An assembled construction platform for elevator shaft

Abstract

The present invention relates to the technical field of elevator shaft construction equipment, and specifically to an assembled construction platform for an elevator shaft, comprising a U-shaped block, a convex block, a plug-in plate, a positioning block and a platform bottom plate, wherein at least two of the U-shaped blocks are symmetrically installed at the intersection of the load-bearing wall and the floor surface of the elevator shaft door opening, a convex block is fixedly installed at the center position of the opposite surfaces of the two U-shaped blocks, a plug-in groove is opened at the center position of the two convex blocks, a plug-in plate is plugged into the plug-in groove, and the cross-section of the plug-in plate is concave; square holes are opened horizontally and evenly spaced near the bottom position of the plug-in plate, a positioning block is plugged into each of the square holes, and the positioning block is fixed to the side wall of the plug-in plate by a positioning bolt, a platform bottom plate is hinged at one end of the positioning block facing the inside of the elevator shaft, placement grooves are opened at even intervals on the top of the platform bottom plate, and a threaded positioning groove is arranged at the bottom of the placement groove. The present invention has the characteristics of high safety and wide application range.

Description

Technical Field

[0001] The invention relates to the technical field of elevator shaft construction equipment, in particular to an assembled construction platform for an elevator shaft. Background Art

[0002] The elevator shaft is a kind of hoistway used to install the elevator. The size of the shaft is not fixed, but depends on the model of the elevator. A door opening needs to be reserved on the shaft to install the elevator door, and the elevator machine room will be set at the top of the shaft. Different elevator shafts can carry different weights, and the appropriate weight can be set according to actual needs. The elevator shaft is generally constructed by pouring. After pouring, a construction platform needs to be set up inside the elevator shaft. The construction workers use the construction platform to perform fine construction work on the inner wall of the elevator shaft.

[0003] At present, most of the elevator shaft construction platforms are built in the form of scaffolding. When building the steel pipe scaffolding operating platform, as the operating platform continues to rise, the scaffolding's own weight load continues to increase, the stability continues to decrease, and the construction safety hazard is great; at the same time, in addition to the scaffolding-type construction platform, the tripod-type construction platform is more commonly used. The platform positions its bottom against the edge of the elevator shaft door opening and rises with the lifting of the hoist. The top of the construction platform of this type is a flat platform. When facing floors with different heights, the distance between two adjacent elevator shaft door openings is different. Since the construction height of each part on the construction platform is consistent, when facing floors with larger heights, a small amount of scaffolding needs to be built on the basis of this method to meet the construction needs, that is, it cannot meet the needs of working at different heights. Summary of the invention

[0004] In view of the fact that most of the elevator shaft construction platforms in the prior art are erected in the form of scaffolding, when erecting the steel pipe scaffolding operating platform, as the operating platform continues to rise, the scaffolding's own weight load continues to increase, the stability continues to decrease, and the construction safety hazard is great; at the same time, in addition to the scaffolding-type construction platform, the tripod-type construction platform is more commonly used. The platform positions its bottom against the edge of the elevator shaft door opening and rises with the lifting of the elevator. The top of the construction platform of this type is a flat platform. When facing floors with different heights, the distances between two adjacent elevator shaft door openings are different. Since the construction heights at various locations on the construction platform are consistent, when facing floors with larger heights, a small amount of scaffolding needs to be erected on the basis of this method to meet the construction needs, that is, the problem that the needs of working at work stations at different heights cannot be met. The present invention provides an assembled construction platform for an elevator shaft.

