A device dedicated to the detection of the tightness of a gas meter

Abstract

The application belongs to the technical field of gas meter detection devices, and specifically relates to a device specially used for detecting the sealing performance of a gas meter, which comprises a box body, a gas meter to be detected is arranged in the box body, an L-shaped plate is fixed to one side of the box body, a gas cylinder is fixed to the top of the L-shaped plate, a U-shaped plate is fixed to the output end of the gas cylinder, and a groove is formed in the top of the U-shaped plate. The gas meter is periodically reciprocated in water through the swing mechanism, so that the posture of the gas meter is changed, bubbles in each part have the opportunity to be exposed, the situation that the bubbles are shielded is reduced, the sealing condition of the gas meter can be comprehensively and accurately detected, the movement track of the bubbles in water is more obvious due to the swing, a stronger visual contrast with the surrounding water body is formed, observation and identification are facilitated, and the bubbles in the movement process are more easily observed than the bubbles in static water.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of gas meter detection equipment, in particular to a device specially used for detecting the sealing performance of a gas meter. BACKGROUND

[0002] A gas meter is an instrument for measuring the amount of gas used, which is composed of a sealed shell, a movement and a counter. In use, once the gas with a certain pressure leaks from the sealed shell of the gas meter, it will endanger human life and safety. Therefore, it is particularly important to detect the sealing performance of the gas meter, and the sealing performance of the assembled gas meter before use must be detected.

[0003] After searching, a sealing performance detection device for a gas meter is disclosed in Chinese patent CN218725039U, which solves the problem that the gas meter body cannot be detected conveniently and quickly, a large amount of time is required, only one gas meter can be detected, multiple gas meters cannot be detected, the user's time and effort are wasted, and the detection efficiency of the detection device is reduced. However, the above-mentioned patent still has the following shortcomings:

[0004] The gas meter placed statically in water will block some parts from the bubbles generated by the leakage, so that these bubbles cannot be observed in time, affecting the comprehensiveness and accuracy of the detection of the sealing condition of the gas meter, and thus it is difficult to accurately judge whether the sealing performance of the gas meter is good. SUMMARY

[0005] In view of the shortcomings of the prior art, the present application provides a device specially used for detecting the sealing performance of a gas meter, which solves the problems raised in the background art.

[0006] To achieve the above purpose, the present application is realized by the following technical scheme: a device specially used for detecting the sealing performance of a gas meter, comprising a box body, a gas meter to be detected is arranged in the box body, an L-shaped plate is fixed on one side of the box body, a gas cylinder is fixed on the top of the L-shaped plate, a U-shaped plate is fixed on the output end of the gas cylinder, a groove is formed in the top of the U-shaped plate, an air inlet pipe is communicated with the air inlet of the gas meter, an air outlet pipe is communicated with the air outlet of the gas meter, the air inlet pipe and the air outlet pipe are placed in the groove, and a swinging mechanism is arranged on the U-shaped plate to drive the gas meter to swing.

[0007] The swing mechanism comprises two folding rods fixed at the top of the U-shaped plate, a convex plate fixed between the one ends of the two folding rods, a disc rotatably connected to one side of the convex plate, a horizontal plate fixed to one side of the convex plate, a motor fixed to the horizontal plate, the motor driving the disc to rotate, a connecting column fixed to one side of the disc, a fork rotatably connected to one side of the convex plate through a pin shaft, a sliding groove formed in one side of the fork, the connecting column sliding in the sliding groove, two rod seats fixed to one side of the convex plate, a toothed rod slidingly connected between the inner surfaces of the two rod seats, the fork engaging with the toothed rod, an L-shaped rod fixed to one side of the toothed rod, a first rack fixed to the bottom end of the L-shaped rod, and a first gear fixed to the air outlet pipe and engaging with the first rack.

[0008] Preferably, one side of the U-shaped plate is provided with an intermittent rotation turbulence assembly, which comprises a mounting table fixed to one side of the U-shaped plate, and a rotating disc rotatably connected to one side of the mounting table.

[0009] Preferably, a convex groove is formed in the interior of the rotating disc, a swing rod is rotatably connected to one side of the mounting table through a pin shaft, a convex column is fixed to one end of the swing rod, the convex column extends into the interior of the convex groove and slides in the interior of the convex groove, and two limiting blocks are fixed to one side of the mounting table.

