CN216382697U

CN216382697U - Check valve for hydraulic engineering

Info

Publication number: CN216382697U
Application number: CN202121832941.3U
Authority: CN
Inventors: 李文军; 杨云林; 朱德明; 巫家盛
Original assignee: Guangdong Shaozheng Construction Engineering Co ltd
Current assignee: Guangdong Shaozheng Construction Engineering Co ltd
Priority date: 2021-08-06
Filing date: 2021-08-06
Publication date: 2022-04-26
Anticipated expiration: 2031-08-06

Abstract

The utility model discloses a check valve for hydraulic engineering, which belongs to the technical field of check valves and comprises a valve body and a water inlet pipe, wherein the bottom of the valve body is provided with the water inlet pipe, the water inlet pipe is hermetically connected with the valve body, one end of the water inlet pipe is provided with a first fixing ring, the first fixing ring is fixedly connected with the water inlet pipe, one side of the first fixing ring is provided with a first fixing hole, the first fixing hole is embedded in the surface of the first fixing ring, one side of the first fixing ring is provided with a second sealing gasket, the top of the water inlet pipe is provided with a first reinforcing rod, the first reinforcing rod and the water inlet pipe are fixed through welding, one end of the water inlet pipe is provided with a clamping groove, one side of the clamping groove is provided with a first sealing gasket, the first sealing gasket is made of rubber, the clamping groove is arranged to fix a valve clack, the valve clack is more stable, the situation of deviation cannot occur, and the sealing of the valve clack and the water inlet pipe is realized through the first sealing gasket, the sealing performance of the check valve is further improved.

Description

Check valve for hydraulic engineering

Technical Field

The utility model belongs to the technical field of check valves, and particularly relates to a check valve for hydraulic engineering.

Background

The check valve is a valve with a circular valve clack and acts by self weight and medium pressure to block the medium from flowing backwards. It belongs to the automatic valve category, also called check valve, reflux valve or isolation valve. The valve clack motion mode is divided into lifting type and swing type. The lift check valve is similar in structure to the stop valve and only lacks a valve rod that drives the valve flap. The medium flows in from the inlet end and flows out from the outlet end.

The existing check valve for hydraulic engineering also has partial defects, the sealing performance of most check valves is not good, the service life is long, the water leakage condition can occur at the joint of the check valve and the water pipe, the looseness easily occurs at the joint of the valve clack and the water inlet, and the reverse flow condition occurs, so that the normal use of the check valve is influenced, and therefore the check valve for hydraulic engineering is provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a check valve for hydraulic engineering, which aims to solve the problems that the existing check valve for hydraulic engineering in the background art has partial defects, most of the check valves have poor sealing performance, the connection part of the check valve and a water pipe is likely to leak water after long-term use, and the connection part of a valve flap and a water inlet is easy to loosen and generate backflow, so that the normal use of the check valve is influenced.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a check valve for hydraulic engineering, includes valve body and inlet tube, the bottom of valve body is equipped with the inlet tube, inlet tube and valve body sealing connection, the one end of inlet tube is equipped with first retainer plate, first retainer plate and inlet tube fixed connection, one side of first retainer plate is equipped with first fixed orifices, first fixed orifices inlays the surface of establishing at first retainer plate, one side of first retainer plate is equipped with the sealed pad of second, the top of inlet tube is equipped with first anchor strut, first anchor strut passes through welded fastening with the inlet tube, the one end of inlet tube is equipped with the draw-in groove, one side of draw-in groove is equipped with first sealed the pad, first sealed pad is made by the rubber material.

Preferably, the top of valve body is equipped with the fixed block, fixed block and valve body fixed connection, the top of fixed block is equipped with the valve gap, valve gap and fixed block pass through the screw fixation.

Preferably, the bottom of valve gap is equipped with the telescopic link, telescopic link and valve gap fixed connection, one side of telescopic link is equipped with the spacing loop bar, spacing loop bar and telescopic link are fixed through alternating.

Preferably, the middle part of telescopic link is equipped with the spring, the surface at the telescopic link is established to the spring housing, the one end of telescopic link is equipped with sealed piece, sealed piece and first sealed sealing gasket sealing connection.

Preferably, the bottom of the sealing block is provided with a rubber pad, the rubber pad is fixedly connected with the sealing block, and one side of the valve body is provided with a water outlet pipe.

Preferably, one side of the water outlet pipe is provided with a second reinforcing rod, and one end of the second reinforcing rod is fixed with the valve body through welding.

Preferably, one end of the water outlet pipe is provided with a second fixing ring, the second fixing ring is fixedly connected with the water outlet pipe, and one side of the second fixing ring is provided with a second fixing hole.

