CN116865143A - Rotary magnetic anti-falling protection device - Google Patents

Abstract

The present invention relates to the technical field of anti-falling in power pole tower operations, and more specifically, to a rotating magnetic anti-falling protection device, which includes a magnetic base and a rotatable magnetic ring. The magnetic base includes a first fixed magnetic ring, a second fixed magnetic ring, A magnetic fluid chamber is equipped with magnetic fluid. The first fixed magnetic ring and the second fixed magnetic ring are respectively set at both ends of the magnetic fluid chamber. A through hole is provided in the middle of the magnetic fluid chamber for socketing with the foot nail. The through hole The rotatable magnetic ring is disposed through the first fixed magnetic ring and the second fixed magnetic ring. The rotatable magnetic ring is detachably set outside the magnetic fluid chamber and is provided with a safety buckle; the rotatable magnetic ring, the first fixed magnetic ring, and the second fixed magnetic ring are There are multiple magnet blocks on each ring, and two adjacent magnet blocks are arranged to attract each other. The magnet blocks at the corresponding positions of the first fixed magnetic ring and the second fixed magnetic ring are arranged in the same manner. The invention is lightweight and easy to carry, and can be adapted to various pole and tower operations.

Description

A rotating magnetic anti-fall protection device

Technical field

The present invention relates to the technical field of anti-falling in power pole tower operations, and more specifically, to a rotating magnetic anti-falling protection device.

Background technique

Climbing poles and towers in the power industry is still a high-risk operation. Among them, the fatality rate of falling from poles and towers is close to 100%. However, due to the diversification of pole structures, the differences in the behavior of operators climbing the pole, and the complexity of potential fall hazard factors, it is very important to achieve good protection when climbing the pole.

However, in order to achieve 100% protection against falling during pole and tower operations in the power industry, multiple sets of protective measures are often preset, such as safety ropes, safety locks, etc. However, such protection requires operators to carry it at all times, which greatly increases the load of pole and tower operations. . More importantly, existing anti-fall protection uses traditional mechanical structures, and its installation and disassembly are very cumbersome. In on-site operations, climbing back and forth on the tower due to the installation or removal of safety ropes frequently occurs. In the current anti-fall protection for pole and tower operations in the power industry, there is a lack of effective and portable anti-fall protection devices. How to achieve lightweight, portable and full-range protection is the key to optimizing anti-fall protection for climbing poles and towers in the power industry.

Contents of the invention

The purpose of the present invention is to overcome the shortcomings of the existing anti-fall protection device for pole and tower operations in the electric power industry, which are too mechanized, cannot be made lightweight, and are not easy to disassemble and assemble, and provide a rotating magnetic anti-fall protection device that is lightweight and easy to carry. Features: It is easy for operators to disassemble and install in different positions of climbing tower operations. It can be combined with the characteristics of multi-positions during tower operations to actively or passively design the working mode of the device to adapt to diverse tower operations.

In order to solve the above technical problems, the technical solution adopted by the present invention is:

A rotating magnetic anti-fall protection device is provided, which includes a magnetic base and a rotatable magnetic ring. The magnetic base includes a first fixed magnetic ring, a second fixed magnetic ring, and a magnetic fluid chamber equipped with magnetic fluid. The third fixed magnetic ring A fixed magnetic ring and the second fixed magnetic ring are respectively sleeved on both ends of the magnetic fluid chamber. A through hole is provided in the middle of the magnetic fluid chamber for socketing with the foot nails, and the through hole penetrates the first A fixed magnetic ring and a second fixed magnetic ring are provided. The rotatable magnetic ring is located between the first fixed magnetic ring and the second fixed magnetic ring, and is detachably set outside the magnetic fluid chamber and is provided with a safety buckle; The rotatable magnetic ring, the first fixed magnetic ring, and the second fixed magnetic ring are each provided with a plurality of magnetic blocks. The number of the magnetic blocks is an even number, and the rotatable magnetic ring, the first fixed magnetic ring, and the second fixed magnetic ring are The number of magnet blocks on the magnetic ring is equal, and two adjacent magnet blocks are oppositely attracted and arranged. The magnet blocks at the corresponding positions of the first fixed magnetic ring and the second fixed magnetic ring are arranged in the same manner.

