A pressure gauge sealing detection device

Abstract

The present invention relates to the field of parts detection technology, and in particular to a pressure gauge sealing detection device. The technical problem is: since there may be leakage problems at the connection between the pressure gauge and the air pressure tube, the sealing detection of the pressure gauge body is affected, resulting in inaccurate detection, and the existing sealing detection device is not convenient for simulating the occurrence of actual conditions, the detection is not sufficient, resulting in the difficulty of the detection result of the pressure gauge to be effective, resulting in poor detection effect. A pressure gauge sealing detection device includes: a base, with feet fixed to the bottom of all four sides; a water tank installed on the base, and glass plates are installed on both sides of the water tank. The staff can observe the inside of the water tank through the glass plate to know the specific leakage point of the pressure gauge, and then accurately detect the sealing of the pressure gauge, simulate the performance of the pressure gauge's tightness under uncertain air pressure, and can fully detect the sealing of the pressure gauge, significantly enhancing the detection effect.

Description

Technical Field

[0001] The invention relates to the technical field of parts detection, and in particular to a pressure gauge sealing detection device. Background Art

[0002] Pressure gauges are divided into mechanical and electronic types. They are precision instruments used to measure the pressure of fluids such as gas, liquid or steam. Fluid leakage can cause inaccurate measurements of the pressure gauge, especially when gas leaks are difficult to detect. In order to detect leakage of the gas pressure gauge itself, the staff will connect the pressure gauge to the air pressure pipe to increase the air pressure, and then immerse the pressure gauges in the test liquid for testing. The staff can observe the small bubbles produced by the gas to know the specific leakage point of the pressure gauge, thereby achieving the purpose of effective detection.

[0003] Since there may be leakage problems at the connection between the pressure gauge and the air pressure tube, which affects the sealing test of the pressure gauge body, the current sealing test device is not convenient for sealing the connection between the pressure gauge and the air pressure tube in advance when testing the pressure gauge, resulting in inaccurate detection. In addition, the pressure gauge may experience constant changes in air pressure and vibration of the body during actual work, and the existing sealing test device is not convenient for simulating the actual situation. The test is not sufficient, resulting in the test results of the pressure gauge being difficult to be effective, resulting in poor detection effect. Summary of the invention

[0004] In order to overcome the above-mentioned shortcomings, the present invention provides a pressure gauge sealing detection device, which can seal the connection between the pressure gauge and the air pressure tube before detection to make the detection of the main body more accurate and can fully simulate the occurrence of actual conditions to make the detection of the pressure gauge more effective, thereby enhancing the detection effect.

[0005] The technical solution is as follows: A pressure gauge sealing detection device, comprising:

[0006] The base has legs fixedly connected to the bottom all around;

[0007] A water tank mounted on a base with glass panels mounted on both sides of the tank;

[0008] Two support plates respectively fixed to both sides of the top of the water tank;

[0009] The immersion mechanism is arranged on the support plate, the immersion mechanism is provided with a detection device, and the detection device is installed with a pressure gauge;

[0010] The voltage transformation mechanism is arranged on the water immersion mechanism;

[0011] The sealing mechanism is arranged on the supporting plate.

[0012] Preferably, the immersion mechanism includes: a motor installed on one of the support plates and away from the other support plate; a transmission shaft fixed to the motor output shaft and rotatably connected between the two support plates; two guide plates respectively fixed to both sides of the transmission shaft; an outer frame slidably connected between the two guide plates; four guide rods respectively fixed to the bottom of the four sides of the outer frame, and the four guide rods are respectively vertically slidably connected to the two support plates.

[0013] Preferably, the detection equipment comprises: an air pressure tube fixedly connected to the bottom of the outer frame; an air pump installed on the top of the air pressure tube, the air outlet of the air pump is connected to the inside of the air pressure tube; and three threaded sleeves are connected to the bottom of the air pressure tube.

[0014] Preferably, each threaded sleeve is connected to a pressure gauge via threads.

[0015] Preferably, the threaded sleeve is made of soft material.

[0016] Preferably, the voltage-changing mechanism includes: an arc-shaped bevel rack fixedly connected to the transmission shaft; a spatial cam rotatably connected to the outer frame; a bevel gear fixedly connected to the top of the spatial cam; two piston cylinders respectively connected to the two sides of the top of the air pressure tube; two piston rods respectively slidably connected in the two piston cylinders; two sliders respectively fixedly connected to the top of the two piston rods, and the two sliders are respectively slidably connected to the two sides of the spatial cam.

