A pneumatic explosion-proof cover plate test device with multi-point bombardment simulation function

Abstract

The present invention discloses a pneumatic explosion-proof cover plate testing device with a multi-point bombardment simulation function, which relates to the technical field of cover plate testing devices. It includes a housing, a collection mechanism and a positioning mechanism. A sealing plate is threadedly connected inside the housing. A cover plate is arranged below the sealing plate. A scroll plate is installed below the cover plate. An adjustment motor, an adjustment gear and a pressure cylinder are installed inside the scroll plate. A cylinder block and a reciprocating plate are installed below the scroll plate. An adjustment wheel and a driving motor are installed on one side of the scroll plate. A control panel is installed on the housing. The adjustment motor and the adjustment gear cooperate to drive the pressure cylinder to move, the pressure cylinder pressurizes the cover plate, the cylinder block and the driving motor cooperate to achieve the pressurization of the pressure cylinder, the adjustment wheel adjusts the stroke of the reciprocating plate, the collection mechanism collects and releases the wires of the adjustment motor, and the positioning mechanism positions the cover plate.

Description

Technical Field

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

[0002] The explosion-proof cover plate of a capacitor is a safety device used to reduce potential safety hazards when the capacitor fails. The strength of the capacitor cover plate needs to meet certain requirements. Currently, the detection of capacitor cover plates mainly adopts a pressurization method, where the entire capacitor cover plate is pressurized for testing. This processing method makes the pressure of the pressurized air evenly distributed in each area of the capacitor cover plate, and it is impossible to obtain whether different areas of the capacitor cover plate meet the usage requirements. Therefore, the existing capacitor cover plate testing devices mainly have the following problems: (1) It is impossible to detect different areas of the capacitor cover plate; (2) After the test, manual observation is required to obtain the test results, which is time-consuming and laborious. Summary of the Invention

[0003] The purpose 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 mentioned in the above background technique.

[0004] To solve the above technical problems, the present invention provides the following technical solutions: It includes a housing, a sealing plate is threadedly connected inside the housing, a cover plate is arranged below the sealing plate, a scroll plate is installed below the cover plate, an adjustment motor, an adjustment gear, and a pressurizing cylinder are installed inside the scroll plate, a cylinder body and a reciprocating plate are installed below the scroll plate, an adjustment wheel and a driving motor are installed on one side of the scroll plate, and a control panel is installed on the housing;

[0005] The adjustment motor and the adjustment gear cooperate to drive the pressurizing cylinder to move, the pressurizing cylinder pressurizes the cover plate for testing, the cylinder body and the driving motor cooperate to achieve the pressurization of the pressurizing cylinder, and the adjustment wheel adjusts the stroke of the reciprocating plate.

[0006] The scroll plate is installed on the housing, a planar thread structure is arranged on the scroll plate, a toothed structure is arranged inside the planar thread structure, the toothed structure is arranged along the inside of the planar thread structure, a casing is arranged outside the adjustment motor, the casing is slidably connected to the scroll plate through a rolling bearing, the scroll plate slidably limits the casing, the adjustment gear is installed on the output shaft of the adjustment motor, the pressurizing cylinder is installed on the output shaft of the adjustment motor above the adjustment gear through a bearing, and the toothed structure meshes with the adjustment gear.

[0007] A circular ring plate is provided on the pressure cylinder. The circular ring plate slides on a planar thread structure and is limited by the planar thread structure. On the opposite sides of the circular ring plate and the planar thread structure, a metal plate and multiple groups of metal rings are respectively provided. The metal plate contacts the metal rings. The metal rings are arranged along the planar thread structure. Both the metal plate and the metal rings are electrically connected to the control system.

[0008] The driving motor is installed on the outer shell. A driving rod is coaxially installed on the output shaft of the driving motor. A first connecting rod is installed on the driving rod. A second connecting rod is rotatably connected to one side of the first connecting rod. A connecting rod is installed on one side of the second connecting rod. A swinging rod is installed on one side of the connecting rod. An adjusting rod passes through between the connecting rod and the driving rod. The adjusting rod is rotatably connected to the connecting rod through a bearing. The adjusting rod is threadedly connected to the driving rod.

