High-strength wear-resistant electric power fitting

Abstract

The utility model discloses a high-strength wear-resistant electric power fitting, which belongs to the technical field of electric power fittings and comprises a U-shaped bolt, a traction frame is sleeved on the outer surface of the U-shaped bolt, a stay wire is clamped in the traction frame, a clamping groove and a sliding groove are respectively arranged in the traction frame, the stay wire is clamped in the clamping groove, and the sliding groove is arranged in the clamping groove. The interior of the traction frame is rotatably connected with a worm, the worm is arranged in the sliding groove, the interior of the traction frame is rotatably connected with a rotating rod, the outer surface of the rotating rod is fixedly connected with a worm gear, the outer surface of the worm gear is in meshed connection with the outer surface of the worm, the outer surface of the worm is in threaded connection with a pushing block, and the pushing block is slidably connected in the sliding groove; the right side face of the pushing block makes contact with the outer surface of the pull wire. The high-strength wear-resistant electric power fitting achieves the effects that the connection between the stay wire and the traction frame does not need to bend the stay wire in advance and continuously adjust the stay wire, the matching convenience of the stay wire and the electric power fitting is improved, and the assembling efficiency of the electric power fitting and the stay wire is improved.

Description

Technical Field

[0001] This application belongs to the field of power fittings technology, and in particular relates to a high-strength wear-resistant power fitting. Background Technology

[0002] Power fittings are metal accessories used to connect and assemble various devices in a power system, serving to transmit mechanical loads, electrical loads, and provide certain protective functions. Iron or aluminum metal accessories widely used in power transmission lines are collectively referred to as fittings. Fittings come in many varieties and have diverse uses. Examples include various clamps for installing conductors, various hanging rings for forming insulator strings, various crimping tubes and repair tubes for connecting conductors, and various types of spacers on split conductors. Since power fittings are typically used outdoors, processes such as galvanizing are usually applied to them to improve their corrosion and wear resistance, and to some extent, to enhance their structural strength, in order to increase their service life.

[0003] The existing utility model with authorization announcement number CN208723130U discloses a wear-resistant power fitting, including a fitting body, a first pressure claw device fixedly installed on the right side of the fitting body, a second pressure claw device fixedly installed on the left side of the fitting body, a receiving cavity provided inside the fitting body, and a core tube fixedly installed on the left side of the fitting body.

[0004] The above technical solution provides double protection without affecting operation. The outer casing gives the power fitting high toughness, high strength, and good wear resistance, significantly extending its service life and improving practicality. The fastening groove enhances the fitting's tightness, further extending its lifespan. However, with this solution, when using the power fitting with a guy wire to fix power facilities, the guy wire usually needs to be bent and the bending angle constantly adjusted to smoothly pass through the fitting for fixation. Since the guy wire is typically steel, bending the end is time-consuming and laborious, resulting in low installation efficiency and affecting the ease of use of the power fitting.

[0005] To address this issue, we propose a high-strength, wear-resistant electrical fitting. Utility Model Content

[0006] The purpose of this application is to solve the problem in the prior art that the connection between power cable fittings and power facility guy wires requires bending the steel cable first, which makes the installation of power cable fittings and power facility guy wires time-consuming and labor-intensive. Therefore, a high-strength wear-resistant power fitting is proposed.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A high-strength, wear-resistant electrical fitting includes a U-bolt. A pull frame is fitted onto the outer surface of the U-bolt. A pull wire is engaged inside the pull frame. The pull frame has a locking groove and a sliding groove inside, with the pull wire engaged in the locking groove. A worm gear is rotatably connected inside the pull frame and positioned inside the sliding groove. A rotating rod is rotatably connected inside the pull frame. A worm wheel is fixedly connected to the outer surface of the rotating rod, and the outer surface of the worm wheel meshes with the outer surface of the worm. A push block is threadedly connected to the outer surface of the worm and slidably connected inside the sliding groove. The right side of the push block contacts the outer surface of the pull wire. The end of the rotating rod away from the worm wheel passes through the pull frame and is fixedly connected to a knob.

[0009] Preferably, the outer surface of the U-bolt is threaded with two first limiting bolts, and the bottom surfaces of the two first limiting bolts are in contact with the upper surface of the traction frame.

[0010] Preferably, the outer surface of the U-bolt is threaded with two second limiting bolts, and the bottom surfaces of the two second limiting bolts are in contact with the upper surfaces of the two first limiting bolts respectively.

[0011] Preferably, the upper and lower surfaces of the traction frame are fixedly connected with rubber sealing rings, and the inner walls of the two rubber sealing rings are in contact with the outer surface of the pull wire.

[0012] Preferably, a limiting ring is fixedly connected to the left end of the worm gear, and the limiting ring is rotatably connected inside the traction frame.

[0013] Preferably, the front of the traction frame is provided with a positioning plate, and the internal thread of the positioning plate is connected to two positioning bolts. One of the positioning bolts, with one end near the positioning plate, passes through the interior of the traction frame, and the other positioning bolt, with one end near the positioning plate, passes through the interior of the knob. The two positioning bolts are respectively threadedly connected to the traction frame and the knob.

