Tiled multi-shaft gear shifting transmission device and base station antenna

Abstract

The invention provides a tiled multi-shaft gear shifting transmission device and a base station antenna. The tiled multi-shaft gear shifting transmission device comprises a plurality of transmission screws which are arranged side by side, and each transmission screw is provided with a locking piece for locking rotation of the transmission screw; the transmission mechanism is movably arranged on one side of the transmission screw rod; the gear shifting mechanism is movably arranged on one side of the transmission screw, abuts against the transmission mechanism and is used for pushing the transmission mechanism and controlling the locking piece to lock or loosen the corresponding transmission screw. According to the tiled multi-shaft gear shifting transmission device, through the multiple transmission screws arranged side by side, the movable transmission mechanism and the gear shifting mechanism, accurate control over the multiple frequency band units and the phase shifters is achieved. When the gear shifting mechanism pushes the transmission mechanism to be in transmission connection with a certain transmission screw, the transmission mechanism can be automatically separated from other transmission screws, meanwhile, the gear shifting mechanism can abut against the locking piece of the corresponding transmission screw to loosen the locking piece, and therefore the gear shifting and angle adjusting functions are achieved.

Description

Technical Field

[0001] The present invention relates to the field of mobile communication technology, and in particular to a flat multi-axis gear shifting transmission device and a base station antenna. Background Art

[0002] With the rapid development of mobile communication technology, base station antennas, as an indispensable and important component in modern communication networks, have increasingly higher performance and design requirements. The current market not only requires base station antennas to cover multiple frequency bands to meet the needs of different users, but also puts forward higher standards for the green design of antennas. Green design emphasizes reducing resource consumption and environmental pollution, which is mainly reflected in the design of base station antennas in terms of reducing material use, improving energy efficiency, and optimizing component layout.

[0003] In the design of base station antennas, in order to achieve more efficient signal transmission and reception, the length of cables is constantly shortened, while the length and stroke of phase shifters are correspondingly increased. This change poses a severe challenge to the spatial layout inside the antenna. Designers need to reasonably arrange low-frequency, medium-frequency, high-frequency and smart band units in a limited space, while also ensuring that the matching phase shifters can be installed and adjusted normally. The adjustment of the phase shifter usually depends on the transmission screw, and how to ensure that the transmission screw does not interfere with the phase shifter in the length direction of the antenna while accurately adjusting the angle of the phase shifter has become a difficulty in the current design. Traditional transmission methods often cannot meet this complex and compact layout requirement. Therefore, there is an urgent need for a new type of transmission device that can realize multi-axis shifting in a limited space, accurately control the angle adjustment of the phase shifter, and avoid interference between the transmission screw and the phase shifter. Summary of the invention

[0004] The present invention provides a flat multi-axis gear shift transmission device and a base station antenna, which are used to solve the problem of multi-axis gear shift angle adjustment and avoid interference between a transmission screw and a phase shifter.

[0005] The present invention provides a flat multi-axis gear shifting transmission device, comprising: A plurality of transmission screws arranged side by side, each of the transmission screws being provided with a locking member for locking the rotation thereof; A transmission mechanism, movably disposed on one side of the transmission screw; A shift mechanism, movably disposed on one side of the transmission screw, abutting against the transmission mechanism, for pushing the transmission mechanism and for controlling the locking member to lock or release the corresponding transmission screw; When the shift mechanism pushes the transmission mechanism to be transmission-connected with one of the transmission screws, the transmission mechanism is separated from the other transmission screws, and the shift mechanism abuts against the locking member corresponding to the transmission screw, so that the locking member releases the corresponding transmission screw.

[0006] According to a flat multi-axis shift transmission device provided by the present invention, each of the transmission screws is provided with a transmission assembly transmission-connected thereto, and the locking member is used to lock the corresponding transmission assembly from rotating; The transmission mechanism comprises: a transmission rod and a shift gear, wherein the shift gear is slidably arranged on the transmission rod, and the transmission rod is transmission-connected with the shift gear; The shift mechanism abuts against the shift gear to adjust the position of the shift gear on the transmission rod; when the shift mechanism pushes the shift gear to be connected to the transmission assembly, the shift mechanism abuts against the locking piece corresponding to the transmission screw to allow the locking piece to release the corresponding transmission assembly.

[0007] According to a flat-lay type multi-axis shift transmission device provided by the present invention, the transmission mechanism further comprises: a first transmission knob and a first bevel gear; The first bevel gear is slidably disposed on the transmission rod, and the first transmission knob is sequentially transmission-connected with the transmission rod and the shift gear through the first bevel gear.

[0008] According to a flat multi-axis shift transmission device provided by the present invention, the plurality of transmission screws are divided into two groups, and the transmission mechanism is provided with two shift gears, namely a first shift gear and a second shift gear; The first shift gear is arranged at the first end of the transmission rod, and the second shift gear is arranged at the second end of the transmission rod; the shift mechanism abuts against the first shift gear and the second shift gear to simultaneously adjust the positions of the first shift gear and the second shift gear on the transmission rod; When the shift mechanism simultaneously pushes the first shift gear and the second shift gear to move, the first shift gear moves at a position corresponding to one group of the transmission screws, and the second shift gear moves at a position corresponding to another group of the transmission screws.

