Strength detection equipment for manufacturing air tightness detector

Abstract

The invention discloses strength detection equipment for air tightness detector manufacturing, and belongs to the technical field of air tightness detector production. The device comprises a transport table, the upper side of the transport table is fixedly connected with a support, and the lower side of the support is fixedly provided with a detection assembly used for detecting the strength of the air tightness detector. In the detection process of the air tightness detector, a double-shaft motor is started, a fourth connecting plate and a rotating cylinder are driven to rotate, then a first sensor, a second sensor and a third sensor are driven to move, the first sensor is used for detecting the surface of the air tightness detector, and whether the surface thickness of the air tightness detector is kept consistent or not is detected; the second sensor is used for detecting whether the surface of the air tightness detector is uneven, the third sensor is used for detecting the connecting effect between the air tightness detector and the air inlet pipe, the structure is simple, multi-directional different detection operations on the air tightness detector are completed, and the detection effect is good.

Description

Technical Field

[0001] The invention relates to the technical field of air tightness detector production, and in particular to a strength testing device for manufacturing air tightness detectors. Background Art

[0002] The sealing tester is also called an air tightness tester or a leakage tester. It is mainly used for sealing tests of packaging bags, bottles, tubes, cans, boxes, etc. in industries such as food, pharmaceuticals, medical devices, daily chemicals, automobiles, electronic components, stationery, and consumer electronics. In the production process of the air tightness tester, it is necessary to test the strength of the air tightness tester. At present, the direct pressure method is mainly used for detection. Compressed gas is rushed into the airtightness tester, and it is kept still. Then, whether the outer shell of the airtightness tester is deformed is observed, and the detection operation of the airtightness tester is completed. The overall operation is simple, but in the actual detection process, the detection is carried out by naked eye observation. The detection effect is general. For some minor deformations, the naked eye cannot detect them at all, resulting in poor accuracy of the detection result. At the same time, only the outer shell of the airtightness tester is tested, and the output end (that is, the intake pipe) of the airtightness tester is not tested. The stability between the intake pipe and the airtightness tester is not tested, and whether the threads on the outside of the intake pipe are always in good condition are not tested. In addition, during the detection process, if compressed gas is introduced, the airtightness tester is likely to be damaged, and in severe cases, it is likely to explode. The traditional detection device does not have a corresponding protective device, and there are certain safety hazards. Therefore, a strength detection equipment for manufacturing airtightness testers is provided. Summary of the invention

[0003] The purpose of the present invention is to solve the shortcomings in the prior art and to propose a strength testing device for manufacturing an airtightness tester.

[0004] The present invention adopts the following technical solutions: A strength testing device for manufacturing an airtightness tester comprises a transport platform, a bracket is fixedly connected to the upper side of the transport platform, a testing component for testing the strength of the airtightness tester is fixedly installed on the lower side of the bracket, the testing component comprises a pressure delivery pipe slidably connected to the lower side of the bracket, a rotating cylinder is rotatably connected to the lower side of the pressure delivery pipe, a connecting cylinder is rotatably connected to the lower side of the rotating cylinder, a fourth connecting plate is fixedly connected to the outer side of the rotating cylinder, a plurality of groups of moving rods are slidably connected to the fourth connecting plate, a plurality of groups of the moving rods are fixedly connected to the lower side of the first sensor, a plurality of groups of the moving rods are fixedly connected to the upper side of the moving plate, a second spring is fixedly connected between the moving plate and the fourth connecting plate, and a spring between the moving plate and the fourth connecting plate is fixedly connected to the moving plate. A second sensor is also fixedly connected in the middle, a fixing ring is fixedly connected to the inner side of the pressure delivery pipe, a hydraulic rod is fixedly connected to the lower side of the fixing ring, a moving ring is fixedly connected to the output end of the hydraulic rod, the moving ring and the inner wall of the pressure delivery pipe are slidably connected, a fifth connecting plate is fixedly connected to the inner side of the rotating cylinder, a third sensor is fixedly connected to the outer side of the fifth connecting plate, a double-axis motor is fixedly connected to the side wall of the pressure delivery pipe, a second rotating shaft is fixedly connected to the lower output end of the double-axis motor, a gear is fixedly connected to the outer side of the second rotating shaft, a transmission cylinder is fixedly connected to the outer side of the rotating cylinder, a gear ring is fixedly sleeved on the outer side of the transmission cylinder, the gear ring and the gear are meshed, and a plurality of display lights are fixedly connected to the upper side of the bracket.

