CN216555524U

CN216555524U - Check valve with leak protection water structure

Info

Publication number: CN216555524U
Application number: CN202122965290.1U
Authority: CN
Inventors: 李文静
Original assignee: Tianjin Jin'anji Environmental Protection Technology Co ltd
Current assignee: Tianjin Jin'anji Environmental Protection Technology Co ltd
Priority date: 2021-11-29
Filing date: 2021-11-29
Publication date: 2022-05-17
Anticipated expiration: 2031-11-29

Abstract

The utility model relates to the field of one-way valves, in particular to a one-way valve with a water leakage prevention structure, which comprises a valve body, wherein the middle part of the inner wall of the valve body is fixedly connected with a supporting block, the middle part of the supporting block is symmetrically provided with conical grooves, the right side of the supporting block is symmetrically and movably connected with a sliding rod, the middle part of the sliding rod is movably sleeved with a compression spring, and the surface of the sliding rod is movably connected with a sliding block. After the water flow at the left end of the valve body stops being conveyed, the compression spring drives the conical block to be inserted into the conical groove, so that the sealing ring is matched with the inner wall of the conical groove for sealing, and meanwhile, after the sliding rod is rotated to be detached from the supporting block, the conical block is convenient to replace and maintain, and the using effect of the one-way valve is improved; make the sealed in-process of toper piece seal through slider and slide bar cooperation direction, make inside the toper piece can be stabilized accurate the inserting conical groove, and two slide bars are spacing to the toper piece, make pipeline vibrations in-process toper piece can not rock in the inside production of valve body, stability is good.

Description

Check valve with leak protection water structure

Technical Field

The utility model relates to the field of one-way valves, in particular to a one-way valve with a water leakage prevention structure.

Background

Check valves, also known as check valves or check valves, only allow media to flow in the direction from the water inlet to the water outlet, but the media cannot flow back.

After the existing part of check valves are used for a long time, internal sealing elements are abraded, the sealing effect is reduced, and the check valves are inconvenient to replace, so that the normal use of the check valves is influenced; because the pipeline can produce vibrations at the transported liquid in-process, current partial check valve only supports through the spring and presses and seals, poor stability, and the inside sealing member of valve body rocks easily, influences sealed effect.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a check valve with a water leakage prevention structure, which solves the problems in the prior art: 1. the existing part of one-way valves has poor sealing effect, and 2, the existing part of one-way valve sealing elements have poor stability in the installation and use processes. In order to achieve the purpose, the utility model provides the following technical scheme: a check valve with a water leakage preventing structure comprises a valve body, wherein a supporting block is fixedly connected to the middle of the inner wall of the valve body, tapered grooves are symmetrically formed in the middle of the supporting block, sliding rods are symmetrically and movably connected to the right side of the supporting block, a compression spring is movably sleeved in the middle of each sliding rod, sliding blocks are movably connected to the surfaces of the sliding rods, the left sides of the sliding blocks are in lap joint with the right sides of the supporting blocks, and tapered blocks are fixedly connected between the two sliding blocks;

the left end activity of toper piece is pegged graft adjacent the inside of conical groove, the annular has been seted up at the middle part of toper piece, the inside activity of annular has cup jointed the sealing washer, the surface of sealing washer and the inner wall overlap joint of conical groove.

Preferably, a through hole is formed in the middle of the sliding block, the sliding block is connected to the surface of the sliding rod in a sliding mode through the through hole, and a limiting ring is fixedly connected to the right end of the sliding rod.

Preferably, one end of the compression spring is lapped on the side wall of the limit ring, and the other end of the compression spring is lapped on the side wall of the adjacent sliding block.

Preferably, the depth of the conical groove is set to be 1.2 times of the distance between two sides of the conical block, and the middle part of the right side of the conical block is provided with an arc-shaped groove.

Preferably, threaded holes are symmetrically formed in the right side of the supporting block, external threads are formed in the surface of the left end of the sliding rod, and the sliding rod is in threaded connection with the threaded holes through the external threads.

Preferably, two mounting screw holes are symmetrically formed in the two sides of the valve body, and locking screws are movably connected inside the mounting screw holes.

