CN217234511U

CN217234511U - Built-in low flow resistance valve clack bearing structure

Info

Publication number: CN217234511U
Application number: CN202220367235.4U
Authority: CN
Inventors: 胡朝勇; 陈东生; 龙跃; 颜明川; 谭秀琼; 朱雪雪
Original assignee: Chongqing Kete Industrial Valve Co ltd
Current assignee: Chongqing Kete Industrial Valve Co ltd
Priority date: 2022-02-23
Filing date: 2022-02-23
Publication date: 2022-08-19
Anticipated expiration: 2032-02-23

Abstract

The utility model discloses a built-in low flow resistance valve clack supporting structure, which comprises a valve body, wherein the interior of the valve body is movably connected with a piston mechanism, the interior of a flow guide cover is provided with an inner supporting mechanism, the surface of the inner supporting mechanism is provided with a tail supporting mechanism, the support of a valve clack shaft is two-stage support behind the valve clack by arranging the inner supporting mechanism and the tail supporting mechanism, a supporting plate is arranged in the flow guide cover, the supporting plate is fixed in the flow guide cover by a fixing plate and a bolt, the supporting plate provides support for a spring and support guide for a sliding sleeve, the tail supporting mechanism is arranged at the tail part of the flow guide cover, the sliding sleeve passes through the supporting plate and the fixing sleeve and is fixed, the valve clack is connected with the valve clack shaft and moves back and forth in the sliding sleeve to form a built-in two-stage supporting structure, the increase of fluid resistance brought by increasing the support is eliminated while the stability and the reliability of the valve clack support is ensured, the valve body has larger flow capacity and smaller pressure drop so as to achieve the aim of saving energy.

Description

Built-in low flow resistance valve clack bearing structure

Technical Field

The utility model belongs to the technical field of the valve, concretely relates to built-in low flow resistance valve clack bearing structure.

Background

The check valve is a valve whose opening and closing member is a circular valve clack and acts by self weight and medium pressure to block medium backflow, belonging to the automatic valve class, also called check valve, one-way valve, backflow valve or isolating valve, the valve clack motion mode is divided into lifting type and swing type, the lifting type check valve is similar to the structure of the stop valve, only lacks a valve rod for driving the valve clack, medium flows in from the inlet end (lower side) and flows out from the outlet end (upper side), when the inlet pressure is greater than the sum of the weight of the valve clack and flow resistance thereof, the valve is opened, otherwise, the valve is closed when the medium flows backwards.

The existing common double-support check valve structure on the market adopts a mode of front and back double supports of a valve clack for guiding, a support and a valve clack shaft (a valve clack is overflowed) are also designed on a valve seat, the diameter of a flow channel is reduced due to the existence of the support of the valve clack, and the medium flow resistance coefficient of the valve is greatly increased.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a built-in low flow resistance valve clack bearing structure to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the built-in low flow resistance valve clack supporting structure comprises a valve body, wherein a piston mechanism is movably connected inside the valve body, a valve seat is arranged inside the valve body, a flow guide cover is arranged on the surface of the piston mechanism, an inner supporting mechanism is arranged inside the flow guide cover, and a tail supporting mechanism is arranged on the surface of the inner supporting mechanism.

Preferably, the piston mechanism comprises a valve clack, a valve clack shaft and a spring, wherein the left side surface of the valve clack shaft is fixed at the middle end of the right side surface of the valve clack, and the left side surface of the spring is fixed at the right side surface of the valve clack.

Preferably, the valve seat is fixed on the inner wall of the left side of the valve body, the right side face of the valve seat is matched with the left side face of the valve clack, the left side face of the valve clack abuts against the right side face of the valve seat, and the valve seat is made of metal sealing materials.

Preferably, kuppe and valve body integral type casting shaping, and the right flank setting of kuppe is at the inner wall of valve body, the left surface phase-match of kuppe and the right flank of valve clack, both ends offset with the left surface of kuppe about the right flank of valve clack, valve clack and kuppe are the venturi type setting.

