CN221145347U - Quick detach formula whole sealing gasket structure and gas pressure regulator - Google Patents

Abstract

The utility model discloses a quick-dismantling type integral sealing gasket structure which comprises a sealing gasket, a mounting disc and a connecting structure, wherein the bottom of the mounting disc is provided with a mounting groove, and the sealing gasket is arranged in the mounting groove and is detachably connected with the mounting disc; the connecting structure comprises a lower connecting body arranged at the top of the mounting plate and an upper connecting body detachably connected with the lower connecting body, wherein the lower connecting body comprises a base and a connecting rod, and the upper connecting body comprises a connecting sleeve and a connector; be equipped with the external screw thread on the connecting rod, be equipped with the internal screw thread with the external screw thread adaptation on the connecting rod in the adapter sleeve, connecting rod and adapter sleeve threaded connection still disclose a gas pressure regulator, have solved current pressure regulator when changing the sealed pad in the pressure regulator, need change the whole structure that has sealed pad in the pressure regulator to the sealed pad change process that leads to is complicated, problem that the replacement cost is high.

Description

Quick detach formula whole sealing gasket structure and gas pressure regulator

Technical Field

The utility model relates to the technical field of fuel gas pressure regulating equipment, in particular to a quick-dismantling type integral sealing gasket structure and a fuel gas pressure regulator.

Background

The direct acting gas pressure regulator is gas pressure regulating equipment which is specially suitable for regulating and stabilizing pressure in a gas transmission and distribution system, and is widely applied to gas transmission and distribution engineering; the gas outlet pressure regulator has the function of automatically regulating the gas outlet pressure to ensure that the gas outlet pressure is stabilized in a certain pressure range so as to meet the pressure value required by a user; the upper sealing gasket of the pressure regulator is a rubber piece, can be repeatedly contacted and sealed with the valve, and can be damaged after long-time use.

At present, a sealing gasket in a gas pressure regulator is usually vulcanized with a valve clack body, an opening is arranged in the middle of the sealing gasket, and the sealing gasket needs to be replaced integrally when damaged, so that the replacement is complex and the replacement cost is high; and the sealing gasket is provided with an opening in the middle, so that the sealing gasket has poor sealing reliability, and when the vulcanization quality is poor, the phenomenon of air leakage can occur frequently.

The application number is: CN00223499.8, publication number CN2432411Y discloses a gas pressure regulator, wherein the main pressure regulator includes a pressure regulator tray and a pressure regulator film which are horizontally installed, a pressure spring at the upper end and a pressure spring at the lower end of the pressure regulator film, an upper ejector rod and a horizontal connecting rod which are connected with the pressure regulator film and a lower ejector rod with a sealing gasket and positioned on a valve port in a manifold, but when the sealing gasket in the pressure regulator is replaced, the whole structure with the sealing gasket in the pressure regulator is required to be replaced, so that the replacement process of the sealing gasket is complex, and the replacement cost is high.

Disclosure of utility model

Based on the above, the utility model provides a quick-dismantling type integral sealing gasket structure and a gas pressure regulator, which solve the problems that the whole structure with the sealing gasket in the pressure regulator needs to be replaced when the sealing gasket in the pressure regulator is replaced at present, so that the sealing gasket replacement process is complex and the replacement cost is high.

The technical scheme of the utility model is as follows:

The utility model provides a quick detach formula whole sealing gasket structure, includes sealing gasket, mounting disc and connection structure, sealing gasket is discoid, the terminal surface of sealing gasket's top and bottom is the plane form, the bottom of mounting disc is equipped with the mounting groove that is used for installing sealing gasket, sealing gasket installs in the mounting groove, and can dismantle with the mounting disc and be connected;

The connecting structure comprises a lower connecting body arranged at the top of the mounting plate and an upper connecting body detachably connected with the lower connecting body, the lower connecting body comprises a base and a connecting rod, the base is fixedly connected with the top of the mounting plate, the connecting rod is fixedly connected with the top of the base, the upper connecting body comprises a connecting sleeve and a connector, and the connector is fixedly connected with the top of the connecting sleeve;

The connecting rod is provided with external threads, the connecting sleeve is internally provided with internal threads matched with the external threads on the connecting rod, and the connecting rod is in threaded connection with the connecting sleeve through the matching of the external threads and the internal threads.

Preferably, a pair of limiting sliding sheets are arranged on the top end face of the sealing gasket, a limiting sliding groove matched with the limiting sliding sheets is arranged in the mounting groove, and the sealing gasket is detachably connected with the mounting disc through the matching of the limiting sliding sheets and the limiting sliding grooves.

