A fixing device for easy installation of power lines

Abstract

This utility model discloses a fixing device for easy installation of power lines, including a U-shaped screw and a clamp fixing part passing through the U-shaped screw. The clamp fixing part includes an upper fixing sleeve and a lower fixing sleeve arranged coaxially. A first fixing component is embedded in the upper fixing sleeve. The first fixing component is composed of multiple wedges that are integrally fan-shaped. An annular fixing seat is provided at the end of each wedge. The multiple wedges are arranged circumferentially along the fixing seat, so that the multiple wedges form a cone shape when fully engaged. A second fixing component is fixedly installed in the lower fixing sleeve. The power line to be fixed passes through the first fixing component and the second fixing component, and is tightened by the second fixing component. This utility model has the advantages of facilitating the installation and removal of power lines and improving the construction efficiency of power lines.

Description

Technical Field

[0001] This utility model relates to the field of power cable technology, and in particular to a fixing device that facilitates the installation of power cables. Background Technology

[0002] Power guy wires (also known as overhead line guy wires) are an important component of overhead power transmission and distribution lines. By forming a triangular structure, guy wires prevent towers from tilting, bending, or collapsing due to external forces such as conductor tension, wind, and icing. In practice, installers need to pre-bend the guy wires in a warehouse and thread them into suitable positions in UT clamps for easy fixation during installation. However, guy wires are often quite thick to withstand harsh outdoor environments, making manual bending and installation difficult for workers. Furthermore, manually bending and threading them into the UT clamps often results in repeated operations, further impacting construction efficiency. Therefore, to solve these technical problems, this invention provides a device that allows for guy wire fixation without bending the wires. Utility Model Content

[0003] In view of the shortcomings of the prior art, the technical problem to be solved by this utility model is: how to provide a device that facilitates the installation and fixing of power lines.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] A fixing device for easy installation of power cables includes a U-shaped screw and a wire clamp fixing part passing through the U-shaped screw; the wire clamp fixing part includes an upper fixing sleeve and a lower fixing sleeve arranged coaxially, the upper fixing sleeve is embedded with a first fixing component; the upper fixing sleeve is axially penetrating inside, and the inner diameter of the upper fixing sleeve gradually increases towards the lower fixing sleeve;

[0006] The first fixing component consists of multiple wedges that are fan-shaped as a whole. Each wedge has an annular fixing seat at its end. The multiple wedges are arranged circumferentially along the fixing seats, so that when the multiple wedges are fully engaged, they form a cone shape. The maximum outer diameter formed by the multiple wedges when fully engaged is greater than the maximum inner diameter of the upper fixing sleeve, and the minimum outer diameter formed by the multiple wedges when fully engaged is greater than the minimum inner diameter of the upper fixing sleeve.

[0007] The lower fixing sleeve is fixedly provided with a second fixing component. The power cable that needs to be fixed is passed through the first fixing component and the second fixing component, and the second fixing component helps to tighten it.

[0008] Furthermore, the second fixing component includes two interlocking clamping blocks, each clamping block having a U-shaped groove extending through its length, such that when the two clamping blocks are interlocked, a channel for the power cable to pass through is formed; each clamping block has a through-hole and symmetrically arranged pin hole, and a plurality of such holes are arranged along its length; a pin is inserted into the pin hole, such that when the pin is inserted, it is symmetrically distributed on both sides of the width direction of the U-shaped groove; auxiliary clamping teeth for assisting in fixing the power cable are sleeved on the pin, and a spring is connected between the end of the auxiliary clamping teeth away from the pin and the side wall of the U-shaped groove.

[0009] Furthermore, the auxiliary clamping tooth has a limiting post protruding along the direction of the pin on one end away from the pin. A limiting plate is provided between two adjacent limiting posts in the width direction. The limiting plate has a protruding block in the width direction and is inclined towards the upper fixing sleeve. A limiting groove is formed between the protruding block and the body of the limiting plate. The limiting plate has an upwardly extending connecting rod. The lower fixing sleeve and the clamping block pass through the connecting rod to form a strip-shaped limiting hole, so that when the connecting rod moves to one end of the strip-shaped limiting hole, the bottom of the limiting groove abuts against the limiting post. When the connecting rod moves to the other end of the strip-shaped limiting hole, the end of the protruding block abuts against the limiting post. The clamping block has a through threaded hole on one end away from the upper fixing sleeve. A limiting bolt is fitted in the threaded hole. When the limiting bolt is tightened, its end abuts against the connecting rod.

[0010] Furthermore, a push plate is fixedly provided on the connecting rod to facilitate the movement of the limiting plate.

[0011] Furthermore, the second fixing component includes two interlocking clamping plates, each with a through hole along its length. The through hole contains radially protruding friction teeth that allow it to be in an interference fit with a power cable placed within the through hole. The lower fixing sleeve has through threaded holes on both sides of the through hole in its width direction, and multiple threaded holes are provided along its length. Fixing bolts are screwed into the threaded holes to fasten the two clamping plates together within the lower fixing sleeve.

[0012] Furthermore, the upper fixing sleeve is inserted into the lower fixing sleeve. The upper fixing sleeve has connecting posts that protrude radially outward and are symmetrically arranged on the upper fixing sleeve. The lower fixing sleeve has corresponding through-holes. The connecting posts are engaged in the through-holes, so that the upper fixing sleeve and the lower fixing sleeve are connected as a whole to form the wire clamp fixing part.

[0013] Furthermore, the upper and lower fixing sleeves are provided with lugs on both sides in the width direction, and the upper and lower fixing sleeves are passed through the lugs onto the U-shaped screw; a telescopic spring is provided between the upper and lower fixing sleeves, and the telescopic spring abuts against the two lugs.

[0014] Furthermore, the wedge has a groove extending through the width at one end away from the fixing base, and the plurality of grooves form an annular groove as the wedges are arranged, with a compression spring embedded in the annular groove.

[0015] Furthermore, a rain cap is provided on the end of the upper fixing sleeve that is opposite to the lower fixing sleeve.

[0016] Furthermore, the wedge also has friction teeth that protrude radially inward.

[0017] In summary, this utility model has the advantages of facilitating the installation and disassembly of power lines and improving the construction efficiency of power lines.

[0018] The beneficial effects of this utility model are that by pushing the push plate, the limiting plate is moved towards the upper fixing sleeve, so that the limiting hook groove on the limiting plate firmly locks the auxiliary clamping teeth, thereby achieving auxiliary clamping of the power cable passing between the two auxiliary clamping teeth; and the wedge of the first fixing component will be embedded more tightly under the action of tension, achieving self-locking and fixing the power cable; in this way, when installing the power cable, there is no need to pre-bend the power cable for installation, and the power cable can be easily fixed in a suitable position, which is conducive to increasing construction efficiency;

[0019] During disassembly, simply unscrew the limiting screw and push the push plate to move the limiting plate to the other end of the strip-shaped limiting hole. The limiting hook groove will loosen the limiting post, assisting in the clamping and loosening. Loosen the nut on the U-shaped screw. At this time, the compression spring at one end of the wedge and the telescopic spring between the upper and lower fixed sleeves will move the wedge backward under the action of elastic force to loosen the power cable, which is conducive to the disassembly of the power cable. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0021] Figure 2 This is a schematic diagram of the exploded structure of the first embodiment.

[0022] Figure 3 This is a schematic diagram of the internal structure of the first embodiment.

[0023] Figure 4 This is a schematic diagram of the exploded structure of the second embodiment.

[0024] Figure label:

[0025] 1. U-shaped screw; 2. Wire clamp fixing part; 21. Upper fixing sleeve; 22. Lower fixing sleeve; 23. First fixing component; 231. Wedge; 232. Fixing base; 24. Second fixing component; 241. Clamping block; 2411. U-shaped groove; 242. Pin; 243. Auxiliary clamping teeth; 2431. Limiting post; 244. Spring; 245. Limiting plate; 2451. Limiting hook groove; 246. Clamping plate; 247. Friction teeth; 3. Strip-shaped limiting hole; 4. Push plate; 5. Limiting bolt; 6. Rain cap; 7. Support lug; 8. Telescopic spring; 9. Compression spring. Detailed Implementation

[0026] The present invention will be further described in detail below with reference to the embodiments.

