Detachable formwork for construction of elevator shaft and water-collecting well and anti-floating reinforcing method

Abstract

The invention relates to the field of house building, and discloses a detachable formwork for construction of an elevator shaft and a water-collecting well and an anti-floating reinforcing method.The detachable formwork comprises the following assemblies: a hollow box-shaped formwork composed of a side formwork assembly and a bottom formwork assembly which are connected through concave and convex points; the opposite-pull water stop screw comprises a screw body and a water stop piece, and the screw body penetrates through the side mold assembly and the bottom mold assembly of the hollow box-shaped mold plate and is used for connecting the side mold assembly and the bottom mold assembly in a fastening mode; the adjustable jacking comprises a lead screw and a supporting plate, the lower end of the lead screw is connected with the top of the hollow box-shaped formwork, and the supporting plate is fixed to the lead screw through threads and used for adjusting the supporting height of the top of the formwork. By adopting the light and high-strength box-shaped formwork and a detachable connecting mode, the formwork is more convenient and faster to build and disassemble, the construction efficiency is improved, meanwhile, the stability and accuracy of the formwork can be kept through the fixing effect of the pull water stop screw and the adjustable jacking, and therefore the construction quality is improved.

Description

Technical Field

[0001] The invention relates to the technical field of house construction, in particular to a detachable template and an anti-floating reinforcement method for the construction of an elevator shaft and a water collection shaft. Background Art

[0002] Elevator shafts and water collection wells are common structural forms in modern buildings. Their construction quality and efficiency are directly related to the progress and safety of the entire construction project. In the traditional construction methods of elevator shafts and water collection wells, the construction of formwork and anti-floating reinforcement are key construction links. However, traditional construction methods have shortcomings in many aspects, which are specifically manifested in the following aspects: First, traditional formwork is often constructed with wood or steel materials, which are not only heavy and difficult to carry, but also prone to deformation and damage after repeated use, resulting in low reuse of the formwork and increased construction costs. Secondly, traditional anti-floating reinforcement methods usually rely on setting counterweights at the bottom of the formwork or using chemical grouting. These methods are not only complicated to operate, but also unstable in effect and easily affected by environmental factors. Especially in the case of piles under elevator shafts and water collection wells, traditional anti-floating reinforcement methods are often difficult to effectively fix the formwork, and are prone to problems such as formwork floating and dislocation, affecting construction quality and safety.

[0003] Thirdly, the template disassembly and cleaning process in traditional construction methods is cumbersome, time-consuming and labor-intensive, which reduces construction efficiency. In addition, the traditional templates have a low degree of standardization, and different sizes and shapes of elevator shafts and water collection wells require customized templates, which increases construction preparation time and cost. Summary of the invention

[0004] In view of the shortcomings of the prior art, the present invention provides a detachable formwork and anti-floating reinforcement method for the construction of elevator shafts and water collection wells, which solves the problems of low construction quality and safety and poor efficiency in traditional formwork construction and anti-floating reinforcement methods.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: A detachable template for the construction of an elevator shaft and a water collection well, comprising the following components: a hollow box-shaped template, composed of a side mold component and a bottom mold component, connected by concave and convex points; The pull-to-pull water-stop screw comprises a screw and a water-stop plate, wherein the screw passes through the side mold assembly and the bottom mold assembly of the hollow box-shaped template and is used to fasten and connect the side mold assembly and the bottom mold assembly; The adjustable top support includes a screw rod and a support plate, wherein the lower end of the screw rod is connected to the top of the hollow box-shaped template, and the support plate is fixed to the screw rod by a thread, and is used to adjust the support height of the top of the template; The anti-floating reinforcement component includes a threaded round steel, a gasket, a sleeve and a steel pipe. One end of the threaded round steel is welded to the pile foundation steel bar or connected to the lower steel bar of the bottom mold component through a double hook, and the other end is fixed to the steel pipe through a gasket and a sleeve, and is used for anti-floating reinforcement of the hollow box template.

