A puncture structure for a surge arrester

Abstract

The utility model provides a kind of puncture structure for lightning arrester, including clamping wire groove, the clamping wire groove is ladder block, the end face center of the big end of ladder block is away from small end is provided with first threaded blind hole, the big end end face of ladder block is provided with U-shaped groove, the opening width of U-shaped groove is less than the nominal diameter of first threaded blind hole, U-shaped groove penetrates first threaded blind hole, and the copper nail of the groove bottom installation spacing arrangement is arranged in U-shaped groove, the end face center of the small end of ladder block is away from big end is provided with discharge drainage ball.The utility model is installed in the groove bottom of U-shaped groove using copper nail, and clamping wire groove is rotatably installed on wire pressing part, and the end face of wire pressing part can be compressed tightly wire, and cooperate with copper nail below, form the puncture structure that wire is punctured, the distance between puncture structure and wire pressing part bottom is big, and the wire specification of being placed in clamping wire groove is big.

Description

Technical Field

[0001] This utility model relates to the technical field of surge arrester devices, and specifically to a puncture structure for surge arresters. Background Technology

[0002] Overhead insulated conductors are therefore widely used, but they are frequently struck by lightning. Most systems require piercing fittings on the insulated conductors to allow the discharge gap to discharge before the insulation layer is broken down during a lightning strike, thus protecting the conductor. However, existing technology has the following drawbacks: the nut is rotated and installed on the cable clamping groove, the piercing structure is installed on the nut, and the distance between the piercing structure and the bottom of the cable clamping groove is small, resulting in a small conductor size that can be placed in the groove.

[0003] Therefore, how to design a puncture structure for surge arresters has become an urgent problem to be solved. Utility Model Content

[0004] In view of the problems existing in the prior art, this utility model provides a puncture structure for surge arresters to solve at least one of the above-mentioned technical problems.

[0005] The technical solution of this utility model is: a puncture structure for a surge arrester, including a wire clamping groove, wherein the wire clamping groove is a stepped block, a first threaded blind hole is provided at the center of the end face of the larger end of the stepped block away from the smaller end, a U-shaped groove is provided at the end face of the larger end of the stepped block, the opening width of the U-shaped groove is smaller than the nominal diameter of the first threaded blind hole, the U-shaped groove penetrates through the first threaded blind hole, a wire pressing component is provided in the first threaded blind hole, copper nails arranged at intervals are installed at the bottom of the U-shaped groove, a discharge guiding ball is provided at the center of the end face of the smaller end of the stepped block away from the larger end; a wire is placed between the copper nails and the wire pressing component in the U-shaped groove.

[0006] This utility model uses copper nails installed at the bottom of a U-shaped groove, and a wire clamping component rotated and installed on the wire clamping groove. The end face of the wire clamping component can press the wire tightly and cooperate with the copper nail below to form a piercing structure for piercing the wire. The distance between the piercing structure and the bottom surface of the wire clamping component is large, and the wire specification placed in the wire clamping groove is large. This solves the technical defect of the prior art where the nut is rotated and installed on the wire clamping groove, the piercing structure is installed on the nut, and the distance between the piercing structure and the bottom of the wire clamping groove is small, resulting in the wire specification placed in the wire clamping groove. Attached Figure Description

[0007] Figure 1 This is a schematic diagram of the internal structure of this utility model.

[0008] Figure 2 This is a schematic diagram of the pressure wire component structure of this utility model.

[0009] Figure 3 This is a schematic diagram of the wire slot structure of this utility model.

[0010] Figure 4 for Figure 3 A bottom view.

[0011] Figure 5 for Figure 3 AA cross-section view.

[0012] Figure 6 This is a schematic diagram of the copper nail structure of this utility model.

[0013] In the diagram: 1. Wire clamping component; 2. Wire clamping groove; 3. Copper nail; 4. Screw; 5. Discharge drain ball; 101. Hexagonal section; 102. Threaded section; 103. Optical shaft section; 201. First thread blind hole; 202. U-groove; 203. Second thread blind hole; 204. Blind hole; 301. Knurled shaft section; 302. Arc section; 303. Conical section. Detailed Implementation

[0014] The present invention will be further described below with reference to the accompanying drawings.

[0015] See Figure 1-6 The structures, proportions, and sizes illustrated in the accompanying drawings are merely for illustrative purposes and to aid those skilled in the art. They are not intended to limit the scope of this invention and therefore lack substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, provided they do not affect the effectiveness or purpose of this invention, should still fall within the scope of the technical content disclosed herein. Furthermore, the terms "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.

[0016] Example 1: A puncture structure for a surge arrester, referenced Figure 1 , Figure 3 , Figure 4The device includes a wire clamping groove 2, which is a stepped block. A first threaded blind hole 201 is provided at the center of the end face of the stepped block away from the small end. A U-shaped groove 202 is provided at the end face of the stepped block away from the large end. The opening width of the U-shaped groove 202 is smaller than the nominal diameter of the first threaded blind hole 201. The U-shaped groove 202 passes through the first threaded blind hole 201. A wire pressing component 1 is provided in the first threaded blind hole 201. Copper nails 3 are installed at intervals at the bottom of the U-shaped groove 202. A discharge drain ball 5 is provided at the center of the end face of the stepped block away from the large end. A wire is placed between the copper nails 3 and the wire pressing component 1 in the U-shaped groove 202. This utility model uses copper nails installed at the bottom of a U-shaped groove, and a wire clamping component rotated and installed on the wire clamping groove. The end face of the wire clamping component can press the wire tightly and cooperate with the copper nail below to form a piercing structure for piercing the wire. The distance between the piercing structure and the bottom surface of the wire clamping component is large, and the wire specification placed in the wire clamping groove is large. This solves the technical defect of the prior art where the nut is rotated and installed on the wire clamping groove, the piercing structure is installed on the nut, and the distance between the piercing structure and the bottom of the wire clamping groove is small, resulting in the wire specification placed in the wire clamping groove.

