Clamping device for antennas

Abstract

The present invention relates to a clamping device for an antenna, and includes a rotating unit for rotating the antenna in a horizontal direction, a tilting unit for rotating the antenna in a vertical direction, and a rotation and vibration prevention unit for rotating at least one of the rotating unit and the tilting unit to adjust the direction of the antenna, and preventing the antenna from rotating freely after the direction of the antenna is adjusted. The rotation and vibration prevention unit includes a rotation motor, a worm gear rotated by the rotation motor, a shaft portion forming the rotation center of the at least one, and a worm gear gear provided on the outer circumferential surface of the shaft portion and rotated by the worm gear to rotate the at least one. Thus, the present invention provides the advantages of easily adjusting the direction of the antenna by controlling the rotation motor, and preventing the antenna from rotating freely after the direction is adjusted.

Description

TECHNICAL FIELD

[0001] The present application relates to a clamping apparatus for antenna, and more particularly, to a clamping apparatus for antenna, which can effectively arrange antennas in a densely arranged space, and can easily adjust the direction of the antennas. BACKGROUND

[0002] Generally, a wireless communication technology, for example, a multiple input multiple output (MIMO) technology is a technology for greatly increasing the data transmission capacity by using a plurality of antennas, and a spatial multiplexing method for transmitting different data through each of the transmission antennas in a transmitter and distinguishing the transmitted data through appropriate signal processing in a receiver.

[0003] Accordingly, as the number of transmission or reception antennas is simultaneously increased, the channel capacity is increased, so that more data can be transmitted. For example, if the number of antennas is increased to 10, about 10 times the channel capacity can be secured using the same frequency band compared to the existing single antenna system.

[0004] In the 4G long term evolution technology upgrade version (4G LTE-advanced), 8 or less antennas are used, and in the pre-5G stage, a product in which 64 or 128 antennas are installed is being developed, and it is expected that a base station device having a larger number of antennas will be used in 5G, which is called massive multiple input multiple output (Massive MIMO) technology. The current cell operation is two-dimensional (2-Dimension), and if the massive multiple input multiple output technology is introduced, three-dimensional beamforming (3D-Beamforming) can be performed, and thus, it is also called full dimensional multiple input multiple output (FD-MIMO) (Full Dimension).

[0005] In the massive multiple input multiple output technology, as the number of antennas (ANT) increases, the number of transmitters and filters based thereon also increases. Even so, due to the lease component or spatial constraints of the installation site, it is necessary to make the radio frequency (RF) components (antenna (Antenna) / filter (Filter) / power amplifier (Power Amplifier) / transceiver (Transceiver etc.) and the like) small and light, and reduce costs, and the massive multiple input multiple output requires high output in order to expand the coverage, and the power consumption and heat generation caused by such high output become a negative factor in reducing the weight and size.

[0006] In particular, when a multiple-input multiple-output antenna in which modules implementing radio frequency devices and digital devices are combined in a stacked structure is provided in a limited space, in order to maximize the ease of installation or space utilization, the necessity of compactness and miniaturization related to a plurality of layers constituting the multiple-input multiple-output antenna is highlighted, and the necessity of free direction adjustment of an antenna device installed in one support pole is strongly required.

[0007] Meanwhile, a technical structure is required in which an antenna installed in a support pole maintains a predetermined direction according to an external environment. SUMMARY

[0008] TECHNICAL PROBLEM

[0009] The technical problem of the present application is to provide an antenna clamping device that can increase installation freedom and improve workability when an antenna is installed in a support pole in which the space is limited.

[0010] Another technical problem of the present application is to provide an antenna clamping device that can prevent an antenna installed in a support pole from being randomly tilted and rotated, thereby maintaining the antenna in a predetermined direction.

[0011] The technical problem of the present application is not limited to the above-mentioned technical problem, and other technical problems not mentioned can be clearly understood by those skilled in the art to which the present application pertains from the following description.

[0012] TECHNICAL SOLUTION

[0013] To solve the above problem, the antenna clamping device of the present application includes a rotation unit for rotating an antenna in a horizontal direction, a tilting unit for rotating the antenna in a vertical direction, and a rotation and vibration prevention part that rotates at least one of the rotation unit and the tilting unit to adjust the direction of the antenna and prevents the antenna from being randomly rotated after adjusting the direction of the antenna, the rotation and vibration prevention part including a rotation motor, a worm gear that is rotated by the rotation motor, a shaft part that forms a rotation center of the at least one, and a worm gear gear that is provided on an outer circumferential surface of the shaft part and is rotated by the worm gear to rotate the at least one.

[0014] The worm gear teeth of the worm gear gear can be formed in a spur gear tooth shape.

[0015] The worm gear teeth of the worm gear gear can be formed in a helical gear tooth shape.

[0016] The rotation and vibration preventing part can further include an inner side damping idle gear. The inner side damping idle gear can be disposed between the worm gear and the worm wheel gear, one side of which is engaged with the worm gear teeth of the worm gear and the other side of which is engaged with the worm wheel gear teeth of the worm wheel gear.

[0017] The inner side damping idle gear can be formed in a spur gear shape.

[0018] The inner side damping idle gear can be formed in a worm wheel shape which can be engaged with the worm wheel gear teeth.

[0019] The rotation and vibration preventing part can further include an outer side damping idle gear. The worm gear can be disposed between the outer side damping idle gear and the worm wheel gear, one side of which is engaged with the gear teeth of the outer side damping idle gear and the other side of which is engaged with the worm wheel gear teeth of the worm wheel gear.

[0020] The outer side damping idle gear can be formed in a spur gear shape.

[0021] The outer side damping idle gear can be formed in a worm wheel shape which can be engaged with the worm wheel gear teeth.

[0022] The rotation and vibration preventing part can further include a brake gear formed at an end of the shaft part and an additional damping idle gear engaged with the brake gear.

