CN111365496A

CN111365496A - Gate valve with non-return function

Info

Publication number: CN111365496A
Application number: CN202010242354.2A
Authority: CN
Inventors: 卓友钦; 洪宝山; 卓志坚
Original assignee: Tianhong Valve Technology Quanzhou Co ltd
Current assignee: Tianhong Valve Technology Quanzhou Co ltd
Priority date: 2020-03-31
Filing date: 2020-03-31
Publication date: 2020-07-03
Anticipated expiration: 2040-03-31
Also published as: CN111365496B

Abstract

The check valve has a good use effect, the sealing performance of the check assembly and the check valve seat can be well guaranteed when the check assembly is installed for the first time, the check assembly can be installed in different gate valves, and the application range is wide; after long-term use, the leakproofness of non return subassembly and non return disk seat receives the damage, need not to change non return subassembly or even whole gate valve, changes the less gate valve of taking the non return function of cost, including the valve body, set up in the exhalant canal of one side in the valve body, set up in on the valve body be located the ring flange of exhalant canal play water end, set up in be located on the valve body non return disk seat in the exhalant canal, be located in the exhalant canal with non return disk seat complex non return subassembly, be provided with connecting device on the ring flange, it is adjustable to be provided with on the connecting device non return subassembly with the adjusting device of non return disk seat position relation, the non return subassembly set up in on the adjusting device.

Description

Gate valve with non-return function

Technical Field

The invention relates to the technical field of gate valves, in particular to a gate valve with a non-return function.

Background

The gate valve is an opening and closing member, the movement direction of the gate plate is perpendicular to the fluid direction, and the gate valve can be fully opened and closed. The device can be widely used as a regulating and cut-off device on pipelines of tap water, sewage, buildings, petroleum, chemical engineering, food, medicine, light textile, electric power, ships, metallurgy, energy systems and the like.

Although the gate valve also has a non-return function, the non-return use effect is poor, when the non-return assembly is installed for the first time, the sealing performance of the non-return assembly and the non-return valve seat cannot be well guaranteed, the non-return assembly can only be installed in a specific gate valve, and the application range is narrow; after long-term use, the leakproofness of non return subassembly and non return disk seat receives the damage, need change non return subassembly or whole gate valve even, and the replacement cost is great.

Disclosure of Invention

The invention aims to overcome the defects and shortcomings of the prior art, and provides a check valve which is excellent in use effect, the sealing performance of the check assembly and a check valve seat can be well guaranteed when the check assembly is installed for the first time, the check assembly can be installed in different gate valves, and the application range is wide; after long-term use, the leakproofness of non return subassembly and non return disk seat receives the damage, need not to change non return subassembly or even whole gate valve, changes into a less gate valve of taking the non return function of cost.

In order to achieve the purpose, the invention adopts the following technical scheme:

a gate valve with a non-return function comprises a valve body, a water outlet channel arranged on one side in the valve body, a flange plate arranged on the valve body and positioned at the water outlet end of the water outlet channel, a non-return valve seat arranged on the valve body and positioned in the water outlet channel, and a non-return assembly positioned in the water outlet channel and matched with the non-return valve seat, wherein a connecting device is arranged on the flange plate, an adjusting device capable of adjusting the position relation between the non-return assembly and the non-return valve seat is arranged on the connecting device, and the non-return assembly is arranged on the adjusting device;

the non-return assembly comprises a sliding shaft arranged on the adjusting device, a sliding block arranged outside the sliding shaft in a sliding mode, a reset elastic piece arranged between the sliding block and the adjusting device, a valve clack arranged in the water outlet channel and matched with the non-return valve seat, and a plurality of connecting ribs connected with the valve clack and the sliding block.