Preferably, a pair of limiting sliding pieces are arranged on the top end face of the sealing gasket, a pair of limiting sliding grooves are arranged in the mounting groove, and the limiting sliding pieces and the limiting sliding grooves are respectively located on the circumferences of concentric circles with different diameters, wherein the limiting sliding pieces are located on the circumferences of circles with larger diameters, the limiting sliding grooves are located on the circumferences of circles with smaller diameters, limiting positions are arranged at the end parts of the limiting sliding grooves, and the limiting positions extend to the circumferences of circles with larger diameters.

The utility model provides a gas pressure regulator, includes a quick detach formula whole sealed pad structure, still includes pressure regulator main part, safe cutting device, air-vent valve body, import ball valve and export ball valve, import ball valve, air-vent valve body and export ball valve communicate in proper order and set up, be equipped with the gas passageway in the air-vent valve body, be equipped with the division board in the gas passageway, the division board separates the gas passageway into inlet channel and outlet channel, be equipped with the valve port on the division board, valve port department can dismantle and be connected with communicating pipe, communicating pipe is used for intercommunication inlet channel and outlet channel.

Preferably, the voltage regulator main body comprises a voltage regulating shell with a cavity inside, and a membrane component, a first spring, an intermediate connector and a lever arm, wherein the membrane component, the first spring, the intermediate connector and the lever arm are arranged in the cavity of the voltage regulating shell, the voltage regulating shell is divided into an upper shell and a lower shell, the upper shell and the lower shell are detachably connected, the membrane component is arranged between the upper shell and the lower shell, the cavity in the voltage regulating shell is divided into an upper cavity and a lower cavity, the first spring is arranged above the membrane component, one end of the first spring is connected with the upper shell, the intermediate connector is arranged at the center of the membrane component, the bottom of the intermediate connector is rotationally connected with one end of the lever arm, and the lever arm and the lower shell are rotationally connected through a lever pin.

Preferably, one end of the bottom of the lower shell is detachably connected with the pressure regulating valve body, a sliding notch is formed in the joint of the lower shell and the pressure regulating valve body, the sliding notch is matched with the communicating pipe, the upper connector is arranged in the sliding notch and is in sliding fit with the sliding notch, the other end of the lever arm is rotationally connected with the connector through a rotating pin, one end of the lower connector, which is in threaded connection with the upper connector, is positioned in the sliding notch, and the base, the mounting disc and the sealing gasket are positioned in an air outlet channel in the pressure regulating valve body and are matched with the communicating pipe.

Preferably, a first sealing ring is arranged at the joint of the lower shell and the pressure regulating valve body.

Preferably, a connecting port is arranged at the joint of the lower shell and the pressure regulating valve body, the connecting port is arranged at one side of the sliding notch, and the connecting port is used for connecting the lower cavity and the air outlet channel.

Preferably, the safety cut-off device comprises a shell, a piston, a movable rod, a plug head, a second spring and a check valve, wherein one end of the shell is detachably connected with the pressure regulating valve body, an installation cavity is formed in the shell, the piston, the movable rod and the second spring are arranged in the installation cavity, the piston separates the installation cavity into an air storage cavity and a sliding cavity, the piston is arranged at the bottom of the sliding cavity, a sliding groove matched with the piston is formed in the side wall of the sliding cavity, the outer side wall of the piston is located in the sliding groove and is in sliding fit with the sliding groove, the movable rod is in sealing connection with the sliding groove, the movable rod is arranged at the top of the piston, one end of the movable rod penetrates through the pressure regulating valve body to extend into the air inlet channel, the movable rod is in sliding fit with the pressure regulating valve body, the sealing connection is achieved, the plug head is arranged at the end of one end of the movable rod located in the air inlet channel and is matched with the communicating pipe, the second spring is sleeved outside the movable rod, one end of the second spring is connected with the pressure regulating valve body, the other end of the piston is connected with the piston, one end of the check valve is communicated with the air outlet channel in the air storage cavity through a pipeline, the other end of the air storage cavity is communicated with the air storage cavity through the pipeline, and the air outlet cavity in the air storage cavity, one end of the air cavity is communicated with the air cavity, and one end runs through the air through the pipeline and the air in the air channel and the air channel.

Preferably, a second sealing ring is arranged at the joint of the shell and the pressure regulating valve body.

Preferably, two ends of the check valve are respectively connected with two pipelines in a flange mode, and the two pipelines are respectively connected to the pressure regulating valve body and the shell in a sealing mode.

Preferably, a gas release valve communicated with the gas storage cavity is arranged at the bottom of the shell.

Preferably, the gas release valve is fixedly connected with the shell, and the joint is sealed.

Preferably, a first pressure gauge is arranged at one end of the air inlet channel of the pressure regulating valve body, a second pressure gauge is arranged at one end of the air outlet channel of the pressure regulating valve body, an emergency release valve is arranged at one end of the air outlet channel of the pressure regulating valve body, and the emergency release valve is communicated with the air outlet channel.

Preferably, the first pressure gauge and the second pressure gauge are detachably connected with the pressure regulating valve body respectively, and the joint is subjected to sealing treatment.

Preferably, the inlet ball valve is connected with one side flange of the air inlet channel of the pressure regulating valve body, and the outlet ball valve is connected with one side flange of the air outlet channel of the pressure regulating valve body.

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

When the sealing gasket needs to be replaced, the mounting disc is rotated, the lower connector fixedly connected with the mounting disc is driven to rotate, the lower connector is separated from the upper connector, the mounting disc and the lower connector are detached, the sealing gasket installed in the mounting groove at the bottom of the mounting disc is detached, the sealing gasket is replaced by a new sealing gasket, the lower connector corresponds to the upper connector, then the mounting disc is rotated, and the lower connector is connected with the upper connector, so that the replacement of the sealing gasket is completed.

Compared with the prior art, the utility model has the advantages of quick disassembly and assembly, stable connection and reduced use cost.

The problem of current voltage regulator when changing the sealed pad in the voltage regulator, need to change the whole structure that has sealed pad in the voltage regulator to the sealed pad replacement process that leads to is complicated, replacement cost is high is solved.

Drawings

FIG. 1 is a schematic diagram showing a quick-release type integral gasket structure and a partial cross-sectional structure of a gas pressure regulator according to an embodiment of the present utility model;

FIG. 2 is a schematic view of a quick release integral gasket structure according to an embodiment of the present utility model;

FIG. 3 is a schematic view of a gasket according to an embodiment of the present utility model;

FIG. 4 is a schematic view of a mounting plate according to an embodiment of the present utility model;

FIG. 5 is a schematic view of the structure of the lower connector according to the embodiment of the present utility model;

FIG. 6 is a schematic view of the structure of the upper connector according to the embodiment of the present utility model;

FIG. 7 is a schematic diagram showing a quick-release type integral gasket structure and a partial cross-sectional structure of a gas pressure regulator according to an embodiment of the present utility model;

FIG. 8 is a schematic view of the bottom structure of a mounting plate according to an embodiment of the present utility model;

Reference numerals illustrate:

10-gasket, 11-mounting disc, 12-connection structure, 100-mounting groove, 101-lower connector, 102-upper connector, 103-base, 104-connection rod, 105-connection sleeve, 106-connection head, 107-limit slide, 108-limit slide, 109-limit, 20-regulator body, 200-pressure regulating housing, 201-diaphragm assembly, 202-first spring, 203-intermediate connector, 204-lever arm, 205-upper housing, 206-lower housing, 207-upper cavity, 208-lower cavity, 209-lever pin, 210-slide slot, 211-rotation pin, 212-connection port, 30-safety shut-off device, 300-housing, 301-piston, 302-movable rod, 303-plug head, 304-second spring, 305-check valve, 306-gas storage cavity, 307-slide cavity, 308-slide slot, 309-gas release valve, 310-first pressure gauge, 311-second pressure gauge, 312-emergency release valve, 40-pressure regulating housing, 400-ball valve, 401-gas inlet channel, 402-outlet channel, 402-ball valve, 403-outlet channel, 212-connection port, 30-safety shut-off device, 300-housing, 301-piston, 302-movable rod, 303-plug head, 304-second spring, sealing ring, 60-inlet port, and sealing ring.

Detailed Description

Embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.

Examples:

As shown in fig. 2 to 6, in order to solve the above-mentioned problems, the present embodiment discloses a quick-dismantling type integral gasket structure, which comprises a gasket 10, a mounting plate 11 and a connecting structure 12, wherein the gasket 10 is disc-shaped, the end surfaces of the top and the bottom of the gasket 10 are both planar, the bottom of the mounting plate 11 is provided with a mounting groove 100 for mounting the gasket 10, and the gasket 10 is mounted in the mounting groove 100 and detachably connected with the mounting plate 11;

The connecting structure 12 comprises a lower connector 101 arranged at the top of the mounting plate 11 and an upper connector 102 detachably connected with the lower connector 101, the lower connector 101 comprises a base 103 and a connecting rod 104, the base 103 is fixedly connected with the top of the mounting plate 11, the connecting rod 104 is fixedly connected with the top of the base 103, the upper connector 102 comprises a connecting sleeve 105 and a connector 106, and the connector 106 is fixedly connected with the top of the connecting sleeve 105;

The connecting rod 104 is provided with external threads, the connecting sleeve 105 is internally provided with internal threads matched with the external threads on the connecting rod 104, and the connecting rod 104 is in threaded connection with the connecting sleeve 105 through the matching of the external threads and the internal threads.

When the gasket 10 needs to be replaced, the mounting plate 11 is rotated, and then the lower connector 101 fixedly connected with the mounting plate 11 is driven to rotate, so that the lower connector 101 is separated from the upper connector 102, the mounting plate 11 and the lower connector 101 are detached, the gasket 10 installed in the mounting groove 100 at the bottom of the mounting plate 11 is detached, the gasket 10 is replaced by a new gasket 10, the lower connector 101 corresponds to the upper connector 102, then the mounting plate 11 is rotated, and the lower connector 101 is connected with the upper connector 102, so that the replacement of the gasket 10 is completed.

Compared with the prior art, the utility model has the advantages of quick disassembly and assembly, stable connection and reduced use cost.

The problem of current voltage regulator when changing the sealed pad 10 in the voltage regulator, need to change the whole structure that has sealed pad 10 in the voltage regulator to the sealed pad 10 replacement process that leads to is complicated, and the replacement cost is high is solved.

In order to detach and install the sealing gasket 10 more quickly, this embodiment is modified on the basis of the foregoing embodiment, and is different from the foregoing embodiment in that a pair of limiting sliding pieces 107 are disposed on the top end surface of the sealing gasket 10, a limiting sliding groove 108 that is disposed in cooperation with the limiting sliding pieces 107 is disposed in the mounting groove 100, and the sealing gasket 10 is detachably connected with the mounting disc 11 through cooperation between the limiting sliding pieces 107 and the limiting sliding grooves 108.

When the sealing gasket 10 is installed, the sealing gasket 10 can be installed only by corresponding the limiting sliding piece 107 to the limiting sliding groove 108 in the installation groove 100 and then rotating the sealing gasket 10 to the other end of the limiting sliding groove 108; when the sealing gasket 10 is dismounted, the sealing gasket 10 can be dismounted only by reversely rotating the sealing gasket 10 to one end of the limit chute 108.

As shown in fig. 8, in order to make the connection between the gasket 10 and the mounting plate 11 more stable, this embodiment is modified on the basis of the above embodiment, and is different from the above embodiment in that a pair of limiting sliding pieces 107 are provided on the top end surface of the gasket 10, a pair of limiting sliding pieces 108 are provided in the mounting groove 100, the limiting sliding pieces 107 and the limiting sliding pieces 108 are respectively located on the circumferences of concentric circles with different diameters, where the limiting sliding pieces 107 are located on the circumference of a circle with a larger diameter, the limiting sliding pieces 108 are located on the circumference of a circle with a smaller diameter, and a limiting position 109 is provided at the end of the limiting sliding pieces 108, and the limiting position 109 extends to the circumference of the circle with a larger diameter.

Wherein the circumference of the larger diameter circle is a first circumference on which the center of the limit slide 107 is located when the gasket 10 is mounted in the mounting plate; the circumference with the smaller diameter is a second circumference, the limit sliding groove 108 is arranged on the second circumference, after the sealing gasket 10 is bent by hand, the middle part of the sealing gasket 10 is arc-shaped, and the limit sliding sheet 107 can be clamped into the limit sliding groove 108 and can slide along the limit sliding groove 108; the diameter of the first circumference is 2-5mm larger than the diameter of the second circumference.

When the sealing gasket 10 is installed, the sealing gasket 10 needs to be bent by a certain angle, so that the limiting sliding sheet 107 can be clamped in the limiting sliding groove 108, then the sealing gasket 10 is rotated, the limiting sliding sheet 107 slides to the limiting position 109 at the end part of the limiting sliding groove 108, then external force applied to the sealing gasket 10 is canceled, and when the sealing gasket 10 is restored to be disc-shaped, the limiting sliding sheet 107 slides to the outer side into the limiting position 109, and then the sealing gasket is limited by the limiting position 109.

When the sealing gasket 10 is dismounted, the sealing gasket 10 needs to be bent at a certain angle, so that the limiting sliding sheet 107 slides out from the limiting position 109, and the sealing gasket 10 is reversely rotated to enable the limiting sliding sheet 107 to slide to the initial position of the limiting sliding groove 108, so that the sealing gasket 10 can be dismounted.

