Safety scaffold for building construction

Abstract

The utility model relates to the technical field of building construction equipment, in particular to a safety scaffold for building construction, which comprises four upright posts and a construction platform bolted at the tops of the upright posts, and further comprises a guardrail bolted at the top of the construction platform, universal wheels are mounted at the bottom ends of the upright posts, and mounting boxes are arranged below the surfaces of the four upright posts; through cooperation of the servo motor, the lifting mechanism and the extending plate, the sliding plate slides in the sliding way shell in a lifting mode, so that workers or materials can be lifted to a construction platform for construction or can be lowered to the ground from the construction platform through the bearing table, the construction efficiency can be improved, potential safety hazards can be reduced, and the construction efficiency is improved. And meanwhile, through cooperation of the power mechanism and the supporting mechanism, the effect of expansion supporting can be achieved on the outer side of the stand column, the situation that the scaffold possibly shakes and inclines under the influence of external force is relieved, and therefore the stability of the scaffold and the safety of constructors can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction equipment, in particular to a safety construction frame for building construction. Background Art

[0002] The safety construction frame is a support platform used to provide workers with a safe working platform during the construction process, providing a safe and reliable working space for workers and materials. It is widely used in high-altitude construction such as roofs and exterior walls of various buildings.

[0003] In order to enable workers to smoothly climb onto the construction scaffolding to carry out construction work, some construction scaffoldings currently have built-in stair structures to facilitate workers to climb up and down. However, if workers need to carry large materials to climb onto the construction scaffolding through the stairs, the movements of going up and down the stairs will be relatively restricted, which will not only lead to low construction efficiency, but also easily lead to loss of balance and cause safety hazards. At the same time, some existing construction scaffoldings have universal wheels at the bottom, which can be easily moved within the construction site. However, after the construction scaffolding is moved, the stability of limiting and fixing the construction scaffolding by relying solely on the limiting function of the universal wheels is relatively poor. When the workers are working or after other unexpected external force collisions, the construction scaffolding is prone to shaking, tilting or even falling down, resulting in injuries to the workers and threatening the safety of the entire construction site. Utility Model Content

[0004] The purpose of the utility model is to provide a safe construction frame for building construction to solve the problems raised in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical solution: a safety construction frame for building construction, comprising four columns and a construction platform bolted to the top of the columns, and also comprising:

[0006] A guardrail bolted to the top of the construction platform, a universal wheel is installed at the bottom of the column, a mounting box is arranged below the surface of the four columns, and a supporting mechanism is arranged on the surface of the four columns;

[0007] A power mechanism is arranged between the installation boxes, one side of the construction platform is bolted with a slideway shell, the number of the slideway shells is two and they are symmetrically distributed, the inner walls of the slideway shells on both sides are slidably connected with sliding plates, the cross-sectional shape of the sliding plates is rectangular, and the shape of the inner wall of the slideway shell and the shape of the sliding plate are adapted to each other;

[0008] A support platform is bolted to one side of the sliding plate, an extension plate is bolted to the other side of the sliding plate, a servo motor is bolted to the bottom of the construction platform, a lifting mechanism is provided on one side of the bottom of the construction platform, and handrails are bolted to both sides of the top of the support platform

[0009] Preferably, the supporting mechanism includes an externally threaded sleeve rotatably connected to the surface of the column and a sliding block threadedly connected to the surface of the externally threaded sleeve, the bottom end of the externally threaded sleeve penetrates into the inner cavity of the installation box and is rotatably connected to the penetration point, the surface of the sliding block is hinged with a supporting shell, the top of the installation box is bolted with a base, the top of the base is hinged with a support rod, the support rod is slidably connected to the inner wall of the supporting shell, one end of the supporting shell is fixedly connected to a limiting rod, sliding grooves are provided on both sides of the surface of the supporting shell, and the limiting rod is slidably connected to the inner wall of the sliding groove.

[0010] Preferably, the power mechanism includes a connecting shaft arranged between the installation boxes and a reversing bevel gear assembly arranged at both ends of the connecting shaft, the reversing bevel gear assembly is used in conjunction with an external threaded sleeve, the number of the connecting shafts is two, a stepper motor is installed between the installation boxes, the output shaft of the stepper motor is provided with a sprocket assembly, the number of the sprocket assemblies is two, and the sprocket assembly is used in conjunction with the connecting shaft.

[0011] Preferably, the lifting mechanism includes a fixed pulley bolted to one side of the bottom of the construction platform and a movable pulley bolted to the top of the extension plate, the number of the movable pulleys is two, a winding wheel is bolted to the bottom of the construction platform, a rope is fixedly connected to the bottom of the construction platform, the rope is slidingly connected to the surfaces of the movable pulley and the fixed pulley, the other end of the rope is fixedly connected to the surface of the winding wheel, a worm gear reducer is installed at the bottom of the construction platform and on one side of the winding wheel, and the worm gear reducer is used in conjunction with a servo motor.

[0012] Preferably, a contact pad made of rubber is installed at the bottom end of the supporting shell.

[0013] Preferably, balls are installed on both sides of the sliding plate, the number of the balls is several, and the balls are slidably connected to the inner wall of the slideway shell.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] The utility model allows the sliding plate to rise and fall and slide in the slideway shell through the cooperation of the servo motor, the lifting mechanism and the extension plate, so that the supporting platform can be lifted to the construction platform for workers or materials to carry out construction, or lowered from the construction platform to the ground, which can not only improve the construction efficiency but also reduce the potential safety hazards. At the same time, through the cooperation of the power mechanism and the supporting mechanism, the effect of extended support can be provided on the outer side of the column, which reduces the shaking and tilting of the construction frame under the influence of external force, thereby improving the stability of the construction frame and the safety of the construction workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the cross-sectional structure of the installation box in the utility model;

[0018] Figure 3 For this utility model Figure 2 A schematic diagram of the enlarged structure at A in the middle;

[0019] Figure 4 This is a schematic diagram of the expanded structure of the external thread sleeve, the sliding block and the supporting shell of the utility model;

[0020] Figure 5 It is a schematic diagram of the cross-sectional structure of the construction platform in the utility model;

[0021] Figure 6 For this utility model Figure 5 A schematic diagram of the enlarged structure at B in the middle;

[0022] Figure 7 It is a schematic diagram of the unfolded structure of the slideway shell and the sliding plate in the utility model.

[0023] In the figure: 1. column; 2. construction platform; 3. guardrail; 4. universal wheel; 5. installation box; 6. power mechanism; 61. stepper motor; 62. sprocket assembly; 63. connecting shaft; 64. reversing bevel gear assembly; 7. support mechanism; 71. external thread sleeve; 72. sliding block; 73. support shell; 74. base; 75. support rod; 76. slide groove; 77. limit rod; 8. lifting mechanism; 81. worm gear reducer; 82. winding wheel; 83. rope; 84. movable pulley; 85. fixed pulley; 9. supporting platform; 10. extension plate; 11. slideway shell; 12. sliding plate; 13. servo motor; 14. handrail; 15. contact pad; 16. ball bearing. DETAILED DESCRIPTION

[0024] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the specific implementation method, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0025] See also Figure 1-7As shown, a safety construction frame for building construction comprises four columns 1, a construction platform 2 is bolted to the top of the four columns 1, a guardrail 3 is bolted to the top of the construction platform 2, a stable truss structure is formed between the four columns 1 through a plurality of staggered connecting rods, the stability of the construction frame structure can be improved, workers can stand on the construction platform 2 to carry out construction work at high places, universal wheels 4 are installed at the bottom ends of the columns 1, the universal wheels 4 can be used to move the construction frame at the construction site, the universal wheels 4 have a built-in brake structure, and can lock themselves in a limit position after moving to the construction position, and the lower parts of the four columns 1 are provided with There is an installation box 5, the column 1 is rotatably connected to the inner wall of the installation box 5, and the surfaces of the four columns 1 are provided with a supporting mechanism 7. The supporting mechanism 7 is used in conjunction with the installation box 5 to provide an auxiliary extended support effect on one side of the four columns 1, which can prevent the construction frame from accidentally tilting and falling when in use, greatly improving the safety of the device when in use. A power mechanism 6 is arranged between the installation boxes 5, and the power mechanism 6 can provide a reliable driving force for the operation of the supporting mechanism 7. A slide shell 11 is bolted to one side of the construction platform 2. The number of the slide shells 11 is two and they are symmetrically distributed. The inner walls of the slide shells 11 on both sides are slidably connected. There is a sliding plate 12, the cross-sectional shape of the sliding plate 12 is rectangular, the inner wall shape of the slideway shell 11 is adapted to the shape of the sliding plate 12, and the sliding plate 12 can maintain a horizontal state in the inner cavity of the slideway shell 11. A support platform 9 is bolted to one side of the sliding plate 12. When in use, workers can carry materials and stand on the support platform 9. An extension plate 10 is bolted to the other side of the sliding plate 12. A servo motor 13 is bolted to the bottom of the construction platform 2. A lifting mechanism 8 is set on one side of the bottom of the construction platform 2. The servo motor 13 and the extension plate 10 are used in conjunction with the lifting mechanism 8 to drive the sliding plate 12 to move in the slideway shell 11. The support platform 9 can be lifted and slid in the inner cavity, so that the support platform 9 can drive the workers and materials to the construction platform 2 for construction operations, or descend from the construction platform 2 to the ground, which greatly improves the construction efficiency and reduces the risk of falling from heights without climbing the construction frame, ensuring the safety of the construction workers. Handrails 14 are bolted on both sides of the top of the support platform 9. When the workers stand on the top of the support platform 9, they can hold the handrails 14 to keep their body balance. Even if they lose their balance accidentally at a height, they can grab the handrails 14 in time to avoid falling, providing effective protection for emergency situations, further improving the safety of the device when in use,

[0026] The support mechanism 7 includes an external threaded sleeve 71, the inner wall of the external threaded sleeve 71 is rotatably connected to the surface of the column 1, the bottom end of the external threaded sleeve 71 penetrates into the inner cavity of the installation box 5 and is fixed to each other through a bearing at the penetration point, the bottom end of the external threaded sleeve 71 is used in conjunction with the power mechanism 6, the surface of the external threaded sleeve 71 is threadedly connected to a sliding block 72, the surface of the sliding block 72 is hinged with a support shell 73, the top of the installation box 5 is bolted with a base 74, the top of the base 74 is hinged with a support rod 75, and the support rod 75 is an angled inclined design The support rod 75 is slidably connected to the inner wall of the support shell 73, and one end of the support shell 73 is fixedly connected to a limiting rod 77. Both sides of the surface of the support shell 73 are provided with sliding grooves 76. The limiting rod 77 is slidably connected to the inner wall of the sliding groove 76. Through the cooperation of the limiting rod 77 and the sliding groove 76, the support rod 75 can be prevented from being disengaged when sliding in the inner cavity of the support shell 73. When the power mechanism 6 provides power to drive the external threaded sleeve 71 to rotate, the connection between the support rod 75 and the support shell 73 is fixed by the fixed position. The sliding block 72 can drive the support shell 73 to move downward on the surface of the external threaded sleeve 71, so that the limit rod 77 can slide from the bottom of the slide groove 76 to its top. Due to the inclined design of the support rod 75, the top end of the support rod 75 can be rotated in the horizontal direction, so that the bottom end of the support shell 73 can be rotated outward and expanded until the bottom end of the support shell 73 abuts against the ground, so that the support shell 73 and the support rod 75 can form an auxiliary support effect on the ground. A contact pad 15 is installed at the bottom end of the support shell 73. The material of the contact pad 15 is rubber with good elasticity and friction, which can enhance the fit effect of the support shell 73 when it contacts the ground. This can prevent the construction frame from accidentally tipping over during use, effectively reducing the risk of personal injury caused by accidental tilting of the construction frame during construction, and greatly improving the safety of the device during use. When the support shell 73 needs to be stored, the power mechanism 6 only needs to rotate the external threaded sleeve 71 in the opposite direction through power to restore the support shell 73 and the support rod 75 to their initial positions.

[0027] The power mechanism 6 includes a connecting shaft 63, the number of connecting shafts 63 is two and they are located between the installation boxes 5, both ends of the connecting shaft 63 pass through the inner cavity of the installation box 5 and are fixed to each other through bearings, both ends of the connecting shaft 63 are provided with a reversing bevel gear assembly 64, the reversing bevel gear assembly 64 includes two mutually meshing bevel gears, and the meshing and rotation of the helical tooth surfaces between them can achieve power transmission and change of direction, the bevel gear on the side of the reversing bevel gear assembly 64 is fixedly connected to one end of the connecting shaft 63, and the bevel gear on the top of the reversing bevel gear assembly 64 is fixedly connected to the bottom end of the external threaded sleeve 71, and a stepper motor 61 is bolted between the installation boxes 5 through a support plate, and the output shaft of the stepper motor 61 is set There are two sprocket assemblies 62, and the number of sprocket assemblies 62 is symmetrically designed. The sprocket assembly 62 includes two toothed discs and chains meshed on their surfaces. One toothed disc of the sprocket assembly 62 is bolted to the output shaft of the stepper motor 61, and the other toothed disc of the sprocket assembly 62 is bolted to the surface of the connecting shaft 63. When the stepper motor 61 provides power to drive the toothed discs of the two sets of sprocket assemblies 62 to rotate, the chain transmission of the sprocket assembly 62 can make the connecting shafts 63 on both sides rotate synchronously, and the rotating connecting shaft 63 can provide rotational power to the external threaded sleeve 71 through the setting of the reversing bevel gear assembly 64, thereby providing operating power for the support mechanism 7 on the surface of the four columns 1.

[0028] It should be noted that due to the setting of the reversing bevel gear assemblies 64 at both ends of the connecting shaft 63, the external threaded sleeves 71 at both ends of the connecting shaft 63 will rotate in opposite directions. In order to ensure that all the sliding blocks 72 can be raised and lowered synchronously on the surface of the external threaded sleeve 71, the threads on the surfaces of the external threaded sleeves 71 at both ends of the connecting shaft 63 are designed to be opposite to each other.

[0029] The lifting mechanism 8 includes a fixed pulley 85, which is bolted to one side of the bottom of the construction platform 2. A movable pulley 84 is bolted to the top of the extension plate 10. There are two movable pulleys 84. A winding wheel 82 is bolted to one side of the fixed pulley 85 at the bottom of the construction platform 2. A rope 83 is fixedly connected to the other side of the fixed pulley 85 at the bottom of the construction platform 2. The rope 83 is slidably connected to the surfaces of the movable pulley 84 and the fixed pulley 85. The other end of the rope 83 is fixedly connected to the surface of the winding wheel 82. A worm gear reducer 81 is installed at the bottom of the working platform 2 and on one side of the winding wheel 82. The worm input end of the worm gear reducer 81 is fixedly connected to the output shaft of the servo motor 13, and the worm output end of the worm gear reducer 81 is fixedly connected to the rotating shaft of the winding wheel 82. When the servo motor 13 provides power, the winding wheel 82 can be driven by the worm gear reducer 81 to rotate and wind the rope 83, so that the rope 83 brings the movable pulley 84 and the extension plate 10 up, so that the sliding plate 12 moves up in the inner cavity of the slideway shell 11. The lifting and sliding, due to the limitation of the shapes of the sliding plate 12 and the slide shell 11, the sliding plate 12 will not rotate in the slide shell 11, so that the supporting platform 9 can drive the workers and materials to the construction platform 2 for construction. Since the number of movable pulleys 84 is two, the output force required by the servo motor 13 can be greatly reduced, thereby improving the lifting efficiency and stability. Ball bearings 16 are installed on both sides of the sliding plate 12, and the number of ball bearings 16 is several. The ball bearings 16 are slidably connected with the inner wall of the slide shell 11, and the ball bearings 16 can reduce the friction between the sliding plate 12 and the inner wall of the slide shell 11, so that the rising state of the supporting platform 9 can be more stable. Therefore, the workers and materials can be quickly sent to the construction platform 2 or the ground without the workers' effort, which can greatly improve the construction efficiency and reduce the risk of falling without climbing the construction frame, thereby ensuring the safety of the construction workers. At the same time, since the worm gear reducer 81 has a large torque and a good self-locking effect, the state of the supporting platform 9 lifting and lowering the workers and materials can be made more stable.

[0030] It is worth noting that the worm gear reducer 81 proposed in this technical solution is in the prior art, and its working principle and beneficial effects when used are not described in detail here.

[0031] Working principle: When it is necessary to transport workers and materials to the top of the construction platform 2, first place the workers or materials on the top of the support platform 9, then start the servo motor 13 to drive the winding wheel 82 to wind the rope 83 through the worm gear reducer 81, so that the rope 83 can drive the extension plate 10, the sliding plate 12 and the support platform 9 to rise, and through the sliding connection between the sliding plate 12 and the slideway shell 11, the workers or materials on the top of the support platform 9 can be lifted to the construction platform 2 for construction, which can not only improve the efficiency of construction, but also ensure the safety of construction personnel. When it is necessary to prevent the device from tipping over, first start the stepper motor 61 to drive the two sets of sprocket assemblies 62 to rotate, and the transmission of the sprocket assemblies 62 can make the connecting shafts 63 on both sides rotate synchronously, and the rotating connecting shafts 63 can The reversing bevel gear assembly 64 can provide rotational power for the external threaded sleeve 71, so that the sliding block 72 can drive the support shell 73 to move downward. At this time, the limit rod 77 will slide in the slide groove 76, so that the bottom end of the support shell 73 can rotate and expand outward, and the top end of the strut 75 can rotate horizontally until the contact pad 15 at the bottom end of the support shell 73 abuts against the ground, which can form an auxiliary support effect on the ground, thereby preventing the construction frame from accidentally tipping over during use, thereby improving the safety of the device during use. When the support shell 73 needs to be stored after use, it only needs to rotate the stepping motor 61 in the opposite direction to rotate the external threaded sleeve 71 in the opposite direction, so that the support shell 73 and the strut 75 can be restored to their initial relatively upright state.

[0032] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A safety construction frame for building construction, comprising four columns (1) and a construction platform (2) bolted to the top of the columns (1), characterized in that: Also includes: A guardrail (3) bolted to the top of the construction platform (2), a universal wheel (4) is installed at the bottom end of the column (1), a mounting box (5) is arranged below the surface of the four columns (1), and a supporting mechanism (7) is arranged on the surface of the four columns (1); A power mechanism (6) is arranged between the installation boxes (5), a slideway shell (11) is bolted to one side of the construction platform (2), the number of the slideway shells (11) is two and they are symmetrically distributed, the inner walls of the slideway shells (11) on both sides are slidably connected with sliding plates (12), the cross-sectional shape of the sliding plates (12) is rectangular, and the shape of the inner wall of the slideway shell (11) and the shape of the sliding plate (12) are mutually adapted; A support platform (9) is bolted to one side of a sliding plate (12), an extension plate (10) is bolted to the other side of the sliding plate (12), a servo motor (13) is bolted to the bottom of the construction platform (2), a lifting mechanism (8) is provided on one side of the bottom of the construction platform (2), and handrails (14) are bolted to both sides of the top of the support platform (9).

2. A safety construction frame for building construction according to claim 1, characterized in that: The support mechanism (7) comprises an external threaded sleeve (71) rotatably connected to the surface of the column (1) and a sliding block (72) threadedly connected to the surface of the external threaded sleeve (71); the bottom end of the external threaded sleeve (71) penetrates into the inner cavity of the installation box (5) and is rotatably connected to the penetration point thereof; the surface of the sliding block (72) is hingedly connected with a support shell (73); the top of the installation box (5) is bolted with a base (74); the top of the base (74) is hingedly connected with a support rod (75); the support rod (75) is slidably connected to the inner wall of the support shell (73); one end of the support shell (73) is fixedly connected with a limiting rod (77); both sides of the surface of the support shell (73) are provided with sliding grooves (76); the limiting rod (77) is slidably connected to the inner wall of the sliding groove (76).

3. A safety construction frame for building construction according to claim 2, characterized in that: The power mechanism (6) comprises a connecting shaft (63) arranged between the installation boxes (5) and a reversing bevel gear assembly (64) arranged at both ends of the connecting shaft (63), the reversing bevel gear assembly (64) being used in conjunction with an external threaded sleeve (71), the number of the connecting shafts (63) being two, a stepping motor (61) being installed between the installation boxes (5), the output shaft of the stepping motor (61) being provided with a sprocket assembly (62), the number of the sprocket assembly (62) being two, and the sprocket assembly (62) being used in conjunction with the connecting shaft (63).

4. A safety construction frame for building construction according to claim 1, characterized in that: The lifting mechanism (8) comprises a fixed pulley (85) bolted to one side of the bottom of the construction platform (2) and a movable pulley (84) bolted to the top of the extension plate (10), the number of the movable pulleys (84) is two, the bottom of the construction platform (2) is bolted with a winding wheel (82), the bottom of the construction platform (2) is fixedly connected with a rope (83), the rope (83) is slidably connected to the surface of the movable pulley (84) and the fixed pulley (85), the other end of the rope (83) is fixedly connected to the surface of the winding wheel (82), and the bottom of the construction platform (2) is installed with a worm gear reducer (81), and the worm gear reducer (81) is used in conjunction with a servo motor (13).

5. A safety construction frame for building construction according to claim 2, characterized in that: A contact pad (15) made of rubber is installed at the bottom end of the support shell (73).

6. A safety construction frame for building construction according to claim 1, characterized in that: Ball bearings (16) are installed on both sides of the sliding plate (12), the number of the ball bearings (16) is several, and the ball bearings (16) are slidably connected to the inner wall of the slideway housing (11).

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