CN113358905A

CN113358905A - Ammeter overload protection device

Info

Publication number: CN113358905A
Application number: CN202110706056.9A
Authority: CN
Inventors: 费贵淮; 武军华
Original assignee: Shenzhen City Singhang Electric Technology Co ltd
Current assignee: Shenzhen City Singhang Electric Technology Co ltd
Priority date: 2021-06-24
Filing date: 2021-06-24
Publication date: 2021-09-07
Anticipated expiration: 2041-06-24
Also published as: CN113358905B

Abstract

The invention discloses an ammeter overload protection device which comprises a protection box and an ammeter body penetrating through and fixedly mounted on the protection box, wherein an opening matched with the ammeter body is formed in the top of the protection box, and connecting plates are fixedly connected to the left side and the right side of the top of the protection box. This ammeter overload protection device, be connected with the parallelly connected form of remaining three overload protection subassembly through an overload protection subassembly, when guaranteeing overload protection subassembly normal use, carry out the circuit to rated power and insert, thereby when guaranteeing that the overload condition appears in a circuit, normal use still can be guaranteed to other circuits, when reducing circuit erection cost, make the circuit that breaks down of differentiation that the user can be rapid, overhaul the condition of facilitating for the circuit, and carry out orderly arrangement to the circuit of protecting incasement portion, the circuit is clear, surveyability, provide very big facility for maintainer's work.

Description

Ammeter overload protection device

Technical Field

The invention relates to the technical field of electric power safety equipment, in particular to an ammeter overload protection device.

Background

The main reason of overload is that the section of the lead is not properly selected, and the actual load exceeds the safe current of the lead; the phenomenon of 'small horse-drawn large vehicle' is also existed, that is, too much high-power equipment is connected in the line, and the load capacity of the distribution line is exceeded. The lighting circuit in important material warehouse, living place and public building, power circuit which may cause overload of wire or cable for long time, and insulated wire with delay sheath are laid on flammable or hard burning building component, the overload protection of circuit is preferably automatic switch.

The electric meter is an electric energy meter for short, and is also called an electric meter, a fire meter, an electric energy meter and a kilowatt hour meter for measuring electric energy, in the conventional household electricity, an overload protector is directly connected in series on the electric meter, thereby ensuring that the overload protector directly trips and breaks the circuit when the household power consumption exceeds the rated power, at the moment, all the household power consumption is cut off, the normal household power consumption is greatly influenced, and the family lighting circuit power is general less, and large-scale equipment power such as air conditioner, warm greatly of electricity is gone out to the kitchen and bathroom and is used electric quantity greatly, often need erect the circuit of different specifications, adopts same overload protection ware to carry out overload protection, leads to people to select the cable that surpasss standard specification to carry out the circuit under the inequality and erects, has increased the cost undoubtedly, and can not accurately judge out the concrete damage position in the household electricity.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides an ammeter overload protection device, which solves the problems that the same overload protector is adopted for overload protection, the line erection cost is increased, and the specific damage position in household electricity cannot be accurately judged.

(II) technical scheme

In order to achieve the purpose, the invention is realized by the following technical scheme: an ammeter overload protection device comprises a protection box and an ammeter body penetrating through and fixedly mounted on the protection box, wherein the top of the protection box is provided with an opening matched with the ammeter body, the left side and the right side of the top of the protection box are fixedly connected with connecting plates, the connecting plates and the ammeter body are fixedly connected through bolts, a first isolation plate and a second isolation plate are sequentially and fixedly mounted between the inner walls of the protection box from top to bottom, three first vertical plates are sequentially and fixedly connected between the bottom of the second isolation plate and the bottom of an inner cavity of the protection box from left to right, a second vertical plate is fixedly connected between the right side of the top of the first isolation plate and the top of the inner cavity of the protection box, an overload protection assembly is fixedly connected to the back of the protection box, positioned on the right side of the first vertical plate and the right side of the second vertical plate through a clamping mechanism in a clamping manner, and a model panel is arranged on the front side of the overload protection assembly, the input of ammeter body passes through wire and commercial power electric connection, the output wire of ammeter body run through the second riser and with one electric connection is realized to the input of overload protection subassembly, one the output wire of overload protection subassembly runs through first division board, second division board and guard box in proper order and extends to the outside of guard box, and is three in addition the input wire of overload protection subassembly all runs through the second division board and through parallelly connected form and one the output wire electric connection of overload protection subassembly, it is three in addition the output wire of overload protection subassembly runs through the guard box and extends to the outside of guard box.

Preferably, the right side of second division board bottom has the heat dissipation fan through connecting block fixed mounting, the right side of first riser is provided with first dust filtration net, logical groove has been seted up in the left side at second division board top.

