CN219888814U

CN219888814U - Pressure regulating valve

Info

Publication number: CN219888814U
Application number: CN202321276249.6U
Authority: CN
Inventors: 胡润民; 何志友
Original assignee: Xinkuang Hydraulic Technology Co ltd
Current assignee: Xinkuang Hydraulic Technology Co ltd
Priority date: 2023-05-24
Filing date: 2023-05-24
Publication date: 2023-10-24
Anticipated expiration: 2033-05-24

Abstract

The utility model provides a pressure regulating valve, including the valve body, the valve pocket has been seted up in the valve body, the valve pocket is the feed liquor end in the left end of valve body, the right-hand member is the play liquid end, feed liquor end department is provided with the feed liquor joint of installing at the valve body, play liquid end department is provided with the play liquid joint of installing at the valve body, be provided with between feed liquor joint and the valve body and be used for preventing/not preventing the liquid medium to get into the opening and close unit in the valve pocket, be provided with in the valve pocket and be used for adjusting output pressure and have the regulation unit of the retractable structure of receiving the extrusion, the both ends of regulation unit are acted on respectively and are opened and close the liquid end, in order to control the feed liquor pressure when liquid medium gets into, and the regulation end of regulation unit passes out liquid joint and exposes outside. According to the utility model, the liquid medium entering the pressure regulating valve flows back to the jack through the liquid return joint, cannot be discharged outside the pressure regulating valve, can be reused, and is not wasted, and the liquid medium is not required to be added to the jack at high frequency.

Description

Pressure regulating valve

Technical Field

The utility model relates to the technical field of hydraulic equipment control, in particular to a pressure regulating valve.

Background

The pressure regulating valve is also called a self-operated balance valve, a flow control valve, a flow controller, a dynamic balance valve and a flow balance valve, is a visual and simple flow regulating control device, can directly set flow according to design by using the flow regulating valve in a pipe network, can automatically eliminate flow deviation caused by residual pressure head and pressure fluctuation of a pipeline under the action of water, and keeps the set flow unchanged no matter how the system pressure changes.

The utility model discloses a relief valve, including the valve section of thick bamboo, connect and connect on the peripheral wall of valve section of thick bamboo one end, and be provided with the inlet on the joint, correspond inlet department on the peripheral wall of joint and be provided with the annular groove, be provided with first O type circle and retaining ring in the annular groove, be provided with the spring holder in the valve section of thick bamboo, the spring, the pressure regulating screw, and the both ends of spring are contradicted respectively on spring holder and pressure regulating screw, and be provided with two rows of apopores on the valve section of thick bamboo, and all be provided with the second O type circle on two rows of apopores, correspond two rows of apopores department in the valve section of thick bamboo and be provided with the case, correspond joint department in the valve section of thick bamboo and be provided with the disk seat, be provided with the guide hole that is linked together with the inlet in the disk seat, the other end of case is contradicted on the spring holder, and be provided with four rows of unloading pores in the guide hole of disk seat, correspond wherein two rows of unloading pore one side department be provided with the first compound seal with the case matched with, two rows of unloading pore's both sides department are provided with the corresponding second peripheral wall of the case in the valve section of thick bamboo respectively, and limit boss is provided with on the disk seat. The principle of the safety valve is that the safety valve is connected with the lower cavity of a jack such as an upright post, a pushing part and a side protection part, when the working top plate of the jack is pressed to enable the movable column to shrink downwards, when the hydraulic pressure of the lower cavity of the jack exceeds the pressure of a spring, the valve core moves rightwards under the pushing of the pressure, four rows of unloading holes on the valve core move through a first composite seal and a second coincidence seal, high-pressure working fluid is discharged from two rows of liquid discharge holes on the valve cylinder and discharged from the liquid discharge port, so that the working fluid pressure of the lower cavity of the jack is reduced, and when the hydraulic pressure of the lower cavity of the jack is smaller than the pressure of the spring, the valve core is reset to restore to the original sealing state; the principle can know that the safety valve can play a role in adjusting and controlling, but has the defect that the working fluid discharged due to pressure relief cannot flow back to the jack again, but can be naturally discharged to the outside, namely flows to the ground, so that the working fluid is wasted, the working fluid needs to be timely filled after a certain time, and otherwise the normal use of the jack is affected.

