Special tool for overhauling direct-current deicing device

Abstract

The utility model relates to the technical field of overhauling tools, and discloses a special tool for overhauling a direct current deicing device, which comprises a handle and a connecting piece, a screwdriver head is arranged in the connecting piece, one side of the outer wall of the connecting piece is fixedly connected with a connecting rod, one side of the outer wall of the handle is fixedly connected with a connecting head, and the connecting head is fixedly connected with the handle. A connecting box is fixedly connected to one side of the outer wall of the connector, a positioning assembly is arranged in the connecting rod and used for adjusting the length of the screwdriver rod, a sliding assembly is arranged on one side of the outer wall of the connecting rod and used for assisting adjustment of the screwdriver rod, and the positioning assembly comprises a fixing disc. The outer wall of the fixing disc is fixedly connected to the interior of the connecting rod. According to the screwdriver, the length of the screwdriver rod can be conveniently adjusted, operation inconvenience caused by the fact that the length of the screwdriver is fixed is avoided, the universality and scene adaptability of the screwdriver are enhanced, and the screwdriver head can be conveniently replaced through the arrangement of the elastic gasket.

Description

Technical Field

[0001] This utility model relates to the field of maintenance tools, and in particular to a special tool for the maintenance of DC ice melting devices. Background Technology

[0002] During the operation of the power system, the DC de-icing device is a key piece of equipment to ensure the safe and stable operation of transmission lines. The efficiency and accuracy of its maintenance work are of paramount importance. Due to the complex structure and compact spatial layout of the DC de-icing device, maintenance personnel need to use specific tools to enter the narrow space to complete the disassembly, installation and debugging of components. Therefore, developing a special tool that can meet the needs of diverse maintenance scenarios is of great significance for improving maintenance efficiency and ensuring the stable operation of the power system.

[0003] Existing maintenance tools for DC de-icing devices mostly adopt traditional mechanical structures, such as fixed screwdriver bar designs. These tools typically consist of a screwdriver head, a screwdriver bar, and a handle. The screwdriver bar and handle are connected by threads or are integrally formed. The screwdriver head is fixed to one end of the screwdriver bar by a slot or welding. In actual operation, maintenance personnel hold the handle and use the fit between the screwdriver head and the part to be maintained to apply torque by hand to achieve disassembly or installation. This traditional structure, with its simple construction and mature manufacturing process, meets the needs of routine maintenance operations to a certain extent.

[0004] However, due to the complex and varied internal spatial structure of the DC de-icing device, the existing fixed screwdriver tools, due to their fixed length, often encounter problems when facing special maintenance locations such as deep cavities and narrow gaps. This leads to difficulties in reaching the target components, forcing maintenance personnel to frequently change to different specifications of tools, which in turn prolongs maintenance time, reduces maintenance efficiency, and easily damages components due to inconvenient operation, thus affecting the quality of equipment maintenance. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a special tool for the maintenance of DC ice-melting devices, which aims to improve the problem that the traditional special tool for the maintenance of DC ice-melting devices has a fixed length, resulting in longer maintenance time and reduced work efficiency.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A special tool for the maintenance of a DC ice-melting device, comprising a handle and a connector. A screwdriver head is disposed inside the connector. A connecting rod is fixedly connected to one side of the outer wall of the connector. A connector head is fixedly connected to one side of the outer wall of the handle. A connecting box is fixedly connected to one side of the outer wall of the connector head. A positioning component is disposed inside the connecting rod, used to adjust the length of the screwdriver head. A sliding component is disposed on one side of the outer wall of the connecting rod, used to assist in the adjustment of the screwdriver head. The positioning component includes a fixed plate. The outer wall of the fixed plate is fixedly connected to the inside of the connecting rod. A connecting rod is fixedly connected inside the fixed plate. A spring is fixedly connected to one side of the outer wall of the fixed plate, and a positioning block is fixedly connected to one end of the spring.

