Anti-winding flagpole

CN224729420UActive Publication Date: 2026-09-08SHAANXI YANCHANG CHINACOAL YULIN ENERGY CHEM
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Patent Information

Application Number
CN202521809298.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-25
Publication Date
2026-09-08
Estimated Expiration
2035-08-25

AI Technical Summary

Technical Problem

[0005]本申请实施例通过提供一种防缠绕旗杆,解决了现有的旗杆悬挂红旗时容易使得红旗缠绕在旗杆上的问题

Benefits of technology

[0021]This utility model discloses an anti-tangling flagpole. When the wind force is low, the controller controls the connected electronic telescopic pole to continuously move downward and then upward. When the electronic telescopic pole extends and retracts downward, it drives the piston to slide downward. At this time, the space on the upper side of the flagpole body increases, thus reducing its internal pressure. Under the action of air pressure difference, air can enter from the air inlet at the top of the flagpole body. Finally, the air is blown out from the first air outlet on the side of the flagpole body and enters the space between the flagpole body and the mounting sleeve. Finally, the air passes through the second air outlet, the gap on the pole positioning cylinder, and the air expansion groove before being blown towards the red flag. At this point, the red flag can be kept flat and fluttering in the air without getting tangled. When the wind is strong enough to rotate the mounting sleeve, the electronic telescopic rod of the controller stops moving. Under the action of the wind, the mounting sleeve can rotate freely along the support sleeve. Since the red flag is firmly fixed to the mounting sleeve, when the mounting sleeve rotates naturally under the action of the wind, it can drive the red flag to rotate together. At this time, no matter which direction the wind blows from, the red flag can maintain a free-flying state and always show the best effect. In summary, the anti-tangling flagpole disclosed in this utility model can effectively prevent the red flag from getting tangled on the flagpole.

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Abstract

This utility model discloses an anti-tangling flagpole, comprising: a flagpole body, a support sleeve, a guide structure, and an mounting sleeve; wherein the flagpole body is rotatably mounted on a base, the support sleeve is fitted onto the flagpole body and threadedly connected to the flagpole body; the guide structure is mounted on the base, the support sleeve is slidably connected to the guide structure, the mounting sleeve is rotatably mounted on the upper inner ring of the support sleeve via a first bearing, the upper end of the mounting sleeve extends out of the support sleeve, and a pole positioning cylinder is mounted on one side of the mounting sleeve, used to fix the red flag; because the support sleeve is threadedly connected to the flagpole body, when the flagpole body rotates, the support sleeve can slide up and down to complete the flag raising and lowering process; after the flag is raised, the red flag is flying in the air, and because the mounting sleeve is rotatably mounted on the upper end of the support sleeve via the first bearing, the red flag can also rotate with the mounting sleeve under the wind, thus effectively preventing the red flag from tangling on the flagpole.
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Description

Technical Field

[0001] This application relates to the field of flagpole technology, and more particularly to an anti-tangle flagpole. Background Technology

[0002] Coal chemical enterprises typically hang red flags at high locations such as the top of towers. These bright red flags serve as warning signs, effectively alerting nearby personnel to the presence of the chemical plant and its potential dangers. This helps prevent unauthorized personnel from approaching and reduces the likelihood of accidents. Furthermore, understanding wind direction is crucial for safe production in coal chemical enterprises. The red flags at high locations such as the top of towers can indicate wind direction, helping workers determine the possible direction of the spread of harmful gases or substances.

[0003] A traditional flagpole typically consists of a flagpole post, a flag rope, pulleys, and a red flag. The flag rope slides on the flagpole post via pulleys, and the red flag can be raised or lowered after being connected to the flag rope.

[0004] When the wind direction changes, the red flag hanging on the flagpole will inevitably rotate with the wind because the flagpole itself lacks an effective direction adjustment mechanism. This passive rotation often leads to the red flag getting tangled with the flagpole, meaning that the flag's fabric will be partially or completely wrapped around the flagpole. Once the red flag is wrapped around the flagpole, it cannot play its normal guiding role and may even pose a safety hazard. Utility Model Content

[0005] This application provides an anti-tangling flagpole, which solves the problem that red flags easily get tangled on existing flagpoles when they are hung.

