阅读说明：本技术 一种浪涌后备保护装置 (Surge backup protection device ) 是由 朱云超 冯慧 于 2021-08-26 设计创作，主要内容包括：本发明公开了一种浪涌后备保护装置,包括基座,所述基座内部安装有电涌保护器,所述电涌保护器外侧设置有保护壳,所述保护壳的底部设置有第一套管,所述基座底部内表面上设置有与第一套管相配合导通的第二套管,所述第一套管与第二套管之间设置有锁紧机构,所述锁紧机构的外侧设置有驱动机构,所述驱动机构上安装有限位板；通过支柱落至限位槽内部,使得支柱与第二套管不接触也处于不导通的状态,初始状态时,支撑球置于第二套管顶部使得第一套管与第二套管呈导通状态,当第一套管转动带动支柱和其底部的支撑球落至限位槽内部时,第一套管与第二套管处于绝缘支柱,使得电涌保护器处于脱离状态,从而对电涌保护器进行保护。(The invention discloses a surge backup protection device which comprises a base, wherein a surge protector is arranged in the base, a protective shell is arranged on the outer side of the surge protector, a first sleeve is arranged at the bottom of the protective shell, a second sleeve matched with the first sleeve for conduction is arranged on the inner surface of the bottom of the base, a locking mechanism is arranged between the first sleeve and the second sleeve, a driving mechanism is arranged on the outer side of the locking mechanism, and a limiting plate is arranged on the driving mechanism; fall to the spacing inslot portion through the pillar for the pillar also is in the state that does not switch on with second sleeve pipe contactless, and during initial condition, the support ball is arranged in second sleeve pipe top in and is made first sleeve pipe and second sleeve pipe be the state of switching on, and when first sleeve pipe rotated the support ball that drives pillar and its bottom and falls to the spacing inslot portion, first sleeve pipe and second sleeve pipe were in insulating pillar, make surge protector be in the off-state, thereby protect surge protector.)

1. The utility model provides a surge backup protection device, includes the base, base internally mounted has surge protector, the surge protector outside is provided with protective housing, its characterized in that: the bottom of protective housing is provided with first sleeve pipe, be provided with the second sleeve pipe that cooperatees and switch on with first sleeve pipe on the internal surface of base bottom, be provided with locking mechanism between first sleeve pipe and the second sleeve pipe, locking mechanism's the outside is provided with actuating mechanism, the last limiting plate that installs of actuating mechanism, the limiting plate melts when surge protector temperature reaches the threshold value, and actuating mechanism drives first sleeve pipe and rotates and form insulating state with between the second sleeve pipe and be used for separating surge protector from the circuit.

2. A surge backup protection device according to claim 1, characterized in that: the bottom of protective housing is provided with first conductive joint, be provided with the second conductive joint with first conductive joint matched with on the base bottom internal surface, first conductive joint sets up in first sleeve intraduct and contacts with first sleeve, the second conductive joint sets up in the second sleeve intraduct and contacts with the second sleeve.

3. A surge backup protection device according to claim 1, characterized in that: the locking mechanism includes: the supporting column is arranged on the bottom surface of the first sleeve and fixedly connected with the first sleeve, a supporting ball is arranged at the bottom end of the supporting column, the supporting ball is in contact with the top surface of the second sleeve, and the supporting ball is rotatably connected with the supporting column;

set up in second sleeve pipe top surface and with second sleeve pipe fixed connection's cowl, be provided with the recess on the cowl inner wall, fixed be provided with on the pillar lateral surface with recess assorted sand grip.

4. A surge backup protection device according to claim 3, wherein: the top surface of the second sleeve is provided with a limiting groove, the inner diameter of the limiting groove is larger than the outer diameter of the strut, a round hole is formed in the bottom surface of the inner portion of the limiting groove and matched with the supporting ball, a sliding groove is formed between the arc-shaped baffle plate and the limiting groove and communicated with the limiting groove, and an insulating pad is arranged at the position of the round hole.

