Car-pressing-preventing sliding door at entrance and exit of stereo garage
By introducing anti-pinch and anti-fall mechanisms into the sliding doors of the automated parking garage, and utilizing pressure sensors and motor control, the problem of the sliding doors' inability to accurately sense vehicle positions has been solved. This has enabled safe and reliable vehicle passage and door stability, reduced the risk of accidents, and improved the safety and operational efficiency of the parking garage.
Patent Information
- Application Number
- CN202423298793.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2034-12-31
AI Technical Summary
Existing automated parking garage sliding doors cannot accurately sense the real-time position and status of vehicles, making them prone to falling before vehicles have fully passed through. Furthermore, they lack effective anti-fall monitoring and early warning mechanisms, leading to frequent accidents involving vehicles being crushed, which affects garage operation and user safety.
The system employs an anti-pinch mechanism and an anti-fall mechanism, using pressure sensors and motors to control the descent of the sliding door. Combined with the design of locking blocks and springs, it ensures that the door stops descending when a vehicle passes by and prevents the door from falling in the event of a power outage or malfunction.
It enables real-time and accurate monitoring of vehicles, avoids collisions between vehicles and gates, reduces the accident rate, improves the safety and operational efficiency of the garage, and ensures the safety of vehicles and personnel.
Smart Images

Figure CN223739245U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sliding door technology, specifically a sliding door for preventing vehicles from being crushed at the entrance and exit of a three-dimensional parking garage. Background Technology
[0002] In the daily operation of automated parking garages, the entrance and exit sliding doors play a crucial role. However, existing sliding doors have some significant problems in use.
[0003] Regarding anti-car-crushing functions, traditional sliding doors mostly rely on simple timed control or manual observation to avoid car-crushing accidents. However, this method is extremely unreliable. Timed control cannot accurately sense the real-time position and status of vehicles, and the door may start to fall before the vehicle has completely passed. Manual observation is not only inefficient but also prone to misjudgment due to human negligence. The sensors on the sliding doors are not sensitive enough to detect the presence of vehicles in time, especially when the vehicles are small or moving slowly, thus increasing the risk of car-crushing accidents. This can not only cause serious damage to the vehicles but also lead to injuries to the people inside, legal disputes, and economic compensation issues. Frequent car-crushing accidents can also affect the reputation of automated parking systems and user trust, reducing their market competitiveness.
[0004] For example, a sliding door with announcement number CN218815995U includes a door frame, a crossbeam mounted on the top of the door frame, and a drive shaft rotatably mounted on the crossbeam. The drive shaft is driven by a door opener mounted on the top of the crossbeam. A door panel pulley and a counterweight pulley are mounted on the drive shaft. A steel wire rope from the door panel is connected to the door panel pulley, and a steel wire rope from the counterweight is connected to the counterweight pulley. The door panel and the counterweight have equal weight, and the steel wire ropes on the counterweight pulley and the door panel pulley have opposite winding directions. In use, the timing control of this sliding door cannot accurately sense the real-time position and status of the vehicle, which can easily lead to… The door begins to descend before the vehicle has completely passed through, but there are other problems as well. For example, in terms of preventing falls, the fixing methods used by traditional sliding doors often have defects. They are prone to failure due to wear, fatigue or external interference during long-term use. There is a lack of effective monitoring and early warning mechanisms, which cannot issue alarms and take emergency measures in time when there are signs of the door falling. The falling door not only poses a huge threat to the vehicles and people below, but may also damage other facilities in the garage, causing the garage to be unable to operate normally for a long time, causing great trouble and economic losses to users and operators. Utility Model Content
[0005] The purpose of this utility model is to provide a sliding door for preventing vehicles from being crushed at the entrance and exit of a multi-level parking garage, so as to solve the problems mentioned in the background art, such as the inability of timed control to accurately sense the real-time position and status of vehicles, the tendency for the door to start falling before the vehicle has completely passed through, and the inability to issue an alarm and take emergency measures in time when there are signs of the door falling.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a sliding door for preventing vehicle crushing at the entrance of a multi-level parking garage, comprising a left door frame and a right door frame located at the right end of the left door frame; the inner sides of the left and right door frames are provided with sliding grooves, and a sliding door body is provided between the left and right door frames, with a pulley rotatably mounted on the right end of the sliding door body, and two pulleys are evenly distributed around the sliding door body as the center of symmetry, and the pulleys are installed inside the sliding grooves; a vehicle crushing mechanism is provided on the left door frame, and a motor is fixed above the rear end of the left door frame, with an actuating strip fixedly installed on the output end of the motor, and two actuating strips are evenly distributed around the sliding door body as the center of symmetry; a protective shell is fixedly installed on the inner sides of the left and right door frames, and a locking block is installed inside the left end of the protective shell, with the left end of the locking block extending to the outside of the protective shell and locking into the sliding door body; an anti-fall mechanism is provided on the left door frame, and a first locking groove is provided on the inner side of the protective shell.
