Electric tilt antenna downtilt angle reading scale
Through the embedded snap-on installation method and elastic press-resistance structure, the accuracy and durability of the existing electric-control antenna down-tilt reading scale in assembly and use is solved, real-time and accurate reading reflection and high-precision maintenance over a long period of time are achieved.
Patent Information
- Application Number
- CN202422089715.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-28
- Publication Date
- 2025-06-03
- Estimated Expiration
- 2034-08-28
AI Technical Summary
The existing down-tilt reading scale of the electric-control antenna is inconvenient to operate during assembly, has low assembly accuracy, and is easily damaged by external forces, making it difficult to achieve the design purpose of instantly and accurately reflecting the down-tilt angle change of the electric-control antenna.
The embedded snap-in installation method is used to combine the ruler and the tie rod. Through the synergy between the front and rear elastic pressing wings and limit protrusions, the tie rod can be self-corrected and precisely assembled, reducing reciprocating vibration force and extending service life.
It realizes the convenience and speed of the assembly process, improves the assembly accuracy, ensures that the reading scale maintains excellent assembly accuracy for a long time, and can instantly and accurately reflect the downward angle change of the electric-controlled antenna.
Smart Images
Figure CN222938502U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of manufacturing electric tilt angle adjusting devices for antennas, in particular to a reading scale for the electric tilt angle of an antenna. Background Art
[0002] The so-called electric tilt antenna refers to a mobile antenna that uses electronic means to adjust the tilt angle. With the rapid development of modern communication technology, electric tilt antennas are becoming more and more popular in mobile communication. The principle of electronic tilt is to change the phase of the collinear array antenna elements, change the amplitude of the vertical and horizontal components, so as to change the intensity of the combined component field strength, and thus the electric tilt angle of the antenna can be adjusted. In terms of the current technical status, usually a mechanical adjustment device is used to realize the adjustment of the electric tilt angle of the antenna. The mechanical adjustment device mainly consists of a screw-driven linear module and a reading scale. Among them, the number of screw-driven linear modules is set to be multiple, and they cooperate with each other. The phase of the collinear array antenna elements changes due to external forces. During this period, the reading scale undergoes a follow-up displacement movement under the direct dragging force from the screw-driven linear module, so as to indirectly reflect the change amount of the electric tilt angle of the antenna.
[0003] In the prior art, the reading scale is composed of a scale body and a pull rod, and the two are fixed together by rivets or screws. However, it is found that the reading scale in this design form has the following problems in actual application: 1) During the assembly process, it is necessary to always pay attention to the alignment accuracy of the scale body and the pull rod, and it is necessary to ensure the precise tightening of the subsequent rivets and screws. The whole process is extremely inconvenient and time-consuming and laborious; 2) After assembly, the assembly accuracy of the scale body and the pull rod is relatively low, and the assembly accuracy between the two will inevitably deteriorate further due to external forces, making it difficult to achieve the design purpose of immediately and accurately reflecting the change amount of the electric tilt angle of the antenna; 3) During the assembly process, the scale body or / and the pull rod will inevitably be damaged due to the penetration of the rivets or the rigid contact of the screws, and it is difficult to be reused multiple times. The riveting area and the screw pressing area on the scale body and the pull rod are worn due to the action of reciprocating vibration force, and with the increase of time, the wear speed will increase sharply, which will inevitably affect the assembly accuracy between the scale body and the pull rod, and then cause the reading scale to be difficult to accurately reflect the change amount of the electric tilt angle of the antenna. Therefore, it is urgent for technical personnel to solve the above problems. Summary of the Utility Model
[0004] Therefore, in view of the above existing problems and defects, the designers of the present utility model collected relevant materials, through multi-party evaluation and consideration, and through continuous experiments and modifications by technical personnel with many years of R & D experience in this industry, finally led to the emergence of the reading scale for the electric tilt angle of the antenna.
