Novel adjustable water-collecting well anti-floating device

Abstract

The utility model discloses a novel adjustable water-collecting well anti-floating device, which belongs to the field of building engineering water-collecting well construction and comprises a reinforced foundation, a fixing device is fixedly mounted in the reinforced foundation, the top of the fixing device is movably connected with a reinforced steel pipe, and the left end and the right end of the reinforced steel pipe are fixedly connected to a template frame. The fixing device comprises a main reinforcing steel bar, a transverse connecting sleeve is installed on the outer portion of the main reinforcing steel bar in a threaded mode, a fixing steel plate is inserted into the outer portion of the main reinforcing steel bar, and a nut is installed on the outer portion of the main reinforcing steel bar in a threaded mode. The jacking device has the advantages that the distance between the main body steel bars and the height of the jacking device can be freely adjusted through the transverse connecting sleeve and the adjustable sleeve, the jacking device can adapt to reinforcing construction of water collecting well formworks of different working condition sizes, and the jacking device is matched with the jacking device to reinforce reinforcing steel pipes to improve the overall structural strength of a formwork frame.

Description

Technical Field

[0001] This utility model relates to the field of construction of water collection wells in building engineering, and more specifically, to a novel adjustable anti-buoyancy device for water collection wells. Background Technology

[0002] With the acceleration of urbanization, the development and utilization of underground space is becoming increasingly widespread. As an important component of underground structures, sump pits and elevator shafts play a crucial role. The common shape of the foundation base of elevator shafts and sump pits is generally trapezoidal, forming a high-low span structure with the foundation raft. The junction of the high-low span foundation pit adopts a natural slope. Since the elevator shaft and sump pit are cast integrally with the foundation raft during foundation construction, the formwork of the shaft wall adopts an integral suspended formwork structure. The design depth of elevator shafts is generally more than 1.5m, and the depth of sump pits is even greater. During the cast-in-place construction of the underground structure of elevator shafts and sump pits in multi-story buildings, due to the suspended formwork structure of the shaft wall and the buoyancy of the concrete, the formwork is likely to float. The floated formwork and reinforcing bars cannot be restored to their original position, and the concrete must be removed and recast, causing serious engineering accidents and high rework costs. This is a critical link that cannot be ignored in the construction of high-rise building foundation engineering, which not only relates to the safety during the construction process, but also directly affects the project quality and the later use effect.

[0003] In existing technologies, steel bars with a diameter of not less than 6mm are pre-embedded in the foundation pit cushion layer, with a longitudinal and transverse spacing of not more than 600mm. The ends of the steel bars are connected to the formwork with M14 threaded rods by welding, and reinforced with bolts and steel pipes. Traditional construction methods cannot ensure a firm connection between the steel bars and the formwork, resulting in the possibility of formwork bursting, which is difficult to repair and is not conducive to standardized construction and high-quality development of structural engineering. For example, CN116220112A discloses a device and construction method for preventing the formwork of elevator shafts and sump pits from floating. The device includes a precast reinforced concrete slab with pre-reserved connecting bolts and lifting rings. The box-shaped formwork has reinforcing plates on the side and bottom forms fixedly connected by corner reinforcements. Two diagonal corner reinforcements are connected by a main beam, and two opposite reinforcement plates are reinforced by multiple horizontal braces. The bottom formwork is connected to the precast reinforced concrete slab by connecting bolts and tie rods. This type of method can quickly install the formwork, but the use of connecting bolts and tie rods for fixing makes it difficult to withstand the impact load during concrete pouring. Utility Model Content

[0004] To overcome the insufficient strength of pre-embedded steel bars and tie templates in the existing technology, this utility model provides a new type of adjustable water collection well anti-buoyancy device, including a reinforced foundation, a fixing device fixedly installed inside the reinforced foundation, a reinforcing steel pipe movably connected to the top of the fixing device, and both ends of the reinforcing steel pipe being fixedly connected to the template frame.

[0005] The fixing device includes a main reinforcing bar, a transverse connecting sleeve installed on the external thread of the main reinforcing bar, a fixing steel plate inserted into the outside of the main reinforcing bar, a nut installed on the external thread of the main reinforcing bar, a washer provided on the top of the fixing steel plate, an adjustable sleeve threaded to the top of the main reinforcing bar, a top support adjusting screw installed on the internal thread of the adjustable sleeve, and a top support fixedly installed on the top of the top support adjusting screw.

