Ultrasonic interference device of random frequency band

Abstract

The utility model relates to the technical field of ultrasonic interference, and discloses an ultrasonic interference device of a random frequency band, which comprises an interference device main body, four antenna accommodating mechanisms are arranged in the interference device main body, each antenna accommodating mechanism comprises an accommodating box, an ultrasonic antenna is arranged in each accommodating box, and the antenna accommodating mechanisms are arranged in the accommodating boxes. An adjusting box is slidably connected to the interior of each storage box, non-slip mats are fixedly connected to the inner walls of the two sides of each storage box, and an auxiliary bearing is jointly and fixedly connected to the inner wall of each adjusting box and the outer surface of the ultrasonic antenna. According to the ultrasonic interference device with the random frequency band, through the interference device main body, the ultrasonic antenna, the non-slip mat, the adjusting box, the auxiliary bearing, the rotating block, the convex top block, the bearing plate, the top column, the return spring and the non-slip disc, the interference device main body can emit ultrasonic waves with the random frequency after being started, and the adjusting box can slide up and down in the storage box; the ultrasonic antenna can extend out of the top end of the storage box by different heights.

Description

Technical Field

[0001] The utility model relates to the technical field of ultrasonic interference, and specifically relates to an ultrasonic interference device with random frequency bands. Background Technique

[0002] Ultrasonic interference refers to affecting or disrupting the normal operation of other devices, signals or systems by emitting ultrasonic waves with specific frequencies and intensities. Generally, in private conversation scenarios, confidential meetings or confidential places, in order to enhance the security of conversations and prevent conversations from being recorded, ultrasonic interference devices are often used to interfere with possible recording devices.

[0003] The utility model with the authorized announcement number of CN215734301U discloses a portable frequency interference instrument. The baffle is rotatably installed on the top of the power switch through a pillar to achieve blocking protection, avoid accidental touch, and improve the reliability of the utility model. Through the designed compression spring, the compression spring is symmetrically arranged in two, and then it can apply elastic force to push the baffle without external force, ensuring that it rotates back to the top of the power switch to achieve protection, and at the same time, aligning and limiting its position to avoid excessive rotation and unable to achieve the best blocking effect on the baffle. Through the designed rubber strip and rubber block, after the rubber strip and the rubber block slide into contact with each other, a certain frictional resistance can be generated, thereby further limiting the baffle after it is reset by the compression spring to avoid shaking and affecting the blocking protection effect.

[0004] Adopting the above technical solution, although it can prevent accidental touch of the power switch when working while being carried around, in the above technical solution, the antenna is always above the body of the instrument, and it is very easy to touch other hard objects during handling. There is a lack of a flexible storage structure for conveniently and flexibly adjusting the length of the antenna, resulting in inconvenience in storing the entire interference device in a small space and the antenna being easily bent.

[0005] Therefore, those skilled in the art provide an ultrasonic interference device with random frequency bands to solve the problems raised in the above background technique. Content of the Utility Model

[0006] The purpose of the utility model is to provide an ultrasonic interference device with random frequency bands to solve the problems raised in the above background technique.

[0007] To achieve the above purpose, the utility model provides the following technical solution:

[0008] An ultrasonic interference device with random frequency bands includes a main body of the interference device, and four antenna storage mechanisms are arranged inside the main body of the interference device;

[0009] Each of the antenna storage mechanisms includes a storage box. Inside each storage box, an ultrasonic antenna is provided. Inside each storage box, an adjustment box is slidably connected. On both inner walls of each storage box, anti-slip pads are fixedly connected. Inside each adjustment box, auxiliary bearings are fixedly connected to the outer surface of the ultrasonic antenna. At the bottom end of each ultrasonic antenna, a rotating block is fixedly connected. On the outer surface of each rotating block, two convex top blocks are fixedly connected. On the outside of each rotating block, a receiving plate is provided. Inside each adjustment box, two top columns are slidably connected. A return spring is sleeved on the outer surface of each top column. At one end of each top column away from the receiving plate, an anti-slip disc is fixedly connected.

[0010] As a further scheme of the present utility model: The outer surface of each storage box is fixedly connected to the inner wall of the interference device main body. On one side of each anti-slip pad close to the adjustment box, it is in contact with the outer surface of the adjustment box. On one side of each receiving plate close to the rotating block, it is in contact with the outer surface of the rotating block. One end of each top column close to the receiving plate is fixedly connected to the outer surface of the receiving plate. Both ends of each return spring are in contact with the outer surface of the receiving plate and the inner wall of the adjustment box respectively. The outer surface of each anti-slip disc is slidably connected to the inside of the adjustment box. Each ultrasonic antenna is electrically connected to the interference device main body through a wire. Four connecting columns are fixedly connected to the bottom surface of the interference device main body. At the bottom end of each connecting column, a universal wheel is fixedly connected.

[0011] As a further scheme of the present utility model: A telescopic pull rod is fixedly connected to the front surface of the interference device main body. An anti-slip sleeve is fixedly connected to the outer surface of each ultrasonic antenna.

[0012] As a further scheme of the present utility model: A handle support is fixedly connected to the upper surface of the interference device main body. Inside each handle support, a support rod is fixedly connected.

[0013] As a further scheme of the present utility model: Inside each handle support, a grip is provided. The inner wall of each grip is rotatably connected to the outer surface of the support rod.

[0014] As a further scheme of the present utility model: On both sides of each adjustment box, limit sliders are fixedly connected. The outer surface of each limit slider is slidably connected to the inside of the storage box.

[0015] Compared with the prior art, the beneficial effects of the present utility model are:

[0016] Through the mutual cooperation of the interference device main body, storage box, ultrasonic antenna, anti-slip pad, adjustment box, auxiliary bearing, rotating block, convex top block, bearing plate, top column, return spring and anti-slip disc, after the interference device main body is activated, it can emit ultrasonic waves with random frequencies itself. The adjustment box can slide up and down inside the storage box, so that the ultrasonic antenna can extend to different heights at the top of the storage box. With the help of the auxiliary bearing, turning the ultrasonic antenna can make the two convex top blocks below each ultrasonic antenna respectively push against the two bearing plates in each adjustment box. Then, the bearing plates can slide the top column and the anti-slip disc along the inside of the adjustment box and squeeze them against the anti-slip pad. A stable frictional extrusion is formed between the anti-slip disc and the anti-slip pad, so as to fix the position of the ultrasonic antenna relative to the storage box. Thus, the length of the ultrasonic antenna extending out of the storage box can be flexibly adjusted and fixed, which is convenient for adjusting the length of the ultrasonic antenna and also convenient for flexibly storing the ultrasonic antenna. It avoids the problem that it is not convenient to store the entire interference device in a small space and the antenna is easily bent due to the lack of a flexible storage structure for conveniently and flexibly adjusting the antenna length. Description of the Drawings

[0017] Figure 1 It is a schematic diagram of the overall structure of an ultrasonic interference device with random frequency bands;

[0018] Figure 2 It is a schematic diagram of the sectional three-dimensional structure of the storage box in an ultrasonic interference device with random frequency bands;

[0019] Figure 3 It is a schematic diagram of the sectional three-dimensional structure of the adjustment box in an ultrasonic interference device with random frequency bands;

[0020] Figure 4 It is a schematic diagram of the side and bottom three-dimensional structure of the interference device main body in an ultrasonic interference device with random frequency bands.

[0021] In the figure: 1. Interference device main body; 2. Antenna storage mechanism; 201. Storage box; 202. Ultrasonic antenna; 203. Anti-slip pad; 204. Adjustment box; 205. Auxiliary bearing; 206. Rotating block; 207. Convex top block; 208. Bearing plate; 209. Top column; 210. Return spring; 211. Anti-slip disc; 3. Connecting column; 4. Universal wheel; 5. Handle support; 6. Support rod; 7. Grip; 8. Telescopic pull rod; 9. Anti-slip sleeve; 10. Limit slider. Detailed Implementation Manner

[0022] Please refer to Figures 1-4, An ultrasonic interference device with random frequency bands, comprising an interference device main body 1. Four antenna storage mechanisms 2 are arranged inside the interference device main body 1. Each antenna storage mechanism 2 includes a storage box 201. An ultrasonic antenna 202 is arranged inside each storage box 201. The outer surface of each storage box 201 is fixedly connected to the inner wall of the interference device main body 1. Each ultrasonic antenna 202 is electrically connected to the interference device main body 1 through a wire. Four connecting columns 3 are fixedly connected to the bottom surface of the interference device main body 1. A universal wheel 4 is fixedly connected to the bottom end of each connecting column 3. After the interference device main body 1 is started, it can emit ultrasonic waves with random frequency bands. By setting the connecting columns 3, universal wheels 4 can be connected to the bottom of the interference device main body 1, thereby facilitating the convenient movement of the entire interference device.