[0005] Preferably, a knocking assembly for the air inlet pipe outside the air tightness detector is installed in the pressure delivery pipe, and the knocking assembly includes multiple groups of triangular plates evenly and fixedly connected to the pressure delivery pipe and the inner wall of the connecting cylinder, and the side wall of the fifth connecting plate is slidably connected with four round rods, and the four round rods are grouped in twos, and a limiting ring is fixedly sleeved on the outer side of each of the round rods, and a fourth spring is fixedly connected between the limiting ring and the fifth connecting plate, a knocking rod is slidably connected in the round rod, and a fifth spring is fixedly connected between the knocking rod and the round rod, and the outer sides of the knocking rods in the same group are fixedly connected to the same knocking plate.

[0006] Preferably, a through groove is formed on the side wall of the knocking plate, a slider is connected in the through groove for sliding up and down movement, a third spring is fixedly connected between the slider and the through groove, a sliding rod is connected in the slider for sliding movement, a sixth connecting plate is fixedly connected to one end of the sliding rod, a sixth spring is fixedly connected between the sixth connecting plate and the slider, a vertical rod is fixedly connected to the other end of the sliding rod, and a plurality of groups of plug rods are fixedly connected to the outer side of the vertical rod.

[0007] Preferably, the surfaces of the plurality of groups of insertion rods are arranged to be smooth.

[0008] Preferably, a protection component is installed on the outside of the pressure delivery pipe, and the protection component includes a protection cylinder that is sleeved on the outside of the pressure delivery pipe, two groups of first connecting plates are symmetrically fixedly connected on the inside of the protection cylinder, two groups of fixing plates are symmetrically fixedly connected on the outside of the pressure delivery pipe, a first spring is fixedly connected between the two groups of fixing plates and the first connecting plate, a third connecting plate is fixedly connected in the protection cylinder, a fixing frame is fixedly connected to the side wall of the third connecting plate, oblique grooves are opened on both sides of the fixing frame, and the same square rod is slidably connected in the two oblique grooves, a seventh connecting plate is fixedly connected to the outside of the square rod, a second connecting plate is fixedly connected to the lower side of the seventh connecting plate, the second connecting plate is located on the upper side of the movable plate, a conical rod is fixedly connected to the side wall of the seventh connecting plate, and a threaded rod is fixedly connected to the upper output end of the dual-axis motor.

[0009] Preferably, a positioning rod is slidably connected to the inner side of the protection tube, and the positioning rod is fixedly connected to the pressure delivery pipe.

[0010] Preferably, the ends of the triangular plate are arranged in the shape of circular arcs.

[0011] The beneficial effects of the present invention are: During the process of testing the airtightness detector, the dual-axis motor is started to drive the fourth connecting plate and the rotating cylinder to rotate, thereby driving the first sensor, the second sensor, and the third sensor to move. The first sensor is used to detect the surface of the airtightness detector to detect whether the surface thickness of the airtightness detector is consistent. The second sensor is used to detect whether there are uneven surfaces on the surface of the airtightness detector. The third sensor is used to detect the connection effect between the airtightness detector and the intake pipe. The structure is simple, and different multi-directional testing operations of the airtightness detector are completed, and the testing effect is good. During the detection process, the knocking plate is driven to move back and forth to form a simple knocking operation on the intake pipe. If the connection between the intake pipe and the air tightness detector is general, a gap will appear between the intake pipe and the air tightness detector under the action of continuous knocking, thereby triggering the third sensor, thereby completing the detection operation between the intake pipe and the air tightness detector; At the same time, the fourth sensor and the plunger are used to detect the thread groove on the outside of the intake pipe. If the indicator light is on for a short time, it means that there is a defect in the thread groove on the outside of the intake pipe. Moreover, during the detection process of the first sensor and the second sensor, if a bulge suddenly appears on the surface of the airtightness detector, it will not only cause the display light to be abnormal, but also drive the protective tube to move downward through a series of transmission mechanisms. The protective tube and the airtightness detector will offset each other to prevent the bulge on the surface of the airtightness detector from turning into an explosion and causing harm to nearby personnel, thereby forming a certain protective effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the structure of a strength testing device for manufacturing an air tightness tester proposed by the present invention; Figure 2 This is a schematic diagram of the connection between the bracket and the display light in a strength testing device for manufacturing an airtightness tester proposed by the present invention; Figure 3 This is a schematic diagram of the structure of a detection component in a strength detection device for manufacturing an airtightness detector proposed by the present invention; Figure 4 This is a bottom-up connection diagram of a detection component in a strength detection device for manufacturing an airtightness detector proposed by the present invention; Figure 5 This is a cross-sectional connection diagram of a pressure delivery pipe in a strength testing device for manufacturing an air tightness tester proposed by the present invention; Figure 6 This is a structural schematic diagram of the fifth connecting plate in a strength testing device for manufacturing an airtightness tester proposed by the present invention; Figure 7 This is a cross-sectional connection diagram of a striking plate in a strength testing device for manufacturing an airtightness tester proposed by the present invention; Figure 8 for Figure 7 A magnified view of the structure at center A; Fig. 9 This is a schematic diagram of the connection between the fixed frame and the seventh connecting plate in a strength testing device for manufacturing an airtightness tester proposed by the present invention; Fig.10 The present invention provides a cross-sectional connection diagram of a fixed frame in a strength testing device for manufacturing an airtightness tester.

