Jet display case with lifting cover

Abstract

The utility model provides a kind of jet display cabinet with lifting cover, comprising: cabinet, the cabinet is equipped with upper layer baffle, lower layer baffle and be equipped with between the smoke machine, the lower layer baffle includes L-shaped fixed sheet, the bottom of the smoke machine is fixed in the cabinet interior by the L-shaped fixed sheet, the edge of the upper layer baffle is equipped with sealing strip, and the display board below in the cabinet is equipped with smoke hole;Cover body, be equipped with in the top of the cabinet, the top of the cover body is connected with power device, the cover body is driven under the power device and carries out lifting movement;Sleeve, be equipped with in the top of the cover body, the top of the sleeve is connected with ceiling.The utility model can greatly improve the stability of smoke machine operation, avoid smoke leakage and equipment swing, ensure that the uniformity and stability of smoke effect;In addition, the cover body above smoke machine can be lifted with smoke machine work cooperation, to provide more novel display effect.

Description

Technical Field

[0001] This utility model relates to the field of display cabinet technology, specifically to a jet display cabinet with a lifting cover. Background Technology

[0002] In the field of commercial display, unique display effects can strongly attract consumers and enhance product appeal and sales. Traditional display cases only have basic display functions, lacking richness and uniqueness in their display effects. Existing display cases with special effects, such as those with smoke functions, have simple smoke generator installations but poor long-term stability, easily shaking and shifting, thus affecting the smoke effect. Moreover, most display cases cannot allow the glass cover to rise and fall smoothly and perfectly coordinate with the smoke effect, reducing their visual appeal and display effect, and failing to meet users' needs for novel display experiences. Utility Model Content

[0003] In view of the deficiencies in the existing technology, the purpose of this utility model is to provide a jet display case with a lifting cover.

[0004] This utility model is achieved through the following technical solution:

[0005] This utility model provides a jet display case with a lifting cover, comprising:

[0006] The cabinet has an upper partition, a lower partition, and a smoke machine located between them. The lower partition includes an L-shaped fixing piece, and the bottom of the smoke machine is fixed to the inside of the cabinet by the L-shaped fixing piece. The edge of the upper partition is equipped with a sealing strip, and a smoke vent is provided below the display panel inside the cabinet.

[0007] A cover is located above the cabinet, and the top of the cover is connected to a power device. The cover moves up and down under the drive of the power device.

[0008] A sleeve is provided above the cover, and the top end of the sleeve is connected to the ceiling.

[0009] Optionally, the sealing strip is tightly attached to the upper partition using double-sided tape, and the L-shaped fixing piece is fixedly connected to the lower partition using bolts.

[0010] Optionally, the top of the cabinet is provided with a slot, and the cover is placed on the slot; a movable plate is provided above the slot wall on the side of the slot closest to the inside of the cabinet.

[0011] Optionally, openings are provided at the four corners of the top of the cover, and the interior of the cover is provided with fasteners for connecting to the power device;

[0012] The power unit includes a hook, a rope, a pulley, a drum, a servo motor, and a controller. The hook passes through the opening and is connected to the fixing member. One end of the rope is looped on the hook, and the other end of the rope passes through the pulley and is wound around the drum. The drum is connected to the servo motor, and the servo motor is connected to the controller.

[0013] Optionally, the controller is a PLC controller.

[0014] Optionally, the pulley is a double-groove pulley, and the rope is wound around the two grooves on the surface of the pulley.

[0015] Optionally, when the cover is lowered to its lowest point, the top of the cover is higher than the bottom of the sleeve.

[0016] Optionally, the top of the sleeve is tightly connected to the steel frame of the ceiling by bolts, and the two ends of the cable are anchored to the embedded structural components of the ceiling by wrapping the cable around the preset anchor points on the sleeve.

[0017] Optionally, the cabinet is equipped with a light pole inside, which is fixed to the inner wall of the cabinet by a buckle.

[0018] Optionally, the cabinet is provided with an access door on its side.

