CN218160142U

CN218160142U - Isolating switch with earth leakage protection

Info

Publication number: CN218160142U
Application number: CN202222734448.9U
Authority: CN
Inventors: 万盼盼; 万丹妮
Original assignee: Shenzhen Zhilian Cloud Control Technology Co ltd
Current assignee: Shenzhen Zhilian Cloud Control Technology Co ltd
Priority date: 2022-10-17
Filing date: 2022-10-17
Publication date: 2022-12-27
Anticipated expiration: 2032-10-17

Abstract

The utility model discloses a take earth leakage protection's isolator belongs to power energy equipment technical field, including spacing base, the equal fixedly connected with mount pad of two spacing base front and back ends, spacing base upper end fixedly connected with insulator, insulator upper end fixedly connected with fixed plate, the inboard fixedly connected with static contact in fixed plate upper end, the moving contact is installed in the static contact outside, the problem of the emergence electric shock that leads to because staff direct contact isolator body has been solved, it separates with the static contact to have the moving contact that can realize on with isolator through indirect contact, at first use the spanner to dismantle coupling mechanism, then inhale the bolt magnetism through insulating disassembly body and demolish, and upwards ejecting with the second connecting strip through ejection mechanism, make the moving contact separate with the static contact, effectively avoid staff and isolator direct contact, effectively carry out earth leakage protection, improve isolator's security.

Description

Isolating switch with earth leakage protection

Technical Field

The utility model relates to an electric power energy equipment technical field, concretely relates to take earth leakage protection's isolator.

Background

The isolating switch is a switch device mainly used for isolating power supply and switching operation and connecting and cutting off small current circuit, and has no arc-extinguishing function, and when the isolating switch is in open position, the contacts have insulation distance meeting the requirements and obvious cut-off mark, and when the isolating switch is in closed position, it can bear current under the condition of normal loop and current under the abnormal condition in the defined time.

The device is characterized in that a spring is arranged on an insulating terminal, so that when a moving contact is contacted with a fixed contact, one fixed contact can rotate along with the moving contact, and the problem that the fixed contact is bent or deformed due to pressure if the moving contact has a large stroke is solved; and when the moving contact loses external force, the spring drives the static contact to firmly abut against the moving contact, so that the device does not need to utilize two clamping plates to contact with the static contact, the part which is easy to be electrically corroded is transferred, and the loss speed of the two clamping plates is reduced.

However, when the isolating switch is used and is manually disassembled or maintained by an operator, the parts at the joint of the static contact and the movable contact need to be manually disassembled and separated, and the operator directly contacts the isolating switch body, so that the danger of electric shock and the like is easily caused, and the safety of the isolating switch is reduced.

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model provides a take earth leakage protection's isolator to solve among the prior art because the problem of the emergence electric shock that staff direct contact isolator body and lead to.

In order to achieve the above object, the present invention provides the following technical solutions:

an isolating switch with leakage protection comprises two limiting bases, wherein the front ends and the rear ends of the two limiting bases are fixedly connected with mounting bases, insulators are fixedly connected to the upper ends of the limiting bases, a fixing plate is fixedly connected to the upper end of each insulator, a fixed contact is fixedly connected to the inner side of the upper end of the fixing plate, a moving contact is mounted on the outer side of the fixed contact, the left side of the moving contact is hinged to the left side of the fixed contact, mounting holes are formed in the right side of the inner portion of the fixed contact and the right end of the inner portion of the moving contact, a connecting mechanism is mounted in each mounting hole, an insulation disassembling mechanism is arranged on the right side of the rear end of the fixing plate, the moving contact and the fixed contact on the isolating switch can be separated through indirect contact, the connecting mechanism is disassembled through a wrench, then bolts are magnetically disassembled through the insulation disassembling mechanism, a second connecting strip is ejected upwards through an ejecting mechanism, the moving contact and the fixed contact are separated, direct contact between workers and the isolating switch is effectively avoided, leakage protection is effectively carried out, and safety of the isolating switch is improved.

Further, coupling mechanism includes fastening bolt, bolt head, nut and insulating pad, and is a plurality of the internally mounted of mounting hole has fastening bolt, the fastening bolt rear end is provided with the bolt head, bolt head outside front end threaded connection has the nut, nut and bolt head outside all are provided with insulating pad, and during the use, the staff can manually fix two spanners in the bolt head and the nut outside to the spanner in the nut outside is rotated, unscrews the nut and dismantles.