[0009] The cylinder body is installed on the outer shell. The inside of the cylinder body is hollow. A reciprocating plate is slidably installed inside the cylinder body. The reciprocating plate forms a sliding seal connection with the cylinder body. The reciprocating plate is rotatably connected to the swinging rod through a ball bearing.

[0010] An air inlet and an air outlet communicating with the inside are provided on the cylinder body. The air inlet passes through the outer shell and communicates with the outside. Valves are installed in both the air inlet and the air outlet. The valves are electrically connected to the control system. The valves are on-off valves;

[0011] The inside of the planar thread structure is hollow. The air outlet communicates with the inside of the planar thread structure through a pipeline passing through the outer shell. A magnet and a first channel are sequentially provided on the circular ring plate close to the metal plate side. A pressure relief valve is installed in the first channel. The pressure relief valve communicates with the outside through a pipeline passing through the outer shell.

[0012] A plurality of sliding grooves are provided on the planar thread structure close to the metal ring side. A sliding column is slidably installed in each of the plurality of sliding grooves. The sliding column is connected to the planar thread structure through a spring. A magnetic material is provided on one side of the sliding column. The opposite sides of the magnet and the magnetic material have the same magnetism;

[0013] When the sliding column moves upward, the inside of the planar thread structure and the first channel are communicated. When the sliding column moves downward, the inside of the planar thread structure and the first channel are closed.

[0014] A sealing ring is installed on the upper side of the pressure cylinder. A pressure gauge is installed inside the pressure cylinder. A plurality of pressure sensors are installed inside the outer shell under the sealing plate. 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.

[0015] It includes a collecting mechanism and a positioning mechanism. The positioning mechanism is installed on the outer shell near the sealing plate. The positioning mechanism includes a plurality of positioning cylinders and a plurality of positioning plates. The plurality of positioning cylinders are installed on the outer shell, and the positioning plates are installed on the piston rods of the positioning cylinders. The collecting mechanism is installed in the middle of the scroll plate, and the collecting mechanism collects and releases the wires of the adjusting motor.

[0016] The staff sets the position to be detected through the control panel according to requirements. The control system connects the metal plate on the circular ring plate and the metal ring on the planar 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 of 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 greater 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 pressure cylinder, and feeds the data back to the control system. After being processed by the control system, the data is fed back to the adjusting motor, and the adjusting motor drives the adjusting gear to rotate. Since the adjusting gear meshes with the tooth-shaped structure on the planar thread structure, the adjusting gear drives the adjusting motor to move along the planar thread structure, and the adjusting motor drives the pressure cylinder to move synchronously to the position to be detected. The sealing ring on the pressure cylinder moves accordingly. Since there are multiple groups of pressure cylinders, adjusting motors and adjusting gears, multiple pressure cylinders can move to multiple positions under the cover plate.

[0017] Place the cover plate in the outer shell. The sealing ring on the lower side of the cover plate contacts the sealing ring on the pressure cylinder. The sealing ring on the pressure cylinder seals the position to be detected on the cover plate. The cover plate and the inner wall of the outer shell are sealed by another group of sealing rings. Then, the cover plate is positioned by the positioning mechanism. The positioning cylinder drives the positioning plate to move downward, and the positioning plate presses on the cover plate to position the cover plate. After that, install the sealing plate on the outer shell, and the sealing plate and the outer shell are sealed by threaded connection.

[0018] After the cover plate is placed in the outer 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 drive the second connecting rod and the connecting rod to rotate synchronously. The connecting rod drives the swing rod to swing reciprocally, and the swing rod drives the reciprocating plate to move reciprocally. At this time, the driving rod, the first connecting rod, the second connecting rod and the connecting rod are equivalent to the crank, the swing rod is equivalent to the connecting rod, and the reciprocating plate is equivalent to the slider.

