Gas meter detection equipment for sealing detection

Abstract

The invention discloses gas meter detection equipment for sealing performance detection. The gas meter detection equipment comprises a hollow sphere, a side connecting pipe, a top through opening, a transparent rubber sleeve, a top connecting pipe and a bottom cavity, the low-pressure air pump is provided with a U-shaped pipe; the inner wall of the hollow sphere is provided with a plurality of spherical-surface-shaped elastic pieces capable of rotating at the same time, the tops of the spherical-surface-shaped elastic pieces are all provided with top plates, the equipment successfully realizes the sealing performance detection of the gas meter, and meanwhile, mutual gathering of the plurality of spherical-surface-shaped elastic pieces is utilized, so that rotation is facilitated, and the sealing performance of the gas meter is improved. And the elasticity of the spherical surface-shaped elastic piece is utilized, so that after the top plate is loosened, the spherical surface-shaped elastic piece shields the other side connecting pipes, and therefore, the sealing performance of the gas meter connected with the single side connecting pipe can be detected, and the sealing performance of the gas meter connected with the single side connecting pipe can be detected. Therefore, the device can detect the sealing performance of a plurality of gas meters, and the efficiency of the device for detecting the sealing performance of a plurality of gas meters is greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of gas meter sealing detection, in particular to a gas meter detection device for sealing detection. Background Art

[0002] A gas meter is a special instrument used to accurately measure gas consumption. It includes an inlet pipe and an outlet pipe. Testing the sealing of a gas meter is an important part of gas safety. The main purpose is to ensure that gas does not leak through the meter body and prevent safety accidents.

[0003] At present, the sealing of gas meters is mostly tested using precision pressure gauges. However, in addition to being expensive, precision pressure gauges can only test one gas meter at a time. That is, after testing the sealing of a gas meter, it needs to be disassembled and a new gas meter to be tested needs to be installed. Since the testing process takes some time, the testing time for multiple gas meters is extended, resulting in low gas meter testing efficiency.

[0004] To this end, a gas meter detection device for leak detection is proposed. Summary of the Invention

[0005] The purpose of the present invention is to provide a gas meter detection device for sealing detection, so as to solve the problem that the existing sealing detection device mentioned in the above background technology is not only high in cost but also has low detection efficiency when detecting multiple gas meters.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a gas meter detection device for leak detection, comprising a hollow sphere, the side walls of the hollow sphere being provided with a plurality of side connecting tubes, the top of the hollow sphere being provided with a top opening, the top of the hollow sphere being provided with a transparent rubber sleeve at the top opening, the top of the transparent rubber sleeve being provided with a top connecting tube, and the bottom of the hollow sphere being provided with a bottom cavity; Also included is a low-pressure air pump connected to the bottom cavity to provide a stable low pressure into the hollow sphere; It also includes a U-shaped tube, one end of which is connected to the top connecting tube through an inverted U-shaped connecting tube; The inner wall of the hollow sphere is provided with a plurality of spherical spring pieces that can rotate simultaneously, and the tops of the spherical spring pieces are each provided with a top plate, and the top plate extends out of the top opening and enters the transparent rubber sleeve; Gaps are provided between the plurality of spherical spring pieces, and only one of the spherical spring pieces is connected to the side connecting pipe to connect the side connecting pipe with the interior of the hollow sphere.

[0007] Preferably, the side wall of the hollow sphere is provided with a plurality of inverted L-shaped brackets to support the hollow sphere, a support plate is provided between the plurality of inverted L-shaped brackets to support the low-pressure air pump, and the U-shaped tube is provided between two of the inverted L-shaped brackets.

[0008] Preferably, four inverted L-shaped brackets are provided and are arranged at equal intervals around the central axis of the top through-hole, and the supporting plate is arranged in a rectangular shape.

[0009] Preferably: the side connecting pipe is used to connect the gas meter, the gas meter includes an air inlet pipe and an air outlet pipe, the air inlet pipe and the air outlet pipe are both provided with external threads, the side connecting pipe is provided with internal threads, and the gas meter is rotated so that its air inlet pipe and the side connecting pipe are threadedly connected.

[0010] Preferably, the bottom cavity is configured to be funnel-shaped, with its upper end located in a hollow sphere and its lower end connected to a low-pressure air pump.

