Pressure regulating assembly of gas flowmeter

Abstract

The utility model provides a pressure regulating assembly of a gas flow meter, which comprises a gas flow meter pipe body, first flanges are arranged at two ends of the gas flow meter pipe body, a second flange is arranged on one first flange through a plurality of groups of bolts, a reducer pipe is arranged on one surface of the second flange deviating from the first flange, and the reducer pipe is connected with the gas flow meter pipe body. A connecting pipe is installed at the end, away from the second flange, of the reducer pipe, a pressure regulating valve is arranged on the side, away from the reducer pipe, of the connecting pipe, the end, away from the reducer pipe, of the connecting pipe is in threaded connection with a gas outlet in the pressure regulating valve, and a gas inlet in the pressure regulating valve is used for being connected with a gas conveying pipe. An air outlet in the pressure regulating valve is sleeved with a ring, the edge of one side face of the ring is annularly and equidistantly connected with three jacking screws in a threaded mode, and the end, close to the reducer pipe, of the connecting pipe is sleeved with a supporting ring fixedly connected with the connecting pipe; the pressure regulating valve has the advantages that the orientation of the air inlet of the pressure regulating valve can be adjusted according to needs.

Description

Technical Field

[0001] The utility model relates to a pressure regulating component of a gas flow meter, belonging to the field of flow meters. Background Art

[0002] A pressure regulating valve is installed at the air inlet end of the gas flow meter tube body to facilitate the use of the pressure regulating valve to adjust the air inlet pressure. The connecting pipe installed at the air inlet end of the gas flow meter tube body is connected to the air outlet of the pressure regulating valve by a threaded connection, which is a common connection method for connecting the pressure regulating valve and the gas flow meter tube body. After the pressure regulating valve is threadedly connected to the connecting pipe on the air inlet end of the gas flow meter tube body, the air inlet of the pressure regulating valve will not be in the required direction, so that the air inlet of the pressure regulating valve cannot be aligned with the gas pipe. It is necessary to adjust the layout path of the gas pipe, which increases the difficulty of installation. Therefore, it is necessary to design a pressure regulating component of a gas flow meter that can adjust the direction of the air inlet of the pressure regulating valve according to needs. Utility Model Content

[0003] In view of the deficiencies in the prior art, the present invention aims to provide a pressure regulating assembly for a gas flow meter to solve the problems raised in the above-mentioned background technology. The present invention can adjust the direction of the air inlet of the pressure regulating valve as needed.

[0004] In order to achieve the above-mentioned purpose, the present invention is implemented through the following technical solutions: a pressure regulating assembly of a gas flow meter, including a gas flow meter tube body, both ends of the gas flow meter tube body are installed with a first flange, one of the first flanges is installed with a second flange by multiple sets of bolts, a reducer is installed on the side of the second flange away from the first flange, a connecting pipe is installed on the end of the reducer away from the second flange, a pressure regulating valve is provided on the side of the connecting pipe away from the reducer, the end of the connecting pipe away from the reducer is threadedly connected to the air outlet on the pressure regulating valve, the air inlet on the pressure regulating valve is used to connect the gas delivery pipe, the air outlet on the pressure regulating valve is provided with a ring, and three top pressure screws are connected in an annular equidistant thread at the edge of one side of the ring, and a support ring is provided on the end of the connecting pipe close to the reducer that is connected and fixed to the connecting pipe, and one end of the top pressure screw is in contact with the support ring.

[0005] Furthermore, the ring has three holes equidistantly arranged in a circular shape on one side facing the pressure regulating valve, and a positioning frame is provided on the side of the hole facing the support ring. The positioning frame is connected and fixed to the ring, and a positioning block is inserted in the positioning frame. The positioning block has a screw hole aligned with the hole on one side, and the pressure screw passes through the hole and is threaded into the screw hole.

[0006] Furthermore, the cross section of the positioning frame is rectangular, and the cross section of the positioning block is rectangular.

[0007] Furthermore, a side of the support ring facing the ring is recessed to form an annular groove, a detachable rubber ring is installed in the annular groove, and one end of the pressing screw is in contact with the rubber ring.

[0008] Furthermore, a plurality of pin holes are evenly formed in the annular groove, and a plurality of rubber heads matching the pin holes are evenly fixed on one side of the rubber ring facing the pin holes, and the rubber heads are inserted into the pin holes.

[0009] Furthermore, the outer surface of the air outlet is processed into six planes in a circular shape and equidistantly, and the air outlet is arranged perpendicular to the air inlet.

