CN216200630U

CN216200630U - High leakproofness butterfly valve with shock-absorbing function

Info

Publication number: CN216200630U
Application number: CN202122615436.XU
Authority: CN
Inventors: 吴承滨; 吴承艺; 王巧龙
Original assignee: YONGXIU VALVE CO LTD
Current assignee: YONGXIU VALVE CO LTD
Priority date: 2021-10-28
Filing date: 2021-10-28
Publication date: 2022-04-05
Anticipated expiration: 2031-10-28

Abstract

The utility model relates to the technical field of valves, and provides a high-tightness butterfly valve with a damping function, which has the advantages of reasonable structural design, simplicity and easiness in operation, and capability of conveniently reducing the vibration generated by the water hammer effect of a valve plate due to the reverse action of water flow when the valve plate is closed.

Description

High leakproofness butterfly valve with shock-absorbing function

Technical Field

The utility model relates to the technical field of valves, in particular to a high-sealing butterfly valve with a damping function.

Background

The use of valves is more and more diversified, and common valves include butterfly valves, ball valves and stop valves, and are divided into manual and electric. The butterfly valve is a common flow control device, has strong advantages in water pipe flow control, and is widely applied to flow control of various large pipelines. The existing butterfly valve still has certain defects when in use, the valve plate can cause the increase of the pressurized water at the water inlet end when closed, and the reverse action after the water flow impacts the valve plate produces water hammer to shake the valve body and the pipeline, thereby influencing the normal use of the pipeline and the valve in the past.

The present invention has been made to solve the above problems.

SUMMERY OF THE UTILITY MODEL

Therefore, aiming at the problems, the utility model provides the butterfly valve with high sealing performance and the damping function, which has the advantages of reasonable structural design, simplicity and easiness in operation, and capability of conveniently slowing down the reverse action of water flow when the valve plate is closed and reducing the vibration generated by the water hammer effect of the valve plate.

In order to solve the technical problems, the utility model adopts the technical scheme that the high-sealing butterfly valve with the damping function comprises a valve body, a valve plate and a valve rod, wherein a water passing channel is formed in the valve body, the valve plate is rotatably arranged in the water passing channel, a rotating channel communicated with the water passing channel is formed in the valve body, the valve rod penetrates through the rotating channel to be connected with the valve plate, a driving piece for driving the valve rod to rotate is arranged on the valve rod, more than one mounting channel is formed in the valve plate along the direction vertical to the valve plate, the mounting channel is provided with a sleeve, the left end of the sleeve is arranged on the valve plate, the right end of the sleeve penetrates through the valve plate and is arranged on one side of the water outlet end in the water passing channel, a sliding channel is formed in the right direction of the left end surface of the sleeve, the inner wall of the sliding channel is a smooth mirror surface, the utility model discloses a slide valve, including slide channel, slider outer wall, sleeve right-hand member portion, slider position, the interior laminating inner wall of slide channel can slide and be provided with the slider, the slider outer wall is glossy mirror surface, sleeve right-hand member portion is close to set up a plurality of first holes of permeating water on the valve plate position, the slider cunning moves extremely can seal during the sleeve right-hand member portion first hole of permeating water, the sleeve right-hand member portion with be provided with the resetting means who is used for preventing that the slider from breaking away from the sleeve and making the slider reset between the slider bottom, be provided with the hydraulic pressure relief device of end of intaking when being used for reducing the valve plate closure on the slider, be provided with on the sleeve and be used for the restriction the sleeve breaks away from the stop device of erection channel, the valve plate with be provided with the sealing device who is used for strengthening the degree of closure between valve plate and the valve body between the valve body.

The further improvement is that: the limiting device comprises a limiting convex ring arranged on the outer wall of the left end of the sleeve, and a limiting groove matched with the limiting convex ring is formed in the valve plate.

The further improvement is that: the reset device comprises a reset spring, one end of the reset spring is arranged on the inner wall of the right end part of the sleeve, and the other end of the reset spring is arranged on the sliding block.

The further improvement is that: the pressure reducing device comprises a cavity which is arranged on the sliding block rightwards along the left end face, and a second water permeable hole corresponding to the first water permeable hole is formed in the right end portion of the cavity.

The further improvement is that: the valve plate comprises first valve plate, second valve plate.

The further improvement is that: sealing device includes first installing port, second installing port have been seted up respectively on first valve plate, second valve plate and the closed side edge of valve body, first installing port forms the mounting groove with the second installing port, the mounting groove is T word groove, the width of mounting groove bottom is greater than the width of notch, the mounting groove is provided with the elastic sealing strip.

The further improvement is that: the bottom of the elastic sealing strip is attached to the mounting groove, and a closed groove is formed in the valve body, wherein the top of the elastic sealing strip can stretch into the closed groove in a separated mode.

The further improvement is that: the two sides of the elastic sealing strip between the mounting groove and the closed groove are respectively provided with an arc-shaped groove which is concavely arranged.

The further improvement is that: the driving piece is a driving hand wheel.

