Electric sliding door with reinforced buffer structure

By introducing components such as limiting grooves, buffer rubber heads, sealing piston columns, and guide airbags into electric sliding doors, multi-layer buffering is achieved, solving the problem of impact force damaging the door frame during the opening and closing of electric sliding doors, and improving the smoothness and practicality of opening and closing.

CN223838900UActive Publication Date: 2026-01-27JINGJIANG JIANGONG MASCH MFG CO LTD
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Patent Information

Application Number
CN202520353790.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-03
Publication Date
2026-01-27
Estimated Expiration
2035-03-03

AI Technical Summary

Technical Problem

Existing electric sliding doors generate impact force due to inertia during opening and closing, causing damage to the door frame. The existing anti-collision blocks are rigidly connected to the door frame and cannot effectively dissipate the impact force, reducing their practicality.

Method used

A reinforced buffer structure was designed, including a limiting groove, a buffer rubber head, a sealing piston column, a guide airbag, and a friction block. The rubber material of the limiting groove and the buffer rubber head provides buffering, the air compression of the sealing piston column slows down the flow, and the expansion of the guide airbag pushes the limiting slide column and the friction block to increase friction, thus achieving a multi-layer buffering effect.

Benefits of technology

It effectively absorbs and dissipates the impact force of the sliding door panel, improving the smoothness and practicality of the door panel opening and closing, and reducing damage to the door frame.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223838900U_ABST
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Abstract

The electric sliding door with the reinforced buffering structure comprises an installation door frame, a fixed door plate is fixedly connected to the inner wall of one side of the installation door frame, a driving motor is fixedly connected to the inner wall of an opening of the installation door frame, and the output end of the driving motor is fixedly connected with a transmission lead screw. And the inner wall of the opening of the mounting door frame is slidably connected with a translation door plate, the side surface, facing the fixed door plate, of the translation door plate is provided with a limiting groove, and the inner wall of the mounting door frame is provided with a groove. The electric sliding door with the reinforced buffering structure is provided with a limiting groove and a buffering rubber head, so that when the electric sliding door works, the sliding door plate moves, the limiting groove in the surface of the sliding door plate is in butt joint with the buffering rubber head, the buffering rubber head is made of a rubber material for buffering, and meanwhile, the buffering rubber head drives a connecting sliding block to slide so as to conveniently compress a spring; therefore, the impact of the translation door plate is absorbed, and the buffering effect on the translation door plate is improved.
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Description

Technical Field

[0001] This utility model relates to the field of electric sliding door technology, specifically an electric sliding door with a reinforced buffer structure. Background Technology

[0002] An electric sliding door is a type of door that opens and closes by sliding left and right along a track, driven by electricity. It mainly consists of the door body, drive unit, track, control system, and safety devices. These doors are commonly used in commercial spaces, industrial plants, garages, and some large residential areas because their opening mechanism facilitates vehicle and pedestrian access, and they offer good sealing and aesthetics. The drive unit is connected to the door body via a transmission mechanism. When the control system receives an open signal, the motor starts, driving the door body to slide to one side along the track until it is fully open. When it receives a close signal, the motor reverses, sliding the door body in the opposite direction until it is closed. During the sliding process, the track guides and supports the door body, ensuring smooth movement.

[0003] When using an electric sliding door, the door panel will generate an impact force during the opening and closing process due to inertia, which will damage the frame. Existing technology sets anti-collision blocks on the surface of the door frame for buffering, but the rigid connection between the anti-collision blocks and the door frame is not conducive to dissipating the impact force, reducing practicality. Utility Model Content

[0004] The purpose of this utility model is to provide an electric sliding door with a reinforced buffer structure, in order to solve the problem mentioned in the background art that the existing technology sets anti-collision blocks on the surface of the door frame for buffering, but the rigid connection between the anti-collision blocks and the door frame is not conducive to dissipating the impact force, thus reducing the practicality.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an electric sliding door with a reinforced buffer structure, comprising a mounting door frame, a fixed door panel fixedly connected to one inner wall of the mounting door frame, a drive motor fixedly connected to the inner wall of the opening of the mounting door frame, a transmission screw fixedly connected to the output end of the drive motor, a sliding door panel slidably connected to the inner wall of the opening of the mounting door frame, a limiting groove formed on the side surface of the sliding door panel facing the fixed door panel, a groove provided on the inner wall of the mounting door frame, and a connecting slider slidably mounted in the groove of the mounting door frame, a limiting block fixedly connected to one end of the connecting slider, a sealing piston fixedly connected to the side surface of the limiting block, a buffer rubber head fixedly connected to the other end of the connecting slider, and a linkage friction mechanism provided inside the connecting slider, which introduces air into the guide airbag through an air guide slot to facilitate its expansion and push the limiting slide column and friction block to slide out.