[0006] Preferably, the hollow box-shaped template is made of aluminum alloy or high-strength plastic, and the side mold assembly and the bottom mold assembly are connected to form a box-shaped structure through concave and convex points.

[0007] Preferably, the water stop plate of the tension water stop screw is located in the middle of the screw and is connected to the side mold assembly and the bottom mold assembly.

[0008] Preferably, the adjustable top support is connected to the top of the template through one end of the screw rod, and the other end passes through the support plate and adjusts the support height through a thread.

[0009] Preferably, the fastening connection mode between the screw rod and the formwork is adapted to the casting height to fix the hollow box-type formwork structure.

[0010] Preferably, the gasket is arranged between the threaded round steel and the sleeve to increase the contact friction resistance.

[0011] Preferably, a plurality of the steel pipes are fixedly sleeved on the outer wall of the sleeve to support the surrounding templates.

[0012] An anti-floating reinforcement method for elevator shaft and water collection well construction comprises the following steps: S1: Determine the size and quantity of the hollow box formwork according to the size and depth of the elevator shaft and the water collection well, and assemble the side formwork assembly and the bottom formwork assembly into a hollow box structure through connectors; S2: Pass the tension water-stop screws through the side formwork assembly and the bottom formwork assembly, and fix the side formwork assembly and the bottom formwork assembly together through the water-stop sheet to form a complete hollow box-shaped formwork; S3: An adjustable top support is set on the top of the hollow box-shaped template, wherein one end of the screw rod is connected to the top of the hollow box-shaped template, and the other end passes through the support plate, and the hollow box-shaped template reaches a predetermined position by adjusting the height of the screw rod; S4: When there are piles under the elevator shaft or water collection shaft, weld one end of the threaded round steel bar to the pile foundation steel bar; when there are no piles, use a double hook to hook the lower steel bar of the bottom mold assembly, and then pass the other end of the threaded round steel bar through the gasket and sleeve in turn, and connect it to the steel pipe; S5: Adjust the position of the threaded round steel on the sleeve according to the well depth so that the steel pipe can support the surrounding template to achieve the purpose of anti-floating reinforcement; S6: Pour concrete in the hollow box formwork. After the concrete solidifies, remove the hollow box formwork and adjustable top support to complete the construction of the elevator shaft and water collection well.

[0013] The present invention provides a detachable formwork and anti-floating reinforcement method for the construction of an elevator shaft and a water collection well. It has the following beneficial effects: 1. The present invention adopts a lightweight and high-strength box-shaped formwork and a detachable connection method, which makes the construction and disassembly of the formwork more convenient and quick, and improves the construction efficiency. At the same time, through the fixing effect of the pull-on water-stop screw and the adjustable top support, the stability and accuracy of the formwork can be maintained, thereby improving the construction quality.

[0014] 2. The box-shaped formwork of the present invention is made of light and high-strength materials, which has high durability and reuse rate, reducing the replacement frequency and cost of the formwork. In addition, the anti-floating reinforcement component is cleverly designed and can be applied to the construction of elevator shafts and water collection wells under different conditions, reducing the demand and cost of customized formwork.

[0015] 3. The anti-floating reinforcement assembly of the present invention adopts the reinforcement method of threaded round steel and sleeve, which makes the anti-floating reinforcement effect more stable and reliable. At the same time, the height of the anti-floating reinforcement assembly can be adjusted according to the depth of the elevator shaft and the water collection well, further improving the flexibility and accuracy of the anti-floating reinforcement.

