A leak-proof slurry structure device for airport pavement concrete undercutting formwork end sealing

Abstract

The application discloses a leakage-proof structure device for end sealing of an airport pavement concrete female rebate formwork, and relates to the field of building engineering devices. The end of the sealing formwork is provided with a leakage-proof plate in the length direction, the leakage-proof plate is provided with an adaptive part matched with the groove shape of the female rebate formwork, and the adaptive part on the leakage-proof plate seals the groove; the sealing formwork is provided with a connecting assembly for connecting with the leakage-proof plate, and is further provided with a supporting assembly for fixing on the ground. The leakage-proof plate matched with the female rebate formwork groove in shape realizes the tight sealing of the end gap; the connecting assembly allows the position of the leakage-proof plate to be finely adjusted, can effectively compensate the installation error and deformation of the formwork, ensures that the adaptive part can be accurately embedded into the groove, and guarantees the sealing reliability.

Description

Technical Field

[0001] This application relates to the technical field of building engineering devices, and in particular to a grout-proof structure device for sealing the end of a tongue-and-groove formwork for airport pavement concrete. Background Technology

[0002] During the construction of airport concrete pavements, tongue-and-groove formwork is typically used according to relevant technical specifications. After the concrete is poured in individual chambers, corresponding tongue-and-groove structures are formed on both sides of the pavement. This structure facilitates the connection and force transfer between pavement panels and is a common practice in airport pavement construction.

[0003] However, in the actual construction process of sealing the end plates, existing technologies generally use conventional rectangular sealing templates for splicing. Because the structural design of such rectangular templates does not match the special contour of the tongue-and-groove template, it is impossible to effectively seal the recesses and splicing gaps of the tongue-and-groove joint when they are joined together, which makes it very easy for grout leakage to occur at the tongue-and-groove joint during concrete pouring.

[0004] Grout leakage not only affects the density and molding quality of concrete, but may also create excess concrete blocks due to grout overflow. This necessitates additional labor for cleaning and even cutting, wasting materials and increasing construction costs. Furthermore, grout leakage can lead to insufficient compaction during vibration, creating potential quality hazards and affecting the overall performance and service life of the pavement. Utility Model Content

[0005] In view of the above-mentioned prior art, in order to solve the problems of grout leakage, poor molding quality, and waste of labor and materials caused by the mismatch between the conventional rectangular sealing plate and the outline of the tongue and groove formwork when sealing the end of the tongue and groove formwork in the construction of airport cement pavement, this application provides a grout leakage prevention structure device for sealing the end of the tongue and groove formwork of airport pavement concrete.

[0006] This application provides a grout-proof structural device for sealing the ends of tongue-and-groove formwork in airport pavement concrete, employing the following technical solution: A grout-proofing structure device for sealing the end of a tongue-and-groove formwork in airport pavement concrete includes a sealing formwork. A leak-proof plate is provided at the end of the sealing formwork along its length. An adapter portion matching the shape of the groove in the tongue-and-groove formwork is formed on the leak-proof plate, and the adapter portion on the leak-proof plate is provided with a sealing groove. A connecting component for connecting to the leak-proof plate is provided on the sealing formwork, and a support component for fixing to the ground is also provided on the sealing formwork.

[0007] By adopting the above technical solution and setting a leak-proof plate whose shape precisely matches the groove of the tongue-and-groove template, the end gaps can be effectively sealed, fundamentally preventing grout leakage during concrete pouring. The connecting component enables an adjustable connection between the leak-proof plate and the sealing template to accommodate on-site installation deviations. The support component ensures the stability of the entire device during the pouring process, preventing displacement or floating.

[0008] Preferably, there are at least three sets of support components, which are spaced apart along the length of the sealing template. Each support component includes a steel rod, a fixing block, and multiple supporting steel bars. One end of each supporting steel bar is fixedly connected to the sealing template, and the ends of the multiple supporting steel bars away from the sealing template are fixedly connected to each other. The fixing block is fixedly connected to the ends of the multiple supporting steel bars away from the sealing template. A through hole is provided on the top surface of the fixing block, and the steel rod is inserted into the through hole.

[0009] By adopting the above technical solution, multiple sets of support components are distributed along the length direction, providing uniform and reliable support. The combination of support steel bars, fixing blocks, and steel stakes, together with the ground and sealing template, forms a stable triangular support structure that can effectively resist the lateral pressure and buoyancy of concrete, ensuring the fixed position of the sealing template.

