Cable anti-theft device

Abstract

The present invention discloses a cable anti-theft device, which aims to solve the problem that the existing cable well has no effective anti-theft measures, making the cable well cover easy to open, resulting in the return cable in the cable well being easy to be stolen. The invention includes an anti-theft lock device installed on the cable well, the anti-theft lock device including two groups of first lock body mechanisms, a slot and a second lock body mechanism; the first lock body mechanism includes a lock box, a lock tongue structure slidably arranged in the side wall of the lock box, and gears 1 and 2 rotatably arranged in the lock box; the lock tongue structure is provided with a rectangular cavity running through from top to bottom, and a plurality of racks are provided on the inner wall of the rectangular cavity; gear 1 is meshed with gear 2 and is respectively meshed with the racks on the opposite sides of the rectangular cavity; the lock box is provided with a drive motor 1, the output shaft of the drive motor 1 is fixedly connected to the rotating shaft on the gear 1, a lock rod is rotatably provided in the wall of the cable cover, and the lock rod is sleeved and fixed with the rotating shaft on the gear 2, and the cable cover can be locked or unlocked by the drive motor and the lock rod.

Description

Technical Field

[0001] The present invention relates to the technical field of cable anti-theft devices, and more particularly to a cable anti-theft device. Background Art

[0002] Taking a high-voltage cable well of a 110 kV cable line as an example, when operating and maintaining the cables, it is necessary to visually observe the status of the cable connectors inside the cable well, which often requires opening the well cover. Generally, multiple people are required to open the cable well cover, which brings great inconvenience to the operation and maintenance work. In addition, the cable cover itself is cast from solid cement, which is heavy and requires high labor costs for daily use. The cable well cover is placed on the cable well to prevent it from opening. At present, the cable well only relies on the deadweight of the cable well cover to achieve the closure of the cable well cover and there is no effective anti-theft measure. The cable well cover and the cable well are also not connected with the lock buckle, resulting in the cable well cover only needing to be moved out of position during the opening process, and no locking device needs to be opened, which makes the return cable in the cable well easy to be stolen.

[0003] Chinese patent publication number CN105696629B discloses a cable anti-theft manhole cover, comprising a manhole cover, a manhole seat, a locking device and a control system; the locking device comprises a mechanism box and a locking mechanism, and the locking device is installed in the mechanism box; the locking mechanism comprises a propulsion mechanism and a locking tongue mechanism; the locking tongue mechanism is located on the outside of the propulsion mechanism; it has the disadvantage that the cable cover can only be locked by electric control. Summary of the Invention

[0004] The present invention overcomes the shortcomings of existing cable wells that there are no effective anti-theft measures, which makes the cable well cover easy to be opened, resulting in the return cable in the cable well being easy to be stolen. The present invention provides a cable anti-theft device, which can effectively improve the anti-theft level of the cable well, making the cable well cover difficult to be opened, thereby preventing the return cable in the cable well from being stolen.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions: a cable anti-theft device, comprising a cable well, the cable well comprising a well base and a cable cover plate arranged on the well base, an anti-theft lock device is provided on the cable well, the anti-theft lock device comprises a plurality of first lock body mechanisms arranged in the cable cover plate, a plurality of slots arranged in the well base, and a second lock body mechanism arranged in the well base;

[0006] The first lock body mechanism includes a lock box embedded in the side wall of the cable cover, a lock tongue structure slidably arranged in the side wall of the lock box, and gears 1 and 2 rotatably arranged in the lock box. A rectangular cavity running through the upper and lower parts is provided on the lock tongue structure, and a plurality of racks are provided on the inner wall of the rectangular cavity. Gear 1 is meshed with gear 2 and respectively meshed with the racks on the opposite sides of the rectangular cavity. A drive motor 1 is provided on the lock box, and the output shaft of the drive motor 1 is fixedly connected to the rotating shaft on the gear 1. A lock rod is rotatably provided in the wall of the cable cover, and the lock rod is sleeved and fixed with the rotating shaft on the gear 2. The cable cover can be locked or unlocked by dual switching drive of the drive motor 1 and the lock rod.