[0010] Preferably, a moving plate is slidingly connected between the opposite sides of the two limiting blocks, a through groove is formed in one side of the moving plate, a plug-in column is fixed to the other end of the swing rod, the plug-in column extends into the interior of the through groove, and a limiting sleeve is rotatably connected to the other end of the swing rod through a pin shaft.

[0011] Preferably, a second rack is rotatably connected to one side of the rotating disc through a pin shaft, the second rack slides in the interior of the limiting sleeve, a second gear is rotatably connected to one side of the mounting table through a rotating shaft, the second gear engages with the second rack, a clamping block is fixed to one side of the moving plate, the clamping block is clamped with the teeth of the second gear at the top, and a stirring rod is rotatably connected between the inner walls of the box.

[0012] Preferably, a paddle is fixed to the stirring rod, the stirring rod extends out of the box at one end, a first belt pulley is fixed to the rotating shaft of the second gear and the one end of the stirring rod, and the two first belt pulleys are drivingly connected through a first belt.

[0013] Preferably, a second belt pulley is fixed to the output shaft of the motor and the output shaft of the rotating disc, and the two second belt pulleys are drivingly connected through a second belt.

[0014] Preferably, a water flow vibration assembly is further arranged on the box, the water flow vibration assembly comprises a cam fixed on the stirring rod, two side plates are fixed on one side of the box, springs are fixed on the top of the two side plates, a top plate is fixed between the top ends of the two springs, the side surface of the cam is in contact with and pressed by the bottom of the top plate, a vertical rod is fixed on the top of the top plate, a connecting plate is fixed on the top end of the vertical rod, a vertical rod is fixed on the bottom of the connecting plate, and a vibration plate is fixed on the bottom end of the vertical rod.

[0015] Compared with the prior art, the present application has the following beneficial effects:

[0016] (1) The present application sets up a swing mechanism, which makes the gas meter periodically reciprocate in the water, changes the posture of the gas meter, and makes each part of the gas meter have the opportunity to expose the bubbles, reduces the situation that the bubbles are blocked, helps to comprehensively and accurately detect the sealing condition of the gas meter, and the swing makes the movement track of the bubbles in the water more obvious, forms a stronger visual contrast with the surrounding water, and is convenient for observation and identification. Compared with the bubbles in static water, the bubbles in the movement process are more easily observed.

[0017] (2) The present application sets up an intermittent rotating turbulence component, uses the rotation of the paddle to disturb the water flow, makes the water flow periodically impact the surface of the gas meter, in the intermittent period of the water flow impact, the water around the gas meter is in a relatively static state, which helps to observe the bubbles, and when the water flow impacts, the attachment time of the bubbles on the surface of the gas meter is shortened, which prevents the bubbles from gathering or fusing due to long-time attachment, and makes it easier to identify small and individual bubbles.

[0018] (3) The present application sets up a water flow vibration assembly, uses the up-and-down vibration of the vibration plate to transmit the vibration to the water, makes the water around the gas meter produce a small fluctuation, which further interferes with the attachment of the bubbles on the surface of the gas meter, continuously promotes the bubbles to detach from the surface of the gas meter in the intermittent period of the water flow impact, and the vibration helps to break the local static area that may be formed in the water, makes the bubbles more easily float to the water surface to be observed, thereby improving the comprehensiveness and accuracy of the bubble detection. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a first perspective three-dimensional structure schematic view of the present application;

[0020] Figure 2 It is a second perspective three-dimensional structure schematic view of the present application;

[0021] Figure 3 It is a partial three-dimensional structure schematic view of the present application;

[0022] Figure 4The schematic diagram of linkage state of the swing mechanism, the intermittent rotating turbulence component and the water flow vibration component of the present application is shown in the figure.

[0023] Figure 5 The schematic diagram of the three-dimensional structure of the swing mechanism of the present application is shown in the figure.

[0024] Figure 6 The schematic diagram of the three-dimensional structure of the intermittent rotating turbulence component of the present application is shown in the figure.

[0025] Figure 7 The schematic diagram of the three-dimensional structure of the water flow vibration component of the present application is shown in the figure. Figure 6 The schematic diagram of the enlarged structure at A in the figure.

[0026] Figure 8 The schematic diagram of the three-dimensional structure of the water flow vibration component of the present application is shown in the figure.

