Belt wheel driven multi-section sliding door one-way linkage door opening and closing device
By designing pulley drive and servo motor drive components, the problems of synchronization and limited installation space in traditional multi-section automatic doors are solved, realizing the synchronous opening and closing and efficient operation of multi-section sliding doors.
Patent Information
- Application Number
- CN202520104579.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-16
- Publication Date
- 2026-03-06
- Estimated Expiration
- 2035-01-16
AI Technical Summary
Traditional multi-section automatic doors, when controlled by multiple cylinders, suffer from problems such as asynchronous strokes and limited installation space.
The multi-section sliding door unidirectional linkage opening and closing device with belt drive utilizes a servo motor and reducer drive assembly to achieve synchronous opening and closing of multiple sliding doors through belt drive components. The opening and closing rate of the sliding doors can be adjusted by programming, and the tooth ratio of the drive belt is set according to the sliding door stroke ratio.
It enables the simultaneous opening and closing of multiple sliding doors, saving installation space and improving processing efficiency.
Smart Images

Figure CN223975036U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electric door technology, and in particular to a single-direction linkage opening and closing device for a multi-section sliding door with pulley drive. Background Technology
[0002] A multi-section sliding door with single-direction opening refers to a sliding door system consisting of multiple door panels, where each panel can only slide and open in one direction. Typically, these door panels slide along a fixed track, only able to be pushed open to one side, not in the opposite direction. This design is common in space-saving applications such as wardrobes, partition walls, or bathrooms. Traditional multi-section automatic doors (single-direction opening doors) use multiple cylinders to drive the sliding door mechanism, with one cylinder controlling one door. This typically presents the following problems: the cylinders have different strokes, each controlling multiple door sections; the doors cannot open and close synchronously; and the required cylinders significantly limit installation space. Summary of the Invention
[0003] In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to realize a multi-section sliding door unidirectional linkage opening and closing device with pulley drive that opens and closes the door simultaneously.
[0004] The objective of this utility model is achieved through the following technical solution:
[0005] A multi-section sliding door unidirectional linkage opening and closing device with pulley drive includes a sliding door, a connecting bracket, a drive assembly, pulley drive components, and a belt pressure plate. The number of sliding doors is multiple, and the number of pulley drive components is equal to the number of sliding doors. Each pulley drive component includes a drive pulley, a driven pulley, and a belt sleeved on the drive pulley and the driven pulley. Multiple drive pulleys are located on the drive assembly and are coaxially arranged. The belt pressure plate is located on the belt. The sliding door is connected to the belt pressure plate through the connecting bracket.
[0006] Preferably, the sliding door includes a first sliding door and a second sliding door, the drive pulley includes a first drive pulley and a second drive pulley, the driven pulley includes a first driven pulley and a second driven pulley, the belt includes a first belt and a second belt, the first drive pulley is connected to the first driven pulley via the first belt to make the first driven pulley rotate in both directions, the second drive pulley is connected to the second driven pulley via the second belt to make the second driven pulley rotate in both directions, thereby causing the belt pressure plate to reciprocate between the drive pulley and the driven pulley.
[0007] Preferably, the first drive pulley and the first driven pulley are located on the same straight line.
[0008] Preferably, the second belt is parallel to the first belt.
[0009] Preferably, the travel of the first belt is greater than the travel of the second belt.
[0010] Preferably, the travel distance of the first sliding door is twice that of the second sliding door.
[0011] Preferably, the number of teeth on the first drive pulley is twice the number of teeth on the second drive pulley.
[0012] Preferably, the number of drive pulleys is equal to the number of sliding doors.
[0013] Preferably, the connecting bracket is connected to the sliding door by bolts.
[0014] Preferably, the drive assembly includes a servo motor and a reducer, wherein the servo motor can adjust the sliding door opening and closing speed through programming.