[0023] The rotation and vibration preventing part can further include a motor bracket rotatably supporting the worm gear and a plate spring damper disposed at one side of the motor bracket to elastically support the motor bracket toward the worm wheel gear side.

[0024] Details of other embodiments are contained in the detailed description and the accompanying drawings.

[0025] Effects of the Invention

[0026] According to an embodiment of the antenna clamping device of the present invention, the present invention can achieve various effects as follows.

[0027] First, the direction of the antenna can be automatically adjusted by the tilting unit and the rotating unit, so that the on-site workability of the worker is improved.

[0028] Second, the direction of the fixed antenna can be prevented from being tilted or rotated at will by the tilting unit and the rotating unit, so that the signal transmission reliability of the antenna can be maintained.

[0029] The effects of the present invention are not limited to the above-mentioned effects, and other effects not mentioned can be clearly understood by those skilled in the art to which the present invention pertains from the recitation of the scope of the invention. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 A perspective view showing a state in which the antenna clamp device of an embodiment of the present application is provided to a guyed tower.

[0031] Figure 2 A perspective view showing a state in which the antenna clamp device of an embodiment of the present application is provided to a guyed tower. Figure 1 A perspective view showing a state in which the antenna clamp device of an embodiment of the present application is provided to a guyed tower.

[0032] Figure 3a A perspective view showing a state in which the antenna clamp device of an embodiment of the present application is provided to a guyed tower. Figure 3b A perspective view showing a state in which the antenna clamp device of an embodiment of the present application is provided to a guyed tower.

[0033] Figure 4a A perspective view showing a state in which the antenna clamp device of an embodiment of the present application is provided to a guyed tower. Figure 4b A perspective view showing a state in which the antenna clamp device of an embodiment of the present application is provided to a guyed tower.

[0034] Figure 5a A perspective view showing a state in which the antenna clamp device of an embodiment of the present application is provided to a guyed tower. Figure 5b A perspective view showing a state in which the antenna clamp device of an embodiment of the present application is provided to a guyed tower.

[0035] Figure 6 A perspective view showing a state in which the antenna clamp device of an embodiment of the present application is provided to a guyed tower.

[0036] Figures 7a to 7c A perspective view showing a state in which the antenna clamp device of an embodiment of the present application is provided to a guyed tower. Figure 2 A perspective view showing a state in which the antenna clamp device of an embodiment of the present application is provided to a guyed tower.

[0037] Figure 8 A perspective view showing a state in which the antenna clamp device of an embodiment of the present application is provided to a guyed tower.

[0038] Figure 9 A perspective view showing a state in which the antenna clamp device of an embodiment of the present application is provided to a guyed tower. Figure 8 A perspective view showing a state in which the antenna clamp device of an embodiment of the present application is provided to a guyed tower.

[0039] Figures 10 to 14 A perspective view showing a state in which the antenna clamp device of an embodiment of the present application is provided to a guyed tower. DETAILED DESCRIPTION

[0040] Hereinafter, an embodiment of the antenna clamp device of the present application will be described in detail with reference to the drawings. In assigning reference numerals to structural elements of each drawing, the same reference numerals are assigned to the same structural elements even if they appear in different drawings. Also, in describing the present application, if it is judged that a detailed description of a related known structure or function can hinder the understanding of the embodiment of the present application, a detailed description thereof will be omitted.

[0041] In describing the structural elements of embodiments of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are used only to distinguish one structural element from others, and the nature, order, or sequence of the structural elements are not limited by their terminology. Furthermore, unless otherwise defined, all terms used herein, including technical and scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. Terms whose meanings are defined in commonly used dictionaries are consistent with their meanings within the context of the relevant art and should not be construed as having an ideal or overly formal meaning unless explicitly defined in this application.

[0042] Figure 1 To show a perspective view of an antenna clamping device according to an embodiment of the present invention mounted on a mast, Figure 2 To show Figure 1 An exploded 3D view excluding the antenna. Figure 3a and Figure 3b This is an exploded perspective view of the shared connecting unit, separated from the arm unit, in the structure of an antenna clamping device according to an embodiment of the present invention. Figure 4a and Figure 4b This is an exploded perspective view of the rotating unit, separated from the common connecting unit, in the structure of an antenna clamping device according to an embodiment of the present invention. Figure 5a and Figure 5b An exploded perspective view showing the tilting unit separated from the rotating unit in the structure of an antenna clamping device according to an embodiment of the present invention.

[0043] Reference Figures 1 to 5b An embodiment of the antenna clamping device of the present invention may include: an arm unit 100, which is coupled to a support pole 1; a common coupling unit 200, which is coupled to the arm unit 100; a rotating unit 300, which is coupled to the common coupling unit 200 in a manner rotatable in the horizontal direction; and a tilting unit 400, which is coupled to the rotating unit 300 in a manner rotatable in the vertical direction, and is coupled to the antenna A. Wherein, rotation in the horizontal direction can have the same meaning as rotational rotation, and rotation in the vertical direction can have the same meaning as tilting rotation. That is, rotation in the horizontal direction and rotational rotation can both be rotations centered on a vertical axis. Furthermore, rotation in the vertical direction and tilting rotation can both be rotations centered on a horizontal axis.

[0044] The arm unit 100 can act as a medium for the connection between the common connecting unit 200 and the pole 1.

[0045] Reference Figure 2The arm unit 100 can include an arm body 110 extending a predetermined length in a horizontal direction from the side of the boom 1, a fixed bracket 120 formed integrally with the other end of the arm body 110 corresponding to the side of the boom 1 to be closely coupled to the outer circumferential surface of the boom 1, and a separated bracket 130 to be closely coupled to the other side of the outer circumferential surface of the boom 1 by being coupled to the fixed bracket 120 through a plurality of fixing long bolts 140. The ends of the plurality of fixing long bolts 140 can be nut-coupled to each other through fixing nuts 150 provided in the separated bracket 130.

