CN218151764U - Hydraulic cylinder capable of exhausting after full stroke - Google Patents
Hydraulic cylinder capable of exhausting after full stroke Download PDFInfo
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- CN218151764U CN218151764U CN202221995282.XU CN202221995282U CN218151764U CN 218151764 U CN218151764 U CN 218151764U CN 202221995282 U CN202221995282 U CN 202221995282U CN 218151764 U CN218151764 U CN 218151764U
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Abstract
The utility model discloses a but carminative hydraulic cylinder behind full stroke, including piston rod, uide bushing, cylinder body, ejector pin case, spring, steel ball, piston, hydro-cylinder seal assembly, the utility model discloses get into there is the pole chamber when hydraulic oil, promote the piston and move right, right side when the piston motion, ejector pin case is strikeed this moment, and the case is opened, and hydraulic oil passes through oil duct A, and oil duct C and ejector pin case get into no pole chamber. Therefore, the two cavities of the oil cylinder are communicated, the oil is circularly exhausted and supplemented, the use requirement is met in function, and the structure is simple.
Description
Technical Field
The utility model relates to a hydro-cylinder field, in particular to but carminative hydraulic cylinder behind full stroke.
Background
In the technical field of oil cylinders at present, synchronization is realized by using the same volume of two same oil cylinders, and oil leakage and other problems of hydraulic oil exist, so that an oil supplementing oil way is often needed. Based on the hydraulic oil cylinder capable of exhausting after the full stroke, the invention designs the hydraulic oil cylinder which can exhaust after the full stroke, and the two cavities are automatically communicated after the full stroke to realize active oil supplement each time, thereby solving the problems.
SUMMERY OF THE UTILITY MODEL
A primary object of the present invention is to provide a hydraulic cylinder with exhaust function after full stroke, which can realize the automatic exhaust function after full stroke of the cylinder.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a but carminative hydraulic cylinder behind full stroke, includes the piston rod, the uide bushing, the cylinder body, the ejector pin case, the steel ball, piston and hydro-cylinder seal assembly, two hydraulic fluid ports have been seted up to the fixed on the cylinder body, and the one end fixed mounting of this cylinder body has the uide bushing, and sliding connection has the piston rod in this uide bushing, and the one end fixedly connected with piston in the cylinder body is arranged in to this piston rod, and fixed exhaust oil supply groove and the rodless chamber of running through the piston of having seted up on this piston, this exhaust oil supply groove and rodless chamber communicate each other, and slidable mounting has the ejector pin case in this exhaust oil supply groove, and slidable mounting has the steel ball in this rodless chamber.
Furthermore, one end of the piston rod connected with the piston penetrates through the piston and is fixedly connected with a limiting jacking rod.
Furthermore, the piston rod is a single-rod or double-rod on the cylinder body.
Furthermore, the ejector rod valve core is designed on the piston or is in an external one-way valve structure.
Furthermore, the ejector rod valve core comprises a movable rod, a first sealing shaft sleeve, a second sealing shaft sleeve and a spring, the movable rod is slidably mounted in the exhaust oil supplementing groove, the outer ring surfaces of two ends of the movable rod are respectively slidably sleeved with the first sealing shaft sleeve and fixedly mounted with the second sealing shaft sleeve, and the movable rod between the first sealing shaft sleeve and the second sealing shaft sleeve is slidably sleeved with the spring and the second sealing shaft sleeve.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses simple structure can realize self-bleeding function behind the full stroke of hydro-cylinder.
Drawings
FIG. 1 is a schematic view of the structure of the present invention;
fig. 2 is an enlarged view of the position a of the present invention.
Reference numerals
1. A piston rod; 2. a guide sleeve; 3. a cylinder body; 4. a mandril valve core; 5. a spring; 6. steel balls; a piston; 8. a cylinder seal assembly; 9. an oil port; 10. an exhaust oil supplementing groove; 11. a rodless cavity; 12. a movable rod; 13. a first seal bushing; 14. and a second seal bushing.
Detailed Description
The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, and the protection scope of the present invention can be defined more clearly and clearly.
