Antenna pull rod connecting device and phase shifting device

Abstract

The utility model relates to the technical field of mobile communication equipment, in particular to an antenna pull rod connecting device and a phase shifting device. Comprising a transmission part, a connecting part and a pull rod, one end of the pull rod is attached to one end of the transmission part, fixing holes are formed in the attaching faces of the pull rod and the transmission part respectively, the connecting part is fixedly connected with the transmission part in a clamped mode, and a positioning column is arranged on the connecting part and inserted into the fixing holes of the pull rod and the transmission part. The other end of the pull rod is used for being connected with a dielectric plate of the phase shifter. The transmission piece is used for being connected with an external driving device. The connecting piece is fixedly connected with the transmission piece in a clamping mode, the structure is simple, mounting and dismounting are convenient, maintenance and replacement of parts are facilitated, the positioning columns on the connecting piece are inserted into the fixing holes of the pull rod and the transmission piece, relative displacement between the transmission piece and the pull rod can be limited, and the transmission piece is convenient to maintain and replace. Therefore, the transmission part and the pull rod can be connected into a whole, the assembly structure is firm, and the assembly precision is high.

Description

Technical Field

[0001] The utility model relates to the technical field of mobile communication equipment, in particular to an antenna pull rod connecting device and a phase shifting device. Background Art

[0002] When working, the base station antenna usually needs to be tilted downward at a certain angle relative to the horizontal line. The size of this tilt angle can change the radiation range of the antenna. At present, the adjustment of the antenna downtilt angle is mainly carried out by mechanical downtilt and electrical downtilt. Electrical downtilt can be controlled by remote electrical adjustment, which is low in cost and is therefore increasingly widely used.

[0003] The base station antenna is usually connected to the driving device and the phase shifter through a pull rod. When the electrical downtilt angle of the base station antenna needs to be adjusted, the driving device drives the pull rod to pull the dielectric plate of the phase shifter, thereby adjusting the electrical downtilt angle of the base station antenna.

[0004] However, the installation and fixing method between the pull rod and the driving device in the prior art is relatively complicated, which is not conducive to installation and disassembly. In addition, if there is an assembly error between the pull rod and the driving device, the pull rod will move excessively or insufficiently during the transmission process, thereby affecting the phase shifting accuracy of the phase shifter. Utility Model Content

[0005] The purpose of the utility model is to provide an antenna rod connection device with a simple structure, convenient installation and high assembly accuracy, and a phase shifting device using the antenna rod connection device, so as to solve the technical problems raised in the background. To achieve the purpose of the utility model, the following technical solutions are adopted:

[0006] The first aspect of the utility model proposes an antenna pull rod connecting device, including a transmission member, a connecting member and a pull rod, one end of the pull rod is fitted with one end of the transmission member, and fixing holes are respectively provided on the fitting surfaces of the pull rod and the transmission member, the connecting member is fixedly connected to the transmission member by snapping and a positioning column is provided on the connecting member, the positioning column is inserted into the fixing holes of the pull rod and the transmission member, the other end of the pull rod is used to be connected to the dielectric plate of the phase shifter, and the transmission member is used to be connected to an external driving device.

[0007] A further improvement is that the transmission member is an elongated rod-shaped structure.

[0008] A further improvement is that threads are distributed along the length of the bottom surface of the transmission member.

[0009] A further improvement is that a limiting hole is provided at one end of the transmission member, and one end of the pull rod passes through the limiting hole and fits with one end of the transmission member.

[0010] A further improvement is that the connecting member comprises a top plate, and the left and right side edges of the top plate respectively extend downward to form elastic buckles, and the elastic buckles are snap-connected to the bottom surface of the transmission member.

[0011] A further improvement is that the positioning column is provided on the inner surface of the top plate.

[0012] A further improvement is that guide surfaces matching the elastic buckle are respectively provided on the left and right sides of one end of the transmission member.

[0013] A further improvement is that side ribs extend upward from the left and right side edges of the transmission member to form a groove for accommodating the pull rod.

[0014] A further improvement is that a protrusion is provided on the top of the side rib, and the bottom surface of the protrusion abuts against the top surface of the pull rod to achieve the limitation of the pull rod in the up and down directions.

[0015] The second aspect of the utility model proposes a phase shifting device, including a phase shifter, a driving device and an antenna pull rod connecting device as described in any one of the first aspects, the pull rod of the antenna pull rod connecting device is transmission connected to the dielectric plate of the phase shifter, and the transmission member of the antenna pull rod connecting device is transmission connected to the driving device.

