Novel sealing device for improving packaging efficiency of mutual inductor

Abstract

The utility model discloses a novel sealing device for improving the packaging efficiency of a mutual inductor, and relates to the technical field of mutual inductors. The novel seal device capable of improving the mutual inductor packaging efficiency comprises a mutual inductor cover and a seal, a groove is formed in the outer wall of the top of the mutual inductor cover, a screw is in threaded connection with the inner wall of the groove, a limiting groove is formed in the position, close to the top end, of the outer wall of the screw, and a pre-installation structure is arranged on the outer wall of the screw; the pre-installation structure comprises an L-shaped plate, a circular opening and a first penetrating hole are formed in the outer wall of the L-shaped plate, and the L-shaped plate is arranged on the outer side of the screw in a penetrating mode through the circular opening. The copper wire can penetrate through a plurality of holes (the first penetrating hole, the second penetrating hole, the rectangular hole and the circular hole) in advance, so that convenient pre-installation of the seal is realized; by means of the design, the tedious operation that in a narrow electrical cabinet, a screw is firstly screwed, and then a seal is difficult to penetrate in the narrow electrical cabinet in the traditional process is optimized, and inconvenience and trouble caused by space limitation are effectively avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of mutual inductors, and in particular to a novel sealing device for improving the packaging efficiency of mutual inductors. Background Art

[0002] As an indispensable measurement and protection device in the power system, the unique design and functional characteristics of the instrument transformer make them play a vital role in the accurate measurement and efficient management of electrical parameters such as current and voltage. Whether it is a current transformer or a voltage transformer, they are important cornerstones for the intelligent and automated development of the power system, and they contribute indispensable forces to the construction of a safe, reliable and efficient modern power network.

[0003] When using existing seals for transformer covers, users often need to first tighten the screws on the cover, and then try to cleverly pass the seal through the corresponding holes on the screws and the cover to achieve a stable connection between the two. This process is particularly inconvenient in the limited space in the electrical cabinet, which not only increases the difficulty of operation, but also may affect the installation efficiency and the final tightening effect. Utility Model Content

[0004] The purpose of the utility model is to provide a new type of sealing device for improving the packaging efficiency of a mutual inductor, thereby solving the technical problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a new sealing device for improving the packaging efficiency of a transformer, comprising a transformer cover and a seal, wherein a groove is provided on the top outer wall of the transformer cover, a screw is threadedly connected to the inner wall of the groove, a limiting groove is provided on the outer wall of the screw near the top, and a pre-installation structure is provided on the outer wall of the screw;

[0006] The pre-installation structure comprises an L-shaped plate, the outer wall of the L-shaped plate is provided with a circular opening and an insertion hole, the L-shaped plate is inserted and arranged on the outer side of the screw through the circular opening, the inner wall of the L-shaped plate is provided with a movable groove, the inner wall of the movable groove is slidably connected to a limit clamp block, one side outer wall of the limit clamp block is fixedly connected to a spring, and the other end of the spring is fixedly connected to the inner wall of the movable groove;

[0007] A rectangular hole is formed on the top outer wall of the transformer cover, and a second insertion hole is formed through one side of the rectangular hole, wherein the second insertion hole connects the groove and the rectangular hole;

[0008] A circular hole is formed through the inner wall of the seal, and a copper wire is fixedly connected to the outer wall of the seal. One end of the copper wire passes through insertion hole 1, insertion hole 2, the rectangular hole, and the circular hole in sequence to connect and fix the seal to the transformer cover.

[0009] Preferably, the bottom end of the screw is chamfered, and the radius of the limiting groove is smaller than the radius of the screw below it.

[0010] Preferably, the screw consists of a screw rod and a screw head, and the bottom outer wall of the screw head abuts against the top outer wall of the L-shaped plate.

[0011] Preferably, both outer walls of the limiting clamp block are fixedly connected with movable blocks, and both inner walls of the L-shaped plate and the movable groove are provided with movable grooves, and the outer wall of the movable block is slidably connected with the inner wall of the movable groove.

[0012] Preferably, the limiting clamp block is rotatably connected to the outer wall of the limiting groove.

[0013] Compared with the related art, the novel sealing device provided by the utility model for improving the packaging efficiency of the mutual inductor has the following beneficial effects:

[0014] 1. The utility model provides a new sealing device for improving the packaging efficiency of the mutual inductor. The copper wire can be inserted through a plurality of holes (insertion hole one, insertion hole two, rectangular hole, circular hole) in advance to realize the convenient pre-installation of the seal. This design optimizes the tedious operation of tightening the screws first and then inserting the seal with difficulty in the traditional process in a narrow electrical cabinet, and effectively avoids the inconvenience and trouble caused by space limitations.