Referring to fig. 1-2, a hydraulic cylinder capable of exhausting after a full stroke includes a piston rod 1, a guide sleeve 2, a cylinder body 3, a push rod valve core 4, a steel ball 6, a piston 7 and a cylinder seal assembly 8, wherein two oil ports 9 are fixedly provided on the cylinder body 3, the guide sleeve 2 is fixedly mounted at one end of the cylinder body 3, the piston rod 1 is slidably connected in the guide sleeve 2, one end of the piston rod 1 disposed in the cylinder body 3 is fixedly connected with the piston 7, an exhaust oil supplementing groove 10 and a rodless cavity 11 penetrating through the piston 7 are fixedly provided on the piston 7, the exhaust oil supplementing groove 10 is communicated with the rodless cavity 11, the push rod valve core 4 is slidably mounted in the exhaust oil supplementing groove 10, and the steel ball 6 is slidably mounted in the rodless cavity 11.
One end of the piston rod 1 connected with the piston 7 penetrates through the piston 7 and is fixedly connected with a limiting jacking rod.
The piston rod 1 is a single-rod or double-rod on the cylinder body 3.
The mandril valve core 4 can be designed on the piston 7, and the mandril valve core 4 can also be in an external one-way valve structure.
The mandril valve core 4 comprises a movable rod 12, a first sealing shaft sleeve 13, a second sealing shaft sleeve 14 and a spring 5, wherein the movable rod 12 is slidably mounted in the exhaust oil supplementing groove 10, the outer annular surfaces of two ends of the movable rod 12 are respectively slidably sleeved with the first sealing shaft sleeve 13 and fixedly mounted with the second sealing shaft sleeve 14, the movable rod 12 between the first sealing shaft sleeve 13 and the second sealing shaft sleeve 14 is slidably sleeved with the spring 5, and the second sealing shaft sleeve 14.
And an oil cylinder sealing assembly 8 is fixedly arranged on the outer annular surface of the piston.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiment, but all equivalent modifications or changes made by those skilled in the art according to the present invention should be included in the protection scope of the claims.
Claims (5)
1. The utility model provides a but carminative hydraulic cylinder behind full stroke, includes piston rod (1), uide bushing (2), cylinder body (3), ejector pin case (4), steel ball (6), piston (7) and hydro-cylinder seal assembly (8), its characterized in that: two hydraulic fluid ports (9) have been fixed to have seted up on cylinder body (3), the one end fixed mounting of this cylinder body (3) has uide bushing (2), sliding connection has piston rod (1) in this uide bushing (2), one end fixedly connected with piston (7) in cylinder body (3) are arranged in this piston rod (1), fixed exhaust oil supply groove (10) and the rodless chamber (11) of running through piston (7) of seting up on this piston (7), this exhaust oil supply groove (10) and rodless chamber (11) communicate each other, sliding mounting has ejector pin case (4) in this exhaust oil supply groove (10), sliding mounting has steel ball (6) in this rodless chamber (11).
2. A hydraulic cylinder according to claim 1, wherein the cylinder is capable of being vented after full stroke: one end of the piston rod (1) connected with the piston (7) penetrates through the piston (7) and is fixedly connected with a limiting ejector rod.
3. A hydraulic cylinder as claimed in claim 1 which is ventable after full stroke, wherein: the piston rod (1) is a single-outlet rod or a double-outlet rod on the cylinder body (3).
4. A hydraulic cylinder according to claim 1, wherein the cylinder is capable of being vented after full stroke: the mandril valve core (4) is arranged on the piston (7) or is in an external one-way valve structure.
5. A hydraulic cylinder according to claim 1, wherein the cylinder is capable of being vented after full stroke: the ejector rod valve core (4) comprises a movable rod (12), a first sealing shaft sleeve (13), a second sealing shaft sleeve (14) and a spring (5), wherein the movable rod (12) is slidably mounted in the exhaust oil supplementing groove (10), the outer annular surfaces of two ends of the movable rod (12) are respectively slidably sleeved with the first sealing shaft sleeve (13) and fixedly provided with the second sealing shaft sleeve (14), the movable rod (12) between the first sealing shaft sleeve (13) and the second sealing shaft sleeve (14) is slidably sleeved with the spring (5), and the second sealing shaft sleeve (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221995282.XU CN218151764U (en) | 2022-07-29 | 2022-07-29 | Hydraulic cylinder capable of exhausting after full stroke |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221995282.XU CN218151764U (en) | 2022-07-29 | 2022-07-29 | Hydraulic cylinder capable of exhausting after full stroke |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218151764U true CN218151764U (en) | 2022-12-27 |
Family
ID=84598634
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221995282.XU Active CN218151764U (en) | 2022-07-29 | 2022-07-29 | Hydraulic cylinder capable of exhausting after full stroke |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218151764U (en) |
-
2022
- 2022-07-29 CN CN202221995282.XU patent/CN218151764U/en active Active
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