Large-size spiral deployable antenna

Abstract

The invention discloses a large-size spiral deployable antenna, and relates to the technical field of spiral antennas. Comprising a main rod and an auxiliary rod, a through hole and a plurality of movable holes are formed in the outer wall of the top of the main rod, a fixing ring is fixedly arranged on the top of the inner wall of the main rod, and a plurality of U-shaped seats are fixedly arranged on the outer wall of the bottom of the fixing ring. The control ring is pressed to drive the supporting rod to move downwards, the supporting rod abuts against the surface of the limiting clamping plate downwards, the limiting clamping plate is stressed to rotate downwards, the limiting clamping plate is separated from the auxiliary rod, the auxiliary rod can be adjusted upwards or downwards, after adjustment is completed, the control ring is loosened, and the control ring and the supporting rod reset upwards under the elastic effect of the compression spring. After the stress on the limiting clamping plate disappears, the limiting clamping plate rotates upwards under the elastic action of the torsion spring, the auxiliary rod is clamped and fixed again, the folding and unfolding of the large-size helical antenna can be realized through the arranged adjustable auxiliary rod, the weight and the size of the large-size helical antenna are reduced, and the installation space of the helical antenna is greatly reduced.

Description

Technical Field

[0001] The invention relates to the technical field of helical antennas, and in particular to a large-size helical deployable antenna. Background Art

[0002] A helical antenna is an antenna with a helical shape. It is composed of a metal helical wire with good conductivity, and is usually fed by a coaxial cable. The core wire of the coaxial cable is connected to one end of the helical wire, and the outer conductor of the coaxial cable is connected to a grounded metal mesh (or plate). The radiation direction of a helical antenna is related to the circumference of the helical wire. When the circumference of the helical wire is much smaller than a wavelength, the direction of the strongest radiation is perpendicular to the helical axis; when the circumference of the helical wire is on the order of a wavelength, the strongest radiation appears in the direction of the helical axis.

[0003] After searching, the publication number is: CN111129721A, which discloses a deployable helical antenna, including an antenna base, a helical antenna, a plurality of inter-arm support devices, a pitch control device and an antenna cover. The helical antenna includes a plurality of spiral radiating arms, and the plurality of inter-arm support devices are axially distributed on the inner circumference of the helical antenna to ensure the lateral spacing of each radiating arm; the pitch control device is arranged between the antenna cover and the inter-arm support device, the adjacent inter-arm support devices, and the inter-arm support device and the antenna base. The pitch control device includes a plurality of flexible support wires uniformly distributed around the helical antenna along the circumferential direction. The pitch control device is used to ensure the longitudinal pitch of the helical antenna. The deployable helical antenna provided by the present invention utilizes the restoring force of the radiating arm itself and the interaction between the inter-arm support device and the pitch control device to realize the folding and unfolding of the large-size helical antenna, thereby reducing the weight and volume of the large-size helical antenna, thereby greatly reducing the installation space of the helical antenna.

[0004] In the above scheme, only the folding and unfolding adjustment of the helical antenna is considered through the pitch control device, but it is not considered that the helical antenna itself has a certain elasticity. When there is no external traction during the adjustment of the helical antenna, the helical antenna will be offset and deformed. When adjusting the helical antenna, the adjustment distance of the helical antenna cannot be controlled, and only a single folding and unfolding can be performed. In addition, when the existing helical antenna fails, the two ends of the helical antenna are directly fixed, which is inconvenient to repair and replace the helical antenna. Summary of the invention

[0005] The purpose of the present invention is to provide a large-size spiral deployable antenna, which solves the technical problems raised in the background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a large-size spiral expandable antenna, comprising a main rod and a secondary rod, the top outer wall of the main rod is provided with a through hole and a plurality of movable holes, the top of the inner wall of the main rod is fixedly provided with a fixing ring, the bottom outer wall of the fixing ring is fixedly provided with a plurality of U-shaped seats, the inner wall of each of the U-shaped seats is fixedly provided with a fixing rod, the outer wall of each of the fixing rods is rotatably provided with an axle rod, the outer wall of each of the axle rods is fixedly provided with a limiting splint, the outer wall of each of the limiting splints is provided with a plate groove, the outer wall of each of the axle rods is provided with a torsion spring, one end of each of the torsion springs is fixedly connected to the outer wall of the corresponding limiting splint, the other end of each of the torsion springs is fixedly connected to the inner wall of the corresponding U-shaped seat, the inner wall of each of the movable holes is plugged with a support rod, and one end of each of the support rods located outside the main rod is fixedly connected to the same control ring, and a plurality of compression springs are fixedly provided between the control ring and the main rod.

[0007] Preferably, a mounting seat is fixedly provided on the bottom outer wall of the main rod, a placement groove is provided on the top outer wall of the mounting seat, a movable groove is provided on the inner wall of the placement groove, seat holes are provided on the outer walls on both sides of the mounting seat, a connecting rod is movably inserted into the inner wall of each seat hole, a control button is fixedly provided on the end of each connecting rod away from the mounting seat, an elastic spring is fixedly provided between each control button and the mounting seat, an arc-shaped clamping plate is fixedly provided on the outer wall of the other end of each connecting rod, and an arc-shaped clamping plate is fixedly provided on the inner wall of each arc-shaped clamping plate.

[0008] Preferably, a rod groove is formed on the top outer wall of the auxiliary rod, a buffer spring is fixedly provided on the bottom of the inner wall of the rod groove, a buffer plate is fixedly provided on the outer wall of the other end of the buffer spring, the outer wall of the buffer plate is slidably connected to the inner wall of the rod groove, and the inner wall of the rod groove is threadedly connected with a fixing bolt.

[0009] Preferably, a lower base is inserted into the placement slot, two slots are provided on the outer wall of the lower base, a helical antenna is fixedly provided on the top outer wall of the lower base, and an upper base is fixedly provided on the outer wall of the other end of the helical antenna.

[0010] Preferably, a first limiting ring and a second limiting ring are fixedly provided on the outer wall of the auxiliary rod, and the first limiting ring is located above the second limiting ring.

[0011] Preferably, a rubber pad is fixedly provided on the outer wall of one side of each limiting clamp away from the corresponding U-shaped seat, the movable holes correspond one-to-one with the limiting clamps, the support rods correspond one-to-one with the compression springs, and each support rod is located inside the corresponding compression spring.

[0012] Preferably, each of the connecting rods is located inside a corresponding elastic spring, and each of the arc-shaped clamping plates is located inside a movable groove.

[0013] Preferably, the card slots correspond to the arc-shaped clamping plates one by one, and the arc-shaped clamping plates are plugged into the card slots.

[0014] Preferably, a first set of holes is formed on the top outer wall of the lower base, the diameter of the first set of holes is the same as the diameter of the main rod, the inner wall of the first set of holes is plugged into the main rod, and a second set of holes is formed on the outer wall of the upper base, the diameter of the second set of holes is the same as the diameter of the auxiliary rod, and the inner wall of the second set of holes is plugged into the auxiliary rod.

[0015] Preferably, the upper base is located between the fixing bolt and the first limiting ring, the diameter of the fixing bolt is larger than the diameter of the second set of holes, and tightening the fixing bolt can be used to limit the upper base.

[0016] Compared with the related art, the large-size spiral deployable antenna provided by the present invention has the following beneficial effects: 1. The present invention provides a large-size spiral deployable antenna, which drives the support rod to move downward by pressing the control ring. The support rod moves downward and contacts the surface of a limit clamp. The limit clamp is forced to rotate downward, and the rubber pad of the limit clamp is separated from the auxiliary rod. The auxiliary rod is adjusted upward or downward. After the adjustment is completed, the control ring is released, and the control ring and the support rod are reset upward under the elastic action of a compression spring. After the force on the limit clamp disappears, the limit clamp rotates upward under the elastic action of a torsion spring, and the auxiliary rod is clamped and fixed again. The large-size spiral antenna can be folded and unfolded by setting an adjustable auxiliary rod, which reduces the weight and volume of the large-size spiral antenna, thereby greatly reducing the installation space of the spiral antenna.

[0017] 2. The present invention provides a large-size spiral expandable antenna. By pulling outward the control buttons on both sides of the mounting base, the control buttons drive the connecting rod to extend outward, and at the same time drive the arc-shaped clamping plate to slide inside the movable groove, and the arc-shaped clamping plate is disengaged from the inside of the clamping groove opened on the outer wall of the base. At the same time, the fixing bolts on the top of the auxiliary rod are unscrewed, and the upper base and the lower base are pulled upward to remove the spiral antenna, so that the spiral antenna can be replaced conveniently. At the same time, a buffer spring and a buffer plate are arranged inside the rod groove. When the fixing bolt is screwed into the rod groove, the buffer plate and the buffer spring are compressed by force, and at the same time, the fixing bolt is subjected to the reaction force of the buffer spring, which effectively prevents the fixing bolt from loosening. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is an exploded view of a part of the structure of the helical antenna of the present invention; Figure 3 It is an exploded view of the main rod structure of the present invention; Figure 4 It is a partial structural cross-sectional view of the main rod of the present invention; Figure 5 It is a partial structural cross-sectional view of the auxiliary rod of the present invention; Figure 6 For the present invention Figure 4 A magnified view of the structure at center; Figure 7 For the present invention Figure 6 A magnified view of the structure at B in the middle; Figure 8 For the present invention Figure 2 A magnified view of the structure at C in the middle; Fig. 9 For the present invention Figure 2 A magnified view of the structure at D in the middle; Fig.10 For the present invention Figure 1 Enlarged view of the structure at E in the middle; Fig.11 For the present invention Figure 5 Enlarged view of the structure at F in the middle.

[0019] In the figure: 1. main rod; 101. through hole; 102. fixing ring; 103. U-shaped seat; 104. fixing rod; 105. shaft rod; 106. limit clamp; 107. plate groove; 108. torsion spring; 109. rubber pad; 110. movable hole; 111. compression spring; 112. support rod; 113. control ring; 2. auxiliary rod; 201. rod groove; 202. buffer spring; 203. buffer plate; 20 4. First limiting ring; 205. Second limiting ring; 3. Lower base; 301. First set of holes; 302. Card slot; 4. Upper base; 401. Second set of holes; 5. Helical antenna; 6. Mounting seat; 601. Seat hole; 602. Placement slot; 603. Movable slot; 604. Connecting rod; 605. Elastic spring; 606. Control button; 607. Arc-shaped splint; 608. Arc-shaped card plate; 7. Fixing bolt. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only 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 ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0021] Embodiment 1:

[0022] See also Figure 1 - Figure 7The present invention provides a technical solution: a large-size spiral deployable antenna, comprising a main rod 1 and a secondary rod 2, the top outer wall of the main rod 1 is provided with a through hole 101 and a plurality of movable holes 110, the top of the inner wall of the main rod 1 is fixedly provided with a fixing ring 102, the bottom outer wall of the fixing ring 102 is fixedly provided with a plurality of U-shaped seats 103, the inner wall of each U-shaped seat 103 is fixedly provided with a fixing rod 104, the outer wall of each fixing rod 104 is rotatably provided with an axle rod 105, the outer wall of each axle rod 105 is fixedly provided with a limiting clamping plate 106, the outer wall of each limiting clamping plate 106 is provided with a plate groove 107, the outer wall of each axle rod 105 is provided with a torsion spring 108, and the One end of each torsion spring 108 is fixedly connected to the outer wall of the corresponding limit clamp 106, and the other end of each torsion spring 108 is fixedly connected to the inner wall of the corresponding U-shaped seat 103. A support rod 112 is inserted into the inner wall of each movable hole 110, and each support rod 112 is fixedly connected to the same control ring 113 at one end outside the main rod 1, and a plurality of compression springs 111 are fixedly arranged between the control ring 113 and the main rod 1. A rubber pad 109 is fixedly arranged on the outer wall of each limit clamp 106 away from the corresponding U-shaped seat 103. The movable holes 110 correspond one-to-one to the limit clamps 106, and the support rods 112 correspond one-to-one to the compression springs 111. Each support rod 112 is located inside the corresponding compression spring 111.

[0023] In the present embodiment, the helical antenna 5 is composed of a main rod 1 and a sub-rod 2, a fixing ring 102 is arranged on the top of the inner wall of the main rod 1, a plurality of U-shaped seats 103 are fixedly arranged on the outer wall of the bottom of the fixing ring 102, a fixing rod 104 is arranged on the inner wall of the U-shaped seat 103, an axle rod 105 is rotatably arranged on the outer wall of the fixing rod 104, a limiting clamping plate 106 is fixedly arranged on the outer wall of the axle rod 105, a plate groove 107 is opened on the outer wall of the limiting clamping plate 106, a torsion spring 108 is arranged on the outer wall of the axle rod 105 and inside the plate groove 107, one end of the torsion spring 108 is fixedly connected to the outer wall of the limiting clamping plate 106, and the other end of the torsion spring 108 is fixedly connected to the inner wall of the U-shaped seat 103, the torsion spring 108 is initially in a stretched state, and the limiting clamping plate 106 is subjected to the torsion spring 1 08's pulling force rotates upward, and the rubber pad 109 at the end of the limiting clamp 106 is in full contact with the auxiliary rod 2. Multiple limiting clamps 106 clamp the auxiliary rod 2 to ensure the stability of the auxiliary rod 2. When the helical antenna 5 needs to be adjusted, the control ring 113 is pressed to drive the support rod 112 to move downward. The support rod 112 moves downward and contacts the surface of the limiting clamp 106. The limiting clamp 106 is forced to rotate downward, and the rubber pad 109 of the limiting clamp 106 is separated from the auxiliary rod 2. The auxiliary rod 2 is adjusted upward or downward. After the adjustment is completed, the control ring 113 is released. The control ring 113 and the support rod 112 are reset upward under the elastic action of the compression spring 111. After the force on the limiting clamp 106 disappears, it rotates upward under the elastic action of the torsion spring 108 to clamp and fix the auxiliary rod 2 again.

[0024] Embodiment 2:

[0025] See also Figure 1 - Fig.11As shown, on the basis of the first embodiment, the present invention provides a technical solution: a mounting seat 6 is fixedly provided on the bottom outer wall of the main rod 1, a placement groove 602 is provided on the top outer wall of the mounting seat 6, a movable groove 603 is provided on the inner wall of the placement groove 602, seat holes 601 are provided on both sides of the outer wall of the mounting seat 6, a connecting rod 604 is movably inserted into the inner wall of each seat hole 601, a control button 606 is fixedly provided on one end of each connecting rod 604 away from the mounting seat 6, and an elastic spring 606 is fixedly provided between each control button 606 and the mounting seat 6. 5. The outer wall of the other end of each connecting rod 604 is fixedly provided with an arc-shaped clamping plate 607, and the inner wall of each arc-shaped clamping plate 607 is fixedly provided with an arc-shaped clamping plate 608. The top outer wall of the auxiliary rod 2 is provided with a rod groove 201, and a buffer spring 202 is fixedly provided at the bottom of the inner wall of the rod groove 201. A buffer plate 203 is fixedly provided on the outer wall of the other end of the buffer spring 202. The outer wall of the buffer plate 203 is slidably connected with the inner wall of the rod groove 201. The inner wall of the rod groove 201 is threadedly connected with a fixing bolt 7. The lower base 3 is inserted into the interior of the placement groove 602. The lower base The outer wall of the seat 3 is provided with two card slots 302, the top outer wall of the lower base 3 is fixedly provided with a helical antenna 5, the outer wall of the other end of the helical antenna 5 is fixedly provided with an upper base 4, the outer wall of the auxiliary rod 2 is fixedly provided with a first limiting ring 204 and a second limiting ring 205, the first limiting ring 204 is located above the second limiting ring 205, each connecting rod 604 is respectively located inside the corresponding elastic spring 605, each arc-shaped clamping plate 607 is located inside the movable groove 603, the card slots 302 correspond to the arc-shaped clamping plates 607 one by one, and the arc-shaped clamping plates 608 correspond to the clamping plates 609. The groove 302 is plugged in, and a first set of holes 301 is opened on the top outer wall of the lower base 3. The diameter of the first set of holes 301 is the same as the diameter of the main rod 1, and the inner wall of the first set of holes 301 is plugged in with the main rod 1. A second set of holes 401 is opened on the outer wall of the upper base 4. The diameter of the second set of holes 401 is the same as the diameter of the auxiliary rod 2, and the inner wall of the second set of holes 401 is plugged in with the auxiliary rod 2. The upper base 4 is located between the fixing bolt 7 and the first limiting ring 204. The diameter of the fixing bolt 7 is larger than the diameter of the second set of holes 401. Tightening the fixing bolt 7 can be used to limit the upper base 4.

[0026] In this embodiment, when the helical antenna 5 fails, the control buttons 606 on both sides of the mounting seat 6 are pulled outward, and the control buttons 606 drive the connecting rod 604 to extend outward, and at the same time drive the arc clamping plate 607 to slide inside the movable groove 603, and the arc clamping plate 608 is disengaged from the inside of the clamping groove 302 provided on the outer wall of the lower base 3. At the same time, the fixing bolt 7 on the top of the auxiliary rod 2 is unscrewed, and the upper base 4 and the lower base 3 are pulled upward to remove the helical antenna 5. After the replacement is completed, the lower base 3 is first sleeved on the outer wall of the main rod 1, and pulled downward until the lower base 3 falls into the placement groove 602, and the position of the lower base 3 is adjusted by rotation so that the clamping groove 302 corresponds to the arc clamping plate 608. Loosen the control buttons 606 on both sides, and the arc-shaped clamping plate 608 is reset and clamped into the inside of the clamping slot 302 under the elastic action of the elastic spring 605, so that the upper base 4 is sleeved on the outer wall of the auxiliary rod 2, and it is pulled downward and falls on the first limiting ring 204, and the fixing bolt 7 is screwed into the rod groove 201 to limit the upper base 4 and ensure the stability of the upper base 4 and the lower base 3. At the same time, a buffer spring 202 and a buffer plate 203 are arranged inside the rod groove 201. When the fixing bolt 7 is screwed into the rod groove 201, the buffer plate 203 and the buffer spring 202 are compressed, and the fixing bolt 7 is subjected to the reaction force of the buffer spring 202, which effectively prevents the fixing bolt 7 from loosening.

[0027] Working principle: The helical antenna 5 is composed of a main rod 1 and a sub-rod 2. A fixing ring 102 is arranged on the top of the inner wall of the main rod 1. A plurality of U-shaped seats 103 are fixedly arranged on the outer wall of the bottom of the fixing ring 102. A fixing rod 104 is arranged on the inner wall of the U-shaped seat 103. A shaft rod 105 is rotatably arranged on the outer wall of the fixing rod 104. A limiting clamp 106 is fixedly arranged on the outer wall of the shaft rod 105. A plate groove 107 is opened on the outer wall of the limiting clamp 106. A torsion spring 108 is arranged on the outer wall of the shaft rod 105 and inside the plate groove 107. One end of the torsion spring 108 is fixedly connected to the outer wall of the limiting clamp 106, and the other end of the torsion spring 108 is fixedly connected to the inner wall of the U-shaped seat 103. The torsion spring 108 is arranged 8 is initially in a stretched state, and the limit clamp 106 rotates upward under the pulling force of the torsion spring 108, and the rubber pad 109 at the end of the limit clamp 106 is in full contact with the auxiliary rod 2. Multiple limit clamps 106 clamp the auxiliary rod 2 to ensure the stability of the auxiliary rod 2. When the helical antenna 5 needs to be adjusted, the support rod 112 is driven to move downward by pressing the control ring 113. The support rod 112 moves downward and contacts the surface of the limit clamp 106. The limit clamp 106 is forced to rotate downward, and the rubber pad 109 of the limit clamp 106 is separated from the auxiliary rod 2. The auxiliary rod 2 is adjusted upward or downward. After the adjustment is completed, the control ring 113 is released, and the control ring 113 and the support rod 112 return upward under the elastic action of the compression spring 111. After the force on the limit clamping plate 106 disappears, it rotates upward under the elastic action of the torsion spring 108 to clamp and fix the auxiliary rod 2 again. When the helical antenna 5 fails, the control buttons 606 on both sides of the mounting seat 6 are pulled outward, and the control buttons 606 drive the connecting rod 604 to extend outward, and at the same time drive the arc clamping plate 607 to slide inside the movable groove 603, and the arc clamping plate 608 is disengaged from the inside of the clamping groove 302 opened on the outer wall of the lower base 3. At the same time, the fixing bolt 7 on the top of the auxiliary rod 2 is unscrewed, and the upper base 4 and the lower base 3 are pulled upward to remove the helical antenna 5. After the replacement is completed, the lower base 3 is first sleeved on the outer wall of the main rod 1, and pulled downward until the lower base 3 falls into the placement groove 602, and the position of the lower base 3 is adjusted by rotating. The slot 302 is arranged to correspond to the arc-shaped card plate 608, and the control buttons 606 on both sides are released. The arc-shaped card plate 608 is reset and carded into the slot 302 under the elastic action of the elastic spring 605, and the upper base 4 is sleeved on the outer wall of the auxiliary rod 2, and pulled downward to fall on the first limiting ring 204, and the fixing bolt 7 is screwed into the rod groove 201 to limit the upper base 4 to ensure the stability of the upper base 4 and the lower base 3. At the same time, a buffer spring 202 and a buffer plate 203 are arranged inside the rod groove 201. When the fixing bolt 7 is screwed into the rod groove 201, the buffer plate 203 and the buffer spring 202 are compressed by force, and the fixing bolt 7 is subjected to the reaction force of the buffer spring 202, which effectively prevents the fixing bolt 7 from loosening.

[0028] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "includes an element defined by... does not exclude the existence of other identical elements in the process, method, article or device including the element".

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A large-size spiral deployable antenna, comprising a main rod (1) and a secondary rod (2), characterized in that: The top outer wall of the main rod (1) is provided with a through hole (101) and a plurality of movable holes (110); the top inner wall of the main rod (1) is fixedly provided with a fixing ring (102); the bottom outer wall of the fixing ring (102) is fixedly provided with a plurality of U-shaped seats (103); the inner wall of each of the U-shaped seats (103) is fixedly provided with a fixing rod (104); the outer wall of each of the fixing rods (104) is rotatably provided with an axle rod (105); the outer wall of each of the axle rods (105) is fixedly provided with a limiting clamping plate (106); the outer wall of each of the limiting clamping plates (106) is provided with a plate groove (106); 7), the outer wall of each shaft rod (105) is provided with a torsion spring (108), one end of each torsion spring (108) is fixedly connected to the outer wall of the corresponding limit clamp (106), the other end of each torsion spring (108) is fixedly connected to the inner wall of the corresponding U-shaped seat (103), the inner wall of each movable hole (110) is plugged with a support rod (112), one end of each support rod (112) located outside the main rod (1) is fixedly connected to the same control ring (113), and a plurality of compression springs (111) are fixedly arranged between the control ring (113) and the main rod (1).