[0005] The technical solution adopted by the present invention to solve the technical problem is: an assembled construction platform for an elevator shaft, comprising a U-shaped block, a convex block, a plug plate, a positioning block and a platform bottom plate, wherein at least two of the U-shaped blocks are symmetrically installed at the intersection of the load-bearing wall and the floor of the elevator shaft door opening, and a convex block is fixedly installed at the center position of the opposite surfaces of the two U-shaped blocks, and a plug groove is opened at the center position of the two convex blocks, and a plug plate is plugged into the plug groove, and the cross section of the plug plate is concave;

[0006] The inside of the plug plate is provided with square holes at equal intervals horizontally near the bottom thereof, a positioning block is inserted into each of the square holes, and the positioning block is fixed to the side wall of the plug plate by positioning bolts, and a platform bottom plate is hinged at one end of the positioning block facing the inside of the elevator shaft;

[0007] The top of the platform bottom plate is provided with placement grooves at equal intervals, the bottom of the placement grooves is provided with threaded positioning grooves, each of the vertical surfaces of the placement grooves is provided with horizontal pieces, and each horizontal piece is installed with a platform pedal, and the cross-section of the platform pedal is L-shaped.

[0008] Furthermore, the internal width of the U-shaped block is greater than the thickness of the load-bearing wall of the elevator shaft door opening, and the end face of the U-shaped block away from the elevator shaft is longitudinally and evenly spaced with first threaded holes, and a reinforcement bolt is installed inside each of the first threaded holes, and the end of each reinforcement bolt is close to the wall surface of the load-bearing wall of the elevator shaft door opening.

[0009] Furthermore, a vertical groove is formed on the convex block near the end surface of the convex block, and second threaded holes are formed at equal intervals in the longitudinal direction of the vertical groove, and fastening bolts are installed in a plurality of the second threaded holes.

[0010] Furthermore, the horizontal member includes a support plate fixedly installed on the vertical surface of the placement groove by spot welding, a positioning shaft is fixedly installed at the end of the support plate, a calibration support block is installed on the outer wall of the positioning shaft through a bearing, a telescopic groove is opened at the bottom center position of the calibration support block, a movable rod is installed in the telescopic groove, a connecting plate is installed on the bottom of the movable rod through a pin shaft, the connecting plate is provided with a limiting bolt, and the side wall of the calibration support block is reserved with an installation groove for installing the platform pedal.

[0011] Furthermore, a rectangular opening is arranged at the top center position of the calibration support block, a triangular pointer is installed in the rectangular opening, and a scale is arranged circumferentially at the end surface of the positioning shaft.

[0012] Furthermore, the connecting plate is a magnetic component, the bottom end surface of the calibration support block is a horizontal plane, and an adsorption magnet is embedded in the bottom end surface of the calibration support block.

[0013] Furthermore, a rotating shaft is transversely installed at one end of the platform base plate, an extension arm is fixedly installed on the outer wall of the rotating shaft, a positioning hole is opened at a position of the platform base plate close to the rotating shaft, and several of the positioning holes are distributed in a circular matrix relative to the rotating shaft. A positioning pin is movably installed at one end of the extension arm, and limit plug-ins are installed at both ends of the positioning pin.

[0014] Furthermore, the cross-section of one end of the extension arm that contacts the inner wall of the elevator shaft is cylindrical, and a damping pad is embedded in the outer wall of the cylindrical end of the extension arm.

[0015] Beneficial effects of the present invention:

[0016] 1: The present invention provides an assembled construction platform for an elevator shaft, which is provided with components such as a spreading part and a material storage part. The present invention can be disassembled and assembled as a whole. When the construction work in the elevator shaft of a certain floor is completed, the present invention can be disassembled and transported to a higher floor, and then the disassembled components can be assembled to meet the use requirements between different floors. This method will not increase the deadweight load with the increase of floors like traditional scaffolding. The load of the present invention itself is consistent, and it is safer than scaffold-type construction platforms.

[0017] 2: The present invention provides an assembled construction platform for an elevator shaft. The construction platform of the present invention is composed of a plurality of platform base plates and platform pedals. The platform base plates serve as a support member to provide a placement area for the platform pedals, so that after the installation, the plurality of platform pedals are combined into a stepped construction platform with a height difference between the platforms. Under the stepped construction platform, the construction workers' operable longitudinal distance is increased to meet the needs of working at different heights, thereby improving work efficiency.

