Speaker with air imaging technology

Abstract

The invention discloses a spokesstand with an air imaging technology, which comprises a table and an imaging box located in the table, a circulating cleaning part close to the top is arranged on the inner side of the table, and a horizontal and rotatable annular cleaning box is arranged on the circulating cleaning part. A plurality of carrying frames which are evenly distributed in the circumferential direction are connected to the periphery of the annular cleaning box in a sliding mode in the radial direction. According to the invention, the circular cleaning part is arranged on the inner side of the table, the circular cleaning part is provided with the annular cleaning box, the annular cleaning box is provided with the carrying frame capable of going in and out, the carrying frame is provided with the imaging mirror for imaging refraction, and the imaging mirror can be washed, dried and wiped and cleaned after entering the annular cleaning box. And after cleaning is completed, the cleaned imaging mirror can be driven to be located above the light cylinder on the imaging box by controlling the carrying frame to slide, then image light rays emitted by the light cylinder are clearly refracted, through the arrangement, the spokesstand has the advantage that the imaging mirror is more convenient to clean, and the definition of aerial imaging is greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of speaking platforms, and in particular to a speaking platform with air imaging technology. Background Art

[0002] Air imaging technology is a method of using an imaging mirror to reflect image light. The reflected image is formed by the reflection and diffraction functions of particles in the air. This technology is widely used in many fields. At present, the core of air imaging technology is a display that emits light and an imaging mirror that refracts light. The imaging mirror refracts the image light emitted by the display and then displays it in the air at its light exit slot.

[0003] At present, places where speeches are required, such as shopping malls, conference halls, and halls, are usually equipped with podiums. In order to improve the efficiency of speakers, imaging equipment is usually installed on the podium. The function of the imaging equipment is to magnify and project the speech manuscript into the air, making it easier for speakers to obtain the speech content, making the speech smoother and more natural.

[0004] However, the above-mentioned speech machine with aerial imaging technology still has some shortcomings when used: the imaging mirror in the imaging box is prone to dust accumulation on its surface after a period of use, and the dust will block the transmission of light, thereby affecting the clarity of the aerial imaging; and the existing technology usually adopts manual unpacking and cleaning, which not only affects the use of the speech machine, but also easily leads to the problem of incomplete cleaning. Summary of the Invention

[0005] The purpose of the present invention is to solve the problems mentioned in the background technology and to propose a speaking platform with air imaging technology.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A speaking platform with air imaging technology includes a table and an imaging box located inside the table, a circulating cleaning part near the top is provided on the inner side of the table, and a horizontal and rotatable annular cleaning box is provided on the circulating cleaning part, and a plurality of circumferentially evenly distributed carriers are radially slidably connected to the outer periphery of the annular cleaning box, and the imaging box is located below the rear side of the annular cleaning box and includes a light cylinder located at the top and an independently arranged imaging mirror, and the imaging mirror is provided on the carrier, when the carrier moves radially to the extreme state, the imaging mirror is in two states of being located inside and outside the annular cleaning box, and in these two states, the connection between the annular cleaning box and the carrier is in a closed state, and a cleaning mechanism for cleaning the mirror surface of the imaging mirror is provided in the annular cleaning box, and the bottom of the annular cleaning box is connected to a medium switching control valve group through a circulating pipe group, and the outer sleeve of the annular cleaning box is provided with a closed storage box fixedly connected to the table, and the closed storage box and the annular cleaning box are rotatably connected and have the function of sealing and storing part of the imaging mirror.

[0008] As a further description of the above technical solution:

[0009] The carrier includes a transmission shaft and a positioning ring fixed on the transmission shaft, the imaging mirror fixed sleeve is arranged in the positioning ring, the outer peripheral wall of the annular cleaning box is provided with an entry and exit window, the transmission shaft passes through the inner peripheral wall of the annular cleaning box and is fixed with a sealing plate located on both sides of the positioning ring and sealingly matched with the entry and exit window.

[0010] As a further description of the above technical solution:

[0011] The closed storage box is C-shaped with a notch facing rearward, and the inner wall of the closed storage box is provided with two entry and exit windows that seal with the sealing plate, an exhaust pipe is provided in the middle of the bottom of the closed storage box, and an air filter assembly is provided at the open end of the closed storage box.