[0015] 2. The utility model provides a new sealing device for improving the packaging efficiency of the transformer. Due to the stable installation of the seal, the transformer cover can be effectively prevented from being opened at will by unauthorized personnel, thereby improving the safety and reliability of the power equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 For the utility model Figure 1 The enlarged structural diagram at A in the middle;

[0018] Figure 3 This is a schematic diagram of the screw structure of the utility model;

[0019] Figure 4 This is a schematic diagram of the pre-installed structure of the utility model;

[0020] Figure 5 It is a schematic diagram of the cutaway structure of the pre-installed structure of the utility model;

[0021] Figure 6 For the utility model Figure 5 Enlarged structural diagram at B in the middle.

[0022] In the figure: 1. Transformer cover; 2. Groove; 3. Screw; 4. Limiting groove; 5. Pre-installed structure; 501. L-shaped plate; 502. Round mouth; 503. Insertion hole one; 504. Movable groove; 505. Limiting clamp; 506. Moving block; 507. Moving groove; 508. Spring; 6. Rectangular hole; 7. Insertion hole two; 8. Seal; 9. Copper wire. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0024] Example:

[0025] See also Figure 1-Figure 6 The utility model provides a technical solution: a new sealing device for improving the packaging efficiency of a transformer, comprising a transformer cover 1 and a sealing label 8, a groove 2 is provided on the top outer wall of the transformer cover 1, a screw 3 is threadedly connected to the inner wall of the groove 2, a limiting groove 4 is provided on the outer wall of the screw 3 near the top, and a pre-installation structure 5 is provided on the outer wall of the screw 3;

[0026] The pre-installation structure 5 includes an L-shaped plate 501, the outer wall of the L-shaped plate 501 is provided with a circular opening 502 and an insertion hole 503, the L-shaped plate 501 is inserted and arranged on the outer side of the screw 3 through the circular opening 502, the inner wall of the L-shaped plate 501 is provided with a movable groove 504 and a limit clamp 505, one side of the outer wall of the limit clamp 505 is fixedly connected with a spring 508, and the other end of the spring 508 is fixedly connected to the inner wall of the movable groove 504;

[0027] A rectangular hole 6 is formed on the top outer wall of the transformer cover 1, and a second insertion hole 7 is formed through one side of the rectangular hole 6, and the second insertion hole 7 connects the groove 2 and the rectangular hole 6;

[0028] A circular hole is formed through the inner wall of the seal 8, and a copper wire 9 is fixedly connected to the outer wall of the seal 8. One end of the copper wire 9 passes through the insertion hole 1 503, the insertion hole 2 7, the rectangular hole 6, and the circular hole in sequence to connect and fix the seal 8 to the transformer cover 1.

[0029] In this embodiment, when installing the transformer cover 1, the L-shaped plate 501 is sleeved on the outside of the screw 3. When the L-shaped plate 501 gradually moves upward, the radius of the screw 3 becomes larger, and the limiting clamp 505 in the L-shaped plate 501 is squeezed outward. When the L-shaped plate 501 moves to the limiting groove 4, the radius of the screw 3 becomes smaller, and the squeezed limiting clamp 505 moves toward the direction close to the screw 3 under the action of the spring 508. The limiting clamp 505 contacts the limiting groove 4, the L-shaped plate 501 is rotatably connected to the screw 3, and the L-shaped plate 501 is limited at the limiting groove 4, which is relatively stable.

[0030] One end of the copper wire 9 is passed through the insertion hole 1 503, the insertion hole 2 7, the rectangular hole 6, and the circular hole in sequence, and the seal 8 is connected and fixed to the transformer cover 1, thereby realizing the pre-installation of the seal 8.

[0031] Then, the screw 3 is rotated to install the transformer cover 1 on the transformer. Since the L-shaped plate 501 is rotatably connected to the screw 3, rotating the screw 3 will not affect the seal 8.

[0032] When the transformer cover 1 needs to be opened, the copper wire 9 is cut. The screw 3 and the pre-installed structure 5 are rotationally connected together. The screw 3 is rotated to facilitate the opening of the transformer cover 1, and the pre-installed structure 5 rotationally connected with the screw 3 can be removed together.

[0033] The bottom end of the screw 3 is chamfered, and the radius of the limiting groove 4 is smaller than the radius of the screw 3 at the lower side thereof.

[0034] In this embodiment, the bottom end of the screw 3 is chamfered with a small radius to facilitate the upward movement of the L-shaped plate 501.

[0035] The screw 3 is composed of a screw rod and a screw head, and the bottom outer wall of the screw head abuts against the top outer wall of the L-shaped plate 501 .

[0036] In this embodiment, after the screw 3 is tightened, the bottom outer wall of the screw head abuts against the top outer wall of the L-shaped plate 501 to fix the L-shaped plate 501 .

