Glassware cabinet with drying effect for storing glassware

CN224694867UActive Publication Date: 2026-08-28BANGDACHENG ENVIRONMENTAL MONITORING CENT (JIANGSU) CO LTD
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Patent Information

Application Number
CN202521369314.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-07-01
Publication Date
2026-08-28
Estimated Expiration
2035-07-01

AI Technical Summary

Technical Problem

[0003]传统玻璃器皿柜内部多采用固定层架,无法适配不同规格的玻璃器皿,当存放大型或异形器皿时,需拆除层架,操作繁琐且易损坏柜体结构,且多采用单一热风循环系统,通过顶部或侧面的出风口向柜内输送热风,易导致热风分布不均,烘干效率显著降低,使部分区域残留水渍的情况

Benefits of technology

启动驱动电机,带动齿轮三旋转,带动两个连接机构进行相对运动,使齿轮三带动相啮合的齿轮二旋转,齿轮二带动相啮合的齿轮一旋转,通过连接杆一和连接杆二带动齿轮一一侧转轴固定连接的滑动板在滑槽二内移动,使两个滑动板固定连接的两个连接架之间进行高度调节,方便对不同高度或异形器皿进行放置。

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a glassware storage is with the glassware cabinet that has drying effect, including box, fan subassembly, connecting frame, connecting shell and two heaters, box inner wall is fixedly connected with fan subassembly one side, connecting shell one side is fixedly connected with the one side of box, the both ends of connecting frame are fixedly connected with the both sides of box inner wall respectively, two heaters one side all are fixedly connected with box inner wall, start drive motor, drive gear three rotation, make two connecting mechanisms relative motion, gear three drive gear two rotation, gear two drive the rotation of meshing gear one, move in the sliding slot two through connecting rod one and connecting rod two drive gear one one side rotation shaft fixed connection's sliding board, make two connecting frames fixed connection's two sliding boards carry out height adjustment, convenient to different height or special-shaped utensil place, heater is heated to the inside of box, fan subassembly carries out even blowing to hot gas, makes the hot gas even in the inside of box, glassware fast drying.
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Description

Technical Field

[0001] This utility model relates to the field of glassware cabinet technology, and in particular to a glassware cabinet with a drying effect for storing glassware. Background Technology

[0002] A glassware cabinet is a type of cabinet specifically designed for storing laboratory glassware. It is resistant to strong acids, alkalis, and corrosion, making it particularly suitable for storing and preventing leakage of highly corrosive chemicals. The cleaning, drying, and safe storage of glassware are of paramount importance.

[0003] Traditional glassware cabinets often use fixed shelves inside, which cannot accommodate glassware of different sizes. When storing large or irregularly shaped glassware, the shelves need to be removed, which is cumbersome and can easily damage the cabinet structure. In addition, they often use a single hot air circulation system, which delivers hot air into the cabinet through air outlets on the top or side, which can easily lead to uneven distribution of hot air, significantly reducing drying efficiency and leaving water stains in some areas.

[0004] Therefore, it is necessary to provide a new glassware storage cabinet with a drying effect to solve the above-mentioned technical problems. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a glassware cabinet with a drying effect for storing glassware.

[0006] The present invention provides a glassware storage cabinet with drying effect, comprising: a cabinet body, a fan assembly, a connecting frame, a connecting shell, and two heaters. The inner wall of the cabinet body is fixedly connected to one side of the fan assembly, one side of the connecting shell is fixedly connected to one side of the cabinet body, both ends of the connecting frame are fixedly connected to both sides of the inner wall of the cabinet body, and one side of the two heaters is fixedly connected to the inner wall of the cabinet body. The connecting frame contains a fixed plate, a first connecting plate, a second connecting plate, two lifting components, and four placement racks. Both sides of the fixed plate are fixedly connected to the inner walls of the box. The tops of the first connecting plate and the second connecting plate are fixedly connected to the bottom of the fixed plate. The four placement racks are positioned between the first connecting plate and the second connecting plate. The first connecting plate has two openings on its surface. The two lifting components are fixedly connected to the inner walls of the two openings. The second connecting plate has two grooves on one side. One end of the four placement racks is slidably connected to the inner walls of the two grooves. The end of the four placement racks away from the box is fixedly connected to one side of the two lifting components.

