CN214274605U

CN214274605U - Pressure reducing valve with good anti-blocking effect

Info

Publication number: CN214274605U
Application number: CN202120242533.6U
Authority: CN
Inventors: 陈久幸
Original assignee: Shanghai Yintao Medical Instrument Co ltd
Current assignee: Shanghai Yintao Medical Instrument Co ltd
Priority date: 2021-01-28
Filing date: 2021-01-28
Publication date: 2021-09-24
Anticipated expiration: 2031-01-28

Abstract

The utility model discloses a possesses good relief pressure valve who prevents stifled effect, including valve body and mounting groove, the water inlet has been seted up in the left side of valve body, the inner wall threaded connection of mounting groove has sealed lid, the top fixedly connected with filter screen of sealed lid, bolt fixedly connected with protective housing is passed through at the top of valve body, the top threaded connection of protective housing has adjust knob, the water inlet is kept away from one side threaded connection of valve body has the sealing ring, the sealing ring is kept away from one side threaded connection of water inlet has the inlet tube, the constant head tank has been seted up to the inner wall of inlet tube. This relief pressure valve that possesses good anti-blocking effect through the setting of screen cloth, can filter the fluid before getting into the valve body, filters out great impurity in the fluid, guarantees to get into the interior fluidic cleanness of valve body, sets up through the cooperation of constant head tank and holding ring, can be more convenient fix a position the screen cloth and install, makes things convenient for the washing and the change of later stage to the screen cloth.

Description

Pressure reducing valve with good anti-blocking effect

Technical Field

The utility model relates to a prevent stifled relief pressure valve technical field, specifically be a relief pressure valve that possesses good stifled effect of preventing.

Background

The pressure reducing valve is a valve which reduces the inlet pressure to a certain required outlet pressure by regulation and automatically keeps the outlet pressure stable by the energy of a medium, and from the viewpoint of hydromechanics, the pressure reducing valve is a throttling element with changeable local resistance, namely, the flow rate and the kinetic energy of fluid are changed by changing the throttling area to cause different pressure losses, thereby achieving the purpose of pressure reduction, and then the fluctuation of the pressure behind the valve is balanced with the spring force by the regulation of a control and regulation system, so that the pressure behind the valve is kept constant within a certain error range.

However, the existing pressure reducing valve is easy to be blocked, because the structure inside the pressure reducing valve is complicated, if impurities exist in the fluid, the structure inside the pressure reducing valve can be damaged, and therefore the function of the pressure reducing valve can be damaged.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides a possess the good relief pressure valve who prevents stifled effect has solved the problem of proposing in the above-mentioned background art.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a possesses good relief pressure valve who prevents stifled effect, includes valve body and mounting groove, the water inlet has been seted up in the left side of valve body, the inner wall threaded connection of mounting groove has sealed lid, the top fixedly connected with filter screen of sealed lid, bolt fixedly connected with protective housing is passed through at the top of valve body, the top threaded connection of protective housing has adjust knob, the water inlet is kept away from one side threaded connection of valve body has the sealing ring, the sealing ring is kept away from one side threaded connection of water inlet has the inlet tube, the constant head tank has been seted up to the inner wall of inlet tube, the inner wall swing joint of constant head tank has the holding ring, the inner wall fixedly connected with screen cloth of holding ring.

Optionally, a water outlet is formed in the right side of the valve body, and a flange plate is fixedly connected to one side, far away from the valve body, of the water outlet.

Optionally, one side of the inner wall of the valve body is fixedly connected with a baffle ring, and one side of the inner wall of the valve body is located below the baffle ring and provided with a mounting groove.

Optionally, a first compression spring is fixedly mounted at the bottom of the adjusting knob, and a blocking cover is fixedly mounted at the bottom of the first compression spring.

Optionally, the bottom of the interior of the valve body is slidably connected with an auxiliary plate, and a second compression spring is fixedly mounted at the bottom of the auxiliary plate.

Optionally, one side of the water inlet pipe, which is far away from the sealing ring, is fixedly connected with a flange plate, and a threaded hole is formed in the surface of the flange plate.

(III) advantageous effects

The utility model provides a possess the good relief pressure valve that prevents stifled effect possesses following beneficial effect:

1. this relief pressure valve that possesses good anti-blocking effect through the setting of screen cloth, can filter the fluid before getting into the valve body, filters out great impurity in the fluid, guarantees to get into the interior fluidic cleanness of valve body, sets up through the cooperation of constant head tank and holding ring, can be more convenient fix a position the screen cloth and install, makes things convenient for the washing and the change of later stage to the screen cloth.

2. This relief pressure valve that possesses good anti-blocking effect through the setting of sealing ring, can be convenient carry out sealing connection to water inlet and inlet tube, sets up through the cooperation of sealed lid and filter screen, can carry out further filtration with the fluid that flows into the valve body, makes the fluid cleaner, prevents that the relief pressure valve from damaging because of impurity, prolongs the life of relief pressure valve.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic sectional view of the present invention;

FIG. 3 is a schematic diagram of the structure of the screen of the present invention;

fig. 4 is an enlarged schematic view of a portion a in fig. 2 according to the present invention.

