Paper packaging box sheared scrap recovery device

Abstract

The invention discloses a paper packaging box sheared scrap recovery device which comprises a recovery box body and a rectangular moving seat, a recovery hopper is fixedly connected to the middle of the upper surface of the recovery box body, a silica gel pad is fixedly installed on the upper surface of the recovery hopper, and a recovery box door is movably installed on the front surface of the recovery box body and close to the lower end. And a box door handle is fixedly installed on the front surface, close to the other end, of the recycling box door, and moving wheels are fixedly installed on the lower surface, close to the four corners, of the rectangular moving seat. According to the paper packaging box sheared scrap recycling device, scraps in the recycling box body can be compressed, waste of a large amount of storage space in the recycling box and increase of the number of the recycling box are avoided, the investment of economic cost is reduced, and the recycling efficiency is improved. And a recycling hopper fixedly connected with the middle of the upper surface of the recycling box body can be tightly attached to an equipment scrap discharging opening, and scraps are prevented from being scattered out from gaps.

Description

Technical Field

[0001] The invention relates to the technical field of recycling devices, and in particular to a recycling device for sheared scraps of a paper packaging box. Background Art

[0002] Paper packaging boxes refer to box-shaped containers made of cardboard or paper materials. Paper packaging boxes are usually made of recyclable and degradable cardboard or paper materials. Compared with plastic packaging boxes, paper materials can be recycled to reduce the consumption of natural resources, and can be naturally decomposed after proper treatment. Paper packaging boxes are relatively light and easy to carry and transport. Cardboard materials are easy to process into boxes of various shapes and sizes, and can be customized according to product requirements. They can provide certain protection and cushioning effects to protect goods from collisions, friction and other external influences. Paper packaging boxes can be processed by printing, laminating and decoration to increase the visual appeal and brand image of the product. Packaging boxes are suitable for packaging of various commodities, including food, beverages, cosmetics, electronic products, gifts, etc. They can meet the packaging needs of different products and provide support for product marketing and sales. However, in the process of cutting paper packaging boxes, debris will be generated, and the debris needs to be recycled. The debris is cleaned by a cleaning component and then discharged through a debris discharge port and falls into the recycling bin below. However, there is a gap between the collection port of the recycling bin and the debris discharge port on the equipment, causing the debris to scatter. In addition, the size of the debris is not fixed, which will result in a large amount of storage space waste inside the recycling bin, which will lead to an increase in the number of recycling bins required, increasing the economic cost investment. Summary of the invention

[0003] The main purpose of the present invention is to provide a paper packaging box shearing debris recovery device, which can effectively solve the problems in the background technology.

[0004] To achieve the above object, the technical solution adopted by the present invention is:

[0005] A paper packaging box shearing debris recovery device comprises a recovery box body and a rectangular movable seat, a recovery bucket is fixedly connected to the middle part of the upper surface of the recovery box body, a silicone pad is fixedly installed on the upper surface of the recovery bucket, a recovery box door is movably installed on the front surface of the recovery box body near the lower end, a box door handle is fixedly installed on the front surface of the recovery box door near the other end, and moving wheels are fixedly installed on the lower surface of the rectangular movable seat near the four corners, a compression structure is arranged inside the recovery box body, and a lifting structure is arranged inside the rectangular movable seat, and the compression structure comprises a protective cover, a servo motor, a No. 1 bearing, a rectangular transmission groove, a circular transmission rod, a rectangular slide groove, a rectangular slide block, a No. 2 bearing, a No. 2 umbrella gear, a No. 1 umbrella gear, a bidirectional threaded rod, and a rectangular extrusion plate.

[0006] Preferably, a protective cover is fixedly installed on the front surface of the recycling box near the other end, a servo motor is fixedly installed inside the servo motor on the front surface of the recycling box, a circular transmission rod is fixedly connected to the rotating part of the servo motor, and a rectangular transmission groove is opened inside the recycling box near the other end, and No. 1 bearings are fixedly installed in the middle of the front and rear surfaces of the rectangular transmission groove.

