CN216112174U

CN216112174U - Pneumatic diaphragm valve

Info

Publication number: CN216112174U
Application number: CN202121767264.1U
Authority: CN
Inventors: 谢辉
Original assignee: Dongguan Wocheng Technology Co ltd
Current assignee: Dongguan Wocheng Technology Co ltd
Priority date: 2021-07-31
Filing date: 2021-07-31
Publication date: 2022-03-22
Anticipated expiration: 2031-07-31

Abstract

A pneumatic diaphragm valve relates to the field of diaphragm valve devices. It includes valve body main part, the mouth of pipe that admits air, the mouth of pipe of giving vent to anger, admit air logical groove, give vent to anger and lead to groove, cylinder valve mechanism, gland whole body, seal ejector pin, bellows, sealed pressure pad, the mouth of pipe that admits air sets up on the right side of valve body main part, and the mouth of pipe that gives vent to anger sets up in the left side of valve body main part, and the right side in the middle of the valve body main part is equipped with the logical groove of admitting air, and admits air logical groove and the mouth of pipe of giving vent to anger is linked together, and bolted connection between cylinder valve mechanism and the valve body main part is led to the logical groove of giving vent to anger and is equipped with the logical groove of giving vent to anger in the left side in the middle of the valve body main part. The utility model has the advantages that the device main body is practical and convenient, the arrangement of the cylinder valve mechanism enables the valve body to reduce the friction between internal parts when in use, the service efficiency of the valve body is improved, the service life of the valve body is prolonged, the anti-corrosion capability in the valve body is increased, the sealing function of the valve body is increased, and the device has good practical performance.

Description

Pneumatic diaphragm valve

Technical Field

The utility model relates to the field of diaphragm valve devices, in particular to a pneumatic diaphragm valve.

Background

The diaphragm valve is a stop valve which uses a diaphragm as an opening and closing piece to close a flow passage, cut off fluid and separate an inner cavity of a valve body from an inner cavity of a valve cover. The diaphragm is made of elastic, corrosion-resistant and impermeable materials such as rubber and plastics. The valve body is made of multipurpose plastic, glass fiber reinforced plastic, ceramic or metal lining rubber material. Simple structure, better sealing and corrosion resistance and small fluid resistance. The medium is used for low pressure, low temperature, medium with strong corrosiveness and suspended substance. The structure is divided into a ridge type, a stop type, a gate type and the like. The diaphragm valve is characterized in that a flexible diaphragm or a combined diaphragm is arranged in a valve body and a valve cover, and a closing member of the diaphragm valve is a compression device connected with the diaphragm. The valve seat can be in a weir shape or a pipe wall of a straight-through flow passage. The diaphragm valve has the advantages that the operating mechanism is separated from the medium channel, so that the purity of the working medium is ensured, and the possibility that the medium in the pipeline impacts the working part of the operating mechanism is also prevented. Furthermore, there is no need to employ any form of separate seal at the valve stem, except for use as a safety feature in controlling hazardous media. In the diaphragm valve, since only the diaphragm and the valve body, which are in contact with the working medium, can be made of a plurality of different materials, the valve can ideally control a plurality of working media, and is particularly suitable for media with chemically corrosive or suspended particles, and the device can provide convenience for people in daily use, but still has the following defects:

chinese patent discloses a CN201120512279.3 diaphragm valve, which solves the problem that the slit detention area is easy to generate fluid and cause pollution, but the diaphragm valve is easy to cause abrasion between parts when in use, which affects the service life of the valve body, and meanwhile, the anti-corrosion capability is relatively limited when in use, and the practical performance is relatively limited.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a pneumatic diaphragm valve aiming at the defects and shortcomings in the prior art. The device main part is practical convenient, and the setting up of cylinder valve mechanism 6 makes the valve body can reduce the friction between the internals using, improves the availability factor of valve body, has improved the life of valve body simultaneously, has increased the anticorrosive ability in the valve body, has increased the sealing function of valve body, has good practicality.

