Steel structure stair kicking surface template

Abstract

The utility model discloses a steel structure stair kicking face formwork which comprises a formwork body, the formwork body is fixed to a stair side plate through a clamping and fixing device, and a cavity used for pouring concrete is formed among the formwork body, the stair side plate and a steel structure stair. The galvanized steel sheet formwork is mainly used for installation work of a stair flight kicking face in a steel structure stair on a construction site, the formed galvanized steel sheet is used for replacing a traditional wood formwork, pollution caused by on-site machining of the wood formwork is avoided, the number of turnover times and the concrete forming quality of the galvanized steel sheet formwork are far higher than those of the wood formwork, and construction efficiency is greatly improved. The method has great economic benefits. The arrangement number of the formworks can be adjusted according to the lengths and the widths of different ladder sections, operation of constructors is facilitated, wood is effectively saved, on-site processing of the wood formworks is reduced, the problem of generated environmental pollution is effectively solved, the green construction level of a construction site is improved, and the construction efficiency can be greatly improved and the concrete forming quality can be improved by using the device.

Description

Technical Field

[0001] The utility model relates to the technical field of building engineering construction, in particular to a stair riser template. Background Art

[0002] In recent years, with the development and progress of the times, people have increasingly demanded green construction on construction sites. To meet these requirements, construction sites are placing increasing emphasis on the efficiency and utilization of formwork. Conventional techniques for pouring concrete stairs often use traditional wooden formwork, which results in serious environmental pollution during on-site processing. Furthermore, wooden formwork has limited turnover and low concrete quality, resulting in significant economic issues.

[0003] For example, the Chinese patent publication number CN201820809327 discloses a combined formwork reinforcement device for cast-in-place concrete stairs, comprising a side formwork assembly located on one side of the stair riser formwork and a formwork reinforcement member on the other side, wherein the side formwork assembly comprises a side formwork and a wooden beam supported on the outside of the side formwork, the side formwork is provided with a positioning recess for positioning the end of the stair riser formwork, the formwork reinforcement member comprises a reinforcing diagonal rod extending along the inclination direction of the stairs and a reinforcing vertical rod connected to the reinforcing diagonal rod, the reinforcing vertical rod is connected to a positioning head, the end of the stair riser formwork is provided with a socket, and the positioning head is inserted into the socket.

[0004] The aforementioned patent describes a modular formwork reinforcement device for cast-in-place concrete stairs, which effectively shortens construction time and provides reliable and stable reinforcement. However, when pouring concrete for steel-structured stairs, the formwork is complex in structure and requires cumbersome installation, failing to address the environmental pollution issues associated with conventional wooden formwork. Utility Model Content

[0005] In view of the deficiencies in the above-mentioned background technology, the present invention proposes a steel structure stair riser template, which solves the problems in the prior art of complex template installation structure, cumbersome installation process, and environmental pollution caused by on-site processing of wooden templates.

[0006] The technical solution of the present utility model is achieved as follows:

[0007] A steel stair riser formwork comprises a formwork secured to the stair side panels via a clamping device. A cavity for pouring concrete is formed between the formwork, the stair side panels, and the steel staircase. The formwork is fixed to the riser of the steel staircase, resulting in a simple structure, easy installation, and simplified operation for construction personnel. The clamping device secures the formwork to the stair side panels, accelerating construction efficiency and improving the quality of concrete forming.

[0008] Furthermore, at least two templates are provided for each stair riser, and the two connected templates are connected by a connecting member. Different numbers of templates are installed according to the actual size of the stair riser and can be disconnected and connected by the connecting member, which facilitates multiple turnover and improves construction efficiency.

[0009] Furthermore, the connecting member includes a connecting lug plate, which is provided at the butt joint surface of two adjacent templates and is connected by fasteners. The templates are tightly connected by providing the connecting lug plate and the fasteners, thereby improving the quality of concrete pouring.

[0010] Furthermore, the fastener is a bolt member I, which penetrates the connecting lug plate and is locked by a lock nut. The connecting lug plates on adjacent templates are connected by the bolt member I and locked with the lock nut, which has a simple structure and convenient operation, thereby improving the connectivity between the templates.

[0011] Furthermore, the clamping device includes a U-shaped clamping plate and a clamping plate. A driving member is provided on the outer wall of the U-shaped clamping plate for driving the clamping plate to move relative to the U-shaped clamping plate. The clamping plate, under the action of the driving member, clamps the template to the stair side panels. The driving member causes the clamping plate to move within the U-shaped clamping plate, thereby ensuring that the template is fixed to the stair side panels and improving the stability of the template.

