Self-locking type grounding drainage annular wire clamp for mounting grounding drainage wire of transformer substation
By introducing blind holes and temperature-sensing rods into the ring clamp, the problem of excessive temperature caused by poor contact of the grounding wire or conductor is solved, enabling timely detection of abnormalities, improving maintenance efficiency, and eliminating safety hazards.
Patent Information
- Application Number
- CN202520496451.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-20
- Publication Date
- 2026-02-13
- Estimated Expiration
- 2035-03-20
AI Technical Summary
In existing technologies, poor contact of the grounding wire or conductor during use of the ring clamp can lead to excessively high temperatures, which maintenance personnel cannot detect in time, affecting maintenance efficiency and posing safety hazards.
Design a self-locking grounding current-draining ring clamp, which includes a temperature-sensing rod and a connecting wire connected by a spring in a blind hole set in the clamp body. When the conductor or grounding wire has poor contact, the connecting wire breaks due to heat, and the spring pushes the temperature-sensing rod out of the blind hole to provide an early warning.
It enables timely detection of abnormalities in grounding wires or conductors, improves the efficiency of maintenance work, and eliminates safety hazards.
Smart Images
Figure CN223911875U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a wire clamp technical field, specifically speaking, a self-locking grounding drainage ring clamp for grounding drainage wire mounting of transformer substation. BACKGROUND
[0002] With the rapid development of economic society and the improvement of power supply reliability requirement of industrial and commercial and resident users, uninterrupted operation has become an important maintenance method for improving the economic benefit and service quality of power grid. At present, the most safe and convenient method is to use the ring clamp to guide the wire.
[0003] With the passage of time, the grounding wire or the wire on the ring clamp is not in good contact, and the temperature is too high. The maintenance personnel cannot find the abnormal situation of the grounding wire or the wire in time, which not only affects the efficiency of the maintenance work, but also brings safety hazards. UTILITY MODEL CONTENTS
[0004] In order to solve the problem that the maintenance personnel cannot find the abnormal situation of the grounding wire or the wire in time in the prior art, the utility model provides a self-locking grounding drainage ring clamp for grounding drainage wire mounting of transformer substation, which is convenient for the maintenance personnel to find the abnormal situation of the grounding wire or the wire in time, is beneficial to improve the efficiency of the maintenance work, and eliminates the safety hazards.
[0005] In order to achieve the above purpose, the utility model adopts the specific scheme that a self-locking grounding drainage ring clamp for grounding drainage wire mounting of transformer substation, including the wire clamp body, the both sides of the wire clamp body are respectively provided with the grounding ring and the wire slot with the opening, the top outer side of the wire slot is provided with the accommodating groove, the top end of the wire clamp chuck is rotationally arranged in the accommodating groove, and the torsional spring for pushing the bottom end of the wire clamp chuck to be located outside the wire slot is arranged between the wire clamp chuck and the accommodating groove, the wire slot wall lower end is provided with the lifting ring bolt, the top end of the lifting ring bolt extends into the wire slot and is provided with the pressing plate, in the upward movement process of the lifting ring bolt, the wire above the pressing plate pushes the wire clamp chuck to rotate to the opening of the wire slot blocked by the wire clamp chuck, the bottom of the wire clamp body is provided with the blind hole, the bottom of the blind hole is provided with the connecting wire for limiting the temperature sensing rod in the blind hole, the spring is arranged between the end of the temperature sensing rod and the bottom of the blind hole, and after the connecting wire is broken by heat, the spring pushes the temperature sensing rod to extend out of the blind hole.
[0006] As one optimization scheme of the above-mentioned self-locking grounding drainage ring clamp for grounding drainage wire mounting of transformer substation, one end of the temperature sensing rod extending into the blind hole is provided with the baffle, the opening of the blind hole is provided with the limiting ring, and the baffle and the limiting ring cooperate to limit the limit displacement of the temperature sensing rod.
[0007] As another optimization scheme of the above-mentioned self-locking grounding drainage ring clamp for grounding drainage wire mounting of transformer substation, one end of the temperature sensing rod facing the opening of the blind hole is provided with the early warning indicator.
[0008] As another optimization scheme of the self-locking grounding current-carrying ring clamp for mounting grounding current-carrying lines in a transformer substation, a through hole is formed in the bottom end of the wire slot for the lifting ring bolt to pass through; and an inner thread is arranged on the inner side wall of the through hole and matched with the outer thread of the lifting ring bolt.
