Device for jacking construction elevator foundation

Abstract

A construction elevator foundation back-jacking device relates to the technical field of construction machinery and comprises a support body, the top end of the support body is connected with a rectangular frame supporting plate through a telescopic mechanism, and the rectangular frame supporting plate is used for abutting against the lower end of a basement roof where construction is located. First mounting holes are formed in the four corners of the upper end of the rectangular frame supporting plate, colored light emitters used for identifying the mounting position of the rectangular frame supporting plate are arranged in the first mounting holes, the colored light emitters emit light upwards in the vertical direction, and the ends of the colored light emitters are embedded in the first mounting holes. The fabricated structure is prefabricated in a factory, has good universality, is convenient to disassemble and assemble, is high in construction efficiency, can be repeatedly used, and is beneficial to reducing the labor and material use cost.

Description

Technical Field

[0001] The invention relates to the technical field of construction machinery, in particular to a device for returning the foundation of a construction elevator. Background Art

[0002] In existing engineering projects, whether for mid-rise or high-rise buildings, construction elevators are essential equipment for vertical transportation. Construction elevators are typically installed on the basement ceiling, with the elevator foundation installed. However, the basement ceiling has limited load-bearing capacity, so a foundation return mechanism is required. The upper end of the return mechanism abuts the basement ceiling, while the lower end abuts the basement floor. This allows the load applied by the construction elevator to be transferred to the basement floor through the return mechanism, ensuring the structural safety of the basement ceiling.

[0003] The existing top-back technology solution usually uses a formwork support system under the construction elevator foundation for top-back. However, for basements of different heights, the height of ordinary steel pipes and plate buckles and other vertical poles does not match them, the frame parameters are not set in a standardized manner, the versatility is poor, the top-back cycle is long, the turnover of materials such as steel pipes is slow, and the large top-back area affects the construction progress of the basement secondary structure, plastering, various pipelines, etc., affecting the construction period and resulting in high project costs. Utility Model Content

[0004] The present invention discloses a device for constructing the top return of an elevator foundation. The device is a prefabricated assembled structure in a factory, has good versatility, is easy to disassemble and install, has high construction efficiency, can be used repeatedly, and is conducive to reducing labor and material costs.

[0005] In order to achieve the above purpose, the technical solution of this novel invention is:

[0006] A device for returning the foundation to the top of an elevator during construction comprises a bracket body, the top of the bracket body being connected to a rectangular frame support plate via a telescopic mechanism, the rectangular frame support plate being used to abut against the lower end of the basement top plate where construction is taking place, first mounting holes being provided at the four corners of the upper end of the rectangular frame support plate, a colored light emitter being provided in the first mounting hole for marking the installation position of the rectangular frame support plate, the colored light emitter emitting light vertically upward, the end of the colored light emitter being embedded in the first mounting hole, and a lifting universal wheel being provided at the bottom of the bracket body.

[0007] Preferably, the bracket body is formed by connecting a plurality of construction elevator standard sections stacked on top of each other, and adjacent construction elevator standard sections are fixedly connected by high-strength bolts.

[0008] Preferably, the construction elevator standard section is composed of four vertical columns arranged in a rectangle and a plurality of cross beams connected between adjacent vertical columns, and the bottom cross beam and the top cross beam of adjacent construction elevator standard sections are in contact and fixedly connected through high-strength bolts.

[0009] Preferably, the vertical column of the topmost construction elevator standard section is a steel pipe structure, and the inner surface of the steel pipe structure is provided with internal threads.

[0010] Preferably, the bottom four corners of the rectangular frame support plate are respectively provided with second mounting holes, the four second mounting holes are opposite to the four vertical columns of the topmost construction elevator standard section in the up-down direction, and a telescopic mechanism is connected between the opposite second mounting holes and the vertical columns.

[0011] Preferably, the telescopic mechanism comprises a screw rod, the lower part of the screw rod is screwed into the vertical column, the upper end of the screw rod is connected with a connecting cap through a thrust bearing, and the connecting cap is tightly connected with the second mounting hole.

[0012] Preferably, the second mounting hole is a blind hole, a threaded hole is longitudinally formed in the bottom of the second mounting hole, the top end of the connecting cap is provided with a threaded stud matched with the threaded hole, the lower end of the connecting cap is further provided with a handle for rotating the connecting cap, and a through hole is formed in the screw rod for passing through a screw rod.

