Hoist for steel truss ceiling slabs

Abstract

Hoist for steel lattice girder ceiling panels, comprising a storage box (1), wherein the bottom of the storage box (1) is rotatably connected to a box door (101) and that a plurality of tension rods (102) are fixedly attached to the ends of the storage box (1), and that first support plates (103) are arranged in the storage box (1), the number of first support plates (103) being more than one; wherein a fastening unit (110) is fixedly connected to the surface of the box door (101).

Description

[0001] The present invention relates to the technical field of lifting technology in construction, in particular a lifting device for steel truss ceiling slabs.

[0002] With socio-economic development, steel construction technology in China has made rapid progress. In the field of ceiling construction, steel truss ceiling panels have become established due to their advantages such as energy efficiency, high effectiveness, cost-effectiveness, and safety, and are increasingly used in structural steel engineering projects. These are composite load-bearing panels in which steel trusses and a base membrane are joined together by resistance spot welding – this is known as a steel truss ceiling panel. After processing, the steel truss ceiling panels are typically bundled into stacks with cable ties and transported to the construction site using tower cranes.

[0003] Steel truss ceiling slabs are a type of column-free, profiled composite ceiling slab. The steel trusses are pre-formed in the factory. During on-site construction, the profiled sheets must first be attached to the steel beams using dowels. The steel trusses are then installed and connected. After acceptance testing, the concrete is poured. This allows for mechanized production, promotes uniform reinforcement spacing and consistent thickness of the concrete protective layer, and thus improves the overall quality of the ceiling slab.

[0004] Currently, the following problems arise when transporting steel truss ceiling panels with existing lifting equipment: Several ceiling panels are stacked directly on top of each other, which means that the lower panels are subjected to the pressure of the upper panels during transport and therefore suffer damage.

[0005] For this reason, a lifting device for steel truss ceiling slabs is proposed, which solves the problems mentioned above.

[0006] In order to remedy the shortcomings of the existing technology and to solve at least one technical problem from the prior art, this invention proposes a lifting device for steel truss girder ceiling slabs.

[0007] The technical solution by which this invention solves the technical problem is as follows: A lifting device for steel truss ceiling panels according to this invention, comprising a storage box, wherein the bottom of the storage box is rotatably connected to a box door, several tie rods are fixedly attached to the ends of the storage box, first support plates are arranged in the storage box; wherein the number of first support plates is more than one; and wherein a fastening unit is fixedly attached to the surface of the box door; in this way, the first support plate separates the steel truss ceiling panels from one another and stores them separately, thereby preventing the steel truss ceiling panels from being subjected to compressive forces.

[0008] Preferably, the fastening unit comprises a pair of L-hooks, wherein the fastening unit includes a pair of recessed plates; wherein a pair of square plates are rigidly connected to the surface of the recessed plate, and a wrench is rotatably mounted in the square plate; wherein a pair of vertical rods are rigidly connected to the side wall of the wrench; a U-shaped rod is rotatably mounted at the end of the vertical rod; wherein the U-shaped rods and the L-hooks are arranged correspondingly; thereby, the box door is firmly fixed to the storage box by the positive locking connection between the U-shaped rods and the L-hooks. This resists vibrations, shocks, or external tensile forces more effectively, reduces the risk of loosening, and is also user-friendly.

[0009] Preferably, a rotary rod is rotatably connected in the bearing box, wherein a thread is fixedly attached to the surface of the rotary rod; wherein a rotary block is attached to one end of the rotary rod; wherein a square block is rotatably mounted on the rotary rod, which is fixedly connected to the first support plate; thereby, the height of the center of the first support plate can be adjusted via the rotary rod, thus enabling the storage of ceiling panels of different heights.

[0010] Preferably, a second support plate is slidably connected in the bearing box, wherein a groove is provided in the side wall of the bearing box and in the inner wall of the second support plate, wherein the number of grooves is more than one; thereby, the second support plate supports the central area of ​​the ceiling plate and thus ensures - in addition to the basic support provided by the first support plate - a further stabilized bearing.

[0011] Preferably, an auxiliary block is fixedly attached to the lower areas of both side walls of the storage box, wherein an auxiliary rod is fixedly attached in the auxiliary block; thereby the auxiliary rope runs through the auxiliary rod in the auxiliary block and thus supports the stabilization of the storage box during the lifting process in the air.

[0012] Preferably, several cable pull rods are fixedly attached to the ends of the storage box, with elastic cables being fixedly attached to the surface of the cable pull rods; with fastening hooks being attached to the ends of the elastic cables; with several hollow rods being fixedly attached to the ends of the storage box; with several fastening blocks being fixedly attached to the side walls of the storage box; with pull hook rods being fixedly attached in the fastening blocks; with the pull hook rods and the fastening hooks being arranged accordingly; thereby, the elastic cable secures the uppermost layer of the steel truss ceiling panels, with the design of the fastening hooks facilitating the disassembly process after transport.

[0013] The advantages of this invention are as follows: 1. The lifting device for steel truss ceiling panels described in this invention uses a first support plate to separate and position the steel truss ceiling panels, thereby preventing them from being squeezed together. 2. In the lifting device for steel truss ceiling panels described in this invention, the box door is stably fixed to the bearing box by the positive locking connection of the U-shaped rod with the L-hook; this construction resists vibrations, shocks and external tensile forces more effectively, reduces the risk of loosening and also ensures user-friendly handling. Fig. Figure 1 shows a schematic representation of the main body of the present invention. Fig. Figure 2 shows a schematic representation of the structure of a groove of the present invention. Fig. Figure 3 shows a schematic representation of the structure of a second support plate of the present invention. Fig. Figure 4 shows a schematic representation of the structure of a rotary rod of the present invention. Fig. Figure 5 shows a schematic representation of the structure of an L-hook of the present invention.

[0014] Specific embodiments are described below.

[0015] As in Fig. As shown in Figures 1 to 5, this invention provides a lifting device for steel truss ceiling panels, comprising a storage box 1, wherein the bottom of the storage box 1 is rotatably connected to a box door 101; wherein several tie rods 102 are fixedly attached to the ends of the storage box 1, and first support plates 103 are arranged in the storage box 1, wherein the number of first support plates 103 is more than one; and a fastening unit 110 is fixedly connected to the surface of the box door 101; during operation, the box door 101 is opened via the fastening unit 110, the steel truss ceiling panels are placed one after the other on the first support plate 103 in the storage box 1, the first support plate 103 separating the panels from one another; subsequently, the box door 101 is closed to the storage box 1 via the fastening unit 110, thereby separating and fixing the steel truss ceiling panels.Transport is carried out by means of a crane by guiding the lifting cable through the tie rod 102; this ensures that the first support plate 103 provides separate storage for the ceiling panels and effectively prevents pressure loads on the steel truss ceiling panels.

[0016] As in Fig. 1 and Fig. As shown in Figure 5, the fastening unit 110 comprises a pair of L-hooks 2 and a pair of recessed plates 201. A pair of square plates 202 are fixedly connected to the surface of the recessed plate 201, and a wrench 203 is rotatably mounted in the square plate 202. A pair of vertical rods 204 are fixedly connected to the side wall of the wrench 203. A U-shaped rod 205 is rotatably mounted at the end of the vertical rod 204. The U-shaped rods 205 and the L-hooks 2 are arranged correspondingly. During operation, the box door 101 is positioned and rotated to fasten it to the storage box 1. Subsequently, the wrench 203 is actuated on the recessed plate 201, which moves the U-shaped rod 205 until it engages positively with the L-hook 2.By applying further pressure to the wrench 203, the locking mechanism between the U-shaped rod 205 and the L-hook 2 is tightened; the same steps are repeated on the opposite side; this securely fixes the box door 101 to the bearing box 1 by means of the positive locking of the U-shaped rod 205 with the L-hook 2, and this construction resists vibrations, shocks and external tensile forces more effectively, reduces the risk of loosening and also ensures user-friendly handling.

[0017] As in Fig. As shown in Figures 1 to 4, a rotary rod 3 is rotatably connected in the storage box 1, with a thread 301 being fixedly attached to the surface of the rotary rod 3; a rotary block 302 is attached to one end of the rotary rod 3; a square block 303 is rotatably mounted on the rotary rod 3 and is fixedly connected to the first support plate 103; during operation, when loading and transporting ceiling panels of different heights, the rotary block 302 can be rotated to rotate the thread 301 on the rotary rod 3; this causes the square block 303 to move vertically up and down along the rotation of the thread 301, and by removing the rotary block 302, several first support plates 103 can be removed from the thread 301 and subsequently positioned at different intervals;This adjustment allows for an increase in the spacing between the first support plates 103, thereby optimizing the support of ceiling panels of different heights on the first support plates 103; this allows the height of the spacing between the first support plates 103 to be adjusted via the rotary rod 3, thus enabling the support of ceiling panels of different heights.

[0018] As in Fig. As shown in Figures 1 to 3, a second support plate 4 is slidably connected in the storage box 1; and a groove 401 is provided in the side wall of the storage box 1 and in the inner wall of the second support plate 4, wherein the number of grooves 401 is more than one; during operation, after the ceiling panel is placed on the first support plate 103, the second support plate 4 and the groove 401 are aligned; by inserting the dowel pin into the groove 401, the second support plate 4 is fixed in the storage box 1, and this arrangement enables the second support plate 4 to support the central area of ​​the ceiling panel, thus preventing the ceiling panel from vibrating or bending during transport due to the central clearance; in this way, the second support plate 4 supports the central area of ​​the ceiling panel and thus ensures – in addition to the basic support provided by the first support plate 103 – a further stabilized bearing.

[0019] As in Fig. As shown in Figures 1 to 3, an auxiliary block 5 is fixedly attached to the lower areas of each of the two side walls of the storage box 1, with an auxiliary rod 501 being fixedly attached to each auxiliary block 5; during operation, before the lifting process with the crane, the auxiliary ropes are guided through the auxiliary rods 501 in the auxiliary blocks 5 attached to both sides of the storage box 1; when the storage box 1 is lifted by the crane, the auxiliary ropes on the left and right sides of the storage box 1 stabilize the storage box 1 and thus prevent oscillations of the storage box 1 due to wind action during transport in the air; in this way, the auxiliary ropes run through the auxiliary rods 501 in the auxiliary blocks 5 and thus contribute to the stabilization of the storage box 1 during the lifting process in the air.

[0020] As in Fig.As shown in Figure 4, several cable pull rods 6 are fixedly attached to the ends of the storage box 1, with elastic cables 601 being fixedly attached to the surface of the cable pull rods 6; fastening hooks 602 are attached to the ends of the elastic cables 601; several hollow rods 603 are fixedly attached to the ends of the storage box 1; several mounting blocks 604 are fixedly attached to the side walls of the storage box 1; pull hook rods 605 are fixedly attached in the mounting blocks 604; the pull hook rods 605 and the mounting hooks 602 are arranged accordingly; during operation, the elastic cable 601 is tensioned, guided through the hollow rod 603, and then the mounting hook 602 is hooked onto the pull hook rod 605 in the mounting block 604;The elastic cable 601 secures the top layer of the steel truss ceiling panels, while the design of the fastening hooks 602 facilitates disassembly after transport.

[0021] Function: The box door 101 is opened via the fastening unit 110 to place the steel truss ceiling panels one after the other onto the first support plate 103 in the storage box 1; the first support plate 103 separates the ceiling panels from each other; the box door 101 is then closed to the storage box 1 via the fastening unit 110, thereby separating and securely fixing the steel truss ceiling panels; transport is finally carried out by guiding a lifting cable through the pull rod 102 and using a crane; to attach the box door 101, it is first rotated against the storage box 1, then the wrench 203 is turned on the recessed plate 201, which moves the U-shaped rod 205 until it engages positively with the L-hook 2;By additionally pressing the wrench 203, the locking between the U-shaped rod 205 and the L-hook 2 is strengthened, and the same steps are to be repeated on the opposite side; When loading and transporting ceiling panels of different heights, the swivel block 302 can be rotated to rotate the thread 301 on the swivel rod 3, thereby causing the square block 303 to move vertically up and down synchronously with the rotation of the thread 301; by removing the swivel block 302, several first support plates 103 can be removed from the thread 301, after which individual first support plates 103 can be arranged at different intervals; this adjustment increases the space between the first support plates 103 and thus enables the storage of ceiling panels of different heights on the first support plates 103;After the roof panels have been placed on the first support panel 103, the second support panel 4 is positioned by corresponding arrangement with the grooves 401, and connecting rods are inserted into the grooves 401, thereby fixing the second support panel 4 in the storage box 1, thus enabling the second support panel 4 to support the central area of ​​the roof panels, so that the roof panels do not swing or bend during transport due to the central gap;Before the lifting process with the crane, the auxiliary ropes are guided through the auxiliary rods 501 into the auxiliary blocks 5 attached to both sides of the bearing box 1. When the bearing box 1 is lifted, the auxiliary ropes on the left and right sides of the bearing box 1 stabilize the bearing box 1 and prevent oscillations of the bearing box 1 caused by wind. In addition, the elastic rope 601 is tensioned, guided through the hollow rod 603, and the fastening hook 602 is attached to the drawbar 605 in the fastening block 604. Reference symbol list: 1 storage box 101 Box door 102 Pull rod 103 first support plate 110 fastening unit 2 L-hooks 201 Trough plate 202 square plates 203 wrenches 204 vertical bars 205 U-shaped rod 3 rotating rod 301 thread 302 Rotary block 303 square block 4 second support plate 401 Nut 5 Auxiliary block 501 Auxiliary rod 6 pulley bar 601 elastic rope 602 fastening hooks 603 Hollow bar 604 Mounting block 605 Tow hook rod

Claims

[1] Lifting device for steel truss ceiling slabs, comprising a storage box (1), wherein the bottom of the storage box (1) is rotatably connected to a box door (101), and that several tie rods (102) are fixedly attached to the ends of the storage box (1), and that first support plates (103) are arranged in the storage box (1), wherein the number of first support plates (103) is more than one; wherein a fastening unit (110) is fixedly attached to the surface of the box door (101). [2] Lifting device for steel truss ceiling slabs according to claim 1, characterized by, that the fastening unit (110) comprises a pair of L-hooks (2) and that the fastening unit (110) comprises a pair of recessed plates (201); wherein a pair of square plates (202) is fixedly connected to the surface of the recessed plate (201), wherein a wrench (203) is rotatably mounted in the square plate (202); wherein a pair of vertical rods (204) is fixedly connected to the side wall of the wrench (203); a U-shaped rod (205) is rotatably mounted at the end of the vertical rod (204); wherein the U-shaped rods (205) and the L-hooks (2) are arranged correspondingly. [3] Lifting device for steel truss ceiling slabs according to claim 2, characterized by, that a rotary rod (3) is rotatably connected in the bearing box (1), wherein a thread (301) is fixedly attached to the surface of the rotary rod (3); wherein a rotary block (302) is attached to one end of the rotary rod (3); wherein a square block (303) is rotatably mounted on the rotary rod (3), which is fixedly connected to the first support plate (103). [4] Lifting device for steel truss ceiling slabs according to claim 3, characterized by , that a second support plate (4) is slidably connected in the bearing box (1); and that a groove (401) is provided in the side wall of the bearing box (1) and in the inner wall of the second support plate (4), wherein the number of grooves (401) is more than one. [5] Lifting device for steel truss ceiling slabs according to claim 4, characterized by, that an auxiliary block (5) is fixedly attached to each of the lower areas of the two side walls of the storage box (1), wherein an auxiliary rod (501) is fixedly attached to each auxiliary block (5). [6] Lifting device for steel truss ceiling slabs according to claim 5, characterized by , that several cable pull rods (6) are fixedly attached to the ends of the storage box (1), wherein elastic cables (601) are fixedly attached to the surface of the cable pull rods (6); wherein fastening hooks (602) are attached to the ends of the elastic cables (601); wherein several hollow rods (603) are fixedly attached to the ends of the storage box (1); wherein several fastening blocks (604) are fixedly attached to the side walls of the storage box (1); in which pull hook rods (605) are fixedly attached; and the pull hook rods (605) and the fastening hooks (602) are arranged accordingly.

Images