CN211449790U

CN211449790U - General type self-closing valve

Info

Publication number: CN211449790U
Application number: CN202020699071.6U
Authority: CN
Inventors: 曾鹏; 曾广天
Original assignee: Hainan Widely Tianheng Technology Development Co ltd
Current assignee: Hainan Widely Tianheng Technology Development Co ltd
Priority date: 2020-04-30
Filing date: 2020-04-30
Publication date: 2020-09-08
Anticipated expiration: 2030-04-30

Abstract

The utility model provides a general type self-closing valve, including valve body, intake pipe, outlet duct, current-limiting subassembly, pull-up subassembly and air admission control subassembly, air admission control subassembly includes spring, sealed pressing piece, lever and fixing base, current-limiting piece detachable sets up in the intake pipe, thereby can change according to the user demand not, save the cost, when needs use the valve, the pulling pull-up subassembly, the pull rod of pull-up subassembly bottom can stimulate the lever and rotate, the catch end that the lever tip set up rotates downwards and promotes sealed pressing piece downstream, thereby inside intake pipe and horizontal air inlet entering valve body can be followed to the gas, and carry outside gas consumer through the outlet duct, valve body inner structure is simple, the cost is lower, can realize the effective transmission and the cutting off of gas.

Description

General type self-closing valve

Technical Field

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

Background

The fuel gas comprises natural gas, coal gas, liquefied petroleum gas and the like, is a novel energy source which is rapidly developed in the last decade, the mass use of the fuel gas is the performance of social progress and urban modernization, the urban pollution degree is greatly reduced, meanwhile, great convenience and efficiency are brought to people, the self-closing valves used in the current cities are integrally designed according to the use environment, the parts in the self-closing valves cannot be replaced so as to be suitable for different scenes, and the structure for controlling the fuel gas circulation in the valve is complex, so that the production cost is high, and the actual production is not facilitated.

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model provides a general type self-closing valve is provided with detachable current-limiting component in intake pipe department to can change different current-limiting components to service environment not, reduce use cost, the inside structure that is used for controlling the gas circulation is comparatively simple, and manufacturing cost is lower.

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

a general self-closing valve comprises a valve body, an air inlet pipe, an air outlet pipe, a flow limiting assembly, a pull-up assembly and an air inlet control assembly, wherein the air inlet pipe and the air outlet pipe are communicated at two sides of the valve body; the air inlet control assembly comprises a spring, a sealing pressing piece, a lever and a fixing seat, wherein the sealing pressing piece is arranged below a horizontal air inlet and is connected with the inner lower surface of the valve body through the spring, the lever and the fixing seat are located above the horizontal air inlet, the lever is rotatably connected with the fixing seat through a bolt and comprises a strip-shaped groove and a pushing end, the pushing end is in contact with the sealing pressing piece, a pull rod is arranged at the lower end of the pull-up assembly and is located in the strip-shaped groove, the pull rod pulls the strip-shaped groove to enable the lever to rotate, and the pushing end is enabled to press the sealing pressing piece downwards.

Preferably, the air inlet control assembly further comprises a sealing rubber ring, the sealing rubber ring is arranged at the horizontal air inlet, and the contact part of the sealing pressing piece and the lever is of a structure with a small upper part and a large lower part.

Preferably, the flow limiting assembly comprises a flow limiting piece and a flow plate, wherein a flow hole is formed in the flow plate, and the flow plate and the flow limiting piece are sequentially arranged in the air inlet pipe along the air inlet direction.

Preferably, the current-limiting piece includes seal receptacle, elastic connection portion and gasket, the inner wall contact of seal receptacle and intake pipe, its middle part is provided with the through-hole, elastic connection portion one end sets up on the seal receptacle, and the other end is connected with the gasket.

Preferably, a diaphragm is arranged on the part of the pull-up assembly positioned in the valve body, and the diaphragm divides the interior of the valve body into an upper part and a lower part.

Preferably, the pull-up assembly further comprises a pull button, a connecting rod, a metal piece and a magnet piece, wherein the pull button is located above the valve body, the connecting rod is located inside the valve body, one end of the connecting rod is connected with the pull button, the other end of the connecting rod is connected with the metal piece, the metal piece is located above the diaphragm, the magnet piece is located below the diaphragm and is magnetically attracted together with the metal piece, and the pull rod is located below the magnet piece.