[0007] The second lock body mechanism includes a box body embedded in the wall of the well seat, a second drive motor arranged in the box body, a drive component arranged on the output shaft of the second drive motor and a lock tongue arranged on the second drive motor. Through the second drive motor, the lock tongue can be controlled to extend into the lock box to realize the locking or unlocking of the cable cover by the well seat.

[0008] The present invention provides a cable anti-theft device, which can realize dual control by electric or manual means by driving the motor 1 or the locking rod in the first lock body mechanism, so that the cable cover can be locked or unlocked. This operation mode can make the locking and opening of the cable more convenient; it can also realize the locking or unlocking operation of the cable cover by the well seat by driving the driving motor 2 in the second lock body mechanism so that the lock tongue extends into the lock box. This mode can improve the anti-theft level of the cable well and realize the dual locking protection of the cable well. The anti-theft lock device can manually drive the locking rod to open the first lock, and the cable well is still in the locked protection state, thereby greatly improving the anti-theft level of the anti-theft well; wherein, the electric locking mode, through the built-in wireless remote control module and the driving motor 1 and the driving motor 2, controls the driving motor 1 to start by the wireless remote control, and drives The first motor drives the first gear to rotate, and the rotation of the first gear drives the second gear to rotate, so that the two gears simultaneously drive the lock tongue structure to slide along the lock box, so that the lock tongue structure can be extended or retracted to achieve the purpose of locking or unlocking. When the electric structure fails, the cable well cover can be physically locked and unlocked by a mechanical structure driven by a locking rod, that is, an installation head structure that can be twisted by a plum wrench is installed on the locking rod, and the movement of the installation head is driven by a manual operating tool. The rotation of the locking rod drives the second gear to rotate, and the rotation of the second gear drives the first gear to rotate, so that the two gears simultaneously drive the lock tongue structure to slide along the lock box, so that the lock tongue structure can be extended or retracted to achieve the purpose of locking or unlocking. Among them, a solar panel is used to provide power for the motor. When it is rainy or there is a shortage of electricity, the cable well cover can be opened and closed by mechanical locking.

[0009] Preferably, there are two sets of first lock mechanisms, one set in the side walls of the cable cover at each end, with the slots in the well seat adapted to fit the lock tongue. Since the cable cover itself is a cement slab cast from solid cement, it needs to be moved as a whole to be opened. Therefore, a symmetrical anti-theft lock device is designed at each end to better achieve the locking operation of the cable cover.

[0010] Preferably, the lock tongue structure includes a main connector, a connecting plate disposed on the main connector, and a lock tongue assembly disposed on the connecting plate. The lock tongue assembly comprises a second tongue lock disposed on the upper and lower side walls of the connecting plate. Two sets of slots corresponding to the second tongue locks are provided in the side wall of the well seat near the side of the first lock body mechanism. This lock tongue structure can improve locking strength. The structural design of the double-tongue lock second can also form a cavity. When only the second lock body mechanism is operated for locking, the first lock tongue can extend into the cavity to achieve automatic locking. In particular, since the structural strength of the second lock tongue is higher than that of the lock box, this structural design improves the locking strength of the second lock body mechanism.

[0011] Preferably, the drive assembly includes a screw disposed on the output shaft of the second drive motor, a slider threadedly connected to the screw, the slider being slidably disposed within the housing, and the first lock tongue being mounted on the slider. When the second lock body mechanism is actuated, the second drive motor is first actuated, which drives the screw to rotate, which in turn drives the slider to slide, thereby driving the first lock tongue to extend into the lock tongue structure, achieving automatic locking. The second drive motor is then reversed, which retracts the first lock tongue, achieving unlocking.

