CN212986147U

CN212986147U - Micro-resistance slow-closing silencing check valve

Info

Publication number: CN212986147U
Application number: CN202021733635.XU
Authority: CN
Inventors: 陈利义
Original assignee: Bohai Valve Group Co ltd
Current assignee: Bohai Valve Group Co ltd
Priority date: 2020-08-19
Filing date: 2020-08-19
Publication date: 2021-04-16
Anticipated expiration: 2030-08-19

Abstract

The utility model discloses a micro-resistance slow-closing silencing check valve, which belongs to the technical field of check valves and comprises a valve body, wherein flanges B are welded at openings at two sides of the outer side wall of the valve body, a magnetic ring B is fixedly arranged at the inner ring of the surface of the flange B, a rubber sealing ring is bonded at the outer ring of the surface of the flange B, screw holes are arranged on the surface of the flange B and are detachably connected with the flange A through screw holes, bolts and nuts, the flange A is welded at the end part of a water pipe, a magnetic ring A is fixedly arranged at the inner ring of the surface of the flange A, a rubber sealing ring is bonded at the outer ring of the surface of the flange A, a valve clack is rotationally connected at the inner side wall of the valve body, the slow-closing device of the micro-resistance slow-closing silencing check valve is convenient to detach and maintain, a, the connection is stable and the sealing effect is good.

Description

Micro-resistance slow-closing silencing check valve

Technical Field

The utility model relates to a check valve technical field especially relates to a little hinders slowly-closing noise elimination check valve.

Background

The slowly-closed silencing check valve is used at the outlet of industrial and urban water supply and drainage pipeline, high-rise residence, high-grade hotel and pressurized water pump, and is mainly composed of valve body, valve clack, buffer unit and micro-regulating valve.

201911045090.5 discloses a slow-closing silencing check valve with a first magnetic button, a second magnetic button, a guide post and a spring, wherein the spring pushes the valve flap back to the original position when water flow stops, and the valve flap drives the first magnetic button to approach the second magnetic button on one side of the fixed block during moving, the first magnetic button and the second magnetic button are opposite at the same level, and generate a certain repulsion force when the first magnetic button and the second magnetic button approach each other, when the spring is damaged or the elasticity coefficient is reduced, the repulsion force generated between the first magnetic button and the second magnetic button can push the valve flap back to the original position, compared with the existing silencing check valve, the double guarantee of the spring and the magnetic button can avoid influencing the use of the silencing check valve, the inner tube, the joint, the fixed button and the clamping post are arranged, when the length of the valve body needs to be adjusted, the clamping post on the valve body can be pulled out, so that one end of the clamping post is separated from the inner tube, the limit relation of the inner pipe is released, then people can pull the inner pipe out of the valve body according to the requirement, thereby adjusting the length of the valve body, after the adjustment is finished, the clamping column is pushed back inwards, one end of the clamping column is embedded into the corresponding inner groove, the inner pipe is fixed, compared with the existing silencing check valve, the silencing check valve is convenient to install, and by arranging the valve rod, the clamping column, the clamping groove and the installation seat, when in use, the valve rod needs to be pulled upwards to drive the bottom end of the limiting rod to be separated from the limiting hole, the limiting of the valve clack is released, when the valve rod is pulled upwards, the clamping block on the outer surface of the valve rod is separated from the clamping groove of the mounting seat, then people can rotate the valve rod to make the clamping block and the clamping groove dislocate, so that the phenomenon that in the use process, the valve rod moves downwards to clamp the valve clack, and compared with the existing silencing check valve, the use safety of the silencing check valve is improved.

The existing micro-resistance slow-closing silencing check valve has the following defects: 1. the existing micro-resistance slow-closing silencing check valve only uses a flange connection mode to connect the valve body with a water pipe, the connection is unstable, and water is easy to leak at the connection part; 2. the spring of the slow closing device of the existing micro-resistance slow closing silencing check valve is soaked in water for a long time and is often bounced, so that the slow closing device is easy to lose efficacy and damage, and the whole valve body needs to be disassembled for replacing the spring, which is very troublesome; therefore, a micro-resistance slow-closing silencing check valve is provided.

