A lateral translation type anti-collision door
Patent Information
- Application Number
- CN202522379835.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-10
- Publication Date
- 2026-10-30
- Estimated Expiration
- 2035-11-10
AI Technical Summary
[0002]小尺寸空间(如面积≤3.5㎡的浴室、迷你客房)因可用空间有限,传统平开门开合时需占用门洞外侧或内侧的扇形空间,易碰撞室内固定设施(如浴室马桶、房间床头柜);传统推拉门虽节省空间,但需在门洞两侧墙体预留轨道安装空间,受墙体结构限制大且轨道易积灰堵塞
[0016]与现有技术相比,本实用新型提供了一种横向平移式防碰撞门,具备以下有益效果:
Smart Images

Figure CN224919110U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of door and window technology, specifically to a horizontal sliding anti-collision door. Background Technology
[0002] In small spaces (such as bathrooms or mini-guest rooms with an area of ≤3.5㎡), the limited available space means that traditional hinged doors require a fan-shaped space on the outside or inside of the doorway to open and close, which can easily cause collisions with fixed indoor fixtures (such as bathroom toilets and bedside tables). While traditional sliding doors save space, they require reserved space in the walls on both sides of the doorway for track installation, which is greatly limited by the wall structure and the tracks are prone to dust accumulation and blockage. Existing door designs lack a structural design that allows for horizontal sliding without requiring additional space and can be manually pushed, making it difficult to adapt to the needs of small spaces. There is an urgent need for a simple and easy-to-operate horizontal sliding door to solve the above problems. Utility Model Content
[0003] (a) Technical problems to be solved
[0004] This utility model provides a horizontal sliding anti-collision door that can achieve horizontal guidance. It drives the horizontal sliding by means of a connecting rod that is connected to the door body and the door frame by pins. It is highly efficient, energy-saving and can effectively prevent collisions.
[0005] (II) Technical Solution
[0006] To achieve the above objectives, this utility model provides the following technical solution: a horizontally sliding anti-collision door, comprising: a door frame, on both its top and bottom inner sides being provided with horizontally extending U-shaped guide rails; a door body, on its top and bottom corresponding to the positions of the U-shaped guide rails being provided with pulley assemblies; the pulley assembly comprising a pulley and a fulcrum shaft; the pulley being rotatably mounted on one end of the fulcrum shaft via a bearing and housed within the U-shaped guide rail; the other end of the fulcrum shaft being rotatably connected to the door body, such that the door body... The door is capable of deflecting relative to the door frame about the axis of the fulcrum; the drive linkage assembly includes at least one drive link; one end of the drive link is hinged to the lateral direction of the door body via a first pin, and the other end of the drive link is hinged to the side wall of the door frame via a second pin; when an external force is applied to the door body, the drive link rotates about the second pin and drives the door body to translate through the first pin, while the pulley rolls along the U-shaped guide rail, and the door body can adaptively deflect about the fulcrum axis according to the force applied to avoid collision.
[0007] In one possible implementation, the drive linkage group includes two drive linkages, which are symmetrically arranged at the top and bottom of the door body, respectively, and together with the door frame and the door body, form a parallel four-bar linkage mechanism.
[0008] In one possible implementation, one end of the drive linkage is hinged to the middle position of the door body in the lateral direction via a first pin.
[0009] In one possible implementation, the inner surface of the U-shaped guide rail is a polished surface or is covered with a pad made of a low-friction coefficient material.
[0010] In one possible implementation, the door is made of a lightweight material, such as a PVC waterproof board, a honeycomb aluminum board, or tempered glass.
[0011] In one possible implementation, the U-shaped guide rail of the door frame is provided with elastic limiting blocks at both ends to limit the travel of the pulley.
[0012] In one possible implementation, a sealing strip is provided at the contact edge between the door body and the door frame.
[0013] In one possible implementation, the door frame is made of high-strength aluminum alloy profiles.
