A new stair form adjustable reinforcing device

By designing limiting and stabilizing components, the problem of insufficient stability in existing stair formwork is solved, the stabilization effect of connecting plates and side plates is enhanced, and the overall stability of stair formwork is improved.

CN224379400UActive Publication Date: 2026-06-19NO 1 CONSTR ENG CO LTD OF CHINA CONSTR THIRD ENG BUREAU CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NO 1 CONSTR ENG CO LTD OF CHINA CONSTR THIRD ENG BUREAU CO LTD
Filing Date
2025-07-23
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

In existing stair formwork reinforcement devices, the limiting column size is small and the spring size is limited, resulting in an unsatisfactory stabilization effect and making it difficult to ensure the high efficiency and stability of the stair formwork.

Method used

The limiting component includes a sliding block and a connecting arm. The sliding block is inserted into the insertion hole of the connecting plate through the plug-in post on the sliding block, and is engaged by the bolt limiting hole. Combined with the snap-fit ​​block and the covering plate of the stabilizing component, the stability of the connecting plate and the side plate is enhanced.

Benefits of technology

This achieves a stable connection between the connecting plate and the side plate, preventing detachment and improving the overall stability and sturdiness of the stair formwork.

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Abstract

This utility model relates to a novel adjustable reinforcement device for stair formwork, belonging to the field of stair formwork construction technology. It solves the problem of poor stability of existing stair formwork. The reinforcement device is used to reinforce stair formwork, which includes side plates and connecting plates. The side plates have an open groove and an arc-shaped groove, which are connected. The end of the connecting plate is inserted into the open groove, and a limiting component is installed in the arc-shaped groove. The limiting component limits the connecting plate, ensuring the stability between the connecting plate and the side plate. The limiting component includes a sliding block and a connecting arm. A plug-in post is installed on the sliding block, and a plug hole is provided on the connecting plate. The plug-in post is inserted into the plug hole to ensure the stability between the connecting plate and the side plate. A limiting hole is provided on the side plate, and the sliding block is limited by the cooperation of bolts with the limiting hole. The device also includes a stabilizing component to further limit the connecting plate, ensuring the stability of the stair formwork.
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Description

Technical Field

[0001] This utility model relates to the field of stair formwork construction technology, specifically to a novel adjustable reinforcement device for stair formwork. Background Technology

[0002] The reinforcement device for stair formwork is used to reinforce the stair formwork to ensure its stability. The existing stair formwork consists of side plates and connecting plates. The side plates are symmetrically arranged, and the connecting plates are connected between the side plates to form an integral structure to ensure the stability of the stair formwork, which is especially important in the construction process.

[0003] Currently, to further ensure the stability of stair formwork, reinforcement devices are typically applied to it. Existing reinforcement devices are diverse. For example, Chinese utility model patent CN223034385U discloses a prefabricated wooden stair formwork structure. This structure includes side panels and mounting components. Slots are provided on the side panels, and the mounting components are inserted into these slots. The top of the mounting components is lower than the horizontal plane of the slots. The structure also includes a limiting component, located on one side of the slots. A limiting post is provided on the limiting component to engage with the mounting components, thus connecting them as a whole and preventing separation. The bottom of the limiting post is through-hole with a deformation groove. A spring is also provided in the through-hole area. The spring's rebound forces the through-hole area of ​​the limiting post to deform, thereby abutting against the inner wall of the hole on the limiting plate to ensure stability.

[0004] Although the above structure uses springs installed in the through-area of ​​the limiting columns to ensure stability through the rebound force of the springs, the limiting columns are relatively small, the through-area is limited, and the internal springs are also small. Therefore, the stability of the stair formwork is not ideal through the rebound force of the springs, making it difficult to guarantee a highly efficient and stable effect.

[0005] Therefore, this application provides a novel adjustable reinforcement device for stair formwork to ensure the stability of stair formwork. Utility Model Content

[0006] The purpose of this section is to outline some aspects of the embodiments of this utility model and to briefly introduce some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of this section, the abstract, and the title of this invention, and such simplifications or omissions shall not be used to limit the scope of this utility model.

[0007] To address the technical problem that the stability of stair formwork in the prior art is not ideal, this utility model adopts the following technical solution.