SUMMERY OF THE UTILITY MODEL

The utility model provides a micro-resistance slow-closing silencing check valve, the slow-closing device of the micro-resistance slow-closing silencing check valve is convenient to disassemble and maintain, the service life is long, the spring of the slow-closing device needs to be frequently bounced, the elastic coefficient is easy to decline, and the spring is easy to damage, when the spring is damaged, the bolt at the top of the sealing cover is unscrewed, the sealing cover, the connecting rod, the guide pillar and the spring are taken out of the circular groove, the failed spring is taken down, a new spring is sleeved on the outer side wall of the guide pillar, the sealing cover, the connecting rod, the guide pillar and the spring are put into the inner side wall of the valve body from the circular groove, one end of the guide pillar is inserted into the inner side wall of the guide sleeve, because the outer side wall of the connecting rod is bonded with a rubber sleeve and is connected with the inner side wall of the circular groove through the rubber sleeve, the utility model discloses the micro-resistance slowly closes noise elimination check valve uses flange joint and magnetic ring to connect matched with connected mode, adopt rubber sealing ring leak protection layer upon layer, it is sealed effectual, all be connected the magnetic ring B on the flange B surface at valve body head and the tail both ends with the magnetic ring A of the flange A of water pipe tip, the raised grain and the magnetic pole opposite have all been seted up on magnetic ring A and magnetic ring B surface, opposite sex absorbs and the unique unsmooth raised grain of raised grain mutually, it is inseparable to make magnetic ring A and magnetic ring B connect, relative slip displacement does not, to connect inseparable flange A and flange B and pass through the bolt and nut and connect, rubber sealing ring makes for the rubber material, leak protection water is effectual.

The utility model provides a specific technical scheme as follows:

the utility model provides a micro-resistance slow-closing silencing check valve, which comprises a valve body, wherein flanges B are welded at openings at two sides of the outer side wall of the valve body, the inner ring of the surface of the flange B is fixedly provided with a magnetic ring B, the outer ring of the surface of the flange B is bonded with a rubber sealing ring, the surface of the flange B is provided with screw holes and is detachably connected with the flange A through the screw holes, bolts and nuts, the flange A is welded at the end part of the water pipe, the inner ring on the surface of the flange A is fixedly provided with a magnetic ring A, the outer ring of the surface of the flange A is bonded with a rubber sealing ring, the inner side wall of the valve body is rotationally connected with a valve clack, the top of the valve clack is welded with a valve rod, the top of the valve rod is welded with a hand wheel, the upper part of the outer side wall of the valve clack is fixedly connected with the bottom of the slow closing device, the upper portion of the outer side wall of the slow closing device is bonded with a rubber sleeve and is connected with the inner side wall of the circular groove through the rubber sleeve, and the top of the slow closing device is detachably connected with the top of the valve body.

Optionally, the surfaces of the magnetic ring a and the magnetic ring B are both provided with raised grains, and the magnetic poles are opposite.

Optionally, the outer side wall of the valve rod is provided with an external thread and is rotatably connected with the inner side wall of the valve seat through the external thread and the internal thread.

Optionally, the slow-closing device includes a sealing cover, a connecting rod, a guide pillar, a spring and a guide sleeve, one side of the inner side wall of the guide sleeve is slidably connected with one side of the outer side wall of the guide pillar, the spring is sleeved on the outer side wall of the guide pillar, and the top of the guide pillar is fixedly connected with the sealing cover through the connecting rod.

Optionally, the surface of the sealing cover is provided with a screw hole and is detachably connected with the top of the valve body through the screw hole, a bolt and a nut.