The magnetic base of the present invention can be sleeved on the foot nail, which is realized by removing the foot nail from the through hole. The rotatable magnetic ring is sleeved on the magnetic base, and can rotate relative to the magnetic base to adjust its connection with the first fixed magnet. The alignment position of the ring and the second fixed magnetic ring. The first fixed magnetic ring, the second fixed magnetic ring, and the rotatable magnetic ring are all ring structures, and they are all made up of multiple magnetic blocks with a similar fan-shaped structure. The magnetic blocks The number is an even number. Among the multiple magnet blocks that make up the first fixed magnetic ring, two adjacent magnet blocks are oppositely attracted to each other. That is, when viewed from one side of the first fixed magnetic ring, the magnet blocks are N-pole. Alternately arranged with the S pole; the structural composition of the second fixed magnetic ring and the rotatable magnetic ring is similar to that of the first fixed magnetic ring; the number of magnet blocks on the rotatable magnetic ring, the first fixed magnetic ring, and the second fixed magnetic ring is equal. Adjusting the rotational position of the rotatable magnetic ring relative to the magnetic fluid chamber can align the magnet blocks on the rotatable magnetic ring with the magnet blocks on the first fixed magnetic ring and the second fixed magnetic ring. During use, the first fixed magnetic ring The magnetic ring and the second fixed magnetic ring are arranged in the same direction along the axis of the magnetic fluid chamber so that the magnetic blocks at the corresponding positions of the two are arranged in the same manner. That is, after the rotation angle of the rotatable magnetic ring is adjusted, one side of the rotatable magnetic ring and Multiple magnetic fields are formed between the first fixed magnetic ring, and multiple magnetic fields are formed between the other side and the second fixed magnetic ring; the magnetic field is used to magnetize the magnetic fluid in the magnetic fluid cavity, so that the magnetic base is tightly fixed on the foot nails, thereby increasing friction. At the same time, it is tied to the operator through the safety buckle on the rotatable magnetic ring. Even if the operator accidentally loses his footing, it can also provide anti-fall protection. Since the foot nails are fixedly installed on the pole tower, during the construction process, the magnetic base can be fixed to the foot nails first. The operator only needs to carry the rotatable magnetic ring and connect the rotatable magnetic ring with the magnetic fluid chamber. The anti-falling function of the present invention can be realized. When it is necessary to release the fastening of the magnetic base and the foot nails, only the rotatable magnetic ring and the magnetic base need to be separated, which is very convenient and convenient. At the same time, the flexible installation method of magnetic fluid tightening function under the action of magnetic field can reduce the structural friction loss of the protection device, making it easy to install and disassemble the protection device. In order to solve the problems of existing anti-fall protection devices in power pole tower operations, such as complicated operation steps, heavy weight, and difficulty in disassembly and installation, the present invention focuses on the lightweight of the pole tower operation protection device, the simplification of the installation/disassembly of the protection device, and the application of protection strategies. From the perspective of portability and multi-functionality, the protection device of the present invention is easy to install and disassemble, and does not affect normal tower operations.

Preferably, the cross-sectional areas of the rotatable magnetic ring, the first fixed magnetic ring, and the second fixed magnetic ring are all equal.

Preferably, the outer wall of the magnetic fluid chamber is provided with a limiting portion, the limiting portion is located between the first fixed magnetic ring and the second fixed magnetic ring, and the rotatable magnetic ring is located at the limiting portion.

Preferably, the rotatable magnetic ring includes a first half ring and a second half ring, and an attractable switch is installed between the first half ring and the second half ring. The first half ring Equal to the number of magnet blocks in the second half ring.

Preferably, the magnetic base further includes two magnet conductors, and the two magnet conductors are respectively provided at the two far ends of the first fixed magnetic ring and the second fixed magnetic ring. The through hole is provided through the magnetic conductor.

Preferably, the magnetic fluid chamber is provided with an elastic sealing film.

