CN216951829U

CN216951829U - Axial flow type check valve with emergency sealing system

Info

Publication number: CN216951829U
Application number: CN202220323517.4U
Authority: CN
Inventors: 胡朝勇; 陈东生; 颜明川; 朱雪雪; 龙跃
Original assignee: Chongqing Kete Industrial Valve Co ltd
Current assignee: Chongqing Kete Industrial Valve Co ltd
Priority date: 2022-02-17
Filing date: 2022-02-17
Publication date: 2022-07-12
Anticipated expiration: 2032-02-17

Abstract

The utility model discloses an axial flow check valve with an emergency sealing system, which comprises a valve body, wherein a valve seat is fixedly arranged inside the right side of the valve body, an annular groove is formed inside the left side of the valve seat, a communicating hole is connected to the right side of the annular groove, a grease injection nozzle is fixedly arranged at the upper end of the right side of the valve body, the lower end of the grease injection nozzle is connected with the communicating hole, a sealing mechanism is arranged inside the valve body and comprises a bushing, the bushing is fixedly arranged inside the left side of the valve body, and when a sealing surface is damaged due to the closing of a valve in the production process, the temporary sealing effect can be achieved by injecting auxiliary sealing grease, so that the device is prevented from stopping or a pipeline is prevented from stopping, unnecessary loss is avoided, and cleaning fluid can be injected into the grease injection nozzle, the dirt on the sealing surfaces of the valve seat and the valve clack is cleaned, so that the service life of the valve seat and the valve clack is prolonged.

Description

Axial flow type check valve with emergency sealing system

Technical Field

The utility model belongs to the technical field of valves, and particularly relates to an axial flow type check valve with an emergency sealing system.

Background

The valves are used for opening and closing pipelines, controlling flow direction, adjusting and controlling parameters of conveying media, and can be divided into shut-off valves, check valves, regulating valves and the like according to functions of the valves, wherein the valves are control parts in a fluid conveying system and have functions of stopping, adjusting, guiding, preventing backflow, stabilizing pressure, shunting or overflowing and relieving pressure, and the valves used for the fluid control system range from the simplest stop valves to various valves used in extremely complex automatic control systems, and the variety and the specification of the valves are quite various.

On the existing market, the axial-flow type check valve is because of its compact structure, compare in over-and-under type check valve, the axial-flow type check valve operates steadily, the flow resistance coefficient is little, water hammer pressure is little, the flow state is good, and it is fast to medium pressure variation corresponding speed, have the advantage that low noise and leakproofness are good concurrently, wide application on market, but in long-time use, sealed face is difficult to avoid receiving erodeing and corroding of medium, thereby cause the sealing ring to damage and cause the leakage, can not roll off the production line maintenance at will again in the production process, can't promptly seal in the use, for this reason we provide an axial-flow type check valve of emergent sealing system in area.

SUMMERY OF THE UTILITY MODEL

The present invention aims to provide an axial flow check valve with an emergency sealing system to solve the problems set forth in the background art.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides an axial-flow type check valve of emergent sealing system in area, includes the valve body, the inside fixed mounting in right side of valve body has the disk seat, the inside ring channel of having seted up in left side of disk seat, the right side of ring channel is connected with the intercommunicating pore, the right side upper end fixed mounting of valve body has notes fat mouth, and the lower extreme of annotating the fat mouth is connected with the intercommunicating pore, the inside of valve body is provided with sealing mechanism.

Preferably, sealing mechanism includes the bush, bush fixed mounting is inside the left side of valve body, the inside movable mounting of bush has the valve clack axle, the right side surface cover of valve clack axle is equipped with the valve clack, the right side of valve clack offsets with the left side of disk seat, the right-hand member of valve clack axle runs through the disk seat and is connected with three ring-opening.

Preferably, the upper end of the grease injection nozzle is in threaded connection with a sealing cover.

Preferably, the left end surface of the valve seat is sleeved with a sealing ring, and the left end of the sealing ring is in close contact with the right end of the valve clack.

Preferably, a pre-tightening spring is sleeved on the surface of the valve clack shaft, the left end of the pre-tightening spring abuts against the right end of the bushing, and the right end of the pre-tightening spring abuts against the left end of the valve clack.

Preferably, a through hole is formed in the bushing, and the left end of the valve flap shaft is in sliding fit with the bushing.

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

this take emergent sealing system's axial-flow type check valve, through the inside ring channel that sets up of disk seat, the notes fat mouth that sets up on intercommunicating pore and the valve body, can be in process of production, when the valve is closed and sealed face damage, through the mode of pouring into supplementary sealed fat, can play the effect of temporary seal, thereby avoid the device to park or the pipeline to shut down, cause the unnecessary loss, also can be in notes fat mouth department simultaneously through pouring into the washing liquid, clean disk seat and the sealed face dirt of valve clack, let its life increase.

Drawings

FIG. 1 is a schematic perspective view of the valve seat of the present invention;

FIG. 2 is a front cross-sectional view of the present invention;

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

In the figure: 1. a valve body; 2. a valve seat; 3. an annular groove; 4. a communicating hole; 5. a grease injection nozzle; 6. a sealing cover; 7. a sealing mechanism; 701. a bushing; 702. a valve flap shaft; 703. pre-tightening the spring; 704. a valve flap; 705. opening a ring; 8. and (5) sealing rings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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.

