CN111990764A - Automatic microphone extending and retracting device - Google Patents

Abstract

The invention discloses an automatic extending and retracting device of a microphone, which comprises an automatic microphone lifting mechanism arranged in a case, a microphone arranged on the automatic microphone lifting mechanism and capable of extending from an extending port of the microphone, and an automatic microphone flip opening and closing mechanism connected with a microphone flip cover. The invention can realize the function of automatically extending and retracting the microphone, is convenient to use and store, has strong practicability, does not occupy the position of a table top after being used, can keep the table top neat and beautiful, can protect the microphone, plays a role in dust prevention and water prevention and prolongs the service life of the microphone.

Description

Automatic microphone extending and retracting device

Technical Field

The invention relates to the field of electronic equipment, in particular to an automatic extending and retracting device for a microphone.

Background

With the continuous development and progress of electronic equipment and science and technology, the microphone is adopted for speaking, and the microphone is widely applied to places such as meeting rooms, education institutions, training institutions and the like. At present, the microphone is generally held by hand or placed on a table for a long time, and after the microphone is used, the microphone cannot be collected, so that dust can be accumulated on the microphone, the service life is shortened, the position of the table is occupied, and the tidiness and attractiveness of the table are influenced.

Disclosure of Invention

In view of the above disadvantages, an object of the present invention is to provide an automatic extending and retracting device for a microphone, which can automatically extend the microphone to the outside for use, automatically descend for storage after use, and has the advantages of high automation degree, convenient use, strong practicability, no occupation of a desktop position after use, capability of keeping the desktop neat and beautiful, capability of protecting the microphone, dustproof and waterproof effects, and prolonged service life.

The technical scheme adopted by the invention to achieve the aim is as follows:

an automatic extending and withdrawing device for a microphone comprises a case, a microphone extending port is arranged at the upper end of the case, and a microphone flip cover is arranged on the microphone extending port, and is characterized by also comprising an automatic microphone lifting mechanism arranged in the case, a microphone arranged on the automatic microphone lifting mechanism and capable of extending from the microphone extending port, and at least one automatic microphone flip cover opening and closing mechanism connected with the microphone flip cover, wherein the automatic microphone flip cover opening and closing mechanism comprises a fixed seat arranged at the lower part of the inner side of the case, a pull rod rotationally connected with the microphone flip cover, a positioning sliding part arranged on the fixed seat in a sliding way and connected with the pull rod, a pushing part connected to a microphone lifting support of the automatic microphone lifting mechanism and acting on the positioning sliding part, an upper pushing block arranged on the fixed seat in a sliding way and positioned below the positioning sliding part, And a first buffer spring connected between the push-up block and the inner side of the case.

As a further improvement of the present invention, a first longitudinal sliding hole for the sliding of the positioning sliding member is formed on the fixing base, and the first longitudinal sliding hole mainly comprises a vertical sliding hole and an oblique sliding hole formed by bending the upper part of the vertical sliding hole towards the inner side of the chassis.

As a further improvement of the invention, an opening is formed on the pushing member, an upper hook body is formed at the upper part of the opening, an upper guide inclined plane is formed at the inner side of the upper hook body, and the upper guide inclined plane inclines towards the inner side of the case from top to bottom; a lower hook body is formed at the lower part of the opening, a lower guide inclined plane is formed at the inner side edge of the lower hook body, and the lower guide inclined plane inclines towards the inner side of the case from top to bottom.

As a further improvement of the invention, a limit guide inclined plane is formed on the upper end surface of the push-up block, and the limit guide inclined plane inclines towards the inner side of the case from top to bottom.

As a further improvement of the present invention, a second longitudinal sliding hole is formed on the push-up block, and at least one positioning member is disposed on the fixing seat and is embedded in the second longitudinal sliding hole.

As a further improvement of the invention, a connecting piece is arranged on the push-up block, and the first buffer spring is connected between the connecting piece and the fixed seat.

As a further improvement of the invention, a second buffer spring is connected between the inner wall of the case and the pull rod.

As a further improvement of the invention, the microphone flip cover is rotatably arranged on the inner wall of the case through a connecting block, and the upper end of the pull rod is rotatably connected with the connecting block.

As a further improvement of the present invention, the automatic microphone lifting mechanism comprises a microphone lifting rack vertically arranged in the case, a microphone lifting bracket slidably arranged in the case, a microphone lifting driving motor arranged in the case and connected to the microphone lifting bracket, and a microphone lifting transmission gear arranged on an output shaft of the microphone lifting driving motor and engaged with the microphone lifting rack, wherein the microphone is arranged on the microphone lifting bracket; the microphone lifting support is characterized in that at least one lifting guide sliding block is fixedly connected to each of two ends of the microphone lifting support, and a lifting guide sliding groove for the lifting guide sliding block to be embedded and to slide in a lifting mode is formed in the inner wall of the case.

As a further improvement of the invention, a microphone lifting and positioning mechanism is arranged in the case, and comprises a lifting slide plate arranged on the inner wall of the case, a microphone positioning frame arranged at the upper end of the lifting slide plate, and a return spring connected between the lower end of the lifting slide plate and the inner wall of the case, wherein a microphone through hole for a microphone to pass through is formed on the microphone positioning frame, and a pushing connecting block positioned right below the microphone lifting support is arranged at the lower end of the lifting slide plate; a rubber plug matched with the extension opening of the microphone is arranged on the microphone perforation of the microphone positioning frame.

The invention has the beneficial effects that:

(1) the microphone is integrated on the case, and is combined with the automatic opening and closing mechanism of the microphone flip through the automatic microphone lifting mechanism to control the automatic opening and closing of the microphone flip and the automatic lifting of the microphone, so that the microphone automatically rises to extend out of the case for use, and automatically falls to retract the case for storage after use. Therefore, the multifunctional microphone box has the microphone function, is convenient to use and high in practicability, and can be used for storing the microphone in the box without occupying the position of a desktop, keeping the desktop neat and attractive, realizing the functions of storing and protecting the microphone, playing a dustproof and waterproof role and prolonging the service life of the microphone.

(2) Through the special structural design of the automatic opening and closing mechanism of the microphone flip cover, the automatic opening and closing of the microphone flip cover can be realized, the microphone flip cover is reasonable in structural design and high in precision, the microphone flip cover is matched with the microphone to extend, use and withdraw, and the automation degree is high. Meanwhile, the hand-clamping prevention function is achieved.

(3) Through the microphone automatic lifting mechanism who drives microphone automatic rising by having special structural design, structural design is reasonable, and the precision is high, at whole lift in-process, moves stably, steadily, and the noise is little, long service life.

(4) Through addding microphone lift positioning mechanism, at the ascending in-process with descending of microphone, fix a position the microphone by microphone locating rack of microphone lift positioning mechanism, prevent that the indiscriminate swing phenomenon from appearing in the microphone for the microphone can be stable, steady rise and descend.

The above is an overview of the technical solutions of the present invention, and the present invention is further described below with reference to the accompanying drawings and the detailed description thereof.

Drawings

FIG. 1 is a schematic view of the entire internal structure of an automatic extending and retracting device of a microphone according to an embodiment;

FIG. 2 is a schematic view of the entire external structure of an automatic extending and retracting device of a microphone according to an embodiment;

fig. 3 is a schematic structural diagram of an automatic opening and closing mechanism of a microphone flip cover in a closed state according to an embodiment of the first embodiment;

FIG. 4 is a schematic front view of a combination of the fixing base, the push-up block and the positioning sliding member according to an embodiment of the present invention;

FIG. 5 is a schematic view of a back side structure of the first embodiment of the combination of the fixing base, the push-up block and the positioning sliding member;

FIG. 6 is a schematic structural diagram of a fixing base according to a first embodiment;

FIG. 7 is a schematic view of the structure of a pusher member according to one embodiment;

fig. 8 is a schematic structural diagram of an automatic opening and closing mechanism of a microphone flip cover in a half-open state according to an embodiment of the present invention;

fig. 9 is a schematic structural diagram of an automatic opening and closing mechanism of a microphone flip cover in an open state according to an embodiment of the first embodiment;

fig. 10 is a schematic structural view of an automatic microphone lifting mechanism according to a second embodiment.

