CN117335150B - 5G antenna - Google Patents
5G antenna Download PDFInfo
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- CN117335150B CN117335150B CN202311583543.6A CN202311583543A CN117335150B CN 117335150 B CN117335150 B CN 117335150B CN 202311583543 A CN202311583543 A CN 202311583543A CN 117335150 B CN117335150 B CN 117335150B
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- 230000007246 mechanism Effects 0.000 claims abstract description 118
- 230000008859 change Effects 0.000 claims description 7
- 238000000034 method Methods 0.000 description 17
- 230000008569 process Effects 0.000 description 13
- 238000010586 diagram Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000009434 installation Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000002452 interceptive effect Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
- H01Q3/02—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical movement of antenna or antenna system as a whole
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
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Abstract
The application relates to the technical field of supports combined with antennas, in particular to a 5G antenna. The 5G antenna comprises an antenna and an antenna downtilt adjusting mechanism, wherein the antenna downtilt adjusting mechanism comprises: a first angle adjustment mechanism for deviating the antenna from a 0 ° downtilt angle; and a second angle adjusting mechanism for making the antenna approach to the 0 DEG downtilt angle. The first angle adjusting mechanism adjusts the antenna downward inclination angle by taking the first rotation angle as a step length, the second angle adjusting mechanism adjusts the antenna downward inclination angle by taking the second rotation angle as a step length, and the first rotation angle is larger than the second rotation angle. The 5G antenna provided by the application is not easy to interfere with the services of other antennas when the downward inclination angle of the 5G antenna is adjusted.
Description
Technical Field
The application relates to the technical field of supports combined with antennas, in particular to a 5G antenna.
Background
In modern communication technology, the installation and adjustment of 5G antennas is a key element to ensure efficient network coverage. Antennas are typically mounted on high towers and require adjustment of their downtilt angle according to network requirements. In the prior art, such adjustment typically involves physical manipulation, including loosening a screw between the antenna and the antenna mast, and then manually adjusting the antenna position to change its downtilt angle.
The manual adjustment methods of the prior art lack accuracy, particularly when lifting the tilt angle, the force exerted by the arm is difficult to control accurately, which may result in excessive adjustment amplitude, affecting signal coverage and possibly interfering with the service of other antennas.
Therefore, the downtilt angle of the 5G antenna in the prior art is not easy to accurately adjust, and is easy to interfere with the service of other antennas.
Disclosure of Invention
In order to solve the above technical problems or at least partially solve the above technical problems, the present application provides a 5G antenna, which is not easy to interfere with services of other antennas when adjusting the downtilt angle of the 5G antenna.
The application provides a 5G antenna, which comprises an antenna and an antenna downtilt angle adjusting mechanism, wherein the antenna downtilt angle adjusting mechanism comprises:
A first angle adjustment mechanism for deviating the antenna from a 0 ° downtilt angle;
A second angle adjustment mechanism for bringing the antenna close to a 0 ° downtilt angle;
The first angle adjusting mechanism adjusts the antenna downward inclination angle by taking the first rotation angle as a step length, the second angle adjusting mechanism adjusts the antenna downward inclination angle by taking the second rotation angle as a step length, and the first rotation angle is larger than the second rotation angle.
Optionally, the antenna downtilt adjustment mechanism includes:
A fixing unit fixed on an external pole, the antenna being rotatably connected to the fixing unit to rotate around the fixing unit to change a downtilt angle of the antenna;
The tooth disc is fixed with the antenna, the tooth disc is provided with notch strips, the notch strips take the connection point of the antenna and the fixed unit as the center of a circle, and each notch of the notch strips is uniformly distributed on the common circumference according to a third rotation angle;
The third rotation angle is a common factor of the first rotation angle and the second rotation angle;
The tail end of the pusher dog mechanism matched with the notch is provided with guide surfaces and clamping surfaces with different orientations, so that the pusher dog mechanism can only move relative to the dental tray along the direction of the guide surfaces on the notch strip, and the dental tray is driven to move together when the pusher dog mechanism moves along the direction of the clamping surfaces;
the first angle adjustment mechanism includes:
The first handle is provided with a pusher dog mechanism, and the first lever stop structure limits the maximum angle of outward swing of the first handle from the initial position to be a first rotation angle;
the second angle adjustment mechanism includes:
The second handle is provided with a pusher dog mechanism, and the maximum angle of the second handle which swings outwards from the initial position of the second handle is limited to be a second rotation angle by the second lever stop structure;
The direction of outward swinging of the first handle from the initial position is opposite to the direction of outward swinging of the second handle from the initial position;
the finger mechanism is rotatable on either the first handle or the second handle to turn the direction of the finger mechanism guide surface and the caliper surface.
