Self-locking telescopic transmission mechanism of double-track shielding door
By introducing a double-track self-locking telescopic transmission mechanism into the track shield door, the shaking problem of the shield door caused by single-track guidance is solved, higher stability and safety are achieved, and it is ensured that it can be opened quickly in an emergency.
Patent Information
- Application Number
- CN202422739868.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-11
- Publication Date
- 2025-09-19
- Estimated Expiration
- 2034-11-11
AI Technical Summary
The sliding door of the existing track shield door has only one set of guide rails to guide the lateral movement, which makes the door body easy to shake. After repeated shaking, the transmission mechanism is easily damaged, resulting in problems such as opening and closing jitter and abnormal noise.
A double-track shield door self-locking telescopic transmission mechanism is adopted, including lower and upper guide rails in the fixed door body, sliding lower and upper slide seats, and stable movement is achieved through synchronous belts and follower wheels. A normally closed electromagnetic lock is installed in the fixed door body to ensure that it can be opened quickly in an emergency.
The lateral stability and installation strength of the shield door are improved to prevent deviation, ensuring safe use in any situation and the door can still be locked when there is no power.
Smart Images
Figure CN223358943U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of shielding doors, and more specifically relates to a self-locking telescopic transmission mechanism for a double-track shielding door. Background Art
[0002] Track-mounted screen doors (TPDs) are glass doors installed at the edge of subway platforms. They primarily come in two types: full-height and half-height. Full-height TPDs are typically used on underground platforms and are typically over 2 meters tall, completely separating the platform from the track. Half-height TPDs, with a height of approximately 1.2 to 1.5 meters, are commonly found on ground or elevated platforms.
[0003] The sliding doors of existing track screen doors usually have two sets of guide rails. One set of guide rails is used to bear the weight of the door body, allowing the door body to slide smoothly along the guide rails and ensure the door's vertical stability. The other set of guide rails is mainly used to guide the door body's lateral movement, ensuring that the door moves in the correct direction during opening and closing, accurately positioning and aligning the door body, and preventing the door body from offsetting or shaking. Since only one set of guide rails is provided to guide the door body's lateral movement, the door body is prone to shaking due to external forces during use. After repeated shaking, its internal transmission mechanism is easily damaged, and the door body is prone to shaking and abnormal noise when opening and closing. Therefore, in view of this, the existing structure and deficiencies are studied and improved, and a double-track screen door self-locking telescopic transmission mechanism is provided to achieve a more practical purpose. Utility Model Content
[0004] In order to solve the above technical problems, the present invention provides a self-locking telescopic transmission mechanism for a double-track screen door, which is achieved by the following specific technical means:
[0005] The self-locking telescopic transmission mechanism of the double-track shielding door includes a transmission mechanism installed on the fixed door body, the transmission mechanism is connected to the shielding door, the transmission mechanism includes a lower guide rail and an upper guide rail horizontally fixedly installed inside the fixed door body, a lower slide seat and an upper slide seat are respectively slidably installed on one side of the lower guide rail and the upper guide rail, and a fixed beam one and a fixed beam two are respectively horizontally fixedly installed on one side of the lower slide seat and the upper slide seat; a vertical beam is vertically connected between the fixed beam one and the fixed beam two, the bottom end of the vertical beam passes through the bottom side of the fixed beam one, and is horizontally connected to the fixed beam three; one end of the fixed beam three is connected to a lock plate, and the inner bottom end of the fixed door body is installed with an electromagnetic lock that can be locked with the lock plate.
[0006] Furthermore, a base is fixedly installed on the inner bottom end of the fixed door body on the side close to the shield door entrance and exit, and a bearing is installed on the top of the base through a rotating shaft, and the bearing is rollingly connected to the bottom side of the fixed beam three.
[0007] Furthermore, one end of the fixed crossbeam 1, the fixed crossbeam 2 and the fixed crossbeam 3 are all fixedly inserted into the interior of the shielding door, and the fixed crossbeam 3 is fixedly embedded in the bottom side of the shielding door.
[0008] Furthermore, a driving motor is fixedly installed on one side of the interior of the fixed door body, and a synchronous wheel 1 is fixedly installed on the output shaft of the driving motor; a synchronous wheel 2 is installed on the other side of the interior of the fixed door body through a bracket, a synchronous belt is installed between the synchronous wheel 2 and the synchronous wheel 1, and the synchronous belt is horizontally arranged.
[0009] Furthermore, one side of the synchronous belt is connected to a connecting seat via a fastener, and one side of the connecting seat is fixedly connected to one side of the vertical beam.
[0010] Furthermore, two sets of fixing frames are installed at the upper and lower ends near the entrance and exit of the shielding door, and the two sets of fixing frames are respectively located on the front and rear sides of the shielding door; both ends of the fixing frames are equipped with follower wheels, and the follower wheels are rollingly connected to the sides of the shielding door.