[0007] Furthermore, the sliding assembly includes a slider, which is fixedly connected to one side of the outer wall of the connecting rod. A groove is provided inside the connecting box, and the outer wall of the slider is slidably connected to the inner wall of the groove.

[0008] Furthermore, an elastic washer is fixedly connected to the outer wall of the screwdriver head, and a mating hole is provided inside the connector.

[0009] Furthermore, the outer wall of the screwdriver bit is slidably connected to the inner wall of the mating hole, and the elastic washer is used to elastically connect the screwdriver bit inside the mating hole.

[0010] Furthermore, an anti-slip pad is fixedly connected to the outer wall of the handle, and the anti-slip pad is distributed in a ring around the outside of the handle.

[0011] Furthermore, a retaining ring is fixedly connected to the outer wall of the handle, and the retaining ring is used to assist in the use of the screwdriver.

[0012] Furthermore, the connecting box has a positioning hole inside, which is used to mate with the positioning block.

[0013] Furthermore, the outer wall of the connecting rod is slidably connected to the inner wall of the connecting box.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. In this utility model, by pressing the positioning block to disengage it from the positioning hole, and simultaneously pushing or pulling the connecting rod along the slide groove, the length of the screwdriver bar can be adjusted according to actual needs. After adjustment, the positioning block is released, and the spring resets the positioning block to embed it into the new positioning hole, thereby completing the locking. This achieves convenient adjustment of the screwdriver bar length, which greatly improves maintenance efficiency, avoids operational inconvenience caused by fixed tool length, and enhances the versatility and adaptability of the tool to various scenarios.

[0016] 2. In this utility model, by setting an elastic washer, the screwdriver head is pulled outward along the mating hole. At this time, the elastic washer is released from the jamming state after being deformed by force, thus realizing convenient replacement of the screwdriver head. Furthermore, the tight fit between the elastic washer and the inner wall of the mating hole effectively blocks the contact between the screwdriver head and air and moisture, thereby preventing the screwdriver head from jamming due to rust and extending the service life of the tool. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of a special tool for the maintenance of a DC ice-melting device proposed in this utility model;

[0018] Figure 2 This is a schematic diagram of the handle portion of a special tool for the maintenance of a DC ice-melting device proposed in this utility model.

[0019] Figure 3 This is a schematic diagram of the connection box part of a special tool for the maintenance of a DC ice melting device proposed in this utility model.

[0020] Figure 4 This is a schematic diagram of the connecting rod part of a special tool for the maintenance of a DC ice melting device proposed in this utility model;

[0021] Figure 5 This is a schematic diagram of the connecting part of a special tool for the maintenance of a DC ice-melting device proposed in this utility model.

[0022] In the diagram: 1. Base; 2. Rectangular groove; 3. Sliding block; 4. Sliding rod; 5. Rectangular tube; 6. Rectangular column; 7. Spring; 8. Rectangular block; 9. Threaded rod; 10. Handle; 11. Protective cover; 12. Threaded sleeve; 13. Circular cylinder; 14. Fixing bolt; 15. Cutting disc; 16. Rectangular fixing groove. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Reference Figure 1 - Figure 4This utility model provides an embodiment of a special tool for the maintenance of a DC ice-melting device, including a handle 1 and a connector 3. A screwdriver head 4 is provided inside the connector 3. A connecting rod 17 is fixedly connected to one side of the outer wall of the connector 3. A connector head 13 is fixedly connected to one side of the outer wall of the handle 1. A connecting box 5 is fixedly connected to one side of the outer wall of the connector head 13. A positioning component is provided inside the connecting rod 17 for adjusting the length of the screwdriver head. A sliding component is provided on one side of the outer wall of the connecting rod 17 for assisting in the adjustment of the screwdriver head. The positioning component includes a fixed plate 11. The outer wall of the fixed plate 11 is fixedly connected to the inside of the connecting rod 17. A connecting rod 12 is fixedly connected inside the fixed plate 11. A spring 10 is fixedly connected to one side of the outer wall of the fixed plate 11. A positioning block 9 is fixedly connected to one end of the spring 10. A positioning hole 8 is provided inside the connecting box 5. The sliding component includes a slider 7. The slider 7 is fixedly connected to one side of the outer wall of the connecting rod 17. A sliding groove 6 is provided inside the connecting box 5. The outer wall of the slider 7 is slidably connected to the inner wall of the sliding groove 6.