[0006] This utility model embodiment provides an anti-tangling flagpole, including:

[0007] The flagpole body is rotatably mounted on the base, and the outer ring of the flagpole body is threaded.

[0008] A support sleeve is fitted onto the flagpole body and threadedly connected to the flagpole body.

[0009] The guide structure is set on the base, and the support sleeve is slidably connected to the guide structure. The support sleeve can slide along the axial direction of the flagpole body.

[0010] The mounting sleeve is rotatably mounted on the upper inner ring of the support sleeve via the first bearing. The upper end of the mounting sleeve extends out of the support sleeve, and the red flag is fixed on the mounting sleeve. When the wind blows, the red flag can rotate with the mounting sleeve.

[0011] Preferably, the guiding structure includes a fixed sleeve fitted around the lower outer ring of the flagpole body, the lower end of the fixed sleeve being fixedly connected to the base, and the upper end of the fixed sleeve being provided with a guide piece with an arc-shaped cross-section. The inner wall of the guide piece is provided with a sliding groove, which is arranged along the axial direction of the flagpole body. The outer ring of the supporting sleeve is provided with a protrusion, which is slidably connected to the sliding groove.

[0012] Preferably, at least two first bearings are provided, each first bearing is located in the inner ring of the support sleeve, the outer ring of the first bearing is fixedly connected to the inner wall of the support sleeve, and the mounting sleeve is fixedly connected to the inner ring of the first bearing.

[0013] Preferably, a second bearing is also provided between the fixed sleeve and the flagpole body. The outer ring of the second bearing is connected to the fixed sleeve, and the inner ring of the second bearing is connected to the flagpole body to support the rotation of the flagpole body.

[0014] Preferably, a rod positioning cylinder for fixing the red flag is provided on the side wall of the mounting sleeve, and a gap for the red flag to pass through is provided on the side of the rod positioning cylinder away from the mounting sleeve.

[0015] Preferably, a wind sensor is provided at the top of the mounting sleeve, and the wind sensor is connected to a controller provided on the flagpole body.

[0016] Preferably, the flagpole body is a hollow structure with an air inlet at its upper end communicating with its interior. An air inlet pipe is installed at the air inlet, and a one-way valve is installed on the air inlet pipe. An electronic telescopic rod is also installed inside the flagpole body. The telescopic end of the electronic telescopic rod is vertically upward and has a piston at its upper end. The piston is slidably connected to the inner wall of the flagpole body and can slide along the axial direction of the flagpole body. The upper side of the piston and the flagpole body form an air inlet cavity. A first air outlet is provided on the side wall of the air inlet cavity. The air inlet cavity is connected to the inner cavity of the mounting sleeve through the first air outlet. A second air outlet is also provided at the position where the pole positioning cylinder is fixedly connected to the mounting sleeve. The inner cavity of the mounting sleeve and the inner cavity of the pole positioning cylinder are connected through the second air outlet. A first wind baffle ring is provided on the inner ring of the mounting sleeve. The outer ring of the first wind baffle ring is fixedly connected to the mounting sleeve, and the inner ring of the first wind baffle ring is slidably connected to the flagpole body. The electronic telescopic rod is connected to the controller.

[0017] Preferably, the lower end of the rod positioning cylinder is sealed, and a second windproof ring is provided on the inner side of the upper end of the rod positioning cylinder.

[0018] Preferably, an air-expanding groove is provided on one side of the gap.

[0019] Preferably, the base is a hollow structure, and a motor is installed inside the base. The output shaft of the motor is vertically upward, and the lower end of the flagpole body is connected to the output shaft of the motor. The motor is connected to the controller.