[0014] In one possible implementation, the second pin is fitted with a connecting rod retainer.
[0015] (III) Beneficial Effects
[0016] Compared with the prior art, this utility model provides a lateral sliding anti-collision door, which has the following beneficial effects:
[0017] A horizontal sliding anti-collision door includes a door frame, a door body, a pulley assembly, and a drive linkage. External force drives the pulleys to move horizontally along a guide rail away from the door frame. Simultaneously, the second end of the door body rotates around a hinge point on a fixed base point via the drive linkage, causing the door body to gradually retract towards the installation side from a closed state, ultimately opening; conversely, it retracts towards the door body to close. Through coordinated translation and rotation, the door body retracts laterally when opening, saving more than 50% of installation space compared to traditional sliding doors. It is suitable for narrow areas, and the door body has no outward or inward protrusions when opening, avoiding collisions with surrounding objects or people. It eliminates the need for complex drive components, reducing costs and failure rates. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the disassembly state of the horizontal sliding anti-collision door of this utility model;
[0019] Figure 2 This is a schematic diagram of the first overall structure of the horizontal sliding anti-collision door of this utility model;
[0020] Figure 3 This is a schematic diagram of the overall second structure of the horizontal sliding anti-collision door of this utility model;
[0021] Figure 4 yes Figure 3 The diagram shows the structure along section AA.
[0022] Figure 5 This is a schematic diagram of the overall structure of the pulley assembly of this utility model;
[0023] Figure 6 This is a schematic diagram of the anti-collision movement mode of a horizontally sliding anti-collision door.
[0024] In the diagram: 1. Door frame; 2. Door body; 3. Pulley assembly; 31. Pulley; 32. Pivot shaft; 11. U-shaped guide rail; 4. Drive linkage assembly; 41. Drive linkage; 42. First pin (door body end); 43. Second pin (door frame end); 44. Linkage fixing component. Detailed Implementation
[0025] 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.
[0026] Please see Figure 1-6 This is a structural schematic diagram of the horizontal sliding anti-collision door and its specific components according to this utility model. As shown in the figure, the horizontal sliding anti-collision door of this utility model includes a door frame 1, on which horizontally extending U-shaped guide rails 11 are provided on both the inner top and inner bottom sides; a door body 2, on which pulley assemblies 3 are provided at the top and bottom corresponding to the positions of the U-shaped guide rails 11; the pulley assembly 3 includes a pulley 31 and a fulcrum shaft 32; the pulley 31 is rotatably fitted onto one end of the fulcrum shaft 32 via a bearing and housed within the U-shaped guide rail 11; the other end of the fulcrum shaft 32 is rotatably connected to the door body 2, so that... The door body 2 can deflect relative to the door frame 1 around the axis of the fulcrum axis 32; the drive linkage group 4 includes at least one drive linkage 41; one end of the drive linkage 41 is hinged to the lateral direction of the door body 2 through the first pin 42, and the other end of the drive linkage 41 is hinged to the side wall of the door frame 1 through the second pin 43; when an external force is applied to the door body 2, the drive linkage 41 rotates around the second pin 43 and drives the door body 2 to translate through the first pin 42, while the pulley 31 rolls along the U-shaped guide rail 11, and the door body 2 can adaptively deflect around the fulcrum axis 32 according to the force to avoid collision.
[0027] The pulley is made of nylon and has a metal pivot shaft (specifically a cylindrical structure) at its center. One end of the pivot shaft is connected to the pulley via a bearing (ensuring that the pulley can rotate freely around the pivot shaft), and the other end is vertically fixed to the pulley mounting position at the top or bottom of the door. The connection between the pivot shaft and the door is a rotatable connection, meaning that the door can rotate around the pivot shaft at a small angle to accommodate angle changes during linkage drive.
[0028] The slide rail is embedded in the corresponding U-shaped guide rail, ensuring that the pulley can slide smoothly horizontally along the guide rail, thereby driving the door to move laterally along the guide rail.
