Gas pressure regulator, regulator device

Abstract

The gas pressure regulator and the pressure regulator device disclosed by the embodiment of the application comprise a valve body, a pressure regulating assembly arranged in the interior of the valve body, the valve body being divided into a pressure regulating cavity and a valve cavity, the pressure regulating assembly moving back and forth with the difference of the acting force between the pressure regulating cavity and the valve cavity, an indicating assembly sleeved on the top of the valve body, the indicating assembly being in sliding connection with the valve body, the end of the indicating assembly being in clamping connection with the side wall of the pressure regulating assembly, the indicating assembly being capable of driving the pressure regulating assembly to move to open the valve body, the indicating assembly being connected with the top end of the pressure regulating assembly through an elastic member, and when the valve body is in the open state, the indicating assembly moves relative to the valve body under the elastic force of the elastic member, so that a gap is formed between the contact surface of the indicating assembly and the valve body. The gas pressure regulator provided by the application has a simple structure, the state of the gas pressure regulator can be judged according to whether the gap exists between the indicating assembly and the valve body, in addition, the indicating button is in movement connection, the pressing does not cause the pressure to rise, and the safety of the user is ensured.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of valves, and particularly relates to a gas pressure regulator and a pressure regulator device. BACKGROUND

[0002] A gas pressure regulator is generally installed on a liquefied gas cylinder, and has the functions of pressure reduction and pressure stabilization, so as to ensure the safety of gas use of a user. The gas inlet end of the gas pressure regulator is generally connected with an angle valve of the liquefied gas cylinder, and the gas outlet end of the gas pressure regulator is connected with a metal-coated hose and then delivered to a gas appliance. The gas pressure regulator is widely used as an indispensable product when the liquefied gas cylinder and the gas appliance are connected.

[0003] Most of the existing gas pressure regulators do not have obvious on-off state indication, and a user cannot intuitively determine whether the pressure regulator is in an open state or a closed state, so that the user experience is poor. For some pressure regulators with an indication knob, the indication knob is hard-connected with a pressure regulating part of the product, and the user can press the knob to increase the outlet pressure and then increase the combustion power of the gas appliance, which is strictly prohibited by the national standard, and at the same time, the pressure stabilization function of the product is lost, which is extremely easy to endanger the personal safety of the user and cause property loss. SUMMARY

[0004] The present application provides a gas pressure regulator and a pressure regulator device, so as to solve the technical problem that the existing pressure regulator does not have an on-off state indication function, and the pressure regulator provided with a knob has safety hazards in use.

[0005] To solve the above technical problem, the gas pressure regulator disclosed in the embodiments of the present application comprises:

[0006] a valve body;

[0007] a pressure regulating assembly arranged in the interior of the valve body, which divides the valve body into a pressure regulating cavity and a valve cavity, and moves back and forth according to the difference of the acting force between the pressure regulating cavity and the valve cavity, so as to adjust the gas outlet amount of the gas outlet of the valve body or close the valve body;

[0008] an indication assembly sleeved on the top of the valve body and in sliding connection with the valve body, and the end thereof is clamped with the side wall of the pressure regulating assembly, so as to drive the pressure regulating assembly to move to open the valve body; the indication assembly is connected with the top end of the pressure regulating assembly through an elastic member;

[0009] When the valve body is in an open state, the indication assembly moves relative to the valve body under the elastic force of the elastic member, so as to form a gap between the contact surfaces of the indication assembly and the valve body.

[0010] Optionally, the pressure regulating assembly comprises:

[0011] The skin film assembly is located in the middle of the valve body, and divides the valve body into the pressure regulating cavity and the valve cavity along the vertical direction, and moves back and forth with the difference of the force between the pressure regulating cavity and the valve cavity;

[0012] The moving assembly is located outside the air inlet of the valve body, and is rotationally connected with the bottom of the skin film assembly, and the movement of the skin film assembly can drive the first end of the moving assembly to move, so that the first end adjusts the air outlet of the valve body or closes the valve body.

