A remote control and orientation device for a distribution network automation terminal DTU

Abstract

The present invention provides a remote control and orientation device for a distribution network automation terminal DTU, which includes a base, a lock core arranged on the base, and a housing. The housing is rotationally connected to the base, and a limit baffle for cooperating with the "local / remote" button is arranged inside the housing. A slot for the tongue of the lock core to move is arranged on the base, and the tongue is connected to the lock core. In the present invention, through the authorization of an electronic key, the rotation motor is controlled to drive the swing arm to rotate, and then the second rotating member can be rotated, further improving the safety; the first rotating member drives the second rotating member to rotate, and the second rotating member drives the third rotating member to rotate. Through multiple linkages, the safety of the lock is increased; the unlocking records are mastered in real time through the magnetic induction sensor, thereby increasing the safety of the lock; the housing and the third rotating member are linked through the limit shaft, thereby increasing the safety.

Description

Technical Field

[0001] The present invention relates to the technical field of locks, and in particular to a remote control and orientation device for a distribution network automation terminal DTU. Background Art

[0002] In order to improve the anti-theft performance of locks, locks with electromagnetic and mechanical dual control have emerged in the prior art. However, the electromagnetic control and mechanical control of the above locks can only be used separately, and the anti-theft performance has not been significantly improved. Moreover, their structures are too complex, the reliability is low, and the installation and use are also inconvenient.

[0003] In the patent document "An Electronic Cabinet Lock and Its Control Method" disclosed in the patent with the patent number CN201610043462.0, by utilizing the characteristics of a self-holding electromagnet and cooperating with an unlocking member (a clamping plate in the document) in the mechanical unlocking structure, the electronic lock has the functions of daily automatic unlocking and the key can only be opened when the lock fails. However, the iron core (a bearing in the document) of the self-holding electromagnet of this cabinet lock is directly interlocked and cooperated with the unlocking member, resulting in unreasonable structural design and insufficient anti-prying performance.

[0004] Secondly, the "local / remote" buttons of the existing 10kV switch cabinets have no protection and operation restrictions, and can be operated arbitrarily and stay in the "local" or "remote" position. If they do not stay in the "remote" position, the automation system cannot perform "remote control" operations on the switch cabinets. Summary of the Invention

[0005] In view of the deficiencies of the prior art, the present invention provides a remote control and orientation device for a distribution network automation terminal DTU.

[0006] The technical solution of the present invention is as follows: A remote control and orientation device for a distribution network automation terminal DTU, including a base, a lock core and a housing arranged on the base. The housing is rotatably connected to the base, and a limit baffle for cooperating with the "local / remote" button is arranged in the housing. A slot for the tongue of the lock core to move is arranged on the base, and the tongue is connected to the lock core.

[0007] On the side wall of the housing at the upper end of the slot, an extension block is arranged. The extension block extends towards the lock core, and a plurality of first magnets are arranged in the extension block. At the lower end of the extension block, a T-shaped arc block for cooperating with the extension block is also arranged. Second magnets and springs for cooperating with the first magnets are arranged on the T-shaped arc block. When the housing is opened, since the housing is far from the T-shaped arc block, the T-shaped arc block drops and is clamped in the slot, and the tongue of the lock core cannot move, so that the key cannot be pulled out. When the outer shell of the lock core is covered, due to the action of the first magnet and the second magnet, the T-shaped arc block is sucked up, so that the tongue can move in the slot.

[0008] Preferably, a polygonal opening is provided on the housing, and a transparent cover is provided on the polygonal opening. The transparent cover is rotatably connected to the housing through a rotating shaft, and a limiting baffle for cooperating with the "local / remote" button is provided at the lower end of the transparent cover.

[0009] Preferably, the lock core includes a lock core housing, a first rotating member, a second rotating member, a third rotating member, a rotating motor, and a swing arm disposed within the lock core housing. The lower end of the first rotating member is engaged with the second rotating member, and the second rotating member can be driven to rotate during the rotation of the first rotating member.

