Manual shielding door
By designing the handle and rotating connecting plate structure of the manual shielding door, the problem of the shielding door being unable to be manually opened during a sudden power outage was solved, realizing the manual opening function in the absence of power and ensuring the electromagnetic shielding effect of the equipment.
Patent Information
- Application Number
- CN202520252320.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-18
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-02-18
AI Technical Summary
The existing shielded doors cannot be manually opened in the event of a sudden power outage, thus failing to protect the internal electronic equipment.
A manual shielding door was designed. By connecting the handle to the rotating connecting plate, the rotating connecting plate is rotated, which drives the connecting rod and the limiting mechanism, causing the limiting block to disengage from the limiting groove, thereby allowing the door to be opened or closed manually.
It enables manual opening of the shielded door even in the absence of power, avoiding the problem of the door being unable to open due to power outages and ensuring electromagnetic protection of internal equipment.
Smart Images

Figure CN223838988U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of shielding door technology, and in particular to a manual shielding door. Background Technology
[0002] Shielding doors, also known as electromagnetic shielding doors, are devices that use metallic materials to reflect, absorb, or guide external electromagnetic waves. They are primarily used to protect internal electronic equipment from external electromagnetic interference. They mainly consist of a metallic shielding structure, a conductive sealing door, and a control system. The metallic shielding structure is typically made of metallic materials with good conductivity and reflectivity, such as aluminum alloys and copper alloys. These materials can effectively reflect, absorb, or guide external electromagnetic waves, thus achieving a shielding effect.
[0003] Most existing platform screen doors are electrically operated. In case of an emergency, if the internal power supply fails, the screen door will not be able to open. Since most screen doors are made of metal, they cannot be opened by impact alone, thus preventing the screen door from being opened. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a manual shielding door.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A manual screen door includes a door frame, a door leaf rotatably mounted on one side of the door frame, a door leaf including a mounting frame, door panels symmetrically mounted on both sides of the mounting frame, a rotating connecting plate rotatably mounted inside the door leaf and on the surface of one side of the door panel, a first connecting rod rotatably connected to the upper and lower parts of the rotating connecting plate, and handles symmetrically rotatably mounted in the middle of the rotating connecting plate, the handles being located on both sides of the door leaf.
[0007] In addition, a preferred structure is that limit seats are symmetrically arranged on one side surface of the door frame, and limit blocks are provided on the limit seats.
[0008] In addition, a preferred structure is that the other end of the first connecting rod away from the rotating connecting plate is rotatably connected to a connecting mechanism, and the connecting mechanism is provided with a sliding bracket, which is mounted on the mounting frame.
[0009] Furthermore, in a preferred configuration, the connecting mechanism includes a connecting rod, one end of which is fixedly connected to a second rotating connector that is rotatably connected to the first connecting rod, and the other end of which is fixedly connected to a first rotating connector. A second connecting rod is rotatably connected to the first rotating connector, and the other end of the second connecting rod, away from the first rotating connector, is rotatably connected to a limiting mechanism, which is rotatably mounted on the mounting frame.
[0010] Furthermore, in a preferred configuration, a sliding block is provided on the sliding bracket, and the connecting rod is vertically slidably engaged with the sliding block.
[0011] Furthermore, in a preferred configuration, the limiting mechanism includes a rotating seat, which is mounted on the mounting frame, and the limiting mechanism is located on one side of the limiting seat. A crank connecting rod is rotatably mounted on the rotating seat, with one end of the crank connecting rod rotatably connected to the second connecting rod and the other end fixedly connected to a limiting block. A limiting groove is formed on the limiting block.
[0012] The beneficial effects of this utility model are as follows: This utility model connects the handle to the rotating connecting plate. When the handle is turned, the rotating connecting plate can be rotated, thereby manually disengaging the upper and lower limit blocks from the limit blocks. This allows the shielding door to be opened or closed manually, eliminating the need for a motor to drive the opening of the manual shielding door. Attached Figure Description
[0013] Figure 1 A schematic diagram of the manually operated platform screen door in the closed state;
[0014] Figure 2 A schematic diagram of the manually opened platform screen door;
[0015] Figure 3 This is a schematic diagram of the limiting seat.
[0016] Figure 4 This is a schematic diagram of the internal structure of the door leaf;
[0017] Figure 5 This is a schematic diagram of the structure of the handle and the rotating connecting plate;
[0018] Figure 6 This is a schematic diagram of the structure after the rotating connecting plate is separated from other components;
[0019] Figure 7 This is a schematic diagram of the structure after the connecting mechanism is separated from the sliding seat;
[0020] Figure 8 This is a schematic diagram of the connecting mechanism;
[0021] Figure 9 This is a schematic diagram of the disassembled limit mechanism.
[0022] In the diagram: 1. Door frame, 2. Door leaf, 21. Door panel, 22. Mounting frame, 3. Handle, 4. Limiting seat, 41. Limiting block, 5. First connecting rod, 6. Connecting mechanism, 61. First rotating connector, 62. Second rotating connector, 63. Connecting rod, 7. Rotating connecting plate, 8. Second connecting rod, 9. Limiting mechanism, 91. Rotating seat, 92. Limiting block, 921. Limiting groove, 93. Crank connecting rod, 10. Sliding seat, 101. Sliding block. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0024] Reference Figure 1-9 A manual shielding door includes a door frame 1, a door leaf 2 rotatably mounted on one side of the door frame 1, a mounting frame 22, door panels 21 symmetrically mounted on both sides of the mounting frame 22, a rotating connecting plate 7 rotatably mounted inside the door leaf 2 and located on the surface of one side of the door panel 21, a first connecting rod 5 rotatably connected to the upper and lower parts of the rotating connecting plate 7, and a handle 3 symmetrically rotatably mounted in the middle of the rotating connecting plate 7, the handles 3 being located on both sides of the door leaf 2, and the rotating connecting plate 7 can synchronously drive the upper and lower sides to move simultaneously.
