CN109805637B - Intelligent key cabinet for power plant - Google Patents
Intelligent key cabinet for power plant Download PDFInfo
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- CN109805637B CN109805637B CN201910259734.4A CN201910259734A CN109805637B CN 109805637 B CN109805637 B CN 109805637B CN 201910259734 A CN201910259734 A CN 201910259734A CN 109805637 B CN109805637 B CN 109805637B
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Abstract
The invention discloses a smart key cabinet for a power plant, which comprises a cabinet body, wherein a key box fixing frame is arranged on one side in the cabinet body, a group of uniformly arranged key boxes are arranged on the key box fixing frame, a horizontal moving device corresponding to the position of the key box fixing frame is arranged on the other side in the cabinet body, a vertical moving device is arranged on the horizontal moving device, a key box steering device is arranged on the vertical moving device, and a key box inserting and taking device is arranged on the key box steering device; the key box pushing device is arranged at one end in the cabinet body, the storage opening corresponding to the key box pushing device is also arranged on the cabinet body, and the storage opening and the horizontal moving device are positioned at the same side. The invention has the characteristic of convenient key access.
Description
Technical Field
The invention relates to a key cabinet, in particular to a smart key cabinet for a power plant.
Background
In daily work, the operating teams of Fuchunjiang power plant need different keys, such as one type of key, two types of keys, three types of keys, entrance guard card and various spare keys, according to different work or job classes, so that special key cabinets are needed for storage. The existing key cabinet adopts a storage cabinet similar to a supermarket storage format, each key is placed in a corresponding storage grid, and the cabinet door is opened to take the key when the key is needed to be used. However, the height of the storage grid on the existing key cabinet is high or low, so that people can not only take keys conveniently, but also the efficiency of taking keys can be affected. Moreover, because the use frequency of the key cabinet is very high, the phenomenon that the cabinet door is easy to open and the taking efficiency of the key is affected. Therefore, the prior art has the problem of inconvenient key access.
Disclosure of Invention
The invention aims to provide a smart key cabinet for a power plant. The invention has the characteristic of convenient key access.
The technical scheme of the invention is as follows: the intelligent key cabinet for the power plant comprises a cabinet body, wherein a key box fixing frame is arranged on one side in the cabinet body, a group of uniformly arranged key boxes are arranged on the key box fixing frame, a horizontal moving device corresponding to the position of the key box fixing frame is arranged on the other side in the cabinet body, a vertical moving device is arranged on the horizontal moving device, a key box steering device is arranged on the vertical moving device, and a key box inserting and taking device is arranged on the key box steering device; the key box pushing device is arranged at one end in the cabinet body, the storage opening corresponding to the key box pushing device is also arranged on the cabinet body, and the storage opening and the horizontal moving device are positioned at the same side.
In the intelligent key cabinet for the power plant, a drawer box is further arranged below the cabinet body, and a spare key is arranged in the drawer box.
In the intelligent key cabinet for the power plant, the key box fixing frame comprises a mounting plate fixed on the side wall of the cabinet body, and a plurality of groups of supporting frames are uniformly distributed on the mounting plate; the support frame comprises two support rods which are distributed in parallel.
In the intelligent key cabinet for the power plant, the key box comprises a box body, two inserting and taking grooves which are distributed in parallel are formed in the bottom of the box body, inserting and taking frames are arranged at two ends of the upper portion of the box body, a placing groove is formed in the bottom of each inserting and taking frame, and the section of each placing groove is of a triangular structure.
In the intelligent key cabinet for the power plant, the horizontal moving device comprises a vertical connecting rod, wherein an upper guide rail and a lower guide rail are respectively arranged at the upper end and the lower end of the vertical connecting rod, and the upper guide rail and the lower guide rail are respectively positioned at the two sides of the vertical connecting rod; the upper end of the vertical connecting rod is also provided with a driven guide wheel matched with the upper guide rail, the lower end of the vertical connecting rod is provided with a driving guide wheel matched with the lower guide rail, and the driving guide wheel is connected with a horizontal driving motor through a rotating shaft.
In the intelligent key cabinet for the power plant, the vertical moving device comprises a toothed transmission belt arranged at one side of a vertical connecting rod, and a driving mechanism is arranged on the toothed transmission belt; the driving mechanism comprises a shell, guide wheels are arranged at the upper end and the lower end in the shell, a driving gear meshed with the toothed transmission belt is arranged in the shell, the driving gear is connected with a transmission motor through a transmission shaft, and the transmission motor is fixed on the outer side of the shell.