5. A surge backup protection device according to claim 3, wherein: and a driven chain wheel is arranged on the outer side of the support, and a chain is meshed with the outer side of the driven chain wheel.

6. A surge backup protection device according to claim 1, characterized in that: the utility model discloses a support structure for a motor vehicle, including first sleeve pipe, the outside top of first sleeve pipe is provided with the lantern ring, the lantern ring rotates with first sleeve pipe to be connected and fixed connection in base bottom, first sleeve pipe outside fixedly connected with gear, the outside of gear is provided with the rack, the rack meshes with the gear mutually, the bottom fixedly connected with backup pad of base, the both ends of rack all run through the backup pad and with backup pad sliding connection.

7. A surge backup protection device according to claim 6, characterized in that: actuating mechanism still includes fixed connection in the guide rail of protective housing bottom, the inside sliding connection of guide rail has the slider, the slider bottom is provided with drive sprocket, the protective housing bottom is provided with the montant, the montant run through drive sprocket and with drive sprocket fixed connection, montant top and slider fixed connection, the montant runs through the base and extends to the outside of base, the chain sets up in the drive sprocket and the driven sprocket outside.

8. A surge backup protection device according to claim 7, wherein: the utility model discloses a guide rail, including slider, guide rail, guide plate, slide block one side fixedly connected with first slide bar, be provided with the through-hole that supplies first slide bar to wear out on the guide rail side, the diameter of through-hole is greater than the external diameter of first slide bar, fixedly connected with limiting plate on the first slide bar lateral surface, guide rail one side is provided with the heat-conducting plate, the heat-conducting plate passes through welding and guide rail fixed connection, the limiting plate contacts with the heat-conducting plate.

9. A surge backup protection device according to claim 7, wherein: the utility model discloses a guide rail, including slider opposite side fixedly connected with second slide bar, the second slide bar pass the guide rail and with guide rail sliding connection, the outside of second slide bar is provided with the spring, the spring sets up between slider and guide rail, fixedly connected with stay cord between second slide bar and the rack, the protective housing bottom is located stay cord corner and is provided with the directive wheel, the stay cord sets up in the directive wheel outside, the directive wheel bottom is provided with the dead lever, the dead lever is close to the one end of directive wheel and is connected with the rotation of writing the wheel, the dead lever is kept away from the one end and the protective housing fixed connection of directive wheel.

Technical Field

The invention relates to the technical field of lightning protection equipment, in particular to a surge backup protection device.

Background

At present, in order to prevent the invasion of lightning current, a surge protector is generally installed between a power transmission line and electric equipment in a power distribution system. When the surge protector is used in signal equipment, the maximum discharge current is limited, and if the surge protector cannot be thermally tripped at the maximum discharge current, the surge protector cannot bear lightning current to cause power supply short circuit, so that power supply accidents are caused; the conventional solution is to serially connect a voltage dependent resistor with a fuse, but when the serially connected fuse has a small capacity, the fuse cannot bear excessive voltage impact; when the series fuse has large capacity, the fuse can be fused or disconnected only by large current, and power supply short circuit is easily caused to form power supply accidents.

The Chinese patent CN209029919U discloses a backup protection device for a surge protector, which comprises a mounting plate, wherein a fixed block is horizontally and fixedly connected to the left position in the middle of the upper part of the front side of the mounting plate, a mounting box is fixedly connected to the lower part of the front side of the mounting plate, a groove is formed in the middle of the bottom of the mounting box, and power supply contact copper ends are fixedly mounted on the left side and the right side of the bottom of an inner cavity of the mounting box. The utility model discloses a set up positive and negative motor, first threaded rod, second threaded rod, two sets of screw thread movable block, two push rods and jack-up layer board when surge protector takes place to overflow, can drive surge protector through the jack-up layer board and rise to with the separation of power supply contact copper end, stop supplying power, protection surge protector, it is comparatively practical, be fit for extensively promoting and using.

