A three-phase combined overvoltage protector

Abstract

The utility model provides a kind of three-phase combined overvoltage protector, including protector body base, the sliding hole is set in both end surfaces of base, bottom groove is set in the bottom of base, sliding hole is communicated with bottom groove, two groups of first connecting holes of symmetrical distribution are set in the side wall of bottom groove, two groups of second connecting holes of symmetrical distribution are set in the side wall of bottom groove;Sliding hole is all installed with the sliding connection of slide bar, the end surface of slide bar in bottom groove is all equipped with gear row, every group of first connecting hole is all rotatably connected with first rotating rod, every group of second connecting hole is all rotatably connected with second rotating rod, the first gear of fixed connection is set on each first rotating rod, first gear is engaged with corresponding gear row, second gear is fixedly connected on first rotating rod, third gear is fixedly connected on second rotating rod, second gear is engaged with corresponding third gear, the end of slide bar outside bottom groove is all fixedly connected with fixed lug.The utility model improves the convenience of the entire overvoltage protector installation.

Description

Technical Field

[0001] This utility model relates to the field of overvoltage protection technology, and more specifically, to a three-phase combined overvoltage protection device. Background Technology

[0002] Three-phase overvoltage protectors are commonly used power devices. They are connected to the busbar and used to discharge overvoltage during overvoltage events, thereby protecting the load. A three-phase overvoltage protector includes a three-phase zinc oxide surge arrester and a ground zinc oxide surge arrester installed on a junction box, as well as a discharge gap. The upper ends of the three-phase zinc oxide surge arresters are connected to the busbar, and the lower ends of the three-phase zinc oxide surge arresters are each connected to one end of the ground zinc oxide surge arrester through the discharge gap. The other end of the ground zinc oxide surge arrester is grounded.

[0003] The distance between the mounting ears of the existing three-phase overvoltage protector base is not adjustable. It is necessary to find two suitable holes that correspond one-to-one with the two mounting ears for installation. If suitable mounting holes cannot be found, the installation of the base will be inconvenient. Therefore, this utility model provides a base for an overvoltage protector. Summary of the Invention

[0004] The problem solved by this invention is that the distance between the fixing ears of the base of the existing three-phase overvoltage protector is not adjustable. It is necessary to find two suitable holes that correspond one-to-one with the two fixing ears for installation. If suitable mounting holes cannot be found, the installation of the base will be inconvenient.

[0005] To solve the above problems, this utility model provides a three-phase combined overvoltage protector, including a protector body and a base for mounting the protector body. The base has sliding holes on both ends and a bottom groove on the bottom. The sliding holes communicate with the bottom groove. The bottom groove has two sets of symmetrically distributed first connecting holes on its sidewall and two sets of symmetrically distributed second connecting holes on its sidewall. Each sliding hole is equipped with a sliding rod that is slidably connected. The end surface of each sliding rod located in the bottom groove is provided with a toothed rack. A first rotating rod is rotatably connected between each group of first connecting holes, and a second rotating rod is rotatably connected between each group of second connecting holes. A first gear is fixedly connected to each first rotating rod, and the first gear meshes with the corresponding toothed rack. A second gear is fixedly connected to the first rotating rod, and a third gear is fixedly connected to the second rotating rod, and the second gear meshes with the corresponding third gear. The end of each sliding rod located outside the bottom groove is fixedly connected with a fixing lug.

[0006] The principle and effect of the above technical solution are as follows: This overvoltage protector is equipped with a base, and adjustable mounting ears are provided at both ends of the base. During use, the distance between the two mounting ears can be adjusted to adapt to different installation environments, thus improving the ease of installation.

[0007] Preferably, one end of the second rotating rod extends out of the second rotating hole, and a rocker arm is fixedly installed on one end of the second rotating rod.

[0008] Preferably, a cable is connected to the top of the protector body, a fixing plate is fixedly installed on the protector body, a placement frame is provided on the side of the fixing plate, and a limiting ring and a limiting block adapted to the placement frame are fixedly connected to the cable.

[0009] Preferably, both ends of the base are provided with U-shaped grooves, and U-shaped rods that are slidably connected are installed in the U-shaped grooves.

[0010] Preferably, the U-shaped rod has an adjustment groove at its end, at least one second spring is fixedly installed at the bottom of the adjustment groove, a lever is fixedly installed at the upper end of the second spring located in the adjustment groove, a limiting protrusion is fixedly installed on the upper surface of the lever end, an adjustment hole is opened on the top wall of the adjustment groove directly above the limiting protrusion, a limiting groove is opened on the top wall of the U-shaped groove directly above the adjustment hole, the adjustment hole communicates with the limiting groove, and the limiting protrusion can slide within the adjustment hole and the limiting groove.

[0011] Preferably, a first spring is fixedly installed between the tail of the U-shaped rod and the bottom of the U-shaped groove.