[0025] Specifically, the handle 1 adopts a cylindrical hollow structure with a non-slip surface for stable grip by the operator. The connector 3 is a cylindrical metal part with one open end and an internal mounting cavity adapted to the screwdriver head 4. The open end is fixedly connected to the connecting rod 17 by welding to form the screwdriver's rod structure. The connecting rod 17 is a hollow metal rod with an internal space to accommodate the positioning component. Its outer diameter matches the inner diameter of the connecting box 5 to ensure coaxiality during sliding. The fixing plate 11 is a circular metal sheet, fixed to the inside of the connecting rod 17 near the end by screws. The docking rod 12 is a cylindrical metal rod, vertically fixed to the center of the fixing plate 11. Its outer diameter is smaller than the diameter of the center hole of the positioning block 9, allowing the positioning block 9 to slide axially along the docking rod 12. The spring 10 is sleeved on the outside of the docking rod 12, with one end pressing against the fixing plate 1. 1. One end is fixedly connected to the inner end face of the positioning block 9. Under normal conditions, the positioning block 9 is pushed towards the connecting box 5 by the elastic force. The positioning block 9 is a cylindrical metal block with an arc-shaped outer end face, which is convenient to insert into the positioning hole 8. The inner side is provided with a groove that cooperates with the spring 10 to ensure stable force transmission of the spring 10. Multiple positioning holes 8 are evenly distributed along the axial direction inside the connecting box 5. The diameter of the positioning hole 8 is the same as the outer diameter of the positioning block 9. The hole spacing is set according to the commonly used length gear in the actual maintenance scenario. The slider 7 is a rectangular metal block, fixed directly above the outer wall of the connecting rod 17. Its width is equal to the width of the slide groove 6, and its height is slightly less than the depth of the slide groove 6 to ensure that it is neither loose nor stuck when sliding. The slide groove 6 is a rectangular groove opened in the inner wall of the connecting box 5. Its length matches the maximum extension stroke of the connecting rod 17 to provide precise guidance for the movement of the connecting rod 17.

[0026] Reference Figure 1 and Figure 5The screwdriver head 4 has an elastic washer 14 fixedly connected to its outer wall. The connector 3 has a mating hole 15 inside. The outer wall of the screwdriver head 4 is slidably connected to the inner wall of the mating hole 15. The elastic washer 14 is used to elastically connect the screwdriver head 4 inside the mating hole 15. The handle 1 has an anti-slip pad 16 fixedly connected to its outer wall. The anti-slip pad 16 is distributed in a ring on the outside of the handle 1. The handle 1 has a protective ring 2 fixedly connected to its outer wall. The protective ring 2 is used to assist in the use of the screwdriver.

[0027] Specifically, the screwdriver head 4 is detachably connected through the sliding fit between its outer wall and the mating hole 15. The elastic washer 14 is a ring structure, fixed in the middle of the outer wall of the screwdriver head 4, and its outer diameter is slightly larger than the inner diameter of the mating hole 15. During installation, it generates elastic force through compression deformation, so that the screwdriver head 4 is firmly locked in the mating hole 15. The anti-slip pad 16 is made of rubber with a textured surface, and it is wrapped around the outer wall of the handle 1 in a ring shape to increase the friction between the hand and the handle 1 and prevent slippage during operation. The retaining ring 2 is a ring structure, fixed to the end of the handle 1, and its inner diameter is larger than the diameter of the finger. When using it, the finger can hook the retaining ring 2 to provide extra grip and prevent the tool from slipping out of the hand due to excessive force.

