CN218450136U

CN218450136U - Recording shielding device

Info

Publication number: CN218450136U
Application number: CN202221702253.XU
Authority: CN
Inventors: 马伟东; 陈龙
Original assignee: Shenzhen Anweipu Technology Co ltd
Current assignee: Shenzhen Anweipu Technology Co ltd
Priority date: 2022-07-04
Filing date: 2022-07-04
Publication date: 2023-02-03
Anticipated expiration: 2032-07-04

Abstract

The utility model discloses a recording shield, which comprises a shield shell, an ultrasonic device plate and a control mainboard, wherein the ultrasonic device plate and the control mainboard are fixed in the shield shell, at least one side surface of the shield shell is provided with a plurality of diffusion meshes to form a working surface, and the ultrasonic device plate radiates ultrasonic interference signals outwards through the diffusion meshes; further comprising: the mounting seat is used for mounting the recording shielding device on the supporting table surface; and one end of the angle adjusting component is fixedly connected with the shield shell, and the other end of the angle adjusting component is fixedly connected with the mounting seat and used for adjusting an included angle between the working surface and the supporting table board. When the recording shielding device is installed on the supporting table surface through the installation seat, the shielding device shell is broken off by hand to drive the angle adjusting component to rotate, namely, the included angle between the working surface on the shielding device shell and the supporting table surface is adjusted, the operation is simple and convenient, and the shielding surface formed by the recording shielding device can be quickly adjusted to the monitored area so as to achieve the best interference effect.

Description

Recording shielding device

Technical Field

The utility model belongs to the technical field of the recording disturbs, concretely relates to recording shielding ware.

Background

At present, the existing anti-recording technology mainly comprises a white noise method and an electromagnetic interference method. The white noise method is to emit audible noise to the recording equipment, and when the power of the audible noise recorded by the recording equipment is greater than that of the effective audio, the normal recording of the effective audio can be covered. The electromagnetic wave interference is to transmit high-power electromagnetic wave to interfere the normal operation of the electronic elements of the recording equipment, thereby realizing the recording prevention function. In the white noise interference method, because the frequency of the white noise is in the same range as the audible frequency of human ears, when the audible noise is too large, the normal conversation can be influenced. The electromagnetic wave interference mainly aims at old recording equipment such as cassette tape recorders or analog recording pens, and has limited shielding effect on some new recording equipment such as mobile phones, digital recording pens and the like. For this reason, ultrasonic wave shielding devices have been developed in the future, which employ the sound masking principle, and utilize the generated ultrasonic waves to interfere with the input signal of the microphone of the recording device, so as to effectively interfere with most recording devices on the market, and will not emit audible sound to affect the normal conversation.

However, the ultrasonic recording shielding device must be directed to the monitored area to achieve the best interference effect when in use, and the existing ultrasonic recording shielding device generally utilizes the plane at the bottom to stand on the supporting table surface, can only lean against other articles when adjusting the orientation of the recording shielding area, is easy to topple over when the angle is too large, and is very inconvenient.

SUMMERY OF THE UTILITY MODEL

A primary object of the utility model is to provide a recording shield to solve the current ultrasonic recording shield inconvenient problem when adjusting its recording shielding region's orientation.

In order to solve the above problems, the utility model adopts the following technical proposal:

a recording shielding device comprises a shielding device shell, an ultrasonic device plate and a control main board, wherein the ultrasonic device plate and the control main board are fixed in the shielding device shell, at least one side surface of the shielding device shell is provided with a plurality of diffusion meshes to form a working surface, and the ultrasonic device plate radiates ultrasonic interference signals outwards through the diffusion meshes; further comprising:

the mounting seat is used for mounting the recording shielding device on a supporting table top;

and one end of the angle adjusting component is fixedly connected with the shield shell, and the other end of the angle adjusting component is fixedly connected with the mounting seat and used for adjusting an included angle between the working surface and the supporting table board.

In some embodiments, the sound recording shield further comprises an angle indicating assembly disposed on the shield housing for displaying an angle between the work surface and the support table.

In some embodiments, the angle indicating assembly comprises:

an indication arrow disposed on a sidewall of the mount;

and the angle dial is fixed on the shielding device shell and is close to the indication arrow.

In certain embodiments, the angular adjustment assembly is a position damped hinge.

In some embodiments, a heat dissipation fan is further disposed in the shield case, and a plurality of heat dissipation meshes are opened on the shield case on the other side surface opposite to the diffusion meshes.

In some embodiments, the ultrasonic device board and the control main board are provided with a plurality of vent holes.

In some embodiments, the ultrasonic device board and the control main board are arranged in parallel and spaced from each other, and the cooling fan is arranged between the ultrasonic device board and the control main board.

In some embodiments, the inner side of the diffusion mesh is provided with a dust screen, or the inner side of the heat dissipation mesh is provided with a dust screen.

In some embodiments, the mounting seat is provided with a plurality of wire body fixing seats for fixing a power line and/or a network cable.

In some embodiments, the shield casing is further provided with a serial power supply jack for supplying power to the jammers connected in series with the recording shield in other interference modes.

In some embodiments, the recording shielding device further includes a white noise interference device, the white noise interference device is fixedly connected to the shielding device housing, and the white noise interference device is electrically connected to a power supply module disposed in the shielding device housing through the serial power supply jack.

In some embodiments, the serial power supply jack is disposed on a side wall of the shield casing, the white noise jammer is arranged in parallel with the shield casing, and a shielding surface of the white noise jammer and the working surface are in the same orientation.

Adopt the produced beneficial effect of above-mentioned technical scheme to lie in: the ultrasonic wave emitted by the ultrasonic device plate can radiate outwards from the diffusion mesh to form a shielding area, so that the anti-recording of the recording equipment in the shielding area can be realized; through setting up angle adjusting subassembly and mount pad, and make the shield casing fixed connection of angle adjusting subassembly one end and shield ware, the other end and mount pad fixed connection, the recording shield ware passes through the mount pad and installs when supporting the mesa, shield ware casing is broken off with the fingers and thumb to the hand and angle adjusting subassembly is driven and rotates, be equivalent to the working face on the regulation shield ware casing promptly and support the contained angle between the mesa, the orientation of working face has been changed, and is simple in operation convenient, can be fast with the shielding region adjustment that this recording shield ware formed to just being monitored the region, in order to reach best interference effect.

Drawings

The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation.

Fig. 1 is an exploded view of a recording shield according to embodiment 1 of the present invention;

fig. 2 is a view showing an overall structure of a recording shield according to embodiment 1 of the present invention;

fig. 3 is a second view of the overall structure of a recording shield according to embodiment 1 of the present invention;

FIG. 4 is an enlarged view of a portion of FIG. 3;

fig. 5 is a schematic structural view of a mounting seat in a recording shield according to embodiment 1 of the present invention;

fig. 6 is a schematic structural view of an angle scale plate in a recording shield according to embodiment 1 of the present invention;

fig. 7 is a schematic structural view of an angle adjustment assembly in a recording shield according to embodiment 1 of the present invention;

fig. 8 is an exploded view of a recording shield according to embodiment 2 of the present invention;

fig. 9 is a schematic view of an overall structure of a recording shield according to embodiment 2 of the present invention;

fig. 10 is a schematic diagram of a recording shielding device and a white noise jammer provided in embodiment 2 of the present invention after being connected in series.