[0007] Preferably, a circular transmission rod is installed on the No. 1 bearing, and a No. 1 umbrella-shaped gear is fixedly installed on the outer surface of the circular transmission rod near the front and rear ends. Rectangular slide grooves are opened on the front and rear surfaces inside the recovery box body, and No. 2 bearings are fixedly installed in the middle of the two end surfaces of the rectangular slide groove, and a bidirectional threaded rod is installed on the No. 2 bearing.

[0008] Preferably, a second bevel gear is fixedly installed on the other end surface of the bidirectional threaded rod, and a first bevel gear fixedly installed on the outer surface of the circular transmission rod near the front and rear ends is meshed with a second bevel gear fixedly installed on the other end surface of the bidirectional threaded rod, and rectangular sliders are threadedly installed on the outer surface of the bidirectional threaded rod near both ends, and rectangular sliders are fixedly installed on the front and rear surfaces of the rectangular extrusion plate.

[0009] Preferably, the lifting structure includes a rotating hand wheel, a No. 1 threaded rod, a No. 3 bearing, a No. 1 slide groove, a rectangular slide bar, a transmission tooth groove, a transmission gear, a No. 4 bearing, a rotating rod, a No. 1 folding rod, an axle rod, a No. 2 folding rod, a No. 1 mounting seat, a No. 1 slider, a rectangular lifting plate, a No. 2 slide groove, a support column, and a circular slide hole.

[0010] Preferably, a No. 1 slide groove is provided on the inner bottom surface of the rectangular movable seat, and a No. 3 bearing is fixedly installed in the middle of the front and rear surfaces of the No. 1 slide groove, a No. 1 threaded rod is installed on the No. 3 bearing, a rotating handwheel is fixedly installed on the front surface of the No. 1 threaded rod, and a rectangular slide strip is threadedly installed on the outer surface of the No. 1 threaded rod.

[0011] Preferably, a transmission tooth groove is provided on the upper surface of the rectangular slide bar, and No. 4 bearings are fixedly installed on the inner surface of both ends of the rectangular movable seat near the lower end, a rotating rod is installed on the No. 4 bearing, and a transmission gear is fixedly installed in the middle of the rotating rod. The transmission gear fixedly installed in the middle of the rotating rod is meshed with the transmission tooth groove provided on the upper surface of the rectangular slide bar.

[0012] Preferably, a No. 1 folding rod is fixedly installed on the outer surface of the rotating rod near both ends, a shaft rod is movably installed at the front end of the No. 1 folding rod, a No. 2 folding rod is fixedly installed on the outer surface of the shaft rod, a No. 2 slide groove is opened on the upper end of the inner surface of the two ends of the rectangular movable seat, a No. 1 slider is slidably installed in the No. 2 slide groove, and a No. 1 slider is fixedly installed in the middle of the two end surfaces of the rectangular lifting plate.

[0013] Preferably, a No. 1 mounting seat is fixedly installed on the lower surface of the rectangular lifting plate near both ends, a No. 2 folding rod is movably installed on the No. 1 mounting seat, support columns are fixedly installed on the upper surface of the rectangular lifting plate near the four corners, circular sliding holes are opened on the upper surface of the rectangular movable seat near the four corners, support columns are slidably installed in the circular sliding holes, and a recovery box is fixedly installed on the upper surface of the support columns.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. Through the compression structure, after the sheared debris falls into the recycling box, the servo motor installed inside the protective cover can be started to move the rectangular slider to the middle in the rectangular slide, thereby driving the rectangular extrusion plate to move to the middle, compressing the debris inside the recycling box, avoiding a large amount of storage space waste inside the recycling box, resulting in an increase in the number of recycling boxes, and reducing the investment of economic costs.

[0016] 2. Through the provided lifting structure, when the recycling box moves to the bottom of the debris discharge port of the equipment, the hand wheel can be turned to drive the No. 1 slider fixedly installed in the middle of the two end surfaces of the rectangular lifting plate to slide upward in the No. 2 slide groove, so that the rectangular lifting plate drives the support columns fixedly installed near the four corners of the upper surface to slide upward in the circular sliding holes, thereby driving the recycling box to move upward, so that the recycling bucket fixedly connected in the middle of the upper surface of the recycling box fits tightly with the debris discharge port of the equipment to prevent debris from scattering out from the gap. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of a paper packaging box shearing debris recovery device of the present invention;