[0006] Preferably, the transmission screw is rotatably connected to the inner wall of the mounting door frame, and the transmission screw is threadedly connected to the sliding door panel.

[0007] Using the above technical solution, the drive motor drives the transmission screw to rotate, and the thread of the transmission screw drives the sliding door panel to slide horizontally.

[0008] Preferably, the fixed door panel and the sliding door panel are staggered, the limiting groove is correspondingly provided with the connecting slider, and a spring is connected between the sealing piston column and the groove for installing the door frame.

[0009] By adopting the above technical solution, the fixed door panel and the sliding door panel are staggered to facilitate the movement of the fixed door panel so that people can pass through. The limiting groove and the connecting slider are correspondingly set to facilitate buffering.

[0010] Preferably, the width of the buffer rubber head is smaller than the width of the limiting groove, the buffer rubber head is a block made of rubber, and the outer surface of the sealing piston column is in contact with the inner wall of the mounting door frame groove.

[0011] Using the above technical solution, the buffer rubber head is inserted into the interior of the limiting groove to facilitate contact buffering, and the sealing piston column is decelerated and buffered by air pressure.

[0012] Preferably, the linkage friction mechanism includes an air guide groove, which is formed on the surface of the sealing piston column. The surface of the sealing piston column is provided with a groove. A guide air bag is fixedly connected to the inner wall of the groove of the sealing piston column. A limiting slide is fixedly connected to the outer surface of the guide air bag. A friction block is fixedly connected to the outer surface of the limiting slide.

[0013] By adopting the above technical solution, the air guide slot facilitates the air to pass through the connecting slider, the limiting block and the buffer rubber head, thereby guiding the air to the guide airbag.

[0014] Preferably, the air guide groove extends through and connects the slider, the limiting block, and the buffer rubber head, and one end of the air guide groove is connected to the cavity of the guide airbag, which has a ring-shaped design.

[0015] Using the above technical solution, after the guide airbag is inflated, it will expand in a ring shape, which facilitates the movement of multiple limiting sliding columns.

[0016] Preferably, the limiting slide post and the buffer rubber head form a sliding connection, and the outer surface of the friction block is arc-shaped.

[0017] Using the above technical solution, when the limiting slide is pushed, the limiting slide will slide out of the buffer rubber head, which facilitates the limiting slide to drive the friction block, thereby increasing the friction and thus buffering.

[0018] Compared with the prior art, the beneficial effects of this utility model are: the electric sliding door with a reinforced buffer structure:

[0019] 1. The device is equipped with a limiting groove and a buffer rubber head. When the sliding door panel moves, the limiting groove on the surface of the sliding door panel connects with the buffer rubber head. The rubber material of the buffer rubber head provides cushioning, and at the same time, the buffer rubber head drives the connecting slider to slide to compress the spring, thereby absorbing the impact of the sliding door panel and improving the cushioning effect of the sliding door panel.

[0020] 2. The device is equipped with a sealing piston column and a mounting frame. When the device is working, the buffer rubber head drives the connecting slider to slide for buffering. At the same time, the sealing piston column slides in the groove of the mounting frame, compressing the air in the groove of the mounting frame to increase the pressure, which helps to slow down the sliding speed of the connecting slider, thereby dissipating the impact force and further improving the buffering effect.

[0021] 3. The device is equipped with limiting sliding pins and friction blocks. When the device is working, the movement of the sealed piston column compresses the air. At this time, some air enters the air guide slot, which guides the air to the guide airbag, facilitating the expansion of the guide airbag. After the annular guide airbag expands, it pushes multiple limiting sliding pins on the surface to slide. This allows the limiting sliding pins to drive the friction blocks at one end to slide out of the surface of the buffer rubber head, thereby rubbing against the inner wall of the limiting groove. This increases the contact area and prevents slippage, which helps to increase the rebound speed of the connecting slider and reduces the impact force of the rebound. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the connection between the door frame and the fixed door panel of this utility model;

[0023] Figure 2 This is a three-dimensional structural diagram of the connection between the sliding door panel and the limiting groove of this utility model;

[0024] Figure 3 This is a three-dimensional structural diagram of the connection between the drive motor and the transmission screw of this utility model;

[0025] Figure 4 This is a three-dimensional structural diagram of the connection between the slider and the limiting block of this utility model;

[0026] Figure 5 This is a three-dimensional structural diagram of the connection between the limiting block and the sealing piston column of this utility model;

[0027] Figure 6 This is a three-dimensional structural diagram of the connection between the limiting slide and the friction block of this utility model.

