Gas pressure regulating device capable of improving sealing performance

Abstract

The utility model discloses a fuel gas pressure regulating device capable of improving sealing performance, which relates to the technical field of fuel gas equipment and comprises a shell, an input pipe is mounted at the input end of one side of the shell, and an output pipe is mounted at the output end of the other side of the shell; first flange plates are installed at the ends, away from the shell, of the input pipe and the output pipe. The first flange plate, the first sealing ring, the second flange plate and the second sealing ring are installed, the other side of the shell is connected with the input pipe, it is guaranteed that the interior of the device is communicated, the output pipe is connected with the shell, gas output is facilitated, one end of the input pipe and one end of the output pipe are fixedly connected with the first flange plate, and the first flange plate is connected with the first sealing ring; and the first flange plate and the second flange plate are connected through the connecting screw rod, the second flange plate and the second sealing ring are fixedly connected, the first sealing ring and the second sealing ring extrude each other, the sealing performance of the device is guaranteed, and the situation of leakage of the device is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of gas equipment, in particular to a gas pressure regulating device with improved sealing performance. Background Art

[0002] The gas pressure regulator can also be called a pressure reducing valve. As a special valve on the gas pipeline, the gas pressure regulator is a device that can keep the downstream pressure stable regardless of how the gas flow and upstream pressure change during use.

[0003] Patent document CN211875227U discloses "a gas pressure regulating device, comprising a bottom plate, a universal wheel fixedly connected to the bottom of the bottom plate, a brake pad movably connected to the outer wall of the universal wheel, a hydraulic cylinder fixedly connected to the top of the bottom plate, a hydraulic rod fixedly connected to the output end of the hydraulic cylinder, a workbench fixedly connected to one end of the hydraulic rod, a support platform fixedly connected to the top of the workbench, a support rod fixedly connected to the top of the support platform, and a first bearing fixedly connected to the outer wall of the support rod";

[0004] The above-mentioned gas pressure regulating device lacks a structure for improving the sealing performance, and leakage is likely to occur inside the device, and gas leakage is likely to occur. Utility Model Content

[0005] The utility model aims to provide a gas pressure regulating device with improved sealing performance, so as to solve the technical problems that the gas pressure regulating device in the prior art lacks a structure to improve the sealing performance, the device is prone to leakage, and gas leakage is prone to occur.

[0006] To achieve the above object, the utility model provides the following technical solution: a gas pressure regulating device with improved sealing performance, comprising a shell, an input pipe is installed at one input end of the shell, and an output pipe is installed at the other output end of the shell;

[0007] A first flange is installed at one end of the input pipe and the output pipe away from the shell, a first sealing ring is installed on one side of the first flange, a connecting screw is installed through the inner side of the first flange, the connecting screw passes through the inner side of the first sealing ring, a fastening ring is movably installed on the outer side of the connecting screw through a thread, a second flange is movably installed on the outer side of the connecting screw, the fastening ring abuts against one side of the second flange, a second sealing ring is installed on one side of the second flange, the second sealing ring abuts against one side of the first sealing ring, and an air supply pipe is installed on the inner side of the second flange.

[0008] Preferably, an isolation plate is installed on the inner side of the shell, and a through opening is opened on the inner side of the isolation plate.

[0009] Preferably, two groups of pressure sensors are installed on the top wall and the bottom of the shell, and a pressure display is installed at one end of the two groups of pressure sensors.

[0010] Preferably, sealing rings are installed on the top wall and the bottom of the shell, and a screw rod is movably installed on the inner side of the sealing ring through a thread.

[0011] Preferably, a piston is installed at one end of the screw rod, and the piston abuts against the top and bottom of the through-hole.

[0012] Preferably, a handle is installed on the other end of the screw rod.

[0013] Preferably, a limit frame is installed on the top wall of the shell, and the limit frame is located on one side of the pressure display. A guide ring is installed through the top wall of the limit frame, and the screw rod passes through the inner side of the guide ring.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The utility model is equipped with a first flange, a first sealing ring, a second flange and a second sealing ring. The other side of the shell is connected to the input pipe to ensure that the inside of the device is connected. The output pipe is connected to the shell to facilitate gas output. One end of the input pipe and the output pipe is fixedly connected to the first flange, and the first flange is connected to the first sealing ring to ensure the stability of the first sealing ring. The connecting screw connects the first flange and the second flange, and the second flange is fixedly connected to the second sealing ring. The first sealing ring and the second sealing ring are squeezed against each other to ensure the sealing of the device and avoid leakage of the device.

