Harbor spiral loading and unloading equipment

Abstract

The invention belongs to the technical field of transportation equipment, and particularly relates to port spiral loading and unloading equipment which comprises a carrying box, inner clamping equipment is uniformly arranged on the inner wall of the carrying box, and a loading component is arranged at the bottom of the inner clamping equipment; the inner clamping equipment comprises a surrounding bottom frame, and vertical push cylinders are symmetrically arranged on the front side and the rear side of an inner cavity of the surrounding bottom frame. According to the device, cargoes carried by the lifting claw are contained through the hollow box shell, when the cargoes are stacked in the hollow box shell, due to the fact that the placed cargoes are difficult to be just matched with the interior of the hollow box shell, more space is reserved in the hollow box shell, but the stacked cargoes are prone to shaking in the transportation process, and the cargoes are not prone to falling off. In order to solve the problem that goods are prone to collision due to the fact that the goods are stacked in the hollow box shell, push plate components used for further limiting are arranged on the periphery of the hollow box shell, the stability of the goods is guaranteed by fixing the tops and the side edges of the stacked goods, and therefore the problems are avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of transportation equipment, in particular to a port spiral loading and unloading equipment. Background Art

[0002] Port container cargo handling refers to the method of loading and unloading containers as cargo units, using special machinery for loading and unloading container vehicles and ships, stacking, destacking and transshipping containers in the yard. It is highly efficient, with less damage and loss of goods, and can meet the requirements of safe loading and unloading. At present, most port container cargo loading and unloading will use auxiliary tools such as boarding cars and scissor lifts, which improves the loading and unloading efficiency to a certain extent. Therefore, port container intelligent auxiliary loading and unloading is an indispensable type of auxiliary equipment.

[0003] When existing loading and unloading equipment is used for transportation, the placed goods and the loaded containers are usually not compatible with each other. Therefore, in order to ensure that different cargo transportation needs are met as much as possible, the components used for loading are usually larger. This causes the goods placed inside the carrier to be prone to shaking during transportation. In severe cases, the stacked goods may collapse and be damaged, so improvements are needed. Summary of the invention

[0004] In view of the shortcomings of the prior art, the present invention solves the technical problems by adopting a technical solution: a port spiral loading and unloading device, comprising a cargo box, the inner wall of the cargo box is evenly provided with inner clamping devices, and the bottom of the inner clamping device is provided with a load-bearing component; The inner clamping device comprises a surrounding bottom frame, and vertical push cylinders are symmetrically arranged on the front and rear sides of the inner cavity of the surrounding bottom frame, and the top of the vertical push cylinder is fixedly connected to a push plate component through a connecting rod, and guide rails are symmetrically arranged on the left and right sides of the surrounding bottom frame. The bottom of the push plate component is slidably connected to the inner wall of the guide rail through a connecting rod. The push plate components on the left and right sides are responsible for limiting the sides of the internal goods, and the push plate components on the front and rear sides are responsible for stabilizing the top or bottom of the internal goods; The push plate component includes a casing motor, a threaded rotating rod is inserted on the outer surface of the casing motor shaft, and the threaded rotating rod can slide relative to the casing motor shaft. The side of the threaded rotating rod away from the casing motor is threadedly connected with a sliding jacket, and the upper and lower sides of the outer surface of the sliding jacket are symmetrically provided with guide side plates, and the side of the outer surface of the sliding jacket close to the cargo box is evenly provided with embedded rolling balls, and the end of the threaded rotating rod away from the casing motor is fixedly connected with an axial pressure plate, and the two sides of the outer surface of the axial pressure plate are symmetrically provided with limited stoppers, and the casing motors on the left and right sides can slide along the horizontal direction under the control of the push plate component, and the casing motors on the front and rear sides can slide along the vertical direction under the control of the vertical push cylinder. The cargo box includes a hollow box shell, and the front and rear sides of the hollow box shell are symmetrically provided with vertical guide grooves, and the left and right sides of the hollow box shell are symmetrically provided with horizontal guide grooves, and the outer surface of the hollow box shell is evenly provided with limited sliding grooves, and the bottom of the hollow box shell is fixedly connected with a suspension leg.

