CN209909245U

CN209909245U - Check valve convenient to installation

Info

Publication number: CN209909245U
Application number: CN201920876248.2U
Authority: CN
Inventors: 佘永全
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-06-11
Filing date: 2019-06-11
Publication date: 2020-01-07
Anticipated expiration: 2029-06-11

Abstract

The utility model discloses a check valve convenient to installation, including the check valve body, one side of check valve body is provided with the water inlet flange, and one side of water inlet flange is provided with the stopper, the opposite side of check valve body is provided with the delivery port flange, and one side of delivery port flange is provided with the spacing groove, the opposite side of delivery port flange is provided with outlet conduit, and outlet conduit's inside is provided with the bivalve check valve, the internal connection of bivalve check valve has the valve column, and the both sides of valve column all are provided with the valve clack. The utility model discloses a lift check valve that sets up combines together with the stop check valve, can effectually avoid rivers to flow backwards, has improved the availability of check valve greatly, and the spacing groove that the stopper that water inlet flange one side set up and delivery port flange set up can cooperate with the flange at pipeline both ends respectively, can carry on spacingly to the check valve, and the installation of the relevant staff of being convenient for has improved work efficiency greatly, has practiced thrift the time.

Description

Check valve convenient to installation

Technical Field

The utility model relates to the technical field of valves, specifically be a check valve convenient to installation.

Background

The check valve is a valve which can automatically open and close the valve clack by medium flowing, and is used for preventing medium from flowing backwards, and is also called check valve, one-way valve, reverse flow valve and back pressure valve, and its main function is to prevent medium from flowing backwards, prevent the pump and driving motor from reversing and discharge container medium.

However, most of the existing check valves are connected by using a screw nut structure when being installed, and the existing check valves lack a positioning device, so that the installation is very inconvenient, the check valves are mainly used in pipelines with media flowing in one direction at present, the sealing piston on the existing check valve at the water outlet of the water pump only acts through a pressure spring, and the spring elasticity of any spring can fade after being used for a long time, so that the sealing piston cannot completely prevent water flow, and the water flow flows back to the interior of the water inlet pipeline from the water outlet pipeline, and the integral non-return effect of the check valve is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: in order to solve the problems that most of the existing check valves are connected by screw and nut structures during installation, and the existing check valves are lack of positioning devices and inconvenient to install, the check valves convenient to install are provided.

In order to achieve the above object, the utility model provides a following technical scheme: a check valve convenient to install comprises a check valve body, a water inlet flange is arranged on one side of the check valve body, and one side of the water inlet flange is provided with a limiting block, the other side of the check valve body is provided with a water outlet flange, and one side of the water outlet flange is provided with a limit groove, the other side of the water outlet flange is provided with a water outlet pipeline, and a bivalve check valve is arranged in the water outlet pipeline, a valve column is connected in the bivalve check valve, and both sides of the valve column are provided with valve clacks, both ends of the double-clack check valve are provided with clamping blocks, both sides of the inside of each clamping block are provided with second return springs, one side of the second return spring is connected with a chuck penetrating to the outside of the clamping block, two ends of the inside of the water outlet pipeline are both provided with a first clamping groove, and the two sides in the first clamping groove are provided with second clamping grooves, and the second clamping grooves are matched with the clamping heads.

Preferably, one side of the water inlet flange and one side of the water outlet flange are both provided with through holes, and the through holes are respectively positioned in the limiting blocks and the limiting grooves.

Preferably, a first return spring is arranged at the middle position outside the valve column, and the first return spring is matched with the valve clack.

Preferably, the top of the check valve body is provided with an upper flange, and both sides of the top of the upper flange are provided with studs.

Preferably, one side of the interior of the check valve body is provided with a water inlet pipe, and the other side of the water inlet pipe is provided with a piston.