[0027] A device for easily installing power lines, such as Figures 1-4 As shown, it includes a U-shaped screw 1 and a wire clamp fixing part 2 passing through the U-shaped screw 1; the wire clamp fixing part 2 includes an upper fixing sleeve 21 and a lower fixing sleeve 22 arranged coaxially, and a first fixing component 23 is embedded in the upper fixing sleeve 21; the upper fixing sleeve 21 is axially penetrating inside, and the inner diameter of the upper fixing sleeve 21 gradually increases towards the lower fixing sleeve 22;

[0028] The first fixing component 23 is composed of a plurality of fan-shaped wedges 231. An annular fixing seat 232 is provided on the end of each wedge 231. The plurality of wedges 231 are arranged circumferentially along the fixing seat 232, such that the plurality of wedges 231 form a cone shape when fully engaged. The maximum outer diameter formed by the plurality of wedges 231 when fully engaged is greater than the maximum inner diameter of the upper fixing sleeve 21, and the minimum outer diameter formed by the plurality of wedges 231 when fully engaged is greater than the minimum inner diameter of the upper fixing sleeve 21.

[0029] The lower fixing sleeve 22 is internally fixed with a second fixing component 24. The power cable to be fixed passes through the first fixing component 23 and the second fixing component 24, and is tightened by the second fixing component 24. To enable the power cable to better drive the wedge to embed inward, the wedge 231 also has friction teeth 247 that protrude radially inward. The upper fixing sleeve 21 is inserted into the lower fixing sleeve 22. The upper fixing sleeve 21 has connecting posts that protrude radially outward and are symmetrically arranged on the upper fixing sleeve 21. The lower fixing sleeve 22 has corresponding through-holes. The connecting posts are engaged in the through-holes, so that the upper fixing sleeve 21 and the lower fixing sleeve 22 are connected as a whole to form the wire clamp fixing part 2. The upper fixing sleeve 21 and the lower fixing sleeve 22 are provided with lugs 7 on both sides in the width direction. The upper fixing sleeve 21 and the lower fixing sleeve 22 are passed through the lugs 7 on the U-shaped screw 1. A telescopic spring 8 is provided between the upper fixing sleeve 21 and the lower fixing sleeve 22. The telescopic spring 8 abuts against the two lugs 7.

[0030] When implementing, such as Figure 3 As shown, to facilitate the separation of the first fixing component from the upper fixing sleeve during cable disassembly, the wedge 231 has a through groove extending along its width on the end opposite to the fixing base 232. Multiple grooves are arranged in an annular groove along with the wedge 231, and a compression spring 9 is embedded within the annular groove. Thus, when the cable is disassembled, the tension that makes the wedge engage more tightly is lost, and the wedge will retract and reset under the elastic force of the compression spring, achieving the effect of easy disassembly.

[0031] When implementing, such as Figure 1 As shown, in order to prevent rainwater from entering the interior and corroding the first and second fixing components during rainy weather, the upper fixing sleeve 21 is provided with a rain cap 6 on the end opposite to the lower fixing sleeve 22.

[0032] First embodiment: as follows Figures 2-3 As shown, the second fixing component 24 includes two interlocking clamping blocks 241. Each clamping block 241 has a U-shaped groove 2411 extending through its length, forming a channel for the power cable to pass through when the two clamping blocks 241 are interlocked. Each clamping block 241 has a through-hole and symmetrically arranged pin hole, with a plurality of pin holes arranged along its length. A pin 242 is inserted into each pin hole, such that the pins are symmetrically distributed on both sides of the width direction of the U-shaped groove 2411 when inserted. An auxiliary clamping tooth 243 for assisting in fixing the power cable is sleeved on the pin 242. A spring 244 is connected between the end of the auxiliary clamping tooth 243 away from the pin 242 and the side wall of the U-shaped groove 2411.

[0033] like Figure 3As shown, the auxiliary clamping tooth 243 has a limiting post 2431 protruding along the direction of the pin 242 on one end opposite to the pin 242. A limiting plate 245 is provided between two adjacent limiting posts 2431 in the width direction. The limiting plate 245 has a protruding protrusion in the width direction and is inclined towards the upper fixing sleeve 21. A limiting groove 2451 is formed between the protrusion and the body of the limiting plate 245. The limiting plate 245 has an upwardly extending connecting rod. The lower fixing sleeve 22 and the clamping block 2 A strip-shaped limiting hole 3 is formed along the extension direction of the connecting rod, such that when the connecting rod moves to one end of the strip-shaped limiting hole 3, the bottom of the limiting hook groove 2451 abuts against the limiting post 2431; when the connecting rod moves to the other end of the strip-shaped limiting hole 3, the end of the protrusion abuts against the limiting post 2431; the end of the clamping block 241 opposite to the upper fixing sleeve 21 has a through threaded hole, and a limiting bolt 5 is fitted in the threaded hole. When the limiting bolt 5 is tightened, its end abuts against the connecting rod. A push plate 4 is fixedly provided on the connecting rod to facilitate the movement of the limiting plate 245.

[0034] Using the above structure, the upper and lower fixing sleeves are mounted on the U-shaped screw via lugs. The power cable passes through the rain cap, upper fixing sleeve, and lower fixing sleeve in sequence, without needing to bend the power cable beforehand. Once the power cable is in the appropriate position, the push plate is pushed, causing the limiting plate to move towards the upper fixing sleeve. This allows the limiting hook groove on the limiting plate to firmly lock the auxiliary clamping teeth, thereby achieving auxiliary clamping of the power cable passing between the two auxiliary clamping teeth. Since the tension of the power cable can cause the auxiliary clamping teeth to loosen to both sides, a limiting bolt is added to the clamping block to abut against the connecting rod of the limiting plate to further enhance the auxiliary clamping effect. The wedge of the first fixing component moves inward under the action of tension, and the wedge and the power cable... The wire is in an interference fit within the upper fixing sleeve. The greater the tension, the tighter the wedge embeds, achieving self-locking and securing the power wire. This eliminates the need for pre-bending the power wire during installation, allowing for easy fixing in a suitable position and increasing construction efficiency. Disassembly is simple: just unscrew the limiting screw, push the push plate to move the limiting plate to the other end of the strip-shaped limiting hole, loosen the limiting hook groove, and assist in releasing the clamping mechanism. Loosening the nut on the U-shaped screw allows the compression spring at one end of the wedge and the telescopic spring between the upper and lower fixing sleeves to move the wedge backward under elastic force, releasing the power wire and facilitating disassembly.

[0035] Second embodiment: as follows Figure 4As shown, the second fixing component 24 includes two interlocking clamping plates 246. Each clamping plate 246 has a through hole along its length. The through hole has friction teeth 247 that protrude radially inward, so that they are in an interference fit with the power cable placed in the through hole. The lower fixing sleeve 22 has threaded holes on both sides of the through hole in the width direction, and multiple threaded holes are provided along its length direction. Fixing bolts are screwed into the threaded holes, so that the two clamping plates 246 are fastened together in the lower fixing sleeve 22.

[0036] The second embodiment uses two clamps fixed with bolts to achieve interlocking and auxiliary fixation of the power cable. The fixing method of the first fixing component is the same as that of the first embodiment. Since the second embodiment requires the installation of multiple screws during installation and disassembly, the operation steps are more cumbersome. Therefore, the first embodiment is the best embodiment.

[0037] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements 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 fixing device for facilitating the installation of power cables, comprising a U-shaped screw (1) and a wire clamp fixing part (2) passing through the U-shaped screw (1); characterized in that, The wire clamp fixing part (2) includes an upper fixing sleeve (21) and a lower fixing sleeve (22) arranged coaxially. The upper fixing sleeve (21) is embedded with a first fixing component (23). The upper fixing sleeve (21) is axially penetrating inside, and the inner diameter of the upper fixing sleeve (21) gradually increases towards the lower fixing sleeve (22). The first fixing component (23) is composed of a plurality of fan-shaped wedges (231). An annular fixing seat (232) is provided on the end of each wedge (231). The plurality of wedges (231) are arranged circumferentially along the fixing seat (232) so that the plurality of wedges (231) form a cone shape when fully engaged. The maximum outer diameter formed by the plurality of wedges (231) when fully engaged is greater than the maximum inner diameter of the upper fixing sleeve (21), and the minimum outer diameter formed by the plurality of wedges (231) when fully engaged is greater than the minimum inner diameter of the upper fixing sleeve (21). The lower fixing sleeve (22) is fixedly provided with a second fixing component (24). The power cable that needs to be fixed is passed through the first fixing component (23) and the second fixing component (24) and is tightened by the second fixing component (24).

