Telescopic lower column pier fence mold

Abstract

The utility model discloses a telescopic lower column pier enclosure mold which comprises an outer enclosure structure, the outer enclosure structure comprises four sets of groove-shaped outer baffles, the four sets of groove-shaped outer baffles and in-plate telescopic strips form a rectangular frame structure, each set of groove-shaped outer baffles comprises an upper U-shaped groove plate and a lower U-shaped groove plate, openings of the upper U-shaped groove plate and the lower U-shaped groove plate are opposite, and the upper U-shaped groove plate and the lower U-shaped groove plate are arranged at intervals. Every two adjacent sets of groove-shaped outer baffles are perpendicular to each other and rotationally connected, each in-plate telescopic strip is of a vertical plate structure, one in-plate telescopic strip is vertically arranged between each set of upper U-shaped groove plate and lower U-shaped groove plate, and a telescopic opening is formed in the middle of each set of groove-shaped outer baffles, so that the groove-shaped outer baffles can horizontally move and slide towards the two sides along the in-plate telescopic strips. And the inner supporting structure is in a cross shape, and the four supporting ends of the inner supporting structure abut against the inner walls of the four in-plate telescopic strips correspondingly. The fence mold can be telescopically adjusted according to the sizes of different column piers, so that the tightness of the fence mold is ensured, and the applicability of the mold is improved.

Description

Technical Field

[0001] This utility model relates to the field of construction technology for the foundation layer of lower column piers, and specifically to a retractable lower column pier enclosure mold. Background Technology

[0002] Construction refers to the production activities during the project implementation phase, which is the process of constructing various buildings. In the actual construction process, the construction of the lower column piers requires the use of timber to form molds on the foundation surface according to the actual dimensions of the site, followed by the pouring of the foundation concrete. During the actual operation of the workers, it was found that the thickness of the timber and the protective layer of the foundation were inconsistent, and the dimensions of the lower column piers were not uniform. This resulted in the need to make the formwork for the lower column piers according to the actual dimensions of each lower column pier. This not only wasted labor costs, but also failed to guarantee the flatness of the foundation construction. The timber on site was almost always used only once, and it was difficult to reuse it. Utility Model Content

[0003] The purpose of this utility model is to provide a retractable lower column pier enclosure mold to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides a retractable lower column pier enclosure mold, comprising: an outer protective structure, which includes four sets of grooved outer baffles, the four sets of grooved outer baffles and the inner telescopic strips forming a rectangular frame structure, each set of grooved outer baffles including an upper U-shaped grooved plate and a lower U-shaped grooved plate with openings opposite each other and spaced apart, two adjacent sets of grooved outer baffles being perpendicular to each other and rotatably connected, the inner telescopic strips being a vertical plate structure, with an inner telescopic strip vertically arranged between each set of upper U-shaped grooved plates and lower U-shaped grooved plates, and each set of grooved outer baffles having a telescopic opening in the middle, allowing the grooved outer baffles to slide horizontally to both sides along the inner telescopic strips; and an inner support structure, which is cross-shaped, with the four support ends of the inner support structure respectively abutting against the inner walls of the four inner telescopic strips.

[0005] In a preferred embodiment, the inner support structure includes a cross-shaped inner sleeve spiral rod, the outer end of which is threadedly connected to an inner support extension rod, and the outer end of which is threadedly connected to an inner support bracket.

[0006] In a preferred embodiment, the inner sleeve screw rod is a hollow round tube with threads on its inner wall. One end of the inner support extension rod has threads on its outer side, and the other end has threads on its inner side. The outer diameter of the inner support extension rod matches the inner diameter of the inner sleeve screw rod. The inner support bracket includes a long screw rod and a Z-shaped support plate. The long screw rod is threaded to the inner side of the inner support extension rod. The Z-shaped support plate is welded to the end of the long screw rod. The two side flanges of the Z-shaped support plate are in contact with the inner wall of the inner telescopic strip.