[0017] Preferably, the sealing mechanism includes: four extrusion slide rails, which are symmetrically fixed to the sides of the two support plates close to each other in pairs; two limit frames fixed to the bottom of the air pressure tube; two sliding rods are slidably connected between the two limit frames; three extrusion blocks are fixed to the sides of the two sliding rods close to each other, for a total of six, the three extrusion blocks on the same sliding rod are a group, and the two groups of extrusion blocks are respectively located on both sides of the three threaded sleeves.

[0018] Preferably, the inner side surface of the extrusion block is provided with a plurality of strip-shaped protrusions.

[0019] Preferably, a vibration mechanism is also included for vibrating the pressure gauge during detection, and is arranged on the air pressure tube, wherein the vibration mechanism comprises: two limit blocks fixedly connected to the bottom of the inner wall of the air pressure tube; a sliding frame laterally slidably connected between the two limit blocks, and wave grooves are provided on both sides of the sliding frame; three vibration columns fixedly connected to the bottom of the sliding frame, and the three vibration columns are respectively located in the inspection ports of the three pressure gauges; and two extrusion rods respectively fixedly connected to the bottom of the two piston rods, and the bottoms of the two extrusion rods are respectively slidably connected to the two wave grooves.

[0020] Preferably, the vibration column is made of rubber.

[0021] Beneficial effects of the present invention: 1. The present invention drives the guide plate and the arc-shaped bevel rack to rotate together through a motor, so that the outer frame and the detection equipment move downward together, thereby keeping the pressure gauge in a submerged state. The gas leaked from the pressure gauge will continue to form small bubbles in the detection liquid. The staff can observe the inside of the water tank through the glass plate to know the specific leakage point of the pressure gauge, and then accurately detect the sealing of the pressure gauge; after the arc-shaped bevel rack rotates a certain angle, it drives the space cam to rotate through the bevel gear. The rotation of the space cam causes the piston rod to reciprocate up and down through the slider, repeatedly compressing and relaxing the gas in the air pressure tube, thereby simulating the performance of the pressure gauge's airtightness under uncertain air pressure, which can fully detect the sealing of the pressure gauge and significantly enhance the detection effect.

[0022] 2. When the outer frame moves downward, the sliding rod will move downward, and the four extrusion rails will squeeze the two ends of the two sliding rods respectively, so that the two sliding rods move towards each other. The movement of the sliding rod drives the extrusion block to move. The movement of the six extrusion blocks will squeeze the two sides of the three threaded sleeves respectively. Then, when the pressure gauge is immersed in the test liquid, the extrusion rail will continue to squeeze the sliding rod so that the extrusion block will continue to squeeze the threaded sleeve, so that the threaded sleeve and the pressure gauge will continue to be in close contact during the leakage point detection, thereby preventing leakage between the pressure gauge and the threaded sleeve from causing misjudgment of the sealing problem, and making the air tightness detection of the pressure gauge more accurate, thereby further enhancing the detection effect.

[0023] 3. During the testing process, the up and down reciprocating movement of the piston rod will drive the extrusion rod to move up and down, and the up and down reciprocating movement of the extrusion rod will squeeze the wave groove to make the sliding frame move back and forth laterally, and the lateral reciprocating movement of the sliding frame will drive the three vibration columns to move back and forth laterally together. The lateral reciprocating movement of the three vibration columns will repeatedly hit the three pressure gauges respectively, causing the pressure gauges to vibrate during the test, thereby simulating the actual situation. The performance of the sealing of the pressure gauge under vibration, and then more fully testing the sealing of the pressure gauge, so that the test results of the pressure gauge are more effective. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0025] Figure 2 It is a partial three-dimensional structural schematic diagram of the present invention.

[0026] Figure 3 It is a partial three-dimensional structural schematic diagram of the base and water tank of the present invention.

[0027] Figure 4 It is a schematic diagram of the three-dimensional structure of the immersion mechanism and the arc-shaped tapered rack of the present invention.

[0028] Figure 5 It is a schematic diagram of a partially disassembled three-dimensional structure of the immersion mechanism of the present invention.

