Internet-of-things intelligent express cabinet facilitating taking

Abstract

The invention discloses an internet-of-things intelligent express cabinet facilitating taking, and relates to the technical field of intelligent express cabinets, the intelligent express cabinet comprises a base, a cabinet body is arranged at the top end of the base, the cabinet body is made of a metal material, a plurality of sets of rectangular grooves are formed in the cabinet body, and each set of rectangular grooves form a storage space for storing articles; a cabinet door is arranged at the opening end of the rectangular groove, a pop-up assembly facilitating placement or taking of articles is arranged in the rectangular groove, and when a user needs to take out the articles from the cabinet body, the cabinet door is opened, a first spring is in a compressed state in an initial state, and the first spring cannot release elasticity through limitation of a clamping assembly; the clamping assembly is controlled to release the elasticity of the first spring, so that the first spring rapidly restores to the original shape, the sliding block and the placing plate are pushed to slide forwards along the sliding groove, the placing plate and the express parcel are popped out together, and a recipient can easily take the parcel.

Description

Technical Field

[0001] The present invention relates to the technical field of intelligent express cabinets, and in particular to an intelligent express cabinet of the Internet of Things that is easy to take out. Background Art

[0002] The smart express cabinet is a device based on the Internet of Things that can identify, temporarily store, monitor and manage items (express mail). It consists of two parts: the cabinet body and the control system. The cabinet body consists of a control box and a large number of storage rooms, while the control system includes electromagnetic locks, item detection sensors, etc. These components are installed in the control box. The storage rooms are distributed around the control box and are used to store mail. Each storage room is equipped with an electromagnetic lock for controlling the opening of the cabinet door and an infrared detection sensor for detecting the status of the storage room. The control system is further composed of an embedded control board, an LCD touch screen, a barcode recognition module, a GPRS module, an item detection sensor, an electromagnetic lock and a host computer. The embedded control board combines with other functional modules to realize operations such as scanning and entering express mail, automatic SMS sending, password verification for picking up items, and uploading of express cabinet status information.

[0003] The patent document with announcement number CN212084276U discloses an IoT express cabinet that is easy to pick up, including a base, a cabinet body, a pallet and an adjustment mechanism; when a user with a shorter height needs to take out items from the top cabinet, the drive motor is turned on, and the drive motor drives the first rotating shaft and the second rotating shaft to rotate synchronously, and the first rotating shaft and the second rotating shaft drive the two lead screws on both sides of the cabinet body to rotate, so that the lead screw cooperates with the copper sleeve on the lead screw to move upward, and the copper sleeve drives the pallet to move upward, and the height of the pallet is adjusted according to the height of the user. When the distance is appropriate, the drive motor is stopped, and the user can then step on the pallet and pick up the goods from the top cabinet.

[0004] When the above patent document is in use, the user stands on the pallet and drives the movement of the pallet to drive the user to move, so as to take the items at a high place. However, in actual use, the user needs to stand on the pallet and adjust the height of the pallet to take the items at a high place in the smart express cabinet. Since the items need to be taken out of the cabinet at a high place, it is not convenient and there are great safety risks when taking out the items. Summary of the invention

[0005] In view of the above problems, an IoT-based smart express cabinet that is easy to pick up is provided, which solves the technical problem of inconvenient items to pick up by providing a pop-up component that is convenient for placing or taking items.

[0006] In order to solve the problems in the prior art, the present invention provides an easy-to-take intelligent express cabinet for the Internet of Things, comprising a base (1), a cabinet body (2) being arranged at the top of the base (1), the cabinet body (2) being made of metal, a plurality of groups of rectangular grooves being provided on the cabinet body (2), each group of rectangular grooves constituting a storage space for storing items, a cabinet door (3) being arranged at the open end of the rectangular groove, a pop-up component (4) being arranged in the rectangular groove for facilitating the placement or taking of items, the pop-up component (4) comprising a placement plate (42) for placing items and an elastic release component for driving the placement plate (42) to pop out, an adjustment component (5) being arranged on the outer side of the cabinet body (2) for facilitating the user to adjust the height according to the height requirement, a shielding component (6) being arranged at the top of the cabinet body (2), the shielding component (6) comprising a shielding plate (65) for shielding rain, snow and sunlight and a buffer component for reducing the impact force of falling rain and snow.

