Chemical plant internal waste liquid collection and treatment device

Abstract

The application discloses a kind of chemical equipment inside waste liquid collection processing equipment, it is related to chemical waste liquid processing technical field, including equipment shell, load pressure liquid discharge mechanism, the load pressure liquid discharge mechanism includes load pressure liquid discharge pipe, the load pressure liquid discharge pipe has two and top end is fixedly installed in the middle of connecting plate by insertion, the middle of the load pressure liquid discharge pipe is fixedly installed in the inside bottom end of equipment shell by insertion.The application drives liquid push plate to continuously push waste liquid on the bottom end of equipment shell into liquid discharge exhaust pipe, speeds up the discharge speed of waste liquid discharged by self-weight, and when liquid push plate reciprocates, continuously air cylinder is pumped and inflated by sealing air bag, driving lift frame continuously reciprocating lifting, so that rack moves with lift frame, to drive liquid discharge wheel to reverse, so that the waste liquid in load pressure liquid discharge pipe is quickly discharged, improve waste liquid discharge efficiency, while avoiding waste liquid counterflow in pipeline to cause damage to equipment.

Description

Technical Field

[0001] This invention relates to the field of chemical waste treatment technology, specifically to a waste collection and treatment device for internal chemical equipment. Background Technology

[0002] In the industrial sector, especially in the photovoltaic solar energy and semiconductor industries, hazardous chemicals are used. Therefore, the safe use of chemicals is of paramount importance. As a result, equipment for transporting chemicals has emerged. At the same time, chemical equipment generates waste liquid during use. This waste liquid may also have certain acidity or alkalinity, so the treatment of waste liquid is quite important. Usually, pipelines are installed inside the equipment to collect and discharge the waste liquid inside the equipment. Chemical equipment typically has only one waste discharge line and a single equipment shell. This line connects to other internal equipment such as gas-liquid separators, filters, and pumps, as well as internal tank connector boxes and exhaust ducts. Because there is a significant difference between the line waste discharge and the internal exhaust duct waste discharge, the line waste discharge is pressurized while the internal exhaust duct waste discharge is unpressurized. This can easily lead to backflow in the line, causing damage to the equipment. Summary of the Invention

[0003] The purpose of this invention is to provide a waste liquid collection and treatment device for chemical equipment to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a waste liquid collection and treatment device for chemical equipment, comprising a housing, wherein a partition is fixedly installed in the middle of the bottom of the housing by welding, and a connecting plate is fixedly installed at the top of the partition and the top left side of the housing by bolts; The self-weight liquid drainage and ventilation mechanism includes two liquid drainage and ventilation pipes, which are inserted and fixedly installed inside the bottom of the equipment housing and located at the end away from the connecting plate. A reciprocating mechanism, the reciprocating mechanism including a limiting frame, there are two limiting frames and they are respectively fixedly installed inside the bottom of the equipment housing by bolts, and are located below the connecting plate near the partition plate; A pressure-carrying liquid drainage mechanism, comprising two pressure-carrying liquid drainage pipes, the top ends of which are fixedly installed in the middle of a connecting plate by insertion, and the middle of which is fixedly installed in the bottom of the equipment housing by insertion. A lifting mechanism, comprising a support frame, which is bolted to the bottom of the equipment housing and located below the connecting plate.

[0005] Preferably, the self-weight drainage and ventilation mechanism includes a ramp plate, a pusher plate, a sealing airbag, and push rods. The ramp plate is fixedly installed at the bottom of the equipment housing away from the connecting plate by bolts. The pusher plate is slidably installed at the bottom of the equipment housing. The two ends of the sealing airbag are respectively fixedly bonded to the side walls of the partition and the pusher plate. There are two push rods, which are respectively inserted and movably installed in the partition and in the sealing airbag. The end of the push rod located in the sealing airbag is fixedly installed on the side of the pusher plate near the partition by bolts.

[0006] Preferably, the reciprocating mechanism includes a slider, a first gear, and a reciprocating plate. The slider is fixedly mounted on the end of the push rod away from the push plate by bolts. The slider is slidably mounted inside the top of the limiting frame. There are two first gears, which are respectively movably mounted on the bottom of the front and rear side walls of the equipment housing by bearings. The end of the reciprocating plate near the partition is movably mounted on the slider by a rotating shaft. The end of the reciprocating plate away from the slider is movably mounted on the edge of the first gear away from its center by a rotating shaft.

