Long-distance pickup microphone with adjustable sound collection tube length

Abstract

The utility model discloses a long-distance sound pickup microphone with adjustable sound collecting tube length, comprising an inner sound collecting tube, an outer sound collecting tube and a first spring piece; by arranging first positioning grooves on the left and right sides of the front end of the inner sound collecting tube, the outer sound collecting tube can be telescopically sleeved on the outside of the inner sound collecting tube forward and backward, two first spring pieces are arranged between the tube wall of the inner sound collecting tube and the tube wall of the outer sound collecting tube, and the two first spring pieces are fixedly arranged on the left and right sides of the tail end of the outer sound collecting tube, the two first spring pieces are respectively arranged in the corresponding first positioning grooves and matched with the first positioning grooves, the long-distance sound pickup microphone with adjustable sound collecting tube length can flexibly adjust the length to meet the sound pickup requirements in different distance scenes, achieve the purpose of long-distance sound pickup, is more flexible to use, and is more convenient to carry; when storing after use, the inner sound collecting tube and the outer sound collecting tube can be folded together, so that the total length of the microphone is shortened, and storage and carrying are more convenient, which brings convenience to the user.

Description

Technical Field

[0001] The utility model relates to the field of sound collecting tube technology, in particular to a long-distance sound pickup microphone with adjustable sound collecting tube length. Background Art

[0002] With the continuous development of social economy and the continuous improvement of science and technology, more and more products are being manufactured and innovated. Microphone, scientifically known as microphone, is translated from the English word microphone (transmitter), also known as microphone, micro-phone. Microphone is an energy conversion device that converts sound signals into electrical signals. Microphones can be divided into dynamic microphones, condenser microphones, electret microphones and silicon micro-microphones, in addition to liquid microphones and laser microphones. The working principle of condenser microphones is to form a capacitor with two parallel metal planes as two poles. One electrode is made of an extremely thin vibrating film material, and the other electrode is made of a porous metal plate. The sound is transmitted through the air, causing the electrode made of the vibrating film material to move relative to the plate made of the porous metal plate. When the position moves, the capacitance between the diaphragm and the plate will change. The change in capacitance forms a weak current, which is transmitted to the loudspeaker, and then the fluctuating current is restored to sound in the opposite process.

[0003] In news interviews, sports broadcasts, large-scale stage performances, and simultaneous recording of film and television, microphones with long-pole structures that can pick up sound from a distance are generally selected. In order to achieve long-distance sound pickup, the microphone usually adopts a design of a sound head plus a sound collecting tube. The sound pickup distance is proportional to the length of the sound collecting tube. The longer the sound collecting tube is, the longer the corresponding sound pickup distance is, and the better the sound pickup effect is. The sound collecting tube is designed with a relatively long structure to complete long-distance sound pickup. The relatively long structure is the guarantee for achieving long-distance sound pickup. However, when the total length of the sound collecting tube is long, it is inconvenient to store and carry, which brings inconvenience to the user; and, since the length of the sound collecting tube in the traditional structure of the long-distance sound pickup microphone is fixed, when used in different distance scenes, products with different length structures need to be selected. In order to ensure the completion of the task, the usual practice is to prepare several microphones of different lengths at the same time for backup, and select the appropriate microphone in the corresponding scene. This requires the preparation of multiple microphones, which results in a large purchase quantity and high cost, making it more inconvenient to carry, not flexible to use, and unable to meet existing needs. Therefore, it is necessary to study a new technical solution to improve the above problems. Utility Model Content

[0004] In view of this, the utility model aims to solve the deficiencies in the prior art, and its main purpose is to provide a long-distance sound pickup microphone with an adjustable sound collecting tube length, which can effectively solve the problems in the prior art that the total length of the sound collecting tube is long, which is inconvenient to store and carry, and multiple microphones need to be prepared to cope with different scenarios, and the cost is high and it is inconvenient to carry and inflexible to use.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A long-distance sound pickup microphone with an adjustable sound collecting tube length comprises an inner sound collecting tube, an outer sound collecting tube and a first spring piece; the inner sound collecting tube is provided with a plurality of first microholes for sound pickup, which can realize the sound pickup function and also play the role of waterproofing, dustproofing and signal shielding; the front end left and right sides of the inner sound collecting tube are provided with first positioning grooves; the outer sound collecting tube is provided with a plurality of second microholes for sound pickup, which can realize the sound pickup function and also play the role of waterproofing, dustproofing and signal shielding; the outer sound collecting tube can be telescopically sleeved on the outside of the inner sound collecting tube forward and backward; there are two first spring pieces, which are arranged between the tube wall of the inner sound collecting tube and the tube wall of the outer sound collecting tube and the two first spring pieces are fixedly arranged on the left and right sides of the tail end of the outer sound collecting tube, and the two first spring pieces are respectively arranged in the corresponding first positioning grooves and matched with the first positioning grooves.

[0007] As a preferred solution, the inner sound collecting tube and the outer sound collecting tube are both cylindrical tubes with hollow interiors.

[0008] As a preferred solution, the first spring piece is a U-shaped structure, and the U-shaped spring piece can better cooperate with the positioning groove, and the structure is stable and easy to use.

[0009] As a preferred solution, there are multiple sound-collecting outer tubes, and the multiple sound-collecting outer tubes can be telescopically mounted on the outside of the previous sound-collecting outer tube in sequence. Second positioning grooves are arranged on the left and right sides of the front end of the sound-collecting outer tube, and multiple second spring clips are further arranged. Every two second spring clips are arranged between the tube walls of two adjacent sound-collecting outer tubes, and every two second spring clips are fixedly arranged on the left and right sides of the rear end of the sound-collecting outer tube. The multiple second spring clips are respectively arranged in the corresponding second positioning grooves and matched with the second positioning grooves.

[0010] As a preferred solution, the second spring piece is a U-shaped structure, and the U-shaped spring piece can better cooperate with the positioning groove, and the structure is stable and easy to use.

[0011] As a preferred solution, a tube body is further provided, and the sound collecting inner tube can be telescopically sleeved on the outer tube body, and a sound head is provided inside the tube body.

[0012] As a preferred solution, a preamplifier is arranged inside the tube body.

[0013] As a preferred solution, the plurality of first microholes are all circular.

[0014] As a preferred solution, the plurality of second microholes are all circular.

[0015] Compared with the prior art, the utility model has obvious advantages and beneficial effects. Specifically, it can be seen from the above technical solution that:

[0016] By arranging first positioning grooves on the left and right sides of the front end of the sound collecting inner tube, the sound collecting outer tube is telescopically mounted on the outside of the sound collecting inner tube, two first spring pieces are arranged between the tube wall of the inner sound collecting tube and the tube wall of the outer sound collecting tube, and the two first spring pieces are fixedly arranged on the left and right sides of the tail end of the outer sound collecting tube, the two first spring pieces are respectively arranged in the corresponding first positioning grooves and matched with the first positioning grooves. This long-distance sound pickup microphone structure with adjustable sound collecting tube length can flexibly respond to the sound pickup needs of different distance scenes, and does not need to prepare multiple microphones, greatly reducing costs, making operation and carrying more flexible and convenient; when storing after use, the inner sound collecting tube and the outer sound collecting tube can be folded together, so that the total length of the microphone is shortened, and storage and carrying are more convenient, which brings convenience to users and meets existing needs.

[0017] In order to more clearly illustrate the structural features and functions of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of a preferred embodiment of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the preferred embodiment of the utility model when it is stored;

[0020] Figure 3 yes Figure 1 Cross-sectional view at position A in the middle;

[0021] Figure 4 yes Figure 1 Cross-sectional view at position B in the middle.

[0022] Description of the accompanying drawings:

[0023] 10. Sound collecting inner tube 11. First micro hole

[0024] 12. First positioning groove 20, sound collecting outer tube

[0025] 21. Second micro hole 22. Second positioning groove

[0026] 30. First spring piece 40. Second spring piece

[0027] 50. Pipe body. DETAILED DESCRIPTION

[0028] Please refer to Figures 1 to 4 As shown, it shows the specific structure of a preferred embodiment of the present utility model, including a sound collecting inner tube 10, a sound collecting outer tube 20 and a first spring piece 30.

