Air pressure type explosion-proof cover plate testing device with multi-point bombardment simulation function

Abstract

The invention discloses an air pressure type explosion-proof cover plate testing device with a multi-point bombardment simulation function, and relates to the technical field of cover plate testing devices. Comprising a shell, a collecting mechanism and a positioning mechanism, a sealing plate is in threaded connection with the interior of the shell, a cover plate is arranged below the sealing plate, a vortex plate is installed below the cover plate, an adjusting motor, an adjusting gear and a pressurizing cylinder are installed in the vortex plate, and a cylinder body and a reciprocating plate are installed below the vortex plate; an adjusting wheel and a driving motor are mounted on one side of the vortex plate, and a control panel is mounted on the shell; the adjusting motor and the adjusting gear are matched to drive the pressurizing cylinder to move, the pressurizing cylinder pressurizes the cover plate, the cylinder body and the driving motor are matched to achieve pressurization of the pressurizing cylinder, the adjusting wheel adjusts the stroke of the reciprocating plate, the collecting mechanism collects and releases electric wires of the adjusting motor, and the positioning mechanism positions the cover plate.

Description

Technical Field

[0001] The invention relates to the technical field of cover plate testing devices, in particular to a pneumatic explosion-proof cover plate testing device with a multi-point bombardment simulation function. Background Art

[0002] The explosion-proof cover of a capacitor is a safety device used to reduce safety hazards when a capacitor fails. The strength of the capacitor cover needs to meet certain requirements. The existing detection of the capacitor cover mainly adopts the pressurization method, which is to pressurize the entire capacitor cover for detection. This processing method makes the pressure of the pressurized air evenly distributed in various areas of the capacitor cover. It is impossible to determine whether different areas of the capacitor cover meet the use requirements. Therefore, the existing capacitor cover test device has the following problems: (1) It is impossible to detect different areas of the capacitor cover, and (2) manual observation is required after the test to obtain the test results, which is time-consuming and laborious. Summary of the invention

[0003] The object of the present invention is to provide a pneumatic explosion-proof cover plate testing device with a multi-point bombardment simulation function to solve the problems raised in the above-mentioned background technology.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions: comprising a housing, a sealing plate is connected to the inner thread of the housing, a cover plate is arranged below the sealing plate, a vortex plate is installed below the cover plate, an adjustment motor, an adjustment gear and a pressurizing cylinder are installed in the vortex plate, a cylinder body and a reciprocating plate are installed below the vortex plate, an adjustment wheel and a driving motor are installed on one side of the vortex plate, and a control panel is installed on the housing; The adjusting motor and the adjusting gear cooperate to drive the pressurizing cylinder to move, the pressurizing cylinder performs a pressure test on the cover plate, the cylinder body and the driving motor cooperate to realize the pressurization of the pressurizing cylinder, and the adjusting wheel adjusts the stroke of the reciprocating plate.

[0005] The vortex plate is installed on the outer shell, and a plane thread structure is provided on the vortex plate. A tooth structure is provided on the inner side of the plane thread structure, and the tooth structure is arranged along the inner side of the plane thread structure. A casing is provided on the outside of the regulating motor, and the casing is slidably connected with the vortex plate through a rolling bearing. The vortex plate limits the sliding of the casing. The regulating gear is installed on the output shaft of the regulating motor, and the pressurizing cylinder is installed on the output shaft of the regulating motor above the regulating gear through a bearing, and the tooth structure is meshed with the regulating gear.

[0006] A circular plate is arranged on the pressurizing cylinder, and the circular plate slides on the planar thread structure. The circular plate is limited by the planar thread structure. A metal plate and a plurality of metal rings are arranged on the opposite sides of the circular plate and the planar thread structure, respectively. The metal plate and the metal ring are in contact with each other, and the metal ring is arranged along the planar thread structure. The metal plate and the metal ring are both electrically connected to the control system.

[0007] The driving motor is installed on the outer shell, and the output shaft of the driving motor is coaxially installed with a driving rod, a first connecting rod is installed on the driving rod, one side of the first connecting rod is rotatably connected with the second connecting rod, one side of the second connecting rod is installed with a connecting rod, one side of the connecting rod is installed with a swing rod, an adjusting rod passes through the connecting rod and the driving rod, the adjusting rod is rotatably connected to the connecting rod through a bearing, and the adjusting rod and the driving rod are threadedly connected.

