CN115419827A - Gas cylinder valve with sealing reinforcing structure and sealing method - Google Patents

Gas cylinder valve with sealing reinforcing structure and sealing method Download PDF

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Publication number
CN115419827A
CN115419827A CN202210977569.8A CN202210977569A CN115419827A CN 115419827 A CN115419827 A CN 115419827A CN 202210977569 A CN202210977569 A CN 202210977569A CN 115419827 A CN115419827 A CN 115419827A
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CN
China
Prior art keywords
valve body
sealing
spring
shell
handle
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN202210977569.8A
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Chinese (zh)
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CN115419827B (en
Inventor
何忠华
何忠先
何坚
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangsu Fanghua Valve Filling Equipment Co ltd
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Jiangsu Fanghua Valve Filling Equipment Co ltd
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Publication date
Application filed by Jiangsu Fanghua Valve Filling Equipment Co ltd filed Critical Jiangsu Fanghua Valve Filling Equipment Co ltd
Priority to CN202210977569.8A priority Critical patent/CN115419827B/en
Publication of CN115419827A publication Critical patent/CN115419827A/en
Application granted granted Critical
Publication of CN115419827B publication Critical patent/CN115419827B/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/04—Arrangement or mounting of valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/02—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with screw-spindle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32—Details
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32—Details
    • F16K1/34—Cutting-off parts, e.g. valve members, seats
    • F16K1/36—Valve members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32—Details
    • F16K1/34—Cutting-off parts, e.g. valve members, seats
    • F16K1/36—Valve members
    • F16K1/38—Valve members of conical shape
    • F16K1/385—Valve members of conical shape contacting in the closed position, over a substantial axial length, a seat surface having the same inclination
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32—Details
    • F16K1/34—Cutting-off parts, e.g. valve members, seats
    • F16K1/46—Attachment of sealing rings
    • F16K1/465—Attachment of sealing rings to the valve seats
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/02—Construction of housing; Use of materials therefor of lift valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/02—Construction of housing; Use of materials therefor of lift valves
    • F16K27/0254—Construction of housing; Use of materials therefor of lift valves with conical shaped valve members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/44—Mechanical actuating means
    • F16K31/60—Handles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K35/00—Means to prevent accidental or unauthorised actuation
    • F16K35/02—Means to prevent accidental or unauthorised actuation to be locked or disconnected by means of a pushing or pulling action
    • F16K35/022—Means to prevent accidental or unauthorised actuation to be locked or disconnected by means of a pushing or pulling action the locking mechanism being actuated by a separate actuating element
    • F16K35/025—Means to prevent accidental or unauthorised actuation to be locked or disconnected by means of a pushing or pulling action the locking mechanism being actuated by a separate actuating element said actuating element being operated manually (e.g. a push-button located in the valve actuator)
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K41/00—Spindle sealings
    • F16K41/02—Spindle sealings with stuffing-box ; Sealing rings
    • F16K41/04—Spindle sealings with stuffing-box ; Sealing rings with at least one ring of rubber or like material between spindle and housing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L23/00—Flanged joints
    • F16L23/16—Flanged joints characterised by the sealing means

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lift Valve (AREA)

Abstract

The invention discloses a gas cylinder valve with a seal strengthening structure and a sealing method, the gas cylinder valve comprises a valve body, the top of the outer wall of the valve body is in threaded connection with a shell, a handle is rotatably connected on the shell, one end of the handle penetrating through the shell and the valve body is fixedly connected with a threaded rod, the threaded rod is in threaded connection with the shell, and one end of the bottom of the threaded rod is fixedly connected with a trapezoidal block, the gas cylinder valve has the beneficial effects that: when the valve body is closed, the bottom of the sealing block is matched with the sealing ring, so that a sealing effect is achieved, when the valve body is opened, the sealing block extrudes the first spring, the first spring extrudes the first rubber sealing gasket, the first rubber sealing gasket is extruded on the inner wall of the shell, the sealing effect is achieved, gas is prevented from leaking out of the position of the handle, the handle is limited by using the limiting rod, when the valve body is closed, the valve body can be prevented from being opened accidentally, so that the gas leaks to influence the use of the device, and when the valve body needs to be opened, the limiting rod is pressed to move towards the inside of the fixing rod, so that the valve body is convenient to open.