Preferably, an opening is formed in the strip-shaped groove and faces the bottom of the valve body.

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

the utility model provides a general type self-closing valve, current-limiting component detachable installs in the intake pipe, thereby can change current-limiting component according to the user demand of difference, thereby be applicable to multiple different scenes, and when using, the pulling pull-up subassembly, the pull-up subassembly can drive the lever and rotate, make the promotion end of lever one end push down, and promote sealed pressing part downstream, sealed pressing part downstream back, inside intake pipe and horizontal air inlet entering valve body can be followed to the gas, and from the outlet duct output, thereby realize the normal transport of gas.

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 schematic structural diagram of a general self-closing valve of the present invention;

FIG. 2 is a schematic view of the internal structure of a general self-closing valve according to the present invention;

FIG. 3 is an exploded view of a universal self-closing valve of the present invention;

fig. 4 is a schematic structural diagram of a general self-closing valve according to the present invention in a closed state;

fig. 5 is a schematic structural diagram of the general self-closing valve of the present invention in an open state;

FIG. 6 is a schematic structural view of a flow limiting assembly of a universal self-closing valve according to the present invention;

in the figure, 1 is a valve body, 2 is an air inlet pipe, 3 is an air outlet pipe, 4 is a horizontal air inlet, 5 is a spring, 6 is a sealing pressing piece, 7 is a lever, 8 is a fixed seat, 9 is a bolt, 10 is a strip-shaped groove, 11 is a pushing end, 12 is a pull rod, 13 is a sealing rubber ring, 14 is a flow limiting piece, 15 is a flow plate, 16 is a flow hole, 17 is a sealing seat, 18 is an elastic connecting part, 19 is a sealing piece, 20 is a through hole, 21 is a membrane, 22 is a pull button, 23 is a connecting rod, 24 is a metal piece, 25 is a magnet piece, and 26 is an opening.

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 6, the utility model provides a general type self-closing valve, including valve body 1, intake pipe 2, outlet duct 3, current-limiting component, pull-up subassembly and air inlet control subassembly, intake pipe 2 and outlet duct 3 communicate at valve body 1 both sides, the inside horizontal air inlet 4 that communicates intake pipe 2 that is provided with of valve body 1, air inlet control subassembly sets up in horizontal air inlet 4 department, current-limiting component can dismantle and set up in intake pipe 2, the pull-up subassembly is located valve body 1 top, and stretches into the inside of valve body 1 and is connected with air inlet control subassembly; the control assembly that admits air includes spring 5, sealed pressing piece 6, lever 7 and fixing base 8, sealed pressing piece 6 sets up in 4 below of horizontal air inlet and is connected with 1 inside lower surfaces of valve body through spring 5, lever 7 and fixing base 8 are located 4 tops of horizontal air inlet, just lever 7 rotates with fixing base 8 through bolt 9 and is connected, lever 7 includes bar groove 10 and catch end 11, catch end 11 and the contact of sealed pressing piece 6, it is provided with pull rod 12 to pull up the subassembly lower extreme, pull rod 12 is arranged in bar groove 10, pull rod 12 stimulates bar groove 10 and makes lever 7 rotate to make catch end 11 push down sealed pressing piece 6.

The utility model discloses a general type self-closing valve, gas flow in 1 inside back of valve body from intake pipe 2, carry for gas user equipment from outlet duct 3, and have set up detachable current-limiting component in 2 insides of intake pipe, and current-limiting component can restrict admitting air to be applicable to different users' user demand, current-limiting component can dismantle to get off and change, thereby is applicable to different user demands.

The utility model discloses a general type self-closing valve, under the unused state, sealed pressing member 6 upwards extrudes at horizontal air inlet 4 under the effect of spring 5, the maximum external diameter of sealed pressing member 6 is greater than the diameter of horizontal air inlet 4, thereby under the effect of spring 5, sealed pressing member 6 can seal horizontal air inlet 4, make the gas that intake pipe 2 carried can't enter into the valve body 1 inside, when needs use, pull up the subassembly, pull rod 12 of pull-up subassembly upwards moves in bar groove 10 of lever 7, because lever 7 and fixing base 8 rotate through bolt 9 and be connected, therefore the other end of lever 7 that is provided with propelling end 11 can rotate downwards, and promote the sealed pressing member 6 rather than the contact and move downwards, after sealed pressing member 6 moved downwards, the gas that is arranged in intake pipe 2 can enter into the valve body 1 from horizontal air inlet 4, so that the gas can be delivered to the gas using equipment through the gas outlet pipe 3.