In the intelligent key cabinet for the power plant, the key box steering device comprises a connecting plate fixed on the vertical moving device, a rotating motor is arranged on the connecting plate, and an output shaft of the rotating motor is connected with the bottom of the key box inserting and taking device.
In the intelligent key cabinet for the power plant, the key box inserting and taking device comprises a bottom plate, a guide rail is arranged above the bottom plate, a sliding block is arranged on the guide rail, an inserting and taking plate is arranged above the sliding block, and an inserting and taking rod matched with the key box is arranged at the outer end of the inserting and taking plate; the side surface of the guide rail is also provided with a driving wheel and a driven wheel which are fixed on the upper surface of the bottom plate, a transmission belt is arranged between the driving wheel and the driven wheel, and a clamping piece which is fixed with the transmission belt is also arranged below the inserting and taking plate; the driving wheel is connected with a driving motor positioned below the bottom plate through a transmission shaft; the bottom of the bottom plate is also provided with a rotary connecting seat.
In the intelligent key cabinet for the power plant, the key box pushing device comprises a mounting plate fixed with the cabinet body, a fixed bottom plate is arranged above the mounting plate, a sliding rail is arranged above the fixed bottom plate, a second sliding block is arranged above the sliding rail, and a key box placing frame is arranged above the second sliding block; the side surface of the sliding rail is provided with a second driving wheel and a second driven wheel which are positioned on the fixed bottom plate, a second transmission belt is arranged between the second driven wheel and the second driving wheel, and the second driving wheel is connected with a second driving motor positioned below the fixed bottom plate through a transmission shaft; and a second clamping piece matched with the second transmission belt is arranged below the key box placing frame.
In the intelligent key cabinet for the power plant, the key box placing frame comprises a plate body fixed on the second sliding block, a support is arranged above the plate body, and a fixing rod matched with the key box is arranged above the support.
Compared with the prior art, the key box is quickly stored and taken out through the mutual matching among the key box fixing frame, the horizontal moving device, the vertical moving device, the key box steering device, the key box inserting and taking device and the key box pushing device which are arranged in the cabinet body, the whole storing and taking process is efficient and stable, and the key box is greatly convenient for users to store and take out; meanwhile, by only arranging one access port on the cabinet body, a user only needs to access the key at a fixed position, so that convenience is brought to the user and the key access efficiency is improved; moreover, the key is pushed through the key box pushing-out device without using a cabinet door, so that the phenomenon that the cabinet door cannot be opened can be effectively avoided, and the running stability of the key cabinet is ensured. In summary, the invention has the characteristic of convenient key access.
Moreover, the key box fixing frame and the key box are matched with each other to replace the traditional storage mode of the storage grid, so that the size of the key cabinet can be effectively reduced, the space in the key cabinet is relatively open, air circulation is facilitated, and the heat dissipation efficiency in the key cabinet is conveniently improved. Meanwhile, the inserting and taking grooves are formed in the bottom of the box body of the key box, and the inserting and taking frames and the placing grooves are formed in the two ends of the box body, so that the key box can be reasonably inserted and taken and placed, and the stability of the key box in the process of storing and taking is improved.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic perspective view of the present invention;
FIG. 3 is an enlarged view in direction A of FIG. 2;
FIG. 4 is a diagram of the positional relationship of the key case holder and the horizontal movement device;
FIG. 5 is a schematic view of a horizontal movement device;
FIG. 6 is a schematic structural view of a vertical mobile device;
FIG. 7 is an enlarged view of a portion of the top of FIG. 6;
FIG. 8 is an enlarged view of a portion of the middle of FIG. 6;
FIG. 9 is a block diagram of another view of FIG. 8;
FIG. 10 is a schematic structural view of the key case;
FIG. 11 is a schematic illustration of the position of the guide wheel and drive gear in the vertical movement device;
FIG. 12 is a schematic view of the key case inserting and extracting device;
FIG. 13 is a schematic view of a key case insertion device from another perspective;
FIG. 14 is a top view of the base plate;
fig. 15 is a schematic structural view of the key case pushing-out device;
FIG. 16 is a schematic view of the installation of the key case ejector with the key case;
fig. 17 is a top view of the fixed base plate.
