Intelligent field detection device

Abstract

The invention discloses an intelligent on-site detection device, and relates to the technical field of air brick detection, the intelligent on-site detection device comprises a main body and an air brick used for blowing air into a steel ladle, the air brick is provided with an air inlet pipe, the main body is provided with an air tank, the air tank is provided with a connecting pipe used for communicating the air inlet pipe of the air brick, and the connecting pipe is connected with the air inlet pipe of the air brick. The main body is further provided with a plugging and pressurizing mechanism and a monitoring mechanism. The plugging and pressurizing mechanism comprises a plugging assembly used for plugging the connecting pipe and a pressurizing assembly used for increasing air pressure in the air tank. When the connecting pipe is plugged by the plugging assembly, the pressurizing assembly operates to increase the air pressure of the air tank; and the monitoring mechanism is used for monitoring the change of air pressure in the air tank. According to the intelligent on-site detection device provided by the invention, the air pressure in the air tank can be increased through the pressurizing assembly, and the connecting pipe is opened through the plugging assembly, so that the air in the air tank can flow to the air brick through the connecting pipe, and whether the air permeability of the air brick meets the requirement or not is detected.

Description

Technical Field

[0001] The invention relates to the technical field of air-permeable brick detection, and in particular to an intelligent on-site detection device. Background Art

[0002] A ladle is a container used to hold molten steel. Generally, air bricks are set at the bottom of the ladle. Special gases (usually oxygen, argon or nitrogen) can be blown into the ladle through the air bricks to enhance the mixing and melting effects of the molten steel.

[0003] For air bricks, they need to resist the erosion of molten steel and maintain good air permeability. Therefore, air bricks have high requirements for material selection. They are generally made of high-purity materials through sintering. They have the advantages of high blow-through rate, erosion resistance, thermal vibration resistance, safety and reliability, and long service life. During the use of air bricks, molten steel has a certain penetration into the air gap of air bricks, so the air permeability of air bricks needs to be tested frequently.

[0004] For example, the patent document with the authorization announcement number CN103196811B and the authorization announcement date April 15, 2015, and the name of which is "A method and device for online detection of air permeability of ladle air bricks", includes an adapter plug-in connector, a connecting hose, a flow detector, a control valve, a pressure-stabilizing gas source, and an air source pipeline connected in sequence. The patent's online detection device for air permeability of ladle air bricks has a simple structure, uses nitrogen or compressed air as the detection gas source, and detects air permeability stably and reliably.

[0005] In the prior art, the air permeability of the air bricks is tested by a pressure-stabilized gas source, and the air bricks that do not meet the requirements are processed; wherein, it is troublesome to maintain a stable pressure of the testing gas source, making the overall device cumbersome and inconvenient to move to the site to test the air bricks. Summary of the invention

[0006] The object of the present invention is to provide an intelligent on-site detection device to solve the above-mentioned deficiencies in the prior art.

[0007] In order to achieve the above object, the present invention provides the following technical solutions:

[0008] An intelligent on-site detection device comprises a main body and a gas-permeable brick for blowing air into a ladle, the gas-permeable brick is provided with an air inlet pipe, the main body is provided with a gas tank, the gas tank is provided with a connecting pipe for connecting the gas-permeable brick air inlet pipe, and the main body is also provided with:

[0009] A plugging and pressurizing mechanism, comprising a plugging component for plugging the connecting pipe and a pressurizing component for increasing the gas pressure in the gas tank; when the plugging component plugs the connecting pipe, the pressurizing component operates to increase the gas pressure in the gas tank;

[0010] A monitoring mechanism is used to monitor the change of gas pressure in the gas tank.

[0011] In the above-mentioned intelligent on-site detection device, the blocking component includes a connecting cavity constructed on the gas tank, the connecting pipe is inserted in the connecting cavity to communicate with the gas tank, and a blocking plate is slidably connected in the connecting cavity.

[0012] In the above-mentioned intelligent on-site detection device, the outer wall of the gas tank is constructed with an extension portion, and the extension portion is provided with a first elastic member for forcing the sealing plate to stay away from the connecting cavity. A limiting rod is slidably connected to the extension portion, and the extension portion is provided with a second elastic member for forcing the limiting rod to be on one side of the sealing plate.

[0013] The above-mentioned intelligent on-site detection device, the boosting component includes a boosting tank fixed on the main body, the boosting tank is provided with a connecting pipe, the connecting pipe is connected to the gas tank, a piston is slidably connected in the boosting tank, and a driving rod is fixed on the piston.

[0014] In the above-mentioned intelligent on-site detection device, a first one-way valve is arranged on the connecting pipe, and the first one-way valve prevents gas from flowing from the gas tank to the booster tank. A second one-way valve is arranged on the booster tank, and the second one-way valve prevents gas from flowing from the booster tank to the outside.

