CN111688947A

CN111688947A - Airport landing searchlight

Info

Publication number: CN111688947A
Application number: CN202010702130.5A
Authority: CN
Inventors: 钟坤麟
Original assignee: Guangzhou Baiyun District Meilaike Lighting Equipment Factory
Current assignee: Guangzhou Baiyun District Meilaike Lighting Equipment Factory
Priority date: 2020-07-21
Filing date: 2020-07-21
Publication date: 2020-09-22

Abstract

The invention relates to the technical field of illumination. The utility model provides an airport landing searchlight, including the power supply box, set up the U type frame in power supply box top and set up the searchlight body on U type frame, be equipped with AC/DC conversion equipment in the power supply box, be equipped with the support body between power supply box and the U type frame, be equipped with the cavity in the U type frame, the one end intercommunication power supply box's of support body inside, the other end intercommunication of support body is in the cavity of U type frame, the lateral surface of support body is equipped with cyclic annular support piece, first worm wheel sets up on cyclic annular support piece, first rotation pipe body sets up between first worm wheel and U type frame, and the central axis of first rotation pipe body coincides mutually with the central axis of support body. The invention has the beneficial effects that: not only can realize the shining of all-round angle, need not moreover that the staff expends strength and realizes rotary motion and the every single move motion of a lamp section of thick bamboo to the bearing structure of a lamp section of thick bamboo is compact, operates steadily, can not sway and rock.

Description

Airport landing searchlight

Technical Field

The invention relates to the technical field of illumination, in particular to an airport landing searchlight.

Background

The searchlight is a device, which has a strong light source and a concave mirror capable of intensively projecting light to a specific direction, is used for remote illumination and search, can concentrate an emergent light beam in a small solid angle by virtue of a reflector or a lens to obtain larger light intensity, and is mostly rich in foot stands or movable carriers, and large searchlights even have special trucks as carriers in consideration of the volume, weight and convenient operation of the device. At the present stage, an airport runway can be provided with a large number of searchlights to guide an airplane to land, if a power failure accident happens suddenly, airport personnel are required to drive a vehicle carrying a large-scale searchlight to arrive at the airport runway, and the airplane above the airport runway is guided to land, but the traditional searchlights generally have limitations, the searchlights are limited in irradiation angle, omnidirectional irradiation cannot be realized, the positions of the vehicles need to be continuously adjusted while the irradiation angle is adjusted, in addition, workers manually adjust the irradiation angle of the searchlights, a large amount of physical strength and mental concentration force needs to be consumed, and misoperation is easy to occur.

Chinese patent document No. 201610926182.4 discloses a marine searchlight, which is characterized in that: the LED lamp comprises a lamp barrel, wherein a reflecting bowl, a motor and a movable support are arranged in the lamp barrel, the movable support comprises a ball screw and an L-shaped connecting piece, one end of the L-shaped connecting piece is fixed at the bottom of the reflecting bowl, the other end of the L-shaped connecting piece is in threaded connection with the ball screw, the motor is arranged at the bottom of the lamp barrel, and the ball screw is coaxially connected with an output shaft of the motor; the lamp tube is internally provided with a fixed support and a bulb, the bulb is fixed on a central shaft of the lamp tube through the fixed support, the fixed support comprises a connecting rod and annular connecting pieces which are respectively sleeved at two ends of the bulb, and two ends of the connecting rod are respectively in threaded connection with the annular connecting pieces and the wall of the lamp tube; the top end of the lamp tube is open, and a light-transmitting sheet seals the top end opening of the lamp tube. It has the problems that: the searchlight only supports the pitching motion in the vertical direction, but cannot realize the steering motion in the horizontal direction, so that the irradiation angle is limited, and in addition, when the searchlight is actually used, a worker needs to manually control the pitching motion of the lamp tube, so that the labor intensity is high.

In chinese patent document No. 201220371168.X, an LED searchlight is disclosed, which includes a driving control box, and is characterized in that: the LED lamp comprises a drive control box and is characterized in that the drive control box is a square body, a plurality of pulleys are arranged at the bottom of the drive control box, a first connecting piece and a U-shaped support are arranged above the drive control box, the U-shaped support is connected to the drive control box through the first connecting piece, a second connecting piece and a lamp shade are arranged on the U-shaped support, the lamp shade is connected to a U-shaped support through the second connecting piece, a plurality of LED lamp source bodies and a lamp cover are arranged in the lamp shade, and a plurality of heat dissipation scales which are uniformly distributed are further. It has the problems that: the lamp source body of this searchlight only relies on first connecting piece and U type support to support, turns to the in-process of motion at this searchlight, and first connecting piece and U type support can continuously receive the gravity of the lamp source body and the pulling force that produces when rotatory, lead to the lamp source body to sway easily under the long-time effect of power and rock, and then take place the condition of illumination light skew.

Disclosure of Invention

The invention aims to provide an airport landing searchlight, which can realize irradiation at all angles, does not need workers to expend strength to realize the rotation motion and the pitching motion of a lamp cylinder, and has a compact support structure, stable operation and no swinging and shaking.