[0013] In the figure: 1 transport platform, 2 connecting cylinder, 3 display light, 4 bracket, 5 protection cylinder, 6 pressure delivery pipe, 7 fixed plate, 8 first spring, 9 first connecting plate, 10 transmission cylinder, 11 gear ring, 12 second connecting plate, 13 gear, 14 dual-axis motor, 15 third connecting plate, 16 rotating cylinder, 17 fourth connecting plate, 18 first sensor, 19 fixed ring, 20 hydraulic rod, 21 moving ring, 22 fifth connecting plate, 23 triangular plate, 24 moving plate, 25 second sensor Device, 26 moving rod, 27 third sensor, 28 round rod, 29 limiting ring, 30 knocking plate, 31 through groove, 32 third spring, 33 vertical rod, 34 fourth sensor, 35 knocking rod, 36 fourth spring, 37 fifth spring, 38 slider, 39 plug rod, 40 sixth spring, 41 sixth connecting plate, 42 sliding rod, 43 threaded rod, 44 fixed frame, 45 positioning rod, 46 tapered rod, 47 oblique groove, 48 square rod, 49 second spring, 50 seventh connecting plate. DETAILED DESCRIPTION

[0014] See also Figure 1-Figure 10 , a strength testing device for manufacturing an airtightness detector comprises a transport platform 1, the transport platform 1 comprises two groups of transport plates, a plurality of groups of transport rods are rotatably connected between the two groups of transport plates, the outer sides of the plurality of transport rods are sleeved with the same transport belt, a transport motor is fixedly connected inside the transport plate, a first rotating shaft is fixedly connected to the output end of the transport motor, the first rotating shaft is connected to one of the transport rods through a belt, an airtightness detector is placed on the upper side of the transport belt, and a bracket 4 is fixedly connected to the upper side of the transport platform 1; the airtightness detector to be tested is placed on the transport belt, the transport motor is started, the transport motor drives the transport rod to rotate through the belt, and the transport rod drives the transport belt to move, thereby completing the moving operation of the airtightness detector, this is the prior art, no redundant description is made; like Figure 3 , Figure 4 , Figure 5 , Figure 6 A detection component for detecting the strength of the airtightness detector is fixedly installed on the lower side of the bracket 4. The detection component includes a pressure delivery pipe 6 slidably connected to the lower side of the bracket 4. The pressure delivery pipe 6 is opposite to the air inlet pipe of the airtightness detector. A booster pump is fixedly connected to the upper side of the pressure delivery pipe 6. The booster pump is fixedly connected to the bracket 4. The lower side of the pressure delivery pipe 6 is rotatably connected to a rotating cylinder 16. The lower side of the rotating cylinder 16 is rotatably connected to a connecting cylinder 2. The outer side of the rotating cylinder 16 is fixedly connected to a fourth connecting plate 17. The fourth connecting plate 17 is slidably connected to multiple groups of moving rods 26 up and down. The lower side of the multiple groups of moving rods 26 is fixedly connected to a first sensor 18. The upper side of the multiple groups of moving rods 26 is fixedly connected to a moving plate 24. A second spring 49 is fixedly connected between the moving plate 24 and the fourth connecting plate 17. A second sensor 18 is also fixedly connected between the moving plate 24 and the fourth connecting plate 17. The pressure delivery pipe 6 is provided with a fixed ring 19, a hydraulic rod 20 is fixedly connected to the lower side of the fixed ring 19, a movable ring 21 is fixedly connected to the output end of the hydraulic rod 20, and the movable ring 21 is slidably connected to the inner wall of the pressure delivery pipe 6. The inner side of the rotating cylinder 16 is fixedly connected to the fifth connecting plate 22, and the outer side of the fifth connecting plate 22 is fixedly connected to the third sensor 27. The side wall of the pressure delivery pipe 6 is fixedly connected to the double-axis motor 14, and the lower output end of the double-axis motor 14 is fixedly connected to the second rotating shaft, and the outer side of the second rotating shaft is fixedly connected to the gear 13. The outer side of the rotating cylinder 16 is fixedly connected to the transmission cylinder 10, and the transmission cylinder 10 is sleeved on the outer side of the pressure delivery pipe 6 and does not contact the pressure delivery pipe 6. The outer side of the transmission cylinder 10 is fixedly sleeved with a gear ring 11, and the gear ring 11 is meshed with the gear 13. The