阅读说明：本技术 保存柜 (Storage cabinet ) 是由 李琨 于 2018-08-24 设计创作，主要内容包括：本公开涉及一种保存柜,包括：箱架,限定多个容纳空间；背板,安装在所述箱架上或与所述箱架一体成型,封闭所述多个容纳空间的后端；多个箱体,每个箱体设置在对应的容纳空间内；多个丝杠,每个丝杠沿前后方向延伸,每个丝杠绕自身轴线可转动地安装在所述背板上,并且与对应的箱体形成螺纹配合；驱动机构,能够选择性地与任一丝杠传动连接以驱动该丝杠旋转,从而推动或拉动与该丝杠对应的箱体。通过上述技术方案,能够保证一次只能打开一个箱体,不会存在开箱错乱的可能,避免存放的物品被误拿或偷拿,提高了存放管理的安全性。(The present disclosure relates to a holding cabinet, including: a box frame defining a plurality of receiving spaces; a back plate mounted on the box frame or integrally formed with the box frame to close rear ends of the plurality of accommodating spaces; a plurality of box bodies, each box body is arranged in the corresponding accommodating space; the lead screws extend along the front-back direction, and are rotatably arranged on the back plate around the axes of the lead screws and are in threaded fit with the corresponding box bodies; and the driving mechanism can be selectively in transmission connection with any lead screw to drive the lead screw to rotate, so that the box body corresponding to the lead screw is pushed or pulled. Through above-mentioned technical scheme, can guarantee once only to open a box, can not have the possibility of unpacking in disorder, avoid the article of depositing to be taken by mistake or steal and take, improved the security of depositing the management.)

1. A holding cabinet, comprising:

a box frame (1) defining a plurality of accommodation spaces;

a back plate (2) mounted on the box frame (1) or integrally formed with the box frame (1) and closing rear ends of the plurality of accommodating spaces;

a plurality of box bodies (3), wherein each box body (3) is arranged in the corresponding accommodating space;

the lead screws (4) extend in the front-back direction, and each lead screw (4) is rotatably arranged on the back plate (2) around the axis of the lead screw (4) and forms threaded fit with the corresponding box body (3);

and the driving mechanism can be selectively in transmission connection with any one lead screw (4) to drive the lead screw (4) to rotate so as to push or pull the box body (3) corresponding to the lead screw (4).

2. Holding cabinet according to claim 1, characterized in that a spindle gear (5) is mounted on or integrated into each spindle (4), the drive mechanism being selectively engageable with a spindle gear (5) on any one of the spindles (4) for driving the spindle (4) in rotation.

3. The holding cabinet according to claim 2, characterized in that the drive mechanism comprises a gear support (8) and a first gear (10), the gear support (8) being translatable along and rotatable about a first axis (E-E), the first gear (10) being mounted on the gear support (8), the axis of the first gear (10) being parallel to the first axis (E-E), the first gear (10) being movable with the gear support (8) to selectively mesh with the screw gear (5) on either screw (4).

4. The holding cabinet according to claim 3, wherein the gear support (8) is connected to the back plate (2) by a cylindrical pair, the first axis (E-E) being the axis of the cylindrical pair.

5. The holding cabinet according to claim 4, wherein the gear support (8) and the first gear (10) are driven in rotation by the same motor.

6. The holding cabinet according to claim 5, wherein the drive mechanism further comprises a motor (6) and a second gear (7), the motor (6) being adapted to drive the second gear (7) in rotation, an inner gear ring being formed on the gear support (8), the gear support (8) being translatable along the first axis (E-E) between a first position and a second position,

in the first position, the second gear (7) is in driving connection with the first gear (10), the first gear (10) is engaged with a lead screw (4) so that the lead screw (4) engaged with the first gear (10) can be driven to rotate by the motor (6);

in the second position, the second gear (7) is in transmission connection with an inner gear ring of the gear support seat (8), and the first gear (10) is disconnected with the lead screw (4) so as to drive the gear support seat (8) to rotate through the motor (6).

7. The holding cabinet according to claim 6, wherein the drive mechanism further comprises a third gear (9), the third gear (9) being mounted on the gear support (8), the third gear (9) having an inner gear ring and an outer gear ring, the outer gear ring of the third gear (9) being in mesh with the first gear (10),

in the first position, the second gear (7) is in mesh with an annulus gear of the third gear (9);

in the second position, the second gear (7) is engaged with the inner gear ring of the gear support base (8).