As shown in fig. 1 to 6, a gas pressure regulator includes a quick-dismantling type integral sealing gasket structure, and further includes a pressure regulator main body 20, a safety cut-off device 30, a pressure regulating valve body 40, an inlet ball valve 50 and an outlet ball valve 60, the inlet ball valve 50, the pressure regulating valve body 40 and the outlet ball valve 60 are sequentially communicated, a gas channel is arranged in the pressure regulating valve body 40, a partition plate 400 is arranged in the gas channel, the partition plate 400 divides the gas channel into a gas inlet channel 401 and a gas outlet channel 402, a valve port is arranged on the partition plate 400, a communicating pipe 403 is detachably connected at the valve port, and the communicating pipe 403 is used for communicating the gas inlet channel 401 and the gas outlet channel 402.

Preferably, the communicating tube 403 is screwed to the valve port and sealed.

Preferably, the voltage regulator main body 20 includes a voltage regulator housing 200 having a cavity therein, and a diaphragm assembly 201, a first spring 202, an intermediate connector 203 and a lever arm 204 disposed in the cavity of the voltage regulator housing 200, the voltage regulator housing 200 is divided into an upper housing 205 and a lower housing 206, the upper housing 205 and the lower housing 206 are detachably connected, the diaphragm assembly 201 is disposed between the upper housing 205 and the lower housing 206, the cavity in the voltage regulator housing 200 is divided into an upper cavity 207 and a lower cavity 208, the first spring 202 is disposed above the diaphragm assembly 201, one end of the first spring is connected with the upper housing 205, the intermediate connector 203 is disposed at the center of the diaphragm assembly 201, the bottom of the intermediate connector 203 is rotatably connected with one end of the lever arm 204, and the lever arm 204 is rotatably connected with the lower housing 206 through a lever pin 209.

Preferably, one end of the bottom of the lower housing 206 is detachably connected with the pressure regulating valve body 40, a sliding notch 210 is provided at the connection position of the lower housing 206 and the pressure regulating valve body 40, the sliding notch 210 is matched with the communicating pipe 403, the upper connector 102 is provided in the sliding notch 210 and is matched with the sliding notch 210 in a sliding manner, the other end of the lever arm 204 is rotationally connected with the connector 106 through a rotation pin 211, one end of the lower connector 101 in threaded connection with the upper connector 102 is located in the sliding notch 210, and the base 103, the mounting disc 11 and the sealing gasket 10 are located in the air outlet channel 402 in the pressure regulating valve body 40 and are matched with the communicating pipe 403.

Preferably, the membrane assembly 201 includes a membrane mounting frame and a membrane, a through opening is provided in the middle of the membrane mounting frame, the membrane is fixedly mounted in the through opening of the membrane mounting frame, the membrane assembly 201 is horizontally mounted between the upper housing 205 and the lower housing 206 through the membrane mounting frame, and the cavity in the pressure regulating housing 200 is divided into an upper cavity 207 and a lower cavity 208.

Preferably, the membrane assembly 201 is in a state of balanced stress and in a horizontal state under the condition that the gas pressure is normal.

Preferably, a connection port 212 is provided at the connection between the lower housing 206 and the pressure regulating valve body 40, the connection port 212 is disposed at one side of the sliding slot 210, and the connection port 212 is used for connecting the lower cavity 208 and the air outlet channel 402.

When the gas pressure in the gas outlet channel 402 is higher than the normal gas pressure, the gas pressure in the lower cavity 208 is increased, so that the leather film bulges upwards, the middle connector 203 is driven to move upwards, the lever arm 204 hinged with the middle connector 203 is driven to rotate, the upper connector 102 hinged with the other end of the lever arm 204 moves downwards in the sliding notch 210, the lower connector 101 moves downwards, the mounting plate 11 and the sealing gasket 10 move downwards, the gas entering the gas outlet channel 402 in the gas inlet channel 401 is reduced, and the gas flow is controlled, so that the gas pressure in the gas outlet channel 402 is reduced.

When the gas pressure in the gas outlet channel 402 is smaller than the normal gas pressure, the gas pressure in the lower cavity 208 is reduced, so that the film bulges downwards under the action of the first spring 202, the middle connector 203 is driven to move downwards, the lever arm 204 hinged with the middle connector 203 is driven to rotate, the upper connector 102 hinged with the other end of the lever arm 204 moves upwards in the sliding notch 210, the lower connector 101 moves upwards, the mounting plate 11 and the sealing gasket 10 move upwards, the gas in the gas inlet channel 401 is increased to enter the gas outlet channel 402, and the gas flow is controlled, so that the gas pressure in the gas outlet channel 402 is increased.

