A pressure resistance detection device for water meter production

Abstract

The present invention discloses a pressure resistance detection device for water meter production, which includes a base and two slide rails. The bottom ends of the slide rails are fixedly connected to the top end of the base. An upper pressing mechanism is arranged between the two slide rails. The upper pressing mechanism includes a movable beam. Both ends of the movable beam are fixedly connected with U-shaped rails, and the U-shaped rails are slidably connected with the slide rails. A pneumatic pressure assembly is arranged at the bottom end of the movable beam. In the present invention, by rotating the first screw rod, the first screw rod drives the flexible circular clamping plate to move up and down. When the first screw rods at both ends are rotated spirally downward and the middle first screw rod is rotated spirally upward, the flexible circular clamping plate has a large bending angle. When the first screw rods at both ends are rotated spirally upward and the middle first screw rod is rotated spirally downward, the flexible circular clamping plate has a small bending angle, so that the flexible circular clamping plate is adjusted to the shape suitable for the conical interface of the water meter, achieving the effect of fixing the interface of the water meter and improving the detection accuracy of pressure detection on the interface of the water meter.

Description

Technical Field

[0001] The present invention relates to the technical field of water meter quality detection, and specifically relates to a pressure resistance detection device for water meter production. Background Technique

[0002] A water meter is an instrument for measuring water flow. According to its operating principle, water meters can be divided into velocity water meters and volumetric water meters. When traditional water meters are produced and processed, pressure resistance tests are required. The pressure resistance standards for different water meters are also different. Generally, the pressure of a water meter does not exceed 1.6 MPa, and the maximum pressure resistance of a high-pressure water meter can reach 4 MPa.

[0003] In the prior art, such as the "pressure resistance detection device for water meter production" in Chinese Patent Application CN114166316A, it includes a workbench, a second support plate and a first support plate fixedly connected to the workbench through a third support plate, an installation material. The installation groove is opened at the side end of the workbench. A clamping structure for fixing the water meter is installed inside the installation groove. A first limit groove is opened at the side end of the first support plate. A first rack plate is slidably installed inside the first limit groove. Limit blocks integrally formed with the first rack plate are installed on both sides of the first rack plate. The limit blocks are slidably matched with the first limit groove. By the force application block, the separating part is driven to stand and descend to make the first wire and the second wire in a disconnected state, so that the motor stops working, and thus it can be obtained whether the tested water meter can withstand the rated pressure and whether it meets the standard.

[0004] However, in the prior art, the pressure resistance detection of water pressure only detects the surface position pressure of the water meter. If the water pressure at the interface of the water meter is too high, resulting in the interface being unable to withstand the water supply pressure, it will cause the water meter pipeline to burst and leak. Since the positions of the two ends of the water meter interface are low and the ports are conical, ordinary pressure resistance test devices cannot perform pressure resistance tests on the water meter ports. Summary of the Invention

[0005] The purpose of the present invention is to provide a pressure resistance detection device for water meter production to solve the problem in the above background technique that the pressure resistance detection of water pressure only detects the surface position pressure of the water meter. If the water pressure at the interface of the water meter is too high, resulting in the interface being unable to withstand the water supply pressure, it will cause the water meter pipeline to burst and leak. Since the positions of the two ends of the water meter interface are low and the ports are conical, ordinary pressure resistance test devices cannot perform pressure resistance tests on the water meter ports.

[0006] To achieve the above object, the present invention provides the following technical solution: A pressure resistance detection device for water meter production, including a base and two slide rails. The bottom end of the slide rail is fixedly connected to the top end of the base. An upper pressing mechanism is arranged between the two slide rails. The upper pressing mechanism includes a movable beam. Both ends of the movable beam are fixedly connected with U-shaped rails. The U-shaped rails are slidably connected with the slide rails. An air pressure component is arranged at the bottom end of the movable beam. During use, the water meter is placed above the second cross beam. After being fixed with a fixture, the water port to be subjected to the pressure test is placed between the arc clamping plate and the flexible circular clamping plate;

[0007] The air pressure component includes an upper pressing plate. The upper pressing plate is fixedly connected with the movable beam. A ventilation column is fixedly connected to the bottom end of the upper pressing plate. A positioning plate is fixedly connected to the bottom end of the ventilation column. A first positioning frame is fixedly connected to the outer side wall of the positioning plate. A flexible circular clamping plate is movably connected to the bottom end of the first positioning frame. The flexible circular clamping plate is a hollow shell structure. An airbag is arranged inside the flexible circular clamping plate. A first screw rod is rotatably connected to the top end of the flexible circular clamping plate. The first screw rod is threadedly connected with the positioning plate;

[0008] A lower pressing mechanism is arranged below the upper pressing mechanism. The lower pressing mechanism includes a second cross beam. Both ends of the second cross beam are respectively fixedly connected with the slide rails. A lower pressing plate is fixedly connected to the top end of the second cross beam. A lower pressing column is fixedly connected to the top end of the lower pressing plate. A second positioning frame is fixedly connected to the top end of the lower pressing column. An arc clamping plate is movably connected to the top end of the second positioning frame. A second screw rod is rotatably connected to the bottom end of the arc clamping plate. The second screw rod is threadedly connected with the bottom surface of the second positioning frame.

[0009] Preferably, an air pump is arranged outside the base. A cylinder is fixedly connected to the top end of the movable beam. By arranging an air pump on one side of the base and filling the airbag with gas through the air pump, the air pressure in the flexible circular clamping plate is increased, so that the test pressure of the flexible circular clamping plate and the arc clamping plate on the water meter is increased, realizing the pressure resistance test of the water meter port.

[0010] Preferably, a first cross beam is arranged above the movable beam. Both ends of the first cross beam are respectively fixedly connected with the slide rails. The first cross beam is located at the top end position of the slide rails. The downward movement distance of the movable beam is positioned by the slide rails.

[0011] Preferably, a top plate is fixedly connected to the outer side wall of the first cross beam, and a bottom plate is fixedly connected to the outer side wall of the movable beam. A cylinder is fixedly connected to the top surface of the top plate. The output end of the cylinder penetrates through the top plate and is fixedly connected to the bottom plate. When testing the water meter for pressure resistance, the movable beam is moved downward to make the flexible circular clamp plate and the arc clamp plate close to each other. By starting the cylinder, the output end of the cylinder drives the bottom plate to move downward, so that the bottom plate drives the movable beam to move downward. The movable beam moves downward along the slide rail through the U-shaped rails at both ends, realizing the fixed clamping between the arc clamp plate and the flexible circular clamp plate.

[0012] Preferably, positioning holes are provided on the outer side wall of the slide rail. The slide rail is movably inserted with pins through the positioning holes, and the slide rail is movably clamped with the second cross beam through the pins. A tension spring is fixedly connected between the movable beam and the first cross beam. By providing positioning holes and pins on the outer side wall of the slide rail, the positioning effect on the second cross beam is realized, thereby adjusting the initial distance between the second cross beam and the movable beam, and facilitating the adjustment of different height positions of the mechanical energy of the second cross beam according to water meters of different pipe diameters.

[0013] Preferably, a knob is fixedly connected to the top end of the first screw rod, and a ventilation pipe is fixedly connected to the top end of the positioning plate. The air of the air pump is transmitted to the booster pump. The gas port of the booster pump is transmitted to the upper pressure plate through the movable beam, and is transmitted to the ventilation pipe through the ventilation column, and finally penetrates through the flexible circular clamp plate and is filled into the air bag, realizing the effect of pressurizing the outer surface of the flexible circular clamp plate, and increasing the effect of pressure testing on the water meter between the flexible circular clamp plate and the arc clamp plate.

[0014] Preferably, the bottom end of the ventilation pipe penetrates through the top wall of the flexible circular clamp plate and is fixedly connected to the air bag.

[0015] Preferably, the flexible circular clamp plate is made of shape memory metal material, and lubricants are applied to the outer surface of the knob and the outer surface of the second screw rod. The flexible circular clamp plate is made of shape memory metal material, realizing the adjustable shape effect of the flexible circular clamp plate. By the cylinder providing downward pressure on the movable beam, extrusion is generated between the arc clamp plate and the flexible circular clamp plate, realizing the effect of pressure testing on the outer surface of the water meter.

[0016] Preferably, anti-slip stripes are fixedly connected to the top surface of the arc clamp plate and the bottom surface of the flexible circular clamp plate. The gas of the air pump is transmitted to the booster pump through the air guide pipe, and the booster pump realizes the pressurizing effect on the inside of the flexible circular clamp plate.

[0017] Preferably, a booster pump is fixedly connected to the bottom end of the movable beam, and an air guide pipe is fixedly connected between the booster pump and the air pump.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] 1. In the present invention, by rotating the first screw rod, the first screw rod drives the flexible circular clamping plate to move up and down. When the first screw rods at both ends are rotated spirally downward and the first screw rod in the middle is rotated spirally upward, the bending angle of the flexible circular clamping plate is large and the radius of the water meter port to be clamped correspondingly is small. When the first screw rods at both ends are rotated spirally upward and the first screw rod in the middle is rotated spirally downward, the bending angle of the flexible circular clamping plate is small and the radius of the water meter port to be clamped correspondingly is large. By adjusting the first screw rods at each position, the flexible circular clamping plate is adjusted to fit the shape of the conical interface of the water meter, achieving the effect of fixing the water meter interface, improving the detection accuracy of the pressure detection at the water meter interface, and making the pressure detection of the water meter more accurate.

[0020] 2. In the present invention, by starting the cylinder, the output end of the cylinder drives the bottom plate to move downward, so that the bottom plate drives the movable beam to move downward, and the movable beam moves downward along the slide rail through the U-shaped rails at both ends, achieving the fixed clamping between the arc clamping plate and the flexible circular clamping plate. The cylinder drives the flexible circular clamping plate to continuously pressurize the arc clamping plate, achieving the effect of surface pressure testing of the water meter.

[0021] 3. In the present invention, the gas of the air pump is transmitted to the booster pump through the air duct. The booster pump receives the external gas and simultaneously pressurizes the ventilation column below. The pressurized gas is conveyed into the flexible circular clamping plate through the ventilation pipe and finally fills the airbag inside the flexible circular clamping plate. The air pressure generated by the airbag extrudes the bottom wall of the flexible circular clamping plate to enhance the pressure received by the water meter surface, strengthening the effect of water meter pressure testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is the overall structural schematic diagram of a pressure resistance detection device for water meter production according to the present invention;

[0023] Figure 2 is the bottom structural schematic diagram of a pressure resistance detection device for water meter production according to the present invention;

[0024] Figure 3 is the structural schematic diagram of the upper pressure mechanism and the lower pressure mechanism of a pressure resistance detection device for water meter production according to the present invention;

[0025] Figure 4 is the partial structural diagram of the pneumatic pressure component of a pressure resistance detection device for water meter production according to the present invention;

[0026] Figure 5 is the half-sectional view of the pneumatic pressure component of a pressure resistance detection device for water meter production according to the present invention;

[0027] Figure 6 is the explosion effect of the partial structure of the pneumatic pressure component of a pressure resistance detection device for water meter production according to the present inventionFigure 1 ;

[0028] Figure 7 Explosion effect of the pneumatic pressure component part structure of a pressure resistance detection device for water meter production according to the present invention Figure 2 。

[0029] In the figure:

[0030] 1. Base; 2. Air pump; 3. Booster pump; 4. Slide rail;

[0031] 5. Upper pressing mechanism; 51. Top plate; 52. Cylinder; 53. Bottom plate; 54. Movable beam; 55. U-shaped rail; 56. Tension spring;

[0032] 57. Pneumatic pressure component; 571. Upper pressing plate; 572. Ventilation column; 573. First positioning frame; 574. Flexible circular clamping plate; 575. Knob; 576. First screw; 577. Positioning plate; 578. Ventilation pipe; 579. Airbag; 58. First cross beam;

[0033] 6. Lower pressing mechanism; 61. Second cross beam; 62. Lower pressing plate; 63. Lower pressing column; 64. Second positioning frame; 65. Arc clamping plate; 66. Second screw; 7. Air duct. Specific implementation manner