[0020] The beneficial effects of this utility model are:

[0021] This utility model discloses an anti-tangling flagpole. When the wind force is low, the controller controls the connected electronic telescopic pole to continuously move downward and then upward. When the electronic telescopic pole extends and retracts downward, it drives the piston to slide downward. At this time, the space on the upper side of the flagpole body increases, thus reducing its internal pressure. Under the action of air pressure difference, air can enter from the air inlet at the top of the flagpole body. Finally, the air is blown out from the first air outlet on the side of the flagpole body and enters the space between the flagpole body and the mounting sleeve. Finally, the air passes through the second air outlet, the gap on the pole positioning cylinder, and the air expansion groove before being blown towards the red flag. At this point, the red flag can be kept flat and fluttering in the air without getting tangled. When the wind is strong enough to rotate the mounting sleeve, the electronic telescopic rod of the controller stops moving. Under the action of the wind, the mounting sleeve can rotate freely along the support sleeve. Since the red flag is firmly fixed to the mounting sleeve, when the mounting sleeve rotates naturally under the action of the wind, it can drive the red flag to rotate together. At this time, no matter which direction the wind blows from, the red flag can maintain a free-flying state and always show the best effect. In summary, the anti-tangling flagpole disclosed in this utility model can effectively prevent the red flag from getting tangled on the flagpole. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments of this utility model or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a structural schematic diagram of an anti-tangling flagpole according to the present invention;

[0024] Figure 2 This is a schematic diagram of an anti-tangling flagpole guide structure according to the present invention;

[0025] Figure 3 This is a schematic diagram of the connection of the positioning cylinder for the anti-entanglement flagpole component according to this utility model;

[0026] Figure 4 This is a perspective view of a positioning cylinder for an anti-tangling flagpole component according to the present invention.

[0027] Icons: 1. Flagpole body; 2. Base; 3. Support sleeve; 4. Mounting sleeve; 5. First bearing; 6. Fixing sleeve; 7. Guide plate; 8. Second bearing; 9. Pole positioning cylinder; 10. Electronic telescopic pole; 11. Piston; 12. Motor; 13. Air inlet pipe; 14. One-way valve; 15. Air expansion slot; 16. Gap; 17. First air outlet; 18. Second air outlet; 19. First wind deflector ring; 20. Second wind deflector ring. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some, not all, of the embodiments of the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.

[0029] This utility model provides an anti-tangling flagpole, such as Figures 1-2 As shown, it includes: a flagpole body 1, a support sleeve 3, a guide structure, and an mounting sleeve; wherein the flagpole body 1 is rotatably mounted on the base 2, and the outer ring of the flagpole body 1 is threaded; the support sleeve 3 is sleeved on the flagpole body 1 and threadedly connected to the flagpole body 1; the guide structure is mounted on the base 2, and the support sleeve 3 is slidably connected to the guide structure, and the support sleeve 3 can slide along the axial direction of the flagpole body 1; the mounting sleeve 4 is rotatably mounted on the upper inner ring of the support sleeve 3 through a first bearing 5, and the upper end of the mounting sleeve 4 extends out of the support sleeve 3; the red flag is fixed on the mounting sleeve 4, and when the wind blows, the red flag can rotate with the mounting sleeve 4. Because the support sleeve 3 is threadedly connected to the flagpole body 1, and the guide structure can guide the support sleeve 3 to slide along the axial direction of the flagpole body 1, when the flagpole body 1 rotates, the support sleeve 3 can slide up and down to complete the flag raising and lowering process. After the flag is raised, the red flag is flying in the air. At this time, because the mounting sleeve 4 is rotatably set at the upper end of the support sleeve 3 through the first bearing 5, the red flag is fixed on the mounting sleeve 4. At this time, under the wind, the red flag can also rotate with the mounting sleeve 4, which can effectively prevent the red flag from getting tangled on the flagpole 1.

