Host device for video conference

Abstract

The invention discloses host equipment for a video conference, and particularly relates to the technical field of host conductive connection, and the host equipment comprises a host mainboard, a butt joint shell, a plurality of conductive terminals and a filling and repairing conductive connection mechanism; the filling and repairing conductive connection mechanism comprises a main terminal, a conductive plugging end, a butt joint terminal, a plurality of auxiliary rectangular holes, an auxiliary broken line hole, an auxiliary vertical hole, two main rectangular holes, a main broken line hole and a main vertical hole. According to the invention, through filling and repairing the conductive connection mechanism, large-area filling and repairing of the interior of the conductive terminal and the interior of the conductive plugging end are realized, conductive connection can be rapidly recovered, normal operation of a video conference can be rapidly recovered, and the fault recovery rate of conductive connection of host equipment is greatly improved; therefore, the problems that the fault recovery efficiency of conductive connection of the host equipment is low and the waiting maintenance time of conference personnel is long due to the fact that conductive repair is difficult to carry out on the conductive terminal of the host equipment quickly are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of host conductive connection, and more specifically, to a host device for video conferencing. Background Art

[0002] The host equipment of video conferencing is mainly used in unit meeting rooms, media studios, education and training institutions, and telemedicine conference scenarios. It has interactive writing, display, collaboration, remote high-definition video conferencing, high efficiency, multi-function, and all-round intelligent paperless conference machines. The host equipment of video conferencing needs to be conductively connected to the conference office equipment to achieve line connectivity requirements.

[0003] In the existing published technical documents, the Chinese patent publication number CN220605100U discloses a host device for audio conferencing, which can prevent the data line connector from being pulled off or loosened, has good use effect, and is conducive to ensuring the normal conduct of video conferencing. However, this technology has the following defects.

[0004] When the host device of the video conference is in use, it is necessary to connect the conductive terminals of the conference office equipment to the conductive terminals of the host device. However, due to the long-term wear and tear of the conductive terminals, there is a certain gap in the connection parts of the conductive terminals, which leads to poor contact. After the meeting starts, maintenance personnel are required to disassemble the equipment and replace the conductive terminals. This causes the conference personnel to wait for a long time and it is difficult to quickly repair the conductive terminals of the host device, resulting in low fault recovery efficiency of the conductive connection of the host device. Summary of the invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides the following technical solution: a host device for video conferencing, comprising a host motherboard, a docking shell and a plurality of conductive terminals, wherein the docking shell is movably plugged into the bottom end of the host motherboard, the plurality of conductive terminals are fixedly connected to the inner wall of the docking shell, the plurality of conductive terminals are fixedly connected to the host motherboard, and a filling and repairing conductive connection mechanism is provided at the bottom end of the conductive terminal; the filling and repairing conductive connection mechanism comprises a main terminal plugged into the bottom end of the conductive terminal, and conductive plug terminals are fixedly connected on both sides of the conductive terminal.

[0006] The inner wall of each of the conductive plug ends is clamped with a docking terminal, and a plurality of secondary rectangular holes are opened inside the conductive plug end, a secondary fold line hole is opened between two adjacent secondary rectangular holes, and secondary vertical holes are opened on both sides of the secondary fold line holes; two main rectangular holes are opened inside the conductive terminal, a main fold line hole is opened between two adjacent main rectangular holes, and main vertical holes are opened on both sides of the main fold line holes.

[0007] Preferably, the plurality of conductive terminals are arranged equidistantly from left to right, the conductive terminals and the main terminals are both made of copper, a conductive strip is installed at the bottom end of the main terminal, and the plurality of main terminals are fixedly connected to the conductive strip, a docking shell is fixedly installed on the outer wall of the conductive strip, a rubber pad is bonded to the upper surface of the docking shell near its edge line, and the rubber pad is slidably connected to the docking shell. A conductive plug is fixedly connected to the bottom end of the conductive strip, and the conductive plug is fixedly connected to the docking shell. A protective shell is installed on one side of the host motherboard, and a camera is fixedly connected to the top of the host motherboard; an outer frame is provided on the other side of the host motherboard, a touch screen is installed on one side of the outer frame, and a tempered film is installed on one side of the touch screen.

[0008] When the present technology is in use, the downward pressure column drives the sleeve pressure plate to move downward, and the sleeve pressure plate is pressed downward along the inner wall of the multiple conveying pipes. At the same time, the sleeve pressure plate drives the sealing sleeve to move downward, and the edge of the sealing sleeve is sealed and pressed downward with the edge of the inner wall of the conductive liquid holding box. At the same time, the sealing sleeve is sealed and pressed downward at the connection between the sealing sleeve and the conveying pipe, and the guide column guides downward along the inner wall of the conductive liquid holding box. The conductive gel liquid inside the conductive liquid holding box is compressed and enters the multiple conveying pipes, so that the soft film is squeezed and broken, and the conductive gel liquid enters the multiple slots inside the docking shell.

[0009] Preferably, a synchronous injection conductive component is fixedly installed on one side of the docking shell; the synchronous injection conductive component includes a conductive liquid containing box fixedly installed on one side of the docking shell, and the interior of the conductive liquid containing box is fixedly connected with multiple delivery pipes, a lower pressure column is provided between two of the delivery pipes, and the lower pressure column is slidably connected to the conductive liquid containing box, and the inner wall of the lower pressure column is threaded with a bolt.

[0010] The bolt is threadedly connected to the docking shell; the bottom end of the lower pressure column is fixedly connected to a sleeve pressure plate, the bottom end of the sleeve pressure plate is fixedly connected to a sealing sleeve gasket, the sleeve pressure plate and the sealing sleeve gasket are both slidably connected to the delivery pipe, a guide column is provided on one side of the lower pressure column, and the guide column is slidably connected to the conductive liquid holding box, and the guide column is fixedly connected to the sleeve pressure plate; the top of each delivery pipe is fixedly connected to a soft membrane. Multiple delivery pipes are arranged equidistantly from left to right, and the interiors of multiple delivery pipes are all set as smooth surfaces. The sealing sleeve gasket and the sleeve pressure plate are both slidably connected to the conductive liquid holding box, the sealing sleeve gasket is made of rubber material, the cross-sectional shape of the bottom end of the guide column is circular, the cross-sectional shape of the top end of the guide column is polygonal, and the outer wall of the guide column is a smooth surface. A threaded cover is installed on one side of the conductive liquid holding box, and the threaded cover is threadedly connected to the conductive liquid holding box.

[0011] When the present technology is used, the conductive gel liquid enters into the multiple main rectangular holes inside the conductive terminal, and at the same time, the conductive gel liquid enters into the main fold line hole, and the conductive gel liquid enters into the main vertical hole. The other conductive gel liquid is filled along the secondary rectangular holes inside the conductive plug end, and is filled and repaired along the secondary fold line holes, and can also be filled and conducted along the secondary vertical holes, so that the conductive plug end and the docking terminal are filled and conducted. The conductive strip and the main terminal are quickly restored to conductive connection, and the docking terminal and the conductive plug end are quickly restored to conductive connection.

[0012] Technical effects and advantages of the present invention: The present invention fills and repairs the conductive connection mechanism. The conductive gel liquid enters into the multiple main rectangular holes inside the conductive terminal, the conductive gel liquid enters into the main fold line hole, and the conductive gel liquid enters into the main vertical hole, so as to achieve filling and conductive repair of the connection part between the main terminal and the conductive terminal. The conductive gel liquid is filled along the secondary rectangular holes inside the conductive plug end, and is filled and repaired along the secondary fold line holes. It can also be filled and conductive along the secondary vertical holes, so that large-area filling and repair are achieved inside the conductive terminal and the conductive plug end, so that the conductive connection can be quickly restored, the normal operation of the video conference can be quickly restored, and the fault recovery rate of the conductive connection of the host device can be greatly improved.

[0013] 2. The present invention adopts synchronous injection of conductive components. When poor contact occurs between the main terminal and the conductive terminal, or poor contact occurs between the docking terminal and the main terminal, the bolt no longer contacts the docking shell, the lower pressure column drives the sleeve pressure plate to move downward, and the sealing sleeve gasket is squeezed downward along the outer walls of multiple conveying tubes. The conductive gel liquid inside the conductive liquid holding box is compressed and enters the multiple conveying tubes, so that the soft film is squeezed and broken, and the conductive gel liquid enters the multiple grooves inside the docking shell, quickly filling and repairing the inside of the conductive terminal and the conductive plug end over a large area, which can quickly restore the conductive connection and quickly restore the normal operation of the video conference. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the main structure of the host device for video conferencing of the present invention.

[0015] Figure 2 The figure is a schematic diagram of the split structure of the host device for video conferencing according to the present invention.

[0016] Figure 3 It is a schematic diagram of the partial structure of the connection between the conductive terminal and the docking shell of the present invention from a front view.

[0017] Figure 4 It is a schematic diagram of the local structure of the vertical section of the connection between the conductive terminal and the main terminal of the present invention.

[0018] Figure 5 For the present invention Figure 4 Enlarged structural diagram at A in the middle.

[0019] Figure 6 It is a schematic diagram of the local structure of the vertical section of the connection between the conductive strip and the docking housing of the present invention.

[0020] Figure 7 It is a schematic diagram of the partial structure of the connection between the docking housing and the conductive plug of the present invention when viewed from above.

[0021] Figure 8 It is a schematic diagram of the partial structure of the vertical section of the conductive liquid containing box of the present invention.

[0022] Fig. 9 It is a schematic diagram of the local structure of the vertical section of the connection between the sealing sleeve and the sleeve pressure plate of the present invention.

[0023] Fig.10 For the present invention Figure 4 Enlarged structural diagram at B in the middle.

[0024] The accompanying drawings are marked as follows: 1. host motherboard; 2. docking shell; 3. conductive terminal; 4. conductive plug terminal; 5. docking terminal; 6. secondary rectangular hole; 7. secondary fold line hole; 8. secondary vertical hole; 9. main rectangular hole; 10. main fold line hole; 11. main vertical hole; 12. main terminal; 13. conductive strip; 14. docking shell; 15. rubber pad; 16. conductive plug; 17. protective shell; 18. camera; 19. outer frame; 20. touch screen; 21. tempered film; 22. conductive liquid container; 23. delivery pipe; 24. lower pressure column; 25. bolt; 26. sleeve pressure plate; 27. sealing sleeve gasket; 28. guide column; 29. ​​soft film; 30. threaded cover. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0026] As attached Figure 1 - Attachment Fig.10 A host device for video conferencing is shown, and the host device for video conferencing is provided with a filling and repairing conductive connection mechanism and a synchronous injection conductive component. The settings of each mechanism and component can achieve large-area filling and repair of the inside of the conductive terminal 3 and the inside of the conductive plug-in terminal 4, can quickly restore the conductive connection, quickly restore the normal operation of the video conference, and greatly improve the fault recovery rate of the conductive connection of the host device. The specific structural settings of each mechanism and component are as follows.

[0027] In this technical solution, as shown in the attached Figure 1 - Attachment Figure 5 As shown, the docking shell 2 is movably plugged into the bottom end of the host motherboard 1, and multiple conductive terminals 3 are fixedly connected to the inner wall of the docking shell 2. Multiple conductive terminals 3 are fixedly connected to the host motherboard 1, and a filling and repairing conductive connection mechanism is provided at the bottom end of the conductive terminal 3; the filling and repairing conductive connection mechanism includes a main terminal 12 plugged into the bottom end of the conductive terminal 3, and conductive plug terminals 4 are fixedly connected to both sides of the conductive terminal 3. The inner wall of each conductive plug terminal 4 is clamped with a docking terminal 5, and multiple secondary rectangular holes 6 are opened inside the conductive plug terminal 4, and secondary fold line holes 7 are opened between two adjacent secondary rectangular holes 6, and secondary vertical holes 8 are opened on both sides of the secondary fold line holes 7.

[0028] Two main rectangular holes 9 are provided inside the conductive terminal 3, and a main folding line hole 10 is provided between two adjacent main rectangular holes 9, and main vertical holes 11 are provided on both sides of the main folding line hole 10. Multiple conductive terminals 3 are arranged equidistantly from left to right, and the conductive terminals 3 and the main terminals 12 are made of copper. A conductive strip 13 is installed at the bottom end of the main terminal 12, and multiple main terminals 12 are fixedly connected to the conductive strip 13. A docking shell 14 is fixedly installed on the outer wall of the conductive strip 13, and a rubber pad 15 is bonded to the upper surface of the docking shell 14 and near its edge line, and the rubber pad 15 is slidably connected to the docking shell 2.

