Crank of high-voltage switch cabinet

Abstract

The utility model discloses a crank of a high-voltage switch cabinet. Comprising a rotating handle and a connecting handle, the rotating handle is fixedly connected with the connecting handle, the connecting handle is fixedly connected with a six-edge rotating head, a first cavity and a second cavity are formed in the six-edge rotating head, a through hole is formed in the six-edge rotating head, the through hole is communicated with the first cavity, the first cavity is communicated with the second cavity, and the first cavity is communicated with the second cavity. The second cavity is connected with a rectangular rotating head through a clamping mechanism, the hexagonal rotating head is provided with a limiting mechanism, and through conversion of the hexagonal rotating head and the rectangular rotating head, safety and effectiveness of the crank of the high-voltage switch cabinet under various operation conditions are guaranteed. According to the crank of the high-voltage switch cabinet, through the well-designed structure and the synergistic effect between the parts, the efficient and safe operation process is achieved, and reliable tool support is provided for maintenance and management of an electric power system.

Description

Technical Field

[0001] The utility model relates to the technical field of high-voltage power transmission and distribution equipment, in particular to a crank handle for a high-voltage switch cabinet. Background Art

[0002] A high-voltage switchgear crank is a hand tool used to operate the internal mechanical mechanisms of a high-voltage switchgear. It is typically made of insulating material to ensure operator safety. One end of the crank features an interface that mates with the gears or connecting rods inside the switchgear, while the other end provides a grip for easy gripping. Rotating the crank opens and closes devices like circuit breakers and disconnectors within the switchgear.

[0003] However, this type of high-voltage switchgear crank presents several practical challenges. First, due to the special requirements of high-voltage environments, the crank's manufacturing materials and craftsmanship must meet very high standards, resulting in relatively high costs. Second, during operation, if the crank does not align accurately with the switchgear's internal mechanisms, it can cause operational difficulties, damage internal structures, and even lead to safety accidents.

[0004] Therefore, we propose a high-voltage switch cabinet crank to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to solve the problems existing in the prior art and to propose a high-voltage switch cabinet crank.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A crank handle for a high-voltage switch cabinet includes a rotating handle and a connecting handle, wherein the rotating handle is fixedly connected to the connecting handle, and the connecting handle is fixedly connected to a hexagonal rotating head, wherein a first cavity and a second cavity are provided in the hexagonal rotating head, and a through hole is provided in the hexagonal rotating head, wherein the through hole is connected to the first cavity, and the first cavity is connected to the second cavity, and the second cavity is connected to a rectangular rotating head via a locking mechanism, and a limiting mechanism is provided on the hexagonal rotating head.

[0008] Preferably, the locking mechanism includes a locking block, the outer side wall of the locking block is fixedly connected to two symmetrical limit blocks, the outer side wall of the rectangular turning head is fixedly connected to a locking block, and the inner side wall of the locking block is provided with a first notch adapted to the locking block.

[0009] Preferably, the limiting mechanism includes a threaded hole provided on the outer side wall of the hexagonal turn head, and a limiting bolt is threadedly connected to the threaded hole.

[0010] Preferably, one end of the rectangular turning head passes through the second cavity and extends into the first cavity, the end of the rectangular turning head located in the first cavity is adapted to the through hole, and the inner side wall of the hexagonal turning head is provided with two second slots connected to the second cavity, and the two limit blocks are adapted to the second slots.

[0011] Preferably, a sliding groove is provided in the hexagonal rotating head, the sliding groove and the through hole are communicated with each other, and the clamping block is adapted to the sliding groove.

[0012] Preferably, a through hole is provided on the clamping block, and a first thread is provided on an inner side wall of the through hole, and the first thread is connected to a threaded rod threadedly connected thereto.

[0013] Preferably, an identification hole is provided on the top of the hexagonal rotor.

[0014] Compared with the prior art, the present invention has the following advantages:

[0015] By converting the hexagonal rotor into a rectangular rotor, the safety and effectiveness of the high-voltage switchgear crank are ensured under various operating conditions. This high-voltage switchgear crank achieves an efficient and safe operating process through the synergy between its carefully designed structure and components, providing reliable tool support for the maintenance and management of the power system. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural diagram of a high-voltage switch cabinet crank proposed by the utility model;

[0017] Figure 2 This is a cross-sectional view of a high-voltage switchgear crank proposed in the present utility model;

[0018] Figure 3 This is a cross-sectional view of a high-voltage switchgear crank proposed in the present utility model;

[0019] Figure 4 This is a cross-sectional view of a high-voltage switchgear crank proposed in the present utility model;

[0020] Figure 5 This is a schematic diagram of the card block structure of a high-voltage switchgear crank handle proposed by the utility model;

[0021] Figure 6 This is a cross-sectional view of a high-voltage switchgear crank handle proposed by the present invention.