[0015] In the above-mentioned intelligent on-site detection device, a lead screw is rotatably connected to the main body, the lead screw is threadedly connected to the driving rod, a driving motor is fixed to the main body, and the output end of the driving motor is drivingly connected to the lead screw.

[0016] In the above-mentioned intelligent on-site detection device, a first connecting part and a second connecting part are fixed on the driving rod, an inclined plate is fixed on the bottom of the first connecting part, and a wedge block is fixed on the second connecting part.

[0017] In the above-mentioned intelligent on-site detection device, a first baffle is fixed on the blocking plate, and the first baffle is located on the moving stroke of the wedge block; a second baffle is fixed on the limiting rod, and the second baffle is located on the moving stroke of the inclined plate; a wedge surface is constructed on the limiting rod, and the wedge surface is located on the moving stroke of the first baffle.

[0018] In the above-mentioned intelligent on-site detection device, the monitoring mechanism includes a telescopic slot constructed on the gas tank, a telescopic rod is slidably connected in the telescopic slot, and a third elastic member for forcing the telescopic rod to retract into the telescopic slot is provided in the gas tank.

[0019] In the above-mentioned intelligent on-site detection device, the inner wall of the telescopic groove is constructed with an exhaust hole connected to the outside world. When the air pressure in the gas tank increases, the telescopic rod gradually extends out of the telescopic groove until the gas tank is connected to the outside world through the exhaust hole.

[0020] In the above technical scheme, the present invention provides an intelligent on-site detection device, which connects the connecting pipe with the air inlet pipe of the air brick when in use, and then seals the connecting pipe through a sealing component. At the same time, the air pressure in the gas tank can be increased by a booster component. After the air pressure in the gas tank reaches a certain value, the connecting pipe is opened by the blocking component to allow the gas in the gas tank to flow to the air brick through the connecting pipe. During the process, the change of air pressure in the gas tank and the time taken for the air pressure change can be monitored by a monitoring mechanism, so as to detect whether the air permeability of the air brick meets the requirements. In this way, the booster mechanism and the gas tank can be blocked to replace the pressure-stabilizing gas source, so that the device can be brought to the site to detect the air permeability of the air brick. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0022] Figure 1 A schematic diagram of the overall structure provided by an embodiment of the present invention;

[0023] Figure 2 A schematic diagram of the main structure provided for yet another embodiment of the present invention;

[0024] Figure 3 A schematic diagram of the structure of an extension portion provided in yet another embodiment of the present invention;

[0025] Figure 4 A schematic diagram of the structure of a blocking plate provided in yet another embodiment of the present invention;

[0026] Figure 5 A schematic diagram of the structure of a pressurized tank provided in yet another embodiment of the present invention;

[0027] Figure 6 A schematic diagram of a driving rod structure provided by another embodiment of the present invention;

[0028] Figure 7 A schematic diagram of an inclined plate structure provided by another embodiment of the present invention;

[0029] Figure 8 A schematic diagram of the structure of a second connecting portion provided in another embodiment of the present invention;

[0030] Fig. 9 A schematic diagram of a telescopic rod structure provided by another embodiment of the present invention;

[0031] Fig.10 A schematic diagram of a marker block structure provided in yet another embodiment of the present invention.

[0032] Description of reference numerals:

[0033] 1. Main body; 2. Air-permeable brick; 3. Air inlet pipe; 4. Gas tank; 5. Connecting pipe; 6. Ladle; 7. Sealing plate; 8. Extension part; 9. First elastic member; 10. Limiting rod; 11. Second elastic member; 12. Booster tank; 13. Connecting pipe; 14. First one-way valve; 15. Second one-way valve; 16. Piston; 17. Driving rod; 18. Lead screw; 19. Driving motor; 20. First connecting part; 21. Second connecting part; 22. Inclined plate; 23. Wedge block; 24. First baffle; 25. Second baffle; 26. Telescopic rod; 27. Third elastic member; 28. Exhaust hole; 29. ​​Limiting block; 30. Marking block; 31. Locking plate. DETAILED DESCRIPTION

[0034] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0035] Reference Figure 1-10 An embodiment of the present invention provides an intelligent on-site detection device, comprising a main body 1 and a breathable brick 2 for blowing air into a ladle 6, the breathable brick 2 is provided with an air inlet pipe 3, the main body 1 is provided with a gas tank 4, the gas tank 4 is provided with a connecting pipe 5 for connecting the air inlet pipe 3 of the breathable brick 2, the main body 1 is also provided with a blocking and pressurizing mechanism and a monitoring mechanism, the blocking and pressurizing mechanism comprises a blocking component for blocking the connecting pipe 5 and a pressurizing component for increasing the air pressure in the gas tank 4; when the blocking component blocks the connecting pipe 5, the pressurizing component operates to increase the air pressure in the gas tank 4; the monitoring mechanism is used to monitor the change of the air pressure in the gas tank 4.