[0046] A plurality of reinforcing ribs 115 for reinforcing the rigidity of the coupling portion of the arm body 110 and the fixed bracket 120 can be formed integrally at the other end of the arm body 110. The arm body 110 and the fixed bracket 120 can be formed integrally of a metal material. However, the arm body 110 and the fixed bracket 120 are not necessarily integrally injection-molded, but can be integrally coupled to each other by a welding coupling method or the like after the arm body 110 and the fixed bracket 120 are separately manufactured.

[0047] On the other hand, the arm body 110 and the fixed bracket 120 can be integrally manufactured in a mold of a metal material, and the separated bracket 130 can be manufactured in a mold different from the mold for manufacturing the arm body 110 and the fixed bracket 120.

[0048] As described above, the arm unit 100 can be coupled in a manner that the fixed bracket 120 and the separated bracket 130 are screw-coupled to each other, and extend a predetermined length in a horizontal direction orthogonal to the length direction of the boom 1, so that the antenna A is disposed at a position spaced apart from the boom 1 by a predetermined distance.

[0049] In the arm unit 100, the common coupling unit 200 can be first coupled to the front end of the arm body 110, thereby playing a medium role in coupling the clamp portion 60 to be described later, which is manufactured in a plurality of ways. However, according to an embodiment, the rotating unit 300 can be directly disposed at the front end of the arm body 110 without the medium role of the common coupling unit 200 (see Figure 8 and Figure 9 ).

[0050] Hereinafter, a description will be given on the assumption that the rotating unit 300 is disposed at the front end of the arm body 110 of the arm unit 100 with the common coupling unit 200 as a medium. The common coupling unit 200 has a substantially similar shape to the rotating unit 300, and is fixed to the front end of the arm body 110 or selectively has a structure capable of rotating in the same manner as the rotating unit 300 in the case where the antenna A needs to be further rotated in the horizontal direction.

[0051] Referring to Figure 3a and Figure 3bThe common coupling unit 200 can include a common one-end coupling portion 201 providing a coupling site of the one-end coupling rotating unit 300, and a common other-end coupling portion 202 extending from the upper end of the common one-end coupling portion 201 to the other side by a predetermined length, and a coupling shaft 210, which is a coupling element, extending downward by a predetermined length.

[0052] The rotation angle adjusting portion 230 of the structure of the rotation and vibration preventing portion 230, 330 to be described later can be built in the inside of the common one-end coupling portion 201 of the common coupling unit 200. In this regard, a more detailed description will be made below.

[0053] The fixed shaft hole block 190 for the coupling of the common coupling unit 200 can be provided at the front end portion of the arm body 110 of the arm unit 100.

[0054] In more detail, the arm body 110 can have a hollow quadrangular tube shape, and the front end portion of the arm body 110 can be opened to one side direction and the upper end and the lower end can be formed in a semicircular protrusion.

[0055] The fixed shaft hole block 190 can be inserted into the opened front end portion of the arm body 110, and the fixed shaft hole block 190 can have a shape corresponding to the inside space 160 of the hollow front end portion of the arm body 110. The fixed shaft hole block 190 can correspond to the inside space 160 of the hollow front end portion of the arm body 110, and the outer shape of the one-end side can have a cylindrical shape having a horizontal cross section of a substantially semicircular shape, and the outer shape of the other-end side can have a quadrangular block shape.

[0056] The shaft insertion hole 191 for the insertion of the coupling shaft 210 of the common coupling unit 200 from the upper portion to the lower portion can be provided in the fixed shaft hole block 190. Also, the shaft through hole 165 for the coupling shaft 210 of the common coupling unit 200 to pass through and be inserted into the shaft insertion hole 191 provided in the fixed shaft hole block 190 can be formed at the upper end portion of the arm body 110.

[0057] The coupling of the coupling shaft 210 to the shaft insertion hole 191 can be one of a forced snap-in coupling, a screw coupling, and a bolt coupling. In the antenna clamping device according to an embodiment of the present application, a structure in which the coupling shaft 210 of the common coupling unit 200 is inserted from the upper portion to the lower portion of the shaft insertion hole 191 of the fixed shaft hole block 190 and is coupled, and then is firmly fixed by a fixing bolt not shown is adopted.

[0058] On the other hand, the braking portion (not shown) for forming a predetermined frictional force between the arm body 110 of the arm unit 100 and the common coupling unit 200 can be provided at the front end portion of the arm body 110 of the arm unit 100.

[0059] The above-mentioned braking portion can include: upper braking washers 170a, 175a provided on the upper side in the front end portion of the arm unit 100 to form a frictional force with the upper engaging surface of the common engaging unit 200; and lower braking washers 170b, 175b provided on the lower side in the front end portion of the arm body 110 of the arm unit 100 to form a frictional force with the lower engaging surface of the common engaging unit 200.

[0060] The upper braking washers 170a, 175a and the lower braking washers 170b, 175b can include: fixed plate portions 170a, 170b fixed on the upper side and the lower side of the front end portion of the arm body 110 of the arm unit 100 to provide a frictional surface; and rotating plate portions 175a, 175b fixed on the upper side or the lower side of the common engaging unit 200 to rotate and form a frictional force with the fixed plate portions 170a, 170b.

[0061] The fixed plate portions 170a, 170b can include: an upper fixed plate portion 170a fixed on the upper side of the front end portion of the arm body 110 of the arm unit 100; and a lower fixed plate portion 170b fixed on the lower side of the front end portion of the arm body 110 of the arm unit 100.

[0062] The lower braking washers 170b, 175b can be provided with a washer setting bracket 180 formed to extend from the lower end portion of the common one end engaging portion 201 of the common engaging unit 200 to the other end portion side and to extend to the lower side surface of the front end portion of the arm body 110.

[0063] The rotating plate portions 175a, 175b can include: an upper rotating plate portion 175a fixed on the lower surface of the common other end engaging portion 202 of the common engaging unit 200 to rotate and form a frictional force with the upper fixed plate portion 170a; and a rotating plate portion 175b fixed on the upper surface of the washer setting bracket 180 to rotate and form a frictional force with the lower fixed plate portion 170b.