The further improvement is that: the connecting device comprises a connecting ring plate detachably arranged on the flange plate and a plurality of supporting plates uniformly arranged on the inner end face of the connecting ring plate;

adjusting device is including adjusting the cylinder, keeping away from the drive division of non return disk seat, being formed at the several the terminal regulation circular slot of backup pad, the drive division set up in on the adjusting cylinder, it is provided with the internal thread to adjust the circular slot inner wall, adjust the cylinder outside be provided with interior screw-thread fit's external screw thread.

The further improvement is that: be provided with along the axial on the sliding shaft and play guide effect and convenience the non return subassembly with the sand grip that non return disk seat position relation was adjusted, seted up on the sliding block with sand grip complex direction is adjusted the recess, the sand grip ring the sliding shaft evenly is provided with several.

The further improvement is that: and an anti-collision device for preventing the valve clack from colliding with the sliding shaft is arranged between the sliding shaft and the valve clack.

The further improvement is that: the anti-collision device comprises an anti-collision protection pad fixedly arranged on the sliding shaft and an anti-collision groove arranged on the valve clack and matched with the anti-collision protection pad.

The further improvement is that: the shape of drive division is for conveniently driving the regular hexagonal prism of regulation cylinder pivoted.

The further improvement is that: be provided with the improvement on the valve clack leakproofness with prevent the sealed loss prevention circle of valve clack wearing and tearing.

After the technical scheme is adopted, the invention has the beneficial effects that: the sliding shaft, the sliding block, the elastic component resets, the valve clack, the cooperation of splice bar makes the result of use of non return comparatively good, install the non return subassembly at the gate valve through connecting device, when first installation non return subassembly, adjust non return subassembly and non return disk seat position relation through adjusting device, guarantee the leakproofness of non return subassembly and non return disk seat, because adjusting device's setting makes the non return subassembly can install in the gate valve of difference, the range of application broad, long-term the back of using, the leakproofness of non return subassembly and non return disk seat receives the damage, need not change non return subassembly or even whole gate valve, only need adjust the position relation of non return subassembly and non return disk seat through adjusting device, guarantee the leakproofness between once more, change cost is little.

Further effects are as follows: the connecting ring plate is detachably arranged on the flange plate, so that the problem that the non-return assembly cannot be detached from the gate valve after being fixed is solved; the plurality of supporting plates are arranged on the inner end face of the connecting ring plate, so that the unstable condition of the check assembly after installation is solved.

Further effects are as follows: the cooperation of adjusting cylinder, external screw thread, regulation circular slot, internal thread has solved the unable problem of adjusting with non return disk seat position relation, unable regulation and non return disk seat leakproofness after the non return subassembly installation.

Further effects are as follows: the cooperation of sand grip, direction regulation recess has solved the sliding block and has slided to join in marriage the problem that the effect is not good, non return subassembly and the not good regulation of non return disk seat position relation in sliding shaft slip.

Further effects are as follows: the problem that the valve clack easily collides with the sliding shaft is solved by the aid of the anti-collision device.

Further effects are as follows: the problem that the impact force of the valve clack on the sliding shaft is high is solved by the aid of the matching of the anti-collision protection pad and the anti-collision groove.

Further effects are as follows: the shape of drive division is regular hexagonal prism, has solved the not good problem of drive adjustment cylinder pivoted.

Further effects are as follows: the sealing loss prevention ring is arranged, so that the problems that the valve clack and the check valve seat are poor in sealing performance and easy to wear are solved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

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

FIG. 2 is a schematic view of the non-return structure of FIG. 1;

FIG. 3 is a schematic structural view of the connecting ring plate, the supporting plate and the adjusting circular groove in the invention;

FIG. 4 is a schematic structural diagram of an adjusting cylinder and a driving part in the present invention;

FIG. 5 is a schematic view of the structure of the sliding shaft and the protruding strip of the present invention;

FIG. 6 is a schematic structural view of the sliding block and the guiding adjustment groove of the present invention;

FIG. 7 is a schematic view of the return spring of the present invention;

fig. 8 is a schematic structural diagram of a valve flap and an anti-collision groove in the invention.

