A construction scaffold with self-locking function and a method of using the same

Abstract

The present invention relates to the technical field of construction auxiliary equipment, and more specifically, to a self-locking construction scaffold and its use method, comprising a plurality of vertical poles arranged in a matrix, wherein a plurality of groups of linearly distributed circular disc placement portions are welded and fixed to the outer side walls of the vertical pole tubes, and a clamping and locking mechanism is installed on the inner side walls of the fixed disc body, wherein a plurality of the through grooves of the disc body are regularly clamped in the side walls of the fixed disc body. A common crossbar is fixedly connected between two horizontally adjacent groups of the fixed discs, and the crossbar includes a crossbar tube body, and locking portions are welded and fixed at both ends of the crossbar tube body. The present invention is designed with locking portions at both ends of the crossbar, and the locking block can be fixedly installed on the top of the clamping and locking mechanism by simply lifting the crossbar as a whole and pushing the locking block apart from a pair of clamping plates, and then moving the crossbar downward. When disassembling, the crossbar can be removed from the clamping and locking mechanism by simply raising the lifting height of the crossbar. The overall mechanism is simple and has a long service life.

Description

Technical Field

[0001] The present invention relates to the technical field of construction auxiliary equipment, in particular to a construction scaffold with a self-locking function and a use method thereof. Background Art

[0002] Scaffolding is a working platform set up to ensure the smooth progress of each construction process. With the emergence of a large number of modern large-scale building systems in my country, the coupler-type steel pipe scaffolding can no longer meet the needs of the development of construction. It is imperative to vigorously develop and promote the application of new scaffolding.

[0003] The patent with the authorization announcement number CN113863633B discloses a self-locking splicing scaffold, which includes a cross bar and a vertical bar, wherein a first locking mechanism is sleeved on the vertical bar, and a second locking mechanism is arranged on the free end of the cross bar. The first locking mechanism includes a right half connector, a left half connector and a base body, and a locking plate connected to the left half connector body is arranged inside the base body. The second locking mechanism includes a connecting rod group arranged in a four-bar mechanism. The first locking mechanism and the second locking mechanism are coordinated to install and lock the scaffold cross bar and the vertical bar. At the same time, after the first locking mechanism is fixed as a reference, the second locking mechanism will be tightened according to the pressure on the cross bar. The locking degree is self-adjusted. The greater the pressure, the higher the locking degree. It is used in industrial production and has strong practicality. The patent with authorization announcement number CN209228019U discloses a self-locking device for a lifting scaffold. By setting a self-locking mechanism, the rack guide rail and the load-bearing beam can be manually locked to prevent the load-bearing beam from falling. At the same time, the self-locking can also be manually released very conveniently. The meshing braking effect of the arc-shaped teeth and the rack guide rail is good, and it can withstand strong weight and impact, with good safety and stability. By setting a limit block on the lower side of the arc-shaped teeth, the arc-shaped teeth can be supported when the load-bearing beam falls, preventing self-locking failure and improving safety.

[0004] The above technical solutions can all achieve self-locking fixation between the horizontal bars and vertical bars between scaffolds, but they do not take into account that in actual use, scaffolds will often be operated outdoors, and the use cycle of construction scaffolds is very long after they are fixed, during which they will experience various weather conditions such as rainy days. After long-term use, the fine components used in the two scaffolds will rust and oxidize, seriously affecting the overall use of the scaffolds, and thus affecting the safety of the overall scaffolding. In view of this, we propose a construction scaffold with a self-locking function.

[0005] The information disclosed in this background technology section is only intended to enhance understanding of the overall background of the invention and should not be regarded as an admission or any form of suggestion that the information constitutes the prior art already known to a person skilled in the art. Summary of the Invention

[0006] The object of the present invention is to provide a construction scaffold with a self-locking function and a method of using the same, so as to solve the problems raised in the above background technology.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] One of the purposes of the present invention is to provide a self-locking construction scaffold, comprising a plurality of vertical poles arranged in a matrix, each of the vertical poles comprising a plurality of vertical pole tubes connected in sequence, the tops of the vertical pole tubes being provided with a plurality of connecting portions vertically staggered and arranged vertically in an alternating manner for connecting the upper and lower vertical pole tubes via sleeves, and a plurality of linearly distributed disc placement portions being welded and fixed to the outer side walls of the vertical pole tubes;

[0009] A fixed disc is fixedly mounted on the top of one group of the disc placement parts, the fixed disc comprising a fixed disc body, a plurality of disc body through grooves are regularly engaged in the side wall of the fixed disc body, and a clamping and locking mechanism is mounted on the inner groove wall of each of the grooves, the clamping and locking mechanism comprising two oppositely arranged clamping plates;

[0010] Two horizontally adjacent groups of fixed discs are fixedly connected with a same cross bar, and the cross bar comprises a cross bar tube body, and both ends of the cross bar tube body are welded and fixed with locking parts.

[0011] In the technical solution of the present invention, the connecting part includes a connecting tube integrally formed with the vertical pole tube body, a fixing block is integrally formed at the center position of the inner side wall of the connecting tube, connecting springs are welded and fixed on the side walls at both ends of the fixing block, and a connecting block slidably connected to the connecting tube is welded and fixed at one end of the connecting spring away from the fixing block. The sleeve is integrally formed at the bottom of the vertical pole tube body, and a number of connecting holes with the same number and corresponding positions as the connecting blocks are opened on the outer side wall of the sleeve.

[0012] In the technical solution of the present invention, the disc placement portion includes two placement plates that are arranged opposite to each other and welded to the outer side wall of the vertical pole tube body. The transverse cross-section of the placement plate is fan-shaped, and the top surface of the placement plate is provided with a docking groove with a fan-shaped transverse cross-section. The placement plate is provided with a plug-in groove that passes through the top and bottom in the middle of the bottom of the docking groove. A fixed base plate for fixed connection to the foundation is welded to the bottom of the sleeve of the vertical pole tube body located at the bottom.

[0013] In the technical solution of the present invention, the fixed disk body is provided with a plurality of disk body grooves in a ring shape for accommodating the clamping and locking mechanism, and a disk body through hole that passes through the fixed disk body from top to bottom is provided at the center position of the fixed disk body. The fixed disk body is welded and fixed with two symmetrically arranged limit rods at the bottom position of the inner groove wall of the disk body through groove, and the top surface of the limit rod is in contact with the bottom surface of the splint.

[0014] In the technical solution of the present invention, the fixed disk body is welded and fixed with two oppositely arranged docking plates on the inner side wall of the disk body through hole. The size of the docking plates is adapted to the size of the docking grooves. The fan-shaped angle of the docking plates is less than or equal to the fan-shaped angle of the gap between the two horizontal surfaces of the placement plates. The bottom of the docking plate is provided with a plug-in portion for connecting with the plug-in groove.

[0015] In the technical solution of the present invention, the plug-in part includes a plug-in block welded and fixed on the bottom surface of the docking plate, a limiting groove is provided on the outer wall of the plug-in block, a limiting spring is welded and fixed on the inner wall of the limiting groove, and the limiting block is welded and fixed on the end of the limiting spring facing outside the notch of the limiting groove.

[0016] In the technical solution of the present invention, the bottom of the end of the limit block away from the limit spring is arc-shaped, the depth of the limit groove is greater than or equal to the sum of the length of the limit block and the length of the limit spring when compressed to the shortest, and when the limit spring is in a natural state, the limit block extends from the side wall of one end of the limit spring to the outside of the limit groove.

[0017] In the technical solution of the present invention, a plate body through groove is opened near the middle position on the side wall of the opposite end of the two splints, and a connecting shaft is integrally formed at both ends of the side wall of the two splints away from the opposite end. The connecting shaft is rotatably connected to the inner groove wall of the disk body through groove, and the top ends of the side walls of the two splints near the opposite end are welded and fixed with oppositely arranged lap plates with an L-shaped longitudinal cross-section.

