DDS-based multipath signal generator protection device and method

Abstract

The invention discloses a DDS-based multipath signal generator protection device and method, and relates to the field of protection devices. A DDS-based multipath signal generator protection device comprises a box body, a box cover is connected to the upper part of the box body through hinges, a bottom plate is arranged in the box body, an edge groove is fixedly connected to the upper part of the bottom plate, and a sliding plate is slidably connected to the interior of the edge groove; a generator body is placed on the sliding plate, a clamping assembly is fixedly connected to the sliding plate, and a second compression spring is connected between the edge groove and the sliding plate; a fixing block is fixedly connected below the sliding plate, a rotating rod is rotationally connected to the fixing block, and a buffering assembly is arranged at the bottom of the box body; when the bottom plate moves downwards, the rotating rod makes contact with the buffering assembly, and the buffering assembly and the second compression spring jointly act on the sliding plate so that the sliding plate can be suspended to form a buffering area capable of floating up and down. The generator body can be protected according to different use conditions, and the fixing effect on the generator body is further improved when the generator is not used.

Description

Technical Field

[0001] The invention belongs to the technical field of protection devices, and in particular relates to a DDS-based multi-channel signal generator protection device. Background Art

[0002] DDS, or direct digital synthesis, is a technology used to generate waveforms with precise frequency and phase. DDS multi-channel signal generator generates analog signals in a digital way, including various waveforms such as sine waves, square waves, and triangle waves. It has the advantages of high frequency stability, high accuracy, low phase noise, and fast frequency switching speed. It is widely used in communications, consumer electronics, aerospace / defense and other fields. With the continuous advancement of digital technology, DDS multi-channel signal generators are also constantly developing and improving.

[0003] The DDS multi-channel signal generator may be damaged by vibration during transportation and storage, and is easily affected by the outside world when in use. Based on this, a protective device is used to protect the signal generator. However, the shock-absorbing mechanism in the protective device, such as the buffer spring and the shock-absorbing plate, can absorb the vibration energy, but due to the lack of stability of the shock-absorbing mechanism, shaking during use may cause slight jitter of the DDS trigger signal. This jitter can cause a phase jump of the transmitted signal, destroy the coherence of the coherent radar, and have an adverse effect on the detection of radar moving targets and SAR imaging. Based on this, the present invention is proposed. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a DDS-based multi-channel signal generator protection device that can overcome the above problems or at least partially solve the above problems.

[0005] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is: a DDS-based multi-channel signal generator protection device, including a box body, a box cover is connected to the top of the box body by a hinge, and also includes: a bottom plate is provided in the box body, a side groove is fixedly connected to the top of the bottom plate, and a sliding plate is slidably connected in the side groove; a generator body is placed on the sliding plate, a clamping assembly is fixedly connected to the sliding plate, and a second compression spring is connected between the side groove and the sliding plate; a fixed block is fixedly connected to the bottom of the sliding plate, a rotating rod is rotatably connected to the fixed block, and a buffer assembly is provided at the bottom of the box body; when the bottom plate moves downward, the rotating rod contacts the buffer assembly, and the buffer assembly and the second compression spring jointly act on the sliding plate so that the sliding plate is suspended to form a buffer area that can float up and down; when the bottom plate moves upward, the rotating rod moves upward to break away from the contact with the box body and the buffer assembly, and the second compression spring squeezes the sliding plate to contact the bottom plate.

[0006] Preferably, the clamping assembly includes a support plate, a clamping block, a connecting block, and an adjusting bolt. The support plate is fixedly connected to the sliding plate, the support plate is fixedly connected to the connecting block, the adjusting bolt is connected to the clamping block by a thread, the adjusting bolt is rotatably connected to the connecting block, and the clamping block is slidably connected to the support plate.

[0007] Preferably, the buffer assembly includes a sliding abutting block, a sliding rod, a first compression spring, and a stop block. The sliding rod is fixedly connected to the sliding abutting block, the sliding rod is slidably connected to the stop block, the stop block is fixedly connected to the box body, and the first compression spring is connected between the stop block and the sliding abutting block.

[0008] Preferably, a plurality of suction cups are fixedly connected to the sliding plate, and the suction cups are used to adsorb the bottom of the box body.

[0009] Further, a plurality of air bags are fixedly connected below the sliding plate. The air bags correspond to the positions of the suction cups and each air bag is communicated with the corresponding suction cup. When the air bag is restored from the compressed state, the air in the suction cup is absorbed, and the adsorption force of the suction cup on the box body is increased.

[0010] Preferably, a plurality of louvers are rotatably connected to both sides of the box body. A support rod is fixedly connected to the louver, and a guide plate is rotatably connected to the support rod.

[0011] Further, a guide block is fixedly connected to the bottom plate. A guide groove is formed in the guide block. The guide plate is slidably connected to the guide groove. When the guide block moves upward, the guide plate is pushed upward and drives the louver to rotate and open.

[0012] Preferably, a support block is fixedly connected to the box body. A synchronous motor is fixedly connected to the bottom of the box body. The output end of the synchronous motor is fixedly connected to a threaded rod. The threaded rod is rotatably connected to the support block, and the threaded rod is connected to the bottom plate by a thread.

[0013] Preferably, an external terminal is fixedly connected to the box body. A connecting wire is fixedly connected to the external terminal, and the other end of the connecting wire is plugged into the generator body.

[0014] A usage method of a protection device for a multi-channel signal generator based on DDS includes the following steps: S2. Rotate the adjusting bolt to clamp the generator body with the clamping block, and insert the connecting wire into the generator body; S3. Control the bottom plate to descend to the lowest position, cover the cover plate for storage; S4. When in use, control the bottom plate to move upward a certain distance, the louvers automatically open, and insert the external signal wire and power wire into the external terminal.

[0015] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art: By moving the bottom plate up and down, the present invention realizes the contact and separation between the rotating rod and the buffer assembly, and further enables the sliding plate to reach two states: being able to move up and down suspended to buffer vibration and being in contact with the bottom plate stably, so as to protect the generator body according to different usage situations. By providing an airbag with a certain self - recovery ability and connecting it to the suction cup, when the sliding plate is in a suspended state, the adsorption force of the suction cup on the generator body is increased, and further the fixing effect on the generator body is enhanced. By the up - and - down movement of the guiding block, the guiding plate can drive the louvers to be opened and closed. When storing or transporting the generator body, the louvers are closed to prevent external dust from entering the box, and when the generator body is operating, the louvers are opened to dissipate heat from the generator body. By providing external terminals and connecting wires, users do not need to open the box cover to connect the data line and power line to the generator body every time they use it, and it can avoid damage to the interfaces of the generator body caused by multiple plug - ins. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In the drawings: Figure 1 is a schematic perspective view of a protection device for a multi - channel signal generator based on DDS proposed by the present invention; Figure 2 is a schematic internal structure view of a protection device for a multi - channel signal generator based on DDS proposed by the present invention; Figure 3 is a cross - sectional view of a protection device for a multi - channel signal generator based on DDS proposed by the present invention; Figure 4 is a Figure 3 schematic structure view of part A in a protection device for a multi - channel signal generator based on DDS proposed by the present invention; Figure 5 is a Figure 3 schematic structure view of part B in a protection device for a multi - channel signal generator based on DDS proposed by the present invention; Figure 6 is a schematic structure view of the sliding - plate part in a protection device for a multi - channel signal generator based on DDS proposed by the present invention; Figure 7 is a Figure 6 schematic structure view of part C in a protection for a multi - channel signal generator based on DDS proposed by the present invention; Figure 8 is a cross - sectional view of the louver part in a protection device for a multi - channel signal generator based on DDS proposed by the present invention; Figure 9 A DDS-based multi-channel signal generator protection device proposed by the present invention Figure 8 Schematic diagram of the structure at D in the figure.

[0017] In the figure: 1. box body; 11. box cover; 12. external terminal; 121. connecting wire; 13. support block; 2. bottom plate; 21. guide block; 211. guide groove; 3. side groove; 31. sliding plate; 311. suction cup; 32. air bag; 33. fixing block; 34. rotating rod; 35. second compression spring; 4. shutter; 41. support rod; 42. guide plate; 5. synchronous motor; 51. threaded rod; 6. generator body; 7. clamping assembly; 71. support plate; 72. clamping block; 73. connecting block; 74. adjusting bolt; 8. buffer assembly; 81. sliding block; 811. sliding rod; 82. first compression spring; 83. stopper. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0019] Example 1: Reference Figures 1-4 , a DDS-based multi-channel signal generator protection device comprises a box body 1, a box cover 11 is connected to the top of the box body 1 through a hinge, and further comprises: a bottom plate 2 is arranged in the box body 1, a side groove 3 is fixedly connected to the top of the bottom plate 2, and a sliding plate 31 is slidably connected in the side groove 3; a generator body 6 is placed on the sliding plate 31, a clamping assembly 7 is fixedly connected to the sliding plate 31, and a second compression spring 35 is connected between the side groove 3 and the sliding plate 31; a fixed block 33 is fixedly connected to the bottom of the sliding plate 31, a rotating rod 34 is rotatably connected to the fixed block 33, and a buffer assembly 8 is arranged at the bottom of the box body 1; when the bottom plate 2 moves down, the rotating rod 34 contacts the buffer assembly 8, and the buffer assembly 8 and the second compression spring 35 act together on the sliding plate 31 so that the sliding plate 31 is suspended to form a buffer area that can float up and down; when the bottom plate 2 moves up, the rotating rod 34 moves up to break away from the contact with the box body 1 and the buffer assembly 8, and the second compression spring 35 squeezes the sliding plate 31 to contact the bottom plate 2.

[0020] In the present invention, the sliding plate 31 can move up and down inside the side groove 3, and a second compression spring 35 is connected between the upper surface of the sliding plate 31 and the side groove 3. In the absence of external interference, the sliding plate 31 will be pressed on the bottom plate 2 under the action of its own gravity and the elastic force of the second compression spring 35. Thus, the sliding plate 31 is limited and not easy to shake, and the generator body 6 can work normally on the sliding plate 31; The fixed block 33 is slidably connected to the bottom plate 2. Thus, when the bottom plate 2 moves downward, it will drive the sliding plate 31 and the fixed block 33 to move downward through the side groove 3 and the second compression spring 35. During the process of the fixed block 33 driving the rotating rod 34 to move downward, the rotating rod 34 contacts the bottom surface of the box body 1 and rotates to both sides. The bottom of the rotating rod 34 is provided with rollers so as to reduce the friction force between the rotating rod 34 and the bottom surface of the box body 1, making it easier for the rotating rod 34 to slide to both sides. When the rotating rod 34 contacts the buffer assembly 8, with the increase of pressure, the buffer assembly 8 deforms and gradually increases the extrusion force on the connecting rotating rod 34. The extrusion force on the rotating rod 34 is transmitted through the rotating rod 34 and transformed into the force for the fixed block 33 to push the sliding plate 31 upward. The upward pushing force provided by the fixed block 33 to the sliding plate 31 neutralizes the downward pressure provided by the second compression spring 35. Thus, the sliding plate 31 finally stays in a suspended position. At this time, if the box body 1 vibrates, the sliding plate 31 will move up and down to buffer the vibration, thereby being able to protect the generator body 6; By moving the bottom plate 2, the above two effects can be achieved, corresponding to the stable support required when the generator body 6 works and the buffer protection against vibration during handling, so that the generator body 6 can be protected according to different situations.

[0021] Embodiment 2: Refer to Figures 1-9 , a protection device for a multi-channel signal generator based on DDS, which is basically the same as Embodiment 1. Further: The clamping assembly 7 includes a support plate 71, a clamping block 72, a connecting block 73 and an adjusting bolt 74. The support plate 71 is fixedly connected to the sliding plate 31. The support plate 71 is fixedly connected to the connecting block 73. The adjusting bolt 74 is connected to the clamping block 72 by thread. The adjusting bolt 74 is rotatably connected to the connecting block 73. The clamping block 72 is slidably connected to the support plate 71. The buffer assembly 8 includes a sliding abutting block 81, a sliding rod 811, a first compression spring 82 and a stop block 83. The sliding rod 811 is fixedly connected to the sliding abutting block 81. The sliding rod 811 is slidably connected to the stop block 83. The stop block 83 is fixedly connected to the box body 1. The first compression spring 82 is connected between the stop block 83 and the sliding abutting block 81. A plurality of suction cups 311 are fixedly connected to the sliding plate 31. The suction cups 311 are used to adsorb the bottom of the box body 1. A plurality of air bags 32 are fixedly connected below the sliding plate 31. The air bags 32 correspond to the positions of the suction cups 311 and each air bag 32 is communicated with the corresponding suction cup 311. When the air bag 32 is restored from the compressed state, it absorbs the air in the suction cup 311, and the adsorption force of the suction cup 311 on the box body 1 increases.

[0022] In the present invention, the clamping assemblies 7 are arranged on both sides of the sliding plate 31. The two clamping assemblies 7 jointly clamp and fix the generator body 6 to ensure that the generator body 6 will not shift. The support plate 71 is fixed to the sliding plate 31 as a support member, so that the clamping assemblies 7 will move together with the sliding plate 31. The surface of the clamping block 72 in contact with the generator body 6 is provided with vertical anti-slip lines, which can increase the friction force with the generator body 6 and prevent the generator body 6 from shifting in the horizontal direction. The clamping block 72 slides on the support plate 71, and the support plate 71 can limit the clamping block 72 to prevent the clamping block 72 from rotating together when the adjusting bolt 74 is rotated. The adjusting bolt 74 is rotatably connected to the connecting block 73. By rotating the adjusting bolt 74, the clamping block 72 can be pushed to move to complete the clamping of the generator body 6; In the buffer assembly 8, the stop block 83 is fixed on the box body 1. The sliding abutting block 81 is slidably connected to the stop block 83 through the sliding rod 811. A limiting block protruding in a circle is provided at the other end of the sliding rod 811, so as to control the maximum distance that the sliding abutting block 81 is pushed out by the first compression spring 82. The interference fit exists between the rotating rod 34 and the fixed block 33, so as to prevent the rotating rod 34 from rotating arbitrarily after moving upward and disengaging from the contact with the sliding abutting block 81. And a limiting block is provided in the fixed block 33 so that the rotating rod 34 can only rotate a certain angle to prevent the rotating rod 34 from rotating to a vertically downward state and getting stuck with the bottom plate of the box body 1 when moving downward next time; The airbag 32 has a certain self-recovery ability. When the bottom plate 2 drives the sliding plate 31 to move upward, after the rotating rod 34 disengages from the contact with the sliding abutting block 81, the sliding plate 31 loses the support force of the fixed block 33. Under the action of the second compression spring 35, the sliding plate 31 is squeezed towards the bottom plate 2, and the gas inside the airbag 32 is discharged through the hole communicated with the suction cup 311. After the user places the generator body 6 on the sliding plate 31, when the suction cup 311 contacts the sliding plate 31 and the bottom plate 2 moves to the lowest position again, the airbag 32 resets and extracts the air between the suction cup 311 and the box body 6, thereby increasing the adsorption force of the suction cup 311 on the generator body 6 and further increasing the fixing effect on the generator body 6.

[0023] Example 3: Refer to Figures 1-9, A protection device for a multi-channel signal generator based on DDS, which is basically the same as Embodiment 2. Further: A plurality of louvers 4 are rotatably connected to both sides of the box body 1. A support rod 41 is fixedly connected to the louver 4. A guide plate 42 is rotatably connected to the support rod 41. A guide block 21 is fixedly connected to the bottom plate 2. A guide groove 211 is formed in the guide block 21. The guide plate 42 is slidably connected to the guide groove 211. When the guide block 21 moves upward, the guide plate 42 is pushed upward and drives the louver 4 to rotate and open. A support block 13 is fixedly connected to the box body 1. A synchronous motor 5 is fixedly connected to the bottom of the box body 1. The output end of the synchronous motor 5 is fixedly connected to a threaded rod 51. The threaded rod 51 is rotatably connected to the support block 13. The threaded rod 51 is connected to the bottom plate 2 by a thread. An external terminal 12 is fixedly connected to the box body 1. A connecting wire 121 is fixedly connected to the external terminal 12. The other end of the connecting wire 121 is plugged into the generator body 6.

[0024] In the present invention, the upper end of each louver 4 is rotatably connected to the box body 1 through a rotating shaft. By pushing the guide plate 42 obliquely upward, the louver 4 can be driven to rotate and open through the support rod 41 rotatably connected thereto, so that the outside air is connected to the inside of the box body 1, avoiding the heat generated when the generator body 6 is operating from being unable to be discharged. Preferably, an exhaust fan can be provided in front of the louver 4 to increase the heat dissipation effect; The guide plate 42 is slidably connected to the guide groove 211 on the guide block 21 through a rotating shaft. The guide groove 211 is divided into upper, middle and lower sections. The upper section of the guide groove 211 is an inclined groove. When the bottom plate 2 drives the guide block 21 to move upward, the guide groove 211 will push the guide plate 42 to move obliquely upward, so that the closed louver 4 can be opened. The middle section of the guide groove 211 is a vertical guide groove. When the guide plate 42 slides in this section, since the horizontal position remains unchanged, the guide plate 42 will not move, and the louver 4 is always in the open state. The lower section of the guide groove 211 is an open slot. The guide plate 42 disengages from or accesses the guide groove 211 from the opening. The opening width of the lower section of the guide groove 211 is greater than the horizontal length of the upper section, so that the guide plate 42 can be easily accessed into the guide groove 211 in any state; An external terminal 12 is provided on the box body 1, so that the user does not need to open the box cover 11 every time to connect the data cable and the power cable to the generator body 6. The generator body 6 is connected to the external terminal 12 through a connecting wire 121. The connecting wire 121 should be provided with a surplus length to avoid the connecting wire 121 being pulled off during the up and down movement of the generator body 6. This method also reduces the number of pluggings and unplugging of the interface of the generator body 6 and avoids damage to the interface of the generator body 6 caused by multiple pluggings and unplugging; The synchronous motor 5 drives the threaded rod 51 to rotate, thereby achieving the effect of controlling the lifting of the bottom plate 2. A power supply socket should be provided on the outer side of the box body 1 to supply power to the synchronous motor 5 and the added cooling fan through an external power supply.

[0025] Embodiment 4: Refer to Figures 1-9 , a method for using a protection device for a multi-channel signal generator based on DDS, comprising the following steps: S1. Insert the power cord into the box body 1, open the box cover 11, and control the synchronous motor 5 to operate to transport the bottom plate 2 to the highest position. Then, place the generator body 6 on the sliding plate 31; S2. Rotate the adjusting bolt 74 to clamp and fix the generator body 6 with the clamping block 72, and insert the connecting wire 121 into the generator body 6; S3. If the generator body 6 is not needed, control the synchronous motor 5 to transport the bottom plate 2 to the lowest position. At this time, the rotating rod 34 contacts the buffer assembly 8, and the sliding plate 31 is lifted and suspended. The sliding plate 31 can move up and down with a certain buffering effect, and the adsorption capacity of the suction cup 311 for the generator body 6 is enhanced, so that the generator body 6 is not easily slid off. The guiding plate 42 is also at the uppermost end of the guiding groove 211, and the louver 4 is in the closed state; S4. When the generator body 6 needs to be used, first connect the power supply to the box body 1, insert the power cord and data cable externally connected to the generator body 6 into the external terminal 12 to communicate with the generator body 6. Then, control the synchronous motor 5 to drive the bottom plate 2 to move up a certain distance. The rotating rod 34 disengages from the contact with the buffer assembly 8, and the second compression spring 35 presses the sliding plate 31 to move towards the bottom plate 2. At this time, the sliding plate 31 is not easily shaken, and a more stable working environment can be provided for the generator body 6. The guiding plate 42 stays in the middle section of the guiding groove 211, and the louver 4 is in the open state.

[0026] The above are only the preferred embodiments of the present invention, and do not impose any form of limitation on the present invention. Although the present invention has been disclosed above with the preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to the above-mentioned technical content within the scope of the technical solution of the present invention to make equivalent embodiments with equivalent changes. However, as long as the content does not depart from the technical solution of the present invention, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention still fall within the scope of the present invention.

Claims

1. A protection device for a multi-channel signal generator based on DDS, comprising a box body (1), and a box cover (11) is connected above the box body (1) through a hinge. It is characterized in that, Also includes: A bottom plate (2) is provided in the box body (1), a side groove (3) is fixedly connected to the top of the bottom plate (2), and a sliding plate (31) is slidably connected in the side groove (3); The generator body (6) is placed on the sliding plate (31), a clamping assembly (7) is fixedly connected to the sliding plate (31), and a second compression spring (35) is connected between the side groove (3) and the sliding plate (31); A fixed block (33) is fixedly connected below the sliding plate (31), a rotating rod (34) is rotatably connected to the fixed block (33), and a buffer assembly (8) is provided at the bottom of the box body (1); When the bottom plate (2) moves downward, the rotating rod (34) contacts the buffer assembly (8), and the buffer assembly (8) and the second compression spring (35) act together on the sliding plate (31) so that the sliding plate (31) is suspended in the air to form a buffer area that can float up and down; When the bottom plate (2) moves upward, the rotating rod (34) moves upward to break away from contact with the box body (1) and the buffer assembly (8), and the second compression spring (35) presses the sliding plate (31) to contact with the bottom plate (2).