[0064] The above-mentioned lower rotating plate portion 175b is formed on the upper surface of the washer setting bracket 180, and the lower fixed plate portion 170b is fixed on the lower side of the front end portion of the arm body 110 of the arm unit 100, and as described above, a predetermined frictional force is formed when the common engaging unit 200 is further rotated to rotate.

[0065] On the other hand, the clamping portion 60 can function as a medium for providing the antenna A on the arm unit 100, and can be rotated or inclined to be provided in a direction in which the antenna A can be provided.

[0066] In more detail, the clamping portion 60 can include a common coupling unit 200 coupled to the front end of the arm body 110 of the arm unit 100, a rotation unit 300 coupled to the front end of the common coupling unit 200, and a tilting unit 400 coupled to the rotation unit 300.

[0067] As shown in Figure 1 , the antenna A is detachably provided in the tilting unit 400.

[0068] As shown in Figure 1 , a bracket plate 405 can be attached to the front surface of the tilting unit 400, and a hook fastening bracket (not shown) is provided to the rear surface of the antenna A coupled to the tilting unit 400, spaced apart from the rear surface of the antenna A.

[0069] A worker who performs the installation of the antenna A can temporarily fix the hook fastening bracket to the rear surface of the antenna A, press-join the hook fastening bracket from the upper portion to the lower portion in the installation groove provided in the tilting unit 400, and firmly assemble the hook fastening bracket by using a hook fixing screw (not shown), and thus, the worker can provide the advantage of improved assemblability without a plurality of installation workers.

[0070] Referring to Figure 4a and Figure 4b , the rotation unit 300 can include a rotation one-end coupling portion 301 provided at a coupling position of one end of the tilting unit 400, and a rotation other-end coupling portion 302 extending to the other side from the upper end of the rotation one-end coupling portion 301 by a predetermined length, and a rotation shaft fixing portion 310 extending downward by a predetermined length as a rotation shaft of the rotation unit 300.

[0071] The coupling method of the shaft hole 231' (see Figure 6 ) of the rotation shaft portion 231 of the common one-end coupling portion 201 of the common coupling unit 200 provided in the rotation shaft fixing portion 310 follows the coupling method of the shaft insertion hole 191 of the fixing shaft hole block 190 of the coupling shaft 210.

[0072] On the other hand, the tilting angle adjustment portion 330, which is one of the structures of the rotation and vibration prevention portion 230, 330 to be described later, can be built in the inside of the rotation one-end coupling portion 301. In this regard, a more detailed description will be given below.

[0073] Referring to Figure 5a and Figure 5b , the tilting unit 400 can include a tilting one-end coupling portion 401 to which the antenna A is detachably coupled at one end, and a tilting other-end coupling portion 402 extending to the other end from both left and right ends of the tilting one-end coupling portion 401 to be coupled to both left and right side walls of the rotation one-end coupling portion 301 of the rotation unit 300 in a tiltable manner.

[0074] An inclined shaft fixing part 410 is formed in one of the inclined end joints 402 formed on the left and right sides respectively, which can be inserted into the inclined angle joint hole 365 provided in the rotating end joint 301.

[0075] For the shaft hole 331' of the inclined shaft portion 331 provided in the rotating end joint 301 of the inclined shaft fixing portion 410 (refer to...) Figure 6 The connection method follows the connection method of the shaft insertion hole 191 of the fixed shaft hole block 190 of the aforementioned connecting shaft 210.

[0076] The tilting shaft fixing part 410 may be recessed from the outside to the inside of the tilting end joint part 402, so as to be fixed to the tilting shaft part 331 by inserting and tightening a fixing bolt (not shown) from the outside to the inside. The tilting cover 403 for fastening the fixing bolt by snapping it in from the outside may be attached to the outer side of the tilting shaft fixing part 410.

[0077] The rotation axis fixing part 310 formed in the rotation unit 300 can be the center of rotation for horizontal rotation of the arm body 110 of the common connecting unit 200 or the arm unit 100. At the same time, the tilt axis fixing part 410 formed in the tilting unit 400 can be the center of tilt rotation for vertical rotation of the rotation unit 300.

[0078] As described above, for the clamping part 60, relative to the common connecting unit 200, the rotating unit 300 can be connected in a manner that rotates in the horizontal direction with the rotating axis fixing part 310 as the center, thereby allowing it to rotate in the horizontal direction of the antenna A. The tilting unit 400 is connected in a manner that rotates in the upper limit direction with the tilting axis fixing part 410 as the center, thereby allowing it to rotate in the vertical direction of the antenna A.

[0079] Figure 6 This is an exploded perspective view of the tilting unit, rotating unit, and common connecting unit in the structure of an antenna clamping device according to an embodiment of the present invention.

[0080] Reference Figure 6 The clamping part 60 may further include rotation and vibration prevention parts 230 and 330. The rotation and vibration prevention parts 230 and 330 may be disposed inside the rotating end joint 301 of the rotating unit 300 and the common end joint 201 of the common joint unit 200, allowing the tilting unit 400 and the rotating unit 300 to tilt and rotate, respectively. Furthermore, the rotation and vibration prevention parts 230 and 330 prevent the tilting unit 400 and the rotating unit 300 from rotating arbitrarily in a fixed position due to rotation.

[0081] The rotation and vibration prevention part 230, 330 can include a rotation angle adjustment part 230 disposed inside the common one end coupling part 201 of the common coupling unit 200 and an inclination angle adjustment part 330 disposed inside the rotation one end coupling part 301 of the rotation unit 300.

[0082] The rotation angle adjustment part 230 can rotate the rotation unit 300, and can prevent the rotation unit 300 from being randomly rotated at a fixed position due to the rotation.

[0083] The inclination angle adjustment part 330 can incline the inclination unit 400, and can prevent the inclination unit 400 from being randomly rotated at a fixed position due to the inclination.