[0028] Working principle: When the length of the screwdriver bar needs to be adjusted, the positioning block 9 can be pressed first. The positioning block 9 will slide along the outer wall of the connecting rod 12, and the spring 10 will also be squeezed by the positioning block 9. At this time, under the pressing force and the squeezing action of the inner wall of the positioning hole 8, the positioning block 9 will disengage from the current positioning hole 8. Then, the connecting rod 17 can be pushed or pulled along the slide groove 6 to adjust to the required length. After the adjustment is completed, the positioning block 9 can be released. At this time, the positioning block 9 will be reset under the elastic action of the spring 10, so that the positioning block 9 is inserted into the new positioning hole 8, thereby completing the locking, thus realizing the convenient adjustment of the screwdriver bar.

[0029] When it is necessary to disassemble the screwdriver head 4, the screwdriver head 4 can be pulled outward along the mating hole 15, so that the elastic washer 14 can be restored to its original shape, thereby releasing the jamming state, which can realize the quick replacement of the screwdriver head. The elastic washer 14 can fit tightly against the inner wall of the mating hole 15 to form a sealing isolation layer, blocking the contact between the screwdriver head 4 and air and moisture, thereby preventing the screwdriver head from jamming due to corrosion. The anti-slip pad 16 can prevent the hand from slipping and improve the safety of operation. The guard ring 2 can be hooked by the fingers during use, providing additional support and preventing the tool from falling out of the hand.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A special tool for overhauling a DC de-icing device, comprising a handle (1) and a connector (3), characterized in that: The connector (3) is provided with a screwdriver head (4) inside. A connecting rod (17) is fixedly connected to one side of the outer wall of the connector (3). A connector head (13) is fixedly connected to one side of the outer wall of the handle (1). A connecting box (5) is fixedly connected to one side of the outer wall of the connector head (13). A positioning component is provided inside the connecting rod (17). The positioning component is used to adjust the length of the screwdriver rod. A sliding component is provided on one side of the outer wall of the connecting rod (17). The sliding component is used to assist in the adjustment of the screwdriver rod. The positioning component includes a fixed plate (11), the outer wall of the fixed plate (11) is fixedly connected to the inside of the connecting rod (17), a docking rod (12) is fixedly connected inside the fixed plate (11), a spring (10) is fixedly connected to one side of the outer wall of the fixed plate (11), and a positioning block (9) is fixedly connected to one end of the spring (10).

2. The special tool for overhauling a DC de-icing device according to claim 1, characterized in that: The sliding assembly includes a slider (7), which is fixedly connected to one side of the outer wall of the connecting rod (17). The connecting box (5) has a groove (6) inside, and the outer wall of the slider (7) is slidably connected to the inner wall of the groove (6).

3. The special tool for overhauling a DC de-icing device according to claim 1, characterized in that: The screwdriver head (4) has an elastic washer (14) fixedly connected to its outer wall, and the connector (3) has a mating hole (15) inside.

4. A special tool for overhauling a DC de-icing device according to claim 3, characterized in that: The outer wall of the screwdriver bit (4) is slidably connected to the inner wall of the mating hole (15), and the elastic washer (14) is used to elastically connect the screwdriver bit (4) inside the mating hole (15).

5. A special tool for overhauling a DC de-icing device according to claim 1, characterized in that: An anti-slip pad (16) is fixedly connected to the outer wall of the handle (1), and the anti-slip pad (16) is distributed in a ring around the outside of the handle (1).

6. A special tool for overhauling a DC de-icing device according to claim 1, characterized in that: The handle (1) has a retaining ring (2) fixedly connected to its outer wall. The retaining ring (2) is used to assist the screwdriver in use.

7. A special tool for overhauling a DC de-icing device according to claim 1, characterized in that: The connecting box (5) has a positioning hole (8) inside, which is used to dock with the positioning block (9).

8. A special tool for overhauling a DC de-icing device according to claim 1, characterized in that: The outer wall of the connecting rod (17) is slidably connected to the inner wall of the connecting box (5).

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