CN209959944U

CN209959944U - Fan check valve

Info

Publication number: CN209959944U
Application number: CN201920903880.1U
Authority: CN
Inventors: 王红华; 邓剑锋; 刘后超
Original assignee: Jiangsu Helen Environmental Protection Equipment Co Ltd
Current assignee: Jiangsu Helen Environmental Protection Equipment Co Ltd
Priority date: 2019-06-17
Filing date: 2019-06-17
Publication date: 2020-01-17
Anticipated expiration: 2029-06-17

Abstract

The utility model relates to the technical field of valves, specifically be a fan check valve, including last valve body and with go up the lower valve body of valve body coupling go up the inside of valve body and be equipped with a plurality of registration arms the inside spring that rises that is equipped with of registration arm the lower extreme of spring that rises be equipped with the mutual complex sliding tube of registration arm, the lower extreme of sliding tube is equipped with the hemisphere valve that the parcel has the sealing washer, the valve sets up go up between valve body and the lower valve body the inside of lower valve body be equipped with the holding tank of mutually supporting of sealing washer. Go up the wall portion of valve body and be equipped with transition portion, thereby transition portion with thereby the slip pipe is mutually supported and is realized that the slip pipe passes transition portion and slides from top to bottom the lower extreme of sealing washer is equipped with the iron plate the upper end of transition portion be equipped with the electromagnetic ring of iron plate mutually supporting, the utility model discloses simple structure.

Description

Fan check valve

Technical Field

The utility model relates to the technical field of valves, specifically a fan check valve.

Background

The tail end of each dust collector is matched with an air blower, the air blower is communicated with the corresponding dust collector through a dust pipeline, and in order to prevent dust in the dust collector from being poured into a compressor of the air blower when the air blower is broken, a fan check valve is generally required to be arranged at an outlet of the air blower.

Application number is 201820263735.7 discloses a resilience formula check valve, the utility model discloses characterized in that, resilience formula check valve includes: the device comprises a container part, a tray, a hemispherical shell type valve, a flange gasket, a sealing washer and an elastic part; the container part consists of a containing chamber, an upper flange plate and a positioning pipe; the tray is provided with a circular groove, a valve port and a lower flange; the hemispherical shell-shaped valve consists of a valve head, an annular convex prism table and a positioning column; the flange gasket is arranged between the upper flange plate and the lower flange plate; the sealing washer is arranged in the circular groove. The hemisphere shell valve can make opening and closing of hemisphere shell shape valve accuracy under the effect of reference column and registration arm and the effect of valve head, can avoid the valve skew axis's the condition to appear, forms a cavity in the valve head, and the pressure that brings when can making the fluid backward flow is concentrated in the cavity, further improves valve closing force, and then improves sealed effect, and container spare passes through flange structural connection with the tray, and convenient to overhaul or change part.

However, the utility model is mainly applied in controlling the direction of fluid flow, i.e. mainly in the field of fluids, such as: oil, gas, etc., which are free of particulate impurities and have a steady and continuous flow rate.

The technician of my factory after buying this patent material object, directly uses on this company's dust pipeline, discovers that the hemisphere valve is backed down the back, in case the dust velocity of flow is weak partially, and large granule dust can be piled up in hemisphere valve department, causes the dust to be difficult to inhale the dust collector by the air-blower in, causes the contrast file to overhaul frequently, and is difficult to the work of persistence, seriously influences my factory's in-service use effect.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a fan check valve, can improve prior art basis on, the in-service use of my factory more laminates to prior art not enough.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the fan check valve is characterized by comprising an upper valve body and a lower valve body connected with the upper valve body, wherein a plurality of positioning pipes are arranged inside the upper valve body, an expansion spring is arranged inside each positioning pipe, a sliding pipe matched with each other is arranged at the lower end of the expansion spring, a hemispherical valve wrapped with a sealing ring is arranged at the lower end of the sliding pipe, the valve is arranged between the upper valve body and the lower valve body, and a containing groove matched with the sealing ring is formed in the lower valve body. The wall portion of going up the valve body is equipped with transition portion, thereby transition portion with thereby the realization slip pipe of mutually supporting passes transition portion and slides from top to bottom the lower extreme of sealing washer is equipped with the iron plate the upper end of transition portion be equipped with the electromagnetic ring of iron plate mutually supporting.

Preferably, the lower surface of the valve is provided with a plurality of convex parts, and the convex parts are hemispherical.

Preferably, the electromagnet ring is arranged inside the transition portion.

(III) advantageous effects

The utility model provides a fan check valve possesses following beneficial effect: can improve the prior art basis, more fit my factory's in-service use.

