KR20240016586A - Heavy work bench for work lift - Google Patents

Abstract

A heavy work bench for a work lift is disclosed. The heavy workbench for the work lift is a heavy workbench installed on one side of an exterior wall during new construction of a building and near the worklift for transporting building materials. The heavy workbench includes a base frame arranged horizontally so that the edges are connected; A plurality of floor plates are horizontally arranged adjacent to each other on the upper part of the base frame and have a flat shape for placing building materials on top of the base frame; and a plurality of leg parts vertically disposed below the base frame and supported on the ground.

Description

Heavy work bench for work lift {HEAVY WORK BENCH FOR WORK LIFT}

The present invention relates to a heavy work platform for a work lift. More specifically, it is installed on a work lift to enable workers to safely transport using a cart and load building materials onto the work lift. A work lift that can be adjusted in height in response to the height of the surrounding floor, is easy to install and transport as each component can be disassembled and assembled, and is equipped with a fall prevention guide to prevent heavy objects and workers from falling from the workbench. This is about a heavy work bench for .

In general, new high-rise buildings such as buildings and apartments are being constructed in order to increase the floor area ratio of the building compared to the site area.

When constructing a high-rise building like this, a tower crane is installed and heavy building materials are moved to initially raise the height of the building. First, when the building height increases, the installed tower crane is dismantled and a work lift is installed next to the building to move the building materials to be used for construction inside the building.

The work lift installed and used next to the building does not come down to the ground due to the installation structure.

Therefore, as shown in Figure 1, a ramp structure 2 is usually installed on the work lift 1 so that the building materials 3 can be transported and loaded using a transportation means such as a cart for transporting bricks. Building materials (3) are usually in the form of bricks or tiles (5) loaded on the upper side of a pallet (4) so that they can be unloaded with a forklift.

In such cases, bricks or tiles (5), which are heavy construction materials (3), must be loaded onto a brick cart and then transported by workers on a ramp, which requires a lot of labor and often causes safety accidents. I'm doing it.

Due to this problem, at many construction sites, as shown in Figure 2, building materials (3) to be transported are loaded next to the ramp structure (2) to form a workbench (3a) using building materials, and construction equipment such as a forklift is placed on it. After placing the building materials (3) using the , they are loaded on the work lift (1) using a cart for transporting bricks.

In this case, as shown in FIG. 3, some of the bricks or tiles (5a) located on the upper part of the building material product (3) are removed to match the height of the ramp structure (2) to form a workbench (3a) using the building material product. I am using it.

In this way, some of the separated bricks or tiles (5a) are frequently damaged due to carelessness while stored separately, while in the case of the workbench (3a) using building materials as shown in Figure 4, the corners There is a problem in which the nearby upper bricks or tiles (5) are damaged by various factors such as falling or the movement of a cart loaded with building materials (3) or heavy goods placed on top. there is.

In addition, the construction site becomes busy due to upper bricks or tiles (5) that fall near the edge of the workbench (3a) using construction materials, and the fallen upper bricks or tiles (5) block the movement path or cause inconvenience. It may cause damage or may be a factor in causing a safety accident.

Republic of Korea Open Patent 10-2019-0051589

The purpose of the present invention is to solve this problem, and is installed on a work lift to allow workers to safely transport using a cart and load building materials onto the work lift, and to be installed at the height of the floor around the work lift. The height can be adjusted accordingly, each component can be disassembled and assembled, making it easy to install and transport. A heavy workbench for a work lift is equipped with a fall prevention guide to prevent heavy objects and workers from falling from the workbench. It is to provide.

A heavy workbench for a work lift according to an embodiment of the technical idea of the present invention for achieving the above problem is a heavy workbench installed on one side of the exterior wall during new construction of a building and installed near a work lift for transporting building materials. A base frame arranged horizontally so that the edges are connected; A plurality of floor plates are horizontally arranged adjacent to each other on the upper part of the base frame and have a flat shape for placing building materials on top of the base frame; and a plurality of leg parts vertically disposed below the base frame and supported on the ground.

In addition, the base frame includes lower frames arranged horizontally and spaced apart at the front and rear sides; It may include a cylindrical tube-shaped upper frame disposed on the lower frame, the corners of which are connected in a 'ㅁ' shape.

In addition, the floor plate is a flat plate with a protruding pattern formed on the top to prevent slipping; and a hook provided in the form of a ring with one side open at both ends of the plate so that it can be hung and installed on the upper frame.

In addition, the leg portion further includes a height adjusting portion for adjusting the height in response to the height of the ground, and the height adjusting portion includes: a flat support plate supported on the ground; a threaded portion installed vertically in the upper center of the support plate and having threads formed on the outer peripheral surface; and an adjustment handle that is screwed to the threaded part and moves up and down, and supports the lower end of the leg part.

Additionally, paint of a different color may be applied to the threads of the threaded portion at set intervals so that the user can visually determine the position of the control handle.

In addition, the height adjustment unit may further include height adjustment means for fixing the position of the adjustment handle when the support plate is in contact with the ground.

In addition, the height adjustment means includes hinges installed on both sides of the lower part of the adjustment handle; It may include a fastening rotation member that is rotatably installed on the hinge and whose end has teeth formed to engage the screw threads of the screw thread portion.

In addition, the fastening and rotating member further includes an extension portion whose lower end is formed to extend, and the height fixing means is configured to fix the fastening and rotating member in a state engaged with the screw thread of the screw thread portion without rotating the fastening rotating member. It may further include a fixing screw member screwed to the screw thread of the screw portion at the position.

In addition, the fixing screw member includes a nut portion having a thread formed on an inner circumferential surface to be screwed to the thread of the thread portion; and a receiving hole in which a hole is formed larger than the diameter of the hole in which the thread of the nut part is formed so as to provide a space in the upper part of the nut part for receiving and inserting the extension part.

Additionally, the receiving hole may be formed to have a gradually smaller hole diameter from the top to the bottom.

In addition, reinforcing means may be further installed on the lower part of the lower frame and on one side of the leg portion to increase the force that can withstand the load of building materials.

In addition, the reinforcement means may include a clamp installed on one side of the lower frame and the other side of the lower frame, the leg portion on one side, and the leg portion on the other side; and a plurality of first reinforcing bars, one of which is fixedly installed at two of the clamps.

Additionally, a connecting reinforcing bar may be further provided to connect both ends of the plurality of first reinforcing bars.

In addition, the connecting reinforcing bar includes a ring formed in a closed loop shape so that both ends correspond to the shape of the outer peripheral surface of the first reinforcing bar to be inserted into the two first reinforcing bars; And it may include; a rod-shaped connecting member connecting the rings to each other.

Additionally, a second reinforcing bar may be installed horizontally by welding on one side of the leg portion on the front and rear sides, respectively.

In addition, fall prevention guides may be further provided at four corners of the lower frame to prevent heavy objects and workers loaded on the floor plate from falling outside the floor plate.

In addition, the fall prevention guide includes a tubular safety bar holder installed vertically at four corners of the lower frame; A safety bar in the form of a plurality of tubes or rods inserted into the safety bar holder and installed vertically; and a safety line member installed horizontally across the plurality of safety bars.

In addition, the safety bar may further include line hooks installed at regular intervals to allow the safety line members to be installed at regular intervals.

The heavy work bench for the work lift according to the present invention is installed on the work lift to allow workers to safely transport using a cart and load building materials onto the work lift, and is installed in accordance with the height of the floor around the work lift. The height of the parts supported on the floor can be adjusted individually, making it easy to level, and each component can be disassembled and assembled for easy installation and transportation, and a fall prevention guide is provided to keep heavy objects and workers off the workbench. It has the effect of preventing falls.

1 to 4 are illustrations of conventional ramp structures for transporting building materials installed on a work lift.
Figure 5 is a perspective view of a heavy workbench for a work lift according to an embodiment of the present invention.
Figure 6 is a cross-sectional view of the height adjustment part of a heavy workbench for a work lift according to an embodiment of the present invention.
Figure 7 is a cross-sectional view of a height adjustment unit provided with a height adjustment means according to an embodiment of the present invention.
Figures 8 and 9 are cross-sectional views of a height adjustment unit provided with a height adjustment means according to another embodiment of the present invention.
Figure 10 is a perspective view of a heavy workbench for a work lift according to another embodiment of the present invention equipped with reinforcement means.
Figure 11 is a perspective view of a heavy workbench for a work lift according to another embodiment of the present invention with a connecting reinforcement bar installed.
Figure 12 is a perspective view of a heavy workbench for a work lift according to another embodiment of the present invention with a fall prevention guide installed.

In order to fully understand the present invention, its operational advantages, and the objectives achieved by practicing the present invention, reference should be made to the accompanying drawings and the contents described in the drawings illustrating preferred embodiments of the present invention.

Hereinafter, the present invention will be described in detail by explaining preferred embodiments of the present invention with reference to the accompanying drawings. The same reference numerals in each drawing indicate the same member.

A heavy workbench for a work lift according to an embodiment of the present invention is installed on the work lift to allow workers to safely transport using a cart and load building materials onto the work lift, and is installed on the floor around the work lift. The height can be adjusted according to the height, each component can be disassembled and assembled, making it easy to install and transport, and it is equipped with a fall prevention guide to prevent heavy objects and workers from falling from the workbench. It's about the workbench.

That is, a heavy work bench for a work lift according to an embodiment of the present invention is installed on one side of the exterior wall during new construction of a building and transports heavy building materials such as bricks, tiles, etc. near the work lift. This is to reduce labor force and ensure safety by allowing workers to more easily transport the load to the work lift when loading using .

Figure 5 is a perspective view of a heavy workbench for a work lift according to an embodiment of the present invention.

Referring to FIG. 5, a heavy work platform for a work lift according to an embodiment of the present invention may largely include a base frame 10, a floor plate 20, and leg portions 30.

First, the base frame 10 is a part that becomes the basic frame and is arranged horizontally so that the corners are connected.

The base frame 10 is disposed on a lower frame 11 horizontally spaced apart from each other on the front and rear sides of a space where building materials (e.g., bricks, etc.) are loaded, and on an upper part of the lower frame 11, It may include a cylindrical tube-shaped upper frame 12 installed with the corners connected in a 'ㅁ' shape.

That is, the lower frame 11 is arranged horizontally at both ends of the space where building materials are loaded, and the upper frame 12 is formed on the upper part of the lower frame 11 through a method such as welding. It can be installed horizontally to form a border in the shape of a ruler.

Accordingly, the base frame 10 is a frame that is arranged horizontally, and the center of the base frame 10 may be formed as an empty space.

Next, a plurality of floor plates 20 are horizontally arranged adjacent to each other on the upper part of the base frame 10 and are configured in the form of a flat plate for placing building materials.

The floor plate 20 is a flat plate 21 with a protruding pattern portion 21a formed thereon to prevent slipping, and both ends of the plate 21 can be hung on the upper frame 12. It may include a hook 22 provided in the form of a ring with one side open.

That is, the plate 20 is hung on the upper frame 12 through the hook 22 and may have a structure that is detachable from the base frame 10.

In addition, a protruding pattern portion 21a with a certain pattern is formed on the upper part of the plate 20 to prevent the worker from slipping when walking, and the bottom plate 20 is an empty space at the center of the base frame 10. It is manufactured by dividing the area into a plurality of equal parts, so that the weight of each floor plate 20 can be reduced to make it easy to transport.

Lastly, a plurality of leg parts 30 are arranged vertically in the lower part of the base frame 10 and are supported on the ground.

That is, the leg portion 30 is installed at at least four corners to support the base frame 10 and the floor plate 20 and is supported on the floor of the work site, and is in the form of a vertical cylindrical rod or tube. This can be done, and in various embodiments, the leg portion 30 installed on the front side and the leg portion 30 installed on the rear side may have different lengths.

Meanwhile, the leg portion 30 may further include a height adjustment portion 30a for adjusting the height in response to the height from the ground, that is, the height of the ground.

The height adjustment unit 30a will be described in detail later with reference to the drawings.

As described above, the basic configuration of a heavy workbench for a work lift according to an embodiment of the present invention can be achieved through the base frame 10, the floor plate 20, and the leg portion 30, Even if heavy construction materials are loaded, it can withstand the load.

Figure 6 is a cross-sectional view of the height adjustment part of a heavy workbench for a work lift according to an embodiment of the present invention, and Figure 7 is a cross-sectional view of the height adjustment part provided with height adjustment means according to an embodiment of the present invention, Figures 8 to 8 Figure 9 is a cross-sectional view of a height adjustment unit provided with height adjustment means according to another embodiment of the present invention.

Referring to FIG. 6, the height adjustment part 30a is a part installed on the leg part 30, and is installed vertically in the upper center of the flat support plate 31 supported on the ground and the support plate 31. It may include a threaded portion 32 having a thread formed on the outer peripheral surface, and an adjustment handle 33 that is screwed to the threaded portion 32 and moves up and down, and supports the lower end of the leg portion 30.

The support plate 31 has a flat plate shape and may be made of a metal material, and is a part that is supported in direct contact with the floor of the work site.

The threaded portion 32 is a cylindrical tube with a thread formed on the outer peripheral surface, and the length of the threaded portion 32 may correspond to the adjustable height of the leg portion 30.

The control handle 33 is a part that is screwed to the thread part 32 and moves up and down by the operator's manipulation, and the lower part of the leg part 30 is supported on the upper side of the control handle 33. The fixed position of the adjustment handle 33 may be the set height of the leg portion 30.

That is, if you want to adjust the height through the height adjustment part (30a) to match the height between the leg part 30 and the ground, lower the height by rotating the adjustment handle 33 to lower the height of the leg part 30. ) As the adjustment handle 33, which supports the As the rises, the total length of the leg portion 30 extends and becomes relatively longer.

Meanwhile, although not shown in the drawing, paint of a different color may be applied to the threads of the threaded portion 32 at set intervals so that the user can visually determine the position of the adjustment handle 33.

In other words, the user can easily visually determine where the adjustment handle 33 is located on the thread of the thread portion 32, so that the set height of the height adjustment portion 30a installed on the leg portion 30 at various locations can be adjusted. When leveling the bottom plate 20 by matching it, leveling work can be performed more easily.

Referring to FIG. 7, in another embodiment, the height adjustment unit 30a includes height adjustment means 100 for fixing the position of the adjustment handle 33 in a state where the support plate 31 is in contact with the ground. It may further include.

In other words, the adjustment handle 33 needs to remain stably fixed without moving from the set position, and for this purpose, the height adjustment means 100 can be installed.

The height adjusting means 100 includes a hinge 110 installed on both sides of the lower part of the adjustment handle 33, and is rotatably installed on the hinge 110, and the end has teeth so as to engage with the thread of the thread portion 32. It may include a formed fastening rotation member 120.

That is, the fastening and rotating member 120 is pivotably coupled to the hinge 110 and is rotatable. When the position to fix the adjustment handle 33 is determined, the teeth formed on the end of the fastening and rotating member 120 are It is in a fastened state by descending downward and rotating to engage the thread of the threaded portion 32, and in this state, the adjustment handle 33 cannot descend any longer and can remain fixed.

In addition, when it is desired to move the position by rotating the adjustment handle 33 again, the adjustment handle 33 is rotated by rotating the fastening rotation member 120 to release the state of being engaged with the thread of the thread portion 32. It is possible to set the position to a state where movement is possible.

Referring to FIG. 8, in another embodiment, the fastening rotation member 120 further includes an extension portion 130 whose lower end is formed to extend, and in this case, the height fixing means 100 is used for the fastening rotation. In order to ensure that the member 120 is not rotated and is fixed in a state engaged with the screw thread of the threaded portion, it further includes a fixing screw member 140 screwed to the threaded portion of the threaded portion 32 at the position of the extension portion 130. can do.

The fixing screw member 140 includes a nut portion 141 having a thread formed on the inner circumferential surface to be screwed to the thread of the thread portion 32, and the extension portion 130 is accommodated and fitted on the upper part of the nut portion 141. It may include a receiving hole 142 having a hole larger than the diameter of the hole where the thread of the nut portion 141 is formed so that there is a space for the nut portion 141 to be formed.

That is, in order to ensure that the fastening and rotating member 120 is no longer rotated in a state where the fastening and rotating member 120 is rotated and stopped, but is fixed in a state engaged with the screw thread of the screw thread portion, the fastening and rotating member 120 is stopped. In this state, it is possible to fasten the fixing screw member 140 by screwing it to the position of the extension part 130.

In this way, when the fixing screw member 140 moves to the position of the extension portion 130 at the bottom of the fastening pivoting member 120 and is fastened, the fastening pivoting member 120 is in a state in which it cannot be opened outward. The control handle 33 can be fixed in a screwed state to the threaded portion 32.

Referring to FIG. 9, in another embodiment, the receiving hole 142' may be formed to have a gradually smaller hole diameter from the top to the bottom.

That is, the receiving hole 142' in another embodiment has a structure in which the diameter of the hole gradually becomes smaller, so that the inside of the receiving hole 142' can be formed with a sloping inclined surface, which is connected to the fixing screw up to the position of the extension part 130. This is so that during the process of screwing the member 140, the end of the extension part 130 is smoothly guided to the position of the receiving hole 142' and fastened in a tightened state.

Figure 10 is a perspective view of a heavy workbench for a work lift according to another embodiment of the present invention equipped with reinforcement means, and Figure 11 is a perspective view of a heavy workbench for a work lift according to another embodiment of the present invention with a connecting reinforcement bar installed.

Referring to FIG. 10, reinforcing means 200 may be further installed on one side of the lower frame 11 and the leg portion 30 to increase the force that can withstand the load of building materials.

The reinforcement means 200 includes the lower frame 11 on one side and the lower frame 11 on the other side, the leg portion 30 on one side, and the clamp 210 installed on one side of the leg portion 30 on the other side. ) and a plurality of first reinforcement bars 220, one of which is fixedly installed at two locations of the clamps 210.

That is, the clamp 210 is used to fix the first reinforcement bar 220 by allowing one side of the clamp 210 to be open or closed.

Therefore, the first reinforcing bar 220 can be fixedly installed on one side of the front lower frame 11 and one side of the front leg portion 30 by the clamp 210, and the first reinforcing bar 220 Can be fixedly installed on one side of the rear lower frame 11 and one side of the rear leg portion 30 by the clamp 210.

That is, the first reinforcement bar 220 can be installed horizontally and connected from the front side to the back side.

Meanwhile, a second reinforcing bar 240 may be installed by welding and fixed horizontally to one side of the leg portion 30 on the front and rear sides of the leg portion 30, respectively.

That is, the second reinforcing bar 240 is a part for increasing the strength of the support along with the first reinforcing bar 220, and is arranged horizontally in a direction perpendicular to the first reinforcing bar 220, thereby supporting the first reinforcing bar 220. It is possible to increase the support strength of the part where (220) is not installed.

Referring to FIG. 11, in another embodiment, a connecting reinforcing bar 230 may be further provided to connect both ends of the plurality of first reinforcing bars 220.

The connecting reinforcing bar 230 includes a ring 231 and the ring ( It may include a rod-shaped connecting member 232 that connects 231) and the ring 231.

In this way, the overall torsional strength and support strength can be increased by installing and connecting the connecting reinforcing bar 230 at two locations of the first reinforcing bar 220.

Figure 12 is a perspective view of a heavy workbench for a work lift according to another embodiment of the present invention with a fall prevention guide installed.

Referring to FIG. 12, at four corners of the lower frame 11, there are fall prevention guides to prevent heavy objects and workers loaded on the floor plate 20 from falling outside the floor plate 20. 300) may be further provided.

The fall prevention guide 300 includes a tube-shaped safety bar holder 310 installed vertically at four corners of the lower frame 11, a plurality of tubes inserted into the safety bar holder 310 and installed vertically, or It may include a rod-shaped safety bar 320 and a plurality of safety line members 330 installed horizontally across the safety bars 320.

The safety bar holder 310 is fixedly installed at at least four corners of the lower frame 11, and the safety bar 320 is detachably installed on the safety bar holder 310, and is transported before initial assembly. In this case, the safety bar 320 can be easily transported by separating it from the safety bar holder 310, and assembly can be completed by easily installing the safety bar 320 at the installation site.

Meanwhile, the safety line member 330 is, for example, a chain, wire, rope, etc., and is not limited to any one. It is installed horizontally at regular intervals on the safety bar 320, so that the load or the worker can It is possible to prevent falling away from the floor plate 20.

At this time, line hangers 321 may be further installed on the safety bar 320 to ensure that the safety line members 330 are installed at regular intervals and at regular intervals.

The line hanger 321 is in the form of a ring with one side open and is attached to the outer surface of the safety bar 320 in various directions, so that the safety line member 330 can be easily installed on the safety bar 320, Once again, it can be easily removed.

The heavy work bench for the work lift according to various embodiments of the technical idea of the present invention is installed on the work lift to enable workers to safely transport using a cart and load building materials on the work lift. , the parts supported on the floor can be individually adjusted in height in response to the height of the floor around the work lift, making it easy to level, and each component can be disassembled and assembled, making it easy to install and transport, and preventing falls. The guide is provided to prevent heavy objects and workers from falling from the workbench.

The carrier cleaning device allows for a high throughput rate per unit time when cleaning multiple carriers by allowing the main body, which requires more time to be cleaned, to be accommodated than the cover, and responds to the complex shape of the carriers by adjusting the surface and The structure of the cleaning liquid spray nozzle has been improved so that the cleaning liquid can be sprayed throughout the internal space, and the main body of the carrier can be arranged in an inclined form according to the cleaning liquid spray angle rather than in a fixed form, which increases the cleaning effect. There is.

As described above, the optimal embodiment has been disclosed in the drawings and specification. Although specific terms are used here, they are used only for the purpose of describing the present invention and are not used to limit the meaning or limit the scope of the present invention described in the claims. Therefore, those skilled in the art will understand that various modifications and other equivalent embodiments are possible therefrom. Therefore, the true technical protection scope of the present invention should be determined by the technical spirit of the attached patent claims.

10: base frame 11: lower frame
12: upper frame 20: floor plate
21: plate 21a: protruding pattern portion
22: Hook portion 30: Leg portion
30a: Height adjustment part 31: Support plate
32: threaded portion 33: adjustment handle
100: Height adjustment tool 110: Hinge
120: Fastening rotation member 130: Extension part
140: Fixing screw member 141: Nut part
142, 142': receiving hole 200: reinforcement means
210: Clamp 220: First reinforcement bar
230: Connection reinforcement bar 231: Ring
232: Connecting member 240: Second reinforcing bar
300: Fall prevention guide 310: Safety bar holder
320: safety bar 321: line hanger
330: Safety line member

Claims (18)

In the heavy workbench installed on one side of the exterior wall during new building construction and near the work lift for transporting building materials,
A base frame arranged horizontally so that the edges are connected;
A plurality of floor plates are horizontally arranged adjacent to each other on the upper part of the base frame and have a flat shape for placing building materials on top of the base frame; and
A heavy workbench for a work lift, comprising: a plurality of leg portions arranged vertically below the base frame and supported on the ground. According to clause 1,
The base frame is,
A lower frame arranged horizontally and spaced apart at the front and rear sides; and
A heavy workbench for a work lift, comprising: a cylindrical tube-shaped upper frame disposed on the lower frame, the corners of which are connected in a 'ㅁ' shape. According to clause 2,
The floor plate is,
A flat plate with a protruding pattern formed on the top to prevent slipping; and
A heavy workbench for a work lift, comprising: a hook provided in the form of a ring with one side open at both ends of the plate so that it can be hung on an upper part of the upper frame. According to clause 3,
The legs,
It further includes a height adjustment unit for adjusting the height in response to the height of the ground,
The height adjustment part,
A flat support plate supported on the ground;
a threaded portion installed vertically in the upper center of the support plate and having threads formed on the outer peripheral surface; and
A heavy workbench for a work lift, comprising: an adjustment handle that is screwed to the threaded part and moves up and down, and supports the lower end of the leg part. According to clause 4,
In the thread of the threaded portion,
A heavy workbench for a work lift, characterized in that paint of different colors is applied at set intervals so that the user can visually estimate the position of the control handle. According to clause 4,
The height adjustment part,
A heavy workbench for a work lift, further comprising height adjustment means for fixing the position of the control handle while the support plate is in contact with the ground. According to clause 6,
The height and correction means are,
Hinge installed on both sides of the lower part of the control handle;
A heavy workbench for a work lift, comprising: a fastening rotation member rotatably installed on the hinge and an end having teeth formed to engage with the threads of the threaded portion. According to clause 7,
The fastening rotation member further includes an extension portion whose lower end is formed to extend,
The height and correction means are,
A heavy object for a work lift, characterized in that it further includes a fixing screw member screwed to the screw thread of the thread portion at the position of the extension portion so that the fastening rotation member is fixed in a state engaged with the screw thread of the thread portion without being rotated. bench. According to clause 8,
The fixing screw member is,
A nut portion having threads formed on its inner circumferential surface to be screwed to the threads of the threaded portion; and
A heavy workbench for a work lift, comprising: a receiving hole in which a hole is formed larger than the diameter of the hole in which the thread of the nut part is formed so as to provide a space for receiving and inserting the extension part in the upper part of the nut part. According to clause 9,
The receiving hole is,
A heavy workbench for a work lift, characterized in that the diameter of the hole gradually becomes smaller from the top to the bottom. According to clause 4,
On one side of the lower frame and the leg portion,
A heavy work bench for a work lift, characterized in that reinforcement means are further installed to increase the strength to withstand the load of building materials. According to clause 11,
The reinforcement means are,
Clamps installed on one side of the lower frame and the other side of the lower frame, the leg portion on one side, and one side of the leg portion on the other side; and
A heavy load workbench for a work lift, comprising: a plurality of first reinforcing bars, one of which is fixedly installed at two of the clamps. According to clause 12,
A heavy workbench for a work lift, characterized in that a connecting reinforcing bar is further provided to connect both ends of the plurality of first reinforcing bars. According to clause 13,
The connection reinforcement bar is,
A ring formed in a closed loop shape so that both ends correspond to the shape of the outer peripheral surface of the first reinforcement bar to be inserted into the two first reinforcement bars; and
A heavy workbench for a work lift, comprising: a rod-shaped connecting member connecting the rings to each other. According to clause 12,
In the leg portion,
A heavy workbench for a work lift, characterized in that a second reinforcing bar is welded and fixed horizontally to one side of the leg portion on the front and rear sides, respectively. According to clause 4,
At the four corners of the lower frame,
A heavy workbench for a work lift, further comprising a fall prevention guide to prevent heavy objects and workers loaded on the floor plate from falling outside the floor plate. According to clause 16,
The fall prevention guide is,
A tubular safety bar holder installed vertically at four corners of the lower frame;
A safety bar in the form of a plurality of tubes or rods inserted into the safety bar holder and installed vertically; and
A heavy load workbench for a work lift, comprising: a plurality of safety line members installed horizontally across the safety bars. According to clause 17,
In the safety bar,
A heavy workbench for a work lift, characterized in that line hangers are installed at regular intervals to allow the safety line members to be installed at regular intervals.