[0018] 3: The present invention provides an assembled construction platform for an elevator shaft, which is provided with components such as an extension arm. On the one hand, the provision of the extension arm increases the relative length of the platform bottom plate, thereby being suitable for the use requirements of elevator shafts of different specifications. On the other hand, when working in an elevator shaft of the same specification, by adjusting the angle of the extension arm, the relative length of the platform bottom plate is also changed, so that the inclination angle of the platform bottom plate relative to the horizontal is adjustable, so that construction personnel can make targeted adjustments according to the longitudinal working height requirements in actual operations, and the scope of application is wider.

[0019] 4: The present invention provides an assembled construction platform for an elevator shaft. The present invention fixes the position of the platform pedals by means of horizontal members. After installation, several platform pedals are in a horizontal position. When construction workers stand on the platform pedals in this state to work, the stability is higher, and no matter how the inclination angle of the platform bottom plate relative to the horizontal plane changes, the horizontal installation position of the platform pedals can be quickly found. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0021] Figure 1 It is a cross-sectional view of the overall structure of the present invention;

[0022] Figure 2 It is a partial structural installation stereogram of the present invention;

[0023] Figure 3 The present invention Figure 1 A partial enlarged schematic diagram of the middle A area;

[0024] Figure 4 The present invention Figure 1 A partial enlarged schematic diagram of the middle B area;

[0025] Figure 5 The present invention Figure 2 A partial enlarged schematic diagram of the middle C area;

[0026] In the figure: 1. U-shaped block; 2. convex block; 3. plug-in plate; 4. positioning block; 5. platform bottom plate; 6. placement slot; 7. horizontal piece; 8. platform pedal; 11. first threaded hole; 12. reinforcement bolt; 21. plug-in slot; 22. vertical slot; 23. second threaded hole; 24. fastening bolt; 71. support plate; 72. positioning shaft; 73. calibration support block; 74. telescopic slot; 75. movable rod; 76. connecting plate; 77. triangular pointer; 78. scale; 79. adsorption magnet; 51. rotating shaft; 52. extension arm; 53. positioning hole; 54. positioning pin; 55. limit plug-in; 56. damping pad. DETAILED DESCRIPTION

[0027] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0028] like Figure 1-Figure 5 As shown, an assembled construction platform for an elevator shaft of the present invention comprises a U-shaped block 1, a convex block 2, a plug plate 3, a positioning block 4 and a platform bottom plate 5, at least two of the U-shaped blocks 1 are symmetrically installed at the intersection of the load-bearing wall and the layer of the elevator shaft door opening, and a convex block 2 is fixedly installed at the center position of the opposite surfaces of the two U-shaped blocks 1, and a plug groove 21 is opened at the center position of the two convex blocks 2, and a plug plate 3 is plugged into the plug groove 21, and the cross section of the plug plate 3 is concave, and the U-shaped block 1, the convex block 2, the plug plate 3, the positioning block 4 and the platform bottom plate 5 and other components are all disassembled parts, and in the actual application process, they need to be transported to the working environment for online assembly;

[0029] The inner width of the U-shaped block 1 is greater than the thickness of the load-bearing wall of the elevator shaft door opening. The end face of the U-shaped block 1 away from the elevator shaft is longitudinally provided with first threaded holes 11 at equal intervals. A reinforcing bolt 12 is installed in each of the first threaded holes 11. The end of each reinforcing bolt 12 is close to the wall surface of the load-bearing wall of the elevator shaft door opening. Figure 2 As shown, when installing the U-shaped block 1, one side of the U-shaped block 1 needs to be pressed against the negative side of the load-bearing wall of the elevator shaft door opening, and the U-shaped block 1 is pushed along the negative side track so that the other end face of the U-shaped block 1 is pressed against the wall. Finally, the operator twists a number of reinforcing bolts 12 in sequence with a wrench until the end face of the reinforcing bolt 12 is pressed against the positive side of the load-bearing wall of the elevator shaft door opening to complete the installation of the U-shaped block 1. On the one hand, the reinforcing bolt 12 has a positioning and locking effect on the U-shaped block 1. On the other hand, since the reinforcing bolt 12 has a certain travel diameter, the U-shaped block 1 can meet the installation requirements of the load-bearing walls of the elevator shaft door openings with different thicknesses.