[0019] Compared with the prior art, the present invention has at least one of the following beneficial effects:

[0020] This utility model uses upper and lower partitions to fix the smoke machine. The sealing strip of the upper partition and the L-shaped fixing piece of the lower partition work together to greatly improve the stability of the smoke machine's operation, prevent smoke leakage and equipment shaking, and ensure the uniformity and stability of the smoke effect. In addition, the cover above the smoke machine can be raised and lowered in coordination with the operation of the smoke machine, thereby providing a more novel display effect. Attached Figure Description

[0021] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0022] Figure 1 This is a schematic diagram of the overall structure of a jet display cabinet with a lifting cover in one embodiment of the present invention;

[0023] Figure 2 This is a side sectional view of a jet display cabinet with a lifting cover according to one embodiment of the present invention;

[0024] Figure 3 This is a schematic diagram of the air jet section of a jet display cabinet with a lifting cover in one embodiment of the present invention;

[0025] Figure 4 This is a schematic diagram of the structure of the cover of a jet display cabinet with a lifting cover in one embodiment of the present invention;

[0026] In the diagram, the corresponding labels are: 1-cabinet, 2-cover, 3-sleeve, 4-ceiling, 5-rope, 6-pulley, 7-drum, 8-servo motor, 9-access door, 10-smoke machine, 11-movable plate, 12-hook, 13-slot, 14-sealing strip, 15-upper partition, 16-lower partition, 17-L-shaped fixing piece, 18-smoke vent. Detailed Implementation

[0027] The present invention will now be described in detail with reference to specific embodiments. These embodiments will help those skilled in the art to further understand the present invention, but do not limit the present invention in any way. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention. These all fall within the protection scope of the present invention.

[0028] It should be noted that the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. Furthermore, the terms "first," "second," etc., are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the present invention described herein can be implemented in a sequence other than that illustrated or described herein.

[0029] Furthermore, in the description of this utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0030] Reference Figures 1 to 3An embodiment of this utility model provides a jet display cabinet with a lifting hood, including a cabinet body 1, a hood 2, a smoke machine 10, and a sleeve 3. The cabinet body 1 is the main body of the display cabinet, with an upper partition 15 and a lower partition 16 inside. The smoke machine 10 is located between the two partitions and fixed by the upper and lower partitions. The lower partition 16 includes an L-shaped fixing piece 17 for fixing the smoke machine 10. The bottom of the smoke machine 10 is fixed to the inside of the cabinet body 1 by the L-shaped fixing piece 17, which provides stable support for the smoke machine 10. A sealing strip 14 is installed on the edge of the upper partition 15 to prevent smoke leakage. A smoke diffusion hole 18 is provided below the display panel inside the cabinet body 1 for smoke diffusion. The hood 2 is located above the cabinet body 1, and its top is connected to a power device. The hood 2 moves up and down in conjunction with the smoke machine 10 under the drive of the power device. The sleeve 3 is located above the hood 2, and its top is connected to the ceiling 4, allowing the top of the display cabinet to directly connect to the ceiling 4.

[0031] Specifically, the upper partition 15 and the lower partition 16 work together to clamp and limit the movement of the smoke machine 10, forming a sandwich space between them. The upper partition 15 and the lower partition 16 are precisely placed between them. The upper partition 15 is also tightly fitted to the inner wall of the cabinet through its edge sealing strip 14 (such as silicone sealant), applying pressure to the smoke machine 10 from above to prevent it from shaking up and down. That is, the sealing strip 14 not only prevents smoke leakage, but also compensates for the installation gap through elastic deformation, indirectly enhancing the vertical stability of the smoke machine. The sealing structure of the upper partition 15, together with the L-shaped fixing piece of the lower partition, achieves overall fixation of the smoke machine 10. The lower partition 16 is an independent structural layer inside the cabinet, and the L-shaped fixing piece 17 is a component on the lower partition 16 specifically used to fix the bottom of the smoke machine. The L-shaped fixing piece 17 is fixed at a specific position on the lower partition (such as at the corresponding mounting hole at the bottom of the smoke machine). Its design features a partially reinforced structure, covering only the bottom contact area of ​​the smoke machine to provide point-to-point rigid support (e.g., Figure 3 (As shown). The smoke generator 10 is fixed between two partitions, while the display panel is installed in the display area of ​​cabinet 1, above the smoke generator 10. The display panel and the upper partition 15 are at the same level. A smoke dispersing hole 18 is provided below the display panel. The smoke generated by the smoke generator 10 rises through the gap between the two partitions and is evenly diffused into the display area (as shown). Figure 2 (As shown). The specific path of the smoke is: smoke machine 10 → interlayer between upper partition 15 and lower partition 16 → smoke dispersal hole 18 → display area.