Detailed Description

The technical solutions of the present invention will be described in detail and fully with reference to the accompanying drawings, and it should be understood that the described embodiments are only some embodiments, but not all embodiments, of the present invention. 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. The features of the embodiments in the present application may be combined with each other without conflict.

Referring to fig. 1 to 8, the technical solution adopted by the present embodiment is:

a gate valve with a non-return function comprises a valve body 1, wherein a flange plate 2 is arranged on the right end face of the valve body 1, the flange plate 2 and the valve body 1 are integrally formed, a water outlet channel 3 is formed in the right side of the valve body 1, a non-return valve seat 4 is arranged in the water outlet channel 3 on the valve body 1, the non-return valve seat 4 and the valve body 1 are integrally formed, the right end face of the flange plate 2 is connected with a connecting ring plate 6 through four screws 5, so that a non-return assembly can be detached from the gate valve after being fixed, four support plates 7 are uniformly and fixedly arranged on the inner end faces of the connecting ring plate 6, the stability of the non-return assembly after being installed is improved, adjusting circular grooves 8 are formed at the tail ends of the four support plates 7, internal threads (not shown in the figure) are arranged on the inner walls of the adjusting circular grooves 8, the adjusting cylinder 9, an external thread (not shown in the figure), the adjusting circular groove 8 and an internal thread (not shown in the figure) are matched, so that the position relation between the adjusting cylinder 9 and the check valve seat 4 can be adjusted after the check assembly is installed, and further the sealing performance between the adjusting cylinder 9 and the check valve seat 4 is adjusted, a driving part 10 is fixedly arranged on the right end face of the adjusting cylinder 9, the driving part 10 is in a regular hexagonal prism shape, so that the adjusting cylinder 9 can be conveniently driven to rotate, a sliding shaft 11 is fixedly arranged on the left end face of the adjusting cylinder 9, a sliding block 12 is arranged outside the sliding shaft 11 in a sliding mode, convex strips 13 are arranged on the outer surface of the sliding shaft 12 along the axial direction, six convex strips 13 are uniformly arranged on the sliding shaft 11, a guide adjusting groove 14 matched with the convex strips 13 is formed in the inner end face of the sliding block 12, the matching of the convex strips 13 and the guide adjusting groove 14, the reset elastic piece 15 is sleeved outside the sliding shaft 11 and is positioned between the sliding block 12 and the adjusting cylinder 9, the left end of the reset elastic piece 15 is fixedly arranged on the right end face of the sliding block 12, the right end of the reset elastic piece 15 is fixedly arranged on the left end face of the adjusting cylinder 9, the reset elastic piece 15 is a spring or other elastic part, the left side of the sliding block 12 is provided with a valve clack 16 matched with the check valve seat 4, the sliding block 12 is fixedly connected with the valve clack 16 through four connecting ribs 17, the sliding shaft 11, the sliding block 12, the reset elastic piece 15, the valve clack 16 and the connecting ribs 17 are matched to ensure that the using effect of check is better, the outside of the left end of the valve clack 16 is provided with a sealing anti-damage ring 18, the sealing performance of the valve clack 16 and the check valve seat 4 is improved, and the abrasion degree between, the cooperation of the anti-collision protection pad 19 and the anti-collision groove 20 effectively reduces the impact force of the valve clack 16 impacting the sliding shaft 11.

