A zinc oxide-based AC surge arrester

Abstract

This utility model discloses an AC surge arrester based on zinc oxide, comprising: a mounting plate and a zinc oxide surge arrester body. A base rod is fixedly mounted on the bottom end of the zinc oxide surge arrester body. A quick-release assembly is provided on the base rod, and a pull pin assembly is provided on the quick-release assembly. The quick-release assembly includes a first spring, with extension blocks fixedly mounted on both ends of the first spring. An installation groove is formed on the base rod, and a slot is formed on the upper surface of the extension block. A second spring is fixedly mounted on the inner wall of the slot, and a pin is fixedly mounted on the top end of the second spring. A pin hole is formed on the lower surface of the mounting plate, and the extension block is slidably mounted on the inner wall of the installation groove. A slot is formed on the upper surface of the mounting plate. This structure effectively facilitates the rapid installation of the zinc oxide surge arrester on high utility poles, shortening installation time, reducing work risks, and providing good performance.

Description

Technical Field

[0001] This utility model relates to the field of AC surge arrester technology, and in particular to an AC surge arrester based on zinc oxide. Background Technology

[0002] Zinc oxide surge arresters are industrial devices that have functions such as current discharge and interruption. They are surge arresters with good protective performance, utilizing the excellent nonlinear volt-ampere characteristics of zinc oxide. The difference between them and traditional surge arresters is that they do not have a discharge gap.

[0003] Currently, zinc oxide surge arresters are mainly fixed and installed using threaded bolts. However, this method has certain drawbacks. Workers have to climb to the top of the utility pole and use a wrench to install the zinc oxide surge arrester onto the mounting plate on the pole. This prolongs the time that workers spend working at heights, greatly increasing the risk and resulting in poor performance. Utility Model Content

[0004] The purpose of this utility model is to provide an AC surge arrester based on zinc oxide. Workers climb to the top of the utility pole and use a wrench to install the zinc oxide surge arrester onto the mounting plate on the pole, which prolongs the time that workers spend working at heights and greatly increases the risk of accidents.

[0005] To achieve the above objectives, a zinc oxide-based AC surge arrester is provided, comprising: a mounting plate and a zinc oxide surge arrester body, wherein a base rod is fixedly mounted on the bottom end of the zinc oxide surge arrester body, a quick-connect assembly is provided on the base rod, and a pull pin assembly is provided on the quick-connect assembly;

[0006] The quick-installation assembly includes a first spring, with extension blocks fixedly installed at both ends of the first spring. The base rod has an installation groove, and the upper surface of the extension block has a slot. A second spring is fixedly installed on the inner wall of the slot, and a pin is fixedly installed at the top of the second spring. The lower surface of the mounting plate has a pin hole.

[0007] According to the zinc oxide-based AC surge arrester, the extension block is slidably mounted on the inner wall of the mounting groove, and the upper surface of the mounting plate is provided with a slot.

[0008] According to the zinc oxide-based AC surge arrester, a positioning rod is fixedly installed on the lower surface of the base rod, and mounting holes are provided on the outer wall of the mounting plate.

[0009] According to the zinc oxide-based AC surge arrester, the side wall of the base rod is provided with an inclined groove.

[0010] According to the zinc oxide-based AC surge arrester, the pull pin assembly includes a pull block, a pull rod is fixedly mounted on the upper surface of the pull block, and the top end of the pull rod is fixedly mounted on the lower surface of the pin.

[0011] According to the zinc oxide-based AC surge arrester, positioning beads are provided on both sides of the pin, and a first insertion hole is provided on the side wall of the slot.

[0012] According to the zinc oxide-based AC surge arrester, a second insertion hole is provided on the side wall of the insertion hole, and a groove is provided on the outer wall of the extension block.

[0013] The above-mentioned solution has the following beneficial effects:

[0014] In this invention, a quick-installation component is provided, which effectively enables the rapid installation of zinc oxide surge arresters onto the mounting plate at a high position on the utility pole. This significantly shortens the installation time of the zinc oxide surge arresters, eliminates the need for workers to be at a high position on the utility pole for extended periods, reduces the risk of accidents, and provides excellent performance.

