A dual-cut vga switch

Abstract

The present application relates to a kind of double cutting formula VGA switch, including: switch shell, the inside of the switch shell is equipped with processing module for video signal processing;It is arranged on the inner wall of the switch shell for being connected with external input device VGA interface;Socket is arranged on the VGA interface, and the connecting wire of being connected with the socket and being electrically connected with the processing module;It is located on the inner wall of the switch shell for being connected with external display device output interface, and the transmission wire of being electrically connected with the processing module is connected on the output interface;The bottom of the switch shell is provided with transmission cavity, and the inside of the transmission cavity is equipped with switching mechanism for switching the VGA interface.The double cutting formula VGA switch, by the setting of switching mechanism, can be used when processing module cannot realize signal switching, realize the purpose of double switching, when processing module appears exception, switching mechanism can be used to realize the switching of output signal, save time.

Description

Technical Field

[0001] This invention relates to the field of VGA switch technology, and particularly to a dual-switch VGA switch. Background Technology

[0002] A switcher is used to control input and output signals or data. A VGA switcher is a device that selects one of multiple VGA computer display input signals to output to an output device, thus achieving the purpose of selecting one signal from multiple signals for output.

[0003] With societal progress, existing VGA switchers have moved beyond mechanical switching methods, enabling faster and more remote switching. However, since switchers require continuous, long-term operation, remote signal switching is prone to errors. Once an error occurs, the output signal cannot be switched. In meetings or important occasions, switcher maintenance can waste a significant amount of time for those present. Summary of the Invention

[0004] To solve the above-mentioned technical problems, the present invention provides a dual-switch VGA switch, which has the advantages of a full dual-switch.

[0005] To achieve the above objectives, the technical solution of the present invention is as follows:

[0006] A dual-switch VGA switch includes:

[0007] A switcher housing, the interior of which is provided with a processing module for video signal processing;

[0008] A VGA interface for connecting to external input devices is provided on the inner wall of the switch housing;

[0009] A socket located on the VGA interface, and a connecting wire connected to the socket and electrically connected to the processing module;

[0010] An output interface for connecting to an external display device is located on the inner wall of the switch housing, and a transmission wire electrically connected to the processing module is connected to the output interface.

[0011] The bottom of the switch housing has a transmission cavity, and the inside of the transmission cavity is provided with a switching mechanism for switching the VGA interface;

[0012] The switching mechanism includes: a threaded screw rotatably connected to the inner wall of the transmission cavity, a screw sleeve threaded to the outer wall of the threaded screw, a connecting block fixed to the top of the threaded screw, a fixing plate mounted on the top of the connecting block, a transmission plate fixed to the fixing plate, a contact rod disposed on one side of the transmission plate and used for circuit transmission, a contact block disposed at the bottom of the socket and in contact with the contact rod, and a contact mechanism that is in contact with the transmission plate and electrically connected to the processing module.

[0013] To achieve the above technical solution, external input devices can be connected via the VGA interface, and then transmitted to the processing module through a socket and connecting cable. The processing module then performs video signal conversion. When the output interface is connected to an external display device, the converted video signal can be transmitted to the external display device through a transmission cable, thus realizing VGA conversion. When multiple VGA interfaces are connected to external input devices, the processing module can select the output signal, thereby transmitting the video signal of the specified VGA interface to the external display device through the output interface, realizing basic signal output.

[0014] By setting up a switching mechanism, it can be used when the processing module cannot switch signals. When the screw rotates, it drives the screw sleeve to move. When the screw sleeve moves, it drives the fixing plate to move through the connecting block. When the fixing plate moves, it drives the contact rod to move through the transmission plate. When the contact rod moves, it contacts the contact block under one of the sockets. When the transmission plate contacts the processing module, it can transmit the signal from the VGA interface to the processing module, thereby realizing the output of the video signal. When the contact rod moves to the bottom of the other socket, the video signal can be switched, thus achieving the purpose of dual switching. When the processing module malfunctions, the switching mechanism can be used to switch the output signal without manual maintenance, saving time.

[0015] As a preferred embodiment of the present invention, the contact mechanism includes: a connecting plate fixed to the inner wall of the transmission cavity, a slide rail disposed on one side of the connecting plate, a sliding member slidably connected to the slide rail, a reset spring disposed on one side of the sliding member and fixedly connected to the connecting plate, a guide post disposed at the top of the sliding member, a guide ball fixed on one side of the guide post, and a guide groove formed on the surface of the transmission plate and adapted to the guide ball.