[0027] In the figure: 1, box body; 2, gas meter; 3, L-shaped plate; 4, air cylinder; 5, U-shaped plate; 6, groove; 7, air inlet pipe; 8, air outlet pipe; 9, swing mechanism; 10, intermittent rotating turbulence component; 11, pulley two; 12, belt two; 13, water flow vibration component; 91, folding rod; 92, convex plate; 93, disc; 94, cross plate; 95, motor; 96, connecting column; 97, tooth fork; 98, sliding groove; 99, rod base; 910, toothed rod; 911, L-shaped rod; 912, rack one; 913, gear one; 101, mounting table; 102, rotating disc; 103, convex groove; 104, swing rod; 105, convex column; 106, limiting block; 107, moving plate; 108, through groove; 109, insertion column; 1010, limiting sleeve; 1011, rack two; 1012, gear two; 1013, clamping block; 1014, stirring rod; 1015, paddle; 1016, pulley one; 1017, belt one; 131, cam; 132, side plate; 133, spring; 134, top plate; 135, vertical rod; 136, connecting plate; 137, vertical rod; 138, vibrating plate. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0029] The embodiments of the present application provide three technical solutions, specifically including the following embodiments:

[0030] Embodiment one

[0031] Please refer to Figures 1-5The utility model provides a device is exclusively used for gas meter leak detection, including box 1, the box 1 is stored with clear water, the box 1 is provided with the gas meter 2 to be detected, and the gas meter 2 is immersed in clear water, and gas is introduced into the gas meter 2, whether the surrounding of gas meter 2 has the bubble generation is observed, to judge the leakproofness of the gas meter 2 to be detected, one side of box 1 is fixed with L type board 3, the top of L type board 3 is fixed with air cylinder 4, air cylinder 4 is controlled by outside switch, and with external power supply electrically connected, the output of air cylinder 4 is fixed with U type board 5, the top of U type board 5 is provided with recess 6, the gas inlet of gas meter 2 is connected with inlet pipe 7, the gas outlet of gas meter 2 is connected with outlet pipe 8, the size of recess 6 and inlet pipe 7 and outlet pipe 8 is compatible, and inlet pipe 7 and outlet pipe 8 are placed in recess 6, and inlet pipe 7 and outlet pipe 8 can rotate in recess 6, and the swing mechanism 9 for driving gas meter 2 to swing is arranged on U type board 5;

[0032] The swing mechanism 9 includes two folding rods 91 fixed on the top of the U-shaped plate 5, a convex plate 92 fixed between one end of the two folding rods 91, a disc 93 rotatably connected to one side of the convex plate 92, a horizontal plate 94 fixed to one side of the convex plate 92, a motor 95 fixed to the horizontal plate 94, the motor 95 controlled by an external switch and electrically connected to an external power source, the motor 95 drives the disc 93 to rotate, the output of the motor 95 is fixed to one side of the disc 93, a connecting column 96 is fixed to one side of the disc 93, a toothed fork 97 rotatably connected to one side of the convex plate 92 through a pin shaft, a sliding groove 98 is formed on one side of the toothed fork 97, the connecting column 96 slides in the sliding groove 98, two rod seats 99 are fixed to one side of the convex plate 92, the rod seats 99 are used to limit the toothed rod 910, so that the toothed rod 910 can only move left and right, the toothed rod 910 is slidably connected between the inner surfaces of the two rod seats 99, the toothed fork 97 is engaged with the toothed rod 910, an L-shaped rod 911 is fixed to one side of the toothed rod 910, a first gear rack 912 is fixed to the bottom end of the L-shaped rod 911, a first gear 913 is fixed to the outlet pipe 8, the first gear rack 912 is engaged with the first gear 913, and the toothed fork 97 can drive the toothed rod 910 to move left and right reciprocally when swinging.

[0033] By setting the swing mechanism 9, the gas meter 2 is periodically reciprocally swung in water, the swing amplitude is ±45°, and the swing frequency is 0.5 Hz. The reciprocating swing changes the posture of the gas meter 2, so that the bubbles of each part have the opportunity to be exposed, reducing the situation that the bubbles are blocked, which is helpful to comprehensively and accurately detect the sealing condition of the gas meter 2. At the same time, the swing makes the movement track of the bubbles in water more obvious, forming a stronger visual contrast with the surrounding water, which is convenient for observation and identification. Compared with the bubbles in static water, the bubbles in the movement process are more easily observed.