[0008] A novel adjustable reinforcement device for stair formwork is disclosed, used to limit the movement of stair formwork. The stair formwork includes side plates and connecting plates. The side plates are arranged opposite each other, and the two ends of the connecting plates are connected to the side plates. The side plates have openings and slots, and the two ends of the connecting plates are inserted into the openings and slots to connect the opposite side plates. The side plates also have arc-shaped slots that communicate with the openings and slots. Limiting components are installed in the arc-shaped slots. When the end of the connecting plate is inserted into the opening, the limiting components move along the length of the arc-shaped slots and press against the connecting plates to ensure the stability between the connecting plates and the side plates.

[0009] Preferably, in the above-mentioned adjustable reinforcement device, the limiting component includes a sliding block, which is slidably connected to the arc-shaped groove. A plug-in post is connected to the side wall of the sliding block near the opening groove, and a plug hole is provided on the side wall of the end of the connecting plate. When the connecting plate is inserted into the opening groove, the sliding block slides along the length direction of the arc-shaped groove so that the plug-in post is inserted into the plug hole at the end of the connecting plate.

[0010] Preferably, in the above-mentioned adjustable reinforcement device, the limiting component further includes a connecting arm, one end of which is rotatably connected to the side wall of the side plate, and the other end is connected to the sliding block. Rotation of the connecting arm can drive the sliding block to move along the length direction of the arc groove.

[0011] Preferably, in the above-mentioned adjustable reinforcement device, the limiting component further includes a limiting part, which is used to limit the sliding block.

[0012] Preferably, in the above-mentioned adjustable reinforcement device, the limiting component includes a bolt and a limiting hole opened on the side wall of the side plate, and the connecting arm is provided with a waist hole. After the plug on the sliding block is inserted into the plug hole at the end of the connecting plate, the bolt is connected to the limiting hole on the side plate through the waist hole of the connecting arm to limit the sliding block.

[0013] Preferably, the adjustable reinforcement device described above further includes a stabilizing component, which is installed on the top of the side plate to seal the opening slot on the side plate.

[0014] Preferably, in the above-mentioned adjustable reinforcement device, the stabilizing component includes a stabilizing plate, and a plurality of snap-fit ​​blocks are installed on the lower surface of the stabilizing plate. The number of snap-fit ​​blocks is consistent with the number of slots on the side plate, and the snap-fit ​​blocks are embedded into the slots on the side plate by means of interference fit.

[0015] Preferably, in the above-mentioned adjustable reinforcement device, the bottom of the snap-fit ​​block is also connected to a covering piece. The covering piece is made of a flexible material. When the snap-fit ​​block is fitted into the opening groove, the covering piece covers the periphery of the snap-fit ​​block to ensure the stability between the snap-fit ​​block and the side plate.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] The stair formwork of this utility model includes a side plate and a connecting plate. The side plate is provided with an opening groove, and the end of the connecting plate is inserted into the opening groove. An arc-shaped groove is connected to the opening groove, and a sliding block is installed in the arc-shaped groove. A plug-in post is connected to the sliding block. A plug hole is opened at the end of the connecting plate. The stability between the connecting plate and the side plate is ensured by inserting the plug-in post of the sliding block into the plug hole at the end of the connecting plate. In addition, a connecting arm is connected to the sliding block, and a waist hole is provided on the connecting arm. A limit hole is opened on the side plate. The sliding block can be limited by the cooperation of the limit hole and the bolt, thereby ensuring the stability of the limit hole.

[0018] The stair formwork reinforcement device of this utility model also includes a stabilizing component, which includes a stabilizing plate and a snap-fit ​​block. The snap-fit ​​block snaps into the opening groove of the side plate to limit the connection plate. The snap-fit ​​block is also provided with a covering piece. When the snap-fit ​​block is snapped into the opening groove, the covering piece covers the snap-fit ​​block to ensure the stability between the stabilizing plate and the side plate, thereby further improving the stability performance of the stair formwork. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the adjustable reinforcement device for stair formwork in this utility model;

[0020] Figure 2 for Figure 1 Side view;

[0021] Figure 3 This is a schematic diagram showing the disassembled structure of the adjustable reinforcement device and stabilizing components of the stair formwork in this utility model;

[0022] Figure 4 This is a schematic diagram of the adjustable reinforcement device for stair formwork in this utility model after the stabilizing components have been disassembled.