[0007] Preferably, the reciprocating mechanism includes a dual-axis motor, a transmission shaft, and a second gear. The dual-axis motor is fixedly installed inside the equipment housing at the bottom end away from the liquid pusher plate by bolts. There are two transmission shafts, which are respectively fixedly installed on the two output shafts of the dual-axis motor by bolts. There are two second gears, which are respectively fixedly installed on the two transmission shafts at the ends away from the dual-axis motor by bolts. The second gear and the first gear are connected by meshing.

[0008] Preferably, the pressure-carrying drainage mechanism includes an upper horizontal shaft, a lower horizontal shaft, and drainage wheels. The upper horizontal shaft is inserted and movably installed in one end of the two pressure-carrying drainage pipes located inside the equipment housing. The lower horizontal shaft is inserted and movably installed in one end of the two pressure-carrying drainage pipes located outside the equipment housing. There are four drainage wheels, which are respectively fixedly sleeved on the sections of the two upper horizontal shafts and the two lower horizontal shafts located inside the pressure-carrying drainage pipes by bolts.

[0009] Preferably, the pressure-carrying drainage mechanism includes a third gear, a chain, and a fourth gear. There are two third gears, which are respectively bolted to the middle section of the upper and lower horizontal shafts located between the two pressure-carrying drainage pipes. The chain is movably engaged with the two third gears. There are two fourth gears, which are respectively bolted to the middle section of the upper horizontal shaft located between the two pressure-carrying drainage pipes, and are located on both sides of the upper third gear.

[0010] Preferably, the lifting mechanism includes an air cylinder, air pipes, a piston, and a lifting cylinder. The air cylinder is fixedly installed inside the top of the support frame by bolts. There are two air pipes, both of which are fixedly installed at the top of the air cylinder by insertion, and both of which are fixedly installed at the bottom of the partition by insertion, and communicate with the inside of the sealed airbag. The piston is slidably installed inside the air cylinder. The lifting cylinder is slidably installed at the bottom of the air cylinder by insertion, and the top of the lifting cylinder is fixedly installed at the middle of the bottom of the piston by bolts.

[0011] Preferably, the lifting mechanism includes a lifting frame, a support rod, a return spring, and a rack. The lifting frame is bolted to the bottom end of the lifting cylinder. The bottom end of the support rod is bolted to the inner bottom end of the equipment housing. The support rod is inserted and movably installed at the end of the lifting frame near the partition. The support rod is inserted and movably installed inside the lifting cylinder. The return spring is movably sleeved on the outside of the support rod and is located between the bottom end of the lifting frame and the inner bottom end of the equipment housing. There are two racks, which are bolted to the front and rear ends of the lifting frame away from the partition, respectively. The racks are movably connected to the fourth gear through meshing.

[0012] Compared with the prior art, the beneficial effects of the present invention are: This invention uses a pusher plate to continuously push waste liquid from the bottom of the equipment housing into the drain pipe, accelerating the discharge speed of waste liquid by its own weight. As the pusher plate moves back and forth, the air cylinder is continuously pumped and inflated by a sealed airbag, driving the lifting frame to move back and forth. This causes the rack to follow the lifting frame, thereby driving the drain wheel to rotate in both directions. This allows the waste liquid in the pressurized drain pipe to be discharged quickly, improving the waste liquid discharge efficiency while preventing backflow of waste liquid in the pipeline from damaging the equipment. Attached Figure Description

[0013] Figure 1 A schematic diagram of the overall structure is provided for embodiments of the present invention; Figure 2 This is a schematic diagram of the internal structure of the device housing provided in an embodiment of the present invention; Figure 3 This is a partial cross-sectional schematic diagram of the gravity-fed liquid drainage and ventilation mechanism provided in an embodiment of the present invention; Figure 4 This is a schematic diagram showing the connection between the gravity-fed liquid drainage and ventilation mechanism and the reciprocating mechanism provided in an embodiment of the present invention; Figure 5 This is a partial cross-sectional structural diagram of the pressure-carrying liquid discharge mechanism provided in an embodiment of the present invention; Figure 6 This is a partial cross-sectional structural diagram of the lifting mechanism provided in an embodiment of the present invention.

[0014] In the diagram: 1. Equipment housing; 2. Partition plate; 3. Self-weight drainage and ventilation mechanism; 301. Drainage and ventilation pipe; 302. Inclined plate; 303. Push plate; 304. Sealing airbag; 305. Push rod; 4. Reciprocating mechanism; 401. Limiting frame; 402. Slider; 403. First gear; 404. Reciprocating plate; 405. Dual-shaft motor; 406. Drive shaft; 407. Second gear; 5. Pressure-carrying drain. 501. Liquid handling mechanism; 502. Upper horizontal shaft; 503. Lower horizontal shaft; 504. Liquid discharge wheel; 505. Third gear; 506. Chain; 507. Fourth gear; 6. Lifting mechanism; 601. Support frame; 602. Air cylinder; 603. Air pipe; 604. Piston; 605. Lifting cylinder; 606. Lifting frame; 607. Support rod; 608. Return spring; 609. Rack. Detailed Implementation

[0015] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0016] Please see Figures 1 to 6 The present invention provides a technical solution: a waste liquid collection and treatment device inside a chemical equipment, including an equipment shell 1, a partition 2 is fixedly installed in the middle of the bottom of the equipment shell 1 by welding, and a connecting plate is fixedly installed between the top of the partition 2 and the top left side of the equipment shell 1 by bolts. The self-weight liquid drainage and ventilation mechanism 3 includes a liquid drainage and ventilation pipe 301. There are two liquid drainage and ventilation pipes 301, which are inserted and fixedly installed inside the bottom of the equipment housing 1 and located at the end away from the connecting plate. The reciprocating mechanism 4 includes a limit frame 401. There are two limit frames 401, which are fixedly installed inside the bottom of the equipment housing 1 by bolts and are located below the connecting plate near the partition plate 2. The pressure-carrying liquid drainage mechanism 5 includes a pressure-carrying liquid drainage pipe 501. There are two pressure-carrying liquid drainage pipes 501, and their top ends are fixedly installed in the middle of the connecting plate by insertion. The middle of the pressure-carrying liquid drainage pipe 501 is fixedly installed in the bottom of the inner part of the equipment housing 1 by insertion. The lifting mechanism 6 includes a support frame 601, which is fixedly installed at the bottom of the equipment housing 1 by bolts and is located below the connecting plate.

