Gas flowmeter convenient to disassemble and assemble

By designing the engagement and limiting components for the flow pipe and connecting plate of the gas flow meter, the problem of requiring multiple operators for the installation of existing gas flow meters was solved, achieving a convenient and stable installation process.

CN224247084UActive Publication Date: 2026-05-15HARBIN METROLOGY TESTING INST (HARBIN INST OF METROLOGY SCI & TECH)
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HARBIN METROLOGY TESTING INST (HARBIN INST OF METROLOGY SCI & TECH)
Filing Date
2025-07-29
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

The existing gas flow meter requires multiple people to operate the flange during installation, resulting in wasted manpower and inconvenient and unstable installation.

Method used

A structure including a gas flow meter body, a flow pipe, a connecting plate, a locking assembly, and a limiting assembly is designed. Through the cooperation of the locking assembly and the limiting assembly, the flow pipe and the connecting plate can be installed conveniently and stably.

Benefits of technology

This improves the ease of installation and disassembly of gas flow meters, reduces the waste of human resources, and ensures that the installation process of flow meters is more efficient and reliable.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model provides a gas flowmeter convenient to disassemble and assemble, and belongs to the technical field of gas dispensers. Through the structural arrangement that the sliding plate reciprocates horizontally in the sliding groove formed in the inner side wall of the runner pipe, the sliding plate can drive one end of the threaded rod to be in threaded connection with the connecting plate, then the connecting plate can drive the connecting pipe to be stably installed on the two sides of the runner pipe, and therefore the convenience and stability of disassembly and assembly of the gas flowmeter are improved. The gas flow meter comprises a gas flow meter body and a flow pipe, and further comprises a connecting plate, a clamping assembly and a limiting assembly. A circulation pipe is fixedly arranged on the bottom face of the gas flow meter body, a circulation groove is formed in the circulation pipe, connecting plates are arranged on the two sides of the circulation pipe, the two connecting plates are symmetrically arranged, a clamping assembly is arranged on the side, facing the circulation pipe, of each connecting plate, a limiting assembly is arranged in the circulation pipe, and one end of each limiting assembly is connected with the corresponding connecting plate. The clamping assembly comprises two connecting plates, a connecting pipe, a connecting block and a connecting groove.
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Description

Technical Field

[0001] This utility model relates to a gas flow meter that is easy to assemble and disassemble, specifically belonging to the field of gas dispenser technology. Background Technology

[0002] Liquefied natural gas (LNG) is a clean and efficient energy source. With the continuous development of my country's LNG vehicle industry, the demand for LNG refueling stations is also increasing, and LNG refueling machines are being used more and more widely.

[0003] When using a gas dispenser, different types of flow meters can be used depending on the type. For example, CNC gas dispensers generally use mass flow meters, while LNG gas dispensers generally use volumetric flow meters. Gas flow meters can also be used after these main flow meters to improve the accuracy of flow detection.

[0004] Gas flow meters are typically installed at the location to be measured via a flange. This method requires the flange to be continuously lifted to align multiple connection holes during cleaning and maintenance of the gas flow meter. Connecting the bolts requires two or more people to complete the task, which is a waste of manpower and not conducive to the use of the gas flow meter. Utility Model Content

[0005] The purpose of this utility model is to provide a gas flow meter that is easy to assemble and disassemble, so as to solve the problem that when installing the flow meter body through the flange, it is necessary to continuously lift the flange to align multiple connection holes, and the connection bolts require two or more people to complete the work, which is a waste of manpower.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: the new model includes a gas flow meter body and a flow pipe, and also includes a connecting plate, a locking assembly and a limiting assembly;

[0007] A flow pipe is fixedly installed on the bottom surface of the gas flow meter body. A flow groove is opened in the flow pipe. Connecting plates are installed on both sides of the flow pipe. The two connecting plates are symmetrically arranged. A locking component is installed on the side of the connecting plate facing the flow pipe. A limit component is installed in the flow pipe. One end of the limit component is connected to the connecting plate.

[0008] Furthermore, the gas flow meter body is installed by cooperating with two connecting plates on both sides of the flow pipe. The locking assembly makes the installation of the flow pipe and the connecting plates more convenient, and the limiting assembly makes the installation of the flow pipe and the connecting plates more stable.

