Construction elevator foundation jacking device

Abstract

The utility model relates to a construction elevator foundation back-jacking device which is arranged on a bottom floor slab in a supporting mode and is back-jacked to a top floor slab from the lower portion, an elevator foundation is arranged on the top floor slab, and the construction elevator foundation back-jacking device comprises a back-jacking body and an adjustable top seat fixed to the top of the back-jacking body and used for being arranged on the top floor slab in a jacking mode. The back-jacking main body comprises a plurality of back-jacking standard sections, and the plurality of back-jacking standard sections are connected in the vertical direction to form the back-jacking main body; and the adjustable top seat is fixed on the top back-jacking standard knot, and the height of the adjustable top seat is adjustable. The back-jacking standard knots and the adjustable top seats are combined, the standard knots are convenient to detach, the overall height of the back-jacking device can be adjusted only by adjusting the number of the standard knots or adjusting the height of the adjustable top seats, and the back-jacking device can be used for back-jacking floor slabs with different heights and is convenient to recycle.

Description

Technical Field

[0001] The utility model relates to the field of building construction, in particular to a foundation return device for a construction elevator. Background Art

[0002] In construction projects, the construction elevator foundation at the construction site is usually placed on the basement roof. Since the weight of the construction elevator and its foundation itself exceeds the allowable load of the basement roof, it is necessary to return the construction elevator foundation to the top, and transfer the weight of the construction elevator foundation to the structural foundation through the return structure to ensure the structural safety of the basement floor. The traditional construction elevator foundation return method usually uses the fastener steel pipe return method. This method is not only slow to install and dismantle, but also has a fixed return structure height, which cannot be used between basements of different heights. Utility Model Content

[0003] To solve the above problems, a construction elevator foundation returning device is used. By combining the returning standard section and the adjustable top seat, the standard section is easy to remove, and it can be used to return floors of different heights by simply adjusting the number of standard sections or adjusting the height of the adjustable top seat, which is convenient for turnover.

[0004] The utility model discloses a construction elevator foundation return device, which is supported on the bottom floor and returned to the top of the top floor from the bottom. The elevator foundation is arranged above the top floor, and comprises: a return main body, an adjustable top seat fixed to the top of the return main body and used for being placed on the top of the top floor; the return main body comprises a plurality of return standard sections, and the plurality of return standard sections are vertically connected to form the return main body; the adjustable top seat is fixed to the topmost return standard section, and the height of the adjustable top seat is adjustable.

[0005] A further improvement of the utility model is that a pad is provided between the top return body and the bottom floor.

[0006] A further improvement of the utility model is that the adjustable top seat includes: a bracket fixed to the top of the uppermost return standard section, a plug hole being provided on the top of the bracket; an adjustable support inserted into the plug hole with adjustable insertion length; and a horizontal keel fixed to the top of the adjustable support for supporting the top floor.

[0007] A further improvement of the utility model is that the adjustable support includes: a threaded rod; a locking nut screwed on the surface of the threaded rod and used to tighten against the top of the bracket to lock the threaded rod; a support platform fixed to the top of the threaded rod, and the horizontal keel is fixed to the support platform.

[0008] A further improvement of the utility model lies in that high-strength bolts are used to connect between the return top standard sections and between the return top main body and the adjustable top seat.

[0009] A construction elevator foundation return top device of the utility model combines a return top standard section and an adjustable top seat, which is convenient for removing the standard section. Moreover, by only adjusting the number of standard sections or the height of the adjustable top seat, the overall height of the return top device can be adjusted, and it can be used to return top floors of different heights, facilitating turnover use. Brief Description of the Drawings

[0010] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0011] Figure 2 It is a schematic diagram of the return top standard section of the utility model;

[0012] Figure 3 It is a schematic diagram of the split of the adjustable top seat of the utility model;

[0013] Figure 4 It is a top view of the bracket of the utility model;

[0014] In the figure: 1, bottom floor slab; 2, top floor slab; 3, return top main body; 4, adjustable top seat; 5, return top standard section; 6, bracket; 7, adjustable support; 8, horizontal keel; 9, backing plate. Detailed Description of the Embodiment

[0015] Next, the technical solutions in the embodiments of the utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the utility model.

