Clamping device for antennas

Abstract

To provide an antenna clamping device that can mount antenna equipment on a support pole with minimal spacing. [Solution] The antenna clamping device includes a mounting bracket part that mediates the connection of the antenna equipment to a support pole arranged long in the longitudinal direction, and an antenna steering drive part that is connected to the mounting bracket part and drives the rear of the antenna equipment to be steerable relative to the longitudinal direction of the support pole. The antenna steering drive part includes a pair of moving sticks whose front ends are connected to the rear of the antenna equipment, and the pair of moving sticks are moved the same distance or different distances across the support pole to tilt or rotate the rear of the antenna equipment relative to the longitudinal direction of the support pole. This configuration makes it easy to adjust the directionality of the antenna equipment.

Description

[Technical field]

[0001] The present invention relates to a clamping apparatus for an antenna, and more particularly to a clamping apparatus for an antenna that can reduce the cost of installation space required when an antenna is excessively spaced from a support pole, and can easily perform steering rotation of an antenna device, including tilting rotation and rotating rotation, within a limited installation space. [Background technology]

[0002] In a mobile communication system, a "base station" refers to a system that relays radio waves from mobile terminals within a cell. Base stations are mainly installed on rooftops of buildings to relay radio waves from mobile terminals. Therefore, a base station exists for each cell, and in addition to providing an interface function between the mobile terminals and the switching center, such base stations also control the sending of incoming and outgoing signals, the designation of call channels, and the monitoring of call channels on a cell-by-cell basis. Antenna devices used in base stations are becoming popular due to the advantage that many of them are controllable antennas capable of beam tilting vertically or horizontally.

[0003] As mobile communication services become more popular, antenna devices that provide a wireless network environment that can provide more stable services are becoming more widespread, and mobile communication services have moved from 2G (2nd Generation), which only allowed wired calls, to 3G, 4G, pre-5G, and recently 5G. Antenna devices for such 5G mobile communication are installed together with existing 4G and pre-5G, and their installation locations can be shared.

[0004] However, in the conventional base station antenna device, a large number of antenna devices of various products from various manufacturers must be installed in a single support pole. In this case, the administrator who manages and rents the support pole requests that the antenna devices be installed as close to the support pole as possible in order to rent more antenna installation space. If more than the specified space is required for the installation of the antenna devices, the space rental fee increases.

[0005] In particular, for efficient operation of beamforming, the antenna device needs to adjust its directionality by tilting or rotating, but the space required for such direction adjustment must be secured, which increases the space usage. Summary of the Invention [Problem to be solved by the invention]

[0006] The present invention has been made to solve the above technical problems, and has an object to provide an antenna clamping device that can install antenna equipment on a support pole with a minimum spacing.

[0007] Another object of the present invention is to provide an antenna clamping device that is easy to install on a support pole of an antenna device and that allows easy adjustment of the direction of the antenna device, including tilting and rotating.

[0008] Another object of the present invention is to provide an antenna clamping device that can greatly improve installation adaptability by selecting and applying a specification that allows only directional adjustment by tilting rotation, or a specification that allows directional adjustment by rotating rotation in addition to tilting rotation, in order to suit the installation location of the antenna equipment.

[0009] The technical problems of the present invention are not limited to those mentioned above, and other technical problems not mentioned will be clearly understood by those skilled in the art from the following description. [Means for solving the problem]

[0010] An embodiment of an antenna clamping device according to the present invention includes a mounting bracket portion that mediates the connection of an antenna device to a longitudinally extending support pole, and an antenna steering drive portion that is connected to the mounting bracket portion and drives the rear of the antenna device to be steerable in the longitudinal direction of the support pole, the antenna steering drive portion including a pair of moving sticks whose front ends are connected to the rear of the antenna device, and the pair of moving sticks are moved the same distance or different distances across the support pole to tilt or rotate the rear of the antenna device in the longitudinal direction of the support pole.

[0011] Here, the antenna steering drive unit further includes a steering drive motor that drives one of the pair of moving sticks (hereinafter referred to as the "first stick") to rotate about an axis, and a motor housing that is connected to the mounting bracket portion and incorporates the steering drive motor, and the pair of moving sticks can move in the forward and backward directions according to the operating direction of the steering drive motor while passing through the motor housing in the forward and backward directions.

[0012] In addition, a screw gear is formed on the outer peripheral surface of the first stick so that the axial rotation driving force from the steering drive motor is transmitted, and the other of the pair of moving sticks (hereinafter referred to as the "second stick") moves while penetrating the motor housing in the front-to-rear direction a distance equal to the axial moving distance of the first stick.

[0013] In addition, the antenna steering drive unit may further include a drive gear connected to an end of a motor shaft of the steering drive motor, and a ring gear provided inside the motor housing and surrounding an outer circumferential surface of the first stick, with an internal gear formed on its inner circumferential surface to mesh with the screw gear of the first stick, and an external gear formed on its outer circumferential surface to mesh with the drive gear.

[0014] In addition, the antenna steering drive unit further includes a steering drive motor that drives one of the pair of moving sticks (hereinafter referred to as the "first stick") and the other (hereinafter referred to as the "second stick") to rotate about an axis simultaneously, and a motor housing that is connected to the mounting bracket portion and incorporates the steering drive motor, and the pair of moving sticks can move in the forward and backward directions according to the operating direction of the steering drive motor while passing through the motor housing in the forward and backward directions.

[0015] In addition, screw gears are formed on the outer peripheral surfaces of the first stick and the second stick so that the axial rotation driving force from the steering drive motor is transmitted, and the second stick is moved while penetrating the motor housing in the front-to-rear direction a distance equal to the axial moving distance of the first stick.

[0016] In addition, the steering drive motor may include a first motor shaft and a second motor shaft extending toward the first stick and the second stick, respectively, inside the motor housing, and the antenna steering drive unit may further include a first drive gear and a second drive gear respectively coupled to the first motor shaft end and the second motor shaft end of the steering drive motor, and a first ring gear and a second ring gear provided inside the motor housing and surrounding the outer circumferential surfaces of the first stick and the second stick, with internal gears formed on their inner circumferential surfaces that mesh with the screw gears of the first stick and the second stick, and with external gears formed on their outer circumferential surfaces that mesh with the first drive gear and the second drive gear.

[0017] In addition, the first drive gear and the second drive gear are provided by worm gears arranged perpendicular to the rotation axes of the first and second walking sticks, and the first ring gear and the second ring gear are provided by worm wheel gears that mesh with the worm gears and rotate coaxially with the rotation axes of the first and second walking sticks.

[0018] In addition, the antenna steering driving unit may further include at least one support bearing disposed inside the motor housing for rotatably supporting a first driving gear and a second driving gear provided at an end of the first motor shaft and an end of the second motor shaft and the worm gear.

[0019] The antenna steering drive unit further includes a first steering drive motor that drives one of the pair of moving sticks (hereinafter referred to as the "first stick") to rotate about an axis, a second steering drive motor that drives the other of the pair of moving sticks (hereinafter referred to as the "second stick") to rotate about an axis, and a pair of motor housings that are respectively connected to the mounting bracket portion and that incorporate the first steering drive motor and the second steering drive motor, and the pair of moving sticks can move in the forward and backward directions according to the operating directions of the first steering drive motor and the second steering drive motor, each penetrating one of the pair of motor housings in the forward and backward directions.

[0020] In addition, screw gears are formed on the outer peripheral surfaces of the first stick and the second stick so that axial rotation driving forces from the first steering drive motor and the second steering drive motor, respectively, are transmitted, and the first stick and the second stick move while penetrating the motor housing in the front-rear direction so that the axial moving distances are the same or different depending on the operation times of the first steering drive motor and the second steering drive motor.

[0021] In addition, the antenna steering drive unit may further include a first drive gear and a second drive gear coupled to the motor shaft tips of the first steering drive motor and the second steering drive motor, respectively, and a pair of ring gears provided inside the motor housing and surrounding the outer circumferential surfaces of the first stick and the second stick, with internal gears formed on their inner circumferential surfaces that mesh with the screw gears of the first stick and the second stick, and with external gears formed on their outer circumferential surfaces that mesh with the first drive gear and the second drive gear.

[0022] In addition, when the operation times of the first steering drive motor and the second steering drive motor are the same, the upper end of the antenna device tilts in the front-to-rear direction relative to the support pole, based on the lower end of the antenna device, and when the operation times of the first steering drive motor and the second steering drive motor are different, the upper end of the antenna device tilts in the front-to-rear direction relative to the support pole, based on the lower end of the antenna device, and at the same time rotates in the left-to-right direction.

[0023] In addition, the mounting bracket portion includes a lower mounting bracket portion that mediates the connection between the lower end of the antenna equipment and the support pole, and an upper mounting bracket portion that mediates the connection between the upper end of the antenna equipment and the support pole, and the motor housing or the pair of motor housings are connectable to the upper mounting bracket portion.

[0024] The antenna device further includes an antenna lower bracket connected to a rear surface of a lower end of the antenna device and mediating the attachment between the lower end of the antenna device and the lower mounting bracket portion, and an antenna upper bracket connected to a rear surface of an upper end of the antenna device and mediating the attachment between the upper end of the antenna device and the front ends of the pair of moving sticks, and the antenna lower bracket is connected to the lower mounting bracket portion with a ball joint.

[0025] In addition, the lower mounting bracket part may be provided with a joint ball, and a ball support groove may be provided at a lower part of the antenna lower bracket so as to open downward, and the lower mounting bracket part may further include a ball separation prevention cap for preventing the joint ball from separating from the ball support groove when an upper end of the joint ball is received in the ball support groove.

[0026] In addition, in the case where a single steering drive motor is provided, the front ends of the pair of moving sticks are hinged to the antenna upper bracket so as to be freely rotatable relative to each other on the basis of the respective left and right horizontal axes.

[0027] In addition, when the steering drive motor is provided in a pair, the front ends of the pair of moving sticks are connected to the antenna upper bracket by a ball joint.

[0028] In addition, when a pair of steering drive motors are provided, the pair of motor housings are each connected to the mounting bracket portion by a ball joint. Effect of the Invention

[0029] According to an embodiment of the clamping device for an antenna according to the present invention, the following various effects can be achieved.

[0030] First, the antenna device can be installed close to the support pole so as to occupy a minimum space, which has the effect of reducing the space usage cost for the support pole.

[0031] Secondly, the space occupied by the antenna device on the support pole is minimized, while the steering rotation of the antenna device is remotely provided for efficient operation of beamforming, thereby making it easy to set the direction of the antenna.

[0032] Third, the use of an ultra-light steering drive motor has the effect of reducing the overall weight of the product. [Brief description of the drawings]

[0033] [Figure 1A] 1 is a front perspective view of an antenna clamping device according to an embodiment of the present invention before steering is rotated. FIG. [Figure 1B]FIG. 2 is a rear perspective view of the antenna clamping device according to the embodiment of the present invention before steering is rotated. [Diagram 2] FIG. 2 is a perspective view of the clamping device for an antenna according to the embodiment of the present invention after steering has been rotated. [Diagram 3] FIG. 2 is a side view of the clamping device for an antenna according to the embodiment of the present invention after the steering has been rotated. [Figure 4A] 1 is an exploded perspective view of a clamping device for an antenna according to an embodiment of the present invention; [Figure 4B] 1 is an exploded perspective view of a clamping device for an antenna according to an embodiment of the present invention; [Diagram 5] 2 is a perspective view showing an antenna steering driver in a clamping device for an antenna according to an embodiment of the present invention; FIG. [Figure 6A] 4 is a cross-sectional view showing a state in which a lower mounting bracket part is connected to a configuration of a clamping device for an antenna according to an embodiment of the present invention; FIG. [Figure 6B] 4 is a cutaway perspective view showing a state in which a clamping device for an antenna is connected to a lower mounting bracket according to an embodiment of the present invention; FIG. [Figure 7A] 4 is a cross-sectional view showing a state of connection to an upper mounting bracket part and a state of connection to an antenna steering driver part in the configuration of an antenna clamping device according to an embodiment of the present invention. [Figure 7B] 4 is a cutaway perspective view showing a state of connection to an upper mounting bracket part and a state of connection to an antenna steering driver part in a configuration of a clamping device for an antenna according to an embodiment of the present invention; FIG. [Figure 8] 2A and 2B are a front view and a cross-sectional view taken along line AA of the antenna clamping device according to the embodiment of the present invention after steering has been rotated. [Figure 9] 1A and 1B are plan views showing the state of an antenna clamping device according to an embodiment of the present invention before and after a steering wheel is rotated. [Figure 10]11A and 11B are perspective views showing the state of an antenna clamping device according to another embodiment of the present invention before and after a steering wheel is rotated. [Figure 11] 11 is a perspective view showing an antenna steering driver in a clamping device for an antenna according to another embodiment of the present invention; FIG. [Figure 12] 11A and 11B are plan views showing the state of an antenna clamping device according to another embodiment of the present invention before and after a steering wheel is rotated. [Figure 13] 13A and 13B are perspective views showing the state of an antenna clamping device according to still another embodiment of the present invention before and after a steering wheel is rotated. [Figure 14] 13 is a perspective view showing an antenna steering driver in a clamping device for an antenna according to still another embodiment of the present invention; FIG. [Figure 15] FIG. 14 is a side view of FIG. 13. [Figure 16] 13A and 13B are plan views showing the state of an antenna clamping device according to still another embodiment of the present invention before and after a steering wheel is rotated. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0034] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of a clamping device for an antenna according to the present invention will be described in detail with reference to the accompanying drawings.