[0010] The lower end of the second rotating member is engaged with the third rotating member, and the third rotating member can be driven to rotate during the rotation of the second rotating member.

[0011] A pin shaft is provided on the inner side wall of the first rotating member. The pin shaft drives the first rotating member to rotate by cooperating with the key.

[0012] A circuit board is provided within the second rotating member. The circuit board is electrically connected to the rotating motor, and the rotating motor passes downward through the second rotating member and is connected to the swing arm at the lower end of the second rotating member.

[0013] The swing arm is disposed within the groove at the lower end of the second rotating member, and notches for the swing of the swing arm are further provided within the second rotating member at both ends of the groove.

[0014] Two thumbtacks are also welded on the circuit board. The two thumbtacks pass upward through the first rotating member and partially expose the first rotating member to contact the key.

[0015] A stop block for cooperating with the swing arm is provided on the inner side of the third rotating member, and a bolt is connected to the lower end of the third rotating member.

[0016] Preferably, the first rotating member has a circular structure, and a slot for inserting the key is further provided on the first rotating member. A boss is further provided within the slot. The thumbtack passes upward through the boss and contacts the key. The two thumbtacks serve as positive and negative electrodes respectively. When the key contacts the two thumbtacks, the circuit board controls the rotating motor to act, thereby controlling the rotation of the swing arm.

[0017] Preferably, two card slots for cooperating with the second rotating member are symmetrically provided at the lower end of the first rotating member.

[0018] Preferably, the second rotating member has a disc-shaped structure, and two convex blocks for cooperating with the card slots of the first rotating member are further provided at the upper end of the second rotating member.

[0019] Preferably, a stepped cutting groove for cooperating with the third rotating member is further provided on the outer side wall of the second rotating member.

[0020] Preferably, an arc-shaped strip groove is provided on the tongue, and the tongue is cooperatively connected with a pin shaft arranged at the lower end of the third rotating member.

[0021] Preferably, a vertical groove is further formed in the inner side wall of the lock core housing in the vertical direction. A limiting shaft is arranged in the vertical groove, and a U-shaped groove for accommodating the limiting shaft in cooperation is further formed on the side wall of the third rotating member. An arc-shaped groove for cooperating with the limiting shaft is formed on the outer side wall of the second rotating member.

[0022] Preferably, a notch is provided at the lower end of the base, and the connection with the cabinet body can be realized by filling glue in the notch.

[0023] The beneficial effects of the present invention are as follows:

[0024] 1. The present invention utilizes the cooperation of the housing, the T-shaped arc block, and the tongue to realize the telescoping of the tongue. At the same time, by using the mutual cooperation of the limiting baffle and the button, the above technical problems are solved. Only when the button is turned to the corresponding position, the button will not block the limiting baffle, and the housing can be tightly covered. After the housing is tightly covered, due to the action of the first magnet and the second magnet, the T-shaped arc block is attracted, and after the T-shaped arc block is attracted, the tongue can move in the slot, so that the key can be pulled out, thus solving the above technical problems.

[0025] 2. The structure of the present invention is simple and has strong practicability. The present invention authorizes through an electronic key, thereby controlling the rotation of the swing arm by controlling the rotating motor, and then the second rotating member can be rotated, further improving the safety;

[0026] 3. The present invention drives the second rotating member to rotate through the first rotating member, and drives the third rotating member to rotate through the second rotating member. Through multiple linkages, the safety of the lock is increased;

[0027] 4. The present invention can master the unlocking records in real time through the magnetic induction sensor, thereby increasing the safety of the lock and ensuring whether the staff really unlocks;

[0028] 5. The present invention links the housing and the third rotating member through the limiting shaft, thereby increasing the safety; BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 is a schematic structural diagram of the present invention;

[0030] Figure 2 is a schematic structural diagram of the housing of the present invention;

[0031] Figure 3 Structural schematic diagram of the lock core of the present invention;

[0032] Figure 4 Another structural schematic diagram of the lock core of the present invention;