upper side of the bracket 4 is fixedly connected to multiple groups of display lights 3; First, the first sensor 18 is a temperature sensor, which refers to a sensor that can sense temperature and convert it into a usable output signal. The second sensor 25 is a tension sensor, which is a device that converts a physical signal into a measurable electrical signal output, and can detect the force exerted on the second spring 49. The third sensor 27 is a gas flow sensor, which refers to a sensor that can detect accumulated flow and instantaneous flow, and is a sensor that can detect the size of gas flow. The above three sensors are connected in series through wires and the control circuit of the display light 3, and each display light 3 corresponds to a sensor. When the air tightness detector moves to the lower side of the pressure delivery pipe 6, the pressure delivery pipe 6 is moved downward, and the pressure delivery pipe 6 drives the connection through the rotating cylinder 16. The cylinder 2 moves downward until the connecting cylinder 2 is sleeved on the outside of the air inlet pipe and abuts against the outer shell on the upper side of the air tightness detector, the booster pump is started, and a proper amount of compressed gas is introduced into the air tightness detector. After the connecting cylinder 2 and the surface of the air tightness detector are abutted, the dual-axis motor 14 is started, and the dual-axis motor 14 drives the transmission cylinder 10 to rotate through the gear 13 and the gear ring 11. The transmission cylinder 10 drives the fourth connecting plate 17, the rotating cylinder 16 and the fifth connecting plate 22 to rotate as a whole with the pressure delivery pipe 6 as the center. In this process, the first sensor 18 is always abutted against the surface of the air tightness detector, and the hydraulic rod 20 is started. The hydraulic rod 20 drives the moving ring 21 to move downward until the moving ring 21 and the air inlet pipe on the upper side of the air tightness detector are abutted. After the compressed gas is introduced, the internal pressure of the airtightness detector will increase. Under the condition that the volume remains unchanged, the increase in pressure will cause the temperature to rise, thus causing the surface temperature of the airtightness detector to rise. During the rotation of the fourth connecting plate 17, the fourth connecting plate 17 drives the first sensor 18 to rotate through the moving rod 26. The first sensor 18 detects the temperature change on the surface of the airtightness detector and starts the display light 3. The display light 3 lights up. During this process, if the brightness of the display light 3 does not change, it means that the surface quality of the airtightness detector is good and there are no obvious defects, that is, there is no thin or thick situation. At the same time, the first sensor 18 is always against the surface of the airtightness detector, and the second spring 49 is in a stretched state. The second sensor 2 5 is started, and the display light 3 connected to the second sensor 25 lights up. During the rotation of the fourth connecting plate 17, if the brightness of the display light 3 does not change, it means that there is no unevenness on the surface of the airtightness detector, and the surface quality of the airtightness detector is good. During the rotation of the fourth connecting plate 17, the third sensor 27 and the fifth connecting plate 22 rotate along with the rotating cylinder 16 and the fourth connecting plate 17. No compressed air is introduced into the closed space formed by the housing on the upper side of the airtightness detector, the air inlet pipe on the upper side of the airtightness detector, the connecting cylinder 2, the rotating cylinder 16, the moving ring 21 and the pressure delivery pipe 6. During the rotation of the rotating cylinder 16, the rotating cylinder 16 drives the third sensor 27 to rotate through the fifth connecting plate 22.The third sensor 27 is opposite to the air intake pipe. If the connection between the air intake pipe and the air tightness detector is poor and there is a leak, airflow will be formed due to the different pressures in the enclosed space and the air tightness detector. The airflow blows toward the third sensor 27, and the third sensor 27 sends a corresponding electrical signal. The display light 3 electrically connected to the third sensor 27 lights up, which reminds the corresponding staff, and finally completes the multi-directional and different detection operations of the air tightness detector, and the detection effect is good.

