A conference vertical microphone with self-adaptable elevation

Abstract

The application relates to a conference vertical microphone with an adaptive adjustable elevation angle in the technical field of microphones, which comprises a base, a supporting cylinder fixedly installed at the top of the base, and a vertical pipe movably arranged in the supporting cylinder; a lifting mechanism installed in the supporting cylinder and used for adjusting the height of the vertical pipe; a microphone body arranged at the top of the vertical pipe and fixedly installed with a mounting seat at the bottom of the microphone body; and an elevation angle adjusting assembly arranged at the bottom of the mounting seat and the top of the vertical pipe. In the application, the height of the microphone can be flexibly adjusted without manual adjustment, the use requirements of different scenes are met, the microphone can be angle-adjusted in the horizontal direction and elevation angle-adjusted in the vertical direction, the adjustment mode of the horizontal direction and the vertical direction breaks the limitation of the fixed angle of the traditional microphone, various speaking postures and positions can be accurately adapted, and the microphone can be omnidirectionally angle-adjusted.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of microphones, in particular to a conference vertical microphone capable of self-adaptive adjustment of the elevation angle. BACKGROUND

[0002] Microphones, also known as sound receivers, are energy conversion devices that convert sound signals into electrical signals. There are various types of microphones, including moving coil type, condenser type, electret type, and recently emerging silicon microphones. In addition, there are liquid microphones and laser microphones. Most microphones are electret condenser microphones, which work by using a polymeric diaphragm with permanent charge isolation. In modern conference scenarios, microphones are one of the most important devices. However, existing conference vertical microphones have certain problems in actual use: conference vertical microphones usually require manual and tedious adjustment of the elevation angle, which is complex to operate and requires users to spend additional time and effort to adjust. In some conference scenarios where time is of the essence or the speaker needs to be frequently switched, this can greatly affect the efficiency of the conference. Moreover, for people who are not familiar with the operation, it is difficult to quickly adjust the microphone to the appropriate elevation angle position, resulting in poor sound collection effect and affecting the audio quality of the conference.

[0003] To solve the problem of inconvenient adjustment of the elevation angle of the vertical microphone, through retrieval, an invention patent with the authorization announcement number CN118509755B discloses a conference vertical microphone with self-adaptive adjustment of the elevation angle. The conference vertical microphone with self-adaptive adjustment of the elevation angle includes a gun microphone, which is installed on a microphone support. A driving assembly is installed inside the microphone support. The microphone support is connected to a hinge through the driving assembly. A microphone rotating shaft is installed at the bottom of the hinge. The microphone rotating shaft is rotationally installed on the top of the base. A rotation limiting assembly is provided between the microphone and the base. The gun microphone is rotationally installed on the top of the hinge through the driving assembly. The driving assembly is used to realize the stable stay of the gun microphone at a fixed elevation angle relative to the microphone rotating shaft.

[0004] In combination with the above-mentioned patent, the existing technology still has the following technical problems: when the existing technology adjusts the elevation angle of the microphone through the cooperation of the driving member and the rotating shaft, since there is no good fixed structure for the adjusted elevation angle, the microphone may still return to the original position under external force, thereby affecting the user's use requirements. In addition, the rotating method for adjusting the elevation angle of the microphone has the problem of inflexible operation. Therefore, a conference vertical microphone capable of self-adaptive adjustment of the elevation angle is proposed to improve the above-mentioned problems. SUMMARY

[0005] In view of the prior art, the technical problem to be solved by the present application is that, when the elevation angle of the microphone is adjusted, the elevation angle is not fixed after adjustment, so that the microphone will return to the original position under external force, thereby affecting the use requirement of the user.

[0006] To solve the above problems, the present application provides a vertical microphone with self-adaptive elevation angle adjustment for conference, comprising:

[0007] A base is provided, and a support cylinder is fixedly installed on the top of the base, and a vertical pipe is movably arranged in the support cylinder;

[0008] A lifting mechanism is installed in the support cylinder and used for adjusting the height of the vertical pipe;

[0009] A microphone body is arranged on the top of the vertical pipe, and a mounting seat is fixedly installed on the bottom of the microphone body;

[0010] An elevation angle adjusting assembly is arranged on the bottom of the mounting seat and the top of the vertical pipe, and the elevation angle adjusting assembly comprises a T-shaped table fixedly installed on the top of the vertical pipe, a center hole is formed in the middle of the top of the T-shaped table, a longitudinal shaft is rotatably connected to the inner wall of the center hole through a bearing, a center ring is fixed to the top of the longitudinal shaft, a transverse shaft is rotatably connected to the inner wall of the center ring through a bearing, door-shaped rotating plates are fixed to the outer wall of the transverse shaft, the top of the door-shaped rotating plates is fixed to the bottom of the mounting seat, connecting holes are formed in the two sides of the top of the T-shaped table, threaded sleeves are rotatably connected to the inner wall of the connecting holes through bearings, an activity cylinder is sleeved on the outer wall of the T-shaped table, fixed seats are fixed to the inner wall of the activity cylinder, threaded fixing rods are fixedly installed on one end of the bottom of the fixed seats, the threaded fixing rods are screwed with the threaded sleeves, and a pulling assembly is arranged on the inner wall of the activity cylinder and one end of the transverse shaft.

[0011] Further, the pulling assembly comprises a fixed ring fixed to one end of the transverse shaft, an L-shaped rod is fixed to one side of the fixed ring, a buffer assembly is arranged on one end of the L-shaped rod, a ball is arranged on one end of the buffer assembly, an annular groove is formed in the inner wall of the activity cylinder, the ball is attached to the inner wall of the annular groove, and a pulling frame is fixed to one side of the bottom of the activity cylinder.

[0012] Further, the buffer assembly comprises a socket formed in one end of the L-shaped rod, a telescopic rod is fixed to one side of the ball and inserted into the socket, and a first spring is fixedly installed on one end of the telescopic rod and one end of the socket.

[0013] The application is further provided with a corner positioning assembly arranged at the bottom of the longitudinal shaft and the inside of the T-shaped table, and the corner positioning assembly comprises a central cavity arranged at the bottom of the central hole, the bottom of the longitudinal shaft is fixed with a ratchet disc inserted into the central cavity, the inner wall of the central cavity is fixed with a fixed cylinder, the inner wall of the fixed cylinder is hingedly connected with equidistantly distributed pawls, the pawls are clamped in the teeth of the ratchet disc, and the side of the pawls is fixedly installed with a second spring on the inner wall of the fixed cylinder.

[0014] The application is further provided with a sealing cover movably arranged at the top of the inner wall of the movable cylinder, two movable grooves for the movable door-shaped rotating plate are arranged on the sealing cover, an annular sliding groove is arranged at the top of the inner wall of the movable cylinder, and the outer wall of the sealing cover is fixedly provided with a sliding ring inserted into the annular sliding groove, and the cross sections of the sliding ring and the annular sliding groove are designed as T-shaped.

[0015] The application is further provided with a lifting mechanism comprising a threaded column rotatably arranged at the middle position of the supporting cylinder, the top of the threaded column is inserted into the inside of the vertical pipe, the bottom inner wall of the supporting cylinder is fixedly installed with a forward-reverse motor for driving the threaded column to rotate, the bottom of the vertical pipe is fixedly provided with a lifting sleeve, and the inner wall of the lifting sleeve is screw-connected with the outer wall of the threaded column.

[0016] The application is further provided with a fixing sleeve sleeved on the outside of the vertical pipe, a plurality of guide rods are fixedly arranged at the bottom of the fixing sleeve and the bottom inner wall of the supporting cylinder, and a guide hole is arranged on the lifting sleeve for the guide rods to pass through.

[0017] The application is further provided with a limiting disc fixed at the top of the threaded column, equidistantly distributed balls are rotatably arranged at the circumferences of the limiting disc and the T-shaped table, and the two groups of balls are respectively attached to the circumferential inner wall of the vertical pipe and the circumferential inner wall of the movable cylinder.

[0018] The application is further provided with a mounting groove arranged on the base, and a controller is fixedly installed on the inner wall of the mounting groove, the top of the mounting seat is fixedly provided with a connecting frame, an installation hole is arranged at the middle position of the connecting frame, a visual sensor is fixedly installed on the inner wall of the installation hole, and the visual sensor, the controller and the forward-reverse motor are electrically connected.

[0019] The application is further provided with an inspection opening arranged on one side of the supporting cylinder, and an inspection cover is fixedly installed on the inner wall of the inspection opening, and a plurality of heat dissipation openings are arranged on the inspection cover.

[0020] Compared with the prior art, the application has the following advantages after adopting the above structure:

[0021] 1. In this invention, the user's position can be identified by a visual sensor on the top of the mounting base. In conjunction with the controller, the forward and reverse motor drives the lifting mechanism to work. The forward and reverse motor drives the threaded column to rotate. With the screw connection between the threaded column and the lifting sleeve, as well as the guiding action of the guide hole and the guide rod, the height of the stand tube and the microphone body can be automatically adjusted. Thus, the microphone height can be flexibly adjusted according to the user's height, sitting posture, standing posture, etc., without the need for manual adjustment of the microphone height. This meets the usage needs of different scenarios, reduces the time wasted on adjusting the microphone during the meeting, and is especially suitable for scenarios where speakers are frequently switched, greatly improving meeting efficiency and making it more widely applicable.

[0022] 2. In this invention, the bearing connection between the longitudinal axis and the center hole of the T-shaped stage allows the central ring to drive the horizontal axis and the gate-shaped rotating plate to rotate around the longitudinal axis, enabling the microphone to rotate flexibly in the horizontal direction and easily accommodate speakers in different positions. At the same time, the engagement relationship between the ratchet disk and the pawl in the corner positioning assembly, when the longitudinal axis drives the microphone to rotate horizontally, prevents reverse backlash after rotation by unidirectionally limiting the teeth of the ratchet disk through the pawl, ensuring reliable horizontal angle fixation and achieving stable and fixed microphone angle adjustment. This effectively prevents angle deviation under external force and solves the problem of microphones easily returning to their original position under the influence of external force in the prior art.

[0023] 3. In this invention, the elevation adjustment component and the toggle component are designed to lower the height of the movable cylinder around the T-shaped platform under the action of the toggle frame within the toggle component. Due to the engagement between the annular groove and the ball, the ball, L-shaped rod, fixed ring, horizontal axis, and gate-shaped rotating plate are simultaneously rotated longitudinally around the central ring, allowing the microphone body to rotate longitudinally around the central ring and achieving vertical elevation adjustment of the microphone. This "horizontal + vertical" dual-axis adjustment mode breaks the limitations of the fixed angle of traditional microphones, accurately adapts to various speaking postures and positions, and achieves all-round angle adjustment of the microphone with strong self-adaptation. At the same time, during the descent of the movable cylinder, the threaded fixed rod is simultaneously driven to descend within the threaded sleeve, thereby using the self-locking property of the threaded structure of the threaded fixed rod and the threaded sleeve to firmly lock the current position during descent, ensuring that the microphone angle does not shift after elevation adjustment and avoiding elevation changes caused by slight collisions or vibrations.

[0024] 4、The buffer design of the dialing assembly plays an important role in the smoothness and protection of the adjustment process. When the movable cylinder is lifted, the telescopic rod and the first spring between the L-shaped rod and the ball constitute a buffer assembly, which can absorb the impact force during adjustment, reduce the hard friction and collision loss between components; in addition, the ball and the annular groove are matched and slid, which stably converts the lifting movement of the movable cylinder into the rotary movement of the horizontal shaft, makes the angle adjustment process more smooth and labor-saving, avoids the jamming phenomenon, and improves the operation feeling; in terms of the convenience of operation, the user only needs to dial the dialing frame to drive the elevation angle adjustment assembly to work to realize the elevation angle adjustment, without complex operation, and the cooperation of the ball and the bearing connection of each component reduces the resistance during adjustment, so that a single person can easily complete the angle adjustment, the operation is flexible, and it is especially suitable for scenes such as conferences that need to quickly switch the speaking angle. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a three-dimensional structure schematic diagram of the vertical microphone for a conference with self-adaptive elevation angle adjustment of the application;

[0026] Figure 2 It is a three-dimensional sectional view of the vertical microphone for a conference with self-adaptive elevation angle adjustment of the application;

[0027] Figure 3 It is a lifting mechanism structure schematic diagram of the vertical microphone for a conference with self-adaptive elevation angle adjustment of the application;

[0028] Figure 4 It is an elevation angle adjustment assembly structure schematic diagram of the vertical microphone for a conference with self-adaptive elevation angle adjustment of the application;

[0029] Figure 5 It is an annular groove and annular slide structure schematic diagram of the vertical microphone for a conference with self-adaptive elevation angle adjustment of the application;