[0005] Furthermore, the number of the push plate components is four, the outer surface of the sliding sleeve is slidably connected to the outer surface of the hollow box shell through the embedded rolling ball, the end of the guide side plate away from the casing motor is slidably connected to the outer surface of the hollow box shell through the limiting slide groove, after the guide side plate is inserted into the limiting slide groove, the sliding sleeve cannot rotate, and can only slide along the limiting slide groove, so the threaded rotating rod can perform a spiral propulsion movement along the threaded groove on the inner wall of the sliding sleeve, and the inner wall of the axial pressure plate is slidably connected to the inner wall of the hollow box shell through the inner slide cylinder. The bottom of the casing motor is fixedly connected to the top of the connecting rod, the bottom of the suspension leg is fixedly connected to the upper surface of the load-bearing component, the lower surface of the surrounding bottom frame is fixedly connected to the upper surface of the load-bearing component, and the outer surface of the limiting baffle is slidably connected to the inner wall of the hollow box shell.

[0006] Furthermore, the load-bearing component includes an expansion bottom box, the upper surface of which is fixedly connected with a large support plate, an inner push device is provided at the axis of the inner wall of the expansion bottom box, and storage roller legs are symmetrically provided on the left and right sides of the outer surface of the expansion bottom box. The storage roller legs include a propulsion sleeve, the bottom end of the propulsion sleeve output shaft is fixedly connected with a rotation joint, the outer surface of the rotation joint is rotationally connected with a deflection swivel block, the end of the deflection swivel block away from the expansion bottom box is rotationally connected with a control wheel, the end of the deflection swivel block close to the expansion bottom box is rotationally connected with a limited rotation plate, when the deflection swivel block is in a horizontal state, the bottom of the expansion bottom box contacts the ground, and the device is fixed on the ground at this time, when the propulsion sleeve pushes the deflection swivel block downward, the deflection swivel block lifts the expansion bottom box upward through the control wheel, and then moves by rotating the control wheel. The top of the propulsion sleeve is fixedly connected to the lower surface of the large support plate, the outer surface of the limit rotating plate is fixedly connected to the side of the expansion bottom box, and the outer surface of the rotating joint is rotatably connected to the top of the inner cavity of the deflection rotating block through a rotating groove.

[0007] Further, the inner push device includes a guide slide, the bottom end of which is fixedly connected to a sealing plate, the inner wall of which is slidably connected to a solid push rod, the top end of which is fixedly connected to an axis tray, the front and rear sides of the outer surface of the axis tray are fixedly connected to an adjustment chassis via sliding connecting rods, the bottom end of the solid push rod is fixedly connected to a bending traction plate via a pull plate, and the upper part of the outer surface of the bending traction plate is threadedly connected to a tension box. There are four tension boxes, the upper surface of which is fixedly connected to the lower surface of the large pallet, the outer surface of the guide slide is fixedly connected to the axis of the inner cavity of the large pallet via an axis center opening, the top end of the solid push rod extends to the inside of the hollow box shell, and the upper surface of the sealing plate is fixedly connected to the axis of the lower surface of the large pallet.

[0008] The beneficial effects of the present invention are as follows: 1. The device uses a hollow box shell to accommodate the goods transported by the lifting claw. When the goods are piled up inside the hollow box shell, more space is reserved inside the hollow box shell because the placed goods are difficult to fit exactly into the interior of the hollow box shell. However, this will cause the stacked goods to shake easily during transportation, which in turn may cause the goods to collide easily. Therefore, push plate components for further limiting the position are arranged around the hollow box shell. By fixing the top and sides of the stacked goods, the stability of the goods is ensured, thereby avoiding the above-mentioned problems.

[0009] 2. The limit baffles that are in direct contact with the outer surface of the cargo are equipped with a pressure rod structure. When the limit baffles contact and squeeze the cargo, the lateral pressure of the limit baffles on the cargo can be determined by pressing the limit baffles, thereby ensuring that the limit baffles can surround the cargo while avoiding the problem of excessive squeezing force of the limit baffles on the cargo, causing serious deformation and damage to the cargo under pressure.

[0010] 3. The push plate parts on the front and rear sides and the push plate parts on the left and right sides of the device have different positions for restricting the goods and are staggered in vertical height to avoid the problem that the limit baffles are surrounded together and the plate body is stuck and cannot move flexibly. At the same time, the movement of the limit baffle is controlled by rotating the threaded rotating rod, so that the limit baffle can be slowly and steadily advanced, thereby better regulating the distance moved by the limit baffle and avoiding the problem that the limit baffle is advanced too fast and difficult to adjust the speed.

