Portable transformer anti-falling device based on permanent magnet adsorption
By using a portable device that evenly distributes permanent magnet lifters on the surface of the transformer, the problems of poor versatility and insufficient safety of transformer hanging point devices are solved. It provides stable and safe hanging points, is suitable for different types of transformers, reduces costs and installation difficulty, and improves safety and stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUHAN HUAYUAN ELECTRIC POWER GRP CO LTD
- Filing Date
- 2025-04-23
- Publication Date
- 2026-05-19
AI Technical Summary
Existing transformer mounting devices suffer from poor versatility and may damage the transformer flange surface, and do not meet the safety requirements of high mounting and low usage.
A portable transformer fall protection device based on permanent magnet adsorption is adopted. The permanent magnet lifters are evenly distributed on the extension of the base and fixed to the transformer surface through the principle of permanent magnet adsorption, providing a stable safety hanging point. The adjustable lifting rings can meet the needs of different construction positions.
It achieves wide applicability to different types of transformers, reduces equipment costs and installation difficulty, improves safety and stability, avoids damage to transformers, and ensures the safety of construction personnel.
Smart Images
Figure CN224263889U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of transformer technology, specifically to a portable transformer anti-fall device based on permanent magnet adsorption. Background Technology
[0002] In the power industry, transformers are common electrical equipment, and their installation and maintenance often require working at heights. According to the "State Grid Corporation of China Power Safety Work Regulations," when working at heights, the hooks or ropes of safety belts should be attached to sturdy and secure structures or to steel wire ropes specifically designed for attaching safety belts, and a high-attachment, low-use method should be adopted. However, few transformer structures meet the high-attachment, low-use requirement, and workers often have to use the transformer riser as an attachment point. This method not only affects work efficiency but also poses safety hazards.
[0003] Currently, existing transformer safety anchor devices mainly involve installing fixing rods on the transformer flanges, providing safety belt anchor points for construction workers by adding fixing rods to both ends of the flange face. However, this device has the following problems: First, the flange face dimensions and positions vary between different transformer manufacturers, resulting in poor device versatility; second, installing the fixing rods can easily damage the transformer flange face, potentially creating a hidden danger of oil leakage during later transformer operation. Therefore, there is an urgent need for a new device that can provide safe anchor points and has better versatility, making it widely applicable to different transformer models. Summary of the Invention
[0004] This application provides a portable transformer fall protection device based on permanent magnet adsorption, which can provide a safe attachment point and has good versatility, making it widely applicable to different types of transformers.
[0005] This application provides a portable transformer fall protection device based on permanent magnet adsorption, characterized in that it includes: a base with at least six extensions extending outward in the circumferential direction, wherein the spacing between two adjacent extensions is equal, and a permanent magnet lifter for adsorbing and fixing the transformer during use is detachably installed at the bottom of each extension; a column with its bottom end located at the center of the base, the axis of the column being perpendicular to the plane of the top surface of the base, and an adjustable hanging ring at the top of the column for suspending a safety belt.
[0006] In some embodiments, the extension includes a first portion and a second portion, the first portion being formed by extending outward from the edge of the base, the end of the second portion being hinged to the end of the first portion, and the permanent magnet lifter being detachably mounted on the bottom of the second portion.
[0007] In some embodiments, when in use, a permanent magnet lifter is installed at the bottom of the second part, and the second part and the first part are arranged on the same plane, or there is a certain angle between the second part and the first part.
[0008] In some embodiments, when not in use, the permanent magnet lifter is not installed at the bottom of the second part, and the second part is folded over the top surface of the first part.
[0009] In some embodiments, the first part and the second part are hinged together using a hinge.
[0010] In some embodiments, the top surface of the second part is provided with a first threaded hole that penetrates the bottom surface, and the top surface of the permanent magnet lifter is provided with a second threaded hole in the form of a blind hole. The second part and the permanent magnet lifter are connected by a knob passing through the first threaded hole and the second threaded hole.
[0011] In some embodiments, the knob includes a helical rod and a steering wheel, the steering wheel being fixed to one end of the helical rod, and the other end of the helical rod passing through the first threaded hole and the second threaded hole.
[0012] In some embodiments, the steering wheel is a ring structure, with a plurality of support columns fixedly provided on its inner ring wall, and the steering wheel and the auger are fixedly connected by the support columns.
[0013] In some embodiments, the top end face of the column is further provided with a lifting ring base for adjusting the direction of the lifting ring, and the lifting ring is fixed to the top of the lifting ring base.