In order to achieve the purpose, the invention adopts the following technical scheme:

an airport landing searchlight comprises a power box, a U-shaped frame arranged above the power box and a searchlight body arranged on the U-shaped frame, wherein an alternating current-direct current conversion device is arranged in the power box, a supporting pipe body is arranged between the power box and the U-shaped frame, a cavity is arranged in the U-shaped frame, one end of the supporting pipe body is communicated with the inside of the power box, the other end of the supporting pipe body is communicated in the cavity of the U-shaped frame, the outer side surface of the supporting pipe body is provided with an annular supporting piece, a first worm wheel is arranged on the annular supporting piece, a first rotating pipe body is arranged between the first worm wheel and the U-shaped frame, the central axis of the first rotating pipe body is coincided with the central axis of the supporting pipe body, first bolts for fixing the first rotating pipe body and the first worm wheel together are respectively arranged between one end of the first rotating pipe body and the U-shaped frame, a first bearing is arranged between the inner side, the upper surface of the power box is provided with a shell, a first rotating pipe body is positioned in the shell, a first worm wheel is positioned in the shell, a first motor with a first worm is arranged in the shell, the first worm is meshed with the first worm wheel, the upper surface of the shell is provided with a second bearing, the second bearing is annularly attached to the outer side surface of the first rotating pipe body, an annular pressing piece is arranged between the second bearing and the shell, a second bolt for fixing the annular pressing piece and the shell together is arranged between the annular pressing piece and the shell, a second rotating pipe body is arranged between one side of the searchlight body and the U-shaped frame, one end of the second rotating pipe body is provided with a second worm wheel, the second worm wheel is positioned in the cavity, a second motor with a second worm is arranged in the cavity, the second worm is meshed with the second worm wheel, the other end of the second rotating pipe body is communicated with the interior of the searchlight body, a third rotating pipe body is arranged, one end of the third rotating pipe body is arranged in the cavity, a third bearing is arranged in the cavity, the third bearing is annularly attached to one end of the third rotating pipe body, the other end of the third rotating pipe body is arranged on the other side of the searchlight body, a first electric wire is arranged between the alternating current-direct current conversion device and the searchlight body, and the first electric wire sequentially passes through the power box, the supporting pipe body, the cavity and the second rotating pipe body from the alternating current-direct current conversion device to be connected to the searchlight body.

The power box belongs to the base of the searchlight and can be stably placed on the ground or a carrier, a U-shaped frame is arranged above the power box, the searchlight body is arranged on the U-shaped frame, a cavity is arranged in the U-shaped frame, a supporting pipe body which enables the U-shaped frame and the power box to be mutually communicated is arranged between the U-shaped frame and the power box, an annular supporting piece is arranged on the outer side surface of the supporting pipe body, a first worm wheel is supported by the annular supporting piece and can rotate by taking the supporting pipe body as a central shaft, a first motor with a first worm is used as a power source and is mutually meshed with the first worm wheel, the first motor enables the first worm wheel to rotate through the first worm, first bolts which enable the first worm wheel and the first worm wheel to be fixed together are respectively arranged between one end of the first rotating pipe body and the first worm wheel and between the other end of the first rotating pipe body and the U-shaped frame, and the first worm wheel in rotation enables the U-shaped frame to, the first rotating pipe body can be mutually clamped by the first bearing and the second bearing, the whole structure is compact, the first rotating pipe body is more stable and reliable in the rotating process, the situation that the U-shaped frame swings and shakes is ensured not to occur, the shell body not only ensures that the second bearing is arranged at a certain height through the annular pressing piece, the stability of the rotating first rotating pipe body is ensured, but also plays a role in protecting the first motor with the first worm and the first worm wheel, the transmission work of the first worm and the first worm wheel is prevented from being interfered by the outside, the second motor with the second worm is also used as a power source, the second worm and the second worm wheel are mutually meshed, the second motor rotates the second worm wheel through the second worm, the rotating second worm wheel enables the second rotating pipe body to rotate, the second rotating pipe body is of a driving structure, and the third rotating pipe body is of a driven structure, the third rotating pipe body rotates along with the rotation of the second rotating pipe body, the searchlight body realizes 360-degree pitching motion, the third bearing can enable the contact area between the third rotating pipe body and the U-shaped frame to be increased, the third rotating pipe body is more stable in the rotating process, an alternating current-direct current conversion device is installed inside the power box and provides electric energy for the searchlight body through a first wire, the first wire is connected to the searchlight body through the power box, the supporting pipe body, the cavity and the second rotating pipe body in sequence from the alternating current-direct current conversion device, and an electric energy supply loop between the alternating current-direct current conversion device and the searchlight body is completely built in and cannot be interfered by external influences; the searchlight depends on the transmission work of each part to realize the rotation motion and the pitching motion of the searchlight body, not only realizes the omnidirectional irradiation angle of the searchlight body, but also does not need workers to expend strength during the motion, and the searchlight can stably, easily and accurately guide the aircraft to land.

Drawings

FIG. 1 is a front view of an airport landing searchlight of the present invention.

FIG. 2 is a left side view of an airport landing searchlight of the present invention.

Fig. 3 is a partial sectional view at a in fig. 2.

FIG. 4 is a partial cross-sectional view of a U-shaped frame of a landing searchlight for airports according to the invention, as viewed from the right.

FIG. 5 is a partial cross-sectional view of a U-shaped frame of a landing searchlight for airports according to the invention, viewed from the left.

