Signal switching device for front end of audio and video machine room

Abstract

The utility model discloses a signal switching device for the front end of an audio and video machine room, and belongs to the technical field of audio and video signal switching devices. A signal switching device used at the front end of an audio and video machine room comprises a switching machine body and further comprises a mounting groove, a signal processing module and a signal processing module, the piston device is mounted in the mounting groove, an air inlet pipe is arranged on the piston device, and a one-way valve is connected into the air inlet pipe; the grooves are formed in the bottom of the converter body, and mounting pipes are fixedly connected into the grooves; the movable column is connected into the mounting pipe in a sliding mode, a suction cup is connected to the end, away from the mounting pipe, of the movable column, and the suction cup communicates with the air inlet pipe; according to the utility model, through the arrangement of the piston device and the sucker, the signal adapter body can be effectively fixed without screws, thereby effectively reducing the damage to the ground or a desktop, and facilitating the use of an audio machine room.

Description

Technical Field

[0001] The utility model relates to the technical field of audio and video signal switching devices, in particular to a signal switching device used at the front end of an audio and video machine room. Background Art

[0002] A signal adapter is a type of signal adapter, which is an adapter device that leads electrical signals to a test panel. A signal adapter is generally designed as: an input connector, a box, and an output connector.

[0003] In the audio and video room, a signal switching device is particularly needed to uniformly transcode different signals and transmit them to the control console, so that users can control various audio and video.

[0004] Existing signal adapters are generally placed directly on the ground or on a table, and have poor stability. When plugging or unplugging the signal line, one needs to hold the signal adapter with one hand to stabilize it, and the other hand can easily unplug the signal line. This is cumbersome and not conducive to one-handed operation. Some signal adapters are fixed by screws, which will damage the ground or the table, and there are certain shortcomings.

[0005] Therefore, a signal switching device for the front end of an audio and video room is provided to solve the above-mentioned problems. Utility Model Content

[0006] The purpose of the utility model is to solve the problems raised in the above background technology, and to propose a signal switching device for the front end of an audio and video room.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A signal switching device for the front end of an audio and video room, comprising a converter body, and also comprising:

[0009] A mounting groove is provided on the converter body;

[0010] A piston device is installed in the installation groove, the piston device is provided with an air intake pipe, and a one-way valve is connected to the air intake pipe;

[0011] A plurality of groups of grooves are arranged at the bottom of the converter body, and mounting tubes are fixedly connected in the grooves;

[0012] A movable column is slidably connected in the mounting tube, and a suction cup is connected to one end of the movable column away from the mounting tube, and the suction cup is communicated with the air inlet pipe;

[0013] A spring component is connected in the mounting tube, and the other end of the spring component is connected to the moving column.

[0014] For ease of use, preferably, the piston device includes a piston cylinder, a piston rod, and a piston spring. The piston rod is slidably connected in the piston cylinder, one end of the piston rod passes through the piston cylinder, and a piston member is provided on one end of the piston rod located in the piston cylinder. The piston member is used to block the gas and divide the piston cylinder into two cavities. The air inlet pipe is connected to the cavity away from the through-end of the piston rod, and an air outlet is provided on the cavity away from the through-end of the piston rod.

[0015] In order to increase the adsorption force, preferably, a fluid infusion tube is connected to the cavity near the through end of the piston rod, a liquid storage chamber is provided on the converter body, ethanol is contained in the liquid storage chamber, the liquid storage chamber is communicated with the fluid infusion tube, and a one-way valve is connected to the fluid infusion tube.

[0016] In order to facilitate the flow of liquid, preferably, a liquid outlet pipe is connected to the cavity near the through end of the piston rod, the liquid outlet end of the liquid outlet pipe is communicated with the suction cup, and a one-way valve is connected to the liquid outlet end of the liquid outlet pipe.

[0017] In order to facilitate the limiting, preferably, a rotating plate is rotatably connected to the through end of the piston rod, and a placement groove for placing the rotating plate is provided on the mounting groove.

[0018] In order to facilitate fixing in some special situations, preferably, a mounting side plate is fixedly connected to the converter body.