Preferably, the rotatable magnetic ring, the first fixed magnetic ring, and the second fixed magnetic ring are all permanent magnets.

Preferably, the number of magnet blocks in the rotatable magnetic ring, the first fixed magnetic ring, and the second fixed magnetic ring is 4 to 8.

Preferably, the safety buckle is also provided with a traction rope.

Preferably, the first fixed magnetic ring or the second fixed magnetic ring is also provided with a safety buckle, and the length of the traction rope penetrated by the safety buckle on the first fixed magnetic ring or the second fixed magnetic ring is less than The length of the traction rope passed through the safety buckle on the rotatable magnetic ring.

Compared with the prior art, the beneficial effects of the present invention are:

(1) The flexible installation method of magnetic fluid with fastening function under the action of magnetic field can reduce the structural friction loss of the protective device, facilitate the installation and disassembly of the protective device, and solve the application bottleneck of traditional anti-fall devices that excessively pursue single fall protection. problem, and designed a self-adaptive multi-modal human pole tower operation plan. Among them, the adaptability is reflected in the magnetic fluid that can wrap the climbing foot nails indiscriminately during the operation to achieve stability, and the multi-modal finger can use this The invented protection device performs operations in different states; thereby optimizing the problem of portable wearable applications under low-probability falling events.

(2) The present invention has the advantage of being easy to load and unload. It solves the cumbersome procedures of tying and unbundling safety ropes used for protective measures in traditional high-altitude operations, saves the operating physical strength of operation and maintenance personnel, and is more suitable for applications in pole and tower operations.

Description of the drawings

Figure 1 is a front view of a rotating magnetic anti-fall protection device according to the present invention;

Figure 2 is a left view of a rotating magnetic anti-fall protection device according to the present invention;

Figure 3 is a top view of a rotating magnetic fall protection device according to the present invention.

Figure 4 is a cross-sectional view along line A-A of Figure 2;

Figure 5 is the A-A cross-sectional view of the magnetic base;

Figure 6 is a B-B cross-sectional view of Figure 1;

Figure 7 is a C-C cross-sectional view of Figure 1;

Figure 8 is a structural diagram of the rotatable magnetic ring viewed from the left in Figure 1;

Figure 9 is a schematic diagram of a rotating magnetic anti-fall protection device in the non-locking protection state of the present invention;

Figure 10 is a schematic diagram of a rotating magnetic fall protection device in a locked protection state according to the present invention.

The description of the icon marks is as follows:

1. Magnetic base; 11. First fixed magnetic ring; 12. Second fixed magnetic ring; 13. Magnetic fluid chamber; 131. Limiting part; 14. Through hole; 15. Magnetizer; 2. Rotating magnetic ring; 21. First half ring; 22. Second half ring; 23. Switch; 3. Magnetic fluid; 4. Safety buckle; 41. Traction rope; 5. Magnetic block; 6. Foot nails.

The arrows in Figure 9 and Figure 10 indicate the direction of the magnetic field.

Detailed ways

The present invention will be further described below in conjunction with specific embodiments. The drawings are only for illustrative purposes, and represent only schematic diagrams rather than actual drawings, and cannot be understood as limitations of this patent; in order to better illustrate the embodiments of the present invention, some components of the drawings will be omitted. The enlargement or reduction does not represent the size of the actual product; it is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " "Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inside", "Outside", "Clockwise", "Counterclockwise", "Axis" The orientations or positional relationships indicated by "radial direction", "circumferential direction", etc. are based on the orientations or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply the device or device referred to. Elements must have a specific orientation, be constructed and operate in a specific orientation and therefore are not to be construed as limitations of the invention.

In addition, the terms “first” and “second” are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of indicated technical features. Therefore, features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise expressly and specifically limited.

In the present invention, unless otherwise clearly stated and limited, the terms "installation", "connection", "connection", "fixing" and other terms should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection. , or integrated into one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be an internal connection between two elements or an interactive relationship between two elements, unless otherwise specified restrictions. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

In the present invention, unless otherwise expressly stated and limited, a first feature being "on" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. touch. Furthermore, the terms "above", "above" and "above" the first feature is above the second feature may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is higher in level than the second feature. "Below", "below" and "beneath" the first feature to the second feature may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature has a smaller horizontal height than the second feature.

In the description of this specification, reference to the terms "one embodiment," "some embodiments," "an example," "specific examples," or "some examples" or the like means that specific features are described in connection with the embodiment or example. , structures, materials or features are included in at least one embodiment or example of the invention. In this specification, the schematic expressions of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, those skilled in the art may combine and combine different embodiments or examples and features of different embodiments or examples described in this specification unless they are inconsistent with each other.

Example 1

Figures 1 to 10 show a first embodiment of a rotary magnetic anti-fall protection device of the present invention, which includes a magnetic base 1 and a rotatable magnetic ring 2. The magnetic base 1 includes a first fixed magnetic ring 11, a second The fixed magnetic ring 12 and the magnetic fluid chamber 13 are equipped with magnetic fluid 3. The first fixed magnetic ring 11 and the second fixed magnetic ring 12 are respectively set on both ends of the magnetic fluid chamber 13. There is a central part of the magnetic fluid chamber 13 for The through hole 14 is socketed with the foot nail 6. The through hole 14 is provided through the first fixed magnetic ring 11 and the second fixed magnetic ring 12. The rotatable magnetic ring 2 is located between the first fixed magnetic ring 11 and the second fixed magnetic ring 12. space, and can be detachably set outside the magnetic fluid chamber 13, and is also provided with a safety buckle 4; the rotatable magnetic ring 2, the first fixed magnetic ring 11, and the second fixed magnetic ring 12 are each provided with a plurality of magnetic blocks 5. The number of magnet blocks 5 is an even number, and the number of magnet blocks 5 on the rotatable magnetic ring 2, the first fixed magnetic ring 11, and the second fixed magnetic ring 12 is equal, and the two adjacent magnetic blocks 5 are attracted to each other with opposite sexes. cloth, the magnet blocks 5 at corresponding positions of the first fixed magnetic ring 11 and the second fixed magnetic ring 12 are arranged in the same manner.

The directions of the magnetic fields generated by the first fixed magnetic ring 11, the second fixed magnetic ring 12 and the rotatable magnetic ring 2 are the same, that is, clockwise and counterclockwise; after rotation, the rotatable magnetic ring 2 is in contact with the first fixed magnetic ring 11 and The friction force generated by the staggered magnetic flux of the second fixed magnetic ring 12 and the magnetized magnetic fluid 3 provides a working protection basis for the protection device of the present invention.

As an embodiment of the present invention, the cross-sectional areas of the rotatable magnetic ring 2, the first fixed magnetic ring 11, and the second fixed magnetic ring 12 are all equal.

As a preferred embodiment, the rotatable magnetic ring 2, the first fixed magnetic ring 11, and the second fixed magnetic ring 12 all use circular rings with the same cross-sectional area, but the thickness of the three can be adjusted as needed. A fixed magnetic ring 11 and a second fixed magnetic ring 12 are set to have equal thicknesses, and the thickness of the rotatable magnetic ring 2 is set to be thicker than the thicknesses of the first fixed magnetic ring 11 and the second fixed magnetic ring 12 at both ends to obtain Better results.

As an embodiment of the present invention, a limiting portion 131 is provided on the outer wall of the magnetic fluid chamber 13. The limiting portion 131 is located between the first fixed magnetic ring 11 and the second fixed magnetic ring 12. The rotatable magnetic ring 2 is located at the limiting portion 131. at.

Preferably, the limiting part 131 is a groove, and the rotatable magnetic ring 2 is limited by the groove in the middle of the magnetic base 1, that is, between the first fixed magnetic ring 11 and the second fixed magnetic ring 12. The groove restricts the rotatable magnetic ring 2. The left and right movement range of magnetic ring 2.

As an embodiment of the present invention, there are four magnet blocks 5 in the rotatable magnetic ring 2, the first fixed magnetic ring 11, and the second fixed magnetic ring 12.