[0030] To ensure the support sleeve 3 can rise and fall normally when the flagpole body 1 rotates, the guide structure disclosed in this embodiment includes a fixed sleeve 6 fitted around the lower outer ring of the flagpole body 1. The lower end of the fixed sleeve 6 is fixedly connected to the base 2. The upper end of the fixed sleeve 6 is also provided with a guide piece 7 with an arc-shaped cross-section. The inner wall of the guide piece 7 is provided with a sliding groove, which is arranged along the axial direction of the flagpole body 1. The outer ring of the support sleeve 3 is provided with a protrusion, which is slidably connected to the sliding groove. Specifically, the lower end of the fixed sleeve 6 is firmly fixedly connected to the base 2, forming a stable foundation and ensuring the stability of the entire flagpole system. The upper end of the fixed sleeve 6 is cleverly provided with a guide piece 7 with an arc-shaped cross-section. This arc design is not only aesthetically pleasing, but more importantly, it matches the shape of the flagpole body 1, allowing it to better fit the flagpole body 1 and guide its smooth rotation. The inner wall of the guide piece 7 has a sliding groove that extends along the axial direction of the flagpole body 1, that is, it is arranged along the length direction of the flagpole body 1. This design allows the sliding groove to be aligned with the axis of the flagpole body 1, ensuring the accuracy of the guidance. The support sleeve 3, which is the part that needs to be raised and lowered, has a protrusion on its outer ring. The function of this protrusion is to cooperate with the sliding groove on the inner wall of the guide plate 7. The protrusion and the sliding groove are connected by a sliding connection, which means that the protrusion can move freely up and down in the sliding groove, while being restricted by the sliding groove so as not to deviate from the track.

[0031] Furthermore, to further ensure that the mounting sleeve 4 can rotate freely and smoothly under wind force, at least two first bearings 5 ​​are provided in this embodiment. The first bearings 5 ​​are both located on the inner ring of the support sleeve 3. On the one hand, the outer ring of the first bearing 5 is tightly connected to the inner wall of the support sleeve 3 by a fixed connection. This fixed connection ensures the stability of the bearing inside the support sleeve 3 and prevents the bearing from shifting or falling off during the stress process, thereby ensuring the reliable operation of the entire rotation system. On the other hand, the mounting sleeve 4 is fixedly connected to the inner ring of the first bearing 5. This connection method allows the mounting sleeve 4 to rotate smoothly through the inner ring of the bearing 5. Since there is low-friction rolling contact between the inner and outer rings of the first bearing 5, this design greatly reduces the rotation resistance, allowing the mounting sleeve 4 to rotate easily under wind force.

[0032] Furthermore, to further improve the rotational performance and stability of the entire flagpole system, this embodiment also introduces the design of a second bearing 8. This design aims to provide more reliable rotational support for the flagpole body 1, ensuring that it can rotate smoothly and stably in various environments. Specifically, in this embodiment, a second bearing 8 is also provided between the fixed sleeve 6 and the flagpole body 1. The outer ring of the second bearing 8 is connected to the fixed sleeve 6, and the inner ring of the second bearing 8 is connected to the flagpole body 1 to support the rotation of the flagpole body 1. The second bearing 8 is cleverly arranged between the fixed sleeve 6 and the flagpole body 1. This arrangement allows the second bearing 8 to effectively bear the radial load generated by the flagpole body 1 during rotation, thereby reducing the burden on other support structures and improving the durability of the entire system. The outer ring of the second bearing 8 is connected to the fixed sleeve 6, ensuring that there is no relative rotation between the outer ring of the second bearing 8 and the fixed sleeve 6, thus providing a stable support foundation for the rotation of the flagpole body 1. The inner ring of the second bearing 8 is connected to the flagpole body 1 to ensure that the flagpole body 1 will not slide relative to the inner ring of the bearing during rotation. According to actual needs, a suitable connection method can be selected, such as fixing the inner ring of the bearing to the flagpole body 1 by keyway fit, bolt connection or bonding.