[0016] 4. The anti-floating reinforcement assembly of the present invention can effectively prevent the formwork from floating or dislocating during the concrete pouring process, thereby avoiding potential safety hazards during the construction process. In addition, the design of the box-shaped formwork and the adjustable top support also takes into account the safety needs of the construction workers, thereby improving the safety during the construction process. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional diagram of the assembled structure of the present invention; Figure 2 It is a schematic diagram of the structure of the pull-to-stop water-stop screw rod of the present invention; Figure 3 It is a schematic diagram of the adjustable jacking structure of the present invention; Figure 4 It is a schematic diagram of the structure of the anti-floating reinforcement assembly of the present invention; Figure 5 It is a schematic diagram of the explosion structure of the hollow box-shaped template module of the present invention; Figure 6 It is a schematic diagram of the structure of the side mold assembly of the present invention; Figure 7 It is a schematic diagram of the structure of the bottom mold assembly of the present invention; Figure 8 It is a schematic diagram of the method steps of the present invention.

[0018] Among them, 1. Hollow box formwork; 2. Pull-type waterstop screws; 201. Screws; 202. Waterstop plates; 3. Adjustable top supports; 301. Screws; 302. Support plates; 4. Anti-floating reinforcement components; 401. Threaded round steel; 402. Gaskets; 403. Sleeves; 404. Steel pipes. DETAILED DESCRIPTION

[0019] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example

[0020] Please refer to the attached Figure 1 The embodiment of the present invention provides a detachable template for the construction of an elevator shaft and a water collection well, including the following components: Please refer to the attached Figure 5 -Attached Figure 7 , the hollow box formwork 1, is composed of a side formwork assembly and a bottom formwork assembly, and is connected by concave and convex points; The hollow box-shaped formwork 1 is composed of a side formwork assembly and a bottom formwork assembly, and is made of a light and high-strength material, such as an aluminum alloy or high-strength plastic, to improve the durability and reusability of the formwork. The side formwork assembly includes a plurality of side formworks, and the side formworks are detachably connected through the "convex and concave" points of the formwork blocks; the bottom formwork assembly includes a plurality of bottom formworks, and the bottom formworks are detachably connected through the "convex and concave" points of the formwork blocks.

[0021] The side formwork components and bottom formwork components are also connected together in a detachable manner through "convex and concave" points, which is convenient for the construction and disassembly of the formwork. As the main supporting structure for the construction of elevator shafts and water collection wells, the box formwork is made of lightweight and high-strength materials, which not only reduces the weight of the formwork and improves the handling efficiency, but also enhances the durability and reuse rate of the formwork.

[0022] The detachable connection between the side formwork assembly and the bottom formwork assembly makes the erection and disassembly of the formwork more convenient and quick.

[0023] In addition, after the components are connected, a square steel tube is placed in the middle of the template component. The size of the middle "groove" is 40*40*2.5mm (height*width*thickness). The setting of the square steel tube further improves the stability of the device and prevents the bottom mold and side mold from "mold expansion".

[0024] The size of the side template component 1-5 / 1-6 of the device of the present invention is 1000*1000*100mm (height*width*thickness), the size of the groove part is 40mm (for placing square steel pipes), and the size of the left and right side connecting mortise and tenon joints is 20*20*40mm; the size of 1-1 / 1-2 is 1000*200*100 (height*width*thickness), and the size of 1-3 / 1-4 is 1000*100*100mm (height*width*thickness); the size of the bottom template component 2-1 is 200*200**100mm (height*width*thickness), the size of the groove part is 40mm, the size of 2-2 is 100*200*100mm (height*width*thickness), the size of 2-3 is 200*200**100mm (height*width*thickness), and the size of the groove part is 40mm; the size of 2-4 is 100*1000*100mm (height*width*thickness) (extended form of 2-2), the size of 2-5 is 1000*1000*100mm (height*width*thickness), and the size of the groove part is 110*90*50mm; the size of 2-6 is 200*1000**100mm (height*width*thickness), and the size of the groove part is 40*50*40mm (extended form of 2-3); the size of 2-7 is 100*1000**100mm (height*width*thickness), and the size of the connecting mortise and tenon is 40*50*40mm; the size of 2-8 is 1000*1000*100mm (height*width*thickness), and the size of the groove part is 40*40*2.5mm (used to place square steel pipes); the size of 2-8 is 200*1000*100mm (height*width*thickness).