Wherein:

1. a shield case; 101. a top cover; 102. a bottom cover; 103. an outer frame; 111. an upper housing; 112. a lower housing; 11. a switch; 12. a power jack; 13. an ultrasonic device panel; 14. a control main board; 15. a heat radiation fan; 16. a diffusion mesh; 17. radiating meshes; 19. the power supply jacks are connected in series; 2. a mounting seat; 21. a wire body fixing seat; 3. an angle adjustment assembly; 4. an angle indicating assembly; 41. an angle dial; 42. an arrow is indicated; 5. a white noise jammer.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the description of the present invention, it should be clear that the terms "vertical", "horizontal", "longitudinal", "front", "rear", "left", "right", "up", "down", "horizontal", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description of the present invention, and do not mean that the device or element referred to must have a specific orientation or position, and thus, cannot be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1

Embodiment 1 of the utility model provides a recording shielding device, as shown in fig. 1-3, including shielding device casing 1, set up in ultrasonic device board 13 and control mainboard 14 in shielding device casing 1. Wherein, at least one side of the shielding device shell 1 is provided with a plurality of diffusion meshes 16 to form a working surface, the ultrasonic wave emitted by the ultrasonic device plate 13 can radiate outwards from the diffusion meshes 16 to form a shielding area, thereby realizing the anti-recording of the recording equipment in the shielding area; the recording shield also comprises a mounting seat 2 used for mounting the recording shield on a supporting table surface; and one end with 1 fixed connection of shield casing, the other end with 2 fixed connection's of mount pad angle adjusting part 3 for be used for adjusting the contained angle between working face and the support mesa on the shield casing 1.

The shielding housing 1 is made of, for example, but not limited to, plastic or metal, the metal may have better housing rigidity and is favorable for conducting heat inside the device, and the plastic may reduce the weight of the device. The ultrasonic device plate 13 may be placed right against the working surface to have a better radiation effect. When the recording interference equipment can be arranged on a supporting table top through the mounting seat 2, the recording interference equipment can be arranged above or below a solid surface, for example, the recording interference equipment can be arranged above a table top or below the table top, and when the recording interference equipment is arranged below the table top, the recording interference equipment can have a better concealing effect.

The control main board 14 is used for driving the ultrasonic device board 13 to emit an ultrasonic signal outwards. In this application, the control main board 14 and the ultrasonic device board 13 are two circuit boards separately disposed. Preferably, the control main board 14 and the ultrasonic device board 13 are arranged in parallel and spaced from each other.

Alternatively, in other modified embodiments, the control main board 14 and the ultrasonic device board 13 may be integrated on the same circuit board.

The ultrasonic device board 13 is a circuit board provided with a plurality of ultrasonic probes, the plurality of ultrasonic probes can be arranged in an array or in a non-array manner, the plurality of ultrasonic probes are controlled by a driving circuit on the control main board 14, single control, group control or group control can be realized, and at least two ultrasonic signals with different frequencies can be simultaneously emitted outwards. When adopting array arrangement, the ultrasonic wave signal that this a plurality of ultrasonic transducer sent can have better directionality, and has stronger transmission acoustic pressure in the transmission direction.

After adopting above-mentioned technical scheme, through setting up angle adjusting part 3 and mount pad 2, and make 3 one end of angle adjusting part and the 1 fixed connection of shielding ware casing of shielding ware, the other end and 2 fixed connection of mount pad, when the recording shielding ware passes through mount pad 2 and installs on supporting the mesa, break shielding ware casing 1 with the hands and drive angle adjusting part 3 and rotate, be equivalent to working face on the regulation shielding ware casing 1 promptly and the contained angle between the supporting the mesa, the orientation of working face has been changed, and easy operation is convenient, can be fast with the shielding region adjustment that this recording shielding ware formed to just to monitored the region, in order to reach best interference effect.

In one embodiment, the angle adjustment assembly 3 is a position damped hinge, as shown in FIG. 7, with the angle between the left and right hinge leaves adjustable over an angular range, such as, but not limited to, 0-90. In this embodiment, as shown in fig. 3, the left hinge leaf and the right hinge leaf are respectively and fixedly connected to the shielding device housing 1 and the mounting seat 2, when the mounting seat 2 is mounted on the supporting platform, a user manually breaks the shielding device housing 1 to drive the left hinge leaf and the right hinge leaf to rotate relatively, and an included angle between the working surface on which the diffusion mesh 16 is disposed on the shielding device housing 1 and the supporting platform can be arbitrarily positioned within a certain angle range, so that the orientation of the recording shielding region can be adjusted.