[0014] In some embodiments, the tail end of the column is further provided with an annular support, the annular support being trumpet-shaped, with its smaller inner diameter opening fixed to the outer wall of the column and its larger inner diameter opening fixed to the top surface of the base.
[0015] The beneficial effects of the technical solutions provided in this application include:
[0016] When in use, first fix the permanent magnet lifter at the bottom of the extension, then place the device on the surface of the transformer. Using the permanent magnet adsorption principle of the permanent magnet lifter, the base and column are adsorbed and fixed to the surface of the transformer. Then, the construction personnel can securely hang the safety belt buckle or rope on the top ring of the column. As the construction position changes, the direction of the ring is adjusted to ensure the smooth progress of the construction without damaging the transformer.
[0017] The system comprises at least six extensions extending outward circumferentially from the base, with equal spacing between adjacent extensions. Each extension has a detachable permanent magnet lifter at its bottom for attracting and securing the transformer during use. In operation, the permanent magnet lifters are evenly distributed across the transformer surface, collectively attracting and securing the transformer using the principle of permanent magnet adsorption. This system is suitable for transformers of different models and manufacturers, eliminating the need for customized installation based on the transformer's specific structure. This reduces equipment costs and installation difficulty, broadens the system's applicability, and ensures the stability of the column and lifting rings, thereby guaranteeing safety when a safety belt is suspended.
[0018] In addition, the permanent magnet lifter is detachably installed at the bottom of the extension. When in use, the permanent magnet lifter is installed at the bottom of the extension and the device is attached to the surface of the transformer. When not in use, it can be removed, which facilitates the storage and transportation of the device.
[0019] By centering the base of the upright and ensuring its axis is perpendicular to the plane of the base's top surface, the stability of the upright is ensured when bearing the tension of the safety belt. Even if workers experience some swaying or changes in tension during operation, the upright remains balanced and is not prone to tipping over, providing continuous and stable safety protection for workers. An adjustable lifting ring at the top of the upright allows workers to flexibly adjust the ring's direction according to their actual work position and posture, achieving the optimal suspension angle and position for the safety belt. This better meets the requirement of high-hanging, low-use, improving operational convenience and safety. Attached Figure Description
[0020] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0021] Figure 1 This is a schematic diagram of a portable transformer fall protection device based on permanent magnet adsorption in an embodiment of this application;
[0022] Figure 2 for Figure 1 A schematic diagram of the base when the device is not in use;
[0023] Figure 3 for Figure 1 Exploded view at point A;
[0024] Figure 4 for Figure 1 The exploded view at point B in the middle.
[0025] In the picture:
[0026] 1. Base; 11. Extension; 111. First part; 112. Second part; 1121. First threaded hole; 12. Permanent magnet lifter; 121. Second threaded hole; 13. Hinge; 14. Knob; 141. Screw rod; 142. Steering wheel; 1421. Support column;
[0027] 2. Column; 21. Lifting ring; 22. Lifting ring base;
[0028] 3. Ring support. Detailed Implementation
[0029] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present application.
[0030] This application provides a portable transformer fall protection device based on permanent magnet adsorption, which can provide a safe attachment point and has good versatility, making it widely applicable to different types of transformers.
[0031] See Figure 1 , Figure 1 This is a schematic diagram of a portable transformer fall protection device based on permanent magnet adsorption, as described in an embodiment of this application. Figure 1 As shown, in one embodiment, the portable transformer fall protection device based on permanent magnet adsorption mainly uses permanent magnet adsorption to attach and fix it to the surface of the transformer, providing construction workers with a stable and safe safety belt attachment point. The device includes a base 1 and a column 2, which are fixedly connected, and the attachment point is located on the column 2. In use, the base 1 is attached and fixed to the surface of the transformer, and construction workers can hang their safety belt hooks or ropes on the column 2 to perform their work.
[0032] Specifically, the base 1 has at least six extensions 11 extending outward in the circumferential direction, with equal spacing between adjacent extensions 11. A permanent magnet lifter 12 for adsorbing and fixing the transformer during use is detachably installed at the bottom of each extension 11. From a mechanical perspective, at least six extensions 11 are required to achieve force balance and ensure the device can firmly adhere to the transformer surface. When in use, the permanent magnet lifter 12 is installed at the bottom of the extension 11, adsorbing and fixing the device to the transformer surface. When not in use, the permanent magnet lifter 12 can be detached from the bottom of the extension 11 for easy transportation and storage.