[0025] The template of this device has been modeled through various combinations of BIM. The results show that the device of the present invention is suitable for the template construction of water collection wells and elevator foundation pits with a size accurate to 0.1m by assembling the above template combination.

[0026] Please refer to the attached Figure 2 , the pull-type water-stop screw 2 includes a screw 201 and a water-stop sheet 202, the screw 201 passes through the side mold assembly and the bottom mold assembly of the hollow box-shaped template 1, and is used to fasten the side mold assembly and the bottom mold assembly; The tension water-stop screw 2 includes a screw 201 and a water-stop sheet 202. The water-stop sheet 202 is arranged in the middle of the screw 201 to prevent water from penetrating from the gap between the screw 201 and the formwork, and is used to fix the side formwork assembly to ensure that the formwork will not deform or shift during the concrete pouring process. The tightening action of the tension water-stop screw 2 can maintain the stability and accuracy of the formwork, thereby improving the construction quality and efficiency. The tension water-stop screw 2 adopts the size of M16, and the length is selected according to the height of a single concrete pouring.

[0027] Please refer to the attached Figure 3The adjustable top support 3 includes a screw rod 301 and a support plate 302. The lower end of the screw rod 301 is connected to the top of the hollow box-shaped template 1. The support plate 302 is fixed to the screw rod 301 by a thread and is used to adjust the support height of the top of the template; The adjustable top support 3 includes a screw rod 301 and a support plate 302. One end of the screw rod 301 is connected to the top of the box-shaped template, and the other end passes through the support plate 302 and is threadedly connected to the support plate 302. The length of the support can be adjusted by rotating the screw rod 301 to ensure that the template fits tightly with the opening of the elevator shaft and the water collection well to prevent concrete from leaking or overflowing during the pouring process to adapt to elevator shafts and water collection wells of different depths. The adjustable top support 3 is made of Q235 steel and has a size of 600*38*5mm (length*diameter*thickness).

[0028] Please refer to the attached Figure 4 The anti-floating reinforcement component 4 includes a threaded round steel 401, a gasket 402, a sleeve 403 and a steel pipe 404. One end of the threaded round steel 401 is welded to the pile foundation steel bar or connected to the lower steel bar of the bottom mold assembly through a double hook, and the other end is fixed to the steel pipe 404 through a gasket 402 and a sleeve 403, which is used for anti-floating reinforcement of the hollow box template 1.

[0029] The anti-floating reinforcement assembly is a key component in the present invention, which includes a threaded round steel bar 401, a gasket 402, a sleeve 403 and a steel pipe 404. The design is very clever. It can be welded to the pile foundation steel bars or hooked to the lower surface bars of the bottom plate with double hooks to prevent the formwork assembly from floating during the pouring of concrete. It is suitable for the construction of elevator shafts and water collection wells under different conditions. One end of the threaded round steel bar 401 is welded to the pile foundation steel bars or hooked to the lower surface bars of the bottom plate with double hooks, and the other end passes through the gasket 402 and the sleeve 403 in turn and is connected to the steel pipe 404; the gasket 402 is set between the threaded round steel bar 401 and the sleeve 403 to increase the contact area and prevent the threaded round steel bar 401 from loosening; the sleeve 403 is sleeved on the threaded round steel bar 401 and is threadedly connected to the threaded round steel bar 401 to further reinforce the threaded round steel bar 401; the steel pipe 404 is sleeved on the sleeve 403 and is fixedly connected to the sleeve 403 to support the surrounding formwork. The height of threaded round steel 401 is adjusted according to the well depth to adapt to elevator shafts and water collection shafts of different depths, further improving the flexibility and accuracy of construction.