[0015] Compared with existing technologies, the multi-section sliding door one-way linkage opening and closing device with pulley drive of this utility model has the following advantages:
[0016] This application presents a multi-section sliding door unidirectional linkage opening and closing device with belt drive. It controls multiple sets of belt drive components through a set of drive components. The tooth ratio of the multiple drive belt pulleys is set according to the stroke ratio of the multiple sliding doors, thereby realizing the synchronous opening and closing of multiple sliding doors and saving installation space. The drive components include a servo motor and a reducer. The servo motor can adjust the opening and closing speed of the sliding doors through programming, thereby improving processing efficiency. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of the pulley-driven multi-section sliding door one-way linkage opening and closing device of this application;
[0018] Figure 2 This is a perspective view of the pulley-driven multi-section sliding door one-way linkage opening and closing device of this application;
[0019] Figure 3 for Figure 1 A schematic diagram of a multi-section sliding door one-way linkage opening and closing device with pulley drive, without the sliding door and connecting bracket;
[0020] Figure 4 for Figure 1 A schematic diagram of the structure of a belt drive component;
[0021] Figure 5 for Figure 1 Top view of the structure.
[0022] In the diagram: 100, Sliding door one; 101, First drive pulley; 102, First driven pulley; 103, First belt; 104, First pulley shaft; 200, Sliding door two; 201, Second drive pulley; 202, Second driven pulley; 203, Second belt; 204, Second pulley shaft; 300, Belt pressure plate; 400, Connecting bracket; 500, Servo motor; 600, Reducer; 700, Frame. Detailed Implementation
[0023] 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.
[0024] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or it can be fixed through another intermediate component. When a component is said to be "connected to" another component, it can be directly connected to the other component or it may be fixed through another intermediate component. When a component is said to be "set on" another component, it can be set directly on the other component or it may be set through another intermediate component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.
[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0026] Figures 1-5 This utility model discloses a multi-section sliding door unidirectional linkage opening and closing device with pulley drive, comprising sliding doors, a connecting bracket 400, a drive assembly, a pulley drive component, and a belt pressure plate 300. Multiple sliding doors are included. The pulley drive component includes drive pulleys, driven pulleys, and a belt connecting the drive pulleys and driven pulleys. Multiple drive pulleys are located on the drive assembly and are concentrically arranged. The belt pressure plate 300 is located on the belt. The sliding doors are connected to the belt pressure plate 300 via the connecting bracket 400, thereby realizing the opening and closing of the sliding doors. The tooth ratio of the multiple drive pulleys is set according to the stroke ratio of the multiple sliding doors.
[0027] Specifically, the number of pulley drive components is equal to the number of sliding doors.
[0028] Specifically, the number of drive pulleys is equal to the number of sliding doors.
[0029] In this embodiment, the number of sliding doors is two. In other embodiments, the number of sliding doors is selected according to actual needs.
[0030] The sliding door includes sliding door one 100 and sliding door two 200. The drive pulleys include a first drive pulley 101 and a second drive pulley 201. The driven pulleys include a first driven pulley 102 and a second driven pulley 202. The belts include a first belt 103 and a second belt 203. The first drive pulley 101 is connected to the first driven pulley 102 through the first belt 103, so that the first driven pulley 102 rotates in both directions. The second drive pulley 201 is connected to the second driven pulley 202 through the second belt 203, so that the second driven pulley 202 rotates in both directions. This causes the belt pressure plate 300 to reciprocate between the drive pulleys and the driven pulleys.
[0031] Specifically, the first driving pulley 101 and the first driven pulley 102 are located on the same straight line.
[0032] Specifically, the second belt 203 is parallel to the first belt 103.
[0033] In this embodiment, the travel of the first belt 103 is greater than the travel of the second belt 203. In a preferred embodiment, the travel of sliding door 100 is twice that of sliding door 200, therefore the number of teeth on the first drive pulley 101 is twice the number of teeth on the second drive pulley 201, allowing the two sliding doors to open and close synchronously. In this embodiment, the connecting bracket 400 is connected to the sliding door by bolts.
[0034] The drive components include a servo motor 500 and a reducer 600. The servo motor 500 can adjust the sliding door opening and closing speed through programming.
[0035] The multi-section sliding door one-way linkage opening and closing device with pulley drive also includes a frame 700, and the pulley drive component also includes a first pulley shaft 104 and a second pulley shaft 204. The first pulley shaft 104 and the second pulley shaft 204 are fixed on the frame 700, the first driven pulley 102 is fixed on the first pulley shaft 104, and the second driven pulley 202 is fixed on the second pulley shaft 204.