[0011] Preferably, the bottom ends of several of the spherical spring pieces are fixedly connected to a bottom connecting ring block, and a snap ring block is provided on the bottom surface of the bottom connecting ring block.

[0012] Preferably, a circular groove matching the snap ring block is formed on the top surface of the bottom cavity, and the snap ring block is rotatably connected in the circular groove.

[0013] Preferably, the outer side walls of the top plates of the two spherical elastic sheets on the left and right sides of the only gap docking with the side connecting pipe are both provided with bumps to mark the position of the gap inside the hollow sphere.

[0014] Preferably, a plurality of the spherical spring pieces are arranged at equal intervals around the central axis of the top through-hole, and a plurality of the side connecting pipes are arranged at equal intervals around the central axis of the top through-hole.

[0015] Preferably, the inner wall of the hollow sphere is provided with an inner rubber pad, and the plurality of spherical spring pieces are tightly attached to the inner rubber pad in a relaxed state.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. This device successfully realizes the sealing detection of gas meters through the setting and joint cooperation of a hollow sphere, a low-pressure air pump and a U-shaped tube, etc., and utilizes the setting and joint cooperation of a transparent rubber sleeve, a spherical spring piece, a top plate and a side connecting pipe, etc. The mutual gathering of several spherical spring pieces not only facilitates rotation, thereby improving the convenience of adjusting the position of the only gap for docking with the side connecting pipe inside the hollow sphere, but also utilizes the elasticity of the spherical spring piece, so that after loosening the top plate, the spherical spring piece shields the remaining side connecting pipes, thereby realizing the sealing detection of the gas meter connected to the single side connecting pipe, so that this device can perform sealing detection on multiple gas meters, avoiding the time wasted by disassembling the gas meter and reassembling a new gas meter for each test, greatly improving the efficiency of the device in performing sealing detection on multiple gas meters. The structure is sophisticated and efficient, and is suitable for promotion and application in the process of sealing detection on multiple gas meters.

[0017] 2. Through the setting of the inner rubber pad, this device makes several spherical springs tightly adhere to the inner rubber pad in the relaxed state, thereby improving the sealing of the side connecting pipes of the several spherical springs. In addition, leakage at other side connecting pipes not connected to the gas meter is avoided during the sealing test of a single gas meter, thereby improving the sensitivity and accuracy of the device for gas meter sealing detection.

[0018] 3. The device uses an inverted L-shaped bracket to not only support the hollow sphere, but also provides an installation area for the U-shaped tube. The support plate can support the low-pressure air pump, which greatly improves the simplicity of the device, improves the stability of the device, avoids damage to components caused by tipping over, and especially improves the safety of the U-shaped tube, thereby increasing the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings. Obviously, the drawings described below are only some embodiments of the present invention, and those skilled in the art can derive other drawings based on these drawings without inventive effort. Among them: Figure 1 It is a usage state diagram of the present invention; Figure 2 It is a schematic diagram of the overall structure of the present invention; Figure 3 It is an overall top view of the present invention; Figure 4 This is a schematic diagram of the connection between the hollow sphere and the transparent rubber sleeve in the present invention; Figure 5 is a cross-sectional view of the hollow sphere of the present invention; Figure 6 Schematic diagram of the connection between the top plate and the bump in the present invention; Figure 7 Schematic diagram of the connection between the hollow sphere and the inner rubber pad in the present invention; Figure 8 It is a schematic diagram of the connection between the spherical spring piece and the bottom connecting ring block in the present invention.

[0020] In the figure: 1. hollow sphere; 11. side connecting pipe; 12. bottom cavity; 13. inner rubber pad; 14. top opening; 2. gas meter; 3. transparent rubber sleeve; 31. top connecting pipe; 32. inverted U-shaped connecting pipe; 4. low-pressure air pump; 5. spherical spring; 51. top plate; 52. protrusion; 53. bottom connecting ring block; 54. snap ring block; 55. circular groove; 6. inverted L-shaped bracket; 61. support plate; 7. U-shaped pipe. DETAILED DESCRIPTION

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0022] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0023] In the description of the present invention, "several" means one or more, "many" means more than two, "greater than," "less than," and "exceed" are understood to exclude the number itself, while "above," "below," and "within" are understood to include the number itself. The use of "first" and "second" in the description is solely for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, implicitly specifying the number of the indicated technical features, or implicitly specifying the order of the indicated technical features.