Preferably, the air inlet control assembly further comprises a sealing rubber ring 13, the sealing rubber ring 13 is arranged at the horizontal air inlet 4, and the contact part of the sealing pressing piece 6 and the lever 7 is of a structure with a small top and a big bottom.

The sealing rubber ring 13 is used for sealing the horizontal air inlet 4 and is arranged at the horizontal air inlet 4, the upper half part of the sealing pressing piece 6 is of a circular truncated cone-like structure with a small upper part and a large lower part, and the upper end edge of the sealing pressing piece 6 is in contact with the sealing rubber ring 13 to seal the horizontal air inlet 4 in an unused state.

Preferably, the current-limiting component includes current-limiting piece 14 and flow plate 15, be provided with flow hole 16 on the flow plate 15, flow plate 15 and current-limiting piece 14 set gradually inside intake pipe 2 along the direction of admitting air, current-limiting piece 14 includes seal receptacle 17, elastic connecting portion 18 and gasket 19, seal receptacle 17 and the inner wall contact of intake pipe 2, its middle part is provided with through-hole 20, elastic connecting portion 18 one end sets up on seal receptacle 17, and the other end is connected with gasket 19.

The flow plate 15 through changing different flow holes 16 can realize the change to different intake flows, thereby be applicable to different user demands, and the purpose of current-limiting piece 14 can carry out automatically regulated when the intake flow of intake pipe 2 changes, when the gas flow of outside transport increases, can provide a thrust for gasket 19, make gasket 19 to the swing of seal receptacle 17 direction, thereby make the cavity between gasket 19 and the seal receptacle 17 diminish, the gas of carrying valve body 1 inside this moment also can the shape shadow reduce, reach the purpose of current-limiting.

And the area of gasket 19 will be greater than the area of through-hole 20, when the gas flow of outside transport is constantly increased, gasket 19 is promoted towards seal receptacle 17 direction continuously, finally make gasket 19 cover completely on through-hole 20, thereby cut off the transport of gas, prevent that too much gas from entering into valve body 1 inside and causing the gas to leak or the too big user's burn of leaving the flame printing of causing of flow, when the gas flow of outside transport resumes the normal value, under elastic connection portion 18's effect, can bring gasket 19 back to initial position, make to form the cavity between gasket 19 and the seal receptacle 17, thereby can drop into the use again.

Preferably, the part that the upward pull assembly is located the valve body 1 inside is provided with diaphragm 21, diaphragm 21 divides into two parts from top to bottom with the valve body 1 inside, the upward pull assembly is still including drawing button 22, connecting rod 23, metalwork 24 and magnet piece 25, draw button 22 to be located the valve body 1 top, connecting rod 23 is located the valve body 1 inside, and its one end is connected with drawing button 22, and the other end is connected with metalwork 24, metalwork 24 is located the diaphragm 21 top, magnet piece 25 is located the diaphragm 21 below to be in the same place with 24 magnetism of metalwork, pull rod 12 is located magnet piece 25 below.

The diaphragm 21 divides the interior of the valve body 1 into two parts, the upper part does not have the flow of fuel gas, and the fuel gas enters the lower part from the air inlet pipe 2 and the horizontal air inlet 4 and is then conveyed out from the air outlet pipe 3.

When needs use the valve, the pulling is drawn button 22, draw button 22 can drive connecting rod 23 rebound, connecting rod 23 drives metalwork 24 rebound, under the magnetic force effect, magnet piece 25 also can rebound, because diaphragm 21 sets up between metalwork 24 and magnet piece 25, consequently, diaphragm 21 can the kickup take place deformation, when magnet piece 25 rebound, the pull rod 12 of its lower part setting can stimulate lever 7 and take place to rotate, thereby the promotion end 11 of lever 7 promotes sealed pressing piece 6 rebound, make the gas can enter into inside valve body 1 from horizontal air inlet 4, can carry the gas outlet duct 3 to the gas user equipment this moment.