[0012] As a further description of the above technical solution:

[0013] The cleaning mechanism includes a rotating ring, a cleaning roller and a transmission assembly. There are two rotating rings and they are arranged near the upper and lower sides of the annular cleaning box. One end of the cleaning roller is rotatably connected to the outer peripheral wall of the rotating ring and a cleaning cloth is fixedly sleeved on it. The transmission assembly is provided with an intermediate shaft that is sealed and passes through the annular cleaning box and is rotatably arranged. When the intermediate shaft rotates, the rotating ring and the cleaning roller both rotate.

[0014] As a further description of the above technical solution:

[0015] The transmission combination includes a bevel gear ring and a transmission bevel gear. The top and bottom of the annular cleaning box are fixedly connected to the bevel gear ring. The cleaning roller is fixedly sleeved with a transmission bevel gear that meshes with the adjacent bevel gear ring. One end of the intermediate shaft is fixedly connected to an intermediate bevel gear that meshes with the two rotating rings.

[0016] As a further description of the above technical solution:

[0017] The outer sleeve of the light cylinder is provided with a sealing butt sleeve which is slidably arranged up and down. The top of the sealing butt sleeve is bonded with a rubber gasket which is sealed with the lower end surface of the positioning ring.

[0018] As a further description of the above technical solution:

[0019] A control motor located on one side of the light cylinder is fixedly provided on the top of the imaging box, and an output shaft of the control motor is fixedly connected to an eccentric sealing cover which is sealed with the top of the sealing docking sleeve.

[0020] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0021] 1. In the present invention, a circulating cleaning portion is provided on the inner side of the table, and an annular cleaning box is provided on the circulating cleaning portion. The annular cleaning box is provided with a carrier that can enter and exit the interior, and an imaging mirror for imaging refraction is installed on the carrier. After the imaging mirror enters the annular cleaning box, it can be washed, dried and wiped clean. After cleaning, the cleaned imaging mirror can be driven to be located above the light tube on the imaging box by controlling the sliding of the carrier, and then the image light emitted by the light tube is clearly refracted. This arrangement makes the present podium more convenient to clean the imaging mirror, and greatly improves the clarity of aerial imaging.

[0022] 2. In the present invention, the annular cleaning box is rotatable, and several carriers are arranged around the annular cleaning box. When a single carrier is controlled to move, the imaging mirror thereon can be controlled to enter and exit the annular cleaning box. Therefore, when the imaging mirror in use has unclear refraction due to dust adhesion, the annular cleaning box can be controlled to rotate. Combined with the movement function of the carrier, the cleaned imaging mirror can be quickly switched to the refraction position. This setting will not affect the normal use of the podium.

[0023] 3. In the present invention, a closed storage box is provided on the circulating cleaning section. The closed storage box serves to connect the circulating cleaning section and the table, and has the function of sealing part of the imaging mirror after cleaning. Specifically, when the annular cleaning box cleans the imaging mirror with attached dirt, other unused and clean imaging mirrors can be stored in the closed storage box. This arrangement has the function of cleaning and storing at the same time, which not only improves the cleaning efficiency, but also avoids the hidden danger of accelerated wear or secondary contamination of the imaging mirror caused by repeated cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a structural diagram of a speaking platform with air imaging technology proposed by the present invention;

[0025] Figure 2 for Figure 1 Schematic diagram at the bottom;

[0026] Figure 3 This is a schematic diagram of the structure of the annular cleaning box and the closed storage box of the speech platform with air imaging technology proposed by the present invention after explosion and expansion;

[0027] Figure 4 for Figure 3 Schematic diagram at the bottom;

[0028] Figure 5 This is a schematic diagram of the interior structure of a ring-shaped clean box of a podium with air imaging technology proposed by the present invention;

[0029] Figure 6This is a schematic cross-sectional view of the annular cleaning box of a podium with air imaging technology proposed by the present invention;

[0030] Figure 7 for Figure 5 Schematic diagram of the structure after removing the annular cleaning box.