[0013] Optionally, the skin film assembly comprises:

[0014] The skin film is arranged inside the valve body, and divides the valve body into the pressure regulating cavity and the valve cavity along the vertical direction;

[0015] The connecting rod is fixedly connected with the skin film and can move with the movement of the skin film, one end of the connecting rod is connected with the indicating assembly through the elastic member, the side wall of the connecting rod is clamped with the indicating assembly, and the other end of the connecting rod is rotationally connected with the moving assembly;

[0016] The main spring is sleeved on the outer side wall of the connecting rod, one end of the main spring is connected with the skin film, and the other end of the main spring is connected with the valve body.

[0017] Optionally, the moving assembly comprises:

[0018] The lever is rotationally connected in the inside of the valve body through a pin shaft, one end of the lever is rotationally connected with the connecting rod;

[0019] The push rod is slidably arranged in the air inlet channel of the valve body, the first end of the push rod is located outside the air inlet of the valve body, the other end of the push rod is clamped with the other end of the lever, and the rotation of the lever can drive the push rod to reciprocate along the air inlet channel, so that the first end of the push rod adjusts the air outlet of the valve body or closes the valve body.

[0020] Optionally, the undersize valve gasket and the sealing gasket are further arranged at the first end of the push rod, the undersize valve gasket is used to close the air inlet of the valve body when the valve cavity loses pressure, the skin film drives the connecting rod to move, the connecting rod drives the lever to rotate, and then drives the undersize valve gasket to close the air inlet of the valve body, and the sealing gasket is used to adjust the pressure of the air outlet of the valve body.

[0021] Optionally, the undersize valve gasket and the sealing gasket are further arranged at the first end of the push rod, the undersize valve gasket is used to close the air inlet of the valve body when the valve cavity loses pressure, the skin film drives the connecting rod to move, the connecting rod drives the lever to rotate, and then drives the undersize valve gasket to close the air inlet of the valve body, and the sealing gasket is used to adjust the pressure of the air outlet of the valve body.

[0022] The buckle is fixedly connected to the end of the connecting rod, the indicating assembly is clamped with the connecting rod through the buckle, one end of the elastic member abuts against the buckle, and the other end of the elastic member abuts against the indicating assembly.

[0023] Optionally, the indicating assembly comprises:

[0024] An indicating button is sleeved on the top of the valve body and is in sliding connection with the valve body.

[0025] A round mark is installed on the top of the indicating button.

[0026] The middle part of the indicating button penetrates the top of the valve body and can slide relative to the valve body, the buckle is located inside the indicating button and can slide inside the indicating button, and the bottom of the indicating button is clamped with the buckle; the elastic member is located between the buckle and the indicating button.

[0027] Optionally, the application further comprises:

[0028] A pressure regulating cover is screwed on the top of the valve body, one end of the main spring is abutted on the cover surface of the pressure regulating cover, the compressed degree of the main spring can be adjusted by rotating the pressure regulating cover, and then the adjusting pressure of the pressure regulating cavity is adjusted.

[0029] A cover is arranged inside the indicating button and moves with the indicating button to abut against the elastic member.

[0030] Optionally, the application further comprises:

[0031] A valve port member is arranged at the inlet end of the valve body, and the end of the valve port member is arranged opposite to the sealing gasket.

[0032] In another aspect, the application provides a pressure regulator device provided with the above-mentioned gas pressure regulator.

[0033] The gas pressure regulator disclosed in the embodiment of the application comprises a valve body, a pressure regulating assembly arranged inside the valve body, the valve body being divided into a pressure regulating cavity and a valve cavity, the pressure regulating assembly moving back and forth with the difference of the acting force between the pressure regulating cavity and the valve cavity, so as to adjust the gas outlet amount of the gas outlet of the valve body or close the valve body, an indicating assembly sleeved on the top of the valve body and in sliding connection with the valve body, the end of the indicating assembly being clamped with the side wall of the pressure regulating assembly and capable of driving the pressure regulating assembly to move to open the valve body, the indicating assembly being connected with the top end of the pressure regulating assembly through an elastic member, and the indicating assembly moving relative to the valve body under the elastic force of the elastic member when the valve body is in the open state, so that a gap is formed between the contact surface of the indicating assembly and the valve body. The gas pressure regulator provided in the application has simple structure, can judge the state of the gas pressure regulator according to whether there is a gap between the indicating assembly and the valve body, and adopts the movement connection mode of the indicating button, so that the pressure does not increase when pressed, thereby ensuring the safety of the user. BRIEF DESCRIPTION OF DRAWINGS

[0034] Figure 1A structure schematic diagram of a closed state of a gas pressure regulator with state indication provided by the application.

