Turnover type prefabricated stair finished product protection device

By designing a reusable protective device for precast stairs, which combines anti-slip mats, pressure plates, and spring clips, the problem of bumps and knocks during the transportation and use of precast concrete stairs is solved, achieving protection and rapid installation, and improving construction efficiency and safety.

CN223634374UActive Publication Date: 2025-12-05CHINA HUASHI ENTERPRISES CO LTD (SICHUAN)
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Patent Information

Application Number
CN202423240385.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-27
Publication Date
2025-12-05
Estimated Expiration
2034-12-27

AI Technical Summary

Technical Problem

Precast concrete stairs are prone to bumps, cracks, and damage during transportation and use, affecting both aesthetics and safety, and existing technologies are unable to effectively solve these problems.

Method used

The system employs a reusable prefabricated staircase protection device, which includes the staircase body, splicing components, and fixing components. Through the combination design of anti-slip pads, pressure plates, springs, and locking blocks, the staircase is fixed and spliced, avoiding bumps and damage.

Benefits of technology

It effectively protects the stairs from bumps and knocks, prevents chipping, cracking, and improves construction efficiency, ensuring both safety and aesthetics.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of constructional engineering, and discloses a turnover type prefabricated stair finished product protection device which comprises a stair body, a splicing assembly is installed on the outer side of the stair body, an anti-skid pad is arranged at the top of the stair body, a fixing assembly is installed in the stair body, and the fixing assembly comprises a plurality of pressing plates. The exterior of the pressing plate is slidably connected to the interior of the stair body, a partition plate is fixedly connected to the inner wall of the pressing plate, first springs are fixedly connected to the left side and the right side of the partition plate, clamping blocks are fixedly connected to the outer sides of the first springs, and the splicing assembly comprises tenons and mortises. According to the stair anti-slip mat, the pressing plate is inserted into the stair body, the first spring pushes the clamping block to reset and be clamped in the stair body, the stair body is protected through the anti-slip mat, the phenomena of edge missing, corner falling, cracking and damage caused by collision are avoided, meanwhile, the anti-slip mat can be rapidly fixed to the stair body through the pressing plate, and time and labor are saved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the field of building engineering especially, relate to a kind of recyclable prefabricated stair finished product protection device. BACKGROUND

[0002] Prefabricated stair is a kind of stair structure form that is pre-made in factory, assembled on site, it is made of concrete, reinforced concrete or other composite materials, usually including stair step, stair platform, handrail etc. Assembly, the production process of prefabricated stair is completed in factory, with the characteristics of standardization, modularization, therefore can effectively shorten construction period, reduce the complexity of on-site construction, compared with traditional on-site pouring stair, prefabricated stair is more accurate in quality control, because they are produced in controlled environment, can guarantee higher stability and consistency.

[0003] Prefabricated stair is widely used in residential building, commercial building, industrial plant and various types of building, its advantages include quick installation, lower cost, less impact on environment during construction process, prefabricated stair design can be flexible and diverse, can meet the needs of different building structures, and appearance can be customized texture and color according to customer demand, with the increasing requirements of construction industry on construction period and cost, prefabricated stair, as an efficient, environmentally friendly and economical building component, gradually becomes an indispensable part of modern building.

[0004] With the emergence of a large number of prefabricated assembly type concrete stairs, because of the lack of concrete curing age and the bumping of stairs in the process of transportation and use, prefabricated concrete stairs will cause problems such as missing edge, corner drop, cracking and damage, which not only affects the appearance but also affects the safety, therefore a recyclable prefabricated stair finished product protection device is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0005] In order to make up for the above shortcomings, the utility model provides a recyclable prefabricated stair finished product protection device, which aims to improve the problem that prefabricated concrete stairs will cause problems such as missing edge, corner drop, cracking and damage, which not only affects the appearance but also affects the safety because of the lack of concrete curing age and the bumping of stairs in the process of transportation and use.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme: a recyclable prefabricated stair finished product protection device, including stair body, splicing assembly is installed outside the stair body, anti-skid pad is arranged at the top of the stair body, fixed assembly is installed inside the stair body;

[0007] The fixed assembly includes a plurality of pressing plates, the pressing plates are slidably connected to the inside of the stair body, the inner wall of the pressing plate is fixedly connected with a partition plate, the left and right sides of the partition plate are fixedly connected with springs one, the outer side of the spring one is fixedly connected with a clamping block.