[0013] Preferably, the lifting universal wheel comprises a sliding sleeve slidingly connected with the vertical column of the bottommost construction elevator standard section, and a universal wheel fixedly arranged on the outer wall of the sliding sleeve, the sliding sleeve and the vertical column are fixedly connected through a positioning pin, the lower part and the middle part of the vertical column are respectively provided with a first pin hole, the sliding sleeve is provided with a second pin hole, and the positioning pin passes through the first pin hole and the second pin hole.

[0014] The device for construction elevator foundation back-up has the following advantages:

[0015] The device is of a fabricated structure, is convenient to transport, disassemble and assemble, and is directly hoisted to the site for use after simple debugging, so that the construction efficiency is greatly improved, the construction difficulty is reduced, the device has good universality, can be repeatedly used, and is beneficial to reducing the labor cost and economic cost of construction. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme of the device, the drawings used in the embodiments are briefly introduced as follows, and constitute a part of the specification, and are used together with the embodiments of the device to explain the device, and do not constitute a limitation on the device.

[0017] Figure 1This is a schematic diagram of the overall structure of the new model (only one lifting universal wheel is drawn, and the lifting universal wheels in other places are similar);

[0018] Figure 2 This is a schematic diagram of the top view of the novel rectangular frame support plate when it is turned over;

[0019] Figure 3 It is a structural schematic diagram of the connection between the novel rectangular frame support plate and the telescopic mechanism.

[0020] 1. Bracket body; 11. Vertical column; 12. Crossbeam; 2. Telescopic mechanism; 21. Connecting cap; 22. Stud; 23. Handle; 24. Screw; 25. Through hole; 26. Thrust bearing; 3. Rectangular frame support plate; 31. Second mounting hole; 32. Threaded hole; 33. First mounting hole; 4. Sliding sleeve; 5. Universal wheel. DETAILED DESCRIPTION

[0021] The following will be combined with the accompanying drawings of the embodiments of the present invention to clearly and completely describe the technical solutions of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0022] The following embodiments may be understood as explaining a local structure of the present invention individually, or may be understood as explaining a larger structure of the present invention through a combination of multiple embodiments.

[0023] A device for returning the foundation of an elevator to the top of a building, such as Figure 1-3 As shown, it includes a bracket body 1, the top of the bracket body 1 is connected to a rectangular frame support plate 3 through a telescopic mechanism 2, and the rectangular frame support plate 3 is used to abut against the lower end of the basement roof where the construction is located. The four corners of the upper end of the rectangular frame support plate 3 are provided with first mounting holes 33, and the first mounting hole 33 is provided with a colored light emitter (such as a laser pen, not shown in the figure) for marking the installation position of the rectangular frame support plate 3. The colored light emitter emits light vertically upward, and the end of the colored light emitter is embedded in the first mounting hole 33 to avoid being squeezed by the roof. The bottom of the bracket body is provided with a lifting universal wheel.

[0024] In this embodiment, in order to facilitate quick installation, a colored light emitter is provided to mark the installation position of the rectangular frame support plate 3. After the device is hoisted to the construction location, the colored light emitter can emit light to the basement ceiling, so that the device can be quickly aligned with the predetermined position, thereby improving construction efficiency and reducing construction difficulty.

[0025] Further, such as Figure 1As shown, the support body 1 is composed of a plurality of stacked, interconnected standard sections of a construction elevator. Adjacent sections are secured together using high-strength bolts. These sections can be prefabricated in a factory, eliminating the tedious on-site construction process of the support.

[0026] Further, such as Figure 1 As shown, the standard section of the construction elevator is composed of four rectangularly arranged columns 11 and a number of beams 12 connected between adjacent columns 11. The bottom beams 12 and top beams 12 of adjacent standard sections of the construction elevator are in contact and fixedly connected by high-strength bolts.

[0027] Further, such as Figure 1 As shown, the column 11 of the construction elevator standard section at the top is a steel pipe structure, and the inner surface of the steel pipe structure is provided with an internal thread.

[0028] Further, such as Figure 1 、 2 As shown, the four corners of the bottom of the rectangular frame support plate 3 are respectively provided with second mounting holes 31, and the four second mounting holes 31 are opposite to the four columns 11 of the standard section of the construction elevator at the top, and a telescopic mechanism 2 is connected between the relative second mounting holes and the columns 11.

[0029] Further, such as Figure 1 、 2 As shown in Figure 3, the telescopic mechanism 2 includes a screw rod 24, the lower part of the screw rod 24 is screwed into the column 11, and the upper end of the screw rod 24 is connected to the connecting cap 21 through the thrust bearing 26, and the connecting cap 21 is tightly connected to the second mounting hole 31.

