Low frequency isolation strip and antenna

Abstract

The application discloses a low-frequency isolation strip, which belongs to the field of antennas. The base is configured in a rectangular shape and has a rectangular groove; the isolation strip body is movably arranged in the groove; the conductor segment is arranged on the isolation strip body; the resonance structure is arranged on the isolation strip body and located on both sides of the conductor segment; the rotating rod is rotatably arranged at the bottom of the groove; the lifting block is arranged on the rotating rod; the elastic member is arranged on the isolation strip body; the hinged rod is connected with the elastic member and the lifting block; the lifting mechanism is arranged on the base and used for driving the movement of the isolation strip body; wherein the rotating rod is provided with an outer screw groove and is in threaded connection with the lifting block; one end of the hinged rod is rotatably connected with the lifting block, and the other end is rotatably connected with the elastic member; so that the upward and downward movement of the lifting block can drive the upward movement of the isolation strip body. The low-frequency isolation strip has good adaptability and stability.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of antennas, in particular to a low-frequency isolation strip. BACKGROUND

[0002] In recent years, with the rapid development of communication technology, the antenna technology applied to the communication system also develops towards the direction of miniaturization and multi-band structure. In the communication system, a base station usually has a multi-band antenna including a low-frequency antenna array and a high-frequency antenna array. Generally, the height of the low-frequency radiation unit of the low-frequency antenna array is higher than the height of the high-frequency radiation unit of the high-frequency antenna array. At present, in order to improve the isolation degree (mutual coupling) of the low-frequency radiation unit of the low-frequency antenna array of the multi-band antenna, an isolation strip is generally arranged between the low-frequency radiation units of the low-frequency antenna array.

[0003] For example, a new low-frequency isolation strip and antenna (CN202210437807.6) includes an isolation strip body. The isolation strip body includes a conductor segment, a plurality of resonant structures are arranged at the side end of the conductor segment, and each resonant structure is not in contact with the conductor segment. The height of the isolation strip body is lower than the height of the high-frequency radiation unit.

[0004] In the above structure, the height of the isolation strip body is directly constant. If the low-frequency radiation unit or the high-frequency radiation unit is replaced with an original element, the height of the low-frequency radiation unit or the high-frequency radiation unit is higher than the height of the isolation strip body, and the isolation strip body needs to be re-adapted. In this way, the adaptability is reduced. In addition, when the height of the isolation strip body is increased, the frequency of vibration in daily use will be greater, which will affect the elements on the isolation strip body.

[0005] There is no low-frequency isolation strip that increases adaptability and stability at present. SUMMARY

[0006] The summary part of the present application is used to introduce the concept in a simple form, which will be described in detail in the specific embodiment part. The summary part of the present application is not intended to identify the key features or essential features of the claimed technical solution, nor is it intended to limit the scope of the claimed technical solution.

[0007] In order to solve the technical problems mentioned in the background part, some embodiments of the present application provide a low-frequency isolation strip, a base, which is configured to be rectangular and has a rectangular groove;

[0008] An isolation strip body is movably arranged in the groove;

[0009] A conductor segment is arranged on the isolation strip body;

[0010] A resonant structure is arranged on the isolation strip body and located on both sides of the conductor segment

[0011] The low-frequency isolation strip further comprises:

[0012] A rotating rod is rotatably arranged at the bottom of the groove;

[0013] A lifting block is arranged on the rotating rod;

[0014] An elastic member is arranged on the isolation strip body;

[0015] A hinged rod connects the elastic member and the lifting block;

[0016] A driving mechanism is arranged on the base for driving the movement of the isolation strip body;

[0017] The rotating rod is provided with an outer screw groove and is in threaded connection with the lifting block. One end of the hinged rod is rotatably connected with the lifting block, and the other end is rotatably connected with the elastic member. The upward and downward movement of the lifting block can drive the upward movement of the isolation strip body.

