CN CN2012200655508U patent/CN202531543U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103615632A (en) * | 2013-11-20 | 2014-03-05 | 中国矿业大学 | Annular self-locking type hydraulic leg |
| CN103615632B (en) * | 2013-11-20 | 2016-01-20 | 中国矿业大学 | A kind of annular self-locking type hydraulic supporting leg |
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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: 20121114 Termination date: 20150227 |
|
| EXPY | Termination of patent right or utility model |