[0035] Figure 2 A structure schematic diagram of an opened state of a gas pressure regulator with state indication provided by the application.

[0036] Figure 3 A structure schematic diagram of a state indication pressing not affecting pressure state of a gas pressure regulator with state indication provided by the application.

[0037] In the figure, 1. valve body; 2. upper cover; 3. main spring; 4. buckle; 5. indicating button; 6. round mark; 7. cover; 8. elastic member; 9. pressure regulating cover; 10. connecting rod; 11. lever; 12. pin shaft; 13. push rod; 14. leather film; 15. sealing gasket; 16. valve port member; 17. under-pressure valve gasket. DETAILED DESCRIPTION

[0038] The application will be further described in detail below in combination with the accompanying drawings and specific embodiments.

[0039] REFERENCE Figure 1 - Figure 3 , Figure 1 A closed state schematic diagram of a gas pressure regulator with state indication provided by the application. Figure 2 An opened state schematic diagram of a gas pressure regulator with state indication provided by the application. Figure 3 A state indication pressing not affecting pressure state schematic diagram of a gas pressure regulator with state indication provided by the application.

[0040] At present, a gas pressure regulator is generally installed on a liquefied gas cylinder, which has the functions of pressure reduction and pressure stabilization, and can ensure the gas safety of users. The gas inlet end of the gas pressure regulator is generally connected with an angle valve of the liquefied gas cylinder, and the gas outlet end of the gas pressure regulator is connected with a metal-coated hose and then delivered to a gas appliance. When the liquefied gas cylinder and the gas appliance are connected, the gas pressure regulator is widely used as an indispensable product.

[0041] Most of the existing gas pressure regulators have no obvious on-off state indication, so users cannot intuitively determine whether the pressure regulator is in an opened state or a closed state, and the user experience is poor. For some pressure regulators with an indicating knob, the indicating knob is hard-connected with the product pressure regulating part, and the user can press the knob to increase the outlet pressure and then increase the combustion power of the gas appliance, which is strictly prohibited by the national standard, and at the same time, the product pressure stabilization function is lost, which is extremely easy to endanger the personal safety of users and cause property loss.

[0042] In order to solve the above-mentioned existing gas pressure regulator does not have the problem of indicating function, the applicant conceives, based on the above-mentioned problem, the technical scheme of the present application can realize indication through certain information by the use state of the gas pressure regulator, for example, increase the indicating button 5 on the gas pressure regulator, the position of the indicating button 5 is used to indicate the state of the gas pressure regulator, such as when the indicating button 5 and the valve body 1 exist gap, the gas pressure regulator is in working condition;The indicating button 5 is connected with the pressure regulating assembly, when the gas pressure regulator is closed, the pressure regulating assembly moves to the bottom of the valve body 1, which can drive the indicating button 5 to move towards the bottom of the valve body 1, so that the indicating button 5 and the valve body 1 do not exist gap, it can be seen that the above-mentioned conception can solve the problem that the existing gas pressure regulator does not have the indication function.

[0043] In order to solve the technical problem that the pressure regulator provided with the lifting handle has safety hazard in use, the applicant conceives, based on the above-mentioned problem, it is necessary to ensure that in the use process of the gas pressure regulator, such as the user misoperation, for example, press the indicating button 5, it is necessary to ensure that the indicating button 5 does not generate force to the pressure regulating assembly or minimize the force applied to the pressure regulating assembly, so as to avoid that the indicating button 5 applies force to the pressure regulating assembly and makes the pressure regulating assembly unbalanced, thereby causing the gas pressure regulating valve to close or the gas pressure regulating valve to increase the air inlet amount, based on the above-mentioned conception, the indicating button 5 can be connected with the pressure regulating assembly through the elastic member 8, when the gas pressure regulator needs to be reset, the adjusting assembly can be pulled up by pulling the indicating button 5, then the indicating button 5 does not generate force to the pressure regulating assembly, and the pressure regulating assembly is balanced under the action of the pressure regulating cavity and the valve cavity.