[0018] Figure 2 It is a cross-sectional view of a paper packaging box shearing debris recovery device of the present invention;

[0019] Figure 3 It is a partial cross-sectional view of a paper packaging box shearing debris recovery device of the present invention;

[0020] Figure 4 A cross-sectional view of a lifting structure of a paper packaging box shearing debris recovery device of the present invention;

[0021] Figure 5 A paper packaging box shearing debris recovery device according to the present invention Figure 2 Enlarged view of point A in the middle;

[0022] Figure 6 A paper packaging box shearing debris recovery device according to the present invention Figure 3 Enlarged view of point B in the middle;

[0023] Figure 7 A paper packaging box shearing debris recovery device according to the present invention Figure 4 Enlarged view of point C in the middle.

[0024] In the figure: 1. Recycling box; 2. Recycling bucket; 201. Silicone pad; 3. Recycling box door; 301. Box door handle; 4. Rectangular moving seat; 401. Moving wheel; 5. Compression structure; 501. Protective cover; 502. Servo motor; 503. No. 1 bearing; 504. Rectangular transmission groove; 505. Circular transmission rod; 506. Rectangular slide; 507. Rectangular slide; 508. No. 2 bearing; 509. No. 2 umbrella gear; 510. No. 1 umbrella gear; 511. Bidirectional threaded rod; 512. Rectangular transmission groove; 503. Round transmission rod; 504. Rectangular transmission groove; 505. Round transmission rod; 506. Rectangular slide; 507. Rectangular slide; 508. No. 2 bearing; 509. No. 2 umbrella gear; 510. No. 1 umbrella gear; 511. Bidirectional threaded rod; 512. shaped extrusion plate; 6, lifting structure; 601, rotating hand wheel; 602, No. 1 threaded rod; 603, No. 3 bearing; 604, No. 1 slide; 605, rectangular slide; 606, transmission tooth groove; 607, transmission gear; 608, No. 4 bearing; 609, rotating rod; 610, No. 1 folding rod; 611, shaft rod; 612, No. 2 folding rod; 613, No. 1 mounting seat; 614, No. 1 slider; 615, rectangular lifting plate; 616, No. 2 slide; 617, support column; 618, circular sliding hole. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0026] like Figure 1-7 As shown, a paper packaging box shearing debris recovery device comprises a recovery box body 1 and a rectangular movable seat 4. A recovery bucket 2 is fixedly connected to the middle of the upper surface of the recovery box body 1, a silicone pad 201 is fixedly installed on the upper surface of the recovery bucket 2, a recovery box door 3 is movably installed near the lower end of the front surface of the recovery box body 1, a box door handle 301 is fixedly installed near the other end of the front surface of the recovery box door 3, and moving wheels 401 are fixedly installed near the four corners of the lower surface of the rectangular movable seat 4. A compression structure 5 is arranged inside the recovery box body 1, and a lifting structure 6 is arranged inside the rectangular movable seat 4. The compression structure 5 comprises a protective cover 501, a servo motor 502, a No. 1 bearing 503, a rectangular transmission groove 504, a circular transmission rod 505, a rectangular slide groove 506, a rectangular slider 507, a No. 2 bearing 508, a No. 2 umbrella gear 509, a No. 1 umbrella gear 510, a bidirectional threaded rod 511, and a rectangular extrusion plate 512.