[0007] Preferably, the elastic release component also includes a fixed plate, a slide groove, a slider and a first spring; the fixed plate is arranged in a rectangular groove, and a clamping component for releasing the elasticity of the first spring is arranged on the fixed plate; the slide groove is opened on the fixed plate; the slider is arranged at the bottom of the placement plate, and the slider is slidably arranged in the slide groove; the first spring is arranged on one side of the slider, and the other end of the first spring is connected to the inner wall of the slide groove.

[0008] Preferably, a first limiting column is provided on one side of the sliding block, a second limiting column is provided on the inner wall of the sliding groove, and the first spring is sleeved on the first limiting column and the second limiting column.

[0009] Preferably, the clamping assembly includes a through slot, a rotating shaft, a clamping block, a clamping slot, a second spring and a push handle; the through slot is opened on the fixed plate; the rotating shaft is arranged in the through slot; the clamping block is arranged on the rotating shaft, and one end of the clamping block is provided with an abutment portion; the clamping slot is opened at the bottom of the placement plate, and the abutment portion can be plugged into and cooperate with the clamping slot; the second spring is arranged in the through slot, and one end of the second spring is connected to the clamping block; the push handle is arranged at the other end of the clamping block.

[0010] Preferably, the adjustment assembly includes a support plate; the support plate is movably arranged on the outside of the cabinet, and a driving component for driving the movement of the support plate is arranged on the base.

[0011] Preferably, the driving component includes a first motor, a first rotating rod, a first threaded rod, a second rotating rod and a second threaded rod; the first motor is arranged in the base; the first rotating rod is arranged at the output end of the first motor; the first threaded rod is arranged on one side of the cabinet, and the first rotating rod is connected to the first threaded rod; the second rotating rod is arranged in the base on one side of the first rotating rod, and a synchronization component for driving the second rotating rod to rotate synchronously is arranged on the first rotating rod; the second threaded rod is arranged on the other side of the cabinet, and the second threaded rod is connected to the second rotating rod, and the support plate is arranged on the first threaded rod and the second threaded rod.

[0012] Preferably, the synchronous component includes a first synchronous wheel, a second synchronous wheel and a synchronous belt; the first synchronous wheel is arranged on the first rotating rod; the second synchronous wheel is arranged on the second rotating rod; and the synchronous belt is sleeved on the first synchronous wheel and the second synchronous wheel.

[0013] Preferably, slide rails are provided on both sides of the cabinet, and moving blocks are slidably provided on the slide rails, and the moving blocks are connected to the supporting plate.

[0014] Preferably, an anti-skid layer is attached to the top of the support plate, and the anti-skid layer is made of rubber material.

[0015] Preferably, the buffer component includes a column, a sliding block, a third spring, a connecting plate and a baffle plate; the columns are provided in two groups and are symmetrically arranged on the top of the cabinet; the sliding block is slidably arranged in the column; the third spring is arranged in the column, and one end of the third spring abuts against the sliding block; the connecting plate is arranged on the sliding block, and the baffle plate is installed on the connecting plate.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention opens the cabinet door, and the first spring is in a compressed state in the initial state. The first spring cannot release its elasticity due to the limitation of the clamping assembly. The elasticity of the first spring is released by controlling the clamping assembly, so that the first spring quickly returns to its original shape, pushing the slider and the placement plate to slide forward along the slide groove, and the placement plate pops out together with the express package, so that the recipient can easily pick up the package. After the user gets the package, the placement plate is manually pushed back to the initial position. In the process of the placement plate returning to the initial position, the clamping assembly plays a role again, limiting the elastic release of the first spring, thereby preparing for the storage of the next express package, thereby improving the convenience of the user to pick up the package, and ensuring the reliability and durability of the express cabinet.

[0017] 2. The present invention allows the user to stand on the pallet and start the driving component, which drives the pallet to move along the outside of the cabinet until it moves to a suitable position, thereby facilitating the retrieval of items in the cabinet at a high place and improving the efficiency of retrieval.

