Lifting mechanism for showcase

Abstract

The lifting mechanism comprises a display counter, a protective cover, a rotating disc, a mounting plate and an access door, a rotating motor is fixedly mounted in the display counter, the protective cover is movably mounted above the display counter, the rotating disc is rotatably mounted at the upper end of the display counter, and the mounting plate is movably mounted above the display counter. Meanwhile, a suction opening is fixedly formed in the upper end of the display counter, the air extracting pump is fixedly installed in the display counter, a connecting pipeline is arranged at the upper end of the air extracting pump, and an exhaust pipe is fixedly installed at the lower end of the air extracting pump. According to the lifting mechanism for the showcase, through cooperative use of the suction port, the connecting pipeline, the suction pump and the exhaust pipe, air in the protective cover is pumped out through the suction port and the connecting pipeline by means of the suction pump, so that the interior of the protective cover is vacuumized, and the situation that due to the fact that water and air in the protective cover make contact with exhibits for a long time, the exhibits are oxidized is prevented; therefore, the subsequent use is influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of display cabinets, in particular to a lifting mechanism for display cabinets. Background Art

[0002] Display cabinets, also known as display cabinets, are containers used to display items. They come in a variety of colors, including gold, silver, matte black, magenta, gray, etc. Display cabinets have exquisite appearance, solid structure, easy disassembly and assembly, and convenient transportation. They are widely used in company showrooms, exhibitions, department stores, advertisements, etc. They are also widely used in handicrafts, gifts, jewelry, mobile phones, glasses, clocks, tobacco, alcohol, cosmetics and other industries.

[0003] As disclosed in publication number: CN217885615U, a jewelry display counter includes a device body, a servo motor is installed inside a rectangular groove at the bottom of the device body, a driving gear is installed on the output shaft at the bottom of the servo motor, and two groups of threaded rods are installed inside the rectangular groove at the bottom of the servo motor. The utility model drives two groups of driven gears to rotate in the same direction through the driving gear, and then the driven gear drives the threaded rod to rotate spirally and rise and fall inside the threaded tube, thereby propping up the device body, which is supported on the ground by a moving roller for easy movement and transportation. Secondly, after the turntable is driven to rotate, the turntable drives the round pin to rotate into the radial groove on the surface of the groove wheel, thereby driving the groove wheel to rotate. When the round pin moves out of the radial groove on the surface of the groove wheel, the convex surface of the turntable is stuck in the concave groove on the surface of the groove wheel to limit the rotation of the groove wheel, so that the groove wheel drives the display plate to rotate intermittently.

[0004] The above device drives the round pin to rotate into the radial groove on the surface of the groove wheel through the turntable, thereby driving the groove wheel to rotate. When the round pin moves out of the radial groove on the surface of the groove wheel, the convex surface of the turntable is stuck in the concave groove on the surface of the groove wheel to limit the rotation of the groove wheel, so that the groove wheel drives the display plate to rotate intermittently. However, when valuables are stored for a long time, it is impossible to absorb moisture in the air inside the display cabinet, which is easy to cause damage to the valuables and is not convenient for protecting the valuables. In addition, most of the existing display cabinet glass covers are relatively heavy. When the user needs to lift the protective cover, it is easy to cause damage to the glass, causing personal injury. Utility Model Content

[0005] The purpose of the utility model is to provide a lifting mechanism for a display cabinet, so as to solve the problems mentioned in the above background technology that the moisture in the air inside the display cabinet cannot be absorbed, which easily causes damage to valuables and is inconvenient to protect valuables, and most of the glass covers of the display cabinets are heavy, which easily causes damage to the glass when the user needs to lift the protective cover, causing personal injury.

[0006] To achieve the above purpose, the utility model provides the following technical solutions: a lifting mechanism for a display case, comprising a display counter, a protective cover, a rotating disk, a mounting plate and an inspection door, wherein a rotating motor is fixedly installed inside the display counter, a protective cover is movably installed above the display counter, a rotating disk is rotatably installed at the upper end of the display counter, and a suction port is fixedly installed at the upper end of the display counter, and further comprising:

[0007] An air pump is fixedly installed inside the display counter, a connecting pipe is provided at the upper end of the air pump, and an exhaust pipe is fixedly installed at the lower end of the air pump;

[0008] A rotating shaft, which is rotatably mounted in the inner wall of the display counter, and a rotating handle is fixedly mounted on the rotating shaft, and a rotating rod is fixedly mounted on the rotating shaft, and a bevel gear is fixedly mounted on the rotating rod;

[0009] A mounting plate, which is fixedly mounted inside the display counter, and a threaded rod 1 is fixedly mounted on the mounting plate, and a threaded rod 2 is arranged inside the threaded rod 1, and a rotating gear is rotatably mounted on the threaded rod 1;

[0010] An access door is installed on the display counter.

[0011] Furthermore, a driving shaft is provided on the output end of the rotating motor, and a rotating rod is fixedly installed on the driving shaft, and the upper end of the rotating rod and the lower end of the rotating disk form a synchronous driving structure. The rotating rod can drive the rotating disk to rotate by the rotation of the rotating motor, which is convenient for visitors to observe the exhibits.

[0012] Furthermore, two groups of bevel gears are installed symmetrically about the center of the rotating rod, and the bevel gears cooperate with the rotating gears, and the rotating gears are threadedly connected to the second threaded rod. At the same time, the upper end of the second threaded rod is fixedly connected to the lower end of the protective cover, and the protective cover is driven to move upward when the second threaded rod moves upward.

[0013] Furthermore, the threaded rod one is installed symmetrically about the vertical center of the mounting plate, and the diameter of the threaded rod one is larger than the diameter of the threaded rod two, and the inner thread of the threaded rod one is threadedly connected with the outer thread of the threaded rod two, and the movable rod is driven to move upward synchronously through the symmetrical threaded rod one.

[0014] Furthermore, two groups of the vacuum pumps are installed symmetrically about the vertical center of the display counter, and the connecting pipes and the suction ports on the vacuum pumps are interconnected, and the exhaust pipe at the lower end of the vacuum pumps is arranged inside the display counter. The air inside the protective cover is extracted by the vacuum pump and discharged through the exhaust pipe.

[0015] Furthermore, a telescopic rod is provided at the rear end of the mounting plate, and a pressure spring is provided inside the telescopic rod, and a movable rod is movably installed inside the telescopic rod. At the same time, the movable rod forms an elastic structure through the pressure spring, and the pressure spring is used to buffer the rise and fall of the telescopic rod.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. The lifting mechanism of the display cabinet is used in coordination with the suction port, the connecting pipe, the vacuum pump and the exhaust pipe. The vacuum pump is used to extract the air in the protective cover through the suction port and the connecting pipe, so that the inside of the protective cover is vacuumed to prevent the water and air inside from contacting the exhibits for a long time, causing oxidation of the exhibits, thereby affecting the subsequent use;

[0018] 2. The lifting mechanism of the display cabinet is used through the cooperation between the bevel gear, the rotating gear, the threaded rod one and the threaded rod two. The bevel gear drives the rotating gear to rotate, so that the rotating gear drives the threaded rod two to rise, and the threaded rod two pushes the protective cover to rise, which is convenient for the staff to replace and inspect the exhibits in the display counter. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the front cross-sectional structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the side sectional structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the top view structure of the utility model;

[0022] Figure 4 This is a schematic diagram of the front view structure of the utility model;

[0023] Figure 5 For this utility model Figure 1 Enlarged structural diagram at A in the middle.