[0016] 2. The utility model is equipped with a screw rod, and the housing fixes the top and bottom sealing rings to ensure the stability of the sealing rings. The sealing ring limits the inner screw rod. The user grasps the column handle to rotate the screw rod, and the movement of the screw rod drives the piston to move. The user adjusts the distance between the piston and the through-hole as needed, which is convenient for the user to adjust the air pressure of the device as needed. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the cross-sectional structure of the utility model;

[0018] Figure 2 It is a front structural schematic diagram of the utility model;

[0019] Figure 3 This is a schematic diagram of the output tube structure of the utility model;

[0020] Figure 4 This is a schematic diagram of the first sealing ring structure of the utility model.

[0021] In the figure: 1. shell; 2. isolation plate; 3. through-hole; 4. pressure sensor; 5. pressure display; 6. input pipe; 7. output pipe; 8. sealing ring; 9. limit frame; 10. guide ring; 11. screw rod; 12. handle; 13. piston; 14. first flange; 15. first sealing ring; 16. second sealing ring; 17. connecting screw; 18. fastening ring; 19. second flange; 20. gas pipe. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] See also Figure 1 , Figure 2 , Figure 3 and Figure 4 The utility model provides an embodiment: a gas pressure regulating device with improved sealing performance, comprising a shell 1, an input pipe 6 is installed at an input end of one side of the shell 1, an output pipe 7 is installed at an output end of the other side of the shell 1, a first flange 14 is installed at one end of the input pipe 6 and the output pipe 7 away from the shell 1, a first sealing ring 15 is installed on one side of the first flange 14, a connecting screw 17 is installed through the inner side of the first flange 14, the connecting screw 17 penetrates the inner side of the first sealing ring 15, a fastening ring 18 is movably installed on the outer side of the connecting screw 17 through a thread, a second flange 19 is movably installed on the outer side of the connecting screw 17, the fastening ring 18 abuts against one side of the second flange 19, a second sealing ring 16 is installed on one side of the second flange 19, the second sealing ring 16 abuts against one side of the first sealing ring 15, and a gas delivery pipe 20 is installed on the inner side of the second flange 19;

[0025] The other side of the shell 1 is connected to the input pipe 6 to ensure that the inside of the device is connected. The output pipe 7 is connected to the shell 1 to facilitate the gas output. One end of the input pipe 6 and the output pipe 7 are fixedly connected to the first flange 14. The first flange 14 is connected to the first sealing ring 15 to ensure the stability of the first sealing ring 15. The connecting screw 17 connects the first flange 14 and the second flange 19. The second flange 19 is fixedly connected to the second sealing ring 16. The first sealing ring 15 and the second sealing ring 16 are squeezed against each other to ensure the sealing of the device and avoid leakage of the device. The outer side of the connecting screw 1 is connected to the fastening ring 1 through a thread to ensure the stability of the structure of the first flange 14 and the second flange 19.

[0026] An isolation plate 2 is installed on the inner side of the housing 1, and a through hole 3 is opened on the inner side of the isolation plate 2;

[0027] The shell 1 fixes the inner isolation plate 2 to ensure the stability of the isolation plate 2. A through hole 3 is provided on the inner side of the isolation plate 2 to facilitate the passage of gas.

[0028] Two groups of pressure sensors 4 are installed on the top wall and the bottom of the housing 1, and a pressure display 5 is installed at one end of the two groups of pressure sensors 4;

[0029] The shell 1 fixes the top and bottom pressure sensors 4 to ensure the stability of the pressure sensor 4. The pressure sensor 4 is connected to the pressure display 5. The pressure sensor 4 is used to detect the air pressure at the input and output ends, and the pressure display 5 displays the air pressure data.

[0030] The top wall and bottom of the housing 1 are provided with a sealing ring 8, the inner side of the sealing ring 8 is provided with a screw rod 11 movably provided with a thread, one end of the screw rod 11 is provided with a piston 13, the piston 13 is against the top and bottom of the through hole 3, and the other end of the screw rod 11 is provided with a handle 12;

[0031] The shell 1 fixes the top and bottom sealing rings 8 to ensure the stability of the sealing rings 8. The sealing rings 8 limit the inner screw 11. The user grasps the handle 12 to rotate the screw 11. The movement of the screw 11 drives the piston 13 to move. The user adjusts the distance between the piston 13 and the through-hole 3 as needed, which is convenient for the user to adjust the air pressure of the device as needed.