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

according to the utility model, through the matching use of the conical groove, the conical block, the sealing ring and other components, after the water flow at the left end of the valve body stops being conveyed, the compression spring drives the conical block to be inserted into the conical groove, so that the sealing ring is matched with the inner wall of the conical groove for sealing, and meanwhile, after the sliding rod is rotated to be detached from the supporting block, the conical block is convenient to replace and maintain, and the using effect of the check valve is improved.

According to the utility model, through the matching use of the slide rods, the compression spring, the slide block and other parts, the conical block is sealed through the matching guide of the slide block and the slide rod in the sealing process, so that the conical block can be stably and accurately inserted into the conical groove, and the two slide rods limit the conical block, so that the conical block cannot shake in the valve body in the vibration process of the water pipeline, the stability is good, and the sealing effect is improved.

Drawings

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

FIG. 2 is an enlarged view of the structure of FIG. 1 at A in accordance with the present invention;

FIG. 3 is a right side view of the tapered block and slider of the present invention.

In the figure: 1. a valve body; 2. a support block; 3. a tapered groove; 4. a slide bar; 5. a compression spring; 6. a slider; 7. a conical block; 8. a ring groove; 9. a seal ring; 10. a threaded hole; 11. and (4) external threads.

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 obtained by workers skilled in the art without any inventive work based on the embodiments of the present invention, are within the scope of the present invention.

Referring to fig. 1 to 3, the present invention provides a technical solution: the utility model provides a check valve with leak protection water structure, including valve body 1, the middle part fixedly connected with supporting shoe 2 of the inner wall of valve body 1, conical channel 3 has been seted up to the middle part symmetry of supporting shoe 2, the right side symmetry swing joint of supporting shoe 2 has slide bar 4, compression spring 5 has been cup jointed in the middle part activity of slide bar 4, slide bar 4's surperficial swing joint has slider 6, slider 6's left side and supporting shoe 2's right side overlap joint, fixedly connected with conical block 7 between two sliders 6, during the use, conical block 7 seals up the in-process through slider 6 and slide bar 4 cooperation direction, make conical block 7 can stabilize accurate 3 insides of inserting conical channel, and two slide bars 4 carry on spacingly to the position and the direction that conical block 7 removed, make pipeline vibrations in-process conical block 7 can not rock at 1 inside production of valve body, good stability, promote sealed effect.

The left end activity of toper piece 7 is pegged graft in the inside of adjacent bell jar 3, annular 8 has been seted up at the middle part of toper piece 7, sealing washer 9 has been cup jointed in the inside activity of annular 8, the surface of sealing washer 9 and the inner wall overlap joint of bell jar 3, after 1 left end rivers of valve body stopped carrying, compression spring 5 supports and presses slider 6 at slide bar 4 surface slip, two sliders 6 take toper piece 7 to insert inside adjacent bell jar 3, make sealing washer 9 seal with the cooperation of the 3 inner walls of bell jar, the sealed effect that the toper set up can effectively promote whole sealing performance, rotate slide bar 4 simultaneously and dismantle the back from supporting shoe 2, can take off toper piece 7 and slider 6 from two slide bar 4 surfaces, the convenience is changed the maintenance to toper piece 7, promote check valve result of use.

In this embodiment, as shown in fig. 1, 2 and 3, a through hole is formed in the middle of the slider 6, the slider 6 is slidably connected to the surface of the slide bar 4 through the through hole, and a limit ring is fixedly connected to the right end of the slide bar 4.

In this embodiment, as shown in fig. 1 and 2, one end of the compression spring 5 is overlapped on the side wall of the stop collar, and the other end of the compression spring 5 is overlapped on the side wall of the adjacent slide block 6.

In this embodiment, as shown in fig. 1 and 2, the depth of tapered groove 3 is set to be 1.2 times of the distance between tapered block 7 both sides, so that the left end of tapered block 7 can be completely inserted into tapered groove 3, the sealing effect is improved, the arc-shaped groove is formed in the middle of the right side of tapered block 7, and after tapered block 7 is sealed, the impact force of liquid on the surface of tapered block 7 is reduced in the liquid backflow process at the right end of valve body 1.

