CN218967689U - Electronic cipher barrel - Google Patents

Abstract

The utility model discloses an electronic password barrel, which comprises: a barrel body and a barrel cover, and a lock component arranged in the barrel cover; the lock assembly is characterized by comprising a motor, a transmission part and a lock tongue; the motor is arranged in the barrel cover; the transmission part is respectively connected with the motor and the lock tongue and is used for converting the rotary motion of the motor into linear motion and driving the lock tongue to be converted into a locking state and an unlocking state. The electronic password barrel solves the problems that a storage battery in the existing password barrel needs to be charged frequently and the storage battery is damaged, so that the cover cannot be opened. The electronic password barrel has the advantages of simple and reasonable structure and good sealing performance.

Description

Electronic cipher barrel

Technical Field

The utility model relates to an electronic password barrel, in particular to an electronic password barrel for a sample collection packaging system, and belongs to the technical field of sample preparation equipment.

Background

In a power plant environment, drums are often used to store some solid mineral material for ease of transportation. According to the characteristics of the contained substances, the barrel is required to have certain tightness and anti-theft property so as to prevent the evaporation of moisture of the contained substances and the safety of the transportation process of the contained substances, and meanwhile, the barrel is required to have the functions of being used on-line and on automatic equipment. For example, in a power plant, for collection, transportation, etc. of a coal sample, in order to avoid volatilization of water content of the coal sample and contact of personnel with the sample, a barrel for containing the sample is required to have certain tightness and anti-theft function. In order to facilitate automatic production, the barrel also needs to have the function of online butt joint with equipment such as online sample preparation, sample collection, sample storage and the like. An electronic cryptographic bucket with a chip is thus a goal pursued by those skilled in the art.

CN107600692a discloses a barrel with a coded cover, which comprises a barrel body, a barrel cover and a control component for controlling the opening and locking of the barrel cover and the barrel body, wherein an installation cavity for installing the control component is arranged in the barrel cover, and the control component is provided with a magnetic card sensing part capable of sensing a magnetic card unlocking signal; a locking assembly mounted within the mounting cavity; the movable assembly is arranged in the mounting cavity, connected with the locking assembly and capable of moving the locking assembly up and down; the remote controller receiver is arranged in the mounting cavity, connected with the control component and used for receiving unlocking signals sent by the remote controller and sending signals to the control component so as to control the movable component to move downwards to enable the locking component to be opened. The password barrel is suitable for off-line use, and has the following defects:

1. the moving assembly is arranged at the center of the top cover cavity and comprises a moving slide block, a pulling plate, an electromagnet and a reset spring; the four groups of locking components are arranged around the moving component and comprise a lock seat, a locking block, a pin shaft, a locking spring and a check ring; namely, the locking structure of the barrel cover and the barrel body is complex, the failure rate is high, and the maintenance cost is high.

2. The magnetic card sensing part is arranged at the edge of the cover, so that the feasibility and convenience of use on the automatic equipment are poor; the lock seat is arranged at the outer edge of the barrel body, the lock block is arranged at the inner side of the barrel cover, namely, the locking position of the barrel cover and the barrel body is arranged on the outer wall of the barrel, and the anti-theft effect is poor;

3. the control component in the barrel cover is always in a charged state, so that the storage battery consumes fast electricity, has short endurance time and is charged frequently;

4. the joint of the barrel cover and the barrel body is a locking position, so that the sealing performance is poor, the barrel cover can not be used for storing articles needing to be stored in a sealing mode, and particularly for coal samples, the detection quality can be affected by water loss.

Accordingly, applicant 2019200860487 discloses an electronic combination bucket comprising: the barrel comprises a barrel cover, a barrel body, a locking assembly arranged between the barrel cover and the barrel body, and a control assembly for controlling the locking assembly to be opened and locked; the control component comprises a code reader capable of sensing unlocking signals; the method is characterized in that: the barrel cover comprises an upper cover plate, a lower cover plate and coamings surrounding the upper cover plate and the lower cover plate, and the upper cover plate, the lower cover plate and the coamings form a cavity for accommodating the power supply device and the circuit board of the locking component and the control component; the code reader is arranged at the central position on the upper surface of the upper cover plate. The automatic online use is convenient to realize; can also be used manually on line. The electronic password barrel solves the problems that the existing password barrel is complex in structure, the control assembly is always in a charged state and the power consumption of the storage battery is high, but the two electronic password barrels are both required to be sensed by a magnetic card and are provided with the control assembly in the barrel, and the control assembly is controlled to be opened and closed, and the storage battery is still required to be arranged in the barrel and used for supplying power to the control assembly during working. Therefore, once the storage battery is damaged, the storage battery cannot be charged, and the password barrel cannot be opened.

