Lightning arrester with porcelain jacket

Abstract

The utility model provides a porcelain jacket lightning arrester which comprises a ceramic jacket, a core body is arranged in the middle of the ceramic jacket, the top of the core body is connected with a wiring terminal, the bottom of the core body is connected with an aluminum pipe, the bottom of the aluminum pipe is connected with a first spring, the bottom of the first spring is connected with a lower end sealing gasket, and the bottom of the lower end sealing gasket is connected with a ground wire through an end cover. The bottom of the ceramic shell is detachably connected with a hoop assembly, the bottom of the hoop assembly is detachably connected with a collecting device, and the problems that after fragments of an existing lightning arrester porcelain sleeve fall off, the probability is extremely small, a human body or objects are damaged, the lightning arrester cannot work normally after the porcelain sleeve is broken, and if maintenance personnel do not conduct on-site maintenance, the maintenance personnel cannot work normally are solved. And the damage of the lightning arrester is difficult to find.

Description

Technical Field

[0001] The utility model mainly relates to the technical field of lightning arresters, in particular to a porcelain jacketed lightning arrester. Background Art

[0002] Lightning arrester with porcelain as outer shell packaging material and accessories and sealing system. Any lightning arrester may be overloaded. The reason may be strong lightning wave impact, multiple composite impacts of more than 2 times, or system flashover, at which time two different voltage levels are short-circuited.

[0003] An overload of one form or another will cause a hole in the metal oxide resistor valve plate and an arc between the valve plate column and the housing. The arc causes the gas pressure to rise rapidly. To prevent an overpressure explosion, the pressure relief valves at both ends of the arrester open almost simultaneously and allow the heat wave to overflow. When the arc gas flow overflows, it will cause a flashover outside the arrester, thereby releasing the internal pressure, which is almost hazardless or very slight. The melting track of the arc on the valve plate makes the arrester easier to find after the arc is extinguished. The pressure relief piece of the arrester can be closed with a small piece marked with a color on request. It is easily opened by a flexible pressure relief device, which makes the defective arrester easier to detect. In rare cases, the short-circuit arc will contact the inner or outer wall of the arrester housing, and the thermal shock will cause the porcelain jacket to break and cause the arrester to fall apart when the pressure is released. However, the inspection instructions clearly stipulate that as long as the fragments of the arrester porcelain sleeve fall within the specified radius, it is allowed. Of course, this type of falling still has certain risks. There is a very small probability of causing damage to people or objects, and the lightning arrester will not work normally after the porcelain jacket breaks. If the maintenance personnel do not conduct on-site inspections, it is difficult to detect damage to the lightning arrester.

[0004] It should be noted that the above contents belong to the technical cognition scope of the inventor. Since the technical contents in this field are vast and too complicated, the above contents of this application do not necessarily constitute prior art. Utility Model Content

[0005] 1. Technical problems to be solved by the utility model

[0006] The utility model provides a porcelain jacket arrester to solve the technical problems existing in the above-mentioned background technology.

[0007] 2. Technical solution

[0008] To achieve the above-mentioned purpose, the technical solution provided by the utility model is: a porcelain jacket lightning arrester, comprising a ceramic jacket, a core body is provided in the middle of the ceramic jacket, the top of the core body is connected to the wiring terminal, the bottom of the core body is connected to the aluminum tube, the bottom of the aluminum tube is connected to the first spring, the bottom of the first spring is connected to the lower end sealing gasket, the bottom of the lower end sealing gasket is connected to the ground wire through the end cover, the bottom of the ceramic shell is detachably connected to the clamp assembly, the bottom of the clamp assembly is detachably connected to the collecting device, the other end of the clamp assembly is connected to the electric pole, which will not be elaborated here. The device is installed on the electric pole through the clamp assembly, the top is connected to the line through the wiring terminal, and the bottom is connected to the ground wire, which protects the line. The collecting device at the bottom of the device can catch most of the fragments when the top ceramic jacket is broken, thereby reducing the damage to pedestrians or objects at the bottom.

