Low-frequency base station antenna for 5G communication

Abstract

The invention discloses a low-frequency base station antenna for 5G communication, and relates to the technical field of low-frequency base station antennas for 5G communication.The low-frequency base station antenna for 5G communication comprises an antenna column, a placement table is fixed to the outer wall of the antenna column, a mounting base is attached to the top of the placement table, and a rotating shaft penetrates through the protruding position of the outer wall of the mounting base. According to the low-frequency base station antenna for 5G communication, when the direction of the antenna plate needs to be adjusted, a disc is pulled to move upwards, a first clamping tooth can be driven to move upwards, the first clamping tooth is moved out of a second clamping tooth, limiting of the disc is relieved, and by rotating the disc, a mounting base arranged on an antenna column in a sleeving mode can be driven to rotate; and after the direction is adjusted, a first clamping tooth can be clamped into a second clamping tooth through the cooperation of a loosening disc and a connecting spring, so that the effect of fixing the direction of the antenna plate is achieved.

Description

Technical Field

[0001] This invention relates to the field of low-frequency base station antenna technology for 5G communication, specifically to a low-frequency base station antenna for 5G communication. Background Technology

[0002] An antenna is a transducer that transforms guided waves propagating on a transmission line into electromagnetic waves propagating in an unbounded medium (usually free space), or vice versa. Antennas are an important component of 5G communication base stations, and 5G signal communication base stations mostly use mechanically downtilted antennas.

[0003] When network optimization is required, the direction and angle of the antenna need to be adjusted. However, existing antennas are installed using bolts, which means that when the direction of the antenna needs to be adjusted, staff need to carry tools to remove the bolts and make the adjustment, which is inconvenient for staff. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a low-frequency base station antenna for 5G communication, which solves the problems mentioned in the background section.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a low-frequency base station antenna for 5G communication, comprising an antenna column, a placement platform fixed to the outer wall of the antenna column, a mounting base attached to the top of the placement platform, a rotating shaft passing through the protruding part of the outer wall of the mounting base, an antenna plate fixed to the outer wall of the rotating shaft, an adjustment device for conveniently adjusting the direction of the antenna plate provided above the mounting base, and an auxiliary device for adjusting the angle of the antenna plate provided above the mounting base; The adjustment device includes a fixed frame, a disc, an inclined block, a slider, a locking block, a locking groove, a connecting spring, a first locking tooth, and a second locking tooth. The fixed frame is fixed to the top of the mounting base. The inclined block is slidably mounted on the inner side of the fixed frame. The bottom of the connecting spring is fixed to the inner wall of the fixed frame. The top of the connecting spring is fixed to the bottom of the inclined block. The inclined surface of the inclined block is slidably mounted on the slider. The locking block is fixed to the outer wall of the slider. The locking groove is opened on the outer wall of the antenna column. The outer wall of the locking block fits against the inner wall of the locking groove.

[0006] According to the above technical solution, the disc is fixed to the top of the inclined block, the first locking tooth is fixed to the bottom of the disc, and the second locking tooth is fixed to the top of the antenna column. When the direction of the antenna plate needs to be adjusted, the disc can be pulled to move the first locking tooth out of the second locking tooth, thereby releasing the restriction on the antenna plate. When the disc moves upward, it can move the inclined block upward, causing the connecting spring to stretch. When the inclined block moves upward, it can squeeze the slider to move, causing the slider to move the locking block out of the slot.

[0007] According to the above technical solution, the auxiliary device includes an L-shaped block, a threaded rod, a knob, a sliding frame, a threaded block, a return spring, a connecting rod, a connecting block, a locking block, a limiting block, a bending block, a reset block, and a reset spring. The L-shaped block is fixed to the outer wall of the mounting base, the threaded rod is rotatably mounted on the inner side of the L-shaped block, the knob is fixed to the end point of the threaded rod, the sliding frame is slidably mounted on the inner side of the L-shaped block, the outer wall of the threaded block is slidably mounted on the inner side of the sliding frame, one side of the return spring is fixed to the outer wall of the threaded block, and the other side of the return spring is fixed to the inner side of the sliding frame. When the knob is rotated, the threaded block can be moved, and when the threaded block moves, it can drive the sliding frame to move, thereby causing the connecting block to move and compress the antenna plate.

[0008] According to the above technical solution, one end of the connecting rod is fixed to the outer wall of the threaded block, and the other end of the connecting rod is fixed with a bending block. The connecting rod passes through the side wall of the L-shaped block and is slidably connected at the penetration point. The locking block is slidably installed on the top of the L-shaped block.

