Door lock for shielding box
By setting the first handle outside the box and the second handle inside the box in the shielded box door lock, the two-way opening of the box door is achieved, solving the problem that people in the prior art may be trapped in the box, and improving the convenience and safety of operation.
Patent Information
- Application Number
- CN202422124121.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-30
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-08-30
AI Technical Summary
The door lock design of the existing shielded box cannot be opened from the box, causing personnel to be trapped in the box, resulting in operational errors.
A door lock for shielding box is designed, and the first handle and the second handle is arranged, and the opening and closing of the box door is realized by rotating the first handle outside the box and the second handle inside the box.
The box doors inside and outside the box are opened and closed, avoiding people being trapped in the box and improving the convenience and safety of operation.
Smart Images
Figure CN223018409U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of box door locks, and particularly relates to a door lock for a shielding box. Background Art
[0002] Shielding boxes are usually used in production tests. The design of a shielding box is to provide a non-interfering test environment. By using shielding bodies of various shapes such as shells, plates, and sleeves made of conductive or magnetic materials, the electromagnetic ability is restricted within a certain space range to suppress radiation interference.
[0003] The internal structure of such a shielding box usually adopts materials with high shielding performance, such as aluminum plates and absorbing sponges, to ensure good shielding effects. Usually, the shielding box adopts an opening and closing door lock design. However, most door locks can only be opened and closed from outside the box. When someone accidentally gets locked inside the shielding box and the door lock does not have the function of opening inside the box, the person will be trapped inside the box, which will cause great operation errors. This phenomenon has also become a problem that needs to be urgently solved by those skilled in the art. Summary of the Utility Model
[0004] The purpose of the utility model is to provide a door lock for a shielding box to solve the problems mentioned in the above background art in view of the existing technical defects.
[0005] To solve the above technical problems, the utility model provides the following technical solution: A door lock for a shielding box includes a box door. On one side of the outer surface of the box door, a transmission part is arranged. The input end of the transmission part is drivingly connected with a first handle, and the output end of the transmission part is drivingly connected with a plug rod.
[0006] A connecting rod is fixedly connected inside the first handle. The other end of the connecting rod penetrates through the box door and is fixedly connected with a second handle. The second handle is arranged on the inner surface of the box door.
[0007] The utility model further explains that a first plug block and a second plug block are respectively fixedly connected to the upper and lower sides of the transmission part. The plug rod sequentially penetrates and connects the first plug block, the transmission part, and the second plug block from top to bottom.
[0008] The utility model further explains that an ear seat is slidably connected to the lower part of the plug rod located at the transmission part. The ear seat is fixed on the outer surface of the box door.
[0009] The utility model further explains that a support disc is connected between the second handle and the box door by bearings.
[0010] The utility model further explains that a first rotating part is arranged on one side of the first handle, a first limiting block is arranged on one side of the second handle, the first rotating part and the first limiting block are connected by a rod, and a convex block is fixed on one side surface of the first limiting block.
[0011] For further illustration of the present utility model, auxiliary blocks are fixedly connected to one side of the outer ring of the first limiting block.
[0012] Compared with the prior art, the beneficial effects achieved by the present utility model are as follows: In the present utility model, with the settings of the first handle and the second handle, the door of the box can be opened by rotating the first handle outside the box. At the same time, the door of the box can also be opened by rotating the second handle inside the box, realizing the opening and closing of the door of the box inside and outside the box.
[0013] By adopting the first rotating part, the first limiting block, the auxiliary block, and the convex block, the stability of the insertion rod when it is in the upward position is ensured through the rotation of the first limiting block. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] The drawings are used to provide a further understanding of the present utility model and form a part of the specification. They are used together with the embodiments of the present utility model to explain the present utility model, but do not constitute a limitation to the present utility model. In the drawings:
[0015] Figure 1 is the front view structural schematic diagram of the present utility model;
[0016] Figure 2 is the rear view structural schematic diagram of the present utility model;
[0017] Figure 3 is the schematic diagram of the handle connection of the present utility model;
[0018] In the figure: 1, box door; 2, insertion rod; 3, transmission part; 4, first insertion block; 5, second insertion block; 6, ear seat; 7, first handle; 9, first rotating part; 11, first limiting block; 12, connecting rod; 13, support disk; 14, second handle; 15, auxiliary block; 16, convex block. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0019] The following provides a non-limiting detailed description of the technical solution of the present utility model in combination with the preferred embodiments and their accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0020] Please refer to Figures 1-3 , the present utility model provides a technical solution: A door lock for a shielding box, including the box door 1 of the shielding box. One side of the outer surface of the box door 1 is fixedly connected with a transmission part 3. The upper and lower sides of the transmission part 3 are respectively fixedly connected with a first insertion block 4 and a second insertion block 5. A transmission mechanism is arranged inside the transmission part 3, and the transmission mechanism includes, but is not limited to, a gear-rack meshing structure.
