Air tightness detection device for mechanical seal

Abstract

The invention discloses a mechanical seal air tightness detection device, which comprises a bearing fixed bottom assembly and an air compression detection mechanism, positioning clamping assemblies assembled by bolts are arranged at two ends above the bearing fixed bottom assembly, and the air compression detection mechanism assembled by bolts is arranged at the top end of the periphery of the bearing fixed bottom assembly. According to the device, cameras below the two ends of a lifting base plate are mainly used for conducting real-time shooting, and in the shooting process, output power of a hydraulic cylinder drives output operation of a hydraulic pull rod, and then the lifting base plate is adjusted to the proper height position; through linkage descending of the continuous pressure rod and the damping base, the pressure measuring plate carries out pressure measuring operation on a product clamped by equipment, and the upper mechanical arm, the electric hinge seat and the mechanical clamp are matched to carry out micro clamping on the clamped product, so that the airtightness of the product can be accurately measured; and the equipment has the function of adapting to products with various hardness.

Description

Technical Field

[0001] The invention relates to the technical field of air tightness detection, in particular to an air tightness detection device of a mechanical seal. Background Art

[0002] Airtightness testing is a rigorous integrity assessment of aircraft, automobile shells, ships and internal containers. It is a quality control application developed for the transportation sector, military sector and basic industry to improve the airtightness of vehicles, aircraft, ships, etc. The ultrasonic transmitter is placed inside the container. Due to the characteristics of ultrasonic waves, these waves can penetrate small holes. Using an ultrasonic detection system to detect outside the container, the inspector can quickly find the source of the defect, which may become a potential leak or wind noise point. Mechanical seals are shaft sealing devices for rotating machinery, such as centrifugal pumps, centrifuges, reactors and compressors. Since the drive shaft runs through the inside and outside of the equipment, there is a circumferential gap between the shaft and the equipment. The medium in the equipment leaks outward through the gap. If the pressure inside the equipment is lower than atmospheric pressure, air leaks into the equipment. Therefore, there must be a shaft sealing device to prevent leakage. The airtightness test is mainly to check whether there is leakage at the various connection parts of the container. Pressure vessels with extremely or highly hazardous medium toxicity or design that do not allow trace leakage must undergo airtightness testing.

[0003] When the existing air tightness detection device is in use, such as application number CN202021314075.4 which relates to the field of mechanical technology, it is specifically an air tightness detection device of a containerized mechanical seal, comprising an outer shell, a top cover screwed on the upper end of the outer shell, a base integrally formed at the lower end of the outer shell, and a limited position seat integrally formed at the bottom of the inner part of the outer shell. The utility model engages the bottom of the containerized mechanical seal with the corresponding limit seat, and allows the sealing ring to fill the gap between the containerized mechanical seal and the limit seat, and rotates the top cover to make the limit groove at the lower end of the sealing block correspond to the top of the containerized mechanical seal. When the air cylinder is inflated, the gas enters the containerized mechanical seal through the one-way valve, and the gas leaks into the outer cavity, and the air flow is discharged through the air outlet pipe. When the air flow is sensed, the sealing problem occurs. When the resistance becomes greater and greater during the inflation process of the air cylinder until it is difficult to press down, the sealing is good, the sealing inside the containerized mechanical seal is guaranteed, the detection efficiency is improved, and the operation is more convenient. However, in the above-mentioned technology, the detection is mainly carried out in a confined space, which is not conducive to the operation of adaptability test for products of different textures. For this reason, we propose an airtightness detection device for mechanical seal to solve the above-mentioned problem. Summary of the invention

