Stainless steel oil pipe ultrasonic cleaning device with circulating filtration assembly mechanism

Abstract

The invention relates to the technical field of ultrasonic cleaning devices, in particular to a stainless steel oil pipe ultrasonic cleaning device with a circulating filtering assembly mechanism, which comprises a cleaning mechanism, a containing mechanism, a retracting and releasing mechanism and a filtering mechanism. According to the stainless steel oil pipe cleaning device, the flange connecting piece is connected with external hoisting equipment, the external hoisting equipment enables the whole lifting frame to move downwards through the flange connecting piece, when the chassis makes contact with the ground, the motor drives the rotating shaft to release the rope body, the fence strips are flatly laid to form an operation plane, and the unfolded net body can rapidly receive stainless steel oil pipes thrown by workers; the hoisting equipment and the motor cooperatively operate, the motor tightens the rope body through the rotating shaft, the fence bars are erected and matched with the net body to form an enclosure structure, the stainless steel oil pipe is restrained in the net frame, then the stainless steel oil pipe is wholly hoisted to the cleaning box for immersion cleaning, the stainless steel oil pipe is hoisted out at a time after immersion cleaning is completed, the net frame is rapidly opened and closed, and the feeding and extracting processes of materials are simpler and more convenient. And the cleaning operation efficiency is obviously improved.

Description

Technical Field

[0001] The invention relates to the technical field of ultrasonic cleaning devices, in particular to a stainless steel oil pipe ultrasonic cleaning device with a circulating filtering assembly mechanism. Background Art

[0002] Ultrasonic cleaning uses the cavitation effect, acceleration effect and straight flow effect of ultrasound in liquid to directly and indirectly affect liquid and dirt, so that the dirt layer is dispersed, emulsified and peeled off to achieve the purpose of cleaning. Among the ultrasonic cleaning machines currently used, cavitation and straight flow effects are more widely used.

[0003] The currently used ultrasonic cleaning devices are inconvenient to use when cleaning a large number of stainless steel oil pipes. For example, whether the oil pipe is put into the cleaning device or taken out of the cleaning device, it is impossible to put it in or take it out at one time. Then, this repeated putting in and taking out action not only reduces work efficiency, but also increases labor intensity. Summary of the invention

[0004] The present invention aims to solve one of the technical problems existing in the prior art or related technology.

[0005] To this end, the technical solution adopted in the present invention is: A stainless steel oil pipe ultrasonic cleaning device with a circulating filtering assembly mechanism, comprising a cleaning mechanism, a containing mechanism, a retracting mechanism and a filtering mechanism, wherein the cleaning mechanism comprises a cleaning box, a water tank installed on one side of the cleaning box, a plurality of circulating water pipes and two high-pressure water pumps connected between the cleaning box and the water tank, an ultrasonic generator connected to the top of the cleaning box, a containing mechanism, wherein the containing mechanism comprises a chassis movably arranged inside the cleaning box, a plurality of railings movably connected to the outer edge of the chassis, a mesh body connected between the plurality of railings, and a plurality of openings opened on the railings, wherein the top of the cleaning box is provided with a circular opening suitable for the lifting of the chassis A mouth, a retracting and releasing mechanism, the retracting and releasing mechanism comprising a lifting frame suspended on the top of the chassis, a rotating shaft movably installed inside the lifting frame, a motor connected between the lifting frame and the rotating shaft, a rope body connected between the railing and the rotating shaft, and a flange connecting piece connected to the top of the lifting frame; a filtering mechanism, the filtering mechanism comprising a filter plate installed inside the cleaning box, a partition installed at the bottom of the filter plate and connected to the bottom of the inner cavity of the cleaning box, an ⊂-shaped cavity formed at the bottom of the inner cavity of the cleaning box, a slag receiving box connected and communicated with the cleaning box, and a box door movably connected to the slag receiving box, and the interior of the slag receiving box is communicated with the interior of the ⊂-shaped cavity.

