CN211951025U - Valve assembly for hydraulic cylinder - Google Patents
Valve assembly for hydraulic cylinder Download PDFInfo
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- CN211951025U CN211951025U CN202020372069.8U CN202020372069U CN211951025U CN 211951025 U CN211951025 U CN 211951025U CN 202020372069 U CN202020372069 U CN 202020372069U CN 211951025 U CN211951025 U CN 211951025U
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- valve seat
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- circular groove
- hydraulic cylinder
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Abstract
The utility model provides a valve module for pneumatic cylinder, which belongs to the technical field of hydraulic elements, a valve seat is provided with a slot, an oil circuit A and an oil circuit B along the top surface of the valve seat, the oil circuit A and the oil circuit B are arranged at the left side and the right side of the slot, an oil circuit C communicated with the oil circuit A and the slot and an oil circuit D communicated with the oil circuit A are arranged along the left side of the valve seat, an oil circuit E communicated with the oil circuit B and the slot is arranged along the right side of the valve seat, a first circular groove is formed along the inner concave side of the rear side surface of the valve seat, a second circular groove concentric with the first circular groove is formed along the inner concave side of the first circular groove, an oil circuit F communicated with the oil circuit D is arranged; and the valve core is inserted on the valve seat through the slot. The utility model has the advantages of convenient assembly.
Description
Technical Field
The utility model belongs to the technical field of hydraulic component, a valve module for pneumatic cylinder is related to.
Background
In the hydraulic circuit, some hydraulic cylinders are integrated with the valve assembly, for example, a chinese patent No. 201620180834.X discloses a lifting hydraulic cylinder for a horizontal garbage station, comprising: the cylinder tail is hermetically connected with one end of the cylinder barrel, and a piston rod with a piston is arranged in the oil cylinder; the other end of the cylinder barrel is provided with a cylinder head, and the piston rod penetrates through the cylinder head in a sealing manner; a balance valve assembly is arranged outside the cylinder tail, a first oil port is arranged on the balance valve assembly, the first oil port penetrates through the cylinder tail through a first oil duct and is communicated with the first cavity, and a balance valve is arranged on the first oil duct; the balance valve assembly is characterized in that the other end of the cylinder barrel is provided with an oil hole, the balance valve assembly is further provided with a second oil hole, one end of a connecting pipe is communicated with the second containing cavity through the oil hole, and the other end of the connecting pipe is communicated with the second oil hole.
However, the valve assembly needs an external pipeline to be matched with the hydraulic cylinder for use, and the assembly of the valve assembly is complex.
Disclosure of Invention
The utility model aims at having the above-mentioned problem to current technique, provided a valve module for pneumatic cylinder convenient to equipment.
The purpose of the utility model can be realized by the following technical proposal: a valve assembly for a hydraulic cylinder, comprising:
the oil way A and the oil way B are arranged on the left side and the right side of the slot, an oil way C communicated with the oil way A and the slot and an oil way D communicated with the oil way A are arranged on the left side of the valve seat, an oil way E communicated with the oil way B and the slot and the right side of the valve seat are arranged on the right side of the valve seat, a first circular groove is formed in the back side of the valve seat, a second circular groove concentric with the first circular groove is formed in the first circular groove in a concave mode, an oil way F communicated with the oil way D is arranged in the first circular groove, and an oil way G communicated with the slot and the slot is arranged in the second circular groove;
and the valve core is inserted on the valve seat through the slot.
As a further improvement of the utility model, the spliced pole that cavity set up has still been set firmly to the disk seat front side, and the disk seat is stretched out at both ends about the spliced pole.
As a further improvement of the utility model, still be equipped with the locating pin between spliced pole and the disk seat, both ends imbed spliced pole, disk seat respectively around the locating pin.
As a further improvement, the connecting column is provided with a positioning plane attached to the valve seat, and the front end of the positioning pin is embedded into the positioning plane.
As a further improvement of the utility model, the locating pin is the split pin, around the locating pin both ends respectively with spliced pole, disk seat interference fit.
As a further improvement, the retractable oil port of the communicating oil circuit a and the extending oil port of the communicating oil circuit B are arranged along the front side of the valve seat.
As a further improvement, the extending oil port and the contracting oil port are both located above the connecting column.
As a further improvement of the present invention, the inner diameter of the oil passage F is smaller than the oil passage D, and the oil passage F is provided in plurality.
