Gas meter film quality detection device

Abstract

The invention provides a gas meter membrane quality detection device which comprises a bottom plate and a top plate located above the bottom plate, and further comprises a sealing test mechanism installed at the top of the bottom plate and used for conducting air tightness detection on a membrane; the rotating shaft is rotationally installed at the center of the bottom of the top plate, the outer wall of the middle section of the rotating shaft is sleeved with a gear and a fixing disc, the fixing disc is located below the gear, a rotating disc is fixedly arranged at the bottom section of the rotating shaft, vacuum suction cups which are evenly distributed are fixedly installed at the bottom of the rotating disc, and a dust removal assembly is installed at the top of the fixing disc; the rotating angle adjusting assembly is installed at the bottom of the top plate, the adjusting end of the rotating angle adjusting assembly is connected with the outer wall of the gear in a meshed mode, and the rotating angle adjusting assembly avoids the rotating disc and is used for adjusting the rotating angle of the gear; according to the device, the gas film can be pre-cleaned while continuous feeding is performed on the gas film, the test accuracy can be improved, and meanwhile the gas tightness test function of the gas film is achieved in combination with the test tank.

Description

Technical Field

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

[0002] The membrane assembly is a key component of the diaphragm gas meter. The membrane assembly is mainly composed of a membrane, a membrane tray, and a membrane splint. There are two corresponding positioning holes on the membrane and the membrane splint, and there are two corresponding positioning columns on the membrane tray. After penetrating the membrane and the membrane splint respectively, the three are welded together by ultrasonic waves. After the three are welded, whether the joints are sealed directly affects the accuracy of the diaphragm gas meter measurement. Therefore, a sealing detection device must be used for detection. Only when it meets the requirements can it enter the next process to ensure that there are no problems with the membrane assembly during product testing and improve the product qualification rate. There are also related products to achieve this function, such as the patented gas meter membrane quality detection device with application number CN201811612170.X, which has a high degree of automation, precise placement, and is easy to take and put.

[0003] However, the above patented products still have the following defects: (1) When testing the air tightness of the membrane, manual operation is required to feed the testing device, resulting in poor feeding continuity and low feeding efficiency; (2) Since dust easily accumulates on the surface of the membrane, it is not easy to observe whether there are cracks on the surface of the membrane during inflation testing, which affects the accuracy of the test results.

[0004] Therefore, we made improvements to this and proposed a gas meter membrane quality detection device. Summary of the invention

[0005] The purpose of the present invention is to address the current problem that when performing air tightness testing on the membrane, manual operation is required to feed the detection device, resulting in poor continuity and low efficiency of feeding. Since dust is easily accumulated on the surface of the membrane, it is not convenient to observe whether there are cracks on the surface of the membrane when performing inflation testing on the membrane, which affects the accuracy of the test results.

[0006] In order to achieve the above-mentioned object of the invention, the present invention provides the following technical solutions: Gas meter membrane quality detection device is used to improve the above problems.

[0007] The present invention is specifically as follows: It includes a bottom plate and a top plate located above it, and also includes a sealing test mechanism installed on the top of the bottom plate for performing air tightness test on the membrane; a rotating shaft, rotatably installed at the bottom center of the top plate, the outer wall of the middle section of the rotating shaft is sleeved with a gear and a fixed disk, the fixed disk is located below the gear, and a rotating disk is fixedly installed at the bottom section of the rotating shaft, the bottom of the rotating disk is fixedly installed with evenly distributed vacuum suction cups, and a dust removal assembly is installed on the top of the fixed disk; an angle adjustment assembly, installed at the bottom of the top plate, the adjustment end of the angle adjustment assembly is meshed and connected with the outer wall of the gear, and the angle adjustment assembly is arranged to avoid the rotating disk and is used to adjust the rotation angle of the gear.

[0008] As a preferred technical solution of the present invention, the angle adjustment assembly includes a limit frame fixedly installed on the bottom of the top plate and symmetrically distributed, a first fixed rod slidably connected to the inner wall of the limit frame, and a second fixed rod sleeved on the inner wall of the middle section of the first fixed rod, and the outer wall of the second fixed rod close to the rotating disk is provided with evenly distributed tooth grooves, and the tooth grooves are meshed with the outer wall of the gear, and a square limit frame is fixedly installed on the end of the second fixed rod away from the tooth grooves.

