CN221347445U - Pressure relief valve core for liquid filling valve - Google Patents
Pressure relief valve core for liquid filling valve Download PDFInfo
- Publication number
- CN221347445U CN221347445U CN202323255206.2U CN202323255206U CN221347445U CN 221347445 U CN221347445 U CN 221347445U CN 202323255206 U CN202323255206 U CN 202323255206U CN 221347445 U CN221347445 U CN 221347445U
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- China
- Prior art keywords
- valve core
- pressure relief
- core
- valve
- liquid filling
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- 239000007788 liquid Substances 0.000 title claims abstract description 27
- 238000007789 sealing Methods 0.000 claims abstract description 7
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Abstract
The utility model discloses a pressure relief valve core for a liquid filling valve, which comprises a core bar and a guide cylinder, wherein the outer wall of the core bar is in sliding connection with the guide cylinder, the bottom of the core bar is provided with a valve core assembly, the valve core assembly can realize multistage efficient pressure relief of the liquid filling valve, the valve core assembly comprises a main valve core and an auxiliary valve core, the main valve core is arranged at the lower end of the core bar, the auxiliary valve core is arranged at the lower end of the main valve core, a groove II is formed in the lower end of the auxiliary valve core, and the outer wall of the auxiliary valve core is provided with a sealing ring, so that the pressure relief valve relates to the technical field of liquid filling valves: by additionally arranging the auxiliary valve core on the main valve core of the liquid filling valve, the tightness of the valve core is improved, meanwhile, the auxiliary valve core is provided with a multi-stage pressure relief hole for pressure relief, the pressure relief efficiency of the liquid filling valve is improved, meanwhile, the main valve core is provided with a pressure relief connecting hole for outwards relieving pressure, the quick pressure relief of the liquid filling valve and the valve core is improved, and the impact of the pressure difference between the space in the valve core and the high-pressure oil tank on the valve core is reduced.
Description
Technical Field
The utility model relates to the field of liquid filling valves, in particular to a pressure relief valve core for a liquid filling valve.
Background
The hydraulic valve is a hydraulic control one-way valve, one direction stops flow, the other direction freely circulates, the pilot action is realized by hydraulic pressure of a control valve core which is supplied by an oil port, and therefore, the main valve is directly opened, the valve is designed for a superposition system, namely, various other types of hydraulic valves can be superposed on a basic member, the oil supply is increased on a medium-sized hydraulic press and a large-sized hydraulic press, so that a main cylinder piston rapidly descends, the hydraulic valve is mainly arranged between an oil tank and the main cylinder, and because the pressure difference between a space in the core body and a high-pressure oil tank is large, after a through hole is completely opened, enough high-pressure oil enters the core body along the completely opened through hole, so that the impact on the core body is large, the core body is rapidly eroded, and the hydraulic valve needs to be rapidly and efficiently relieved;
Therefore, it is necessary to invent a relief valve cartridge for a charge valve.
Disclosure of utility model
The utility model aims to provide a pressure relief valve core for a liquid filling valve, which aims to solve the problems in the prior art.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
The pressure relief valve core for the liquid filling valve comprises a core bar and a guide cylinder, wherein the outer wall of the core bar is connected with the guide cylinder in a sliding manner, a valve core assembly is arranged at the bottom of the core bar, and the valve core assembly can be used for carrying out multistage efficient pressure relief on the liquid filling valve.
In a preferred embodiment of the present utility model, the valve cartridge assembly includes a main valve cartridge mounted at a lower end of the stem and a sub valve cartridge mounted at a lower end of the main valve cartridge.
In a preferred embodiment of the utility model, a second groove is formed in the lower end of the auxiliary valve core, and a sealing ring is arranged on the outer wall of the auxiliary valve core.
In a preferred embodiment of the utility model, the inner wall of the side end of the auxiliary valve core is symmetrically provided with a primary pressure relief hole, a secondary pressure relief hole and a tertiary pressure relief hole respectively.
In a preferred embodiment of the present utility model, a groove one is formed in the main valve core, and the lower end of the groove one is communicated with the groove two.
In a preferred embodiment of the present utility model, a first pressure relief connecting hole is formed at one side end of the first groove, and a second pressure relief connecting hole is formed at the other side end of the first groove.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.
The beneficial effects are that:
By additionally arranging the auxiliary valve core on the main valve core of the liquid filling valve, the tightness of the valve core is improved, meanwhile, the auxiliary valve core is provided with a multi-stage pressure relief hole for pressure relief, the pressure relief efficiency of the liquid filling valve is improved, meanwhile, the main valve core is provided with a pressure relief connecting hole for outwards relieving pressure, the quick pressure relief of the liquid filling valve and the valve core is improved, and the impact of the pressure difference between the space in the valve core and the high-pressure oil tank on the valve core is reduced.
Drawings
FIG. 1 is a schematic illustration I of a pressure relief valve cartridge for a charge valve;
FIG. 2 is a schematic diagram II of a pressure relief valve cartridge for a charge valve;
FIG. 3 is a block diagram of a pressure relief valve cartridge for a charge valve;
fig. 4 is a front view of a pressure relief valve cartridge for a charge valve.
In the figure: core bar 1, guide cylinder 11, valve core subassembly 2, main valve core 21, recess one 211, vice case 22, recess two 23, one-level release hole 24, second grade release hole 25, tertiary release hole 26, sealing washer 27, release connecting hole one 28, release connecting hole two 29.
Detailed Description
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.