In one embodiment, the positioning damping hinge is an arbitrary stopping hinge with adjustable torque, the torque between two hinges of the positioning damping hinge is adjustable, after an included angle between a working surface and a supporting surface is adjusted to a proper angle, a pseudo-fixing effect can be achieved by increasing the torque, and the included angle between the two hinges is fixed to enable the orientation of a shielding surface to be fixed.

Further, the recording shielding device provided by the embodiment further comprises an angle indicating component 4 which is arranged on the shielding device shell 1, and a user can visually judge the included angle between the working surface provided with the diffusion mesh 16 on the shielding device shell 1 and the supporting table board through the angle indicating component 4.

Specifically, as shown in fig. 3, 4 and 6, the angle indicating assembly 4 includes an indicating arrow 42 and an angle dial 41, the indicating arrow 42 is disposed on a side wall of the mounting base 2, and may be a groove, a protrusion, or a dark mark; an angle dial 41 is fixed to the housing and is arranged adjacent to the indication arrow 42. In this embodiment, a plurality of angle scales are engraved on the angle dial 41, and are fixed on the side of the shielding device housing 1 connected to the angle adjustment assembly 3, and when a user observes from the side perpendicular to the angle dial 41, the scale line aligned with the axis of the indication arrow 42 is the included angle between the working surface on which the diffusion mesh 16 is disposed on the shielding device housing 1 and the supporting table.

In one embodiment, a plurality of ultrasonic emitters are disposed on the ultrasonic device board 13, and generate a large amount of heat during operation, in order to improve the heat dissipation performance of the recording and shielding device, a heat dissipation fan 15 is further disposed in the shielding device housing 1, and a plurality of heat dissipation mesh holes 17 are formed on the other side surface of the shielding device housing 1 opposite to the diffusion mesh holes 16.

Optionally, a plurality of ventilation holes are formed in each of the ultrasonic device board 13 and the control main board 14 to improve the heat dissipation capability of the ultrasonic device board 13 and the control main board 14.

Alternatively, the ultrasonic device board 13 and the control main board 14 are disposed in the shielding case 1 in parallel and at an interval from top to bottom, and the heat dissipation fan 15 is disposed between the ultrasonic device board 13 and the control main board 14, so that the heat dissipation fan 15 forms a relatively strong air flow path when operating.

When the diffusion mesh 16 is used as an air inlet and the heat dissipation mesh 17 is used as an air outlet, the air flow path in the housing 1 is: the diffusing mesh 16 → the vent hole on the ultrasonic device plate 13 → the heat dissipation fan 15 → the vent hole on the control main board 14 → the heat dissipating mesh 17; at this time, in order to prevent the external dust from excessively entering the shield case 1 to adversely affect the components, a dust screen may be provided inside the diffusion mesh 16.

When the heat dissipation mesh 17 is used as an air inlet and the diffusion mesh 16 is used as an air outlet, the air flow path in the housing 1 is: the heat-dissipating mesh 17 → the vent hole in the control main board 14 → the heat-dissipating fan 15 → the vent hole in the ultrasonic device board 13 → the diffusing mesh 16; at this time, in order to prevent the external dust from entering into the shield case 1 too much to cause adverse effects on the components, a dust screen may be provided inside the heat dissipating mesh 17.

The flowing air takes away most of heat generated when the ultrasonic device board 13 and the control main board 14 work, and faults caused by overheating are avoided.

In addition, in order to make the wiring of the recording shielding device neater, as shown in fig. 5, a plurality of wire body fixing seats 21 are arranged on the mounting seat 2 to fix the power line and/or the network cable, thereby avoiding the disorder of the wiring.

