An accessory fitting for an aluminium alloy cable

Abstract

The utility model discloses an accessory fitting for aluminum alloy cable, bottom line clamp top end installs wire clamping installation subassembly, and bottom line clamp bottom end is equipped with hexagonal groove, and the inside activity of screw rod hole is equipped with connecting screw rod, and the top end of connecting screw rod is in the top line clamp top end position place and is equipped with the screw bushing of thread sleeve joint, and the opposite side of two closed boxes is inlayed with sealing film, and the outside of limiting block is evenly equipped with pin hole, and the top of closed box is equipped with sealing hole in the corresponding pin, and the bottom line clamp and top line clamp are equipped with sealing wire fixing assembly, the utility model discloses, and the wrench is not needed in clamping process, and the extrusion fixed operation can be completed manually, and the fixed operation is simpler, and the connecting screw rod is closed by two closed boxes, and does not directly contact with outside air, thereby avoiding the problem of poor contact caused by the loosening of the wiring caused by the corrosion of the connecting screw rod and the screw bushing, and the aluminum alloy connection effect is better.

Description

Technical Field

[0001] This utility model relates to the field of power fittings technology, specifically to an accessory fitting for aluminum alloy cables. Background Technology

[0002] Electrical fittings are iron or aluminum metal accessories widely used in power transmission lines. There are many types of fittings with different uses. For example, there are various wire clamps for installing conductors, various hanging rings for forming insulator strings, various crimping tubes and repair tubes for connecting conductors, various types of spacers on split conductors, etc. In addition, there are various guy wire fittings for poles and towers, as well as fittings for protecting conductors of different sizes, which must be matched with each other.

[0003] However, the wire clamps currently used for installing aluminum alloy cables on the market require two or more bolts to be tightened with a wrench to complete the installation process. After installation, the bolts are exposed and are prone to corrosion and loosening of the nuts, which can lead to loose connections and poor contact. Utility Model Content

[0004] This utility model provides an accessory fitting for aluminum alloy cables, which can effectively solve the problems mentioned in the background art. During the installation of aluminum alloy cables, the wire clamps need to be tightened with a wrench to complete the fixation. After installation, the bolts are exposed and are prone to corrosion, and the nuts are loose, which leads to loose connections and poor contact.

[0005] To achieve the above objectives, this utility model provides the following technical solution: it includes a bottom wire clamp, and a wire clamping installation assembly is installed at the top of the bottom wire clamp. The wire clamping installation assembly includes a top wire clamp, a hexagonal groove, a screw hole, a connecting screw, a screw sleeve, a sealing box, a sealing film, a limiting block, a pin hole, a pin, a guide rod, a guide hole, and a sealing hole.

[0006] The bottom clamp is fitted with a top clamp, and the bottom clamp has a hexagonal groove. A screw hole is formed inside the hexagonal groove. A connecting screw is movably installed inside the screw hole. The top of the connecting screw movably passes through the top clamp, and a screw sleeve is threadedly connected to the top of the top clamp at the top position of the connecting screw.

[0007] The top surface of the threaded sleeve is symmetrically hinged with a closed box, and the opposite sides of the two closed boxes are inlaid with sealing film. The top of the connecting screw is welded with a limit block, and pin holes are evenly opened on the outer side of the limit block. The top of the two closed boxes are through-installed with pins, and the top of the closed boxes is opened with sealing holes corresponding to the pins.

[0008] According to the above technical solution, the top surface of the bottom clamp is symmetrically welded with a guide rod, and the top clamp is provided with a guide hole corresponding to the guide rod.

[0009] According to the above technical solution, a semi-circular groove is provided inside the closed box, and the diameter of the connecting screw is equal to the diameter of the semi-circular groove.

[0010] According to the above technical solution, one end of the pin has a wire hole, the pin hole is an elongated hole with rounded ends, and the width of the pin hole is equal to the diameter of the pin.

[0011] According to the above technical solution, a sealing and fixing assembly is installed between the bottom clamp and the top clamp. The sealing and fixing assembly includes a clamping groove, a fixing spike, a sealing groove, a flexible sealing end strip, a protective plastic film, and a sealing edge strip.

