Mechanical pressure compensated gas meter

Abstract

The utility model discloses a kind of mechanical pressure compensation gas meters, including gas meter body, the detachable installation of connecting block is equipped on the upper and lower end of gas meter body two sides, connecting piece is connected on the connecting block, first round hole is opened on the connecting piece, the position of first round hole can be moved and adjusted on the connecting block, limit frame is installed on the connecting block.The beneficial effects of the utility model are that by installing movable connecting piece on connecting block, first round hole can be moved to the outside of bolt, connecting piece is fastened by limit frame, and then gas meter can be conveniently installed, the installation efficiency of gas meter can be improved, since the range of connecting piece movement is larger, gas meter body can also be installed when the position error of expansion bolt installation is larger, and gas meter body and connecting block can be detachably connected, so that gas meter body can be conveniently replaced when damaged.

Description

Technical Field

[0001] This utility model relates to the field of gas meter technology, and more specifically, to a mechanical pressure-compensated gas meter. Background Technology

[0002] A gas meter uses the pressure difference of gas flowing through its body as its power source. The relative positions of the valve seat and valve cover control the distribution of gas flow. The diaphragm of the gas meter consists of two identical gas measuring chambers. Each gas measuring chamber is divided into two identical small metering chambers by a flexible diaphragm. When the distributed gas enters the four small metering chambers in sequence, it pushes the diaphragm to swing freely. The movement of the diaphragm assembly drives a rocker arm to drive a linkage mechanism and rotate the valve cover, thereby controlling the sequential filling and venting of each metering chamber. This allows the gas meter to continuously cycle and operate. The signal is then transmitted to the counter through a transmission mechanism to complete the gas accumulation metering function.

[0003] In existing technology, when installing a gas meter, expansion bolts are usually installed on the wall first. Then, the bolt holes on the gas meter are fitted onto the outside of the expansion bolts, and then the nut is screwed onto the outside of the expansion bolts to install the gas meter. However, when installing the expansion bolts, there may be errors in the installation position of the expansion bolts. Therefore, an elongated hole is drilled in the bolt holes of the gas meter. After fitting the elongated hole onto the outside of the expansion bolt, the nut is used to fix it. However, the elongated hole is only effective for small errors. When the error is large, it is inconvenient to install the gas meter. Utility Model Content

[0004] The purpose of this invention is to solve the problem that the large error during the installation of expansion bolts makes it inconvenient to install gas meters, and to design a mechanical pressure-compensated gas meter.

[0005] To achieve the above objectives, the technical solution of this utility model is a mechanical pressure-compensated gas meter, including a gas meter body. Connecting blocks are detachably installed on the upper and lower ends of both sides of the gas meter body. Connecting plates are connected to the connecting blocks. A first circular hole is opened on the connecting plate. The connecting plate can move on the connecting block and adjust the position of the first circular hole. The first circular hole can be fitted onto the outside of a bolt. A limit bracket is installed on the connecting block. The limit bracket can tighten and loosen the connecting plate.

[0006] Furthermore, the connecting block is a cuboid block with a square notch on one side and first fixing holes on both sides of the square notch. A first limiting screw is installed at the first fixing hole, and an elongated hole is opened at one end of the connecting piece, which can be fitted onto the first limiting screw.

[0007] Furthermore, a second circular hole is formed above and below the elongated hole, and a second fixing hole is formed above and below the first fixing hole. A second limiting screw is installed at the second fixing hole, and the second circular hole can be fitted onto the second limiting screw.

[0008] Furthermore, the limiting frame includes a threaded hole located on one side of the square notch, and a fastening screw is threadedly connected to the threaded hole. A friction pad is installed on the side of the fastening screw near the connecting piece, and a support block is installed on the other side of the square notch.

[0009] Furthermore, a limiting groove is opened on one side of the upper end of the cuboid block, and L-shaped hanging plates are installed on the upper and lower ends of both sides of the gas meter body. The L-shaped hanging plates can extend into the limiting groove, and the L-shaped hanging plates and the cuboid block are connected by bolts.

