Ultrasonic gas meter module test tool

Abstract

The ultrasonic gas meter module testing tool comprises a base, a cover plate, a gas inlet connector and a gas outlet connector, the base is provided with an opening, a mounting cavity is formed in the base, and the cover plate is provided with a gas inlet mounting opening allowing the gas inlet connector to be communicated with a valve and a gas outlet mounting opening allowing an ultrasonic module to be communicated with the gas outlet connector. The air inlet connector is installed at the air inlet installation opening, the air outlet connector is installed at the air outlet installation opening, the air inlet connector, the air outlet connector, the cover plate and the first sealing piece are pressed to form an integrated structure, and the integrated structure covers the opening of the base in a sealed mode. The testing tool is ingenious in structure, the air inlet connector, the air outlet connector, the cover plate, the sealing ring and other sealing pieces are integrated in a press fit or mortise and tenon joint mode, the base is covered with the integrated structure, the base and the cover plate are sealed through the sealing ring and the like, and therefore the overall air tightness of the testing tool is guaranteed; therefore, the accuracy of the module test result is effectively ensured, and the test effect is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to gas meter detection technical field, concretely is a kind of ultrasonic gas meter module test tool. BACKGROUND

[0002] With the wide application of intelligent gas meter, ultrasonic gas meter gradually becomes mainstream due to its high precision, no mechanical wear and tear, long service life and other advantages.Ultrasonic gas meter measures flow by the propagation time difference of ultrasonic wave in gas, and the performance of its core module directly affects the measurement accuracy and stability, so it is necessary to test the module comprehensively and accurately, such as gas running or high and low temperature.After the assembly of finished gas meter is completed, it is difficult to disassemble, and if the module is tested at this time, it undoubtedly increases the test time and affects the test efficiency.Therefore, test tools for testing ultrasonic gas meter module gradually appear in the market, which simulate the working condition of the module in the gas meter to test the module, thereby improving the test efficiency.

[0003] In the prior art, the Chinese utility model patent with patent application number 202323184116.9 discloses an ultrasonic gas meter module test tool, which comprises a tool box body and a cover plate, and the box opening of the tool box body is connected with the cover plate through a hinge, and further comprises a clamping mechanism, which comprises a back adhesive, a female buckle, a magic tape, a side opening, an elastic band, a rivet, a magic tape, a male buckle, an L-shaped limiting plate, a reverse hook plate and a magic patch, etc., which are locked and sealed through magic tape, magic tape, elastic strip, etc.Under normal circumstances, the module can be tested in a sealed environment, but if high and low temperature test is needed, the magic tape and other materials will be fatigued, which will accelerate aging, and there is a risk of rupture or reduced elasticity, which will cause gas leakage and other risks, affect the test effect of the module, and is not conducive to the promotion and application of the above-mentioned test tool in the field of gas meter detection technology. UTILITY MODEL CONTENTS

[0004] In order to overcome the defects in the above-mentioned prior art, the utility model aims to provide an ultrasonic gas meter module test tool, which is simple and ingenious in structure, easy to assemble and has high airtightness, can effectively ensure the accuracy of module test results, improve test effect, enhance user's use experience, and is conducive to the promotion and application of the above-mentioned test module tool in the field of gas meter detection technology.

[0005] In order to realize the above-mentioned utility model purposes, the utility model adopts the following technical scheme: an ultrasonic wave gas meter module test tool, including base, cover plate, air inlet joint and air outlet joint, the base is provided with an installation cavity for installing valve and ultrasonic wave module in the inside, the cover plate is provided with air inlet installation port for the air inlet joint and the valve to communicate and air outlet installation port for the ultrasonic wave module and the air outlet joint to communicate, the air inlet joint is installed at the air inlet installation port, the air outlet joint is installed at the air outlet installation port, and the air inlet joint, the air outlet joint and the cover plate and sealing element are integrated by pressing and form an integrated structure, and the integrated structure is sealed and covers the opening of the base.

[0006] As a preferred scheme of the utility model, the air inlet joint and the air outlet joint are formed with a sealing groove for embedding sealing element two.

[0007] As a preferred scheme of the utility model, the air inlet joint is provided with a mounting seat and a pressing surface, the mounting seat is arranged along the outer circle of the air inlet joint and is integrally formed with the air inlet joint, and the sealing groove is formed in the bottom of the mounting seat, the air inlet installation port is provided with a first installation surface and a second installation surface, the first installation surface is used for tightly abutting with sealing element two in the mounting seat, and the pressing surface is used for pressing and setting with the second installation surface.

[0008] As a preferred scheme of the utility model, the first installation surface is a plane.