[0032] In this embodiment of the utility model, while the smoke machine 10 is working, the hood 2 is driven to move up and down by the power device. The smoke enters the display area through the smoke dispersing hole 18, which solves the problems of the traditional display cabinet having a single display function and poor coordination between the hood lifting and the smoke effect. This realizes the jet lifting display function and provides a more novel and unique display effect. The sealing strip 14 of the upper partition 15 and the L-shaped fixing piece 17 of the lower partition 16 work together to greatly improve the stability of the operation of the smoke machine 10, avoid smoke leakage and equipment shaking, and ensure the uniformity and stability of the smoke effect.

[0033] To improve the strength and service life of the display cabinet, in some embodiments, the cabinet body 1 is welded from 1.5mm thick cold-rolled steel plate and the surface is electrostatically sprayed (RAL 9010 color code), and its corrosion resistance meets the ISO 9227 standard. The upper partition 15 is made of 3mm thick aluminum alloy plate, and the lower partition 16 is made of 2mm thick galvanized cold-rolled plate, with L-shaped fixing pieces 17 stamped out.

[0034] To effectively prevent smoke leakage, in some embodiments, the sealing strip 14 is made of silicone, which can withstand temperatures from -40℃ to 200℃ and has good elasticity and sealing performance. The sealing strip 14 is connected by double-sided tape such as 3M adhesive tape. TM VHB TM Double-sided tape is tightly adhered to the upper partition 15 to ensure a tight seal.

[0035] To improve the stability of the smoke machine 10 installation, in some embodiments, the L-shaped fixing plate 17 is fixedly connected to the lower partition plate 16 by bolts, which facilitates the installation and disassembly of the smoke machine 10.

[0036] Specifically, the bottom of the smoke machine 10 has mounting holes that align with the pre-drilled holes of the L-shaped fixing plate 17. The smoke machine 10 is placed in the preset position of the lower partition 16, and the L-shaped fixing plate 17 is fixed to the lower partition 16 with bolts to clamp the bottom of the smoke machine 10.

[0037] For example, the smoke machine 10 is fixed to the horizontal arm of the L-shaped fixing plate 17 by M8 stainless steel hex bolts.

[0038] In other embodiments, the L-shaped fixing piece 17 can also be fixed to the lower partition 16 by welding or integral molding to form a rigid structure. For example, if the lower partition 16 is made of 2mm galvanized cold-rolled steel sheet, the L-shaped fixing piece 17 is directly formed onto the surface of the partition by stamping. The L-shaped fixing piece 17 is integrally formed with the lower partition 16, and its horizontal arm is fixed to the bottom of the smoke machine 10 by bolts, forming a double connection structure.

[0039] It should be noted that the L-shaped fixing piece 17 is not directly connected to the cabinet 1. The lower partition 16 is fixed inside the cabinet 1 by welding or bolts. The L-shaped fixing piece 17, as an auxiliary component of the lower partition 16, is only responsible for clamping the smoke machine 10. Its stability depends on the connection between the lower partition 16 and the cabinet 1.

[0040] By fixing the smoke machine 10 as described above, the problem of unstable operation of existing display cabinet smoke machines is effectively solved, which can improve the safety and stability of the smoke machine 10 and reduce the risks during operation.

[0041] In some embodiments, the smoke dispersing holes 18 below the display panel inside the cabinet 1 are circular holes, and the smoke dispersing holes 18 are evenly distributed below the display panel. For example, the diameter of the smoke dispersing holes 18 is 5 to 8 millimeters, thereby ensuring that the smoke can enter the display area of ​​the display cabinet evenly and in an appropriate amount.

[0042] In some embodiments, the top of the cabinet 1 is provided with a slot 13, which is fixed to the cabinet 1 with screws. The cover 2 is placed on the slot 13, and the cover 2 can be a glass cover. The slot 13 is made of aluminum alloy, and a soft rubber cushioning pad is pasted inside. The rubber cushioning pad plays a buffering role to prevent the cover 2 from colliding and being damaged by the slot 13. A movable plate 11 is provided on the upper part of the slot wall near the inside of the cabinet 1. The main body of the movable plate is made of medium density board (MDF) with PVC veneer on the surface and the edges are rounded (R angle ≥ 2mm) to avoid safety hazards.

