An ultra-wideband ceiling-mount antenna

Abstract

The application relates to the technical field of ceiling antennas, and discloses an ultra-wideband ceiling antenna which comprises a shell, an upper radiation body, a lower radiation body and a sealing cover assembly are sequentially arranged in the shell from top to bottom; a protection pipe is arranged at the axis of the upper radiation body and the lower radiation body, a radio frequency coaxial jumper is inserted through the protection pipe, an adapter pipe is rotationally connected to the outer side of the protection pipe, a tubular mounting handle is arranged on the outer side of the bottom end of the adapter pipe, and a spring one is arranged between the top end of the tubular mounting handle and the top wall of the lower radiation body. The compressed distance of the spring one gradually increases, so that the pressure between the bottom of the lower radiation body and the annular flange gradually increases; the upper radiation body is tightly attached to the inner wall of the accommodating ring through the elasticity of the spring two; the extrusion force between the upper radiation body and the lower radiation body and the inner wall of the shell can be adjusted, the upper radiation body and the lower radiation body are stably installed in the shell, and the purpose of preventing the upper radiation body and the lower radiation body from shaking is achieved.

Description

Technical Field

[0001] This invention relates to the field of ceiling-mounted antenna technology, specifically to an ultra-wideband ceiling-mounted antenna. Background Technology

[0002] A ceiling-mounted antenna is a communication device used for indoor signal coverage. Its shape resembles a mushroom head or a pacifier, hence it is also called a mushroom-head antenna or a pacifier antenna. It is mainly used to solve signal blind spots in indoor areas such as hotels, office buildings, and residential buildings, achieving 360° coverage without dead zones through a distributed system.

[0003] Chinese patent application date: May 15, 2024, publication number: CN118198715B, discloses a biconical omnidirectional ceiling-mounted antenna. It includes a first conical radiator, a second conical radiator, a spacer fixing component, a feed welding component, and an RF coaxial jumper. The first conical radiator has a first through hole at its bottom, and the second conical radiator has a corresponding second through hole at its bottom. The spacer fixing component has multiple hooks along its circumference, and the first conical radiator has multiple corresponding positioning holes. The upper end of the feed welding component passes through the second through hole from bottom to top and connects to the spacer fixing component. The feed welding component has mounting holes along its axial direction, and the RF coaxial jumper passes through the mounting holes. The inner conductor of the RF coaxial jumper is welded and fixed to the first conical radiator, and the outer conductor of the RF coaxial jumper is welded and fixed to the feed welding component. This improves the stability of the biconical omnidirectional ceiling-mounted antenna installation structure, eliminating the need for an outer cover or external parts to effectively fix the semi-finished product, and allowing for direct visual inspection after installation.

[0004] In this technical solution, the conical radiator is fixed by a snap-fit ​​mechanism. However, this requires holes to be made on the surface of the radiator. After repeated use, the elasticity of the snap-fit ​​changes, and gaps can easily appear when the snap-fit ​​engages with the holes. This causes the conical radiator to wobble inside the mushroom-shaped housing. This wobble can lead to poor contact or even disconnection at the connection point with the RF coaxial jumper. Therefore, further improvements are needed. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides an ultra-wideband ceiling-mounted antenna that offers advantages such as stable fixation of the radiator and convenient mounting of the antenna to the ceiling. It solves the problem that fixing the radiator using a snap-fit ​​method results in unstable fixation, which can easily cause the radiator to shake and thus affect the connection stability between the radiator and the RF coaxial jumper.

[0006] To achieve the aforementioned goal of stable radiator fixation and convenient antenna mounting on the ceiling, this invention provides the following technical solution: an ultra-wideband ceiling-mounted antenna, comprising a housing, wherein an upper radiator, a lower radiator, and a sealing cover assembly are arranged sequentially from top to bottom inside the housing; a protective tube is provided at the axis of the upper and lower radiators, and an RF coaxial jumper is inserted through the protective tube, the RF coaxial jumper being fixed to the upper and lower radiators by welding; an adapter tube is rotatably connected to the outside of the protective tube, and a tubular mounting handle is sleeved on the outer side of the bottom end of the adapter tube; the adapter tube and the tubular mounting handle can slide relative to each other along their axial direction; a lifting assembly is provided between the top end of the adapter tube and the upper radiator; a spring is provided between the top end of the tubular mounting handle and the top wall of the lower radiator; and the sealing cover assembly is used to drive the tubular mounting handle to move along its axial direction.

[0007] Preferably, an annular flange is fixedly installed on the inner wall of the bottom end of the outer casing, and a limiting protrusion is fixedly arranged at the bottom of the annular flange. The bottom edge of the lower radiator is attached to the bottom of the annular flange, and the limiting protrusion is inserted through and inserted into the bottom edge of the lower radiator. A receiving ring and an internally threaded tube are fixedly installed on the top wall of the outer casing. The axes of the outer casing, the receiving ring, and the internally threaded tube coincide. An installation window is opened through the circumference of the internally threaded tube. The top end of the upper radiator is inserted into the receiving ring, and the radio frequency coaxial jumper passes through the installation window.

[0008] Preferably, the protective tube includes a lower sleeve, an upper sleeve is fixedly installed on the top of the lower sleeve, and a hexagonal tube is fixedly installed on the top of the upper sleeve. The cross-section of the hexagonal tube is regular hexagonal, and the bottom opening of the internal threaded tube is adapted to the cross-section of the hexagonal tube. The hexagonal tube is inserted into the internal threaded tube, and the radio frequency coaxial jumper passes through the lower sleeve, the upper sleeve, and the hexagonal tube.

[0009] Preferably, the adapter tube includes an upper sleeve fitted outside the lower sleeve, a lower sleeve fixedly installed at the bottom end of the upper sleeve, a connecting tube fixedly installed at the top end of the upper sleeve, a straight groove on the outer wall of the upper sleeve, the straight groove being parallel to the axis of the upper sleeve, a spring being fitted outside the lower sleeve, the top end of the spring being attached to the bottom of the upper sleeve, and the bottom end of the spring being attached to the inner wall of the tubular mounting handle.

[0010] Preferably, the tubular mounting handle includes a mounting handle body sleeved on the outer side of the lower half of the upper embedded tube. A slide bar is fixedly installed on the inner wall of the mounting handle body. The slide bar is slidably connected in a straight groove. A threaded portion is provided on the outer wall of the mounting handle body. A straight groove is provided on the threaded portion. The straight groove is parallel to the axis of the mounting handle body. A mounting clamp is fixedly installed at the bottom end of the mounting handle body. The lower embedded tube passes through the center of the mounting clamp.

[0011] Preferably, the mounting clamping component includes a receiving cylinder fixedly mounted at the bottom end of the mounting handle body. A turntable is rotatably connected inside the receiving cylinder. An inclined groove is arrayed at the bottom of the turntable. A sliding groove is arrayed on the circumferential surface of the receiving cylinder. A clamping arm is slidably connected within the sliding groove. The clamping arm is fitted against the bottom of the turntable. A sliding column is fixedly mounted at the top of the clamping arm. The sliding column is slidably connected within the inclined groove. A deflection drive component is provided between the turntable and the lower embedded tube.

[0012] Preferably, the deflection drive includes an array of ball bearings fixed on the inner wall of a turntable, a guide groove is provided on the outer wall of the lower embedded tube, the ball bearings are fixedly installed on the inner wall of the turntable, and the ball bearings are slidably connected in the guide groove; the guide groove includes a straight groove three, an inclined groove two, and a straight groove four, the straight groove three and the straight groove four are both parallel to the axis of the lower embedded tube, and the bottom end of the straight groove three and the top end of the straight groove four are connected by the inclined groove two.

[0013] Preferably, the lifting assembly includes a rotating cylinder rotatably connected to the outside of the connecting pipe, a torsion spring fixedly installed between the inner wall of the rotating cylinder and the outer wall of the connecting pipe, a second turntable fixedly installed on the outer wall of the bottom end of the upper sleeve, the second turntable rotatably connected inside the rotating cylinder, push rods fixedly arranged on the top of the rotating cylinder, an external threaded pipe threadedly connected to the outer side of the internal threaded pipe, a support ring fixedly installed on the outer wall of the bottom end of the external threaded pipe, the support ring fitting against the top of the rotating cylinder, and the push rods slidingly connected to the support ring through the hole; the top of the second turntable has an array of inclined grooves three, one end of which is connected to an arc groove, the center of which coincides with the axis of the second turntable; the circumferential surface of the rotating cylinder has an array of sliding grooves two, a support arm slidably connected within the sliding grooves two, the support arm fitting against the top of the second turntable, a sliding column two fixedly installed at the bottom of the support arm, the sliding column two slidably connected within the inclined grooves three and the arc groove, and the support arm fitting against the bottom of the upper radiator.

[0014] Preferably, the sealing cover assembly includes an inner liner plate inserted into the bottom of the outer shell, the inner liner plate fitting against the bottom of the lower radiator, and limiting grooves arrayed on the edges of both the inner liner plate and the lower radiator, with limiting protrusions inserted into the limiting grooves. A sealing cover body is fitted onto the bottom of the outer shell, an annular groove is formed on the bottom side wall of the sealing cover body, and horizontal bars are arrayed and fixed on the outer wall of the bottom of the outer shell. An interface is arrayed on the top of the sealing cover body, the interface communicating with the annular groove, and the horizontal bars passing through the interface and slidably connected within the annular groove. An clearance hole is formed at the center of the sealing cover body, and guide bars are arrayed and fixed on the inner wall of the clearance hole, the guide bars slidably connected within a straight groove. An arched cover is fixedly installed at the center of the inner liner plate, and two clamping plates are fixedly installed at the bottom of the arched cover. The clamping plates have an L-shaped cross-section, and threaded collars are detachably installed in both clamping plates, the threaded collars being threadedly connected to the threaded portion.

[0015] Preferably, the threaded collar includes two insert plates inserted between two clamping plates. A semi-threaded tube is fixedly installed at one end of each insert plate, and the two semi-threaded tubes are threadedly connected to the threaded portion. A square sleeve is fixedly installed at the bottom of each insert plate. A retaining strip is slidably connected to both ends of the square sleeve. A spring is fixedly installed between the retaining strip and the inner wall of the square sleeve. V-grooves are formed at both ends of the two clamping plates, and the spring is engaged within the V-grooves.