[0005] In order to solve the above technical problems, the utility model relates to a downtilt angle reading scale for an electrically adjustable antenna, which is matched with a screw-driven linear module and indirectly reflects the change of the downtilt angle of the electrically adjustable antenna through its real-time reading. The downtilt angle reading scale for an electrically adjustable antenna is composed of a scale body and a pull rod. The pull rod performs a translational motion due to the drag force from the screw-driven linear module, and the real-time reading of the scale body is changed. With the help of an embedded buckle installation method, the scale body and the pull rod are combined into one. An insertion cavity for inserting the pull rod is formed at the buckle end of the scale body. The front side wall, the rear side wall, and the top wall of the insertion cavity are subjected to material removal processing to respectively form a front elastic pressure wing, a rear elastic pressure wing, and an upper elastic pressure wing. The inner side wall of the front elastic pressure wing continues to extend inward to form a front pressure protrusion. The inner side wall of the rear elastic pressure wing continues to extend inward to form a rear pressure protrusion. The lower side wall of the upper elastic pressure wing continues to extend downward to form a limiting protrusion. A limiting recess that matches the limiting protrusion is formed on the top wall of the pull rod. In the process of the pull rod gradually going deeper into the insertion cavity, the pull rod is automatically adjusted due to the elastic pressure force from the front pressure protrusion and the rear pressure protrusion. At the same time, the limiting protrusion is pressed against the top wall of the pull rod due to the elastic restoring force from the upper elastic pressure wing, and slides along the length direction of the pull rod until it sinks into the limiting recess.
[0006] As a further improvement of the technical solution disclosed in the utility model, the left side wall of the insertion cavity extends rightward to form an insertion resisting body. At the moment when the limiting protrusion sinks into the limiting depression, the left side wall of the pull rod just contacts the insertion resisting body critically.
[0007] As a further improvement of the technical solution disclosed in the utility model, the distance between the insertion retaining body and the front side wall of the insertion cavity is d1, and the distance between the insertion retaining body and the rear side wall of the insertion cavity is d2, then d1 = d2. The width of the insertion retaining body is w1, and the width of the insertion cavity is w2, then w1≤1 / 5w2.
[0008] As a further improvement of the technical solution disclosed in the utility model, the front pressure protrusion, the rear pressure protrusion and the limiting protrusion are all formed with wear-reducing inclined surfaces.
[0009] As a further improvement of the technical solution disclosed in the utility model, a reinforcing rib is formed on the ruler body. The reinforcing rib simultaneously connects the bottom wall of the ruler body and the left side wall of the buckle end thereof.
[0010] As a further improvement of the technical solution disclosed in the utility model, a wear-resistant plastic coating layer is formed on the pull rod and is wrapped throughout the entire length.
[0011] As a further improvement of the technical solution disclosed in the utility model, the raw material of the wear-resistant plastic coating layer is preferably polypropylene, polyethylene or nylon.
[0012] In practical applications, the electric tilt angle reading scale disclosed by the present utility model can achieve at least the following beneficial technical effects, specifically:
[0013] 1) The scale body and the pull rod are combined into one by means of an embedded snap-in mounting method. And during the process of the pull rod gradually inserting into the insertion cavity, the front elastic pressing fins and the rear elastic pressing fins always apply elastic pressing forces to the front and rear side walls of the pull rod, and the displacement direction of the pull rod can be self-corrected, which is conducive to the smooth implementation of the assembly process. And as the insertion process continues, the limit protrusions sink into the limit depressions, which means that the assembly operation is completed. The whole operation process is convenient, fast, time-saving and labor-saving;
[0014] 2) After the assembly operation is completed, the scale body can be accurately assembled with the pull rod under the synergistic action of the front elastic pressing fins, the rear elastic pressing fins and the limit protrusions, which is conducive to achieving the design purpose that the reading scale can reflect the change amount of the electric tilt angle of the antenna immediately and accurately;
[0015] 3) During the process of adjusting the electric tilt angle of the antenna, the pull rod is also always under the action of the common elastic pressing forces from the front elastic pressing fins and the rear elastic pressing fins, which can effectively eliminate the negative influence brought by the reciprocating exciting force, and is conducive to ensuring that the electric tilt angle reading scale of the antenna maintains excellent assembly accuracy within a relatively long time period, laying a good foundation for more accurately indirectly measuring the electric tilt angle of the antenna. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.
[0017] Figure 1 is a schematic diagram of the application state of the electric tilt angle reading scale disclosed in the present utility model.