Therefore, an electronic password barrel which is suitable for being used on line and has simple structure, no magnetic card induction and no storage battery for supplying power to a control assembly, high anti-theft performance and good sealing performance is a target pursued by a person skilled in the art.

Disclosure of Invention

The utility model aims to solve the problems that the existing electronic password barrel needs magnetic card induction and a control component to control unlocking, and meanwhile, a storage battery is needed to supply power to the control component, so that the cover cannot be opened once the storage battery is damaged.

The utility model further aims to solve the problem that the existing electronic coded lock is poor in sealing performance.

The utility model adopts the following technical scheme to realize the aim: an electronic combination bucket, comprising: a barrel body and a barrel cover, and a lock component arranged in the barrel cover; the lock assembly is characterized by comprising a motor, a transmission part and a lock tongue; the motor is arranged in the barrel cover; the transmission part is respectively connected with the motor and the lock tongue and is used for converting the rotary motion of the motor into linear motion and driving the lock tongue to be converted into a locking state and an unlocking state.

As a preferable scheme, the upper surface of the barrel cover is provided with two groups of conductive contact pieces which are arranged in a ring shape, and the conductive contact pieces are electrically connected with leads of the motor.

Preferably, the barrel body comprises a cylindrical barrel body for containing substances, a cylindrical barrel neck part with a diameter smaller than that of the barrel body, and a lock seat part connected between the barrel body and the barrel neck part;

the barrel cover comprises: the cover body is in a cylindrical or conical shape with an open upper end and is matched with the barrel neck, and the cover body is arranged in the barrel neck; a cover plate is arranged on the cover body, and a cavity for accommodating the lock component is formed by the cover plate and the cover body.

Preferably, the transmission component includes: a rotary table which can be rotatably arranged at the central position on the bottom plate of the cover body, 2-4 connecting rods are uniformly and symmetrically hinged with the edges of the rotary table respectively, and the other ends of the connecting rods are hinged with the lock tongue; the shaft end part of the motor is connected with the turntable and drives the turntable to rotate; and holes for the bolts to extend out are formed in the positions, corresponding to the bolts, of the cover body.

Preferably, the transmission part further comprises a mounting seat, and the mounting seat is arranged above the central position of the bottom plate of the cover body; the middle of the mounting seat is provided with a circular mounting hole, the lower part of the turntable is provided with a coaxial shaft sleeve part, and the shaft sleeve part can be rotatably arranged in the mounting hole.

As a preferred scheme, wherein 2-4 bolt guiding parts are arranged at positions corresponding to the bolts around the bottom of the cover body, and the bolt guiding parts comprise: the upper surface of the spring bolt support is provided with a semi-cylindrical surface, a sleeve is arranged on the semi-cylindrical surface of the spring bolt support, and the sleeve is fixed with the spring bolt support through a sleeve pressing block; the lock tongue is arranged in the sleeve and moves along the sleeve.

As a preferable scheme, 2-4 uniformly distributed stop struts extending upwards are arranged on the mounting seat, and two side surfaces of each stop strut are limiting surfaces for the turntable to rotate to an unlocking position and a locking position respectively; when the motor drives the turntable to rotate anticlockwise to one side surface of the stop support column, the lock tongue and the connecting rod are in the same linear state, and the lock tongue is in a locking state; when the motor drives the turntable to rotate clockwise to the other side surface of the stop support column, the connecting rod and the lock tongue are bent, and the lock tongue is in an unlocking state.

Preferably, the motor is mounted on the stop support by a motor mounting plate.

As a preferable scheme, the lock seat part is connected between the barrel neck part and the barrel body and is conical; the front end face of the lock tongue is in an inclined plane shape matched with the lock seat part.

Preferably, the upper end of the cover body is provided with a flange for connecting with the cover plate, the lower surface of the flange is provided with an annular groove, and a sealing gasket is arranged in the groove; the top end of the cylindrical barrel neck is provided with an outwards bent upper edge which is used for being matched and sealed with the sealing gasket.