[0007] Preferably, the lifting assembly includes an upper box, a drive motor, a lower box, two connecting mechanisms, and two sliding plates. One side of the upper box is fixedly connected to the inner wall of an opening on the surface of a connecting plate. Both sides of the inner wall of the upper box are provided with sliding grooves. The two ends of the two sliding plates are slidably connected to the two sliding grooves. One side of the inner wall of the upper box is provided with two second sliding grooves. The bottoms of the two sliding plates are slidably connected to the inside of the two second sliding grooves. The bottoms of the two sliding plates are fixedly connected to one side of the connecting mechanism. One side of the upper box is fixedly connected to one side of the lower box. One end of the drive motor is fixedly connected to one side of the lower box. The output end of the drive motor is fixedly connected to one end of a rotating shaft. The end of the rotating shaft away from the drive motor is rotatably connected to one side of the upper box. The outer surface of the rotating shaft is fixedly connected to one side of the connecting mechanism.

[0008] Preferably, the fan assembly includes a housing, a drive mechanism, a rotating rod, a third bevel gear, a fourth bevel gear, a rotating shaft, a fan, and a rotating mechanism. One side of the housing is fixedly connected to the inner wall of the housing. The drive mechanism is located inside the housing. One side of the drive mechanism is fixedly connected to one end of the rotating rod. The end of the rotating rod away from the drive mechanism is fixedly connected to the third bevel gear. The third bevel gear and the fourth bevel gear mesh. One side of the fourth bevel gear is fixedly connected to one end of the rotating shaft. The end of the rotating shaft away from the fourth bevel gear is fixedly connected to the fan side. The outer surface of the rotating shaft is rotatably connected to the inner wall of a through hole opened on one side of the protective housing.

[0009] Preferably, the connecting mechanism includes gear one, gear two, gear three, connecting rod one, and connecting rod two. The outer surface of the rotating shaft is fixedly connected to the inner wall of the through hole opened on the surface of gear three. One side of gear one is rotatably connected to the rotating shaft on one side of the sliding plate. Gear one meshes with gear two, and gear two meshes with gear three. One end of the connecting rod is rotatably connected to the outer surface of the rotating shaft on one side of gear one. The end of the connecting rod one away from gear one is rotatably connected to the outer surface of the rotating shaft on one side of gear two. One end of the connecting rod two is rotatably connected to the outer surface of the rotating shaft on one side of gear two. The end of the connecting rod two away from gear two is rotatably connected to the outer surface of the rotating shaft on one side of gear three.

[0010] Preferably, the drive mechanism includes a rotary motor, a rotary shaft, a first bevel gear, and a second bevel gear. The rotary motor is disposed inside the housing, one side of the rotary motor is fixedly connected to the outer surface of the housing, the output end of the rotary motor is fixedly connected to one end of the rotary shaft, the end of the rotary shaft away from the rotary motor is fixedly connected to one side of the first bevel gear, the first bevel gear meshes with the second bevel gear, and one side of the second bevel gear is fixedly connected to one end of the rotating rod.

[0011] Preferably, the rotating mechanism includes a servo motor, a rotating drum, a worm gear, a worm wheel, a protective shell, and two support plates. The servo motor is located inside the shell, with one end fixedly connected to the outer surface of the housing. The output end of the servo motor is fixedly connected to one end of the worm gear. The bottoms of the two support plates are fixedly connected to the bottom wall of the shell. The worm gear is rotatably connected to the through holes opened on the two supports. The worm gear meshes with the worm wheel. One side of the worm wheel is fixedly connected to one end of the rotating drum. The end of the rotating drum away from the worm wheel is fixedly connected to the through hole opened on the top of the protective shell. The outer surface of the rotating drum is rotatably connected to the through hole opened on the bottom of the shell.

[0012] Compared with related technologies, the glassware storage cabinet with drying effect provided by this utility model has the following beneficial effects: Start the drive motor to rotate gear three, which in turn causes the two connecting mechanisms to move relative to each other. Gear three then drives gear two to rotate, and gear two in turn drives gear one to rotate. Through connecting rod one and connecting rod two, the sliding plate fixedly connected to the shaft on one side of gear one moves within the sliding groove two, allowing the height between the two connecting frames fixedly connected to the two sliding plates to be adjusted, facilitating the placement of containers of different heights or irregular shapes.