Preferably, the top of the piston is provided with a limiting column, and the outer side of the limiting column is provided with a pressure spring.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a lift check valve that sets up combines together with the formula check valve that ends, can effectually avoid rivers to flow backwards, the availability of check valve has been improved greatly, and the spacing groove that the stopper that water inlet flange one side set up and the delivery port flange set up can cooperate with the flange at pipeline both ends respectively, can carry on spacingly to the check valve, the installation of the relevant staff of being convenient for, work efficiency is greatly improved, time is saved, the fixture block that sets up on the bivalve check valve simultaneously can combine together with the first draw-in groove of outlet conduit inner wall, make the bivalve check valve can fix the inside at outlet conduit, and the puzzlement that can effectual solution installation, work efficiency is improved, installation in the future facilitates.

Drawings

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

FIG. 2 is a schematic structural view of the double-flap check valve of the present invention;

FIG. 3 is a schematic structural view of the water inlet flange of the present invention;

fig. 4 is a schematic structural view of the water outlet flange of the present invention;

fig. 5 is a schematic view of the clamping block and the first clamping groove of the present invention.

In the figure: 1. a check valve body; 2. a water inlet pipe; 3. a water inlet flange; 4. a water outlet pipeline; 5. a water outlet flange; 6. a double-flap check valve; 7. a piston; 8. a limiting column; 9. a pressure spring; 10. an upper flange; 11. a stud; 12. a valve flap; 13. a first return spring; 14. a spool; 15. a clamping block; 16. a first card slot; 17. clamping a head; 18. a second card slot; 19. a second return spring; 20. a through hole; 21. a limiting block; 22. a limiting groove.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, a check valve convenient to install includes a check valve body 1, a water inlet flange 3 is disposed on one side of the check valve body 1, a limiting block 21 is disposed on one side of the water inlet flange 3, a water outlet flange 5 is disposed on the other side of the check valve body 1, a limiting groove 22 is disposed on one side of the water outlet flange 5, a water outlet pipe 4 is disposed on the other side of the water outlet flange 5, a two-piece check valve 6 is disposed inside the water outlet pipe 4, a valve post 14 is connected inside the two-piece check valve 6, valve flaps 12 are disposed on both sides of the valve post 14, clamping blocks 15 are disposed at both ends of the two-piece check valve 6, second return springs 19 are disposed on both sides of the inside of the clamping blocks 15, a clamping head 17 penetrating to the outside of the clamping blocks 15 is connected to one side of the second return springs 19, first, and both sides of the interior of the first clamping groove 16 are provided with second clamping grooves 18, and the second clamping grooves 18 are matched with the clamping heads 17.

The utility model discloses a rising-and-falling check valve that sets up combines together with the stop check valve, can effectually avoid rivers to flow backwards, has improved the availability of check valve greatly, and the spacing groove 22 that stopper 21 that 3 one sides of water inlet flange set up and delivery port flange 5 set up can cooperate in the flange at pipeline both ends respectively, can carry on spacingly to the check valve, and the installation of the relevant staff of being convenient for has improved work efficiency greatly.

Please refer to fig. 1, 2 and 5, a through hole 20 is disposed on one side of the water inlet flange 3 and the water outlet flange 5, the through hole 20 is respectively disposed inside the limiting block 21 and the limiting groove 22, a first return spring 13 is disposed at the middle position of the outer side of the valve stem 14, and the first return spring 13 is matched with the valve flap 12.

This kind of check valve convenient to installation can combine together with the first draw-in groove 16 of outlet conduit 4 inner wall through the fixture block 15 that sets up on the bivalve check valve 6 for bivalve check valve 6 can be fixed in the inside of going out outlet conduit 4, and can the effectual puzzlement of solving the installation, has improved work efficiency.

Please refer to fig. 1, an upper flange 10 is disposed on the top of the check valve body 1, and studs 11 are disposed on both sides of the top of the upper flange 10.

The check valve convenient to install can be matched with the stud 11 through the upper flange 10, and not only can be conveniently detached, but also leakage of water flow can be avoided.

Please refer to fig. 1, a water inlet pipe 2 is disposed at one side of the interior of the check valve body 1, a piston 7 is disposed at the other side of the water inlet pipe, a limiting post 8 is disposed at the top of the piston 7, and a pressure spring 9 is disposed at the outer side of the limiting post 8.

