CN213685360U

CN213685360U - Prevent square flange ball valve of leakage

Info

Publication number: CN213685360U
Application number: CN202022557796.4U
Authority: CN
Inventors: 查昭; 陈礼宏; 陶海世; 王磊
Original assignee: Zhejiang Wandekai Fluid Equipment Technology Co ltd
Current assignee: Zhejiang Wandekai Fluid Equipment Technology Co ltd
Priority date: 2020-11-06
Filing date: 2020-11-06
Publication date: 2021-07-13
Anticipated expiration: 2030-11-06

Abstract

A leak-proof square flange ball valve comprises a valve body, an opening and closing cavity arranged in the valve body and a spherical opening and closing piece arranged in the opening and closing cavity, wherein a water inlet joint and a water outlet joint are respectively arranged at the left end and the right end of the valve body; the water outlet joint is communicated with the opening and closing cavity through a water outlet hole, and the diameter of the water outlet hole is smaller than the inner diameter of the water outlet joint; the inner walls of the right end of the water inlet hole and the left end of the water outlet hole are provided with annular sealing grooves; the seal groove is provided with a seal ring matched with the seal groove. The utility model discloses a prevent square flange ball valve of leakage can guarantee the leakproofness of ball-type opening and closing member position all the time when square flange ball valve is closed, effectively avoids appearing the condition of leaking, plays and prevents the leakage effect.

Description

Prevent square flange ball valve of leakage

Technical Field

The utility model relates to a ball valve, especially a prevent square flange ball valve of leakage.

Background

The ball valve is a valve for controlling water flow through a spherical opening and closing part, the square flange ball valve is one of the ball valves, a hand wheel can be rotated when the square flange ball valve is used, the hand wheel drives the spherical opening and closing part to rotate and open through a valve rod, water flow can enter a water outlet connector from a water inlet connector through the spherical opening and closing part and finally flows out of the water outlet connector for use, when the spherical opening and closing part rotates and opens or rotates and closes, the outer wall of the spherical opening and closing part can rub with the wall of an opening and closing cavity in the valve body, the service time of the square flange ball valve is prolonged, the outer wall of the spherical opening and closing part cannot be abraded, a gap is formed between the outer wall of the spherical opening and closing part and the wall of the opening and closing cavity, and at the moment, the water flow can leak into the water outlet connector through the gap when the square flange ball valve is closed, and.

Disclosure of Invention

The to-be-solved technical problem of the utility model is to provide a prevent square flange ball valve of leakage, it can guarantee the leakproofness that the ball-type opened and close a position all the time when square flange ball valve is closed, effectively avoids appearing the condition of leaking, plays and prevents the leakage effect.

The utility model provides a technical scheme that above-mentioned technical problem adopted does:

the utility model discloses a prevent square flange ball valve of leakage, including the valve body, locate the internal chamber of opening and close of valve and locate the ball-type of opening and close the intracavity, both ends are equipped with water supply connector, water connectors respectively about the valve body, are equipped with the valve opening on the valve body, are equipped with the valve rod in the valve opening, and the valve rod lower extreme is connected with the ball-type opening and close piece, and the valve opening is upwards worn out to the valve rod upper end and is equipped with the hand wheel, its characterized in that: the water inlet joint is communicated with the opening and closing cavity through a water inlet hole, and the diameter of the water inlet hole is smaller than the inner diameter of the water inlet joint; the water outlet joint is communicated with the opening and closing cavity through a water outlet hole, and the diameter of the water outlet hole is smaller than the inner diameter of the water outlet joint; the inner walls of the right end of the water inlet hole and the left end of the water outlet hole are provided with annular sealing grooves; the sealing groove is provided with a sealing ring matched with the sealing groove, and an orifice of an inner hole of the sealing ring is attached to the outer wall of the spherical opening and closing piece; an extrusion sleeve matched with the water outlet hole is arranged in the water outlet hole; the left end face of the extrusion sleeve is provided with an annular embedded ring; the rubber gasket matched with the embedded ring is sleeved outside the embedded ring, and the rubber gasket is annular; a water through plate is arranged at the right end port of the extrusion sleeve, and the water through plate and the extrusion sleeve are integrally formed; a plurality of water through holes which are uniformly distributed are formed in the water through plate; a plurality of push plates corresponding to the positions of the water through holes are arranged on the right side of the water through plate; the push plate is coaxial with the water through hole, and the diameter of the push plate is larger than that of the water through hole; the push plate is connected with the water passing plate through a plurality of connecting rods which are uniformly distributed on the circumference; a guide hole is formed in the center of the water passing plate; and a guide device matched with the guide hole is screwed at the right end port of the water outlet joint.

