KR200219587Y1 - Pulley type up-down polygon telescoping masts - Google Patents

Abstract

The tubes t3, t4 and t5 of the third stage or more of the present invention are attached to the bottom of the tube tn and to the bottom of the fleece 13 and tn-2 tube which attach the tube tn-1 to the top of the tube tn-1. By attaching and attaching as an interlocking wire rope 15 via a fleece 14, the tube tn-1 can be raised by the distance of the tube tn-1 relative to the tube tn-1 during the tube tn-1 lifting operation. The first stage tube divides the laminated tube accommodating chamber 21 and the transmission chamber 22 into which the second stage tube is accommodated by the support plate 23, and the rotational longitudinal axis 32 is formed in the number 31 of the support plate 23. The horizontal drive shafts 36 are respectively provided in the number of shafts of the transmission chamber, and the lifting nut 34 attached to the bottom support plate 33 of the second stage tube t2 is bitten by the lifting screw 35 of the longitudinal shaft 32. And the driven bevel gear 37 at the lower end of the vertical shaft is bitten by the driving bevel gear 38 on the drive shaft 36, and the drive shaft 36 is driven in conjunction with the drive motor 40 or the handle 50.Linear expression polygon is a telescoping mast.

Description

Pulley type polygon telescoping mast {PULLEY TYPE UP-DOWN POLYGON TELESCOPING MASTS}

This design relates to a pulley polygonal telescoping mast.

Conventional telescoping masts (main masts) are mainly mobile equipment mounted on a vehicle, so-called lifters or antenna poles, and are mainly equipped with applications such as transmitting / receiving antennas of broadcast relay vehicles, photographing cameras or observation equipment, and the like on the top tube, usually on the ground. Used to float 5 to 20m high.

Conventional telescoping masts are assembled with 5-9 layers of tubes with a maximum diameter of 70 ~ 200mm and a length of 2m, and assembled to expand and contract.The inside of pneumatic cylinder, hydraulic cylinder, rack gear or coil spring The built-in driving device is used to expand the multiple overlapping tubes in a stretched state or to drive them in a contracted state so that the application device mounted on the top can be raised above the ground.

Conventional pneumatic or hydraulic cylinder-driven telescope masts are expensive to manufacture, have heavy loads on the product, and often have problems with the seal packing of the mast drive, and coil spring-driven telescopes. Mast was difficult to manufacture due to the complicated structure of the gear and the spring assembly, at the same time, frequent maintenance, and had a short life problem. In addition, the conventional telescope mast device is a structure in which the tube at each end of the mast can be freely rotated by forming a stretchable mast body by overlapping the circular tube, the longitudinal guide jaw and the longitudinal direction of the mast tube to prevent free rotation of the mast end As the grooves are combined, the guide jaws and the assembly grooves of the guide grooves are severely worn out and breakdowns are frequent.

This invention is designed to improve the above problems, by forming a flexible mast by overlapping polygonal tubes such as hexagon or square to prevent free rotation of each end of the telescope mast, screw installed on the first end of the mast tube As the lifter, the second stage tube is driven up and down, and the second stage or more tubes are assembled by connecting the pulley and the driving wire rope so as to be linked up or down in conjunction with the operation of the tube of the second stage. It is an object of the present invention to provide a pulley polygonal telescoping mast that simplifies the manufacturing process and simplifies the expansion and contraction operation of the mast so that the failure is small and the expansion operation is stabilized and the service life is extended.

1 is a perspective view of a contracted state of this design mast

Figure 2 is a conceptual diagram of the operation state of the devised mast

Figure 3 is a conceptual diagram of the contracted state operation of the devised mast

Figure 4 is a cross-sectional view of the pliers and wire mounting state of this design mast

Fig. 5 is a cross-sectional configuration diagram of the lifter of this design mast.

6 is a control circuit diagram of the present invention.

<Description of Drawing Major Symbols>

11, 12: slider support 13, 14: fleece 15: wire rope 23: support plate 30: lifter 32: longitudinal axis 34: nut 35: screw 36: drive shaft 69: remote control

This invention is described in detail according to the accompanying drawings as follows.

This design involves multistage telescopic tubes, e.g., 2nd, 3rd, 4th, and topmost telescopic tubes (t2) in telescope masts, specifically base tubes (t1) which are installed as flanges on a vehicle or flat floor. , t3, t4, t5 are assembled together, and the application device A can be mounted on the uppermost tube t5, and a lubricity slider support such as a teflon resin (teflon resin) is formed on the outer edge of the flexible tubes t2 to t5. 11) and the lubricity slider support 12 is attached to the upper inner edge of the expansion tube t1 to t4 below the base tube t1 so that the telescope tubes t1 to t5 can be stretched. In a telescope mast in which a telescopic drive device is built into a base tube t1 and the telescopic tubes t2 to t5 are telescopically driven up and down on the base tube t1.

The base tube t1 and the flexible tubes t2, t3, t4, and t5 were constructed by overlapping polygonal tubes t such as squares, pentagons, or hexagons.

The telescope mast of the present invention uses a polygonal tube (t) to prevent free rotation of the flexible tubes at each end without adding a separate device.

A lifter 30 is installed in the inner space of the base tube t1 to raise or lower the second stage tube t2.

Tubes tn3, t4, t5 of the third or more stages tn are the pleats 13 attached to the bottom of the tube tn and the tube tn-1 on the top of the tube tn-1 and the pleats attached to the bottom of the tn-2 tube ( 14) by attaching as an interlocking wire rope 15 through the tube tn-1 in the ascending operation of the tube tn-1 relative to the tube tn-1 as the rising distance of the tube tn was configured to rise.

In an embodiment the tube tn is any one of t3, t4, t5.

In order to install the wire rope 15 and the pleats 13 for interlocking the tubes, gap spaces a, b, and c are formed as slider supports 11 and 12 between the tubes. In the embodiment telescope mast with a maximum diameter of 150 mm, the thickness of the pleats installed in the clearance spaces a, b, and c according to the weight of the load applied to the pleats and the wire ropes at each end is 7 mm and 5 mm, respectively. The diameter of the wire rope was 5.5 mm, 3.5 mm, and 1.5 mm.

In order to install the wire rope 15, the support plate 23 and the like, the rope guide hole 19 is installed.

The plies 13 installed in the gap spaces a, b, and c were attached in close contact with the inner wall plane of the polygonal tube.

The lifter is installed between the first end tube and the second end tube to raise or lower the second end tube within the lifter drive distance h.

The lifter may be variously configured as a hydraulic cylinder for driving a second stage tube, a rack gear type lifter, a winch lifter using a wire, and the like.

The lifter of this invention embodiment is a screw type lifter which interlocks the longitudinal axis by the rotational force of the drive shaft and raises or lowers the second stage tube as the screw on the longitudinal axis and the screw bitten by the screw. Screw-type lifters are safe lifters because they prevent reverse movement under the load of telescopic tubes.

As a configuration of the lifter of the above embodiment, the first end tube divides the laminated tube accommodation chamber 21 and the transmission chamber 22 into which the second end tube is accommodated by the support plate 23, and the number of shafts of the support plate 23 is reduced. The vertical axis 32 is provided with the lifting vertical shaft 32 attached to the rotary vertical shaft 32 at the number of shafts of the transmission chamber, and the lifting nut 34 attached to the support plate 33 at the bottom of the second stage tube t2. ), And the driven bevel gear 37 at the lower end of the longitudinal axis is bitten by the driving bevel gear 38 on the drive shaft 36, and the drive shaft 36 is driven by the drive motor 40 or It is configured to drive in conjunction with the handle (50).

Therefore, when the drive shaft 36 is driven by the handle or the reduction motor, the driving force is transmitted to the longitudinal shaft 32 through the bevel gears 38 and 37 to be driven, and the screw 35 on the longitudinal shaft 32 moves upward of the nut 34. Alternatively, the second stage tube t2 may be raised or lowered by moving downward, and the screw structure between the screw 35 and the nut 34 may be removed even if the driving shaft 36 stops driving at any position. The positional stabilization of the two-stage tube t2 is achieved.

In order to set the lifter driving distance h, switches 16 and 17 such as a micro switch for detecting the tentacle 18 of the second stage tube t2 at both ends of the driving distance h and inverting the state are provided. By installing in the first stage tube t1, the motor control unit 60 monitors the switches 16 and 17 states to drive the motor so that the operator can execute the expansion operation or the contraction operation of the mast in one-touch operation.

That is, when the control unit 60 of the microcomputer 61 detects the signal of the mast operation switch 62, the control unit 60 provides the ON switching signal to the switching unit 63 to drive the motor 40 in the deployment direction of the mast through the driver driver 68. ) And stops driving of the motor by transmitting a driving stop signal of the motor to the switching unit 63 when the micro switch 16 signal at the upper end is detected. Similarly, when the control unit micom 61 detects the contraction operation switch 66 signal of the mast, it supplies an ON switching signal to the switching unit 67 to drive the motor 40 in the contraction direction of the mast, and the micro switch 17 at the bottom thereof. When a signal is detected, the driving stop signal of the motor is transmitted to the switching unit 67 to stop the driving of the motor.

In the control operation of the mast, the switches 62 and 66 may be installed in the remote controller 69 to expand or contract the mast by operating the remote controller.

The reduction motor 40 and the drive handle 50 are used as a drive mechanism of the drive shaft.

The drive motor 40 drives the electric gear 45 on the transmission shaft 44 through the reduction gear 43, and the electric gear 45 operates the handle 41 on the slide shaft 46 extending from the driving shaft. The drive shaft 36 is driven by being connected to the clutch gear 47 which is moved left and right.

Therefore, when the clutch gear 47 is moved to one side on the slide shaft 46 by the operation of the handle 41 and separated from the electric gear 45, the motor 40 is separated from the longitudinal shaft 32 so that the driving handle can be used. When the two gears 45 and 46 are connected, the driving force of the motor 40 is connected to the longitudinal axis 32, and the vertical axis 32 is driven by the forward and reverse driving force of the motor to form the second tube ( t2) can be driven in the up and down directions.

The drive handle 50 used when the clutch gear 47 is disconnected is connected to the input shaft 51 so as to drive the gear 53 attached to the drive gear 52 and the extension of the drive shaft 36. In this configuration, the motor 40 can be conveniently used when there is no driving power or when contracting the deployed telesk mast with less driving load.

Referring to the driving operation of this invention configured as described above is as follows.

The first stage tube is fixed to the floor to install the mast, power is applied to the motor and the controller, and when the operator presses the floating switch 62, the microcomputer detects this and switches the motor through the switching unit 63 and the driving driver 68. Drive.

The driving force of the motor rotates the drive shaft 36 through the reduction gear 43, the electric gear 45, and the clutch gear 47. The drive shaft 36 rotates the screw 35 on the longitudinal axis 32 via the bevel gears 38 and 37, which in turn causes the second end tube t2 to rise with the nut 34. When the switch 16 detects the tentacles 18 and causes a state change by the floating motion of the second stage tube, the microcomputer 61 detects this and stops the driving of the motor.

As described above, when the second stage tube t2 floats the driving distance h, the expansion tubes t3, t4, and t5 are interlocked with the second stage tube, respectively, so that the mast floats the application device A to the ground. .

In the stretching operation of the mast, the tubes at each end are supported by the lubricious slider supports 11 and 12 and stretched correctly.

In the floating operation of the third stage expansion tube t3, when the floating operation of the second stage tube t2 pulls up one end of the wire rope, the other end of the wire rope supported by the pleats 14 and 13 is the upper portion of the second stage tube t2. In the third stage tube is to be pulled up, and the fourth and fifth stage tube t4, t5 is also linked to this operation.

Now when the operator presses the down switch 66, the control unit drives the motor 40 in the opposite direction from the above until the tentacle 18 reverses the state of the switch 17, thereby contracting the mast to safely lower the application. will be.

In the contracting operation, the clutch gear 47 may be detached from the electric gear 45 and the driving shaft 36 may be rotated by operating the handle 50 to lower the application device on the top of the mast.

The steering wheel operation rotates the drive shaft 36 through the input shaft 51, the drive gear 52, and the gear 53.

As described above, this design prevents free rotation of each end of the telescope mast by overlapping polygonal tubes such as hexagons or squares, and lifts the second stage tube as a screw lifter installed at the first stage of the mast tube. Or driving down and connecting the pulley and the driving wire rope so as to be linked to the operation of the tube of the second stage, the tube of the second stage or more, to simplify the drive mechanism of each end of the mast tube, and to facilitate the production Simplified operation provides a pulley polygonal telescoping mast that provides fewer failures, stabilizes stretch operation and extends service life.

Claims (3)

Multi-stage expansion tubes such as the second, third, fourth and top stages of the expansion tube (t2, t3, t4, t5) are assembled in the base tube (t1) and applied to the top of the upper tube (t5). The apparatus A can be mounted, the lubricity slider support 11 is attached to the outer edge of the expansion tube t2 to t5, and the upper inner edge of the expansion tube t1 to t4 below the uppermost end from the base tube t1. Attach the lubricity slider support 12 to the telescope tubes t1 to t5 so that they can be telescopically stretched, and the telescopic tubes t2 to t5 are incorporated into the base tube t1 so that the telescope tubes t1 to t5 are telescopic. t1) in stretching up and down from above, A lifter 30 is installed in the inner space of the base tube t1 to raise or lower the second stage tube t2. Tubes tn3, t4, t5 of the third or more stages tn are the pleats 13 attached to the bottom of the tube tn and the tube tn-1 on the top of the tube tn-1 and the pleats attached to the bottom of the tn-2 tube ( 14) A pulley-type polygonal telescoping structure configured to be connected to the interlocking wire rope 15 so as to raise the tube tn by the distance of the tube tn-1 relative to the tube tn-1 during the ascending operation of the tube tn-1. mast. The first end tube of claim 1, wherein the laminated tube accommodating chamber (21) and the transmission chamber (22) for accommodating the second end tube are partitioned by a support plate (23), and the shaft (31) of the support plate (23). The lifting and lowering screw 34 of the longitudinal axis 32 is provided with the lifting shaft 34 to which the rotating longitudinal axis 32 is respectively provided in the number of shafts of a transmission chamber, and attached to the bottom support plate 33 of the 2nd end tube t2. (35) is bitten and assembled, and the driven bevel gear 37 of the lower end of the longitudinal axis is bitten by the drive bevel gear 38 on the drive shaft 36, and the drive shaft 36 is driven by the drive motor 40 or the handle 50. Drive in conjunction with The drive motor 40 drives the electric gear 45 on the electric shaft 44 through the reduction gear 43, and the electric gear 45 is left and right according to the handle operation on the slide shaft 46 extending from the drive shaft. A pulley-type polygonal telescoping mast configured to drive a drive shaft 36 by connecting to a shifting clutch gear 47. The reduction gear (3) according to claim 2, wherein the handle (50) used when the clutch gear (47) is disconnected is connected to the input shaft (51) and attached to the drive gear (52) and the extension of the drive shaft (36). 53. A pulley polygonal telescoping mast configured to drive.