[0009] As a preferred technical solution of the present invention, an L-shaped plate is fixedly installed at the bottom of one end of the top plate close to the square limit frame, a protective cover is fixedly installed on the top of the L-shaped plate, a driving shaft is fixedly provided on the inner wall of the protective cover, an eccentric triangular block is fixedly installed on the output end of the driving shaft, and the eccentric triangular block abuts against the inner wall of the square limit frame.

[0010] As a preferred technical solution of the present invention, the dust removal assembly includes an air pump fixedly arranged on the top of a fixed plate, the air pump avoids a gear setting, the air outlet end of the air pump is connected to an annular tube, and evenly distributed telescopic tubes are fixedly arranged on the bottom of the annular tube, the telescopic tubes are communicated with the inner cavity of the annular tube, and the bottom ends of any group of the telescopic tubes extend downward through the fixed plate, and any group of the telescopic tubes are provided with evenly distributed air outlet holes on one side close to the vacuum suction cup.

[0011] As a preferred technical solution of the present invention, a support block is fixedly installed on the top of the fixed plate, a column is fixedly installed at one end of the support block, a pawl is rotatably provided on the outer wall of the middle section of the column, the pawl is meshed and connected with the outer wall of the gear, a fixed cover is fixedly provided on the top section of the column, a torsion spring is fixedly installed between the pawl and the fixed cover, the torsion spring is sleeved on the outer wall of the top section of the column, and the fixed cover is also fixedly connected to the bottom of the top plate.

[0012] As a preferred technical solution of the present invention, the sealing test mechanism includes a booster pump fixedly installed on the top of the base plate, an air filling tank is fixedly arranged at the air outlet end of the booster pump, the inner cavity of the air filling tank is a centrally-through structure, an air outlet pipe communicating with the inner cavity is installed at the center of the top of the air filling tank, a test tank is fixedly arranged at one end of the air outlet pipe away from the air filling tank, a sealing ring is provided on the outer wall of the top of the test tank, and symmetrically distributed pillars are fixedly arranged between the air filling tank and the test tank.

[0013] As a preferred technical solution of the present invention, a triangular bracket is fixedly installed on the top of the base plate, the triangular bracket is arranged to avoid the booster pump, and the top end of the triangular bracket is sleeved on the outer wall of the air tank.

[0014] As a preferred technical solution of the present invention, symmetrically distributed vertical rods are fixedly installed at both ends of the first fixing rod, and a dust brush is fixedly provided at the bottom section of any group of the vertical rods.

[0015] As a preferred technical solution of the present invention, an electric control box is fixedly arranged on the top of the base plate, the electric control box is arranged to avoid the sealing test mechanism, and a control panel is fixedly installed on the outer wall of the electric control box.

[0016] As a preferred technical solution of the present invention, hydraulic telescopic cylinders are fixedly installed at the centers of both ends of the bottom plate and the top plate, and evenly distributed telescopic rods and buffer springs are fixedly arranged between the bottom plate and the top plate, and the buffer springs are sleeved on the outer wall of the telescopic rods.

[0017] Compared with the prior art, the present invention has the following beneficial effects: In the scheme of the present invention: 1. The intermittent function of the film is realized by setting the angle adjustment component, and the dust brush connected to the first fixed rod is combined to realize the dust cleaning function before the air film test, which solves the problem that when the air tightness test of the film is performed in the prior art, manual operation is required to feed the detection device, resulting in poor continuity of feeding and low feeding efficiency; 2. By setting the first fixed rod and the dust brush, under a reciprocating stroke of the second fixed rod, the rotating shaft drives the fixed plate to rotate a certain angle so that the air film adsorbed by the vacuum suction cup moves to the top of the test tank. While the second fixed rod makes a reciprocating motion, the second fixed rod drives the first fixed rod to make a reciprocating motion along the limit frame, and then drives the dust brush connected to the vertical rod to make a reciprocating motion, thereby realizing the surface cleaning function before the air film test, which helps to improve the test accuracy and solves the problem in the prior art that dust is easily accumulated on the surface of the membrane, and it is not convenient to observe whether there are cracks on the surface of the membrane when the membrane is inflated for testing, thereby affecting the accuracy of the test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1This is one of the three-dimensional structural schematic diagrams of the gas meter membrane quality detection device provided by the present invention; Figure 2 The second schematic diagram of the three-dimensional structure of the gas meter membrane quality detection device provided by the present invention; Figure 3 A schematic diagram of the main structure of the gas meter membrane quality detection device provided by the present invention; Figure 4 This is one of the structural schematic diagrams of the angle adjustment component of the gas meter membrane quality detection device provided by the present invention; Figure 5 The second schematic diagram of the structure of the angle adjustment component of the gas meter membrane quality detection device provided by the present invention; Figure 6 A schematic diagram of the structure of a sealing test mechanism of a gas meter membrane quality detection device provided by the present invention; Figure 7 A schematic diagram of the structure of the dust removal component of the gas meter membrane quality detection device provided by the present invention; Figure 8 The gas meter membrane quality detection device provided by the present invention Figure 5 Enlarged view of point A in .