8. The holding cabinet according to claim 7, wherein the gear support base (8) comprises a first support plate (81), a second support plate (82), and a connecting portion (83), the first supporting plate (81) and the second supporting plate (82) are arranged in parallel at intervals, the first supporting plate (81) and the second supporting plate (82) are connected through the connecting part (83), the ring gear being formed on the first support plate (81), the first gear (10) being mounted on the first support plate (81) and located on a side of the first support plate (81) facing the second support plate (82), the third gear (9) is mounted on the second support plate (82) and is located on a side of the second support plate (82) facing the first support plate (81), the second supporting plate (82) is connected with the back plate (2) through the cylindrical pair.

9. The holding cabinet according to claim 6, wherein the driving mechanism further comprises an electromagnet (11) and a spring (12), the electromagnet (11) is used for generating a magnetic attraction force to attract the gear support (8), the spring (12) is used for applying an elastic force to the gear support (8) in a direction opposite to the magnetic attraction force, and when the electromagnet (11) is energized, the electromagnet (11) drives the gear support (8) to move from the first position to the second position; when the electromagnet (11) is powered off, the spring (12) drives the gear supporting seat (8) to move from the second position to the first position.

10. The storage cabinet according to claim 9, wherein the back plate (2) comprises a back plate body (21) and a bracket (22) disposed on the back plate body (21), the back plate body (21) closes a rear end of the accommodating space, a cylinder (84) is formed on the gear supporting seat (8), a circular hole is formed on the bracket (22), the cylinder (84) penetrates through the circular hole to form the cylinder pair, the electromagnet (11) is mounted on the bracket (22) and has a through hole (111) for the cylinder (84) to pass through, the spring (12) is sleeved on the cylinder (84), one end of the spring (12) abuts against the bracket (22), and the other end abuts against the gear supporting seat (8).

11. The cabinet according to claim 4, wherein a plurality of positioning holes (221) are provided on the outer side surface of the back plate (2), the positioning holes (221) are spaced around the axis of the cylindrical pair, the positioning holes (221) correspond to the lead screws (4) one by one, and positioning posts (85) are provided on the gear support base (8), and when the first gear (10) is engaged with the lead screw gear (5) on the lead screw (4), the positioning posts (85) are inserted into the positioning holes (221) corresponding to the lead screws (4).

12. Holding cabinet according to claim 1, characterized in that the cabinets (3) of the holding cabinet are distributed around the drive mechanism.

Technical Field

The present disclosure relates to a holding cabinet, especially a consumable holding cabinet.

Background

The utility model discloses a chinese utility model patent that application number is 201720240682.2 discloses a cabinet is kept to intelligence, should keep the cabinet and include the cabinet body, the door body and tool to lock, still include backstage control center and with the handheld machine that backstage control center communication is connected, the tool to lock includes lock core and key, the lock core has mechanical lock subassembly and electronic lock subassembly, the key have with mechanical lock subassembly complex tartar and with electronic lock subassembly complex communication module, communication module with handheld machine communication is connected.

Besides the key matched with the mechanical lock assembly, the unlocking person needs to contact the background control center through the hand-held set, the background control center provides the unlocking code for the hand-held set, and the hand-held set provides the unlocking code for the communication module on the key to realize the unlocking action. The storage cabinet in the form can not ensure that only one box can be opened at a time, and the possibility of messy door opening is caused.

Disclosure of Invention

The utility model aims at providing a save cabinet, this save cabinet can avoid opening the door the condition in disorder to take place.

In order to achieve the above object, the present disclosure provides a holding cabinet, comprising:

a box frame defining a plurality of receiving spaces;

a back plate mounted on the box frame or integrally formed with the box frame to close rear ends of the plurality of accommodating spaces;

a plurality of box bodies, each box body is arranged in the corresponding accommodating space;

the lead screws extend along the front-back direction, and are rotatably arranged on the back plate around the axes of the lead screws and are in threaded fit with the corresponding box bodies;

and the driving mechanism can be selectively in transmission connection with any lead screw to drive the lead screw to rotate, so that the box body corresponding to the lead screw is pushed or pulled.

Optionally, a screw gear is mounted on or integrally formed with each screw, and the driving mechanism can be selectively engaged with the screw gear on any screw to drive the screw to rotate.

