A multi-directional door with anti-pinch function

CN224770076UActive Publication Date: 2026-09-18CO (NANJING) NEW BUILDING MATERIALS TECH CO LTD
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Patent Information

Application Number
CN202522723919.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-12-23
Publication Date
2026-09-18
Estimated Expiration
2035-12-23

AI Technical Summary

Technical Problem

[0004]但是上述设备在使用时存在一定不足,传统开合门的门体折叠处存在固定缝隙,无专用防护结构,家庭、办公等人员密集场景中,儿童或成人误触夹手概率过高,鉴于此,我们提出了一种防夹手多向开合门

Benefits of technology

1、该防夹手多向开合门,为了使该装置适配家庭、办公等人员密集场景,通过设置有防护组件,该组件配合一号折叠门与二号折叠门通过滚轮及橡胶材质的圆球沿直角滑轨滑动,可实现双向折叠开合,适配直角空间多场景使用需求,门体折叠处的波纹条采用弹性材质,可随门体折叠伸缩,完全遮挡折叠缝隙,避免夹手风险,长板上的磁条与橡胶条上的磁块吸附定位,配合直角限位板限制门体开合角度,防止过度转动导致碰撞。

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Abstract

This utility model relates to the field of door opening and closing technology, and discloses an anti-pinch multi-directional opening and closing door. The door includes a right-angle door frame with a first folding door and a second folding door mounted on it. A protective component, including a door stop, is also provided on the door frame. To adapt this anti-pinch multi-directional opening and closing door to densely populated environments such as homes and offices, the protective component, in conjunction with the first and second folding doors, slides along a right-angle rail via rollers and rubber spheres, enabling bi-directional folding and opening. This adapts to the needs of various right-angle spaces. The corrugated strip at the folding point of the door is made of elastic material, allowing it to expand and contract with the door folding, completely concealing the folding gap and preventing the risk of pinching. Magnetic strips on the long plate and magnetic blocks on the rubber strip are attracted and positioned, working in conjunction with the right-angle limiting plate to restrict the opening angle of the door and prevent excessive rotation leading to collisions.
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Description

Technical Field

[0001] This utility model relates to the field of door opening and closing technology, specifically a multi-directional door that prevents hand pinching. Background Technology

[0002] In commercial spaces, residential buildings, and public facilities, doors serve as a core component for spatial division and passage, and their safety and flexibility directly impact the user experience.

[0003] The door consists of a multi-directional transmission mechanism, an anti-pinch safety component, a buffer closing unit, an intelligent control module, and an adaptive installation structure. Users can choose the opening and closing method according to space requirements. In manual operation, the door can be opened in both directions or pushed and pulled left and right by gently pushing the door. In automatic mode, the sensor will automatically open after detecting the passage of people. During the closing process, the infrared sensor monitors the door gap area in real time. If an obstacle is detected, the buffer unit will immediately activate damping deceleration and open in the opposite direction. The soft rubber strip further reduces collision damage.

[0004] However, the above-mentioned devices have certain shortcomings in use. Traditional hinged doors have fixed gaps at the folding points of the door body and no dedicated protective structure. In densely populated scenarios such as homes and offices, the probability of children or adults accidentally pinching their hands is too high. In view of this, we propose a multi-directional hinged door to prevent pinching. Utility Model Content

[0005] The purpose of this invention is to provide a multi-directional opening and closing door that prevents hand pinching, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A multi-directional opening and closing door with anti-pinch function includes a right-angle door frame, on which a first folding door and a second folding door are installed. A protective assembly is installed on the right-angle door frame, the protective assembly comprising: Door stops are fixedly installed on the No. 1 folding door and the No. 2 folding door. A horizontal handle is fixedly installed on the No. 2 folding door, and a vertical handle is fixedly installed on the No. 1 folding door. Limit blocks are fixedly installed on the horizontal handle and the vertical handle. A right-angle limiting plate is fixedly installed on the right-angle door frame. A long plate is fixedly installed on the second folding door, and a magnetic strip is fixedly installed on the long plate. A rubber strip is fixedly installed on the first folding door, and a magnetic block is fixedly installed on the rubber strip. A right-angle slide rail is fixedly installed on the right-angle door frame. Rollers are rotatably installed on the first and second folding doors, and balls are rotatably installed on the rollers. Corrugated strips are fixedly installed at the folding points of the first and second folding doors.

