A kind of metering theft-proof electric ring main switchgear

Abstract

The utility model relates to a kind of for metering theft-preventing looped network cabinet, to solve the current looped network cabinet is only by single lock body to its cabinet door locking, to be opened by wrongdoer easily, carry out electricity theft, and the technical problem of poor theft-preventing effect, including: mechanical locking mechanism, the mechanical locking mechanism includes jack and round hole being set in the upper and lower ends of cabinet body inner chamber, the cabinet door is hinged by hinge, the inner chamber of the round hole is rotatably penetrated by driving shaft, one end of the driving shaft is fixedly connected with gear, the end of driving shaft away from gear is fixedly connected with connecting disc, unlocking hole is set in the both sides of connecting disc, the utility model has double interlocking mechanism, hidden unlocking interface and intelligent identity authentication system, not only realize the stereoscopic promotion of looped network cabinet theftproof performance, more effectively curb electricity theft risk from technology, perfect combination of safety protection and intelligent control is reflected.

Description

Technical Field

[0001] This utility model relates to the field of ring main units, specifically a ring main unit for metering and preventing electricity theft. Background Technology

[0002] A ring main unit is an electrical device consisting of a set of high-voltage switchgear installed in a metal or non-metal insulated cabinet or assembled into a modular ring main unit. Its core components are load switches and fuses. It has advantages such as simple structure, small size, low price, improved power supply parameters and performance, and enhanced power supply safety.

[0003] Traditional ring main units only use a single lock to lock their doors, making them easy for criminals to open and steal electricity, resulting in poor anti-theft performance. Therefore, a new technical solution is needed to address this issue. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology, adapt to the needs of reality, and provide a ring main unit for metering and anti-theft of electricity, so as to solve the technical problem that the current ring main unit only locks its door with a single lock body, which makes it easy for criminals to open it and steal electricity, resulting in poor anti-theft effect.

[0005] To achieve the purpose of this utility model, the technical solution adopted by this utility model is as follows: A ring main unit for metering and preventing electricity theft is designed, comprising:

[0006] A mechanical locking mechanism includes insertion holes at the upper and lower ends of the cabinet's internal cavity and a circular hole on the cabinet door. The cabinet door is hinged to the cabinet body. A drive shaft rotatably passes through the inner cavity of the circular hole. A gear is fixedly connected to one end of the drive shaft, and a connecting plate is fixedly connected to the end of the drive shaft away from the gear. Unlocking holes are provided on both sides of the connecting plate. A rack meshes on both sides of the gear. A reset mechanism is provided between one end of the rack and the cabinet door.

[0007] An electronic locking mechanism includes an electromagnet fixedly connected to the cabinet door and an iron block fixedly connected to the top of the cabinet's inner cavity. The iron block corresponds to the electromagnet. A fixed plate is rotatably connected to the end of the connecting plate away from the drive shaft via a bearing. Both ends of the fixed plate are fixedly connected to connecting blocks, and the other end of the connecting blocks is fixedly connected to the inner wall of a circular hole. A card reader is embedded in the fixed plate.

[0008] Unlocking mechanisms are used to open mechanical and electronic locking mechanisms.

[0009] Preferably, the unlocking mechanism includes an unlocking cylinder with notches at both ends. An adjustment groove is formed on both sides of one end of the inner cavity of the unlocking cylinder. An adjustment plate is slidably connected within the adjustment groove. A first spring is fixedly connected between one end of the inner cavity of the adjustment groove and the adjustment plate. Insert rods slidably pass through both ends of the inner cavity of the unlocking cylinder, with one end of the insert rod placed within the adjustment groove and fixedly connected to the adjustment plate. An IC card is disposed in the center of the inner cavity of the unlocking cylinder.

[0010] Preferably, the reset mechanism includes a connecting plate fixedly connected to the cabinet door, and a second spring fixedly connected between the connecting plate and the rack, wherein the elastic force of the second spring is greater than the weight of the rack.

[0011] Preferably, a limiting groove is provided at one end of the cabinet door near the rack, a limiting block is slidably connected in the limiting groove, and the limiting block is fixedly connected to the rack. Both the limiting groove and the limiting block are T-shaped.

[0012] Preferably, a limiting cylinder is fixedly connected to the inner wall of the unlocking cylinder, a third spring is fixedly connected to the top of the inner cavity of the limiting cylinder, and the IC card is slidably connected inside the limiting cylinder, with the bottom of the third spring fixedly connected to the IC card.

[0013] Preferably, the top of the adjusting plate extends through the outside of the adjusting groove.

[0014] Preferably, a baffle is provided on both sides of the cabinet body of the circular hole, and a baffle is provided between the two baffles. The baffle is slidably inserted into the slot at the opposite end of the two baffles.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] 1. This utility model combines a mechanical locking mechanism, an electronic locking mechanism, and an unlocking mechanism to give the ring main unit a dual interlocking mechanism, a concealed unlocking interface, and an intelligent identity authentication system. This not only achieves a three-dimensional improvement in the anti-theft performance of the ring main unit, but also effectively curbs the risk of electricity theft from a technical perspective, demonstrating a perfect combination of security protection and intelligent control. Attached Figure Description

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

[0018] Figure 2 This is a schematic diagram of the connection structure between the circular hole and the cabinet door of this utility model;

[0019] Figure 3 This is a schematic diagram of the cabinet door and rack connection structure of this utility model;

[0020] Figure 4This is a schematic diagram of the connection structure between the drive shaft, gear, and connecting disc of this utility model;

[0021] Figure 5 This is a schematic diagram of the unlocking mechanism of this utility model;

[0022] Figure 6 This is a cross-sectional view of the unlocking mechanism of this utility model;

[0023] Figure 7 This is a schematic diagram of the cabinet structure of this utility model;

[0024] Figure 8 This is an enlarged view of section A of this utility model.

[0025] In the diagram: 1. Cabinet body; 11. Cabinet door; 2. Stop bar; 21. Baffle; 3. Round hole; 31. Fixing plate; 32. Card reader; 33. Electromagnet; 34. Rack; 35. Connecting plate; 36. Second spring; 37. Gear; 38. Insertion hole; 39. Connecting block; 310. Locking hole; 311. Connecting plate; 312. Drive shaft; 313. Iron block; 4. Locking cylinder; 41. Notch; 42. Insert rod; 43. Limiting cylinder; 44. IC card; 45. Adjusting plate; 46. Adjusting groove; 47. First spring; 48. Third spring; 5. Limiting groove; 51. Limiting block. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0027] Example 1: A ring main unit for metering and preventing electricity theft, see [link / reference] Figures 1 to 8The system includes a mechanical locking mechanism, comprising insertion holes 38 at the upper and lower ends of the inner cavity of the cabinet body 1 and a circular hole 3 on the cabinet door 11. The cabinet door 11 is hinged to the cabinet body 1. A drive shaft 312 rotatably passes through the inner cavity of the circular hole 3. A gear 37 is fixedly connected to one end of the drive shaft 312, and a connecting plate 311 is fixedly connected to the end of the drive shaft 312 away from the gear 37. Unlocking holes 310 are provided on both sides of the connecting plate 311. Both sides of the wheel 37 are engaged with racks 34, which correspond to the insertion holes 38. A reset mechanism is provided between one end of the rack 34 and the cabinet door 11. An electronic locking mechanism includes an electromagnet 33 fixedly connected to the cabinet door 11 and an iron block 313 fixedly connected to the top of the inner cavity of the cabinet body 1. The iron block 313 corresponds to the electromagnet 33. The end of the connecting plate 311 away from the drive shaft 312 is rotatably connected to a fixed plate 31 via a bearing. Both ends of the fixed plate 31 are fixedly connected to connecting blocks 39, and the other end of the connecting blocks 39 is fixedly connected to the inner wall of the circular hole 3. A card reader 32 is embedded in the fixed plate 31. The card reader 32 is electrically connected to the electromagnet 33 via a control module through a wire. The size of the fixed plate 31 is larger than the size of the connecting plate 311, and the front end of the fixed plate 31 is on the same horizontal plane as the front end of the cabinet body 1. An unlocking mechanism is used to open the mechanical locking mechanism and the electronic locking mechanism. The unlocking mechanism includes an unlocking cylinder 4. The unlocking cylinder 4 has notches 41 at both ends, and adjustment grooves 46 are provided on both sides of one end of the inner cavity of the unlocking cylinder 4. An adjustment plate 45 is slidably connected in the adjustment groove 46. A first spring 47 is fixedly connected between one end of the inner cavity of the adjustment groove 46 and the adjustment plate 45. Insert rods 42 are slidably inserted through both ends of the inner cavity of the unlocking cylinder 4, and one end of the insert rod 42 is placed in the adjustment groove 46 and fixedly connected to the adjustment plate 45. An IC card 44 is provided in the middle of the inner cavity of the unlocking cylinder 4.

