CN216867589U

CN216867589U - Pressure regulating valve with pressure detection function

Info

Publication number: CN216867589U
Application number: CN202121698529.7U
Authority: CN
Inventors: 廖春雄
Original assignee: Hangzhou Fuxin Precision Machinery Co ltd
Current assignee: Hangzhou Fuxin Precision Machinery Co ltd
Priority date: 2021-07-26
Filing date: 2021-07-26
Publication date: 2022-07-01
Anticipated expiration: 2031-07-26

Abstract

The utility model discloses a pressure regulating valve with pressure detection function, comprising: the inner cavity of the valve seat is in a Y-shaped structure; the two first connectors are respectively and fixedly connected to the upper end and the lower end of the left side wall of the valve seat; the two first pressure gauges are respectively screwed on the left sides of the upper end and the lower end of the valve seat, and the first pressure gauges are communicated with the inner cavity of the valve seat; the adjusting mechanism is fixedly connected to the top of the valve seat; the blocking part is fixedly connected to the bottom end of the adjusting mechanism and is inserted into the inner cavity of the valve seat; and the pressure maintaining mechanism is fixedly connected to the right side of the bottom of the valve seat. This pressure regulating valve with pressure detection function when in-service use, possesses fluid conveying pipeline and switches the function, uses more in a flexible way, can satisfy the demand that large-scale pipe-line system used, in addition, regulates and control pressure through compressed nitrogen gas, and compressed nitrogen gas does not receive factors such as temperature and time to influence, and steady voltage ability is strong, and the safety in utilization is high.

Description

Pressure regulating valve with pressure detection function

Technical Field

The utility model relates to the technical field of fluid valves, in particular to a pressure regulating valve with a pressure detection function.

Background

A fluid valve is a valve that controls the flow of a fluid by changing its cross-section or length. The overflow valve belongs to one type of fluid valve, and is generally connected in parallel in a branch of a system to play roles in pressure regulation, pressure stabilization and pressure reduction;

the overflow valve has the greatest characteristic of having a pressure regulation function, a pipeline system is a pipeline network formed by a plurality of pipelines, the existing overflow valves are all one-in one-out two-position one-way, do not have a fluid conveying pipeline switching function, are not flexible enough to use and are difficult to meet the requirements of large pipeline systems, in addition, the overflow valve mainly adopts a screw rod to extrude a spring, the elasticity of the spring is changed to regulate and control the pressure, however, the elastic coefficient of the spring is reduced in the long-term use process of the spring, the pressure stabilizing capacity is reduced, and the use safety is poor.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a pressure regulating valve with a pressure detection function, which at least solves the problems that the prior art can not realize the switching of fluid conveying branches, the use is not flexible enough, and the traditional spring pressure regulating is reduced along with the service life of a spring, and the pressure regulating accuracy is reduced.

In order to achieve the purpose, the utility model provides the following technical scheme: a pressure regulating valve with pressure sensing, comprising: the inner cavity of the valve seat is in a Y-shaped structure; the two first connectors are respectively and fixedly connected to the upper end and the lower end of the left side wall of the valve seat; the first pressure gauges are in two number and are respectively screwed on the left sides of the upper end and the lower end of the valve seat, and the first pressure gauges are communicated with an inner cavity of the valve seat; the adjusting mechanism is fixedly connected to the top of the valve seat; the blocking part is fixedly connected to the bottom end of the adjusting mechanism and is inserted into the inner cavity of the valve seat; the pressure maintaining mechanism is fixedly connected to the right side of the bottom of the valve seat;

the adjustment mechanism includes: the mounting seat is fixedly connected to the top of the valve seat, and threads are arranged on the inner wall of the mounting seat; the first screw is in threaded connection with the inner cavity of the mounting seat; the handle is arranged at the top end of the first screw rod; the limiting sleeve is fixedly connected to the bottom end of the first screw rod; one end of the piston column is embedded in the inner cavity of the limiting sleeve, and the other end of the piston column extends out of the valve seat; the packing is filled at the bottom of the inner cavity of the mounting seat and is in contact with the outer wall of the piston column;

the blocking portion includes: the valve core is fixedly connected to the bottom end of the piston column and embedded in the valve seat; and the flow guide hole is formed in the center of the valve core.