Optionally, the drive mechanism comprises a gear support base translatable along and rotatable about a first axis, and a first gear mounted on the gear support base, the first gear having an axis parallel to the first axis, the first gear being movable with the gear support base to selectively engage a lead screw gear on either lead screw.

Optionally, the gear supporting seat is connected to the back plate through a cylindrical pair, and the first axis is an axis of the cylindrical pair.

Optionally, the gear supporting seat and the first gear are driven to rotate by the same motor.

Optionally, the driving mechanism further includes a motor and a second gear, the motor is used for driving the second gear to rotate, an inner gear ring is formed on the gear support seat, the gear support seat can translate along the first axial direction between a first position and a second position, in the first position, the second gear is in transmission connection with the first gear, and the first gear is engaged with a lead screw so as to drive the lead screw engaged with the first gear to rotate through the motor; and at the second position, the second gear is in transmission connection with the inner gear ring of the gear supporting seat, and the first gear is separated from the lead screw so as to drive the gear supporting seat to rotate through the motor.

Optionally, the driving mechanism further comprises a third gear, the third gear is mounted on the gear support base, the third gear has an inner gear ring and an outer gear ring, the outer gear ring of the third gear is engaged with the first gear, and in the first position, the second gear is engaged with the inner gear ring of the third gear; and in the second position, the second gear is meshed with the inner gear ring of the gear supporting seat.

Optionally, the gear supporting seat includes a first supporting plate, a second supporting plate and a connecting portion, the first supporting plate and the second supporting plate are disposed at a parallel interval, the first supporting plate and the second supporting plate are connected through the connecting portion, the ring gear is formed on the first supporting plate, the first gear is installed on the first supporting plate and located on one side of the first supporting plate facing the second supporting plate, the third gear is installed on the second supporting plate and located on one side of the second supporting plate facing the first supporting plate, and the second supporting plate is connected to the backboard through a cylindrical pair.

Optionally, the driving mechanism further comprises an electromagnet and a spring, the electromagnet is used for generating magnetic attraction to attract the gear support seat, the spring is used for applying an elastic force to the gear support seat, the direction of the elastic force is opposite to that of the magnetic attraction, and when the electromagnet is electrified, the electromagnet drives the gear support seat to move from the first position to the second position; when the electromagnet is powered off, the spring drives the gear supporting seat to move from the second position to the first position.

Optionally, the backplate includes the backplate body and sets up the support on the backplate body, the backplate body seals accommodation space's rear end, be formed with the cylinder on the gear supporting seat, be formed with the round hole on the support, the cylinder is worn to locate the round hole is in order to form the cylinder is vice, the electro-magnet is installed on the support and have the confession the through-hole that the cylinder passed, the spring housing is established on the cylinder, the one end of spring with the support offsets, the other end with the gear supporting seat offsets.

Optionally, a plurality of positioning holes are formed in the outer side surface of the back plate, the positioning holes are arranged around the axis of the cylindrical pair at intervals, the positioning holes correspond to the lead screws one by one, positioning columns are arranged on the gear supporting seat, and when the first gear is meshed with the lead screw gear on the lead screw, the positioning columns are inserted into the positioning holes corresponding to the lead screws.

Optionally, the enclosures of the holding cabinet are distributed around the drive mechanism.

Through above-mentioned technical scheme, can guarantee once only to open a box, can not have the possibility of unpacking in disorder, avoid the article of depositing to be taken by mistake or steal and take, improved the security of depositing the management.

Additional features and advantages of the disclosure will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:

FIG. 1 is a perspective view from one perspective of a holding cabinet according to one embodiment of the present disclosure;

FIG. 2 is a perspective view from another perspective of a holding cabinet according to one embodiment of the present disclosure;

FIG. 3 is a perspective view of yet another perspective of a holding cabinet according to one embodiment of the present disclosure;

FIG. 4 is a front view of a holding cabinet according to one embodiment of the present disclosure;

FIG. 5 is a perspective view of a gear support base in a holding cabinet according to one embodiment of the present disclosure;

FIG. 6 is a side view of a holding cabinet according to one embodiment of the present disclosure with the gear support in a first position;

FIG. 7 is a rear view of a holding cabinet according to one embodiment of the present disclosure, with the gear support base in a first position;

FIG. 8 is a cross-sectional view taken along A-A in FIG. 7;

fig. 9 is an enlarged view of portion B of fig. 8;

FIG. 10 is a side view of a holding cabinet according to one embodiment of the present disclosure with the gear support in a second position;

FIG. 11 is a rear view of a holding cabinet according to one embodiment of the present disclosure, with the gear support base in a second position;

FIG. 12 is a cross-sectional view taken along C-C in FIG. 11;

fig. 13 is an enlarged view of a portion D in fig. 12.