When the part of the valve body 1 below the diaphragm 21 is filled with gas, the internal gas can provide an upward thrust for the diaphragm 21, so that the metal piece 24 and the magnet piece 25 are kept in a balanced state, at the moment, the pushing end 11 of the lever 7 can continuously push the sealing pressing piece 6, and the normal supply of the gas is ensured, and when the gas flow input into the valve body 1 is suddenly reduced, the gravity of the metal piece 24, the magnet piece 25 and the like is greater than the upward thrust of the gas to the diaphragm 21, at the moment, the metal piece 24 and the magnet piece 25 fall off, so that the gas just rotates to the initial position, the sealing pressing piece 6 seals the horizontal gas inlet 4 under the action of the spring 5, and the automatic closing when the pressure of the gas is too low is realized; when the gas pressure of admitting air is too big, diaphragm 21 can constantly upwards promote, when thrust is greater than the magnetic force between metalwork 24 and the magnet piece 25, can make metalwork 24 and magnet piece 25 part, and magnet piece 25 drives lever 7 after dropping and rotates back to initial position to sealed pressing piece 6 seals horizontal air inlet 4 under the effect of spring 5, realizes admitting air the self-closing when gas pressure is too big.

Specifically, the lower end of the magnet piece 25 extends into the inside of the fixing seat 8, so that the pull rod 12 arranged at the lower end thereof can be inserted into the strip-shaped groove 10 of the lever 7.

Preferably, the strip-shaped groove 10 is provided with an opening 26, and the opening 26 faces to the bottom of the valve body 1.

In the non-use state, the strip-shaped groove 10 is in a horizontal state, the opening 26 of the strip-shaped groove is towards the bottom of the valve body 1, when the pull knob 22 is pulled, the pull rod 12 moves in the strip-shaped groove 10 and moves above the opening 26, so that the rotation of the lever 7 is realized, and the opening 26 is arranged to facilitate the installation of the lever 7.

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 general self-closing valve is characterized by comprising a valve body, an air inlet pipe, an air outlet pipe, a flow limiting assembly, a pull-up assembly and an air inlet control assembly, wherein the air inlet pipe and the air outlet pipe are communicated at two sides of the valve body; the air inlet control assembly comprises a spring, a sealing pressing piece, a lever and a fixing seat, wherein the sealing pressing piece is arranged below a horizontal air inlet and is connected with the inner lower surface of the valve body through the spring, the lever and the fixing seat are located above the horizontal air inlet, the lever is rotatably connected with the fixing seat through a bolt and comprises a strip-shaped groove and a pushing end, the pushing end is in contact with the sealing pressing piece, a pull rod is arranged at the lower end of the pull-up assembly and is located in the strip-shaped groove, the pull rod pulls the strip-shaped groove to enable the lever to rotate, and the pushing end is enabled to press the sealing pressing piece downwards.

2. The universal self-closing valve according to claim 1, wherein the air inlet control assembly further comprises a sealing rubber ring, the sealing rubber ring is arranged at the horizontal air inlet, and the contact part of the sealing pressing piece and the lever is of a structure with a small top and a big bottom.

3. A universal self-closing valve according to claim 1, wherein the flow restricting assembly comprises a flow restricting member and a flow plate, the flow plate having a flow orifice, the flow plate and the flow restricting member being arranged in series along the inlet flow direction within the inlet gas duct.

4. A general self-closing valve according to claim 3, wherein the flow restriction member comprises a sealing seat, an elastic connection portion and a sealing sheet, the sealing seat is in contact with the inner wall of the air inlet pipe, a through hole is formed in the middle of the sealing seat, one end of the elastic connection portion is arranged on the sealing seat, and the other end of the elastic connection portion is connected with the sealing sheet.

5. A self-closing valve of the generic type according to claim 1, characterised in that the portion of the pull-up assembly inside the valve body is provided with a membrane which divides the inside of the valve body into an upper and a lower portion.

6. A universal self-closing valve according to claim 5, wherein the pull-up assembly further comprises a pull button, a connecting rod, a metal member and a magnet member, the pull button is located above the valve body, the connecting rod is located inside the valve body, one end of the connecting rod is connected with the pull button, the other end of the connecting rod is connected with the metal member, the metal member is located above the diaphragm, the magnet member is located below the diaphragm and magnetically attracted with the metal member, and the pull rod is located below the magnet member.

7. Self-closing valve of the generic type according to claim 1, characterised in that said strip-shaped groove is provided with an opening directed towards the bottom of the valve body.