Preferably, the contact position of the limiting sleeve and the piston column is circular.

Preferably, the width of the diversion hole is smaller than the width of the inner cavity solid part of the valve seat.

Preferably, the pressure holding mechanism includes: the shell is fixedly connected to the right side of the bottom of the valve seat and communicated with the inner cavity of the valve seat, a drainage groove is formed in the top of the inner wall of the shell, and two ends of the drainage groove are respectively located on the inner wall and the outer wall of the shell; the supporting plate is fixedly connected to the bottom of the inner cavity of the shell; the cover plate is arranged at the bottom end of the shell; one end of the second screw rod is rotatably arranged at the bottom end of the supporting plate through a bearing, and the other end of the second screw rod and the center position of the cover plate are rotatably arranged through a bearing; the push plate is in threaded connection with the outer wall of the second screw; the support is arranged on the top of the push plate, and the middle part of the support penetrates through the top of the support plate; the first piston is arranged at the top of the bracket and is embedded in the inner cavity of the shell in a matching manner; the positioning assembly is rotatably arranged at the bottom end of the second screw rod through a pin shaft; the compressed nitrogen is filled in the inner cavity of the shell and is positioned at the top of the first piston; the second pressure gauge is in threaded connection with the top of the left side wall of the shell; the second joint is arranged at the corresponding position of the right side wall of the shell and the drainage groove; the second piston is embedded in the top of the inner cavity of the shell in a matched manner; and the limiting ring is fixedly connected to the top end of the inner cavity of the shell and is positioned at the top of the second piston.

Preferably, the positioning assembly comprises: the eccentric wheel is rotatably arranged at the bottom end of the second screw rod through a pin shaft, and the eccentric wheel is contacted with the bottom end of the cover plate through self-rotating torsion to brake the second screw rod; and the handle is arranged on the outer wall of the eccentric wheel.

Preferably, the outer wall of the eccentric wheel is provided with an anti-slip edge.

Compared with the prior art, the utility model has the beneficial effects that: the pressure regulating valve with the pressure detection function has the advantages that the handle is rotated, the first screw rod can be rotated and simultaneously drives the piston column to move upwards or downwards, the valve core can move upwards or downwards, the selective connection of the two first joints is realized, the branch switching purpose is achieved, the positioning component can position the second screw rod after rotation, the bracket can drive the first piston to move upwards or downwards under the driving of the second screw rod, the pressure borne by the second piston is changed by compressing or expanding compressed nitrogen, and further the pressure of fluid is stabilized, when the pressure of the fluid exceeds the pressure of the compressed nitrogen, the second piston moves downwards, the fluid is discharged by the drainage groove, the pressure of the fluid is stably conveyed, therefore, the pressure regulating valve has the function of switching the fluid conveying pipeline during actual use, is more flexible to use, can meet the use requirement of a large pipeline system, and in addition, the pressure is regulated and controlled by the compressed nitrogen, the compressed nitrogen is not influenced by factors such as temperature, time and the like, the pressure stabilizing capacity is strong, and the use safety is high.

Drawings

FIG. 1 is a front sectional view of the present invention;

FIG. 2 is an enlarged view at A;

FIG. 3 is a schematic view of an eccentric wheel.

In the figure: 1. valve seat, 2, first joint, 3, first pressure gauge, 4, adjusting mechanism, 41, mount pad, 42, first screw rod, 43, handle, 44, stop collar, 45, piston post, 46, filler, 5, stop part, 51, valve core, 52, water conservancy diversion hole, 6, pressurize mechanism, 61, shell, 62, drainage groove, 63, backup pad, 64, apron, 65, second screw rod, 66, push pedal, 67, support, 68, first piston, 69, locating component, 691, eccentric wheel, 692, handle, 610, compressed nitrogen gas, 611, second pressure gauge, 612, second joint, 613, second piston, 614, spacing collar.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a pressure regulating valve with a pressure detection function comprises a valve seat 1, a first connector 2, a first pressure gauge 3, an adjusting mechanism 4, a blocking part 5 and a pressure maintaining mechanism 6, wherein the inner cavity of the valve seat 1 is Y-shaped, so that the valve seat 1 is provided with two liquid outlets, the number of the first connectors 2 is two, the first connectors are respectively and fixedly connected to the upper end and the lower end of the left side wall of the valve seat 1, the number of the first pressure gauges 3 is two, the first pressure gauges are respectively screwed on the left sides of the upper end and the lower end of the valve seat 1 and are used for monitoring the pressure of fluid flowing through the valve seat 1, the first pressure gauges 3 are communicated with the inner cavity of the valve seat 1, the adjusting mechanism 4 is fixedly connected to the top of the valve seat 1, the blocking part 5 is fixedly connected to the bottom end of the adjusting mechanism 4, the blocking part 5 is inserted into the inner cavity of the valve seat 1, and the pressure maintaining mechanism 6 is fixedly connected to the right side of the bottom of the valve seat 1;