[0007] Furthermore, the anti-pinch mechanism includes a second slot opened at the rear end of the sliding door body, and two second slots are evenly distributed with the sliding door body as the center of symmetry. The second slots cooperate with the toggle bar.
[0008] Furthermore, a pressing plate is installed at the lower end of the left and right door frames, and a first spring is located at the right end of the pressing plate. Two first springs are evenly distributed with the sliding door body as the center of symmetry.
[0009] Furthermore, a pressure sensor is installed in the middle of the lower end of the pressing plate, and the pressure sensor is connected to the motor.
[0010] Furthermore, the fall protection mechanism includes a locking post installed at the right end of the locking block, and the locking post is "T"-shaped, with the front end of the locking post extending to the outside of the protective shell.
[0011] Furthermore, the locking pin extends through the first locking slot, and a baffle is installed at the right end of the locking pin.
[0012] Furthermore, a second spring is installed on the right end of the baffle, and the right end of the second spring is installed inside the protective housing on the right side.
[0013] Compared with the prior art, the beneficial effect of this utility model is: the sliding door of the entrance and exit of the three-dimensional parking garage is designed to prevent crushing vehicles;
[0014] 1. When a vehicle passes through the garage entrance, and the vehicle presses against the pressure plate, the pressure plate compresses the first spring, buffering part of the pressure. The pressure plate then touches the pressure sensor, which detects the pressure change and sends a signal to the control system. The control system then stops the motor, stops the toggle bar from driving the sliding door body, and the door stops descending, preventing the door from pressing on the vehicle during descent and ensuring the safety of the vehicle and surrounding facilities.
[0015] Furthermore, it enables real-time and precise monitoring of vehicles beneath the door, quickly detecting even the slightest pressure changes to ensure the door never accidentally crushes a vehicle under any circumstances. This not only effectively prevents physical damage to the vehicle but, more importantly, provides life safety for the occupants, allowing for worry-free entry and exit from the garage every time.
[0016] Furthermore, it reduces the likelihood of door damage caused by collisions between vehicles and the door, which means fewer repairs, lower maintenance costs, and a longer door lifespan. It accurately detects the presence of vehicles, ensuring that the door will not cause any crushing of the vehicle, providing safety protection for the vehicle and its occupants, completely eliminating the panic and losses caused by vehicle crushing accidents, and reducing door damage caused by collisions between the door and the vehicle.
[0017] 2. In case of power failure or motor malfunction, the sliding door body may fall. When the sliding door body falls rapidly, the left end of the protective shell will hold the sliding door body in place to prevent it from falling. The second spring will push the baffle, which will push the locking pin to press against the locking block, limiting its movement. To lower the sliding door body, first pull the locking pin to the right, allowing it to engage with the first locking groove on the protective shell, thus locking the locking pin at the right end of the first locking groove and releasing the restriction on the sliding door body.
[0018] Furthermore, it eliminates the possibility of the door suddenly falling, ensuring that the door is securely suspended and guaranteeing unobstructed access to the garage entrance and exit. This ensures normal vehicle entry and exit under all circumstances, improves garage utilization efficiency, reduces operational interruptions caused by door malfunctions, and provides users with a more stable and convenient parking experience, enhancing the competitiveness and attractiveness of multi-level parking garages in the market. Attached Figure Description
[0019] Figure 1 This is a front-view three-dimensional structural schematic diagram of the present invention;
[0020] Figure 2 This is a three-dimensional structural diagram of the sliding door body of this utility model;
[0021] Figure 3 This is a three-dimensional structural diagram of the pulley of this utility model;
[0022] Figure 4This is a three-dimensional structural diagram of the actuating bar of this utility model;
[0023] Figure 5 This utility model is Figure 2 Enlarged 3D structural diagram at point A in the middle;
[0024] Figure 6 This is a schematic diagram of the three-dimensional structure of the protective shell of this utility model.
[0025] In the diagram: 1. Left door frame; 2. Right door frame; 3. Slide track; 4. Sliding door body; 5. Pulley; 6. Motor; 7. Actuating bar; 8. Protective housing; 9. Locking block; 10. First locking slot; 11. Second locking slot; 12. Pressing plate; 13. First spring; 14. Pressure sensor; 15. Locking post; 16. Baffle; 17. Second spring. Detailed Implementation
[0026] 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.
[0027] Example 1: Please refer to Figures 1-6This utility model provides the following technical solution: a sliding door for preventing vehicles from being crushed at the entrance of a multi-level parking garage, including a left door frame 1 and a right door frame 2 located at the right end of the left door frame 1; a sliding groove 3 is provided on the inner side of the left door frame 1 and the right door frame 2; a sliding door body 4 is provided between the left door frame 1 and the right door frame 2; a pulley 5 is rotatably installed on the right end of the sliding door body 4; two pulleys 5 are evenly distributed around the sliding door body 4 as the center of symmetry; and the pulleys 5 are installed inside the sliding groove 3; a vehicle crush prevention mechanism is provided on the left door frame 1. A motor 6 is fixed above the rear end of the left door frame 1, and an actuating strip 7 is fixedly installed at the output end of the motor 6. Two actuating strips 7 are evenly distributed around the sliding door body 4 as the center of symmetry. A protective shell 8 is fixedly installed inside the left door frame 1 and the right door frame 2. A locking block 9 is installed inside the left end of the protective shell 8, and the left end of the locking block 9 extends to the outside of the protective shell 8 and is locked inside the sliding door body 4. An anti-fall mechanism is provided on the left door frame 1, and a first slot 10 is opened inside the protective shell 8. The anti-pinch mechanism includes a second slot 11 opened at the rear end of the sliding door body 4, and two second slots 11 are evenly distributed around the sliding door body 4 as the center of symmetry. The second slot 11 cooperates with the actuating strip 7. A pressing plate 12 is installed at the lower end of the left door frame 1 and the right door frame 2, and a first spring 13 is located at the right end of the pressing plate 12. Two first springs 13 are evenly distributed around the sliding door body 4 as the center of symmetry. A pressure sensor 14 is installed in the middle of the lower end of the pressing plate 12, and the pressure sensor 14 is connected to the motor 6.
[0028] The output of motor 6 drives the actuating bar 7 to rotate. The actuating bar 7 engages with the second slot 11 of the sliding door body 4, applying a downward force to the sliding door body 4. Simultaneously, the pulleys 5 on both sides of the sliding door body 4 and the sliding grooves 3 of the left door frame 1 and right door frame 2 engage, causing the sliding door body 4 to descend along the sliding grooves 3 driven by the actuating bar 7. When a vehicle passes through the garage entrance, and the vehicle presses against the pressing plate 12, the pressing plate 12 compresses the first spring 13, buffering part of the pressure. The pressing plate 12 then touches the pressure sensor 14, which senses the pressure change and transmits a signal to the control system. The control system then stops motor 6, stops the actuating bar 7 from driving the sliding door body 4, and stops the door from descending, preventing the door from pressing on the vehicle during descent and ensuring the safety of the vehicle and surrounding facilities.