The working principle of the invention is as follows: the connecting ring plate 6 is fixed on the flange plate 2 through the screw 5, when the check assembly is installed for the first time, the driving part 10 is rotated clockwise or anticlockwise, the driving part 10 drives the adjusting cylinder 9 to rotate in the adjusting circular groove 8, so that the position relation between the check assembly and the check valve seat 4 is adjusted, the sealing performance between the check assembly and the check valve seat 4 is ensured, when the adjusting cylinder 9 rotates, the position relation between the check assembly and the check valve seat 4 is better adjusted through the matching of the convex strips 13 and the guide adjusting grooves 14 when the adjusting cylinder 9 rotates, the check assembly can be installed in different gate valves due to the arrangement of the adjusting device, the application range is wide, when the adjusting device is used, fluid flows to one side of the water outlet channel 3 from the left side, the fluid rushes towards the valve clack 16, the valve clack 16 transmits the acting force to the sliding block 12 through four connecting ribs 17, the sliding block 12 slides, the reset elastic part 15 contracts, fluid flows to the water outlet channel 3 from the check valve seat 4, when the fluid is stopped, the reset elastic part 15 resets to apply a leftward acting force to the sliding block 12, the sliding block 12 slides leftward on the sliding shaft 11 to drive the valve clack 16 to seal the check valve seat 4, the sliding shaft 11, the sliding block 12, the reset elastic part 15, the valve clack 16 and the connecting rib 17 are matched to ensure that the using effect of the check is better, the convex strip 13 is matched with the guide adjusting groove 14 to ensure that the sliding effect of the sliding block 12 in sliding fit with the sliding shaft 11 is better, when the fluid impacts the valve clack 16, the impact force of the valve clack 16 impacting the sliding shaft 11 is effectively reduced through the matching of the anti-collision protection pad 19 and the anti-collision groove 20, the sealing anti-damage ring 18 arranged outside the left end of the valve clack 16 can improve the sealing performance with the check valve seat 4 during sealing, the leakproofness of valve clack 16 and non return valve seat 4 receives the damage, only needs through rotating drive portion 10, drives and adjusts cylinder 9 and adjust 8 internal rotations in the circle groove to adjust non return subassembly and non return valve seat 4 position relation, guarantee the leakproofness of non return subassembly and non return valve seat 4 once more, replacement cost is little.

In the description of the present invention, it should be noted that the orientations or positional relationships indicated as the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., appear based on the orientations or positional relationships shown in the drawings only for the convenience of describing the present invention and simplifying the description, but not for indicating or implying that the referred devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the invention. The terms "disposed," "mounted," "connected," and the like are to be construed broadly and may include, for example, a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case to those skilled in the art.

The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the invention and various alternatives and modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims and their equivalents.

Claims

1. The utility model provides a take gate valve of non return function, include the valve body, set up in the delivery channel of one side in the valve body, set up in be located on the valve body the flange dish of delivery channel play water end, set up in be located on the valve body non return disk seat in the delivery channel, be located in the delivery channel with non return disk seat complex non return subassembly, its characterized in that: the flange plate is provided with a connecting device, the connecting device is provided with an adjusting device capable of adjusting the position relation between the check assembly and the check valve seat, and the check assembly is arranged on the adjusting device;

2. The gate valve with check function according to claim 1, wherein: the connecting device comprises a connecting ring plate detachably arranged on the flange plate and a plurality of supporting plates uniformly arranged on the inner end face of the connecting ring plate;

3. The gate valve with check function according to claim 1, wherein: be provided with along the axial on the sliding shaft and play guide effect and convenience the non return subassembly with the sand grip that non return disk seat position relation was adjusted, seted up on the sliding block with sand grip complex direction is adjusted the recess, the sand grip ring the sliding shaft evenly is provided with several.

4. The gate valve with check function according to claim 1, wherein: and an anti-collision device for preventing the valve clack from colliding with the sliding shaft is arranged between the sliding shaft and the valve clack.

5. The gate valve with check function according to claim 4, wherein: the anti-collision device comprises an anti-collision protection pad fixedly arranged on the sliding shaft and an anti-collision groove arranged on the valve clack and matched with the anti-collision protection pad.

6. The gate valve with check function according to claim 2, wherein: the shape of drive division is for conveniently driving the regular hexagonal prism of regulation cylinder pivoted.

7. The gate valve with check function according to any one of claims 1 to 6, wherein: be provided with the improvement on the valve clack leakproofness with prevent the sealed loss prevention circle of valve clack wearing and tearing.