Elevator shaft safety door

By introducing a combined structure of a gate, a hydraulic rod and a shock-absorbing spring into the elevator shaft safety door, a limiting connection between the plug rod and the gate is achieved, which solves the problem of inconvenient limiting and improves the safety and convenience of using the elevator shaft safety door.

CN223328826UActive Publication Date: 2025-09-12CHINA OVERSEAS CONSTR LTD
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Patent Information

Application Number
CN202422553023.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-22
Publication Date
2025-09-12
Estimated Expiration
2034-10-22

AI Technical Summary

Technical Problem

The existing elevator shaft safety door is inconvenient in limit operation, which may cause the safety door to open by mistake, affecting the convenience of use.

Method used

An elevator shaft safety door is designed. The combined structure of the gate plate, hydraulic rod, shock-absorbing spring and slide plate is used to achieve a limited connection between the plug rod and the gate plate. Anti-slip strips and buffer rings are used for limiting and buffering to prevent accidental opening.

Benefits of technology

It improves the safety and convenience of using the safety door, prevents accidental opening, and enhances the protective effect of the door body.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an elevator shaft safety door, and relates to the technical field of elevators. The elevator shaft safety door comprises a frame, cavities are formed in the two sides of the inner wall of the frame, a telescopic rod is fixedly installed on one side of the inner wall of each cavity, a gate plate is fixedly installed at one end of each telescopic rod, a touch switch is fixedly installed on the inner bottom wall of the frame, and vertical pipes are fixedly installed on the two sides of the top of the frame; a hydraulic rod is fixedly installed at the inner top of the vertical pipe, a damping spring is fixedly installed at the bottom of the hydraulic rod, and a sliding plate is fixedly installed at the bottom of the damping spring. According to the safety door, the inserting rod is conveniently inserted into the top of the gate plate, so that the gate plate is conveniently limited, the gate plate cannot be opened by pulling in the gate plate closing process, the use safety of the safety door is improved, and the use convenience of the safety door is improved.
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Description

Technical Field

[0001] The utility model relates to the technical field of elevators, in particular to an elevator shaft safety door. Background Art

[0002] An elevator is a vertical lift powered by an electric motor and equipped with a box-shaped cabin, used to transport people or goods in multi-story buildings. There are also step-type elevators, with treads mounted on tracks and running continuously, commonly known as escalators or moving walkways. A vertical elevator is a fixed lifting device serving designated floors. It features a car that travels between at least two vertical rigid guide rails. The car's size and structure facilitate passenger entry and exit, as well as loading and unloading of goods. Conventionally, elevators are a general term for vertical transportation within a building, regardless of their drive method. They can be categorized by speed as low-speed elevators (under 1 m / s), fast elevators (1-2 m / s), and high-speed elevators (above 2 m / s). Hydraulic elevators began appearing in the mid-19th century and are still used in low-rise buildings. Further improvements to the drive mechanism were made in the 1980s, such as the use of a motor driving a winding drum through a worm gear and counterweights. By the end of the 19th century, friction wheel drive was adopted, significantly increasing the elevator's lifting height. An existing patent, Patent Publication No. CN221095946U, discloses an elevator shaft safety door comprising a door body and lugs. Connecting shafts are provided on either side of the door body's top. The lugs are symmetrically fixed to either side of the elevator shaft. Track holes are defined in the lugs, through which the connecting shafts extend. The present invention has the following beneficial effects: the hanging ear in the present invention is safer than the ordinary U-shaped hanging ear, and the connecting shaft is not easy to detach from the hanging ear. While the hanging ear provides a movable space for the connecting shaft, it also limits the movable range of the connecting shaft, preventing the connecting shaft from detaching from the hanging ear under external force impact, thereby improving the safety of the door body.

[0003] Regarding the above-mentioned related technologies, the inventors believe that there are the following defects: in actual application, it is inconvenient to perform limiting operations on them, which may cause the safety door to open by mistake, thereby affecting the convenience of using the safety door. Therefore, we proposed an elevator shaft safety door to solve the above-mentioned problems. Utility Model Content

[0004] In view of the deficiencies in the prior art, the present invention provides an elevator shaft safety door, which solves the problems raised in the above-mentioned background technology.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: an elevator shaft safety door, comprising a frame, wherein cavities are opened on both sides of the inner wall of the frame, a telescopic rod is fixedly installed on one side of the inner wall of the cavity, a gate is fixedly installed on one end of the telescopic rod, and a touch switch is fixedly installed on the inner bottom wall of the frame.

[0006] Vertical pipes are fixedly installed on both sides of the top of the frame, a hydraulic rod is fixedly installed on the inner top of the vertical pipe, a shock-absorbing spring is fixedly installed on the bottom of the hydraulic rod, a slide is fixedly installed on the bottom of the shock-absorbing spring, a plug-in rod is fixedly installed on the bottom of the slide, the bottom of the plug-in rod is plugged into the top of the gate, and a plug-in hole for the plug-in rod is opened on the top of the gate, and an anti-slip strip is fixedly installed on the inner wall of the plug-in hole.