[0009] As another optimization scheme of the self-locking grounding current-carrying ring clamp for mounting grounding current-carrying lines in a transformer substation, one end of the spring is fixedly connected with the blocking piece, and the other end is fixedly connected with the bottom of the blind hole.
[0010] As another optimization scheme of the self-locking grounding current-carrying ring clamp for mounting grounding current-carrying lines in a transformer substation, one end of the spring is fixedly connected with the blocking piece, and the other end is fixedly connected with the bottom of the blind hole.
[0011] As another optimization scheme of the self-locking grounding current-carrying ring clamp for mounting grounding current-carrying lines in a transformer substation, the end face of the pressing plate away from the lifting ring bolt is an arc-shaped face concave upward.
[0012] As another optimization scheme of the self-locking grounding current-carrying ring clamp for mounting grounding current-carrying lines in a transformer substation, the grounding ring is rotationally connected with the clamp body.
[0013] As another optimization scheme of the self-locking grounding current-carrying ring clamp for mounting grounding current-carrying lines in a transformer substation, the connecting line is made of low-density polyethylene.
[0014] Compared with the prior art, the self-locking grounding current-carrying ring clamp for mounting grounding current-carrying lines in a transformer substation has the following beneficial effects:
[0015] 1) The self-locking grounding current-carrying ring clamp for mounting grounding current-carrying lines in a transformer substation is provided with a blind hole in the clamp body, a temperature sampling rod is arranged in the blind hole, a spring is arranged between the temperature sampling rod and the bottom of the blind hole, a connecting line is arranged in the spring, and the connecting line connects the temperature sampling rod and the bottom of the blind hole. When the temperature of the conductor or grounding wire is abnormally increased due to poor contact, the connecting line is broken by heat, the restoring force of the spring pushes one end of the temperature sampling rod to extend out of the blind hole, so that the maintenance personnel can be timely found, and the efficiency of maintenance work is improved.
[0016] 2) In the self-locking grounding current-carrying ring clamp for mounting grounding current-carrying lines in a transformer substation, one end of the temperature sampling rod extending into the blind hole is provided with a blocking piece, and a limiting ring is arranged at the opening of the blind hole to prevent the temperature sampling rod from being separated from the clamp body.
[0017] 3) In the self-locking grounding current-carrying ring clamp for mounting grounding current-carrying lines in a transformer substation, the upper end face of the pressing plate is an arc-shaped face concave upward, which is beneficial to increase the contact area with the conductor. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1is a structure diagram of the wire clamp early warning indicator not alarming;
[0019] Figure 2 is a structure diagram of the wire clamp early warning indicator alarming;
[0020] Figure 3 is a side view of the wire clamp;
[0021] Figure 4 is a partial sectional view of the early warning indicator not alarming;
[0022] Figure 5 is a partial sectional view of the early warning indicator alarming;
[0023] Reference signs: 1, wire slot, 2, grounding ring, 3, opening, 4, lifting eye bolt, 5, pressing plate, 6, accommodating groove, 7, through hole, 8, wire clamp chuck, 9, torsional spring, 10, blind hole, 11, temperature sensing rod, 12, connecting wire, 13, spring, 14, early warning indicator, 15, baffle, 16, limiting ring. DETAILED DESCRIPTION
[0024] The technical scheme of the utility model will be further described in detail below in combination with specific embodiments, and parts not described and disclosed in the following embodiments of the utility model should be understood as existing technology known or should be known by those skilled in the art.
[0025] Embodiment 1
[0026] As shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 A self-locking grounding and drainage ring-shaped wire clamp for mounting a grounding and drainage wire of a transformer substation includes a wire clamp body, grounding rings 2 provided on both sides of the wire clamp body for the grounding wire to pass through, and wire slots 1 with openings 3, the wire slots 1 are in a "C" type structure, and the wire slots 1 are for the conductive wire to pass through; accommodating grooves 6 are formed on the top outer side of the wire slots 1, and the accommodating grooves 6 are located at the middle position of the top outer side of the wire slots 1. The grounding rings 2 are rotationally connected with the wire clamp body, specifically, mounting shafts are fixedly arranged on the bottom of the side of the wire clamp body away from the openings 3, the grounding rings 2 are rotationally connected with the mounting shafts, and the grounding rings 2 can rotate along the mounting shafts.