[0033] The bottom end of the upright column 2 is located at the center of the base 1. The axis of the upright column 2 is perpendicular to the plane containing the top surface of the base 1, and the top of the upright column 2 is equipped with an adjustable hanging ring 21 for suspending a safety belt. The upright column 2 can be cylindrical or square and has a certain length. The bottom end of the upright column 2 is welded to the base 1. The hanging ring 21 is adjustablely and fixedly installed at the top of the upright column 2 and can rotate 360 degrees around the axis of the upright column 2.
[0034] In this embodiment, when in use, the permanent magnet lifter 12 is first fixedly installed at the bottom of the extension 11, and then the device is placed on the surface of the transformer. Using the permanent magnet adsorption principle of the permanent magnet lifter 12, the base 1 and the column 2 are adsorbed and fixed on the surface of the transformer. Then, the construction personnel can securely hang the safety belt buckle or rope on the top ring 21 of the column 2. As the construction position changes, the direction of the ring 21 is adjusted to ensure the smooth progress of the construction without damaging the transformer.
[0035] The base 1 has at least six extensions 11 extending outward in the circumference, with equal spacing between adjacent extensions 11. A permanent magnet lifter 12 is detachably installed at the bottom of each extension 11 for attracting and fixing the transformer during use. In use, the permanent magnet lifters 12 are evenly distributed on the surface of the transformer, using the principle of permanent magnet attraction to jointly attract and fix the transformer. This design is applicable to transformers of different models and manufacturers, eliminating the need for customized installation based on the specific structure of the transformer. This reduces equipment costs and installation difficulty, increases the applicability of the device, and ensures the stability of the column 2 and lifting ring 21, thereby guaranteeing safety when the safety belt is suspended.
[0036] In addition, the permanent magnet lifter 12 is detachably installed at the bottom of the extension 11. When in use, the permanent magnet lifter 12 is installed at the bottom of the extension 11 and the device is attracted and fixed to the surface of the transformer. When not in use, it can be removed, which facilitates the storage and transportation of the device.
[0037] By positioning the bottom of the upright 2 at the center of the base 1 and ensuring that the axis of the upright 2 is perpendicular to the plane containing the top surface of the base 1, the stability of the upright 2 when subjected to the tension of the safety belt is ensured. Even if the construction worker experiences some swaying or changes in tension during operation, the upright 2 can remain balanced and is not prone to tipping over, providing continuous and stable safety protection for the construction worker. The upright 2 has an adjustable lifting ring 21 at its top, allowing the construction worker to flexibly adjust the direction of the lifting ring 21 according to the actual construction position and posture, achieving the optimal suspension angle and position of the safety belt, better meeting the requirements of high-hanging and low-use, and improving the convenience and safety of the operation.
[0038] Furthermore, in one embodiment, see... Figure 1 and Figure 2 , Figure 2 for Figure 1 A schematic diagram of the base when the device is not in use. Figure 1 and Figure 2 As shown, the extension 11 includes a first part 111 and a second part 112. The first part 111 extends outward from the edge of the base 1, and the end of the second part 112 is hinged to the end of the first part 111. The permanent magnet lifter 12 is detachably installed at the bottom of the second part 112. In this embodiment, the first part 111 and the base 1 are integrally designed and extend outward from the edge of the base 1. The second part 112 is hinged to the first part 111, which can be achieved by using a hinge 13 or a hinge mechanism. With the above technical solution, when using a transformer with an irregular or uneven surface, the permanent magnet lifter 12 can be adjusted to the optimal adsorption angle and position to ensure the best adsorption effect and improve the stability and accuracy of installation. In addition, regardless of the transformer model or specification, or in different installation environments, the angle between the second part 112 and the first part 111 can be adjusted to allow the permanent magnet lifter 12 to better fit the surface of the transformer, achieving reliable adsorption and fixation, thus expanding the applicability of the device.
[0039] like Figure 2 As shown, when the device is not in use, the second part 112 can be rotated to a position where it folds with the first part 111, reducing the overall size of the device, making it easier to store and transport, and reducing storage space and transportation costs. During transportation or storage, the permanent magnet lifter 12 is protected to a certain extent, which can reduce the possibility of damage to the permanent magnet lifter 12 due to collisions, friction, etc., and extend its service life.