[0008] The cylinder body is mounted on the outer shell, the interior of the cylinder body is hollow, a reciprocating plate is slidably mounted in the cylinder body, the reciprocating plate and the cylinder body form a sliding sealing connection, and the reciprocating plate and the swing rod are rotationally connected via a ball bearing.

[0009] The cylinder body is provided with an air inlet and an air outlet connected with the interior, the air inlet passes through the shell and is connected with the outside, valves are installed in the air inlet and the air outlet, the valves are electrically connected with the control system, and the valves are switch valves; The interior of the planar threaded structure is hollow, and the air outlet is connected to the interior of the planar threaded structure through a pipe passing through the outer shell. A magnet and a first channel are sequentially arranged on the circular plate close to the metal plate. A pressure relief valve is installed in the first channel, and the pressure relief valve is connected to the outside through a pipe passing through the outer shell.

[0010] A plurality of sliding grooves are arranged on the plane thread structure near the metal ring, and sliding posts are slidably installed in the plurality of sliding grooves. The sliding posts are connected to the plane thread structure through springs, and a magnetic material is arranged on one side of the sliding post. The magnet and the side opposite to the magnetic material have the same magnetic properties. When the sliding post moves upward, the interior of the planar thread structure and the first channel are connected, and when the sliding post moves downward, the interior of the planar thread structure and the first channel are closed.

[0011] A sealing ring is installed on the upper side of the pressurizing cylinder, a pressure gauge is installed in the pressurizing cylinder, a plurality of pressure sensors are installed in the outer shell on the lower side of the sealing plate, the pressure sensors are electrically connected to the control system, and another set of sealing rings is arranged on the inner wall of the outer shell.

[0012] It includes a collecting mechanism and a positioning mechanism, the positioning mechanism is installed on the outer shell close to the sealing plate, the positioning mechanism includes multiple positioning cylinders and multiple positioning plates, the multiple positioning cylinders are installed on the outer shell, the positioning plates are installed on the piston rods of the positioning cylinders, the collecting mechanism is installed in the middle of the vortex plate, and the collecting mechanism collects and releases the wires of the regulating motor.

[0013] The staff sets the position to be detected through the control panel as required. The control system connects the metal plate on the circular ring plate and the metal ring on the plane thread structure to the circuit. The current enters the effective length of the metal ring from one end of the metal ring, then flows into the metal plate, and flows out from the metal plate to the control system to form a detection circuit. The effective length of the metal ring refers to the length from one end of the metal ring to the contact position of the metal plate, that is, the length of the metal ring connected to the circuit. The larger the effective length, the greater the resistance value of the metal ring connected to the circuit, and the smaller the current in the detection circuit. Therefore, the control system detects the current in the detection circuit, and then obtains the position of the pressurized cylinder and feeds the data back to the control system. After processing, the control system feeds the data back to the adjusting motor, and the adjusting motor drives the adjusting gear to rotate. Since the adjusting gear and the tooth structure on the plane thread structure are meshed, the adjusting gear drives the adjusting motor to move along the plane thread structure. The adjusting motor drives the pressurized cylinder to move synchronously to the position to be detected, and the sealing ring on the pressurized cylinder follows the movement. Since the pressurized cylinder, the adjusting motor and the adjusting gear are provided with multiple groups, multiple pressurized cylinders can be moved to multiple positions on the lower side of the cover plate.

[0014] The cover plate is placed in the outer shell, and the lower side of the cover plate contacts the sealing ring on the pressurizing cylinder. The sealing ring on the pressurizing cylinder seals the cover plate at the position to be detected. The cover plate and the inner wall of the outer shell are sealed by another set of sealing rings. The cover plate is then positioned by the positioning mechanism. The positioning cylinder drives the positioning plate to move downward, and the positioning plate is pressed on the cover plate. The positioning plate positions the cover plate. After that, the sealing plate is installed on the outer shell. The sealing plate and the outer shell are sealed by a threaded connection.

[0015] After the cover plate is placed in the shell, the driving motor drives the driving rod to rotate, the driving rod drives the first connecting rod and the adjusting rod to rotate, the first connecting rod and the adjusting rod respectively drive the second connecting rod and the connecting rod to rotate synchronously, the connecting rod drives the swing rod to swing back and forth, and the swing rod drives the reciprocating plate to move back and forth. At this time, the driving rod, the first connecting rod, the second connecting rod and the connecting rod are equivalent to cranks, the swing rod is equivalent to connecting rods, and the reciprocating plate is equivalent to sliders.