[0017] Example 2: Based on Example 1, with reference to... Figure 5 The U-shaped groove 202 has blind holes 204 spaced apart at its center bottom, and copper nails 3 are installed in the blind holes 204. This invention uses blind holes at the center bottom of the U-shaped groove, with copper nails installed within them, to position and install the copper nails.

[0018] Example 3: Based on Example 2, with reference to... Figure 4 A second threaded blind hole 203 is provided at the center of the end face of the stepped block away from the large end. A screw 4 is installed in the second threaded blind hole 203, and the screw 4 installs the discharge guiding ball 5 on the wire clamping groove 2. This utility model uses a second threaded blind hole at the center of the end face of the stepped block away from the large end, and uses a screw to install the discharge guiding ball on the wire clamping groove, thereby installing and positioning the discharge guiding ball.

[0019] Example 4: Based on Example 2, with reference to... Figure 2 The wire pressing component 1 is a first three-section stepped shaft, which consists of a regular hexagonal section 101, a threaded section 102, and a smooth shaft section 103 from one end to the other. The threaded section 102 is the larger end of the first three-section stepped shaft, and the smooth shaft section 103 is located near the bottom of the U-shaped groove 202. This utility model uses a wire pressing component with a first three-section stepped shaft structure. The threaded section at the larger end of the first three-section stepped shaft engages with the first threaded blind hole; the regular hexagonal section can be used with a wrench to control the forward or backward movement of the wire pressing component; the smooth shaft section is located near the bottom of the U-shaped groove, and its end face can press the wire firmly and cooperate with the copper nail below to form a piercing structure for piercing the wire.

[0020] Example 5: Based on Example 2, with reference to... Figure 6 The copper nail 3 is a second and third stepped shaft, which consists of a knurled shaft section 301, an arc section 302, and a conical section 303 from one end to the other. The knurled shaft section 301 mates with the blind hole 204 and is the larger end of the second and third stepped shaft. The arc surface of the arc section 302 is close to the axis of the second and third stepped shaft. This invention uses a copper nail with a second and third stepped shaft structure. The knurled shaft section at the larger end of the second and third stepped shaft mates with the blind hole for installing and positioning the copper nail. The arc surface of the arc section is close to the axis of the second and third stepped shaft, facilitating the installation of the copper nail. The cone tip of the conical section mates with the end face of the upper wire clamping component and the lower copper nail to clamp the wire and form a piercing structure for piercing the wire.

[0021] In specific implementation, the material of the wire clamping part 1 is die-cast aluminum YL101; the material of the wire clamping groove 2 is aluminum profile 3103; the material of the copper nail 3 is brass H65-Y; the material of the screw 4 is brass H62, with specifications of GB / T73 M10×20; and the material of the discharge drain ball 5 is hard aluminum LY12.

[0022] The above-described embodiments are merely preferred embodiments of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.

Claims

1. A puncture structure for a surge arrester, comprising a wire-locking groove (2), characterized in that: The wire slot (2) is a stepped block. A first threaded blind hole (201) is provided at the center of the end face of the large end of the stepped block away from the small end. A U-shaped groove (202) is provided at the end face of the large end of the stepped block. The opening width of the U-shaped groove (202) is smaller than the nominal diameter of the first threaded blind hole (201). The U-shaped groove (202) passes through the first threaded blind hole (201). A wire pressing component (1) is provided in the first threaded blind hole (201). Copper nails (3) are installed at intervals at the bottom of the U-shaped groove (202). A discharge drain ball (5) is provided at the center of the end face of the small end of the stepped block away from the large end. A wire is placed between the copper nail (3) in the U-shaped groove (202) and the wire pressing component (1).

2. The puncture structure for a surge arrester according to claim 1, characterized in that: The bottom center of the U-shaped groove (202) is provided with blind holes (204) arranged at intervals, and copper nails (3) are installed in the blind holes (204).

3. The puncture structure for a surge arrester according to claim 2, characterized in that: The small end of the stepped block is provided with a second threaded blind hole (203) at the center of the end face away from the large end. A screw (4) is provided in the second threaded blind hole (203). The screw (4) installs the discharge drain ball (5) on the wire slot (2).

4. The puncture structure for a surge arrester according to claim 2, characterized in that: The pressure piece (1) is a first three-section stepped shaft. The first three-section stepped shaft consists of a regular hexagonal section (101), a threaded section (102), and a smooth shaft section (103) from one end to the other. The threaded section (102) is the large end of the first three-section stepped shaft, and the smooth shaft section (103) is located near the bottom of the U-shaped groove (202).

5. A puncture structure for a surge arrester according to claim 2, characterized in that: The copper nail (3) is the second and third stepped shaft. The second and third stepped shaft consists of a knurled shaft section (301), an arc section (302), and a conical section (303) from one end to the other. The knurled shaft section (301) is matched with the blind hole (204). The knurled shaft section (301) is the large end of the second and third stepped shaft. The arc surface of the arc section (302) is close to the axis of the second and third stepped shaft.

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