[0030] Figure 6 It is a horizontal shaft and vertical shaft structure schematic diagram of the vertical microphone for a conference with self-adaptive elevation angle adjustment of the application;

[0031] Figure 7 It is a T-shaped table sectional view of the vertical microphone for a conference with self-adaptive elevation angle adjustment of the application;

[0032] Figure 8 It is a center hole and center cavity structure schematic diagram of the vertical microphone for a conference with self-adaptive elevation angle adjustment of the application;

[0033] Figure 9 It is a first spring and telescopic rod structure schematic diagram of the vertical microphone for a conference with self-adaptive elevation angle adjustment of the application;

[0034] Figure 10The corner positioning assembly structure diagram of the conference vertical microphone with self-adaptive adjustable elevation angle.

[0035] Explanation of reference numerals in the drawings:

[0036] 1, base; 2, controller; 3, support cylinder; 4, fixed sleeve; 5, vertical pipe; 6, elevation angle adjusting assembly; 61, T-shaped table; 62, movable cylinder; 63, door-shaped rotating plate; 64, annular groove; 65, threaded sleeve; 66, threaded fixed rod; 67, fixed seat; 68, horizontal shaft; 69, center ring; 610, fixed ring; 611, vertical shaft; 612, connecting hole; 613, L-shaped rod; 614, ball; 615, center hole; 616, insertion hole; 617, first spring; 618, telescopic rod; 7, mounting seat; 8, microphone body; 9, connecting frame; 10, visual sensor; 11, dialing frame; 12, lifting mechanism; 121, forward and reverse motor; 122, threaded column; 123, lifting sleeve; 124, guide hole; 125, guide rod; 13, maintenance cover; 14, sealing cover; 15, mounting groove; 16, limiting disc; 17, ball; 18, annular sliding groove; 19, movable groove; 20, sliding ring; 21, corner positioning assembly; 211, center cavity; 212, ratchet disc; 213, fixed cylinder; 214, pawl; 215, second spring. DETAILED DESCRIPTION

[0037] The embodiments of the present application are described in detail below with reference to the accompanying drawings. The embodiments described below are examples for explaining the present application and should not be understood as limiting the present application.

[0038] In the description of the present application, it should be understood that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0039] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "setting" should be understood broadly, for example, it can be fixedly connected, set, or detachably connected, set, or integrally connected, set. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0040] Please refer toFigures 1-10 The application provides a conference vertical microphone with an adjustable elevation angle, which comprises the following:

[0041] A base 1 is provided with a supporting cylinder 3 fixedly arranged at the top of the base 1, and a vertical pipe 5 movably arranged in the supporting cylinder 3;

[0042] A lifting mechanism 12 is arranged in the supporting cylinder 3 and used for adjusting the height of the vertical pipe 5;

[0043] A microphone body 8 is arranged at the top of the vertical pipe 5, and the bottom of the microphone body 8 is fixedly provided with a mounting seat 7;

[0044] The bottom of the mounting seat 7 is provided with an elevation angle adjusting assembly 6, and the elevation angle adjusting assembly 6 comprises a T-shaped table 61 fixedly installed at the top of the stand pipe 5, a center hole 615 is formed in the middle of the top of the T-shaped table 61, the inner wall of the center hole 615 is rotatably connected with a vertical shaft 611 through a bearing, the top of the vertical shaft 611 is fixedly connected with a center ring 69, the inner wall of the center ring 69 is rotatably connected with a horizontal shaft 68 through a bearing, the outer wall of the horizontal shaft 68 is fixedly connected with a door-shaped rotating plate 63 on both sides, and the top of the door-shaped rotating plate 63 is fixedly connected with the bottom of the mounting seat 7, a connecting hole 612 is formed in the top of the T-shaped table 61 on both sides, and the inner wall of the connecting hole 612 is rotatably connected with a threaded sleeve 65 through a bearing, the outer wall of the T-shaped table 61 is sleeved with a movable cylinder 62, the inner wall of the movable cylinder 62 is fixedly connected with a fixing seat 67 on both sides, one end of the bottom of the fixing seat 67 is fixedly installed with a threaded fixing rod 66, and the threaded fixing rod 66 is screwed with the threaded sleeve 65, the inner wall of the movable cylinder 62 and one end of the horizontal shaft 68 are provided with a pulling assembly, the pulling assembly comprises a fixed ring 610 fixedly connected with the horizontal shaft 68, one side of the fixed ring 610 is fixedly connected with an L-shaped rod 613, one end of the L-shaped rod 613 is provided with a buffer assembly, one end of the buffer assembly is provided with a ball 614, the inner wall of the movable cylinder 62 is provided with an annular groove 64, and the ball 614 is attached to the inner wall of the annular groove 64, one side of the bottom of the movable cylinder 62 is fixedly connected with a pulling frame 11, the buffer assembly comprises a insertion hole 616 formed in one end of the L-shaped rod 613, one side of the ball 614 is fixedly connected with an expansion rod 618 inserted into the insertion hole 616, one end of the expansion rod 618 and one end of the insertion hole 616 are fixedly installed with a first spring 617, the movable cylinder 62 is lowered outside the T-shaped table 61 by the pulling frame 11 in the pulling assembly, because the annular groove 64 and the ball 614 form a clamping connection, at this time, the ball 614, the L-shaped rod 613, the fixed ring 610, the horizontal shaft 68 and the door-shaped rotating plate 63 can be synchronously driven to rotate longitudinally around the center ring 69, so that the microphone body 8 can rotate longitudinally around the center ring 69, the elevation angle of the microphone in the vertical direction is adjusted, at the same time, the threaded fixing rod 66 is lowered in the threaded sleeve 65 synchronously with the lowering of the movable cylinder 62, the current position during the lowering can be firmly locked by using the self-locking feature of the threaded structure of the threaded fixing rod 66 and the threaded sleeve 65, the angle of the microphone body 8 after the elevation angle adjustment is ensured not to deviate, the elevation angle change caused by slight collision or vibration is avoided, and when the movable cylinder 62 is raised and lowered, the expansion rod 618 and the first spring 617 between the L-shaped rod 613 and the ball 614 form a buffer assembly, which can absorb the impact force during adjustment, reduce the hard friction and collision loss between components.

[0045] The bottom of the longitudinal shaft 611 is provided with a corner positioning assembly 21 inside the T-shaped table 61, and the corner positioning assembly 21 comprises a central cavity 211 formed in the bottom of the central hole 615, the bottom of the longitudinal shaft 611 is fixed with a ratchet disc 212 inserted into the central cavity 211, the inner wall of the central cavity 211 is fixed with a fixed cylinder 213, the inner wall of the fixed cylinder 213 is hinged with equidistantly distributed pawls 214, the pawls 214 are clamped in the teeth of the ratchet disc 212, one side of the pawl 214 is fixedly installed with a second spring 215 on the inner wall of the fixed cylinder 213, the pawl 214 is clamped in the teeth of the ratchet disc 212 under the action of the second spring 215, and the pawl 214 is clamped in the teeth of the ratchet disc 212, and the pawl 214 is clamped in the teeth of the ratchet disc 212. When the longitudinal shaft 611 drives the microphone body 8 to rotate horizontally, the pawl 214 will limit the reverse rotation of the ratchet disc 212, so that the horizontal angle adjustment is not returned due to external force, the stable fixing of the microphone angle adjustment is realized, the angle deviation under the action of external force is effectively prevented, and the problem that the microphone is easily returned to the original position under the influence of external force in the prior art is solved.

[0046] In the application, the inner wall top of the movable cylinder 62 movably provides a sealing cover 14, and two movable grooves 19 for the door-shaped rotating plate 63 are formed in the sealing cover 14. The inner wall top of the movable cylinder 62 is provided with an annular sliding groove 18, and the outer wall of the sealing cover 14 is fixed with a sliding ring 20 inserted into the annular sliding groove 18. The cross sections of the sliding ring 20 and the annular sliding groove 18 are designed as T-shaped. The sealing cover 14 is covered on the inner wall top of the movable cylinder 62, which can effectively prevent dust, water vapor, sundries and the like from entering the interior of the elevation angle adjusting assembly 6, avoid affecting the smoothness of the rotation of the elevation angle adjusting assembly 6, help to maintain the long-term stable working state, and cooperate with the sliding ring 20 and the annular sliding groove 18 to ensure the firmness of the connection between the sealing cover 14 and the movable cylinder 62, and ensure that the sealing cover 14 always moves synchronously with the movable cylinder 62 when the movable cylinder 62 ascends and descends, and does not hinder the normal operation of the movable cylinder 62. At the same time, the movable grooves 19 provide a movement space for the door-shaped rotating plate 63, avoid the interference of the sealing cover 14 to the movement of the door-shaped rotating plate 63, and ensure that the adjustment function of the elevation angle adjusting assembly 6 is not affected.

[0047] In the application, the lifting mechanism 12 comprises a threaded column 122 rotatably arranged at the middle position of the support cylinder 3, the top of the threaded column 122 is inserted into the inside of the stand pipe 5, the inner wall of the bottom of the support cylinder 3 is fixedly installed with a reversible motor 121 for driving the threaded column 122 to rotate, the bottom of the stand pipe 5 is fixedly installed with a lifting sleeve 123, the inner wall of the lifting sleeve 123 is screwed with the outer wall of the threaded column 122, the top of the support cylinder 3 is fixedly installed with a fixed sleeve 4 sleeved outside the stand pipe 5, the bottom of the fixed sleeve 4 and the inner wall of the bottom of the support cylinder 3 are fixedly installed with a plurality of guide rods 125, the lifting sleeve 123 is provided with guide holes 124 through which the guide rods 125 pass, the top of the threaded column 122 is fixedly installed with a limiting disc 16, the circumferential part of the limiting disc 16 and the circumferential part of the T-shaped table 61 are both rollingly arranged with equidistantly distributed rolling balls 17, the two groups of rolling balls 17 are respectively attached to the circumferential inner wall of the stand pipe 5 and the circumferential inner wall of the movable cylinder 62, the base 1 is provided with an installation groove 15, the inner wall of the installation groove 15 is fixedly installed with a controller 2, the top of the mounting seat 7 is fixedly installed with a connecting frame 9, the middle position of the connecting frame 9 is provided with an installation hole, the inner wall of the installation hole is fixedly installed with a visual sensor 10, the visual sensor 10, the controller 2 and the reversible motor 121 are electrically connected, the position of the user is recognized through the visual sensor 10, the recognition signal is transmitted to the controller 2, the controller 2 drives the lifting mechanism 12 to work, the threaded column 122 in the lifting mechanism 12 is driven to rotate by the reversible motor 121, since the threaded column 122 is screwed with the lifting sleeve 123 at the bottom of the stand pipe 5, and the lifting sleeve 123 slides along the guide rods 125 between the fixed sleeve 4 and the support cylinder 3 through the guide holes 124, therefore, the lifting sleeve 123 and the stand pipe 5 are lifted along the guide rods 125 when the threaded column 122 rotates, so as to drive the microphone body 8 to adjust the height, when the visual sensor 10 is positioned to the mouth of the user, the lifting mechanism 12 is controlled to stop working through the controller 2, finally, the height of the microphone body 8 is automatically adjusted, which is suitable for the height or posture of different users.

[0048] In the application, one side of the support cylinder 3 is provided with an inspection opening, and the inner wall of the inspection opening is fixedly installed with an inspection cover 13, a plurality of heat dissipation openings are formed in the inspection cover 13, the inspection cover 13 and the heat dissipation openings arranged on the support cylinder 3 can facilitate the maintenance of the internal components and dissipate heat for the reversible motor 121 and other components, so as to ensure the long-term stable operation of the equipment.

[0049] In summary, the working principle of the present application: in use, the position of the user is identified by the visual sensor 10 on the top of the mounting seat 7 connected to the frame 9, and the identification signal is transmitted to the controller 2 in the mounting groove 15 of the base 1, the controller 2 drives the lifting mechanism 12 at the bottom of the support cylinder 3 to work, the screw column 122 in the support cylinder 3 is driven to rotate by the forward and reverse motor 121 in the lifting mechanism 12, since the screw column 122 is screwed with the lifting sleeve 123 at the bottom of the stand pipe 5, and the lifting sleeve 123 slides along the guide rod 125 between the fixed sleeve 4 and the support cylinder 3 through the guide hole 124, therefore, when the screw column 122 rotates, it will drive the lifting sleeve 123 and the stand pipe 5 to rise along the guide rod 125, thereby driving the microphone body 8 to adjust the height, when the visual sensor 10 is positioned at the mouth of the user, the lifting mechanism 12 is stopped by the controller 2, and finally the height of the microphone body 8 is automatically adjusted to adapt to the height or posture of different users.