[0012] The bottom clamp and top clamp are symmetrically provided with clamping grooves facing each other. Fixing spikes are uniformly welded inside the clamping grooves. Sealing grooves are provided at both ends of the bottom clamp and top clamp near the clamping grooves. Flexible sealing end strips are embedded inside the sealing grooves. A protective plastic film is adhered to one side of the flexible sealing end strips. The two flexible sealing end strips at the same height are respectively connected to the two ends of the sealing edge strip at the same end.

[0013] According to the above technical solution, the edge of the flexible sealing end strip extends beyond the inner edge of the clamping groove, and the shape of the opposite edge of the bottom clamp and the top clamp is the same as the shape of the flexible sealing end strip.

[0014] Compared with the prior art, the advantages of this utility model are: the structure of this utility model is scientific and reasonable, and it is safe and convenient to use;

[0015] 1. It is equipped with a wire clamping installation component. The connecting screw passes through the screw hole. Rotating the closed box drives the screw sleeve to rotate. The screw sleeve squeezes the top wire clamp close to the bottom wire clamp, clamping and fixing the internal cable. At this time, the sealing hole is close to the pin hole. The clamping process does not require a wrench. The squeezing and fixing operation can be completed manually, making the fixing operation simpler.

[0016] Then, rotate the sealing box, and the sealing films of the two sealing boxes press against each other and come closer together. The sealing box and the connecting screw are fixed by the pin. The connecting screw and the threaded sleeve will not rotate relative to each other and cause the connection to loosen. Moreover, the connecting screw is sealed by the two sealing boxes and does not come into direct contact with the outside air. This avoids the problem of poor contact caused by the loosening of the wiring due to the corrosion of the connecting screw and the threaded sleeve. The aluminum alloy connection effect is better.

[0017] 2. A sealing and fixing assembly is provided. The fixing spikes are inserted into the outside of the aluminum alloy cable to fix it and increase the contact area, thereby improving the conductivity. During the clamping process, the flexible sealing end strip and sealing edge strip are squeezed and deformed to seal the gap between the bottom clamp, top clamp and cable, preventing rainwater, dust and other substances from seeping into the gap at the connection and ensuring the connection effect. Attached Figure Description

[0018] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0019] In the attached diagram:

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the wire clamping mounting assembly of this utility model;

[0022] Figure 3 This is a schematic diagram of the installation structure of the enclosed box of this utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the sealing and fixing assembly of this utility model;

[0024] Numbered in the diagram: 1. Bottom clamp;

[0025] 2. Wire clamp mounting assembly; 201. Top wire clamp; 202. Hexagonal groove; 203. Screw hole; 204. Connecting screw; 205. Screw sleeve; 206. Enclosure box; 207. Sealing film; 208. Limiting block; 209. Pin hole; 210. Pin; 211. Guide rod; 212. Guide hole; 213. Sealing hole;

[0026] 3. Sealing and fixing wire assembly; 301. Wire clamping groove; 302. Fixing spike; 303. Sealing groove; 304. Flexible sealing end strip; 305. Protective plastic film; 306. Sealing edge strip. Detailed Implementation

[0027] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0028] Example: Figure 1-4 As shown, this utility model provides a technical solution for accessory hardware for aluminum alloy cables, including a bottom wire clamp 1, and a wire clamping installation component 2 installed at the top of the bottom wire clamp 1. The wire clamping installation component 2 includes a top wire clamp 201, a hexagonal groove 202, a screw hole 203, a connecting screw 204, a screw sleeve 205, a sealing box 206, a sealing film 207, a limiting block 208, a pin hole 209, a pin 210, a guide rod 211, a guide hole 212, and a sealing hole 213.

[0029] A top wire clamp 201 is installed at the top of the bottom wire clamp 1. A guide rod 211 is symmetrically welded to the top surface of the bottom wire clamp 1. A guide hole 212 is opened at the top wire clamp 201 corresponding to the guide rod 211 to prevent the bottom wire clamp 1 and the top wire clamp 201 from rotating relative to each other during the clamping process. A hexagonal groove 202 is opened at the bottom end of the bottom wire clamp 1. A screw hole 203 is opened inside the hexagonal groove 202. A connecting screw 204 is movably installed inside the screw hole 203. The top end of the connecting screw 204 movably passes through the top wire clamp 201. A screw sleeve 205 is threadedly connected to the top end of the connecting screw 204 at the top end position of the top wire clamp 201.