[0033] Figure 5 Structural schematic diagram of the lock core after the lock core housing of the present invention;

[0034] Figure 6 Structural schematic diagram of the first rotating member of the present invention;

[0035] Figure 7 Structural schematic diagram of the lock core after hiding the first rotating member of the present invention;

[0036] Figure 8 Structural schematic diagram of the second rotating member of the present invention;

[0037] Figure 9 Structural schematic diagram of the bottom surface of the second rotating member of the present invention;

[0038] Figure 10 Structural schematic diagram of the third rotating member of the present invention;

[0039] Figure 11 Structural schematic diagram of the bottom surface of the third rotating member of the present invention;

[0040] Figure 12 Another structural schematic diagram of the housing of the present invention;

[0041] Figure 13 Structural schematic diagram of the transparent cover of the present invention;

[0042] Figure 14 Structural schematic diagram of the T-shaped arc block of the present invention;

[0043] Figure 15 Structural schematic diagram of the base of the present invention;

[0044] In the figure,

[0045] 1 - Base, 2 - Lock core, 3 - Bolt, 4 - Housing, 5 - T-shaped arc block;

[0046] 11 - Extension block, 12 - Slot, 13 - Transparent cover, 14 - Limit baffle;

[0047] 20 - Lock core housing, 21 - First rotating member, 22 - Second rotating member, 23 - Third rotating member, 24 - Rotating motor, 25 - Swing arm, 26 - Circuit board, 27 - Thumb latch, 28 - Pin shaft, 29 - Limit shaft,

[0048] 211 - Slot, 212 - Boss, 213 - Card slot;

[0049] 221 - Bump, 222 - Step cutting groove, 223 - Arc groove, 224 - Groove;

[0050] 231 - U - shaped groove, 232 - Stop block;

[0051] 31 - Strip groove; Specific embodiments

[0052] The following further describes the specific embodiments of the present invention in conjunction with the accompanying drawings:

[0053] As Figure 1 shown, this embodiment provides a distribution network automation terminal DTU remote control orientation device, including a base 1, a lock core 2 disposed on the base 1, and a housing 4. The housing 4 is rotatably connected to the base 1, and a limit baffle 14 for cooperating with the "local / remote" button is disposed inside the housing 4. As Figure 15 shown, a slot 12 for the tongue 3 to move is provided on the base 1, and the tongue 3 is connected to the lock core 2; on the side wall of the housing 4 at the upper end of the slot 12, an extension block 11 is provided. The extension block 11 extends towards the lock core 2, and a plurality of first magnets are disposed inside the extension block 11; a T - shaped arc block 5 for cooperating with the extension block 11 is further disposed in the slot 12 at the lower end of the extension block 11. Second magnets and springs for cooperating with the first magnets are disposed on the T - shaped arc block 5. When the housing 4 is opened, since the housing 4 is away from the T - shaped arc block 5, the T - shaped arc block 5 drops and is clamped in the slot 12, so that the tongue 3 of the lock core 2 cannot continue to move in the slot 12, resulting in the key being unable to be pulled out. When the lock core housing 4 is covered, due to the attraction between the first magnet and the second magnet, the T - shaped arc block 5 is sucked upwards, so that the T - shaped arc block 5 is away from the slot 12, and thus the tongue 3 can move in the slot 12.

[0054] This embodiment utilizes the mutual cooperation between the limit baffle 14 and the button. Only when the button is turned to the corresponding position, the button will not block the limit baffle 14, and the housing 4 can be tightly covered. After the housing 4 is tightly covered, due to the action of the first magnet and the second magnet, the T - shaped arc block 5 is sucked up. After the T - shaped arc block 5 is sucked up, the tongue 3 can move in the slot 12, and then the key can be pulled out, thus solving the above - mentioned technical problems.