[0030] See also Figure 2 , the inside of the plug plate 3 is provided with square holes 31 at equal intervals horizontally near the bottom thereof, a positioning block 4 is inserted into each of the square holes 31, and the positioning block 4 is fixed to the side wall of the plug plate 3 by positioning bolts, and a platform bottom plate 5 is hinged at one end of the positioning block 4 facing the inside of the elevator shaft. After the U-shaped block 1 is installed, the operator installs the convex block 2 to the outer wall of the U-shaped block 1 by fixing bolts, and then inserts the plug plate 3 along the plug slot 21;

[0031] See also Figure 2-Figure 5 , the convex block 2 is provided with a vertical groove 22 near the end surface of the convex block 2, and the vertical groove 22 is provided with second threaded holes 23 at equal intervals in the longitudinal direction, and a plurality of the second threaded holes 23 are fitted with fastening bolts 24; after the plug board 3 is inserted into the plug-in slot 21, a plurality of the fastening bolts 24 are twisted in sequence by a wrench so that the end surface of any fastening bolt 24 is in close contact with the inner wall of the plug-in slot 21, and the rotation of the fastening bolt 24 can be stopped. In this way, the horizontal and vertical positions of the plug board 3 relative to the plug-in slot 21 can be limited by the friction between the plurality of fastening bolts 24 and the inner wall of the plug-in slot 21, so that the stability of the plug board 3 is higher, and no longitudinal and lateral displacement or shaking will occur;

[0032] See also Figure 1, the top of the platform bottom plate 5 is provided with placement grooves 6 at equal intervals, and the bottom of the placement grooves 6 is provided with threaded positioning grooves, and each of the vertical surfaces of the placement grooves 6 is provided with horizontal pieces 7, and each horizontal piece 7 is installed with a platform pedal 8. After the plug board 3 is positioned, the positioning block 4 connected to one end of the platform bottom plate 5 is inserted into the square hole 31, and the positioning block 4 is fixed to the side wall of the plug board 3 by the positioning bolts. During this installation process, the position of the platform bottom plate 5 is biased toward the elevator shaft door opening, and the accompanying staff needs to support their hands on one side of the platform bottom plate 5 to prevent the platform bottom plate 5 from deflecting. When all the positioning bolts are fixed, the operator can hold the long hook to hook the side wall of the platform bottom plate 5, and slowly lower the platform through the long hook. The bottom plate 5 is arranged until one end of the platform bottom plate 5 is placed on the inner wall of the elevator shaft. In the above process, the long hook can also be replaced by a rope, and one end of the rope is tied to one end of the platform bottom plate 5. The rope is slowly loosened so that one end of the platform bottom plate 5 is placed on the inner wall of the elevator shaft. After the platform bottom plate 5 is relatively still, a plurality of platform pedals 8 are installed on the horizontal member 7 in sequence to complete the assembly of the present invention. After the assembly is completed, the platform bottom plate 5 is inclined relative to the horizontal plane, and a plurality of platform pedals 8 are located on the platform bottom plate 5 at the same height increase prevention level, that is, a plurality of platform pedals 8 are combined to form a stepped construction platform. Under the stepped construction platform, the operable longitudinal distance of the construction personnel is improved, and the work efficiency is thereby improved.

[0033] It should be further explained that the above-mentioned long hook and rope traction method is only to reduce the deflection speed of the platform bottom plate 5 when it is deflected, to prevent the platform bottom plate 5 from quickly deflecting to the inner wall of the elevator shaft due to its own gravity without external force, and colliding with the inner wall of the elevator shaft to cause the rigidity of the platform bottom plate 5 to be damaged. At the same time, in the actual operation process, other methods can be adopted to make the platform bottom plate 5 slowly rest on the inner wall of the elevator shaft. This method only needs to comply with the safety operation specifications and is not limited to the long hook and rope method.