Disclosure of Invention

The present utility model is directed to solving the above-mentioned drawbacks of the prior art, and provides a pressure regulating valve for solving the above-mentioned problems.

The utility model solves the technical problems by adopting the technical scheme that: the pressure regulating valve comprises a valve body, wherein a valve cavity is formed in the valve body, the left end of the valve cavity is a liquid inlet end, the right end of the valve cavity is a liquid outlet end, a liquid inlet connector installed on the valve body is arranged at the liquid inlet end, a liquid outlet connector installed on the valve body is arranged at the liquid outlet end, an opening and closing unit used for preventing/not preventing liquid medium from entering the valve cavity is arranged between the liquid inlet connector and the valve body, an adjusting unit used for adjusting output pressure and provided with a preset structure capable of retracting under extrusion is arranged in the valve cavity, two ends of the adjusting unit respectively act on the opening and closing unit and the liquid outlet end to control liquid inlet pressure when the liquid medium enters, and the adjusting end of the adjusting unit penetrates the liquid outlet connector to be exposed outside.

Further perfecting, the valve cavity is provided with a reserved mounting point on the valve body, the reserved mounting point is provided with a placing cavity for placing the opening and closing unit therein and a moving channel communicated with the placing cavity and arranged along the length direction of the reserved mounting point, the moving channel is used for placing the opening and closing end of the opening and closing unit therein and moving, and the reserved mounting point is also provided with at least two liquid inlet channels which are symmetrically distributed on two sides of the moving channel and communicated with the valve cavity.

Further perfecting, the opening and closing unit comprises a valve seat and a valve core, one end of the valve seat is arranged in the inner cavity of the liquid inlet joint, the other end of the valve seat is arranged in the placing cavity, one end of the valve core moves in the inner cavity of the valve seat, the other end of the valve core passes through the placing cavity to move in the moving channel, and one end of the valve core moving in the moving channel is abutted with the adjusting unit when preventing liquid medium from entering the valve cavity so as to keep the liquid blocking state of the opening and closing unit.

Further perfecting, the placing cavity is also reserved with a placing space when the valve seat is placed in, the part of the valve core, which is exposed between the valve seat and the moving channel, is placed in the placing space after the valve core enters the moving channel, and an abutting block which is in abutting connection with the inner side surface of the valve seat in the liquid blocking state and in abutting connection with the inner side surface of the placing cavity in the liquid discharging state is arranged.

Further perfecting, the part of the valve core arranged in the valve seat is provided with two rows of unloading holes, the valve seat is provided with at least two diversion channels which enable liquid medium to enter the inner cavity of the liquid inlet joint, and the diversion channels are conducted when the unloading holes move to the set positions through the valve core.

Further perfectedly, the adjusting unit includes spring, first spring holder, second spring holder and adjusting screw, and the both ends of spring are acted on the inside wall of first spring holder, the inside wall of second spring holder respectively, and first spring holder acts on the case to be provided with the end cap of arranging in the movable channel when blocking the liquid state near the one end of case, the end cap is in blocking the liquid state with case looks butt, and the second spring holder acts on out the liquid end, and adjusting screw is fixed to be set up at the lateral wall of second spring holder and pass out the liquid joint and expose outside.

Further perfecting, the second spring seat is provided with a plurality of flow guide through holes for guiding the liquid medium entering the valve cavity to the liquid outlet connector.

The beneficial effects of the utility model are as follows:

according to the utility model, the liquid medium entering the pressure regulating valve flows back to the jack through the liquid return joint, so that the liquid medium cannot be discharged outside the pressure regulating valve, can be reused, cannot be wasted, does not need to be added to the jack at high frequency, and cannot influence the normal use of the jack.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

fig. 2 is an enlarged view of a portion of fig. 1 in accordance with the present utility model.

Detailed Description

The utility model is further described below with reference to the accompanying drawings:

referring to the drawings: the pressure regulating valve comprises a valve body 1, wherein a valve cavity 11 is formed in the valve body 1, the left end of the valve cavity 11 is a liquid inlet end, the right end of the valve body 1 is a liquid outlet end, a liquid inlet connector 2 installed on the valve body 1 is arranged at the liquid inlet end, a liquid return connector 3 installed on the valve body 1 is arranged at the liquid outlet end, an opening and closing unit 4 used for preventing/not preventing liquid medium from entering the valve cavity 11 is arranged between the liquid inlet connector 2 and the valve body 1, an adjusting unit 5 used for adjusting output pressure and provided with a preset structure capable of being retracted by extrusion is arranged in the valve cavity 11, two ends of the adjusting unit 5 respectively act on the opening and closing unit 4 and the liquid outlet end to control the liquid inlet pressure when the liquid medium enters, and the adjusting end of the adjusting unit 5 penetrates through the liquid return connector 3 to be exposed. The principle of the utility model is that the pressure regulating valve is connected with the lower cavity of the jack such as the upright post, the pushing and the side protection, when the top plate of the jack works to press the movable post to shrink down, when the pressure of the liquid medium of the jack exceeds the pressure of the regulating unit 5 when the liquid medium enters the pressure regulating valve, the opening and closing unit 4 moves rightwards under the pushing of the pressure, then the liquid medium enters the valve cavity 11 and flows back to the jack again through the liquid return joint 3, so that the liquid medium can not be discharged outside the pressure regulating valve, can be reused, can not cause the waste of the liquid medium, does not need to add the liquid medium with high frequency, and can not influence the normal use of the jack.

The valve cavity 11 is provided with a reserved mounting point 11-a on the valve body 1, the reserved mounting point 11-a is provided with a placing cavity 11-a1 for placing the opening and closing unit 4 therein and a moving channel 11-a2 which is communicated with the placing cavity 11-a1 and is arranged along the length direction of the reserved mounting point 11-a, the moving channel 11-a2 is used for placing the opening and closing end of the opening and closing unit 4 therein and moving, the reserved mounting point 11-a is also provided with at least two liquid inlet channels 11-a3 which are symmetrically distributed on two sides of the moving channel 11-a2, the liquid inlet channels 11-a3 are communicated with the valve cavity 11, the reserved mounting point 11-a is used for processing the valve cavity 11 of the valve body 1, the processed valve cavity 11 does not penetrate through a reserved part obtained by the valve body 1, so that the placing cavity 11-a1, the moving channel 11-a2 and the liquid inlet channel 11-a3 are arranged at the reserved mounting point 11-a, the placing cavity 11-a1 is used for providing positioning for the opening and closing unit 4, the opening and closing unit 4 can be rapidly arranged on the valve body 1, the moving channel 11-a2 is used for providing liquid inlet channel 11-3 for the opening and closing unit 4, namely, the liquid can flow back to the opening and closing unit 4 in a state and the state can flow back to the valve cavity 11 through the jack 3, and the liquid inlet channel 11 can flow to the liquid medium through the opening and closing unit.

The opening and closing unit 4 includes a valve seat 41 and a valve core 42, one end of the valve seat 41 is disposed in the inner cavity of the liquid inlet joint 2, the other end is disposed in the placement cavity 11-a1, one end of the valve core 42 moves in the inner cavity of the valve seat 41, the other end passes through the placement cavity 11-a1 and moves in the moving channel 11-a2, and one end moving in the moving channel 11-a2 abuts against the adjusting unit 5 to keep the liquid blocking state of the opening and closing unit 4 when preventing the liquid medium from entering the valve cavity 11, the valve seat 41 serves as a fixed part, the valve core 42 moves in, the valve core 42 serves as a movable part, and the position of the valve core 42 changes by moving so that the pressure regulating valve switches between the liquid blocking state and the liquid discharging state.

The placing cavity 11-a1 is also reserved with a placing space 11-a11 when the valve seat 41 is placed in, a part of the valve core 42, which is exposed between the valve seat 41 and the moving channel 11-a2 after entering the moving channel 11-a2, is placed in the placing space 11-a11, and is provided with an abutting block 42-a which is abutted against the inner side surface of the valve seat 41 in a liquid blocking state and is abutted against the inner side surface of the placing cavity 11-a1 in a liquid discharging state, the placing space 11-a11 is an extra reserved space for placing the abutting block 42-a in, and the abutting block 42-a is used for limiting the moving distance of the valve core 42 so as to avoid the valve core 42 from being separated from the valve seat 41 due to the influence of liquid pressure.

The valve core 42 is provided with two rows of unloading holes 42-b on the part which is arranged in the valve seat 41, the valve seat 41 is provided with at least two diversion channels 41-a which enable liquid medium to enter the inner cavity of the liquid inlet joint 2, the diversion channels 41-a are communicated when the unloading holes 42-b move to the set positions through the valve core 42, the unloading holes 42-b are used for releasing the liquid medium, so that when the unloading holes 42-b move to the diversion channels 41-a through the valve core 42-b, the liquid medium can be separated from the valve core 42 through the unloading holes 42-b, then flows into a space formed by the liquid inlet joint 2 and the valve body 1 through the diversion channels 41-a, and then enters the valve cavity 11 through the liquid inlet channels 11-a 3.

The adjusting unit 5 comprises a spring 51, a first spring seat 52, a second spring seat 53 and an adjusting screw 54, wherein two ends of the spring 51 respectively act on the inner side wall of the first spring seat 52 and the inner side wall of the second spring seat 53, the first spring seat 52 acts on the valve core 42, a plug 52-a which is arranged in the moving channel 11-a2 when being in a liquid blocking state is arranged at one end close to the valve core 42, the plug 52-a is abutted against the valve core 42 in the liquid blocking state, the second spring seat 53 acts on a liquid outlet end, the adjusting screw 54 is fixedly arranged on the outer side wall of the second spring seat 53 and passes through the liquid return joint 3 to be exposed outside, the spring 51 enables the adjusting unit 5 to have the structural characteristic of being extruded and retracted, the first spring seat 52 is abutted against the valve core 42 through the plug 52-a in the liquid blocking state and is influenced by the movement of the valve core 42 to actively move, so that the valve core 42 is driven to restore to the initial position before moving by the first spring seat 52 in the liquid blocking state again, namely the second spring seat 53 can only passively move, the second spring seat 53 is enabled to rotate by rotating through the adjusting screw 54, then the adjusting screw 54 is enabled to move, and the adjusting screw is enabled to realize the outer side, and the outer side of the second spring seat 53 is compressed, and the adjusting unit is capable of controlling the compression strength.

The second spring seat 53 is provided with a plurality of flow guide through holes 53-a for guiding the liquid medium entering the valve cavity 11 to the liquid return joint 3 so as to guide the liquid medium to flow to the liquid return joint 3 and control the flow rate of the liquid medium.

While the utility model has been shown and described with reference to a preferred embodiment, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the scope of the utility model.