[0036] Specifically, the ladle 6 is an important equipment for containing molten steel, and is responsible for transporting molten steel and secondary smelting of molten steel; a breathable brick 2 is generally provided at the bottom of the ladle 6, and an air inlet pipe 3 is provided at the bottom of the air brick 2 to blow gas (such as argon) into the ladle 6 through the air inlet pipe 3 and the air brick 2, thereby enhancing the mixing and smelting effect of the molten steel through the bottom blowing of the ladle 6; during the use of the air brick 2, the molten steel has a certain penetration into the air gap of the air brick 2, which will affect the air permeability of the air brick 2. For this reason, the air permeability of the air brick 2 needs to be frequently tested. The above are all existing technologies and will not be repeated here. The innovation of the embodiment of the present invention is that a gas tank 4 is arranged on the main body 1, and a connecting pipe 5 is connected to the gas tank 4, and the connecting pipe 5 is communicated with the air inlet pipe 3 at the bottom of the air-permeable brick 2 (the connecting pipe 5 can be arranged as a hose, and the connecting pipe 5 and the air inlet pipe 3 can be connected by interference fitting); a blocking component, a boosting component and a monitoring mechanism are also arranged on the main body 1, and the blocking component can adopt a valve structure to block or open the connecting pipe 5 through the blocking component, and the boosting component can adopt an air pump structure in the prior art, which can increase the air pressure in the gas tank 4 during operation, and the monitoring mechanism can adopt a pressure gauge and other structures in the prior art to monitor the pressure change in the gas tank 4 during the detection of the air-permeable brick 2; after the connecting pipe 5 and the air inlet pipe 3 are connected, the blocking and boosting mechanism is operated to block or open the connecting pipe 5 through the blocking component The tube 5 is blocked, and the gas tank 4 is pressurized by the boosting component. After the air pressure in the gas tank 4 reaches a certain value, the boosting component stops running, and then the connecting tube 5 is opened by the blocking component to allow the gas in the gas tank 4 to be discharged through the connecting tube 5, the air inlet pipe 3 and the air-permeable brick 2. Since the air permeability of each air-permeable brick 2 is different, the change in the air pressure in the gas tank 4 and the time required for the change are also different during the detection. For this reason, the change in the air pressure in the gas tank 4 can be monitored by a monitoring mechanism, and the air permeability of the air-permeable brick 2 is deduced by the change value and the time required for the change, so as to detect whether the air permeability of the air-permeable brick 2 meets the requirements; in this way, the air-permeable brick 2 can be detected by blocking the boosting mechanism and the gas tank 4 instead of the pressure-stabilizing air source in the prior art, so that the device can be brought to the site for use.

[0037] In another embodiment provided by the present invention, as an alternative solution for sealing the connecting pipe 5 of the above-mentioned valve structure, preferably, the sealing assembly includes a connecting cavity constructed on the gas tank 4, the connecting pipe 5 is inserted in the connecting cavity to communicate with the gas tank 4, and a sealing plate 7 is slidably connected in the connecting cavity. Specifically, the connecting cavity is constructed at the position where the gas tank 4 is connected to the connecting pipe 5, and an opening is constructed at the top of the connecting cavity. The sealing plate 7 is vertically slidably connected in the connecting cavity, and the top of the sealing plate 7 exposes the connecting cavity through the opening. In this way, the sealing plate 7 can seal the connecting cavity when sliding in the connecting cavity, so as to achieve the purpose of sealing the connecting pipe 5, and try to prevent the higher pressure gas in the gas tank 4 from being discharged through the connecting pipe 5.

