All-steel structure television tower mast for hydraulically lifting antenna

Abstract

The invention belongs to the technical field of masts, and particularly relates to an all-steel structure television tower mast for hydraulically lifting an antenna, which comprises a bottom support section, a top mounting section and a plurality of middle sections, and further comprises a movable seat fixed at the bottom of an antenna mounting seat, a plurality of guide sliding strips are arranged on the two sides of the interiors of the bottom supporting section, the top mounting section and the multiple middle sections, and the adjacent guide sliding strips in the vertical direction are connected in series and connected in a butt joint mode. An antenna can be assembled in the mast in advance, mounting is completed in a hydraulic sliding and lifting mode, the stability, firmness and accuracy of the antenna during mounting are improved, the single jacking stroke of the hydraulic jacking unit can be shortened by means of the supporting unit, the adaptability of the hydraulic jacking unit to the jacking height is enhanced, and the working efficiency is improved. Meanwhile, vibration energy can be dissipated through viscous resistance of hydraulic oil, and the wind resistance of the mast and the antenna can be improved in an auxiliary mode.

Description

Technical Field

[0001] This invention belongs to the field of mast technology, and in particular relates to an all-steel structure TV tower mast for hydraulically lifting antennas. Background Technology

[0002] The TV tower mast is a key component of the TV tower, used to install antennas and other equipment. It needs to be tall enough to achieve wide signal coverage, and at the same time, it must be able to withstand strong winds at high altitudes and its own load to ensure long-term stable operation.

[0003] TV tower masts are mainly used to install various signal transmitting antennas such as TV and radio, which transmit signals over long distances to achieve wide signal coverage. They can also be used to install auxiliary equipment such as lighting and lightning protection to ensure the safe operation of the TV tower. Their structures are diverse, but they are basically all-steel frame structures, such as the square steel mast for TV towers disclosed in patent announcement number CN202850571U. During the construction of a TV tower, the mast and antenna are generally hoisted and installed in two separate parts. Because the top of the TV tower is located at a high altitude, the overall installation is quite difficult. Furthermore, the antenna is affected by strong winds at high altitudes, resulting in poor stability during installation and making it difficult to ensure the accuracy and firmness of the antenna installation. Summary of the Invention

[0004] The purpose of this invention is to address the above-mentioned problems by providing an all-steel structure TV tower mast with a hydraulically lifted antenna.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a hydraulically lifted antenna all-steel structure television tower mast, comprising a bottom support section, a top mounting section, and several intermediate sections, wherein an antenna mounting base is provided on the inner side of the bottom support section, and further comprising: The movable seat is fixed to the bottom of the antenna mounting base. The bottom support section, the top mounting section and several intermediate sections are provided with several guide rails on both sides inside, and the adjacent vertical guide rails are connected in series. The side wall of the movable seat is provided with several guide grooves that match the guide rails. A hydraulic lifting unit is installed on the movable seat, and the hydraulic lifting unit, in conjunction with the bottom support section, pushes the movable seat to move along the guide rail. The support unit is disposed on the sidewalls of the bottom support section, the top mounting section and several intermediate sections.

[0006] Preferably, the bottom support section, the top mounting section, and the several intermediate sections each include two steel frames, and a plurality of square steel columns and a plurality of polygonal steel columns are fixedly arranged between the two steel frames, and the support unit is installed on the side wall of each square steel column.

[0007] Preferably, the hydraulic lifting unit includes cylinders fixedly inserted at the four corners of the movable seat, and cylindrical pistons are slidably connected inside each cylinder. A telescopic column is fixedly connected to the bottom of the cylindrical piston and slidably connected to the end of the cylinder. A pad is fixed to the bottom of the telescopic column. A support spring is provided between the cylindrical piston and the cylinder. An oil supply mechanism is installed at the bottom of the movable seat.