FIG. 6 is a cross-sectional view of a searchlight body in an airport landing searchlight of the present invention.

FIG. 7 is a partial cross-sectional view of an airport landing searchlight of the present invention from an angle.

FIG. 8 is a partial cross-sectional view of an airport landing searchlight of the present invention from another angle.

Fig. 9 is an enlarged schematic view at B in fig. 8.

Detailed Description

The technical solution in the embodiments of the present invention will be described below with reference to the accompanying drawings.

As shown in fig. 1, 2, 3, 4, 5, 6, 7, 8 and 9, an airport landing searchlight comprises a power supply box 1, a U-shaped frame 2 arranged above the power supply box 1 and a searchlight body 3 arranged on the U-shaped frame 2, wherein an alternating current-direct current conversion device 4 is arranged in the power supply box 1, a supporting tube body 5 is arranged between the power supply box 1 and the U-shaped frame 2, a cavity 6 is arranged in the U-shaped frame 2, one end of the supporting tube body 5 is communicated with the inside of the power supply box 1, the other end of the supporting tube body 5 is communicated with the cavity 6 of the U-shaped frame 2, an annular support member 7 is arranged on the outer side surface of the supporting tube body 5, a first worm wheel 8 is arranged on the annular support member 7, a first rotating tube 9 is arranged between the first worm wheel 8 and the U-shaped frame 2, the central axis of the first rotating tube 9 is coincident with the central axis of the supporting tube body 5, one end of the first rotating tube 9 is, A first bolt 10 for fixing the other end of the first rotating pipe 9 and the U-shaped frame 2 together is respectively arranged between the other end of the first rotating pipe 9 and the U-shaped frame 2, a first bearing 11 is arranged between the inner side surface of the first rotating pipe 9 and the outer side surface of the supporting pipe 5, a shell 12 is arranged on the upper surface of the power box 1, the first rotating pipe 9 is positioned in the shell 12, a first worm wheel 8 is positioned in the shell 12, a first motor 14 with a first worm 13 is arranged in the shell 12, the first worm 13 is meshed on the first worm wheel 8, a second bearing 15 is arranged on the upper surface of the shell 12, the second bearing 15 is annularly attached on the outer side surface of the first rotating pipe 9, an annular pressing piece 16 is arranged between the second bearing 15 and the shell 12, a second bolt 17 for fixing the annular pressing piece 16 and the shell 12 together is arranged between one side of the searchlight body 3 and the U-shaped frame 2, a second rotating pipe 18 is arranged between one end of the second rotating pipe 18, the second worm wheel 19 is located in the cavity 6, the second motor 21 with the second worm 20 is arranged in the cavity 6, the second worm 20 is meshed with the second worm wheel 19, the other end of the second rotating pipe 18 is communicated with the interior of the searchlight body 3, a third rotating pipe 22 is arranged between the other side of the searchlight body 3 and the U-shaped frame 2, one end of the third rotating pipe 22 is arranged in the cavity 6, a third bearing 23 is arranged in the cavity 6, the third bearing 23 is attached to one end of the third rotating pipe 22 in a surrounding mode, the other end of the third rotating pipe 22 is arranged on the other side of the searchlight body 3, a first electric wire 24 is arranged between the alternating current-direct current conversion device 4 and the searchlight body 3, and the first electric wire 24 sequentially passes through the power box 1, the supporting pipe 5, the cavity 6 and the second rotating pipe 18 from the alternating current-direct current conversion device 4 to be connected to.

The power box 1 belongs to the base of the searchlight and can be stably placed on the ground or a carrier, a U-shaped frame 2 is arranged above the power box 1, a searchlight body 3 is arranged on the U-shaped frame 2, a cavity 6 is arranged in the U-shaped frame 2, a supporting tube body 5 which enables the U-shaped frame 2 and the power box 1 to be mutually communicated is arranged between the U-shaped frame 2 and the power box 1, an annular supporting piece 7 is arranged on the outer side surface of the supporting tube body 5, a first worm wheel 8 is supported by the annular supporting piece 7 and can rotate by taking the supporting tube body 5 as a central shaft, a first motor 14 with a first worm 13 is used as a power source, the first worm 13 is mutually meshed with the first worm wheel 8, the first motor 14 enables the first worm wheel 8 to rotate through the first worm 13, first bolts 10 which enable the first worm wheel 8 and the first rotating tube 9 to be fixed together are respectively arranged between one end of the first rotating tube 9 and the first worm wheel 8, the first worm wheel 8 in rotation enables the U-shaped frame 2 to realize 360-degree rotation movement in the horizontal direction through the first rotating pipe body 9, the first bearing 11 and the second bearing 15 can mutually clamp the first rotating pipe body 9, the whole structure is compact, the first rotating pipe body 9 is more stable and reliable in the rotation process, the situation that the U-shaped frame 2 shakes and shakes is guaranteed not to occur, the shell 12 not only enables the second bearing 15 to be arranged at a certain height through the annular pressing piece 16 and the second bolt 17, the stability of the first rotating pipe body 9 in rotation is guaranteed, but also the first motor 14 with the first worm 13 and the first worm wheel 8 are protected, the transmission work of the first worm 13 and the first worm wheel 8 is prevented from being interfered by the outside, the second motor 21 with the second worm 20 is also used as a power source, and the second worm 20 and the second worm wheel 19 are mutually meshed, the second worm wheel 19 is rotated by the second motor 21 through the second worm 20, the second rotating pipe 18 is rotated by the rotating second worm wheel 19, the second rotating pipe 18 is of a driving structure, the third rotating pipe 22 is of a driven structure, the third rotating pipe 22 rotates along with the rotation of the second rotating pipe 18, the searchlight body 3 realizes 360-degree pitching motion, the third bearing 23 can increase the contact area between the third rotating pipe 22 and the U-shaped frame 2, the third rotating pipe 22 is more stable in the rotating process, the alternating current-direct current conversion device 4 is installed inside the power box 1, the alternating current-direct current conversion device 4 provides electric energy for the searchlight body 3 through the first electric wire 24, the first electric wire 24 is connected to the searchlight body 3 through the power box 1, the supporting pipe 5, the cavity 6 and the second rotating pipe 18 from the alternating current-direct current conversion device 4 in sequence, the electric energy supply loop between the alternating current-direct current conversion device 4 and the searchlight body 3 is completely built in and cannot be interfered by external influence; this searchlight relies on the transmission work of each part to realize the rotary motion and the pitching motion of searchlight body 3, not only realizes the omnidirectional of searchlight body 3 and shines the angle, need not the staff and expend strength during the motion moreover, and this searchlight can be stable, light and accurately guide the aircraft landing again.

The searchlight body 3 is provided with a lamp tube 25, one end of the lamp tube 25 is provided with a front cover 26, the front cover 26 is provided with a light transmitting lens 27, the front cover 26 is internally provided with a polarizer 28, the other end of the lamp tube 25 is provided with a mounting plate 29, a third motor 31 with a first transmission wheel 30 is arranged on the outer side surface of the mounting plate 29, a focusing mechanism 32 is arranged in the mounting plate 29, the head part of the focusing mechanism 32 is positioned on the inner side surface of the mounting plate 29, the tail part of the focusing mechanism 32 is positioned on the outer side of the mounting plate 29, the head part of the focusing mechanism 32 is provided with a groove 33, the inner wall of the groove 33 is provided with a side groove 34, a focusing nut 36 with a second transmission wheel 35 is arranged on the tail part of the focusing mechanism 32, a fourth bearing 37 is arranged between the focusing nut 36 and the focusing mechanism 32, a focusing screw 38 is arranged in the focusing nut, a rod body 39 is arranged in the groove 33, one end of the rod body 39 is arranged on the focusing screw 38, the other end of the rod body 39 is arranged in the side groove 34, a transmission belt 40 is arranged between the first transmission wheel 30 and the second transmission wheel 35, a concave mirror 41 is arranged in the lamp tube 25, the inner concave surface of the concave mirror 41 corresponds to the polarizer 28, a support 42 is arranged in the lamp tube 25, a first circular ring 43 is arranged on the support 42, a spherical xenon bulb 44 is arranged in the lamp tube 25, a connecting nut 45 for connecting the spherical xenon bulb 44 and the focusing screw 38 is arranged between one end of the spherical xenon bulb 44 and the focusing screw 38, and the other end of the spherical xenon bulb 44 penetrates through the first circular ring 43 and is connected to the first electric wire.

In this embodiment, a spherical xenon bulb 44 is arranged in the lamp tube 25, the first electric wire 24 is connected to the other end of the spherical xenon bulb 44, the ac/dc converter 4 supplies power to the spherical xenon bulb 44 through the first electric wire 24, the spherical xenon bulb 44 emits light, the light is reflected to the polarizer 28 through the concave mirror 41, the light polarization principle of the polarizer 28 is utilized to filter out a plurality of irregular lights, only one direction of light passes through, when the filtered light is emitted from the transparent mirror 27 on the front cover 26, a light column capable of long-distance irradiation is formed, the light column can provide guiding function for the plane in the air, the other end of the lamp tube 25 is provided with the mounting plate 29, the third motor 31 with the first transmission wheel 30 and the focusing mechanism 32 are both arranged on the mounting plate 29, the head of the focusing mechanism 32 is provided with the groove 33, the focusing nut 36 with the second transmission wheel 35 is arranged at the tail of the focusing mechanism 32, a fourth bearing 37 is arranged between the focusing nut 36 and the focusing mechanism 32, the first driving wheel 30 can be rotated by the third motor 31, the focusing nut 36 with the second driving wheel 35 can be rotated by the first driving wheel 30 through the driving belt 40, because the focusing screw 38 is arranged in the focusing nut 36, the focusing screw 38 and the focusing nut 36 are in a threaded relationship, one end of the focusing screw 38 is arranged in the groove 33, a connecting nut 45 for connecting the spherical xenon bulb 44 and the focusing screw 38 is arranged between one end of the spherical xenon bulb 44 and the focusing screw 38, the focusing screw 38 is clamped on the side groove 34 through a rod body 39, a bracket 42 is arranged in the lamp tube 25, the other end of the spherical xenon bulb 44 is supported by the bracket 42, therefore, when the focusing nut 36 with the second driving wheel 35 is rotated, the focusing screw 38 cannot rotate along with the focusing nut 36 due to the blockage of the rod body 39, the focusing nut 36 will move back and forth due to the different rotation directions of the second rotating wheel 35, the rod body 39 will move along the track of the side groove 34, and further the focusing screw 38 will push or pull one end of the spherical xenon bulb 44, the other end of the spherical xenon bulb 44 will slide in the first circular ring 43 on the bracket 42, so that the spherical xenon bulb 44 is integrally close to or away from the concave mirror 41, the reflection effect of the light emitted by the spherical xenon bulb 44 on the concave mirror 41 is controlled, and further a light column with different fineness is generated, which is convenient for a pilot in an airplane to find the light column guiding the airplane to land.

The lateral surface of mounting panel 29 is equipped with backup pad 46, and backup pad 46 and mounting panel 29 mutually perpendicular are equipped with support piece 47 between backup pad 46 and the focusing screw 38, and the one end of support piece 47 is passed through third bolt 48 and is fixed on backup pad 46, and the other end of support piece 47 is equipped with second ring 49, and the other end of focusing screw 38 passes second ring 49, and is equipped with dog 50. The supporting plate 46 is disposed outward from the outer side of the mounting plate 29, and supports the other end of the focus screw 38 through the supporting member 47, so that the focus screw 38 is more stable when pushing or pulling the xenon bulb 44, during the process of moving the focus screw 38 back and forth, the focus screw 38 will pass back and forth in the second ring 49, when the focus screw 38 pushes the xenon bulb 44 inward and moves the xenon bulb 44 a certain distance, the stopper 50 disposed at the other end of the focus screw 38 will abut against the second ring 49, so as to prevent the focus screw 38 from moving further inward, conversely, after the focus screw 38 pulls the xenon bulb 44 outward and moves the xenon bulb 44 a certain distance, the first wire 24 will prevent the other end of the xenon bulb 44 from sliding out of the first ring 43, so as to prevent the focus screw 38 from moving outward, which is designed to limit the moving distance of the xenon bulb 44, prevent one end of the bulb 44 from being separated from the supporting point, and prevent the light of the bulb 44 from being abnormally irradiated.

The other end of the lamp tube 25 is provided with a rear cover 51, the lower side surface of the rear cover 51 is provided with a first steel mesh 52 leading to the inside of the lamp tube, a first exhaust fan 53 is arranged in the mounting plate 29, the side surface of the lamp tube 25 is provided with a plurality of cooling air inlets 54, the cooling air inlets 54 are provided with blocking covers 55, a second steel mesh 56 is arranged between the blocking covers 55 and the cooling air inlets 54, and the outer edges of the cooling air inlets 54 are provided with baffle plates 57. The structural design ensures that the air in the lamp cylinder 25 is pumped out by the first exhaust fan 53, the air in the lamp cylinder 25 carries the heat generated by the spherical xenon bulb 44 and is then exhausted to the outside through the first steel mesh 52 on the rear cover 51, and the outside fresh air enters the lamp cylinder 25 through the second steel mesh 56 and the cooling air inlet 54 in sequence to cool the lamp cylinder 25, so that the damage to other components caused by the overhigh heat in the lamp cylinder 25 is avoided; when the searchlight is needed to be used in rainy days, because the first steel mesh 52 is arranged on the lower side surface of the rear cover 51, rainwater cannot flow into and accumulate inside the rear cover 51 through the first steel mesh 52, so as to avoid the short circuit fault of the first exhaust fan 53 caused by rainwater, the blocking cover 55 also plays a role of rain blocking, so as to prevent rainwater from entering the inside of the lamp tube 25 through the cooling air inlet 54, when the surface direction of the blocking cover 55 is downward due to the pitching motion of the searchlight body 3, even if the rainwater enters the inside of the blocking cover 55 through the first steel mesh 52, the rainwater can be blocked by the baffle 57 on the cooling air inlet 54, then flows along the channel formed between the baffle 57 and the cooling air inlet 54 under the action of gravity and converges to the concave part below the blocking cover 55, when the rainwater accumulates to the height of the first steel mesh 52, the rainwater flows out through the first steel mesh 52, and the height of the cooling air inlet 54 is higher than the height of the first steel mesh 52, therefore, rain water cannot enter the lamp tube 25, and the spherical xenon bulb 44 is prevented from short-circuit failure.

The trigger 58 is arranged on the first wire 24, the trigger 58 is located in the cavity 6, the fifth bearing 59 is annularly arranged on the second rotating pipe body 18, and the fifth bearing 59 is located between the U-shaped frame 2 and the second worm gear 19. The trigger 58 can improve the output voltage of the ac-dc converter 4 instantly, and then starts the spherical xenon bulb 44 requiring high voltage to perform high-voltage ignition, so that the ac-dc converter 4 does not need to continuously output high-voltage electric energy, and the stability of the whole circuit of the searchlight is ensured.

The searchlight bodies 3 are provided in two, the other of the two searchlight bodies 3 is arranged between one of the two searchlight bodies 3 and the other end of the third rotary tube body 22, the first electric wire 24 and the trigger 58 are respectively provided in two, and the other of the two first electric wires 24 sequentially passes through the power supply box 1, the support tube body 5, the cavity 6 and the third rotary tube body 23 from the ac/dc conversion device 4 and is correspondingly connected to the other of the two searchlight bodies 3. The searchlight bodies 3 are arranged in two, so that an illuminating light column is added, and a pilot on the airplane can conveniently find and land along with the guidance of the light column.

The upper surface of power supply box 1 is equipped with draw-in groove 60, and the one end of support body 5 is equipped with turn-ups 61, and turn-ups 61 is located draw-in groove 60, is equipped with the fourth bolt 62 that makes both fix together between turn-ups 61 and the draw-in groove 60, and the other end of support body 5 is equipped with external screw thread 63, is equipped with joint nut 64 in the cavity 6, and joint nut 64 spiro union is equipped with radial positioning circle 65 on the other end of support body 5 between first rotation body 9 and the second bearing 15. The clamping groove 60 and the flange 61 are mutually clamped together and fixed together by a fourth bolt 62, the power box 1 and the supporting tube 5 are fixed together by a combined structure of the clamping groove 60 and the flange 61, the contact area between the power box 1 and the supporting tube 5 is increased, the bending deformation of the supporting tube 5 caused by the shearing force of the U-shaped frame 2 is avoided, the supporting tube 5 is mutually clamped with the U-shaped frame 2 by a clamping nut 64, and when the searchlight is placed on a running vehicle, the structural design can prevent the supporting tube 5 from being separated from the U-shaped frame 2 due to the vibration generated by the running of the vehicle, so that the power box 1, the supporting tube 5 and the U-shaped frame 2 are tightly fixed together; in the process of part assembly, can embolia radial positioning ring 65 on the lateral surface of first rotation tube 9 earlier, overlap second bearing 15 on the lateral surface of radial positioning ring 65 again, be convenient for install second bearing 15 on first rotation tube 9 fast, make first rotation tube 9 and second bearing 15 paste more tightly, avoid first rotation tube 9 to make U type frame 2 wholly rock because of taking place radial offset when rotating.

The bottom surface of the power box 1 is provided with a cold air chamber 66 which protrudes inwards and is communicated with the outside, a cold air chamber port 67 faces downwards to correspond to the ground, the side surface of the cold air chamber 66 is provided with a third steel mesh 68, the AC-DC conversion device 4 is positioned on the upper surface of the cold air chamber 66, the AC-DC conversion device 4 is provided with a heat dissipation fan 69 and a control circuit board 70, the orientation of the heat dissipation fan 69 is the same as that of the third steel mesh 68, the front surface of the power box 1 is provided with an exhaust pipeline 71, the current and voltage detection device 72 is arranged on the outer side surface of the power box 1, a second wire 73 is arranged between the current and voltage detection device 72 and the AC-DC conversion device 4, the control switch 74 is arranged on the outer side surface of the power box 1, the inner side surface of the power box 1 is provided with a second exhaust fan. Under the action of the second exhaust fan 75 continuously exhausting the air inside the power box 1, the low-temperature air outside the power box 1 enters the power box 1 through the cold air chamber port 67, the cold air chamber 66 and the third steel mesh 68 in sequence, then the low-temperature air enters the interior from one side of the ac/dc conversion device 4 under the suction action of the heat dissipation fan 69, and in the process that the low-temperature air passes through the ac/dc conversion device 4, the low-temperature air absorbs the heat generated in the ac/dc conversion device 4 and then becomes hot air, and is exhausted from the other side of the ac/dc conversion device 4, then is absorbed by the second exhaust fan 75, and is exhausted outside the power box 1 through the exhaust duct 71, so as to realize the internal cooling of the power box 1, the air outlet of the exhaust duct 71 faces downwards to avoid the hot air from directly blowing to the body of a worker, and prevent the worker from being burnt by the hot air, control switch 74 can realize the rotary motion control of U type frame 2, the pitching motion control of searchlight body 3, the opening of spherical xenon bulb 44 is closed, control switch 74's control operation all converts and sends the operating command to corresponding part through control circuit board 70, current and voltage detection device 72 is used for measuring the current and the voltage that produce when the alternating current-direct current conversion device 4 is worked at present, the staff can monitor the behavior of alternating current-direct current conversion device 4 through current and voltage detection device 72, when unstable discharge appears in alternating current-direct current conversion device 4, make things convenient for the staff in time to make counter-measures.

The bottom of the power box 1 is provided with a supporting leg 76, the inner concave surface of the U-shaped frame 2 and the outer side surface of the U-shaped frame 2 are respectively provided with a pressing buckle structure 77, and the upper surface of the shell 12 and the outer side surface of the lamp tube 25 are respectively provided with a clamping piece 78 matched with the pressing buckle structure 77. The supporting legs 76 elevate the power box 1 so that the bottom of the power box 1 is not in direct contact with the ground, and if the ground where the searchlight is placed is uneven, the bottom of the power box 1 can be effectively prevented from being abraded; when need not to use this searchlight or before this searchlight of transport reachs the destination, between lateral surface and the casing 12 of U type frame 2, buckle structure 77 and joint 78's integrated design is pressed to the accessible respectively between the interior concave surface of U type frame 2 and the lateral surface of lamp section of thick bamboo 25 and is fixed together, press buckle structure 77 only need press gently just can be in the same place with joint 78 joint, press once more and then can break away from joint 78, easy operation is swift again, this integrated design can avoid U type frame 2 to take place rotary motion because of external force factor, and avoid searchlight body 3 to take place luffing motion because of external force factor, effectively prevent to lead to the drive part to damage because of the forced drive of external force.

The two sides of the U-shaped frame 2 are respectively provided with a side cover 79, the concave surface of the U-shaped frame 2 is provided with a cover plate 80, the side surface of the cover plate 80 is provided with an inclined plate 81, and buckles 82 are respectively arranged between the front cover 26 and the rear cover 51 and the lamp tube 25. The side covers 79 on the two sides can be detached from the U-shaped frame 2 and can be covered on the U-shaped frame 2, so that workers can maintain the trigger 58 in the cavity 6, the third bearing 23 and the second motor 21 with the second worm 20, the cover plate 80 can be combined with the U-shaped frame 2 into a whole and can be separated independently, the workers can arrange the first electric wires 24 for connecting the power box 1 and the searchlight body 3, the front cover 26 and the rear cover 51 are fixed on the lamp tube 25 through the buckles 82, the detaching and installing operations are simple and rapid, the workers can maintain and replace various components installed on the lamp tube 25, the inclined plates 81 on the side surfaces of the cover plate 80 can shield the upper surface of the shell 12, the rain shielding effect is achieved, and rainwater is prevented from being accumulated on the upper surface of the shell 12.

Claims

1. An airport landing searchlight comprises a power supply box (1), a U-shaped frame (2) arranged above the power supply box (1) and a searchlight body (3) arranged on the U-shaped frame (2), and is characterized in that an alternating current-direct current conversion device (4) is arranged in the power supply box (1), a supporting pipe body (5) is arranged between the power supply box (1) and the U-shaped frame (2), a cavity (6) is arranged in the U-shaped frame (2), one end of the supporting pipe body (5) is communicated with the inside of the power supply box (1), the other end of the supporting pipe body (5) is communicated in the cavity (6) of the U-shaped frame (2), an annular supporting piece (7) is arranged on the outer side surface of the supporting pipe body (5), a first worm wheel (8) is arranged on the annular supporting piece (7), a first rotating pipe body (9) is arranged between the first worm wheel (8) and the U-shaped frame (2), and the central axis of the first rotating pipe body (9) is coincided with the, first bolts (10) for fixing the first rotating pipe body (9) and the first worm wheel (8) and the other end of the first rotating pipe body (9) and the U-shaped frame (2) are respectively arranged between the first rotating pipe body (9) and the U-shaped frame (2), a first bearing (11) is arranged between the inner side surface of the first rotating pipe body (9) and the outer side surface of the supporting pipe body (5), a shell (12) is arranged on the upper surface of the power box (1), the first rotating pipe body (9) is positioned in the shell (12), the first worm wheel (8) is positioned in the shell (12), a first motor (14) with a first worm (13) is arranged in the shell (12), the first worm (13) is meshed on the first worm wheel (8), a second bearing (15) is arranged on the upper surface of the shell (12), the second bearing (15) is annularly pasted on the outer side surface of the first rotating pipe body (9), and an annular pressing piece (16) is arranged between the second bearing (15) and the shell (12), a second bolt (17) for fixing the annular pressing piece (16) and the shell (12) together is arranged between the annular pressing piece (16) and the shell (12), a second rotating pipe body (18) is arranged between one side of the searchlight body (3) and the U-shaped frame (2), a second worm wheel (19) is arranged at one end of the second rotating pipe body (18), the second worm wheel (19) is positioned in the cavity (6), a second motor (21) with a second worm (20) is arranged in the cavity (6), the second worm (20) is meshed on the second worm wheel (19), the other end of the second rotating pipe body (18) is communicated with the inside of the searchlight body (3), a third rotating pipe body (22) is arranged between the other side of the searchlight body (3) and the U-shaped frame (2), one end of the third rotating pipe body (22) is arranged in the cavity (6), a third bearing (23) is arranged in the cavity (6), and the third bearing (23) is annularly attached to one end of the third rotating pipe body (22), the other end of the third rotating pipe body (22) is arranged on the other side of the searchlight body (3), a first electric wire (24) is arranged between the alternating current-direct current conversion device (4) and the searchlight body (3), and the first electric wire (24) is connected to the searchlight body (3) through the power box (1), the supporting pipe body (5), the cavity (6) and the second rotating pipe body (18) in sequence from the alternating current-direct current conversion device (4).

2. The airfield landing searchlight of claim 1, wherein the searchlight body (3) is provided with a lamp barrel (25), one end of the lamp barrel (25) is provided with a front cover (26), the front cover (26) is provided with a light transmitting mirror (27), the front cover (26) is provided with a polarizer (28), the other end of the lamp barrel (25) is provided with a mounting plate (29), a third motor (31) with a first driving wheel (30) is arranged on the outer side of the mounting plate (29), a focusing mechanism (32) is arranged in the mounting plate (29), the head of the focusing mechanism (32) is arranged on the inner side of the mounting plate (29), the tail of the focusing mechanism (32) is arranged on the outer side of the mounting plate (29), the head of the focusing mechanism (32) is provided with a groove (33), the inner wall of the groove (33) is provided with a side groove (34), a focusing nut (36) with a second driving wheel (35) is arranged on the tail of, a fourth bearing (37) is arranged between the focusing nut (36) and the focusing mechanism (32), a focusing screw (38) is arranged in the focusing nut (36), one end of the focusing screw (38) is arranged in a groove (33), the other end of the focusing screw (38) penetrates through a second transmission wheel (35), a rod body (39) is arranged in the groove (33), one end of the rod body (39) is arranged on the focusing screw (38), the other end of the rod body (39) is arranged in a side groove (34), a transmission belt (40) is arranged between the first transmission wheel (30) and the second transmission wheel (35), a concave mirror (41) is arranged in the lamp tube (25), the inner concave surface of the concave mirror (41) corresponds to the polarizer (28), a support (42) is arranged in the lamp tube (25), a first circular ring (43) is arranged on the support (42), a spherical xenon bulb (44) is arranged in the lamp tube (25), and a connecting nut which enables the focusing screw and the focusing screw (38) to be connected together is arranged between one end of the spherical xenon (45) The other end of the bulb (44) passes through the first ring (43) and is connected to the first wire (24).

3. The airfield landing searchlight of claim 2, wherein the outer side of the mounting plate (29) is provided with a support plate (46), the support plate (46) is perpendicular to the mounting plate (29), a support member (47) is arranged between the support plate (46) and the focusing screw (38), one end of the support member (47) is fixed on the support plate (46) through a third bolt (48), the other end of the support member (47) is provided with a second ring (49), and the other end of the focusing screw (38) passes through the second ring (49) and is provided with a stop block (50).

4. The airfield searchlight of claim 3, wherein the other end of the lamp barrel (25) is provided with a rear cover (51), the lower side surface of the rear cover (51) is provided with a first steel mesh (52) leading to the inside of the rear cover, a first exhaust fan (53) is arranged in the mounting plate (29), the side surface of the lamp barrel (25) is provided with a plurality of cooling air inlets (54), a blocking cover (55) is arranged on the cooling air inlets (54), a second steel mesh (56) is arranged between the blocking cover (55) and the cooling air inlets (54), and the outer edge of the cooling air inlets (54) is provided with a blocking plate (57).

5. The airfield landing searchlight of claim 4, wherein the first wire (24) is provided with a trigger (58), the trigger (58) is positioned in the cavity (6), the second rotating tube (18) is provided with a fifth bearing (59) in a surrounding manner, and the fifth bearing (59) is positioned between the U-shaped frame (2) and the second worm gear (19).

6. The airport landing searchlight according to claim 5, characterized in that there are two searchlight bodies (3), the other of the two searchlight bodies (3) is disposed between one of the two searchlight bodies (3) and the other end of the third rotary tube (22), there are two first wires (24) and two triggers (58) each, and the other of the two first wires (24) passes through the power supply box (1), the support tube (5), the cavity (6), and the third rotary tube (23) from the AC/DC converter (4) in sequence and is correspondingly connected to the other of the two searchlight bodies (3).

7. The airfield landing searchlight according to claim 6, wherein the power supply box (1) is provided with a clamping groove (60) on the upper surface, one end of the support tube (5) is provided with a flange (61), the flange (61) is positioned in the clamping groove (60), a fourth bolt (62) for fixing the flange (61) and the clamping groove (60) together is arranged between the flange (61) and the clamping groove, the other end of the support tube (5) is provided with an external thread (63), a clamping nut (64) is arranged in the cavity (6), the clamping nut (64) is screwed on the other end of the support tube (5), and a radial positioning ring (65) is arranged between the first rotating tube (9) and the second bearing (15).

8. The airfield landing searchlight of claim 7, wherein the bottom surface of the power supply box (1) is provided with a cold air chamber (66) which protrudes inwards and is communicated with the outside, a cold air chamber port (67) is downward corresponding to the ground, the side surface of the cold air chamber (66) is provided with a third steel mesh (68), the AC/DC converter (4) is positioned on the upper surface of the cold air chamber (66), the AC/DC converter (4) is provided with a heat dissipation fan (69) and a control circuit board (70), the orientation of the heat dissipation fan (69) is the same as that of the third steel mesh (68), the front surface of the power supply box (1) is provided with an exhaust duct (71), the current and voltage detection device (72) is arranged on the outer side surface of the power supply box (1), a second wire (73) is arranged between the current and voltage detection device (72) and the AC/DC converter (4), and the control switch (74) is arranged on the outer side, the inner side surface of the power supply box (1) is provided with a second exhaust fan (75), the second exhaust fan (75) corresponds to the air inlet of the exhaust pipeline (71), and the air outlet of the exhaust pipeline (71) faces downwards.

9. The airfield searchlight of claim 8, wherein the power box (1) is provided at the bottom with support legs (76), the U-shaped frame (2) is provided at the inner concave surface and the outer side surface of the U-shaped frame (2) with press-fit structures (77), and the housing (12) is provided at the upper surface and the lamp barrel (25) are provided at the outer side surface with snap-fit members (78) which are engaged with the press-fit structures (77).

10. The airfield searchlight of claim 9, wherein the U-shaped frame (2) is provided with side covers (79) on both sides, the U-shaped frame (2) is provided with a cover plate (80) on the concave surface, the cover plate (80) is provided with a sloping plate (81) on the side surface, and the front cover (26) and the rear cover (51) are respectively provided with a buckle (82) with the lamp tube (25).