[0009] According to the above technical solution, the limiting block passes through the bending block and is slidably connected at the through point. The outer wall of the limiting block is attached to the top inner side of the card hole block. The connecting block is fixed to the outer wall of the sliding frame. The side of the connecting block away from the sliding frame is hinged to the side wall of the antenna plate.

[0010] According to the above technical solution, the reset block is fixed to the outer wall of the sliding frame, one side of the reset spring is fixed to the outer wall of the sliding frame, and the other side of the reset spring is fixed to the inner side of the L-shaped block.

[0011] According to the above technical solution, it also includes a buffer device, which is set on the L-shaped block. The buffer device includes a telescopic rod, a transmission block, a transmission plate, an L-shaped rod, a friction plate, and a rubber plate. The telescopic rod is fixed to the outer wall of the L-shaped block, the transmission plate is fixed to the end of the telescopic rod, the transmission block is fixed to the outer wall of the bent block, and the other side of the transmission block is slidably connected to the inner side of the transmission plate.

[0012] According to the above technical solution, the L-shaped rod is fixed to the bottom of the transmission plate, a rubber plate is fixed to the end of the L-shaped rod away from the transmission plate, and the friction plate is fixed to the outer wall of the rotating shaft.

[0013] This invention provides a low-frequency base station antenna for 5G communication. It has the following beneficial effects: 1. This invention, through the setting of an adjustment device, when the direction of the antenna plate needs to be adjusted, pulls the disc upward, thereby moving the first locking tooth upward and causing it to move out of the second locking tooth, releasing the limiting position on the disc. By rotating the disc, the mounting base fitted on the antenna column can be rotated, thereby adjusting the direction of the antenna plate. After the direction is adjusted, by releasing the disc, the first locking tooth can be engaged with the second locking tooth through the cooperation of the connecting spring, thus fixing the direction of the antenna plate. When the connecting spring moves the inclined block downward, the slider can cause the slider to move the locking block into the locking groove, thus limiting the vertical position of the antenna plate and preventing the antenna plate from detaching from the top of the antenna column.

[0014] 2. This invention, through the provision of an auxiliary device, allows the threaded block to move on the threaded rod when the knob is rotated. This movement of the threaded block moves the sliding frame, which in turn moves the connecting block, compressing the antenna plate and adjusting its angle for network optimization. When the adjusted antenna plate returns to its original position, the limiting block is pulled out of the locking hole, releasing the limiting effect on the bending block. The return spring prevents the threaded block from contacting the threaded rod, and the reset spring resets the sliding frame and threaded block, allowing the sliding frame to quickly reset the connecting block and the antenna plate for adjustment.

[0015] 3. This invention incorporates a buffer device. When the reset spring drives the antenna plate to quickly reset, and because the threaded block moves away from the threaded rod, the connecting rod pushes the bending block to move. This causes the bending block to move the transmission block, which in turn moves the transmission plate and the L-shaped rod, thereby moving the rubber plate and bringing it into contact with the friction plate. When the antenna plate drives the rotating shaft to rotate, the friction plate rotates on the rubber plate, thus achieving a deceleration and buffering effect. This prevents the antenna plate from vibrating and potentially damaging internal components when the reset spring drives it to quickly reset. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a partial structural diagram of the present invention; Figure 3 This is a partial cross-sectional view of the present invention; Figure 4 This is a partial structural diagram of the present invention; Figure 5 This is a partial cross-sectional view of the present invention; Figure 6 This is a schematic diagram of the cross-sectional structure of the L-shaped block of the present invention; Figure 7 For the present invention Figure 2 Enlarged schematic diagram of structure A; Figure 8 For the present invention Figure 3 An enlarged schematic diagram of the B structure.

[0017] In the diagram: 1. Antenna column; 2. Placement platform; 3. Mounting base; 4. Rotating shaft; 5. Antenna plate; 61. Fixing frame; 62. Inclined block; 63. Disc; 64. Connecting spring; 65. Slider; 66. Locking block; 67. Locking slot; 68. Locking tooth No. 1; 69. Locking tooth No. 2; 71. L-shaped block; 72. Threaded rod; 73. Knob; 74. Sliding frame; 75. Threaded block; 76. Return spring; 77. Connecting rod; 78. Connecting block; 79. Bending block; 710. Limiting block; 711. Locking hole block; 712. Reset block; 713. Reset spring; 81. Transmission block; 82. Telescopic rod; 83. Transmission plate; 84. L-shaped rod; 85. Friction plate; 86. Rubber plate. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Please see Figures 1-8 One embodiment of the present invention is: a low-frequency base station antenna for 5G communication, including an antenna column 1, a placement platform 2 fixed on the outer wall of the antenna column 1, a mounting base 3 attached to the top of the placement platform 2, a rotating shaft 4 passing through the protrusion of the outer wall of the mounting base 3, the passing through the shaft 4 being rotatably connected, an antenna plate 5 fixed on the outer wall of the rotating shaft 4, and an adjustment device for adjusting the direction of the antenna plate 5 is provided above the mounting base 3. The adjustment device includes a fixed frame 61, a disc 63, an inclined block 62, a slider 65, a locking block 66, a slot 67, a connecting spring 64, a first locking tooth 68, and a second locking tooth 69. The fixed frame 61 is fixed to the top of the mounting base 3. The inclined block 62 is slidably installed on the inner side of the fixed frame 61. The bottom of the connecting spring 64 is fixed to the inner wall of the fixed frame 61, and the top of the connecting spring 64 is fixed to the bottom of the inclined block 62. The slider 65 is slidably installed on the inclined surface of the inclined block 62. The locking block 66 is fixed to the outer wall of the slider 65. The slot 67 is opened on the outer wall of the antenna column 1. The locking block 66 extends into the slot 67 to achieve a limiting effect. The outer wall of the locking block 66 fits against the inner wall of the slot 67. The disc 63 is fixed to the top of the inclined block 62. The first locking tooth 68 is fixed to the bottom of the disc 63, and the second locking tooth 69 is on the top of the antenna column 1.

[0020] When the direction of the antenna plate 5 needs to be adjusted, the disc 63 is pulled upward, which in turn moves the first locking tooth 68 upward, causing the first locking tooth 68 to move out of the second locking tooth 69, releasing the restriction on the disc 63. By rotating the disc 63, the mounting base 3 fitted on the antenna column 1 can be rotated, thereby adjusting the direction of the antenna plate 5. After the direction is adjusted, by releasing the disc 63, the first locking tooth 68 can be engaged in the second locking tooth 69 through the cooperation of the connecting spring 64, thus fixing the direction of the antenna plate 5. When the connecting spring 64 drives the inclined block 62 to move downward, the slider 65, in conjunction with it, enables the locking block 66 to extend into the slot 67, thereby limiting the vertical position of the antenna plate 5 and preventing the antenna plate 5 from detaching from the top of the antenna column 1.

[0021] In this embodiment, when the direction of the antenna plate 5 needs to be adjusted, the disk 63 is pulled upwards, causing it to move upwards. This upward movement of the disk 63 moves the first locking tooth 68 upwards, causing it to disengage from the second locking tooth 69, thus releasing the azimuth restriction on the disk 63. Furthermore, the upward movement of the disk 63 moves the inclined block 62 upwards, causing its inclined surface to pull the slider 65, which in turn moves the locking block 66 out of the slot 67. The upward movement of the inclined block 62 also stretches the connecting spring 64. When the disk 63 is released from its limit, rotating the disk 63 causes the inclined block 62 to rotate, which in turn rotates the fixed frame 61. When the fixed frame 61 rotates, it drives the mounting base 3 to rotate, which in turn drives the antenna plate 5 to rotate, thereby adjusting the orientation of the antenna plate 5. When the orientation of the antenna plate 5 is adjusted, the disc 63 is released. Because the connecting spring 64 is in a stretched state, the connecting spring 64 drives the inclined block 62 to move downward. When the inclined block 62 moves downward, it drives the disc 63 to move downward, so that the first locking tooth 68 on the disc 63 engages with the second locking tooth 69, thereby limiting the position of the disc 63. When the inclined block 62 moves downward, the inclined surface of the inclined block 62 can squeeze the slider 65. The slider 65 drives the locking block 66 to move out of the fixed frame 61, so that the locking block 66 can extend into the locking groove 67, thereby limiting the position of the fixed frame 61 and limiting the vertical position of the antenna plate 5. When it is necessary to remove the antenna plate 5 from the antenna column 1, pull the disc 63 to move the inclined block 62 upward. The slider 65 can drive the locking block 66 to move out of the slot 67. Then push the antenna plate 5 upward, which can drive the mounting base 3 to move upward, so that the mounting base 3 can be moved out from the top of the antenna column 1, making it easy to remove the antenna plate 5. When it is necessary to install the antenna plate 5, the mounting base 3 can be directly put on the antenna column 1 and placed on the placement platform 2.