[0007] In a preferred embodiment, the width of the two side flanges of the zigzag support plate is less than the distance between the upper U-shaped groove plate and the lower U-shaped groove plate of the grooved outer baffle, so that there are gaps between the two side flanges of the zigzag support plate and the upper U-shaped groove plate and the lower U-shaped groove plate, respectively.

[0008] In a preferred embodiment, two adjacent sets of trough-shaped outer baffles are connected by unthreaded straight anchor rods, so that the trough-shaped outer baffles can rotate around the unthreaded straight anchor rods. Triangular welding irons are welded to the upper and lower ends of the inner side of the trough-shaped outer baffles so that the angle between adjacent trough-shaped outer baffles is fixed at 90°.

[0009] In a preferred embodiment, the width of the U-shaped groove of the upper U-shaped groove plate and the lower U-shaped groove plate is matched with the thickness of the inner expansion strip of the plate, and a 5mm expansion gap is left between the inner expansion strip of the plate and the inner wall of the U-shaped groove.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] This invention allows for the selection and assembly of suitable channel-shaped outer baffles and inner expansion strips based on the actual dimensions of the lower column pier. The channel-shaped outer baffle design facilitates easy installation and disassembly. Simultaneously, the channel-shaped outer baffle can slide along the inner expansion strip, enabling the outer enclosure structure to be adjusted for different column pier sizes. This ensures both the tightness of the enclosure mold and improves its applicability. Unthreaded straight anchor rods connect the four sets of channel-shaped outer baffles to form a stable frame. A cross-shaped inner support structure is inserted into the center of the enclosure mold. Appropriate inner support extension rods are selected for connection according to actual needs, allowing the inner support frame to be adjusted in length as required, thus adapting to the construction of column piers of different sizes. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0014] Figure 3 for Figure 2 Enlarged view of point B in the middle;

[0015] Figure 4 This is a schematic diagram of the inner sleeve type screw rod structure of this utility model;

[0016] Figure 5 This is a schematic diagram of the internal support extension rod structure of this utility model;

[0017] Figure 6 This is a schematic diagram of the internal support frame structure of this utility model.

[0018] Explanation of reference numerals in the attached figures:

[0019] 1. External enclosure structure; 11. Channel-shaped outer baffle; 12. Inner expansion strip; 111. Upper U-shaped channel plate; 112. Lower U-shaped channel plate; 2. Internal support structure; 21. Inner sleeve spiral rod; 22. Inner support extension rod; 23. Inner support bracket; 231. Long screw rod; 232. Z-shaped support plate; 3. Unthreaded straight anchor rod; 4. Triangular welded iron. Detailed Implementation

[0020] The technical solutions in the embodiments of this utility model will be clearly and completely described below. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0021] Example 1

[0022] like Figures 1 to 6 As shown, the telescopic lower column pier enclosure mold of the preferred embodiment of this utility model includes: an outer enclosure structure 1 and an inner support structure 2. The outer enclosure structure 1 includes four sets of grooved outer baffles 11. The four sets of grooved outer baffles 11 and the inner telescopic strips 12 form a rectangular frame structure. Each set of grooved outer baffles 11 includes an upper U-shaped grooved plate 111 and a lower U-shaped grooved plate 112 with openings opposite to each other and spaced apart. Adjacent sets of grooved outer baffles 11 are perpendicularly arranged and connected by unthreaded straight anchor rods 3. The inner telescopic strips 12 are vertical plate structures, with an inner telescopic strip 12 vertically arranged between each set of upper U-shaped grooved plates 111 and lower U-shaped grooved plates 112. Each set of grooved outer baffles 11 has a telescopic opening in the middle, allowing the grooved outer baffles 11 to slide laterally along the inner telescopic strips 12. This allows for adjustment of the length of each set of grooved outer baffles 11 according to different column pier sizes, thereby adjusting the overall enclosure size of the outer enclosure structure 1. The inner support structure 2 is cross-shaped, and the four support ends of the inner support structure 2 are respectively pressed against the inner wall of the inner extension strip 12 of the four plates to ensure the stability and sealing of the enclosure mold.

