Post-cast strip back-jacking supporting device

Abstract

The utility model relates to the field of post-cast strip construction, and discloses a post-cast strip back-jacking supporting device which comprises a foundation, a PVC (polyvinyl chloride) pipe is fixedly mounted at the top of the foundation, a formwork is fixedly mounted at the top of the PVC pipe, a beam plate is fixedly mounted at the top of the formwork, a steel bar is fixedly mounted on the side face of the beam plate, and the steel bar is fixedly connected with the PVC pipe. A jacking frame is fixedly installed on the outer side of the PVC pipe, and a support is fixedly installed in the middle of the jacking frame. Due to the fact that the PVC pipe is arranged, the formwork is installed on the top of the PVC pipe, the beam plate is arranged on the top of the formwork, the jacking frame is arranged on the outer side of the PVC pipe to support the bottom of the beam plate, the positions of the formwork and the beam plate are fixed through penetration of the steel bars, the positions of the foundation and the beam plate can be fixed in the construction process, and the formwork and the beam plate can be fixed through the steel bars. The PVC pipe is subjected to concrete pouring through the rectangular groove in the top of the beam plate, so that a back-to-top formwork does not need to be erected for the second time after the formwork is dismantled, and the construction period of repeatedly erecting a back-to-top steel pipe frame can be shortened.

Description

Technical Field

[0001] The utility model relates to the technical field of post-cast belt construction, and more specifically, the utility model relates to a post-cast belt back support device. Background Art

[0002] The traditional post-cast belt formwork support system uses independent supports of steel pipe scaffolds or ring buckle scaffolds, which are reserved when the formwork supports on both sides are demolished. The traditional post-cast belt back support device needs to set up a full hall scaffold, and at the same time, it is necessary to set up a secondary back support after the formwork support is demolished. The measures are complex, and the full hall scaffold affects the material transportation and passage in the basement, affects the early penetration of the mechanical and electrical pipelines in the basement, and restricts the overall construction period. Content of the Utility Model

[0003] In order to overcome the deficiencies of the prior art, the utility model provides a post-cast belt back support device, which has the advantage of reducing the construction period of repeatedly setting up and demolishing the back support steel pipe scaffold.

[0004] To achieve the above object, the utility model provides the following technical solution: a post-cast belt back support device, including a foundation, a PVC pipe is fixedly installed on the top of the foundation, a formwork is fixedly installed on the top of the PVC pipe, a beam and slab are fixedly installed on the top of the formwork, steel bars are fixedly installed on the side of the beam and slab, a back support is fixedly installed on the outside of the PVC pipe, and a support is fixedly installed in the middle of the back support.

[0005] As a preferred technical solution of the utility model, a sub-frame is movably installed inside the back support, a hole is opened in the middle of the sub-frame, and a lead screw is meshingly installed above the back support.

[0006] As a preferred technical solution of the utility model, the steel bar penetrates through the inside of the formwork and the steel bar is installed on the side of the beam and slab.

[0007] As a preferred technical solution of the utility model, a cavity is opened inside the PVC pipe and the top of the PVC pipe is inserted into the bottom of the formwork.

[0008] As a preferred technical solution of the utility model, the surface of the lead screw is threaded and forms a meshing with the part in contact with the back support.

[0009] As a preferred technical solution of the utility model, the rear end of the lead screw is inserted into the inside of the hole.

[0010] As a preferred technical solution of the utility model, the bottom of the sub-frame is inserted into the inside of the back support.

[0011] As a preferred technical solution of the utility model, a rectangular groove is opened on the top of the beam and slab, and the rectangular groove penetrates through the bottom of the beam and slab.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] 1. By setting the PVC pipe in the present utility model, since the formwork is installed on the top of the PVC pipe and the beam-slab is on the top of the formwork, a back support frame is provided on the outer side of the PVC pipe to support the bottom of the beam-slab. The positions of the formwork and the beam-slab are fixed through the penetration of the steel bars. The fixation of the foundation and the beam-slab positions during the construction process can be realized. Through the fixation of the formwork and the beam-slab by the steel bars, concrete is poured into the PVC pipe through the rectangular groove on the top of the beam-slab. Thus, it is not necessary to re-erect the back support formwork after the formwork is removed, and the construction period of repeatedly erecting the back support steel pipe frame can be reduced.

