CN210715345U - Threaded cartridge type one-way unloading overflow valve - Google Patents
Threaded cartridge type one-way unloading overflow valve Download PDFInfo
- Publication number
- CN210715345U CN210715345U CN201921325674.3U CN201921325674U CN210715345U CN 210715345 U CN210715345 U CN 210715345U CN 201921325674 U CN201921325674 U CN 201921325674U CN 210715345 U CN210715345 U CN 210715345U
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- valve sleeve
- valve core
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- 230000007704 transition Effects 0.000 claims abstract description 21
- 238000013016 damping Methods 0.000 claims abstract description 13
- 229910000831 Steel Inorganic materials 0.000 claims description 10
- 239000010959 steel Substances 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000012545 processing Methods 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000003672 processing method Methods 0.000 abstract 1
- 238000009434 installation Methods 0.000 description 4
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
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Abstract
The utility model discloses a screw-thread cartridge one-way unloading overflow valve, which is characterized in that the upper end of a valve sleeve is provided with an excessive valve sleeve, a pilot valve sleeve is arranged in the excessive valve sleeve, the inner lower end of the pilot valve sleeve is provided with a pilot valve core, a pilot valve seat is arranged above the pilot valve core, one end of a spring a is fixed on the pilot valve seat, and the other end is fixed at the bottom of an adjusting screw rod; the bottom of the transition valve sleeve is provided with a damping a; the bottom of the overflow valve core is provided with a damper b, a spring b is arranged inside the overflow valve core, and the upper end of the spring b is matched and connected with the bottom of the transition valve sleeve; a one-way valve core is arranged below the overflow valve core, a one-way valve guide seat is arranged below the one-way valve core, and a spring c is arranged in the one-way valve guide seat. The processing method has the advantages that the processing is convenient, the interchangeability of all parts is strong, the mass production is convenient, the production cost is greatly reduced, and the production efficiency is improved; the hydraulic system has faults, and the on-site maintenance time is greatly shortened by adopting an integral replacement mode.
Description
Technical Field
The utility model relates to a field of overflow valve especially relates to a screw thread cartridge formula one-way off-load overflow valve.
Background
The one-way unloading overflow valve used in the hydraulic industry at present is installed in a plate type, the plate type installed one-way unloading overflow valve is inconvenient to disassemble and assemble, the weight is large, the failure rate is high, and the one-way valve of the plate type installed one-way unloading overflow valve needs to be additionally configured in later use, so that the valve is large in size, complex in installation design, inconvenient to operate, difficult to maintain, time-consuming and labor-consuming.
Disclosure of Invention
The utility model aims at providing a screw thread cartridge formula one-way off-load overflow valve, compact structure, convenient to use has solved above technical problem.
In order to realize the technical purpose, reach foretell technical requirement, the utility model discloses the technical scheme who adopts is: the utility model provides a screw thread cartridge formula one-way off-load overflow valve which characterized in that: the valve comprises a valve sleeve, wherein the upper end of the valve sleeve is provided with a transition valve sleeve, and the lower part of the transition valve sleeve extends into the valve sleeve and is matched with the valve sleeve; a pilot valve sleeve is arranged in the transition valve sleeve, and an adjusting screw rod is arranged at the upper end of the pilot valve sleeve; the lower end in the pilot valve sleeve is provided with a pilot valve core, a pilot valve seat is arranged above the pilot valve core, one end of a spring a is fixed on the pilot valve seat, and the other end of the spring a is fixed at the bottom of the adjusting screw; the bottom of the transition valve sleeve is provided with a through hole, and a damping a is arranged in the through hole; an overflow valve core is arranged below the transition valve sleeve, the bottom of the overflow valve core is provided with a damping b, a spring b is arranged in the overflow valve core, and the upper end of the spring b is matched and connected with the bottom of the transition valve sleeve; the lower part of the overflow valve core is provided with a one-way valve core, a one-way valve guide seat is matched with the one-way valve core and arranged below the one-way valve core, and a spring c is arranged in the one-way valve guide seat.
Preferably: the bottom of the damping b is provided with a filter screen, so that impurities are effectively prevented from entering the overflow valve.
Preferably: the valve sleeve is internally provided with a vertical control port, and the upper end of the control port is provided with a plug.
Preferably: the main oil return port is obliquely arranged and communicated with the overflow valve core.
Preferably: the main oil inlet sets up in the below of main oil return opening, and main oil inlet forms the splayed with main oil return opening, and the hydraulic line's of being convenient for installation is dismantled.
Preferably: the outer surface of the adjusting screw rod is provided with threads, and the locking nut is matched and locked with the adjusting screw rod.
Preferably: and a sealing ring is arranged between the adjusting screw rod and the pilot valve sleeve, so that leakage is effectively reduced, and the structural stability is improved.
Preferably: and a steel ball is arranged in the pilot valve seat.
The utility model has the advantages that; the utility model provides a screw thread cartridge formula one-way off-load overflow valve, compares with traditional structure: the hydraulic integrated valve has the advantages that the pilot valve, the overflow valve and the one-way valve are integrated, the pilot valve, the overflow valve and the one-way valve are screwed into the corresponding mounting holes in the valve sleeve by threads in a threaded insertion mode, the structure is simple and compact, hydraulic pressure is integrated better, the size of an integrated block is reduced, the weight is reduced, the mounting space is saved, and the mounting is convenient and rapid; the utility model has the advantages of convenient processing of each part, strong interchangeability, convenient mass production, greatly reduced production cost and improved production efficiency; the hydraulic system has faults, and the on-site maintenance time is greatly shortened by adopting an integral replacement mode.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the upper structure of FIG. 1 according to the present invention;
FIG. 3 is a schematic view of the lower structure of FIG. 1 according to the present invention;
in the figure: 1. a valve housing; 2. a transition valve housing; 3. a pilot valve housing; 4. adjusting the screw rod; 5. a pilot valve spool; 6. a pilot valve seat; 7. a spring a; 8. damping a; 9. an overflow valve spool; 10. damping b; 11. a spring b; 12. a one-way valve spool; 13. a check valve guide seat; 14. steel balls; 15. a spring c; 16. filtering with a screen; 17. a control port; 18. a plug; 19. a main oil return port; 20. a main oil inlet; 21. and locking the nut.
Detailed Description
In order to make the object, technical solution and beneficial technical effects of the present invention clearer, the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments;
in the drawings: the utility model provides a screw thread cartridge formula one-way off-load overflow valve which characterized in that: the valve comprises a valve sleeve 1, wherein the upper end of the valve sleeve 1 is provided with a transition valve sleeve 2, and the lower part of the transition valve sleeve 2 extends into the valve sleeve 1 to be matched with the valve sleeve 1; a pilot valve sleeve 3 is arranged in the transition valve sleeve 2, and an adjusting screw rod 4 is arranged at the upper end of the pilot valve sleeve 3; a pilot valve core 5 is arranged at the lower end inside the pilot valve sleeve 3, a pilot valve seat 6 is arranged above the pilot valve core 5, one end of a spring a7 is fixed on the pilot valve seat 6, and the other end of the spring a7 is fixed at the bottom of the adjusting screw rod 4; the bottom of the transition valve sleeve 2 is provided with a through hole, and a damping a8 is arranged in the through hole; an overflow valve core 9 is arranged below the transition valve sleeve 2, the bottom of the overflow valve core 9 is provided with a damping b10, a spring b11 is arranged inside the overflow valve core 9, and the upper end of the spring b11 is matched and connected with the bottom of the transition valve sleeve 2; a one-way valve core 12 is arranged below the overflow valve core 9, a one-way valve guide seat 13 is matched with the one-way valve core 12 and arranged below the one-way valve core 12, and a spring c15 is arranged in the one-way valve guide seat 13.
The bottom of the damping b10 is provided with a filter screen 16; a vertical control port 17 is arranged in the valve sleeve 1, and a plug 18 is arranged at the upper end of the control port 17; the main oil return port 19 is obliquely arranged and communicated with the overflow valve core 9; the main oil inlet 20 is arranged below the main oil return opening 19, and the main oil inlet 20 and the main oil return opening 19 form a splayed shape; the outer surface of the adjusting screw rod 4 is provided with threads, and the locking nut 21 is matched and locked with the adjusting screw rod 4; a sealing ring is arranged between the adjusting screw rod 4 and the pilot valve sleeve 2; a steel ball 14 is arranged in the pilot valve seat 6.
The utility model discloses a concrete implementation: the pump is delivered to a hydraulic system through a one-way valve, and the pressure of the working oil inlet A enters the pilot valve core through the control port. Meanwhile, the pressure of the main oil inlet P enters an overflow valve core spring cavity and the steel ball pressure side of the pilot valve through a damping b and a, when the pressure of the working oil inlet A reaches the set pressure of the pilot valve, the steel ball leaves the valve seat by overcoming the force of the spring b, the pilot oil flows into an oil return cavity T through the damping a and the steel ball valve seat, and the overflow valve core lifts up to start overflowing. At the moment, pressure difference exists at the two ends of the pilot valve core, the pilot valve core props against the steel ball to enable the pilot valve core not to reset, pressure in a spring cavity of the main overflow valve core returns oil through the steel ball and the valve seat, and the main overflow valve is opened to release pressure. When the pressure of the port A is reduced, the steel ball is jointed with the valve seat after the spring b overcomes the force on the pilot valve core. The relief valve core is closed and the system is pressurized again.
