Natural gas filling pressure regulator

Abstract

The utility model relates to the technical field of natural gas pressure regulators, in particular to a natural gas filling pressure regulator which comprises a regulator body. A plurality of first sealing rings are embedded in the arc-shaped inner wall of the sealing groove, and a plurality of second sealing rings are embedded in the arc-shaped outer wall of the sealing groove; a connecting part is arranged on the front side of the outlet pipe; on one hand, the horizontal position of the connecting part can be conveniently adjusted by rotating the threaded rod, so that the overall length of the pressure regulator is increased, and the pressure regulator can be better connected with a pipeline through the connecting part; on the other hand, the connecting pipe is inserted into the sealing groove, under the action of a plurality of first sealing rings and second sealing rings, a better sealing effect can be achieved between the connecting pipe and the sealing groove, under the action of a plurality of sealing comb teeth, the air tightness between the connecting pipe and the sealing groove is further improved, and due to the design of various sealing modes, the sealing effect is good. And the connection sealing performance between the connecting pipe and the sealing groove is improved, so that the use safety of the device is improved.

Description

Technical Field

[0001] This utility model relates to the field of natural gas pressure regulator technology, specifically a natural gas filling pressure regulator. Background Technology

[0002] Natural gas filling refers to the process of filling natural gas into specific containers. A natural gas pressure regulator (also known as a natural gas pressure adjuster) is a device used to regulate natural gas pressure. Its main function is to reduce and stabilize the upstream natural gas pressure to a suitable downstream pressure to ensure the safe and efficient operation of the natural gas supply system. During the natural gas filling process, maintaining stable natural gas pressure is crucial for ensuring safety and efficiency. The pressure regulator can regulate the natural gas pressure in the upstream pipeline, reducing and stabilizing it to a suitable downstream pressure, thereby meeting the pressure stability requirements during the filling process.

[0003] Utility model patent application number CN202222972939.7 discloses a gas pressure regulator. The gas pressure regulator includes a regulator body with an outlet and an adjustment component at both ends. The adjustment component includes a fixed pipe, an outer pipe, and an inner pipe. The fixed pipe is welded to the outer pipe and connected to the inner pipe via the outer pipe. A support arm is welded to the inner pipe, which is connected to a rotating disk via the support arm. The rotating disk has a first connector and a second connector, both ends of which are threaded. The inner pipe has a threaded structure, and the first and second connectors are threaded to the inner pipe. By incorporating the adjustment component, the overall length of the gas pressure regulator can be adjusted by rotating a screw when needed, thus better meeting the operational needs under different conditions and improving the practicality of the gas pressure regulator.

[0004] Although the gas pressure regulator allows for convenient adjustment of its overall length, it still has the following problems in actual use: The connection between the outer and inner pipes is equipped with rubber sheets, and the dimensions and structures of the outer and inner pipes are matched. However, the sealing effect of the rubber sheets only located between the outer and inner pipes is limited, making it difficult to achieve an effective seal at the connection and thus failing to guarantee the safety of the gas pressure regulator. Therefore, we propose a natural gas filling pressure regulator. Utility Model Content

[0005] The purpose of this invention is to provide a natural gas filling pressure regulator to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A natural gas filling pressure regulator, including a body, a membrane disc is installed on the top of the body, an inlet pipe is installed on the rear end of the body;

[0008] An outlet pipe is installed on the front end of the body, a sealing groove is formed on the front end of the outlet pipe, a plurality of first sealing rings are embedded on the arc-shaped inner wall of the sealing groove, a plurality of second sealing rings are embedded on the arc-shaped outer wall of the sealing groove; the arc-shaped inner wall and the arc-shaped outer wall of the sealing groove are both provided with ring grooves near the front end edges, and a plurality of sealing comb teeth are fixed in the ring grooves; two first ear plates are fixed on the outer wall of the outlet pipe;

[0009] A connecting part is arranged on the front side of the outlet pipe, the connecting part includes a connecting pipe which is inserted into the sealing groove and is in sliding connection with the sealing groove, the first sealing ring and the second sealing ring abut against the inner wall and the outer wall of the connecting pipe respectively, two second ear plates are fixed on the outer wall of the connecting pipe near the front end, a threaded rod is rotatably installed on the rear end of the lower second ear plate, and the threaded rod passes through the lower first ear plate and is in threaded connection with the first ear plate; a flange plate is coaxially fixed on the front end of the connecting pipe.

[0010] Preferably, an installation groove is formed on the front end face of the flange plate, an installation ring is fixed at the installation groove, a pipe body is coaxially fixed on the rear end of the installation ring, the pipe body is inserted into the connecting pipe, and a plurality of filter screens are fixed on the inner wall of the pipe body.

[0011] Preferably, the cross-sectional shape of the pipe body is annular, and the size of the pipe body is matched with the size of the inner cavity of the connecting pipe.

[0012] Preferably, a plurality of notches are formed on the outer wall of the pipe body, and the notches are located between adjacent two filter screens.

[0013] Preferably, a regulating head is coaxially and key-connected on the rear end of the threaded rod, a bearing is installed on the front end of the threaded rod, and the front end of the threaded rod is rotatably connected with the second ear plate through the bearing.

[0014] Preferably, a guide rod is fixed at the upper second ear plate, and the guide rod passes through the first ear plate and is in sliding connection with the first ear plate.

[0015] Preferably, the cross-sectional shape of the first sealing ring and the second sealing ring is annular, and the first sealing ring and the second sealing ring are both made of rubber material.

[0016] Preferably, the cross-sectional shape of the sealing comb tooth is conical, and the sealing comb tooth is formed by a turning and milling process.

[0017] Compared with the prior art, the natural gas filling pressure regulator has the following beneficial effects:

[0018] By setting the outlet pipe and the connecting part: on the one hand, by rotating the threaded rod, the horizontal position of the connecting part is adjusted, thereby improving the overall length of the pressure regulator, and facilitating the pressure regulator to better connect the pipeline through the connecting part; on the other hand, the connecting pipe is inserted into the sealing groove, and under the action of the plurality of first sealing rings and second sealing rings, a better sealing effect can be achieved between the connecting pipe and the sealing groove, and under the action of the plurality of sealing comb teeth, the air tightness between the connecting pipe and the sealing groove is further increased, the design of multiple sealing types improves the connection sealing between the connecting pipe and the sealing groove, thereby increasing the use safety of the device. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the embodiment 1 of the utility model;

[0020] Figure 2 It is a partial structure sectional view of the embodiment 1 of the utility model;

[0021] Figure 3 It is a structure sectional view of the outlet pipe in the embodiment 1 of the utility model;

[0022] Figure 4 It is a schematic diagram of the enlarged structure of the A part in the embodiment 1 of the utility model; Figure 3

[0023] Figure 5 It is an explosion structure schematic diagram of the connecting part in the embodiment 2 of the utility model;

[0024] In the drawing:

[0025] 1, the body; 10, the inlet pipe; 11, the membrane disc; 12, the outlet pipe; 120, the sealing groove; 121, the ring groove; 13, the first ear plate; 14, the first sealing ring; 15, the second sealing ring; 16, the sealing comb tooth;

[0026] 2, the connecting part; 20, the connecting pipe; 21, the second ear plate; 22, the guide rod; 23, the threaded rod; 230, the bearing; 24, the adjusting head; 25, the flange plate; 250, the installation groove; 26, the pipe body; 260, the notch; 27, the mounting ring; 28, the filter screen. DETAILED DESCRIPTION

[0027] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model, obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0028] Embodiment 1​

