CN216045668U

CN216045668U - Effectual pressure reduction valve of steady voltage

Info

Publication number: CN216045668U
Application number: CN202122007625.9U
Authority: CN
Inventors: 伍桂婵; 黎明锋
Original assignee: Foshan Shunde Rongguiming Hong Burning Utensils Co ltd
Current assignee: Foshan Shunde Rongguiming Hong Burning Utensils Co ltd
Priority date: 2021-08-25
Filing date: 2021-08-25
Publication date: 2022-03-15
Anticipated expiration: 2031-08-25

Abstract

The utility model discloses a pressure reducing valve with good pressure stabilizing effect, which belongs to the field of pressure reducing valves and comprises a valve body, wherein an air inlet pipe is sleeved on one side of the valve body in a threaded manner, an inner cavity groove is formed in the valve body, a diaphragm is arranged in the inner cavity groove, a pressure plate is arranged at the bottom of the diaphragm, a pressure regulating spring is arranged in the inner cavity groove, and a pressure gauge is arranged at the top of the valve body; through setting up the leak-stopping steel ball, the rubber tube drops when the relief valve uses, it is ageing, break and burn out, thereby lead to leaking gas or regulator when final life is out of control, the gas that flows can form the pressure differential, the air current can promote the leak-stopping steel ball and close the gas circuit this moment, effectively prevent gaseous outside leakage, ensure safety, thereby when having avoided the gas pipeline to take place the gas and revealing, the relief valve of opening easily causes the problem of gas explosion, thereby very big improvement the security when the relief valve uses.

Description

Effectual pressure reduction valve of steady voltage

Technical Field

The utility model belongs to the technical field of pressure reducing valves, and particularly relates to a pressure reducing valve with a good pressure stabilizing effect.

Background

The pressure reducing valve is a valve which reduces the inlet pressure to a certain required outlet pressure by regulation and automatically keeps the outlet pressure stable by the energy of a medium, and from the viewpoint of hydromechanics, the pressure reducing valve is a throttling element with changeable local resistance, namely, the flow rate and the kinetic energy of fluid are changed by changing the throttling area to cause different pressure losses, thereby achieving the purpose of pressure reduction, and then the fluctuation of the pressure behind the valve is balanced with the spring force by the regulation of a control and regulation system, so that the pressure behind the valve is kept constant within a certain error range.

However, most of the existing pressure reducing valves are large in pressure inside the delivery pipe when in use, so that the pressure reducing valves are caused to be in an unstable state when being opened and closed, and meanwhile, the pressure reducing valves are mostly opened and closed in a gas pipeline, so that when the gas pipeline leaks gas, the opened pressure reducing valves easily cause the risk of gas explosion.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a pressure reducing valve with good pressure stabilizing effect so as to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides an effectual relief valve of steady voltage, includes the valve body, the intake pipe has been cup jointed to one side screw thread of valve body, the inner chamber groove has been seted up to the inside of valve body, the inside in inner chamber groove is provided with the diaphragm, the bottom of diaphragm is provided with the clamp plate, the inside in inner chamber groove is provided with the pressure regulating spring, the top of valve body is provided with the manometer, one side of inner chamber inslot portion is provided with the piston, and one side of inner chamber inslot portion is provided with the steel ball that only leaks, the inside in inner chamber groove is provided with the connecting rod, and the inside in inner chamber groove is provided with the pressure regulating lever, the inside in inner chamber groove is provided with the circle that only leaks, the outlet duct has been cup jointed to the opposite side screw thread of valve body.

In a preferred embodiment, the diaphragm is located right below the pressure gauge, and the diaphragm is adapted to the pressure plate.

As a preferred embodiment, the pressure gauge is located right above the pressure regulating spring, and the pressure gauge and the pressure regulating spring are perpendicular to each other.

In a preferred embodiment, the material of the leakage-stopping ring is a rubber material, and the leakage-stopping ring is matched with the inner cavity groove.

In a preferred embodiment, the diameter of the ball is smaller than that of the ring, and the ball is located at the center of the side surface of the ring.