Referring to fig. 1-3, the present invention provides an axial flow check valve with an emergency sealing system, including a valve body 1, a valve seat 2 is fixedly installed inside a right side of the valve body 1, an annular groove 3 is formed inside a left side of the valve seat 2, a communication hole 4 is connected to a right side of the annular groove 3, a grease injection nozzle 5 is fixedly installed at an upper end of the right side of the valve body 1, a lower end of the grease injection nozzle 5 is connected to the communication hole 4, and a sealing mechanism 7 is installed inside the valve body 1.

In this embodiment, preferably, the sealing mechanism 7 includes a bushing 701, the bushing 701 is fixedly installed inside the left side of the valve body 1, the inside movable mounting of the bushing 701 has a valve flap shaft 702, the right side surface cover of the valve flap shaft 702 is equipped with a valve flap 704, the right side of the valve flap 704 offsets with the left side of the valve seat 2, the right end of the valve flap shaft 702 penetrates through the valve seat 2 and is connected with a three-open ring 705, the valve flap shaft 702 can be driven to move horizontally left and right through the three-open ring 705, when the valve flap shaft 702 moves rightwards so that the valve flap 704 contacts with the valve seat 2, the inside of the valve body 1 can be sealed, and then the sealing function of the valve is realized.

In this embodiment, preferably, the upper end of the grease injection nozzle 5 is screwed with the sealing cover 6, and the sealing cover 6 is arranged to protect the grease injection nozzle 5 and prevent external impurities and the like from entering the communicating hole 4 from the grease injection nozzle 5 and affecting the use of the communicating hole 4.

In this embodiment, preferred, the left end surface cover of disk seat 2 is equipped with sealing washer 8, and the left end of sealing washer 8 and the right-hand member in close contact with of valve clack 704, the setting of sealing washer 8 can improve the sealed effect between disk seat 2 and the valve clack 704, improves the holistic sealed effect of valve body 1 then.

In this embodiment, preferably, the surface cover of the valve flap shaft 702 is provided with the pre-tightening spring 703, the left end of the pre-tightening spring 703 abuts against the right end of the bushing 701, the right end of the pre-tightening spring 703 abuts against the left end of the valve flap 704, and the pre-tightening spring 703 can apply a rightward force to the valve flap 704, so that the left end of the valve flap 704 is attached to the valve seat 2 more tightly, and the sealing ring 8 can be squeezed simultaneously, so that the sealing ring 8 is stretched outwards, and thus the sealing effect of the valve body 1 is better.

In this embodiment, preferably, a through hole is formed in the bushing 701, the left end of the valve flap shaft 702 is in sliding fit with the bushing 701, and the arrangement of the structure can provide a moving space for the valve flap shaft 702, so that the valve flap shaft 702 can smoothly drive the valve flap 704 to move left and right.

The working principle and the using process of the utility model are as follows: when the device uses, after the valve is closed, the right side of valve clack 704 and the left end in close contact with of disk seat 2, thereby can make valve body 1 sealed, when the sealed face of valve body 1 damages and leads to liquid to reveal, unscrew sealed lid 6, will seal the fat injection and annotate fat mouth 5 inside, the sealed fat of injecting into in the fat injection mouth 5 passes through the intercommunicating pore 4 and gets into inside annular groove 3, thereby form the higher sealing layer of round viscosity between valve clack 704 and disk seat 2, thereby play the effect of sealing temporarily, effect through temporary seal, can avoid device parking or pipeline to shut down, cause the unnecessary loss, can dismantle when treating the valve maintenance and get off and maintain.

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 utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An axial-flow check valve with an emergency sealing system comprises a valve body (1), and is characterized in that: the inside fixed mounting in right side of valve body (1) has disk seat (2), ring channel (3) have been seted up to the left side inside of disk seat (2), the right side of ring channel (3) is connected with intercommunicating pore (4), the right side upper end fixed mounting of valve body (1) has notes fat mouth (5), and the lower extreme of annotating fat mouth (5) is connected with intercommunicating pore (4), the inside of valve body (1) is provided with sealing mechanism (7).

2. The axial flow check valve with emergency seal system of claim 1, further comprising: sealing mechanism (7) are including bush (701), inside bush (701) fixed mounting is in the left side of valve body (1), the inside movable mounting of bush (701) has valve flap axle (702), the right side surface cover of valve flap axle (702) is equipped with valve flap (704), the right side of valve flap (704) offsets with the left side of valve seat (2), the right-hand member of valve flap axle (702) runs through valve seat (2) and is connected with three ring-opening (705).

3. The axial flow check valve with emergency seal system of claim 1, further comprising: the upper end of the grease injection nozzle (5) is in threaded connection with a sealing cover (6).

4. The axial flow check valve with emergency seal system of claim 2, wherein: the left end surface cover of disk seat (2) is equipped with sealing washer (8), the left end of sealing washer (8) and the right-hand member in close contact with of valve clack (704).

5. The axial flow check valve with emergency seal system of claim 2, wherein: the surface of the valve clack shaft (702) is sleeved with a pre-tightening spring (703), the left end of the pre-tightening spring (703) is abutted against the right end of the bushing (701), and the right end of the pre-tightening spring (703) is abutted against the left end of the valve clack (704).

6. The axial flow check valve with emergency seal system of claim 2, wherein: a through hole is formed in the bushing (701), and the left end of the valve flap shaft (702) is in sliding fit with the bushing (701).