A type of liftable and foldable wind-resistant power tower

Abstract

This utility model discloses a lifting and folding wind-resistant power transmission tower, relating to the field of power transmission tower technology. It includes a tower base, within which a tower body is movably mounted. A tower top is folded at the upper end of the tower body. Counterweights and guy ropes are arranged around the tower body. A corrugated pipe is installed between the tower base and the tower body. An anti-blunt component is installed inside the corrugated pipe. The anti-blunt component includes a flexible mesh with flanges at both the upper and lower ends. The beneficial effects of this utility model are: the flexible mesh woven from high-strength PEEK fibers is bonded to the inner wall of the corrugated pipe. Its diamond-shaped mesh can filter fine outdoor sand particles, preventing dust from entering. Even if the corrugated pipe cracks, dust will be blocked by the flexible mesh and cannot contact the lead screw, avoiding protection failure due to damage to the protective component. This solves the problems of lead screw jamming and difficulty in lifting and lowering the tower body caused by dust entering.

Description

Technical Field

[0001] This utility model relates to the field of power transmission tower technology, and in particular to a lifting and folding wind-resistant power transmission tower. Background Technology

[0002] The primary function of power transmission towers is to support power transmission lines, ensuring safe distances between conductors and the ground and obstacles, and enabling stable power transmission even in complex terrain and severe weather. In reality, many power transmission towers are foldable and height-adjustable. They can be quickly erected to restore power after disasters and provide temporary power backup for major events, preventing power outages. Foldable power transmission towers generally consist of a base, body, and top. A drive structure allows for folding and height adjustment, enhancing convenience. The top structure of a foldable power transmission tower includes insulator strings, conductor crossarms and clamps, grounding down conductors and grounding electrodes, achieving high-strength support, safe insulation, and stability.

[0003] Existing technologies mainly address the issues of controlling tower lifting and dust by installing a lead screw inside the tower base and a retractable corrugated pipe between the tower base and the tower body. However, with repeated tower lifting and use in complex environments, the corrugated pipe can easily crack and allow a large amount of dust to enter, causing the lead screw to jam and making tower lifting difficult, thus increasing inconvenience. Therefore, we propose a lifting and folding wind-resistant power tower to solve the problems encountered by existing technologies. Utility Model Content

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] A lifting and folding wind-resistant power tower includes a tower base, a tower body movably disposed within the tower base, a tower top folded at the upper end of the tower body, a counterweight and a guy rope disposed around the outer perimeter of the tower body, a corrugated pipe disposed between the tower base and the tower body, and an anti-blunting component disposed within the corrugated pipe, the anti-blunting component including a flexible net with flanges at both the upper and lower ends of the flexible net.

[0007] As a preferred embodiment of the lifting and folding wind-resistant power tower of this utility model, the tower base is provided with a driving component, the driving component includes a No. 1 self-locking motor fixed to the inner wall of the tower base, the output end of the No. 1 self-locking motor is fixed with a lead screw, the upper end of the lead screw is rotatably connected to the top wall of the tower base through a bearing, and the outer thread of the lead screw is provided with a lead screw sleeve.

[0008] As a preferred embodiment of the lifting and folding wind-resistant power tower of this utility model, the two sides of the screw sleeve are slidably arranged with the inner wall of the tower base through sliding rods, and the upper end of the screw sleeve is fixed to the lower end of the tower body for driving the tower body to lift and lower.

[0009] As a preferred embodiment of the lifting and folding wind-resistant power tower of this utility model, the bottom wall of the tower base is fixed with a storage battery by a bracket, and the inner wall of the tower base is fixed with a controller.

[0010] As a preferred embodiment of the lifting and folding wind-resistant power tower of this utility model, the lower end of the corrugated pipe is sleeved around the tower base and fixed to the outer surface of the tower base by clamps, the upper end of the corrugated pipe is sleeved around the tower body, and the upper end of the corrugated pipe is also fixed to the outer surface of the tower body by clamps.

[0011] As a preferred embodiment of the lifting and folding wind-resistant power tower of this utility model, a flexible net is provided inside the corrugated pipe, and the upper and lower ends of the flexible net are integrally provided with flanges.

[0012] As a preferred embodiment of the lifting and folding wind-resistant power tower of this utility model, the flanges at the upper and lower ends of the flexible net are respectively folded outward and sleeved with the upper and lower ends of the corrugated pipe.

[0013] As a preferred embodiment of the lifting and folding wind-resistant power tower of this utility model, the inner wall of the flange after the corrugated pipe is sleeved and connected to the tower base and the tower body is pressed against the outer surface of the tower base and the tower body.

