A type of embedded waterstop positioning device

Abstract

This utility model discloses a recessed waterstop positioning device, relating to the field of urban utility tunnel equipment technology. It includes a wooden box body, small square timber beams, and a large steel pipe beam. The wooden box body has an upper and lower layer, with the waterstop body positioned between the two layers. Small square timber beams are vertically positioned on the outer side of the wooden box body, and a large steel pipe beam is horizontally installed on the outer side of the small square timber beams. A butterfly-buckle tie rod runs through the wooden box body. Pre-drilled holes are provided on both the small square timber beams and the large steel pipe beam. A leveling wooden template is placed between the wooden box body and the waterstop body. This recessed waterstop positioning device, by covering the entire cross-section of the waterstop body with the wooden box body, changes the fixation from point contact to surface contact, reducing the problem of the waterstop body rotating around the contact point. The small square timber beams and the large steel pipe beam prevent the waterstop body from shifting outward, ensuring it is installed in place in one go and reducing repeated adjustments.

Description

Technical Field

[0001] This utility model relates to the field of urban utility tunnel equipment technology, specifically to a centrally embedded waterstop positioning device. Background Technology

[0002] In traditional construction of urban utility tunnel expansion joints, embedded rubber waterstops are typically secured by clamping them between the top and bottom using an "end mold + square timber backing". This method has significant drawbacks:

[0003] Insufficient installation accuracy: When the end mold clamps the waterstop, only one point contacts the waterstop, causing the waterstop to rotate around the contact point with the mold, resulting in horizontal tilting of the waterstop. During the installation and fixing of the mold, this causes the waterstop to shift back and forth, resulting in misalignment at the expansion joint section. Furthermore, after the mold is installed, the left and right positions of the waterstop need to be readjusted to center it.

[0004] Displacement caused by pouring: During the pouring process, the waterstop is fixed at only one point and there are no measures to limit its lateral displacement, which may cause the waterstop to deviate.

[0005] Poor structural stability: The method of fixing with single formwork panels and square timber results in inconsistent installation outcomes each time, leading to low installation quality stability that depends entirely on the worker's skill. Furthermore, the breakage rate of single formwork panels is relatively high, making long-term reuse impossible.

[0006] Current positioning measures for embedded rubber waterstops are not systematic or comprehensive enough, and existing research lacks an integrated design for end formwork and positioning. With the further advancement of urbanization and the increasing number of utility tunnel renovation and optimization projects in old urban areas, the demands for standardization and high-quality construction of utility tunnels are rising. Therefore, there is an urgent need for an integrated design device that combines sealing and positioning to improve the installation quality of waterstops.

[0007] Therefore, we propose a centrally embedded waterstop positioning device to solve the problems mentioned above. Utility Model Content

[0008] The purpose of this utility model is to provide a positioning device for embedded waterstops, so as to solve the problem mentioned in the background art that the current positioning measures for embedded rubber waterstops on the market are not systematic and comprehensive enough, and the existing results do not have an integrated design for the end template and positioning.

[0009] To achieve the above objectives, this utility model provides the following technical solution: a centrally embedded waterstop positioning device, comprising a wooden box body, square timber beams, and steel pipe beams. The wooden box body is a box structure with upper and lower layers. A waterstop body is disposed between the wooden box bodies. Square timber beams are vertically disposed on the outer side of the wooden box body, and steel pipe beams are horizontally installed on the outer side of the square timber beams. A butterfly buckle rod passes through the wooden box body. Pre-drilled holes are provided on both the square timber beams and the steel pipe beams. A leveling wooden template is disposed between the wooden box body and the waterstop body.

[0010] Preferably, the waterstop body includes an upper half-circle waterstop and a lower half-circle waterstop, and the upper half-circle waterstop and the lower half-circle waterstop are connected by a central ring.

[0011] With the above structural design, the waterstop body is divided into an upper half-circle waterstop and a lower half-circle waterstop, which are connected by a central ring. This structure meets the construction requirements of expansion joints and can form a complete sealing structure at the expansion joint, thereby improving the reliability of waterproofing.

[0012] Preferably, the wooden box body is provided with wooden mold ribs inside, and multiple wooden mold ribs are provided.

[0013] The above structural design enhances the structural strength and stability of the box, effectively preventing deformation of the box during concrete pouring, thus ensuring the positioning accuracy of the waterstop body and extending the service life of the wooden box.

[0014] Preferably, the length of the wooden box body is the width of the box culvert structure, the height is the thickness of the top and bottom plates of the box culvert structure minus half the thickness of the central ring of the waterstop body, and the width is half the width of the waterstop body plus the width of the expansion joint.

