A safe unloading device suitable for assembled building construction

Abstract

The present invention belongs to the field of building construction technology, and in particular, is a safe unloading device suitable for assembled building construction, including a cart, one end of which is rotatably connected to a door, a pair of openings are provided on the door, an arch plate is provided in both openings, a column is fixed at the bottom of the arch plate, a first spring is sleeved on the column, a pair of sliding openings are provided on the upper surface of the door, a slide rod is provided in the sliding opening, a correction plate located on the side of the arch plate is fixed at the top of the slide rod, a pair of guide columns are fixed on the lower surface of the door, and the ends of the guide columns pass through the slide rod. In the present invention, a worker moves the assembled template to the door and pushes the assembled template along the door, and when the assembled template contacts the arch plate, the arch plate is pressed down, and then the arch plate pulls the two correction plates toward the middle through a transmission assembly, thereby correcting the orientation of the assembled template, so that the assembled template can slide into the cart along the direction of the door, thereby accelerating the unloading.

Description

Technical Field

[0001] The invention relates to the technical field of building construction, and in particular to a safe unloading device suitable for assembled building construction. Background Art

[0002] The construction industry is an industry that revolves around the design, construction, decoration and management of buildings. Urban buildings are an important part of the city, and buildings are not just man-made works for people to stay, rest, and entertain themselves. They are closely related to our economy, culture and life. In the construction industry, buildings assembled on site from prefabricated parts are called prefabricated buildings. According to the form and construction method of prefabricated components, they are divided into five types: block buildings, plate buildings, box buildings, skeleton plate buildings and lifting plate and lifting layer buildings.

[0003] In order to solve the problem that "when materials need to be loaded and unloaded to different locations, it is inconvenient to move them", the Chinese patent with publication number CN214329965U discloses an assembled unloading platform for construction, including guide rails, guide rods, rollers and a platform, characterized in that: the rollers are slidably mounted on the guide rails, the rollers are fixed by connecting rods, the guide rods are mounted on the connecting rods between the rollers, a support ring is fixed on the bottom of the guide rod, and a support spring is fixed on the upper surface of the support ring by a spring fixing device. Although the existing technical problems have been solved, the following problems still exist:

[0004] When the unloading platform is in use, it is necessary to manually move the prefabricated buildings on the truck to the unloading platform, which is very labor-intensive and makes the unloading process very slow. Therefore, corresponding improvements are made to address this problem. Summary of the invention

[0005] Based on the technical problems existing in the prior art, the present invention proposes a safe unloading device suitable for prefabricated building construction.

[0006] The present invention proposes a safe unloading device suitable for assembled building construction, including a cart with wheels installed on the bottom, one end of the cart is rotatably connected to a door, a pair of handles are fixed to the lower surface of the door, the door is connected to the cart through a lock assembly, a pair of openings are opened on the door, an arch plate is commonly arranged in the two openings, a plurality of columns passing through the door are fixed to the bottom of the arch plate, a first spring is sleeved on the column, the two ends of the first spring are respectively fixedly connected to the arch plate and the door, a pair of sliding openings symmetrically distributed about the arch plate are opened on the upper surface of the door, a sliding rod is arranged in the sliding opening, a correction plate located on the side of the arch plate is fixed to the top of the sliding rod, and a pair of sliding openings symmetrically distributed about the arch plate are opened on the upper surface of the door. A pair of guide pillars are fixed, and the ends of the guide pillars pass through the sliding rods. When it is necessary to unload on the transport vehicle, the door is opened and tilted to rest on the carriage opening of the transport vehicle. The workers move the prefabricated template to the door and push the prefabricated template along the door. When the prefabricated template contacts the arch plate, the arch plate is pressed down. Then the arch plate pulls the two correcting plates toward the middle through the transmission assembly, thereby correcting the direction of the prefabricated template. In this way, the prefabricated template can slide into the cart along the direction of the door, thereby speeding up the unloading. The arch plate is an arched structure, which can hinder the sliding process of the prefabricated template to a certain extent, thereby causing the prefabricated template to slide slowly.

[0007] Preferably, the lock assembly includes two sleeve rods respectively distributed on the sides of the cart, a pair of guide columns are inserted on the sleeve rods, a third spring is sleeved on one of the guide columns, two ends of the third spring are respectively fixedly connected to the sleeve rod and the cart, a round hole for inserting the handle is opened at the end of the sleeve rod, the door is rotated to a position close to the cart, and then the sleeve rod is pulled outward, the door is continued to be rotated to a closed position, and then the sleeve rod is released, and the sleeve rod is pulled to reset under the action of the third spring, and the handle will be inserted into the round hole, so that the door is fixed.

[0008] Preferably, the transmission assembly includes a pair of vertical plates fixed to the lower surface of the vehicle door, the vertical plates are rotatably connected with a gear rod, the gear rod is meshingly connected with a longitudinal first rack and a transverse second rack, the first rack is fixed to the bottom end of the corresponding column, the second rack is fixedly connected to the slide rod, when the arch plate moves downward, it simultaneously drives the column to move, the column synchronously drives the first rack to move, the first rack meshes to drive the gear rod to rotate, the gear rod meshes to drive the second rack to move inward, and the second rack will synchronously drive the slide rod to move.

[0009] Preferably, the transmission assembly includes two drums located below the vehicle door, the drums are rotatably connected to the vehicle door through a shaft column, a pull rope is wound around the drum, and the two free ends of the pull rope are respectively fixedly connected to the column and the sliding rod, a second spring is sleeved on the guide column, and the two ends of the second spring are respectively fixedly connected to the end of the guide column and the sliding rod, when the arch plate moves downward, it synchronously drives the column to move, the column pulls one end of the pull rope, and the other end of the pull rope pulls the sliding rod inward, when the column is reset, the second spring will push the sliding rod to reset.

[0010] Preferably, a slide rail is fixed at the bottom of the trolley, a pair of sliders are slidably connected in the slide rail, a bidirectional screw is rotatably connected in the slide rail, the bidirectional screw is threadedly connected to the two sliders, a slide frame passing through the trolley is fixed on the top of the slider, a splint is fixed on the inner end of the slide frame, and a plurality of evenly distributed protrusions are provided on the inner surface of the splint. After the assembled formwork is pushed into the trolley, the assembled formwork is maintained in a vertical state, and then the bidirectional screw is rotated to drive the two sliders to move closer to each other, and the slider synchronously drives the slide frame and the splint to move toward the middle, so that the assembled formwork can be clamped and separated by the plurality of protrusions.

[0011] Preferably, a plurality of evenly distributed movable openings are provided on both sides of the trolley, and a herringbone partition rod is rotatably connected in the movable opening. In normal state, half of the partition rod is located inside the trolley, and the other half is located outside the trolley. In this way, the assembled templates in the trolley can be separated from each other by the partition rod. By rotating two opposite partition rods in the same group outward, the assembled templates separated by this group of partition rods can be taken out, and other assembled templates will not be affected.

[0012] Preferably, a magnet capable of attracting the partition rod is embedded in the inner wall of one side of the movable opening. After the partition rod is rotated outward, the inner end of the partition rod is attracted by the magnet and is kept in the movable opening, thereby fixing the partition rod and making it convenient to carry the assembled template.

[0013] Preferably, a groove is provided on the inner wall of one side of the movable opening, and a baffle rod is inserted in the groove. The baffle rod is connected to the inner wall of the groove through a fourth spring, and the outer end of the baffle rod is an arc structure. After the partition rod is rotated outward, the partition rod first pushes the baffle rod into the groove. When the partition rod moves to the outside of the baffle rod, the fourth spring pushes the baffle rod again, and the baffle rod will block the partition rod on the outside, so that the assembled template can be conveniently transported.

[0014] Preferably, a pair of slide columns are fixed to one end of the cart away from the door, a sleeve is sleeved on the slide column, a stud is threadedly connected to the bottom end of the sleeve, a pad is fixed to the bottom end of the stud, the stud is rotated to make the pad touch the ground, and then the pad is moved to the rear of the wheel. When the cart moves backward due to inertia, the slide column will not push the pad backward due to the sliding between the slide column and the sleeve. At this time, the pad remains stationary, so that the wheel will be blocked by the pad when rolling backward.

[0015] Preferably, a notch is provided on the lower surface of the door, and the notch of the door is tilted and placed on the opening of the carriage of the transport vehicle, so that the door is more stable on the carriage and will not slide easily.

