CN111734116A

CN111734116A - Cantilever beam fixing structure for scaffold lapping and using method thereof

Info

Publication number: CN111734116A
Application number: CN202010626777.4A
Authority: CN
Inventors: 何蓓蕾; 戚俊; 林煜铤; 李万厚; 谢力; 冯钦
Original assignee: Wenzhou Pinli Intelligent Curtain Wall Doors And Windows Co Ltd
Current assignee: Wenzhou Pinli Intelligent Curtain Wall Doors And Windows Co Ltd
Priority date: 2020-07-02
Filing date: 2020-07-02
Publication date: 2020-10-02

Abstract

The invention relates to the field of building construction tools, in particular to a cantilever beam fixing structure for scaffold lapping and a use method thereof. This kind of cantilever beam fixed knot that scaffold frame overlap joint was used constructs and application method thereof, realizes fixing in the vertical direction when fixed cantilever beam horizontal direction, easy operation is convenient, labour saving and time saving need not to carry out the destructive processing to the cantilever beam moreover, ensures cantilever beam's intensity, improves life, further carries out compressing tightly of vertical direction to the cantilever beam through supporting mechanism and vertical hold-down mechanism to improve cantilever beam's joint strength and support intensity.

Description

Cantilever beam fixing structure for scaffold lapping and using method thereof

Technical Field

The invention relates to the field of building construction tools, in particular to a cantilever beam fixing structure for scaffold lapping and a using method thereof.

Background

The scaffold platform that the workman that supplies the construction stood can be built usually in the construction process of building, also is convenient for pile up construction material temporarily. For the convenience of walking or moving of workers between adjacent scaffolds, a cantilever beam is usually arranged at the position of a side edge adjacent to the scaffold and used as a temporary springboard, for the convenience of later-stage disassembly between the existing cantilever beam and the scaffold, the existing cantilever beam and the scaffold are generally connected in a detachable connection mode, and the cantilever beam needs to be fixedly connected in the horizontal direction and the vertical direction of the cantilever beam respectively, so that a plurality of connecting pieces such as buckles, bolts, stirrups and the like are needed.

Disclosure of Invention

The invention aims to provide a cantilever beam fixing structure for scaffold lapping and a using method thereof, so as to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

the utility model provides a cantilever beam fixed knot that scaffold frame overlap joint was used constructs, includes the scaffold frame body, is provided with the side direction fixture fixed to the cantilever beam horizontal direction on the scaffold frame body, is provided with the vertical hold-down mechanism fixed to the vertical direction of cantilever beam on the side direction fixture, and side direction fixture is connected with vertical hold-down mechanism transmission, and the bottom of scaffold frame body is provided with supporting mechanism, and supporting mechanism can be connected with vertical hold-down mechanism transmission.

Preferably, side direction fixture is including fixing the centre gripping box in scaffold frame body bottom, and the cross section of centre gripping box is the ascending "]" shape of opening, and the middle part of centre gripping box is provided with the lead screw, and the vertical direction setting of lead screw, and the upper end dead axle of lead screw rotates the bottom surface of connecting at scaffold frame body, and the diapire of centre gripping box is passed to the lower extreme of lead screw to the lead screw can be dead axle on the diapire of centre gripping box and rotate, and the lower extreme that is located the centre gripping box outside of lead screw is fixed with the carousel.

Preferably, the screw sleeve is sleeved on the screw rod, the screw sleeve is in threaded connection with the screw rod, a first support is fixed on the inner side wall of the clamping box, a first pin rod is fixed at the end of the first support, the first pin rod is inserted into a third strip-shaped groove and can slide in the third strip-shaped groove, a third strip-shaped groove is formed in the middle of a second connecting rod, the trend of the third strip-shaped groove is consistent with the length direction of the second connecting rod, and the lower end of the second connecting rod is hinged to the outer side wall of the screw sleeve through the first connecting rod.

Preferably, both ends that the upper surface of scaffold frame body is close to centre gripping box open end are provided with kicking block and dog respectively, and the kicking block is located the one end department of the scaffold frame body that two connecting rods correspond, and the last fixed surface of scaffold frame body has the slider, and the spout has been seted up to the bottom surface of kicking block, and slider sliding connection is in the spout, and the opening of seting up on the scaffold frame body is passed to the upper end of two connecting rods and is connected with the kicking block dead axle rotation, and the dog is fixed at scaffold frame body upper.

Preferably, vertical hold-down mechanism includes the depression bar, and depression bar and two both sides that are located the lead screw of connecting rod respectively, and the depression bar is approximate to the L form, and the middle part dead axle of depression bar rotates to be connected on support two, and support two is fixed in the lateral wall upper end of centre gripping box, and the horizontal segment tip dead axle of depression bar rotates to be connected with the clamp plate, and bar groove four has been seted up to the vertical section lower extreme of depression bar, and the trend of bar groove four is parallel with the vertical section of depression bar.

Preferably, it has connecting rod three to articulate on the lateral wall of swivel nut, connecting rod three is kept away from the one end dead axle of swivel nut and is rotated and be connected with connecting rod four, connecting rod four sliding connection is in the uide bushing four, uide bushing four is fixed on the lateral wall of centre gripping box, connecting rod four and lead screw mutually perpendicular, connecting rod four is kept away from the one end of connecting rod three and is passed the lateral wall of centre gripping box and be located the outside of centre gripping box, connecting rod four can slide on the lateral wall of centre gripping box, the connecting rod four is located the outside one end of centre gripping box and is fixed with pin rod two, pin rod two is pegged graft in bar groove four, and pin rod two can slide in.

Preferably, the support mechanism comprises an extension plate fixed on the scaffold body, the extension plate is arranged in the vertical direction, a gear is rotatably connected to the extension plate through a fixed shaft, a first rack and a second rack are respectively arranged on two sides of the gear, the first rack and the second rack are arranged in the vertical direction, the gear is respectively meshed with the first rack and the second rack, the first rack is slidably connected into a first guide sleeve, the first guide sleeve is fixed on the extension plate, the lower end of the first rack is connected with the lower end of the extension plate through a spring, the second rack is slidably connected into a second guide sleeve, and the second guide sleeve is fixed on the extension plate.

Preferably, the bottom dead axle of scaffold body rotates the middle part of connecting the stick up pole, sticks up the both ends of pole and has seted up bar groove one and bar groove two respectively, and the inside sliding connection in bar groove one has pin rod three, and pin rod three fixes the lower extreme at rack two, and the inside sliding connection in bar groove two has pin rod four, and pin rod four fixes the lower extreme at the pull rod.

Preferably, the pull rod is arranged in the vertical direction and is slidably connected into a third guide sleeve, the third guide sleeve is fixed on the outer side wall of the clamping box, a through hole is formed in the pressing plate, a screw rod is fixed at the upper end of the pull rod and can be inserted into the through hole, and a base plate and a nut are sleeved on the screw rod and are closely connected with the screw rod through threads.

In addition, the application also provides a using method of the cantilever beam fixing structure for scaffold lapping, which comprises the following steps:

the method comprises the following steps: the cantilever beam is fixed in the horizontal direction through the lateral clamping mechanism, and meanwhile the lateral clamping mechanism drives the longitudinal pressing mechanism to press and fix the cantilever beam in the vertical direction;

step two: the supporting mechanism is connected with the longitudinal pressing mechanism, the supporting mechanism plays a role in reinforcing and supporting the cantilever beam, and the supporting mechanism can drive the longitudinal pressing mechanism to further press the cantilever beam in the vertical direction;

step three: the cantilever beam is loosened by loosening the supporting mechanism and the longitudinal pressing mechanism and synchronously driving the longitudinal pressing mechanism through the lateral clamping mechanism.