[0050] When the microphone body 8 reaches a certain position, since the T-shaped table 61 top center hole 615 is connected to the longitudinal shaft 611 through the bearing, the center ring 69 fixed at the top of the longitudinal shaft 611 can rotate around the center hole 615, and the horizontal shaft 68 in the center ring 69 is connected to the mounting seat 7 through the door-shaped turning plate 63, therefore, in use, the user can manually adjust the microphone body 8 to rotate around the center hole 615 along the longitudinal shaft 611 in the horizontal direction, to realize the horizontal angle adjustment of the microphone body 8, so that the microphone body 8 reaches the accurate position; at the same time, the ratchet disc 212 at the bottom of the longitudinal shaft 611 is located in the center cavity 211 of the T-shaped table 61, the fixed cylinder 213 in the inner wall of the center cavity 211, the pawl 214 is clamped with the teeth of the ratchet disc 212 under the action of the second spring 215, forming one-way limiting, when the longitudinal shaft 611 drives the microphone body 8 to rotate horizontally, the pawl 214 will limit the reverse rotation of the ratchet disc 212, to ensure that after the horizontal angle adjustment, it will not back off due to external force, to realize the stable fixation of the angle;

[0051] Then, the user can dial the dial frame 11 at the bottom of the movable cylinder 62, drive the movable cylinder 62 to descend outside the T-shaped table 61, because the annular groove 64 and the ball 614 form a clamping connection, at this time, the ball 614, the L-shaped rod 613, the fixed ring 610, the horizontal shaft 68 and the door-shaped rotating plate 63 can be synchronously driven to rotate longitudinally around the center ring 69, so that the microphone body 8 can rotate longitudinally around the center ring 69, the elevation angle of the microphone in the vertical direction is adjusted; at the same time, in the descending process of the movable cylinder 62, the threaded fixed rod 66 is synchronously driven to descend in the threaded sleeve 65, the current position during the descending is locked firmly by using the self-locking feature of the threaded structure of the threaded fixed rod 66 and the threaded sleeve 65, the angle of the microphone body 8 after the elevation angle adjustment is ensured not to deviate, the change of the elevation angle caused by slight collision or vibration is avoided, so that the microphone body 8 can be accurately aligned with the mouth position of the user; and when the movable cylinder 62 ascends and descends, the telescopic rod 618 and the first spring 617 between the L-shaped rod 613 and the ball 614 constitute a buffer assembly, which can absorb the impact force during the adjustment, reduce the hard friction and collision loss between the components.

[0052] In combination with the current actual demand, the above-mentioned embodiments adopted by the present application are not limited to the scope, various changes made within the knowledge range of the skilled in the art without departing from the concept of the present application still fall within the protection scope of the present application.

Claims

1. A vertical microphone for conferences with adaptively adjustable elevation angle, characterized in that, include: The base (1) has a support cylinder (3) fixedly installed on its top, and a vertical tube (5) is movably installed inside the support cylinder (3). A lifting mechanism (12) is installed inside the support cylinder (3) and is used to adjust the height of the riser (5); Microphone body (8), the microphone body (8) is disposed on the top of the riser (5), and a mounting base (7) is fixedly installed on the bottom of the microphone body (8). An elevation adjustment assembly (6) is provided at the bottom of the mounting base (7) and the top of the riser (5). The elevation adjustment assembly (6) includes a T-shaped platform (61) fixedly installed on the top of the riser (5). A central hole (615) is provided at the middle of the top of the T-shaped platform (61). A longitudinal shaft (611) is rotatably connected to the inner wall of the central hole (615) through a bearing. A central ring (69) is fixed at the top of the longitudinal shaft (611). A horizontal shaft (68) is rotatably connected to the inner wall of the central ring (69) through a bearing. A gate-shaped rotating plate (63) is fixed on both sides of the outer wall of the horizontal shaft (68). The top of the T-shaped platform (61) is fixed to the bottom of the mounting base (7). The top two sides of the T-shaped platform (61) are provided with connecting holes (612), and the inner walls of the connecting holes (612) are rotatably connected with threaded sleeves (65) through bearings. The outer wall of the T-shaped platform (61) is fitted with a movable cylinder (62), and the inner walls of the movable cylinder (62) are fixed with fixed seats (67) on both sides. The bottom end of the fixed seat (67) is fixedly installed with a threaded fixed rod (66), and the threaded fixed rod (66) is screwed to the threaded sleeve (65). The inner wall of the movable cylinder (62) and one end of the horizontal shaft (68) are provided with a toggle assembly. The actuating assembly includes a fixing ring (610) fixed to one end of the horizontal shaft (68), and an L-shaped rod (613) fixed to one side of the fixing ring (610). A buffer assembly is provided at one end of the L-shaped rod (613), and a ball (614) is provided at one end of the buffer assembly. An annular groove (64) is provided on the inner wall of the movable cylinder (62), and the ball (614) fits against the inner wall of the annular groove (64). An actuating frame (11) is fixed to one side of the bottom of the movable cylinder (62). The bottom of the longitudinal shaft (611) and the interior of the T-shaped platform (61) are provided with a corner positioning assembly (21), and the corner positioning assembly (21) includes a central cavity (211) opened at the bottom of the central hole (615). A ratchet disk (212) inserted into the central cavity (211) is fixed at the bottom of the longitudinal shaft (611). A fixing cylinder (213) is fixed on the inner wall of the central cavity (211), and pawls (214) are hinged to the inner wall of the fixing cylinder (213) at equal intervals. The pawls (214) are engaged in the teeth of the ratchet disk (212), and a second spring (215) is fixedly installed on one side of the pawl (214) and the inner wall of the fixing cylinder (213).