[0016] Compared with the prior art, the present invention provides a safe unloading device suitable for prefabricated building construction, which has the following beneficial effects:

[0017] 1. A safe unloading device suitable for prefabricated building construction. By setting an arch plate, when it is necessary to unload on a transport vehicle, the door is opened and tilted to be placed on the carriage opening of the transport vehicle. The worker moves the prefabricated template to the door and pushes the prefabricated template along the door. When the prefabricated template contacts the arch plate, the arch plate is pressed down. Then the arch plate pulls two correcting plates toward the middle through a transmission assembly, thereby correcting the direction of the prefabricated template. In this way, the prefabricated template can slide into the cart along the direction of the door, thereby accelerating the unloading. The arch plate is an arched structure, which can produce a certain obstacle to the sliding process of the prefabricated template, thereby causing the prefabricated template to slide slowly.

[0018] 2. A safe unloading device suitable for prefabricated building construction. By setting a gear rod, when the arch plate moves downward, it synchronously drives the column to move, and the column synchronously drives the first rack to move. The engagement of the first rack drives the gear rod to rotate, and the engagement of the gear rod drives the second rack to move inward, and the second rack will synchronously drive the slide rod to move.

[0019] 3. A safe unloading device suitable for prefabricated building construction. By setting a drum, the arch plate moves downward and simultaneously drives the column to move. The column pulls one end of the pull rope, and the other end of the pull rope will pull the slide bar inward. When the column is reset, the second spring will push the slide bar to reset.

[0020] 4. A safe unloading device suitable for use in prefabricated building construction. By setting a clamping plate, after the prefabricated formwork is pushed into the cart, the prefabricated formwork is kept in a vertical state, and then the bidirectional screw is rotated to drive the two sliders to move closer to each other. The sliders simultaneously drive the slide and the clamping plate to move toward the middle, and the prefabricated formwork can be clamped and separated by multiple protrusions.

[0021] 5. A safe unloading device suitable for use in prefabricated building construction. By setting a partition rod, half of the partition rod is located inside the cart and the other half is located outside the cart under normal conditions. In this way, the prefabricated formwork in the cart can be separated from each other by the partition rod. By rotating two opposite partition rods in the same group outward, the prefabricated formwork separated by this group of partition rods can be taken out, and other prefabricated formworks will not be affected.

[0022] 6. A safe unloading device suitable for use in prefabricated building construction. By setting a magnet, after the partition rod is rotated outward, the inner end of the partition rod is sucked by the magnet and kept in the movable opening, so that the partition rod is fixed, so that the prefabricated formwork can be conveniently carried.

[0023] 7. A safe unloading device suitable for use in prefabricated building construction. By setting a barrier rod, after the partition rod is rotated outward, the partition rod first pushes the barrier rod into the groove. When the partition rod moves to the outside of the barrier rod, the fourth spring pushes the barrier rod out again, and the barrier rod blocks the partition rod to the outside, so that the prefabricated formwork can be conveniently transported.

[0024] 8. A safe unloading device suitable for use in prefabricated building construction. By setting a pad, rotating the stud so that the pad touches the ground, and then moving the pad to the rear of the wheel, when the cart moves backward due to inertia, the sliding post will not push the pad backward due to the sliding between the slide post and the sleeve. At this time, the pad remains stationary, so that the wheel will be blocked by the pad when rolling backward. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic structural diagram of a safety unloading device suitable for assembled building construction proposed by the present invention from a first angle;

[0026] Figure 2 This is a second angle structural schematic diagram of a safety unloading device suitable for assembled building construction proposed by the present invention;

[0027] Figure 3 This is a schematic diagram of a door structure of a safety unloading device suitable for assembled building construction proposed by the present invention;

[0028] Figure 4 This is a schematic diagram of an arch plate structure suitable for a safety unloading device for assembled building construction proposed by the present invention;

[0029] Figure 5 This is a schematic diagram of a gear rod installation structure suitable for a safety unloading device for assembled building construction proposed by the present invention;

[0030] Figure 6 For the present invention Figure 5 A schematic diagram of the enlarged structure at point A;

[0031] Figure 7 This is a schematic diagram of a drum installation structure suitable for a safety unloading device for assembled building construction proposed by the present invention;

[0032] Figure 8 For the present invention Figure 7 A schematic diagram of the enlarged structure at B;

[0033] Fig. 9 This is a schematic diagram of the structure of a cart suitable for safe unloading equipment used in prefabricated building construction proposed by the present invention;

[0034] Fig.10 For the present invention Fig. 9 A schematic diagram of the enlarged structure at C;

[0035] Fig.11 For the present invention Figure 1 A schematic diagram of the structure at D of FIG.

[0036] Fig.12 This is a schematic cross-sectional structure diagram of a cart suitable for safe unloading equipment for assembled building construction proposed by the present invention;

[0037] Fig.13 For the present invention Fig.12 Enlarged structural diagram at E.

[0038] In the figure: 1, cart; 2, door; 3, notch; 4, opening; 5, arch plate; 6, column; 7, first spring; 8, wheel; 9, correction plate; 10, sliding mouth; 11, sliding rod; 12, vertical plate; 13, first rack; 14, gear rod; 15, second rack; 16, guide column; 17, second spring; 18, shaft column; 19, drum; 20, pull rope; 21, slide rail; 22, slider; 23, two-way screw; 24, slide; 25, clamping plate; 26, protrusion; 27, movable mouth; 28, partition rod; 29, magnet; 30, guide column; 31, third spring; 32, sleeve rod; 33, round hole; 34, handle; 35, groove; 36, stop rod; 37, fourth spring; 38, sliding column; 39, sleeve; 40, stud; 41, pad. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0040] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0041] Reference Figure 1-13A safe unloading device suitable for assembled building construction comprises a cart 1 with wheels 8 installed at the bottom, one end of the cart 1 is rotatably connected to a door 2, a pair of handles 34 are fixed to the lower surface of the door 2, the door 2 is connected to the cart 1 through a lock assembly, a pair of openings 4 are provided on the door 2, an arch plate 5 is provided in the two openings 4, a plurality of columns 6 passing through the door 2 are fixed at the bottom of the arch plate 5, a first spring 7 is sleeved on the column 6, the two ends of the first spring 7 are respectively fixedly connected to the arch plate 5 and the door 2, a pair of sliding openings 10 symmetrically distributed about the arch plate 5 are provided on the upper surface of the door 2, a sliding rod 11 is provided in the sliding opening 10, a correction plate 9 located on the side of the arch plate 5 is fixed to the top of the sliding rod 11, and the door A pair of guide posts 16 are fixed to the lower surface of 2, and the ends of the guide posts 16 pass through the slide bar 11. When it is necessary to unload on the transport vehicle, the door 2 is opened and tilted to be placed on the compartment opening of the transport vehicle. The worker moves the assembled template to the door 2 and pushes the assembled template along the door 2. When the assembled template contacts the arch plate 5, the arch plate 5 is pressed down. Then the arch plate 5 pulls the two correcting plates 9 toward the middle through the transmission assembly, thereby correcting the direction of the assembled template. In this way, the assembled template can slide into the cart 1 along the direction of the door 2, thereby accelerating the unloading. The arch plate 5 is an arched structure, which can create a certain obstacle to the sliding process of the assembled template, thereby causing the assembled template to slide slowly.

[0042] Furthermore, the lock assembly includes two sleeve rods 32 respectively distributed on the sides of the cart 1, a pair of guide columns 30 are inserted on the sleeve rods 32, one of the guide columns 30 is sleeved with a third spring 31, and the two ends of the third spring 31 are respectively fixedly connected to the sleeve rod 32 and the cart 1, and a round hole 33 for inserting a handle 34 is opened at the end of the sleeve rod 32. The door 2 is rotated to a position close to the cart 1, and then the sleeve rod 32 is pulled outward, and the door 2 is continued to be rotated to the closed position, and then the sleeve rod 32 is released. Under the action of the third spring 31, the sleeve rod 32 is pulled to reset, and the handle 34 will be inserted into the round hole 33, so that the door 2 is fixed.

[0043] Furthermore, the transmission assembly includes a pair of vertical plates 12 fixed to the lower surface of the vehicle door 2, and a gear rod 14 is rotatably connected to the vertical plate 12. The gear rod 14 is meshingly connected with a longitudinal first rack 13 and a transverse second rack 15. The first rack 13 is fixed to the bottom end of the corresponding column 6, and the second rack 15 is fixedly connected to the slide bar 11. When the arch plate 5 moves downward, it synchronously drives the column 6 to move, and the column 6 synchronously drives the first rack 13 to move. The first rack 13 meshes with the gear rod 14 to rotate, and the gear rod 14 meshes with the second rack 15 to move inward, and the second rack 15 will synchronously drive the slide bar 11 to move.

[0044] Furthermore, the transmission assembly includes two drums 19 located below the vehicle door 2, and the drums 19 are rotatably connected to the vehicle door 2 through the shaft column 18. A pull rope 20 is wound around the drum 19, and the two free ends of the pull rope 20 are respectively fixedly connected to the column 6 and the sliding rod 11. A second spring 17 is sleeved on the guide column 16, and the two ends of the second spring 17 are respectively fixedly connected to the end of the guide column 16 and the sliding rod 11. When the arch plate 5 moves downward, it simultaneously drives the column 6 to move. The column 6 pulls one end of the pull rope 20, and the other end of the pull rope 20 pulls the sliding rod 11 inward. When the column 6 is reset, the second spring 17 pushes the sliding rod 11 to reset.

[0045] Furthermore, a slide rail 21 is fixed to the bottom of the trolley 1, a pair of sliders 22 are slidably connected in the slide rail 21, a bidirectional screw 23 is rotatably connected in the slide rail 21, the bidirectional screw 23 is threadedly connected to the two sliders 22, a slide 24 passing through the trolley 1 is fixed to the top of the slider 22, a splint 25 is fixed to the inner end of the slide 24, and a plurality of evenly distributed protrusions 26 are provided on the inner surface of the splint 25. After the assembled formwork is pushed into the trolley 1, the assembled formwork is maintained in a vertical state, and then the bidirectional screw 23 is rotated to drive the two sliders 22 to move closer to each other, and the slider 22 simultaneously drives the slide 24 and the splint 25 to move toward the middle, so that the assembled formwork can be clamped and separated by the plurality of protrusions 26.

[0046] Furthermore, a plurality of evenly distributed movable openings 27 are provided on both sides of the trolley 1, and a herringbone partition rod 28 is rotatably connected inside the movable opening 27. Under normal circumstances, half of the partition rod 28 is located inside the trolley 1, and the other half is located outside the trolley 1. In this way, the assembled templates in the trolley 1 can be separated from each other by the partition rod 28. By rotating two opposite partition rods 28 of the same group outward, the assembled templates separated by this group of partition rods 28 can be taken out, and other assembled templates will not be affected.

[0047] Furthermore, a magnet 29 capable of attracting the partition rod 28 is embedded in the inner wall of one side of the movable opening 27. After the partition rod 28 is rotated outward, the inner end of the partition rod 28 is attracted by the magnet 29 and maintained in the movable opening 27, thereby fixing the partition rod 28 and making it convenient to carry the assembled formwork.

[0048] Furthermore, a groove 35 is provided on the inner wall of one side of the movable opening 27, and a baffle 36 is inserted in the groove 35. The baffle 36 is connected to the inner wall of the groove 35 through a fourth spring 37. The outer end of the baffle 36 is an arc structure. After the partition rod 28 is rotated outward, the partition rod 28 first pushes the baffle rod 36 into the groove 35. When the partition rod 28 moves to the outside of the baffle rod 36, the fourth spring 37 pushes the baffle rod 36 again, and the baffle rod 36 will block the partition rod 28 on the outside, so that the assembled formwork can be conveniently transported.

[0049] Furthermore, a pair of slide columns 38 are fixed to one end of the cart 1 away from the door 2, and a sleeve 39 is sleeved on the slide column 38. A stud 40 is threadedly connected to the bottom end of the sleeve 39, and a pad 41 is fixed to the bottom end of the stud 40. The stud 40 is rotated to make the pad 41 touch the ground, and then the pad 41 is moved to the rear of the wheel 8. When the cart 1 moves backward due to inertia, the slide column 38 will not push the pad 41 backward due to the sliding between the slide column 38 and the sleeve 39. At this time, the pad 41 remains stationary, so that the wheel 8 will be blocked by the pad 41 when rolling backward.

[0050] Furthermore, a notch 3 is provided on the lower surface of the door 2, and the notch 3 of the door 2 is tilted and placed on the opening of the compartment of the transport vehicle, so that the door 2 is more stable on the compartment and will not slide easily.