[0013] 2. The heater heats the inside of the chamber, and the fan assembly blows the hot air evenly, so that the hot air inside the chamber is even and the glassware dries quickly. Attached Figure Description

[0014] Figure 1 A schematic diagram of a preferred embodiment of a glassware storage cabinet with drying effect provided by this utility model; Figure 2 A cross-sectional view of the box body provided for this utility model; Figure 3 Side view of the housing provided by this utility model; Figure 4 Side view of the fixing frame provided by this utility model; Figure 5 Side view of the fixing frame provided by this utility model; Figure 6 Side view of the lifting assembly provided by this utility model; Figure 7 A cross-sectional view of the drive mechanism provided by this utility model; Figure 8 Side view of the drive mechanism provided by this utility model; Figure 9 A cross-sectional view of the fan assembly provided by this utility model; Figure 10 A side view of the fan assembly provided by this utility model.

[0015] Numbered in the diagram: 1. Housing; 101. Heater; 2. Fixing plate; 201. Connecting plate one; 202. Connecting plate two; 203. Connecting frame; 204. Opening; 205. Groove; 3. Upper box; 301. Drive motor; 302. Sliding plate; 303. Slide groove; 304. Slide groove two; 305. Gear one; 306. Gear two; 307. Gear three; 308. Rotating shaft; 310. Connecting rod one; 31 1. Connecting rod 2; 315. Lower box; 4. Housing; 401. Rotary motor; 402. Servo motor; 403. Rotating column; 404. Bevel gear 1; 405. Bevel gear 2; 406. Rotating rod; 407. Bevel gear 3; 408. Bevel gear 4; 409. Rotating shaft; 410. Fan; 411. Rotating cylinder; 412. Worm gear; 413. Support plate; 414. Worm wheel; 415. Protective shell; 5. Connecting shell. Detailed Implementation

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Please refer to the following: Figure 1-10 ,in, Figure 1 A schematic diagram of a preferred embodiment of a glassware storage cabinet with drying effect provided by this utility model; Figure 2 A cross-sectional view of the box body provided for this utility model; Figure 3 Side view of the housing provided by this utility model; Figure 4 Side view of the fixing frame provided by this utility model; Figure 5 Side view of the fixing frame provided by this utility model; Figure 6 Side view of the lifting assembly provided by this utility model; Figure 7 A cross-sectional view of the drive mechanism provided by this utility model; Figure 8 Side view of the drive mechanism provided by this utility model; Figure 9 A cross-sectional view of the fan assembly provided by this utility model; Figure 10 A side view of the fan assembly provided by this utility model.