[0018] During operation, the driving mechanism is driven to start rotating the rotating rod. At this time, the hinged rod limits the lifting block in the circumferential direction, so that the lifting block can only move upward. Then the hinged rod moves upward against the elastic member, thereby moving the isolation strip body upward. In this way, the height of the isolation strip body can be adjusted. In addition, due to the arrangement of the elastic member, the isolation strip body can be damped after the height is increased, thereby increasing the stability.

[0019] Further, the surface opposite to the bottom surface of the groove of the isolation strip body is concave to form a circular arc groove;

[0020] The elastic member is in the shape of a circular arc and is made of spring steel and has elasticity. Both ends of the elastic member are fixedly arranged on the inner wall of the circular arc groove. The circular arc surface of the elastic member is arranged opposite to the circular arc surface of the circular arc groove.

[0021] One end of the hinged rod is rotatably arranged at the center of the elastic member.

[0022] Further, the bottom part of the groove is protruded to form a boss. The surface of the boss is concave to the bottom surface of the groove to form a cylindrical groove. The bottom end of the rotating rod is inserted into the bottom part of the groove, so that the rotating rod is rotatably arranged at the bottom of the groove. The rotating rod is located in the cylindrical groove.

[0023] Further, the driving mechanism comprises:

[0024] A guide rail is arranged on the side wall of the boss;

[0025] A sliding block is movably arranged on the guide rail;

[0026] A fixed ring is arranged on the isolation strip body;

[0027] rotary gear, fixedly arranged at the bottom of the rotary rod;

[0028] rotary roller, rotatably arranged on the base;

[0029] wherein the rotary roller is provided with a driving gear engaged with the rotary gear; the driving gear is rotated to rotate the rotary gear.

[0030] Further, the side wall portion of the boss is concave to form a guide rail, and the two inner wall portions of the guide rail are concave to form a limiting slot;

[0031] The slider portion is inserted into the limiting slot, so that the slider can only slide along the direction of the guide rail;

[0032] wherein the inner wall of the fixed ring is further provided with a fixed plate connected with the slider; the fixed plate is provided with a buffer assembly.

[0033] Further, the end portion of the fixed plate close to the slider is concave to form an inlay slot;

[0034] The slider is fixedly provided with a protrusion, which is inserted into the inlay slot

[0035] wherein the inlay slot and the protrusion are gap-fitted.

[0036] Further, the buffer assembly comprises:

[0037] a buffer spring, connected between the fixed plate and the inner wall of the inlay slot;

[0038] a limiting rod, movably arranged in the slider;

[0039] a limiting hole, opened on the inner wall of the limiting slot;

[0040] a pressing plate, transversely movably arranged on the inner wall of the guide rail and abutting against the limiting rod;

[0041] a driving block, arranged on the rotary rod;

[0042] a torsional spring, connected between the rotary rod and the driving block;

[0043] a pressing rod, one end of which is fixedly connected to the pressing plate and movably embedded in the boss, and the other end portion of which protrudes from the inner wall of the cylindrical slot;

[0044] wherein the side wall of the driving block is provided with an arc block abutting against the pressing rod.

[0045] Further, it comprises a mounting plate and a plurality of low-frequency radiation units mounted on the mounting plate; the low-frequency radiation units are uniformly arranged along the length direction of the mounting plate;

[0046] wherein the low-frequency isolation strip is mounted between two adjacent low-frequency radiation units.

[0047] Further, the low-frequency radiation units are connected together by radio frequency network.

[0048] Further, the height of the isolation strip body is always higher than the low-frequency radiation unit.

[0049] The low-frequency isolation strip provided by the application has the advantages that the adaptability and stability are improved. BRIEF DESCRIPTION OF DRAWINGS

[0050] The drawings constituting a part of the application are used to provide further understanding of the application, so that other features, objects and advantages of the application become more apparent. The illustrative embodiment drawings of the application and their descriptions are used to explain the application, and do not constitute undue limitation on the application.

[0051] In addition, throughout the drawings, the same or similar reference signs represent the same or similar elements. It should be understood that the drawings are schematic, and the elements and elements are not necessarily drawn according to the scale.