[0009] According to a flat-lay type multi-shaft shift transmission device provided by the present invention, the transmission assembly comprises: a first transmission gear and a second bevel gear; The first transmission gear is meshed with the second bevel gear, and the locking member is arranged on the second bevel gear; the shift mechanism is suitable for driving the locking member to abut against or separate from the second bevel gear to lock or release the second bevel gear.

[0010] According to a flat-lay multi-axis shift transmission device provided by the present invention, the shift mechanism comprises: A shift frame is slidably arranged on the transmission rod; a first end of the shift frame abuts against the first shift gear for adjusting the position of the first shift gear on the transmission rod; a second end of the shift frame abuts against the second shift gear for adjusting the position of the second shift gear on the transmission rod.

[0011] According to a flat multi-axis shift transmission device provided by the present invention, a synchronous rack is formed on the shift frame; the shift mechanism further includes: a second transmission knob and a third bevel gear; The third bevel gear is slidably arranged on the transmission rod, a thread matching the synchronous rack is formed on the side surface of the third bevel gear, and the second transmission knob is transmission-connected to the shift mechanism through the third bevel gear.

[0012] According to a flat multi-axis shift transmission device provided by the present invention, abutment members are formed at both ends of the shift frame; When the shift frame pushes the first shift gear or the second shift gear to be in transmission connection with the transmission assembly, the abutment member presses the locking member corresponding to the transmission assembly so that the locking member releases the transmission assembly.

[0013] According to a flat multi-axis shift transmission device provided by the present invention, the locking member comprises: a stopper and an elastic member, The elastic member is connected to the anti-retraction card, and the anti-retraction card is squeezed by the elastic member to lock the transmission assembly; the abutment member is suitable for pressing the anti-retraction card to lock or release the transmission assembly.

[0014] The present invention also provides a base station antenna, comprising the above-mentioned flat-lay multi-axis shift transmission device.

[0015] The flat multi-axis shift transmission device and base station antenna provided by the present invention realize precise control of multiple frequency band units and phase shifters through multiple transmission screws arranged side by side, movable transmission mechanisms and shift mechanisms. When the shift mechanism pushes the transmission mechanism to connect with a certain transmission screw, the transmission mechanism will automatically separate from the other transmission screws, and at the same time, the shift mechanism will abut against the locking piece of the corresponding transmission screw to loosen it, thereby realizing the functions of shifting and angle adjustment. This design not only optimizes the internal spatial layout of the antenna, but also improves the transmission efficiency and adjustment accuracy, providing strong technical support for the green design and multi-band coverage of the base station antenna. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 It is an overall schematic diagram of a flat-lay multi-axis shift transmission device provided in an embodiment of the present invention.

[0018] Figure 2 It is one of the schematic diagrams of the partial internal structure of the flat-type multi-axis shift transmission device provided in an embodiment of the present invention.

[0019] Figure 3 This is the second schematic diagram of the partial internal structure of the flat-type multi-axis shift transmission device provided in an embodiment of the present invention.

[0020] Figure 4 This is the third schematic diagram of the partial internal structure of the flat-type multi-axis shift transmission device provided in an embodiment of the present invention.

[0021] Figure 5 It is a schematic diagram of setting adjustment holes on a flat multi-axis shift transmission device provided in an embodiment of the present invention.

[0022] Figure 6 It is a schematic diagram of the bottom of a flat-lay multi-axis gear shifting transmission device provided in an embodiment of the present invention.

[0023] Reference numerals: 1. Transmission screw; 11. Sliding block; 12. First transmission gear; 13. Second bevel gear; 2. Locking member; 21. Retraction stopper; 22. Elastic member; 3. Transmission mechanism; 31. Transmission rod; 32. First shift gear; 33. Second shift gear; 34. First transmission knob; 35. First bevel gear; 4. Shift mechanism; 41. Shift frame; 411. Synchronous rack; 412. Abutment member; 42. Second transmission knob; 43. Third bevel gear; 5. Box body; 51. Adjustment hole. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] Combine the following Figure 1-Figure 6 The invention provides a flat multi-axis gear shift transmission device and a base station antenna. The flat multi-axis gear shift transmission device is applied to the base station antenna to solve the problem that the front antenna downtilt angle adjustment device faces more and more types of phase shifters and it is difficult to arrange the multi-way downtilt angle adjustment transmission device.