[0034] See also Figure 1-Figure 4A rotating shaft 51 is transversely installed at one end of the platform bottom plate 5, and an extension arm 52 is fixedly installed on the outer wall of the rotating shaft 51. A positioning hole 53 is opened at the position of the platform bottom plate 5 close to the rotating shaft 51, and a plurality of the positioning holes 53 are distributed in a circular matrix relative to the rotating shaft 51. A positioning pin 54 is movably installed at one end of the extension arm 52, and limited position plug-ins 55 are installed at both ends of the positioning pin 54. The cross-section of one end of the extension arm 52 that is used to contact the inner wall of the elevator shaft is cylindrical, and a damping pad 56 is embedded in the outer wall of one end of the extension arm 52 located in the cylinder. During specific operation, the extension arm 52 can rotate relative to the rotating shaft 51. Before actual installation, the extension arm 52 can be adjusted relative to the rotating shaft 51 according to the actual width of the elevator shaft. 1, after the angle adjustment is completed, the positioning pin 54 is inserted into the positioning hole 53 to lock the position of the extension arm 52, and finally the limit plug 55 is inserted into the positioning pin 54 to lock the position of the positioning pin 54. On the one hand, the setting of the extension arm 52 increases the relative length of the platform bottom plate 5, so as to be suitable for the use requirements of elevator shafts of different specifications. On the other hand, when facing the elevator shaft operation of the same specification, by adjusting the angle of the extension arm 52, the relative length of the platform bottom plate 5 is also changed, so that the inclination angle of the platform bottom plate 5 relative to the horizontal is adjustable, so that the construction personnel can make targeted adjustments according to the longitudinal working height requirements in actual operation, and the scope of application is wider.

[0035] See also Figure 1-Figure 3The horizontal member 7 includes a support plate 71 fixedly installed on the vertical surface of the placement slot 6 by spot welding, a positioning shaft 72 is fixedly installed at the end of the support plate 71, and a calibration support block 73 is installed on the outer wall of the positioning shaft 72 through a bearing. A telescopic slot 74 is opened at the bottom center of the calibration support block 73, and a movable rod 75 is installed in the telescopic slot 74. A connecting plate 76 is installed at the bottom of the movable rod 75 through a pin shaft. The connecting plate 76 is equipped with a limiting bolt, and a mounting slot for mounting the platform pedal 8 is reserved on the side wall of the calibration support block 73. A rectangular opening is provided at the top center of the calibration support block 73, and a triangular pointer 77 is installed in the rectangular opening. A scale 78 is circumferentially arranged at the end face of the positioning shaft 72. During specific operation, after the platform bottom plate 5 is deflected to the inner wall of the elevator shaft and is in a relatively static state, the calibration support block 73 is in a vertical state under its own gravity. In this state, the position of the scale 78 pointed to by the visual triangular pointer 77 is recorded as S1, and then the operation is carried out. The operator pulls down the movable rod 75 (during this process, the operator's hand will shake, causing the position of the calibration support block 73 to deflect), and makes the connecting plate 76 connected to the bottom of the movable rod 75 located at the end face of the placement slot 6. The operator then visually adjusts the calibration support block 73 by looking at the scale 78 so that the triangular pointer 77 points to the position S1 again, and then fixes the connecting plate 76 in the placement slot 6 by the limit bolt. At this time, the calibration support block 73 has a side with a mounting groove that is perpendicular to the horizontal plane. Finally, the platform pedal 8 with an L-shaped cross-section is installed on the side wall of the calibration support block 73 by locking the bolts to complete the installation of the platform pedal 8. In the above method, several platform pedals 8 are in a horizontal position after installation. When the construction personnel stand on the platform pedal 8 in this state to work, the stability is higher, and no matter how the inclination angle of the platform base plate 5 relative to the horizontal plane changes, the horizontal installation position of the platform pedal 8 can be quickly found.

[0036] See also Figure 4 The connecting plate 76 is a magnetic component, the bottom end surface of the calibration support block 73 is a horizontal plane, and an adsorption magnet 79 is embedded in the bottom end surface of the calibration support block 73. In the initial state, the connecting plate 76 is adsorbed on the lower end surface of the calibration support block 73 through the adsorption magnet 79, so that the center of gravity of the connecting plate 76, the calibration support block 73, the movable rod 75 and the connecting plate 76 as a whole is in the center position, that is, when one end of the platform bottom plate 5 is placed on the inner wall of the elevator shaft, it is ensured that the side of the calibration support block 73 with the installation groove is always perpendicular to the horizontal plane.