[0016] To achieve the above technical solution, when the guide ball contacts the guide groove, the real-time transmission plate, guide post, guide ball and guide groove form a circuit, thereby realizing contact-type signal circuit transmission, and the contact state between the guide ball and the guide groove can be maintained by the elastic deformation of the reset spring.

[0017] As a preferred embodiment of the present invention, the surface of the guide post is provided with a connecting post, and the connecting post is provided with an interconnecting wire electrically connected to the processing module.

[0018] To achieve the above technical solution, since the processing module is electrically connected to the connecting post through interconnecting wires, the processing module can be electrically connected to the guide ball, thereby forming a conductive circuit with the transmission plate, guide post, guide ball, guide groove, connecting post and interconnecting wires to realize signal transmission.

[0019] As a preferred embodiment of the present invention, a motor housing is provided on one side of the bottom of the transmission cavity, and a servo motor with an output shaft fixedly connected to the threaded screw is provided inside the motor housing.

[0020] By implementing the above technical solution, the servo motor can drive the lead screw to work when it is working, and when the servo motor is driven by signal control, remote automatic switching can be achieved.

[0021] In a preferred embodiment of the present invention, an installation plate is fixedly connected to the inner wall of the transmission cavity, a slide rod is fixedly connected to the installation plate, and a sliding sleeve that is fixedly connected to the installation plate is slidably connected to the slide rod.

[0022] To achieve the above technical solution, the mounting plate can serve as a support. Since the sliding rod and the sliding sleeve are slidably connected, the sliding sleeve can not only support the fixed plate, but also maintain the stability of the fixed plate when it moves.

[0023] As a preferred embodiment of the present invention, a lifting column is fixedly connected to one side of the bottom of the switch housing, and both the lifting column and the bottom of the transmission cavity are provided with support legs.

[0024] To achieve the above technical solution, the bottom of the switch housing can be kept parallel by using the lifting column, thereby maintaining the stability of the switch housing, while the support legs can play a supporting role.

[0025] As a preferred embodiment of the present invention, the top of the switch housing is provided with a filtering mechanism, the filtering mechanism including: a filter box disposed on the top of the switch housing, a filter plate disposed inside the filter box, an air inlet hole opened on the top of the filter box, and an air outlet hole opened on the bottom of the filter box.

[0026] To achieve the above technical solution, the filtration mechanism can treat the air entering the switch housing for heat dissipation, preventing dust from entering the switch housing and thus avoiding a rapid increase in the switch housing temperature caused by a large amount of dust, and reducing the failure rate of the switch housing.

[0027] As a preferred embodiment of the present invention, the top of the switch housing is provided with a connection hole that communicates with the air outlet, and a hollow cylinder is fixedly connected to the inner wall of the switch housing below the connection hole. The inner wall of the hollow cylinder is provided with a fan for air extraction.

[0028] To achieve the above technical solution, the fan can generate negative pressure suction when it is working, so that the outside air enters the interior of the filter box through the air inlet, and then is filtered by the filter plate. The filtered air then enters the interior of the hollow cylinder through the air outlet and the connection hole, and finally contacts the processing module. Thus, the principle of air exchange is used to achieve heat dissipation of the processing module, making the switch housing less prone to failure during long-term operation.

[0029] As a preferred embodiment of the present invention, the bottom of the switch housing is provided with a plurality of ventilation holes for air circulation.

[0030] The above technical solution is achieved by using heat dissipation holes to allow hot air inside the switch housing to be expelled and form an air circulation with the incoming air, thereby achieving better heat dissipation efficiency.

[0031] In summary, the present invention has the following beneficial effects:

[0032] This invention provides a dual-switching VGA switcher. Through the switching mechanism, it can be used when the processing module cannot switch signals. When the lead screw rotates, it moves the lead screw sleeve, which in turn moves the fixing plate via the connecting block. The moving fixing plate then moves the contact rod via the transmission plate. When the contact rod moves, it contacts the block under one of the sockets. When the transmission plate contacts the processing module, the signal transmitted from the VGA interface is sent to the processing module, thus outputting a video signal. When the contact rod moves to the bottom of the other socket, the video signal is switched, achieving dual switching. When the processing module malfunctions, the switching mechanism can switch the output signal, eliminating the need for manual repair and saving time. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0034] Figure 1 This is a frontal cross-sectional view of the structure of the present invention.