Preferably, the inner support mechanism comprises a support plate, a fixing plate and a bolt, the right end of the spring is fixed on the left side face of the support plate, the fixing plate and the valve body are integrally cast and formed, the fixing plate is arranged on the inner side wall of the air guide sleeve, the end part of the right side face of the support plate is abutted to the left side face of the fixing plate, threaded holes corresponding to the support plate and the fixing plate are formed in the support plate and the fixing plate, and the bolt is screwed in the threaded holes.

Preferably, tail supporting mechanism includes the sliding sleeve, the surface at the sliding sleeve is established to the spring housing, the inner wall of backup pad is fixed in the lateral surface middle-end of sliding sleeve, valve lamella axle sliding connection is in the inside of sliding sleeve.

Preferably, the tail supporting mechanism further comprises a fixing sleeve and a through hole, the through hole is formed between the fixing sleeve and the flow guide sleeve, the fixing sleeve and the valve body are integrally cast and molded, and the sliding sleeve is fixed on the inner wall of the fixing sleeve.

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

when the valve body works normally, the valve clack is subjected to rightward acting force and pushes the spring to move rightwards, so that the valve clack is abutted against the surface of the flow guide cover, the valve clack and the flow guide cover form a smooth Venturi shape, the flow resistance of a medium is lowest, when the medium flows reversely, the valve clack is not subjected to rightward pushing force any more, the spring releases elastic force to push the valve clack to move leftwards and abut against the surface of the valve seat, metal hard sealing is realized, the valve body is suitable for occasions with serious scouring and frequent action, impact resistance is realized, and the service life is long.

The built-in low-flow-resistance valve clack supporting structure is characterized in that an inner supporting mechanism and a tail supporting mechanism are arranged, a valve clack shaft is supported in two stages behind a valve clack, a supporting plate is arranged in a flow guide cover and fixed in the flow guide cover through a fixing plate and a bolt, the supporting plate provides support for a spring and support guide of a sliding sleeve, the tail supporting mechanism is arranged at the tail of the flow guide cover, double supporting points of the sliding sleeve are fixed, the valve clack is connected with the valve clack shaft and moves back and forth in the sliding sleeve, and a built-in two-stage supporting structure is formed.

Drawings

Fig. 1 is a perspective view of the present invention;

fig. 2 is a front sectional view of the present invention;

fig. 3 is an enlarged view of the structure a in fig. 2 according to the present invention;

fig. 4 is an enlarged view of the structure at B in fig. 2 according to the present invention.

In the figure: 1. a valve body; 2. a piston mechanism; 201. a valve flap; 202. a valve flap shaft; 203. a spring; 3. a valve seat; 4. a pod; 5. an inner support mechanism; 501. a support plate; 502. a fixing plate; 503. a bolt; 6. a tail support mechanism; 601. a sliding sleeve; 602. fixing a sleeve; 603. and a through hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, 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 all belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a built-in low flow resistance valve flap supporting structure, which includes a valve body 1, a piston mechanism 2 movably connected inside the valve body 1, a valve seat 3 disposed inside the valve body 1, a dome 4 disposed on the surface of the piston mechanism 2, an inner supporting mechanism 5 disposed inside the dome 4, and a tail supporting mechanism 6 disposed on the surface of the inner supporting mechanism 5.

In this embodiment, preferably, the piston mechanism 2 includes a valve flap 201, a valve flap shaft 202 and a spring 203, the left side surface of the valve flap shaft 202 is fixed at the middle end of the right side surface of the valve flap 201, the left side surface of the spring 203 is fixed at the right side surface of the valve flap 201, when the medium flows reversely, the valve flap 201 does not bear a rightward thrust, the spring 203 releases the elastic force to push the valve flap 201 to move leftward, so that the left side surface of the valve flap 201 and the right side surface of the valve seat 3 are tightly attached to form a seal, the valve body 1 is closed, and the larger the reverse pressure is, the better the seal is.