[0027] A protective cover 501 is fixedly installed near the other end of the front surface of the recycling box 1, a servo motor 502 is fixedly installed inside the servo motor 502 on the front surface of the recycling box 1, and a circular transmission rod 505 is fixedly connected to the rotating part of the servo motor 502. A rectangular transmission groove 504 is opened near the other end inside the recycling box 1, and a No. 1 bearing 503 is fixedly installed in the middle of the front and rear surfaces of the rectangular transmission groove 504; a circular transmission rod 505 is installed on the No. 1 bearing 503, and a No. 1 bevel gear 510 is fixedly installed on the outer surface of the circular transmission rod 505 near the front and rear ends, and a rectangular slide groove 506 is opened on the front and rear surfaces of the recycling box 1, and a No. 2 bearing 508 is fixedly installed in the middle of the surfaces of both ends of the rectangular slide groove 506. , a bidirectional threaded rod 511 is installed on the No. 2 bearing 508; a No. 2 umbrella-shaped gear 509 is fixedly installed on the other end surface of the bidirectional threaded rod 511, and a No. 1 umbrella-shaped gear 510 fixedly installed on the outer surface of the circular transmission rod 505 near the front and rear ends is meshed with the No. 2 umbrella-shaped gear 509 fixedly installed on the other end surface of the bidirectional threaded rod 511, and a rectangular slider 507 is threadedly installed on the outer surface of the bidirectional threaded rod 511 near both ends, and a rectangular slider 507 is fixedly installed on the front and rear surfaces of the rectangular extrusion plate 512. After the sheared debris falls into the recovery box 1, the servo motor 502 installed inside the protective cover 501 can be started to make the rectangular slider 507 move toward the middle in the rectangular slide groove 506, thereby driving the rectangular extrusion plate 512 to move toward the middle. The plate 512 moves toward the middle to compress the debris inside the recycling box 1, avoiding a large amount of storage space waste inside the recycling box, resulting in an increase in the number of recycling boxes, and reducing the investment in economic costs; the lifting structure 6 includes a rotating hand wheel 601, a No. 1 threaded rod 602, a No. 3 bearing 603, a No. 1 slide 604, a rectangular slide bar 605, a transmission tooth groove 606, a transmission gear 607, a No. 4 bearing 608, a rotating rod 609, a No. 1 folding rod 610, a shaft rod 611, a No. 2 folding rod 612, a No. 1 mounting seat 613, a No. 1 slider 614, a rectangular lifting plate 615, a No. 2 slide 616, a support column 617, and a circular slide hole 618; the inner bottom surface of the rectangular moving seat 4 is provided with a No. Slide groove 604, No. 3 bearing 603 is fixedly installed in the middle of the front and rear surfaces of No. 1 slide groove 604, No. 1 threaded rod 602 is installed on the No. 3 bearing 603, a rotating hand wheel 601 is fixedly installed on the front surface of No. 1 threaded rod 602, and a rectangular slide bar 605 is threadedly installed on the outer surface of No. 1 threaded rod 602; a transmission tooth groove 606 is opened on the upper surface of the rectangular slide bar 605, and No. 4 bearings 608 are fixedly installed on the inner two end surfaces of the rectangular moving seat 4 near the lower end, and a rotating rod 609 is installed on the No. 4 bearing 608, and a transmission gear 607 is fixedly installed in the middle of the rotating rod 609, and the transmission gear 607 fixedly installed in the middle of the rotating rod 609 is meshed with the transmission tooth groove 606 opened on the upper surface of the rectangular slide bar 605;A No. 1 folding rod 610 is fixedly installed near both ends of the outer surface of the rotating rod 609, and a shaft rod 611 is movably installed at the front end of the No. 1 folding rod 610, and a No. 2 folding rod 612 is fixedly installed on the outer surface of the shaft rod 611. A No. 2 slide groove 616 is opened at the upper end of the inner surface of the two ends of the rectangular movable seat 4, and a No. 1 slider 614 is slidably installed in the No. 2 slide groove 616. The No. 1 slider 614 is fixedly installed in the middle of the two end surfaces of the rectangular lifting plate 615; a No. 1 mounting seat 613 is fixedly installed near both ends on the lower surface of the rectangular lifting plate 615, and a No. 2 folding rod 612 is movably installed on the No. 1 mounting seat 613. Support columns 617 are fixedly installed near the four corners of the upper surface of the rectangular lifting plate 615, and the upper surface of the rectangular movable seat 4 Circular sliding holes 618 are provided near the four corners, and support columns 617 are slidably installed in the circular sliding holes 618. The upper surface of the support columns 617 is fixedly installed with a recovery box 1. When the recovery box 1 moves to the bottom of the equipment debris discharge outlet, the rotating hand wheel 601 is turned to drive the No. 1 slider 614 fixedly installed in the middle of the two end surfaces of the rectangular lifting plate 615 to slide upward in the No. 2 slide groove 616, so that the rectangular lifting plate 615 drives the support columns 617 fixedly installed near the four corners on the upper surface to slide upward in the circular sliding holes 618, thereby driving the recovery box 1 to move upward, so that the recovery bucket 2 fixedly connected in the middle of the upper surface of the recovery box 1 is closely fitted with the equipment debris discharge outlet to prevent debris from scattering out from the gap. ;