The larger the gap between the gasket 10 and the communicating pipe 403, the larger the gas flow, and the smaller the gap, the smaller the gas flow.

In order to make the connection between the pressure regulator body 20 and the pressure regulating valve body 40 have better tightness, this embodiment is modified on the basis of the above embodiment, and is different from the above embodiment in that the connection between the lower housing 206 and the pressure regulating valve body 40 is provided with a first sealing ring 70.

In order to timely cut off the gas in the gas inlet channel 401 from entering the gas outlet channel 402 when the gas pressure in the gas outlet channel 402 is greater than a dangerous value, the difference between the embodiment and the embodiment is that the safety cut-off device 30 comprises a shell 300, a piston 301, a movable rod 302, a blocking head 303, a second spring 304 and a check valve 305, one end of the shell 300 is detachably connected with the pressure regulating valve body 40, an installation cavity is arranged in the shell 300, the piston 301, the movable rod 302 and the second spring 304 are arranged in the installation cavity, the piston 301 divides the installation cavity into a gas storage cavity 306 and a sliding cavity 307, the piston 301 is arranged at the bottom of the sliding cavity 307, a sliding groove 308 matched with the piston 301 is arranged on the side wall of the sliding cavity 307, the outer side wall of the piston 301 is in sliding fit with the sliding groove 308 and is in sealing connection, the movable rod 302 is arranged at the top of the piston 301, one end of the pressure regulating valve body 40 extends into the gas inlet channel 401, the movable rod 302 is in sliding fit with the pressure regulating valve body 40, the piston 301 is in sealing connection with the blocking head 302, the piston 301 is in sealing connection with the piston body 302, the other end of the piston body 302 is arranged in the air storage cavity 306 and is in communication with the air inlet channel 40, one end of the air storage cavity is in communication with the air inlet channel 40 through the air storage cavity 306, and the other end of the air storage cavity is in communication with the air storage cavity 305, and the air storage cavity is in communication with the air storage cavity 40, and the air storage cavity is in communication with the air storage cavity 305.

Preferably, a gas release valve 309 is provided at the bottom of the housing 300 and is in communication with the gas storage chamber 306.

Preferably, a first pressure gauge 310 is disposed at one end of the air inlet channel 401 of the pressure regulating valve body 40, a second pressure gauge 311 is disposed at one end of the air outlet channel 402 of the pressure regulating valve body 40, an emergency release valve 312 is disposed at one end of the air outlet channel 402 of the pressure regulating valve body 40, and the emergency release valve 312 is communicated with the air outlet channel 402.

When the gas pressure of the gas outlet channel 402 is not equal to the dangerous pressure value, the piston 301 is positioned at the bottom of the chute 308 under the action of the second spring 304, when the gas pressure of the gas outlet channel 402 is close to the dangerous pressure value, the gas storage cavity 306 is communicated with the gas outlet channel 402, the gas pressure in the gas storage cavity 306 rises, so that the piston 301 is pushed to move upwards against the action of the second spring 304, the movable rod 302 and the blocking head 303 are further moved upwards, and when the gas pressure reaches the dangerous value, the blocking head 303 blocks the communicating pipe 403, and then the gas inlet channel 401 and the gas outlet channel 402 are cut off.

Then, the gas in the gas outlet channel 402 is discharged through the user side or through the emergency release valve 312, the second pressure gauge 311 is observed, when the second pressure gauge 311 is normal, the gas release valve 309 is opened, so that the gas in the gas storage cavity 306 is released, the piston 301 is reset under the action force of the second spring 304, and the gas inlet channel 401 is re-communicated with the gas outlet channel 402.

The check valve 305 functions to allow one-way entry of fuel gas in the outlet channel 402 into the reservoir 306.

The dangerous pressure value may be set to 4.4KPa, and when the pressure value reaches 4KPa, the piston 301 is pushed to start to move upward against the urging force of the second spring 304, and when the pressure value reaches the set dangerous pressure value of 4.4KPa, the blocking head 303 blocks the communicating tube 403, thereby cutting off the intake passage 401 and the outlet passage 402.

Preferably, both the gas vent valve 309 and the emergency vent valve 312 are externally piped to the outside.

In order to provide better tightness of the connection between the safety shut-off device 30 and the pressure regulating valve body 40, this embodiment is modified on the basis of the above embodiment, and is different from the above embodiment in that the connection between the housing 300 and the pressure regulating valve body 40 is provided with a second seal ring 71.

In order to make the connection of the check valve 305 have better tightness, two ends of the check valve 305 are respectively connected with two pipelines in a flange manner, and the two pipelines are respectively connected with the pressure regulating valve body 40 and the housing 300 in a sealing manner.

