A new rail transit shielding door anti-pinch device

Abstract

The utility model relates to rail transit shield door technical field discloses a new rail transit shield door anti -pinch device, including rail transit shield door main part, shield door main part includes hollow door body, the fixedly connected with baffle in hollow door body, one side swing joint has telescopic cover in hollow door body, fixedly connected with two slide rods on one side inner wall of telescopic cover, one end fixedly connected with the baffle block of slide rod, the vertical board of slide rod is connected with the sliding, fixedly connected with pull rod on the vertical board, pull rod and one side wall of hollow door body are connected with the sliding, the one end fixedly connected with the pull plate of pull rod extension to the inside of hollow door body, a plurality of tension springs are connected with the baffle and the pull plate, the upper and lower ends fixedly connected with the inclined lock block of pull plate, the upper and lower sides of pull plate are provided with the rotary installation in the lock hook, the both sides of the shaft of lock hook all have the torsional spring of providing the lock hook with the force of turning down, the upper portion of lock hook is connected with the push plate through the connecting plate, the upper and lower inner walls of telescopic cover all are fixedly connected with the push strip.

Description

Technical Field

[0001] This utility model belongs to the technical field of rail transit platform screen doors, specifically a new type of anti-pinch device for rail transit platform screen doors. Background Technology

[0002] A subway is a high-speed, high-capacity, electrically powered rail transit system built in cities. Trains run on fully enclosed tracks. Lines in central urban areas are primarily located in underground tunnels, while lines outside central urban areas are generally located on elevated bridges or at ground level. Inside subway stations, platform screen doors are installed at the platforms to separate the platform from the tracks. Existing platform screen doors employ specialized anti-pinch structures to prevent pinching, such as the subway platform screen door anti-pinch device disclosed in announcement number CN220203690U.

[0003] In actual use, the applicant found that the existing anti-pinch devices for subway platform screen doors mainly use spring retraction buffers to reduce harm to people or objects. However, in actual use, after clamping, the spring's squeezing force will continue to exert a reaction force on the object or person, and the object or person may still be injured. Moreover, after clamping, the object or person can only be freed by actively pulling it away or opening the platform screen door. The process of pulling it away is prone to secondary injury, and opening the platform screen door takes time, which greatly delays rescue time.

[0004] Based on the above actual situation, in order to solve the problems of simple spring buffering and damage reduction and inconvenience in timely release from the clamping point, a new type of anti-pinch device for rail transit platform screen doors is provided. Utility Model Content

[0005] The purpose of this utility model is to provide a new type of anti-pinch device for rail transit platform screen doors in order to solve the problems mentioned above.

[0006] The technical solution adopted by this utility model is as follows: A novel anti-pinch device for rail transit platform screen doors includes a main body of a rail transit platform screen door. The main body of the platform screen door includes a hollow door body. A partition is fixedly connected inside the hollow door body. A telescopic cover is movably connected to one side of the hollow door body. Two sliding rods are fixedly connected to the inner wall of one side of the telescopic cover. A stop block is fixedly connected to one end of each sliding rod. A vertical plate is slidably connected to the sliding rod. A pull rod is fixedly connected to the vertical plate. The pull rod is slidably connected to one side wall of the hollow door body. The pull rod extends to the inner wall of the hollow door body. A pull plate is fixedly connected to one end of the hollow door body. Multiple tension springs are hooked between the pull plate and the partition. An inclined locking block is fixedly connected to the upper and lower ends of the pull plate. Locking hooks are rotatably mounted on the upper and lower sides of the pull plate. The locking hooks are locked to the inclined locking blocks. Torsion springs that provide downward rotation force to the locking hooks are sleeved on both sides of the shaft of the locking hooks. Two connecting plates are rotatably connected to the upper part of the locking hooks. A push plate is rotatably connected to the upper end of the connecting plates. The push plate is rotatably mounted on the hollow door body. Push bars are fixedly connected to the upper and lower inner walls of the telescopic cover.

[0007] In a preferred embodiment, an upper limit rod is fixedly installed on one side of the push plate in the hollow door body.

[0008] In a preferred embodiment, guide holes are provided on both the upper and lower surfaces of the hollow door body, the push bar is disposed in the guide holes, and the push bar can slide along the guide holes.

[0009] In a preferred embodiment, buffers are fixedly connected to the upper and lower sides of the partition.

[0010] In a preferred embodiment, one end of the push bar is provided with a first inclined surface, and the upper end of the push plate is provided with a second inclined surface adapted to the first inclined surface.

[0011] In a preferred embodiment, a rubber pad is fixedly installed at the clamping surface of the telescopic cover.

[0012] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are: 1. In this utility model, the compression of the telescopic cover causes the locking hook to disengage from the inclined locking block, thereby allowing the tension spring to instantly retract the telescopic cover, thus actively freeing the items and personnel from the clamping state. This further reduces the damage to items or people caused by clamping, improves the anti-pinch effect, and adopts a purely mechanical retraction structure. The device has low cost, fast response, and higher safety, making it worthy of promotion. Attached Figure Description

[0013] Figure 1 This is a simplified schematic diagram of the three-dimensional structure of this utility model; Figure 2This is a simplified schematic diagram of the internal structure of this utility model from the front view; Figure 3 In this utility model Figure 2 Enlarged view of point A; Figure 4 This is a simplified schematic diagram of the structure of the locking hook when it is fully open in this utility model; Figure 5 This is a simplified three-dimensional structural diagram of the locking hook linkage structure in this utility model.