[0024] In the figure: 1. display counter; 2. protective cover; 3. rotating disk; 4. rotating motor; 5. driving shaft; 6. rotating rod; 7. suction port; 8. connecting pipe; 9. vacuum pump; 10. exhaust pipe; 11. rotating shaft; 12. rotating rod; 13. bevel gear; 14. threaded rod one; 15. threaded rod two; 16. rotating gear; 17. rotating handle; 18. movable rod; 19. telescopic rod; 20. pressure spring; 21. mounting plate; 22. inspection door. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-Figure 5 The utility model provides a technical solution: a lifting mechanism for a display cabinet, including a display counter 1, a protective cover 2, a rotating disk 3, a rotating motor 4, a driving shaft 5, a rotating rod 6, a suction port 7, a connecting pipe 8, an air pump 9, an exhaust pipe 10, a rotating shaft 11, a rotating rod 12, a bevel gear 13, a threaded rod 14, a threaded rod 2 15, a rotating gear 16, a rotating handle 17, a movable rod 18, a telescopic rod 19, a pressure spring 20, a mounting plate 21, and an inspection door 22.

[0027] In this embodiment:

[0028] The display counter 1 includes a display counter 1, a protective cover 2, a rotating disk 3, a mounting plate 21 and an inspection door 22. A rotating motor 4 is fixedly installed inside the display counter 1, and a protective cover 2 is movably installed above the display counter 1. The rotating disk 3 is rotatably installed at the upper end of the display counter 1. At the same time, a suction port 7 is fixedly installed at the upper end of the display counter 1. The display counter 1 also includes:

[0029] An air pump 9 is fixedly installed inside the display counter 1, and a connecting pipe 8 is provided at the upper end of the air pump 9, and an exhaust pipe 10 is fixedly installed at the lower end of the air pump 9;

[0030] A rotating shaft 11 is rotatably mounted in the inner wall of the display counter 1, and a rotating handle 17 is fixedly mounted on the rotating shaft 11, and a rotating rod 12 is fixedly mounted on the rotating shaft 11, and a bevel gear 13 is fixedly mounted on the rotating rod 12;

[0031] The mounting plate 21 is fixedly mounted inside the display counter 1, and a threaded rod 14 is fixedly mounted on the mounting plate 21, and a threaded rod 2 15 is arranged inside the threaded rod 14, and a rotating gear 16 is rotatably mounted on the threaded rod 14;

[0032] An access door 22 is installed on the display counter 1 .

[0033] A driving shaft 5 is provided on the output end of the rotating motor 4, and a rotating rod 6 is fixedly installed on the driving shaft 5, and the upper end of the rotating rod 6 and the lower end of the rotating disk 3 constitute a synchronous driving structure. The rotating rod 6 can drive the rotating disk 3 to rotate by the rotation of the rotating motor 4, so that visitors can observe the exhibits conveniently. Two groups of helical gears 13 are installed symmetrically about the center of the rotating rod 12, and the helical gears 13 match the rotating gear 16, and the rotating gear 16 is threadedly connected with the threaded rod 15. At the same time, the upper end of the threaded rod 15 is fixedly connected to the lower end of the protective cover 2, and the protective cover is driven by the upward movement of the threaded rod 15. 2 moves upward, the threaded rod 14 is installed symmetrically about the vertical center of the mounting plate 21, and the diameter of the threaded rod 14 is larger than the diameter of the threaded rod 2 15, and the inner thread of the threaded rod 14 is threadedly connected with the outer thread of the threaded rod 2 15, and the movable rod 18 is driven to move upward synchronously through the symmetrical threaded rod 14, and the rear end of the mounting plate 21 is provided with a telescopic rod 19, and a pressure spring 20 is provided inside the telescopic rod 19, and the movable rod 18 is movably installed inside the telescopic rod 19, and the movable rod 18 forms an elastic structure through the pressure spring 20, and the pressure spring 20 buffers the rise and fall of the telescopic rod 19;

[0034] Two groups of vacuum pumps 9 are installed symmetrically about the vertical center of the display counter 1, and the connecting pipe 8 on the vacuum pump 9 is interconnected with the suction port 7, and the exhaust pipe 10 at the lower end of the vacuum pump 9 is arranged inside the display counter 1. The air inside the protective cover 2 is extracted by the vacuum pump 9 and discharged through the exhaust pipe 10.