[0006] By adopting the above technical solution, after connecting the flange connector to the external hoisting equipment, the external hoisting equipment moves the entire lifting frame downward through the flange connector. When the chassis touches the ground, the motor drives the rotating shaft to release the rope body, causing the bars to lie flat to form a working plane. At this time, the unfolded net body can quickly receive the stainless steel oil pipes placed by the workers. During the cleaning operation, the hoisting equipment and the motor operate in coordination. The motor tightens the rope body with the rotating shaft, and the bars stand upright, cooperating with the net body to form an enclosure structure (net frame), constraining the stainless steel oil pipes within the net frame. Then, the whole is hoisted to the cleaning tank for immersion cleaning. After the immersion cleaning is completed, it is hoisted out again. Through mechanical linkage, the net frame can be quickly opened and closed, making the process of material placement and extraction more convenient, and significantly improving the cleaning operation efficiency.

[0007] In a preferred example of the present invention, it can be further configured that: multiple circulating water pipes are grouped in pairs and set in multiple groups. The multiple groups of circulating water pipes are arranged at equal intervals in a row, and a group of circulating water pipes close to the bottom of the cleaning tank is communicated with the inside of the ⊂-shaped cavity.

[0008] In a preferred example of the present invention, it can be further configured that: two high-pressure water pumps and an ultrasonic generator are connected in series. The two high-pressure water pumps are arranged vertically. The water intake end of the high-pressure water pump is communicated with the inside of the cleaning tank, and the water outlet end of the high-pressure water pump is communicated with the inside of the water tank.

[0009] In a preferred example of the present invention, it can be further configured that: a closing mechanism is provided on one side of the cleaning tank. The closing mechanism includes two guide rods fixedly connected to one side of the cleaning tank, a gate slidably connected between the two guide rods, and a hydraulic cylinder connected between the cleaning tank and the gate. The bottom of the gate slidably penetrates through the top of the slag receiving box.

[0010] In a preferred example of the present invention, it can be further configured that: a transparent cover and a touch switch are fixedly connected to the top of the filter plate. The touch switch is located inside the transparent cover. The top of the transparent cover is movably attached to the bottom of the chassis. The touch switch is electrically connected to the high-pressure water pump.

[0011] In a preferred example of the present invention, it can be further configured that: a leveling mechanism is provided on the top of the cleaning tank. The leveling mechanism includes an arc-shaped plate provided on one side of the round opening and a backing plate provided on the other side of the round opening. The arc-shaped plate and the backing plate are both fixedly connected to the top of the cleaning tank, and their tops are located on the same horizontal plane.

[0012] In a preferred example of the present invention, it can be further configured that: a plurality of reinforcing ribs are connected between the cleaning tank and the arc-shaped plate. The plurality of reinforcing ribs are arranged at equal intervals in a fan shape.

[0013] In a preferred example of the present invention, it can be further configured that: a water outlet mechanism is provided on the other side of the cleaning tank. The water outlet mechanism includes a drain pipe connected to and communicated with the cleaning tank and a plug screwed to the drain pipe. The drain pipe is communicated with the inside of the ⊂-shaped cavity.

[0014] In a preferred embodiment of the present invention, it can be further configured that a reinforcement plate is sleeved outside the motor body, and the reinforcement plate is fixedly connected to the outer wall of the lifting frame.

[0015] By adopting the above technical solutions, the beneficial effects achieved by the present invention are as follows: 1. In the present invention, after connecting the flange connector to the external hoisting equipment, the external hoisting equipment moves the entire lifting frame downward through the flange connector. When the chassis touches the ground, the motor drives the rotating shaft to release the rope body, so that the bars are laid flat to form a working plane. At this time, the unfolded net body can quickly receive the stainless steel oil pipes put by the workers. During the cleaning operation, the hoisting equipment and the motor operate in coordination. The motor uses the rotating shaft to tighten the rope body, and the bars stand upright, cooperating with the net body to form an enclosure structure (net frame), restricting the stainless steel oil pipes within the net frame, and then the whole is hoisted to the cleaning tank for immersion cleaning. After the immersion cleaning is completed, it is hoisted out again. Through mechanical linkage, the net frame can be quickly opened and closed, making the feeding and extraction process of the materials more convenient, and significantly improving the cleaning operation efficiency.