[0032] A limit frame 9 is installed on the top wall of the housing 1. The limit frame 9 is located on one side of the pressure display 5. A guide ring 10 is installed through the top wall of the limit frame 9. A screw rod 11 passes through the inner side of the guide ring 10.

[0033] The housing 1 fixes the limiting frame 9 on the top to ensure the stability of the limiting frame 9. The limiting frame 9 fixes the inner guide ring 10. The guide ring 10 limits the inner screw rod 11 through threads, making it convenient for the guide ring 10 to guide the screw rod 11 to move.

[0034] Working principle: The other side of the shell 1 is connected to the input pipe 6 to ensure that the inside of the device is connected, and the output pipe 7 is connected to the shell 1 to facilitate the gas output. One end of the input pipe 6 and the output pipe 7 is fixedly connected to the first flange 14, and the first flange 14 is connected to the first sealing ring 15 to ensure the stability of the first sealing ring 15. The connecting screw 17 connects the first flange 14 and the second flange 19, and the second flange 19 is fixedly connected to the second sealing ring 16. The first sealing ring 15 and the second sealing ring 16 squeeze each other to ensure the sealing of the device and avoid leakage of the device. The outer side of the connecting screw 1 is connected to the fastening ring 1 through a thread to ensure the first The flange 14 and the second flange 19 have stable structures. The shell 1 fixes the top and bottom pressure sensors 4 to ensure the stability of the pressure sensor 4. The pressure sensor 4 is connected to the pressure display 5. The pressure sensor 4 is used to detect the air pressure at the input and output ends. The pressure display 5 displays air pressure data. The shell 1 fixes the top and bottom sealing rings 8 to ensure the stability of the sealing rings 8. The sealing rings 8 limit the inner screw rod 11. The user grasps the handle 12 to rotate the screw rod 11. The movement of the screw rod 11 drives the piston 13 to move. The user adjusts the distance between the piston 13 and the through-hole 3 as needed, which is convenient for the user to adjust the air pressure of the device as needed.

[0035] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention, and any figure mark in the claims should not be regarded as limiting the claims involved.

Claims

1. A gas pressure regulating device with improved sealing performance, characterized in that: It comprises a shell (1), an input pipe (6) is installed at an input end on one side of the shell (1), and an output pipe (7) is installed at an output end on the other side of the shell (1); A first flange (14) is installed at one end of the input pipe (6) and the output pipe (7) away from the housing (1); a first sealing ring (15) is installed on one side of the first flange (14); a connecting screw (17) is installed through the inner side of the first flange (14); the connecting screw (17) passes through the inner side of the first sealing ring (15); a fastening ring (18) is movably installed on the outer side of the connecting screw (17) through a thread; a second flange (19) is movably installed on the outer side of the connecting screw (17); the fastening ring (18) abuts against one side of the second flange (19); a second sealing ring (16) is installed on one side of the second flange (19); the second sealing ring (16) abuts against one side of the first sealing ring (15); and a gas supply pipe (20) is installed on the inner side of the second flange (19).

2. A gas pressure regulating device for improving sealing performance according to claim 1, characterized in that: An isolation plate (2) is installed on the inner side of the shell (1), and a through opening (3) is opened on the inner side of the isolation plate (2).

3. A gas pressure regulating device with improved sealing performance according to claim 1, characterized in that: Two groups of pressure sensors (4) are installed on the top wall and the bottom of the housing (1), and a pressure display (5) is installed at one end of the two groups of pressure sensors (4).

4. A gas pressure regulating device with improved sealing performance according to claim 1, characterized in that: The top wall and the bottom of the housing (1) are provided with sealing rings (8), and a screw rod (11) is movably provided on the inner side of the sealing ring (8) via a thread.

5. A gas pressure regulating device with improved sealing performance according to claim 4, characterized in that: A piston (13) is installed at one end of the screw rod (11), and the piston (13) abuts against the top and bottom of the through-hole (3).

6. A gas pressure regulating device with improved sealing performance according to claim 4, characterized in that: A handle (12) is installed at the other end of the screw rod (11).

7. A gas pressure regulating device with improved sealing performance according to claim 4, characterized in that: A limit frame (9) is installed on the top wall of the housing (1), and the limit frame (9) is located on one side of the pressure display (5). A guide ring (10) is installed through the top wall of the limit frame (9), and the screw rod (11) passes through the inner side of the guide ring (10).

Images