[0031] Legend:

[0032] 1. Table; 2. Imaging box; 21. Light tube; 22. Imaging mirror; 3. Circulation cleaning unit; 31. Annular cleaning box; 311. Access window 1; 32. Carrier; 321. Transmission shaft; 3211. Closing plate; 322. Positioning ring; 33. Cleaning mechanism; 331. Rotating ring; 332. Cleaning roller; 3321. Cleaning cloth; 333. Transmission assembly; 3331. Intermediate shaft; 33311. Intermediate bevel gear; 3332. Bevel gear ring; 3333. Transmission bevel gear; 34. Medium switching control valve group; 35. Closed storage box; 351. Access window 2; 352. Exhaust pipe; 353. Air filter assembly; 36. Circulation pipe group; 4. Sealing butt sleeve; 41. Rubber gasket; 7. Control motor; 71. Eccentric cover. DETAILED DESCRIPTION

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0034] Example 1

[0035] See also Figure 1-7 A speaking platform with air imaging technology includes a table 1 and an imaging box 2 located inside the table 1. A circulating cleaning part 3 is provided on the inner side of the table 1 near the top. The circulating cleaning part 3 has the function of cleaning the imaging mirror 22. A horizontal and rotatable annular cleaning box 31 is provided on the circulating cleaning part 3. The annular cleaning box 31 can wash, wipe and dry the imaging mirror 22 with water, and has a self-cleaning function.

[0036] Furthermore, the outer periphery of the annular cleaning box 31 is radially and slidably connected to a plurality of circumferentially evenly distributed carriers 32. In this embodiment, there are three carriers 32. The imaging box 2 is located below the rear side of the annular cleaning box 31 and includes a light cylinder 21 at the top and an independently disposed imaging mirror 22. The imaging mirror 22 is mounted on the carrier 32, that is, the imaging mirror 22 is separated from the imaging box 2. When the carrier 32 moves radially to its extreme position, the imaging mirror 22 is located inside or outside the annular cleaning box 31. In these two states, the connection between the annular cleaning box 31 and the carrier 32 is closed. This closed state forms a leak-proof clean chamber within the annular cleaning box 31. When the imaging mirror 22 is located outside the annular cleaning box 31 and above the light cylinder 21, the image light emitted by the display within the light cylinder 21 will illuminate the imaging mirror 22. After being refracted by the imaging mirror 22, an image is formed in the air above it, i.e., aerial imaging. The image light emitted by the display is provided by a computer built into the imaging box 2 or an external computer. When one imaging mirror 22 is located outside the annular cleaning box 31 , the imaging mirror 22 located inside the annular cleaning box 31 can be cleaned normally.

[0037] Specifically, the carrier 32 includes a transmission shaft 321 and a positioning ring 322 fixedly set on the transmission shaft 321, the imaging mirror 22 is fixedly sleeved in the positioning ring 322, and the outer peripheral wall of the annular cleaning box 31 is provided with an inlet and outlet window 311, the transmission shaft 321 passes through the inner peripheral wall of the annular cleaning box 31 and is fixedly sleeved with a sealing plate 3211 located on both sides of the positioning ring 322 and sealingly matched with the inlet and outlet window 311. When in use, a circle of sealing rubber gasket can be adhered to the outer periphery of the inlet and outlet window 311, and then the guide sleeve that is fixedly connected to the inner peripheral wall of the annular cleaning box 31 and axially sealed and slidably matched with the transmission shaft 321 is fixedly connected. When the transmission shaft 321 moves axially, it will drive the imaging mirror 22 to enter and exit the inner cavity of the annular cleaning box 31 through the inlet and outlet window 311. When in use, an electric push rod corresponding to each transmission shaft 321 can be fixedly installed on the upper end surface of the annular cleaning box 31, and the output shaft end of the electric push rod is fixedly connected to an arm rod fixedly connected to the free end of the transmission shaft 321, thereby enabling the transmission shaft 321 to move axially.

[0038] In the present technical solution, a cleaning mechanism 33 for cleaning the mirror surface of the imaging mirror 22 is provided in the annular cleaning box 31. The bottom of the annular cleaning box 31 is connected to a medium switching control valve group 34 through a circulation pipe group 36. The medium switching control valve group 34 is a multi-position electromagnetic reversing valve, which transports and outputs the cleaning medium to the annular cleaning box 31 through the circulation pipe group 36, specifically cleaning liquid (such as water) and hot air. The circulation pipe group 36 includes an input pipe and an output pipe connected to the inner cavity of the annular cleaning box 31. One valve position on the medium switching control valve group 34 is connected to the water pump and the sewage tank through a pipeline, and the other valve position is connected to the hot air supply system and the exhaust pipe through a pipeline. Therefore, water flushing and hot air drying can be achieved by controlling the medium switching control valve group 34.