[0016] 2. In the present invention, when the bottom of the lifting frame is completely attached to the arc plate and the cushion plate, the chassis synchronously presses the touch switch, triggering the synchronous start of the high-pressure water pump and the ultrasonic generator. At this time, the double high-pressure water pumps pump the cleaning liquid from the cleaning tank to the water tank, and the water body is recycled through the circulating water pipe. The ultrasonic generator continuously emits high-frequency vibration waves, jointly flushing the surface of the stainless steel oil pipes with the directional water flow in the cleaning tank to ensure the cleaning effect. When the chassis is lifted away from the touch switch, the system automatically shuts down and cuts off the energy supply to achieve the energy-saving goal.

[0017] 3. In the present invention, during the cleaning process, the slag falling from the stainless steel oil pipes penetrates into the ⊂-shaped cavity from the position of the filter plate, and then the water flow direction makes the slag enter the slag receiving box, thereby preventing the slag from entering the high-pressure water pump along with the water flow and reducing the probability of damage to the high-pressure water pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional view of the overall structure of the present invention; Figure 2 It is a rear view of the overall structure of the present invention; Figure 3 It is a schematic diagram of the cleaning mechanism of the present invention; Figure 4 It is a schematic diagram of the connection relationship between the loading mechanism and the winding and unwinding mechanism of the present invention; Figure 5 It is a schematic diagram of the loading mechanism of the present invention; Figure 6 It is a schematic diagram of the winding and unwinding mechanism of the present invention; Figure 7 It is a schematic diagram of the filtering mechanism and the closing mechanism of the present invention; Figure 8 This is a schematic diagram of the installation positions of the leveling mechanism and the water outlet mechanism of the present invention.

[0019] Reference numerals: 100, cleaning mechanism; 110, cleaning tank; 120, water tank; 130, circulating water pipe; 140, high-pressure water pump; 150, ultrasonic generator; 200, holding mechanism; 210, chassis; 220, bar; 230, mesh body; 240, opening; 300, winding and unwinding mechanism; 310, lifting frame; 320, rotating shaft; 330, motor; 340, rope body; 350, flange connecting piece; 400, filtering mechanism; 410, filter screen plate; 420, partition board; 430, ⊂-shaped cavity; 440, slag receiving box; 450, box door; 500, closing mechanism; 510, guide rod; 520, gate; 530, hydraulic cylinder; 610, transparent cover; 620, touch switch; 700, leveling mechanism; 710, arc plate; 720, backing plate; 800, water outlet mechanism; 810, drain pipe; 820, plug; 900, reinforcement plate. Detailed implementation manners

[0020] To make the objectives, technical solutions, and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below in conjunction with the specific implementation manners and with reference to the accompanying drawings. It should be noted that, without conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0021] It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present invention.

[0022] The following describes a stainless steel oil pipe ultrasonic cleaning device with a circulating filtration assembly mechanism provided by some embodiments of the present invention in conjunction with the accompanying drawings.

[0023] Embodiment 1

[0024] Combined with Figures 1 - 8 As shown, a stainless steel oil pipe ultrasonic cleaning device with a circulating filtration assembly mechanism provided by the present invention includes a cleaning mechanism 100, a holding mechanism 200, a winding and unwinding mechanism 300, and a filtering mechanism 400. The cleaning mechanism 100 includes a cleaning tank 110, a water tank 120 installed on one side of the cleaning tank 110, a plurality of circulating water pipes 130 connected between the cleaning tank 110 and the water tank 120, two high-pressure water pumps 140, and an ultrasonic generator 150 connected to the top of the cleaning tank 110; The loading mechanism 200, the loading mechanism 200 includes a chassis 210 movably arranged inside the cleaning tank 110, a plurality of bar strips 220 movably connected to the outer edge of the chassis 210, a mesh body 230 connected between the plurality of bar strips 220, and a plurality of openings 240 formed in the bar strips 220. A circular opening suitable for the lifting of the chassis 210 is formed at the top of the cleaning tank 110; The winding and unwinding mechanism 300, the winding and unwinding mechanism 300 includes a lifting frame 310 suspended above the top of the chassis 210, a rotating shaft 320 movably installed inside the lifting frame 310, a motor 330 connected between the lifting frame 310 and the rotating shaft 320, a rope body 340 connected between the bar strip 220 and the rotating shaft 320, and a flange connecting piece 350 connected to the top of the lifting frame 310; The filtering mechanism 400, the filtering mechanism 400 includes a filter screen plate 410 installed inside the cleaning tank 110, a partition plate 420 installed at the bottom of the filter screen plate 410 and connected to the bottom of the inner cavity of the cleaning tank 110, a ⊂-shaped cavity 430 formed at the bottom of the inner cavity of the cleaning tank 110, a slag receiving box 440 connected and communicated with the cleaning tank 110, and a box door 450 movably connected to the slag receiving box 440. The inside of the slag receiving box 440 is communicated with the inside of the ⊂-shaped cavity 430.