[0022] Please see Figures 1-8Based on the above embodiments, in another embodiment of the present invention, an auxiliary device for adjusting the angle of the antenna plate 5 is provided above the mounting base 3. The auxiliary device includes an L-shaped block 71, a threaded rod 72, a knob 73, a sliding frame 74, a threaded block 75, a return spring 76, a connecting rod 77, a connecting block 78, a locking block 711, a limiting block 710, a bending block 79, a reset block 712, and a reset spring 713. The L-shaped block 71 is fixed to the outer wall of the mounting base 3, the threaded rod 72 is rotatably mounted on the inner side of the L-shaped block 71, the knob 73 is fixed to the end point of the threaded rod 72, the sliding frame 74 is slidably mounted on the inner side of the L-shaped block 71, the outer wall of the threaded block 75 is slidably mounted on the inner side of the sliding frame 74, one side of the return spring 76 is fixed to the outer wall of the threaded block 75, and the other side of the return spring 76 is fixed to the inner side of the sliding frame 74. One end of the connecting rod 77 is fixed to the outer wall of the threaded block 75, and the other end of the connecting rod 77 is fixed to the bending block 79. The connecting rod 77 passes through the side wall of the L-shaped block 71 and is slidably connected at the penetration point. The locking block 711 is slidably installed on the top of the L-shaped block 71. The limiting block 710 passes through the bending block 79. The top of the locking block 711 has a hole. Through the cooperation of the hole and the limiting block 710, the bending block 79 can be limited. The penetration point is slidably connected. The outer wall of the limiting block 710 fits against the inner side of the top of the locking block 711. The connecting block 78 is fixed to the outer wall of the sliding frame 74. The side of the connecting block 78 away from the sliding frame 74 is hinged to the side wall of the antenna plate 5. The reset block 712 is fixed to the outer wall of the sliding frame 74. One side of the reset spring 713 is fixed to the outer wall of the sliding frame 74, and the other side of the reset spring 713 is fixed to the inner side of the L-shaped block 71.

[0023] When the knob 73 is turned, the threaded block 75 can be moved on the threaded rod 72. When the threaded block 75 moves, it can move the sliding frame 74, which in turn moves the connecting block 78, which can squeeze the antenna plate 5, thereby adjusting the angle of the antenna plate 5 and facilitating network optimization. Furthermore, when it is necessary to restore the antenna plate 5 with the adjusted angle to its original position, the limiting block 710 is pulled out of the locking block 711, thereby releasing the limiting of the bending block 79. With the cooperation of the return spring 76, the threaded block 75 can be prevented from contacting the threaded rod 72. With the cooperation of the reset spring 713, the sliding frame 74 and the threaded block 75 can be reset, so that the sliding frame 74 can drive the connecting block 78 to quickly reset, and the antenna plate 5 can be quickly reset for adjustment.

[0024] It also includes a buffer device, which is set on the L-shaped block 71. The buffer device includes a telescopic rod 82, a transmission block 81, a transmission plate 83, an L-shaped rod 84, a friction plate 85, and a rubber plate 86. The telescopic rod 82 is fixed to the outer wall of the L-shaped block 71, the transmission plate 83 is fixed to the end of the telescopic rod 82, the transmission block 81 is fixed to the outer wall of the bent block 79, the other side of the transmission block 81 is slidably connected to the inner side of the transmission plate 83, the L-shaped rod 84 is fixed to the bottom of the transmission plate 83, the end of the L-shaped rod 84 away from the transmission plate 83 is fixed with a rubber plate 86, and the friction plate 85 is fixed to the outer wall of the rotating shaft 4.

[0025] When the reset spring 713 drives the antenna plate 5 to quickly reset, and because the threaded block 75 moves away from the threaded rod 72, the connecting rod 77 pushes the bending block 79 to move, thereby causing the bending block 79 to drive the transmission block 81 to move, which in turn causes the transmission plate 83 to drive the L-shaped rod 84 to move, thereby causing the rubber plate 86 to move and come into contact with the friction plate 85. When the antenna plate 5 drives the rotating shaft 4 to rotate, the friction plate 85 and the rubber plate 86 can rotate, thereby achieving a deceleration and buffering effect. This prevents the antenna plate 5 from shaking when the reset spring 713 drives the antenna plate 5 to quickly reset, which could cause damage to the internal parts of the antenna plate 5.