Alternatively, the guide surface and the clamping surface of the finger mechanism are opposite in orientation, and the clamping surface of the finger mechanism positioned on the first handle is identical in orientation to the clamping surface of the finger mechanism positioned on the second handle.
Optionally, the respectively arranged pusher dog mechanism comprises a lock rod, a reset spring and a limiting block, the first handle and the second handle respectively penetrate through the lock rod, one end of the lock rod is provided with a lock tongue matched with the notch, the lock tongue is provided with a guide surface and a caliper surface, and the other end of the lock rod is fixedly provided with the limiting block;
each handle is provided with a limiting groove matched with the limiting block of the lock rod, so that the orientation of the guide surface of each lock tongue is kept parallel to the circumference of the notch distribution;
one end of each handle is respectively provided with a return spring which is abutted to the lock rod, and the other end of each return spring is abutted to the corresponding handle.
Optionally, the first handle and the second handle are respectively provided with a safety mechanism for preventing the lock rod from moving, and the safety mechanism comprises a lock plate which can move into a path of the lock rod moving in a direction away from the dental tray so as to prevent the lock rod from moving.
Optionally, the first lever stop structure includes a clamp base and a screw, the swing path of the first handle is in the gap of the clamp base, the screw is screwed into the gap by a first distance to control the gap of the clamp base so that the maximum angle of the first handle swinging outwards from the initial position is a first rotation angle;
The second lever stop structure comprises a clamp base and a screw, wherein the swing path of the second handle is arranged in a gap of the clamp base, and the screw is screwed into the gap by a second distance to control the gap of the clamp base so that the maximum angle of the second handle swinging outwards from the initial position is a second rotation angle.
Optionally, the screws of the first and second bar stop structures are capable of adjusting the distance of screwing into the gap to control the maximum angle at which each handle can swing outwardly from its initial position.
Optionally, the first rotation angle is 3 ° and the second rotation angle is 2 °.
Compared with the prior art, the technical scheme provided by the application has the following advantages:
Since the change in downtilt directly affects the signal coverage of the antenna, the more the downtilt is typically offset by 0 °, the smaller the distance of signal coverage. Conversely, the distance covered by the signal is greatest when the lower tilt angle is closer to 0 °. The adjustment of the antenna downtilt needs to follow a specific rule. Under the condition that the antenna is positively arranged, namely, the antenna is used for transmitting signals to the ground, when the antenna downward inclination angle is pressed down, the adjustment amplitude is larger than the amplitude of the antenna upward inclination angle, and the obvious adjustment effect can be achieved. When the antenna is lifted up, the adjustment amplitude is smaller than the amplitude of the antenna downward inclination, so that the interference to the service of other antennas caused by the increase of the coverage distance of the antenna can be avoided.
Under the situation that the antenna is inverted, namely, the antenna sends a signal to a high floor, when the antenna downward inclination angle is pressed down, the adjustment amplitude is smaller than the amplitude of the antenna upward inclination angle, so that the phenomenon that the service of other antennas is interfered due to the fact that the coverage distance of the antenna is increased can be avoided. When the antenna is lifted up, the adjusting amplitude is larger than the amplitude of the antenna lifted up, so that the obvious adjusting effect can be achieved.
In a first aspect, the present application provides a 5G antenna, wherein the antenna downtilt adjustment mechanism is capable of providing different adjustment steps according to a situation deviating from a downtilt angle of 0 ° and approaching a downtilt angle of 0 °, respectively, both in a case of normal installation of the antenna and in a case of inverted installation of the antenna. The antenna downtilt angle can be adjusted with a larger step length when the antenna downtilt angle deviates from the 0-degree downtilt angle, so that a relatively obvious adjusting effect is achieved, and the antenna downtilt angle can be adjusted with a smaller step length when the antenna downtilt angle is adjusted to be close to the 0-degree downtilt angle, so that the coverage distance of the antenna is prevented from being increased, and the service of other antennas is prevented from being interfered.