[0034] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0035] Refer to Figure 1-7As shown: A pressure resistance detection device for water meter production, including a base 1 and two slide rails 4. The bottom end of the slide rail 4 is fixedly connected to the top end of the base 1. An upper pressing mechanism 5 is arranged between the two slide rails 4. The upper pressing mechanism 5 includes a movable beam 54. U-shaped rails 55 are fixedly connected to both ends of the movable beam 54. The U-shaped rails 55 are slidably connected to the slide rails 4. A pneumatic pressure component 57 is arranged at the bottom end of the movable beam 54. When in use, place the water meter above the second cross beam 61. After fixing it with a fixture, place the water meter port to be pressure-tested between the arc-shaped clamping plate 65 and the flexible circular clamping plate 574; The pneumatic pressure component 57 includes an upper pressing plate 571. The upper pressing plate 571 is fixedly connected to the movable beam 54. A ventilation column 572 is fixedly connected to the bottom end of the upper pressing plate 571. A positioning plate 577 is fixedly connected to the bottom end of the ventilation column 572. A first positioning frame 573 is fixedly connected to the outer side wall of the positioning plate 577. A flexible circular clamping plate 574 is movably connected to the bottom end of the first positioning frame 573. The flexible circular clamping plate 574 is a hollow shell structure. An airbag 579 is arranged inside the flexible circular clamping plate 574. A first screw 576 is rotatably connected to the top end of the flexible circular clamping plate 574. The first screw 576 is threadedly connected to the positioning plate 577. Rotate the first screw 576. The first screw 576 moves up and down on the positioning plate 577, so that the bottom end of the first screw 576 drives the flexible circular clamping plate 574 to move up and down. Since the flexible circular clamping plate 574 is a hollow shell structure and the airbag 579 is arranged inside the flexible circular clamping plate 574, both sides of the flexible circular clamping plate 574 are fixedly connected to the first positioning frame 573, and both ends of the flexible circular clamping plate 574 are movably connected to the first positioning frame 573, so that the bending angle at both ends of the flexible circular clamping plate 574 can be changed. Rotate the first screws 576 at both ends downward in a spiral manner, and the first screw 576 in the middle moves upward in a spiral manner, so that the bending angle of the flexible circular clamping plate 574 is large and the radius of the water meter port clamped correspondingly is small. Rotate the first screws 576 at both ends upward in a spiral manner, and the first screw 576 in the middle moves downward in a spiral manner, so that the bending angle of the flexible circular clamping plate 574 is small and the radius of the water meter port clamped correspondingly is large;Below the upper pressing mechanism 5 is provided with a lower pressing mechanism 6. The lower pressing mechanism 6 includes a second cross beam 61. The two ends of the second cross beam 61 are respectively fixedly connected to the slide rails 4. The top end of the second cross beam 61 is fixedly connected with a lower pressing plate 62. The top end of the lower pressing plate 62 is fixedly connected with a lower pressing column 63. The top end of the lower pressing column 63 is fixedly connected with a second positioning frame 64. The top end of the second positioning frame 64 is movably connected with an arc clamping plate 65. The bottom end of the arc clamping plate 65 is rotatably connected with a second screw rod 66. The second screw rod 66 is threadedly connected to the bottom surface of the second positioning frame 64. Since the port of the water meter is in a conical structure, during use, the water meter is placed above the arc clamping plate 65. By rotating the second screw rod 66 at the smaller end of the water meter port, the second screw rod 66 drives the arc clamping plate 65 to move upward. The rotation amplitude of the second screw rods 66 at both ends is greater than that of the second screw rod 66 at the middle end, so that the rotation amplitude of the arc clamping plates 65 at both ends is larger, the radius of the arc clamping plate 65 is reduced, and the radius of the arc clamping plate 65 on the other side is larger, so that the outer surface of the arc clamping plate 65 fits with the conical water meter port.;

[0036] As Figure 1 and Figure 2 As shown, an air pump 2 is provided on the outside of the base 1. The top end of the movable beam 54 is fixedly connected with a cylinder 52. Above the movable beam 54 is provided a first cross beam 58. The two ends of the first cross beam 58 are respectively fixedly connected to the slide rails 4. The outer side wall of the first cross beam 58 is fixedly connected with a top plate 51. The outer side wall of the movable beam 54 is fixedly connected with a bottom plate 53. The top surface of the top plate 51 is fixedly connected with a cylinder 52. The output end of the cylinder 52 penetrates through the top plate 51 and is fixedly connected to the bottom plate 53. By providing an air pump 2 on one side of the base 1 and filling the air bag 579 with gas through the air pump 2, the air pressure of the flexible circular clamping plate 574 is increased, and the test pressure of the flexible circular clamping plate 574 and the arc clamping plate 65 on the water meter is increased, realizing the pressure resistance test of the water meter port. The first cross beam 58 is located at the top end position of the slide rail 4. The distance of the downward movement of the movable beam 54 is positioned by the slide rail 4. When it is necessary to test the pressure resistance of the water meter, the movable beam 54 is moved downward so that the flexible circular clamping plate 574 and the arc clamping plate 65 are in close contact. By starting the cylinder 52, the output end of the cylinder 52 drives the bottom plate 53 to move downward, so that the bottom plate 53 drives the movable beam 54 to move downward. The movable beam 54 moves downward along the slide rail 4 through the U-shaped rails 55 at both ends, realizing the fixed clamping between the arc clamping plate 65 and the flexible circular clamping plate 574.

