Scaffold with double switching foot supports and using method thereof

Abstract

The invention relates to the technical field of scaffolds, in particular to a scaffold with double switching foot supports and a using method of the scaffold. Comprising a scaffold body; the working platform is arranged on the scaffold body; the four foot supports are respectively positioned at four corners of the bottom of the scaffold body, each foot support comprises a rolling roller and a foot pad, the height of the foot pad can be adjusted, and the contact between the roller and the ground or the contact between the foot pad and the ground can be realized by adjusting the height of the foot pad. The scaffold has the advantages that the foot supports are arranged at the four corners of the bottom of the scaffold body and comprise the rolling wheels and the foot pads with the height adjustable, and the foot pads are supported on the ground or separated from the ground by adjusting the height of the foot pads. During construction, the foot pads are supported on the ground so as to support the scaffold body, and during moving, the foot pads are separated from the ground so that the rolling wheels can rotate freely.

Description

Technical Field

[0001] The invention relates to the technical field of scaffolding, in particular to a scaffolding with double-switchable foot supports and a use method thereof. Background Art

[0002] Scaffolding provides a temporary platform for construction workers to work from, and is most commonly used for building construction, cleaning, lighting maintenance, and equipment maintenance. Its overall structure utilizes a "building block" design with standardized components and no loose parts. Without any tools, two workers can quickly erect an aerial work platform. Aluminum alloy scaffolding is widely used in housing construction due to its lightweight, fast assembly and disassembly, flexibility, and long service life.

[0003] However, conventional scaffolding is usually equipped with rollers at the bottom to facilitate the movement of the scaffolding on the ground. During the construction process, although the rollers are in a braked state, the contact with the ground is only a point on the arc. The structure is not stable, shakes a lot, and is relatively unsafe. The higher the scaffolding is, the greater the safety risks are. Summary of the Invention

[0004] The purpose of the present invention is to overcome the defects of the prior art and provide a scaffold with double switchable legs and a method of using the same, so as to solve the problems of the existing scaffold in use, such as small contact area between the scaffold and the ground, weak structural stability, large shaking and poor safety.

[0005] The technical solution to achieve the above purpose is:

[0006] The present invention provides a scaffold with double-switchable foot supports, comprising:

[0007] Scaffolding body;

[0008] A working platform installed on the scaffolding body;

[0009] Four foot supports are located at the four corners of the bottom of the scaffolding body. The foot supports include rollable rollers and pads. The pads are height-adjustable. By adjusting the height of the pads, the rollers or the pads can be in contact with the ground.

[0010] Specifically, the foot support also includes a fixed plate and a U-shaped frame. The fixed plate is fixed to the bottom of the scaffolding body. The U-shaped frame is rotatably arranged at the bottom of the fixed plate and opens downward. A rotating shaft is rotatably provided on the central axis of the roller, and both ends of the rotating shaft are respectively fixed to the two ends of the U-shaped frame.

[0011] Furthermore, it also includes:

[0012] A U-shaped footrest, with hinged plates at both ends of the footrest, and the upper sides of the two hinged plates are hinged to the U-shaped frame;

[0013] Two curved links, each located on either side of the roller and hinged at one end to the rotating shaft of the roller, the other ends of the two curved links hinged to a straight link, and one end of the straight link away from the curved link hinged to the lower side of the hinge plate of the footrest;

[0014] The footrest is arranged between two straight connecting rods. By moving the middle part of the footrest pedal upward or downward, the footrest pedal drives the footrest to move upward or downward through the straight connecting rod, so as to adjust the height of the footrest.

[0015] Furthermore, it also includes a U-shaped roller pedal, the two ends of the roller pedal are located on both sides of the roller and on the inner side of the U-shaped frame, and the two ends of the roller pedal are provided with an arc-shaped plate, the inner arc surface of the arc-shaped plate is abutted against the rotating shaft of the roller, and one end of the arc-shaped plate is hinged at the hinge of the straight connecting rod and the hinge plate. By pushing the middle part of the roller pedal downward, the inner arc surface of the arc-shaped plate and the rotating shaft of the roller slide relative to each other, so that the arc-shaped plate drives the pad foot to move upward through the straight connecting rod to adjust the height of the pad foot.

[0016] Furthermore, the two hinged plates of the footrest are anchored with limit rods, the anchoring depth of the limit rods is adjustable, and each side of the U-shaped frame is provided with two limit holes for inserting the limit rods, and the two limit holes are spaced apart.

[0017] When the limiting rod is inserted into a corresponding limiting hole, the height of the foot is higher than the height of the roller;

[0018] When the limiting rod is inserted into the other limiting hole, the pad rests on the ground.