[0052] In the drawings:

[0053] Figure 1 is a whole schematic diagram according to the embodiment of the application;

[0054] Figure 2 is a structural schematic diagram which is part of the embodiment, mainly showing the structure of the isolation strip body;

[0055] Figure 3 is a structural schematic diagram which is part of the embodiment, mainly showing the structure of the resonant structure;

[0056] Figure 4 is a structural schematic diagram which is part of the embodiment, mainly showing the half-section schematic diagram of the isolation strip body;

[0057] Figure 5 is a structural schematic diagram which is part of the embodiment, mainly showing the structure of the boss;

[0058] Figure 6 is a structural schematic diagram which is part of the embodiment, mainly showing the structure of the guide rail;

[0059] Figure 7 is Figure 6 the enlarged view of A of the embodiment;

[0060] Figure 8 is a structural schematic diagram which is part of the embodiment, mainly showing the structure of the buffer assembly;

[0061] Figure 9 is a structural schematic diagram which is part of the embodiment, mainly showing the structure of the lifting plate and the rotating rod;

[0062] Figure 10 is a structural schematic diagram that is part of an embodiment, mainly showing the structure of the pressing plate and the pressing rod.

[0063] Reference signs:

[0064] 1, base; 10, groove;

[0065] 2, spacer body; 21, circular arc groove;

[0066] 3, conductor segment; 12, notch; 11, conductor;

[0067] 4, resonance structure;

[0068] 5, boss; 51, cylindrical groove;

[0069] 6, rotating rod; 61, external screw groove; 62, rotating gear;

[0070] 7, lifting block;

[0071] 8, elastic member;

[0072] 9, hinged rod;

[0073] 101, guide rail; 102, limiting groove; 1020, sliding block; 1021, protrusion; 103, fixed ring; 1031, fixed plate; 104, buffer assembly; 105, inlaid groove; 1040, buffer spring; 1041, limiting rod; 1022, limiting hole; 1042, pressing plate; 1043, pressing rod; 1044, driving block; 1045, torsional spring;

[0074] 200, mounting plate; 100, low-frequency radiation unit. DETAILED DESCRIPTION

[0075] Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure can be implemented in various forms, and should not be interpreted as being limited to the embodiments set forth herein. On the contrary, these embodiments are provided so as to make the present disclosure more thorough and complete. It should be understood that the drawings and embodiments of the present disclosure are only for exemplary purposes, and are not intended to limit the scope of protection of the present disclosure.

[0076] It should also be noted that, for the sake of description, only the parts related to the invention are shown in the drawings. The embodiments in the present disclosure and the features in the embodiments can be combined with each other without conflict.

[0077] It should be noted that the terms "first", "second", and the like in the present disclosure are only used to distinguish different devices, modules or units, and are not intended to limit the order or interdependence of the functions performed by these devices, modules or units.

[0078] It should be noted that the terms "one", "multiple" in the present disclosure are illustrative and not restrictive, and those skilled in the art should understand that "one or more" should be understood unless otherwise explicitly indicated in the context.

[0079] The present disclosure will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0080] A low-frequency isolation strip, comprising: a base 1, an isolation strip body 2, a conductor segment 3, a resonance structure 4;

[0081] The base 1 is configured in a rectangular shape and has a rectangular groove 10; the isolation strip body 2 is inserted into the groove 10, and the upper surface of the isolation strip body 2 is flush with the upper surface of the base 1; the side wall of the groove 10 is provided with a sliding groove, and the side wall of the isolation strip body 2 is partially protruding and inserted into the sliding groove, so that the isolation strip body 2 slides along the track of the sliding groove; the conductor segment 3 is fixedly arranged on the surface of the isolation strip body 2, and the length of the conductor segment 3 is the same as the length of the isolation strip body 2; wherein, the conductor segment 3 is located at the middle position of the isolation strip body 2; the resonance structure 4 is provided with a plurality of structures, which are uniformly spaced along the length direction of the conductor segment 3 and arranged on one side or both sides of the conductor segment 3, and cooperate with the conductor segment 3 to form a low-frequency isolation structure;

