Elevator car top safety window

Abstract

The utility model discloses an elevator car roof safety window, including window frame, window frame: its left and right inner side wall all is equipped with track, and the sliding connection of two tracks has two or more than two window boards no.

Description

Technical Field

[0001] This utility model relates to the field of elevator technology, specifically to a safety window on the top of an elevator car. Background Technology

[0002] An elevator car top safety window is a special safety device, usually installed on the top of the elevator car. It is a closed, outward-opening window, primarily designed to provide passengers with an emergency exit and rescue passage in the event of an elevator accident or malfunction. Elevator car top safety windows have specific designs and functions. In the prior art, patent CN221587749 U discloses an elevator car top safety window, including a car top body with a slot. The car top body has a slot, and the first baffle has a slot for cooperating with the second baffle, while the second baffle has a slot for cooperating with the third baffle. This design uses multiple horizontally folding baffles instead of a traditional flipping structure, thus reducing the space required for flipping and improving usability. However, the horizontal folding of multiple baffles occupies a large window space, reducing the window size and affecting usability. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the existing defects and provide an elevator car top safety window. When the elevator car top safety window is opened, multiple window panels one and two can rotate and fold. When the elevator car top safety window is opened, the opening is large and the space occupied is small, which improves the convenience of using the elevator car top safety window and can effectively solve the problems in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an elevator car top safety window, including a window frame;

[0005] Window frame: Tracks are provided on both its left and right inner walls. Two or more window panels 1 are slidably connected between the two tracks. Window panels 2 are hinged to the rear ends of the multiple window panels 1. Connecting seats are slidably connected inside the two tracks. Window panels 1 and the adjacent window panels 2 on the rear side are rotatably connected through vertically corresponding connecting seats. The rearmost window panel 2 is rotatably connected to the two tracks. Support bars are provided on the side of the track near the horizontal center of the window frame. Spring plates 1 are provided in the grooves on the upper surface of the support bars. Window panels 2 and 1 are both set to cooperate with the vertically corresponding spring plates 1. A lockable handle is rotatably connected to the front end of the window frame. The handle is set to cooperate with the frontmost window panel 1. When the elevator car top safety window is opened, multiple window panels 1 and 2 can rotate and fold. The elevator car top safety window has a large opening and occupies little space when opened, which improves the convenience of using the elevator car top safety window.

[0006] Furthermore, a support shaft is provided at the front end of the lower surface of the handle, and the support shaft is rotatably connected to the window frame. A lever is provided at the rear end of the lower surface of the handle, and a positioning plate is provided on the upper surface of the foremost window panel one. The lever and the positioning plate are configured to facilitate the closing of window panel two and window panel one.

[0007] Furthermore, a ratchet is provided in the middle of the outer arc surface of the support shaft, and a pawl plate is rotatably connected to the front end inside the window frame. The pawl plate is movably engaged with the ratchet, and a second spring plate is provided at the front end inside the window frame. The second spring plate is configured to cooperate with the pawl plate to restrict the self-locking of the support shaft.

[0008] Furthermore, the front end of the window frame is rotatably connected to a rotating shaft, and a lever is provided on the outer arc surface of the rotating shaft. The lever is configured to cooperate with the left end of the ratchet plate to facilitate the control of the movement of the ratchet plate.

[0009] Furthermore, a triangular prism is provided at the upper end of the rotating shaft, and a positioning block is provided on the outer arc surface of the rotating shaft. The front end of the positioning block is located between the ratchet plate and the left side wall of the front end of the window frame, which facilitates the control of the rotation of the rotating shaft.

[0010] Furthermore, an extension rod is slidably connected to the rear end inside the handle. The upper surface of the extension rod is provided with a positioning pin, which is slidably connected to the long sliding hole on the upper surface of the handle, facilitating effortless operation of the handle.

[0011] Furthermore, a limit switch is provided inside the front end of the window frame. The limit switch is configured to cooperate with the frontmost window panel. The output end of the limit switch is electrically connected to the input end of the elevator controller to facilitate the detection of the position of the window panel.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This elevator car top safety window has the following advantages:

[0013] The safety window on the elevator car top consists of multiple hinged window panels, namely Window Panel 1 and Window Panel 2. After the locking mechanism is released, the spring plates will lift one end of Window Panel 1 and Window Panel 2, forming a serrated undulation that facilitates folding and closing. When the safety window on the elevator car top is opened, the multiple window panels can rotate and fold. The safety window on the elevator car top has a large opening and occupies little space when opened, improving the convenience of using the safety window on the elevator car top. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a cross-sectional view of the window frame of this utility model.

[0016] Figure 3 This is an enlarged structural diagram of point A in this utility model;

[0017] Figure 4 This is an enlarged structural diagram of section B of the present invention;

[0018] Figure 5 This is an enlarged structural diagram of point C in this utility model;

[0019] Figure 6 This is an enlarged structural diagram of point D in this utility model.