[0029] Referring to Figures 1-4 As shown in the figure, a natural gas filling pressure regulator comprises a body 1, a diaphragm disc 11 is mounted on the top of the body 1, an inlet pipe 10 is mounted on the rear end of the body 1, an outlet pipe 12 is mounted on the front end of the body 1, a sealing groove 120 is formed on the front end of the outlet pipe 12, a plurality of first sealing rings 14 are embedded on the arc-shaped inner wall of the sealing groove 120, a plurality of second sealing rings 15 are embedded on the arc-shaped outer wall of the sealing groove 120, a ring groove 121 is formed on the arc-shaped inner wall and the arc-shaped outer wall of the sealing groove 120 near the front end edge, a plurality of sealing comb teeth 16 are fixed in the ring groove 121, two first lugs 13 are fixed on the outer wall of the outlet pipe 12, a connecting part 2 is arranged on the front side of the outlet pipe 12, the connecting part 2 comprises a connecting pipe 20 which is inserted into the sealing groove 120 and is in sliding connection with the sealing groove 120, the first sealing ring 14 and the second sealing ring 15 abut against the inner wall and the outer wall of the connecting pipe 20 respectively, two second lugs 21 are fixed on the outer wall of the connecting pipe 20 near the front end, a threaded rod 23 is rotatably mounted on the rear end of the lower second lug 21, the threaded rod 23 penetrates through the lower first lug 13 and is in threaded connection with the first lug 13, and a flange plate 25 is coaxially fixed on the front end of the connecting pipe 20.

[0030] In this embodiment, the rear end of the threaded rod 23 is coaxially keyed connected with an adjusting head 24, the front end of the threaded rod 23 is mounted with a bearing 230, and the front end of the threaded rod 23 is rotatably connected with the second lug 21 through the bearing. The adjusting head 24 facilitates the rotation of the threaded rod 23, thereby improving the convenience of operation, and the bearing 230 supports and supports the rotation of the threaded rod 23.

[0031] In this embodiment, the upper second lug 21 is fixed with a guide rod 22, the guide rod 22 penetrates through the first lug 13 and is in sliding connection with the first lug 13. The guide rod 22 plays a guiding role in the horizontal movement of the connecting part 2, thereby ensuring the stability of the connecting part 2 during adjustment.

[0032] In this embodiment, the cross-sectional shape of the first sealing ring 14 and the second sealing ring 15 is annular, and the first sealing ring 14 and the second sealing ring 15 are both made of rubber material. The first sealing ring 14 and the second sealing ring 15 made of rubber material have better sealing effect, thereby ensuring the sealing effect of the connecting pipe 20.

[0033] In this embodiment, the cross-sectional shape of the sealing comb tooth 16 is conical, and the sealing comb tooth 16 is formed by turning and milling process. The conical sealing comb tooth 16 has better air tightness, and the turning and milling process ensures the machining precision of the sealing comb tooth 16.

[0034] In specific use, the user first rotates the adjusting head 24, the adjusting head 24 drives the threaded rod 23 to rotate, with the rotation of the threaded rod 23, the connecting part 2 moves to the front side, at this time, the connecting pipe 20 slides along the sealing groove 120, when the connecting pipe 20 drives the flange plate 25 to move to the appropriate position, the user stops rotating the adjusting head 24, at this time, under the action of the first sealing ring 14, the second sealing ring 15 and the sealing comb 16, the connecting pipe 20 and the sealing groove 120 will not leak.

[0035] Embodiment 2

[0036] Please refer to Figure 5 The embodiment provides the following technical scheme on the basis of the embodiment 1: the front end face of the flange plate 25 is provided with a mounting groove 250, the mounting groove 250 is fixedly provided with a mounting ring 27, the rear end of the mounting ring 27 is coaxially fixedly provided with a pipe body 26, the pipe body 26 is inserted into the connecting pipe 20, and the inner wall of the pipe body 26 is fixedly provided with a plurality of filter screens 28.

[0037] In the embodiment, the cross-sectional shape of the pipe body 26 is annular, and the size of the pipe body 26 is matched with the size of the inner cavity of the connecting pipe 20. The design is beneficial to the matching installation of the pipe body 26 in the opening of the connecting pipe 20, so that the natural gas can pass through the pipe body 26.