[0028] During operation, when the cabinet door 11 is closed, the rack 34 precisely inserts into the socket 38 to complete the primary mechanical locking. Simultaneously, the electromagnet 33 and the iron block 313 are in close contact, generating a strong magnetic attraction after being energized to form a secondary electronic lock. This dual locking mechanism significantly enhances the anti-theft performance of the cabinet door 11. To open the cabinet door 11, the special unlocking cylinder 4 must be inserted into the round hole 3 and fitted with the fixing plate 31. Under the elastic force of the first spring 47, the insertion rod 42 automatically positions itself and inserts into the unlocking hole 310. Rotating the unlocking cylinder 4 drives the gear 37 via the drive shaft 312, causing the rack 34 to smoothly exit the socket 38. At this time, the IC card 44 contacts the card reader 32, and the card reader 32 reads the card information (such as card number and encrypted data). The card reader 32 sends the read data to the control module for authorization verification (the card reader 32 reads the IC card 44 and then cuts off the power, which is a well-known technology and will not be elaborated on here). After successful verification, the control module cuts off the power supply to the electromagnet 33 (the electromagnet 33 loses its magnetism after being de-energized), thereby enabling the cabinet door 11 to be opened. Through the combination of the double locking mechanism, the hidden unlocking mechanism and the specific unlocking mechanism, the anti-theft effect of the cabinet 1 is improved and the risk of electricity theft from the ring network cabinet is reduced. When the cabinet door 11 is closed, a door magnetic sensor is installed on the electromagnet 33. When the door magnetic sensor detects that the cabinet door 11 is closed, the control module is powered on again, the electromagnet 33 regains its magnetism, and attracts the iron block 313, thus locking the cabinet door 11.

[0029] For details, see Figure 3 The reset mechanism includes a connecting plate 35 fixedly connected to the cabinet door 11. A second spring 36 is fixedly connected between the connecting plate 35 and the rack 34. The elastic force of the second spring 36 is greater than the weight of the rack 34. When the rotating unlocking cylinder 4 drives the gear 37 through the drive shaft 312 to smoothly exit the insertion hole 38, the rack 34 compresses the second spring 36. After unlocking, the elastic force of the second spring 36 pushes the rack 34 to reset, which facilitates the relocking of the cabinet door 11 after it has been opened.

[0030] Further, see Figure 8 A limiting groove 5 is provided at one end of the cabinet door 11 near the rack 34. A limiting block 51 is slidably connected in the limiting groove 5, and the limiting block 51 is fixedly connected to the rack 34. Both the limiting groove 5 and the limiting block 51 are T-shaped. The limiting block 51 guides the movement within the limiting groove 5, thereby improving the stability of the movement of the rack 34 and thus improving the stability of the rack 34 locking the cabinet door 11.

[0031] It is worth noting that, see Figure 5 and Figure 6The inner wall of the unlocking cylinder 4 is fixedly connected to a limiting cylinder 43. A third spring 48 is fixedly connected to the top of the inner cavity of the limiting cylinder 43, and the IC card 44 is slidably connected inside the limiting cylinder 43. The bottom of the third spring 48 is fixedly connected to the IC card 44. When the unlocking cylinder 4 is inserted into the round hole 3, the third spring 48 can buffer the force of the IC card 44 contacting the fixed plate 31, effectively protecting the IC card 44. Furthermore, the elastic force of the third spring 48 pushes the IC card 44 into precise contact with the card reader 32, ensuring that the card reader 32 can read the information of the IC card 44.

[0032] It is worth noting that, see Figure 6 The top of the adjustment plate 45 extends through the outside of the adjustment groove 46, making it easy for personnel to manually adjust the insertion rod 42 to disengage from the lock hole 310 and remove the unlocking cylinder 4 from the round hole 3.