[0035] In assigning reference numerals to components in each drawing, it should be noted that the same components are assigned the same numerals as much as possible even if they are displayed in different drawings. In addition, in describing the embodiments of the present invention, if it is determined that a detailed description of such known configurations or functions would hinder understanding of the embodiments of the present invention, the detailed description will be omitted.

[0036] In describing components of the embodiments of the present invention, terms such as 1, 2, A, B, (a), (b) and the like may be used. Such terms are merely used to distinguish the components from other components, and do not limit the essence, order, or procedure of the components. Furthermore, unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by a person of ordinary skill in the art to which the present invention belongs. Terms as defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning they have in the context of the relevant art, and should not be interpreted in an idealized or overly formal sense unless expressly defined in this application.

[0037] The clamping device 100, 1000, 2000 for an antenna according to the present invention includes a bracket portion 200, 300 for mediating the coupling of an antenna device A to a support pole 10 arranged long in the longitudinal direction.

[0038] Here, the mounting bracket parts 200, 300 may include an upper mounting bracket part 200 that mediates the connection between the upper end part of the antenna device A and the support pole 10, and a lower mounting bracket part 300 that mediates the connection between the lower end part of the antenna device A and the support pole 10.

[0039] Meanwhile, the clamping device for an antenna 100, 1000, 2000 according to the present invention may include an antenna steering driver 400, 1400, 2400 which is coupled to the upper mounting bracket part 200 and drives the rear of the antenna device A to be rotatable in the longitudinal direction of the support pole 10.

[0040] Here, the antenna steering driver 400, 1400, 2400 includes a pair of moving sticks 420, 1420, 2420 whose front ends are connected to the rear surface of the antenna device A, and the pair of moving sticks 420, 1420, 2420 can move the same distance or different distances to adjust the steering rotation including tilting or rotating the rear surface of the antenna device A relative to the longitudinal direction of the support pole 10.

[0041] Among the terms described below, "tilting rotation" means that antenna device A rotates to form a predetermined angle toward the front with respect to the longitudinal direction of the support pole 10, and among the terms described below, "rotating rotation" means that both left and right ends of antenna device A swing based on an arbitrary axis parallel to the support pole 10, and "steering rotation" may be a concept that includes all of the above-mentioned concepts of tilting rotation and rotating rotation, and embodiments of the present invention will be described in detail based on these terms.

[0042] The embodiments of the present invention are classified into one embodiment and another embodiment depending on whether the above-mentioned pair of moving sticks 420, 1420, 2420 are provided with a single steering drive motor 440, 1440 in the configuration of the antenna steering drive unit 400, 1400 as described below, and are involved in only one of the rotational drive forces for tilting rotation or rotating rotation (hereinafter referred to as "one embodiment", see Figures 1A to 9 described later), or whether they are involved in both (hereinafter referred to as "another embodiment", see Figures 10 to 12 described later), and are further classified into another embodiment depending on whether the above-mentioned pair of moving sticks 420, 1420 are provided with a single steering drive motor 440, 1440 in the configuration of the antenna steering drive unit 2400, and the pair of moving sticks 2420A, 2420B are involved in all of the rotational drive forces for tilting rotation or rotating rotation (see Figures 13 to 16 described later).

[0043] For reference, in the case of one embodiment 100 and another embodiment 1000 of the present invention, among the configurations of the antenna steering drive unit 400, 1400 described later, the steering drive motor 440, 1440 is provided as a single unit, and the pair of moving sticks 420, 1420 are configured to move the same distance by the single driving force of the steering drive motor 440, 1440, thereby realizing only tilting rotation of the antenna device A, whereas in the case of yet another embodiment 2000 of the present invention, among the configurations of the antenna steering drive unit 2400 described later, the steering drive motors 2440A, 2440B are provided as a pair, and each of the pair of moving sticks 2420A, 2420B is configured to move the same distance or different distances by each independent driving force of the pair of steering drive motors 2440A, 2440B, thereby realizing not only tilting rotation but also rotation rotation of the antenna device A.

[0044] Figures 1A and 1B are front and rear perspective views of an antenna clamping device according to one embodiment of the present invention before steering rotation, Figures 2 and 3 are perspective and side views of an antenna clamping device according to one embodiment of the present invention after steering rotation, and Figures 4A and 4B are exploded perspective views of an antenna clamping device according to one embodiment of the present invention.

[0045] In an antenna clamping device 100 according to one embodiment of the present invention, as shown in Figures 1A to 4B, an antenna steering drive unit 400 includes a pair of moving sticks 420, a steering drive motor 440 that drives one of the pair of moving sticks 420 (420A, hereinafter referred to as the "first stick") to rotate about an axis, and a motor housing 410 that incorporates the steering drive motor 440.

[0046] 1A and 1B, the pair of moving sticks 420 are disposed approximately perpendicular to each other in the front-rear direction with respect to the support pole 10. At this time, the pair of moving sticks 420 are disposed so as to sandwich the support pole 10 therebetween.

[0047] In addition, the first stick 420A, which is one of the pair of moving sticks 420, can rotate about an axis by receiving a rotational driving force from a steering drive motor 440, and the other of the pair of moving sticks 420 (440B, hereinafter referred to as the "second stick") moves in the forward / backward direction by the same distance when the first stick 420A moves in the forward / backward direction, and can play a role in guiding the tilting rotation relative to the longitudinal direction of the support pole 10 of antenna equipment A.

[0048] A screw gear 423 is formed on the outer circumferential surface of the first stick 420A of the pair of moving sticks 420 so as to receive a rotational driving force from the steering drive motor 440 through gear meshing. Locking caps 425A, 425B are provided on the rear ends of the pair of moving sticks 420A, 420B, respectively, and are locked to the rear surface of the motor housing 410, thereby limiting the moving distance of the pair of moving sticks 420A, 420B in the front-rear direction.

[0049] Such a pair of moving sticks 420 are capable of moving in the front-rear direction while penetrating the motor housing 410 in the front-rear direction.

[0050] At this time, the motor housing 410 can be connected to the upper mounting bracket part 200 among the mounting bracket parts 200 and 300 as shown in Figures 1A and 1B. In particular, the motor housing 410 is hinged to the upper mounting bracket part 200 so as not to interfere with the tilting rotation of the antenna device A caused by the through-movement of the pair of moving sticks 420.

[0051] More specifically, as shown in Figures 4A and 4B, the left and right ends of a front upper bracket 210, which will be described later, among the components of the upper mounting bracket part 200, are formed with hinge coupling holes 214 that are opened horizontally to the left and right, respectively, and the lower left and right ends of the motor housing 410 are provided with hinge coupling stages 413 having hinge through holes 414 that match the hinge coupling holes 214 of the front upper bracket 210, and the motor housing 410 is hinge-coupled to the upper mounting bracket part 200 by the operation of the coupling hinge 412 penetrating and fastening to the hinge through holes 414 and the hinge coupling holes 214.

[0052] In addition, a rotation bush 415 for guiding the smooth hinge rotation of the connecting hinge 412 may be interposed in the hinge through hole 414 .

[0053] Here, the first stick 420A of the pair of moving sticks 420 receives a rotational force directly from the steering drive motor 440 and rotates about its axis while being supported by the motor housing 410, moving in the forward and backward directions, tilting the upper end of the antenna device A connected to its front end based on its lower end, and the second stick 420B of the pair of moving sticks 420 moves in the forward and backward directions according to the operating direction of the steering drive motor 440 while penetrating the motor housing 410 a distance equal to the axial moving distance of the first stick 420A, thereby guiding the tilting rotation of the antenna device A.

[0054] FIG. 5 is an oblique view showing an antenna steering drive unit of an antenna clamping device according to one embodiment of the present invention, FIG. 6A and FIG. 6B are a cross-sectional view and a cut-away perspective view showing the manner in which the configuration of the antenna clamping device according to one embodiment of the present invention is connected to a lower mounting bracket unit, FIG. 7A and FIG. 7B are a cross-sectional view and a cut-away perspective view showing the manner in which the configuration of the antenna clamping device according to one embodiment of the present invention is connected to an upper mounting bracket unit and the manner in which the antenna steering drive unit is connected, FIG. 8 is a front view and a cross-sectional view along line AA of an antenna clamping device according to one embodiment of the present invention after steering rotation, and FIG. 9 is a plan view showing the appearance of an antenna clamping device according to one embodiment of the present invention before and after steering rotation.

[0055] As shown in Figures 5 to 9, the antenna steering drive unit 400 may further include a drive gear 441 connected to the end of the motor shaft of the steering drive motor 440, and a ring gear 430 provided inside the motor housing 410 and surrounding the outer circumferential surface of the first stick 420A, with an internal gear (not shown) formed on its inner circumferential surface to mesh with the screw gear 423 of the first stick 420A, and an external gear (not shown) formed on its outer circumferential surface to mesh with the drive gear 441.

[0056] As shown in Figures 4A and 4B, the motor housing 410 is divided into a front housing 410A and a rear housing 410B, and a space is formed between the front housing 410A and the rear housing 410B in which the above-mentioned drive gear 441 and ring gear 430 including the steering drive motor 440 are incorporated, and the first stick 420A and the second stick 420B are arranged to pass through in the front-to-rear direction, respectively.

[0057] Here, within the motor housing 410, there is interposed a rotation bearing portion 429 for supporting the axial rotation of the first stick 420A, and a moving guide tube 427 for guiding the movement of the second stick 420B in the front-rear direction is built in.

[0058] The motor housing 410 thus constructed is bolted to the upper mounting bracket part 200 which is connected to a relatively upper part of the outer circumferential surface of the support pole 10. Here, the motor housing 410 is bolted to the upper end of the upper mounting bracket part 200 so that the upper end can rotate in the front-rear direction with respect to the upper mounting bracket part 200. This is to facilitate the tilting rotation operation of the antenna device A.

[0059] As shown in Figures 1A to 4B, the upper mounting bracket part 200 includes a front upper bracket 210 that surrounds the outer peripheral surface of the front part of the support pole 10, and a rear upper bracket 220 that surrounds the outer peripheral surface of the rear part of the support pole 10, and the front upper bracket 210 and the rear upper bracket 220 are bolted together to firmly support the load of a heavy body including the antenna device A.

[0060] On the other hand, as shown in Figures 1A to 4B, the lower end of antenna device A is connected to the support pole 10 via a lower mounting bracket portion 300 so that the upper end of antenna device A can tilt and rotate in the forward and backward directions relative to the longitudinal direction of the support pole 10.

[0061] Here, as shown in Figures 1A to 4B, the lower mounting bracket part 300 includes a front lower bracket 310 surrounding the outer peripheral surface of the front part of the support pole 10 and a rear lower bracket 320 surrounding the outer peripheral surface of the rear part of the support pole 10, and the front lower bracket 310 and the rear lower bracket 320 are bolted to each other to firmly support the load of a heavy body including the antenna device A together with the upper mounting bracket part 200.

[0062] In particular, as shown in Figures 4A and 4B, the front lower bracket 310 of the lower mounting bracket part 300 further includes a support step 311 formed with a portion of its front end protruding toward the antenna device A, and the support step 311 is provided with a joint ball 335. The joint ball 335 is inserted into a ball support groove 535 formed in the rear protruding step 511 of the antenna lower bracket 510 (described later) provided on the lower end side of the antenna device A, thereby easily supporting the upper end of the antenna device A when it tilts forward and backward as well as when it rotates.

