Elbow-shaped plug with lightning arrester function

Abstract

The utility model relates to the technical field of elbow-shaped plugs, in particular to an elbow-shaped plug with a lightning arrester function. According to the technical scheme, the lightning protection device comprises an insulating jacket, a power connection column and a lightning protection column, the bottom of the insulating jacket and the upper ends of the power connection column and the lightning protection column are fixed and distributed in a right-angle mode, the insulating jacket, the power connection column and the lightning protection column are all made of insulating materials, a connecting plug is arranged at the end of the insulating jacket, and a connecting rod is fixed to the center in the insulating jacket. Conducting rods are fixed to the positions, corresponding to the power connection columns and the lightning protection columns, of the connecting rod, the bottoms of the conducting rods are inserted into the power connection columns and the lightning protection columns respectively, and grounding wires are fixed to the bottoms of the lightning protection columns. According to the utility model, the lightning protection column is additionally arranged on the elbow-shaped plug, the resistance of the zinc oxide element is reduced after overvoltage, current can be led into the ground, the purpose of lightning protection is realized, and the stabilizing sleeve is additionally arranged at the periphery of the end part of the connecting plug, so that the stability after plugging can be improved, and the risk of falling off can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of elbow-type plugs, in particular to an elbow-type plug with a lightning arrester function. Background Art

[0002] An elbow plug is a power plug in which the connection angle between the socket part and the plug part is 90 degrees or other non-right angles, making it suitable for certain special installation or wiring requirements.

[0003] In terms of the safety protection of the power plug, the instantaneous high voltage problem caused by lightning strikes is the main hidden danger threatening the safety of cable plugs and circuits. Therefore, it is necessary to design a structure that can perform lightning protection on the power plug to ensure the safety of the power plug and the entire circuit. At the same time, the end of the elbow-type plug is mainly fixed by the insertion of the connecting plug. On this basis, if there is no additional auxiliary fixing structure, the possibility of the plug loosening is relatively increased. Therefore, in order to ensure that the elbow-type plug is more stable, it is necessary to design an elbow-type plug with an auxiliary fixing structure. Utility Model Content

[0004] The utility model aims to solve the problems existing in the background technology and proposes an elbow-type plug with a lightning arrester function.

[0005] The technical solution of the utility model: an elbow-type plug with a lightning arrester function, comprising an insulating jacket, a power connection post and a lightning arrester post, wherein the bottom of the insulating jacket is fixed to the upper ends of the power connection post and the lightning arrester post and is distributed at right angles, the insulating jacket, the power connection post and the lightning arrester post are all made of insulating materials, a connecting plug is arranged at the end of the insulating jacket, a connecting rod is fixed at the center position inside the insulating jacket, a conductive rod is fixed on the connecting rod and at a position corresponding to the power connection post and the lightning arrester post, the bottom of the conductive rod is respectively inserted into the power connection post and the lightning arrester post, a grounding wire is fixed to the bottom of the lightning arrester post, a zinc oxide element is fixed in the lightning arrester post and between the grounding wire and the conductive rod, a stabilizing sleeve is fixed at the end of the insulating jacket and located outside the connecting plug, and a negative pressure adsorption component is arranged in the stabilizing sleeve.

[0006] Preferably, the negative pressure adsorption assembly includes a negative pressure groove and an internal threaded sleeve, the negative pressure groove is opened at the end of the stabilizing sleeve and is an annular structure, the internal threaded sleeve is threadedly connected to the insulating outer sleeve and is located at the rear side of the stabilizing sleeve.

[0007] Preferably, a piston plate is slidably connected in the negative pressure groove, a group of connecting rods are fixed to the rear side of the piston plate, and the ends of the connecting rods are mounted on the internal threaded sleeves.

[0008] Preferably, a rotating ring plate is rotatably connected to the front side of the internal threaded sleeve and at a position corresponding to the connecting rod, and one end of the connecting rod extending out of the negative pressure groove is fixed on the rotating ring plate.