[0009] The locking assembly includes two connecting plates, a connecting tube, connecting blocks, and connecting grooves; four connecting blocks are fixedly installed at equal angles on one side of the connecting plate facing the flow tube, and a connecting tube is fixedly installed on the other side of the connecting plate; a connecting groove is opened on the inner side of the flow tube corresponding to the connecting blocks.

[0010] Furthermore, the connection between the connecting block and the connecting groove allows for quick installation of the flow pipe and the connecting plate.

[0011] The limiting component includes a rotating block, a turntable, and a sliding plate; a rotating block is provided inside the flow tube, and a turntable is fixedly installed on the outer wall of the rotating block; two sliding plates are provided inside the flow tube, and both ends of the sliding plates are inserted into the grooves opened inside the flow tube, so that the sliding plates can move back and forth in a horizontal position.

[0012] Furthermore, the turntable can drive the rotating block to rotate within the flow tube, and the two sliding plates allow the limiting components to be controlled.

[0013] The limiting assembly also includes a threaded rod and a spring; the rotating block is fitted with a threaded rod from the outside to the inside, one end of the threaded rod is fixedly connected to a sliding plate, a spring is sleeved on the outside of the threaded rod, one end of the spring is connected to the sliding plate, and the other end of the spring is connected to the inner wall of the rotating block.

[0014] Furthermore, the sliding plate can drive the threaded rod to move, allowing the threaded rod to cooperate with the spring and connect to the connecting plate, thereby facilitating the control of the limit component.

[0015] The flow tube has through grooves on both sides corresponding to the threaded rod, and the two connecting plates have threaded grooves corresponding to the threaded rod.

[0016] Furthermore, the connection between the flow pipe and the connecting plate is made more stable through the cooperation of the threaded rod and the threaded groove.

[0017] The front side wall of the flow tube has a slot corresponding to the turntable, and the outer side wall of the rotating block has a slot corresponding to the sliding plate.

[0018] Furthermore, the slots allow for control of the turntable and the slide plate.

[0019] The beneficial effects of this utility model are:

[0020] 1. The structure allows the slide plate to reciprocate horizontally within a groove on the inner wall of the flow pipe, enabling the slide plate to drive one end of the threaded rod to connect with the connecting plate. This, in turn, allows the connecting plate to drive the connecting pipe to be stably installed on both sides of the flow pipe, thereby improving the convenience and stability of the gas flow meter's assembly and disassembly. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall front view of the present invention;

[0022] Figure 2 This is a schematic diagram of the cross-sectional structure of the flow tube of this utility model;

[0023] Figure 3 This is a utility model Figure 2Enlarged structural diagram at point A in the middle;

[0024] Figure 4 This is a side sectional view of the flow tube structure of this utility model;

[0025] Figure 5 This is a side view of the flow tube structure of this utility model;

[0026] Figure 6 This is a three-dimensional structural diagram of the connecting plate of this utility model.

[0027] 1. Gas flow meter body; 2. Flow pipe; 3. Connecting plate; 4. Connecting pipe; 5. Connecting block; 6. Rotating block; 7. Turntable; 8. Slide plate; 9. Threaded rod; 10. Spring; 11. Connecting groove. Detailed Implementation

[0028] The following will be combined with the appendix Figure 1-6 The technical solutions in the embodiments are described clearly and completely.

[0029] Specific implementation method one: as follows Figure 1-3 As shown, the device as a whole includes a gas flow meter body 1, a flow pipe 2 and two connecting plates 3. The flow pipe 2 is fixedly installed on the bottom surface of the gas flow meter body 1. A flow groove for gas flow is opened on the inner side of the flow pipe 2. The gas flow meter body 1 can detect the gas flow through the flow groove, which facilitates the detection of the gas dispenser.

[0030] A connecting pipe 4 is fixedly installed on the other side of the connecting plate 3. The connecting pipe 4 is connected to the gas dispenser. There are two connecting plates 3. Four connecting blocks 5 are fixedly installed at equal angles on the side of the two connecting plates 3 facing the flow pipe 2. The connecting blocks 5 are T-shaped. A connecting groove 11 is opened on the inner side of the flow pipe 2 corresponding to the connecting blocks 5. The two connecting plates 3 can be quickly installed on both sides of the flow pipe 2 by the cooperation of the connecting blocks 5 and the connecting groove 11.

