CN215377097U

CN215377097U - 35kV transformer terminal with lightning-arrest structure is convenient for maintain

Info

Publication number: CN215377097U
Application number: CN202122070433.2U
Authority: CN
Inventors: 田大军
Original assignee: Zhenjiang Tianyi Electric Co ltd
Current assignee: Zhenjiang Tianyi Electric Co ltd
Priority date: 2021-08-30
Filing date: 2021-08-30
Publication date: 2021-12-31
Anticipated expiration: 2031-08-30

Abstract

The utility model discloses a 35kV transformer terminal with a lightning protection structure and convenient maintenance, which comprises a lightning protection mechanism and a drainage mechanism, wherein the drainage mechanism is movably arranged at the top of the lightning protection mechanism, and comprises a sleeve, a drainage needle, a poking pin, a shaft lever, a locking part, a buckle, a corner groove, a toggle joint, a synchronous rod and a pull rod. The problem of current arrester meet can make transmission of electricity wire produce the swing by a wide margin when great horizontal wind-force in the open-air environment is solved, because the arrester bottom is the rigid connection state, when wind-force reaches certain speed and leads to wire pendulum power too big, the technical problem that the arrester fracture destroys the incident easily appears, a 35kV transformer terminal that has lightning-arrest structure and is convenient for maintain is provided, when being convenient for carry out dismouting maintenance to the arrester component part, strengthen the connection stability between each part and make the structure wholly possess more excellent structural rigidity, transformer main part and base member's flexible packing ring give the anti-seismic buffer ability that the arrester counter balanced horizontal wind-force in addition.

Description

35kV transformer terminal with lightning-arrest structure is convenient for maintain

Technical Field

The utility model relates to the technical field of 35kV transformer terminals, in particular to a 35kV transformer terminal with a lightning protection structure and convenient maintenance.

Background

The intelligent terminal of the power transformer belongs to important key equipment in the link of an intelligent substation in the construction of an intelligent power grid, the traditional function-oriented measurement and control and protection device is gradually developed towards an object-oriented intelligent assembly, and the development direction of the device is to realize function integration, structure integration, acquisition digitization and control networking of measurement, control and protection functions oriented to power elements.

The conventional transformer terminal equipment has the following common problems: the intelligent terminal of the power transformer requires to install the lightning arrester due to safety requirements, but when the existing lightning arrester meets large transverse wind power in a field environment, a transmission wire can swing to a large extent, and due to the fact that the bottom of the lightning arrester is in a rigid connection state, when the wind power reaches a certain speed, the swinging power of the wire is too large, or when the lightning arrester is poor in strength due to factors such as production quality or aging, safety accidents such as breakage and damage of the lightning arrester are prone to occurring.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a 35KV transformer terminal with a lightning protection structure and convenient maintenance, which aims to solve the problem of use requirements of safety accidents such as breakage and damage of the lightning protector and the like easily caused by the fact that the bottom of the lightning protector is in a rigid connection state when the wire swinging force is too large due to the fact that the existing lightning protector meets large transverse wind force in a field environment and the lightning protector is in a rigid connection state when the wind force reaches a certain speed or the lightning protector is poor in strength due to factors such as production quality or aging and the like.

In order to achieve the purpose, the utility model provides the following technical scheme: including lightning-arrest mechanism and drainage mechanism, lightning-arrest mechanism top movable mounting has drainage mechanism, drainage mechanism includes sleeve, drainage needle, dials round pin, axostylus axostyle, retaining member, buckle, corner groove, toggle, synchronizing bar and pull rod, the drainage needle is installed at the sleeve top, and sleeve both sides inner wall installs and dials the round pin, sleeve bottom both sides are provided with the axostylus axostyle, and axostylus axostyle bottom end-to-end mounting has the retaining member, the buckle has been seted up at the retaining member top, the corner groove has been seted up to axostylus axostyle side end face, and axostylus axostyle top input installs the toggle, the toggle inboard is connected with the synchronizing bar, and the synchronizing bar middle-end top is connected with the pull rod.

Preferably, the poking pins are symmetrically arranged on two sides of the bottom of the sleeve, the shaft lever is movably arranged on the inner side of the bottom of the sleeve, the locking member and the shaft lever are of an integrated structure, and the position of the buckle arranged outside the locking member protrudes out of the side wall of the sleeve.