Detailed Description

To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined purposes, the following detailed description of the embodiments of the present invention is provided with the accompanying drawings and the preferred embodiments.

The first embodiment is as follows:

referring to fig. 1 and 2, an embodiment of the invention provides an automatic extending and retracting device 5 for a microphone, which includes a case 1, a microphone extending opening 12 is formed at an upper end of the case 1, and a microphone flip 3 is disposed on the microphone extending opening 12. The automatic microphone extending and retracting device 5 of the present embodiment further includes an automatic microphone lifting mechanism 51 disposed in the casing 1, a microphone 52 disposed on the automatic microphone lifting mechanism 51 and capable of extending from the microphone extending port 12, and at least one automatic microphone flip opening and closing mechanism 53 connected to the microphone flip 3. The microphone 52 can be driven by the automatic microphone lifting mechanism 51 to do lifting movement, and the automatic opening and closing mechanism 53 of the microphone flip cover controls the opening and closing of the microphone flip cover 3, so that the microphone 52 can be extended from the microphone extension port 12 for use, and can be automatically retracted after use.

Specifically, as shown in fig. 3 and fig. 4, the microphone flip automatic opening and closing mechanism 53 includes a fixed seat 531 disposed at the lower portion of the inner side of the chassis 1, a pull rod 532 rotatably connected to the microphone flip 3, a positioning slider 533 slidably disposed on the fixed seat 531 and connected to the pull rod 532, a pushing member 534 connected to the microphone lifting bracket 510 of the microphone automatic lifting mechanism 51 and acting on the positioning slider 533, an upper pushing block 535 slidably disposed on the fixed seat 531 and located below the positioning slider 533, and a first buffer spring 536 connected between the upper pushing block 535 and the inner side of the chassis 1, wherein a first longitudinal sliding hole 5311 for the positioning slider 533 to slide is formed on the fixed seat, the first longitudinal sliding hole 5311 mainly includes a vertical sliding hole 53111 and an oblique sliding hole 53112 formed by bending the upper portion of the vertical sliding hole 53111 to the inner side of the chassis 1, as shown in fig. 6.

Specifically, the bent portions of the vertical sliding hole 53111 and the inclined sliding hole 53112 are smooth arc-shaped structures, so that the positioning sliding member 533 can move smoothly between the vertical sliding hole 53111 and the inclined sliding hole 53112.

Due to the special structural design of the combination of the first longitudinal sliding hole 5311 and the positioning sliding member 533, not only can a guiding function be provided for the upward and downward movement of the pull rod 532, but also the upward and downward movement range of the pull rod 532 can be limited, so as to ensure that the opening and closing movement strokes of the microphone flip 3 are the same each time.

Specifically, as shown in fig. 7, an opening 5340 is formed on the pushing member 534, an upper hook 5341 is formed at an upper portion of the opening 5340, and in the process that the microphone lifting bracket 510 drives the pushing member 534 to move down, the upper hook 5341 acts on the positioning sliding member 533 downward, so that the positioning sliding member 533 slides out of the oblique sliding hole 53112 along the inclined inner wall of the oblique sliding hole 53112 until entering the vertical sliding hole 53111; then, as the pushing member 534 moves downward, the positioning sliding member 533 is driven to move downward in the vertical sliding hole 53111. Meanwhile, an upper guiding inclined plane 53411 is formed at the inner side edge of the upper hook 5341, and the upper guiding inclined plane 53411 is inclined from the top to the bottom towards the inner side of the case 1. Due to the special design of the upper guiding inclined plane 53411, in the downward moving process of the pushing member 534, the positioning sliding member 533 slides outward under the guiding action of the upper guiding inclined plane 53411 of the upper hook 5341, thereby sliding out of the inclined sliding hole 53112 and entering the vertical sliding hole 53111. Therefore, the positioning sliding member 533 can smoothly slide out of the oblique sliding hole 53112 and enter the vertical sliding hole 53111, and the sliding stability of the positioning sliding member 533 is improved.

