WO2023184882A1

WO2023184882A1 - Material lifting device

Info

Publication number: WO2023184882A1
Application number: PCT/CN2022/118873
Authority: WO
Inventors: 莫斐; 卢佳华; 沈慧华; 曹峰; 曹旭栋; 汤毅; 谈天; 谷月
Original assignee: 上海市安装工程集团有限公司
Priority date: 2022-03-29
Filing date: 2022-09-15
Publication date: 2023-10-05
Also published as: CN114572901A

Abstract

Disclosed are a material lifting device, comprising: a movable chassis; a fixed mast which is vertically arranged on the movable chassis; a lifting mast which is slidably arranged in the length direction of the fixed mast; a material bracket which is vertically and slidably arranged on the lifting mast and is parallel to the movable chassis; and a power control system which comprises a control box arranged on one side of the fixed portal frame, and a hydraulic cylinder connected to the control box and connected between the bottom end of the fixed mast and the top end of the lifting mast. The power control system further comprises a guide chain mechanism for driving the material bracket to ascend and descend. The guide chain mechanism is arranged in the fixed mast and the lifting mast and located on the two sides of the hydraulic cylinder. The guide chain mechanism on each side comprises a chainwheel arranged at the top end of the lifting mast and a chain engaged with the chainwheel. A first end of the chain is connected to the material bracket, and the second end of the chain is connected to the upper end of the fixed mast. The method saves time and labor, is easy to lift and stable, and has high lifting efficiency, reliability and safety.

Description

Material lifting device

Technical field

The invention relates to the field of construction engineering machinery, and in particular to a material lifting device.

Background technique

In high-rise and super-high-rise buildings such as residential and commercial buildings, the pipelines distributed in high-rise or super-high-rise buildings are intricately distributed. Most of the various equipment and pipelines in the computer room have large diameters and heavy weights, which requires a lot of hoisting and lifting work during the installation process. Big, difficult and dangerous. As for the installation and upgrading of horizontal integrated pipelines in electromechanical systems, especially steel pipelines with large diameters and heavy weights, traditional methods such as hoists and cranes are still used because they need to be installed on each floor of a super high-rise building. During the process of lifting materials, the hoist crane is prone to inconsistent lifting speeds on both sides, resulting in unbalanced gravity and tilting of the clamp, causing danger. The hoist crane is also inefficient and time-consuming and labor-intensive. However, forklifts are not suitable for use on construction floors due to their heavy load capacity and large size. Therefore, the lifting construction of single pipelines, modular pipelines, bridges and other materials of motor systems in high-rise and super-high-rise buildings has shortcomings such as difficulty, low efficiency, high risk, and limitations of space environment.

Contents of the invention

The technical problem to be solved by the present invention is to provide a material lifting device with low lifting difficulty, high efficiency, low safety risk and suitable for limited space environment.

In order to solve the above technical problems, the technical solution of the present invention is: a material lifting device, including:

Mobile chassis, set horizontally;

A fixed gantry is vertically installed on the movable chassis;

The lifting mast is slidably arranged along the length direction of the fixed mast;

A material bracket is slidably arranged vertically on the lifting mast and parallel to the mobile chassis;

The power control system includes a control box provided on one side of the fixed mast, and a hydraulic cylinder connected to the control box. The hydraulic cylinder is located within the fixed mast and the lifting mast and is connected to the fixed mast. between the bottom end of the mast and the top of the lifting mast; it also includes a chain guide mechanism for driving the lifting operation of the material bracket, the chain guide mechanism is arranged within the fixed mast and the lifting mast and Distributed on both sides of the hydraulic cylinder, the chain guide mechanism on each side includes a sprocket arranged on the top of the lifting mast, engaging a chain connected to the sprocket, and the first end of the chain is connected to The second end of the chain on the material bracket is connected to the upper end of the fixed door frame.

Further, in the material lifting device provided by the present invention, the fixed gantry includes a horizontally arranged bottom plate, vertical stands arranged at both ends of the said bottom plate, and side top plates arranged on one side of the top ends of the two said standing stands. A push-pull armrest is provided on the stand, and the push-pull armrest is located on one side of the control box.

Further, in the material lifting device provided by the present invention, the fixed door frame further includes a reinforcing plate disposed between the two stands near the side top plate; the second end of the chain is connected to the fixed door. The side roof panel of the rack or the reinforcement panel.

Furthermore, in the material lifting device provided by the present invention, the fixed mast also includes a protective plate, and the protective plate surrounds the hydraulic cylinder and is arranged between the two vertical frames.

Further, in the material lifting device provided by the present invention, the mobile base frame includes a balance arm and a mounting plate arranged on the fixed gantry and distributed on both sides of the fixed gantry, and the end of the balance arm is provided with a Rollers, a universal wheel is provided below the installation plate; the control box is provided on the installation plate.

Further, in the material lifting device provided by the present invention, the lifting mast includes two lifting frames slidably arranged on the vertical frame, and a top frame connected between the top ends of the two lifting frames.

Further, in the material lifting device provided by the present invention, the material bracket includes an adapter frame slidably provided on the lifting mast and a bracket provided on the adapter frame, the brackets are distributed horizontally and Located on the opposite side of the control box.

Further, in the material lifting device provided by the present invention, the bracket is provided with evenly distributed jacks parallel to both sides of the lifting mast, and the jacks on both sides are optionally provided with aligned and distributed material cards. claw.

Furthermore, the material lifting device provided by the present invention also includes:

The inclined support includes a support frame provided outside the lower end of each stand, and an inclined support arm hingedly provided on the support frame along the length direction of the bottom plate and inclined to the lower surface of the mobile chassis, so The end of the diagonal support arm is provided with a suction cup for adsorption to the support surface; the diagonal support arm can be folded toward both sides of the fixed door frame.

Further, in the material lifting device provided by the present invention, the suction cup is a height-adjustable suction cup.

Compared with the prior art, the beneficial effects of the present invention are as follows:

The material lifting device provided by the present invention controls the hydraulic cylinder through the control box of the power control system, so that the lifting operation of the hydraulic cylinder drives the lifting movement of the lifting mast relative to the fixed mast, and at the same time drives the guide chain mechanism and the hydraulic cylinder to move synchronously. The chain mechanism drives the material bracket to perform a lifting operation relative to the lifting mast, so as to lift the full or empty material bracket to a predetermined horizontal height position, so as to conveniently and quickly lift the materials loaded on the material bracket. The lifting operation not only saves time and effort, reduces the difficulty of lifting, but also improves the lifting efficiency, reliability and safety during the material lifting process. The chain guide mechanism is composed of two groups distributed on both sides of the hydraulic cylinder, which improves the stability during the lifting and lowering of the material bracket and prevents the safety risk of a group of chain guide mechanisms deflecting when lifting the material bracket.

The material lifting device provided by the present invention facilitates the transportation and movement of the entire material lifting device to a designated position by moving the chassis. It can take a construction elevator to reach various construction floors of high-rise and super-high-rise buildings. Compared with forklifts, it has a small size. , with the advantage of light load, it is suitable for material lifting operations in limited space environments.

Description of drawings

Figure 1 is a schematic three-dimensional structural diagram of the material lifting device in an unfolded state;

Figure 2 is a schematic three-dimensional structural diagram of the material lifting device in a folded state;

Figure 3 is a schematic front structural view of the material lifting device in an unfolded state;

Figure 4 is a side structural schematic diagram of the material lifting device in an unfolded state;

Figure 5 is a top structural schematic diagram of the material lifting device in an unfolded state;

Figure 6 is a schematic front structural view of the material lifting device in a folded state;

Figure 7 is a side structural schematic diagram of the material lifting device in a folded state;

Figure 8 is a top structural schematic diagram of the material lifting device in a folded state;

Shown in the picture:

100. Material lifting device;

110. Mobile base, 111. Balance arm, 112. Roller, 113. Mounting plate, 114. Universal wheel;

120. Fixed door frame, 121. Bottom plate, 122. Stand, 123. Side roof plate, 124. Reinforcement plate, 125. Sliding handrail;

130. Lifting mast, 131. Lifting frame, 132. Top frame;

140. Power control system, 141. Control box, 142. Hydraulic cylinder, 143. Protection plate, 144. Sprocket, 145. Chain;

150. Material bracket, 151. Adapter rack, 152. Bracket, 153. Jack, 154. Material claw;

160. Inclined support, 161. Support frame, 162. Inclined support arm, 163. Suction cup.

Detailed ways

The present invention will be described in detail below in conjunction with the accompanying drawings:

Please refer to Figures 1 to 8. An embodiment of the present invention provides a material lifting device 100, which includes:

Move the chassis 110 and set it horizontally.

The fixed gantry 120 is vertically installed on the movable chassis 110 .

The lifting mast 130 is slidably arranged along the length direction of the fixed mast 120 .

The material bracket 150 is slidably arranged vertically on the lifting mast 130 and parallel to the mobile chassis 110 .

The power control system 140 includes a control box 141 provided on one side of the fixed mast 120, and a hydraulic cylinder 142 connected to the control box 141. The hydraulic cylinder 142 is located between the fixed mast 120 and the lifting mast 130. inside and connected between the bottom end of the fixed mast 120 and the top end of the lifting mast 130; it also includes a chain guide mechanism for driving the lifting operation of the material bracket 150, and the chain guide mechanism is disposed at the The fixed mast 120 and the lifting mast 130 are distributed on both sides of the hydraulic cylinder 142. The chain guide mechanism on each side includes a sprocket 144 provided on the top of the lifting mast 130, which is meshed and connected at the top of the lifting mast 130. The chain 145 on the sprocket 144 has a first end connected to the material bracket 150 and a second end connected to the upper end of the fixed mast 120 . The control box 141 may be any hydraulic control box with known technology in the art, and the control box 141 may be provided with a control rod for lifting operation or other control switches. The control box 141 contains a battery, a hydraulic controller, a hydraulic station, etc., and has its own power source to avoid on-site wiring and improve construction safety.

Please refer to Figures 1 to 2. The material lifting device 100 provided by the embodiment of the present invention controls the hydraulic cylinder 142 through the control box 141 of the power control system 140, so that the lifting mast 130 is driven relative to the fixed door through the lifting operation of the hydraulic cylinder 142. The frame 120 moves up and down, and at the same time drives the chain guide mechanism and the hydraulic cylinder 142 to move synchronously. The chain guide mechanism drives the material bracket 150 to perform a lifting operation relative to the lifting mast 130, so as to lift the full or empty material bracket 150. to a predetermined horizontal height position to conveniently and quickly lift the materials loaded on the material bracket 150, which not only saves time and effort, reduces the lifting difficulty, but also improves the lifting efficiency, reliability and safety during the material lifting process. sex. The chain guide mechanisms are two groups distributed on both sides of the hydraulic cylinder 142, which improves the stability of the material bracket 150 during the lifting process and prevents the safety risk of one group of chain guide mechanisms being deflected when lifting the material bracket 150.

Please refer to Figure 1. In the material lifting device 100 provided by the embodiment of the present invention, the power control system 140 can control the lifting operation of the lifting mast 130 relative to the fixed mast 120, so that the material bracket 150 rises to the maximum lifting height. At this time The material lifting device 100 is in a maximum unfolded state, and the lifting height of the lifting mast 130 can be controlled according to needs. Please refer to Figure 2. In the material lifting device 100 provided by the embodiment of the present invention, the power control system can control the descending operation of the lifting mast 130 relative to the fixed mast 120, so that the material bracket 150 is lowered to the movable chassis 110. This When the material lifting device 100 is in a folded state.

Please refer to Figures 1 to 2. When the material lifting device 100 provided by the embodiment of the present invention is in the folded state, the moving bottom frame 110 facilitates the transportation and movement of the entire material lifting device to a designated position. The construction elevator can be used to reach high-rise and high-rise buildings. Each construction floor of a super high-rise building has the advantages of small size and light load compared to forklifts, and is suitable for material lifting operations in limited space environments.

Please refer to Figures 1 to 4 and Figures 6 to 7. In order to improve the structural stability of the fixed gantry 120, an embodiment of the present invention provides a material lifting device 100. The fixed gantry 120 includes a horizontal bottom plate 121, and a vertical bottom plate 121. Stands 122 are provided at both ends of the bottom plate 121, and side roof boards 123 are provided on the top side of the two stands 122. Each stand 122 is provided with a push-pull armrest 125, and the push-pull armrest 125 is located at One side of the control box 141. That is, the fixed gantry 120 forms a rectangular frame structure from the bottom plate 121, two uprights 122 and side top plates 123, thereby improving its structural stability. Of course, the door frame structure formed by the side roof panels may not be included. The side top plate 123 is provided to avoid the lifting operation of the lifting mast 130 . The stand 122 may be channel steel, C-shaped steel, square steel pipe, etc. The push-pull handrail 125 facilitates the movement and transportation of the material lifting device 100 by construction workers. In order to further improve the structural stability of the fixed gantry 120 , the fixed gantry 120 may further include a reinforcing plate 124 disposed between the two uprights 122 near the side top plate 123 . At this time, the second end of the chain 145 can be connected to the side top plate 123 of the fixed mast 120 or the reinforcement plate 124 . In order to effectively fix the hydraulic cylinder 142 and prevent it from deflecting during the lifting process, the fixed mast 120 may also include a protective plate 143. The protective plate 143 surrounds the hydraulic cylinder 142 and is disposed on the two poles. between the stands 122.

Please refer to Figures 1 to 8. In order to improve the stability and reliability of the material lifting device 100 during the lifting process, embodiments of the present invention provide a material lifting device 100. The movable chassis 110 may include a device disposed on the fixed door. There are balance arms 111 and mounting plates 113 on the frame 120 and distributed on both sides of the fixed gantry 120. The end of the balance arm 111 is provided with a roller 112, and a universal wheel 114 is provided below the mounting plate 113; The control box 141 is arranged on the mounting plate 113 . The mounting plate 113 and the balancing arm 111 can balance the fixed gantry 120 to make the fixed gantry 120 more stable and reliable and prevent the safety risk of deviation. The position movement of the material lifting device 100 is facilitated by the arrangement of the universal wheel 114 and the roller 112 .

Please refer to FIGS. 1 to 4 and 6 to 7 . In the material lifting device 100 provided by the embodiment of the present invention, the lifting mast 130 includes two lifting frames 131 slidably disposed on the stand 122 and connected to The top frame 132 between the top ends of the two lifting frames 131. That is, the lifting mast 130 at least includes a portal frame composed of two lifting frames and a top frame 132, and may also be a rectangular frame structure. The lifting frame 131 can be channel steel, C-shaped steel, square steel pipe, etc.

Please refer to FIGS. 1 to 8 . In the material lifting device 100 provided by the embodiment of the present invention, the material bracket 150 may include an adapter frame 151 slidably provided on the lifting mast 130 and an adapter frame 151 provided on the adapter frame. The brackets 152 on the control box 151 are horizontally distributed and located on the opposite side of the control box 141 . With this design, there is no positional interference between the bracket 152 and the control box 141, and the material can be lifted eccentrically. The lifting process is smooth, and is suitable for lifting materials such as pipelines against walls or corners. The bracket 152 may be a rectangular plate or a rectangular frame structure. For example, the bracket 152 is a frame composed of square steel pipes crossing horizontally and vertically. The adapter bracket 151 is used to enable the bracket 152 to be reliably slidably connected to the lifting mast 130 to prevent loosening. At this time, the first end of the chain 145 of the chain guide mechanism can be connected to the adapter frame 151 to reliably drive the adapter frame 151 to slide on the lifting mast 130 through the chain guide mechanism.

Please refer to Figures 1 to 2, Figure 4 and Figure 7. In order to lift materials such as tubular parts and improve the stability of the materials during the lifting process, in the material lifting device 100 provided by the embodiment of the present invention, the brackets 152 are parallel Evenly distributed jack holes 153 are provided on both sides of the lifting mast 130 , and the jack holes 153 on both sides are optionally provided with aligned and distributed material claws 154 . The material claw 154 may be Y-shaped, or may be an arc-shaped groove structure adapted to the circular pipeline. The round pipeline or pipeline module loaded on the bracket 152 of the material bracket 150 can be fixed by the material claw 154 to prevent the pipeline from moving after being loaded, thus ensuring the safety during the material lifting process. The material claws 154 are arranged at different positions of the jack 153 to be suitable for fixing pipelines of different sizes, thereby improving the safety of the material lifting process.

Please refer to Figures 1 to 5. In order to improve the structural stability of the entire machine during material lifting, the material lifting device 100 provided by the embodiment of the present invention may also include:

The inclined support 160 includes a support frame 161 provided outside the lower end of each stand 122 , and is hingedly provided on the support frame 161 along the length direction of the base plate 121 and is inclined with the lower surface of the mobile base 110 The diagonal support arm 162 is provided with a suction cup 163 at its end for adsorption to the support surface; the diagonal support arm 162 can be folded toward both sides of the fixed door frame 120 . Since the direction of the inclined support 160 is perpendicular to the balance arm 111, it can balance and support the entire material lifting device 100 in another direction, thereby improving the stability and reliability during the material lifting process. The suction cup 163 can firmly grasp the support surface such as the ground, thereby further improving the supporting and balancing effect of the inclined support 160, and has the function of preventing the entire material lifting device from tilting, that is, it has an anti-tilting effect, thereby improving the stability during the material lifting process. sex. In order to improve the gripping force of the inclined support 160, the suction cup 163 may be a height-adjustable suction cup 163. For example, the height of the suction cup 163 relative to the supporting surface can be adjusted by controlling the rotation direction of the manual rotating handle. When the diagonal support arms 162 can be folded toward both sides of the fixed gantry 120, the volume of the material lifting device 100 can be reduced, making it easier for the material lifting device 100 to enter limited and narrow spaces such as construction elevators.

Please refer to Figures 1 to 8. The material lifting device 100 provided by the embodiment of the present invention is particularly suitable for lifting horizontal pipelines and pipeline modules on construction floors, and can also be used in other buildings with large pipeline workloads and complex arrangements. It is suitable for lifting material assembly modules such as modular pipelines, and is also suitable for lifting other materials such as bridges. It can improve the installation efficiency, shorten the construction period, and also has the advantages of simple and fast operation, safety and reliability, etc. It solves the problems of traditional lifting devices such as limited lifting capacity and applicable space, and unstable support.

Please refer to Figures 1 to 8 for a material lifting device 100 provided by an embodiment of the present invention. Parameter setting examples are as follows:

When folded, the length, width and height dimensions can be 1300×1660×2200mm. When unfolded, the maximum length, width and height dimensions can be 2135×1600×3600mm. The material bracket size can be 1300×1020mm. The dead weight is 600kg. The starting lifting height can be 400mm from the ground, the maximum lifting height can be 3400mm from the ground, the designed lifting load can reach 1000kg, and the maximum lifting weight can reach 1038kg. It is suitable for the installation of horizontal pipelines or pipeline modules on all types of floors.

The present invention is not limited to the above-mentioned specific embodiments. All changes made within the claims of the present invention are within the protection scope of the claims of the present invention.

Claims

A material lifting device, characterized by including:

Mobile chassis, set horizontally;

A fixed gantry is vertically installed on the movable chassis;

The lifting mast is slidably arranged along the length direction of the fixed mast;

A material bracket is slidably arranged vertically on the lifting mast and parallel to the mobile chassis;

The power control system includes a control box provided on one side of the fixed mast, and a hydraulic cylinder connected to the control box. The hydraulic cylinder is located within the fixed mast and the lifting mast and is connected to the fixed mast. between the bottom end of the mast and the top of the lifting mast; it also includes a chain guide mechanism for driving the lifting operation of the material bracket, the chain guide mechanism is arranged within the fixed mast and the lifting mast and Distributed on both sides of the hydraulic cylinder, the chain guide mechanism on each side includes a sprocket arranged on the top of the lifting mast, engaging a chain connected to the sprocket, and the first end of the chain is connected to The second end of the chain on the material bracket is connected to the upper end of the fixed door frame.
The material lifting device according to claim 1, characterized in that the fixed door frame includes a horizontally arranged bottom plate, vertical stands arranged at both ends of the bottom plate, and two stands arranged at the top side of the two said standing stands. On the side top plate, each stand is provided with a push-pull armrest, and the push-pull armrest is located on one side of the control box.
The material lifting device according to claim 2, wherein the fixed door frame further includes a reinforcing plate disposed between the two vertical frames near the side top plate; the second end of the chain is connected to The side top plate of the fixed door frame or the reinforcement plate.
The material lifting device according to claim 2, characterized in that the fixed mast further includes a protective plate, and the protective plate surrounds the hydraulic cylinder and is arranged between the two vertical frames.
The material lifting device according to claim 2, wherein the mobile bottom frame includes a balance arm and a mounting plate arranged on the fixed gantry and distributed on both sides of the fixed gantry, and the balance arm The end of the machine is provided with rollers, and the bottom of the installation plate is provided with a universal wheel; the control box is provided on the installation plate.
The material lifting device according to claim 2, wherein the lifting mast includes two lifting frames slidably arranged on the vertical frame, and a top frame is connected between the top ends of the two lifting frames.
The material lifting device according to claim 2, characterized in that the material bracket includes an adapter frame slidably provided on the lifting mast and a bracket provided on the adapter frame. The rack is distributed horizontally and is located on the opposite side of the control box.
The material lifting device according to claim 7, wherein the bracket is provided with evenly distributed jacks parallel to both sides of the lifting mast, and the jacks on both sides are optionally provided with aligned Distributed material grippers.
The material lifting device according to claim 2, further comprising:

The inclined support includes a support frame provided outside the lower end of each stand, and an inclined support arm hingedly provided on the support frame along the length direction of the bottom plate and inclined to the lower surface of the mobile chassis, so The end of the diagonal support arm is provided with a suction cup for adsorption to the support surface; the diagonal support arm can be folded toward both sides of the fixed door frame.
The material lifting device according to claim 9, wherein the suction cup is a height-adjustable suction cup.