[0017] The gravity-fed liquid drainage and ventilation mechanism 3 includes a ramp plate 302, a liquid-pushing plate 303, a sealing airbag 304, and push rods 305. The ramp plate 302 is fixedly installed inside the bottom of the equipment housing 1 away from the connecting plate by bolts. The liquid-pushing plate 303 is slidably installed inside the bottom of the equipment housing 1. The two ends of the sealing airbag 304 are respectively fixedly bonded to the side walls of the partition plate 2 opposite to the liquid-pushing plate 303. There are two push rods 305, which are respectively inserted and movably installed inside the partition plate 2. The push rod 305 is installed inside the sealing airbag 304. One end of the push rod 305 inside the sealing airbag 304 is fixed to the side of the push plate 303 near the partition plate 2 by bolts. The waste liquid flows into the drain pipe 301 by its own gravity and is discharged through the drain pipe 301. At the same time, the exhaust is also performed through the drain pipe 301. The push rod 305 drives the push plate 303 to continuously push the waste liquid on the bottom of the equipment housing 1 into the drain pipe 301, which speeds up the discharge speed of the waste liquid by its own weight. The reciprocating mechanism 4 includes a slider 402, a first gear 403, and a reciprocating plate 404. The slider 402 is fixedly mounted on the end of the push rod 305 away from the push plate 303 by bolts. The slider 402 is slidably mounted inside the top of the limiting frame 401. There are two first gears 403, which are respectively movably mounted on the bottom of the front and rear side walls of the equipment housing 1 by bearings. The end of the reciprocating plate 404 near the partition 2 is movably mounted on the slider 402 by a rotating shaft. The end of the reciprocating plate 404 away from the slider 402 is movably mounted on the edge of the first gear 403 away from its center by a rotating shaft. The reciprocating plate 404 drives the slider 402 to slide back and forth within the limiting frame 401, and the slider 402 drives the push rod 305 to reciprocate. The reciprocating mechanism 4 includes a dual-axis motor 405, a drive shaft 406, and a second gear 407. The dual-axis motor 405 is bolted to the bottom of the equipment housing 1, away from the pusher plate 303. There are two drive shafts 406, which are bolted to the two output shafts of the dual-axis motor 405 respectively. There are two second gears 407, which are bolted to the ends of the two drive shafts 406 away from the dual-axis motor 405 respectively. The second gear 407 is meshed with the first gear 403. The drive shaft 406 drives the second gear 407 to rotate, and the second gear 407 drives the first gear 403 to rotate. When the first gear 403 rotates, the reciprocating plate 404 drives the slider 402 to reciprocate within the limit frame 401. The pressure-carrying drainage mechanism 5 includes an upper horizontal shaft 502, a lower horizontal shaft 503, and drainage wheels 504. The upper horizontal shaft 502 is inserted and movably installed in one end of the two pressure-carrying drainage pipes 501 located inside the equipment housing 1. The lower horizontal shaft 503 is inserted and movably installed in one end of the two pressure-carrying drainage pipes 501 located outside the equipment housing 1. There are four drainage wheels 504, which are respectively bolted and sleeved on the sections of the two upper horizontal shafts 502 and the two lower horizontal shafts 503 located inside the pressure-carrying drainage pipes 501. By driving the lower horizontal shaft 503 and the upper horizontal shaft 502 to rotate simultaneously, the drainage wheels 504 on the upper horizontal shaft 502 and the lower horizontal shaft 503 rotate simultaneously in the same direction, thereby driving the waste liquid in the pressure-carrying drainage pipes 501 to be discharged quickly. The pressure-carrying drainage mechanism 5 includes a third gear 505, a chain 506, and a fourth gear 507. There are two third gears 505, which are respectively bolted to the middle of the section between the upper horizontal shaft 502 and the lower horizontal shaft 503 located between the two pressure-carrying drainage pipes 501. The chain 506 is meshed and movably sleeved on the two third gears 505. There are two fourth gears 507, which are respectively bolted to the section between the two pressure-carrying drainage pipes 501 located on the upper horizontal shaft 502, and are located on both sides of the upper third gear 505. By driving the fourth gear 507 to rotate, the upper horizontal shaft 502 rotates with the fourth gear 507. When the upper horizontal shaft 502 rotates, it drives the third gear 505 on the upper horizontal shaft 502 to rotate. The chain 506 then drives the third gear 505 on the lower horizontal shaft 503 to rotate, so that the lower horizontal shaft 503 and the upper horizontal shaft 502 rotate simultaneously. The lifting mechanism 6 includes an air cylinder 602, an air pipe 603, a piston 604, and a lifting cylinder 605. The air cylinder 602 is fixedly installed inside the top of the support frame 601 by bolts. There are two air pipes 603, the top ends of which are fixedly installed at the top of the air cylinder 602 by insertion, and the bottom ends of which are fixedly installed inside the partition plate 2 by insertion, and communicate with the inside of the sealing airbag 304. The piston 604 is slidably installed inside the air cylinder 602. The lifting cylinder 605 is slidably installed at the bottom of the air cylinder 602 by insertion, and the top end of the lifting cylinder 605 is fixedly installed at the middle of the bottom end of the piston 604 by bolts. By driving the pusher plate 303 to move closer to the partition plate 2, the air in the sealing airbag 304 is squeezed into the air cylinder 602 through the air pipe 603, causing the piston 604 to move downward inside the air cylinder 602, and the lifting cylinder 605 is lowered by the piston 604. The lifting mechanism 6 includes a lifting frame 606, a support rod 607, a return spring 608, and a rack 609. The lifting frame 606 is bolted to the bottom end of the lifting cylinder 605. The bottom end of the support rod 607 is bolted to the bottom end of the equipment housing 1. The support rod 607 is inserted and movably installed at one end of the lifting frame 606 near the partition 2. The support rod 607 is inserted and movably installed inside the lifting cylinder 605. The return spring 608 is movably sleeved on the outside of the support rod 607 and is located between the bottom end of the lifting frame 606 and the inside of the equipment housing 1. Between the bottom ends, there are two racks 609, which are respectively fixed to the front and rear ends of the lifting frame 606 away from the partition 2 by bolts. The racks 609 and the fourth gear 507 are connected by meshing. When the pusher plate 303 is moved away from the partition 2, the air in the air cylinder 602 is drawn into the sealed air bag 304 through the air pipe 603. The spring force of the return spring 608 drives the lifting frame 606 to rise, so that the racks 609 rise with the lifting frame 606. At this time, the racks 609 drive the fourth gear 507 to reverse.