[0018] In the specific implementation process, such as Figure 1-10 As shown, it includes: a housing 1, a fan assembly, a connecting frame, a connecting shell 5, and two heaters 101. The inner wall of the housing 1 is fixedly connected to one side of the fan assembly, one side of the connecting shell 5 is fixedly connected to one side of the housing 1, both ends of the connecting frame are fixedly connected to both sides of the inner wall of the housing 1, and one side of each of the two heaters 101 is fixedly connected to the inner wall of the housing 1. The connecting frame is equipped with a fixed plate 2, a connecting plate 1 201, a connecting plate 202, two lifting components, and four placement racks 203. The two sides of the fixed plate 2 are fixedly connected to the two sides of the inner wall of the box 1. The tops of the connecting plate 1 201 and the connecting plate 202 are fixedly connected to the bottom of the fixed plate 2. The surface of the connecting plate 1 201 is provided with two openings 204. The two lifting components are fixedly connected to the inner walls of the two openings 204. The side of the connecting plate 202 is provided with two grooves 205. One end of the four placement racks 203 is slidably connected to the inner wall of the two grooves 205. The end of the four placement racks 203 away from the box 1 is fixedly connected to one side of the two lifting components. The two lifting components drive the four placement racks 203 to move up and down in the two grooves 205. The lifting assembly includes an upper box 3, a drive motor 301, a gear 307, a rotating shaft 308, a lower box 315, two connecting mechanisms, and two sliding plates 302. One side of the upper box 3 is fixedly connected to the inner wall of an opening 204 on the surface of the connecting plate 3. Slide grooves 303 are provided on both sides of the inner wall of the upper box 3. The two sliding plates 302 are slidably connected at both ends to the two slide grooves 303. Two second slide grooves 304 are provided on one side of the inner wall of the upper box 3. The two sliding plates 302 are slidably connected at one side to the two slide grooves 304. One side of each sliding plate 302 is fixedly connected to one side of each of the two connecting mechanisms. Next, one side of the upper box 3 is fixedly connected to one side of the lower box 315, one end of the drive motor 301 is fixedly connected to one side of the lower box 315, the output end of the drive motor 301 is fixedly connected to one end of the rotating shaft 308, the end of the rotating shaft 308 away from the drive motor 301 is rotatably connected to one side of the upper box 3, the outer surface of the rotating shaft 308 is rotatably connected to the inner wall of the through hole opened on the surface of the gear 307, and both ends of the gear 307 are rotatably connected to two connecting mechanisms respectively. When the drive motor 301 is started, the gear 307 and the rotating shaft 308 are driven to rotate, and the two connecting mechanisms are driven to move relative to each other through the gear 307. The fan assembly includes a housing 4, a drive mechanism, a rotating rod 406, a third bevel gear 407, a fourth bevel gear 408, a rotating shaft 409, a fan 410, and a rotating mechanism. One side of the housing 4 is fixedly connected to the inner wall of the casing 1. The drive mechanism is located inside the housing 4. One side of the drive mechanism is fixedly connected to one end of the rotating rod 406. The end of the rotating rod 406 away from the drive mechanism is fixedly connected to the third bevel gear 407. The third bevel gear 407 meshes with the fourth bevel gear 408. One side of the fourth bevel gear 408 is fixedly connected to one end of the rotating shaft 409. The rotating shaft 410... One end of the shaft 409 away from the bevel gear 408 is fixedly connected to the side of the fan 410. The outer surface of the shaft 409 is rotatably connected to the inner wall of the through hole opened on one side of the protective shell 415. Through the drive mechanism, the rotating rod 406 and the bevel gear 407 fixedly connected to one end of the rotating rod 406 are driven to rotate. The bevel gear 407 meshes with the bevel gear 408. The bevel gear 407 drives the bevel gear 408 and the shaft 409 fixedly connected to the bevel gear 408 to rotate, so that the fan 410 fixedly connected to one end of the shaft 409 blows hot air. The connecting mechanism includes gear 1 305, gear 2 306, connecting rod 1 310, and connecting rod 2 311. One side of gear 1 305 is rotatably connected to one side of sliding plate 302 via a rotating shaft. Gear 1 305 meshes with gear 2 306, and gear 2 306 meshes with gear 3 307. One end of connecting rod 1 310 is rotatably connected to one side of gear 1 305 via a rotating shaft, and the end of connecting rod 1 310 away from gear 1 305 is rotatably connected to one side of gear 2 306 via a rotating shaft. One end of connecting rod 2 311 is rotatably connected to one side of gear 2 306 via a rotating shaft, and the end of connecting rod 2 311 away from gear 2 306 is rotatably connected to one side of gear 3 307 via a rotating shaft. Gear 2 306 drives the meshing gear 1 305 to rotate. Connecting rod 1 310 and connecting rod 2 311 drive the sliding plate 302, which is fixedly connected to one side of gear 1 305 via a rotating shaft, to move within the sliding groove 2 304. The drive mechanism includes a rotary motor 401, a rotating column 403, a first bevel gear 404, and a second bevel gear 405. The rotary motor 401 is located inside the connecting housing 5. One side of the rotary motor 401 is fixedly connected to the outer surface of the housing 1. The output end of the rotary motor 401 is fixedly connected to one end of the rotating column 403. The end of the rotating column 403 away from the rotary motor 401 is fixedly connected to the side of the first bevel gear 404. The first bevel gear 404 meshes with the second bevel gear 405. One side of the second bevel gear 405 is fixedly connected to one end of the rotating rod 406. When the rotary motor 401 is started, the rotating column 403 and the first bevel gear 404 rotate, which simultaneously drives the second bevel gear 405, which meshes with the first bevel gear 404, to rotate. The rotating mechanism includes a servo motor 402, a rotating drum 411, a worm gear 412, a worm wheel 414, a protective shell 415, and two support plates 413. The servo motor 402 is located inside the connecting shell 5, with one end fixedly connected to the outer surface of the housing 1. The output end of the servo motor 402 is fixedly connected to one end of the worm gear 412. The bottoms of the two support plates 413 are fixedly connected to the bottom wall of the housing 4. The worm gear 412 is rotatably connected to the through holes opened on the two support plates 413. The worm gear 412 meshes with the worm wheel 414, and one side of the worm wheel 414 is connected to... One end of the rotating cylinder 411 is fixedly connected, and the end of the rotating cylinder 411 away from the worm gear 414 is fixedly connected to the inside of the through hole opened at the top of the protective shell 415. The outer surface of the rotating cylinder 411 is rotatably connected to the through hole opened at the bottom of the shell 4. When the servo motor 402 is started, the worm gear 414 and the worm 412 are driven to rotate, which simultaneously drives the rotating cylinder 411 fixedly connected to one side of the worm gear 414 to rotate in the through hole opened at the bottom of the shell 4, causing the protective shell 415 to rotate together, so that the fan 410 blows the hot air inside the box 1 evenly, so that the glassware dries quickly.