[0040] Furthermore, in one embodiment, such as Figure 1 As shown, in use, a permanent magnet lifter 12 is installed at the bottom of the second part 112. The second part 112 and the first part 111 are arranged on the same plane, or there is a certain angle between the second part 112 and the first part 111. In this embodiment, when in use, a permanent magnet lifter 12 is installed at the bottom of the second part 112. If the second part 112 and the first part 111 are arranged on the same plane, it means that the position where the device is fixed for adsorption is a large flat surface. The surface of the transformer is very regular and flat, and each permanent magnet lifter 12 can be evenly distributed on the surface of the transformer, improving the stability of adsorption. If there is a certain angle between the second part 112 and the first part 111, it means that the position where the device is fixed for adsorption is an irregular surface. The surface of the transformer is irregular or uneven. By flexibly adjusting the size of the angle, the position and angle of each permanent magnet lifter 12 can be changed to ensure stable adsorption of the transformer.
[0041] Furthermore, in one embodiment, such as Figure 2 As shown, when not in use, the permanent magnet lifter 12 is not installed at the bottom of the second part 112, and the second part 112 is folded and disposed on the top surface of the first part 111. In this embodiment, the space occupied by the above technical solution can be significantly reduced, facilitating transportation and storage. During transportation or storage, the permanent magnet lifter 12 is protected to a certain extent, which can reduce the possibility of damage to the permanent magnet lifter 12 due to collisions, friction, etc., and extend its service life.
[0042] Furthermore, in implementation, such as Figure 1 or Figure 2 As shown, the first part 111 and the second part 112 are hinged together using a hinge 13. In this embodiment, the hinge 13 has good structural strength and stability, and can firmly connect the first part 111 and the second part 112. Furthermore, when the device needs to adsorb and fix a transformer with an irregular or uneven surface, the angle between the first part 111 and the second part 112 can be changed by using the hinge 13. The size of the angle can be flexibly adjusted to change the position and angle of each permanent magnet lifter 12, ensuring stable adsorption of the transformer. In addition, it is also beneficial for the second part 112 to be folded onto the surface of the first part 111, facilitating transportation and storage.
[0043] Furthermore, in the implementation process, see... Figure 3 , Figure 3 for Figure 1 The exploded diagram at point A in the middle. (See diagram below.) Figure 3 As shown, the top surface of the second part 112 has a first threaded hole 1121 penetrating the bottom surface, and the top surface of the permanent magnet lifter 12 has a second threaded hole 121 in the form of a blind hole. The second part 112 and the permanent magnet lifter 12 are connected by a knob 14 passing through the first threaded hole 1121 and the second threaded hole 121. In this embodiment, with the above technical solution, the permanent magnet lifter 12 can be installed at the bottom of the second part 112 simply by screwing the knob 14 into the threaded hole. Furthermore, due to the threaded connection, it can provide a strong fastening force, so that the permanent magnet lifter 12 can be firmly fixed to the surface of the transformer when it is working.
[0044] Furthermore, in one embodiment, such as Figure 3As shown, the knob 14 includes a screw rod 141 and a steering wheel 142. The steering wheel 142 is fixed to one end of the screw rod 141, and the other end of the screw rod 141 passes through a first threaded hole 1121 and a second threaded hole 121. In this embodiment, the steering wheel 142 can be easily rotated to drive the screw rod 141 to rotate. Compared with directly operating the screw rod 141, the steering wheel 142 provides a better grip and force application point. By slowly and evenly rotating the steering wheel 142, the screw rod 141 can be precisely controlled to achieve precise adjustment of the installation position and tightness of the permanent magnet lifter 12.
[0045] Furthermore, in one embodiment, such as Figure 3 As shown, the steering wheel 142 has a ring-shaped structure, with multiple support pillars 1421 fixedly mounted on its inner ring wall. The steering wheel 142 and the auger rod 141 are fixedly connected via the support pillars 1421. In this embodiment, by setting the steering wheel 142 to a ring-shaped structure and fixing multiple support pillars 1421 on its inner ring wall, and by fixing the steering wheel 142 and the auger rod 141 via the support pillars 1421, it is easier for the operator to grip, providing better control. The operator can easily grip different positions of the steering wheel 142 as needed, achieving flexible steering operation and improving the convenience and comfort of operation. Furthermore, the multiple support pillars 1421 fix the steering wheel 142 and the auger rod 141, ensuring that the force on the steering wheel 142 is evenly distributed on the auger rod 141, enhancing the stability of the connection between the steering wheel 142 and the auger rod 141, enabling it to withstand greater torque and external forces, and preventing deformation or damage.
[0046] Furthermore, in the implementation process, see... Figure 4 , Figure 4 for Figure 1 The exploded diagram at point B. (See diagram below.) Figure 4 As shown, a lifting ring base 22 for adjusting the direction of the lifting ring 21 is also provided on the top end face of the column 2, and the lifting ring 21 is fixed to the top of the lifting ring base 22. In this embodiment, the lifting ring base 22 can provide a stable and easy-to-operate platform for adjusting the direction of the lifting ring 21, realizing precise adjustment of the direction of the lifting ring 21, and the connection between the lifting ring base 22 and the column 2 increases the stability of the connection.
