CN211779135U

CN211779135U - Novel four-way valve

Info

Publication number: CN211779135U
Application number: CN201922415074.2U
Authority: CN
Inventors: 李留爱
Original assignee: Gucheng County Yugong Pump Valve Co ltd
Current assignee: Gucheng County Yugong Pump Valve Co ltd
Priority date: 2019-12-29
Filing date: 2019-12-29
Publication date: 2020-10-27
Anticipated expiration: 2029-12-29

Abstract

The utility model discloses a novel four-way valve, it is through setting up the fixed slot on the case, sets up the fixed orifices simultaneously and realizes the fixed to the spring on the case, can realize the extrusion to the inside sealing member of fixed slot after the spring is fixed, retrains the sealing member and removes towards the cavity inner wall all the time to this realization is sealed, through this kind of design, even sealing member surface aging, the spring also can apply force in sealing member and extrusion sealing member all the time with the contact of cavity inner wall, realize sealedly.

Description

Novel four-way valve

Technical Field

The utility model belongs to the technical field of the air current conversion part, concretely relates to novel four-way valve.

Background

In a sewage suction truck system, a vacuum pump is generally used for realizing the functions of sewage suction and air exhaust. The switching function of the air suction and the air exhaust in the system is mainly completed by a four-way valve.

The four-way valve on the market at present has poor sealing performance, low air suction and exhaust efficiency and short service life. Some manufacturers have developed a four-way valve similar to the valve with patent No. 201220004985.1, which is specially used for air suction, air discharge and rotation, and the efficiency of the valve in air suction and air discharge is greatly improved compared with the existing product, but in the actual use process of the product, the inner sealing rubber pad of the product is easy to age and damage under the condition of long-time abrasion, and then air leakage is caused.

In view of the actual demand of the four-way valve after such improvement, as technical personnel in the industry, how to design a four-way valve capable of preventing the rubber mat from aging and loosening and preventing leakage through technical improvement is a technical problem to be solved urgently in the industry at present.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides a novel four-way valve, the structural design is novel, and the locking and the leakage prevention of a sealing device can be realized through mechanical design.

In order to achieve the technical purpose, the utility model adopts the following scheme: a novel four-way valve comprises a valve top cover, wherein a through hole is formed in the valve top cover to realize penetration of a driving shaft, a valve body is arranged below the valve top cover, fixing seats are arranged on the front, back, left and right sides, the top surface and the bottom surface of the valve body and are used for being connected with external equipment, a cavity is arranged in the center of the valve body, a valve core vertically penetrates through the cavity, and the driving shaft on the top of the valve core penetrates through the valve top cover and is fixedly connected with an external driving rod;

the valve core is designed in an I shape and comprises a top cover and a bottom cover, a connecting block is arranged between the top cover and the bottom cover, fixing grooves are formed in the front side and the rear side of the connecting block, sealing elements are arranged in the fixing grooves, fixing holes are formed in the connecting block and are arranged towards the fixing grooves, springs are arranged in the fixing holes, the sealing elements in the fixing grooves are extruded through the springs, the sealing elements are extruded towards the inner wall of the cavity all the time, and therefore sealing is achieved.

The valve is characterized in that flow guide cavities are respectively arranged in the valve body in front, back, left and right directions, and flow guide of media in the valve body is realized through the flow guide of the flow guide cavities under the action of the valve core.

The utility model has the advantages that: the utility model discloses an above structure setting, it is through setting up the fixed slot on the case, sets up the fixed orifices simultaneously and realizes the fixed to the spring on the case, can realize the extrusion to fixed slot internal seal spare after the spring is fixed, and the restraint sealing member removes towards the cavity inner wall all the time to this realization is sealed, through this kind of design, even sealing member surface aging, the spring also can exert a force in sealing member and extrusion sealing member all the time with the contact of cavity inner wall, the realization is sealed.

To sum up, the utility model discloses structural design is novel, simple, and it is through the in-service use test, and the antiseep effect is obvious, is the novel four-way valve of an ideal.