In one embodiment, there are various conventional alternatives to the structure of the mounting base 2 and the manner of fixing it, for example, the mounting base 2 can be a plate-like structure, which is fixed on the supporting table by screws or gluing; or a sucker structure can be selected and directly adsorbed on the supporting table-board; and the clamping structure can be selected to clamp on the supporting table top, and the like. In the above, those skilled in the art can reasonably select the specific application environment, and the details are not described herein.

Further, as shown in fig. 2, the shield case 1 is provided with a switch 11 and a power jack 12.

In one embodiment, the sound recording shield can be modularly combined with other disturbers (e.g., white noise disturbers or electromagnetic wave disturbers), so that the suitable interference mode can be selected according to the use environment. Therefore, the shielding device housing 1 is further provided with a serial power supply jack 19 for supplying power to the jammers in other interference modes connected in series with the recording shielding device.

Further, the recording shielding device further comprises a white noise interference device 5, the white noise interference device 5 is fixedly connected with the shielding device shell 1, and the white noise interference device 5 is electrically connected with a power supply module arranged in the shielding device shell 1 through the serial power supply jack 19.

Specifically, this recording shield still includes white noise interference ware 5, still is provided with a pair of connecting portion that can cooperate on this shield casing 1 and the casing of white noise interference ware 5 to white noise interference ware 1 can detachably and this shield casing 1 fixed connection. In the connected state, the white noise jammer 5 can connect its own power supply line to the power supply module in the shield case 1 in this embodiment by connecting the power supply jack 19 in series, so as to supply power to the white noise jammer 5 without an additional power line. By arranging the white noise interference unit 5 as a supplementary means of the ultrasonic recording shielding mode, a better shielding effect can be realized.

The white noise interference unit 5 is provided with a knob switch for adjusting the interference power of the white noise.

Further, should concatenate power supply jack (19) and can set up on the lateral wall of this shield casing (1), this white noise interference ware (5) and this shield casing (1) are arranged in parallel, and the shielding face and this working face of this white noise interference ware (5) are same orientation.

Specifically, for hiding effect and pleasing to the eye effect, concatenate power supply jack (19) and set up on the lateral wall of this shield casing (1), the connecting portion between white noise interference unit 5 and the shield casing 1 also can set up on concatenating the same lateral wall of power supply jack (19), and this connecting portion can be the screw nut connection that sets up the through-hole, also can be the draw-in groove connection. After connecting, this white noise interference ware (5) and this shield casing (1) are arranged in parallel, and the shielding face of this white noise interference ware (5) is same orientation with this working face, and the shielding face is unanimous can have better shielding effect on the shielding direction that sets up.

Further, in the present embodiment, as shown in fig. 1, the shield case 1 includes an outer frame 103, a top cover 101, and a bottom cover 102; the outer frame 103 is of a rectangular structure, a support frame is arranged in the outer frame, and the power supply jack 12 and the switching power supply jack are arranged on the side surface of the outer frame 103; the top cover 101 and the bottom cover 102 are respectively arranged at two ends of the outer frame 103 to form an independent accommodating cavity, the ultrasonic device board 13, the control main board 14 and the heat dissipation fan 15 are positioned in the accommodating cavity, the diffusion meshes 16 are arranged on the top cover 101, the heat dissipation meshes 17 are arranged on the bottom cover 102, and the diffusion meshes 16 and the heat dissipation meshes 17 are circular or hexagonal.

Besides the power supply module and the control module, the control main board 14 is further provided with a communication module (a WIFI module, a bluetooth module, and a wired connection module), a power detection module, a power adjustment module, a power alarm module, an equipment networking and work indication module, and correspondingly, the shielding case 1 is provided with jacks and/or buttons corresponding to the modules, and/or indication lamps.