[0028] It should be noted that the present invention is a paper packaging box shearing debris recovery device. When in use, the device is moved to the bottom of the device, and then the rotating hand wheel 601 is rotated to make the rotating hand wheel 601 drive the No. 1 threaded rod 602 to rotate on the No. 3 bearing 603, so that the rectangular slide 605 threadedly installed on the outer surface of the No. 1 threaded rod 602 slides forward in the No. 1 slide groove 604. Because the transmission tooth groove 606 on the upper surface of the rectangular slide 605 is engaged with the transmission gear 607 fixedly installed in the middle of the outer surface of the rotating rod 609, the rotating rod 609 is driven to rotate in the No. 4 bearing 603. The first folding rod 610 fixedly installed at both ends of the outer surface of the rotating rod 609 rotates, so that the front end of the second folding rod 612 drives the shaft rod 611 to rotate at the front end of the first folding rod 610, so that the rear end of the second folding rod 612 rotates on the first mounting seat 613, and drives the first mounting seat 613 to move upward, driving the first slider 614 fixedly installed at the middle of the two end surfaces of the rectangular lifting plate 615 to slide upward in the second slide groove 616, so that the rectangular lifting plate 615 drives the support columns 617 fixedly installed at the four corners of the upper surface to move in the circular The sheared debris falls into the recovery box 1, and the servo motor 502 installed inside the protective cover 501 is started, so that the rotating part of the servo motor 502 drives the circular transmission rod 505 to rotate on the No. 1 bearing 503, so that the outer surface of the circular transmission rod 505 is close to the No. 1 bevel gear 510 fixedly installed at the front and rear ends to rotate. The No. 1 umbrella-shaped gear 510 fixedly installed at the front and rear ends is meshed with the No. 2 umbrella-shaped gear 509 fixedly installed on the other end surface of the two-way threaded rod 511, thereby driving the two-way threaded rod 511 to rotate on the No. 2 bearing 508, so that the rectangular sliding block 507 installed on the outer surface of the two-way threaded rod 511 near the two ends of the thread slides toward the middle in the rectangular slide groove 506, thereby driving the rectangular extrusion plate 512 to move toward the middle, compressing the debris inside the recycling box 1, avoiding a large amount of storage space waste inside the recycling box, resulting in an increase in the number of recycling boxes, and reducing the economic cost investment.

[0029] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A paper packaging box shearing debris recovery device, characterized in that: The invention comprises a recycling box (1) and a rectangular movable seat (4), wherein a recycling bucket (2) is fixedly connected to the middle of the upper surface of the recycling box (1), a silicone pad (201) is fixedly installed on the upper surface of the recycling bucket (2), a recycling box door (3) is movably installed near the lower end of the front surface of the recycling box (1), a box door handle (301) is fixedly installed near the other end of the front surface of the recycling box door (3), and movable wheels (401) are fixedly installed near the four corners of the lower surface of the rectangular movable seat (4), and the recycling box (1) is fixedly installed with a recycling box door (3) near the other end. ) is provided with a compression structure (5) inside, and a lifting structure (6) is provided inside the rectangular movable seat (4), and the compression structure (5) includes a protective cover (501), a servo motor (502), a first bearing (503), a rectangular transmission groove (504), a circular transmission rod (505), a rectangular slide groove (506), a rectangular slider (507), a second bearing (508), a second umbrella gear (509), a first umbrella gear (510), a bidirectional threaded rod (511), and a rectangular extrusion plate (512).

2. A paper packaging box shearing debris recovery device according to claim 1, characterized in that: A protective cover (501) is fixedly installed on the front surface of the recovery box (1) near the other end, a servo motor (502) is fixedly installed inside the servo motor (502) on the front surface of the recovery box (1), a circular transmission rod (505) is fixedly connected to the rotating part of the servo motor (502), a rectangular transmission groove (504) is opened inside the recovery box (1) near the other end, and a No. 1 bearing (503) is fixedly installed in the middle of the front and rear surfaces of the rectangular transmission groove (504).