2. The fixing device for facilitating the installation of power lines as described in claim 1, characterized in that, The second fixing component (24) includes two interlocking clamps (241), each clamp (241) having a U-shaped groove (2411) extending through its length, such that when the two clamps (241) are interlocked, a channel for the power cable to pass through is formed; each clamp (241) has a through-hole and symmetrically arranged pin hole, and a plurality of pin holes are arranged along its length; a pin (242) is inserted into the pin hole, such that when the pin is inserted, it is symmetrically distributed on both sides of the width direction of the U-shaped groove (2411); an auxiliary clamping tooth (243) for assisting in fixing the power cable is sleeved on the pin (242), and a spring (244) is connected between the end of the auxiliary clamping tooth (243) away from the pin (242) and the side wall of the U-shaped groove (2411).

3. The fixing device for facilitating the installation of power lines as described in claim 2, characterized in that, The auxiliary clamping tooth (243) has a limiting post (2431) protruding along the direction of the pin (242) on one end away from the pin (242). A limiting plate (245) is provided between two adjacent limiting posts (2431) in the width direction. The limiting plate (245) has a protruding block in the width direction and is inclined towards the upper fixing sleeve (21). A limiting groove (2451) is formed between the protruding block and the body of the limiting plate (245). The limiting plate (245) has an upwardly extending connecting rod. The lower fixing sleeve (22) and the clamping block ( 241) A strip-shaped limiting hole (3) is formed through the extension direction of the connecting rod, so that when the connecting rod moves to one end of the strip-shaped limiting hole (3), the bottom of the limiting hook groove (2451) abuts against the limiting post (2431); when the connecting rod moves to the other end of the strip-shaped limiting hole (3), the end of the protrusion abuts against the limiting post (2431); the end of the clamping block (241) away from the upper fixing sleeve (21) has a threaded hole through it, and a limiting bolt (5) is fitted in the threaded hole. When the limiting bolt (5) is tightened, its end abuts against the connecting rod.

4. The fixing device for facilitating the installation of power lines as described in claim 3, characterized in that, A push plate (4) is fixedly installed on the connecting rod to facilitate the movement of the limiting plate (245).

5. The fixing device for facilitating the installation of power lines as described in claim 1, characterized in that, The second fixing component (24) includes two interlocking clamps (246), with through holes along the length of the clamps (246). The through holes have friction teeth (247) that protrude radially inward, so that they are in an interference fit with the power cable placed in the through holes. The lower fixing sleeve (22) has through threaded holes on both sides of the width of the through holes, and multiple threaded holes are provided along its length. Fixing bolts are screwed into the threaded holes so that the two clamps (246) are fastened in the lower fixing sleeve (22).

6. The fixing device for facilitating the installation of power lines as described in claim 1, characterized in that, The upper fixing sleeve (21) is inserted into the lower fixing sleeve (22). The upper fixing sleeve (21) has a connecting post that protrudes radially outward and is symmetrically arranged on the upper fixing sleeve (21). The lower fixing sleeve (22) is correspondingly provided with a through strip hole. The connecting post is engaged in the strip hole, so that the upper fixing sleeve (21) and the lower fixing sleeve (22) are connected as a whole to form the wire clamp fixing part (2).

7. The fixing device for facilitating the installation of power lines as described in claim 6, characterized in that, The upper fixing sleeve (21) and the lower fixing sleeve (22) are provided with lugs (7) on both sides in the width direction. The upper fixing sleeve (21) and the lower fixing sleeve (22) are passed through the lugs (7) on the U-shaped screw (1). A telescopic spring (8) is provided between the upper fixing sleeve (21) and the lower fixing sleeve (22). The telescopic spring (8) abuts against the two lugs (7).

8. The fixing device for facilitating the installation of power lines as described in claim 1, characterized in that, The wedge (231) has a groove extending through the width direction at one end away from the fixed base (232). Multiple grooves are arranged in annular grooves as the wedge (231) is arranged. A compression spring (9) is embedded in the annular groove.

9. The fixing device for facilitating the installation of power lines as described in claim 1, characterized in that, The upper fixing sleeve (21) is provided with a rain cap (6) on the end opposite to the lower fixing sleeve (22).

10. The fixing device for facilitating the installation of power lines as described in claim 1, characterized in that, The wedge (231) also has friction teeth (247) that protrude radially inward.

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