[0009] As a preferred scheme of the utility model, the second installation surface is vertically arranged with the first installation surface.

[0010] As a preferred scheme of the utility model, the air inlet joint is arranged with a recessed opening at the connection position with the valve.

[0011] As a preferred scheme of the utility model, the air outlet joint is arranged with the same structure as the air inlet joint.

[0012] As a preferred scheme of the utility model, the air inlet installation port and the air outlet installation port are arranged with the same structure.

[0013] As a preferred scheme of the utility model, the sealing gasket is arranged between the base and the cover plate, and the base and the cover plate are connected and fixed through the connecting piece.

[0014] As a preferred scheme of the utility model, the base is provided with a support at the bottom.

[0015] Compared with the prior art, the ultrasonic gas meter module test tool has the advantages that: the ultrasonic gas meter module test tool is ingenious in structure, the air inlet connector, the air outlet connector and the cover plate are integrated through the sealing ring and the tenon-and-mortise mode, the integrated structure is covered on the base, the base and the cover plate are also sealed by the sealing ring, thereby ensuring the air tightness of the test tool as a whole, effectively ensuring the accuracy of the module test result, improving the test effect, enhancing the user's experience, and facilitating the promotion and application of the test module tool in the field of gas meter detection technology. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a structural schematic view of an ultrasonic gas meter module test tool in an embodiment;

[0017] Figure 2 is a structural schematic view of a base in an embodiment;

[0018] Figure 3 is a structural schematic view of a cover plate in an embodiment;

[0019] Figure 4 is a partial structural schematic view of an ultrasonic gas meter module test tool in an embodiment;

[0020] Figure 5 is a structural schematic view of an air inlet connector in an embodiment;

[0021] Figure 6 is an internal structural schematic view of an ultrasonic gas meter module test tool in an embodiment.

[0022] Reference signs: 1, base; 1-1, mounting cavity; 2, cover plate; 2-1, air inlet mounting port; 2-2, air outlet mounting port; 2-3, first mounting surface; 2-4, second mounting surface; 3, air inlet connector; 4, air outlet connector; 5, valve; 6, ultrasonic module; 7, sealing groove; 8, mounting seat; 9, compression surface; 10, connecting piece; 11, support. DETAILED DESCRIPTION

[0023] To make the purpose, technical scheme and advantages of the present application more clear and understandable, the following describes the present application through specific embodiments shown in the drawings. However, it should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present application. In addition, in the following description, the description of known structures and technologies is omitted to avoid unnecessary confusion of the concept of the present application.

[0024] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this utility model.

[0025] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0026] Example: Figures 1 to 6 As shown, an ultrasonic gas meter module testing fixture mainly consists of a base 1, a cover plate 2, an air inlet connector 3, and an air outlet connector 4. The base 1 has an opening and an internal mounting cavity 1-1 for mounting a valve 5 and an ultrasonic module 6. During actual testing, the valve 5 and the ultrasonic module 6 are installed inside the fixture to simulate their working state within the ultrasonic gas meter, thus achieving the effect of module testing. Specifically, the cover plate 2 has an air inlet 2-1 and an air outlet 2-2. The air inlet connector 3 is installed at the air inlet 2-1 and is used to communicate with the valve 5. The air outlet connector 4 is installed at the air outlet 2-2 and is used to communicate with the ultrasonic module 6. To ensure the overall airtightness of the testing fixture and thus the accuracy of the test results, in this embodiment, the air inlet connector 3 and the cover plate 2 are integrated by pressing or tenoning together with sealing rings or O-rings. Similarly, the air outlet connector 4 and the cover plate 2 are integrated by pressing or tenoning together with sealing rings or O-rings. That is, the air inlet connector 3, the air outlet connector 4, the cover plate 2, and the two sealing rings are integrated into one structure. Then, the valve 5 is connected to the air inlet connector 3, and the air outlet connector 4 is connected to the ultrasonic module 6. The connection ports of both are located inside the base 1, that is, below the cover plate 2, to avoid the risk of air leakage due to loose connection at the interface. Finally, the integrated structure is sealed and closed at the opening of the base 1 to complete the assembly of the entire testing fixture.

[0027] In the prior art, the air inlet joint 3 and the air outlet joint 4 are fixed on the cover plate 2 by welding and the like. In order to reduce the manufacturing cost, the thickness of the cover plate 2 is limited while ensuring the structural strength thereof. When welding is performed on a relatively thin cover plate 2, welding deformation will undoubtedly occur, which will cause air leakage at the connection and affect the manufacturing of the test tooling and the test rate of the module. Moreover, welding usually needs to be performed manually, which undoubtedly increases the labor cost. Therefore, in the embodiment, the air outlet joint 4 and the cover plate 2 are integrated by pressing or mortise and tenon through machine equipment and the like with a sealing ring or an O-ring and the like, which reduces the assembly difficulty of the test tooling, reduces the manufacturing cost of the test tooling, enhances the use experience, and is conducive to the promotion and application of the test module tooling in the field of gas meter detection technology.