[0028] In the diagram: 1. Install the door frame; 2. Fix the door panel; 3. Drive motor; 4. Transmission screw; 5. Sliding door panel; 6. Limiting groove; 7. Connecting slider; 8. Limiting block; 9. Sealing piston column; 10. Buffer rubber head; 11. Air guide slot; 12. Guide airbag; 13. Limiting slide column; 14. Friction block. Detailed Implementation

[0029] 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.

[0030] Please see Figure 1-6 This utility model provides a technical solution: an electric sliding door with a reinforced buffer structure, including a mounting door frame 1, a fixed door panel 2, a drive motor 3, a transmission screw 4, a sliding door panel 5, a limiting groove 6, a connecting slider 7, a limiting block 8, a sealing piston 9, a buffer rubber head 10, an air guide slot 11, a guide airbag 12, a limiting slide column 13, and a friction block 14. The mounting door frame 1 has a fixed door panel 2 fixedly connected to one of its inner walls. The drive motor 3 is fixedly connected to the inner wall of the opening of the mounting door frame 1. The output end of the drive motor 3 is fixedly connected to the transmission screw 4. The transmission screw 4 is rotatably connected to the inner wall of the mounting door frame 1. The transmission screw 4 is threadedly connected to the sliding door panel 5. When using this device, the fixed door panel 2 and the sliding door panel 5 are offset from each other to facilitate blocking, and the sliding door panel 5 opens to allow passage.

[0031] A sliding door panel 5 is slidably connected to the inner wall of the opening of the mounting door frame 1. A limiting groove 6 is opened on the side surface of the sliding door panel 5 facing the fixed door panel 2. The fixed door panel 2 and the sliding door panel 5 are offset. The limiting groove 6 is correspondingly set with the connecting slider 7. A spring is connected between the sealing piston column 9 and the groove of the mounting door frame 1. The width of the buffer rubber head 10 is smaller than the width of the limiting groove 6. The buffer rubber head 10 is a rubber block. The outer surface of the sealing piston column 9 is in contact with the inner wall of the groove of the mounting door frame 1. During operation, the drive motor 3 drives the transmission screw 4 to rotate. After the transmission screw 4 rotates, it drives the sliding door panel 5 to slide horizontally through the thread. After the sliding door panel 5 moves, the limiting groove 6 on its surface will correspond to the buffer rubber head 10. When the buffer rubber head 10 is impacted, it will be buffered by the rubber material. At the same time, the buffer rubber head 10 will be driven by the sliding door panel 5, so that the buffer rubber head 10 drives the connecting slider 7 to slide, which makes it easy for the sealing piston column 9 to compress the spring to absorb the impact force.

[0032] The inner wall of the mounting frame 1 is provided with a groove, and a connecting slider 7 is slidably installed in the groove of the mounting frame 1. One end of the connecting slider 7 is fixedly connected to a limit block 8, and a sealing piston 9 is fixedly connected to the side surface of the limit block 8. The other end of the connecting slider 7 is fixedly connected to a buffer rubber head 10. The linkage friction mechanism includes an air guide groove 11, which is opened on the surface of the sealing piston 9. The surface of the sealing piston 9 is provided with a groove, and a guide airbag 12 is fixedly connected to the inner wall of the groove of the sealing piston 9. A limit slide 13 is fixedly connected to the outer surface of the guide airbag 12, and a friction block 14 is fixedly connected to the outer surface of the limit slide 13. When the connecting slider 7 slides, it drives the limit block 8 and the sealing piston 9 to move, so that the sealing piston 9 can push the air in the groove of the mounting frame 1. Some of the air enters the air guide groove 11, while the rest of the air is compressed by the sealing piston 9, thereby decelerating the connecting slider 7 through air pressure and reducing the impact force.