[0014] As a preferred embodiment of the lifting and folding wind-resistant power tower of this utility model, the inner wall of the corrugated pipe is provided with a groove, and the outer surface of the flexible mesh is integrally provided with a locking block for engaging with the groove. Both the groove and the locking block are semi-circular.

[0015] As a preferred embodiment of the lifting and folding wind-resistant power tower of this utility model, the lower end of the tower top is welded with a connecting pin through a U-shaped frame for hinge connection with the upper end of the tower body. An angle sensor is fixed to one end of the connecting pin. A second self-locking motor is fixed to one side of the tower body through a fixing frame. The output end of the second self-locking motor is fixed to one end of the connecting pin for driving the tower top to fold.

[0016] The beneficial effects of this utility model are:

[0017] 1. A flexible mesh woven from high-strength PEEK fiber is bonded to the inner wall of the corrugated pipe. Its diamond-shaped mesh can filter fine sand particles from the outdoors and prevent dust from entering. Even if the corrugated pipe cracks, the dust will be blocked by the flexible mesh and will not be able to contact the lead screw, thus avoiding the failure of protection due to damage to the protective components. This solves the problem of lead screw jamming and tower lifting difficulties caused by dust entering.

[0018] 2. The flexible mesh is fixed by a combination of flanges and clamps, making installation and disassembly more convenient. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0020] Figure 1 This is a schematic diagram of a lifting and folding wind-resistant power transmission tower.

[0021] Figure 2 This is a schematic diagram showing the connection between the tower body and the tower base of a lifting and folding wind-resistant power transmission tower.

[0022] Figure 3 This is a cross-sectional schematic diagram of the connection between the corrugated pipe and the flexible mesh of a lifting and folding wind-resistant power tower.

[0023] Figure 4 A type of liftable and foldable wind-resistant power tower Figure 2 Enlarged schematic diagram of point a in the middle.

[0024] Figure 5 A type of liftable and foldable wind-resistant power tower Figure 1 Enlarged diagram of point b in the middle.

[0025] The following components are labeled in the diagram: 1. Tower base; 2. Tower body; 3. Tower top; 4. Counterweight; 5. Pull rope; 6. Corrugated pipe; 7. Drive component; 71. No. 1 self-locking motor; 72. Lead screw; 73. Lead screw sleeve; 8. Battery; 9. Anti-blunt component; 91. Flexible net; 92. Locking block; 93. Flanged edge; 10. Controller; 11. Groove; 12. Connecting pin; 13. No. 2 self-locking motor; 14. Angle sensor. Detailed Implementation

[0026] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0027] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0029] Example 1:

[0030] Reference Figures 1 to 5 This is the first embodiment of the present invention. This embodiment provides a lifting and folding wind-resistant power tower, including a tower base 1, a tower body 2 movably arranged inside the tower base 1, a tower top 3 folded at the upper end of the tower body 2, a counterweight block 4 and a pull rope 5 arranged around the tower body 2, a corrugated pipe 6 arranged between the tower base 1 and the tower body 2, and an anti-blunt component 9 arranged inside the corrugated pipe 6. The anti-blunt component 9 includes a flexible net 91 and both the upper and lower ends of the flexible net 91 are provided with flanges 93.

[0031] After the flange 93 is turned outward, it is fitted onto the upper and lower ends of the corrugated pipe 6. After it is attached to the inner wall of the corrugated pipe 6, the flexible net 91 of the corrugated pipe 6 can be fixed to the tower base 1 and the tower body 2 by using conventional clamp fixing method. It is also easy to disassemble. The flexible net 91 is attached to the inner wall of the corrugated pipe 6, which can block the dust that enters through the crack of the corrugated pipe 6 and prevent the screw rod 72 from being affected and jammed by dust. One end of the pull rope 5 is welded to the tower base 1, and the other end is welded to the fixing plate and fixed to the counterweight 4 with bolts, which can be used for wind resistance.

[0032] It should be noted that the flexible mesh 91 is a high-strength polyetheretherketone (PEEK) fiber woven mesh. PEEK fiber has excellent flexibility, can be folded and stretched with the corrugated pipe 6 without cracking, has wear resistance, can withstand the friction of the tower body 2 during lifting and lowering without snagging, has weather resistance, is stable under operating conditions from -50℃ to 250℃, is resistant to ultraviolet rays and salt spray corrosion, and has high filtration accuracy, making it suitable for the complex environment of outdoor temporary power towers. The flexible mesh 91 has a 0.15-0.2mm diamond mesh, which can effectively filter more than 99% of wind and sand particles. Common outdoor fine sand particles have a diameter of 0.05-0.3mm. Compared with round mesh, the diamond mesh has stronger deformation adaptability when folded and is less likely to deform or tear due to wrinkles. The breaking elongation of PEEK fiber is between 20% and 60%, and its elastic modulus is only 1.5GPa, which reflects its flexibility and allows it to be stretched together with the corrugated pipe 6.

