Automatic stop valve with filtering and purifying functions

Abstract

The utility model discloses an automatic stop valve with filtering and purifying functions, which belongs to the technical field of fuel gas stop valves and comprises a stop valve body, a valve shaft is embedded in the stop valve body, a control component is sleeved on the surface of the valve shaft, one side of the stop valve body is connected with a gas inlet pipe, and a filter is embedded in the gas inlet pipe. According to the air filter, the detachable assembly is arranged, the clamping block is moved to be separated from the clamping groove, then the mounting ring is taken out from the air inlet pipe, and the filter can be detached, so that the filter can be cleaned conveniently, and the filtering effect of the air filter is better; according to the automatic stop valve, the control assembly is arranged, the electric push rod drives the rack to move, under meshing transmission between the rack and the gear, the fixing sleeve limits the gear, the gear can drive the valve plug to rotate through the valve shaft to adjust and control opening and closing of the automatic stop valve, opening and closing control is convenient, the using effect is better, and the limiting rod can play a role in limiting the angle of the valve plug.

Description

Technical Field

[0001] The utility model belongs to the technical field of gas cut-off valves, and in particular relates to an automatic cut-off valve with filtering and purification functions. Background Art

[0002] An automatic shut-off valve is a valve that can automatically cut off the gas supply in the event of an emergency such as gas overflow or a sudden increase in gas supply pressure to produce overpressure. It includes a valve body with an air inlet pipe, a valve cover with an air outlet pipe, a valve core, a valve stem, a handle and a flow limiting device.

[0003] Chinese patent application No. 201821077827.2 discloses an automatic shut-off valve with filtering and purifying function, including an upper valve cover and a valve body, a notch is opened in the middle of the front of the upper valve cover, a side cylinder is bolted on one side wall of the upper valve cover, the top of the side cylinder is fixedly connected with an ejector rod, the bottom of the side cylinder is provided with an air pipe, the top of the valve body is fixedly connected to the upper valve cover through a bracket, and the inside of the valve body is fixedly connected with a valve plug through a seat. The utility model device has a reasonable structural design, and is convenient for mechanically controlling the operation of the shut-off valve by providing a side cylinder and an ejector rod, and is convenient for filtering and treating natural gas in advance by providing a filter, reducing the risk of device damage, and is convenient for closing the valve plug by providing a rotating sleeve and controlling the valve plug by spring torque, with fast closing speed and high safety, and is convenient for internal cleaning and loading and unloading by providing a glass fiber bundle, which enhances the filtering and purifying effect of the gas, and is convenient for internal cleaning and loading and unloading, and is convenient for providing a sealing ring, which enhances the airtightness between the intake pipe and the filter.

[0004] In the above-mentioned public patent, the filter plays a filtering role inside the intake pipe. The filter is prone to clogging the air holes after long-term use. It is inconvenient to remove the filter for cleaning and replacement, and the use effect is poor. After the side cylinder control card moves up and disengages from the rotating sleeve, the valve plug rotates under the torsion of the spring to complete the cut-off, and the rotating sleeve can no longer be controlled to rotate to reset the valve plug, resulting in poor use effect. Utility Model Content

[0005] In order to solve the problems raised in the above background technology, the utility model provides an automatic cut-off valve with filtering and purifying function, which has the characteristics of stable filtering and good use effect.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an automatic shut-off valve with filtering and purification function, comprising a shut-off valve body, a valve shaft is embedded in the interior of the shut-off valve body, a control component is sleeved on the surface of the valve shaft, a valve plug is connected to the bottom of the valve shaft, one side of the shut-off valve body is connected to an air inlet pipe, a filter is embedded in the interior of the air inlet pipe, a disassembly component is arranged on the side of the filter, the other side of the shut-off valve body is connected to an air outlet pipe, and flanges are installed on the side ends of the air outlet pipe and the air inlet pipe.