Compared with the prior art, the utility model has the beneficial effects that:

1. through the first retainer plate and the first fixed orifices of design, accomplish the fixed of water pipe and inlet tube, sealed through the second that is equipped with, the sealed pad of water pipe and inlet tube has been realized, make its difficult condition that leaks that appears, draw-in groove through being equipped with, the fixed of valve clack has been realized, make the valve clack more stable, the condition of skew can not appear, sealed pad through the first that is equipped with, the sealed of valve clack and inlet tube has been realized, the leakproofness of this check valve has further been improved, current hydraulic engineering check valve still has partial defect, most check valve leakproofness is not very good, the live time is of a specified duration, the condition of leaking can probably appear in check valve and water piping connection, and the junction of valve clack and water inlet appears becoming flexible easily, the condition against the current appears, thereby influence the problem of the normal use of check valve.

2. Through the fixed block of design, realized the fixed of valve gap to improve the stability at check valve top, made it can not appear not hard up when water pressure is great, through the valve gap that is equipped with, made things convenient for the maintenance of check valve, when the inside trouble that breaks down of valve body, can open the valve gap, maintain it, improved the convenience, solved the comparatively difficult problem of current check valve maintenance.

Drawings

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

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

FIG. 3 is a schematic plan view of the present invention;

FIG. 4 is a schematic cross-sectional view of the present invention;

fig. 5 is an enlarged schematic view of a portion a of fig. 4 according to the present invention.

In the figure: 1. a valve body; 2. a water inlet pipe; 3. a first retainer ring; 4. a first fixing hole; 5. a second gasket; 6. a first reinforcing bar; 7. a card slot; 8. a first gasket; 9. a fixed block; 10. a valve cover; 11. a telescopic rod; 12. a limiting sleeve rod; 13. a spring; 14. a sealing block; 15. a rubber pad; 16. a water outlet pipe; 17. A second reinforcing bar; 18. a second retainer ring; 19. and a second fixing hole.

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. 1-5, the present invention provides a technical solution: the utility model provides a check valve for hydraulic engineering, including valve body 1 and inlet tube 2, the bottom of valve body 1 is equipped with inlet tube 2,

inlet tube

2 and 1 sealing connection of valve body, the one end of inlet tube 2 is equipped with first retainer plate 3,

first retainer plate

3 and 2 fixed connection of inlet tube, one side of first retainer plate 3 is equipped with first fixed orifices 4, first fixed orifices 4 inlays and establishes the surface at first retainer plate 3, one side of first retainer plate 3 is equipped with the sealed pad 5 of second, the top of inlet tube 2 is equipped with first anchor strut 6, first anchor strut 6 and inlet tube 2 pass through welded fastening, the one end of inlet tube 2 is equipped with draw-in groove 7, one side of draw-in groove 7 is equipped with first sealed pad 8, first sealed pad 8 is made by the rubber material.

In the embodiment, when the check valve is used, the water pipe and the water inlet pipe 2 are fixed through the first fixing ring 3 and the first fixing hole 4, the water pipe and the water inlet pipe 2 are sealed through the second sealing gasket 5, the water pipe and the water inlet pipe 2 are not easy to leak, the valve clack is fixed through the clamping groove 7, the valve clack is more stable, the deviation condition can not occur, the sealing of the valve clack and the water inlet pipe 2 is realized through the first sealing gasket 8, the sealing performance of the check valve is further improved, partial defects of the existing hydraulic engineering check valve are overcome, the sealing performance of most check valves is not good, the service life is long, the water leakage condition can occur at the joint of the check valve and the water pipe, the joint of the valve clack and the water inlet is easy to loosen, and the backflow condition occurs, thereby affecting the normal use of the check valve.

Specifically, the top of the valve body 1 is provided with a fixing block 9, the fixing block 9 is fixedly connected with the valve body 1, the top of the fixing block 9 is provided with a valve cover 10, and the valve cover 10 and the fixing block 9 are fixed through screws.

In this embodiment, through the fixed block 9 that is equipped with, realized the fixed of valve gap 10 to improve the stability at check valve top, make it can not appear becoming flexible when water pressure is great, through the valve gap 10 that is equipped with, made things convenient for the maintenance of check valve, when 1 inside trouble of valve body, can open valve gap 10, maintain it, improved the convenience.

Specifically, the bottom of valve gap 10 is equipped with telescopic link 11, telescopic link 11 and valve gap 10 fixed connection, and one side of telescopic link 11 is equipped with spacing loop bar 12, and spacing loop bar 12 and telescopic link 11 are fixed through alternating.

