CN221097050U - Hydraulic stretcher with built-in air release valve - Google Patents
Hydraulic stretcher with built-in air release valve Download PDFInfo
- Publication number
- CN221097050U CN221097050U CN202323270034.6U CN202323270034U CN221097050U CN 221097050 U CN221097050 U CN 221097050U CN 202323270034 U CN202323270034 U CN 202323270034U CN 221097050 U CN221097050 U CN 221097050U
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- Prior art keywords
- valve
- air release
- piston
- cylinder body
- release valve
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- 238000007789 sealing Methods 0.000 claims description 30
- 230000007704 transition Effects 0.000 claims description 13
- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- 239000003921 oil Substances 0.000 description 18
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 239000010720 hydraulic oil Substances 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
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- Fluid-Pressure Circuits (AREA)
Abstract
The utility model relates to the technical field of hydraulic pressure, and particularly discloses a hydraulic stretcher with a built-in air release valve, which comprises an oil cylinder body, a piston, a stretching head, the air release valve, a spring, a connecting plate and a screw, wherein the piston and the connecting plate are fixedly connected through the screw, the piston and the connecting plate are positioned in the oil cylinder body, the stretching head is arranged at the upper end of the oil cylinder body, one end of the stretching head is positioned in the oil cylinder body, the spring is arranged between the connecting plate and the piston, and the air release valve is arranged in the oil cylinder body and positioned between the piston and the connecting plate. The structure of the hydraulic stretcher is optimized, and the position of the air release valve is changed, so that the working environment of the air release valve is not contacted with the outside, and the problems that foreign matters enter and the stretcher cannot be used and damaged are avoided.
Description
Technical Field
The utility model relates to the technical field of hydraulic pressure, in particular to a hydraulic stretcher with a built-in air release valve.
Background
Currently, hydraulic stretcher prevention out-of-travel use may take as follows: the method for destroying the sealing element, removing the sealing element and adding the air release valve on the stretcher has the advantages of avoiding the destruction of the sealing element of the stretcher or the need of reinstallation, and is more convenient.
However, in the prior art, the air release valve of the stretcher is mostly arranged between the cover plate and the piston, and the cover plate is open, so that iron filings and sand in a construction site enter, the valve rod of the air release valve cannot return, and the stretcher cannot be used.
Disclosure of utility model
The utility model aims to provide a hydraulic stretcher with a built-in air release valve, and aims to solve the technical problem that iron filings and sand in the prior art enter a cover plate, so that a valve rod of the air release valve cannot return, and the stretcher cannot be used.
In order to achieve the above purpose, the hydraulic stretcher with the built-in air release valve comprises an oil cylinder body, a piston, a stretching head, the air release valve, a spring, a connecting plate and a screw, wherein the piston and the connecting plate are fixedly connected through the screw, the piston and the connecting plate are positioned in the oil cylinder body, the stretching head is arranged at the upper end of the oil cylinder body, one end of the stretching head is positioned in the oil cylinder body, the spring is arranged between the connecting plate and the piston, and the air release valve is arranged in the oil cylinder body and positioned between the piston and the connecting plate.
The hydraulic stretcher with the built-in air release valve further comprises a first sealing element and a second sealing element, wherein the first sealing element and the second sealing element are respectively arranged in the oil cylinder body and are respectively sleeved on the outer surface wall of the piston.
The hydraulic stretcher with the built-in air release valve further comprises a transition joint and a quick joint, wherein the transition joint is communicated with the oil cylinder body and is positioned on the outer surface wall of the oil cylinder body, and the quick joint is communicated with the transition joint and is positioned at one end of the transition joint.
The air release valve comprises a valve body, a valve rod, a steel ball and a sealing ring, wherein the valve body is arranged in the oil cylinder, the valve rod penetrates through the valve body, the steel ball is arranged at the upper end of the valve body, the sealing ring is embedded in the valve body, and the sealing ring is located on the inner wall of the valve body.
The hydraulic stretcher with the built-in air release valve has the beneficial effects that: the structure of the hydraulic stretcher is optimized, the position of the air release valve is changed, the working environment of the air release valve is not contacted with the outside, and the problems that foreign matters enter and the stretcher cannot be used and damaged are avoided.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic view of a hydraulic tensioner with a built-in bleed valve according to the present utility model.
Fig. 2 is a schematic structural view of the purge valve of the present utility model.
1-Hydro-cylinder body, 2-piston, 3-stretching head, 4-bleed valve, 5-spring, 6-connecting plate, 7-screw, 8-first sealing member, 9-second sealing member, 10-transition joint, 11-quick-operation joint, 12-valve body, 13-valve rod, 14-steel ball, 15-sealing ring.
Detailed Description
Referring to fig. 1 and 2, the utility model provides a hydraulic stretcher with a built-in air release valve 4, which comprises an oil cylinder body 1, a piston 2, a stretching head 3, an air release valve 4, a spring 5, a connecting plate 6 and a screw 7, wherein the piston 2 and the connecting plate 6 are fixedly connected through the screw 7, the piston 2 and the connecting plate 6 are positioned in the oil cylinder body 1, the stretching head 3 is arranged at the upper end of the oil cylinder body 1, one end of the stretching head 3 is positioned in the oil cylinder body 1, the spring 5 is arranged between the connecting plate 6 and the piston 2, and the air release valve 4 is arranged in the oil cylinder body 1 and between the piston 2 and the connecting plate 6.