[0006] Preferably, the main reinforcing bar is L-shaped, and both ends of the main reinforcing bar have threads on their outer walls.

[0007] It can be disassembled and assembled to achieve width and height adjustment, making it highly adaptable.

[0008] Preferably, a water-stop ring is fixedly installed on the outer wall of the main reinforcing steel bar.

[0009] Preferably, the fixed steel plate has a hollow groove inside, and the top of the main reinforcing bar passes through the hollow groove and extends to the top of the fixed steel plate to be threadedly connected to the nut.

[0010] Preferably, the washer is movably installed on the top outer wall of the main reinforcing bar, and the washer is attached to the bottom of the nut.

[0011] Preferably, the adjustable sleeve has a threaded connection groove inside, and the shape of the threaded connection groove is adapted to the main steel bar and the top support adjusting screw.

[0012] The scaling distance of the top support adjusting screw can be adjusted through the threaded connection groove, thereby changing the position of the top support and the reinforcing steel pipe.

[0013] Preferably, the top support is C-shaped.

[0014] The C-shaped top support can support the reinforced steel pipe.

[0015] Preferably, the number of reinforcing steel pipes is five, and the top support is inserted into the bottom reinforcing steel pipe.

[0016] Beneficial effects:

[0017] The beneficial effects of adopting the technical solution of this utility model are as follows:

[0018] (1) The spacing of the main steel bars and the height of the top support can be freely adjusted by the horizontal connecting sleeve and the adjustable sleeve. It can adapt to the reinforcement construction of the water collection well formwork of different working conditions. The top support reinforces the steel pipe and improves the overall structural strength of the formwork frame. Compared with the pre-embedded steel bars, the U-shaped main steel bars and the C-shaped top support have greater strength and stronger integrity in connecting the formwork, avoiding problems such as bursting, floating and deformation due to excessive impact load during concrete pouring.

[0019] (2) Due to the use of a detachable assembly structure, the number and horizontal spacing of the main steel bars can be arranged in a flexible manner according to the size of the water collection well, thereby saving material waste caused by factors such as bursting and floating, reducing construction costs, and improving construction progress. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the fixing device of this utility model;

[0023] Figure 3 This is an exploded view of the structure of the fixing device of this utility model.

[0024] In the diagram: 1. Reinforced foundation; 2. Fixing device; 20. Main reinforcing steel; 21. Horizontal connecting sleeve; 22. Water-stop ring; 23. Fixing steel plate; 24. Gasket; 25. Nut; 26. Adjustable sleeve; 27. Top support adjusting screw; 28. Top support; 3. Reinforcing steel pipe; 4. Formwork frame. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to represent selected embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0026] This implementation method is successful. The specific implementation method is as follows:

[0027] like Figures 1 to 3As shown, a novel adjustable water collection well anti-buoyancy device is described. In this embodiment 1, when installing the fixing device 2, a fixing device 2 of matching size is first customized according to the size of the water collection well and the thickness of the bottom plate of the water collection well. The main steel bar 20 of the appropriate size and the transverse connecting sleeve 21 are pre-embedded in the cushion layer of the reinforced foundation 1. After the reinforced foundation 1 hardens, the template frame 4 is laid.

[0028] In addition, the template frame 4 is a reinforced structure composed of timber and tied steel bars, which is laid along the inner wall of the sump. At the same time, the two ends of the reinforcing steel pipe 3 are fixedly connected to the inner wall of the template frame 4, so that the template frame 4 obtains horizontal rigid support. It should be noted that the number of reinforcing steel pipes 3 is not fixed and is determined according to the size of the sump.

[0029] like Figures 1 to 3 As shown, in this embodiment 2, since the bottom of the main steel bar 20 and the connecting sleeve 21 are pre-embedded and fixed inside the reinforced foundation 1, the adjustable range is changed to the vertical height. First, the top of the main steel bar 20 passes through the fixed steel plate 23 and nut 25 and extends into the interior of the adjustable sleeve 26. At the same time, the adjustment distance of the top support adjusting screw 27 is determined according to the position of the bottom reinforced steel pipe 3. By rotating the top support adjusting screw 27, the top support 28 is displaced to be inserted into the bottom reinforced steel pipe 3 to form a connection.