In a preferred embodiment, the front surface of the air outlet pipe is conical, and the air outlet pipe is matched with the valve body.

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

the pressure reducing valve with good pressure stabilizing effect is provided with the membrane, when liquefied gas and oil are discharged from the steel cylinder and reach the inner part of the inner cavity groove through the gas inlet pipe, the gas appliance is closed, when the liquefied kerosene and gas entering the inner cavity groove are increased, the diaphragm extruded by the pressure regulating spring is jacked up to force the pressure regulating lever to move upwards, thereby the pressure regulating lever effect seals the valve port, closes the passage of the liquefied gas inlet, prevents the pressure from continuously rising, when the gas appliance is opened, the liquefied kerosene gas flows out from the pressure reducing valve to reduce the pressure inside the cavity groove and drive the pressure regulating lever to move downwards, so that the external gas enters the upper gas chamber from the breathing hole, the inlet pressure is higher or lower, and the outlet pressure is stable, so that the pressure reduction and stabilization effects are achieved, and the problem of unstable internal pressure when the pressure reduction valve is used is solved;

this effectual pressure reduction valve of steady voltage, through setting up the leak-stopping steel ball, the rubber tube drops when the pressure reduction valve uses, it is ageing, break and burn out, thereby lead to gas leakage or regulator when last life is out of control, the gas that flows can form the atmospheric pressure difference, the air current can promote the leak-stopping steel ball and close the gas circuit this moment, effectively prevent the outside leakage of gas, ensure safety, thereby when having avoided the gas pipeline to take place the gas and reveal, the pressure reduction valve of opening easily causes the problem of gas explosion, thereby very big improvement the security when the pressure reduction valve uses.

Drawings

FIG. 1 is a front cross-sectional view of a structure of the present invention;

fig. 2 is a top view of the structure of the present invention.

In the figure: 1. a valve body; 2. an air inlet pipe; 3. an inner cavity groove; 4. a membrane; 5. pressing a plate; 6. a pressure regulating spring; 7. a pressure gauge; 8. a piston; 9. a leakage-stopping steel ball; 10. a connecting rod; 11. a pressure regulating lever; 12. a leakage-stopping ring; 13. and an air outlet pipe.

Detailed Description

The present invention will be further described with reference to the following examples.

The following examples are intended to illustrate the utility model but are not intended to limit the scope of the utility model. The conditions in the embodiments can be further adjusted according to specific conditions, and simple modifications of the method of the present invention based on the concept of the present invention are within the scope of the claimed invention.

Referring to fig. 1 and 2, the utility model provides a pressure reducing valve with good pressure stabilizing effect, which comprises a valve body 1 and a leakage stopping ring 12, in order to check the storage capacity of fuel gas, an air inlet pipe 2 is sleeved on one side of the valve body 1 in a threaded manner, an inner cavity groove 3 can be arranged inside the valve body 1, a diaphragm 4 is arranged inside the inner cavity groove 3, a pressure plate 5 can be arranged at the bottom of the diaphragm 4, a pressure regulating spring 6 is arranged inside the inner cavity groove 3, a pressure gauge 7 can be arranged at the top of the valve body 1, the pressure gauge 7 is positioned right above the pressure regulating spring 6, the pressure gauge 7 and the pressure regulating spring 6 are mutually vertical, the surface of the pressure gauge 7 can have numbers, the unit of the numbers is megapascal, the number indicated by a pointer is the gas pressure in the cylinder, when the pointer is indicated in a first area, enough gas is in the cylinder, when the pointer is indicated in a red area, the gas in the cylinder is nearly exhausted, the gas bottle is prepared to be ventilated at any time, so that a user is prevented from knowing about the approximate storage capacity of liquefied gas in the gas bottle in time, the user is reminded of ventilating in time, and convenience is brought to checking of the storage capacity of the gas.