Drawings

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

FIG. 2 is a schematic view of the transition portion of the present invention;

fig. 3 is another schematic structural diagram of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying 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 embodiment in the utility model, what ordinary skill in the art obtained under the prerequisite of not making the creative work all belongs to the scope of protection of the utility model.

Example one

Referring to fig. 1-3, a fan check valve is characterized by comprising an upper valve body 1 and a lower valve body 2 connected with the upper valve body, wherein a plurality of positioning pipes 3 are arranged inside the upper valve body, an expansion spring 4 is arranged inside the positioning pipes, a sliding pipe 5 matched with the positioning pipes is arranged at the lower end of the expansion spring, a hemispherical valve 7 wrapped with a sealing ring 6 is arranged at the lower end of the sliding pipe, the valve is arranged between the upper valve body and the lower valve body, and an accommodating groove 8 matched with the sealing ring is arranged inside the lower valve body. The wall portion of going up the valve body is equipped with transition portion 9, thereby transition portion with the slip pipe is mutually supported realizes that the slip pipe passes transition portion and slides from top to bottom the lower extreme of sealing washer is equipped with iron plate 10 the upper end of transition portion be equipped with the electromagnetic ring 11 that the iron plate was mutually supported.

Preferably, the electromagnet ring is arranged inside the transition portion.

A rebound check valve disclosed in application No. 201820263735.7 has been detailed to summarize all the component structures and operational principles of the application.

The present application is an improvement made on the basis of the comparison document, so that the disclosed composition of the comparison document is not repeated in the present application.

Working principle of the application

Because the dust collector of my factory collects impurity including large granule dust and little saw-dust, this dust mainly relies on the air-blower (in the air-blower inhales the dust collector promptly, then the release in the truck, drags away) to realize the collection to the dust, and when the hemisphere valve was passed to large granule dust, the easy card was in the lower extreme of valve, is difficult to pass through the valve, and in the time of the long term, the lower extreme of valve can be blockked up by the dust, influences in-service use.

The way of my factory is, add the iron plate (or need not add the iron plate, this moment, just need the hemisphere valve material be adsorbable) in the upper end of hemisphere valve to add transition portion in last valve body, the existence of transition portion is for better placing the electromagnetic ring, the electromagnetic ring circular telegram, there is magnetism promptly, at this moment, the magnetism adsorbs the iron plate, can adsorb the iron plate to the electromagnetic ring of transition portion on, so, the hemisphere valve is opened, the dust that passes through that can last, no matter large granule or other impurity.

The magnetism of the electromagnetic coil is adjustable, and the specific working principle is not described in detail herein.

Of course, other materials (other than the iron block or the hemispherical valve) are preferably not magnetic or are difficult to be attracted by the solenoid.

What is a plurality of protrusions are arranged on the lower surface of the valve? This is because the existence of the convex part can avoid increasing the contact area of the dust and the hemispherical valve, and promote the hemispherical valve to be opened (under the premise of not opening the electromagnetic ring, but it is easy to block the dust, causing the dust to gather there, but in order to reduce the energy loss by opening the electromagnetic ring under some circumstances, for example, when the air quantity is enough to open the valve).

The electromagnetic ring is arranged on the transition part, and the transition part not only can play a role in limiting the sliding pipe, but also is convenient for placing the electromagnetic ring.

The power supply of the electromagnetic coil extends out of the upper valve body through the transition part.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The use of the phrase "comprising one of the elements does not exclude the presence of other like elements in the process, method, article, or apparatus that comprises the element.

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. A fan check valve is characterized by comprising an upper valve body and a lower valve body connected with the upper valve body, wherein a plurality of positioning pipes are arranged inside the upper valve body, an expansion spring is arranged inside the positioning pipes, a sliding pipe matched with the positioning pipes is arranged at the lower end of the expansion spring, a hemispherical valve wrapped with a sealing ring is arranged at the lower end of the sliding pipe, the valve is arranged between the upper valve body and the lower valve body, and an accommodating groove matched with the sealing ring is arranged inside the lower valve body; the wall portion of going up the valve body is equipped with transition portion, thereby transition portion with thereby the realization slip pipe of mutually supporting passes transition portion and slides from top to bottom the lower extreme of sealing washer is equipped with the iron plate the upper end of transition portion be equipped with the electromagnetic ring of iron plate mutually supporting.

2. The fan check valve of claim 1, wherein the lower surface of the valve has a plurality of protrusions, wherein the protrusions are hemispherical.

3. The fan check valve of claim 1, wherein the solenoid is disposed within the transition section.