[0014] 2. By setting the sub-frame in the present utility model, since the sub-frame is inserted into the inside of the back support frame and the holes are opened inside the sub-frame, the distance of the sub-frame is adjusted up and down inside the back support frame. Since the lead screw meshes with the back support frame, the lead screw is inserted into the holes through the rotation of the lead screw to realize the fixation of the sub-frame inside the back support frame. Reversing the lead screw releases the fixation between the back support frame and the sub-frame. Thus, when the lengths of the PVC pipes are different, the heights of the back support frame and the sub-frame can be flexibly adjusted to support the bottom of the beam-slab. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0016] Figure 2 is a schematic diagram of the formwork structure of the present utility model;

[0017] Figure 3 is a schematic diagram of the PVC pipe structure of the present utility model;

[0018] Figure 4 is a schematic diagram of the back support frame structure of the present utility model;

[0019] Figure 5 is a schematic diagram of the lead screw structure of the present utility model.

[0020] In the figure: 1, foundation; 2, PVC pipe; 3, formwork; 4, beam-slab; 5, steel bar; 6, back support frame; 7, support; 8, sub-frame; 9, hole; 10, lead screw. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0022] Such asFigures 1 to 5 As shown in the figure, the utility model provides a post-cast belt back-to-top support device, which includes a foundation 1. A PVC pipe 2 is fixedly installed on the top of the foundation 1. A formwork 3 is fixedly installed on the top of the PVC pipe 2. A beam-slab 4 is fixedly installed on the top of the formwork 3. A steel bar 5 is fixedly installed on the side of the beam-slab 4. A back-to-top frame 6 is fixedly installed on the outside of the PVC pipe 2. A support 7 is fixedly installed in the middle of the back-to-top frame 6.

[0023] By setting the PVC pipe 2, since the formwork 3 is installed on the top of the PVC pipe 2 and the beam-slab 4 is on the top of the formwork 3, the bottom of the beam-slab 4 is supported by the back-to-top frame 6 arranged on the outside of the PVC pipe 2. The positions of the formwork 3 and the beam-slab 4 are fixed through the penetration of the steel bar 5, so that the positions of the foundation 1 and the beam-slab 4 can be fixed during the construction process. Through the fixation of the formwork 3 and the beam-slab 4 by the steel bar 5, concrete is poured into the PVC pipe 2 through the rectangular groove on the top of the beam-slab 4, thus eliminating the need for secondary erection of the back-to-top formwork after the formwork is removed, and reducing the construction period of repeatedly erecting the back-to-top steel pipe frame.

[0024] Among them, a sub-frame 8 is movably installed inside the back-to-top frame 6. A hole 9 is opened in the middle of the sub-frame 8. A lead screw 10 is meshingly installed above the back-to-top frame 6;

[0025] By setting the sub-frame 8, since the sub-frame 8 is inserted inside the back-to-top frame 6 and the hole 9 is opened inside the sub-frame 8, the distance of the sub-frame 8 inside the back-to-top frame 6 is adjusted up and down. Since the lead screw 10 meshes with the back-to-top frame 6, the lead screw 10 is inserted into the hole 9 through the rotation of the lead screw 10 to fix the sub-frame 8 inside the back-to-top frame 6. Reversing the lead screw 10 releases the fixation between the back-to-top frame 6 and the sub-frame 8, so that when the length of the PVC pipe 2 is different, the heights of the back-to-top frame 6 and the sub-frame 8 can be flexibly adjusted to support the bottom of the beam-slab 4.

[0026] Among them, the steel bar 5 penetrates through the inside of the formwork 3 and the steel bar 5 is installed on the side of the beam-slab 4;

[0027] By setting the steel bar 5 to penetrate through the inside of the formwork 3 and the steel bar 5 is installed on the side of the beam-slab 4, the positions of the formwork 3 and the beam-slab 4 can be fixed through the penetration of the steel bar 5.

[0028] Among them, a cavity is opened inside the PVC pipe 2 and the top of the PVC pipe 2 is inserted into the bottom of the formwork 3;

[0029] By setting a cavity inside the PVC pipe 2 and the top of the PVC pipe 2 is inserted into the bottom of the formwork 3, it can be realized that through the fixation of the formwork 3 and the beam-slab 4 by the steel bar 5, concrete is poured into the PVC pipe 2 through the rectangular groove on the top of the beam-slab 4.

[0030] Among them, the surface of the lead screw 10 is threaded and forms a meshing with the contact part of the back-to-top frame 6;

[0031] By setting the surface of the lead screw 10 to be threaded and forming meshing with the contact part of the back-driving frame 6, the rotation of the lead screw 10 can insert the lead screw 10 into the inside of the hole 9, and the fixing of the sub-frame 8 inside the back-driving frame 6 can be realized. At the bottom of the back-driving frame 6, there is a stud that can move up and down to level the back-driving frame 6.