[0055] As a preference of this embodiment, as Figure 2 、 12 、13 shown, a polygonal opening is provided on the housing 4, and a transparent cover 13 is covered on the polygonal opening. The transparent cover 13 is rotatably connected to the housing 4 through a rotating shaft, and a limit baffle 14 for cooperating with the "local / remote" button is disposed at the lower end of the transparent cover 13.

[0056] Preferably, in this embodiment, as shown in Figure 3 - 11 , the lock core 2 includes a lock core housing 20, a first rotating member 21, a second rotating member 22, a third rotating member 23, a rotating motor 24, and a swing arm 25 disposed within the lock core housing 20. The lower end of the first rotating member 21 is snap-connected to the second rotating member 22, and the first rotating member 21 can drive the second rotating member 22 to rotate during the rotation process. The lower end of the second rotating member 22 is snap-connected to the third rotating member 23, and the second rotating member 22 can drive the third rotating member 23 to rotate during the rotation process.

[0057] Preferably, in this embodiment, as shown in Figure 3 , 4 , 5, a pin shaft 28 is provided on the inner side wall of the first rotating member 21. The pin shaft 28 cooperates with the key to drive the first rotating member 21 to rotate.

[0058] Preferably, in this embodiment, as shown in Figure 7 , a circuit board 26 is provided within the second rotating member 22. The circuit board 26 is electrically connected to the rotating motor 24, and the rotating motor 24 passes downward through the second rotating member 22 and is connected to the swing arm 25 at the lower end of the second rotating member 22. Among them, as shown in Figure 9 , the swing arm 25 is disposed within the groove 224 at the lower end of the second rotating member 22, and notches for the swing of the swing arm 25 are further provided within the second rotating member 22 at both ends of the groove 224.

[0059] Two thimble pins 27 are also welded on the circuit board 26. The two thimble pins 27 pass upward through the first rotating member 21 and partially expose the first rotating member 21 to contact the key.

[0060] Preferably, in this embodiment, a stopper 232 for cooperating with the swing arm 25 is provided on the inner side of the third rotating member 23. Refer to Figure 10 shown, and the lower end of the third rotating member 23 is connected to a bolt 3.

[0061] Preferably, in this embodiment, as shown in Figure 6 , the first rotating member 21 is of a circular structure, and a slot 211 for inserting the key is further provided on the first rotating member 21. A boss 212 is further provided within the slot 21. The thimble pins 27 pass upward through the boss 212 and contact the key. In this embodiment, the two thimble pins 27 respectively serve as positive and negative electrodes; when the key contacts the two thimble pins 27, the key authorizes and powers on the circuit board 26. The powered-on circuit board 26 controls the operation of the rotating motor 24, thereby controlling the rotation of the swing arm 25, so that the swing arm 25 moves away from the stopper 232 of the third rotating member 23. The pin shaft 28 is provided on the inner side wall of the slot 211.

[0062] Preferably in this embodiment, two card slots 213 for cooperating with the second rotating member 22 are symmetrically arranged at the lower end of the first rotating member 21.

[0063] Preferably in this embodiment, as Figure 8 shown, the second rotating member 22 is of a disc-shaped structure, and two protrusions 221 for cooperating with the card slots 213 of the first rotating member 21 are arranged at the upper end of the second rotating member 22.

[0064] Preferably in this embodiment, as Figure 8 shown, a stepped cutting groove 222 for cooperating with the third rotating member 23 is further arranged on the outer side wall of the second rotating member 22.

[0065] Preferably in this embodiment, as Figure 11 shown, an arc-shaped strip groove 31 is arranged on the tongue 3, and the tongue 3 is cooperatively connected with a pin shaft arranged at the lower end of the third rotating member 23.