[0015] like Figure 5 , Figure 6 A knocking assembly for the air inlet pipe outside the air tightness detector is installed in the pressure delivery pipe 6. The knocking assembly includes multiple sets of triangular plates 23 that are evenly fixedly connected to the inner wall of the pressure delivery pipe 6 and the connecting tube 2. Four round rods 28 are slidably connected to the side wall of the fifth connecting plate 22. The four round rods 28 are grouped in pairs. The outer side of each round rod 28 is fixedly sleeved with a limiting ring 29. A fourth spring 36 is fixedly connected between the limiting ring 29 and the fifth connecting plate 22. A knocking rod 35 is slidably connected in the round rod 28. A fifth spring 37 is fixedly connected between the knocking rod 35 and the round rod 28. The outer side of the knocking rod 35 of the same group is fixedly connected to the same knocking plate 30. The end of the triangular plate 23 is set as an arc. In the process of rotating the fifth connecting plate 22 driven by the rotating cylinder 16, when the round rod 28 and the triangular plate 23 abut against each other, the round rod 28 will move relative to the fifth connecting plate 22, and the round rod 28 drives the knocking plate 30 to move toward the direction of the upper air intake pipe of the air tightness detector through the knocking rod 35, stretching the fourth spring 36. When the knocking plate 30 and the air intake pipe abut against each other, under the obstruction of the air intake pipe, the knocking plate 30 and the knocking rod 35 stop moving, compressing the fifth spring 37. The compressed fifth spring 37 will exert a force on the knocking rod 35, thereby forming a force on the air intake pipe, forming a simple knocking operation on the air intake pipe. If the connection effect between the air intake pipe and the air tightness detector is general, then under the action of continuous knocking, a gap will appear between the air intake pipe and the air tightness detector, thereby triggering the third sensor 27, and completing the detection operation between the air intake pipe and the air tightness detector.

[0016] like Figure 7 , Figure 8 A through slot 31 is formed on the side wall of the knocking plate 30, a slider 38 is connected to the through slot 31 for sliding up and down movement, a third spring 32 is fixedly connected between the slider 38 and the through slot 31, a slide rod 42 is connected to the slide rod 38 for sliding movement, a sixth connecting plate 41 is fixedly connected to one end of the slide rod 42, a sixth spring 40 is fixedly connected between the sixth connecting plate 41 and the slider 38, a vertical rod 33 is fixedly connected to the other end of the slide rod 42, a plurality of groups of plug rods 39 are fixedly connected to the outer side of the vertical rod 33, and the surfaces of the plurality of groups of plug rods 39 are smooth; The fourth sensor 34 is a pressure sensor. The pressure sensor is a device or apparatus that can sense pressure signals and convert pressure signals into usable output electrical signals according to certain rules. The fourth sensor 34 is also connected to one of the display lights 3 through a wire. Before the knocking plate 30 and the intake pipe are abutted against each other, the insertion rod 39 has been abutted against the intake pipe and entered into the threaded groove on the outside of the intake pipe. During the process of the knocking plate 30 and the intake pipe abutting against each other, under the action of the threaded groove, the insertion rod 39, the vertical rod 33 and the slider 38 will move upward or downward relative to the knocking plate 30 as a whole, thereby starting the fourth sensor 34. The fourth sensor 34 sends out a corresponding electrical signal, and the display light 3 gradually lights up. During the process of the display light 3 lighting up, if the display light 3 lights up for a short time, it means that there is a defect in the threaded groove on the outside of the intake pipe, thereby completing the detection operation of the threaded groove on the outside of the intake pipe.