Example 2

The main difference between the present embodiment 2 and the above embodiment 1 is that, as shown in fig. 8, the shield case 1 in the present embodiment includes an upper case 111 and a lower case 112, the bottom end of the upper case 111 is an open end, and the top surface thereof is provided with a diffusion mesh 16; the top end of the lower shell 112 is an open end, the bottom surface of the lower shell is provided with a heat dissipation mesh 17, and the side surface of the lower shell is provided with a power supply jack 12 and a series power supply jack 19; the bottom end of the upper shell 111 and the top end of the lower shell 112 are connected to form an independent accommodating cavity.

As shown in fig. 9 and 10, the side of the recording shielding device is detachably connected in series with a white noise interference device 5, and the white noise interference device 5 can connect its own power supply line with the power supply module of the recording shielding device in this embodiment through the serial power supply jack 19 to supply power to the white noise interference device 5 without an additional power supply line.

The rest of the structure is the same as that of embodiment 1, and is not described again.

The above description is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A sound recording shield, comprising:

the ultrasonic wave interference device comprises a shielding device shell (1), an ultrasonic wave device board (13) and a control main board (14), wherein the ultrasonic wave device board (13) is a circuit board provided with a plurality of ultrasonic wave probes, the ultrasonic wave probes can be arranged in an array or a non-array manner, the ultrasonic wave probes are controlled by a driving circuit on the control main board (14) and simultaneously emit ultrasonic wave signals with at least two different frequencies, a plurality of diffusion meshes (16) are formed in at least one side surface of the shielding device shell (1) to form a working surface, and the ultrasonic wave device board (13) radiates ultrasonic wave interference signals outwards through the diffusion meshes (16); the recording shield further comprises:

the mounting seat (2) is used for mounting the recording shielding device on a supporting table top;

and one end of the angle adjusting component (3) is fixedly connected with the shielding device shell (1), and the other end of the angle adjusting component is fixedly connected with the mounting seat (2) and used for adjusting an included angle between the working face and the supporting table board.

2. The sound recording screen of claim 1, further comprising an angle indicating assembly (4) disposed on the screen housing (1) for indicating the angle between the work surface and the support deck.

3. The sound recording screen according to claim 2, characterized in that the angle indicating assembly (4) comprises:

an indication arrow (42) provided on a side wall of the mount (2);

an angle dial (41) fixed to the shield case (1) and disposed adjacent to the indication arrow (42).

4. The sound recording screen as claimed in any of claims 1 to 3, characterized in that the angle adjustment assembly (3) is a position-damped hinge.

5. The sound recording shield according to claim 4, wherein a heat radiation fan (15) is further disposed in the shield case (1), and a plurality of heat radiation meshes (17) are opened on the other side surface of the shield case (1) opposite to the diffusion meshes (16).

6. The sound recording shield as claimed in claim 5, wherein a plurality of ventilation holes are formed in each of said ultrasonic device board (13) and said control main board (14).

7. The sound recording shield as claimed in claim 5, wherein said ultrasonic device board (13) and said control main board (14) are disposed in parallel and spaced apart from each other, and said heat dissipating fan (15) is disposed between said ultrasonic device board (13) and said control main board (14).

8. The sound recording shield as claimed in claim 5, wherein a dust screen is provided inside said diffusing meshes (16) or inside said heat dissipating meshes (17).

9. The sound recording shield according to claim 4, wherein a plurality of wire body holders (21) are provided on the mounting base (2) for holding power wires and/or network wires.

10. The sound recording screen as claimed in claim 4, characterized in that the screen housing (1) is also provided with a series power supply socket (19) for supplying a power supply to a jammer connected in series with the sound recording screen.

11. The recording screen according to claim 10, characterized in that it further comprises a white noise jammer (5), said white noise jammer (5) being fixedly connected to said screen housing (1), said white noise jammer (5) being electrically connected to a power supply module disposed in said screen housing (1) through said serial power supply jack (19).

12. The recording shield according to claim 11, wherein the serial power supply jack (19) is disposed on a side wall of the shield case (1), the white noise jammer (5) is arranged in parallel with the shield case (1), and a shielding surface of the white noise jammer (5) and the working surface are in the same orientation.