[0019] Indicated in the figure: 1. Bottom plate; 2. Top plate; 3. Sealing test mechanism; 301. Booster pump; 302. Inflatable tank; 303. Exhaust pipe; 304. Test tank; 305. Sealing ring; 306. Pillar; 4. Rotating shaft; 5. Gear; 6. Rotating plate; 7. Vacuum suction cup; 8. Dust removal assembly; 801. Air pump; 802. Annular tube; 803. Telescopic tube; 804. Exhaust hole; 9. Angle adjustment assembly; 901. Limit frame; 902. First fixed Fixed rod; 903, second fixed rod; 904, tooth groove; 905, square limit frame; 10, L-shaped plate; 11, driving shaft; 12, eccentric triangle block; 13, fixed plate; 14, support block; 15, column; 16, ratchet; 17, fixed cover; 18, torsion spring; 19, electric control box; 20, control panel; 21, hydraulic telescopic cylinder; 22, telescopic rod; 23, buffer spring; 24, vertical rod; 25, dust brush; 26, triangular bracket. DETAILED DESCRIPTION

[0020] To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be described clearly and completely in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them.

[0021] Therefore, the following detailed description of the embodiments of the present invention is not intended to limit the scope of the invention claimed for protection, but merely represents some embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0022] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0023] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0024] like Figure 1-8 As shown, this embodiment proposes a gas meter membrane quality detection device, including a bottom plate 1 and a top plate 2 located above the bottom plate 1, and also includes a sealing test mechanism 3, which is installed on the top of the bottom plate 1 and is used to perform air tightness detection on the membrane; a rotating shaft 4, which is rotatably installed at the bottom center of the top plate 2, and the outer wall of the middle section of the rotating shaft 4 is sleeved with a gear 5 and a fixed disk 13, the fixed disk 13 is located below the gear 5, and a rotating disk 6 is also fixedly installed at the bottom section of the rotating shaft 4, and evenly distributed vacuum suction cups 7 are fixedly installed at the bottom of the rotating disk 6, and a dust removal component 8 is also installed on the top of the fixed disk 13; an angle adjustment component 9, which is installed at the bottom of the top plate 2, and the adjustment end of the angle adjustment component 9 is meshed and connected with the outer wall of the gear 5, and the angle adjustment component 9 is arranged to avoid the rotating disk 6, and is used to adjust the rotation angle of the gear 5.

[0025] like Figure 4 As shown, as a preferred embodiment, on the basis of the above-mentioned method, further, the angle adjustment component 9 includes a limit frame 901 fixedly installed on the bottom of the top plate 2 and symmetrically distributed, a first fixed rod 902 slidingly connected to the inner wall of the limit frame 901, and a second fixed rod 903 sleeved on the inner wall of the middle section of the first fixed rod 902, and the outer wall of the end of the second fixed rod 903 close to the rotating material plate 6 is provided with evenly distributed tooth grooves 904, the tooth grooves 904 are meshed with the outer wall of the gear 5, and the end of the second fixed rod 903 away from the tooth grooves 904 is fixedly installed with a square limit frame 905.