[0029] The fall arrestor includes a locking post 15 mounted on the right end of the locking block 9. The locking post 15 is T-shaped, and its front end extends to the outside of the protective housing 8. The locking post 15 passes through the first locking groove 10, and a baffle 16 is mounted on the right end of the locking post 15. A second spring 17 is mounted on the right end of the baffle 16, and the right end of the second spring 17 is mounted inside the right end of the protective housing 8.
[0030] When the sliding door body 4 rises, it pushes the locking block 9 inward into the protective housing 8, without affecting the upward movement of the sliding door body 4. However, in the event of a power outage or motor 6 malfunction, the sliding door body 4 may fall. When the sliding door body 4 falls rapidly, the locking block 9 at the left end of the protective housing 8 locks it in place, preventing it from falling. Simultaneously, the second spring 17 pushes the baffle 16, which in turn pushes the locking pin 15 to press against the locking block 9, limiting its movement. To lower the sliding door body 4, first pull the locking pin 15 to the right, causing the locking block 9 to move inward. The locking block 9 presses against the baffle 16, compressing the second spring 17, allowing the locking pin 15 to engage with the first slot 10 of the protective housing 8, thus locking the locking pin 15 at the right end of the first slot 10 and releasing the restriction on the sliding door body 4.
[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0032] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A stereo garage entrance anti-vehicle pressing sliding door, comprising a left door frame (1) and a right door frame (2) arranged at the right end of the left door frame (1). characterized in that A sliding groove (3) is formed in the inner side of the left door frame (1) and the right door frame (2), a sliding door body (4) is arranged in the middle of the left door frame (1) and the right door frame (2), a pulley (5) is rotatably installed at the right end of the sliding door body (4), and the pulley (5) is uniformly distributed on both sides of the sliding door body (4) as the center of symmetry, and the pulley (5) is installed inside the sliding groove (3), an anti-vehicle pressing mechanism is arranged on the left door frame (1), a motor (6) is fixedly arranged on the upper end of the rear end of the left door frame (1), a driving bar (7) is fixedly installed on the output end of the motor (6), and the driving bar (7) is uniformly distributed on both sides of the sliding door body (4) as the center of symmetry. A protective shell (8) is fixedly installed on the inner side of the left door frame (1) and the right door frame (2), a clamping block (9) is installed in the inner side of the left end of the protective shell (8), the clamping block (9) extends to the outer side of the protective shell (8), and the clamping block (9) is in the sliding door body (4), an anti-falling mechanism is arranged on the left door frame (1), and a first clamping groove (10) is formed in the inner side of the protective shell (8).
2. The anti-crushing door of the stereo garage entrance according to claim 1, characterized in that: The anti-vehicle pressing mechanism comprises a second clamping groove (11) formed in the rear end of the sliding door body (4), the second clamping groove (11) is uniformly distributed on both sides of the sliding door body (4) as the center of symmetry, and the second clamping groove (11) cooperates with the driving bar (7).
3. The anti-crushing door of claim 2, wherein: A pressing plate (12) is installed at the lower end of the left door frame (1) and the right door frame (2), a first spring (13) is arranged at the right end of the pressing plate (12), and the first spring (13) is uniformly distributed on both sides of the sliding door body (4) as the center of symmetry.
4. The anti-crushing door of the stereo garage entrance according to claim 3, characterized in that: A pressure sensor (14) is installed at the lower end of the pressing plate (12), and the pressure sensor (14) is connected with the motor (6).
5. The anti-crushing door of the stereo garage entrance according to claim 1, characterized in that: The anti-falling mechanism comprises a clamping column (15) installed at the right end of the clamping block (9), the clamping column (15) is "T" shaped, and the clamping column (15) extends to the outer side of the protective shell (8) at the front end.
6. The anti-crushing door of claim 5, wherein: The clamping column (15) penetrates the first clamping groove (10), and a baffle (16) is installed at the right end of the clamping column (15).
7. The anti-crushing door of claim 6, wherein: A second spring (17) is installed at the right end of the baffle (16), and the second spring (17) is installed at the inner right end of the protective shell (8).
Citation Information
Patent Citations
sliding door
CN218815995U