Preferably, the four magnet blocks 5 in the first fixed magnetic ring 11 and the second fixed magnetic ring 12 are distributed in half up and down, so as to facilitate the subsequent alignment of the magnet blocks 5 in the rotatable magnetic ring 2 with the first fixed magnetic ring. 11 and the magnet blocks 5 at corresponding positions of the second fixed magnet ring 12 are aligned, so that the rotatable magnet ring 2 can be easily opened.

As an embodiment of the present invention, the rotatable magnetic ring 2 includes a first half ring 21 and a second half ring 22, and a switch 23 that can be attracted is installed between the first half ring 21 and the second half ring 22. The number of magnet blocks 5 in the first half ring 21 and the second half ring 22 is equal.

The rotatable magnetic ring 2 is composed of an upper and lower part, a first half ring 21 and a second half ring 22. The switch 23 that can be attracted is an attracting magnet. The first half ring 21 and the second half ring 22 are surrounded by the attracting magnets. In the groove of the magnetic fluid chamber 13 on the magnetic base 1; after applying a vertical pulling force to the rotatable magnetic ring 2, it can be easily unlocked and disassembled from the magnetic base 1, which is conducive to simplifying the unlocking procedure of the present invention. .

As an embodiment of the present invention, the magnetic base 1 further includes two magnet conductors 15 , and the two magnet conductors 15 are respectively provided at the two far ends of the first fixed magnetic ring 11 and the second fixed magnetic ring 12 , the through hole 14 is provided through the magnetic conductor 15 .

The arrangement of the magnetic conductor 15 can facilitate the attraction of the magnetic fluid 3 in the magnetic fluid cavity 13 at both ends of the magnetic base 1, namely the first fixed magnetic ring 11 and the second fixed magnetic ring 12, which is beneficial to the effect of the magnetic fluid 3 on the magnetic field. Accelerate magnetization. Preferably, the material of the magnetic conductor 15 is high-strength and high-permeability 10# steel; both the first fixed magnetic ring 11 and the second fixed magnetic ring 12 are array-type fixed permanent magnet blocks, and the selected material is NdFeB with strong magnetic properties. The magnetic block is 5Nd2Fe14B, and the switch 23 that can be attracted uses the ferrite magnet block 5 with low magnetism. In its selection and design, the test magnetic field strength in the air is referred to about 0.1T; the magnetic fluid chamber 13 is sealed by a highly elastic rubber membrane; The material selected for magnetic fluid 3 is MRF132-DG.

As an embodiment of the present invention, the magnetic fluid chamber 13 is covered with an elastic sealing film.

The magnetic fluid chamber 13 is used to hold the magnetic fluid 3. Since the accumulation of the magnetic fluid 3 has a surface deformation effect, an elastic sealing film is used to seal the magnetic fluid chamber 13, which can make the magnetic fluid 3 have a better close effect, thereby making The accumulation effect of the magnetic fluid 3 in the cavity is better under fixed working conditions, which is also conducive to providing a sufficient working space for the density change process of the magnetic fluid 3.

As an embodiment of the present invention, the rotatable magnetic ring 2, the first fixed magnetic ring 11, and the second fixed magnetic ring 12 are all permanent magnets.

As an embodiment of the present invention, the safety buckle 4 is also provided with a traction rope 41 .

By binding the traction rope 41 to the human body, when the operator accidentally falls, he can also rely on the friction between the rotatable magnetic ring 2, the magnetic base 1 and the rubber nails 6 to obtain anti-fall protection.

working principle:

Among them, when the operator performs pole tower operations, he first puts the magnetic base 1 onto the climbing foot nail 6 from the end with the safety buckle 4 and the traction rope 41. At this time, due to the first fixed magnetic ring 11 and the second The respective N poles and S poles of the fixed magnetic ring 12 are arranged staggered to create a magnetic path. At this time, the magnetic fluid 3 is pulled by the self-magnetic field, and the magnetic fluid 3 gathers slightly, and most of it is still in a fluid state; the magnetic rotatable magnetic ring is The first half ring 21 and the second half ring 22 of 2 are installed in the middle of the magnetic fluid chamber 13 through a pull-on switch 23, and the left and right movable range of the rotatable magnetic ring 2 is limited by the limiter 131; The surface and the outer surface of the magnetic fluid chamber 13 are softly installed, and the rotatable magnetic ring 2 can be easily placed on the outer surface of the magnetic fluid chamber 13 .