[0023] Figure 5 for Figure 2 Enlarged view of the structure at point A in the middle;

[0024] Figure 6 for Figure 2 Diagram showing the effect of using the middle limit component;

[0025] Figure 7 This is a schematic diagram of the stabilizing component in this utility model;

[0026] Figure 8 This is a schematic diagram of another embodiment of the stabilizing component in this utility model.

[0027] The correspondence between the reference numerals and component names in the attached drawings is as follows.

[0028] 100. Side panel; 200. Limiting assembly; 300. Stabilizing assembly;

[0029] 101. Connecting plate; 102. Opening groove; 103. Arc groove; 104. Limiting hole;

[0030] 201. Connecting arm; 202. Sliding block; 203. Insertion post;

[0031] 301. Stabilizing plate; 302. Connecting block; 303. Covering sheet. Detailed Implementation

[0032] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0033] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0034] like Figures 1-4 As shown, this is a structural schematic diagram of the novel adjustable reinforcement device for stair formwork in this embodiment. This reinforcement device is used to reinforce the stair formwork. The stair formwork in this embodiment includes opposing side plates 100 and connecting plates 101 connecting the side plates 100. Figure 4 As shown, in this embodiment, an opening groove 102 is provided on the side plate, and the two ends of the connecting plate 101 are inserted into the opening groove 102 to form a stair template.

[0035] In this embodiment, in order to ensure the stability between the connecting plate 101 and the side plate 100, the reinforcement device also includes a limiting component 200, which is used to limit the connecting plate 101, thereby achieving a stable effect between the connecting plate 101 and the side plate 100.

[0036] like Figure 1 as well as Figure 5 As shown, in this embodiment, an arc-shaped groove 103 is provided on the side wall of the side plate 100. One end of the arc-shaped groove 103 is connected to the opening groove 102. The limiting component 200 is installed in the arc-shaped groove 103. When the end of the connecting plate 101 is inserted into the opening groove 102, the limiting component 200 moves along the direction of the arc-shaped groove 103 and presses against the side wall of the connecting plate 101, thereby ensuring the stable effect between the connecting plate 101 and the side plate 100.

[0037] Furthermore, in this embodiment, the limiting component 200 includes a sliding block 202, which is slidably installed in the arc-shaped groove 103. A plug-in post 203 is installed on the side wall of the sliding block 202, and a plug hole is provided on the end side wall of the connecting plate 101. When the sliding block 202 slides along the arc-shaped groove 103 and presses against the side wall of the connecting plate 101, the plug-in post 203 on the sliding block 202 is inserted into the plug hole at the end of the connecting plate 101, with the following effect: Figure 6 As shown, this achieves the limitation of the connecting plate 101, thus preventing the connecting plate 101 from separating from the side plate 100.

[0038] In addition, such as Figure 5 as well as Figure 6 As shown, in order to ensure that the sliding block 202 can slide along the length direction of the arc groove 103, in this embodiment, the end of the sliding block 202 is connected to a connecting arm 201, and the other end of the connecting arm 201 is rotatably mounted on the side plate 100. When the connecting plate 101 is inserted into the opening groove 102, the connecting arm 201 is driven to move the sliding block 202 along the length direction of the arc groove 103 until the insertion post 203 on the sliding block 202 is inserted into the insertion hole at the end of the connecting plate 101, thereby ensuring the stability of the connecting plate 101 in the opening groove 102.

[0039] In addition, such as Figure 5 as well as Figure 6 As shown, in this embodiment, the side plate 100 is also provided with a plurality of limiting holes 104, and the connecting arm 201 is provided with a waist hole. When the plug pin 203 is inserted into the plug hole at the end of the connecting plate 101, the bolt passes through the waist hole thread on the connecting arm 201 and is threaded into the limiting hole 104, which can limit the limiting component 200 and prevent the limiting component 200 from moving, thereby further ensuring the stability of the connecting plate 101 in the opening groove 102, ensuring the stability between the connecting plate 101 and the side plate 100, thereby achieving the effect of adjusting the stability of the stair formwork.

[0040] like Figure 3 as well as Figure 7 As shown, the reinforcement device in this embodiment also includes a stabilizing component 300. The stabilizing component 300 is assembled on the top of the side plate 100 to seal the opening slot 102, further preventing the connecting plate 101 from detaching from the side plate 100.