In a second aspect, the specific structure of the antenna downtilt angle adjusting mechanism provided by the application can enable a tower crane to accurately control the downtilt angle of the antenna respectively in different step sizes by only pulling the first handle and the second handle respectively. The tower worker can adjust the downward inclination angle of the antenna by hand feeling without loosening the screw, so that the situation that the adjustment of the antenna does not meet the design standard can be avoided, and the possibility of interfering other antennas is reduced.
In a third aspect, the present application provides a 5G antenna, wherein the finger mechanism of the first handle and the finger mechanism of the second handle form an interlocking structure by arranging the relative relationship of the guide surface and the clamping surface of the finger mechanism of the first handle and the finger mechanism of the second handle. The finger mechanism of the second handle is capable of locking the dental tray when the first handle is moved relative to the finger mechanism thereof. The finger mechanism of the first handle is capable of locking the dental tray when the second handle is moved relative to the finger mechanism thereof. Therefore, the phenomenon that the tooth disc is driven to move when the guide surface moves along the grooved strip is avoided, deviation is avoided when the antenna is adjusted in the downward inclination angle, and the adjustment precision of the downward inclination angle of the antenna is higher.
In a fourth aspect, the safety structure provided by the application can lock the downward inclination angle of the antenna, and avoid the chuck moving relative to the pusher dog mechanism due to the dead weight of the antenna, thereby avoiding the change of the downward inclination angle.
In a fifth aspect, the lever stop structure provided by the application can adjust the swing amplitude, and after the first rotation angle or the second rotation angle is used as a step length for adjustment, the step length for adjusting the downward inclination angle can be changed by changing the screw-in distance, so that a combined structure similar to a coarse focusing spiral and a fine focusing spiral is formed, and the accuracy for adjusting the downward inclination angle can be further improved.
Drawings
Fig. 1 is a schematic structural diagram of a 5G antenna according to an embodiment of the present application;
fig. 2 is a second schematic diagram of a 5G antenna according to an embodiment of the present application;
fig. 3 is a schematic diagram of a portion of a 5G antenna according to an embodiment of the present application;
fig. 4 is a second schematic diagram of a portion of a 5G antenna according to an embodiment of the present application;
fig. 5 is a third schematic diagram of a portion of a 5G antenna according to an embodiment of the present application;
Fig. 6 is a schematic diagram of a portion of a 5G antenna according to an embodiment of the present application.
1, An antenna; 2. an antenna downtilt adjustment mechanism; 21. a first angle adjustment mechanism; 211. a first handle; 212. a first rod stop structure;
22. a second angle adjustment mechanism; 221. a second handle; 222. a second rod stop structure;
23. a fixing unit; 24. a dental tray; 241. grooving the strip; 2411. grooving;
25. a pusher dog mechanism; 251. a guide surface; 252. a caliper surface; 253. a lock lever; 2531. a bolt; 254. a return spring; 255. a limiting block;
26. A locking plate; 27. a clamp base; 28. a screw; 29. and a limit groove.
Detailed Description
The technical scheme of the application will be described below with reference to the accompanying drawings.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, but the present application may be practiced otherwise than as described herein; it will be apparent that the embodiments in the specification are only some, but not all, embodiments of the application. It should be noted that, without conflict, the embodiments of the present application and features in the embodiments may be combined with each other.
As shown in fig. 1 and 2, the present application provides a 5G antenna 1, including an antenna 1 and an antenna downtilt mechanism 2, the antenna downtilt mechanism 2 including:
a first angle adjusting mechanism 21 for deviating the antenna 1 from a 0 ° downtilt angle;
a second angle adjustment mechanism 22 for bringing the antenna 1 close to a 0 ° downtilt angle;
the first angle adjusting mechanism 21 adjusts the downtilt angle of the antenna 1 with a first rotation angle as a step length, and the second angle adjusting mechanism 22 adjusts the downtilt angle of the antenna 1 with a second rotation angle as a step length, wherein the first rotation angle is larger than the second rotation angle.
In the embodiment of the application, the first rotation angle is 3 degrees, and the second rotation angle is 2 degrees.
The beneficial effect is that, because the change of the downtilt angle directly affects the signal coverage of the antenna 1, the more the downtilt angle deviates from 0 ° in general, the smaller the distance of signal coverage. Conversely, the distance covered by the signal is greatest when the lower tilt angle is closer to 0 °. The adjustment of the downtilt of the antenna 1 needs to follow a specific rule. Under the condition that the antenna 1 is assembled positively, namely, the condition that the antenna 1 transmits signals to the ground, when the antenna 1 is pressed down, the adjusting amplitude is larger than the amplitude of the antenna 1 when the antenna 1 is lifted up, so that a relatively obvious adjusting effect can be achieved. When the antenna 1 is lifted up, the adjustment amplitude is smaller than the amplitude of the downward inclination of the antenna 1, so that the interference to the service of other antennas 1 caused by the increase of the coverage distance of the antenna 1 can be avoided.
In the case of the antenna 1 being inverted, that is, in the case of the antenna 1 signaling to a high floor, when the antenna 1 is pushed down, the adjustment amplitude is smaller than the amplitude of the antenna 1 being lifted up to the lower tilt angle, so that the interference to the services of other antennas 1 due to the increase of the coverage distance of the antenna 1 can be avoided. When the antenna 1 is lifted up, the adjusting amplitude is larger than the amplitude of the antenna 1.
The embodiment of the application provides a 5G antenna 1, wherein an antenna downtilt adjusting mechanism 2 can provide different adjusting step sizes according to the situation of deviating from 0 degree downtilt and approaching 0 degree downtilt respectively no matter in the case of normal installation of the antenna 1 and inverted installation of the antenna 1. The down dip angle of the antenna 1 can be adjusted with a larger step length when the down dip angle of the antenna 1 deviates from the 0-degree down dip angle, so that a relatively obvious adjusting effect can be achieved, and the down dip angle can be adjusted with a smaller step length when the down dip angle of the antenna 1 is adjusted to be close to the 0-degree down dip angle, so that the coverage distance of the antenna 1 is increased, and the service of other antennas 1 is prevented from being interfered.
Specifically, the antenna downtilt adjusting mechanism 2 includes:
A fixing unit 23, the fixing unit 23 being fixed to an external rod, the antenna 1 being rotatably connected to the fixing unit 23 to rotate around the fixing unit 23 to change a downward inclination angle of the antenna 1;
The dental tray 24, the antenna 1 is fixed to the dental tray 24, the dental tray 24 is provided with notch strips 241, the notch strips 241 take the connection point of the antenna 1 and the fixing unit 23 as the center of a circle, and each notch 2411 of the notch strips 241 is uniformly distributed on a common circumference according to a third rotation angle;
The third rotation angle is a common factor of the first rotation angle and the second rotation angle;
A finger mechanism 25 for engaging with the notch 2411, the finger mechanism 25 having a guide surface 251 and a clamping surface 252 of different orientations at the end engaged with the notch 2411, such that the finger mechanism 25 can move relative to the dental tray 24 only on the notch strip 241 in the direction in which the guide surface 251 faces and moves the dental tray 24 together when the finger mechanism 25 moves in the direction in which the clamping surface 252 faces;
referring to fig. 3, the first angle adjusting mechanism 21 includes:
A first handle 211 and a first lever stop structure 212, wherein the first handle 211 is provided with a pusher dog mechanism 25, and the first lever stop structure 212 limits the maximum angle of outward swinging of the first handle 211 from the initial position to be a first rotation angle;
The second angle adjustment mechanism 22 includes:
A second handle 221 and a second lever stop structure 222, wherein the second handle 221 is provided with a pusher dog mechanism 25, and the second lever stop structure 222 limits the maximum angle of outward swinging of the second handle 221 from the initial position to be a second rotation angle;
the direction in which the first handle 211 swings outward from the initial position is opposite to the direction in which the second handle 221 swings outward from the initial position;
the finger mechanism 25 is rotatable on either the first handle 211 or the second handle 221 to turn the direction of the guide surface 251 and the clamping surface 252 of the finger mechanism 25.