[0051] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A safe unloading device suitable for use in prefabricated building construction, comprising a cart (1) with wheels (8) mounted on the bottom, one end of the cart (1) being rotatably connected to a door (2), a pair of handles (34) being fixed to the lower surface of the door (2), characterized in that: The vehicle door (2) is connected to the cart (1) via a lock assembly. A pair of openings (4) are provided on the vehicle door (2). An arch plate (5) is provided in both openings (4). A plurality of upright posts (6) passing through the vehicle door (2) are fixed to the bottom of the arch plate (5). A first spring (7) is sleeved on the upright posts (6). The two ends of the first spring (7) are respectively fixedly connected to the arch plate (5) and the vehicle door (2). A pair of springs (7) are provided on the upper surface of the vehicle door (2) and are symmetrically distributed about the arch plate (5). A sliding opening (10) is provided inside the sliding opening (10), a sliding rod (11) is fixed to the top of the sliding rod (11) and is located on the side of the arch plate (5), a pair of guide pillars (16) are fixed to the lower surface of the vehicle door (2), the ends of the guide pillars (16) pass through the sliding rod (11), and when the assembled template contacts the arch plate (5), the arch plate (5) is pressed downward, and then the arch plate (5) pulls the two correcting plates (9) toward the middle through the transmission component, thereby correcting the orientation of the assembled template; The transmission assembly comprises a pair of vertical plates (12) fixed to the lower surface of the vehicle door (2), a gear rod (14) being rotatably connected to the vertical plates (12), the gear rod (14) being meshingly connected to a longitudinal first gear rack (13) and a transverse second gear rack (15), the first gear rack (13) being fixed to the bottom end of a corresponding column (6), and the second gear rack (15) being fixedly connected to the slide rod (11); Or the transmission assembly comprises two reels (19) located below the vehicle door (2), the reels (19) being rotatably connected to the vehicle door (2) via a shaft column (18), a pull rope (20) being wound around the reels (19), two free ends of the pull rope (20) being respectively fixedly connected to the column (6) and the slide bar (11), a second spring (17) being sleeved on the guide column (16), two ends of the second spring (17) being respectively fixedly connected to the end of the guide column (16) and the slide bar (11).

2. A safe unloading device suitable for prefabricated building construction according to claim 1, characterized in that: The locking assembly comprises two sleeve rods (32) respectively distributed on the sides of the cart (1), a pair of guide posts (30) are inserted into the sleeve rods (32), a third spring (31) is sleeved on one of the guide posts (30), two ends of the third spring (31) are respectively fixedly connected to the sleeve rod (32) and the cart (1), and a round hole (33) for inserting a handle (34) is provided at the end of the sleeve rod (32).

3. The safe unloading equipment suitable for prefabricated building construction according to claim 1 is characterized in that: A slide rail (21) is fixed at the bottom of the cart (1), a pair of sliders (22) are slidably connected in the slide rail (21), a bidirectional screw (23) is rotatably connected in the slide rail (21), the bidirectional screw (23) is threadedly connected to the two sliders (22), a slide frame (24) passing through the cart (1) is fixed on the top of the slider (22), a clamping plate (25) is fixed at the inner end of the slide frame (24), and a plurality of evenly distributed protrusions (26) are provided on the inner surface of the clamping plate (25).

4. The safe unloading equipment for prefabricated building construction according to claim 1 is characterized in that: A plurality of evenly distributed movable openings (27) are provided on both sides of the cart (1), and a herringbone-shaped partition rod (28) is rotatably connected in the movable opening (27).

5. The safe unloading equipment for prefabricated building construction according to claim 4 is characterized in that: A magnet (29) capable of attracting the partition rod (28) is embedded in the inner wall of one side of the movable opening (27).

6. The safe unloading equipment for prefabricated building construction according to claim 4 is characterized in that: A groove (35) is formed on an inner wall of one side of the movable opening (27), a blocking rod (36) is inserted into the groove (35), the blocking rod (36) is connected to the inner wall of the groove (35) via a fourth spring (37), and the outer end of the blocking rod (36) is an arc-shaped structure.

7. The safe unloading equipment for prefabricated building construction according to claim 1 is characterized in that: A pair of slide columns (38) are fixed to one end of the cart (1) away from the door (2), a sleeve (39) is sleeved on the slide column (38), a stud (40) is threadedly connected to the bottom end of the sleeve (39), and a cushion block (41) is fixed to the bottom end of the stud (40).

8. The safe unloading equipment for prefabricated building construction according to claim 1 is characterized in that: A notch (3) is provided on the lower surface of the vehicle door (2).

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