[0019] When the reciprocating plate moves to the right, the volume of the left chamber of the cylinder block increases. The control system opens the valve in the air inlet and closes the valve in the air outlet. External air enters the cylinder block through the air inlet. When the reciprocating plate moves to the left, the volume of the left chamber of the cylinder block decreases, and the air pressure in the left chamber increases. The valve in the air inlet closes, and the valve in the air outlet opens. Through the reciprocating movement of the reciprocating plate, air intake and pressurization are achieved. After the reciprocating plate pressurizes the air, it is transported to the inside of the planar thread structure through the air outlet and the pipeline. The pressure inside the planar thread structure increases, and the pressurized air pushes the sliding column upward. The magnetic material on the sliding column repels the magnet to buffer the sliding column and prevent the sliding column from hitting the pressurizing cylinder. The inside of the planar thread structure is connected to the first channel. The sliding column stretches the spring, and the pressurized air enters the first channel through the inside of the planar thread structure. The first channel transports the pressurized air to the inside of the pressurizing cylinder. The pressurized air in the pressurizing cylinder bombards the cover plate, and the pressure gauge in the pressurizing cylinder detects the pressure of the pressurized air. When the pressure meets the detection requirements, the drive motor stops working. When the pressure does not meet the detection requirements, the drive motor continues to work.

[0020] When the pressurized air bombards 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 or the cover plate protrudes upward through the crack. At this time, the pressure above the cover plate increases, and the pressure sensor above the cover plate feeds back the data to the control system. After being processed by the control system, it is determined that the cover plate is a defective product and its quality cannot meet the usage requirements.

[0021] When the pressurized air bombards the cover plate, no cracks or deformations occur on the cover plate, and the pressurized air cannot enter the upper side of the cover plate. The pressure above the cover plate remains unchanged, and the pressure sensor above the cover plate feeds back the data to the control system. After being processed by the control system, it is determined that the cover plate is a qualified product and its quality meets the requirements.

[0022] When the control system determines that the cover plate is a qualified product or a defective product, the staff removes the sealing plate. The control system controls the air inlet on the cylinder block to open, the drive motor to stop working, and the air outlet to open. At this time, the inside of the planar thread structure is connected to the outside, the spring connected to the sliding column is released, and the spring pulls the sliding column downward. The control system opens the pressure relief valve to make the inside of the pressurizing cylinder communicate with the outside through the first channel. The staff takes out the cover plate and places it in the defective product area or the qualified product area respectively.

[0023] The stroke of the reciprocating plate in the cylinder body is designed to be adjustable to meet different usage requirements. When the valve in the air inlet is opened, the driving motor drives the driving rod to rotate according to the data of the internal encoder. The driving rod drives the adjusting rod to rotate to the vertical position. At this time, the groove on the upper side of the adjusting rod is exactly opposite to the protrusion on the lower side of the adjusting wheel. The operator presses down the adjusting wheel, and the adjusting wheel compresses the spring. The protrusion on the lower side of the adjusting wheel engages with the groove on the adjusting rod. Then, the operator rotates the adjusting wheel to the required scale. The adjusting wheel drives the adjusting rod to rotate through the protrusion and the groove. Since the adjusting rod is threadedly connected to the driving rod, the adjusting rod drives the connecting rod to move. The connecting rod drives the second connecting rod to rotate by a certain angle. At this time, the distance between the driving rod and the connecting rod changes, and the stroke of the reciprocating plate changes. By adjusting the stroke of the reciprocating plate, the air intake volume is further adjusted to meet different usage requirements.

[0024] A control system is provided inside the control panel. The driving motor and the adjusting motor are internally provided with encoders. The adjusting wheel is rotatably installed on the housing through a spring and a bearing. An arrow mark is provided on the adjusting wheel. A scale is provided on the housing near the adjusting wheel. A protrusion is provided on the lower side of the adjusting wheel. A groove is provided on one side of the adjusting rod. The protrusion and the groove are cooperatively arranged.