[0033] The connecting slider 7 is internally equipped with a linkage friction mechanism, which guides air into the guide airbag 12 through the air guide slot 11. This facilitates the expansion of the guide airbag 12, which pushes the limiting slide column 13 and the friction block 14 to slide out. The air guide slot 11 passes through the connecting slider 7, the limiting block 8, and the buffer rubber head 10. One end of the air guide slot 11 is connected to the cavity of the guide airbag 12. The guide airbag 12 has an annular design. The limiting slide column 13 and the buffer rubber head 10 form a sliding connection. The outer surface of the friction block 14 has an arc-shaped design. Air enters the air guide slot 11 and is guided into the guide airbag 12, causing the annular guide airbag 12 to expand and push multiple limiting slide columns 13 to move. This causes the limiting slide column 13 to drive the friction block 14 at one end to slide out of the surface of the buffer rubber head 10. The friction block 14 abuts against the inner wall of the limiting groove 6, increasing the contact area and improving the friction force, thereby further decelerating the connecting slider 7 and increasing the practicality of the device.

[0034] Working principle: When using this electric sliding door with a reinforced buffer structure, the fixed door panel 2 and sliding door panel 5 in the door frame 1 facilitate the control of the passage. The drive motor 3 drives the transmission screw 4 to rotate, and the transmission screw 4 drives the sliding door panel 5 to slide horizontally. The sliding door panel 5 connects the limiting groove 6 with the buffer rubber head 10, which facilitates the buffering effect of the buffer rubber head 10. At the same time, the buffer rubber head 10 drives the connecting slider 7 to slide, thereby compressing the spring to absorb the impact force. The air is compressed by the sealing piston column 9 on the surface of the limiting block 8 to decelerate and reduce the transmission of impact force. In addition, some air enters the guide airbag 12 from the air guide slot 11. After the guide airbag 12 expands in an annular shape, it pushes the limiting slide column 13 to slide. This allows the limiting slide column 13 to drive the friction block 14 to abut against the limiting groove 6, increasing friction to prevent slippage and reduce rebound, thus increasing the overall practicality.

[0035] 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. An electric sliding door with a reinforced buffer structure, comprising a door frame (1) and a fixed door panel (2) fixedly connected to the inner wall of one side, characterized in that: A drive motor (3) is fixedly connected to the inner wall of the opening of the installation door frame (1). A transmission screw (4) is fixedly connected to the output end of the drive motor (3). A sliding door panel (5) is slidably connected to the inner wall of the opening of the installation door frame (1). A limiting groove (6) is opened on the side surface of the sliding door panel (5) facing the fixed door panel (2). A groove is provided on the inner wall of the installation door frame (1). A connecting slider (7) is slidably installed in the groove of the installation door frame (1). A limiting block (8) is fixedly connected to one end of the connecting slider (7). A sealing piston column (9) is fixedly connected to the side surface of the limiting block (8). A buffer rubber head (10) is fixedly connected to the other end of the connecting slider (7). A linkage friction mechanism is provided inside the connecting slider (7). Air is introduced into the guide airbag (12) through the air guide slot (11) so that it can expand and push the limiting slide column (13) and the friction block (14) to slide out.

2. The electric sliding door with a reinforced buffer structure according to claim 1, characterized in that: The transmission screw (4) is rotatably connected to the inner wall of the mounting frame (1), and the transmission screw (4) is threadedly connected to the sliding door panel (5).

3. The electric sliding door with a reinforced buffer structure according to claim 1, characterized in that: The fixed door panel (2) and the sliding door panel (5) are offset, the limiting groove (6) and the connecting slider (7) are correspondingly arranged, and a spring is connected between the sealing piston column (9) and the groove of the mounting door frame (1).

4. An electric sliding door with a reinforced buffer structure according to claim 1, characterized in that: The width of the buffer rubber head (10) is smaller than the width of the limiting groove (6). The buffer rubber head (10) is a block made of rubber. The outer surface of the sealing piston column (9) is in contact with the inner wall of the groove of the mounting door frame (1).

5. An electric sliding door with a reinforced buffer structure according to claim 1, characterized in that: The linkage friction mechanism includes an air guide groove (11), which is opened on the surface of the sealing piston column (9). The surface of the sealing piston column (9) is provided with a groove. A guide air bag (12) is fixedly connected to the inner wall of the groove of the sealing piston column (9). A limiting slide column (13) is fixedly connected to the outer surface of the guide air bag (12). A friction block (14) is fixedly connected to the outer surface of the limiting slide column (13).

6. An electric sliding door with a reinforced buffer structure according to claim 5, characterized in that: The air guide slot (11) passes through and connects the slider (7), the limiting block (8) and the buffer rubber head (10). One end of the air guide slot (11) is connected to the cavity of the guide airbag (12). The guide airbag (12) is a ring design.

7. An electric sliding door with a reinforced buffer structure according to claim 5, characterized in that: The limiting slide (13) and the buffer rubber head (10) form a sliding connection, and the outer surface of the friction block (14) is arc-shaped.