[0023] A regulating box 204 is slidably connected inside each storage box 201. Anti-slip pads 203 are fixedly connected to the inner walls on both sides of each storage box 201. One side surface of each anti-slip pad 203 close to the regulating box 204 is in contact with the outer surface of the regulating box 204. A telescopic pull rod 8 is fixedly connected to the front surface of the interference device main body 1. Anti-slip sleeves 9 are fixedly connected to the outer surfaces of each ultrasonic antenna 202. By setting the interference device main body 1 to be telescopic, it is convenient to pull the entire interference device for movement and handling. By setting the anti-slip sleeves 9, the anti-slip property of the outer surface of the top of the ultrasonic antenna 202 can be increased, thereby facilitating the pulling and screwing of the ultrasonic antenna 202.

[0024] Auxiliary bearings 205 are fixedly connected to the inner walls of each regulating box 204 and the outer surfaces of the ultrasonic antennas 202 together. A rotating block 206 is fixedly connected to the bottom end of each ultrasonic antenna 202. Two convex top blocks 207 are fixedly connected to the outer surface of each rotating block 206. A handle support 5 is fixedly connected to the upper surface of the interference device main body 1. A support rod 6 is fixedly connected to the inner wall of each handle support 5. By setting the support rod 6, a rotating base surface can be provided for the hand-held structure inside the handle support 5, thereby increasing the flexibility of use of the hand-held structure. By setting the handle support 5 and the support rod 6, they can cooperate with the above-mentioned hand-held structure to lift the entire interference device, thereby facilitating its handling and movement at different heights.

[0025] A receiving plate 208 is provided on the outer side of each rotating block 206. Two ejector posts 209 are slidably connected inside each adjusting box 204. One side surface of each receiving plate 208 close to the rotating block 206 is in contact with the outer surface of the rotating block 206. One end of each ejector post 209 close to the receiving plate 208 is fixedly connected to the outer surface of the receiving plate 208. A grip 7 is provided inside each handle support 5. The inner wall of each grip 7 is rotatably connected to the outer surface of the support rod 6. By providing the grip 7, it can rotate around the outer surface of the support rod 6 inside the handle support 5. Thus, after the grip 7 is held by hand, it is convenient to lift the entire interference device, thereby facilitating its handling and movement at different heights.

[0026] A return spring 210 is sleeved on the outer surface of each ejector post 209. One end of each ejector post 209 far from the receiving plate 208 is fixedly connected with an anti-slip disc 211. Two ends of each return spring 210 are respectively in contact with the outer surface of the receiving plate 208 and the inner wall of the adjusting box 204. The outer surface of each anti-slip disc 211 is slidably connected with the inside of the adjusting box 204. Two side surfaces of each adjusting box 204 are fixedly connected with limit sliders 10. The outer surface of each limit slider 10 is slidably connected with the inside of the storage box 201. By providing the limit sliders 10, it can slide up and down directionally inside the adjusting box 204, thereby increasing the directional stability when the ultrasonic antenna 202 slides up and down relative to the storage box 201.