the adjusting mechanism 4 comprises an installation seat 41, a first screw rod 42, a handle 43, a limit sleeve 44, a piston column 45 and a filler 46, the installation seat 41 is fixedly connected to the top of the valve seat 1, threads are arranged on the inner wall of the installation seat 41, the first screw rod 42 is in threaded connection with the inner cavity of the installation seat 41, when the first screw rod 42 rotates clockwise or counterclockwise, the first screw rod 42 can move upwards or downwards while rotating, a fastening bolt can be in threaded connection with the top of the outer wall of the first screw rod 42 for locking the first screw rod 42, the handle 43 is installed at the top end of the first screw rod 42, the limit sleeve 44 is fixedly connected to the bottom end of the first screw rod 42, one end of the piston column 45 is embedded in the inner cavity of the limit sleeve 44, the other end of the piston column 45 extends out of the valve seat 1, the contact position of the limit sleeve 44 and the piston column 45 is circular, the rotary motion between the piston column 45 and the limit sleeve 44 is ensured, the filler 46 is filled at the bottom of the inner cavity of the installation seat 41, the packing 46 is used for sealing between the piston rod 45 and the mounting seat 41 and is contacted with the outer wall of the piston column 45;

the blocking part 5 comprises a valve core 51 and a flow guide hole 52, the valve core 51 is fixedly connected to the bottom end of the piston column 45, the valve core 51 is embedded in the valve seat 1, the valve core 51 blocks the inner cavity of the valve seat 1, the closing of the inner cavity of the valve seat 1 can be realized, the flow guide hole 52 is arranged in the central position of the valve core 51, and the flow guide hole 52 is used for conducting the inner cavity of the valve seat 1.

Preferably, the width of the diversion hole 52 is smaller than the width of the solid part of the inner cavity of the valve seat 1, so that the valve seat 1 can seal the diversion hole 52, and the inner cavity of the valve seat 1 has a comprehensive sealing function.

Preferably, the pressure maintaining mechanism 6 includes a housing 61, a drainage groove 62, a support plate 63, a cover plate 64, a second screw rod 65, a push plate 66, a bracket 67, a first piston 68, a positioning assembly 69, compressed nitrogen 610, a second pressure gauge 611, a second joint 612, a second piston 613 and a retainer 614, the housing 61 is fixedly connected to the right side of the bottom of the valve seat 1, the housing 61 is communicated with the inner cavity of the valve seat 1, the drainage groove 62 is formed in the top of the inner wall of the housing 61, two ends of the drainage groove 62 are respectively located on the inner wall and the outer wall of the housing 61, fluid in the valve seat 1 can be led out through the drainage groove 62 to reduce fluid pressure, the support plate 63 is fixedly connected to the bottom of the inner cavity of the housing 61, the cover plate 64 is installed at the bottom end of the housing 61, one end of the second screw rod 65 is rotatably installed at the bottom end of the support plate 63 through a bearing, and the other end of the cover plate 64 is rotatably installed through a bearing, when the second screw 65 rotates clockwise or counterclockwise, the screw thread rotation force of the second screw 65 can drive the bracket 66 to move upwards or downwards, the push plate 66 is screwed on the outer wall of the second screw 65, the bracket 67 is installed on the top of the push plate 66, the middle part of the push plate penetrates through the top of the support plate 63, the first piston 68 is installed on the top of the bracket 67 and is adapted to be embedded in the inner cavity of the housing 61, when the first piston 68 moves upwards or downwards, the compressed nitrogen 610 can be compressed or expanded, the pressure of the compressed nitrogen 610 increases or decreases, the positioning assembly 69 is rotatably installed at the bottom end of the second screw 65 through a pin shaft, the compressed nitrogen 610 is filled in the inner cavity of the housing 61 and is located at the top of the first piston 68, the second pressure gauge 611 is screwed on the top of the left side wall of the housing 61 and is used for monitoring the pressure of the compressed nitrogen 610, the second joint 612 is installed at the corresponding position of the right side wall of the housing 61 and the drainage groove 62, the second piston 613 is fitted into the top of the inner cavity of the housing 61, the retainer 614 is fixedly connected to the top end of the inner cavity of the housing 61, and the retainer 614 is located on the top of the second piston 613.

Preferably, the positioning assembly 69 further comprises an eccentric wheel 691 and a handle 692, the eccentric wheel 691 is rotatably mounted on the bottom end of the second screw rod 65 through a pin, the eccentric wheel 691 is contacted with the bottom end of the cover plate 64 through self-rotation torsion to brake the second screw rod 65, the outer wall of the eccentric wheel 691 is provided with an anti-slip rib to prevent the eccentric wheel 691 from slipping after being pressed against the cover plate 64, and the handle 692 is mounted on the outer wall of the eccentric wheel 691.

The detailed connection means is a technique known in the art, and the following mainly describes the working principle and process, and the specific operation is as follows.

Step one, fluid is input from the right side of a valve seat 1, a first connector 2 is connected with a branch, at the moment, a diversion hole 52 is blocked by a solid part at the central position of the valve seat 1, so that the valve seat 1 is in a closed state, when one first connector 2 is required to convey the fluid, a handle 43 is used for driving a first screw 42 to rotate clockwise or anticlockwise, due to the fact that the first screw 42 is meshed with a mounting seat in a threaded mode, the first screw 42 and a limiting sleeve 44 move upwards or downwards, a piston column 45 drives a valve core 51 to move upwards and downwards, when the valve core 51 moves upwards, the diversion hole 52 is communicated with the first connector 2 at the top end, and when the valve core 51 moves downwards, the first connector 2 at the top end is communicated, so that the branch switching is achieved;

step two, when the pressure of the fluid flowing through the valve seat 1 needs to be stabilized, the handle 692 is pulled to enable the eccentric wheel 691 not to contact with the cover plate 64, the second screw rod 65 is controlled to rotate clockwise or anticlockwise, the bracket 67 is driven to drive the first piston 68 to move upwards or downwards under the action of the thread rotating force of the second screw rod 65, the compressed nitrogen 610 is gradually compressed or expanded, the pressure of the compressed nitrogen 610 is displayed on the second pressure gauge 611, and the eccentric wheel 691 is controlled to rotate until the pressure reaches the stabilized fluid pressure, so that the eccentric wheel 691 is tightly pressed on the outer wall of the cover plate 64 by using the torsion force, the second screw rod 65 is braked, and the pressure adjustment is completed;

step three, when the fluid pressure is higher than the pressure of the compressed nitrogen 610, the second piston 613 is pushed to move downwards under the action of the fluid pressure, the drainage groove 62 is opened, fluid can flow out of the drainage groove 62, and when the fluid pressure becomes small, the second piston 613 moves upwards under the action of the pressure of the compressed nitrogen 610 to close the drainage groove 62, so that the fluid pressure stabilization is realized;

this device can realize that fluid delivery branch road switches, in case one of them pipeline damages, can choose for use another branch road, uses more in a flexible way, has replaced traditional spring pressure regulating moreover, guarantees the pressure regulating accuracy, more does benefit to the popularization.

