Lifting tool of current transformer

Abstract

The utility model relates to the technical field of hoisting tools, in particular to a current transformer hoisting tool which comprises a fixing frame, a supporting rod, a clamping block, a mounting frame, a mounting block, a cable and a fixing ring. The number of the fixing frames is two, the two fixing frames are connected with the mounting frame in a sliding mode, and an adjusting mechanism used for adjusting the distance between the two fixing frames is arranged on the mounting frame. The multiple clamping blocks are connected with the two fixing frames, and grooves are formed in the surfaces of the clamping blocks; the multiple supporting rods are connected with the two fixing frames, and the supporting rods at the lower ends of the two fixing frames are distributed in a staggered mode. The multiple mounting blocks are connected to the upper end of the mounting frame, and the multiple cables are connected with the fixing ring and the corresponding mounting blocks. The tool covers the outer side of the current transformer, the adjusting mechanism drives the two fixing frames to get close to each other and clamp the two sides of the current transformer, the V-shaped grooves in the clamping blocks on the fixing frames can clamp the four edges of the current transformer, and the fixing effect is better.

Description

Technical Field

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

[0002] The current transformer consists of a closed iron core and windings. The function of the current transformer is to convert a larger primary current into a smaller secondary current through a certain transformation ratio for protection, measurement and other purposes.

[0003] The Chinese patent with authorization announcement number CN221274990U discloses a lifting fixture for a current transformer, which belongs to the technical field of current transformers and includes a supporting clamp, a screw and a lifting lug; the supporting clamps are relatively distributed on both sides of the current transformer to support the two sides of the bottom of the current transformer and clamp the current transformer between the two supporting clamps, and the current transformer slides in and out between the supporting clamps; the screw is placed between two supporting clamps respectively distributed on both sides of the current transformer to block the current transformer from entering and exiting the supporting clamps, the screw is threadedly connected to the supporting clamps, and after removing one side of the screw, the passage for the current transformer to enter and exit between the two supporting clamps is opened; the lifting lug is detachably installed between the upper ends of the relatively distributed supporting clamps. After the supporting clamps support and clamp the current transformer, the lifting lug is installed to perform the lifting operation, saving lifting time and improving work efficiency. In addition, the lifting fixture of this application occupies a small space, changes the existing lifting method, and reduces installation hazards.

[0004] However, the above technical solution has the following defects: the two supporting clamps in the lifting of the above-mentioned current transformer can adjust the two ends of the clamping device, but the other two ends of the device are not restricted. When the tooling is in use, the hanging ears are hung on the lifting device, which is prone to shaking during the lifting process, causing the center of gravity to shift, and both the tooling and the equipment are tilted, and the safety performance of the lifting tooling is poor. Utility Model Content

[0005] The utility model aims to solve the problems existing in the background technology and propose a lifting tool for a current transformer.

[0006] The technical solution of the utility model: a lifting tool for a current transformer, comprising a fixing frame, a support rod, a clamping block, a mounting frame, a mounting block, a cable and a fixing ring;

[0007] There are two fixing frames, which are slidably connected to the mounting frame. The two fixing frames are symmetrically distributed on the mounting frame, and the mounting frame is provided with an adjustment mechanism for adjusting the distance between the two fixing frames;

[0008] There are multiple clamping blocks, which connect the surfaces of two fixing frames close to each other. Multiple clamping blocks are evenly distributed side by side on one fixing frame, and grooves are provided on the surfaces of the clamping blocks.

[0009] A plurality of support rods are provided and connected to the lower ends of the two fixing frames, the plurality of support rods are evenly distributed side by side at the lower ends of the fixing frames, and the support rods at the lower ends of the two fixing frames are staggered;

[0010] There are multiple mounting blocks connected to the upper end of the mounting frame, and there are multiple cables. One end of each cable is connected to the fixing ring. The cables correspond to the mounting blocks one by one, and the other ends of the cables are connected to the corresponding mounting blocks.

[0011] Preferably, the grooves on the clamping blocks are all V-shaped grooves, and rubber pads are provided in the grooves.

[0012] Preferably, the adjustment mechanism comprises a double-threaded rod, a guide rod and a drive assembly;

[0013] The guide rod is connected to the mounting frame, the double-threaded rod is rotatably connected to the mounting frame, the double-threaded rod and the guide rod are distributed side by side, the drive assembly is connected to the mounting frame, and the drive assembly is transmission-connected to the double-threaded rod;

[0014] Both fixing frames are provided with mounting plates, both mounting plates are slidably connected to the guide rod; both mounting plates are provided with nuts, which are threadedly connected to the double-threaded rod, and the two mounting plates are symmetrically distributed on the double-threaded rod.

[0015] Preferably, it also includes a bolt, a limit block and a connecting rod;

[0016] There are multiple connecting rods, and the fixing frame is provided with multiple mounting holes, which are symmetrically distributed on the fixing frame;

[0017] The connecting rod is slidably connected to the corresponding mounting holes on the two fixing frames. A plurality of limit blocks are provided and connected to one end of the connecting rod. A plurality of bolts are provided and the bolts are threadedly connected to the other end of the connecting rod.

