Portable scaffold

Abstract

A portable scaffold comprises a left side frame body, a right side frame body, a first rotating shaft, a second rotating shaft, a third rotating shaft, a pedal and a connecting piece. The left frame body and the right frame body are respectively formed by assembling vertical rods, transverse rods and inclined rods, the transverse rods are horizontally and fixedly connected between the two vertical rods of each frame body, upper connecting pipes and lower connecting pipes of the vertical rods on the opposite sides of the left frame body and the right frame body are respectively and fixedly connected with the inclined rods, and the other ends of the inclined rods are connected to the corresponding first rotating shafts or the corresponding third rotating shafts. The inclined rods, the first rotating shafts and the third rotating shafts can rotate around the corresponding vertical rods along with the connecting pipes; a clamping ring for clamping the third rotating shaft is arranged on the first rotating shaft; one end of the pedal is rotationally connected to one side, far away from the inclined rod, of the cross rod at the top of the frame body on one side through a second rotating shaft, and the other end is lapped to the cross rod at the top of the frame body on the other side through a hook on the pedal. According to the scaffold, the structural design is optimized, light materials are adopted, and the modular combination mode is adopted, so that the portability, the safety and the stability of the scaffold are achieved, the construction efficiency is improved, and the construction cost is reduced.

Description

Technical field:

[0001] The utility model belongs to the technical field of building construction and relates to a simple scaffold, in particular to a simple scaffold used for subway construction. Background technology:

[0002] In the field of construction, repair and maintenance, scaffolding is an indispensable auxiliary equipment. Traditional scaffolding is bulky, cumbersome to set up, and difficult to disassemble, which affects construction efficiency. At the same time, due to its large size, transportation and storage are also extremely inconvenient. In recent years, with the advancement of science and technology and the construction industry's increasing demand for efficiency, safety and portability, the development of new portable scaffolding has become an urgent need in the industry. Summary of the invention:

[0003] The utility model provides a novel portable scaffold, which realizes the portability, safety and stability of the scaffold by optimizing the structural design combination.

[0004] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions:

[0005] The utility model provides a portable scaffold, which is a rectangular frame structure, comprising a frame body, a rotating shaft, a pedal and a connecting piece; the rotating shaft comprises a first rotating shaft, a second rotating shaft and a third rotating shaft; the frame body is divided into a left frame body and a right frame body, which are respectively assembled by vertical poles, cross bars and oblique poles, and the left frame body and the right frame body are respectively provided with two vertical poles, the vertical poles are perpendicular to the ground, the cross bars are horizontally installed between the two vertical poles, the cross bars are fixedly connected to the vertical poles by connecting pieces or welding, and the upper and lower parts of the vertical poles are sleeved with connecting pipes, which can rotate around the vertical poles; the left frame body and the right frame body are arranged oppositely, and the upper and lower connecting pipes of the vertical poles on the opposite side of the left frame body and the right frame body are respectively fixedly connected to an oblique pole, and the oblique poles connected by the upper connecting pipes of the vertical poles The rod is tilted downward, and the oblique rod connected to the lower connecting pipe is tilted upward, and the other end of the two oblique rods connected to the same vertical rod of one side frame are connected to the upper and lower ends of the first rotating shaft, and the other end of the two oblique rods connected to the same vertical rod of the other side frame are connected to the upper and lower ends of the third rotating shaft, the first rotating shaft and the third rotating shaft are arranged vertically, and the oblique rod, the first rotating shaft and the third rotating shaft can rotate around the corresponding vertical rod along with the connecting pipe; a clamping ring is provided at the upper and lower ends of the first rotating shaft, and when the oblique rods on the left frame and the right frame are opened and approached, the third rotating shaft can be clamped in the clamping ring; the second rotating shaft is rotatably connected to the cross bar at the top of one side frame, away from the side of the oblique rod, one end of the pedal is fixedly connected to the second rotating shaft, and the other end is fixedly connected to the hook, and the hook is hooked to the cross bar at the top of the other side frame.

[0006] The vertical pole is made of a light metal material aluminum alloy or high-strength plastic with a diameter of 40 mm.

[0007] The left and right frames are each provided with four horizontal bars in parallel, with a distance of 300mm between each two bars. The horizontal bars are made of lightweight metal material, aluminum alloy or high-strength plastic. The diameter of the top bar is 40mm, and the diameter of the other three bars is 30mm.

[0008] The connecting pipe is a steel pipe with a length of 120mm and a diameter of 50mm, which is set on the vertical poles of the left frame and the right frame. Each vertical pole is provided with two, which are located 250mm away from the upper and lower ends of the vertical pole.

[0009] The diagonal rod is made of a lightweight metal material aluminum alloy with a diameter of 25mm. One end of the diagonal rod is connected to the corresponding connecting pipe of the corresponding vertical rod through a connector or welding, and the other end is connected to the first rotating shaft or the third rotating shaft of the corresponding diagonal rod.

[0010] A clamping ring with a diameter of 45 mm and a width of 10 mm is welded to the upper and lower ends of the first rotating shaft.

[0011] The pedal has a width of 400 mm and a thickness of 50 mm and is made of a high-strength lightweight metal material.

[0012] The second rotating shaft is made of a light metal material with a diameter of 50 mm.

[0013] A pulley is installed at the bottom of the vertical pole; and a connecting piece can be installed at the top of the vertical pole to set up the second layer of the frame.

[0014] The connecting piece is provided with a safety lock.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The utility model is mainly composed of vertical poles, horizontal poles, diagonal poles, pedals and connecting parts, which simplifies the structure, reduces the number of parts and improves the construction efficiency.

[0017] 2. This utility model adopts an integrated design, and all components are standardized. They can be quickly assembled and disassembled, are easy to transport and store, and meet different construction needs.

[0018] 3. The utility model uses lightweight materials. The vertical poles, horizontal poles and other components are made of lightweight materials such as aluminum alloy or high-strength plastic to reduce the overall weight and achieve the convenience of the scaffolding.

[0019] 4. To ensure the safety and stability of the scaffolding, the vertical poles of the utility model, as the main supporting parts of the scaffolding, are made of high-strength lightweight materials and have good compressive resistance; the cross bars and diagonal bars are connected to the vertical poles through connectors to form a stable supporting structure; the overall stability of the scaffolding is increased by rationally arranging the diagonal bars; the pedals provide a safe and reliable working space.

[0020] 5. The utility model adopts high-strength and corrosion-resistant materials to ensure that the scaffolding is not easily deformed or damaged during use.

[0021] 6. The connector of the present invention is designed with a safety lock to ensure that the components will not loosen during assembly.

[0022] 7. This utility model has undergone strict load-bearing tests to ensure that it can withstand various loads during the construction process.

[0023] In summary, the present invention achieves portability, safety, and stability of the scaffolding by optimizing the structural design, using lightweight materials, and modular assembly. The application of the present invention will greatly improve construction efficiency and reduce construction costs. Description of the drawings:

[0024] Figure 1 This is the main view of the utility model;

[0025] Figure 2 This is a side view of the utility model (pedal lowered, diagonal rod folded);

[0026] Figure 3 It is a top view of the utility model.

[0027] Reference numerals in the figures:

[0028] 1-vertical pole, 2-hook, 3-cross bar, 4-connecting tube, 5-diagonal rod, 6-first rotating shaft, 7-second rotating shaft, 8-pedal, 9-clamp, 10-third rotating shaft. Specific implementation method:

[0029] The present invention is further described below in conjunction with specific implementation methods. The specific implementation methods are further descriptions of the principles of the present invention and do not limit the present invention in any way. Technologies that are the same or similar to the present invention do not exceed the scope of protection of the present invention.

[0030] See also Figure 1-Figure 3The present invention provides a portable scaffolding having a rectangular parallelepiped frame structure, comprising a frame body, a rotating shaft, pedals 8, and connectors. The rotating shaft comprises a first rotating shaft 6, a second rotating shaft 7, and a third rotating shaft 10. The frame body is divided into a left frame body and a right frame body. The left frame body and the right frame body are respectively assembled from vertical poles 1, horizontal poles 3, and diagonal poles 5. The left frame body and the right frame body each have two vertical poles 1, which are perpendicular to the ground and located at each of the four corners of the scaffolding, serving as vertical supports for the scaffolding. The vertical poles 1 are made of a lightweight metal material, aluminum alloy, or high-strength plastic, with a diameter of 40 mm. The crossbar 3 is installed horizontally between the two vertical poles 1. The crossbar 3 is fixedly connected to the vertical poles 1 by connectors or welding. The left and right frames are each provided with four crossbars 3 arranged parallel to each other, with a spacing of 300mm between each two. While serving as the lateral support of the scaffolding, it also provides a more convenient way for workers to mount the scaffold. The crossbar 3 is made of lightweight metal material, aluminum alloy, or high-strength plastic. The top one has a diameter of 40mm, and the remaining three have a diameter of 30mm. Connecting pipes 4 are sleeved on the upper and lower parts of the vertical poles 1. The connecting pipes 4 can rotate around the vertical poles 1. The connecting pipes 4 are made of steel pipes with a length of 120mm and a diameter of 50mm. They are sleeved on the vertical poles 1 of the left and right frames. Each vertical pole 1 is provided with two crossbars, located 250mm away from the upper and lower ends of the vertical poles 1. The left side frame and the right side frame are arranged opposite to each other, and the upper and lower connecting tubes 4 of the opposite side uprights 1 of the left side frame and the right side frame are respectively fixedly connected to an oblique rod 5, and the oblique rod 5 is made of a lightweight metal material aluminum alloy with a diameter of 25 mm. One end of the oblique rod 5 is connected to the corresponding connecting tube 4 of the corresponding upright 1, and the other end is connected to the first rotating shaft 6 or the third rotating shaft 10 of the corresponding oblique rod 5 through a connecting piece or welding. In this embodiment, the oblique rod 5 connected to the upper connecting tube 4 of the upright 1 is inclined downward, and the oblique rod 5 connected to the lower connecting tube 4 is inclined upward. The other ends of the two oblique rods 5 connected to the same upright 1 of one side frame are connected to the upper and lower ends of the first rotating shaft 6, and the other ends of the two oblique rods 5 connected to the same upright 1 of the other side frame are connected to the upper and lower ends of the third rotating shaft 10. The first rotating shaft 6 and the third rotating shaft 10 are arranged vertically, and the oblique rod 5, the first rotating shaft 6, and the third rotating shaft 10 can rotate around the corresponding upright 1 with the connecting tube 4. A clamping ring 9 with a diameter of 45mm and a width of 10mm is welded to the upper and lower ends of the first rotating shaft 6. When the diagonal bars 5 on the left and right frames are opened and brought together, the third rotating shaft 10 can be clamped in the clamping ring 9 to prevent the two rotating shafts from shaking or falling off. The second rotating shaft 7 is made of a lightweight metal material with a diameter of 50mm. The second rotating shaft 7 is rotatably connected to the cross bar 3 at the top of one side frame away from the diagonal bar 5. One end of the pedal 8 is fixedly connected to the second rotating shaft 7 by welding, and the other end is fixedly connected to the hook 2 by welding. The hook 2 is connected to the cross bar 3 at the top of the other side frame. The pedal 8 is 400mm wide and 50mm thick. It is made of high-strength lightweight metal material and can withstand large loads. A pulley is installed at the bottom of the scaffolding upright 1 to facilitate the movement of the scaffolding.A connector can be installed on the top of the vertical pole 1 to set up the second layer of the frame. The connector of the scaffold has a safety lock.

[0031] To use this scaffold, first, erect the four uprights 1 perpendicular to the ground. Then, by rotating the first and third shafts 6 and 10, pull the left and right frames apart until their diagonal bars 5 are in the same vertical plane. The ends of the third shaft 10 snap onto the clasps 9 at the upper and lower ends of the first shaft 6. Then, rotate the pedals 8 via the second shaft 7 to attach the hooks 2 to the crossbars 3 of the other frame. When the scaffold is not in use, first rotate the pedals 8 and retract them. Then, rotate the first and third shafts 6 and 10 to fold the left and right frames inward.

Claims

1. A portable scaffold, characterized by: The scaffold is a rectangular parallelepiped frame structure, which includes a frame body, a rotating shaft, a pedal (8) and a connecting piece; the rotating shaft includes a first rotating shaft (6), a second rotating shaft (7) and a third rotating shaft (10); the frame body is divided into a left frame body and a right frame body, which are respectively assembled by vertical poles (1), horizontal poles (3) and inclined poles (5); the left frame body and the right frame body are each provided with two vertical poles (1), the vertical poles (1) are perpendicular to the ground, and the horizontal poles (3) are horizontally installed between the two vertical poles (1). The horizontal rod (3) and the vertical rod (1) are fixedly connected by a connecting piece or welding, and the vertical rod (1) is sleeved with a connecting pipe (4) on the upper and lower parts. The connecting pipe (4) can rotate around the vertical rod (1); the left frame body and the right frame body are arranged opposite to each other, and the upper and lower connecting pipes (4) of the vertical rod (1) on the opposite side of the left frame body and the right frame body are respectively fixedly connected to an inclined rod (5), and the inclined rod (5) connected to the upper connecting pipe (4) of the vertical rod (1) is inclined downward, and the inclined rod (5) connected to the lower connecting pipe (4) is inclined downward. The rod (5) is tilted upward, and the other ends of the two oblique rods (5) connected to the same vertical rod (1) of the frame on one side are connected to the upper and lower ends of the first rotating shaft (6), and the other ends of the two oblique rods (5) connected to the same vertical rod (1) of the frame on the other side are connected to the upper and lower ends of the third rotating shaft (10). The first rotating shaft (6) and the third rotating shaft (10) are vertically arranged, and the oblique rods (5), the first rotating shaft (6) and the third rotating shaft (10) can rotate around the corresponding vertical rod (1) along with the connecting pipe (4); A snap ring (9) is provided at each of the upper and lower ends of the first rotating shaft (6); when the oblique rods (5) on the left frame and the right frame are opened and brought together, the third rotating shaft (10) can be snapped into the snap ring (9); the second rotating shaft (7) is rotatably connected to the cross bar (3) at the top of one frame away from the oblique rod (5); one end of the pedal (8) is fixedly connected to the second rotating shaft (7) and the other end is fixedly connected to the hook (2); the hook (2) is overlapped to the cross bar (3) at the top of the other frame.

2. A portable scaffold according to claim 1, characterized in that: The vertical pole (1) is made of a lightweight metal material, such as aluminum alloy or high-strength plastic, with a diameter of 40 mm.

3. The portable scaffold according to claim 1, characterized in that: The left frame and the right frame are each provided with four horizontal bars (3) in parallel, with a distance of 300 mm between each two bars. The horizontal bars (3) are made of lightweight metal material, aluminum alloy or high-strength plastic. The diameter of the top bar is 40 mm, and the diameters of the other three bars are 30 mm.

4. The portable scaffold according to claim 1, characterized in that: The connecting pipe (4) is a steel pipe with a length of 120 mm and a diameter of 50 mm, which is mounted on the vertical poles (1) of the left frame and the right frame. Two connecting pipes are provided on each vertical pole (1), which are located 250 mm away from the upper and lower ends of the vertical pole (1).

5. The portable scaffold according to claim 1, characterized in that: The diagonal rod (5) is made of a lightweight metal material aluminum alloy with a diameter of 25 mm. One end of the diagonal rod (5) is connected to the corresponding connecting pipe (4) of the corresponding vertical rod (1) through a connecting piece or welding, and the other end is connected to the first rotating shaft (6) or the third rotating shaft (10) of the corresponding diagonal rod (5).

6. The portable scaffold according to claim 1, characterized in that: A clamping ring (9) with a diameter of 45 mm and a width of 10 mm is welded to the upper and lower ends of the first rotating shaft (6).

7. The portable scaffold according to claim 1, characterized in that: The pedal (8) has a width of 400 mm and a thickness of 50 mm and is made of a high-strength lightweight metal material.

8. The portable scaffold according to claim 1, characterized in that: The second rotating shaft (7) is made of a light metal material with a diameter of 50 mm.

9. The portable scaffold according to claim 1, characterized in that: The bottom of the vertical pole (1) is equipped with a pulley; the top of the vertical pole (1) can be equipped with a connecting piece to build a second-layer frame.

10. The portable scaffold according to claim 1, characterized in that: The connecting piece is provided with a safety lock.

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