[0023] Furthermore, the inner support structure 2 includes a cross-shaped inner sleeve spiral rod 21. The outer end of the inner sleeve spiral rod 21 is threadedly connected to an inner support extension rod 22, and the outer end of the inner support extension rod 22 is threadedly connected to an inner support bracket 23. The inner sleeve spiral rod 21 is made of two hollow round tubes welded together. The inner wall of the hollow round tubes is threaded, and the thickness of the hollow round tubes is sufficient to meet the thread depth requirement and must not be less than 2mm. The diameter of the hollow round tubes is 20mm, and the length is 450mm. A 50mm thread is provided inside the connection point, allowing the inner support extension rod 22 to be screwed into the inner sleeve spiral rod 21. One end of the inner support extension rod 22 is threaded on the outer side, and the other end is threaded on the inner side. The outer diameter of the inner support extension rod 22 matches the inner diameter of the inner sleeve spiral rod 21, and the inner thread of the inner support extension rod 22 should be as continuous as possible to ensure sufficient extension and retraction length for the inner support bracket 23.

[0024] Furthermore, the inner support bracket 23 includes a long screw 231 and a Z-shaped support plate 232. The long screw 231 is threaded to the inner side of the inner support extension rod 22. The entire length of the long screw should be machined into a threaded post with a thread depth of not less than 2 mm. The Z-shaped support plate 232 is welded to the end of the long screw 231. The two side flanges of the Z-shaped support plate 232 are in contact with the inner wall of the inner telescopic strip 12. The width of the two side flanges of the Z-shaped support plate 232 is less than the distance between the upper U-shaped groove plate 111 and the lower U-shaped groove plate 112 of the groove-shaped outer baffle 11, so that there are gaps between the two side flanges of the Z-shaped support plate 232 and the upper U-shaped groove plate 111 and the lower U-shaped groove plate 112, respectively.

[0025] Furthermore, the two adjacent sets of grooved outer baffles 11 are connected by unthreaded straight anchor rods 3, so that the grooved outer baffles 11 can rotate around the unthreaded straight anchor rods 3. Triangular welding irons 4 are welded to the upper and lower ends of the inner side of the grooved outer baffles 11, so that the angle between the adjacent grooved outer baffles 11 is fixed at 90°.

[0026] Furthermore, the width of the U-shaped grooves of the upper U-shaped groove plate 111 and the lower U-shaped groove plate 112 matches the thickness of the inner telescopic strip 12, and a 5mm telescopic gap is left between the inner telescopic strip 12 and the inner wall of the U-shaped groove. The outer baffle plate 11 is an aluminum alloy plate bent at a depth of 5mm from the upper and lower sides towards the center of the plate at a 90° angle, forming the upper U-shaped groove plate 111 and the lower U-shaped groove plate 112. The U-shaped grooves of the upper U-shaped groove plate 111 and the lower U-shaped groove plate 112 tightly fasten the inner telescopic strip 12 to the inner side of the outer baffle plate 11, and make the outer baffle plate 11 slide linearly along the inner telescopic strip 12.

[0027] Example 2

[0028] In actual construction, the usage method of this retractable lower column pier enclosure mold is as follows:

[0029] First, based on the actual dimensions of the lower column pier, select suitable channel-shaped outer baffle 11 and inner expansion strip 12 for assembly. Due to the design of the channel-shaped outer baffle 11, it can be easily installed and disassembled. At the same time, the channel-shaped outer baffle 11 can slide relative to the inner expansion strip 12, allowing the enclosure mold to be adjusted for different column pier dimensions, ensuring the tightness of the enclosure and improving the applicability of the mold.

[0030] Then, the channel-shaped outer baffles 11 are connected using unthreaded straight anchor rods 3 to form a stable frame. Triangular welding irons 4 are welded to the upper and lower ends of the inner side of the channel-shaped outer baffles 11, so that the angle between two adjacent sets of channel-shaped outer baffles 11 is fixed at 90°, thereby further enhancing the stability and firmness of the enclosure mold.

