CN219841098U - Vibration-proof and howling-proof direct-acting overflow valve - Google Patents
Vibration-proof and howling-proof direct-acting overflow valve Download PDFInfo
- Publication number
- CN219841098U CN219841098U CN202321015108.9U CN202321015108U CN219841098U CN 219841098 U CN219841098 U CN 219841098U CN 202321015108 U CN202321015108 U CN 202321015108U CN 219841098 U CN219841098 U CN 219841098U
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- vibration
- valve
- proof
- liquid flow
- overflow valve
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- 239000007788 liquid Substances 0.000 claims abstract description 31
- 238000013016 damping Methods 0.000 claims abstract description 28
- 230000001105 regulatory effect Effects 0.000 claims abstract description 15
- 239000000463 material Substances 0.000 claims description 3
- 239000003921 oil Substances 0.000 description 4
- 239000010720 hydraulic oil Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
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- Details Of Valves (AREA)
Abstract
The utility model provides a vibration-proof and whistle-proof direct-acting overflow valve, which comprises a valve body and a cone valve core arranged in the valve body; the lower end of the cone valve core is provided with a liquid flow backflushing structure; the upper end of the valve body is also provided with a plug, a damping rod is also arranged between the plug and the upper end of the cone valve core, the cone valve core and the outer side of the damping rod are respectively sleeved with a pressure regulating spring, one end of the pressure regulating spring is abutted with the plug, and the other end of the pressure regulating spring is abutted with the cone valve core. According to the utility model, the vibration of the overflow valve is reduced through the liquid flow backflushing structure, and when the overflow valve is opened by overflow, high-speed liquid flow rushes to the backflushing guide oblique side from the direction of the guide oblique side, so that the flow speed of the liquid flow is relieved by partial liquid flow backflushing, and the purpose of reducing vibration is achieved; the backflushing guide bevel edge plays a role in guiding liquid flow, and the liquid flow is guided to the T port, so that the vibration cause of the overflow valve is reduced; damping of the overflow valve can be effectively increased through the damping rod and the two damping O-shaped rings, and therefore the problem of vibration and squeal of the overflow valve can be effectively solved.
Description
Technical Field
The utility model relates to the technical field of overflow valves, in particular to a vibration-proof and howling-proof direct-acting overflow valve.
Background
The direct-acting overflow valve mainly comprises a valve body, a valve core, a pressure regulating spring and a pressure regulating screw, wherein the valve core is tightly attached to a valve seat under the action of the pressure regulating spring in a normal state, and an oil inlet and an oil outlet are not communicated, so that the overflow valve is in a normally closed state, when the overflow valve is connected into a system, hydraulic oil generates an acting force on the valve core, the direction of the acting force is opposite to that of the spring force, when the acting force of the hydraulic oil is larger than the spring force, the valve core is opened, the hydraulic oil flows back to an oil tank from an overflow port, the spring force increases along with the increase of the opening of the overflow valve until the acting force is balanced with the hydraulic force, and when the overflow valve starts overflowing, the pressure at the oil inlet of the overflow valve is basically stabilized on a set value, so that the overflow pressure stabilizing effect is achieved.
However, the existing relief valve can vibrate during relief and be accompanied by squeaking sounds, which greatly damages the service life of the valve.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model provides a vibration-proof and howling-proof direct-acting overflow valve.
The technical scheme of the utility model is as follows: a vibration-proof and squeal-proof direct-acting overflow valve comprises a valve body and a cone valve core arranged in the valve body; the lower end of the cone valve core is provided with a liquid flow backflushing structure; the valve is characterized in that a plug is further arranged at the upper end of the valve body, a damping rod is further arranged between the plug and the upper end of the cone valve core, pressure regulating springs are sleeved on the outer sides of the cone valve core and the damping rod, one ends of the pressure regulating springs are abutted to the plug, and the other ends of the pressure regulating springs are abutted to the cone valve core.