[0026] The embodiment of the present invention provides a flat multi-axis gear shifting transmission device, such as Figures 1 to 4 As shown, it comprises: a transmission mechanism 3, a shifting mechanism 4 and a plurality of transmission screws 1 arranged side by side. Each transmission screw 1 is provided with a locking member 2 for locking its rotation; the transmission mechanism 3 is movably arranged on one side of the transmission screw 1; the shifting mechanism 4 is movably arranged on one side of the transmission screw 1, abutting against the transmission mechanism 3, and is used to push the transmission mechanism 3 and to control the locking member 2 to lock or release the corresponding transmission screw 1; when the shifting mechanism 4 pushes the transmission mechanism 3 to be connected to one of the transmission screws 1 for transmission, the transmission mechanism 3 is separated from the other transmission screws 1, and the shifting mechanism 4 abuts against the locking member 2 corresponding to the transmission screw 1, so that the locking member 2 releases the corresponding transmission screw 1.

[0027] In this embodiment, the transmission mechanism 3 is used to transmit power. The transmission mechanism 3 is movably arranged on one side of the transmission screw 1, and is connected to the transmission screw 1 in a transmission manner (such as gears, chains or belts, etc.).

[0028] The shift mechanism 4 is also movably arranged on one side of the transmission screw 1 and abuts against the transmission mechanism 3. Its main function is to push the transmission mechanism 3 to achieve transmission connection with a specific transmission screw 1, and at the same time control the locking member 2 to lock or release the corresponding transmission screw 1.

[0029] The plurality of transmission screws 1 arranged side by side are the direct actuators for adjusting the antenna angle. Each transmission screw 1 is provided with a slider 11, which adjusts the antenna angle by linear motion along the screw. In addition, each transmission screw 1 is also provided with a locking member 2 for locking or releasing the transmission screw 1 to ensure that only the position that needs to be adjusted is adjusted, and the angle will not be accidentally changed due to external factors during the process.

[0030] During operation, when the angle of the phase shifter on a specific antenna needs to be adjusted, the shift mechanism 4 will move to the transmission screw 1 corresponding to the phase shifter, and push the transmission mechanism 3 to achieve transmission connection with the transmission screw 1. At this time, the transmission mechanism 3 is separated from other transmission screws 1 to ensure that only the target phase shifter is adjusted.

[0031] While the shift mechanism 4 pushes the transmission mechanism 3 to connect with the transmission screw 1, the shift mechanism 4 also abuts against the locking member 2 corresponding to the transmission screw 1, so that the locking member 2 loosens the corresponding transmission screw 1. In this way, the slider 11 on the transmission screw 1 can move freely under the drive of the transmission mechanism 3, thereby driving the phase shifter to move, and realizing the adjustment of the angle of the phase shifter on the antenna.

[0032] Once the transmission mechanism 3 is connected to the transmission screw 1 and the locking member 2 is released, the transmission mechanism 3 can drive the slider 11 on the transmission screw 1 to move linearly along the screw 1 in some way (such as motor drive). The movement of the slider 11 will change the position of the phase shifter, thereby achieving the purpose of adjustment.

[0033] When the phase shifter is adjusted, the shift mechanism 4 will move away from the transmission screw 1, and the locking member 2 will re-lock the transmission screw 1 to ensure that the phase shifter will not be accidentally changed due to external factors.

[0034] The flat multi-axis shift transmission device provided by the present invention realizes precise control of multiple frequency band units and phase shifters through multiple transmission screws 1 arranged side by side, a movable transmission mechanism 3 and a shift mechanism 4. When the shift mechanism 4 pushes the transmission mechanism 3 to connect with a certain transmission screw 1, the transmission mechanism 3 will automatically separate from the other transmission screws 1, and the shift mechanism 4 will abut against the locking piece 2 of the corresponding transmission screw 1 to loosen it, thereby realizing the functions of shifting and angle adjustment. This design not only optimizes the spatial layout inside the antenna, but also improves the transmission efficiency and adjustment accuracy.

[0035] In some embodiments, Figures 1 to 4 As shown, each transmission screw 1 is provided with a transmission assembly connected thereto, and the locking member 2 is used to lock the corresponding transmission assembly to rotate; the transmission mechanism 3 includes: a transmission rod 31 and a shift gear, the shift gear is slidably arranged on the transmission rod 31, and the transmission rod 31 is connected to the shift gear; the shift mechanism 4 abuts against the shift gear, and is used to adjust the position of the shift gear on the transmission rod 31; when the shift mechanism 4 pushes the shift gear to be connected to the transmission assembly, the shift mechanism 4 abuts against the locking member 2 corresponding to the transmission screw 1, so that the locking member 2 releases the corresponding transmission assembly.