[0026] Two sets of threaded blocks 75 are provided, and the two sets of threaded blocks 75 are symmetrically arranged with the center line in the vertical direction of the L-shaped block 71 as the axis of symmetry. The inner threads of the two sets of threaded blocks 75 are engaged with the outer thread of the threaded rod 72, so that when the threaded rod 72 rotates, the two sets of threaded blocks 75 can move synchronously.

[0027] Furthermore, since the threaded block 75 and the threaded rod 72 are connected by threads, and the threaded connection has a self-locking function, when the threaded rod 72 rotates, the threaded block 75 can drive the sliding frame 74 to move. The reset block 712 drives the reset spring 713 to deform. When the threaded rod 72 is no longer rotated, the threaded block 75 will no longer move on the threaded rod 72. Due to the self-locking function of the thread, the deformation of the reset spring 713 will not drive the threaded block 75 to move.

[0028] In this embodiment, when the angle of the antenna plate 5 needs to be adjusted, rotating the knob 73 causes the threaded rod 72 to rotate. When the threaded rod 72 rotates, it causes the threaded block 75 to move along it. As the threaded block 75 moves, it causes the sliding frame 74 to move. Simultaneously, the sliding frame 74 moves, causing the connecting block 78 to move, which in turn presses against the antenna plate 5, causing it to rotate at the hinge point and adjust its angle. Furthermore, when the sliding frame 74 moves, it causes the reset block 712 to move, thus deforming the reset spring 713. Furthermore, when the antenna plate 5 needs to be quickly returned to its original position, by pulling the limiting block 710 and moving it out from the top of the locking block 711, the limitation on the bending block 79 can be released. Because the return spring 76 is in a stretched state, it can drive the threaded block 75 to move into the sliding frame 74, so that the threaded block 75 does not contact the threaded rod 72. And because the reset spring 713 is in a deformed state, it can drive the sliding frame 74 to reset. The original position of the reset spring 713 is that the antenna plate 5 is in a straightened state. Therefore, when the reset spring 713 drives the sliding frame 74 to reset, the antenna plate 5 is in a straightened state. When the moving frame 74 resets, it can drive the connecting block 78 to reset, thereby causing the connecting block 78 to pull the antenna plate 5 to be aligned. When the threaded block 75 needs to continue its threaded connection with the threaded rod 72, pushing the bending block 79 can cause the bending block 79 to move the connecting rod 77, causing the connecting rod 77 to press the threaded block 75 into contact with the outer wall of the threaded rod 72, thus establishing a threaded connection between the threaded block 75 and the threaded rod 72. When the threaded block 75 and the threaded rod 72 are threadedly connected, the limiting block 710 on the bending block 79 will align with the locking block 711. Pushing the limiting block 710 downwards will cause the limiting block 710 to extend into the locking block 711. The bending block 79 is limited, and when the threaded block 75 moves outward from the sliding frame 74, the return spring 76 is stretched. When the threaded block 75 moves away from the threaded rod 72, the connecting rod 77 will drive the bending block 79 to move, thereby causing the transmission block 81 to drive the transmission plate 83 to move, and the transmission plate 83 to drive the L-shaped rod 84 to move. When the L-shaped rod 84 moves, it can drive the rubber plate 86 to move, thereby causing the outer wall of the rubber plate 86 to press against the outer wall of the friction plate 85. When the return spring 713 drives the antenna plate 5 to rotate and reset, the rotating shaft 4 will drive the friction plate 85 to rotate, causing the friction plate 85 to decelerate by friction on the rubber plate 86.Furthermore, when the threaded block 75 moves outward from the sliding frame 74, it will connect with the threaded rod 72, causing the connecting rod 77 to reset the transmission block 81. This, in turn, causes the transmission plate 83 to move the L-shaped rod 84, thereby moving the rubber plate 86 away from the friction plate 85. Therefore, when the threaded rod 72 moves the threaded block 75 to adjust the angle of the antenna plate 5, it prevents the friction plate 85 from contacting the rubber plate 86, which would increase friction and make it difficult to adjust the angle of the antenna plate 5.