[0030] Further, such as Figure 1 、 2 As shown in Figure 3, the second mounting hole 31 is a blind hole, and a threaded hole 32 is provided at the bottom of the second mounting hole 31 along the longitudinal direction. The top of the connecting cap 21 is provided with a stud 22 that cooperates with the threaded hole 32. The lower end of the connecting cap 21 is also provided with a handle 23 for rotating the connecting cap 21, and a through hole 25 is provided on the screw rod for passing the screw rod.

[0031] In this embodiment, by passing the screw rod through the through hole, the screw rod can be driven to rotate, thereby realizing the up and down movement of the rectangular frame support plate. The height of the device can be further adjusted based on the bracket body so that the rectangular frame support plate is against the lower end of the basement top plate.

[0032] Further, such as Figure 1As shown, the lifting universal wheel comprises a sliding sleeve 4 slidingly connected with the bottommost construction elevator standard section column 11, a universal wheel 5 fixedly arranged on the outer wall of the sliding sleeve 4, the sliding sleeve 4 and the column 11 are fixedly connected through a positioning pin (a common structure, not shown), the lower part and the middle part of the column 11 are respectively provided with a first pin hole, respectively used to make the universal wheel contact the ground and make the universal wheel separate from the ground, the sliding sleeve is provided with a second pin hole, and the positioning pin is used to pass through the first pin hole and the second pin hole.

[0033] The purpose of the embodiment is to further improve the convenience of construction. After the new type is pushed to the set position, the positioning pin is pulled out, the bottom of the lowermost column is abutted with the ground, and the universal wheel is contacted with the ground again after the construction is completed, so that the device is moved.

Claims

1. A device for returning the foundation of an elevator to the top, characterized by: It includes a bracket main body, the top of the bracket main body is connected to a rectangular frame support plate through a telescopic mechanism, the rectangular frame support plate is used to abut against the lower end of the basement roof where the construction is located, and first mounting holes are provided at the four corners of the upper end of the rectangular frame support plate. A colored light emitter is provided in the first mounting hole to mark the installation position of the rectangular frame support plate. The colored light emitter emits light vertically upward, and the end of the colored light emitter is embedded in the first mounting hole. The bottom of the bracket main body is provided with a lifting universal wheel.

2. The device for returning the foundation of an elevator to the top of a construction site according to claim 1, characterized in that: The bracket body is formed by connecting a plurality of construction elevator standard sections that are stacked on each other in sequence, and adjacent construction elevator standard sections are fixedly connected by high-strength bolts.

3. The device for constructing an elevator foundation top-down as claimed in claim 2, characterized in that: The construction elevator standard section is composed of four rectangularly arranged columns and several beams connected between adjacent columns. The bottom beams and top beams of adjacent construction elevator standard sections are in contact and fixedly connected by high-strength bolts.

4. The device for constructing an elevator foundation top-down as claimed in claim 3, characterized in that: The column of the standard section of the construction elevator located at the top is a steel pipe structure, and the inner surface of the steel pipe structure is provided with an internal thread.

5. The device for constructing an elevator foundation top-down as claimed in claim 4, characterized in that: The four corners of the bottom of the rectangular frame support plate are respectively provided with second mounting holes. The four second mounting holes are opposite to the four columns of the standard section of the construction elevator at the top, and a telescopic mechanism is connected between the relative second mounting holes and the columns.

6. The device for constructing an elevator foundation top-down as claimed in claim 5, characterized in that: The telescopic mechanism includes a screw rod, the lower part of the screw rod is screwed into the column, the upper end of the screw rod is connected to a connecting cap through a thrust bearing, and the connecting cap is tightly connected to the second mounting hole.

7. The device for constructing an elevator foundation top-down as claimed in claim 6, characterized in that: The second mounting hole is a blind hole, and a threaded hole is provided at the bottom of the second mounting hole in the longitudinal direction. A stud that cooperates with the threaded hole is provided at the top of the connecting cap. A handle for rotating the connecting cap is also provided at the lower end of the connecting cap. A through hole is provided on the screw for passing the screw rod.

8. The device for constructing an elevator foundation top-down as claimed in claim 7, characterized in that: The lifting universal wheel includes a sliding sleeve that is slidably connected to the bottom standard section column of the construction elevator, and a universal wheel fixed on the outer wall of the sliding sleeve. The sliding sleeve and the column are fixedly connected by a positioning pin. The lower part and the middle part of the column are respectively provided with a first pin hole, and the sliding sleeve is provided with a second pin hole. The positioning pin is used to pass through the first pin hole and the second pin hole.

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