Formwork structure for casting fair-faced concrete stairs

Abstract

The utility model relates to the technical field of pouring formworks, and provides a formwork structure for pouring fair-faced concrete stairs, which comprises a bottom formwork, a first side formwork arranged at the lower end of the bottom formwork, second side formworks arranged on two sides of the bottom formwork, a pedal component covered on the top of each second formwork, and a reinforcing support component arranged on the outer side of each second side formwork. The reinforcing supporting assembly comprises a supporting plate used for abutting against the end of the second side formwork and the end of the pedal assembly and a plurality of supporting bases arranged at intervals in the length direction of the second side formwork, the supporting bases are connected with the bottom formwork through fasteners, supporting screws are connected to the supporting bases through threads, first rotary knobs are arranged at the outer ends of the supporting screws, and second rotary knobs are arranged at the outer ends of the first rotary knobs. According to the utility model, the end parts of the second side template and the pedal assembly can be supported, the supporting strength of the second side template is improved, the quality problem caused by insufficient supporting strength of the second side template is improved, and the second side template can also play a role in limiting the pedal assembly.

Description

Technical Field

[0001] The utility model relates to the technical field of casting templates, in particular to a template structure for casting plain concrete stairs. Background Art

[0002] Since plain concrete lacks decoration works after the formwork is removed, the formwork structure has a great impact on its pouring quality.

[0003] There are mainly closed casting method and open plug-in casting method for casting of plain concrete stairs. The open plug-in casting method is easy to cause the loss and overflow of concrete, the uniformity and density of concrete are poor, and the construction quality is difficult to guarantee. In order to ensure the construction quality, the closed casting method is currently adopted. The formwork adopted in the closed casting method usually includes a bottom formwork, a side formwork, a pedal assembly and a clamping steel pipe. The bottom formwork, the side formwork and the pedal assembly are enclosed to form a closed stair casting space, and the clamping steel pipe clamps the pedal assembly. In the existing closed casting formwork side formwork structure, the bottom formwork support strength and the clamping strength of the pedal assembly are often not too big problems. The side formwork at the lower end of the bottom formwork is small in size, and the support strength is usually not a problem. However, the side formworks on both sides of the bottom formwork are large in size, and the support strength is poor. Problems such as leakage are prone to occur, which affect the casting quality. Therefore, how to improve the support strength of the side formworks on both sides of the bottom formwork is a technical problem that technical personnel in this field need to solve urgently. Utility Model Content

[0004] The utility model aims to provide a template structure for pouring plain concrete stairs to solve the above-mentioned defects of the prior art.

[0005] The embodiments of the present invention are implemented by the following technical solutions:

[0006] A formwork structure for casting plain concrete stairs comprises a bottom formwork, a first side formwork is arranged at the lower end of the bottom formwork, second side formworks are arranged on both sides of the bottom formwork, a pedal assembly is covered on the top of the second formwork, a reinforcing support assembly is arranged on the outer side of the second side formwork, the reinforcing support assembly comprises a support plate for abutting against the second side formwork and the end of the pedal assembly, and a plurality of support seats arranged at intervals along the length direction of the second side formwork, the support seat is connected to the bottom formwork by fasteners, a support screw is threadedly connected to the support seat, a first knob is arranged at the outer end of the support screw, and a support block for abutting against the support plate is arranged at the inner end.

[0007] Optionally, the support plate is provided with a countersunk hole for accommodating the support block, and the outer dimensions of the countersunk hole are larger than the outer dimensions of the support block.

[0008] Optionally, a first connecting platform is provided at the outer bottom of the second side template, and the first connecting platform is connected to the bottom template via fasteners.

[0009] Optionally, a second connecting platform is provided at the outer bottom of the first side template, and the second connecting platform is connected to the bottom template via fasteners.

[0010] Optionally, two groups of limiting steel pipes are arranged in parallel on the top of the pedal assembly, and the top of each support seat is connected to a mounting seat via a fastener, and a pressure block for clamping adjacent limiting steel pipes is provided below the mounting seat. The top of the pressure block is fixedly connected to a guide rod and rotatably connected to a clamping screw, the guide rod is slidably connected to the mounting seat, the clamping screw is threadedly connected to the mounting seat, and a second knob is provided at the upper end of the clamping screw.

[0011] Optionally, the pedal assembly includes a flat cover plate and a plurality of right-angle cover plates arranged at the lower end of the second side template.

[0012] Optionally, the ends of the transverse sections of the right-angle cover plate and the ends of the flat cover plate are both provided with positioning notches, and the positioning notches can cooperate with the ends of the vertical sections of adjacent right-angle cover plates.

[0013] Optionally, the second side template is provided with a positioning groove that cooperates with the flat cover plate.