Compared with the prior art, the invention has the beneficial effects that:

in the invention, the cantilever beam is fixed in the horizontal direction by the lateral clamping mechanism, and the lateral clamping mechanism drives the longitudinal pressing mechanism to vertically press and fix the cantilever beam, so the operation is simple, convenient and fast, time and labor are saved, and the cantilever beam is not required to be subjected to destructive processing, the strength of the cantilever beam is ensured, the service life is prolonged, the support mechanism is connected with the longitudinal pressing mechanism, the support mechanism plays a role in reinforcing and supporting the cantilever beam, and the support mechanism can drive the longitudinal pressing mechanism to further press the cantilever beam in the vertical direction, on one hand, the cantilever beam is more firmly fixed on a scaffold body in the vertical direction, on the other hand, the left side of the cantilever beam is prevented from moving downwards to generate deformation, so the connection strength and the support strength of the cantilever beam are improved, the support mechanism and the longitudinal pressing mechanism are loosened, and the longitudinal pressing mechanism is synchronously driven by the lateral clamping mechanism to loosen the cantilever beam, thereby realize dismantling cantilever beam's quick, easy operation is convenient, labour saving and time saving.

Drawings

FIG. 1 is a schematic view of the final assembly of the present invention;

FIG. 2 is a schematic view of the cross-sectional structure A-A of FIG. 1;

FIG. 3 is a schematic cross-sectional view of the initial body of the present invention;

fig. 4 is an enlarged schematic view of a portion B in fig. 1.

In the figure: 1. a scaffold body; 2. an extension plate; 3. a first guide sleeve; 4. a first rack; 5. a spring; 6. a gear; 7. a second guide sleeve; 8. a second rack; 9. raising the rod; 10. a lateral clamping mechanism; 11. a first strip-shaped groove; 12. a strip-shaped groove II; 13. a third guide sleeve; 14. a pull rod; 15. a pressure lever; 16. pressing a plate; 17. a clamping box; 18. a lead screw; 19. a turntable; 20. a threaded sleeve; 21. a first connecting rod; 22. a first bracket; 23. a second connecting rod; 24. a strip-shaped groove III; 25. a port; 26. a top block; 27. a chute; 28. a slider; 29. a third connecting rod; 30. a stopper; 31. a fourth guide sleeve; 32. a connecting rod IV; 33. a strip groove IV; 34. a second bracket; 35. a through hole; 36. a screw; 37. a base plate; 38. and a nut.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

Referring to fig. 1 to 4, the present invention provides a technical solution:

the utility model provides a cantilever beam fixed knot that scaffold frame overlap joint was used constructs, includes scaffold frame body 1, is provided with on scaffold frame body 1 to the fixed side direction fixture 10 of cantilever beam horizontal direction, is provided with the vertical hold-down mechanism fixed to the vertical direction of cantilever beam on the side direction fixture 10, and side direction fixture 10 is connected with vertical hold-down mechanism transmission, and scaffold frame body 1's bottom is provided with supporting mechanism, and supporting mechanism can be connected with vertical hold-down mechanism transmission.

In this embodiment, as shown in fig. 2 and fig. 3, the lateral clamping mechanism 10 includes a clamping box 17 fixed at the bottom of the scaffold body 1, the cross section of the clamping box 17 is in a shape of "]" with an upward opening, a lead screw 18 is disposed in the middle of the clamping box 17, the lead screw 18 is disposed in a vertical direction, the upper end of the lead screw 18 is fixedly connected to the bottom surface of the scaffold body 1, the lower end of the lead screw 18 passes through the bottom wall of the clamping box 17, the lead screw 18 can be fixedly connected to the bottom wall of the clamping box 17, and a rotary table 19 is fixed at the lower end of the lead screw 18, which is located outside the clamping.

In this embodiment, as shown in fig. 2 and 3, a screw sleeve 20 is sleeved on the screw rod 18, the screw sleeve 20 is in threaded connection with the screw rod 18, a first support 22 is fixed on the inner side wall of the clamping box 17, a first pin rod is fixed at the end of the first support 22 and is inserted into a third strip-shaped groove 24, the first pin rod can slide in the third strip-shaped groove 24, the third strip-shaped groove 24 is arranged in the middle of a second connecting rod 23, the trend of the third strip-shaped groove 24 is consistent with the length direction of the second connecting rod 23, and the lower end of the second connecting rod 23 is hinged to the outer side wall of the screw sleeve 20 through the first connecting rod 21.

In this embodiment, as shown in fig. 2 and fig. 3, two ends of the upper surface of the scaffold body 1, which are close to the open end of the clamping box 17, are respectively provided with a top block 26 and a stop block 30, the top block 26 is located at one end of the scaffold body 1 corresponding to the second connecting rod 23, the upper surface of the scaffold body 1 is fixed with a sliding block 28, a sliding groove 27 is formed in the bottom surface of the top block 26, the sliding block 28 is slidably connected in the sliding groove 27, the upper end of the second connecting rod 23 passes through the through hole 25 formed in the scaffold body 1 and is connected with the top block 26 in a fixed-axis rotating manner, and the stop block.

In this embodiment, as shown in fig. 1, fig. 2, and fig. 3, the longitudinal pressing mechanism includes a pressing rod 15, the pressing rod 15 and a second connecting rod 23 are respectively located on two sides of the screw rod 18, the pressing rod 15 is approximately L-shaped, a middle fixed shaft of the pressing rod 15 is rotatably connected to the second support 34, the second support 34 is fixed at the upper end of the outer side wall of the clamping box 17, a horizontal section end fixed shaft of the pressing rod 15 is rotatably connected to the pressing plate 16, a strip-shaped groove four 33 is formed at the lower end of a vertical section of the pressing rod 15, and the trend of the strip-shaped groove four 33.

In this embodiment, as shown in fig. 2 and fig. 3, a third connecting rod 29 is hinged to the outer side wall of the screw sleeve 20, a fourth connecting rod 32 is connected to one end, far away from the screw sleeve 20, of the third connecting rod 29 in a fixed-axis rotating manner, the fourth connecting rod 32 is connected in a sliding manner in a fourth guide sleeve 31, the fourth guide sleeve 31 is fixed to the side wall of the clamping box 17, the fourth connecting rod 32 is perpendicular to the screw 18, one end, far away from the third connecting rod 29, of the fourth connecting rod 32 penetrates through the side wall of the clamping box 17 and is located outside the clamping box 17, the fourth connecting rod 32 can slide on the side wall of the clamping box 17, a second pin rod is fixed to one end, located outside the clamping box 17, of the fourth connecting rod 32 and is inserted into a fourth strip.

In this embodiment, as shown in fig. 1, the supporting mechanism includes an extension board 2 fixed on the scaffold body 1, the extension board 2 is vertically disposed, a gear 6 is rotatably connected to the extension board 2 in a fixed axis manner, a first rack 4 and a second rack 8 are respectively disposed on two sides of the gear 6, both the first rack 4 and the second rack 8 are vertically disposed, the gear 6 is respectively engaged with the first rack 4 and the second rack 8, the first rack 4 is slidably connected to a first guide sleeve 3, the first guide sleeve 3 is fixed on the extension board 2, a lower end of the first rack 4 is connected to a lower end of the extension board 2 through a spring 5, the second rack 8 is slidably connected to a second guide sleeve 7, and the second guide sleeve 7 is fixed on the extension board 2.

In this embodiment, as shown in fig. 1, the bottom dead axle of scaffold body 1 rotates the middle part of connecting stick up pole 9, and bar groove 11 and bar groove two 12 have been seted up respectively to stick up the both ends of pole 9, and the inside sliding connection in bar groove 11 has pin rod three, and pin rod three fixes the lower extreme at rack two 8, and the inside sliding connection in bar groove two 12 has pin rod four, and pin rod four fixes the lower extreme at pull rod 14.

In this embodiment, as shown in fig. 1, the pull rod 14 is vertically disposed and slidably connected in the third guide sleeve 13, the third guide sleeve 13 is fixed on the outer side wall of the clamping box 17, the pressing plate 16 is provided with a through hole 35, the upper end of the pull rod 14 is fixed with a screw 36, the screw 36 can be inserted into the through hole 35, and the screw 36 can be sleeved with a backing plate 37 and a nut 38, and the nut 38 is closely connected with the screw 36 through a thread.

the method comprises the following steps: as shown in fig. 3, in the initial state, the threaded sleeve 20 is located on the upper portion of the threaded shaft 18, the top block 26 and the stop block 30 are far away from each other, the pressure plate 16 is far away from the scaffold body 1, and the threaded rod 36 is not inserted into the through hole 35 on the pressure plate 16;

when the cantilever beam is installed, as shown in fig. 1, 2 and 3, one end of the cantilever beam is inserted between the top block 26 and the stop block 30, the pressing plate 16 is located on the upper side of the cantilever beam, then the rotary disc 19 is rotated by hands, the lead screw 18 is driven to rotate by the rotary disc 19, the screw sleeve 20 is driven to move downwards by the rotation of the lead screw 18 through screw transmission, the screw sleeve 20 synchronously drives the first connecting rod 21 to move downwards, so that the first connecting rod 21 applies thrust to the lower end of the second connecting rod 23, the thrust enables the second connecting rod 23 to rotate clockwise in fig. 3 around the third pin rod at the end of the first bracket 22, and the clockwise rotation of the second connecting rod 23 drives the top block 26 to move rightwards in fig. 2 and 3 through the upper end of the second connecting rod, namely, the top block 26 is close to the stop block 30, and the top block 26 and the stop block 30 are further used for extruding and fixing the cantilever beam in the horizontal direction, so as;

as shown in fig. 2 and 3, the screw sleeve 20 moves downwards and simultaneously drives the third connecting rod 29 to move downwards, so that the third connecting rod 29 applies a rightward thrust to the fourth connecting rod 32, the thrust causes the fourth connecting rod 32 to move rightwards along the fourth guide sleeve 31, the rightward thrust is applied to the lower end of the vertical section of the press rod 15 by the rightward movement of the fourth connecting rod 32, so that the press rod 15 rotates anticlockwise around a pin shaft at the joint of the press rod and the second support 34, the left end of the horizontal section of the press rod 15 drives the press plate 16 to press and fix the cantilever beam in the vertical direction, the cantilever beam is prevented from jumping in the vertical direction, and the screw 18 is rotated through the turntable 19, so that the cantilever beam is fixed in the vertical direction while being fixed in the horizontal direction, the operation is simple and convenient, the time and labor are saved, and the damage processing on the cantilever beam is not needed, the strength of the cantilever beam is ensured, and;

step two: as shown in the first step, after the cantilever beam is installed, as shown in fig. 4, when the pressing plate 16 moves downward, the screw 36 is inserted into the through hole 35, the backing plate 37 is sleeved on the screw 36, then the nut 38 is screwed on the screw 36, and the nut 38 is rotated to press the backing plate 37 against the pressing plate 16, as shown in fig. 1, the rack one 4 is located at the bottom of the cantilever beam, and the upper end of the rack one 4 is in abutting contact with the bottom surface of the cantilever beam, when the left side of the cantilever beam is stressed to deform flexibly downward, downward pressure is applied to the rack one 4, so that the rack one 4 moves downward in the guide sleeve one 3, the rack one 4 compresses the spring 5 to obtain a restoring force, the downward movement of the rack one 4 drives the gear 6 to rotate counterclockwise through the tooth transmission action between the rack one 4 and the gear 6, so that the gear 6 drives the rack two 8 to move upward in the guide sleeve two 7 through the tooth transmission action between the rack one 4 and the gear two 8, the upward movement of the second rack 8 applies upward pulling force to the left end of the raising rod 9, so that the raising rod 9 rotates clockwise around a connection point of the raising rod 9 and the scaffold body 1, the right end of the raising rod 9 moves downwards, the right end of the raising rod 9 applies downward pulling force through the four pairs of pin rods 14, the pulling rod 14 moves downwards, the downward movement of the pulling rod 14 applies downward pulling force to the pressing plate 16 through the backing plate 37, the pressing plate 16 further moves downwards to press down the right end of the cantilever beam, on one hand, the cantilever beam is firmly fixed on the scaffold body 1 in the vertical direction, on the other hand, according to the lever principle, the downward movement of the pressing plate 16 enables the left side of the cantilever beam to move upwards, the left side of the cantilever beam is prevented from moving downwards to deform, and the connection strength and the support strength of the cantilever beam are improved;

step three: when the cantilever beam is dismounted, firstly, the nut 38 is screwed down from the screw rod 36, the backing plate 37 is removed, then the rotary disc 19 is reversely rotated by the hand, the screw rod 18 is reversely rotated by the rotary disc 19, the threaded sleeve 20 is driven to move upwards by the reverse rotation of the screw rod 18 through thread transmission, the connecting rod 21 is synchronously driven to move upwards by the mulberry movement of the threaded sleeve 20, so that the connecting rod 21 applies a pulling force to the lower end of the connecting rod two 23, the pulling force enables the connecting rod two 23 to rotate anticlockwise around the pin rod three at the end of the bracket one 22 in fig. 3, the anticlockwise rotation of the connecting rod two 23 drives the jacking block 26 to move leftwards in fig. 2 and fig. 3 through the upper end thereof, namely, the jacking block 26 is far away from the stop block 30, and the jacking block 26 and the stop block 30 are loosened on the cantilever beam in the horizontal direction, as shown in fig. 2 and fig. 3, the connecting rod three 29 is synchronously driven to move upwards while the threaded sleeve 20 moves upwards, so, this pulling force makes four 32 of connecting rod move to the left along four 31 left sides of uide bushing, and the pulling force to the left is applyed to the vertical section lower extreme of depression bar 15 to the left that moves of four 32 of connecting rod to make depression bar 15 rotate clockwise around its round pin axle with two 34 junctions of support, thereby make the horizontal segment left end of depression bar 15 drive pressure plate 16 loosen the cantilever beam in vertical direction, thereby realize the quick dismantlement to the cantilever beam, easy operation is convenient, labour saving and time saving.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a cantilever beam fixed knot that scaffold frame overlap joint was used constructs, includes scaffold frame body (1), its characterized in that: the scaffold is characterized in that a lateral clamping mechanism (10) for fixing the horizontal direction of the cantilever beam is arranged on the scaffold body (1), a longitudinal pressing mechanism for fixing the vertical direction of the cantilever beam is arranged on the lateral clamping mechanism (10), the lateral clamping mechanism (10) is in transmission connection with the longitudinal pressing mechanism, a supporting mechanism is arranged at the bottom of the scaffold body (1), and the supporting mechanism is in transmission connection with the longitudinal pressing mechanism.

2. The cantilever beam fixing structure for scaffold lapping according to claim 1, wherein: lateral clamping mechanism (10) is including fixing centre gripping box (17) in scaffold frame body (1) bottom, and the cross section of centre gripping box (17) is the ascending "]" shape of opening, the middle part of centre gripping box (17) is provided with lead screw (18), the vertical direction setting of lead screw (18), and the upper end dead axle of lead screw (18) rotates the bottom surface of connecting in scaffold frame body (1), the diapire of centre gripping box (17) is passed to the lower extreme of lead screw (18) to lead screw (18) can be dead axle on the diapire of centre gripping box (17) and rotate, the lower extreme that is located in centre gripping box (17) outside of lead screw (18) is fixed with carousel (19).

3. The cantilever beam fixing structure for scaffold lapping according to claim 2, wherein: the clamping device is characterized in that a threaded sleeve (20) is sleeved on the lead screw (18), the threaded sleeve (20) is in threaded connection with the lead screw (18), a first support (22) is fixed on the inner side wall of the clamping box (17), a first pin rod is fixed at the end of the first support (22) and is inserted into a third strip-shaped groove (24), the first pin rod can slide in the third strip-shaped groove (24), the third strip-shaped groove (24) is arranged in the middle of a second connecting rod (23), the trend of the third strip-shaped groove (24) is consistent with the length direction of the second connecting rod (23), and the lower end of the second connecting rod (23) is hinged to the outer side wall of the threaded sleeve (20) through the first connecting rod (21).

4. The cantilever beam fixing structure for scaffold lapping according to claim 3, wherein: the both ends that the upper surface of scaffold frame body (1) is close to centre gripping box (17) open end are provided with kicking block (26) and dog (30) respectively, kicking block (26) are located the one end department of scaffold frame body (1) that connecting rod two (23) correspond, the upper surface of scaffold frame body (1) is fixed with slider (28), spout (27) have been seted up to the bottom surface of kicking block (26), slider (28) sliding connection is in spout (27), the upper end of connecting rod two (23) is passed opening (25) of seting up on scaffold frame body (1) and is connected with kicking block (26) dead axle rotation, dog (30) are fixed at scaffold frame body (1) upper surface.