[0007] In a further embodiment, multiple sets of the limiting block, roller, ball, and corrugated strip are provided.

[0008] In a further embodiment, the roller and the ball are disposed inside the right-angle slide rail, the ball is made of rubber material, and the ball is attached to the top of the inner side of the right-angle slide rail.

[0009] In a further embodiment, the long plate, the long plate and the magnetic strip are positioned corresponding to the rubber strip and the magnetic block, and the right-angle limiting plate is set at the angle between the first folding door and the second folding door.

[0010] In a further embodiment, an auxiliary component is provided on the right-angle slide rail. The auxiliary component includes a right-angle block, which is fixedly installed on the right-angle slide rail. A circular groove is provided on the right-angle block. One end of a spring is fixedly installed on the right-angle block, and one end of a circular block is fixedly installed on the other end of the spring. An impact block is fixedly installed on the other end of the circular block.

[0011] In a further embodiment, multiple sets of the circular groove, spring, circular block, and impact block are provided.

[0012] In a further embodiment, the spring is disposed inside the circular groove, the circular block slides inside the circular groove, and the impact block corresponds to the position of the roller and the ball.

[0013] Compared with the prior art, this utility model provides a multi-directional opening and closing door that prevents hand pinching, and has the following beneficial effects: 1. This anti-pinch multi-directional opening and closing door is designed to be suitable for densely populated environments such as homes and offices. It incorporates a protective component that works with the first and second folding doors. This component, along with rollers and rubber balls, slides along a right-angle rail, enabling bi-directional folding and opening. It adapts to various scenarios requiring right-angled spaces. The corrugated strips at the door folding points are made of elastic material, allowing them to expand and contract with the door's folding motion, completely concealing the folding gaps and preventing the risk of pinching. Magnetic strips on the long plate and magnetic blocks on the rubber strips are used for positioning, and the right-angle limiting plate restricts the door's opening angle, preventing excessive rotation and potential collisions.

[0014] 2. This anti-pinch multi-directional opening and closing door is equipped with an auxiliary component to adapt to high-frequency use scenarios. This component works with the spring on the right-angle block to push the circular block and drive the impact block. When the roller and the ball slide to the end point of the door's closing or opening, the impact block elastically abuts against the roller, absorbing the impact energy and preventing the door from rigidly colliding with the door frame, thus reducing noise. The elastic force of the spring can help correct the sliding trajectory of the door and prevent the roller from deviating and getting stuck. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model in its closed state; Figure 2This is a schematic diagram of the overall structure in a closed state from another perspective of this utility model; Figure 3 This is a schematic diagram of the overall structure of this utility model in its open state; Figure 4 This is a schematic diagram of the overall structure of this utility model in an open state from another perspective; Figure 5 This is a schematic diagram of part of the structure of this utility model; Figure 6 This is a partial cross-sectional structural diagram of the present invention; Figure 7 This is a cross-sectional view of part of the structure of this utility model.

[0016] Explanation of icon numbers: 1. Right-angle door frame; 2. Folding door No. 1; 3. Folding door No. 2; 4. Protective components; 41. Door stop; 42. Horizontal handle; 43. Vertical handle; 44. Limiting block; 45. Right-angle limiting plate; 46. Long plate; 47. Magnetic strip; 48. Rubber strip; 49. Magnetic block; 410. Right-angle slide rail; 411. Roller; 412. Ball; 413. Corrugated strip; 5. Auxiliary components; 51. Right-angle block; 52. Circular groove; 53. Spring; 54. Circular block; 55. Impact block. Detailed Implementation

[0017] 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.

[0018] In this application, the term "above" indicates the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. It is primarily used to better describe this application and its embodiments, and is not intended to limit the indicated device, element, or component to having a specific orientation, or to construct and operate in a specific orientation. Furthermore, the term "above" may also be used in certain circumstances to indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application according to the specific circumstances.

[0019] Please see Figures 1-7 This utility model provides a technical solution: A multi-directional opening and closing door with anti-pinch function includes a right-angle door frame 1, on which a first folding door 2 and a second folding door 3 are provided.

[0020] In one embodiment of this utility model, a protective component 4 is provided on the right-angle door frame 1. The protective component 4 includes a door stop 41, which is fixedly installed on the first folding door 2 and the second folding door 3. A horizontal handle 42 is fixedly installed on the second folding door 3, and a vertical handle 43 is fixedly installed on the first folding door 2. Limiting blocks 44 are fixedly installed on the horizontal handle 42 and the vertical handle 43. A right-angle limiting plate 45 is fixedly installed on the right-angle door frame 1. A long plate 46 is fixedly installed on the second folding door 3, and a magnetic strip 47 is fixedly installed on the long plate 46. A rubber strip 48 is fixedly installed on the first folding door 2, and a magnetic block 49 is fixedly installed on the rubber strip 48. A right-angle slide rail 410 is fixedly installed. On the right-angle door frame 1, rollers 411 are rotatably installed on folding door 2 and folding door 3. Balls 412 are rotatably installed on rollers 411. Corrugated strips 413 are fixedly installed at the folding points of folding door 2 and folding door 3. There are multiple sets of limiting blocks 44, rollers 411, balls 412 and corrugated strips 413. Rollers 411 and balls 412 are located inside the right-angle slide rail 410. Balls 412 are made of rubber and fit against the top inner side of the right-angle slide rail 410. Long plate 46 and magnetic strip 47 are positioned corresponding to rubber strip 48 and magnetic block 49. Right-angle limiting plate 45 is located at the angle between folding door 2 and folding door 3.

[0021] In this embodiment, the doors can be opened and closed using either the horizontal handle 42 or the vertical handle 43. Folding door 2 and folding door 3 slide along the right-angle slide rail 410 via rollers 411 and rubber balls 412, achieving bidirectional folding and opening, adapting to the multi-directional usage needs of right-angle spaces. The corrugated strip 413 at the folding point of the door is made of elastic material, which can expand and contract synchronously with the folding of the door, completely covering the folding gap and avoiding the risk of pinching fingers from the root. The rubber balls 412 fit against the inner top of the right-angle slide rail 410, reducing sliding friction and buffering slight vibrations. When the door is closed, the magnetic strip 47 on the long plate 46 of folding door 3 and the magnetic block 49 on the rubber strip 48 of folding door 2 attract each other, achieving precise positioning. The right-angle limiting plate 45 limits the maximum opening and closing angle of the door, preventing excessive rotation from causing the door to collide with the door frame. At the same time, the door stop 41 enhances the fit between the door and the door frame, improving safety.

[0022] In one embodiment of this utility model, an auxiliary component 5 is provided on the right-angle slide rail 410. The auxiliary component 5 includes a right-angle block 51, which is fixedly installed on the right-angle slide rail 410. A circular groove 52 is provided on the right-angle block 51. One end of a spring 53 is fixedly installed on the right-angle block 51, and one end of a circular block 54 is fixedly installed on the other end of the spring 53. An impact block 55 is fixedly installed on the other end of the circular block 54. Multiple sets of circular groove 52, spring 53, circular block 54 and impact block 55 are provided. The spring 53 is located inside the circular groove 52, the circular block 54 slides inside the circular groove 52, and the impact block 55 corresponds to the position of the roller 411 and the ball 412.

[0023] In this embodiment, during the opening and closing of the door, when the roller 411 and the ball 412 slide to the end point of the door's closure or opening, they will contact the impact block 55 on the right-angle block 51. The impact block 55 compresses the spring 53 in the circular groove 52 through the circular block 54. The elastic deformation of the spring 53 absorbs the impact energy, preventing the door from rigidly colliding with the door frame and effectively reducing opening and closing noise. At the same time, the reverse elastic force of the spring 53 can help correct the sliding trajectory of the door. If the roller 411 deviates slightly, the spring 53 pushes the impact block 55 to push it back to the correct slide rail position, avoiding jamming and ensuring the smoothness and stability of the door under high-frequency use.

[0024] The signal interaction of each component adopts the PLC control protocol commonly used in industrial equipment, which is common knowledge to those skilled in the art and can be implemented without further detailed description. The control logic and signal interaction method are existing technologies and will not be described in detail. The standard parts used in this application can all be purchased from the market. The specific connection methods of each part are all connected by conventional methods such as riveting and welding that are mature in the existing technology. The standard parts are all of conventional models in the existing technology, and the circuit connection adopts conventional connection methods in the existing technology.

[0025] It should be noted that the above electrical components are all existing technology products. Those skilled in the art should select, install, and complete the circuit debugging work according to the needs of use to ensure that each electrical appliance can work normally. The components are all general standard parts or components known to those skilled in the art. Their structure and principle can be known by those skilled in the art through technical manuals or conventional experimental methods. No specific restrictions are made here. The supporting structures of the hydraulic drive structure appearing in this application document, such as hydraulic tanks and hydraulic pumps, are existing equipment and will not be described in detail here.

[0026] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A multi-directional opening and closing door with anti-pinch function, comprising a right-angle door frame (1), wherein a first folding door (2) and a second folding door (3) are provided on the right-angle door frame (1), characterized in that: The right-angle door frame (1) is provided with a protective component (4), the protective component (4) including: Door stop (41) is fixedly installed on the first folding door (2) and the second folding door (3). A horizontal handle (42) is fixedly installed on the second folding door (3), and a vertical handle (43) is fixedly installed on the first folding door (2). Limiting blocks (44) are fixedly installed on the horizontal handle (42) and the vertical handle (43). A right-angle limiting plate (45) is fixedly installed on the right-angle door frame (1). A long plate (46) is fixedly installed on the second folding door (3). A magnetic strip (47) is fixedly installed on the long plate (46). A rubber strip (48) is fixedly installed on the first folding door (2). A magnetic block (49) is fixedly installed on the rubber strip (48). A right-angle slide rail (410) is fixedly installed on the right-angle door frame (1). Rollers (411) are rotatably installed on the first folding door (2) and the second folding door (3). A ball (412) is rotatably installed on the roller (411). Corrugated strips (413) are fixedly installed at the folding parts of the first folding door (2) and the second folding door (3).

2. The anti-pinch multi-directional opening and closing door according to claim 1, characterized in that: Multiple sets of the limiting block (44), roller (411), ball (412) and corrugated strip (413) are provided.

3. The anti-pinch multi-directional opening and closing door according to claim 1, characterized in that: The roller (411) and the ball (412) are disposed inside the right-angle slide rail (410). The ball (412) is made of rubber and is attached to the top of the inner side of the right-angle slide rail (410).

4. The anti-pinch multi-directional opening and closing door according to claim 1, characterized in that: The long plate (46), the long plate (46) and the magnetic strip (47) are positioned corresponding to the rubber strip (48) and the magnetic block (49), and the right angle limiting plate (45) is set at the angle between the first folding door (2) and the second folding door (3).

5. The anti-pinch multi-directional opening and closing door according to claim 1, characterized in that: An auxiliary component (5) is provided on the right-angle slide rail (410). The auxiliary component (5) includes a right-angle block (51). The right-angle block (51) is fixedly installed on the right-angle slide rail (410). A circular groove (52) is opened on the right-angle block (51). One end of a spring (53) is fixedly installed on the right-angle block (51). One end of a circular block (54) is fixedly installed on the other end of the spring (53). An impact block (55) is fixedly installed on the other end of the circular block (54).

6. The anti-pinch multi-directional opening and closing door according to claim 5, characterized in that: Multiple sets of the circular groove (52), spring (53), circular block (54) and impact block (55) are provided.

7. The anti-pinch multi-directional opening and closing door according to claim 5, characterized in that: The spring (53) is disposed inside the circular groove (52), the circular block (54) slides inside the circular groove (52), and the impact block (55) corresponds to the position of the roller (411) and the ball (412).