[0011] Compared with the prior art, the present invention has the following beneficial effects:
[0012] The utility model can effectively improve the stability of the shielding door during lateral movement by arranging double horizontal guide rails inside the fixed door body. At the same time, the installation of the follower wheel and the bearing can realize effective position limiting of the shielding door, improve the installation strength of the shielding door, and effectively prevent the shielding door from shifting up and down and front and back, thereby ensuring that the shielding door has high stability. At the same time, a normally closed electromagnetic lock is installed inside the fixed door body, which can cooperate with the lock plate on the third fixed crossbeam, so that it can be quickly opened in an emergency of the equipment, and can also be locked in the absence of electricity, thereby ensuring safe use in any situation. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model.
[0014] Figure 2 This is a schematic diagram of the local structure of the utility model Figure 1 .
[0015] Figure 3 This is a schematic diagram of the local structure of the utility model Figure 2 .
[0016] Figure 4 This is a schematic diagram of the local structure of the utility model Figure 3 .
[0017] Figure 5 yes Figure 3 Enlarged schematic diagram of part A in the middle.
[0018] Figure 6 yes Figure 3 Enlarged schematic diagram of part B in the middle.
[0019] Figure 7 yes Figure 4 Enlarged schematic diagram of part C in the middle.
[0020] In the figure, the corresponding relationship between component names and drawing numbers is as follows:
[0021] 1. Fixed door body; 2. Shield door; 3. Transmission mechanism;
[0022] 301. Lower guide rail; 302. Upper guide rail; 303. Drive motor; 304. Synchronous belt; 305. Lower slide; 306. Fixed beam one; 307. Vertical beam; 308. Fixed beam two; 309. Upper slide; 3010. Base; 3011. Fixed bracket; 3012. Follower wheel; 3013. Lock plate; 3014. Electromagnetic lock; 3015. Fixed beam three; 3016. Bearing; 3017. Connecting seat. DETAILED DESCRIPTION
[0023] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.
[0024] In the description of this utility model, unless otherwise specified, "plurality" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed, or operate in a specific direction, and therefore should not be construed as limiting this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0025] In the description of this utility model, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances. Example
[0026] As attached Figure 1 To the attached Figure 7 As shown:
[0027] The utility model provides a double-track shield door self-locking telescopic transmission mechanism, including a transmission mechanism 3 installed on a fixed door body 1, the transmission mechanism 3 is connected to the shield door 2, the transmission mechanism 3 includes a lower guide rail 301 and an upper guide rail 302 fixedly installed horizontally inside the fixed door body 1, a lower slide 305 and an upper slide 309 are respectively slidably installed on one side of the lower guide rail 301 and the upper guide rail 302, and a fixed beam 1 306 and a fixed beam 2 308 are respectively fixedly installed on one side of the lower slide 305 and the upper slide 309; the fixed door body 1 is fixed to the lower guide rail 301 and the upper guide rail 302. A vertical beam 307 is vertically connected between fixed beam 1 306 and fixed beam 2 308. The bottom end of the vertical beam 307 passes through the bottom side of fixed beam 1 306 and is horizontally connected to fixed beam 3 3015. One end of fixed beam 3015 is connected to a lock plate 3013. An electromagnetic lock 3014 that can be locked with the lock plate 3013 is installed at the inner bottom end of the fixed door body 1. The electromagnetic lock 3014 is normally closed. When the power is off, its lock tongue pops out and cooperates with the lock plate 3013 to lock the shielding door 2 to ensure safe use.
[0028] Among them, the inner bottom end of the fixed door body 1 is fixedly installed with a base 3010 on the side close to the entrance and exit of the shielding door 2, and the top of the base 3010 is installed with a bearing 3016 through a rotating shaft. The bearing 3016 is rollingly connected to the bottom side of the fixed crossbeam three 3015 to achieve effective support for the bottom of the shielding door 2, prevent it from shifting up and down, and reduce the friction between the shielding door 2 and the fixed door body 1, which is conducive to long-term stable operation.
[0029] Among them, one end of the fixed beam 1 306 , the fixed beam 2 308 and the fixed beam 3 3015 are all fixedly inserted into the interior of the shielding door 2 , and the fixed beam 3 3015 is fixedly embedded in the bottom side of the shielding door 2 .
[0030] Among them, a driving motor 303 is fixedly installed on one side of the interior of the fixed door body 1, and a synchronous wheel 1 is fixedly installed on the output shaft of the driving motor 303; a synchronous wheel 2 is installed on the other side of the interior of the fixed door body 1 through a bracket, and a synchronous belt 304 is installed between the synchronous wheel 2 and the synchronous wheel 1, and the synchronous belt 304 is arranged horizontally.