Specifically, the respectively arranged pusher dog mechanism 25 comprises a lock rod 253, a return spring 254 and a limiting block 255, wherein the lock rod 253 penetrates through the first handle 211 and the second handle 221 respectively, one end of the lock rod 253 is provided with a lock tongue 2531 matched with the notch 2411, the lock tongue 2531 is provided with a guide surface 251 and a clamping surface 252, and the limiting block 255 is fixed at the other end of the lock rod 253;
Each handle is provided with a limit groove 29 matched with the limit block 255 of the lock rod 253 so that the orientation of the guide surface 251 of the respective lock tongue 2531 is kept parallel to the circumference of the notch 2411;
each handle has one end of a return spring 254 abutting against a lock lever 253, and the other end of the return spring 254 abutting against the corresponding handle.
Specifically, the guide surface 251 and the clamping surface 252 of the finger mechanism 25 are oriented in opposite directions, and the clamping surface 252 of the finger mechanism 25 located on the first handle 211 is oriented in the same direction as the clamping surface 252 of the finger mechanism 25 located on the second handle 221.
The working principle is that, as shown in the figure, the antenna 1 is in a normal state, and in the embodiment of the application, the right side facing the panel of the antenna 1 is provided with a first angle adjusting mechanism 21, and the left side facing the panel of the antenna 1 is provided with a second angle adjusting mechanism 22. In the following, the embodiment of the present application will be exemplified by a case of first pressing down the antenna 1 down-tilt angle and then lifting up the antenna 1 down-tilt angle.
The process of pressing down the antenna 1 down dip angle by the tower crane:
First, the turret adjusts the clamping face 252 of the finger mechanism 25 so that the orientation of the clamping face 252 of the finger mechanism 25 is the same as the direction of downtilt adjustment of the antenna 1. In the embodiment of the present application, the tower needs to rotate the downtilt angle of the antenna 1 downward. The orientation of the clamping surface 252 of the antenna 1 needs to be adjusted to be parallel to the tangent line of the circumference of the clamping groove matched with the finger mechanism 25 and to be downward. While the orientation of the guide face 251 is opposite to the orientation of the caliper face 252.
Referring to fig. 4, the turret swings upward from the initial position by pushing the first handle 211 of the first angle adjusting mechanism 21 until the first handle 211 is blocked by the first lever stopper 212, at which point it is determined that the first handle 211 has swung upward by the first rotation angle.
In this process, the locking tongue 2531 of the locking lever 253 mounted on the first handle 211 will rotate upward from one notch 2411 on the tray 24 to the other notch 2411 by a first rotation angle with respect to the tray 24 due to the guide surface 251.
Referring to fig. 5, the craftsman then pulls the first handle 211 to swing the first handle 211 back to the original position.
In this process, since the clamping surface 252 of the locking bolt 2531 of the locking rod 253 mounted on the first handle 211 is engaged with the clamping groove, the first handle 211 drives the dental tray 24 to move, so as to drive the antenna 1 fixed to the dental tray 24 to rotate downwards by a first rotation angle. Thereby realizing the adjustment of the downtilt angle of the antenna 1 with the first rotation angle as a step.
It should be noted that during the upward swing of the first handle 211 from the initial position. Even the orientation of the guide surface 251 of the locking bolt 2531 can cause the locking rod 253 to move outwardly to transfer the locking bolt 2531 from one notch 2411 to another notch 2411. However, in this process, the lock tongue 2531 still drives the tray 24 to rotate the tray 24 upward by a certain angle, so that the lock tongue 2531 cannot move relative to the tray 24 by the first rotation angle.
While the finger pulling mechanism 25 of the first handle 211 and the finger pulling mechanism 25 of the second handle 221 provided by the embodiment of the application form an interlocking structure. During the upward swinging of the first handle 211, the first handle 211 is prevented from driving the dental tray 24 to rotate upward due to the clamping surface 252 of the finger mechanism 25 of the second handle 221. In the process of swinging the first handle 211 downward, the direction of the guide surface 251 of the second handle 221 is opposite to the downward moving direction of the dental tray 24, so that the dental tray 24 can swing downward by the first rotation angle smoothly.