The guide device comprises a dismounting plate in threaded connection with the port at the right end of the water outlet joint; a plurality of through holes which are uniformly distributed are arranged on the dismounting plate; a guide post coaxial with the guide hole is arranged at the center of the side wall of the left side of the dismounting plate; the left end of the guide column penetrates through the guide hole leftwards and is screwed with a limiting head; and a spring sleeved outside the guide post is arranged between the water passing plate and the dismounting plate.

The right end face of the water passing plate is provided with a plurality of limiting holes which are uniformly distributed in the circumferential direction; the side wall of the left side of the water passing plate is provided with a plurality of limiting rods corresponding to the limiting holes; the left end of the limiting rod penetrates into the corresponding limiting hole leftwards, and a moving distance is reserved between the left end face of the limiting rod and the bottom of the limiting hole.

The inner walls of the upper side and the lower side of the right part of the water outlet joint are provided with mutually symmetrical limiting blocks; the side wall of the right side of the limiting block is attached to the side wall of the left side of the water passing plate.

The utility model has the advantages that:

compared with the prior art, adopt the utility model discloses the square flange ball valve of preventing leaking of structure can form twice through sealing washer and rubber pad and seal, when rivers pass through ball-type opening and closing member outer wall and open and close the gap between the cavity wall towards the water connectors seepage, the sealing washer that is located the seal groove on the apopore left end inner wall then can stop the rivers of seepage at first, even the sealed inefficacy that the sealing washer formed, the rubber pad also can carry out the separation through the sealed rivers to the seepage all the time that self formed, and the elasticity of spring can play supplementary sealed effect, lead to when sealed not good at rubber pad elasticity weakening, the elasticity of spring then can sticis the rubber pad on ball-type opening and closing member outer wall all the time, guarantee the leakproofness between rubber pad and the opening and closing member all the time, avoid appearing the problem of leaking in the at utmost, play and prevent leaking.

Drawings

FIG. 1 is a schematic structural view of a square flange ball valve for preventing leakage of the present invention;

FIG. 2 is a schematic view of the structure of the leakage-proof square flange ball valve

Detailed Description

The invention is described in further detail below with reference to the following figures and detailed description:

referring to fig. 1 and 2, the utility model provides a leak-proof square flange ball valve, which comprises a valve body 1, an opening and closing cavity 2 arranged in the valve body 1 and a spherical opening and closing member 3 arranged in the opening and closing cavity 2, wherein the left and right ends of the valve body 1 are respectively provided with a water inlet joint 4 and a water outlet joint 5, the valve body 1 is provided with a valve hole 6, a valve rod 7 is arranged in the valve hole 6, the lower end of the valve rod 7 is connected with the spherical opening and closing member 3, the upper end of the valve rod 7 upwards penetrates out of the valve hole 6 to be provided with a hand wheel 8, the water inlet joint 4 is communicated with the opening and closing cavity 2 through a water inlet 9, and the; the water outlet joint 5 is communicated with the opening and closing cavity 2 through a water outlet hole 10, and the diameter of the water outlet hole 10 is smaller than the inner diameter of the water outlet joint 5; the inner walls of the right end of the water inlet hole 9 and the left end of the water outlet hole 10 are provided with annular sealing grooves 11; the sealing groove 11 is provided with a sealing ring 12 matched with the sealing groove, and an inner hole orifice of the sealing ring 12 is attached to the outer wall of the spherical opening and closing piece 3; an extrusion sleeve 13 matched with the water outlet hole 10 is arranged in the water outlet hole; the left end face of the extrusion sleeve 13 is provided with an annular embedded ring 14; the rubber pad 15 matched with the embedded ring 14 is sleeved outside the embedded ring 14, and the rubber pad 15 is annular; a water passing plate 16 is arranged at the right end port of the extrusion sleeve 13, and the water passing plate 16 and the extrusion sleeve 13 are integrally formed; a plurality of water through holes 17 which are uniformly distributed are formed in the water through plate 16; a plurality of push plates 18 corresponding to the positions of the water through holes 17 are arranged on the right side of the water through plate 16; the push plate 18 is coaxial with the water through hole 17, and the diameter of the push plate 18 is larger than that of the water through hole 17; the push plate 18 is connected with the water passing plate 16 through a plurality of connecting rods 19 which are uniformly distributed on the circumference; the center of the water passing plate 16 is provided with a guide hole 20; and a guide device matched with the guide hole 20 is screwed at the right end port of the water outlet joint 5.