Preferably, the liquid flow backflushing structure comprises a backflushing wire inclined edge arranged at the bottom of the cone valve core; the liquid flow backflushing structure also comprises a guide bevel edge arranged at the bottom of the cone valve core. The guiding bevel edge and the recoil wire bevel edge are in vertical relation. When the overflow valve is opened, the high-speed liquid flow rushes to the backflushing guide inclined edge from the direction of the guide inclined edge, so that the backflushing of part of liquid flow relieves the flow speed of the liquid flow, and the purpose of relieving vibration is achieved. And the recoil guide bevel edge plays a role in guiding liquid flow and guiding the liquid flow to the T-shaped opening, so that the vibration cause of the overflow valve is reduced.
Preferably, a fit clearance is formed between the valve body and the lower end of the cone valve core.
Preferably, the diameter of the damping rod is 3mm.
Preferably, the damping rod is made of rubber materials.
Preferably, two damping O-shaped rings are sleeved on the outer side of the valve body, and the damping of the overflow valve can be effectively increased through the damping rod and the two damping O-shaped rings, so that the problem of vibration and squeal of the overflow valve can be effectively solved.
Preferably, the side wall of the lower end of the valve body is provided with a plurality of valve holes.
Preferably, a lock nut is arranged on the outer side of the plug.
The beneficial effects of the utility model are as follows:
1. according to the utility model, the vibration of the overflow valve is reduced through the liquid flow backflushing structure, and when the overflow valve is opened by overflow, high-speed liquid flow rushes to the backflushing guide oblique side from the direction of the guide oblique side, so that the flow speed of the liquid flow is relieved by partial liquid flow backflushing, and the purpose of reducing vibration is achieved; the backflushing guide bevel edge plays a role in guiding liquid flow, and the liquid flow is guided to the T port, so that the vibration cause of the overflow valve is reduced;
2. according to the utility model, the damping rod and the two damping O-shaped rings can effectively increase the damping of the overflow valve, so that the problem of vibration and squeal of the overflow valve can be effectively solved;
drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic cross-sectional view of the present utility model;
FIG. 3 is a schematic diagram of the cone valve core of the present utility model;
FIG. 4 is a schematic illustration of the fluid backflushing structure of the present utility model;
in the figure, 1-valve body; 2-cone valve core; 3-liquid flow backflushing structure; 4-plugs; 5-a damper rod; 6-pressure regulating springs; 7-damping O-rings; 8-locking nuts;
11-valve hole; 12-fit clearance;
31-recoil wire bevel edge; 32-oblique guiding edge.
Detailed Description
The following is a further description of embodiments of the utility model, taken in conjunction with the accompanying drawings:
as shown in fig. 1-2, the present embodiment provides a vibration-proof and squeal-proof direct-acting overflow valve, which comprises a valve body 1 and a cone valve core 2 arranged in the valve body 1; the lower end of the cone valve core 2 is provided with a liquid flow backflushing structure 3; the upper end of the valve body 1 is also provided with a plug 4, a damping rod 5 is further arranged between the plug 4 and the upper end of the cone valve core 2, the cone valve core 2 and the damping rod 5 are both sleeved with a pressure regulating spring 6, one end of the pressure regulating spring 6 is abutted with the plug 4, and the other end is abutted with the cone valve core 2.
As preferable in this embodiment, as shown in fig. 3 and 4, the liquid flow backflushing structure 3 includes a backflushing wire inclined edge 31 arranged at the bottom of the cone valve core 2; the liquid flow backflushing structure 3 also comprises a guide bevel edge 32 arranged at the bottom of the cone valve core 2. The guiding bevel 32 is in vertical relation with the recoil wire bevel 31. When the overflow valve is opened, the high-speed liquid flow rushes to the backflushing guide inclined edge 31 from the direction of the guide inclined edge 32, so that the backflushing of part of the liquid flow relieves the flow velocity of the liquid flow, and the purpose of reducing vibration is achieved. And the recoil guide sloping edge 31 serves to guide the flow to the T-port so that the cause of vibration of the relief valve is reduced.