[0044] Based on the above-mentioned conception, the technical scheme of the present application is proposed, and the specific scheme is as follows:

[0045] As shown in Figure 1 The gas pressure regulator disclosed by the embodiment of the present application comprises: a valve body 1;A pressure regulating assembly is arranged in the interior of the valve body 1, the valve body 1 is divided into a pressure regulating cavity and a valve cavity, and the pressure regulating assembly moves back and forth according to the difference of the force between the pressure regulating cavity and the valve cavity, so as to adjust the air outlet amount of the air outlet of the valve body 1 or close the valve body 1;An indicating assembly is sleeved on the top of the valve body 1 and is connected with the valve body 1 in sliding mode, the end of the indicating assembly is connected with the side wall of the pressure regulating assembly in clamping mode, the pressure regulating assembly can be driven to move to open the valve body 1;The indicating assembly is connected with the top end of the pressure regulating assembly through the elastic member 8;When the valve body 1 is in the open state, the indicating assembly moves relative to the valve body 1 under the action of the elastic force of the elastic member 8, so that the gap is formed between the contact surface of the indicating assembly and the valve body 1.

[0046] In the example embodiment, the pressure regulating assembly comprises: a diaphragm assembly located in the middle of the valve body 1, dividing the valve body 1 into the pressure regulating chamber and the valve chamber in the vertical direction, and moving back and forth with the difference of the force between the pressure regulating chamber and the valve chamber; a moving assembly, the first end of the moving assembly is located outside the air inlet of the valve body 1, the moving assembly is rotationally connected with the bottom of the diaphragm assembly, and the movement of the diaphragm assembly can drive the first end of the moving assembly to move, so as to close or open the air inlet of the valve body 1.

[0047] In the example embodiment, the diaphragm assembly comprises: a diaphragm 14 arranged inside the valve body 1, dividing the valve body 1 into the pressure regulating chamber and the valve chamber in the vertical direction; a connecting rod 10 fixedly connected with the diaphragm 14 and moving with the movement of the diaphragm 14, one end of the connecting rod 10 is connected with the indicating assembly through the elastic member 8, the side wall of the connecting rod 10 is clamped with the indicating assembly, and the other end of the connecting rod 10 is rotationally connected with the moving assembly; a main spring 3 sleeved on the outer side wall of the connecting rod 10, one end of the main spring 3 is connected with the diaphragm 14, and the other end of the main spring 3 is connected with the valve body 1.

[0048] Specifically, the elastic member 8 can be a spring or a spring sheet, and the application does not limit the type of the elastic member 8.

[0049] Specifically, one end of the connecting rod 10 can be clamped with the elastic member 8, or the connecting rod 10 can be fixedly connected with the elastic member 8, or the elastic member 8 can be placed between the top end of the connecting rod and the indicating assembly, one end of the elastic member 8 abuts against the indicating assembly, and the other end of the elastic member 8 abuts against the connecting rod, for example, a buckle 4 can be arranged on the side wall of the connecting rod 10, the inner bottom of the indicating assembly is clamped on the bottom of the buckle 4, and the elastic member 8 is abutted on the buckle 4.

[0050] Specifically, the main spring 3 can be connected with the valve body through the pressure regulating cover 9, that is, the pressure regulating cover 9 is threadedly connected on the valve body 1, the compression degree of the main spring 3 can be adjusted by changing the length of the pressure regulating cover 9 screwed into the valve body, and then the adjusting pressure of the pressure regulating chamber can be adjusted.

[0051] In the example embodiment, the moving assembly comprises: a lever 11 rotationally connected inside the valve body 1 through a pin shaft 12, one end of the lever 11 is rotationally connected with the connecting rod 10; a push rod 13 slidingly arranged in the air inlet channel of the valve body 1, the first end of the push rod 13 is located outside the air inlet of the valve body 1, the other end of the push rod 13 is clamped with the other end of the lever 11, and the rotation of the lever 11 can drive the push rod 13 to reciprocate along the air inlet channel, so that the first end of the lever 11 closes or opens the air inlet of the valve body 1.

[0052] In the example embodiment, the undersize valve pad 17 and the sealing pad 15 are arranged at the first end of the push rod 13 to close or open the air inlet of the valve body 1.

