Cable clamp for electric power engineering

Abstract

This utility model relates to the field of power engineering technology and discloses a cable clamp for power engineering, including a cable clamp and a transparent waterproof cover installed on the top of the cable clamp. The transparent waterproof cover includes a transparent top cover, a hexagonal block fixedly connected to the top of the transparent top cover, and interwoven inner ribs fixedly connected to the inner cavity of the transparent top cover. This utility model solves the problems of poor waterproofing, weak shock resistance, and inconvenient monitoring of cable clamp locking components through component collaboration. The transparent waterproof cover, together with the interwoven inner ribs, improves the deformation resistance and creates conditions for the visual monitoring of the three-color indicating gasket. The hexagonal block is easy to disassemble and assemble. The threaded sleeve and the threaded groove achieve a stable seal. The buffer ball absorbs vibration and prevents the sealing gasket from failing. The sealing gasket, sealing groove, transparent top cover, and threaded sleeve form a multiple seal. The three-color gasket is linked to the spring and the limiting strip, and the bolt tightening status is intuitively displayed through color changes, improving overall reliability.

Description

Technical Field

[0001] This utility model relates to the field of power engineering technology, specifically to a cable clamp for power engineering. Background Technology

[0002] In modern power transmission systems, outdoor cable lines bear the critical responsibility of transmitting long-distance, high-capacity electrical energy. As a core component for securing cables, the reliability of the locking mechanism of cable clamps directly affects the safe operation of the entire cable line. However, the complexity of the outdoor environment presents numerous challenges to cable clamps: frequent rainfall and humid air make the clamp locking mechanism highly susceptible to moisture intrusion; simultaneously, cable swaying caused by wind and continuous vibrations from equipment operation can also affect the clamp's tightness. Therefore, designing a waterproof cover suitable for the locking mechanism is essential.

[0003] However, traditional waterproof covers mostly use a simple sealing gasket and threaded structure. Under long-term vibration or temperature changes, the sealing gasket is prone to uneven compression and local gaps, which cannot effectively prevent water from seeping in. At the same time, existing waterproof covers generally lack a visual indication function for pre-tightening status. Workers can only rely on torque wrench retesting or marking line comparison to judge the tightness of the clamp. This method is inefficient when working at height or during emergency inspections, and frequent disassembly of the waterproof cover for testing will further damage its waterproof performance. Utility Model Content

[0004] The purpose of this utility model is to provide a cable clamp for power engineering to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a cable clamp for power engineering, comprising a cable clamp, and further comprising: A visible transparent waterproof cover installed on top of a cable clamp, the transparent waterproof cover including a transparent top cover, a hexagonal block fixedly connected to the top of the transparent top cover, and interwoven inner ribs fixedly connected to the inner cavity of the transparent top cover; A rubber pad is installed inside the cable clamp, and a bolt is installed inside the cable clamp to lock the clamp. One end of the bolt is threaded with a nut, and a three-color tightening washer is installed on one side of the nut.

[0006] Preferably, the cable clamp includes a clamp base, a rubber pad is fixedly connected to the inner cavity of the clamp base, a sealing groove and a threaded groove are respectively opened on the top of the clamp base, a bolt seat is fixedly connected to the top of the inner cavity of the threaded groove, a bolt hole is opened inside the bolt seat, the bolt hole vertically penetrates the clamp base, a bolt is slidably connected inside the bolt hole, the bearing surface of the bolt contacts the end face of the bolt seat, and a buffer groove for matching a transparent waterproof cover is opened on the top of the inner cavity of the threaded groove.

[0007] Preferably, the transparent waterproof cover further includes a threaded sleeve fixedly connected to the bottom of the transparent top cover, and a buffer ball for use with the buffer groove is fixedly connected to the bottom of the threaded sleeve.

[0008] Preferably, a sealing gasket is embedded in the inner cavity of the sealing groove, the top of the sealing gasket is in contact with the transparent top cover, and the inner cavity of the sealing gasket is in contact with the threaded sleeve.