[0031] Specific implementation method two: such as Figure 4-6 As shown, the front wall of the flow pipe 2 has a slot corresponding to the turntable 7, and the outer wall of the rotating block 6 has a slot corresponding to the sliding plate 8. Therefore, the turntable 7 and the two sliding plates 8 can be controlled.

[0032] Two slide plates 8 are provided, with both ends of each slide plate 8 inserted into grooves on the inner wall of the flow pipe 2. The slide plates 8 reciprocate horizontally. A threaded rod 9 is fixedly connected to one end of each slide plate 8. A rotating block 6 is inserted from the outside to the inside of the threaded rod 9. A spring 10 is sleeved on the outside of the threaded rod 9. By controlling the two slide plates 8, the corresponding threaded rod 9 can be moved, allowing the threaded rod 9 to contact the threaded groove on the connecting plate 3 through the flow pipe 2. Since the rotating block 6 is provided inside the flow pipe 2, and a turntable 7 is fixedly installed on the outer wall of the rotating block 6, the rotating block 6 can be driven to rotate inside the flow pipe 2. Since the rotating block 6 is inserted from the outside to the inside of the threaded rod 9, when the rotating block 6 rotates, it will drive the threaded rod 9 to connect with the threaded groove on the connecting plate 3, thereby allowing the two connecting plates 3 to be stably installed on both sides of the flow pipe 2. This allows the connecting pipe 4 to be sealed and connected to the flow pipe 2, thus improving the detection accuracy of the gas flow meter body 1.

[0033] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model's technical solution. Any simple modifications, equivalent substitutions, and improvements made to the above embodiments without departing from the scope of the present utility model's technical solution, based on the technical essence of the present utility model and within the spirit and principles of the present utility model, shall still fall within the protection scope of the present utility model's technical solution.

Claims

1. A gas flow meter that is easy to assemble and disassemble, comprising a gas flow meter body (1) and a flow pipe (2), characterized in that, It also includes a connecting plate (3), a locking assembly, and a limiting assembly; A flow pipe (2) is fixedly installed on the bottom surface of the gas flow meter body (1). A flow groove is opened in the flow pipe (2). A connecting plate (3) is installed on both sides of the flow pipe (2). The two connecting plates (3) are symmetrically arranged. A locking component is installed on the side of the connecting plate (3) facing the flow pipe (2). A limit component is installed in the flow pipe (2). One end of the limit component is connected to the connecting plate (3).

2. The gas flow meter that is easy to assemble and disassemble according to claim 1, characterized in that, The snap-fit ​​assembly includes two connecting plates (3), a connecting tube (4), a connecting block (5), and a connecting groove (11); Four connecting blocks (5) are fixedly installed at equal angles on the side of the connecting plate (3) facing the flow pipe (2), and a connecting pipe (4) is fixedly installed on the other side of the connecting plate (3). A connecting groove (11) is opened on the inner side of the flow pipe (2) corresponding to the connecting block (5).

3. The gas flow meter that is easy to assemble and disassemble according to claim 1, characterized in that, The limiting components include a rotating block (6), a turntable (7), and a sliding plate (8); A rotating block (6) is provided on the inner side of the flow tube (2), and a turntable (7) is fixedly installed on the outer wall of the rotating block (6). A sliding plate (8) is provided on the inner side of the flow tube (2). There are two sliding plates (8). Both ends of the sliding plates (8) are inserted into the grooves opened on the inner wall of the flow tube (2). The sliding plates (8) move back and forth in a horizontal position.

4. The gas flow meter that is easy to assemble and disassemble according to claim 1, characterized in that, The limiting assembly also includes a threaded rod (9) and a spring (10); The rotating block (6) is fitted with a threaded rod (9) from the outside to the inside. One end of the threaded rod (9) is fixedly connected to a sliding plate (8). A spring (10) is sleeved on the outside of the threaded rod (9). One end of the spring (10) is connected to the sliding plate (8), and the other end of the spring (10) is connected to the inner wall of the rotating block (6).

5. A gas flow meter that is easy to assemble and disassemble according to claim 1, characterized in that, The flow pipe (2) has through grooves on both sides corresponding to the threaded rod (9), and the two connecting plates (3) have threaded grooves corresponding to the threaded rod (9).

6. A gas flow meter that is easy to assemble and disassemble according to claim 1, characterized in that, The front side wall of the flow tube (2) is provided with a slot corresponding to the turntable (7), and the outer side wall of the rotating block (6) is provided with a slot corresponding to the sliding plate (8).