CN118099837A

CN118099837A - Overload-proof power strip

Info

Publication number: CN118099837A
Application number: CN202410487314.2A
Authority: CN
Inventors: 赵仕新; 王晓东; 张飒; 魏金龙
Original assignee: Shandong Abiby Environmental Protection Technology Co ltd
Current assignee: Shandong Abiby Environmental Protection Technology Co ltd
Priority date: 2024-04-23
Filing date: 2024-04-23
Publication date: 2024-05-28
Anticipated expiration: 2044-04-23
Also published as: CN118099837B

Abstract

The invention belongs to the technical field of power strip, and particularly relates to an overload-proof power strip, which comprises a power strip plate, wherein a plurality of groups of slots are uniformly formed in the top of the power strip plate, power strips are slidably installed in each group of slots, jacks are uniformly formed in each group of power strips, the overload-proof power strip also comprises a fixing mechanism, the fixing mechanism comprises through slots formed in the side walls of the power strips, fixing columns are arranged in inner cavities of each group of through slots, balls are uniformly arranged on the fixing columns in a rolling mode and are contacted with inner cavity walls of adjacent through slots, and a first magnet block is fixedly arranged on one side of the fixing column close to the inner cavity walls of the power strips. According to the invention, the plug in the jack is automatically fixed in the electrifying process, the situations of poor electrical connection and unstable current conduction caused by loosening between the plug and the jack in the past are avoided, the situations of electric shock hazard increase and fire risk increase caused by an arc phenomenon generated by loosening are avoided, and the safety is further effectively improved.

Description

Overload-proof power strip

Technical Field

The invention belongs to the technical field of power strip, and particularly relates to an overload prevention power strip.

Background

The appliances are commonly used in our lives, so that the power strip becomes an important part for ensuring the normal operation of the appliances, and one power strip can supply a plurality of appliances for use. The socket is used for providing electrical equipment with additional power sockets, and is generally composed of a plug and a plurality of sockets, and the socket has the function of expanding one power socket into a plurality of sockets, so that a plurality of electrical equipment can be conveniently and simultaneously connected for use.

A plurality of electrical appliances can be commonly used basically in a power strip, so that overload operation of the power strip can be caused, the power strip can be burnt out, hidden danger of fire can not be eliminated in the power strip in the prior art, and the power strip also has no overload protection function, and when an electrical load is overloaded, an alarm prompt can not be given for the first time, the power supply can not be automatically cut off, and the hidden danger of overload can not be eliminated.

Chinese patent CN110518416a discloses an overload prevention power strip, when the electrical apparatus takes place to overload, can convey the electric current on the electricity generates magnetism metal piece, electricity generates magnetism metal piece and can obtain magnetism, produces exclusive effort with pushing rod, release the stopper of joint in the inslot, because the tension of spring one, socket piece will keep away from socket bottom of the groove portion, goes up conducting strip and lower conducting strip separation, in the spacing groove of stopper can the joint top to realize automatic power-off, do not influence the use of other electrical apparatus.

For above-mentioned problem, current patent has given the solution, but can't be fixed to the plug when the plug inserts in the jack, leads to easily not hard up between plug and the jack, and this kind of condition can lead to electrical connection bad, increases contact resistance to can influence the conduction effect of electric current, thereby lead to electrical equipment to work abnormally, can also lead to the electric current unstable moreover, produce electric arc phenomenon easily, and then increase the risk of conflagration, electric arc still easily increases the danger of electric shock, the security is relatively poor.

Disclosure of Invention

Aiming at the problems in the prior art, the invention aims to provide an overload prevention socket, which can automatically fix a plug in a jack in the electrifying process, avoid the situation of poor electrical connection and unstable current conduction caused by looseness between the plug and the jack in the past, effectively improve the stability of the socket, and avoid the situation of increasing electric shock hazard and fire risk caused by the generated arc phenomenon, thereby effectively improving the safety.

In order to solve the problems, the invention adopts the following technical scheme.

The overload prevention power strip comprises a power strip plate, wherein a plurality of groups of slots are uniformly formed in the top of the power strip plate, power strips are slidably arranged in each group of slots, two jacks are formed in each group of power strips, the overload prevention power strip also comprises a fixing mechanism, the fixing mechanism comprises through slots formed in the side walls of the power strips, fixing columns are arranged in inner cavities of the through slots, and balls are uniformly and rollingly arranged on the fixing columns; the balls are contacted with the inner cavity walls of the adjacent through grooves; a first magnet block is fixedly arranged on one side, close to the inner cavity wall of the slot, of the fixed column, and an elastic rope is fixedly arranged between the first magnet block and the inner cavity wall of the adjacent through slot; a second magnet block is fixedly arranged on one side, close to the first magnet block, of the inner cavity wall of the slot; the first magnet block and the adjacent second magnet block are mutually exclusive.

