Downtilt angle display device and antenna

Abstract

The present invention discloses a downtilt angle display device and an antenna, the downtilt angle display device comprises a dial, a screw, a nut and an indicator, the dial is fixedly arranged; the screw can move with the extension and contraction of the dielectric plate of the phase shifter; the nut is threadedly connected with the screw, and can drive the nut to rotate when the screw moves and contracts; the indicator is in driving cooperation with the nut, and the indicator is provided with an indicating part, and can drive the indicating part to rotate when the nut rotates, so that the indicating part indicates on the dial; the antenna comprises the above-mentioned downtilt angle display device. When the electric adjustment is downtilted, the dielectric plate moves and drives the screw to move, and because the screw and the nut are threadedly connected, the nut is driven to rotate by the extension and contraction of the screw, and the nut is driven to rotate when the nut rotates, and the indicating part of the indicating part can indicate the scale on the dial, so as to realize the display of the adjustment amplitude of the electric adjustment downtilt, so that the staff can intuitively feel the adjustment amplitude, and the structure is simple and the cost is low.

Description

Technical Field

[0001] This invention relates to the field of communication equipment technology, and in particular to a downtilt display device and antenna. Background Art

[0002] In base station antennas, downtilt angle adjustment mainly involves two methods: mechanical downtilt and electrical downtilt. Electrical downtilt works by changing the phase of the phase shifter, which alters the phase of the collinear array antenna elements, changing the amplitudes of the vertical and horizontal components, and ultimately altering the field strength of the composite component, thus tilting the antenna's vertical directivity downwards. Electrical downtilt is extremely complex to operate; therefore, mechanical adjustment of the antenna downtilt angle is usually discontinued after antenna installation.

[0003] However, although the adjustment method of the ESC tilt is very simple to operate, the adjustment range cannot be directly felt or observed by the staff. Summary of the Invention

[0004] Therefore, it is necessary to provide a downtilt angle display device and an antenna; the downtilt angle display device has a simple structure and can display the adjustment range of the electrically adjustable downtilt so that the staff can intuitively feel it; the antenna includes the aforementioned downtilt angle display device, which enables the staff to intuitively feel the adjustment range of the downtilt angle.

[0005] The technical solution is as follows:

[0006] One embodiment provides a tilt angle display device, comprising:

[0007] A dial, which is fixedly installed;

[0008] The screw is capable of extending and retracting with the dielectric plate of the phase shifter;

[0009] A nut, which is screwed into the screw rod, and the screw rod can drive the nut to rotate when it extends or retracts;

[0010] An indicator is provided, which is in a transmission engagement with the nut. The indicator has an indicating part, and when the nut rotates, it can drive the indicator to rotate so that the indicating part can indicate on the dial.

[0011] The aforementioned tilt angle display device, when the electric tilt is tilted down, moves the medium plate and drives the screw to move. Since the screw and nut are screwed together, the extension and retraction of the screw drives the nut to rotate. When the nut rotates, it drives the indicator to rotate. The indicator part of the indicator can indicate the scale on the dial, thereby displaying the adjustment range of the electric tilt, so that the staff can intuitively feel the adjustment range. Moreover, the structure is simple and the cost is low.

[0012] The technical solution will be further explained below:

[0013] In one embodiment, the tilt angle display device further includes an adapter connected to the nut and capable of rotating with the nut. The adapter is in a transmission engagement with the indicator so that the adapter drives the indicator to rotate.

[0014] In one embodiment, the adapter has an adapter tooth portion, and the indicator has a mating tooth portion, the mating tooth portion engaging with the adapter tooth portion.

[0015] In one embodiment, the total stroke of the screw is L, the lead of the nut is a, L = a * N, and the reduction ratio between the indicator and the adapter is N, so that the starting position of the screw corresponds to the starting mark indicated by the indicator on the dial, and the ending position of the screw corresponds to the ending mark indicated by the indicator on the dial; wherein, N is an integer equal to or greater than 1.

[0016] In one embodiment, the screw has a connecting portion and a driving portion, the connecting portion and the driving portion being located at opposite ends of the screw, the connecting portion being used to connect with the medium plate or the connecting portion being used to connect with an intermediate component that drives the medium plate to move, and the driving portion being used to screw onto the nut to drive the nut to rotate;

[0017] The drive unit has a drive surface, the nut has a threaded groove corresponding to the drive surface, and the screw extends and retracts, causing the drive surface to move along the drive groove, so that the screw drives the nut to rotate.