[0008] As a further description of the above technical solutions:

[0009] The tenon is fixedly connected to the outside of the stair body, the mortise is fixedly connected to the outside of the stair body, the steel bar is slidably connected to the inside of the mortise, the spring two is fixedly connected to the inside of the mortise, the sliding plate one is fixedly connected to the top of the spring two, the reset hole is formed in the outside of the sliding plate one, the inserting rod is fixedly connected to the top of the sliding plate one, the spring three is fixedly connected to the inside of the mortise, the sliding plate two is fixedly connected to the outside of the spring three, the baffle is fixedly connected to the outside of the sliding plate two, and the push rod is fixedly connected to the outside of the baffle.

[0010] As a further description of the above technical solutions:

[0011] The pressing plate is slidably connected to the inside of the anti-skid pad, and the clamping block is clamped between the outside of the clamping block and the inside of the stair body.

[0012] As a further description of the above technical solutions:

[0013] The sliding plate one is slidably connected to the inside of the mortise, and the inserting rod is inserted into the steel bar.

[0014] As a further description of the above technical solutions:

[0015] The tenon is slidably connected to the inside of the mortise, and the steel bar is slidably connected to the inside of the tenon.

[0016] As a further description of the above technical solutions:

[0017] The sliding plate two is slidably connected to the inside of the mortise, and the baffle is slidably connected to the inside of the mortise.

[0018] As a further description of the above technical solutions:

[0019] The inserting rod is slidably connected to the inside of the mortise, and the push rod is slidably connected to the inside of the mortise.

[0020] As a further description of the above technical solutions:

[0021] The baffle is abutted between the bottom of the baffle and the top of the inserting rod.

[0022] The utility model has the advantages of the following beneficial effects:

[0023] 1. In this utility model, by inserting the pressure plate into the stair body, the spring pushes the locking block to reset and lock it inside the stair body, thus realizing the protection of the stair body with anti-slip mat, avoiding the phenomenon of chipped edges, cracks and damage caused by bumps. At the same time, the pressure plate can quickly fix the anti-slip mat to the stair body, saving time and effort.

[0024] 2. In this utility model, by sliding the tenon into the mortise and inserting the reinforcing bar, and by pulling the lever to cause the baffle to retract, the sliding plate two compresses the spring three. At the same time, the spring two will immediately push the sliding plate one to cause the insert rod to pop out and insert into the reinforcing bar, thus realizing the rapid splicing of multiple stair bodies, effectively improving work efficiency. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of a reusable prefabricated staircase protective device proposed in this utility model.

[0026] Figure 2 This is a schematic diagram of the anti-slip mat of a reusable prefabricated staircase protective device proposed in this utility model;

[0027] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0028] Figure 4 This is a schematic diagram of the structure of the locking block of a reusable prefabricated staircase protective device proposed in this utility model;

[0029] Figure 5 This is a schematic diagram of the insert rod of a reusable prefabricated staircase protective device proposed in this utility model.

[0030] Legend:

[0031] 1. Staircase body; 2. Anti-slip mat; 3. Pressure plate; 4. Partition; 5. Spring 1; 6. Locking block; 7. Tenon; 8. Mortise; 9. Reinforcing bar; 10. Spring 2; 11. Slide plate 1; 12. Insert rod; 13. Spring 3; 14. Slide plate 2; 15. Baffle; 16. Toggle rod; 17. Reset hole. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Reference Figure 1 -Figure 4 The utility model provides a kind of embodiment of the utility model provides a kind of turnover prefabricated stair finished product protection device, including stair body 1, stair body 1 is the stair of prefabricated concrete, by transport to site direct installation, stair body 1 outside is equipped with splicing component, stair body 1 top is equipped with non-slip mat 2, non-slip mat 2 is made of plastic with cowhide, for anti-skid and protect stair body 1 from being damaged, fixed component is installed in stair body 1 inside;

[0034] Fixed component includes multiple pressing plate 3, pressing plate 3 is slidably connected in stair body 1 inside outside, the inner wall of pressing plate 3 is fixedly connected with baffle 4, baffle 4 left and right sides are fixedly connected with spring one 5, spring one 5 outside is fixedly connected with clamping block 6, pressing plate 3 is used to connect and protect internal part, baffle 4 is to connect and support spring one 5, spring one 5 is used to drive clamping block 6 reset, realize clamping fixed, clamping block 6 is to fix pressing plate 3 in stair body 1 inside, pressing plate 3 is slidably connected in non-slip mat 2 inside outside, realize non-slip mat 2 is fixed on stair body 1, clamping block 6 outside and stair body 1 inside between clamping, realize fixed.

[0035] Refer to Figure 2 , Figure 3 , Figure 5The splicing assembly comprises a tenon 7 and a mortise 8, the tenon 7 is fixedly connected to the outside of the stair body 1, the mortise 8 is fixedly connected to the outside of the stair body 1, a steel bar 9 is slidably connected to the inside of the mortise 8, a spring 10 is fixedly connected to the inside of the mortise 8, a sliding plate 11 is fixedly connected to the top of the spring 10, a reset hole 17 is formed in the outside of the sliding plate 11, a plug rod 12 is fixedly connected to the top of the sliding plate 11, a spring 13 is fixedly connected to the inside of the mortise 8, a sliding plate 14 is fixedly connected to the outside of the spring 13, a baffle 15 is fixedly connected to the outside of the sliding plate 14, a push rod 16 is fixedly connected to the outside of the baffle 15, the tenon 7 is used for cooperating with the mortise 8 to connect the stair bodies 1, the steel bar 9 is used for fixing the tenon 7 on the mortise 8 to keep the tenon 7 in a fixed state, the spring 10 is used for pushing the sliding plate 11 to move, the sliding plate 11 is used for bearing the pushing force from the spring 10 and moving the sliding plate 11, the reset hole 17 is used for re-storing the plug rod 12 in the mortise 8 through the stick when the plug rod 12 is automatically reset, the plug rod 12 is used for being inserted into the steel bar 9 to fix the steel bar 9, the spring 13 is used for pushing the sliding plate 14 to move, the sliding plate 14 is used for bearing the pushing force from the spring 13 and moving the baffle 15, the baffle 15 is used for blocking the outlet of the plug rod 12 to avoid automatic reset, the push rod 16 is used for facilitating manual movement of the baffle 15, the sliding plate 11 is slidably connected to the inside of the mortise 8 to limit the moving direction of the sliding plate 11, the plug rod 12 is inserted into the steel bar 9 to keep the steel bar 9 stable, the tenon 7 is slidably connected to the inside of the mortise 8 to realize splicing, the steel bar 9 is slidably connected to the inside of the tenon 7 to fix the tenon 7, the sliding plate 14 is slidably connected to the inside of the mortise 8, the baffle 15 is slidably connected to the inside of the mortise 8, the plug rod 12 is slidably connected to the inside of the mortise 8, the push rod 16 is slidably connected to the inside of the mortise 8, the mortise 8 limits the moving directions of the sliding plate 14, the sliding plate 14, the plug rod 12 and the push rod 16 to keep these parts stable, the baffle 15 abuts against the plug rod 12 to avoid automatic reset of the plug rod 12.