[0014] Preferably, a pad is fixedly connected to the front of the traction frame, the front of the pad is in contact with the back of the positioning plate, and the inner wall of the pad is in contact with the outer surface of one of the positioning bolts.

[0015] In summary, the technical effects and advantages of this application are as follows:

[0016] By incorporating a pull frame with a locking groove, once the pull wire is inserted into the pull frame, rotating the rotating rod engages with the worm gear and worm wheel, causing the worm to rotate. This, in turn, pushes the push block to slide within the sliding groove until the push block pushes the pull wire to the right, deep into the locking groove. At this point, the pull wire bends, increasing the friction between the pull wire, the locking groove, and the pull frame. This allows the pull wire and pull frame to withstand stronger tension without loosening, eliminating the need for pre-bending and constant adjustments to connect the pull wire and the pull frame. This increases the ease of connection between the pull wire and the power cable hardware, improving the assembly efficiency of the power cable hardware and the pull wire. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the U-shaped bolt of this utility model;

[0018] Figure 2 This is a three-dimensional cross-sectional structural diagram of the traction frame of this utility model;

[0019] Figure 3 This is a three-dimensional structural diagram of the drawbar of this utility model;

[0020] Figure 4 This is a three-dimensional structural diagram of the rotating rod of this utility model.

[0021] In the diagram: 1. U-bolt; 2. Pull frame; 3. Snap-fit ​​groove; 4. Pull wire; 5. Sliding groove; 6. Worm gear; 7. Rotating rod; 8. Worm wheel; 9. Push block; 10. Knob; 11. First limit bolt; 12. Second limit bolt; 13. Rubber sealing ring; 14. Limit ring; 15. Positioning plate; 16. Positioning bolt; 17. Pad. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Reference Figure 1-4 A high-strength wear-resistant electrical fitting includes a U-bolt 1, a tension frame 2 is fitted on the outer surface of the U-bolt 1, and two first limiting bolts 11 are threadedly connected to the outer surface of the U-bolt 1. The bottom surfaces of the two first limiting bolts 11 are in contact with the upper surface of the tension frame 2. The first limiting bolts 11 can restrict the position of the tension frame 2 on the U-bolt 1, ensuring the effective cooperation between the tension frame 2 and the U-bolt 1.

[0024] The tension frame 2 has a pull wire 4 inside. The tension frame 2 has a snap-fit ​​groove 3 and a sliding groove 5 inside. The pull wire 4 is snapped into the snap-fit ​​groove 3. The outer surface of the U-bolt 1 is threaded with two second limiting bolts 12. The bottom surface of the two second limiting bolts 12 contacts the upper surface of the two first limiting bolts 11 respectively. The second limiting bolts 12 cooperate with the first limiting bolts 11 to further improve the tensile strength of the tension frame 2 and the U-bolt 1, making the tension frame 2 less likely to loosen from the U-bolt 1.

[0025] The traction frame 2 is internally rotatably connected to a worm gear 6, which is located inside the sliding groove 5. The traction frame 2 is internally rotatably connected to a rotating rod 7. Rubber sealing rings 13 are fixedly connected to the upper and lower surfaces of the traction frame 2. The inner walls of the two rubber sealing rings 13 are in contact with the outer surface of the pull wire 4. The rubber sealing rings 13 can increase the sealing between the pull wire 4 and the traction frame 2, preventing rainwater from entering the interior of the traction frame 2.

[0026] A worm gear 8 is fixedly connected to the outer surface of the rotating rod 7. The outer surface of the worm gear 8 meshes with the outer surface of the worm 6. A limit ring 14 is fixedly connected to the left end of the worm 6. The limit ring 14 is rotatably connected inside the traction frame 2. The limit ring 14 can restrict the position of the worm 6 inside the traction frame 2 without affecting the normal rotation of the worm 6, thus ensuring the rotational stability of the worm 6.

[0027] The outer surface of the worm gear 6 is threaded with a push block 9, which is slidably connected inside the sliding groove 5. The right side of the push block 9 is in contact with the outer surface of the pull wire 4. The end of the rotating rod 7 away from the worm wheel 8 passes through the traction frame 2 and is fixedly connected to a knob 10. A positioning plate 15 is provided on the front of the traction frame 2. Two positioning bolts 16 are threaded inside the positioning plate 15. One positioning bolt 16 passes through the interior of the traction frame 2 at the end near the positioning plate 15, and the other positioning bolt 16 passes through the interior of the knob 10 at the end near the positioning plate 15. The two positioning bolts 16 are threadedly connected to the traction frame 2 and the knob 10, respectively. By using the positioning plate 15 in conjunction with the positioning bolts 16, the knob 10 can be fixed after rotation, making it less likely for the knob 10 to rotate in the opposite direction, thus ensuring the stability of the rotating rod 7 after rotation.