[0039] Specifically, the cleaning mechanism 33 includes a rotating ring 331, a cleaning roller 332 and a transmission assembly 333. There are two rotating rings 331 and they are arranged near the upper and lower sides of the annular cleaning box 31. One end of the cleaning roller 332 is rotatably connected to the outer peripheral wall of the rotating ring 331 and a cleaning cloth 3321 is fixedly sleeved thereon. When the rotating ring 331 rotates, it can drive the cleaning roller 332 to move circumferentially. When the cleaning roller 332 rotates, the cleaning cloth 3321 can wipe the upper and lower mirror surfaces of the imaging mirror 22 it passes through. The transmission assembly 333 is provided with an intermediate shaft 3331 that is sealed and passes through the annular cleaning box 31 and is rotatable. When the intermediate shaft 3331 rotates, the rotating ring 331 and the cleaning roller 332 both rotate. That is to say, by controlling the rotation of the intermediate shaft 3331, the cleaning roller 332 can rotate and revolve simultaneously, thereby cleaning the imaging mirror 22 it passes through.

[0040] Furthermore, the transmission assembly 333 includes a bevel gear ring 3332 and a transmission bevel gear 3333. The bevel gear rings 3332 are fixedly connected to the top and bottom of the annular cleaning box 31. The transmission bevel gear 3333 is fixedly mounted on the cleaning roller 332 and meshes with the adjacent bevel gear ring 3332. Therefore, when the rotating ring 331 rotates, the cleaning roller 332 rotates. One end of the intermediate shaft 3331 is fixedly connected to an intermediate bevel gear 33311 located on opposite sides of the two rotating rings 331 and meshes with each other. When the intermediate shaft 3331 rotates, it drives the two rotating rings 331 to rotate in different directions. In use, a transmission bevel gear ring can be fixedly mounted near the bottom of the annular cleaning box 31, and the other end of the intermediate shaft 3331 is fixedly connected to a transition bevel gear meshing with the transmission bevel gear ring. Therefore, by controlling the rotation of the transmission bevel gear ring, the intermediate shaft 3331 can be driven to rotate. This arrangement facilitates the installation of a common motor gear drive mechanism for driving the transmission bevel gear ring on the outside of the annular cleaning box 31.

[0041] In this embodiment, an enclosed storage box 35, which is fixedly connected to the table 1, is mounted on the exterior of the annular cleaning box 31. The enclosed storage box 35 is fixedly connected to the interior of the table 1. Specifically, a positioning window is provided on the top surface of the table 1, and the enclosed storage box 35 is fixedly mounted within this positioning window. The enclosed storage box 35 is rotatably connected to the annular cleaning box 31 and functions to seal and store a portion of the imaging mirror 22. Specifically, a crossbeam is fixedly mounted below the enclosed storage box 35, on which a positioning collar is fixedly mounted. A transmission sleeve, which is mounted within the positioning collar, is then fixedly mounted on the bottom of the annular cleaning box 31. An external gear ring is fixedly mounted on the transmission sleeve. During use, a drive motor can be mounted on the crossbeam, and the output shaft of the drive motor is fixedly connected to a driving gear that meshes with the external gear ring, thereby controlling the rotation of the annular cleaning box 31 relative to the enclosed storage box 35. When located within the enclosed storage box 35, a portion of the imaging mirror 22 is isolated and dustproof. Furthermore, the storage of the portion of the imaging mirror 22 does not affect the cleaning process of the imaging mirror 22 within the annular cleaning box 31.

[0042] Specifically, the closed storage box 35 is C-shaped with a notch facing the rear. This notch is opposite to the imaging mirror 22 docked above the light tube 21. The inner wall of the closed storage box 35 is provided with an inlet and outlet window 2 351 that is sealed with the sealing plate 3211. The inlet and outlet window 2 351 and the inlet and outlet window 1 311 have the same size specifications. When one carrier 32 on the annular cleaning box 31 is located above the light tube 21, the other two carriers 32 will be opposite to the two inlet and outlet windows 2 351 on the closed storage box 35. At this time, controlling the movement of the carrier 32 relative to the inlet and outlet window 2 351 can drive the imaging mirror thereon. 22 enters and exits the closed storage box 35, and due to the function of the sealing plate 3211, the closed storage box 35 can seal and store the imaging mirror 22. An exhaust pipe 352 is provided in the middle of the bottom of the closed storage box 35. When in use, the exhaust pipe 352 is connected to the exhaust pump through a pipeline. An air filter component 353 is provided at the open end of the closed storage box 35. The air filter component 353 adopts a common built-in dustproof net and filter cotton filter. Its function is to prevent air containing dust from entering the closed storage box 35. When the exhaust pipe 352 exhausts air, it will purify the air in the closed storage box 35, so that the imaging mirror 22 therein is in a clean storage state.

[0043] In this embodiment, the outer sleeve of the light tube 21 is provided with a sealing docking sleeve 4 that is slidable up and down. The top of the sealing docking sleeve 4 is bonded with a circle of rubber gasket 41 that seals with the lower end surface of the positioning ring 322. When the sealing docking sleeve 4 moves upward and then abuts against the bottom of the positioning ring 322, the light tube 21 is in a sealed docking state with the imaging mirror 22 to prevent dust from entering the light tube 21. When in use, an electric lifting rod can be fixedly installed on the top of the imaging box 2, and the output shaft of the electric lifting rod is fixedly connected to the outer wall of the sealing docking sleeve 4 through a connecting rod.

[0044] A control motor 7 located on one side of the light cylinder 21 is fixedly provided on the top of the imaging box 2. The output shaft of the control motor 7 is fixedly connected to an eccentric sealing cover 71 that seals with the top of the sealing docking sleeve 4. The control motor 7 provides driving force for the rotation of the eccentric sealing cover 71. The eccentric sealing cover 71 is located above the sealing docking sleeve 4. The sealing docking sleeve 4 is then controlled to move upward until it contacts the eccentric sealing cover 71. At this time, the light cylinder 21 is in a blocked and dustproof state. This arrangement ensures that when the imaging mirror 22 enters the annular cleaning box 31, both the imaging mirror 22 and the light cylinder 21 are in a dustproof state.

[0045] Among them, the principle of aerial imaging of the imaging box 1 in this technical solution is the existing technology, and this application will not go into details. Specifically, you can refer to the principle and structure of aerial imaging in the aerial imaging teleprompter proposed in the utility model with publication number CN209499037U. The imaging mirror 22 in this technical solution has the same structure as the aerial imaging element in the existing technology, so that the content of the aerial imaging speech is located in front of the speaker, and the content of the speech can only be seen by the speaker, and the audience cannot see it.

[0046] Working principle: When in use, when dirt accumulates on the imaging mirror 22 located above the light cylinder 21 and affects the clarity of the refracted image, the sealing docking sleeve 4 is controlled to descend, and then the transmission shaft 321 corresponding to the imaging mirror 22 is controlled to slide axially, and the imaging mirror 22 is transferred to the annular cleaning box 31. Then the annular cleaning box 31 is controlled to rotate until the sealed and cleaned imaging mirror 22 moves to a position close to the light cylinder 21, and then the carrier 32 corresponding to the clean imaging mirror 22 is controlled to move outward, so that the clean imaging mirror 22 and the light cylinder 21 dock. , and then continue to use it. At this time, you can operate the medium switching control valve group 34 and cooperate with the external liquid supply device to transport and output the cleaning liquid into the annular cleaning box 31. During cleaning, you can control the intermediate shaft 3331 to rotate so that the cleaning cloth 3321 wipes the imaging mirror 22. After rinsing, control the medium switching control valve group 34 to switch the hot air in and out of the annular cleaning box 31. At this time, the cleaning cloth 3321 and the inner cavity of the annular cleaning box 31 will gradually be dried. During the drying process, control the cleaning cloth 3321 to wipe the imaging mirror 22, thereby thoroughly cleaning the imaging mirror 22.

