A formwork structure for preventing grout leakage at the external corners of walls and columns.

By setting a drive structure with sliding rods and sliders on the profiles, combined with detachable stop blocks for limiting, the problem of grout leakage caused by the gap at the external corner of the wall and column is solved, achieving efficient pouring quality control and low-cost maintenance.

CN224514737UActive Publication Date: 2026-07-17ZHEJIANG JINHUI CONSTRUCTINO CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG JINHUI CONSTRUCTINO CO LTD
Filing Date
2025-08-28
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

During the pouring of wall columns, when the formwork and profiles are directly spliced, gaps are prone to appear at the external corners, which can lead to cement slurry leakage and affect the quality of the wall column forming.

Method used

By setting slide bars and sliders on the profile, the drive structure drives the slider to move the rubber pad to slide, closely fitting the plate and eliminating the gap at the external corner. A detachable stop block structure is used to limit the plate and ensure sealing.

Benefits of technology

It effectively avoids grout leakage during pouring, ensures the quality of wall and column forming, reduces maintenance costs, and improves assembly efficiency and stability.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of building construction formwork technology, specifically a wall and column casting formwork structure to prevent grout leakage at the external corners of walls and columns. It includes four panels that enclose a rectangular casting space. Profiles are installed at the external corner joints of adjacent panels, and these profiles have sealing structures. The sealing structure includes sliding rods, with two sliding rods slidably connected to the profiles. Rubber pads are fixedly connected to the sliding rods, and the rubber pads abut against the panels. A slider is fixedly connected to the sliding rod, and the slider is driven to slide by a driving structure. By driving the slider through the driving structure, the rubber pads slide and fit tightly against the panels, effectively eliminating gaps at the external corner joints, preventing grout leakage during casting, and ensuring the quality of the wall and column casting.
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Description

Technical Field

[0001] This utility model relates to a building construction template, specifically a wall and column casting template structure to prevent grout leakage at the external corner of the wall and column, belonging to the field of building construction template technology. Background Technology

[0002] Wall columns are core load-bearing and enclosure components in building structures, widely used in various types of buildings such as residential, commercial, and industrial plants. They mainly bear the responsibility of vertical load transfer and lateral force resistance. Their structural strength and forming quality directly affect the overall safety and durability of the building. In the construction of wall columns, concrete casting is usually adopted. That is, a casting cavity matching the design size of the wall column is first formed by enclosing it with formwork, and then concrete is poured into the cavity. After the concrete has cured to the design strength, the formwork is removed, and the wall column is formed. Among them, the formwork, as the "mold" for concrete casting, must have sufficient rigidity and sealing to ensure the accuracy of concrete forming. Profiles are often used to reinforce and seal the joints of the formwork (especially critical parts such as external corners). Through cooperation and connection with the formwork, the overall stability of the formwork system is improved, and quality problems caused by formwork deformation or joint gaps during the casting process are reduced.

[0003] However, in the existing technology for formwork construction of wall columns, when the formwork and profile are directly spliced, the direct splicing relies solely on the shape of the profile itself and the edge of the formwork to fit together. This can easily lead to gaps due to processing errors or installation deviations. At the external corners, cement slurry can easily leak from the gaps, causing defects such as honeycomb and pitting to appear after the wall column is formed, which affects the quality of the pouring. Utility Model Content

[0004] The purpose of this utility model is to provide a wall column casting template structure that prevents grout leakage at the external corner of the wall column in order to solve the above problems. The drive structure drives the slider to move the rubber pad and fit it tightly against the plate, which can effectively eliminate the gap at the external corner, avoid grout leakage during casting, and ensure the quality of wall column casting.

[0005] This utility model achieves the above-mentioned objective through the following technical solution: a wall column casting template structure for preventing grout leakage at the external corner of a wall column, comprising four plates, which enclose a rectangular casting space. A profile is installed at the external corner joint of adjacent plates, and a sealing structure is provided on the profile. The sealing structure includes a sliding rod, and two sliding rods are slidably connected to the profile. A rubber pad is fixedly connected to the sliding rod, and the rubber pad abuts against the plate. A slider is fixedly connected to the sliding rod, and the slider is driven to slide by a driving structure.