[0026] like Figure 4As shown, as a preferred embodiment, on the basis of the above method, further, an L-shaped plate 10 is fixedly installed at the bottom of one end of the top plate 2 close to the square limit frame 905, and a protective cover is fixedly installed on the top of the L-shaped plate 10. A driving shaft 11 is fixedly provided on the inner wall of the protective cover, and an eccentric triangular block 12 is fixedly installed on the output end of the driving shaft 11. The eccentric triangular block 12 abuts against the inner wall of the square limit frame 905. Under a reciprocating stroke of the second fixed rod 903, the shaft drives the fixed plate 13 to rotate a certain angle so that the air film adsorbed by the vacuum suction cup 7 moves to the top of the test tank 304. When the second fixed rod 903 reciprocates, the second fixed rod 903 drives the first fixed rod 902 to reciprocate along the limit frame 901.

[0027] like Figure 7 As shown, as a preferred embodiment, on the basis of the above method, further, the dust removal component 8 includes an air pump 801 fixedly arranged on the top of the fixed plate 13, the air pump 801 avoids the gear 5, the air outlet end of the air pump 801 is connected to the annular tube 802, and the bottom of the annular tube 802 is fixedly provided with evenly distributed telescopic tubes 803, the telescopic tubes 803 are communicated with the inner cavity of the annular tube 802, and the bottom end of any group of telescopic tubes 803 extends downward through the fixed plate 13, and any group of telescopic tubes 803 is provided with evenly distributed air outlet holes 804 on the side close to the vacuum suction cup 7.

[0028] like Figure 7 As shown, as a preferred embodiment, on the basis of the above-mentioned method, further, a support block 14 is fixedly installed on the top of the fixed plate 13, a column 15 is fixedly installed at one end of the support block 14, a pawl 16 is rotatably provided on the outer wall of the middle section of the column 15, the pawl 16 is meshed and connected with the outer wall of the gear 5, a fixed cover 17 is fixedly provided on the top section of the column 15, a torsion spring 18 is fixedly installed between the pawl 16 and the fixed cover 17, the torsion spring 18 is sleeved on the outer wall of the top section of the column 15, and the fixed cover 17 is also provided with a bottom of the top plate 2. The driving shaft 11 drives the eccentric triangular block 12 to rotate. The eccentric triangular block 12 abuts against the inner wall of the abutting square limit frame 905 during rotation, thereby driving the second fixed rod 903 to reciprocate. During the reciprocating motion of the second fixed rod 903, only a single stroke tooth groove 904 is engaged with the gear 5. When the tooth groove 904 is engaged with the gear 5, the rotating shaft 4 is driven to rotate in the counterclockwise direction. During the rotation, the cooperation between the gear 5 and the ratchet 16 prevents it from rotating.

[0029] like Figure 6As shown, as a preferred embodiment, on the basis of the above-mentioned method, further, the sealing test mechanism 3 includes a booster pump 301 fixedly installed on the top of the base plate 1, and an air filling tank 302 is fixedly provided at the air outlet end of the booster pump 301. The inner cavity of the air filling tank 302 is a centrally-through structure, and an air outlet pipe 303 communicating with the inner cavity of the air filling tank 302 is installed at the top center of the air filling tank 302, and a test tank 304 is fixedly provided at one end of the air outlet pipe 303 away from the air filling tank 302, a sealing ring 305 is provided on the outer wall of the top of the test tank 304, and symmetrically distributed pillars 306 are fixedly provided between the air filling tank 302 and the test tank 304.

[0030] like Figure 6 As shown, as a preferred embodiment, based on the above method, a triangular bracket 26 is further fixedly installed on the top of the base plate 1, the triangular bracket 26 is arranged to avoid the booster pump 301, and the top end of the triangular bracket 26 is sleeved on the outer wall of the inflation tank 302.

[0031] like Figure 5 As shown, as a preferred embodiment, on the basis of the above method, further, symmetrically distributed vertical rods 24 are fixedly installed at both ends of the first fixed rod 902, and a dust brush 25 is fixedly provided at the bottom section of any group of vertical rods 24. The second fixed rod 903 drives the first fixed rod 902 to reciprocate along the limit frame 901, and then drives the dust brush 25 connected to the vertical rod 24 to reciprocate, thereby realizing the surface cleaning function before the air film test, which helps to improve the test accuracy.

[0032] like Figure 3 As shown, as a preferred embodiment, on the basis of the above method, further, an electric control box 19 is fixedly installed on the top of the base plate 1, the electric control box 19 is arranged to avoid the sealing test mechanism 3, and a control panel 20 is fixedly installed on the outer wall of the electric control box 19.