[0018] Working principle: When in use, the waste liquid discharged through the equipment housing 1 falls into the bottom of the equipment housing 1 between the partition 2 and the ramp 302. The waste liquid flows into the drain pipe 301 by its own gravity and is discharged through the drain pipe 301. At the same time, ventilation is also carried out through the drain pipe 301. After the dual-shaft motor 405 is started, the second gear 407 is driven to rotate through the transmission shaft 406. The second gear 407 drives the first gear 403 to rotate. When the first gear 403 rotates, the reciprocating plate 404 drives the slider 402 to slide back and forth in the limit frame 401. The slider 402 drives the push rod 305 to reciprocate. The push rod 305 drives the push plate 303 to continuously push the waste liquid at the bottom of the equipment housing 1 into the drain pipe 301, which speeds up the discharge speed of the waste liquid discharged by its own weight. When the push plate 303 moves closer to the partition 2, the air in the sealing airbag 304 is squeezed into the air cylinder 602 through the air pipe 603, causing the piston 604 to move downwards within the air cylinder 602. The piston 604 drives the lifting cylinder 605 to descend, which in turn drives the lifting frame 606 to descend. The rack 609 then follows the lifting frame 606 downwards. During this process, the support rod 607 stabilizes the lifting frame 606 and compresses the return spring 608. When 09 descends, it drives the fourth gear 507 to rotate, causing the upper horizontal shaft 502 to rotate with the fourth gear 507. When the upper horizontal shaft 502 rotates, it drives the third gear 505 on the upper horizontal shaft 502 to rotate. Through the chain 506, it drives the third gear 505 on the lower horizontal shaft 503 to rotate, causing the lower horizontal shaft 503 and the upper horizontal shaft 502 to rotate simultaneously. This causes the drain wheel 504 on the upper horizontal shaft 502 and the lower horizontal shaft 503 to rotate simultaneously in the same direction, thereby driving the waste liquid in the pressure drain pipe 501 to be discharged quickly. When the push plate 303 moves away from the partition plate 2, the air in the air cylinder 602 is drawn into the sealed air bag 304 through the air pipe 603. The spring force of the return spring 608 drives the lifting frame 606 to rise, causing the rack 609 to rise with the lifting frame 606. At this time, the rack 609 drives the fourth gear 507 to reverse, causing the drain wheel 504 to reverse and still accelerate the discharge of waste liquid in the pressure drain pipe 501. This improves the waste liquid discharge efficiency and avoids backflow of waste liquid in the pipeline that could damage the equipment.

