CN1293527A - Telescopic microphone - Google Patents

Abstract

The invention discloses a telescopic microphone, which utilizes a telescopic main pipe formed by coaxially sleeving a plurality of metal pipes, wherein a telescopic transmission element is arranged in the telescopic main pipe, the telescopic transmission element is selected from an electric wire or an inner telescopic pipe, the structure of the inner telescopic pipe is like the telescopic main pipe, the outermost ring pipe of the telescopic main pipe is adhered to the inside of a hand-held pipe, the thin end of the telescopic main pipe is fixedly connected with a pickup device and a net head seat, and a signal received by the pickup device is transmitted by the telescopic main pipe and the telescopic transmission element.

Description

retractable microphone

The invention relates to a microphone, in particular to a microphone whose length can be stretched arbitrarily.

Microphones are used to pick up the speech or voice of speakers or singers, and then convert them into electrical signals that are amplified and broadcast by the amplifying device. According to the different ways of transmitting the signal to the amplifying device, they can be divided into wired microphones and wireless microphones. Hand-held, head-mounted or strap-on type, the interviewer holds a traditional microphone to interview popular figures. The disadvantage is that the length of the microphone is too short, so that a group of reporters often surround the interviewee; the traditional wired microphone must be carried by the teacher at the same time The loudspeaker and the microphone wire are connected to the end hole of the loudspeaker through a terminal. If you use a hand-held microphone, its disadvantage is that you must hold the microphone at all times during use. If you use a head-mounted or belt-mounted microphone, though It eliminates the pain of holding the microphone, but due to the existence of the microphone wire, it has the disadvantage of being difficult to store.

The object of the present invention is to provide a telescopic microphone, which is characterized by easy use, small volume and portability after being folded.

In order to solve the above-mentioned tasks, the solution of the present invention is to use a telescopic main pipe formed by coaxially socketing a plurality of sections of metal pipes, and a telescopic transmission element is also arranged inside the telescopic main pipe, and the telescopic transmission element is selected from electric wires or internally telescopic The structure of the inner telescopic tube is like the telescopic main tube, which is also made of a plurality of metal tubes coaxially socketed. The overall diameter of the inner telescopic tube is smaller than the telescopic main tube, so it can be placed inside it. The outermost ring tube of the telescopic main tube is glued to the hand tube. Inside, the thin end of the telescopic main pipe is fixedly connected to the sound pickup device and the mesh head seat, and the signal received by the sound pickup device is transmitted by the telescopic main pipe and the telescopic transmission element. Now provide the following two specific retractable microphone structures:

One of the telescopic microphone structures includes: a mesh head seat with an opening at the bottom; a sound pickup device, which is a sound pressure sensing device, with threads on the periphery, and an opening at the bottom with internal threads, and the pickup device is inserted into the The above-mentioned net head seat is screwed and fixed; one hand holds the tube, which is a hollow long cylindrical structure, with a slot for a switch, and the wire is passed through the tube and the wire extends out of the end of the hand-held tube; a telescopic main tube, The signal connected to the aforementioned sound pickup device is coaxially socketed together by a plurality of hollow metal tubes. The diameter of the hollow metal tube on the outer ring is larger, so that the telescopic main tube can be stretched or stretched. The periphery of the thin end of the main pipe is provided with threads; a telescopic signal transmission element is connected to the signal of the aforementioned sound pickup device, and is placed inside the aforementioned telescopic main pipe to expand and contract with the aforementioned telescopic main pipe; The thin end is inserted into the bottom opening of the aforementioned sound pickup device and screwed tightly, and the aforementioned sound pickup device is inserted into the bottom opening of the aforementioned mesh head seat and screwed tight. Through the above structure, the user can stretch the aforementioned hand-held tube to any length. The signal is connected to the amplifier box. The handle tube is also fixedly connected to the aforementioned loudspeaker box body; the loudspeaker box body is provided with a tape recorder device. Furthermore, the telescopic signal transmission element is an inner telescopic tube, which is coaxially socketed together by a plurality of hollow metal tubes. Long, the overall diameter of the inner telescopic pipe is much smaller than the aforementioned telescopic main pipe, and the pruning is inserted into the aforementioned telescopic main pipe, and is fixed on the front and rear ends of the aforementioned telescopic main pipe in an insulating manner. In addition, the telescopic signal transmission element is an electric wire, and the electric wire is spirally wound inside the telescopic main pipe. The electric wire is composed of two twisted wires, and the signals are all transmitted by the two twisted wires.

Another telescopic microphone structure includes: a mesh head seat with an opening at the bottom, and internal thread inside the opening; The net head seat is screwed and fixed; a circuit board is connected to the signal of the aforementioned sound pickup device with wires, and is provided with a conductive spring and wires connected to a DC power supply; a circuit base is cylindrical, with open internal threads at both ends, The above-mentioned circuit board is placed and sealed with a cover; a telescopic main pipe is coaxially socketed together by a plurality of hollow metal tubes, and the diameter of the hollow metal tube on the outer ring is larger, and the telescopic main pipe can be stretched Or elongated, the thin end of the telescopic main pipe is provided with threads on the periphery, and is connected to the signal of the aforementioned sound pickup device; a telescopic signal transmission element is arranged inside the aforementioned telescopic main pipe to expand and contract with the aforementioned telescopic main pipe, and is connected to the aforementioned sound pickup device signal; one hand holds the tube, is provided with a battery slot for accommodating the battery, and is provided with a slot hole for installing a switch, and the switch is connected to the battery slot through a wire, and the front end of the hand-holding tube is provided with an opening with an internal thread and is screwed with a sleeve , the sleeve is empty in the middle and accommodates the aforementioned telescopic main pipe, the aforementioned telescopic main pipe is then screwed to the aforementioned circuit base, and the aforementioned circuit base is then screwed to the aforementioned sound pickup device. switch, it can be stretched to any length to access other people, pick up their voice and transmit it wirelessly. In addition, the telescopic signal transmission element is an inner telescopic tube, which is coaxially socketed together by a plurality of hollow metal tubes. Elongated, the overall diameter of the inner telescopic tube is much smaller than the aforementioned telescopic main tube, and the pruning is inserted into the aforementioned telescopic main tube, and is fixed on the front and rear ends of the aforementioned telescopic main tube in an insulating manner. In addition, the telescopic signal transmission element is an electric wire, and the electric wire is spirally wound inside the telescopic main pipe. The electric wire is composed of two twisted wires, and the signals are all transmitted by the two twisted wires.

Compared with the prior art, the present invention has the following beneficial effects: when the telescopic microphone is fixedly arranged on the small loudspeaker box body, the telescopic main pipe acts as a support for the sound pickup device, and the user only needs to speak to the sound pickup device with his or her mouth. Hold the microphone all the time, omitting the need for microphone wire setting and the trouble of microphone wire storage; when implementing a hand-held microphone to interview the public and people, extend it to the longest, even if it is outside the crowd, it can be clearly obtained The voice of the interviewee; and when the retractable microphone is shortened to the shortest, it is easy to carry and use, so users are willing to buy it. In addition, if the structure of the present invention is implemented in a hand-held microphone, it becomes a sharp tool for access. If it is implemented in a portable loudspeaker, the telescopic main pipe is fixed on the loudspeaker box, and the telescopic main pipe acts as The bracket of the sound pickup device can avoid the pain of holding the microphone, and this structure can also be implemented in a small portable recorder.

The specific embodiment of the present invention will be described in detail below in conjunction with the accompanying drawings.

FIG. 1 is an exploded perspective view of the first embodiment of the present invention.

Fig. 2 is an exploded perspective view of the second embodiment of the present invention.

Fig. 3 is a schematic diagram of the appearance of the first or second embodiment of the present invention shrunk to the shortest.

Fig. 4 is a schematic view of the appearance of the first or second embodiment of the present invention shrunk to any length.

Fig. 5 is a schematic diagram of the appearance of the third embodiment of the present invention shrunk to any length.

Fig. 6 is a schematic diagram of the appearance of the third embodiment of the present invention shrunk to the shortest.

FIG. 7 is an exploded perspective view of a fourth embodiment of the present invention.

Fig. 8 is a schematic diagram of the appearance of the fourth embodiment of the present invention shrunk to the shortest.

Fig. 9 is a schematic diagram of the appearance of the fourth embodiment of the present invention shrunk to any length.

Please refer to FIG. 1 , which is a three-dimensional exploded schematic view of the first embodiment of the present invention. The telescopic main pipe 20 is formed by coaxially socketing a plurality of sections of metal pipes 30 (3 sections in the figure). The element 70 is an inner telescopic tube 71, whose structure and material are the same as the telescopic main tube 20, but the overall diameter of the inner telescopic tube 71 is smaller than that of the telescopic main tube 20, so it can be inserted into the telescopic main tube 20 as a whole, and the thick end of the inner telescopic tube 71 The periphery is glued inside the thin end of the telescopic main pipe 20 with a layer of insulating glue 301, the thinnest end of the inner telescopic pipe 71 is fixed inside the thickest port of the telescopic main pipe 20 with an insulating plug body 303, and the thinnest end of the telescopic main pipe 20 is provided with a second external thread 302, the pickup device 50 is provided with a first external thread 501 and a second internal thread 502, and the pickup device 50 generates a signal that is connected to the telescopic main pipe 20 and the inner telescopic tube 71 by the wire 503, and the two wiring pins of the switch 604 are respectively connected with an electric wire 606 Connected to the telescopic main pipe 20 and the inner telescopic tube 71, the handle tube 60 is provided with a slot 603 for placing the switch 604, the electric wire 602 is a two-strand twisted wire and is first knotted at the inner end of the handle tube 60 and then passed through the tail plug of the tube The body 601 and the electric wire 602 will transmit the pickup signal to the loudspeaker (not shown in the figure). The assembly steps of this embodiment are roughly as follows: pass the electric wire 602 through the tail end of the hand-held tube 60, and the pipe tail plug body 601 is fixed on the hand-held Inside the tail end of the pipe 60, the telescopic main pipe 20 is bonded inside the handle pipe 60 with viscose, and the sound pickup device 50 is combined with the telescopic main pipe 20 by using the second external thread 302 and the second internal thread 502 to tighten and screw together. The sound device 50 is inserted into the inside of the net head seat 40, and its combination method is to use the first external thread 501 and the first internal thread 401 to turn and screw together.

