Power distribution cabinet with anti-theft locking mechanism
By introducing fastening and protection mechanisms into the distribution cabinet and utilizing components such as end plates, side plates, positioning pins, and dual-axis motors, the problem of distribution cabinets being easily damaged by violence has been solved, achieving higher anti-theft performance and lock stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUBEI ETAI ELECTRIC CO LTD
- Filing Date
- 2025-07-16
- Publication Date
- 2026-07-14
Smart Images

Figure CN224502685U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of power distribution cabinet technology, and in particular to a power distribution cabinet with an anti-theft locking mechanism. Background Technology
[0002] A power distribution cabinet is a metal enclosure used to centrally install power distribution, control, and protection equipment. It is widely used in industrial, commercial, and public facilities. It typically contains electrical components such as circuit breakers, contactors, and meters to safely distribute electrical energy and achieve circuit control.
[0003] Currently, the cabinet doors of power distribution cabinets typically adopt a single-sided hinged design with a single-point door lock. That is, one side of the cabinet door is connected to the cabinet body by a hinge or hinge, and the other side is equipped with a mechanical lock or electronic lock. The lock is achieved by inserting the lock tongue into the lock hole of the cabinet frame. This design is simple, low-cost, and easy to operate and maintain, and is the standard configuration of most power distribution cabinets.
[0004] However, since the cabinet door is only partially connected to the cabinet body by the latch, and the contact area between the latch and the keyhole is small, coupled with the fact that the cabinet body of the power distribution cabinet is mostly made of thin steel plate bent into shape, the overall structural strength is limited. When subjected to external force, the sheet metal around the latch or keyhole is prone to plastic deformation, which can lead to the latch disengaging or the lock being damaged, thus making it impossible for the cabinet door to close effectively. This defect makes the power distribution cabinet vulnerable to violent damage, and the internal equipment is at risk of being stolen. Therefore, a power distribution cabinet with an anti-theft locking mechanism is proposed to solve the above problems. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a power distribution cabinet with an anti-theft locking mechanism, which aims to improve the problem mentioned in the prior art that "the power distribution cabinet cannot effectively ensure the stable locking of the cabinet door by relying solely on the door lock".
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a power distribution cabinet with an anti-theft locking mechanism, comprising a cabinet body and a cabinet door, one side of the cabinet door being hinged to the outer wall of the cabinet body, the other side of the cabinet door being fixedly connected to a door lock, a fastening mechanism being provided on the inner side of the cabinet door, and a protective mechanism being provided on the outer side of the cabinet door.
[0007] The fastening mechanism includes an end plate slidably connected to the inner wall of the cabinet door. A side plate is slidably connected to the inner wall of the cabinet door. A fixing rod is fixedly connected to the inner wall of the cabinet. A positioning pin is fixedly connected to the side plate and the end plate on the side near the fixing rod. A positioning hole for the positioning pin to be inserted is provided on the fixing rod. Connecting rods are hinged to both ends of the side plate. A threaded sleeve is fixedly connected to the side wall of the end plate. A dual-axis motor is fixedly connected to the inner wall of the cabinet door. A threaded rod is fixedly connected to the output shaft of the dual-axis motor.
[0008] As a further description of the above technical solution:
[0009] The protective mechanism includes a pivot that passes through and is rotatably connected to the inner wall of the cabinet door.
[0010] As a further description of the above technical solution:
[0011] A baffle is fixedly connected to one end of the rotating shaft, and a worm gear is fixedly connected to the other end of the rotating shaft.
[0012] As a further description of the above technical solution:
[0013] A worm gear is fixedly connected to the outer wall of the threaded rod at the bottom of the dual-axis motor, and the worm gear meshes with a worm wheel.
[0014] As a further description of the above technical solution:
[0015] The end of the connecting rod furthest from the end plate is hinged to the side wall of the side plate.