2. A large-size spiral deployable antenna according to claim 1, characterized in that: A mounting seat (6) is fixedly provided on the bottom outer wall of the main rod (1), a placement groove (602) is provided on the top outer wall of the mounting seat (6), a movable groove (603) is provided on the inner wall of the placement groove (602), seat holes (601) are provided on both side outer walls of the mounting seat (6), a connecting rod (604) is movably inserted into the inner wall of each seat hole (601), a control button (606) is fixedly provided on one end of each connecting rod (604) away from the mounting seat (6), an elastic spring (605) is fixedly provided between each control button (606) and the mounting seat (6), an arc-shaped clamping plate (607) is fixedly provided on the outer wall of the other end of each connecting rod (604), and an arc-shaped clamping plate (608) is fixedly provided on the inner wall of each arc-shaped clamping plate (607).

3. The large-size spiral deployable antenna according to claim 1, characterized in that: A rod groove (201) is formed on the top outer wall of the auxiliary rod (2); a buffer spring (202) is fixedly provided at the bottom of the inner wall of the rod groove (201); a buffer plate (203) is fixedly provided on the outer wall of the other end of the buffer spring (202); the outer wall of the buffer plate (203) is slidably connected to the inner wall of the rod groove (201); and a fixing bolt (7) is threadedly connected to the inner wall of the rod groove (201).

4. The large-size spiral deployable antenna according to claim 2, characterized in that: A lower base (3) is inserted into the interior of the placement slot (602), two slots (302) are provided on the outer wall of the lower base (3), a helical antenna (5) is fixedly provided on the top outer wall of the lower base (3), and an upper base (4) is fixedly provided on the outer wall of the other end of the helical antenna (5).

5. The large-size spiral deployable antenna according to claim 3, characterized in that: A first limiting ring (204) and a second limiting ring (205) are fixedly provided on the outer wall of the auxiliary rod (2), and the first limiting ring (204) is located above the second limiting ring (205).

6. The large-size helical deployable antenna according to claim 1, characterized in that: A rubber pad (109) is fixedly provided on the outer wall of one side of each of the limiting clamps (106) away from the corresponding U-shaped seat (103); the movable holes (110) correspond one-to-one with the limiting clamps (106); the support rods (112) correspond one-to-one with the compression springs (111); and each of the support rods (112) is located inside the corresponding compression spring (111).

7. The large-size spiral deployable antenna according to claim 2, characterized in that: Each of the connecting rods (604) is located inside a corresponding elastic spring (605), and each of the arc-shaped clamping plates (607) is located inside a movable groove (603).

8. The large-size spiral deployable antenna according to claim 4, characterized in that: The card slots (302) correspond to the arc-shaped clamping plates (607) in a one-to-one manner, and the arc-shaped clamping plates (608) are plugged into the card slots (302).

9. The large-size helical deployable antenna according to claim 4, characterized in that: A first set of holes (301) is formed on the top outer wall of the lower base (3), the diameter of the first set of holes (301) is the same as the diameter of the main rod (1), and the inner wall of the first set of holes (301) is plugged into the main rod (1); a second set of holes (401) is formed on the outer wall of the upper base (4), the diameter of the second set of holes (401) is the same as the diameter of the auxiliary rod (2), and the inner wall of the second set of holes (401) is plugged into the auxiliary rod (2).

10. The large-size helical deployable antenna according to claim 9, characterized in that: The upper base (4) is located between the fixing bolt (7) and the first limiting ring (204); the diameter of the fixing bolt (7) is greater than the diameter of the second set of holes (401); and tightening the fixing bolt (7) can be used to limit the position of the upper base (4).

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