[0027] The working principle of the present utility model is as follows: When in use, hold the handle 7 by hand to lift the entire interference device to different heights. Hold the telescopic pull rod 8 by hand and cooperate with the universal wheels 4 to push and pull the entire interference device. When the interference device main body 1 is enabled, ultrasonic waves with random frequencies can be emitted. Before enabling the interference device main body 1, it is necessary to adjust the length of the ultrasonic wave antenna 202 extending out of the top of each storage box 201. At this time, pinch the anti-slip sleeve 9 on the outer surface of each ultrasonic wave antenna 202 and pull the ultrasonic wave antenna 202 and the adjustment box 204 upward relative to the storage box 201 until the ultrasonic wave antenna 202 extends out of the top of the storage box 201 by an appropriate length. Then, with the help of the auxiliary bearing 205, twist the ultrasonic wave antenna 202 so that the two convex top blocks 207 below each ultrasonic wave antenna 202 respectively push against the two bearing plates 208 in each adjustment box 204. Further, the bearing plates 208 slide the top column 209 and the anti-slip disc 211 along the inside of the adjustment box 204 and squeeze them against the anti-slip pad 203. A stable frictional extrusion is formed between the anti-slip disc 211 and the anti-slip pad 203, thereby fixing the position of the ultrasonic wave antenna 202 relative to the storage box 201, so as to flexibly adjust and fix the length of the ultrasonic wave antenna 202 extending out of the storage box 201. And referring to the above process, the ultrasonic wave antenna 202 can also be retracted into the storage box 201 at different lengths, which plays the role of facilitating the adjustment of the length of the ultrasonic wave antenna 202 and also facilitating the flexible storage of the ultrasonic wave antenna 202. The design of the entire random frequency band ultrasonic interference device effectively solves the problem that due to the lack of a flexible storage structure for conveniently and flexibly adjusting the antenna length, it is not convenient to store the entire interference device in a small space and the antenna is easily bent.

[0028] The above is only the preferred specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present utility model.

Claims

1. An ultrasonic interference device of random frequency band, comprising an interference device body (1), characterized in that: Four antenna storage mechanisms (2) are arranged inside the interference device body (1); Each of the antenna storage mechanisms (2) comprises a storage box (201), an ultrasonic antenna (202) is arranged inside each of the storage boxes (201), an adjustment box (204) is slidably connected inside each of the storage boxes (201), anti-slip pads (203) are fixedly connected to the inner walls on both sides of each of the storage boxes (201), an auxiliary bearing (205) is fixedly connected to the inner wall of each of the adjustment boxes (204) and the outer surface of the ultrasonic antenna (202), and each of the ultrasonic antennas (202) is The bottom end is fixedly connected to a rotating block (206), the outer surface of each rotating block (206) is fixedly connected to two convex top blocks (207), the outer side of each rotating block (206) is provided with a receiving plate (208), the interior of each adjusting box (204) is slidably connected to two top columns (209), the outer surface of each top column (209) is sleeved with a return spring (210), and one end of each top column (209) away from the receiving plate (208) is fixedly connected to an anti-skid plate (211).

2. The random frequency ultrasonic interference device according to claim 1, characterized in that: The outer surface of each storage box (201) is fixedly connected to the inner wall of the interference device body (1); the side of each anti-slip pad (203) close to the adjustment box (204) is in contact with the outer surface of the adjustment box (204); the side of each receiving plate (208) close to the rotating block (206) is in contact with the outer surface of the rotating block (206); the end of each top column (209) close to the receiving plate (208) is fixedly connected to the outer surface of the receiving plate (208); The two ends of each of the return springs (210) are in contact with the outer surface of the receiving plate (208) and the inner wall of the adjustment box (204), respectively; the outer surface of each of the anti-slip disks (211) is slidably connected to the inside of the adjustment box (204); each of the ultrasonic antennas (202) is electrically connected to the interference device body (1) through a wire; four connecting columns (3) are fixedly connected to the bottom surface of the interference device body (1); and the bottom end of each of the connecting columns (3) is fixedly connected to a universal wheel (4).

3. The random frequency ultrasonic interference device according to claim 1, characterized in that: A telescopic pull rod (8) is fixedly connected to the front of the interference device body (1), and an anti-slip sleeve (9) is fixedly connected to the outer surface of each ultrasonic antenna (202).

4. The random frequency ultrasonic interference device according to claim 1, characterized in that: A handle support (5) is fixedly connected to the upper surface of the interference device body (1), and a support rod (6) is fixedly connected to the inner wall of each handle support (5).

5. The random frequency ultrasonic interference device according to claim 4, characterized in that: A grip (7) is provided inside each of the handle supports (5), and the inner wall of each of the grips (7) is rotatably connected to the outer surface of the support rod (6).

6. The random frequency ultrasonic interference device according to claim 1, characterized in that: Both side surfaces of each of the adjustment boxes (204) are fixedly connected to a limiting slider (10), and the outer surface of each of the limiting sliders (10) is slidably connected to the interior of the storage box (201).

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