[0019] Furthermore, the footrest includes:

[0020] A support plate fixed between the two straight connecting rods;

[0021] a threaded rod threadably connected to the support plate;

[0022] A pad is fixedly arranged at the lower end of the threaded rod, and the pad is supported on the ground.

[0023] The present invention also provides a method for using a scaffold with dual switchable legs, comprising the following steps:

[0024] providing scaffolding as described above;

[0025] The personnel raise the height of the footrest so that the height of the footrest is higher than the height of the roller, and push the scaffolding body to move to the position to be constructed;

[0026] After the scaffolding body is moved to the construction location, the personnel lower the height of the pads so that the pads are lowered and in contact with the ground, thereby preventing the scaffolding body from moving.

[0027] Furthermore, after the pad foot contacts the ground, the operator continues to lower the height of the pad foot and stops adjusting after the roller is off the ground.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] 1) Foot supports are installed at the four corners of the scaffolding base. These support legs consist of rollers and height-adjustable feet. The height of the feet can be adjusted to allow the feet to be supported on or off the ground. During construction, the feet rest on the ground to support the scaffolding base. During movement, the feet are lifted off the ground to allow the rollers to rotate freely.

[0030] 2) An inclined support frame is set at the four corners of the side of the scaffolding body. During construction, the inclined support frame is supported on the ground, thereby further supporting the scaffolding body and improving the stability of the scaffolding body.

[0031] 3) The footing consists of a support plate, a threaded rod, and a pad. Before using the pad for support, adjust the relative position of the threaded rod and the support plate so that the pad is on the ground and the rollers are off the ground. Alternatively, after the pad is used for support, adjust the relative position of the threaded rod and the support plate so that the rollers are off the ground, thereby preventing the rollers from continuing to drive the scaffolding body to move. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the overall structure of the scaffolding with double switchable foot supports of the present invention.

[0033] Figure 2 This is a schematic diagram of the installation position of the foot supports of the scaffolding with double switchable foot supports of the present invention.

[0034] Figures 3 to 5 It is a schematic structural diagram of the foot supports of a scaffolding with double switchable foot supports according to the present invention.

[0035] Figure 6 Schematic diagram of the support of the foot support of the scaffolding with double switchable foot supports of the present invention

[0036] Figure 7 This is a schematic diagram of the support provided by the rollers of the foot supports of the scaffolding with double switchable foot supports according to the present invention.

[0037] Legend: 1. Scaffolding body; 2. Working platform; 3. Foot support; 31. Roller; 32. Footrest; 33. Fixed plate; 34. U-shaped frame; 35. Roller pedal; 36. Footrest pedal; 37. Straight connecting rod; 38. Bent connecting rod; 39. Threaded rod; 310. First hinged rod; 311. Second hinged rod; 312. Third hinged rod; 313. Limit rod; 314. Support plate; 4. Oblique support frame. DETAILED DESCRIPTION

[0038] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0039] See Figure 1 The present invention provides a scaffold with dual-switch foot supports and a method for using the same, which solves the problems of existing scaffolds in which the scaffold has a small contact area with the ground, weak structural stability, large shaking, and poor safety during use. 1) Foot supports are provided at the four corners of the bottom of the scaffold body. The foot supports include rollers and height-adjustable pads. The pads can be supported on or off the ground by adjusting the height of the pads. During construction, the pads are supported on the ground to support the scaffold body. During movement, the pads are lifted off the ground to allow the rollers to rotate freely.

[0040] 2) An inclined support frame is set at the four corners of the side of the scaffolding body. During construction, the inclined support frame is supported on the ground, thereby further supporting the scaffolding body and improving the stability of the scaffolding body.

[0041] 3) The footing consists of a support plate, a threaded rod, and a pad. Before using the pad for support, adjust the relative position of the threaded rod and the support plate so that the pad is on the ground and the rollers are off the ground. Alternatively, after the pad is used for support, adjust the relative position of the threaded rod and the support plate so that the rollers are off the ground, thereby preventing the rollers from continuing to drive the scaffolding body to move.

[0042] The following describes a scaffold with dual switchable legs and a method of using the scaffold according to the present invention in conjunction with the accompanying drawings.

[0043] See Figure 1 , showing the overall structural diagram of the scaffolding with double switchable legs of the present invention. Figure 3 , shows a schematic structural diagram of the scaffolding with double switchable foot supports of the present invention. Figure 1 and Figure 3 , a scaffold with double switchable legs and a method of using the same are described in the present invention.

[0044] like Figure 1 and Figure 3As shown, a scaffold with dual-switch foot supports of the present invention comprises: a scaffold body 1; a working platform 2 arranged on the scaffold body 1; four foot supports 3 respectively located at the four corners of the bottom of the scaffold body 1, wherein the foot supports 3 include rollable rollers 31 and pads, and the pads can be adjusted in height. By adjusting the height of the pads, the rollers 31 can be in contact with the ground or the pads can be in contact with the ground.

[0045] Specifically, the working platform 2 is located on the top of the scaffold body 1 , and fences are provided around the working platform 2 .

[0046] In a specific embodiment, the foot support 3 also includes a fixed plate 33 and a U-shaped frame 34. The fixed plate 33 is fixed to the bottom of the scaffolding body 1. The U-shaped frame 34 is rotatably provided at the bottom of the fixed plate 33 and opened downward. A rotating shaft is rotatably provided on the central axis of the roller 31, and the two ends of the rotating shaft are respectively fixed to the two ends of the U-shaped frame 34.

[0047] Specifically, a mounting plate adapted to the fixing plate 33 is horizontally provided at the bottom of the scaffold body 1 , and the fixing plate 33 is located at the bottom of the mounting plate and is connected by bolts.

[0048] In a specific embodiment, it also includes: a U-shaped footrest pedal 36, each end of which is provided with a hinged plate, and the upper sides of the two hinged plates are hinged to the U-shaped frame 34; two bent links 38, respectively located on both sides of the roller 31 and one end is hinged to the rotating shaft of the roller 31, and the other ends of the two bent links 38 are hinged with a straight link 37, and the end of the straight link 37 away from the bent link 38 is hinged to the lower side of the hinged plate of the footrest pedal 36; the foot is arranged between the two straight links 37, and by moving the middle part of the footrest pedal 36 upward or downward, the footrest pedal 36 drives the foot to move upward or downward through the straight link 37 to adjust the height of the foot.

[0049] Specifically, a first hinge rod 310 is provided at the upper end of the hinge plate of the footrest 36. The first hinge rod 310 passes through the U-shaped frame 34, and the footrest 36 and the U-shaped frame 34 are hingedly connected by the first hinge rod 310. A second hinge rod 311 is provided at the hinge point between the straight link 37 and the curved link 38, and the straight link 37 and the curved link 38 are hingedly connected by the second hinge rod 311.

[0050] Specifically, the length of the straight connecting rod 37 is shorter than the length of the bent connecting rod 38 .

[0051] In one embodiment, a U-shaped roller pedal 35 is further included. The roller pedal 35 has two ends located on either side of the roller 31 and inside the U-shaped frame 34. Curved plates are provided at both ends of the roller pedal 35. The inner curved surface of the curved plate abuts against the rotating shaft of the roller 31, and one end of the curved plate is hinged to the hinge of a straight link 37 and the hinge plate. By moving the middle portion of the roller pedal 35 downward, the inner curved surface of the curved plate slides relative to the rotating shaft of the roller 31, thereby causing the curved plate to move the foot upward via the straight link 37, thereby adjusting the height of the foot. To adjust the height of the foot, the foot pedal 36 needs to be moved upward. Since the middle portion of the foot pedal 36 is close to the ground, moving it upward is less convenient than moving it downward. Therefore, the roller pedal 35 can be moved downward to achieve the same effect of increasing the height of the foot. When the roller pedal 35 is pushed downward, the middle part of the footrest pedal 36 moves upward synchronously. When the height of the middle part of the roller pedal 35 is consistent with the height of the footrest pedal 36, the roller pedal 35 is located on the inner side of the footrest pedal 36. At this time, the middle part of the footrest pedal 36 is at a sufficient distance from the ground, and the middle part of the footrest pedal 36 is swung upward, thereby preventing the footrest pedal 36 from interfering with the roller pedal 35.

[0052] Specifically, a third hinge rod 312 is provided at the hinged locations of the roller pedal 35 , the footrest pedal 36 , and the straight connecting rod 37 , and the three are hingedly connected via the third hinge rod 312 .

[0053] Preferably, a footrest is provided in the middle of the roller pedal 35 and the footrest 36. The top surface and the bottom surface of the footrest are both provided with anti-slip strips.

[0054] In a specific embodiment, a limiting rod 313 is anchored on both hinged plates of the footrest pedal 36, and the anchoring depth of the limiting rod 313 is adjustable. Two limiting holes for inserting the limiting rod 313 are provided on each side of the U-shaped frame 34, and the two limiting holes are spaced apart. When the limiting rod 313 is inserted into a corresponding limiting hole, the height of the footrest is higher than the height of the roller 31; when the limiting rod 313 is inserted into the other limiting hole, the footrest rests on the ground.

[0055] Preferably, the limiting rod 313 is an indexing pin.

[0056] Preferably, a spring is sleeved on the limiting rod 313, and the spring provides a force for the limiting rod 313 to move inward, thereby preventing the limiting pin 313 from falling off from the corresponding limiting hole.

[0057] In one embodiment, the footrest comprises: a support plate 314 secured between two straight connecting rods 37; a threaded rod 39 threadedly connected to the support plate 314; and a backing plate 32 secured to the lower end of the threaded rod 39, supporting the backing plate 32 on the ground. The threaded rod 39 is provided with two nuts, one located on the upper and lower sides of the support plate 314. Adjusting the two nuts adjusts the distance between the support plate 314 and the backing plate 32. The backing plate 32 and the threaded rod 39 are perpendicular to each other. When the backing plate 32 is horizontally attached to the ground, the threaded rod 39 remains vertical, and the stopper rod 313 is inserted into the corresponding stopper hole. After the stopper rod 313 is locked in place, if the ground is uneven and the backing plate 32 is not in contact with the ground, the nuts can be adjusted to adjust the height of the backing plate 32 upward or downward, thereby resting the backing plate 32 against the ground.

[0058] Preferably, by adjusting the nut, the distance between the pad 32 and the support plate 314 is increased. After the limiting rod 313 is inserted into the corresponding limiting hole, when the pad 32 is supported on the ground, the roller 31 can be separated from the ground, thereby preventing the roller 31 from continuing to roll.

[0059] Specifically, the outer sides of both ends of the footrest pedal 36 and the outer sides of both ends of the roller pedal 35 are provided with stiffening ribs.

[0060] In a specific embodiment, four oblique support frames 4 are further included, which are respectively located at the four corners of the side of the scaffold body 1 .

[0061] Specifically, the diagonal support frame 4 includes a long diagonal support and a short diagonal support. The upper ends of the long and short diagonal supports are both hingedly connected to collars that are movably mounted on the scaffolding body 31. The lower ends of the short diagonal supports are hingedly connected to the long diagonal supports, and the lower ends of the long diagonal supports are provided with legs for ground support. By arranging the long and short diagonal supports, the angles between the long and short diagonal supports can be adjusted, thereby adjusting the height of the legs at the lower ends of the long diagonal supports. During construction, the legs rest against the ground, and by supporting the legs of the long diagonal supports on the ground, the scaffolding body 31 is further supported, ensuring its stability.

[0062] The present invention also provides a method for using a scaffold with dual switchable legs, comprising the following steps:

[0063] providing scaffolding as described above;

[0064] The personnel adjust the height of the footrest to make it higher than the height of the roller 31, and push the scaffold body 1 to move to the position to be constructed;

[0065] After the scaffold body 1 is moved to the location to be constructed, the personnel lower the height of the footrests so that the footrests are lowered and in contact with the ground, thereby preventing the scaffold body 1 from moving.

[0066] In a specific embodiment, after the foot pad contacts the ground, the operator continues to lower the height of the foot pad, and stops adjusting after the roller 31 leaves the ground.

[0067] The following is a detailed description of the use of the scaffolding with double-switchable foot supports of the present invention.

[0068] The user pushes the footrest pedal 36 upward, raising the footrest via the direct link 37 and lifting it off the ground. Alternatively, the user pushes the roller pedal 35 downward, causing the inner curved surface of the curved rod on the roller pedal 35 to slide relative to the rotating shaft of the roller 31, driving the footrest upward via the direct link 37. Once the footrest has been raised to the desired height, the limiting rod 313 on the footrest pedal 36 is inserted into the corresponding limiting hole to lock the footrest.

[0069] Then the personnel push the scaffold body 1 to the construction location.

[0070] After being pushed to the construction position, the personnel pull out the limit rod 313 to disengage the limit rod 313 from the limit hole, and then push the foot pedal 36 downward to drive the foot pedal 36 to move downward through the straight connecting rod 37 and make the foot contact with the ground, and then insert the limit rod 313 into the corresponding limit hole.

[0071] When the ground is uneven, a person can adjust the nut to move the threaded rod 39 upward or downward, so that the pad 32 moves upward or downward and contacts the ground.

[0072] After the pad 32 contacts the ground, the operator can adjust the nut to move the threaded rod 39 downward, thereby moving the pad 32 downward. However, since the pad 32 is in contact with the ground, the roller 31 and the scaffold body 1 will move upward, causing the roller 31 to lift off the ground, thus preventing the roller 31 from moving the scaffold body 1 due to its rolling. Alternatively, the position of the pad 32 can be adjusted before it contacts the ground. After the footrest 36 is moved, the pad 32 is in contact with the ground, and the roller 31 can be lifted off the ground.