[0043] Specifically, the main functions of the movable plate 11 are: 1) Safety protection: by rounding the edges, sharp corners are eliminated to prevent operators or equipment from being scratched when in contact; 2) Structural guidance: located on the side of the slot 13 near the inside of the cabinet 1, it helps the cover 2 to be accurately aligned during the lifting and lowering process, preventing deviation or jamming; 3) Buffering assistance: working in conjunction with the rubber buffer pad in the slot 13, it reduces the rigid collision between the cover 2 and the slot 13, extending the equipment life.

[0044] In some embodiments, openings are provided at the four corners of the top of the cover 2, and the interior of the cover 2 is provided with fasteners for connecting to the power device; the power device includes a hook 12, a rope 5, a pulley 6, a drum 7, a servo motor 8, and a controller, wherein, for example Figure 4As shown, hook 12 passes through the opening and connects to the fixing component. For example, hook 12 is a galvanized hook. Rope 5 can be made of steel wire rope. One end of rope 5 is looped onto hook 12, and the other end passes through pulley 6 and is wound around drum 7. Pulley 6 contains ball bearings. Drum 7 is connected to servo motor 8, which is connected to a controller. The controller can precisely adjust various operating parameters of servo motor 8 according to a preset program, achieving precise control of servo motor 8 and ensuring precise coordination between the lifting and lowering of the hood 2 and the operation of the smoke machine 10. Servo motor 8 starts and operates under the control of the controller, transmitting its power to drum 7. Drum 7 rotates, causing rope 5 to wind around or release on its surface. After changing direction through pulley 6, rope 5 connects to hook 12 of hood 2, thereby driving hood 2 to lift and lower. During lifting and lowering, servo motor 8 precisely adjusts its rotation speed and direction according to the controller's control signal to ensure smooth lifting and lowering of hood 2. Simultaneously, smoke machine 10 operates, and smoke enters the display area through smoke dispersing holes 18 on the display panel, thus achieving the air jet lifting and display function.

[0045] In some preferred embodiments, the controller is a PLC controller, which has the advantages of high precision, high reliability and flexibility. It can accurately control the start, stop, speed and direction of the servo motor 8 to ensure that the lifting and lowering movement of the cover 2 is smooth and accurate.

[0046] As an example, the servo motor 8 is a Yaskawa Σ-7 series 400W servo motor, equipped with a PLC controller (Mitsubishi FX5U-32MT / ES), which supports Modbus protocol communication and has a positioning accuracy of ±0.1mm.

[0047] In some embodiments, the pulley 6 is a double-groove pulley, which allows it to simultaneously accommodate and guide two ropes. The ropes 5 are wound around the two grooves on the surface of the pulley 6. The double-groove design of the pulley 6, with the wire ropes wound in both grooves, effectively increases the contact area and friction between the ropes 5 and the pulley 6 during transmission, thereby improving the transmission efficiency, smoothness, and stability of the lifting of the cover 2. In addition, the double-groove design gives the pulley 6 a higher load-bearing capacity, enabling it to withstand greater weight and tension.

[0048] In some implementations, when the cover 2 is lowered to its lowest point, the top of the cover 2 is a certain distance higher than the bottom of the sleeve 3. For example, this distance is 40mm to 60mm. The height design of the cover 2 when it falls can block the hook 12 at the top of the cover 2, which not only makes the overall appearance of the display cabinet more beautiful, but also provides a stable space for the cover 2 to rise and fall, ensuring the smoothness of the process when the cover 2 is opened and raised.

[0049] In some embodiments, the sleeve 3 is made of seamless SUS304 stainless steel tubing with a wall thickness of 2mm. The top of the sleeve 3 is tightly connected to the steel frame of the ceiling 4 by bolts. A rope is wrapped around a preset anchor point on the sleeve 3, and both ends of the rope are anchored to the embedded structural components of the ceiling 4. This double fixing method further enhances the stability of the connection between the sleeve 3 and the ceiling 4, ensuring that the position of the sleeve 3 remains constant during long-term use and preventing displacement or loosening caused by external forces.