[0025] Compared with the prior art, the beneficial effects achieved by the present invention are as follows:

[0026] 1. Different positions of the cover plate can be tested, which is more in line with the actual requirements. The adjusting motor drives the adjusting gear to rotate. Since the adjusting gear meshes with the tooth-shaped structure on the planar thread structure, the adjusting gear drives the adjusting motor to move along the planar thread structure. The adjusting motor drives the pressure cylinder to move synchronously to the position to be detected. The sealing ring on the pressure cylinder moves accordingly. Multiple pressure cylinders, adjusting motors, and adjusting gears are provided. Multiple pressure cylinders can move to multiple positions under the cover plate for testing, which is more in line with the actual testing requirements.

[0027] 2. The position of the pressure cylinder is monitored in real time to ensure safe use. The control system connects the metal plate on the circular ring plate and the metal ring on the planar thread structure to the circuit. The current enters from one end of the metal ring into the effective length 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 greater 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, thereby obtaining the position of the pressure cylinder and feeding back the data to the control system. The control system obtains the state of the pressure cylinder, thereby ensuring safe use. Description of the Drawings

[0028] 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 to the present invention. In the drawings:

[0029] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0030] Figure 2 is Figure 1 a top view after removing the sealing plate;

[0031] Figure 3 is Figure 2 a perspective view after removing part of the outer shell, positioning mechanism, control panel, etc.;

[0032] Figure 4 is Figure 3 a schematic diagram of the structure after removing the cover plate;

[0033] Figure 5 is Figure 4 a partial cross-sectional view of the adjusting motor, adjusting gear, pressure cylinder and scroll plate in

[0034] Figure 6 is Figure 5 a partial enlarged view of area A in

[0035] Figure 7 is Figure 4 a schematic diagram of the right-side part structure in

[0036] Figure 8 is Figure 4 a schematic diagram of the installation structure of the left-side part structure and the collection mechanism in

[0037] In the figures: 1, control panel; 11, outer shell; 12, adjusting wheel; 13, air inlet; 131, air outlet; 14, cover plate; 2, driving motor; 21, scroll plate; 211, metal plate; 212, metal ring; 213, sliding column; 214, magnet; 215, first channel; 216, tooth-shaped structure; 22, driving rod; 23, first connecting rod; 24, second connecting rod; 25, connecting rod; 26, adjusting rod; 27, swinging rod; 3, pressure cylinder; 301, circular ring plate; 302, pressure relief valve; 31, adjusting motor; 32, adjusting gear; 33, cylinder block; 34, reciprocating plate; 4, collection mechanism; 41, positioning mechanism. Detailed implementation manners

[0038] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0039] Please refer to Figures 1-8 , the present invention provides a technical solution: including a housing 11, a collection mechanism 4 and a positioning mechanism 41. A sealing plate is threadedly connected inside the housing 11. A cover plate 14 is arranged below the sealing plate. A scroll plate 21 is installed below the cover plate 14. An adjustment motor 31, an adjustment gear 32 and a pressure cylinder 3 are installed inside the scroll plate 21. A cylinder block 33 and a reciprocating plate 34 are installed below the scroll plate 21. An adjustment wheel 12 and a drive motor 2 are installed on one side of the scroll plate 21. A control panel 1 is installed on the housing 11. The adjustment motor 31 and the adjustment gear 32 cooperate to drive the pressure cylinder 3 to move, and the pressure cylinder 3 pressurizes and tests the cover plate 14. The cylinder block 33 and the drive motor 2 cooperate to pressurize the pressure cylinder 3, and the adjustment wheel 12 adjusts the stroke of the reciprocating plate 34.

[0040] The scroll plate 21 is installed on the housing 11. A planar thread structure is arranged on the scroll plate 21. A tooth-shaped structure 216 is arranged inside the planar thread structure. The tooth-shaped structure 216 is arranged along the inside of the planar thread structure. A casing is arranged outside the adjustment motor 31. The casing is slidably connected to the scroll plate 21 through a rolling bearing. The scroll plate 21 slidably limits the casing. The adjustment gear 32 is installed on the output shaft of the adjustment motor 31. The pressure cylinder 3 is installed on the output shaft of the adjustment motor 31 above the adjustment gear 32 through a bearing. The tooth-shaped structure 216 meshes with the adjustment gear 32.