Description

Gas cylinder valve with sealing reinforcing structure and sealing method
Technical Field
The invention relates to the technical field of gas cylinder valve equipment, in particular to a gas cylinder valve with a sealing reinforcing structure and a sealing method.
Background
The gas cylinder valve is a valve structure which is arranged on a gas cylinder and controls gas to enter and exit, and is mostly of a manual structure, simple structure and high strength.
The gas cylinder valve is installed on the gas cylinder, and the gas pressure in the gas cylinder is high, so that the gas cylinder is easy to leak, and a better sealing structure is often needed.
If the sealing effect of the gas cylinder valve is poor, gas leakage can occur easily, and accidents are easy to happen due to the fact that the gas pressure in the gas cylinder is high, so that other hazards such as explosion, fire and the like are caused.
Therefore, a cylinder valve having a seal reinforcing structure and a sealing method are designed to solve the above problems.
Disclosure of Invention
The invention aims to provide a gas cylinder valve with a seal reinforcing structure and a sealing method, when a valve body is closed, a sealing effect is achieved by the mutual matching of the bottom of a sealing block and a sealing ring, when the valve body is opened, a first spring is extruded by the sealing block and extrudes a first rubber sealing gasket to extrude the inner wall of a shell, the sealing effect is achieved, gas is prevented from leaking out of the position of a handle, the handle is limited by using a limiting rod, when the valve body is closed, the valve body can be prevented from being accidentally opened to cause gas leakage and influence the use of the device, when the valve body needs to be opened, the limiting rod is pressed to move towards the inside of the fixing rod, the valve body is convenient to open, and the problems in the background technology are solved.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a gas cylinder valve with sealed additional strengthening, includes the valve body, valve body outer wall top threaded connection has the shell, it is connected with the handle to rotate on the shell, the handle passes shell and valve body one end fixedly connected with threaded rod, threaded rod and shell threaded connection, threaded rod bottom one end fixedly connected with trapezoidal piece, trapezoidal piece bottom pot head has first rubber packing pad, the threaded rod passes first rubber packing pad pot head and has first spring, the threaded rod passes the sealed piece of first spring one end fixedly connected with, sealed piece bottom joint is on the valve body inner chamber, and when the valve body was closed, through sealed piece bottom and sealing washer mutually supporting, reach sealed effect, when the valve body was opened, through sealed piece extrusion first spring, first rubber packing pad was extruded to first spring for its extrusion shell inner wall reaches sealed effect, prevents that gaseous from revealing away from the handle position.
In a further embodiment, the valve body inner chamber is provided with a groove matched with the sealing block, the sealing ring is adhered to the inside of the groove, the sealing block is in mutual contact with the sealing ring, one end of the top of the first spring is in contact with the first rubber sealing gasket, and one end of the bottom of the first spring is in contact with the sealing block, so that a better sealing effect is achieved.
In a further embodiment, the sealing layer is adhered to one end, close to the threaded rod, of the inner cavity of the shell, the cross section of the first rubber sealing gasket is of a trapezoidal structure, and a trapezoidal groove matched with the first rubber sealing gasket is formed in the inner cavity of the shell, so that the first rubber sealing gasket and the second rubber sealing gasket can be conveniently matched with each other for use.
In a further embodiment, one end of the outer wall of the shell is fixedly connected with a fixed rod, a second spring is fixedly connected inside the fixed rod, one end of the top of the second spring is slidably connected with a limiting rod, and one end of the top of the limiting rod is inserted into the handle, so that the handle is limited.
In a further embodiment, the gag lever post is in the inside one end fixedly connected with slider of dead lever, the slider diameter is greater than dead lever open-top diameter, the gag lever post top surface is the hexagon structure, the hexagon fluting that suits with the gag lever post is seted up to handle top one end, prescribes a limit to the position of handle through the fluting of gag lever post and handle top one end mutually supporting, prevents that it from receiving reasons such as vibrations and opening, leads to gaseous production to reveal, influences the use of device, when needing to open the handle, makes its extrusion slider move down through pressing down the gag lever post, and slider extrusion second spring is to the inside removal of dead lever, and rotatory handle carries out work again.