[0019] The working principle provided by this utility model is as follows: Start the drive motor 301, which drives gear three 307 and rotating shaft 308 to rotate. Gear three 307 drives gear two 306 to rotate, and gear two 306 drives gear one 305 to rotate. Through connecting rod one 310 and connecting rod two 311, the sliding plate fixedly connected to the rotating shaft on one side of gear one 305 moves in the sliding groove two 304, allowing the height between the two connecting brackets 203 fixedly connected to the two sliding plates 302 to be adjusted, facilitating the placement of containers of different heights or irregular shapes. The heater heats the inside of the box 1. Start the rotary motor 401, which drives the rotating column 403 and bevel gear one 404 to rotate, synchronously driving bevel gear two 405 meshing with bevel gear one 404. The rotation is achieved by bevel gear 2 405 driving the rotating rod 406 and bevel gear 3 407 fixedly connected to one end of the rotating rod 406 to rotate. Bevel gear 3 407 meshes with bevel gear 408. Bevel gear 3 407 drives bevel gear 408 and the rotating shaft 409 fixedly connected to bevel gear 408 to rotate, causing the fan 410 fixedly connected to one end of the rotating shaft 409 to blow hot air. The servo motor 402 is started, driving the worm gear 414 and worm 412 to rotate. Simultaneously, the rotating cylinder 411 fixedly connected to one side of the worm gear 414 rotates through the through hole opened at the bottom of the housing 4, causing the protective shell 415 to rotate together. This allows the fan 410 to blow hot air evenly inside the housing 1, making the glassware dry quickly.

[0020] The circuits and controls involved in this utility model are all existing technologies, and will not be described in detail here.

[0021] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A glassware cabinet with a drying effect for storing glassware, characterized in that, It includes a housing (1), a fan assembly, a connecting frame, a connecting shell (5), and two heaters (101). The inner wall of the housing (1) is fixedly connected to one side of the fan assembly, one side of the connecting shell (5) is fixedly connected to one side of the housing (1), both ends of the connecting frame are fixedly connected to the two sides of the inner wall of the housing (1), and one side of each of the two heaters (101) is fixedly connected to the inner wall of the housing (1). The connecting frame is provided with a fixed plate (2), a connecting plate one (201), a connecting plate two (202), two lifting components and four placement racks (203). The two sides of the fixed plate (2) are fixedly connected to the two sides of the inner wall of the box (1). The top of the connecting plate one (201) and the connecting plate two (202) are fixedly connected to the bottom of the fixed plate (2). The surface of the connecting plate one (201) is provided with two openings (204). The two lifting components are fixedly connected to the inner wall of the two openings (204). The side of the connecting plate two (202) is provided with two grooves (205). One end of the four placement racks (203) is slidably connected to the inner wall of the two grooves (205). The end of the four placement racks (203) away from the box (1) is fixedly connected to one side of the two lifting components.