[0004] In view of the above problems, the present invention proposes an airtightness detection device for a mechanical seal, which mainly utilizes cameras under the two ends of a lifting base plate to perform real-time shooting. During the shooting process, the output power of the hydraulic cylinder drives the output of the hydraulic pull rod to adjust the lifting base plate to a suitable height position, so that the connecting pressure rod and the shock-absorbing base are linked to descend, so that the pressure measuring plate performs pressure testing on the product clamped by the equipment, and cooperates with the mechanical arm, electric articulated seat, and mechanical clamp to perform micro-clamping on the clamped product, so that the product can be accurately measured for airtightness, so that the equipment has the function of adapting to various types of hardness products.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A mechanical seal air tightness detection device includes a load-bearing and bottom-fixing component and a compressed air detection mechanism, wherein the upper two ends of the load-bearing and bottom-fixing component are provided with positioning clamping components assembled with bolts, and the top of the four sides of the load-bearing and bottom-fixing component are provided with a compressed air detection mechanism assembled with bolts.

[0007] As a further technical solution, the bearing and bottom fixing assembly includes a pad base plate, a bolt bracket, a water tank shell, an inlet valve block, a drain valve block, a heightening block, a grid base plate, a spherical pad, an inner base plate, a limiting telescopic rod, a first arc plate, a spring rod and a first flexible arc clamp, bolt brackets for bolt assembly are arranged above both ends of the pad base plate, and a water tank shell for bolt assembly is arranged on the top side of the bolt bracket, a water inlet valve block for socket installation is arranged on the upper side of the water tank shell, and a drain valve block for socket installation is arranged at the output end of the water tank shell.

[0008] As a further technical solution, a raising block is provided on the inner bottom side of the water tank shell, and a grid substrate is provided on the top side of the raising block, a spherical pad is provided above the grid substrate, an inner substrate assembled with bolts is provided on the inner side of the water tank shell, and a limiting telescopic rod is provided on the inner side of the inner substrate, a first arc plate is provided at the inner end of the limiting telescopic rod, and a spring rod is provided on the inner side of the middle part of the first arc plate, and first flexible arc clamps are provided on both end sides of the first arc plate.

[0009] As a further technical solution, the positioning and clamping assembly includes an end base, a slotted frame, a handle, a gearbox, a drive motor, a first gear, a second gear, a third gear, a fourth gear, a fifth gear, a screw group, a movable base, a connecting plate, a limiting sleeve, a second arc plate and a second flexible arc clamp. The end base is bolted to the top of the two ends of the water tank shell, a slotted frame is arranged on the upper inner side of the end base, and a handle is arranged at the outer end of the slotted frame, and a fifth gear is arranged at the output end of the handle.

[0010] As a further technical solution, a gearbox is arranged above the outer end of the slotting frame, and a driving motor is arranged at the outer end of the gearbox, a first gear is arranged at the output end of the driving motor, a second gear meshingly connected is arranged at the output end of the first gear, a third gear is arranged at the output end of the second gear, and a fourth gear is arranged at the output end of the third gear.

[0011] As a further technical solution, a screw rod group is provided on the inner side of the slotted frame, and the screw rod group is threadedly connected to a movable base, a connecting plate is provided at the bottom end of the movable base, and a limiting sleeve is provided on the lower outer side of the connecting plate, a second arc plate is provided on the inner side of the connecting plate, and a second flexible arc clamp is provided on the side of the second arc plate.

[0012] As a further technical solution, the compressed air detection mechanism includes a lower bolt base, a lifting frame, a cross partition, a top plate, an assembly cabin, a hydraulic cylinder, a hydraulic pull rod, a lifting base plate, a camera, a mechanical arm, an electric articulated seat, a mechanical clamp, a connecting pressure rod, a shock-absorbing base and a pressure measuring plate. The lower bolt base is bolted to the top of the pad base plate on all sides, a lifting frame is arranged on the top side of the lower bolt base, and a cross partition is arranged on the inner side of the middle part of the lifting frame, a top plate is arranged on the top of the lifting frame, and an assembly cabin with bolt sleeves is arranged on the inner side of the top plate.

[0013] As a further technical solution, a hydraulic cylinder is provided at the top of the assembly cabin, and a hydraulic pull rod is provided at the output end of the hydraulic cylinder, a lifting base plate is provided at the bottom end of the hydraulic pull rod, and cameras are provided below both ends of the lifting base plate.

