Tunnel second lining new type polymer plug plate

Abstract

The utility model discloses a tunnel second lining novel high molecule plug board relates to plug board technical field. The utility model discloses a support subassembly, and the support subassembly includes the mounting panel, and the one side fixed with two support seats of mounting panel, and the mounting panel is fixedly connected with the trolley, and the screw rod is rotationally cooperated with in the support seat, and the slide holder is slidably cooperated with on the support seat, and the slide holder is threadedly cooperated with the screw rod. The utility model discloses the slide cooperation of the limiting block of the limiting groove of the inclined surface of upper plug board and extruding seat end portion, ensures the stable sliding of extruding seat along fixed track, avoids the stress deviation and leads to the plugging failure, and simultaneously, extruding seat extrudes the abutment plate when sliding, and pushes the plugging board vertically and rises along the guide telescopic link, can actively seal the gap between the pouring space and upper formwork, and the sustained extrusion force of extruding seat to upper formwork through the support rod, can make upper formwork and lower formwork closely adhere, reduces the concrete leakage problem in the pouring process, and guarantees the pouring quality of tunnel second lining.

Description

Technical Field

[0001] This utility model belongs to the field of end-lining plate technology, specifically, it relates to a novel polymer end-lining plate for tunnel secondary lining. Background Technology

[0002] The tunnel formwork system is the core equipment for the construction of tunnel arch and waist lining. Its construction process is as follows: When pouring lining, the formwork system is first extended outward to the preset position to form a closed pouring cavity between itself and the tunnel rock wall. After the pouring cavity is formed, the gaps between the two ends of the formwork system and the tunnel rock wall are sealed with end plates to ensure that the pouring cavity is completely sealed. Then the concrete pouring construction can be carried out. With the iterative upgrade of tunnel construction technology, end caps used to seal the internal pouring cavities of tunnels have gradually formed standardized and serialized products, which can efficiently adapt to the sealing needs of different tunnel sections. However, the construction of end caps at the tunnel exit end still follows the traditional process: that is, using arc-shaped end cap templates and rigidly connecting them directly to the tunnel trolley template system with bolts. When the size of the arc-shaped end cap template cannot completely cover the gap (there is a sealing blind spot), additional sealing templates are required, and the additional templates are also directly fixed to the original end caps with bolts. Taking the connection scenario of a single end cap as an example, if it needs to be connected to one tunnel template and two adjacent end caps, and each connection point requires two fixing bolts, then the installation and fixing of a single end cap requires the installation and removal of six sets of bolts. At the same time, the end cap itself is large and heavy, and the operators need to continuously lift and position it during the installation process, which consumes a lot of physical strength. The more bolt connections there are, the more complicated the operation steps become, and the longer the construction time is due to bolt misalignment. In addition, the bolt connection operation needs to be repeated when frequently replenishing the sealing template, which further reduces the overall efficiency of the tunnel exit end formwork sealing. In view of this, this utility model is hereby proposed. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a new type of polymer plug plate for tunnel secondary lining, which solves the problems mentioned in the background art.

[0004] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows: A novel polymer end cap for tunnel secondary lining includes: The support assembly includes a mounting plate with two support seats fixed on one side. The mounting plate is fixedly connected to the trolley. A threaded rod is rotatably fitted inside the support seat, and a slide seat is slidably fitted on the support seat. The slide seat and the threaded rod are threadedly fitted. The lower template is rotatably connected to two support bases. The upper template is rotatably connected to one side of the lower template. Two extrusion seats are slidably fitted on one side of the upper template. A support rod is slidably fitted inside the extrusion seat. The support rod cooperates with the slide seat. A sealing plate is slidably fitted on the upper side of the upper template. The sealing plate cooperates with the extrusion seat.

[0005] Optionally, the lower template includes a lower blocking plate, and a support plate is fixed on the upper side of the lower blocking plate, which cooperates with the upper template.

[0006] Optionally, the upper template includes an upper blocking plate, and a support plate is fixed to the lower side of the upper blocking plate, with the support plate cooperating with the support plate.

[0007] Optionally, two first connecting rods are fixed to the lower side of the support plate, one end of each first connecting rod is rotatably connected to two support seats, a second connecting rod is fixed to one side of each first connecting rod, and two third connecting rods are installed on the lower side of the support plate, with each third connecting rod rotatably connected to one end of a second connecting rod.

[0008] Optionally, a groove is provided on the upper side of the support base, the threaded rod is rotatably engaged in the groove, the slide block is slidably engaged in the groove, and a connector is provided at one end of the threaded rod extending to the outside of the groove.