[0050] In some implementations, the cabinet 1 is equipped with light poles distributed around its inner wall. For example, these light poles use LED strips, which are energy-efficient, have a long lifespan, and generate little heat, making them suitable for extended use. The wiring is connected to a smart controller, allowing for adjustment of brightness and color. Depending on the display requirements, light poles with different color temperatures (such as warm light, cool light, or natural light) can be selected to enhance the display effect. The light poles are fixed to the inner wall of the cabinet 1 using clips, making installation and removal very convenient without the need for complex tools. Furthermore, the clip design ensures the light poles are firmly fixed to the inner wall of the cabinet 1, preventing them from falling off due to vibration or movement. The clip design is suitable for various types of light poles and fixtures, facilitating pole replacement. The light poles are evenly distributed around the inner wall of the cabinet 1, providing ample and uniform lighting to the display area and highlighting the details of the displayed items. The uniform lighting inside the display cabinet can create a unique display atmosphere and achieve a novel display effect.

[0051] In other implementations, the position of the light pole can be adjusted according to display requirements to meet lighting effect needs.

[0052] In other implementations, depending on the design requirements of the display case, the usage scenario, and the function of the light pole, the light pole can also be fixed inside the display case in other ways, such as magnetic attraction, sliding rails, hooks, bracket fixing, etc.

[0053] To facilitate the maintenance and repair of the internal equipment of the display case, in some embodiments, the side of the cabinet 1 is provided with an inspection door 9 for easy maintenance of the internal equipment. The smoke machine 10 can be seen by opening the inspection door 9 from the side. The inspection door 9 adopts an embedded structure design and is provided with EPDM EPDM rubber sealing strips on the edges, with a dustproof rating of IP54 to meet the sealing requirements of the display case.

[0054] In one specific embodiment, the installation process of the display case is as follows:

[0055] First, open the access door 9 from the side of the display case. When installing the smoke machine 10, first place the upper shelf 15 and embed silicone sealing strips around its edges, using 3M... TM VHB TMDouble-sided tape is used for bonding; the smoke machine 10 is fixed to the horizontal arm of the L-shaped fixing plate 17 using M8 stainless steel hex bolts. The smoke machine 10 is placed between the two partitions, aligning the mounting holes at the bottom of the smoke machine 10 with the holes on the L-shaped fixing plate 17. Each bolt is tightened to the specified torque to ensure a stable installation. After installation, the smoke machine 10 is tested. Power is connected, and the smoke output and duration are set via remote control. The smoke dispersing holes 18 are circular, approximately 6 mm in diameter, and evenly distributed below the display panel. After turning on the smoke machine 10, the smoke output from the smoke dispersing holes 18 below the display panel is observed.

[0056] When installing the glass cover, first install the movable plate 11 on the upper part of the cabinet 1, then carefully lift the glass cover for trial installation. Two workers work together to slowly lower the glass cover into the slot 13 on the upper part of the cabinet 1.

[0057] When installing sleeve 3, professional measuring tools are used to accurately position the glass cover within cabinet 1. Holes are made at the four corners of the glass cover, through which galvanized hooks pass and connect to internal fasteners. A steel wire rope is looped around hook 12, passes over pulley 6, and winds onto drum 7. Then, sleeve 3 is placed in the appropriate position at a pre-calculated angle. The top of sleeve 3 is tightly connected to the ceiling steel frame with high-strength bolts, forming a stable and rigid structure. Simultaneously, high-strength steel wire rope is used to securely anchor both ends of sleeve 3 to the pre-embedded structural components of the ceiling by wrapping around the pre-set anchor points.

[0058] The servo motor 8 is mounted on the ceiling 4 and secured with a motor mounting bracket. The connection between the bracket and the ceiling 4 uses thickened steel plates and high-strength expansion bolts to ensure stability. After installation, the output shaft of the servo motor 8 is connected to the shaft of the drum 7 using a high-precision coupling to ensure the stability and coaxiality of power transmission. The PLC controller is set to advance the start signal of the smoke machine 10 by 0.5 seconds before the motor rise command, ensuring that smoke is released before the glass cover rises.