[0010] The beneficial effects of this utility model are as follows: By installing a movable connecting piece on the connecting block, the first round hole can be easily moved to the outside of the bolt, and the connecting piece can be fastened by the limiting bracket, which facilitates the installation of the gas meter and improves the installation efficiency of the gas meter. Since the connecting piece has a large range of movement, the gas meter body can still be installed even when the position error of the expansion bolt is large. Furthermore, the gas meter body and the connecting block are detachably connected, which facilitates replacement when the gas meter body is damaged. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of a mechanical pressure-compensated gas meter according to the present invention; Figure 2 This is a schematic diagram showing the connection relationship between the connecting block and the connecting piece described in this utility model; Figure 3 This is a schematic diagram showing the connection relationship between the limiting frame and the connecting piece described in this utility model; Figure 4 This is a schematic diagram showing the connection relationship between the second limiting screw and the connecting piece of this utility model; In the diagram, 1. Gas meter body; 2. Connecting block; 3. Connecting piece; 4. First round hole; 5. Limiting bracket; 6. Square notch; 7. First fixing hole; 8. First limiting screw; 9. Elongated hole; 10. Second round hole; 11. Second fixing hole; 12. Second limiting screw; 13. Threaded hole; 14. Fastening screw; 15. Friction pad; 16. Support block; 17. Limiting groove; 18. L-shaped hanging plate. Detailed Implementation

[0012] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0013] In the description of this utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, in the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0014] This utility model provides, for example Figure 1-4 The gas meter shown includes a gas meter body 1. Connecting blocks 2 are detachably installed on the upper and lower ends of both sides of the gas meter body 1. Connecting plates 3 are connected to the connecting blocks 2. The connecting plates 3 have a first round hole 4. The connecting plates 3 can move on the connecting blocks 2 and adjust the position of the first round hole 4. The first round hole 4 can be fitted onto the outside of the bolt. A limit bracket 5 is installed on the connecting blocks 2. The limit bracket 5 can tighten and loosen the connecting plates 3.

[0015] The installation process of this device is as follows: When installing the gas meter body 1, first install multiple expansion bolts on the wall, then place the gas meter body 1 between the multiple expansion bolts. By moving the connecting piece 3 on the connecting block 2, it is easy to fit the first round hole 4 on the outside of the expansion bolt. Then screw the bolt on the expansion bolt, thereby fixing the connecting piece 3. After that, connect the gas meter body 1 to the gas pipeline. After the connection is completed, tighten the connecting piece 3 by using the limiting bracket 5, thereby facilitating the installation of the gas meter body 1. If the gas meter is damaged after a period of use, the gas meter body 1 can be separated from the connecting block 2 and a new gas meter body 1 can be replaced.

[0016] Refer to the instruction manual appendix Figure 1 Instruction manual attached Figure 2 Included with instruction manual Figure 3The connecting block 2 is a cuboid block with a square notch 6 on one side. The square notch 6 has first fixing holes 7 on both sides. A first limiting screw 8 is installed at the first fixing hole 7. The connecting piece 3 has an elongated hole 9 at one end, which can be fitted onto the first limiting screw 8.

[0017] The process of adjusting the position of the first round hole 4 of the connecting piece 3 is as follows: When installing the gas meter body 1, first fit the elongated hole 9 on the outside of the first limiting screw 8, so that the connecting piece 3 can be pulled inward or outward, and the elongated hole 9 can be rotated at the first limiting screw 8, thereby increasing the range of movement of the connecting piece 3 and changing the position of the first round hole 4, so that the first round hole 4 can be fitted on the outside of the expansion bolt, and then the connecting piece 3 is fixed by the limiting bracket 5.

[0018] Refer to the instruction manual appendix Figure 1 Instruction manual attached Figure 2 Instruction manual attached Figure 3 Included with instruction manual Figure 4 The elongated hole 9 has a second round hole 10 at the top and bottom, and the first fixing hole 7 has a second fixing hole 11 at the top and bottom. A second limiting screw 12 is installed at the second fixing hole 11, and the second round hole 10 can be fitted onto the second limiting screw 12.