[0014] As a further technical solution, a mechanical arm is arranged below the side of the lifting base plate, and an electric articulated seat with hinge transmission is arranged at the output end of the mechanical arm, a mechanical clamp is arranged at the output end of the electric articulated seat, a connecting pressure rod is arranged below the middle part of the lifting base plate, and a shock-absorbing base is arranged at the bottom end of the connecting pressure rod, and a pressure measuring plate is arranged below the shock-absorbing base.

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

[0016] The device of the invention mainly utilizes the cameras below the two ends of the lifting baseplate for real-time shooting. During the shooting process, the output power of the hydraulic cylinder drives the output of the hydraulic pull rod to adjust the lifting baseplate to a suitable height position, so that the linkage of the pressure rod and the shock-absorbing base descends, so that the pressure plate performs pressure measurement on the product clamped by the equipment, and cooperates with the mechanical arm, electric articulated seat, and mechanical clamp to perform micro-clamping on the clamped product, so that the product can be accurately measured for air tightness, so that the equipment has the function of adapting to various hardness products. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of a mechanical seal air tightness detection device;

[0018] Figure 2 It is a bottom-up three-dimensional structural schematic diagram of the present invention;

[0019] Figure 3 It is a cross-sectional three-dimensional structural schematic diagram of the present invention;

[0020] Figure 4 Schematic diagram of the three-dimensional structure of the load-bearing and bottom-fixing assembly of the present invention

[0021] Figure 5 It is a schematic diagram of the structure of the positioning and clamping assembly of the present invention;

[0022] Figure 6 It is a schematic diagram of the three-dimensional structure of the compressed air detection mechanism of the present invention.

[0023] Among them: 1. Load-bearing bottom assembly; 101. Pad base plate; 102. Bolt bracket; 103. Water tank shell; 104. Inlet valve block; 105. Drain valve block; 106. Heightening block; 107. Grid base plate; 108. Spherical pad; 109. Inner base plate; 1010. Limit telescopic rod; 1011. First arc plate; 1012. Spring rod; 1013. First flexible arc clamp; 2. Positioning clamp assembly; 201. End base; 202. Slotted frame; 203. Handle; 204. Gearbox; 205. Drive motor; 206. First gear; 207. Second gear; 208. Third gear; 209. Fourth gear Wheel; 2010, fifth gear; 2011, screw rod group; 2012, mobile base; 2013, connecting plate; 2014, limiting sleeve; 2015, second arc plate; 2016, second flexible arc clamp; 3, compressed air detection mechanism; 301, lower bolt base; 302, lifting frame; 303, cross partition; 304, top plate; 305, assembly sleeve; 306, hydraulic cylinder; 307, hydraulic pull rod; 308, lifting base plate; 309, camera; 3010, mechanical arm; 3011, electric articulated seat; 3012, mechanical fixture; 3013, connecting pressure rod; 3014, shock absorbing base; 3015, pressure measuring plate. DETAILED DESCRIPTION

[0024] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", and the like may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0025] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] See also Figure 1-6 In an embodiment of the present invention, a mechanical seal air tightness detection device includes a load-bearing and bottom-fixing component 1 and a compressed air detection mechanism 3, wherein the upper two ends of the load-bearing and bottom-fixing component 1 are provided with positioning clamping components 2 assembled with bolts, and the top parts of the four sides of the load-bearing and bottom-fixing component 1 are provided with compressed air detection mechanisms 3 assembled with bolts.

[0028] The bearing bottom fixing assembly 1 includes a pad base plate 101, a bolt bracket 102, a water tank shell 103, an inlet valve block 104, a drain valve block 105, a heightening block 106, a grid base plate 107, a spherical pad 108, an inner base plate 109, a limiting telescopic rod 1010, a first arc plate 1011, a spring rod 1012 and a first flexible arc clamp 1013. Bolt brackets 102 assembled with bolts are arranged above both ends of the pad base plate 101, and a water tank shell 103 assembled with bolts is arranged on the top side of the bolt bracket 102. A water inlet valve block 104 installed in a sleeve manner is arranged on the upper side of the water tank shell 103, and a drain valve block 105 installed in a sleeve manner is arranged at the output end of the water tank shell 103.