[0015] With the above structural design, the dimensions of the wooden box are customized according to the parameters of the culvert structure and the waterstop body, which can ensure precise fit with the expansion joint and the waterstop body, realize the centering of the waterstop body in the expansion joint section, and improve the standardization of construction.

[0016] Preferably, the spacing between the square timber beams is 500mm, and the steel pipe beams are steel pipes with a diameter of 48mm.

[0017] The above structural design forms a robust support system that can limit the outward displacement of the waterstop body, effectively resist the impact force during concrete pouring, and reduce the risk of waterstop body displacement.

[0018] Preferably, the leveling wooden template is 1cm thick and is positioned between the central ring of the wooden box body and the waterstop body.

[0019] The above structural design can prevent the ring from being squeezed and deformed, ensure the structural integrity of the waterstop body, and ensure that its waterproof function is performed normally.

[0020] Preferably, the waterstop reinforcement bars are provided in the culvert steel reinforcement structure surrounding the waterstop body.

[0021] The above structural design enhances the structural strength of the installation area of ​​the waterstop and, in conjunction with the positioning device, improves the overall construction quality and structural safety.

[0022] Compared with the prior art, the beneficial effects of this utility model are: the embedded waterstop positioning device:

[0023] 1. Improved positioning accuracy: Traditional waterstop positioning involves point-to-point contact and fixation between a single template and the waterstop. This device uses a wooden box to cover the entire cross-section of the waterstop body, changing the point contact to a surface contact fixation, reducing the problem of the waterstop body rotating around the contact point. The square timber beams and steel pipe beams can prevent the waterstop body from shifting outward, allowing it to be installed in place in one go and reducing repeated adjustment steps.

[0024] 2. Reduce construction errors: Traditional positioning methods are prone to causing the waterstop to shift during concrete pouring. The surface contact fixing method of this device and the limiting effect of the square timber beams and steel pipe beams have a stronger ability to resist displacement caused by pouring, effectively reducing the positional error during pouring.

[0025] 3. Improve structural stability: The single template is optimized into a wooden box structure with wooden formwork ribs inside and square timber beams and steel pipe beams on the outside for fixation. This greatly improves construction stability and reduces the likelihood of formwork bulging or bursting. Standardized wooden box structures can be customized in advance to ensure uniform installation results for each segment, improve standardization and installation efficiency, and make the wooden box structure more durable, thus increasing the turnover rate of the template. Attached Figure Description

[0026] Figure 1 This is a diagram showing the installation layout of the waterstop strip on the bottom plate of the box culvert according to this utility model.

[0027] Figure 2 This is a diagram showing the installation layout of the waterstop strip on the top slab of the box culvert according to this utility model.

[0028] Figure 3 This is a detailed installation drawing of the waterstop and positioning device of this utility model;

[0029] Figure 4 This is a detailed elevation view of the positioning device of this utility model.

[0030] In the diagram: 1. Wooden box body; 2. Waterstop body; 201. Upper half of the waterstop; 202. Lower half of the waterstop; 3. Square timber beam; 4. Steel pipe beam; 5. Butterfly buckle tie rod; 6. Flat wooden formwork; 7. Wooden formwork ribs; 8. Waterstop reinforcing ribs. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Please see Figures 1-4This utility model provides a technical solution: a centrally embedded waterstop positioning device, comprising a wooden box body 1, a waterstop body 2, an upper half-circle waterstop 201, a lower half-circle waterstop 202, a square timber beam 3, a steel pipe beam 4, a butterfly buckle tie rod 5, a leveling wooden template 6, a wooden template rib 7, and a waterstop reinforcing rib 8. The wooden box body 1 is a box structure with upper and lower layers, and the waterstop body 2 is disposed between the wooden box body 1. The waterstop body 2 includes an upper half-circle waterstop 201 and a lower half-circle waterstop 202, which are connected by a central ring. The waterstop body 2 is divided into... The upper half-circle waterstop 201 and the lower half-circle waterstop 202 are connected by a central ring. This structure meets the construction requirements of expansion joints and can form a complete sealing structure at the expansion joint, thereby improving the reliability of waterproofing. Square timber beams 3 are vertically installed on the outer side of the wooden box body 1, and steel pipe beams 4 are horizontally installed on the outer side of the square timber beams 3. Butterfly buckle tie rods 5 pass through the wooden box body 1. Pre-drilled holes are provided on both the square timber beams 3 and the steel pipe beams 4. Wooden formwork ribs 7 are provided inside the wooden box body 1, and multiple wooden formwork ribs 7 are provided to enhance the structural strength and stability of the box body, effectively preventing deformation of the box body during concrete pouring, thus ensuring the waterstop. The positioning accuracy of the main body 2 is improved, while extending the service life of the wooden box body 1. The length of the wooden box body 1 is the width of the box culvert structure, the height is the thickness of the top and bottom plates of the box culvert structure minus half the thickness of the central ring of the waterstop body 2, and the width is half the width of the waterstop body 2 plus the width of the expansion joint. The dimensions of the wooden box body 1 are customized according to the parameters of the box culvert structure and the waterstop body 2, ensuring precise fit with the expansion joint and the waterstop body 2, achieving centered positioning of the waterstop body 2 in the expansion joint section, and improving the standardization of construction. The square timber beams 3 are spaced at 500mm intervals, and the steel pipe beams 4 are 48mm diameter steel pipes, forming a solid support system. The waterstop body 2 can be restricted from moving outward, effectively resisting the impact force during concrete pouring and reducing the risk of waterstop body 2 deviating. The 1cm thick wooden template 6 is placed between the wooden box body 1 and the central ring of the waterstop body 2 to prevent the ring from being squeezed and deformed, ensuring the structural integrity of the waterstop body 2 and ensuring its normal waterproofing function. The wooden template 6 is placed between the wooden box body 1 and the waterstop body 2. The waterstop reinforcing bars 8 are set in the culvert steel structure around the waterstop body 2 to enhance the structural strength of the installation part of the waterstop body 2. Together with the positioning device, it improves the overall construction quality and structural safety.