[0033] like Figures 3-4 As shown, in order to facilitate the installation of the red flag at the top of the mounting sleeve 4, the mounting sleeve 4 disclosed in this embodiment is provided with a rod positioning cylinder 9 for fixing the red flag on its side wall. The side of the rod positioning cylinder 9 away from the mounting sleeve 4 is provided with a gap 16 for the red flag to pass through, and the upper end of the rod positioning cylinder 9 is sealed. When installing the red flag, a lightweight rod is inserted into one side of the red flag. The diameter of the rod is required to be smaller than the inner diameter of the rod positioning cylinder 9. After inserting the rod into the rod positioning cylinder 9, the red flag is pulled out from the gap to achieve stable installation of the red flag.

[0034] Furthermore, in this embodiment, a wind sensor is provided at the top of the mounting sleeve 4, and the wind sensor is connected to a controller mounted on the flagpole body 1. The wind sensor can monitor the wind force in real time and transmit the measured wind force data to the controller in real time.

[0035] In general, when the wind force is too weak to rotate the mounting sleeve 4, in order to ensure that the red flag can float flat in the air and avoid tangling, the flagpole body 1 disclosed in this embodiment is a hollow structure with an air inlet at its upper end that communicates with its interior. An air inlet pipe 13 is provided at the air inlet, and a one-way valve 14 is provided on the air inlet pipe 13. An electronic telescopic rod 10 is also provided inside the flagpole body 1. The telescopic end of the electronic telescopic rod 10 is vertically upward, and a piston 11 is provided at its upper end. The piston 11 is slidably connected to the inner wall of the flagpole body 1 and can slide along the axial direction of the flagpole body 1. The upper side of the piston 11 and the flagpole body 1 form an air inlet cavity, and a first air outlet 17 is provided on the side wall of the air inlet cavity. The air inlet cavity is connected to the inner cavity of the mounting sleeve 4 through the first air outlet 17. A second air outlet 18 is also provided at the position where the rod positioning cylinder 9 is fixedly connected to the mounting sleeve 4. The inner cavity of the mounting sleeve 4 and the inner cavity of the rod positioning cylinder 9 are connected through the second air outlet 18. Because the upper end of the mounting sleeve 4 is not sealed, the air entering the inner cavity of the mounting sleeve 4 may escape from the upper end. Therefore, a first windproof ring 19 is provided on the inner ring of the mounting sleeve 4. The outer ring of the first windproof ring 19 is fixedly connected to the mounting sleeve 4, and the inner ring of the first windproof ring 19 is slidably connected to the flagpole body 1, so as to prevent the air entering the inner cavity of the mounting sleeve 4 from escaping from the upper side. The electronic telescopic rod 10 is connected to the controller.

[0036] When the wind sensor detects insufficient wind speed to rotate the mounting sleeve 4, the controller controls the connected electronic telescopic rod 10 to move downwards. As the telescopic rod 10 extends and retracts downwards, it causes the piston 11 to slide downwards. This increases the space on the upper side of the flagpole body 1, thus reducing its internal pressure. Under the influence of this pressure difference, air can enter from the air inlet at the top of the flagpole body 1. The one-way valve 14 at the air inlet only allows air to enter the flagpole body 1 from the outside. The controller then continues to control the electronic telescopic rod 10 to extend and retract upwards. Afterwards, the air inside the flagpole body 1 enters the mounting sleeve through the first air outlet 17. The inner cavity of the cylinder 4 (i.e., between the mounting sleeve 4 and the flagpole body 1) is connected by a first windbreak ring 19. The air that enters the inner cavity of the mounting sleeve 4 enters the inner side of the pole positioning cylinder 9 through the second air outlet 18 and finally overflows from the gap on the side wall of the pole positioning cylinder 9. The controller controls the telescopic rod 10 to continuously move downward and then upward, thus ensuring that air continuously overflows from the gap on the side wall of the pole positioning cylinder 9. When the overflowing air forms a wind and blows towards the red flag, it keeps the red flag in a fluttering state. Therefore, it can ensure that the red flag can float flat in the air and avoid tangling.