In this embodiment, through the telescopic link 11 that is equipped with, realized opening and closing of check valve, during the use, need not manual operation, alright open according to the required condition and close, it is more convenient to use, through the stop collar pole 12 that is equipped with, can protect telescopic link 11, makes it difficult emergence warp.

Specifically, the middle part of the telescopic rod 11 is provided with a spring 13, the spring 13 is sleeved on the surface of the telescopic rod 11, one end of the telescopic rod 11 is provided with a sealing block 14, and the sealing block 14 is in sealing connection with the first sealing gasket 8.

In this embodiment, through the spring 13 that is equipped with, realized the automatic function of kick-backing of telescopic link 11, improved the performance of check valve, through the sealed piece 14 that is equipped with, realized the sealed of valve clack and 2 one ends of inlet tube.

Specifically, the bottom of the sealing block 14 is provided with a rubber pad 15, the rubber pad 15 is fixedly connected with the sealing block 14, and one side of the valve body 1 is provided with a water outlet pipe 16.

In this embodiment, when water pressure withdraws, spring 13 drives telescopic link 11 tensile to drive sealed piece 14 and descend, and then drive rubber pad 15 card and go into draw-in groove 7, accomplish closing of check valve.

Specifically, one side of the water outlet pipe 16 is provided with a second reinforcing rod 17, and one end of the second reinforcing rod 17 is fixed with the valve body 1 through welding.

In this embodiment, the outlet pipe 16 is reinforced by the second reinforcing rod 17, the outlet pipe 16 may be deformed when being under a large water pressure for a long time, and the second reinforcing rod 17 may prolong the service life of the outlet pipe 16.

Specifically, one end of the water outlet pipe 16 is provided with a second fixing ring 18, the second fixing ring 18 is fixedly connected with the water outlet pipe 16, and one side of the second fixing ring 18 is provided with a second fixing hole 19.

In this embodiment, through second retainer plate 18 and the second fixed orifices 19 that are equipped with, realized the fixed of this check valve and external water pipe, the installation is simple swift, has improved work efficiency.

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. The utility model provides a check valve for hydraulic engineering, includes valve body (1) and inlet tube (2), its characterized in that: the bottom of the valve body (1) is provided with a water inlet pipe (2), the water inlet pipe (2) is hermetically connected with the valve body (1), one end of the water inlet pipe (2) is provided with a first fixing ring (3), the first fixing ring (3) is fixedly connected with the water inlet pipe (2), one side of the first fixing ring (3) is provided with a first fixing hole (4), the first fixing hole (4) is embedded in the surface of the first fixing ring (3), a second sealing gasket (5) is arranged on one side of the first fixing ring (3), a first reinforcing rod (6) is arranged at the top of the water inlet pipe (2), the first reinforcing rod (6) and the water inlet pipe (2) are fixed by welding, one end of the water inlet pipe (2) is provided with a clamping groove (7), one side of draw-in groove (7) is equipped with first sealed pad (8), first sealed pad (8) are made by the rubber material.

2. The check valve for hydraulic engineering of claim 1, wherein: the top of valve body (1) is equipped with fixed block (9), fixed block (9) and valve body (1) fixed connection, the top of fixed block (9) is equipped with valve gap (10), valve gap (10) and fixed block (9) pass through the screw fixation.

3. The check valve for hydraulic engineering of claim 2, wherein: the bottom of valve gap (10) is equipped with telescopic link (11), telescopic link (11) and valve gap (10) fixed connection, one side of telescopic link (11) is equipped with spacing loop bar (12), spacing loop bar (12) and telescopic link (11) are fixed through alternating.

4. The check valve for hydraulic engineering of claim 3, wherein: the middle part of telescopic link (11) is equipped with spring (13), the surface at telescopic link (11) is established to spring (13) cover, the one end of telescopic link (11) is equipped with sealed piece (14), sealed piece (14) and first sealed pad (8) sealing connection.

5. The check valve for hydraulic engineering of claim 4, wherein: the bottom of the sealing block (14) is provided with a rubber pad (15), the rubber pad (15) is fixedly connected with the sealing block (14), and one side of the valve body (1) is provided with a water outlet pipe (16).

6. The check valve for hydraulic engineering of claim 5, wherein: one side of the water outlet pipe (16) is provided with a second reinforcing rod (17), and one end of the second reinforcing rod (17) is fixed with the valve body (1) through welding.

7. The check valve for hydraulic engineering of claim 6, wherein: one end of the water outlet pipe (16) is provided with a second fixing ring (18), the second fixing ring (18) is fixedly connected with the water outlet pipe (16), and one side of the second fixing ring (18) is provided with a second fixing hole (19).