[0024] Reference Figure 1-8 As shown, the present invention provides a technical solution for a gas meter detection device for leak detection: A gas meter detection device for sealing detection includes a hollow sphere 1, the side wall of the hollow sphere 1 is provided with several side connecting tubes 11, the top of the hollow sphere 1 is provided with a top opening 14, the top of the hollow sphere 1 is provided with a transparent rubber sleeve 3 at the top opening 14, the top of the transparent rubber sleeve 3 is provided with a top connecting tube 31, and the bottom of the hollow sphere 1 is provided with a bottom cavity 12.

[0025] It should be noted that, referring to Figure 4-5 As shown, the interior of hollow sphere 1 is a spherical cavity. Side connecting tube 11 communicates with the spherical cavity within hollow sphere 1. Top opening 14 penetrates the spherical wall of hollow sphere 1. Transparent rubber sleeve 3 is made of transparent rubber, which is a mature material in the prior art and will not be described in detail here. The transparent rubber sleeve 3 is provided to seal top opening 14 while facilitating user observation of top plate 51 within. Its elasticity also controls the movement of top plates 51 from the outside, allowing them to return to their original position when the user releases their grip. Bottom cavity 12 communicates with the spherical cavity within hollow sphere 1.

[0026] The device further comprises a low-pressure air pump 4 , which is connected to the bottom cavity 12 to provide a stable low pressure into the hollow sphere 1 .

[0027] The device also includes a U-shaped tube 7, one end of which is connected to the top connecting tube 31 via an inverted U-shaped connecting tube 32. It should be noted that the U-shaped tube 7 is made of transparent glass or transparent plastic and has a scale on its surface. During use, it is filled with a pressure-indicating liquid, generally purified water, but also food coloring. The U-shaped tube 7 filled with the pressure-indicating liquid is used to test the sealing performance of the gas meter 2.

[0028] Reference Figure 5-8 As shown, the inner wall of the hollow sphere 1 is provided with a plurality of spherical spring pieces 5 that can rotate simultaneously. The top of each spherical spring piece 5 is provided with a top plate 51, which extends out of the top opening 14 and enters the transparent rubber sleeve 3. It should be noted that the spherical spring pieces 5 are cut from a sphere with a spherical cavity, that is, the center of the spherical spring piece 5 and the center of the hollow sphere 1 are located at the same position.

[0029] It should be noted that gaps are provided between the spherical spring pieces 5, and only one of them is connected to the side connecting tube 11, thereby connecting the side connecting tube 11 with the interior of the hollow sphere 1. It should be noted that only one gap is connected to the side connecting tube 11, which means that when the spherical spring pieces 5 simultaneously begin to rotate inside the hollow sphere 1, only one gap can align with the side connecting tube 11, thereby connecting the side connecting tube 11 to the interior of the hollow sphere 1.

[0030] Reference Figure 1-2As shown, in an optional embodiment: the side wall of the hollow sphere 1 is provided with a plurality of inverted L-shaped brackets 6 to support the hollow sphere 1, a support plate 61 is provided between the plurality of inverted L-shaped brackets 6 to support the low-pressure air pump 4, and the U-shaped tube 7 is provided between two inverted L-shaped brackets 6. It should be noted that there are four inverted L-shaped brackets 6 and they are evenly spaced around the central axis of the top through-port 14, and the support plates 61 are arranged in a rectangular shape. By providing the inverted L-shaped brackets 6, not only the hollow sphere 1 is supported, but also an installation area is provided for the U-shaped tube 7. Furthermore, by providing the support plates 61, the low-pressure air pump 4 is supported. The structural setting is simple, but the effect is significant.