[0018] In one embodiment, the tilt angle display device further includes a first mounting base and a second mounting base, the first mounting base and the second mounting base being spaced apart;

[0019] The dial is fixedly mounted on the first mounting base, the indicator is rotatably mounted on the first mounting base, and the indicator part is located at the end of the indicator that is away from the nut;

[0020] The two ends of the nut are respectively limited to the first mounting base and the second mounting base, so that the nut can rotate relative to the first mounting base and the second mounting base when the screw moves telescopically.

[0021] In one embodiment, the dial has a dial body and a mounting post, the mounting post is fixed to the first mounting base, the mounting post is provided with a first mounting through hole, the first mounting through hole is provided through the first mounting base and the dial body, the indicator is rotatably engaged with the dial through the first mounting through hole; the indicator part is a needle-shaped flange provided on the end face of the indicator away from the nut.

[0022] In one embodiment, the tilt angle display device further includes a limiting bearing, which is disposed on the first mounting base, and the adapter is rotatably engaged with the limiting bearing;

[0023] The inner wall of the nut is provided with a mounting groove, which is arranged along the length of the nut. The adapter is provided with a transmission part, which is matched with the nut through the mounting groove so that the adapter rotates when the nut rotates.

[0024] In one embodiment, the transmission part and the adapter tooth are located at opposite ends of the adapter, and the limiting bearing or the first mounting seat is provided with a receiving groove for accommodating at least a portion of the adapter tooth and engaging the adapter tooth with the mating tooth.

[0025] In one embodiment, the second mounting base is provided with a second mounting through hole, and the wall of the second mounting through hole is provided with a first limiting step, which is arranged along the circumference of the second mounting through hole; the nut is provided with a second limiting step, which is arranged around the outer circumference of the nut, and the second limiting step is engaged with the first limiting step for limiting.

[0026] The second mounting base is provided with a locking part, and the nut is provided with a third limiting step. The third limiting step is arranged around the outer periphery of the nut. The third limiting step and the second limiting step are spaced apart so that a locking groove is formed between the third limiting step and the second limiting step. The locking groove is arranged along the outer periphery of the nut, and the locking part is located in the locking groove and engages with the nut for limiting.

[0027] Another embodiment provides an antenna including a downtilt display device as described in any of the above technical solutions.

[0028] The antenna described above uses the aforementioned downtilt angle display device. When the electronically regulated antenna is tilted down, the dielectric plate of the phase shifter moves and drives the screw to move. Since the screw and nut are screwed together, the extension and retraction of the screw drives the nut to rotate. When the nut rotates, it drives the indicator to rotate. The indicator part of the indicator can indicate the scale on the dial, thereby realizing the display of the adjustment range of the electronically regulated antenna downtilt. This allows the staff to intuitively feel the adjustment range. Moreover, the structure is simple and the cost is low.

[0029] The technical solution will be further explained below:

[0030] In one embodiment, at least two media plates are provided, and at least two of each of the dial, the indicator, the screw, and the nut are provided, each corresponding to one of the media plates. Attached Figure Description

[0031] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0033] Furthermore, the accompanying drawings are not drawn to a 1:1 scale, and the relative dimensions of the various components are shown in the drawings only as examples and not necessarily to actual scale.

[0034] Figure 1 This is a schematic diagram of the overall structure of the tilt angle display device in an embodiment of the present invention;

[0035] Figure 2 for Figure 1 Cross-sectional view of the overall structure of the tilt angle display device in the embodiment;

[0036] Figure 3 for Figure 1 Assembly diagram of the first mounting base, dial, indicator and nut in the embodiment;

[0037] Figure 4 for Figure 2 Assembly diagram of the first mounting base, dial, indicator, nut, adapter and limit bearing in the embodiment;

[0038] Figure 5 for Figure 1 A schematic diagram of the overall structure of the screw in the embodiment;

[0039] Figure 6 for Figure 1 Cross-sectional view of the overall structure of the nut in the embodiment;

[0040] Figure 7 for Figure 1 A first-view view of the nut in the embodiment;

[0041] Figure 8 for Figure 1 A second-view view of the nut in the embodiment;

[0042] Figure 9 for Figure 1 A schematic diagram of the structure of the second mounting base in the embodiment;

[0043] Figure 10 for Figure 1 A schematic diagram of the overall structure of the indicator in the embodiment;

[0044] Figure 11 for Figure 1 A schematic diagram showing the screw reaching the innermost side of the nut in the embodiment;

[0045] Figure 12 for Figure 1 A schematic diagram showing the screw reaching the outermost part of the nut in the embodiment.

