Lifting device for transformer installation

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By designing the chains of the distance adjustment and quick disassembly of the lifting mechanism, the problems of inconvenience in lifting and cumbersome disassembly during the installation of the transformer are solved, and a safe and rapid installation and disassembly process is achieved.

CN223117918UActive Publication Date: 2025-07-18TAIAN GUANGMING ELECTRIC POWER SERVICE CO LTD

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Patent Information

Application Number: CN202422466134.4
Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner
Filing Date: 2024-10-12
Publication Date: 2025-07-18
Estimated Expiration: 2034-10-12

AI Technical Summary

Technical Problem

During the installation of the transformer, the existing lifting device cannot adapt to the complex environment where other structures are on the pole, resulting in inconvenient lifting and safety risks, and the traditional disassembly method is cumbersome.

Method used

A chain with a distance adjustment mechanism and a quick-removing lifting mechanism is designed. The distance adjustment mechanism is composed of threaded sleeves, flat sleeves, hexagonal blocks and double-head hooks, which can adjust the length of the chain and adapt to special environments; the quick-removing lifting mechanism is quickly disassembled through special-shaped plates, turntables and hoisting rings.

Benefits of technology

It realizes safe and fast lifting and disassembly of transformers in complex environments, avoiding the inconvenience and risks of traditional methods.

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Abstract

The utility model provides a lifting device for installing a transformer, which belongs to the technical field of instruments, and comprises a chain, the bottom end of the chain is fixedly connected with a hanging scaffold, a chain body of the chain is provided with a distance adjusting mechanism, and the distance adjusting mechanism comprises a threaded sleeve, a flat sleeve, a hexagonal block, a handheld rod and a double-head hook, the inner ring of the threaded sleeve is in threaded connection with a threaded shaft, and a smooth shaft is sleeved with the flat sleeve through a bearing. By arranging the distance adjusting mechanism, when the transformer is installed, due to the fact that a telegraph pole where the transformer is located is provided with other parts, especially other structures are arranged over the transformer, a pure hoisting device is adopted, and much inconvenience and even danger can be caused by hoisting from top to bottom regardless of the vertical distance; at the moment, the chain with the distance adjusting mechanism is adopted, the hoisting assembly and the transformer can be maintained at a short distance for hoisting, and particularly, the distance adjusting mechanism can change the length of the chain to adapt to more special installation environments, for example, other assembly parts are arranged on the top of the transformer.

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Description

Technical Field

[0001] The utility model relates to the technical field of equipment, in particular to a lifting device for transformer installation. Background Art

[0002] Transformer is an electrical device that plays a vital role in the power system. It mainly realizes the conversion between different voltage levels through the principle of electromagnetic induction. In the process of power transmission, the electricity generated by the power plant usually needs to pass through the transformer to increase the voltage so as to reduce the line loss during long-distance transmission. When the electricity reaches the user end, it needs to pass through the transformer to reduce the voltage for use in various electrical equipment. The transformer is composed of main components such as iron core and winding. The iron core usually uses high magnetic permeability materials to improve the efficiency of electromagnetic induction. The winding is divided into primary winding and secondary winding, which are connected to circuits of different voltage levels respectively. It has the characteristics of high efficiency, reliability, stability, etc., and can operate under various complex environmental conditions. With the continuous advancement of science and technology, the performance of transformers is also constantly improving, and it is developing in the direction of more energy saving, environmental protection and intelligence.

[0003] During the specific installation process, especially when replacing the transformer, some poles have other structures on the original transformer, and it is not possible to remove the other structures for installation. In this case, the common lifting device may have the problem that the lifting rope chain is too long, which affects the normal installation. After the installation is completed, under the same complex installation environment, the existing simple structure of the hook is not conducive to quick disassembly, making the disassembly process more cumbersome. Utility Model Content

[0004] In order to make up for the above deficiencies, the utility model provides a lifting device for transformer installation that overcomes the above technical problems or at least partially solves the above problems.

[0005] The utility model is achieved in this way:

[0006] The utility model provides a lifting device for transformer installation, comprising a chain, a hanging plate is fixedly connected to the bottom end of the chain, and a distance adjustment mechanism is provided on the chain body of the chain;

[0007] The distance adjustment mechanism comprises:

[0008] A threaded sleeve, wherein the inner ring of the threaded sleeve is threadedly connected to a threaded shaft;

[0009] A flat sleeve, wherein a smooth shaft is sleeved inside the flat sleeve via a bearing;

[0010] A hexagonal block, one side of which is fixedly connected to the end of the threaded shaft;

[0011] A hand grip rod, the two ends of which are respectively fixedly connected to the threaded sleeve and the proximal end of the cylinder body of the flat sleeve;

[0012] A double-headed hook is fixedly connected to the threaded shaft and the end of the smooth shaft.

