Cast-in-place stair formwork reinforcing device

Abstract

The utility model discloses a cast-in-place stair formwork reinforcing device which comprises a step formwork, a stair kicking face formwork and side formwork assemblies located on the two sides of the stair kicking face formwork, the side formwork assemblies comprise stair side plates, a plurality of clamping grooves are formed in the stair side plates, battens are arranged at the two ends of the step formwork in a protruding mode, and the battens are connected with the stair kicking face formwork. The battens are connected with the clamping grooves in a clamped mode, step-by-step fasteners are arranged on the step formworks in parallel, and the side formwork assemblies on the two sides are connected into the step-by-step fasteners in a clamped mode. The cast-in-place stair formwork reinforcing device is simple in structure, surface finishing of the reinforcing device is convenient and fast, and the problems of deformation, bending, sinking and the like in a traditional stair reinforcing mode are effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, in particular to a cast-in-place staircase formwork reinforcement device. Background Art

[0002] Stairs are components used for vertical transportation between floors in buildings. They are used for transportation between floors and when there is a large height difference. They are composed of continuous steps, platforms, and enclosure structures. At present, when constructing stair treads, most of the stair tread templates used are made of wooden templates spliced ​​and fixed with iron nails. When the poured concrete is completely solidified, it is difficult to demould. In addition, during the construction process in the field of construction, the traditional wooden template cast-in-place stair reinforcement method has problems such as difficulty in finishing, easy deformation and sinking, which affects the construction of subsequent processes.

[0003] Therefore, it is necessary to provide a cast-in-place staircase formwork reinforcement device to solve the above problems. Utility Model Content

[0004] In order to overcome the deficiencies of the prior art, the utility model provides a cast-in-place stair formwork reinforcement device, which has a simple structure and is easy to close. It also effectively solves the problems of deformation, bending and sinking in traditional stair reinforcement methods.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] A cast-in-place stair formwork reinforcement device comprises a tread formwork, a stair riser formwork and side formwork assemblies located on both sides of the stair riser formwork, the side formwork assemblies comprising stair side panels, the stair side panels being provided with a plurality of slots, wooden squares being protrudingly provided at both ends of the tread formwork, the wooden squares being snap-connected with the slots, step-by-step tighteners being arranged in parallel on the tread formwork, and the side formwork assemblies on both sides being snap-connected in the step-by-step tighteners.

[0007] As a further improvement of the above technical solution, the stair riser template is inclined, the stair side panels are parallel to the stair riser template, and a plurality of the card slots are horizontally spaced along the length direction of the stair side panels.

[0008] As a further improvement of the above technical solution, the step template includes a long square wood and a black template, the black template is arranged at both ends of the long square wood, and the wooden squares are arranged at the bottom of both ends of the long square wood.

[0009] As a further improvement of the above technical solution, the side form assembly also includes a clamping plate, which is arranged on the outer side of the stair side panel, and clamping plates are arranged above and below the wooden square.

[0010] As a further improvement of the above technical solution, a plurality of the step-by-step tighteners are provided, and the plurality of step-by-step tighteners are respectively provided at the upper and lower ends of the stair riser template, and the two ends of the step-by-step tighteners are clamped with the clamping plate.

[0011] As a further improvement of the above technical solution, the step-by-step tightener includes a clamping rod, a clamping hook, a steel bar and a movable clamping head. The clamping rod and the clamping hook are connected by the steel bar, and the movable clamping head is sleeved on the clamping rod.

[0012] As a further improvement of the above technical solution, when the step-by-step tightening is performed, the hook and the movable clamp are respectively clamped with the clamping plate.

[0013] As a further improvement of the above technical solution, a formwork frame is also provided at the bottom of the stair riser formwork.