[0014] The technical solution of the present utility model has at least the following advantages and beneficial effects: in the present utility model, the second side formwork and the end of the pedal assembly can be supported by the reinforcing support assembly arranged on the outer side of the second side formwork, which not only improves the supporting strength of the second side formwork and improves the quality problems caused by insufficient supporting strength of the second side formwork, but also the second side formwork can play a role in limiting the pedal assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 A schematic diagram of a template structure for casting a plain concrete staircase provided by the utility model;

[0017] Figure 2 This is an exploded view of the template body;

[0018] Figure 3 Exploded view of the reinforcement support assembly;

[0019] Figure 4 It is a schematic diagram of the installation structure of the pressing block;

[0020] Icon: 1-bottom template, 2-first side template, 2a-second connecting platform, 3-second side template, 3a-first connecting platform, 3b-positioning groove, 4-pedal assembly, 401-flat cover plate, 402-right angle cover plate, 403-positioning notch, 5-reinforced support assembly, 501-support plate, 501a-countersunk hole, 502-support seat, 503-support screw, 504-support block, 505-first knob, 6-limiting steel pipe, 7-mounting seat, 8-pressure block, 9-guide rod, 10-tightening screw, 11-second knob. DETAILED DESCRIPTION

[0021] A formwork structure for casting a plain concrete staircase comprises a bottom formwork 1, a first side formwork 2 is arranged at the lower end of the bottom formwork 1, second side formworks 3 are arranged on both sides of the bottom formwork 1, and a pedal assembly 4 is covered on the top of the second formwork. For the convenience of description, the bottom formwork 1, the first side formwork 2, the second side formwork 3 and the pedal assembly 4 are collectively referred to as a formwork body (e.g. Figure 2 shown).

[0022] It is worth mentioning that most of the existing templates are glued, which is not convenient for disassembly and reuse. For this reason, in this embodiment, a first connecting platform 3a is provided at the outer bottom of the second side template 3, and the first connecting platform 3a can be formed into a whole with the second side template 3 by gluing, and the first connecting platform 3a is connected to the bottom template 1 by fasteners; a second connecting platform 2a is provided at the outer bottom of the first side template 2, and the second connecting platform 2a is connected to the bottom template 1 by fasteners, and the second connecting platform 2a can be formed into a whole with the first side template 2 by gluing. In actual applications, the above-mentioned fasteners can be bolts or screws. It should be understood that when the fasteners are bolts, through holes are set at corresponding positions of the two connected parts. When the fasteners are screws and the two connected parts are wood, through holes are also set at corresponding positions of the two connected parts, but a threaded sleeve is embedded in the through hole of one of the parts.

[0023] Reference again Figure 2 The pedal assembly 4 includes a flat cover plate 401 and a plurality of right-angle cover plates 402 arranged at the lower end of the second side template 3. The ends of the transverse sections of the right-angle cover plates 402 and the ends of the flat cover plates 401 are provided with positioning notches 403, and the positioning notches 403 can cooperate with the ends of the vertical sections of the adjacent right-angle cover plates 402. It is worth noting that, with such an arrangement, on the one hand, the vertical sections of the right-angle cover plates 402 are blocked by the transverse ends of the adjacent right-angle cover plates 402, thereby improving the supporting strength of the right-angle cover plates 402. On the other hand, it also facilitates the positioning and installation of the right-angle cover plates 402.

[0024] The second side template 3 is provided with a positioning groove 3b matched with the flat cover plate 401. Such a configuration can limit the flat cover plate 401 and restrict the displacement of the pedal assembly 4 in the oblique downward direction.

[0025] refer to Figure 1 and Figure 3 A reinforcing support assembly 5 is provided on the outer side of the second side formwork 3, and the reinforcing support assembly 5 includes a support plate 501 and support seats 502 arranged at intervals along the length direction of the second side formwork 3. The support seat 502, the bottom formwork 1 and the first connecting platform 3a are connected by fasteners (such as bolts). A support screw 503 is threadedly connected to the support seat 502. The outer end of the support screw 503 is provided with a first knob 505, and the inner end is provided with a support block 504 for tightening the support plate 501.

[0026] It is worth mentioning that by turning the first knob 505, the support block 504 can be moved closer to or away from the support plate 501, thereby pressing against or loosening the support plate 501, which is convenient for disassembly and assembly. When the support block 504 presses against the support plate 501, the support plate 501 presses against the second side template 3 and the end of the pedal assembly 4, which not only improves the supporting strength of the second side template 3, but also improves the quality problems caused by insufficient supporting strength of the second side template 3, and the second side template 3 can also play a role in limiting the pedal assembly 4.

