Prefabricated stair transport storage rack

Abstract

The utility model discloses a prefabricated stair transportation storage frame belongs to the building engineering technical field. It solved the problem that the prefabricated stair in prior art lacks special storage frame in the process of transportation or storage. It mainly includes front and rear two sides crossbeam, and the crossbeam is installed with multiple longitudinal beams between the two sides, and the top of longitudinal beam is installed with the supporting plate, and the upside of supporting plate is installed with the buffer pad, and the upside of buffer pad is installed with the wooden board, the crossbeam is installed with at least two vertical beams along its length direction interval, and the top of vertical beam is installed with the plug-in rod, and the bottom of vertical beam is provided with the insertion hole, and the upside of at least two vertical beams in all vertical beams of each crossbeam is rotatably installed with the lifting hook, and the front end face of at least one vertical beam in all vertical beams of each crossbeam is provided with the limiting screw hole, and the limiting screw rod is inserted into the limiting screw hole, and the inner end of limiting screw rod is connected with the limiting plate.

Description

Technical Field

[0001] This utility model belongs to the field of building engineering technology, and more specifically, it relates to a prefabricated staircase transport and storage rack. Background Technology

[0002] Precast stairs, as components of prefabricated buildings, generally need to be pre-cast in a factory, then transported to the construction site by vehicle, stored there, and finally hoisted to the construction site for installation when needed. Currently, precast stairs lack dedicated storage racks during transportation and storage, and are often stored by simply stacking them. Multiple precast stairs are stacked together, with protective measures limited to placing sleepers between adjacent stairs and at the bottom of the lowest staircase. Due to the weight of the precast stairs, the combined weight of multiple stairs presses down on the bottom staircase, causing it to bear greater pressure and making it prone to cracking or even breaking during transportation. Summary of the Invention

[0003] The purpose of this utility model is to provide a prefabricated staircase transport and storage rack to overcome the problem in the prior art that prefabricated staircases lack dedicated storage racks during transportation or storage.

[0004] This utility model is achieved using the following technical solution: a prefabricated staircase transport and storage rack includes front and rear side beams, with multiple longitudinal beams spaced apart between the side beams. A support plate is installed on the top of each longitudinal beam, and a buffer pad is installed on the upper side of the support plate. A wooden board is installed on the upper side of the buffer pad. At least two vertical beams are spaced apart along the length of each beam. A plug is installed on the top of each vertical beam, and a plug hole is opened at the bottom of the vertical beam. At least two of the vertical beams of each beam have hooks rotatably installed on their upper sides. At least one of the vertical beams of each beam has a limiting threaded hole on its front end face, and a limiting screw is inserted into the limiting threaded hole. The inner end of the limiting screw is connected to a limiting plate.

[0005] Furthermore, the bottom of the vertical beam extends downward beyond the horizontal beam; the buffer pad is made of rubber.

[0006] Furthermore, the crossbeam is equipped with three vertical beams spaced apart along its length; and hooks are rotatably installed on the upper side of the leftmost vertical beam and the upper side of the rightmost vertical beam of each crossbeam; and limit threaded holes are respectively opened on the front end face of the leftmost vertical beam and the front end face of the rightmost vertical beam of each crossbeam.

[0007] Furthermore, multiple baffles are installed at intervals along the length of the left and right sides of the support plate, and the buffer pad and wooden board are located between the baffles on the left and right sides.

[0008] Furthermore, the working surface of the limiting plate is fitted with a rubber layer.

[0009] Furthermore, the outer end of the limiting screw is connected to a rotating handle.

[0010] Furthermore, the left and right end faces of the crossbeam are respectively provided with a left telescopic hole and a right telescopic hole, into which a left telescopic rod and a right telescopic rod are respectively inserted. The crossbeam is provided with a left external fixing hole and a right external fixing hole to the left and right of the left telescopic hole, respectively. The left telescopic rod is provided with multiple left internal fixing holes that mate with the left external fixing holes at intervals along its length. A bolt and nut are installed between the left external fixing hole and one of the left internal fixing holes. The right telescopic rod is provided with multiple right internal fixing holes that mate with the right external fixing holes at intervals along its length. A bolt and nut are installed between the right external fixing hole and one of the right internal fixing holes. A left vertical rod is installed at the left end of the left telescopic rod, and a left limiting rod is installed between the two left vertical rods. A right vertical rod is installed at the right end of the right telescopic rod, and a right limiting rod is installed between the two right vertical rods.

[0011] Furthermore, the outer sides of both the left and right limiting rods are covered with a rubber layer.

[0012] Furthermore, three longitudinal beams are installed at intervals between the crossbeams on both sides.

[0013] Compared with the prior art, the beneficial effects of this utility model are: This utility model is used for the transportation and storage of prefabricated stairs, solving the problem of the lack of special storage racks for prefabricated stairs during transportation or storage.

[0014] When the prefabricated stair transport and storage rack is used, multiple prefabricated stair transport and storage racks can be stacked together, and one prefabricated stair is placed on each prefabricated stair. When multiple prefabricated staircases are placed at vertical intervals, the prefabricated staircases on the upper side will not press on the prefabricated staircases on the lower side, thereby effectively avoiding cracking and breakage of the prefabricated staircases due to stacking during transportation and storage.

[0015] This utility model can limit the front and rear of the prefabricated stairs placed on the prefabricated stairs transport and storage rack by setting a limiting threaded rod and a limiting plate. By setting a left limiting rod and a right limiting rod, the prefabricated stairs placed on the prefabricated stairs transport and storage rack can be limited in the up, down, left and right directions, thereby making the prefabricated stairs more stable on the prefabricated stairs transport and storage rack. Attached Figure Description

[0016] Figure 1 This is a perspective view of the present invention from a top-down perspective; Figure 2 This is a perspective view of the present invention from a downward angle; Figure 3 and Figure 4 These are diagrams showing the usage status of this utility model.

[0017] In the diagram: 1. Horizontal beam; 2. Longitudinal beam; 3. Support plate; 4. Buffer pad; 5. Wooden board; 6. Vertical beam; 7. Insert rod; 8. Insertion hole; 9. Hook; 10. Limiting screw; 11. Limiting plate; 12. Baffle; 13. Rotating handle; 14. Left telescopic rod; 15. Right telescopic rod; 16. Left inner fixing hole; 17. Right inner fixing hole; 18. Left vertical rod; 19. Left limiting rod; 20. Right vertical rod; 21. Right limiting rod. Detailed Implementation

[0018] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort should fall within the scope of protection of this utility model.

[0019] A prefabricated staircase transport and storage rack includes front and rear side beams 1, with multiple longitudinal beams 2 installed at intervals between the side beams 1. Further, three longitudinal beams 2 are installed at intervals between the side beams 1, and the longitudinal beams 2 are respectively arranged perpendicular to the side beams 1.

[0020] At least two vertical beams 6 are installed at intervals along the length of the crossbeam 1. Furthermore, each crossbeam 1 is equipped with three vertical beams 6 at intervals along its length. The vertical beams 6 pass downward through the crossbeam 1, so that the bottom of the vertical beams 6 extends downward beyond the crossbeam 1. The left and right sides of the vertical beams 6 are welded to the crossbeam 1 respectively. The vertical beams 6 are set perpendicular to the crossbeam 1, and the vertical beams 6 on the two sides of the crossbeam 1 are symmetrically arranged.

[0021] A support plate 3 is installed on the top of the longitudinal beam 2. A buffer pad 4 is installed on the upper side of the support plate 3. A wooden board 5 is installed on the upper side of the buffer pad 4. Furthermore, multiple baffles 12 are installed at intervals along the length direction on the left and right sides of the support plate 3. The buffer pad 4 and the wooden board 5 are located between the baffles 12 on the left and right sides. The buffer pad 4 is made of rubber.

[0022] The wooden board 5 and the buffer pad 4 of this invention are stacked on the support plate 3 of the longitudinal beam 2. The support plate 3 is welded and fixed to the top of the longitudinal beam 2. Multiple stiffening plates are installed on the left and right sides between the bottom of the support plate 3 and the longitudinal beam 2, respectively. The stiffening plates connect the support plate 3 and the longitudinal beam 2, strengthening the connection between the support plate 3 and the longitudinal beam 2. The wooden board 5 and the buffer plate of this invention are located between the left and right side baffles 12, which limit the movement of the wooden board 5.

[0023] In application, the prefabricated staircase is placed on the wooden board 5 on the three longitudinal beams 2. The prefabricated staircase is in direct contact with the wooden board 5. The buffer pad 4 plays a buffering role between the support plate 3 and the wooden board 5, reducing the impact of bumps on the prefabricated staircase during transportation.

[0024] The top of the vertical beam 6 is equipped with a plug rod 7, and the bottom of the vertical beam 6 is provided with a plug hole 8. The outer diameter of the plug rod 7 is slightly smaller than the inner diameter of the plug hole 8. In application, multiple prefabricated stair transport and storage racks are stacked together. The plug rods 7 at the top of all the vertical beams 6 of the lower prefabricated stair transport and storage rack are respectively inserted into the corresponding plug holes 8 on the adjacent upper prefabricated stair transport and storage rack, so that the two adjacent prefabricated stair transport and storage racks are stably stacked together.

[0025] At least two of the vertical beams 6 of each horizontal beam 1 are rotatably mounted on their tops with hooks 9. When three vertical beams 6 are installed at intervals along the length of the horizontal beam 1, hooks 9 are rotatably mounted on the upper side of the leftmost vertical beam 6 and the upper side of the rightmost vertical beam 6 of each horizontal beam 1. The hooks 9 on both sides of the horizontal beam 1 are symmetrically arranged. The hooks 9 are rotatably mounted on the upper side of the vertical beams 6 through a pivot. When the hooks 9 are needed, they are rotated upwards. When the hooks 9 are not needed, they are lowered. In application, the hoisting equipment lifts the prefabricated stair transport and storage rack through the hooks 9, and then lifts the prefabricated staircase on the prefabricated stair transport and storage rack.

[0026] At least one of the vertical beams 6 in each horizontal beam 1 has a limiting threaded hole on its front end face. A limiting screw 10 is inserted into the limiting threaded hole, and the inner end of the limiting screw 10 is connected to a limiting plate 11. The working surface of the limiting plate 11 is equipped with a rubber layer, which is the surface of the limiting plate 11 that contacts the prefabricated staircase. By installing a rubber layer on the working surface of the limiting plate 11, damage to the surface of the prefabricated staircase can be minimized. The rubber layer can be vulcanized to the limiting plate 11. The limiting plate 11 can be rotatably installed on the inner end of the limiting screw 10, or it can be fixedly installed on the inner end of the limiting screw 10. The outer end of the limiting screw 10 is connected to a rotating handle 13. This utility model allows for convenient rotation of the limiting screw 10 by setting a rotating handle 13. When three vertical beams 6 are installed at intervals along the length of the horizontal beam 1, limiting threaded holes are respectively opened on the front end face of the leftmost vertical beam 6 and the front end face of the rightmost vertical beam 6 of each horizontal beam 1.

[0027] This utility model can limit the front and rear movement of the prefabricated staircase by setting a limiting screw 10 and a limiting plate 11, so that the prefabricated staircase cannot easily move back and forth relative to this utility model. Before the prefabricated staircase is placed in this utility model, the limiting plates 11 on both sides are first rotated outward to the outermost side. After the prefabricated staircase is placed on the wooden board 5 on the multiple longitudinal beams 2, the limiting screw 10 is rotated inward by the handle, thereby moving the limiting plate 11 inward until the limiting plate 11 contacts the prefabricated staircase.

[0028] The left and right ends of the crossbeam 1 are respectively provided with a left telescopic hole and a right telescopic hole. A left telescopic rod 14 and a right telescopic rod 15 are respectively inserted into the left telescopic hole and the right telescopic hole. The crossbeam 1 is provided with a left external fixing hole and a right external fixing hole on the left side of the left telescopic hole and the right side of the right telescopic hole, respectively.

[0029] Both sides of the left telescopic rod 14 are provided with multiple left inner fixing holes 16 that mate with the left outer fixing holes along their length. A bolt and nut are installed between the left outer fixing hole and one of the left inner fixing holes 16. When it is necessary to fix the left telescopic rod 14 and the crossbeam 1 relative to each other, the bolt needs to be passed through the left outer fixing hole and one of the multiple left inner fixing holes 16, and the bolt is tightened with a nut. By connecting the left outer fixing hole with different left inner fixing holes 16, the extension length of the left telescopic rods 14 on both sides can be adjusted.

[0030] The right telescopic rods 15 on both sides are provided with multiple right inner fixing holes 17 that mate with the right outer fixing holes along their length. Bolts and nuts are installed between the right outer fixing holes and one of the right inner fixing holes 17. When it is necessary to fix the right telescopic rods 15 and the crossbeam 1 relative to each other, the bolts need to be passed through the right outer fixing holes and one of the right inner fixing holes 17, and the bolts are screwed on with nuts. By connecting the right outer fixing holes with different right inner fixing holes 17, the extension length of the right telescopic rods 15 on both sides can be adjusted.

[0031] A left vertical rod 18 is installed at the left end of the left telescopic rod 14, and a left limiting rod 19 is installed between the two left vertical rods 18. The left telescopic rod 14 and the left vertical rod 18 have an L-shaped structure. A right vertical rod 20 is installed at the right end of the right telescopic rod 15, and a right limiting rod 21 is installed between the two right vertical rods 20. The right telescopic rod 15 and the right vertical rod 20 have an L-shaped structure. The outer sides of both the left limiting rod 19 and the right limiting rod 21 are covered with a rubber layer. By covering the outer sides of both the left limiting rod 19 and the right limiting rod 21 with a rubber layer, this utility model provides cushioning and reduces damage to the surface of the precast staircase when the left limiting rod 19 and the right limiting rod 21 come into contact with the precast staircase.

[0032] The left limiting rod 19 and right limiting rod 21 of this utility model can work together to restrict the vertical and horizontal displacement of the prefabricated staircase. Before the prefabricated staircase is placed in this utility model, we first move the left limiting rod 19 and right limiting rod 21 to their outermost positions. After the prefabricated staircase is placed on the wooden planks 5 on the multiple longitudinal beams 2, by adjusting the extension length of the left telescopic rod 14 and right telescopic rod 15, the left limiting rod 19 and right limiting rod 21 are brought close to the inclined surfaces on the left and right sides of the prefabricated staircase, respectively. This also allows the left limiting rod 19 and right limiting rod 21 to contact the inclined surfaces on the left and right sides of the prefabricated staircase.

[0033] The process of using this utility model: When transporting prefabricated stairs, we first place them into this utility model using hoisting equipment. During placement, the prefabricated stairs are first placed on the wooden planks 5 of the multiple longitudinal beams 2, and the length direction of the prefabricated stairs is made as parallel as possible to the crossbeams 1. Then, the limiting screw 10 is rotated inward by the handle, thereby moving the limiting plate 11 inward until the rubber layer on the limiting plate 11 contacts the prefabricated stairs. Then, by adjusting the extension length of the left telescopic rod 14 and the right telescopic rod 15, the left limiting rod 19 and the right limiting rod 21 are brought close to the inclined surfaces on the left and right sides of the prefabricated stairs, respectively. Alternatively, the left limiting rod 19 and the right limiting rod 21 can be brought into contact with the inclined surfaces on the left and right sides of the prefabricated stairs, respectively. Then, the prefabricated stair transport and storage racks containing the prefabricated stairs are hoisted onto the truck bed. During hoisting, multiple prefabricated stair transport and storage racks are stacked sequentially. When stacking, the inserts 7 at the top of all the vertical beams 6 of the lower prefabricated stair transport and storage rack are inserted into the corresponding inserts 8 on the adjacent upper prefabricated stair transport and storage rack, thus ensuring that adjacent prefabricated stair transport and storage racks are stably stacked together. Finally, the multiple prefabricated stair transport and storage racks are secured to the truck bed using ropes and other fasteners. During unloading, the multiple prefabricated stair transport and storage racks are unloaded from the truck bed in a top-to-bottom order.

[0034] When it is necessary to lift the prefabricated staircase from the prefabricated staircase transport and storage rack, first move the multiple limiting plates 11, the left limiting rod 19 and the right limiting rod 21 outward, and then lift the prefabricated staircase.

Claims

1. A prefabricated staircase transport and storage rack, characterized in that, The system includes front and rear crossbeams (1), with multiple longitudinal beams (2) spaced between the crossbeams (1) on both sides. A support plate (3) is installed on the top of the longitudinal beams (2), and a buffer pad (4) is installed on the upper side of the support plate (3). A wooden board (5) is installed on the upper side of the buffer pad (4). At least two vertical beams (6) are spaced along the length of the crossbeam (1). A plug rod (7) is installed on the top of the vertical beam (6), and a plug hole (8) is opened at the bottom of the vertical beam (6). At least two vertical beams (6) of all the vertical beams (6) of each crossbeam (1) are rotatably installed on the upper side of the hook (9). At least one vertical beam (6) of all the vertical beams (6) of each crossbeam (1) has a limit thread hole on its front end face, and a limit screw (10) is inserted into the limit thread hole. The inner end of the limit screw (10) is connected to a limit plate (11).

2. The prefabricated staircase transport and storage rack according to claim 1, characterized in that, The bottom of the vertical beam (6) extends downward beyond the horizontal beam (1); the buffer pad (4) is made of rubber.

3. The prefabricated staircase transport and storage rack according to claim 1, characterized in that, The crossbeam (1) is equipped with three vertical beams (6) at intervals along its length; and hooks (9) are rotatably installed on the upper side of the leftmost vertical beam (6) and the upper side of the rightmost vertical beam (6) of each crossbeam (1); and limit thread holes are respectively opened on the front end face of the leftmost vertical beam (6) and the front end face of the rightmost vertical beam (6) of each crossbeam (1).

4. The prefabricated staircase transport and storage rack according to claim 1, characterized in that, Multiple baffles (12) are installed at intervals along the length of the left and right sides of the support plate (3), and the buffer pad (4) and the wooden board (5) are located between the baffles (12) on the left and right sides.

5. The prefabricated staircase transport and storage rack according to claim 1, characterized in that, The working surface of the limiting plate (11) is equipped with a rubber layer.

6. The prefabricated staircase transport and storage rack according to claim 1, characterized in that, The outer end of the limiting screw (10) is connected to the rotating handle (13).

7. The prefabricated staircase transport and storage rack according to claim 1, characterized in that, The left and right ends of the crossbeam (1) are respectively provided with a left telescopic hole and a right telescopic hole. A left telescopic rod (14) and a right telescopic rod (15) are respectively inserted into the left telescopic hole and the right telescopic hole. The crossbeam (1) is provided with a left external fixing hole and a right external fixing hole on the left side of the left telescopic hole and the right side of the right telescopic hole, respectively. The left telescopic rod (14) is provided with a plurality of left internal fixing holes (16) that cooperate with the left external fixing holes along its length direction. The left external fixing hole and one of the left internal fixing holes (16) are connected by a left telescopic rod. Install bolts and nuts. The right telescopic rod (15) is provided with multiple right inner fixing holes (17) that cooperate with the right outer fixing hole along its length direction. Install bolts and nuts between the right outer fixing hole and one of the right inner fixing holes (17). Install the left vertical rod (18) at the left end of the left telescopic rod (14). Install the left limit rod (19) between the two left vertical rods (18). Install the right vertical rod (20) at the right end of the right telescopic rod (15). Install the right limit rod (21) between the two right vertical rods (20).

8. The prefabricated staircase transport and storage rack according to claim 7, characterized in that, The outer sides of the left limiting rod (19) and the right limiting rod (21) are both covered with a rubber layer.

9. The prefabricated staircase transport and storage rack according to any one of claims 1-8, characterized in that, Three longitudinal beams (2) are installed at intervals between the two transverse beams (1).

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