[0010] Preferably, the steel rod is provided with a handle at the top.

[0011] By adopting the above technical solution, the handle provides a convenient point of force for prying and pulling out the steel rod during disassembly, which significantly reduces labor intensity and improves demolding efficiency.

[0012] Preferably, the connecting assembly includes a fixing strip and a fixing member. There are two fixing strips, which are arranged in parallel and fixedly installed on the sealing template. The leak-proof plate is located between the two fixing strips. The fixing strip has a waist-shaped hole along its length on the side away from the leak-proof plate. The fixing member is a fixing bolt, which passes through the waist-shaped hole and is threadedly connected to the side wall of the leak-proof plate for fixation.

[0013] By adopting the above technical solution, the combination of the waist-shaped hole and the fixing bolt allows the leak-proof plate to be finely adjusted in position along the length of the sealing template during installation, thereby compensating for the installation error or deformation of the tongue and groove template, ensuring that the fitting part can always be accurately aligned and embedded in the groove, and achieving the best sealing effect.

[0014] Preferably, the connecting assembly includes a base plate and a hinge shaft. The base plate is fixedly installed on the sealing template and is hinged to the leak-proof plate via the hinge shaft. The leak-proof plate has a through hole, and the base plate has a corresponding threaded hole. A bolt passes through the through hole, and the leak-proof plate is fixed to the base plate by the bolt. When the mounting plate and the base plate are fixed by bolts, the fitting part of the leak-proof plate seals the groove of the tongue-and-groove template.

[0015] By adopting the above technical solution, the hinged connection allows the leak-proof plate a certain degree of rotational freedom, facilitating quick alignment with the tongue and groove contour during initial installation. After tightening with bolts, a tight fit and fixation between the leak-proof plate and the base plate can be achieved, making the operation simple and the fixation reliable.

[0016] Preferably, the connecting assembly includes mounting strips and locking components. There are two mounting strips arranged parallel to each other and fixedly mounted on the sealing template. The leak-proof plate is located between the two mounting strips. A groove is formed on the side wall of each mounting strip near the leak-proof plate. A slider that slides in accordance with the groove is provided on the leak-proof plate. A threaded hole is formed on the leak-proof plate. The locking component is a clamping screw, which is threadedly connected to the threaded hole and passes through the threaded hole to abut against the sealing template. A rotating handle is provided at the end of the clamping screw away from the threaded hole.

[0017] By adopting the above technical solution, the cooperation between the slider and the groove enables smooth and continuous adjustment of the position of the leak-proof plate. Combined with the locking function of the tightening screw, it can be firmly locked after precise adjustment, combining flexibility and stability, and further ensuring the accuracy of sealing.

[0018] Preferably, the sealing template is provided with a protective shell for covering the installation strip and the leak-proof plate. The protective shell is bolted to the sealing template. The end of the tightening screw near the rotating handle passes through the protective shell. The protective shell has a clearance hole along its length for the locking bolt to pass through.

[0019] By adopting the above technical solution, the protective shell effectively prevents concrete slurry from entering the sliding mating surfaces and threaded pairs of the connecting components, avoiding mechanical jamming and movement failure caused by cement solidification, thus improving the durability and reliability of the device and reducing maintenance requirements. The design of the clearance hole allows for adjustment and locking operations without disassembling the protective shell, making it convenient and practical.

[0020] In summary, this application includes at least one of the following beneficial technical effects: 1. By setting a leak-proof plate that matches the shape of the groove in the tongue and groove template, the end gaps are effectively sealed, which fundamentally solves the problem of concrete leakage and improves the forming quality and density of the pavement concrete. 2. The connecting components are adjustable to accommodate installation errors and deformations of the tongue and groove template, ensuring that the leak-proof plate is always accurately aligned, thus improving the adaptability and sealing reliability of the device; 3. The support component has a stable structure, which can effectively resist the lateral pressure and buoyancy during concrete pouring, prevent the formwork from shifting, and ensure construction quality and safety. At the same time, the handle design at the top of the steel rod and the addition of a protective shell improve the ease of use and durability of the device, and reduce maintenance costs. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of Example 1; Figure 2 yes Figure 1 Enlarged view of point A in the middle; Figure 3 This is a schematic diagram of the overall structure of Example 2; Figure 4 yes Figure 3 Enlarged view at point B in the middle; Figure 5 This is a schematic diagram of the overall structure of Example 3; Figure 6 Example 3 is an exploded view showing the sealing template, support components and connecting components.