[0053] In the example embodiment, the buckle 4 is fixed to the end of the connecting rod 10, the indicating assembly is buckled to the connecting rod 10 through the buckle 4, one end of the elastic member 8 is connected to the buckle 4, and the other end is connected to the indicating assembly. Specifically, the way that one end of the elastic member 8 is connected to the buckle 4 can be abutting, that is, a boss is arranged on the buckle, and the elastic member 8 is abutted on the top surface of the boss. Of course, the way that the elastic member 8 is connected to the buckle 4 can also be other ways, for example, direct connection, or indirect connection through an auxiliary member, and the like, which are not limited in the present application.

[0054] In the example embodiment, the indicating assembly comprises an indicating knob 5 sleeved on the top of the valve body 1 and slidably connected to the valve body 1, a round mark 6 installed on the top of the indicating knob 5, the middle part of the indicating knob 5 penetrating the top of the valve body 1 and being slidable relative to the valve body 1, the buckle 4 being located inside the indicating knob 5 and being slidable inside the indicating knob 5, the bottom of the indicating knob 5 buckling the buckle 4, and the elastic member 8 being located between the buckle 4 and the indicating knob 5.

[0055] In the example embodiment, a screw is arranged on the top of the valve body 1, one end of the main spring is abutted on the cover surface of the pressure regulating cover 9, the compressed degree of the main spring can be adjusted by rotating the pressure regulating cover 9, and then the adjusting pressure of the pressure regulating cavity is adjusted; a cover 7 is arranged inside the indicating knob 5 and moves with the indicating knob 5 to abut the elastic member 8.

[0056] In the example embodiment, a valve port member 16 is arranged at the inlet end of the valve body 1, and the end of the valve port member 16 is arranged opposite to the sealing pad 15.

[0057] Specifically, the valve port 16 and the sealing gasket 15 are arranged opposite each other. When the valve cavity is under-pressured, the pressure in the valve cavity is less than the pressure in the pressure regulating chamber. At this time, under the action of the pressure difference between the valve cavity and the pressure regulating chamber, the diaphragm 14 moves downward, the connecting rod 10 moves downward and drives the lever 11 to rotate clockwise. The lever 11 drives the push rod 13 to move to the right. At this time, the gap between the sealing gasket 15 and the valve port 16 increases, and the air intake of the valve body increases, thereby increasing the pressure in the valve cavity. When the valve cavity is under-pressured, the pressure in the valve cavity increases. When the pressure is high, the pressure inside the valve chamber is greater than the pressure in the regulating chamber. At this time, under the action of the pressure difference between the valve chamber and the regulating chamber, the diaphragm 14 moves upward. At the same time, the connecting rod 10 moves upward and drives the lever 11 to rotate counterclockwise. The lever 11 drives the push rod 13 to move to the left. At this time, the gap between the sealing gasket 15 and the valve port 16 decreases, and the air intake of the valve body decreases, thereby reducing the pressure inside the valve chamber. It can be seen that the gas pressure regulator provided in this application can realize the function of automatically adjusting the pressure inside the valve chamber.