[0018] Preferably, the outer diameter of the limit block and the outer diameter of the bolt end are both greater than the outer diameter of the connecting rod.

[0019] Preferably, there are four mounting blocks, which are evenly distributed on the upper end of the mounting frame, and the number of cables corresponds to the number of mounting blocks.

[0020] Preferably, the ends of the plurality of support rods away from the fixing frame are all provided with an inclined surface.

[0021] Compared with the prior art, the above technical solution of the present invention has the following beneficial technical effects:

[0022] 1. In the utility model, the tooling cover is placed on the outside of the current transformer, and the adjustment mechanism drives the two fixing frames to approach each other and clamp them on both sides of the current transformer. The V-shaped grooves in the clamping blocks on the fixing frames can be clamped on the four sides of the current transformer, and the fixing effect is better.

[0023] 2. In the present invention, the support rods below the fixing frame are staggered and inserted into the lower end of the current transformer to support the equipment, making it easier to lift the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a three-dimensional diagram of the lifting fixture of a current transformer proposed by the utility model in use.

[0025] Figure 2 The present invention is a structural schematic diagram of a lifting fixture for a current transformer.

[0026] Figure 3 This is a structural schematic diagram of a fixing frame in an embodiment of the present invention.

[0027] Figure numerals: 1. fixing frame; 2. support rod; 3. current transformer; 4. clamping block; 5. mounting frame; 6. mounting block; 7. cable; 8. double-threaded rod; 9. mounting plate; 10. bolt; 11. limit block; 12. guide rod; 13. drive assembly; 14. rubber pad; 15. fixing ring; 16. connecting rod; 17. groove. DETAILED DESCRIPTION

[0028] Example 1

[0029] like Figure 1-Figure 3 As shown, the lifting fixture of a current transformer proposed in the present invention includes a fixing frame 1, a support rod 2, a clamping block 4, a mounting frame 5, a mounting block 6, a cable 7 and a fixing ring 15;

[0030] There are two fixing frames 1, which are slidably connected to the mounting frame 5. The two fixing frames 1 are symmetrically distributed on the mounting frame 5. The mounting frame 5 is provided with an adjustment mechanism for adjusting the distance between the two fixing frames 1;

[0031] There are multiple clamping blocks 4, which connect the surfaces of two fixing frames 1 close to each other. Multiple clamping blocks 4 are evenly distributed side by side on one fixing frame 1, and grooves 17 are provided on the surfaces of the clamping blocks 4.

[0032] Furthermore, the grooves 17 on the clamping block 4 are all V-shaped grooves, and rubber pads 14 are provided in the grooves 17;

[0033] A plurality of support rods 2 are provided and connected to the lower ends of the two fixing frames 1. The plurality of support rods 2 are evenly distributed side by side at the lower ends of the fixing frames 1, and the support rods 2 at the lower ends of the two fixing frames 1 are staggered.

[0034] Furthermore, the ends of the plurality of support rods 2 away from the fixing frame 1 are each provided with an inclined surface;

[0035] There are multiple mounting blocks 6 connected to the upper end of the mounting frame 5, and there are multiple cables 7. One end of each of the cables 7 is connected to the fixing ring 15. The cables 7 correspond to the mounting blocks 6 one by one, and the other ends of the cables 7 are connected to the corresponding mounting blocks 6 respectively.

[0036] Furthermore, there are four mounting blocks 6 , which are evenly distributed on the upper end of the mounting frame 5 , and the number of cables 7 corresponds to the number of mounting blocks 6 .

[0037] In the utility model, when in use, the tooling is hoisted above the current transformer 3, and the fixing frames 1 on both sides are away from each other so that the tooling can be lowered and covered on the outside of the current transformer 3. The adjustment mechanism drives the two fixing frames 1 to approach each other and clamped on both sides of the current transformer 3. The ends of the fixing frames 1 close to the current transformer 3 are each provided with a clamping block 4. The V-shaped groove 17 in the clamping block 4 can be clamped on the four sides of the current transformer 3, and the fixing effect is better; the support rods 2 below the fixing frame 1 are staggered and inserted into the lower end of the current transformer 3 to support the equipment, making it easier to lift the equipment.

[0038] Example 2

[0039] like Figure 1-Figure 2 As shown, the lifting fixture of a current transformer proposed in the present invention, compared with the first embodiment, the adjustment mechanism in this embodiment includes a double-threaded rod 8, a guide rod 12 and a drive assembly 13;

[0040] The guide rod 12 is connected to the mounting frame 5, the double-threaded rod 8 is rotatably connected to the mounting frame 5, the double-threaded rod 8 and the guide rod 12 are distributed side by side, the drive assembly 13 is connected to the mounting frame 5, and the drive assembly 13 is transmission-connected to the double-threaded rod 8;

[0041] Both fixing frames 1 are provided with mounting plates 9, and both mounting plates 9 are slidably connected to the guide rod 12; both mounting plates 9 are provided with nuts, which are threadedly connected to the double-threaded rod 8, and the two mounting plates 9 are symmetrically distributed on the double-threaded rod 8.