But this equipment carries out the protection device that separates to surge protector when the in-service use, drives the separation of surge protector through one set of climbing mechanism of motor drive, has increased extra connecting circuit, and the structure is complicated, and response speed is slow in the in-service use to difficult operation.

Therefore, it is necessary to provide a surge backup protection device to solve the above technical problems.

Disclosure of Invention

The present invention is directed to a surge backup protection device to solve the above-mentioned problems in the prior art.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a surge backup protection device, includes the base, base internally mounted has surge protector, the surge protector outside is provided with protective housing, its characterized in that: the bottom of protective housing is provided with first sleeve pipe, be provided with the second sleeve pipe that cooperatees and switch on with first sleeve pipe on the internal surface of base bottom, be provided with locking mechanism between first sleeve pipe and the second sleeve pipe, locking mechanism's the outside is provided with actuating mechanism, the last limiting plate of installing of actuating mechanism, when surge protector temperature reached the threshold value limiting plate in the actuating mechanism melts, actuating mechanism drive first sleeve pipe rotate and with the second sleeve pipe between form insulating state be used for with surge protector from the circuit separation.

When the temperature of the surge protector rises to 50-60 degrees during specific use, the limiting plate in the driving mechanism is melted, so that an insulating state is formed between the first sleeve and the second sleeve to separate the surge protector from a circuit, and the surge protector can be protected to prevent the surge protector from being damaged.

As a further aspect of the present invention, a first conductive joint is disposed at the bottom of the protective casing, a second conductive joint matched with the first conductive joint is disposed on the inner surface of the bottom of the base, the first conductive joint is disposed inside the first casing and is in contact with the first casing for electrical conduction, and the second conductive joint is disposed inside the second casing and is in contact with the second casing for electrical conduction.

When the surge protector is used specifically, the first conductive connector is arranged inside the first sleeve and is in contact with the first sleeve, and the second conductive connector is arranged inside the second sleeve and is in contact with the second sleeve, so that the first conductive connector is in contact with the second conductive adhesive connector, the surge protector can be connected into a circuit, and a load circuit is protected.

As a further aspect of the present invention, the locking mechanism includes: the supporting column is arranged on the bottom surface of the first sleeve and fixedly connected with the first sleeve, a supporting ball is arranged at the bottom end of the supporting column, the supporting ball is in contact with the top surface of the second sleeve, and the supporting ball is rotatably connected with the supporting column;

set up in second sleeve pipe top surface and with second sleeve pipe fixed connection's cowl, be provided with the recess on the cowl inner wall, fixed be provided with on the pillar lateral surface with recess assorted sand grip.

When the surge protector is in practical operation, the surge protector and the protective shell outside the surge protector are placed inside the base together, the positioning block is matched with the positioning groove, the supporting ball at the bottom of the support is contacted with the top surface on the second sleeve at the moment, the support is attached to the arc-shaped baffle, the driven sprocket is driven to rotate reversely by the chain at the moment, the convex strip outside the support is rotated to the inner side of the arc-shaped baffle to be contacted with the inner side surface of the arc-shaped baffle, the convex strip is extruded to generate deformation and can be placed between the support and the arc-shaped baffle, the driven sprocket is driven to rotate forwards by the chain at the moment, and the convex strip outside the support can be driven to rotate forwards by the driven sprocket, can during the corotation of sand grip with the recess phase-match on the cowl medial surface to with the sand grip card inside the recess, make pillar and cowl block mutually, and then with first sleeve pipe and second sleeve pipe fastening connection.

As a further scheme of the invention, the top surface of the second sleeve is provided with a limiting groove, the inner diameter of the limiting groove is larger than the outer diameter of the strut, the bottom surface of the inner part of the limiting groove is provided with a round hole, the round hole is matched with the supporting ball, a sliding groove is arranged between the arc baffle and the limiting groove, the sliding groove is communicated with the limiting groove, and an insulating pad is arranged at the round hole.

