CN215172452U - Reversing valve body connecting structure - Google Patents

Abstract

The utility model relates to a valve body especially relates to a switching-over valve body connection structure. This practicality changes original structure of screwing up, realizes the installation of case seat through strikeing the case. Switching-over valve body connection structure include: the valve body is barrel-shaped; a liquid discharge end mounting hole arranged on the side wall of the valve body; a liquid inlet end mounting hole arranged at the bottom of the valve body is formed; the valve core seat is in interference fit with the liquid inlet end mounting hole, and a through hole is formed in the middle of the valve core seat; and a valve core connected to one side of the valve core seat; the valve core comprises a plug part which is covered on one side of the valve core seat; the guide part is hermetically connected with the inner wall of the valve body; the guide part is fixed on one side of the blocking head part.

Description

Reversing valve body connecting structure

Technical Field

The utility model relates to a valve body especially relates to a switching-over valve body connection structure.

Background

Conventionally, when a valve core seat is installed in an installation hole in a reversing valve, the valve core seat and a copper valve core are generally placed in the reversing valve, then a screwing wire of a special tool is screwed with a screwing wire on the inner wall of the reversing valve, and the valve core seat is jacked into the installation hole in the reversing valve by using the screwing force of the screwing wire and the copper valve core.

The installation mode requires high wire twisting processing precision and is difficult to operate by a single person; in addition, the copper valve core is easy to be extruded and deformed in the extrusion process, and the sealing performance between the copper valve core and the valve core seat is easy to be damaged.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model lies in overcoming above-mentioned defect, provides a switching-over valve body connection structure, changes original structure of screwing up, realizes the installation of case seat through strikeing the case.

Switching-over valve body connection structure include: the valve body is barrel-shaped; a liquid discharge end mounting hole arranged on the side wall of the valve body; a liquid inlet end mounting hole arranged at the bottom of the valve body is formed; the valve core seat is in interference fit with the liquid inlet end mounting hole, and a through hole is formed in the middle of the valve core seat; and a valve core connected to one side of the valve core seat; the valve core comprises a plug part which is covered on one side of the valve core seat; the guide part is hermetically connected with the inner wall of the valve body; the guide part is fixed on one side of the blocking head part.

When the plug part is covered on the valve core seat, liquid can not enter the valve body through the through hole on the valve core seat to form a closed valve.

Preferably, a cylindrical knocking part is fixed on one side of the guide part.

The plug part, the guide part and the cylindrical knocking part can be integrally cast and formed, during installation, the valve core seat is placed at the position of a liquid inlet end mounting hole in the valve body, then a wooden hammer is used for knocking the end part of the cylindrical knocking part, and the plug part is used for ejecting the valve core seat into the liquid inlet end mounting hole of the valve body.

Preferably, a plurality of liquid discharge end mounting holes are uniformly distributed around the periphery of the valve body.

The drainage end mounting hole can be connected with a drainage pipeline and also can be connected with detection instruments such as a pressure gauge and the like.

Preferably, the guide part is hermetically connected with the inner wall of the valve body through a sealing ring.

When the valve core is far away from the valve core seat, liquid enters the valve body through the through hole on the valve core seat and is discharged through the liquid discharge end mounting hole, and the sealing ring can prevent the liquid from leaking from a gap between the valve core and the valve body.

The utility model has the advantages that: the original screwing structure is changed, and the valve core seat can be installed by utilizing the knocking valve core through the valve core. This switching-over valve body connection structure, simple structure, convenient to use can one-man operation, in addition, whole stifled head and valve core case contact when the valve closes, and the leakproofness can be better.