The marks in the drawings are: 1 cabinet, 2-key box fixing frame, 3-key box, 4-horizontal moving device, 5-vertical moving device, 6-key box steering device, 7-key box inserting and taking device, 8-key box pushing device, 9-access port, 10-drawer box, 201-mounting plate, 202-supporting rod, 301-box body, 302-inserting and taking groove, 303-inserting and taking frame, 304-placing groove, 401-vertical connecting rod, 402-upper guide rail, 403-lower guide rail, 404-driven guide wheel, 405-driving guide wheel, 406-horizontal driving motor, 501-toothed transmission belt, 502-driving mechanism, 503-shell, 504-guide wheel, 505-driving gear, 506-driving motor, 601-connecting plate, 602-rotating motor, 701-bottom plate, 702-guide rail, 703-sliding block, 704-inserting plate, 705-inserting rod, 706-driving wheel, 707-driven wheel, 708-transmission belt, 709-clamping piece, 710-driving motor, 711-rotating connecting seat, 801-mounting plate, 802-fixed bottom plate, 803-sliding rail, 804-second sliding block, 805-key box placing frame, 806-second driving wheel, 807-second driven wheel, 808-second transmission belt, 809-second driving motor, 810-second clamping piece, 811-plate body, 812-bracket, 813-fixed rod.
Detailed Description
The invention is further illustrated by the following figures and examples, which are not intended to be limiting.
Examples. The intelligent key cabinet for the power plant comprises a cabinet body 1, wherein one side in the cabinet body 1 is provided with a key box fixing frame 2, a group of uniformly arranged key boxes 3 are arranged on the key box fixing frame 2, the other side in the cabinet body 1 is provided with a horizontal moving device 4 corresponding to the position of the key box fixing frame 2, the horizontal moving device 4 is provided with a vertical moving device 5, the vertical moving device 5 is provided with a key box steering device 6, and the key box steering device 6 is provided with a key box inserting and taking device 7; one end in the cabinet body 1 is provided with a key box pushing device 8, the cabinet body 1 is also provided with an access port 9 corresponding to the key box pushing device 8, and the access port 9 and the horizontal moving device 4 are positioned on the same side.
A drawer box 10 is also arranged below the cabinet body 1, and a spare key is arranged in the drawer box 10.
The key box fixing frame 2 comprises a mounting plate 201 fixed on the side wall of the cabinet body 1, and a plurality of groups of supporting frames are uniformly distributed on the mounting plate 201; the support frame comprises two support rods 202 which are distributed in parallel.
The key box 3 comprises a box body 301, two parallel inserting and taking grooves 302 are formed in the bottom of the box body 301, inserting and taking frames 303 are arranged at two ends of the upper portion of the box body 301, a placing groove 304 is formed in the bottom of each inserting and taking frame 303, and the cross section of each placing groove 304 is of a triangular structure.
The horizontal moving device 4 comprises a vertical connecting rod 401, wherein an upper guide rail 402 and a lower guide rail 403 are respectively arranged at the upper end and the lower end of the vertical connecting rod 401, and the upper guide rail 402 and the lower guide rail 403 are respectively positioned at the two sides of the vertical connecting rod 401; the upper end of the vertical connecting rod 401 is also provided with a driven guide wheel 404 which is mutually matched with the upper guide rail 402, the lower end of the vertical connecting rod 401 is provided with a driving guide wheel 405 which is mutually matched with the lower guide rail 403, and the driving guide wheel 405 is connected with a horizontal driving motor 406 through a rotating shaft.
The vertical moving device 5 comprises a toothed transmission belt 501 arranged on one side of the vertical connecting rod 401, and a driving mechanism 502 is arranged on the toothed transmission belt 501; the driving mechanism comprises a housing 503, guide wheels 504 are arranged at the upper end and the lower end in the housing 503, a driving gear 505 meshed with the toothed transmission belt 501 is arranged in the housing 503, the driving gear 505 is connected with a transmission motor 506 through a transmission shaft, and the transmission motor 506 is fixed on the outer side of the housing 503.
The key box steering device 6 comprises a connecting plate 601 fixed on the vertical moving device 5, a rotating motor 602 is arranged on the connecting plate 601, and an output shaft of the rotating motor 602 is connected with the bottom of the key box inserting and taking device 7.