[0046] Attached image annotations:

[0047] 110. Dial; 111. Dial body; 112. Mounting post; 120. Screw; 121. Connecting part; 122. Driving part; 1221. Driving surface; 130. Nut; 131. Threaded groove; 132. Mounting groove; 133. Second limiting step; 134. Third limiting step; 135. Locking groove; 140. Indicator; 141. Indicator part; 142. Connecting teeth; 143. Adjustment groove; 150. Adapter; 151. Adapter teeth; 152. Transmission part; 160. First mounting base; 170. Second mounting base; 171. Second mounting through hole; 172. First limiting step; 173. Locking part; 174. Extension part; 175. Positioning groove; 180. Limit bearing; 181. Receiving groove; 190. Pointer cover; 200. Medium plate; 300. Driving rack. Detailed Implementation

[0048] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings:

[0049] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0050] Please refer to Figures 1 to 4 as well as Figure 10 One embodiment provides a tilt-down display device, comprising:

[0051] Dial 110, dial 110 is fixed;

[0052] Screw 120, screw 120 is capable of telescopic movement with the dielectric plate 200 of the phase shifter;

[0053] Nut 130 is screwed into screw rod 120. When screw rod 120 moves telescopically, it can drive nut 130 to rotate.

[0054] Indicator 140, such as Figure 10 As shown, the indicator 140 is driven to cooperate with the nut 130. The indicator 140 is provided with an indicator part 141. When the nut 130 rotates, it can drive the indicator 140 to rotate so that the indicator part 141 can indicate on the dial 110.

[0055] When the electric tilt is tilted down, the medium plate 200 moves and drives the screw 120 to move. Since the screw 120 is screwed into the nut 130, the extension and retraction of the screw 120 drives the nut 130 to rotate. When the nut 130 rotates, it drives the indicator 140 to rotate. The indicator part 141 of the indicator 140 can indicate the scale on the dial 110, thereby realizing the display of the adjustment range of the electric tilt, so that the staff can intuitively feel the adjustment range. Moreover, the structure is simple and the cost is low.

[0056] When adjusting the downtilt angle, the dielectric plate 200 of the phase shifter extends and retracts. This extension and retraction of the dielectric plate 200 drives the screw 120 to extend and retract as well. Since the screw 120 is screwed into the nut 130, the extension and retraction of the screw 120 converts the movement into the rotation of the nut 130. The rotation amplitude of the nut 130 reflects the extension and retraction amplitude of the screw 120, which in turn reflects the extension and retraction amplitude of the dielectric plate 200, thus reflecting the adjustment amplitude of the downtilt angle. Therefore, the adjustment amplitude of the downtilt angle (direction and position information, etc.) can be reflected by the rotation amplitude of the nut 130. The nut 130 then drives the indicator 140 to rotate, causing the indicator 140 to reflect the rotation amplitude in the movement amplitude of the indicator 141. The scale on the dial 110 corresponds to the adjustment amplitude of the downtilt angle, thus the indicator 141 indicates the corresponding adjustment amplitude on the dial 110, realizing the display of the phase adjustment amplitude of the phase shifter under the electrically adjustable antenna. Meanwhile, the nut 130 cooperates with the screw 120, and the nut 130 only rotates, which can occupy less space and improve the overall space utilization of the antenna.

[0057] It is understandable that:

[0058] The screw 120 is screwed to the nut 130. The extension and retraction of the screw 120 drives the nut 130 to rotate. It is necessary to make the nut 130 rotate without being able to extend or retract. This can be achieved in various ways to convert the linear motion of the screw 120 into the rotational motion of the nut 130. These methods will not be elaborated here.

[0059] In one embodiment, please refer to Figure 2 and Figure 4 The tilt angle display device also includes an adapter 150, which is connected to the nut 130 and can rotate with the nut 130. The adapter 150 is in a transmission engagement with the indicator 140 so that the adapter 150 drives the indicator 140 to rotate.

[0060] When the nut 130 rotates, it can drive the adapter 150 to rotate synchronously and with the same amplitude, so as to transmit the rotation of the nut 130 to the adapter 150, and the adapter 150 then transmits the rotation to the indicator 140.