[0030] After the top support 28 is connected to the reinforcing steel pipe 3, the template frame 4 is simultaneously reinforced in both vertical and horizontal directions by the fixing device 2 and the reinforcing steel pipe 3, which can significantly improve the anti-buoyancy effect during the subsequent pouring of concrete along the template frame 4.

[0031] It should be noted that the dimensions of the transverse connecting sleeve 21 and the adjustable sleeve 26 are not fixed, and different lengths can be selected according to actual needs to meet different requirements.

[0032] Working principle: The main steel bar 20 forms a U-shaped structure after being connected to the transverse connecting sleeve 21. Combined with the fixing steel plate 23 and nuts 25 and other accessories, it can form an anti-floating system. The U-shaped structure can better combine with various filling timbers, further improving the structural stability. In use, first determine the area of ​​the reinforced foundation 1 according to the size of the water collection well. At the same time, install the corresponding number of fixing devices 2 at equal intervals according to the area. The main steel bar 20 is assembled from two main steel bars 20 and the connecting sleeve 21 to form a U-shaped structure and is pre-embedded inside the reinforced foundation 1. After the reinforced foundation 1 is completed, the reinforcing steel pipe 3 is installed according to the template frame 4 to provide horizontal support. At the same time, the top support 28 is adjusted according to the bottom reinforcing steel pipe 3. The top support adjusting screw 27 is rotated inside the adjustable sleeve 26 to adjust the top support 28 to rise or fall. The top support 28, which is in the shape of a "C", is connected to the bottom reinforcing steel pipe 3. Finally, concrete is poured according to the template frame 4 to form the structure. This can effectively prevent the template from bursting, floating and deforming.

[0033] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A novel adjustable anti-flooding device for water collecting well, characterized in that, Including the reinforcement foundation (1), the inside fixed installation of the reinforcement foundation (1) is fixedly connected with the fixed device (2), the top of the fixed device (2) is movably connected with the reinforced steel pipe (3), and the left and right ends of the reinforced steel pipe (3) are fixedly connected with the formwork frame (4); The fixed device (2) comprises a main body steel bar (20), a transverse connecting sleeve (21) is screw mounted outside the main body steel bar (20), a fixed steel plate (23) is inserted outside the main body steel bar (20), a nut (25) is screw mounted outside the main body steel bar (20), a gasket (24) is arranged on the top of the fixed steel plate (23), an adjustable sleeve (26) is screw connected on the top of the main body steel bar (20), a top support adjusting screw (27) is screw mounted inside the adjustable sleeve (26), and a top support (28) is fixedly installed on the top of the top support adjusting screw (27).

2. A novel adjustable anti-floating device for water-collecting well according to claim 1, characterized in that, The shape of the main body steel bar (20) is "L" type, and the outer wall of the two ends of the main body steel bar (20) is provided with a thread.

3. A novel adjustable anti-float device for water collection well as claimed in claim 2 wherein, The outer wall of the main body steel bar (20) is fixedly installed with a water stop ring (22).

4. A novel adjustable anti-float device for water collection well as claimed in claim 3 wherein, The inside of the fixed steel plate (23) is provided with a hollow groove, and the top of the main body steel bar (20) penetrates through the hollow groove and extends to the top of the fixed steel plate (23) and is screw connected with the nut (25).

5. A novel adjustable anti-float device for water sump according to claim 4, wherein, The gasket (24) is movably installed on the top outer wall of the main body steel bar (20), and the gasket (24) is attached to the bottom of the nut (25).

6. A novel adjustable anti-float device for water collection well as claimed in claim 1 wherein, The inside of the adjustable sleeve (26) is provided with a screw connection groove, and the shape of the screw connection groove is matched with the main body steel bar (20) and the top support adjusting screw (27).

7. A novel adjustable anti-float device for water collection well as claimed in claim 6 wherein, The shape of the top support (28) is "C" type.

8. A novel adjustable anti-float device for water collection well as claimed in claim 7 wherein, The number of the reinforced steel pipe (3) is five, and the top support (28) is inserted with the bottom reinforced steel pipe (3).

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