Fastener for cast-in-place concrete member formwork

Abstract

The utility model provides a cast-in-place concrete member formwork fastener, and relates to the technical field of formwork fasteners. According to the concrete formwork fixing device, the first rotating disc is rotated to drive the two-way lead screw to rotate in the fixing block, the two-way lead screw can drive the two sets of long plates to slide towards the position where a concrete formwork is located on the outer wall of the limiting rod in the rotating process, and after the two sets of long plates slide by a certain distance, the two sides of the concrete formwork can be fixed; after fixing, a second rotating disc is sequentially rotated, a threaded rod is driven by the second rotating disc to rotate in a long plate, the threaded rod can drive a clamping plate to slide towards the position where a fixing plate is located in the long plate in the rotating process, and after sliding by a certain distance, the clamping plate can be matched with the fixing plate to fix the other two sides of the concrete formwork; and therefore, the fixing effect of the concrete formwork is improved, and displacement or deformation of the formwork in the pouring process due to the fact that the other two sides of the concrete formwork cannot be fixed is effectively avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of form fasteners, in particular to a form fastener for cast-in-situ concrete components. Background Technique

[0002] The form fastener for cast-in-situ concrete components is an essential accessory in concrete construction, mainly used to fix and support the formwork to ensure that the concrete maintains the required shape and size during the pouring process.

[0003] In the prior art, such as the "concrete form fixing device" with the Chinese patent number CN220267216U, it includes a core rod body, a fixed baffle vertically arranged at one end of the core rod body, and an auxiliary sliding frame that can move axially along the core rod body. A core rack is arranged on the side of the core rod body away from the fixed baffle along the axis of the rod body. Symmetric sliding tracks are arranged on both sides of the core rod body. The beneficial effects of this utility model are simple structure, convenient installation and disassembly, firm fixation, suitable for large-scale installation, and labor saving. However, when this device is used, it can only fasten the two sides of the concrete formwork, and the other two sides cannot be fixed, which will cause displacement or deformation of the formwork during the pouring process. This device still has deficiencies and needs to be improved. Content of the Utility Model

[0004] The utility model mainly provides a form fastener for cast-in-situ concrete components.

[0005] To achieve the above object, the utility model adopts the following technical scheme: A form fastener for cast-in-situ concrete components, comprising: fixing blocks, the number of the fixing blocks is two groups, symmetrically and fixedly installed with limiting rods on the inner sides of the two groups of fixing blocks, a bidirectional lead screw is installed inside the two groups of fixing blocks, the outer wall of the bidirectional lead screw is symmetrically thread-connected with long plates, one end of the bidirectional lead screw is fixedly installed with a first turntable, a fixing plate is fixedly installed on the inner side of the long plate, a threaded rod is installed inside the long plate, a clamping plate is thread-connected to the outer wall of the threaded rod, and one end of the threaded rod is fixedly installed with a second turntable.

[0006] Preferably, anti-slip grooves two are evenly opened on the outer wall of the second turntable, and anti-slip grooves one are evenly opened on the outer wall of the first turntable. The anti-slip effect when rotating the second turntable is improved through the anti-slip grooves two, and the anti-slip effect when rotating the first turntable is improved through the anti-slip grooves one.

[0007] Preferably, the bidirectional lead screw is connected to the fixing block through a bearing, and the threaded rod is connected to the long plate through a bearing. The rotation effect of the bidirectional lead screw and the threaded rod is improved through the bearing connection.

[0008] Preferably, the limiting rod is slidably connected to the long plate, and the limiting effect when adjusting the long plate is improved through the sliding connection.

[0009] Preferably, the clamping plate is slidably connected to the long plate, and the limiting effect during the adjustment of the clamping plate is improved through the sliding connection.

[0010] Preferably, an insertion plate is slidably connected inside the fixing plate and the clamping plate. An anti-slip pad is fixedly installed on one side of the insertion plate. A screw hole is formed through one side of the insertion plate, the fixing plate and the clamping plate, and a bolt is threadedly connected inside the screw hole. The anti-slip effect when the clamping plate and the fixing plate clamp the concrete formwork is improved through the anti-slip pad. By sequentially removing the bolts from the screw holes using tools, and then removing the anti-slip pad together with the insertion plate from inside the clamping plate and the fixing plate, the damaged anti-slip pad can be replaced after removal, thereby effectively avoiding the situation that the inability to replace the damaged anti-slip pad will affect the anti-slip effect when the clamping plate and the fixing plate clamp the concrete formwork.

[0011] Compared with the prior art, the advantages and positive effects of the present utility model are as follows:

[0012] 1. In the present utility model, by passing two groups of long plates through the combined concrete formwork, and then rotating the first turntable after passing through, the bidirectional lead screw is driven to rotate inside the fixed block by the first turntable. During the rotation of the bidirectional lead screw, the two groups of long plates will slide along the outer wall of the limiting rod towards the position where the concrete formwork is located. After sliding a certain distance, the two groups of long plates will fix both sides of the concrete formwork. After fixing, the second turntable is rotated in sequence. The threaded rod is driven to rotate inside the long plate by the second turntable. During the rotation of the threaded rod, the clamping plate will slide inside the long plate towards the position where the fixing plate is located. After sliding a certain distance, the clamping plate will cooperate with the fixing plate to fix the other two sides of the concrete formwork, thereby improving the fixing effect of the concrete formwork and effectively avoiding the displacement or deformation of the formwork during the pouring process due to the inability to fix the other two sides of the concrete formwork.