[0028] A pad 17 is fixedly connected to the front of the traction frame 2. The front of the pad 17 contacts the back of the positioning plate 15. The inner wall of the pad 17 contacts the outer surface of one of the positioning bolts 16. The pad 17 can fill the height difference between the traction frame 2 and the knob 10, ensuring the positioning effect of the positioning plate 15 and the positioning bolt 16 on the knob 10.

[0029] The working principle of this utility model is as follows: First, connect the U-bolt 1 to the connector. Then, place the pull frame 2 onto the U-bolt 1. Next, pass one end of the pull wire 4 through the pull frame 2. Then, use a wrench and knob 10 to rotate the rotating rod 7. The rotation of the rotating rod 7, in conjunction with the worm gear 8, drives the worm 6 to rotate. When the worm 6 rotates, it drives the pushing block 9 to slide to the right inside the sliding groove 5 until the right end of the pushing block 9 pushes the pull wire 4 to the depth of the locking groove 3. At this point, the pull wire 4 bends, increasing the friction between the pull wire 4 and the locking groove 3 and the pull frame 2. This allows the pull wire 4 and the pull frame 2 to withstand stronger tension without loosening, eliminating the need for pre-bending the pull wire 4 and continuous bending. The adjustment increases the ease of connection between the pull cable 4 and the power fittings, improving the assembly efficiency of the power fittings and the pull cable 4. Furthermore, since the worm gear 8 and worm 6 use a relatively effortless transmission method, it allows workers to rotate the knob 10 more easily. The worm gear 8 and worm 6 cannot drive in reverse, ensuring the tightness of the pull cable 4 and making it less prone to loosening. Then, the positioning plate 15, in conjunction with the pad 17 and positioning bolt 16, further secures the position of the knob 10, making the adjustment of the knob 10 more stable. Finally, simply screwing the first limiting bolt 11 and the second limiting bolt 12 onto the U-bolt 1 fixes the position of the pulling frame 2 on the U-bolt 1, ensuring the pulling effect on the pull cable 4.

[0030] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0032] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A high-strength, wear-resistant electrical fitting, comprising a U-bolt (1), characterized in that: The outer surface of the U-bolt (1) is fitted with a traction frame (2), and a pull wire (4) is snapped into the inside of the traction frame (2). The traction frame (2) is provided with a snap-fit ​​groove (3) and a sliding groove (5) respectively. The pull wire (4) is snapped into the inside of the snap-fit ​​groove (3). A worm gear (6) is rotatably connected inside the traction frame (2). The worm gear (6) is set inside the sliding groove (5). A rotating rod (7) is rotatably connected inside the traction frame (2). A worm wheel (8) is fixedly connected to the outer surface of the rotating rod (7). The outer surface of the worm wheel (8) meshes with the outer surface of the worm gear (6). A push block (9) is threadedly connected to the outer surface of the worm gear (6). The push block (9) is slidably connected inside the sliding groove (5). The right side of the push block (9) is in contact with the outer surface of the pull wire (4). The end of the rotating rod (7) away from the worm wheel (8) passes through the traction frame (2) and is fixedly connected with a knob (10).

2. The high-strength wear-resistant electrical fitting according to claim 1, characterized in that: The outer surface of the U-bolt (1) is threaded with two first limiting bolts (11), and the bottom surfaces of the two first limiting bolts (11) are in contact with the upper surface of the traction frame (2).

3. A high-strength wear-resistant electrical fitting according to claim 2, characterized in that: The outer surface of the U-bolt (1) is threaded with two second limiting bolts (12), and the bottom surfaces of the two second limiting bolts (12) are in contact with the upper surfaces of the two first limiting bolts (11).

4. A high-strength wear-resistant electrical fitting according to claim 1, characterized in that: The upper and lower surfaces of the traction frame (2) are fixedly connected with rubber sealing rings (13), and the inner walls of the two rubber sealing rings (13) are in contact with the outer surface of the pull wire (4).

5. A high-strength wear-resistant electrical fitting according to claim 1, characterized in that: The left end of the worm (6) is fixedly connected to a limiting ring (14), which is rotatably connected inside the traction frame (2).

6. A high-strength wear-resistant electrical fitting according to claim 1, characterized in that: The front of the traction frame (2) is provided with a positioning plate (15). The internal thread of the positioning plate (15) is connected to two positioning bolts (16). One of the positioning bolts (16) is inserted into the interior of the traction frame (2) at one end near the positioning plate (15), and the other positioning bolt (16) is inserted into the interior of the knob (10) at one end near the positioning plate (15). The two positioning bolts (16) are threadedly connected to the traction frame (2) and the knob (10) respectively.

7. A high-strength wear-resistant electrical fitting according to claim 6, characterized in that: The front of the traction frame (2) is fixedly connected to a pad (17), the front of the pad (17) is in contact with the back of the positioning plate (15), and the inner wall of the pad (17) is in contact with the outer surface of one of the positioning bolts (16).

Images