Preferably, the size of the corner groove on the side end face of the shaft lever is matched with the shape of the toggle pin, the shaft levers on the two sides are distributed in bilateral symmetry by taking the pull rod as a vertical symmetry axis, and the pull rod is in transmission connection with the shaft levers on the two sides through the synchronizing rod.

Preferably, the lightning protection mechanism comprises a transformer main body, a base and pull rings, wherein the base is installed at the top of the transformer main body, and the pull rings are symmetrically installed on two sides of the top of the base.

Preferably, the lightning protection mechanism further comprises an elastic rope, a zinc oxide arrester and a top cover, the elastic rope is connected to the inner side of the top of the pull ring, the pull ring is connected with the buckle through the elastic rope, the zinc oxide arrester is installed at the top of the middle end of the base, the top cover is installed on the end face of the top of the zinc oxide arrester, and the diameter of the end face of the top cover, which is in the shape of a bulge and has a large diameter, is identical with the distance between the shaft levers on the two sides.

Preferably, there is a stabilizing mechanism at both sides of the base, the stabilizing mechanism includes a press rod, a bearing seat, an adjusting seat and a flexible gasket, the bearing seat is fixedly installed at the external end face of the press rod, the inner cavity at the bottom of the press rod is provided with the adjusting seat, the distance between the press rod and the adjusting seat is consistent with the thickness of the base, and the opening end face of the adjusting seat is connected with the flexible gasket.

Preferably, stabilizing mean still includes and adjusts frame, thread pole, spring and nut, the outside terminal surface fixed mounting of regulation seat has the regulation frame, and adjusts frame movable mounting inside the bearing frame, the inside thread pole that has run through of depression bar, and the bottom cover of thread pole is equipped with the spring, the nut is equipped with to thread pole top cover.

Compared with the prior art, the utility model has the beneficial effects that: the technical problem of safety accidents such as breakage and damage of the lightning arrester easily occur when the lightning arrester is in a rigid connection state due to the fact that the bottom of the lightning arrester is in a rigid connection state when wind power reaches a certain speed to cause overlarge swinging force of a wire, or the lightning arrester is poor in strength due to factors such as production quality or aging and the like is solved, the 35kV transformer terminal with the lightning protection structure is convenient to maintain is provided, the lightning arrester assembly part is convenient to disassemble, assemble and maintain, meanwhile, connection stability among all parts is strengthened, the structure is enabled to integrally have better structural rigidity, and in addition, the flexible gaskets of the transformer main body and the base part endow the lightning arrester with anti-seismic buffer capacity for resisting the transverse wind power.

1. According to the utility model, through the arrangement of the lightning protection mechanism, the main body part of the lightning protection mechanism consists of the base and the zinc oxide lightning arrester arranged on the top of the base, the nonlinear volt-ampere characteristic of the zinc oxide valve plate is very excellent, so that only hundreds of microamperes of current can pass through the zinc oxide lightning arrester under normal working voltage, the zinc oxide lightning arrester is conveniently designed into a gapless structure, and the zinc oxide lightning arrester has the characteristics of good protection performance, light weight and small size;

2. the utility model is convenient for the whole disassembly and transportation of the lightning protection component by arranging the drainage mechanism, the traditional lightning protection component is not firmly connected, the utility model adopts the application of the drainage mechanism, a user ties the top end surface of the elastic rope in a bayonet in advance, then pulls the pull rod upwards to enable the pull rod to be positioned in the inner cavity of the sleeve and ascend, the pull rod realizes the synchronous lifting of shaft levers at two sides at the bottom by the toggle joint at the output end of the synchronous rod, the shaft lever is driven by the corner groove arranged at the side end surface of the shaft lever by the poking pin fixed at the bottom of the sleeve so as to realize the rotation of the shaft lever in the longitudinal lifting stroke, the locking piece originally protruding out of the outer wall of the sleeve is rotationally tightened, the output end of the locking piece realizes the locking of the outer edge of the zinc oxide lightning arrester, the sleeve is tightly connected with the zinc oxide lightning arrester by the top cover, the elastic rope originally tied in the outer buckle realizes the tensioning of the elastic rope in the rotation stroke of the locking piece, the lightning is led into the zinc oxide lightning arrester through a drainage needle at the top of the sleeve by arranging the drainage mechanism, and finally the lightning current is led into the ground through a piezoresistor arranged in the zinc oxide lightning arrester;

3. through the arrangement of the stabilizing mechanism, the rigid connection between the traditional transformer main body and the base can lead the zinc oxide arrester to be unstable in a windy environment, through the arrangement of the stabilizing mechanism, a user firstly attaches the pressure lever to the side end face of the top of the base, then holds the pressure lever by hand and pulls the adjusting seat, so that the outer side of the adjusting seat and the adjusting frame of the integrated structure are transversely displaced in the bearing seat, the flexible gasket arranged on the inner side of the adjusting seat is stuffed in the structural gap at the joint of the base and the transformer main body, and a user can rotate the nut, the locking of the pressure rod to the end faces of the two sides of the base is realized in the rotation stroke of the screw tooth rod, the spring is compressed, the pressure rod is rapidly reset and released to position and compress the base when the spring is convenient for follow-up disassembly and maintenance, and the zinc oxide arrester is endowed with the anti-seismic buffering capacity of resisting transverse wind power by the structural arrangement of the flexible washer.

Drawings

Fig. 1 is a schematic front view of a lightning protection mechanism according to the present invention;

FIG. 2 is a schematic view of the front view of the internal structure of the drainage mechanism of the present invention;

fig. 3 is a schematic front view of the stabilizing mechanism of the present invention.

In the figure: 1. a lightning protection mechanism; 101. a transformer body; 102. a base; 103. a pull ring; 104. an elastic cord; 105. a zinc oxide arrester; 106. a top cover; 2. a drainage mechanism; 201. A sleeve; 202. a drainage needle; 203. a toggle pin; 204. a shaft lever; 205. a locking member; 206. Buckling; 207. a corner groove; 208. a toggle joint; 209. a synchronization lever; 210. a pull rod; 3. A stabilizing mechanism; 301. a pressure lever; 302. a bearing seat; 303. an adjusting seat; 304. a flexible gasket; 305. an adjusting frame; 306. a threaded rod; 307. a spring; 308. and (4) a nut.

Detailed Description

As shown in fig. 1, a 35KV transformer terminal with a lightning protection structure for convenient maintenance, the lightning protection mechanism 1 includes a transformer main body 101, a base 102 and a pull ring 103, the base 102 is installed on the top of the transformer main body 101, the rigid connection between the transformer main body 101 and the base 102 can cause the zinc oxide arrester 105 to be unstable in windy environment, the pull rings 103 are symmetrically installed on two sides of the top of the base 102, the lightning protection mechanism 1 further includes a flexible cord 104, a zinc oxide arrester 105 and a top cover 106, the flexible cord 104 is connected to the inner side of the top of the pull ring 103, the pull ring 103 is connected to a buckle 206 through the flexible cord 104, the pull ring 103 on two sides of the top of the base 102 is structured to connect the lightning protection mechanism 1 and the current guiding mechanism 2 through the flexible cord 104, which can generate a certain resistance to the swing of the zinc oxide arrester 105, reduce the swing amplitude, and avoid the zinc oxide arrester 105 from being pulled and damaged, the zinc oxide arrester 105 can be always in a tension pre-tightening state by the tensioning of the elastic rope 104, a certain supporting force is formed on the zinc oxide arrester 105, stronger crosswind can be blocked, the zinc oxide arrester 105 is installed at the top of the middle end of the base 102, the top cover 106 is installed on the top end face of the zinc oxide arrester 105, the diameter of the large-diameter end face of the outer edge of the top cover 106 is matched with the distance between the shaft rods 204 on the two sides, the main body of the lightning protection mechanism 1 is composed of the base 102 and the zinc oxide arrester 105 installed at the top of the base 102, the nonlinear volt-ampere characteristic of the zinc oxide valve plate is very good, only hundreds of microamperes of current passes through the zinc oxide arrester under normal working voltage, the zinc oxide arrester is conveniently designed into a gapless structure, and the zinc oxide arrester has the characteristics of good protection performance, light weight and small size.