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

Claims

1. A low-frequency base station antenna for 5G communication, comprising an antenna column (1), characterized in that: The antenna column (1) has a placement platform (2) fixed on its outer wall. The top of the placement platform (2) is fitted with a mounting base (3). A rotating shaft (4) passes through the protruding part of the outer wall of the mounting base (3) and is rotatably connected at the passage. An antenna plate (5) is fixed on the outer wall of the rotating shaft (4). An adjustment device is provided above the mounting base (3) to facilitate the adjustment of the direction of the antenna plate (5). An auxiliary device is provided above the mounting base (3) to adjust the angle of the antenna plate (5). The adjustment device includes a fixed frame (61), a disc (63), an inclined block (62), a slider (65), a locking block (66), a slot (67), a connecting spring (64), a first locking tooth (68), and a second locking tooth (69). The fixed frame (61) is fixed to the top of the mounting base (3). The inclined block (62) is slidably installed on the inner side of the fixed frame (61). The bottom of the connecting spring (64) is fixed to the inner wall of the fixed frame (61). The top of the connecting spring (64) is fixed to the bottom of the inclined block (62). The slider (65) is slidably installed on the inclined surface of the inclined block (62). The locking block (66) is fixed to the outer wall of the slider (65). The slot (67) is opened on the outer wall of the antenna column (1). The outer wall of the locking block (66) fits against the inner wall of the slot (67).

2. The low-frequency base station antenna for 5G communication according to claim 1, characterized in that: The disk (63) is fixed to the top of the inclined block (62), the first locking tooth (68) is fixed to the bottom of the disk (63), and the second locking tooth (69) is fixed to the top of the antenna column (1).

3. The low-frequency base station antenna for 5G communication according to claim 2, characterized in that: The auxiliary device includes an L-shaped block (71), a threaded rod (72), a knob (73), a sliding frame (74), a threaded block (75), a return spring (76), a connecting rod (77), a connecting block (78), a locking block (711), a limiting block (710), a bending block (79), a reset block (712), and a reset spring (713). The L-shaped block (71) is fixed to the outer wall of the mounting base (3). The threaded rod (72) is rotatably mounted on the inner side of the L-shaped block (71). The knob (73) is fixed to the end of the threaded rod (72). The sliding frame (74) is slidably mounted on the inner side of the L-shaped block (71). The outer wall of the threaded block (75) is slidably mounted on the inner side of the sliding frame (74). One side of the return spring (76) is fixed to the outer wall of the threaded block (75), and the other side of the return spring (76) is fixed to the inner side of the sliding frame (74).

4. A low-frequency base station antenna for 5G communication according to claim 3, characterized in that: One end of the connecting rod (77) is fixed to the outer wall of the threaded block (75), and the other end of the connecting rod (77) is fixed with a bending block (79). The connecting rod (77) passes through the side wall of the L-shaped block (71) and is slidably connected at the point of penetration. The locking block (711) is slidably installed on the top of the L-shaped block (71).

5. A low-frequency base station antenna for 5G communication according to claim 4, characterized in that: The limiting block (710) passes through the bending block (79) and is slidably connected at the point of penetration. The outer wall of the limiting block (710) is attached to the top inner side of the card hole block (711). The connecting block (78) is fixed to the outer wall of the sliding frame (74). The side of the connecting block (78) away from the sliding frame (74) is hinged to the side wall of the antenna plate (5).

6. A low-frequency base station antenna for 5G communication according to claim 5, characterized in that: The reset block (712) is fixed to the outer wall of the sliding frame (74), one side of the reset spring (713) is fixed to the outer wall of the sliding frame (74), and the other side of the reset spring (713) is fixed to the inner side of the L-shaped block (71).

7. A low-frequency base station antenna for 5G communication according to claim 1, characterized in that: It also includes a buffer device, which is set on the L-shaped block (71). The buffer device includes a telescopic rod (82), a transmission block (81), a transmission plate (83), an L-shaped rod (84), a friction plate (85), and a rubber plate (86). The telescopic rod (82) is fixed to the outer wall of the L-shaped block (71), the transmission plate (83) is fixed to the end of the telescopic rod (82), the transmission block (81) is fixed to the outer wall of the bent block (79), and the other side of the transmission block (81) is slidably connected to the inner side of the transmission plate (83).

8. A low-frequency base station antenna for 5G communication according to claim 7, characterized in that: The L-shaped rod (84) is fixed to the bottom of the transmission plate (83), and a rubber plate (86) is fixed to the end of the L-shaped rod (84) away from the transmission plate (83). The friction plate (85) is fixed to the outer wall of the rotating shaft (4).

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