[0029] Figure 6 It is a cross-sectional three-dimensional structural schematic diagram of the outer frame, detection equipment and transformer mechanism of the present invention.

[0030] Figure 7 It is a partial cross-sectional three-dimensional structural schematic diagram of the present invention.

[0031] Figure 8 It is a schematic diagram of the cross-sectional three-dimensional structure of the detection device, pressure gauge and vibration mechanism of the present invention.

[0032] Fig. 9 It is a schematic diagram of the partially disassembled three-dimensional structure of the pressure gauge and the threaded sleeve of the present invention.

[0033] Fig.10 It is a schematic diagram of a partially disassembled three-dimensional structure of the transformer mechanism of the present invention.

[0034] Fig.11 It is a partial three-dimensional structural schematic diagram of the sealing mechanism of the present invention.

[0035] Fig.12 It is a schematic diagram of the disassembled three-dimensional structure of the sealing mechanism of the present invention.

[0036] Fig.13 It is a partial three-dimensional structural schematic diagram of the vibration mechanism of the present invention.

[0037] Fig.14 It is a schematic diagram of a partially disassembled three-dimensional structure of the vibration mechanism of the present invention.

[0038] Explanation of the accompanying drawings: 1_base, 11_foot, 2_water tank, 21_glass plate, 3_support plate, 41_motor, 42_transmission shaft, 43_guide plate, 44_outer frame, 45_guide rod, 51_air pressure tube, 52_air pump, 53_threaded sleeve, 0_pressure gauge, 61_arc bevel rack, 62_space cam, 63_bevel gear, 64_piston cylinder, 65_piston rod, 66_slider, 71_extrusion slide rail, 72_limiting frame, 73_sliding rod, 74_extrusion block, 81_limiting block, 82_sliding frame, 821_wave groove, 83_vibration column, 84_extrusion rod. DETAILED DESCRIPTION

[0039] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0040] Embodiment 1: A pressure gauge sealing detection device, such as Figure 1-Figure 12 As shown, including:

[0041] The base 1 has legs 11 connected to the bottom by bolts.

[0042] A water tank 2 is installed on the base 1 and filled with a detection liquid. Glass plates 21 are installed on both sides of the water tank 2. The glass plates 21 are used to facilitate workers to detect leakage points by observing bubbles;

[0043] Two support plates 3 respectively welded to both sides of the top of the water tank 2;

[0044] An immersion mechanism is provided on the support plate 3, a detection device is provided on the immersion mechanism, a pressure gauge 0 is installed on the detection device, the immersion mechanism is used to immerse the pressure gauge 0 in the liquid, and the detection device is used to apply pressure to the pressure gauge 0;

[0045] The pressure changing mechanism is used to continuously change the pressure applied to the pressure gauge 0 and is arranged on the immersion mechanism;

[0046] The sealing mechanism is used to seal the connection between the pressure gauge 0 and the detection equipment and is arranged on the support plate 3.

[0047] The immersion mechanism includes: a motor 41 installed on one of the support plates 3 and away from the other support plate 3; a transmission shaft 42 connected to the output shaft of the motor 41 through a coupling and rotatably connected between the two support plates 3; two guide plates 43 connected to both sides of the transmission shaft 42 through flat keys, and the two guide plates 43 are symmetrically arranged; an outer frame 44 slidably connected between the two guide plates 43; four guide rods 45 respectively welded to the bottom of the four sides of the outer frame 44, and the four guide rods 45 are respectively vertically slidably connected to the two support plates 3.

[0048] The detection equipment includes: an air pressure tube 51 welded to the bottom of the outer frame 44; an air pump 52 installed on the top of the air pressure tube 51, the air outlet of the air pump 52 is connected to the inside of the air pressure tube 51, and is used to pump external gas into the air pressure tube 51 to generate a strong air pressure, so as to trigger the pointer in the pressure gauge 0 to rotate; three threaded sleeves 53 are connected to the bottom of the air pressure tube 51 for connecting the pressure gauge 0.

[0049] A pressure gauge 0 is connected to each threaded sleeve 53 via threads, and the pressure gauge 0 is connected to the inside of the air pressure pipe 51 via the threaded sleeve 53 .

[0050] The threaded sleeve 53 is made of a soft material and can be more tightly connected to the pressure gauge 0.