[0059] After installation, connect the power supply to the motor and conduct a power-on test. The operator uses buttons on the remote control to start, stop, rotate forward and reverse the servo motor 8, thereby controlling the raising and lowering of the glass cover. During the test, the raising and lowering of the glass cover is observed in real time. If any jamming or positional deviation occurs, the connections of each component are checked and adjusted promptly to ensure that the glass cover can be raised and lowered smoothly and accurately.

[0060] In the above embodiment of this utility model, the smoke machine 10 is fixed by upper and lower partitions. The sealing strip 14 of the upper partition 15 and the L-shaped fixing piece 17 of the lower partition 16 work together to greatly improve the stability of the operation of the smoke machine 10, prevent smoke leakage and equipment shaking, and ensure the uniformity and stability of the smoke effect. In addition, the cover 2 above the smoke machine 10 can be raised and lowered in coordination with the operation of the smoke machine 10, thereby providing a novel display effect.

[0061] Furthermore, the interaction between the double-groove pulley and rope 5 effectively increases the friction during transmission, thereby improving the efficiency and smoothness of the lifting and lowering of the cover 2. The height design of the cover 2 when it falls not only optimizes the appearance but also ensures the stability of the lifting and lowering.

[0062] In the above embodiments, the servo motor 8 is precisely controlled by the controller, so that the lifting of the cover 2 can be precisely coordinated with the operation of the smoke machine 10. The uniform lighting inside the display case can create a unique display atmosphere, thereby meeting the market's pursuit of novel display effects.

[0063] The specific embodiments of this utility model have been described above. It should be understood that this utility model is not limited to the specific embodiments described above, and those skilled in the art can make various modifications or variations within the scope of the claims, which do not affect the substantive content of this utility model.

Claims

1. A jet-powered display case with a lifting hood, characterized in that, include: The cabinet has an upper partition, a lower partition, and a smoke machine located between them. The lower partition includes an L-shaped fixing piece, and the bottom of the smoke machine is fixed to the inside of the cabinet by the L-shaped fixing piece. The edge of the upper partition is equipped with a sealing strip, and a smoke vent is provided below the display panel inside the cabinet. A cover is located above the cabinet, and the top of the cover is connected to a power device. The cover moves up and down under the drive of the power device. A sleeve is provided above the cover, and the top end of the sleeve is connected to the ceiling.

2. The jet display case with lifting cover according to claim 1, characterized in that, The sealing strip is tightly attached to the upper partition with double-sided tape, and the L-shaped fixing piece is fixedly connected to the lower partition with bolts.

3. The jet display case with lifting cover according to claim 1, characterized in that, The top of the cabinet is provided with a slot, and the cover is placed on the slot; a movable plate is provided above the slot wall on the side of the slot closest to the inside of the cabinet.

4. The jet display case with lifting cover according to claim 1, characterized in that, The cover has openings at all four corners of its top, and the interior of the cover has fasteners for connecting to the power unit. The power unit includes a hook, a rope, a pulley, a drum, a servo motor, and a controller. The hook passes through the opening and is connected to the fixing member. One end of the rope is looped on the hook, and the other end of the rope passes through the pulley and is wound around the drum. The drum is connected to the servo motor, and the servo motor is connected to the controller.

5. The jet display case with lifting cover according to claim 4, characterized in that, The controller is a PLC controller.

6. The jet display case with lifting cover according to claim 4, characterized in that, The pulley is a double-groove pulley, and the rope is wound around the two grooves on the surface of the pulley.

7. The jet display case with lifting cover according to claim 1, characterized in that, When the cover is lowered to its lowest point, the top of the cover is higher than the bottom of the sleeve.

8. The jet display case with lifting cover according to claim 1, characterized in that, The top of the sleeve is tightly connected to the steel frame of the ceiling by bolts, and the two ends of the cable are anchored to the pre-embedded structural components of the ceiling by wrapping the cable around the preset anchor points on the sleeve.

9. The jet display case with lifting cover according to claim 1, characterized in that, The cabinet is equipped with a light pole, which is fixed to the inner wall of the cabinet by a buckle.

10. The jet display case with lifting cover according to claim 1, characterized in that, The cabinet has an inspection door on its side.

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