[0009] Optionally, one side of the upper blocking plate is set as an inclined surface, and two limiting grooves are opened on one side of the inclined surface. A limiting block is installed at the end of the extrusion seat, and the limiting block slides in the limiting groove.

[0010] Optionally, a storage groove is provided on one side of the extrusion seat, and the support rod is slidably fitted in the storage groove. An embedding groove is provided at one end of the top of the storage groove, and the support rod is fitted in the embedding groove.

[0011] Optionally, a horizontal plate is fixed to one side of the sealing plate, and an abutment plate is installed at an angle on one side of the horizontal plate. Multiple guide telescopic rods are installed between the horizontal plate and the upper sealing plate, and the abutment plate cooperates with two compression seats.

[0012] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art. Of course, any product implementing the present invention does not necessarily need to achieve all of the following advantages at the same time: 1. By sliding the limiting groove on the inclined surface of the upper blocking plate with the limiting block at the end of the extrusion seat, the extrusion seat is ensured to slide stably along a fixed trajectory, avoiding force deviation that could lead to sealing failure. At the same time, when the extrusion seat slides, it presses against the abutment plate, pushing the sealing plate to rise vertically along the guide telescopic rod. This can actively seal the gap between the pouring space and the upper formwork. With the support rod, the continuous extrusion force of the extrusion seat on the upper formwork can ensure that the upper and lower formwork fit tightly together, reducing concrete leakage during the pouring process and ensuring the quality of the tunnel secondary lining pouring. 2. The support plate of the lower formwork is adapted to the support plate of the upper formwork to achieve the initial docking and positioning of the upper and lower formwork, reduce the gap at the joint of the upper and lower formwork, further enhance the sealing performance, and avoid grout leakage due to formwork misalignment. 3. The first connecting rod on the underside of the support plate is rotatably connected to the support base, and the second connecting rod of the first connecting rod is rotatably engaged with the third connecting rod on the underside of the support plate, thus constructing a linkage structure between the lower and upper formwork. During operation, simply flipping the lower formwork will drive the upper formwork to flip synchronously through the connecting rod transmission, achieving coordinated opening and closing of the upper and lower formwork without the need for separate operation. This simplifies the formwork installation and demolding process, reduces construction labor costs, and improves construction efficiency. 4. The groove of the support base provides installation and movement space for the threaded rod and the slide block, and the connector at the extension end of the threaded rod can be quickly connected to an electric wrench. The operator can drive the threaded rod to rotate with the power tool, converting the rotational motion into the linear sliding of the slide block along the groove. Then, the position of the extrusion seat can be adjusted by the support rod. There is no need for manual and laborious adjustment. The operation is convenient and efficient, reducing labor intensity. 5. The mounting plate of the support component is fixedly connected to the trolley, providing a stable foundation for the overall structure; the sliding groove of the support seat limits the sliding seat, preventing the sliding seat from rotating with the threaded rod and ensuring stable force transmission; at the same time, the lower template and the support seat are rotatably connected through the first connecting rod, and the upper and lower templates are linked through multiple sets of connecting rods, so that the overall structure is subjected to balanced force, and is not easy to be misaligned or deformed during the sealing and pouring process, thus improving the structural stability. 6. The storage slot of the extrusion seat can store the support rod when not in operation, preventing the support rod from being exposed to the outside and damaged by collision. The support rod and the embedded slot form a stable support point, reducing rigid collisions and wear between components during force transmission. In addition, the guide telescopic rod limits the movement direction of the sealing plate, avoiding component wear caused by the sealing plate offset, extending the service life of the overall equipment, and reducing equipment maintenance and replacement costs.

[0013] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0014] The accompanying drawings described below are merely some embodiments. Those skilled in the art can obtain other drawings based on these drawings without any creative effort. In the drawings: Figure 1 This is a schematic diagram of the three-dimensional structure of the end cap plate; Figure 2 This is a schematic diagram of the template structure. Figure 3 This is a schematic diagram of the template structure. Figure 4 This is a schematic diagram of the extrusion seat structure; Figure 5This is a schematic diagram of the supporting component structure.

[0015] The attached diagram lists the components represented by each number as follows: Support assembly 1, mounting plate 101, support base 102, threaded rod 103, slide block 104, slide groove 105, connector 106; Lower template 2, lower blocking plate 201, support plate 202, first connecting rod 203, second connecting rod 204; Upper template 3, extrusion seat 301, support rod 302, sealing plate 303, upper blocking plate 304, support plate 305, third connecting rod 306, limiting block 307, storage groove 308, embedding groove 309, horizontal plate 310, abutment plate 311, guide telescopic rod 312.