[0029] In the embodiment of the present invention, when in use, the device is placed at the processing site through the pad base plate 101, so that the top of the pad base plate 101 is used to assemble the positioning clamping assembly 2 and the compressed air detection mechanism 3 through a bolt structure, and the drain valve block 105 is closed, and the water inlet valve block 104 is opened to allow water to be input. After the water is input, the water enters the water tank shell 103 to achieve an appropriate amount of filling.

[0030] A raising block 106 is provided on the inner bottom side of the water tank shell 103, and a grid substrate 107 is provided on the top side of the raising block 106, a spherical pad 108 is provided above the grid substrate 107, an inner side of the water tank shell 103 is provided with an inner substrate 109 assembled with bolts, and a limiting telescopic rod 1010 is provided on the inner side of the inner substrate 109, a first arc plate 1011 is provided at the inner end of the limiting telescopic rod 1010, and a spring rod 1012 is provided on the inner side of the middle part of the first arc plate 1011, and first flexible arc clamps 1013 are provided on both end sides of the first arc plate 1011.

[0031] In an embodiment of the present invention, when it is necessary to place a detection product, the detection product is placed on the grid substrate 107 on the top side of the raising block 106, and the detection product is placed on the top side of the spherical pad 108 to achieve the effect of preventing the bottom from isolating the water body. When bottom positioning is required, the first flexible arc clamp 1013 on the side of the first arc plate 1011 cooperates with each other to make the material clamped, so that the product can be stably clamped under the elastic clamping action of the inner substrate 109, the limiting telescopic rod 1010, the first arc plate 1011, and the spring rod 1012.

[0032] The positioning and clamping assembly 2 includes an end base 201, a slotted frame 202, a handle 203, a gearbox 204, a drive motor 205, a first gear 206, a second gear 207, a third gear 208, a fourth gear 209, a fifth gear 2010, a screw group 2011, a movable base 2012, a connecting plate 2013, a limiting sleeve 2014, a second arc plate 2015 and a second flexible arc clamp 2016. The end base 201 is bolted to the top of the two ends of the water tank shell 103, a slotted frame 202 is arranged on the inner side above the end base 201, and a handle 203 is arranged at the outer end of the slotted frame 202, and the output end of the handle 203 is arranged at the fifth gear 2010.

[0033] In an embodiment of the present invention, when manual operation is required, the handle 203 at the outer end of the slotted frame 202 is used to output power to drive the output end to operate, so that after the handle 203 outputs power to operate, the screw group 2011 on the slotted frame 202 performs output operation, and the screw group 2011 drives the moving base 2012 to operate, so that the connecting plate 2013 cooperates with the displacement of the second arc plate 2015 and the second flexible arc clamp 2016 to achieve the effect of upper clamping of the product.

[0034] A gearbox 204 is arranged above the outer end of the slotting frame 202, and a driving motor 205 is arranged at the outer end of the gearbox 204, a first gear 206 is arranged at the output end of the driving motor 205, a second gear 207 meshingly connected is arranged at the output end of the first gear 206, a third gear 208 is arranged at the output end of the second gear 207, and a fourth gear 209 is arranged at the output end of the third gear 208.

[0035] In an embodiment of the present invention, when upper clamping is required, the drive motor 205 at the outer end of the gearbox 204 is used to output power to drive the output end to operate, so that after the drive motor 205 outputs power to operate, the first gear 206, the second gear 207, the third gear 208, and the fourth gear 209 in the gearbox 204 are engaged and driven to operate, so that after the engaged transmission operation, the output end of the gearbox 204 is operated, and the screw rod group 2011 is operated.