[0066] Preferably in this embodiment, a vertical groove is further opened on the inner side wall of the lock core housing 20 along the vertical direction. A limiting shaft 29 is arranged in the vertical groove. A U-shaped groove 231 for accommodating the limiting shaft 29 in cooperation is further opened on the side wall of the third rotating member 23. An arc-shaped groove 223 for cooperating with the limiting shaft 29 is opened on the outer side wall of the second rotating member 22. In the initial state, the limiting shaft 29 is located in the vertical groove of the lock core housing 20 and the U-shaped groove 231. At this time, due to the action of the limiting shaft 29, the third rotating member 23 is limited on the lock core housing 20, and the third rotating member 23 cannot rotate. During the rotation of the second rotating member 22, when the second rotating member 22 rotates to make the arc-shaped groove 223 face the vertical groove and the U-shaped groove 231, the limiting shaft 29 moves into the arc-shaped groove 223, so that during the rotation of the second rotating member 22, the third rotating member 23 is driven to rotate, and further drives the tongue 3 at the lower end of the third rotating member 23 to stretch.

[0067] Working principle:

[0068] 1. First, insert the corresponding electronic key into the slot 211 of the first rotating member 21. When the electronic key contacts the two ejector pins 27, the key is authorized and the circuit board 26 is powered on. The powered-on circuit board 26 controls the operation of the rotating motor 24, thereby controlling the rotation of the swing arm 25, so that the swing arm 25 moves away from the stopper 232 of the third rotating member 23;

[0069] 2. Then turn the key. The key cooperates with the pin shaft 28, so as to drive the first rotating member 21 to rotate through the pin shaft 28. Since there is no block 232 of the third rotating member 23 to block the second rotating member 22, the second rotating member 22 rotates a certain angle along with the first rotating member 21. During the rotation of the second rotating member 22, when the arc-shaped groove 223 on the side wall of the second rotating member 22 is aligned with the vertical groove and the U-shaped groove 231, the limiting shaft 29 moves into the arc-shaped groove 223. Since the second rotating member 22 and the third rotating member 23 are in a snap-fit relationship, during the rotation of the second rotating member 22, the third rotating member 23 is driven to rotate, and further drives the insertion tongue 3 at the lower end of the third rotating member 23 to expand and contract.

[0070] The above embodiments and descriptions in the specification only illustrate the principle and the best embodiments of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed.

Claims

1. A remote control and orientation device for distribution network automation terminal DTU, characterized in that: It includes a base (1), a lock core (2) and a housing (4) arranged on the base (1). The housing (4) is rotatably connected to the base (1), and a limit baffle (14) for cooperating with the "local / remote" button is arranged in the housing (4). A first slot (12) for the tongue (3) to move is arranged on the base (1), and the tongue (3) is connected to the lock core (2). An extension block (11) is arranged on the side wall of the housing (4) at the upper end of the first slot (12). The extension block (11) extends towards the lock core (2), and a plurality of first magnets are arranged in the extension block (11). A T-shaped arc block (5) for cooperating with the extension block (11) is further arranged at the lower end of the extension block (11). A second magnet and a spring for cooperating with the first magnet are arranged on the T-shaped arc block (5). When the housing (4) is opened, since the housing (4) is away from the T-shaped arc block (5), the T-shaped arc block (5) drops and is clamped in the first slot (12), and the tongue (3) of the lock core (2) cannot continue to move in the first slot (12), resulting in the key being unable to be pulled out. When the housing (4) is covered, due to the attraction between the first magnet and the second magnet, the T-shaped arc block (5) is sucked up, so that the T-shaped arc block (5) is away from the first slot (12), and the tongue (3) can move in the first slot (12). The lock core (2) includes a lock core housing (20), and a first rotating member (21), a second rotating member (22), and a third rotating member (23) arranged in the lock core housing (20). The lower end of the first rotating member (21) is clamped with the second rotating member (22), and the first rotating member (21) can drive the second rotating member (22) to rotate during the rotation process. The lower end of the second rotating member (22) is clamped with the third rotating member (23), and the second rotating member (22) can drive the third rotating member (23) to rotate during the rotation process. The lower end of the third rotating member (23) is connected with a tongue (3). A circuit board (26) is arranged in the second rotating member (22). The circuit board (26) is electrically connected to a rotating motor (24), and the rotating motor (24) passes through the second rotating member (22) downward and is connected to an arm (25) at the lower end of the second rotating member (22). A stop block (232) for cooperating with the arm (25) is arranged on the inner side of the third rotating member (23). Two ejector pins (27) are also welded on the circuit board (26). The two ejector pins (27) pass through the first rotating member (21) upward and partially expose the first rotating member (21) to contact the key. A polygonal opening is arranged on the housing (4), and a transparent cover body (13) is covered on the polygonal opening. The transparent cover body (13) is rotatably connected to the housing (4) through a rotating shaft, and a limit baffle (14) for cooperating with the "local / remote" button is arranged at the lower end of the transparent cover body (13). A pin shaft (28) is provided on the inner side wall of the first rotating member (21). The pin shaft (28) cooperates with a key to drive the first rotating member (21) to rotate.