When the surge protector is used, the pillar at the bottom of the first sleeve can be driven to rotate through the rotation of the first sleeve, the pillar slides to the inside of the limiting groove along the sliding groove on the top surface of the second sleeve, so that the supporting ball at the bottom of the pillar is matched with the round hole on the bottom surface of the limiting groove, the round hole is provided with the insulating pad, when the supporting ball falls to the round hole, the supporting ball and the second sleeve are in an insulating state and are not conducted, and because the inner diameter of the limiting groove is larger than the outer diameter of the pillar, when the pillar falls to the inside of the limiting groove, the pillar is not in contact with the second sleeve and is also in a non-conducting state, when the pillar is in an initial state, the supporting ball is arranged at the top of the second sleeve, so that the first sleeve and the second sleeve are in a conducting state, when the first sleeve rotates to drive the pillar and the supporting ball at the bottom of the pillar to fall to the inside of the limiting groove, the first sleeve and the second sleeve are in an insulating pillar, so that the surge protector is in a separated state, thereby protecting the surge protector.

In a further aspect of the present invention, a driven sprocket is provided outside the strut, and a chain is engaged with an outside of the driven sprocket.

When the driven gear is used specifically, the driven gear can be driven to rotate through the chain.

As a further scheme of the invention, a lantern ring is arranged at the top end of the outer side of the first sleeve, the lantern ring is rotatably connected with the first sleeve and fixedly connected to the bottom of the base, a gear is fixedly connected to the outer side of the first sleeve, a rack is arranged on the outer side of the gear and meshed with the gear, a support plate is fixedly connected to the bottom of the base, and two ends of the rack penetrate through the support plate and are slidably connected with the support plate.

During specific use, the current in the circuit is great, and when the higher needs of the heat that reaches break away from surge protector, drive the gear through the rack and rotate to the inboard, the gear can drive first sleeve and rotate to the inboard.

As a further scheme of the invention, the driving mechanism further comprises a guide rail fixedly connected to the bottom of the protective shell, a sliding block is connected in the guide rail in a sliding manner, a driving chain wheel is arranged at the bottom end of the sliding block, a vertical rod is arranged at the bottom of the protective shell, the vertical rod penetrates through the driving chain wheel and is fixedly connected with the driving chain wheel, the top end of the vertical rod is fixedly connected with the sliding block, the vertical rod penetrates through the base and extends to the outer side of the base, and the chain is arranged on the outer sides of the driving chain wheel and the driven chain wheel.

When the chain tensioning device is used specifically, the driving chain wheel can be driven to rotate through the vertical rod, then the driven chain wheel is driven to rotate through the chain, the driving support is favorable for driving the support to rotate, and the chain is favorable for tensioning and loosening through the sliding block.

As a further scheme of the invention, a first slide bar is fixedly connected to one side of the slide block, a through hole through which the first slide bar penetrates is formed in one side surface of the guide rail, the diameter of the through hole is larger than the outer diameter of the first slide bar, a limiting plate is fixedly connected to the outer side surface of the first slide bar, a heat-conducting plate is arranged on one side of the guide rail, the heat-conducting plate is fixedly connected with the guide rail through welding, and the limiting plate is in contact with the heat-conducting plate.

During specific use, the limiting plate can be heated through the heat conducting plate, so that the limiting plate is melted, and the second sliding rod can be moved conveniently.

As a further scheme of the invention, a second slide bar is fixedly connected to the other side of the slide block, the second slide bar penetrates through the guide rail and is connected with the guide rail in a sliding manner, a spring is arranged on the outer side of the second slide bar, the spring is arranged between the slide block and the guide rail, a pull rope is fixedly connected between the second slide bar and the rack, a steering wheel is arranged at the bottom of the protective shell and positioned at the corner of the pull rope, the pull rope is arranged on the outer side of the steering wheel, a fixed rod is arranged at the bottom of the steering wheel, one end of the fixed rod, which is close to the steering wheel, is connected with the writing wheel in a rotating manner, and one end of the fixed rod, which is far away from the steering wheel, is fixedly connected with the protective shell.

During specific use, the sliding block can be pushed leftwards under the action of the elastic force of the spring, the chain can be loosened when the sliding block moves leftwards, the sliding block drives the second sliding rod to move leftwards, the pull rope can pull the rack through the steering wheel, the rack is driven to move rightwards, the gear can be driven to rotate through the meshing of the rack and the gear, and then the first sleeve is driven to rotate, so that the supporting column is driven to rotate to the inside of the limiting groove.

The working principle is as follows: when the current of the surge protector is larger, the heat productivity of the surge protector is larger, so that the heat conducting plate can be heated, the temperature of the heat conducting plate is raised, the limiting plate can be heated through the heat conducting plate, the limiting plate is melted, at the moment, the sliding block can be pushed leftwards under the action of the elastic force of the spring, the chain can be loosened when the sliding block moves leftwards, the sliding block drives the second sliding rod to move leftwards, the pull rope can pull the rack through the steering wheel, so that the rack is driven to move rightwards, the gear can be driven to rotate through the meshing of the rack and the gear, the first sleeve can be driven to rotate inwards by the gear, and the chain can be loosened when the rack moves, therefore, the support column at the bottom of the first sleeve can be driven to rotate through the rotation of the first sleeve, the support column slides to the inside of the limiting groove along the sliding groove on the top surface of the second sleeve, and further the support ball at the bottom of the support column is matched with the round hole on the bottom surface of the limiting groove, and round hole department is provided with insulating pad, when the support ball falls to round hole department, the support ball is insulating state with the second sleeve pipe, non-conductive, and because the internal diameter of spacing groove is greater than the external diameter of pillar, therefore, when the pillar falls to the spacing inslot portion, the pillar also is in the state that does not switch on with the second sleeve pipe contactless, during initial state, the support ball is arranged in second sleeve pipe top and is made first sleeve pipe and second sleeve pipe be the state of switching on, when the support ball of first sleeve pipe rotation drive pillar and its bottom falls to the spacing inslot portion, first sleeve pipe and second sleeve pipe are in insulating pillar, make surge protector be in the off-state, thereby protect surge protector.

The surge backup protection device provided by the invention has the advantages that the support column slides to the inside of the limiting groove along the sliding groove on the top surface of the second sleeve, so that the support ball at the bottom of the support column is matched with the round hole on the bottom surface of the limiting groove, the round hole is provided with the insulating pad, when the support ball falls to the round hole, the support ball and the second sleeve are in an insulating state and are not conducted, and because the inner diameter of the limiting groove is larger than the outer diameter of the support column, when the support column falls to the inside of the limiting groove, the support column is not in contact with the second sleeve and is also in a non-conducting state, when the support column falls to the inside of the limiting groove, the support ball is arranged at the top of the second sleeve to enable the first sleeve and the second sleeve to be in a conducting state, when the first sleeve rotates to drive the support column and the support ball at the bottom of the support column to fall to the inside of the limiting groove, the first sleeve and the second sleeve are in an insulating support column, so that the surge protector is in a separated state, and the surge protector is protected, the device drives power through the self heat productivity of the surge protector, has a simple structure during actual operation, does not need to be connected with an additional circuit, is convenient to operate and has high sensitivity.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the locking mechanism of the present invention;

FIG. 3 is a plan view of the locking mechanism of the present invention;

FIG. 4 is a schematic view of the drive mechanism of the present invention;

FIG. 5 is a schematic view of the construction of the curved baffle of the present invention;

FIG. 6 is a schematic view of the structure of the sliding groove and the limiting groove of the present invention;

FIG. 7 is a schematic view of the connection of the flapper and the second sleeve of the present invention;

FIG. 8 is a schematic view of the chain structure of the present invention;

FIG. 9 is an enlarged view of portion A of FIG. 2 in accordance with the present invention;

FIG. 10 is an enlarged view of the portion B of FIG. 7 according to the present invention.

In the figure: 1. a base; 2. a protective shell; 3. positioning a groove; 4. positioning blocks; 5. a first sleeve; 6. a second sleeve; 7. a pillar; 8. a support ball; 9. an arc-shaped baffle plate; 10. a groove; 11. a convex strip; 12. a limiting groove; 13. a circular hole; 14. a chute; 15. an insulating pad; 16. a chain; 17. a collar; 18. a gear; 19. a rack; 20. a support plate; 21. a guide rail; 22. a slider; 23. a drive sprocket; 24. a vertical rod; 25. a nut; 26. a first slide bar; 27. a limiting plate; 28. a heat conducting plate; 29. a second slide bar; 30. a spring; 31. pulling a rope; 32. and a steering wheel.

Detailed Description

As shown in fig. 1 and 3, a surge backup protection device, including base 1, 1 internally mounted of base has surge protector, and the surge protector outside is provided with protective housing 2, and both sides all are provided with constant head tank 3 around the protective housing 2, and the fixed locating piece 4 that cooperatees and use with constant head tank 3 that is provided with on the 1 inner wall of base for surge protector installs locating piece 4 and constant head tank 3 when inside and cooperatees and to fix a position protective housing 2 in the inside position of base 1.

As shown in fig. 1-3, a first conductive joint is disposed at the bottom of the protective casing 2, a second conductive joint matched with the first conductive joint is disposed on the inner surface of the bottom of the base 1, a first sleeve 5 is disposed on the outer side of the first conductive joint, a second sleeve 6 is disposed on the outer side of the second conductive joint, the first conductive joint contacts with the first sleeve 5, the second conductive joint contacts with the second sleeve 6, the circuit is conducted by the contact between the first conductive joint and the second conductive joint, a locking mechanism is disposed between the first sleeve 5 and the second sleeve 6, and a driving mechanism is disposed on the outer side of the locking mechanism for driving the locking mechanism to lock the first sleeve 5 and the second sleeve 6.

As shown in fig. 2-8 and 10, the locking mechanism comprises a pillar 7 disposed on the bottom surface of the first casing 5 and fixedly connected to the first casing 5, a support ball 8 disposed at the bottom end of the pillar 7, the support ball 8 contacting with the top surface of the second casing 6, the support ball 8 rotatably connected to the pillar 7, an arc baffle 9 disposed on the top surface of the second casing 6 and fixedly connected to the second casing 6, a groove 10 disposed on the inner wall of the arc baffle 9, a protruding strip 11 fixed to the groove 10 disposed on the outer side surface of the pillar 7, the protruding strip 11 made of stainless steel, a limit groove 12 disposed on the top surface of the second casing 6, the inner diameter of the limit groove 12 being larger than the outer diameter of the pillar 7, a circular hole 13 disposed on the inner bottom surface of the limit groove 12, the circular hole 13 used in cooperation with the support ball 8, a sliding groove 14 disposed between the arc baffle 9 and the limit groove 12, the sliding groove 14 being communicated with the limit groove 12, an insulating pad 15 is arranged at the round hole 13.