[0008] Preferably, the support unit includes a steel sleeve fixedly inserted into the side wall of a square steel column. A support block is provided inside the steel sleeve. Symmetrical sliders are fixed to the side wall of the support block. The inner wall of the steel sleeve is provided with a sliding groove that matches the slider. An end cap is fixedly connected to the end of the steel sleeve. A return spring is fixedly provided between the end cap and the support block. The side wall of the support block is provided with an inclined slope. When the movable seat and the pad move vertically, the slope pushes the support block to move horizontally.

[0009] Preferably, the oil supply mechanism includes a cylinder box fixedly installed at the bottom of the movable seat. A partition plate is fixed inside the cylinder box, and piston plates are slidably connected to both sides of the partition plate inside the cylinder box. A set of electric push rods is fixed to both sides of the partition plate on the top side of the cylinder box, and the movable end of the electric push rod is fixedly connected to the top of the piston plate on the same side. Multiple oil supply pipes are fixed to the side wall of the cylinder box. A cylinder head is fixed to the top of the cylinder body, and the oil supply pipes pass through the cylinder head and communicate with the inside of the cylinder body. The cylinder box is filled with hydraulic oil in the position below the piston plate.

[0010] Preferably, a connecting column is fixed inside the lower steel frame of the bottom support section, and each pad is set above the connecting column on the same side. An installation frame is fixed inside the upper steel frame of the top mounting section, and threaded holes are pre-set on the end faces of the installation frame and the movable seat.

[0011] Preferably, a plurality of oil baffles are provided below each of the two piston plates, and the sidewalls of the oil baffles are provided with a plurality of oil holes, and the bottom of the partition plate is provided with an oil passage groove.

[0012] Preferably, a set of connecting blocks is provided above each of the oil baffles, and the connecting blocks are fixed to the bottom of the piston plate. The two connecting blocks in the same set are rotatably connected to the oil baffles, and a torsion spring is provided between the oil baffles and the connecting blocks.

[0013] Compared with existing technologies, the advantages of a hydraulically lifted antenna all-steel structure TV tower mast are: 1. Through the cooperation of the bottom support section, top mounting section, several intermediate sections, antenna mounting base, movable base, guide slide bar, and guide slide groove, the antenna can be pre-assembled into the mast. After the mast is installed, the antenna can be raised and fixed by hydraulic lifting unit. This not only improves the stability of the antenna installation by utilizing the mast, but also enhances the firmness and accuracy of the antenna installation.

[0014] 2. The support unit can be used in conjunction with the hydraulic jacking unit as a temporary support point for hydraulic jacking, effectively reducing the single jacking stroke of the hydraulic jacking unit and improving its adaptability to hydraulic jacking height.

[0015] 3. By coordinating the oil baffles, oil holes, and oil channels, and with the viscous resistance of the hydraulic oil after being lifted by the hydraulic jacking unit, the vibration energy of the mast and antenna caused by strong winds at high altitudes can be consumed to a certain extent after the mast and antenna are installed, thus helping to improve the wind resistance of the mast and antenna. Attached Figure Description

[0016] Figure 1 This is a structural schematic diagram of an all-steel TV tower mast with a hydraulically lifting antenna provided by the present invention; Figure 2 This is a schematic diagram of the bottom support section of an all-steel structure TV tower mast with a hydraulically lifting antenna provided by the present invention; Figure 3 This is a structural schematic diagram of the middle section of an all-steel structure TV tower mast with a hydraulically lifting antenna provided by the present invention; Figure 4 This is a schematic diagram of the connection structure of the bottom support section, top mounting section and middle section of an all-steel structure TV tower mast with a hydraulically lifting antenna provided by the present invention. Figure 5 This is a schematic diagram of the internal structure of the cylinder box of an all-steel structure TV tower mast with a hydraulic lifting antenna provided by the present invention; Figure 6 This is a schematic diagram of the internal structure of the cylinder of an all-steel structure TV tower mast with hydraulic lifting antenna provided by the present invention; Figure 7 This is a schematic diagram of the internal structure of the steel sleeve of an all-steel structure TV tower mast with a hydraulically lifting antenna provided by the present invention; Figure 8 This invention provides an all-steel structure TV tower mast with a hydraulically lifted antenna. Figure 5 Enlarged view of the structure of section A; Figure 9 This is a top view schematic diagram of the movable base of an all-steel structure TV tower mast for hydraulically lifting antennas, provided by the present invention.