[0030] The top surface of the threaded sleeve 205 is symmetrically hinged with a closed box 206. The closed box 206 has a semi-circular groove inside. The diameter of the connecting screw 204 is equal to the diameter of the semi-circular groove, so that the connecting screw 204 can be closed and protected by the closed box 206. The opposite sides of the two closed boxes 206 are inlaid with sealing film 207. The top of the connecting screw 204 is welded with a limiting block 208. The outer side of the limiting block 208 is evenly provided with pin holes 209. The top of the two closed boxes 206 are through-mounted with pins 210. One end of the pin 210 is provided with a wire hole. The pin hole 209 is an elongated hole with rounded ends. The width of the pin hole 209 is equal to the diameter of the pin 210, so that the pin 210 can pass through the pin hole 209 for limiting and fixing. The top of the closed box 206 is provided with a sealing hole 213 corresponding to the pin 210.

[0031] A sealing and securing assembly 3 is installed between the bottom clamp 1 and the top clamp 201. The sealing and securing assembly 3 includes a clamping groove 301, a fixing spike 302, a sealing groove 303, a flexible sealing end strip 304, a protective plastic film 305, and a sealing edge strip 306.

[0032] The bottom clamp 1 and the top clamp 201 are symmetrically provided with clamping grooves 301 facing each other. The clamping grooves 301 are uniformly welded with fixing spikes 302. Both ends of the bottom clamp 1 and the top clamp 201 are provided with sealing grooves 303 near the clamping grooves 301. Flexible sealing end strips 304 are embedded in the sealing grooves 303. The edge of the flexible sealing end strip 304 extends beyond the inner edge of the clamping groove 301. The shape of the opposite edge of the bottom clamp 1 and the top clamp 201 is the same as the shape of the flexible sealing end strip 304, so that the flexible sealing end strip 304 can seal the gap at the connection between the cable and the clamping groove 301. A protective plastic film 305 is adhered to one side of the flexible sealing end strip 304. The two flexible sealing end strips 304 at the same height are respectively connected to the two ends of the sealing edge strip 306.

[0033] The working principle and usage process of this utility model are as follows: When it is necessary to split or reconnect aluminum alloy cables, the insulation layer of the cable at the clamping position of the bottom clamp 1 and the top clamp 201 is stripped, the screw sleeve 205 is loosened, and the clamping groove 301 of the bottom clamp 1 and the top clamp 201 is clamped at the exposed aluminum alloy cable. During the clamping process, the fixing spike 302 is inserted into the outside of the aluminum alloy cable to fix it and increase the contact area, thereby improving the conductivity. During the clamping process, the flexible sealing end strip 304 and the sealing edge strip 306 are squeezed and deformed to seal the gap between the bottom clamp 1, the top clamp 201 and the cable, preventing rainwater, dust and other substances from seeping into the gap at the connection and ensuring the connection effect.

[0034] When it is necessary to clamp and fix the bottom clamp 1 and the top clamp 201, the connecting screw 204 passes through the screw hole 203 and the end of the connecting screw 204 is embedded in the hexagonal groove 202 for fixation. The screw sleeve 205 is threaded onto the end of the connecting screw 204. Then, the sealing box 206 is rotated so that the two sealing boxes 206 are on the same straight line. Then, the sealing box 206 is rotated, which drives the screw sleeve 205 to rotate. The screw sleeve 205 presses the top clamp 201 closer to the bottom clamp 1. The guide rod 211 slides in the guide hole 212 to prevent the bottom clamp 1 and the top clamp 201 from rotating relative to each other, clamping and fixing the internal cable. At this time, the sealing hole 213 is close to the pin hole 209. The clamping process does not require a wrench and the pressing and fixing operation can be completed manually, making the fixing operation simpler.