[0009] Preferably, the three-color tightening washer includes a three-color washer, the top of which is respectively fixedly connected to one end of a spring and a limiting strip, the other end of the spring is fixedly connected to the end face of the bolt seat, the limiting strip is slidably connected inside the bolt seat, and the bottom of the three-color washer is in contact with the nut.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention effectively solves the problems of poor waterproof performance, weak shock resistance, and inconvenient monitoring of pre-tightening status in traditional cable clamp waterproof covers through the ingenious cooperation of various components. In the transparent waterproof cover design, the transparent top cover is made of transparent material and is equipped with interwoven inner ribs. The interwoven structure disperses external forces, improves the resistance to deformation, and avoids sealing failure caused by vibration. At the same time, the transparency provides conditions for the visual monitoring of the three-color tensioning gasket. The three-color gasket, together with the spring and the limiting strip, detects position changes as the bolt pre-tightening force changes, thereby realizing color display. Workers can quickly judge the tightness of the bolt by observing the color change. The hexagonal block on the top facilitates quick installation and disassembly, improving operational efficiency. The threaded sleeve is sealed to the threaded groove of the clamp base, ensuring the waterproof cover is firmly fixed. The buffer ball is embedded in the buffer groove, which absorbs vibration energy through elastic deformation, reducing the impact of vibration on the sealing gasket and threaded connection, and preventing waterproof failure caused by uneven compression of the sealing gasket. At the same time, the sealing gasket is embedded in the sealing groove and makes close contact with the transparent top cover and the threaded sleeve, forming multiple sealing barriers, further enhancing the waterproof performance and effectively preventing external moisture from entering. Attached Figure Description

[0011] Figure 1 A schematic diagram of a preferred embodiment of the cable clamp for power engineering provided by this utility model; Figure 2A schematic diagram of the internal cross-sectional structure of the cable clamp for power engineering provided by this utility model; Figure 3 A schematic diagram of the transparent waterproof cover structure provided by this utility model; Figure 4 A schematic diagram of the external and internal broken structure of the clamp base provided by this utility model; Figure 5 Provided by this utility model Figure 4 A magnified structural diagram at point A; Figure 6 A schematic diagram of the three-color pressure relief pad structure provided by this utility model.

[0012] In the diagram: 1. Cable clamp; 2. Transparent waterproof cover; 3. Rubber gasket; 4. Bolt; 5. Nut; 6. Three-color indicator gasket; 11. Clamp base; 12. Sealing groove; 13. Bolt seat; 14. Bolt hole; 15. Threaded groove; 16. Buffer groove; 21. Transparent top cover; 22. Hexagonal block; 23. Interlocking inner rib; 24. Threaded sleeve; 25. Buffer ball; 26. Sealing gasket; 61. Three-color gasket; 62. Spring; 63. Limiting strip. Detailed Implementation

[0013] 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.

[0014] Please see Figures 1-6 As shown, a cable clamp for power engineering is described. The specific implementation of this cable clamp for power engineering is as follows: It includes a cable clamp 1, and a transparent waterproof cover 2 installed on top of the cable clamp 1. The transparent waterproof cover 2 includes a transparent top cover 21, with a hexagonal block 22 fixedly connected to the top of the transparent top cover 21, and interwoven inner ribs 23 fixedly connected to the inner cavity of the transparent top cover 21; a rubber pad 3 installed inside the cable clamp 1, and a bolt 4 installed inside the cable clamp 1 to lock the clamp. One end of the bolt 4 is threadedly connected to a nut 5, and a three-color tightening washer 6 is installed on one side of the nut 5. The three-color tightening washer 6 includes a three-color washer 61, with one end of a spring 62 and a limiting strip 63 fixedly connected to the top of the three-color washer 61 respectively. The other end of the spring 62 is fixedly connected to the end face of a bolt seat 13, and the limiting strip 63 is slidably connected inside the bolt seat 13. The bottom of the three-color washer 61 contacts the nut 5.

[0015] It should be noted that the rubber pad 3 inside the clamp base 11 protects the cable from rigid compression damage and increases the friction between the clamp and the cable, improving the fixing stability. The hexagonal block 22 on the top of the transparent top cover 21 facilitates tool operation and enables quick installation and removal of the waterproof cover. The interwoven inner ribs 23 disperse external forces through their interwoven structure, improving the resistance to deformation and preventing sealing failure caused by vibration. The clamp is locked by setting the bolt seat 13 and bolt hole 14 inside the clamp base 11, which works with the bolt 4 and nut 5. The three-color tensioning washer 6 on one side of the nut 5 plays a key monitoring role. The three-color washer 61 is connected to the bolt seat 13 through the spring 62. The bolt seat 13 has a groove inside that slides with the limiting strip 63. The limiting strip 63 slides within the bolt seat 13. The length of the limiting strip 63 is greater than the elastic stroke of the spring 62. Therefore, the limiting strip 63 will not detach from the interior of the bolt seat 13 when it is not locked. Combined with the elastic force of the spring 62, the three-color indicator washer 6 is already installed on one side of the clamp base 11 when no bolt is installed. When the bolt 4 is tightened, the nut 5 squeezes the three-color washer 61, the spring 62 is compressed, and the three-color washer 61 displays a specific color. If the bolt 4 is loose, the spring 62 returns to its original position and pushes the three-color washer 61, and the color changes accordingly. The transparent top cover 21, together with the interwoven inner ribs 23, ensures both strength and provides a visual window. Workers can quickly determine the bolt tightening status by observing the color change of the three-color washer 61 through the transparent top cover 21.

[0016] The cable clamp 1 includes a clamp base 11, with a rubber pad 3 fixedly connected to the inner cavity of the clamp base 11. The top of the clamp base 11 is provided with a sealing groove 12 and a threaded groove 15. The top of the inner cavity of the threaded groove 15 is fixedly connected with a bolt seat 13. The bolt seat 13 has a bolt hole 14 inside, which penetrates the clamp base 11 vertically. A bolt 4 is slidably connected inside the bolt hole 14, and the bearing surface of the bolt 4 contacts the end face of the bolt seat 13. The top of the inner cavity of the threaded groove 15 is provided with a buffer groove 16 that matches the transparent waterproof cover 2. The transparent waterproof cover 2 also includes a threaded sleeve 24 fixedly connected to the bottom of the transparent top cover 21. The bottom of the threaded sleeve 24 is fixedly connected with a buffer ball 25 that matches the buffer groove 16. A sealing gasket 26 is embedded in the inner cavity of the sealing groove 12. The top of the sealing gasket 26 contacts the transparent top cover 21, and the inner cavity of the sealing gasket 26 contacts the threaded sleeve 24.

[0017] It should be noted that the sealing groove 12 and threaded groove 15 on the top of the clamp base 11 provide a foundation for waterproofing and fixation. The sealing gasket 26 is embedded in the sealing groove 12, and its top is in close contact with the transparent top cover 21 and the inner cavity is in close contact with the threaded sleeve 24, forming multiple waterproof barriers to isolate external moisture. The threaded sleeve 24 is screwed into the threaded groove 15 to securely install the visible transparent waterproof cover 2. At the same time, the buffer ball 25 at the bottom of the threaded sleeve 24 is embedded in the buffer groove 16. When the cable is shaken by wind or the equipment vibrates, the buffer ball 25 elastically deforms to absorb energy, reducing the impact of vibration on the sealing gasket 26 and preventing uneven compression of the sealing gasket 26 from causing gaps. This ensures both waterproof performance and enhances shock resistance.