As a preferable scheme, a round cover handle is arranged at the center of the cover plate, and the two groups of conductive contact pieces are arranged on the upper surface of the cover handle in a circular ring shape.

Preferably, the center of the cover handle is provided with an RFID chip.

Preferably, the cover plate has a downwardly extending lower spigot for engagement with the periphery of the cover plate.

By adopting the technical scheme, the direct current motor is directly arranged in the barrel cover, and the motor is used for directly driving the transmission part to drive the lock tongue to move, so that batteries for supplying power to the control assembly and the lock assembly are omitted, the batteries do not need to be charged, and the problem that unlocking cannot be performed due to damage of the batteries is avoided.

The utility model further adopts a preferable scheme that two groups of annular conductive contact pieces are arranged on the upper surface of the barrel cover, so that the upper surface of the barrel cover is particularly convenient to supply power to the motor through the conductive contact pieces, thereby enabling the motor to rotate and driving the transmission part and the lock tongue to act.

The utility model further arranges a rotary table on the center of the bottom plate of the cover body, and the rotary table is respectively hinged at 2-4 symmetrical positions of the rotary table through 2-4 connecting rods, the other ends of the connecting rods are hinged with the lock tongue, and the motor is connected with the rotary table, so that the motor can drive the rotary table to rotate to drive the connecting rods to swing, and the lock tongue can be converted between a locking position and an unlocking position.

The utility model further provides a mounting seat which is connected with the cover body into a whole at the center of the bottom plate of the cover body, the mounting seat is provided with a mounting hole for supporting the turntable, the turntable can be rotatably mounted on the mounting seat, meanwhile, the mounting seat is also provided with 2-4 stopping struts which are used for limiting the conversion of the turntable between a locking position and an unlocking position, and meanwhile, the stopping struts also provide support for the mounting of the motor, namely the motor mounting plate is mounted on the stopping struts.

In order to ensure that the lock tongue is not blocked when the lock tongue is switched between the locking position and the unlocking position, the utility model also provides a lock tongue guide part, and the lock tongue guide part provides a precise linear movement route of the lock tongue through a lock tongue support arranged on the cover body, a sleeve arranged on the lock tongue support and a sleeve pressing block for fixing the sleeve, so that the lock tongue is prevented from being blocked when entering and exiting a hole on the cover body.

The top end of the cover body is further provided with the flange, the flange is used for being connected with the cover plate, the groove is arranged below the flange and used for being provided with the sealing gasket, and meanwhile, the top end of the barrel neck is provided with the upper edge which is bent outwards and matched with the sealing gasket to form a seal, so that the sealing effect is better.

In the utility model, a round cover handle is arranged at the center of the cover plate, the round cover handle is convenient for a robot to grasp, and meanwhile, two groups of conductive contact pieces are arranged on the upper surface of the cover handle, so that unlocking equipment can conveniently supply power to the unlocking equipment.

Therefore, the utility model has reasonable and simple structural layout, particularly, the utility model does not need to arrange a battery for charging, and the problem that the unlocking can not be realized due to the damage of the battery is solved.

Drawings

FIG. 1 is a perspective view of an electronic combination bucket according to the present utility model;

FIG. 2 is a longitudinal cross-sectional view of an electronic combination bucket according to the present utility model;

FIG. 3 is a perspective view of a barrel cover of an electronic code barrel according to the present utility model;

FIG. 4 is a perspective view of a cover and lock assembly of an electronic combination bucket according to the present utility model;

FIG. 5 is a perspective view of a cover and lock assembly of an electronic combination bucket according to the present utility model;

FIG. 6 is a perspective view of a cover and a transmission member of an electronic combination barrel according to the present utility model;

FIG. 7 is a second perspective view of the cover and the transmission member of the electronic combination barrel of the present utility model;

FIG. 8 is a perspective view of a bowl of an electronic combination bucket according to the present utility model;

fig. 9 is a perspective view of a cover of an electronic password barrel according to the present utility model.

Reference numerals illustrate: the novel multifunctional novel barrel comprises a barrel body 1, a barrel body 11, a lock seat part 12, a barrel neck part 13, an upper edge 14 and a handle 15; the barrel cover 2, the cavity 20, the cover body 21, the flange 211, the annular groove 212, the bottom plate 213 and the annular plate 214; cover 22, lower spigot 221, cover handle 222, conductive contact 223, rfid chip 224, opening 225, gasket 25; the lock assembly 3, the motor 31, the motor mounting plate 32, the transmission member 33, the turntable 331, the shaft sleeve 3311, the connecting rod 332, the mounting seat 333, the mounting hole 3331, the stop support 3332, the first limit surface 3333 and the second limit surface 3334; the bolt 34, the bolt guide 35, the bolt support 351, the sleeve 352, the sleeve press 353, the bearing 36.

Detailed Description

The preferred embodiments of the present utility model will be described in detail with reference to the accompanying drawings, but the preferred embodiments should not be used to limit the scope of the present utility model.

Referring to fig. 1-9, there is shown an electronic password barrel of the present utility model comprising: a tub body 1 and a tub cover 2, and a lock assembly 3 provided in the tub cover 2; the utility model is characterized in that the lock assembly 3 comprises a motor 31, a transmission part 33 and a lock tongue 34; the motor 31 is arranged in the barrel cover 2; the transmission part 33 is respectively connected with the motor 31 and the lock tongue 34, and is used for converting the rotary motion of the motor 31 into linear motion and driving the lock tongue 34 to be converted into a locking state and an unlocking state.

In order to conveniently supply power to the motor, two groups of conductive contact pieces 223 are preferably arranged on the upper surface of the barrel cover 2 in a circular ring shape, and the conductive contact pieces 223 are electrically connected with leads of the motor 31. Therefore, when unlocking is required, the power output end of the unlocking device or the unlocking tool is in contact with the conductive contact piece 223, so that power is supplied to the motor 31, and the motor 31 rotationally drives the transmission part 33 and the lock tongue 34 to act. Unlocking is realized. Therefore, the electronic password barrel does not need to be provided with a battery in the barrel, so that the electronic password barrel does not need to be charged frequently with the whole password barrel, and the phenomenon that the unlocking cannot be performed due to the damage of the battery is avoided.

Referring to fig. 1, 2, 3, 8, in particular, wherein the tub 1 comprises: a cylindrical tub body 11 for accommodating a stored substance; a conical lock seat 12 for cooperating with the lock tongue 34, provided between the tub neck 13 and the tub body 11; a cylindrical tub neck 13 for accommodating a lid 21 of the tub lid 2; the top end of the cylindrical barrel neck 13 has an outwardly bent upper edge 14 for mating sealing with a gasket 25 (described in detail below);

the tub cover 2 includes: a cover 21, which is fitted to the tub neck 13, is provided in the tub neck 13 in a cylindrical or conical shape with an open upper end, and includes a cylindrical or conical ring plate 214 and a bottom plate 213 provided at the bottom of the ring plate; a cover 22 is provided above the cover 21 and forms a cavity 20 with the cover 21 for receiving the lock assembly 3.

Referring to fig. 2, 4-7, the lock assembly 3 includes: a motor 31, a motor mounting plate 32, a transmission part 33 and a lock tongue 34; wherein the transmission member 33 includes: a turntable 331, four links 332 and a mounting block 333; the lower part of the turntable 331 is provided with a shaft sleeve part 3311 which is coaxially arranged with the turntable, the shaft sleeve part 3311 can be rotatably arranged at the central position above the bottom plate 213 of the cover body 21, four connecting rods 332 are uniformly and symmetrically hinged with the edges of the turntable 331 respectively, and the other ends of the connecting rods 332 are hinged with the lock tongue 34; the mounting seat 333 is disposed at the center of the bottom plate 213 at the bottom of the cover 21, and is preferably integrally formed with the bottom plate 213; specifically, the middle of the mounting seat 333 has a circular mounting hole 3331, and the shaft sleeve portion 3311 of the turntable 331 is provided in the mounting hole 3331 through a bearing 36; the output shaft of the motor 31 is connected with the hole of the turntable 331, and can be used for driving the turntable 331 to rotate by using a key connection mode or a mode of adopting a special-shaped shaft and a special-shaped hole connection mode; holes for extending the lock tongue 34 are formed in the cover 21 at positions corresponding to the lock tongue 34. The number of the connecting rods 332 and the locking bolts 34 in the present embodiment is 4, and obviously, 3 or 2 can be used instead, and a larger number is not suitable.

Preferably, the lock base 12 is conical; the front end surface of the lock tongue 34 is inclined surface shape matching with the lock seat 12. The free end of the lock tongue 34 can extend or retract from the hole on the cover 21; the front end of the lock tongue is in an inclined plane shape matched with the lock seat part 12.

