Elevator shaft opening protective door with fixing points capable of being flexibly selected

The design of the bidirectional screw and threaded sleeve structure enables rapid connection and flexible installation of the elevator shaft safety door, solving the installation burden caused by inflexible selection of fixing points and improving installation convenience.

CN223963065UActive Publication Date: 2026-03-03CSCEC INT URBAN CONSTR CO LTD
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Patent Information

Application Number
CN202520773996.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-23
Publication Date
2026-03-03
Estimated Expiration
2035-04-23

AI Technical Summary

Technical Problem

The lack of flexibility in selecting fixing points for existing elevator shaft safety doors increases the installation burden.

Method used

It adopts a two-way lead screw and threaded sleeve structure. By rotating the handle, the threaded sleeve and connecting block are displaced. The appropriate mounting hole is selected for fixing. Combined with the design of bolts and anti-slip caps, it can achieve quick docking.

Benefits of technology

It improves the installation compatibility of elevator shaft safety doors, reduces installation space occupation, facilitates personnel operation, and reduces installation difficulty.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of elevator shaft opening protection, in particular to an elevator shaft opening protection door with flexibly-selected fixing points, and solves the problems that in the prior art, due to the influence of the installation environment, personnel need to select proper fixing points for the protection door to connect the protection door with a door frame, and if in the butt joint process, the safety of the protection door is influenced. Fixing points cannot be flexibly selected by actual workers, so that the installation burden of the workers is increased. An elevator shaft opening protective door with fixing points capable of being flexibly selected comprises a door frame, a door plate is arranged on one side of the door frame, mounting grooves are formed in the two sides of the door plate, two-way lead screws are vertically arranged in inner cavities of the mounting grooves, the two sides of the outer rings of the two-way lead screws are sleeved with threaded sleeves, and connecting blocks are arranged on one sides of the outer rings of the threaded sleeves. According to the utility model, personnel can adaptively select and use the fixed point positions according to the actual installation environment, so that the installation adaptability of the protective door and the terrain is improved, and convenience is brought to the installation and use operation of the personnel.
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Description

Technical Field

[0001] This utility model relates to the field of elevator shaft protection technology, and in particular to an elevator shaft protection door with a flexibly selectable fixed point. Background Technology

[0002] Elevator shaft safety doors are safety devices installed in front of elevator shafts. Their main function is to protect passengers and belongings from falling into the shaft and to prevent unauthorized personnel from entering the elevator shaft. These safety doors play a vital role in modern buildings, providing crucial protection for the safety of passengers and the building itself.

[0003] During the actual installation of elevator shaft safety doors, due to the influence of the installation environment, personnel need to select appropriate fixing points to connect the safety door to the door frame. If the fixing points cannot be flexibly selected by the actual workers during the connection process, it will increase the installation burden on the personnel. Therefore, an elevator shaft safety door with flexible fixing point selection is proposed. Utility Model Content

[0004] The purpose of this utility model is to provide an elevator shaft safety door with a flexible selection of fixing points. This solves the problem in the prior art where the installation environment affects the safety door, requiring personnel to select a suitable fixing point to connect the safety door to the door frame. If the fixing point cannot be flexibly selected by the actual workers during the connection process, it will increase the installation burden on the personnel.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A flexible fixed-point elevator shaft protection door includes a door frame, a door panel on one side of the door frame, mounting grooves on both sides of the door panel, a bidirectional threaded rod vertically installed in the inner cavity of the mounting groove, threaded sleeves on both sides of the outer ring of the bidirectional threaded rod, a connecting block on one side of the outer ring of the threaded sleeve, and several mounting holes on both sides of the outer wall of one side of the door frame, with one side of the outer ring of the threaded sleeve slidably connected to the inner wall of the adjacent mounting groove.

[0007] Preferably, a bolt is provided on one side of the connecting block, one end of the bolt extends through the inner cavity of the adjacent connecting block and the inner cavity of the corresponding mounting hole to one side of the door frame, and a nut is installed on the outer ring of the bolt.

[0008] Preferably, the bottom of the bidirectional lead screw is rotatably connected to the bottom of the inner cavity of the adjacent mounting groove via a rotating shaft, and the top of the bidirectional lead screw extends through the top of the inner cavity of the adjacent mounting groove to the top of the door frame via a bushing.

[0009] Preferably, an anti-slip cap is fixedly connected to the extension end of the bidirectional lead screw.

[0010] Preferably, a short block is fixedly connected to one side of the connecting block, and one side of the short block is fixedly connected to the outer ring side of the adjacent threaded sleeve.

[0011] Preferably, the two threaded sleeves are symmetrically distributed on the outer ring of the corresponding bidirectional lead screw, and a sliding groove is provided on one side of the inner wall of the mounting groove. A slider that matches the sliding groove is fixedly connected to one side of the outer ring of the threaded sleeve.

[0012] This utility model has at least the following beneficial effects:

[0013] When in use, personnel can select the appropriate mounting hole according to the actual situation. First, the operator rotates the handle, causing the double-ended lead screw to rotate. The two threaded sleeves on the double-ended lead screw simultaneously change position, causing the threaded sleeves to move the corresponding connecting blocks. When the connecting blocks move to the corresponding mounting holes, the operator uses bolts to fix the door panel to the door frame. Through structural design, the safety door at the elevator shaft opening has a quick docking effect. At the same time, the operator can adapt the fixing point to the actual installation environment, improving the adaptability of the safety door to the terrain and bringing convenience to the operator's installation and use.

[0014] This utility model also has the following beneficial effects:

[0015] The connecting block, along with bolts, connects the door panel to the door frame. The mounting groove reduces the space occupied by the internal structure. The anti-slip cap facilitates the operation of the bidirectional screw. The short block ensures a secure connection between the connecting block and the corresponding threaded sleeve. The slider and groove prevent the threaded sleeve from rotating with the bidirectional screw. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the connecting block structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the mounting hole structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the short block structure of this utility model;

[0021] Figure 5 This is a cross-sectional view of the door panel of this utility model.

[0022] In the diagram: 1. Door frame; 2. Door panel; 3. Mounting hole; 4. Connecting block; 5. Bolt; 6. Mounting groove; 7. Two-way lead screw; 8. Screw sleeve; 9. Short block; 10. Slide groove; 11. Slider. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0024] Reference Figure 1-5 A flexible fixed-point elevator shaft safety door includes a door frame 1, a door panel 2 on one side of the door frame 1, mounting grooves 6 on both sides of the door panel 2, a bidirectional threaded rod 7 vertically mounted inside the mounting groove 6, threaded sleeves 8 on both sides of the outer ring of the bidirectional threaded rod 7, a connecting block 4 on one side of the outer ring of the threaded sleeve 8, and several mounting holes 3 on both sides of the outer wall of one side of the door frame 1. The outer ring of the threaded sleeve 8 is slidably connected to the inner wall of the adjacent mounting groove 6. Specifically, when in use, personnel can select the appropriate mounting hole 3 according to the actual situation. Personnel first rotate... Turning the handle causes the double-acting screw 7 to rotate, simultaneously changing the position of the two threaded sleeves 8 on the double-acting screw 7. This causes the threaded sleeves 8 to move the corresponding connecting blocks 4. When the connecting blocks 4 move to the corresponding mounting holes 3, the personnel use bolts 5 to fix the door panel 2 to the door frame 1. Through structural design, the protective door at the elevator shaft opening has a quick docking effect. At the same time, personnel can adapt the fixing points according to the actual installation environment, improving the adaptability of the protective door to the terrain and bringing convenience to the personnel's installation and use operations.

[0025] This solution includes the following work process:

[0026] When in use, the operator can select the appropriate mounting hole 3 according to the actual situation. The operator first rotates the handle to rotate the double-acting screw 7. The two threaded sleeves 8 on the double-acting screw 7 change position at the same time, so that the threaded sleeves 8 drive the corresponding connecting block 4 to move. When the connecting block 4 moves to the corresponding mounting hole 3, the operator uses bolts 5 to fix the door panel 2 to the door frame 1.

[0027] Based on the above work process, it can be concluded that:

[0028] Through structural design, the protective door at the elevator shaft opening can be quickly connected. At the same time, personnel can select and use fixed points according to the actual installation environment, which improves the adaptability of the protective door to the terrain and brings convenience to the personnel's installation and use operations.

[0029] Furthermore, a bolt 5 is provided on one side of the connecting block 4. One end of the bolt 5 extends through the inner cavity of the adjacent connecting block 4 and the inner cavity of the corresponding mounting hole 3 to one side of the door frame 1. A nut is installed on the outer ring of the bolt 5. Specifically, the connecting block 4 is used in conjunction with the bolt 5 to connect the door panel 2 and the door frame 1.

[0030] Furthermore, the bottom of the bidirectional lead screw 7 is rotatably connected to the bottom of the inner cavity of the adjacent mounting groove 6 via a rotating shaft, and the top of the bidirectional lead screw 7 extends through the top of the inner cavity of the adjacent mounting groove 6 to the top of the door frame 1 via a bushing. Specifically, the installation groove 6 reduces the space occupied by its internal structure.