[0035] Subsequently, rotating the sealing box 206 causes the sealing films 207 of the two sealing boxes 206 to press against each other and approach. The pin 210 passes through the sealing hole 213 and through the pin hole 209. One end of the pin hole 209 is threaded with an iron wire to prevent the pin 210 from falling out. The sealing box 206 and the connecting screw 204 are fixed by the pin 210. The connecting screw 204 and the threaded sleeve 205 will not rotate relative to each other, which would cause the connection to loosen. Moreover, the connecting screw 204 is sealed by the two sealing boxes 206 and does not come into direct contact with the outside air. This avoids the problem of poor contact caused by the loosening of the wiring due to the corrosion of the connecting screw 204 and the threaded sleeve 205. The aluminum alloy connection effect is better.

[0036] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the 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 this utility model should be included within the protection scope of this utility model.

Claims

1. An accessory fitting for aluminum alloy cables, comprising a bottom clamp (1), characterized in that: The top of the bottom clamp (1) is equipped with a wire clamping installation assembly (2), which includes a top wire clamp (201), a hexagonal groove (202), a screw hole (203), a connecting screw (204), a screw sleeve (205), a sealing box (206), a sealing film (207), a limiting block (208), a pin hole (209), a pin (210), a guide rod (211), a guide hole (212), and a sealing hole (213). The bottom clamp (1) is equipped with a top clamp (201) at its top end. The bottom clamp (1) has a hexagonal groove (202) at its bottom end. A screw hole (203) is provided inside the hexagonal groove (202). A connecting screw (204) is movably installed inside the screw hole (203). The top end of the connecting screw (204) movably passes through the top clamp (201). A screw sleeve (205) is threadedly connected to the top end of the connecting screw (204) at the top end of the top clamp (201). The top surface of the threaded sleeve (205) is symmetrically hinged with a closed box (206). The two closed boxes (206) are inlaid with sealing films (207) on opposite sides. The top of the connecting screw (204) is welded with a limiting block (208). The outer side of the limiting block (208) is evenly provided with pin holes (209). The top of the two closed boxes (206) is through-installed with pins (210). The top of the closed box (206) is provided with a sealing hole (213) corresponding to the pin (210).

2. The accessory fitting for aluminum alloy cables according to claim 1, characterized in that, The bottom clamp (1) has a guide rod (211) symmetrically welded on its top surface, and the top clamp (201) has a guide hole (212) corresponding to the guide rod (211).

3. The accessory fitting for aluminum alloy cables according to claim 1, characterized in that, The enclosed box (206) has a semi-circular groove inside, and the diameter of the connecting screw (204) is equal to the diameter of the semi-circular groove.

4. The accessory fitting for aluminum alloy cables according to claim 1, characterized in that, The pin (210) has a wire hole at one end, and the pin hole (209) is an elongated hole with rounded ends. The width of the pin hole (209) is equal to the diameter of the pin (210).

5. The accessory fitting for aluminum alloy cables according to claim 1, characterized in that, A sealing and fixing assembly (3) is installed between the bottom clamp (1) and the top clamp (201). The sealing and fixing assembly (3) includes a clamping groove (301), a fixing spike (302), a sealing groove (303), a flexible sealing end strip (304), a protective plastic film (305), and a sealing edge strip (306). The bottom clamp (1) and top clamp (201) are symmetrically provided with clamping grooves (301) facing each other. Fixing spikes (302) are uniformly welded inside the clamping grooves (301). Sealing grooves (303) are provided at both ends of the bottom clamp (1) and top clamp (201) near the clamping grooves (301). Flexible sealing end strips (304) are embedded inside the sealing grooves (303). A protective plastic film (305) is adhered to one side of the flexible sealing end strips (304). The two flexible sealing end strips (304) at the same height are respectively connected to the two ends of the sealing edge strip (306) at the same end.

6. The accessory fitting for aluminum alloy cables according to claim 5, characterized in that, The edge of the flexible sealing end strip (304) extends beyond the inner edge of the clamping groove (301), and the shape of the opposite edge of the bottom clamp (1) and the top clamp (201) is the same as that of the flexible sealing end strip (304).

Images