[0017] In the diagram: 1 Bottom support section, 2 Top mounting section, 3 Intermediate section, 4 Antenna mounting base, 5 Movable seat, 6 Guide slide bar, 7 Guide slide groove, 8 Hydraulic lifting unit, 81 Cylinder block, 82 Cylindrical piston, 83 Telescopic column, 84 Pad plate, 85 Support spring, 9 Support unit, 91 Steel sleeve, 92 Support block, 93 Slider, 94 Moving slide groove, 95 End cap, 96 Return spring, 10 Steel frame, 11 Square steel column, 12 Polygonal steel column, 13 Oil supply mechanism, 131 Cylinder box, 132 Divider plate, 133 Piston plate, 134 Electric push rod, 135 Oil supply pipe, 136 Cylinder head, 14 Connecting column, 15 Mounting frame, 16 Oil baffle plate, 17 Oil hole, 18 Oil passage groove, 19 Connecting block, 20 Torsion spring. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0019] like Figures 1-9As shown, a hydraulically lifted antenna all-steel structure TV tower mast includes a bottom support section 1, a top mounting section 2, and several intermediate sections 3. An antenna mounting base 4 is provided on the inner side of the bottom support section 1. The mast also includes a movable base 5, which is fixed to the bottom of the antenna mounting base 4. Several guide rails 6 are provided on both sides of the interior of the bottom support section 1, the top mounting section 2, and the several intermediate sections 3, with adjacent vertical guide rails 6 connected in series. Several openings are provided on the side wall of the movable base 5 to connect with the guide rails 6. A matching guide groove 7 and a hydraulic lifting unit 8 are installed on the movable seat 5. The hydraulic lifting unit 8, in conjunction with the bottom support section 1, pushes the movable seat 5 to move along the guide rail 6. The hydraulic lifting unit 8 includes cylinders 81 fixedly inserted into the four corners of the movable seat 5. Each cylinder 81 has a cylindrical piston 82 slidably connected inside. The bottom of the cylindrical piston 82 is fixedly connected to a telescopic column 83 that is slidably connected to the cylinder end of the cylinder 81. A pad 84 is fixedly fixed to the bottom of the telescopic column 83. The cylindrical piston 82 and the cylinder 81 are connected to each other. A support spring 85 is provided between the movable seats. An oil supply mechanism 13 is installed at the bottom of the movable seat 5. The oil supply mechanism 13 includes a cylinder box 131 fixedly installed at the bottom of the movable seat 5. A partition plate 132 is fixed inside the cylinder box 131, and piston plates 133 are slidably connected to both sides of the partition plate 132 inside the cylinder box 131. A set of electric push rods 134 are fixed to both sides of the partition plate 132 on the top side inside the cylinder box 131, and the movable end of the electric push rod 134 is connected to the top of the piston plate 133 on the same side. The cylinder housing 131 is fixedly connected to the cylinder head 81. The cylinder head 136 is fixed to the top of the cylinder body 81, and the oil supply pipes 135 pass through the cylinder head 136 and connect to the inside of the cylinder body 81. The inside of the cylinder housing 131 is filled with hydraulic oil below the piston plate 133, which can conveniently supply hydraulic oil to the inside of each cylinder body 81. The electric push rod 134 adopts a synchronous electric push rod, or an elastic element is installed at the movable end of each electric push rod 134 to ensure stable movement of the piston plate 133.