[0016] When the reciprocating plate moves to the right, the volume of the left chamber of the cylinder increases, and the control system opens the valve in the air inlet and closes the valve in the air outlet. External air enters the cylinder through the air inlet. When the reciprocating plate moves to the left, the volume of the left chamber of the cylinder decreases, and the air pressure in the left chamber increases. The valve in the air inlet is closed, and the valve in the air outlet is opened. The reciprocating movement of the reciprocating plate is used to achieve air intake and pressurization. The reciprocating plate pressurizes the air and transports it to the inside of the flat threaded structure through the air outlet and the pipeline. The pressure inside the flat threaded structure increases, and the pressurized air pushes the slide The column moves upward, and the magnetic material and the magnet on the sliding column repel each other to buffer the sliding column and prevent the sliding column from hitting the pressurizing cylinder. The interior of the planar threaded structure is connected to the first channel, and the sliding column stretches the spring. The pressurized air enters the first channel through the interior of the planar threaded structure. The first channel transports the pressurized air to the pressurizing cylinder. The pressurized air in the pressurizing cylinder hits the cover plate, and the pressure gauge in the pressurizing cylinder performs pressure detection on the pressurized air. When the pressure meets the detection requirements, the drive motor stops working, and when the pressure does not meet the detection requirements, the drive motor continues to work.

[0017] When pressurized air hits the cover plate, cracks or deformations occur on the surface of the cover plate. The pressurized air enters the upper side of the cover plate through the cracks or the cover plate protrudes upward. At this time, the pressure above the cover plate increases, and the pressure sensor above the cover plate feeds back data to the control system. After processing, the control system determines that the cover plate is a defective product and the quality cannot meet the use requirements.

[0018] When pressurized air hits the cover, no cracks or deformation occurs on the cover, the pressurized air cannot enter the upper side of the cover, the pressure above the cover remains unchanged, and the pressure sensor above the cover feeds data back to the control system. After processing, the control system determines that the cover is a qualified product and meets the quality requirements.

[0019] When the control system determines that the cover is a qualified product or a defective product, the staff will remove the sealing plate, and the control system will control the air inlet on the cylinder to open, the drive motor to stop working, and the air outlet to open. At this time, the inside of the planar threaded structure is connected with the outside, and the spring connected to the sliding column is released. The spring pulls the sliding column downward, and the control system opens the pressure relief valve to connect the inside of the pressurized cylinder with the outside through the first channel. The staff will take out the cover and place it in the defective product area or the good product area respectively.

[0020] The stroke of the reciprocating plate in the cylinder body is adjustable to meet different usage requirements. The valve in the air inlet is opened, and the drive motor drives the drive rod to rotate according to the data of the internal encoder, and the drive rod drives the adjustment rod to rotate to the vertical position. At this time, the groove on the upper side of the adjustment rod is opposite to the protrusion on the lower side of the adjustment wheel. The staff presses down the adjustment wheel, and the adjustment wheel compresses the spring. The protrusion on the lower side of the adjustment wheel and the groove on the adjustment rod are engaged. After that, the staff rotates the adjustment wheel to the required scale. The adjustment wheel drives the adjustment rod to rotate through the protrusion and groove. Since the adjustment rod and the drive rod are threadedly connected, the adjustment rod drives the connecting rod to move, and the connecting rod drives the second connecting rod to rotate a certain angle. At this time, the distance between the drive rod and the connecting rod changes, and the stroke of the reciprocating plate changes. By adjusting the stroke of the reciprocating plate, the intake volume is adjusted to meet different usage requirements.

[0021] A control system is provided in the control panel, the drive motor and the adjustment motor are equipped with built-in encoders, the adjustment wheel is rotatably mounted on the outer shell through a spring and a bearing, an arrow mark is provided on the adjustment wheel, a scale is provided on the outer shell near the adjustment wheel, a protrusion is provided on the lower side of the adjustment wheel, a groove is provided on one side of the adjustment rod, and the protrusion and the groove are matched.