[0012] The explanations of the nouns, conjunctions, or adjectives used in the above technical solutions are as follows: A sliding connection refers to two objects that are in contact but not fixed, and can slide relative to each other. A fixed connection means that the connecting parts cannot move relative to each other. Beneficial effects

[0013] This utility model provides a three-phase combined overvoltage protector. By setting adjustable fixing ears, the distance between the two fixing ears can be adjusted to facilitate the installation of the Zhenggege three-phase combined overvoltage protector.

[0014] This utility model provides a three-phase combined overvoltage protector. By setting a retractable U-shaped rod, the entire overvoltage protector is easy to transport, and the U-shaped rod is not exposed to the outside for a long time, which would cause inconvenience to the use of the overvoltage protector.

[0015] This utility model provides a three-phase combined overvoltage protector, which facilitates the placement of cables by setting up a placement rack and a limiting ring. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the three-phase combined overvoltage protector of this utility model from one perspective; Figure 2 This is a schematic diagram of the overall structure of the three-phase combined overvoltage protector of this utility model from another perspective; Figure 3 This is a schematic diagram of the internal structure of the bottom groove in the base of this utility model; Figure 4 This is a schematic diagram of the base structure of this utility model; Figure 5 This is a schematic diagram of the connection structure between the fixing lug and the slide rod of this utility model; Figure 6 This is a schematic diagram of the connection structure between the U-shaped rod and the U-shaped groove of this utility model; Figure 7 This utility model Figure 6 Enlarged structural diagram at point A in the middle; Figure 8 This is a schematic diagram of the connection structure between the lever and the adjusting groove of this utility model; Figure 9 This utility model Figure 8 Enlarged structural diagram at point B.

[0017] Explanation of reference numerals in the attached figures: 100. Protector body; 110. Cable; 120. Fixing plate; 130. Placement rack; 140. Limiting ring; 150. Limiting block; 200. Base; 201. U-shaped groove; 202. Limiting groove; 203. Bottom groove; 204. Sliding hole; 205. First connecting hole; 206. Second connecting hole; 300. U-shaped rod; 301. Adjusting groove; 302. Adjusting hole; 310. First spring; 320. Toggle lever; 330. Limiting protrusion; 340. Second spring; 400. Fixing ear; 410. Sliding rod; 420. Gear rack; 430. First gear; 440. Second gear; 450. Third gear; 460. First rotating rod; 470. Second rotating rod; 480. Rocker arm. Detailed Implementation

[0018] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0019] Based on the concept of this application, combined with Figures 1 to 9 This document describes an embodiment of a three-phase combined overvoltage protector. Specifically, the three-phase combined overvoltage protector is constructed as a single unit, comprising multiple components such as a base 200, mounting lugs 400, and a slide bar 410. The mounting lugs 400 are adjustable via the three-phase combined overvoltage protector to suit installation in different environments.

[0020] Please see Figure 1-5 A three-phase combined overvoltage protector includes a protector body 100 and a base 200 for mounting the protector body 100. The base 200 has sliding holes 204 on both ends and a bottom groove 203 on the bottom. The sliding holes 204 communicate with the bottom groove 203. The side wall of the bottom groove 203 has two sets of symmetrically distributed first connecting holes 205 and two sets of symmetrically distributed second connecting holes 206. Each sliding hole 204 is equipped with a sliding rod 410 that is slidably connected. The end surface of the sliding rod 410 located in the bottom groove 203 is provided with a toothed rack 420. Each group of first connecting holes 205 is rotatably connected with a first rotating rod 460, and each group of second connecting holes 206 is rotatably connected with a second rotating rod 470. Each first rotating rod 460 is fitted with a first gear 430 that is fixedly connected. The first gear 430 meshes with the corresponding toothed rack 420. The first rotating rod 460 is fixedly connected with a second gear 440, and the second rotating rod 470 is fixedly connected with a third gear 450 that meshes with the corresponding third gear 450. The end of the sliding rod 410 located outside the bottom groove 203 is fixedly connected with a fixing lug 400.

[0021] By rotating the second rotating rod 470, the third gear 450 on the second rotating rod 470 rotates, driving the second gear 440 to rotate. The second gear 440 drives the first rotating rod 460 to rotate, and the first rotating rod 460 drives the first gear 430 to rotate. The first gear 430 meshes with the gear rack 420, causing the slide rod 410 to slide within the sliding hole 204, thereby adjusting the distance between the two fixed ears 400. The first gear 430, the second gear 440, and the third gear 450 in this utility model are all types of gears. A gear is a wheel-shaped mechanical part with teeth, a wheel with continuous teeth on its edge. These teeth can mesh (engage) with another toothed part, thereby transmitting power and motion. The rack 420 is a gear that can be regarded as a "spread" or "straightened" gear, a straight, elongated part with a series of equally spaced teeth. In this application, it meshes with the gear, converting the rotational motion of the gear into the linear motion of the rack.

