Reusable stair external corner finished product protection pad
By designing reusable protective pads for stair corners, using transparent TPU soft rubber and a combined structure, the problems of resource waste and insufficient strength in existing technologies are solved, achieving efficient protection and environmentally friendly reuse.
Patent Information
- Application Number
- CN202423053737.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-11
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-12-11
AI Technical Summary
Existing protective measures for finished stair corners have the problems of being used only once, leading to resource waste and poor environmental performance. In addition, traditional materials are not strong enough and are easily damaged and fall off, failing to effectively prevent wear and scratches.
A reusable protective pad for stair corners has been designed. It uses TPU transparent soft rubber as the surface layer and combines corner protection modules, fixing blocks, fastening mechanisms and metal hooks to form a sturdy structure that ensures stability and durability. It can be disassembled and reused by threaded connection and buckle fixation.
It improves the protection quality of the external corners of the staircase, reduces waste generation, lowers the company's operating costs, and enhances economic benefits, while also taking into account the goal of eco-friendly and sustainable development.
Smart Images

Figure CN223497461U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building decoration protection technology, and in particular to a reusable finished protective pad for stair corners. Background Technology
[0002] The main protective measures for external corners of stairs include two common forms: wooden corner guards and plastic foam wrapping. While wooden corner guards provide a certain degree of rigidity and support, they are easily damaged and broken during transportation and installation, and cannot be reused multiple times. Plastic foam wrapping is relatively soft and easy to mold to meet different angle requirements, but it also suffers from poor durability. Once damaged, it becomes ineffective and cannot be recycled, increasing the risk of environmental pollution. Both materials have the disadvantage of unreliable fixation, and they are prone to falling off when subjected to minor impacts, failing to effectively prevent wear and scratches.
[0003] During construction, the corners of staircases are typically protected by temporary covering with wooden strips, foam plastic, or cardboard. While these traditional methods can achieve initial protection, their single-use nature leads to significant resource waste and poor environmental performance. Furthermore, the materials themselves are not very strong and are easily damaged, resulting in ineffective protection.
[0004] External corners are easily damaged by impacts and scratches during construction or transportation. Protective pads can effectively prevent these damages. In frequent personnel movement and goods handling, external corners are easily worn. Protective pads can greatly extend their service life. The existing protection of external corners of stairs usually uses wooden strips, foam plastic or cardboard for temporary covering. Although these traditional methods can achieve the purpose of initial protection, due to their single-use nature, they cause a lot of waste of resources and have poor environmental performance. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a reusable finished protective pad for stair corners, aiming to improve the problem of single-use characteristics in the prior art, which causes a lot of waste of resources.
[0006] To achieve the above objectives, this utility model adopts the following technical solution: a reusable protective pad for stair corners, comprising a ladder frame, a long strip plate A at the top of the ladder frame, a long strip plate B fixedly connected to the front side of the long strip plate A, fixing blocks fixedly connected to the outer walls of both the long strip plate B and the long strip plate A, fixing parts fixedly connected to the outer walls of the fixing blocks, rotating parts rotatably connected to the top of the fixing parts, and a latch rotatably connected to the inner wall of the rotating parts, a corner protection module provided on the outer wall of the long strip plate B, fixing buckles fixedly connected to the left and right sides of the corner protection module, one end of the fixing buckle being snapped into one end of the latch, and fastening mechanisms provided on the left and right sides of the long strip plate B, the fastening mechanisms being used to fix the protective pad.
[0007] Through the above technical solution: the long strip plate A and the long strip plate B are closely connected to form a sturdy structure, ensuring the overall stability and durability of the protective pad. The fixing block enhances the strength of the structure and provides a reliable installation point for subsequent fixing parts. The corner protection module protects the edge of the ladder frame from impact and scratches. The fixing buckles on the left and right sides of the corner protection module are connected to the buckles of the latches, further enhancing the fixing effect of the protective pad. The fastening mechanism is used to fix the protective pad and prevent it from shifting during use. One side of the fixing buckle is threaded to the corner protection module with a threaded nail, which is firm and easy to disassemble.