[0011] 4. When using lifting equipment to take out the goods inside the device, the goods piled at the bottom will be difficult to be clamped by the crane arm due to the obstruction of the hollow box shell. At this time, it is necessary to push the bottom goods upward through the inner push device at the bottom, and then the crane arm can clamp to the top of the goods, making it easier to be carried away by the top suspension claw, preventing the problem of the goods sinking to the bottom being difficult to carry and consuming a lot of manpower and material resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a front view of the present invention; Figure 2 is a cross-sectional view of the present invention; Figure 3 It is a schematic structural diagram of the inner clamping device of the present invention; Figure 4 It is a structural schematic diagram of the push plate component of the present invention; Figure 5 It is a schematic structural diagram of the cargo box of the present invention; Figure 6 It is a schematic diagram of the structure of the load-bearing component of the present invention; Figure 7 is an enlarged view of the storage roller leg of the present invention; Figure 8 It is a structural schematic diagram of the internal push device of the present invention; Fig. 9 is a cross-sectional view of the axial pressure plate of the present invention; Fig.10 It is a structural schematic diagram of the rotary joint of the present invention; Fig.11 It is a cross-sectional view of the rotary joint of the present invention.

[0013] In the figure: 1, cargo box; 2, internal clamping device; 3, load-bearing component; 21, surrounding bottom frame; 22, vertical push cylinder; 23, guide rail; 24, connecting rod; 4, push plate component; 41, housing motor; 42, threaded rotating rod; 43, sliding outer sleeve; 44, embedded ball; 45, guide side plate; 46, axial pressure plate; 47, limit baffle; 11, hollow box shell; 12, suspension leg; 13, horizontal guide groove; 14, Vertical guide groove; 15, limit slide; 31, expansion bottom box; 32, large pallet; 33, storage roller leg; 331, propulsion sleeve; 332, rotating joint; 333, deflection turn block; 334, limit turn plate; 335, control turn wheel; 5, inner push device; 51, guide slide; 52, axis tray; 53, adjustment base frame; 54, sealing plate; 55, solid push rod; 56, tension box; 57, bending traction plate. DETAILED DESCRIPTION

[0014] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

[0015] Example 1, please refer to Figure 1-Figure 5 The present invention provides a technical solution: a port spiral loading and unloading device, comprising a cargo box 1, the inner wall of the cargo box 1 is evenly provided with inner clamping devices 2, and the bottom of the inner clamping device 2 is provided with a load-bearing component 3; The inner clamping device 2 includes a surrounding bottom frame 21, and vertical push cylinders 22 are symmetrically arranged on the front and rear sides of the inner cavity of the surrounding bottom frame 21. The top of the vertical push cylinder 22 is fixedly connected to a push plate component 4 through a connecting rod 24. Guide rails 23 are symmetrically arranged on the left and right sides of the surrounding bottom frame 21. The bottom of the push plate component 4 is slidably connected to the inner wall of the guide rail 23 through the connecting rod 24. The push plate components 4 on the left and right sides are responsible for limiting the sides of the internal goods, and the push plate components 4 on the front and rear sides are responsible for stabilizing the top or bottom of the internal goods. The push plate component 4 includes a housing motor 41, such as Figure 4As shown, the shell motor 41 is divided into an outer shell and an inner rotating motor. The guide slide rail 23 at the bottom drives the outer shell to pull the shell motor 41 as a whole to slide along the inner wall of the guide slide rail 23 through the traction ropes on both sides of the inner wall. A threaded rotating rod 42 is inserted on the outer surface of the rotating shaft of the shell motor 41. The threaded rotating rod 42 is threadedly connected to a sliding sleeve 43 on the side away from the shell motor 41. Guide side plates 45 are symmetrically arranged on the upper and lower sides of the outer surface of the sliding sleeve 43. Embedded rolling balls 44 are evenly arranged on the side of the outer surface of the sliding sleeve 43 close to the cargo box 1. The end of the threaded rotating rod 42 away from the shell motor 41 is fixedly connected to an axial pressure plate 46. Limiting baffles 47 are symmetrically arranged on both sides of the outer surface of the axial pressure plate 46. The shell motors 41 on the left and right sides can slide in the horizontal direction under the control of the push plate component 4, and the shell motors 41 on the front and rear sides can slide in the vertical direction under the control of the vertical push cylinder 22. The cargo box 1 includes a hollow box shell 11, vertical guide grooves 14 are symmetrically opened on the front and rear sides of the hollow box shell 11, horizontal guide grooves 13 are symmetrically opened on the left and right sides of the hollow box shell 11, and limiting slide grooves 15 are evenly opened on the outer surface of the hollow box shell 11. The bottom of the hollow box shell 11 is fixedly connected with a suspension leg 12.