[0027] In this embodiment, the support plate 501 is provided with a countersunk hole 501a for accommodating the support block 504. It is worth mentioning that in actual applications, the surface of the support block 504 contacting the countersunk hole 501a can be provided with an object such as a rubber pad to increase friction. The provision of the countersunk hole 501a limits the approximate position of the support plate 501, making installation easier. Moreover, the outer dimensions of the countersunk hole 501a are larger than those of the support block 504, thereby avoiding processing errors that cause the support block 504 to be unable to enter the countersunk hole 501a.

[0028] Furthermore, the outer dimensions of the countersunk hole 501a are larger than the outer dimensions of the support block 504, that is, the support block 504 can rotate smoothly in the countersunk hole 501a. The specific shapes of the countersunk hole 501a and the support block 504 are not limited. Preferably, in this embodiment, the countersunk hole 501a is a round hole and the support block 504 is also round.

[0029] refer to Figure 1 Two groups of limit steel pipes 6 are arranged side by side on the top of the pedal assembly 4. In this embodiment, each group of limit steel pipes 6 may include two steel pipes, and the two steel pipes are connected into a whole by tension bolts (not shown). Figure 1 and Figure 4 The top of each support seat 502 is connected to a mounting seat 7 by fasteners (such as bolts and screws) for easy disassembly and assembly. A pressing block 8 for pressing the adjacent limiting steel pipe 6 is provided below the mounting seat 7. It should be understood that the pressing block 8 is provided with an arc-shaped groove matching the limiting steel pipe 6. In practical applications, objects such as rubber pads can also be provided on the inner wall of the arc-shaped groove to increase friction.

[0030] The top of the pressing block 8 is fixedly connected with a guide rod 9 and rotatably connected with a clamping screw 10. Specifically, the guide rod 9 can be connected to the top of the pressing block 8 by threads, a T-head is arranged at the lower end of the clamping screw 10, and the top of the pressing block 8 is arranged at a T-slot matched with the T-head, and the T-head can rotate in the T-slot, the guide rod 9 is slidably connected to the mounting seat 7, the clamping screw 10 is connected to the mounting seat 7 by threads, and a second knob 11 is arranged at the upper end of the clamping screw 10, and the pressing block 8 can be driven to approach or move away from the limiting steel pipe 6 by rotating the second knob 11, so as to realize clamping and loosening.

[0031] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A formwork structure for casting a plain concrete staircase, comprising a bottom formwork, a first side formwork is provided at the lower end of the bottom formwork, second side formworks are provided on both sides of the bottom formwork, and a pedal assembly is covered on the top of the second formwork, characterized in that: A reinforcing support assembly is provided on the outer side of the second side template, and the reinforcing support assembly includes a support plate for abutting against the second side template and the end of the pedal assembly, and a plurality of support seats arranged at intervals along the length direction of the second side template, the support seat is connected to the bottom template by fasteners, and a support screw is threadedly connected to the support seat, a first knob is provided at the outer end of the support screw, and a support block for abutting against the support plate is provided at the inner end.

2. The formwork structure for casting plain concrete stairs according to claim 1 is characterized in that: The support plate is provided with a countersunk hole for accommodating the support block, and the outer dimensions of the countersunk hole are larger than the outer dimensions of the support block.

3. The formwork structure for casting plain concrete stairs according to claim 1 is characterized in that: A first connecting platform is provided at the outer bottom of the second side template, and the first connecting platform is connected to the bottom template via a fastener.

4. The formwork structure for casting plain concrete stairs according to claim 1 is characterized in that: A second connecting platform is provided at the outer bottom of the first side template, and the second connecting platform is connected to the bottom template via a fastener.

5. The formwork structure for casting plain concrete stairs according to claim 1 is characterized in that: Two groups of limiting steel pipes are arranged in parallel on the top of the pedal assembly. The top of each support seat is connected to a mounting seat via a fastener. A pressure block for clamping adjacent limiting steel pipes is provided below the mounting seat. The top of the pressure block is fixedly connected to a guide rod and rotatably connected to a clamping screw. The guide rod is slidably connected to the mounting seat, the clamping screw is threadedly connected to the mounting seat, and a second knob is provided on the upper end of the clamping screw.

6. The formwork structure for casting plain concrete stairs according to claim 1, characterized in that: The pedal assembly comprises a flat cover plate and a plurality of right-angle cover plates arranged at the lower end of the second side template.

7. The formwork structure for casting fair-faced concrete stairs according to claim 6, characterized in that: The ends of the transverse sections of the right-angle cover plate and the ends of the flat cover plate are both provided with positioning notches, and the positioning notches can be matched with the ends of the vertical sections of the adjacent right-angle cover plates.

8. The formwork structure for casting plain concrete stairs according to claim 6, characterized in that: The second side template is provided with a positioning groove matched with the flat cover plate.

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