[0025] Furthermore, the plurality of circulating water pipes 130 are grouped in pairs and set as multiple groups. The multiple groups of circulating water pipes 130 are arranged at equal intervals in a column. The group of circulating water pipes 130 close to the bottom of the cleaning tank 110 is communicated with the inside of the ⊂-shaped cavity 430. The layout design of the circulating water pipes 130 can uniformly drive the water flow movement in the cleaning tank 110. The water flow flows in a circular shape and can continuously wash the stainless steel oil pipe located in the cleaning tank 110, improving the cleaning effect of the stainless steel oil pipe.

[0026] Furthermore, two high-pressure water pumps 140 and an ultrasonic generator 150 are connected in series. The two high-pressure water pumps 140 are arranged vertically. The water suction end of the high-pressure water pump 140 is communicated with the inside of the cleaning tank 110, and the water outlet end of the high-pressure water pump 140 is communicated with the inside of the water tank 120. This series connection method makes the device more convenient to use.

[0027] Furthermore, a leveling mechanism 700 is provided at the top of the cleaning tank 110. The leveling mechanism 700 includes an arc-shaped plate 710 provided on one side of the circular opening and a cushion plate 720 provided on the other side of the circular opening. The arc-shaped plate 710 and the cushion plate 720 are both fixedly connected to the top of the cleaning tank 110, and their tops are on the same horizontal plane. When the lifting frame 310 drives the mesh frame composed of the chassis 210, the plurality of bar strips 220, and the mesh body 230 to descend, the arc-shaped plate 710 and the cushion plate 720 cooperate to make the lifting frame 310 placed horizontally, so as to ensure that the mesh frame will not be stuck by the circular opening when lifting and lowering.

[0028] Further, a plurality of reinforcing ribs are connected between the cleaning tank 110 and the arc-shaped plate 710. The plurality of reinforcing ribs are arranged at equal intervals and in a fan shape. Setting the plurality of reinforcing ribs can improve the connection firmness between the arc-shaped plate 710 and the cleaning tank 110.

[0029] Further, a water outlet mechanism 800 is provided on the other side of the cleaning tank 110. The water outlet mechanism 800 includes a drain pipe 810 connected and communicated with the cleaning tank 110, and a plug 820 screwed to the drain pipe 810. The drain pipe 810 is internally communicated with the ⊂-shaped cavity 430. The cooperation between the plug 820 and the drain pipe 810 can control the discharge time of the cleaning liquid in the cleaning tank 110 and ensure the cleanliness of the cleaning liquid in the cleaning tank 110.

[0030] Further, a reinforcing plate 900 is sleeved outside the body of the motor 330. The reinforcing plate 900 is fixedly connected to the outer wall of the lifting frame 310. Setting the reinforcing plate 900 can reinforce the motor 330, ensure that the output shaft of the motor 330 can smoothly drive the rotating shaft 320 to rotate, and ensure that the mesh frame can be smoothly opened and retracted.

[0031] Embodiment 2

[0032] Combined with Figure 1 and Figure 7 As shown, on the basis of Embodiment 1, a closing mechanism 500 is provided on one side of the cleaning tank 110. The closing mechanism 500 includes two guide rods 510 fixedly connected to one side of the cleaning tank 110, a gate 520 slidably connected between the two guide rods 510, and a hydraulic cylinder 530 connected between the cleaning tank 110 and the gate 520. The bottom of the gate 520 slidably penetrates through the top of the slag receiving box 440. When cleaning the slag in the slag receiving box 440, the hydraulic cylinder 530 controls the gate 520 to block the inlet of the slag receiving box 440 to prevent the leakage of the cleaning liquid during the process of cleaning the inside of the slag receiving box 440.