The utility model has the advantages as follows:

the embodiment of the utility model provides a little hinders slowly to close noise elimination check valve:

1. the slow closing device of the micro-resistance slow closing silencing check valve of the utility model is convenient to detach and maintain, has long service life, and the spring of the slow closing device is easy to be damaged because of frequent springing, easy reduction of the elastic coefficient, when the spring is damaged, the bolt at the top of the sealing cover is unscrewed, the sealing cover, the connecting rod, the guide pillar and the spring are taken out of the circular groove, the failed spring is taken down, a new spring is sleeved on the outer side wall of the guide pillar, the sealing cover, the connecting rod, the guide pillar and the spring are put into the inner side wall of the valve body from the circular groove, one end of the guide pillar is inserted into the inner side wall of the guide sleeve, because the outer side wall of the connecting rod is bonded with the rubber sleeve and is connected with the inner side wall of the circular groove through the rubber sleeve, the rubber is soft and elastic, the pressure can rebound rapidly at normal temperature, the sealing effect is good, the sealing cover and the valve body are connected well by the bolt, and the problems that the existing micro-resistance slow-closing silencing check valve is unstable in connection and the joint is prone to water leakage are solved.

2. The utility model discloses the micro-resistance slowly closes noise elimination check valve uses flange joint and magnetic ring to connect matched with connected mode, adopt rubber seal ring leak protection layer upon layer, it is sealed effectual, all be connected the magnetic ring B on the flange B surface at valve body head and the tail both ends with the magnetic ring A of the flange A of water pipe tip, magnetic ring A and magnetic ring B surface have all been seted up raised grain and the magnetic pole is opposite, opposite sex absorbs and the unique unsmooth raised grain of raised grain mutually, it is inseparable to make magnetic ring A and magnetic ring B connect, relative slip displacement not, will connect inseparable flange A and flange B and pass through the bolt and nut and connect, rubber seal ring makes for the rubber material, leak protection water is effectual, solve the inconvenient problem of changing the spring of current micro-resistance slowly closing noise elimination check valve.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments 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 it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic view of an overall structure of a micro-resistance slow-closing silencing check valve according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a flange B of the micro-resistance slow-closing silencing check valve according to the embodiment of the present invention.

In the figure: 1. a rubber seal ring; 2. a flange A; 3. a magnetic ring A; 4. a magnetic ring B; 5. a slow closing device; 501. a sealing cover; 502. a connecting rod; 503. a guide post; 504. a spring; 505. a guide sleeve; 6. a flange B; 7. a bolt; 8. a screw hole; 9. a nut; 10. a valve flap; 11. a valve body; 12. a valve seat; 13. a valve stem; 14. a hand wheel; 15. an external thread; 16. an internal thread; 17. a rubber sleeve.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, 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 efforts belong to the protection scope of the present invention.

A micro-resistance slow-closing silencing check valve according to an embodiment of the present invention will be described in detail with reference to fig. 1 to 2.

Referring to fig. 1 and 2, an embodiment of the present invention provides a micro-resistance slow-closing silencing check valve, which includes a valve body 11, wherein a flange B6 is welded at both side openings of an outer sidewall of the valve body 11, a magnetic ring B4 is fixedly installed at an inner ring of a flange B6, a rubber sealing ring 1 is bonded at an outer ring of a flange B6 surface, a screw hole 8 is opened at a surface of the flange B6 and detachably connected with a flange a2 through the screw hole 8, a bolt 7 and a nut 9, the flange a2 is welded at a water pipe end, a magnetic ring A3 is fixedly installed at an inner ring of the flange a2 surface, a rubber sealing ring 1 is bonded at an outer ring of a flange a2 surface, a valve flap 10 is rotatably connected to an inner sidewall of the valve body 11, a valve rod 13 is welded at a top of the valve flap 10, a handwheel 14 is welded at a top of the valve rod 13, an upper portion of an outer sidewall of the valve flap 10, the top of the slow closing device 5 is detachably connected with the top of the valve body 11.