Description of the reference numerals

1 case frame 2 backboard

21 backboard body 22 support

211 locating hole 3 box

4 leading screw and 5 leading screw gears

6 electric machine 7 second gear

8 first supporting plate of gear supporting seat 81

82 second support plate 83 connecting part

84 cylinder 85 positioning column

9 third gear 10 first gear

11 electromagnet 111 through hole

12 spring

Detailed Description

The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.

In the present disclosure, the use of directional words such as "front and rear" in general, without a contrary explanation, refers to the front and rear as indicated by the corresponding reference numerals, and the use of such directional words is merely for describing the present disclosure and should not be taken as limiting the present disclosure.

As shown in fig. 1 to 4, the present disclosure provides a holding cabinet including a cabinet frame 1, a back plate 2, a plurality of cabinet bodies 3, a plurality of lead screws 4, and a driving mechanism.

The case 3 is used to store articles such as consumables and the like. The box frame 1 is used for supporting and containing the box bodies 3, a plurality of containing spaces are defined in the box frame 1, the containing spaces correspond to the box bodies 3 one to one, and each box body 3 is arranged in the corresponding containing space.

The back panel 2 is mounted on the rear portion of the box frame 1 or is integrally formed with the box frame 1, and the back panel 2 closes the rear ends of the plurality of accommodating spaces so that the accommodating spaces are formed as accommodating spaces with open front ends and closed rear ends.

The lead screws 4 extend in the front-rear direction and correspond to the cases 3 one by one, and each lead screw 4 is rotatably mounted on the back plate 2 about its own axis and forms a screw-thread fit with the corresponding case 3. That is, the screw 4 and the case 3 form a screw 4-nut mechanism, and the case 3 serves as a nut in the screw 4-nut mechanism. Specifically, an internal thread matched with the lead screw 4 may be processed on the box 3, and a nut matched with the lead screw 4 may also be disposed on the box 3, which is not limited by the present disclosure. The spindle 4 can be mounted on the back plate 2, for example, by means of bearings.

The driving mechanism can be selectively in transmission connection with any one of the lead screws 4 to drive the lead screw 4 to rotate, so that the box body 3 corresponding to the lead screw 4 is pushed forwards or pulled backwards.

Through above-mentioned technical scheme, can guarantee once only to open a box, can not have the possibility of unpacking in disorder, avoid the article of depositing to be taken by mistake or steal and take, improved the security of depositing the management.

There are various embodiments for realizing that the driving mechanism selectively forms a transmission connection with any one of the lead screws 4, and the disclosure is not limited thereto. In one embodiment, each lead screw 4 is connected to a power source (e.g., a motor) through a respective transmission path, each transmission path is provided with an electromagnetic clutch, when one lead screw 4 needs to be driven to rotate, the power source is started, and the electromagnetic clutch corresponding to the lead screw 4 is engaged, and the other electromagnetic clutches are kept in an off state.

To facilitate driving the lead screws 4 in rotation, in one embodiment, as shown in fig. 2 and 3, each lead screw 4 is provided with a lead screw gear 5, and the driving mechanism can be selectively engaged with the lead screw gear 5 on any one lead screw 4 to drive the lead screw 4 in rotation. Specifically, the lead screw gear 5 may be mounted on the lead screw 4 by key connection, welding, or the like, or may be integrally formed with the lead screw 4, which is not limited in this disclosure. In this case, the spindle gears 5 on the individual spindles 4 can lie in the same plane perpendicular to the spindles 4.

The drive mechanism may have any suitable construction. In one embodiment, as shown in fig. 2 and 3, the driving mechanism may include a gear support 8 and a first gear 10, the gear support 8 may be capable of translating along and rotating about a first axis E-E (see fig. 9 and 13) parallel to the lead screws 4, the first axis E-E being equidistant from each of the lead screws 4, the first gear 10 may be mounted on the gear support 8, the first gear 10 may have an axis parallel to the first axis E-E, and the first gear 10 may not only be capable of rotating but also be capable of moving with the gear support 8 to selectively form a mesh with the lead screw gear 5 on any of the lead screws 4. In this case, when it is necessary to switch the first gear 10 from a state of meshing with one lead screw gear 5 (first lead screw gear) to a state of meshing with the other lead screw gear 5 (second lead screw gear), the first gear support 8 may be translated along the first axis E-E to disengage the first gear 10 from the first lead screw gear, then the drive gear support 8 may be rotated about the first axis E-E to move the first gear 10 to the same phase angle as the second lead screw gear, and then the drive gear support 8 may be parallel along the first axis to engage the first gear 10 with the second lead screw gear.