[0033] like Figure 2 As shown, as a preferred embodiment, on the basis of the above method, further, a hydraulic telescopic cylinder 21 is fixedly installed at the center of both ends of the bottom plate 1 and the top plate 2, and evenly distributed telescopic rods 22 and buffer springs 23 are fixedly arranged between the bottom plate 1 and the top plate 2, and the buffer springs 23 are sleeved on the outer wall of the telescopic rods 22.

[0034] Specifically, when the gas meter film quality detection device is working: first, the gas film to be detected is adsorbed on the rotating material plate 6 by the provided vacuum suction cup 7, so as to facilitate subsequent detection thereof; The eccentric triangular block 12 is driven to rotate by the driving shaft 11, and the eccentric triangular block 12 abuts against the inner wall of the abutting square limit frame 905 during the rotation process, thereby driving the second fixed rod 903 to reciprocate. During the reciprocating movement of the second fixed rod 903, only a single stroke of the tooth groove 904 is engaged with the gear 5. When the tooth groove 904 is engaged with the gear 5, the rotating shaft 4 is driven to rotate in the counterclockwise direction. During the rotation, the gear 5 and the pawl 16 cooperate to prevent it from rotating. Under one reciprocating stroke of the second fixed rod 903, the rotating shaft drives the fixed plate 13 to rotate a certain angle so that the air film adsorbed by the vacuum suction cup 7 moves to the top of the test tank 304. While the second fixed rod 903 is reciprocating, the second fixed rod 903 drives the first fixed rod 902 to reciprocate along the limit frame 901, and then drives the dust brush 25 connected to the vertical rod 24 to reciprocate, so as to realize the surface cleaning function before the air film test, which is helpful to improve the test accuracy. First, the gas is filled into the inner cavity of the annular tube 802 through the provided air pump 801, so that the gas is dispersed into the inner cavities of each telescopic tube 803, and the gas is discharged through the air outlet 804 provided on the side wall of the telescopic tube 803, so that the dust on the surface of the membrane can be cleaned to avoid affecting the detection result; By installing a hydraulic telescopic cylinder 21 between the bottom plate 1 and the top plate 2, the height of the top plate 2 can be adjusted. When the telescopic end of the hydraulic telescopic cylinder 21 is retracted, the top plate 2 is close to the bottom plate 1, so that the membrane to be tested on the rotating material tray is easily abutted against the sealing ring 305 on the test tank 304. In addition, a telescopic rod 22 and a buffer spring 23 are provided to improve the stability of the device. The booster pump 301 is used to boost the gas in the inner cavity of the gas filling tank 302. When the pressure in the inner cavity of the gas filling tank 302 increases, the pressure in the closed space formed by the test tank 304 and the gas film gradually increases until it reaches the standard pressure of the pressure gauge in the gas filling tank 302 and then stops. Then, after a period of rest, observe whether the pressure gauge index changes, and then judge whether the gas tightness of the gas film is good or not. All technical features in this embodiment can be freely combined according to actual needs.

[0035] The above embodiments are preferred implementation schemes of the present invention. In addition, the present invention may also be implemented in other ways. Any obvious replacement without departing from the concept of the present technical solution is within the protection scope of the present invention.

Claims

1. A gas meter membrane quality detection device, comprising a bottom plate (1) and a top plate (2) located above the bottom plate, characterized in that: Also includes, A sealing test mechanism (3) is installed on the top of the base plate (1) and is used to test the air tightness of the membrane; A rotating shaft (4) is rotatably mounted at the bottom center of the top plate (2); a gear (5) and a fixed plate (13) are sleeved on the outer wall of the middle section of the rotating shaft (4); the fixed plate (13) is located below the gear (5); a rotating material plate (6) is fixedly mounted on the bottom section of the rotating shaft (4); evenly distributed vacuum suction cups (7) are fixedly mounted on the bottom of the rotating material plate (6); and a dust removal component (8) is mounted on the top of the fixed plate (13); The angle adjustment component (9) is mounted on the bottom of the top plate (2), the adjustment end of the angle adjustment component (9) is meshingly connected with the outer wall of the gear (5), and the angle adjustment component (9) is arranged to avoid the rotating disk (6) and is used to adjust the rotation angle of the gear (5).