[0008] As a further description of the above technical solution:
[0009] The fastening mechanism includes a connecting block, the left side of which is fixedly connected to the right side of the elongated plate B. A fixing post is fixedly connected to the right side of the connecting block, and a slip ring is fixedly connected to the right side of the fixing post. A spring is fixedly connected to the right end of the slip ring, and a limit cylinder is fixedly connected to the other end of the spring. A slide rail is provided inside the limit cylinder, and the inner wall of the slide rail is slidably connected to the outer wall of the slip ring. A metal hook is fixedly connected to the right side of the limit cylinder.
[0010] Through the above technical solution: a fixed column is provided on the right side of the connecting block. The fixed column serves as the support point of the structure, ensuring the stability of the entire mechanism. The slip ring utilizes its smooth outer wall to achieve a sliding connection with the slide rail inside the limiting cylinder. The inner wall of the slide rail and the outer wall of the slip ring form a precise sliding fit. The presence of the spring provides the necessary elasticity for the entire mechanism, ensuring that it can quickly return to its original position when subjected to external force. The metal hook ensures that it can firmly grasp the edge of the ladder frame in practical applications, thereby achieving its fastening function.
[0011] As a further description of the above technical solution:
[0012] One side of the fixing buckle is threaded with a threaded pin, and the fixing buckle is threadedly fixed to the corner protector module by the threaded pin.
[0013] The above technical solution allows for a more secure connection between the fixing buckle and the corner protector module. The fixing buckle can also be removed from the corner protector module using the threaded screw, facilitating maintenance.
[0014] As a further description of the above technical solution:
[0015] The top of the corner protector module is rotatably connected to a top protective shell, and the front of the corner protector module is rotatably connected to a side protective shell.
[0016] The above technical solution involves the top protective shell and the side protective shell working together to protect the safety of the internal buckles and prevent them from being accidentally kicked and damaged.
[0017] As a further description of the above technical solution:
[0018] The top of the corner protector module is fixedly connected with an anti-slip ridge, and the front side of the elongated plate B is fixedly connected with an anti-kick pad.
[0019] Through the above technical solutions: the anti-slip ridges play a role in preventing slipping and ensuring safety when using the ladder frame, and the anti-kick pads can effectively protect the long strip board B from damage.
[0020] As a further description of the above technical solution:
[0021] Side protection plates are fixedly connected to both the left and right sides of the elongated plate B, and the side protection plates are located in front of the fastening mechanism.
[0022] The above technical solution involves a side protection plate located on the front side of the fastening mechanism, which can better protect the fastening mechanism.
[0023] As a further description of the above technical solution:
[0024] The bottom of the long strip plate A is fixedly connected with a tread reinforcement strip, and the rear side of the long strip plate B is fixedly connected with a kicking reinforcement strip.
[0025] Through the above technical solution, the combined effect of the tread and kick ribs enhances overall stability and can also increase friction to prevent displacement.
[0026] As a further description of the above technical solution:
[0027] The top protective shell has a handle opening two on its front side, and the side protective shell has a handle opening one on its top.
[0028] Through the above technical solution, the function of handle opening one and handle opening two is to facilitate opening the protective shell and to facilitate operation of its internal structure.
[0029] This utility model has the following beneficial effects:
[0030] 1. In this utility model, rotating the rotating parts raises them within the corner protection module, thereby disengaging the buckle from the fixing buckle and completing the disassembly. The corner protection module is a flexible material covering, using TPU transparent soft rubber as the surface layer, which improves the protection quality of the external corner of the ladder frame, effectively avoids damage caused by impact, maximizes the reuse rate of materials, and significantly reduces the amount of waste generated, thus helping to alleviate environmental pressure.
[0031] 2. In this utility model, pulling the metal grab hook causes the spring to stretch in the limiting cylinder. After the metal grab hook bites the edge of the step, the spring pulls back to make it firmly on the kick surface. This simplifies daily management and maintenance procedures, reduces enterprise operating costs and improves economic efficiency. It has excellent physical and mechanical performance and significant cost-saving advantages, while also taking into account the goals of eco-friendly and sustainable development. Attached Figure Description
[0032] Figure 1 A perspective view of the front side of the ladder frame of a reusable protective pad for the external corner of a staircase, as proposed in this utility model.
[0033] Figure 2 This is a perspective view of the left side of the ladder frame of a reusable protective pad for the external corner of a staircase, as proposed in this utility model.
[0034] Figure 3 This is a partial structural diagram of a corner protector module for a reusable stair corner protective pad proposed in this utility model.
[0035] Figure 4 A partial structural diagram of the long strip plate A of the reusable stair corner protective pad proposed in this utility model;
[0036] Figure 5 This is a partial structural diagram of the fastening mechanism for a reusable protective pad for the external corner of a staircase, as proposed in this utility model.
[0037] Legend:
[0038] 1. Ladder frame; 2. Fastening mechanism; 201. Connecting block; 202. Fixing column; 203. Slip ring; 204. Spring; 205. Slide rail; 206. Limiting cylinder; 207. Metal hook; 3. Long strip plate A; 4. Long strip plate B; 5. Fixing block; 6. Corner protection module; 7. Rotating parts; 8. Lock; 9. Fixing buckle; 10. Threaded nail; 11. Anti-slip ridge; 12. Top protective shell; 13. Side protective plate; 14. Side protective shell; 15. Anti-kick pad; 16. Tread rib strip; 17. Kick rib strip; 18. Handle opening one; 19. Handle opening two; 20. Fixing parts. Detailed Implementation
[0039] 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.
[0040] Please see the appendix Figure 1 Appendix Figure 2 and attached Figure 3 This utility model provides an embodiment of a reusable protective pad for the external corner of a staircase, comprising a ladder frame 1, a long strip plate A3 at the top of the ladder frame 1, a long strip plate B4 fixedly connected to the front side of the long strip plate A3, fixing blocks 5 fixedly connected to the outer walls of both the long strip plate B4 and the long strip plate A3, fixing parts 20 fixedly connected to the outer walls of the fixing blocks 5, the fixing blocks 5 enhancing the structural strength and providing a reliable installation point for the subsequent fixing parts 20, a rotating part 7 rotatably connected to the top of the fixing part 20, a latch 8 rotatably connected to the inner wall of the rotating part 7, and a latch 8 on the inner side of the rotating part 7. The corner protector is rotatably connected to the latch 8, allowing the user to easily fix the protective pad to the external corner of the ladder frame 1. The outer wall of the long strip plate B4 is provided with a corner protector module 6. The left and right sides of the corner protector module 6 are fixedly connected with a fixing buckle 9. One end of the fixing buckle 9 is snapped to one end of the latch 8. The left and right sides of the long strip plate B4 are provided with a fastening mechanism 2, which is used to fix the protective pad. One side of the fixing buckle 9 is threaded with a threaded nail 10. The fixing buckle 9 is threaded to the corner protector module 6 through the threaded nail 10. The top of the corner protector module 6 is rotatably connected with a top protective shell 12, and the front side of the corner protector module 6 is rotatably connected with a side protective shell 14.
[0041] Specifically, the long strip plate A3 is sturdy enough to withstand wear and tear during daily use. The long strip plate A3 is tightly connected to the long strip plate B4 to form a robust structure, ensuring the overall stability and durability of the protective pad. The fixing block 5 enhances the strength of the structure and provides a reliable installation point for the subsequent fixing parts 20. The upper end of the fixing part 20 is rotatably connected to the rotating part 7, and the inner side of the rotating part 7 is rotatably connected to the latch 8, allowing the user to easily fix the protective pad to the external corner of the ladder frame 1, ensuring that it will not accidentally fall off during construction or transportation. The corner protection module 6 protects the edge of the ladder frame 1 from impact and scratches. The fixing buckles 9 on the left and right sides of the corner protection module 6 are connected to the latches 8, further enhancing the fixing effect of the protective pad. The fastening mechanism 2 is used to fix the protective pad and prevent it from shifting during use. One side of the fixing buckle 9 is threaded to the corner protection module 6 by a threaded nail 10, which is firm and easy to disassemble.
[0042] Please see the appendix Figure 4 and attached Figure 5 The fastening mechanism 2 includes a connecting block 201. The left side of the connecting block 201 is fixedly connected to the right side of the elongated plate B4. A fixing column 202 is fixedly connected to the right side of the connecting block 201. The fixing column 202 serves as a support point for the structure, ensuring the stability of the entire mechanism. A slip ring 203 is fixedly connected to the right side of the fixing column 202. A spring 204 is fixedly connected to the right end of the slip ring 203. The presence of the spring 204 provides the necessary elastic force for the entire mechanism. A limit cylinder 206 is fixedly connected to the other end of the spring 204. A slide rail 205 is provided inside the limit cylinder 206. The inner wall of the slide rail 205 is slidably connected to the outer wall of the slip ring 203. A metal hook 207 is fixedly connected to the right side of the limit cylinder 206. The metal hook 207 can firmly grasp the edge of the ladder frame 1, thereby realizing its fastening function.
[0043] Specifically, a fixed post 202 is provided on the right side of the connecting block 201. The fixed post 202 serves as a support point for the structure, ensuring the stability of the entire mechanism. The slip ring 203 utilizes its smooth outer wall to achieve a sliding connection with the slide rail 205 inside the limiting cylinder 206. The inner wall of the slide rail 205 and the outer wall of the slip ring 203 form a precise sliding fit, improving the sensitivity of operation. The presence of the spring 204 provides the necessary elasticity for the entire mechanism, ensuring that it can quickly return to its original position when subjected to external force. The metal hook 207 takes into account the gripping force and angle to ensure that it can firmly grip the edge of the ladder frame 1 in actual applications, thereby achieving its fastening function.
[0044] Please see the appendix Figure 1 and attached Figure 3 The corner protector module 6 is fixedly connected to the top with an anti-slip ridge 11, which ensures a stable stepping feel during use. The front side of the long strip plate B4 is fixedly connected with an anti-kick pad 15. The left and right sides of the long strip plate B4 are fixedly connected with side protection plates 13. The side protection plates 13 are located in front of the fastening mechanism 2. The side protection plates 13 prevent the fastening mechanism 2 from being accidentally kicked and damaged. The bottom of the long strip plate A3 is fixedly connected with a tread rib 16. The rear side of the long strip plate B4 is fixedly connected with a kick rib 17. The front side of the top protective shell 12 has a handle opening 2 19. The top of the side protective shell 14 has a handle opening 18. The handle opening 2 19 makes it easy to open the top protective shell 12 to operate the internal structure.
[0045] Specifically, the top of the corner protector module 6 is fixedly connected to the anti-slip rib 11, ensuring a stable stepping feel during use and effectively preventing accidental slippage. The anti-kick pad 15 protects the board from daily wear and impact damage. The side protection plate 13 enhances the stability of the structure and prevents the fastening mechanism 2 from being damaged by accidental kicks. The tread ribs 16 increase the friction of the tread surface, improve walking safety, and also add structural strength to the board.
[0046] Working principle: When it is necessary to remove the corner protection module 6, rotate the rotating part 7 to lift it in the corner protection module 6, thereby causing the latch 8 to disengage from the fixing buckle 9, completing the removal. The corner protection module 6 is a flexible material covering, using TPU transparent soft rubber as the surface layer and EVA foam filling inside to increase the cushioning and shock absorption effect, improving the protection quality of the external corner of the stairs, effectively avoiding damage caused by impact, maximizing the reuse rate of materials, greatly reducing the amount of waste generated, and helping to alleviate environmental pressure.