When locking protection is required, the rotatable magnetic ring 2 is rotated clockwise. When the rotatable magnetic ring 2 rotates, the array-type first fixed magnetic ring 11 and the second fixed magnetic ring 12 are distributed in line with the N of the rotatable magnetic ring 2 pole and S pole corresponding to each other, gradually forming a complete magnetic field, generating a larger magnetic flux (the maximum rotation angle of the rotatable magnetic ring 2 does not exceed 90°); at this time, due to the enhanced magnetic field distribution, the magnetic fluid 3 is magnetized, so that The mechanical hardness of the magnetic fluid 3 increases, which in turn causes the magnetic base 1 to clamp the climbing foot nails 6. This will provide greater protective friction when the human body accidentally falls from high-altitude operations.

For unlocking applications, when the work in a certain area is completed, the traction rope 41 is pulled vertically upward, so that the suction switch 23 between the first half ring 21 and the second half ring 22 of the rotatable magnetic ring 2 is separated. That is, the rotatable magnetic ring 2 is opened. The rotatable magnetic ring 2 falls off the magnetic base 1. After the magnetic field weakens, the magnetization of the magnetic fluid 3 attenuates, the mechanical properties weaken, and returns to the fluid state. At this time, the magnetic base 1 can also be easily removed from the foot nail 6. Of course, , you can also just remove the rotatable magnetic ring 2 from the magnetic base 1 so that the magnetic base 1 is still installed on the foot nails 6 . The above is the principle and process of using a single protection device. Continuous operation can realize the function of protection and tracking throughout the tower operation.

Example 2

The following is a second embodiment of a rotary magnetic anti-fall protection device of the present invention. This embodiment is similar to Embodiment 1, except that the rotatable magnetic ring 2, the first fixed magnetic ring 11, the second fixed There are six magnetic blocks 5 in the magnetic ring 12 .

The 6 magnet blocks 5 are of equal size. Preferably, the 6 magnet blocks 5 are arranged to distribute 3 blocks along the upper and lower parts of the ring to facilitate the rotation of the rotatable magnetic ring 2 with the first fixed magnetic ring 11 and the second fixed magnetic ring 12 After alignment, the rotatable magnetic ring 2 is disassembled under the action of longitudinal traction force.

Example 3

The following is a second embodiment of a rotating magnetic anti-fall protection device of the present invention. This embodiment is similar to Embodiment 1, except that the first fixed magnetic ring 11 or the second fixed magnetic ring 12 is also provided with There is a safety buckle 4, and the length of the traction rope 41 passed through the safety buckle 4 on the first fixed magnetic ring 11 or the second fixed magnetic ring 12 is shorter than the length of the traction rope 41 passed through the safety buckle 4 on the rotatable magnetic ring 2 length.

In this embodiment, further, the first fixed magnetic ring 11 and/or the second fixed magnetic ring 12 of the magnetic base 1 are also provided with safety buckles 4 and traction ropes 41 .

The length of the safety buckle 4 and the traction rope 41 connected to the rotatable magnetic ring 2 is slightly longer than the length of the safety buckle 4 and the traction rope 41 connected to the magnetic base 1. When the human body falls, the traction on the magnetic base 1 will be When the rope 41 is straightened, the traction rope 41 on the rotatable magnetic ring 2 is still in a relaxed state to prevent the first half ring 21 and the second half ring 22 of the rotatable magnetic ring 2 from being mistakenly inserted during the falling action of the human body. The pull-on switch 23 is dragged and separated, causing the magnetization of the magnetic fluid 3 to attenuate and the mechanical properties to weaken, causing a safety accident.