[0035] Working principle: When using the device, first place the display cabinet in the correct position, rotate the handle 17, so that it drives the bevel gear 13 on the rotating rod 12 to rotate through the rotating shaft 11, and the bevel gear 13 drives the rotating gear 16 to rotate, and at the same time, the rotating gear 16 drives the threaded rod 2 15 connected with the thread to rise along the threaded rod 1 14, and at the same time drives the movable rod 18 at the rear end of the protective cover 2 to rise synchronously along the telescopic rod 19, so that the protective cover 2 is opened upwards, and the exhibits are placed in the display counter 1;

[0036] When the protective cover 2 is put down again, the vacuum pump 9 is started to extract the air inside the protective cover 2 through the suction port 7 at the upper end of the display counter 1 through the connecting pipe 8, and discharge it to the outside of the protective cover 2 through the exhaust pipe 10, so that the inside of the protective cover 2 is in a vacuum state, thereby preventing the water vapor inside the protective cover 2 from contacting the exhibits for a long time, causing oxidation, and affecting the subsequent exhibition or use of the exhibits.

[0037] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0038] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A lifting mechanism for a display cabinet, comprising a display counter (1), a protective cover (2), a rotating plate (3), a mounting plate (21) and an inspection door (22), characterized in that: A rotating motor (4) is fixedly installed inside the display counter (1), a protective cover (2) is movably installed above the display counter (1), a rotating disk (3) is rotatably installed at the upper end of the display counter (1), and a suction port (7) is fixedly installed at the upper end of the display counter (1), and further comprises: An air pump (9) fixedly mounted inside the display counter (1), with a connecting pipe (8) provided at the upper end of the air pump (9), and an exhaust pipe (10) fixedly mounted at the lower end of the air pump (9); A rotating shaft (11) is rotatably mounted in the inner wall of the display counter (1), a rotating handle (17) is fixedly mounted on the rotating shaft (11), a rotating rod (12) is fixedly mounted on the rotating shaft (11), and a bevel gear (13) is fixedly mounted on the rotating rod (12); A mounting plate (21) is fixedly mounted inside the display counter (1), and a threaded rod (14) is fixedly mounted on the mounting plate (21), and a threaded rod (15) is arranged inside the threaded rod (14), and a rotating gear (16) is rotatably mounted on the threaded rod (14); An inspection door (22) is installed on the display counter (1).

2. The lifting mechanism for a display cabinet according to claim 1, characterized in that: A drive shaft (5) is mounted on the output end of the rotating motor (4), a rotating rod (6) is fixedly mounted on the drive shaft (5), and the upper end of the rotating rod (6) and the lower end of the rotating disk (3) form a synchronous driving structure.

3. The lifting mechanism for a display cabinet according to claim 1, characterized in that: Two groups of the bevel gears (13) are symmetrically mounted about the center of the rotating rod (12), and the bevel gears (13) cooperate with the rotating gears (16), and the rotating gears (16) are threadedly connected to the second threaded rod (15), while the upper end of the second threaded rod (15) is fixedly connected to the lower end of the protective cover (2).

4. The lifting mechanism for a display cabinet according to claim 1, characterized in that: The threaded rod one (14) is installed symmetrically with respect to the vertical center of the mounting plate (21), the diameter of the threaded rod one (14) is larger than the diameter of the threaded rod two (15), and the inner thread of the threaded rod one (14) is threadedly connected with the outer thread of the threaded rod two (15).

5. The lifting mechanism for a display cabinet according to claim 1, characterized in that: Two groups of the vacuum pumps (9) are installed symmetrically about the vertical center of the display counter (1), and the connecting pipes (8) on the vacuum pumps (9) are interconnected with the suction ports (7), and the exhaust pipes (10) at the lower ends of the vacuum pumps (9) are arranged inside the display counter (1).

6. The lifting mechanism for a display cabinet according to claim 1, characterized in that: A telescopic rod (19) is arranged at the rear end of the mounting plate (21), a pressure spring (20) is arranged inside the telescopic rod (19), and a movable rod (18) is movably installed inside the telescopic rod (19), and the movable rod (18) forms an elastic structure through the pressure spring (20).

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