Preferably, the right side of guard box and the below that is located the second division board are provided with the second and strain the dirt net, the right side of guard box just is located and communicates between the relative one side of first division board and second division board and has the arc to lead the case, and the output that the case was led to the arc extends to the right side of second and strains the dirt net.

Preferably, between the bottom of second division board and the bottom of guard box inner chamber and be located the left side slidable mounting who sets up the first riser in the leftmost side and have the drying plate, there is the insulated door in the front of guard box through hinge joint.

Preferably, just be located threely between the relative one side of first division board and second division board there is one directly over the first riser respectively slidable mounting have with one the cable card frame of overload protection subassembly output end wire looks adaptation, the draw-in groove has been seted up at the back of cable card frame, and the inside joint of draw-in groove has the rubber fixture block.

Preferably, clamping mechanism twists post, gangbar, carriage release lever and extrusion piece including the single thread, and the surface that the post was twisted to the single thread comprises screw thread portion and smooth portion, the surface that the post one end was twisted to the single thread is rotated through the one end of rotating bearing piece and gangbar and is connected, the rotating bearing piece includes bearing and turning block, the surface of single thread twisting post one end and the inner circle fixed connection of bearing, the outer lane of bearing and the front side fixed connection of turning block, the one end of gangbar is passed through this turning block and is connected with the bearing rotation, the other end of gangbar is passed through the turning block and is connected with the one end rotation of carriage release lever, the one end of carriage release lever and one side fixed connection of extrusion piece.

Preferably, the back of the overload protection assembly is fixedly connected with a positioning plate, and the back of the positioning plate is fixedly connected with a pin frame matched with the extrusion block.

Preferably, the back of the inner cavity of the protective box is provided with a blind groove matched with the single-thread screwing column, the linkage rod, the moving rod, the extrusion block, the positioning plate and the pin frame, the top and the bottom of the inner cavity of the blind groove are fixedly connected with a middle limiting block matched with the positioning plate and the moving rod, the outer surface of the single-thread screwing column penetrates through a back partition plate of the inner cavity of the protective box and extends to the inside of the blind groove, and the outer surface of the single-thread screwing column is in threaded connection with the inner surface of the back partition plate of the inner cavity of the protective box.

(III) advantageous effects

The invention provides an ammeter overload protection device. The method has the following beneficial effects:

(1) the ammeter overload protection device is characterized in that four groups of overload protection components are arranged in a protection box, and one overload protection component is connected with the rest three overload protection components in parallel, so that the normal use of the overload protection components is ensured, meanwhile, the circuit access can be carried out according to the rated power, thereby ensuring the separate protection of the lighting circuit, the air conditioning circuit, the kitchen circuit and the like, when the overload condition occurs in one circuit, other lines can still be ensured to be normally used, the line erection cost is reduced, simultaneously, a user can quickly identify the line with the fault, convenient conditions are provided for line maintenance, and under the matching arrangement of the first isolation plate, the second isolation plate, the first vertical plate and the second vertical plate, the lines inside the protection box are arranged orderly, the lines are clear and clear at a glance, and great convenience is provided for the work of maintainers.

(2) This ammeter overload protection device, through the heat dissipation fan, lead to the groove, the second dust filter net, the cooperation setting of case and dry plate is led to the arc, utilize the heat dissipation fan to accelerate the air flow of protection incasement portion, utilize the dry plate to guarantee the drying of exhaust air, lead under the setting of case at the arc, lead in the protection case with the partial air after the drying in, realize dry gaseous effective utilization, and under the setting of second dust filter net, can effectively avoid external impurity to enter into the protection case, effectively guarantee the normal use of overload protection subassembly.

(3) This ammeter overload protection device, setting through latch mechanism, press the single thread and twist the post, just can drive extrusion piece extrusion pin frame, then rotate the single thread and twist the post and just can realize the fixed to the pin frame, the post is twisted to the single thread of antiport, the single thread is taken out outward and is twisted the post, the extrusion piece can break away from the pin frame, the dismouting is rapid, the swift installation of overload protection subassembly has been realized, the setting of cooperation locating plate and blind groove, carry out position to the overload protection subassembly and prescribe a limit to, the stability of device has been guaranteed effectively.

(4) The single-head threaded tightening column consists of a part of polished rods, and because the stroke of the extrusion block 19 is basically fixed in the application, the threaded tightening column which is fully distributed with threads is not required to be tightened and loosened slowly, so that the single-head threaded tightening column designed by the application can be quickly tightened and loosened by the part of polished rods.

Drawings

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

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

FIG. 3 is a schematic view of the connection between the latch mechanism and the overload protection assembly according to the present invention;

FIG. 4 is a schematic structural view of the arc guide box of the present invention;

fig. 5 is a schematic structural view of the cable clamp according to the present invention.