[0022] Please see Figure 5 In order to facilitate the rotation of the second rotating rod 470, in one embodiment, one end of the second rotating rod 470 extends out of the second rotating hole, and a rocker arm 480 is fixedly installed on one end of the second rotating rod 470.

[0023] Please see Figure 2In order to facilitate the placement of the cable 110, in one embodiment, the top of the protector body 100 is connected to the cable 110, the protector body 100 is fixedly installed with a fixing plate 120, the side of the fixing plate 120 is provided with a placement rack 130, and the cable 110 is fixedly connected with a limiting ring 140 and a limiting block 150 adapted to the placement rack 130.

[0024] Please see Figure 6-9 In order to facilitate the handling of the entire device, in one embodiment, the base 200 has U-shaped grooves 201 at both ends, and U-shaped rods 300 that are slidably connected are installed in the U-shaped grooves 201.

[0025] To facilitate the retraction and extension of the U-shaped rod 300, an adjustment groove 301 is further provided at the end of the U-shaped rod 300. At least one second spring 340 is fixedly installed at the bottom of the adjustment groove 301. A lever 320 is fixedly installed at the upper end of the second spring 340 located in the adjustment groove 301. A limiting protrusion 330 is fixedly installed on the upper surface of the end of the lever 320. An adjustment hole 302 is provided on the top wall of the adjustment groove 301 located directly above the limiting protrusion 330. A limiting groove 202 is provided on the top wall of the U-shaped groove 301 located directly above the adjustment hole 302. The adjustment hole 302 communicates with the limiting groove 202, and the limiting protrusion 330 can slide within the adjustment hole 302 and the limiting groove 202.

[0026] Furthermore, a first spring 310 is fixedly installed between the tail of the U-shaped rod 300 and the bottom of the U-shaped groove 201.

[0027] Although the present invention has been disclosed above, its protection scope is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and all such changes and modifications will fall within the protection scope of the present invention.

Claims

1. A three-phase combined overvoltage protector, characterized in that, The device includes a protector body (100) and a base (200) for mounting the protector body (100). The base (200) has sliding holes (204) on both ends and a bottom groove (203) on the bottom. The sliding holes (204) communicate with the bottom groove (203). The bottom groove (203) has two sets of symmetrically distributed first connecting holes (205) on its sidewall and two sets of symmetrically distributed second connecting holes (206) on its sidewall. Each sliding hole (204) is equipped with a sliding rod (410) that is slidably connected. The end surface of the sliding rod (410) located in the bottom groove (203) is provided with a toothed rack (420). A first rotating rod (460) is rotatably connected between each group of first connecting holes (205), and a second rotating rod (470) is rotatably connected between each group of second connecting holes (206). A first gear (430) is fixedly connected on each first rotating rod (460). The first gear (430) meshes with the corresponding toothed rack (420). A second gear (440) is fixedly connected on the first rotating rod (460), and a third gear (450) is fixedly connected on the second rotating rod (470). The second gear (440) meshes with the corresponding third gear (450). The end of the sliding rod (410) located outside the bottom groove (203) is fixedly connected with a fixing lug (400).

2. The three-phase combined overvoltage protector according to claim 1, characterized in that, One end of the second rotating rod (470) extends out of the second rotating hole, and a rocker arm (480) is fixedly installed on one end of the second rotating rod (470).

3. The three-phase combined overvoltage protector according to claim 1, characterized in that, The top of the protector body (100) is connected to a cable (110), a fixing plate (120) is fixedly installed on the protector body (100), a placement rack (130) is provided on the side of the fixing plate (120), and a limiting ring (140) and a limiting block (150) adapted to the placement rack (130) are fixedly connected to the cable (110).

4. The three-phase combined overvoltage protector according to claim 1, characterized in that, Both ends of the base (200) are provided with U-shaped grooves (201), and each U-shaped groove (201) is equipped with a slidingly connected U-shaped rod (300).

5. The three-phase combined overvoltage protector according to claim 4, characterized in that, An adjustment groove (301) is provided at the end of the U-shaped rod (300). At least one second spring (340) is fixedly installed at the bottom of the adjustment groove (301). A lever (320) is fixedly installed at the upper end of the second spring (340) located in the adjustment groove (301). A limiting protrusion (330) is fixedly installed on the upper surface of the end of the lever (320). An adjustment hole (302) is provided on the top wall of the adjustment groove (301) located directly above the limiting protrusion (330). A limiting groove (202) is provided on the top wall of the U-shaped groove (201) located directly above the adjustment hole (302). The adjustment hole (302) communicates with the limiting groove (202). The limiting protrusion (330) can slide within the adjustment hole (302) and the limiting groove (202).

6. The three-phase combined overvoltage protector according to claim 5, characterized in that, A first spring (310) is fixedly installed between the tail of the U-shaped rod (300) and the bottom of the U-shaped groove (201).

Images