[0035] Figure 2 This is a top sectional view of the transmission cavity structure of the present invention.

[0036] Figure 3 For the present invention Figure 1 A magnified schematic diagram of the structure at point A in the middle.

[0037] Figure 4This is a flowchart illustrating the structure of the connecting wire switching in this invention.

[0038] Figure 5 This is a flowchart illustrating the switching mechanism of the present invention.

[0039] The numbers and letters in the diagram represent the names of the corresponding components:

[0040] 1. Switch housing; 2. Processing module; 3. VGA interface; 4. Socket; 5. Connecting wire; 6. Output interface; 7. Transmission wire; 8. Transmission cavity; 9. Threaded screw; 10. Screw sleeve; 11. Connecting block; 12. Fixing plate; 13. Transmission plate; 14. Contact rod; 15. Contacted block; 16. Connecting plate; 17. Slide rail; 18. Sliding component; 19. Return spring; 20. Guide post; 21. Guide ball; 22. Guide groove; 23. Connecting post; 24. Interconnecting wire; 25. Motor housing; 26. Servo motor; 27. Mounting plate; 28. Slide rod; 29. ​​Sliding sleeve; 30. Lifting post; 31. Support leg; 32. Filter box; 33. Filter plate; 34. Air inlet; 35. Air outlet; 36. Connecting hole; 37. Hollow cylinder; 38. Fan. Detailed Implementation

[0041] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0042] Example

[0043] A dual-switch VGA switch, such as Figures 1 to 5The system includes: a switch housing 1, with a processing module 2 for video signal processing inside; a VGA interface 3 on the inner wall of the switch housing 1 for connecting to external input devices; a socket 4 on the VGA interface 3, and a connecting wire 5 connected to the socket 4 and electrically connected to the processing module 2; and an output interface 6 on the inner wall of the switch housing 1 for connecting to external display devices, with a transmission wire 7 connected to the processing module 2. External input devices can be connected through the VGA interface 3, and the signal is transmitted to the processing module 2 through the socket 4 and connecting wire 5. The processing module 2 then performs video signal conversion. When the output interface 6 is connected to an external display device, the converted video signal can be transmitted to the external display device through the transmission wire 7, thus achieving VGA conversion. When multiple VGA interfaces 3 are connected to external input devices, the processing module 2 can select the output signal, thereby transmitting the video signal of the specified VGA interface 3 to the external display device through the output interface 6, achieving basic signal output.

[0044] The bottom of the switch housing 1 is provided with a transmission cavity 8. Inside the transmission cavity 8 is a switching mechanism for switching the VGA interface 3. The switching mechanism includes: a threaded screw 9 rotatably connected to the inner wall of the transmission cavity 8, a screw sleeve 10 threaded to the outer wall of the threaded screw 9, a connecting block 11 fixed to the top of the threaded screw 9, a fixing plate 12 mounted on the top of the connecting block 11, a transmission plate 13 fixed on the fixing plate 12, a contact rod 14 located on one side of the transmission plate 13 and used for circuit transmission, a contact block 15 located at the bottom of the socket 4 and in contact with the contact rod 14, and a contact mechanism that is in contact with the transmission plate 13 and electrically connected to the processing module 2.

[0045] By setting up a switching mechanism, it can be used when the processing module 2 cannot switch signals. When the threaded screw 9 rotates, it will drive the screw sleeve 10 to move. When the screw sleeve 10 moves, it will drive the fixing plate 12 to move through the connecting block 11. When the fixing plate 12 moves, it will drive the contact rod 14 to move through the transmission plate 13. When the contact rod 14 moves, it will contact the contact block 15 under one of the sockets 4. When the transmission plate 13 contacts the processing module 2, it can transmit the signal transmitted by the VGA interface 3 to the processing module 2, thereby realizing the output of the video signal. When the contact rod 14 moves to the bottom of the other socket 4, the video signal can be switched, thereby achieving the purpose of dual switching. When the processing module 2 malfunctions, the switching mechanism can be used to switch the output signal, eliminating the need for manual maintenance and saving time.

[0046] The contact mechanism includes: a connecting plate 16 fixed to the inner wall of the transmission cavity 8, a slide rail 17 located on one side of the connecting plate 16, a sliding member 18 slidably connected to the slide rail 17, a return spring 19 located on one side of the sliding member 18 and fixedly connected to the connecting plate 16, a guide post 20 located at the top of the sliding member 18, a guide ball 21 fixed on one side of the guide post 20, and a guide groove 22 formed on the surface of the transmission plate 13 and adapted to the guide ball 21.