[0015] In this invention, the addition of a pull pin assembly facilitates the quick disassembly of the zinc oxide surge arrester mounted on the mounting plate, enabling rapid replacement of damaged zinc oxide surge arresters and resulting in good performance.

[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0018] Figure 1 This is a perspective view of an AC surge arrester based on zinc oxide according to this utility model;

[0019] Figure 2 This is an exploded view of an AC surge arrester based on zinc oxide according to this utility model;

[0020] Figure 3 This is a diagram showing the combination of the base rod and quick-connect assembly of an AC surge arrester based on zinc oxide according to this utility model;

[0021] Figure 4 This is a perspective view of a quick-installation assembly for an AC surge arrester based on zinc oxide, according to this utility model.

[0022] Figure 5 This is a three-dimensional view of the back of an AC surge arrester based on zinc oxide according to this utility model;

[0023] Figure 6This is a perspective view of a pull pin assembly for an AC surge arrester based on zinc oxide, according to this utility model.

[0024] Figure 7 This is an enlarged view of point A in an AC surge arrester based on zinc oxide according to this utility model;

[0025] Figure 8 This is an enlarged view of point B of an AC surge arrester based on zinc oxide according to this utility model.

[0026] Legend:

[0027] 1. Mounting plate; 2. Zinc oxide surge arrester body; 3. Mounting hole; 4. Quick-release assembly; 41. Extension block; 42. First spring; 43. Pin; 44. Slot; 45. Second spring; 46. Pin hole; 47. Positioning rod; 48. Slot; 5. Pull pin assembly; 51. Pull block; 52. Groove; 53. Positioning bead; 54. First insertion hole; 55. Pull rod; 56. Second insertion hole; 6. Base rod; 7. Slanted groove. Detailed Implementation

[0028] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0029] Reference Figure 1-8 This utility model embodiment provides an AC surge arrester based on zinc oxide, which includes: a mounting plate 1 and a zinc oxide surge arrester body 2. A bottom rod 6 is fixedly installed at the bottom end of the zinc oxide surge arrester body 2. A quick-connect assembly 4 is provided on the bottom rod 6, and a pull pin assembly 5 is provided on the quick-connect assembly 4.

[0030] The quick-release assembly 4 includes a first spring 42, which enables the extension block 41 to return to its original position. The extension block 41 is fixedly mounted on both ends of the first spring 42. A mounting groove is provided on the bottom rod 6 to mount the extension block 41. The extension block 41 is slidably mounted on the inner wall of the mounting groove. A slot 44 is provided on the upper surface of the extension block 41 for mounting a second spring 45. The second spring 45 is fixedly mounted on the inner wall of the slot 44, and its top end is fixed... A pin 43 is fixedly installed to enhance the installation and fixation of the zinc oxide surge arrester. A pin hole 46 is opened on the lower surface of the mounting plate 1 for inserting the pin 43. A slot 48 is opened on the upper surface of the mounting plate 1. A positioning rod 47 is fixedly installed on the lower surface of the bottom rod 6. An installation hole 3 is opened on the outer wall of the mounting plate 1. A second spring 45 is fitted on the outside of the positioning rod 47. A slanted groove 7 is opened on the side wall of the bottom rod 6 to facilitate personnel to pull down the pull block 51.

[0031] The pull pin assembly 5 includes a pull block 51, a pull rod 55 fixedly mounted on the upper surface of the pull block 51, the top end of the pull rod 55 fixedly mounted on the lower surface of the pin 43, the pull rod 55 passing through the through hole at the bottom of the slot 44, positioning beads 53 on both sides of the pin 43, a first insertion hole 54 is opened on the side wall of the slot 44, the first insertion hole 54 and the positioning bead 53 cooperate to lock the pin 43 in the slot 44, a second insertion hole 56 is opened on the side wall of the pin hole 46, the second insertion hole 56 and the positioning bead 53 cooperate to lock the pin 43 in the pin hole 46. The self-locking is achieved by the cooperation of the positioning bead 53, the first insertion hole 54 and the second insertion hole 56, which makes it easy for workers to install and remove with one hand and reduces the difficulty of installation. A groove 52 is opened on the outer wall of the extension block 41.