[0014] Markings in the diagram: 1-Main body of the shielding door; 2-Hollow door body; 3-Partition; 4-Telescopic cover; 5-Slide rod; 6-Stop block; 7-Vertical plate; 8-Pull rod; 9-Pull plate; 10-Tension spring; 11-Angled locking block; 12-Locking hook; 13-Torsion spring; 14-Connecting plate; 15-Push plate; 16-Push bar; 17-Limiting rod; 18-Guide hole; 19-Buffer; 20-Angled surface one; 21-Angled surface two; 22-Rubber pad. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below in conjunction with the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0016] The following will combine Figures 1-5 This invention provides a detailed description of a novel anti-pinch device for rail transit platform screen doors according to an embodiment of the present invention.

[0017] Example: This utility model provides a novel anti-pinch device for rail transit platform screen doors, referencing... Figures 1 to 5As shown, the system includes a platform screen door body 1 for rail transit. The platform screen door body 1 includes a hollow door body 2. A partition 3 is fixedly connected inside the hollow door body 2. A telescopic cover 4 is movably connected to one side of the hollow door body 2. Two sliding rods 5 are fixedly connected to the inner wall of one side of the telescopic cover 4. A stop block 6 is fixedly connected to one end of the sliding rod 5. A vertical plate 7 is slidably connected to the sliding rod 5. A pull rod 8 is fixedly connected to the vertical plate 7. The pull rod 8 is slidably connected to one side wall of the hollow door body 2. A pull plate 9 is fixedly connected to one end of the pull rod 8 that extends into the hollow door body 2. Multiple tension springs 10 are hooked between the pull plate 9 and the partition 3. An inclined locking block 11 is fixedly connected to the upper and lower ends of the pull plate 9. Rotary locking blocks are provided on the upper and lower sides of the pull plate 9. A locking hook 12 is movably installed on the hollow door body 2. The locking hook 12 is locked to the inclined locking block 11. Both sides of the shaft of the locking hook 12 are fitted with torsion springs 13 that provide downward rotation force to the locking hook 12. The upper part of the locking hook 12 is rotatably connected to two connecting plates 14. The upper end of the connecting plate 14 is rotatably connected to a push plate 15. A limiting rod 17 is fixedly installed on the hollow door body 2 on one side of the push plate 15. The push plate 15 is rotatably installed on the hollow door body 2. Push bars 16 are fixedly connected to the upper and lower inner walls of the telescopic cover 4. One end of the push bar 16 is constructed with an inclined surface 20. The upper end of the push plate 15 is constructed with an inclined surface 21 that is adapted to the inclined surface 20. The above structure constitutes the anti-pinch device of the rail transit platform screen door. When the shielding door body 1 accidentally traps an item or person, the telescopic cover 4 on the shielding door body 1 first contacts and is squeezed outward. At this time, the push bar 16 on the telescopic cover 4 pushes the push plate 15 to rotate until the push plate 15 is pushed to the limit rod 17. At this time, the inclined surface 21 of the push plate 15 is parallel to the bottom of the push bar 16. The push plate 15 drives the locking hook 12 to rotate against the torque of the torsion spring 10 through the connecting plate 14, thereby disengaging the locking hook 12 from the inclined locking block 11. At this time, the pull plate 9 is released from restraint, and the tension of the tension spring 10 is released, thereby rapidly pulling the pull plate 9 to move. The pull plate 9 drives the vertical plate 7 to move through the pull rod 8. At this time, the vertical plate 7 pulls the stop block 9, thereby causing the telescopic cover 4 on the slide rod 5 to retract rapidly, thus actively freeing the item or person from the clamping state. This can further reduce the damage to the item or person caused by clamping, improve the anti-pinch effect, and adopt a purely mechanical retraction structure. The device has low cost, fast response, and higher safety, making it worthy of promotion.

[0018] refer to Figures 1 to 5 As shown, guide holes 18 are provided on both the upper and lower sides of the hollow door body 2. Push bars 16 are set in the guide holes 18 and can slide along the guide holes 18. In this structure, the guide holes 18 are used to limit the movement of the push bars 16, and at the same time limit the front and rear positions of the telescopic cover 4 and the shielding door body 1.

[0019] refer to Figures 1 to 5 As shown, buffers 19 are fixedly connected to the upper and lower sides of the partition 3. When the pull plate 9 retracts, the buffers 19 are used to buffer the instantaneous impact, thereby protecting the structure.

[0020] refer to Figures 1 to 5 As shown, a rubber pad 22 is fixedly installed on the clamping surface of the telescopic cover 4. This structure uses the rubber pad 22 to reduce the damage caused by the telescopic cover 4 when squeezing objects or people.