[0034] Example two

[0035] On the basis of example one, see Figure 2、 Figure 6 、 Figure 7 As shown in the figure, one side of the U-shaped plate 5 is provided with an intermittent rotating disturbance component 10 for intermittently disturbing the water flow, and the impact duration of the disturbed water flow is about 5 seconds, which can ensure that the water flow can fully impact each part of the gas meter 2, reduce the attachment of air bubbles, and the static interval is also about 5 seconds to ensure sufficient time to observe the air bubbles. The intermittent rotating disturbance component 10 comprises a mounting table 101 fixed on one side of the U-shaped plate 5, and one side of the mounting table 101 is rotatably connected with a rotating disc 102.

[0036] The rotating disc 102 is internally provided with a convex groove 103, and the convex groove 103 can make the swing rod 104 swing intermittently around the pin shaft. One side of the mounting table 101 is rotatably connected with the swing rod 104 through the pin shaft. One end of the swing rod 104 is fixedly provided with a convex column 105, and the convex column 105 extends into the interior of the convex groove 103 and slides in the interior of the convex groove 103. One side of the mounting table 101 is fixedly provided with two limiting blocks 106, and the limiting blocks 106 are used for limiting the movement of a moving plate 107, so that the moving plate 107 moves up and down.

[0037] The two limiting blocks 106 are slidably connected between the opposite sides of the moving plate 107. One side of the moving plate 107 is provided with a through groove 108. The other end of the swing rod 104 is fixedly provided with a plug column 109. When the swing rod 104 swings, the plug column 109 swings synchronously, and then the plug column 109 drives the moving plate 107 to move up and down reciprocally. The through groove 108 reserves space for the movement of the plug column 109. The plug column 109 extends into the interior of the through groove 108. The other end of the swing rod 104 is rotatably connected with a limiting sleeve 1010 through a pin shaft. The limiting sleeve 1010 is used for limiting a rack two 1011, so that the rack two 1011 can only move left and right in the limiting sleeve 1010.

[0038] One side of the rotating disc 102 is rotatably connected with the rack two 1011 through a pin shaft. The rack two 1011 slides in the interior of the limiting sleeve 1010. One side of the mounting table 101 is rotatably connected with a gear two 1012 through a rotating shaft. The gear two 1012 is engaged with the rack two 1011. One side of the moving plate 107 is fixedly provided with a clamping block 1013. The top of the clamping block 1013 is clamped with the teeth of the gear two 1012. The clamping block 1013 can lock the gear two 1012 to avoid the rotation of the gear two 1012. The inner wall of the box body 1 is rotatably connected with a stirring rod 1014.

[0039] The stirring rod 1014 is fixedly provided with a paddle 1015. One end of the stirring rod 1014 penetrates through the box body 1 and extends to the outside of the box body 1. The rotating shaft of the gear two 1012 and one end of the stirring rod 1014 are both fixedly provided with a belt pulley one 1016. The two belt pulley ones 1016 are drivingly connected through a belt one 1017.

[0040] By setting the intermittent rotation turbulence component 10, the rotation of the paddle 1015 is used to disturb the water flow, so that the water flow periodically impacts the surface of the gas meter 2, and during the intermittent period of water flow impact, the water around the gas meter 2 is in a relatively static state, which helps to observe the bubbles; while the water flow impacts the gas meter 2, the adhesion time of the bubbles on the surface of the gas meter 2 is shortened, preventing the bubbles from gathering or merging due to long-term adhesion, so that the tiny and individual bubbles are more easily identified.

[0041] The output shaft of the motor 95 and the output shaft of the rotating disc 102 are both fixed with a belt pulley two 11, and the two belt pulley twos 11 are drivingly connected through a belt two 12. The swing mechanism 9 and the intermittent rotation turbulence component 10 are linked through the belt pulley two 11 and the belt two 12, and the two can work synchronously through the setting of one motor 95.

[0042] Embodiment three

[0043] On the basis of embodiment two, referring to Figure 4 and Figure 8 , the box body 1 is further provided with a water flow vibration component 13, which is used to vibrate the water flow, the vibration frequency is 10 Hz, and the amplitude is 5 mm. If the frequency is too low, it cannot generate enough water body fluctuation to interfere with the bubble adhesion and break the local static area, and if the frequency is too high, the water body fluctuation will be too violent, resulting in a complex motion trail of the bubbles and making it difficult to observe. The water flow vibration component 13 includes a cam 131 fixed on the stirring rod 1014, two side plates 132 fixed on one side of the box body 1, two springs 133 fixed on the top of the two side plates 132, a top plate 134 fixed between the top ends of the two springs 133, the side surface of the cam 131 in contact with the bottom of the top plate 134, a vertical rod 135 fixed on the top of the top plate 134, a connecting plate 136 fixed on the top end of the vertical rod 135, a vertical rod 137 fixed on the bottom of the connecting plate 136, and a vibration plate 138 fixed on the bottom end of the vertical rod 137. The vibration plate 138 can vibrate the water in the box body 1.