As shown in fig. 2, a current guiding mechanism 2 is movably mounted at the top of the lightning protection mechanism 1, the current guiding mechanism 2 includes a sleeve 201, a current guiding pin 202, a poking pin 203, a shaft rod 204, a locking member 205, a buckle 206, a corner groove 207, a toggle 208, a synchronizing rod 209 and a pull rod 210, the current guiding pin 202 is mounted at the top of the sleeve 201, the elastic cord 104 tied inside the external buckle 206 originally achieves tensioning of the elastic cord 104 in the rotation stroke of the locking member 205, lightning is guided into the zinc oxide arrester 105 through the current guiding pin 202 at the top of the sleeve 201 by the arrangement of the current guiding mechanism 2, the lightning current is guided into the ground through a piezoresistor built in the zinc oxide arrester 105, the poking pins 203 are mounted on the inner walls at both sides of the sleeve 201, the shaft rods 204 are disposed at both sides of the bottom of the sleeve 201, the locking member 205 is mounted on the end surface at the bottom of the shaft rod 204, the buckle 206 is disposed at the top of the shaft rod 205, the poking pins 203 are symmetrically disposed at both sides of the bottom of the sleeve 201, the shaft 204 is movably arranged at the inner side of the bottom of the sleeve 201, an integral structure is arranged between the locking member 205 and the shaft 204, a buckle 206 at the outer part of the locking member 205 is arranged and protrudes out of the side wall of the sleeve 201, the shaft 204 is driven by a toggle pin 203 fixed at the bottom of the sleeve 201 to rotate in a longitudinal lifting stroke, the locking member 205 originally protruding out of the outer wall of the sleeve 201 is rotated and tightened, the outer edge of the zinc oxide arrester 105 is locked by the output end of the locking member 205, the sleeve 201 is tightly connected with the zinc oxide arrester 105 through a top cover 106, the end surface of the shaft 204 is arranged with a toggle groove 207, the input end at the top of the shaft 204 is provided with a toggle 208, and the inner side of the toggle 208 is connected with a synchronous rod 209, through the application of the drainage mechanism 2, a user puts the end surface at the top of the elastic rope 104 into the buckle 206 in advance and then pulls the pull rod 210 upwards, the pull rod 210 is located in the inner cavity of the sleeve 201 and ascends, the pull rod 210 achieves synchronous lifting of the shaft rods 204 on two sides of the bottom through toggle joints 208 at the output end of a synchronizing rod 209, the size of a corner groove 207 formed in the side end face of the shaft rod 204 is matched with the shape of the toggle pin 203, the shaft rods 204 on two sides are distributed in bilateral symmetry by taking the pull rod 210 as a vertical symmetry axis, the pull rod 210 is in transmission connection with the shaft rods 204 on two sides through the synchronizing rod 209, and the top of the middle end of the synchronizing rod 209 is connected with the pull rod 210.

As shown in fig. 3, the stabilizing mechanism 3 is movably mounted on both sides of the base 102, the stabilizing mechanism 3 includes a pressing rod 301, a bearing seat 302, an adjusting seat 303 and a flexible washer 304, the outer end surface of the pressing rod 301 is fixedly mounted with the bearing seat 302, and the inner cavity of the bottom of the pressing rod 301 is provided with the adjusting seat 303, the distance between the pressing rod 301 and the adjusting seat 303 is consistent with the thickness of the base 102, and the opening end surface of the adjusting seat 303 is connected with the flexible washer 304, the stabilizing mechanism 3 further includes an adjusting frame 305, a threaded rod 306, a spring 307 and a nut 308, the outer end surface of the adjusting seat 303 is fixedly mounted with the adjusting frame 305, through the arrangement of the stabilizing mechanism 3, a user firstly attaches the pressing rod 301 to the end surface of the top of the base 102, and then holds and pulls the adjusting seat 303 to make the outer side of the adjusting seat 303 and the adjusting frame 305 of the one-piece structure to be located in the bearing seat 302 for transverse displacement, and fills the flexible washer 304 mounted on the inner side of the adjusting seat 303 to the structural gap at the connection between the base 102 and the transformer body 101, the adjusting frame 305 is movably installed inside the bearing seat 302, the threaded rod 306 penetrates through the inside of the pressing rod 301, the spring 307 is sleeved at the bottom of the threaded rod 306, the nut 308 is sleeved at the top of the threaded rod 306, a user can lock the end faces of the two sides of the base 102 by the pressing rod 301 in the rotating process of the threaded rod 306 by rotating the nut 308, the spring 307 is compressed, so that the pressing rod 301 can be quickly reset to release positioning and pressing on the base 102 during subsequent disassembly and maintenance, and the anti-seismic buffering capacity of transverse wind power is endowed to the zinc oxide arrester 105 through the structural arrangement of the flexible washer 304.