[0031] Among them, one side of the synchronous belt 304 is connected to the connecting seat 3017 through a fastener, and one side of the connecting seat 3017 is fixedly connected to one side of the vertical beam 307, so that under the cooperation of the driving motor 303 and the synchronous belt 304, the shielding door 2 is driven by the connecting seat 3017 and the vertical beam 307 to perform rapid opening and closing operations.
[0032] Among them, two sets of fixing frames 3011 are installed at the upper and lower ends near the entrance and exit of the shielding door 2, and the two sets of fixing frames 3011 are respectively located on the front and rear sides of the shielding door 2; both ends of the fixing frames 3011 are installed with follower wheels 3012, and the follower wheels 3012 are rollingly connected to the side of the shielding door 2. Through the setting of the follower wheels 3012, the shielding door 2 can be limited front and rear to prevent it from deflecting, which is conducive to its efficient and stable operation.
[0033] The working principle of this embodiment is as follows: by arranging double horizontal guide rails inside the fixed door body 1, the stability of the shielding door 2 during lateral movement can be effectively improved. At the same time, by installing the follower wheel 3012 and the bearing 3016, the shielding door 2 can be effectively limited, the installation strength of the shielding door 2 can be improved, and the shielding door 2 can be effectively prevented from shifting up and down and forward and backward, thereby ensuring that the shielding door 2 has high stability; at the same time, a normally closed electromagnetic lock 3014 is installed inside the fixed door body 1, which can be matched with the lock plate 3013 on the fixed crossbeam 3015, so that it can be quickly opened in an emergency situation of the equipment, and can also be locked in the absence of electricity, ensuring that it can be used safely in any situation.
[0034] The embodiments of the present invention are provided for purposes of illustration and description and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for specific applications.
Claims
1. A self-locking telescopic transmission mechanism for a double-track platform screen door, comprising a transmission mechanism (3) mounted on a fixed door body (1), wherein the transmission mechanism (3) is connected to the platform screen door (2), and is characterized in that: The transmission mechanism (3) comprises a lower guide rail (301) and an upper guide rail (302) which are fixedly installed horizontally inside the fixed door body (1); a lower slide seat (305) and an upper slide seat (309) are slidably installed on one side of the lower guide rail (301) and the upper guide rail (302); a fixed beam 1 (306) and a fixed beam 2 (308) are fixedly installed horizontally on one side of the lower slide seat (305) and the upper slide seat (309); A vertical beam (307) is vertically connected between the fixed crossbeam 1 (306) and the fixed crossbeam 2 (308), the bottom end of the vertical beam (307) passes through the bottom side of the fixed crossbeam 1 (306) and is horizontally connected to the fixed crossbeam 3 (3015); one end of the fixed crossbeam 3 (3015) is connected to a lock plate (3013), and the inner bottom end of the fixed door body (1) is installed with an electromagnetic lock (3014) that can be locked with the lock plate (3013).
2. The self-locking telescopic transmission mechanism for a double-track platform screen door according to claim 1, characterized in that: A base (3010) is fixedly mounted on the inner bottom end of the fixed door body (1) on a side close to the entrance and exit of the shielding door (2), and a bearing (3016) is mounted on the top of the base (3010) via a rotating shaft, and the bearing (3016) is rollingly connected to the bottom side of the fixed crossbeam (3015).
3. The self-locking telescopic transmission mechanism for a double-track platform screen door according to claim 1, characterized in that: One end of the fixed crossbeam 1 (306), the fixed crossbeam 2 (308) and the fixed crossbeam 3 (3015) are all fixedly inserted into the interior of the shielding door (2), and the fixed crossbeam 3 (3015) is fixedly embedded in the bottom side of the shielding door (2).
4. The self-locking telescopic transmission mechanism for a double-track platform screen door according to claim 1, characterized in that: A driving motor (303) is fixedly mounted on one side of the interior of the fixed door body (1), and a synchronous wheel 1 is fixedly mounted on the output shaft of the driving motor (303); a synchronous wheel 2 is mounted on the other side of the interior of the fixed door body (1) via a bracket, a synchronous belt (304) is mounted between the synchronous wheel 2 and the synchronous wheel 1, and the synchronous belt (304) is arranged horizontally.
5. The self-locking telescopic transmission mechanism for a double-track platform screen door according to claim 4, characterized in that: One side of the synchronous belt (304) is connected to a connecting seat (3017) via a fastener, and one side of the connecting seat (3017) is fixedly connected to one side of the vertical beam (307).
6. The self-locking telescopic transmission mechanism for a double-track platform screen door according to claim 1, characterized in that: Two sets of fixing frames (3011) are installed at the upper and lower ends fixed near the entrance and exit of the shielding door (2), and the two sets of fixing frames (3011) are respectively located on the front and rear sides of the shielding door (2); and follower wheels (3012) are installed at both ends of the fixing frames (3011), and the follower wheels (3012) are connected to the side of the shielding door (2) in a rolling manner.