In further embodiment, valve body bottom one end joint has the sealed pad of second rubber, screw fixedly connected with bottom flange is passed to valve body bottom one end, bottom flange passes valve body one end extrusion and stacks up on the sealed pad of second rubber, the valve body inner chamber is seted up with the sealed suitable fluting of the sealed pad of second rubber, through using the sealed pad of second rubber for the sealing performance of bottom is better.
In a further embodiment, the connector has been seted up to the valve body lateral wall, the connector is inside to be seted up flutedly, the inside joint of recess has the spring coil, the inside spring coil one end sliding connection that is close to of recess has the sealed pad of third rubber, screw fixedly connected with side flange is passed through to valve body outer wall one end, is connected with bottom gas cylinder structure through bottom flange to extrude the sealed pad of second rubber through bottom flange, the sealed pad of second rubber of being convenient for seals the device, makes the sealed effect of device better, better and gas cylinder interconnect.
In further embodiment, the fluting that suits with the spring coil is seted up to the sealed pad of third rubber, the spring coil joint is inside the fluting on the sealed pad of third rubber, side flange passes valve body one end extrusion on side flange, is connected with outside output pipeline through side flange to through the sealed pad of side flange extrusion third rubber, make the sealed pad joint of third rubber in the inside recess of connector, reach better sealed effect, the use of the device of being convenient for, with external pipeline interconnect.
Preferably, based on the above method for using the cylinder valve with the seal reinforcing structure, the method comprises the following steps:
a1, firstly, installing and fixing a valve body through the bottom and side structures of the valve body;
a2, when the valve body needs to be closed, the handle is rotated to drive the sealing block to descend, the bottom of the sealing block is matched with the sealing ring, the sealing effect is achieved, and the limiting structure on the shell is used for limiting the sealing block;
a3, when the valve body is opened to needs at last, rotatory handle drives sealed piece and moves up, and sealed piece extrudees first spring, and first spring extrudees first rubber seal pad for it extrudees the shell inner wall, reaches sealed effect.
Compared with the prior art, the invention has the beneficial effects that:
when the valve body is closed, the bottom of the sealing block is matched with the sealing ring, so that a sealing effect is achieved, when the valve body is opened, the sealing block extrudes the first spring, the first spring extrudes the first rubber sealing gasket, the first rubber sealing gasket is extruded on the inner wall of the shell, the sealing effect is achieved, gas is prevented from leaking out of the position of the handle, the handle is limited by using the limiting rod, when the valve body is closed, the valve body can be prevented from being opened accidentally, gas leakage is caused, the use of the device is influenced, when the valve body needs to be opened, the limiting rod is enabled to move towards the inside of the fixing rod by pressing the limiting rod, the valve body is convenient to open, the bottom connecting flange is connected with the bottom gas cylinder structure, the side connecting flange is connected with the external output pipeline, the device is convenient to be connected with the gas cylinder and the external output pipeline, a better sealing effect is achieved, and gas leakage is prevented.
Drawings
FIG. 1 is a schematic cross-sectional front view of the present invention;
FIG. 2 is a schematic perspective view of the housing of the present invention;
FIG. 3 is a schematic perspective view of a first rubber gasket of the present invention;
FIG. 4 is a schematic perspective view of a side flange according to the present invention;
fig. 5 is an enlarged view of the structure at position a of the present invention.
In the figure: 1. a valve body; 2. a housing; 3. a handle; 4. a threaded rod; 5. a trapezoidal block; 6. a first rubber packing; 7. a first spring; 8. a sealing block; 9. a seal ring; 10. fixing the rod; 11. a second spring; 12. a limiting rod; 13. a second rubber packing; 14. a bottom connecting flange; 15. a third rubber packing; 16. a spring ring; 17. the side edges are connected with the flanges.
Detailed Description
The following will clearly and completely describe the technical solutions in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All embodiments that can be obtained by a person skilled in the art based on the embodiments of the present invention without any inventive step are within the scope of the present invention.
Example 1
Please refer to fig. 1, fig. 2, fig. 3 and fig. 5, this embodiment provides a gas cylinder valve with a seal reinforcing structure and a sealing method, including a valve body 1, the top of the outer wall of the valve body 1 is connected with a housing 2 through a thread, the housing 2 is connected with a handle 3 in a rotating manner, the handle 3 passes through the housing 2 and a threaded rod 4 fixedly connected with one end of the valve body 1, the threaded rod 4 is connected with the housing 2 through a thread, one end of the bottom of the threaded rod 4 is fixedly connected with a trapezoidal block 5, one end of the bottom of the trapezoidal block 5 is sleeved with a first rubber sealing gasket 6, which is convenient for sealing one end of the handle 3, one end of the threaded rod 4 is sleeved with a first spring 7 through the first rubber sealing gasket 6, one end of the threaded rod 4 passes through a sealing block 8 fixedly connected with one end of the first spring 7, the bottom of the sealing block 8 is clamped on the inner cavity of the valve body 1, which is convenient for sealing the inside of the valve body 1.
Because the gas cylinder valve need be installed on the gas cylinder, and the inside gas pressure of gas cylinder is powerful, reveals easily, often needs better seal structure, if the sealed effect of gas cylinder valve is relatively poor, will take place gas leakage easily, because the inside gas pressure of gas cylinder is powerful, the easy accident that takes place causes other harm such as explosion, conflagration.
In this embodiment, when valve body 1 is closed, through opening handle 3, handle 3 drives threaded rod 4 rotatory, make threaded rod 4 drive 8 bottoms of sealed piece and the mutual extrusion of sealing washer 9, reach sealed effect, when valve body 1 opens, through rotatory handle 3, it shifts up to drive sealed piece 8, extrude first spring 7, first spring 7 extrudees first rubber packing pad 6, make 6 outer walls of first rubber packing pad extrude 2 inner walls of shell, 6 inner walls of first rubber packing pad extrude trapezoidal piece 5, reach sealed effect, prevent that gas from revealing away on handle 3 and the 2 hookup locations of shell, influence the sealed effect of device.
In this embodiment, in order to reach better sealed effect, set up the fluting that suits with sealed piece 8 in 1 inner chamber of valve body, the inside adhesion of fluting has sealing washer 9, sealed piece 8 and sealing washer 9 contact each other, make sealed piece 8 bottom one end sealing performance strengthened, 7 top one end contacts of first spring has first rubber packing pad 6, 7 bottom one end contacts of first spring has sealed piece 8, extrusion through first spring 7, make first rubber packing pad 6 can shift up, 2 inner walls of extrusion shell and trapezoidal piece 5, make sealed effect strengthened.
In order to make first rubber packing 6 more shift up, sealed effect is better, and it has the sealing layer to be close to the 4 one end adhesions of threaded rod at 2 inner chambers of shell, and 6 cross-sections of first rubber packing are trapezium structure, and 2 inner chambers of shell offer the trapezoidal recess that suits with first rubber packing 6, through the cooperation of trapezium structure for it shifts up more, and the joint is inseparabler more, makes sealed effect better.
Example 2
Referring to fig. 1 and fig. 2, a further improvement is made on the basis of embodiment 1:
in order to lock handle 3, when preventing that the valve from closing, prevent that the valve body from receiving the impact or unexpected opening, 2 outer wall one end fixedly connected with dead lever 10 at the casing, the inside fixedly connected with second spring 11 of dead lever, dead lever 10 has gag lever post 12 at 11 top one end sliding connection of second spring, gag lever post 12 top one end is pegged graft on handle 3, gag lever post 12 is in the inside one end fixedly connected with slider of dead lever 10, the slider through 11 extrusion gag lever post 12 bottom one end of second spring removes, the slider diameter is greater than the 10 open-top diameters of dead lever, prevent that the slider from shifting out dead lever 10 open-top, gag lever post 12 top surface is the hexagon structure, the hexagon that suits with gag lever post 12 is seted up to 3 top one end of handle.
The fluting through gag lever post 12 and 3 top one ends of handle mutually supports and prescribes a limit to the position of handle 3, prevents that it from receiving reasons such as vibrations and opening, leads to gaseous production to reveal, influences the use of device, when needing to open handle 3, makes its extrusion slider move down through pressing down gag lever post 12, and slider extrusion second spring 11 removes to dead lever 10 inside, rotates handle 3 again and carries out work.