[0036] Working principle: using the device is, first fixed anti-skid pad 2 on the stair body 1, through the anti-skid pad 2 is laid flat on the stair body 1, then make the pressing plate 3 align the hole on the stair body 1, and insert, the stair body 1 will squeeze the card block 6, make the card block 6 compression spring 5 into the pressing plate 3 inside, when the pressing plate 3 is completely inserted to the bottom, spring 5 will immediately push the card block 6 pop reset, card in the stair body 1 inside, while the anti-skid pad 2 is pressed on the stair body 1, realize fixed, while in construction, on the operation platform put steel plate, so that in transportation or use, the stair body 1 will not be hurt, effectively protect the stair body 1, when in the construction site installation, first one of the two stair body 1 tenon 7 and mortise 8 align up and down, and slide in, then the reinforcing steel 9 is inserted into the inside between the tenon 7 and mortise 8, then turn the lever 16, drive the baffle 15 into the mortise 8 makes the sliding plate 2 14 compression spring 3 13, while the baffle 15 and the plug rod 12 is separated, the spring 2 10 will immediately push the sliding plate 1 11 drive the plug rod 12 reset inserted into the reinforcing steel 9 inside, make the reinforcing steel 9 keep stable, realize splicing installation.

[0037] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the present application has been described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement, within the spirit and principles of the present application, any modification, equivalent replacement, improvement, etc., should be included in the scope of the present application.

Claims

1. A recyclable protection device for prefabricated stair finished product, comprising a stair body (1), characterized in that: The stair body (1) is provided with a splicing assembly outside, the stair body (1) is provided with a non-slip pad (2) on the top, and the stair body (1) is provided with a fixing assembly inside; The fixing assembly comprises a plurality of pressing plates (3), the pressing plates (3) are slidably connected to the inside of the stair body (1), the inner wall of the pressing plate (3) is fixedly connected with a partition plate (4), the left and right sides of the partition plate (4) are fixedly connected with a spring (5), and the outer side of the spring (5) is fixedly connected with a clamping block (6).

2. A recyclable precast stairway product protection device according to claim 1, wherein: The splicing assembly comprises a tenon (7) and a mortise (8), the inner side of the tenon (7) is fixedly connected to the outside of the stair body (1), the inner side of the mortise (8) is fixedly connected to the outside of the stair body (1), the inside of the mortise (8) is slidably connected with a steel bar (9), the inside of the mortise (8) is fixedly connected with a spring (10), the top of the spring (10) is fixedly connected with a sliding plate (11), the outside of the sliding plate (11) is provided with a reset hole (17), the top of the sliding plate (11) is fixedly connected with a plug rod (12), the inside of the mortise (8) is fixedly connected with a spring (13), the outside of the spring (13) is fixedly connected with a sliding plate (14), the outside of the sliding plate (14) is fixedly connected with a baffle (15), and the outside of the baffle (15) is fixedly connected with a push rod (16).

3. A recyclable precast stair unit protection device according to claim 1, wherein: The pressing plate (3) is slidably connected to the inside of the non-slip pad (2), and the clamping block (6) is clamped between the outside of the pressing plate (3) and the inside of the stair body (1).

4. A recyclable precast stair unit protection device according to claim 2, wherein: The sliding plate (11) is slidably connected to the inside of the mortise (8), and the plug rod (12) is inserted into the inside of the steel bar (9).

5. A recyclable precast stair unit protection device according to claim 2, wherein: The tenon (7) is slidably connected to the inside of the mortise (8), and the steel bar (9) is slidably connected to the inside of the tenon (7).

6. A recyclable precast stair unit protection device as defined in claim 2 wherein: The sliding plate (14) is slidably connected to the inside of the mortise (8), and the baffle (15) is slidably connected to the inside of the mortise (8).

7. A recyclable protection device for finished precast stairway product according to claim 2, characterized in that: The plug rod (12) is slidably connected to the inside of the mortise (8), and the push rod (16) is slidably connected to the inside of the mortise (8).

8. A recyclable precast stair unit protection device according to claim 2, wherein: The baffle (15) is abutted with the top of the plug rod (12).