The utility model has compact structure, small volume, light weight, saved installation space, convenient and rapid installation and convenient processing, and simplifies the hydraulic integrated valve block; greatly reduced the possibility of revealing, loss of pressure is little, and it is few to generate heat, and the reliability is high, can effectively reduce whole hydraulic system's running cost.
The foregoing examples are given for the purpose of illustrating the present invention in a clear and non-restrictive manner, and it will be apparent to those skilled in the art that variations and modifications of the present invention may be made in other variations and modifications based on the foregoing description, and it is not necessary or necessary to exhaustively enumerate all embodiments, and all such variations and modifications as are obvious and desirable in the art are within the scope of the present invention.
Claims (8)
1. The utility model provides a screw thread cartridge formula one-way off-load overflow valve which characterized in that: the valve comprises a valve sleeve (1), wherein the upper end of the valve sleeve (1) is provided with a transition valve sleeve (2), and the lower part of the transition valve sleeve (2) extends into the valve sleeve (1) to be matched with the valve sleeve (1); a pilot valve sleeve (3) is arranged in the transition valve sleeve (2), and an adjusting screw (4) is arranged at the upper end of the pilot valve sleeve (3); a pilot valve core (5) is arranged at the lower end of the interior of the pilot valve sleeve (3), a pilot valve seat (6) is arranged above the pilot valve core (5), one end of a spring a (7) is fixed on the pilot valve seat (6), and the other end of the spring a is fixed at the bottom of the adjusting screw rod (4); the bottom of the transition valve sleeve (2) is provided with a through hole, and a damping a (8) is arranged in the through hole; an overflow valve core (9) is arranged below the transition valve sleeve (2), a damper b (10) is arranged at the bottom of the overflow valve core (9), a spring b (11) is arranged in the overflow valve core (9), and the upper end of the spring b (11) is matched and connected with the bottom of the transition valve sleeve (2); a one-way valve core (12) is arranged below the overflow valve core (9), a one-way valve guide seat (13) is matched with the one-way valve core (12) and arranged below the one-way valve core (12), and a spring c (15) is arranged in the one-way valve guide seat (13).
2. The threaded plug-in type one-way unloading overflow valve according to claim 1, characterized in that: and a filter screen (16) is arranged at the bottom of the damping b (10).
3. The threaded plug-in type one-way unloading overflow valve according to claim 1, characterized in that: a vertical control port (17) is formed in the valve sleeve (1), and a plug (18) is arranged at the upper end of the control port (17).
4. The threaded plug-in type one-way unloading overflow valve according to claim 1, characterized in that: the main oil return port (19) is obliquely arranged and communicated with the overflow valve core (9).
5. The threaded plug-in type one-way unloading overflow valve according to claim 1, characterized in that: the main oil inlet (20) is arranged below the main oil return opening (19), and the main oil inlet (20) and the main oil return opening (19) form a splayed shape.
6. The threaded plug-in type one-way unloading overflow valve according to claim 1, characterized in that: the outer surface of the adjusting screw rod (4) is provided with threads, and the locking nut (21) is matched and locked with the adjusting screw rod (4).
7. The threaded plug-in type one-way unloading overflow valve according to claim 6, characterized in that: and a sealing ring is arranged between the adjusting screw rod (4) and the pilot valve sleeve (3).
8. The threaded plug-in type one-way unloading overflow valve according to claim 1, characterized in that: and a steel ball (14) is arranged in the pilot valve seat (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921325674.3U CN210715345U (en) | 2019-08-15 | 2019-08-15 | Threaded cartridge type one-way unloading overflow valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921325674.3U CN210715345U (en) | 2019-08-15 | 2019-08-15 | Threaded cartridge type one-way unloading overflow valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210715345U true CN210715345U (en) | 2020-06-09 |
Family
ID=70929825
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921325674.3U Expired - Fee Related CN210715345U (en) | 2019-08-15 | 2019-08-15 | Threaded cartridge type one-way unloading overflow valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210715345U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112460092A (en) * | 2020-12-10 | 2021-03-09 | 山东泰丰智能控制股份有限公司 | Flow valve and overflow valve integrated threaded cartridge valve |
-
2019
- 2019-08-15 CN CN201921325674.3U patent/CN210715345U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112460092A (en) * | 2020-12-10 | 2021-03-09 | 山东泰丰智能控制股份有限公司 | Flow valve and overflow valve integrated threaded cartridge valve |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200609 |