[0022] In the figure: 1. Rotating handle; 2. Connecting handle; 3. Hexagonal rotating head; 4. First cavity; 5. Second cavity; 6. Locking block; 7. Limiting block; 8. Rectangular rotating head; 9. Clamping block; 10. Limiting bolt; 11. Through hole; 12. Sliding groove; 13. Through hole. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0024] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0025] Reference Figures 1-6 , a high-voltage switch cabinet crank handle, including a rotating handle 1 and a connecting handle 2. The rotating handle 1 is designed to be easy for the operator to hold and is usually made of non-slip material to ensure good grip and comfort during operation. The size and shape of the rotating handle 1 take into account ergonomics, so that the operator can easily rotate it even when wearing gloves. The rotating handle 1 is fixedly connected to the connecting handle 2, and the connecting handle 2 is fixedly connected to a hexagonal rotating head 3. A first cavity 4 and a second cavity 5 are provided in the hexagonal rotating head 3. A through hole 11 is provided in the hexagonal rotating head 3, and the through hole 11 is connected to the first cavity 4. The first cavity 4 is connected to the second cavity 5, and the second cavity 5 is connected to a rectangular rotating head 8 through a locking mechanism. The surface of the rectangular rotating head 8 is coated with an anti-rust coating to prevent rust in a humid environment, keeping the appearance of the crank neat and the function normal, and suitable for various working environments. A limiting mechanism is provided on the hexagonal rotating head 3.

[0026] The locking mechanism includes a locking block 6, the outer wall of which is fixedly connected to two symmetrical limit blocks 7, the outer wall of the rectangular rotating head 8 is fixedly connected to a locking block 9, and the inner wall of the locking block 6 is provided with a first notch adapted to the locking block 9.

[0027] The limiting mechanism includes a threaded hole arranged on the outer wall of the hexagonal turning head 3, and a limiting bolt 10 is threadedly connected to the threaded hole. Its position in the threaded hole can be adjusted to limit the range of motion of the rectangular turning head 8 and prevent damage or misoperation caused by excessive rotation. The head of the limiting bolt 10 is designed with anti-slip texture, which makes it difficult for the operator to slip when tightening or loosening the limiting bolt 10, thereby improving the safety and efficiency of the operation.

[0028] One end of the rectangular turning head 8 passes through the second cavity 5 and extends into the first cavity 4. The end of the rectangular turning head 8 located in the first cavity 4 is adapted to the through hole 11. The inner wall of the hexagonal turning head 3 is provided with two second notches connected to the second cavity 5, and the two limit blocks 7 are adapted to the second notches.

[0029] A sliding groove 12 is provided in the hexagonal turning head 3, and the sliding groove 12 is communicated with the through hole 11, and the clamping block 9 is adapted to the sliding groove 12. This design allows the rectangular turning head 8 to move freely within a certain range, and at the same time can be fixed by the clamping mechanism when needed, ensuring the flexibility and accuracy of the operation.

[0030] A through hole 13 is provided on the block 9, and a first thread is provided on the inner wall of the through hole 13. The first thread is connected to a threaded rod threadedly connected thereto, so as to facilitate the limiting effect when the rectangular turn head 8 is located in the through hole 11 of the hexagonal turn head 3, so that the rectangular turn head 8 will not slide.

[0031] An identification hole is provided on the top of the hexagonal rotor 3 to facilitate the operator to quickly identify the positive and negative directions of the crank to distinguish different operating states or functions, which helps to improve operating efficiency and reduce the risk of incorrect operation.

