CN204241520U - Simple portable test of lightning arrester handling frame - Google Patents

Abstract

The utility model discloses a simple and portable lightning arrester test operation frame. A lightning arrester is installed on the top of a support base, and a through groove is formed in the bottom end of the support base. The lightning arrester communicates with the inside of the through groove. It is welded and fixed with the through groove, and the other end is set outside the support base, and a locking mechanism is set outside the support base, the connecting plate passes through the opening of the locking frame and is set inside the locking frame, and one end of the locking screw is set inside the locking frame And it is in close contact with the connecting plate, the locking screw is covered with a locking nut, the locking nut is arranged inside the locking frame, the locking screw is provided with a rotating wrench, the rotating wrench passes through the locking screw, and the rotating wrench is arranged in the locking frame external. The test operation frame simulates the installation status of the arrester during operation, and the measured leakage value can correctly reflect the real situation of the arrester; it is used to fix the arrester on the operation frame to ensure the safety of equipment and personnel, reliable grounding, and high-voltage test conditions; simple, portable, Improve work efficiency.

Description

Simple portable lightning arrester test operation frame

technical field

The utility model relates to the field of electric equipment, in particular to a simple and portable lightning arrester test operation frame.

Background technique

Zinc oxide arrester is a very common electrical equipment in the power grid. The arrester is a device that protects electrical equipment from lightning damage. The principle is the same as that of the lightning rod. The arrester is divided into high-voltage and low-voltage arresters. The most primitive lightning arrester is a horn-shaped gap, which appeared at the end of the 19th century and was used for overhead transmission lines to prevent lightning strikes from damaging equipment insulation and causing power outages, so it is called "lightning arrester". In the 1920s, aluminum Al shield arresters, oxide film Al shield arresters and pellet Al shield arresters appeared. In the 1930s, the tubular Alshield arrester appeared. In the 1950s, silicon carbide Alshield arresters appeared. In the 1970s, metal oxide Alshield arresters appeared again. Modern high-voltage Alshield arresters are not only used to limit the overvoltage caused by lightning in the power system, but also used to limit the overvoltage caused by system operation. The daily maintenance workload of the substation maintenance team is also very large. Especially during the test of the outdoor line arrester, due to the limitation of the site conditions, the high-voltage test not only has potential safety hazards, but also reduces work efficiency. In the past, the test method used a wooden bench as a support, an insulating pad on the shelf as an operating platform, and the arrester was placed flat on the insulating pad. The leakage value measured by this method could not correctly reflect the real situation of the arrester. In the past, the lightning arrester was placed flat on the insulating pad, and there was a danger of slipping during the test process, resulting in equipment damage. The grounding wire is not connected at a fixed point, and the grounding is unreliable. There are potential safety hazards during the test, and it may even cause the danger of electric shock. It is not easy to carry for outdoor work, which affects work efficiency.

Utility model content

The technical problem to be solved by the utility model is to provide a simple portable lightning arrester test operation frame, which simulates the installation condition of the lightning arrester during operation, and the leakage value measured in this way can correctly reflect the real situation of the lightning arrester, and the lightning arrester is fixed in the operating position. On the frame, it is firm and reliable, ensuring the safety of equipment and personnel. The grounding wire clip is fixed on the grounding bolt of the operation frame. The grounding is reliable and meets the high-voltage test conditions, ensuring the safety of equipment and personnel. It is simple, portable, and improves work efficiency.

The technical solution adopted by the utility model to solve the above problems is: a simple portable lightning arrester test operation frame, including a support base in a regular square structure, a lightning arrester is installed on the top of the support base, and the lightning arrester is vertically fixed on the top surface of the support base , the bottom end of the support seat is concaved to form a through groove, the through groove communicates with the two symmetrical side walls of the support seat, the lightning arrester communicates with the inside of the through groove, a connecting plate is arranged in the through groove, and one end of the connecting plate is arranged in the through groove and connected to the through groove The bottom surface of the through groove is welded and fixed, and the other end is set outside the support seat, and a locking mechanism is provided outside the support seat. The locking mechanism includes a locking frame and a locking screw. The locking frame is a metal frame structure with a hollow inside and an open end. , one end of the connecting plate set outside the support seat passes through the opening of the locking frame and is set inside the locking frame, one end of the locking screw is set inside the locking frame and is in close contact with the connecting plate, the center line of the locking screw is in close contact with the connecting plate The center line of the locking screw is vertical, the outer wall of the locking screw is fitted with a locking nut, the locking nut is set inside the locking frame, and the end of the locking screw set outside the locking frame is provided with a rotary wrench, the rotary wrench passes through the locking screw, and the centerline of the rotary wrench is perpendicular to the centerline of the locking screw, and the rotary wrench is arranged outside the locking frame. In the past, the lightning arrester was placed flat on the insulating pad, and there was a danger of slipping during the test process, resulting in equipment damage. The grounding wire is not connected at a fixed point, and the grounding is unreliable. There are potential safety hazards during the test, and it may even cause the danger of electric shock. Outdoor work is not easy to carry, which affects work efficiency. In this scheme, the lightning arrester is fixed on the support base, and the test structure is electrically connected to the lightning arrester through the locking mechanism for testing. Since the metal structure is conductive, the data can be accurately tested. , to get accurate values, and easy to carry, high work efficiency.