[0036] In this application, the multi-section sliding door unidirectional linkage opening and closing device with belt drive is used as shown in the figure below. The servo motor 500 and reducer 600 combine to cause the first drive pulley 101 and the second drive pulley 201 to rotate forward and reverse. The first drive pulley 101 is connected via a first belt 103, causing the first driven pulley 102 to rotate forward and reverse. The second drive pulley 201 is connected via a second belt 203, causing the second driven pulley 202 to rotate forward and reverse. This causes the two belt pressure plates 300 to move back and forth between the drive pulleys and the driven pulleys. The sliding door 100 is connected to the belt pressure plates 300 via a connecting bracket 400. The belt pressure plates 300 move back and forth between the first drive pulley 101 and the first driven pulley 102, thereby opening and closing the sliding door 100. Sliding door 200 is connected to belt pressure plate 300 via connecting bracket 400. Belt pressure plate 300 moves back and forth between second drive pulley 201 and second driven pulley 202, thus opening and closing sliding door 200. By calculating the ratio between the strokes of sliding door 100 and sliding door 200, the tooth ratio between first drive pulley 101 and second drive pulley 201 can be calculated, ensuring that sliding doors with shorter strokes open and close completely, while sliding doors with longer strokes also open and close precisely. Figure 1 As shown, the stroke of sliding door 100 is twice that of sliding door 200, therefore the number of teeth of the first drive pulley 101 is twice that of the second drive pulley 201, so the two sliding doors can open and close synchronously.
[0037] This application presents a multi-section sliding door unidirectional linkage opening and closing device with pulley drive. It controls multiple sets of pulley drive components through a set of drive components. The tooth ratio of the multiple drive pulleys is set according to the stroke ratio of the multiple sliding doors, thereby realizing the synchronous opening and closing of multiple sliding doors and saving installation space. The drive components include a servo motor 500 and a reducer 600. The servo motor 500 can adjust the opening and closing speed of the sliding doors through programming to improve processing efficiency.
[0038] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that for those skilled in the art, several modifications and improvements can be made without departing from the concept of this utility model. These are all equivalent modifications and improvements made to the above embodiments based on the essential technology of this utility model, and all of these fall within the protection scope of this utility model.
Claims
1. A wheeled multi-leaf sliding door one-way linkage door operator, characterised in that: The sliding door, the connecting bracket, the driving assembly, the belt pulley transmission and the belt pressing plate, the number of the sliding door is multiple, the number of the belt pulley transmission is equal to the number of the sliding door, each belt pulley transmission includes a driving belt pulley, a driven belt pulley and a belt, the driving belt pulley is coaxially arranged on the driving assembly, the belt pressing plate is located on the belt, and the sliding door is connected with the belt pressing plate through the connecting bracket.
2. A one-way linked door opening device for a multi-leaf door with wheel transmission according to claim 1, characterized in that: The sliding door includes a first sliding door and a second sliding door, the driving belt pulley includes a first driving belt pulley and a second driving belt pulley, the driven belt pulley includes a first driven belt pulley and a second driven belt pulley, the belt includes a first belt and a second belt, the first driving belt pulley is connected with the first driven belt pulley through the first belt to make the first driven belt pulley rotate in opposite directions, the second driving belt pulley is connected with the second driven belt pulley through the second belt to make the second driven belt pulley rotate in opposite directions, and the belt pressing plate reciprocates between the driving belt pulley and the driven belt pulley.
3. A one-way linked door operator for a multi-leaf door with wheel drive as claimed in claim 2, characterised in that: The first driving belt pulley and the first driven belt pulley are located on the same straight line.
4. A one-way linked door operator arrangement for a multi-leaf door with wheel drive according to claim 2, characterized in that: The second belt is parallel to the first belt.
5. A one-way linked door operator for a multi-leaf door with wheel drive as claimed in claim 2, characterized in that: The stroke of the first belt is greater than that of the second belt.
6. A one-way linked door operator arrangement for a multi-leaf door with wheel drive according to claim 2, characterized in that: The stroke of the first sliding door is twice that of the second sliding door.
7. A one-way linked door operator arrangement for a multi-leaf door with wheel drive according to claim 6, characterized in that: The number of the driving belt pulley is equal to the number of the sliding door.
8. A one-way linked door operator for a multi-leaf door with a wheeled drive according to claim 1, characterized in that: The connecting bracket is connected with the sliding door through bolts.
9. The one-way linked door opening and closing device of a multi-section door with a wheeled transmission according to claim 1, characterized in that: The driving assembly includes a servo motor and a speed reducer, and the servo motor can adjust the opening and closing speed of the sliding door through programming.
10. A one-way linked door operator for a multi-leaf door with wheel drive according to claim 1, characterized in that: