A short-wave multi-functional antenna with automatic pitch angle adjustment

Abstract

The present invention relates to the technical field of antennas, and specifically to a short-wave multi-purpose antenna with automatic elevation angle adjustment, which includes an antenna branch pipe, an adjustment worm provided in the antenna branch pipe, an adjustment worm gear meshing with the adjustment worm, and an antenna part. The adjustment worm gear and the antenna part are fixedly connected. By rotating the adjustment worm, the adjustment worm gear is driven to drive the antenna part to perform elevation angle adjustment. The short-wave multi-purpose antenna of the present invention with automatic elevation angle adjustment can detect and automatically compensate for the problem that the bending of the antenna branch pipe caused by wind force leads to a change in the elevation angle of the antenna when in a strong wind environment and the antenna branch pipe is relatively long, thereby improving the directivity of the antenna under wind interference.

Description

Technical Field

[0001] The present invention relates to the technical field of antennas, and specifically to a short-wave multi-purpose antenna with automatic elevation angle adjustment. Background Technique

[0002] A short-wave antenna is a transmitting or receiving antenna operating in the short-wave band of 1 to 30 MHz. There are many types of short-wave antennas. Among them, the short-wave antenna arranged in a log-periodic manner can maintain good performance in a very wide frequency range due to the structure of the log-periodic antenna, and has relatively stable directivity, and signals can be concentrated in a specific direction for transmission and reception. However, in actual applications, the longer the antenna support rod is, the more likely it is to generate an arc under the influence of wind, which in turn increases the elevation angle on the windward side, resulting in a certain deviation in direction and affecting the antenna performance. Summary of the Invention

[0003] The purpose of the present invention is to provide a short-wave multi-purpose antenna with automatic elevation angle adjustment to solve the problems raised in the above background technique.

[0004] To achieve the above purpose, the present invention provides the following technical solution: A short-wave multi-purpose antenna with automatic elevation angle adjustment, including an antenna branch pipe, an adjustment worm arranged in the antenna branch pipe, an adjustment worm gear meshing with the adjustment worm, and an antenna part. The adjustment worm gear and the antenna part are fixedly connected. By rotating the adjustment worm, the adjustment worm gear is driven to drive the antenna part to perform elevation angle adjustment. An integration section, a base turntable, and a pressure sensor are also arranged in the antenna branch pipe;

[0005] The integration section is arranged below the adjustment worm. The pressure sensor is fixedly arranged between the integration section and the base turntable to detect the pressure change situation between the integration section and the base turntable;

[0006] Record the pressure value between the integration section and the base turntable when the antenna is in a windless environment. When the pressure value between the integration section and the base turntable changes beyond the set threshold range in a windy environment, the base turntable rotates to drive the integration section and the adjustment worm to rotate, so that the antenna performs corresponding elevation angle adjustment.

[0007] An internal cavity is opened inside the integration section. A partition convex ring is fixedly arranged on the inner wall of the internal cavity. A locking cover plug is arranged above the partition convex ring, and a lower push plate is arranged below the partition convex ring. Both the locking cover plug and the lower push plate are in airtight contact with the inner wall surface of the internal cavity.

[0008] A limiting square hole is penetrated upward through the top of the inner joint cavity, and a limiting square rod is inserted through the limiting square hole. The limiting square hole and the limiting square rod are in limiting cooperation, so that the limiting square rod can only expand and contract relative to the limiting square hole.

[0009] The upper part of the limiting square rod is fixedly installed coaxially with the adjusting worm, and the lower part of the limiting square rod is fixedly installed with the lock cover plug body.

[0010] A side wall cavity is provided in the integrated joint, a locking part is arranged in the side wall cavity, a locking outer groove is arranged on the surface of the lock cover plug body, and a part of the locking part is clamped into the locking outer groove to axially limit the lock cover plug body.

[0011] A part spring is arranged in the side wall cavity, and the part spring applies an elastic pressure to the locking part, so that the locking part has an elastic tendency to move into the locking outer groove.

[0012] A lifting spring is arranged below the push-down disc, and an upward elastic thrust is applied to the push-down disc through the lifting spring. An air leakage hole is penetrated outward through the bottom of the inner joint cavity.

[0013] Solid gunpowder is arranged inside the lock cover plug body, and an electric pin is connected to the solid gunpowder;

[0014] A power-receiving copper ring is embedded and installed on the outer surface of the integrated joint. An elastic contact shaft is arranged on the inner wall of the antenna branch pipe. The elastic contact shaft is in elastic extrusion contact with the power-receiving copper ring, and the power-receiving copper ring is slidably powered through the elastic contact shaft. The power-receiving copper ring is connected to the electric pin, and when the power-receiving copper ring is powered on, the solid gunpowder can be detonated through the electric pin.

[0015] A return extraction hole is penetrated through the separating convex ring. An outer sealing sleeve is fixedly arranged on the inner wall surface of the antenna branch pipe. The outer sealing sleeve is sleeved outside the integrated joint and is in airtight contact with the outer surface of the integrated joint. The inner cavity of the inner joint cavity is communicated with the outer sealing sleeve through the return extraction hole.

[0016] A normally closed air extraction pump is fixedly arranged in the antenna branch pipe. A pipe wall air path is arranged in the side wall of the antenna branch pipe. The normally closed air extraction pump is communicated with the outer sealing sleeve through the pipe wall air path.

[0017] A positioning hole is penetrated through the base turntable. A positioning insertion shaft is fixedly arranged at the bottom of the integrated joint. The positioning insertion shaft is inserted through the positioning hole in a limiting manner.

[0018] A turntable bottom shaft is fixedly arranged at the bottom of the base turntable. A limiting wall ring is fixedly arranged on the inner wall surface of the antenna branch pipe. The limiting wall ring is sleeved outside the turntable bottom shaft. A blocking ring is fixedly arranged on the turntable bottom shaft. The blocking ring clamps the limiting wall ring, so that the turntable bottom shaft is axially limited relative to the limiting wall ring.

[0019] A servo motor is fixedly arranged inside the antenna branch pipe. The motor shaft of the servo motor is in transmission connection with the turntable bottom shaft, and the turntable bottom shaft and the base turntable are driven to rotate by the servo motor.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0021] The present invention relates to a short-wave multi-purpose antenna with automatic pitch angle adjustment, which can detect and automatically compensate for the problem that the pitch angle of the antenna changes due to the bending of the antenna branch pipe caused by wind force in a strong wind environment and when the antenna branch pipe is long, so as to improve the directivity of the antenna under wind interference.

[0022] The present invention is applicable to the working conditions where the antenna branch pipe is long. Since the antenna branch pipe is long, it is inconvenient to maintain the antenna. Through the cooperation of structures such as an integrated section, a lock cover plug, a push-down disc and a normally closed air pump, etc., when foreign matters such as dust accumulation or snow covering occur on the antenna, the adjusting worm can be driven to extend a certain distance relative to the integrated section impactively, vibrate the antenna, shake off the surface attachments, and then reset so that the adjusting worm and the integrated section are relatively fixed, which can effectively reduce the maintenance frequency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0024] Figure 2 It is a schematic diagram of a three-dimensional half-section of the present invention.

[0025] Figure 3 It is Figure 2 The enlarged schematic diagram of area A in

[0026] Figure 4 It is Figure 3 The enlarged schematic diagram of area B in

[0027] Figure 5 It is Figure 3 The enlarged schematic diagram of area C in

[0028] Figure 6 It is the front view of the three-dimensional half-section of the present invention.

[0029] Figure 7 It is Figure 6 The enlarged schematic diagram of area D in

[0030] Figure 8 It is Figure 7Schematic diagram of the enlarged E area in the figure.

[0031] Figure 9 This is a schematic diagram of a three-dimensional half-section of another angle of the present invention.

[0032] Figure 10 It is Figure 9 Schematic diagram of the enlarged F area in the figure.

[0033] Figure 11 It is Figure 10 Schematic diagram of the enlarged G area in the figure.

[0034] In the figure: 1. Antenna branch pipe; 2. Adjusting worm; 3. Adjusting worm gear; 4. Antenna part; 5. Integrated section; 6. Base turntable; 7. Pressure sensor; 501. Internal section cavity; 502. Partition convex ring; 503. Lock cover plug body; 504. Lower push plate; 505. Limit square hole; 506. Limit square rod; 507. Side wall cavity; 508. Locking part; 509. Locking outer groove; 510. Elastic piece of the part; 511. Lifting spring; 512. Air vent hole; 513. Solid gunpowder; 514. Electric pin; 515. Power receiving copper ring; 516. Elastic contact shaft; 517. Return extraction hole; 518. Outer sealing sleeve; 519. Pipe wall air path; 520. Normally closed air pump; 601. Positioning hole; 602. Positioning insertion shaft; 603. Turntable bottom shaft; 604. Limit wall ring; 605. Blocking ring; 606. Servo motor; 301. Pitch support arm; 302. Clamping assembly; 303. Worm gear main shaft; 304. Outer side shaft plate. Specific embodiments

[0035] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0036] Please refer to Figures 1 to 11 , the present invention provides a technical solution: a short-wave multi-purpose antenna with automatic pitch angle adjustment, as Figure 2 and Figure 3 shown in, including an antenna branch pipe 1, an adjusting worm 2 arranged in the antenna branch pipe 1, an adjusting worm gear 3 meshed with the adjusting worm 2, and an antenna part 4. The adjusting worm gear 3 and the antenna part 4 are fixedly connected. By rotating the adjusting worm 2, the adjusting worm gear 3 is driven to drive the antenna part 4 to adjust the pitch angle.

[0037] As Figure 4 and Figure 5As shown in the figure, an integrated section 5, a base turntable 6, and a pressure sensor 7 are also provided in the antenna branch pipe 1; the pressure sensor 7 is a pressure sensing element in the prior art and can perform bidirectional sensing of pressure and tension. Under the action of pressure or tension, the pressure sensor 7 only produces microscopic axial deformation and will not cause obvious up-and-down movement of the adjusting worm 2, thereby avoiding antenna instability.

[0038] The integrated section 5 is arranged at the lower part of the adjusting worm 2, and the pressure sensor 7 is fixedly arranged between the integrated section 5 and the base turntable 6. The pressure change between the integrated section 5 and the base turntable 6 is detected through the pressure sensor 7; the pressure value between the integrated section 5 and the base turntable 6 is recorded in a windless environment; when the pressure value change between the integrated section 5 and the base turntable 6 exceeds the set threshold range in a windy environment, the base turntable 6 rotates to drive the integrated section 5 and the adjusting worm 2 to rotate, so that the antenna performs corresponding pitch angle adjustment.

[0039] As Figure 4 As shown in the figure, an internal cavity 501 is opened inside the integrated section 5. A partition convex ring 502 is fixedly arranged on the inner wall of the internal cavity 501. A locking cover plug 503 is arranged above the partition convex ring 502, and a lower push plate 504 is arranged below the partition convex ring 502. Both the locking cover plug 503 and the lower push plate 504 are in airtight contact with the inner wall surface of the internal cavity 501.

[0040] A limiting square hole 505 is opened upward through the top of the internal cavity 501. A limiting square rod 506 is inserted into the limiting square hole 505. The limiting square hole 505 and the limiting square rod 506 are in limiting cooperation, so that the limiting square rod 506 can only perform telescopic movement relative to the limiting square hole 505. The upper part of the limiting square rod 506 is fixedly installed coaxially with the adjusting worm 2, and the lower part of the limiting square rod 506 is fixedly installed with the locking cover plug 503.

[0041] A side wall cavity 507 is opened in the integrated section 5. A locking part 508 is arranged in the side wall cavity 507. A locking outer groove 509 is opened on the surface of the locking cover plug 503. A part of the locking part 508 is stuck into the locking outer groove 509 to perform axial limit on the locking cover plug 503.

[0042] A clamping part elastic piece 510 is arranged in the side wall cavity 507. The clamping part elastic piece 510 applies an elastic pressure to the locking part 508, so that the locking part 508 has an elastic tendency to move into the locking outer groove 509.

[0043] A lifting spring 511 is arranged below the lower push plate 504. An upward elastic thrust is applied to the lower push plate 504 through the lifting spring 511. An air leakage hole 512 is opened through the bottom of the internal cavity 501 to the outside, as Figure 4As shown, when the push-down plate 504 moves rapidly downward under the drive of explosion pressure, the gas below the push-down plate 504 is discharged to the outside atmosphere through the air vent holes 512, avoiding affecting the downward movement of the push-down plate 504.

[0044] Inside the lock cover plug body 503, there is solid gunpowder 513, and an electrical pin 514 is connected to the solid gunpowder 513;

[0045] On the outer surface of the integrated section 5, a power-receiving copper ring 515 is embedded and installed. On the inner wall of the antenna branch pipe 1, there is an elastic contact shaft 516. The elastic contact shaft 516 is in elastic extrusion contact with the power-receiving copper ring 515, and the power-receiving copper ring 515 is slidably powered through the elastic contact shaft 516. The power-receiving copper ring 515 is connected to the electrical pin 514. When the power-receiving copper ring 515 is energized, the solid gunpowder 513 can be detonated through the electrical pin 514.

[0046] In the separating convex ring 502, there is a return extraction hole 517 running through. On the inner wall surface of the antenna branch pipe 1, an outer seal sleeve 518 is fixedly arranged. The outer seal sleeve 518 is sleeved outside the integrated section 5 and is in airtight contact with the outer surface of the integrated section 5. The inner cavity of the inner section cavity 501 is communicated with the outer seal sleeve 518 through the return extraction hole 517.

[0047] In the antenna branch pipe 1, a normally closed air extraction pump 520 is fixedly arranged. In the side wall of the antenna branch pipe 1, there is a pipe wall air path 519. The normally closed air extraction pump 520 is communicated with the outer seal sleeve 518 through the pipe wall air path 519. The normally closed air extraction pump 520 is in a normally closed state in the non-working state, that is, gas cannot flow in and out through the normally closed air extraction pump 520, so that the pressure generated by the solid gunpowder 513 will not leak out through the return extraction hole 517.

[0048] On the base turntable 6, there is a positioning hole 601 running through. At the bottom of the integrated section 5, a positioning insertion shaft 602 is fixedly arranged, and the positioning insertion shaft 602 is inserted through the positioning hole 601 with a limit. At the bottom of the base turntable 6, a turntable bottom shaft 603 is fixedly arranged. On the inner wall surface of the antenna branch pipe 1, a limit wall ring 604 is fixedly arranged. The limit wall ring 604 is sleeved outside the turntable bottom shaft 603. On the turntable bottom shaft 603, a blocking ring 605 is fixedly arranged, and the blocking ring 605 clamps the limit wall ring 604, so that the turntable bottom shaft 603 is axially limited relative to the limit wall ring 604. Inside the antenna branch pipe 1, a servo motor 606 is fixedly arranged. The motor shaft of the servo motor 606 is in transmission connection with the turntable bottom shaft 603, and the turntable bottom shaft 603 and the base turntable 6 are driven to rotate through the servo motor 606.

[0049] As Figure 2 and Figure 3As shown in the figure, a pitching support arm 301 is integrally and fixedly arranged on the adjusting worm gear 3. A clamping assembly 302 is fixedly arranged on the pitching support arm 301. The antenna part 4 arranged in a log-periodic layout is clamped and fixed by the clamping assembly 302. When the adjusting worm gear 3 rotates, the pitching angle of the antenna part 4 will change.

[0050] An outer shaft plate 304 is fixedly arranged outside the antenna branch pipe 1. A worm gear main shaft 303 is fixedly arranged in the outer shaft plate 304. As Figure 3 shown in the figure, the worm gear main shaft 303 passes through the center position of the adjusting worm gear 3.

[0051] When the present invention is in use, first record the pressure value detected by the pressure sensor 7 under the condition of no wind after the antenna is installed.

[0052] When strong wind acts on the antenna part 4, it will cause a certain bending of the antenna branch pipe 1. Since the signal emitted by the antenna part 4 is distributed in a fan shape in a directional manner, when the wind force perpendicular to the length direction of the clamping assembly 302 on the horizontal plane causes the antenna branch pipe 1 to bend, it will not cause an obvious impact on the signal of the antenna part 4.

[0053] On the horizontal plane, when the wind force parallel to the length direction of the clamping assembly 302 causes the antenna branch pipe 1 to bend, it will cause a large change in the pitching angle of the antenna part 4, and the change in the pitching angle has a greater impact on the signal. Combining Figure 2 and Figure 3 shown in the figure, when the antenna part 4 is subjected to the wind force parallel to the length direction of the clamping assembly 302 on the horizontal plane, it will generate a rotational driving force on the adjusting worm gear 3. Since the adjusting worm gear 3 and the adjusting worm 2 are self-locked and matched with each other, the rotational driving force of the adjusting worm gear 3 acts on the adjusting worm 2, causing the adjusting worm 2 to generate an axial lifting driving force.

[0054] Further combining Figure 4 and Figure 5 shown in the figure, for the convenience of understanding, the adjusting worm 2 and the integrated section 5 can be regarded as an integrally fixed structure for the time being. The lifting pressure conducted by the adjusting worm 2 will directly act on the pressure sensor 7 through the integrated section 5. Since the base turntable 6 can only rotate and cannot move axially, the pressure sensor 7 can detect the change in the lifting pressure received by the adjusting worm 2 and compare it with the pressure value recorded under the condition of no wind. Taking Figure 2 shown in the figure as an example, assuming that the wind blows horizontally from the right to the left, the pressure generated by the wind force acting on the antenna part 4 will cause the top of the antenna branch pipe 1 to bend to the left. At this time, the right side of the antenna part 4 tilts up. Further referring to Figure 3, at this time, the adjusting worm wheel 3 has a driving force for counterclockwise rotation, so that the adjusting worm 2 has an upward moving pressure. Through the conduction of the integrated joint 5, the pressure value detected by the pressure sensor 7 decreases. After exceeding the set threshold, the base turntable 6 is driven to rotate by the servo motor 606, driving the integrated joint 5 and the adjusting worm 2 to rotate, so that the adjusting worm wheel 3 rotates clockwise, and the pitch angle of the antenna part 4 is pulled back.

[0055] Due to factors such as the different lengths of the antenna branch pipes 1 and the different elastic coefficients of the materials, etc., the adjustment coefficient of the pitch angle will be affected. Therefore, in specific applications, it needs to be determined in combination with the actual test according to factors such as the elastic coefficient of the material adopted by the antenna branch pipe 1 and the set length.

[0056] The antenna in the present invention mainly faces the working conditions where the antenna branch pipe 1 is long and the antenna arrangement is high. In such working conditions, it is inconvenient to clean and maintain the antenna part 4. When the surface of the antenna part 4 is covered with dust or snow, it is equivalent to adding a layer of medium between the antenna radiator and the surrounding space. This layer of medium will scatter and absorb the electromagnetic waves emitted by the antenna, increasing the energy loss during the transmission of the electromagnetic waves, thereby reducing the radiation efficiency of the antenna.

[0057] The present invention can achieve automatic cleaning, specifically as Figure 4 and Figure 8 shown, through the sliding contact between the elastic contact shaft 516 and the current receiving copper ring 515, the electrical pin 514 is powered, and the solid gunpowder 513 is detonated; the pressure generated by the explosion of the solid gunpowder 513 acts in the sealed cavity formed by the cooperation of the lock cover plug body 503, the partition convex ring 502 and the lower push plate 504. Since the lock cover plug body 503 is locked, the pressure first drives the lower push plate 504 to move downward. When the lower push plate 504 moves downward, by squeezing and contacting with the locking part 508, the locking part 508 moves to both sides. At this time, the locking part 508 moves out of the locking outer groove 509, unlocking the lock cover plug body 503. After the lock cover plug body 503 is unlocked, the pressure continues to act on the lock cover plug body 503, making the lock cover plug body 503 move upward, driving the adjusting worm 2 to move upward quickly through the limit square rod 506, as Figure 3 shown, when the adjusting worm 2 moves upward impactively for a short distance, it will cause the adjusting worm wheel 3 to rotate impactively for a while. Manifested on the antenna part 4, it will cause the antenna part 4 to vibrate strongly and deflect by a certain angle. Thus, the coverings on the antenna part 4 are removed by vibration. Since the antenna part 4 will deflect by a certain angle, it will affect the signal. When removing the coverings, an idle period needs to be selected. In the above process, the solid gunpowder 513 realizes two-stage driving through explosion. Therefore, the solid gunpowder 513 adopts a relatively mild gunpowder to extend the explosion pressure release time.

[0058] After the above is completed, the normally-closed air extraction pump 520 is started. Through the air path on the pipe wall 519 and the outer sealing sleeve 518, the return extraction hole 517 performs negative pressure suction. When the downward push plate 504 moves upward in place, the negative pressure acts on the lock cover plug body 503, causing the lock cover plug body 503 to slowly move downward for reset. Since the locking part 508 has an elastic tendency to move towards the locking outer groove 509 under the elastic pressure of the part elastic piece 510, when the locking outer groove 509 is reset to the initial height, the locking part 508 will be reinserted into the locking outer groove 509, locking the lock cover plug body 503 relative to the integrated section 5. At this time, the adjusting worm 2 and the integrated section 5 can be regarded as an integral fixed structure. After the structure is reset, the deflection of the antenna part 4 will also be synchronously reset.

[0059] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A short-wave multi-purpose antenna with automatic pitch angle adjustment, comprising an antenna branch pipe, an adjustment worm arranged in the antenna branch pipe, an adjustment worm gear meshing with the adjustment worm, and an antenna part. The adjustment worm gear and the antenna part are fixedly connected. By rotating the adjustment worm, the adjustment worm gear is driven to drive the antenna part to perform pitch angle adjustment, and it is characterized in that: An integrated section, a base turntable and a pressure sensor are also arranged in the antenna branch pipe; The integrated section is arranged at the lower part of the adjusting worm, and the pressure sensor is fixedly arranged between the integrated section and the base turntable, and the pressure change between the integrated section and the base turntable is detected by the pressure sensor; Record the pressure value between the integrated section and the base turntable when the antenna is in a windless environment; when the pressure value between the integrated section and the base turntable changes beyond the set threshold range in a windy environment, the base turntable rotates to drive the integrated section and the adjusting worm to rotate, so that the antenna performs corresponding pitch angle adjustment; The lifting pressure conducted by the adjusting worm acts directly on the pressure sensor through the integrated section. An internal cavity is opened inside the integrated section. A partition convex ring is fixedly arranged on the inner wall of the internal cavity. A locking cover plug is arranged above the partition convex ring. A limiting square hole is vertically opened upward at the top of the internal cavity. A limiting square rod is inserted in the limiting square hole. The limiting square hole and the limiting square rod are in limiting cooperation, so that the limiting square rod can only stretch and move relative to the limiting square hole. The upper part of the limiting square rod is fixedly installed coaxially with the adjusting worm, and the lower part of the limiting square rod is fixedly installed with the locking cover plug.

2. The short-wave multi-functional antenna with automatic pitch angle adjustment according to claim 1, characterized in that: A lower push plate is arranged below the partition convex ring, and both the locking cover plug and the lower push plate are in airtight contact with the inner wall surface of the internal cavity.

3. The short-wave multi-purpose antenna with automatic pitch angle adjustment according to claim 2, characterized in that: A side wall cavity is opened in the integrated section, and a locking part is arranged in the side wall cavity. A locking outer groove is opened on the surface of the locking cover plug, and a part of the locking part is inserted into the locking outer groove to axially limit the locking cover plug.

4. The short-wave multi-functional antenna with automatic pitch angle adjustment according to claim 3, characterized in that: A clamping piece elastic sheet is arranged in the side wall cavity, and the clamping piece elastic sheet applies elastic pressure to the locking part, so that the locking part has an elastic tendency to move into the locking outer groove.

5. A short-wave multi-purpose antenna with automatic pitch angle adjustment according to claim 2, characterized in that: A lifting spring is arranged below the lower push plate, and an upward elastic thrust is applied to the lower push plate through the lifting spring. An air leakage hole is opened through the bottom of the internal cavity.

6. The short-wave multi-purpose antenna with automatic pitch angle adjustment according to claim 4, characterized in that: Solid gunpowder is arranged inside the locking cover plug, and electric pins are connected to the solid gunpowder; A powered copper ring is embedded and installed on the outer surface of the integrated section, and an elastic contact shaft is arranged on the inner wall of the antenna branch pipe. The elastic contact shaft is in elastic pressing contact with the powered copper ring, and the powered copper ring is slidably powered by the elastic contact shaft. The powered copper ring is connected to the electric pin, and when the powered copper ring is electrified, the solid gunpowder can be detonated through the electric pin.

7. The short-wave multi-purpose antenna with automatic pitch angle adjustment according to claim 6, characterized in that: A return extraction hole is penetrated through the partition convex ring. An outer sealing sleeve is fixedly arranged on the inner wall surface of the antenna branch pipe. The outer sealing sleeve is sleeved outside the integrated section and is in airtight contact with the outer surface of the integrated section. The inner cavity of the internal cavity is communicated with the outer sealing sleeve through the return extraction hole.

8. A short-wave multi-functional antenna with automatic pitch angle adjustment according to claim 7, characterized in that: A normally closed air pump is fixedly arranged in the antenna branch pipe, and a pipe wall air path is opened in the side wall of the antenna branch pipe. The normally closed air pump is communicated with the outer sealing sleeve through the pipe wall air path.

9. A short-wave multi-functional antenna with automatic pitch angle adjustment according to claim 1, characterized in that: A positioning hole is penetrated through the base turntable, and a positioning insertion shaft is fixedly arranged at the bottom of the integrated section. The positioning insertion shaft is inserted through the positioning hole in a limited way.

10. A short-wave multi-functional antenna with automatic pitch angle adjustment according to claim 1, characterized in that: A turntable bottom shaft is fixedly arranged at the bottom of the base turntable. A limiting wall ring is fixedly arranged on the inner wall surface of the antenna branch pipe. The limiting wall ring is sleeved outside the turntable bottom shaft. A blocking ring is fixedly arranged on the turntable bottom shaft. The blocking ring clamps the limiting wall ring, so that the turntable bottom shaft is axially limited relative to the limiting wall ring.

11. A short-wave multi-purpose antenna with automatic pitch angle adjustment according to claim 10, characterized in that: A servo motor is fixedly arranged inside the antenna branch pipe. The motor shaft of the servo motor is in transmission connection with the turntable bottom shaft. The turntable bottom shaft and the base turntable are driven to rotate by the servo motor.

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