[0019] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0020] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A waste liquid collection and treatment device for chemical equipment, comprising a housing (1), wherein a partition (2) is fixedly installed in the middle of the bottom of the housing (1) by welding, and a connecting plate is fixedly installed at the top of the partition (2) and the top left side of the housing (1) by bolts, characterized in that: The self-weight liquid drainage and ventilation mechanism (3) includes a liquid drainage and ventilation pipe (301), which consists of two pipes and is fixedly installed inside the equipment housing (1) at the bottom and at the end away from the connecting plate. The reciprocating mechanism (4) includes a limiting frame (401). There are two limiting frames (401) and they are fixedly installed on the bottom of the equipment housing (1) by bolts, and are located below the connecting plate near the partition plate (2). The pressure-carrying liquid drainage mechanism (5) includes a pressure-carrying liquid drainage pipe (501). There are two pressure-carrying liquid drainage pipes (501), and the top end of each pipe is fixedly installed in the middle of the connecting plate by insertion. The middle of each pipe is fixedly installed in the bottom of the equipment housing (1) by insertion. The lifting mechanism (6) includes a support frame (601), which is fixedly installed at the bottom of the equipment housing (1) by bolts and is located below the connecting plate; The self-weight liquid drainage and ventilation mechanism (3) includes a ramp plate (302), a liquid pusher plate (303), a sealing airbag (304), and a push rod (305). The ramp plate (302) is fixedly installed on the bottom of the equipment housing (1) away from the connecting plate by bolts. The liquid pusher plate (303) is slidably installed on the bottom of the equipment housing (1). The two ends of the sealing airbag (304) are respectively fixedly bonded to the side wall opposite to the liquid pusher plate (303) of the partition plate (2). There are two push rods (305), which are respectively inserted and installed in the partition plate (2) and the sealing airbag (304) by insertion. The end of the push rod (305) located in the sealing airbag (304) is fixedly installed on the side of the liquid pusher plate (303) close to the partition plate (2) by bolts. The reciprocating mechanism (4) includes a slider (402), a first gear (403), and a reciprocating plate (404). The slider (402) is fixedly installed on the end of the push rod (305) away from the push plate (303) by bolts. The slider (402) is slidably installed inside the top of the limit frame (401). There are two first gears (403), which are respectively movably installed on the bottom of the front and rear side walls of the equipment housing (1) by bearings. The end of the reciprocating plate (404) near the partition (2) is movably installed on the slider (402) by a rotating shaft. The end of the reciprocating plate (404) away from the slider (402) is movably installed on the edge of the first gear (403) away from its center by a rotating shaft. The reciprocating mechanism (4) also includes a dual-axis motor (405), a transmission shaft (406), and a second gear (407). The dual-axis motor (405) is fixedly installed inside the equipment housing (1) at the bottom end away from the push plate (303) by bolts. There are two transmission shafts (406), which are fixedly installed on the two output shafts of the dual-axis motor (405) by bolts respectively. There are two second gears (407), which are fixedly installed on the two transmission shafts (406) at the ends away from the dual-axis motor (405) by bolts respectively. The second gear (407) and the first gear (403) are connected by meshing. The pressure-carrying drainage mechanism (5) includes an upper horizontal shaft (502), a lower horizontal shaft (503), and drainage wheels (504). The upper horizontal shaft (502) is inserted and movably installed in one end of the two pressure-carrying drainage pipes (501) located inside the equipment housing (1). The lower horizontal shaft (503) is inserted and movably installed in one end of the two pressure-carrying drainage pipes (501) located outside the equipment housing (1). There are four drainage wheels (504), which are respectively fixedly sleeved on a section of the two upper horizontal shafts (502) and the two lower horizontal shafts (503) located inside the pressure-carrying drainage pipes (501) by bolts. The pressure-carrying drainage mechanism (5) further includes a third gear (505), a chain (506), and a fourth gear (507). There are two third gears (505), which are respectively fixedly sleeved on the middle section between the upper horizontal shaft (502) and the lower horizontal shaft (503) located between the two pressure-carrying drainage pipes (501) by bolts. The chain (506) is movably sleeved on the two third gears (505) through meshing. There are two fourth gears (507), which are respectively fixedly sleeved on the middle section between the upper horizontal shaft (502) located between the two pressure-carrying drainage pipes (501) by bolts, and are respectively located on both sides of the upper third gear (505). The lifting mechanism (6) includes an air cylinder (602), an air pipe (603), a piston (604), and a lifting cylinder (605). The air cylinder (602) is fixedly installed inside the top of the support frame (601) by bolts. There are two air pipes (603), and their top ends are fixedly installed at the top of the air cylinder (602) by insertion, and their bottom ends are fixedly installed inside the partition (2) by insertion, and are connected to the inside of the sealing airbag (304). The piston (604) is slidably installed inside the air cylinder (602). The lifting cylinder (605) is slidably installed at the bottom of the air cylinder (602) by insertion, and the top end of the lifting cylinder (605) is fixedly installed at the middle of the bottom end of the piston (604) by bolts. The lifting mechanism (6) further includes a lifting frame (606), a support rod (607), a return spring (608), and a rack (609). The lifting frame (606) is fixedly installed at the bottom end of the lifting cylinder (605) by bolts. The bottom end of the support rod (607) is fixedly installed at the bottom end of the equipment housing (1) by bolts. The support rod (607) is inserted and movably installed at one end of the lifting frame (606) near the partition (2). The support rod (607) is inserted and movably installed inside the lifting cylinder (605). The return spring (608) is movably sleeved outside the support rod (607) and is located between the bottom end of the lifting frame (606) and the bottom end of the equipment housing (1). There are two racks (609), which are fixedly installed at the front and rear ends of the lifting frame (606) away from the partition (2) by bolts. The rack (609) is movably connected to the fourth gear (507) by meshing.

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