[0032] Working principle: After aligning the bottom rod 6 installed at the bottom end of the zinc oxide surge arrester body 2 with the mounting hole 3, insert it. The positioning rod 47 installed on the lower surface of the bottom rod 6 is inserted into the slot 48. The extension block 41 set on the bottom rod 6 is first squeezed by the inner wall of the mounting hole 3, and the extension block 41 retracts into the interior of the bottom rod 6. The pin 43 on the extension block 41 is squeezed into the slot 44 through the inclined groove 7. The second spring 45 in the slot 44 is compressed and forms a compressed state. At the same time, the extension block 41 compresses the first spring. Spring 42 compresses the extension block 41, causing it to be in a compressed state. After the extension block 41 is removed from the mounting hole 3, the elastic force of the first spring 42 causes the extension block 41 to pop out from the bottom rod 6, thus resetting the extension block 41 and locking it at the bottom of the mounting plate 1. At the same time, the pin 43 pops out from the slot 44 and is directly inserted into the pin hole 46 at the bottom of the mounting plate 1. The positioning beads 53 on both sides of the pin 43 are inserted into the second insertion hole 56 to enhance the fixing effect.

[0033] When the zinc oxide surge arrester needs to be replaced, the operator only needs to pull down the pull block 51. The pull block 51 drives the pin 43 to retract into the slot 44 through the pull rod 55. The positioning beads 53 on both sides of the pin 43 are removed from the second insertion hole 56 and inserted into the first insertion hole 54 in the slot 44. At the same time, it compresses the second spring 45, so that the second spring 45 is in a compressed state. After the pin 43 is removed from the pin hole 46, the symmetrical extension blocks 41 on the side wall of the bottom rod 6 are squeezed with two fingers. The extension blocks 41 retract into the interior of the bottom rod 6, and the zinc oxide surge arrester body 2 can be moved upward, so that the bottom rod 6 at the bottom end of the zinc oxide surge arrester body 2 can be removed from the mounting hole 3, thus completing the disassembly of the zinc oxide surge arrester.

[0034] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A zinc oxide based AC surge arrester, comprising: Mounting plate (1) and zinc oxide surge arrester body (2), characterized in that a bottom rod (6) is fixedly installed at the bottom end of the zinc oxide surge arrester body (2), a quick-installation assembly (4) is provided on the bottom rod (6), and a pull pin assembly (5) is provided on the quick-installation assembly (4). The quick-installation assembly (4) includes a first spring (42), with extension blocks (41) fixedly installed at both ends of the first spring (42). The bottom rod (6) has an installation groove, and the upper surface of the extension block (41) has a slot (44). A second spring (45) is fixedly installed on the inner wall of the slot (44), and a pin (43) is fixedly installed at the top of the second spring (45). The lower surface of the mounting plate (1) has a pin hole (46).

2. The AC surge arrester based on zinc oxide according to claim 1, characterized in that, The extension block (41) is slidably installed on the inner wall of the mounting groove, and the upper surface of the mounting plate (1) is provided with a slot (48).

3. A zinc oxide based AC surge arrester according to claim 1, characterized in that, A positioning rod (47) is fixedly installed on the lower surface of the bottom rod (6), and an installation hole (3) is provided on the outer wall of the mounting plate (1).

4. A zinc oxide based AC surge arrester according to claim 1, characterized in that, The bottom rod (6) has a slanted groove (7) on its side wall.

5. A zinc oxide based AC surge arrester according to claim 1, characterized in that, The pull pin assembly (5) includes a pull block (51), on the upper surface of which a pull rod (55) is fixedly installed, and the top end of the pull rod (55) is fixedly installed on the lower surface of the pin (43).

6. A zinc oxide based AC surge arrester according to claim 5, characterized in that Positioning beads (53) are provided on both sides of the pin (43), and a first insertion hole (54) is provided on the side wall of the slot (44).

7. A zinc oxide based AC surge arrester according to claim 1, characterized in that, A second insertion hole (56) is provided on the side wall of the insertion hole (46), and a groove (52) is provided on the outer wall of the extension block (41).

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