[0029] In this technical solution, as shown in the attached Figure 1-7 As shown, the bottom end of the conductive strip 13 is fixedly connected with a conductive plug 16, and the conductive plug 16 is fixedly connected to the docking housing 14, so that the conductive plug 16 is fixedly docked on the conductive wire harness of the display device to achieve conductive connection.

[0030] A protective shell 17 is installed on one side of the host motherboard 1, and a camera 18 is fixedly connected to the top of the host motherboard 1; an outer frame 19 is provided on the other side of the host motherboard 1, and a touch screen 20 is installed on one side of the outer frame 19, and a tempered film 21 is installed on one side of the touch screen 20, so that the host motherboard 1 can be docked on the inner wall of the protective shell 17, and the camera 18 is installed at the top position of the host motherboard 1, the outer frame 19 is used to reinforce the periphery of the host motherboard 1, and the touch screen 20 is fixed to the inner wall of the outer frame 19, and the tempered film 21 is attached to the touch screen 20 to protect it, and the touch screen 20 can be operated by touch.

[0031] In this technical solution, as shown in the attached Figure 7 - Attachment Fig.10As shown, a synchronous injection conductive assembly is fixedly installed on one side of the docking shell 2; the synchronous injection conductive assembly includes a conductive liquid holding box 22 fixedly installed on one side of the docking shell 2, and a plurality of delivery pipes 23 are fixedly connected inside the conductive liquid holding box 22, a lower pressure column 24 is provided between two of the delivery pipes 23, and the lower pressure column 24 is slidably connected to the conductive liquid holding box 22, and the inner wall of the lower pressure column 24 is threadedly connected with a bolt 25, and the bolt 25 is threadedly connected to the docking shell 2. The bottom end of the lower pressure column 24 is fixedly connected with a sleeve pressure plate 26, and the bottom end of the sleeve pressure plate 26 is fixedly connected with a sealing sleeve gasket 27, and the sleeve pressure plate 26 and the sealing sleeve gasket 27 are both slidably connected to the delivery pipe 23.

[0032] A guide column 28 is provided on one side of the lower pressure column 24, and the guide column 28 is slidably connected to the conductive liquid holding box 22, and the guide column 28 is fixedly connected to the sleeve pressure plate 26; a soft film 29 is fixedly connected to the top of each delivery pipe 23. Multiple delivery pipes 23 are arranged equidistantly from left to right, and the interiors of multiple delivery pipes 23 are all set to smooth surfaces. The sealing sleeve gasket 27 and the sleeve pressure plate 26 are both slidably connected to the conductive liquid holding box 22, and the sealing sleeve gasket 27 is made of rubber material. The cross-sectional shape of the bottom end of the guide column 28 is circular, the cross-sectional shape of the top end of the guide column 28 is polygonal, and the outer wall of the guide column 28 is a smooth surface. A threaded cover 30 is installed on one side of the conductive liquid holding box 22, and the threaded cover 30 is threadedly connected to the conductive liquid holding box 22.

[0033] The method of using the host device for video conferencing of the present invention is as follows: Step 1: During assembly and installation, first turn the threaded cover 30 forward, and the threaded cover 30 and the conductive liquid container 22 are separated by thread, and then the conductive gel liquid is poured into the conductive liquid container 22 until the liquid level of the conductive gel liquid is at the lower surface of the sealing sleeve 27, and then the threaded cover 30 is reversed, and the threaded cover 30 and the conductive liquid container 22 are threadedly connected and locked. The host motherboard 1 is docked to the inner wall of the protective shell 17 and locked with bolts, and the camera 18 is installed at the top position of the host motherboard 1, and the docking shell 2 is docked at the bottom of the host motherboard 1, and multiple conductive terminals 3 are plugged and fixed with the bottom of the host motherboard 1. The outer frame 19 is used to reinforce the periphery of the host motherboard 1, and the touch screen 20 is fixed to the inner wall of the outer frame 19, and the tempered film 21 is attached to the touch screen 20 to protect it. After the host motherboard 1 is powered, the conductive plug 16 is fixedly docked to the conductive wiring harness of the display device.