[0036] A screw rod group 2011 is arranged on the inner side of the slotted frame 202, and the screw rod group 2011 is threadedly connected to the movable base 2012, a connecting plate 2013 is arranged at the bottom end of the movable base 2012, and a limiting sleeve 2014 is arranged on the lower outer side of the connecting plate 2013, a second arc plate 2015 is arranged on the inner side of the connecting plate 2013, and a second flexible arc clamp 2016 is arranged on the side of the second arc plate 2015.

[0037] In an embodiment of the present invention, when the screw rod group 2011 on the inner side of the slotted frame 202 performs output operation, the screw rod group 2011 drives the movable base 2012 to operate, so that the connecting plate 2013 cooperates with the displacement of the second arc plate 2015 and the second flexible arc clamp 2016 to achieve the effect of upper clamping of the product.

[0038] The compressed air detection mechanism 3 includes a lower bolt base 301, a lifting frame 302, a diaphragm 303, a top plate 304, an assembly cabin 305, a hydraulic cylinder 306, a hydraulic pull rod 307, a lifting base plate 308, a camera 309, a mechanical arm 3010, an electric articulated seat 3011, a mechanical clamp 3012, a connecting pressure rod 3013, a shock absorbing base 3014 and a pressure measuring plate 3015. The lower bolt base 301 is bolted to the top of the pad base plate 101 on all sides, a lifting frame 302 is arranged on the top side of the lower bolt base 301, and a diaphragm 303 is arranged on the inner side of the middle part of the lifting frame 302, a top plate 304 is arranged on the top of the lifting frame 302, and an assembly cabin 305 with bolt sleeves is arranged on the inner side of the top plate 304.

[0039] In the embodiment of the present invention, since the lower bolt base 301 has a bolt structure and the lifting frame 302 has a certain height, the lifting frame 302, the cross partition 303, and the top plate 304 cooperate with each other to effectively splice and install the various components of the hydraulic cylinder 306.

[0040] A hydraulic cylinder 306 is provided at the top of the assembly cabin 305 , and a hydraulic pull rod 307 is provided at the output end of the hydraulic cylinder 306 . A lifting base plate 308 is provided at the bottom end of the hydraulic pull rod 307 . Cameras 309 are provided below both ends of the lifting base plate 308 .

[0041] In an embodiment of the present invention, when inspection is required, the cameras 309 below the two ends of the lifting base plate 308 are used to perform real-time inspection and shooting, and the hydraulic cylinder 306 at the top of the assembly cabin 305 is started to output power to drive the output end to operate, so that the output operation of the hydraulic cylinder 306 can drive the hydraulic pull rod 307 at the output end of the hydraulic cylinder 306 to operate downward, so that the lifting base plate 308 can operate to a suitable height position.

[0042] A mechanical arm 3010 is arranged at the lower side of the lifting base plate 308, and an electric articulated seat 3011 with hinge transmission is arranged at the output end of the mechanical arm 3010, and a mechanical clamp 3012 is arranged at the output end of the electric articulated seat 3011, a connecting pressure rod 3013 is arranged at the lower middle part of the lifting base plate 308, and a shock-absorbing base 3014 is arranged at the bottom end of the connecting pressure rod 3013, and a pressure measuring plate 3015 is arranged below the shock-absorbing base 3014.

[0043] In an embodiment of the present invention, when the lifting base plate 308 moves to a suitable height position, the shock-absorbing base 3014 below the connecting pressure rod 3013 can cooperate with the pressure measuring plate 3015 to achieve the effect of pressing test on the product positioned by the supporting bottom fixing component 1 and the positioning clamping component 2, and in conjunction with the hinge transmission of the mechanical arm 3010 and the electric articulated seat 3011, the mechanical clamp 3012 can achieve precise clamping operation for the specific structure of the product, so that the product can effectively undergo slight deformation, thereby testing the air tightness of the product.