The guide device comprises a dismounting plate 21 which is in threaded connection with the port at the right end of the water outlet joint 5; the dismounting plate 21 is provided with a plurality of through holes 22 which are uniformly distributed; a guide post 23 which is coaxial with the guide hole 20 is arranged at the center of the side wall of the left side of the dismounting plate 21; the left end of the guide post 23 penetrates through the guide hole 20 leftwards and is screwed with a limiting head 24; a spring 25 sleeved outside the guide column 23 is arranged between the water passing plate 16 and the dismounting plate 21.

The right end face of the water passing plate 16 is provided with a plurality of limiting holes 26 which are uniformly distributed in the circumferential direction; a plurality of limiting rods 27 corresponding to the limiting holes 26 are arranged on the left side wall of the water passing plate 16; the left end of the limiting rod 27 penetrates into the corresponding limiting hole 26 leftwards, and a moving distance 28 is formed between the left end face of the limiting rod 27 and the bottom of the limiting hole 26.

The inner walls of the upper and lower sides of the right part of the water outlet joint 5 are provided with mutually symmetrical limiting blocks 29; the right side wall of the limiting block 29 is attached to the left side wall of the water passing plate 16.

The utility model discloses a use method as follows:

when the ball-shaped opening and closing member is closed, the square flange ball valve is in a closed state, the ball-shaped opening and closing member 3 blocks water flow in the water inlet joint 4, no water exists in the water outlet joint 5, at the moment, the spring 25 pushes the water passing plate 16 leftwards through the self elasticity, the water passing plate 16 and the extrusion sleeve 13 are integrally formed, so that the extrusion sleeve 13 is extruded leftwards by the elasticity of the spring 25, the rubber pad 15 is tightly pressed on the outer wall of the ball-shaped opening and closing member 3, the inner edge of the left end opening of the rubber pad 15 is tightly attached to the outer wall of the ball-shaped opening and closing member 3 to form a seal, the inner wall of the right end of the water inlet hole 9 and the inner wall of the left end of the water outlet hole 10 are both provided with annular seal grooves 11, the seal grooves 11 are provided with seal rings 12 matched with the seal rings, the seal rings 12 can form another seal, when, the sealing washer 12 that is located the seal groove 11 on apopore 10 left end inner wall then can stop the rivers of seepage at first, even the sealed inefficacy that sealing washer 12 formed, rubber pad 15 also can carry out the separation through the sealed rivers to the seepage all the time that self formed, and spring 25's elasticity can play the effect of supplementary seal, when rubber pad 15 elasticity weakening leads to sealed not good, spring 25's elasticity then can sticis rubber pad 15 on the 3 outer walls of ball-type opening and closing member all the time, guarantee the leakproofness between rubber pad 15 and the ball-type opening and closing member 3 all the time, avoid appearing the problem of leaking in the at utmost, play and prevent leaking the effect.

When a square flange ball valve is needed, the spherical opening and closing element 3 can be opened by rotating the hand wheel 8, when the spherical opening and closing element 3 is opened, water flow enters the spherical opening and closing element 3 from the water inlet joint 4 and then flows into the water outlet joint 5, at the moment, the water flow entering the water outlet joint 5 can only continuously flow rightwards through the water through hole 17 on the water through plate 16 under the blocking of the water through plate 16, when the water flow flows out of the water through hole 17, the water flow inevitably impacts the push plate 18, the water pressure is larger than the elastic force of the spring 25, the push plate 18 impacted by the water flow moves rightwards under the action of the water pressure, along with the right movement of the push plate 18, the push plate 18 can pull the water through plate 16 to move rightwards through the connecting rod 19, at the moment, when the extrusion sleeve 13 moves rightwards, the extrusion sleeve 13 can drive the rubber pad 15 to move rightwards away from the spherical opening and closing element 3, and ensure that the spherical opening and closing element 3 can smoothly rotate and close the ball, will not receive the hindrance of rubber pad 15, when push pedal 18 moves to the right under the water pressure effect, some rivers then can continue to flow right through the clearance between connecting rod 19, finally flow to outside water connectors 5 through perforation 22 on the dismouting board 21, for the use, when ball-type closure 3 closed, the water pressure in the water connectors 5 suddenly falls, spring 25 elasticity is greater than the water pressure in water connectors 5, under the effect of spring 25 elasticity, it resets fast to lead to water board 16 drive extrusion cover 13, rubber pad 15 is sticis on ball-type closure 3 outer wall once more, realize sealed once more.