[0014] The beneficial effects of the utility model are:

[0015] The utility model arranges a plurality of slots on the side panels of the stairs, and wooden squares are arranged on both sides of the step template. The wooden squares are clamped in the slots so that the step template is firmly installed on the side panels of the stairs. At the same time, clamping plates are arranged on the inner and outer sides of the side panels of the stairs, and are clamped and fixed step by step. The structure is simple and it is convenient to reinforce the template surface. Compared with the traditional method, the structure of the reinforcement device is stable, and it is ensured that the riser is not easily deformed, bent and sunk during the up and down passage of people. In addition, there is no need to use iron wire or wooden squares to pull through and reinforce the middle of the tread, which reduces obstacles in the middle. After the concrete is poured, the surface is convenient and smooth, and the molding effect is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0017] Figure 1 It is a side view structural schematic diagram of the stair formwork reinforcement device of the utility model;

[0018] Figure 2 It is a front view structural schematic diagram of the stair formwork reinforcement device of the utility model;

[0019] Figure 3 It is a structural schematic diagram of the side mold assembly of the utility model;

[0020] Figure 4 It is a structural schematic diagram of the staircase side plate of the utility model;

[0021] Figure 5 It is a side view structural schematic diagram of the step template of the utility model;

[0022] Figure 6 It is a front view structural schematic diagram of the step template of the utility model;

[0023] Figure 7 It is a schematic diagram of the structure of the utility model step by step.

[0024] Figure numerals: 1. step formwork; 11. wooden square; 12. long square wood; 13. black formwork; 2. side formwork assembly; 21. stair side panel; 211. slot; 22. clamping plate; 3. stair riser formwork; 4. step-by-step tightening; 41. clamping rod; 42. hook; 43. steel bar; 44. movable clamp; 5. formwork frame. DETAILED DESCRIPTION

[0025] The following will be combined with the embodiments and drawings to clearly and completely describe the concept, specific structure and technical effects of the utility model, so as to fully understand the purpose, characteristics and effects of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, other embodiments obtained by technicians in this field without creative work are all within the scope of protection of the utility model. In addition, all the connection / connection relationships involved in the patent do not refer to the direct connection of components, but refer to the fact that according to the specific implementation situation, a better connection structure can be formed by adding or reducing connection accessories. For example, fixed connection / fixed installation can be selected according to the needs of screw connection, bolt connection, pin connection, key connection, bonding, mortise and tenon connection, welding, riveting and other methods. For example, detachable connection can be selected according to the needs of screw connection, bolt connection, threaded connection, snap connection, mortise and tenon connection, Velcro connection and other methods. The various technical features in the creation of the utility model can be combined interactively without conflicting with each other.

[0026] Reference Figure 1 , Figure 2 A cast-in-place stair formwork reinforcement device comprises a tread formwork 1, a side formwork assembly 2 and a stair riser formwork 3, the side formwork assemblies 2 are arranged on both sides of the stair riser formwork 3, and a plurality of the tread formworks 1 are evenly arranged along the extension direction of the stairs, wherein the side formwork assembly 2 comprises a stair side panel 21, and a plurality of slots 211 are arranged on the stair side panel 21, wooden squares 11 are protrudingly provided at both ends of the tread formwork 1, and the wooden squares 11 are clamped in the slots 211, and a plurality of step-by-step tightening 4 are arranged above and below the stair riser formwork 3, the step-by-step tightening 4 is arranged parallel to the step formwork 1, and the side formwork assemblies 2 on both sides are clamped in the step-by-step tightening 4. Compared with the traditional practice, the stair formwork reinforcement device of the utility model reinforces the stair formwork by means of snap connection and clamping. The structural reinforcement operation is simple and can also ensure that the stairs are not prone to deformation, bending and sinking when people go up and down. In addition, the structure of the step-by-step tightening 4 is simple, so there is no need to use iron wire or wooden squares to pull through and reinforce the middle of the tread, reducing obstacles in the middle. After the concrete is poured, the surface is convenient and smooth, and the molding effect is good.

[0027] Reference Figure 3-Figure 6 In an embodiment of the utility model, the stair riser template 3 is tilted, the stair side panel 21 is parallel to the stair riser template 3, and then a slot 211 is opened on the stair side panel 21 according to the thickness of the step template 1 and the height of the step, and a plurality of the slots 211 are horizontally spaced along the length direction of the stair side panel 21, so that the step template 1 can be vertically connected in the slot 211 of the stair side panel 21, and the stair treads are formed after the concrete is poured and solidified.

[0028] Specifically, the step template 1 includes a long square wood 12 and a black template 13. The long square wood 12 and the black template 13 are cut and reinforced according to the stair width and step height dimensions in the drawing. The two black templates 13 are located on the outside of the long square wood 12 and reinforced with iron nails to form a step baffle to ensure the flatness of the tread. The wooden square 11 is arranged at the bottom of both ends of the long square wood 12, and the step template 1 is installed in the slot 211 of the stair side panel 21 to ensure that the step template 1 is firmly installed.