[0013] In one embodiment of the utility model, a quick-release lifting mechanism is provided at the bottom of the hanging plate, and the quick-release lifting mechanism includes a special-shaped plate, which is fixedly connected to the lower surface of the hanging plate, and the side surface of the plate body of the special-shaped plate is provided with a first groove and a second groove.

[0014] In an embodiment of the present invention, the first slot is vertically opened on the side surface of the special-shaped plate, and the second slot is obliquely opened on the side surface of the special-shaped plate.

[0015] In an embodiment of the utility model, a spring is arranged in the first slot, a slot block is arranged at the bottom of the spring, and a toggle slot is arranged on the slot block.

[0016] In an embodiment of the utility model, a toggle rod is provided in the second slot via a movable shaft, and an end of the toggle rod is located in the toggle slot.

[0017] In an embodiment of the utility model, a lifting ring is fixedly connected to the bottom of the special-shaped plate, the inner ring of the lifting ring is clamped with a turntable via an annular slide rail, and a fourth slot is provided on the side of the turntable.

[0018] In an embodiment of the present invention, a third slot is formed on the upper portion of the front surface of the turntable and is located directly below the first slot.

[0019] In an embodiment of the utility model, the double-headed hook is hooked with the lock buckle of the chain.

[0020] The utility model provides a lifting device for transformer installation, and its beneficial effects include:

[0021] 1. By setting up a distance-adjusting mechanism, when installing the transformer, since there are other components on the pole where the transformer is located, especially when there are other structures directly above the transformer, using a simple lifting device and lifting from top to bottom without paying attention to the upper and lower distances will bring many inconveniences and even dangers. At this time, a chain with a distance-adjusting mechanism can be used to keep the lifting components and the transformer at a closer distance for lifting. In particular, the distance-adjusting mechanism can change the length of the chain to adapt to more special installation environments, such as when there are other components on the top of the transformer.

[0022] 2. By setting up a quick-disassembly lifting mechanism, it is convenient for the hoisted transformer to reach the designated location. After the transformer as a whole contacts the load-bearing surface, it only needs to be pressed slightly for quick disassembly. After arriving at the designated location, the transformer can be quickly released by a simple pressing operation, avoiding the cumbersome steps and potential risks of traditional disassembly methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 It is a structural schematic diagram provided by an embodiment of the utility model;

[0025] Figure 2 A bottom perspective view provided for an embodiment of the utility model;

[0026] Figure 3 A schematic diagram of the structure of a quick-release lifting mechanism provided in an embodiment of the utility model;

[0027] Figure 4 This is a schematic diagram of the distance adjustment mechanism structure provided in an embodiment of the utility model.

[0028] In the figure: 1. chain; 101. lifting plate; 2. distance adjustment mechanism; 201. threaded sleeve; 202. flat sleeve; 203. threaded shaft; 204. smooth shaft; 205. hexagonal block; 207. hand grip; 208. double-head hook; 3. quick-release lifting mechanism; 301. special-shaped plate; 3011. first slot; 3012. second slot; 302. spring; 303. slotted block; 3031. toggle slot; 304. toggle rod; 305. lifting ring; 306. turntable; 3061. third slot; 3062. fourth slot. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. Obviously, the described implementation is a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Example