[0016] There are four push plate components 4. The outer surface of the sliding sleeve 43 is slidably connected to the outer surface of the hollow box shell 11 through the embedded rolling ball 44. The end of the guide side plate 45 away from the sleeve motor 41 is slidably connected to the outer surface of the hollow box shell 11 through the limiting slide groove 15. After the guide side plate 45 is inserted into the limiting slide groove 15, the sliding sleeve 43 cannot rotate and can only slide along the limiting slide groove 15, so the threaded rotating rod 42 can be spirally pushed along the thread groove of the inner wall of the sliding sleeve 43. The inner wall of the axial pressure plate 46 is slidably connected to the inner wall of the hollow box shell 11 through the inner slide cylinder. The bottom of the sleeve motor 41 is fixedly connected to the top of the connecting rod 24, the bottom of the suspension leg 12 is fixedly connected to the upper surface of the load-bearing component 3, the lower surface of the surrounding bottom frame 21 is fixedly connected to the upper surface of the load-bearing component 3, and the outer surface of the limiting baffle 47 is slidably connected to the inner wall of the hollow box shell 11.

[0017] When the device is used for loading and unloading of port cargo, the cargo is first dropped into the cargo box 1 in sequence by the lifting claws so that the cargo is stacked together inside the cargo box 1, and then the internal clamping device 2 is used to limit the dropped cargo.

[0018] For the inner clamping device 2 on the front and rear sides, the vertical push cylinder 22 at the bottom pushes its housing motor 41 upwards through the push rod, at which time the sliding outer sleeve 43 slides upwards along the limiting slide groove 15 through the guide side plates 45 on both sides, and the threaded rotating rod 42 also slides upwards through the vertical guide groove 14. Then, when the highest point of the stacked goods is reached, the housing motor 41 is controlled to thread the threaded rotating rod 42, and the axial pressure plate 46 and the limiting baffle 47 slide in the direction close to the goods under the thrust of the threaded rotating rod 42. At this time, the inner shell of the axial pressure plate 46 is elongated to prevent the axial pressure plate 46 from twisting; the limiting baffles 47 on the front and rear sides clamp the top of the goods; Axial pressure plate 46 Fig. 9 As shown, the inner shell portion, i.e., the portion marked in FIG. A, can perform relative rotation and relative sliding motion relative to the main casing, and when the threaded rotating rod 42 rotates, the top portion thereof away from the casing motor 41 will rotate relative to the axial groove of the main casing of the axial pressure plate 46, thereby achieving the effect of advancing the main casing of the axial pressure plate 46 and lengthening the inner shell; For the inner clamping devices 2 on the left and right sides, the push plate component 4 at the bottom pushes the housing motor 41 horizontally, so that the threaded rotating rod 42 slides along the horizontal guide groove 13, ensuring that the limit baffles 47 on both sides in the vertical state can face the lateral axis position of the stacked goods, and then the clamping and limiting work is performed.

[0019] Example 2, please refer to Figure 1-Figure 11 The present invention provides a technical solution: on the basis of embodiment one, the load-bearing component 3 includes an extended bottom box 31, a large support plate 32 is fixedly connected to the upper surface of the extended bottom box 31, an inner pushing device 5 is arranged at the axis center of the inner wall of the extended bottom box 31, and storage roller legs 33 are symmetrically arranged on the left and right sides of the outer surface of the extended bottom box 31. The storage roller leg 33 includes a propulsion sleeve 331, the bottom end of the output shaft of the propulsion sleeve 331 is fixedly connected with a rotating joint 332, the outer surface of the rotating joint 332 is rotatably connected with a deflection turn block 333, the end of the deflection turn block 333 away from the expansion bottom box 31 is rotatably connected with a control wheel 335, and the end of the deflection turn block 333 close to the expansion bottom box 31 is rotatably connected with a limiting turn plate 334. When the deflection turn block 333 is in a horizontal state, the bottom of the expansion bottom box 31 contacts the ground. At this time, the device is fixed on the ground. When the propulsion sleeve 331 pushes the deflection turn block 333 downward, the deflection turn block 333 lifts the expansion bottom box 31 upward through the control wheel 335, and then moves by rotating the control wheel 335. The top of the push sleeve 331 is fixedly connected to the lower surface of the large support plate 32, the outer surface of the limit rotating plate 334 is fixedly connected to the side of the expansion bottom box 31, and the outer surface of the rotating joint 332 is rotatably connected to the top of the inner cavity of the deflection rotating block 333 through the rotating groove. Fig.10As shown, the overall structure is a spherical structure, and the bottom end of the push sleeve 331 is sleeved on the axial center of the inner wall of the rotating joint 332, as shown in FIG. Fig.11 As shown, during the downward movement of the rotating joint 332, its outer surface rotates along the inner cavity of the deflection rotating block 333. At this time, the bottom end of the thrust sleeve 331 will also rotate relative to the axis of the inner wall of the rotating joint 332, so that the rotating joint 332 and the top of the inner cavity of the deflection rotating block 333 can realize the rotation of the rotating wheel, that is, the above technical solution can be realized.