[0047] When the guide ball 21 contacts the guide groove 22, the real-time transmission plate 13, guide post 20, guide ball 21 and guide groove 22 form a circuit, thereby realizing contact-type signal circuit transmission, and the contact state between the guide ball 21 and the guide groove 22 can be maintained by the elastic deformation of the reset spring 19.

[0048] The surface of the guide post 20 is provided with a connecting post 23, and the connecting post 23 is provided with an interconnecting wire 24 that is electrically connected to the processing module 2. Since the processing module 2 is electrically connected to the connecting post 23 through the interconnecting wire 24, the processing module 2 can be electrically connected to the guide ball 21, thereby forming a conductive circuit with the transmission plate 13, the guide post 20, the guide ball 21, the guide groove 22, the connecting post 23 and the interconnecting wire 24 to realize the transmission of the signal circuit.

[0049] A motor housing 25 is provided on one side of the bottom of the transmission cavity 8. Inside the motor housing 25 is a servo motor 26 whose output shaft is fixedly connected to the threaded screw 9. When the servo motor 26 is working, it can drive the threaded screw 9 to work. When the servo motor 26 is driven by signal control, remote automatic switching can be realized.

[0050] A mounting plate 27 is fixedly connected to the inner wall of the transmission cavity 8. A sliding rod 28 is fixedly connected to the mounting plate 27. A sliding sleeve 29, which is fixedly connected to the fixed plate 12, is slidably connected to the sliding rod 28. The mounting plate 27 can play a supporting role. Since the sliding rod 28 and the sliding sleeve 29 are slidably connected, the sliding sleeve 29 can not only support the fixed plate 12, but also maintain the stability of the fixed plate 12 when it moves.

[0051] A lifting column 30 is fixedly connected to one side of the bottom of the switch housing 1. Both the lifting column 30 and the bottom of the transmission cavity 8 are provided with support legs 31. The lifting column 30 can keep the bottom of the switch housing 1 in a parallel state, thereby maintaining the stability of the switch housing 1, while the support legs 31 can play a supporting role.

[0052] The top of the switch housing 1 is provided with a filter mechanism, which includes: a filter box 32 located on the top of the switch housing 1, a filter plate 33 located inside the filter box 32, an air inlet 34 located on the top of the filter box 32, and an air outlet 35 located on the bottom of the filter box 32. The top of the switch housing 1 is provided with a connection hole 36 that communicates with the air outlet 35. A hollow cylinder 37 is fixedly connected to the inner wall of the switch housing 1 and located below the connection hole 36. The inner wall of the hollow cylinder 37 is provided with a fan 38 for air extraction.

[0053] The filtration mechanism can treat the air entering the switch housing 1 for heat dissipation, preventing dust from entering the switch housing 1 and thus avoiding a rapid increase in the temperature of the switch housing 1 due to a large amount of dust. It can also reduce the failure rate of the switch housing 1. When the fan 38 is working, it can generate negative pressure suction, which allows outside air to enter the interior of the filter box 32 through the air inlet 34. Then, it is filtered by the filter plate 33. The filtered air will enter the interior of the hollow cylinder 37 through the air outlet 35 and the connection hole 36, and finally contact the processing module 2. Thus, the processing module 2 is cooled by the principle of air exchange, making the switch housing 1 less prone to failure during long-term operation.

[0054] The bottom of the switch housing 1 is provided with several ventilation holes for air circulation. These ventilation holes allow hot air inside the switch housing 1 to be discharged and form an air circulation with the incoming air, thereby achieving better heat dissipation efficiency.

[0055] Working principle: When processing module 2 cannot switch signals, it uses an external signal to start servo motor 26. When servo motor 26 is working, it drives threaded screw 9 to rotate. When threaded screw 9 rotates, it drives screw sleeve 10 to move. When screw sleeve 10 moves, it drives fixed plate 12 to move through connecting block 11. When fixed plate 12 moves, it drives contact rod 14 to move through transmission plate 13. When contact rod 14 moves, it contacts contact block 15 under one of sockets 4. Since processing module 2 is electrically connected to connecting post 23 through interconnecting wire 24, Therefore, the processing module 2 can be electrically connected to the guide ball 21, so that the transmission plate 13, guide post 20, guide ball 21, guide groove 22, connecting post 23 and interconnecting wire 24 form a conductive circuit to realize the transmission of the signal circuit. That is, the signal transmitted by the VGA interface 3 can be transmitted to the processing module 2 to realize the output of the video signal. When the contact rod 14 moves to the bottom of the other socket 4, the video signal can be switched, thus achieving the purpose of dual switching. When the processing module 2 malfunctions, the switching mechanism can be used to switch the output signal without manual maintenance, saving time.