In order to make the connection of the gas release valve 309 have better tightness, the gas release valve 309 is fixedly connected with the housing 300, and the connection part is subjected to sealing treatment.

In order to make the connection between the first pressure gauge 310 and the second pressure gauge 311 have better tightness, the first pressure gauge 310 and the second pressure gauge 311 are detachably connected with the pressure regulating valve body 40 respectively, and the connection part is subjected to sealing treatment.

In order to make the whole gas pressure regulator have better tightness, the inlet ball valve 50 is in flange connection with one side of the air inlet channel 401 of the pressure regulating valve body 40, and the outlet ball valve 60 is in flange connection with one side of the air outlet channel 402 of the pressure regulating valve body 40.

In the above embodiment, the sealing treatment may be performed in the following manner: the sealant is filled in during installation, and can also be: the sealing gasket is arranged during installation, and the sealing gasket is selected according to actual installation requirements so as to ensure that the sealing gasket has better sealing performance during installation.

As shown in fig. 1, in the above embodiment, the inlet ball valve 50 and the outlet ball valve 60 may be disposed at both left and right sides of the pressure regulating valve body 40, respectively, which is suitable for use in a case where a space is large.

As shown in fig. 7, in the above embodiment, the inlet ball valve 50 and the outlet ball valve 60 may be disposed at left and right sides of the lower end of the pressure regulating valve body 40, respectively, which is suitable for use in a case where the space is small.

The two setting modes can be selected according to actual use conditions.

The working principle of the utility model is as follows:

When the gasket 10 needs to be replaced, the mounting plate 11 is rotated, and then the lower connector 101 fixedly connected with the mounting plate 11 is driven to rotate, so that the lower connector 101 is separated from the upper connector 102, the mounting plate 11 and the lower connector 101 are detached, the gasket 10 installed in the mounting groove 100 at the bottom of the mounting plate 11 is detached, the gasket 10 is replaced by a new gasket 10, the lower connector 101 corresponds to the upper connector 102, then the mounting plate 11 is rotated, and the lower connector 101 is connected with the upper connector 102, so that the replacement of the gasket 10 is completed.

The foregoing examples merely illustrate specific embodiments of the utility model, which are described in greater detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model.

Claims (10)

1. The utility model provides a quick detach formula whole sealing gasket structure, its characterized in that includes sealing gasket (10), mounting disc (11) and connection structure (12), sealing gasket (10) are discoid, the terminal surface of the top and the bottom of sealing gasket (10) is planar, the bottom of mounting disc (11) is equipped with mounting groove (100) that are used for installing sealing gasket (10), sealing gasket (10) are installed in mounting groove (100), and can dismantle with mounting disc (11);

The connecting structure (12) comprises a lower connector (101) arranged at the top of the mounting disc (11) and an upper connector (102) detachably connected with the lower connector (101), the lower connector (101) comprises a base (103) and a connecting rod (104), the base (103) is fixedly connected with the top of the mounting disc (11), the connecting rod (104) is fixedly connected with the top of the base (103), the upper connector (102) comprises a connecting sleeve (105) and a connecting head (106), and the connecting head (106) is fixedly connected with the top of the connecting sleeve (105);

The connecting rod (104) is provided with external threads, the connecting sleeve (105) is internally provided with internal threads matched with the external threads on the connecting rod (104), and the connecting rod (104) is in threaded connection with the connecting sleeve (105) through the matching of the external threads and the internal threads.

2. The quick-dismantling type integral sealing gasket structure according to claim 1, wherein a pair of limiting sliding sheets (107) are arranged on the top end face of the sealing gasket (10), limiting sliding grooves (108) matched with the limiting sliding sheets (107) are arranged in the mounting groove (100), and the sealing gasket (10) is detachably connected with the mounting disc (11) through the matching of the limiting sliding sheets (107) and the limiting sliding grooves (108).

3. The gas pressure regulator is characterized by comprising the quick-dismantling type integral sealing gasket structure according to any one of claims 1 or 2, and further comprising a pressure regulator main body (20), a safety cut-off device (30), a pressure regulating valve body (40), an inlet ball valve (50) and an outlet ball valve (60), wherein the inlet ball valve (50), the pressure regulating valve body (40) and the outlet ball valve (60) are sequentially communicated, a gas channel is arranged in the pressure regulating valve body (40), a partition plate (400) is arranged in the gas channel, the partition plate (400) divides the gas channel into an air inlet channel (401) and an air outlet channel (402), a valve port is arranged on the partition plate (400), a communicating pipe (403) is detachably connected to the valve port, and the communicating pipe (403) is used for communicating the air inlet channel (401) with the air outlet channel (402).

