CN219082335U

CN219082335U - One-way valve for conveying diaphragm pump containing large-particle materials

Info

Publication number: CN219082335U
Application number: CN202223243616.0U
Authority: CN
Inventors: 项骏锋; 兰轩; 康灿
Original assignee: Jiangsu University
Current assignee: Jiangsu University
Priority date: 2022-12-05
Filing date: 2022-12-05
Publication date: 2023-05-26
Anticipated expiration: 2032-12-05

Abstract

The utility model discloses a one-way valve for a diaphragm pump for conveying large-particle materials, which comprises a valve body, a plurality of valve clacks and a plurality of rotating shaft seats, wherein a material channel is formed in the center of the valve body; the two sides of the valve clacks are provided with rotating shafts connected with rotating shaft seats, connecting holes are formed in the rotating shaft seats, and a rotating shaft seat is arranged between every two adjacent valve clacks; the rotating shaft is provided with a limiting rod, the inner side wall of the connecting hole is provided with a limiting groove for the limiting rod to move, and the rotating shaft of the limiting rod is vertical. The valve is opened and closed by means of pressure change of the working cavity in the pump body, external energy is not needed to be involved, meanwhile, fluid flows through a material channel in the center of the valve body, compared with the traditional spherical one-way valve, the valve is large in overflow, the material passing rate in unit time can be effectively improved, friction between materials and the valve body is reduced, and the working performance of the diaphragm pump is greatly improved.

Description

One-way valve for conveying diaphragm pump containing large-particle materials

Technical Field

The utility model relates to the field of check valves, in particular to a check valve for a diaphragm pump for conveying materials containing large particles.

Background

When the diaphragm pump works, the diaphragm sheets at the left end and the right end do left-right reciprocating motion in a following way under the reciprocating motion action of the connecting rod shaft. The left and right pump chambers are respectively provided with an upper set of unidirectional ball valves and a lower set of unidirectional ball valves, and the left and right movement of the diaphragm leads the volume in the pump chambers to change regularly, so that the four unidirectional ball valves are forced to be opened and closed alternately. When the ball valve is opened, the ball body at the inlet end moves upwards to the support frame under the action of pressure, and fluid bypasses the ball body and flows out of the gap of the support frame; when the ball valve is closed, the ball is pressed to fit with the sealing seat to prevent fluid from flowing through. The principle of the outlet end ball valve is the same as that of the inlet end ball valve, and the outlet end ball valve and the inlet end ball valve repeatedly operate in the same way to realize the working cycle of the diaphragm pump.

At present, most of traditional diaphragm pumps adopt ball valve type one-way valves, and when the diaphragm pumps run, because the ball is positioned at the center of a pipeline, the overflow section surface is a gap between the ball and the shell. For the check valve of the diaphragm pump for conveying materials containing large particles, the check valve is easy to break due to large material particles and small flow cross section area, so that the abrasion of the check valve is quickened, and the flow efficiency in a pipeline is reduced, thereby causing the loss of the working efficiency of the diaphragm pump.

In view of the above, the present inventors have made intensive studies to solve the above-mentioned drawbacks of the prior art.

Disclosure of Invention

The utility model mainly aims to provide a one-way valve for a diaphragm pump for conveying large-particle-containing materials, and solves the problems in the background art.

In order to achieve the above object, the solution of the present utility model is: the one-way valve for conveying the diaphragm pump containing the large-particle materials comprises a valve body, a plurality of valve clacks and a plurality of rotating shaft seats, wherein a material channel is formed in the center of the valve body, the valve clacks are rotatably arranged on the rotating shaft seats, the rotating shaft seats are fixedly arranged on the valve body, and the valve clacks are matched with each other to seal the material channel; the two sides of the valve clack are provided with rotating shafts connected with the rotating shaft seats, the rotating shaft seats are provided with connecting holes matched with the rotating shafts, and one rotating shaft seat is arranged between every two adjacent valve clacks; the rotary shaft is provided with a limiting rod, a limiting groove for the limiting rod to move is formed in the inner side wall of the connecting hole, and the limiting rod is perpendicular to the rotary shaft.

Further, the valve clack is isosceles triangle, the valve clack has four, four valve clacks form the quadrangular cone after laminating.

Further, the rotation angle of the valve clack is 30-70 degrees.

Further, the rotating shaft seats are spherical, the connecting holes point to the spherical centers of the rotating shaft seats, two connecting holes are formed in each rotating shaft seat, and the axes of the two connecting holes are perpendicular.

Further, the cross section of the material channel is circular.

By adopting the structure, the utility model relates to the one-way valve for conveying the diaphragm pump containing large-particle materials, compared with the prior art, the one-way valve realizes opening and closing by means of pressure change of the working cavity in the pump body, external energy intervention is not needed, meanwhile, fluid flows through the material channel in the center of the valve body, compared with the traditional spherical one-way valve, the one-way valve has larger overflow rate, the material passing rate in unit time can be effectively improved, the friction between the material and the valve body is reduced, and the working performance of the diaphragm pump is greatly improved.