[0030] The anti-floating reinforcement components are made of Q235 steel. The length of the threaded round steel 401 under the bottom template is adjusted according to the thickness of the raft slab, with a diameter of 38mm and a wall thickness of 5mm; the size of the double-bend hook plate is 100*100*5mm (length*width*thickness), which can be made according to the spacing of the steel bars at the bottom of the raft slab; the size of the gasket 402 of the upper template is 100*100*5mm (length*width*thickness); the size of the supporting steel pipe 404 and the sleeve 403 is 48.3*3.25mm (diameter*wall thickness). Example

[0031] Please refer to the attached Figure 8 The embodiment of the present invention provides an anti-floating reinforcement method for the construction of an elevator shaft and a water collection well, comprising the following steps: S1: Determine the size and quantity of the hollow box formwork 1 according to the size and depth of the elevator shaft and the water collection well. Assemble the side formwork assembly and the bottom formwork assembly into a hollow box structure through connectors. During the assembly process, ensure that the concave and convex points are accurately engaged, and the joints of the side formwork assembly and the bottom formwork assembly are tightly fitted to form a closed structure. At the same time, according to the specific construction environment, reinforced support members are preset inside the box to increase the structural stability.

[0032] S2: Pass the tension water-stop screw 2 through the side mold assembly and the bottom mold assembly, and install the water-stop plate 202 in the middle of the screw 201.

[0033] By tightening the nuts at both ends of the screw rod 201, the side mold assembly and the bottom mold assembly are further fixedly connected to form an integral hollow box-shaped template 1. During the tightening process, check the sealing between the water stop 202 and the template to ensure that the concrete slurry will not leak during the pouring process.

[0034] S3: Set the adjustable top support 3 on the top of the hollow box-shaped template 1. During installation, one end of the screw rod 301 is firmly connected to the top of the template through the fixing device, and the other end passes through the support plate 302 and is threadedly connected thereto. By rotating the screw rod 301, adjust its height to ensure that the template as a whole fits tightly with the opening of the elevator shaft and the water collection well, and at the same time adjust the level of the template to avoid tilting or misalignment.

[0035] S4: When there is a pile foundation at the bottom of the elevator shaft or water collection well, fix one end of the threaded round steel bar 401 to the pile foundation steel bar by welding; when there is no pile foundation, use a double hook to hook the lower steel bar of the bottom mold assembly. Then pass the other end of the threaded round steel bar 401 through the gasket 402 and the sleeve 403 in turn to ensure that the contact surface of the gasket 402 is evenly covered to prevent loosening. Finally, fix the threaded round steel bar 401 to the steel pipe 404 and check the stability of the overall reinforcement system.

[0036] S5: Adjust the position of the threaded round steel 401 on the sleeve 403 according to the depth of the elevator shaft and the water collection well, so that the steel pipe 404 is close to and supports the surrounding templates. During the adjustment process, ensure that the contact area between the steel pipe 404 and the template structure is maximized, and optimize the distribution of the steel pipe 404 so that it is evenly distributed around the shaft wall, thereby ensuring that the template is evenly stressed and preventing the template from floating or deforming during the pouring process.

[0037] S6: Pour concrete gradually into the hollow box formwork 1, and construct in layers during the pouring process. The thickness of each layer is kept consistent to avoid excessive pressure at the bottom of the formwork caused by the concentrated weight of the concrete. After the concrete is initially set, check the airtightness between the formwork and the concrete. After the concrete is completely solidified, remove the hollow box formwork 1 and the adjustable top support 3 in turn to ensure that the concrete structure is not damaged when removing the formwork, and complete the construction of the elevator shaft and the water collection well.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A detachable formwork for the construction of an elevator shaft and a water collection well, characterized in that: The invention comprises the following components: a hollow box-shaped template (1), which is composed of a side template component and a bottom template component, and is connected by concave and convex points; The tensioning water-stop screw (2) comprises a screw (201) and a water-stop plate (202), wherein the screw (201) passes through the side mold assembly and the bottom mold assembly of the hollow box-shaped template (1) and is used to fasten the side mold assembly and the bottom mold assembly together; An adjustable top support (3) comprises a screw rod (301) and a support plate (302), wherein the lower end of the screw rod (301) is connected to the top of the hollow box-shaped template (1), and the support plate (302) is fixed to the screw rod (301) via a thread, and is used to adjust the support height of the top of the template; The anti-floating reinforcement component (4) comprises a threaded round steel bar (401), a gasket (402), a sleeve (403) and a steel pipe (404), wherein one end of the threaded round steel bar (401) is welded to the pile foundation steel bar or connected to the lower steel bar of the bottom formwork component via a double hook, and the other end is fixed to the steel pipe (404) via the gasket (402) and the sleeve (403), and is used for anti-floating reinforcement of the hollow box formwork (1).