The key box inserting and taking device 7 comprises a bottom plate 701, a guide rail 702 is arranged above the bottom plate 701, a sliding block 703 is arranged on the guide rail 702, an inserting and taking plate 704 is arranged above the sliding block 703, and an inserting and taking rod 705 matched with the key box 3 is arranged at the outer end of the inserting and taking plate 704; the side surface of the guide rail 702 is also provided with a driving wheel 706 and a driven wheel 707 which are fixed on the upper surface of the bottom plate 701, a transmission belt 708 is arranged between the driving wheel 706 and the driven wheel 707, and a clamping piece 709 which is fixed with the transmission belt 708 is also arranged below the inserting plate 704; the driving wheel 706 is connected with a driving motor 710 positioned below the bottom plate 701 through a transmission shaft; the bottom of the bottom plate 701 is also provided with a rotary connecting seat 711.
The key box pushing device 8 comprises a mounting plate 801 fixed with the cabinet body 1, a fixed bottom plate 802 is arranged above the mounting plate 801, a sliding rail 803 is arranged above the fixed bottom plate 802, a second sliding block 804 is arranged above the sliding rail 803, and a key box placing frame 805 is arranged above the second sliding block 804; a second driving wheel 806 and a second driven wheel 807 are arranged on the side surface of the sliding rail 803, a second transmission belt 808 is arranged between the second driven wheel 807 and the second driving wheel 806, and the second driving wheel 806 is connected with a second driving motor 809 positioned below the fixed bottom plate 802 through a transmission shaft; a second clamping member 810 matched with the second transmission belt 808 is arranged below the key box accommodating frame 805.
The key box placement frame 805 comprises a plate body 811 fixed on the second slider 804, a bracket 812 is arranged above the plate body 811, and a fixing rod 813 matched with the key box 3 is arranged above the bracket 812.
A key is placed on the key box.
The outer end of the other side of the cabinet body is provided with a cabinet door, and the cabinet door and the horizontal moving device are on the same side.
The fixed rod is matched with a placing groove on the key box.
The upper guide rail is fixed at the top in the cabinet body, the lower guide rail is fixed at the bottom in the cabinet body,
the output shaft of the rotating motor is provided with a coupler which is connected with the bottom of the key box inserting and taking device.
The inserting and taking rod corresponds to the inserting and taking groove of the key box body.
The drawer box is opened through the electromagnetic switch and is used for placing the spare key.
The shell of the vertical moving device is also provided with a locator (such as a GPS locator) for locating the position of the key box inserting and taking device, so that the key box at the corresponding position can be conveniently inserted and taken.
The invention also comprises a computer control end, wherein the computer control end is connected with the locator, the computer control end is connected with an identifier (such as a two-dimensional code scanner) positioned outside the cabinet body, the corresponding position of each key box is recorded to the computer control end, and a key is associated with the corresponding key box and a work card of related staff at the computer control end; i.e. one key case and one work card for each key, and each key case has a fixed position on the key case holder.
When the key is stored: the two-dimensional code on the key or the work card is scanned through the identifier, the computer control end searches for the key box corresponding to the key, then controls the horizontal moving device, the vertical moving device, the key box steering device, the key box inserting and taking device and the key box pushing device to perform corresponding actions, pushes out the key box, after a user places the key on the key box pushing device, presses down the reset button, the key box pushing device performs reset actions, and then the horizontal moving device, the vertical moving device, the key box steering device and the key box inserting and taking device are mutually matched to send the key box back to the corresponding position of the key box fixing frame from the key box pushing device.
When a key is taken, a two-dimensional code on a work card is scanned through the identifier, a computer control end searches for a key box and a key corresponding to the work card, then the horizontal moving device, the vertical moving device, the key box steering device, the key box inserting and taking device and the key box pushing device are controlled to perform corresponding actions, the key box is pushed out, after the user takes the key, a reset button is pressed, the key box pushing device performs reset action, and then the horizontal moving device, the vertical moving device, the key box steering device and the key box inserting and taking device are mutually matched to send the key box back to the corresponding position of the key box fixing frame from the key box pushing device.
The working process of the horizontal moving device comprises the following steps: the horizontal driving motor works to drive the driving guide wheel to rotate, and the driving guide wheel is matched with the lower guide rail, so that the driving guide wheel moves along the lower guide rail, and the driven guide wheel is driven to move along the upper guide rail through the vertical connecting rod. Moreover, the upper guide rail and the lower guide rail are respectively arranged at two sides of the vertical connecting rod, so that derailment can be effectively prevented.