[0084] The rotation angle adjustment part 230 can include a rotation shaft part 231 vertically formed in an up and down direction inside a coupling unit housing 220 forming the common one end coupling part 201 and forming an internal space, a worm gear 232 integrally formed on an outer circumferential surface of the rotation shaft part 231 and forming worm gear teeth on the outer circumferential surface, and a worm wheel 233 configured to be orthogonal to the rotation shaft part 231 by forming worm wheel teeth 234 engaged with the worm gear teeth of the worm gear 232.

[0085] The worm wheel 233 can be driven to rotate by a rotation motor 235 disposed inside the coupling unit housing 220 in an electrically driven manner. The rotation motor 235 can be firmly fixed inside the coupling unit housing 220 using a motor bracket 236 as a medium.

[0086] An axle hole 231' can be formed at an end of the rotation shaft part 231, and the axle hole 231' can be exposed to the outside through a rotation shaft through hole 265 formed vertically through the upper portion of the coupling unit housing 220. The axle hole 231' of the rotation shaft part 231 exposed through the rotation shaft through hole 265 can be coupled to a rotation shaft fixing part 310 of the rotation unit 300.

[0087] On the other hand, the lower side of the coupling unit housing 220 can be open, and the open lower side of the coupling unit housing 220 can be covered by a coupling unit cover 207. After a worker separates the coupling unit cover 207 from the coupling unit housing 220, maintenance of each structure of the rotation angle adjustment part 230 built inside the coupling unit housing 220 can be performed.

[0088] The coupling unit cover 207 can support the rotation of the lower end facing the upper end of the axle hole 231' in which the rotation shaft part 231 is formed, and can be separately provided with the washer setting bracket 180 described above to be coupled or can be integrally formed.

[0089] The inclination angle adjusting part 330 can include an inclination shaft part 331 formed horizontally along a horizontal direction inside the rotation cover 320 forming the rotation one-end coupling part 301 and forming an internal space, a worm gear 332 formed integrally on an outer circumferential surface of the inclination shaft part 331 and forming worm gear teeth 332 on the outer circumferential surface, and a worm wheel 333 formed with worm wheel teeth 334 engaged with the worm gear teeth 332 of the worm gear 332 and disposed orthogonally with respect to the rotation shaft part 231.

[0090] The worm wheels 233, 333 can include a rotation worm wheel 233 formed in the rotation angle adjusting part 230 and an inclination worm wheel 333 formed in the inclination angle adjusting part 330.

[0091] The worm gears 232, 332 can include a rotation worm gear 232 formed in the rotation angle adjusting part 230 and an inclination worm gear 332 formed in the inclination angle adjusting part 330.

[0092] The worm wheel 333 can be driven to rotate by a rotation motor 335 provided inside the rotation cover 320 in an electrically driven manner. The rotation motor 335 can be firmly fixed inside the rotation cover 320 with a motor bracket 336 as a medium.

[0093] The rotation motors 235, 335 can include a rotation rotation motor 235 provided inside the common coupling unit 200 to rotate the rotation unit 300 in a horizontal direction and an inclination rotation motor 335 provided inside the rotation unit 300 to rotate the inclination unit 400 in an up-and-down direction.

[0094] An axle hole 331' can be formed at an end of the inclination shaft part 331, the axle hole 331' can be exposed to the outside through an inclination shaft through-hole 365 formed through left and right sides of the rotation cover 320, and the axle hole 331' of the inclination shaft part 331 exposed through the inclination shaft through-hole 365 can be coupled to an inclination shaft fixing part 410 of the inclination unit 400.

[0095] On the other hand, one side of the rotation cover 320 can be open, and the open side of the rotation cover 320 can be covered by a rotation cover 307. After a worker separates the rotation cover 307 from the rotation cover 320, maintenance of each structure of the inclination angle adjusting part 330 built inside the rotation cover 320 can be performed.

[0096] The rotation cover 307 can support rotation of the other end facing the one end of the axle hole 331' of the inclination shaft part 331.

[0097] As described above, the rotation and vibration preventing portions 230 and 330 rotate the rotation unit 300 and the tilting unit 400 to automatically adjust the direction of the antenna A, and prevent vibration in a manner that prevents the direction of the antenna A from being changed at will due to external environments in a state in which the direction of the antenna A is fixed.

[0098] Figures 7a to 7c is a cross-sectional view taken along the A-A, B-B, and C-C lines of Figure 2 .

[0099] Referring to Figures 7a to 7c , in the structure of the rotation and vibration preventing portions 230 and 330, the tilting shaft portion 331 of the tilting angle adjusting portion 330 can be horizontally formed in the horizontal direction from the inside of the rotation cover 320. Also, in the structure of the rotation and vibration preventing portions 230 and 330, the rotation shaft portion 231 of the rotation angle adjusting portion 230 can be vertically formed in the vertical direction from the inside of the common coupling cover 220. Also, the coupling shaft 210 of the common coupling unit 200 can be vertically disposed in the vertical direction in the fixed shaft hole block 190 in which the shaft insertion hole 191 formed in the inside of the front end of the arm body 110 of the arm unit 100 in the vertical direction is formed.

[0100] In which, as shown in Figure 7b , one end portion of the tilting shaft portion 331 of the tilting angle adjusting portion 330 is coupled in a manner of surrounding the protruding front end portion of the tilting shaft fixing portion 410, and the other end portion is coupled through the shaft portion fixing hole 308 formed through the rotation cover 307, and each of the two end portions can be sealed by the one side seal 309a and the other side seal 309b.

[0101] Also, as shown in Figure 7c , one end portion of the rotation shaft portion 231 of the rotation angle adjusting portion 230 is coupled in a manner of surrounding the protruding front end portion of the rotation shaft fixing portion 310, and the other end portion is coupled through the shaft portion fixing hole 208 formed through the coupling unit cover 207, and each of the two end portions can be sealed by the one side seal 209a and the other side seal 209b, respectively.

[0102] Figure 8 is a perspective view of an antenna clamping device according to another embodiment of the present application, Figure 9 is an exploded perspective view of the antenna clamping device. Figure 8

[0103] Referring to Figure 8 and Figure 9 , it can be understood that the antenna clamping device according to another embodiment of the present application is different from the antenna clamping device according to the embodiment of the present application described with reference to Figures 1 to 7c .

[0104] That is, in the antenna clamping device according to another embodiment of the present application, the tilting angle adjusting portion 330 is coupled to the tilting shaft portion 331 of the arm unit 100 in a manner of surrounding the protruding front end portion of the tilting shaft fixing portion 410, and the rotation angle adjusting portion 230 is coupled to the rotation shaft portion 231 of the arm unit 100 in a manner of surrounding the protruding front end portion of the rotation shaft fixing portion 310. Figures 1 to 7c ​In the antenna clamping device of the embodiment of the present application, the rotating unit 300 is disposed in the arm unit 100 through the common coupling unit 200 in the structure of the clamping portion 60.

[0105] However, referring to Figure 8 and Figure 9 In the antenna clamping device of another embodiment of the present application, the rotating unit 300 is directly disposed in the fixed shaft hole block 190 formed in the front end portion of the arm body 110 of the arm unit 100 in the structure of the clamping portion 60 without the common coupling unit 200.

[0106] Also, in the antenna clamping device of another embodiment of the present application, the common coupling unit 200 is removed, and the rotating angle adjusting portion 230, which is built in the inside of the common coupling unit 200 to enable the rotating unit 300 to rotate in the horizontal direction, can also be removed. That is, in the rotating angle adjusting portion 230 and the inclination angle adjusting portion 330 of the above-mentioned embodiment, only the embodiment of the inclination angle adjusting portion 330 built in the rotating unit 300 can be defined as another embodiment of the present application.

[0107] Further, the remaining structures are the same as those of the above-mentioned embodiment of the present application and the coupling relationship thereof, and thus detailed descriptions thereof will be omitted.

[0108] On the other hand, the antenna clamping device of another embodiment of the present application is described as a structure in which the common coupling unit 200 is removed from the antenna clamping device of the above-mentioned embodiment of the present application, and the rotating unit 300 can also be removed from the antenna clamping device of the above-mentioned embodiment of the present application without removing the common coupling unit 200. In this case, the inclination unit 400 is coupled to the common coupling unit 200 in a manner rotatable in the horizontal direction.

[0109] That is, in the antenna clamping device of the embodiment of the present application, the rotation and vibration preventing portion 230, 330 is constituted by at least one of the rotating angle adjusting portion 230 and the inclination angle adjusting portion 330, at least one of the rotating unit 300 and the inclination unit 400 is rotated to adjust the direction of the antenna A, and after the direction of the antenna A is adjusted, the antenna A can be prevented from being rotated arbitrarily.

[0110] In the case where the rotation and vibration preventing portion 230, 330 is configured by at least one of the rotation angle adjusting portion 230 and the inclination angle adjusting portion 330, the rotation motor 235, 335 can be configured by at least one of the rotation rotation motor 235 and the inclination rotation motor 335, the worm wheel 233, 333 rotated by the rotation motor 235, 335 can be configured by at least one of the rotation worm wheel 233 and the inclination worm wheel 333, the shaft portion 231, 331 forming the rotation center of at least one of the rotation unit 300 and the inclination unit 400 can be configured by at least one of the rotation shaft portion 231 and the inclination shaft portion 331, and the worm gear 232, 332 provided on the outer circumferential surface of the shaft portion 231, 331 and rotated by the worm wheel 233, 333 to rotate at least one of the rotation unit 300 and the inclination unit 400 can be configured by at least one of the rotation worm gear 232 and the inclination worm gear 332.

[0111] Figures 10 to 14 FIG. 1 is a perspective view showing a structure of a rotation and vibration preventing portion according to an embodiment of the present application.

[0112] Referring to Figures 10 to 14 In the clamping device for an antenna according to the embodiment of the present application, the rotation and vibration preventing portion 230, 330 can be configured in various embodiments to provide a counter force not arbitrarily separated between the worm gear teeth of the worm gear 232, 332 formed on the outer circumferential surface of the inclination shaft portion 331 and the rotation shaft portion 231 and the worm teeth 234, 334 formed on the outer circumferential surface of the worm wheel 233, 333.

[0113] More specifically, the rotation and vibration preventing portion 230, 330 can have a larger meshing surface than the case where the worm gear teeth of the worm gear 232, 332 are formed in a flat gear tooth shape, or can maintain a meshing force corresponding to the above-mentioned increased meshing surface.

[0114] Referring to Figure 10 The rotation and vibration preventing portion 230, 330 meshes the worm gear 232, 332 and the worm wheel 233, 333 with each other, and prevents vibration by a counter force as a gear meshing force in a state where the direction of the antenna A is fixed, when no additional power is supplied to the rotation motor 235, 335 (i.e., in the case of no inclination rotation action of the inclination unit 400 and in the case of no rotation rotation action of the rotation unit 300).

[0115] In the structure in which the worm gear 232, 332 meshes with the worm teeth 234, 334 of the worm 233, 333, it is not necessary to provide the worm gear 232, 332 in the form of a flat gear tooth on the outer circumferential surface of the tilt shaft portion 331 and the rotation shaft portion 231, but a bevel gear in which a bevel gear tooth is formed can be provided. The bevel gear is in a form in which the gear meshing surface of the worm teeth 234, 334 of the worm 233, 333 is larger than that of the flat gear tooth, and thus, a larger reaction force is provided, and thus, the resistance to vibration from the outside is excellent.

[0116] Referring to Figure 11 In comparison with the rotation and vibration prevention portion 230, 330 described in Figure 10 The rotation and vibration prevention portion 230, 330 can further include an inner damping idler gear 239a, 339a between the worm gear 232, 332 and the worm 233, 333.

[0117] The inner damping idler gear 239a, 339a can be in the form of a flat gear that meshes with the worm teeth 234, 334 of one side of the worm 233, 333 or in the form of a worm gear that meshes with the worm gear teeth of the other side of the worm gear 232, 332.

[0118] The inner damping idler gear 239a, 339a is a structure that transmits power between the worm 233, 333 and the worm gear 232, 332, and can perform the function of changing the direction of rotation to transmit power.

[0119] Further, the inner damping idler gear 239a, 339a is provided between the worm gear 232, 332 and the worm 233, 333, and thus, the gear meshing area is increased, and thus, the result of indirectly providing a larger reaction force can be obtained. In more detail, one end of the inner damping idler gear 239a, 339a meshes with the worm 233, 333, and the other end of the inner damping idler gear 239a, 339a meshes with the worm gear 232, 332, and thus, the gear meshing area is twice as large as that in the case in which the worm 233, 333 directly meshes with the worm gear 232, 332.

[0120] Meanwhile, the reduction ratio can be increased by adjusting the gear meshing ratio of the inner damping idler gear 239a, 339a, and thus, the additional effect of improving the gear meshing performance can be achieved.

[0121] Referring to Figure 12 In comparison with the Figure 10Compared to the rotation and vibration prevention units 230 and 330 described herein, the rotation and vibration prevention units 230 and 330 can also form outer damping idle gears 239b and 339b on the outer side of the worm gears 233 and 333. When the worm gears 233 and 333 are driven by the rotating motors 235 and 335, the outer damping idle gears 239b and 339b can simply idle through the worm gears 233 and 333.

[0122] The outer damping idle gears 239b and 339b can be in the form of a spur gear or a worm gear, which meshes with the worm gear teeth 234 and 334 on the outside of the worm gears 233 and 333, so as to continuously maintain the state of mutual meshing between the worm gears 232 and 332 and the worm gears 233 and 333.

[0123] Worm gears 233 and 333 can be disposed between the outer damping idle gears 239b and 339b and the worm gears 232 and 332, with one side meshing with the gear teeth of the outer damping idle gears 239b and 339b, and the other side meshing with the worm gear teeth of the worm gears 232 and 332.

[0124] Based on the aforementioned outer damping idle gears 239b and 339b, worm gears 233 and 333 are stably driven to rotate between worm gears 232 and 332 and the outer damping idle gears 239b and 339b. Therefore, the phenomenon of worm gears 233 and 333 being separated from worm gears 232 and 332 is minimized, thereby preventing the rotating unit 300 and tilting unit 400 from rotating arbitrarily due to vibrations transmitted from the outside.

[0125] More specifically, worm gears 233 and 333 are supported by outer damping idle gears 239b and 339b towards worm gears 232 and 332, thereby preventing random separation caused by external vibration. At the same time, the two sides of worm gears 233 and 333 mesh with worm gears 232 and 332 and outer damping idle gears 239b and 339b respectively, thereby ensuring a wider meshing surface.

[0126] Reference Figure 13 ,and Figure 10 Compared to the rotation and vibration prevention parts 230 and 330 described herein, the rotation and vibration prevention parts 230 and 330 may further include additional damping idle speed gears 239c and 339c, which serve as the ends of the inclined shaft part 331 and the rotating shaft part 231, and mesh with brake gears 238 and 338. The brake gears 238 and 338 are separately provided at the ends facing the ends where the worm gears 232 and 332 are formed.

[0127] That is, with Figure 10 Compared to the rotation and vibration prevention parts 230 and 330 described in the text, Figure 13The rotation and vibration prevention parts 230 and 330 shown may further include: brake gears 238 and 338, which are provided on the outer peripheral surfaces of the opposite ends of the ends where worm gears 232 and 332 are formed, in both ends of the inclined shaft 331 and the rotating shaft 231; and additional damping idle gears 239c and 339c, which mesh with brake gears 238 and 338.

[0128] According to the rotation and vibration prevention parts 230 and 330 as described above, in addition to the meshing surfaces of the existing worm gears 233 and 333 and worm gears 232 and 332, additional meshing surfaces of brake gears 238 and 338 and additional damping idle gears 239c and 339c are formed, thereby ensuring a wider meshing surface and maintaining the reaction force against vibrations provided from the outside, thereby preventing the rotating unit 300 and tilting unit 400 from rotating arbitrarily.

[0129] Reference Figure 14 ,and Figure 10 Compared to the rotation and vibration prevention parts 230 and 330 described herein, the rotation and vibration prevention parts 230 and 330 may further include leaf spring dampers 239d and 339d, which are installed on the motor brackets 236 and 336 that act as a medium for setting the worm gears 233 and 333, and tightly press the worm gears 233 and 333 against the worm gear 232 and 332.

[0130] That is, with Figure 10 The rotation and vibration prevention parts 230 and 330 described in the text are... Figure 14 The rotation and vibration prevention parts 230 and 330 shown may include: motor brackets 236 and 336, which rotatably support worm gears 233 and 333; and leaf spring dampers 239d and 339d, which are disposed on one side of the motor brackets 236 and 336 and elastically support the motor brackets 236 and 336 including worm gears 233 and 333 towards the worm gears 232 and 332.

[0131] In the leaf spring dampers 239d and 339d, the two ends 239d' and 339d' can be bent outwards in a manner that are supported by the inner surfaces of the connecting unit outer cover 220 and the rotating outer cover 320, which are respectively provided with rotation and vibration prevention parts 230 and 330, respectively, and are mounted on the motor bracket 236 and 336.

[0132] According to the aforementioned leaf spring dampers 239d and 339d, a reaction force is formed that continuously and elastically supports the worm gears 233 and 333 against the worm gears 232 and 332, thereby preventing the rotating unit 300 and the tilting unit 400 from rotating arbitrarily due to vibrations transmitted from the outside.

[0133] exist Figure 14In the illustrated example of the rotation and vibration prevention portion 230, 330, a leaf spring damper 239d, 339d in the form of a leaf spring is illustrated, but any configuration can be employed as long as elasticity including a general spring can be added.

[0134] In the example in the form of the leaf spring damper 239d, 339d, the elastic support force that supports the worm wheel 233, 333 toward the worm gear 232, 332 can be an elastic support force that, with reference to the above-described Figures 10 to 13 In another example described above, the elastic support force that maintains the degree of engagement force corresponding to the increased engagement surface.

[0135] As described above, in the embodiment of the antenna clamp device of the present application, the rotation and vibration prevention portion can actually change the design of the engagement surface or engagement force of the worm wheel 233, 333 and the worm gear 232, 332 of the tilt angle adjustment portion 330 and the rotation angle adjustment portion 230 that are driven in a manner that participates in the tilt rotation of the tilt unit 400 and the rotation rotation of the rotation unit 300 from the brake portion that is a friction structure between the tilt unit 400 and the rotation unit 300 and the brake portion that is a friction structure between the rotation unit 300 and the common coupling unit 200, thereby preventing arbitrary movement due to small vibrations transmitted from the outside.

[0136] The above describes the embodiment of the antenna clamp device of the present application in detail with reference to the drawings. However, the embodiment of the present application is not limited to the above-described embodiment, and a person skilled in the art can modify and implement it within the equivalent range. Therefore, the true scope of protection of the present application is defined by the scope of the claims.

[0137] Industrial applicability

[0138] The present application provides an antenna clamp device that can increase the degree of freedom of installation and improve workability when installing an antenna on a space-limited guyed mast.

Claims

1. A clamping device for an antenna, characterized in that, include: Rotating unit, used to rotate the antenna horizontally; The tilting element is used to rotate the antenna in the vertical direction; and The rotation and vibration prevention unit rotates at least one of the rotating unit and the tilting unit to adjust the direction of the antenna, and after adjusting the direction of the antenna, prevents the antenna from rotating arbitrarily. A common coupling unit, wherein the rotating unit is coupled to the common coupling unit in a manner that allows rotation along the horizontal direction, and the tilting unit is coupled to the rotating unit in a manner that allows rotation along the vertical direction; The aforementioned rotation and vibration prevention unit includes: a rotation angle adjustment unit disposed inside the common end joint of the common joint unit and a tilt angle adjustment unit disposed inside the rotating end joint of the rotating unit; wherein, the rotation angle adjustment unit causes the rotating unit to rotate, preventing the rotating unit from rotating arbitrarily in a fixed position due to rotation; the tilt angle adjustment unit causes the tilting unit to tilt, preventing the tilting unit from rotating arbitrarily in a fixed position due to tilt. A rotary motor is installed inside the shared connecting unit, causing the rotary unit to rotate in the horizontal direction; A tilting motor is installed inside the rotating unit, which causes the tilting unit to rotate in the up-down direction; The rotation angle adjustment unit includes: The rotating shaft portion is formed vertically along the vertical direction inside the outer casing of the connecting unit, which forms a common end joint portion and an internal space. A worm gear is integrally formed on the outer peripheral surface of the rotating shaft, and worm gear teeth are formed on the outer peripheral surface; and A worm gear, having worm gear teeth that mesh with the worm gear teeth of a worm gear, is arranged orthogonally to the rotating shaft portion; The tilt angle adjustment unit includes: The inclined shaft portion is formed horizontally along the horizontal direction inside the rotating outer casing that forms the rotating end joint and the internal space; The worm gear is integrally formed on the outer peripheral surface of the inclined shaft portion, and worm gear teeth are formed on the outer peripheral surface; and A worm gear, having worm gear teeth that mesh with the worm gear teeth of a worm gear, is arranged orthogonally to the rotating shaft portion; The aforementioned rotation and vibration prevention unit also includes an outer damping idle gear. The aforementioned worm gear is disposed between the aforementioned outer damping idle gear and the aforementioned worm gear, with one side meshing with the gear teeth of the aforementioned outer damping idle gear and the other side meshing with the worm gear teeth of the aforementioned worm gear.

2. The antenna clamping device according to claim 1, characterized in that, The worm gear teeth of the above-mentioned worm gear are formed in the shape of flat gear teeth.

3. The antenna clamping device according to claim 1, characterized in that, The worm gear teeth of the above-mentioned worm gear are formed in the form of helical gear teeth.

4. The antenna clamping device according to claim 1, characterized in that, The aforementioned rotation and vibration prevention unit also includes an inner damping idle gear. The aforementioned inner damping idle gear is disposed between the aforementioned worm gear and the aforementioned worm gear, with one side meshing with the worm gear teeth of the aforementioned worm gear and the other side meshing with the worm gear teeth of the aforementioned worm gear.

5. The antenna clamping device according to claim 4, characterized in that, The aforementioned inner damping idle gear is formed in the shape of a flat gear.

6. The antenna clamping device according to claim 4, characterized in that, The aforementioned inner damping idle gear is formed in the form of a worm gear that can mesh with the aforementioned worm gear teeth.

7. The antenna clamping device according to claim 1, characterized in that, The aforementioned outer damping idle gear is formed in the shape of a flat gear.

8. The antenna clamping device according to claim 1, characterized in that, The aforementioned outer damping idle gear is formed in the form of a worm gear that can mesh with the aforementioned worm gear teeth.

9. The antenna clamping device according to claim 1, characterized in that, The aforementioned rotation and vibration prevention unit also includes: Brake gear, formed at the end of the aforementioned shaft portion; and An additional damping idle gear is added, which meshes with the aforementioned brake gear.

10. The antenna clamping device according to claim 1, characterized in that, The aforementioned rotation and vibration prevention unit also includes: The motor bracket supports the aforementioned worm gear in a rotatable manner; and A leaf spring damper is disposed on one side of the motor bracket and is used to elastically support the motor bracket toward the worm gear side.

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