Referring to fig. 1, in order to improve the safety of the pressure reducing valve during use, a piston 8 is arranged on one side inside an inner cavity groove 3, a leakage stopping steel ball 9 is arranged on one side inside the inner cavity groove 3, the diameter value of the leakage stopping steel ball 9 is smaller than that of a leakage stopping ring 12, the leakage stopping steel ball 9 is located in the middle of the side face of the leakage stopping ring 12, when the pressure reducing valve is used, a rubber pipe falls off, ages, breaks and burns, and therefore gas leakage or the service life of an adjuster is out of control, flowing gas can form a gas pressure difference, at the moment, the gas flow can push the leakage stopping steel ball 9 to close a gas circuit, outward gas leakage is effectively prevented, safety is ensured, the problem that when a gas pipeline leaks gas, the opened pressure reducing valve is prone to cause gas explosion is solved, and the safety of the pressure reducing valve during use is greatly improved.

Referring to fig. 1, in order to avoid unstable internal pressure when the pressure reducing valve is used, a connecting rod 10 is arranged inside the inner cavity groove 3, a pressure regulating lever 11 is arranged inside the inner cavity groove 3, the diaphragm 4 is positioned under the pressure gauge 7, and the diaphragm 4 is matched with the pressure plate 5, when liquefied petroleum gas is discharged from the steel cylinder and reaches the inner cavity groove 3 through the gas inlet pipe 2, the gas appliance is closed at the moment, so that the diaphragm 4 extruded by the pressure regulating spring 6 is jacked up to force the lever of the pressure regulating lever 11 to move upwards when the liquefied petroleum gas entering the inner cavity groove 3 increases, so that the valve port is closed under the action of the pressure regulating lever 11, a passage at the inlet of the liquefied petroleum gas is closed, the pressure is prevented from continuing to rise, when the gas appliance is opened, the liquefied petroleum gas flows out of the pressure reducing valve, the pressure inside the inner cavity groove 3 is reduced, the pressure regulating lever 11 is driven to move downwards, and external gas enters the upper air chamber from the breathing hole, and then make the pressure of admitting air on the high side or on the low side, outlet pressure is firm always to reach the effect of step-down and steady voltage, make the unstable problem of internal pressure when having avoided the relief valve to use.

Referring to fig. 1, in order to improve the stability of the pressure reducing door, a leakage stopping ring 12 may be disposed inside the inner cavity groove 3, the leakage stopping ring 12 is made of a rubber material, and the leakage stopping ring 12 is adapted to the inner cavity groove 3, when the gas circulates inside the closed inner cavity groove 3, the leakage stopping ring 12 greatly improves the sealing performance of the closed inner cavity groove 3, so that the problem of leakage of the gas due to poor sealing performance of the inner cavity groove 3 is avoided, and the stability of the pressure reducing door is improved.

Please refer to fig. 1 and 2, in order to improve the stability of the installed pressure reducing valve, the outlet pipe 13 is sleeved on the other side of the valve body 1 by screw threads, the front surface of the outlet pipe 13 is conical, and the outlet pipe 13 is matched with the valve body 1, when the pressure reducing valve is installed, the outlet pipe 13 is sleeved inside the gas pipe, so that the outlet pipe 13 with the groove on the surface can improve the friction force between the outlet pipe and the gas pipe, thereby improving the stability of the outlet pipe 13 after the sleeving, and avoiding the problem that the gas pipe is loosened or falls off due to the fact that the surface of the gas pipe is smooth, thereby greatly improving the stability of the installed pressure reducing valve.

The working principle and the using process of the utility model are as follows: firstly, when liquefied kerosene and gas are discharged from a steel cylinder and reach the interior of an inner cavity groove 3 through an air inlet pipe 2, a gas appliance is closed at the moment, so that liquefied kerosene and gas entering the interior of the inner cavity groove 3 are increased, a diaphragm 4 extruded by a pressure regulating spring 6 is jacked up, a lever of a pressure regulating lever 11 is forced to move upwards, the pressure regulating lever 11 acts to seal a valve port, a passage of an inlet of the liquefied kerosene and gas is closed, the pressure is prevented from continuously rising, when the gas appliance is opened, the liquefied kerosene and gas flows out of a pressure reducing valve, the pressure in the interior of the inner cavity groove 3 is reduced, the pressure regulating lever 11 is driven to move downwards, so that external gas enters an upper air chamber from a breathing hole, the inlet pressure is higher or lower, the outlet pressure is always stable, the effects of pressure reduction and pressure stabilization are achieved, the problem of unstable internal pressure when the pressure reducing valve is used is avoided, the surface of a pressure gauge 7 can have numbers, the unit of the number is megapascal, the number of the pointer is gas pressure in the cylinder, when the pointer is in a first area, the gas in the cylinder is enough gas, when the pointer is in a red area, the gas in the gas cylinder is nearly exhausted, and the gas is ready to be exchanged at any time, so that a user is prevented from knowing the approximate storage amount of liquefied gas in the gas cylinder in time, the user is reminded to exchange gas in time, convenience is brought to checking the storage amount of the gas, when the gas circulates in the closed inner cavity groove 3, the leak-stopping ring 12 greatly improves the tightness of the closed inner cavity groove 3, the problem that the gas leaks due to poor tightness of the inner cavity groove 3 is avoided, the stability of the pressure reducing valve is improved, when the pressure reducing valve is used, a rubber pipe falls off, ages, breaks and burns, and the flowing gas is caused to form gas pressure difference when the gas leaks or the regulator is out of control in the final service life, the air current can promote only to leak steel ball 9 and close the gas circuit this moment, effectively prevent gaseous outside leakage, ensure safety, thereby when having avoided the gas pipeline to take place the gas and reveal, the decompression valve of opening easily causes the problem of gas explosion, thereby very big improvement the security when the decompression valve uses, when installing the decompression valve, cup joint outlet duct 13 inside gas transmission pipe, thereby make the notched outlet duct 13 of surface area can improve and the gas-supply pipe between the frictional force, thereby the stability of cup jointing back outlet duct 13 has been improved, avoided because of the comparatively smooth gas-supply pipe after leading to the installation in gas-supply pipe surface takes place not hard up or the problem that drops, thereby very big improvement the stability after the decompression valve installation.

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 utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an effectual decompression valve of steady voltage, includes valve body (1), its characterized in that: intake pipe (2) have been cup jointed to one side screw thread of valve body (1), inner chamber groove (3) have been seted up to the inside of valve body (1), the inside of inner chamber groove (3) is provided with diaphragm (4), the bottom of diaphragm (4) is provided with clamp plate (5), the inside of inner chamber groove (3) is provided with pressure regulating spring (6), the top of valve body (1) is provided with manometer (7), the inside one side of inner chamber groove (3) is provided with piston (8), and the inside one side of inner chamber groove (3) is provided with leak-stopping steel ball (9), the inside of inner chamber groove (3) is provided with connecting rod (10), and the inside of inner chamber groove (3) is provided with pressure regulating lever (11), the inside of inner chamber groove (3) is provided with leak-stopping circle (12), the opposite side screw thread of valve body (1) has cup jointed outlet duct (13).

2. A pressure reducing valve with good pressure stabilizing effect according to claim 1, characterized in that: the diaphragm (4) is located under the pressure gauge (7), and the diaphragm (4) is matched with the pressure plate (5).

3. A pressure reducing valve with good pressure stabilizing effect according to claim 1, characterized in that: the pressure gauge (7) is positioned right above the pressure regulating spring (6), and the pressure gauge (7) and the pressure regulating spring (6) are perpendicular to each other.

4. A pressure reducing valve with good pressure stabilizing effect according to claim 1, characterized in that: the material of the leakage stopping ring (12) is rubber material, and the leakage stopping ring (12) is matched with the inner cavity groove (3).

5. A pressure reducing valve with good pressure stabilizing effect according to claim 1, characterized in that: the diameter value of the leakage stopping steel ball (9) is smaller than that of the leakage stopping ring (12), and the leakage stopping steel ball (9) is positioned in the middle of the side face of the leakage stopping ring (12).

6. A pressure reducing valve with good pressure stabilizing effect according to claim 1, characterized in that: the front surface of the air outlet pipe (13) is conical, and the air outlet pipe (13) is matched with the valve body (1).