[0038] Furthermore, the outer wall of the gas tank 4 is constructed with an extension portion 8, and the extension portion 8 is provided with a first elastic member 9 for forcing the sealing plate 7 away from the connecting cavity. The extension portion 8 is slidably connected with a limiting rod 10, and the extension portion 8 is provided with a second elastic member 11 for forcing the limiting rod 10 to be on one side of the sealing plate 7. Specifically, the extension part 8 is constructed as an L-shape as a whole, with one end of the extension part 8 located on one side of the blocking plate 7 and the other end located above the blocking plate 7; the first elastic member 9 can adopt a spring structure in the prior art, one end of which is fixed on the extension part 8 and the other end is fixed on the blocking plate 7, so as to force the blocking plate 7 to move out of the connecting cavity through the first elastic member 9, thereby opening the connecting pipe 5; a through groove is constructed on the extension part 8, and the limiting rod 10 is slidably connected in the through groove, so that the limiting rod 10 can slide along the through groove to approach or move away from the blocking plate 7; the second elastic member 11 can adopt a spring structure in the prior art, one end of which is fixed on the extension part 8 and the other end is fixed on the limiting rod 10, so as to force the limiting rod 10 to be on the side of the blocking plate 7 through the second elastic member 11; the effect of such a setting is that When it is necessary to seal the connecting pipe 5, press the sealing plate 7 to move it below the limiting rod 10, and then the limiting rod 10 can be driven by the second elastic member 11 to contact the top wall of the sealing plate 7, so as to limit the position of the sealing plate 7 by the limiting rod 10, thereby sealing the connecting cavity and isolating the gas tank 4 and the connecting pipe 5; when it is necessary to open the connecting pipe 5, move the limiting rod 10 to keep it away from the sealing plate 7 (in the process, the second elastic member 11 is stretched, and then the limiting rod 10 can be automatically reset under the action of the second elastic member 11), thereby releasing the restriction of the limiting rod 10 on the sealing plate 7, so that the sealing plate 7 can be away from the connecting cavity under the action of the first elastic member 9, thereby connecting the gas tank 4 and the connecting pipe 5; and then the air permeability of the air brick 2 is detected through the connecting pipe 5.

[0039] As an alternative to the above-mentioned method of increasing the air pressure in the gas tank 4 by means of an air pump structure, preferably, the boosting assembly includes a boosting tank 12 fixed to the main body 1, a connecting pipe 13 is provided on the boosting tank 12, the connecting pipe 13 is connected to the gas tank 4, a piston 16 is slidably connected in the boosting tank 12, and a driving rod 17 is fixed on the piston 16. A first one-way valve 14 is provided on the connecting pipe 13, and the first one-way valve 14 prevents the gas from flowing from the gas tank 4 to the boosting tank 12, and a second one-way valve 15 is provided on the boosting tank 12, and the second one-way valve 15 prevents the gas from flowing from the boosting tank 12 to the outside. Specifically, one end of the boost tank 12 is constructed as an opening, and the driving rod 17 is located in the opening and arranged along the axial direction of the boost tank 12; one end of the connecting pipe 13 is connected to the end of the boost tank 12 (the end away from the opening), and the other end is connected to the gas tank 4, so that the boost tank 12 and the gas tank 4 are connected through the connecting pipe 13; the second one-way valve 15 is located at the end of the boost tank 12 away from the opening, and when the piston 16 moves toward the opening, the outside air can be drawn in through the second one-way valve 15; a dynamic sealing structure is provided between the piston 16 and the inner wall of the boost tank 12, and a linear driving structure can be provided on the main body 1 to drive the driving rod 17 to move along the axial direction of the boost tank 12. The linear driving structure can select a cylinder or hydraulic lever structure in the prior art, which will not be repeated here. The purpose of such a setting is that when in use, the connecting pipe 5 is first blocked by the blocking component, and then the piston 16 is driven by the driving rod 17 to extend into the inside of the boosting tank 12 (that is, the piston 16 moves to the side away from the opening in the boosting tank 12), so as to use the piston 16 to push the gas in the boosting tank 12 into the gas tank 4. During the process, the gas can enter the gas tank 4 through the first one-way valve 14, but cannot flow to the outside through the second one-way valve 15, thereby increasing the air pressure in the gas tank 4, and then opening the connecting pipe 5 can make the gas in the gas tank 4 flow to the air-permeable brick 2. After completing the inspection of the air-permeable brick 2, the piston 16 is driven by the driving rod 17 to move away from the boosting tank 12 (that is, the piston 16 moves to the side close to the opening in the boosting tank 12), so as to extract the outside air through the second one-way valve 15, but cannot extract the gas in the gas tank 4 through the first one-way valve 14, thereby extracting the outside gas into the boosting tank 12, which is convenient for the next pressurization operation of the gas tank 4.

[0040] As an alternative to the above-mentioned method of driving the drive rod 17 to move by a pneumatic cylinder or a hydraulic cylinder, preferably, a lead screw 18 is rotatably connected to the main body 1, and the lead screw 18 is threadedly connected to the drive rod 17. A drive motor 19 is fixed to the main body 1, and the output end of the drive motor 19 is transmission-connected to the lead screw 18. Specifically, the lead screw 18 is threadedly connected to the drive rod 17 through a ball screw 18, the lead screw 18 is arranged along the axial direction of the drive rod 17, and the lead screw 18 is rotatably connected to the main body 1, that is, the lead screw 18 can only rotate on the main body 1, but cannot be axially displaced on the main body 1; the cross-section of the piston 16 is a non-rotating body, and the inner wall of the boost tank 12 is adapted to the outer wall of the piston 16, so that the piston 16 can only move axially along the boost tank 12, but cannot rotate in the boost tank 12; the output end of the drive motor 19 and one end of the lead screw 18 can be fixedly connected, or can be connected by a pulley transmission structure, so that the lead screw 18 can be driven to rotate by the drive motor 19; the effect of such a setting is that when the drive motor 19 drives the lead screw to rotate, the drive rod 17 can be driven to move along the lead screw 18 through the lead screw 18, thereby driving the piston 16 to move along the boost tank 12, and then pushing the gas in the boost tank 12 into the gas tank 4, or sucking the outside air into the boost tank 12.