[0016] As a further description of the above technical solution:
[0017] The fixing rods are provided in four sets, which are located around the inner wall of the cabinet. The fixing rods at the top and bottom of the inner wall of the cabinet are of equal size, and the fixing rods on the left and right sides of the inner wall of the cabinet are of equal size.
[0018] As a further description of the above technical solution:
[0019] The threaded rod is threadedly connected to the threaded sleeve.
[0020] As a further description of the above technical solution:
[0021] Both ends of the dual-axis motor are fixedly connected to threaded rods, and the threads of the two sets of threaded rods face opposite directions.
[0022] This utility model has the following beneficial effects:
[0023] 1. In this utility model, by setting up a fastening mechanism, when the cabinet door is forcibly opened by external force, the external force can be evenly distributed around the cabinet body, preventing the external force from concentrating at the connection between the door lock and the cabinet body, which could cause the door lock connection to loosen. This can improve the fastening of the cabinet door and the anti-theft effect of the cabinet body.
[0024] 2. In this utility model, by setting up a protective mechanism, the keyhole of the door lock can be blocked after the fastening mechanism locks the cabinet door, preventing someone from prying the lock cylinder and causing the door lock to fail, thereby ensuring the effective locking of the cabinet door. Attached Figure Description
[0025] Figure 1This is a schematic diagram of the overall structure of this utility model;
[0026] Figure 2 This is a cross-sectional structural diagram of the cabinet body of this utility model;
[0027] Figure 3 This is a schematic diagram of the internal structure of the cabinet with the door of this utility model open.
[0028] Figure 4 This is a schematic diagram of the external structure of the cabinet body with the cabinet door open.
[0029] Legend:
[0030] 1. Cabinet body; 2. Cabinet door; 3. Door lock; 4. Fastening mechanism; 41. End plate; 42. Side plate; 43. Positioning pin; 44. Fixing rod; 45. Positioning hole; 46. Connecting rod; 47. Threaded sleeve; 48. Dual-axis motor; 49. Threaded rod; 5. Protective mechanism; 51. Rotating shaft; 52. Baffle; 53. Worm gear; 54. Worm. Detailed Implementation
[0031] 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.
[0032] Reference Figures 1-3 An embodiment of this utility model is provided: a power distribution cabinet with an anti-theft locking mechanism, including a cabinet body 1 and a cabinet door 2. One side of the cabinet door 2 is hinged to the outer wall of the cabinet body 1, and the other side of the cabinet door 2 is fixedly connected to a door lock 3. The door lock 3 can be a mechanical lock. A fastening mechanism 4 is provided on the inner side of the cabinet door 2, and a protective mechanism 5 is provided on the outer side of the cabinet door 2.
[0033] Reference Figures 2-3The fastening mechanism 4 includes an end plate 41, which is slidably connected to the inner wall of the cabinet door 2. A side plate 42 is slidably connected to the inner wall of the cabinet door 2. When the two sets of end plates 41 move away from each other, the two sets of end plates 41 can drive the positioning pins 43 on their outer walls to insert into the positioning holes 45 opened on the fixing rods 44 at the upper and lower ends of the cabinet body 1. The inner wall of the cabinet body 1 is fixedly connected to four sets of fixing rods 44, which are located around the inner wall of the cabinet body 1. When the cabinet door 2 is forcibly opened by external force... When the end plate 41, side plate 42, positioning pin 43, and fixing rod 44 are engaged, the external force can be evenly distributed around the cabinet 1. The fixing rods 44 at the top and bottom of the inner wall of the cabinet 1 are of equal size, and the fixing rods 44 on the left and right sides of the inner wall of the cabinet 1 are of equal size. Positioning pins 43 are fixedly connected to the side plate 42 and the end plate 41 on the side closest to the fixing rod 44. When the two sets of side plates 42 move away from each other, the two sets of side plates 42 will drive the positioning pins 43 on their outer walls to insert into the fixing rods 44 on the left and right sides of the cabinet 1 respectively. Inside the positioning hole 45, the fixing rod 44 has a positioning hole 45 for the positioning pin 43 to be inserted. Both ends of the side plate 42 are hinged with connecting rods 46. The end of the connecting rod 46 away from the end plate 41 is hinged to the side wall of the side plate 42. As the two sets of end plates 41 move away from each other, the connecting rods 46 can drive the two sets of side plates 42 inside the cabinet door 2 to slide synchronously in opposite directions and move away from each other. A threaded sleeve 47 is fixedly connected to the side wall of the end plate 41. A dual-axis motor 48 is fixedly connected to the inner wall of the cabinet door 2. The output shaft of the dual-axis motor 48 is fixedly connected to a threaded rod 49. Starting the dual-axis motor 48 can drive the two sets of threaded rods 49 to rotate. Both ends of the dual-axis motor 48 are fixedly connected to threaded rods 49, and the threads of the two sets of threaded rods 49 are in opposite directions. The threaded rods 49 are threadedly connected to the threaded sleeves 47. Since the threads of the two sets of threaded rods 49 are in opposite directions, the threaded rods 49 can drive the two sets of end plates 41 to slide synchronously in opposite directions on the inner wall of the cabinet door 2 while rotating, in conjunction with the threaded sleeves 47 that mesh with them.