2. A detachable formwork for the construction of an elevator shaft and a water collection well according to claim 1, characterized in that: The hollow box-shaped template (1) is made of aluminum alloy or high-strength plastic, and the side mold assembly and the bottom mold assembly are connected to form a box-shaped structure via concave and convex points.

3. A detachable formwork for the construction of an elevator shaft and a water collection well according to claim 1, characterized in that: The water stop plate (202) of the tension water stop screw (2) is located in the middle of the screw (201) and is connected to the side mold assembly and the bottom mold assembly.

4. A detachable formwork for the construction of an elevator shaft and a water collection well according to claim 1, characterized in that: The adjustable top support is connected to the top of the template via one end of a screw rod (301), and the other end passes through a support plate (302) and the support height is adjusted via a thread.

5. A detachable formwork for the construction of an elevator shaft and a water collection well according to claim 1, characterized in that: The sleeve (403) is threadedly connected to the threaded round steel (401) and is used to adjust the height of the steel pipe (404).

6. A detachable formwork for the construction of an elevator shaft and a water collection well according to claim 1, characterized in that: The fastening connection method between the screw rod (201) and the template is adapted to the casting height to fix the hollow box-shaped template structure.

7. A detachable formwork for the construction of an elevator shaft and a water collection well according to claim 1, characterized in that: The gasket (402) is arranged between the threaded round steel (401) and the sleeve (403) to increase contact friction resistance.

8. A detachable formwork for the construction of an elevator shaft and a water collection well according to claim 1, characterized in that: The plurality of steel pipes (404) are fixedly sleeved on the outer wall of the sleeve (403) to support the surrounding templates.

9. An anti-floating reinforcement method for elevator shaft and water collection well construction, according to the detachable formwork for elevator shaft and water collection well construction according to any one of claims 1 to 8, characterized in that: The following steps are involved: S1: Determine the size and quantity of the hollow box formwork (1) according to the size and depth of the elevator shaft and the water collection well, and assemble the side formwork assembly and the bottom formwork assembly into a hollow box structure through connectors; S2: passing the tension water-stop screw rod (2) through the side mold assembly and the bottom mold assembly, and fixing the side mold assembly and the bottom mold assembly together through the water-stop plate (202) to form a complete hollow box-shaped template (1); S3: An adjustable top support (3) is arranged on the top of the hollow box-shaped template (1), wherein one end of the screw rod (301) is connected to the top of the hollow box-shaped template (1), and the other end passes through the support plate (302), and the height of the screw rod (301) is adjusted to make the hollow box-shaped template (1) reach a predetermined position; S4: When there are piles under the elevator shaft or the water collection shaft, one end of the threaded round steel (401) is welded to the pile foundation steel bar; when there are no piles, a double hook is used to hook the steel bar at the bottom of the bottom mold assembly, and then the other end of the threaded round steel (401) is passed through the gasket (402) and the sleeve (403) in sequence, and connected to the steel pipe (404); S5: adjusting the position of the threaded round steel (401) on the sleeve (403) according to the well depth, so that the steel pipe (404) can support the surrounding template, thereby achieving the purpose of anti-floating reinforcement; S6: pouring concrete in the hollow box-shaped formwork (1), and after the concrete solidifies, removing the hollow box-shaped formwork (1) and the adjustable top support (301), and completing the construction of the elevator shaft and the water collection well.

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