[0031] Furthermore, an anti-slip cap is fixedly connected to the extension end of the bidirectional lead screw 7. Specifically, the anti-slip cap facilitates the operation of the bidirectional lead screw 7 for rotation.

[0032] Furthermore, a short block 9 is fixedly connected to one side of the connecting block 4, and one side of the short block 9 is fixedly connected to the outer ring side of the adjacent threaded sleeve 8. Specifically, the setting of the short block 9 enables the connecting block 4 to be securely connected to the corresponding threaded sleeve 8.

[0033] Furthermore, two threaded sleeves 8 are symmetrically distributed on the outer ring of the corresponding bidirectional lead screw 7. A sliding groove 10 is provided on one side of the inner wall of the mounting groove 6. A slider 11 that matches the sliding groove 10 is fixedly connected to one side of the outer ring of the threaded sleeve 8. Specifically, the setting of the slider 11 and the sliding groove 10 ensures that the threaded sleeve 8 will not rotate with the bidirectional lead screw 7.

[0034] In summary: When using the device, the operator can select the appropriate mounting hole 3 according to the actual situation. The operator first rotates the handle, causing the double-acting screw 7 to rotate. Simultaneously, the two threaded sleeves 8 on the double-acting screw 7 change position, causing the corresponding connecting block 4 to move. When the connecting block 4 moves to the corresponding mounting hole 3, the operator uses bolts 5 to fix the door panel 2 to the door frame 1. The connecting block 4, in conjunction with the bolts 5, connects the door panel 2 to the door frame 1. The mounting groove 6 reduces the impact on the internal structure. To minimize space occupation, the anti-slip cap facilitates the operation of the bidirectional lead screw 7 for rotation. The short block 9 ensures a secure connection between the connecting block 4 and the corresponding threaded sleeve 8. The slider 11 and the slide groove 10 prevent the threaded sleeve 8 from rotating with the bidirectional lead screw 7. This structural design allows the elevator shaft safety door to be quickly connected. Furthermore, personnel can select and adapt the fixed points according to the actual installation environment, improving the adaptability of the safety door to the terrain and facilitating installation and use.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A flexible fixed point selectable elevator shaft access door comprising a door frame (1), characterised in that, One side of the door frame (1) is provided with a door plate (2), both sides of the door plate (2) are provided with a mounting groove (6), the inner cavity of the mounting groove (6) is vertically provided with a bidirectional screw rod (7), both sides of the outer ring of the bidirectional screw rod (7) are provided with a screw sleeve (8), one side of the outer ring of the screw sleeve (8) is provided with a connecting block (4), both sides of the outer wall of the door frame (1) are provided with a plurality of mounting holes (3), and the outer ring of the screw sleeve (8) is connected with the inner wall of the adjacent mounting groove (6) on one side.

2. A fixed point flexibly selectable elevator shaft access door according to claim 1, characterized in that, One side of the connecting block (4) is provided with a bolt (5), one end of the bolt (5) extends through the inner cavity of the adjacent connecting block (4) and the inner cavity of the corresponding mounting hole (3) to the side of the door frame (1) in sequence, and a nut is mounted on the outer ring of the bolt (5).

3. A fixed point flexibly selectable elevator shaft access door according to claim 1, characterized in that, The bottom of the bidirectional screw rod (7) is rotatably connected with the inner cavity bottom of the adjacent mounting groove (6), and the top of the bidirectional screw rod (7) extends to the upper side of the door frame (1) through the shaft sleeve penetrating the inner cavity top of the adjacent mounting groove (6).

4. A fixed point flexibly selectable elevator shaft access door according to claim 3, characterized in that, The extending end of the bidirectional screw rod (7) is fixedly connected with an anti-skid cap.

5. A fixed point flexibly selectable elevator shaft access door according to claim 1, characterized in that, One side of the connecting block (4) is fixedly connected with a short block (9), and one side of the short block (9) is fixedly connected with one side of the outer ring of the adjacent screw sleeve (8).

6. A fixed point flexibly selectable elevator shaft access door according to claim 1, characterized in that, Two screw sleeves (8) are symmetrically distributed on the outer ring of the corresponding bidirectional screw rod (7), one side inner wall of the mounting groove (6) is provided with a sliding groove (10), and the outer ring of the screw sleeve (8) is fixedly connected with a sliding block (11) matched with the sliding groove (10).