[0051] The voltage-changing mechanism includes: an arcuate bevel rack 61 connected to the transmission shaft 42 via a flat key; a spatial cam 62 rotatably connected to the outer frame 44; a bevel gear 63 connected to the top of the spatial cam 62 via a keyway, located outside the outer frame 44 and engageable with the arcuate bevel rack 61; two piston cylinders 64 respectively connected to the two sides of the top of the air pressure tube 51; two piston rods 65 respectively slidably connected to the two piston cylinders 64, for compressing and relaxing the air pressure in the air pressure tube 51, and the upwardly extending parts of the two piston rods 65 are located outside the piston cylinder 64; two sliders 66 respectively welded to the top of the two piston rods 65, and the two sliders 66 are respectively slidably connected to the two sides of the spatial cam 62.

[0052] Initially, the water tank 2 is filled with the testing liquid and is transparent, and the staff can clearly observe the internal situation of the water tank 2 through the glass plate 21. When the pressure gauge 0 needs to be tested, the staff first installs the three pressure gauges 0 to be tested on the three threaded sleeves 53 respectively through threads, so that the three pressure gauges 0 are inverted and connected to the air pressure tube 51, and at the same time controls the air pump 52 to pump a certain amount of gas into the air pressure tube 51 to increase a certain amount of air pressure, thereby triggering the pointer of the pressure gauge 0 to rotate a certain angle accordingly. The staff can observe the changes in the pointer of the pressure gauge 0 to determine whether the pressure gauge 0 has a leakage problem; if the pressure gauge 0 has a leakage problem, the staff can then start the motor 41, and the motor 41 The output shaft rotates through the transmission shaft 42 to drive the two guide plates 43 to rotate. The rotation of the guide plates 43 will first squeeze the outer frame 44 and the guide rods 45 to move downward together. The downward movement of the outer frame 44 will drive the detection device and the pressure gauge 0 to move downward together. The pressure gauge 0 will be completely immersed in the detection liquid when it moves downward. Then the guide plates 43 continue to rotate to keep the outer frame 44, the detection device and the pressure gauge 0 at a horizontal height, thereby keeping the pressure gauge 0 in a water-immersed state. The gas leaked from the pressure gauge 0 will continue to form small bubbles in the detection liquid. At this time, the staff can observe the inside of the water tank 2 through the glass plate 21 to know the specific leakage point of the pressure gauge 0, and then accurately detect the sealing of the pressure gauge 0.

[0053] When detecting the leakage point, the transmission shaft 42 rotates and drives the arc-shaped bevel rack 61 to rotate together. After the pressure gauge 0 is completely immersed in the detection liquid, the arc-shaped bevel rack 61 continues to rotate and meshes with the bevel gear 63. Then the arc-shaped bevel rack 61 rotates and drives the bevel gear 63 to rotate, thereby driving the space cam 62 to rotate. The rotation of the space cam 62 first squeezes the two sliders 66 to make the two piston rods 65 move downward together. Then the space cam 62 continues to rotate and pulls the two sliders 66 to make the two piston rods 65 reset upward together. , repeating this, the rotation of the space cam 62 will cause the two piston rods 65 to move up and down together through the two sliders 66. Since the piston cylinder 64 is connected to the air pressure tube 51, the two piston rods 65 will squeeze the gas in the air pressure tube 51 and the piston cylinder 64 when moving downward to further increase the air pressure. In this way, the up and down reciprocating movement of the two piston rods 65 will repeatedly compress and relax the gas in the air pressure tube 51, thereby simulating the performance of the airtightness of the pressure gauge 0 under uncertain air pressure, which can fully detect the sealing of the pressure gauge 0 and significantly enhance the detection effect;

[0054] The output shaft of the motor 41 continues to rotate, driving the guide plate 43 and the arcuate bevel rack 61 to rotate together through the transmission shaft 42 for reset. The arcuate bevel rack 61 continues to rotate and reset and will disengage from the bevel gear 63. The space cam 62 will rotate to the initial state and then stop rotating, and then the two piston rods 65 will be reset to the initial position through the slider 66. The reset of the guide plate 43 will squeeze the outer frame 44 upward to reset to the initial position, and then drive the detection equipment and the pressure gauge 0 to reset to the initial position together. At the same time, the staff turns off the motor 41, and then the detection of the pressure gauge 0 is completed. Then the staff can twist the three pressure gauges 0 off the three threaded sleeves 53 respectively.

[0055] Embodiment 2: Based on embodiment 1, Figure 1 , Figure 2 , Fig.11 and Fig.12 As shown, the sealing mechanism includes: four extrusion slide rails 71, which are symmetrically welded to the sides of the two support plates 3 that are close to each other in pairs, the two extrusion slide rails 71 on the same support plate 3 form a group, the two extrusion slide rails 71 in the same group are symmetrically arranged, and the two groups of extrusion slide rails 71 are symmetrically arranged; two limit frames 72 welded to the bottom of the air pressure tube 51, the two limit frames 72 are cross-arranged with the three threaded sleeves 53; two sliding rods 73 are slidably connected between the two limit frames 72, and the two sliding rods 73 are respectively perpendicular to the two limit frames 72; three extrusion blocks 74 are bolted to the sides of the two sliding rods 73 that are close to each other, a total of six, for extruding the threaded sleeves 53, the three extrusion blocks 74 on the same sliding rod 73 form a group, the two groups of extrusion blocks 74 are symmetrically arranged, and the two groups of extrusion blocks 74 are respectively located on both sides of the three threaded sleeves 53.

[0056] The inner side surface of the extrusion block 74 is provided with a plurality of strip-shaped protrusions, which are used to enable the extrusion block 74 to fully extrude the threaded sleeve 53 on the basis of fitting the threads of the threaded sleeve 53 .

[0057] When the outer frame 44 moves downward, the two sliding rods 73 will be driven downward by the two limit frames 72. In the process of the sliding rods 73 moving downward, the four extrusion slide rails 71 will respectively squeeze the two ends of the two sliding rods 73, thereby causing the two sliding rods 73 to move towards each other. The movement of the sliding rods 73 will drive the extrusion blocks 74 to move. The movement of the six extrusion blocks 74 will respectively squeeze the two sides of the three threaded sleeves 53. Subsequently, when the pressure gauge 0 is immersed in the detection liquid, the extrusion slide rail 71 continues to squeeze the sliding rod 73 so that the extrusion block 74 continues to squeeze the threaded sleeve 53, thereby ensuring that the threaded sleeve 53 and the pressure gauge 0 are in close contact during the leakage point detection, thereby preventing leakage between the pressure gauge 0 and the threaded sleeve 53 and causing misjudgment of the sealing problem, thereby making the airtightness detection of the pressure gauge 0 more accurate, thereby further enhancing the detection effect; the outer frame 44 is reset so that the sealing mechanism (except the extrusion slide rail 71) is reset to the initial state, thereby causing the extrusion block 74 to no longer squeeze the threaded sleeve 53.

[0058] Embodiment 3: Based on embodiment 2, Figure 7-Figure 14 As shown, a vibration mechanism is also included, which is used to vibrate the pressure gauge 0 during detection and is arranged on the air pressure tube 51. The vibration mechanism includes: two limit blocks 81 welded to the bottom of the inner wall of the air pressure tube 51; a sliding frame 82 connected laterally between the two limit blocks 81 in a sliding manner, and wave grooves 821 are opened on both sides of the sliding frame 82, and the two wave grooves 821 are arranged in the same direction; three vibration columns 83 connected to the bottom of the sliding frame 82 by bolts, and the three vibration columns 83 are respectively located in the inspection ports of the three pressure gauges 0, and are used to vibrate the pressure gauge 0; two extrusion rods 84 respectively connected to the bottom of the two piston rods 65 by bolts, and the bottoms of the two extrusion rods 84 are respectively slidably connected to the two wave grooves 821.

[0059] The vibration column 83 is made of rubber, which can effectively prevent the pressure gauge 0 from being damaged during vibration.

[0060] During the detection process, the up and down reciprocating movement of the piston rod 65 will drive the extrusion rod 84 to move up and down, and the up and down reciprocating movement of the extrusion rod 84 will squeeze the wave groove 821 to make the sliding frame 82 move back and forth laterally, and the lateral reciprocating movement of the sliding frame 82 will drive the three vibration columns 83 to move back and forth laterally together, and the lateral reciprocating movement of the three vibration columns 83 will repeatedly knock on the three pressure gauges 0 respectively, causing the pressure gauge 0 to vibrate during the detection, thereby simulating the actual situation. The sealing performance of the pressure gauge 0 under vibration, and then more fully testing the sealing of the pressure gauge 0, so that the detection result of the pressure gauge 0 is more effective.