Please refer to Fig. 2, which is a three-dimensional exploded schematic view of the second embodiment of the present invention. In the first embodiment, the telescopic transmission element 70 installed inside the telescopic main pipe 20 is an electric wire 72 in the second embodiment. The electric wire 72 will not be knotted when it expands and contracts with the telescopic main pipe 20. Therefore, a plurality of insulating plugs 303 are used to fix the electric wire 72 to the lower end of each section of the metal pipe 30 of the telescopic main pipe 20. The electric wires 72 of each section are wound with Helix, the rest of the structure is the same as the first embodiment.

Please refer to FIG. 3 again, which is a schematic view showing the shortened appearance of the first or second embodiment of the present invention.

Please also refer to FIG. 4 , which is a schematic view showing the appearance of the first or second embodiment of the present invention shrunk to any length.

Now please refer to Fig. 5 and Fig. 6, which are two schematic diagrams of the appearance of the third embodiment of the present invention. The telescopic transmission element 70 is arranged inside the telescopic main pipe 20, which is the inner telescopic pipe 71, and then the thin end of the telescopic main pipe 20 is fixedly connected and picked up. Sound device 50 and network head seat 40, telescopic main pipe 20 are fixedly arranged in the loudspeaker box body 65, in the loudspeaker box body 65 device circuit unit (not shown) and loudspeaker loudspeaker 651, present embodiment A microphone port 654 is reserved for connecting a traditional head-mounted microphone, and a power switch 653 and a volume adjustment button 652 are also provided. If the loudspeaker box body 65 strives to be miniaturized and is designed to be rechargeable or dry battery powered, the retractable microphone can be stored as shown in Figure 6 and is easy to carry.

Please refer to FIG. 7 , which is a three-dimensional exploded schematic view of the fourth embodiment of the present invention. This embodiment implements a wireless microphone, so a battery slot 607 is set in the handle tube 60 to cover the slot cover 605. The battery slot 607 is , The negative pole is connected to the switch 604 with the wire 602, the circuit board 901 is placed in the circuit base 90, the cover 902 seals the circuit board 901, and a screw 903 passes through the first screw hole 904 and the second screw hole 905 is locked to the third screw hole 906, and the pick-up head signal is welded on the circuit board 901 with two wires 508, and the DC power required by the circuit board 901 is respectively connected to the conductive spring 907 by the telescopic main pipe 20 connecting wire 310 and the inner telescopic tube 71. Both ends of the circuit base 90 are provided with openings, and the inside of the openings are respectively provided with a first opening thread 909 and a second opening thread 910. The pickup device 50 is provided with two sections of external threads 505, 506. Connect the net head seat 40 (the thread is not shown in the figure), the assembly steps of this embodiment are roughly as follows: the front end of the handle pipe 60 is provided with an opening tool internal thread 608 so that the external thread 801 of the sleeve 80 is screwed, and the sleeve 80 is The middle is empty and the telescopic main pipe 20 is glued with an adhesive. The thin end of the telescopic main pipe 20 is provided with a main pipe external thread 308 and then screwed to the circuit base 90 , and the circuit base 90 is then screwed to the pickup device 50 . Please refer to FIG. 8 , which is a schematic view of the fourth embodiment of the present invention shrunk to the shortest appearance. Finally, please refer to FIG. 9 , which is a schematic view showing the appearance of the fourth embodiment of the present invention shrunk to any length.

The above is only one or two of many embodiments of the present invention. Others, such as the telescopic main pipe 20 of the second embodiment of FIG. Select the two-strand twisted wire for use, and the transmission of the signal is all transmitted by the two-strand twisted wire. Among Fig. 5, the existing technologies including recording devices and the like that are set in the loudspeaker box body 65 are all conceivable by those skilled in the art. In addition, the above-mentioned telescopic main pipe and internal telescopic can adopt the traditional radio antenna, and the antenna manufacturing technology is the prior art, so it will not be repeated here. Have the above-mentioned telescopic main pipe and the internal contraction main pipe to adopt metal pipes such as copper pipes again.

