An antenna mast down structure on a monopole tower

Abstract

The application discloses an antenna pole folding structure on a single-pipe tower and belongs to the field of signal towers. The antenna pole folding structure comprises a folding pole installed on the top of the single-pipe tower, the folding pole is installed on a supporting seat, the folding pole comprises a rotating part installed on the upper portion of the supporting seat, and the folding pole is rotationally connected with the supporting seat at the rotating part. Through the relative rotation of the folding pole and the supporting seat, the folding pole can be folded from a vertical state to a horizontal state and laid on the maintenance platform of the single-pipe tower, thereby solving the problem that the antenna pole on the single-pipe tower is difficult to maintain in the prior art.

Description

Technical Field

[0001] This utility model relates to the field of signal towers, and in particular to an antenna mast collapse structure on a single-tube tower. Background Technology

[0002] A monotube tower is a communication tower with a single conical steel tube as its main structure. At the top of the monotube tower, there is an antenna mast and a maintenance platform for the antenna mast. However, in some actual scenarios, due to the long length of the antenna mast, it is difficult for maintenance personnel to complete the maintenance of the antenna mast even when they are on the maintenance platform. Therefore, a structure that facilitates the maintenance of the antenna mast is needed.

[0003] For example, the "Three-Platform Single-Tube Tower" disclosed in Chinese patent literature, with publication number CN210508611U, includes a single-tube tower, a lightning rod fixedly installed at the top of the single-tube tower, and a platform at the top of the single-tube tower. The platform includes a fixing frame, which is fixedly connected to the single-tube tower, and a support arm is fixedly connected to the outside of the fixing frame. The middle and outer ends of the support arm are respectively fixedly connected to fixing blocks. Utility Model Content

[0004] The present invention aims to overcome the problem of difficult maintenance of antenna masts on monotube towers in the prior art, and provides an antenna mast tilting structure for monotube towers, which makes antenna mast maintenance more convenient by tilting the antenna mast.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: This utility model discloses an antenna mast collapse structure on a monotube tower, comprising a collapse rod installed on the top of the monotube tower, the collapse rod being mounted on a support base, the collapse rod including a rotating part installed on the upper part of the support base, and the collapse rod and the support base being rotatably connected at the rotating part.

[0006] In this application, by rotating the collapsing rod and the support base relative to each other, the collapsing rod can be turned from a vertical state to a horizontal state and placed across the maintenance platform of the single-tube tower, thereby facilitating maintenance personnel to carry out maintenance.

[0007] Preferably, the falling bar includes a counterweight rail, the length direction of which is the same as the length direction of the falling bar, and a counterweight block is installed on the counterweight rail.

[0008] Preferably, the support base is provided with a clamp mounting seat, and a clamp is installed on the clamp mounting seat.

[0009] Preferably, there are several clamps, which are spaced apart along the length of the fallen pole.

[0010] Preferably, the support base is also equipped with a rotating handle.

[0011] Preferably, a speed reduction transmission structure is provided between the rotating handle and the transmission shaft.

[0012] Preferably, the speed reduction transmission structure includes a first transmission wheel installed at the transmission pin, a transmission wheel shaft installed on the support base, a second transmission wheel and a third transmission wheel installed on the transmission wheel shaft, the second transmission wheel rotating synchronously with the first transmission wheel, the diameter of the third transmission wheel being larger than that of the second transmission wheel, and a fourth transmission wheel coaxially arranged with the rotating handle installed on the support base, the fourth transmission wheel rotating synchronously with the third transmission wheel.

[0013] Preferably, the reduction transmission structure further includes a tensioning wheel and a tensioning adjustment shaft, with both ends of the tensioning adjustment shaft installed in adjustment grooves on the support base.

[0014] Preferably, the support base is further provided with a locking structure, the locking structure including a rotating pin, the rotating pin having a radial locking pin hole, a locking pin being installed in the locking pin hole, and the support base having a limiting member located around the rotating pin.