[0029] In one possible implementation, the drive linkage group 4 includes two drive linkages 41, which are symmetrically arranged at the top and bottom of the door body 2, and together with the door frame 1 and the door body 2, they form a parallel four-bar linkage mechanism.
[0030] In one possible implementation, one end of the drive link 41 is hinged to the middle of the door body 2 in the lateral direction via a first pin 42.
[0031] One end of the drive linkage is connected to the middle of the door body 2 in the lateral direction via a first pin (a pin hole is preset in the middle of the side of the door body to ensure that the drive linkage can rotate around the first pin). The other end of the drive linkage is embedded in a preset mounting groove in the inner side wall of the door frame, and this end is also connected to the door frame 1 via a second pin (a pin hole is preset in the mounting groove of the door frame, and the axis of the second pin is aligned with the side of the door body to ensure that the drive linkage can rotate around the second pin at the end of the door frame).
[0032] The installation height and angle of the two drive linkages are completely symmetrical, forming a triangular stable transmission structure of "door frame - drive linkage - door body". When a person pushes either side of the door body, the drive linkage can adaptively adjust the angle through the rotation of the pins at both ends, and at the same time drive the pulley to slide horizontally along the guide rail, ultimately realizing the lateral translation and opening and closing of the door body.
[0033] In one possible implementation, the inner surface of the U-shaped guide rail 11 is a polished surface or covered with a pad made of a low coefficient of friction material.
[0034] In one possible implementation, the door body 2 is made of a lightweight material, namely a PVC waterproof board (8-10mm thick), a honeycomb aluminum board, or tempered glass (5-8mm thick). Roller mounting positions are provided at the top and bottom of the door body corresponding to the guide rail positions.
[0035] In one possible implementation, the U-shaped guide rail 11 of the door frame 1 is provided with elastic limiting blocks (not shown) at both ends to limit the travel of the pulley 31. The elastic limiting blocks can prevent the pulley from overtraveling and causing the door to detach from the guide rail, and can also prevent the pulley from being damaged by hard impact, thus extending the service life of the pulley.
[0036] In one possible implementation, a sealing strip is provided at the contact edge between the door body 2 and the door frame 1. Specifically, it can be an EPDM waterproof sealing strip to ensure a dustproof seal when the door is closed (preventing water leakage in a bathroom setting).
[0037] In one possible implementation, the door frame 1 is made of high-strength aluminum alloy profile.
[0038] In one possible implementation, the second pin 43 is fitted with a connecting rod retainer 44.
[0039] The door frame adopts a rectangular frame structure to fit the size of bathroom / room door openings (standard width 700-900mm, height 2000-2200mm). The top inner side and bottom of the door frame are equipped with horizontal guide grooves, i.e. guide rails. The guide rails are U-shaped guide rail groove structures. The inner surface of the grooves is polished or has a pad with a low coefficient of friction material to reduce friction.
[0040] Movement process:
[0041] Opening process: External force drives the pulley to move horizontally along the U-shaped guide rail away from the door frame. At the same time, the second end of the door rotates around the hinge point of the second pin through the drive linkage, so that the door gradually closes from the closed state to the installation side (such as the wall side), and finally completes the opening.
[0042] Closing process: The external force reverses and drives the pulley to move horizontally along the U-shaped guide rail towards the door frame. At the same time, the drive linkage rotates in the opposite direction, pushing the second end of the door to move in the closing direction until the door fits against the door frame, completing the closure.