[0041] A circular ring plate 301 is provided on the pressure cylinder 3. The circular ring plate 301 slides on the planar thread structure, and the circular ring plate is limited by the planar thread structure. Metal plates 211 and multiple groups of metal rings 212 are respectively provided on the opposite sides of the circular ring plate 301 and the planar thread structure. The metal plate 211 contacts the metal ring 212. The metal rings 212 are arranged along the planar thread structure. Both the metal plate 211 and the metal rings 212 are electrically connected to the control system. A sealing ring is installed on the upper side of the pressure cylinder 3. A pressure gauge is installed inside the pressure cylinder 3. Several pressure sensors are installed inside the housing 11 on the lower side of the sealing plate. The pressure sensors are electrically connected to the control system. Another group of sealing rings is provided on the inner wall of the housing 11. Several sliding grooves are provided on the planar thread structure near the metal rings 212. Sliding columns 213 are slidably installed in the several sliding grooves. The sliding columns 213 are connected to the planar thread structure through springs. One side of the sliding column 213 is made of magnetic material, and the opposite sides of the magnet 214 and the magnetic material have the same magnetism. When the sliding column 213 moves upward, the interior of the planar thread structure communicates with the first channel 215. When the sliding column 213 moves downward, the interior of the planar thread structure is closed to the first channel 215. The interior of the planar thread structure is hollow. The air outlet 131 communicates with the interior of the planar thread structure through a pipe passing through the housing 11. A magnet 214 and a first channel 215 are successively provided on the circular ring plate 301 near the metal plate 211. A pressure relief valve 302 is installed in the first channel 215. The pressure relief valve 302 communicates with the outside through a pipe passing through the housing 11.

[0042] The driving motor 2 is installed on the housing 11. A driving rod 22 is coaxially installed on the output shaft of the driving motor 2. A first connecting rod 23 is installed 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 installed on one side of the second connecting rod 24. A swing rod 27 is installed on one side of the connecting rod 25. An adjusting rod 26 passes 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. The adjusting rod 26 is threadedly connected to the driving rod 22. The cylinder block 33 is installed on the housing 11. The interior of the cylinder block 33 is hollow. A reciprocating plate 34 is slidably installed inside the cylinder block 33. The reciprocating plate 34 and the cylinder block 33 form a sliding seal connection. The reciprocating plate 34 and the swing rod 27 are rotatably connected through a ball bearing. The cylinder block 33 is provided with an air inlet 13 and an air outlet 131 communicating with the interior. The air inlet 13 passes through the housing 11 and communicates with the outside. Valves are installed in both the air inlet 13 and the air outlet 131. The valves are electrically connected to the control system.

[0043] The positioning mechanism 41 is installed on the housing 11 near the sealing plate. The positioning mechanism 41 includes multiple positioning cylinders and multiple positioning plates. The multiple positioning cylinders are installed on the housing 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 scroll plate 21. The collecting mechanism 4 collects and releases the wires of the adjusting motor 31.

[0044] A control system is provided inside the control panel 1. 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. A scale is provided on the housing 11 close to 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. The protrusion and the groove are cooperatively arranged.