Obviously, the above-mentioned embodiments of the present invention are only examples to clearly illustrate the present invention, and are not intended to limit the implementation of the present invention. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. An exhaustive list of all implementations is neither necessary nor possible. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the claims of the present invention.

Claims (10)

1. A rotating magnetic anti-fall protection device, characterized in that it includes a magnetic base (1) and a rotatable magnetic ring (2). The magnetic base (1) includes a first fixed magnetic ring (11), a second A fixed magnetic ring (12) and a magnetic fluid chamber (13) equipped with magnetic fluid (3). The first fixed magnetic ring (11) and the second fixed magnetic ring (12) are respectively sleeved on the At both ends of the magnetic fluid chamber (13), the middle part of the magnetic fluid chamber (13) is provided with a through hole (14) for socketing with the foot nail (6), and the through hole (14) penetrates the first fixed magnetic ring. (11) and a second fixed magnetic ring (12) are provided. The rotatable magnetic ring (2) is located between the first fixed magnetic ring (11) and the second fixed magnetic ring (12), and is detachably sleeved on A safety buckle (4) is provided outside the magnetic fluid chamber (13); the rotatable magnetic ring (2), the first fixed magnetic ring (11), and the second fixed magnetic ring (12) are each provided with a plurality of magnetic The number of magnetic blocks (5) is an even number, and the magnetic blocks (5) on the rotatable magnetic ring (2), the first fixed magnetic ring (11), and the second fixed magnetic ring (12) ) are equal in number, two adjacent magnet blocks (5) are oppositely attracted, and the magnet blocks (5) at corresponding positions of the first fixed magnetic ring (11) and the second fixed magnetic ring (12) are arranged in the same manner. 2. The rotary magnetic anti-fall protection device according to claim 1, characterized in that the rotatable magnetic ring (2), the first fixed magnetic ring (11), the second fixed magnetic ring ( 12) have the same cross-sectional area. 3. The rotating magnetic anti-fall protection device according to claim 1 or 2, characterized in that a limiting portion (131) is provided on the outer wall of the magnetic fluid chamber (13), and the limiting portion (131) is located at the third Between a fixed magnetic ring (11) and a second fixed magnetic ring (12), the rotatable magnetic ring (2) is located at the limiting portion (131). 4. The rotary magnetic anti-fall protection device according to claim 3, characterized in that the rotatable magnetic ring (2) includes a first half ring (21) and a second half ring (22), and the third half ring (22) An attractable switch (23) is also installed between the half ring (21) and the second half ring (22). The magnetic switch (23) in the first half ring (21) and the second half ring (22) The number of blocks (5) is equal. 5. The rotary magnetic anti-fall protection device according to claim 1, characterized in that the magnetic base (1) further includes a magnetic conductor (15), and there are two magnetic conductors (15), and two conductors (15). Magnets (15) are respectively provided at two distal ends of the first fixed magnetic ring (11) and the second fixed magnetic ring (12), and the through holes (14) are provided through the magnetic conductive body (15). 6. The rotary magnetic anti-fall protection device according to claim 1, characterized in that an elastic sealing film is provided around the magnetic fluid chamber (13). 7. The rotary magnetic anti-fall protection device according to claim 1, characterized in that the rotatable magnetic ring (2), the first fixed magnetic ring (11), the second fixed magnetic ring ( 12) All are permanent magnets. 8. The rotary magnetic anti-fall protection device according to claim 1, characterized in that the rotatable magnetic ring (2), the first fixed magnetic ring (11), the second fixed magnetic ring ( The number of magnetic blocks (5) in 12) is 4 to 8. 9. The rotating magnetic anti-fall protection device according to claim 1, characterized in that a traction rope (41) is also inserted into the safety buckle (4). 10. The rotating magnetic anti-fall protection device according to claim 1, characterized in that the first fixed magnetic ring (11) or the second fixed magnetic ring (12) is also provided with a safety buckle ( 4), and the length of the traction rope (41) passed through the safety buckle (4) on the first fixed magnetic ring (11) or the second fixed magnetic ring (12) is shorter than the safety buckle on the rotatable magnetic ring (2) (4) The length of the traction rope (41) worn.