Illustratively, the slow-closing device 5 of the micro-resistance slow-closing silencing check valve of the invention is convenient to disassemble and maintain, the service life is long, the spring 504 of the slow-closing device 5 needs to bounce frequently, the elastic coefficient is easy to drop, and the spring 504 is easy to damage, when the spring 504 is damaged, the bolt 7 at the top of the sealing cover 501 is unscrewed, the sealing cover 501, the connecting rod 502, the guide pillar 503 and the spring 504 are taken out from the circular groove integrally, the failed spring 504 is taken out, a new spring 504 is sleeved on the outer side wall of the guide pillar 503, the sealing cover 501, the connecting rod 502, the guide pillar 503 and the spring 504 are put into the inner side wall of the valve body 11 integrally from the circular groove, one end of the guide pillar 503 is inserted into the inner side wall of the guide sleeve 505, because the outer side wall of the connecting rod 502 is bonded with the rubber sleeve 17 and is connected with the inner side wall of the circular groove through the rubber sleeve 17, the rubber, the utility model discloses the microresistance slowly closes noise elimination check valve uses flange joint and magnetic ring to connect matched with connected mode, adopt layer upon layer rubber seal ring 1 leak protection, it is sealed effectual, all be connected the magnetic ring B4 on the flange B6 surface at 11 head and the tail both ends of valve body with the magnetic ring A3 of the flange A2 of water pipe tip, magnetic ring A3 and magnetic ring B4 surface have all been seted up raised grain and the magnetic pole is opposite, opposite sex is inhaled and the unique unsmooth raised grain of raised grain mutually, it is inseparable to make magnetic ring A3 and magnetic ring B4 connect, relative sliding displacement does not, will connect inseparable flange A3 and flange B4 and connect through bolt 7 and nut 9, rubber seal ring 1 makes for the rubber material, the leak protection water is effectual.

Referring to fig. 1 and 2, the surfaces of the magnetic ring a3 and the magnetic ring B4 are both provided with raised grains, and the magnetic poles are opposite.

In an example, the surfaces of the magnetic ring A3 and the magnetic ring B4 are both provided with wavy grains, the magnetic poles of the wavy grains are opposite, opposite poles of the wavy grains attract each other, and the wavy grains are unique, concave and convex wavy grains, so that the magnetic ring A3 and the magnetic ring B4 are connected tightly.

Referring to fig. 1, the outer side wall of the valve rod 13 is provided with an external thread 15 and is rotatably connected with the inner side wall of the valve seat 12 through the external thread 15 and an internal thread 16.

Illustratively, rotation of the valve stem 13 within the valve seat 12 is facilitated.

Referring to fig. 1, the slow closing device 5 includes a sealing cover 501, a connecting rod 502, a guide post 503, a spring 504 and a guide sleeve 505, wherein one side of the inner side wall of the guide sleeve 505 is slidably connected with one side of the outer side wall of the guide post 503, the spring 504 is sleeved on the outer side wall of the guide post 503, and the top of the guide post 503 is fixedly connected with the sealing cover 501 through the connecting rod 502.

In the example, the guide pillar 503 and the connecting rod 502 are welded at a certain angle, which does not affect the sliding operation of the guide pillar in the guide sleeve, and is convenient to install and disassemble.

Referring to fig. 1, the sealing cover 501 is provided with a screw hole 8 on the surface and is detachably connected with the top of the valve body 11 through the screw hole 8, the bolt 7 and the nut 9.

By way of example, the bolted connection is secure and easy to install and remove.

When the sealing ring is used, the magnetic ring B4 on the surfaces of the flanges B6 at the head and tail ends of the valve body 11 are connected with the magnetic ring A3 of the flange A2 at the end part of a water pipe, the surfaces of the magnetic ring A3 and the magnetic ring B4 are both provided with raised grains with opposite magnetic poles, the magnetic ring A3 and the magnetic ring B4 are tightly connected without relative sliding displacement, the tightly connected flange A3 and the flange B4 are connected through the bolt 7 and the nut 9, the rubber sealing ring 1 is made of rubber, the water leakage prevention effect is good, when the spring 504 is damaged, the bolt 7 at the top of the sealing cover 501 is unscrewed, the sealing cover 501, the connecting rod 502, the guide pillar 503 and the spring 504 are integrally taken out of the circular groove, the failed spring 504 is taken down, a new spring 504 is sleeved on the outer side wall of the guide pillar 503, the sealing cover 501, the connecting rod 502, the guide pillar 503 and the spring 504 are integrally put into the inner side wall of the valve body 11 from the circular groove, because the outer side wall of the connecting rod 502 is bonded with the rubber sleeve 17 and is connected with the inner side wall of the circular groove through the rubber sleeve 17, the rubber is soft and elastic, the sealing effect is good, finally, the sealing cover 501 and the valve body 11 are connected through the bolt 7, in the working process, the hand wheel 14 is rotated, the valve rod 11 is rotated, the valve clack 10 is inclined, the guide pillar 503 slides towards the inner side wall of the guide sleeve 505 in the inner side wall of the guide sleeve 505, the spring 504 is compressed, when water flow stops, the spring 504 rebounds and resets to drive the guide pillar 503 to slide towards the opposite direction of the guide sleeve 505 in the inner side wall of the guide sleeve 505.