In this embodiment, preferably, the valve seat 3 is fixed on the left inner wall of the valve body 1, the right side surface of the valve seat 3 is matched with the left side surface of the valve clack 201, the left side surface of the valve clack 201 abuts against the right side surface of the valve seat 3, the valve seat 3 is made of metal sealing material, and the sealing surface of the valve clack 201 and the valve seat 3 is made of metal hard sealing mode.

In this embodiment, it is preferred,

kuppe

4 and 1 integral type casting forming of valve body, and the right flank setting of kuppe 4 is at the inner wall of valve body 1, the left surface of kuppe 4 and the right flank phase-match of valve clack 201, both ends offset with the left surface of kuppe 4 about the right flank of valve clack 201, valve clack 201 is venturi type setting with kuppe 4, when valve body 1 normally works, the left surface of valve clack 201 receives pressure, make spring 203 move to the right side, then make the right flank of valve clack 201 closely laminate with the left surface of kuppe 4, this moment valve clack 201 and kuppe 4 form glossy venturi type, extremely short reaction time has been obtained, it is level and quick when closing, the medium flow resistance reaches minimum this moment.

In this embodiment, the inner support mechanism 5 preferably includes a support plate 501, a fixing plate 502, and a bolt 503, the right end of the spring 203 is fixed to the left side surface of the support plate 501, the fixing plate 502 is integrally cast with the valve body 1, the fixing plate 502 is arranged on the inner side wall of the air guide sleeve 4, the end part of the right side surface of the supporting plate 501 is abutted against the left side surface of the fixing plate 502, the corresponding threaded holes are respectively arranged in the supporting plate 501 and the fixing plate 502, the bolt 503 is screwed in the threaded holes, the supporting plate 501 is fixed in the air guide sleeve 4 through the fixing plate 502 and the bolt 503, the supporting and fixing of the sliding sleeve 601 are realized, a built-in supporting structure is formed, the valve clack 201 is stably and reliably supported, and meanwhile, the increase of fluid resistance caused by the increase of the support is eliminated, so that the valve body 1 has larger flow capacity and smaller pressure drop, and the purpose of saving energy is achieved.

In this embodiment, preferably, the tail support mechanism 6 includes a sliding sleeve 601, the spring 203 is sleeved on the surface of the sliding sleeve 601, the inner wall of the support plate 501 is fixed at the middle end of the outer side surface of the sliding sleeve 601, the valve flap shaft 202 is slidably connected inside the sliding sleeve 601, and by fixing the sliding sleeve 601 inside the support plate 501, the fixed support of the sliding sleeve 601 is realized, and then the guiding of the movement of the valve flap shaft 202 is realized.

In this embodiment, preferably, the tail support mechanism 6 further includes a fixing sleeve 602 and a through hole 603, the through hole 603 is provided between the fixing sleeve 602 and the air guide sleeve 4, the fixing sleeve and the valve body 1 are integrally cast, the sliding sleeve 601 is fixed on the inner wall of the fixing sleeve 602, pressure is balanced through the through hole 603, and the fixing sleeve 602 and the sliding sleeve 601 are fixedly mounted, so that secondary support on the sliding sleeve 601 is realized, and stability of movement of the valve flap shaft 202 is ensured.