[0044] The working principle of the present invention is: when in use, the equipment is placed at the processing site through the pad base plate 101, so that the top of the pad base plate 101 is used to assemble the positioning clamping assembly 2 and the compressed air detection mechanism 3 through the bolt structure, and the drainage valve block 105 is closed, and the water inlet valve block 104 is opened to allow water to be input, and after the water is input, the water enters the water tank shell 103 to achieve an appropriate amount of filling. When it is necessary to place the detection product, the detection product is placed on the grid base plate 107 on the top side of the pad block 106, and the detection product is placed on the top side of the spherical pad 108 to achieve the effect of preventing the bottom from isolating the water body. When it is necessary When bottom positioning is required, the first flexible arc clamp 1013 on the side of the first arc plate 1011 is used to cooperate with each other to clamp the material, so that the product can be stably clamped under the elastic clamping action of the inner substrate 109, the limit telescopic rod 1010, the first arc plate 1011, and the spring rod 1012. When upper clamping is required, the drive motor 205 at the outer end of the gearbox 204 is used to output power to drive the output end to operate, so that after the drive motor 205 outputs power to operate, the first gear 206, the second gear 207, the third gear 208, and the fourth gear 209 in the gearbox 204 are meshed and driven to operate, so that the meshing After the transmission is running, the output end of the gearbox 204 is running, so that the screw group 2011 is running. When the screw group 2011 on the inner side of the slotted frame 202 is running, the screw group 2011 drives the mobile base 2012 to run, so that the connecting plate 2013 cooperates with the displacement of the second arc plate 2015 and the second flexible arc clamp 2016 to achieve the effect of upper clamping of the product. When inspection is required, the cameras 309 under the two ends of the lifting base plate 308 are used to perform real-time inspection and shooting, and the hydraulic cylinder 306 at the top of the assembly cabin 305 is started to output power to drive the output end to run, so that the output of the hydraulic cylinder 306 is running. The hydraulic pull rod 307 at the output end of the hydraulic cylinder 306 can be driven to move downward, so that the lifting base plate 308 can move to a suitable height. When the lifting base plate 308 moves to a suitable height, the shock-absorbing base 3014 under the connecting pressure rod 3013 can cooperate with the pressure measuring plate 3015 to achieve the effect of pressing test on the product positioned by the bearing bottom fixing component 1 and the positioning clamping component 2, and the hinge transmission of the mechanical arm 3010 and the electric articulated seat 3011 enables the mechanical clamp 3012 to achieve precise clamping operation for the specific structure of the product, so that the product can effectively undergo a slight deformation, thereby testing the air tightness of the product.

[0045] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0046] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A mechanical seal air tightness detection device, comprising a load-bearing and bottom-fixing assembly (1) and a compressed air detection mechanism (3), characterized in that: Positioning clamping assemblies (2) assembled with bolts are arranged at the upper two ends of the load-bearing and bottom-fixing assembly (1), and compressed air detection mechanisms (3) assembled with bolts are arranged at the tops of the four sides of the load-bearing and bottom-fixing assembly (1).

2. The air tightness detection device of a mechanical seal according to claim 1, characterized in that: The bearing and bottom fixing assembly (1) comprises a pad base plate (101), a bolt support seat (102), a water tank shell (103), a water inlet valve block (104), a water discharge valve block (105), a padding block (106), a grid base plate (107), a spherical pad (108), an inner base plate (109), a limit telescopic rod (1010), a first arc plate (1011), a spring rod (1012) and a first flexible arc clamp (1013); bolt support seats (102) assembled with bolts are arranged above both ends of the pad base plate (101), and a water tank shell (103) assembled with bolts is arranged on the top side of the bolt support seat (102); a water inlet valve block (104) mounted in a sleeve manner is arranged on one side above the water tank shell (103), and a water discharge valve block (105) mounted in a sleeve manner is arranged at the output end of the water tank shell (103).

3. The air tightness detection device of a mechanical seal according to claim 2, characterized in that: A padding block (106) is arranged on the inner bottom side of the water tank shell (103), and a grid base plate (107) is arranged on the top side of the padding block (106), and a spherical pad (108) is arranged above the grid base plate (107). An inner side of the water tank shell (103) is provided with an inner base plate (109) assembled with bolts, and a limited telescopic rod (1010) is arranged on the inner side of the inner base plate (109), a first arc plate (1011) is arranged at the inner end of the limited telescopic rod (1010), and a spring rod (1012) is arranged on the inner side of the middle part of the first arc plate (1011), and first flexible arc clamps (1013) are arranged on both end sides of the first arc plate (1011).