[0009] Furthermore, the collecting device includes a collecting plate, a through hole is opened in the middle of the collecting plate, a first protrusion block is evenly arranged at the bottom of the through hole, the bottom of the first protrusion block is connected to the second protrusion block through a second spring, the bottom of the second protrusion block is connected to a supporting ring, the top of the supporting ring is connected to a fixing tube, fixing holes are opened on four sides of the top of the fixing tube, and the fixing holes are detachably connected to positioning pins.

[0010] Furthermore, an arc-shaped surrounding plate is provided on the outer side of the collecting tray.

[0011] Furthermore, the arc-shaped surrounding plate and the top of the collecting plate are evenly provided with spikes.

[0012] Furthermore, a contact switch is provided at the bottom of the collecting tray, and a signal transmitter is provided on the side of the contact switch.

[0013] Furthermore, the water leakage holes are evenly distributed on the collecting plate.

[0014] Furthermore, a rubber gasket is provided at the end of the positioning pin.

[0015] 3. Beneficial effects

[0016] Compared with the prior art, the technical solution provided by the utility model has the following beneficial effects:

[0017] The utility model has a reasonable design. By installing a collecting device at the bottom of the ceramic jacket, the device can collect most of the debris when the ceramic jacket arrester breaks, reducing the impact of the bottom residue falling on pedestrians or objects, and is suitable for areas with relatively harsh environments.

[0018] And after receiving the ceramic chip residue, the collection plate will trigger the signal transmitter to remind the maintenance personnel to come and check, thus protecting the electrical safety of the equipment.

[0019] It should be noted that the structures not introduced in the present invention are not related to the design points and improvement directions of the present invention, and are the same as the prior art or can be implemented by using the prior art, and will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the utility model;

[0021] Figure 2 This is a schematic diagram of the main body of the lightning arrester of the utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the collection device of the utility model;

[0023] Figure 4 It is a schematic diagram of the bottom structure of the collecting device of the present utility model.

[0024] Reference numerals

[0025] 1. Ceramic jacket; 2. Core; 3. Terminal block; 4. Aluminum tube; 5. First spring; 6. Lower end sealing gasket; 7. End cover; 8. Clamp assembly; 9. Collecting device; 91. Collecting plate; 911. Arc-shaped surrounding plate; 912. Spike; 913. Contact switch; 914. Signal transmitter; 915. Leakage hole; 916. Rubber gasket; 92. Through hole; 93. Second spring; 94. Support ring; 95. Fixing tube; 96. Fixing hole; 97. Positioning pin. DETAILED DESCRIPTION

[0026] To facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0027] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "page", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0028] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0029] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed", "provided with", "provided on" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Example

[0030] See attached Figure 1-4 A porcelain jacket lightning arrester comprises a ceramic jacket 1, a core body 2 is provided in the middle of the ceramic jacket 1, the top of the core body 2 is connected to a wiring terminal 3, the bottom of the core body 2 is connected to an aluminum tube 4, the bottom of the aluminum tube 4 is connected to a first spring 5, the bottom of the first spring 5 is connected to a lower end sealing gasket 6, the bottom of the lower end sealing gasket 6 is connected to a ground wire through an end cover 7, the bottom of the ceramic jacket 1 is detachably connected to a clamp assembly 8, the bottom of the clamp assembly 8 is detachably connected to a collecting device 9, the other end of the clamp assembly 8 is connected to a telephone pole, which will not be described in detail here. The device is installed on the telephone pole through the clamp assembly 8, the top is connected to the line through the wiring terminal 3, and the bottom is connected to the ground wire, which protects the line. The collecting device 9 at the bottom of the device can catch most of the fragments when the top ceramic jacket 1 is broken, thereby reducing the damage to pedestrians or objects at the bottom.