The utility model discloses a theory of operation and use flow: the support of the valve flap shaft 202 is two-stage support behind the valve flap 201, a support plate 501 is arranged in the air guide sleeve 4, the support plate 501 is fixed in the air guide sleeve 4 through a fixing plate 502 and a bolt 503, the support plate 501 provides support for the spring 203 and support guide of the sliding sleeve 601, the other support is arranged at the tail part of the air guide sleeve 4, the sliding sleeve 601 passes through double support points and is fixed, the valve flap 201 is connected with the valve flap shaft 202 and moves back and forth in the sliding sleeve 601, when the valve body 1 normally works, the left side surface of the valve flap 201 is subjected to pressure action, so that the spring 203 moves towards the right side, and then the right side surface of the valve flap 201 is tightly attached to the left side surface of the air guide sleeve 4, at the moment, the valve flap 201 and the air guide sleeve 4 form a smooth Venturi shape, extremely short reaction time is obtained, the valve flap is smooth and fast when being closed, the flow resistance of a medium is lowest, when the medium reversely flows, the valve flap 201 is not subjected to a rightward thrust, the spring 203 releases elasticity and pushes the valve clack 201 to move leftwards, so that the left side face of the valve clack 201 is tightly attached to the right side face of the valve seat 3 to form sealing, the valve body 1 is closed, the larger the reverse pressure is, the better the sealing is, the sealing face of the valve clack 201 and the valve seat 3 adopts a metal hard sealing mode, the sealing mode is suitable for occasions with more serious scouring and frequent actions, impact resistance can be realized, the service life is long, the structure is simple, and the popularization is suitable.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a built-in low flow resistance valve clack bearing structure, includes valve body (1), its characterized in that: the inside swing joint of valve body (1) has piston mechanism (2), and the inside of valve body (1) is provided with disk seat (3), the surface of piston mechanism (2) is provided with kuppe (4), the inside of kuppe (4) is provided with interior supporting mechanism (5), the surface of interior supporting mechanism (5) is provided with tail supporting mechanism (6).

2. The built-in low flow resistance flap support structure of claim 1, wherein: the piston mechanism (2) comprises a valve clack (201), a valve clack shaft (202) and a spring (203), wherein the left side surface of the valve clack shaft (202) is fixed at the middle end of the right side surface of the valve clack (201), and the left side surface of the spring (203) is fixed at the right side surface of the valve clack (201).

3. The built-in low flow resistance flap support structure of claim 2, wherein: the valve seat (3) is fixed on the inner wall of the left side of the valve body (1), the right side face of the valve seat (3) is matched with the left side face of the valve clack (201), the left side face of the valve clack (201) is abutted to the right side face of the valve seat (3), and the valve seat (3) is made of metal sealing materials.

4. The built-in low flow resistance flap support structure of claim 2, wherein: kuppe (4) and valve body (1) integral type casting, and the right flank setting of kuppe (4) is at the inner wall of valve body (1), the left surface of kuppe (4) and the right flank phase-match of valve clack (201), both ends offset with the left surface of kuppe (4) about the right flank of valve clack (201), valve clack (201) are venturi type setting with kuppe (4).

5. The built-in low flow resistance flap support structure of claim 2, wherein: interior supporting mechanism (5) are including backup pad (501), fixed plate (502) and bolt (503), the left surface in backup pad (501) is fixed to the right-hand member of spring (203), fixed plate (502) and valve body (1) integral type casting shaping, and fixed plate (502) set up the side inner wall at kuppe (4), the right flank tip of backup pad (501) offsets with the left surface of fixed plate (502), the screw hole that corresponds the setting is all seted up to the inside of backup pad (501) and fixed plate (502), bolt (503) spiro union is in the inside of screw hole.

6. The built-in low flow resistance flap support structure of claim 5, wherein: tail supporting mechanism (6) include sliding sleeve (601), the surface at sliding sleeve (601) is established in spring (203) cover, the lateral surface middle-end at sliding sleeve (601) is fixed to the inner wall of backup pad (501), valve lamella axle (202) sliding connection is in the inside of sliding sleeve (601).

7. The built-in low flow resistance flap support structure of claim 6, wherein: tail supporting mechanism (6) still include fixed cover (602) and through-hole (603), set up between fixed cover (602) and kuppe (4) through-hole (603), fixed cover and valve body (1) integral type casting shaping, the inner wall at fixed cover (602) is fixed in slip cap (601).