[0082] More specifically, the resonance structure 4 comprises a conductor formed by a plurality of conductors 11 connected to each other, and a notch 12 is formed on the conductor for making the conductor equivalent to a capacitive effect when an induced current is generated on the conductor;

[0083] The conductor is a square conductor structure formed by a plurality of conductors 11 coupled and connected together, and the notch 12 is formed on the conductor away from one end of the conductor segment 3; when an induced current is generated on the conductor, the equivalent capacitive effect of the notch 12 can make the conductors 11 located at both ends of the notch 12 form a voltage difference between each other, thereby driving the induced current to flow on the conductor to form an eddy current;

[0084] The low-frequency isolation strip also includes: a boss 5, a rotating rod 6, a lifting block 7, an elastic element 8, and a hinge rod 9; the bottom part of the groove 10 protrudes to form the boss 5, preferably, the boss 5 is cylindrical; the surface part of the boss 5 is recessed to the bottom surface of the groove 10 to form a cylindrical groove 51; the bottom end of the rotating rod 6 is inserted into the bottom part of the groove 10 so that the rotating rod 6 is rotatably set at the bottom of the groove 10; and the rotating rod 6 is located in the cylindrical groove 51; the lifting block 7 is set on the rotating rod 6, more specifically, the rotating rod 6 has an external threaded groove 61, which is threadedly connected to the lifting block 7; one end of the hinge rod 9 is rotatably connected to the lifting block 7, and the other end is rotatably connected to the elastic element 8; so that the up and down movement of the lifting block 7 can drive the isolation strip body 2 to move upward; thus, the height of the isolation strip body 2 can be adjusted according to the actual situation, improving adaptability;

[0085] More specifically, the base 1 is equipped with a drive mechanism for driving the rotating rod 6 to rotate.

[0086] The surface portion of the isolation strip body 2 facing the bottom surface of the groove 10 is recessed into an arc groove 21; the elastic element 8 is arc-shaped, made of spring steel, and has elasticity; both ends of the elastic element 8 are fixed to the inner wall of the arc groove 21; and the arc surface of the elastic element 8 is opposite to the arc surface of the arc groove 21; wherein, one end of the hinge rod 9 is rotatably set at the center position of the elastic element 8; due to the setting of the elastic element 8, the isolation strip body 2 can be buffered during use, and the shock absorption effect is achieved; further improving the stability of use;

[0087] The drive mechanism includes: guide rail 101, slider 1020, and rotary gear 62;

[0088] The side wall portion of the boss 5 is recessed to form a guide rail 101, and the two inner side wall portions of the guide rail 101 are recessed to form a limiting groove 102; the limiting groove 102 extends along the trajectory of the guide rail 101 so that the cross-section of the guide rail 101 and the limiting groove 102 forms a convex shape; the slider 1020 is partially inserted into the limiting groove 102 so that the slider 1020 can only slide along the trajectory direction of the guide rail 101;

[0089] More specifically, the surface portion of the isolation strip body 2 that is opposite to the bottom of the groove 10 protrudes to form a fixing ring 103, which is fixed in a circular shape; wherein, the inner wall portion of the fixing ring 103 protrudes in the direction of the guide rail 101 to form a fixing plate 1031, and the fixing plate 1031 is connected to the slider 1020.

[0090] More specifically, the fixed plate 1031 is recessed in the end portion of the slider 1020 to form an inlay groove 105; the slider 1020 is fixedly provided with a protrusion 1021 which is inserted into the inlay groove; the inlay groove 105 is in clearance fit with the protrusion 1021; wherein, the buffer assembly 104 is arranged between the fixed plate 1031 and the slider 1020; the buffer assembly 104 is used to reduce the vibration between the fixed plate 1031 and the protrusion 1021.