Meanwhile, as shown in fig. 7, a lower hook 5342 is formed at the lower portion of the opening 5340, and in the process that the microphone lifting bracket 510 drives the pushing member 534 to move upwards, the lower hook 5342 acts upwards on the positioning slider 533, so that the positioning slider 533 moves upwards vertically along the vertical sliding hole 53111 until entering the oblique sliding hole 53112, so that the positioning slider 533 is limited in the oblique sliding hole 53112. Meanwhile, a lower guiding inclined plane 53421 is formed at the inner side of the lower hook 5342, and the lower guiding inclined plane 53421 is inclined from the top to the bottom toward the inner side of the case. Due to the special design of the lower guiding inclined plane 53421, when the pushing member 534 pushes the positioning sliding member 533 to move up to the connection between the vertical sliding hole 53111 and the oblique sliding hole 53112, the positioning sliding member 533 slides in the direction of the oblique sliding hole 53112 under the guiding action of the lower guiding inclined plane 53421 of the lower hook 5342, and thus slides into the oblique sliding hole 53112. Therefore, the positioning slider 533 can smoothly slide into the inclined sliding hole 53112 from the vertical sliding hole 53111, and the stability of sliding of the positioning slider 533 is improved.

Specifically, as shown in fig. 4, a limiting guide inclined plane 5350 is formed on the upper end surface of the push-up block 535, and the limiting guide inclined plane 5350 is inclined from top to bottom toward the inner side of the chassis. Due to the arrangement of the limiting guide inclined plane 5350, the positioning sliding piece 533 sliding into the inclined sliding hole 53112 is limited conveniently, and the positioning sliding piece 533 is prevented from sliding out.

As for the combination manner of the pushing-up block 535 and the fixing base 531, as shown in fig. 4, in this embodiment, a second longitudinal sliding hole 5351 is formed on the pushing-up block 535, at least one positioning member 5312 is disposed on the fixing base 531, preferably, the number of the positioning members 5312 is two, and the positioning members 5312 are embedded in the second longitudinal sliding hole 5351. Therefore, under the matching action of the positioning member 5312 and the second longitudinal sliding hole 5351, the push-up block 535 can vertically slide on the fixing base 531 along the positioning member 5312.

Specifically, as shown in fig. 5, a connecting member 5352 is disposed on the push-up block 535, and the first buffer spring 536 is connected between the connecting member 5352 and the fixing seat 531. Therefore, when the push-up block 535 slides up and down along the fixing base 531, the first buffer spring 536 can provide elastic restoring force.

Meanwhile, as for the effect of the first buffer spring 536, in the process of closing the microphone flip 3 onto the microphone extension opening 12, due to the existence of the first buffer spring 536, when the pushing member 534 applies a downward acting force to the positioning sliding member 533, the pushing member 535 is applied with a downward acting force at the same time, so that the first buffer spring 536 is elastically deformed and stretched, and then the first buffer spring 536 plays a role of buffering and preventing hands from being pinched. Specifically, after the microphone 52 is driven by the automatic microphone lifting mechanism 51 to descend and be accommodated in the case 1, the microphone flip 3 needs to be closed; therefore, the microphone flip 3 is driven by the pull rod 532 to swing toward the microphone extension opening 12, and at this time, if the hand of a person is placed in the microphone extension opening 12, and if the first buffer spring 536 is not present, the swing closing action of the microphone flip 3 will exert a large force on the hand of the person, and the hand clamping phenomenon will occur, so that the hand of the person is seriously injured. Due to the existence of the first buffer spring 536 of the embodiment, a good buffering effect is achieved, the acting force of the microphone flip 3 when touching a human hand is weakened, and the time of the microphone flip 3 when touching the human hand is slowed down, so that the injury degree of the human hand is reduced.

Specifically, the positioning sliding member 533, the positioning member 5312 and the connecting member 5352 may be screws or bolts.

In order to further play a role in buffering and preventing hands from being clamped, a second buffer spring 537 is connected between the inner wall of the case 1 and the pull rod 532 in the embodiment. At the in-process that pull rod 532 reciprocated, elastic deformation takes place for second buffer spring 537, provides the cushioning effect by second buffer spring 537, prevents that pull rod 532 atress from removing at the excessive speed, plays the buffering and prevents the purpose of tong.