[0034] Reference Figures 2-4 The protective mechanism 5 includes a rotating shaft 51, which is rotatably connected to the inner wall of the cabinet door 2. One end of the rotating shaft 51 is fixedly connected to a baffle 52. The rotation of the rotating shaft 51 can drive the baffle 52 to block the keyhole of the door lock 3, preventing someone from prying the lock cylinder and causing the door lock 3 to fail. The other end of the rotating shaft 51 is fixedly connected to a worm gear 53. When the worm gear 53 rotates, it will drive the rotating shaft 51 to rotate synchronously on the inner wall of the cabinet door 2. The threaded rod 49 at the bottom of the dual-axis motor 48 is fixedly connected to a worm 54. When the threaded rod 49 located below the dual-axis motor 48 rotates, it will drive the worm 54 to rotate synchronously. The worm 54 meshes with the worm gear 53. When the worm 54 rotates, it will drive the worm gear 53 that meshes with it to rotate.
[0035] Working principle: In use, first close the cabinet door 2 and lock the door lock 3 with the key. Then, start the dual-axis motor 48 to drive the two sets of threaded rods 49 to rotate. Since the threads of the two sets of threaded rods 49 are facing opposite directions, the threaded rods 49, while rotating, can drive the two sets of end plates 41 to slide synchronously in opposite directions on the inner wall of the cabinet door 2, causing the two sets of end plates 41 to move away from each other. At the same time, the two sets of end plates 41 will drive the positioning pins 43 on their outer walls to insert into the positioning holes 45 opened on the fixing rods 44 at the upper and lower ends of the cabinet body 1, respectively. Simultaneously, as the two sets of end plates 41 move away from each other, they will push the connecting rod 46, causing the connecting rod 46 to push the side plates 42. At this time, the two sets of side plates 42 on the inner side of the cabinet door 2 will slide synchronously and move away from each other, while the two sets of side plates 42 will drive the two sets of end plates 41 to slide synchronously and move away from each other. The positioning pins 43 on the outer wall are inserted into the positioning holes 45 on the fixing rods 44 on the left and right sides of the cabinet body 1. At this time, the side plate 42, together with the positioning pins 43 and the fixing rods 44 on the left and right sides of the inner wall of the cabinet body 1, can limit the left and right sides of the cabinet door 2. At the same time, the end plate 41, together with the positioning pins 43 and the fixing rods 44 at the upper and lower ends of the inner wall of the cabinet body 1, can limit the upper and lower ends of the cabinet door 2. Thus, the cabinet door 2 is locked on all four sides. When the cabinet door 2 is forcibly opened by external force, the external force can be evenly distributed on all four sides of the cabinet body 1 through the cooperation of the end plate 41, side plate 42, positioning pins 43 and fixing rods 44. This prevents the external force from being concentrated at the connection between the door lock 3 and the cabinet body 1, which could cause the connection of the door lock 3 to loosen. This can improve the tightness of the cabinet door 2 and the anti-theft effect of the cabinet body 1.