[0058] In this example implementation, refer to Figure 1 , Figure 2 As shown, when valve body 1 is in the closed state, pulling indicator button 5 causes indicator button 5 to move upward. At this time, the bottom of indicator button 5 drives buckle 4 to move upward in the cavity of indicator button 5. At this time, the deformation of main spring 3 increases, buckle 4 drives connecting rod 10 to move upward, diaphragm 14 to move upward, connecting rod 10 moves upward and drives lever 11 to rotate counterclockwise and clockwise. Lever 11 drives push rod 13 to move to the left. At this time, underpressure valve pad 17 separates from the air inlet of valve body and opens valve cavity, allowing gas to enter valve cavity. Afterward, as the pressure in valve cavity gradually increases, until the pressure in pressure regulating cavity and pressure in valve cavity reach equilibrium. Specifically, the pressure in pressure regulating cavity can be adjusted by setting the specifications of main spring 3, or the pressure in pressure regulating cavity can be adjusted by adjusting the degree of compression of main spring 3 through pressure regulating cover 9. The principle behind the aforementioned balance is that the regulating pressure of the pressure regulating chamber consists of: the main spring 3 exerting a downward thrust on the diaphragm 14, and the connecting rod 10 mounted on the diaphragm 14 being subjected to its own weight. The pressure in the valve chamber is the pressure of the gas entering the valve chamber on the diaphragm 14. When balanced, the regulating pressure of the pressure regulating chamber is equal to the pressure in the valve chamber. The end of the push rod 13 connected to the lever 11, which is fitted with a sealing gasket 15, does not contact the end of the air inlet of the valve body 1. At this time, the valve body 1 is in a ventilated state. When the pressure in the valve chamber decreases, the diaphragm 14 loses its balance. The diaphragm 14 drives the connecting rod 10 to move downward. The bottom end of the connecting rod 10 presses down on the lever 11. At this time, the lever 11 rotates clockwise, and the end of the lever 11 that is engaged with the push rod 13 drives the push rod 13 to move to the right. At this time, the sealing gasket 15 mounted on the end of the push rod 13 gradually approaches the valve port 16 of the valve body 1 to reduce the gap between the sealing gasket 15 and the valve port 16, thereby reducing the amount of gas entering the valve body 1.

[0059] To further ensure the safety of the gas pressure regulator provided by the present application, when the valve cavity suddenly loses pressure, the pressure in the valve cavity is much smaller than the pressure in the pressure regulating cavity, at this time, the diaphragm 14 quickly moves downward under the action of the pressure difference between the valve cavity and the pressure regulating cavity, the connecting rod 10 moves downward and drives the lever 11 to rotate clockwise, the lever 11 drives the push rod 13 to move to the right, at this time, the under-pressure valve pad 16 contacts the gas inlet of the valve body 1, and under the pressure of the continuously entering gas at the gas inlet, the under-pressure valve pad 16 is in close contact with the gas inlet of the valve body 1, thereby realizing the function of sealing the gas inlet of the valve body 1, at this time, the valve body 1 is in a closed state. The above-mentioned state of sudden loss of pressure in the valve cavity can be caused by disconnection of the connecting pipeline between the gas pressure regulator and the gas stove.

[0060] Embodiment 2

[0061] On the basis of the above-mentioned embodiment 1, the present embodiment combines the drawings Figure 1 The technical solutions of the present application are further described in detail as follows:

[0062] Reference Figure 1 In the example embodiment shown, the present application provides a gas pressure regulator with valve position state indication, comprising: a valve body 1; a diaphragm 14 arranged inside the valve body 1 and dividing the valve body 1 into a pressure regulating cavity and a valve cavity in the vertical direction; a connecting rod 10 fixedly connected with the diaphragm 14 and moving up and down with the diaphragm; a lever 11 rotationally connected with the connecting rod 10; a push rod 13 clamped with the lever 11; the push rod 13 is used to adjust the opening degree of the pressure regulating valve port; a main spring 3 is arranged in the pressure regulating cavity and acts on the diaphragm 14 and the connecting rod 10; the connecting rod 10 moves against the elastic force of the main spring 3; a buckle 4 is cooperatively connected with the connecting rod 10, an indication button 5 is arranged between the buckle 4 and the connecting rod 10, a cover 7 and a round mark 6 are arranged on the indication button 5, and a supporting spring is arranged between the buckle 4 and the cover 7; a valve port piece 16 is arranged at the inlet end, and an under-pressure valve pad 17 and a sealing pad 15 are arranged on the push rod 13. When the valve is in an open state, the indication button 5 is in a valve open indication state; the valve body 1 can be composed of a valve cavity body and an upper cover 2 in a sealed connection, the diaphragm 14 can be arranged between the two to form a pressure regulating cavity and a valve cavity, and the indication button 5 can be sleeved on the outside of the upper cover 2; when the valve is in a closed state, the indication button 5 falls on the upper cover 2 and is in a valve closed indication state, and the user can accurately judge the real-time state of the valve opening and closing according to the state position of the indication button 5; when the valve is in an open state, pressing the indication button 5 will not cause the product to increase in pressure, and will not affect the performance of the gas pressure regulator.