[0034] Step 2. During the conductive connection of the video conference, the conference video is collected through the camera 18 on the host motherboard 1. At the same time, the host motherboard 1 is conductively connected through multiple conductive terminals 3. The conductive terminal 3 is conductively docked on the main terminal 12. At the same time, the conductive terminal 3 conducts two conductive plug terminals 4, and the conductive plug terminals 4 are conductively connected to the docking terminal 5. The docking terminal 5 and the main terminal 12 are conductively connected to the conductive strip 13, which is conductively connected to the conductive plug 16 through the conductive strip 13. The conductive plug 16 is conductively connected to the conductive wiring harness of the display device to achieve a conductive connection operation, so that the display device can display the status of the video conference and share it with the conference participants for viewing.

[0035] Step 3: When injecting the conductive material synchronously, if there is a poor contact between the main terminal 12 and the conductive terminal 3, or a poor contact between the docking terminal 5 and the main terminal 12, the display device has a fault problem. The bolt 25 is turned forward, and the thread between the bolt 25 and the lower pressure column 24 is separated, so that the bolt 25 no longer contacts the docking shell 2, thereby pressing the lower pressure column 24 downward, and the lower pressure column 24 drives the sleeve pressure plate 26 to move downward, and the sleeve pressure plate 26 is pressed downward along the inner wall of the multiple conveying pipes 23.

[0036] At the same time, the sleeve pressure plate 26 drives the sealing sleeve 27 to move downward, and the sealing sleeve 27 is pressed downward along the outer wall of the multiple delivery tubes 23, and the edge of the sealing sleeve 27 is sealed and pressed downward with the edge of the inner wall of the conductive liquid holding box 22. At the same time, the sealing sleeve 27 and the delivery tube 23 are sealed and pressed downward, and the sleeve pressure plate 26 will simultaneously drive the guide column 28 to move downward, and the guide column 28 is guided downward along the inner wall of the conductive liquid holding box 22. The conductive gel liquid inside the conductive liquid holding box 22 is compressed and enters the multiple delivery tubes 23, and high pressure is generated inside the delivery tubes 23, which can squeeze and break the soft film 29, so that the conductive gel liquid enters the multiple slots inside the docking shell 2.

[0037] Step 4: When the conductive connection fault is repaired, the conductive gel liquid enters into the multiple main rectangular holes 9 inside the conductive terminal 3, and at the same time, the conductive gel liquid enters into the main fold line hole 10, and the conductive gel liquid enters into the main vertical hole 11, so that the connection between the main terminal 12 and the conductive terminal 3 is filled and repaired, ensuring that the conductive terminal 3 and the main terminal 12 are fully conductively connected. Other conductive gel liquids are filled along the secondary rectangular holes 6 inside the conductive plug terminal 4, and are filled and repaired along the secondary fold line holes 7, and can also be filled and conductive along the secondary vertical holes 8, so that the conductive plug terminal 4 and the docking terminal 5 are filled and conductive. The rubber pad 15 is supported by the docking shell 14, and the rubber pad 15 seals the bottom edge of the docking shell 2. In this way, the conductive strip 13 and the main terminal 12 are quickly restored to conductive connection, and the docking terminal 5 and the conductive plug terminal 4 are quickly restored to conductive connection, and the main terminal 12 and the conductive terminal 3 are quickly restored to conductive connection, and the normal operation of the video conference is quickly restored.

[0038] The contents not described in detail in the specification belong to the prior art known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited, and conventional equipment can be used. In this technical solution, the electrical control components not mentioned are not shown in the figure because they belong to the prior art and will not be described here.