4. A gas pressure regulator according to claim 3, wherein the pressure regulator body (20) comprises a pressure regulating housing (200) with a cavity inside, a membrane assembly (201) arranged in the cavity of the pressure regulating housing (200), a first spring (202), an intermediate connector (203) and a lever arm (204), the pressure regulating housing (200) is divided into an upper housing (205) and a lower housing (206), the upper housing (205) and the lower housing (206) are detachably connected, the membrane assembly (201) is arranged between the upper housing (205) and the lower housing (206), the cavity in the pressure regulating housing (200) is divided into an upper cavity (207) and a lower cavity (208), the first spring (202) is arranged above the membrane assembly (201), one end of the first spring is connected with the membrane assembly (201), the other end of the first spring is connected with the upper housing (205), the intermediate connector (203) is arranged at the center of the membrane assembly (201), the bottom of the intermediate connector (203) is rotatably connected with one end of the lever arm (204), and the lever (204) is rotatably connected with the lever arm (206) through a pin (209).

5. The gas pressure regulator according to claim 4, wherein one end of the bottom of the lower housing (206) is detachably connected with the pressure regulating valve body (40), a sliding notch (210) is formed at a joint of the lower housing (206) and the pressure regulating valve body (40), the sliding notch (210) is matched with the communicating pipe (403), the upper connector (102) is arranged in the sliding notch (210) and is matched with the sliding notch (210) in a sliding manner, the other end of the lever arm (204) is rotationally connected with the connecting head (106) through a rotating pin (211), one end of the lower connector (101) in threaded connection with the upper connector (102) is located in the sliding notch (210), and the base (103), the mounting disc (11) and the sealing gasket (10) are located in the gas outlet channel (402) in the pressure regulating valve body (40) and are matched with the communicating pipe (403).

6. The gas pressure regulator according to claim 5, wherein a connection portion between the lower housing (206) and the pressure regulating valve body (40) is provided with a communication port (212), the communication port (212) is disposed on one side of the sliding notch (210), and the communication port (212) is used for communicating the lower cavity (208) with the gas outlet channel (402).

7. A gas pressure regulator according to claim 3, wherein the safety shut-off device (30) comprises a housing (300), a piston (301), a movable rod (302), a blocking head (303), a second spring (304) and a check valve (305), one end of the housing (300) is detachably connected with the pressure regulating valve body (40), a mounting cavity is arranged in the housing (300), the piston (301), the movable rod (302) and the second spring (304) are arranged in the mounting cavity, the mounting cavity is divided into a gas storage cavity (306) and a sliding cavity (307) by the piston (301), the piston (301) is arranged at the bottom of the sliding cavity (307), a sliding groove (308) matched with the piston (301) is arranged on the side wall of the sliding cavity (307), the outer side wall of the piston (301) is arranged in the sliding groove (308) in a sliding fit with the sliding groove (308), the movable rod (302) is arranged at the top of the piston (301) and is in a sealing connection, one end of the piston (302) extends into the air inlet channel (401), the movable rod (302) is arranged in the sliding groove (403) in a sealing connection with the air inlet channel (401), and the blocking head (403) is arranged at one end of the sliding valve (303), the second spring (304) is sleeved outside the movable rod (302), one end of the second spring is connected with the pressure regulating valve body (40), the other end of the second spring is connected with the piston (301), one end of the check valve (305) is communicated with the air outlet channel (402) in the pressure regulating valve body (40) through a pipeline, the other end of the check valve is communicated with the air storage cavity (306) in the shell (300) through a pipeline, and fuel gas in the air outlet channel (402) can enter the air storage cavity (306) through the check valve (305).

8. A gas pressure regulator according to claim 7, characterized in that the bottom of the housing (300) is provided with a gas relief valve (309) communicating with the gas storage chamber (306).

9. A gas pressure regulator according to claim 3, wherein a first pressure gauge (310) is arranged at one end of the gas inlet channel (401) of the pressure regulating valve body (40), a second pressure gauge (311) is arranged at one end of the gas outlet channel (402) of the pressure regulating valve body (40), an emergency release valve (312) is arranged at one end of the gas outlet channel (402) of the pressure regulating valve body (40), and the emergency release valve (312) is communicated with the gas outlet channel (402).

10. A gas pressure regulator according to claim 9, wherein the inlet ball valve (50) is connected to a flange on the side of the inlet channel (401) of the pressure regulating valve body (40), and the outlet ball valve (60) is connected to a flange on the side of the outlet channel (402) of the pressure regulating valve body (40).