[0009] Preferably, an airtight pad is fixed to the end of the stabilizing sleeve, and the airtight pad is made of elastic rubber material.

[0010] Preferably, a connecting cable is fixed at the bottom of the power connection post, an overvoltage protector is fixed between the connecting cable and the conductive rod, and the overvoltage protector is located inside the power connection post.

[0011] Compared with the prior art, the utility model has the following beneficial technical effects: a lightning pole is installed on the elbow-type plug, and the resistance of the zinc oxide element decreases after overvoltage, so that the current can be conducted into the ground to achieve the purpose of lightning protection, and a stabilizing sleeve is installed on the periphery of the end of the connecting plug to increase the stability after insertion and reduce the risk of falling off. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the side cutaway structure of the utility model;

[0013] Figure 2 This is a schematic diagram of the combined structure of the stabilizing sleeve and the end of the insulating jacket of the utility model;

[0014] Figure 3 It is a schematic diagram of the cross-sectional structure of the connection between the stabilizing sleeve and the internal threaded sleeve of the utility model.

[0015] Figure numerals: 1. Insulating jacket; 11. Connecting plug; 12. Conductive rod; 13. Connecting rod; 2. Connecting pole; 21. Connecting cable; 22. Overvoltage protector; 3. Lightning pole; 31. Grounding wire; 32. Zinc oxide element; 4. Stabilizing sleeve; 41. Negative pressure groove; 42. Piston plate; 43. Connecting rod; 44. Airtight gasket; 5. Internal threaded sleeve; 51. Rotating ring plate. DETAILED DESCRIPTION

[0016] The technical solution of the utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0017] Embodiment 1

[0018] like Figure 1As shown, the utility model proposes an elbow-type plug with a lightning arrester function, including an insulating jacket 1, a power post 2 and a lightning arrester 3. The bottom of the insulating jacket 1 is fixed to the upper ends of the power post 2 and the lightning arrester 3 and is distributed at right angles. The insulating jacket 1, the power post 2 and the lightning arrester 3 are all made of insulating materials. A connecting plug 11 is provided at the end of the insulating jacket 1. A connecting rod 13 is fixed at the center position of the insulating jacket 1. A conductive rod 12 is fixed on the connecting rod 13 and at a position corresponding to the power post 2 and the lightning arrester 3. The bottom of the pole 12 is respectively inserted into the connection pole 2 and the lightning pole 3. A grounding wire 31 is fixed to the bottom of the lightning pole 3. A zinc oxide element 32 is fixed in the lightning pole 3 and between the grounding wire 31 and the conductive pole 12. A stabilizing sleeve 4 is fixed at the end of the insulating jacket 1 and located outside the connecting plug 11. A negative pressure adsorption component is arranged in the stabilizing sleeve 4. A connecting cable 21 is fixed to the bottom of the connection pole 2. An overvoltage protector 22 is fixed between the connecting cable 21 and the conductive pole 12. The overvoltage protector 22 is located in the connection pole 2.

[0019] The negative pressure adsorption component includes a negative pressure groove 41 and an internal threaded sleeve 5. The negative pressure groove 41 is opened at the end of the stabilizing sleeve 4 and is an annular structure. The internal threaded sleeve 5 is threadedly connected to the insulating sleeve 1 and is located at the rear side of the stabilizing sleeve 4. A piston plate 42 is slidably connected in the negative pressure groove 41. A group of connecting rods 43 are fixed to the rear side of the piston plate 42. The end of the connecting rod 43 is installed on the internal threaded sleeve 5. A rotating ring plate 51 is rotatably connected to the front side of the internal threaded sleeve 5 and corresponds to the connecting rod 43. The end of the connecting rod 43 extending out of the negative pressure groove 41 is fixed on the rotating ring plate 51. An airtight pad 44 is fixed at the end of the stabilizing sleeve 4. The airtight pad 44 is made of elastic rubber material.