[0063] In the example embodiment, as Figure 1As shown, the underpressure valve pad 17 mounted on the push rod 13 is in contact with the underpressure valve port. The diaphragm 14 and the connecting rod 10 are kept in the state shown in the figure under the action of the main spring 3. The indicator button 5 is on the upper cover 2 and the valve is in the closed state.

[0064] In this example implementation, such as Figure 2 As shown, to open the valve normally, the user needs to lift the indicator button 5 upwards. The indicator button 5 drives the buckle 4 to move upwards. The buckle 4 is assembled with the connecting rod 10, so they move upwards simultaneously. The connecting rod 10 drives the lever 11 to move upwards. The lever 11 is hinged to the valve body 1 through the pin 12. The upward movement of the lever 11 drives the push rod 13 to move towards the air inlet. The underpressure valve pad 17 disengages from the underpressure valve port, and the valve is in the open state. At this time, the indicator button 5 is suspended in the air to the valve open indication state under the action of the support spring.

[0065] In this example implementation, such as Figure 3 As shown, when the valve is in the open position, pressing indicator button 5 only compresses the support spring. After releasing the button, it springs back to the open position, without affecting the related pressure regulating components, the outlet pressure, or the performance of the gas pressure regulator. This solves the defects of hard connections and complies with relevant national standards.

[0066] The gas pressure regulator provided in this application has a reasonable design, a good visual experience, and provides convenience and user-friendliness. It adopts a motion connection method for the indicator button 5, so pressing it will not cause the pressure to rise, avoiding the occurrence of safety accidents and ensuring user safety. It completely solves the defects of the hard connection of the indicator button and meets the design standards.

[0067] In this exemplary embodiment, the gas pressure regulator disclosed in this invention includes: a valve body 1; a pressure regulating component disposed inside the valve body 1, dividing the valve body 1 into a pressure regulating chamber and a valve chamber, which moves back and forth according to the difference in force between the pressure regulating chamber and the valve chamber, for closing or opening the valve body 1; an indicator component sleeved on the top of the valve body 1, slidably connected to the valve body 1, its end engaging with the side wall of the pressure regulating component, which can drive the pressure regulating component to move to open the valve body 1; the indicator component is connected to the top end of the pressure regulating component through an elastic element 8; when the valve body 1 is in the open state, the indicator component moves relative to the valve body 1 under the elastic force of the elastic element 8, so that a gap is formed between the contact surface of the indicator component and the valve body 1. The gas pressure regulator provided in this application has a simple structure, and the state of the gas pressure regulator can be determined by whether there is a gap between the indicator component and the valve body 1; in addition, the use of a moving indicator button 5 ensures that pressing will not cause a pressure increase, thus ensuring user safety.

[0068] In another aspect, the application provides a gas pressure regulator device, which is installed with the above-mentioned gas pressure regulator.

[0069] In the present example embodiment, the pressure regulator provided by the application can be installed on various devices, such as oxygen cylinders, gas cylinders, fuel gas cylinders, etc. The application does not limit the application scenarios of the above-mentioned gas pressure regulator, and all devices that can use the pressure regulator provided by the application belong to the protection scope of the application.

[0070] It should be noted that the above-described embodiments are part of the embodiments of the application, rather than all the embodiments. Based on the embodiments in the application, all other embodiments obtained by a person of ordinary skill in the art without creative labor also belong to the protection scope of the application. In the present specification, each embodiment focuses on the differences from other embodiments, and the same or similar parts between the embodiments can be referred to each other.