[0010] Beneficial effects of the utility model:

[0011] 1. Thread one end of the connecting pipe into the air outlet of the pressure regulating valve so that the direction of the air inlet of the pressure regulating valve meets the needs of the gas pipeline layout. Then turn the three pressing screws on the ring so that all three pressing screws are against the support ring. With the support of the pressing screws, there is a force between the connecting pipe and the air outlet of the pressure regulating valve, so that the connecting pipe and the pressure regulating valve are stably connected, and the direction of the air inlet of the pressure regulating valve can be adjusted as needed.

[0012] 2. Insert the positioning block with screw holes into the positioning frame to connect the positioning block with the ring. When one end of the top pressure screw is against the support ring, the positioning block is restricted in the space formed by the positioning frame and the ring. That is, the position of the positioning block is restricted under the force between the top pressure screw and the support ring. There is no need to process screw holes on the ring, which is beneficial to reducing the thickness of the ring. At the same time, when the screw holes are damaged, it will not affect the normal use of the pressure regulating valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Other features, objects and advantages of the present invention will become more apparent from the detailed description of the non-limiting embodiments with reference to the following drawings:

[0014] Figure 1 This is a structural diagram of a pressure regulating assembly of a gas flow meter according to the present invention;

[0015] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0016] Figure 3 This is a three-dimensional diagram of a pressure regulating assembly of a gas flow meter according to the present invention from another perspective;

[0017] Figure 4 for Figure 3 Enlarged view of point B in the middle;

[0018] Figure 5 This is a schematic diagram of the assembly of a positioning frame, a positioning block, a ring and a pressure regulating valve in a pressure regulating assembly of a gas flow meter according to the present invention;

[0019] Figure 6 Assembling diagram of ring and pressure regulating valve in pressure regulating assembly of gas flowmeter of the utility model;

[0020] Figure 7 Assembling diagram of supporting ring, connecting pipe and reducing pipe in pressure regulating assembly of gas flowmeter of the utility model;

[0021] Figure 8 Assembling diagram of rubber head and rubber ring in pressure regulating assembly of gas flowmeter of the utility model;

[0022] In the figure: 1-gas flowmeter pipe body, 2-first flange, 3-second flange, 4-reducing pipe, 5-pressure regulating valve, 6-supporting ring, 7-gas inlet, 8-pressing screw, 9-positioning frame, 10-positioning block, 11-connecting pipe, 12-ring, 13-rubber ring, 14-gas outlet, 15-screw hole, 16-perforation, 17-annular groove, 18-pin hole, 19-rubber head. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, purposes and effects realized by the utility model easy to understand, the utility model is further described below in combination with specific embodiments.

[0024] Please refer to Figures 1-6 The utility model provides a technical scheme: a pressure regulating assembly of gas flowmeter, including gas flowmeter pipe body 1, both ends of gas flowmeter pipe body 1 are installed with first flange 2, one first flange 2 is installed with second flange 3 through multiple groups of bolts, the second flange 3 is installed with reducing pipe 4 on the side away from first flange 2, the connecting pipe 11 is installed with the connecting pipe 11 on the end away from second flange 3, the connecting pipe 11 is equipped with pressure regulating valve 5 on the side away from reducing pipe 4, the gas inlet 7 on pressure regulating valve 5 is used to connect gas delivery pipe, makes the end of connecting pipe 11 away from reducing pipe 4 be connected in the gas outlet 14 on pressure regulating valve 5 with screw thread, completes the assembly of pressure regulating valve 5 and gas flowmeter pipe body 1, six planes are equidistantly machined on the outer surface of gas outlet 14 in ring shape, and gas outlet 14 and gas inlet 7 are arranged perpendicularly.

[0025] Please refer to Figures 1-6, the air outlet 14 on the pressure regulating valve 5 is sleeved with a ring 12, and three pressing screws 8 are connected with an annular equidistant thread at the edge of one side of the ring 12. The end of the connecting pipe 11 close to the reducer 4 is sleeved with a support ring 6 fixed to the connecting pipe 11, and one end of the pressing screw 8 contacts the support ring 6. One end of the connecting pipe 11 is threadedly connected to the air outlet 14 of the pressure regulating valve 5, so that the direction of the air inlet 7 of the pressure regulating valve 5 meets the needs of the gas pipeline layout path, and then the three pressing screws 8 on the ring 12 are turned so that the three pressing screws 8 are all against the support ring 6. Under the support of the pressing screws 8, there is a force between the connecting pipe 11 and the air outlet 14 of the pressure regulating valve 5, so that the connecting pipe 11 and the pressure regulating valve 5 are stably connected, so that the direction of the air inlet 7 of the pressure regulating valve 5 can be adjusted as needed.

[0026] See Figures 1-6 The ring 12 is provided with three through-holes 16 at equal intervals in a ring shape on one side facing the pressure regulating valve 5. A positioning frame 9 with a rectangular cross section is provided on the side of the through-hole 16 facing the support ring 6. The positioning frame 9 is connected and fixed to the ring 12. A positioning block 10 with a rectangular cross section is inserted in the positioning frame 9. A screw hole 15 is provided on one side of the positioning block 10, which is aligned with the through-hole 16. After the pressure screw 8 passes through the through-hole 16 and is threadedly connected to the screw hole 15, the positioning block 10 with the screw hole 15 is inserted into the positioning frame 9 to realize the connection between the positioning block 10 and the ring 12. When one end of the pressure screw 8 is against the support ring 6, the positioning block 10 is restricted in the space formed by the positioning frame 9 and the ring 12, that is, the position of the positioning block 10 is restricted under the force between the pressure screw 8 and the support ring 6. There is no need to process the screw hole 15 on the ring 12, which is conducive to reducing the thickness of the ring 12. At the same time, when the screw hole 15 is damaged, it will not affect the normal use of the pressure regulating valve 5.

[0027] See Figure 4 、 Figure 7 and Figure 8 The side of the support ring 6 facing the ring 12 is recessed to form an annular groove 17, and a detachable rubber ring 13 is installed in the annular groove 17. A plurality of pin holes 18 are evenly opened in the annular groove 17, and a plurality of rubber heads 19 that match the pin holes 18 are evenly fixed on the side of the rubber ring 13 facing the pin holes 18, so that the rubber heads 19 are inserted into the pin holes 18 to realize the connection between the rubber ring 13 and the support ring 6. When the pressing screw 8 is tightened, the pressing screw 8 contacts the rubber ring 13, thereby increasing the friction coefficient between the pressing screw 8 and the support ring 6 and improving the stability of the structure.

[0028] Although this specification is described according to implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A pressure regulating assembly for a gas flow meter, comprising a gas flow meter tube body (1), characterized in that: Both ends of the gas flow meter tube body (1) are installed with a first flange (2), and a second flange (3) is installed on the first flange (2) through a plurality of sets of bolts. A reducer (4) is installed on the side of the second flange (3) away from the first flange (2), and a connecting pipe (11) is installed on the end of the reducer (4) away from the second flange (3). A pressure regulating valve (5) is provided on the side of the connecting pipe (11) away from the reducer (4), and the end of the connecting pipe (11) away from the reducer (4) is threadedly connected to the reducer (4). In the air outlet (14) on the pressure regulating valve (5), the air inlet (7) on the pressure regulating valve (5) is used to connect the gas delivery pipe, and a ring (12) is provided on the air outlet (14) on the pressure regulating valve (5), and three top pressure screws (8) are connected in an annular equidistant thread at the edge of one side of the ring (12), and a support ring (6) is provided on one end of the connecting pipe (11) close to the reducer (4), and one end of the top pressure screw (8) is in contact with the support ring (6).

2. A pressure regulating assembly for a gas flow meter according to claim 1, characterized in that: The ring (12) has three holes (16) equidistantly provided in a circular shape on one side facing the pressure regulating valve (5), and a positioning frame (9) is provided on the side of the hole (16) facing the support ring (6). The positioning frame (9) is connected and fixed to the ring (12), and a positioning block (10) is inserted in the positioning frame (9). The positioning block (10) has a screw hole (15) on one side aligned with the hole (16), and the top pressure screw (8) passes through the hole (16) and is threadedly connected in the screw hole (15).

3. A pressure regulating assembly for a gas flow meter according to claim 2, characterized in that: The cross section of the positioning frame (9) is rectangular, and the cross section of the positioning block (10) is rectangular.

4. A pressure regulating assembly for a gas flow meter according to claim 1, characterized in that: The side of the support ring (6) facing the ring (12) is recessed to form an annular groove (17), a detachable rubber ring (13) is installed in the annular groove (17), and one end of the pressing screw (8) is in contact with the rubber ring (13).

5. A pressure regulating assembly for a gas flow meter according to claim 4, characterized in that: A plurality of pin holes (18) are evenly arranged in the annular groove (17), and a plurality of rubber heads (19) matching the pin holes (18) are evenly fixed on one side of the rubber ring (13) facing the pin holes (18), and the rubber heads (19) are inserted into the pin holes (18).

6. A pressure regulating assembly for a gas flow meter according to claim 1, characterized in that: The outer surface of the air outlet (14) is annular and has six planes equidistantly processed thereon. The air outlet (14) is arranged perpendicular to the air inlet (7).

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