[0015] Preferably, the upper part of the support base is also provided with a tilting limit part.

[0016] Therefore, this utility model has the following beneficial effects: (1) the falling rod can be turned down, making maintenance more convenient; (2) the falling process is made safer by using a counterweight to balance it. Attached Figure Description

[0017] Figure 1 This is a structural schematic diagram of this utility model.

[0018] Figure 2 This is a schematic diagram of the support base and the lower part of the overturning rod in Embodiment 1 of this utility model.

[0019] Figure 3 This is a schematic diagram of the support base and the lower part of the inverted rod in Embodiment 2 of the present invention, showing the structure of the speed reduction transmission structure.

[0020] Figure 4 This is a schematic diagram of the support base and the lower part of the overturning rod in Embodiment 2 of this utility model.

[0021] In the diagram: 1. Falling rod; 2. Support seat; 3. Rotating part; 4. Counterweight; 5. Guide rod; 6. Moving sleeve; 7. Clamp; 8. Clamp mounting seat; 9. First transmission wheel; 10. Second transmission wheel; 11. Third transmission wheel; 12. Fourth transmission wheel; 13. Transmission wheel shaft; 14. Tensioning wheel; 15. Tensioning element; 16. Rotating pin; 17. Locking pin; 18. Limiting element. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0023] Example 1, as Figure 1-2 As shown, an antenna mast collapse structure on a monotube tower is mainly used in monotube towers with long antenna masts. By collapsing the antenna mast onto the maintenance platform, the maintenance of the antenna mast becomes more convenient.

[0024] This application includes a collapsing pole 1 installed on the top of a monotube tower, the collapsing pole 1 being mounted on a support base 2. In this application, the longer antenna masts on the monotube tower are designed as collapsing poles 1. Generally, antenna masts exceeding 1.5 meters can be designed as collapsing poles 1. When antenna masts of different lengths are installed on the top of the monotube tower, shorter antenna masts, which are easier to directly inspect, can be designed as ordinary poles without a collapsing structure, while longer antenna masts, which are inconvenient to directly inspect, can be designed as collapsing poles 1.

[0025] The collapsing rod 1 includes a rotating part 3 installed on the upper part of the support base 2. The collapsing rod 1 and the support base 2 are rotatably connected at the rotating part 3. The support base 2 is fixed on the maintenance platform. The support base 2 is a vertically arranged non-solid steel material. For example, in this embodiment, the support base 2 is an I-beam. The non-solid nature is for weight reduction, and the structure of the I-beam can leave space for the installation of the rotating part 3. In other possible embodiments, the support base 2 can also be made of bent steel plates or other structures. The upper part of the support base 2 is also provided with a collapsing limiting part. The rotating part 3 is provided with an abutting part for contacting the collapsing limiting part. In this embodiment, since an I-beam is used as the support base 2, the middle structure of the I-beam can serve as the collapsing limiting part. If the steel structure of the support base 2 itself does not have a part that can serve as a collapsing limiting part, a crossbeam parallel to the rotating part 3 can be welded to one side of the rotating part 3 as a collapsing limiting part.

[0026] The collapsing rod 1 can be divided into an upper part and a lower part according to its position relative to the rotating part 3. The upper part of the collapsing rod 1 acts as an antenna mast when erected, while the lower part acts as a counterweight. A counterweight track is provided on the lower part of the collapsing rod 1, with its length direction parallel to that of the collapsing rod 1. The counterweight track includes two parallel guide rods 5, and a counterweight block 4 is mounted on the track. A movable sleeve 6 mounted on the guide rods 5 is provided on the counterweight block 4. A fixing structure is also provided on the counterweight block 4, including a locking screw. By tightening the locking screw, the counterweight block 4 can be secured to the guide rods 5, thus fixing it on the counterweight track. By adjusting the position of the counterweight block 4, the center of gravity of the collapsing rod 1 can be changed. By bringing the center of gravity of the collapsing rod 1 as close as possible to the rotating part 3, the collapsing rod 1 will not rotate too quickly due to gravity, thus improving safety.