[0006] Preferably, the slider is slidably connected to the profile, and a drive shaft is rotatably connected to the slider.

[0007] Preferably, the driving structure includes a driving block, and two driving blocks are slidably connected on the profile. The driving block is provided with an inclined groove and a straight groove, and the driving shaft is used in conjunction with the inclined groove and the straight groove.

[0008] Preferably, a connecting rod is fixedly connected between the two drive blocks, and the connecting rod is slidably connected to the profile.

[0009] Preferably, a first lead screw is rotatably connected to the profile, and the connecting rod is threadedly connected to the first lead screw.

[0010] Preferably, a guide shaft is fixedly connected to the profile, and the connecting rod is slidably connected to the guide shaft.

[0011] Preferably, the profile is provided with a blocking structure, the blocking structure includes a mounting frame, two mounting frames are fixedly connected to the profile, a mounting block is detachably connected to the mounting frame, a stop block is fixedly connected to the mounting block, and the stop block is slidably connected to the plate body.

[0012] Preferably, a locking block is slidably connected to the mounting frame, and the mounting block is provided with a locking groove, wherein the locking block engages with the locking groove.

[0013] Preferably, a second lead screw is rotatably connected to the mounting frame, and the locking block is threadedly connected to the second lead screw.

[0014] Preferably, the profile is provided with a threaded hole, and a positioning pin is threadedly connected to the threaded hole.

[0015] The beneficial effects of this utility model are as follows: four plates enclose a rectangular casting space, and profiles are installed at the corner joints of adjacent plates. The profiles are equipped with sealing structures, and two sliding rods are slidably connected to the profiles. Rubber pads are fixedly connected to the sliding rods, and the rubber pads abut against the plates. A slider is fixedly connected to the sliding rods, and the slider is driven to slide by a driving structure. The driving structure drives the slider to move the rubber pads to slide and fit tightly against the plates, which can effectively eliminate the gaps at the corner joints, avoid grout leakage during casting, and ensure the quality of wall and column casting. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the connection structure between the stop block and the plate body of this utility model; Figure 3 for Figure 2 The diagram shown is an enlarged view of the structure of part A. Figure 4 for Figure 2 The diagram shown is an enlarged view of the structure of section B. Figure 5This is a schematic diagram of the connection structure between the layer mounting frame and the profile of this utility model; Figure 6 This is a schematic diagram of the connection structure between the guide shaft and the connecting rod of this utility model; Figure 7 for Figure 6 The diagram shown is an enlarged view of the C-section structure. Figure 8 This is a schematic diagram of the connection structure between the drive shaft and the drive block of this utility model.

[0017] In the diagram: 1. Plate; 2. Profile; 3. Sealing structure; 301. Slide rod; 302. Rubber pad; 303. Slider; 304. Drive shaft; 4. Drive structure; 401. Drive block; 402. Inclined groove; 403. Straight groove; 404. Connecting rod; 405. Guide shaft; 406. First lead screw; 5. Stopping structure; 501. Mounting frame; 502. Mounting block; 503. Stop block; 504. Locking block; 505. Locking groove; 506. Second lead screw; 6. Threaded hole; 7. Positioning pin; 8. Positioning hole. Detailed Implementation

[0018] 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.

[0019] Please see Figures 1-8 As shown, a wall column casting template structure for preventing grout leakage at the external corner of a wall column includes four plates 1, which enclose a rectangular casting space. Profiles 2 are installed at the external corner joints of adjacent plates 1. A sealing structure 3 is provided on the profiles 2. The sealing structure 3 includes sliding rods 301. Two sliding rods 301 are slidably connected to the profiles 2. Rubber pads 302 are fixedly connected to the sliding rods 301 and abut against the plates 1. A slider 303 is fixedly connected to the sliding rods 301 and is driven to slide by a driving structure 4.

[0020] As a technical optimization of this utility model, the slider 303 is slidably connected to the profile 2, and a drive shaft 304 is rotatably connected to the slider 303. The drive structure 4 includes a drive block 401, and two drive blocks 401 are slidably connected to the profile 2. The drive block 401 is provided with a slanted groove 402 and a straight groove 403. The drive shaft 304 is used in conjunction with the slanted groove 402 and the straight groove 403. A connecting rod 404 is fixedly connected between the two drive blocks 401. The connecting rod 404 is slidably connected to the profile 2. A first lead screw 406 is rotatably connected to the profile 2. When the first lead screw 406 rotates, it drives the connecting rod 404 through the thread, as well as the two drives fixedly connected to the connecting rod 404. The moving block 401 slides synchronously. During the sliding process of the driving block 401, the inclined groove 402 it opens will exert a squeezing force on the drive shaft 304 rotatably connected to the slider 303, thereby causing the slider 303 to drive the sliding rod 301 to slide along the profile 2. When the sliding rod 301 slides, it will drive the rubber pad 302 to cooperate with the stop block 503 to press against it until the rubber pad 302 fixed on the sliding rod 301 tightly abuts against the plate 1. Through the fit between the rubber pad 302 and the plate 1, the gap of the external corner splicing can be effectively eliminated to avoid grout leakage. The connecting rod 404 is threadedly connected to the first lead screw 406. A guide shaft 405 is fixedly connected in the profile 2. The connecting rod 404 and the guide shaft 405 are slidably connected.

[0021] As a technical optimization of this utility model, the profile 2 is provided with a blocking structure 5, which includes a mounting frame 501. Two mounting frames 501 are fixedly connected to the profile 2. A mounting block 502 is detachably connected to the mounting frame 501. A stop block 503 is fixedly connected to the mounting block 502 and is slidably connected to the plate 1. A locking block 504 is slidably connected to the mounting frame 501. A locking groove 505 is provided on the mounting block 502, and the locking block 504 engages with the locking groove 505. A second lead screw 506 is rotatably connected to the mounting frame 501, and the locking block 504 is threadedly connected to the second lead screw 506. Simultaneously, when different thicknesses are required... When replacing the stop block 503 on the plate, the second screw 506 on the mounting frame 501 can be rotated using an Allen wrench. The rotation of the second screw 506 will drive the locking block 504 through the thread, so that the locking block 504 is no longer engaged with the locking groove 505 of the mounting block 502. At this time, the mounting block 502 can be slid out of the mounting frame 501 for disassembly. The sliding engagement between the stop block 503 and the plate 1 can limit the plate 1 and prevent the plate 1 from shifting during pouring. The stop block 503 can be replaced separately if it is damaged, which effectively reduces maintenance costs. The profile 2 is provided with a threaded hole 6, and a positioning post 7 is threadedly connected in the threaded hole 6. The profile 2 is provided with a positioning hole 8.

[0022] In practical application of this utility model, when using the wall and column casting template structure to prevent grout leakage at the external corners of the wall and column, firstly, four plates 1 are arranged in a rectangular shape, with the ends of adjacent plates 1 correspondingly spliced ​​at the four external corners. Then, the profile 2 is installed at the external corner splicing points of the adjacent plates 1 to complete the basic assembly. Next, the first lead screw 406 on the profile 2 is rotated using an internal hex wrench. Since the connecting rod 404 is threadedly connected to the first lead screw 406, and the connecting rod 404 can slide on the guide shaft 405, the rotation of the first lead screw 406 will drive the connecting rod 404 through the thread, and the two drive blocks 401 fixedly connected to the connecting rod 404 will slide synchronously. During the sliding process of the drive block 401, the inclined groove 402 it opens will generate a squeezing force on the drive shaft 304 rotatably connected to the slider 303, thereby causing the slider 303 to drive the sliding rod 301 to slide along the profile 2. When the sliding rod 301 slides, it will drive the rubber pad 302 to cooperate with the stop block 503 to press against it. Until the rubber pad 302 fixed on the slide rod 301 is in close contact with the plate 1, the fit between the rubber pad 302 and the plate 1 can effectively eliminate the gap at the external corner and prevent grout leakage. At the same time, when it is necessary to replace the stop block 503 according to the plate of different thickness, the second screw 506 on the mounting frame 501 can be rotated by using an internal hex wrench. The rotation of the second screw 506 will drive the locking block 504 through the thread, so that the locking block 504 is no longer engaged with the locking groove 505 of the mounting block 502. At this time, the mounting block 502 can be slid out of the mounting frame 501 for disassembly. The sliding fit between the stop block 503 and the plate 1 can limit the plate 1 and prevent the plate 1 from shifting during pouring. The stop block 503 can be replaced separately if it is damaged, which can effectively reduce maintenance costs. In addition, during the use of the upper and lower profiles 2, the positioning post 7 can be screwed into the threaded hole 6 of the profile 2, so that the positioning post 7 is inserted into the positioning hole 8 at the bottom, thereby further improving the overall assembly efficiency and stability.

[0023] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0024] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A wall column pouring formwork structure for preventing wall column external corner slurry leakage, comprising four plate bodies (1), characterized in that: Four plates (1) enclose a rectangular casting space. A profile (2) is installed at the corner joint of adjacent plates (1). A sealing structure (3) is provided on the profile (2). The sealing structure (3) includes a slide rod (301). Two slide rods (301) are slidably connected on the profile (2). A rubber pad (302) is fixedly connected on the slide rod (301). The rubber pad (302) abuts against the plate (1). A slider (303) is fixedly connected on the slide rod (301). The slider (303) is driven to slide by a driving structure (4).

2. The wall column pouring formwork structure for preventing wall column external corner slurry leakage according to claim 1, characterized in that: The slider (303) is slidably connected to the profile (2), and a drive shaft (304) is rotatably connected to the slider (303).

3. The wall column pouring formwork structure for preventing wall column external corner slurry leakage according to claim 2, characterized in that: The drive structure (4) includes a drive block (401). Two drive blocks (401) are slidably connected on the profile (2). The drive block (401) is provided with a slanted groove (402) and a straight groove (403). The drive shaft (304) is used in conjunction with the slanted groove (402) and the straight groove (403).

4. The wall column pouring formwork structure for preventing wall column external corner slurry leakage according to claim 3, characterized in that: A connecting rod (404) is fixedly connected between the two drive blocks (401), and the connecting rod (404) is slidably connected to the profile (2).

5. The formwork structure for pouring wall column according to claim 4, characterized in that: A first lead screw (406) is rotatably connected to the profile (2), and the connecting rod (404) is threadedly connected to the first lead screw (406).

6. The formwork structure for pouring wall column according to claim 5, characterized in that: A guide shaft (405) is fixedly connected to the profile (2), and the connecting rod (404) is slidably connected to the guide shaft (405).

7. A formwork structure for pouring a wall column according to claim 1, wherein: The profile (2) is provided with a blocking structure (5), the blocking structure (5) includes a mounting frame (501), two mounting frames (501) are fixedly connected to the profile (2), a mounting block (502) is detachably connected to the mounting frame (501), a stop block (503) is fixedly connected to the mounting block (502), and the stop block (503) is slidably connected to the plate (1).

8. The wall column pouring formwork structure for preventing wall column external corner slurry leakage according to claim 7, characterized in that: A locking block (504) is slidably connected to the mounting frame (501), and a locking slot (505) is provided on the mounting block (502). The locking block (504) engages with the locking slot (505).

9. The formwork structure for pouring a wall column according to claim 8, wherein: A second lead screw (506) is rotatably connected to the mounting frame (501), and the locking block (504) is threadedly connected to the second lead screw (506).

10. A formwork structure for pouring a wall column according to claim 1, wherein: The profile (2) is provided with a threaded hole (6), and a positioning pin (7) is threadedly connected in the threaded hole (6). The profile (2) is provided with a positioning hole (8).