[0033] Example 2:

[0034] Reference Figure 1 and Figure 2 This is the second embodiment of the present invention, which is based on the previous embodiment.

[0035] Specifically, a drive unit 7 is installed inside the tower base 1. The drive unit 7 includes a first self-locking motor 71 fixed to the inner wall of the tower base 1. A lead screw 72 is fixed to the output end of the first self-locking motor 71. The upper end of the lead screw 72 is rotatably connected to the top wall of the tower base 1 through a bearing. A lead screw sleeve 73 is threaded onto the outer periphery of the lead screw 72. The two sides of the lead screw sleeve 73 are slidably mounted to the inner wall of the tower base 1 through sliding rods. The upper end of the lead screw sleeve 73 is fixed to the lower end of the tower body 2 for driving the tower body 2 to rise and fall. A storage battery 8 is fixed to the bottom wall of the tower base 1 through a bracket, and a controller 10 is fixed to the inner wall of the tower base 1.

[0036] The tower body 2 is raised and lowered by controlling the rotation of the lead screw 72 through the controller 10 and the self-locking motor 71. This is existing technology and will not be described in detail.

[0037] Specifically, the lower end of the corrugated pipe 6 is sleeved around the tower base 1 and fixed to the outer surface of the tower base 1 by clamps. The upper end of the corrugated pipe 6 is sleeved around the tower body 2 and is also fixed to the outer surface of the tower body 2 by clamps.

[0038] The corrugated pipe 6 is fixed to the tower body 2 and tower base 1 by clamps, which increases its stability.

[0039] Example 3:

[0040] Reference Figure 1 and Figure 2 , Figure 3 , Figure 5 This is the third embodiment of the present invention, which is based on the first two embodiments.

[0041] Specifically, a flexible mesh 91 is installed inside the corrugated pipe 6, and flanges 93 are integrally provided at both the upper and lower ends of the flexible mesh 91. The flanges 93 at the upper and lower ends of the flexible mesh 91 are turned outward and fitted onto the upper and lower ends of the corrugated pipe 6. After the corrugated pipe 6 is fitted and connected to the tower base 1 and the tower body 2, the inner wall of the flanges 93 abuts against the outer surface of the tower base 1 and the tower body 2.

[0042] Specifically, the inner wall of the corrugated pipe 6 is provided with a groove 11, and the outer surface of the flexible mesh 91 is integrally provided with a locking block 92 for engaging with the groove 11. Both the groove 11 and the locking block 92 are semi-circular.

[0043] By using the flange 93 and the groove 11 and the locking block 92 to engage, the flexible mesh 91 fits well with the inner wall of the corrugated pipe 6. The flange 93 can also improve the sealing of the upper and lower ends of the flexible mesh 91, prevent dust from entering at both ends, and increase the convenience of disassembly and assembly.

[0044] Specifically, the lower end of the tower top 3 is welded with a connecting pin 12 via a U-shaped frame for hinged connection with the upper end of the tower body 2. An angle sensor 14 is fixed to one end of the connecting pin 12. A second self-locking motor 13 is fixed to one side of the tower body 2 via a fixing frame. The output end of the second self-locking motor 13 is fixed to one end of the connecting pin 12 for driving the tower top 3 to fold.

[0045] The appropriate folding angle is controlled by the angle sensor 14, which is existing technology and will not be described in detail.

[0046] Working principle: Tower base 1 provides a supporting foundation for the whole device. After the No. 1 self-locking motor 71 in the drive component 7 starts, it drives the lead screw 72 to rotate. Since the lead screw sleeve 73 is threadedly engaged with the lead screw 72 and slides and is limited by the sliding rod against the inner wall of the tower base 1, when the lead screw 72 rotates, the lead screw sleeve 73 moves along the axial direction of the tower base 1, thereby driving the tower body 2, which is fixed to the lead screw sleeve 73, to rise and fall.

