A ground down conductor connection device

Abstract

The utility model relates to a power transmission equipment technical field, concretely relates to a grounding down lead connecting device. Including connecting rod, the one side of connecting rod is fixedly provided with insulating baffle ring, is fixedly provided with insulating sleeve on the connecting rod of insulating baffle ring side, is fixedly provided with first contact piece on insulating sleeve, is slidably provided with second contact piece and insulating pad ring on insulating sleeve, is provided with the sleeve on connecting rod, and the left end of screw sleeve projects inwards and forms the convex ring, and the convex ring is screwed with connecting rod, and the screw sleeve part of convex ring right side is provided with on insulating sleeve, and the end face of first contact piece and second contact piece is all provided with a ring groove, and the ring groove is fixed with insulating pad sleeve, and two insulating pad sleeves are connected through spring, and spring is provided with on the outside of insulating sleeve. The utility model can realize the connection or disconnection of grounding down lead and tower body quickly through rotating screw sleeve combining lever and wrench, need not complex tool or disassembly component, and the on -the -spot operation efficiency is improved obviously.

Description

Technical Field

[0001] This utility model relates to the field of power transmission equipment technology, specifically to a grounding lead connection device. Background Technology

[0002] In the power transmission field, overhead lines are typically installed on poles and towers. A pole or tower usually consists of a tower body and a grounding down conductor electrically connected to the tower body. Traditionally, bolts and nuts are used to achieve this connection. Preliminary testing of overhead line grounding resistance generally uses a clamp meter method. During measurement, only one grounding down conductor remains electrically connected to the tower body; the remaining grounding down conductors should be disconnected. When disconnecting the grounding down conductor from the tower body, due to prolonged contact and corrosion, the connection point can easily become stuck together. Even after loosening the fastening devices, the connection point may not be effectively separated. Generally, the grounding down conductor is made of flat iron and connected to the grounding electrode. Because flat iron is elastic, even after loosening the fastening components, the flat iron will remain in contact with the tower body, requiring manual separation.

[0003] In the prior art, patent document CN209766695U discloses a tower and a connecting device for connecting the tower body and the grounding down conductor. In this technical solution, the first conductive piece and the second conductive piece can be quickly contacted or separated by the second locking member. However, the main technical problem solved by this technical solution is how to achieve the quick separation or connection of the first conductive piece and the second conductive piece. This technical solution does not solve the problem that the first conductive piece and the second conductive piece are inconvenient to separate due to corrosion, nor does it solve the problem of maintaining contact between the first conductive piece and the second conductive piece under the elastic action of the grounding down conductor. Utility Model Content

[0004] The main purpose of this utility model is to provide a grounding lead connection device that allows for easy separation of the first contact piece and the second contact piece, and ensures that the first contact piece and the second contact piece remain separated after the screw sleeve is loosened.

[0005] To achieve the above objectives, the technical solution provided by this utility model is as follows: A grounding lead connection device includes a connecting rod, an insulating retaining ring fixedly sleeved on one side of the connecting rod, an insulating sleeve fixedly sleeved on the connecting rod on the side of the insulating retaining ring, a first contact piece fixedly sleeved on the insulating sleeve, the first contact piece contacting the insulating retaining ring, a second contact piece and an insulating washer slidably sleeved on the insulating sleeve, the second contact piece being located between the insulating washer and the first contact piece, a threaded sleeve sleeved on the connecting rod, the insulating washer being located between the threaded sleeve and the second contact piece, the left end of the threaded sleeve protruding inward to form a convex ring, the convex ring being threadedly connected to the connecting rod, the right side of the threaded sleeve sleeved on the insulating sleeve, an annular groove being formed on the opposite end faces of the first contact piece and the second contact piece, an insulating washer being fixed in the annular groove, the two insulating washer sleeves being connected by a spring, the spring being sleeved on the outside of the insulating sleeve, the spring not contacting the first contact piece and the second contact piece.

[0006] Specifically, a first connecting piece is fixed to the outer edge of the first contact piece, and a second connecting piece is fixed to the outer edge of the second contact piece.

[0007] Specifically, a through hole is provided at the end of the connecting rod away from the threaded sleeve.

[0008] Specifically, the outer portion of the insulating pad is bent toward the groove opening to form an outer sleeve, and the spring end is located inside the outer sleeve on one side.