[0016] The beneficial effects of the utility model are:

[0017] The connecting piece of the utility model is fixedly connected to the transmission piece by means of a snap connection, has a simple structure, is easy to install and disassemble, and is beneficial to maintenance and replacement of parts. The relative displacement between the transmission piece and the pull rod can be limited by inserting the positioning column on the connecting piece into the fixing hole of the pull rod and the transmission piece, so that the transmission piece and the pull rod can be connected as one. The assembly structure is firm and the assembly accuracy is high. When the transmission piece moves back and forth in the guide groove of the support seat of the external drive device, the pull rod can be driven to move synchronously. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of an antenna rod connection device of the utility model. Figure 1 ;

[0019] Figure 2 This is a schematic diagram of the structure of an antenna rod connection device of the utility model. Figure 2 ;

[0020] Figure 3 This is a schematic diagram of the structure of an antenna rod connection device of the utility model. Figure 3 ;

[0021] Figure 4This is a cross-sectional view of an antenna pull rod connecting device of the utility model.

[0022] Description of reference numerals:

[0023] 1. Transmission part; 11. Groove; 12. Fixing hole; 13. Bump; 14. Side rib; 15. Guide surface; 16. Limiting hole; 2. Connector; 21. Elastic buckle; 22. Positioning column; 3. Pull rod; 4. Support seat. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be understood that the specific implementation methods described here are only used to explain the utility model and do not limit the protection scope of the utility model.

[0025] It should be noted that when an element is referred to as being "fixed to", "disposed on", "fixed on" or "installed on" another element, it may be directly on the other element or there may be a central 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 a central element at the same time. Furthermore, when an element is considered to be "transmission-connected" to another element, the two can achieve power transmission, and its specific implementation method can be implemented using the existing technology, which will not be repeated here. When an element is perpendicular or approximately perpendicular to another element, it means that the ideal state of the two is vertical, but due to the influence of manufacturing and assembly, there may be a certain vertical error. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only and do not represent the only implementation method.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0027] The “first” and “second” involved in the present invention do not represent specific quantities and orders, but are merely used to distinguish names.

[0028] The following is combined with Figure 1 -Attached Figure 4 The embodiments of the present invention are described in detail:

[0029] The first aspect of an embodiment of the utility model proposes an antenna pull rod connecting device, comprising a transmission member 1, a connecting member 2 and a pull rod 3, one end of the pull rod 3 is fitted with one end of the transmission member 1, and fixing holes 12 are respectively provided on the fitting surfaces of the pull rod 3 and the transmission member 1, the connecting member 2 is fixedly connected to the transmission member 1 by snapping, and a positioning column 22 is provided on the connecting member 2, and the positioning column 22 is inserted into the fixing holes 12 of the pull rod 3 and the transmission member 1, the other end of the pull rod 3 is used to be connected to a dielectric plate of a phase shifter (not shown in the figure), and the transmission member 1 is used to be connected to an external driving device (not shown in the figure).

[0030] It can be understood that the connecting member 2 of the utility model is fixedly connected to the transmission member 1 by a snap-on manner, has a simple structure, is easy to install and disassemble, and is conducive to maintenance and replacement of parts. The positioning column 22 on the connecting member 2 is inserted into the pull rod 3 and the fixing hole 12 of the transmission member 1 to limit the relative displacement between the transmission member 1 and the pull rod 3, so that the transmission member 1 and the pull rod 3 can be connected as a whole. The assembly structure is firm and the assembly accuracy is high. When the transmission member 1 moves back and forth in the guide groove of the support seat 4 of the external drive device, it can drive the pull rod 3 to move synchronously.

[0031] The connection stability and position accuracy are ensured by combining the positioning column 22 on the connecting member 2 with the pull rod 3 and the fixing hole 12 on the transmission member 1. The insertion of the positioning column 22 not only enhances the stability of the structure, but also avoids looseness during movement, thereby improving the positioning accuracy and reliability of the entire device.

[0032] Preferably, in this embodiment, the number of the fixing holes 12 on the pull rod 3 and the transmission member 1 is two respectively, and the number of the positioning columns 22 on the connecting member 2 is also two. Of course, those skilled in the art can also set the number of fixing holes 12 and positioning columns 22 according to actual needs.

[0033] In this embodiment, the transmission member 1 is a long bar-shaped structure, and the bottom surface of the transmission member 1 is provided with threads along the length direction, so as to cooperate with the threaded column of the external driving device and transmit the transmission through the threaded connection.

[0034] In a feasible solution of this embodiment, a limiting hole 16 is provided at one end of the transmission member 1, and one end of the pull rod 3 fits with one end of the transmission member 1 after passing through the limiting hole 16. Side ribs 14 extend upward from the left and right edges of the transmission member 1 to form a groove 11 for accommodating the pull rod 3.

[0035] It is understandable that one end of the pull rod 3 can pass through the limiting hole 16 of the transmission member 1 and be placed in the groove 11 of the transmission member 1, and the left and right sides of the pull rod 3 are respectively limited by the left and right side ribs 14 of the transmission member 1. In addition, the limiting hole 16 at the end of the transmission member 1 can also limit the pull rod 3 in the left and right directions and the up and down directions. This makes the assembly connection between the transmission member 1 and the pull rod 3 more secure.