[0037] 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 only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. An assembled construction platform for an elevator shaft, comprising a U-shaped block (1), a convex block (2), a plug plate (3), a positioning block (4) and a platform bottom plate (5), characterized in that: At least two of the U-shaped blocks (1) are symmetrically installed at the intersection of the load-bearing wall and the floor of the elevator shaft door opening, and a convex block (2) is fixedly installed at the center position of the opposite surfaces of the two U-shaped blocks (1), and a plug-in groove (21) is opened at the center position of the two convex blocks (2), and a plug-in plate (3) is plugged into the plug-in groove (21), and the cross-section of the plug-in plate (3) is concave; Square holes (31) are horizontally and evenly spaced inside the plug plate (3) near its bottom, and a positioning block (4) is inserted into each of the square holes (31). The positioning block (4) is fixed to the side wall of the plug plate (3) by positioning bolts, and a platform bottom plate (5) is hingedly connected to one end of the positioning block (4) facing the inside of the elevator shaft; The top of the platform bottom plate (5) is provided with placement grooves (6) at equal intervals, the bottom of the placement grooves (6) is provided with threaded positioning grooves, a horizontal piece (7) is provided at the vertical surface of each placement groove (6), and a platform pedal (8) is installed on each horizontal piece (7), and the cross section of the platform pedal (8) is L-shaped; The internal width of the U-shaped block (1) is greater than the thickness of the load-bearing wall of the elevator shaft door opening. The end surface of the U-shaped block (1) away from the elevator shaft is longitudinally provided with first threaded holes (11) at equal intervals. A reinforcing bolt (12) is installed in the interior of each of the first threaded holes (11). The end of each reinforcing bolt (12) is closely attached to the wall surface of the load-bearing wall of the elevator shaft door opening. A vertical groove (22) is provided near the end surface of the convex block (2), and second threaded holes (23) are provided at equal intervals in the longitudinal direction of the vertical groove (22), and a plurality of the second threaded holes (23) are fitted with fastening bolts (24); The horizontal member (7) comprises a support plate (71) fixedly mounted on the vertical surface of the placement groove (6) by spot welding, a positioning shaft (72) is fixedly mounted at the end of the support plate (71), a calibration support block (73) is mounted on the outer wall of the positioning shaft (72) via a bearing, a telescopic groove (74) is provided at the bottom center of the calibration support block (73), a movable rod (75) is mounted in the telescopic groove (74), a connecting plate (76) is mounted at the bottom of the movable rod (75) via a pin shaft, and a limiting bolt is provided on the connecting plate (76), and a mounting groove for mounting a platform pedal (8) is reserved on the side wall of the calibration support block (73); A rectangular opening is provided at the center of the top of the calibration support block (73), a triangular pointer (77) is installed in the rectangular opening, and a scale (78) is provided in the circumferential direction at the end surface of the positioning shaft (72); The connecting plate (76) is a magnetic component, the bottom end surface of the calibration support block (73) is a horizontal surface, and an adsorption magnet (79) is embedded in the bottom end surface of the calibration support block (73); A rotating shaft (51) is transversely mounted at one end of the platform bottom plate (5), an extension arm (52) is fixedly mounted on the outer wall of the rotating shaft (51), a positioning hole (53) is opened at a position of the platform bottom plate (5) close to the rotating shaft (51), a plurality of the positioning holes (53) are distributed in a circular matrix relative to the rotating shaft (51), a positioning pin (54) is movably mounted at one end of the extension arm (52), and limit plug-ins (55) are mounted at both ends of the positioning pin (54).

2. The assembled construction platform for an elevator shaft according to claim 1, characterized in that: The cross section of one end of the extension arm (52) used for contacting the inner wall of the elevator shaft is cylindrical, and a damping pad (56) is embedded in the outer wall of the cylindrical end of the extension arm (52).

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