[0033] It is worth mentioning that, see Figure 1 and Figure 2 The cabinet body 1 on both sides of the circular hole 3 is provided with a baffle 2, and a baffle 21 is provided between the two baffles 2. The baffle 21 is slidably inserted into the slot at the opposite end of the two baffles 2. The baffle 21 can block the circular hole 3 to prevent a large amount of dust and impurities from accumulating in the circular hole 3 and affecting the insertion of the unlocking cylinder 4.

[0034] In addition, all components designed in this utility model are general standard parts or components known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods. Those skilled in the art can fully implement them, so there is no need to elaborate. The content protected by this utility model does not involve improvements to the internal structure and method.

[0035] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. A ring main unit for metering and preventing electricity theft, characterized in that, include: A mechanical locking mechanism is provided, comprising insertion holes (38) at the upper and lower ends of the inner cavity of the cabinet (1) and a round hole (3) on the cabinet door (11). The cabinet door (11) is hinged to the cabinet (1). A drive shaft (312) is rotatably passed through the inner cavity of the round hole (3). A gear (37) is fixedly connected to one end of the drive shaft (312). A connecting plate (311) is fixedly connected to the end of the drive shaft (312) away from the gear (37). Unlocking holes (310) are provided on both sides of the connecting plate (311). A rack (34) meshes on both sides of the gear (37). A reset mechanism is provided between one end of the rack (34) and the cabinet door (11). An electronic locking mechanism is provided, comprising an electromagnet (33) fixedly connected to the cabinet door (11) and an iron block (313) fixedly connected to the top of the inner cavity of the cabinet (1). The iron block (313) corresponds to the electromagnet (33). The end of the connecting plate (311) away from the drive shaft (312) is rotatably connected to a fixed plate (31) via a bearing. Both ends of the fixed plate (31) are fixedly connected to connecting blocks (39), and the other end of the connecting blocks (39) is fixedly connected to the inner wall of the round hole (3). A card reader (32) is embedded in the fixed plate (31). Unlocking mechanisms are used to open mechanical and electronic locking mechanisms.

2. A ring main unit for metering and preventing electricity theft as described in claim 1, characterized in that, The unlocking mechanism includes an unlocking cylinder (4), with notches (41) at both ends of the unlocking cylinder (4). An adjustment groove (46) is provided on both sides of one end of the inner cavity of the unlocking cylinder (4). An adjustment plate (45) is slidably connected in the adjustment groove (46). A first spring (47) is fixedly connected between one end of the inner cavity of the adjustment groove (46) and the adjustment plate (45). A plug rod (42) is slidably passed through both ends of the inner cavity of the unlocking cylinder (4), and one end of the plug rod (42) is placed in the adjustment groove (46) and fixedly connected to the adjustment plate (45). An IC card (44) is provided in the middle of the inner cavity of the unlocking cylinder (4).

3. A ring main unit for metering and preventing electricity theft as described in claim 1, characterized in that, The reset mechanism includes a connecting plate (35) fixedly connected to the cabinet door (11), and a second spring (36) fixedly connected between the connecting plate (35) and the rack (34). The elastic force of the second spring (36) is greater than the weight of the rack (34).

4. A ring main unit for metering and preventing electricity theft as described in claim 1, characterized in that, The cabinet door (11) has a limiting groove (5) at one end near the rack (34). A limiting block (51) is slidably connected in the limiting groove (5), and the limiting block (51) is fixedly connected to the rack (34). Both the limiting groove (5) and the limiting block (51) are T-shaped.

5. A ring main unit for metering and preventing electricity theft as described in claim 2, characterized in that, The inner wall of the unlocking cylinder (4) is fixedly connected to a limiting cylinder (43), and a third spring (48) is fixedly connected to the top of the inner cavity of the limiting cylinder (43). The IC card (44) is slidably connected inside the limiting cylinder (43), and the bottom of the third spring (48) is fixedly connected to the IC card (44).

6. A ring main unit for metering and preventing electricity theft as described in claim 2, characterized in that, The top of the adjusting plate (45) extends through the outside of the adjusting groove (46).

7. A ring main unit for metering and preventing electricity theft as described in claim 1, characterized in that, A baffle (2) is provided on both sides of the cabinet (1) of the circular hole (3), and a baffle (21) is provided between the two baffles (2). The baffle (21) is slidably inserted into the slot at the opposite end of the two baffles (2).

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