[0047] Battery 8 provides power to self-locking motor 71, self-locking motor 13, controller 10, and angle sensor 14. Controller 10 can control the operation of each motor and receive signals from angle sensor 14. Tower top 3 is hinged to the U-shaped frame at the upper end of tower body 2 via connecting pin 12. When self-locking motor 13 starts, it drives connecting pin 12 to rotate, realizing the folding of tower top 3. Angle sensor 14 can monitor the rotation angle of connecting pin 12 to control the folding position of tower top 3.

[0048] The counterweights 4 and ropes 5 around the tower body 2 are used to enhance the overall wind resistance stability of the tower and prevent the tower body 2 from tilting; the corrugated pipe 6 between the tower base 1 and the tower body 2 can extend and retract with the tower body 2 to provide initial protection for the internal screw rod 72.

[0049] In the anti-blunt component 9 inside the corrugated pipe 6, the flexible mesh 91 is woven with high-strength PEEK fiber and has diamond-shaped mesh holes of 0.15-0.2mm. The flexible mesh 91 fits into the inner wall of the corrugated pipe 6, preventing external dust from entering through any cracks that may appear in the corrugated pipe 6, avoiding dust accumulation at the meshing point of the lead screw 72 and the lead screw sleeve 73, which could cause jamming, and ensuring smooth lifting and lowering of the tower body 2.

[0050] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A windproof power iron tower of lifting and folding type, comprising a tower base (1), a tower body (2) movably arranged in the tower base (1), a tower top (3) foldably arranged at an upper end of the tower body (2), a counterweight (4) and a pull rope (5) arranged at a periphery of the tower body (2), and a bellows (6) arranged between the tower base (1) and the tower body (2), characterized in that: The corrugated pipe (6) is provided with an anti-blunting component (9), which includes a flexible mesh (91) and has flanges (93) at both the upper and lower ends.

2. The foldable and wind-resistant tower of claim 1, wherein: The tower base (1) is provided with a driving component (7), which includes a first self-locking motor (71) fixed to the inner wall of the tower base (1). The output end of the first self-locking motor (71) is fixed with a lead screw (72). The upper end of the lead screw (72) is rotatably connected to the top wall of the tower base (1) through a bearing. The lead screw (72) is provided with a lead screw sleeve (73) on its outer thread.

3. The lifting and folding wind-resistant power tower as described in claim 2, characterized in that: The two sides of the screw sleeve (73) are slidably set with the inner wall of the tower base (1) through the sliding rod. The upper end of the screw sleeve (73) is fixed to the lower end of the tower body (2) to drive the tower body (2) to rise and fall.

4. A lifting and folding wind-resistant power tower as described in claim 3, characterized in that: The bottom wall of the tower base (1) is fixed with a storage battery (8) by a bracket, and the inner wall of the tower base (1) is fixed with a controller (10).

5. A lifting and folding wind-resistant power tower as described in claim 1, characterized in that: The lower end of the corrugated pipe (6) is sleeved around the tower base (1) and fixed to the outer surface of the tower base (1) by a clamp. The upper end of the corrugated pipe (6) is sleeved around the tower body (2) and the upper end of the corrugated pipe (6) is also fixed to the outer surface of the tower body (2) by a clamp.

6. A lifting and folding wind-resistant power tower as described in claim 1, characterized in that: The corrugated pipe (6) is provided with a flexible mesh (91), and the upper and lower ends of the flexible mesh (91) are integrally provided with flanges (93).

7. A lifting and folding wind-resistant power tower as described in claim 6, characterized in that: The flanges (93) at the top and bottom of the flexible net (91) are turned outward and fitted onto the top and bottom of the corrugated pipe (6).

8. A lifting and folding wind-resistant power tower as described in claim 7, characterized in that: After the corrugated pipe (6) is fitted and connected to the tower base (1) and the tower body (2), the inner wall of the flange (93) is pressed against the outer surface of the tower base (1) and the tower body (2).

9. A lifting and folding wind-resistant power tower as described in claim 8, characterized in that: The inner wall of the corrugated pipe (6) is provided with a groove (11), and the outer surface of the flexible mesh (91) is integrally provided with a locking block (92) for engaging with the groove (11). Both the groove (11) and the locking block (92) are semi-circular.

10. A lifting and folding wind-resistant power tower as described in claim 1, characterized in that: The lower end of the tower top (3) is welded with a connecting pin (12) through a U-shaped frame for hinge connection with the upper end of the tower body (2). An angle sensor (14) is fixed to one end of the connecting pin (12). A second self-locking motor (13) is fixed to one side of the tower body (2) through a fixing frame. The output end of the second self-locking motor (13) is fixed to one end of the connecting pin (12) for driving the tower top (3) to fold.

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