[0061] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the spirit of the present invention.

Claims

1. A pressure gauge sealing detection device, characterized in that: Included are: A base (1) having legs (11) fixedly connected to the bottom of the base; A water tank (2) mounted on the base (1), wherein glass plates (21) are mounted on both sides of the water tank (2); Two support plates (3) respectively fixed to two sides of the top of the water tank (2); An immersion mechanism is disposed on the support plate (3), the immersion mechanism is provided with a detection device, and a pressure gauge (0) is installed on the detection device; The voltage transformation mechanism is arranged on the water immersion mechanism; A sealing mechanism, arranged on the support plate (3); The immersion mechanism comprises: a motor (41) mounted on one of the support plates (3) and away from the other support plate (3); a transmission shaft (42) fixedly connected to the output shaft of the motor (41) and rotatably connected between the two support plates (3); two guide plates (43) respectively fixedly connected to both sides of the transmission shaft (42); an outer frame (44) slidably connected between the two guide plates (43); four guide rods (45) respectively fixedly connected to the bottom of the four sides of the outer frame (44), the four guide rods (45) respectively being vertically slidably connected to the two support plates (3); The detection device comprises: an air pressure tube (51) fixedly connected to the bottom of the outer frame (44); an air pump (52) installed on the top of the air pressure tube (51), the air outlet of the air pump (52) being connected to the inside of the air pressure tube (51); and three threaded sleeves (53) being connected to the bottom of the air pressure tube (51); The voltage-changing mechanism comprises: an arc-shaped bevel gear rack (61) fixedly connected to a transmission shaft (42); a space cam (62) rotatably connected to an outer frame (44); a bevel gear (63) fixedly connected to the top of the space cam (62); two piston cylinders (64) respectively connected to the top sides of an air pressure tube (51); two piston rods (65) respectively slidably connected to the two piston cylinders (64); and two sliders (66) respectively fixedly connected to the tops of the two piston rods (65), the two sliders (66) respectively being slidably connected to the two sides of the space cam (62).

2. A pressure gauge sealing detection device according to claim 1, characterized in that: Each threaded sleeve (53) is connected to a pressure gauge (0) via a thread.

3. A pressure gauge sealing detection device according to claim 2, characterized in that: The threaded sleeve (53) is made of soft material.

4. A pressure gauge sealing detection device according to claim 2, characterized in that: The sealing mechanism comprises: four extrusion slide rails (71) fixedly connected to the sides of the two support plates (3) close to each other in a symmetrical manner; two limit frames (72) fixedly connected to the bottom of the air pressure tube (51); two sliding rods (73) slidably connected between the two limit frames (72); three extrusion blocks (74) are fixedly connected to the sides of the two sliding rods (73) close to each other, a total of six, the three extrusion blocks (74) on the same sliding rod (73) form a group, and the two groups of extrusion blocks (74) are respectively located on both sides of the three threaded sleeves (53).

5. A pressure gauge sealing detection device according to claim 4, characterized in that: The inner side surface of the extrusion block (74) is provided with a plurality of strip-shaped protrusions.

6. A pressure gauge sealing detection device according to claim 4, characterized in that: It also includes a vibration mechanism for vibrating the pressure gauge (0) during detection, and is arranged on the air pressure tube (51), the vibration mechanism comprising: two limit blocks (81) fixedly connected to the bottom of the inner wall of the air pressure tube (51); a sliding frame (82) connected between the two limit blocks (81) in a transverse sliding manner, and wave grooves (821) are formed on both sides of the sliding frame (82); three vibration columns (83) fixedly connected to the bottom of the sliding frame (82), and the three vibration columns (83) are respectively located in the inspection ports of the three pressure gauges (0); and two extrusion rods (84) respectively fixedly connected to the bottoms of the two piston rods (65), and the bottoms of the two extrusion rods (84) are respectively connected in a sliding manner to the two wave grooves (821).

7. A pressure gauge sealing detection device according to claim 6, characterized in that: The vibration column (83) is made of rubber.

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