[0012] Furthermore, the U-shaped clamping plate includes a base plate and L-shaped side plates. The base plate is vertically connected to the vertical beam portion of the L-shaped side plate, and a driving member is provided on the horizontal beam portion of the L-shaped side plate. The driving member enables the clamping plate to move between the base plate and the horizontal beam portion of the L-shaped side plate, thereby clamping, ensuring stable clamping of the clamping device.

[0013] Furthermore, the inner side of the base plate is provided with an anti-slip pad, and the clamping plate is provided with a buffer pad. The anti-slip pad on the base plate prevents the clamping device from accidentally slipping, thereby improving safety. The buffer pad on the clamping plate reduces wear between the clamping plate and the template, thereby extending service life.

[0014] Furthermore, the driving member is a bolt member II. The crossbeam portion of the L-shaped side plate is provided with a threaded hole. The bolt member II is threadedly engaged with the threaded hole. One end of the bolt member II is fixedly connected to the clamping plate, and the other end is provided with a turning handle. The bolt member II is used to drive the clamping plate and the base plate to be clamped. The structure is simple and the cost is low. The turning handle is provided to facilitate the rotation of the bolt member II, making it convenient for workers to use.

[0015] Furthermore, the driving member is a cylinder, which is vertically connected to the crossbeam of the L-shaped side plate, and the free end of the cylinder is fixedly connected to the clamping plate. By arranging the cylinder to drive the clamping plate and the base plate to clamp, the operation is convenient and the construction efficiency is improved.

[0016] Furthermore, the template is made of galvanized steel plate, which reduces environmental pollution and ensures green construction.

[0017] The beneficial effects of the utility model are:

[0018] The utility model is fixedly connected to the riser of the steel structure staircase through the template, which has a simple structure, is easy to install, and is convenient for construction workers to operate. The template can be prefabricated as galvanized steel plates in the factory, reducing the pollution problems caused by on-site processing of wooden templates and improving the green construction level of the construction site. The utility model facilitates the fixation of the template and the side panels of the steel structure staircase by providing a clamping device, so that the template is firmly installed on the riser of the steel structure staircase, speeding up construction efficiency and improving the quality of concrete molding. The utility model provides a connecting member to enable detachable connection between the templates, facilitating multiple turnover use, reducing construction costs, and improving economic benefits. The utility model can install different numbers of templates according to actual conditions to replace the traditional wooden templates, which has a good concrete molding effect and effectively saves wood resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a schematic structural diagram of the connecting member of the utility model;

[0022] Figure 3 This is a schematic structural diagram of the clamping device of the present utility model;

[0023] 1. Formwork; 2. Clamping device; 21. L-shaped side panel; 22. Base plate; 23. Clamping plate; 3. Stair side panel; 4. Connecting member; 41. Connecting ear plate; 5. Bolt part I; 6. Locking nut; 7. Bolt part II. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] Example 1, in this embodiment, as Figure 1The figure shows a steel stair riser formwork, comprising a formwork 1 made of galvanized steel sheet. The formwork 1 can be prefabricated in a factory according to the length and width of the staircase for installation. The formwork 1 is secured to the staircase side panels 3 via a clamping device 2. The clamping device 2 clamps the formwork 1 to the staircase side panels 3, creating a cavity for pouring concrete between the formwork 1, the staircase side panels 3, and the steel staircase. The structure is simple and installation is convenient.

[0026] On the basis of the above embodiment, as a preferred embodiment, when at least two templates 1 are arranged corresponding to a stair riser, the two connected templates 1 are combined and connected by a connecting member 4. The clamping device 2 and the connecting member 4 make the template 1 detachable and installed on the stair riser, which is convenient for multiple turnover use.

[0027] Example 2 further improves upon Example 1. The connecting member 4 includes connecting lugs 41 fixedly connected to the butting surfaces of two adjacent formwork panels 1. This ensures a tight connection between the butting surfaces of adjacent formwork panels 1, with the connecting lugs 41 positioned correspondingly. Fasteners connect the connecting lugs 41, making assembly of the formwork panels 1 quick and easy, improving construction efficiency.

[0028] Based on the above embodiment, as a preferred embodiment, the fastener is a bolt member I5, and two bolt members I5 can be installed on each connecting lug plate 41. The bolt member I5 passes through the connecting lug plates 41 of two adjacent templates 1 and is locked to the connecting lug plates 41 of the adjacent templates 1 by a locking nut 6, thereby ensuring the tightness of the connection between the templates 1.