[0020] Support units 9 are installed on the side walls of the bottom support section 1, the top mounting section 2, and several intermediate sections 3. Each of the bottom support section 1, the top mounting section 2, and the several intermediate sections 3 includes two steel frames 10, and multiple square steel columns 11 and multiple polygonal steel columns 12 are fixedly arranged between the two steel frames 10. Support units 9 are installed on the side walls of each square steel column 11. Support units 9 include steel sleeves 91 that are fixedly inserted into the side walls of the square steel columns 11. Support blocks 92 are provided inside the steel sleeves 91, and symmetrical sliders 93 are fixed to the side walls of the support blocks 92. The inner wall of the steel sleeves 91 has openings that match the sliders 93. The movable slide 94 has an end cap 95 fixedly connected to the end of the steel sleeve 91, and a return spring 96 is fixedly installed between the end cap 95 and the support block 92. The side wall of the support block 92 has an inclined slope. When the movable seat 5 and the pad 84 move vertically, they push the support block 92 horizontally by the slope. During the upward movement of the movable seat 5, it is still necessary to use external hoisting equipment for auxiliary limiting (for example, by using ropes to pull it obliquely at the top of the antenna to limit its left and right swaying, etc., and by releasing the rope appropriately when the antenna is rising to avoid affecting the antenna's ascent), to ensure the safety of the high-altitude antenna installation.

[0021] The lower steel frame 10 of the bottom support section 1 has a connecting column 14 fixed inside, and each pad 84 is set above the connecting column 14 on the same side. The upper steel frame 10 of the top mounting section 2 has a mounting frame 15 fixed inside. The end faces of the mounting frame 15 and the movable seat 5 are pre-drilled with threaded holes, which can facilitate the pre-fixing of the movable seat 5 and ensure the accuracy of installation.

[0022] Several oil baffles 16 are provided below the two piston plates 133, and multiple oil holes 17 are provided on the side wall of the oil baffles 16. An oil passage groove 18 is provided at the bottom of the partition plate 132. By utilizing the viscous resistance of hydraulic oil, vibration energy can be dissipated to a certain extent, thereby improving the wind resistance and stability of the mast and antenna.

[0023] Each oil baffle 16 is provided with a set of connecting blocks 19 above it, and the connecting blocks 19 are fixed to the bottom of the piston plate 133. The two connecting blocks 19 in the same set are rotatably connected to the oil baffle 16, and a torsion spring 20 is provided between the oil baffle 16 and the connecting blocks 19. Since the piston plate 133 needs to move down when the movable seat 5 is lifted, the oil baffle 16 will not affect the normal downward movement of the piston plate 133 because the oil baffle 16 and the connecting blocks 19 rotate at this time.