Further, the hydraulic stretcher with the built-in air release valve 4 further comprises a first sealing element 8 and a second sealing element 9, wherein the first sealing element 8 and the second sealing element 9 are respectively arranged in the oil cylinder body 1 and are respectively sleeved on the outer surface wall of the piston 2.
Further, the hydraulic stretcher with the built-in air release valve 4 further comprises a transition joint 10 and a quick joint 11, wherein the transition joint 10 is communicated with the oil cylinder body 1 and is positioned on the outer surface wall of the oil cylinder body 1, and the quick joint 11 is communicated with the transition joint 10 and is positioned at one end of the transition joint 10.
Further, the air release valve 4 includes a valve body 12, a valve rod 13, a steel ball 14 and a sealing ring 15, the valve body 12 is disposed in the oil cylinder, the valve rod 13 penetrates through the valve body 12, the steel ball 14 is disposed at the upper end of the valve body 12, the sealing ring 15 is embedded in the valve body 12, and the sealing ring 15 is located on the inner wall of the valve body 12.
In this embodiment, hydraulic oil flows into the space between the cylinder body 1 and the piston 2 through the quick connector 11 and the transition connector 10, the piston 2 is pushed to move upwards through hydraulic oil pressure, the piston 2 is connected with the connecting plate 6 through the screw 7, the connecting plate 6 moves upwards along with the piston 2 to contact with the maximum travel of the air release valve 4, if the hydraulic oil is continuously introduced, the connecting plate 6 presses the valve rod 13 to push the steel ball 14 away from the valve body 12, the sealing environment of the hydraulic stretcher is damaged, the ultrahigh pressure hydraulic oil is discharged, the connecting plate 6 drives the piston 2 to move downwards under the pushing of the spring 5, the problem that the first sealing element 8 and the second sealing element 9 are separated is avoided, the structure of the hydraulic stretcher is optimized, the position of the air release valve 4 is changed, the working environment of the air release valve 4 is not contacted with the outside, the problem that foreign matters cannot be used and damaged by the stretcher is avoided, meanwhile, the bulge cover plate is not needed to be replaced according to the practical requirement of the stretching of the air release valve 3, and the stretching range of the stretching device is increased.
The above disclosure is only a preferred embodiment of the present utility model, and it should be understood that the scope of the utility model is not limited thereto, and those skilled in the art will appreciate that all or part of the procedures described above can be performed according to the equivalent changes of the claims, and still fall within the scope of the present utility model.
Claims (4)
1. A hydraulic stretcher with an internal air release valve is characterized in that,
Including hydro-cylinder body, piston, stretching head, bleed valve, spring, connecting plate and screw, the piston with the connecting plate passes through screw fixed connection, just the piston with the connecting plate is located the inside of hydro-cylinder body, stretching head set up in the upper end of hydro-cylinder body, just the one end of stretching head is located the inside of hydro-cylinder body, the spring set up in the connecting plate with between the piston, the bleed valve set up in the inside of hydro-cylinder body, and be located the piston with between the connecting plate.
2. A hydraulic tensioner with built-in bleed valve as in claim 1, wherein,
The hydraulic stretcher with the built-in air release valve further comprises a first sealing piece and a second sealing piece, wherein the first sealing piece and the second sealing piece are respectively arranged in the oil cylinder body and are respectively sleeved on the outer surface wall of the piston.
3. A hydraulic tensioner with built-in bleed valve as in claim 2, wherein,
The hydraulic stretcher with the built-in air release valve further comprises a transition joint and a quick joint, wherein the transition joint is communicated with the oil cylinder body and is positioned on the outer surface wall of the oil cylinder body, and the quick joint is communicated with the transition joint and is positioned at one end of the transition joint.
4. A hydraulic tensioner with built-in bleed valve as in claim 3, wherein,
The air release valve comprises a valve body, a valve rod, a steel ball and a sealing ring, wherein the valve body is arranged in the oil cylinder, the valve rod penetrates through the valve body, the steel ball is arranged at the upper end of the valve body, the sealing ring is embedded in the valve body, and the sealing ring is located on the inner wall of the valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323270034.6U CN221097050U (en) | 2023-12-01 | 2023-12-01 | Hydraulic stretcher with built-in air release valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323270034.6U CN221097050U (en) | 2023-12-01 | 2023-12-01 | Hydraulic stretcher with built-in air release valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221097050U true CN221097050U (en) | 2024-06-07 |
Family
ID=91312944
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323270034.6U Active CN221097050U (en) | 2023-12-01 | 2023-12-01 | Hydraulic stretcher with built-in air release valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221097050U (en) |
-
2023
- 2023-12-01 CN CN202323270034.6U patent/CN221097050U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant |