A stable scaffold with additional support

Abstract

The present invention discloses a stable scaffold with additional support, which relates to the technical field of scaffold construction, and comprises a main steel pipe, a connecting mechanism and a supporting mechanism, wherein one end of the main steel pipe is provided with a connecting mechanism, the outer wall of the main steel pipe is provided with a supporting mechanism, the top of the supporting mechanism is provided with a supporting platform, and one side of the supporting platform is connected to the outer wall of the main steel pipe. By setting the main steel pipe and the supporting mechanism, the load generated by the force on the supporting platform is moved downward, and the load is dispersed to the main steel pipe through the supporting steel pipe and the supporting pipe fittings, thereby reducing the height of the load generated after the support platform is subjected to force, and at the same time reducing the center of gravity height of the support platform, thereby improving the overall stability of the scaffold, reducing the time consumption required for moving the scaffolding poles, improving the construction efficiency of the project, reducing the construction difficulty of the workers during construction, and reducing the construction cost.

Description

Technical Field

[0001] The invention relates to the technical field of scaffold construction, in particular to a stable scaffold with additional supports. Background Art

[0002] In recent years, my country's construction industry has flourished. With the continuous acceleration of urbanization, road reconstruction, urban renewal, and green construction have put forward higher requirements for scaffolding support systems. As a temporary support system, scaffolding is mainly used for external operations and support operations.

[0003] During on-site construction, for safety reasons, supporting scaffolding is always equipped with a large safety margin to ensure smooth construction. However, excessive safety margins not only significantly impact construction costs, but also place higher demands on the on-site construction environment and management.

[0004] A supporting scaffold is essentially a force-bearing system that transfers the upper load to the base while ensuring overall stability. However, when there is a concentrated load on the scaffold, it is often necessary to reduce the spacing between the scaffolding uprights to increase the number of lower support points to meet the required force. This increases construction difficulty and cost, as well as the requirements for the construction environment. Summary of the Invention

[0005] The object of the present invention is to provide a stable scaffold with additional supports to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0007] A stable scaffold with additional support, comprising a main steel pipe, a connecting mechanism and a supporting mechanism;

[0008] One end of the main steel pipe is provided with a connecting mechanism, the outer wall of the main steel pipe is provided with a supporting mechanism, the top of the supporting mechanism is provided with a supporting platform, and one side of the supporting platform is connected to the outer wall of the main steel pipe.

[0009] The connecting mechanism includes a connecting sleeve, which is fastened to both ends of the main steel pipe via bolts. A rotating rod is hingedly connected to the outer wall of the connecting sleeve, which is provided with a clamping rail. A protrusion is provided at one end of the rotating rod, which is clamped to the inner wall of the clamping rail via the protrusion. A protruding rod is provided at the other end of the rotating rod, and a block is provided on the outer wall of the connecting sleeve to limit the deflection angle of the protruding rod. The connecting mechanism at the bottom end of the main steel pipe is in contact with the ground for support. The rotating rod is deflected along one side of the connecting sleeve. The protruding rod at one end of the rotating rod contacts the block, allowing the end of the rotating rod to be supported on the ground. This increases the contact points between the main steel pipe and the ground and improves the stability of the main steel pipe.

[0010] The support mechanism includes a connecting disc welded to the outer wall of the main steel pipe. A connecting pipe is installed on one side of the connecting disc. A supporting sleeve is installed on the top of the connecting disc. A supporting pipe is installed on the outer wall of the supporting sleeve at an angle. A supporting disc is installed on the top of the supporting pipe. A supporting steel pipe is installed on the upper surface of the supporting disc. The supporting steel pipe supports the top support platform, which is supported by the supporting pipe. The four supporting pipes transfer the load to the main steel pipe, dispersing and shifting the load generated by the support platform downward, lowering its center of gravity and improving its stability.

[0011] The support platform includes a movable rotating rod, the bottom of which is connected to the top of the supporting steel pipe. A connecting rail is mounted on one end of the movable rotating rod. A support pad is provided on the top of the movable rotating rod. A transmission gear set is provided on one side of the connecting rail. A clamp is provided on one side of the connecting rail. A roller is provided on one side of the clamp. A positioning block is provided on one side of the movable rotating rod. The support pads are evenly spaced on one side of the connecting rail. The gaps between the support pads and the connecting rail reduce the impact of the support platform on the environment, ensuring light and ventilation in the surrounding environment.

[0012] There are three rotating rods and three rails, each equidistantly spaced around the outer wall of the connecting sleeve. A slot is defined on one side of the rail. By deflecting the rotating rod along the outer wall of the connecting sleeve, the lug at one end of the rotating rod inserts into the inner wall of the rail. The connecting sleeve is then rotated to lock the two sleeves in place, facilitating the installation of the main steel pipe.

[0013] One side of the connecting disc is provided with through-holes at equal intervals, with wedge-shaped blocks clamped onto the inner walls of the through-holes. Clamping holes are provided at both ends of the connecting pipe, and one end of the connecting pipe is connected to the connecting disc via the wedge-shaped blocks passing through the through-holes and the clamping holes. Grooves are provided at both ends of the connecting pipe, and the connecting pipe is clamped to one side of the connecting disc via the grooves. After aligning the through-holes on one side of the connecting disc with the clamping holes at one end of the connecting pipe, the wedge-shaped blocks are inserted into the through-holes and the clamping holes to connect the connecting pipe to the connecting disc, thereby improving the installation efficiency of the connecting pipe.

[0014] The top of the support steel pipe is welded to the upper surface of the support disc, and the top of the support pipe is hinged to the bottom of the support disc. There are four support pipes, equidistantly distributed around the bottom of the support disc. The support sleeve is connected to the main steel pipe via bolts. To remove the support steel pipe, turn the bolt on one side of the support sleeve, then deflect the top of the support pipe along the side of the support disc, and then move the support steel pipe, making it easier for the user to adjust the position of the support steel pipe.

[0015] The transmission gear set includes a gear, a folding screw and a tightening screw. The folding screw is movably connected to the inner wall of the connecting slide rail, and the tightening screw is movably connected to the side of the connecting slide rail away from the folding screw. The tightening screw and the tightening screw are both provided with a gear at the same end. The gear at one end of the tightening screw is meshed with the gear at one end of the tightening screw. A slide groove is provided on one side of the support plate. The movable rotating rod is clamped with the support plate through the slide groove. One end of the movable rotating rod is hinged with a threaded sleeve. The inner wall of the threaded sleeve is threadedly connected to the folding screw. By rotating the folding screw, the folding screw drives the threaded sleeve to move along the inner wall of the connecting slide rail, and at the same time, the threaded sleeve drives the movable rotating rod to deflect, so that the support plates fit together and fold, reducing the volume of the support platform and facilitating the user's transportation and disassembly of the support platform.

[0016] A sliding groove is provided on a side of the connecting rail away from the movable rotating rod, and the clamping plate is movably connected to the inner wall of the sliding groove of the connecting rail. A threaded hole is provided on one side of the clamping plate, and the clamping plate is connected to the tightening screw rod through the threaded hole. One end of the tightening screw rod is connected to the roller, and the outer wall of the roller is connected to the outer wall of the main steel pipe. When the folding screw rod is rotated, the tightening screw rod is driven to rotate by the gear, so that the tightening screw rod drives the clamping plate to move, so that the clamping plate and the main steel pipe are tightly clamped. At the same time, the outer wall of the roller is configured as a curved surface. When the folding screw rod rotates to unfold the support platform, the roller and the outer wall of the main steel pipe are tightly fitted. When the support platform swings downward, the roller rotates downward and drives the tightening screw rod to rotate, so that the clamping plate is further tightly clamped to the main steel pipe.

[0017] Two hinged movable rods are provided, and four positioning blocks are provided, one side of which is connected to the inner wall of the support steel pipe. The engagement of the positioning blocks with the inner wall of the support steel pipe limits the horizontal position of the support platform, preventing horizontal sliding of the support platform and further improving its stability.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. Through the setting of the main steel pipe and the supporting mechanism, the load generated by the force on the supporting platform is moved downward, and the load is dispersed to the main steel pipe through the supporting steel pipe and the supporting pipe fittings, thereby reducing the height of the load generated by the support platform after the force is applied. At the same time, the center of gravity height of the support platform is reduced, the overall stability of the scaffolding is improved, the time required to move the scaffolding poles is reduced, the construction efficiency of the project is improved, and the construction difficulty and cost are reduced.

[0020] 2. The setting of the main steel pipe and the connecting mechanism makes it convenient for the staff to splice and disassemble the main steel pipe, and convenient for the staff to splice the scaffolding according to the needs of the construction site, meeting the needs of various construction sites. At the same time, the support of the ground by the connecting mechanism at the bottom of the main steel pipe limits the shaking of the main steel pipe and improves the stability of the main steel pipe.

[0021] 3. The arrangement of the main steel pipe, support mechanism and support platform makes it easy for workers to set up the support platform on the top of the support mechanism. The support of the support platform by the support mechanism increases the support points of the support platform and improves the stability of the support platform. At the same time, the fit between the roller and the main steel pipe limits the shaking of the support platform, further improving the overall stability of the scaffolding. The support platform is folded by the transmission gear set, which makes it easy for users to disassemble and carry the support platform. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0023] Figure 1 It is a structural schematic diagram of the present invention;

[0024] Figure 2 It is a front view structural schematic diagram of the present invention;

[0025] Figure 3 It is a schematic diagram of the top structure of the present invention;

[0026] Figure 4 It is a schematic diagram of the support platform structure of the present invention;

[0027] Figure 5 It is a schematic diagram of the cross-sectional structure of the support platform of the present invention;

[0028] Figure 6 It is a schematic structural diagram of the support mechanism of the present invention;

[0029] Figure 7 It is a schematic diagram of the connection structure between the support mechanism and the main steel pipe of the present invention;

[0030] Figure 8 1 is a schematic cross-sectional structural diagram of the connecting mechanism of the present invention;

[0031] Figure 9 The present invention Figure 1 Enlarged view of point A in the middle;

[0032] Figure 10 The present invention Figure 1 Enlarged view of point B in the middle.

[0033] In the figure: 1. Main steel pipe; 2. Connecting mechanism; 201. Connecting sleeve; 202. Turning rod; 203. Rail; 3. Supporting mechanism; 301. Connecting pipe; 302. Connecting disc; 303. Supporting sleeve; 304. Supporting pipe; 305. Supporting disc; 306. Supporting steel pipe; 4. Supporting platform; 401. Connecting slide rail; 402. Movable turning rod; 403. Supporting pad; 404. Transmission gear set; 405. Clamp; 406. Roller; 407. Positioning block. DETAILED DESCRIPTION

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0035] See also Figures 1-10 , the present invention provides a technical solution:

[0036] A stable scaffold with additional support, comprising a main steel pipe 1, a connecting mechanism 2 and a supporting mechanism 3;

[0037] A connecting mechanism 2 is provided at one end of the main steel pipe 1, a supporting mechanism 3 is provided on the outer wall of the main steel pipe 1, a supporting platform 4 is provided on the top of the supporting mechanism 3, and one side of the supporting platform 4 is connected to the outer wall of the main steel pipe 1;

[0038] The connecting mechanism 2 includes a connecting sleeve 201, which is fastened to both ends of the main steel pipe 1 via bolts. A rotating rod 202 is hingedly connected to the outer wall of the connecting sleeve 201, and a clamping rail 203 is provided on the outer wall of the connecting sleeve 201. A protrusion is provided at one end of the rotating rod 202, and the rotating rod 202 is clamped to the inner wall of the clamping rail 203 via the protrusion. The other end of the rotating rod 202 is provided with a protruding rod, and a block is provided on the outer wall of the connecting sleeve 201 to limit the deflection angle of the protruding rod. The connecting mechanism 2 at the bottom end of the main steel pipe 1 is in contact with the ground for support, and the rotating rod 202 is deflected along one side of the connecting sleeve 201. The protruding rod at one end of the rotating rod 202 contacts the block, so that the end of the rotating rod 202 is supported by the ground, increasing the contact points of the main steel pipe 1 with the ground and improving the stability of the main steel pipe 1.

[0039] There are three rotating rods 202 and three clamping rails 203, which are equidistantly distributed around the outer wall of the connecting sleeve 201. A slot is provided on one side of the clamping rail 203. The rotating rod 202 is deflected along the outer wall of the connecting sleeve 201 so that the protrusion at one end of the rotating rod 202 is inserted into the inner wall of the clamping rail 203. The connecting sleeve 201 is then rotated to lock the position between the two connecting sleeves 201, making it easier for the user to install the main steel pipe 1.

[0040] The support mechanism 3 includes a connecting disc 302, which is welded to the outer wall of the main steel pipe 1. A connecting pipe 301 is installed on one side of the connecting disc 302. A supporting sleeve 303 is installed on the top of the connecting disc 302. A supporting pipe 304 is installed on the outer wall of the supporting sleeve 303 at an angle. A supporting disc 305 is installed on the top of the supporting pipe 304, and a supporting steel pipe 306 is installed on the upper surface of the supporting disc 305. The supporting steel pipe 306 supports the top support platform 4, which is supported by the supporting pipe 304. The four supporting pipes 304 transfer the load to the main steel pipe 1, dispersing the load generated by the supporting platform 4 downward, lowering the center of gravity of the supporting platform 4, and improving the stability of the supporting platform 4.

[0041] One side of the connecting disc 302 is provided with through-holes at equal intervals, with wedge-shaped blocks snapping onto the inner walls of the through-holes. Both ends of the connecting pipe 301 have snap-in holes, and one end of the connecting pipe 301 passes through the through-holes and snap-in holes to connect to the connecting disc 302. Both ends of the connecting pipe 301 have grooves, which snap into place with one side of the connecting disc 302. After aligning the through-holes on one side of the connecting disc 302 with the snap-in holes on one end of the connecting pipe 301, the wedge-shaped blocks are inserted into the through-holes and snap-in holes to connect the connecting pipe 301 to the connecting disc 302, improving the installation efficiency of the connecting pipe 301.

[0042] The top of the support steel pipe 306 is welded to the upper surface of the support disc 305. The top of the support pipe 304 is hinged to the bottom of the support disc 305. There are four support pipes 304, equidistantly distributed around the bottom of the support disc 305. The support sleeve 303 is bolted to the main steel pipe 1. To remove the support steel pipe 306, turn the bolt on one side of the support sleeve 303, then deflect the top of the support pipe 304 along the side of the support disc 305, and then move the support steel pipe 306, making it easier for the user to adjust the position of the support steel pipe 306.

[0043] The support platform 4 includes a movable rotating rod 402, the bottom of which is connected to the top of the supporting steel pipe 306. A connecting rail 401 is mounted on one end of the movable rotating rod 402, and a support pad 403 is provided on the top of the movable rotating rod 402. A transmission gear set 404 is provided on one side of the connecting rail 401. A clamping plate 405 is provided on one side of the connecting rail 401, and a roller 406 is provided on one side of the clamping plate 405. A positioning block 407 is provided on one side of the movable rotating rod 402. The support pads 403 are evenly spaced on one side of the connecting rail 401. The gap between the support pads 403 and the connecting rail 401 reduces the impact of the support platform 4 on the environment, ensuring light and ventilation in the surrounding environment.

[0044] The transmission gear set 404 includes a gear, a folding screw and a tightening screw. The folding screw is movably connected to the inner wall of the connecting slide 401. The tightening screw is movably connected to the side of the connecting slide 401 away from the folding screw. The tightening screw and the tightening screw are both provided with a gear at the same end. The gear at one end of the tightening screw meshes with the gear at one end of the tightening screw. A slide groove is provided on one side of the support plate 403. The movable rotating rod 402 is engaged with the support plate 403 through the slide groove. One end of the movable rotating rod 402 is hinged with a threaded sleeve. The inner wall of the threaded sleeve is threadedly connected to the folding screw. By rotating the folding screw, the folding screw drives the threaded sleeve to move along the inner wall of the connecting slide 401, and at the same time, the threaded sleeve drives the movable rotating rod 402 to deflect, so that the support plates 403 are folded together, reducing the volume of the support platform 4 and facilitating the user's transportation and disassembly of the support platform 4.

[0045] A sliding groove is provided on one side of the connecting rail 401 away from the movable rotating rod 402, and a clamping plate 405 is movably connected to the inner wall of the sliding groove of the connecting rail 401. A threaded hole is provided on one side of the clamping plate 405, and the clamping plate 405 is connected to the tightening screw rod through the threaded hole. One end of the tightening screw rod is connected to the roller 406, and the outer wall of the roller 406 is connected to the outer wall of the main steel pipe 1. When the folding screw rod is rotated, the tightening screw rod is driven to rotate by the gear, so that the tightening screw rod drives the clamping plate 405 to move, so that the clamping plate 405 and the main steel pipe are tightly clamped. At the same time, the outer wall of the roller 406 is set as a curved surface. When the folding screw rod rotates to unfold the support platform 4, the roller 406 is tightly fitted with the outer wall of the main steel pipe 1. When the support platform 4 swings downward, the roller 406 rotates downward and drives the tightening screw rod to rotate, so that the clamping plate 405 is further tightly clamped with the main steel pipe 1.

[0046] Two movable rotating rods 402 are provided, which are hingedly connected to each other. Four positioning blocks 407 are provided, and one side of the positioning blocks 407 is connected to the inner wall of the support steel pipe 306. The engagement of the positioning blocks 407 with the inner wall of the support steel pipe 306 limits the horizontal position of the support platform 4, preventing the support platform 4 from sliding horizontally and further improving the stability of the support platform 4.

[0047] Working principle of the present invention:

[0048] When assembling the scaffold as a whole, the connecting sleeve 201 is fixed to the two ends of the main steel pipe 1 by bolts, and then the main steel pipe 1 with the fixed connecting sleeve 201 is connected, and the protrusion at one end of the rotating rod 202 on the connecting sleeve 201 is plugged into the groove of the clamping rail 203 on the other connecting sleeve 201, and then the connecting sleeve 201 is rotated along one end of the main steel pipe 1, and one end of the rotating rod 202 is locked with the clamping rail 203, so that the two main steel pipes 1 are connected. Then, weld the connecting disc 302 on the outer wall of the main steel pipe 1, and clamp one side of the connecting disc 302 with one end of the connecting pipe 301 so that the clamping hole at one end of the connecting pipe 301 matches the through hole on one side of the connecting disc 302. Then, insert the wedge block into the through hole to connect the connecting pipe 301 with the connecting disc 302. Following the horizontal and vertical angles of the connecting disc 302, the connecting pipe 301 and the connecting disc 302 are arranged in sequence to form a rectangular frame;

[0049] After that, the support sleeve 303 is fastened to the upper surface of the connecting disc 302 by bolts, and a support pipe 304 is tilted on one side of the support sleeve 303, and the top of the support pipe 304 is hinged to the support disc 305. Then, the support steel pipe 306 is welded to the upper surface of the support disc 305, and the support platform 4 is placed on the support mechanism 3, and the positioning block 407 is engaged with the inner wall of the support steel pipe 306. Then, the folding screw is rotated to drive the movable rotating rod 402 to deflect through the threaded sleeve, so that the movable rotating rod 402 opens the connecting slide rail 401 and the support pad 403, so that the roller 406 on one side of the connecting slide rail 401 fits the outer wall of the main steel pipe 1. While rotating the folding screw, the tightening screw is driven to rotate through the gear meshing, and the tightening screw drives the clamping plate 405 to clamp the outer wall of the main steel pipe 1. Then, the support platform 4 is used for construction work by the staff;

[0050] When the staff is working on the support platform 4, the support platform 4 transfers the gravity to the support steel pipe 306, and the support steel pipe 306 transfers the gravity to the support pipe 304 through the support disc 305 at the bottom of the support steel pipe 306. The support pipe 304 is tilted and annularly distributed at the bottom of the support disc 305. The bottom end of the support pipe 304 is connected to the support sleeve 303, so that the gravity load of the support pipe 304 is transferred to the main steel pipe 1. The connecting disc 302 welded on the main steel pipe 1 limits the position of the support sleeve 303 and supports the support sleeve 303 at the same time, so that the connecting discs 302 on two adjacent main steel pipes 1 are connected through the connecting pipe 301, limiting the distance between the main steel pipes 1, so that a triangular stable structure is formed between the two adjacent support pipes 304 and the connecting pipe 301 on one side, thereby lowering the center of gravity of the support platform 4 and ensuring the stability of the support platform 4;

[0051] When the support pad 403 and the connecting slide rail 401 slide downward along the main steel pipe 1, the roller 406 rotates downward and drives the tightening screw to rotate, and the tightening screw drives the clamping plate 405 to move, so that the clamping plate 405 is further tightly clamped with the main steel pipe 1 to ensure the stability of the support platform 4;

[0052] When the connection mechanism 2 at the bottom end of the main steel pipe 1 contacts and supports the ground, the rotating rod 202 is deflected along one side of the connecting sleeve 201, and the protruding rod at one end of the rotating rod 202 contacts the block, so that the end of the rotating rod 202 is supported by the ground, increasing the contact points between the main steel pipe 1 and the ground and improving the stability of the main steel pipe 1;

[0053] When moving the height position of the support platform 4, rotate the bolt on one side of the support sleeve 303 to detach the support sleeve 303 from the outer wall of the main steel pipe 1, then adjust the angle of the support pipe 304, deflect the top of the support pipe 304 along one side of the support disc 305, and fasten the support sleeve 303 to the upper surface of another welded connecting disc 302, move the height position of the support steel pipe 306, then rotate the folding screw to fold the support platform 4, and then place the support platform 4 on the support steel pipe 306 at the new height.

[0054] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0055] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or substitute equivalents for some of the technical features. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A stable scaffold with additional support, characterized by: It comprises a main steel pipe (1), a connecting mechanism (2) and a supporting mechanism (3); One end of the main steel pipe (1) is provided with a connecting mechanism (2), the outer wall of the main steel pipe (1) is provided with a supporting mechanism (3), the top of the supporting mechanism (3) is provided with a supporting platform (4), and one side of the supporting platform (4) is connected to the outer wall of the main steel pipe (1); The support mechanism (3) comprises a connecting disc (302), the connecting disc (302) being welded to the outer wall of the main steel pipe (1), a connecting pipe (301) being installed on one side of the connecting disc (302), a supporting sleeve (303) being provided on the top of the connecting disc (302), a supporting pipe (304) being provided obliquely on the outer wall of the supporting sleeve (303), a supporting disc (305) being installed on the top end of the supporting pipe (304), and a supporting steel pipe (306) being provided on the upper surface of the supporting disc (305); The support platform (4) includes a movable rotating rod (402), the bottom of the movable rotating rod (402) is connected to the top of the supporting steel pipe (306), one end of the movable rotating rod (402) is installed with a connecting slide rail (401), the top of the movable rotating rod (402) is provided with a supporting pad (403), one side of the connecting slide rail (401) is provided with a transmission gear set (404), one side of the connecting slide rail (401) is provided with a clamping plate (405), one side of the clamping plate (405) is provided with a roller (406), and one side of the movable rotating rod (402) is provided with a positioning block (407); The top end of the support steel pipe (306) is welded to the upper surface of the support disc (305), the top end of the support pipe (304) is hinged to the bottom of the support disc (305), the number of the support pipes (304) is four, and the support pipes (304) are equidistantly distributed in a ring around the bottom of the support disc (305), and the support sleeve (303) is connected to the main steel pipe (1) by bolts.

2. The stable scaffolding with additional support according to claim 1, characterized in that: The connecting mechanism (2) comprises a connecting sleeve (201), the connecting sleeve (201) is fastened to both ends of the main steel pipe (1) by bolts, the outer wall of the connecting sleeve (201) is hinged with a rotating rod (202), the outer wall of the connecting sleeve (201) is provided with a clamping rail (203), one end of the rotating rod (202) is provided with a protrusion, the rotating rod (202) is clamped with the inner wall of the clamping rail (203) through the protrusion, the other end of the rotating rod (202) is provided with a protrusion, and the outer wall of the connecting sleeve (201) is provided with a blocking block for limiting the deflection angle of the protrusion.

3. The stable scaffolding with additional support according to claim 2, characterized in that: The rotating rods (202) and the clamping rails (203) are both provided in three numbers. The rotating rods (202) and the clamping rails (203) are distributed in an annular manner with equal distances with respect to the outer wall of the connecting sleeve (201). A notch is provided on one side of the clamping rail (203).

4. The stable scaffolding with additional support according to claim 1, characterized in that: One side of the connecting disc (302) is provided with through holes at equal intervals in an annular manner, and a wedge-shaped block is clamped on the inner wall of the through hole. Both ends of the connecting pipe (301) are provided with clamping holes, and one end of the connecting pipe (301) is connected to the connecting disc (302) through the through hole and the clamping hole via the wedge-shaped block.

5. The stable scaffolding with additional support according to claim 1, characterized in that: The transmission gear set (404) includes a gear, a folding screw and a tightening screw. The folding screw is movably connected to the inner wall of the connecting slide rail (401). The tightening screw is movably connected to the side of the connecting slide rail (401) away from the folding screw. The tightening screw and the tightening screw are both provided with a gear at the same end. The gear at one end of the tightening screw is meshed with the gear at one end of the tightening screw. A sliding groove is provided on one side of the support pad (403). The movable rotating rod (402) is clamped with the support pad (403) through the sliding groove. One end of the movable rotating rod (402) is hinged with a threaded sleeve. The inner wall of the threaded sleeve is threadedly connected to the folding screw.

6. The stable scaffolding with additional support according to claim 5, characterized in that: A sliding groove is provided on the side of the connecting slide rail (401) away from the movable rotating rod (402), and the splint (405) is movably connected to the inner wall of the sliding groove of the connecting slide rail (401). A threaded hole is provided on one side of the splint (405), and the splint (405) is connected to the tightening screw rod through the threaded hole. One end of the tightening screw rod is connected to the roller (406), and the outer wall of the roller (406) is connected to the outer wall of the main steel pipe (1).

7. The stable scaffolding with additional support according to claim 6, characterized in that: There are two movable rotating rods (402) which are hinged to each other, and there are four positioning blocks (407). One side of the positioning blocks (407) is connected to the inner wall of the supporting steel pipe (306).

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