In the description of the present invention, it is to be understood that the terms "bottom", "one end", "middle", "other end", "upper", "one side", "top", "inner", "front", "two ends", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated; also, unless expressly stated or limited otherwise, the terms "fixedly attached," "mounted," "opened," "plugged," "coupled," "screwed," and the like are to be construed broadly and can include, for example, a fixed attachment, a removable attachment, or an integral part; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate agent, and may be used for communicating the inside of two elements or interacting relation of two elements, unless otherwise specifically defined, and the specific meaning of the terms in the present invention can be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A pressure regulating valve with pressure detection function, comprising:

the inner cavity of the valve seat (1) is in a Y shape;

the two first connectors (2) are respectively and fixedly connected to the upper end and the lower end of the left side wall of the valve seat (1);

the two first pressure gauges (3) are respectively in threaded connection with the left sides of the upper end and the lower end of the valve seat (1), and the first pressure gauges (3) are communicated with an inner cavity of the valve seat (1);

the adjusting mechanism (4) is fixedly connected to the top of the valve seat (1);

the blocking part (5) is fixedly connected to the bottom end of the adjusting mechanism (4), and the blocking part (5) is inserted into the inner cavity of the valve seat (1);

the pressure maintaining mechanism (6) is fixedly connected to the right side of the bottom of the valve seat (1);

the adjusting mechanism (4) comprises:

the mounting seat (41) is fixedly connected to the top of the valve seat (1), and threads are arranged on the inner wall of the mounting seat (41);

the first screw rod (42) is screwed in the inner cavity of the mounting seat (41);

a handle (43) attached to the tip of the first screw (42);

the limiting sleeve (44) is fixedly connected to the bottom end of the first screw rod (42);

one end of the piston column (45) is embedded in the inner cavity of the limiting sleeve (44), and the other end of the piston column extends out of the valve seat (1);

the packing (46) is filled at the bottom of the inner cavity of the mounting seat (41), and the packing (46) is in contact with the outer wall of the piston column (45);

the blocking portion (5) includes:

the valve core (51) is fixedly connected to the bottom end of the piston column (45), and the valve core (51) is embedded in the valve seat (1);

and the diversion hole (52) is formed in the center of the valve core (51).

2. The pressure regulating valve with the pressure detection function according to claim 1, wherein: the contact position of the limiting sleeve (44) and the piston column (45) is circular.

3. The pressure regulating valve with the pressure detection function according to claim 1, wherein: the width of the flow guide hole (52) is smaller than that of the inner cavity solid part of the valve seat (1).

4. The pressure regulating valve with the pressure detection function according to claim 1, wherein: the pressure maintaining mechanism (6) includes:

the outer shell (61) is fixedly connected to the right side of the bottom of the valve seat (1), the outer shell (61) is communicated with the inner cavity of the valve seat (1), the top of the inner wall of the outer shell (61) is provided with a drainage groove (62), and two ends of the drainage groove (62) are respectively positioned on the inner wall and the outer wall of the outer shell (61);

the supporting plate (63) is fixedly connected to the bottom of the inner cavity of the shell (61);

a cover plate (64) mounted to the bottom end of the housing (61);

one end of the second screw rod (65) is rotatably arranged at the bottom end of the supporting plate (63) through a bearing, and the other end of the second screw rod and the center position of the cover plate (64) are rotatably arranged through a bearing;

a push plate (66) screwed on the outer wall of the second screw (65);

the bracket (67) is arranged at the top of the push plate (66), and the middle part of the bracket penetrates through the top of the support plate (63);

the first piston (68) is arranged at the top of the bracket (67) and is embedded in the inner cavity of the shell (61) in a matching manner;

a positioning component (69) which is rotatably arranged at the bottom end of the second screw rod (65) through a pin shaft;

compressed nitrogen (610) filled in the inner cavity of the shell (61) and positioned on the top of the first piston (68);

the second pressure gauge (611) is screwed on the top of the left side wall of the shell (61);

the second joint (612) is arranged at the corresponding position of the right side wall of the shell (61) and the drainage groove (62);

a second piston (613) adapted to be embedded in the top of the inner cavity of the housing (61);

and the limiting ring (614) is fixedly connected to the top end of the inner cavity of the shell (61), and the limiting ring (614) is positioned at the top of the second piston (613).

5. The pressure regulating valve with the pressure detection function according to claim 4, wherein: the positioning assembly (69) comprises:

the eccentric wheel (691) is rotatably arranged at the bottom end of the second screw rod (65) through a pin shaft, and the eccentric wheel (691) is contacted with the bottom end of the cover plate (64) through self-rotating torsion to brake the second screw rod (65);

a handle (692) mounted to an outer wall of the eccentric wheel (691).

6. The pressure regulating valve with the pressure detection function according to claim 5, wherein: the outer wall of the eccentric wheel (691) is provided with an anti-slip edge.