[0020] In the diagram: 1 Window frame, 2 Track, 3 Window panel one, 4 Window panel two, 5 Connecting seat, 6 Spring plate one, 7 Positioning plate, 8 Support shaft, 9 Handle, 10 Pulley, 11 Ratchet, 12 Pad plate, 13 Spring plate two, 14 Rotating shaft, 15 Pulley block, 16 Triangular post, 17 Positioning block, 18 Extension rod, 19 Positioning pin, 20 Limit switch, 21 Support bar. Detailed Implementation

[0021] 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.

[0022] Please see Figure 1-6 This embodiment provides a technical solution: an elevator car top safety window, including a window frame 1;

[0023] Window frame 1: Tracks 2 are provided on both its left and right inner walls. Window frame 1 provides installation positions for other components. Two or more window panels 3 are slidably connected between the two tracks 2. The tracks 2 provide movement guides for the window panels 3. Window panels 4 are hinged to the rear ends of the multiple window panels 3. Connecting seats 5 are slidably connected inside the two tracks 2. Window panels 3 and the adjacent rear window panels 4 are rotatably connected through vertically corresponding connecting seats 5. The connecting seats 5 connect window panels 3 and window panels 4. The rearmost window panel 4 is rotatably connected to the two tracks 2. Support bars 21 are provided on the side of the track 2 near the horizontal center of window frame 1. Spring plates 6 are provided inside the grooves on the upper surface of the support bars 21. The support bars 21 provide installation positions for the spring plates 6 and also support the window panels 4. Window panel 1 (3) provides support. Both window panel 2 (4) and window panel 1 (3) are equipped with vertically corresponding spring plates 1 (6). Spring plates 1 (6) push the vertically corresponding window panel 2 (4) or window panel 1 (3) upwards. The rear end of window panel 1 (3) is hinged to the vertically adjacent window panel 2 (4). The connection ends of window panels 1 (3) and window panel 2 (4) with the hinges will bulge upwards. Multiple window panels 1 (3) and window panel 2 (4) can form a sawtooth undulation, thus narrowing the overall width of window panels 1 (3) and window panel 2 (4). A lockable handle 9 is rotatably connected to the front end of window frame 1. Handle 9 is equipped with the foremost window panel 1 (3). The front end of the lower surface of handle 9 is equipped with a support shaft 8, which is rotatably connected to window frame 1. The rear end of the lower surface of handle 9 is equipped with a lever 10. The upper surface of the foremost window panel 1 (3) is equipped with a positioning plate 7. The lever 10 is configured to cooperate with the positioning plate 7. A ratchet 11 is provided in the middle of the outer arc surface of the support shaft 8. A pawl plate 12 is rotatably connected to the front end of the window frame 1. The pawl plate 12 is movably engaged with the ratchet 11. A second spring plate 13 is provided at the front end of the window frame 1. The second spring plate 13 is configured to cooperate with the pawl plate 12. During the rotation of the handle 9, the support shaft 8 drives the ratchet 11 to rotate. The ratchet 11 moves the pawl plate 12. The pawl plate 12 rotates and pushes the second spring plate 13. The second spring plate 13 undergoes elastic deformation, thereby enabling the support shaft 8 to self-lock and maintain the self-locking state of the second window panel 4 and the first window panel 3. A rotating shaft 14 is rotatably connected to the front end of the window frame 1. A lever 15 is provided on the outer arc surface of the rotating shaft 14. The lever 15 is configured to cooperate with the left end of the pawl plate 12. A triangular post 16 is provided at the upper end of the rotating shaft 14. Maintenance personnel can rotate the triangular post 16 clockwise using a triangular key from above the car, causing the rotating shaft 14 to rotate. A positioning block 17 is provided on the outer arc surface of the rotating shaft 14. The front end of the positioning block 17 is located between the ratchet plate 12 and the left side wall of the front end of the window frame 1. The positioning block 17 limits the rotation range of the rotating shaft 14. An extension rod 18 is slidably connected to the rear end of the handle 9. Pulling out the extension rod 18 actuates the handle 9. A positioning pin 19 is provided on the upper surface of the extension rod 18. The positioning pin 19 is slidably connected to a long sliding hole on the upper surface of the handle 9. The positioning pin 19 limits the extension rod 18's range of extension. A limit switch 20 is provided inside the front end of the window frame 1. The limit switch 20 is configured to cooperate with the foremost window panel 3.The output of limit switch 20 is electrically connected to the input of the elevator controller. The strike bar of limit switch 20 contacts the foremost window panel 3. When the foremost window panel 3 moves backward and opens, the strike bar of limit switch 20 automatically springs back up and sends an electrical signal to the elevator controller. Limit switch 20 detects the locking status of window panel 3 and window panel 4.