Drawings

FIG. 1 is a schematic view of the structure of the valve flap of the present utility model when it is closed;

FIG. 2 is a schematic diagram of the structure of the valve flap of the present utility model when it is deployed;

FIG. 3 is a schematic structural view of a valve flap;

fig. 4 is a schematic structural diagram of the rotating shaft seat.

Legend description: valve body 1, material passageway 11, valve clack 2, rotation axis 21, gag lever post 22, pivot seat 3, connecting hole 31, spacing groove 32.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are based on directions or positional relationships shown in the drawings, are merely for convenience of description and simplification of description, and do not indicate or imply that the apparatus or element to be referred to must have a specific direction, be constructed and operated in the specific direction, and thus should not be construed as limiting the present utility model; the terms "first," "second," "third," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "coupled," and the like are to be construed broadly, and may be fixedly coupled, detachably coupled, or integrally coupled, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

As shown in fig. 1-4, a one-way valve for a diaphragm pump for conveying large-particle-containing materials comprises a valve body 1, a plurality of valve clacks 2 and a plurality of rotating shaft seats 3, wherein a material channel 11 is formed in the center of the valve body 1, and the cross section of the material channel 11 is circular; the valve clacks 2 are rotatably arranged on the rotating shaft seat 3, the rotating shaft seat 3 is fixedly arranged on the valve body 1, and the valve clacks 2 are matched with each other to seal the material channel 11; the two sides of the valve clacks 2 are provided with rotating shafts 21 connected with the rotating shaft seats 3, the rotating shaft seats 3 are provided with connecting holes 31 matched with the rotating shafts 21, and one rotating shaft seat 3 is arranged between every two adjacent valve clacks 2; the rotation shaft 21 is provided with a limit rod 22, the inner side wall of the connecting hole 31 is provided with a limit groove 32 for the limit rod 22 to move, and the rotation shaft 21 of the limit rod 22 is vertical. In this embodiment, the projection of the valve clack 2 on the horizontal plane is isosceles triangle, the valve clack 2 has four, and four valve clacks 2 form the pyramid after laminating, seal the material passageway 11. The limit groove 32 is arc-shaped, the limit rod 22 slides in the limit groove 32, and the rotation angle of the valve clack 2 is 30-70 degrees.

In this embodiment, the rotating shaft seat 3 is spherical, a part of the rotating shaft seat 3 is embedded on the valve body 1, the connecting holes 31 point to the sphere center of the rotating shaft seat 3, two connecting holes 31 are formed on each rotating shaft seat 3, the two connecting holes 31 are at the same horizontal height, and the axes of the two connecting holes 31 are perpendicular.

The working principle of the embodiment is as follows: firstly, the valve body 1 is vertically arranged in the vertical diaphragm pump, one side with the valve clack 2 faces upwards, when the diaphragm pump works to suck materials, the valve body 1 at the inlet is subjected to forward opening pressure from bottom to top, the valve clack 2 is automatically unfolded, but under the action of the limiting rod 22 and the limiting groove 32, the valve clack 2 only rotates by 30 degrees to 70 degrees, large-particle materials flow through the material channel 11 at the moment, when the diaphragm pump stops working, the valve clack 2 reversely rotates under the action of self gravity, so that the valve clack is closed, sealing is completed when no overcurrent is needed, and fluid is prevented from flowing through the material channel 11.

Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.

Claims

1. The one-way valve for the diaphragm pump for conveying the large-particle-containing materials is characterized by comprising a valve body, a plurality of valve clacks and a plurality of rotating shaft seats, wherein a material channel is formed in the center of the valve body, the valve clacks are rotatably arranged on the rotating shaft seats, the rotating shaft seats are fixedly arranged on the valve body, and the valve clacks are matched with each other to seal the material channel; the two sides of the valve clack are provided with rotating shafts connected with the rotating shaft seats, the rotating shaft seats are provided with connecting holes matched with the rotating shafts, and one rotating shaft seat is arranged between every two adjacent valve clacks; the rotary shaft is provided with a limiting rod, a limiting groove for the limiting rod to move is formed in the inner side wall of the connecting hole, and the limiting rod is perpendicular to the rotary shaft.

2. A one-way valve for a diaphragm pump for transporting large particulate material as claimed in claim 1 wherein said valve flaps are isosceles triangles, said valve flaps have four, and four of said valve flaps form a pyramid shape after said valve flaps are attached.

3. A one-way valve for a diaphragm pump for transporting large particulate material according to claim 2, wherein said flap has a rotation angle of 30 ° -70 °.

4. The one-way valve for a diaphragm pump for transporting large-sized materials according to claim 1, wherein the rotating shafts are spherical, the connecting holes are directed to the sphere center of the rotating shaft, two connecting holes are formed on each rotating shaft, and the axes of the two connecting holes are perpendicular.

5. A one-way valve for a diaphragm pump for transporting large particulate material as claimed in claim 1 wherein said material passageway is circular in cross-section.