[0061] Optionally, the adapter 150 is fixedly engaged with the nut 130; or the adapter 150 is driven by the nut 130.

[0062] In one embodiment, please refer to Figure 4 and Figure 10 The adapter 150 has an adapter tooth 151, and the indicator 140 has a mating tooth 142, which meshes with the adapter tooth 151.

[0063] The adapter 150 and the indicator 140 are driven by gear meshing. Figure 4 From the view shown, the left end of the adapter 150 is provided with an adapter tooth 151, as shown. Figure 10 As shown, the right end of the indicator 140 is provided with a mating tooth 142. (As indicated...) Figure 4 As shown, the adapter tooth 151 meshes with the mating tooth 142 to achieve the transmission engagement between the adapter 150 and the indicator 140.

[0064] In one embodiment, please refer to Figure 11 and Figure 12 The total stroke of the screw 120 is L, the lead of the nut 130 is a, L = a * N, and the reduction ratio between the indicator 140 and the adapter 150 is N, so that the starting position of the screw 120 corresponds to the starting mark indicated by the indicator 141 on the dial 110, and the ending position of the screw 120 corresponds to the ending mark indicated by the indicator 141 on the dial 110; where N is an integer equal to or greater than 1.

[0065] like Figure 11 From the perspective shown, screw 120 reaches the leftmost position, as... Figure 12 From the perspective shown, screw 120 is at its rightmost position. (Combined with...) Figure 11 and Figure 12 The maximum range of movement of screw 120 is given, which is also the total stroke of screw 120. This total stroke corresponds to the entire scale range on dial 110, which refers to the range of tilt angle adjustment.

[0066] If the lead of nut 130 is a, then the total stroke L of screw 120 is set to be N (N≥1) times the lead a of nut 130, and the reduction ratio between indicator 140 and adapter 150 is N. With this setting, once set at the beginning of installation, during subsequent use, if screw 120 is in the starting position, the indicator 141 on the dial 110 will be the set starting scale value. When screw 120 reaches the end position (i.e., the maximum movable position), the indicator 141 on the dial 110 will be the set end scale value. This ensures that screw 120 can always automatically return to zero when it extends or retracts to the set limit position without manual readjustment. This makes assembly reliable, convenient, and quick, and has better economic benefits.

[0067] In one embodiment, please refer to Figure 5 The screw 120 has a connecting part 121 and a driving part 122. The connecting part 121 and the driving part 122 are located at opposite ends of the screw 120. The connecting part 121 is used to connect with the medium plate 200 or to connect with an intermediate component that drives the medium plate 200 to move. The driving part 122 is used to screw onto the nut 130 to drive the nut 130 to rotate.

[0068] like Figure 5 From the perspective shown, the drive unit 122 is located at the left end of the screw 120, and the connecting part 121 is located at the right end of the screw 120. The connecting part 121 is used to establish a connection with the medium plate 200 so that the screw 120 can be driven to extend and retract when the medium plate 200 extends and retracts.

[0069] The screw 120 and the medium plate 200 can be directly connected or indirectly connected.

[0070] For example, the right end of the screw 120 can be directly connected to the screw 120 via the connecting part 121.

[0071] For example, Figure 1 In the embodiment shown, the dielectric plate 200 is driven to extend and retract by the intermediate component, and the screw 120 is connected to the intermediate component through the connecting part 121. When the intermediate component moves, it drives the dielectric plate 200 and the screw 120 to extend and retract synchronously with the same amplitude.

[0072] Optionally, the intermediate component is a drive rack 300, which drives the medium plate 200 and the screw 120 to move synchronously and with the same amplitude when it extends and retracts.

[0073] In one embodiment, please refer to Figure 5 and Figure 6 The drive unit 122 has a drive surface 1221, and the nut 130 has a threaded groove 131 corresponding to the drive surface 1221. The screw 120 moves telescopically and causes the drive surface 1221 to move along the drive groove, so that the screw 120 drives the nut 130 to rotate.

[0074] like Figure 5 As shown, the drive unit 122 is a short threaded section provided at one end of the screw 120. When the screw 120 moves in extension and retraction, the drive unit 122 moves along the threaded groove 131 to drive the nut 130 to rotate.

[0075] The drive unit 122 is arranged in a spiral structure with a large width, so that the surface of the drive unit 122 forms a drive surface 1221. The drive surface 1221 and the groove surface of the threaded groove 131 make surface contact to solve the display error problem caused by transmission gap, improve display accuracy, and better transmit torque.