[0021] The implementation principle of a novel anti-pinch device for rail transit platform screen doors in this application embodiment is as follows: During use, when the main body 1 of the platform screen door accidentally pinches an object or person, the telescopic cover 4 on the main body 1 first contacts and is squeezed outwards. At this time, the push bar 16 on the telescopic cover 4 pushes the push plate 15 to rotate until the push plate 15 is pushed to the limit rod 17. At this time, the inclined surface 21 of the push plate 15 is parallel to the bottom of the push bar 16. The push plate 15 then drives the locking hook 12 to rotate against the torque of the torsion spring 10 through the connecting plate 14, thereby locking the hook. Hook 12 disengages from inclined locking block 11. At this time, pull plate 9 is released from restraint, and tension spring 10 is released, thus rapidly pulling pull plate 9 to move. Pull plate 9 drives vertical plate 7 to move through pull rod 8. At this time, vertical plate 7 pulls stop block 9, thereby causing telescopic cover 4 on slide rod 5 to retract rapidly, thus actively freeing items and personnel from the clamping state. This can further reduce the damage to items or people caused by clamping, improve the anti-pinch effect, and adopt a purely mechanical retraction structure. The device has low cost, fast response, and higher safety in use, making it worthy of promotion.

[0022] This specification includes any feature disclosed in any appended claims, abstract, and drawings, which, unless specifically stated otherwise, may be replaced by other equivalent or similar features. That is, unless specifically stated otherwise, each feature is merely one example of a series of equivalent or similar features.

[0023] In the description of this utility model, it should be understood that the terms "one end", "the other end", "outer side", "upper", "inner side", "horizontal", "coaxial", "center", "end", "length", "outer end", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] Furthermore, in the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0025] The terms used in this invention, such as “above,” “over,” “below,” and “under,” indicating spatial relative position, are for ease of explanation and to describe the relationship of one unit or feature relative to another unit or feature as shown in the accompanying drawings. The terms of spatial relative position may be intended to include different orientations of the device in use or operation other than those shown in the figures. For example, if the device in the figures is flipped, a unit described as being “below” or “under” other units or features would be located “above” other units or features. Therefore, the exemplary term “under” can encompass both above and below orientations. The device may be otherwise oriented, rotated 90 degrees, or otherwise, and the spatially related descriptive terms used herein shall be interpreted accordingly.

[0026] In this utility model, unless otherwise explicitly specified and limited, the terms "set," "socket," "connect," "through," and "plug-in" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0027] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A novel anti-pinch device for rail transit platform screen doors, comprising a main body (1) of a rail transit platform screen door, characterized in that: The shielding door body (1) includes a hollow door body (2), a partition (3) is fixedly connected inside the hollow door body (2), a telescopic cover (4) is movably connected to one side of the hollow door body (2), two sliding rods (5) are fixedly connected to the inner wall of one side of the telescopic cover (4), a stop block (6) is fixedly connected to one end of the sliding rod (5), a vertical plate (7) is slidably connected to the sliding rod (5), a pull rod (8) is fixedly connected to the vertical plate (7), the pull rod (8) is slidably connected to one side wall of the hollow door body (2), and a pull plate (9) is fixedly connected to one end of the pull rod (8) extending into the interior of the hollow door body (2), and the pull plate (9) is hooked to the partition (3). There are multiple tension springs (10), and the upper and lower ends of the pull plate (9) are fixedly connected to inclined locking blocks (11). The upper and lower sides of the pull plate (9) are provided with locking hooks (12) that are rotatably installed on the hollow door body (2). The locking hooks (12) are locked to the inclined locking blocks (11). Both sides of the shaft of the locking hook (12) are fitted with torsion springs (13) that provide downward rotation force to the locking hook (12). The upper part of the locking hook (12) is rotatably connected to two connecting plates (14). The upper end of the connecting plate (14) is rotatably connected to a push plate (15). The push plate (15) is rotatably installed on the hollow door body (2). The upper and lower inner walls of the telescopic cover (4) are fixedly connected to push bars (16).

2. The novel anti-pinch device for rail transit platform screen doors as described in claim 1, characterized in that: A limiting rod (17) is fixedly installed on one side of the push plate (15) on the hollow door body (2).

3. The novel anti-pinch device for rail transit platform screen doors as described in claim 1, characterized in that: The hollow door body (2) has guide holes (18) on both the upper and lower sides. The push bar (16) is set in the guide hole (18) and can slide along the guide hole (18).

4. The novel anti-pinch device for rail transit platform screen doors as described in claim 1, characterized in that: The upper and lower sides of the partition (3) are fixedly connected with buffers (19).

5. A novel anti-pinch device for rail transit platform screen doors as described in claim 1, characterized in that: One end of the push bar (16) is constructed with a first inclined surface (20), and the upper end of the push plate (15) is constructed with a second inclined surface (21) that is adapted to the first inclined surface (20).

6. A novel anti-pinch device for rail transit platform screen doors as described in claim 1, characterized in that: A rubber pad (22) is fixedly installed at the clamping surface of the telescopic cover (4).

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