[0091] More specifically, the bottom of the rotating rod 6 is further provided with a rotating gear 62; the base 1 is further embedded with a rotating roller, wherein the rotating roller is installed with a driving gear which is engaged with the rotating gear 62; the driving gear is rotated to rotate the rotating gear 62; more specifically, one end of the rotating roller protrudes from the side wall portion of the base 1, which is used to manually rotate the rotating roller to drive the rotating gear 62 to rotate; thus, the rotation of the rotating rod 6 is conveniently driven, and the convenience is improved.

[0092] The buffer assembly 104 comprises: a buffer spring 1040, a limiting rod 1041, a pressing plate 1042, and a driving block 1044.

[0093] The buffer spring 1040 is connected to the inner wall of the inlay groove 105 and the fixed plate 1031; more specifically, the surface portion of the fixed plate 1031 which is located in the inlay groove is recessed to form a spring groove, one end of the buffer spring 1040 is fixedly arranged at the bottom of the spring groove, and the other end is fixedly connected to the inner top wall of the inlay groove 105;

[0094] More specifically, the side wall portion of the slider 1020 is formed with a through hole in the length direction, the limiting rod 1041 is inserted into the through hole and connected to the inner wall of the through hole through a spring; so that the limiting rod 1041 is movably arranged on the slider 1020; the inner wall of the limiting groove 102 is further provided with a limiting hole 1022 corresponding to the limiting rod 1041; wherein the spring always gives the limiting rod 1041 an elasticity away from the limiting hole 1022; one end portion of the limiting rod 1041 away from the limiting hole 1022 protrudes from the surface of the slider 1020;

[0095] The pressing plate 1042 is movably arranged on the inner wall of the guide rail 101 and in contact with the limiting rod 1041; preferably, the end portion of the limiting rod 1041 in contact with the pressing plate 1042 is installed with a ball; the side wall of the pressing plate 1042 is fixedly connected with a pressing rod 1043, one end of which is fixedly connected to the pressing plate 1042 and movably embedded in the boss 5, and the other end portion protrudes from the inner wall of the cylindrical groove 51; the driving block 1044 is arranged on the rotating rod 6 and the side wall portion thereof is protruded to form a circular arc block in contact with the pressing rod 1043; the driving block 1044 is in the shape of a circular ring, and the inner wall of the driving ring is connected to the rotating rod 6 through a torsional spring 1045;

[0096] More specifically, when the rotating rod 6 starts to rotate, it means that the driving isolation strip body 2 moves up; at this time, the driving block 1044 rotates and makes the circular arc block contact with the resisting rod 1043; at this time, the pressing plate 1042 contacts with the limiting rod 1041 to move; in this way, the limiting rod 1041 is inserted into the limiting hole 1022; in this way, the slider 1020 and the fixed plate 1031 are hard connected; in this way, when the isolation strip body 2 moves up, the slider 1020 and the isolation strip body 2 move synchronously, which improves the stability; when the rotating rod 6 does not rotate, the torsional spring 1045 loses the continuous torsional force and automatically resets; at this time, the circular arc block 1046 is separated from the resisting rod 1043, and the limiting rod 1041 resets; in this way, the slider 1020 and the fixed plate 1031 are connected through the buffer spring 1040 and automatically enter the shockproof state.

[0097] An antenna mounted with low-frequency isolation strips comprises a mounting plate 200 and a plurality of low-frequency radiation units 100 mounted on the mounting plate 200; the low-frequency radiation units 100 are arranged uniformly along the length direction of the mounting plate 200; wherein the low-frequency isolation strips are installed between two adjacent low-frequency radiation units 100; the low-frequency radiation units 100 are connected together by a plurality of low-frequency radiation arms through a radio frequency network; the height of the isolation strip body 2 is always higher than that of the low-frequency radiation unit 100.

[0098] The above description is only some of the preferred embodiments of the present disclosure and the explanation of the applied technical principles. Those skilled in the art should understand that the scope of the invention involved in the embodiments of the present disclosure is not limited to the technical solutions formed by the specific combinations of the above technical features, and should also cover other technical solutions formed by any combination of the above technical features or equivalent features without departing from the above inventive concept. For example, the above features are replaced with the technical features disclosed in the embodiments of the present disclosure (but not limited to) having similar functions to form technical solutions.