[0047] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A speaking platform with air imaging technology, comprising a table (1) and an imaging box (2) located inside the table (1), characterized in that: A circulating cleaning portion (3) near the top is provided on the inner side of the table (1), and a horizontal and rotatable annular cleaning box (31) is provided on the circulating cleaning portion (3). The outer periphery of the annular cleaning box (31) is radially slidably connected to a plurality of carriers (32) evenly distributed in the circumferential direction. The imaging box (2) is located below the rear side of the annular cleaning box (31) and includes a light cylinder (21) located at the top and an independently provided imaging mirror (22). The imaging mirror (22) is provided on the carrier (32). When the carrier (32) moves radially to an extreme state, the imaging mirror (22) is located at the annular cleaning box ( The annular cleaning box (31) has two states: inside and outside. In the two states, the connection between the annular cleaning box (31) and the carrier (32) is in a closed state. A cleaning mechanism (33) for cleaning the mirror surface of the imaging mirror (22) is provided in the annular cleaning box (31). The bottom of the annular cleaning box (31) is connected to a medium switching control valve group (34) through a circulation pipe group (36). The outer sleeve of the annular cleaning box (31) is provided with a closed storage box (35) fixedly connected to the table (1). The closed storage box (35) and the annular cleaning box (31) are rotatably connected and have the function of sealing and storing part of the imaging mirror (22).

2. The speaking platform with air imaging technology according to claim 1, characterized in that: The carrier (32) includes a transmission shaft (321) and a positioning ring (322) fixedly arranged on the transmission shaft (321); the imaging mirror (22) is fixedly sleeved in the positioning ring (322); an access window (311) is provided on the outer peripheral wall of the annular cleaning box (31); the transmission shaft (321) passes through the inner peripheral wall of the annular cleaning box (31) and is fixedly sleeved with sealing plates (3211) located on both sides of the positioning ring (322) and sealingly matched with the access window (311).

3. The speaking platform with air imaging technology according to claim 2, characterized in that: The closed storage box (35) is C-shaped with a notch facing rearward. The inner wall of the closed storage box (35) is provided with an inlet and outlet window (351) that is sealed with the sealing plate (3211). An exhaust pipe (352) is provided in the middle of the bottom of the closed storage box (35), and an air filter assembly (353) is provided at the open end of the closed storage box (35).

4. The speaking platform with air imaging technology according to claim 1, characterized in that: The cleaning mechanism (33) comprises a rotating ring (331), a cleaning roller (332) and a transmission assembly (333). There are two rotating rings (331) and they are arranged near the upper and lower sides of the annular cleaning box (31). One end of the cleaning roller (332) is rotatably connected to the outer peripheral wall of the rotating ring (331) and a cleaning cloth (3321) is fixedly sleeved thereon. The transmission assembly (333) is provided with an intermediate shaft (3331) which is sealed and passes through the annular cleaning box (31) and is rotatably arranged. When the intermediate shaft (3331) rotates, the rotating ring (331) and the cleaning roller (332) both rotate.

5. The speaking platform with air imaging technology according to claim 4, characterized in that: The transmission assembly (333) comprises a bevel gear ring (3332) and a transmission bevel gear (3333). The top and bottom of the annular cleaning box (31) are fixedly connected to the bevel gear ring (3332). The cleaning roller (332) is fixedly sleeved with a transmission bevel gear (3333) that meshes with the adjacent bevel gear ring (3332). One end of the intermediate shaft (3331) is fixedly connected to an intermediate bevel gear (33311) that meshes with the two rotating rings (331) on opposite sides.

6. The speaking platform with air imaging technology according to claim 2, characterized in that: The outer sleeve of the light cylinder (21) is provided with a sealing butt sleeve (4) which is slidably arranged up and down. The top of the sealing butt sleeve (4) is bonded with a rubber gasket (41) which is sealed with the lower end surface of the positioning ring (322).

7. The speaking platform with air imaging technology according to claim 1, characterized in that: A control motor (7) located on one side of the light cylinder (21) is fixedly provided on the top of the imaging box (2), and an output shaft of the control motor (7) is fixedly connected to an eccentric sealing cover (71) that is sealed with the top of the sealing docking sleeve (4).

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