[0024] The operating principle of the present invention is described as follows: The antenna is pre-installed on the antenna mounting base 4 on the ground. Then, several intermediate sections 3 are assembled together with the bottom support section 1 and the top mounting section 2 in sequence and fixed by welding or other means. Then, it is hoisted to the top of the TV tower. The bottom support section 1 is fixed in the preset installation position on the top of the tower. Then, the electric push rod 134 controller is connected to the interface reserved on the movable base 5 and the electric push rod 134 controller is connected to the external power supply circuit. Then, the electric push rod 134 controller is started. The controller of the electric push rod 134 controls the electric push rod 134 to extend. The electric push rod 134 pushes the corresponding piston plate 133 downward. The piston plate 133 squeezes the hydraulic oil below. Under the squeezing action, the hydraulic oil enters the cylinder 81 through each oil supply pipe 135. Under the oil pressure of the hydraulic oil, the cylindrical piston 82 inside each cylinder 81 will generate relative movement with the cylinder 81. Since initially, the pad 84 of the telescopic column 83 abuts against the connecting column 14 in the bottom support section 1, the pad 84 cannot move at this time. Therefore, the cylinder 81 is relative to the telescopic column 83. The movable seat 5 moves upward, thus pushing the movable seat 5 upward along the guide slide 6. When the movable seat 5 moves to the upper support block 92, the movable seat 5 will press against the slope of the side of the support block 92, thereby pushing the support block 92 to move horizontally. When the movable seat 5 passes the support block 92, under the action of the return spring 96, the support block 92 moves back to its original position. At this time, the limit switch on the electric push rod 134 will feed back an electrical signal to the electric push rod 134 controller. The electric push rod 134 controller will immediately control the electric push rod 134 to stop the extension action and control the electric push rod 134 to start the retraction. At this time, because The pressure applied to the hydraulic oil by the piston plate 133 disappears. Under the action of the support spring 85, each cylindrical piston 82 moves back to its original position, and the hydraulic oil flows back into the cylinder box 131. At the same time, since the movable seat 5 is now above the support block 92, the support block 92 will support the movable seat 5 under the action of gravity, while the pad 84 will move upward and reset with the telescopic column 83. When the pad 84 moves to the corresponding support block 92, the pad 84 will also press against the slope of the side of the support block 92, pushing the support block 92 to move horizontally. After the pad 84 passes the support block 92, under the action of the return spring 96... When the support block 92 moves back to its original position, it is now below the pad 84. At this time, the electric push rod 134 moves back to its original position, and the limit switch of the electric push rod 134 sends an electrical signal to the electric push rod 134 controller. The electric push rod 134 controller then controls the electric push rod 134 to extend again. Similarly, the cylinder 81 and the cylindrical piston 82 move relative to each other again. Since the pad 84 is temporarily supported by the support block 92, the movable seat 5 continues to move upward. This cycle repeats, causing the height of the movable seat 5 to continuously increase, thereby driving the antenna to extend upward from inside the mast. As the movable seat 5 moves upward, it will abut against the mounting frame 15 at the top mounting section 2. At this time, the installer temporarily turns off the electric push rod 134 controller. Then, the installer uses bolts and threaded holes on the mounting frame 15 and the movable seat 5 to lock the mounting frame 15 and the movable seat 5 together to ensure the position accuracy of the movable seat 5. Subsequently, the mounting frame 15 and the movable seat 5 are fixed a second time by welding or other methods to ensure the firmness of the movable seat 5 installation. After the movable seat 5 is fixed to the mounting frame 15, the installer starts the electric push rod 134 controller to control each electric push rod 134 to return to its original position. At this time, the hydraulic oil flows back into the cylinder box 131. When the mast and antenna encounter strong winds at high altitudes, the mast and antenna will vibrate under the action of strong winds. The hydraulic oil inside the cylinder box 131 will flow relative to the cylinder box 131. The hydraulic oil on both sides of the partition plate 132 needs to pass through the oil passage 18, and the hydraulic oil will be blocked by the oil baffle plate 16. By utilizing the viscous resistance of the hydraulic oil, the vibration energy can be dissipated to a certain extent, thereby improving the wind resistance performance of the mast and antenna and making them more stable. (Note that when the piston plate 133 lifts the movable seat 5, the piston plate 133 needs to move down. At this time, because the oil baffle plate 16 and the connecting block 19 rotate, the oil baffle plate 16 will not affect the normal downward movement of the piston plate 133.)

[0025] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A hydraulically lifted antenna all-steel structure television tower mast, comprising a bottom support section (1), a top mounting section (2), and several intermediate sections (3), wherein an antenna mounting base (4) is provided on the inner side of the bottom support section (1), characterized in that, Also includes: The movable seat (5) is fixed at the bottom of the antenna mounting seat (4). The bottom support section (1), the top mounting section (2) and several intermediate sections (3) are provided with several guide slides (6) on both sides inside. The adjacent vertical guide slides (6) are connected in series. The side wall of the movable seat (5) is provided with several guide grooves (7) that match the guide slides (6). A hydraulic lifting unit (8) is installed on the movable seat (5), and the hydraulic lifting unit (8) cooperates with the bottom support section (1) to push the movable seat (5) to move along the guide slide (6); Support unit (9) is disposed on the sidewalls of the bottom support section (1), the top mounting section (2) and several intermediate sections (3).

2. The all-steel structure TV tower mast with hydraulically lifted antenna according to claim 1, characterized in that, The bottom support section (1), the top mounting section (2) and several intermediate sections (3) each include two steel frames (10), and several square steel columns (11) and several polygonal steel columns (12) are fixedly arranged between the two steel frames (10). The support unit (9) is installed on the side wall of each square steel column (11).

3. The all-steel structure TV tower mast with hydraulically lifted antenna according to claim 2, characterized in that, The hydraulic lifting unit (8) includes a cylinder (81) fixedly inserted into the four corners of the movable seat (5), and a cylindrical piston (82) is slidably connected inside the cylinder (81). A telescopic column (83) is fixedly connected to the bottom of the cylindrical piston (82) and slidably connected to the cylinder end of the cylinder (81). A pad (84) is fixed to the bottom of the telescopic column (83). A support spring (85) is provided between the cylindrical piston (82) and the cylinder (81). An oil supply mechanism (13) is installed at the bottom of the movable seat (5).

4. The all-steel structure TV tower mast for a hydraulically lifted antenna according to claim 3, characterized in that, The support unit (9) includes a steel sleeve (91) fixedly inserted into the side wall of a square steel column (11). A support block (92) is provided inside the steel sleeve (91). A symmetrical slider (93) is fixed on the side wall of the support block (92). A sliding groove (94) matching the slider (93) is opened on the inner wall of the steel sleeve (91). An end cap (95) is fixedly connected to the end of the steel sleeve (91). A return spring (96) is fixedly provided between the end cap (95) and the support block (92). An inclined slope is opened on the side wall of the support block (92). When the movable seat (5) and the pad (84) move vertically, the support block (92) moves horizontally by squeezing the slope.

5. The all-steel structure TV tower mast for hydraulically lifting antennas according to claim 3, characterized in that, The oil supply mechanism (13) includes a cylinder box (131) fixedly installed at the bottom of the movable seat (5). A partition plate (132) is fixed inside the cylinder box (131), and piston plates (133) are slidably connected to both sides of the partition plate (132) inside the cylinder box (131). A set of electric push rods (134) are fixed to both sides of the partition plate (132) on the top side inside the cylinder box (131), and the movable end of the electric push rod (134) is fixedly connected to the top of the piston plate (133) on the same side. Multiple oil supply pipes (135) are fixed to the side wall of the cylinder box (131). A cylinder head (136) is fixed to the top of the cylinder body (81), and the oil supply pipes (135) pass through the cylinder head (136) and communicate with the inside of the cylinder body (81). The cylinder box (131) is filled with hydraulic oil at the position below the piston plate (133).

6. The all-steel structure TV tower mast for a hydraulically lifted antenna according to claim 3, characterized in that, The lower steel frame (10) of the bottom support section (1) is fixed with a connecting column (14), and each pad (84) is set above the connecting column (14) on the same side. The upper steel frame (10) of the top mounting section (2) is fixed with a mounting frame (15), and the end faces of the mounting frame (15) and the movable seat (5) are both pre-set with threaded holes.

7. A hydraulically lifting antenna all-steel structure TV tower mast according to claim 5, characterized in that, Several oil baffles (16) are provided below the two piston plates (133), and multiple oil holes (17) are provided on the side wall of the oil baffles (16). An oil passage groove (18) is provided at the bottom of the partition plate (132).

8. A hydraulically lifting antenna all-steel structure TV tower mast according to claim 7, characterized in that, Each of the oil baffles (16) is provided with a set of connecting blocks (19) above it, and the connecting blocks (19) are fixed to the bottom of the piston plate (133). The two connecting blocks (19) in the same set are rotatably connected to the oil baffles (16), and a torsion spring (20) is provided between the oil baffles (16) and the connecting blocks (19).

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