[0012] Preferably, the anti-theft lock device also includes a unlocking mechanism, which includes a drive motor three arranged on the slider, the output shaft of the drive motor three is fixedly connected to the end of the lock tongue one, and a rotating rod is fixed to the other end of the lock tongue one. A rack push rod is provided in the side wall of the rectangular cavity, and the rack on the rack push rod is meshed with the gear two. The two ends of the rack push rod are slidably connected to the connecting plate and the slide rails on the main connecting body, and a number of telescopic springs are provided between the rack push rod and the main connecting body. When the second gear is disconnected from the rack, the driving motor 2 is started, and the driving motor 2 rotates to drive the screw rod to rotate. The screw rod rotates to drive the slider and the lock tongue 1 to extend into the lock box, first extending into the cavity formed between the two lock tongues 2, here is the locked position of the second lock body mechanism, and the driving motor 2 is continued to be driven to make the slider and the lock tongue 1 continue to move. When the lock tongue 1 enters the rectangular cavity through the through hole, the lock tongue 1 is completed in place, and then the driving motor 3 is started. The driving motor 3 can drive the lock tongue 1 to rotate, thereby driving the rotating rod to rotate, so that the rack push rod moves. At this time, the telescopic spring is compressed, so that the rack on the rack push rod is disconnected from the gear 2. The design of this scheme can make the anti-theft lock device close the mechanical opening mode, thereby protecting the transmission in the first lock body mechanism, thereby effectively improving the anti-theft level.

[0013] Preferably, the unlocking mechanism further includes a locking structure comprising two sets of protrusions disposed on the rack push rod, with a locking slot formed between the two protrusions. This structural design allows the second gear to be disengaged from the rack by rotating the rotating rod, and the second motor to continue driving the first lock tongue inwardly into the locking slot to achieve locking, thereby improving the stability between the first lock tongue and the rack push rod.

[0014] Preferably, the lock box is provided with a plurality of fixing plates, two of which are provided with two through holes, so that the lock box and the cable cover can be fixed together by bolts.

[0015] Compared with the prior art, the present invention has the following beneficial effects: (1) the present invention can realize electric or manual dual control by driving the motor or the locking rod in the first lock body mechanism, making it more convenient to lock or unlock the cable cover; (2) when the electric structure fails, the cable well cover can be physically locked or unlocked by the mechanical structure driven by the locking rod, thereby achieving the purpose of locking or unlocking; (3) the present invention is provided with a unlocking mechanism, which can turn off the mechanical opening mode of the anti-theft lock device, thereby protecting the transmission in the first lock body mechanism, thereby effectively improving the anti-theft level. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a cross-sectional view of a cable anti-theft device of the present invention;

[0017] Figure 2 It is a partial structural cross-sectional view of a cable anti-theft device of the present invention;

[0018] Figure 3 yes Figure 2 Cross-sectional view at “AA” in the figure;

[0019] Figure 4 yes Figure 2 Cross-sectional view at "BB" in the middle;

[0020] Figure 5 yes Figure 2 Cross-sectional view at "CC" in the middle;

[0021] In the figure: well seat 1; cable cover 2; anti-theft lock device 3; first lock body mechanism 4; lock box 400; lock tongue structure 401; gear 1 402; gear 2 403; rectangular cavity 404; rack 405; drive motor 1 406; lock rod 407; main connector 408; connecting plate 409; tongue lock 2 410; cavity 411; fixing plate 412; through hole 413; slot 5; second lock body mechanism 6; box body 600; drive motor 2 601; drive assembly 602; lock tongue 1 603; screw rod 604; slider 605; unlocking mechanism 7; drive motor 3 700; rotating rod 701; rack push rod 702; slide rail 703; telescopic spring 704; through hole 705; protrusion 706; slot 707. DETAILED DESCRIPTION

[0022] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0023] The technical solution of the invention is further described in detail below through specific embodiments and in conjunction with the accompanying drawings:

[0024] Example 1: A cable anti-theft device (see attached Figure 1-5 ), comprising a cable well, the cable well comprising a well base 1 and a cable cover plate 2 arranged on the well base 1, an anti-theft locking device 3 is provided on the cable well, the anti-theft locking device 3 comprises a plurality of first lock mechanisms 4 arranged in the cable cover plate 2, a plurality of slots 5 arranged in the well base 1 and a second lock mechanism 6 arranged in the well base 1;