[0041] In another embodiment provided by the present invention, further, the driving rod 17 is fixed with a first connecting portion 20 and a second connecting portion 21, the bottom of the first connecting portion 20 is fixed with an inclined plate 22, and the second connecting portion 21 is fixed with a wedge block 23. The blocking plate 7 is fixed with a first baffle 24, and the first baffle 24 is located on the moving stroke of the wedge block 23. The limiting rod 10 is fixed with a second baffle 25, and the second baffle 25 is located on the moving stroke of the inclined plate 22. The limiting rod 10 is configured with a wedge surface, and the wedge surface is located on the moving stroke of the first baffle 24.Specifically, the first connecting portion 20 and the second connecting portion 21 are both fixed to the bottom of the driving rod 17, and the first connecting portion 20 is located on the side of the second connecting portion 21 away from the piston 16; the first baffle 24 is fixed to the top of the blocking plate 7. In this embodiment, one end of the first elastic member 9 is fixed to the first baffle 24, and the other end is fixed to the extension portion 8, so that the first baffle 24 and the blocking plate 7 are forced to move away from the connecting cavity synchronously through the first elastic member 9; the second baffle 25 is fixed to one end of the limiting rod 10 away from the blocking plate 7. In this embodiment, the second elastic member 11 is sleeved on the limiting rod 10, and one end of the second elastic member 11 is fixed to the second baffle 25. The other end is fixed on the extension portion 8, and the second elastic member 11 is in a natural state (neither compressed nor stretched). The second elastic member 11 can force the second baffle plate 25 and the limiting rod 10 to be in a certain position (that is, on the side of the blocking plate 7 close to the extension portion 8); the corner between the side of the limiting rod 10 close to the blocking plate 7 and the top wall of the limiting rod 10 is constructed as a wedge-shaped surface. When the blocking plate 7 moves down to block the connecting cavity, the first baffle plate 24 moves down synchronously to resist the wedge-shaped surface of the limiting rod 10, thereby forcing the limiting rod 10 to move away from the blocking plate 7 and stretching the second elastic member 11 until the blocking plate 7 blocks the connecting cavity. 4 moves to the bottom of the limiting rod 10, at which time the limiting rod 10 can be forced to approach the blocking plate 7 by the second elastic member 11 (the second elastic member 11 is reset from the stretched state to the natural state to drive the blocking plate 7 to reset), so that the limiting rod 10 contacts the top wall of the first baffle 24 to limit the position of the blocking plate 7; the inclined plate 22 is horizontally fixed to the bottom of the first connecting portion 20, the first connecting portion 20 is above the second baffle 25, the inclined plate 22 and the second elastic member 11 are at different heights, and the inclined plate 22 will not interfere with the second elastic member 11 when contacting the second baffle 25; during the process of the inclined plate 22 reciprocating with the driving rod 17 During the process, the second baffle plate 25 can be resisted by both side walls of the inclined plate 22. When the driving rod 17 extends out of the boost tank 12, a side wall of the inclined plate 22 away from the piston 16 resists the second baffle plate 25, so as to force the second baffle plate 25 and the limiting rod 10 away from the blocking plate 7. At this time, the limiting rod 10 resists on the top wall of the first baffle plate 24 to keep the blocking plate 7 in a state of blocking the connecting cavity. When the inclined plate 22 forces the limiting rod 10 to move away from the blocking plate 7, the limiting rod 10 can be separated from the first baffle plate 24, thereby releasing the restriction of the limiting rod 10 on the blocking plate 7, so that the blocking plate 7 can open the connecting cavity (such as) under the action of the first elastic member 9. Figure 72 is a schematic diagram showing the opening of the connection cavity by the inclined plate 22); the wedge block 23 is fixed on the second connection portion 21, the wedge block 23 and the first elastic member 9 are both above the first baffle 24, and the wedge block 23 and the first elastic member 9 (and the extension 8) are arranged alternately, that is, the wedge block 23 will not interfere with the first elastic member 9 (and the extension 8) when the first baffle 24 contacts each other; when the drive rod 17 extends out of the boost tank 12, the wedge block 23 moves to the position of the first baffle 24 and contacts the first baffle 24 (such as Figure 8 As shown, the wedge block 23 is about to contact the first baffle plate 24), so as to force the first baffle plate 24 to overcome the elastic force of the first elastic member 9 and drive the blocking plate 7 to move downward, thereby blocking the connecting cavity through the blocking plate 7. During the process, the limiting rod 10 avoids and contacts the top wall of the first baffle plate 24 again to limit the position of the blocking plate 7; when the driving rod 17 extends into the booster tank 12, the inclined plate 22 is reset with the driving rod 17. At this time, the inclined plate 22 can contact the second baffle plate 25 again through a side wall of the inclined plate 22 close to the piston 16. At this time, the inclined plate 22 can force the second baffle plate 25 and the limiting rod 10 to be slightly close to the blocking plate 7, until the inclined plate 22 passes over the second baffle plate 25, and the limiting rod 10 is reset and maintains contact with the first baffle plate 24.