Based on the technical scheme, the embodiment of the utility model provides a can produce following technological effect at least:
1. when the valve component is matched with a hydraulic cylinder for use, the first circular groove of the valve seat can be used for embedding the hollow piston rod, the end part of the hollow piston rod is fixedly connected with the first circular groove in a welding mode, the second circular groove can be used for embedding the hollow oil pipe in the piston rod, so that the oil way D of the valve seat is communicated with the gap between the piston rod and the oil pipe, the oil way F of the valve seat is communicated with the oil pipe, and the valve core can control two ways of oil liquid entering the hydraulic cylinder. When the valve component is fixedly connected with the hydraulic cylinder for assembly, the first circular groove and the second circular groove can be matched with each other to improve the sealing effect between the valve seat and the hydraulic cylinder except for respectively playing a role in positioning. Moreover, the valve seat is simple in structure and convenient to process.
2. Through setting up hollow spliced pole for the valve seat links firmly the back with the piston rod of pneumatic cylinder, and the spare part accessible spliced pole of treating work links to each other in order to realize stretching out and drawing back with the piston rod of pneumatic cylinder, and this valve module can regard as the connecting piece of pneumatic cylinder to use promptly.
3. Through setting up the locating pin for when the spliced pole welded fastening is to the disk seat, the position of locatable spliced pole simplifies welding process, and spliced pole welding quality is better.
Drawings
Fig. 1 is a perspective view of a preferred embodiment of the present invention.
Fig. 2 is a perspective view of another angle of a preferred embodiment of the present invention.
Fig. 3 is a cross-sectional view of fig. 2.
Fig. 4 is a cross-sectional view at another angle of fig. 2.
In the figure, 100, valve seat; 110. a slot; 120. an oil path A; 130. an oil passage B; 140. an oil path C; 150. an oil path D; 160. an oil passage E; 170. a first circular groove; 180. a second circular groove; 190. an oil path F; 1000. an oil path G; 1110. a contraction oil port; 1120. an oil outlet is extended; 200. a valve core; 300. connecting columns; 310. positioning a plane; 400. and a positioning pin.
Detailed Description
The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.
As shown in fig. 1 to 4, the present valve assembly for a hydraulic cylinder includes:
the oil valve comprises a valve seat 100, wherein the valve seat 100 is rectangular, a slot 110, an oil path A120 and an oil path B130 are formed along the top surface of the valve seat 100, the oil path A120 and the oil path B130 are arranged on the left side and the right side of the slot 110, an oil path C140 communicated with the oil path A120 and an oil path D150 communicated with the oil path A120 are formed along the left side of the valve seat 100, an oil path E160 communicated with the oil path B130 and the slot 110 is formed along the right side of the valve seat 100, a first circular groove 170 is formed in the rear side surface of the valve seat 100, a second circular groove 180 concentric with the first circular groove 170 is formed in the first circular groove 170, an oil path F190 communicated with the oil path D150 is formed in the first circular groove 170, and an oil path G1000 communicated with;
and a valve cartridge 200 inserted into the valve seat 100 through the insertion groove 110.
When the valve component is matched with a hydraulic cylinder for use, the first circular groove 170 of the valve seat 100 can be used for embedding a hollow piston rod, the end part of the hollow piston rod is fixedly connected with the first circular groove 170 in a welding mode, the second circular groove 180 can be used for embedding a hollow oil pipe in the piston rod, so that the oil way D150 of the valve seat 100 is communicated with a gap between the piston rod and the oil pipe, the oil way F190 of the valve seat 100 is communicated with the oil pipe, and the valve core 200 can control two ways of oil liquid entering the hydraulic cylinder. When the valve assembly is fixedly connected with the hydraulic cylinder, the first circular groove 170 and the second circular groove 180 can be matched with each other to improve the sealing effect between the valve seat 100 and the hydraulic cylinder besides the functions of positioning respectively. Moreover, the valve seat 100 is simple in structure and convenient to machine.
The excessive opening of the valve seat 100 after the oil passage is processed can be sealed by a plug.
The front side of the valve seat 100 is fixedly connected with a hollow connecting column 300 in a welding mode, and the left end and the right end of the connecting column 300 extend out of the valve seat 100. Through setting up hollow spliced pole 300 for after valve seat 100 and the piston rod of pneumatic cylinder linked firmly, the spare part accessible spliced pole 300 of treating work links to each other in order to realize flexible with the piston rod of pneumatic cylinder, and this valve module can regard as the connecting piece of pneumatic cylinder to use promptly.