[0009] Specifically, a groove is formed on the end face of the second contact piece facing the first contact piece.

[0010] Specifically, the outer circumference of the threaded sleeve is provided with multiple planes.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. By rotating the screw sleeve in combination with the lever and wrench, the connection or disconnection of the grounding down conductor to the tower can be achieved quickly without complicated tools or disassembly of components, which significantly improves on-site operation efficiency and is especially suitable for working conditions with frequent measurements.

[0012] 2. The spring-assisted separation system ensures complete isolation between the first and second contact pieces when disconnected: The spring connects the first and second contact pieces through an insulating sleeve, and automatically springs the contact pieces apart when the screw sleeve retracts, avoiding the risk of residual current and ensuring measurement accuracy.

[0013] 3. The groove design enhances troubleshooting capabilities. When the contact pieces stick together due to corrosion, a flathead screwdriver can be inserted into the groove to easily apply pushing force to separate the contact pieces, simplifying maintenance and extending the device's lifespan.

[0014] 4. The multiple isolation design of the insulating sleeve, insulating retaining ring, and insulating washer ring ensures that the connecting rod does not conduct electricity with the contact piece. This effectively prevents short circuits, leakage, or accidental electric shock, improving operational safety, and is especially suitable for high-voltage environments.

[0015] 5. The design of the spring and the outer sleeve prevents the spring from shifting, and the circumferential plane design of the screw sleeve makes it easy for the wrench to hold, reducing operational wear and ensuring long-term stable operation. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the present invention.

[0017] Figure 2 This is a front view of the present invention.

[0018] Figure 3 for Figure 2 Sectional view along the AA direction.

[0019] The components in the attached diagram are named as follows: 1. Connecting rod, 2. Insulating retaining ring, 3. First contact piece, 4. First connecting piece, 5. Second contact piece, 6. Insulating washer ring, 7. Screw sleeve, 8. Flat surface, 9. Second connecting piece, 10. Spring, 11. Through hole, 12. Insulating sleeve, 13. Ring groove, 14. Insulating washer sleeve, 15. Groove. Detailed Implementation

[0020] 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.

[0021] Example 1: Refer to Figures 1-3 As shown, a grounding lead connection device includes a connecting rod 1, an insulating retaining ring 2 is fixedly sleeved on one side of the connecting rod 1, an insulating sleeve 12 is fixedly sleeved on the connecting rod 1 on one side of the insulating retaining ring 2, a first contact piece 3 is fixedly sleeved on the insulating sleeve 12, the first contact piece 3 contacts the insulating retaining ring 2, and a first connecting piece 4 is fixed on the outer edge of the first contact piece 3.

[0022] The insulating sleeve 12 is slidably fitted with a second contact piece 5 and an insulating washer 6, with the second contact piece 5 located between the insulating washer 6 and the first contact piece 3. A second connecting piece 9 is fixed to the outer edge of the second contact piece 5.

[0023] A threaded sleeve 7 is fitted onto the connecting rod 1, and multiple flat surfaces 8 are evenly distributed around the outer circumference of the threaded sleeve 7. An insulating washer ring 6 is located between the threaded sleeve 7 and the second contact piece 5.

[0024] The left end of the screw sleeve 7 protrudes inward to form a convex ring, which is threadedly connected to the connecting rod 1. The right side of the screw sleeve 7 is fitted onto the insulating sleeve 12.

[0025] A through hole 11 is provided at the end of the connecting rod 1 away from the screw sleeve 7.

[0026] An annular groove 13 is provided on the opposite end faces of the first contact piece 3 and the second contact piece 5. An insulating sleeve 14 is fixed in the annular groove 13. The two insulating sleeves 14 are connected by a spring 10. The spring 10 is sleeved on the outside of the insulating sleeve 12 and does not contact the first contact piece 3 and the second contact piece 5.

[0027] The outer part of the insulating sleeve 14 is bent toward the groove of the annular groove 13 to form an outer sleeve, and the end of the spring 10 is located inside the outer sleeve on one side.