[0073] After the pad 32 contacts the ground, the personnel adjust the diagonal support frame 4 so that the support foot at the lower end of the long diagonal support contacts the ground, thereby increasing the stability of the scaffold body 1.

[0074] The present invention has been described in detail above with reference to the embodiments of the accompanying drawings. A person skilled in the art can make various modifications to the present invention based on the above description. Therefore, certain details in the embodiments should not be construed as limiting the present invention. The scope of protection of the present invention shall be determined by the scope defined in the appended claims.

Claims

1. A scaffold with double switchable legs, characterized by: include: Scaffolding body (1); A working platform (2) provided on the scaffold body (1); Four foot supports (3) are respectively located at the four corners of the bottom of the scaffold body (1), and the foot supports (3) include rollable rollers (31) and pads. The pads can be adjusted in height. By adjusting the height of the pads, the rollers (31) can be in contact with the ground or the pads can be in contact with the ground.

2. The scaffolding with double switchable legs according to claim 1, characterized in that: The foot support (3) further comprises a fixing plate (33) and a U-shaped frame (34), wherein the fixing plate (33) is fixed to the bottom of the scaffold body (1), and the U-shaped frame (34) is rotatably arranged at the bottom of the fixing plate (33) and opened downward, and a rotating shaft is rotatably provided on the central axis of the roller (31), and the two ends of the rotating shaft are respectively fixed to the two ends of the U-shaped frame (34).

3. The scaffolding with double switchable legs according to claim 2, characterized in that: Also includes: A U-shaped footrest (36), wherein both ends of the footrest (36) are provided with hinge plates, and the upper sides of the two hinge plates are hinged to the U-shaped frame (34); Two curved connecting rods (38) are respectively located on both sides of the roller (31) and one end of the curved connecting rods (38) is hinged to the rotating shaft of the roller (31), and the other ends of the two curved connecting rods (38) are hinged to a straight connecting rod (37), and one end of the straight connecting rod (37) away from the curved connecting rod (38) is hinged to the lower side of the hinge plate of the footrest (36); The pad foot is arranged between two straight connecting rods (37). By moving the middle part of the pad foot pedal (36) upward or downward, the pad foot pedal (36) drives the pad foot to move upward or downward through the straight connecting rod (37), so as to adjust the height of the pad foot.

4. The scaffolding with double switchable legs according to claim 3, characterized in that: The invention also includes a U-shaped roller pedal (35), the two ends of the roller pedal (35) are located on both sides of the roller (31) and on the inner side of the U-shaped frame (34), and the two ends of the roller pedal (35) are provided with an arc plate, the inner arc surface of the arc plate is against the rotating shaft of the roller (31), and one end of the arc plate is hinged to the hinge of the straight connecting rod (37) and the hinge plate. By moving the middle part of the roller pedal (35) downward, the inner arc surface of the arc plate and the rotating shaft of the roller (31) slide relative to each other, so that the arc plate drives the pad foot to move upward through the straight connecting rod (37), so as to achieve the height adjustment of the pad foot.

5. The scaffolding with double switchable legs according to claim 3, characterized in that: The two hinged plates of the footrest (36) are anchored with a limiting rod (313), the anchoring depth of the limiting rod (313) is adjustable, and each side of the U-shaped frame (34) is provided with two limiting holes for inserting the limiting rod (313), and the two limiting holes are spaced apart. When the limiting rod (313) is inserted into a corresponding limiting hole, the height of the foot is higher than the height of the roller (31); When the limiting rod (313) is inserted into the other limiting hole, the pad foot rests on the ground.

6. The scaffolding with double switchable legs according to claim 3, characterized in that: The footrest comprises: A support plate (314) fixedly arranged between the two straight connecting rods (37); a threaded rod (39) threadedly connected to the support plate (314); A pad (32) is fixed to the lower end of the threaded rod (39), and the pad (32) is supported on the ground.

7. A method for using a scaffold with dual switchable legs, characterized by: The steps for use are as follows: Providing a scaffold as claimed in claim 1; The personnel adjust the height of the footrest to be higher than the height of the roller (31), and push the scaffold body (1) to move to the position to be constructed; After the scaffolding body (1) is moved to the position to be constructed, the personnel lower the height of the pads so that the pads are lowered and contact the ground, thereby preventing the scaffolding body (1) from moving.

8. A method for using a scaffold with dual switchable legs according to claim 7, characterized in that: After the pad foot contacts the ground, the operator continues to lower the height of the pad foot and stops adjusting after the roller (31) leaves the ground.

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