In order to achieve the purpose, the utility model adopts the following technical scheme: a pneumatic diaphragm valve comprises a valve body main body 1, an air inlet pipe orifice 2, an air outlet pipe orifice 3, an air inlet through groove 4, an air outlet through groove 5, a cylinder valve mechanism 6, a gland through body 7, a sealing ejector rod 8, a corrugated pipe 9 and a sealing pressure pad 10, wherein the air inlet pipe orifice 2 is arranged on the right side of the valve body main body 1, the air outlet pipe orifice 3 is arranged on the left side of the valve body main body 1, the air inlet through groove 4 is arranged on the right side in the middle of the inside of the valve body main body 1, the air inlet through groove 4 is communicated with the air inlet pipe orifice 2, the air outlet through groove 5 is arranged on the left side in the middle of the inside of the valve body main body 1, the cylinder valve mechanism 6 is connected with the valve body main body 1 through bolts, the upper end of the gland through body 7 is attached to the inner side of the bottom surface of the cylinder valve mechanism 6, the lower end of the gland through body 7 is connected with the upper end of the valve body main body 1, the sealing ejector rod 8 is fixedly connected with the inside of the bottom surface of the valve mechanism 6, the sealing mandril 8 penetrates through the upper surface of the gland whole body 7, the sealing mandril 8 is positioned at the inner side of the air outlet through groove 5, the corrugated pipe 9 is sleeved on the sealing mandril 8, the upper end of the corrugated pipe 9 is connected with the lower end of the gland whole body 7, the lower end of the sealing mandril 8 is provided with a sealing pressure pad 10, the bottom surface of the sealing pressure pad 10 is attached to the upper end of the air inlet through groove 4, the cylinder valve mechanism 6 comprises a cylinder air inlet 61, a cylinder cover 62, a piston member 63, a reset spring 64 and a connecting valve port 65, the cylinder air inlet 61 is arranged at the upper end of the cylinder cover 62, the cylinder cover 62 is in screw connection with the connecting valve port 65, the lower end of the connecting valve port 65 is in screw connection with the upper end of the valve body 1, the upper end of the piston member 63 is connected with the middle of the inner upper end of the cylinder cover 62, the lower end of the piston member 63 is attached to the connecting valve port 65, the bottom surface of the piston member 63 is connected with the upper end of the sealing mandril 8, the upper end of the reset spring 64 is connected with the middle of the inner upper end of the cylinder cover 62, and the lower end of the return spring 64 is connected to the lower end of the piston member 63.

Further, valve body mounting holes 101 are formed in the bottom surface of the valve body main body 1, the number of the valve body mounting holes 101 is two or more, and the valve body mounting holes 101 are formed in the left side and the right side of the bottom surface of the valve body main body 1.

Further, the cylinder head 62 is provided with two cylinder mounting holes 621 on the upper surface thereof, and the cylinder mounting holes 621 are provided on the left and right sides of the upper surface of the cylinder head 62.

Further, an air guide groove 631 is formed inside the piston member 63.

Further, a sealing ring 71 is arranged at the joint of the gland whole body 7 and the valve body main body 1.

Further, the corrugated pipe 9 is an alloy stainless steel corrugated pipe.

The working principle of the utility model is as follows: when the valve body main body 1 is used, the air inlet 61 of the air cylinder enters the air cylinder cover 62, the air enters the air cylinder cover 62 and flows out through the air guide groove 631 in the piston part 63, the piston part 63 is lifted upwards through the pneumatic principle, the return spring 64 is also compressed upwards, the piston part 63 drives the sealing ejector rod 8 to be lifted while being lifted, the sealing pressure pad 10 leaves the air inlet through groove 4, the air inlet through groove 4 and the air outlet through groove 5 are communicated with each other, at the moment, the air inlet of the air inlet pipe orifice 2 is transmitted to the air outlet through groove 5 through the air inlet through groove 4 and then is transmitted out from the air outlet pipe orifice 3, the air inlet 61 of the air cylinder stops air inlet after the use of the valve body main body 1 is finished, the return spring 64 is reset downwards to press the piston part 63 downwards to be connected with the connecting valve port 65, and the sealing ejector rod 8 returns to the original position to seal the upper port of the sealing pressure pad 10 to seal and seal the upper port of the air inlet through groove 4, so that the air in the inner side of the valve body 1 does not flow any more, simultaneously bellows 9 adopts alloy and stainless steel bellows, can adapt to various gases, and corrosion resisting property is strong, and the performance is more stable, and whole valve body has adopted high temperature resistant material, can effectually resist the heat degree that the valve body produced at work, thereby guarantee the life of valve body, all set up valve body mounting hole 101 and cylinder mounting hole 621 in 1 bottom surface of valve body main part and 62 upper surfaces of cylinder cap, can effectually avoid the damage on valve body surface in the installation, improved the aesthetic property of outward appearance.