As a preferred embodiment, a fit clearance 12 is formed between the valve body 1 and the lower end of the cone valve core 2.
Preferably, the diameter of the damper rod 5 is 3mm.
Preferably, the damper 5 is made of rubber material.
As the preferred embodiment, the outside of the valve body 1 is also sleeved with two damping O-shaped rings 7, and the damping of the overflow valve can be effectively increased through the damping rod 5 and the two damping O-shaped rings 7, so that the problem of vibration whistle of the overflow valve can be effectively solved.
As a preferred embodiment, the side wall of the lower end of the valve body 1 is provided with a plurality of valve holes 11.
As a preferred embodiment, a lock nut 8 is disposed on the outer side of the plug 4.
The foregoing embodiments and description have been provided merely to illustrate the principles and best modes of carrying out the utility model, and various changes and modifications can be made therein without departing from the spirit and scope of the utility model as defined in the appended claims.
Claims (10)
1. A vibration-proof and howling-proof direct-acting overflow valve is characterized in that: comprises a valve body (1) and a cone valve core (2) arranged in the valve body (1); the lower end of the cone valve core (2) is provided with a liquid flow backflushing structure (3); the valve is characterized in that a plug (4) is further arranged at the upper end of the valve body (1), a damping rod (5) is further arranged between the plug (4) and the upper end of the cone valve core (2), pressure regulating springs (6) are respectively sleeved on the outer sides of the cone valve core (2) and the damping rod (5), one ends of the pressure regulating springs (6) are abutted to the plug (4), and the other ends of the pressure regulating springs are abutted to the cone valve core (2).
2. The vibration-proof, howling-proof, direct acting overflow valve of claim 1, wherein: the liquid flow backflushing structure (3) comprises a backflushing wire inclined edge (31) arranged at the bottom of the cone valve core (2).
3. A vibration-and howling-preventing direct-acting overflow valve as claimed in claim 2, wherein: the liquid flow backflushing structure (3) also comprises a guide bevel edge (32) arranged at the bottom of the cone valve core (2).
4. A vibration-and howling-preventing direct-acting overflow valve as claimed in claim 3, wherein: the guiding bevel edge (32) and the recoil lead bevel edge (31) are in vertical relation.
5. The vibration-proof, howling-proof, direct acting overflow valve of claim 1, wherein: a fit clearance (12) is formed between the valve body (1) and the lower end of the cone valve core (2).
6. The vibration-proof, howling-proof, direct acting overflow valve of claim 1, wherein: the diameter of the damping rod (5) is 3mm.
7. The vibration-and howling-preventing direct-acting overflow valve of claim 6, wherein: the damping rod (5) is made of rubber materials.
8. The vibration-proof, howling-proof, direct acting overflow valve of claim 5, wherein: two damping O-shaped rings (7) are sleeved on the outer side of the valve body (1).
9. The vibration-and howling-preventing direct-acting overflow valve of claim 8, wherein: a plurality of valve holes (11) are formed in the side wall of the lower end of the valve body (1).
10. The vibration-proof, howling-proof, direct acting overflow valve of claim 1, wherein: the outside of the plug (4) is provided with a lock nut (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321015108.9U CN219841098U (en) | 2023-04-28 | 2023-04-28 | Vibration-proof and howling-proof direct-acting overflow valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321015108.9U CN219841098U (en) | 2023-04-28 | 2023-04-28 | Vibration-proof and howling-proof direct-acting overflow valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219841098U true CN219841098U (en) | 2023-10-17 |
Family
ID=88304575
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321015108.9U Active CN219841098U (en) | 2023-04-28 | 2023-04-28 | Vibration-proof and howling-proof direct-acting overflow valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219841098U (en) |
-
2023
- 2023-04-28 CN CN202321015108.9U patent/CN219841098U/en active Active
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