[0063] 5, each front end 426 of the pair of moving sticks 420 is coupled to an antenna upper bracket 520 provided at the upper end of the rear surface of the antenna device A. Here, each front end 426 of the pair of moving sticks 420 is hingedly coupled to be freely rotatable about a left-right horizontal axis via a pivot bolt 450, thereby allowing the antenna device A to tilt and rotate in the front-rear direction.

[0064] 6A, an antenna lower bracket 510 that mediates connection with the front lower bracket 310 of the lower mounting bracket part 300 is bolted to the lower end of the antenna device A. The antenna lower bracket 510 is ball-jointed by being fitted to a ball support groove 535 in a joint ball 335 provided on a support step 311 of the front lower bracket 310 of the lower mounting bracket part 300, a portion of which is connected to the outer circumferential surface of the support pole 10.

[0065] As shown in Figures 6A and 6B, the joint ball 335 can be manufactured separately from the front lower bracket 310, which is one of the components of the lower mounting bracket part 300, and can be connected to the upper surface of the support step 311 of the front lower bracket 310 by protruding upward, or can be formed integrally with the component corresponding to the support step 311 of the front lower bracket 310, which is one of the components of the lower mounting bracket part 300.

[0066] Therefore, as described above, the upper end of the rear surface of antenna device A is connected at two points by a pair of moving sticks 420, and the lower end of the rear surface is connected at one point to the lower mounting bracket portion 300, so that antenna device A is connected at three points overall.

[0067] Here, the antenna device A is installed by inserting the joint ball 335 fixed to the front lower bracket 310 into the ball support groove 535 of the rear protruding step 511 of the antenna lower bracket 510, which is formed to open downwards. Therefore, if the antenna device A is suddenly lifted during the installation process, the joint ball 335 may come off from the ball support groove 535 at any time.

[0068] In order to prevent the joint ball 335 from coming off the ball support groove 535, the clamping device 100 for an antenna according to an embodiment of the present invention may further include a ball coming off prevention cap 540 as shown in FIG. 6B.

[0069] The ball escape prevention cap 540 may include a fastening ring 541 having a plurality of fastening grooves spaced apart in an annular shape so that it can be fastened using a separate tool (not shown), and a screw fastening portion 543 having a screw shape (not shown) machined into its outer periphery so that it can be screwed to the inner surface of the ball support groove 535.

[0070] The ball separation prevention cap 540 is formed in a ring shape and has a hollow (not shown in the drawing) whose inner diameter is smaller than the maximum diameter of the ball part of the joint ball 335. Before the joint ball 335 is coupled to the support stage 311 of the front lower bracket 310, the ball part of the joint ball 335 is pre-assembled to be located at the upper part through the lower end of the joint ball 335, and then the ball part of the joint ball 335 is inserted into the ball support groove 535. Then, the screw fastening part 543 is screw-fastened to the inner surface of the ball support groove 535 by rotating the fastening ring 541 using another tool.

[0071] Here, since the maximum diameter of the ball portion of the joint ball 335 is larger than the hollow inner diameter of the ball separation prevention cap 540, it is possible to prevent the antenna device A from being lifted up arbitrarily.

[0072] As shown in Figures 5 to 9, when a single steering drive motor 440 is electrically driven to rotate, the clamping device for an antenna 100 according to one embodiment of the present invention configured as described above moves the first stick 420A a predetermined distance in the axial direction (i.e., forward and backward directions) via the drive gear 441 and the ring gear 430, thereby moving the upper end of the antenna device A in the forward and backward directions around the coupling portion of the lower end of the antenna device A to the lower mounting bracket portion 300, thereby tilting and rotating the antenna device A. In this case, the second stick 420B is also moved the same distance in the same direction as the first stick 420A, thereby guiding the tilting rotation of the antenna device A.

[0073] Here, the pair of moving sticks 420 are arranged so that their front and rear ends do not pass through the center of the support pole 10 while moving in the forward and backward directions, thereby enabling tilting rotation of the antenna device A while keeping it as close as possible to the support pole 10, which has the advantage of minimizing the installation space for the support pole 10.

[0074] FIG. 10 is an oblique view showing the state of an antenna clamping device according to another embodiment of the present invention before and after steering rotation, FIG. 11 is an oblique view showing the antenna steering drive unit of the configuration of an antenna clamping device according to another embodiment of the present invention, and FIG. 12 is a plan view showing the state of an antenna clamping device according to another embodiment of the present invention before and after steering rotation.

[0075] In the clamping device for an antenna 100 according to one embodiment of the present invention described with reference to Figures 1A to 9, only one of the pair of moving sticks 420 (first stick 420A) receives a rotational driving force from the steering drive motor 440, so it may be difficult to achieve stable tilting rotation of the antenna device A.

[0076] In order to solve the problems of the above-mentioned embodiment 100, the clamping device for an antenna 1000 according to another embodiment of the present invention is configured so that both of the pair of moving sticks 1420 simultaneously receive the rotational driving force of a steering driving motor 1440, which is provided as a single unit among the components of the antenna steering driving unit 1400, thereby stably tilting and rotating the antenna device A in the forward and backward directions.

[0077] To this end, a clamping device 1000 for an antenna according to another embodiment of the present invention may include a steering drive motor 1440 that drives a first stick 1420A and a second stick 1420B of a pair of moving sticks 1420 to rotate simultaneously about an axis, and a motor housing 1410 in which the steering drive motor 1440 is built in, as shown in Figures 10 to 12.

[0078] Here, as shown in FIG. 11, the steering drive motor 1440 is arranged long in the left-right direction inside the connecting portion 1415 of the motor housing 1410, and a motor shaft (not shown in the drawing) protrudes and extends to the left and right from both left and right ends of the steering drive motor 1440 toward the first stick 1420A and the second stick 1420B, respectively, and can transmit rotational drive force simultaneously to the first stick 1420A and the second stick 1420B via drive gears 1441A and 1441B, described below, that are respectively interposed on the motor shaft.

[0079] Meanwhile, as shown in Figures 10 to 12, the antenna steering drive unit 1400 may further include a first drive gear 1441A and a second drive gear 1441B coupled to a first motor shaft end and a second motor shaft end of the steering drive motor 1440, and a pair of ring gears 1431A, 1431B (i.e., a first ring gear 1431A and a second ring gear 1431B) provided inside the motor housing 1410 and surrounding the outer circumferential surfaces of the first stick 1420A and the second stick 1420B, with internal gears (not shown) formed on the inner circumferential surface that mesh with the screw gears (not shown in the drawing) of the first stick 1420A and the second stick 1420B, and with external gears (not shown) formed on the outer circumferential surface that mesh with the first drive gear 1441A and the second drive gear 1441B.

[0080] Here, the first drive gear 1441A and the second drive gear 1441B are provided by worm gears arranged perpendicular to the rotation axes of the first stick 1420A and the second stick 1420B, and the first ring gear 1431A and the second ring gear 1431B are provided by worm wheel gears that rotate coaxially with the rotation axes of the first stick 1420A and the second stick 1420B and mesh with the worm gears.

[0081] In addition, as shown in FIG. 11, the antenna steering driver 1400 may further include at least one support bearing 1450 arranged inside the motor housing 1410 and supporting the rotation of the first drive gear 1441A and the second drive gear 1441B formed by worm gears at the ends of the first and second motor shafts.

[0082] In another embodiment of the clamping device 1000 for an antenna according to the present invention having such a configuration, as shown in FIG. 12, when the steering drive motor 1440 is driven, a pair of moving sticks 1420A, 1420B can move in the forward and backward directions according to the operating direction of the steering drive motor 1440 while penetrating the motor housing 1410 in the forward and backward directions. In this case, it is preferable that the outer peripheral surfaces of the first stick 1420A and the second stick 1420B are all formed with screw gears (not shown in the drawing) as described above so that they can simultaneously receive the axial rotation driving force from the steering drive motor 1440.

[0083] Therefore, when the steering drive motor 1440 is driven, the pair of moving sticks 1420 are moved forward and backward at the same distance at the same time, so that the antenna device A can tilt and rotate forward and backward more stably.

[0084] FIG. 13 is an oblique view showing the state of an antenna clamping device according to yet another embodiment of the present invention before and after steering rotation, FIG. 14 is an oblique view showing the antenna steering drive unit of the configuration of an antenna clamping device according to yet another embodiment of the present invention, FIG. 15 is a side view of FIG. 13, and FIG. 16 is a plan view showing the state of an antenna clamping device according to yet another embodiment of the present invention before and after steering rotation.

[0085] In the clamping device for an antenna 100 according to one embodiment of the present invention described with reference to Figures 1A to 9, and the clamping device for an antenna 1000 according to another embodiment of the present invention described with reference to Figures 10 to 12, the antenna steering drive unit 400, 1400 is provided with a single steering drive motor 440, 1440, and either one or both of a pair of moving sticks 420, 1420 receive rotational drive force from the same steering drive motor 440, 1440. As a result, tilting rotation relative to the support pole 10 can be realized, but there is a problem in that it is difficult to realize rotating rotation.

[0086] In order to solve the problems of the above-mentioned one embodiment 100 and the other embodiment 1000, the clamping device for an antenna 2000 according to another embodiment of the present invention includes a pair of steering drive motors 2440 (see drawing reference numbers 2440A and 2440B in Figures 13 to 16) among the components of the antenna steering drive unit 2400, configured to transmit respective rotational drive forces to a pair of moving sticks 2420A, 2420B.

[0087] That is, in a clamping device 2000 for an antenna according to yet another embodiment of the present invention, the antenna steering drive unit 2400 may further include, as shown in Figures 13 to 16, a first steering drive motor 2440A that drives one of the pair of moving sticks 2420 (first stick 2420A) to rotate about an axis, a second steering drive motor 2440B that drives the other of the pair of moving sticks 2420 (second stick 2420B) to rotate about an axis, and a pair of motor housings 2410-1, 2410-2 that are respectively connected to the upper mounting bracket unit 200 and incorporate the first steering drive motor 2440A and the second steering drive motor 2440B, respectively.

[0088] Here, as in one embodiment 100 and the other embodiment 1000, the pair of moving sticks 2420 can move in the forward and backward directions depending on the operating directions of the first steering drive motor 2440A and the second steering drive motor 2440B, with each stick penetrating one of the pair of motor housings 2410 in the forward and backward directions.

[0089] In addition, in a clamping device 2000 for an antenna according to yet another embodiment of the present invention, screw gears are formed on the outer peripheral surfaces of the first stick 2420A and the second stick 2420B, similar to the other embodiment 1000 described above, so that the axial rotation driving force from the first steering drive motor 2440A and the second steering drive motor 2440B, respectively, can be transmitted.

[0090] Here, the first stick 2420A and the second stick 2420B are moved while penetrating the motor housing 2410 in the front-rear direction so that the axial moving distances thereof are the same or different depending on the operation times of the first steering drive motor 2440A and the second steering drive motor 2440B.

[0091] Meanwhile, in a clamping device 2000 for an antenna according to yet another embodiment of the present invention, the antenna steering drive unit 2400 may further include a first drive gear and a second drive gear (not shown) respectively coupled to the motor shaft ends of the first steering drive motor 2440A and the second steering drive motor 2440B, and a pair of ring gears 2430A, 2430B respectively provided inside the motor housings 2410-1, 2410-2 and arranged to surround the outer circumferential surfaces of the first stick 2420A and the second stick 2420B, with internal gears (not shown) formed on the inner circumferential surfaces to mesh with the screw gears of the first stick 2420A and the second stick 2420B, and with external gears (not shown) formed on the outer circumferential surfaces to mesh with the first drive gear and the second drive gear.

[0092] Of course, it goes without saying that the same structures 2430A, 2430B as the ring gears 430, 1430 provided inside the motor housings 410, 1410 of the embodiment 100 and the other embodiment 1000 of the present invention can also be interposed in the motor housings 2410-1, 2410-2.

[0093] According to antenna clamping device 2000 of yet another embodiment of the present invention having such a configuration, as shown in Figures 13 to 16, when the operating times of a pair of steering drive motors 2440A, 2440B are the same, the moving distances in the forward and backward directions of the first stick 2420A and the second stick 2420B are also the same, so that only tilting rotation of antenna device A can be realized, as in embodiment 100 and embodiment 1000 of the present invention. However, when the operating times of the pair of steering drive motors 2440A, 2440B are different, the moving distances in the forward and backward directions of the first stick 2420A and the second stick 2420B are different, so that antenna device A can simultaneously realize not only tilting rotation but also left-right rotation.