[0032] The specific working principle of this utility model is as follows:

[0033] In actual operation, when the device needs to use the rectangular rotating head 8, it will be rotated out of the limit position on the card block 9. At this time, the card block 9 slides in the sliding groove 12 adapted thereto. At this time, the rectangular rotating head 8 is in a vertical direction. The rectangular rotating head 8 is pulled so that the card block 9 slides into the first cavity 4 and enters the first notch adapted thereto. At this time, the rectangular rotating head 8 is rotated, and the rotation of the rectangular rotating head 8 drives the locking block 6 to rotate. At this time, the rectangular rotating head 8 is rotated 90 degrees clockwise, so that the locking block 6 rotates with it. Move the clamping block 9 to rotate it 90 degrees, and the two limit blocks 7 fixed on the outer side wall of the locking block 6 change from horizontal symmetry to vertical symmetry, so that the limit block 7 is located in the second notch, so that the position of the locking block 6 is fixed. Since the clamping block 9 is located in the first notch, the position of the rectangular turning head 8 is fixed and cannot be rotated. At this time, the rectangular turning head 8 is completely outside, and the limit bolt 10 is turned into the threaded hole. Since the position of the limit bolt 10 is directly behind the clamping block 9, the forward and backward movement of the rectangular turning head 8 is restricted.

[0034] Insert the rectangular turning head 8 into the operating port that matches the rectangular turning head 8, and the operator holds the rotating handle 1. Through the rotational force applied by the human body, the rotating handle 1 drives the connecting handle 2 fixedly connected to it to rotate together. The other end of the connecting handle 2 is fixedly connected to the hexagonal turning head 3. Therefore, the hexagonal turning head 3 will also rotate accordingly, thereby driving the rectangular turning head 8 to rotate for rotating the handle.

[0035] When the hexagonal swivel 3 is needed, it is only necessary to rotate the limit bolt 10 so that the rectangular swivel 8 can slide back and forth, and the locking block 6 enters the first cavity 4. At this time, the rectangular swivel 8 rotates 90 degrees counterclockwise, and the locking block 6 also rotates. Due to the influence of the limit block 7, the locking block 6 can only rotate within the locking block 6 and will not slide out. The limit block 7 slides in the sliding groove 12, and the locking block 6 slides out from it, turning the threaded rod into the first thread, so that the rectangular swivel 8 is restricted. At this time, the hexagonal swivel 3 can enter the rotating hole adapted therewith and rotate.

[0036] At the same time, an identification hole is provided on the hexagonal rotating head 3 to facilitate the operator to identify the rotation direction.

[0037] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A high-voltage switch cabinet crank, comprising a rotating handle (1) and a connecting handle (2), characterized in that: The rotating handle (1) is fixedly connected to the connecting handle (2), and the connecting handle (2) is fixedly connected to a hexagonal rotating head (3). A first cavity (4) and a second cavity (5) are provided in the hexagonal rotating head (3). A through hole (11) is provided in the hexagonal rotating head (3), and the through hole (11) is communicated with the first cavity (4). The first cavity (4) is communicated with the second cavity (5). The second cavity (5) is connected to a rectangular rotating head (8) via a locking mechanism. A limiting mechanism is provided on the hexagonal rotating head (3).

2. A high-voltage switch cabinet crank according to claim 1, characterized in that: The locking mechanism comprises a locking block (6), the outer side wall of the locking block (6) is fixedly connected to two symmetrical limiting blocks (7), the outer side wall of the rectangular rotating head (8) is fixedly connected to a locking block (9), and the inner side wall of the locking block (6) is provided with a first notch adapted to the locking block (9).

3. The high-voltage switch cabinet crank according to claim 1, characterized in that: The limiting mechanism comprises a threaded hole provided on the outer side wall of the hexagonal turning head (3), wherein the threaded hole is threadedly connected to a limiting bolt (10).

4. A high-voltage switch cabinet crank according to claim 2, characterized in that: One end of the rectangular turning head (8) passes through the second cavity (5) and extends into the first cavity (4); one end of the rectangular turning head (8) located in the first cavity (4) is adapted to the through hole (11); the inner side wall of the hexagonal turning head (3) is provided with two second notches communicating with the second cavity (5); the two limit blocks (7) are adapted to the second notches.

5. The high-voltage switch cabinet crank according to claim 2, characterized in that: A sliding groove (12) is provided in the hexagonal rotating head (3), the sliding groove (12) and the through hole (11) are communicated with each other, and the clamping block (9) is adapted to the sliding groove (12).

6. The high-voltage switch cabinet crank according to claim 2, characterized in that: A through hole (13) is provided on the clamping block (9), and a first thread is provided on the inner side wall of the through hole (13), and the first thread is connected to a threaded rod threadedly connected thereto.

7. The high-voltage switch cabinet crank according to claim 1, characterized in that: An identification hole is provided on the top of the hexagonal rotor (3).

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