[0031] It should be noted that the side connecting pipe 11 is used to connect to the gas meter 2. The gas meter 2 includes an inlet pipe and an outlet pipe. Both the inlet pipe and the outlet pipe are provided with external threads, and the side connecting pipe 11 is provided with internal threads. The gas meter 2 is threadedly connected to the inlet pipe and the side connecting pipe 11 by rotating. It should be noted that the inlet pipe and the outlet pipe of the gas meter 2 can also be provided with internal threads. Accordingly, the side connecting pipe 11 in the present device needs to be provided with external threads to achieve a matching connection between the gas meter 2 and the side connecting pipe 11. When testing the sealing of the gas meter 2, it is necessary to first connect the outlet pipe of the gas meter 2 with a pipe cap in the prior art to seal the outlet pipe of the gas meter 2. The inlet pipe of the gas meter 2 is then connected to the side connecting pipe 11, thereby making the gas meter 2 a closed system. It should be noted that the pipe cap in the prior art includes an internally threaded cylinder cap or an externally threaded plunger, etc., to adapt to the external or internal threads of the outlet pipe of the gas meter 2 to achieve the purpose of sealing the outlet pipe of the gas meter 2.

[0032] Reference Figure 6-7 As shown, in an optional embodiment, the bottom cavity 12 is configured in a funnel shape, with its upper end located within the hollow sphere 1 and its lower end connected to the low-pressure air pump 4. It should be noted that the bottom cavity 12 is connected to the interior of the hollow sphere 1, and the low-pressure air pump 4 can be a micro electric diaphragm pump, a stepper motor driven syringe pump, etc., for providing stable air pressure to the hollow sphere 1.

[0033] Reference Figure 8 As shown, in an optional embodiment: the bottom ends of several spherical spring pieces 5 are fixedly connected to a bottom connecting ring block 53 , and a snap ring block 54 is provided on the bottom surface of the bottom connecting ring block 53 .

[0034] Reference Figure 5-8As shown, in an optional embodiment, the top surface of the bottom cavity 12 is provided with an annular groove 55 that matches the snap ring block 54. The snap ring block 54 is rotatably connected to the annular groove 55. With this arrangement, multiple spherical springs 5 can be simultaneously rotated inside the hollow sphere 1, thereby controlling the only gap that connects to the side connecting tube 11 to rotate inside the hollow sphere 1, thereby controlling one of the multiple side connecting tubes 11 to communicate with the interior of the hollow sphere 1.

[0035] Reference Figure 6 As shown, in an optional embodiment, the outer walls of the top plates 51 of the two spherical springs 5 on the left and right sides of the only gap connecting the side connecting tube 11 are each provided with a bump 52 to mark the location of the gap within the hollow sphere 1. This arrangement allows the user to easily observe the position of the bump 52 through the transparent rubber sleeve 3 and adjust the position of the only gap connecting the side connecting tube 11 within the hollow sphere 1, thereby achieving quick and precise adjustment to complete the operation of switching the gas meter 2 for leak testing of the device, greatly improving the efficiency of the device for leak testing of multiple gas meters 2.

[0036] Reference Figure 1-8 As shown, in an optional embodiment, a plurality of spherical spring pieces 5 are arranged at equal intervals around the central axis of the top through-hole 14 , and a plurality of side connecting pipes 11 are arranged at equal intervals around the central axis of the top through-hole 14 .

[0037] Reference Figure 5-7 As shown, in an optional embodiment, the inner wall of the hollow sphere 1 is provided with an inner rubber pad 13, and the spherical spring pieces 5 are tightly attached to the inner rubber pad 13 when relaxed. The provision of the inner rubber pad 13 improves the sealing performance of the spherical spring pieces 5 against the connecting pipe 11 on the opposite side, thereby improving the sensitivity and accuracy of the device in detecting the sealing performance of the gas meter 2.

[0038] The working principle of this device is now explained through its working process: Before using this device, a brief introduction is first given to the gas meter 2, the detection object of this device. The gas meter 2 is a special instrument used to accurately measure the gas consumption, including an air inlet pipe and an air outlet pipe. Sealing detection of the gas meter 2 is an important part of gas safety. The main purpose is to ensure that the gas will not leak through the meter body and prevent safety accidents.

[0039] Reference Figure 1-8As shown, when the device is used to test the sealing of the gas meter 2, the following steps are mainly performed: the air inlet pipes in several gas meters 2 are connected to the side connecting pipe 11 respectively, and the user gathers several top plates 51 together by squeezing the transparent rubber sleeve 3. At this time, since the top plates 51 and the spherical spring pieces 5 are fixedly connected, and the spherical spring pieces 5 are elastic, the outer wall of the spherical spring pieces 5 will leave the inner wall of the hollow sphere 1, thereby facilitating the simultaneous rotation of several spherical spring pieces 5. The user controls the several top plates 51 to start rotating by twisting the transparent rubber sleeve 3, that is, the snap ring block 54 rotates in the annular groove 55. When the user observes through the transparent rubber sleeve 3 that the protrusions 52 are located on both sides of the side connecting pipe 11 connected to a gas meter 2 to be tested, that is, the only gap docking with the side connecting pipe 11 is aligned with the side connecting pipe 11 connected to the gas meter 2 to be tested, at this time, the transparent rubber sleeve 3 is loosened and several Under the elastic action of the spherical spring piece 5, the outer wall of the spherical spring piece 5 will cling to the inner wall of the hollow sphere 1, thereby shielding the other side connecting tube 11. The low-pressure air pump 4 is activated, providing a stable low-pressure gas into the hollow sphere 1 through the bottom cavity 12. This low-pressure gas will enter the interior of the gas meter 2 through the bottom cavity 12, the hollow sphere 1, and the side connecting tube 11. At the same time, this low-pressure gas will also squeeze the pressure-indicating liquid in the U-shaped tube 7 through the hollow sphere 1, the transparent rubber sleeve 3, the top connecting tube 31, and the inverted U-shaped connecting tube 32, causing a liquid level difference to form on the left and right sides of the pressure-indicating liquid in the U-shaped tube 7. Over a period of time, if the liquid level difference on the U-shaped tube 7 does not drop or is below the error value within the allowable range, it can be determined that the gas meter 2 connected to the side connecting tube 11 is sealed properly. If the liquid level difference on the U-shaped tube 7 drops significantly, it indicates that there is a leak in the gas meter 2 connected to the side connecting tube 11. The sealing test of the gas meter 2 is now complete.

[0040] When the gas meter 2 to be tested needs to be replaced, it is only necessary to continue adjusting the top plate 51 through the transparent rubber sleeve 3 to complete the position adjustment of the only gap for docking with the side connecting pipe 11, and then repeat the above operation to quickly complete the sealing test of several gas meters 2, avoiding the time wasted by disassembling the gas meter 2 and reassembling a new gas meter 2 for each test, thereby greatly improving the efficiency of sealing testing of multiple gas meters 2.

[0041] It should be noted that the provision of the inner rubber pad 13 improves the sealing performance of the spherical spring pieces 5 to the side connecting pipe 11 , thereby improving the sensitivity and accuracy of the device in detecting the sealing performance of the gas meter 2 .

[0042] The present invention successfully realizes the sealing detection of the gas meter 2 through the arrangement and joint cooperation of the hollow sphere 1, the low-pressure air pump 4 and the U-shaped tube 7, and utilizes the arrangement and joint cooperation of the transparent rubber sleeve 3, the spherical spring piece 5, the top plate 51 and the side connecting tube 11, etc., and utilizes the mutual gathering of several spherical spring pieces 5, which not only facilitates rotation, thereby improving the convenience of adjusting the position of the only gap for docking with the side connecting tube 11 inside the hollow sphere 1, but also utilizes the elasticity of the spherical spring piece 5, so that after loosening the top plate 51, the spherical spring piece 5 covers the remaining side connecting tubes 11, thereby realizing the sealing detection of the gas meter 2 connected to the single side connecting tube 11, so that the present invention can perform sealing detection on several gas meters 2, avoiding the time wasted by disassembling the gas meter 2 and reassembling a new gas meter 2 for each test, greatly improving the efficiency of the present invention in performing sealing detection on multiple gas meters 2, and having a sophisticated and efficient structure, and being suitable for promotion and application in the process of sealing detection on multiple gas meters 2.

[0043] By setting the inner rubber pad 13, the present device allows the multiple spherical spring pieces 5 to be tightly attached to the inner rubber pad 13 in a relaxed state, thereby improving the sealing performance of the multiple spherical spring pieces 5 to the side connecting pipe 11, thereby avoiding leakage at other side connecting pipes 11 that are not connected to the gas meter 2 during the sealing test of a single gas meter 2, thereby improving the sensitivity and accuracy of the present device in the sealing test of the gas meter 2.