[0042] In this way, at the end of the stroke when the driving rod 17 drives the piston 16 away from the boost tank 12 (that is, the driving rod 17 extends out of the boost tank 12), the wedge block 23 forces the first baffle 24 to move downward to block the connection chamber through the blocking plate 7, and at the same time, the limiting rod 10 avoids the first baffle 24 and contacts the top of the first baffle 24; in the stroke when the driving rod 17 drives the piston 16 to extend into the boost tank 12, the piston 16 pushes the gas in the boost tank 12 into the gas tank 4 to increase the gas pressure of the gas tank 4. At the end of the stroke when the driving rod 17 drives the piston 16 to extend into the boost tank 12, the inclined plate 22 forces the second baffle 25 and the limiting rod 10 to approach the first baffle 24; at the beginning of the stroke when the driving rod 17 drives the piston 16 away from the boost tank 12, the inclined plate 22 forces the second baffle 25 and the limiting rod 10 to move away from the first baffle 24 to release the restriction of the limiting rod 10 on the blocking plate 7, thereby opening the connection chamber to detect the air permeable brick 2.

[0043] The advantage is that a reciprocating stroke of the driving rod 17 can drive the piston 16 and the sealing plate 7 to operate alternately. When the driving rod 17 is at one end of its stroke close to the boost tank 12, there is gas with higher pressure in the gas tank 4, and the sealing plate 7 is in a state of sealing the connecting pipe 5. At this time, the connecting pipe 5 is connected to the air inlet pipe 3 of the air-permeable brick 2 to perform an air permeability test. When performing an air permeability test, the driving rod 17 is driven to move to the side of its stroke away from the boost tank 12 (during the movement, the boost tank 12 draws outside air through the second one-way valve 15). At the beginning of the movement, the inclined plate 22 is against the second baffle 25 to release the air. The blocking plate 7 is restricted so that the blocking plate 7 opens the connecting pipe 5 to allow the gas in the gas tank 4 to flow to the air-permeable brick 2 until the driving rod 17 moves to the end of its stroke away from the boosting tank 12, and then the wedge block 23 contacts the first baffle 24 to force the blocking plate 7 to block the connecting pipe 5 again, thereby completing the air permeability test of the air-permeable brick 2; then the driving rod 17 is reset to push the gas in the boosting tank 12 into the gas tank 4 through the piston 16, until the driving rod 17 is reset, and the inclined plate 22 contacts and passes over the second baffle 25, so as to facilitate the next operation to release the restriction of the blocking plate 7 by the limiting rod 10 through the inclined plate 22 again.

[0044] In another embodiment provided by the present invention, further, the monitoring mechanism includes a telescopic groove constructed on the gas tank 4, a telescopic rod 26 is slidably connected in the telescopic groove, and a third elastic member 27 for forcing the telescopic rod 26 to retract into the telescopic groove is provided in the gas tank 4. Specifically, a telescopic groove is constructed on the outer wall of the gas tank 4, so that the gas tank 4 can be connected to the outside through the telescopic groove. A dynamic sealing structure is provided between the telescopic rod 26 and the telescopic groove. When the telescopic rod 26 slides in the telescopic groove, the telescopic groove can be blocked by the telescopic rod 26 to prevent the gas in the gas tank 4 from being discharged through the telescopic groove as much as possible; the third elastic member 27 can use a spring structure in the prior art, one end of which is fixed to the inner wall of the gas tank 4, and the other end is located in the telescopic groove and fixed to the telescopic rod 26, so that the telescopic rod 26 is forced to be retracted into the telescopic groove through the third elastic member 27; the telescopic rod 26 has a certain sliding stroke in the telescopic groove. When the air pressure in the gas tank 4 is the same as the atmospheric pressure, the telescopic rod 26 is located at one end close to the gas tank 4 under the action of the third elastic member 27. When the air pressure in the gas tank 4 gradually increases, the telescopic rod 26 gradually overcomes the elastic force of the third elastic member 27 and gradually extends out of the telescopic groove. In this way, a displacement sensor can be set in the telescopic groove. The air pressure in the gas tank 4 can be determined by monitoring the displacement of the telescopic rod 26 through the displacement sensor. The change of the air pressure in the gas tank 4 can be determined by monitoring the change of the position of the telescopic rod 26. In this way, whether the air permeability of the air brick 2 meets the requirements can be determined based on the change of the position of the telescopic rod 26 and the time required for the change.