Further, copper sheets are fixedly installed at the bottoms of the inner cavities of the jacks, conductive sheets are arranged below the copper sheets, bases are fixedly installed at the bottoms of the conductive sheets, and reset springs are fixedly installed between the bases and the bottom walls of the inner cavities of the slots; the bottom of the conducting strip is fixedly provided with a conducting wire; the bottom of one of the wires in each group of slots is connected with a first conducting strip, the bottom of the other wire in each group of slots is connected with a second conducting strip, the first conducting strip and the second conducting strip are all installed in the socket board, the power line is installed jointly to the first conducting strip and one end of the second conducting strip, each group of two wires in each slot are connected with an overload controller, and the overload controllers are all fixedly installed in the socket board.

Further, a connecting plate is fixedly arranged between two adjacent groups of the bases; the bottoms of the inserting blocks of each group are fixedly connected with vertical rods; the vertical rod is in sliding connection with the connecting plate; elastic air bags are arranged on the outer sides of the vertical rods; the elastic air bag is arranged between the insert block and the connecting plate; the air outlet end of the elastic air bag is communicated with the inside of the slot, and the air inlet end of the elastic air bag is communicated with the outside.

Further, a fixed cylinder is fixedly arranged at the bottom end of the vertical rod; the inner cavity wall of the fixed cylinder is provided with a trapezoid block; the bottom of the inner cavity of the fixed cylinder is provided with semicircular blocks; the bottom wall of the inner cavity of each group of slots is fixedly provided with a supporting rod; the movable blocks are slidably arranged on the rod walls of the support rods; a clamping groove matched with the movable block is formed in the bottom of the semicircular block, and the top end of the supporting rod is fixedly connected with the top wall of the inner cavity of the clamping groove; and energizing springs are fixedly arranged between the connecting plate and the bottom wall of the inner cavity of the slot, and each group of energizing springs are connected with the adjacent overload controller.

Further, the installation cavity has been seted up in the slot, the inner chamber diapire fixed mounting of installation cavity has the inflation gasbag, the top fixed mounting of inflation gasbag has the roof, roof slidable mounting in the inner chamber of installation cavity, the top of roof with the equal fixed mounting of inner chamber roof of installation cavity has the contact block, is close to the equal fixed mounting has L shape telescopic link on the base of installation cavity one side, be provided with the fin in the inflation gasbag, two sets of the bottom of L shape telescopic link all runs through the board of arranging with inflation gasbag and extend to in the inflation gasbag with fin fixed connection.

Further, a fixing cavity is arranged above the mounting cavity, the fixing cavity is arranged in the strip inserting plate, a U-shaped plate is arranged in the inner cavity of the fixing cavity in a sealing sliding mode, the U-shaped plate is fixedly connected with the top of the top plate, an adaptive through hole is formed between the fixing cavity and the slot, and a through hole is formed in the U-shaped plate in a matched mode; the utility model discloses a fixed cavity, including fixed cavity, contact block, fixed cavity, insert row board, fixed cavity's inner chamber roof fixed mounting has the fan, two the contact block jointly with the fan establishes ties, set up the circulation channel in the board, the one end of circulation channel is linked together with the external world, fixed cavity in with the circulation channel is linked together.

Further, the elastic force of the elastic air bag is smaller than that of the return spring.

Further, the distance between the copper sheet and the adjacent conductive sheet is smaller than the distance between the top of the trapezoid block and the bottom of the semicircle block.

Further, the distance between the two contact blocks is equal to the distance between the through hole of the U-shaped plate and the through hole.

Further, the size in the clamping groove is equal to half of the size of the movable block.

Compared with the prior art, the invention has the beneficial effects that:

(1) According to the invention, the repulsive force between the second magnet block and the first magnet block pushes the first magnet block to drive the fixing column to fix the plug, so that the situation that the electrical connection is poor due to looseness between the plug and the jack in the past and the current conduction is unstable is avoided, the stability of the plug connection is effectively improved, the situation that the electric arc phenomenon is generated to increase the electric shock risk and the fire risk is avoided, and the safety is further effectively improved.

(2) According to the invention, the insert moves downwards to extrude the elastic air bag, the air in the elastic air bag is extruded, the air is discharged into the slot through the air outlet end, so that the pressure in the slot is increased, meanwhile, the air in the slot is extruded again by the insert after the insert moves downwards, the air is discharged through a gap between the insert and the inner cavity wall of the slot, the situation that the friction force is increased when the insert is pressed to slide downwards due to residual dust is avoided, the abrasion is effectively avoided, the sliding effect of the insert is effectively improved, and the service life of the insert is prolonged.

(3) According to the invention, through the matching of the trapezoid block, the semicircular block and the movable block, the plug can be automatically fixed and conveniently taken out by pressing the plug block, so that the use effect is effectively improved, the labor is saved, the situation that the plug is easy to separate due to the collision of external force in the power-on use process is avoided, and the use stability in the power-on process is effectively improved.

