CN210372129U

CN210372129U - Pneumatic control reversing valve

Info

Publication number: CN210372129U
Application number: CN201921477385.5U
Authority: CN
Inventors: 李世友
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-09-06
Filing date: 2019-09-06
Publication date: 2020-04-21
Anticipated expiration: 2029-09-06

Abstract

The utility model relates to a gas accuse switching-over valve. The valve comprises a valve body, the case, be provided with the mounting groove on the valve body both sides terminal surface respectively and install the gland of lock on the mounting groove through the bolt, form the air chamber between gland and the valve body, be provided with the inlet port on the gland, the valve core is arranged in the centre bore of valve body, the sealed diaphragm of arranging in the mounting groove is installed through lock nut respectively at the case both ends, the tank bottom surface of mounting groove is hugged closely under the effect that corresponds the gland to the sealed diaphragm, a both ends for sealed centre bore, still be provided with the feed liquor hole with the centre bore intercommunication in the valve body respectively, go out liquid hole A, go out liquid hole B, be provided with annular slot A and annular slot B on the tank bottom surface of the mounting groove on the valve body both sides terminal surface respectively, be provided with the intercommunicating pore. The utility model discloses can avoid taking place blocking phenomenon, the interior hourglass phenomenon that prevents to appear, simple structure has improved life.

Description

Pneumatic control reversing valve

Technical Field

The utility model relates to the technical field of valves, especially be applied to a gas accuse switching-over valve in the high pressure forming equipment among the ceramic manufacture.

Background

The existing pneumatic control reversing valve applied to high-pressure forming equipment in the ceramic production process is complex in structure, the phenomena of flow reduction, blockage, internal leakage and the like often occur in the using process, the service life is short, the failure rate and the replacement rate are high, the maintenance cost is improved, the enterprise production is influenced, and the production efficiency is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the above problems, thereby providing a gas accuse switching-over valve simple structure, the practicality is strong, long service life.

The utility model provides a problem, the technical scheme who adopts is:

the utility model provides a gas accuse switching-over valve, which comprises a valve body, the case, be provided with the mounting groove on the valve body both sides terminal surface respectively and install the gland of lock on the mounting groove through the bolt, form the air chamber between gland and the valve body, be provided with the inlet port on the gland, the valve core is arranged in the centre bore of valve body, the case both ends are installed the sealing diaphragm who arranges in the mounting groove through locknut respectively, the tank bottom surface of mounting groove is hugged closely under the effect that corresponds the gland to the sealing diaphragm, a both ends for sealed centre bore, still be provided with the feed liquor hole with the centre bore intercommunication in the valve body respectively, liquid outlet A, liquid outlet B, be provided with annular slot A and annular slot B on the tank bottom surface of the mounting groove on the valve body both sides terminal surface respectively, be provided with the intercommunicating pore.

Adopt above-mentioned technical scheme the utility model discloses, compare with prior art, its outstanding characteristics are:

through set up annular slot on the binding face at valve body and sealed diaphragm and through intercommunicating pore and the play liquid hole intercommunication that corresponds, increase the volume of working chamber, make it increase in the work and inhale into vacuum pressure, avoid the valve to take place blocking phenomenon in the use, the case both ends are through the fixed sealed diaphragm of lock nut, the interior hourglass phenomenon that probably appears in the use has been solved, moreover, the steam generator is simple in structure, therefore, the clothes hanger is strong in practicability, the service life is prolonged, the maintenance and the replacement rate are reduced, the production efficiency is improved, and the production cost is reduced.

Preferably, the present invention further provides:

be provided with on the tank bottom surface of mounting groove with the annular boss complex annular groove of sealed diaphragm for the more firm laminating of sealed diaphragm has improved the leakproofness on the tank bottom surface of valve body both sides mounting groove.

The bottom surfaces of the annular groove A and the annular groove B are both inclined surfaces.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic view of the cross-sectional structure A-A of FIG. 1;

FIG. 3 is a schematic view of a portion of the enlarged structure of A in FIG. 2;

FIG. 4 is a schematic view of the cross-sectional structure B-B in FIG. 1;

fig. 5 is a schematic sectional structure view of a valve body according to an embodiment of the present invention;

FIG. 6 is a side view schematic of the structure of FIG. 5;

in the figure: a valve body 1; a gland 2; an air inlet 3; a bolt 4; a nut 5; a pressing plate 6; a communication hole A7; liquid outlet A8; a central bore 9; a valve core 10; a liquid inlet hole 11; a sealing membrane 12; a gasket 13; a locknut 14; an air chamber 15; an annular groove a 16; a mounting groove 17; an annular groove 18; a communication hole B19; liquid outlet B20; an annular groove B21.

The specific implementation mode is as follows:

the invention will be further described with reference to the following examples, which are intended only for better understanding of the invention and therefore do not limit the scope of the invention.