Claims

1. A low-frequency isolation strip comprising: a base configured in a rectangular shape and having a rectangular groove; an isolation strip body movably arranged in the groove; a conductor segment arranged on the isolation strip body; a resonance structure arranged on the isolation strip body and located on both sides of the conductor segment; characterized in that: the low-frequency isolation strip further comprises: a rotating rod rotatably arranged at the bottom of the groove; a lifting block arranged on the rotating rod; a resilient member arranged on the isolation strip body; a hinged rod connecting the resilient member and the lifting block; a driving mechanism arranged on the base for driving the movement of the isolation strip body; wherein an external screw groove is formed on the rotating rod and is in threaded connection with the lifting block; one end of the hinged rod is rotatably connected with the lifting block and the other end is rotatably connected with the resilient member; so that the upward and downward movement of the lifting block can drive the upward movement of the isolation strip body; a part of the bottom of the groove is protruded to form a boss, and a part of the surface of the boss is recessed to the bottom surface of the groove to form a cylindrical groove; the bottom end of the rotating rod is inserted into the bottom part of the groove, so that the rotating rod can be rotatably arranged at the bottom of the groove; wherein the rotating rod is located in the cylindrical groove; the driving mechanism comprises: a guide rail arranged on the side wall of the boss; a sliding block movably arranged on the guide rail; a fixed ring arranged on the isolation strip body; a rotating gear fixedly arranged at the bottom of the rotating rod; a rotating roller rotatably arranged on the base; wherein a driving gear is mounted on the rotating roller and is in meshing connection with the rotating gear; the driving gear is rotated to rotate the rotating gear; a part of the side wall of the boss is recessed to form the guide rail, and a part of the inner wall of the guide rail is recessed to form a limiting groove; a part of the sliding block is inserted into the limiting groove, so that the sliding block can only slide along the track direction of the guide rail; wherein the inner wall of the fixed ring is further provided with a fixed plate connected with the sliding block; a buffer assembly is arranged on the fixed plate; a part of the end of the fixed plate close to the sliding block is recessed to form an inlay groove; the sliding block is fixedly provided with a protrusion, and the protrusion is inserted into the inlay groove; wherein the inlay groove and the protrusion are gap-fitted; the buffer assembly comprises: a buffer spring connecting the fixed plate and the inner wall of the inlay groove; a limiting rod movably arranged in the sliding block; a limiting hole formed on the inner wall of the limiting groove; a pressing plate movably arranged on the inner wall of the guide rail and in abutting contact with the limiting rod; a driving block arranged on the rotating rod; a torsional spring connecting the rotating rod and the driving block; a pressing rod having one end fixedly connected with the pressing plate and movably embedded in the boss and the other end partially protruding from the inner wall of the cylindrical groove; wherein the side wall of the driving block is provided with a circular arc block in abutting contact with the pressing rod. 2.The low-frequency isolation strip according to claim 1, characterized in that: a part of the surface of the isolation strip body opposite to the bottom surface of the groove is recessed to form a circular arc groove. The elastic member is in a circular arc shape, made of spring steel, and has elasticity; both ends of the elastic member are fixed on the inner wall of the circular arc groove; and the circular arc surface of the elastic member is arranged opposite to the circular arc surface of the circular arc groove. One end of the articulated rod is rotatably arranged at the center of the elastic member.

3. An antenna provided with the low-frequency isolation strip of claim 1, characterized in that: The antenna comprises a mounting plate and a plurality of low-frequency radiation units mounted on the mounting plate; the low-frequency radiation units are uniformly arranged along the length direction of the mounting plate; The low-frequency isolation strip is mounted between two adjacent low-frequency radiation units.

4. The antenna provided with the low-frequency isolation strip of claim 3, characterized in that: The low-frequency radiation units are connected together by a radio frequency network through a plurality of low-frequency radiation arms.

5. The low-frequency isolation strip of claim 4, characterized in that: The height of the isolation strip body is always higher than that of the low-frequency radiation unit.

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