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A host device for video conferencing, comprising a host motherboard (1), a docking shell (2) and a plurality of conductive terminals (3), characterized in that: The docking shell (2) is movably plugged into the bottom end of the host motherboard (1), the plurality of conductive terminals (3) are fixedly connected to the inner wall of the docking shell (2), the plurality of conductive terminals (3) are fixedly connected to the host motherboard (1), and the bottom end of the conductive terminal (3) is provided with a filling and repairing conductive connection mechanism; The filling and repairing conductive connection mechanism comprises a main terminal (12) plugged into the bottom end of the conductive terminal (3), conductive plug ends (4) are fixedly connected to both sides of the conductive terminal (3), a docking terminal (5) is clamped on the inner wall of each conductive plug end (4), a plurality of secondary rectangular holes (6) are provided inside the conductive plug end (4), a secondary folding line hole (7) is provided between two adjacent secondary rectangular holes (6), and secondary vertical holes (8) are provided on both sides of the secondary folding line hole (7); Two main rectangular holes (9) are provided inside the conductive terminal (3), a main fold line hole (10) is provided between two adjacent main rectangular holes (9), and main vertical holes (11) are provided on both sides of the main fold line hole (10).

2. The host device for video conferencing according to claim 1, characterized in that: The plurality of conductive terminals (3) are arranged in sequence and at equal intervals from left to right, and the conductive terminals (3) and the main terminals (12) are both made of copper.

3. The host device for video conferencing according to claim 1, characterized in that: A conductive strip (13) is mounted at the bottom end of the main terminal (12), and a plurality of the main terminals (12) are fixedly connected to the conductive strip (13). A docking sleeve (14) is fixedly mounted on the outer wall of the conductive strip (13). A rubber pad (15) is bonded to the upper surface of the docking sleeve (14) near its edge line, and the rubber pad (15) is slidably connected to the docking sleeve (2).

4. The host device for video conferencing according to claim 3, characterized in that: A conductive plug (16) is fixedly connected to the bottom end of the conductive strip (13), and the conductive plug (16) is fixedly connected to the docking sleeve (14).

5. The host device for video conferencing according to claim 1, characterized in that: A protective shell (17) is installed on one side of the host motherboard (1), and a camera (18) is fixedly connected to the top of the host motherboard (1); An outer frame (19) is provided on the other side of the host motherboard (1), a touch screen (20) is installed on one side of the outer frame (19), and a tempered film (21) is installed on one side of the touch screen (20).

6. The host device for video conferencing according to claim 1, characterized in that: A synchronous injection conductive component is fixedly mounted on one side of the docking shell (2); The synchronous injection conductive component comprises a conductive liquid containing box (22) fixedly mounted on one side of the docking shell (2), the conductive liquid containing box (22) is internally fixedly connected with a plurality of delivery pipes (23), a lower pressure column (24) is provided between two of the delivery pipes (23), and the lower pressure column (24) is slidably connected to the conductive liquid containing box (22), the inner wall of the lower pressure column (24) is threadedly connected with a bolt (25), and the bolt (25) is threadedly connected to the docking shell (2); The bottom end of the lower pressure column (24) is fixedly connected to a sleeve pressure plate (26), and the bottom end of the sleeve pressure plate (26) is fixedly connected to a sealing sleeve gasket (27). The sleeve pressure plate (26) and the sealing sleeve gasket (27) are both slidably connected to the delivery pipe (23). A guide column (28) is provided on one side of the lower pressure column (24), and the guide column (28) is slidably connected to the conductive liquid container (22). The guide column (28) is fixedly connected to the sleeve pressure plate (26); The top end of each delivery tube (23) is fixedly connected to a soft membrane (29).

7. The host device for video conferencing according to claim 6, characterized in that: The plurality of conveying pipes (23) are arranged in sequence and at equal intervals from left to right, and the interiors of the plurality of conveying pipes (23) are all configured as smooth surfaces.

8. The host device for video conferencing according to claim 6, characterized in that: The sealing sleeve (27) and the sleeve pressure plate (26) are both slidably connected to the conductive liquid containing box (22), and the sealing sleeve (27) is made of rubber material.

9. The host device for video conferencing according to claim 6, characterized in that: The cross-sectional shape of the bottom end of the guide column (28) is circular, the cross-sectional shape of the top end surface of the guide column (28) is polygonal, and the outer wall of the guide column (28) is a smooth surface.

10. The host device for video conferencing according to claim 6, characterized in that: A threaded cover (30) is installed on one side of the conductive liquid containing box (22), and the threaded cover (30) is threadedly connected to the conductive liquid containing box (22).

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