[0029] Specifically, the side form assembly 2 also includes a clamping plate 22, which is arranged on the outside of the stair side panel 21, and the clamping plate 22 is located above and below the wooden square 11, and then reinforced and installed using a step-by-step tightener 4 to ensure that the reinforcement on both sides of the stairs is uniform and firm.

[0030] Reference Figure 7 In an embodiment of the utility model, a plurality of the step-by-step tightening devices 4 are provided, and the plurality of step-by-step tightening devices 4 are respectively provided at the upper and lower ends of the stair riser template 3, and the two ends of the step-by-step tightening devices 4 are clamped with the clamping plate 22 to ensure that the stair reinforcement is evenly and firmly stressed.

[0031] Specifically, the step-by-step tightening 4 includes a clamping rod 41, a hook 42, a steel bar 43 and an active clamping head 44. The length of the buckle of the extra-long step-by-step tightening 4 is calculated according to the width of the stairs. The common step-by-step tightening 4 can be cut and separated at both ends to form a clamping rod 41 and a hook 42. The broken step-by-step tightening 4 is then lengthened and welded with the steel bar 43 to form an extra-long step-by-step tightening 4, thereby ensuring that the step-by-step tightening 4 can cross the stair surface for clamping. The active clamping head 44 is sleeved on the clamping rod 41. When the step-by-step tightening 4 is reinforced, the active clamping head 44 is adjusted to a suitable position so that the hook 42 and the active clamping head 44 are respectively clamped with the clamping plate 22. When disassembling, the active clamping head 44 can be loosened by using vibration and impact elasticity, thereby increasing the distance between the active clamping head 44 and the hook 42 for disassembly.

[0032] Reference Figure 1In an embodiment of the utility model, a formwork frame 5 is also provided at the bottom of the stair riser formwork 3 to support the formwork laid at the bottom of the stairs, thereby further avoiding the problem of deformation or sinking of the stairs.

[0033] The above is a specific description of the preferred implementation of the utility model, but the invention of the utility model is not limited to the described embodiments. Technical personnel familiar with the field can also make various equivalent deformations or substitutions without violating the spirit of the utility model. These equivalent deformations or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A cast-in-place stair formwork reinforcement device, comprising a step formwork, a stair riser formwork and side formwork assemblies located on both sides of the stair riser formwork, characterized in that: The side formwork assembly includes a stair side panel, a plurality of slots are provided on the stair side panel, wooden squares are protruding at both ends of the step template, the wooden squares are snap-connected with the slots, step fasteners are parallelly provided on the step template, and the side formwork assemblies on both sides are snap-connected in the step fasteners.

2. A cast-in-place staircase formwork reinforcement device according to claim 1, characterized in that: The stair riser template is tilted, the stair side panels are parallel to the stair riser template, and a plurality of the card slots are horizontally spaced along the length direction of the stair side panels.

3. A cast-in-place staircase formwork reinforcement device according to claim 1, characterized in that: The step template comprises a long square wood and a black template. The black template is arranged at both ends of the long square wood, and the wooden squares are arranged at the bottoms of both ends of the long square wood.

4. A cast-in-place staircase formwork reinforcement device according to claim 1, characterized in that: The side form assembly also includes a clamping plate, which is arranged on the outer side of the stair side plate, and clamping plates are arranged above and below the wooden squares.

5. A cast-in-place staircase formwork reinforcement device according to claim 4, characterized in that: There are multiple step-by-step tightening devices, which are respectively arranged at the upper and lower ends of the stair riser template, and the two ends of the step-by-step tightening devices are clamped with the clamping plate.

6. A cast-in-place staircase formwork reinforcement device according to claim 5, characterized in that: The step-by-step tightener comprises a clamp rod, a clamp hook, a steel bar and a movable clamp head. The clamp rod and the clamp hook are connected by the steel bar, and the movable clamp head is sleeved on the clamp rod.

7. A cast-in-place staircase formwork reinforcement device according to claim 6, characterized in that: When the step-by-step tightening is performed, the hook and the movable clamp are respectively clamped with the clamping plate.

8. The cast-in-place staircase formwork reinforcement device according to claim 1, characterized in that: A formwork frame is also provided at the bottom of the stair riser template.

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