In the figure: 1. a valve body; 2. a water outlet; 3. a water inlet; 4. a baffle ring; 5. mounting grooves; 6. a sealing cover; 7. filtering with a screen; 8. a protective shell; 9. adjusting a knob; 10. a first compression spring; 11. a blocking cover; 12. an auxiliary plate; 13. a second compression spring; 14. a seal ring; 15. a water inlet pipe; 16. positioning a groove; 17. a positioning ring; 18. and (4) screening.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1 to 4, the present invention provides a technical solution: a pressure reducing valve with a good anti-blocking effect comprises a valve body 1 and a mounting groove 5, wherein a water outlet 2 is formed in the right side of the valve body 1, a flange plate is fixedly connected to one side, away from the valve body 1, of the water outlet 2, a water inlet 3 is formed in the left side of the valve body 1, and the device can be connected with a pipeline more conveniently through the matching arrangement of the water outlet 2 and the water inlet 3;

in order to filter the fluid flowing into the valve body 1, a baffle ring 4 is fixedly connected to one side of the inner wall of the valve body 1, an installation groove 5 is formed in one side of the inner wall of the valve body 1 below the baffle ring 4, a sealing cover 6 is in threaded connection with the inner wall of the installation groove 5, and a filter screen 7 is fixedly connected to the top of the sealing cover 6;

in order to adjust the pressure of the pressure reducing valve, a protective shell 8 is fixedly connected to the top of the valve body 1 through a bolt, an adjusting knob 9 is connected to the top of the protective shell 8 through threads, a first compression spring 10 is fixedly installed at the bottom of the adjusting knob 9, a blocking cover 11 is fixedly installed at the bottom of the first compression spring 10, an auxiliary plate 12 is connected to the bottom inside the valve body 1 in a sliding mode, a second compression spring 13 is fixedly installed at the bottom of the auxiliary plate 12, the first compression spring 10 can be pressed down through rotation of the adjusting knob 9, and therefore the pressure jacked up by the blocking cover 11 can be adjusted;

in order to filter the fluid that flows into before the valve body 1, consequently, one side threaded connection who keeps away from valve body 1 at water inlet 3 has sealing ring 14, one side threaded connection who keeps away from water inlet 3 of sealing ring 14 has inlet tube 15, one side fixedly connected with ring flange that sealing ring 14 was kept away from to inlet tube 15, the threaded hole has been seted up on the surface of ring flange, constant head tank 16 has been seted up to inlet tube 15's inner wall, the inner wall swing joint of constant head tank 16 has holding ring 17, the inner wall fixedly connected with screen cloth.

The utility model discloses in, the device's working procedure as follows:

1. screwing the sealing ring 14 onto the water inlet 3 through threads, putting the screen 18 into the positioning groove 16 through the positioning ring 17, screwing the water inlet pipe 15 into the sealing ring 14, connecting the water inlet pipe 15 with a pipeline, and connecting the water outlet 2 with the pipeline;

2. rotating an adjusting knob to adjust the downward pressure of the first compression spring 10 and adjust the output pressure of the pressure reducing valve;

3. periodically unscrewing the sealing cover 6, taking out the filter screen 7 for cleaning or replacing, and screwing the sealing cover 6 tightly;

4. screwing the sealing ring 14 to the water inlet 3, separating the water inlet pipe 15 from the water inlet 3, taking out the screen 18 for cleaning or replacing, putting the screen 18 after the replacement is finished, connecting the water inlet pipe 15 with the water inlet 3, and screwing the sealing ring 14 to the water inlet pipe 15.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a pressure reducing valve that possesses good anti-blocking effect, includes valve body (1) and mounting groove (5), its characterized in that: water inlet (3) have been seted up in the left side of valve body (1), the inner wall threaded connection of mounting groove (5) has sealed lid (6), top fixedly connected with filter screen (7) of sealed lid (6), bolt fixedly connected with protective housing (8) are passed through at the top of valve body (1), the top threaded connection of protective housing (8) has adjust knob (9), keep away from in water inlet (3) one side threaded connection of valve body (1) has sealing ring (14), sealing ring (14) are kept away from one side threaded connection of water inlet (3) has inlet tube (15), constant head tank (16) have been seted up to the inner wall of inlet tube (15), the inner wall swing joint of constant head tank (16) has holding ring (17), the inner wall fixedly connected with screen cloth (18) of holding ring (17).

2. The pressure reducing valve with good anti-blocking effect according to claim 1, characterized in that: the water outlet (2) is formed in the right side of the valve body (1), and a flange plate is fixedly connected to one side, far away from the valve body (1), of the water outlet (2).

3. The pressure reducing valve with good anti-blocking effect according to claim 1, characterized in that: one side fixedly connected with of valve body (1) inner wall keeps off ring (4), one side of valve body (1) inner wall is located keep off the below of ring (4) and seted up mounting groove (5).

4. The pressure reducing valve with good anti-blocking effect according to claim 1, characterized in that: the bottom of the adjusting knob (9) is fixedly provided with a first compression spring (10), and the bottom of the first compression spring (10) is fixedly provided with a blocking cover (11).

5. The pressure reducing valve with good anti-blocking effect according to claim 1, characterized in that: an auxiliary plate (12) is connected to the bottom inside the valve body (1) in a sliding mode, and a second compression spring (13) is fixedly installed at the bottom of the auxiliary plate (12).

6. The pressure reducing valve with good anti-blocking effect according to claim 1, characterized in that: one side of the water inlet pipe (15) far away from the sealing ring (14) is fixedly connected with a flange plate, and the surface of the flange plate is provided with a threaded hole.