2. A glassware cabinet with a drying effect for storing glassware according to claim 1, characterized in that, The lifting assembly includes an upper box (3), a drive motor (301), a gear three (307), a rotating shaft (308), a lower box (315), two connecting mechanisms, and two sliding plates (302). One side of the upper box (3) is fixedly connected to the inner wall of the opening (204) on the surface of the connecting plate one (201). The inner walls of the upper box (3) are respectively provided with sliding grooves (303) on both sides. The two sliding plates (302) are slidably connected to the two sliding grooves (303) at both ends. The inner walls of the upper box (3) are provided with two sliding grooves two (304) on one side. The two sliding plates (302) are slidably connected to the two sliding grooves two (304) at one side. Inside 304), one side of the two sliding plates (302) is fixedly connected to one side of the two connecting mechanisms respectively, one side of the upper box (3) is fixedly connected to one side of the lower box (315), one end of the drive motor (301) is fixedly connected to one side of the lower box (315), the output end of the drive motor (301) is fixedly connected to one end of the rotating shaft (308), the end of the rotating shaft (308) away from the drive motor (301) is rotatably connected to one side of the upper box (3), the outer surface of the rotating shaft (308) is rotatably connected to the inner wall of the through hole opened on the surface of the gear three (307), and both ends of the gear three (307) are rotatably connected to the two connecting mechanisms respectively.

3. A glassware cabinet with a drying effect for storing glassware according to claim 1, characterized in that, The fan assembly includes a housing (4), a drive mechanism, a rotating rod (406), a bevel gear three (407), a bevel gear four (408), a rotating shaft (409), a fan (410), and a rotating mechanism. One side of the housing (4) is fixedly connected to the inner wall of the box (1). The drive mechanism is located inside the housing (4). One side of the drive mechanism is fixedly connected to one end of the rotating rod (406). The end of the rotating rod (406) away from the drive mechanism is fixedly connected to the bevel gear three (407). The bevel gear three (407) meshes with the bevel gear four (408). One side of the bevel gear four (408) is fixedly connected to one end of the rotating shaft (409). The end of the rotating shaft (409) away from the bevel gear four (408) is fixedly connected to one side of the fan (410). The outer surface of the rotating shaft (409) is rotatably connected to the inner wall of the through hole opened on one side of the protective shell (415).

4. A glassware storage cabinet with a drying effect according to claim 2, characterized in that, The connecting mechanism includes gear one (305), gear two (306), connecting rod one (310), and connecting rod two (311). One side of gear one (305) is rotatably connected to one side of sliding plate (302) via a rotating shaft. Gear one (305) meshes with gear two (306), and gear two (306) meshes with gear three (307). One end of connecting rod one (310) is rotatably connected to one side of gear one (305) via a rotating shaft. The end of connecting rod one (310) away from gear one (305) is rotatably connected to one side of gear two (306) via a rotating shaft. One end of connecting rod two (311) is rotatably connected to one side of gear two (306) via a rotating shaft. The end of connecting rod two (311) away from gear two (306) is rotatably connected to one side of gear three (307) via a rotating shaft.

5. A glassware cabinet with a drying effect for storing glassware according to claim 3, characterized in that, The driving mechanism includes a rotary motor (401), a rotating column (403), a first bevel gear (404), and a second bevel gear (405). The rotary motor (401) is located inside the connecting shell (5). One side of the rotary motor (401) is fixedly connected to the outer surface of the housing (1). The output end of the rotary motor (401) is fixedly connected to one end of the rotating column (403). The end of the rotating column (403) away from the rotary motor (401) is fixedly connected to one side of the first bevel gear (404). The first bevel gear (404) meshes with the second bevel gear (405). One side of the second bevel gear (405) is fixedly connected to one end of the rotating rod (406).

6. A glassware cabinet with a drying effect for storing glassware according to claim 3, characterized in that, The rotating mechanism includes a servo motor (402), a rotating drum (411), a worm (412), a worm wheel (414), a protective shell (415), and two support plates (413). The servo motor (402) is located inside the connecting shell (5). One end of the servo motor (402) is fixedly connected to the outer surface of the housing (1). The output end of the servo motor (402) is fixedly connected to one end of the worm (412). The bottom of the two support plates (413) is fixedly connected to the bottom wall of the housing (4). The worm (412) is rotatably connected to the through holes opened on the two support plates (413). The worm (412) meshes with the worm wheel (414). One side of the worm wheel (414) is fixedly connected to one end of the rotating drum (411). The end of the rotating drum (411) away from the worm wheel (414) is fixedly connected to the through hole opened on the top of the protective shell (415). The outer surface of the rotating drum (411) is rotatably connected to the through hole opened on the bottom of the housing (4).