[0045] In the above embodiment, when the air permeability of the air brick 2 is different, after the wedge block 23 forces the blocking plate 7 to block the connecting pipe 5, the air pressure in the gas tank 4 is also different, and then when the gas in the booster tank 12 is pushed to the gas tank 4 again by the piston 16, the air pressure in the gas tank 4 is also different. Preferably, the inner wall of the telescopic groove is configured with an exhaust hole 28 connected to the outside world, and in the process of increasing the air pressure in the gas tank 4, the telescopic rod 26 gradually extends out of the telescopic groove until the gas tank 4 is connected to the outside world through the exhaust hole 28. Specifically, in the present embodiment, an exhaust hole 28 is constructed on the side of the telescopic groove away from the gas tank 4. When the air pressure in the gas tank 4 reaches a certain degree (value), the degree to which the telescopic rod 26 stretches the third elastic member 27 away from the gas tank 4 (that is, the displacement distance) is certain. In the process of the piston 16 pushing the gas into the gas tank 4, the telescopic rod 26 gradually moves away from the gas tank 4 until the exhaust hole 28 is exposed, so that the gas tank 4 can be connected to the outside through the telescopic groove and the exhaust hole 28, thereby discharging excess gas in the gas tank 4. After the excess gas in the gas tank 4 is discharged, the telescopic rod 26 will reset and block the exhaust hole 28 again. This repetition can maintain a certain degree (value) of air pressure in the gas tank 4 (at this time, the air pressure in the gas tank 4 is the air pressure required for detecting the air permeability of the air brick 2), so that the air pressure in the gas tank 4 can be kept consistent during each detection.

[0046] Furthermore, two limit blocks 29 are fixed at the bottom of the first connecting part 20, and a marking block 30 is fixed above the telescopic rod 26. When the driving rod 17 moves away from the booster tank 12 at a uniform speed, the two limit blocks 29 approach the telescopic rod 26 at a uniform speed until the two limit blocks 29 move to above the telescopic rod 26. If the marking block 30 is located between the two limit blocks 29, the air permeability of the air brick 2 meets the requirements. Specifically, in this embodiment, the driving motor 19 can drive the lead screw 18 to rotate at a constant speed, thereby driving the driving rod 17 and the piston 16 to move at a constant speed in the boost tank 12, so that the time required for the inclined plate 22 to open the connecting pipe 5 until the wedge block 23 blocks the connecting pipe 5 again is certain. During this process, the air-permeable brick 2 whose air permeability is within a qualified range can discharge a certain range of gas, that is, during the detection process, the displacement of the telescopic rod 26 is within a certain range, and the air permeability of the corresponding air-permeable brick 2 is qualified. For this purpose, two limit blocks 29 and a marking block 30 are provided; the two limit blocks 29 and the marking block 30 are on the same horizontal plane, When the driving rod 17 moves to the end away from the boost tank 12, if the marking block 30 is between the two limit blocks 29, it means that the displacement of the telescopic rod 26 is within the above-mentioned qualified range, and the air permeability of the corresponding air brick 2 is qualified; if the marking block 30 is on the side where the two limit blocks 29 are away from each other, it means that the displacement of the telescopic rod 26 is not within the above-mentioned qualified range, and the air permeability of the corresponding air brick 2 is unqualified; if the marking block 30 is on the side where the two limit blocks 29 are close to the gas tank 4, it means that the air permeability of the air brick 2 is too large; if the marking block 30 is on the side where the two limit blocks 29 are away from the gas tank 4, it means that the air permeability of the air brick 2 is too small.

[0047] Preferably, the two limit blocks 29 and the opposite ends of the marking block 30 are both constructed as acute angle structures, so that when the positions of the marking block 30 and the locking plate 31 conflict, they can conflict with each other to force the telescopic rod 26 to avoid in the telescopic groove (the telescopic rod 26 continues to be affected by the third elastic member 27 after avoiding). In this way, a sensor can be set between the two locking plates 31, so as to determine whether the air permeable brick 2 is qualified based on whether the marking block 30 is sensed between the two locking plates 31.

[0048] Furthermore, the two locking plates 31 are each configured with an engagement groove on one side away from each other, and the two engagement grooves are both rotatably connected with a locking plate 31, and a torsion spring is provided between the locking plate 31 and the corresponding locking plate 31, and the torsion spring can force the locking plate 31 to move away from the corresponding locking plate 31. Specifically, the locking plate 31 has a certain rotation angle in the engagement groove, such as Fig.10As shown, the locking plate 31 is expanded to the limit state under the action of the torsion spring; with such a configuration, when the air-permeable brick 2 tested is unqualified, the marking block 30 is outside the two locking plates 31, and when the locking plates 31 and the marking block 30 move relative to each other, the locking plates 31 can be resisted by the marking block 30 and approach the corresponding locking plates 31, until the driving rod 17 moves to the end away from the boost tank 12, the locking plate 31 is separated from the marking block 30, so that the locking plate 31 can be expanded, and at this time the marking block 30 is in the moving stroke of the locking plate 31, as shown in FIG. This can limit the direct reset of the driving rod 17 through the locking plate 31 and the marking block 30, thereby warning the operator to operate the detection device after processing the corresponding air brick 2 and the locking plate 31. First, an external force (such as magnetic force or an additional thrust) is used to force the locking plate 31 to fit the locking plate 31, and then the driving rod 17 is reset to prepare for the next detection; conversely, when the tested air brick 2 is qualified, the marking block 30 is between the two locking plates 31, and then the driving rod 17 can be directly reset without being affected by the locking plate 31.

[0049] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An intelligent on-site detection device, comprising a main body and a gas-permeable brick for blowing air into a ladle, the gas-permeable brick is provided with an air inlet pipe, the main body is provided with a gas tank, the gas tank is provided with a connecting pipe for connecting the gas-permeable brick air inlet pipe, characterized in that: The main body is also provided with: A plugging and pressurizing mechanism, comprising a plugging component for plugging the connecting pipe and a pressurizing component for increasing the gas pressure in the gas tank; when the plugging component plugs the connecting pipe, the pressurizing component operates to increase the gas pressure in the gas tank; A monitoring mechanism is used to monitor the change of gas pressure in the gas tank.

2. An intelligent on-site detection device according to claim 1, characterized in that: The blocking assembly comprises a connecting cavity constructed on the gas tank, the connecting pipe is inserted in the connecting cavity to communicate with the gas tank, and a blocking plate is slidably connected in the connecting cavity.

3. An intelligent on-site detection device according to claim 2, characterized in that: The outer wall of the gas tank is configured with an extension portion, on which a first elastic member is provided for forcing the blocking plate to stay away from the connecting cavity, and a limiting rod is slidably connected to the extension portion, on which a second elastic member is provided for forcing the limiting rod to be on one side of the blocking plate.

4. An intelligent on-site detection device according to claim 3, characterized in that: The boosting assembly comprises a boosting tank fixed on the main body, a connecting pipe is arranged on the boosting tank, the connecting pipe is connected with the gas tank, a piston is slidably connected in the boosting tank, and a driving rod is fixed on the piston.

5. The intelligent on-site detection device according to claim 4, characterized in that: The connecting pipe is provided with a first one-way valve, which prevents gas from flowing from the gas tank to the booster tank. The booster tank is provided with a second one-way valve, which prevents gas from flowing from the booster tank to the outside.

6. The intelligent on-site detection device according to claim 4, characterized in that: A lead screw is rotatably connected to the main body, and the lead screw is threadedly connected to the driving rod. A driving motor is fixed to the main body, and the output end of the driving motor is drivingly connected to the lead screw.

7. The intelligent on-site detection device according to claim 5, characterized in that: The driving rod is fixed with a first connecting portion and a second connecting portion, an inclined plate is fixed at the bottom of the first connecting portion, and a wedge block is fixed on the second connecting portion.

8. An intelligent on-site detection device according to claim 7, characterized in that: A first baffle is fixed on the blocking plate, and the first baffle is located on the moving stroke of the wedge block. A second baffle is fixed on the limiting rod, and the second baffle is located on the moving stroke of the inclined plate. A wedge surface is constructed on the limiting rod, and the wedge surface is located on the moving stroke of the first baffle.

9. An intelligent on-site detection device according to claim 8, characterized in that: The monitoring mechanism comprises a telescopic slot constructed on the gas tank, a telescopic rod is slidably connected in the telescopic slot, and a third elastic member for forcing the telescopic rod to be retracted into the telescopic slot is arranged in the gas tank.

10. An intelligent on-site detection device according to claim 9, characterized in that: The inner wall of the telescopic groove is configured with an exhaust hole connected to the outside. During the process of increasing the air pressure in the gas tank, the telescopic rod gradually extends out of the telescopic groove until the gas tank is connected to the outside through the exhaust hole.

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