[0028] When the grounding down conductor is connected to the tower body, the grounding down conductor is electrically connected to the first contact piece 3 through the first connecting piece 4, and the second contact piece 5 is connected to the tower body through the second connecting piece 9. Then, one end of the lever is passed through the through hole 11, and the screw sleeve 7 is held by the wrench. The screw sleeve 7 is rotated, and the screw sleeve 7 squeezes the second contact piece 5 through the insulating washer ring 6. The first contact piece 3 and the second contact piece 5 are brought closer together, and the spring 10 is compressed. When the first contact piece 3 and the second contact piece 5 are in contact, the tower body and the grounding down conductor are electrically connected. An insulating sleeve 12 is provided between the first contact piece 3 and the second contact piece 5 and the connecting rod 1. Therefore, the connecting rod 1 is not electrically connected to the first contact piece 3 and the second contact piece 5.

[0029] During the grounding resistance measurement process, when it is necessary to separate the first contact piece 3 from the second contact piece 5, one end of the lever is passed through the through hole 11, and the screw sleeve 7 is held by the wrench. The screw sleeve 7 is rotated so that it moves away from the first contact piece 3. During the process of the screw sleeve 7 moving away from the first contact piece 3, the first contact piece 3 and the second contact piece 5 are separated under the elastic force of the spring 10. After the first contact piece 3 and the second contact piece 5 are separated, the first contact piece 3 and the second contact piece 5 can remain separated under the elastic force of the spring 10.

[0030] Since the two ends of the spring 10 are connected to the first contact piece 3 and the second contact piece 5 respectively through two insulating sleeves 14, and the spring 10 does not contact the first contact piece 3 and the second contact piece 5, the first contact piece 3 and the second contact piece 5 can be completely separated after the screw sleeve 7 rotates and moves away from the first contact piece 3.

[0031] Example 2: Based on Example 1, referring to... Figure 2 and Figure 3 As shown, a groove 15 is provided on the end face of the second contact piece 5 facing the first contact piece 3.

[0032] When the first contact piece 3 and the second contact piece 5 become stuck together due to corrosion, the screw sleeve 7 rotates and connects with the first contact piece 3. Then, the working end of a flat-head screwdriver is inserted into the groove 15, and the screwdriver rotates. The working end of the screwdriver applies a pushing force to the first contact piece 3 and the second contact piece 5 respectively, thereby separating them. The groove 15 facilitates the separation of the first contact piece 3 and the second contact piece 5 using a flat-head screwdriver.

[0033] 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 grounding lead connection device, comprising a connecting rod (1), an insulating retaining ring (2) fixedly sleeved on one side of the connecting rod (1), and an insulating sleeve (12) fixedly sleeved on the connecting rod (1) on one side of the insulating retaining ring (2), characterized in that, A first contact piece (3) is fixedly sleeved on the insulating sleeve (12), and the first contact piece (3) contacts the insulating retaining ring (2). A second contact piece (5) and an insulating washer (6) are slidably sleeved on the insulating sleeve (12), and the second contact piece (5) is located between the insulating washer (6) and the first contact piece (3). A threaded sleeve (7) is sleeved on the connecting rod (1), and the insulating washer (6) is located between the threaded sleeve (7) and the second contact piece (5). The left end of the threaded sleeve (7) protrudes inward to form a convex ring. The ring is threaded to the connecting rod (1). The threaded sleeve (7) on the right side of the convex ring is fitted onto the insulating sleeve (12). A ring groove (13) is opened on the opposite end face of the first contact piece (3) and the second contact piece (5). An insulating pad (14) is fixed in the ring groove (13). The two insulating pads (14) are connected by a spring (10). The spring (10) is fitted on the outside of the insulating sleeve (12). The spring (10) does not contact the first contact piece (3) and the second contact piece (5).

2. The grounding lead connection device according to claim 1, characterized in that, The first contact piece (3) has a first connecting piece (4) fixed on its outer edge, and the second contact piece (5) has a second connecting piece (9) fixed on its outer edge.

3. The grounding lead connection device according to claim 1, characterized in that, The connecting rod (1) has a through hole (11) at the end away from the screw sleeve (7).

4. The grounding lead connection device according to claim 1, characterized in that, The outer part of the insulating pad (14) is bent toward the groove of the annular groove (13) to form an outer sleeve, and the end of the spring (10) is located inside the outer sleeve on one side.

5. The grounding lead connection device according to claim 1, characterized in that, The second contact piece (5) has a groove (15) on its end face facing the first contact piece (3).

6. The grounding lead connection device according to claim 1, characterized in that, The outer circumference of the threaded sleeve (7) is provided with multiple planes (8).

Images