[0018] In the technical solution of the present invention, the locking part includes a fixing ring welded and fixed on the outer side walls of the bosses at both ends of the cross bar tube body, an extension rod is integrally formed on the top of the fixing ring, and a locking block for pushing open one of the pair of splints and falling on the top surface of the pair of splints is welded and fixed on the top of the extension rod, and a triangular bracket for pushing open a pair of splints and causing the splints to be obliquely overlapped on the wall of the through groove of the disk body is welded and fixed on two opposite outer sides of the outer side walls of the extension rod below the locking block.

[0019] A second object of the present invention is to provide a method for using a construction scaffold with a self-locking function, wherein the method comprises the following steps:

[0020] S1. First, fix the fixed base plate welded to the bottom of the sleeve in the lowest vertical pole to the foundation with bolts;

[0021] S2. Press the connecting block in the top connecting portion of the vertical pole tube body so that the connecting block squeezes the connecting spring and contracts it, allowing the connecting block to be stored inside the connecting tube. Insert the sleeve at the bottom of the other vertical pole into the top of the vertical pole below, and rotate the vertical pole above so that the connecting block in the connecting portion below can pass through the connecting hole and extend to the outside of the sleeve, completing the connection between the upper and lower vertical poles.

[0022] S3. After completing the quick installation of the upper and lower vertical poles, rotate the fixed disc sleeved on the outer wall of the vertical pole tube body so that the fixed disc can change its relative position with the vertical pole tube body through the disc through-hole opened at the center position. When it moves to the specified position, rotate the fixed disc again so that the docking plate on the fixed disc can be plugged and fixed in the docking groove on the placement plate. During the downward pressing process, the plug-in block docks with the plug-in groove, and the arc-shaped limit block with the bottom is forced to retract into the inside of the limit groove. When the plug-in block is completely fixed in the plug-in groove, the limit block is affected by the elastic action of the limit spring, and the end of the limit block extends to the outside of the limit groove, completing the quick fixation of the fixed disc;

[0023] S4. After completing the fixed installation of multiple sets of vertical poles and fixed discs, align the locking parts at both ends of the crossbar with the fixed positions of the clamping locking mechanism, and lift the crossbar so that the locking block at the top of the extension rod pushes the pair of clamping plates apart. When the horizontal height of the locking block is greater than the pair of clamping plates, press the crossbar downward so that the locking block is fixed above the pair of clamping plates, completing the rapid fixation of the crossbar;

[0024] S5. When disassembling the entire scaffolding, the upper horizontal bar enables the triangular bracket on the extension bar to push open a pair of splints and place them against the wall of the plate groove. After that, the horizontal bar can be directly removed from the clamping and locking mechanism. Finally, squeeze the connecting block on the top of the vertical pole tube that is fixed inside the uppermost sleeve to complete the disassembly of the entire structure. Subsequently, move the pair of splints and reset them.

[0025] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0026] 1. This self-locking construction scaffolding has a connecting portion at the top of the vertical pole tube, allowing operators to complete the vertical fixation between the poles by squeezing the connecting block;

[0027] 2. This self-locking construction scaffolding uses a through-hole in the center of the fixed disc to allow the entire fixed disc to quickly change position on the vertical pole tube. The fixed disc can be quickly fixed inside the disc placement portion through the docking plate and the plug-in portion fixedly installed at the bottom.

[0028] 3. The construction scaffolding with a self-locking function has locking parts at both ends of the crossbar. The locking block can be fixedly installed on the top of the clamping and locking mechanism by simply lifting the crossbar as a whole and pushing the locking block to open a pair of clamping plates, and then moving the crossbar downward. When disassembling, the crossbar can be removed from the clamping and locking mechanism by simply raising the lifting height of the crossbar. The overall mechanism is simple and has a long service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0030] Figure 2 It is an enlarged schematic diagram of part A of the present invention;

[0031] Figure 3 Schematic diagram of the structure of the neutral pole of the present invention;

[0032] Figure 4 It is an enlarged schematic diagram of part B in the present invention;

[0033] Figure 5 It is an enlarged schematic diagram of part C in the present invention;

[0034] Figure 6 It is a structural schematic diagram of the crossbar placement portion in the present invention;

[0035] Figure 7 Schematic diagram of the structure of the plug-in portion of the present invention;

[0036] Figure 8 It is a structural schematic diagram of the clamping and fixing mechanism in the present invention;

[0037] Figure 9 Schematic diagram of the structure of the crossbar in the present invention;

[0038] Figure 10 It is an enlarged schematic diagram of part D in the present invention.

[0039] Description of reference numerals:

[0040] 1. Pole; 10. Pole body; 11. Connecting portion; 110. Connecting tube; 111. Fixing block; 112. Connecting spring; 113. Connecting block; 12. Sleeve; 120. Connecting hole; 13. Disc placement portion; 130. Placement plate; 131. Docking slot; 132. Insertion slot; 14. Fixed base plate;

[0041] 2. Fixed disc; 20. Fixed disc body; 201. Disc body through slot; 202. Disc body through hole; 21. Limit rod; 22. Docking plate; 23. Connecting part; 230. Connecting block; 2301. Limit slot; 231. Limit spring; 232. Limit block;

[0042] 3. Clamping and locking mechanism; 30. Clamping plate; 301. Plate through slot; 31. Connecting shaft; 32. Lap plate;

[0043] 4. Crossbar; 40. Crossbar tube; 41. Locking portion; 410. Fixing ring; 411. Extension rod; 412. Locking block; 413. Triangular bracket. DETAILED DESCRIPTION

[0044] The following will provide a clear and complete description of the technical solutions of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0045] See also Figures 1-10 The present embodiment provides a building scaffold with a self-locking function, comprising a plurality of vertical poles 1 distributed in a matrix, the vertical poles 1 comprising a plurality of vertical pole tubes 10 connected in sequence, the top of the vertical pole tubes 10 being provided with a plurality of connecting portions 11 vertically staggered and used to connect the upper and lower vertical pole tubes 10 through sleeves 12, and a plurality of linearly distributed disc placement portions 13 being welded and fixed on the outer wall of the vertical pole tubes 10.

[0046] In this embodiment, the connecting portion 11 includes a connecting tube 110 integrally formed with the vertical pole tube body 10, a fixing block 111 is integrally formed at the center of the inner side wall of the connecting tube 110, and connecting springs 112 are welded and fixed to the side walls of both ends of the fixing block 111. The end of the connecting spring 112 away from the fixing block 111 is welded and fixed to a connecting block 113 slidably connected to the connecting tube 110. The sleeve 12 is integrally formed at the bottom of the vertical pole tube body 10, and a plurality of connecting holes 120 are opened on the outer side wall of the sleeve 12, the same number and corresponding positions as the connecting blocks 113;

[0047] Furthermore, the disc placement portion 13 includes two placement plates 130 that are arranged opposite to each other and welded to the outer wall of the vertical pole tube body 10. The transverse cross-section of the placement plate 130 is fan-shaped, and the top surface of the placement plate 130 is provided with a docking groove 131 with a fan-shaped transverse cross-section. The placement plate 130 is provided with a plug-in groove 132 that passes through from top to bottom in the middle of the bottom of the docking groove 131. A fixed base plate 14 for fixed connection to the foundation is welded and fixed to the bottom of the sleeve 12 located at the bottom of the vertical pole tube body 10. The vertical pole tube body 10 is used to ensure the stability of the overall structure of the vertical pole 1, the connecting tube 110 is used to ensure the structural strength of the outside of the connecting part 11, the fixing block 111 is used to provide a fixing platform for the connecting spring 112, and the connecting block 113 is used to pass through to the outside of the connecting hole 120 so that the connecting part 11 at the top of the vertical pole tube body 10 can be fixedly connected with the sleeve 12 at the bottom of the upper vertical pole 1, the placement plate 130 is used to ensure the strength of the overall structure of the disc placement part 13, the docking groove 131 is used to dock and fix with the docking plate 22 in the fixed disc 2, the plug-in groove 132 is used to provide a fixing space for the plug-in part 23, and the fixed bottom plate 14 is used to fix the lowest vertical pole 1 on the foundation surface.

[0048] In this embodiment, a fixed disc 2 is fixedly mounted on the top of one of the disc placement portions 13. The fixed disc 2 includes a fixed disc body 20. A plurality of clamping and locking mechanisms 3 are regularly clamped in the side walls of the fixed disc body 20. The clamping and locking mechanisms 3 include two oppositely arranged clamping plates 30.

[0049] Furthermore, the fixed disc 20 is provided with a plurality of annular through-slots 201 for accommodating the clamping and locking mechanisms 3. A through-hole 202 extending vertically through the fixed disc 20 is provided at the center of the fixed disc 20. Two symmetrically positioned limiting rods 21 are welded and fixed to the fixed disc 20 at the bottom of the inner walls of the through-slots 201. The top surfaces of the limiting rods 21 contact the bottom surfaces of the clamping plates 30. The fixed disc 20 ensures the overall strength of the fixed disc 2. The through-slots 201 provide a fixed space for the clamping and locking mechanisms 3. The limiting rods 21 limit the position of the bottom of the clamping plates 30.

[0050] In this embodiment, two opposing docking plates 22 are welded and fixed to the inner wall of the through hole 202 of the fixed plate 20. The size of the docking plates 22 matches the size of the docking slots 131. The fan-shaped angle of the docking plates 22 is less than or equal to the fan-shaped angle of the gap between the horizontal surfaces of the two placement plates 130. The bottom of the docking plates 22 is provided with an inserting portion 23 for engaging with the inserting slots 132.

[0051] Furthermore, the plug-in portion 23 includes a plug-in block 230 welded to the bottom surface of the docking plate 22. A limiting groove 2301 is defined on the outer wall of the plug-in block 230. A limiting spring 231 is welded and fixed to the inner wall of the limiting groove 2301. A limiting block 232 is welded and fixed to the end of the limiting spring 231 facing the outside of the notch of the limiting groove 2301. The bottom of the limiting block 232, which is away from the limiting spring 231, is arc-shaped. The depth of the limiting groove 2301 is greater than or equal to the sum of the length of the limiting block 232 and the length of the limiting spring 231 when compressed to its shortest position. When the limiting spring 231 is in its natural state, the side wall of the limiting block 232, which is away from the limiting spring 231, extends to the outside of the limiting groove 2301. The docking plate 22 is used to provide a fixed platform for the plug-in part 23, and at the same time enables the fixed disc 2 to be fixedly installed on the disc placement part 13. The limiting groove 2301 opened on the outer wall of the plug-in block 230 is used to provide a storage space for the limiting spring 231 and the limiting block 232. The limiting spring 231 and the limiting block 232 are used to ensure the stability of the fixed disc 2 after being placed on the disc placement part 13.

[0052] In this embodiment, a plate body through groove 301 is formed near the middle position on the side wall of the two opposite ends of the two splints 30. A connecting shaft 31 is integrally formed at both ends of the side wall of the opposite end of the two splints 30. The connecting shaft 31 is rotatably connected to the inner groove wall of the plate body through groove 201. Oppositely arranged and having an L-shaped longitudinal cross-section, overlapping plates 32 are welded and fixed at both ends of the top surface of the side wall near the opposite end of the two splints 30.

[0053] Furthermore, the splint 30 is used to limit the locking block 412 in the cross bar 4 and clamp the fixed extension rod 411 at the same time. The plate body groove 301 is used to provide a fixed interval for the extension rod 411. The connecting shaft 31 is used to enable the splint 30 to change the fixed angle in the disk body groove 201. The lap plate 32 is used to further limit the position of the splint 30 and improve the overall fixing strength of the splint 30.

[0054] In this embodiment, two horizontally adjacent groups of fixed discs 2 are fixedly connected by a same crossbar 4, which includes a crossbar tube 40, and locking portions 41 are welded and fixed at both ends of the crossbar tube 40;

[0055] Furthermore, the locking portion 41 includes a fixing ring 410 welded and fixed to the outer side walls of the bosses at both ends of the crossbar tube body 40, and an extension rod 411 is integrally formed on the top of the fixing ring 410. A locking block 412 for pushing open one of the pairs of splints 30 and falling on the top surface of the pair of splints 30 is welded and fixed on the top of the extension rod 411. On two opposite outer sides of the outer side walls of the extension rod 411, a triangular bracket 413 for pushing open a pair of splints 30 and obliquely overlapping the splints 30 on the wall of the disk body groove 201 is welded and fixed below the locking block 412. The cross bar tube body 40 is used to ensure the stability of the overall structure of the cross bar 4, the fixing ring 410 in the locking part 41 is used to provide a fixed base point for the extension rod 411, and the extension rod 411 is used to ensure a sufficient height of the locking block 412. The size of the extension rod 411 is adapted to the internal space size formed by the plate through groove 301 between the two splints 30, and the locking block 412 is used to enable the cross bar 4 to be fixed on the top of the clamping locking mechanism 3. The size of the locking block 412 is larger than the internal space size formed by the plate through groove 301 between the two splints 30, and the triangular bracket 413 is used to make the overall disassembly of the cross bar 4 more convenient. The top of the triangular bracket 413 is arc-shaped and the longitudinal positions of the corners at both ends of the bottom of the triangular bracket 413 are close to the longitudinal position of the connecting shaft 31.

[0056] In addition, this embodiment also provides a method for using a construction scaffold with a self-locking function, which specifically includes the following steps:

[0057] S1. First, fix the fixed base plate 14 welded to the bottom of the sleeve 12 in the lowest vertical pole 1 to the foundation with bolts;

[0058] S2. Press the connecting block 113 in the top connecting portion 11 of the vertical pole tube body 10, so that the connecting block 113 squeezes the connecting spring 112 and contracts it, so that the connecting block 113 can be stored in the interior of the connecting tube 110. Insert the sleeve 12 at the bottom of the other vertical pole 1 into the top of the vertical pole 1 located below, and rotate the vertical pole 1 located above so that the connecting block 113 in the connecting portion 11 located below can pass through the connecting hole 120 and extend to the outside of the sleeve 12, thus completing the docking between the upper and lower vertical poles 1.

[0059] S3. After completing the quick installation of the upper and lower uprights 1, rotate the fixed disc 20 sleeved on the outer wall of the upright tube body 10 so that the fixed disc 20 can change its relative position with the upright tube body 10 through the disc through hole 202 opened at the center position. When it moves to the specified position, rotate the fixed disc 20 again so that the docking plate 22 on the fixed disc 20 can be plugged and fixed in the docking groove 131 on the placement plate 130. During the downward pressing process, the plug-in block 230 docks with the plug-in groove 132, and the arc-shaped limit block 232 with a bottom is forced to retract into the inside of the limit groove 2301. When the plug-in block 230 is completely fixed in the plug-in groove 132, the limit block 232 is affected by the elastic action of the limit spring 231, and the end of the limit block 232 extends to the outside of the limit groove 2301, completing the quick fixation of the fixed disc 2;

[0060] S4. After completing the fixed installation of multiple groups of vertical poles 1 and fixed discs 2, align the locking parts 41 at both ends of the cross bar 4 with the fixed positions of the clamping locking mechanism 3, and lift the cross bar 4 so that the locking block 412 at the top of the extension rod 411 pushes the pair of clamping plates 30 apart. After the horizontal height of the locking block 412 is greater than the pair of clamping plates 30, press down the cross bar 4 so that the locking block 412 is fixed above the pair of clamping plates 30, completing the rapid fixation of the cross bar 4;

[0061] S5. When subsequently disassembling the entire scaffolding, the upper crossbar 4 enables the triangular bracket 413 on the extension rod 411 to push open the pair of splints 30 and lean against the wall of the plate body slot 201. After that, the crossbar 4 can be directly taken out from the clamping and locking mechanism 3. Finally, the connecting block 113 on the top of the vertical pole tube body 10 that is fixed to the inside of the uppermost sleeve 12 is squeezed to complete the disassembly of the entire structure. Subsequently, the pair of splints 30 can be moved and reset.