Drawings

FIG. 1 is a schematic view of a valve body construction;

FIG. 2 is a schematic view of the half-section of FIG. 1;

FIG. 3 is a schematic view of a cartridge configuration;

FIG. 4 is a schematic view of a half-section of the valve cartridge;

FIG. 5 is a schematic view of a valve cartridge seat configuration;

FIG. 6 is a schematic view of an exemplary connection structure;

FIG. 7 is a schematic structural diagram of an operating state of an embodiment;

in the figure: 1. a valve body; 2. a drainage end mounting hole; 3. a liquid inlet end mounting hole; 4. a valve core seat; 5. through the hole; 6. a valve core; 7. plugging the head part; 8. a guide portion; 9. a cylindrical knocking portion; 10. and (4) a sealing ring.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

As shown in fig. 1-7, the connection structure of the reversing valve body of the present invention comprises: the valve body 1 is barrel-shaped; a liquid discharge end mounting hole 2 arranged on the side wall of the valve body 1 is opened; a liquid inlet end mounting hole 3 arranged at the bottom of the valve body 1 is formed; the valve core seat 4 is in interference fit with the liquid inlet end mounting hole 3, and a through hole 5 is formed in the middle of the valve core seat; and a valve core 6 connected to one side of the valve core seat 4; the valve core 6 comprises a plug part 7 which is covered on one side of the valve core seat 4; and a guide part 8 hermetically connected with the inner wall of the valve body 1; the guide part 8 is fixed on one side of the blocking head part 7. The cylindrical knocking part 9 is fixed on one side of the guide part 8. The liquid discharge end mounting holes 2 are uniformly distributed around the valve body 1. The guide part 8 is hermetically connected with the inner wall of the valve body 1 through a sealing ring 10.

In this embodiment, flowing back end mounting hole 2 evenly arranges four around valve body 1 for detecting instrument such as connecting drainage pipeline and manometer, stifled head portion, guide part and cylindricality portion of knocking integrated casting shaping, guide part 8 through sealing ring 10 with 1 inner wall sealing connection of valve body. When the plug part 7 is covered on the valve core seat 4, liquid can not enter the valve body 1 through the through hole 5 on the valve core seat 4, and a closed valve is formed. When the plug part 7 is far away from the valve core seat 4, liquid enters the valve body 1 through the through hole 5 on the valve core seat 4 and is discharged through the liquid discharge end mounting hole 2, and the sealing ring 10 can prevent the liquid from leaking out from the gap between the valve core 6 and the valve body 1.

During installation, the valve core seat 4 is firstly placed in the liquid inlet end installation hole 3 in the valve body 1, then a wooden hammer is used for knocking the end part of the cylindrical knocking part 9, and the valve core seat 4 is jacked into the liquid inlet end installation hole 3 of the valve body 1 by the aid of the plugging part 7.

Of course, the above description is only a preferred embodiment of the present invention, and should not be taken as limiting the scope of the embodiments of the present invention. The present invention is not limited to the above examples, and the technical field of the present invention is equivalent to the changes and improvements made in the actual range of the present invention, which should be attributed to the patent coverage of the present invention.

Claims (4)

1. A kind of change-over valve body linkage, characterized by comprising:

the valve body (1) is barrel-shaped;

a liquid discharge end mounting hole (2) arranged on the side wall of the valve body (1);

a liquid inlet end mounting hole (3) arranged at the bottom of the valve body (1);

the valve core seat (4) is in interference fit with the liquid inlet end mounting hole (3), and a through hole (5) is formed in the middle of the valve core seat;

and a valve core (6) connected to one side of the valve core seat (4);

the valve core (6) comprises a valve core,

a plug part (7) which covers one side of the valve core seat (4);

and a guide part (8) hermetically connected with the inner wall of the valve body (1);

the guide part (8) is fixed on one side of the blocking head part (7).

2. The reversing valve body connecting structure according to claim 1, wherein: and a cylindrical knocking part (9) is fixed on one side of the guide part (8).

3. The reversing valve body connecting structure according to claim 1, wherein: the liquid discharge end mounting holes (2) are uniformly distributed around the valve body (1).

4. The reversing valve body connecting structure according to claim 1, wherein: the guide part (8) is hermetically connected with the inner wall of the valve body (1) through a sealing ring (10).

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