[0037] As Figure 1 、 Figure 2 and Figure 7As shown in the figure, positioning holes are provided on the outer side wall of the slide rail 4. The slide rail 4 is movably inserted with a pin through the positioning holes, and the slide rail 4 is movably clamped with the second cross beam 61 through the pin. A tension spring 56 is fixedly connected between the movable beam 54 and the first cross beam 58. The top end of the first screw rod 576 is fixedly connected with a knob 575, and the top end of the positioning plate 577 is fixedly connected with a ventilation pipe 578. The bottom end of the ventilation pipe 578 penetrates through the top wall of the flexible circular clamping plate 574 and is fixedly connected with an air bag 579. By providing positioning holes and pins on the outer side wall of the slide rail 4, the positioning effect on the second cross beam 61 is realized, so as to adjust the initial distance between the second cross beam 61 and the movable beam 54, and it is convenient to adjust the mechanical energy of the second cross beam 61 to different height positions according to water meters with different pipe diameters. The air of the air pump 2 is transmitted to the booster pump 3. The gas port of the booster pump 3 is transmitted to the upper pressing plate 571 through the movable beam 54, and is transmitted to the ventilation pipe 578 through the ventilation column 572, and finally penetrates through the flexible circular clamping plate 574 and is filled into the air bag 579, realizing the effect of pressurizing the outer surface of the flexible circular clamping plate 574 and increasing the pressure test effect on the water meter between the flexible circular clamping plate 574 and the arc-shaped clamping plate 65.

[0038] As Figure 1 , Figure 3 and Figure 6 shown in the figure, the flexible circular clamping plate 574 is made of memory metal material, and lubricants are applied to the outer surfaces of the knob 575 and the second screw rod 66. Anti-slip stripes are fixedly connected to the top surface of the arc-shaped clamping plate 65 and the bottom surface of the flexible circular clamping plate 574. The bottom end of the movable beam 54 is fixedly connected with a booster pump 3, and a guide pipe 7 is fixedly connected between the booster pump 3 and the air pump 2. The flexible circular clamping plate 574 is made of metal material, realizing the adjustable shape effect of the flexible circular clamping plate 574. By providing a downward pressure on the movable beam 54 through the air cylinder 52, extrusion is generated between the arc-shaped clamping plate 65 and the flexible circular clamping plate 574, realizing the pressure test effect on the outer surface of the water meter. The gas of the air pump 2 is transmitted to the booster pump 3 through the guide pipe 7, and the booster pump 3 realizes the pressurization effect inside the flexible circular clamping plate 574.

[0039] Usage method and working principle of this device: Fix the water meter using a fixture, place the water meter port between the arc clamping plate 65 and the flexible circular clamping plate 574. Rotate the first screw rod 576 to make the flexible circular clamping plate 574 on the side with the smaller port contract, reducing the radius, and make the flexible circular clamping plate 574 on the side with the larger port expand, increasing the radius. At the same time, rotate the second screw rod 66 to adjust the arc clamping plate 65 to the shape of the water meter port. Start the cylinder 52, and the cylinder 52 drives the bottom plate 53 to move downward, causing the bottom plate 53 to drive the movable beam 54 to move downward. The flexible circular clamping plate 574 and the arc clamping plate 65 clamp the water meter port. Transmit the gas of the air pump 2 to the booster pump 3 through the air duct 7, and the booster pump 3 fills the inside of the airbag 579 with gas through the ventilation column 572 and the ventilation pipe 578, increasing the air pressure at the bottom end of the flexible circular clamping plate 574, achieving the effect of fine adjustment of the pressure for water meter pressure testing.