A positioning pin 400 is further arranged between the connecting column 300 and the valve seat 100, and the front end and the rear end of the positioning pin 400 are respectively embedded into the connecting column 300 and the valve seat 100. Through setting up locating pin 400 for when the welding of spliced pole 300 links firmly to disk seat 100, can fix a position spliced pole 300's position, simplify welding process, and spliced pole 300 welding quality is better.
In order to further improve the positioning effect when the connecting column 300 is fixedly connected with the valve seat 100 by welding, the connecting column 300 is provided with a positioning plane 310 attached to the valve seat 100, the front end of the positioning pin 400 is embedded into the positioning plane 310, and the positioning plane 310 can be matched with the positioning pin 400 to position the welding position of the connecting column 300.
Wherein, for the installation of convenience locating pin 400, locating pin 400 is the split pin, and both ends are respectively with spliced pole 300, 100 interference fit of disk seat around locating pin 400, and locating pin 400 installation is reliable, and the difficult circumferential direction of spliced pole 300.
In order to facilitate the installation and debugging of the valve core 200, a contraction oil port 1110 for communicating the oil path a120 and an extension oil port 1120 for communicating the oil path B130 are formed along the front side of the valve seat 100, and the upper ports of the oil paths a120 and B130 can avoid the arrangement of pipeline joints for connecting an oil supply system and directly sealing the oil supply system through plugs, so that the disassembly and assembly of the valve core 200 cannot be affected by the pipeline joints.
Further, the extending oil port 1120 and the contracting oil port 1110 are both located above the connecting column 300, so that the connecting column 300 is prevented from influencing the disassembly and assembly of the pipeline joint, and the layout is more reasonable.
It is worth mentioning that the inner diameter of the oil path F190 is smaller than that of the oil path D150, and the oil path F190 is set to be two, so that the whole flow of the oil path F190 is ensured, the interval between the oil path F190 and the oil path D150 is ensured, the oil path F190 and the oil path D150 are prevented from being perforated due to machining problems, and the reject ratio is reduced.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (8)
1. A valve assembly for a hydraulic cylinder, comprising:
the oil way A and the oil way B are arranged on the left side and the right side of the slot, an oil way C communicated with the oil way A and the slot and an oil way D communicated with the oil way A are arranged on the left side of the valve seat, an oil way E communicated with the oil way B and the slot and the right side of the valve seat are arranged on the right side of the valve seat, a first circular groove is formed in the back side of the valve seat, a second circular groove concentric with the first circular groove is formed in the first circular groove in a concave mode, an oil way F communicated with the oil way D is arranged in the first circular groove, and an oil way G communicated with the slot and the slot is arranged in the second circular groove;
and the valve core is inserted on the valve seat through the slot.
2. A valve assembly for a hydraulic cylinder according to claim 1, wherein: the valve seat is characterized in that a hollow connecting column is fixedly arranged on the front side of the valve seat, and the left end and the right end of the connecting column extend out of the valve seat.
3. A valve assembly for a hydraulic cylinder according to claim 2, wherein: and a positioning pin is also arranged between the connecting column and the valve seat, and the front end and the rear end of the positioning pin are respectively embedded into the connecting column and the valve seat.
4. A valve assembly for a hydraulic cylinder according to claim 3, wherein: the spliced pole is equipped with the location plane with the disk seat laminating, locating pin front end embedding location plane.
5. A valve assembly for a hydraulic cylinder according to claim 4, wherein: the locating pin is a split pin, and the front end and the rear end of the locating pin are in interference fit with the connecting column and the valve seat respectively.
6. A valve assembly for a hydraulic cylinder according to claim 2, wherein: a contraction oil port communicated with the oil path A and an extension oil port communicated with the oil path B are arranged along the front side of the valve seat.
7. A valve assembly for a hydraulic cylinder according to claim 6, wherein: the extending oil port and the contracting oil port are both positioned above the connecting column.
8. A valve assembly for a hydraulic cylinder according to claim 7, wherein: the inner diameter of the oil path F is smaller than that of the oil path D, and the oil paths F are multiple.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020372069.8U CN211951025U (en) | 2020-03-23 | 2020-03-23 | Valve assembly for hydraulic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020372069.8U CN211951025U (en) | 2020-03-23 | 2020-03-23 | Valve assembly for hydraulic cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211951025U true CN211951025U (en) | 2020-11-17 |
Family
ID=73184878
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020372069.8U Active CN211951025U (en) | 2020-03-23 | 2020-03-23 | Valve assembly for hydraulic cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211951025U (en) |
-
2020
- 2020-03-23 CN CN202020372069.8U patent/CN211951025U/en active Active
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