[0017] like Figure 5 , Figure 6 , Fig. 9 , Fig.10 A protection assembly is installed on the outside of the pressure delivery pipe 6, and the protection assembly includes a protection tube 5 sleeved on the outside of the pressure delivery pipe 6, two groups of first connecting plates 9 are symmetrically fixedly connected on the inside of the protection tube 5, two groups of fixing plates 7 are symmetrically fixedly connected on the outside of the pressure delivery pipe 6, and a first spring 8 is fixedly connected between the two groups of fixing plates 7 and the first connecting plate 9, and a third connecting plate 15 is fixedly connected in the protection tube 5, and a fixing frame 44 is fixedly connected to the side wall of the third connecting plate 15, and inclined grooves 47 are opened on both sides of the fixing frame 44, and the same square rod 48 is slidably connected in the two inclined grooves 47, and a seventh connecting plate 50 is fixedly connected to the outside of the square rod 48, and the second connecting plate 12 is fixedly connected to the lower side of the seventh connecting plate 50, and the second connecting plate 12 is located on the upper side of the movable plate 24, and the side wall of the seventh connecting plate 50 is fixedly connected to the tapered rod 46, and the upper output end of the dual-axis motor 14 is fixedly connected to the threaded rod 43, and a positioning rod 45 is slidably connected to the inside of the protection tube 5, and the positioning rod 45 is fixedly connected to the pressure delivery pipe 6; During the detection process of the first sensor 18 and the second sensor 25, if a bulge suddenly appears on the surface of the airtightness detector, not only will the display light 3 be abnormal, but the first sensor 18, the moving rod 26 and the moving plate 24 will also move upward, the moving plate 24 and the second connecting plate 12 will abut against each other and drive the second connecting plate 12 to move upward, and the second connecting plate 12 will drive the square rod 48 to move upward through the seventh connecting plate 50. Under the restriction of the inclined groove 47, the seventh connecting plate 50 will move to the upper left direction (with a rotation angle of 0.1°). Fig.10), the seventh connecting plate 50 drives the tapered rod 46 to move in the upper left direction, and the tapered rod 46 enters into the thread groove outside the threaded rod 43. Since the dual-axis motor 14 is always in the starting state, the threaded rod 43 is always in the rotating state. When the tapered rod 46 enters into the thread groove outside the threaded rod 43, under the limiting effect of the positioning rod 45, the protection tube 5 can only move up and down relative to the pressure delivery pipe 6 and the positioning rod 45. Therefore, the rotating threaded rod 43 will drive the protection tube 5 to move downward, and the protection tube 5 and the air tightness detector will be offset to prevent the bulge on the surface of the air tightness detector from evolving into an explosion, causing harm to nearby personnel, thereby forming a certain protection effect.

[0018] In the present invention, the airtightness detector to be tested is placed on the transport belt, and the transport motor is started. The transport motor drives the transport rod to rotate through the belt, and the transport rod drives the transport belt to move until the airtightness detector is transported to the lower side of the pressure delivery pipe 6, and the pressure delivery pipe 6 is moved downward. The pressure delivery pipe 6 drives the connecting tube 2 to move downward through the rotating cylinder 16 until the connecting tube 2 is sleeved on the outside of the air inlet pipe and abuts against the outer shell on the upper side of the airtightness detector. The booster pump is started, and a proper amount of compressed gas is introduced into the airtightness detector. After the connecting tube 2 and the surface of the airtightness detector abut against each other, the dual-axis motor 14 is started, and the dual-axis motor 14 drives the transmission tube 10 to rotate through the gear 13 and the gear ring 11, and the transmission tube 10 drives the fourth connecting plate 1 7. The rotating cylinder 16 and the fifth connecting plate 22 rotate as a whole with the pressure delivery pipe 6 as the center. During this process, the first sensor 18 is always against the surface of the airtightness detector. The hydraulic rod 20 is started, and the hydraulic rod 20 drives the moving ring 21 to move downward until the moving ring 21 and the upper air inlet pipe of the airtightness detector are against each other. After the compressed gas is introduced into the airtightness detector, the internal pressure of the airtightness detector will increase. When the volume remains unchanged, the increase in pressure will cause the temperature to rise, so the surface temperature of the airtightness detector will increase. During the rotation of the fourth connecting plate 17, the fourth connecting plate 17 drives the first sensor 18 to rotate through the moving rod 26. The first sensor 18 detects the temperature change on the surface of the airtightness detector, and Start the display light 3, and the display light 3 lights up. During this process, if the brightness of the display light 3 does not change, it means that the surface quality of the airtightness detector is good, and there is no obvious defect, that is, there is no thin or thick situation. At the same time, the first sensor 18 is always against the surface of the airtightness detector, and the second spring 49 is in a stretched state. The second sensor 25 is started, and the display light 3 connected to the second sensor 25 lights up. During the rotation of the fourth connecting plate 17, if the brightness of the display light 3 does not change, it means that there is no unevenness on the surface of the airtightness detector, and the surface quality of the airtightness detector is good. During the rotation of the fourth connecting plate 17, the third sensor 27 and the fifth connecting plate 22 follow the rotating cylinder 16 and The fourth connecting plate 17 rotates, and no compressed air is introduced into the closed space formed by the housing of the air tightness detector, the air inlet pipe on the upper side of the air tightness detector, the connecting cylinder 2, the rotating cylinder 16, the moving ring 21 and the pressure delivery pipe 6. During the rotation of the rotating cylinder 16, the rotating cylinder 16 drives the third sensor 27 to rotate through the fifth connecting plate 22. The third sensor 27 is opposite to the air inlet pipe. If the connection between the air inlet pipe and the air tightness detector is poor and there is a leak, due to the different pressures in the closed space and the air tightness detector, an airflow is formed, and the airflow blows to the third sensor 27. The third sensor 27 sends a corresponding electrical signal, and the display light 3 electrically connected to the third sensor 27 lights up, thereby reminding the corresponding staff.Finally, the various testing operations on the air tightness detector were completed, and the testing results were good; When the rotating cylinder 16 drives the fifth connecting plate 22 to rotate, when the round rod 28 and the triangular plate 23 abut against each other, the round rod 28 will move relative to the fifth connecting plate 22, and the round rod 28 drives the knocking plate 30 to move toward the direction of the upper air intake pipe of the air tightness detector through the knocking rod 35, stretching the fourth spring 36. When the knocking plate 30 and the air intake pipe abut against each other, under the obstruction of the air intake pipe, the knocking plate 30 and the knocking rod 35 stop moving, compressing the fifth spring 37. The compressed fifth spring 37 will exert a force on the knocking rod 35, thereby forming a force on the air intake pipe, forming a simple knocking operation on the air intake pipe. If the connection effect between the air intake pipe and the air tightness detector is general, then under the action of continuous knocking, a gap will appear between the air intake pipe and the air tightness detector, thereby triggering the third sensor 27, and completing the detection operation between the air intake pipe and the air tightness detector. Before the striking plate 30 and the air intake pipe abut against each other, the insertion rod 39 has abutted against the air intake pipe and entered into the thread groove on the outside of the air intake pipe. During the abutment between the striking plate 30 and the air intake pipe, under the action of the thread groove, the insertion rod 39, the vertical rod 33 and the slider 38 will move upward or downward relative to the striking plate 30 as a whole, thereby starting the fourth sensor 34, and the fourth sensor 34 sends a corresponding electrical signal, and the display light 3 gradually lights up. During the lighting process of the display light 3, if the display light 3 lights up for a short time, it means that there is a defect in the thread groove on the outside of the air intake pipe, thereby completing the detection operation of the thread groove on the outside of the air intake pipe; During the detection process of the first sensor 18 and the second sensor 25, if a bulge suddenly appears on the surface of the airtightness detector, not only will the display light 3 be abnormal, but the first sensor 18, the moving rod 26 and the moving plate 24 will also move upward, the moving plate 24 and the second connecting plate 12 will abut against each other and drive the second connecting plate 12 to move upward, and the second connecting plate 12 will drive the square rod 48 to move upward through the seventh connecting plate 50. Under the restriction of the inclined groove 47, the seventh connecting plate 50 will move to the upper left direction (with a rotation angle of 0.1°). Fig.10 ), the seventh connecting plate 50 drives the tapered rod 46 to move in the upper left direction, and the tapered rod 46 enters into the thread groove outside the threaded rod 43. Since the dual-axis motor 14 is always in the starting state, the threaded rod 43 is always in the rotating state. When the tapered rod 46 enters into the thread groove outside the threaded rod 43, under the limiting effect of the positioning rod 45, the protection tube 5 can only move up and down relative to the pressure delivery pipe 6 and the positioning rod 45. Therefore, the rotating threaded rod 43 will drive the protection tube 5 to move downward, and the protection tube 5 and the air tightness detector will be offset to prevent the bulge on the surface of the air tightness detector from evolving into an explosion, causing harm to nearby personnel, thereby forming a certain protection effect.