[0018] Figure 2 is a three-dimensional schematic diagram of the electric tilt angle reading scale disclosed in the present utility model (in the state where the assembly process has not been completed).
[0019] Figure 3 is a three-dimensional schematic diagram of one perspective of the scale body in the electric tilt angle reading scale disclosed in the present utility model.
[0020] Figure 4 is Figure 3 the enlarged view of part I of
[0021] Figure 5 It is a three-dimensional schematic diagram of another perspective of the ruler body in the down-tilt angle reading scale of the electronically adjustable antenna disclosed by the present utility model.
[0022] Figure 6 It is Figure 5 The partial enlarged view of II.
[0023] Figure 7 It is Figure 5 The side view.
[0024] Figure 8 It is a three-dimensional schematic diagram of the pull rod in the down-tilt angle reading scale of the electronically adjustable antenna disclosed by the present utility model.
[0025] Figure 9 It is a three-dimensional schematic diagram of the down-tilt angle reading scale of the electronically adjustable antenna disclosed by the present utility model (in the state where the assembly process is completed).
[0026] Figure 10 It is Figure 9 The front view.
[0027] Figure 11 It is Figure 10 The sectional view taken along A-A.
[0028] Figure 12 It is Figure 9 The top view.
[0029] Figure 13 It is Figure 12 The sectional view taken along B-B.
[0030] 1 - Ruler body; 11 - Insertion cavity; 111 - Front elastic pressing fin; 1111 - Front pressing protrusion; 112 - Rear elastic pressing fin; 1121 - Rear pressing protrusion; 11211 - Anti-friction inclined surface; 113 - Upper elastic pressing fin; 1131 - Limit protrusion; 114 - Insertion resistance body; 12 - Reinforcing rib; 2 - Pull rod; 21 - Limit depression. Detailed implementation manners
[0031] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "left", "right", "upper", "lower", "front", "rear", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model 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 thus should not be construed as a limitation to the present utility model.
[0032] The following combines specific embodiments to further elaborate on the content of the present utility model. Figure 1The figure shows a schematic diagram of the application state of the down-tilt reading scale of the electronically adjustable antenna disclosed in the present utility model. It can be seen that it mainly consists of several parts such as the down-tilt reading scale of the electronically adjustable antenna and the screw-driven linear module. Among them, multiple down-tilt reading scales of the electronically adjustable antenna cooperate with each other, and the change curve of the down-tilt of the electronically adjustable antenna is fitted through the reading change amounts of the multiple down-tilt reading scales of the electronically adjustable antenna, so as to indirectly reflect the change of the down-tilt of the electronically adjustable antenna. The down-tilt reading scale of the electronically adjustable antenna is independently driven by the corresponding screw-driven linear module, and it is composed of a scale body 1 and a pull rod 2 (as shown in Figure 2 shown). In practical applications, the pull rod 2 performs a translational motion due to the dragging force from the screw-driven linear module, and the real-time reading of the scale body 1 changes.
[0033] As shown in Figure 2 shown, by means of the embedded snap-fit installation method, the scale body 1 and the pull rod 2 are combined into one. As shown in Figures 3 - 6 shown, an insertion cavity 11 for the pull rod 2 to be inserted is formed at the snap end of the scale body 1. The front side wall, rear side wall, and top wall of the insertion cavity 11 are subjected to material removal treatment to form a front elastic pressing fin 111, a rear elastic pressing fin 112, and an upper elastic pressing fin 113 respectively. The inner side wall of the front elastic pressing fin 111 continues to extend inward to form a front pressing protrusion 1111. The inner side wall of the rear elastic pressing fin 112 continues to extend inward to form a rear pressing protrusion 1121. The lower side wall of the upper elastic pressing fin 113 continues to extend downward to form a limiting protrusion 1131. As shown in Figure 8 shown, a limiting depression 21 adapted to the above-mentioned limiting protrusion 1131 is formed on the top wall of the pull rod 2. During the process of the pull rod 2 gradually penetrating into the insertion cavity 11, the pull rod 2 is self-corrected in direction due to the elastic abutting forces from the front pressing protrusion 1111 and the rear pressing protrusion 1121 at the same time. At the same time, the limiting protrusion 1131 is pressed against the top wall of the pull rod 2 due to the elastic restoring force from the upper elastic pressing fin 113 and slides along the length direction of the pull rod 2 until it sinks into the limiting depression 21. At this moment, the scale body 1 and the pull rod 2 are assembled (as shown in Figures 9 - 13 shown).