[0033] Embodiment 3

[0034] Combined with Figure 7 As shown, in the above embodiment, a transparent cover 610 and a touch switch 620 are fixedly connected to the top of the filter screen plate 410. The touch switch 620 is located inside the transparent cover 610. The top of the transparent cover 610 is movably attached to the bottom of the chassis 210. The touch switch 620 is electrically connected to the high-pressure water pump 140. The transparent cover 610 plays a role in protecting the touch switch 620. Using the touch switch 620 to control the operation of the high-pressure water pump 140 and the ultrasonic generator 150 can achieve the purpose of energy saving.

[0035] Working principle and usage process of the present invention: Before using this device, connect the flange connector 350 to an external hoisting device, so as to facilitate the net frame composed of the chassis 210, the bars 220, and the net body 230 to enter and exit the top of the cleaning tank 110. Then, when loading materials, the external hoisting device lowers the lifting frame 310 through the flange connector 350, and then the rotating shaft 320, the rope body 340, the bars 220, and the chassis 210 follow and descend. After the chassis 210 contacts the ground, the motor 330 drives the rotating shaft 320 to rotate, and the rotating shaft 320 loosens the rope body 340, making multiple bars 220 lie flat on the ground. Then the net body 230 is also opened, and on-site workers can quickly throw stainless steel oil pipes towards the center of the net body 230, thus completing the loading operation. Then, when the stainless steel oil pipes are put into the cleaning tank 110, the external hoisting device and the motor 330 are started simultaneously. The motor 330 tightens the rope body 340 through the rotating shaft 320. Then, under the pulling of the rope body 340, multiple bars 220 are erected again, and then cooperate with the net body 230 to form an enclosure structure (net frame), enclosing many stainless steel oil pipes inside the net frame. Then the external hoisting device hoists the net frame to the top of the circular opening, and then the net frame sinks from the circular opening position into the cleaning tank 110. When the bottom of the lifting frame 310 fits with the top of the arc-shaped plate 710 and the top of the cushion plate 720, the chassis 210 also presses against the touch switch 620. Then the high-pressure water pump 140 and the ultrasonic generator 150 work simultaneously. The two high-pressure water pumps 140 cooperate to quickly pump the cleaning liquid in the cleaning tank 110 into the water tank 120, and then the water in the water tank 120 flows back through multiple circulating water pipes 130, thereby realizing the recycling of water resources. Then the ultrasonic generator 150 continuously emits high-frequency vibration waves into the cleaning tank 110, and then, in cooperation with the movement direction of the water flow in the cleaning tank 110, continuously flushes the stainless steel oil pipes, thus ensuring the cleaning effect of the stainless steel oil pipes. After that, after the cleaning is completed, control the external hoisting device to lift, and many stainless steel oil pipes can be taken out at one time, greatly improving the cleaning efficiency. During the cleaning period, the slag falling from the stainless steel oil pipes penetrates into the ⊂-shaped cavity 430 from the position of the filter plate 410, and then the water flow direction makes the slag enter the slag receiving box 440, thereby preventing the slag from entering the high-pressure water pump 140 along with the water flow and reducing the probability of damage to the high-pressure water pump 140.

[0036] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirits of the present invention. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. An ultrasonic cleaning device for stainless steel oil pipes with a circulating filtration assembly mechanism, characterized in that, Including: A cleaning mechanism (100), the cleaning mechanism (100) includes a cleaning tank (110), a water tank (120) installed on one side of the cleaning tank (110), a plurality of circulating water pipes (130) connected between the cleaning tank (110) and the water tank (120), two high-pressure water pumps (140), and an ultrasonic generator (150) connected to the top of the cleaning tank (110); A loading mechanism (200), the loading mechanism (200) includes a chassis (210) movably arranged inside the cleaning tank (110), a plurality of bars (220) movably connected to the outer edge of the chassis (210), a mesh body (230) connected between the plurality of bars (220), and a plurality of openings (240) formed on the bars (220). A circular opening suitable for the lifting of the chassis (210) is formed at the top of the cleaning tank (110); A winding and unwinding mechanism (300), the winding and unwinding mechanism (300) includes a lifting frame (310) suspended above the top of the chassis (210), a rotating shaft (320) movably installed inside the lifting frame (310), a motor (330) connected between the lifting frame (310) and the rotating shaft (320), a rope body (340) connected between the bar (220) and the rotating shaft (320), and a flange connecting member (350) connected to the top of the lifting frame (310); A filtering mechanism (400), the filtering mechanism (400) includes a filter screen plate (410) installed inside the cleaning tank (110), a partition plate (420) installed at the bottom of the filter screen plate (410) and connected to the bottom of the inner cavity of the cleaning tank (110), a ⊂-shaped cavity (430) formed at the bottom of the inner cavity of the cleaning tank (110), a slag receiving box (440) connected and communicated with the cleaning tank (110), and a box door (450) movably connected to the slag receiving box (440). The inside of the slag receiving box (440) is communicated with the inside of the ⊂-shaped cavity (430).