The process of lifting the antenna 1 downward inclination angle by a tower crane:
at this time, the direction of the clamping face 252 of the finger mechanism 25 is opposite to the direction of downward inclination adjustment of the antenna 1. The tower clamps the limiting block 255, pulls the locking rod 253 and the locking bolt 2531 outwards, and then rotates 180 degrees to adjust the orientation of the clamping surface 252, so that the orientation of the clamping surface 252 of the pusher dog mechanism 25 is the same as the downward inclination angle adjustment direction of the antenna 1.
Referring to fig. 6, after the orientations of the clamping faces 252 of the two-sided pawl mechanisms 25 are adjusted, the turret is swung downward from the initial position by pulling the second handle 221 of the second angle adjusting mechanism 22 until the second handle 221 is blocked by the second lever stopper structure 222, at which point it is determined that the second handle 221 has been swung downward by the second rotation angle.
In this process, the locking tongue 2531 of the locking lever 253 mounted on the second handle 221 is rotated downwardly from one notch 2411 of the tray 24 to the other notch 2411 by a second rotation angle with respect to the tray 24 due to the guide surface 251.
The turret then pushes the second handle 221, causing the second handle 221 to swing back to the original position.
In this process, since the clamping surface 252 of the locking bolt 2531 of the locking rod 253 mounted on the second handle 221 is engaged with the clamping groove, the second handle 221 drives the dental tray 24 to move, so as to drive the antenna 1 fixed to the dental tray 24 to rotate upwards by a second rotation angle. Thereby realizing the adjustment of the downtilt angle of the antenna 1 with the second rotation angle as a step.
Similarly, the finger mechanism 25 of the first handle 211 and the finger mechanism 25 of the second handle 221 form an interlocking structure during this process.
The same applies to the operation of deviating or approaching the downtilt angle of the antenna 1 to the downtilt angle of 0 ° when the antenna 1 is flipped.
The 5G antenna 1 provided by the embodiment of the application has the beneficial effects that the specific structure of the antenna downtilt angle adjusting mechanism 2 can enable a tower worker to respectively and accurately control the downtilt angle of the antenna 1 in different step sizes by only respectively pulling the first handle 211 and the second handle 221. The tower worker can adjust the downward inclination angle of the antenna 1 by hand feeling without loosening the screw 28, so that the operation is simpler and more convenient, the situation that the adjustment of the antenna 1 does not meet the design standard can be avoided, and the possibility of interfering with other antennas 1 is reduced.
Meanwhile, in the 5G antenna 1 provided in this embodiment, by arranging the relative relationship between the guide surfaces 251 and the clamping surfaces 252 of the finger mechanisms 25 in the first and second handles 211 and 221, respectively, the finger mechanisms 25 of the first and second handles 211 and 221 form an interlocking structure. The finger mechanism 25 of the second handle 221 is capable of locking the dental tray 24 when the first handle 211 is moved relative to its finger mechanism 25. The finger mechanism 25 of the first handle 211 is able to lock the dental tray 24 when the second handle 221 is moved relative to its finger mechanism 25. Thereby, the tooth disc 24 is prevented from moving when the guide surface 251 moves along the notch strip 241, and deviation in the process of adjusting the downward inclination angle of the antenna 1 is avoided, so that the adjustment precision of the downward inclination angle of the antenna 1 is higher.
Specifically, the first handle 211 and the second handle 221 are respectively provided with a safety mechanism for preventing the movement of the lock rod 253, the safety mechanism including a lock piece 26, and the lock piece 26 can move into a path along which the lock rod 253 moves in a direction away from the dental tray 24 to prevent the movement of the lock rod 253.
In the embodiment of the present application, the safety mechanism is a locking piece 26 fixed on the first handle 211, and the locking piece 26 can rotate to block a part of the locking piece 26 from blocking the outward moving path of the locking rod 253, so that the locking rod 253 cannot move outwards, and the locking tongue 2531 cannot be transferred from the original notch 2411 to the next notch 2411 because the locking rod 253 cannot move outwards.