[0019] Compared with the prior art, the utility model provides a signal switching device for the front end of an audio and video room, which has the following beneficial effects:

[0020] The utility model can effectively fix the signal adapter body by arranging the piston device and the suction cup without fixing it by screws, thereby effectively reducing damage to the ground or the desktop and facilitating the use of the audio room. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the structure of a signal switching device for the front end of an audio and video room proposed by the utility model. Figure 1 ;

[0022] Figure 2 This is a schematic diagram of the structure of a signal switching device for the front end of an audio and video room proposed by the utility model. Figure 2 ;

[0023] Figure 3 This is a schematic diagram of the structure of a signal switching device for the front end of an audio and video room proposed by the utility model. Figure 3 ;

[0024] Figure 4The utility model proposes a signal switching device for the front end of an audio and video room. Figure 3 Schematic diagram of the structure of part A;

[0025] Figure 5 The utility model is a schematic diagram of the structure inside a groove in a signal switching device used at the front end of an audio and video room.

[0026] In the figure: 1, converter body; 101, mounting slot; 102, groove; 103, liquid storage chamber; 1031, liquid replenishing tube; 104, placement slot; 105, mounting side plate; 201, piston cylinder; 202, piston rod; 203, piston spring; 204, rotating plate; 205, air inlet pipe; 206, air outlet; 207, liquid outlet pipe; 301, mounting tube; 302, spring member; 303, moving column; 304, suction cup. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0028] Embodiment 1:

[0029] Reference Figure 1-5 A signal switching device for the front end of an audio and video room includes a converter body 1, and also includes: a mounting groove 101, which is arranged on the converter body 1; a piston device, which is installed in the mounting groove 101, and an air inlet pipe 205 is arranged on the piston device, and a one-way valve is connected to the air inlet pipe 205; multiple groups of grooves 102, which are arranged at the bottom of the converter body 1, and a mounting pipe 301 is fixedly connected in the groove 102; a moving column 303, which is slidably connected in the mounting pipe 301, and a suction cup 304 is connected to the end of the moving column 303 away from the mounting pipe 301, and the suction cup 304 is communicated with the air inlet pipe 205; a spring member 302, which is connected in the mounting pipe 301, and the other end of the spring member 302 Connected to the moving column 303, the piston device includes a piston cylinder 201, a piston rod 202, and a piston spring 203. The piston rod 202 is slidably connected in the piston cylinder 201, and one end of the piston rod 202 passes through the piston cylinder 201. A piston member is provided on one end of the piston rod 202 located in the piston cylinder 201. The piston member is used to block the gas and divide the piston cylinder 201 into two cavities. The air inlet pipe 205 is connected to the cavity away from the through end of the piston rod 202, and the cavity away from the through end of the piston rod 202 is provided with an air outlet 206. A rotating plate 204 is rotatably connected to the through end of the piston rod 202, and a placement groove 104 for placing the rotating plate 204 is provided on the mounting groove 101.

[0030] When the device is in use, the device can be directly placed on the ground or on a table (the spring member 302 has a certain supporting capacity, so that the converter body 1 is slightly higher than the ground), which is suitable for objects with relatively smooth surfaces such as tiles and polymer boards. After adjusting the direction, the rotating plate 204 can be pulled to move the piston rod 202, and then the rotating plate 204 is rotated and inserted into the placement slot 104. The movement at this time will cause the piston cylinder 201 to be in a negative pressure state, and the gas in the suction cup 304 will be discharged through the air inlet pipe 205 and enter the piston cylinder 201. At this time, the suction cup 304 will be in a negative pressure state, and then it will be sucked flat to increase the adsorption capacity, so that the converter body 1 can be fixed more firmly on the ground or the table. At this time, the external audio and video wiring harness can be inserted into the converter body 1 and transferred to the console.

[0031] In this way, the converter body 1 can be quickly fixed on a desktop or the ground. When removing the wiring harness, it is only necessary to directly plug and unplug the line, which is suitable for one-handed operation and easy to use.

[0032] Embodiment 2:

[0033] Reference Figure 1-5 , a signal switching device for the front end of an audio and video room, which is basically the same as Example 1, and further: a liquid infusion tube 1031 is connected to the cavity near the through end of the piston rod 202, a liquid storage chamber 103 is provided on the converter body 1, and ethanol is filled in the liquid storage chamber 103. The liquid storage chamber 103 is communicated with the liquid infusion tube 1031, and a one-way valve is connected to the liquid infusion tube 1031, and a liquid outlet pipe 207 is connected to the cavity near the through end of the piston rod 202, and the liquid outlet end of the liquid outlet pipe 207 is communicated with the suction cup 304, and a one-way valve is connected to the liquid outlet end of the liquid outlet pipe 207.

[0034] When the piston rod 202 is moved, the cavity near the piston rod 202 is squeezed and compressed. At this time, the internal ethanol will enter the suction cup 304 through the liquid outlet pipe 207, and then the adsorption capacity of the suction cup 304 will be increased by the ethanol, further increasing the firmness.

[0035] For ease of use, the piston rod 202 can be manually moved several times before fixing to avoid the situation where there is no ethanol in the piston cylinder 201. Ethanol itself is volatile and may need to be replenished regularly. Water can be used as a replacement. Ethanol is used to avoid affecting the use of the switch body 1.

[0036] Embodiment 3:

[0037] Reference Figure 1-3 , a signal switching device for the front end of an audio and video room, which is basically the same as Example 1, and further: a mounting side plate 105 is fixedly connected to the converter body 1.

[0038] The side panels 105 are installed by conventional means. The holes on the side panels 105 are used to perform conventional fixation using screws. This is convenient for use and is suitable for special environments, such as temporary sites or locations without suitable installation.

[0039] The utility model can effectively fix the signal adapter body 1 by setting the piston device and the suction cup 304 without fixing it by screws, effectively reducing damage to the ground or the desktop, and facilitating the use of the audio room.

[0040] The above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes within the technical scope disclosed by the present invention according to the technical solution and inventive concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A signal switching device for the front end of an audio and video room, comprising a converter body (1), characterized in that: Also includes: A mounting groove (101) is arranged on the converter body (1); A piston device is installed in the installation groove (101), an air intake pipe (205) is provided on the piston device, and a one-way valve is connected to the air intake pipe (205); A plurality of groups of grooves (102) are arranged at the bottom of the converter body (1), and a mounting tube (301) is fixedly connected in the grooves (102); A movable column (303) is slidably connected in the mounting tube (301), and a suction cup (304) is connected to one end of the movable column (303) away from the mounting tube (301), and the suction cup (304) is in communication with the air inlet pipe (205); A spring member (302) is connected inside the mounting tube (301), and the other end of the spring member (302) is connected to a moving column (303).

2. A signal switching device for the front end of an audio and video room according to claim 1, characterized in that: The piston device comprises a piston cylinder (201), a piston rod (202), and a piston spring (203); the piston rod (202) is slidably connected in the piston cylinder (201); one end of the piston rod (202) passes through the piston cylinder (201); a piston member is provided on one end of the piston rod (202) located in the piston cylinder (201); the piston member is used to block gas and divide the piston cylinder (201) into two cavities; the air inlet pipe (205) is communicated with the cavity away from the through-end of the piston rod (202); and an air outlet (206) is provided on the cavity away from the through-end of the piston rod (202).

3. A signal switching device for the front end of an audio and video room according to claim 2, characterized in that: A liquid infusion tube (1031) is connected to the cavity near the through end of the piston rod (202), a liquid storage chamber (103) is provided on the converter body (1), ethanol is contained in the liquid storage chamber (103), the liquid storage chamber (103) is communicated with the liquid infusion tube (1031), and a one-way valve is connected to the liquid infusion tube (1031).

4. A signal switching device for the front end of an audio and video room according to claim 3, characterized in that: A liquid outlet pipe (207) is connected to the cavity near the through end of the piston rod (202), the liquid outlet end of the liquid outlet pipe (207) is in communication with the suction cup (304), and a one-way valve is connected to the liquid outlet end of the liquid outlet pipe (207).

5. The signal switching device for the front end of an audio and video room according to claim 2, characterized in that: A rotating plate (204) is rotatably connected to the through end of the piston rod (202), and a placement groove (104) for placing the rotating plate (204) is provided on the installation groove (101).

6. The signal switching device for the front end of an audio and video room according to claim 1, characterized in that: A mounting side plate (105) is fixedly connected to the converter body (1).

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