[0027] The support base 2 is provided with a clamp mounting seat 8, and a clamp 7 is mounted on the clamp mounting seat 8. The clamp mounting seat 8 includes two angle steels respectively mounted on both sides of the support base 2. The clamp mounting seat 8 has mounting holes. The clamp 7 is U-shaped, and its two ends are respectively mounted on the two angle steels by nuts. By tightening the nuts, the distance between the clamp 7 and the clamp mounting seat 8 can be changed, thereby achieving a tight grip on the lower part of the fallen bar 1. There are several clamps 7, which are spaced apart along the length of the fallen bar 1. In this embodiment, there are two clamps 7. The number of clamps 7 can be adjusted according to the thickness of a single clamp 7.

[0028] Before installing and using the collapsing rod 1, the installer needs to adjust the position of the counterweight 4 so that the collapsing rod 1 will not rotate naturally without the influence of external force from the operator. Then, the counterweight 4 is fixed by tightening the locking screws. Then, the collapsing rod 1 is rotated so that its lower part is close to the support base 2. With the clamp 7 holding the lower part of the collapsing rod 1, the clamp 7 is installed onto the clamp mounting base 8 to fix the collapsing rod 1. After the collapsing rod 1 is fixed, the fixing base is then installed on the maintenance platform of the single-tube tower.

[0029] If the collapsed bar 1 needs to be inspected during use, first loosen the nut on the clamp 7 and remove the clamp 7. Then rotate the collapsed bar 1 until it reaches its limit under the obstruction of the collapsed limit part. At this time, the collapsed bar 1 is in a horizontal state, and the maintenance personnel can inspect the collapsed bar 1 on the maintenance platform.

[0030] Example 2, as Figure 3-4As shown, an antenna mast collapse structure on a monotube tower is mainly used in monotube towers with long antenna masts. By collapsing the antenna mast onto the maintenance platform, the maintenance of the antenna mast becomes more convenient.

[0031] This application includes a collapsing pole 1 installed on the top of a monotube tower, the collapsing pole 1 being mounted on a support base 2. In this application, the longer antenna masts on the monotube tower are designed as collapsing poles 1. Generally, antenna masts exceeding 1.5 meters can be designed as collapsing poles 1. When antenna masts of different lengths are installed on the top of the monotube tower, shorter antenna masts, which are easier to directly inspect, can be designed as ordinary poles without a collapsing structure, while longer antenna masts, which are inconvenient to directly inspect, can be designed as collapsing poles 1.

[0032] The collapsing rod 1 includes a rotating part 3 mounted on the upper part of the support base 2. The collapsing rod 1 and the support base 2 are rotatably connected at the rotating part 3. The support base 2 is fixed on the maintenance platform. The support base 2 is a vertically arranged non-solid steel material. In this embodiment, the support base 2 is a bent steel plate, which is formed by bending a whole steel plate twice at 90°. The support base 2 includes two opposing support surfaces. At the rotating part 3, a fixed shaft is provided between the two support surfaces of the support base 2, and the rotating part 3 is mounted on the fixed shaft.

[0033] The collapsing rod 1 can be divided into an upper part and a lower part according to its position relative to the rotating part 3. The upper part of the collapsing rod 1 acts as an antenna mast when erected, while the lower part acts as a counterweight. A counterweight track is provided on the lower part of the collapsing rod 1, with its length direction parallel to that of the collapsing rod 1. The counterweight track includes two parallel guide rods 5, and a counterweight block 4 is mounted on the track. A movable sleeve 6 mounted on the guide rods 5 is provided on the counterweight block 4. A fixing structure is also provided on the counterweight block 4, including a locking screw. By tightening the locking screw, the counterweight block 4 can be secured to the guide rods 5, thus fixing it on the counterweight track. By adjusting the position of the counterweight block 4, the center of gravity of the collapsing rod 1 can be changed. By bringing the center of gravity of the collapsing rod 1 as close as possible to the rotating part 3, the collapsing rod 1 will not rotate too quickly due to gravity, thus improving safety.

[0034] The support base 2 is provided with a clamp mounting seat 8, and a clamp 7 is mounted on the clamp mounting seat 8. The clamp mounting seat 8 includes two angle steels respectively mounted on both sides of the support base 2. The clamp mounting seat 8 has mounting holes. The clamp 7 is U-shaped, and its two ends are respectively mounted on the two angle steels by nuts. By tightening the nuts, the distance between the clamp 7 and the clamp mounting seat 8 can be changed, thereby achieving a tight grip on the lower part of the fallen bar 1. There are several clamps 7, which are spaced apart along the length of the fallen bar 1. In this embodiment, there are two clamps 7. The number of clamps 7 can be adjusted according to the thickness of a single clamp 7.

[0035] The support base 2 is also equipped with a rotating handle, and a speed reduction transmission structure is provided between the rotating handle and the transmission shaft. In this application, the falling process of the falling rod 1 is controlled by rotating the handle and the speed reduction transmission structure, which can avoid the safety hazards caused by the operator directly rotating the falling rod 1 by hand.

[0036] The speed reduction transmission structure consists of several sprockets and a matching chain. Specifically, it includes a first transmission wheel 9 installed at the rotating part 3. A transmission wheel shaft 13 is also installed on the support base 2. The transmission wheel shaft 13, like the fixed shaft, is positioned between the two supporting surfaces of the support base 2. A second transmission wheel 10 and a third transmission wheel 11 are installed on the transmission wheel shaft 13. The second transmission wheel 10 and the first transmission wheel 9 are linked and rotate synchronously via a first chain. The first transmission wheel 9 and the second transmission wheel 10 have the same diameter, while the third transmission wheel 11 has a larger diameter than the second transmission wheel 10. A fourth transmission wheel 12, coaxially arranged with the rotating handle, is also installed on the support base 2. The fourth transmission wheel 12 rotates synchronously when the rotating handle is turned. The fourth transmission wheel 12 and the third transmission wheel 11 are linked and rotate synchronously via a second chain. To protect the speed reduction transmission structure, in this embodiment, the upper part of the support base 2 is provided with a cover plate to shield the speed reduction transmission structure.

[0037] The reduction transmission structure also includes a tensioning wheel 14 and a tension adjustment shaft. The tensioning wheel 14, together with the third transmission wheel 11 and the fourth transmission wheel 12, cooperates with the second chain. The two ends of the tension adjustment shaft are installed in the adjustment grooves on the support seat 2. The adjustment seat is horizontally arranged. The support seat 2 is also provided with a horizontally arranged tensioning member 15. The tensioning member 15 is a screw. By turning the tensioning member 15, it can be moved in the horizontal direction, thereby driving the tension adjustment shaft to move horizontally, thereby achieving tensioning of the second chain.

[0038] The support base 2 is also equipped with a locking structure, which includes a rotating pin 16. The rotating pin 16 has a radial locking pin 17 hole, in which a detachable locking pin 17 is installed. The locking pin 17 and the locking pin 17 hole are in a transition fit, allowing for direct disassembly by insertion and removal. The support base 2 is equipped with limiting members 18 located around the rotating pin 16. The limiting members 18 are several limiting rods installed perpendicular to the side of the support base 2. These limiting rods are arranged in an arc with the rotating pin 16 as the center, and the distance between two adjacent limiting rods is slightly larger than the diameter of the locking pin 17. Through the locking structure, the fallen rod 1 can be locked at different angles during the falling process, thereby adapting to maintenance needs under different conditions.

[0039] Before installing and using the collapsing rod 1, the installer needs to adjust the position of the counterweight 4 so that the collapsing rod 1 will not rotate naturally without the influence of external force from the operator. Then, the counterweight 4 is fixed by tightening the locking screws. Then, the collapsing rod 1 is rotated so that its lower part is close to the support base 2. With the clamp 7 holding the lower part of the collapsing rod 1, the clamp 7 is installed onto the clamp mounting base 8 to fix the collapsing rod 1. After the collapsing rod 1 is fixed, the fixing base is then installed on the maintenance platform of the single-tube tower.

[0040] If the inverted rod 1 needs to be inspected during use, first loosen the nut on the clamp 7 to remove the clamp 7, and then rotate the inverted rod 1 by turning the handle. The rotating handle drives the inverted rod 1 to rotate under the transmission of the reduction gear structure until the inverted rod 1 rotates to the limit position. At this time, the inverted rod 1 is in a horizontal state, and the maintenance personnel can inspect the inverted rod 1 on the maintenance platform.

[0041] If maintenance personnel need to perform maintenance when the drooping rod 1 is not completely collapsed, that is, when the collapse angle is less than 90°, they can try to insert the locking pin 17 into the locking pin 17 hole after rotating the drooping rod 1 to a certain angle. If the locking pin 17 interferes with the limit rod and cannot be inserted at this time, the angle of the drooping rod 1 is finely adjusted until the locking pin 17 can pass between the two limit rods and be inserted into the locking pin 17 hole.

Claims

1. A structure for the collapse of an antenna mast on a single-tube tower, characterized in that, It includes a drooping rod installed on the top of a single-tube tower, the drooping rod being mounted on a support base, the drooping rod including a rotating part installed on the upper part of the support base, the drooping rod being rotatably connected to the support base at the rotating part.

2. The antenna mast collapse structure on a single-tube tower according to claim 1, characterized in that, The falling bar includes a counterweight rail, the length direction of which is the same as the length direction of the falling bar, and a counterweight block is installed on the counterweight rail.

3. The antenna mast collapse structure on a single-tube tower according to claim 1, characterized in that, The support base is provided with a clamp mounting seat, and a clamp is installed on the clamp mounting seat.

4. The antenna mast collapse structure on a single-tube tower according to claim 3, characterized in that, There are several clamps, and these clamps are spaced apart along the length of the fallen pole.

5. The antenna mast collapse structure on a single-tube tower according to claim 1, characterized in that, The support base is also equipped with a rotating handle.

6. The antenna mast collapse structure on a single-tube tower according to claim 5, characterized in that, A speed reduction transmission structure is provided between the rotating handle and the drive shaft.

7. The antenna mast collapse structure on a single-tube tower according to claim 6, characterized in that, The speed reduction transmission structure includes a first transmission wheel installed at the rotating part, a transmission wheel shaft installed on the support base, a second transmission wheel and a third transmission wheel installed on the transmission wheel shaft, the second transmission wheel rotating synchronously with the first transmission wheel, the diameter of the third transmission wheel being larger than that of the second transmission wheel, and a fourth transmission wheel coaxially arranged with the rotating handle installed on the support base, the fourth transmission wheel rotating synchronously with the third transmission wheel.

8. The antenna mast collapse structure on a single-tube tower according to claim 6, characterized in that, The speed reduction transmission structure also includes a tensioning wheel and a tension adjustment shaft, with both ends of the tension adjustment shaft installed in adjustment grooves on the support base.

9. The antenna mast collapse structure on a single-tube tower according to claim 1, characterized in that, The support base is also equipped with a locking structure, which includes a rotating pin, a radial locking pin hole on the rotating pin, a locking pin installed in the locking pin hole, and a limiting member located around the rotating pin on the support base.

10. A structure for the collapse of an antenna mast on a single-tube tower according to any one of claims 1-9, characterized in that, The upper part of the support base is also provided with a tilting limit part.

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