[0044] The device not only supports the hollow sphere 1 through the setting of the inverted L-shaped bracket 6, but also provides an installation area for the U-shaped tube 7. The setting of the support plate 61 supports the low-pressure air pump 4, which greatly improves the simplicity of the device, improves the stability of the device, avoids damage to components caused by tipping over of the device, and especially improves the safety of the U-shaped tube 7, thereby increasing the service life of the device.

[0045] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A gas meter detection device for leak detection, characterized by: The hollow sphere (1) comprises a hollow sphere (1), wherein a side wall of the hollow sphere (1) is provided with a plurality of side connecting tubes (11), a top opening (14) is provided at the top of the hollow sphere (1), a transparent rubber sleeve (3) is provided at the top opening (14) of the hollow sphere (1), a top connecting tube (31) is provided at the top of the transparent rubber sleeve (3), and a bottom cavity (12) is provided at the bottom of the hollow sphere (1); It also includes a low-pressure air pump (4), which is connected to the bottom cavity (12) to provide a stable low pressure inside the hollow sphere (1); It also includes a U-shaped tube (7), one end of the U-shaped tube (7) is connected to the top connecting tube (31) through an inverted U-shaped connecting tube (32); The inner wall of the hollow sphere (1) is provided with a plurality of spherical spring pieces (5) that can rotate simultaneously, and the tops of the spherical spring pieces (5) are each provided with a top plate (51), and the top plate (51) extends out of the top opening (14) and enters the transparent rubber sleeve (3); Gaps are provided between the plurality of spherical spring pieces (5), and only one of the spherical spring pieces is connected to the side connecting pipe (11) to connect the side connecting pipe (11) with the interior of the hollow sphere (1).

2. A gas meter detection device for leak detection according to claim 1, characterized in that: The side wall of the hollow sphere (1) is provided with a plurality of inverted L-shaped brackets (6) to support the hollow sphere (1); a support plate (61) is provided between the plurality of inverted L-shaped brackets (6) to support the low-pressure air pump (4); and the U-shaped tube (7) is provided between two of the inverted L-shaped brackets (6).

3. A gas meter detection device for leak detection according to claim 2, characterized in that: Four inverted L-shaped brackets (6) are provided and are arranged at equal intervals around the central axis of the top through-hole (14), and the supporting plate (61) is provided in a rectangular shape.

4. A gas meter detection device for leak detection according to claim 3, characterized in that: The side connecting pipe (11) is used to connect to the gas meter (2), and the gas meter (2) includes an air inlet pipe and an air outlet pipe, and the air inlet pipe and the air outlet pipe are both provided with external threads, and the side connecting pipe (11) is provided with internal threads. The gas meter (2) is rotated so that its air inlet pipe and the side connecting pipe (11) are threadedly connected.

5. A gas meter detection device for leak detection according to claim 4, characterized in that: The bottom cavity (12) is configured in a funnel shape, with its upper end located within the hollow sphere (1) and its lower end connected to the low-pressure air pump (4).

6. A gas meter detection device for leak detection according to claim 5, characterized in that: The bottom ends of the plurality of spherical spring pieces (5) are fixedly connected to a bottom connecting ring block (53), and a snap ring block (54) is provided on the bottom surface of the bottom connecting ring block (53).

7. A gas meter detection device for leak detection according to claim 6, characterized in that: The top surface of the bottom cavity (12) is provided with a circular groove (55) that matches the snap ring block (54), and the snap ring block (54) is located in the circular groove (55) and is rotatably connected.

8. A gas meter detection device for leak detection according to claim 7, characterized in that: The outer side walls of the top plates (51) on the left and right spherical spring pieces (5) of the only gap docking with the side connecting pipe (11) are both provided with protrusions (52) to mark the position of the gap inside the hollow sphere (1).

9. A gas meter detection device for leak detection according to claim 8, characterized in that: A plurality of the spherical spring pieces (5) are arranged at equal intervals around the central axis of the top through-hole (14), and a plurality of the side connecting pipes (11) are arranged at equal intervals around the central axis of the top through-hole (14).

10. A gas meter detection device for leak detection according to claim 9, characterized in that: The inner wall of the hollow sphere (1) is provided with an inner rubber pad (13), and the plurality of spherical spring pieces (5) are tightly attached to the inner rubber pad (13) in a relaxed state.

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