[0037] Because the lower end of the rod positioning cylinder 9 is sealed, the air entering the rod positioning cylinder 9 will not escape from the lower end. In order to prevent the air from escaping from the upper end of the rod positioning cylinder 9, a second windbreak ring 20 is provided on the inner side of the upper end of the rod positioning cylinder 9 disclosed in this embodiment. The outer ring of the second windbreak ring 20 is fixedly connected to the inner wall of the rod positioning cylinder 9. After the red flag is inserted into the rod, it can also pass smoothly through the inner ring of the second windbreak ring 20 and enter the rod positioning cylinder 9. The second windbreak ring 20 can effectively prevent the air entering the rod positioning cylinder 9 from escaping from the upper side, thereby ensuring that the air entering the rod positioning cylinder 9 overflows from the gap.

[0038] Furthermore, in order to allow wind energy to smoothly overflow from the gap and act on the red flag, an air-expanding groove 15 is provided on one side of the gap 16 disclosed in this embodiment. Because the red flag occupies a certain space in the gap, it may affect the effective overflow of wind. Providing an air-expanding groove 15 on one side of the gap 16 can ensure that the wind blows smoothly to the red flag after passing through the air-expanding groove 15 on one side of the gap 16, thereby ensuring that the red flag can keep fluttering.

[0039] To achieve automatic flag raising and lowering, a motor 12 is installed in the base 2 disclosed in this embodiment. The output shaft of the motor 12 is vertically upward, and the lower end of the flagpole body 1 is connected to the output shaft of the motor 12. The motor 12 is connected to the controller. Therefore, when raising or lowering the flag, the controller controls the motor 12 to work, thereby causing the motor 12 to drive the flagpole body 1 to rotate. The motor 12 is a forward and reverse motor. Forward rotation realizes the flag raising process, and reverse rotation realizes the flag lowering process.

[0040] In summary, this utility model discloses an anti-tangling flagpole. When the wind force is low, the controller controls the connected electronic telescopic pole 10 to continuously move downward and then upward. When the electronic telescopic pole 10 extends and retracts downward, it drives the piston 11 to slide downward. At this time, the space on the upper side of the flagpole body 1 increases, thus reducing its internal pressure. Under the action of air pressure difference, air can enter from the air inlet at the top of the flagpole body 1. Finally, the air is blown out from the first air outlet 17 on the side of the flagpole body 1 and enters the space between the flagpole body 1 and the mounting sleeve 4. Finally, the air passes through the second air outlet 18, the gap 16 on the pole positioning cylinder 9, and the air expansion groove 1 in sequence. The wind blows towards the red flag, ensuring it floats flat in the air and avoids tangling. When the wind is strong enough to rotate the mounting sleeve 4, the controller electronic telescopic rod 10 stops. Under the influence of the wind, the mounting sleeve 4 can rotate freely along the support sleeve 3. Since the red flag is firmly fixed to the mounting sleeve 4, when the mounting sleeve 4 rotates naturally under the influence of the wind, it can rotate along with the red flag. At this time, no matter which direction the wind blows, the red flag can maintain a free-flying state and always show the best effect. In summary, the anti-tangling flagpole disclosed in this utility model can effectively prevent the red flag from getting tangled on the flagpole.

[0041] In the description of the embodiments of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing the embodiments of this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In addition, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this utility model can be understood according to the specific circumstances.

[0042] The various embodiments in this specification are described in a progressive manner. For the same or similar parts between the various embodiments, please refer to each other. Each embodiment focuses on describing the differences from other embodiments.

[0043] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of this application.

Claims

1. An anti-tangle flagpole, characterized in that, include: Flagpole body (1), the flagpole body (1) is rotatably mounted on the base (2), and the outer ring of the flagpole body (1) is provided with threads; A support sleeve (3) is fitted onto the flagpole body (1) and threadedly connected to the flagpole body (1); A guide structure is provided on the base (2), and the support sleeve (3) is slidably connected to the guide structure. The support sleeve (3) can slide along the axial direction of the flagpole body (1). The mounting sleeve (4) is rotatably mounted on the upper inner ring of the support sleeve (3) via the first bearing (5). The upper end of the mounting sleeve (4) extends out of the support sleeve (3). The red flag is fixed on the mounting sleeve (4). When the wind blows, the red flag can rotate with the mounting sleeve (4).