4. The air tightness detection device of a mechanical seal according to claim 2, characterized in that: The positioning clamping assembly (2) comprises an end base (201), a slotted frame (202), a handle (203), a gearbox (204), a driving motor (205), a first gear (206), a second gear (207), a third gear (208), a fourth gear (209), a fifth gear (2010), a screw rod group (2011), a movable base (2012), a connecting plate (2013), a limiting sleeve (2014), a second arc plate (2015) and a second flexible arc clamp (2016); the end base (201) is bolted to the upper sides of the two ends of the water tank shell (103); a slotted frame (202) is arranged on the inner side of the upper side of the end base (201); a handle (203) is arranged at the outer end of the slotted frame (202); and the fifth gear (2010) is arranged at the output end of the handle (203).

5. The air tightness detection device of a mechanical seal according to claim 4, characterized in that: A gearbox (204) is arranged above the outer end of the slotting frame (202), and a driving motor (205) is arranged at the outer end of the gearbox (204), a first gear (206) is arranged at the output end of the driving motor (205), a second gear (207) in meshing connection is arranged at the output end of the first gear (206), a third gear (208) is arranged at the output end of the second gear (207), and a fourth gear (209) is arranged at the output end of the third gear (208).

6. The air tightness detection device of a mechanical seal according to claim 4, characterized in that: A screw rod group (2011) is arranged on the inner side of the slotted frame (202), and the screw rod group (2011) is threadedly connected to a movable base (2012), a connecting plate (2013) is arranged at the bottom end of the movable base (2012), and a limiting sleeve (2014) is arranged on the lower outer side of the connecting plate (2013), a second arc plate (2015) is arranged on the inner side of the connecting plate (2013), and a second flexible arc clamp (2016) is arranged on the side of the second arc plate (2015).

7. The air tightness detection device of a mechanical seal according to claim 2, characterized in that: The compressed air detection mechanism (3) comprises a lower bolt base (301), a lifting frame (302), a diaphragm (303), a top plate (304), an assembly cabin (305), a hydraulic cylinder (306), a hydraulic pull rod (307), a lifting base plate (308), a camera (309), a mechanical arm (3010), an electric articulated seat (3011), a mechanical clamp (3012), a connecting rod (3013), a shock absorbing base (3014) and A pressure measuring plate (3015), the lower bolt base (301) is bolted to the top of the pad base (101) on all sides, a lifting frame (302) is arranged on the top side of the lower bolt base (301), and a cross partition (303) is arranged on the inner side of the middle part of the lifting frame (302), a top plate (304) is arranged on the top of the lifting frame (302), and a bolt-connected assembly cabin (305) is arranged on the inner side of the top plate (304).

8. The air tightness detection device of a mechanical seal according to claim 7, characterized in that: A hydraulic cylinder (306) is provided at the top of the assembly cabin (305), and a hydraulic pull rod (307) is provided at the output end of the hydraulic cylinder (306). A lifting base plate (308) is provided at the bottom end of the hydraulic pull rod (307), and cameras (309) are provided below both ends of the lifting base plate (308).

9. The air tightness detection device of a mechanical seal according to claim 7, characterized in that: A mechanical arm (3010) is arranged below the side of the lifting base plate (308), and an electric hinge seat (3011) with hinge transmission is arranged at the output end of the mechanical arm (3010), and a mechanical clamp (3012) is arranged at the output end of the electric hinge seat (3011), and a connecting pressure rod (3013) is arranged below the middle part of the lifting base plate (308), and a shock-absorbing base (3014) is arranged at the bottom end of the connecting pressure rod (3013), and a pressure measuring plate (3015) is arranged below the shock-absorbing base (3014).

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