[0020] In this embodiment, first, the connecting plug 11 at the end of the insulating jacket 1 is inserted into the power socket. At this time, the end of the stabilizing sleeve 4 will be against the surface panel of the power socket. Then, the rotation of the internal threaded sleeve 5 can make it move horizontally on the insulating jacket 1. At this time, the connecting rod 43 can be pulled to move horizontally, and finally the piston plate 42 is driven to slide, so that negative pressure is formed in the negative pressure groove 41, and then it can be adsorbed and fixed on the surface panel of the power socket, and the plug-in of the connecting plug 11 is auxiliaryly fixed to increase the stability of the plug-in. At the same time, during normal operation, due to the large resistance of the zinc oxide element 32, its current will flow into the connecting cable 21 after passing through the overvoltage protector 22. On the contrary, after being struck by lightning, the resistance of the zinc oxide element 32 will drop rapidly. At this time, the current will pass through the zinc oxide element 32 and be introduced into the grounding wire 31, so as to achieve the purpose of lightning protection. In addition, when lightning strikes, the current passes through the overvoltage protector 22, which can achieve circuit breaking protection, further protecting the circuit safety.

[0021] The above-mentioned specific embodiments are only several preferred embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.

Claims

1. An elbow plug with lightning arrester function, comprising an insulating jacket (1), a power connection post (2) and a lightning arrester post (3), characterized in that: The bottom of the insulating jacket (1) is fixed to the upper ends of the power pole (2) and the lightning pole (3) and is distributed at right angles. The insulating jacket (1), the power pole (2) and the lightning pole (3) are all made of insulating materials. A connecting plug (11) is provided at the end of the insulating jacket (1). A connecting rod (13) is fixed at the center position of the insulating jacket (1). A conductive rod (12) is fixed on the connecting rod (13) and at a position corresponding to the power pole (2) and the lightning pole (3). The bottom of the conductive rod (12) is respectively inserted into the power pole (2) and the lightning pole (3). A grounding wire (31) is fixed at the bottom of the lightning pole (3). A zinc oxide element (32) is fixed in the lightning pole (3) and located between the grounding wire (31) and the conductive rod (12). A stabilizing sleeve (4) is fixed at the end of the insulating jacket (1) and located outside the connecting plug (11). A negative pressure adsorption component is provided in the stabilizing sleeve (4).

2. The elbow-type plug with lightning arrester function according to claim 1, characterized in that: The negative pressure adsorption component comprises a negative pressure groove (41) and an internal threaded sleeve (5); the negative pressure groove (41) is opened at the end of the stabilizing sleeve (4) and is an annular structure; the internal threaded sleeve (5) is threadedly connected to the insulating outer sleeve (1) and is located at the rear side of the stabilizing sleeve (4).

3. The elbow plug with lightning arrester function according to claim 2, characterized in that: A piston plate (42) is slidably connected in the negative pressure groove (41), a group of connecting rods (43) are fixed to the rear side of the piston plate (42), and the ends of the connecting rods (43) are mounted on the internal threaded sleeve (5).

4. The elbow plug with lightning arrester function according to claim 3, characterized in that: A rotating ring plate (51) is rotatably connected to the front side of the internal threaded sleeve (5) and at a position corresponding to the connecting rod (43). One end of the connecting rod (43) extending out of the negative pressure groove (41) is fixed on the rotating ring plate (51).

5. The elbow-type plug with lightning arrester function according to claim 2, characterized in that: An airtight pad (44) is fixed to the end of the stabilizing sleeve (4), and the airtight pad (44) is made of elastic rubber material.

6. The elbow-type plug with lightning arrester function according to claim 1, characterized in that: A connection cable (21) is fixed at the bottom of the power connection post (2), an overvoltage protector (22) is fixed between the connection cable (21) and the conductive rod (12), and the overvoltage protector (22) is located inside the power connection post (2).

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