(4) When the electric overload is conducted, the overload controller controls the electrifying spring to electrify, the electrifying spring contracts after electrifying, the electrifying spring pulls the connecting plate to slide downwards on the rod wall of the vertical rod, the elastic air bag gradually restores to the initial state, the conducting strip is separated from the copper sheet, overload outage can be achieved at the moment, the overload outage protection function is achieved, and the situation that the components of the electrical equipment are overheated, burnt out and damaged due to the fact that the overload controller bears current exceeding the design work load is avoided.

(5) When the electric wire insulation material is electrified and heated, the expansion air bag is expanded through the matching of the L-shaped telescopic rod and the radiating fins, the two groups of contact blocks can be contacted to control the opening of the fan, meanwhile, the through holes and the through holes of the U-shaped plate are communicated, gas in the fixing cavity is blown into the slot through the through holes and is cooled, the overload condition caused by heating in the electrifying process is effectively avoided, and the condition that the electric wire insulation material is softened, embrittled and even melted due to overhigh temperature is avoided.

(6) According to the invention, the fan sucks external gas into the fixed cavity through the circulating channel while blowing, and the gas in the circulating channel flows and cools the position of the top of the plug board at the plug block, so that the cooling effect is effectively improved, the situation that the plug and the socket are in poor contact or break due to high temperature is prevented, and the safety performance of the plug board is effectively improved.

Drawings

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

FIG. 2 is a cross-sectional view of the patch panel of the present invention;

FIG. 3 is a schematic view of a support bar according to the present invention;

FIG. 4 is an overall cross-sectional view of the present invention;

FIG. 5 is an enlarged view of the structure of portion A of FIG. 4 in accordance with the present invention;

FIG. 6 is an enlarged view of the structure of portion B of FIG. 4 in accordance with the present invention;

fig. 7 is an enlarged view of the C-section structure of fig. 4 according to the present invention.

The reference numerals in the figures illustrate:

1. An insertion board; 2. a slot; 3. inserting blocks; 4. a jack; 5. copper sheets; 6. a base; 7. a return spring; 8. a wire; 9. a first conductive strip; 10. a second conductive strip; 11. a power line; 12. a conductive sheet; 13. an overload controller; 14. a first magnet block; 15. a through groove; 16. an elastic rope; 17. a vertical rod; 18. an elastic air bag; 19. a ball; 20. fixing the column; 21. a second magnet block; 22. a connecting plate; 23. a fixed cylinder; 24. a semicircle block; 25. a support rod; 26. a movable block; 27. a clamping groove; 28. energizing a spring; 29. a trapezoid block; 30. a fixed cavity; 31. a mounting cavity; 32. inflating the balloon; 33. a top plate; 34. a contact block; 35. an L-shaped telescopic rod; 36. a heat sink; 37. a through port; 38. a U-shaped plate; 39. a fan; 40. and a circulation channel.

Detailed Description

The present invention is specifically described and illustrated below with reference to examples.

Example 1

As shown in fig. 1 to 7, an overload-preventing power strip comprises a power strip 1, two groups of slots 2 are uniformly formed in the top of the power strip 1, power strips 3 are slidably mounted in each group of slots 2, two jacks 4 are formed in each group of power strips 3, the overload-preventing power strip further comprises a fixing mechanism, the fixing mechanism comprises through grooves 15 formed in the side walls of the power strips 3, fixing columns 20 are arranged in inner cavities of the through grooves 15, balls 19 are uniformly and rollingly mounted on the fixing columns 20 and are in contact with inner cavity walls of adjacent through grooves 15, a first magnet block 14 is fixedly mounted on one side, close to the inner cavity walls of the slots 2, of the fixing columns 20, an elastic rope 16 is fixedly mounted between the first magnet block 14 and the inner cavity walls of the adjacent through grooves 15, a second magnet block 21 is fixedly mounted on one side, close to the inner cavity walls of the first magnet block 14, and mutual repulsion is formed between the first magnet block 14 and the adjacent second magnet block 21.

Through adopting above-mentioned technical scheme, at first insert the plug from the inserted block 3 to jack 4 in, then push down the plug and drive the downward motion of inserted block 3, when the downward motion of inserted block 3 makes logical groove 15 and second magnet piece 21 be same horizontal direction, the repulsive force between second magnet piece 21 and the first magnet piece 14 is greater than the elasticity of elastic rope 16, repulsive force between second magnet piece 21 and the first magnet piece 14, can promote first magnet piece 14 and drive fixed column 20 and slide and tensile elastic rope 16 to jack 4's direction, can make fixed column 20 motion contact the plug in the jack 4 on, fixed column 20 is the setting of non-conductive material, can realize fixed plug in the jack 4, play the effect of anti-loosening, can avoid the electrical connection poor and the unstable condition of electric current conduction that lead to between past plug and the jack 4, can effectively improve the stability of grafting, and the increase danger and the condition that increase the risk that the phenomenon that produce led to, and then effectively improve the security against electric shock. The fixed column 20 slides through the ball 19 when the inner cavity of the through groove 15 moves, the sliding effect of the fixed column 20 can be improved and the sliding resistance can be reduced through the arrangement of the ball 19, and therefore the fixing efficiency of the fixed column 20 to the plug can be effectively improved.