[0047] The length of the long strip plate A3 was determined based on the actual on-site measurement results. Then, it was tightly attached to the edge of the stair corner. Next, the spacing of the fastening mechanism 2 was adjusted until it tightly gripped the edge of the step. The metal hook 207 was pulled to stretch the spring 204 in the limiting cylinder 206. After the metal hook 207 gripped the edge of the step, the spring 204 was pulled back to make it firmly on the riser surface. This simplified the daily management and maintenance procedures, reduced the company's operating costs and improved economic efficiency. It has excellent physical and mechanical performance and significant cost savings, while also taking into account the goals of eco-friendly and sustainable development.
[0048] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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 reusable protective pad for the external corner of a staircase, comprising a ladder frame (1), characterized in that: The top of the ladder frame (1) is provided with a long strip plate A (3), and the front side of the long strip plate A (3) is fixedly connected to a long strip plate B (4). The outer walls of the long strip plate B (4) and the long strip plate A (3) are both fixedly connected to a fixing block (5). The outer wall of the fixing block (5) is fixedly connected to a fixing part (20). The top of the fixing part (20) is rotatably connected to a rotating part (7). The inner wall of the rotating part (7) is rotatably connected to a latch (8). The outer wall of the long strip plate B (4) is provided with a corner protection module (6). The left and right sides of the corner protection module (6) are fixedly connected to fixing buckles (9). One end of the fixing buckle (9) is snapped to a section of the latch (8). The left and right sides of the long strip plate B (4) are provided with a fastening mechanism (2). The fastening mechanism (2) is used to fix the protective pad.
2. The reusable protective pad for stair corners according to claim 1, characterized in that: The fastening mechanism (2) includes a connecting block (201). The left side of the connecting block (201) is fixedly connected to the right side of the elongated plate B (4). A fixing post (202) is fixedly connected to the right side of the connecting block (201). A slip ring (203) is fixedly connected to the right side of the fixing post (202). A spring (204) is fixedly connected to the right end of the slip ring (203). A limit cylinder (206) is fixedly connected to the other end of the spring (204). A slide rail (205) is provided inside the limit cylinder (206). The inner wall of the slide rail (205) is slidably connected to the outer wall of the slip ring (203). A metal hook (207) is fixedly connected to the right side of the limit cylinder (206).
3. The reusable protective pad for stair corners according to claim 1, characterized in that: The fixing buckle (9) has a threaded connection to a threaded nail (10) on one side, and the fixing buckle (9) is threadedly fixed to the corner protection module (6) by the threaded nail (10).
4. The reusable protective pad for external corners of stairs according to claim 1, characterized in that: The top of the corner protector module (6) is rotatably connected to a top protective shell (12), and the front side of the corner protector module (6) is rotatably connected to a side protective shell (14).
5. A reusable protective pad for stair corners according to claim 1, characterized in that: The corner protector module (6) is fixedly connected to the top of an anti-slip rib (11), and the long strip plate B (4) is fixedly connected to the front of an anti-kick pad (15).
6. The reusable protective pad for external corners of stairs according to claim 1, characterized in that: The long strip plate B (4) is fixedly connected to the left and right sides with side protection plates (13), and the side protection plates (13) are located in front of the fastening mechanism (2).
7. A reusable protective pad for stair corners according to claim 1, characterized in that: The bottom of the long strip plate A (3) is fixedly connected with a tread rib (16), and the rear side of the long strip plate B (4) is fixedly connected with a kick rib (17).
8. A reusable protective pad for stair corners according to claim 4, characterized in that: The top protective shell (12) has a handle opening two (19) on its front side, and the side protective shell (14) has a handle opening one (18) on its top.