Drawings

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

fig. 2 is a schematic view of the bottom view structure of the present invention;

FIG. 3 is a schematic view of the internal flow guiding principle of the present invention;

FIG. 4 is a schematic view of the three-dimensional structure of the valve core of the present invention;

FIG. 5 is a schematic diagram II of the three-dimensional structure of the valve core of the present invention;

FIG. 6 is a schematic view of the working principle of the sealing member of the present invention;

in the attached drawings, the valve comprises a valve top cover 1, a valve top cover 2, an external driving rod 21, a fixing sleeve 3, a valve body 31, a fixing seat 4, a valve core 41, a driving shaft 42, a bottom cover 43, a top cover 44, a connecting block 45, a fixing groove 46, a switch cavity 47, a fixing hole 48, a spring 5, a flow guide cavity 6, a sealing piece 7 and a valve core fixing seat.

Detailed Description

Referring to the drawings, as shown in fig. 1, a novel four-way valve comprises a valve top cover 1, a through hole is arranged on the valve top cover 1 to realize the penetration of a driving shaft 41, a valve body 3 is arranged below the valve top cover 1, fixing seats 31 are arranged on the front, the back, the left and the right, the top and the bottom of the valve body 3 for connecting with external equipment, the center of the valve body 3 is provided with a cavity, a valve core 4 vertically penetrates through the cavity, a driving shaft 41 at the top of the valve core 4 penetrates through a valve top cover 43 and is fixedly connected with an external driving rod 2, the valve core 4 can be rotated by the driving of the external driving rod 2 to realize on-off control, the switching principle is shown in figure 3, the valve body 3 is internally provided with flow guide cavities 5 respectively at the front, the back, the left and the right, the medium is guided to the left and the right through the valve core 4 in the valve body 3 by the guide of the guide cavity 5.

The valve core 4 is designed in an I shape and comprises a top cover 43 and a bottom cover 42, a connecting block 44 is arranged between the top cover 43 and the bottom cover 42, fixing grooves 45 are formed in the front side and the rear side of the connecting block 44, a sealing element 6 is arranged in each fixing groove 45, a fixing hole 47 is arranged in the connecting block 44, each fixing hole 47 penetrates through the two fixing grooves 45 arranged in the front and the rear sides, or when the fixing holes do not penetrate through the fixing grooves, the fixing holes 47 are arranged towards the fixing grooves 45, springs 48 are arranged in the fixing holes 47, the sealing elements 6 in the fixing grooves 45 are extruded through the springs 48, and the sealing elements 6 are extruded towards the inner wall of the cavity 5.

The utility model discloses an above structure setting, it is through setting up fixed slot 45 on case 4, set up fixed orifices 47 simultaneously on case 4 and realize the fixed to spring 48, can realize the extrusion to fixed slot 45 internal seal spare 6 after spring 48 is fixed, retrains sealing member 6 and removes towards the cavity inner wall all the time to this realizes sealedly, through this kind of design, even sealing member surface ageing, the spring also can apply force in sealing member and extrusion sealing member all the time with the contact of cavity inner wall, realize sealedly.

Claims

1. A novel four-way valve comprises a valve top cover, wherein a through hole is formed in the valve top cover to realize penetration of a driving shaft, a valve body is arranged below the valve top cover, fixing seats are arranged on the front, back, left and right sides, the top surface and the bottom surface of the valve body and are used for being connected with external equipment, a cavity is arranged in the center of the valve body, a valve core vertically penetrates through the cavity, and the driving shaft on the top of the valve core penetrates through the valve top cover and is fixedly connected with an external driving rod;

the method is characterized in that: the valve core is designed in an I shape and comprises a top cover and a bottom cover, a connecting block is arranged between the top cover and the bottom cover, fixing grooves are formed in the front side and the rear side of the connecting block, sealing elements are arranged in the fixing grooves, fixing holes are formed in the connecting block and are arranged towards the fixing grooves, springs are arranged in the fixing holes, the sealing elements in the fixing grooves are extruded through the springs, the sealing elements are extruded towards the inner wall of the cavity all the time, and therefore sealing is achieved.

2. The novel four-way valve of claim 1, wherein: the valve is characterized in that flow guide cavities are respectively arranged in the valve body in front, back, left and right directions, and flow guide of media in the valve body is realized through the flow guide of the flow guide cavities under the action of the valve core.