As shown in fig. 2 and 4, the bottom of the inner cavity of each jack 4 is fixedly provided with a copper sheet 5, the lower part of each copper sheet 5 is provided with a conducting strip 12, the bottom of each conducting strip 12 is fixedly provided with a base6, a reset spring 7 is fixedly arranged between the base6 and the bottom wall of the inner cavity of each slot 2, the bottom of each conducting strip 12 is fixedly provided with a conducting wire 8, the bottom of one conducting wire 8 in each slot 2 is connected with a first conducting strip 9, the bottom of the other conducting wire 8 in each slot 2 is connected with a second conducting strip 10, the first conducting strips 9 and the second conducting strips 10 are all arranged in the strip 1, one ends of the first conducting strips 9 and the second conducting strips 10 are jointly provided with a power wire 11, an overload controller 13 is connected between the two conducting wires 8 in each slot 2, and the overload controller 13 is fixedly arranged in the strip 1.

Connecting plates 22 are fixedly installed between two adjacent groups of bases 6, vertical rods 17 are fixedly connected to the bottoms of the groups of inserting blocks 3, the vertical rods 17 are in sliding connection with the adjacent connecting plates 22, elastic air bags 18 are arranged on the outer sides of the vertical rods 17, the elastic air bags 18 are installed between the inserting blocks 3 and the connecting plates 22, air outlet ends of the elastic air bags 18 are communicated with the inside of the slots 2, and air inlet ends of the elastic air bags 18 are communicated with the outside.

By adopting the above technical scheme, the zero line and the live line are respectively installed in the power line 11. The first conductive strip 9 and the second conductive strip 10 are connected to a neutral wire and a live wire, respectively, within the power line 11. The air inlet end and the air outlet end of the elastic air bag 18 are internally provided with one-way valves so as to realize one-way air inlet and air outlet. After the plug is inserted into the jack 4, the plug can be contacted with the copper sheet 5 in the jack 4, the plug is pressed to drive the insert block 3 to move downwards, the insert block 3 can squeeze gas in the slot 2, and the gas in the slot 2 can be blown out through a gap between the insert block 3 and the inner cavity wall of the slot 2. The air in the elastic air bag 18 can be discharged into the slot 2 through the air outlet end when the insert block 3 moves downwards, so that the pressure in the slot 2 can be increased, meanwhile, the air in the slot 2 can be extruded when the insert block 3 moves downwards continuously, and the air is discharged again through a gap between the insert block 3 and the inner cavity wall of the slot 2. The plug is used to the top of the plug board 1 in the long-time placing process, and shelters from in the top of the plug 3, and the top of the plug board 1 does not shelter from and can fall into dust, and the gas in the slot 2 can be realized blowing out the dust at the top between the plug 3 and the inner cavity wall of the slot 2 when being extruded and discharged, so that the cleaning effect is achieved, the situation that the friction force can be increased when the residual dust is pressed to slide downwards when the plug 3 can be avoided, the situation of abrasion is effectively avoided, and the sliding effect of the plug 3 is effectively improved, and the service life of the plug is prolonged. The copper sheet 5 can be made to contact the top of the conducting strip 12 in the process of continuing to move downwards by the inserting block 3, at the moment, the power line 11 is electrified, the power line 11 can carry current to the conducting wire 8 through the first conducting strip 9 and the second conducting strip 10, at the moment, the conducting strip 12 and the copper sheet 5 can be electrified, and therefore the plug in the jack 4 can be electrified.

As shown in fig. 2 to 4 and 6, a fixed cylinder 23 is fixedly installed at the bottom end of a vertical rod 17, trapezoid blocks 29 are installed on the inner cavity wall of the fixed cylinder 23, semicircular blocks 24 are arranged at the bottom of the inner cavity of the fixed cylinder 23, supporting rods 25 are fixedly installed on the inner cavity bottom wall of each group of slots 2, movable blocks 26 are slidably installed on the rod wall of each supporting rod 25, clamping grooves 27 matched with the movable blocks 26 are formed in the bottoms of the semicircular blocks 24, the top ends of the supporting rods 25 are fixedly connected with the inner cavity top walls of the clamping grooves 27, energizing springs 28 are fixedly installed between the connecting plates 22 and the inner cavity bottom walls of the slots 2, and each group of energizing springs 28 are connected with the adjacent overload controllers 13.