2. The remote control and orientation device for distribution network automation terminal DTU according to claim 1, characterized in that: The first rotating member (21) has a circular structure, and a second slot (211) for inserting a key is further provided on the first rotating member (21). A boss ((212) is further provided in the second slot (211). The ejector pin (27) passes upward through the boss ((212) and contacts the key. The two ejector pins (27) serve as positive and negative electrodes respectively. When the key contacts the two ejector pins (27), the key is authorized and powers on the circuit board (26). After being powered on, the circuit board (26) controls the rotation of the rotation motor (24), thereby controlling the rotation of the swing arm (25), so that the swing arm (25) moves away from the stopper (232) of the third rotating member (23). The pin shaft (28) is provided on the inner side wall of the second slot (211).

3. A remote control and orientation device for a distribution network automation terminal DTU according to claim 2, characterized in that: Two card slots (213) for cooperating with the second rotating member (22) are symmetrically provided at the lower end of the first rotating member (21).

4. A remote control directional device for a distribution network automation terminal DTU according to claim 1, characterized in that: The second rotating member (22) has a disc-shaped structure, and two protrusions (221) for cooperating with the card slots (213) of the first rotating member (21) are further provided at the upper end of the second rotating member (22).

5. A remote control and orientation device for a distribution network automation terminal DTU according to claim 4, characterized in that: A stepped cutting groove (222) for cooperating with the third rotating member (23) is further provided on the outer side wall of the second rotating member (22).

6. The remote control and orientation device for the distribution network automation terminal DTU according to claim 1, wherein: The swing arm (25) is arranged in a groove (224) at the lower end of the second rotating member (22), and notches for the swing of the swing arm (25) are further provided in the second rotating member (22) at both ends of the groove (224).

7. A remote control and orientation device for a distribution network automation terminal DTU according to claim 2, characterized in that: An arc-shaped strip groove (31) is provided on the bolt (3). The arc-shaped strip groove (31) is cooperatively connected with a pin shaft provided at the lower end of the third rotating member (23).

8. A remote motion orientation device for a distribution network automation terminal DTU according to claim 2, characterized in that: A vertical groove is further provided on the inner side wall of the lock core housing (20) in the vertical direction. A limiting shaft (29) is provided in the vertical groove. A U-shaped groove (231) for accommodating the limiting shaft (29) in cooperation is further provided on the side wall of the third rotating member (23). An arc-shaped groove (223) for cooperating with the limiting shaft (29) is provided on the outer side wall of the second rotating member (22). In the initial state, the limiting shaft (29) is located in the vertical groove of the lock core housing (20) and the U-shaped groove (231). At this time, due to the action of the limiting shaft (29), the third rotating member (23) is limited on the lock core housing (20), and the third rotating member (23) cannot rotate. During the rotation of the second rotating member (22), when the second rotating member (22) rotates to the position where the arc-shaped groove (223) is aligned with the vertical groove and the U-shaped groove (231), the limiting shaft (29) moves into the arc-shaped groove (223), so that the third rotating member (23) is driven to rotate during the rotation of the second rotating member (22), and further drives the bolt (3) at the lower end of the third rotating member (23) to expand and contract.

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