[0033] Working principle: When using this embedded waterstop positioning device, firstly, after the reinforcing steel bars at the end of the box culvert are tied, install the waterstop body 2 and the wooden box 1; place the lower wooden box on the positioning point of the box culvert structure and fix it to the pad layer with iron nails; add a 1cm thick leveling wooden template 6 on the lower wooden box, and lay the waterstop body 2, so that the outer edge of the waterstop body 2 coincides with the edge line of the lower wooden box, and the upper half of the waterstop 201 and the lower half of the waterstop 202 are extended upward and suspended on the box culvert reinforcement; lay the waterstop body 2 on top of the waterstop body 2. A 1cm thick wooden template 6 is installed, with its outer edge aligned with the waterstop body 2 and its inner edge aligned with the outer edge of the central ring. A wooden box is then installed, with its outer edge aligned and its inner edge pressing against the central ring. The inner and outer wooden boxes for the side walls are then installed, aligning all contour lines. Vertical square wooden beams 3 spaced 50cm apart are installed on the outside of the wooden box body 1. Two horizontal steel pipe beams 4 are then installed, with butterfly buckle rods 5 passing through pre-drilled holes and secured to the outer steel pipe beams 4 using butterfly buckles. Finally, the nuts are tightened to secure the work, thus completing the series of steps. Content not described in detail in this specification belongs to existing technology known to those skilled in the art.

[0034] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A positioning device for a recessed waterstop, comprising a wooden box body (1), a wooden beam (3) and a steel pipe beam (4), characterized in that: The wooden box body (1) is a box structure, and the wooden box body (1) is provided with upper and lower layers. A waterstop body (2) is provided between the wooden box bodies (1). A square wooden beam (3) is vertically provided on the outside of the wooden box body (1), and a steel pipe beam (4) is horizontally installed on the outside of the square wooden beam (3). A butterfly buckle rod (5) runs through the wooden box body (1). Pre-reserved holes are opened on both the square wooden beam (3) and the steel pipe beam (4). A leveling wooden template (6) is provided between the wooden box body (1) and the waterstop body (2).

2. The embedded waterstop positioning device according to claim 1, characterized in that: The waterstop body (2) includes an upper half-circle waterstop (201) and a lower half-circle waterstop (202), and the upper half-circle waterstop (201) and the lower half-circle waterstop (202) are connected by a central ring.

3. The embedded waterstop positioning device according to claim 1, characterized in that: The wooden box body (1) is provided with wooden mold ribs (7) inside, and there are multiple wooden mold ribs (7).

4. The embedded waterstop positioning device according to claim 1, characterized in that: The length of the wooden box body (1) is the width of the box culvert structure, the height is the thickness of the top and bottom plates of the box culvert structure minus half the thickness of the central ring of the waterstop body (2), and the width is half the width of the waterstop body (2) plus the width of the expansion joint.

5. The embedded waterstop positioning device according to claim 1, characterized in that: The spacing between the square timber beams (3) is 500mm, and the steel pipe beams (4) are steel pipes with a diameter of 48mm.

6. The embedded waterstop positioning device according to claim 1, characterized in that: The leveling wooden template (6) is 1cm thick and is placed between the central ring of the wooden box body (1) and the waterstop body (2).

7. The embedded waterstop positioning device according to claim 1, characterized in that: The waterstop body (2) is surrounded by a box culvert steel reinforcement structure with waterstop reinforcing bars (8).

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