By adopting the technical scheme, the inner wall of the fixed cylinder 23 is provided with the slot, the trapezoid block 29 is slidably arranged in the slot, and the pressing spring is fixedly arranged between the trapezoid block and the wall of the inner cavity of the slot, when the plug is inserted into the jack 4 to push the plug 3 to move downwards, the plug 3 can squeeze the elastic air bag 18 and push the fixed cylinder 23 to move downwards through the vertical rod 17; when the copper sheet 5 contacts the conductive sheet 12, the insert block 3 continuously moves downwards to push the conductive sheet 12 to move downwards through the copper sheet 5, the conductive sheet 12 simultaneously drives the base 6 to move downwards and extrude the reset spring 7, the fixed cylinder 23 simultaneously drives the trapezoid block 29 to synchronously move downwards, when the inclined surface of the trapezoid block 29 contacts the cambered surface of the semicircular block 24, the insert block 3 continuously moves downwards to realize that the semicircular block 24 can extrude the trapezoid block 29 to shrink the trapezoid block 29, when the trapezoid block 29 moves to the lower part of the semicircular block 24, the trapezoid block 29 restores to the initial state under the acting force of the pressing spring on the trapezoid block 29, at this time, the pressure applied to the insert block 3 is canceled, under the action force of the return spring 7, the return spring 7 restores the initial state to push the base 6 to move upwards, the base 6 pushes the insert block 3 to move upwards through the conducting strip 12 and the copper sheet 5, the insert block 3 drives the fixed cylinder 23 to move upwards through the vertical rod 17, the fixed cylinder 23 can drive the trapezoid block 29 to move upwards, the plane at the top of the trapezoid block 29 contacts the bottom of the semicircular block 24, and the aim of fixing the conducting strip 12 and the copper sheet 5 after the conducting strip 3 is pressed to be in contact and electrified can be achieved; at this time, the second magnet 21 and the first magnet 14 are in the same horizontal plane, the repulsive force between the second magnet 21 and the first magnet 14 can enable the fixing column 20 to squeeze and fix the plug in the plug hole 4, if the plug is to be powered off and pulled out, the plug 3 is pressed down again, the plug 3 drives the fixing cylinder 23 to move down through the vertical rod 17 so that the trapezoid block 29 is gradually far away from the bottom of the semicircle block 24, when the inclined plane of the trapezoid block 29 contacts the inclined plane of the movable block 26, the fixing cylinder 23 continues to move down so that the movable block 26 squeezes the trapezoid block 29 to shrink and the trapezoid block 29 can be moved to the lower part of the movable block 26. In the process that the reset spring 7 and the elastic air bag 18 restore to the initial state to drive the insert block 3 to move upwards to restore to the initial position, the insert block 3 drives the fixed cylinder 23 to move upwards through the vertical rod 17, the fixed cylinder 23 drives the movable block 26 to slide upwards on the supporting rod 25 through the trapezoid block 29 because the gravity of the movable block 26 is smaller than the elastic force of the pressing spring on the trapezoid block 29, when the trapezoid block 29 drives the movable block 26 to move upwards to enable the upper half of the movable block 26 to be matched with the clamping groove 27, the fixed cylinder 23 continues to move upwards to enable the trapezoid block 29 to move on the lower inclined plane of the movable block 26 and be extruded and contracted, and at the moment, the trapezoid block 29 moves to the upper side of the semicircular block 24 along the lower inclined plane of the movable block 26 and moves to the initial position; at this time, the first magnet block 14 is far away from the second magnet block 21 and is not in the same horizontal direction, under the action force of the elastic rope 16, the elastic rope 16 recovers to the initial state to shrink and pull the first magnet block 14 to drive the fixing column 20 to the initial position, at this time, the fixing column 20 is far away from the plug in the jack 4, at this time, the plug can be taken out from the jack 4 without being fixed, and at this time, the pressure applied to the plug 3 is cancelled. Under the action of the reset spring 7, the reset spring 7 returns to the initial state and drives the base 6 and the conductive sheet 12 to move upwards, and the conductive sheet 12 drives the insert block 3 to move upwards through the copper sheet 5. After the reset spring 7 is restored to the initial state, the elastic air bag 18 can restore to the initial state and push the inserting block 3 to drive the copper sheet 5 to move upwards again under the acting force of the elastic air bag 18, so that the copper sheet 5 is far away from the conducting strip 12, at the moment, the power is cut off, the purposes of automatically fixing and conveniently taking out the plug are achieved, the using effect can be effectively improved, the labor is saved, the situation that the plug is easy to break away from due to the collision of external force in the power-on using process is avoided, and the using stability in the power-on process is effectively improved.