[0028] The air inlet joint 3, the air outlet joint 4, the cover plate 2 and the base material are consistent, which can be made of brass or stainless steel and the like, so that the test tooling as a whole can completely adapt to the high and low temperature environment and will not fatigue due to high and low temperature. Stainless steel has excellent corrosion resistance, high strength and long service life and the like. When it is used in the gas meter module test tooling, the durability and reliability of the entire test tooling can be ensured, and the accuracy of the test result is further ensured.

[0029] In order to further ensure the sealing performance of the connection between the air inlet joint 3 and the cover plate 2 and the connection between the air outlet joint 4 and the cover plate 2, a sealing groove 7 for installing a sealing ring is formed on the air inlet joint 3 and the air outlet joint 4 in the embodiment. The sealing ring is embedded in the sealing groove 7, and then the air inlet joint 3 and the air outlet joint 4 are pressed on the cover plate 2.

[0030] Specifically, the above-mentioned air inlet joint 3 has a mounting seat 8 and a pressing surface 9, the outer diameter of the mounting seat 8 is larger than the outer diameter of the main body of the air inlet joint 3, that is, the hole diameter of the air inlet mounting port 2-1, and the pressing surface 9 is the outer wall surface of the air inlet joint 3 below the mounting seat 8. The mounting seat 8 is arranged along the outer circle of the air inlet joint 3. In order to ensure the sealing performance and structural strength of the air inlet joint 3, the mounting seat 8 is integrally formed with the air inlet joint 3. The sealing groove 7 is formed at the bottom of the mounting seat 8. Similarly, the cross section of the sealing groove 7 is annularly arranged in accordance with the mounting seat 8, so as to ensure that the sealing ring embedded in the sealing groove 7 is arranged along the outer periphery of the main body of the air inlet joint 3. The air inlet mounting port 2-1 has a first mounting surface 2-3 and a second mounting surface 2-4, that is, the air inlet mounting port 2-1 is arranged in a stepped manner, the first mounting surface 2-3 is used for tightly abutting the sealing ring in the mounting seat 8, that is, in the sealing groove 7, and the pressing surface 9 is used for pressing arrangement with the second mounting surface 2-4. Here, it can also be said that the interference fit is used, so as to ensure the sealing performance of the connection between the air inlet joint 3 and the cover plate 2, and avoid gas leakage and other phenomena. In order to reduce the manufacturing difficulty and ensure the sealing effect, the first mounting surface 2-3 is a plane, and the second mounting surface 2-4 is arranged perpendicularly to the first mounting surface 2-3.

[0031] In order to reduce the connection difficulty, the opening at the connection between the air inlet joint 3 and the valve 5 is arranged in a recessed manner, that is, the outer diameter of the opening at the lower end of the air inlet joint 3 is smaller than the outer diameter of the main body thereof.

[0032] Since the air inlet joint 3 and the air outlet joint 4 have the same function, that is, both of them are arranged in communication with the external gas pipeline, the air outlet joint 4 in the embodiment is arranged in the same structure as the air inlet joint 3. Similarly, the air inlet mounting port 2-1 and the air outlet mounting port 2-2 are arranged in the same structure, so as to ensure the air tightness of the whole test tool.

[0033] In order to ensure the sealing performance of the connection between the base 1 and the cover plate 2, a sealing gasket is arranged between the base 1 and the cover plate 2 in the embodiment, and the base 1 and the cover plate 2 are connected and fixed by the connecting bolts or screws and the like. The test tool can be repeatedly used by using screws or bolts for locking, which is economical, reliable, convenient for standardization design, and convenient for disassembly and assembly by using an electric screwdriver, thereby reducing the disassembly and assembly difficulty.

[0034] In order to facilitate assembly, reduce the difficulty of assembly, the opening is arranged at the top of the base 1 in the embodiment, and the gas outlet joint 4 and the cover plate 2 plus the sealing ring or the O-shaped ring and the like sealing element are formed into an integrated structure by pressing or mortise and tenon, which can be directly placed on the top of the base 1, and the assembly can be completed without the operation of multiple operators, thereby reducing the difficulty of assembly and the labor cost. In order to avoid the abrasion of the bottom of the base 1, the support 11 is arranged at the bottom of the base 1 in the embodiment, which can support the base 1 and reduce the abrasion of the bottom of the base 1 caused by the external environment, thereby prolonging the service life of the test tool and reducing the test cost.

