CN213839722U

CN213839722U - Modular gas self-closing valve

Info

Publication number: CN213839722U
Application number: CN202022865602.7U
Authority: CN
Inventors: 梁美珠
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-12-03
Filing date: 2020-12-03
Publication date: 2021-07-30
Anticipated expiration: 2030-12-03

Abstract

The utility model provides a modular gas self-closing valve, including the epitheca, the subassembly pulls upward, the superpressure under-voltage adjusting part, rated flow current-limiting subassembly, diaphragm seal subassembly and intake pipe, outlet duct and inferior valve, inferior valve and intake pipe and outlet duct integrated into one piece, can reduction in production cost, and the superpressure under-voltage adjusting part, rated flow current-limiting subassembly and diaphragm seal subassembly can be installed inside the valve body after the outside equipment of valve body is accomplished, can reduce the degree of difficulty of assembly, improve assembly efficiency, if one of them subassembly takes place to damage, can directly replace whole subassembly, reduce user's use cost, and when pressure of giving vent to anger too big, can the automatically regulated air input, if pressure of admitting air constantly increases, can cut off and admit air, prevent that the gas from leaking, realize rated flow and close the gas in the setting value.

Description

Modular gas self-closing valve

Technical Field

The utility model relates to the technical field of valves, in particular to modular gas self-closing valve.

Background

The self-closing valve is a device which is arranged on a low-pressure gas system pipeline, does not need electricity or other external power when the gas supply pressure of the pipeline is under-pressure or overpressure, can be automatically closed and needs to be manually opened, the existing self-closing valve basically assembles each part one by one after production is completed, non-professionals generally have difficulty in replacing internal parts after assembly is completed, when the internal parts are damaged, a general user can directly replace the whole self-closing valve, the use cost of the user is improved, and meanwhile, the assembly difficulty is high when the self-closing valve is assembled due to more internal parts.

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model provides a modular gas self-closing valve, a plurality of modules can be in the valve body of packing into respectively after the outside equipment of valve body is accomplished, reduce the assembly degree of difficulty, when one of them module takes place to damage, can change this module simultaneously, reduce user's use cost.

The technical scheme of the utility model is realized like this:

a modular gas self-closing valve comprises an upper shell, a pull-up assembly, an overpressure and underpressure adjusting assembly, a rated flow limiting assembly, a diaphragm closing assembly, an integrally formed gas inlet pipe, a gas outlet pipe and a lower shell, wherein the upper shell and the lower shell are detachably connected, the diaphragm closing assembly comprises a diaphragm and a metal seat integrally formed with the diaphragm, the metal seat extends out of the upper part of the diaphragm, the diaphragm is arranged at the joint of the upper shell and the lower shell, and the pull-up assembly extends into the upper shell and is connected with the top of the metal seat; the overpressure and underpressure adjusting assembly is arranged in the lower shell and comprises a ship-shaped shell, a closing member, a spring, a push plate, a lever and a T-shaped magnetic part, wherein a baffle is arranged at one end of the ship-shaped shell, a through hole is formed in the baffle, limiting plates are symmetrically arranged at the other end of the ship-shaped shell, an installation position is formed between the limiting plates, the T-shaped magnetic part extends into the installation position, a hole groove is formed in the lower end of the T-shaped magnetic part, one end of the lever penetrates through the hole groove, a pushing end and a hinged end hinged with the limiting plates are arranged at the other end of the lever, one end of the closing member extends into the ship-shaped shell from the through hole and is in contact with the pushing end, the other end of the closing member and an air inlet gap is formed between the air inlet pipe and the closing member, and the spring is sleeved on the closing member and positioned between the push plate and the baffle; the T-shaped magnetic part is positioned below the metal seat; the rated flow limiting assembly is arranged in the air inlet pipe.

Preferably, the rated flow current limiting component comprises an arc-shaped mesh plate, a cylinder shell and a metal current limiting piece, the arc-shaped mesh plate is arranged at one end of the cylinder shell, the metal current limiting piece is arranged inside the cylinder shell, one end of the metal current limiting piece is connected with the inner wall of the cylinder shell, an air inlet is formed in one end, far away from the arc-shaped mesh plate, of the cylinder shell, and the air inlet is located on one side of an air inlet gap.

Preferably, the cylinder shell comprises a first shell and a second shell, the air inlet is arranged in the second shell, one end of the metal flow limiting piece is connected with the inner wall of the second shell, the arc-shaped reticular plate is connected with the first shell, and the first shell is detachably connected with the second shell through a buckle.

Preferably, the overpressure and underpressure adjusting assembly further comprises a bolt, wherein the bolt penetrates into the limiting plate from one side of the ship-shaped shell and penetrates out from the other side of the ship-shaped shell after penetrating through the hinged end.