[0016] Compared with the prior art, the present invention provides an ultra-wideband ceiling antenna, which has the following advantages:

[0017] 1. This ultra-wideband ceiling-mounted antenna works by lifting the sealing cover body upwards, allowing the horizontal bar to pass through the interface. Rotating the sealing cover body then slides the horizontal bar into the annular groove. As the sealing cover body rotates, it slides into the straight groove two in conjunction with the guide bar, causing the mounting handle body to rotate. Through the threaded connection between the threaded part and the semi-threaded pipe, the mounting handle body moves upwards while rotating, gradually increasing the compression distance of the spring and thus gradually increasing the pressure between the bottom of the lower radiator and the annular flange. When the mounting handle body and the upper insert tube rotate, the torsion spring connects and drives the rotating cylinder to rotate. The push rod pushes the support ring and the externally threaded pipe to rotate together, cooperating with the threaded connection between the internally threaded pipe and the externally threaded pipe. The mechanism works by causing the support ring to gradually move towards the internal threaded tube, and through the elasticity of spring two, the rotating cylinder follows the support ring closer to the internal threaded tube. As the rotating cylinder rotates relative to turntable two, slide column two slides along inclined groove three, and the support arm extends from slide groove two. After the support arm is in contact with the bottom of the upper radiator, the elasticity of spring two causes the upper radiator to adhere to the inner wall of the receiving ring. The rotating cylinder continues to rotate, and the support ring separates from the rotating cylinder. Thus, through the elasticity of spring two, the upper radiator is tightly pressed against the inner wall of the receiving ring. This achieves the purpose of adjusting the pressure between the upper and lower radiators and the inner wall of the outer shell, ensuring the upper and lower radiators are stably installed inside the outer shell and preventing them from shaking.

[0018] 2. This ultra-wideband ceiling-mounted antenna is installed by holding the outer casing and passing the receiving cylinder and mounting handle through a pre-drilled hole in the ceiling. Then, the sealing cover body is rotated, causing the mounting handle body to move into the outer casing. As the ball slides along the second inclined groove, it drives the turntable to rotate relative to the receiving cylinder. The turntable is located on one side wall of the inclined groove and presses against the first sliding column, causing the clamping arm to extend from one part of the groove. Then, the sealing cover body is rotated again, and the ball slides along the third straight groove. The clamping arm remains extended to the outside of the receiving cylinder until it is in contact with the top of the ceiling. Thus, the clamping arm and the sealing cover body cooperate to clamp the antenna onto the ceiling, thereby achieving the purpose of easy installation to adapt to the thickness of the ceiling.

[0019] 3. During the installation process of this ultra-wideband ceiling antenna, the mounting handle body moves further into the outer shell, and springs one and two are compressed here, which further increases the pressure between the upper radiator and the inner wall of the receiving ring, and between the lower radiator and the bottom of the limiting protrusion, further preventing the upper and lower radiators from shaking inside the outer shell. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of an ultra-wideband ceiling antenna proposed in this invention;

[0021] Figure 2 This is a schematic diagram of the front cross-sectional structure of an ultra-wideband ceiling antenna proposed in this invention;

[0022] Figure 3 This is a three-dimensional structural diagram of an ultra-wideband ceiling antenna proposed in this invention after removing the outer shell, bracket assembly, and sealing cover assembly;

[0023] Figure 4 This is a three-dimensional cross-sectional view of the outer shell of an ultra-wideband ceiling antenna proposed in this invention.

[0024] Figure 5 This is a three-dimensional structural diagram of the protective tube, radio frequency coaxial jumper, adapter tube, and tubular mounting handle of an ultra-wideband ceiling antenna proposed in this invention.

[0025] Figure 6 This is a three-dimensional structural diagram of the protective tube, radio frequency coaxial jumper, adapter tube, and tubular mounting handle of an ultra-wideband ceiling antenna proposed in this invention, in their separated states.

[0026] Figure 7 This is a three-dimensional structural diagram of the tubular mounting handle and adapter tube of the ultra-wideband ceiling antenna proposed in this invention in their separated state.

[0027] Figure 8 This is a three-dimensional structural diagram of the mounting clamp at the bottom of the tubular mounting handle of an ultra-wideband ceiling antenna proposed in this invention.

[0028] Figure 9 This is a three-dimensional structural diagram of the protective tube and support assembly of an ultra-wideband ceiling antenna proposed in this invention.

[0029] Figure 10 This is a three-dimensional cross-sectional view of the support component of an ultra-wideband ceiling antenna proposed in this invention.

[0030] Figure 11 This is a three-dimensional structural diagram of the outer shell, protective tube, and support assembly of the ultra-wideband ceiling antenna proposed in this invention, in their separated states.

[0031] Figure 12This is a three-dimensional structural diagram of the sealing cover assembly of an ultra-wideband ceiling antenna proposed in this invention;

[0032] Figure 13 This is a bottom view of the threaded collar structure in the sealing cover assembly of an ultra-wideband ceiling antenna proposed in this invention.

[0033] In the diagram: 100, outer casing; 200, upper radiator; 300, lower radiator; 400, protective tube; 500, RF coaxial jumper; 600, adapter tube; 700, tubular mounting handle; 800, support assembly; 900, sealing cap assembly; 1000, spring one;

[0034] 101. Annular flange; 102. Limiting rib; 103. Horizontal bar; 104. Receiving ring; 105. Internally threaded tube; 106. Mounting window; 107. Externally threaded tube; 108. Support ring;

[0035] 401. Lower sleeve; 402. Upper sleeve; 403. Hexagonal tube; 601. Upper embedded tube; 602. Lower embedded tube; 603. Connecting tube; 604. Straight groove one; 605. Spring two;

[0036] 701. Mounting handle body; 702. Sliding bar; 703. Threaded part; 704. Straight groove two; 705. Receiving cylinder; 706. Turntable one; 707. Guide groove; 708. Sliding ball; 709. Inclined groove one; 710. Sliding groove one; 711. Clamping arm; 712. Sliding column one; 7071. Straight groove three; 7072. Inclined groove two; 7073. Straight groove four;

[0037] 801. Rotary drum; 802. Torsion spring; 803. Turntable II; 804. Inclined groove III; 805. Arc groove; 806. Slide groove II; 807. Support arm; 808. Slide column II; 809. Push rod;

[0038] 901. Inner liner plate; 902. Limiting groove; 903. Sealing cover body; 904. Annular groove; 905. Connecting interface; 906. Clearance hole; 907. Guide strip; 908. Arched cover; 909. Clamping plate; 910. Insert plate; 911. Semi-threaded pipe; 912. Square sleeve; 913. Locking strip; 914. Spring three; 915. V-groove. Detailed Implementation

[0039] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0040] Please see Figures 1-3 An ultra-wideband ceiling-mounted antenna includes a housing 100. Inside the housing 100, from top to bottom, an upper radiator 200, a lower radiator 300, and a sealing cover assembly 900 are arranged sequentially. A protective tube 400 is provided at the axis of the upper radiator 200 and the lower radiator 300. An RF coaxial jumper 500 is inserted through the protective tube 400 and fixed to the upper radiator 200 and the lower radiator 300 by welding. An adapter tube 600 is rotatably connected to the outside of the protective tube 400. A tubular mounting handle 700 is sleeved on the outer side of the bottom end of the adapter tube 600. The adapter tube 600 and the tubular mounting handle 700 can slide relative to each other along their axis. A lifting assembly 800 is provided between the top end of the adapter tube 600 and the upper radiator 200. A spring 1000 is provided between the top end of the tubular mounting handle 700 and the top wall of the lower radiator 300. The sealing cover assembly 900 is used to drive the tubular mounting handle 700 to move along its axis.

[0041] Please see Figure 4 An annular flange 101 is fixedly installed on the inner wall of the bottom end of the outer casing 100. A limiting protrusion 102 is fixedly arranged in an array at the bottom of the annular flange 101. The bottom edge of the lower radiator 300 is fitted against the bottom of the annular flange 101, and the limiting protrusion 102 is inserted through and connected to the bottom edge of the lower radiator 300. The tubular mounting handle 700 is driven upward by the sealing cover assembly 900, compressing the spring 1000 and causing the lower radiator 300 to tend to move upward. As the compressed length of the spring 1000 increases, the compressive force between the lower radiator 300 and the annular flange 101 gradually increases, preventing the lower radiator 300 from shaking inside the outer casing 100. Furthermore, the limiting protrusion 102 further limits the lower radiator 300, preventing it from rotating inside the outer casing 100.

[0042] A receiving ring 104 and an internally threaded tube 105 are fixedly installed on the top wall of the outer casing 100. The axes of the outer casing 100, the receiving ring 104, and the internally threaded tube 105 coincide. An installation window 106 is provided through the circumference of the internally threaded tube 105. The top end of the upper radiator 200 is inserted into the receiving ring 104, and the upper radiator 200 is supported from the bottom by the supporting assembly 800, so that the upper radiator 200 is stably clamped between the receiving ring 104 and the supporting assembly 800. The radio frequency coaxial jumper 500 passes through the installation window 106, passes through and is fixed to the upper radiator 200. Finally, the top end of the radio frequency coaxial jumper 500 is welded and fixed to the surface of the lower radiator 300.

[0043] Please see Figures 5-6The protective tube 400 includes a lower sleeve 401, with an upper sleeve 402 fixedly installed on the top of the lower sleeve 401. The outer diameter of the upper sleeve 402 is smaller than that of the lower sleeve 401. A hexagonal tube 403 is fixedly installed on the top of the upper sleeve 402. The cross-section of the hexagonal tube 403 is regular hexagonal, and the bottom opening of the internally threaded tube 105 is adapted to the cross-section of the hexagonal tube 403. The hexagonal tube 403 is inserted into the internally threaded tube 105, thereby preventing the protective tube 400 from rotating relative to the outer casing 100 after the hexagonal tube 403 is inserted into the internally threaded tube 105. The radio frequency coaxial jumper 500 passes through the lower sleeve 401, the upper sleeve 402, and the hexagonal tube 403.

[0044] Please see Figures 5-6 The transfer tube 600 includes an upper sleeve 601 sleeved on the outside of the lower sleeve 401. A lower sleeve 602 is fixedly installed at the bottom end of the upper sleeve 601. The outer diameter of the lower sleeve 602 is smaller than the outer diameter of the upper sleeve 601. A connecting tube 603 is fixedly installed at the top of the upper sleeve 601. A straight groove 604 is opened on the outer wall of the upper sleeve 601. The straight groove 604 is parallel to the axis of the upper sleeve 601. A spring 605 is sleeved on the outside of the lower sleeve 602. The top end of the spring 605 is attached to the bottom of the upper sleeve 601, and the bottom end of the spring 605 is attached to the inner wall of the tubular mounting handle 700. The elasticity of the second spring 605 causes the upper insert 601, lower insert 602 and connecting pipe 603 to have an upward tendency, which in turn causes the lifting assembly 800 to have an upward tendency. The lifting assembly 800 supports the bottom of the upper radiator 200. Thus, the elasticity of the second spring 605 can maintain the compressive force between the upper radiator 200 and the receiving ring 104, preventing the upper radiator 200 from shaking inside the outer shell 100.

[0045] Please see Figures 7-8 The tubular mounting handle 700 includes a mounting handle body 701 sleeved on the outer side of the lower half of the upper insert tube 601. A slide bar 702 is fixedly mounted on the inner wall of the mounting handle body 701. The slide bar 702 is slidably connected in the straight groove 604. The bottom end of the spring 605 is attached to the bottom wall of the mounting handle body 701. Thus, the mounting handle body 701 and the upper insert tube 601 can rotate synchronously, while the upper insert tube 601 can slide relative to the mounting handle body 701. When the lifting assembly 800 lifts the bottom of the upper radiator 200, the upward movement of the mounting handle body 701 increases the compression of the spring 605, thereby increasing the compressive force between the upper radiator 200 and the receiving ring 104.

[0046] The outer wall of the mounting handle body 701 is provided with a threaded portion 703, and a straight groove 704 is formed on the threaded portion 703. The straight groove 704 is parallel to the axis of the mounting handle body 701. A mounting clamp is fixedly installed at the bottom end of the mounting handle body 701, and the lower embedded tube 602 extends out from the center of the mounting clamp. The mounting clamp cooperates with the sealing cover assembly 900 to clamp the upper and lower sides of the ceiling. In practice, a pre-drilled hole is made in the ceiling. After the mounting clamp passes through the hole, the sealing cover assembly 900 drives the tubular mounting handle 700 to move, adjusting the distance between the mounting clamp and the sealing cover assembly 900 to adapt to the thickness of the ceiling.

[0047] The mounting clamping component includes a receiving cylinder 705 fixedly mounted at the bottom end of the mounting handle body 701. A turntable 706 is rotatably connected inside the receiving cylinder 705. An inclined groove 709 is arrayed at the bottom of the turntable 706. A sliding groove 710 is arrayed on the circumferential surface of the receiving cylinder 705. A clamping arm 711 is slidably connected in the sliding groove 710. The clamping arm 711 fits against the bottom of the turntable 706. A sliding column 712 is fixedly mounted at the top of the clamping arm 711. The sliding column 712 is slidably connected in the inclined groove 709. A deflection drive component is provided between the turntable 706 and the lower embedded tube 602. As the mounting handle body 701 and the receiving cylinder 705 move upward, the deflection drive causes the turntable 706 to rotate relative to the receiving cylinder 705. The receiving cylinder 705, located on the side wall of the inclined groove 709, presses against the sliding column 712, causing the sliding column 712 to extend out from the sliding groove 710 and block above the pre-drilled hole in the ceiling. Thus, the sliding column 712, in conjunction with the sealing cover assembly 900, clamps onto the ceiling, allowing the ceiling-mounted antenna to be installed on the ceiling.

[0048] The deflection drive includes a series of ball bearings 708 fixedly arranged on the inner wall of the turntable 706. A guide groove 707 is formed on the outer wall of the lower tube 602. The ball bearings 708 are fixedly installed on the inner wall of the turntable 706 and slidably connected within the guide groove 707. The guide groove 707 includes a straight groove 7071, an inclined groove 7072, and a straight groove 7073. Both straight grooves 7071 and 7073 are parallel to the axis of the lower tube 602. The bottom end of straight groove 7071 and the top end of straight groove 7073 are connected by inclined groove 7072. Thus, when the ball bearings 708 slide within straight grooves 7071 and 7073, the turntable 706 remains relatively stationary with respect to the receiving cylinder 705. When the ball bearings 708 slide along inclined groove 7072, the turntable 706 rotates relative to the receiving cylinder 705.

[0049] Please see Figures 9-11The lifting assembly 800 includes a rotating cylinder 801 rotatably connected to the outside of the connecting pipe 603. A torsion spring 802 is fixedly installed between the inner wall of the rotating cylinder 801 and the outer wall of the connecting pipe 603. A second turntable 803 is fixedly installed on the outer wall of the bottom end of the upper sleeve 402. The second turntable 803 is rotatably connected to the inside of the rotating cylinder 801. Push rods 809 are fixedly arranged on the top of the rotating cylinder 801. An external threaded pipe 107 is threadedly connected to the outside of the internal threaded pipe 105. A support ring 108 is fixedly installed on the outer wall of the bottom end of the external threaded pipe 107. The support ring 108 fits against the top of the rotating cylinder 801. The push rods 809 are slidably connected to the support ring 108.

[0050] Initially, when the rotating cylinder 801 is attached to the bottom of the support ring 108, the support ring 108 supports the rotating cylinder 801 while allowing the turntable 803 and the support arm 807 to be positioned below the upper radiator 200. When the mounting handle body 701 and the upper insert tube 601 rotate synchronously, the rotating cylinder 801 can be driven to rotate through the connection of the torsion spring 802. Through the connection between the push rod 809 and the support ring 108, the external threaded tube 107 is driven to rotate. In conjunction with the threaded connection between the external threaded tube 107 and the internal threaded tube 105, the external threaded tube 107 moves upward during rotation. Then, through the elasticity of the spring 605, the rotating cylinder 801 first moves upward following the support ring 108. During this process, the support arm 807 extends from the side of the rotating drum 801. After the support arm 807 is attached to the bottom of the upper radiator 200, as the rotating drum 801 continues to rotate, the external threaded tube 107 gradually moves away from the rotating drum 801, and the support ring 108 no longer supports the rotating drum 801. This allows the upper radiator 200 to be tightly attached to the top wall of the receiving ring 104 under the elastic action of the spring 605.

[0051] The top of the turntable 2 803 is provided with an inclined groove 3 804, one end of which is connected to an arc groove 805. The center of the arc groove 805 coincides with the axis of the turntable 2 803. The circumferential surface of the rotating cylinder 801 is provided with a sliding groove 2 806. A support arm 807 is slidably connected in the sliding groove 2 806. The support arm 807 is attached to the top of the turntable 2 803. A sliding column 2 808 is fixedly installed at the bottom of the support arm 807. The sliding column 2 808 is slidably connected in the inclined groove 3 804 and the arc groove 805. The support arm 807 is attached to the bottom of the upper radiator 200.

[0052] When the rotating drum 801 rotates relative to the rotating drum 801, the support arm 807 rotates synchronously with the rotating drum 801. When the sliding column 808 slides along the inclined groove 804, it can drive the support arm 807 to move outward along the sliding groove 806. When the sliding column 808 slides into the arc groove 805, the end of the support arm 807 extends outward from the rotating drum 801. When the sliding column 808 slides along the arc groove 805, the support arm 807 remains in the state of extending outward from the rotating drum 801. After the sliding column 808 slides to the end of the arc groove 805, when the upper insert tube 601 continues to rotate, the torsion spring 802 is torn. Thus, through the elasticity of the torsion spring 802, the rotating drum 801 is kept in the state after rotation.

[0053] Please see Figure 4 and Figures 12-13 The sealing cover assembly 900 includes an inner liner plate 901 inserted into the bottom end of the outer casing 100. The inner liner plate 901 is fitted to the bottom of the lower radiator 300. Limiting grooves 902 are arrayed on the edges of both the inner liner plate 901 and the lower radiator 300. Limiting protrusions 102 are inserted into the limiting grooves 902, and the bottom of the limiting protrusions 102 is flush with the bottom of the inner liner plate 901, thereby restricting the rotation of the lower radiator 300 and the inner liner plate 901 through the limiting protrusions 102. A sealing cover body 903 is fitted onto the bottom end of the outer casing 100, and the limiting grooves 902 are fitted to the inner wall.

[0054] The sealing cover body 903 has an annular groove 904 at the bottom of its side wall. A horizontal bar 103 is fixedly arranged on the outer wall of the bottom end of the outer casing 100. An interface 905 is arranged on the top of the sealing cover body 903, communicating with the annular groove 904. The horizontal bar 103 passes through the interface 905 and slides within the annular groove 904. During assembly, by lifting the sealing cover body 903 upwards, the horizontal bar 103 passes through the interface 905 and enters the annular groove 904. Then, by rotating the sealing cover body 903, the horizontal bar 103 is displaced from the interface 905, and slides into the annular groove 904, thus stably connecting the sealing cover body 903 to the bottom of the outer casing 100.

[0055] An clearance hole 906 is provided at the center of the sealing cover body 903. Guide strips 907 are fixedly arranged on the inner wall of the clearance hole 906. The guide strips 907 are slidably connected in the straight groove 704. Through the guiding effect of the straight groove 704 and the guide strips 907, the mounting handle body 701 can slide relative to the sealing cover body 903.

[0056] An arched cover 908 is fixedly installed at the center of the inner liner 901. Two clamping plates 909 are fixedly installed at the bottom of the arched cover 908. The clamping plates 909 have an L-shaped cross-section. Threaded collars are detachably installed inside both clamping plates 909. The threaded collars are threadedly connected to the threaded part 703. The arched cover 908 provides installation space for the threaded collars.

[0057] The threaded collar includes two insert plates 910, which are inserted between two clamping plates 909. A semi-threaded tube 911 is fixedly installed at one end of each insert plate 910, and the two semi-threaded tubes 911 are threadedly connected to the threaded part 703. This allows the two semi-threaded tubes 911 to be separated. During assembly, the mounting handle body 701 passes through the center of the arched cover 908, and the semi-threaded tubes 911 are then threaded onto the mounting handle body 701. A square sleeve 912 is fixedly installed at the bottom of each insert plate 910. A retaining strip 913 is slidably connected to both ends of the square sleeve 912. A spring 914 is fixedly installed between the retaining strip 913 and the inner wall of the square sleeve 912. V-grooves 915 are formed at both ends of the two clamping plates 909, and the spring 914 is engaged within the V-grooves 915. Thus, through the elasticity of spring 3 914, the locking strip 913 is engaged in the V-groove 915, and the insert plate 910 is stably connected in the clamping plate 909.

[0058] In use, the protective tube 400, the radio frequency coaxial jumper 500, the adapter tube 600 and the tubular mounting handle 700 are passed through the center of the sealing cover body 903, the inner liner plate 901, the lower radiator 300 and the upper radiator 200. The radio frequency coaxial jumper 500 is welded and fixed to the upper radiator 200 and the lower radiator 300. Then, the insert plate 910 is inserted into the clamping plate 909. Through the elasticity of the spring 914, the locking strip 913 is locked into the V-groove 915, so that the two semi-threaded tubes 911 are threadedly connected to the mounting handle body 701.

[0059] Next, invert the outer shell 100 so that the opening of the outer shell 100 faces upward. Insert the upper radiator 200, the lower radiator 300, and the inner liner 901 into the outer shell 100. Insert the upper radiator 200 into the receiving ring 104. Insert the hexagonal tube 403 into the internally threaded tube 105. The push rod 809 passes through the support ring 108, and the support ring 108 is attached to the end of the rotating drum 801.

[0060] Next, lift the sealing cover body 903 upwards so that the horizontal bar 103 passes through the interface 905. Then rotate the sealing cover body 903 so that the horizontal bar 103 slides into the annular groove 904. As the sealing cover body 903 rotates, it slides in the straight groove 704 with the guide bar 907, which drives the mounting handle body 701 to rotate. Through the threaded part 703 and the threaded connection with the semi-threaded tube 911, the mounting handle body 701 moves upward while rotating. The spring 1000 is compressed by a gradually increasing distance, which makes it easier for the bottom of the lower radiator 300 to gradually increase the pressure between it and the annular flange 101.

[0061] When the mounting handle body 701 and the upper insert tube 601 rotate, the rotating drum 801 is driven to rotate through the connecting action of the torsion spring 802. The push rod 809 pushes the support ring 108 and the external threaded tube 107 to rotate together. With the threaded connection between the internal threaded tube 105 and the external threaded tube 107, the support ring 108 gradually moves towards the internal threaded tube 105. Through the elasticity of the second spring 605, the rotating drum 801 follows the support ring 108 and moves closer to the internal threaded tube 105.

[0062] The rotating cylinder 801 rotates relative to the turntable 803, the sliding column 808 slides along the inclined groove 804, and the support arm 807 extends out from the sliding groove 806. After the support arm 807 is attached to the bottom of the upper radiator 200, the upper radiator 200 is attached to the inner wall of the receiving ring 104 by the elasticity of the spring 605. The rotating cylinder 801 continues to rotate, and the support ring 108 separates from the rotating cylinder 801. Thus, the upper radiator 200 is tightly attached to the inner wall of the receiving ring 104 by the elasticity of the spring 605.

[0063] During the above process, the receiving cylinder 705 moves upward along the mounting handle body 701, the sliding ball 708 slides along the straight groove 7073, and the clamping arm 711 is inside the receiving cylinder 705.

[0064] When installing this application on the ceiling, hold the outer casing 100 and pass the receiving cylinder 705 and the mounting handle body 701 through the pre-drilled hole in the ceiling. Then rotate the sealing cover body 903 to move the mounting handle body 701 into the outer casing 100. When the ball bearing 708 slides along the inclined groove 7072, it drives the turntable 706 to rotate relative to the receiving cylinder 705. The turntable 706 is located on the side wall of the inclined groove 709 and presses the sliding column 712, causing the clamping arm 711 to extend from the sliding groove 710. Then, continue to rotate the sealing cover body 903, and the ball bearing 708 slides along the straight groove 7071. The clamping arm 711 remains extended to the outside of the receiving cylinder 705 until the clamping arm 711 is attached to the top of the ceiling. Thus, the clamping arm 711 and the sealing cover body 903 cooperate to clamp the application on the ceiling, thereby installing the application on the ceiling.

[0065] During the installation process of this application, the mounting handle body 701 moves further into the housing 100, and the spring 1000 and the spring 605 are compressed here, which further increases the pressure between the upper radiator 200 and the inner wall of the receiving ring 104, and between the lower radiator 300 and the bottom of the limiting protrusion 102, further preventing the upper radiator 200 and the lower radiator 300 from shaking inside the housing 100.

[0066] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An ultra-wideband ceiling-mounted antenna, comprising a housing (100), characterized in that: The outer casing (100) is provided with an upper radiator (200), a lower radiator (300) and a sealing cover assembly (900) arranged from top to bottom inside the casing (100). A protective tube (400) is provided at the axis of the upper radiator (200) and the lower radiator (300). An RF coaxial jumper (500) is inserted through the protective tube (400). The RF coaxial jumper (500) is fixed to the upper radiator (200) and the lower radiator (300) by welding. An adapter tube (600) is rotatably connected to the outside of the protective tube (400). A tubular mounting handle (700) is sleeved on the outside of the bottom end of the adapter tube (600). The adapter tube (600) and the tubular mounting handle (700) can slide relative to each other along their axis. A lifting assembly (800) is provided between the top end of the adapter tube (600) and the upper radiator (200). A spring (1000) is provided between the top end of the tubular mounting handle (700) and the top wall of the lower radiator (300). The sealing cover assembly (900) is used to drive the tubular mounting handle (700) to move along its axis. An annular flange (101) is fixedly installed on the inner wall of the bottom end of the outer shell (100). A limiting protrusion (102) is fixedly arranged at the bottom of the annular flange (101). The bottom edge of the lower radiator (300) is attached to the bottom of the annular flange (101), and the limiting protrusion (102) is inserted through and inserted into the bottom edge of the lower radiator (300). A receiving ring (104) and an internally threaded tube (105) are fixedly installed on the top wall of the outer shell (100). The axes of the outer shell (100), the receiving ring (104) and the internally threaded tube (105) coincide. An installation window (106) is provided through the circumference of the internally threaded tube (105). The top end of the upper radiator (200) is inserted into the receiving ring (104). The radio frequency coaxial jumper (500) passes through the installation window (106).

2. The ultra-wideband ceiling-mounted antenna according to claim 1, characterized in that: The protective tube (400) includes a lower sleeve (401), an upper sleeve (402) is fixedly installed on the top of the lower sleeve (401), and a hexagonal tube (403) is fixedly installed on the top of the upper sleeve (402). The cross-section of the hexagonal tube (403) is regular hexagonal, and the bottom opening of the internal thread tube (105) is adapted to the cross-section of the hexagonal tube (403). The hexagonal tube (403) is inserted into the internal thread tube (105), and the radio frequency coaxial jumper (500) passes through the lower sleeve (401), the upper sleeve (402) and the hexagonal tube (403).

3. The ultra-wideband ceiling-mounted antenna according to claim 2, characterized in that: The adapter tube (600) includes an upper sleeve (601) sleeved on the outside of the lower sleeve (401), a lower sleeve (602) fixedly installed at the bottom end of the upper sleeve (601), a connecting tube (603) fixedly installed at the top of the upper sleeve (601), a straight groove (604) is opened on the outer wall of the upper sleeve (601), the straight groove (604) is parallel to the axis of the upper sleeve (601), a spring (605) is sleeved on the outside of the lower sleeve (602), the top end of the spring (605) is attached to the bottom of the upper sleeve (601), and the bottom end of the spring (605) is attached to the inner wall of the tubular mounting handle (700).

4. The ultra-wideband ceiling-mounted antenna according to claim 3, characterized in that: The tubular mounting handle (700) includes a mounting handle body (701) sleeved on the outer side of the lower half of the upper embedded tube (601). A slide bar (702) is fixedly installed on the inner wall of the mounting handle body (701). The slide bar (702) is slidably connected in a straight groove (604). A threaded part (703) is provided on the outer wall of the mounting handle body (701). A straight groove (704) is provided on the threaded part (703). The straight groove (704) is parallel to the axis of the mounting handle body (701). A mounting clamp is fixedly installed at the bottom end of the mounting handle body (701). The lower embedded tube (602) passes through the center of the mounting clamp.

5. The ultra-wideband ceiling antenna according to claim 4, characterized in that: The mounting clamping component includes a receiving cylinder (705) fixedly installed at the bottom end of the mounting handle body (701). A turntable (706) is rotatably connected inside the receiving cylinder (705). An inclined groove (709) is arrayed at the bottom of the turntable (706). A sliding groove (710) is arrayed on the circumferential surface of the receiving cylinder (705). A clamping arm (711) is slidably connected inside the sliding groove (710). The clamping arm (711) fits against the bottom of the turntable (706). A sliding column (712) is fixedly installed at the top of the clamping arm (711). The sliding column (712) is slidably connected inside the inclined groove (709). A deflection drive component is provided between the turntable (706) and the lower embedded tube (602).

6. The ultra-wideband ceiling-mounted antenna according to claim 5, characterized in that: The deflection drive includes a series of ball bearings (708) fixed on the inner wall of the turntable (706), and a guide groove (707) is provided on the outer wall of the lower tube (602). The ball bearings (708) are fixedly installed on the inner wall of the turntable (706), and the ball bearings (708) are slidably connected in the guide groove (707). The guide groove (707) includes a straight groove three (7071), an inclined groove two (7072) and a straight groove four (7073). The straight groove three (7071) and the straight groove four (7073) are both parallel to the axis of the lower embedded tube (602). The bottom end of the straight groove three (7071) and the top end of the straight groove four (7073) are connected by the inclined groove two (7072).

7. The ultra-wideband ceiling antenna according to claim 6, characterized in that: The lifting assembly (800) includes a rotating cylinder (801) rotatably connected to the outside of the connecting pipe (603). A torsion spring (802) is fixedly installed between the inner wall of the rotating cylinder (801) and the outer wall of the connecting pipe (603). A second turntable (803) is fixedly installed on the outer wall of the bottom end of the upper sleeve (402). The second turntable (803) is rotatably connected to the inside of the rotating cylinder (801). A push rod (809) is fixedly arranged on the top of the rotating cylinder (801). An external threaded pipe (107) is threadedly connected to the outer side of the internal threaded pipe (105). A support ring (108) is fixedly installed on the outer wall of the bottom end of the external threaded pipe (107). The support ring (108) fits against the top of the rotating cylinder (801). The push rod (809) is slidably connected to the support ring (108). The top array of the turntable 2 (803) is provided with an inclined groove 3 (804), one end of which is connected to an arc groove (805), the center of which coincides with the axis of the turntable 2 (803); The rotating cylinder (801) has an array of sliding grooves (806) on its circumferential surface. A support arm (807) is slidably connected in the sliding groove (806). The support arm (807) is attached to the top of the rotating disk (803). A sliding column (808) is fixedly installed at the bottom of the support arm (807). The sliding column (808) is slidably connected in the inclined groove (804) and the arc groove (805). The support arm (807) is attached to the bottom of the upper radiator (200).

8. The ultra-wideband ceiling antenna according to claim 7, characterized in that: The sealing cover assembly (900) includes an inner liner plate (901) inserted into the bottom end of the outer shell (100). The inner liner plate (901) is attached to the bottom of the lower radiator (300). Limiting grooves (902) are arrayed on the edges of both the inner liner plate (901) and the lower radiator (300). Limiting protrusions (102) are inserted into the limiting grooves (902). A sealing cover body (903) is sleeved on the bottom end of the outer shell (100). An annular groove (904) is opened on the bottom side wall of the sealing cover body (903). A horizontal bar (103) is fixed in an array on the outer wall of the bottom end of the outer shell (100). A mating interface (905) is arrayed on the top of the sealing cover body (903). The mating interface (905) communicates with the annular groove (904). The horizontal bar (103) passes through the mating interface (905) and slides in the annular groove (904). An clearance hole (906) is provided at the center of the sealing cover body (903), and guide strips (907) are fixedly arranged on the inner wall of the clearance hole (906). The guide strips (907) are slidably connected in the straight groove (704). An arched cover (908) is fixedly installed at the center of the inner liner plate (901). Two clamping plates (909) are fixedly installed at the bottom of the arched cover (908). The clamping plates (909) have an L-shaped cross section. Threaded collars are detachably installed inside the two clamping plates (909). The threaded collars are threadedly connected to the threaded part (703).

9. The ultra-wideband ceiling antenna according to claim 8, characterized in that: The threaded collar includes two insert plates (910), which are inserted between two clamping plates (909). A semi-threaded tube (911) is fixedly installed at one end of each of the two insert plates (910), and the two semi-threaded tubes (911) are threadedly connected to the threaded part (703). Each of the insert plates (910) has a square sleeve (912) fixedly installed at its bottom. Both ends of the square sleeve (912) are slidably connected with a retaining strip (913). A spring three (914) is fixedly installed between the retaining strip (913) and the inner wall of the square sleeve (912). Both ends of the two clamping plates (909) are provided with V-shaped grooves (915), and the spring three (914) is engaged in the V-shaped grooves (915).

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