[0024] The working principle of the elevator car top safety window provided by this utility model is as follows: In use, the window frame 1 is installed on the top of the elevator car. In case of an emergency, maintenance personnel rotate the triangular column 16 clockwise using a triangular key above the car. The triangular column 16 drives the rotating shaft 14 to rotate, which in turn drives the lever 15 and positioning block 17 to rotate. The lever 15 rotates the ratchet plate 12, causing the ratchet plate 12 to press against the spring plate 13 and separate from the ratchet 11. Then, the ratchet 11 no longer restricts the counter-clockwise rotation of the support shaft 8. The handle 9 is then rotated counter-clockwise, causing the lever 10 to rotate counter-clockwise around the support shaft 8. The lever 10 no longer presses against the positioning plate 7. The spring plate 6 pushes the vertically corresponding window plate 4 or window plate 3 upwards. The rear end of window plate 3 is hinged to the longitudinally adjacent window plate 4 via a hinge. The connection between window plate 3 and window plate 4 and the hinge... The joint will bulge upwards, and multiple window panels 3 and 4 can form a sawtooth undulation, thus narrowing the overall width of window panels 3 and 4. The frontmost window panel 3 will leave a gap with the window frame 1. Then, push the frontmost window panel 3 backwards. The sliding shaft at the front end of window panel 3 will slide and rotate relative to the track 2, causing window panels 3 and 4 to fold backwards. When closing, pull window panel 3 forward to reset it, then pull out the extension rod 18 and turn the handle 9. The handle 9 will drive the positioning plate 7 and window panel 3 forward through the lever 10, thus flattening window panels 3 and 4 to seal the window of window frame 1. During the rotation of the handle 9, the support shaft 8 drives the ratchet 11 to rotate. The ratchet 11 moves the pawl plate 12, and the pawl plate 12 rotates to push the spring plate 13. The spring plate 13 undergoes elastic deformation, thus enabling the support shaft 8 to self-lock.

[0025] It is worth noting that the limit switch 20 disclosed in the above embodiments can be freely configured according to the actual application scenario. The limit switch 20 can be a limit switch of model LX19-131. The elevator controller controls the operation of the limit switch 20 using methods commonly used in the prior art.

[0026] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A safety window on the top of an elevator car, characterized in that: Including the window frame (1); Window frame (1): Tracks (2) are provided on both the left and right inner walls. Two or more window panels (3) are slidably connected between the two tracks (2). Window panels (4) are hinged to the rear ends of the multiple window panels (3). Connecting seats (5) are slidably connected inside the two tracks (2). Window panels (3) and the adjacent window panels (4) on the rear side are rotatably connected through vertically corresponding connecting seats (5). The window panel (4) on the rearmost side is rotatably connected to the two tracks (2). Support strips (21) are provided on the side of the track (2) near the horizontal center of the window frame (1). Spring plates (6) are provided in the grooves on the upper surface of the support strips (21). Window panels (4) and window panels (3) are both matched with vertically corresponding spring plates (6). A lockable handle (9) is rotatably connected to the front end of the window frame (1). The handle (9) is matched with the frontmost window panel (3).

2. The elevator car roof safety window according to claim 1, characterized in that: The front end of the lower surface of the handle (9) is provided with a support shaft (8), which is rotatably connected to the window frame (1). The rear end of the lower surface of the handle (9) is provided with a lever (10), and the upper surface of the frontmost window panel (3) is provided with a positioning plate (7). The lever (10) and the positioning plate (7) are configured to cooperate.

3. A safety window on the top of an elevator car according to claim 2, characterized in that: The support shaft (8) has a ratchet (11) in the middle of its outer arc surface. The front end of the window frame (1) is rotatably connected to a pawl plate (12). The pawl plate (12) is engaged with the ratchet (11). The front end of the window frame (1) is provided with a spring plate (13). The spring plate (13) is engaged with the pawl plate (12).

4. A safety window on the top of an elevator car according to claim 3, characterized in that: The front end of the window frame (1) is rotatably connected to a rotating shaft (14), and a lever (15) is provided on the outer arc surface of the rotating shaft (14). The lever (15) is engaged with the left end of the ratchet plate (12).

5. A safety window on the top of an elevator car according to claim 4, characterized in that: The upper end of the rotating shaft (14) is provided with a triangular column (16), and a positioning block (17) is provided on the outer arc surface of the rotating shaft (14). The front end of the positioning block (17) is located between the ratchet plate (12) and the left side wall of the front end of the window frame (1).

6. A safety window on the top of an elevator car according to claim 1, characterized in that: An extension rod (18) is slidably connected to the rear end inside the handle (9). A positioning pin (19) is provided on the upper surface of the extension rod (18). The positioning pin (19) is slidably connected to the long sliding hole on the upper surface of the handle (9).

7. A safety window on the top of an elevator car according to claim 1, characterized in that: The window frame (1) is equipped with a limit switch (20) inside the front end. The limit switch (20) is configured to cooperate with the frontmost window panel (3). The output end of the limit switch (20) is electrically connected to the input end of the elevator controller.

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