[0007] Preferably, the disassembly component includes an auxiliary component, a clamping block, a mounting ring, a second spring, a through groove and a clamping slot, wherein the side of the filter is connected to the mounting ring, the interior of the mounting ring is provided with two through grooves, the interior of the second spring is embedded in the through groove, the side of the second spring is connected to the clamping block, the inner wall surface of the flange is provided with a clamping slot, the surfaces of the outlet pipe and the inlet pipe are both covered with auxiliary components, and the filter and the flange are in a split structure.

[0008] Preferably, the through slot and the clamping slot are both L-shaped structures, and the surface of the clamping block is tightly fitted with the inner walls of the through slot and the clamping slot.

[0009] Preferably, the auxiliary component includes a fixing ring, a spring 1 and a protective cover, wherein the surfaces of the outlet pipe and the inlet pipe are both covered with a fixing ring, the side of the fixing ring is connected to a spring 1, the side of the spring 1 is connected to a protective cover, and the inner wall of the protective cover fits with the side of the flange.

[0010] Preferably, the control component includes a gear, a fixed sleeve, an electric push rod and a rack, wherein the surface of the valve shaft is covered with a gear, a fixed sleeve is provided on the top of the cut-off valve body, an electric push rod is installed on the side of the fixed sleeve, and the side of the electric push rod is connected to the rack.

[0011] Preferably, the rack and the side of the gear are meshed with each other, the top of the gear is connected to a limiting rod, and the top of the fixing sleeve is provided with a quarter-circular ring groove.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model sets a disassembly component, moves the card block to separate from the card slot, and then takes out the installation ring from the air intake pipe to remove the filter, which is convenient for cleaning the filter so that the filtering effect of the device is better. Under the elastic force of the second spring inside the through slot, the card block and the card slot are tightly plugged together to make the filter 4 firmly installed.

[0014] 2. The utility model sets a control component, and the electric push rod drives the rack to move. Under the meshing transmission between the rack and the gear, the fixed sleeve limits the gear. The gear can drive the valve plug to rotate through the valve shaft to adjust the switch of the automatic shut-off valve. The switch control is convenient to use and has better effect. The limit rod can limit the angle of the valve plug. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is the front view of the utility model;

[0016] Figure 2 This is the front view of the control component of the utility model;

[0017] Figure 3 This is a front view of the disassembled components of the utility model;

[0018] Figure 4 It is the front view of the through slot of the utility model.

[0019] In the figure: 1. outlet pipe; 2. cut-off valve body; 3. disassembly assembly; 31. auxiliary assembly; 311. fixing ring; 312. spring 1; 313. protective cover; 32. clamping block; 33. mounting ring; 34. spring 2; 35. through groove; 36. clamping groove; 4. filter; 5. flange; 6. intake pipe; 7. control assembly; 71. gear; 72. fixing sleeve; 73. electric push rod; 74. rack; 75. limit rod; 8. valve shaft; 9. valve plug. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Example 1

[0022] See also Figure 1-4 The utility model provides the following technical solutions: an automatic shut-off valve with filtering and purifying function, comprising a shut-off valve body 2, a valve shaft 8 is embedded in the shut-off valve body 2, a control component 7 is sleeved on the surface of the valve shaft 8, a valve plug 9 is connected to the bottom of the valve shaft 8, one side of the shut-off valve body 2 is connected to an air inlet pipe 6, a filter 4 is embedded in the air inlet pipe 6, a disassembly component 3 is arranged on the side of the filter 4, the other side of the shut-off valve body 2 is connected to an air outlet pipe 1, and flanges 5 are installed on the side ends of the air outlet pipe 1 and the air inlet pipe 6.

[0023] Specifically, the disassembly component 3 includes an auxiliary component 31, a clamping block 32, a mounting ring 33, a second spring 34, a through groove 35 and a clamping groove 36. The side of the filter 4 is connected to the mounting ring 33, and two through grooves 35 are provided inside the mounting ring 33. The second spring 34 is embedded inside the through groove 35, and the side of the second spring 34 is connected to the clamping block 32. The inner wall surface of the flange 5 is provided with a clamping groove 36. The surfaces of the outlet pipe 1 and the inlet pipe 6 are both covered with the auxiliary component 31, and the filter 4 and the flange 5 are in a split structure.

[0024] By adopting the above technical solution, the movable block 32 is separated from the slot 36, and then the mounting ring 33 is taken out from the air intake pipe 6 to remove the filter 4, which is convenient for cleaning the filter 4 to achieve a better filtering effect of the device. The movable block 32 is separated from the slot 36, and then the mounting ring 33 is taken out from the air intake pipe 6 to remove the filter 4, which is convenient for cleaning the filter 4 to achieve a better filtering effect of the device.

[0025] Specifically, the clamping block 32 and the clamping slot 36 are both L-shaped structures, and the surface of the clamping block 32 is tightly fitted with the inner walls of the through slot 35 and the clamping slot 36 .

[0026] By adopting the above technical solution, the L-shaped block 32 is easy to be moved by manual control, and the surface of the block 32 is tightly fitted with the inner walls of the through slot 35 and the slot 36, so that the structural stability is higher.

[0027] Specifically, the auxiliary component 31 includes a fixing ring 311, a spring 312 and a protective cover 313. The surfaces of the outlet pipe 1 and the inlet pipe 6 are both covered with a fixing ring 311. The side of the fixing ring 311 is connected to a spring 312. The side of the spring 312 is connected to a protective cover 313. The inner wall of the protective cover 313 fits with the side of the flange 5.

[0028] By adopting the above technical solution, the protective cover 313 can be sleeved on the outer surface of the flange 5 under the elastic force of the spring 312 on the surface of the fixing ring 311. The protective cover 313 plays an isolating and protective role, which can make the device safer to connect and use.

[0029] When this embodiment is used, the shut-off valve body 2 is connected and installed with the flange 5 at the side end of the air inlet pipe 6 through the air outlet pipe 1. Under the elastic force of the spring 1 312 on the surface of the fixing ring 311, the protective cover 313 can be sleeved on the outer surface of the flange 5. The protective cover 313 plays an isolating and protective role, which can make the device safer to connect and use. The filter 4 inside the air inlet pipe 6 can filter the gas. The movable block 32 is separated from the card slot 36, and then the mounting ring 33 is taken out from the air inlet pipe 6 to remove the filter 4, which is convenient for cleaning the filter 4 to improve the filtering effect of the device. Under the elastic force of the spring 2 34 inside the through groove 35, the block 32 and the card slot 36 are tightly plugged together to make the filter 4 firmly installed. The valve shaft 8 drives the valve plug 9 to rotate to adjust the switch of the automatic shut-off valve.

[0030] Example 2

[0031] The difference between this embodiment and embodiment 1 is that the control component 7 includes a gear 71, a fixed sleeve 72, an electric push rod 73 and a rack 74, the surface of the valve shaft 8 is sleeved with the gear 71, the top of the cut-off valve body 2 is provided with a fixed sleeve 72, the side of the fixed sleeve 72 is installed with an electric push rod 73, and the side of the electric push rod 73 is connected to the rack 74.

[0032] Specifically, the rack 74 is meshed with the side of the gear 71 , the top of the gear 71 is connected to a limiting rod 75 , and the top of the fixing sleeve 72 is provided with a quarter-circular ring groove.

[0033] By adopting the above technical solution, the electric push rod 73 is started to drive the rack 74 to move. Under the meshing transmission between the rack 74 and the gear 71, the fixed sleeve 72 limits the gear 71. The gear 71 can drive the valve plug 9 to rotate through the valve shaft 8 to adjust the switch of the automatic shut-off valve. The switch control is convenient to use and has a better effect. The limit rod 75 can limit the angle of the valve plug 9.

[0034] When this embodiment is in use, the electric push rod 73 is started to drive the rack 74 to move. Under the meshing transmission between the rack 74 and the gear 71, the fixed sleeve 72 limits the gear 71. The gear 71 can drive the valve plug 9 to rotate through the valve shaft 8 to adjust the switch of the automatic shut-off valve. The switch control is convenient to use and has a better effect. The limit rod 75 can limit the angle of the valve plug 9.

[0035] The electric push rod 73 in the present invention is an existing disclosed technology, and the selected model is ANT-26.

[0036] The structure and use principle of the outlet pipe 1, the shut-off valve body 2, the filter 4, the flange 5, the air inlet pipe 6, the valve shaft 8 and the valve plug 9 in the utility model have been disclosed in Chinese patent application No. 201821077827.2 which discloses an automatic shut-off valve with a filtering and purification function. Its working principle is that the shut-off valve body 2 is installed and used through the outlet pipe 1 and the flange 5 at the side end of the air inlet pipe 6. The filter 4 inside the air inlet pipe 6 can filter the gas. The switch of this automatic shut-off valve can be controlled by rotating the valve shaft 8 to drive the valve plug 9 to rotate.

[0037] Working principle and use process of the utility model: When the utility model is used, the cut-off valve body 2 is connected and installed with the flange 5 at the side end of the air inlet pipe 6 through the air outlet pipe 1. Under the elastic force of the spring 312 on the surface of the fixing ring 311, the protective cover 313 can be sleeved on the outer surface of the flange 5. The protective cover 313 plays an isolating and protective role, which can make the device safer to connect and use. The filter 4 inside the air inlet pipe 6 can filter the gas. The movable block 32 is separated from the card slot 36, and then the installation ring 33 is taken out from the air inlet pipe 6 to remove the filter. The filter 4 is convenient for cleaning the filter 4 so that the filtering effect of the device is better. Under the elastic force of the spring 2 34 inside the through groove 35, the block 32 and the groove 36 are tightly plugged together to make the filter 4 firmly installed. The electric push rod 73 is started to drive the rack 74 to move. Under the meshing transmission between the rack 74 and the gear 71, the fixed sleeve 72 limits the gear 71. The gear 71 can drive the valve plug 9 to rotate through the valve shaft 8 to adjust the switch of the automatic shut-off valve. The switch control is convenient to use and has a better effect. The limit rod 75 can limit the angle of the valve plug 9.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic shut-off valve with filtering and purification function, comprising a shut-off valve body, characterized in that: A valve shaft is embedded in the interior of the cut-off valve body, a control component is sleeved on the surface of the valve shaft, a valve plug is connected to the bottom of the valve shaft, an air inlet pipe is connected to one side of the cut-off valve body, a filter is embedded in the air inlet pipe, a disassembly component is arranged on the side of the filter, an air outlet pipe is connected to the other side of the cut-off valve body, and flanges are installed on the side ends of the air outlet pipe and the air inlet pipe; The disassembly assembly includes an auxiliary assembly, a clamping block, a mounting ring, a second spring, a through slot and a clamping slot, wherein the side of the filter is connected with the mounting ring, the interior of the mounting ring is provided with two through slots, the interior of the through slot is embedded with a second spring, the side of the second spring is connected with a clamping block, the inner wall surface of the flange is provided with a clamping slot, the surfaces of the outlet pipe and the inlet pipe are both covered with auxiliary assemblies, and the filter and the flange are in a split structure; The control component includes a gear, a fixed sleeve, an electric push rod and a rack, wherein the surface of the valve shaft is covered with a gear, the top of the cut-off valve body is provided with a fixed sleeve, the side of the fixed sleeve is installed with an electric push rod, and the side of the electric push rod is connected with a rack.

2. The automatic shut-off valve with filtering and purifying function according to claim 1 is characterized in that: The through slot and the clamping slot are both L-shaped structures, and the surface of the clamping block is tightly fitted with the inner walls of the through slot and the clamping slot.

3. The automatic shut-off valve with filtering and purifying function according to claim 1 is characterized in that: The auxiliary component includes a fixing ring, a spring 1 and a protective cover, wherein the surfaces of the air outlet pipe and the air inlet pipe are both covered with fixing rings, the side of the fixing ring is connected to the spring 1, the side of the spring 1 is connected to the protective cover, and the inner wall of the protective cover is in contact with the side of the flange.

4. The automatic shut-off valve with filtering and purifying function according to claim 1 is characterized in that: The rack is meshed with the side of the gear, the top of the gear is connected with a limit rod, and the top of the fixing sleeve is provided with a quarter-circular ring groove.

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