[0076] In one embodiment, please refer to Figure 1 and Figure 2 The tilt angle display device also includes a first mounting base 160 and a second mounting base 170, which are spaced apart.

[0077] The first mounting base 160 and the second mounting base 170 can be fixed to the antenna's plate structure or frame structure.

[0078] In one embodiment, please refer to Figure 3 and Figure 4 The dial 110 is fixedly mounted on the first mounting base 160, the indicator 140 is rotatably mounted on the first mounting base 160, and the indicator part 141 is located at the end of the indicator 140 away from the nut 130.

[0079] In one embodiment, please refer to Figure 1 and Figure 2 The two ends of the nut 130 are respectively limited to the first mounting base 160 and the second mounting base 170, so that the nut 130 can rotate relative to the first mounting base 160 and the second mounting base 170 when the screw 120 moves telescopically.

[0080] like Figure 2 As shown, the first mounting base 160 and the second mounting base 170 are respectively used to support the two ends of the nut 130 so that the two ends of the nut 130 cannot move left or right, so that the nut 130 can rotate relative to the screw 120 when the screw 120 is extended or retracted.

[0081] In one embodiment, the first mounting base 160 is further provided with a pointer cover 190 to protect the indicator 140 and the dial 110.

[0082] In one embodiment, please refer to Figure 9 The bottom of the second mounting base 170 may be provided with a positioning groove 175 for positioning during installation.

[0083] For example, Figure 9 The positioning groove 175 is roughly rectangular to achieve positioning and mating in the XY direction, which will not be elaborated further.

[0084] In one embodiment, please refer to Figure 3 and Figure 4 The dial 110 has a dial body 111 and a mounting post 112. The mounting post 112 is fixed to the first mounting base 160. The mounting post 112 is provided with a first mounting through hole, which passes through the first mounting base 160 and the dial body 111. The indicator 140 rotates with the dial 110 through the first mounting through hole.

[0085] It is understandable that:

[0086] The indicator 140 is generally cylindrical in shape. The indicator 140 rotates under the drive of the nut 130 (and the adapter 150) to change the position of the indicator part 141 on it, thereby indicating different scales on the dial 110. The first mounting through hole is used to allow the indicator 140 to rotate relative to the dial 110 and to position the indicator part 141 in the middle of the dial 110.

[0087] Of course, in another embodiment, the indicator portion 141 of the indicator 140 can be located on the outer ring of the dial 110. When the indicator 140 rotates, the indicator portion 141 rotates on the outer ring of the dial 110 and indicates different scales on the dial 110. In this case, there is no need to provide a first mounting through hole on the dial 110, which will not be described further.

[0088] In one embodiment, please refer to Figure 10 The indicator part 141 is a needle-shaped flange provided on the end face of the indicator 140 away from the nut 130.

[0089] In one embodiment, please refer to Figure 10 The indicator 140 is also provided with an adjustment slot 143, which is used to facilitate installation and adjustment by workers during installation.

[0090] In one embodiment, please refer to Figure 3 and Figure 4 The tilt angle display device also includes a limit bearing 180, which is mounted on the first mounting base 160, and the adapter 150 is rotatably engaged with the limit bearing 180.

[0091] Optionally, such as Figure 4 As shown, the limiting bearing 180 is a sliding bearing fixed on the first mounting base 160. The adapter 150 is rotatably connected to the first mounting base 160 through the sliding bearing, and the adapter 150 is also connected to the nut 130 through transmission. The left and right movement of the adapter 150 is limited to restrict the left and right movement of the nut 130, so that the nut 130 cannot move left and right.

[0092] In one embodiment, please refer to Figure 4 , Figure 6 and Figure 8 The inner wall of the nut 130 is provided with a mounting groove 132, which is arranged along the length of the nut 130. The adapter 150 is provided with a transmission part 152, which is matched with the nut 130 through the mounting groove 132 so that the adapter 150 can rotate when the nut 130 rotates.

[0093] like Figure 6 and Figure 8 As shown, the inner wall of the left end of the nut 130 is provided with a mounting groove 132. The mounting groove 132 extends along the length of the nut 130 and extends a certain length. The transmission part 152 of the adapter 150 matches the mounting groove 132 so that the nut 130 can drive the adapter 150 to rotate when it rotates, thereby realizing the transmission engagement.