[0032] Among them, the rear end of the lead screw 10 is inserted into the inside of the hole 9;

[0033] By setting the rear end of the lead screw 10 to be inserted into the inside of the hole 9, the rotation of the lead screw 10 can insert the lead screw 10 into the inside of the hole 9, and the fixing of the sub-frame 8 inside the back-driving frame 6 can be realized.

[0034] Among them, the bottom of the sub-frame 8 is inserted into the inside of the back-driving frame 6;

[0035] By setting the bottom of the sub-frame 8 to be inserted into the inside of the back-driving frame 6, the rotation of the lead screw 10 in reverse can release the fixation between the back-driving frame 6 and the sub-frame 8, so that when the length of the PVC pipe 2 is different, the heights of the back-driving frame 6 and the sub-frame 8 can be flexibly adjusted.

[0036] Among them, a rectangular groove is opened at the top of the beam-slab 4, and the rectangular groove penetrates through the bottom of the beam-slab 4.

[0037] By setting a rectangular groove at the top of the beam-slab 4 and the rectangular groove penetrating through the bottom of the beam-slab 4, the fixation of the positions of the foundation 1 and the beam-slab 4 during the construction process can be realized, and the formwork 3 and the beam-slab 4 are fixed by the steel bars 5.

[0038] Concrete is poured into the PVC pipe 2 through the rectangular groove at the top of the beam-slab 4.

[0039] The working principle and usage process of the present utility model:

[0040] Set the PVC pipe 2. Since the formwork 3 is installed on the top of the PVC pipe 2 and the beam-slab 4 is on the top of the formwork 3, the bottom of the beam-slab 4 is supported by arranging a back-driving frame 6 on the outside of the PVC pipe 2, and the positions of the formwork 3 and the beam-slab 4 are fixed by the penetration of the steel bars 5. The fixation of the positions of the foundation 1 and the beam-slab 4 during the construction process can be realized, and the formwork 3 and the beam-slab 4 are fixed by the steel bars 5. Concrete is poured into the PVC pipe 2 through the rectangular groove at the top of the beam-slab 4. Thus, there is no need to re-erect the back-top formwork after the formwork is removed, and the construction period of repeatedly erecting the back-top steel pipe frame can be reduced.

[0041] Since the sub-frame 8 is inserted inside the backstop frame 6 and the hole 9 is opened inside the sub-frame 8, the distance of the sub-frame 8 is adjusted up and down inside the backstop frame 6. Since the lead screw 10 meshes with the backstop frame 6, inserting the lead screw 10 inside the hole 9 by rotating the lead screw 10 can fix the sub-frame 8 inside the backstop frame 6. Reversing the rotation of the lead screw 10 releases the fixation between the backstop frame 6 and the sub-frame 8, so that when the lengths of the PVC pipes 2 are different, the heights of the backstop frame 6 and the sub-frame 8 can be flexibly adjusted to support the bottom of the beam slab 4.

[0042] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0043] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A post-cast belt back-top support device, comprising a foundation (1), characterized in that: A PVC pipe (2) is fixedly installed at the top of the foundation (1), a formwork (3) is fixedly installed at the top of the PVC pipe (2), a beam-slab (4) is fixedly installed at the top of the formwork (3), a steel bar (5) is fixedly installed on the side of the beam-slab (4), a back support frame (6) is fixedly installed on the outer side of the PVC pipe (2), and a support (7) is fixedly installed in the middle of the back support frame (6).

2. The post-cast belt back-to-top support device according to claim 1, characterized in that: A sub-frame (8) is movably installed inside the back support frame (6), a hole (9) is formed in the middle of the sub-frame (8), and a lead screw (10) is meshingly installed above the back support frame (6).

3. The post-cast belt back-to-top support device according to claim 1, characterized in that: The steel bar (5) penetrates through the inside of the formwork (3) and the steel bar (5) is installed on the side of the beam-slab (4).

4. The post-cast strip back-top support device according to claim 2, characterized in that: A cavity is formed inside the PVC pipe (2), and the top of the PVC pipe (2) is inserted into the bottom of the formwork (3).

5. The post-cast belt back-to-top support device according to claim 2, characterized in that: The surface of the lead screw (10) is threaded and forms a meshing with the part in contact with the back support frame (6).

6. The post-cast belt top support device according to claim 2, characterized in that: The rear end of the lead screw (10) is inserted into the inside of the hole (9).

7. The post-cast belt back-top support device according to claim 2, wherein: The bottom of the sub-frame (8) is inserted into the inside of the back support frame (6).

8. The post-cast belt back-top support device according to claim 1, characterized in that: A rectangular groove is formed at the top of the beam-slab (4), and the rectangular groove penetrates through the bottom of the beam-slab (4).

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