[0043] The above description, in conjunction with the accompanying drawings, details the lateral sliding anti-collision door of this utility model. The lateral sliding anti-collision door includes a door frame with horizontally extending U-shaped guide rails on its top and bottom inner sides; a door body with pulley assemblies at its top and bottom corresponding to the U-shaped guide rails; the pulley assembly includes a pulley and a fulcrum shaft; the pulley is rotatably mounted on one end of the fulcrum shaft via a bearing and housed within the U-shaped guide rail; the other end of the fulcrum shaft is rotatably connected to the door body, allowing the door body to deflect relative to the door frame around the axis of the fulcrum shaft; and a drive linkage assembly including at least one drive linkage; one end of the drive linkage is hinged to the lateral direction of the door body via a first pin, and the other end of the drive linkage is hinged to the side wall of the door frame via a second pin; when an external force is applied to the door body, the drive linkage rotates around the second pin and drives the door body to translate via the first pin, while the pulley rolls along the U-shaped guide rail, allowing the door body to adaptively deflect around the fulcrum shaft according to the applied force to avoid collisions.
[0044] This invention overcomes the shortcomings of traditional doors in small spaces, such as taking up space when opening and closing, being prone to colliding with obstacles, and having their installation restricted by the wall structure. By using upper and lower guide rail-pulley assemblies for guidance and a connecting rod between the door body and the door frame for driving a horizontal sliding door, the door can be opened and closed horizontally by pushing it, thus improving the utilization rate of small spaces.
[0045] With this structural design, no large horizontal space is required. Through the coordinated movement of "translation + rotation", the door retracts to the side when it opens, saving more than 50% of the installation space compared to traditional sliding doors. It is suitable for narrow areas. When the door opens, there are no outward or inward protrusions, avoiding collisions with surrounding objects or people. The structure is simple, with movement achieved only through pulleys and linkages. There is no need for multiple sets of complex drive components, reducing costs and failure rates.
[0046] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0047] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A lateral sliding anti-collision door, characterized in that, The lateral sliding anti-collision door includes: The door frame has horizontally extending U-shaped guide rails on both the inner top and inner bottom sides; The door body has pulley assemblies installed at its top and bottom corresponding to the positions of the U-shaped guide rail; The pulley assembly includes a pulley and a fulcrum shaft; The pulley is rotatably mounted on one end of the fulcrum shaft via a bearing and housed within the U-shaped guide rail; The other end of the pivot axis is rotatably connected to the door body, so that the door body can deflect relative to the door frame about the axis of the pivot axis; A drive linkage assembly, including at least one drive linkage; One end of the drive linkage is hinged to the lateral direction of the door body via a first pin, and the other end of the drive linkage is hinged to the side wall of the door frame via a second pin. When an external force is applied to the door, the drive linkage rotates around the second pin and drives the door to translate through the first pin. At the same time, the pulley rolls along the U-shaped guide rail, and the door can adaptively deflect around the fulcrum axis according to the force applied to avoid collision.
2. The lateral sliding anti-collision door according to claim 1, characterized in that, The drive linkage assembly includes two drive linkages, which are symmetrically arranged at the top and bottom of the door body, and together with the door frame and the door body, they form a parallel four-bar linkage mechanism.
3. The lateral sliding anti-collision door according to claim 1 or 2, characterized in that, One end of the drive linkage is hinged to the middle of the door body in the lateral direction via a first pin.
4. The lateral sliding anti-collision door according to claim 1, characterized in that, The inner surface of the U-shaped guide rail is a polished surface or is covered with a pad made of a low-friction coefficient material.
5. The lateral sliding anti-collision door according to claim 1, characterized in that, The door is made of lightweight material, which is one of PVC waterproof board, honeycomb aluminum board or tempered glass.
6. The lateral sliding anti-collision door according to claim 1, characterized in that, The door frame has elastic limit blocks at both ends of the U-shaped guide rail to limit the movement of the pulley.
7. The lateral sliding anti-collision door according to claim 1, characterized in that, A sealing strip is provided at the contact edge between the door body and the door frame.
8. The lateral sliding anti-collision door according to claim 1, characterized in that, The door frame is made of high-strength aluminum alloy profiles.
9. The lateral sliding anti-collision door according to claim 1, characterized in that, The second pin is fitted with a connecting rod fixing component.