[0036] When the two sets of threaded rods 49 rotate and work with the threaded sleeve 47 to drive the two sets of end plates 41 away from each other, the threaded rod 49 located below the dual-axis motor 48 will drive the worm gear 54 to rotate synchronously. When the worm gear 54 rotates, it will drive the worm wheel 53 meshing with it to rotate. When the worm wheel 53 rotates, it will drive the rotating shaft 51 to rotate synchronously on the inner wall of the cabinet door 2. At the same time, when the rotating shaft 51 rotates, it will drive the baffle 52 to swing upward around the axis of the rotating shaft 51. By swinging the baffle 52 upward, the keyhole of the door lock 3 can be blocked to prevent someone from prying the lock cylinder and causing the door lock 3 to fail, thereby ensuring the effective locking of the cabinet door 2.
[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A power distribution cabinet with an anti-theft locking mechanism, comprising a cabinet body (1) and a cabinet door (2), characterized in that: One side of the cabinet door (2) is hinged to the outer wall of the cabinet body (1), and the other side of the cabinet door (2) is fixedly connected to a door lock (3). A fastening mechanism (4) is provided on the inner side of the cabinet door (2), and a protective mechanism (5) is provided on the outer side of the cabinet door (2). The fastening mechanism (4) includes an end plate (41), which is slidably connected to the inner wall of the cabinet door (2). The inner wall of the cabinet door (2) is slidably connected to a side plate (42). The inner wall of the cabinet body (1) is fixedly connected to a fixing rod (44). The side plate (42) and the end plate (41) are both fixedly connected to the side of the fixing rod (44) with a positioning pin (43). The fixing rod (44) has a positioning hole (45) for the positioning pin (43) to be inserted. The left and right ends of the side plate (42) are hinged with connecting rods (46). The side wall of the end plate (41) is fixedly connected to a threaded sleeve (47). The inner wall of the cabinet door (2) is fixedly connected to a dual-axis motor (48). The output shaft of the dual-axis motor (48) is fixedly connected to a threaded rod (49).
2. A power distribution cabinet with an anti-theft locking mechanism according to claim 1, characterized in that: The protective mechanism (5) includes a pivot (51) which is rotatably connected to the inner wall of the cabinet door (2).
3. A power distribution cabinet with an anti-theft locking mechanism according to claim 2, characterized in that: A baffle (52) is fixedly connected to one end of the rotating shaft (51), and a worm gear (53) is fixedly connected to the other end of the rotating shaft (51).
4. A power distribution cabinet with an anti-theft locking mechanism according to claim 1, characterized in that: A worm (54) is fixedly connected to the outer wall of the threaded rod (49) at the bottom of the dual-axis motor (48), and the worm (54) meshes with the worm wheel (53).
5. A power distribution cabinet with an anti-theft locking mechanism according to claim 1, characterized in that: The end of the connecting rod (46) away from the end plate (41) is hinged to the side wall of the side plate (42).
6. A power distribution cabinet with an anti-theft locking mechanism according to claim 1, characterized in that: The fixing rod (44) is provided in four sets. The four sets of fixing rod (44) are located around the inner wall of the cabinet (1). The fixing rod (44) at the upper and lower ends of the inner wall of the cabinet (1) is of equal size, and the fixing rod (44) on the left and right sides of the inner wall of the cabinet (1) is of equal size.
7. A power distribution cabinet with an anti-theft locking mechanism according to claim 1, characterized in that: The threaded rod (49) is threadedly connected to the threaded sleeve (47).
8. A power distribution cabinet with an anti-theft locking mechanism according to claim 1, characterized in that: Both ends of the dual-axis motor (48) are fixedly connected to threaded rods (49), and the threads of the two sets of threaded rods (49) are oriented in opposite directions.