Liftable rack

Abstract

The utility model provides a liftable rack, and relates to the technical field of racks. The liftable rack comprises a box body, the top of the box body is fixedly connected with a supporting plate, the interior of the box body is fixedly connected with a base, the interior of the base is rotatably connected with a sleeve, the interior of the sleeve is slidably connected with a threaded rod, the top of the box body is provided with an upper supporting table, and the top end of the threaded rod is rotatably connected with a rotating sleeve; the rotating sleeve is fixedly connected with the bottom of an upper supporting table, a lower supporting table is arranged at the bottom of the upper supporting table, a limiting sleeve is fixedly connected into the lower supporting table, and the threaded rod penetrates through the limiting sleeve and is in sliding connection with the limiting sleeve. According to the liftable rack, the height of the upper supporting table is adjusted, use is convenient, the supporting height can be conveniently and rapidly adjusted, and the liftable rack is conveniently suitable for different articles.

Description

Technical Field

[0001] The utility model relates to a shelf, in particular to a liftable shelf, belonging to the technical field of shelves. Background Art

[0002] In the market, a shelf is a common shelf for placing and organizing items in life. The existing shelf is generally composed of a support rod and a storage board, and a plurality of storage boards are generally provided, and the plurality of storage boards are fixed on the support rod, and people can place items on the storage boards.

[0003] In an existing storage rack, the storage plates are fixed on the support rods. Since the spacing between the storage plates cannot be adjusted, it is difficult to place items on the storage plates when the height exceeds the spacing between the storage plates. For a multi-layer storage rack, it is not convenient to place and store items. The fixed height requires a large space, which is even more difficult to move when it is needed. The entire storage rack may even need to be disassembled for transportation and transfer. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] The purpose of the utility model is to provide a liftable shelf in order to solve the above problems, so as to solve the problem in the prior art that it is difficult to place items on the storage board for multi-layer shelves, which is inconvenient to place and store. The fixed height requires a large space and is even more difficult to move when it is needed, and the entire shelf may even need to be disassembled for transportation and transfer.

[0006] (II) Technical solution

[0007] The utility model is implemented through the following technical scheme: a liftable shelf comprises a box body, the top of the box body is fixedly connected with a support plate, the inside of the box body is fixedly connected with a base, the inside of the base is rotatably connected with a sleeve, the inside of the sleeve is slidably connected with a threaded rod, an upper support platform is arranged on the top of the box body, the top of the threaded rod is rotatably connected with a rotating sleeve, the rotating sleeve is fixedly connected to the bottom of the upper support platform, a lower support platform is arranged at the bottom of the upper support platform, a limiting sleeve is fixedly connected to the inside of the lower support platform, and the threaded rod passes through the limiting sleeve and is slidably connected to the limiting sleeve.

[0008] Preferably, limiting grooves are provided on both sides of the sleeve, limiting plates are fixedly connected on both sides of the bottom end of the threaded rod, the two limiting plates are slidably connected to the inside of the two limiting grooves respectively, a threaded sleeve is fixedly connected to the inside of the support plate, the threaded rod passes through the threaded sleeve and is threadedly connected to the threaded sleeve, so that the threaded rod moves up and down when it rotates inside the threaded sleeve.

[0009] Preferably, the four corners of the top of the box are fixedly connected with fixed columns, the upper support platform and the lower support platform are slidably connected to the four fixed columns respectively, the bottom of both sides of the upper support platform are fixedly connected with vertical rods, the two vertical rods pass through the top of the box and are slidably connected to the box, the inner sides of the two vertical rods are fixedly connected with limiting blocks, the two limiting blocks are respectively fitted with the two sides of the bottom of the lower support platform, to support and limit the upper support platform, thereby improving the stability of the upper support platform.

[0010] Preferably, guide rods are fixedly connected to both sides of the bottom of the lower support platform, and the two guide rods pass through both sides of the support plate and are slidably connected to the support plate to guide the lower support platform.

[0011] Preferably, the bottom ends of the two guide rods are fixedly connected to a bottom plate, and springs are sleeved on the outsides of the two guide rods. The two springs are respectively fixedly connected to the bottom plate and the support plate to limit and support the bottom plate and the guide rods.

[0012] Preferably, a motor is fixedly connected to the bottom end of the box, a gear is fixedly connected to the output end of the motor, a gear ring is fixedly connected to the outer side of the bottom end of the sleeve, and the gear is meshingly connected with the gear ring, so that starting the motor drives the gear to rotate, the gear rotation drives the gear ring to rotate, and then drives the sleeve to rotate.

[0013] Preferably, an empty slot is opened on the top of the support plate, the lower support platform and the upper support platform are both adapted to the empty slot, the tops of the four fixing columns are fixedly connected with a top plate, and a protective door is arranged on the front side of the box body.

[0014] The utility model provides a liftable shelf, which has the following beneficial effects:

[0015] 1. The liftable shelf has an upper support platform and a lower support platform placed inside an empty slot of the support plate in an initial position, which is convenient for placing items. The motor is started to drive the gear to rotate, and the gear rotation drives the gear ring to rotate. When the gear ring rotates, it drives the sleeve to rotate. When the sleeve rotates, the limit plate is limited by the limit slot, and thereby the threaded rod is driven to rotate. Because the threaded rod is threadedly connected to the threaded sleeve, the threaded rod moves inside the threaded sleeve when it rotates, and the threaded rod moves, which drives the rotating sleeve to move. The movement of the rotating sleeve drives the upper support platform to move upward, and the height of the upper support platform is adjusted. It is convenient to use and quick to adjust the support height to accommodate different items.

[0016] 2. The liftable shelf drives the two vertical rods to rise when the upper supporting platform rises, and the two vertical rods drive the two limit blocks to rise when they rise, and the two limit blocks contact the two sides of the bottom of the lower supporting platform when they rise, and drive the lower supporting platform to rise, and the lower supporting platform drives the two guide rods to move when the lower supporting platform rises, and the guide rods drive the two bottom plates to move, and then the two bottom plates compress the two springs to guide and limit the lower supporting platform, which is conducive to the rising of the lower supporting platform. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a front cross-sectional view of the utility model;

[0019] Figure 3 It is a structural schematic diagram of the sleeve of the utility model;

[0020] Figure 4 It is a front cross-sectional view of the sleeve of the utility model.

[0021]

Main component symbol description

[0022] 1. Box body; 2. Fixed column; 3. Top plate; 4. Support plate; 5. Base; 6. Sleeve; 7. Threaded rod; 8. Rotating sleeve; 9. Upper support platform; 10. Threaded sleeve; 11. Limiting groove; 12. Limiting plate; 13. Lower support platform; 14. Guide rod; 15. Bottom plate; 16. Spring; 17. Vertical rod; 18. Limiting block; 19. Limiting sleeve; 20. Motor; 21. Gear; 22. Gear ring. DETAILED DESCRIPTION

[0023] The embodiment of the utility model provides a liftable shelf.

[0024] See also Figure 1 , Figure 2 , Figure 3 and Figure 4, including a box body 1, a support plate 4 is fixedly connected to the top of the box body 1, a base 5 is fixedly connected inside the box body 1, a sleeve 6 is rotatably connected inside the base 5, a threaded rod 7 is slidably connected inside the sleeve 6, an upper support platform 9 is arranged on the top of the box body 1, a rotating sleeve 8 is rotatably connected to the top of the threaded rod 7, the rotating sleeve 8 is fixedly connected to the bottom of the upper support platform 9, a lower support platform 13 is arranged at the bottom of the upper support platform 9, a limited sleeve 19 is fixedly connected inside the lower support platform 13, the threaded rod 7 passes through the limited sleeve 19 and is slidably connected to the limited sleeve 19, limited grooves 11 are arranged on both sides of the sleeve 6, and the threaded rod 7 is rotatably connected to the top of the threaded rod 7. The two sides of the bottom end of the rod 7 are fixedly connected to the limit plates 12, and the two limit plates 12 are respectively slidably connected to the inside of the two limit grooves 11. The support plate 4 is fixedly connected with a threaded sleeve 10. The threaded rod 7 passes through the threaded sleeve 10 and is threadedly connected to the threaded sleeve 10, so that the threaded rod 7 moves up and down when the threaded sleeve 10 rotates inside. The four corners of the top of the box body 1 are fixedly connected to the fixed columns 2, and the upper support platform 9 and the lower support platform 13 are respectively slidably connected to the four fixed columns 2. The bottom of both sides of the upper support platform 9 is fixedly connected with vertical rods 17. The two vertical rods 17 pass through the top of the box body 1 and slide with the box body 1 The inner sides of the two vertical rods 17 are fixedly connected to the limit blocks 18, and the two limit blocks 18 are respectively fitted with the two sides of the bottom of the lower support platform 13 to support and limit the upper support platform 9, thereby improving the stability of the upper support platform 9. The two sides of the bottom of the lower support platform 13 are fixedly connected with guide rods 14, and the two guide rods 14 pass through the two sides of the support plate 4 and are slidably connected to the support plate 4 to guide the lower support platform 13. The bottom ends of the two guide rods 14 are fixedly connected with the bottom plate 15, and the outer sides of the two guide rods 14 are sleeved with springs 16, and the two springs 16 are respectively connected with the bottom plate 15 and the support plate 4 Fixed connection, limiting and supporting the bottom plate 15 and the guide rod 14, a motor 20 is fixedly connected to the bottom end of the box body 1, a gear 21 is fixedly connected to the output end of the motor 20, a ring gear 22 is fixedly connected to the outer side of the bottom end of the sleeve 6, the gear 21 is meshingly connected with the ring gear 22, so that the motor 20 starts to drive the gear 21 to rotate, the gear 21 rotates to drive the ring gear 22 to rotate, and then drives the sleeve 6 to rotate, an empty slot is opened on the top of the support plate 4, the lower support platform 13 and the upper support platform 9 are both adapted to the empty slot, the top of the four fixed columns 2 are fixedly connected to the top plate 3, and a protective door is arranged on the front side of the box body 1.