[0094] In particular, in the antenna clamping device 2000 according to yet another embodiment of the present invention, the rotational rotation of the antenna device A can be achieved by varying the operating times of a pair of steering drive motors 2440A, 2440B, and it goes without saying that the rotational rotation can also be achieved when a pair of moving sticks 2420A, 2420B are moved in different directions.

[0095] In order to realize the rotational movement of antenna device A in this manner, as shown in FIG. 14, a joint ball 2427 is provided at the front end of each of a pair of moving sticks 2420A, 2420B, and the joint ball 2427 is ball-jointed to a ball insertion groove 527 of a ball joint portion 525 provided on the antenna upper bracket 520, thereby enabling not only tilting rotation but also rotational rotation of antenna device A relative to the support pole 10.

[0096] In addition, the pair of motor housings 2410-1, 2410-2 are each provided with a joint ball 2450 at their lower ends, and the joint ball 2450 is ball-jointed to the ball joint portion 215 provided on the front upper bracket 210 of the upper mounting bracket portion 200 fixed to the outer circumferential surface of the support pole 10. As a result, even if the pair of moving sticks 2420A, 2420B rotate at different angles for rotational movement, the pair of motor housings 2410-1, 2410-2 can each rotate freely relative to the front upper bracket 210, thereby enabling rotational movement of antenna device A.

[0097] Thus, according to the antenna clamping device 2000 of yet another embodiment of the present invention, by driving a pair of steering drive motors 2440A, 2440B in the same or different manners, it has the advantage that tilting or rotating movement of the antenna equipment A in the longitudinal direction of the support pole 10 can be easily achieved by moving the pair of moving sticks 2420A, 2420B by the same or different moving distances.

[0098] Various embodiments of the clamping device for an antenna according to the present invention have been described in detail above with reference to the accompanying drawings. However, it goes without saying that the embodiments of the present invention are not limited to the above-mentioned embodiments, and various modifications and equivalent implementations are possible by those skilled in the art to which the present invention pertains. Therefore, the true scope of the present invention is defined by the following claims. [Industrial Applicability]

[0099] The present invention provides an antenna clamping device that can install antenna equipment on a support pole with a minimum distance, that can easily adjust the directionality of the antenna equipment including tilting and rotating, and that can be selected to suit the installation location of the antenna equipment, with a specification that allows only direction adjustment by tilting rotation, or a specification that allows direction adjustment by tilting rotation and rotation at the same time. [Explanation of symbols]

[0100] A: Antenna equipment 10: Support pole 100, 1000, 2000: Clamping device 200: Upper mounting bracket part 210: Front upper bracket 220: Rear upper bracket 300: Lower mounting bracket part 310: Front lower bracket 311: Support stage 320: Rear lower bracket 335: Joint ball 400, 1400, 2400: Antenna steering drive unit 410: Motor housing 410A: Front housing 410B: Rear housing 412: Joint hinge 413: Hinge connection stage 414: Hinge through hole 415: Rotating bush 420: Pair of moving sticks 420A: 1st walking stick 420B: 2nd walking stick 423: Screw gear 425A, 425B: Locking cap 427: Moving guide tube 429: Rotating bearing part 440: Steering drive motor 450: Rotating bolt 510: Antenna lower bracket 511: Rear protruding stage 520: Antenna upper bracket 535: Ball support groove 540: Ball separation prevention cap 541: Fastening ring 543: Screw fastening part

Claims

1. a mounting bracket portion for mediating the connection of the antenna device to a support pole arranged long in the longitudinal direction; an antenna steering drive unit coupled to the mounting bracket unit and configured to drive a rear surface of the antenna device so as to be rotatable in a steering manner with respect to a longitudinal direction of the support pole; the antenna steering driving unit includes a pair of moving sticks whose front ends are coupled to the rear surface of the antenna device, and the pair of moving sticks are moved at the same distance or at different distances across the support pole to tilt or rotate the rear surface of the antenna device relative to the longitudinal direction of the support pole; The antenna steering drive unit is a steering drive motor that drives one of the pair of moving sticks (hereinafter referred to as the "first stick") to rotate about an axis; a motor housing connected to the mounting bracket portion and housing the steering drive motor therein, The pair of moving sticks are movable in the front-rear direction according to the operating direction of the steering drive motor while passing through the motor housing in the front-rear direction.

2. A screw gear is formed on an outer circumferential surface of the first stick so that a shaft rotation driving force from the steering drive motor can be transmitted thereto. The clamping device for an antenna as described in claim 1, wherein the other of the pair of moving sticks (hereinafter referred to as the "second stick") is moved while penetrating the motor housing in the forward / backward direction a distance equal to the axial moving distance of the first stick.

3. The antenna steering drive unit is a drive gear coupled to an end of a motor shaft of the steering drive motor; 3. The clamping device for an antenna as described in claim 2, further comprising: a ring gear provided inside the motor housing and surrounding an outer circumferential surface of the first stick, the ring gear having an internal gear on its inner circumferential surface that meshes with the screw gear of the first stick, and an external gear on its outer circumferential surface that meshes with the drive gear.

4. A mounting bracket portion that mediates the connection of an antenna device to a support pole arranged long in the longitudinal direction; an antenna steering drive unit coupled to the mounting bracket unit and configured to drive a rear surface of the antenna device so as to be rotatable in a steering manner with respect to a longitudinal direction of the support pole; the antenna steering driving unit includes a pair of moving sticks whose front ends are coupled to the rear surface of the antenna device, and the pair of moving sticks are moved at the same distance or at different distances across the support pole to tilt or rotate the rear surface of the antenna device relative to the longitudinal direction of the support pole; The antenna steering drive unit is a steering drive motor for driving one of the pair of moving sticks (hereinafter referred to as the "first stick") and the other (hereinafter referred to as the "second stick") to rotate about an axis at the same time; a motor housing connected to the mounting bracket portion and housing the steering drive motor therein, The pair of moving sticks are movable in the front-rear direction according to the operating direction of the steering drive motor while passing through the motor housing in the front-rear direction.