5. The cantilever beam fixing structure for scaffold lapping according to claim 3, wherein: the longitudinal pressing mechanism comprises a pressing rod (15), the pressing rod (15) and a second connecting rod (23) are respectively positioned on two sides of a lead screw (18), the pressing rod (15) is approximately L-shaped, a middle fixed shaft of the pressing rod (15) is rotatably connected to a second support (34), the second support (34) is fixed to the upper end of the outer side wall of the clamping box (17), a pressing plate (16) is rotatably connected to the fixed shaft of the end part of a horizontal section of the pressing rod (15), a strip-shaped groove four (33) is formed in the lower end of a vertical section of the pressing rod (15), and the trend of the strip-shaped groove four (33) is parallel to the vertical section of the pressing rod (15); articulated on the lateral wall of swivel nut (20) have connecting rod three (29), the one end dead axle that swivel nut (20) was kept away from in connecting rod three (29) rotates and is connected with connecting rod four (32), connecting rod four (32) sliding connection is in uide bushing four (31), uide bushing four (31) are fixed on the lateral wall of centre gripping box (17), connecting rod four (32) and lead screw (18) mutually perpendicular, the lateral wall that centre gripping box (17) was passed to the one end that connecting rod three (29) was kept away from in connecting rod four (32) and is located the outside of centre gripping box (17), connecting rod four (32) can slide on the lateral wall of centre gripping box (17), connecting rod four (32) are located the outside one end of centre gripping box (17) and are fixed with pin bar two, pin bar two are pegged graft in bar groove four (33), and pin bar two can slide in bar groove four (33).

6. The cantilever beam fixing structure for scaffold lapping according to claim 5, wherein: the supporting mechanism is including fixing extension board (2) on scaffold frame body (1), the vertical direction setting of extension board (2), dead axle rotation is connected with gear (6) on extension board (2), the both sides of gear (6) are provided with rack (4) and rack two (8) respectively, the equal vertical direction setting of rack (4) and rack two (8), and gear (6) are connected with rack (4), rack two (8) meshing respectively, rack (4) sliding connection is in uide bushing (3), uide bushing (3) are fixed on extension board (2).

7. The cantilever beam fixing structure for scaffold lapping according to claim 5, wherein: the lower end of the first rack (4) is connected with the lower end of the extension plate (2) through a spring (5), the second rack (8) is connected in the second guide sleeve (7) in a sliding mode, and the second guide sleeve (7) is fixed on the extension plate (2).

8. The cantilever beam fixing structure for scaffold lapping according to claim 7, wherein: the middle part of perk pole (9) is connected in the rotation of the bottom dead axle of scaffold body (1), bar groove one (11) and bar groove two (12) have been seted up respectively to the both ends of perk pole (9), the inside sliding connection of bar groove one (11) has pin rod three, and pin rod three fixes the lower extreme at rack two (8), the inside sliding connection of bar groove two (12) has pin rod four, and pin rod four fixes the lower extreme at pull rod (14).

9. The cantilever beam fixing structure for scaffold lapping according to claim 8, wherein: the vertical direction of pull rod (14) sets up to sliding connection is in uide bushing three (13), uide bushing three (13) are fixed on the lateral wall of centre gripping box (17), through-hole (35) have been seted up on clamp plate (16), the upper end of pull rod (14) is fixed with screw rod (36), and screw rod (36) can be passed and inserted in through-hole (35), nut (38) and screw rod (36) close threaded connection can be cup jointed to backing plate (37) and nut (38) on screw rod (36).

10. The use method of the cantilever beam fixing structure for scaffold lapping according to any one of claims 1 to 9, wherein: the method comprises the following steps:

the method comprises the following steps: the cantilever beam is fixed in the horizontal direction through the lateral clamping mechanism (10), and meanwhile the longitudinal pressing mechanism is driven by the lateral clamping mechanism (10) to press and fix the cantilever beam in the vertical direction;

step three: the cantilever beam is loosened by loosening the supporting mechanism and the longitudinal pressing mechanism and synchronously driving the longitudinal pressing mechanism through the lateral clamping mechanism (10).