[0013] 2. In the present utility model, the anti-slip effect when the clamping plate and the fixing plate clamp the concrete formwork is improved through the anti-slip pad. When the anti-slip pad is damaged, the bolts can be sequentially removed from the screw holes using tools, and then the anti-slip pad together with the insertion plate can be removed from inside the clamping plate and the fixing plate. After removal, the damaged anti-slip pad can be replaced, thereby effectively avoiding the situation that the inability to replace the damaged anti-slip pad will affect the anti-slip effect when the clamping plate and the fixing plate clamp the concrete formwork. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic diagram of the overall structure of a formwork fastener for cast-in-place concrete components proposed by the present utility model;

[0015] Figure 2 is a formwork fastener for cast-in-place concrete components proposed by the present utility model Figure 1Enlarged view at position A;

[0016] Figure 3 This is an exploded structural schematic diagram of a formwork fastener for cast-in-place concrete members proposed by the present utility model;

[0017] Figure 4 This is a Figure 3 Enlarged view at position B;

[0018] Figure 5 This is a Figure 3 Enlarged view at position C.

[0019] Legend: 1. Fixed block; 2. Limit rod; 3. Bidirectional lead screw; 4. Long plate; 5. First turntable; 6. First anti-slip groove; 7. Fixed plate; 8. Threaded rod; 9. Clamping plate; 10. Second turntable; 11. Second anti-slip groove; 12. Insertion plate; 13. Anti-slip pad; 14. Screw hole; 15. Bolt. Detailed implementation manners

[0020] In order to more clearly understand the above-mentioned objects, features and advantages of the present utility model, the present utility model will be further described below with reference to the drawings and embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0021] In the following description, many specific details are set forth in order to fully understand the present utility model. However, the present utility model can also be implemented in other ways different from those described herein. Therefore, the present utility model is not limited to the limitations of the specific embodiments disclosed in the following specification.

[0022] Please refer to Figures 1-5, the present utility model provides a technical solution: a formwork fastener for cast-in-place concrete members, including: a fixed block 1, the number of fixed blocks 1 is two groups, symmetrically and fixedly installed with limiting rods 2 on the inner sides of the two groups of fixed blocks 1, a bidirectional lead screw 3 is installed inside the two groups of fixed blocks 1, the outer wall of the bidirectional lead screw 3 is symmetrically threadedly connected with long plates 4, one end of the bidirectional lead screw 3 is fixedly installed with a first turntable 5, a fixed plate 7 is fixedly installed on the inner side of the long plate 4, a threaded rod 8 is installed inside the long plate 4, the outer wall of the threaded rod 8 is threadedly connected with a clamping plate 9, and one end of the threaded rod 8 is fixedly installed with a second turntable 10. By passing the two groups of long plates 4 through the combined concrete formwork, after passing through, then rotate the first turntable 5. The first turntable 5 drives the bidirectional lead screw 3 to rotate inside the fixed block 1. During the rotation of the bidirectional lead screw 3, it will drive the two groups of long plates 4 to slide on the outer wall of the limiting rod 2 towards the location of the concrete formwork. After sliding a certain distance, the two groups of long plates 4 will fix the two sides of the concrete formwork. After fixing, then rotate the second turntable 10 in sequence. The second turntable 10 drives the threaded rod 8 to rotate inside the long plate 4. During the rotation of the threaded rod 8, it will drive the clamping plate 9 to slide inside the long plate 4 towards the location of the fixed plate 7. After sliding a certain distance, the clamping plate 9 will cooperate with the fixed plate 7 to fix the other two sides of the concrete formwork, thereby improving the fixing effect of the concrete formwork and effectively avoiding the displacement or deformation of the formwork during the pouring process caused by the inability to fix the other two sides of the concrete formwork.

[0023] As Figure 2 and Figure 5 shown, anti-slip grooves two 11 are evenly opened on the outer wall of the second turntable 10, and anti-slip grooves one 6 are evenly opened on the outer wall of the first turntable 5. The anti-slip effect when rotating the second turntable 10 is improved through the anti-slip grooves two 11, and the anti-slip effect when rotating the first turntable 5 is improved through the anti-slip grooves one 6.

[0024] As Figure 2 and Figure 5 shown, the bidirectional lead screw 3 is connected to the fixed block 1 through a bearing, and the threaded rod 8 is connected to the long plate 4 through a bearing. The rotation effect of the bidirectional lead screw 3 and the threaded rod 8 is improved through the bearing connection.

[0025] As Figure 1 shown, the limiting rod 2 is slidably connected to the long plate 4. The limiting effect when adjusting the long plate 4 is improved through the sliding connection.

[0026] As Figure 5 shown, the clamping plate 9 is slidably connected to the long plate 4. The limiting effect when adjusting the clamping plate 9 is improved through the sliding connection.

[0027] As Figure 4 and Figure 5As shown, a plug plate 12 is slidably connected inside the fixed plate 7 and the clamping plate 9. An anti-slip pad 13 is fixedly installed on one side of the plug plate 12. A screw hole 14 is formed through one side of the plug plate 12, the fixed plate 7, and the clamping plate 9. A bolt 15 is threadedly connected inside the screw hole 14. The anti-slip effect when the clamping plate 9 and the fixed plate 7 clamp the concrete formwork is improved through the anti-slip pad 13. By using tools to sequentially remove the bolts 15 from the screw holes 14, and then removing the anti-slip pad 13 together with the plug plate 12 from inside the clamping plate 9 and the fixed plate 7, the damaged anti-slip pad 13 can be replaced after removal, thereby effectively avoiding the situation that the inability to replace the damaged anti-slip pad 13 will affect the anti-slip effect when the clamping plate 9 and the fixed plate 7 clamp the concrete formwork.

[0028] The usage method and working principle of this device: When in use, first pass two groups of long plates 4 through the combined concrete formwork. After passing through, rotate the first turntable 5. The first turntable 5 drives the bidirectional lead screw 3 to rotate inside the fixed block 1. During the rotation of the bidirectional lead screw 3, it drives the two groups of long plates 4 to slide on the outer wall of the limit rod 2 towards the location of the concrete formwork. After sliding a certain distance, the two groups of long plates 4 will fix both sides of the concrete formwork. After fixing, rotate the second turntable 10 in sequence. The second turntable 10 drives the threaded rod 8 to rotate inside the long plate 4. During the rotation of the threaded rod 8, it drives the clamping plate 9 to slide inside the long plate 4 towards the location of the fixed plate 7. After sliding a certain distance, the clamping plate 9 will cooperate with the fixed plate 7 to fix the other two sides of the concrete formwork, thereby improving the fixing effect of the concrete formwork and effectively avoiding the situation that the inability to fix the other two sides of the concrete formwork will cause displacement or deformation of the formwork during the pouring process. When fixing the concrete formwork, the anti-slip effect when the clamping plate 9 and the fixed plate 7 clamp the concrete formwork can be improved through the anti-slip pad 13. When the anti-slip pad 13 is damaged, the bolts 15 can be sequentially removed from the screw holes 14 by using tools. After removal, the anti-slip pad 13 together with the plug plate 12 can be removed from inside the clamping plate 9 and the fixed plate 7, and the damaged anti-slip pad 13 can be replaced after removal, thereby effectively avoiding the situation that the inability to replace the damaged anti-slip pad 13 will affect the anti-slip effect when the clamping plate 9 and the fixed plate 7 clamp the concrete formwork.

[0029] The above are only the preferred embodiments of the present invention, and it is not a limitation to the present invention in other forms. Any person skilled in the art may use the disclosed technical content to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical solution content of the present invention, any simple modification, equivalent change, and modification made to the above embodiments based on the technical essence of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. A formwork fastener for cast-in-place concrete components, characterized in that Including: Fixed blocks (1), the number of the fixed blocks (1) is two groups, the inner sides of the two groups of fixed blocks (1) are symmetrically and fixedly installed with limit rods (2), a bidirectional lead screw (3) is installed inside the two groups of fixed blocks (1), the outer wall of the bidirectional lead screw (3) is symmetrically and threadedly connected with long plates (4), one end of the bidirectional lead screw (3) is fixedly installed with a first turntable (5), the inner sides of the long plates (4) are fixedly installed with fixing plates (7), a threaded rod (8) is installed inside the long plates (4), the outer wall of the threaded rod (8) is threadedly connected with clamping plates (9), and one end of the threaded rod (8) is fixedly installed with a second turntable (10).

2. The formwork fastener for cast-in-situ concrete members according to claim 1, characterized in that: Anti-slip grooves two (11) are evenly formed on the outer wall of the second turntable (10), and anti-slip grooves one (6) are evenly formed on the outer wall of the first turntable (5).

3. The formwork fastener for cast-in-place concrete members according to claim 1, characterized in that: The bidirectional lead screw (3) is connected with the fixed block (1) through a bearing, and the threaded rod (8) is connected with the long plate (4) through a bearing.

4. The formwork fastener for cast-in-place concrete members according to claim 1, wherein: The limit rod (2) is slidably connected with the long plate (4).

5. The in-situ concrete component formwork fastener according to claim 1, characterized in that: The clamping plate (9) is slidably connected with the long plate (4).

6. The formwork fastener for cast-in-place concrete members according to claim 1, wherein: An insertion plate (12) is slidably connected inside the fixing plate (7) and the clamping plate (9), an anti-slip pad (13) is fixedly installed on one side of the insertion plate (12), screw holes (14) are formed through one sides of the insertion plate (12), the fixing plate (7) and the clamping plate (9), and bolts (15) are threadedly connected inside the screw holes (14).

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