[0007] By setting the gate to squeeze the touch switch, the hydraulic rod then drives the slide on the shock-absorbing spring to move, thereby facilitating the movement of the plug rod and the plugging of the plug rod with the top of the gate, thereby facilitating the limiting of the plug rod. During the closing process of the gate, the gate cannot be opened by pulling the gate, thereby improving the safety of the safety door and improving the convenience of use of the safety door.

[0008] Preferably, the surface of the gate plate is slidably connected to the inner wall of the cavity, and the gate plate is adapted to the cavity.

[0009] Preferably, mounting plates are fixedly mounted on both sides of the bottom and top of the frame, mounting holes are provided on the mounting plates, the mounting holes are oblong holes, and anti-slip grooves are provided on one side of the mounting plates.

[0010] Preferably, a socket for the insertion rod to pass through is provided on the top of the frame, and the inner wall of the socket is slidably connected to the surface of the insertion rod.

[0011] Preferably, the surface of the anti-slip strip is provided with anti-slip grooves, and the surface of the anti-slip strip is slidably connected to the surface of the insertion rod, and a buffer ring is fixedly installed on the inner bottom wall of the insertion hole.

[0012] By setting up the anti-slip strip and buffer ring, the effect of limiting and buffering the insertion rod is achieved, which facilitates the buffering and protection operations of the safety door during subsequent use and avoids the detachment of the firmware, thereby improving the convenience of using the safety door.

[0013] Preferably, a pull rod is fixedly installed on the top of the slide, one end of the pull rod passes through the vertical pipe and extends to the outside of the vertical pipe, a rod groove for the pull rod to pass through is opened on one side of the vertical pipe, and the inner wall of the rod groove is slidably connected to the surface of the pull rod.

[0014] Preferably, the surface of the slide plate is slidably connected to the inner wall of the vertical pipe, and the slide plate is adapted to the vertical pipe.

[0015] Beneficial effects

[0016] The utility model provides an elevator shaft safety door. Compared with the existing technology, it has the following advantages:

[0017] The elevator shaft safety door squeezes the touch switch through the gate plate, and then the hydraulic rod drives the slide on the shock-absorbing spring to move, thereby facilitating the movement of the plug rod and the plugging of the plug rod with the top of the gate plate, thereby facilitating the limiting of the plug rod. During the closing process of the gate plate, it cannot be opened by pulling the gate plate, thereby improving the safety and convenience of the safety door.

[0018] At the same time, through the setting of anti-slip strips and buffer rings, the effect of limiting and buffering the insertion rod is achieved, which facilitates the buffering and protection operations of the safety door during subsequent use and avoids the detachment of the firmware, thereby improving the convenience of using the safety door. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the first-angle perspective three-dimensional cross-sectional structure of the utility model;

[0021] Figure 3 For this utility model Figure 2 A schematic diagram of the structure at center A;

[0022] Figure 4 This is a schematic diagram of the three-dimensional cross-sectional structure of the utility model from a second viewing angle;

[0023] Figure 5 It is a schematic diagram of the three-dimensional structure of the gate plate of the utility model.

[0024] In the figure: 1. Frame; 2. Telescopic rod; 3. Gate; 4. Touch switch; 5. Vertical pipe; 6. Hydraulic rod; 7. Shock-absorbing spring; 8. Slide plate; 9. Insert rod; 10. Anti-slip strip; 11. Mounting plate; 12. Buffer ring; 13. Pull rod. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] See also Figure 1-5 The utility model provides a technical solution: an elevator shaft safety door, comprising a frame 1, with cavities on both sides of the inner wall of the frame 1, a telescopic rod 2 fixedly installed on one side of the inner wall of the cavity, a gate 3 fixedly installed on one end of the telescopic rod 2, and a touch switch 4 fixedly installed on the inner bottom wall of the frame 1.

[0027] Vertical tubes 5 are fixedly installed on both sides of the top of the frame 1, and a hydraulic rod 6 is fixedly installed on the inner top of the vertical tube 5. A shock-absorbing spring 7 is fixedly installed on the bottom of the hydraulic rod 6, and a slide 8 is fixedly installed on the bottom of the shock-absorbing spring 7. A plug-in rod 9 is fixedly installed on the bottom of the slide 8. The bottom of the plug-in rod 9 is plugged into the top of the gate plate 3. A plug-in hole for the plug-in rod 9 is opened on the top of the gate plate 3, and an anti-slip strip 10 is fixedly installed on the inner wall of the plug-in hole. The gate plate 3 squeezes the touch switch 4, and then the hydraulic rod 6 drives the slide 8 on the shock-absorbing spring 7 to move, so as to facilitate the movement of the plug-in rod 9 and the plugging of the plug-in rod 9 with the top of the gate plate 3, so as to facilitate its limiting. During the closing process of the gate plate 3, it cannot be opened by pulling the gate plate 3, which improves the safety of the safety door and the convenience of using the safety door.