Referring to fig. 2, 4, 5-7, and 9, in order to make the lock tongue go in and out without jamming, the lock is unlocked flexibly, four lock tongue guiding parts 35 are disposed around the bottom of the cover 21 and at positions corresponding to the lock tongue 34, and the lock tongue guiding parts 35 include: the lock tongue support 351 is arranged at the bottom of the cover body 21, the upper surface of the lock tongue support 351 is a semi-cylindrical surface, the four sleeves 352 are arranged on the lock tongue support 351 and are fixed with the lock tongue support 351 through the sleeve pressing blocks 353, the semi-cylindrical surface matched with the sleeves 352 is arranged below the sleeve pressing blocks 353, and the two connecting lugs are arranged and are used for being fixed with the connecting lugs at two sides of the lock tongue support 351; the locking tongue 34 is disposed within the sleeve 352 and moves along the sleeve 352.

As shown in fig. 2, 4, 5-7 and 9, in order to save installation space and provide a limit for the unlocked and locked state of the lock assembly, it is preferable that there are four uniformly distributed stopper posts 3332 extending upward above the mounting base 333, the stopper posts 3332 providing a limit for the turntable 331 on the one hand and for mounting the motor mounting plate 32 on the other hand, the motor 31 being mounted on the stopper posts 3332 by the motor mounting plate 32. The two side surfaces of the stop support column 3332 are limiting surfaces for rotating the turntable 331 to an unlocking position and a locking position respectively: a first stop surface 3333 and a second stop surface 3334; namely, when the motor 31 drives the turntable 331 to rotate counterclockwise to the first limiting surface 3333 of the stop support column 3332, the lock tongue 34 and the connecting rod 332 are in the same linear state, and the lock tongue 34 is in a locking state; when the motor 31 drives the turntable 331 to rotate clockwise to the second limiting surface 3334 of the stop support 3332, the connecting rod 332 and the lock tongue 34 are bent, and the lock tongue 34 is unlocked.

Referring to fig. 2, in order to make the sealing effect between the tub cover 2 and the tub body 1 more effective, the upper end of the cover 21 has a flange 211 for connection with the cover 22, and an annular groove 212 is formed under the flange 211, and a gasket 25 is disposed in the annular groove 212; the upper edge 14 of the top end of the cylindrical barrel neck 13, which is bent outwards, is sealed in cooperation with the sealing gasket 25.

The cover plate 22 has a downwardly extending lower spigot 221 for engagement with the outer periphery of the cover 21. The lower spigot 221 facilitates positioning of the cover 21 when connected to the cover 22.

In order to facilitate the lifting of the barrel cover by the robot in the automatic operation of the password barrel, preferably, a round cover handle 222 is arranged at the center of the cover plate 22, and two groups of conductive contact pieces 223 are arranged on the upper surface of the cover handle 222 in a ring shape, so that the power supply of the cover opening device is facilitated, and an RFID chip is arranged at the center of the top surface of the cover handle 222. In order not to affect the shielding of the RFID chip signal, the conductive contacts 223 disposed on the inner and outer rings are preferably two semi-circular rings, respectively, i.e., two openings 225 are provided at the diameter of each ring-shaped conductive contact 223.

In order to facilitate manual operation, handles 15 are provided on both sides of the tub 1.

The above description is illustrative of the utility model and is not intended to be limiting, and the utility model is intended to provide an electronic password barrel without a battery inside the barrel, as those skilled in the art will appreciate that many modifications, variations or equivalents may be made without departing from the spirit and scope of the utility model as defined in the appended claims, for example: the number of links of the transmission mechanism and the number of bolts are changed, but all fall within the protection scope of the utility model.

Claims (13)

1. An electronic combination bucket, comprising: a barrel body (1) and a barrel cover (2), and a lock component (3) arranged in the barrel cover (2); the lock assembly (3) is characterized by comprising a motor (31), a transmission part (33) and a lock tongue (34); the motor (31) is arranged in the barrel cover (2); the transmission part (33) is respectively connected with the motor (31) and the lock tongue (34) and is used for converting the rotary motion of the motor (31) into linear motion and driving the lock tongue (34) to be converted into a locking state and an unlocking state.

2. The electronic coded bucket according to claim 1, wherein the upper surface of the bucket cover (2) is provided with two groups of semi-circular conductive contact pieces (223), and the conductive contact pieces (223) are electrically connected with leads of the motor (31).