To facilitate rotation and translation of the gear support 8, in one embodiment, as shown in fig. 8, 9, 12 and 13, the gear support 8 may be connected to the backplate 2 by a cylindrical pair, the first axis being the axis of the cylindrical pair. The cylindrical pair is one kind of kinematic pair, which is composed of a revolute pair and a prismatic pair, and thus has two degrees of freedom, one rotational degree of freedom and one prismatic degree of freedom, and the rotational axis and the prismatic axis are collinear.

The gear support 8 and the first gear 10 may be rotated by different motors, for example, the gear support 8 may be rotated by one motor and the first gear 10 may be rotated by the other motor. However, in order to reduce the number of motors, simplify the structure, and reduce the cost, in one embodiment, the gear support base 8 and the first gear 10 may be driven to rotate by the same motor.

To this end, in one embodiment, as shown in fig. 8, 9, 12 and 13, the driving mechanism may further include a motor 6 and a second gear 7, the motor 6 is mounted on the box frame 1 or the back plate 2, the second gear 7 is mounted on a motor shaft of the motor 6, an inner gear ring is formed on the gear support 8, an axis of the inner gear ring coincides with the first axis, and the gear support 8 is capable of translating between the first position and the second position along the first axis E-E. As shown in fig. 8 and 9, in the first position, the second gear 7 is in driving connection with the first gear 10, and the first gear 10 is engaged with one of the lead screws 4, so that the lead screw 4 engaged with the first gear 10 can be driven to rotate by the motor 6. As shown in fig. 12 and 13, in the second position, the second gear 7 is in transmission connection with the inner gear ring of the gear support 8, and the first gear 10 is disengaged from the lead screw 4 to enable the gear support 8 to be driven to rotate by the motor 6. The first position may be closer to the backplate body 21 of the backplate 2 than the second position.

That is, the axial position of the second gear 7 is unchanged, and the second gear 7 is selectively brought into driving connection with the first gear 10 or the ring gear of the gear support 8 by changing the axial position of the gear support 8 (switching between the first position and the second position). As shown in fig. 9, when the second gear 7 is in transmission connection with the first gear 10, power is transmitted along the path of "motor 6-second gear 7-first gear 10-lead screw gear 5" to drive the lead screw 4 engaged with the first gear 10 to rotate. As shown in fig. 13, when the second gear 7 is in transmission connection with the inner gear ring of the gear support 8, power is transmitted along the path of the motor 6, the second gear 7 and the gear support 8 to drive the gear support 8 to rotate.

Here, the second gear 7 and the inner gear ring of the gear support 8 may be directly meshed to form a driving connection. The second gear 7 can be directly meshed with the first gear 10, and can also be in transmission connection with the first gear 10.

In one embodiment, the driving mechanism may further include a third gear 9, as shown in fig. 2, 3, 9 and 13, the third gear 9 is mounted on the gear support base 8, an axis of the third gear 9 coincides with the first axis, the third gear 9 has an inner gear ring and an outer gear ring coaxially arranged, and the outer gear ring of the third gear 9 is engaged with the first gear 10. In this case, as shown in fig. 9, when the gear support base 8 is in the first position, the second gear 7 is engaged with the ring gear of the third gear 9. As shown in fig. 13, when the gear support base 8 is in the second position, the second gear 7 is engaged with the ring gear of the gear support base 8. Thereby, the second gear 7 is engaged with the ring gear regardless of the first position or the second position, so that the design and manufacture of the second gear 7 can be facilitated.

The gear support 8 may be driven in translation by any suitable means, such as a linear motor 6, an air cylinder, etc., and the disclosure is not limited thereto. In one embodiment, as shown in fig. 9 and 13, the driving mechanism may further include an electromagnet 11 and a spring 12, the electromagnet 11 generating a magnetic attraction force to attract the gear support 8, and the spring 12 applying an elastic force to the gear support 8 in a direction opposite to the magnetic attraction force. When the electromagnet 11 is electrified, the electromagnet 11 drives the gear support seat 8 to move from the first position to the second position against the elastic force of the spring 12; when the electromagnet 11 is de-energized, the spring 12 drives the gear support base 8 to move from the second position to the first position.