As shown in figures 1-4 of the drawings,
The hydraulic filling valve comprises a core bar 1 and a guide cylinder 11, wherein the outer wall of the core bar 1 is in sliding connection with the guide cylinder 11, the bottom of the core bar 1 is provided with a valve core assembly 2, and the valve core assembly 2 can realize multistage efficient pressure relief on the filling valve;
The valve core assembly 2 comprises a main valve core 21 and a secondary valve core 22, wherein the main valve core 21 and the secondary valve core 22 are valve cores in the liquid filling valve, the core bar 1 moves up and down, the height positions of the main valve core 21 and the secondary valve core 22 can be adjusted, the main valve core 21 is arranged at the lower end of the core bar 1, the secondary valve core 22 is arranged at the lower end of the main valve core 21, a groove II 23 is formed in the lower end of the secondary valve core 22, the pressure in the liquid filling valve enters the groove II 23, firstly, the pressure is outwards relieved through the primary pressure relief hole 24, a sealing ring 27 is arranged on the outer wall of the secondary valve core 22, the tightness of the secondary valve core 22 is increased through the sealing ring 27, the primary pressure relief hole 24, the secondary pressure relief hole 25 and the tertiary pressure relief hole 26 are symmetrically formed in the inner wall of the side end of the secondary valve core 22 respectively, hydraulic impact is large during rapid oil discharge, the liquid filling valve is respectively carried out through the primary pressure relief hole 24, the secondary pressure relief hole 25 and the tertiary pressure relief hole 26, the efficiency of the liquid filling valve is improved through the secondary pressure relief hole 24, the secondary pressure relief hole 26 is finally, the efficiency of the liquid filling valve is improved, the groove 211 is formed in the inner the groove, the groove I is used for outwards relieving the pressure of the groove 21, the groove I is used for connecting the groove I, the groove II is connected with the groove 29, and the groove 29 is connected with the groove II, and the groove 29 is formed in the groove 28, and the groove 29 is connected to the groove 28, and the groove 28 is formed in the side, and the valve is connected to the groove 28.
The working principle of the utility model is as follows: the main valve core 21 is arranged at the lower end of the core bar 1, the auxiliary valve core 22 is arranged at the lower end of the main valve core 21, a groove II 23 is formed in the lower end of the auxiliary valve core 22, a sealing ring 27 is arranged on the outer wall of the auxiliary valve core 22, a first-stage pressure relief hole 24, a second-stage pressure relief hole 25 and a third-stage pressure relief hole 26 are symmetrically formed in the inner wall of the side end of the auxiliary valve core 22, a groove I211 is formed in the main valve core 21, the lower end of the groove I211 is communicated with the groove II 23, a pressure relief connecting hole 28 is formed in one side end of the groove I211, a pressure relief connecting hole II 29 is formed in the other side end of the groove I211, the core bar 1 moves up and down, the height positions of the main valve core 21 and the auxiliary valve core 22 can be adjusted, the tightness of the valve core is increased, the pressure in the liquid filling valve enters the groove II 23, the pressure relief hole 24 is firstly formed through the first-stage pressure relief hole 25, and finally the pressure relief efficiency of the liquid filling valve is improved through the third-stage pressure relief hole 26, the groove I211 is used for entering the main valve core 21, the pressure, the connecting hole I28 and the connecting hole 29 is used for connecting the pressure relief valve I and the connecting the pressure core 29 to the pressure relief valve 29, and the pressure difference between the two pressure relief valve core and the pressure tank is also reduced, and the pressure difference between the two pressure and the pressure tank is increased.
Although the utility model has been described hereinabove with reference to embodiments, various modifications thereof may be made and equivalents may be substituted for elements thereof without departing from the scope of the utility model. In particular, the features of the disclosed embodiments may be combined with each other in any manner as long as there is no structural conflict, and the exhaustive description of these combinations is not given in this specification merely for the sake of omitting the descriptions and saving resources. Therefore, it is intended that the utility model not be limited to the particular embodiment disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.
Claims (3)
1. The pressure relief valve core for the liquid filling valve comprises a core bar (1) and a guide cylinder (11), wherein the outer wall of the core bar (1) is connected with the guide cylinder (11) in a sliding way,
The bottom of the core bar (1) is provided with a valve core assembly (2), and the valve core assembly (2) can be used for carrying out multistage efficient pressure relief on the liquid filling valve;
The valve core assembly (2) comprises a main valve core (21) and an auxiliary valve core (22), the main valve core (21) is arranged at the lower end of the core bar (1), the auxiliary valve core (22) is arranged at the lower end of the main valve core (21), a groove II (23) is formed in the lower end of the auxiliary valve core (22), a sealing ring (27) is arranged on the outer wall of the auxiliary valve core (22), and a first-stage pressure relief hole (24), a second-stage pressure relief hole (25) and a third-stage pressure relief hole (26) are symmetrically formed in the inner wall of the side end of the auxiliary valve core (22) respectively.
2. The pressure relief valve core for the liquid filling valve according to claim 1, wherein a groove I (211) is formed in the main valve core (21), and the lower end of the groove I (211) is communicated with a groove II (23).
3. The pressure relief valve core for the liquid filling valve according to claim 2, wherein a first pressure relief connecting hole (28) is formed at one side end of the first groove (211), and a second pressure relief connecting hole (29) is formed at the other side end of the first groove (211).
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221347445U true CN221347445U (en) | 2024-07-16 |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant |