Adjustable building template fastening device

The adjustable formwork fastening device, with its suction cup and air cylinder system, solves the problem of complex operation of traditional fastening devices, enabling rapid fixing and convenient operation at formwork joints.

CN223793877UActive Publication Date: 2026-01-13WEIHAI XINGDE BUILDING MATERIALS CO LTD
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Patent Information

Application Number
CN202520378542.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-06
Publication Date
2026-01-13
Estimated Expiration
2035-03-06

AI Technical Summary

Technical Problem

Existing formwork fastening devices are complicated to operate during fixing, causing inconvenience to construction.

Method used

An adjustable building formwork fastening device is adopted, which uses a suction cup and air cylinder system to achieve rapid fixation. The threaded rod is moved by the crank handle, and the suction cup is attached to the bottom of the formwork to form an "I" structure to reinforce the formwork connection.

Benefits of technology

It enables rapid fixing of the template joints, preventing collapse after cement pouring, and facilitating construction operations and transport.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of fastening devices, and discloses an adjustable building template fastening device which comprises a first fixing block and a second fixing block arranged on one side of the first fixing block, and suction cups are fixedly installed at the two ends of the bottom face of the first fixing block and the two ends of the bottom face of the second fixing block. An air cylinder is fixedly installed in the middle of the top face of the first fixing block and the middle of the top face of the second fixing block. The suckers on the first fixing block and the second fixing block are attached to the bottom of the template, then the crank is rotated to drive the threaded rod to rotate, and due to the fact that the crank is in threaded connection with the threaded groove in the connecting block, the threaded rod can be controlled to move towards the right side by continuously rotating the threaded rod. The threaded rod can drive the piston block in the air cylinder to move rightwards, air in the suction cup can be sucked into the air cylinder through the connecting pipe at the moment, the air pressure in the suction cup is reduced, the suction cup can be adsorbed to the bottom of the formwork, and therefore the device can be rapidly fixed to the formwork connecting position, and operation and use of constructors are facilitated.
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Description

Technical Field

[0001] This utility model relates to the field of fastening device technology, and in particular to an adjustable building formwork fastening device. Background Technology

[0002] Formwork is a temporary support structure, manufactured according to design requirements, to shape concrete structures and components into specified positions and geometric dimensions, maintain their correct position, and bear the self-weight of the formwork and external loads acting on it. The purpose of formwork engineering is to ensure the quality and safety of concrete projects, accelerate construction progress, and reduce project costs.

[0003] To prevent the formwork from collapsing due to the large amount of concrete poured at the top, existing formwork uses fastening devices installed at the formwork joints. However, traditional formwork fastening devices are complex to operate and are inconvenient for personnel to use. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing an adjustable building formwork fastening device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An adjustable building formwork fastening device includes a first fixing block and a second fixing block on one side of the first fixing block. Suction cups are fixedly installed at both ends of the bottom surface of the first and second fixing blocks. An air cylinder is fixedly installed at the middle position of the top surface of the first and second fixing blocks. A connecting pipe is fixedly installed at the output end of the air cylinder. The other end of the connecting pipe is connected to the suction cup. A scissor frame is provided between the first and second fixing blocks. A connecting rod is fixedly installed on the opposite side of the first and second fixing blocks. The two connecting rods are movably connected to each other.

[0007] As a further embodiment of this utility model, a piston block is movably installed in the air cylinder, and a threaded rod is movably installed at the right end of the piston block. The right side of the threaded rod penetrates the air cylinder, and a crank handle is fixedly installed at the right end of the threaded rod. A connecting block is provided between the crank handle and the air cylinder. The connecting block is fixedly installed on a first fixed block and a second fixed block. A threaded groove is provided on the connecting block, and the threaded groove is threadedly connected to the threaded rod.

[0008] As a further embodiment of this utility model, a control rod is movably installed in the first fixing block, and control blocks are fixedly installed at both ends of the shear frame near the first fixing block. The control blocks are movably installed on both sides of the control rod, and the control blocks and the control rod are threadedly connected.

[0009] As a further embodiment of this utility model, a sliding rod is fixedly installed in the second fixing block, and sliders are fixedly installed at both ends of the shear frame near the second fixing block, with the sliders movably mounted on the sliding rod.

[0010] As a further embodiment of this invention, the two ends of the control rod have opposite textures.

[0011] As a further embodiment of this utility model, a rotating block is provided on the side wall of the first fixed block at the position corresponding to the control rod, and the rotating block is fixedly connected to one end of the control rod.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] In this invention, suction cups on the first and second fixing blocks are attached to the bottom of the template. Then, by turning the handle, the threaded rod is rotated. Since the handle is threadedly connected to the threaded groove on the connecting block, the continuous rotation of the threaded rod can control the threaded rod to move to the right. The threaded rod will drive the piston block in the air cylinder to move to the right. At this time, the air in the suction cup will be drawn into the air cylinder through the connecting pipe. The air pressure in the suction cup will decrease, and the suction cup will adhere to the bottom of the template. The "I" structure formed by the first and second fixing blocks and the connecting rod can reinforce the template connection and prevent it from collapsing after cement is poured. This allows the device to be quickly fixed at the template connection, making it convenient for construction personnel to operate and use. Attached Figure Description

[0014] Figure 1 This is a structural schematic diagram of an adjustable building formwork fastening device proposed in this utility model;

[0015] Figure 2 This is a schematic diagram of the internal structure of an adjustable building formwork fastening device proposed in this utility model.

[0016] Figure 3 This utility model Figure 1 Enlarged view of point A in the middle;

[0017] Figure 4 This utility model Figure 2 Enlarged view of section B in the middle.

[0018] In the diagram: 1. First fixing block; 2. Second fixing block; 3. Suction cup; 4. Connecting rod; 5. Scissor frame; 6. Rotating block; 7. Air pump; 8. Connecting block; 9. Piston block; 10. Threaded rod; 11. Connecting pipe; 12. Slide rod; 13. Slider; 14. Control rod; 15. Control block; 16. Threaded groove; 17. Handle. Detailed Implementation

[0019] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0020] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] Reference Figure 1 - Figure 4 An adjustable building formwork fastening device includes a first fixing block 1 and a second fixing block 2 on one side of the first fixing block 1. Suction cups 3 are fixedly installed at both ends of the bottom surface of the first fixing block 1 and the second fixing block 2. An air cylinder 7 is fixedly installed at the middle position of the top surface of the first fixing block 1 and the second fixing block 2. A connecting pipe 11 is fixedly installed at the output end of the air cylinder 7. The other end of the connecting pipe 11 is connected to the suction cup 3. A shear frame 5 is provided between the first fixing block 1 and the second fixing block 2. A connecting rod 4 is fixedly installed on the opposite side of the first fixing block 1 and the second fixing block 2. The two connecting rods 4 are movably connected to each other.

[0023] In this embodiment, a piston block 9 is movably installed in the air cylinder 7. A threaded rod 10 is movably installed at the right end of the piston block 9. The right side of the threaded rod 10 penetrates the air cylinder 7. A crank handle 17 is fixedly installed at the right end of the threaded rod 10. A connecting block 8 is provided between the crank handle 17 and the air cylinder 7. The connecting block 8 is fixedly installed on the first fixing block 1 and the second fixing block 2. A threaded groove 16 is provided on the connecting block 8. The threaded groove 16 is threadedly connected to the threaded rod 10. By rotating the crank handle 17, the threaded rod 10 is driven to rotate. Since the crank handle 17 is threadedly connected to the threaded groove 16 on the connecting block 8, the continuous rotation of the threaded rod 10 can control the threaded rod 10 to move to the right. The threaded rod 10 will drive the piston block 9 in the air cylinder 7 to move to the right. At this time, the air in the suction cup 3 will be sucked into the air cylinder 7 through the connecting pipe 11. The air pressure in the suction cup 3 will decrease, and the suction cup 3 will be adsorbed on the bottom of the template, thereby quickly fixing the device at the template connection.

[0024] In this embodiment, a control rod 14 is movably installed in the first fixed block 1, and control blocks 15 are fixedly installed at both ends of the shear frame 5 near the first fixed block 1. The control blocks 15 are movably installed on both sides of the control rod 14, and the control blocks 15 and the control rod 14 are threadedly connected. The two ends of the control rod 14 have opposite textures. A slide rod 12 is fixedly installed in the second fixed block 2, and sliders 13 are fixedly installed at both ends of the shear frame 5 near the second fixed block 2. The sliders 13 are movably installed on the slide rod 12. A rotating block 6 is provided on the side wall of the first fixed block 1 at the position corresponding to the control rod 14. The rotating block 6 is fixedly connected to one end of the control rod 14. By rotating the rotating block 6, the control rod 14 is driven to rotate, and the control rod 14 can drive the control blocks 15 to move to both ends. At this time, the shear frame 5 will drive the first fixed block 1 and the second fixed block 2 to converge towards the middle, thereby reducing the size of the device and making it easy to carry.

[0025] From the above description, it can be seen that the above embodiments of this utility model achieve the following technical effects: When it is necessary to use the formwork fastening device for construction engineering, first move the device to the connection of the formwork, then attach the suction cups 3 on the first fixing block 1 and the second fixing block 2 to the bottom of the formwork, and then drive the threaded rod 10 to rotate by turning the handle 17. Since the handle 17 is threadedly connected to the threaded groove 16 on the connecting block 8, continuously rotating the threaded rod 10 can control the threaded rod 10 to move to the right. The threaded rod 10 will drive the piston block 9 in the air cylinder 7 to move to the right. At this time, the air in the suction cup 3 will be sucked into the air cylinder 7 through the connecting pipe 11. The air pressure in the suction cup 3 will decrease, and the suction cup 3 will be adsorbed on the bottom of the formwork, thereby quickly fixing the device to the formwork connection. The "I" structure formed by the first fixing block 1, the second fixing block 2, and the connecting rod 4 can reinforce the formwork connection and prevent it from collapsing after the cement is poured.

[0026] When it is necessary to carry it, the control rod 14 is rotated by rotating the rotating block 6. The control rod 14 can drive the control block 15 to move to both ends. At this time, the shear frame 5 will drive the first fixed block 1 and the second fixed block 2 to converge in the middle, thereby reducing the size of the device and making it easier to carry.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. An adjustable building formwork fastening device, comprising a first fixing block (1) and a second fixing block (2) on one side of the first fixing block (1), characterized in that, Suction cups (3) are fixedly installed at both ends of the bottom surface of the first fixing block (1) and the second fixing block (2). An air cylinder (7) is fixedly installed at the middle position of the top surface of the first fixing block (1) and the second fixing block (2). A connecting pipe (11) is fixedly installed at the output end of the air cylinder (7). The other end of the connecting pipe (11) is connected to the suction cup (3). A scissor frame (5) is provided between the first fixing block (1) and the second fixing block (2). A connecting rod (4) is fixedly installed on the opposite side of the first fixing block (1) and the second fixing block (2). The two connecting rods (4) are movably connected.

2. The adjustable building formwork fastening device according to claim 1, characterized in that, A piston block (9) is movably installed in the air cylinder (7). A threaded rod (10) is movably installed at the right end of the piston block (9). The right side of the threaded rod (10) penetrates the air cylinder (7). A crank handle (17) is fixedly installed at the right end of the threaded rod (10). A connecting block (8) is provided between the crank handle (17) and the air cylinder (7). The connecting block (8) is fixedly installed on the first fixing block (1) and the second fixing block (2). A threaded groove (16) is provided on the connecting block (8). The threaded groove (16) is threadedly connected to the threaded rod (10).

3. The adjustable building formwork fastening device according to claim 1, characterized in that, A control rod (14) is movably installed in the first fixed block (1). Control blocks (15) are fixedly installed at both ends of the shear frame (5) near the first fixed block (1). The control blocks (15) are movably installed on both sides of the control rod (14). The control blocks (15) and the control rod (14) are threadedly connected.

4. The adjustable building formwork fastening device according to claim 1, characterized in that, A slide rod (12) is fixedly installed in the second fixed block (2), and sliders (13) are fixedly installed at both ends of the shear frame (5) near the second fixed block (2). The sliders (13) are movably installed on the slide rod (12).

5. An adjustable building formwork fastening device according to claim 3, characterized in that, The two ends of the control lever (14) have opposite textures.

6. The adjustable building formwork fastening device according to claim 1, characterized in that, A rotating block (6) is provided on the side wall of the first fixed block (1) at the position corresponding to the control rod (14), and the rotating block (6) is fixedly connected to one end of the control rod (14).