2. The protection device for a multi-channel signal generator based on DDS according to claim 1, wherein, The clamping assembly (7) comprises a support plate (71), a clamping block (72), a connecting block (73) and an adjusting bolt (74); the support plate (71) is fixedly connected to the sliding plate (31); the support plate (71) and the connecting block (73) are fixedly connected; the adjusting bolt (74) is connected to the clamping block (72) via a thread; the adjusting bolt (74) and the connecting block (73) are rotatably connected; and the clamping block (72) and the support plate (71) are slidably connected.

3. The protection device for a multi-channel signal generator based on DDS according to claim 1, characterized in that, The buffer assembly (8) comprises a sliding stopper (81), a sliding rod (811), a first compression spring (82) and a stopper (83); the sliding rod (811) is fixedly connected to the sliding stopper (81); the sliding rod (811) is slidably connected to the stopper (83); the stopper (83) is fixedly connected to the box body (1); and the first compression spring (82) is connected between the stopper (83) and the sliding stopper (81).

4. A protection device for a multi-channel signal generator based on DDS according to claim 1, characterized in that A plurality of suction cups (311) are fixedly connected to the sliding plate (31), and the suction cups (311) are used to adsorb the bottom of the box body (1).

5. The protection device of a multi-channel signal generator based on DDS according to claim 4, characterized in that A plurality of air bags (32) are fixedly connected below the sliding plate (31), the positions of the air bags (32) and the suction cups (311) corresponding to each other and each air bag (32) is connected to a corresponding suction cup (311), and when the air bags (32) are restored from a compressed state, they absorb the air in the suction cups (311), thereby increasing the adsorption force of the suction cups (311) on the box body (1).

6. The protection device for a multi-channel signal generator based on DDS according to claim 1, characterized in that, A plurality of shutters (4) are rotatably connected to both sides of the box body (1), a support rod (41) is fixedly connected to the shutters (4), and a guide plate (42) is rotatably connected to the support rod (41).

7. The protection device for a multi-channel signal generator based on DDS according to claim 6, characterized in that, A guide block (21) is fixedly connected to the bottom plate (2). A guide groove (211) is formed in the guide block (21). The guide plate (42) is slidably connected to the guide groove (211). When the guide block (21) moves upward, the guide plate (42) is pushed upward and drives the louvers (4) to rotate and open.

8. The protection device of a multi-channel signal generator based on DDS according to claim 1, characterized in that, A support block (13) is fixedly connected to the box body (1). A synchronous motor (5) is fixedly connected to the bottom of the box body (1). The output end of the synchronous motor (5) is fixedly connected to a threaded rod (51). The threaded rod (51) is rotatably connected to the support block (13). The threaded rod (51) is connected to the bottom plate (2) by a thread.

9. The protection device for a multi-channel signal generator based on DDS according to claim 1, characterized in that, An external terminal (12) is fixedly connected to the box body (1). A connecting wire (121) is fixedly connected to the external terminal (12). The other end of the connecting wire (121) is inserted into the generator body (6).

10. A method for using a protection device for a multi-channel signal generator based on DDS, including the protection device for a multi-channel signal generator based on DDS according to any one of claims 1-9, characterized in that, The following steps are included: S1. Open the box cover (11) and control the bottom plate (2) to rise to the highest position, and place the generator body (6) on the sliding plate (31). S2. Rotate the adjusting bolt (74) to make the clamping block (72) clamp the generator body (6), and insert the connecting wire (121) into the generator body (6). S3. Control the bottom plate (2) to descend to the lowest position, and cover the box cover (11) for storage. S4. During use, control the bottom plate (2) to move upward by a certain distance, the louvers (4) automatically open, and insert the external signal wire and power wire into the external terminal (12).

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