The outer side of the support 7 is provided with a driven sprocket, the outer side of the driven sprocket is meshed with a chain 16, the driven sprocket is driven by the chain 16 to rotate, the support 7 is driven by the driven sprocket to rotate, the raised line 11 on the outer side of the support 7 can rotate along with the support 7 in the rotating process, the support 7 can be connected with the arc-shaped baffle 9 through the matching of the raised line 11 and the groove 10, in practical operation, the surge protector and the protective shell 2 on the outer side of the surge protector are placed inside the base 1 together, the positioning block 4 is matched with the positioning groove 3, the supporting ball 8 at the bottom of the support 7 is contacted with the top surface on the second sleeve 6, the support 7 is attached with the arc-shaped baffle 9, the driven sprocket is driven by the chain 16 to rotate reversely, the raised line 11 on the outer side of the support 7 is rotated to the inner side of the arc-shaped baffle 9 to be contacted with the inner side surface of the arc-shaped baffle 9, the raised line 11 is extruded to generate deformation and can be placed between the support 7 and the arc-shaped baffle 9, at this moment, driving driven sprocket corotation through chain 16, can driving the sand grip 11 corotation in pillar 7 and its outside through driven sprocket, can with the recess 10 phase-match on the 9 medial surfaces of cowl during sand grip 11 corotation to block sand grip 11 inside recess 10, make pillar 7 and cowl 9 looks block, and then with first sleeve 5 and 6 fastening connection of second sleeve, can conveniently connect the installation to surge protector fast through this structure, the simple operation.

The top end of the outer side of the first sleeve 5 is provided with a sleeve ring 17, the sleeve ring 17 is rotatably connected with the first sleeve 5 and fixedly connected to the bottom of the base 1, the gear 18 is fixedly connected to the outer side of the first sleeve 5, the outer side of the gear 18 is provided with a rack 19, the rack 19 is meshed with the gear 18, the bottom of the base 1 is fixedly connected with a support plate 20, and two ends of the rack 19 penetrate through the support plate 20 and are slidably connected with the support plate 20.

When the surge protector is used, when the current in a circuit is large, the surge protector needs to be separated due to high heat, the gear 18 is driven to rotate inwards through the rack 19, the gear 18 can drive the first sleeve 5 to rotate inwards, and the chain 16 can be loosened when the rack 19 moves, so that the pillar 7 at the bottom of the first sleeve 5 can be driven to rotate through the rotation of the first sleeve 5, the pillar 7 slides to the inside of the limiting groove 12 along the sliding groove 14 on the top surface of the second sleeve 6, the supporting ball 8 at the bottom of the pillar 7 is further driven to be matched with the round hole 13 on the bottom surface of the limiting groove 12, the round hole 13 is provided with the insulating pad 15, when the supporting ball 8 falls to the round hole 13, the supporting ball 8 and the second sleeve 6 are in an insulating state and are not conducted, and because the inner diameter of the limiting groove 12 is larger than the outer diameter of the pillar 7, when the pillar 7 falls to the inside of the limiting groove 12, the pillar 7 and the second sleeve 6 are not in a non-conducting state, during initial state, 6 tops of second sleeve pipe are arranged in to support ball 8 and make first sleeve pipe 5 and second sleeve pipe 6 be the on-state, when first sleeve pipe 5 rotates support ball 8 that drives pillar 7 and its bottom and falls to spacing groove 12 inside, first sleeve pipe 5 and second sleeve pipe 6 are in insulating pillar 7, make surge protector be in the off-state, thereby protect surge protector, calorific capacity through surge protector self through this device drives power, simple structure during actual operation, need not connect extra circuit, the simple operation, high sensitivity.