Referring to fig. 1, 2, 3, 4, 5 and 6, a pneumatic control reversing valve comprises a valve body 1 and a valve core 10, wherein the end surfaces of two sides of the valve body 1 are respectively provided with an installation groove 17, and a gland 2 buckled on the installation groove 17 is installed through a bolt 4, a nut 5 and a pressure plate 6, an air chamber 15 is formed between the gland 2 and the valve body 1, the gland 2 is provided with an air inlet 3, the valve core 10 is arranged in a central hole 9 of the valve body 1, two ends of the valve core 10 are respectively provided with a sealing membrane 12 arranged in the installation groove 17 through a locknut 14 and a gasket 13, the sealing membrane 12 is tightly attached to the bottom surface of the installation groove 17 under the action of the corresponding gland 2 and is used for sealing two ends of the central hole 9, the valve body 1 is also respectively provided with a liquid inlet hole 11, a liquid outlet hole a8 and a liquid outlet hole B20 communicated with the central hole 9, the bottom surfaces of the installation grooves 17 on, the annular groove A16 and the annular groove B21 are respectively provided with a communication hole A7 communicated with the liquid outlet hole A8 and a communication hole B19 communicated with the liquid outlet hole B20.

Be provided with on the tank bottom surface of mounting groove 17 with the annular boss complex annular groove 18 of sealed diaphragm 12 for sealed diaphragm 12 firm laminating has improved the leakproofness on the tank bottom surface of mounting groove 17 of valve body 1 both sides more.

The groove bottom surfaces of the annular groove a16 and the annular groove B21 are both inclined surfaces.

When the gas control valve is used, gas is injected into the gas chamber 15 through the gas inlet holes 3 of the press covers 2 on the two sides of the valve body 1 to control the valve core 10 to move in the central hole 9 of the valve body 1, when gas is injected into the gas chamber 15 where the annular groove A16 on one side of the valve body 1 is located, the valve core 10 moves towards the right side to jack up the sealing diaphragm 12 on the right side of the valve body 1, the sealing diaphragm 12 bulges outwards, fluid injected into the liquid inlet hole 3 enters a working cavity formed between the bulged sealing diaphragm 12 and the corresponding annular groove B21 through the central hole 9, then enters the liquid outlet hole B20 through the communicating hole B19 on the annular groove B21 and finally flows out from the liquid outlet hole B20; when the direction needs to be switched, the air supply to the air chamber 15 in which the annular groove A16 is located is stopped, the air supply to the air chamber 15 in which the annular groove B21 is located is changed, so that the valve core 10 moves towards the left side, the sealing membrane 12 on the left side of the valve body 1 is jacked up, and similarly, the fluid flows out through the central hole 9, the working cavity formed between the sealing membrane 12 and the annular groove A16, the communication hole A7 and the liquid outlet hole A8 in sequence.

The utility model discloses a set up annular slot and through intercommunicating pore and the play liquid hole intercommunication that corresponds on the binding face of valve body 1 and sealed diaphragm 12, increase the volume of working chamber, make it increase in the work and inhale into vacuum pressure, avoid the valve to take place blocking phenomenon in the use, 14 fixed seal diaphragm 12 of lock nut are passed through at 10 both ends of case, the interior hourglass phenomenon that probably appears in the use has been solved, moreover, the steam generator is simple in structure, therefore, the clothes hanger is strong in practicability, the service life is prolonged, the maintenance and the replacement rate are reduced, the production efficiency is improved, and the production cost is reduced.

The above description is only a preferred and practical embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent variations made by using the contents of the specification and the drawings are included in the scope of the present invention.

Claims

1. The utility model provides a gas accuse switching-over valve, includes valve body, case, its characterized in that: the valve body is characterized in that mounting grooves are respectively formed in the end faces of two sides of the valve body, glands buckled on the mounting grooves are mounted through bolts, an air chamber is formed between the glands and the valve body, air inlets are formed in the glands, a valve core is arranged in a central hole of the valve body, sealing diaphragms arranged in the mounting grooves are mounted at two ends of the valve core through check nuts respectively, the sealing diaphragms cling to the bottom surfaces of the mounting grooves under the action of corresponding glands, the two ends of the central hole are sealed, a liquid inlet hole communicated with the central hole is formed in the valve body respectively, a liquid outlet hole A and a liquid outlet hole B are formed in the bottom surfaces of the mounting grooves in the end faces of two sides of the valve body respectively, annular grooves A and annular grooves B are formed in the annular grooves A and the annular.

2. The pneumatically controlled reversing valve of claim 1, wherein: and an annular groove matched with the annular boss of the sealing diaphragm is arranged on the bottom surface of the mounting groove.

3. The pneumatically controlled reversing valve of claim 1, wherein: the bottom surfaces of the annular groove A and the annular groove B are both inclined surfaces.