[0030] ReferenceFigures 1 - 4 , this technical solution provides a lifting device for transformer installation, which includes a chain 1. A hanging plate 101 is fixedly connected to the bottom end of the chain 1. A distance adjustment mechanism 2 is provided on the chain body of the chain 1. The distance adjustment mechanism 2 includes: a threaded sleeve 201, a threaded shaft 203 is threadedly connected to the inner ring of the threaded sleeve 201, a flat sleeve 202, a smooth shaft 204 is sleeved in the flat sleeve 202 through a bearing, a hexagonal block 205, one side of the hexagonal block 205 is fixedly connected to the end of the threaded shaft 203, a hand-held rod 207, both ends of the hand-held rod 207 are fixedly connected to the proximal ends of the barrel of the threaded sleeve 201 and the flat sleeve 202 respectively, a double-headed hook 208, the double-headed hook 208 is fixedly connected to the ends of the threaded shaft 203 and the smooth shaft 204. By setting the distance adjustment mechanism 2, when installing a transformer, since there are other components on the utility pole where the transformer is located, especially when there are other structures directly above the transformer, using a simple lifting device to lift from top to bottom regardless of the vertical distance will cause many inconveniences and even pose risks. At this time, using the chain 1 with the distance adjustment mechanism 2 can keep the lifting component and the transformer at a relatively close distance for lifting. In particular, the distance adjustment mechanism 2 can change the length of the chain 1 to adapt to many special installation environments. For example, when there are other component parts on the top of the transformer, first press the toggle lever 304, the end of the toggle lever 304 will push the slotted block 303 upward, so that the slot leaves the turntable 306, and the turntable 306 can be released from the limit. The turntable 306 can then be rotated. Then rotate the turntable 306 to a suitable position and hook the lifting ring 305 installed on the top of the transformer. Then rotate the turntable 306 back again, so that the slotted block 303 returns to the third slot 3061 under the action of the spring 302 to complete the limit. Then pull up the chain 1 through a small hoist. If it is necessary to change the effective length of the chain 1, place the double-headed hook 208 on the ring bodies of two specific chains 1. An operator holds the hand-held rod 207 with one hand and rotates the hexagonal block 205 with a wrench in the other hand. The threaded shaft 203 can then rotate and retract in the threaded sleeve 201. Since the smooth shaft 204 and the flat sleeve 202 are simply sleeved, there will be no relative displacement. At the same time, there will be a displacement between the threaded shaft 203 and the threaded barrel. So generally, the threaded shaft 203 will displace relative to the smooth shaft 204. Specifically, it is manifested that the double-headed hook 208 installed at the upper ends of the smooth shaft 204 and the threaded shaft 203 approaches or moves away, and the chain links of two specific chains 1 can be tightened to achieve the purpose of changing the effective length of the chain 1.

[0031] Refer to Figures 1 - 4Based on the same concept as the above-mentioned embodiment 1, this embodiment further proposes that a quick-release lifting mechanism 3 is provided at the bottom of the hanging plate 101, and the quick-release lifting mechanism 3 includes a special-shaped plate 301, and the special-shaped plate 301 is fixedly connected to the lower surface of the hanging plate 101. The side surface of the special-shaped plate 301 is provided with a first groove 3011 and a second groove 3012. By setting up the quick-release lifting mechanism 3, it is convenient to quickly disassemble the hoisted transformer after it reaches the designated location and the transformer contacts the load-bearing surface as a whole by just slightly pressing. After arriving at the designated location, the transformer can be quickly released by a simple pressing operation, avoiding the cumbersome steps and potential risks of the traditional disassembly method.

[0032] Reference Figures 1 - 4 Based on the same concept as the above-mentioned embodiment 1, this embodiment further proposes that the first slot 3011 is vertically opened on the side surface of the special-shaped plate 301, and the second slot 3012 is obliquely opened on the side surface of the special-shaped plate 301.

[0033] Reference Figures 1 - 4 Based on the same concept as the above-mentioned embodiment 1, this embodiment further proposes that a spring 302 is provided in the first slot 3011, a slot block 303 is provided at the bottom of the spring 302, and a toggle slot 3031 is provided on the slot block 303 to accommodate its movement.

[0034] Reference Figures 1 - 4 Based on the same concept as the above-mentioned embodiment 1, this embodiment further proposes that a toggle rod 304 is provided in the second slot 3012 through a movable axis, and the end of the toggle rod 304 is located in the toggle slot 3031 to accommodate its movement.

[0035] Reference Figures 1 - 4 Based on the same concept as the above-mentioned embodiment 1, this embodiment further proposes that the bottom of the special-shaped plate 301 is fixedly connected with a lifting ring 305, the inner ring of the lifting ring 305 is clamped with a turntable 306 through an annular slide rail, and the side of the turntable 306 is provided with a fourth slot 3062.

[0036] Reference Figures 1 - 4 Based on the same concept as the above-mentioned embodiment 1, this embodiment further proposes that a third slot 3061 is opened on the upper part of the front surface of the turntable 306 and is located directly below the first slot 3011.