[0036] Specifically, each transmission screw 1 is provided with a transmission assembly connected thereto. This transmission assembly may be a gear, a pulley or other forms of transmission elements, which is used to transmit the power of the transmission mechanism 3 to the transmission screw 1. The locking member 2 is used to lock the rotation of the corresponding transmission assembly to ensure that the transmission assembly can remain stationary when the angle of the phase shifter on the antenna does not need to be adjusted to prevent accidental rotation caused by external factors. The transmission mechanism 3 includes a transmission rod 31 and a shift gear. The transmission rod 31 is the main transmission component, which realizes rotational motion in some way. The shift gear can be slidably arranged on the transmission rod 31 and is connected to the transmission rod 31. The shift gear can move on the transmission rod 31 while maintaining a transmission relationship with the transmission rod 31. The main function of the shift gear is to serve as a connecting bridge between the transmission mechanism 3 and the transmission assembly. When the shift mechanism 4 pushes the shift gear to move to a position corresponding to a specific transmission assembly, the shift gear will be connected to the transmission assembly to transmit power. The shift mechanism 4 abuts against the shift gear to adjust the position of the shift gear on the transmission rod 31. While the shift mechanism 4 pushes the shift gear to be connected to the transmission assembly, the shift mechanism 4 also abuts against the locking member 2 corresponding to the transmission screw 1, so that the locking member 2 releases the corresponding transmission assembly. In this way, the transmission assembly can rotate freely under the drive of the shift gear to adjust the angle of the phase shifter on the antenna.

[0037] In the initial state, all transmission components are locked by the locking member 2 and cannot rotate.

[0038] When the angle of the phase shifter on the antenna needs to be adjusted, the shift mechanism 4 will move to the transmission screw 1 corresponding to the phase shifter, and push the shift gear to achieve transmission connection with the transmission assembly on the transmission screw 1.

[0039] At the same time, the shift mechanism 4 will abut against the locking member 2 corresponding to the transmission screw 1, so that the locking member 2 releases the corresponding transmission assembly.

[0040] Driven by the shift gear, the transmission assembly starts to rotate and changes the angle of the phase shifter on the antenna in some way (such as the linear motion of the slider 11 along the screw).

[0041] When the angle adjustment is completed, the shift mechanism 4 will move away from the transmission screw 1, and the locking member 2 will relock the transmission assembly to ensure that the angle of the phase shifter on the antenna will not be accidentally changed due to external factors.

[0042] In some embodiments, Figures 1 to 4 As shown, the transmission mechanism 3 further includes: a first transmission knob 34 and a first bevel gear 35. The first bevel gear 35 is slidably disposed on the transmission rod 31, and the first transmission knob 34 is sequentially transmission-connected with the transmission rod 31 and the shift gear through the first bevel gear 35.

[0043] In this embodiment, the first transmission knob 34 serves as an interface for user operation. The transmission mechanism 3 can be driven to work by rotating the first transmission knob 34. The first transmission knob 34 is connected to the transmission rod 31 through the first bevel gear 35 to control the rotation of the shift gear. The first bevel gear 35 is coaxially arranged on the transmission rod 31, and the first bevel gear 35 has a conical tooth surface, which can be meshed with the corresponding tooth surface on the first transmission knob 34. The first bevel gear 35 is slidably arranged on the transmission rod 31.

[0044] In the initial state, the transmission mechanism 3 is in a stationary state, and the first transmission knob 34 and the first bevel gear 35 are not subjected to external force. The shift gear is located at the initial position on the transmission rod 31, and maintains a certain distance from the transmission components on all the transmission screws 1, and no transmission connection is achieved.

[0045] The user rotates the first transmission knob 34, and the rotational motion is transmitted to the first bevel gear 35 through the first transmission knob 34, and the first bevel gear 35 transmits the rotational motion to the transmission rod 31. The transmission rod 31 is driven by the first bevel gear 35 and starts to rotate. Since there is a transmission relationship between the first bevel gear 35 and the shift gear, the rotation or movement of the transmission rod 31 drives the shift gear to rotate on the transmission rod 31.

[0046] When the shift gear slides to a position corresponding to the transmission assembly on the specific transmission screw 1, the two are connected in transmission.

[0047] When the shift gear and the transmission assembly are connected in transmission, the shift mechanism 4 will contact the locking member 2 corresponding to the transmission screw 1 to release the corresponding transmission assembly. The transmission assembly can rotate or move freely under the drive of the shift gear to adjust the angle of the phase shifter on the antenna.

[0048] When the angle adjustment is completed, the user stops rotating the first transmission knob 34. The user can move away from the transmission screw 1 through the shift mechanism 4, and the locking member 2 will relock the transmission assembly to ensure that the angle of the phase shifter on the antenna will not be accidentally changed due to external factors.

[0049] In some embodiments, Figures 1 to 4As shown, multiple transmission screws 1 are divided into two groups, and the transmission mechanism 3 is provided with two shift gears, namely a first shift gear 32 and a second shift gear 33; the first shift gear 32 is arranged at the first end of the transmission rod 31, and the second shift gear 33 is arranged at the second end of the transmission rod 31; the shift mechanism 4 abuts against the first shift gear 32 and the second shift gear 33 to simultaneously adjust the positions of the first shift gear 32 and the second shift gear 33 on the transmission rod 31; in the process of the shift mechanism 4 simultaneously pushing the first shift gear 32 and the second shift gear 33 to move, the first shift gear 32 moves at a position corresponding to one group of transmission screws 1, and the second shift gear 33 moves at a position corresponding to the other group of transmission screws 1.

[0050] Specifically, a plurality of transmission screws 1 are divided into two groups, and each group of transmission screws 1 is arranged side by side, and is used to control the angle adjustment of different frequency band units or phase shifters respectively. The transmission mechanism 3 is provided with two shift gears, the first shift gear 32 is arranged at the first end (for example, the left end) of the transmission rod 31, and the second shift gear 33 is arranged at the second end (for example, the right end) of the transmission rod 31. The transmission rod 31 is the main transmission component, connecting and driving the two shift gears to rotate. The shift mechanism 4 is in contact with the first shift gear 32 and the second shift gear 33, and is used to simultaneously adjust the positions of the two shift gears on the transmission rod 31. The design of the shift mechanism 4 allows it to act on the two shift gears at the same time, ensuring that they can move synchronously and achieve transmission connection with the corresponding transmission screws 1.

[0051] Initially, the transmission mechanism 3 is in a stationary state, and the first shift gear 32 and the second shift gear 33 are both located at the initial positions on the transmission rod 31. The transmission components on the two sets of transmission screws 1 are locked by the locking member 2 and cannot rotate.

[0052] The user moves the shift mechanism 4 in some way (such as manual operation or electric drive) to make it abut against the first shift gear 32 and the second shift gear 33 at the same time. Under the push of the shift mechanism 4, the first shift gear 32 and the second shift gear 33 move on the transmission rod 31 respectively.

[0053] When the first shift gear 32 moves to a position corresponding to one of the transmission screws 1, it realizes transmission connection with the transmission assembly on the transmission screw 1; at this time, the second shift gear 33 does not correspond to any transmission screw 1. When the second shift gear 33 moves to a position corresponding to one of the transmission screws 1, it realizes transmission connection with the transmission assembly on the transmission screw 1; at this time, the first shift gear 32 does not correspond to any transmission screw 1.

[0054] When the shift gear and the transmission assembly are connected in transmission, the shift mechanism 4 will also contact the corresponding locking member 2 to release the corresponding transmission assembly. In this way, the transmission assembly on the transmission screw 1 can rotate under the drive of the shift gear to adjust the angle of the phase shifter on the antenna.

[0055] In some embodiments, Figures 1 to 4 As shown, the transmission assembly includes: a first transmission gear 12 and a second bevel gear 13; the first transmission gear 12 is meshed with the second bevel gear 13, and the locking member 2 is arranged on the second bevel gear 13; the shift mechanism 4 is suitable for driving the locking member 2 to abut or separate from the second bevel gear 13 to lock or release the second bevel gear 13.

[0056] Specifically, the first transmission gear 12 is usually connected to the transmission rod 31 or other transmission components, and is responsible for transmitting the rotational power. The first transmission gear 12 forms a meshing relationship with the second bevel gear 13, so that the second bevel gear 13 can be driven to rotate. The second bevel gear 13 has a conical tooth surface, which can be tightly meshed with the tooth surface of the first transmission gear 12 to achieve stable transmission of power. A locking member 2 is provided on the second bevel gear 13, and the locking member 2 can abut or separate from a certain part of the second bevel gear 13 as needed, so as to lock or release the second bevel gear 13.

[0057] The shift mechanism 4 is an interface for users to operate the transmission assembly, which is usually connected to the locking member 2 or can drive the locking member 2 to move. By operating the shift mechanism 4, the user can control the abutment or separation state of the locking member 2 and the second bevel gear 13, thereby realizing the locking or releasing operation of the transmission system.

[0058] In some embodiments, Figures 1 to 4 As shown, the shift mechanism 4 includes: a shift frame 41. The shift frame 41 is slidably disposed on the transmission rod 31; a first end of the shift frame 41 abuts against the first shift gear 32, for adjusting the position of the first shift gear 32 on the transmission rod 31; a second end of the shift frame 41 abuts against the second shift gear 33, for adjusting the position of the second shift gear 33 on the transmission rod 31.

[0059] In this embodiment, when the user needs to adjust the position of the first shift gear 32 or the second shift gear 33, the shift frame 41 is moved in some way (such as manual operation, electric drive, etc.). The shift frame 41 slides along the transmission rod 31, and its two abutting ends gradually approach and contact the first shift gear 32 and the second shift gear 33 respectively. As the shift frame 41 continues to move, it applies pressure to the first shift gear 32 and the second shift gear 33, so that they move to the desired position along the transmission rod 31. During the movement of the shift frame 41, it interacts with the locking member 2, thereby realizing the locking or releasing operation of the corresponding transmission assembly.

[0060] Among them, a synchronous rack 411 is formed on the shift frame 41; the shift mechanism 4 also includes: a second transmission knob 42 and a third bevel gear 43; the third bevel gear 43 is slidably arranged on the transmission rod 31, and the side of the third bevel gear 43 is formed with a thread adapted to the synchronous rack 411, and the second transmission knob 42 is transmission-connected to the shift mechanism 4 through the third bevel gear 43.

[0061] A synchronization rack 411 is formed on the shift frame 41, which is a toothed structure extending along the length direction of the shift frame 41. The design of the synchronization rack 411 enables the shift frame 41 to be connected to the third bevel gear 43 through transmission. The second transmission knob 42 is the main interface for users to operate the shift mechanism 4, and it is usually designed as a rotatable component. The user drives the third bevel gear 43 to move by rotating the second transmission knob 42, thereby adjusting the position of the shift frame 41. The side of the third bevel gear 43 is formed with a thread that is compatible with the synchronization rack 411, so that when the third bevel gear 43 moves on the transmission rod 31, it can be tightly engaged with the synchronization rack 411, thereby driving the shift frame 41 to move.

[0062] When the user needs to adjust the position of the shift frame 41, the second transmission knob 42 can be rotated. The rotation of the second transmission knob 42 drives the third bevel gear 43 to move on the transmission rod 31. Since the threaded portion of the third bevel gear 43 is tightly meshed with the synchronous rack 411, when the third bevel gear 43 moves, it drives the shift frame 41 to slide along the transmission rod 31. As the shift frame 41 moves, its two abutting ends gradually approach and contact the first shift gear 32 and the second shift gear 33 respectively. The user can adjust the position of the shift frame 41 by continuing to rotate the second transmission knob 42 until the first shift gear 32 and the second shift gear 33 are adjusted to the desired position.

[0063] In one example, if Figures 1 to 4As shown, abutment members 412 are formed at both ends (left and right) of the shift frame 41; when the shift frame 41 pushes the first shift gear 32 or the second shift gear 33 to be connected to the transmission assembly, the abutment member 412 presses the locking member 2 corresponding to the transmission assembly to make the locking member 2 release the transmission assembly.

[0064] When the transmission screw 1 on the left side of the shift mechanism 4 needs to be controlled, the abutment 412 at the left end of the shift frame 41 controls the first shift gear 32, the first shift gear 32 is aligned with the transmission assembly of the corresponding transmission screw 1, and the abutment 412 presses the locking member 2 corresponding to the transmission assembly, so that the locking member 2 releases the transmission assembly. At this time, the transmission mechanism 3 can drive the transmission assembly to rotate through the first shift gear 32, so that the slide on the transmission screw 1 can move, thereby realizing the adjustment of the transmission screw 1 on the left side of the shift mechanism 4.

[0065] When the transmission screw 1 on the right side of the shift mechanism 4 needs to be controlled, the abutment 412 at the right end of the shift frame 41 controls the second shift gear 33, the second shift gear 33 is aligned with the transmission assembly of the corresponding transmission screw 1, and the abutment 412 presses the locking member 2 corresponding to the transmission assembly, so that the locking member 2 releases the transmission assembly. At this time, the transmission mechanism 3 can drive the transmission assembly to rotate through the second shift gear 33, so that the slide on the transmission screw 1 can move, thereby realizing the adjustment of the transmission screw 1 on the right side of the shift mechanism 4.

[0066] Repeat the above-mentioned left or right shifting steps, when the first shift gear 32 and the second shift gear 33 are not matched with any transmission components, the transmission components of all the transmission screws 1 are locked.

[0067] In some embodiments, Figures 1 to 6 As shown, the locking member 2 includes: a retaining card 21 and an elastic member 22. The retaining card 21 is connected to the elastic member 22, and the retaining card 21 is squeezed by the elastic member 22 to lock the transmission assembly; the abutment member 412 is suitable for pressing the retaining card 21 to lock or release the transmission assembly.

[0068] Specifically, the anti-retraction card 21 has one or more protrusions or claws, which can be inserted into the corresponding notches or holes of the transmission component to prevent the transmission component from transmitting. The shape and size of the anti-retraction card 21 are usually determined according to the specific design of the transmission component to ensure a close fit and effective locking between them. The elastic member 22 (such as a spring, an elastic sheet, etc.) is connected to the anti-retraction card 21 to provide the necessary extrusion force so that the anti-retraction card 21 can fit tightly on the transmission component and remain in the locked position. The elasticity and stiffness of the elastic member 22 are usually determined according to the requirements of the transmission system to ensure that sufficient force and stability can be provided during the locking and releasing process.

[0069] When the transmission assembly needs to be locked, the anti-retraction card 21 is pushed toward the transmission assembly by the squeezing action of the elastic member 22 and inserted into its corresponding notch or hole. At this time, the protrusion or claw of the anti-retraction card 21 is tightly matched with the notch or hole of the transmission assembly, thereby achieving the locking of the transmission assembly. When the transmission assembly needs to be released, the abutment member 412 (such as the corresponding part on the shift frame 41) presses the anti-retraction card 21. This pressing action enables the anti-retraction card 21 to overcome the squeezing force of the elastic member 22, thereby withdrawing it from the notch or hole of the transmission assembly. Once the anti-retraction card 21 is released, the transmission assembly can be transmitted.

[0070] Based on the above embodiments, in some embodiments, such as Figures 1 to 6 As shown, it also includes: a box body 5, the box body 5 forms a accommodating cavity, and the locking member 2, the transmission mechanism 3 and the shifting mechanism 4 are all arranged in the accommodating cavity; the box body 5 is provided with an adjustment hole 51 opposite to the locking member 2, and the adjustment hole 51 is suitable for inserting a workpiece to allow the locking member 2 to loosen the transmission screw 1.

[0071] The position, shape and size of the adjustment hole 51 are usually determined according to the specific design of the locking member 2 to ensure that a quick adjustment tool (such as a hexagonal screwdriver) can be smoothly inserted and effectively lift the anti-retraction card 21.

[0072] In these embodiments, a quick adjustment tool (such as a hexagonal screwdriver) is used as an adjustment tool, which is inserted into the adjustment hole 51 to push up the stopper 21, thereby unlocking the transmission assembly. The selection of the quick adjustment tool is usually determined by its size, shape and material to ensure that it can fit tightly with the adjustment hole 51 and effectively transmit force.

[0073] When the transmission assembly needs to be unlocked, the user only needs to insert the quick adjustment tool into the adjustment hole 51 and forcefully lift the anti-retraction card 21. This operation will cause the anti-retraction card 21 to rise up to overcome the squeezing force of the elastic member 22, thereby withdrawing it from the notch or hole of the transmission assembly or the transmission screw 1. Once the anti-retraction card 21 is released, the transmission assembly or the transmission screw 1 can be freely moved or adjusted.

[0074] The embodiment of the present invention further provides a base antenna, which includes a flat multi-axis gear shifting transmission device, such as Figures 1 to 4As shown, the flat multi-axis shift transmission device comprises: a transmission mechanism 3, a shift mechanism 4 and a plurality of transmission screws 1 arranged side by side. Each transmission screw 1 is provided with a locking member 2 for locking its rotation; the transmission mechanism 3 is movably arranged on one side of the transmission screw 1; the shift mechanism 4 is movably arranged on one side of the transmission screw 1, abutting against the transmission mechanism 3, and is used to push the transmission mechanism 3 and to control the locking member 2 to lock or release the corresponding transmission screw 1; when the shift mechanism 4 pushes the transmission mechanism 3 to be transmission-connected with one of the transmission screws 1, the transmission mechanism 3 is separated from the other transmission screws 1, and the shift mechanism 4 abuts against the locking member 2 corresponding to the transmission screw 1, so that the locking member 2 releases the corresponding transmission screw 1.

[0075] In this embodiment, the transmission mechanism 3 is used to transmit power. The transmission mechanism 3 is movably arranged on one side of the transmission screw 1, and is connected to the transmission screw 1 in a transmission manner (such as gears, chains or belts, etc.).

[0076] The shift mechanism 4 is also movably arranged on one side of the transmission screw 1 and abuts against the transmission mechanism 3. Its main function is to push the transmission mechanism 3 to achieve transmission connection with a specific transmission screw 1, and at the same time control the locking member 2 to lock or release the corresponding transmission screw 1.

[0077] The plurality of transmission screws 1 arranged side by side are the direct actuators for adjusting the antenna angle. Each transmission screw 1 is provided with a slider 11, which adjusts the antenna angle by linear motion along the screw. In addition, each transmission screw 1 is also provided with a locking member 2 for locking or releasing the transmission screw 1 to ensure that only the position that needs to be adjusted is adjusted, and the angle will not be accidentally changed due to external factors during the process.

[0078] During operation, when the angle of the phase shifter on a specific antenna needs to be adjusted, the shift mechanism 4 will move to the transmission screw 1 corresponding to the phase shifter, and push the transmission mechanism 3 to achieve transmission connection with the transmission screw 1. At this time, the transmission mechanism 3 is separated from other transmission screws 1 to ensure that only the target phase shifter is adjusted.

[0079] While the shift mechanism 4 pushes the transmission mechanism 3 to connect with the transmission screw 1, the shift mechanism 4 also abuts against the locking member 2 corresponding to the transmission screw 1, so that the locking member 2 loosens the corresponding transmission screw 1. In this way, the slider 11 on the transmission screw 1 can move freely under the drive of the transmission mechanism 3, thereby driving the phase shifter to move, and realizing the adjustment of the angle of the phase shifter on the antenna.

[0080] Once the transmission mechanism 3 is connected to the transmission screw 1 and the locking member 2 is released, the transmission mechanism 3 can drive the slider 11 on the transmission screw 1 to move linearly along the screw 1 in some way (such as motor drive). The movement of the slider 11 will change the position of the phase shifter, thereby achieving the purpose of adjustment.

[0081] When the phase shifter is adjusted, the shift mechanism 4 will move away from the transmission screw 1, and the locking member 2 will re-lock the transmission screw 1 to ensure that the phase shifter will not be accidentally changed due to external factors.

[0082] The base station antenna provided by the present invention realizes precise control of multiple frequency band units and phase shifters through multiple transmission screws 1 arranged side by side, a movable transmission mechanism 3 and a shift mechanism 4. When the shift mechanism 4 pushes the transmission mechanism 3 to connect with a certain transmission screw 1, the transmission mechanism 3 will automatically separate from the other transmission screws 1, and the shift mechanism 4 will abut against the locking piece 2 of the corresponding transmission screw 1 to loosen it, thereby realizing the functions of shifting and angle adjustment. This design not only optimizes the spatial layout inside the antenna, but also improves the transmission efficiency and adjustment accuracy.

[0083] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A flat multi-axis shift transmission device, characterized in that: include: A plurality of transmission screws arranged side by side, each of the transmission screws being provided with a locking member for locking the rotation thereof; A transmission mechanism, movably disposed on one side of the transmission screw; A shift mechanism, movably disposed on one side of the transmission screw, abutting against the transmission mechanism, for pushing the transmission mechanism and for controlling the locking member to lock or release the corresponding transmission screw; When the shift mechanism pushes the transmission mechanism to be transmission-connected with one of the transmission screws, the transmission mechanism is separated from the other transmission screws, and the shift mechanism abuts against the locking member corresponding to the transmission screw, so that the locking member releases the corresponding transmission screw.

2. The flat-lay multi-axis shift transmission device according to claim 1, characterized in that: Each of the transmission screws is provided with a transmission assembly transmission-connected thereto, and the locking member is used to lock the corresponding transmission assembly from rotating; The transmission mechanism comprises: a transmission rod and a shift gear, wherein the shift gear is slidably arranged on the transmission rod, and the transmission rod is transmission-connected with the shift gear; The shift mechanism abuts against the shift gear to adjust the position of the shift gear on the transmission rod; when the shift mechanism pushes the shift gear to be connected to the transmission assembly, the shift mechanism abuts against the locking piece corresponding to the transmission screw to allow the locking piece to release the corresponding transmission assembly.

3. The flat-lay multi-axis shift transmission device according to claim 2, characterized in that: The transmission mechanism further includes: a first transmission knob and a first bevel gear; The first bevel gear is slidably disposed on the transmission rod, and the first transmission knob is sequentially transmission-connected with the transmission rod and the shift gear through the first bevel gear.

4. The flat-lay multi-axis shift transmission device according to claim 2, characterized in that: The plurality of transmission screws are divided into two groups, and the transmission mechanism is provided with two shift gears, namely a first shift gear and a second shift gear; The first shift gear is arranged at the first end of the transmission rod, and the second shift gear is arranged at the second end of the transmission rod; the shift mechanism abuts against the first shift gear and the second shift gear to simultaneously adjust the positions of the first shift gear and the second shift gear on the transmission rod; When the shift mechanism simultaneously pushes the first shift gear and the second shift gear to move, the first shift gear moves at a position corresponding to one group of the transmission screws, and the second shift gear moves at a position corresponding to another group of the transmission screws.

5. The flat-lay multi-axis shift transmission device according to claim 2, characterized in that: The transmission assembly comprises: a first transmission gear and a second bevel gear; The first transmission gear is meshed with the second bevel gear, and the locking member is arranged on the second bevel gear; the shift mechanism is suitable for driving the locking member to abut against or separate from the second bevel gear to lock or release the second bevel gear.

6. The flat-lay multi-axis shift transmission device according to claim 4, characterized in that: The shifting mechanism comprises: A shift frame is slidably arranged on the transmission rod; a first end of the shift frame abuts against the first shift gear for adjusting the position of the first shift gear on the transmission rod; a second end of the shift frame abuts against the second shift gear for adjusting the position of the second shift gear on the transmission rod.

7. The flat-lay multi-shaft shift transmission device according to claim 6, characterized in that: A synchronous rack is formed on the shift frame; the shift mechanism further comprises: a second transmission knob and a third bevel gear; The third bevel gear is slidably arranged on the transmission rod, a thread matching the synchronous rack is formed on the side surface of the third bevel gear, and the second transmission knob is transmission-connected to the shift mechanism through the third bevel gear.

8. The flat-lay multi-shaft shift transmission device according to claim 6, characterized in that: Abutment members are formed at both ends of the shift frame; When the shift frame pushes the first shift gear or the second shift gear to be in transmission connection with the transmission assembly, the abutment member presses the locking member corresponding to the transmission assembly so that the locking member releases the transmission assembly.

9. The flat-lay multi-shaft shift transmission device according to claim 8, characterized in that: The locking member includes: a stopper and an elastic member. The elastic member is connected to the anti-retraction card, and the anti-retraction card is squeezed by the elastic member to lock the transmission assembly; the abutment member is suitable for pressing the anti-retraction card to lock or release the transmission assembly.

10. A base station antenna, characterized in that: It comprises a flat-type multi-shaft shift transmission device as described in any one of claims 1-9.

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