[0094] At the same time, if Figure 6As shown, since the mounting groove 132 is not infinitely long, the transmission part 152 of the adapter 150 and the groove end of the mounting groove 132 abut against each other, so that the nut 130 cannot move left or right.

[0095] In one embodiment, please refer to Figure 4 The transmission part 152 and the adapter tooth part 151 are located at opposite ends of the adapter 150. The limit bearing 180 or the first mounting seat 160 is provided with a receiving groove 181, which is used to receive at least a part of the adapter tooth part 151 and make the adapter tooth part 151 mesh with the mating tooth part 142.

[0096] In one embodiment, please refer to Figures 6 to 9 The second mounting base 170 is provided with a second mounting through hole 171, and the hole wall of the second mounting through hole 171 is provided with a first limiting step 172, which is arranged along the circumference of the second mounting through hole 171; the nut 130 is provided with a second limiting step 133, which is arranged around the outer circumference of the nut 130, and the second limiting step 133 and the first limiting step 172 are matched for limiting.

[0097] like Figure 9 As shown, a second mounting through hole 171 is formed on the second mounting base 170, and a first limiting step 172 is located on the hole wall of the first mounting through hole and is used to limit the end of the nut 130; as Figure 8 As shown, the nut 130 is provided with a second limiting step 133. The diameter of the second limiting step 133 is larger than the radius of the nut 130 itself. The end of the second limiting step 133 abuts against the first limiting step 172 to perform limiting engagement.

[0098] In one embodiment, please refer to Figures 6 to 9 The second mounting base 170 is provided with a locking part 173, and the nut 130 is provided with a third limiting step 134. The third limiting step 134 is arranged around the outer periphery of the nut 130. The third limiting step 134 and the second limiting step 133 are spaced apart so that a locking groove 135 is formed between the third limiting step 134 and the second limiting step 133. The locking groove 135 is arranged along the outer periphery of the nut 130, and the locking part 173 is located in the locking groove 135 and is limited and engaged with the nut 130.

[0099] like Figure 9 As shown, the second mounting base 170 is provided with a locking part 173 for locking the nut 130, to further ensure that the nut 130 does not move left or right; as Figure 7 and Figure 8 As shown, the second limiting step 133 and the third limiting adjustment interval on the nut 130 form a locking groove 135, and the locking part 173 is locked into the locking groove 135, thereby achieving the effect of preventing the nut 130 from moving left and right.

[0100] In one embodiment, please refer to Figure 9 The second mounting base 170 is also provided with an extension 174, which extends toward the nut 130. The locking part 173 is provided at the end of the extension 174 facing the nut 130 and extends into the hole of the second mounting through hole 171.

[0101] In one embodiment, please refer to Figure 9 The locking part 173 is provided in at least two, and the locking parts 173 are arranged at intervals around the outer periphery of the nut 130.

[0102] Another embodiment provides an antenna that includes a downtilt display device as described in any of the above embodiments.

[0103] The antenna can be an electrically adjustable antenna, employing the aforementioned downtilt angle display device. When the antenna is electrically tilted down, the dielectric plate 200 of the phase shifter moves and drives the screw 120 to move. Since the screw 120 is screwed into the nut 130, the extension and retraction of the screw 120 drives the nut 130 to rotate. When the nut 130 rotates, it drives the indicator 140 to rotate. The indicator part 141 of the indicator 140 can indicate the scale on the dial 110, thereby displaying the adjustment range of the electrically adjustable downtilt. This allows the staff to intuitively feel the adjustment range, and the structure is simple and the cost is low.

[0104] In one embodiment, please refer to Figures 1 to 4 The medium plate 200 is provided with at least two, and the dial 110, indicator 140, screw 120 and nut 130 are each provided with at least two and correspond one-to-one with the medium plate 200.

[0105] like Figures 1 to 4 As shown, there are six dielectric plates 200, and six scales 110, indicators 140, screws 120 and nuts 130 are also provided to display the tilt angle adjustment of the phase shifter corresponding to different dielectric plates 200.

[0106] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0107] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0108] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0109] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0110] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0111] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0112] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A downward tilt angle display device, characterized in that: include: A dial, wherein the dial is fixedly arranged; A screw rod, wherein the screw rod can move with the dielectric plate of the phase shifter; A nut, wherein the nut is threadedly engaged with the screw rod, and the screw rod can drive the nut to rotate when it is telescopically moved; An indicator member, the indicator member is in driving cooperation with the nut, the indicator member is provided with an indicating portion, and when the nut rotates, the indicator member can be driven to rotate so that the indicating portion indicates on the dial.