[0025] The first lock mechanism 4 includes a lock box 400 embedded in the side wall of the cable cover 2, a lock tongue structure 401 slidably set in the side wall of the lock box 400, and a gear 1 402 and a gear 2 403 rotatably set in the lock box 400. The lock tongue structure 401 is provided with a rectangular cavity 404 that passes through from top to bottom. A plurality of racks 405 are provided on the inner wall of the rectangular cavity 404. The gear 1 402 is meshed with the gear 2 403 and is respectively meshed with the racks 405 on the opposite sides of the rectangular cavity 404. The lock box 400 A drive motor 406 is fixedly installed inside, and the output shaft of the drive motor 406 is fixedly connected to the shaft on the gear 1 402. A locking rod 407 is rotatably installed in the wall of the cable cover 2. The locking rod 407 is fixedly connected to the shaft on the gear 2 403. Through the dual switching drive of the drive motor 406 and the locking rod 407, the cable cover 2 can be locked or unlocked. There are two groups of first lock body mechanisms 4, which are respectively set in the side walls at both ends of the cable cover 2. The slots 5 in the well seat 1 are adapted to the lock tongue. Since the cable cover 2 itself is a cement board cast from solid cement, it needs to be moved away as a whole for operation when it is opened. Therefore, a symmetrical anti-theft lock device 3 is designed at both ends to better achieve the locking operation of the cable cover 2. The lock tongue structure 401 includes a main connector 408, a connecting plate 409 disposed on the main connector 408, and a lock tongue assembly disposed on the connecting plate 409. The lock tongue assembly comprises a second tongue lock 410 disposed on the upper and lower side walls of the connecting plate 409. Two sets of slots 5 corresponding to the second tongue lock 410 are provided in the side wall of the well base 1 near the side of the first lock body mechanism 4. This lock tongue structure 401 can improve locking strength. The structural design of the double-tongue lock 410 also forms a cavity. When only the second lock body mechanism 6 is operated for locking, the first lock tongue 603 can extend into the cavity, achieving automatic locking. In particular, because the structural strength of the second lock tongue is higher than that of the lock box 400, this structural design improves the locking strength of the second lock body mechanism 6.

[0026] The second lock mechanism 6 includes a box body 600 embedded in the wall of the well seat 1, a second drive motor 601 disposed within the box body 600, a drive assembly 602 disposed on the output shaft of the second drive motor 601, and a lock tongue 1 603 disposed on the second drive motor 601. The second drive motor 601 can be used to control the lock tongue 1 603 to extend into the lock box 400, thereby locking or unlocking the cable cover 2 of the well seat 1. The drive assembly 602 includes a screw rod 604 disposed on the output shaft of the second drive motor 601, and a slider 605 threadedly connected to the screw rod 604. The slider 605 is slidably disposed within the box body 600, and the lock tongue 1 603 is mounted on the slider 605. When the second lock body mechanism 6 is driven, the driving motor 2 601 is started first, and the driving motor 2 601 starts to drive the screw rod 604 to rotate, and the rotation of the screw rod 604 drives the slider 605 to slide, thereby driving the lock tongue 1 603 to extend into the lock tongue structure 401 to achieve automatic locking. The driving motor 2 601 is reversed to achieve the retraction of the lock tongue 1 603 and achieve unlocking.