[0025] When the utility model is in use: in the initial position, the upper support platform 9 and the lower support platform 13 are placed inside the empty groove of the support plate 4, which is convenient for placing items. The motor 20 is started to drive the gear 21 to rotate. When the gear 21 rotates, it drives the ring gear 22 to rotate. When the ring gear 22 rotates, it drives the sleeve 6 to rotate. When the sleeve 6 rotates, the limiting plate 12 is limited by the limiting groove 11, and thereby drives the threaded rod 7 to rotate. Because the threaded rod 7 is threadedly connected with the threaded sleeve 10, the threaded rod 7 moves inside the threaded sleeve 10 when it rotates, and the threaded rod 7 drives the rotating sleeve 8 to move when it moves. The rotating sleeve 8 moves and drives the upper support platform 9 to move up, and the height of the upper support platform 9 is adjusted, which is convenient to use and easy to quickly adjust the support height to adapt to different items.

[0026] When the upper support platform 9 rises, the two vertical rods 17 are driven to rise, and when the two vertical rods 17 rise, they drive the two limit blocks 18 to rise, and when the two limit blocks 18 rise, they contact the two sides of the bottom of the lower support platform 13, and drive the lower support platform 13 to rise, and when the lower support platform 13 rises, it drives the two guide rods 14 to move, and the guide rods 14 drive the two bottom plates 15 to move, and then the two bottom plates 15 compress the two springs 16, guide and limit the lower support platform 13, which is conducive to the rising of the lower support platform 13.

[0027] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A liftable shelf, comprising a box (1), characterized in that: The top of the box body (1) is fixedly connected to a support plate (4); the inside of the box body (1) is fixedly connected to a base (5); the inside of the base (5) is rotatably connected to a sleeve (6); the inside of the sleeve (6) is slidably connected to a threaded rod (7); an upper support platform (9) is provided at the top of the box body (1); the top of the threaded rod (7) is rotatably connected to a rotating sleeve (8); the rotating sleeve (8) is fixedly connected to the bottom of the upper support platform (9); a lower support platform (13) is provided at the bottom of the upper support platform (9); a limiting sleeve (19) is fixedly connected to the inside of the lower support platform (13); the threaded rod (7) passes through the limiting sleeve (19) and is slidably connected to the limiting sleeve (19).

2. The liftable rack according to claim 1, characterized in that: Limiting grooves (11) are provided on both sides of the interior of the sleeve (6); limiting plates (12) are fixedly connected to both sides of the bottom end of the threaded rod (7); the two limiting plates (12) are slidably connected to the interior of the two limiting grooves (11), respectively; a threaded sleeve (10) is fixedly connected to the interior of the support plate (4); the threaded rod (7) passes through the threaded sleeve (10) and is threadedly connected to the threaded sleeve (10).

3. The liftable rack according to claim 1, characterized in that: The four corners of the top of the box body (1) are fixedly connected with fixed columns (2), the upper support platform (9) and the lower support platform (13) are respectively slidably connected to the four fixed columns (2), the bottoms of both sides of the upper support platform (9) are fixedly connected with vertical rods (17), the two vertical rods (17) both penetrate the top of the box body (1) and are slidably connected to the box body (1), the inner sides of the two vertical rods (17) are fixedly connected with limit blocks (18), and the two limit blocks (18) are respectively fitted with the two sides of the bottom of the lower support platform (13).

4. The liftable rack according to claim 1, characterized in that: Both sides of the bottom of the lower support platform (13) are fixedly connected with guide rods (14), and the two guide rods (14) pass through both sides of the support plate (4) and are slidably connected to the support plate (4).

5. The liftable rack according to claim 4, characterized in that: The bottom ends of the two guide rods (14) are fixedly connected to a bottom plate (15), the outer sides of the two guide rods (14) are sleeved with springs (16), and the two springs (16) are fixedly connected to the bottom plate (15) and the support plate (4) respectively.

6. The liftable rack according to claim 1, characterized in that: The bottom end of the box body (1) is fixedly connected to a motor (20), the output end of the motor (20) is fixedly connected to a gear (21), the outer side of the bottom end of the sleeve (6) is fixedly connected to a gear ring (22), and the gear (21) is meshingly connected to the gear ring (22).

7. The liftable rack according to claim 3, characterized in that: The top of the support plate (4) is provided with an empty slot, the lower support platform (13) and the upper support platform (9) are both adapted to the empty slot, the tops of the four fixed columns (2) are fixedly connected to a top plate (3), and a protective door is provided on the front side of the box body (1).

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