2. A gas meter membrane quality detection device according to claim 1, characterized in that: The rotation angle adjustment assembly (9) comprises a limit frame (901) fixedly mounted on the bottom of the top plate (2) and symmetrically distributed, a first fixed rod (902) slidably connected to the inner wall of the limit frame (901), and a second fixed rod (903) sleeved on the inner wall of the middle section of the first fixed rod (902).

3. A gas meter membrane quality detection device according to claim 2, characterized in that: The outer wall of one end of the second fixing rod (903) close to the rotating material disc (6) is provided with evenly distributed tooth grooves (904), the tooth grooves (904) are meshingly connected with the outer wall of the gear (5), and the end of the second fixing rod (903) away from the tooth grooves (904) is fixedly installed with a square limit frame (905); an L-shaped plate (10) is fixedly installed at the bottom of one end of the top plate (2) close to the square limit frame (905), a protective cover is fixedly installed on the top of the L-shaped plate (10), a driving shaft (11) is fixedly provided on the inner wall of the protective cover, an eccentric triangular block (12) is fixedly installed at the output end of the driving shaft (11), and the eccentric triangular block (12) abuts against the inner wall of the square limit frame (905); The dust removal component (8) comprises an air pump (801) fixedly arranged on the top of the fixed plate (13), the air pump (801) is arranged to avoid the gear (5), the air outlet end of the air pump (801) is connected to an annular tube (802), the bottom of the annular tube (802) is fixedly provided with evenly distributed telescopic tubes (803), the telescopic tubes (803) are communicated with the inner cavity of the annular tube (802), and the bottom end of any group of the telescopic tubes (803) passes through the fixed plate (13) and extends downward, and any group of the telescopic tubes (803) is provided with evenly distributed air outlet holes (804) on one side close to the vacuum suction cup (7); A support block (14) is fixedly mounted on the top of the fixed plate (13); a column (15) is fixedly mounted on one end of the support block (14); a pawl (16) is rotatably mounted on the outer wall of the middle section of the column (15); the pawl (16) is meshingly connected with the outer wall of the gear (5); a fixed cover (17) is fixedly mounted on the top section of the column (15); a torsion spring (18) is fixedly mounted between the pawl (16) and the fixed cover (17); the torsion spring (18) is sleeved on the outer wall of the top section of the column (15); and the fixed cover (17) is fixedly connected to the bottom of the top plate (2); The sealing test mechanism (3) comprises a booster pump (301) fixedly mounted on the top of the base plate (1); an air filling tank (302) is fixedly mounted on the air outlet end of the booster pump (301); the inner cavity of the air filling tank (302) is a through-hole structure; an air outlet pipe (303) communicating with the inner cavity of the air filling tank (302) is mounted at the top center of the air filling tank (302); and a test tank (304) is fixedly mounted on one end of the air outlet pipe (303) away from the air filling tank (302).

4. A gas meter membrane quality detection device according to claim 3, characterized in that: A sealing ring (305) is sleeved on the outer side wall of the top of the test tank (304), and symmetrically distributed pillars (306) are fixedly arranged between the inflation tank (302) and the test tank (304).

5. A gas meter membrane quality detection device according to claim 4, characterized in that: A triangular bracket (26) is fixedly mounted on the top of the bottom plate (1), the triangular bracket (26) is arranged to avoid the booster pump (301), and the top end of the triangular bracket (26) is sleeved on the outer wall of the air filling tank (302).

6. A gas meter membrane quality detection device according to claim 3, characterized in that: Symmetrically distributed vertical rods (24) are fixedly mounted on both ends of the first fixed rod (902), and a dust brush (25) is fixedly arranged on the bottom section of any group of the vertical rods (24).

7. A gas meter membrane quality detection device according to claim 6, characterized in that: An electric control box (19) is fixedly arranged on the top of the base plate (1), the electric control box (19) is arranged to avoid the sealing test mechanism (3), and a control panel (20) is fixedly installed on the outer wall of the electric control box (19).

8. A gas meter membrane quality detection device according to claim 7, characterized in that: A hydraulic telescopic cylinder (21) is fixedly mounted at the centre of both ends of the bottom plate (1) and the top plate (2), and evenly distributed telescopic rods (22) and buffer springs (23) are fixedly arranged between the bottom plate (1) and the top plate (2), wherein the buffer springs (23) are sleeved on the outer walls of the telescopic rods (22).

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