The working principle is as follows: when the 35KV transformer terminal with the lightning protection structure and convenient to maintain is used, the rigid connection between the traditional transformer main body 101 and the base 102 can lead the zinc oxide lightning arrester 105 to be unstable in a windy environment, through the arrangement of the stabilizing mechanism 3, a user firstly attaches the pressure lever 301 to the side end face of the top of the base 102, then holds and pulls the adjusting seat 303 by hand, so that the outer side of the adjusting seat 303 and the adjusting frame 305 with an integrated structure are positioned in the bearing seat 302 for transverse displacement, the flexible gasket 304 arranged on the inner side of the adjusting seat 303 is stuffed in the structural gap at the connection part of the base 102 and the transformer main body 101, the user realizes the locking of the pressure lever 301 to the side end face of the base 102 in the rotation stroke of the screw tooth lever 306 through the rotating nut 308, the spring 307 is compressed, so that the pressure lever 301 can be quickly reset and released to position and press the base 102 during subsequent disassembly and maintenance, the flexible gasket 304 is structurally provided with an anti-seismic buffer capacity for enabling the zinc oxide arrester 105 to resist transverse wind power, the main body part of the lightning protection mechanism 1 is composed of the base 102 and the zinc oxide arrester 105 arranged on the top of the base, the nonlinear volt-ampere characteristic of a zinc oxide valve plate is very excellent, so that only hundreds of microamperes of current can pass through the flexible gasket under normal working voltage, the flexible gasket is conveniently designed into a gapless structure, and the flexible gasket has the characteristics of good protection performance, light weight and small size, the lightning protection mechanism 1 and the current guiding mechanism 2 which are connected through the elastic rope 104 are structurally arranged on the pull rings 103 on two sides of the top of the base 102, so that certain resistance can be generated to the swinging of the zinc oxide arrester 105, the swinging amplitude of the zinc oxide arrester 105 is reduced, the zinc oxide arrester 105 is prevented from being pulled, bent and damaged, the zinc oxide arrester 105 can be always in a tension pre-tightening state due to the tension of the elastic rope 104, and a certain supporting force is formed on the zinc oxide arrester 105, can block stronger crosswind, for the holistic dismantlement transportation of lightning-arrest subassembly, traditional lightning-arrest subassembly is connected firmly inadequately, the utility model discloses an application of drainage mechanism 2, the user is in advance with stretch cord 104 top end system in buckle 206, later through pulling pull rod 210 upwards, make pull rod 210 be located sleeve 201 inner chamber and rise, pull rod 210 realizes the synchronous lifting of bottom both sides axostylus axostyle 204 through the toggle 208 of synchronizing bar 209 output, the drive of the corner groove 207 that set up to the axostylus axostyle 204 side end face through the fixed round pin 203 in sleeve 201 bottom here, make axostylus axostyle 204 realize rotatoryly in vertical lifting stroke, will originally outstanding sleeve 201 outer wall's retaining member 205 is rotatory to be tightened up, retaining member 205 output realizes the locking to zinc oxide arrester 105 outer edge, make sleeve 201 pass through top cap 106 and zinc oxide arrester 105 fastening connection, originally, this stretch cord 104 that is tied in outside buckle 206 in realizes the tensioning of stretch cord 104 in the rotatory stroke of retaining member 205 The lightning is guided to the zinc oxide arrester 105 through the top current guiding pin 202 of the sleeve 201 by the arrangement of the current guiding mechanism 2, and finally the lightning current is guided to the ground through the piezoresistor built in the zinc oxide arrester 105.