[0025] Among them, a limit seat 4 is symmetrically arranged on the upper and lower sides of one side surface of the door frame 1, and a limit block 41 is provided on the limit seat 4. The limit block 41 is used to be stuck by the limit mechanism 9.
[0026] Furthermore, the other end of the first connecting rod 5 away from the rotating connecting plate 7 is rotatably connected to the connecting mechanism 6. The connecting mechanism 6 is provided with a sliding bracket 10, which is installed on the mounting frame 22. The sliding bracket 10 is used to ensure that the connecting mechanism 6 is vertically movable.
[0027] In addition, the connecting mechanism 6 includes a connecting rod 63. One end of the connecting rod 63 is fixedly connected to a second rotating connector 62 that is rotatably connected to the first connecting rod 5, and the other end is fixedly connected to a first rotating connector 61. A second connecting rod 8 is rotatably connected to the first rotating connector 61. The other end of the second connecting rod 8, away from the first rotating connector 61, is rotatably connected to a limiting mechanism 9. The limiting mechanism 9 is rotatably mounted on the mounting frame 22. The second connecting rod 8 is used to perform the connecting function.
[0028] The sliding bracket 10 is provided with a sliding block 101, and the connecting rod 63 is vertically slidably engaged with the sliding block 101.
[0029] In addition, the limiting mechanism 9 includes a rotating seat 91, which is mounted on the mounting frame 22. The limiting mechanism 9 is located on one side of the limiting seat 4. A crank connecting rod 93 is rotatably mounted on the rotating seat 91. One end of the crank connecting rod 93 is rotatably connected to the second connecting rod 8, and the other end is fixedly connected to a limiting block 92. A limiting groove 921 is provided on the limiting block 92 to facilitate the entry of the limiting block 41.
[0030] In this embodiment, when it is necessary to open the shielding door and rotate the door leaf 2, the handles 3 on both sides can be rotated to rotate the internal rotating connecting plate 7. After the rotating connecting plate 7 rotates clockwise, it drives the first connecting rods 5 on both sides to rotate synchronously, so that the first connecting rods 5 pull the upper and lower connecting mechanism 6 to move vertically on the sliding bracket 10, and synchronously drive the second connecting rod 8 to rotate the crank connecting rod 93. When the crank connecting rod 93 rotates, the limiting block 92 on one side rotates, and the limiting block 41 is disengaged from the limiting groove 921. At this time, the operator can open the door leaf 2.
[0031] In this utility model, the handle 3 is connected to the rotating connecting plate 7. When the handle 3 is turned, the rotating connecting plate 7 can be rotated, thereby manually rotating the upper and lower limit blocks 92 and disengaging them from the limit blocks 41. This allows the shielding door to be opened or closed manually, and such a manual shielding door does not require a motor to drive it open.
[0032] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A manually operated screen door, including a door frame (1), characterized in that, A door leaf (2) is rotatably provided on one side of the door frame (1). The door leaf (2) includes a mounting frame (22). Door panels (21) are symmetrically provided on both sides of the mounting frame (22). A rotating connecting plate (7) is rotatably provided inside the door leaf (2) and on the surface of one side of the door panel (21). The rotating connecting plate (7) is rotatably connected to the top and bottom of the first connecting rod (5). A handle (3) is symmetrically rotatably connected to the middle of the rotating connecting plate (7). The handle (3) is located on both sides of the door leaf (2).
2. The manual screen door according to claim 1, characterized in that, The door frame (1) is provided with symmetrical limit seats (4) on one side surface, and limit blocks (41) are provided on the limit seats (4).
3. The manual shielding door according to claim 2, characterized in that, The first connecting rod (5) is rotatably connected to a connecting mechanism (6) at the other end away from the rotating connecting plate (7). A sliding bracket (10) is provided on the connecting mechanism (6), and the sliding bracket (10) is installed on the mounting frame (22).
4. The manual shielding door according to claim 3, characterized in that, The connecting mechanism (6) includes a connecting rod (63), one end of which is fixedly connected to a second rotating connector (62) that is rotatably connected to the first connecting rod (5), and the other end is fixedly connected to a first rotating connector (61). A second connecting rod (8) is rotatably connected to the first rotating connector (61), and the other end of the second connecting rod (8) away from the first rotating connector (61) is rotatably connected to a limiting mechanism (9). The limiting mechanism (9) is rotatably mounted on the mounting frame (22).
5. The manual shielding door according to claim 4, characterized in that, A sliding block (101) is provided on the sliding bracket (10), and the connecting rod (63) slides vertically and engages with the sliding block (101).
6. The manual shielding door according to claim 4, characterized in that, The limiting mechanism (9) includes a rotating seat (91), which is mounted on the mounting frame (22). The limiting mechanism (9) is located on one side of the limiting seat (4). A crank connecting rod (93) is rotatably mounted on the rotating seat (91). One end of the crank connecting rod (93) is rotatably connected to the second connecting rod (8), and the other end is fixedly connected to a limiting block (92). A limiting groove (921) is opened on the limiting block (92).