[0038] In the embodiment, the outer wall of the pipe body 26 is provided with a plurality of notches 260, and the notches 260 are located between adjacent two filter screens 28. The notches 260 are arranged to facilitate the cleaning of the filter screens 28 in the later period, and meet the maintenance requirements in the later period.

[0039] It can be understood that the filter screen 28 arranged in the embodiment can filter the passing natural gas, can intercept impurities in the natural gas, avoids that these potential harmful substances enter downstream equipment or pipeline systems, can cause blockage, wear and even safety hazards, and improves the operation efficiency and reliability of the whole system.

[0040] The basic principle, main characteristics and advantages of the utility model are shown and described. It should be understood by those skilled in the art that the utility model is not limited by the above embodiments, the above embodiments and the description in the specification are only preferred examples of the utility model, and are not used to limit the utility model, various changes and improvements of the utility model can be made without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed. The protection scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A natural gas filling pressure regulator comprising a body (1), a diaphragm disc (11) mounted on the top of the body (1), and an inlet pipe (10) mounted on the rear end of the body (1), characterized in that: a outlet pipe (12) is mounted on the front end of the body (1), the front end of the outlet pipe (12) is provided with a sealing groove (120), a plurality of first sealing rings (14) are embedded on the arc-shaped inner wall of the sealing groove (120), and a plurality of second sealing rings (15) are embedded on the arc-shaped outer wall of the sealing groove (120); the arc-shaped inner wall and the arc-shaped outer wall of the sealing groove (120) are both provided with ring grooves (121) near the front end edges, and a plurality of sealing comb teeth (16) are fixed in the ring grooves (121); two first lugs (13) are fixed on the outer wall of the outlet pipe (12); a connecting part (2) is arranged on the front side of the outlet pipe (12), the connecting part (2) comprises a connecting pipe (20) inserted into the sealing groove (120) and in sliding connection with the sealing groove (120), the first sealing ring (14) and the second sealing ring (15) abut against the inner wall and the outer wall of the connecting pipe (20) respectively, two second lugs (21) are fixed on the outer wall of the connecting pipe (20) near the front end, the rear end of the lower second lug (21) is rotatably mounted with a threaded rod (23), the threaded rod (23) penetrates through the lower first lug (13) and is in threaded connection with the first lug (13); and a flange plate (25) is coaxially fixed on the front end of the connecting pipe (20).

2. The natural gas charge pressure regulator of claim 1, wherein: A mounting groove (250) is formed on the front end face of the flange plate (25), a mounting ring (27) is fixed at the mounting groove (250), a pipe body (26) is coaxially fixed on the rear end of the mounting ring (27), the pipe body (26) is inserted into the connecting pipe (20), and a plurality of filter screens (28) are fixed on the inner wall of the pipe body (26).

3. The natural gas charge pressure regulator of claim 2, wherein: The cross-sectional shape of the pipe body (26) is annular, and the size of the pipe body (26) is matched with the size of the inner cavity of the connecting pipe (20).

4. The natural gas charge pressure regulator of claim 2, wherein: A plurality of notches (260) are formed on the outer wall of the pipe body (26), and the notches (260) are located between adjacent two filter screens (28).

5. The natural gas charge pressure regulator of claim 1, wherein: A regulating head (24) is coaxially keyed connected on the rear end of the threaded rod (23), a bearing (230) is mounted on the front end of the threaded rod (23), and the front end of the threaded rod (23) is rotatably connected with the second lug (21) through the bearing.

6. The natural gas charge pressure regulator of claim 1, wherein: A guide rod (22) is fixed at the upper second lug (21), the guide rod (22) penetrates through the first lug (13) and is in sliding connection with the first lug (13).

7. The natural gas charge pressure regulator of claim 1, wherein: The cross-sectional shape of the first sealing ring (14) and the second sealing ring (15) is annular, and the first sealing ring (14) and the second sealing ring (15) are both made of rubber material.

8. The natural gas charge pressure regulator of claim 1, wherein: The cross-sectional shape of the sealing comb tooth (16) is conical, and the sealing comb tooth (16) is formed by turning and milling process.

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