Claims

1. The utility model provides a 35kV transformer terminal with lightning-arrest structure is convenient for maintain, includes lightning-arrest mechanism (1) and drainage mechanism (2), its characterized in that, lightning-arrest mechanism (1) top movable mounting has drainage mechanism (2), drainage mechanism (2) include sleeve (201), drainage needle (202), stir round pin (203), axostylus axostyle (204), retaining member (205), buckle (206), corner groove (207), toggle (208), synchronizing bar (209) and pull rod (210), drainage needle (202) are installed to sleeve (201) top, and stir round pin (203) are installed to sleeve (201) both sides inner wall, sleeve (201) bottom both sides are provided with axostylus axostyle (204), and retaining member (205) bottom terminal surface installation, buckle (206) have been seted up at retaining member (205) top, corner groove (207) have been seted up to axostylus axostyle (204) side terminal surface, and a toggle joint (208) is installed at the input end of the top of the shaft rod (204), a synchronous rod (209) is connected to the inner side of the toggle joint (208), and a pull rod (210) is connected to the top of the middle end of the synchronous rod (209).

2. The 35kV transformer terminal with the lightning protection structure and convenient to maintain according to claim 1, wherein the poking pins (203) are symmetrically arranged on two sides of the bottom of the sleeve (201), the shaft rod (204) is movably arranged on the inner side of the bottom of the sleeve (201), the locking member (205) and the shaft rod (204) are of an integrated structure, and an external buckle (206) of the locking member (205) protrudes out of the side wall of the sleeve (201).

3. The 35kV transformer terminal with the lightning protection structure and convenient maintenance according to claim 1, wherein the side end surface corner grooves (207) of the shaft rod (204) are provided with a size matched with the shape of the toggle pin (203), the shaft rods (204) at two sides are distributed in bilateral symmetry with the pull rod (210) as a vertical symmetry axis, and the pull rod (210) is in transmission connection with the shaft rods (204) at two sides through the synchronization rod (209).

4. The 35kV transformer terminal with a lightning protection structure and convenient maintenance according to claim 1, wherein the lightning protection mechanism (1) comprises a transformer main body (101), a base (102) and pull rings (103), the base (102) is mounted on the top of the transformer main body (101), and the pull rings (103) are symmetrically mounted on two sides of the top of the base (102).

5. The 35kV transformer terminal with the lightning protection structure and convenient to maintain according to claim 4, wherein the lightning protection mechanism (1) further comprises a bungee cord (104), a zinc oxide arrester (105) and a top cover (106), the bungee cord (104) is connected to the inner side of the top of the pull ring (103), the pull ring (103) is connected with the buckle (206) through the bungee cord (104), the zinc oxide arrester (105) is installed at the top of the middle end of the base (102), the top cover (106) is installed on the top end face of the zinc oxide arrester (105), and the diameter of the outer edge of the top cover (106) is matched with the distance between the shaft rods (204) on two sides along the large-diameter protruding end face.

6. The 35kV transformer terminal with the lightning protection structure and convenient to maintain according to claim 4, wherein a stabilizing mechanism (3) is movably mounted on two side sides of the base (102), the stabilizing mechanism (3) comprises a pressing rod (301), a bearing seat (302), an adjusting seat (303) and a flexible gasket (304), the bearing seat (302) is fixedly mounted on the outer end face of the pressing rod (301), the adjusting seat (303) is arranged in an inner cavity at the bottom of the pressing rod (301), the distance between the pressing rod (301) and the adjusting seat (303) is consistent with the thickness of the base (102), and the flexible gasket (304) is connected to the opening end face of the adjusting seat (303).

7. The 35kV transformer terminal with the lightning protection structure convenient to maintain according to claim 6, wherein the stabilizing mechanism (3) further comprises an adjusting frame (305), a threaded rod (306), a spring (307) and a nut (308), the adjusting frame (305) is fixedly installed on the outer end face of the adjusting seat (303), the adjusting frame (305) is movably installed inside the bearing seat (302), the threaded rod (306) penetrates through the inside of the pressing rod (301), the spring (307) is sleeved at the bottom of the threaded rod (306), and the nut (308) is sleeved at the top of the threaded rod (306).