By adopting the technical scheme, the utility model has the beneficial effects that: the utility model has the following advantages:

1. the sleeve and the sliding block are arranged on the valve plate, the space of the water inlet end of the valve body can be enlarged through the rightward sliding of the sliding block, the water pressure of the water inlet end is relieved, meanwhile, a part of water body acting force can be consumed in the process of overcoming the reset spring to push the sliding block to slide, the water hammer effect is relieved, the vibration of a pipeline and a valve is relieved, and the service life of the pipeline and the valve is prolonged.

2. In the process that the slider slided to the right, the hole of permeating water of second can be released the water pressure of further lightening the end of intaking with the first hole coincidence of permeating water to intaking some water, and slow down the water hammer effect.

3. The valve body is internally provided with a closed groove matched with the elastic sealing strip on the valve plate, and the free end of the elastic sealing strip extends into the closed groove when the valve plate is closed, so that the sealing degree between the elastic sealing strip and the valve body is improved, and the sealing effect is enhanced.

4. The arc-shaped groove arranged on the elastic sealing strip is beneficial to the deformation of the free end of the elastic sealing strip and the free end of the elastic sealing strip stretches into and breaks away from the closed groove.

Drawings

Fig. 1 is a schematic structural diagram of a high-sealability butterfly valve with a shock absorption function according to an embodiment of the present invention.

Fig. 2 is a schematic view of an internal structure of a high-sealability butterfly valve with a shock absorption function according to an embodiment of the present invention.

Fig. 3 is a schematic view of the internal structure of a valve body of a high-sealing butterfly valve with a shock absorption function according to an embodiment of the present invention.

Fig. 4 is a schematic structural diagram of a valve plate in a high-tightness butterfly valve with a shock absorption function according to an embodiment of the utility model.

Fig. 5 is an enlarged view of a portion a of the high-sealability butterfly valve with a shock-absorbing function according to the embodiment of the present invention shown in fig. 4.

Detailed Description

The utility model will now be further described with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1 to 5, the embodiment of the utility model discloses a high-sealing butterfly valve with a damping function, which includes a valve body 10, a valve plate 11, and a valve rod, where the valve plate is composed of a first valve plate 111 and a second valve plate 112, a water passing channel 12 is formed in the valve body 10, the valve plate is rotatably disposed in the water passing channel 12, a rotation channel communicated with the water passing channel 12 is formed in the valve body 10, the valve rod passes through the rotation channel and is connected with the valve plate, a driving member for driving the valve rod to rotate is disposed on the valve rod, and the driving member is a driving hand wheel 13. The valve plate is symmetrically provided with two mounting channels 14 along the direction vertical to the valve plate, the mounting channels 14 are provided with a sleeve 15, the left end of the sleeve 15 is arranged on the valve plate, the right end of the sleeve 15 penetrates out of the valve plate and is arranged in the water passing channel 12 and positioned on one side of the water outlet end, the sleeve 15 is provided with a sliding channel 16 along the left end surface towards the right, the inner wall of the sliding channel 16 is a smooth mirror surface, a sliding block 17 is arranged on the inner fit wall of the sliding channel 16 in a sliding way, the outer wall of the sliding block 17 is a smooth mirror surface, the right end part of the sleeve 15 is provided with a plurality of first water permeable holes 18 close to the valve plate, the sliding block 17 can seal the first water permeable holes 18 when sliding to the right end part of the sleeve 15, and a reset device for preventing the sliding block 17 from separating from the sleeve 15 and resetting the sliding block 17 is arranged between the right end part of the sleeve 15 and the bottom of the sliding block 17, resetting means includes reset

spring

19, 19 one end of reset spring set up in on the sleeve 15 right-hand member inner wall, the other end set up in on the slider 17, offer on the sleeve 15 right-hand member portion and be used for the installation reset spring 19's first mounting groove 2920, be provided with on the slider 17 and be used for the installation reset spring 19's the protruding 21 of installation, offer the second mounting groove 2922 that is used for installing reset spring 19 on the protruding 21 of installation, 19 one end of reset spring set up in the first mounting groove 2920, the other end set up in the second mounting groove 2922, the protruding 21 protractile of installation is in the first mounting groove 2920.

Be provided with on the slider 17 and be used for reducing the water-intaking and hold hydraulic pressure relief device when the valve plate is closed, pressure relief device includes to set up right along the left end face cavity 23 on the slider 17, cavity 23 right-hand member portion is seted up and is permeated water hole 24 with the first second that permeates water corresponding in hole 18. Along with the closure of valve plate, the water pressure of end is intake in valve body 10 left side increases gradually, slider 17 slides right under hydraulic effect, when the valve plate blocks the water circulation completely, the water pressure of end of intaking further increases and the initial direction effect, slider 17 is further pushed sleeve 15 right-hand member portion this moment, the second is permeated water and is unloaded some waters of water supply end in order to reduce the water of reverse action when hole 24 and the 18 coincidence of first hole of permeating water, the vibrations that produce when lightening the water reverse action, the life of extension valve and pipeline.