In order to facilitate the installation of the gear supporting seat 8, in an embodiment, as shown in fig. 2 and fig. 3, the backboard 2 includes a backboard body 21 and a bracket 22 disposed on the backboard body 21, the backboard body 21 closes the rear end of the accommodating space, a cylinder 84 is formed on the gear supporting seat 8, a round hole is formed on the bracket 22, the cylinder 84 penetrates through the round hole to form a cylinder pair, the electromagnet 11 is installed on the bracket 22 and has a through hole 111 for the cylinder 84 to pass through, the spring 12 is sleeved on the cylinder 84, one end of the spring 12 abuts against the bracket 22, and the other end abuts against the gear supporting seat 8.

The gear support 8 may have any suitable configuration and the disclosure is not limited thereto. In one embodiment, as shown in fig. 5, the gear supporting seat 8 may include a first supporting plate 81, a second supporting plate 82 and a connecting portion 83, the first supporting plate 81 and the second supporting plate 82 are spaced apart and are parallel to the backboard body 21, the first supporting plate 81 is closer to the backboard body 21 than the second supporting plate 82, and the first supporting plate 81 and the second supporting plate 82 are connected by the connecting portion 83. In this case, the ring gear is formed on the first support plate 81, the first gear 10 is mounted on the first support plate 81 and located on the side of the first support plate 81 facing the second support plate 82, the third gear 9 is mounted on the second support plate 82 and located on the side of the second support plate 82 facing the first support plate 81, the cylinder 84 is formed on the side of the second support plate 82 facing away from the first support plate 81, and the axis of the cylinder 84, the axis of the ring gear of the third gear 9, and the axis of the ring gear of the gear support base 8 coincide.

Further, in one embodiment, as shown in fig. 9 and 13, a plurality of positioning holes 211 are provided on the outer side surface of the back plate body 21, the plurality of positioning holes 211 are provided at intervals around the axis of the cylindrical pair, the positioning holes 211 correspond to the lead screws 4 one by one, positioning posts 85 are provided on the first supporting plate 81, and when the first gear 10 is engaged with the lead screw gear 5 on the lead screw 4, the positioning posts 85 are inserted into the positioning holes 211 corresponding to the lead screws 4 to perform a positioning function, so as to prevent the gear supporting seat 8 from being displaced.

The present disclosure does not limit the number of the cases 3. In one embodiment, as shown in fig. 4, the holding cabinet comprises four cases 3 arranged in two rows and two columns, the driving mechanism is arranged in the center of the back plate 2, and the four cases 3 are distributed around the driving mechanism.

The operation principle of the preservation cabinet according to an embodiment of the present disclosure is briefly described below with reference to the accompanying drawings.

The drive mechanism has two states, one is a drive state in which the housing 3 is driven to move forward or backward, and the other is a switching state in which switching is performed between different lead screw gears 5.

As shown in fig. 6 to 9, in the working state, the electromagnet 11 is in the power-off state, the gear support 8 is pushed forward under the action of the spring 12, at this time, the second gear 7 is meshed with the inner gear ring of the third gear 9, the outer gear ring of the third gear 9 is meshed with the first gear 10, and the first gear 10 is meshed with the lead screw gear 5. At the moment, the transmission of a group of gears of 'second gear 7-third gear 9-first gear 10-lead screw gear 5' is achieved, under the action of each gear, the second gear 7 can drive the lead screw 4 to rotate, and the lead screw 4 rotates to drive the box body 3 to move back and forth.

As shown in fig. 10 to 13, in the switching state, the electromagnet 11 is energized to drive the gear support 8 to move backward, the inner gear ring of the gear support 8 is engaged with the second gear 7, and the first gear 10 is also disengaged from the lead screw gear 5. Under the drive of the second gear 7, the gear support 8 starts to rotate, rotates to the position of the screw gear 5 corresponding to the box 3 to be opened, then the electromagnet 11 is powered off, the gear support 8 is pushed forward under the action of the spring 12, the positioning column 85 on the gear support 8 is inserted into the positioning hole 211 on the backboard 2, and the operation of the working state is repeated.

The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.

It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. In order to avoid unnecessary repetition, various possible combinations will not be separately described in this disclosure.

In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.