[0027] The top end of the wire clamp chuck 8 is rotationally arranged in the accommodating groove 6, in the utility model, the wire clamp chuck 8 includes integrally connected first part and second part, the first part and the second part are located at the both sides of the connecting shaft, the splicing place of the first part and the second part is provided with connecting hole, the accommodating groove 6 is fixedly provided with the connecting shaft, the connecting shaft passes through the connecting hole to make the wire clamp chuck 8 and the connecting shaft rotationally connected;The wire clamp chuck 8 and the accommodating groove 6 are provided with torsion spring 9 for pushing the bottom end of wire clamp chuck 8 to be located outside the wire slot 1, one end of torsion spring 9 is fixedly connected with the inner side wall of accommodating groove 6, and the other end is fixedly connected with wire clamp chuck 8.
[0028] The lower end of the groove wall of the wire slot 1 is provided with a lifting ring bolt 4, and the bottom end of the wire slot 1 is provided with a through hole 7 for the lifting ring bolt 4 to pass through. An inner thread is arranged on the inner side wall of the through hole 7 to match the outer thread of the lifting ring bolt 4. The top end of the lifting ring bolt 4 extends into the wire slot 1 and is provided with a pressing plate 5. The pressing plate 5 is rotationally connected with the lifting ring bolt 4. The end face of the pressing plate 5, which is away from the lifting ring bolt 4, is an arc face concave upward to increase the contact area with the wire. During the upward movement of the lifting ring bolt 4, the wire above the pressing plate 5 pushes the wire clamp chuck 8 to rotate to the opening 3 of the wire slot 1, so that the wire cannot be separated from the annular wire clamp.
[0029] When the wire does not enter the wire slot 1, the bottom end of the wire clamp chuck 8 is located outside the wire slot 1, that is, the second part of the wire clamp chuck 8 is located outside the wire slot 1, and the first part of the wire clamp chuck 8 extends into the wire slot 1. When the wire enters the wire slot 1 and is placed on the pressing plate 5, rotating the lifting ring bolt 4 pushes the pressing plate 5 to move upward, which drives the wire to move upward. As the wire moves upward, the wire contacts the first part and pushes the first part to rotate, which in turn drives the second part to rotate towards the opening until the wire clamp chuck 8 blocks the opening 3.
[0030] A blind hole 10 is formed in the bottom of the wire clamp body and extends along the length direction of the pressing plate 5. A connecting wire 12 is arranged in the blind hole 10 to limit the temperature sensing rod 11 in the blind hole 10. The material of the connecting wire 12 is low-density polyethylene. One end of the connecting wire 12 is fixedly connected with the stop sheet 15, and the other end is fixedly connected with the bottom of the blind hole 10. A spring 13 is arranged between the end of the temperature sensing rod 11 and the bottom of the blind hole 10. The spring 13 is in a compressed state. One end of the spring 13 is fixedly connected with the stop sheet 15, and the other end is fixedly connected with the bottom of the blind hole 10. The connecting wire 12 is located in the spring 13. When the connecting wire 12 is broken due to heat, the spring 13 pushes the temperature sensing rod 11 to extend out of the blind hole 10.
[0031] The working principle of the ring clamp is as follows: the worker first fixes the grounding wire on the grounding ring 2, then hangs the wire slot 1 on the clamp body on the conductor, rotates the ring bolt 4 to push the pressing plate 5 to move the conductor upward until the top end of the clamp head 8, thereby rotating the bottom end of the clamp head 8 to the inside of the wire slot 1 to realize self-locking; when the conductor or the grounding wire is in poor contact, the temperature of the clamp body will rise, and the temperature sensing rod 11 will also sense the temperature rise, so that the connecting wire 12 is broken due to heat, and the spring 13 between the temperature sensing rod 11 and the bottom of the blind hole 10 pushes the temperature sensing rod 11 to extend out of the blind hole 10, so that the maintenance personnel can find this condition, and it is known that the grounding wire or the conductor is in poor contact or other abnormal conditions.