The limiting device is characterized in that the sleeve 15 is provided with a limiting device used for limiting the sleeve 15 to be separated from the installation channel 14, the limiting device comprises a limiting convex ring 25 arranged on the outer wall of the left end of the sleeve 15, the limiting convex ring 25 and the sleeve 15 are integrally manufactured, and a limiting groove 26 matched with the limiting convex ring 25 is formed in the valve plate.

The valve plate with be provided with the sealing device who is used for strengthening the closure degree between valve plate and the valve body 10 between the valve body 10, sealing device includes first installing port 27, second installing port 28 have been seted up respectively on first valve plate 111, second valve plate 112 and the closed side edge of valve body 10, first installing port 27 forms mounting groove 29 with second installing port 28, mounting groove 29 is T word groove, the width of mounting groove 29 bottom is greater than the width of notch, mounting groove 29 is provided with elastic sealing strip 30, elastic sealing strip 30's bottom with the mounting groove 29 laminating, the inside confession of having seted up of valve body 10 elastic sealing strip 30 top can deviate from the closed groove 31 that stretches into, elastic sealing strip 30 is located both sides between mounting groove 29 and the closed groove 31 are provided with the arc recess 32 that the indent was established respectively.

While there have been shown and described what are at present considered to be the fundamental principles of the utility model and its essential features and advantages, it will be understood by those skilled in the art that the utility model is not limited by the embodiments described above, which are included to illustrate the principles of the utility model, but that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as defined by the appended claims and their equivalents.

Claims

1. The utility model provides a high leakproofness butterfly valve with shock-absorbing function, includes valve body, valve plate, valve rod, seted up water passing channel in the valve body, the valve plate rotatable set up in the water passing channel, seted up on the valve body with the rotation channel that water passing channel is linked together, the valve rod passes rotation channel with the valve plate is connected, be provided with on the valve rod and be used for the drive valve rod pivoted driving piece, its characterized in that: the valve plate is provided with more than one mounting channel along the direction vertical to the valve plate, the mounting channel is provided with a sleeve, the left end of the sleeve is arranged on the valve plate, the right end of the sleeve penetrates out of the valve plate and is arranged in the water passing channel and positioned on one side of the water outlet end, the sleeve is provided with a sliding channel along the right end surface, the inner wall of the sliding channel is a smooth mirror surface, a sliding block can be arranged in the sliding channel in a sliding way by being attached to the inner wall, the outer wall of the sliding block is a smooth mirror surface, the right end part of the sleeve is provided with a plurality of first water permeable holes close to the valve plate, the first water permeable holes can be sealed when the sliding block slides to the right end part of the sleeve, a resetting device for preventing the sliding block from being separated from the sleeve and resetting the sliding block is arranged between the right end part of the sleeve and the bottom part of the sliding block, and the sliding block is provided with a pressure reducing device for reducing the water pressure at the water inlet end when the valve plate is closed, the valve plate is characterized in that a limiting device used for limiting the sleeve to be separated from the installation channel is arranged on the sleeve, and a sealing device used for enhancing the sealing degree between the valve plate and the valve body is arranged between the valve plate and the valve body.

2. The butterfly valve with high sealing performance and shock absorption function according to claim 1, wherein: the limiting device comprises a limiting convex ring arranged on the outer wall of the left end of the sleeve, and a limiting groove matched with the limiting convex ring is formed in the valve plate.

3. The butterfly valve with high sealing performance and shock absorption function according to claim 1, wherein: the reset device comprises a reset spring, one end of the reset spring is arranged on the inner wall of the right end part of the sleeve, and the other end of the reset spring is arranged on the sliding block.

4. The butterfly valve with high sealing performance and shock absorption function according to claim 1, wherein: the pressure reducing device comprises a cavity which is arranged on the sliding block rightwards along the left end face, and a second water permeable hole corresponding to the first water permeable hole is formed in the right end portion of the cavity.

5. The butterfly valve with high sealing performance and shock absorption function according to claim 1, wherein: the valve plate comprises first valve plate, second valve plate.

6. The butterfly valve with high sealing performance and shock absorption function according to claim 5, wherein: sealing device includes first installing port, second installing port have been seted up respectively on first valve plate, second valve plate and the closed side edge of valve body, first installing port forms the mounting groove with the second installing port, the mounting groove is T word groove, the width of mounting groove bottom is greater than the width of notch, the mounting groove is provided with the elastic sealing strip.

7. The butterfly valve with high sealing performance and shock absorption function according to claim 6, wherein: the bottom of the elastic sealing strip is attached to the mounting groove, and a closed groove is formed in the valve body, wherein the top of the elastic sealing strip can stretch into the closed groove in a separated mode.

8. The butterfly valve with high sealing performance and shock absorbing function according to claim 7, wherein: the two sides of the elastic sealing strip between the mounting groove and the closed groove are respectively provided with an arc-shaped groove which is concavely arranged.

9. The butterfly valve with high sealing performance and shock absorption function according to claim 1, wherein: the driving piece is a driving hand wheel.