3. A paper packaging box shearing debris recovery device according to claim 2, characterized in that: A circular transmission rod (505) is installed on the No. 1 bearing (503), and a No. 1 bevel gear (510) is fixedly installed on the outer surface of the circular transmission rod (505) near the front and rear ends. A rectangular slide groove (506) is opened on the front and rear surfaces inside the recovery box (1), and a No. 2 bearing (508) is fixedly installed in the middle of the two end surfaces of the rectangular slide groove (506), and a bidirectional threaded rod (511) is installed on the No. 2 bearing (508).

4. A paper packaging box shearing debris recovery device according to claim 3, characterized in that: A second umbrella-shaped gear (509) is fixedly mounted on the other end surface of the bidirectional threaded rod (511); a first umbrella-shaped gear (510) is fixedly mounted on the outer surface of the circular transmission rod (505) near the front and rear ends and meshes with the second umbrella-shaped gear (509) fixedly mounted on the other end surface of the bidirectional threaded rod (511); rectangular sliders (507) are threadedly mounted on the outer surface of the bidirectional threaded rod (511) near both ends; and rectangular sliders (507) are fixedly mounted on the front and rear surfaces of the rectangular extrusion plate (512).

5. A paper packaging box shearing debris recovery device according to claim 4, characterized in that: The lifting structure (6) comprises a rotating hand wheel (601), a No. 1 threaded rod (602), a No. 3 bearing (603), a No. 1 slide groove (604), a rectangular slide bar (605), a transmission tooth groove (606), a transmission gear (607), a No. 4 bearing (608), a rotating rod (609), a No. 1 folding rod (610), a shaft rod (611), a No. 2 folding rod (612), a No. 1 mounting seat (613), a No. 1 slider (614), a rectangular lifting plate (615), a No. 2 slide groove (616), a support column (617), and a circular sliding hole (618).

6. A paper packaging box shearing debris recovery device according to claim 5, characterized in that: The inner bottom surface of the rectangular movable seat (4) is provided with a No. 1 slide groove (604), and a No. 3 bearing (603) is fixedly installed in the middle of the front and rear surfaces of the No. 1 slide groove (604), and a No. 1 threaded rod (602) is installed on the No. 3 bearing (603). A rotating hand wheel (601) is fixedly installed on the front surface of the No. 1 threaded rod (602), and a rectangular slide bar (605) is threadedly installed on the outer surface of the No. 1 threaded rod (602).

7. A paper packaging box shearing debris recovery device according to claim 6, characterized in that: The upper surface of the rectangular slide bar (605) is provided with a transmission tooth groove (606), and the inner surfaces of both ends of the rectangular movable seat (4) are fixedly installed with a fourth bearing (608) near the lower end, and a rotating rod (609) is installed on the fourth bearing (608), and a transmission gear (607) is fixedly installed in the middle of the rotating rod (609), and the transmission gear (607) fixedly installed in the middle of the rotating rod (609) is meshed with the transmission tooth groove (606) provided on the upper surface of the rectangular slide bar (605).

8. The paper packaging box shearing debris recovery device according to claim 7, characterized in that: A No. 1 folding rod (610) is fixedly installed near both ends of the outer surface of the rotating rod (609), a shaft rod (611) is movably installed at the front end of the No. 1 folding rod (610), and a No. 2 folding rod (612) is fixedly installed on the outer surface of the shaft rod (611). A No. 2 sliding groove (616) is opened at the upper end of the inner surface of both ends of the rectangular movable seat (4), and a No. 1 sliding block (614) is slidably installed in the No. 2 sliding groove (616), and a No. 1 sliding block (614) is fixedly installed in the middle of the two end surfaces of the rectangular lifting plate (615).

9. A paper packaging box shearing debris recovery device according to claim 8, characterized in that: A No. 1 mounting seat (613) is fixedly mounted near both ends of the lower surface of the rectangular lifting plate (615), a No. 2 folding rod (612) is movably mounted on the No. 1 mounting seat (613), support columns (617) are fixedly mounted near the four corners of the upper surface of the rectangular lifting plate (615), circular sliding holes (618) are opened near the four corners of the upper surface of the rectangular movable seat (4), support columns (617) are slidably mounted in the circular sliding holes (618), and a recovery box (1) is fixedly mounted on the upper surface of the support columns (617).

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