The utility model relates to a micro-resistance slow-closing silencing check valve, which comprises a rubber sealing ring 1; 2. a flange A; 3. a magnetic ring A; 4. a magnetic ring B; 5. a slow closing device; 501. a sealing cover; 502. a connecting rod; 503. a guide post; 504. a spring; 505. a guide sleeve; 6. a flange B; 7. a bolt; 8. a screw hole; 9. a nut; 10. a valve flap; 11. a valve body; 12. a valve seat; 13. a valve stem; 14. a hand wheel; 15. an external thread; 16. an internal thread; 17. the rubber sleeve and the parts are all universal standard parts or parts known to those skilled in the art, and the structure and the principle of the rubber sleeve are known to those skilled in the technical manual or by routine experiments.

It is apparent that those skilled in the art can make various changes and modifications to the embodiments of the present invention without departing from the spirit and scope of the embodiments of the present invention. Thus, if such modifications and variations of the embodiments of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. The micro-resistance slow-closing silencing check valve comprises a valve body (11) and is characterized in that flanges B (6) are welded at openings on two sides of the outer side wall of the valve body (11), magnetic rings B (4) are fixedly mounted at the inner ring of the surface of each flange B (6), rubber sealing rings (1) are bonded on the outer ring of the surface of each flange B (6), screw holes (8) are formed in the surface of each flange B (6), the flange B (6) is detachably connected with a flange A (2) through screw holes (8), bolts (7) and nuts (9), the flange A (2) is welded at the end part of a water pipe, magnetic rings A (3) are fixedly mounted at the inner ring of the surface of the flange A (2), the rubber sealing rings (1) are bonded on the outer ring of the surface of the flange A (2), a valve clack (10) is rotatably connected on the inner side wall of the valve body (11), a, valve clack (10) lateral wall upper portion and slowly close device (5) bottom fixed connection, slowly close device (5) lateral wall upper portion bonding have rubber sleeve (17) and be connected with the circular slot inside wall through rubber sleeve (17), slowly close device (5) top and can dismantle with valve body (11) top and be connected.

2. The micro-resistance slow-closing silencing check valve as claimed in claim 1, wherein the surfaces of the magnetic ring A (3) and the magnetic ring B (4) are both provided with raised grains and have opposite magnetic poles.

3. The micro-resistance slow-closing silencing check valve as claimed in claim 1, wherein the outer side wall of the valve rod (13) is provided with an external thread (15) and is rotatably connected with the inner side wall of the valve seat (12) through the external thread (15) and the internal thread (16).

4. The micro-resistance slow-closing silencing check valve according to claim 1, wherein the slow-closing device (5) comprises a sealing cover (501), a connecting rod (502), a guide pillar (503), a spring (504) and a guide sleeve (505), one side of the inner side wall of the guide sleeve (505) is slidably connected with one side of the outer side wall of the guide pillar (503), the spring (504) is sleeved on the outer side wall of the guide pillar (503), and the top of the guide pillar (503) is fixedly connected with the sealing cover (501) through the connecting rod (502).

5. The micro-resistance slow-closing silencing check valve as claimed in claim 4, wherein the surface of the sealing cover (501) is provided with a screw hole (8) and is detachably connected with the top of the valve body (11) through the screw hole (8), a bolt (7) and a nut (9).