CN212225662U - Multi-stage oil cylinder convenient to maintain - Google Patents
Multi-stage oil cylinder convenient to maintain Download PDFInfo
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- CN212225662U CN212225662U CN202020762120.6U CN202020762120U CN212225662U CN 212225662 U CN212225662 U CN 212225662U CN 202020762120 U CN202020762120 U CN 202020762120U CN 212225662 U CN212225662 U CN 212225662U
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- hydraulic sleeve
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- sleeve
- maintain
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Abstract
The utility model discloses a multistage oil cylinder convenient to maintain, comprising a base plate, mounting panel and gas pocket, fixed surface has first hydraulic sleeve on the bottom plate, first hydraulic sleeve upper end is fixed with the mounting panel, the inside second hydraulic sleeve that is provided with of first hydraulic sleeve, second hydraulic sleeve upper end runs through the mounting panel and extends to first hydraulic sleeve upside, be provided with third hydraulic sleeve in the second hydraulic sleeve, third hydraulic sleeve upper end extends to second hydraulic sleeve upside, first hydraulic sleeve, second hydraulic sleeve, both ends are all seted up porosely around the third hydraulic sleeve top, be located the downthehole backup pad that all is provided with of gas at first hydraulic sleeve top, a side surface that the backup pad was kept away from each other all is fixed with the pipe, the one end that the spring was kept away from each other is fixed with the guide post, the one end that the guide post annular was kept away from all is fixed with the protective cover. The utility model discloses be convenient for use under depositing and special environment, be convenient for maintain, extension fixture life, protection nature is good.
Description
Technical Field
The utility model relates to a hydro-cylinder field especially relates to a multistage hydro-cylinder convenient to maintain.
Background
The telescopic hydraulic cylinder is also called a multi-stage cylinder. The piston cylinder is formed by sleeving two-stage or multi-stage piston cylinders and mainly comprises a cylinder cover, a cylinder barrel, a sleeve, a piston and other parts. The two ends of the cylinder barrel are provided with an oil inlet and an oil outlet A and an oil outlet B. When the oil is fed from the port A and returned from the port B, the first-stage piston with larger effective acting area is pushed to move, and then the second-stage piston with smaller effective acting area is pushed to move. The piston with large effective acting area has low moving speed and large thrust because the flow entering the port A is unchanged, and conversely, the piston has high moving speed and small thrust. If the oil enters the port B and returns to the port A, the secondary piston firstly returns to the end point, and then the primary piston returns.
When the existing multi-stage oil cylinder is not used, an exhaust hole on the outer side of a sleeve is in an exposed state, when the existing multi-stage oil cylinder is used in some special environments or stored, exhaust is easy to block, the existing multi-stage oil cylinder works under the blocking condition, and cylinder explosion is easy to occur.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art and providing a multi-stage oil cylinder convenient to maintain.
In order to achieve the above purpose, the utility model adopts the following technical scheme: a multi-stage oil cylinder convenient for maintenance comprises a bottom plate, a mounting plate and an air hole, wherein a first hydraulic sleeve is fixed on the upper surface of the bottom plate, the upper end of the first hydraulic sleeve is fixed with a mounting plate, a second hydraulic sleeve is arranged in the first hydraulic sleeve, the upper end of the second hydraulic sleeve penetrates through the mounting plate and extends to the upper side of the first hydraulic sleeve, a third hydraulic sleeve is arranged in the second hydraulic sleeve, the upper end of the third hydraulic sleeve extends to the upper side of the second hydraulic sleeve, air holes are respectively arranged at the front end and the rear end of the top of the first hydraulic sleeve, the second hydraulic sleeve and the third hydraulic sleeve, a support plate is respectively arranged in the air holes at the top of the first hydraulic sleeve, the surfaces of the sides of the supporting plates, which are far away from each other, are fixed with round pipes, springs are fixed in the round pipes, the end that the spring kept away from each other is fixed with the guide post, the one end that the guide post annular was kept away from all is fixed with the protective cover.
Preferably, the inside bottom of first hydraulic sleeve is provided with into oil pipe, it goes outside oil pump to be connected to advance oil pipe.
Preferably, the cross section of the guide post is T-shaped, and a retainer ring is fixed at one end of the spring far away from the circular tube.
Preferably, be located and all seted up the thread groove in the gas hole that is located first hydraulic sleeve top, the outer annular side processing of protective cover has the screw thread, the protective cover passes through screw thread and thread groove with first hydraulic sleeve and can dismantle the connection.
Preferably, a convex block is fixed on the surface of one side, away from the support plate, of the protective cover, and the convex block is processed with anti-skid lines.
The utility model has the advantages that: through rotating the protective cover, make the protective cover break away from the gas pocket, the spring kick-backs simultaneously and ejecting with guide post and protective cover to make gas pocket and first hydraulic sleeve and outside intercommunication, and then make first hydraulic sleeve at the during operation, inside gas can be discharged through the gas pocket.
The utility model discloses be convenient for use under depositing and special environment, be convenient for maintain, extension fixture life, protection nature is good.
Drawings
Fig. 1 is a front view of the multi-stage oil cylinder convenient for maintenance provided by the utility model.
Fig. 2 is the utility model provides a sectional view is seen from main view to first hydraulic sleeve among multistage cylinder convenient to maintain.
Fig. 3 is an enlarged schematic view of a portion a in fig. 2.
Fig. 4 is a side view of the supporting plate in the multi-stage cylinder convenient for maintenance provided by the utility model.