[0034] In practical applications, the down-tilt reading scale of the electronically adjustable antenna disclosed in the present utility model has at least the following beneficial technical effects: specifically,
[0035] 1) The ruler body 1 and the pull rod 2 are combined into one by means of an embedded snap - fit installation method. And during the process of the pull rod 2 gradually inserting into the insertion cavity 11, the front elastic pressing fin 111 and the rear elastic pressing fin 112 always apply elastic pressing forces to the front and rear side walls of the pull rod 2, and the displacement direction of the pull rod 2 can be self - corrected, which is conducive to the smooth implementation of the assembly process. And subsequently, as the insertion process continues, the limit protrusion 1131 sinks into the limit recess 21, which means that the assembly operation is completed. The whole operation process is convenient, fast, time - saving and labor - saving;
[0036] 2) After the assembly operation is completed, the ruler body 1 can achieve precise assembly with the pull rod 2 under the synergistic action of the front elastic pressing fin 111, the rear elastic pressing fin 112 and the limit protrusion 1131. Furthermore, it is conducive to achieving the design purpose that the reading scale can immediately and accurately reflect the change amount of the down - tilt angle of the electrically - adjustable antenna;
[0037] Here, it should be emphasized that during the process of adjusting the down - tilt angle of the electrically - adjustable antenna, the pull rod 2 is also always under the action of the combined elastic pressing forces from the front elastic pressing fin 111 and the rear elastic pressing fin 112, which can effectively eliminate the negative impact brought by the reciprocating excitation force, and is conducive to ensuring that the reading scale of the down - tilt angle of the electrically - adjustable antenna can maintain excellent assembly accuracy within a relatively long time period, laying a good foundation for its more accurate indirect measurement of the down - tilt angle of the electrically - adjustable antenna.
[0038] As Figure 5 、 6 shown in 12 and 13, the left side wall of the insertion cavity 11 extends to the right to form an insertion resisting body 114. At the moment when the limit protrusion 1131 sinks into the limit recess 21, the left side wall of the pull rod 2 just critically touches the insertion resisting body 114. In this way, it effectively avoids the occurrence of the problem of the installation attitude deviation of the pull rod 2 caused by the burrs and out - of - tolerance flatness defects generated by the truncation processing, ensures that the pull rod 2 can be smoothly and correctly inserted into the insertion cavity 11, and ensures that it has extremely high relative position accuracy after being assembled with the ruler body 1.
[0039] For the purpose of ensuring that the performance advantages of the insertion resisting body 114 can be more fully exerted in the actual assembly process and ensuring that the pull rod 2 can be correctly inserted into the insertion cavity 11, as a further optimization of the above - mentioned technical solution, in this embodiment, the forming position and the width dimension of the insertion resisting body 114 are also limited. Specifically, as Figure 7 shown in, assume that the distance between the insertion resisting body 114 and the front side wall of the insertion cavity 11 is d1, and the distance between the insertion resisting body 114 and the rear side wall of the insertion cavity 11 is d2, then d1 = d2. Assume that the width value of the insertion resisting body 114 is w1, and the width value of the insertion cavity 11 is w2, then w1 ≤ 1 / 5w2.
[0040] As can be clearly seen from Figure 6 shown in the figure, after the rear pressure projection 1121 is formed, it is necessary to perform bevel cutting on it to form the anti-friction bevel 11211. In this way, when the pull rod 2 is inserted relative to the scale body 1, the direct contact area between the two is greatly reduced, which is beneficial to reducing the relative friction force, and thus the insertion force required during the process of inserting the pull rod 2 into the insertion cavity 11 is effectively reduced.
[0041] For the purpose of achieving the same design objective, the front pressure projection 1111 and the limit projection 1131 can also be bevel cut analogously to the rear pressure projection 1121 (not shown in the figure).