[0027] The anti-theft lock device 3 also includes a disengaging mechanism 7, which includes a driving motor 3 700 arranged on the slider 605, the output shaft of the driving motor 3 700 is fixedly connected to the end of the lock tongue 1 603, and the other end of the lock tongue 1 603 is fixedly provided with a rotating rod 701, and a rack push rod 702 is provided in the side wall of the rectangular cavity 404, the rack 405 on the rack push rod 702 is meshed and connected with the gear 2 403, and the two ends of the rack push rod 702 are slidably connected to the connecting plate 409 and the slide rail 703 on the main connecting body 408, and a number of telescopic springs 704 are provided between the rack push rod 702 and the main connecting body 408. The connecting plate 409 is provided with a through hole 705; when it is necessary to disconnect the gear 2 403 from the rack 405, the driving motor 2 601 is started, the driving motor 2 601 rotates to drive the screw rod 604 to rotate, the screw rod 604 rotates to drive the slider 605 and the lock tongue 1 603 to extend into the lock box 400, first extending into the cavity formed between the two lock tongues 2, here is the position where the second lock body mechanism 6 is locked in place, and the driving motor 2 601 is continued to be driven to make the slider 605 and the lock tongue 1 603 continue to move. When the lock tongue 1 603 passes through the through hole 705, the second lock body mechanism 6 is locked in place. When the hole enters the rectangular cavity 404, the lock tongue 1 603 is fully positioned, and then the drive motor 3 700 is activated. The drive motor 3 700 can drive the lock tongue 1 603 to rotate, thereby driving the rotation rod 701 to rotate, causing the rack push rod 702 to move. At this time, the telescopic spring 704 is compressed, thereby disconnecting the rack 405 on the rack push rod 702 from the gear 2 403. This design can disable the mechanical opening mode of the anti-theft lock device 3, thereby protecting the transmission within the first lock body mechanism 4, and effectively improving the anti-theft level. The unlocking mechanism 7 also includes a locking structure, which includes two sets of protrusions 706 and 706 provided on the rack push rod 702, forming a slot 707 between the two sets of protrusions. This structural design allows the locking tongue 1 603 to be driven inwardly into the slot 707 by driving the motor 2 601 after the rotating rod 701 rotates to disengage the gear 2 403 from the rack 405, thereby achieving clamping and improving the stability between the locking tongue 1 603 and the rack push rod 702.

[0028] The lock box 400 is provided with a plurality of fixing plates 412. There are two fixing plates 412, and the fixing plates 412 are provided with two through holes, so that the lock box 400 and the cable cover plate 2 can be installed and fixed by bolts.

[0029] Working method:

[0030] The present invention provides a cable anti-theft device. This solution can realize dual control by electric or manual means by driving the motor 1 or the locking rod 407 in the first lock body mechanism 4, so that the cable cover 2 can be locked or unlocked. This operation method can make the locking and opening of the cable more convenient. Among them, a solar panel is used to provide power for the motor. This structure belongs to the prior art. The drawings and features of the specific structure will not be repeated here. When it is rainy or there is a power shortage, the cable well cover can be opened and closed by mechanical locking.

[0031] The built-in wireless remote control module can be controlled by an external controller (wherein, the external controller and the built-in wireless remote control module are both prior art structures, and the drawings and features of the specific structures will not be described here in detail), so that the drive motor 1 406 and the drive motor 2 601 are started, thereby realizing electric locking control, as follows:

[0032] When the first lock body mechanism 4 needs to be activated for electric locking, an electrical signal is first sent out through the external controller. After the built-in wireless remote control module receives the electrical signal and processes it, it controls the drive motor 1 406 to start. The drive motor 1 406 drives the gear 1 402 to rotate. The rotation of the gear 1 402 drives the gear 2 403 to rotate, so that the two gears simultaneously drive the lock tongue structure 401 to slide along the lock box 400, so that the lock tongue structure 401 can be extended or retracted to achieve the purpose of locking or unlocking;

[0033] When the second lock body mechanism 6 needs to be activated for electric locking, an electrical signal is first sent out through the external controller. After the built-in wireless remote control module receives the electrical signal and processes it, it controls the driving motor 2 601 to start. The driving motor 2 601 starts to drive the screw rod 604 to rotate. The screw rod 604 rotates and drives the slider 605 to slide, so that the lock tongue 1 603 is extended or retracted, thereby achieving the purpose of locking or unlocking.

[0034] When the electric structure fails, the cable well cover can be physically locked or unlocked by the mechanical structure driven by the locking rod 407. That is, a mounting head structure that can be twisted by a plum wrench is installed on the locking rod 407. By driving the manual operation tool to drive the movement of the mounting head, the locking rod 407 rotates to drive the second gear 403 to rotate, and the rotation of the second gear 403 drives the first gear 402 to rotate, so that the two gears simultaneously drive the lock tongue structure 401 to slide along the lock box 400, so that the lock tongue structure 401 can be extended or retracted to achieve the purpose of locking or unlocking;

[0035] When it is necessary to disconnect the gear 2 403 from the rack 405, the drive motor 2 601 is started, and the drive motor 2 601 rotates to drive the screw rod 604 to rotate, and the screw rod 604 rotates to drive the slider 605 and the lock tongue 1 603 to extend into the lock box 400, first extending into the cavity formed between the two lock tongues 2, here is the position where the second lock body mechanism 6 is locked in place, and the drive motor 2 601 is continued to be driven to make the slider 605 and the lock tongue 1 603 continue to move. When the lock tongue 1 603 enters the rectangular cavity 404 through the through hole, the lock tongue 1 603 is fully in place, and then the drive motor 3 700 is started, and the drive motor 3 700 can drive the lock tongue 1 6 After the gear 403 is disconnected from the rack 405, the second gear 403 is released, and the second gear 403 is released, thereby the gear 405 is released and the second gear 403 is released.

[0036] The above-described embodiments are only preferred solutions of the present invention and are not intended to limit the present invention in any form. Other variations and modifications are possible without exceeding the technical solutions described in the claims.

Claims

1. A cable anti-theft device, comprising a cable well, the cable well comprising a well seat and a cable cover plate arranged on the well seat, wherein: The cable well is provided with an anti-theft lock device, which includes a plurality of first lock mechanisms arranged in the cable cover, a plurality of slots arranged in the well seat, and a second lock mechanism arranged in the well seat; The first lock body mechanism includes a lock box embedded in the side wall of the cable cover, a lock tongue structure slidably arranged in the side wall of the lock box, and gears 1 and 2 rotatably arranged in the lock box. A rectangular cavity running through the upper and lower parts is provided on the lock tongue structure, and a plurality of racks are provided on the inner wall of the rectangular cavity. Gear 1 is meshed with gear 2 and respectively meshed with the racks on the opposite sides of the rectangular cavity. A drive motor 1 is provided on the lock box, and an output shaft of the drive motor 1 is fixedly connected to the rotating shaft on the gear 1. A locking rod is rotatably provided in the wall of the cable cover, and the locking rod is fixedly sleeved with the rotating shaft on the gear 2. The cable cover can be locked or unlocked by driving the drive motor 1 or the lock rod. The second lock body mechanism includes a box body embedded in the wall of the well seat, a second drive motor arranged in the box body, a drive component arranged on the output shaft of the second drive motor and a lock tongue arranged on the second drive motor. Through the second drive motor, the lock tongue can be controlled to extend into the lock box to realize the locking or unlocking of the cable cover by the well seat.

2. A cable anti-theft device according to claim 1, characterized in that: There are two groups of first lock body mechanisms, which are respectively arranged in the side walls at both ends of the cable cover plate, and the slots in the well seat are adapted to the lock tongues.

3. A cable anti-theft device according to claim 2, characterized in that: The lock tongue structure includes a main connector, a connecting plate arranged on the main connector and a lock tongue assembly arranged on the connecting plate. The lock tongue assembly consists of tongue lock 2 arranged on the upper and lower side walls of the connecting plate. Two groups of slots corresponding to tongue lock 2 are provided in the side wall of the well seat close to the side of the first lock body mechanism.

4. A cable anti-theft device according to claim 1, 2 or 3, characterized in that: The driving component comprises a screw rod arranged on the second output shaft of the driving motor, a slider threadedly connected to the screw rod, the slider is slidably arranged in the box body, and the lock tongue is installed on the slider.

5. A cable anti-theft device according to claim 4, characterized in that The locking device also includes a unlocking mechanism, which includes a driving motor three arranged on the slider, the output shaft of the driving motor three is fixedly connected to the end of the lock tongue one, and a rotating rod is fixedly provided at the other end of the lock tongue one. A rack push rod is provided in one side wall of the rectangular cavity, and the rack on the rack push rod is meshed with the gear two. The two ends of the rack push rod are slidably connected to the connecting plate and the slide rails on the main connecting body, and a number of telescopic springs are provided between the rack push rod and the main connecting body.

6. A cable anti-theft device according to claim 5, characterized in that: The unlocking mechanism also includes a locking structure, which includes two groups of protrusions arranged on the rack push rod, and a clamping groove is formed between the two blocks.

7. A cable anti-theft device according to claim 1 or 2 or 3 or 5 or 6, characterized in that: The lock box is provided with a plurality of fixing plates.

Images