In the process of electrifying, the trapezoid block 29 is located at the bottom of the semicircular block 24, when electrifying and overloading are carried out, the overload controller 13 controls the electrifying spring 28 to electrify, the overload controller 13 is in the prior art, excessive details are not needed, the electrifying spring 28 can shrink after electrifying, the electrifying spring 28 can pull the connecting plate 22 to slide downwards on the rod wall of the vertical rod 17, the connecting plate 22 can drive the base 6 and the conducting strip 12 to move downwards and press the reset spring 7 when moving downwards, in the process of moving downwards the connecting plate 22, the air inlet end of the elastic air bag 18 can inhale and restore to the initial state, after the elastic air bag 18 restores to the initial state, the conducting strip 12 and the copper sheet 5 can be separated, overload and outage can be realized at the moment, the overload and outage protection function is achieved, and the situation that the overload and the current exceeding the design workload of the overload and the electric equipment components are overheated, burnt out and damaged can be avoided.

As shown in fig. 2,4 and 7, a mounting cavity 31 is formed in the slot 2, an expansion air bag 32 is fixedly mounted on the bottom wall of the inner cavity of the mounting cavity 31, a top plate 33 is fixedly mounted on the top of the expansion air bag 32, the top plate 33 is slidably mounted in the inner cavity of the mounting cavity 31, contact blocks 34 are fixedly mounted on the top of the top plate 33 and the top wall of the inner cavity of the mounting cavity 31, L-shaped telescopic rods 35 are fixedly mounted on the base 6 on one side close to the mounting cavity 31, cooling fins 36 are arranged in the expansion air bag 32, and the bottom ends of the two groups of L-shaped telescopic rods 35 penetrate through the insertion plate 1 and the expansion air bag 32 and extend into the expansion air bag 32 to be fixedly connected with the cooling fins 36.

A fixed cavity 30 is arranged above the mounting cavity 31, the fixed cavity 30 is arranged in the plug board 1, a U-shaped plate 38 is arranged in the inner cavity of the fixed cavity 30 in a sealing sliding manner, the U-shaped plate 38 is fixedly connected with the top of the top plate 33, a through hole 37 which is matched with the fixed cavity 30 is arranged between the fixed cavity 30 and the plug board 2, and a through hole is formed in the U-shaped plate 38 and matched with the through hole 37; the fan 39 is fixedly arranged on the top wall of the inner cavity of the fixed cavity 30, the two contact blocks 34 are connected with the fan 39 in series, the circulating channel 40 is arranged in the strip board 1, one end of the circulating channel 40 is communicated with the outside, and the fixed cavity 30 is communicated with the inside of the circulating channel 40.

By adopting the technical scheme, the L-shaped telescopic rod 35 is a vertical rod and an L-shaped cylinder, the top end of the vertical rod is connected with the base 6, the lower end of the vertical rod is connected with the top end of the L-shaped cylinder in a sliding way, the base 6, the connecting plate 22 and the L-shaped telescopic rod 35 are all made of graphite materials, the copper sheet 5, the conducting strip 12 and the conducting wire 8 are not provided with electricity transmission, when the copper sheet is electrified and heated, the copper sheet 5, the conducting strip 12 and the conducting wire 8 generate heat, the heat can be transmitted to the L-shaped telescopic rod 35 through the base 6, the setting of the L-shaped telescopic rod 35 can not block the base 6 in the moving process, the L-shaped telescopic rod 35 can transmit the heat to the radiating fin 36, the radiating fin 36 radiates heat in the expansion air bag 32, the pressure of gas in the expansion air bag 32 can be increased, the expansion air bag 32 can push the top plate 33 to move upwards, the U-shaped plate 38 can be driven to move upwards simultaneously, the upper and lower sets of contact blocks 34 are respectively connected with the first conductive strip 9 and the second conductive strip 10 in series, when the two sets of contact blocks 34 are contacted, the fan 39 is controlled to be started, meanwhile, the U-shaped plate 38 moves upwards to enable the through holes on the upper and lower sets of contact blocks to be communicated with the through holes 37 on the plug-in strip 1, at the moment, the fan 39 blows air into the fixed cavity 30, the fan 39 sucks external air into the fixed cavity 30 through the circulating channel 40 while blowing air, the air in the circulating channel 40 flows and cools the top of the plug-in strip 1 at the position of the plug-in strip 3, the cooling effect can be effectively improved, meanwhile, the fan 39 blows air in the fixed cavity 30 into the plug-in strip 2 through the through holes 37, the air in the plug-in strip 2 can be cooled, the air in the plug-in strip 2 can be discharged again through gaps between the plug-in strip 3 and the inner cavity wall of the plug-in strip 2, the socket has the functions of heat dissipation and temperature reduction, can effectively avoid the overload condition caused by heating in the electrifying process, can avoid the condition that the wire insulating material becomes soft, crisp and even melt due to overhigh temperature, and can prevent the situation that the plug and the socket are in poor contact or break due to high temperature, thereby effectively improving the safety performance of the socket.

As shown in fig. 4 and 6, the elastic force of the elastic balloon 18 is smaller than the elastic force of the return spring 7.

The distance between the copper sheet 5 and the adjacent conductive sheet 12 is smaller than the distance between the top of the trapezoid block 29 to the bottom of the semicircle block 24.