In this embodiment, as shown in fig. 1 and fig. 2, threaded holes 10 are symmetrically formed in the right side of the supporting block 2, external threads 11 are formed on the surface of the left end of the sliding rod 4, the sliding rod 4 is in threaded connection with the threaded holes 10 through the external threads 11, the sliding rod 4 can be detached from the supporting block 2 by rotating, and the mounting and the detaching are convenient.

In this embodiment, as shown in fig. 1, two mounting screw holes are symmetrically formed in both sides of the valve body 1, and a locking screw is movably connected inside the mounting screw holes.

The use method and the advantages of the utility model are as follows: this check valve with leak protection water structure, the working process as follows:

as shown in fig. 1, 2 and 3, when the water flow at the left end of the valve body 1 stops conveying, the compression spring 5 presses the sliding blocks 6 to slide on the surfaces of the sliding rods 4, the two sliding blocks 6 drive the conical blocks 7 to be inserted into the adjacent conical grooves 3, so that the sealing rings 9 are matched with the inner walls of the conical grooves 3 for sealing, the sealing effect of the conical arrangement can effectively improve the overall sealing performance, and meanwhile, after the sliding rods 4 are rotated to be detached from the supporting blocks 2, the conical blocks 7 and the sliding blocks 6 can be taken down from the surfaces of the two sliding rods 4, so that the conical blocks 7 can be conveniently replaced and maintained, and the using effect of the check valve is improved; during the use, the toper piece 7 is sealed through slider 6 and slide bar 4 cooperation direction in the sealed process, makes inside inserting the bell jar 3 that toper piece 7 can be stable accurate, and two slide bars 4 carry on spacingly to the position and the direction that toper piece 7 removed, makes water pipe vibrations in-process toper piece 7 can not rock in 1 inside productions of valve body, and stability is good, promotes sealed effect.

The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a check valve with leak protection water structure, includes valve body (1), its characterized in that: the middle part of the inner wall of the valve body (1) is fixedly connected with a supporting block (2), the middle part of the supporting block (2) is symmetrically provided with conical grooves (3), the right side of the supporting block (2) is symmetrically and movably connected with a sliding rod (4), the middle part of the sliding rod (4) is movably sleeved with a compression spring (5), the surface of the sliding rod (4) is movably connected with a sliding block (6), the left side of the sliding block (6) is in lap joint with the right side of the supporting block (2), and a conical block (7) is fixedly connected between the two sliding blocks (6);

the left end activity of toper piece (7) is pegged graft adjacent the inside of bell jar (3), annular (8) have been seted up at the middle part of toper piece (7), sealing washer (9) have been cup jointed in the inside activity of annular (8), the surface of sealing washer (9) and the inner wall overlap joint of bell jar (3).

2. The check valve with a water leakage preventing structure as claimed in claim 1, wherein: the middle part of slider (6) has seted up the through-hole, slider (6) pass through-hole sliding connection on the surface of slide bar (4), the right-hand member fixedly connected with spacing ring of slide bar (4).

3. The check valve with a water leakage preventing structure as claimed in claim 2, wherein: one end of the compression spring (5) is lapped on the side wall of the limiting ring, and the other end of the compression spring (5) is lapped on the side wall of the adjacent sliding block (6).

4. The check valve with a water leakage preventing structure as claimed in claim 1, wherein: the depth of the conical groove (3) is 1.2 times of the distance between two sides of the conical block (7), and the middle part of the right side of the conical block (7) is provided with an arc-shaped groove.

5. The check valve with a water leakage preventing structure as claimed in claim 1, wherein: threaded holes (10) are symmetrically formed in the right side of the supporting block (2), external threads (11) are formed in the surface of the left end of the sliding rod (4), and the sliding rod (4) is in threaded connection with the threaded holes (10) through the external threads (11).

6. The check valve with a water leakage preventing structure as claimed in claim 1, wherein: two mounting screw holes are symmetrically formed in the two sides of the valve body (1), and locking screws are movably connected inside the mounting screw holes.