2. The ultrasonic cleaning device for stainless steel oil pipes with a circulating filtration assembly mechanism according to claim 1, characterized in that, The plurality of circulating water pipes (130) are grouped in pairs, set as multiple groups, and the multiple groups of circulating water pipes (130) are arranged at equal intervals in a column. A group of circulating water pipes (130) close to the bottom of the cleaning tank (110) is communicated with the inside of the ⊂-shaped cavity (430).

3. The ultrasonic cleaning device for stainless steel oil pipes with a circulating filtration assembly mechanism according to claim 1, wherein, The two high-pressure water pumps (140) and the ultrasonic generator (150) are connected in series. The two high-pressure water pumps (140) are arranged vertically. The water pumping end of the high-pressure water pump (140) is communicated with the inside of the cleaning tank (110), and the water outlet end of the high-pressure water pump (140) is communicated with the inside of the water tank (120).

4. A stainless steel oil pipe ultrasonic cleaning device with a circulating filtration assembly mechanism according to claim 1, characterized in that, A closing mechanism (500) is provided on one side of the cleaning tank (110). The closing mechanism (500) includes two guide rods (510) fixedly connected to one side of the cleaning tank (110), a gate (520) slidably connected between the two guide rods (510), and a hydraulic cylinder (530) connected between the cleaning tank (110) and the gate (520). The bottom of the gate (520) slidably penetrates through the top of the slag receiving box (440).

5. A stainless steel oil pipe ultrasonic cleaning device with a circulating filtration assembly mechanism according to claim 1, characterized in that, A transparent cover (610) and a touch switch (620) are fixedly connected to the top of the filter screen plate (410). The touch switch (620) is located inside the transparent cover (610). The top of the transparent cover (610) is movably attached to the bottom of the chassis (210). The touch switch (620) is electrically connected to the high-pressure water pump (140).

6. The ultrasonic cleaning device for stainless steel oil pipes with a circulating filtration assembly mechanism according to claim 1, wherein, A leveling mechanism (700) is provided at the top of the cleaning tank (110). The leveling mechanism (700) includes an arc-shaped plate (710) provided on one side of the circular opening and a cushion plate (720) provided on the other side of the circular opening. The arc-shaped plate (710) and the cushion plate (720) are both fixedly connected to the top of the cleaning tank (110), and their tops are located on the same horizontal plane.

7. The ultrasonic cleaning device for stainless steel oil pipes with a circulating filtration assembly mechanism according to claim 6, characterized in that, A plurality of reinforcing ribs are connected between the cleaning tank (110) and the arc-shaped plate (710), and the plurality of reinforcing ribs are arranged at equal intervals in a fan shape.

8. The ultrasonic cleaning device for stainless steel oil pipes with a circulating filtration assembly mechanism according to claim 1, characterized in that, An outlet mechanism (800) is provided on the other side of the cleaning tank (110). The outlet mechanism (800) includes a drain pipe (810) connected to and communicating with the cleaning tank (110), and a plug (820) screwed to the drain pipe (810). The drain pipe (810) communicates with the inside of the ⊂-shaped cavity (430).

9. The ultrasonic cleaning device for stainless steel oil pipes with a circulating filtration assembly mechanism according to claim 8, characterized in that, A reinforcing plate (900) is sleeved on the outer side of the body of the motor (330), and the reinforcing plate (900) is fixedly connected to the outer wall of the lifting frame (310).

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