[0031] The collecting device 9 includes a collecting plate 91, a through hole 92 is opened in the middle of the collecting plate 91, and a first protrusion block is evenly arranged at the bottom of the through hole 92. The bottom of the first protrusion block is connected to the second protrusion block through a second spring 93, and the bottom of the second protrusion block is connected to a supporting ring 94. The top of the supporting ring 94 is connected to a fixing tube 95. The fixing holes 96 are opened on the four sides of the top of the fixing tube 95. The fixing holes 96 are detachably connected to positioning pins 97. When the collecting device 9 is installed, the fixing tube 95 is inserted upward from the bottom of the ceramic jacket 1, and then rotated and locked by each positioning pin 97 to complete the connection and fixation of the ceramic jacket 1. When the ceramic on the top is broken, it will directly fall into the collecting plate 91.

[0032] An arc-shaped surrounding plate 911 is disposed on the outer side of the collecting tray 91, and the arc-shaped surrounding plate 911 can further prevent the porcelain from falling downward, thereby improving the protection performance.

[0033] The arc-shaped surrounding plate 911 and the top of the collecting plate 91 are evenly provided with spikes 912, and the spikes 912 can prevent most birds from staying thereon.

[0034] A contact switch 913 is provided at the bottom of the collection tray 91, and a signal transmitter 914 is provided on the side of the contact switch 913. When the top collection tray 91 catches the broken ceramics, the contact switch 913 will contact the bottom support ring 94 due to the increase in weight, thereby triggering the switch of the signal transmitter 914, making it easier for staff to discover damage to the lightning arrester in a timely manner.

[0035] The collecting plate 91 is evenly distributed with water leakage holes 915, which can drain rainwater in time to prevent excessive rainwater from causing erroneous signal transmission.

[0036] A rubber gasket 916 is disposed at the end of the positioning pin 97, and the rubber gasket 916 can improve the locking effect.

[0037] The above-mentioned embodiments only express a certain implementation method of the utility model, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the patent of the utility model shall be based on the attached claims.

Claims

1. A porcelain-coated lightning arrester, characterized in that: The invention comprises a ceramic jacket (1), wherein a core (2) is provided in the middle of the ceramic jacket (1), the top of the core (2) is connected to a wiring terminal (3), the bottom of the core (2) is connected to an aluminum tube (4), the bottom of the aluminum tube (4) is connected to a first spring (5), the bottom of the first spring (5) is connected to a lower end sealing gasket (6), the bottom of the lower end sealing gasket (6) is connected to a ground wire through an end cover (7), the bottom of the ceramic jacket (1) is detachably connected to a clamping hoop assembly (8), and the bottom of the clamping hoop assembly (8) is detachably connected to a collecting device (9).

2. A porcelain-coated lightning arrester according to claim 1, characterized in that: The collecting device (9) comprises a collecting plate (91), a through hole (92) is formed in the middle of the collecting plate (91), a first protrusion block is evenly arranged at the bottom of the through hole (92), the bottom of the first protrusion block is connected to a second protrusion block via a second spring (93), the bottom of the second protrusion block is connected to a supporting ring (94), the top of the supporting ring (94) is connected to a fixing tube (95), the top of the fixing tube (95) is formed with fixing holes (96) on four sides, and the fixing holes (96) are detachably connected to positioning pins (97).

3. A porcelain-coated lightning arrester according to claim 2, characterized in that: An arc-shaped surrounding plate (911) is provided on the outer side of the collecting plate (91).

4. A porcelain-coated lightning arrester according to claim 3, characterized in that: Spikes (912) are evenly arranged on the top of the arc-shaped surrounding plate (911) and the collecting plate (91).

5. A porcelain-coated lightning arrester according to claim 2, characterized in that: A contact switch (913) is provided at the bottom of the collection tray (91), and a signal transmitter (914) is provided on the side of the contact switch (913).

6. A porcelain-coated lightning arrester according to claim 5, characterized in that: The water leakage holes (915) are evenly distributed on the collecting plate (91).

7. A porcelain-coated lightning arrester according to claim 2, characterized in that: A rubber gasket (916) is provided at the end of the positioning pin (97).

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