[0040] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A pressure resistance detection device for water meter production, comprising a base (1) and two slide rails (4), characterized in that: The bottom end of the slide rail (4) is fixedly connected to the top end of the base (1). An upper pressing mechanism (5) is arranged between the two slide rails (4). The upper pressing mechanism (5) includes a movable beam (54). U-shaped rails (55) are fixedly connected to both ends of the movable beam (54). The U-shaped rails (55) are slidably connected to the slide rails (4). An air pressure component (57) is arranged at the bottom end of the movable beam (54). The air pressure component (57) includes an upper pressing plate (571). The upper pressing plate (571) is fixedly connected to the movable beam (54). A ventilation column (572) is fixedly connected to the bottom end of the upper pressing plate (571). A positioning plate (577) is fixedly connected to the bottom end of the ventilation column (572). A first positioning frame (573) is fixedly connected to the outer side wall of the positioning plate (577). A flexible circular clamping plate (574) is movably connected to the bottom end of the first positioning frame (573). The flexible circular clamping plate (574) is a hollow shell structure. An air bag (579) is arranged inside the flexible circular clamping plate (574). A first screw rod (576) is rotatably connected to the top end of the flexible circular clamping plate (574). The first screw rod (576) is threadedly connected to the positioning plate (577). A lower pressing mechanism (6) is arranged below the upper pressing mechanism (5). The lower pressing mechanism (6) includes a second cross beam (61). The two ends of the second cross beam (61) are respectively fixedly connected to the slide rails (4). A lower pressing plate (62) is fixedly connected to the top end of the second cross beam (61). A lower pressing column (63) is fixedly connected to the top end of the lower pressing plate (62). A second positioning frame (64) is fixedly connected to the top end of the lower pressing column (63). An arc-shaped clamping plate (65) is movably connected to the top end of the second positioning frame (64). A second screw rod (66) is rotatably connected to the bottom end of the arc-shaped clamping plate (65). The second screw rod (66) is threadedly connected to the bottom surface of the second positioning frame (64).

2. The pressure resistance detection device for water meter production according to claim 1, characterized in that: An air pump (2) is arranged outside the base (1). A cylinder (52) is fixedly connected to the top end of the movable beam (54).

3. A pressure resistance detection device for water meter production according to claim 1, characterized in that: A first cross beam (58) is arranged above the movable beam (54). The two ends of the first cross beam (58) are respectively fixedly connected to the slide rails (4).

4. A pressure resistance detection device for water meter production according to claim 3, characterized in that: A top plate (51) is fixedly connected to the outer side wall of the first cross beam (58). A bottom plate (53) is fixedly connected to the outer side wall of the movable beam (54). A cylinder (52) is fixedly connected to the top surface of the top plate (51). The output end of the cylinder (52) penetrates through the top plate (51) and is fixedly connected to the bottom plate (53).

5. The pressure resistance detection device for water meter production according to claim 3, characterized in that: Positioning holes are arranged on the outer side wall of the slide rail (4). The slide rail (4) is movably inserted with pins through the positioning holes. The slide rail (4) is movably clamped with the second cross beam (61) through the pins. A tension spring (56) is fixedly connected between the movable beam (54) and the first cross beam (58).

6. The pressure resistance detection device for water meter production according to claim 1, characterized in that: The top end of the first screw rod (576) is fixedly connected with a knob (575), and the top end of the positioning plate (577) is fixedly connected with a ventilation pipe (578).

7. A pressure resistance detection device for water meter production according to claim 6, characterized in that: The bottom end of the ventilation pipe (578) penetrates through the top wall of the flexible circular clamping plate (574) and is fixedly connected with the airbag (579).

8. A pressure resistance detection device for water meter production according to claim 6, characterized in that: The flexible circular clamping plate (574) is made of a shape memory metal material, and lubricants are applied to the outer surfaces of the knob (575) and the second screw rod (66).

9. The pressure resistance detection device for water meter production according to claim 2, characterized in that: Anti-slip stripes are fixedly connected to the top surface of the arc-shaped clamping plate (65) and the bottom surface of the flexible circular clamping plate (574).

10. A pressure resistance detection device for water meter production according to claim 2, characterized in that: The bottom end of the movable beam (54) is fixedly connected with a booster pump (3), and a gas guide pipe (7) is fixedly connected between the booster pump (3) and the air pump (2).

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