After the technical scheme is adopted, the utility model has the beneficial effects that: the device main part is practical convenient, and the setting up of cylinder valve mechanism 6 makes the valve body can reduce the friction between the internals using, improves the availability factor of valve body, has improved the life of valve body simultaneously, has increased the anticorrosive ability in the valve body, has increased the sealing function of valve body, has good practicality.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a schematic cross-sectional structure of the present invention.

Description of reference numerals: the valve body comprises a valve body main body 1, an air inlet pipe orifice 2, an air outlet pipe orifice 3, an air inlet through groove 4, an air outlet through groove 5, a cylinder valve mechanism 6, a gland through body 7, a sealing ejector rod 8, a corrugated pipe 9, a sealing pressure pad 10, a valve body mounting hole 101, a cylinder air inlet 61, a cylinder cover 62, a piston piece 63, a return spring 64, a connecting valve port 65, a cylinder mounting hole 621 and an air guide groove 631.

Detailed Description

Referring to fig. 1 to 2, the technical solution adopted by the present embodiment is: the sealing valve comprises a valve body main body 1, an air inlet pipe orifice 2, an air outlet pipe orifice 3, an air inlet through groove 4, an air outlet through groove 5, a cylinder valve mechanism 6, a gland whole body 7, a sealing ejector rod 8, a corrugated pipe 9 and a sealing pressure pad 10, wherein the air inlet pipe orifice 2 is arranged on the right side of the valve body main body 1, the air outlet pipe orifice 3 is arranged on the left side of the valve body main body 1, the air inlet through groove 4 is arranged on the right side in the middle of the inside of the valve body main body 1, the air inlet through groove 4 is communicated with the air inlet pipe orifice 2, the air outlet through groove 5 is arranged on the left side in the middle of the inside of the valve body main body 1, the air outlet through groove 5 is communicated with the air outlet pipe orifice 3, the cylinder valve mechanism 6 is connected with the valve body main body 1 through bolts, the upper end of the gland whole body 7 is attached to the inner side of the bottom surface of the cylinder valve mechanism 6, the lower end of the gland whole body 7 is connected with the upper end of the valve body main body 1, the sealing ejector rod 8 is fixedly connected with the inside of the bottom surface of the cylinder valve mechanism 6, and the sealing ejector rod 8 penetrates through the upper surface of the gland whole body 7, the sealing ejector rod 8 is positioned at the inner side of the air outlet through groove 5, the corrugated pipe 9 is sleeved on the sealing ejector rod 8, the upper end of the corrugated pipe 9 is connected with the lower end of the gland whole body 7, the lower end of the sealing ejector rod 8 is provided with a sealing pressure pad 10, the bottom surface of the sealing pressure pad 10 is attached to the upper end of the air inlet through groove 4, the cylinder valve mechanism 6 comprises a cylinder air inlet 61, a cylinder cover 62, a piston member 63, a reset spring 64 and a connecting valve port 65, the cylinder air inlet 61 is arranged at the upper end of the cylinder cover 62, the cylinder cover 62 is spirally connected with the connecting valve port 65, the lower end of the connecting valve port 65 is spirally connected with the upper end of the valve body 1, the upper end of the piston member 63 is connected with the middle of the inner upper end of the cylinder cover 62, the lower end of the piston member 63 is connected with the connecting valve port 65, the bottom surface of the piston member 63 is connected with the upper end of the sealing ejector rod 8, the upper end of the reset spring 64 is connected with the middle of the inner upper end of the cylinder cover 62, and the lower end of the return spring 64 is connected to the lower end of the piston member 63.