5. a screw gear is formed on an outer circumferential surface of the first stick and the second stick so that a shaft rotation driving force from the steering drive motor is transmitted; 5. The clamping device for an antenna according to claim 4, wherein the second stick is moved while passing through the motor housing in a front-rear direction by a distance equal to an axial moving distance of the first stick.

6. the steering drive motor includes a first motor shaft and a second motor shaft extending inside the motor housing toward the first stick and the second stick, respectively; The antenna steering drive unit is a first drive gear and a second drive gear coupled to an end of the first motor shaft and an end of the second motor shaft of the steering drive motor, respectively; 6. The clamping device for an antenna as described in claim 5, further comprising a first ring gear and a second ring gear provided inside the motor housing and surrounding the outer circumferential surfaces of the first stick and the second stick, the inner circumferential surface being formed with an internal gear that meshes with the screw gears of the first stick and the second stick, and the outer circumferential surface being formed with an external gear that meshes with the first drive gear and the second drive gear.

7. The first and second drive gears are provided with worm gears arranged perpendicular to the rotation axes of the first and second walking sticks, 7. The clamping device for an antenna according to claim 6, wherein the first and second ring gears are provided by worm wheel gears which mesh with the worm gears and rotate coaxially with the axes of rotation of the first and second walking sticks.

8. The antenna steering drive unit is 8. The clamping device for an antenna as claimed in claim 7, further comprising at least one support bearing disposed inside the motor housing for rotatably supporting the first and second motor shaft ends and the first and second drive gears provided with the worm gear.

9. A mounting bracket portion that mediates the connection of an antenna device to a support pole arranged long in the longitudinal direction; an antenna steering drive unit coupled to the mounting bracket unit and configured to drive a rear surface of the antenna device so as to be rotatable in a steering manner with respect to a longitudinal direction of the support pole; the antenna steering driving unit includes a pair of moving sticks whose front ends are coupled to the rear surface of the antenna device, and the pair of moving sticks are moved at the same distance or at different distances across the support pole to tilt or rotate the rear surface of the antenna device relative to the longitudinal direction of the support pole; The antenna steering drive unit is a first steering drive motor for driving one of the pair of moving sticks (hereinafter referred to as the "first stick") to rotate about an axis; a second steering drive motor for driving the other one of the pair of moving sticks (hereinafter referred to as the "second stick") to rotate about an axis; a pair of motor housings respectively connected to the mounting bracket portions and housing the first steering drive motor and the second steering drive motor therein, The pair of moving sticks each penetrate one of the pair of motor housings in the forward / backward direction and are movable in the forward / backward direction depending on the operating directions of the first steering drive motor and the second steering drive motor.

10. a screw gear is formed on an outer circumferential surface of the first stick and the second stick so that a shaft rotation driving force is transmitted from the first steering drive motor and the second steering drive motor, respectively; 10. The clamping device for an antenna according to claim 9, wherein the first stick and the second stick are moved while penetrating the motor housing in a front-rear direction so that their axial moving distances are the same or different depending on the operation times of the first steering drive motor and the second steering drive motor.

11. The antenna steering drive unit is a first drive gear and a second drive gear coupled to ends of motor shafts of the first steering drive motor and the second steering drive motor, respectively; The clamping device for an antenna as described in claim 9, further comprising a pair of ring gears provided inside the motor housing and surrounding the outer circumferential surfaces of the first stick and the second stick, the inner circumferential surface being formed with internal gears that mesh with the screw gears of the first stick and the second stick, and the outer circumferential surface being formed with external gears that mesh with the first drive gear and the second drive gear.

12. When the first steering drive motor and the second steering drive motor are operated for the same time, an upper end of the antenna device is tilted and rotated in a front-rear direction with respect to a lower end of the antenna device relative to the support pole, 11. The antenna clamping device according to claim 10, wherein when the operation times of the first steering drive motor and the second steering drive motor are different, the upper end of the antenna device tilts in the forward / backward direction and simultaneously rotates in the left / right direction relative to the support pole, with the lower end of the antenna device as a reference.

13. The mounting bracket portion is a lower mounting bracket portion for mediating the connection between the lower end portion of the antenna device and the support pole; an upper mounting bracket portion for mediating the connection between the upper end portion of the antenna device and the support pole; 5. The clamping device for an antenna as claimed in claim 1 or 4, wherein said motor housing is connected to said upper mounting bracket portion.

14. The mounting bracket portion is a lower mounting bracket portion for mediating the connection between the lower end portion of the antenna device and the support pole; an upper mounting bracket portion for mediating the connection between the upper end portion of the antenna device and the support pole; 10. The antenna clamping device of claim 9, wherein said pair of motor housings are coupled to said upper mounting bracket portion.

15. an antenna lower bracket coupled to a rear surface of a lower end of the antenna device and mediating attachment between the lower end of the antenna device and the lower mounting bracket part; an antenna upper bracket coupled to a rear surface of an upper end of the antenna device and mediating attachment between the upper end of the antenna device and the front ends of the pair of moving sticks; 14. The clamping device for an antenna of claim 13, wherein the antenna lower bracket is ball-jointed to the lower mounting bracket portion.

16. The lower mounting bracket portion is provided with a joint ball, and a ball support groove is provided at the lower portion of the antenna lower bracket so as to open downward, The lower mounting bracket portion is 16. The clamping device for an antenna according to claim 15, further comprising a ball escape prevention cap for preventing the joint ball from arbitrarily escaping from the ball support groove when an upper end of the joint ball is accommodated in the ball support groove.

17. An antenna clamping device as described in Claim 15, wherein the front ends of the pair of moving sticks are hingedly connected to the antenna upper bracket so as to be freely rotatable relative to each other based on their respective left and right horizontal axes.

18. An antenna lower bracket which is connected to a rear surface of a lower end of the antenna device and mediates attachment between the lower end of the antenna device and the lower mounting bracket part; an antenna upper bracket coupled to a rear surface of an upper end of the antenna device and mediating attachment between the upper end of the antenna device and the front ends of the pair of moving sticks; The antenna lower bracket is connected to the lower mounting bracket portion by a ball joint.

15. The clamping device for an antenna according to claim 14, wherein the front ends of the pair of moving sticks are ball-jointed to the antenna upper bracket.

19. An antenna clamping device as described in claim 14, wherein the pair of motor housings are each ball jointed to the mounting bracket portion.

Images