[0031] Next, insert the inner sleeve spiral rod 21 into the center of the enclosure mold. Select a suitable inner support extension rod 22 for connection, as needed, so that the inner support frame 23 can be adjusted in length to accommodate column piers of different sizes. The zigzag support plate 232 of the inner support frame 23 should fully press against the inner telescopic strip 12 to ensure the stability and sealing of the enclosure mold.

[0032] Finally, the prefabricated retractable pier enclosure mold is placed at the construction location of the pier, and concrete is poured. Because the mold is made of aluminum alloy, the contact surface between the concrete base and the structure is smoother, resulting in a more aesthetically pleasing finished product. Furthermore, the mold can be reused multiple times, reducing construction costs and improving efficiency.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A retractable lower column pier enclosure mold, characterized in that: include: The outer enclosure structure (1) includes four sets of grooved outer baffles (11). The four sets of grooved outer baffles (11) and the inner telescopic strips (12) form a rectangular frame structure. Each set of grooved outer baffles (11) includes an upper U-shaped groove (111) and a lower U-shaped groove (112) with openings opposite to each other and spaced apart. Two adjacent sets of grooved outer baffles (11) are perpendicular to each other and rotatably connected. The inner telescopic strips (12) are vertical plate structures. An inner telescopic strip (12) is vertically arranged between each set of upper U-shaped groove (111) and lower U-shaped groove (112). Each set of grooved outer baffles (11) has a telescopic opening in the middle, so that the grooved outer baffles (11) can slide horizontally to both sides along the inner telescopic strips (12). The inner support structure (2) is cross-shaped, and the four support ends of the inner support structure (2) are respectively abutted on the inner wall of the inner extension strip (12) of the four plates.

2. The telescopic lower column pier enclosure mold according to claim 1, characterized in that: The inner support structure (2) includes a cross-shaped inner sleeve spiral rod (21), the outer end of which is threadedly connected to an inner support extension rod (22), and the outer end of which is threadedly connected to an inner support bracket (23).

3. The retractable lower column pier enclosure mold according to claim 2, characterized in that: The inner sleeve spiral rod (21) is a hollow round tube with threads on the inner wall. The inner support extension rod (22) has threads on the outer side of one end and threads on the inner side of the other end. The outer diameter of the inner support extension rod (22) matches the inner diameter of the inner sleeve spiral rod (21). The inner support bracket (23) includes a long screw rod (231) and a zigzag support plate (232). The long screw rod (231) is threaded to the inner side of the inner support extension rod (22). The zigzag support plate (232) is welded to the end of the long screw rod (231). The two side wings of the zigzag support plate (232) are in contact with the inner wall of the inner telescopic strip (12).

4. The retractable lower column pier enclosure mold according to claim 3, characterized in that: The width of the two side wing plates of the zigzag support plate (232) is less than the distance between the upper U-shaped groove plate (111) and the lower U-shaped groove plate (112) of the groove outer baffle (11), so that there are gaps between the two side wing plates of the zigzag support plate (232) and the upper U-shaped groove plate (111) and the lower U-shaped groove plate (112) respectively.

5. The telescopic lower column pier enclosure mold according to claim 1, characterized in that: The two adjacent sets of grooved outer baffles (11) are connected by unthreaded straight anchor rods (3), so that the grooved outer baffles (11) can rotate around the unthreaded straight anchor rods (3). The upper and lower ends of the inner side of the grooved outer baffles (11) are welded with triangular welding irons (4) so ​​that the angle between the adjacent grooved outer baffles (11) is fixed at 90°.

6. The telescopic lower column pier enclosure mold according to claim 1, characterized in that: The width of the U-shaped groove of the upper U-shaped groove plate (111) and the lower U-shaped groove plate (112) matches the thickness of the inner expansion strip (12), and the inner expansion strip (12) has a 5mm expansion gap with the inner wall of the U-shaped groove.

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