[0018] 3. The present invention blocks rain and snow through a shielding plate, and the impact force of the falling rain and snow drives the shielding plate to move, and the shielding plate drives the connecting plate, and the connecting plate drives the sliding block to move in the column and squeeze the third spring in the column, thereby buffering the impact force of the falling rain and snow, thereby blocking the rain and snow and extending the service life of the cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the three-dimensional structure of an IoT-based smart express cabinet that is easy to pick up. Figure 1 .

[0020] Figure 2 A schematic diagram of the three-dimensional structure of an IoT-based smart express cabinet that is easy to pick up. Figure 2 .

[0021] Figure 3 It is a front view of a smart express cabinet of the Internet of Things that is easy to pick up.

[0022] Figure 4 It is a three-dimensional picture of a smart express cabinet of the Internet of Things with its door open, which is easy to take out.

[0023] Figure 5 It is a three-dimensional diagram of a cabinet body, a fixing plate and a placement plate in an IoT smart express cabinet that is easy to pick up.

[0024] Figure 6 The invention discloses a cross-sectional view of a fixing plate and a placement plate in a smart express cabinet of the Internet of Things that is easy to pick up, viewed from a side perspective.

[0025] Figure 7 It is a partial cross-sectional view of the base of a smart express cabinet of the Internet of Things that is easy to pick up.

[0026] Figure 8 The present invention is a cross-sectional view of a central column of an intelligent express delivery cabinet of the Internet of Things that is easy to pick up from a frontal perspective.

[0027] 1. The numbers in the figure are: 1. base; 2. cabinet body; 3. cabinet door; 4. pop-up assembly; 41. fixed plate; 42. placement plate; 43. slide groove; 44. slider; 45. first limit column; 46. second limit column; 47. first spring; 48. through groove; 49. rotating shaft; 410. clamping block; 411. clamping groove; 412. second spring; 413. push handle; 5. adjustment assembly; 51. support plate; 52. first motor; 53. first rotating rod; 54. first threaded rod; 55. first synchronous wheel; 56. second rotating rod; 57. second threaded rod; 58. second synchronous wheel; 59. synchronous belt; 510. slide rail; 511. moving block; 6. shielding assembly; 61. column; 62. sliding block; 63. third spring; 64. connecting plate; 65. shielding plate. DETAILED DESCRIPTION

[0028] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0029] See also Figures 1 to 8 As shown, the present invention provides an easy-to-take smart express cabinet of the Internet of Things, including a base 1, a cabinet body 2 is arranged on the top of the base 1, the cabinet body 2 is made of metal material, a plurality of groups of rectangular grooves are provided on the cabinet body 2, each group of rectangular grooves constitutes a storage space for storing items, a cabinet door 3 is provided at the open end of the rectangular groove, a pop-up component 4 is provided in the rectangular groove for easy placement or taking of items, the pop-up component 4 includes a placement plate 42 for placing items and an elastic release component for driving the placement plate 42 to pop up, an adjustment component 5 is also provided on the outer side of the cabinet body 2 for the user to adjust according to height requirements, a shielding component 6 is provided on the top of the cabinet body 2, the shielding component 6 includes a shielding plate 65 for shielding rain, snow and sunlight and a buffer component for reducing the impact force of falling rain and snow.

[0030] When the user needs to take out items from the cabinet 2, the user opens the cabinet door 3 and activates the pop-up component 4, which causes the placement plate 42 to pop forward a certain distance, allowing the user to easily take the express package. After the user takes the express, the placement plate 42 will automatically retract and the cabinet door 3 will close, waiting for the next use. When the user needs to take out items from the cabinet 2 at a high place, the user is driven to move by the adjustment component 5, thereby facilitating the taking of items from the cabinet 2 at a high place. The shielding component 6 is set to shield the cabinet 2 from direct effects of severe weather such as rain and snow, protecting the express package from moisture and damage.

[0031] See also Figures 1 to 6As shown, the elastic release component also includes a fixed plate 41, a slide groove 43, a slider 44 and a first spring 47; the fixed plate 41 is arranged in the rectangular groove, and a clamping component for releasing the elasticity of the first spring 47 is arranged on the fixed plate 41; the slide groove 43 is opened on the fixed plate 41; the slider 44 is arranged at the bottom of the placement plate 42, and the slider 44 is slidably arranged in the slide groove 43; the first spring 47 is arranged on one side of the slider 44, and the other end of the first spring 47 is connected to the inner wall of the slide groove 43.

[0032] When the user needs to take out items from the cabinet 2, by opening the cabinet door 3, the first spring 47 is in a compressed state in the initial state. Due to the limitation of the snap-on assembly, the first spring 47 cannot release its elasticity. By controlling the snap-on assembly to release the elasticity of the first spring 47, the first spring 47 quickly returns to its original shape, pushing the slider 44 and the placement plate 42 to slide forward along the slide groove 43, and the placement plate 42 pops out together with the express parcel, so that the recipient can easily pick up the parcel. After the user gets the parcel, he manually pushes the placement plate 42 back to the initial position. In the process of the placement plate 42 returning to the initial position, the snap-on assembly plays a role again, limiting the elastic release of the first spring 47, thereby preparing for the storage of the next express parcel, thereby improving the convenience of user picking up and ensuring the reliability and durability of the express cabinet.

[0033] See also Figure 6 As shown, a first limiting column 45 is provided on one side of the slider 44 , a second limiting column 46 is provided on the inner wall of the slide slot 43 , and a first spring 47 is sleeved on the first limiting column 45 and the second limiting column 46 .

[0034] When the first spring 47 pushes the slider 44 to move along the slide groove 43, since the first limiting column 45 and the second limiting column 46 are respectively located at the two ends of the first spring 47, they support and limit the first spring 47, so that the first spring 47 will not deviate during compression or stretching, thereby improving stability.

[0035] See also Figure 5 and Figure 6 As shown, the clamping assembly includes a through slot 48, a rotating shaft 49, a clamping block 410, a clamping slot 411, a second spring 412 and a push handle 413; the through slot 48 is provided on the fixed plate 41; the rotating shaft 49 is arranged in the through slot 48; the clamping block 410 is arranged on the rotating shaft 49, and a contact portion is provided at one end of the clamping block 410; the clamping slot 411 is provided at the bottom of the placement plate 42, and the contact portion can be plugged and matched with the clamping slot 411; the second spring 412 is arranged in the through slot 48, and one end of the second spring 412 is connected to the clamping block 410; the push handle 413 is arranged at the other end of the clamping block 410.

[0036] When it is necessary to release the elasticity of the first spring 47, the push handle 413 is pulled upwards, and the push handle 413 drives the clamping block 410 to rotate along the rotating shaft 49, and the clamping block 410 squeezes the second spring 412, so that the abutment portion set at one end of the clamping block 410 does not contact the clamping groove 411, so that the first spring 47 quickly returns to its original shape. When the user gets the package, he manually pushes the placement plate 42 back to the initial position. In the process of the placement plate 42 returning to the initial position, the second spring 412 restores its elastic deformation, driving the abutment portion set at one end of the clamping block 410 to enter the clamping groove 411, thereby preparing for the storage of the next express package, thereby improving the convenience of the user to take it.

[0037] See also Figure 4 and Figure 7 As shown, the adjustment assembly 5 includes a support plate 51 ; the support plate 51 is movably arranged on the outside of the cabinet 2 , and a driving component for driving the support plate 51 to move is arranged on the base 1 .

[0038] When the user needs to take out items from the cabinet 2 at a high place, the user stands on the pallet 51 and starts the driving component, which drives the pallet 51 to move along the outside of the cabinet 2 until it moves to a suitable position, thereby facilitating the taking of items from the cabinet 2 at a high place and improving the efficiency of taking.

[0039] See also Figure 7 As shown, the driving component includes a first motor 52, a first rotating rod 53, a first threaded rod 54, a second rotating rod 56 and a second threaded rod 57; the first motor 52 is arranged in the base 1; the first rotating rod 53 is arranged at the output end of the first motor 52; the first threaded rod 54 is arranged on one side of the cabinet 2, and the first rotating rod 53 is connected to the first threaded rod 54; the second rotating rod 56 is arranged in the base 1 on one side of the first rotating rod 53, and the first rotating rod 53 is provided with a synchronization component for driving the second rotating rod 56 to rotate synchronously; the second threaded rod 57 is arranged on the other side of the cabinet 2, the second threaded rod 57 is connected to the second rotating rod 56, and the support plate 51 is arranged on the first threaded rod 54 and the second threaded rod 57.