[0045] The working principle of the present invention: The staff sets the position to be detected through the control panel 1 according to requirements. The control system connects the metal plate 211 on the circular ring plate 301 and the metal ring 212 on the planar thread structure to the circuit. The current enters from one end of the metal ring 212 into the effective length of the metal ring 212, then flows into the metal plate 211, and flows out of the metal plate 211 to the control system, forming 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 greater 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 detects the current in the detection circuit, thereby obtaining the position of the pressure cylinder 3, and feeds the data back to the control system. After being processed by the control system, the data is fed back to the adjustment motor 31. The adjustment motor 31 drives the adjustment gear 32 to rotate. Since the adjustment gear 32 meshes with the tooth-shaped structure 216 on the planar thread structure, the adjustment gear 32 drives the adjustment motor 31 to move along the planar thread structure. The adjustment motor 31 drives the pressure cylinder 3 to move synchronously to the position to be detected. The sealing ring on the pressure cylinder 3 moves accordingly. Since multiple groups of the pressure cylinder 3, the adjustment motor 31, and the adjustment gear 32 are provided, multiple pressure cylinders 3 can move to multiple positions under the cover plate 14 for multi-point bombardment testing.

[0046] Place the cover plate 14 inside the housing 11. The sealing ring on the lower side of the cover plate 14 contacts the sealing ring on the pressure cylinder 3. The sealing ring on the pressure cylinder 3 seals the position to be detected on the cover plate 14. The cover plate 14 and the inner wall of the housing 11 are sealed by another group of sealing rings. Then, the cover plate 14 is positioned by the positioning mechanism 41. The positioning cylinder drives the positioning plate to move downward. The positioning plate presses on the cover plate 14, and the positioning plate positions the cover plate 14. After that, install the sealing plate on the housing 11. The sealing plate and the housing 11 are sealed by threaded connection.

[0047] 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.

[0048] 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.

[0049] 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.

[0050] 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.

[0051] When the control system determines that the cover plate 14 is a qualified product or a defective product, the staff removes the sealing plate. The control system controls the intake port 13 on the cylinder block 33 to open, the drive motor 2 to stop working, and the air outlet 131 to open. At this time, the inside and outside of the planar thread structure are connected, and the spring connected to the sliding column 213 is released. The spring pulls the sliding column 213 to move downward. The control system opens the pressure relief valve 302 to connect the inside of the pressure cylinder 3 through the first channel 215 with the outside. The staff removes the cover plate 14 and places it in the defective product area or the qualified product area respectively.

[0052] The stroke of the reciprocating plate 34 in the cylinder block 33 is designed to be adjustable to meet different usage requirements. The valve in the intake port 13 is opened, and the drive motor 2 drives the drive rod 22 to rotate according to the data of the internal encoder. The drive rod 22 drives the adjusting rod 26 to rotate to the vertical position. At this time, the groove on the upper side of the adjusting rod 26 is facing 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. Then, the staff rotates the adjusting wheel 12 to the required scale. The adjusting wheel 12 drives the adjusting rod 26 to rotate through the protrusion and the groove. Since the adjusting rod 26 is threadedly connected to the drive rod 22, the adjusting rod 26 drives the connecting rod 25 to move. The connecting rod 25 drives the second connecting rod 24 to rotate a certain angle. At this time, the distance between the drive 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 air volume is further adjusted to meet different usage requirements.

[0053] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent in such process, method, article or device.

[0054] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included 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) by means of 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), and the pressurizing cylinder (3), the adjusting motor (31) and the adjusting gear (32) are all arranged in multiple groups, 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 (33) and the driving motor (2) cooperate to realize the pressurization of the pressurizing cylinder (3), and the regulating wheel (12) adjusts the stroke of the reciprocating plate (34); 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); 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.

2. The pneumatic explosion-proof cover plate testing device with multi-point bombardment simulation function according to claim 1, 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.

3. The pneumatic explosion-proof cover plate testing device with multi-point bombardment simulation function according to claim 2, 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.

4. The pneumatic explosion-proof cover plate testing device with multi-point bombardment simulation function according to claim 3 is 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).

5. The pneumatic explosion-proof cover plate testing device with multi-point bombardment simulation function according to claim 4, 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.

6. The pneumatic explosion-proof cover plate testing device with multi-point bombardment simulation function according to claim 5, 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).

7. A pneumatic explosion-proof cover plate testing device with a multi-point bombardment simulation function according to claim 6, 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).

8. The pneumatic explosion-proof cover plate testing device with multi-point bombardment simulation function according to claim 7, 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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