The working principle of the antenna is that the self weight of the antenna 1 drives the tooth disc 24 to turn downwards, if a safety mechanism is not arranged, the self weight of the antenna 1 presses the guide surface 251 of the lock tongue 2531 through the pressure plate, so that the lock tongue 2531 moves outwards, the lock tongue 2531 is separated from the notch 2411, and the pawl mechanism 25 cannot lock the downward inclination angle of the antenna 1.
In an embodiment of the present application, the outward movement of the locking bolt 2531 is prevented by the safety mechanism, so that the tray 24 is locked against movement.
It should be noted that due to the existence of the safety mechanism, certain rules need to be followed when adjusting the downtilt of the antenna 1. The embodiment of the application will be exemplified by the downward inclination of the downward antenna 1.
When the antenna 1 is depressed at a downward inclination, the lock of the lock lever 253 by the lock piece 26 on the first handle 211 is released. Then, after first handle 211 is pushed to swing upward to the maximum angle, locking of lock lever 253 by lock piece 26 on first handle 211 is resumed. Then, the lock of the lock piece 26 on the second handle 221 to the lock rod 253 is released, and after the first handle 211 is pulled to return to the original position, the lock of the lock piece 26 on the second handle 221 to the lock rod 253 is restored.
Similarly, the principle of lifting the antenna 1 downward inclination is the same.
The safety structure provided by the embodiment of the application has the beneficial effects that the pusher dog mechanism 25 can be used as a mechanism for locking the downward inclination angle of the antenna 1 on one hand, and the downward inclination angle of the antenna 1 can be locked on the other hand, so that the chuck can be prevented from moving relative to the pusher dog mechanism 25 due to the dead weight of the antenna 1, and the downward inclination angle is prevented from being changed.
Specifically, the first lever stop structure 212 includes a clamp base 27 and a screw 28, the swing path of the first handle 211 is in the gap of the clamp base 27, and the screw 28 is screwed into the gap by a first distance to control the gap of the clamp base 27 so that the maximum angle of the first handle 211 swinging outwards from its initial position is the first rotation angle;
The second lever stopper 222 includes a clamp base 27 and a screw 28, the swing path of the second handle 221 is within a gap of the clamp base 27, and the screw 28 is screwed into the gap a second distance to control the gap of the clamp base 27 such that the maximum angle at which the second handle 221 swings outward from its initial position is a second rotation angle.
Specifically, the screws 28 of the first and second bar stop structures 212, 222 are capable of adjusting the distance of threading into the gap to control the maximum angle at which each handle can swing outwardly from its initial position.
The principle of the operation is that the maximum angle at which the first handle 211 or the second handle 221 can swing depends on how large a gap is formed in the clamp base 27, and thus the maximum angle at which the first handle 211 or the second handle 221 can swing can be adjusted by adjusting the distance by which the screw 28 is screwed into the gap.
Preferably, by configuring the screws 28 in different lengths in advance, the length of the screws 28 is such that the maximum angle at which the first handle 211 or the second handle 221 can swing corresponds to a certain preset value after the screws 28 are completely screwed in.
The rod stop structure has the advantages that the swing amplitude can be adjusted, after the first rotation angle or the second rotation angle is used as the step length for adjustment, the step length for adjusting the downward inclination angle can be changed by changing the screwing distance of the screw 28, so that a combined structure similar to a coarse focusing spiral and a fine focusing spiral is formed, and the accuracy for adjusting the downward inclination angle can be further improved.
It should be noted that in this document, relational terms such as "first" and "second" and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. In addition, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Moreover, in the description of the embodiments of the present application, unless otherwise indicated, "/" means or, for example, a/B may mean a or B; "and/or" herein is merely an association relationship describing an association object, and means that three relationships may exist, for example, a and/or B may mean: a exists alone, A and B exist together, and B exists alone. Also, in the description of the embodiments of the present application, "plurality" means two or more than two.