[0062] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A building scaffold with a self-locking function, comprising a plurality of vertical poles (1) distributed in a matrix, characterized in that: The vertical pole (1) comprises a plurality of vertical pole tube bodies (10) connected in sequence, wherein a plurality of connecting portions (11) are arranged at the top of the vertical pole tube body (10) and are arranged vertically and staggeredly for connecting the upper and lower vertical pole tube bodies (10) via sleeves (12), and a plurality of linearly distributed disc placement portions (13) are welded and fixed on the outer side wall of the vertical pole tube body (10); A fixed disc (2) is fixedly mounted on the top of one group of the disc placement parts (13), the fixed disc (2) comprising a fixed disc body (20), a plurality of clamping and locking mechanisms (3) being regularly clamped in the side wall of the fixed disc body (20), the clamping and locking mechanisms (3) comprising two clamping plates (30) arranged opposite to each other; Two horizontally adjacent groups of fixed discs (2) are fixedly connected to a common crossbar (4), wherein the crossbar (4) comprises a crossbar tube (40), and both ends of the crossbar tube (40) are welded and fixed with locking portions (41); The fixed disc (20) is provided with a plurality of disc through grooves (201) in an annular shape for accommodating the clamping and locking mechanism (3); a plate through groove (301) is provided near the middle position on the side walls of the two opposite ends of the two clamping plates (30); a connecting shaft (31) is integrally formed at both ends of the side walls of the opposite ends of the two clamping plates (30); the connecting shaft (31) is rotatably connected to the inner groove wall of the disc through groove (201); oppositely arranged lap plates (32) with an L-shaped longitudinal cross section are welded and fixed at both ends of the top surfaces of the side walls of the two clamping plates (30) near the opposite ends; The locking portion (41) includes a fixing ring (410) welded and fixed to the outer side walls of the bosses at both ends of the crossbar tube body (40), an extension rod (411) is integrally formed on the top of the fixing ring (410), a locking block (412) for pushing open one of the pair of splints (30) and landing on the top surface of the pair of splints (30) is welded and fixed on the top of the extension rod (411), and a triangular bracket (413) for pushing open the pair of splints (30) and placing the splints (30) obliquely on the groove wall of the disk body groove (201) is welded and fixed on two opposite outer side walls of the outer side wall of the extension rod (411) below the locking block (412).

2. The construction scaffolding with self-locking function according to claim 1, characterized in that: The connecting portion (11) includes a connecting tube (110) integrally formed with the vertical pole tube body (10), a fixing block (111) integrally formed at the center position of the inner side wall of the connecting tube (110), connecting springs (112) are welded and fixed to the side walls at both ends of the fixing block (111), and a connecting block (113) slidably connected to the connecting tube (110) is welded and fixed at one end of the connecting spring (112) away from the fixing block (111), the sleeve (12) is integrally formed at the bottom of the vertical pole tube body (10), and a plurality of connecting holes (120) are opened on the outer side wall of the sleeve (12), the number of which is the same as that of the connecting blocks (113) and the positions of which are corresponding.

3. The construction scaffolding with self-locking function according to claim 2, characterized in that: The disc placement portion (13) includes two placement plates (130) that are arranged opposite to each other and welded to the outer wall of the vertical pole tube body (10), the transverse cross-section of the placement plate (130) is fan-shaped, the top surface of the placement plate (130) is provided with a docking groove (131) with a fan-shaped transverse cross-section, the placement plate (130) is provided with a vertically penetrating plug-in groove (132) in the middle of the bottom of the docking groove (131), and a fixed base plate (14) for fixed connection to the foundation is welded to the bottom of the sleeve (12) of the vertical pole tube body (10) located at the bottom.

4. The construction scaffolding with self-locking function according to claim 3, characterized in that: A through hole (202) extending vertically through the fixed disc (20) is provided at the center of the fixed disc (20). Two symmetrically arranged limiting rods (21) are welded and fixed to the fixed disc (20) at the bottom of the inner groove wall of the disc groove (201). The top surface of the limiting rod (21) contacts the bottom surface of the clamping plate (30).