This kind of check valve convenient to installation can be impacted by rivers through piston 7 and rises, and compression spring 9 only can upwards compress under spacing post 8's effect, and the gap can appear in the junction of inlet channel 2 and outlet conduit 4 this moment, can make rivers get into outlet conduit 4's inside.

The working principle is as follows: firstly, the check valve body 1 is installed at a proper position inside a pipeline, the limiting block 21 on one side of the water inlet flange 3 is matched with the groove on one side of the pipeline, and the limiting groove 22 on one side of the water outlet flange 5 is matched with the limiting plate on the other side of the pipeline, so that the check valve body 1 is installed inside the pipeline, the water inlet pipeline 2 and the water outlet pipeline 4 can be well distinguished, and installation errors are avoided, when water flows into the water inlet pipeline 2, the piston 7 can be impacted and lifted by the water flow, at the moment, the pressure spring 9 only upwards compresses under the action of the limiting column 8, at the moment, a gap can be formed at the joint of the water inlet pipeline 2 and the water outlet pipeline 4, the water flows into the water outlet pipeline 4 and begins to flow into the double-flap check valve 6, the valve flap 12 begins to be opened under stress, at the moment, the first return spring, when not having rivers, pressure spring 9 drives piston 7 downstream, and close inlet channel 2 and outlet conduit 4's junction, first reset spring 13 drives valve clack 12 rotatory simultaneously, valve clack 12 begins to close, when needs are changed double-disc check valve 6, can extract fixture block 15 from first draw-in groove 16 this moment, dop 17 contracts to the inside of fixture block 15 through second reset spring 19 this moment, the back is extracted to fixture block 15, dop 17 extends to the outside of fixture block 15 through second reset spring 19 once more, the completion is to the dismantlement and the change of double-disc check valve 6.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. A check valve convenient to installation, includes check valve body (1), its characterized in that: one side of the check valve body (1) is provided with a water inlet flange (3), one side of the water inlet flange (3) is provided with a limiting block (21), the other side of the check valve body (1) is provided with a water outlet flange (5), one side of the water outlet flange (5) is provided with a limiting groove (22), the other side of the water outlet flange (5) is provided with a water outlet pipeline (4), a double-disc check valve (6) is arranged inside the water outlet pipeline (4), the inside of the double-disc check valve (6) is connected with a valve post (14), both sides of the valve post (14) are provided with valve flaps (12), both ends of the double-disc check valve (6) are provided with clamping blocks (15), both sides of the inside of the clamping blocks (15) are provided with second reset springs (19), one side of each second reset spring (19) is connected with a clamping head (17) penetrating through the outside, the water outlet pipe is characterized in that first clamping grooves (16) are formed in two ends of the interior of the water outlet pipe (4), second clamping grooves (18) are formed in two sides of the interior of the first clamping grooves (16), and the second clamping grooves (18) are matched with clamping heads (17).

2. An easy to install check valve as defined in claim 1, wherein: one side of the water inlet flange (3) and one side of the water outlet flange (5) are both provided with through holes (20), and the through holes (20) are respectively positioned inside the limiting blocks (21) and the limiting grooves (22).

3. An easy to install check valve as defined in claim 1, wherein: a first return spring (13) is arranged in the middle of the outer side of the valve column (14), and the first return spring (13) is matched with the valve clack (12).

4. An easy to install check valve as defined in claim 1, wherein: the check valve is characterized in that an upper flange (10) is arranged at the top of the check valve body (1), and studs (11) are arranged on two sides of the top of the upper flange (10).

5. An easy to install check valve as defined in claim 1, wherein: one side of the interior of the check valve body (1) is provided with a water inlet pipeline (2), and the other side of the water inlet pipeline is provided with a piston (7).

6. An easy to install check valve as defined in claim 5, wherein: the top of the piston (7) is provided with a limiting column (8), and the outer side of the limiting column (8) is provided with a pressure spring (9).