[0016] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0017] The present invention will now be described in further detail with reference to the accompanying drawings.

[0018] Please see Figure 1-5 As shown, this embodiment provides a novel polymer end cap plate for tunnel secondary lining, comprising: Support assembly 1 includes a mounting plate 101, two support seats 102 are fixed on one side of the mounting plate 101, the mounting plate 101 is fixedly connected to the trolley, a threaded rod 103 is rotatably fitted inside the support seat 102, and a slide seat 104 is slidably fitted on the support seat 102, with the slide seat 104 threadedly fitted to the threaded rod 103. Lower template 2 is rotatably connected to two support bases 102; The upper template 3 is rotatably connected to one side of the lower template 2. Two extrusion seats 301 are slidably fitted on one side of the upper template 3. A support rod 302 is slidably fitted inside the extrusion seat 301. The support rod 302 cooperates with the slide seat 104. A sealing plate 303 is slidably fitted on the upper side of the upper template 3. The sealing plate 303 cooperates with the extrusion seat 301.

[0019] Working principle: First, the mounting plate 101 is fixedly connected to the trolley. Then, the lower template 2 is flipped to the preset working position. The embedded waterstop in the tunnel secondary lining is laid along the arc contour of the construction joint at the support plate 202 on top of the lower blocking plate 201. Then, the upper template 3 is flipped so that the support plate 305 below the upper blocking plate 304 is pressed against the upper part of the waterstop. The waterstop is initially clamped and positioned by the closing and docking of the upper and lower templates. The upper and lower templates work together to form a preliminary seal for the space to be poured, laying the foundation for subsequent sealing operations. The staff pulls the support rod 302 out of the extrusion seat 301, and then inserts one end of the support rod 302 into the slide seat 104; at this time, the support rod 302 is in an inclined state and is stably connected between the slide seat 104 and the extrusion seat 301, thus constructing a key support structure for force transmission. Rotating the threaded rod 103, the threaded engagement between the threaded rod 103 and the slide 104 causes the slide 104 to move horizontally to the lower template 2 side. During this process, the slide 104 applies pressure to the extrusion seat 301 through the support rod 302, causing the extrusion seat 301 to slide upward along the inner side of the upper template 3. As the extrusion seat 301 slides, it simultaneously abuts against the sealing plate 303, pushing the sealing plate 303 upward, thereby sealing the gap between the pouring space and the upper template 3 tightly. At the same time, the thrust of the support rod 302 is transmitted to the upper template 3 through the extrusion seat 301, so that the upper template 3 and the lower template 2 are continuously and tightly pressed together, firmly clamping the waterstop between the support plate 202 and the support plate 305, completing the tight installation of the waterstop, which can effectively prevent the waterstop from shifting during the pouring process. After the pouring space is completely sealed, the support rod 302 will continuously apply pressure to the upper template 3 through the extrusion seat 301 to ensure that the upper template 3 and the lower template 2 fit tightly together, reducing the risk of concrete leakage during the pouring process. When the concrete layer is poured and the demolding conditions are met, the above operation steps are reversed; rotate the threaded rod 103 so that the threaded rod 103 drives the slide block 104 to move away from the lower template 2, thereby releasing the support rod 302 from the upper template 3; finally, rotate the upper template 3 and the lower template 2 respectively to complete the demolding operation.

[0020] The lower template 2 in this embodiment includes a lower blocking plate 201, and a support plate 202 is fixed on the upper side of the lower blocking plate 201. The support plate 202 cooperates with the upper template 3. The upper template 3 in this embodiment includes an upper blocking plate 304, and a support plate 305 is fixed on the lower side of the upper blocking plate 304. The support plate 305 cooperates with the support plate 202.

[0021] The lower blocking plate 201 serves as a basic load-bearing component, and the support plate 202 above it is used to support the upper formwork 3. In the upper formwork 3, the upper blocking plate 304 is the main sealing structure, and the support plate 305 below it is adapted to the support plate 202. During the installation of the formwork, the support plate 305 rests on the support plate 202 to achieve the initial connection and positioning of the upper and lower formwork, improve the overall structural stability of the formwork, and make the formwork less prone to misalignment and deformation during the sealing and pouring process.

[0022] In this embodiment, two first connecting rods 203 are fixed on the lower side of the support plate 202. One end of each first connecting rod 203 is rotatably connected to two support seats 102. A second connecting rod 204 is fixed on one side of each first connecting rod 203. Two third connecting rods 306 are installed on the lower side of the support plate 305. The third connecting rods 306 are rotatably connected to one end of each second connecting rod 204.

[0023] The support plate 202 is rotatably connected to the support base 102 via two first connecting rods 203 on its lower side, allowing the lower template 2 to rotate around the support base 102. The second connecting rod 204 on the first connecting rod 203 is rotatably connected to the third connecting rod 306 on the lower side of the support plate 305, forming a linkage structure between the lower template 2 and the upper template 3. When the lower template 2 is rotated, the first connecting rod 203 rotates, which drives the third connecting rod 306 via the second connecting rod 204, thereby pulling the upper template 3 to rotate synchronously, realizing the coordinated opening and closing of the upper and lower templates, which is suitable for the process requirements of sealing before the tunnel secondary lining is poured and demolding after pouring. This flip-type opening and closing structure can fully unfold the upper and lower templates during the installation of the waterstop, exposing the complete construction joint end face, providing sufficient operating space for the laying and alignment of the waterstop. Compared with the traditional bolt-assembled end plate, it can significantly improve the installation efficiency and alignment accuracy of the waterstop.

[0024] In this embodiment, a groove 105 is provided on the upper side of the support base 102, the threaded rod 103 is rotatably engaged in the groove 105, the slide block 104 is slidably engaged in the groove 105, and a connector 106 is provided at one end of the threaded rod 103 extending to the outside of the groove 105.

[0025] The groove 105 on the support 102 provides installation and movement space for the threaded rod 103 and the slide 104. The threaded rod 103 rotates in the groove 105. Because the slide 104 is threadedly engaged with the threaded rod 103 and is limited by the groove 105, it can only move along the direction of the groove 105 and cannot rotate with the threaded rod 103. When the threaded rod 103 is driven to rotate through the connector 106, the rotational motion of the threaded rod 103 can be converted into the linear sliding of the slide 104 along the groove 105, thereby adjusting the position of the slide 104. The connector 106 is used in conjunction with the output end of an electric wrench in the prior art for quick connection, making it easy for workers to rotate the threaded rod 103.

[0026] In this embodiment, one side of the upper blocking plate 304 is set as an inclined surface, and two limiting grooves are opened on one side of the inclined surface. A limiting block 307 is installed at the end of the extrusion seat 301, and the limiting block 307 is slidably engaged in the limiting groove. In this embodiment, one side of the extrusion seat 301 is provided with a receiving groove 308, and the support rod 302 is slidably engaged in the receiving groove 308. One end of the top of the receiving groove 308 is provided with an embedding groove 309, and the support rod 302 cooperates with the embedding groove 309. In this embodiment, one side of the sealing plate 303 is fixed with a horizontal plate 310, and one side of the horizontal plate 310 is inclinedly installed with an abutment plate 311. Multiple guide telescopic rods 312 are installed between the horizontal plate 310 and the upper blocking plate 304, and the abutment plate 311 cooperates with the two extrusion seats 301.

[0027] One side of the upper blocking plate 304 is set as an inclined surface and has two limiting grooves, which form a sliding fit with the limiting block 307 at the end of the extrusion seat 301. This structure allows the extrusion seat 301 to slide stably along the inclined surface without deviating when pushed by the support rod 302, which not only ensures the accuracy of the sliding trajectory, but also improves the stability of the overall structure during the force process, providing a reliable foundation for subsequent sealing actions. The storage groove 308 on one side of the extrusion seat 301 allows the support rod 302 to be stored in it when not in use, reducing the space occupied in the non-working state and facilitating template flipping and transportation; when working, the support rod 302 can be pulled out from the storage groove 308, and one end can be embedded in the embedding groove 309 to form a stable support point, ensuring the effective transmission of force, simplifying the installation process while ensuring the reliability of the support. The sealing plate 303 is connected to the upper sealing plate 304 via multiple guide telescopic rods 312 connected by the horizontal plate 310. The guide telescopic rods 312 limit the sealing plate 303 to only move vertically, ensuring the accuracy of the movement direction. When the extrusion seat 301 slides along the inclined surface, it will extrude the abutment plate 311 installed at an angle on one side of the horizontal plate 310, and then push the sealing plate 303 to rise along the guide telescopic rods 312 through the horizontal plate 310, converting the lateral force into vertical lift, thereby achieving active sealing of the gap between the pouring space and the upper formwork. With the tight fit of the upper and lower formwork, concrete leakage is reduced.

[0028] This embodiment innovates and optimizes the material selection. The upper blocking plate 304, the lower blocking plate 201 and the sealing plate 303 are all made of transparent polymer materials, specifically polycarbonate. At the same time, the upper template 3 and the lower template 2 are also made of polycarbonate as the raw material.

[0029] This material design offers significant construction advantages: the transparency of polycarbonate allows for visualization of the pouring process, enabling construction workers to clearly observe the flow, filling progress, and compaction of the concrete within the pouring cavity, effectively preventing quality problems such as voids and honeycombing caused by uneven concrete pouring. More importantly, the transparent panels allow direct observation of the real-time position and centering status of the tunnel waterstop. Construction workers can visually check the waterstop's installation accuracy without dismantling the formwork, facilitating timely adjustments to installation deviations and ensuring precise placement. As a core component of tunnel waterproofing, the installation accuracy of the waterstop directly affects the tunnel's long-term waterproofing performance. The transparent and visual design of this device, combined with its flip-open structure, significantly reduces the difficulty of waterstop installation and alignment, ensuring the waterproofing and structural quality of the tunnel lining from the source.

[0030] It should be noted that all electrical devices involved in this application can be powered by batteries or external power sources.

[0031] This utility model is not limited to the above-described embodiments. Anyone should know that structural changes made under the guidance of this utility model, and any technical solutions that are the same as or similar to this utility model, fall within the protection scope of this utility model. Technical aspects, shapes, and structures not described in detail in this utility model are all publicly known technologies.

Claims

1. A novel polymer end cap plate for tunnel secondary lining, characterized in that, include: The support assembly (1) includes a mounting plate (101), two support seats (102) are fixed on one side of the mounting plate (101), the mounting plate (101) is fixedly connected to the trolley, a threaded rod (103) is rotatably fitted inside the support seat (102), and a slide seat (104) is slidably fitted on the support seat (102), and the slide seat (104) is threadedly fitted with the threaded rod (103); The lower template (2) is rotatably connected to two support seats (102); The upper template (3) is rotatably connected to one side of the lower template (2). Two extrusion seats (301) are slidably fitted on one side of the upper template (3). A support rod (302) is slidably fitted inside the extrusion seat (301). The support rod (302) is fitted with the slide seat (104). A sealing plate (303) is slidably fitted on the upper side of the upper template (3). The sealing plate (303) is fitted with the extrusion seat (301).

2. The novel polymer end cap plate for tunnel secondary lining according to claim 1, characterized in that, The lower template (2) includes a lower blocking plate (201), and a support plate (202) is fixed on the upper side of the lower blocking plate (201). The support plate (202) cooperates with the upper template (3).

3. The novel polymer end cap plate for tunnel secondary lining according to claim 2, characterized in that, The upper template (3) includes an upper blocking plate (304), and a support plate (305) is fixed on the lower side of the upper blocking plate (304). The support plate (305) cooperates with the support plate (202).

4. A novel polymer end cap for tunnel secondary lining according to claim 3, characterized in that, Two first connecting rods (203) are fixed on the lower side of the support plate (202). One end of the two first connecting rods (203) is rotatably connected to two support seats (102). A second connecting rod (204) is fixed on one side of the first connecting rod (203). Two third connecting rods (306) are installed on the lower side of the support plate (305). The third connecting rods (306) are rotatably connected to one end of the second connecting rod (204).

5. A novel polymer end cap plate for tunnel secondary lining according to claim 1, characterized in that, The upper side of the support base (102) is provided with a slide groove (105), the threaded rod (103) is rotatably engaged in the slide groove (105), the slide block (104) is slidably engaged in the slide groove (105), and a connector (106) is provided at one end of the threaded rod (103) extending to the outside of the slide groove (105).

6. A novel polymer end cap plate for tunnel secondary lining according to claim 1, characterized in that, One side of the upper blocking plate (304) is set as an inclined surface, and two limiting grooves are opened on one side of the inclined surface. A limiting block (307) is installed at the end of the extrusion seat (301), and the limiting block (307) slides in the limiting groove.

7. A novel polymer end cap plate for tunnel secondary lining according to claim 6, characterized in that, The compression seat (301) has a storage groove (308) on one side, and the support rod (302) is slidably fitted in the storage groove (308). An embedding groove (309) is opened at one end of the top of the storage groove (308), and the support rod (302) is fitted in the embedding groove (309).

8. A novel polymer end cap for tunnel secondary lining according to claim 1, characterized in that, A horizontal plate (310) is fixed on one side of the sealing plate (303), and an abutment plate (311) is installed at an angle on one side of the horizontal plate (310). Multiple guide telescopic rods (312) are installed between the horizontal plate (310) and the upper sealing plate (304), and the abutment plate (311) cooperates with two compression seats (301).

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