[0042] In this embodiment, the driving assembly 13 is started to drive the double-threaded rod 8 to rotate, and the nut on the mounting plate 9 is threadedly connected to the double-threaded rod 8. The two mounting plates 9 move along the axis of the double-threaded rod 8, driving the two fixing frames 1 to move closer to or away from each other, thereby clamping and loosening the current transformer 3.

[0043] Example 3

[0044] like Figure 1-Figure 2 As shown, the lifting fixture of a current transformer proposed by the present invention, compared with the first embodiment, this embodiment further includes a bolt 10, a limit block 11 and a connecting rod 16;

[0045] There are multiple connecting rods 16, and the fixing frame 1 is provided with multiple mounting holes, which are symmetrically distributed on the fixing frame 1;

[0046] The connecting rod 16 is slidably connected to the corresponding mounting holes on the two fixing frames 1. There are multiple limit blocks 11 connected to one end of the connecting rod 16. There are multiple bolts 10, which are threadedly connected to the other end of the connecting rod 16.

[0047] Furthermore, the outer diameter of the limit block 11 and the outer diameter of the end of the bolt 10 are both greater than the outer diameter of the connecting rod 16 .

[0048] In this embodiment, a plurality of connecting rods 16 are slidably connected to the two ends of the two fixing frames 1, which serve as a second layer of protection to prevent the device from tilting and falling due to the clamping block 4 not being clamped tightly.

[0049] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto. Various changes can be made within the knowledge scope of those skilled in the art without departing from the purpose of the present invention.

Claims

1. A lifting tool for a current transformer, characterized in that: It comprises a fixing frame (1), a support rod (2), a clamping block (4), a mounting frame (5), a mounting block (6), a cable (7) and a fixing ring (15); Two fixing frames (1) are provided, the two fixing frames (1) are slidably connected to the mounting frame (5), the two fixing frames (1) are symmetrically distributed on the mounting frame (5), and the mounting frame (5) is provided with an adjustment mechanism for adjusting the distance between the two fixing frames (1); There are multiple clamping blocks (4), which connect the surfaces of two fixing frames (1) close to each other. Multiple clamping blocks (4) are evenly distributed side by side on one fixing frame (1), and the surfaces of the clamping blocks (4) are all provided with grooves (17); A plurality of support rods (2) are provided and connected to the lower ends of the two fixing frames (1); the plurality of support rods (2) are evenly distributed side by side at the lower ends of the fixing frames (1); and the support rods (2) at the lower ends of the two fixing frames (1) are staggered. A plurality of mounting blocks (6) are provided and connected to the upper end of the mounting frame (5); a plurality of cables (7) are provided, one end of each of the plurality of cables (7) is connected to the fixing ring (15); the cables (7) correspond to the mounting blocks (6) one by one, and the other ends of the cables (7) are respectively connected to the corresponding mounting blocks (6).

2. The lifting fixture for a current transformer according to claim 1, characterized in that: The grooves (17) on the clamping block (4) are all V-shaped grooves, and rubber pads (14) are all arranged in the grooves (17).

3. The lifting fixture for a current transformer according to claim 1, characterized in that: The adjustment mechanism comprises a double-threaded rod (8), a guide rod (12) and a drive assembly (13); The guide rod (12) is connected to the mounting frame (5), the double-threaded rod (8) is rotatably connected to the mounting frame (5), the double-threaded rod (8) and the guide rod (12) are arranged side by side, the drive assembly (13) is connected to the mounting frame (5), and the drive assembly (13) is transmission-connected to the double-threaded rod (8); Both fixing frames (1) are provided with mounting plates (9), and both mounting plates (9) are slidably connected to the guide rod (12); both mounting plates (9) are provided with nuts, and the nuts are threadedly connected to the double-threaded rod (8), and the two mounting plates (9) are symmetrically distributed on the double-threaded rod (8).

4. The lifting fixture for a current transformer according to claim 1, characterized in that: It also includes a bolt (10), a limit block (11) and a connecting rod (16); There are multiple connecting rods (16), and the fixing frame (1) is provided with multiple mounting holes, and the mounting holes are symmetrically distributed on the fixing frame (1); The connecting rod (16) is slidably connected to the corresponding mounting holes on the two fixing frames (1); a plurality of limit blocks (11) are provided and connected to one end of the connecting rod (16); a plurality of bolts (10) are provided and the bolts (10) are threadedly connected to the other end of the connecting rod (16).

5. The lifting fixture for a current transformer according to claim 4, characterized in that: The outer diameter of the limit block (11) and the outer diameter of the end of the bolt (10) are both greater than the outer diameter of the connecting rod (16).

6. The lifting fixture for a current transformer according to claim 1, characterized in that: There are four mounting blocks (6), which are evenly distributed on the upper end of the mounting frame (5), and the number of cables (7) corresponds to the number of mounting blocks (6).

7. The lifting fixture for a current transformer according to claim 1, characterized in that: The ends of the plurality of support rods (2) away from the fixing frame (1) are all provided with inclined surfaces.

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