[0029] The sound collecting inner tube 10 is provided with a plurality of first micro-holes 11 for picking up sound, and the plurality of first micro-holes 11 can realize the sound picking function and also play the role of waterproofing, dustproofing and signal shielding; the left and right sides of the front end of the sound collecting inner tube 10 are provided with first positioning grooves 12; in the present embodiment, the sound collecting inner tube 10 is a cylindrical tube body with a hollow interior; a tube body 50 is further provided, and the sound collecting inner tube 10 can be telescopically sleeved on the outside of the tube body 50 forward and backward, and a sound head (not shown in the figure) is arranged inside the tube body 50; specifically, a preamplifier (not shown in the figure) is arranged inside the tube body 50; the plurality of first micro-holes 11 are all circular.

[0030] The sound collecting outer tube 20 is provided with a plurality of second micro holes 21 for picking up sound, and the plurality of second micro holes 21 can realize the sound picking function and also play the role of waterproofing, dustproofing and signal shielding; the sound collecting outer tube 20 can be telescopically sleeved on the outside of the sound collecting inner tube 10; in the present embodiment, the sound collecting outer tube 20 is a cylindrical tube body with a hollow interior; there are a plurality of sound collecting outer tubes 20, and the plurality of sound collecting outer tubes 20 can be telescopically sleeved on the outside of the previous sound collecting outer tube 20 in turn, and the front end left and right sides of the sound collecting outer tube 20 are provided with second positioning grooves 22, and a plurality of second spring pieces 40 are further provided. Every two second spring pieces 40 are arranged between the tube walls of two adjacent sound collecting outer tubes 20, and the second spring pieces 40 and the tube walls of the two adjacent sound collecting outer tubes 20 generate friction with each other and can be positioned. Every two second spring pieces 40 are fixedly arranged on the left and right sides of the tail end of the sound collecting outer tube 20, and multiple second spring pieces 40 are respectively arranged in the corresponding second positioning grooves 22 and adapted to the second positioning grooves 22; specifically, the second spring piece 40 is a U-shaped structure, and the U-shaped spring piece can better cooperate with the positioning groove, and the structure is stable and easy to use; the multiple second microholes 21 are all circular.

[0031] There are two first spring clips 30, and the two first spring clips 30 are arranged between the tube wall of the sound collecting inner tube 10 and the tube wall of the sound collecting outer tube 20. The first spring clips 30 and the tube wall of the sound collecting inner tube 10 and the tube wall of the sound collecting outer tube 20 generate friction with each other and can be positioned. The two first spring clips 30 are fixedly arranged on the left and right sides of the tail end of the sound collecting outer tube 20. The two first spring clips 30 are respectively arranged in the corresponding first positioning grooves 12 and are adapted to the first positioning grooves 12. In this embodiment, the first spring clip 30 is a U-shaped structure, and the U-shaped spring clip can better cooperate with the positioning groove, and the structure is stable and easy to use.

[0032] The production process and use process of this embodiment are described in detail as follows:

[0033] First, the sound collecting inner tube 10, the tube body 50, the multiple sound collecting outer tubes 20, the two first spring clips 30 and the multiple second spring clips 40 are formed; then, the sound collecting inner tube 10 is telescopically mounted on the outside of the tube body 50; then, the two first spring clips 30 are fixedly arranged on the left and right sides of the rear end of a sound collecting outer tube 20, and then the sound collecting outer tube 20 is mounted on the outside of the sound collecting inner tube 10, so that the two first spring clips 30 are arranged between the tube wall of the sound collecting inner tube 10 and the tube wall of the sound collecting outer tube 20; then, every two second spring clips 40 are fixedly arranged on the left and right sides of the rear end of the sound collecting outer tube 20, and the sound collecting outer tubes 20 are sequentially mounted on the outside of the previous sound collecting outer tube 20 among the multiple sound collecting outer tubes 20, so that every two second spring clips 40 are arranged between the tube walls of two adjacent sound collecting outer tubes 20.

[0034] When in use, according to different needs, the outer sound collecting tube 20 and the inner sound collecting tube 10 are pulled outward in opposite directions respectively, the outer sound collecting tube 20 moves relative to the inner sound collecting tube 10 and the total length of the sound collecting tube becomes longer, and the two first spring pieces 30 are respectively snapped into the corresponding first positioning grooves 12 and cooperate with the first positioning grooves 12 for positioning; if a longer sound collecting tube is required, multiple outer sound collecting tubes 20 can be pulled outward with force, at this time the total length of the sound collecting tube will become longer, and the second spring pieces 40 are snapped into the corresponding second positioning grooves 22 and cooperate with the second positioning grooves 22 for positioning.

[0035] When storing after use, the inner sound collecting tube 10 and the multiple outer sound collecting tubes 20 can be pushed toward the middle with force, the first spring piece 30 is away from the first positioning groove 12, and the second spring piece 40 is away from the second positioning groove 22. At this time, the total length of the sound collecting tube becomes shorter, which is convenient for storage and carrying.

[0036] The long-distance pickup microphone with adjustable sound collecting tube length can be used in various scenarios such as news interviews, sports live broadcasts, stage performances, outdoor live broadcasts, etc.

[0037] The design focus of this utility model is:

[0038] By arranging first positioning grooves on the left and right sides of the front end of the sound collecting inner tube, the sound collecting outer tube is telescopically mounted on the outside of the sound collecting inner tube, two first spring pieces are arranged between the tube wall of the inner sound collecting tube and the tube wall of the outer sound collecting tube, and the two first spring pieces are fixedly arranged on the left and right sides of the tail end of the outer sound collecting tube, the two first spring pieces are respectively arranged in the corresponding first positioning grooves and matched with the first positioning grooves. This long-distance sound pickup microphone structure with adjustable sound collecting tube length can flexibly respond to the sound pickup needs of different distance scenes, and does not need to prepare multiple microphones, greatly reducing costs, making operation and carrying more flexible and convenient; when storing after use, the inner sound collecting tube and the outer sound collecting tube can be folded together, so that the total length of the microphone is shortened, and storage and carrying are more convenient, which brings convenience to users and meets existing needs.

[0039] The above description is only a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any slight modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A long-distance sound pickup microphone with adjustable sound collecting tube length, characterized in that: It includes an inner sound-collecting tube, an outer sound-collecting tube and a first spring piece; the inner sound-collecting tube is provided with a plurality of first microholes for picking up sound, and the left and right sides of the front end of the inner sound-collecting tube are provided with first positioning grooves; the outer sound-collecting tube is provided with a plurality of second microholes for picking up sound, and the outer sound-collecting tube can be telescopically sleeved on the outside of the inner sound-collecting tube; there are two first spring pieces, and the two first spring pieces are arranged between the tube wall of the inner sound-collecting tube and the tube wall of the outer sound-collecting tube, and the two first spring pieces are fixedly arranged on the left and right sides of the tail end of the outer sound-collecting tube, and the two first spring pieces are respectively arranged in the corresponding first positioning grooves and matched with the first positioning grooves.

2. The long-distance sound pickup microphone with adjustable sound collecting tube length according to claim 1, characterized in that: The inner sound collecting tube and the outer sound collecting tube are both cylindrical tube bodies with hollow interiors.

3. The long-distance sound pickup microphone with adjustable sound collecting tube length according to claim 1, characterized in that: The first spring piece is a U-shaped structure.

4. The long-distance sound pickup microphone with adjustable sound collecting tube length according to claim 1, characterized in that: There are multiple sound-collecting outer tubes, and the multiple sound-collecting outer tubes can be telescopically mounted on the outside of the previous sound-collecting outer tube in sequence. Second positioning grooves are arranged on the left and right sides of the front end of the sound-collecting outer tube, and multiple second spring clips are further arranged. Every two second spring clips are arranged between the tube walls of two adjacent sound-collecting outer tubes, and every two second spring clips are fixedly arranged on the left and right sides of the rear end of the sound-collecting outer tube. The multiple second spring clips are respectively arranged in the corresponding second positioning grooves and matched with the second positioning grooves.

5. The long-distance sound pickup microphone with adjustable sound collecting tube length according to claim 4, characterized in that: The second elastic piece is a U-shaped structure.

6. The long-distance sound pickup microphone with adjustable sound collecting tube length according to claim 1, characterized in that: A tube body is further provided. The sound collecting inner tube can be telescopically sleeved on the outer tube body, and a sound head is arranged inside the tube body.

7. The long-distance sound pickup microphone with adjustable sound collecting tube length according to claim 6, characterized in that: A preamplifier is arranged inside the tube body.

8. The long-distance sound pickup microphone with adjustable sound collecting tube length according to claim 1, characterized in that: The plurality of first microholes are all circular.

9. The long-distance sound pickup microphone with adjustable sound collecting tube length according to claim 1, characterized in that: The plurality of second microholes are all circular.

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