Claims

1. A strength testing device for manufacturing airtightness testers, comprising a transport platform (1), characterized in that: The transport platform (1) is fixedly connected to a bracket (4) on the upper side, and a detection component for detecting the strength of an airtightness detector is fixedly installed on the lower side of the bracket (4). The detection component comprises a pressure delivery pipe (6) slidably connected to the lower side of the bracket (4), a rotating cylinder (16) is rotatably connected to the lower side of the pressure delivery pipe (6), and a connecting cylinder (2) is rotatably connected to the lower side of the rotating cylinder (16). A fourth connecting plate (17) is fixedly connected to the outer side of the rotating cylinder (16), and a plurality of groups of moving rods (26) are slidably connected to the fourth connecting plate (17) up and down, and a first sensor (18) is fixedly connected to the lower side of the plurality of groups of moving rods (26), and a moving plate (24) is fixedly connected to the upper side of the plurality of groups of moving rods (26), and a second spring (49) is fixedly connected between the moving plate (24) and the fourth connecting plate (17), and a second sensor (25) is also fixedly connected between the moving plate (24) and the fourth connecting plate (17). A fixed ring (19) is fixedly connected to the inner side of the pressure delivery pipe (6), a hydraulic rod (20) is fixedly connected to the lower side of the fixed ring (19), a moving ring (21) is fixedly connected to the output end of the hydraulic rod (20), the moving ring (21) and the inner wall of the pressure delivery pipe (6) are slidably connected, a fifth connecting plate (22) is fixedly connected to the inner side of the rotating cylinder (16), a third sensor (27) is fixedly connected to the outer side of the fifth connecting plate (22), a double-axis motor (14) is fixedly connected to the side wall of the pressure delivery pipe (6), a second rotating shaft is fixedly connected to the lower output end of the double-axis motor (14), a gear (13) is fixedly connected to the outer side of the second rotating shaft, a transmission cylinder (10) is fixedly connected to the outer side of the rotating cylinder (16), a gear ring (11) is fixedly sleeved on the outer side of the transmission cylinder (10), the gear ring (11) and the gear (13) are meshed, and a plurality of display lights (3) are fixedly connected to the upper side of the bracket (4).

2. The strength testing equipment for manufacturing airtightness tester according to claim 1, characterized in that: A knocking assembly for the air inlet pipe outside the air tightness detector is installed in the pressure delivery pipe (6), and the knocking assembly includes a plurality of sets of triangular plates (23) uniformly fixedly connected to the inner wall of the pressure delivery pipe (6) and the connecting tube (2), and the side wall of the fifth connecting plate (22) is slidably connected to four round rods (28), and the four round rods (28) are grouped in pairs, and the outer side of each round rod (28) is fixedly sleeved with a limit ring (29), and a fourth spring (36) is fixedly connected between the limit ring (29) and the fifth connecting plate (22), and a knocking rod (35) is slidably connected inside the round rod (28), and a fifth spring (37) is fixedly connected between the knocking rod (35) and the round rod (28), and the outer sides of the knocking rods (35) in the same group are fixedly connected to the same knocking plate (30).

3. The strength testing equipment for manufacturing airtightness tester according to claim 2, characterized in that: A through slot (31) is formed on the side wall of the striking plate (30), a slider (38) is slidably connected in the through slot (31) up and down, a third spring (32) is fixedly connected between the slider (38) and the through slot (31), a slide rod (42) is slidably connected in the slide rod (38), one end of the slide rod (42) is fixedly connected to a sixth connecting plate (41), a sixth spring (40) is fixedly connected between the sixth connecting plate (41) and the slide rod (38), the other end of the slide rod (42) is fixedly connected to a vertical rod (33), and a plurality of groups of insertion rods (39) are fixedly connected to the outer side of the vertical rod (33).

4. The strength testing equipment for manufacturing airtightness tester according to claim 3, characterized in that: The surfaces of the plurality of groups of insertion rods (39) are arranged to be smooth.

5. The strength testing equipment for manufacturing airtightness tester according to claim 4, characterized in that: A protection assembly is installed on the outside of the pressure delivery pipe (6), the protection assembly comprising a protection tube (5) sleeved on the outside of the pressure delivery pipe (6), two groups of first connection plates (9) are symmetrically fixedly connected to the inside of the protection tube (5), two groups of fixing plates (7) are symmetrically fixedly connected to the outside of the pressure delivery pipe (6), a first spring (8) is fixedly connected between the two groups of fixing plates (7) and the first connection plates (9), a third connection plate (15) is fixedly connected inside the protection tube (5), and a fixing frame (4) is fixedly connected to the side wall of the third connection plate (15). 4), oblique grooves (47) are provided on both sides of the fixed frame (44), a same square rod (48) is slidably connected in the two oblique grooves (47), a seventh connecting plate (50) is fixedly connected to the outer side of the square rod (48), a second connecting plate (12) is fixedly connected to the lower side of the seventh connecting plate (50), the second connecting plate (12) is located on the upper side of the movable plate (24), a conical rod (46) is fixedly connected to the side wall of the seventh connecting plate (50), and a threaded rod (43) is fixedly connected to the upper output end of the dual-axis motor (14).

6. The strength testing equipment for manufacturing airtightness tester according to claim 5, characterized in that: A positioning rod (45) is slidably connected to the inner side of the protection tube (5), and the positioning rod (45) is fixedly connected to the pressure delivery pipe (6).

7. The strength testing equipment for manufacturing airtightness tester according to claim 6, characterized in that: The end of the triangular plate (23) is arranged in the shape of an arc.

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