2. The downward tilt display device according to claim 1, characterized in that: The downward inclination angle display device also includes a conversion piece, which is connected to the nut and can rotate with the nut, and the conversion piece is in transmission cooperation with the indicator so that the conversion piece drives the indicator to rotate.

3. The downward tilt display device according to claim 2, characterized in that: The adapter has an adapter tooth portion, and the indicator has a docking tooth portion, and the docking tooth portion is meshed with the adapter tooth portion.

4. The downward tilt display device according to claim 3, characterized in that: The total stroke of the screw is L, the lead of the nut is a, L=a*N, and the reduction ratio of the indicator and the adapter is N, so that the starting position of the screw corresponds to the starting scale indicated by the indicator on the dial, and the ending position of the screw corresponds to the ending scale indicated by the indicator on the dial; wherein N is an integer equal to or greater than 1.

5. The downward tilt display device according to claim 2, characterized in that: The screw has a connecting portion and a driving portion, the connecting portion and the driving portion are respectively located at opposite ends of the screw, the connecting portion is used to connect with the medium plate or the connecting portion is used to connect with the intermediate member that drives the medium plate to move, and the driving portion is used to be threadedly connected with the nut to drive the nut to rotate; The driving portion has a driving surface, and the nut has a thread groove corresponding to the driving surface. The screw rod moves telescopically and causes the driving surface to move along the thread groove, so that the screw rod drives the nut to rotate.

6. The downward tilt display device according to claim 3, characterized in that: The downward tilt angle display device further comprises a first mounting seat and a second mounting seat, wherein the first mounting seat and the second mounting seat are arranged at an interval; The scale plate is fixedly mounted on the first mounting seat, the indicator is rotatably mounted on the first mounting seat, and the indicator portion is located at an end of the indicator away from the nut; The opposite ends of the nut are respectively limitedly matched with the first mounting seat and the second mounting seat, so that the nut can rotate relative to the first mounting seat and the second mounting seat when the screw rod moves telescopically.

7. The downward tilt display device according to claim 6, characterized in that: The dial has a dial body and a mounting column, the mounting column is fixed to the first mounting seat, the mounting column is provided with a first mounting through hole, the first mounting through hole passes through the first mounting seat and the dial body, the indicator is rotatably engaged with the dial through the first mounting through hole; the indicating part is a needle-shaped flange provided on the end face of the indicator away from the nut.

8. The downward tilt display device according to claim 6, characterized in that: The downward inclination angle display device further comprises a limit bearing, the limit bearing is arranged on the first mounting seat, and the adapter is rotatably matched with the limit bearing; The inner wall of the nut is provided with a mounting groove, and the mounting groove is arranged along the length direction of the nut. The adapter is provided with a transmission part, and the transmission part is limitedly matched with the nut through the mounting groove, so that the adapter is driven to rotate when the nut rotates.

9. The downward tilt display device according to claim 8, characterized in that: The transmission part and the transfer tooth part are respectively located at opposite ends of the transfer member, and the limit bearing or the first mounting seat is provided with a receiving groove, which is used to receive at least a part of the transfer tooth part and enable the transfer tooth part to mesh with the docking tooth part.

10. The downward tilt display device according to claim 6, characterized in that: The second mounting seat is provided with a second mounting through hole, the hole wall of the second mounting through hole is provided with a first limiting step, and the first limiting step is arranged along the circumference of the second mounting through hole; the nut is provided with a second limiting step, and the second limiting step is arranged around the outer circumference of the nut, and the second limiting step is limitedly matched with the first limiting step; The second mounting seat is provided with a locking portion, and the nut is provided with a third limiting step, the third limiting step is arranged around the outer circumference of the nut, and the third limiting step and the second limiting step are arranged at an interval so that a locking groove is formed between the third limiting step and the second limiting step, and the locking groove is arranged along the outer circumference of the nut, and the locking portion is located in the locking groove and cooperates with the nut for limiting.

11. An antenna, characterized in that: It comprises the downward tilt angle display device as described in any one of claims 1-10.

12. The antenna according to claim 11, characterized in that There are at least two dielectric plates, and there are at least two dial plates, indicator members, screw rods, and nuts, which correspond to the dielectric plates one by one.

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