Claims (10)

1. A telescoping microphone is characterized in that comprising: a mesh head seat with an opening at the bottom; A sound pickup device is a sound pressure sensing device with threads on the periphery and an opening at the bottom with internal threads. The sound pickup device is inserted into the above-mentioned mesh head seat and screwed and fixed; The holding tube in one hand is a hollow long cylindrical structure with a slot hole for placing a switch, and a wire is passed through the tube and the wire extends out of the tail end of the holding tube; A telescopic main pipe, connected to the signal of the aforementioned sound pickup device, is coaxially socketed together by a plurality of hollow metal tubes, wherein the diameter of the hollow metal pipe on the outer ring is larger, and the telescopic main pipe can be stretched or elongated. Threads are provided on the periphery of the thin end of the telescopic main pipe; A retractable signal transmission element, connected to the signal of the aforementioned sound pickup device, placed inside the aforementioned telescopic main pipe and stretches together with the aforementioned telescopic main pipe; The aforementioned telescopic main pipe is engaged in the aforementioned handle pipe, the thin end of the aforementioned telescopic main pipe is inserted into the bottom opening of the aforementioned sound pickup device and screwed tightly, and the aforementioned sound pickup device is inserted into the bottom opening of the aforementioned mesh head seat and screwed tightly. 2. The retractable microphone according to claim 1, wherein the handle tube is also connected to the loudspeaker box. 3. The retractable microphone according to claim 2, wherein the loudspeaker box is provided with a recorder device. 4. The telescopic microphone according to claim 1, 2 or 3, wherein the telescopic signal transmission element is an inner telescopic tube, which is coaxially socketed together by a plurality of hollow metal tubes, and the outer The larger the diameter of the hollow metal tube of the ring, the telescopic main pipe can be stretched or elongated. The overall diameter of the inner telescopic pipe is much smaller than the aforementioned telescopic main pipe, and the pruning is inserted into the aforementioned telescopic main pipe, and is fixed on the front and rear ends of the aforementioned telescopic main pipe in an insulating manner. 5. The telescoping microphone according to claim 1, 2 or 3, wherein the telescoping signal transmission element is an electric wire, and the electric wire is spirally wound inside the telescopic main pipe. 6. The telescoping microphone as claimed in claim 5, wherein the electric wire is made of two twisted wires. 7. A telescoping microphone is characterized in that comprising: A mesh head seat, the bottom of which is provided with an opening, and the inside of the opening has internal threads; A sound pickup device is a sound pressure sensing device with two threads on the periphery, the sound pickup device is inserted into the above-mentioned mesh head seat and screwed and fixed; A circuit board, which is connected to the signal of the aforementioned sound pickup device with wires, and is provided with a conductive spring and wires connected to a DC power supply; A circuit base, which is cylindrical, with open internal threads at both ends, on which the aforementioned circuit board is placed and sealed with a cover; A telescopic main pipe, which is coaxially socketed together by a plurality of hollow metal pipes, the diameter of the hollow metal pipe on the outer ring is larger, and the telescopic main pipe can be stretched or stretched. Thread, and connect the signal of the aforementioned pickup device; A retractable signal transmission element, arranged inside the aforementioned telescopic main pipe and stretched together with the aforementioned telescopic main pipe, and connected to the signal of the aforementioned sound pickup device; One hand-held tube is provided with a battery slot for accommodating the battery, and a slot hole for installing a switch, and the switch is connected to the battery slot through a wire. The barrel is empty in the middle and contains glue to fix the aforementioned telescopic main pipe, the aforementioned telescopic main pipe is then screwed to the aforementioned circuit base, and the aforementioned circuit base is then screwed to the aforementioned sound pickup device. 8. The telescoping microphone according to claim 7, wherein the telescoping signal transmission element is an inner telescoping tube, which is coaxially socketed together by a plurality of hollow metal tubes, wherein the hollow metal tube on the outer ring The larger the diameter, the telescopic main pipe can be stretched or elongated. The overall diameter of the inner telescopic pipe is much smaller than the aforementioned telescopic main pipe, and the pruning is inserted into the aforementioned telescopic main pipe, and is fixed on the front and rear ends of the aforementioned telescopic main pipe in an insulating manner. 9. The telescoping microphone as claimed in claim 7, wherein the telescoping signal transmission element is a wire, and the wire is spirally wound inside the telescoping main pipe. 10. The telescoping microphone as claimed in claim 9, wherein the electric wire is made of two twisted wires.

Images