[0020] The inner push device 5 includes a guide slide 51, the bottom end of which is fixedly connected to a sealing plate 54, the inner wall of the guide slide 51 is slidably connected to a solid push rod 55, the top of the solid push rod 55 is fixedly connected to an axis tray 52, the front and rear sides of the outer surface of the axis tray 52 are fixedly connected to an adjustment base frame 53 through a sliding connecting rod 24, the bottom end of the solid push rod 55 is fixedly connected to a bending traction plate 57 through a pull plate, the upper part of the outer surface of the bending traction plate 57 is threadedly connected to a tension box 56, and the tension box 56 controls the bending traction plate 57 of the inner wall to perform directional sliding movement by threaded advancement. There are four tension boxes 56, the upper surface of the tension box 56 is fixedly connected to the lower surface of the large pallet 32, the outer surface of the guide slide 51 is fixedly connected to the axis of the inner cavity of the large pallet 32 ​​through the axis center opening, the top end of the solid push rod 55 extends to the interior of the hollow box shell 11, and the upper surface of the sealing plate 54 is fixedly connected to the axis of the lower surface of the large pallet 32.

[0021] After the cargo is fixed inside the hollow box shell 11, the propulsion sleeves 331 on both sides of the extended bottom box 31 slowly push the internal rod body downward by spiral propulsion, thereby pushing the deflection turn block 333 downward. At this time, the deflection turn block 333 deflects downward around the limit turn plate 334, and then the control wheel 335 is controlled to contact the ground to lift the extended bottom box 31 upward. At this time, the extended bottom box 31 is suspended at a certain height from the ground, and then the control wheel 335 can be used to drive the device to slide along the ground, thereby achieving the effect of transferring cargo.

[0022] When using a lifting device to take out the goods inside the device, the goods piled at the bottom will be difficult to be clamped by the crane arm due to the obstruction of the hollow box shell 11. At this time, the goods at the bottom need to be pushed upward by the inner pushing device 5 at the bottom. The tension box 56 drives the solid push rod 55 to slide up by pulling the bent traction plate 57, and then the solid push rod 55 slides upward along the guide slide 51, pushing the axis tray 52 and the adjustment base frame 53 on both sides to rise. Since the goods are lifted by the adjustment base frame 53 and the axis tray 52 at this time, the goods will rise relative to the hollow box shell 11, making it easier to be carried away by the suspension claws at the top.

[0023] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A port spiral loading and unloading device, comprising a cargo box (1), the inner wall of the cargo box (1) is evenly provided with inner clamping devices (2), and the bottom of the inner clamping device (2) is provided with a load-bearing component (3), characterized in that: The inner clamping device (2) comprises a surrounding bottom frame (21), vertical push cylinders (22) are symmetrically arranged on the front and rear sides of the inner cavity of the surrounding bottom frame (21), the top of the vertical push cylinder (22) is fixedly connected to a push plate component (4) via a connecting rod (24), and guide rails (23) are symmetrically arranged on the left and right sides of the surrounding bottom frame (21), and the bottom of the push plate component (4) is slidably connected to the inner wall of the guide rail (23) via a connecting rod (24); The push plate component (4) comprises a casing motor (41), a threaded rotating rod (42) is inserted into the outer surface of the rotating shaft of the casing motor (41), a side of the threaded rotating rod (42) away from the casing motor (41) is threadedly connected to a sliding sleeve (43), upper and lower sides of the outer surface of the sliding sleeve (43) are symmetrically provided with guide side plates (45), a side of the outer surface of the sliding sleeve (43) close to the cargo box (1) is evenly provided with embedded rolling balls (44), one end of the threaded rotating rod (42) away from the casing motor (41) is fixedly connected to an axial pressure plate (46), and limit baffles (47) are symmetrically provided on both sides of the outer surface of the axial pressure plate (46).