Preferably, the air inlet device further comprises a sealing rubber ring, wherein the sealing rubber ring is sleeved on the closing member and is positioned at the air inlet gap.

Preferably, the limiting plate is provided with a fixing plate, the fixing plate is provided with a first threaded hole, and the lower shell is provided with a second threaded hole.

Preferably, the gas outlet pipe further comprises a ball valve, and the ball valve is arranged on the gas outlet pipe.

Preferably, the pull-up assembly includes pull button and connecting rod, the pull button sets up in the epitheca top, connecting rod one end is stretched into the epitheca inside and is connected with the metal base, and the other end is connected with the pull button.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model provides a modular gas self-closing valve, the inferior valve, the intake pipe and the outlet duct integrated into one piece, can reduce cost, the superpressure and under-voltage adjusting part, rated flow current-limiting part and the diaphragm seal subassembly that set up are modular structure simultaneously, can put into the valve body after the external makeup well again, can reduce the assembly degree of difficulty, improve the efficiency of assembly, and when the pressure of giving vent to anger increases, the lever upwards rotates, and promote the closure member to move, make the air inlet gap increase, when the push pedal moves to the baffle department, the closure member can' T move again, if the pressure of giving vent to anger still increases at this moment, can lead to the diaphragm to rise, when the thrust that the diaphragm receives is greater than the magnetic force of T type magnetic part to the metal base, can make T type magnetic part and metal base separation, thereby the lever falls, the closure member resets under the spring action, close the air inlet gap, the air inlet is cut off, and the gas leakage is prevented.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only preferred embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive effort.

FIG. 1 is a cross-sectional view of a modular gas self-closing valve of the present invention;

FIG. 2 is a schematic view of the disassembled structure of a modular gas self-closing valve of the present invention;

FIG. 3 is a schematic structural diagram of an overpressure and underpressure adjusting assembly of a modular gas self-closing valve according to the present invention;

FIG. 4 is an exploded view of the overpressure and underpressure adjusting assembly of the modular gas self-closing valve of the present invention;

FIG. 5 is an exploded view of the rated flow limiting assembly of the modular gas self-closing valve of the present invention;

in the figure, 1 is an upper shell, 2 is an air inlet pipe, 3 is an air outlet pipe, 4 is a lower shell, 5 is a diaphragm, 6 is a metal seat, 7 is a boat-shaped shell, 8 is a closing member, 9 is a spring, 10 is a push plate, 11 is a lever, 12 is a T-shaped magnetic member, 13 is a baffle, 14 is a through hole, 15 is a limiting plate, 16 is a mounting position, 17 is a hole groove, 18 is a pushing end, 19 is a hinged end, 20 is an arc-shaped reticular plate, 21 is a metal flow-limiting member, 22 is an air inlet, 23 is a first shell, 24 is a second shell, 25 is a bolt, 26 is a sealing rubber ring, 27 is a fixing plate, 28 is a first threaded hole, 29 is a second threaded hole, 30 is a ball valve, 31 is a pull button, and 32 is a connecting rod.

Detailed Description

In order to better understand the technical content of the present invention, a specific embodiment is provided below, and the present invention is further described with reference to the accompanying drawings.

Referring to fig. 1 to 5, the utility model provides a modular gas self-closing valve, including epitheca 1, pull-up subassembly, superpressure under-pressure adjusting part, rated flow current limiting subassembly, diaphragm seal subassembly and integrated into one piece intake pipe 2, outlet duct 3 and inferior valve 4, epitheca 1 and inferior valve 4 can be dismantled and be connected, diaphragm seal subassembly include diaphragm 5 and with diaphragm 5 integrated into one piece metal seat 6, metal seat 6 stretches out above diaphragm 5, diaphragm 5 sets up the junction of epitheca 1 and inferior valve 4, pull-up subassembly stretch into epitheca 1 inside and with metal seat 6 top connection; the overpressure and underpressure adjusting assembly is arranged in the lower shell 4 and comprises a ship-shaped shell 7, a closing member 8, a spring 9, a push plate 10, a lever 11 and a T-shaped magnetic member 12, one end of the boat-shaped shell 7 is provided with a baffle 13, the baffle 13 is provided with a through hole 14, the other end is symmetrically provided with a limit plate 15, the mounting positions 16 are formed between the limiting plates 15, the T-shaped magnetic element 12 extends into the mounting positions 16, the lower end of the lever is provided with a hole groove 17, one end of the lever 11 passes through the hole groove 17, the other end is provided with a pushing end 18 and a hinged end 19 hinged with the limit plate 15, one end of the closing member 8 extends into the boat-shaped shell 7 from the through hole 14 and is contacted with the pushing end 18, the other end forms an air inlet gap with the air inlet pipe 2, the push plate 10 is arranged on the closing member 8, and the spring 9 is sleeved on the closing member 8 and is positioned between the push plate 10 and the baffle 13; the T-shaped magnetic part 12 is positioned below the metal seat 6; the rated flow limiting assembly is arranged in the air inlet pipe 2.