The right end face of the water passing plate 16 is provided with a plurality of limiting holes 26 which are uniformly distributed in the circumferential direction, the left side wall of the water passing plate 16 is provided with a plurality of limiting rods 27 corresponding to the limiting holes 26, the left end of each limiting rod 27 penetrates into the corresponding limiting hole 26 leftwards, a moving distance 28 is formed between the left end face of each limiting rod 27 and the hole bottom of the corresponding limiting hole 26, when the extrusion sleeve 13 moves rightwards to a certain degree, the left end of each limiting rod 27 can be abutted against the hole bottom of the corresponding limiting hole 26, the extrusion sleeve 13 can not move rightwards any more at the moment, so that the push plate 18 can not move rightwards any more, and the situation that water flow cannot normally flow out of the water outlet joint 5 due to the fact that the through holes 22 in the disassembly and assembly.

In the actual assembling process, in case spring 25 elasticity is too big, rivers just are very difficult to promote the push pedal right, can't guarantee that ball-type opening and closing piece 3 can not receive the hindrance of rubber pad 15 when closing, and the both sides inner wall is equipped with the stopper 29 that each other is symmetrical about the water connectors 5 right part, stopper 29 right side lateral wall laminates with the lateral wall that leads to the water board 16 left side mutually, the position when existence of stopper 29 can restrict dismouting board 21 and the 5 spiro union of water connectors, effectively avoid the too big circumstances that leads to spring 25 elasticity of compressing spring 25 in going deep into water connectors 5 in dismouting board 21 spiro union position.

Claims

1. The utility model provides a prevent square flange ball valve of leakage, includes the valve body, locates opening and close the chamber in the valve body and locate the ball-type of opening and close the intracavity and open and close the piece, both ends are equipped with water supply connector, water connectors respectively about the valve body, are equipped with the valve opening on the valve body, are equipped with the valve rod in the valve opening, and the valve rod lower extreme is connected with the ball-type piece of opening and close, and the valve opening is upwards worn out to the valve rod upper end and: the water inlet joint is communicated with the opening and closing cavity through a water inlet hole, and the diameter of the water inlet hole is smaller than the inner diameter of the water inlet joint; the water outlet joint is communicated with the opening and closing cavity through a water outlet hole, and the diameter of the water outlet hole is smaller than the inner diameter of the water outlet joint; the inner walls of the right end of the water inlet hole and the left end of the water outlet hole are provided with annular sealing grooves; the sealing groove is provided with a sealing ring matched with the sealing groove, and an orifice of an inner hole of the sealing ring is attached to the outer wall of the spherical opening and closing piece; an extrusion sleeve matched with the water outlet hole is arranged in the water outlet hole; the left end face of the extrusion sleeve is provided with an annular embedded ring; the rubber gasket matched with the embedded ring is sleeved outside the embedded ring, and the rubber gasket is annular; a water through plate is arranged at the right end port of the extrusion sleeve, and the water through plate and the extrusion sleeve are integrally formed; a plurality of water through holes which are uniformly distributed are formed in the water through plate; a plurality of push plates corresponding to the positions of the water through holes are arranged on the right side of the water through plate; the push plate is coaxial with the water through hole, and the diameter of the push plate is larger than that of the water through hole; the push plate is connected with the water passing plate through a plurality of connecting rods which are uniformly distributed on the circumference; a guide hole is formed in the center of the water passing plate; and a guide device matched with the guide hole is screwed at the right end port of the water outlet joint.

2. A leak resistant square flange ball valve as set forth in claim 1, wherein: the guide device comprises a dismounting plate in threaded connection with the port at the right end of the water outlet joint; a plurality of through holes which are uniformly distributed are arranged on the dismounting plate; a guide post coaxial with the guide hole is arranged at the center of the side wall of the left side of the dismounting plate; the left end of the guide column penetrates through the guide hole leftwards and is screwed with a limiting head; and a spring sleeved outside the guide post is arranged between the water passing plate and the dismounting plate.

3. A leak resistant square flange ball valve as set forth in claim 2, wherein: the right end face of the water passing plate is provided with a plurality of limiting holes which are uniformly distributed in the circumferential direction; the side wall of the left side of the water passing plate is provided with a plurality of limiting rods corresponding to the limiting holes; the left end of the limiting rod penetrates into the corresponding limiting hole leftwards, and a moving distance is reserved between the left end face of the limiting rod and the bottom of the limiting hole.

4. A leak resistant square flanged ball valve as set forth in claim 3, wherein: the inner walls of the upper side and the lower side of the right part of the water outlet joint are provided with mutually symmetrical limiting blocks; the side wall of the right side of the limiting block is attached to the side wall of the left side of the water passing plate.