As shown in fig. 2 to 9, the driving mechanism includes a guide rail 21 fixedly connected to the bottom of the protective shell 2, a slider 22 is slidably connected to the inside of the guide rail 21, a driving sprocket 23 is disposed at the bottom of the slider 22, a vertical rod 24 is disposed at the bottom of the protective shell 2, the vertical rod 24 penetrates through the driving sprocket 23 and is fixedly connected to the driving sprocket 23, the top end of the vertical rod 24 is fixedly connected to the slider 22, the vertical rod 24 penetrates through the base 1 and extends to the outside of the base 1, a counter bore is disposed at the bottom of the base 1 at the position of the vertical rod 24, a nut 25 is disposed inside the counter bore, the vertical rod 24 is fixedly connected to the base 1 through the nut 25, a first slide rod 26 is fixedly connected to one side of the slider 22, a through hole for the first slide rod 26 to penetrate through is disposed on one side of the guide rail 21, the diameter of the through hole is larger than the outer diameter of the first slide rod 26, a limit plate 27 easy to melt is fixedly connected to the outer side of the first slide rod 26, a heat conducting plate 28 is disposed on one side of the guide rail 21, heat-conducting plate 28 is through welding and guide rail 21 fixed connection, limiting plate 27 contacts with heat-conducting plate 28, slider 22 opposite side fixedly connected with second slide bar 29, second slide bar 29 pass guide rail 21 and with guide rail 21 sliding connection, the outside of second slide bar 29 is provided with spring 30, spring 30 sets up between slider 22 and guide rail 21, fixedly connected with stay cord 31 between second slide bar 29 and rack 19, protective housing 2 bottom is located stay cord 31 corner and is provided with directive wheel 32, stay cord 31 sets up in the directive wheel 32 outside, directive wheel 32 bottom is provided with the dead lever, the dead lever is close to the one end of directive wheel 32 and writes the wheel and rotates and be connected, the dead lever is kept away from the one end and the protective housing 2 fixed connection of directive wheel 32.

During the use, electric current when surge protector is great, surge protector's calorific capacity is great, thereby can heat-conducting plate 28, make its temperature rise, can heat limiting plate 27 through heat-conducting plate 28, thereby melt limiting plate 27, can promote slider 22 left under spring 30's elasticity effect this moment, can loosen chain 16 when slider 22 moves left, and can stimulate stay cord 31 when slider 22 drives second slide bar 29 and moves left, stay cord 31 can stimulate rack 19 through directive wheel 32, thereby drive rack 19 and move to the right side, can drive gear 18 through the meshing of rack 19 and gear 18 and rotate, and then drive first sleeve 5 and rotate, make pillar 7 rotate to limiting groove 12 inside.

The working principle is as follows: when the current of the surge protector is larger, the heat productivity of the surge protector is larger, so that the heat conducting plate 28 can be heated, the temperature of the heat conducting plate is increased, the limiting plate 27 can be heated through the heat conducting plate 28, the limiting plate 27 is melted, at the moment, the sliding block 22 can be pushed leftwards under the action of the elastic force of the spring 30, the chain 16 can be loosened when the sliding block 22 moves leftwards, the sliding block 22 drives the second sliding rod 29 to move leftwards, the pull rope 31 can be pulled, the pull rope 31 can pull the rack 19 through the steering wheel 32, so that the rack 19 is driven to move rightwards, the gear 18 can be driven to rotate through the meshing of the rack 19 and the gear 18, the gear 18 can drive the first sleeve 5 to rotate inwards, and the chain 16 can be loosened when the rack 19 moves, therefore, the support 7 at the bottom of the first sleeve 5 can be driven to rotate through the rotation of the first sleeve, the support 7 slides to the inside of the limiting groove 12 along the sliding groove 14 on the top surface of the second sleeve 6, and then make the support ball 8 of pillar 7 bottom and the round hole 13 phase-match on the inside bottom surface of spacing groove 12, and round hole 13 department is provided with insulating pad 15, when support ball 8 fell to round hole 13 department, support ball 8 and second sleeve 6 are insulating state, do not switch on, and because the internal diameter of spacing groove 12 is greater than the external diameter of pillar 7, therefore, when pillar 7 fell to spacing groove 12 inside, pillar 7 and second sleeve 6 contactless also are in the state of not switching on, during initial state, support ball 8 is arranged in second sleeve 6 top and is made first sleeve 5 and second sleeve 6 be the conducting state, when first sleeve 5 rotated and is driven pillar 7 and the support ball 8 of its bottom and fell to spacing groove 12 inside, first sleeve 5 and second sleeve 6 are in insulating pillar 7, make surge protector be in the off-state, thereby protect surge protector.