2. The anti-tangle flagpole according to claim 1, characterized in that, The guiding structure includes a fixed sleeve (6) fitted around the lower outer ring of the flagpole body (1). The lower end of the fixed sleeve (6) is fixedly connected to the base (2). The upper end of the fixed sleeve (6) is also provided with a guide piece (7) with an arc-shaped cross-section. The inner wall of the guide piece (7) is provided with a sliding groove. The sliding groove is arranged along the axial direction of the flagpole body (1). The outer ring of the support sleeve (3) is provided with a protrusion. The protrusion is slidably connected to the sliding groove.

3. The anti-tangle flagpole according to claim 2, characterized in that, At least two first bearings (5) are provided. The first bearings (5) are all located in the inner ring of the support sleeve (3). The outer ring of the first bearing (5) is fixedly connected to the inner wall of the support sleeve (3). The mounting sleeve (4) is fixedly connected to the inner ring of the first bearing (5).

4. The anti-tangle flagpole according to claim 2, characterized in that, A second bearing (8) is also provided between the fixed sleeve (6) and the flagpole body (1). The outer ring of the second bearing (8) is connected to the fixed sleeve (6), and the inner ring of the second bearing (8) is connected to the flagpole body (1) to support the rotation of the flagpole body (1).

5. The anti-tangle flagpole according to claim 1, characterized in that, The mounting sleeve (4) has a rod positioning cylinder (9) for fixing the red flag on its side wall. The rod positioning cylinder (9) has a gap (16) for the red flag to pass through on the side away from the mounting sleeve (4).

6. The anti-tangle flagpole according to claim 5, characterized in that, A wind sensor is provided at the top of the mounting sleeve (4), and the wind sensor is connected to a controller provided on the flagpole body (1).

7. The anti-tangle flagpole according to claim 6, characterized in that, The flagpole body (1) is a hollow structure with an air inlet at its upper end communicating with its interior. An air inlet pipe (13) is provided at the air inlet, and a one-way valve (14) is provided on the air inlet pipe (13). An electronic telescopic rod (10) is also provided inside the flagpole body (1). The telescopic end of the electronic telescopic rod (10) is vertically upward, and a piston (11) is provided at its upper end. The piston (11) is slidably connected to the inner wall of the flagpole body (1). The piston (11) can slide along the axial direction of the flagpole body (1). The upper side of the piston (11) and the flagpole body (1) form an air inlet cavity. A first air outlet (17) is provided on the side wall of the air inlet cavity. The air inlet cavity is connected to the inner cavity of the mounting sleeve (4) through the first air outlet (17). A second air outlet (18) is also provided at the position where the rod positioning cylinder (9) is fixedly connected to the mounting sleeve (4). The inner cavity of the mounting sleeve (4) and the inner cavity of the rod positioning cylinder (9) are connected through the second air outlet (18). A first windproof ring (19) is provided on the inner ring of the mounting sleeve (4). The outer ring of the first windproof ring (19) is fixedly connected to the mounting sleeve (4). The inner ring of the first windproof ring (19) is slidably connected to the flagpole body (1). The electronic telescopic rod (10) is connected to the controller.

8. The anti-tangle flagpole according to claim 7, characterized in that, The lower end of the rod positioning cylinder (9) is sealed, and a second windproof ring (20) is provided on the inner side of the upper end of the rod positioning cylinder (9).

9. The anti-tangle flagpole according to claim 7, characterized in that, An air duct (15) is provided on one side of the gap (16).

10. An anti-tangle flagpole according to claim 7, characterized in that, The base (2) is a hollow structure, and a motor (12) is installed inside the base (2). The output shaft of the motor (12) is vertically upward. The lower end of the flagpole body (1) is connected to the output shaft of the motor (12), and the motor (12) is connected to the controller.