[0044] By setting the water flow vibration component 13, the up-and-down vibration of the vibration plate 138 is used to transmit the vibration to the water, so that the water body around the gas meter 2 generates a small fluctuation. This fluctuation can further interfere with the adhesion of the bubbles on the surface of the gas meter 2, and can continuously promote the bubbles to separate from the surface of the gas meter 2 during the intermittent period of water flow impact. In addition, the vibration helps to break the local static area that may be formed in the water body, so that the bubbles are more easily floated to the water surface and observed, thereby improving the comprehensiveness and accuracy of bubble detection.

[0045] Meanwhile, the contents not described in detail in the specification all belong to the prior art known to those skilled in the art.

[0046] When working, the gas inlet pipe 7 and the gas outlet pipe 8 are screwed on the gas inlet and outlet of the gas meter 2, the gas inlet pipe 7 and the gas outlet pipe 8 are placed on the U-shaped plate 5, clean water is injected into the box 1, the gas cylinder 4 is started, the gas cylinder 4 drives the gas meter 2 into the water, the gas is introduced from the gas inlet pipe 7 and discharged from the gas outlet pipe 8, and whether bubbles are generated in the water is observed to determine the sealing performance of the gas meter 2, the motor 95 is started, the motor 95 drives the disc 93 to rotate, thereby driving the toothed fork 97 to swing, further driving the toothed rod 910 and the toothed bar 912 to reciprocate, the toothed bar 912 drives the gear 913 to rotate forward and backward, thereby driving the gas outlet pipe 8 and the gas meter 2 to reciprocate, thereby changing the posture of the gas meter 2, so as to observe whether bubbles are generated at each part of the gas meter 2, the cooperation of the belt pulley 11 and the belt 12 drives the rotating disc 102 to rotate, thereby driving the swing rod 104 to swing and the toothed bar 1011 to move left and right, further driving the gear 1012 to rotate intermittently, the swing rod 104 drives the moving plate 107 to move up and down, when the moving plate 107 moves upward, the clamping block 1013 is clamped between the two teeth of the gear 1012, preventing the gear 1012 from rotating when stopping, the gear 1012 synchronously drives the paddle 1015 to rotate and drives the water flow to be stirred, when the paddle 1015 is intermittently rotated to stir the water, the water flow will periodically impact the surface of the gas meter 2, during the intermittent period of the water flow impact, the water around the gas meter 2 is in a relatively static state, which is helpful for observing bubbles; when the water flow impacts the gas meter 2, the attachment time of the bubbles on the surface of the gas meter 2 can be shortened, preventing the bubbles from gathering or merging due to long-time attachment, more easily identifying small and individual bubbles, improving the accuracy and resolution of bubble detection; at the same time, the stirring rod 1014 drives the cam 131 to rotate, the cooperation of the cam 131 and the spring 133 drives the vibration plate 138 to vibrate up and down, the vibration is transmitted to the water, causing the water around the gas meter 2 to produce slight fluctuations, which can further interfere with the attachment of bubbles on the surface of the gas meter 2, and the bubbles can continuously be separated from the surface of the gas meter 2 during the intermittent period of the water flow impact, and the vibration is helpful for breaking the local static area that may be formed in the water, making the bubbles more easily float to the water surface to be observed, thereby improving the comprehensiveness and accuracy of bubble detection.

[0047] The above detailed description of the embodiments of the application is only a preferred embodiment of the application, and cannot be considered as limiting the scope of the implementation of the application. Any equivalent changes and improvements made within the scope of the application shall still belong to the patent coverage of the application.