[0040] When the first motor 52 is started, the first motor 52 drives the first rotating rod 53 to start rotating, and transmits power to the second rotating rod 56 through the synchronization component on the first rotating rod 53, so that the second rotating rod 56 keeps rotating synchronously, and the rotation of the first rotating rod 53 drives the first threaded rod 54 to rotate, and the rotation of the second rotating rod 56 also drives the second threaded rod 57 to rotate, so that the support plate 51 moves along the first threaded rod 54 and the second threaded rod 57, thereby achieving the effect of driving the support plate 51 to move.

[0041] See also Figure 7As shown, the synchronous components include a first synchronous wheel 55, a second synchronous wheel 58 and a synchronous belt 59; the first synchronous wheel 55 is arranged on the first rotating rod 53; the second synchronous wheel 58 is arranged on the second rotating rod 56; and the synchronous belt 59 is sleeved on the first synchronous wheel 55 and the second synchronous wheel 58.

[0042] When the first rotating rod 53 rotates, the first synchronous wheel 55 starts to rotate driven by the first rotating rod 53, and the second synchronous wheel 58 is driven to rotate through the synchronous belt 59, and the rotation of the second synchronous wheel 58 drives the second rotating rod 56 to rotate together, thereby achieving a synchronous rotation effect.

[0043] See also Figure 4 As shown, slide rails 510 are provided on both sides of the cabinet 2, and moving blocks 511 are slidably provided on the slide rails 510, and the moving blocks 511 are connected to the support plate 51.

[0044] When the driving component drives the support plate 51 to move, the moving blocks 511 arranged on the support plate 51 move on the slide rails 510 arranged on both sides of the cabinet 2, so that the support plate 51 is more stable when moving.

[0045] See also Figure 4 As shown, the top of the support plate 51 is attached with an anti-skid layer, which is made of rubber material.

[0046] By attaching an anti-skid layer to the top of the support plate 51, and the anti-skid layer is made of rubber material, the rubber material has friction, which can ensure that the user is more stable and less likely to shake on the support plate 51, thereby improving safety.

[0047] See also Figure 8 As shown, the buffer component 6 includes a column 61, a sliding block 62, a third spring 63, a connecting plate 64 and a baffle 65; the column 61 is provided with two groups and is symmetrically arranged on the top of the cabinet 2; the sliding block 62 is slidably arranged in the column 61; the third spring 63 is arranged in the column 61, and one end of the third spring 63 abuts against the sliding block 62; the connecting plate 64 is arranged on the sliding block 62, and the baffle 65 is installed on the connecting plate 64.

[0048] When it is rainy or snowy, the shielding plate 65 blocks the rain and snow, and the impact force of the falling rain and snow drives the shielding plate 65 to move, and the shielding plate 65 drives the connecting plate 64, and the connecting plate 64 drives the sliding block 62 to move in the column 61 and squeeze the third spring 63 in the column 61, thereby buffering the impact force of the falling rain and snow, thereby blocking the rain and snow and extending the service life of the cabinet 2.

[0049] The above embodiments only express one or several implementation modes of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for those of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. An IoT-based smart express cabinet that is easy to pick up, characterized in that: The cabinet (2) comprises a base (1), the top of which is provided with a cabinet body (2), the cabinet body (2) being made of a metal material, the cabinet body (2) being provided with a plurality of groups of rectangular grooves, each group of rectangular grooves constituting a storage space for storing articles, the open ends of the rectangular grooves being provided with cabinet doors (3), the rectangular grooves being provided with a pop-up assembly (4) for facilitating the placement or taking of articles, the pop-up assembly (4) comprising a placement plate (42) for placing articles and an elastic release assembly for driving the placement plate (42) to pop out, the outer side of the cabinet body (2) being provided with an adjustment assembly (5) for facilitating adjustment according to height requirements by a user, the top of the cabinet body (2) being provided with a shielding assembly (6), the shielding assembly (6) comprising a shielding plate (65) for shielding rain, snow and sunlight and a buffer component for reducing the impact of falling rain and snow.