By adopting the technical scheme, the elastic force of the elastic air bag 18 is smaller than that of the reset spring 7, the elastic air bag 18 can be extruded firstly when the inserting block 3 moves downwards, the reset spring 7 can be extruded by the base 6 only when the inserting block 3 moves downwards continuously when the copper sheet 5 contacts with the conducting strip 12, and the copper sheet 5 and the conducting strip 12 below the copper sheet are smaller than the distance from the top of the trapezoid block 29 to the bottom of the semicircle block 24 before the trapezoid block 29 moves to the bottom of the semicircle block 24, so that the copper sheet 5 contacts with the conducting strip 12 firstly, and the trapezoid block 29 can be propped against the bottom of the semicircle block 24 conveniently by the elastic force of the reset spring 7.

As shown in fig. 3, 6 and 7, the distance between the two contact blocks 34 is equal to the distance between the through-hole 37 and the through-hole of the U-shaped plate 38.

The size of the inside of the clamping groove 27 is equal to half of the size of the movable block 26.

By adopting the above technical solution, the distance between the two contact blocks 34 is equal to the distance between the through hole 37 and the through hole of the U-shaped plate 38, so that when the two contact blocks 34 are in contact, the through hole on the U-shaped plate 38 is exactly aligned with the through hole 37 in the strip 1. By having the inner cavity of the clamping groove 27 equal to half of the movable block 26, the trapezoid block 29 can slide directly from the lower inclined surface of the movable block 26 to the upper side of the semicircular block 24 when the upper half of the movable block 26 enters the clamping groove 27.

The using method comprises the following steps:

Firstly, a plug is inserted into the jack 4 from the plug 3, then the plug is pressed downwards to drive the plug 3 to move downwards, the plug 3 moves downwards to extrude the elastic air bag 18 to blow into the plug slot 2, air in the plug slot 2 can be discharged through a gap between the plug 3 and the inner cavity of the plug slot 2, dust falling into the top of the gap can be cleaned out, the plug 3 moves downwards and drives the fixed cylinder 23 to move downwards, meanwhile, the copper sheet 5 contacts with the conducting strip 12 and pushes the base 6 to move downwards and extrude the reset spring 7, the trapezoidal block 29 can be abutted against the bottom of the semicircular block 24 under the elasticity of the reset spring 7 to realize fixation through the cooperation of the trapezoidal block 29 and the semicircular block 24, at the moment, the first magnet block 14 can be in the same horizontal direction with the second magnet block 21, the plug in the jack 4 can be pushed to be fixed through repulsive force, after the movable block 26 is pushed into the clamping groove 27, the trapezoidal block 29 can be moved to the upper side of the semicircular block 24 through the cooperation of the trapezoidal block 29 and the movable block 26, and the second magnet block 21 can be pulled into the jack 4 can be fixed, and the plug can be pulled out of the jack 4. When the socket 2 is electrified and overloaded, the overload controller 13 controls the electrified spring 28 to shrink to drive the base 6 to move downwards, the elastic air bag 18 restores to an initial state so that the copper sheet 5 and the conductive sheet 12 are far away from each other to realize outage, when the temperature in the socket 2 is increased, the expansion air bag 32 is expanded through heat transfer of the L-shaped telescopic rod 35, then the two contact blocks 34 are controlled to be contacted with the control fan 39 to be opened, the electrified spring 28 moves upwards so that two adjacent groups of through holes 37 are communicated, then air blowing and cooling are carried out in the socket 2, and meanwhile, the upper half part of the socket board 1 and the position of the plug block 3 are cooled through the circulation channel 40 while air suction is carried out in the fixed cavity 30.

Although the present invention has been described in detail by way of example with reference to the accompanying drawings, the present invention is not limited thereto. Various equivalent modifications and substitutions for embodiments of the present invention may be made by those skilled in the art without departing from the spirit and substance of the present invention, and these modifications and substitutions are intended to be within the scope of the present invention.

Claims

1. The anti-overload power strip comprises a power strip (1), wherein a plurality of groups of slots (2) are uniformly formed in the top of the power strip (1), power blocks (3) are slidably arranged in each group of slots (2), two jacks (4) are formed in each group of power blocks (3), and the anti-overload power strip is characterized by further comprising a fixing mechanism, the fixing mechanism comprises through grooves (15) formed in the side walls of the power blocks (3), fixing columns (20) are arranged in the inner cavities of the through grooves (15), and balls (19) are uniformly arranged on the fixing columns (20) in a rolling mode; the balls (19) are contacted with the inner cavity walls of the adjacent through grooves (15); a first magnet block (14) is fixedly arranged on one side, close to the inner cavity wall of the slot (2), of the fixed column (20), and an elastic rope (16) is fixedly arranged between the first magnet block (14) and the inner cavity wall of the adjacent through slot (15); a second magnet block (21) is fixedly arranged on one side, close to the first magnet block (14), of the inner cavity wall of the slot (2); the first magnet block (14) and the adjacent second magnet block (21) are mutually exclusive.