[0036] In this embodiment, the connecting member 2 includes a top plate, and the left and right side edges of the top plate extend downward to form elastic buckles 21 respectively. The elastic buckles 21 are clamped on the bottom surface of the transmission member 1, and the positioning column 22 is provided on the inner surface of the top plate.

[0037] Furthermore, guide surfaces 15 adapted to the elastic buckle 21 are respectively provided on the left and right sides of one end of the transmission member 1 .

[0038] It is understandable that if Figure 4 As shown, the elastic buckle 21 of the connecting member 2 can be easily buckled on the bottom surface of the transmission member 1 by being pressed against the guide surface 15 of the transmission member 1. During the installation of the connecting member 2, the positioning column 22 passes through the fixing hole 12 on the pull rod 3 and the fixing hole 12 on the transmission member 1 in sequence, thereby fixing the pull rod 3 in the front-rear direction, and finally achieving the purpose of connecting the transmission member 1, the connecting member 2 and the pull rod 3 into one body.

[0039] In a feasible solution of this embodiment, a protrusion 13 is provided on the top of the side rib 14 , and the bottom surface of the protrusion 13 abuts against the top surface of the pull rod 3 to limit the pull rod 3 in the up and down directions.

[0040] The installation principle of the utility model is as follows: firstly, one end of the pull rod 3 is passed through the limiting hole 16 on the transmission member 1, and is placed in the groove 11 of the transmission member 1, and the fixing hole 12 on the pull rod 3 is made to correspond to the position of the fixing hole 12 on the transmission member 1, and then the elastic buckle 21 of the connecting member 2 is pressed against the guide surface 15 of the transmission member 1, so that the elastic buckle 21 is buckled on the bottom surface of the transmission member 1. At the same time, the positioning column 22 passes through the fixing hole 12 on the pull rod 3 and the fixing hole 12 on the transmission member 1 in sequence, and finally the purpose of connecting the transmission member 1, the connecting member 2 and the pull rod 3 into one body is achieved.

[0041] The second aspect of the embodiment of the utility model proposes a phase shifting device, including a phase shifter, a driving device, and an antenna rod connecting device as described in any one of the first aspects, wherein the rod 3 of the antenna rod connecting device is drivingly connected to the dielectric plate of the phase shifter, and the transmission member 1 of the antenna rod connecting device is drivingly connected to the driving device. Since the purpose of this embodiment is not to improve the structure of the driving device, those skilled in the art can refer to the prior art for the structure of the driving device, and this embodiment will not be described in detail here.

[0042] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above 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.

[0043] The above-mentioned embodiments only express the specific implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which are all protected by the utility model.

Claims

1. An antenna rod connection device, characterized in that: It includes a transmission member, a connecting member and a pull rod, one end of the pull rod is fitted with one end of the transmission member, fixing holes are respectively provided on the fitting surfaces of the pull rod and the transmission member, the connecting member is fixedly connected to the transmission member by snapping and a positioning column is provided on the connecting member, the positioning column is inserted into the fixing holes of the pull rod and the transmission member, the other end of the pull rod is used to be connected to the medium plate of the phase shifter, and the transmission member is used to be connected to an external driving device.

2. The antenna rod connection device according to claim 1, characterized in that: The transmission member is a long rod-shaped structure.

3. The antenna rod connection device according to claim 2, characterized in that: The bottom surface of the transmission member is provided with threads along the length direction.

4. The antenna rod connection device according to claim 1, characterized in that: A limiting hole is arranged at one end of the transmission member, and one end of the pull rod passes through the limiting hole and fits with one end of the transmission member.

5. The antenna rod connection device according to claim 1, characterized in that: The connecting member comprises a top plate, and the left and right side edges of the top plate respectively extend downward to form elastic buckles, and the elastic buckles are clamped on the bottom surface of the transmission member.

6. The antenna rod connection device according to claim 5, characterized in that: The positioning column is arranged on the inner surface of the top plate.

7. The antenna rod connection device according to claim 5, characterized in that: The left and right sides of one end of the transmission member are respectively provided with guide surfaces adapted to the elastic buckle.

8. The antenna rod connection device according to claim 1, characterized in that: Side ribs are extended upward from the left and right edges of the transmission member to form a groove for accommodating the pull rod.

9. The antenna rod connection device according to claim 8, characterized in that: A convex block is arranged on the top of the side rib, and the bottom surface of the convex block abuts against the top surface of the pull rod to realize the limitation of the pull rod in the up and down directions.

10. A phase shifting device, characterized in that: It comprises a phase shifter, a driving device and an antenna pull rod connecting device as described in any one of claims 1 to 9, wherein the pull rod of the antenna pull rod connecting device is transmission-connected to the dielectric plate of the phase shifter, and the transmission member of the antenna pull rod connecting device is transmission-connected to the driving device.

Images