Claims

1. A device dedicated to the detection of the tightness of a gas meter, comprising a box (1) in which a gas meter (2) to be detected is arranged, characterized in that: The side of the box (1) is fixed with an L-shaped plate (3), the top of the L-shaped plate (3) is fixed with a gas cylinder (4), the output end of the gas cylinder (4) is fixed with a U-shaped plate (5), the top of the U-shaped plate (5) is provided with a groove (6), the gas inlet of the gas meter (2) is communicated with an air inlet pipe (7), the gas outlet of the gas meter (2) is communicated with an air outlet pipe (8), the air inlet pipe (7) and the air outlet pipe (8) are placed in the groove (6), and the U-shaped plate (5) is provided with a swing mechanism (9) for driving the gas meter (2) to swing. The swing mechanism (9) comprises two folding rods (91) fixed on the top of the U-shaped plate (5), a convex plate (92) fixed between one end of the two folding rods (91), a disc (93) rotatably connected to one side of the convex plate (92), a horizontal plate (94) fixed to one side of the convex plate (92), a motor (95) fixed to the horizontal plate (94), the motor (95) drives the disc (93) to rotate, a connecting column (96) fixed to one side of the disc (93), a fork (97) rotatably connected to one side of the convex plate (92) through a pin shaft, a sliding groove (98) penetratingly formed in one side of the fork (97), the connecting column (96) sliding in the sliding groove (98), two rod seats (99) fixed to one side of the convex plate (92), a toothed rod (910) slidingly connected between the inner surfaces of the two rod seats (99), the fork (97) and the toothed rod (910) are engaged, an L-shaped rod (911) fixed to one side of the toothed rod (910), a rack one (912) fixed to the bottom end of the L-shaped rod (911), a gear one (913) fixed to the air outlet pipe (8), the rack one (912) and the gear one (913) are engaged.

2. A device for detecting the tightness of a gas meter according to claim 1, characterized in that: The U-shaped plate (5) is provided with an intermittent rotation turbulence assembly (10) on one side, the intermittent rotation turbulence assembly (10) comprises a mounting table (101) fixed on one side of the U-shaped plate (5), and a rotating disc (102) rotatably connected to one side of the mounting table (101).

3. A device for detecting the tightness of a gas meter according to claim 2, characterized in that: The inside of the rotating disc (102) is provided with a convex groove (103), and the mounting table (101) is rotatably connected with a swing rod (104) through a pin shaft, one end of the swing rod (104) is fixed with a convex column (105), the convex column (105) extends into the inside of the convex groove (103) and slides in the inside of the convex groove (103), and the mounting table (101) is fixed with two limiting blocks (106) on one side.

4. A device for detecting the tightness of a gas meter according to claim 3, characterized in that: The opposite sides of the two limiting blocks (106) are slidingly connected with a moving plate (107), one side of the moving plate (107) is penetratingly provided with a through groove (108), the other end of the swing rod (104) is fixed with a plug column (109), the plug column (109) extends into the inside of the through groove (108), and the other end of the swing rod (104) is rotatably connected with a limiting sleeve (1010) through a pin shaft.

5. A device for detecting the tightness of a gas meter according to claim 4, characterized in that: One side of the rotating disc (102) is rotatably connected with a rack two (1011) through a pin shaft, the rack two (1011) slides in the inside of the limiting sleeve (1010), one side of the mounting table (101) is rotatably connected with a gear two (1012) through a rotating shaft, the gear two (1012) is engaged with the rack two (1011), one side of the moving plate (107) is fixedly connected with a clamping block (1013), the top of the clamping block (1013) is clamped with the gear teeth of the gear two (1012), the inner wall of the box (1) is rotatably connected with a stirring rod (1014).

6. A device for detecting the tightness of a gas meter according to claim 5, characterized in that: The stirring rod (1014) is fixedly connected with a paddle (1015), one end of the stirring rod (1014) penetrates through the box (1) and extends to the outside of the box (1), the end of the stirring rod (1014) and the rotating shaft of the gear two (1012) are fixedly connected with a belt pulley one (1016), two belt pulley one (1016) are drivingly connected through a belt one (1017).

7. A device for detecting the tightness of a gas meter according to claim 2, characterized in that: The output shaft of the motor (95) and the output shaft of the rotating disc (102) are fixedly connected with a belt pulley two (11), two belt pulley two (11) are drivingly connected through a belt two (12).

8. The device for detecting the tightness of a gas meter according to claim 1, characterized in that: The box (1) is also provided with a water flow vibration assembly (13), the water flow vibration assembly (13) comprises a cam (131) fixed on the stirring rod (1014), one side of the box (1) is fixedly connected with two side plates (132), the top of two side plates (132) is fixedly connected with a spring (133), the top of two spring (133) is fixedly connected with a top plate (134), the side surface of the cam (131) is in contact with the bottom of the top plate (134), the top of the top plate (134) is fixedly connected with a vertical rod (135), the top of the vertical rod (135) is fixedly connected with a connecting plate (136), the bottom of the connecting plate (136) is fixedly connected with a vertical rod (137), the bottom of the vertical rod (137) is fixedly connected with a vibrating plate (138).

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