[0042] As Figure 4 shown in the figure, a reinforcing rib 12 is formed on the scale body 1. The reinforcing rib 12 is connected to both the bottom wall of the scale body 1 and the left side wall of its buckle end. The number of the reinforcing ribs 12 is set to 2 and they are arranged oppositely along the front-back direction. The structural strength and structural stability of the buckle end are greatly enhanced, which not only effectively avoids the occurrence of the phenomenon that the buckle end breaks and falls off the scale body 1 due to the action of the reciprocating vibration force, but also avoids the phenomenon that the amplitude of the scale body 1 seriously exceeds the standard due to the action of the reciprocating vibration force during the actual application process, ensuring that the real-time reading of the electric adjustment antenna downtilt reading scale can be read quickly and accurately.
[0043] It is known that the pull rod 2 performs a displacement movement under the action of the driving force from the screw-driven linear module. During this period, the outer wall of the pull rod 2 is easily worn, which will not only damage its appearance but also affect its displacement accuracy. In view of this, as a further optimization of the above technical solution, an anti-wear plastic coating layer is formed on the pull rod 2 and is wrapped throughout (not shown in the figure). And the raw material of the anti-wear plastic coating layer is preferably polypropylene, polyethylene or nylon with excellent anti-wear performance and easy to achieve plastic coating molding.
[0044] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A downtilt angle reading scale for an electrically adjustable antenna, which is matched with a screw-driven linear module and indirectly reflects the change of the downtilt angle of the electrically adjustable antenna through its real-time reading; the downtilt angle reading scale for an electrically adjustable antenna is composed of a scale body and a pull rod; the pull rod performs a translational motion due to the drag force from the screw-driven linear module, and the real-time reading of the scale body changes, characterized in that: By means of an embedded buckle installation method, the ruler body and the pull rod are combined into one body; an insertion cavity for inserting the pull rod is formed at the buckle end of the ruler body; the front side wall, the rear side wall and the top wall of the insertion cavity are subjected to material removal processing to respectively form a front elastic pressure wing, a rear elastic pressure wing and an upper elastic pressure wing; the inner side wall of the front elastic pressure wing continues to extend inward to form a front pressure protrusion; The inner side wall of the rear elastic pressure wing continues to extend inward to form a rear pressure protrusion; the lower side wall of the upper elastic pressure wing continues to extend downward to form a limiting protrusion; a limiting depression matched with the limiting protrusion is formed on the top wall of the pull rod; in the process of the pull rod gradually penetrating into the insertion cavity, the pull rod adjusts its direction by itself due to the elastic supporting force from the front pressure protrusion and the rear pressure protrusion at the same time, and at the same time, the limiting protrusion is pressed against the top wall of the pull rod due to the elastic restoring force from the upper elastic pressure wing, and slides along the length direction of the pull rod until it sinks into the limiting depression.
2. The downtilt angle reading scale of the electrically adjustable antenna according to claim 1, characterized in that The left side wall of the insertion cavity extends to the right to form an insertion resisting body; at the moment when the limiting protrusion sinks into the limiting depression, the left side wall of the pull rod just contacts the critical point of the insertion resisting body.
3. The downtilt angle reading scale of the electrically adjustable antenna according to claim 2, characterized in that , the distance between the plug-in stopper and the front side wall of the plug-in cavity is d1, and the distance between the plug-in stopper and the rear side wall of the plug-in cavity is d2, then d1=d2; the width of the plug-in stopper is w1, and the width of the plug-in cavity is w2, then w1≤1 / 5w2.
4. The downtilt angle reading scale of the electrically adjustable antenna according to claim 1, characterized in that The front pressure protrusion, the rear pressure protrusion and the limiting protrusion are all formed with wear-reducing inclined surfaces.
5. The downtilt angle reading scale of the electrically adjustable antenna according to any one of claims 1 to 4, characterized in that , reinforcing ribs are formed on the ruler body; the reinforcing ribs simultaneously connect the bottom wall of the ruler body and the left side wall of its buckle end.
6. The downtilt angle reading scale of the electrically adjustable antenna according to any one of claims 1 to 4, characterized in that The pull rod is formed with a wear-resistant plastic coating layer and is wrapped throughout the entire length.
7. The downtilt angle reading scale of the electrically adjustable antenna according to claim 6, characterized in that The raw material of the wear-resistant plastic coating layer is polypropylene, polyethylene or nylon.