[0028] See Figure 1 The surface of the gate plate 3 is slidably connected to the inner wall of the cavity, and the gate plate 3 is adapted to the cavity. Mounting plates 11 are fixedly installed on both sides of the bottom and top of the frame 1. A mounting hole is provided on the mounting plate 11. The mounting hole is an oblong hole. Anti-slip grooves are provided on one side of the mounting plate 11. The setting of the mounting plate 11 achieves the effect of facilitating its installation and positioning, thereby facilitating the installation and positioning of the safety door, facilitating the operation of subsequent staff, and improving the convenience of using the safety door.

[0029] See Figure 3 and Figure 5 The top of the frame 1 is provided with a socket for the insertion rod 9 to pass through, the inner wall of the socket is slidably connected to the surface of the insertion rod 9, the surface of the anti-slip strip 10 is provided with anti-slip grooves, and the surface of the anti-slip strip 10 is slidably connected to the surface of the insertion rod 9, and a buffer ring 12 is fixedly installed on the inner bottom wall of the socket hole. The setting of the anti-slip strip 10 and the buffer ring 12 achieves the effect of facilitating the limiting and buffering of the insertion rod 9, facilitating the buffering and protection operations of the safety door during subsequent use, and avoiding the detachment of the firmware, thereby improving the convenience of using the safety door.

[0030] See Figure 3 A pull rod 13 is fixedly installed on the top of the slide 8, one end of the pull rod 13 passes through the vertical pipe 5 and extends to the outside of the vertical pipe 5. A rod groove for the pull rod 13 to pass through is opened on one side of the vertical pipe 5, and the inner wall of the rod groove is slidingly connected to the surface of the pull rod 13, the surface of the slide 8 is slidingly connected to the inner wall of the vertical pipe 5, and the slide 8 is adapted to the vertical pipe 5.

[0031] During operation, the gate plate 3 squeezes the touch switch 4, and then the hydraulic rod 6 drives the slide plate 8 on the shock-absorbing spring 7 to move, so as to facilitate the movement of the insertion rod 9 and the insertion of the insertion rod 9 with the top of the gate plate 3, so as to facilitate its limiting. In the process of closing the gate plate 3, it is impossible to open it by pulling the gate plate 3, which improves the safety of the safety door and the convenience of using the safety door. The setting of the anti-slip strip 10 and the buffer ring 12 achieves the effect of facilitating the limiting and buffering of the insertion rod 9, facilitating the buffering and protection operations of the safety door during subsequent use, and avoiding the detachment of the firmware, thereby improving the convenience of using the safety door.

[0032] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

Claims

1. An elevator shaft safety door, comprising a frame (1), characterized in that: The inner wall of the frame (1) is provided with cavities on both sides, a telescopic rod (2) is fixedly mounted on one side of the inner wall of the cavity, a gate (3) is fixedly mounted on one end of the telescopic rod (2), and a touch switch (4) is fixedly mounted on the inner bottom wall of the frame (1); Vertical tubes (5) are fixedly installed on both sides of the top of the frame (1), a hydraulic rod (6) is fixedly installed on the inner top of the vertical tube (5), a shock-absorbing spring (7) is fixedly installed on the bottom of the hydraulic rod (6), a slide plate (8) is fixedly installed on the bottom of the shock-absorbing spring (7), a plug rod (9) is fixedly installed on the bottom of the slide plate (8), the bottom of the plug rod (9) is plugged into the top of the gate plate (3), and a plug hole for plugging the plug rod (9) is opened on the top of the gate plate (3), and an anti-slip strip (10) is fixedly installed on the inner wall of the plug hole.

2. An elevator shaft safety door according to claim 1, characterized in that: The surface of the gate plate (3) is slidably connected to the inner wall of the cavity, and the gate plate (3) is adapted to the cavity.

3. The elevator shaft safety door according to claim 1, characterized in that: Mounting plates (11) are fixedly mounted on both sides of the bottom and top of the frame (1). Mounting holes are provided on the mounting plates (11), and the mounting holes are oblong holes. Anti-slip grooves are provided on one side of the mounting plates (11).

4. The elevator shaft safety door according to claim 1, characterized in that: The top of the frame (1) is provided with a socket for the insertion rod (9) to pass through, and the inner wall of the socket is slidably connected to the surface of the insertion rod (9).

5. The elevator shaft safety door according to claim 1, characterized in that: The surface of the anti-slip strip (10) is provided with anti-slip grooves, and the surface of the anti-slip strip (10) is slidably connected to the surface of the insertion rod (9), and a buffer ring (12) is fixedly installed on the inner bottom wall of the insertion hole.

6. The elevator shaft safety door according to claim 1, characterized in that: A pull rod (13) is fixedly mounted on the top of the slide plate (8), one end of the pull rod (13) passes through the vertical tube (5) and extends to the outside of the vertical tube (5), and a rod groove for the pull rod (13) to pass through is opened on one side of the vertical tube (5), and the inner wall of the rod groove is slidably connected to the surface of the pull rod (13).

7. The elevator shaft safety door according to claim 1, characterized in that: The surface of the slide plate (8) is slidably connected to the inner wall of the vertical pipe (5), and the slide plate (8) is adapted to the vertical pipe (5).

Citation Information

Patent Citations

  • Elevator shaft safety door

    CN221095946U