Further, insulating disassembly body includes insulating spacing seat, insulator spindle, spring, insulation board, magnetic force piece and connecting block, right side fixed plate rear end left side fixedly connected with insulating spacing seat, the L type is adopted to the shape of insulating spacing seat, insulating spacing seat upper end middle part swing joint has the insulator spindle, the spring is installed to insulator spindle outside front end, insulator spindle front end fixedly connected with insulation board, insulator spindle rear end fixedly connected with connecting block, the insulation board front end is provided with the magnetic force piece, and during the use, insulating spacing seat upper end rear portion can be spacing with the subassembly, and insulator spindle and insulation board pass through the extrusion of spring, fix at insulating spacing seat front end, and the nut in the fastening bolt outside dismantles the back, and accessible magnetic force piece is inhaled fastening bolt magnetism, then the staff holds the connecting block, drives fastening bolt with the magnetic force piece and moves backward.

Furthermore, two equal swing joint in mount pad middle part has the gag lever post, gag lever post middle part left side fixedly connected with first connecting strip, inside and the equal swing joint in moving contact middle part in first connecting strip left side have insulating pull rod, and during the use, the gag lever post is installed inside the mount pad, can rotate inside the mount pad, and the moving contact right side is upwards lifted up and can be driven insulating pull rod and first connecting strip rebound.

Furthermore, a second connecting strip is fixedly connected to the left side of the front end of the limiting rod, an ejection mechanism is installed in the middle of the front end installation seat, and when the moving contact is used, the second connecting strip can be upwards ejected through the ejection mechanism, so that the second connecting strip drives the limiting rod to rotate and drives the right side of the moving contact to be upwards lifted.

Further, ejection mechanism includes ejecting piece, stopper, fly leaf, bearing, screw rod, insulating rotation piece and oblique angle, and front end mount pad middle part upper end is provided with the spacing groove, the spacing groove lower extreme is provided with spacing chamber, spacing inslot portion installs ejecting piece, ejecting piece lower extreme is provided with the stopper, spacing intracavity portion front end movable mounting has the fly leaf, fly leaf front end mid-mounting has the bearing, bearing internally mounted has the screw rod, screw rod and front end mount pad threaded connection, screw rod front end fixedly connected with insulating rotation piece, fly leaf rear end and stopper lower extreme all are provided with the oblique angle, and during the use, the staff can hold insulating rotation piece manually to rotate insulating rotation piece, make the screw rod rotate and drive the fly leaf and move around the inside spacing chamber of spacing chamber, through the setting of oblique angle, the fly leaf backward movement can drive stopper and ejecting piece upwards ejecting.

The utility model has the advantages of as follows:

this scheme can realize through indirect contact with moving contact and the static contact separation on the isolator, at first uses the spanner to dismantle coupling mechanism, then inhales through insulating disassembly body with the bolt magnetism and demolishs to upwards ejecting with the second connecting strip through ejection mechanism, make moving contact and static contact separation, effectively avoid staff and isolator direct contact, effectively carry out the earth leakage protection, improve isolator's security.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.

The structure, ratio, size and the like shown in the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention has no technical essential significance, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy and the achievable purpose of the present invention.

Fig. 1 is a schematic structural diagram of an isolating switch with earth leakage protection according to the present invention;

fig. 2 is a schematic structural diagram of an insulating plug-in mechanism provided by the present invention;

FIG. 3 is an enlarged view of the point A in FIG. 1 according to the present invention;

FIG. 4 is an enlarged view of the point B in FIG. 1 provided by the present invention;

fig. 5 is a schematic structural diagram of the ejection mechanism provided by the present invention.

In the figure:

1. a limiting base; 2. a mounting base; 3. an insulator; 4. a fixing plate; 5. carrying out static contact; 6. a moving contact; 7. an insulating pull rod; 8. a limiting rod; 9. a first connecting bar; 10. mounting holes; 11. a connecting mechanism; 111. fastening a bolt; 112. a bolt head; 113. a nut; 114. an insulating pad; 12. an insulation removal mechanism; 121. an insulating limiting seat; 122. an insulating rod; 123. a spring; 124. an insulating plate; 125. a magnetic sheet; 126. connecting blocks; 13. a second connecting bar; 14. an ejection mechanism; 141. ejecting a block; 142. a limiting block; 143. a movable plate; 144. a bearing; 145. a screw; 146. an insulating rotating member; 147. and (4) oblique angle.

Detailed Description

The present invention is described in terms of specific embodiments, and other advantages and benefits of the present invention will become apparent to those skilled in the art from the following disclosure. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Referring to fig. 1-5, an isolating switch with leakage protection includes limiting bases 1, mounting bases 2 are fixedly connected to front and rear ends of the two limiting bases 1, insulators 3 are fixedly connected to upper ends of the limiting bases 1, fixing plates 4 are fixedly connected to upper ends of the insulators 3, fixed contacts 5 are fixedly connected to inner sides of upper ends of the fixing plates 4, moving contacts 6 are mounted on outer sides of the fixed contacts 5, left sides of the moving contacts 6 are hinged to the left fixed contacts 5, mounting holes 10 are formed in inner portions of the right fixed contacts 5 and inner right ends of the moving contacts 6, connecting mechanisms 11 are mounted in the mounting holes 10, insulating disassembling mechanisms 12 are arranged on left sides of rear ends of the right fixing plates 4, insulating pads 114 are arranged on outer sides of nuts 113 and bolt heads 112 in the connecting mechanisms 11, a worker uses a wrench to disassemble the nuts 113 from outer sides of fastening bolts 111, meanwhile, the fastening bolts 111 can be drawn out from the inner portions of the mounting holes 10 through the insulating disassembling mechanisms 12, the moving contacts 6 and the right fixed contacts 5 are conveniently disconnected, the worker is prevented from directly contacting the connecting mechanisms 11, electric shock caused when the isolating switch is disassembled is effectively avoided, and safety of the isolating switch is improved.

Referring to fig. 1-2, the connection mechanism 11 includes a fastening bolt 111, a bolt head 112, a nut 113 and an insulation pad 114, the fastening bolt 111 is installed inside the plurality of installation holes 10, the bolt head 112 is disposed at the rear end of the fastening bolt 111, the nut 113 is connected to the front end of the outer side of the bolt head 112 through a thread, the insulation pads 114 are disposed on the outer sides of the nut 113 and the bolt head 112, when the connection mechanism is used, a worker can manually fix two wrenches on the outer sides of the bolt head 112 and the nut 113 and rotate the wrench on the outer side of the nut 113 to unscrew and disassemble the nut 113, and through the arrangement of the insulation pad 114, the bolt head 112 and the nut 113 can be prevented from inputting electricity into the wrench, and the risk of electric shock of the worker can be avoided.

Referring to fig. 1-2, the insulation disassembling mechanism 12 includes an insulation limiting seat 121, an insulation rod 122, a spring 123, an insulation plate 124, a magnetic sheet 125 and a connecting block 126, the insulation limiting seat 121 is fixedly connected to the left side of the rear end of the right side fixing plate 4, the insulation limiting seat 121 is L-shaped, the insulation rod 122 is movably connected to the middle of the upper end of the insulation limiting seat 121, the spring 123 is installed at the front end of the outer side of the insulation rod 122, the insulation plate 124 is fixedly connected to the front end of the insulation rod 122, the connecting block 126 is fixedly connected to the rear end of the insulation rod 122, and the magnetic sheet 125 is disposed at the front end of the insulation plate 124.

Please refer to fig. 1 and 3, the middle parts of the two mounting seats 2 are movably connected with a limiting rod 8, the middle part of the limiting rod 8 is fixedly connected with a first connecting bar 9, the left inside of the first connecting bar 9 and the middle part of the moving contact 6 are movably connected with an insulating pull rod 7, when the device is used, the limiting rod 8 is mounted inside the mounting seats 2 and can rotate inside the mounting seats 2, the right side of the moving contact 6 is lifted upwards to drive the insulating pull rod 7 and the first connecting bar 9 to move upwards, and the first connecting bar 9 moves upwards to drive the limiting rod 8 to rotate clockwise.

Referring to fig. 1 and fig. 4-5, a second connecting bar 13 is fixedly connected to the left side of the front end of the limiting rod 8, and an ejection mechanism 14 is installed in the middle of the front end mounting seat 2, so that when in use, the second connecting bar 13 can be ejected upwards through the ejection mechanism 14, so that the second connecting bar 13 drives the limiting rod 8 to rotate, and the right side of the moving contact 6 is driven to be lifted upwards, thereby facilitating the movable detachment of the moving contact 6.

Referring to fig. 1 and 4-5, the ejection mechanism 14 includes an ejection block 141, a limiting block 142, a movable plate 143, a bearing 144, a screw 145, an insulating rotating member 146, and an oblique angle 147, the upper end of the middle portion of the front end mounting base 2 is provided with a limiting groove, the lower end of the limiting groove is provided with a limiting cavity, the ejection block 141 is installed inside the limiting groove, the lower end of the ejection block 141 is provided with the limiting block 142, the front end inside the limiting cavity is movably installed with the movable plate 143, the middle portion of the front end of the movable plate 143 is installed with the bearing 144, the bearing 144 is internally installed with the screw 145, the screw 145 is in threaded connection with the front end mounting base 2, the front end of the screw 145 is fixedly connected with the insulating rotating member 146, the rear end of the movable plate 143 and the lower end of the limiting block 142 are both provided with the oblique angle 147, when in use, the limiting cavity is moved up and down, the size of the limiting groove matches with the ejection block 141, the limiting groove can limit the ejection block 141, a worker can manually hold the insulating rotating member 146 and rotate the insulating rotating member 146, so that the screw 145 rotates the movable plate 143 to move back and move the movable contact bar 143 back and move upward, and the second contact bar 13, thereby moving upward and moving the second contact bar 13 upward to separate the stationary contact bar 6 automatically.