2. The easy-to-take smart express cabinet of the Internet of Things according to claim 1, characterized in that: The elastic release assembly further comprises a fixing plate (41), a sliding groove (43), a sliding block (44) and a first spring (47); The fixing plate (41) is arranged in the rectangular groove, and a clamping assembly for releasing the elasticity of the first spring (47) is arranged on the fixing plate (41); The slide groove (43) is formed on the fixed plate (41); The slider (44) is arranged at the bottom of the placement plate (42), and the slider (44) is slidably arranged in the slide groove (43); The first spring (47) is arranged on one side of the sliding block (44), and the other end of the first spring (47) is connected to the inner wall of the sliding groove (43).

3. The easy-to-take smart express cabinet of the Internet of Things according to claim 2, characterized in that: A first limiting column (45) is provided on one side of the sliding block (44), a second limiting column (46) is provided on the inner wall of the sliding groove (43), and the first spring (47) is sleeved on the first limiting column (45) and the second limiting column (46).

4. The easy-to-take smart express cabinet of the Internet of Things according to claim 2, characterized in that: The clamping assembly comprises a through slot (48), a rotating shaft (49), a clamping block (410), a clamping slot (411), a second spring (412) and a push handle (413); The through slot (48) is formed on the fixing plate (41); The rotating shaft (49) is arranged in the through slot (48); The clamping block (410) is arranged on the rotating shaft (49), and an abutment portion is arranged at one end of the clamping block (410); The clamping groove (411) is provided at the bottom of the placement plate (42), and the abutment portion can be plugged into and matched with the clamping groove (411); The second spring (412) is disposed in the through slot (48), and one end of the second spring (412) is connected to the clamping block (410); The push handle (413) is arranged at the other end of the clamping block (410).

5. The easy-to-take smart express cabinet of the Internet of Things according to claim 1, characterized in that: The adjustment assembly (5) comprises a support plate (51); The support plate (51) is movably arranged on the outside of the cabinet (2), and a driving component for driving the support plate (51) to move is arranged on the base (1).

6. The easy-to-take smart express cabinet of the Internet of Things according to claim 5, characterized in that: The driving component comprises a first motor (52), a first rotating rod (53), a first threaded rod (54), a second rotating rod (56) and a second threaded rod (57); The first motor (52) is arranged in the base (1); The first rotating rod (53) is arranged at the output end of the first motor (52); The first threaded rod (54) is arranged on one side of the cabinet (2), and the first rotating rod (53) is connected to the first threaded rod (54); The second rotating rod (56) is arranged inside the base (1) on one side of the first rotating rod (53), and the first rotating rod (53) is provided with a synchronization component for driving the second rotating rod (56) to rotate synchronously; The second threaded rod (57) is arranged on the other side of the cabinet (2), the second threaded rod (57) is connected to the second rotating rod (56), and the support plate (51) is arranged on the first threaded rod (54) and the second threaded rod (57).

7. The easy-to-take smart express cabinet of the Internet of Things according to claim 6, characterized in that: The synchronous component comprises a first synchronous wheel (55), a second synchronous wheel (58) and a synchronous belt (59); The first synchronous wheel (55) is arranged on the first rotating rod (53); The second synchronous wheel (58) is arranged on the second rotating rod (56); The synchronous belt (59) is sleeved on the first synchronous wheel (55) and the second synchronous wheel (58).

8. The easy-to-take smart express cabinet of the Internet of Things according to claim 1, characterized in that: Slide rails (510) are arranged on both sides of the cabinet (2), and moving blocks (511) are slidably arranged on the slide rails (510), and the moving blocks (511) are connected to the support plate (51).

9. The easy-to-take smart express cabinet of the Internet of Things according to claim 5, characterized in that: The top of the support plate (51) is attached with an anti-slip layer, and the anti-slip layer is made of rubber material.

10. The easy-to-take smart express cabinet of the Internet of Things according to claim 1, characterized in that: The buffer component comprises a column (61), a sliding block (62), a third spring (63), a connecting plate (64) and a shielding plate (65); The upright columns (61) are provided in two groups and are symmetrically arranged on the top of the cabinet (2); The sliding block (62) is slidably disposed in the column (61); The third spring (63) is arranged in the column (61), and one end of the third spring (63) is in contact with the sliding block (62); The connecting plate (64) is arranged on the sliding block (62), and the shielding plate (65) is installed on the connecting plate (64).

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