[0021] The output end of the transmission mechanism is connected with a plug rod 2. For example, a rack is fixed on the surface of the plug rod 2 located inside the transmission part 3. Under the transmission action, the rack can drive the plug rod 2 to move up and down; the plug rod 2 sequentially penetrates and connects a first plug block 4, a transmission part 3, and a second plug block 5 from top to bottom. The plug rod 2 is used to perform the insertion and locking steps of the box door 1 with the connecting box body or the bottom surface to ensure the locking of the box door 1.
[0022] A socket 6 is slidably connected below the plug rod 2 in the transmission part 3. The socket 6 is fixed on the outer surface of the box door 1 and is used to further limit the movement of the plug rod 2 and improve the stability of the movement of the plug rod 2.
[0023] A first handle 7 is arranged on the outer surface of the box door 1. Part of the first handle 7 is located inside one side of the transmission part 3 and is connected to the input end of the transmission mechanism inside it. A connecting rod 12 is fixedly connected inside the first handle 7. The other end of the connecting rod 12 penetrates the box door 1 and is fixedly connected to a second handle 14. Among them, a gear is penetrated and fixedly connected to one side surface of the connecting rod 12 located in the transmission part 3. The gear is meshed and connected with the above-mentioned rack. When the first handle 7 or the second handle 14 is rotated, the plug rod 2 moves correspondingly through the transmission mechanism;
[0024] In addition, the second handle 14 is arranged on the inner surface of the box door 1. A support disc 13 is connected between the second handle 14 and the box door 1 by bearings. The support disc 13 is fixedly connected to the inner surface of the box door 1 and plays a role in connecting and supporting the second handle 14;
[0025] A first rotating part 9 is arranged on one side of the first handle 7, and a first limiting block 11 is arranged on one side of the second handle 14. The first rotating part 9 and the first limiting block 11 are connected by a rod. Auxiliary blocks 15 are fixedly connected to the outer ring side of the first limiting block 11. A convex block 16 is fixed on the surface of the first limiting block 11 away from the box door 1. The convex blocks 16 at different positions are used to lock the positions with the second handle 14 in different rotation states.
[0026] In this embodiment, referring to Figure 1 、 Figure 2 the positions of the first handle 7 and the second handle 14, the downward locking position of the plug rod 2 is determined. In addition to opening the box door 1 by rotating the first handle 7 outside the box counterclockwise, the box door 1 can also be opened by rotating the second handle 14 inside the box clockwise, realizing the opening and closing of the box door 1 inside and outside the box.
[0027] When the first handle 7 rotates counterclockwise, it drives the second handle 14 to rotate synchronously, and the inserting rod 2 moves upward. To keep the upward movement position of the inserting rod 2 stationary, if a person is inside the box, with the help of the auxiliary block 15, the first limiting block 11 is driven to rotate, so that the convex block 16 rotates to the upper end of the tail of the first handle 7 and blocks the tail of the first handle 7 to prevent it from deflecting and causing the inserting rod 2 to move downward; if a person is outside the box, with the rotation of the first rotating part 9, the corresponding first limiting block 11 and convex block 16 are rotated to achieve the above effect to ensure the stability of the inserting rod 2 when it is in the upward movement position.
[0028] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.
[0029] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims
1. A door lock for a shielding box, comprising a door (1), characterized in that: A transmission part (3) is provided on one side of the outer surface of the door (1); the input end of the transmission part (3) is transmission-connected to a first handle (7), and the output end of the transmission part (3) is transmission-connected to an insertion rod (2); A connecting rod (12) is fixedly connected inside the first handle (7); the other end of the connecting rod (12) passes through the door (1) and is fixedly connected to a second handle (14); the second handle (14) is arranged on the inward surface of the door (1).
2. A door lock for a shielding box according to claim 1, characterized in that: The upper and lower sides of the transmission part (3) are respectively fixedly connected with a first plug block (4) and a second plug block (5), and the plug rod (2) passes through and connects the first plug block (4), the transmission part (3), and the second plug block (5) in sequence from top to bottom.
3. A door lock for a shielding box according to claim 1, characterized in that: The insertion rod (2) is located below the transmission part (3) and is slidably connected to an ear seat (6), and the ear seat (6) is fixed on the outward surface of the box door (1).
4. A door lock for a shielding box according to claim 1, characterized in that: A support plate (13) is bearing-connected between the second handle (14) and the cabinet door (1).
5. A door lock for a shielding box according to claim 1, characterized in that: A first rotating portion (9) is provided on one side of the first handle (7), and a first limiting block (11) is provided on one side of the second handle (14); the first rotating portion (9) and the first limiting block (11) are connected via a rod, and a protrusion (16) is fixed on one side surface of the first limiting block (11).
6. A door lock for a shielding box according to claim 5, characterized in that: One side of the outer ring of the first limiting block (11) is fixedly connected with an auxiliary block (15).