The foregoing is only a specific embodiment of the application to enable those skilled in the art to understand or practice the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown and described herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (7)
1.5G antenna, its characterized in that includes antenna and antenna downtilt adjustment mechanism, antenna downtilt adjustment mechanism includes:
A first angle adjustment mechanism for deviating the antenna from a 0 ° downtilt angle;
A second angle adjustment mechanism for bringing the antenna close to a 0 ° downtilt angle;
The first angle adjusting mechanism adjusts the antenna downward inclination angle by taking a first rotation angle as a step length, the second angle adjusting mechanism adjusts the antenna downward inclination angle by taking a second rotation angle as a step length, and the first rotation angle is larger than the second rotation angle;
A fixing unit fixed on an external pole, the antenna being rotatably connected to the fixing unit to rotate around the fixing unit to change a downtilt angle of the antenna;
The tooth disc is fixed with the antenna, the tooth disc is provided with notch strips, the notch strips take the connection point of the antenna and the fixed unit as the center of a circle, and each notch of the notch strips is uniformly distributed on the common circumference according to a third rotation angle;
The third rotation angle is a common factor of the first rotation angle and the second rotation angle;
The tail end of the pusher dog mechanism matched with the notch is provided with guide surfaces and clamping surfaces with different orientations, so that the pusher dog mechanism can only move relative to the dental tray along the direction of the guide surfaces on the notch strip, and the dental tray is driven to move together when the pusher dog mechanism moves along the direction of the clamping surfaces;
the first angle adjustment mechanism includes:
The first handle is provided with a pusher dog mechanism, and the first lever stop structure limits the maximum angle of outward swing of the first handle from the initial position to be a first rotation angle;
the second angle adjustment mechanism includes:
The second handle is provided with a pusher dog mechanism, and the maximum angle of the second handle which swings outwards from the initial position of the second handle is limited to be a second rotation angle by the second lever stop structure;
The direction of outward swinging of the first handle from the initial position is opposite to the direction of outward swinging of the second handle from the initial position;
the finger mechanism is rotatable on either the first handle or the second handle to turn the direction of the finger mechanism guide surface and the caliper surface.
2. The 5G antenna of claim 1, wherein the guide surface and the gripping surface of the finger mechanism are oppositely oriented, and the gripping surface of the finger mechanism on the first handle is oriented in the same direction as the gripping surface of the finger mechanism on the second handle.
3. The 5G antenna according to claim 1, wherein the respectively arranged pusher dog mechanism comprises a lock rod, a return spring and a limiting block, the first handle and the second handle are respectively penetrated by the lock rod, one end of the lock rod is provided with a lock tongue matched with the notch, the lock tongue is provided with a guide surface and a clamping surface, and the other end of the lock rod is fixed with the limiting block;
each handle is provided with a limiting groove matched with the limiting block of the lock rod, so that the orientation of the guide surface of each lock tongue is kept parallel to the circumference of the notch distribution;
one end of each handle is respectively provided with a return spring which is abutted to the lock rod, and the other end of each return spring is abutted to the corresponding handle.
4. A 5G antenna according to claim 3, wherein the first and second handles are each provided with a safety mechanism to prevent movement of the locking bar, the safety mechanism comprising a locking tab moveable into a path in which the locking bar moves in a direction away from the tray to prevent movement of the locking bar.
5. The 5G antenna of claim 1, wherein the first lever stop structure comprises a clamp base and a screw, the swing path of the first handle being within the gap of the clamp base, the screw being threaded into the gap a first distance to control the gap of the clamp base such that the maximum angle at which the first handle swings outwardly from its initial position is a first angle of rotation;
The second lever stop structure comprises a clamp base and a screw, wherein the swing path of the second handle is arranged in a gap of the clamp base, and the screw is screwed into the gap by a second distance to control the gap of the clamp base so that the maximum angle of the second handle swinging outwards from the initial position is a second rotation angle.
6. The 5G antenna of claim 5, wherein the screws of the first and second rod stop structures are capable of adjusting the distance of threading into the gap to control the maximum angle at which each handle can swing outward from its initial position.
7. The 5G antenna of claim 1, wherein the first angle of rotation is 3 ° and the second angle of rotation is 2 °.
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| CN202311583543.6A CN117335150B (en) | 2023-11-24 | 2023-11-24 | 5G antenna |
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