[0041] like Figure 7As shown, the stabilizing component 300 in this embodiment includes a stabilizing plate 301. Multiple snap-fit ​​blocks 302 are installed on the lower surface of the stabilizing plate 301. The number of snap-fit ​​blocks 302 is consistent with the number of opening slots 102 on the side plate 100. The snap-fit ​​blocks 302 are embedded into the opening slots 102 of the side plate 100 by means of interference fit, thereby further realizing the limiting of the connecting plate 101, avoiding the situation where the connecting plate 101 detaches from the opening slots 102, and further ensuring the stability of the stair formwork.

[0042] like Figure 8 As shown, in this embodiment, the bottom of the snap-fit ​​block 302 is also connected to a covering piece 303. The covering piece 303 is made of flexible material. When the snap-fit ​​block 302 is fitted into the opening slot 102, the covering piece 303 covers the periphery of the snap-fit ​​block 302, thereby further ensuring the stability between the snap-fit ​​block 302 and the side plate 100, improving the stability effect between the stabilizing component 300 and the side plate 100, and ensuring the stability of the stair formwork.

[0043] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A novel adjustable reinforcing device for stair formwork, the stair formwork comprising side plates (100) arranged oppositely and a connecting plate (101) connected to the side plates (100) at both ends, and an open slot (102) is formed on the side plate (100), and both ends of the connecting plate (101) are inserted into the open slot (102) to connect the oppositely arranged side plates (100), characterized in that, The side plate (100) is also provided with an arc groove (103), which is connected to the opening groove (102). A limiting component (200) is installed in the arc groove (103). When the end of the connecting plate (101) is inserted into the opening groove (102), the limiting component (200) moves along the length direction of the arc groove (103) and presses against the connecting plate (101) to ensure the stability between the connecting plate (101) and the side plate (100).

2. The novel adjustable reinforcement device for stair formwork according to claim 1, characterized in that, The limiting component (200) includes a sliding block (202), which is slidably connected to the arc groove (103). A plug-in post (203) is connected to the side wall of the sliding block (202) near the opening groove (102). An insertion hole is provided on the end side wall of the connecting plate (101). After the connecting plate (101) is inserted into the opening groove (102), the sliding block (202) slides along the length direction of the arc groove (103) so that the plug-in post (203) is inserted into the insertion hole at the end of the connecting plate (101).

3. The novel adjustable reinforcement device for stair formwork according to claim 2, characterized in that, The limiting component (200) further includes a connecting arm (201), one end of which is rotatably connected to the side wall of the side plate (100), and the other end is connected to the sliding block (202). The rotation of the connecting arm (201) can drive the sliding block (202) to move along the length direction of the arc groove (103).

4. The novel adjustable reinforcement device for stair formwork according to claim 3, characterized in that, The limiting component (200) further includes a limiting part for limiting the sliding block (202).

5. The novel adjustable reinforcement device for stair formwork according to claim 4, characterized in that, The limiting component includes a bolt and a limiting hole (104) opened on the side wall of the side plate (100). The connecting arm (201) is provided with a waist hole. When the plug post (203) on the sliding block (202) is inserted into the plug hole at the end of the connecting plate (101), the bolt is connected to the limiting hole (104) on the side plate (100) through the waist hole of the connecting arm (201) to limit the sliding block (202).

6. The novel adjustable reinforcement device for stair formwork according to any one of claims 1-5, characterized in that, It also includes a stabilizing component (300), which is mounted on top of the side plate (100) to seal the opening slot (102) on the side plate (100).

7. The novel adjustable reinforcement device for stair formwork according to claim 6, characterized in that, The stabilizing component (300) includes a stabilizing plate (301). Multiple snap-fit ​​blocks (302) are installed on the lower surface of the stabilizing plate (301). The number of snap-fit ​​blocks (302) is consistent with the number of opening slots (102) on the side plate (100). The snap-fit ​​blocks (302) are embedded into the opening slots (102) of the side plate (100) by means of interference fit.

8. The novel adjustable reinforcement device for stair formwork according to claim 7, characterized in that, The bottom of the snap-fit ​​block (302) is also connected to a covering piece (303). The covering piece (303) is made of flexible material. When the snap-fit ​​block (302) is fitted into the opening slot (102), the covering piece (303) covers the periphery of the snap-fit ​​block (302) to ensure the stability between the snap-fit ​​block (302) and the side plate (100).

Citation Information

Patent Citations

  • Assembly type wooden stair splicing formwork structure

    CN223034385U