[0016] As Figures 1 to 2 shown, a construction elevator foundation return top device is supported on the bottom floor slab 1 and returns top from below to the top floor slab 2. The elevator foundation is arranged above the top floor slab 2 and includes: a return top main body 3, and an adjustable top seat 4 fixed to the top of the return top main body 3 and used to top against the top floor slab 2; the return top main body 3 includes a plurality of return top standard sections 5, and the plurality of return top standard sections 5 are vertically connected to form the return top main body 3; the adjustable top seat 4 is fixed to the topmost return top standard section 5, and the height of the adjustable top seat 4 is adjustable.

[0017] As Figure 1 shown, a backing plate 9 is also provided between the return top main body 3 and the bottom floor slab 1.

[0018] The backing plate 9 in this embodiment is a steel plate.

[0019] As Figure 3 、 Figure 4As shown in the figure, the adjustable top seat includes: a bracket 6 fixed to the top of the top return standard section 5 at the uppermost part, a jack is provided at the top of the bracket 6, and an adjustable support 7 inserted into the jack with adjustable insertion length; a horizontal keel 8 fixed to the top of the adjustable support 7 and used to support the top floor slab 2.

[0020] Preferably, as Figure 3 , 4 shown in the figure, the adjustable support 7 includes: a threaded rod; a locking nut screwed onto the surface of the threaded rod and used to tightly press against the top of the bracket 6 to lock the threaded rod; a support platform fixed to the top of the threaded rod, and the horizontal keel 8 is fixed to the support platform.

[0021] Preferably, the horizontal keel 8 in this embodiment is selected to be spliced by channel steel. By setting the horizontal keel 8, the concentrated load can be converted into a uniform load.

[0022] Preferably, high-strength bolts are used for connection between the return standard sections 5 and between the return main body 3 and the adjustable top seat 4.

[0023] Preferably, the high-strength bolts in this embodiment are M24 high-strength bolts.

[0024] During use, the floor height and the return support frame are set out and positioned, and the appropriate number of return standard sections 5 are selected according to the floor height. A plurality of return standard sections 5 are successively erected to form a return main body 3. The adjustable base 4 is fixedly connected to the top of the return main body 3. After the connection is completed, the insertion length of the adjustable support 7 is adjusted until the horizontal keel 8 at the top of the adjustable support 7 supports against the bottom surface of the top floor slab 2, and then the return of the construction elevator foundation can be completed.

[0025] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A construction elevator foundation return device, which is supported on the bottom floor and returns to the top floor from below, and the elevator foundation is arranged above the top floor, characterized in that: include: A return top body, and an adjustable top seat fixed to the top of the return top body and used to be installed on the top of the top floor; the return top body includes a plurality of return top standard sections, and the plurality of return top standard sections are vertically connected to form the return top body; the adjustable top seat is fixed to the topmost return top standard section, and the height of the adjustable top seat is adjustable.

2. A construction elevator foundation return device as claimed in claim 1, characterized in that: A pad is also provided between the top return body and the bottom floor.

3. A construction elevator foundation return device as claimed in claim 1, characterized in that: The adjustable top seat includes: a bracket fixed to the top of the uppermost standard section, a plug hole is opened on the top of the bracket; an adjustable support inserted into the plug hole with adjustable insertion length; a horizontal keel fixed to the top of the adjustable support and used to support the top floor.

4. A construction elevator foundation return device as claimed in claim 3, characterized in that: The adjustable support includes: a threaded rod; a locking nut screwed on the surface of the threaded rod and used to tighten against the top of the bracket to lock the threaded rod; a support platform fixed to the top of the threaded rod, and the horizontal keel is fixed to the support platform.

5. A construction elevator foundation return device as claimed in claim 1, characterized in that: The return top standard sections are connected to each other, and the return top main body and the adjustable top seat are connected by high-strength bolts.

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