The working process of the vertical moving device comprises the following steps: the transmission motor works to drive the driving gear to rotate, and the driving gear is meshed with the tooth form on the tooth form transmission belt, so that the driving gear moves up and down along the tooth form transmission belt; meanwhile, the parallelism of the tooth-shaped transmission belt meshed with the driving gear is controlled by arranging guide wheels at the upper end and the lower end in the shell.
The process of the key box steering device comprises the following steps: the rotating motor works to drive the key box inserting and taking device to integrally rotate by 90 degrees.
The working process of the key box inserting and taking device comprises the following steps: the driving motor works to drive the driving wheel to rotate, the driving wheel drives the transmission belt and the driven wheel to rotate, the inserting plate is driven to move through the transmission belt, the sliding block can move along the guide rail, and the limiting and moving stability is realized through the mutual matching of the sliding block and the guide rail. The removal of board is got in the plug, and then drives the removal of getting the pole of inserting, inserts and gets the groove of getting of inserting bottom of the box portion and cooperate, realizes the insertion of key box, then vertical mobile device rises a certain distance for key box and bracing piece separate mutually, control driving motor reverse rotation afterwards, make and insert and get the board and insert the pole return, accomplish the key box and insert and get on the key box mount.
The key box is placed on the key box fixing frame: the horizontal moving device works, the vertical moving device moves to a corresponding position, then the vertical moving device moves the key box inserting and taking device to a corresponding position, then the key box inserting and taking device works, so that the inserting and taking rod moves to the position above the corresponding supporting frame, and then the vertical moving device descends, so that the supporting rod is matched with the placing groove of the key box, and the placement of the key box is completed; finally, the key box inserting and taking device performs resetting action.
The key box is placed on the key box pushing-out device: the key box inserting and taking device is reset after the key box is taken out from the key box fixing frame, then the key box rotating device rotates 90 degrees, and the key box inserting and taking device rotates 90 degrees, so that the positions of the key box and the key box pushing-out device correspond; the key box inserting and taking device is moved to a position corresponding to the key box pushing device through the horizontal moving device and the vertical moving device, namely, the key box is located above the key box placing frame, the vertical moving device descends, the placing groove of the key box is matched with the fixing rod, the inserting and taking rod is separated from the key box, and the key box inserting and taking device is reset, so that placing of the key box is completed.
The inserting and taking process of the key box on the key box pushing device is opposite to the placing process, namely the position of the inserting and taking rod is adjusted to the lower side of the key box through the vertical moving device, then the inserting and taking rod is inserted into the lower side of the key box, the vertical moving device ascends, the key box is separated from the key box placing frame, the inserting and taking rod is reset, and inserting and taking is completed.
The process of the key box pushing-out device comprises the following steps: the second driving motor works to drive the second driving wheel to rotate, the second driving wheel drives the second driven wheel and the second transmission belt to act, the second transmission belt drives the fixed bottom plate to move through the second clamping piece, and the fixed bottom plate moves along the sliding rail through the second sliding block to finish pushing of the key box. Simultaneously, fixed with the cabinet body through the mounting panel.
Claims (6)
1. A smart key cabinet for a power plant, characterized in that: the key box comprises a cabinet body (1), wherein a key box fixing frame (2) is arranged on one side in the cabinet body (1), a group of uniformly arranged key boxes (3) are arranged on the key box fixing frame (2), a horizontal moving device (4) corresponding to the position of the key box fixing frame (2) is arranged on the other side in the cabinet body (1), a vertical moving device (5) is arranged on the horizontal moving device (4), a key box steering device (6) is arranged on the vertical moving device (5), and a key box inserting and taking device (7) is arranged on the key box steering device (6); one end in the cabinet body (1) is provided with a key box pushing device (8), the cabinet body (1) is also provided with an access port (9) corresponding to the key box pushing device (8), and the access port (9) and the horizontal moving device (4) are positioned on the same side;
the key box (3) comprises a box body (301), two parallel inserting and taking grooves (302) are formed in the bottom of the box body (301), inserting and taking frames (303) are arranged at two ends of the upper portion of the box body (301), a placing groove (304) is formed in the bottom of each inserting and taking frame (303), and the cross section of each placing groove (304) is of a triangular structure;
the key box inserting and taking device (7) comprises a bottom plate (701), a guide rail (702) is arranged above the bottom plate (701), a sliding block (703) is arranged on the guide rail (702), an inserting and taking plate (704) is arranged above the sliding block (703), and an inserting and taking rod (705) matched with the key box (3) is arranged at the outer end of the inserting and taking plate (704); a driving wheel (706) and a driven wheel (707) which are fixed on the upper surface of the bottom plate (701) are further arranged on the side surface of the guide rail (702), a transmission belt (708) is arranged between the driving wheel (706) and the driven wheel (707), and a clamping piece (709) which is fixed with the transmission belt (708) is further arranged below the inserting plate (704); the driving wheel (706) is connected with a driving motor (710) positioned below the bottom plate (701) through a transmission shaft; the bottom of the bottom plate (701) is also provided with a rotary connecting seat (711);
the key box pushing device (8) comprises a mounting plate (801) fixed with the cabinet body (1), a fixed bottom plate (802) is arranged above the mounting plate (801), a sliding rail (803) is arranged above the fixed bottom plate (802), a second sliding block (804) is arranged above the sliding rail (803), and a key box placing frame (805) is arranged above the second sliding block (804); a second driving wheel (806) and a second driven wheel (807) are arranged on the side face of the sliding rail (803), a second transmission belt (808) is arranged between the second driven wheel (807) and the second driving wheel (806), and the second driving wheel (806) is connected with a second driving motor (809) arranged below the fixed bottom plate (802) through a transmission shaft; a second clamping piece (810) matched with a second transmission belt (808) is arranged below the key box placing frame (805);
the key box placing frame (805) comprises a plate body (811) fixed on the second sliding block (804), a bracket (812) is arranged above the plate body (811), and a fixing rod (813) matched with the key box (3) is arranged above the bracket (812).
2. A smart key cabinet for a power plant according to claim 1, wherein: a drawer box (10) is arranged below the cabinet body (1), and a spare key is arranged in the drawer box (10).
3. A smart key cabinet for a power plant according to claim 1, wherein: the key box fixing frame (2) comprises a mounting plate (201) fixed on the side wall of the cabinet body (1), and a plurality of groups of supporting frames are uniformly distributed on the mounting plate (201); the support frame comprises two support rods (202) which are distributed in parallel.
4. A smart key cabinet for a power plant according to claim 1, wherein: the horizontal moving device (4) comprises a vertical connecting rod (401), an upper guide rail (402) and a lower guide rail (403) are respectively arranged at the upper end and the lower end of the vertical connecting rod (401), and the upper guide rail (402) and the lower guide rail (403) are respectively arranged at the two sides of the vertical connecting rod (401); the upper end of the vertical connecting rod (401) is also provided with a driven guide wheel (404) which is matched with the upper guide rail (402), the lower end of the vertical connecting rod (401) is provided with a driving guide wheel (405) which is matched with the lower guide rail (403), and the driving guide wheel (405) is connected with a horizontal driving motor (406) through a rotating shaft.
5. The smart key cabinet for a power plant of claim 4, wherein: the vertical moving device (5) comprises a toothed transmission belt (501) arranged at one side of the vertical connecting rod (401), and a driving mechanism (502) is arranged on the toothed transmission belt (501); the driving mechanism comprises a shell (503), guide wheels (504) are arranged at the upper end and the lower end in the shell (503), a driving gear (505) meshed with the toothed transmission belt (501) is arranged in the shell (503), the driving gear (505) is connected with a transmission motor (506) through a transmission shaft, and the transmission motor (506) is fixed on the outer side of the shell (503).
6. A smart key cabinet for a power plant according to claim 1, wherein: the key box steering device (6) comprises a connecting plate (601) fixed on the vertical moving device (5), a rotating motor (602) is arranged on the connecting plate (601), and an output shaft of the rotating motor (602) is connected with the bottom of the key box inserting and taking device (7).
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CN109805637B true CN109805637B (en) | 2023-06-06 |
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CN113017287B (en) * | 2021-03-23 | 2022-06-24 | 国网河北省电力有限公司沧州供电分公司 | Finance cabinet |
CN113907542B (en) * | 2021-09-30 | 2023-08-29 | 远大工控技术(杭州)有限公司 | Intelligent key cabinet convenient to key access management |
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