The utility model discloses a gas module self-closing valve, with inferior valve 4 and

intake pipe

2 and 3 integrated into one piece backs of outlet duct, can reduction in production cost, and the overpressure under-voltage adjusting part that sets up inside the valve body, rated flow current-limiting subassembly and diaphragm seal the subassembly and be inside detachable installs the valve body, when production assembly, with overpressure under-voltage adjusting part, rated flow current-limiting subassembly and diaphragm seal the subassembly after externally assembling, integral erection is again in the valve body, thereby can reduce the degree of difficulty of assembly, improve the efficiency of assembly, when one of them subassembly goes wrong, can change this subassembly alone, reduce use cost.

When the self-closing valve is in a closed state, the T-shaped magnetic part 12 and the metal seat 6 are magnetically attracted through the diaphragm 5, the closing part 8 closes the air inlet gap, when the self-closing valve needs to be used, the pull-up assembly is pulled firstly, the metal seat 6 drives the T-shaped magnetic part 12 to move upwards, the lever 11 rotates upwards by taking the hinged end 19 as the axial direction, in the process that the lever 11 rotates upwards, the push end 18 of the lever can push the closing part 8 to move towards the air inlet pipe 2, so that the closing part 8 leaves the air inlet gap, at the moment, fuel gas can enter the inside of the valve body through the air inlet pipe 2, the diaphragm 5 is at a stable height under the pushing of the fuel gas, and at the moment, the fuel gas can be conveyed into gas equipment through the air outlet pipe 3.

When the gas outlet pressure is suddenly increased, the diaphragm 5 can be jacked upwards and drives the metal seat 6 and the T-shaped magnetic part 12 to move upwards, the lever 11 pushes the closing part 8 to move towards the baffle 13, when the push plate 10 on the closing part 8 moves to the baffle 13, the closing part 8 cannot be pushed any more, if the gas outlet pressure is still continuously increased, when the gas thrust borne by the diaphragm 5 is greater than the magnetic force of the T-shaped magnetic part 12 on the metal seat 6, the metal seat 6 is separated from the T-shaped magnetic part 12, the T-shaped magnetic part 12 falls under the action of gravity, the lever 11 rotates downwards, the push end 18 of the lever leaves the closing part 8, the spring 9 pushes the push plate 10 to move towards the limiting plate 15, the closing part 8 returns to the initial position and closes the gas inlet gap, the gas inlet is cut off, the gas leakage is prevented, and the gas outlet flow is closed within a set value.

Preferably, rated flow current-limiting component includes arc-shaped mesh plate 20, cylinder shell and metal current-limiting piece 21, arc-shaped mesh plate 20 sets up the one end at the cylinder shell, metal current-limiting piece 21 sets up inside the cylinder shell, and its one end and cylinder shell inner wall are connected, the one end that arc-shaped mesh plate 20 was kept away from to the cylinder shell is provided with air inlet 22, air inlet 22 is located air inlet gap one side, the cylinder shell includes first casing 23 and second casing 24, air inlet 22 sets up in second casing 24, metal current-limiting piece 21 one end and second casing 24 inner wall are connected, arc-shaped mesh plate 20 is connected with first casing 23, first casing 23 passes through the buckle and can dismantle with second casing 24 and be connected.

Specifically, the utility model discloses a metal current-limiting piece 21 is as current-limiting part, compare in the current-limiting part of rubber material, can not receive the influence of temperature, guarantee its current-limiting effect of performance that all can be normal under any weather, metal current-limiting piece 21 has elastic deformation, its one end and the contact of second casing 24 inner wall, when the gas passes through the drum shell, can promote metal current-limiting piece 21 and remove to air inlet 22 direction, if the air input increases suddenly, the distance between metal current-limiting piece 21 and the air inlet 22 is less, metal current-limiting piece 21 can carry out partial shutoff to air inlet 22, prevent that the air input flow is too big.

And through the first casing 23 and the second casing 24 that set up, can conveniently carry out the dismouting to metal current-limiting piece 21, rated flow current-limiting subassembly is whole to be installed the back in the valve body outside, can directly put into intake pipe 2, reduces the degree of difficulty of assembly.

Preferably, the overpressure and underpressure adjusting assembly further comprises a bolt 25, and the bolt 25 penetrates into the limiting plate 15 from one side of the ship-shaped shell 7 and penetrates out from the other side of the ship-shaped shell 7 after penetrating through the hinged end 19.

The hinge joint of the lever 11 can be realized through the arranged bolt 25, the temperature control part is also arranged in the T-shaped magnetic part 12, when the temperature in the valve body is overhigh, the T-shaped magnetic part 12 can be separated from the metal seat 6, and the valve body can be automatically closed when the temperature is overhigh.

Preferably, the air conditioner further comprises a sealing rubber ring 26, wherein the sealing rubber ring 26 is sleeved on the closing member 8 and is positioned at the air inlet gap.

The sealing rubber ring 26 is used for sealing the air inlet gap and preventing gas leakage.

Preferably, the limiting plate 15 is provided with a fixing plate 27, the fixing plate 27 is provided with a first threaded hole 28, and the lower shell 4 is provided with a second threaded hole 29.

When the overpressure and underpressure adjusting assembly is installed, the overpressure and underpressure adjusting assembly is installed by screws through the first threaded hole 28 and the second threaded hole 29.

Preferably, the gas outlet pipe also comprises a ball valve 30, and the ball valve 30 is arranged on the gas outlet pipe 3.

The closure of the outlet pipe 3 can be achieved by means of the ball valve 30 provided.

Preferably, the upward pull assembly comprises a pull button 31 and a connecting rod 32, the pull button 31 is arranged above the upper shell 1, one end of the connecting rod 32 extends into the upper shell 1 and is connected with the metal base 6, and the other end of the connecting rod is connected with the pull button 31.

By pulling the pull button 31, the pull button 31 pulls the connecting rod 32, so that the connecting rod 32 can pull the metal base 6 to move upwards, and the T-shaped magnetic part 12 can be driven to move upwards synchronously.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A modular gas self-closing valve is characterized by comprising an upper shell, a pull-up component, an overpressure and underpressure adjusting component, a rated flow limiting component, a diaphragm sealing component, an integrally formed gas inlet pipe, a gas outlet pipe and a lower shell, wherein the upper shell and the lower shell are detachably connected, the diaphragm sealing component comprises a diaphragm and a metal seat integrally formed with the diaphragm, the metal seat extends out of the upper part of the diaphragm, the diaphragm is arranged at the joint of the upper shell and the lower shell, and the pull-up component extends into the upper shell and is connected with the top of the metal seat; the overpressure and underpressure adjusting assembly is arranged in the lower shell and comprises a ship-shaped shell, a closing member, a spring, a push plate, a lever and a T-shaped magnetic part, wherein a baffle is arranged at one end of the ship-shaped shell, a through hole is formed in the baffle, limiting plates are symmetrically arranged at the other end of the ship-shaped shell, an installation position is formed between the limiting plates, the T-shaped magnetic part extends into the installation position, a hole groove is formed in the lower end of the T-shaped magnetic part, one end of the lever penetrates through the hole groove, a pushing end and a hinged end hinged with the limiting plates are arranged at the other end of the lever, one end of the closing member extends into the ship-shaped shell from the through hole and is in contact with the pushing end, the other end of the closing member and an; the T-shaped magnetic part is positioned below the metal seat; the rated flow limiting assembly is arranged in the air inlet pipe.

2. The modular gas self-closing valve as claimed in claim 1, wherein the rated flow restriction assembly comprises an arc-shaped mesh plate, a cylinder housing and a metal restriction, the arc-shaped mesh plate is arranged at one end of the cylinder housing, the metal restriction is arranged in the cylinder housing, one end of the metal restriction is connected with the inner wall of the cylinder housing, an air inlet is arranged at one end of the cylinder housing far away from the arc-shaped mesh plate, and the air inlet is positioned at one side of the air inlet gap.

3. The modular gas self-closing valve according to claim 2, wherein said cylindrical shell comprises a first shell and a second shell, said gas inlet is arranged in the second shell, one end of said metal flow restrictor is connected with the inner wall of the second shell, said arc-shaped reticular plate is connected with the first shell, and said first shell is detachably connected with the second shell through a buckle.

4. The modular gas self-closing valve as claimed in claim 1, wherein the overpressure and underpressure adjusting assembly further comprises a plug which penetrates from one side of the ship-shaped shell to the inside of the limiting plate and penetrates through the hinged end and then penetrates out from the other side of the ship-shaped shell.

5. The modular gas self-closing valve according to claim 1, further comprising a sealing rubber ring, which is sleeved on the closing member and is located at the air inlet gap.

6. The modular gas self-closing valve as claimed in claim 1, wherein the limiting plate is provided with a fixing plate, the fixing plate is provided with a first threaded hole, and the lower shell is provided with a second threaded hole.

7. The modular gas self-closing valve according to claim 1, further comprising a ball valve, wherein the ball valve is arranged on the gas outlet pipe.

8. The modular gas self-closing valve according to claim 1, wherein the pull-up assembly comprises a pull button and a connecting rod, the pull button is arranged above the upper shell, one end of the connecting rod extends into the upper shell and is connected with the metal seat, and the other end of the connecting rod is connected with the pull button.