Reference numbers in the figures: the hydraulic guide column comprises a base plate 1, a first hydraulic sleeve 2, a mounting plate 4, a second hydraulic sleeve 5, a third hydraulic sleeve 6, an oil inlet pipe 7, a circular pipe 8, a support plate 9, an air hole 10, a spring 11, a protective cover 12 and a guide column 13.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Referring to fig. 1-4, a multi-stage oil cylinder convenient for maintenance comprises a bottom plate 1, a mounting plate 4 and air holes 10, wherein a first hydraulic sleeve 2 is fixed on the upper surface of the bottom plate 1, the mounting plate 4 is fixed on the upper end of the first hydraulic sleeve 2, a second hydraulic sleeve 5 is arranged inside the first hydraulic sleeve 2, the upper end of the second hydraulic sleeve 5 penetrates through the mounting plate 4 and extends to the upper side of the first hydraulic sleeve 2, a third hydraulic sleeve 6 is arranged in the second hydraulic sleeve 5, the upper end of the third hydraulic sleeve 6 extends to the upper side of the second hydraulic sleeve 5, the front end and the rear end of the tops of the first hydraulic sleeve 2, the second hydraulic sleeve 5 and the third hydraulic sleeve 6 are respectively provided with the air holes 10, a support plate 9 is arranged in the air holes 10 at the top of the first hydraulic sleeve 2, a circular tube 8 is fixed on the surface of one side where the support plates 9 are far away from each other, a spring 11 is fixed in the circular tube 8, a, and a protective cover 12 is fixed at one end of the guide column 13 which is far away from the ring.
The inside bottom of first hydraulic sleeve 2 is provided with into oil pipe 7, it is connected to go outside oil pump to advance oil pipe 7, be convenient for 2 fuel supplies of first hydraulic sleeve, the cross section of guide post 13 is the T type, the one end of the spring 11 that 8 pipe kept away from is fixed with the retaining ring, avoid guide post 13 to break away from pipe 8, the thread groove has all been seted up in the gas pocket 10 that is located 2 tops of first hydraulic sleeve, the outer annular side processing of protective cover 12 is threaded, protective cover 12 can be dismantled through screw thread and thread groove with first hydraulic sleeve 2 and be connected, a side fixed surface that backup pad 9 was kept away from to protective cover 12 has the lug, lug performance processing has anti-skidding line, be convenient for twist protective cover 12.
The working principle is as follows: the device is when using, through twisting the protruding protective cover 12 rotation of driving of lug, and protective cover 12 breaks away from gas pocket 10, spring 11 kick-backs simultaneously and ejecting guide post 13 and protective cover 12, thereby make gas pocket 10 and first hydraulic sleeve 2 and outside intercommunication, and then make first hydraulic sleeve 2 at the during operation, inside gas can be discharged through gas pocket 10, when depositing, again with protective cover 12 screw in gas pocket 10 in, guide post 13 compression spring 11 simultaneously, thereby make gas pocket 10 blockked up, and then avoid the filth to get into in first hydraulic sleeve 2.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (5)
1. The multi-stage oil cylinder convenient to maintain comprises a bottom plate (1), a mounting plate (4) and air holes (10), and is characterized in that a first hydraulic sleeve (2) is fixed on the upper surface of the bottom plate (1), the mounting plate (4) is fixed at the upper end of the first hydraulic sleeve (2), a second hydraulic sleeve (5) is arranged inside the first hydraulic sleeve (2), the upper end of the second hydraulic sleeve (5) penetrates through the mounting plate (4) and extends to the upper side of the first hydraulic sleeve (2), a third hydraulic sleeve (6) is arranged in the second hydraulic sleeve (5), the upper end of the third hydraulic sleeve (6) extends to the upper side of the second hydraulic sleeve (5), the air holes (10) are formed in the front end and the rear end of the tops of the first hydraulic sleeve (2), the support plate (9) is arranged in the air holes (10) formed in the tops of the first hydraulic sleeve (2), one side surface that backup pad (9) kept away from each other all is fixed with pipe (8), all be fixed with spring (11) in pipe (8), the one end that spring (11) kept away from each other is fixed with guide post (13), the one end that guide post (13) annular was kept away from all is fixed with protective cover (12).
2. The multi-stage oil cylinder convenient to maintain as claimed in claim 1, characterized in that an oil inlet pipe (7) is arranged at the bottom end inside the first hydraulic sleeve (2), and the oil inlet pipe (7) is connected with an external oil pump.
3. The multi-stage oil cylinder convenient to maintain as claimed in claim 1, is characterized in that the cross section of the guide post (13) is T-shaped, and a retainer ring is fixed at one end of the spring (11) away from the circular tube (8).
4. The multi-stage oil cylinder convenient to maintain as claimed in claim 1, wherein thread grooves are formed in the air holes (10) located at the top of the first hydraulic sleeve (2), threads are machined on the outer annular side face of the protecting cover (12), and the protecting cover (12) is detachably connected with the first hydraulic sleeve (2) through the threads and the thread grooves.
5. The multi-stage oil cylinder convenient for maintenance according to claim 4, characterized in that a convex block is fixed on the surface of one side of the protecting cover (12) far away from the supporting plate (9), and the convex block is processed with anti-skid lines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020762120.6U CN212225662U (en) | 2020-05-11 | 2020-05-11 | Multi-stage oil cylinder convenient to maintain |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020762120.6U CN212225662U (en) | 2020-05-11 | 2020-05-11 | Multi-stage oil cylinder convenient to maintain |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212225662U true CN212225662U (en) | 2020-12-25 |
Family
ID=73926195
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020762120.6U Active CN212225662U (en) | 2020-05-11 | 2020-05-11 | Multi-stage oil cylinder convenient to maintain |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212225662U (en) |
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2020
- 2020-05-11 CN CN202020762120.6U patent/CN212225662U/en active Active
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