[0022] Reference numerals: 100, tongue and groove template; 1, sealing template; 2, leak-proof plate; 21, adapter; 22, slider; 3, connecting assembly; 31, fixing strip; 311, slotted hole; 32, fastener; 321, fixing bolt; 33, base plate; 34, hinge shaft; 35, mounting strip; 351, slide groove; 36, locking element; 361, clamping screw; 4, support assembly; 41, steel chisel; 411, handle; 42, fixing block; 43, supporting reinforcing bar; 5, bolted connector; 6, protective shell. Detailed Implementation

[0023] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0024] This application discloses a grout-proof structure device for sealing the end of the tongue-and-groove formwork for airport pavement concrete.

[0025] Example 1 Reference Figure 1 and Figure 2 A grout-proofing structure for sealing the end of a tongue-and-groove formwork in airport pavement concrete includes a sealing formwork 1, a leak-proof plate 2, a connecting assembly 3, and a support assembly 4. The leak-proof plate 2 is fixedly installed at one end of the sealing formwork 1 along its length via the connecting assembly 3. The leak-proof plate 2 has an adapter portion 21 formed on it that matches the shape of the groove in the tongue-and-groove formwork 100, for embedding into and sealing the groove. Multiple sets of support assemblies 4 are arranged at intervals along the length of the sealing formwork 1 to stably support it on the ground.

[0026] Specifically, the support component 4 includes a steel rod 41, a fixing block 42, and multiple supporting steel bars 43. The multiple supporting steel bars 43 are welded and fixed to the sealing template 1. The ends of the multiple supporting steel bars 43 away from the sealing template 1 are all welded and fixed to the fixing block 42. The top of the fixing block 42 has a through hole, and the steel rod 41 is inserted into the through hole. During installation, the top of the steel rod 41 is hammered to embed its lower end into the ground. The multiple supporting steel bars 43, the sealing template 1, and the ground form a stable triangular support structure, which can effectively resist the lateral pressure generated during concrete pouring and prevent the template from shifting or floating.

[0027] Furthermore, a handle 411 is fixedly installed on the top of the steel rod 41. When disassembling the template, the handle 411 provides an excellent force point for prying and pulling out the steel rod 41. The operator can use tools such as pry bars to gain leverage, or directly shake and pull it out by hand, which greatly reduces labor intensity and improves demolding efficiency.

[0028] Specifically, the connecting component 3 includes two fixing strips 31 and two fixing members 32. The two fixing strips 31 are fixedly installed on the side wall of the sealing template 1 and are arranged in parallel. The length direction of the fixing strips 31 is consistent with the length direction of the sealing template 1. The leak-proof plate 2 is located between the two fixing strips 31 and is fixed by the fixing members 32. The fixing members 32 are fixing bolts 321. There are two fixing bolts 321. The side walls of the two fixing strips 31 that are opposite to each other are provided with waist-shaped holes 311 along the length direction. The two fixing bolts 321 pass through the waist-shaped holes 311 on the two fixing strips 31 and are bolted to the side wall of the leak-proof plate 2.

[0029] In actual construction, the actual position of the groove in the tongue and groove template 100 may deviate from the theoretical position due to installation errors, wear, or deformation. This will prevent the leak-proof plate 2 from being accurately aligned. Through the slotted hole 311 on the fixing strip 31, the fixing bolt 321 can move back and forth slightly along the length of the sealing template 1 during installation, thereby moving the leak-proof plate 2 and ensuring that the fitting part 21 on the leak-proof plate 2 can always be accurately embedded in the center of the groove.