5. The construction scaffolding with self-locking function according to claim 4, characterized in that: The fixed disc (20) is welded and fixed with two oppositely arranged docking plates (22) on the inner wall of the disc through hole (202). The size of the docking plates (22) is adapted to the size of the docking groove (131). The fan-shaped angle of the docking plates (22) is less than or equal to the fan-shaped angle of the gap between the horizontal planes of the two placement plates (130). The bottom of the docking plate (22) is provided with a plug-in portion (23) for connecting with the plug-in groove (132).

6. The construction scaffolding with self-locking function according to claim 5, characterized in that: The plug-in portion (23) comprises a plug-in block (230) welded and fixed to the bottom surface of the docking plate (22); a limiting groove (2301) is provided on the outer wall of the plug-in block (230); a limiting spring (231) is welded and fixed on the inner groove wall of the limiting groove (2301); and a limiting block (232) is welded and fixed to one end of the limiting spring (231) facing outside the groove opening of the limiting groove (2301).

7. The construction scaffolding with self-locking function according to claim 6, characterized in that: The bottom of one end of the limiting block (232) away from the limiting spring (231) is arc-shaped, the depth of the limiting groove (2301) is greater than or equal to the sum of the length of the limiting block (232) and the length of the limiting spring (231) when compressed to the shortest, and when the limiting spring (231) is in a natural state, the side wall of one end of the limiting block (232) away from the limiting spring (231) extends to the outside of the limiting groove (2301).

8. A method for using a construction scaffold with a self-locking function, wherein the method comprises: The specific steps include: S1. First, the fixed base plate (14) welded to the bottom of the sleeve (12) in the lowest vertical pole (1) is fixed to the foundation by bolts; S2. Press the connecting block (113) in the top connecting portion (11) of the vertical pole tube body (10) so that the connecting block (113) squeezes the connecting spring (112) and contracts it under force, so that the connecting block (113) can be stored inside the connecting tube (110), insert the sleeve (12) at the bottom of the other vertical pole (1) into the top of the vertical pole (1) located below, and rotate the vertical pole (1) located above so that the connecting block (113) in the connecting portion (11) located below can pass through the connecting hole (120) and extend to the outside of the sleeve (12), thereby completing the docking between the upper and lower vertical poles (1); S3. After the quick installation of the upper and lower vertical poles (1) is completed, the fixed disc (20) sleeved on the outer wall of the vertical pole tube (10) is rotated so that the fixed disc (20) can change its relative position with the vertical pole tube (10) through the disc through hole (202) opened at the center position. When it moves to the designated position, the fixed disc (20) is rotated again so that the docking plate (22) on the fixed disc (20) can be plugged into the docking plate (22) fixed on the placement plate (130). In the slot (131), during the process of pressing downward, the plug-in block (230) docks with the plug-in slot (132), and the arc-shaped limit block (232) is forced to retract into the inside of the limit slot (2301). When the plug-in block (230) is completely fixed in the inside of the plug-in slot (132), the limit block (232) is affected by the elastic action of the limit spring (231), and the end of the limit block (232) extends to the outside of the limit slot (2301), completing the rapid fixation of the fixed disc (2); S4. After the fixed installation of the plurality of vertical rods (1) and the fixed disc (2) is completed, the locking portions (41) at both ends of the cross bar (4) are aligned with the fixed positions of the clamping locking mechanism (3), and the cross bar (4) is lifted up so that the locking block (412) at the top of the extension rod (411) pushes the pair of clamps (30) apart. After the horizontal height of the locking block (412) is greater than the pair of clamps (30), the cross bar (4) is pressed down so that the locking block (412) is fixed above the pair of clamps (30), thereby completing the rapid fixation of the cross bar (4); S5. When the overall scaffold is subsequently disassembled, the upper crossbar (4) enables the triangular bracket (413) on the extension rod (411) to push the pair of splints (30) open and lean against the wall of the plate body through groove (201). After that, the crossbar (4) can be directly taken out from the clamping and locking mechanism (3). Finally, the connecting block (113) on the top of the vertical rod tube (10) that is fixed inside the uppermost sleeve (12) is squeezed to complete the disassembly of the overall structure. Subsequently, the pair of splints (30) can be moved and reset.

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