[0022] Compared with the prior art, the beneficial effects achieved by the present invention are: 1. The cover plate can be tested at different positions, which is more in line with actual needs. The adjusting motor drives the adjusting gear to rotate. Since the adjusting gear and the tooth structure on the plane thread structure are meshed, the adjusting gear drives the adjusting motor to move along the plane thread structure. The adjusting motor drives the pressurizing cylinder to move synchronously to the position to be tested, and the sealing ring on the pressurizing cylinder moves with it. There are multiple groups of pressurizing cylinders, adjusting motors and adjusting gears. Multiple pressurizing cylinders can be moved to multiple positions on the lower side of the cover plate for testing, which is more in line with actual test needs.

[0023] 2. Real-time monitoring of the position of the pressurized cylinder to ensure safe use. The control system connects the metal plate on the circular ring plate and the metal ring on the plane threaded structure to the circuit. The current enters the effective length of the metal ring from one end of the metal ring, then flows into the metal plate, and flows out from the metal plate to the control system to form a detection circuit. The effective length of the metal ring refers to the length from one end of the metal ring to the contact position of the metal plate, that is, the length of the metal ring connected to the circuit. The larger the effective length, the greater the resistance value of the metal ring connected to the circuit, and the smaller the current in the detection circuit. The control system detects the current in the detection circuit, and then obtains the location of the pressurized cylinder, and feeds back the data to the control system. The control system obtains the status of the pressurized cylinder, thereby ensuring safe use. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings: Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 yes Figure 1 Top view after removing the sealing plate; Figure 3 yes Figure 2 A three-dimensional image after removing part of the outer shell, positioning mechanism and control panel; Figure 4 yes Figure 3 Schematic diagram of the structure after removing the cover; Figure 5 yes Figure 4 A partial cross-sectional view of the regulating motor, regulating gear, pressurizing cylinder and scroll plate; Figure 6 yes Figure 5 A partial enlarged view of the middle A area; Figure 7 yes Figure 4 Schematic diagram of the structure on the middle right; Figure 8 yes Figure 4 Schematic diagram of the installation structure of the left-center structure and the collection mechanism.

[0025] In the figure: 1. control panel; 11. housing; 12. adjusting wheel; 13. air inlet; 131. air outlet; 14. cover plate; 2. driving motor; 21. vortex plate; 211. metal plate; 212. metal ring; 213. sliding column; 214. magnet; 215. first channel; 216. tooth structure; 22. driving rod; 23. first connecting rod; 24. second connecting rod; 25. connecting rod; 26. adjusting rod; 27. swing rod; 3. pressurizing cylinder; 301. annular plate; 302. pressure relief valve; 31. adjusting motor; 32. adjusting gear; 33. cylinder body; 34. reciprocating plate; 4. collecting mechanism; 41. positioning mechanism. DETAILED DESCRIPTION

[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-Figure 8The present invention provides a technical solution: comprising a shell 11, a collecting mechanism 4 and a positioning mechanism 41, a sealing plate is connected to the inner thread of the shell 11, a cover plate 14 is arranged below the sealing plate, a vortex plate 21 is installed below the cover plate 14, an adjusting motor 31, an adjusting gear 32 and a pressurizing cylinder 3 are installed in the vortex plate 21, a cylinder body 33 and a reciprocating plate 34 are installed below the vortex plate 21, an adjusting wheel 12 and a driving motor 2 are installed on one side of the vortex plate 21, and a control panel 1 is installed on the shell 11; the adjusting motor 31 and the adjusting gear 32 cooperate to drive the pressurizing cylinder 3 to move, the pressurizing cylinder 3 pressurizes the cover plate 14 for testing, the cylinder body 33 and the driving motor 2 cooperate to realize the pressurization of the pressurizing cylinder 3, and the adjusting wheel 12 adjusts the stroke of the reciprocating plate 34.

[0028] The vortex plate 21 is installed on the outer shell 11. A planar thread structure is provided on the vortex plate 21. A tooth structure 216 is provided on the inner side of the planar thread structure. The tooth structure 216 is arranged along the inner side of the planar thread structure. A casing is provided on the outside of the adjusting motor 31. The casing is slidably connected to the vortex plate 21 through a rolling bearing. The vortex plate 21 limits the sliding of the casing. The adjusting gear 32 is installed on the output shaft of the adjusting motor 31. The pressurizing cylinder 3 is installed on the output shaft of the adjusting motor 31 above the adjusting gear 32 through a bearing. The tooth structure 216 is meshed with the adjusting gear 32.