[0030] The implementation principle of this embodiment is as follows: This device forms an effective seal at the end of the sealing template 1 by setting a leak-proof plate 2 that precisely matches the shape of the groove of the tongue-and-groove template 100, thereby preventing grout from leaking from the tongue-and-groove joint during concrete pouring. The leak-proof plate 2 is adjustablely installed on the sealing template 1 via a connecting component 3, and can be finely adjusted according to the actual position of the tongue-and-groove template 100 on site to ensure that the fitting part 21 can always be accurately embedded in the groove, achieving a tight seal. At the same time, multiple sets of support components 4 are anchored to the ground by steel rods 41, forming a stable triangular support system with the sealing template 1 and the ground, effectively resisting the lateral pressure and buoyancy generated during concrete pouring, preventing template displacement or floating, and ensuring the stability of the sealing position and the durability of the seal. This device has a reasonable structure, is easy to install, and has strong adaptability, fundamentally solving the problem of grout leakage caused by the inadequate sealing of traditional rectangular templates, and improving the forming quality and construction efficiency of pavement concrete.

[0031] Example 2 The difference between this embodiment and Embodiment 1 is that, referring to... Figure 3 and Figure 4 The connecting component 3 includes a base plate 33 and a hinge shaft 34. The base plate 33 is fixedly installed on the side wall of one end of the sealing template 1 along the length direction. The end of the leak-proof plate 2 away from the adapter 21 is hinged to the base plate 33 through the hinge shaft 34. A through hole is provided on the side wall of the leak-proof plate 2 away from the base plate 33. A threaded hole corresponding to the through hole is provided on the base plate 33. A bolt connector 5 is provided through the through hole. The bolt connector 5 is a bolt. The bolt passes through the through hole and is threadedly connected to the threaded hole on the base plate 33. When the bolt and the threaded hole are engaged, the head of the bolt is pressed against the outer surface of the leak-proof plate 2, thereby firmly attaching the leak-proof plate 2 to the base plate 33. At this time, the adapter part 21 of the leak-proof plate 2 is embedded in the groove on the tongue and groove template 100.

[0032] Example 3 The difference between this embodiment and Embodiment 1 is that, referring to... Figure 5 and Figure 6 The connecting component 3 includes two mounting strips 35 and two locking elements 36. The mounting strips 35 are fixedly installed on the side wall of the sealing template 1 and are arranged in parallel. The length direction of the mounting strips 35 is consistent with the length direction of the sealing template 1. The leak-proof plate 2 is located between the two mounting strips 35. The mounting strips 35 have a groove 351 on the side wall near the leak-proof plate 2. The leak-proof plate 2 is provided with a slider 22 that slides in cooperation with the groove 351. The locking element 36 is used to fasten the leak-proof plate 2 after it moves to the target position along the groove 351 via the slider 22, thereby fixing the relative position of the leak-proof plate 2 and the sealing template 1.

[0033] The locking component 36 is a clamping screw 361. The leak-proof plate 2 has a bolt hole. The clamping screw 361 is threadedly connected to the bolt hole, and the clamping screw 361 passes through the threaded hole and abuts against the sealing template 1. The end of the clamping screw 361 away from the threaded hole is provided with a rotating handle. When sealing the groove of the female tongue and groove template 100, first loosen the clamping screw 361 so that the leak-proof plate 2 can slide freely along the slide groove 351. Then, according to the actual position of the female tongue and groove template 100, accurately adjust the front and rear position of the leak-proof plate 2 so that its fitting part 21 is completely aligned and embedded in the groove. Finally, rotate the rotating handle to tighten the clamping screw 361. The strong clamping force generated by the bolt end will firmly lock the leak-proof plate 2 onto the sealing template 1, completing the precise positioning and rigid fixation.

[0034] The sealing template 1 is provided with a protective shell 6 for covering the installation strip 35 and the leak-proof plate 2. The protective shell 6 covers the installation strip 35 and the leak-proof plate 2 and is bolted to the sealing template 1. One side of the protective shell 6 is provided with an opening for the leak-proof plate 2 to slide out. The end of the tightening screw 361 near the rotating handle passes through the protective shell 6. The protective shell 6 has a clearance hole along its length for the tightening screw 361 to pass through.

[0035] When sealing the groove of the tongue and groove template 100, the protective shell 6 effectively isolates the concrete slurry, preventing it from splashing or seeping into the sliding mating surfaces of the mounting strip 35 and the slider 22, as well as the threaded joint of the clamping screw 361. This avoids mechanical jamming, thread seizing, and movement failure caused by cement solidification. In non-use mode, the protective shell 6 also provides comprehensive dustproof and impact-proof protection for the internal precision adjustment mechanism, significantly improving the durability and reliability of the device and reducing maintenance requirements. The clearance hole (designed as a long strip) allows the clamping screw 361 to slide along with the leak-proof plate 2 without disassembling the protective shell 6 and can be locked in any position.

[0036] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A grout-proof structural device for sealing the ends of tongue-and-groove formwork in airport pavement concrete, characterized in that, The system includes a sealing template (1), with a leak-proof plate (2) provided at one end along its length. The leak-proof plate (2) has an adapter (21) that matches the groove shape of the tongue and groove template (100), and the adapter (21) on the leak-proof plate (2) is provided with a sealing groove. The sealing template (1) is provided with a connecting component (3) for connecting with the leak-proof plate (2), and the sealing template (1) is also provided with a support component (4) for fixing to the ground.

2. The anti-leakage grouting structure device for sealing the end of the tongue-and-groove formwork in airport pavement concrete according to claim 1, characterized in that, The support components (4) are at least three sets, and the three support components (4) are spaced apart along the length of the sealing template (1); the support components (4) include steel rods (41), fixing blocks (42) and multiple supporting steel bars (43), one end of the multiple supporting steel bars (43) is fixedly connected to the sealing template (1), and the ends of the multiple supporting steel bars (43) away from the sealing template (1) are fixedly connected to each other. The fixing block (42) is fixedly connected to the ends of the multiple supporting steel bars (43) away from the sealing template (1). The top surface of the fixing block (42) is provided with a through hole, and the steel rods (41) are inserted into the through hole.

3. A grout-proof structural device for sealing the end of a tongue-and-groove formwork for airport pavement concrete, as described in claim 2, is characterized in that... The steel rod (41) is provided with a handle (411) at the top.

4. A grout-proof structural device for sealing the end of a tongue-and-groove formwork in airport pavement concrete according to claim 1, characterized in that, The connecting component (3) includes a fixing strip (31) and a fixing member (32). There are two fixing strips (31), which are arranged in parallel and fixedly installed on the sealing template (1). The leak-proof plate (2) is located between the two fixing strips (31). The fixing strip (31) has a waist-shaped hole (311) along its length on the side away from the leak-proof plate (2). The fixing member (32) is a fixing bolt (321), which passes through the waist-shaped hole (311) and is threadedly connected to the side wall of the leak-proof plate (2).

5. A grout-proof structural device for sealing the end of a tongue-and-groove formwork for airport pavement concrete, as described in claim 1, is characterized in that... The connecting assembly (3) includes a base plate (33) and a hinge shaft (34). The base plate (33) is fixedly installed on the sealing template (1). The base plate (33) is hinged to the leak-proof plate (2) through the hinge shaft (34). The leak-proof plate (2) has a through hole, and the base plate (33) has a corresponding threaded hole. A bolt passes through the through hole. The leak-proof plate (2) is fixed to the base plate (33) by the bolt. When the leak-proof plate (2) and the base plate (33) are fixed by the bolt connector (5), the adapter part (21) of the leak-proof plate (2) seals the groove of the female tongue and groove template (100).

6. A grout-proof structural device for sealing the end of a tongue-and-groove formwork for airport pavement concrete, as described in claim 1, is characterized in that... The connecting component (3) includes an installation strip (35) and a locking member (36). There are two installation strips (35), which are arranged in parallel and fixedly installed on the sealing template (1). The leak-proof plate (2) is located between the two installation strips (35). The installation strip (35) has a groove (351) on its side wall near the leak-proof plate (2). The leak-proof plate (2) is provided with a slider (22) that slides and cooperates with the groove (351). The leak-proof plate (2) has a threaded hole. The locking member (36) is a clamping screw (361). The clamping screw (361) is threadedly connected to the threaded hole and passes through the threaded hole to abut against the sealing template (1). The end of the clamping screw (361) away from the threaded hole is provided with a rotating handle.

7. A grout-proof structural device for sealing the end of a tongue-and-groove formwork in airport pavement concrete according to claim 6, characterized in that, The sealing template (1) is provided with a protective shell (6) for covering the installation strip (35) and the leak-proof plate (2). The protective shell (6) is bolted to the sealing template (1). The end of the tightening screw near the rotating handle passes through the protective shell (6). The protective shell (6) has a clearance hole along its length for the locking bolt to pass through.

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