[0029] Example 3 further optimizes Example 1. The clamping device 2 includes a U-shaped bracket and a clamping plate 21. A driver is provided on the outer wall of the U-shaped bracket to move the clamping plate 21 relative to the bracket. The clamping plate 21 is positioned on the inner side of the U-shaped bracket and is moved within the bracket by the driver. Driven by the driver, the clamping plate 21 moves toward the opposite side within the U-shaped bracket, thereby clamping the formwork 1 to the stair side panel 3.

[0030] Based on the above embodiment, as a preferred embodiment, the U-shaped clamping plate includes a base plate 22 and L-shaped side plates 23. The base plate 22 is vertically connected to the vertical beam portion of the L-shaped side plates 23. The inner side of the base plate 22 is provided with an anti-slip pad to reduce friction on the base plate 22, thereby ensuring the stability of the fixing device 2. A driving member is provided on the crossbeam portion of the L-shaped side plates 23, which enables the clamping plate 21 to move between the base plate 22 and the crossbeam portion of the L-shaped side plates 23, thereby clamping. The clamping plate 21 is provided with a buffer pad to reduce wear between the clamping plate 21 and the template 1, thereby extending its service life.

[0031] Based on the above embodiment, as a preferred embodiment, the driving member is a bolt member II7. The crossbeam portion of the L-shaped side plate 23 is provided with a threaded hole. The bolt member II7 is threadedly engaged with the threaded hole, allowing the bolt member II7 to rotate on the L-shaped side plate 23. This simple structure and low cost are achieved. One end of the bolt member II7 is fixedly connected to the clamping plate 21, and the other end is provided with a handle. The handle facilitates the rotation of the bolt member II7, making it easy to operate and convenient for construction personnel. Specifically, by rotating the bolt member II7, the clamping plate 21 is moved between the base plate 22 and the L-shaped side plate 23, thereby completing the installation and removal of the formwork 1, allowing the formwork 1 to be used repeatedly and improving economic efficiency.

[0032] Example 4 is a further improvement on Example 3. The driving member is a cylinder, which is vertically connected to the crossbeam of the L-shaped side plate 23. The free end of the cylinder is fixedly connected to the clamping plate 21. The cylinder pushes the clamping plate 21 toward the bottom plate 22 to ensure the stability of the connection between the formwork 1 and the stair side plate 3, thereby improving construction efficiency.

[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A steel structure stair riser template, characterized by: The invention comprises a template (1), wherein the template (1) is fixed to a staircase side plate (3) via a clamping device (2), and a cavity for pouring concrete is formed between the template (1), the staircase side plate (3) and the steel structure staircase; At least two templates (1) are provided corresponding to a stair riser, and two adjacent templates (1) are connected via a connecting member (4); the connecting member (4) comprises a connecting lug (41), and the connecting lug (41) is provided at the butt joint surface of the two adjacent templates (1), and the connecting lugs (41) are connected via fasteners; The clamping device (2) comprises a U-shaped card plate and a clamping plate (21), and a driving member for driving the clamping plate (21) to move relative to the U-shaped card plate is provided on the outer side wall of the U-shaped card plate. Under the action of the driving member, the clamping plate (21) clamps the template (1) on the stair side plate (3); the U-shaped card plate comprises a bottom plate (22) and an L-shaped side plate (23), the bottom plate (22) is vertically connected to the vertical beam portion of the L-shaped side plate (23), and the driving member is provided on the horizontal beam portion of the L-shaped side plate (23).

2. The steel structure stair riser template according to claim 1 is characterized in that: The fastener is a bolt member I (5), which passes through the connecting ear plate (41) and is locked by a locking nut (6).

3. The steel structure stair riser template according to claim 1, characterized in that: An anti-slip pad is provided on the inner side of the bottom plate (22), and a buffer pad is provided on the clamping plate (21).

4. The steel structure stair riser template according to claim 3, characterized in that: The driving member is a bolt member II (7). The cross beam portion of the L-shaped side plate (23) is provided with a threaded hole. The bolt member II (7) is threadedly matched with the threaded hole. One end of the bolt member II (7) is fixedly connected to the clamping plate (21), and the other end is provided with a handle.

5. The steel structure stair riser template according to claim 3, characterized in that: The driving member is a cylinder, which is vertically connected to the crossbeam portion of the L-shaped side plate (23), and the free end of the cylinder is fixedly connected to the clamping plate (21).

6. The steel structure stair riser template according to any one of claims 1 to 5, characterized in that: The template (1) is a galvanized steel plate.

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