[0056] In summary, the present invention has the following beneficial effects:

[0057] This invention provides a dual-switching VGA switcher. Through the switching mechanism, it can be used when the processing module 2 cannot switch signals. When the threaded screw 9 rotates, it drives the screw sleeve 10 to move. When the screw sleeve 10 moves, it drives the fixing plate 12 to move via the connecting block 11. When the fixing plate 12 moves, it drives the contact rod 14 to move via the transmission plate 13. When the contact rod 14 moves, it contacts the contact block 15 under one of the sockets 4. When the transmission plate 13 contacts the processing module 2, it can transmit the signal from the VGA interface 3 to the processing module 2, thereby realizing the output of the video signal. When the contact rod 14 moves to the bottom of the other socket 4, the video signal can be switched, thus achieving the purpose of dual switching. When the processing module 2 malfunctions, the switching mechanism can be used to switch the output signal, eliminating the need for manual maintenance and saving time.

[0058] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A dual-switch VGA switch, characterized in that, include: A switcher housing, the interior of which is provided with a processing module for video signal processing; A VGA interface for connecting to external input devices is provided on the inner wall of the switch housing; A socket located on the VGA interface, and a connecting wire connected to the socket and electrically connected to the processing module; An output interface for connecting to an external display device is located on the inner wall of the switch housing, and a transmission wire electrically connected to the processing module is connected to the output interface. The bottom of the switch housing has a transmission cavity, and the inside of the transmission cavity is provided with a switching mechanism for switching the VGA interface; The switching mechanism includes: a threaded screw rotatably connected to the inner wall of the transmission cavity, a screw sleeve threaded to the outer wall of the threaded screw, a connecting block fixed to the top of the threaded screw, a fixing plate mounted on the top of the connecting block, a transmission plate fixed to the fixing plate, a contact rod disposed on one side of the transmission plate and used for circuit transmission, a contact block disposed at the bottom of the socket and in contact with the contact rod, and a contact mechanism that is in contact with the transmission plate and electrically connected to the processing module. The contact mechanism includes: a connecting plate fixed to the inner wall of the transmission cavity, a slide rail disposed on one side of the connecting plate, a sliding member slidably connected to the slide rail, a reset spring disposed on one side of the sliding member and fixedly connected to the connecting plate, a guide post disposed at the top of the sliding member, a guide ball fixed on one side of the guide post, and a guide groove formed on the surface of the transmission plate and adapted to the guide ball.

2. The dual-switch VGA switch according to claim 1, characterized in that, The surface of the guide post is provided with a connecting post, and the connecting post is provided with an interconnecting wire that is electrically connected to the processing module.

3. The dual-switch VGA switch according to claim 2, characterized in that, A motor housing is provided on one side of the bottom of the transmission cavity, and a servo motor with its output shaft fixedly connected to the threaded screw is provided inside the motor housing.

4. The dual-switch VGA switch according to claim 1, characterized in that, A mounting plate is fixedly connected to the inner wall of the transmission cavity, a sliding rod is fixedly connected to the mounting plate, and a sliding sleeve that is fixedly connected to the mounting plate is slidably connected to the sliding rod.

5. The dual-switch VGA switch according to claim 4, characterized in that, A lifting column is fixedly connected to one side of the bottom of the switch housing, and both the lifting column and the bottom of the transmission cavity are provided with support legs.

6. The dual-switch VGA switch according to claim 5, characterized in that, The top of the switch housing is provided with a filtration mechanism, which includes: a filter box located on the top of the switch housing, a filter plate located inside the filter box, an air inlet located on the top of the filter box, and an air outlet located on the bottom of the filter box.

7. The dual-switch VGA switch according to claim 6, characterized in that, The top of the switch housing has a connection hole that communicates with the air outlet. A hollow cylinder is fixedly connected to the inner wall of the switch housing below the connection hole. The inner wall of the hollow cylinder is provided with a fan for air extraction.

8. The dual-switch VGA switch according to claim 7, characterized in that, The bottom of the switch housing has several ventilation holes for air circulation.

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