Example 3
Referring to fig. 1 and fig. 4, a further improvement is made on the basis of embodiment 1:
in order to conveniently connect the valve body 1 and an external structure, a second rubber sealing gasket 13 is clamped at one end of the bottom of the valve body 1, one end of the bottom of the valve body 1 is fixedly connected with a bottom connecting flange 14 through a screw, the bottom connecting flange 14 penetrates through one end of the valve body 1 to be extruded on the second rubber sealing gasket 13, a groove which is suitable for the second rubber sealing gasket 13 is formed in the inner cavity of the valve body 1, a bottom gas cylinder structure is connected through the bottom connecting flange 14, the second rubber sealing gasket 13 is extruded through the bottom connecting flange 14, and a better sealing effect is achieved.
Through having seted up the connector at 1 lateral wall of valve body, the inside recess of having seted up of connector, the inside joint of recess has spring coil 16, the inside close spring coil 16 one end sliding connection of recess has the sealed pad 15 of third rubber, screw fixedly connected with side flange 17 is passed through to 1 outer wall one end of valve body, the sealed pad 15 of third rubber sets up the fluting that suits with spring coil 16, the inside fluting of the sealed pad 15 of third rubber of spring coil 16 joint, side flange 17 passes the 1 one end extrusion of valve body on side flange 17, be connected with outside output pipeline through side flange 17, and extrude the sealed pad 15 of third rubber through side flange 17, make the sealed 15 joints of third rubber in the inside recess of connector, reach better sealed effect, the use of the device of being convenient for.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (9)

1. A cylinder valve with a seal reinforcing structure comprises a valve body (1), and is characterized in that: valve body (1) outer wall top threaded connection has shell (2), it is connected with handle (3) to rotate on shell (2), shell (2) and valve body (1) one end fixedly connected with threaded rod (4) are passed in handle (3), threaded rod (4) and shell (2) threaded connection, threaded rod (4) bottom one end fixedly connected with trapezoidal piece (5), a pot head has first rubber packing pad (6) bottom trapezoidal piece (5), threaded rod (4) pass first rubber packing pad (6) pot head and have first spring (7), threaded rod (4) pass first spring (7) one end fixedly connected with seal block (8), seal block (8) bottom joint is on valve body (1) inner chamber.
2. A cylinder valve having a seal enhancing structure as defined in claim 1, wherein: the fluting that suits with sealed piece (8) is seted up to valve body (1) inner chamber, the inside bonding of fluting has sealing washer (9), sealed piece (8) and sealing washer (9) contact each other, first spring (7) top one end contact has first rubber packing pad (6), first spring (7) bottom one end contact has sealed piece (8).
3. A cylinder valve having a seal enhancing structure as defined in claim 1, wherein: the inner cavity of the shell (2) is close to one end of the threaded rod (4) and is adhered with a sealing layer, the cross section of the first rubber sealing gasket (6) is of a trapezoidal structure, and a trapezoidal groove matched with the first rubber sealing gasket (6) is formed in the inner cavity of the shell (2).
4. A cylinder valve having a seal enhancing structure as defined in claim 1, wherein: the handle is characterized in that a fixing rod (10) is fixedly connected to one end of the outer wall of the shell (2), a second spring (11) is fixedly connected to the inside of the fixing rod (10), a limiting rod (12) is slidably connected to one end of the top of the second spring (11) through the fixing rod (10), and one end of the top of the limiting rod (12) is connected to the handle (3) in an inserting mode.
5. A cylinder valve having a seal enhancing structure as defined in claim 4, wherein: the limiting rod (12) is located at one end of the inside of the fixing rod (10) and is fixedly connected with a sliding block, the diameter of the sliding block is larger than the diameter of an opening at the top of the fixing rod (10), the top surface of the limiting rod (12) is of a hexagonal structure, and a hexagonal groove matched with the limiting rod (12) is formed in one end of the top of the handle (3).
6. A cylinder valve having a seal reinforcement structure according to claim 1, wherein: valve body (1) bottom one end joint has the sealed pad of second rubber (13), screw fixedly connected with bottom flange (14) is passed through to valve body (1) bottom one end, bottom flange (14) pass valve body (1) one end extrusion on the sealed pad of second rubber (13), the fluting that suits mutually with the sealed pad of second rubber (13) is seted up to valve body (1) inner chamber.
7. A cylinder valve having a seal reinforcement structure according to claim 1, wherein: the connector has been seted up to valve body (1) lateral wall, the inside recess that has seted up of connector, the inside joint of recess has spring coil (16), the inside spring coil (16) one end sliding connection that is close to of recess has the sealed pad (15) of third rubber, screw fixedly connected with side flange (17) are passed through to valve body (1) outer wall one end.