2. The overload prevention power strip of claim 1, wherein: the bottom of the inner cavity of each jack (4) is fixedly provided with a copper sheet (5), a conducting strip (12) is arranged below the copper sheet (5), the bottom of the conducting strip (12) is fixedly provided with a base (6), and a reset spring (7) is fixedly arranged between the base (6) and the bottom wall of the inner cavity of the slot (2); the bottom of the conducting strip (12) is fixedly provided with a conducting wire (8); one of them in every group slot (2) the bottom of wire (8) is connected with first conducting strip (9), every group another in slot (2) the bottom of wire (8) is connected with second conducting strip (10), first conducting strip (9) with second conducting strip (10) are all installed in inserting row board (1), power cord (11) are installed jointly to first conducting strip (9) with one end of second conducting strip (10), every group two in slot (2) be connected with overload controller (13) between wire (8), overload controller (13) all fixed mounting in inserting row board (1).

3. The overload prevention power strip of claim 2, wherein: a connecting plate (22) is fixedly arranged between two adjacent groups of the bases (6); the bottoms of the inserting blocks (3) of each group are fixedly connected with vertical rods (17); the vertical rod (17) is in sliding connection with the connecting plate (22); elastic air bags (18) are arranged on the outer sides of the vertical rods (17); the elastic air bag (18) is arranged between the insert block (3) and the connecting plate (22); the air outlet end of the elastic air bag (18) is communicated with the inside of the slot (2), and the air inlet end of the elastic air bag (18) is communicated with the outside.

4. A power strip according to claim 3, wherein: the bottom end of the vertical rod (17) is fixedly provided with a fixed cylinder (23); a trapezoid block (29) is arranged on the inner cavity wall of the fixed cylinder (23); the bottom of the inner cavity of the fixed cylinder (23) is provided with semicircular blocks (24); the bottom wall of the inner cavity of each group of slots (2) is fixedly provided with a supporting rod (25); the rod walls of the support rods (25) are respectively provided with a movable block (26) in a sliding manner; a clamping groove (27) matched with the movable block (26) is formed in the bottom of the semicircular block (24), and the top end of the supporting rod (25) is fixedly connected with the top wall of the inner cavity of the clamping groove (27); and energizing springs (28) are fixedly arranged between the connecting plate (22) and the bottom wall of the inner cavity of the slot (2), and each group of energizing springs (28) are connected with the adjacent overload controller (13).

5. The overload prevention power strip of claim 2, wherein: the utility model discloses a flexible air conditioner, including slot (2) and base (6), the inner chamber diapire of installing cavity (31) fixed mounting has inflation gasbag (32), the top fixed mounting of inflation gasbag (32) has roof (33), roof (33) slidable mounting in the inner chamber of installing cavity (31), the top of roof (33) with the equal fixed mounting of inner chamber roof of installing cavity (31) has contact block (34), is close to all fixed mounting has L shape telescopic link (35) on base (6) of installing cavity (31) one side, be provided with fin (36) in inflation gasbag (32), two sets of the bottom of L shape telescopic link (35) all runs through insert row board (1) with inflation gasbag (32) and extend to in inflation gasbag (32) with fin (36) fixed connection.

6. The overload prevention power strip of claim 5, wherein: a fixing cavity (30) is arranged above the mounting cavity (31), the fixing cavity (30) is formed in the strip inserting plate (1), a U-shaped plate (38) is mounted in a sealing sliding manner in the inner cavity of the fixing cavity (30), the U-shaped plate (38) is fixedly connected with the top of the top plate (33), a through hole (37) which is matched with the slot (2) is formed between the fixing cavity (30) and the slot, and a through hole is formed in the U-shaped plate (38) in a matching manner; the utility model discloses a fixed cavity, including fixed cavity (30), inner chamber roof fixed mounting has fan (39), two contact block (34) jointly with fan (39) establish ties, circulation channel (40) have been seted up in inserting board (1), the one end of circulation channel (40) is linked together with the external world, in fixed cavity (30) with be linked together in circulation channel (40).

7. A power strip according to claim 3, wherein: the elastic force of the elastic air bag (18) is smaller than the elastic force of the return spring (7).

8. The overload prevention power strip of claim 4, wherein: the distance between the copper sheet (5) and the adjacent conducting strip (12) is smaller than the distance between the top of the trapezoid block (29) and the bottom of the semicircle block (24).

9. The overload prevention power strip of claim 6, wherein: the distance between the two contact blocks (34) is equal to the distance between the through holes of the U-shaped plate (38) and the through holes of the through holes (37).

10. The overload prevention power strip of claim 4, wherein: the size in the clamping groove (27) is equal to half of the size of the movable block (26).