Sliding door with corner protection structure
By designing a U-shaped protective cover and a corner protection structure with a buffer mechanism on the sliding door, the problems of easy damage to existing sliding door dampers and opening resistance are solved, providing a flexible buffering effect and an easy-to-replace solution, achieving both safety and convenience.
Patent Information
- Application Number
- CN202423115300.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-17
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-12-17
AI Technical Summary
Existing sliding door dampers are prone to damage and expensive to replace. Furthermore, installing a buffer can increase opening resistance, posing a risk of trapping elderly people or children. They also fail to provide a flexible buffering effect when closing.
Design a sliding door with corner protection structure, using a U-shaped protective cover and buffer mechanism, which is rotatably connected to the through pipe via a connecting shaft. Buffer springs and buffer plates provide buffering effect, and friction is reduced by lubricating oil and bearings. The structure is simple and easy to disassemble.
It achieves a buffering effect when the sliding door closes, reducing noise and impact on the door frame, preventing fingers from being pinched, while its simple structure, easy replacement, and strong adaptability avoid door opening resistance and the risk of being trapped.
Smart Images

Figure CN223621463U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a sliding door with a corner protection structure, belonging to the field of building structure technology. Background Technology
[0002] When sliding doors close forcefully, they can bounce back, which can be dangerous for children in homes with young children. Therefore, dampers are installed on sliding doors to cushion the impact and prevent the door from slamming against the frame due to inertia, thus reducing noise and damage to the door and frame. Secondly, dampers slow down the closing speed, reducing the risk of fingers being pinched, which is especially important in homes with young children.
[0003] However, dampers are consumable parts and need to be replaced frequently; once damaged, the replacement cost is high. Secondly, dampers are not suitable for installing in narrow doorways because they create resistance. When children or the elderly try to open the door, they may not have enough strength to pull it open, and once inside, they could be trapped.
[0004] Therefore, a sliding door with a corner protection structure is needed that can provide a buffer when the door is closed, is easy to replace, and does not create resistance to the door. Utility Model Content
[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a sliding door with a corner protection structure, which slows down the closing speed of the door, is easy to replace, has a simple structure, and avoids the resistance generated by the double doors.
[0006] The present invention provides a sliding door with a corner protection structure, comprising an outer frame, two sliding doors slidably connected within the outer frame, the two sliding doors being staggered within the outer frame, and a corner protection mechanism being provided at the top or bottom corner of each sliding door, the corner protection mechanism being hinged to the sliding door frame;
[0007] The corner protection mechanism includes a U-shaped protective cover, a through pipe, and a connecting shaft. The through pipe is installed on the sliding door frame, and the connecting shaft is placed on the inner side wall of the U-shaped protective cover. The connecting shaft is inserted into the through pipe. The U-shaped protective cover is rotatably connected to the through pipe through the connecting shaft. The U-shaped protective cover can be fitted onto the outer periphery of the sliding door frame. A buffer mechanism is provided on the outer side wall of the U-shaped protective cover where it contacts the outer frame.
[0008] When closing the sliding door, the U-shaped protective cover, fitted around the outer circumference of the door frame, prevents the door from closing completely, thus preventing fingers from being pinched. Furthermore, the buffer mechanism provides a cushioning effect when the door closes, reducing noise and impact on the door frame. To fully close the sliding door, rotate the U-shaped protective cover within the connecting pipe around the connecting shaft, turning it to one side of the door frame, allowing the door to close completely.
[0009] The buffer mechanism includes a buffer spring and a buffer plate, with the buffer plate connected to the U-shaped protective cover via the buffer spring. When the sliding door is closed, the buffer plate first contacts the outer frame, compressing the buffer spring to absorb the impact force and reduce noise and impact on the door frame.
[0010] A buffer pad is provided on the side of the buffer plate closest to the outer frame. The buffer pad prevents the buffer plate from making hard contact with the outer frame, reducing direct impact on the outer frame and thus protecting it from damage. Secondly, the buffer pad can prolong the duration of the impact force, which helps to absorb impact energy more effectively.
[0011] The number of buffer springs is two. Two springs can provide greater buffering force, thus more effectively absorbing and dispersing impact energy. The dual-spring design can provide more stable support and reduce instability caused by the failure of a single spring or uneven force.
[0012] The U-shaped protective cover is made of stainless steel. Stainless steel has excellent corrosion resistance and can be used for a long time in harsh environments without damage.
[0013] The contact surfaces of the through pipe and the connecting shaft are coated with lubricating oil. The lubricating oil effectively reduces friction between the through pipe and the connecting shaft, thereby reducing wear and extending the service life of the components.
[0014] A bearing is installed inside the connecting pipe corresponding to the connecting shaft, and the connecting shaft is inserted into the bearing with an interference fit. The bearing design can significantly reduce the friction between the connecting shaft and the connecting pipe, thereby reducing energy loss and wear. The use of the bearing allows the connecting shaft to rotate smoothly inside the connecting pipe, reducing vibration and noise.
[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0016] The U-shaped protective cover is fitted around the outer perimeter of the sliding door frame, preventing the door from closing completely and thus preventing fingers from being pinched. Due to its buffer mechanism, it also provides a cushioning effect when the door closes, reducing noise and impact on the door frame. The U-shaped protective cover is rotatably connected to the through-tube via a connecting shaft. This design allows the cover to be flexibly fitted around the outer perimeter of the sliding door frame or rotated to one side of the frame, providing a cushioning effect without obstructing the door's closing, enhancing its adaptability and flexibility, and facilitating disassembly and installation. Attached Figure Description
[0017] Figure 1 This is a three-dimensional structural schematic diagram of Embodiment 1 of this utility model;
[0018] Figure 2 yes Figure 1 Enlarged structural diagram at point A;
[0019] Figure 3 This is a three-dimensional structural diagram of a corner protection mechanism.
[0020] In the diagram: 1. Outer frame; 2. Sliding door; 3. Corner protection mechanism; 4. Through pipe; 5. Connecting shaft; 6. U-shaped protective cover; 7. Buffer spring; 8. Buffer plate; 9. Buffer pad. Detailed Implementation
[0021] The present invention will be further described below with reference to embodiments:
[0022] Example 1
[0023] like Figures 1-3 As shown, the sliding door with corner protection structure of this utility model includes an outer frame 1, and two sliding doors 2 are slidably connected inside the outer frame 1. The two sliding doors 2 are staggered inside the outer frame 1. A corner protection mechanism 3 is provided at the top or bottom corner of each sliding door 2. The corner protection mechanism 3 is hinged to the frame of the sliding door 2.
[0024] The corner protection mechanism 3 includes a U-shaped protective cover 6, a through pipe 4, and a connecting shaft 5. The through pipe 4 is installed on the frame of the sliding door 2, and the connecting shaft 5 is placed on an inner side wall of the U-shaped protective cover 6. The connecting shaft 5 is inserted into the through pipe 4. The U-shaped protective cover 6 is rotatably connected to the through pipe 4 through the connecting shaft 5. The U-shaped protective cover 6 can be sleeved on the outer periphery of the frame of the sliding door 2. A buffer mechanism is provided on the outer side wall of the U-shaped protective cover 6 that contacts the outer frame 1.
[0025] The buffer mechanism includes a buffer spring 7 and a buffer plate 8, with the buffer plate 8 connected to the U-shaped protective cover 6 via the buffer spring 7.
[0026] A cushioning pad 9 is provided on the side of the buffer plate 8 near the outer frame 1.
[0027] There are two buffer springs 7.
[0028] The U-shaped protective cover 6 is made of stainless steel.
[0029] The contact surfaces of the through pipe 4 and the connecting shaft 5 are coated with lubricating oil.
[0030] Example 2
[0031] The difference from Embodiment 1 is that a bearing is provided inside the through pipe 4 corresponding to the connecting shaft 5, and the connecting shaft 5 is inserted into the bearing and is configured to be interference-fitted with the bearing.
[0032] Working process: When the sliding door 2 is closed, the buffer plate 8 first contacts the outer frame 1, compressing the buffer spring 7 to reduce noise and impact on the door frame, while preventing fingers from being pinched, and also providing a buffering effect when the sliding door 2 is closed.
[0033] When it is necessary to completely close the sliding door 2, rotate the U-shaped protective cover 6 so that the U-shaped protective cover 6 rotates around the connecting shaft 5 inside the through pipe 4, so that the U-shaped protective cover 6 turns to one side of the sliding door 2 frame, thereby completely closing the sliding door 2.
[0034] The descriptions of the orientation and relative positional relationships of the structure in this utility model, such as descriptions of front, back, left, right, up, and down, do not constitute a limitation on this utility model, but are merely for the convenience of description.
Claims
1. A sliding door with a corner protection structure, characterized in that, Includes an outer frame (1), and two sliding doors (2) are slidably connected inside the outer frame (1). The two sliding doors (2) are staggered inside the outer frame (1). A corner protection mechanism (3) is provided at the top or bottom corner of each sliding door (2). The corner protection mechanism (3) is hinged to the frame of the sliding door (2). The corner protection mechanism (3) includes a U-shaped protective cover (6), a through pipe (4) and a connecting shaft (5). The through pipe (4) is installed on the frame of the sliding door (2). The connecting shaft (5) is placed on an inner side wall of the U-shaped protective cover (6). The connecting shaft (5) is inserted into the through pipe (4). The U-shaped protective cover (6) is rotatably connected to the through pipe (4) through the connecting shaft (5). The U-shaped protective cover (6) can be fitted onto the outer periphery of the frame of the sliding door (2). A buffer mechanism is provided on the outer side wall of the U-shaped protective cover (6) that contacts the outer frame (1).
2. The sliding door with corner protection structure according to claim 1, characterized in that, The buffer mechanism includes a buffer spring (7) and a buffer plate (8), and the buffer plate (8) is connected to the U-shaped protective cover (6) through the buffer spring (7).
3. The sliding door with corner protection structure according to claim 2, characterized in that, A buffer pad (9) is provided on the side of the buffer plate (8) near the outer frame (1).
4. The sliding door with corner protection structure according to claim 3, characterized in that, The number of buffer springs (7) is two.
5. The sliding door with corner protection structure according to claim 4, characterized in that, The U-shaped protective cover (6) is made of stainless steel.
6. The sliding door with corner protection structure according to claim 5, characterized in that, The contact surfaces of the through pipe (4) and the connecting shaft (5) are coated with lubricating oil.
7. The sliding door with corner protection structure according to claim 5, characterized in that, A bearing is installed inside the connecting pipe (4) corresponding to the connecting shaft (5), and the connecting shaft (5) is inserted into the bearing and is set with an interference fit.