[0029] A circular ring plate 301 is provided on the pressurizing cylinder 3, and the circular ring plate 301 slides on the plane thread structure, and the circular ring plate is limited by the plane thread structure. A metal plate 211 and a plurality of metal rings 212 are respectively provided on the opposite side of the circular ring plate 301 and the plane thread structure, and the metal plate 211 and the metal ring 212 are in contact with each other, and the metal ring 212 is arranged along the plane thread structure. The metal plate 211 and the metal ring 212 are both electrically connected to the control system, and a sealing ring is installed on the upper side of the pressurizing cylinder 3, and a pressure gauge is installed in the pressurizing cylinder 3. Several pressure sensors are installed in the outer shell 11 on the lower side of the sealing plate, and the pressure sensors are electrically connected to the control system. Another group of sealing rings is provided on the inner wall of the outer shell 11, and a plurality of sliding grooves are provided on the plane thread structure close to the side of the metal ring 212. Sliding posts 213 are slidably installed in the grooves, and the sliding posts 213 are connected to the planar threaded structure through a spring. A magnetic material is arranged on one side of the sliding post 213, and the magnet 214 has the same magnetism as the side opposite to the magnetic material. When the sliding post 213 moves upward, the interior of the planar threaded structure is connected to the first channel 215, and when the sliding post 213 moves downward, the interior of the planar threaded structure and the first channel 215 are closed. The interior of the planar threaded structure is hollow, and the air outlet 131 is connected to the interior of the planar threaded structure through a pipeline passing through the shell 11. The magnet 214 and the first channel 215 are arranged in sequence on the circular plate 301 close to the side of the metal plate 211, and a pressure relief valve 302 is installed in the first channel 215, and the pressure relief valve 302 is connected to the outside through a pipeline passing through the shell 11.

[0030] The driving motor 2 is mounted on the housing 11, and a driving rod 22 is coaxially mounted on the output shaft of the driving motor 2. A first connecting rod 23 is mounted on the driving rod 22. A second connecting rod 24 is rotatably connected to one side of the first connecting rod 23. A connecting rod 25 is mounted on one side of the second connecting rod 24. A swing rod 27 is mounted on one side of the connecting rod 25. An adjusting rod 26 is passed through between the connecting rod 25 and the driving rod 22. The adjusting rod 26 is rotatably connected to the connecting rod 25 through a bearing. Threaded connection, the cylinder body 33 is installed on the outer shell 11, the interior of the cylinder body 33 is hollow, a reciprocating plate 34 is slidably installed in the cylinder body 33, the reciprocating plate 34 and the cylinder body 33 form a sliding sealing connection, the reciprocating plate 34 and the swing rod 27 are rotatably connected through a ball bearing, the cylinder body 33 is provided with an air inlet 13 and an air outlet 131 connected with the interior, the air inlet 13 passes through the outer shell 11 and is connected with the outside, valves are installed in the air inlet 13 and the air outlet 131, and the valves are electrically connected to the control system.

[0031] The positioning mechanism 41 is installed on the outer shell 11 close to the sealing plate. The positioning mechanism 41 includes multiple positioning cylinders and multiple positioning plates. The multiple positioning cylinders are installed on the outer shell 11. The positioning plates are installed on the piston rods of the positioning cylinders. The collecting mechanism 4 is installed in the middle of the vortex plate 21. The collecting mechanism 4 collects and releases the wires of the adjusting motor 31.

[0032] A control system is provided in the control panel 1, and encoders are built into the drive motor 2 and the adjustment motor 31. The adjustment wheel 12 is rotatably mounted on the housing 11 through a spring and a bearing. An arrow mark is provided on the adjustment wheel 12, and a scale is provided on the housing 11 near the adjustment wheel 12. A protrusion is provided on the lower side of the adjustment wheel 12, and a groove is provided on one side of the adjustment rod 26, and the protrusion and the groove are provided in coordination.