2. The port screw loading and unloading equipment according to claim 1, characterized in that: The cargo box (1) comprises a hollow box shell (11), vertical guide grooves (14) are symmetrically provided on the front and rear sides of the hollow box shell (11), horizontal guide grooves (13) are symmetrically provided on the left and right sides of the hollow box shell (11), limiting sliding grooves (15) are evenly provided on the outer surface of the hollow box shell (11), and a suspension leg (12) is fixedly connected to the bottom of the hollow box shell (11).

3. The port screw loading and unloading equipment according to claim 2 is characterized in that: The number of the push plate components (4) is four, the outer surface of the sliding sleeve (43) is slidably connected to the outer surface of the hollow box shell (11) via an embedded ball (44), the end of the guide side plate (45) away from the sleeve motor (41) is slidably connected to the outer surface of the hollow box shell (11) via a limiting slide groove (15), and the inner wall of the axial pressure plate (46) is slidably connected to the inner wall of the hollow box shell (11) via an inner slide cylinder.

4. The port screw loading and unloading equipment according to claim 3 is characterized by: The bottom of the casing motor (41) is fixedly connected to the top of the connecting rod (24), the bottom of the suspension leg (12) is fixedly connected to the upper surface of the load-bearing component (3), the lower surface of the surrounding bottom frame (21) is fixedly connected to the upper surface of the load-bearing component (3), and the outer surface of the limit baffle (47) is slidably connected to the inner wall of the hollow box shell (11).

5. The port screw loading and unloading equipment according to claim 1, characterized in that: The load-bearing component (3) comprises an extended bottom box (31), the upper surface of which is fixedly connected to a large support plate (32), an inner pushing device (5) is arranged at the axis of the inner wall of the extended bottom box (31), and storage roller legs (33) are symmetrically arranged on the left and right sides of the outer surface of the extended bottom box (31).

6. The port screw loading and unloading equipment according to claim 5, characterized in that: The storage roller leg (33) comprises a propulsion sleeve (331), the bottom end of the output shaft of the propulsion sleeve (331) is fixedly connected to a rotation joint (332), the outer surface of the rotation joint (332) is rotationally connected to a deflection rotating block (333), one end of the deflection rotating block (333) away from the expansion bottom box (31) is rotationally connected to a control rotating wheel (335), and one end of the deflection rotating block (333) close to the expansion bottom box (31) is rotationally connected to a limit rotating plate (334).

7. The port screw loading and unloading equipment according to claim 6, characterized in that: The top of the propulsion sleeve (331) is fixedly connected to the lower surface of the large support plate (32), the outer surface of the limit rotating plate (334) is fixedly connected to the side of the expansion bottom box (31), and the outer surface of the rotating joint (332) is rotatably connected to the top of the inner cavity of the deflection rotating block (333) through a rotating groove.

8. The port screw loading and unloading equipment according to claim 7, characterized in that: The inner push device (5) comprises a guide slide (51), the bottom end of which is fixedly connected to a sealing plate (54), the inner wall of which is slidably connected to a solid push rod (55), the top end of which is fixedly connected to an axis tray (52), the front and rear sides of the outer surface of the axis tray (52) are fixedly connected to an adjustment base frame (53) via a sliding connecting rod (24), the bottom end of the solid push rod (55) is fixedly connected to a bending traction plate (57) via a pulling plate, and the upper part of the outer surface of the bending traction plate (57) is threadedly connected to a tension box (56).

9. The port screw loading and unloading equipment according to claim 8, characterized in that: The number of the tension boxes (56) is four, the upper surface of the tension box (56) is fixedly connected to the lower surface of the large support plate (32), the outer surface of the guide slide (51) is fixedly connected to the axis of the inner cavity of the large support plate (32) through the axis center opening, the top end of the solid push rod (55) extends to the inside of the hollow box shell (11), and the upper surface of the sealing plate (54) is fixedly connected to the axis of the lower surface of the large support plate (32).

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