There is a support plate in the locking frame, one end of the support plate is vertically fixed to the inner wall of the locking frame, the support plate is arranged under the connecting plate, the top of the lock nut is welded and fixed to the bottom of the support plate, and the locking screw passes through the locking The nut and the support plate are then in contact with the bottom end of the connecting plate.

The top of the connecting plate protrudes to form an arc-shaped boss, which is aligned with the side wall of the connecting plate, and the top of the inner wall of the locking frame is concaved to form an arc-shaped groove, and the arc-shaped groove and the arc-shaped boss cooperate with each other , the arc-shaped boss is set in the arc-shaped groove and is in close contact. This structure increases the contact area, and the connection plate and the locking frame will not be easily separated, which increases the locking function, can withstand enough shaking, and is firmly grounded to avoid potential safety hazards.

A fixed wire clip is arranged on the outer wall of the locking frame, and the fixed wire clip is fixed to the outer wall of the locking frame.

Three nuts are arranged on the bottom surface of the through groove, the end faces of the nuts are welded and fixed on the bottom surface of the through groove, and the lightning arrester is fixed through the support base and the corresponding nuts. The number of nuts is designed according to the number of arresters, and the number of nuts is greater than or equal to the number of arresters, so that all arresters can be fixed.

To sum up, the beneficial effects of the utility model are: the test operation frame simulates the installation condition of the arrester during operation, and the measured leakage value can correctly reflect the real situation of the arrester; The test conditions ensure the safety of equipment and personnel; it is simple and portable to improve work efficiency.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Figure 2 is a bottom view of the support base.

The marks in the drawings and the names of corresponding parts: 1—arrestor; 2—connecting plate; 3—locking frame; 4—arc groove; 5—arc boss; 6—support plate; 7—lock nut ; 8—locating bolt; 9—fixed clamp; 10—cable; 11—locking screw; 12—rotary wrench; 13—support seat; 14—nut;

Detailed ways

The utility model will be further described in detail below in conjunction with the embodiments and accompanying drawings, but the implementation of the utility model is not limited thereto.

Example 1:

As shown in Figure 1, the simple and portable lightning arrester test operation frame includes a support base 13 in a regular square structure, the top of the support base 13 is equipped with a lightning arrester 1, and the lightning arrester 1 is vertically fixed on the top surface of the support base 13. The bottom end of the seat 13 is concaved to form a through groove 15, the through groove 15 communicates with the two symmetrical side walls of the support seat 13, the lightning arrester 1 communicates with the inside of the through groove 15, the connecting plate 2 is arranged in the through groove 15, and one end of the connecting plate 2 It is arranged in the through groove 15 and welded and fixed with the bottom surface of the through groove 15, and the other end is arranged on the outside of the support seat 13, and a locking mechanism is arranged outside the support seat 13, and the locking mechanism includes a locking frame 3 and a locking screw rod 11, The locking frame 3 is a metal frame structure with a hollow interior and an opening at one end. One end of the connecting plate 2 arranged on the outside of the support seat 13 passes through the opening of the locking frame 3 and is arranged inside the locking frame 3. One end of the locking screw 11 is arranged on the lock. The inside of the tight frame 3 is in close contact with the connecting plate 2, the centerline of the locking screw 11 is perpendicular to the centerline of the connecting plate 2, the outer wall of the locking screw 11 is fitted with a locking nut 7, and the locking nut 7 is arranged on the lock Inside the tight frame 3, the locking screw rod 11 is provided with a rotary wrench 12 at one end outside the locking frame 3, the rotary wrench 12 passes through the locking screw rod 11, and the center line of the rotary wrench 12 is perpendicular to the center line of the locking screw rod 11 , the rotary wrench 12 is arranged outside the locking frame 3 . The rotating wrench 12 is a metal rod structure, which is used as a lever for the operator to rotate the locking screw 11, so that the rotation is more labor-saving. The lightning arrester 1 is fixed on the support base 13, and the test structure is conductively connected to the lightning arrester through the locking mechanism. To test, because the metal structure is conductive, the data can be accurately tested, the accurate value can be obtained, it is safe and reliable, there is no potential safety hazard during the test, and the danger of equipment damage and electric shock is avoided. On the operating stand, it is firm, reliable in grounding, meets the high-voltage test conditions, and ensures the safety of equipment and personnel; it is simple and portable, and improves work efficiency.

Example 2:

As shown in Figure 1, on the basis of Embodiment 1, a support plate 6 is provided in the locking frame 3, and one end of the support plate 6 is vertically fixed to the inner wall of the locking frame 3, and the support plate 6 is arranged below the connecting plate 2, and the lock The top of the lock nut 7 is welded to the bottom of the support plate 6 , and the lock screw 11 contacts the bottom of the connecting plate 2 after passing through the lock nut 7 and the support plate 6 . Because the internal size of the locking frame 3 is too large, there is a large space for the connecting plate 2 to sway, and the operator is prone to impact when carrying it, destroying the integrity of the structure and causing inaccurate test results. Therefore, the support plate 6 is set to make the internal space Compact, the locking screw rod 11 can be fixed by rotating a small distance.