2. A conference standing microphone with adaptively adjustable elevation angle according to claim 1, characterized in that, The buffer assembly includes a socket (616) at one end of an L-shaped rod (613), and a telescopic rod (618) inserted into the socket (616) is fixed on one side of the ball (614). A first spring (617) is fixedly installed at one end of the telescopic rod (618) and at one end of the socket (616).

3. A conference standing microphone with adaptively adjustable elevation angle according to claim 1, characterized in that, The inner wall of the movable cylinder (62) is movably provided with a sealing cover (14), and the sealing cover (14) has two movable grooves (19) for the door-shaped rotating plate (63) to move. The inner wall of the movable cylinder (62) is provided with an annular sliding groove (18), and the outer wall of the sealing cover (14) is fixed with a sliding ring (20) inserted into the annular sliding groove (18). The cross sections of the sliding ring (20) and the annular sliding groove (18) are both designed as T-shaped.

4. A conference standing microphone with adaptively adjustable elevation angle according to claim 3, characterized in that, The lifting mechanism (12) includes a threaded column (122) rotatably disposed in the middle of the support cylinder (3), and the top of the threaded column (122) is inserted into the inside of the riser (5). A forward and reverse motor (121) for driving the threaded column (122) to rotate is fixedly installed on the bottom inner wall of the support cylinder (3). A lifting sleeve (123) is fixed at the bottom of the riser (5), and the inner wall of the lifting sleeve (123) is screwed to the outer wall of the threaded column (122).

5. A conference standing microphone with adaptively adjustable elevation angle according to claim 4, characterized in that, The top of the support cylinder (3) is fixed with a fixed sleeve (4) sleeved outside the riser (5), and the bottom of the fixed sleeve (4) and the bottom inner wall of the support cylinder (3) are fixed with multiple guide rods (125). The lifting sleeve (123) is provided with a guide hole (124) for the guide rods (125) to pass through.

6. A conference standing microphone with adaptively adjustable elevation angle according to claim 5, characterized in that, The top of the threaded column (122) is fixed with a limiting plate (16), and the circumference of the limiting plate (16) and the circumference of the T-shaped platform (61) are both rolled with equally distributed balls (17). The two sets of balls (17) are respectively attached to the inner circumference of the riser (5) and the inner circumference of the movable cylinder (62).

7. A vertical microphone for conferences with adaptively adjustable elevation angle according to claim 4, characterized in that, The base (1) has an installation groove (15) and a controller (2) is fixedly installed on the inner wall of the installation groove (15). The top of the mounting base (7) has a connecting frame (9) and an installation hole is provided in the middle of the connecting frame (9). A vision sensor (10) is fixedly installed on the inner wall of the installation hole. The vision sensor (10), the controller (2) and the forward and reverse motor (121) are electrically connected.

8. A conference standing microphone with adaptively adjustable elevation angle according to claim 1, characterized in that, The support cylinder (3) has an inspection port on one side, and an inspection cover (13) is fixedly installed on the inner wall of the inspection port. Multiple heat dissipation holes are provided on the inspection cover (13).

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