[0047] Furthermore, in one embodiment, such as Figure 1As shown, the tail end of the column 2 is also provided with an annular support 3. The annular support 3 is flared in shape, with its smaller inner diameter opening fixed to the outer wall of the column 2 and its larger inner diameter opening fixed to the top surface of the base 1. In this embodiment, the smaller inner diameter opening of the annular support 3 is welded to the outer wall of the column 2, and the larger inner diameter opening is welded to the top surface of the base 1. Through the above technical solution, the stable connection between the column 2 and the base 1 can be further enhanced, the force borne by the column 2 can be effectively distributed, the stability of the entire device can be enhanced, the risk of the column 2 shaking or tipping over due to external forces can be reduced, and the safety of the operators can be ensured.
[0048] In the description of this application, it should be noted that the terms "upper," "lower," 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 this application and simplifying the description, and 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 application. Unless otherwise expressly specified and limited, 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 communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.
[0049] It should be noted that in this application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0050] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.
Claims
1. A portable transformer fall protection device based on permanent magnet adsorption, characterized in that, include: The base (1) has at least six extensions (11) extending outward in the circumferential direction, and the spacing between two adjacent extensions (11) is equal. The bottom of each extension (11) is detachably equipped with a permanent magnet lifter (12) for adsorbing and fixing the transformer during use. The column (2) is located at the center of the base (1). The axis of the column (2) is perpendicular to the plane of the top surface of the base (1). The top of the column (2) is provided with an adjustable hanging ring (21) for suspending the safety belt.
2. The portable transformer fall protection device based on permanent magnet adsorption as described in claim 1, characterized in that, The extension (11) includes a first part (111) and a second part (112), the first part (111) being formed by extending outward from the edge of the base (1), the end of the second part (112) being hinged to the end of the first part (111), and the permanent magnet lifter (12) being detachably mounted on the bottom of the second part (112).
3. The portable transformer fall protection device based on permanent magnet adsorption as described in claim 2, characterized in that, In use, a permanent magnet lifter (12) is installed at the bottom of the second part (112), and the second part (112) and the first part (111) are set on the same plane, or there is a certain angle between the second part (112) and the first part (111).
4. The portable transformer fall protection device based on permanent magnet adsorption as described in claim 2, characterized in that, When not in use, the permanent magnet lifter (12) is not installed at the bottom of the second part (112), and the second part (112) is folded and disposed on the top surface of the first part (111).
5. The portable transformer fall protection device based on permanent magnet adsorption as described in claim 2, characterized in that, The first part (111) and the second part (112) are hinged together by a hinge (13).
6. The portable transformer fall protection device based on permanent magnet adsorption as described in claim 2, characterized in that, The top surface of the second part (112) is provided with a first threaded hole (1121) that penetrates the bottom surface, and the top surface of the permanent magnet lifter (12) is provided with a second threaded hole (121) in the form of a blind hole. The second part (112) and the permanent magnet lifter (12) are connected by a knob (14) passing through the first threaded hole (1121) and the second threaded hole (121).
7. The portable transformer fall protection device based on permanent magnet adsorption as described in claim 6, characterized in that, The knob (14) includes a screw rod (141) and a steering wheel (142). The steering wheel (142) is fixed to one end of the screw rod (141), and the other end of the screw rod (141) passes through the first threaded hole (1121) and the second threaded hole (121).
8. The portable transformer fall protection device based on permanent magnet adsorption as described in claim 7, characterized in that, The steering wheel (142) has a ring structure, and a plurality of support columns (1421) are fixedly provided on its inner ring wall. The steering wheel (142) and the auger (141) are fixedly connected by the support columns (1421).
9. The portable transformer fall protection device based on permanent magnet adsorption as described in claim 1, characterized in that, The top end face of the column (2) is also provided with a lifting ring base (22) for adjusting the direction of the lifting ring (21), and the lifting ring (21) is fixed to the top of the lifting ring base (22).
10. The portable transformer fall protection device based on permanent magnet adsorption as described in claim 1, characterized in that, The tail end of the column (2) is also provided with an annular support (3). The annular support (3) is shaped like a trumpet. Its small inner diameter opening is fixed to the outer wall of the column (2), and its large inner diameter opening is fixed to the top surface of the base (1).