8. A cylinder valve having a seal enhancing structure as defined in claim 7, wherein: the fluting that suits with spring ring (16) is seted up in third rubber packing pad (15), spring ring (16) joint is inside the fluting on third rubber packing pad (15), side flange (17) pass valve body (1) one end extrusion on side flange (17).
9. A method of sealing a cylinder valve having a seal-reinforcing structure, using the cylinder valve having a seal-reinforcing structure according to claim 1, characterized in that: the method comprises the following steps:
a1, firstly, installing and fixing a valve body (1) through the bottom and side structures of the valve body (1);
a2, when the valve body (1) needs to be closed, the handle (3) is rotated to drive the sealing block (8) to descend, the bottom of the sealing block (8) is matched with the sealing ring (9) to achieve a sealing effect, and the limiting structure on the shell (2) is used for limiting the sealing block;
a3, when valve body (1) was opened to needs at last, rotatory handle (3) drove sealed piece (8) and shifts up, and sealed piece (8) extrude first spring (7), and first spring (7) extrude first rubber packing pad (6) for it extrudees shell (2) inner wall, reaches sealed effect.
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Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2977294A1 (en) * 2011-06-28 2013-01-04 Senior Aerospace Ermeto Gas cylinder valve, has opening/closing state indicator engaged with hand wheel to indicate state corresponding to lowered or raised position of wheel and of operating rod at which valve is in closed or open position
CA2918436A1 (en) * 2015-01-20 2016-07-20 Luxfer Canada Limited Gas cylinder valve
CN208090308U (en) * 2018-04-11 2018-11-13 宁波金佳佳阀门有限公司 A kind of liquefied petroleum gas cylinder valve gas outlet secondary seal structure
CN210088087U (en) * 2019-04-20 2020-02-18 云南七雄新能源气体有限公司 Pressure relief valve
CN210637525U (en) * 2019-09-07 2020-05-29 温州兴南环保科技有限公司 Biogas valve with high sealing performance
CN211924950U (en) * 2020-01-03 2020-11-13 浙江他山流体控制科技有限公司 Liquefied petroleum gas cylinder valve
CN112212022A (en) * 2020-10-27 2021-01-12 杨波 Gas cylinder valve
CN214744962U (en) * 2020-10-27 2021-11-16 科哲(上海)阀门有限公司 Special gas cylinder valve
CN214888903U (en) * 2021-06-18 2021-11-26 陈华聪 Fire-fighting gas cylinder switch control valve with good tightness
CN216200665U (en) * 2021-10-30 2022-04-05 浙江铭仕兴新暖通科技有限公司 Quick opening and closing cylinder valve

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2977294A1 (en) * 2011-06-28 2013-01-04 Senior Aerospace Ermeto Gas cylinder valve, has opening/closing state indicator engaged with hand wheel to indicate state corresponding to lowered or raised position of wheel and of operating rod at which valve is in closed or open position
CA2918436A1 (en) * 2015-01-20 2016-07-20 Luxfer Canada Limited Gas cylinder valve
CN208090308U (en) * 2018-04-11 2018-11-13 宁波金佳佳阀门有限公司 A kind of liquefied petroleum gas cylinder valve gas outlet secondary seal structure
CN210088087U (en) * 2019-04-20 2020-02-18 云南七雄新能源气体有限公司 Pressure relief valve
CN210637525U (en) * 2019-09-07 2020-05-29 温州兴南环保科技有限公司 Biogas valve with high sealing performance
CN211924950U (en) * 2020-01-03 2020-11-13 浙江他山流体控制科技有限公司 Liquefied petroleum gas cylinder valve
CN112212022A (en) * 2020-10-27 2021-01-12 杨波 Gas cylinder valve
CN214744962U (en) * 2020-10-27 2021-11-16 科哲(上海)阀门有限公司 Special gas cylinder valve
CN214888903U (en) * 2021-06-18 2021-11-26 陈华聪 Fire-fighting gas cylinder switch control valve with good tightness
CN216200665U (en) * 2021-10-30 2022-04-05 浙江铭仕兴新暖通科技有限公司 Quick opening and closing cylinder valve

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