[0019] The process of fitting the connecting piece 3 into the first round hole 4 on the outside of the expansion bolt is as follows: If the error is small when installing the expansion bolt, the second round hole 10 can be directly fitted onto the second limiting screw 12, and then the first round hole 4 can be fitted onto the outside of the expansion bolt. Thus, the two second limiting screws 12 and the expansion bolt form a stable triangular structure, which facilitates the fixing of the connecting piece 3 and makes the installation more convenient. By fitting washers on the outside of the second limiting screws 12 and placing the washers on both sides of the second round hole 10, the connecting piece 3 can be limited to prevent shaking. The first limiting screw 8 can also be removed to reduce costs. If the positional error of the expansion bolt installation is large, the second limiting screw 12 can be removed to facilitate the movement of the connecting piece 3.

[0020] Refer to the instruction manual appendix Figure 1 Included with instruction manual Figure 3 The limiting bracket 5 includes a threaded hole 13 located on one side of the square notch 6. A fastening screw 14 is threadedly connected to the threaded hole 13. A friction pad 15 is installed on the side of the fastening screw 14 near the connecting piece 3. A support block 16 is installed on the other side of the square notch 6. After the connecting piece 3 and the gas meter body 1 are installed, one end of the fastening screw 14 is screwed through the threaded hole 14. Then, the friction pad 15 is installed on one end of the fastening screw 14, so that the friction pad 15 can be attached to the connecting piece 3. Then, the connecting piece 3 can be fastened by the support block 16 and the friction pad 15.

[0021] Refer to the instruction manual appendix Figure 1 Instruction manual attached Figure 2 Included with instruction manual Figure 3 A limiting groove 17 is opened on one side of the upper end of the cuboid block. L-shaped hanging plates 18 are installed on the upper and lower ends of both sides of the gas meter body 1. The L-shaped hanging plates 18 can extend into the limiting groove 17. The L-shaped hanging plates 18 and the cuboid block are connected by bolts, which makes it easy to quickly connect the gas meter body 1 and the connecting block 2. If the gas meter body 1 or a certain connecting block 2 is damaged, the bolt connection can be removed first, and then the L-shaped hanging plate 18 can be taken out from the limiting groove 17 for easy replacement.

[0022] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A mechanical pressure-compensated gas meter, comprising a gas meter body (1), characterized in that, The gas meter body (1) has detachable connecting blocks (2) installed on the upper and lower ends of both sides. A connecting piece (3) is connected to the connecting block (2). A first round hole (4) is opened on the connecting piece (3). The connecting piece (3) can move on the connecting block (2) and adjust the position of the first round hole (4). The first round hole (4) can be fitted on the outside of the bolt. A limit bracket (5) is installed on the connecting block (2). The limit bracket (5) can tighten and loosen the connecting piece (3).

2. A mechanical pressure-compensated gas meter according to claim 1, characterized in that, The connecting block (2) is a cuboid block with a square notch (6) on one side and a first fixing hole (7) on both sides of the square notch (6). A first limiting screw (8) is installed at the first fixing hole (7). The connecting piece (3) has an elongated hole (9) at one end, which can be fitted onto the first limiting screw (8).

3. A mechanical pressure-compensated gas meter according to claim 2, characterized in that, The elongated hole (9) has a second round hole (10) above and below it, and the first fixing hole (7) has a second fixing hole (11) above and below it. A second limiting screw (12) is installed at the second fixing hole (11), and the second round hole (10) can be fitted onto the second limiting screw (12).

4. A mechanical pressure-compensated gas meter according to claim 2, characterized in that, The limiting frame (5) includes a threaded hole (13) on one side of the square notch (6), and a fastening screw (14) is threadedly connected to the threaded hole (13). A friction pad (15) is installed on the side of the fastening screw (14) near the connecting piece (3), and a support block (16) is installed on the other side of the square notch (6).

5. A mechanical pressure-compensated gas meter according to claim 2, characterized in that, A limiting groove (17) is opened on one side of the upper end of the cuboid block. L-shaped hanging plates (18) are installed on the upper and lower ends of both sides of the gas meter body (1). The L-shaped hanging plates (18) can extend into the limiting groove (17). The L-shaped hanging plates (18) and the cuboid block are connected by bolts.

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