Claims

1. The utility model provides a pressure regulating valve, includes valve body (1), has seted up valve pocket (11) in valve body (1), and valve pocket (11) are liquid inlet end, right-hand member are liquid outlet end at the left end of valve body (1), its characterized in that: the liquid inlet end is provided with a liquid inlet connector (2) installed on the valve body (1), the liquid outlet end is provided with a liquid return connector (3) installed on the valve body (1), an opening and closing unit (4) used for preventing/not preventing liquid medium from entering the valve cavity (11) is arranged between the liquid inlet connector (2) and the valve body (1), an adjusting unit (5) used for adjusting output pressure and provided with a preset structure capable of retracting under extrusion is arranged in the valve cavity (11), two ends of the adjusting unit (5) respectively act on the opening and closing unit (4) and the liquid outlet end to control liquid inlet pressure when the liquid medium enters, and the adjusting end of the adjusting unit (5) penetrates through the liquid return connector (3) to be exposed outside.

2. The pressure regulating valve according to claim 1, wherein: the valve is characterized in that a reserved mounting point (11-a) is arranged on the valve body (1) by the valve cavity (11), a placing cavity (11-a 1) for placing the opening and closing unit (4) in the valve body is arranged on the reserved mounting point (11-a), and a moving channel (11-a 2) which is communicated with the placing cavity (11-a 1) and is arranged along the length direction of the reserved mounting point (11-a), the moving channel (11-a 2) is used for placing the opening and closing end of the opening and closing unit (4) in the valve cavity and moves, at least two liquid inlet channels (11-a 3) which are symmetrically distributed on two sides of the moving channel (11-a 2) are arranged on the reserved mounting point (11-a), and the liquid inlet channels (11-a 3) are communicated with the valve cavity (11).

3. The pressure regulating valve according to claim 2, wherein: the opening and closing unit (4) comprises a valve seat (41) and a valve core (42), one end of the valve seat (41) is arranged in the inner cavity of the liquid inlet joint (2), the other end of the valve seat is arranged in the placing cavity (11-a 1), one end of the valve core (42) moves in the inner cavity of the valve seat (41), the other end of the valve core passes through the placing cavity (11-a 1) to move in the moving channel (11-a 2), and one end of the valve core (41) moves in the moving channel (11-a 2) to abut against the adjusting unit (5) when liquid medium is prevented from entering the valve cavity (11) so as to keep the liquid blocking state of the opening and closing unit (4).

4. The pressure regulating valve according to claim 3, wherein: the valve seat (41) is arranged in the placing cavity (11-a 1), a placing space (11-a 11) is reserved in the placing cavity, a part of the valve core (42) which is exposed between the valve seat (41) and the moving channel (11-a 2) after entering the moving channel (11-a 2) is arranged in the placing space (11-a 11), and an abutting block (42-a) which is in abutting connection with the inner side surface of the valve seat (41) in a liquid blocking state and in abutting connection with the inner side surface of the placing cavity (11-a 1) in a liquid discharging state is arranged.

5. The pressure regulating valve according to claim 4, wherein: two rows of unloading holes (42-b) are formed in the part, placed in the valve seat (41), of the valve seat (41), at least two diversion channels (41-a) enabling liquid media to enter the inner cavity of the liquid inlet joint (2) are formed in the valve seat (41), and the diversion channels (41-a) are conducted when the unloading holes (42-b) move to the set positions through the valve seat (42).

6. The pressure regulating valve according to claim 5, wherein: the regulating unit (5) comprises a spring (51), a first spring seat (52), a second spring seat (53) and a regulating screw (54), wherein two ends of the spring (51) respectively act on the inner side wall of the first spring seat (52) and the inner side wall of the second spring seat (53), the first spring seat (52) acts on the valve core (42), a plug (52-a) arranged in the moving channel (11-a 2) in a liquid blocking state is arranged at one end close to the valve core (42), the plug (52-a) is abutted with the valve core (42) in the liquid blocking state, the second spring seat (53) acts on a liquid outlet end, and the regulating screw (54) is fixedly arranged on the outer side wall of the second spring seat (53) and penetrates through the liquid return joint (3) to be exposed.

7. The pressure regulating valve according to claim 6, wherein: the second spring seat (53) is provided with a plurality of flow guide through holes (53-a) for guiding the liquid medium entering the valve cavity (11) to the liquid return joint (3).