Claims

1. A gas pressure regulator, characterized in that, include: Valve body (1); A pressure regulating assembly is disposed inside the valve body (1), dividing the valve body (1) into a pressure regulating chamber and a valve chamber. It moves back and forth according to the difference in force between the pressure regulating chamber and the valve chamber, so as to regulate the air output of the valve body (1) outlet or close the valve body (1). The pressure regulating assembly includes: a diaphragm assembly located in the middle of the valve body (1); the diaphragm assembly includes: a diaphragm (14) disposed inside the valve body (1); and a connecting rod (10) fixedly connected to the diaphragm (14) and movable as the diaphragm (14) moves. The indicating component includes: an indicating button (5), which is sleeved on the top of the valve body (1) and slidably connected to the valve body (1); a round mark (6), which is installed on the top of the indicating button (5); the middle part of the indicating button (5) passes through the top of the valve body (1) and can slide relative to the valve body (1); a buckle (4) is located inside the indicating button (5) and can slide inside the indicating button (5); the bottom of the indicating button (5) is engaged with the buckle (4); an elastic element (8) is located between the buckle (4) and the indicating button (5); the indicating component is sleeved on the top of the valve body (1) and slidably connected to the valve body (1); its end is engaged with the side wall of the pressure regulating component and can drive the pressure regulating component to move to open the valve body (1); the indicating component is connected to the top of the pressure regulating component through the elastic element (8); The buckle (4) is fixed to the end of the connecting rod (10). The indicator component is engaged with the connecting rod (10) by the buckle (4). One end of the elastic member (8) abuts against the buckle (4) and the other end abuts against the indicator component. When the valve body (1) is in the open state, the indicator component moves relative to the valve body (1) under the elastic force of the elastic member (8) so that a gap is formed between the contact surface of the indicator component and the valve body (1).

2. The gas pressure regulator according to claim 1, characterized in that, The voltage regulating component includes: The diaphragm assembly divides the valve body (1) into the pressure regulating chamber and the valve chamber in the vertical direction, and moves back and forth according to the difference in the force between the pressure regulating chamber and the valve chamber; The movable component has its first end located outside the air inlet of the valve body (1). The movable component is rotatably connected to the bottom of the diaphragm assembly. The movement of the diaphragm assembly can drive the first end of the movable component to move, so that the first end can adjust the air output of the air outlet of the valve body (1) or close the valve body (1).

3. The gas pressure regulator according to claim 2, characterized in that, The membrane assembly includes: The diaphragm (14) divides the valve body (1) into the pressure regulating chamber and the valve chamber in the vertical direction. The valve body (1) is composed of a valve chamber body and an upper cover (2) that are sealed together. The indicator button (5) is sleeved on the outside of the upper cover (2). One end of the connecting rod (10) is connected to the indicating component through the elastic element (8), its side wall is engaged with the indicating component, and its other end is rotatably connected to the moving component; The main spring (3) is sleeved on the outer wall of the connecting rod (10), with one end connected to the diaphragm (14) and the other end connected to the valve body (1).

4. The gas pressure regulator according to claim 3, characterized in that, The moving component includes: The lever (11) is rotatably connected inside the valve body (1) via a pin (12), and one end of the lever is rotatably connected to the connecting rod (10). A push rod (13) is slidably disposed in the air intake channel of the valve body (1). The first end of the push rod (13) is located outside the air intake port of the valve body (1), and the other end is engaged with the other end of the lever (11). The rotation of the lever (11) can drive the push rod (13) to move back and forth along the air intake channel so that the first end of the push rod (13) can adjust the air output of the air outlet of the valve body (1) or close the valve body (1).

5. The gas pressure regulator according to claim 4, characterized in that, Also includes: The undervoltage valve gasket (17) and the sealing gasket (15) are both located at the first end of the push rod (13). The underpressure valve pad (17) is used so that when the valve chamber is depressurized, the diaphragm (14) drives the connecting rod (10) to move, the connecting rod (10) pushes the lever (11) to rotate, and then drives the underpressure valve pad (17) to close the air inlet of the valve body (1); The sealing gasket (15) is used to adjust the pressure of the air outlet of the valve body (1).

6. The gas pressure regulator according to claim 3, characterized in that, Also includes: The pressure regulating cover (9) is threaded on the top of the valve body (1). One end of the main spring (3) abuts against the cover surface of the pressure regulating cover (9). By rotating the pressure regulating cover (9), the degree of compression of the main spring (3) can be adjusted, thereby adjusting the regulating pressure of the pressure regulating chamber. The cover (7) is disposed inside the indicator button (5) and moves with the movement of the indicator button (5) to abut against the elastic member (8).

7. The gas pressure regulator according to claim 5, characterized in that, Also includes: A valve port (16) is disposed at the inlet end of the valve body (1), and the end of the valve port (16) is disposed opposite to the sealing gasket (15).

8. A voltage regulator device, characterized in that, It is equipped with a gas pressure regulator according to any one of claims 1-7.

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