In order to facilitate the smooth opening and closing of the microphone flip 3 by the pull rod 532, in the embodiment, the microphone flip 3 is rotatably disposed on the inner wall of the case 1 through a connecting block 31, and the upper end of the pull rod 532 is rotatably connected with the connecting block 31. Because the pull rod 532, the connecting block 31 and the microphone flip 3 are adaptively rotated, the microphone flip 3 can be smoothly opened and closed by the pull rod 532.

When the microphone flip 3 needs to be opened so that the microphone 52 can be extended out of the microphone extension port 12 for use, the microphone automatic lifting mechanism 51 drives the microphone lifting bracket 510 to move upward, the microphone lifting bracket 510 drives the pushing member 534 to move upward, and the lower hook 5342 of the pushing member 534 applies an upward acting force to the positioning slider 533, as shown in fig. 3, 4 and 8, so that the positioning slider 533 moves upward in the vertical sliding hole 53111 until the positioning slider 533 slides into the oblique sliding hole 53112; in the process, the pushing member 534 continuously moves upwards, so that the pushing block 535 continuously moves upwards and returns under the action of the elastic restoring force of the first buffer spring 536; then, as the positioning sliding piece 533 slides into the oblique sliding hole 53112, the lower hook 5342 of the pushing piece 534 is separated from the positioning sliding piece 533; the push-up block 535 moves upward to abut against the positioning sliding member 533, so as to prevent the positioning sliding member 533 from sliding out of the inclined sliding hole 53112, and the positioning sliding member 533 is limited in the inclined sliding hole 53112, as shown in fig. 9.

In the process, the pull rod 532 moves upwards, so that the pull rod 532, the connecting block 31 and the microphone flip 3 are adaptively rotated, the microphone flip 3 is driven to move away from the microphone extension port 12, and the microphone extension port 12 is completely opened; then, the microphone lifting bracket 510 moves upward continuously, and finally drives the microphone 52 to extend out of the microphone extension opening 12 for use.

When the microphone 52 needs to be retracted into the chassis 1 after being used, the microphone automatic lifting mechanism 51 drives the microphone lifting bracket 510 and the microphone 52 to move downward until the upper hook 5341 of the pushing member 534 on the microphone lifting bracket 510 moves downward to contact with the positioning slider 533, and the upper hook 5341 acts downward on the positioning slider 533, so that the positioning slider 533 slides out of the inclined sliding hole 53112 along the inclined inner wall of the inclined sliding hole 53112 until entering the vertical sliding hole 53111, that is, the state in fig. 9 is changed to the state in fig. 8; then, with the downward movement of the pushing member 534, the positioning sliding member 533 is driven to move downward in the vertical sliding hole 53111; meanwhile, the pushing member 534 pushes the pushing block 535 downward, so that the pushing block 535 moves vertically downward along the positioning member 5312 on the fixing base 531, and the first buffer spring 536 is stretched, as shown in fig. 3. In the process that the positioning sliding member 533 moves down, the microphone 52 is completely retracted into the case 1, and meanwhile, as the pull rod 532 moves down, the pull rod 532 pulls the connection block 31 downward, so that the pull rod 532, the connection block 31 and the microphone flip 3 adaptively rotate, thereby moving the microphone flip 3 to the microphone extension opening 12 to hold the microphone extension opening 12, as shown in fig. 3, completing the retraction of the microphone 52.

In this embodiment, as shown in fig. 10, the microphone automatic lifting mechanism 51 includes a microphone lifting rack 5111 vertically disposed in the case 1, a microphone lifting support 510 slidably disposed in the case 1, a microphone lifting driving motor 512 disposed in the case 1 and connected to the microphone lifting support 510, and a microphone lifting transmission gear 513 disposed on an output shaft of the microphone lifting driving motor 512 and engaged with the microphone lifting rack 5111, and the microphone 52 is disposed on the microphone lifting support 510. The microphone lifting driving motor 512 provides driving force to drive the microphone lifting transmission gear 513 to rotate, and since the microphone lifting rack 511 is fixed in the case 1, the microphone lifting transmission gear 513 must move up and down along the microphone lifting rack 511 when rotating, thereby driving the microphone lifting support 510 and the microphone 52 to do lifting movement. For example, when the microphone lift transmission gear 513 rotates clockwise, the microphone lift bracket 510 and the microphone 52 move upward, and conversely, the microphone lift bracket 510 and the microphone 52 move downward.

In the embodiment, the microphone lifting rack 511 is meshed with the microphone lifting transmission gear 513, so that the lifting movement is realized, the noise is low, the operation is stable and stable, and the service life is long.

Simultaneously, in order to improve microphone lifting support 510 when being elevating movement, can not take place the slope, this embodiment is in microphone lifting support 510 both ends difference fixedly connected with at least one lift direction slider 514 be formed with on the machine case 1 inner wall and supply lift direction slider 514 embedding and the gliding lift direction spout that goes up and down (not seen in the figure) for microphone lifting support 510 is under the drive of microphone lift driving motor 512, is vertical motion along lift direction spout, and the slope phenomenon can not appear, improves microphone lifting support 510 and microphone 52 and is elevating movement's stability and accuracy.

The automatic microphone extending and retracting device provided by the embodiment is applied to a multifunctional conference all-in-one machine, is particularly suitable for being installed in places such as conference rooms, education institutions and training institutions, and achieves paperless office speech. When the multifunctional mobile phone case is installed specifically, the microphone can be automatically extended out and retracted into the table, and the multifunctional mobile phone case can be embedded into the table as long as the upper end face of the case 1 is flush with the table top, so that the table top is not occupied, the whole case is neat and attractive, the multifunctional mobile phone case is not required to be carried in addition in use at every time, and is convenient to use and high in practicability.

Example two:

the main difference between the present embodiment and the first embodiment is that, as shown in fig. 10, a microphone lifting and positioning mechanism 54 is disposed in the casing 1, the microphone lifting and positioning mechanism 54 includes a lifting and lowering slide 541 disposed on the inner wall of the casing 1, a microphone positioning frame 542 disposed at the upper end of the lifting and lowering slide 541, and a return spring 543 connected between the lower end of the lifting and lowering slide 541 and the inner wall of the casing 1, wherein a microphone through hole 5420 for the microphone 52 to pass through is formed on the microphone positioning frame 542, and a push connecting block 5410 located right below the microphone lifting and lowering support 510 is disposed at the lower end of the lifting and lowering slide 541; a rubber plug 5421 matched with the microphone extension opening 12 is arranged on the microphone perforation 5420 of the microphone positioning frame 542. The rubber plug 5421 has certain elasticity and flexibility, and plays a certain role in protecting the microphone 52; meanwhile, after the microphone 52 rises to the right position, the rubber plug 5421 is matched with the microphone extension port 12 to seal the microphone extension port 12, so that the dust-proof function in the case 1 is achieved.

In the process that the microphone lifting support 510 drives the microphone 52 to do lifting movement, the microphone 52 is limited in the microphone through hole 5420, so that the phenomenon of random swing cannot occur, and the microphone 52 can stably rise and fall.

Specifically, in the process that the microphone lifting bracket 510 drives the microphone 52 to descend, the microphone lifting bracket 510 synchronously pushes the pushing connecting block 5410 at the lower end of the lifting sliding plate 541 downwards, so that the lifting sliding plate 541 drives the microphone positioning frame 542 to synchronously move downwards, and the return spring 543 is stretched to deform; when the microphone lifting bracket 510 drives the microphone 52 to ascend, the microphone lifting bracket 510 releases the acting force on the lifting slide plate 541, and the lifting slide plate 541 drives the microphone positioning frame 542 to restore and move upwards under the elastic restoring force of the return spring 543, so that the microphone positioning frame has an automatic return function; therefore, in the process of the microphone 52 being lifted or lowered by the microphone lifting bracket 510, the microphone 52 is positioned by the microphone positioning frame 542 of the microphone lifting positioning mechanism 54, so as to prevent the microphone 52 from swinging randomly and improve the stability and accuracy of the lifting and lowering of the microphone 52.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that other structures obtained by using the same or similar technical features as the above-described embodiments of the present invention are within the protection scope of the present invention.

Claims (10)

1. An automatic extending and withdrawing device for a microphone comprises a case, a microphone extending port is arranged at the upper end of the case, and a microphone flip cover is arranged on the microphone extending port, and is characterized by also comprising an automatic microphone lifting mechanism arranged in the case, a microphone arranged on the automatic microphone lifting mechanism and capable of extending from the microphone extending port, and at least one automatic microphone flip cover opening and closing mechanism connected with the microphone flip cover, wherein the automatic microphone flip cover opening and closing mechanism comprises a fixed seat arranged at the lower part of the inner side of the case, a pull rod rotationally connected with the microphone flip cover, a positioning sliding part arranged on the fixed seat in a sliding way and connected with the pull rod, a pushing part connected to a microphone lifting support of the automatic microphone lifting mechanism and acting on the positioning sliding part, an upper pushing block arranged on the fixed seat in a sliding way and positioned below the positioning sliding part, And a first buffer spring connected between the push-up block and the inner side of the case; microphone automatic lifting mechanism includes vertical setting up in quick-witted incasement a microphone lifting rack, slide and set up in quick-witted incasement microphone lifting support, set up in quick-witted incasement and with a microphone lifting drive motor of microphone lifting support connection and set up on microphone lifting drive motor's the output shaft and with a microphone lifting rack engaged with microphone lift drive gear, the microphone sets up on microphone lifting support.

2. The automatic extending and retracting device of a microphone according to claim 1, wherein a first longitudinal sliding hole for sliding the positioning sliding member is formed on the fixing base, and the first longitudinal sliding hole mainly comprises a vertical sliding hole and an oblique sliding hole formed by bending an upper portion of the vertical sliding hole toward an inner side of the case.

3. The automatic extending and retracting device of a microphone according to claim 1, wherein an opening is formed on the pushing member, an upper hook is formed on the upper portion of the opening, and an upper guide slope is formed on the inner side of the upper hook, the upper guide slope being inclined from top to bottom toward the inside of the case; a lower hook body is formed at the lower part of the opening, a lower guide inclined plane is formed at the inner side edge of the lower hook body, and the lower guide inclined plane inclines towards the inner side of the case from top to bottom.

4. The automatic extending and retracting device of a microphone according to claim 1, wherein a limit guide slope is formed on the upper end surface of the push-up block, and the limit guide slope is inclined from top to bottom toward the inside of the case.

5. The automatic extending and retracting device of a microphone according to claim 1, wherein a second longitudinal sliding hole is formed on the push-up block, and at least one positioning member is provided on the fixing base and inserted into the second longitudinal sliding hole.

6. The automatic extending and retracting device of a microphone according to claim 1, wherein a connecting member is provided on the push-up block, and the first buffer spring is connected between the connecting member and the fixed base.

7. The automatic microphone extending and retracting device as claimed in claim 1, wherein a second buffer spring is connected between the inner wall of the housing and the pull rod.

8. The automatic extending and retracting device of the microphone as claimed in claim 1, wherein the microphone flip is rotatably disposed on the inner wall of the casing through a connecting block, and the upper end of the pull rod is rotatably connected to the connecting block.

9. The automatic extending and retracting device of a microphone according to any one of claims 1 to 8, wherein at least one elevating guide slider is fixedly connected to each end of the microphone elevating bracket, and an elevating guide sliding groove for the elevating guide slider to be inserted and to slide is formed on the inner wall of the casing.

10. The automatic extending and retracting device of a microphone according to any one of claims 1 to 8, wherein a microphone elevation positioning mechanism is provided in the casing, the microphone elevation positioning mechanism comprising an elevation slide plate provided on an inner wall of the casing, a microphone positioning frame provided on an upper end of the elevation slide plate, and a return spring connected between a lower end of the elevation slide plate and the inner wall of the casing, wherein a microphone penetration hole for the microphone to pass through is formed on the microphone positioning frame, and a push link block provided on a lower end of the elevation slide plate and located right below the microphone elevation bracket; a rubber plug matched with the extension opening of the microphone is arranged on the microphone perforation of the microphone positioning frame.

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