Example 3:

As shown in Figure 1, on the basis of the above-mentioned embodiment, the top end of the connecting plate 2 protrudes to form an arc boss 5, the arc boss 5 is aligned with the side wall of the connecting plate 2, and the top end of the inner wall of the locking frame 3 The indentation forms an arcuate groove 4, and the arcuate groove 4 cooperates with the arcuate boss 5, and the arcuate boss 5 is arranged in the arcuate groove 4 and closely contacts. Through the mutual cooperation of the arc groove 4 and the arc boss 5, the contact area is increased, the data transmission can be accurate, stable values can be obtained, and the measured leakage value can correctly reflect the real situation of the arrester.

Example 4:

As shown in FIG. 1 , on the basis of the above embodiments, a fixed wire clip 9 is provided on the outer wall of the locking frame 13 , and the fixed wire clip 9 is fixed to the outer wall of the locking frame 13 . The fixed wire clip 9 is connected with a cable 10, and as a conduction structure, the fixed wire clip 9 is fixed on the outer wall of the locking frame 13 through the positioning bolt 8, so that the close contact enables the current to be transmitted stably, and the test data is accurate.

Example 5:

As shown in Figure 2, on the basis of the above embodiment, three nuts 14 are arranged on the bottom surface of the through groove 15, and the end faces of the nuts 14 are welded and fixed on the bottom surface of the through groove 15, and the lightning arrester 1 passes through the supporting base 13 and the corresponding nuts 14 fixed. Because the arrester 1 has a certain weight, when it is fixed on the support base 13, there is a problem of shaking, so a nut 14 is provided at the corresponding position where the arrester 1 passes, and the arrester 1 is fixed by using the self-locking characteristic of the thread to avoid The data caused by the shaking of the arrester 1 during the test in the field environment is inaccurate.

As mentioned above, the utility model can be better realized.

Claims (5)

1. The simple and portable lightning arrester test operation frame is characterized in that it includes a support base (13) in a regular square structure, and the top of the support base (13) is installed with a lightning arrester (1), and the lightning arrester (1) is vertically fixed on the support On the top surface of the seat (13), the bottom of the support seat (13) is recessed to form a through groove (15), the through groove (15) communicates with the two symmetrical side walls of the support seat (13), and the lightning arrester (1) and The through groove (15) is internally connected, and a connecting plate (2) is arranged in the through groove (15). One end of the connecting plate (2) is arranged in the through groove (15) and is welded to the bottom surface of the through groove (15). It is arranged on the outside of the support base (13), and a locking mechanism is provided outside the support base (13). The locking mechanism includes a locking frame (3) and a locking screw (11). The locking frame (3) is hollow inside and A metal frame structure with one end open, one end of the connecting plate (2) set outside the support base (13) passes through the opening of the locking frame (3) and is set inside the locking frame (3), and one end of the locking screw (11) is set Inside the locking frame (3) and in close contact with the connecting plate (2), the center line of the locking screw (11) is perpendicular to the center line of the connecting plate (2), and the outer wall of the locking screw (11) is fitted with The lock nut (7), the lock nut (7) is arranged inside the lock frame (3), and the end of the lock screw rod (11) arranged outside the lock frame (3) is provided with a rotary wrench (12), the rotary wrench (12) Pass through the locking screw (11), and the center line of the rotating wrench (12) is perpendicular to the center line of the locking screw (11), and the rotating wrench (12) is set outside the locking frame (3). 2. The simple portable lightning arrester test operation frame according to claim 1, characterized in that, the locking frame (3) is provided with a support plate (6), and one end of the support plate (6) is connected to the locking frame (3) The inner wall is vertically fixed, the support plate (6) is set under the connecting plate (2), the top of the lock nut (7) is welded to the bottom of the support plate (6), and the lock screw (11) passes through the lock nut (7) and the support plate (6) are in contact with the bottom end of the connecting plate (2). 3. The simple portable lightning arrester test operation stand according to claim 1, characterized in that the top end of the connecting plate (2) protrudes to form an arc boss (5), and the arc boss (5) is connected to The side walls of the plate (2) are aligned, and the top of the inner wall of the locking frame (3) is concave to form an arc surface groove (4). The arc surface groove (4) cooperates with the arc surface boss (5), and the arc surface is convex. The platform (5) is arranged in the arc surface groove (4) and is in close contact. 4. The simple portable lightning arrester test operation frame according to claim 1, characterized in that, the outer wall of the locking frame (13) is provided with a fixed wire clip (9), and the fixed wire clip (9) and the locking frame (13) The outer wall is fixed. 5. The simple portable lightning arrester test operation frame according to claim 1, characterized in that three nuts (14) are arranged on the bottom surface of the through groove (15), and the end faces of the nuts (14) are welded and fixed on the through groove (15) ), the arrester (1) is fixed through the support base (13) and the corresponding nut (14).