The bottom surface of the valve body main body 1 is provided with valve body mounting holes 101, the number of the valve body mounting holes 101 is two or more, and the valve body mounting holes 101 are arranged on the left side and the right side of the bottom surface of the valve body main body 1. The upper surface of the cylinder head 62 is provided with two cylinder mounting holes 621, and the cylinder mounting holes 621 are arranged on the left and right sides of the upper surface of the cylinder head 62. The piston part 63 is provided with a gas guide groove 631 on the inner side, a sealing ring 71 is arranged at the joint of the gland whole body 7 and the valve body main body 1, and the corrugated pipe 9 is an alloy stainless steel corrugated pipe.

The above description is only for the purpose of illustrating the technical solutions of the present invention and not for the purpose of limiting the same, and other modifications or equivalent substitutions made by those skilled in the art to the technical solutions of the present invention should be covered within the scope of the claims of the present invention without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. A pneumatic diaphragm valve, characterized by: the air cylinder valve comprises a valve body main body (1), an air inlet pipe orifice (2), an air outlet pipe orifice (3), an air inlet through groove (4), an air outlet through groove (5), an air cylinder valve mechanism (6), a gland through body (7), a sealing ejector rod (8), a corrugated pipe (9) and a sealing pressure pad (10), wherein the air inlet pipe orifice (2) is arranged on the right side of the valve body main body (1), the air outlet pipe orifice (3) is arranged on the left side of the valve body main body (1), the air inlet through groove (4) is arranged on the right side in the middle of the interior of the valve body main body (1), the air inlet through groove (4) is communicated with the air inlet pipe orifice (2), the air outlet through groove (5) is arranged on the left side in the middle of the interior of the valve body main body (1), the air outlet through groove (5) is communicated with the air outlet pipe orifice (3), the air cylinder valve mechanism (6) is connected with the valve body (1) through bolts, the upper end of the gland through body (7) is attached to the inner side of the bottom surface of the air cylinder valve mechanism (6), the lower end of the gland through body (7) is connected with the upper end of the valve body main body (1), the sealing ejector rod (8) is fixedly connected with the inner part of the bottom surface of the cylinder valve mechanism (6), the sealing ejector rod (8) penetrates through the upper surface of the gland through body (7), the sealing ejector rod (8) is positioned on the inner side of the air outlet through groove (5), the corrugated pipe (9) is sleeved on the sealing ejector rod (8), the upper end of the corrugated pipe (9) is connected with the lower end of the gland through body (7), the lower end of the sealing ejector rod (8) is provided with a sealing pressure pad (10), the bottom surface of the sealing pressure pad (10) is attached to the upper end of the air inlet through groove (4), the cylinder valve mechanism (6) comprises a cylinder air inlet (61), a cylinder cover (62), a piston piece (63), a reset spring (64) and a connecting valve port (65), the cylinder air inlet (61) is arranged at the upper end of the cylinder cover (62), and the valve port connecting valve port (65) are in spiral connection, the lower end of the connecting valve port (65) is spirally connected with the upper end of the valve body main body (1), the upper end of the piston piece (63) is connected with the middle of the inner upper end of the cylinder cover (62), the lower end of the piston piece (63) is jointed with the connecting valve port (65), the bottom surface of the piston piece (63) is connected with the upper end of the sealing ejector rod (8), the upper end of the reset spring (64) is connected with the middle of the inner upper end of the cylinder cover (62), and the lower end of the reset spring (64) is connected with the lower end of the piston piece (63).

2. A pneumatic diaphragm valve according to claim 1, wherein: the bottom surface of the valve body main body (1) is provided with valve body mounting holes (101), the number of the valve body mounting holes (101) is at least two, and the valve body mounting holes (101) are arranged on the left side and the right side of the bottom surface of the valve body main body (1).

3. A pneumatic diaphragm valve according to claim 1, wherein: the cylinder cover (62) upper surface is equipped with cylinder mounting hole (621), and the quantity of cylinder mounting hole (621) is two, and cylinder mounting hole (621) set up the left and right sides at cylinder cover (62) upper surface.

4. A pneumatic diaphragm valve according to claim 1, wherein: an air guide groove (631) is formed in the inner side of the piston piece (63).

5. A pneumatic diaphragm valve according to claim 1, wherein: and a sealing ring (71) is arranged at the joint of the gland whole body (7) and the valve body main body (1).

6. A pneumatic diaphragm valve according to claim 1, wherein: the corrugated pipe (9) is an alloy stainless steel corrugated pipe.