[0037] Reference Figures 1 - 4 Based on the same concept as the above-mentioned embodiment 1, this embodiment also proposes that the double-headed hook 208 and the lock buckle of the chain 1 are hooked together, so that the two can be disassembled later.

[0038] Specifically, the working process or working principle of the lifting device for transformer installation is as follows: first press the toggle rod 304, and the end of the toggle rod 304 pushes the slotted block 303 upward, so that the slot leaves the turntable 306, and the turntable 306 can be released from the limit, and the turntable 306 can be rotated, and then the turntable 306 is rotated to a suitable position, and the lifting ring 305 installed on the top of the transformer is buckled in, and then the turntable 306 is turned back again, so that the slotted block 303 returns to the third slot 3061 under the action of the spring 302, and the limit is completed, and then the chain 1 can be pulled up by a small crane. If the effective length of the chain 1 needs to be changed, the double-headed hook 2 08 is placed on the ring bodies of two specific chains 1. The operator holds the handle bar 207 with one hand and rotates the hexagonal block 205 with a wrench in the other hand, and the threaded shaft 203 can be rotated and retracted in the threaded sleeve 201. Since the smooth shaft 204 and the flat sleeve 202 are simply sleeved, no relative displacement will occur. At the same time, displacement will occur between the threaded shaft 203 and the threaded barrel, so in general, the threaded shaft 203 will be displaced relative to the smooth shaft 204. Specifically, the double-headed hook 208 installed on the upper end of the smooth shaft 204 and the threaded shaft 203 can be moved closer or farther away, so that the chain links of the two chains 1 can be tightened to each other, thereby achieving the purpose of changing the effective length of the chain 1.

[0039] It should be noted that the chain 1 is a device or equipment existing in the prior art, or a device or equipment that can be realized in the prior art. Its power supply, specific composition and principle are clear to those skilled in the art, so they are not described in detail.

Claims

1. A lifting device for transformer installation, including a chain (1), characterized in that: The bottom end of the chain (1) is fixedly connected to a hanging plate (101), and a distance adjustment mechanism (2) is provided on the chain body of the chain (1); The distance adjustment mechanism (2) comprises: A threaded sleeve (201), wherein the inner ring of the threaded sleeve (201) is threadedly connected to a threaded shaft (203); A flat sleeve (202), wherein a smooth shaft (204) is sleeved inside the flat sleeve (202) via a bearing; A hexagonal block (205), one side of which is fixedly connected to the end of the threaded shaft (203); A hand grip rod (207), wherein two ends of the hand grip rod (207) are respectively fixedly connected to the proximal ends of the cylinder bodies of the threaded sleeve (201) and the flat sleeve (202); A double-headed hook (208) is fixedly connected to the threaded shaft (203) and the end of the smooth shaft (204).

2. The lifting device for transformer installation according to claim 1, characterized in that, A quick-detachable lifting mechanism (3) is provided at the bottom of the hanging plate (101), and the quick-detachable lifting mechanism (3) comprises a special-shaped plate (301). The special-shaped plate (301) is fixedly connected to the lower surface of the hanging plate (101), and a first slot (3011) and a second slot (3012) are provided on the side surface of the plate body of the special-shaped plate (301).

3. The lifting device for transformer installation according to claim 2, characterized in that, The first slot (3011) is vertically opened on the side surface of the special-shaped plate (301), and the second slot (3012) is obliquely opened on the side surface of the special-shaped plate (301).

4. A lifting device for transformer installation according to claim 2, characterized in that, A spring (302) is arranged in the first slot (3011), a slot block (303) is arranged at the bottom of the spring (302), and a toggle slot (3031) is arranged on the slot block (303).

5. A lifting device for transformer installation according to claim 4, characterized in that, A toggle rod (304) is provided in the second slot (3012) via a movable axis, and an end of the toggle rod (304) is located in the toggle slot (3031).

6. A lifting device for transformer installation according to claim 5, characterized in that, A lifting ring (305) is fixedly connected to the bottom of the special-shaped plate (301), and a rotating disk (306) is clamped to the inner ring of the lifting ring (305) via an annular slide rail, and a fourth slot (3062) is provided on the side of the rotating disk (306).

7. The lifting device for transformer installation according to claim 6, characterized in that, A third slot (3061) is provided on the upper portion of the front surface of the rotating disk (306) and is located directly below the first slot (3011).

8. A lifting device for transformer installation according to claim 3, characterized in that, The double-headed hook (208) is hooked with the lock buckle of the chain (1).