3. An electronic password barrel as claimed in claim 2, wherein the barrel body (1) comprises a cylindrical barrel body (11) for containing a substance, a cylindrical barrel neck (13) having a smaller diameter than the barrel body (11), and a lock seat (12) connected between the barrel body (11) and the barrel neck (13);

the barrel cover (2) comprises: a cover body (21) which is in a cylindrical or conical shape with an open upper end and is matched with the barrel neck (13), wherein the cover body (21) is arranged in the barrel neck (13); a cover plate (22) is arranged on the cover body (21), and the cover plate (22) and the cover body (21) enclose a cavity (20) for accommodating the lock assembly (3).

4. The electronic combination bucket of claim 3, wherein:

the transmission member (33) includes: a turntable (331) rotatably arranged at the central position on the bottom plate (213) of the cover body (21), 2-4 connecting rods (332) are uniformly and symmetrically hinged with the edges of the turntable (331), and the other ends of the connecting rods (332) are hinged with the lock tongue (34); the shaft end of the motor (31) is connected with the turntable (331) and drives the turntable (331) to rotate; holes for extending the lock tongue (34) are formed in the positions, corresponding to the lock tongue (34), of the cover body (21).

5. The electronic combination bucket of claim 4, wherein:

the transmission part (33) further comprises a mounting seat (333), and the mounting seat (333) is arranged above the central position of the bottom plate (213) of the cover body (21); the middle of the mounting seat (333) is provided with a circular mounting hole (3331), the lower part of the turntable (331) is provided with a coaxial shaft sleeve part (3311), and the shaft sleeve part (3311) can be rotatably arranged in the mounting hole (3331).

6. The electronic combination bucket of claim 5, wherein:

2-4 lock tongue guide parts (35) are arranged at positions, corresponding to the lock tongue (34), on the periphery of the bottom of the cover body (21), and the lock tongue guide parts (35) comprise: the bolt support (351) is arranged at the bottom of the cover body (21), the upper surface of the bolt support (351) is provided with a semi-cylindrical surface, the semi-cylindrical surface of the bolt support (351) is provided with a sleeve (352), and the sleeve (352) is fixed with the bolt support (351) through a sleeve pressing block (353); the lock tongue (34) is arranged in the sleeve (352) and moves along the sleeve (352).

7. The electronic combination bucket of claim 6, wherein:

2-4 uniformly distributed upwards extending stop support posts (3332) are arranged on the mounting seat (333), and two side surfaces of the stop support posts (3332) are limiting surfaces for the turntable (331) to rotate to an unlocking position and a locking position respectively; when the motor (31) drives the turntable (331) to rotate anticlockwise to one side surface of the stop support column (3332), the lock tongue (34) and the connecting rod (332) are in the same linear state, and the lock tongue (34) is in a locking state; when the motor (31) drives the turntable (331) to rotate clockwise to the other side surface of the stop support column (3332), the connecting rod (332) and the lock tongue (34) are bent, and the lock tongue (34) is in an unlocking state.

8. The electronic combination bucket of claim 7, wherein:

the motor (31) is mounted on the stop support (3332) through a motor mounting plate (32).

9. The electronic combination bucket of any of claims 3-8, wherein:

the lock seat part (12) is connected between the barrel neck part (13) and the barrel body (11) and is conical; the front end surface of the lock tongue (34) is in an inclined surface shape matched with the lock seat part (12).

10. The electronic combination bucket of any of claims 3-8, wherein:

the upper end of the cover body (21) is provided with a flange (211) for being connected with the cover plate (22), an annular groove (212) is arranged below the flange (211), and a sealing gasket (25) is arranged in the groove (212); the top end of the cylindrical barrel neck (13) is provided with an outwards bent upper edge (14) for sealing with the sealing gasket (25).

11. The electronic combination bucket of any of claims 3-8, wherein:

the center of the cover plate (22) is provided with a round cover handle (222), and the two groups of conductive contact pieces (223) are arranged on the upper surface of the cover handle (222) in a ring shape.

12. The electronic combination bucket of claim 11, wherein:

an RFID chip is arranged at the center of the cover handle (222).

13. The electronic combination bucket of any of claims 3-8, wherein:

the cover plate (22) has a downwardly extending lower spigot (221) for engagement with the outer periphery of the cover body (21).

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