[0032] The above is the basic embodiment of the utility model, which can be further improved, optimized and limited on the basis of the above, so as to obtain the following embodiments:
[0033] Embodiment 2
[0034] This embodiment is an improved scheme based on embodiment 1, and the main structure is the same as that of embodiment 1, and the improvement point is that:
[0035] As shown in Figure 4 , Figure 5 , a baffle 15 is coaxially arranged at one end of the temperature sensing rod 11 extending into the blind hole 10, the baffle 15 is circular, the diameter of the baffle 15 is greater than the diameter of the temperature sensing rod 11 and slightly smaller than the inner diameter of the blind hole 10; a limiting ring 16 is arranged at the opening 3 of the blind hole 10, the inner diameter of the limiting ring 16 is smaller than the diameter of the baffle 15, the baffle 15 and the limiting ring 16 cooperate to limit the limit displacement of the temperature sensing rod 11, prevent the temperature sensing rod 11 from being pushed out of the blind hole 10 by the spring 13, and further ensure that the worker can find the abnormal conductor or grounding wire in time.
[0036] The end of the temperature sensing rod 11 facing the opening 3 of the blind hole 10 is provided with a warning indicator 14, the color of the warning indicator 14 is bright and eye-catching, so that the maintenance personnel can easily find it.
[0037] The above description of the disclosed embodiments enables a person skilled in the art to implement or use the utility model. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the utility model. Therefore, the utility model will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A self-locking grounding current-leading ring clamp for mounting grounding current-leading wires in a substation, comprising a clamp body, wherein grounding rings (2) and a wire groove (1) with an opening (3) are respectively provided on both sides of the clamp body, a receiving groove (6) is provided on the outer side of the top of the wire groove (1), the top of the clamp head (8) is rotatably disposed in the receiving groove (6), and a torsion spring (9) is provided between the clamp head (8) and the receiving groove (6) for pushing the bottom end of the clamp head (8) to be located outside the wire groove (1), a lifting eye bolt (4) is provided at the lower end of the groove wall of the wire groove (1), the top of the lifting eye bolt (4) extends into the wire groove (1) and is provided with a pressure plate (5), during the upward movement of the lifting eye bolt (4), the conductor located above the pressure plate (5) pushes the clamp head (8) to rotate until the clamp head (8) blocks the opening (3) of the wire groove (1), characterized in that: The bottom of the clamp body is provided with a blind hole (10). A connecting line (12) is provided at the bottom of the blind hole (10) to restrict the temperature sampling rod (11) inside the blind hole (10). A spring (13) is provided between the end of the temperature sampling rod (11) and the bottom of the blind hole (10). After the connecting line (12) breaks due to heat, the spring (13) pushes the temperature sampling rod (11) out of the blind hole (10).
2. The self-locking grounding lead-in ring clamp for substation grounding lead-in line mounting as described in claim 1, characterized in that: A baffle (15) is provided at one end of the temperature sampling rod (11) that extends into the blind hole (10), and a limiting ring (16) is provided at the opening (3) of the blind hole (10). The baffle (15) and the limiting ring (16) cooperate to limit the extreme displacement of the temperature sampling rod (11).
3. The self-locking grounding lead-in ring clamp for substation grounding lead-in wire mounting as described in claim 1, characterized in that: A warning indicator (14) is provided at the end of the temperature sampling rod (11) facing the opening of the blind hole (10).
4. The self-locking grounding lead-in ring clamp for substation grounding lead-in line mounting as described in claim 1, characterized in that: The bottom end of the groove (1) is provided with a through hole (7) for the lifting eye bolt (4) to pass through; the inner side wall of the through hole (7) is provided with an internal thread that matches the external thread of the lifting eye bolt.
5. A self-locking grounding lead-in ring clamp for substation grounding lead-in wire mounting as described in claim 1, characterized in that: One end of the spring (13) is fixedly connected to the baffle (15), and the other end is fixedly connected to the bottom of the blind hole (10).
6. A self-locking grounding lead-in ring clamp for substation grounding lead-in wire mounting as described in claim 1, characterized in that: One end of the connecting line (12) is fixedly connected to the baffle (15), and the other end is fixedly connected to the bottom of the blind hole (10). The connecting line (12) is located inside the spring (13).
7. A self-locking grounding lead-in ring clamp for substation grounding lead-in wire mounting as described in claim 1, characterized in that: The end face of the pressure plate (5) facing away from the lifting eye bolt (4) is an arc-shaped surface concave to its upper side.
8. A self-locking grounding lead-in ring clamp for substation grounding lead-in wire mounting as described in claim 1, characterized in that: The grounding ring (2) is rotatably connected to the clamp body.
9. A self-locking grounding lead-in ring clamp for substation grounding lead-in wire mounting as described in claim 1, characterized in that: The connecting wire (12) is made of low-density polyethylene.