[0033] The working principle of the present invention is as follows: the staff sets the position to be detected through the control panel 1 according to the demand, and the control system connects the metal plate 211 on the circular plate 301 and the metal ring 212 on the plane thread structure to the circuit. The current enters the effective length of the metal ring 212 from one end of the metal ring 212, and then flows into the metal plate 211, and flows out from the metal plate 211 to the control system to form a detection circuit. The effective length of the metal ring 212 refers to the length from one end of the metal ring 212 to the contact position of the metal plate 211, that is, the length of the metal ring 212 connected to the circuit. The larger the effective length, the greater the resistance value of the metal ring 212 connected to the circuit, and the smaller the current in the detection circuit. Therefore, the control system controls the detection. The current in the measuring circuit is detected, and then the position of the pressurizing cylinder 3 is obtained, and the data is fed back to the control system. After processing, the control system feeds back the data to the adjusting motor 31, and the adjusting motor 31 drives the adjusting gear 32 to rotate. Since the adjusting gear 32 is engaged with the tooth structure 216 on the plane thread structure, the adjusting gear 32 drives the adjusting motor 31 to move along the plane thread structure, and the adjusting motor 31 drives the pressurizing cylinder 3 to move synchronously to the position to be detected, and the sealing ring on the pressurizing cylinder 3 follows the movement. Since the pressurizing cylinder 3, the adjusting motor 31 and the adjusting gear 32 are all provided with multiple groups, multiple pressurizing cylinders 3 can be moved to multiple positions on the lower side of the cover plate 14 for multi-point bombardment testing.

[0034] The cover plate 14 is placed in the outer shell 11, and the lower side of the cover plate 14 contacts the sealing ring on the pressurizing cylinder 3. The sealing ring on the pressurizing cylinder 3 seals the cover plate 14 at the position to be detected. The cover plate 14 and the inner wall of the outer shell 11 are sealed by another set of sealing rings. The cover plate 14 is then positioned by the positioning mechanism 41. The positioning cylinder drives the positioning plate to move downward, and the positioning plate is pressed on the cover plate 14. The positioning plate positions the cover plate 14. After that, the sealing plate is installed on the outer shell 11, and the sealing plate and the outer shell 11 are sealed by a threaded connection.

[0035] After the cover plate 14 is placed in the outer shell 11, the driving motor 2 drives the driving rod 22 to rotate, the driving rod 22 drives the first connecting rod 23 and the adjusting rod 26 to rotate, the first connecting rod 23 and the adjusting rod 26 respectively drive the second connecting rod 24 and the connecting rod 25 to rotate synchronously, the connecting rod 25 drives the swing rod 27 to swing back and forth, and the swing rod 27 drives the reciprocating plate 34 to move back and forth. At this time, the driving rod 22, the first connecting rod 23, the second connecting rod 24 and the connecting rod 25 are equivalent to cranks, the swing rod 27 is equivalent to a connecting rod, and the reciprocating plate 34 is equivalent to a slider.

[0036] When the reciprocating plate 34 moves to the right, the volume of the left chamber of the cylinder body 33 increases, and the control system opens the valve in the air inlet 13 and closes the valve in the air outlet 131. External air enters the cylinder body 33 through the air inlet 13. When the reciprocating plate 34 moves to the left, the volume of the left chamber of the cylinder body 33 decreases, and the air pressure in the left chamber increases. The valve in the air inlet 13 is closed, and the valve in the air outlet 131 is opened. The reciprocating movement of the reciprocating plate 34 is used to achieve air intake and pressurization. The reciprocating plate 34 pressurizes the air and transports it to the inside of the planar threaded structure through the air outlet 131 and the pipeline. The pressure inside the planar threaded structure increases, and the pressurized air pushes the sliding column 21. 3 moves upward, the magnetic material on the sliding column 213 and the magnet 214 repel each other to buffer the sliding column 213 to prevent the sliding column 213 from hitting the pressurizing cylinder 3, the interior of the planar threaded structure is connected with the first channel 215, the sliding column 213 stretches the spring, and the pressurized air enters the first channel 215 through the interior of the planar threaded structure, and the first channel 215 transports the pressurized air to the pressurizing cylinder 3, and the pressurized air in the pressurizing cylinder 3 hits the cover plate 14, and the pressure gauge in the pressurizing cylinder 3 detects the pressure of the pressurized air. When the pressure meets the detection requirements, the driving motor 2 stops working, and when the pressure does not meet the detection requirements, the driving motor 2 continues to work.

[0037] When pressurized air hits the cover plate 14, cracks or deformations occur on the surface of the cover plate 14, and the pressurized air enters the upper side of the cover plate 14 through the cracks or the cover plate 14 protrudes upward. At this time, the pressure above the cover plate 14 increases, and the pressure sensor above the cover plate 14 feeds back data to the control system. After processing, the control system determines that the cover plate 14 is a defective product and the quality cannot meet the use requirements.