[0035] The ultrasonic wave gas meter module test tool in the embodiment has three seals, one of which is the seal between the base 1 and the cover plate 2, the second is the seal between the sealing gasket of the sealing groove 7 and the first mounting surface 2-3, and the third is the seal between the pressing surface 9 and the second mounting surface 2-4. The three seals can effectively ensure the air tightness of the test tool, and further ensure the accuracy of the test result.

[0036] The ultrasonic wave gas meter module test tool in the embodiment has a clever structure, which comprises the base 1, the cover plate 2, the air inlet joint 3 and the air outlet joint 4. The air inlet joint 3 and the air outlet joint 4 and the cover plate 2 plus the sealing ring and the like sealing element are formed into an integrated structure by pressing or mortise and tenon, and the integrated structure is covered on the base 1. The base 1 and the cover plate 2 are also sealed by the sealing ring, thereby ensuring the air tightness of the test tool, further effectively ensuring the accuracy of the module test result, improving the test effect, enhancing the user experience, and facilitating the promotion and application of the test module tool in the field of gas meter detection technology.

[0037] The above description of the disclosed embodiments enables a person skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application; therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

[0038] Although the present application uses the following terms: 1, base; 1-1, mounting cavity; 2, cover plate; 2-1, air inlet mounting port; 2-2, air outlet mounting port; 2-3, first mounting surface; 2-4, second mounting surface; 3, air inlet joint; 4, air outlet joint; 5, valve; 6, ultrasonic module; 7, sealing groove; 8, mounting seat; 9, pressing surface; 10, connecting piece; 11, support, etc. more frequently, it does not exclude the possibility of using other terms. The use of these terms is only for the convenience of describing and explaining the essence of the present application; any additional limitation resulting from their interpretation is contrary to the spirit of the present application.

Claims

1. An ultrasonic gas meter module test fixture, characterized by: The utility model provides a kind of ultrasonic water purifier, including base (1), cover plate (2), air inlet connector (3) and air outlet connector (4), the base (1) opening is set and inside is formed with the installation cavity (1-1) with the installation of valve (5) and ultrasonic module (6) has, the cover plate (2) has air inlet installation port (2-1) and air outlet installation port (2-2), the air inlet connector (3) is installed at the air inlet installation port (2-1) and is communicated with the valve (5), the air outlet connector (4) is installed at the air outlet installation port (2-2) and is communicated with the ultrasonic module (6), the air inlet connector (3), the air outlet connector (4) and the cover plate (2) and sealing element one are formed into an integral structure by pressing, and the integral structure sealingly covers the opening of the base (1).

2. The ultrasonic gas meter module test fixture of claim 1, wherein: The air inlet connector (3), the air outlet connector (4) are formed with sealing groove (7) for sealing element two.

3. The ultrasonic gas meter module test fixture of claim 2, wherein: The air inlet connector (3) has mounting seat (8) and pressing surface (9), the mounting seat (8) is set along the outer circle of the air inlet connector (3) and is integrally formed with the air inlet connector (3), and the sealing groove (7) is formed in the bottom of the mounting seat (8);The air inlet installation port (2-1) has first mounting surface (2-3) and second mounting surface (2-4), the first mounting surface (2-3) is used for tightly adhering with sealing element two in the mounting seat (8), and the pressing surface (9) is used for pressing and setting with the second mounting surface (2-4).

4. The ultrasonic gas meter module test fixture of claim 3, wherein: The first mounting surface (2-3) is a plane.

5. The ultrasonic gas meter module test fixture of claim 4, wherein: The second mounting surface (2-4) is vertically arranged with the first mounting surface (2-3).

6. The ultrasonic gas meter module test fixture of claim 1, wherein: The air inlet connector (3) is arranged in the opening of the connection between the air inlet connector (3) and the valve (5).

7. The ultrasonic gas meter module test fixture of claim 3, wherein: The air outlet connector (4) is arranged in the same structure as the air inlet connector (3).

8. The ultrasonic gas meter module test fixture of claim 3, wherein: The air inlet installation port (2-1) and the air outlet installation port (2-2) are arranged in the same structure.

9. The ultrasonic gas meter module test fixture of claim 1, wherein: The base (1) and the cover plate (2) are connected and fixed by connecting piece (10) between the base (1) and the cover plate (2).

10. The ultrasonic gas meter module test fixture of claim 1, wherein: The base (1) is opened at the top and provided with support (11) at the bottom.

Images