[0037] Among them, the outer walls on both sides of the limiting clamp block 505 are fixedly connected with the moving block 506, and the inner walls on both sides of the L-shaped plate 501 and located at the movable groove 504 are provided with moving grooves 507, and the outer wall of the moving block 506 is slidably connected with the inner wall of the moving groove 507.

[0038] In this embodiment, the movable groove 507 and the movable block 506 are arranged to limit the movement of the limiting clamp block 505, so that the limiting clamp block 505 moves in the horizontal direction.

[0039] The limiting clamp block 505 is rotatably connected to the outer wall of the limiting groove 4 .

[0040] In this embodiment, the limiting clamp block 505 is in contact with the outer wall of the limiting groove 4 but is not fixed thereto. When the screw 3 rotates, the limiting clamp block 505 does not rotate therewith.

[0041] Working principle: When installing the transformer cover 1, the L-shaped plate 501 is sleeved on the outside of the screw 3. The bottom end of the screw 3 is chamfered with a small radius to facilitate the upward movement of the L-shaped plate 501. When the L-shaped plate 501 gradually moves upward, the radius of the screw 3 becomes larger, and the limiting clamp 505 in the L-shaped plate 501 is squeezed outward. When the L-shaped plate 501 moves to the limiting groove 4, the radius of the screw 3 becomes smaller, and the squeezed limiting clamp 505 moves toward the direction close to the screw 3 under the action of the spring 508. The limiting clamp 505 contacts the limiting groove 4, the L-shaped plate 501 is rotatably connected to the screw 3, and the L-shaped plate 501 is limited at the limiting groove 4, which is relatively stable.

[0042] One end of the copper wire 9 is passed through the insertion hole 1 503, the insertion hole 2 7, the rectangular hole 6, and the circular hole in sequence, and the seal 8 is connected and fixed to the transformer cover 1, thereby realizing the pre-installation of the seal 8.

[0043] Then, the screw 3 is rotated to install the transformer cover 1 on the transformer. Since the L-shaped plate 501 is rotatably connected to the screw 3, rotating the screw 3 will not affect the seal 8.

[0044] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A new sealing device for improving the packaging efficiency of a transformer, comprising a transformer cover (1) and a sealing label (8), characterized in that: The top outer wall of the transformer cover (1) is provided with a groove (2), the inner wall of the groove (2) is threadedly connected with a screw (3), the outer wall of the screw (3) is provided with a limiting groove (4) near the top, and the outer wall of the screw (3) is provided with a pre-installation structure (5); The pre-installation structure (5) comprises an L-shaped plate (501), the outer wall of the L-shaped plate (501) is provided with a circular opening (502) and an insertion hole (503), the L-shaped plate (501) is inserted through the circular opening (502) and arranged on the outer side of the screw (3), the inner wall of the L-shaped plate (501) is provided with a movable groove (504), the inner wall of the movable groove (504) is slidably connected to a limit clamp (505), one side outer wall of the limit clamp (505) is fixedly connected to a spring (508), and the other end of the spring (508) is fixedly connected to the inner wall of the movable groove (504); A rectangular hole (6) is provided on the top outer wall of the transformer cover (1), and a second insertion hole (7) is provided through one side of the rectangular hole (6), wherein the second insertion hole (7) communicates with the groove (2) and the rectangular hole (6); The inner wall of the seal (8) is penetrated by a circular hole, and the outer wall of the seal (8) is fixedly connected with a copper wire (9), and one end of the copper wire (9) passes through the insertion hole 1 (503), the insertion hole 2 (7), the rectangular hole (6), and the circular hole in sequence to connect and fix the seal (8) to the transformer cover (1).

2. According to claim 1, a new sealing device for improving the packaging efficiency of a mutual inductor is characterized in that: The bottom end of the screw (3) is chamfered, and the radius of the limiting groove (4) is smaller than the radius of the screw (3) below it.

3. According to claim 1, a new sealing device for improving the packaging efficiency of a mutual inductor is characterized in that: The screw (3) is composed of a screw rod and a screw head, and the bottom outer wall of the screw head abuts against the top outer wall of the L-shaped plate (501).

4. According to claim 1, a new sealing device for improving the packaging efficiency of a mutual inductor is characterized in that: The outer walls on both sides of the limiting clamp block (505) are fixedly connected to a moving block (506), and the inner walls on both sides of the movable groove (504) inside the L-shaped plate (501) are provided with a moving groove (507), and the outer wall of the moving block (506) is slidably connected to the inner wall of the moving groove (507).

5. According to claim 1, a new sealing device for improving the packaging efficiency of a mutual inductor is characterized in that: The limiting clamp block (505) is rotatably connected to the outer wall of the limiting groove (4).

Images