[0018] Working principle: When using this cable clamp 1, the operator first removes the transparent waterproof covers 2 on both sides of the clamp base 11, places the cable inside the clamp base 11, ensuring the outer surface of the cable is in full contact with the rubber pad 3, then passes the bolt 4 through the bolt hole 14 in the bolt seat 13, ensuring the bottom surface of the bolt 4 is tightly fitted with the end face of the bolt seat 13. The bolt 4 then passes through a three-color indicator washer 6 and is threaded onto the nut 5, so that the bottom of the three-color washer 61 contacts the top surface of the nut 5, forming a contact between the three-color washer 61 and the nut 5. Axial limiting and radial guidance, tighten nut 5, nut 5 applies pressure to spring 62 through tri-color washer 61, spring 62 compresses to generate elastic reaction force, keeping tri-color washer 61 in close contact with bolt seat 13 and nut 5. When the preload of bolt 4 changes, the compression of spring 62 changes accordingly, causing axial displacement of tri-color washer 61. Through the exposed state of its surface color coating, take out the visible transparent waterproof cover 2, align the threaded sleeve 24 at the bottom of its bottom with the threaded groove 15 at the top of clamp base 11, thread The external thread on the outer wall of the sleeve 24 engages with the internal thread on the inner wall of the threaded groove 15. Simultaneously, the buffer ball 25 at the bottom of the threaded sleeve 24 is embedded in the buffer groove 16. By clamping the hexagonal block 22 on the top of the transparent top cover 21 with a wrench, the transparent waterproof cover 2 is rotated clockwise until the threaded sleeve 24 is fully screwed into the threaded groove 15. The bottom surface of the transparent top cover 21 presses tightly against the sealing gasket 26 in the sealing groove 12. The top of the sealing gasket 26 is tightly fitted with the bottom surface of the transparent top cover 21, and the inner cavity is tightly fitted with the outer wall of the threaded sleeve 24, forming a tight seal between the transparent top cover 21 and the bottom surface of the transparent top cover 21. The ring-shaped sealing structure of "26" and "24" combined with the spiral seal of the threaded connection effectively prevents rainwater and moisture from entering the clamp. During inspection and maintenance, workers can directly observe the color status of the three-color indicator gasket 6 through the transparent top cover 21 without disassembling the transparent waterproof cover 2: when the bolt 4 is correctly pre-tightened, the three-color gasket 61 is compressed by the nut 5, displaying the preset normal working color; if the bolt 4 is loose, the pressure of the nut 5 on the three-color gasket 61 decreases, the spring 62 resets, and pushes the three-color gasket 61 to move, revealing the warning color, indicating that tightening is required. When internal components need repair, the transparent waterproof cover 2 can be removed by rotating the hexagonal block 22 counterclockwise. At this time, the sealing gasket 26 separates from the threaded sleeve 24, allowing for inspection or replacement of the sealing gasket 26. Disassembly of the bolt 4 requires first loosening the nut 5, and the three-color gasket 61 resets under the action of the spring 62, facilitating reinstallation and adjustment after subsequent maintenance.

[0019] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0020] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cable clamp for power engineering, comprising a cable clamp (1), characterized in that, Also includes: A transparent waterproof cover (2) is installed on top of the cable clamp (1). The transparent waterproof cover (2) includes a transparent top cover (21). A hexagonal block (22) is fixedly connected to the top of the transparent top cover (21). Interwoven inner ribs (23) are fixedly connected to the inner cavity of the transparent top cover (21). A rubber pad (3) is installed inside the cable clamp (1), and a bolt (4) is installed inside the cable clamp (1) to lock the clamp. One end of the bolt (4) is threaded with a nut (5), and a three-color tightening washer (6) is installed on one side of the nut (5).

2. The cable clamp for power engineering according to claim 1, characterized in that: The cable clamp (1) includes a clamp base (11), a rubber pad (3) is fixedly connected to the inner cavity of the clamp base (11), a sealing groove (12) and a threaded groove (15) are respectively opened on the top of the clamp base (11), a bolt seat (13) is fixedly connected to the top of the inner cavity of the threaded groove (15), a bolt hole (14) is opened inside the bolt seat (13), the bolt hole (14) vertically penetrates the clamp base (11), a bolt (4) is slidably connected inside the bolt hole (14), the bottom surface of the bolt (4) contacts the end face of the bolt seat (13), and a buffer groove (16) that matches the transparent waterproof cover (2) is opened on the top of the inner cavity of the threaded groove (15).

3. The cable clamp for power engineering according to claim 1, characterized in that: The transparent waterproof cover (2) also includes a threaded sleeve (24) fixedly connected to the bottom of the transparent top cover (21), and the bottom of the threaded sleeve (24) is fixedly connected to a buffer ball (25) used in conjunction with the buffer groove (16).

4. A cable clamp for power engineering according to claim 2, characterized in that: The inner cavity of the sealing groove (12) is embedded with a sealing gasket (26), the top of the sealing gasket (26) is in contact with the transparent top cover (21), and the inner cavity of the sealing gasket (26) is in contact with the threaded sleeve (24).

5. A cable clamp for power engineering according to claim 1, characterized in that: The three-color pressure washer (6) includes a three-color washer (61), the top of which is fixedly connected to one end of a spring (62) and a limiting strip (63). The other end of the spring (62) is fixedly connected to the end face of the bolt seat (13). The limiting strip (63) is slidably connected inside the bolt seat (13). The bottom of the three-color washer (61) is in contact with the nut (5).

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