[0038] When the pressurized air hits the cover plate 14, the cover plate 14 does not produce cracks or deformation, the pressurized air cannot enter the upper side of the cover plate 14, the pressure above the cover plate 14 remains unchanged, and the pressure sensor above the cover plate 14 feeds data back to the control system. After processing, the control system determines that the cover plate 14 is a qualified product and meets the quality requirements.

[0039] When the control system determines that the cover plate 14 is a qualified product or a defective product, the staff removes the sealing plate, and the control system controls the air inlet 13 on the cylinder body 33 to open, the drive motor 2 to stop working, and the air outlet 131 to open. At this time, the interior of the planar threaded structure is connected with the outside, and the spring connected to the sliding column 213 is released. The spring pulls the sliding column 213 to move downward, and the control system opens the pressure relief valve 302 to connect the inside of the pressurizing cylinder 3 with the outside through the first channel 215. The staff takes out the cover plate 14 and places it in the defective product area or the good product area respectively.

[0040] The stroke of the reciprocating plate 34 in the cylinder 33 is adjustable to meet different usage requirements. The valve in the air inlet 13 is opened, and the driving motor 2 drives the driving rod 22 to rotate according to the data of the internal encoder, and the driving rod 22 drives the adjusting rod 26 to rotate to a vertical position. At this time, the groove on the upper side of the adjusting rod 26 is just opposite to the protrusion on the lower side of the adjusting wheel 12. The staff presses down the adjusting wheel 12, and the adjusting wheel 12 compresses the spring. The protrusion on the lower side of the adjusting wheel 12 and the groove on the adjusting rod 26 are engaged. After that, the staff rotates the adjusting wheel 12 to the required scale, and the adjusting wheel 12 drives the adjusting rod 26 to rotate through the protrusion and the groove. Since the adjusting rod 26 and the driving rod 22 are threadedly connected, the adjusting rod 26 drives the connecting rod 25 to move, and the connecting rod 25 drives the second connecting rod 24 to rotate a certain angle. At this time, the distance between the driving rod 22 and the connecting rod 25 changes, and the stroke of the reciprocating plate 34 changes. By adjusting the stroke of the reciprocating plate 34, the intake volume is adjusted to meet different usage requirements.

[0041] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A pneumatic explosion-proof cover plate testing device with multi-point bombardment simulation function, characterized in that: The invention comprises a housing (11), wherein a sealing plate is connected to the housing (11) through an internal thread, a cover plate (14) is arranged below the sealing plate, a vortex plate (21) is installed below the cover plate (14), an adjusting motor (31), an adjusting gear (32) and a pressurizing cylinder (3) are installed inside the vortex plate (21), a cylinder body (33) and a reciprocating plate (34) are installed below the vortex plate (21), an adjusting wheel (12) and a driving motor (2) are installed on one side of the vortex plate (21), and a control panel (1) is installed on the housing (11); The regulating motor (31) and the regulating gear (32) cooperate to drive the pressurizing cylinder (3) to move, the pressurizing cylinder (3) performs a pressure test on the cover plate (14), the cylinder body (33) and the driving motor (2) cooperate to achieve pressurization of the pressurizing cylinder (3), and the regulating wheel (12) adjusts the stroke of the reciprocating plate (34).

2. The pneumatic explosion-proof cover plate testing device with multi-point bombardment simulation function according to claim 1, characterized in that: The vortex plate (21) is mounted on the housing (11); a planar thread structure is provided on the vortex plate (21); a tooth structure (216) is provided on the inner side of the planar thread structure; the tooth structure (216) is arranged along the inner side of the planar thread structure; a housing is provided on the outside of the regulating motor (31); the housing is slidably connected to the vortex plate (21) via a rolling bearing; the vortex plate (21) limits the sliding position of the housing; the regulating gear (32) is mounted on the output shaft of the regulating motor (31); the pressurizing cylinder (3) is mounted on the output shaft of the regulating motor (31) above the regulating gear (32) via a bearing; and the tooth structure (216) is meshed with the regulating gear (32).

3. The pneumatic explosion-proof cover plate testing device with multi-point bombardment simulation function according to claim 2, characterized in that: The pressurizing cylinder (3) is provided with a circular plate (301), the circular plate (301) slides on the planar thread structure, the circular plate is limited by the planar thread structure, a metal plate (211) and a plurality of groups of metal rings (212) are respectively provided on the side opposite to the circular plate (301) and the planar thread structure, the metal plate (211) and the metal ring (212) are in contact, the metal ring (212) is arranged along the planar thread structure, and the metal plate (211) and the metal ring (212) are both electrically connected to a control system.