The utility model discloses use as follows:

the worker can manually fix the two wrenches outside the bolt head 112 and the nut 113, and rotate the wrench outside the nut 113, unscrew and disassemble the nut 113, through the setting of the insulating pad 114, the situation that the bolt head 112 and the nut 113 input electricity into the wrench can be avoided, the danger of electric shock of the worker can be avoided, then the worker can manually hold the insulating rotating member 146, and rotate the insulating rotating member 146, so that the screw 145 rotates to drive the movable plate 143 to move back and forth inside the limiting cavity, through the setting of the bevel 147, the movable plate 143 moves backwards, the limiting block 142 and the ejection block 141 can be driven to eject upwards, the second connecting strip 13 is ejected upwards, the second connecting strip 13 moves upwards to drive the limiting rod 8 to rotate, and the moving contact 6 automatically moves upwards to be separated from the static contact 5.

Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.

Claims

1. The utility model provides a take earth leakage protection's isolator, includes spacing base (1), its characterized in that: two equal fixedly connected with mount pad (2) of limit base (1) front and back end, fixedly connected with insulator (3) on limit base (1), insulator (3) upper end fixedly connected with fixed plate (4), inboard fixedly connected with static contact (5) in fixed plate (4) upper end, moving contact (6) are installed in the static contact (5) outside, moving contact (6) left side is articulated with left side static contact (5), the right side static contact (5) inside and the inside right-hand member of moving contact (6) all are provided with mounting hole (10), mounting hole (10) internally mounted has coupling mechanism (11), right side fixed plate (4) rear end left side is provided with insulating disassembly body (12).

2. A leakage protection disconnector according to claim 1, characterized in that: coupling mechanism (11) are including fastening bolt (111), bolt head (112), nut (113) and insulating pad (114), and are a plurality of mounting hole (10) internally mounted has fastening bolt (111), fastening bolt (111) rear end is provided with bolt head (112), bolt head (112) outside front end threaded connection has nut (113), all be provided with insulating pad (114) in nut (113) and bolt head (112) outside.

3. A leakage protection disconnector according to claim 1, characterized in that: insulating disassembly body (12) are including insulating spacing seat (121), insulator spindle (122), spring (123), insulation board (124), magnetic force piece (125) and connecting block (126), right side fixed plate (4) rear end left side fixedly connected with insulating spacing seat (121), the shape of insulating spacing seat (121) adopts the L type, insulating spacing seat (121) upper end middle part swing joint has insulator spindle (122), spring (123) are installed to insulator spindle (122) outside front end, insulator spindle (122) front end fixedly connected with insulation board (124), insulator spindle (122) rear end fixedly connected with connecting block (126), insulation board (124) front end is provided with magnetic force piece (125).

4. A leakage protection disconnector according to claim 1, characterized in that: two equal swing joint in mount pad (2) middle part has gag lever post (8), gag lever post (8) middle part left side fixedly connected with first connecting strip (9), inside and the equal swing joint in moving contact (6) middle part in first connecting strip (9) left side has insulating pull rod (7).

5. A leakage protection disconnector according to claim 4, characterized in that: the left side of the front end of the limiting rod (8) is fixedly connected with a second connecting strip (13), and the middle of the front end mounting seat (2) is provided with an ejection mechanism (14).

6. A leakage protection disconnector according to claim 5, characterized in that: the ejection mechanism (14) comprises an ejection block (141), a limiting block (142), a movable plate (143), a bearing (144), a screw rod (145), an insulating rotating part (146) and an oblique angle (147), wherein a limiting groove is formed in the upper end of the middle of the front end mounting seat (2), a limiting cavity is formed in the lower end of the limiting groove, the ejection block (141) is mounted in the limiting groove, the limiting block (142) is arranged at the lower end of the ejection block (141), the movable plate (143) is movably mounted at the front end in the limiting cavity, the bearing (144) is mounted in the middle of the front end of the movable plate (143), the screw rod (145) is mounted in the bearing (144), the screw rod (145) is in threaded connection with the front end mounting seat (2), the insulating rotating part (146) is fixedly connected to the front end of the screw rod (145), and the oblique angle (147) is formed in the rear end of the movable plate (143) and the lower end of the limiting block (142).