4. The pneumatic explosion-proof cover plate testing device with multi-point bombardment simulation function according to claim 3 is characterized in that: The drive motor (2) is mounted on the housing (11); a drive rod (22) is coaxially mounted on the output shaft of the drive motor (2); a first connecting rod (23) is mounted on the drive rod (22); one side of the first connecting rod (23) is rotatably connected to a second connecting rod (24); one side of the second connecting rod (24) is mounted with a connecting rod (25); one side of the connecting rod (25) is mounted with a swing rod (27); an adjusting rod (26) passes through between the connecting rod (25) and the drive rod (22); the adjusting rod (26) is rotatably connected to the connecting rod (25) via a bearing; and the adjusting rod (26) and the drive rod (22) are threadedly connected.

5. The pneumatic explosion-proof cover plate testing device with multi-point bombardment simulation function according to claim 4, characterized in that: The cylinder body (33) is mounted on the outer shell (11); the interior of the cylinder body (33) is hollow; a reciprocating plate (34) is slidably mounted in the cylinder body (33); the reciprocating plate (34) and the cylinder body (33) form a sliding sealing connection; the reciprocating plate (34) and the swing rod (27) are rotatably connected via a ball bearing.

6. The pneumatic explosion-proof cover plate testing device with multi-point bombardment simulation function according to claim 5, characterized in that: The cylinder body (33) is provided with an air inlet (13) and an air outlet (131) which are in communication with the interior, the air inlet (13) passes through the outer shell (11) and is in communication with the exterior, and valves are installed in the air inlet (13) and the air outlet (131), and the valves are electrically connected to the control system; The interior of the planar threaded structure is hollow, and the air outlet (131) is connected to the interior of the planar threaded structure through a pipeline passing through the outer shell (11). A magnet (214) and a first channel (215) are sequentially arranged on the annular plate (301) on the side close to the metal plate (211), and a pressure relief valve (302) is installed in the first channel (215). The pressure relief valve (302) is connected to the outside through a pipeline passing through the outer shell (11).

7. The pneumatic explosion-proof cover plate testing device with multi-point bombardment simulation function according to claim 6, characterized in that: A plurality of sliding grooves are arranged on the plane thread structure near the side of the metal ring (212), and a sliding column (213) is slidably installed in each of the sliding grooves. The sliding column (213) is connected to the plane thread structure via a spring, and a magnetic material is arranged on one side of the sliding column (213). The magnet (214) and the side opposite to the magnetic material have the same magnetic properties. When the sliding column (213) moves upward, the interior of the planar thread structure and the first channel (215) are connected, and when the sliding column (213) moves downward, the interior of the planar thread structure and the first channel (215) are closed.

8. The pneumatic explosion-proof cover plate testing device with multi-point bombardment simulation function according to claim 7, characterized in that: A sealing ring is installed on the upper side of the pressurizing cylinder (3), a pressure gauge is installed in the pressurizing cylinder (3), a plurality of pressure sensors are installed in the outer shell (11) at the lower side of the sealing plate, the pressure sensors are electrically connected to the control system, and another set of sealing rings is provided on the inner wall of the outer shell (11).

9. The pneumatic explosion-proof cover plate testing device with multi-point bombardment simulation function according to claim 8, comprising a collecting mechanism (4) and a positioning mechanism (41), characterized in that: The positioning mechanism (41) is mounted on the housing (11) near the sealing plate, and comprises a plurality of positioning cylinders and a plurality of positioning plates. The plurality of positioning cylinders are mounted on the housing (11), and the positioning plates are mounted on piston rods of the positioning cylinders. The collecting mechanism (4) is mounted in the middle of the vortex plate (21), and the collecting mechanism (4) collects and releases the wires of the regulating motor (31).

10. The pneumatic explosion-proof cover plate testing device with multi-point bombardment simulation function according to claim 9, characterized in that: The control panel (1) is provided with a control system, the drive motor (2) and the adjustment motor (31) are provided with encoders, the adjustment wheel (12) is rotatably mounted on the housing (11) via a spring and a bearing, an arrow mark is provided on the adjustment wheel (12), a scale is provided on the housing (11) near the adjustment wheel (12), a protrusion is provided on the lower side of the adjustment wheel (12), a groove is provided on one side of the adjustment rod (26), and the protrusion and the groove are provided in a coordinated manner.

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