In the figure, 1, a protection box; 2. an electricity meter body; 3. a first separator plate; 4. a second separator plate; 5. a first vertical plate; 6. a second vertical plate; 7. a clamping mechanism; 8. an overload protection component; 9. a heat dissipation fan; 10. a through groove; 11. a second dust filter screen; 12. an arc guide box; 13. drying the plate; 14. a cable clamp frame; 15. screwing the column by single-head threads; 16. a linkage rod; 17. a first dust filter screen; 18. a travel bar; 19. extruding the block; 20. positioning a plate; 21. a pin frame; 22. a blind groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, an embodiment of the present invention provides a technical solution: the utility model provides an ammeter overload protection device, including protection case 1 and the ammeter body 2 of running through and fixed mounting on protection case 1, from last to down in proper order fixed mounting have first division board 3 and second division board 4 between the inner wall of protection case 1, turn right three first riser 5 of fixedly connected with in proper order from a left side between the bottom of second division board 4 and the bottom of protection case 1 inner chamber, fixedly connected with second riser 6 between the right side at first division board 3 top and the top of protection case 1 inner chamber, protection case 1's back and the right side that is located first riser 5 and second riser 6 all are fixed with overload protection subassembly 8 through clamping mechanism 7 joint, overload protection subassembly 8 select common air switch on the market can, and in four overload protection subassemblies 8, down from the upper right side, turn left again, rated power reduces the setting in proper order, the output wire of ammeter body 2 runs through second riser 6 and realizes electric connection with the input of an overload protection subassembly 8 The output end lead of one overload protection component 8 sequentially penetrates through the first isolation plate 3, the second isolation plate 4 and the protection box 1 and extends to the outside of the protection box 1, the input end leads of the other three overload protection components 8 all penetrate through the second isolation plate 4 and are electrically connected with the output end lead of one overload protection component 8 in a parallel connection mode, the output end leads of the other three overload protection components 8 penetrate through the protection box 1 and extend to the outside of the protection box 1, further, the four groups of overload protection components 8 are arranged in the protection box 1 and are connected with the remaining three overload protection components 8 in a parallel connection mode through one overload protection component 8, the normal use of the overload protection components 8 is ensured, meanwhile, the circuit access can be carried out aiming at rated power, and therefore, the separate protection is carried out on lighting circuits, air conditioning circuits, kitchen circuits and the like, when the overload condition appears in a circuit, normal use still can be guaranteed to other circuits, when reducing the circuit and erects the cost, make the circuit that breaks down of discernment that the user can be rapid, for the circuit overhauls the condition of facilitating, and under first division board 3, second division board 4, first riser 5 and second riser 6's cooperation set up, carry out orderly arrangement to the circuit of protection case 1 inside, the circuit is clear, surveyability, provide very big facility for maintainer's work.

As preferred scheme, there is heat dissipation fan 9 on the right side of second division board 4 bottom through connecting block fixed mounting, and the right side of first riser 5 is provided with first dust filter 17, and logical groove 10 has been seted up to the left side at second division board 4 top.

As the preferred scheme, the right side of guard box 1 and the below that is located second division board 4 are provided with second and strain dirt net 11, and the right side of guard box 1 and be located and communicate between the relative one side of first division board 3 and second division board 4 has arc guide box 12, and the output that the arc guided box 12 extends to the right side of second and strain dirt net 11, explain further that, arc guide box 12 heat conduction ceramic chip makes, can effectually distribute away the heat of inside transmission air.

Preferably, a drying plate 13 is slidably mounted on the left side of the leftmost position between the bottom of the second isolation plate 4 and the bottom of the inner cavity of the protection box 1, an isolation door is hinged to the front of the protection box 1 through a hinge, and the drying plate 13 is of a screen frame structure with a drying agent inside.

As a preferred scheme, a cable clamping frame 14 which is matched with a wire at the output end of one overload protection assembly 8 is slidably mounted between the opposite sides of the first isolation plate 3 and the second isolation plate 4 and is positioned right above the three first vertical plates 5, and further, the cable clamping frame 14 can clamp a cable to avoid messy lines.

As a preferred scheme, the clamping mechanism 7 comprises a single-thread screwing column 15, a linkage rod 16, a moving rod 18 and an extrusion block 19, the outer surface of one end of the single-thread screwing column 15 is rotatably connected with one end of the linkage rod 16 through a rotating bearing block, the other end of the linkage rod 16 is rotatably connected with one end of the moving rod 18 through a rotating block, one end of the moving rod 18 is fixedly connected with one side of the extrusion block 19, the back of the overload protection assembly 8 is fixedly connected with a positioning plate 20, the back of the positioning plate 20 is fixedly connected with a pin frame 21 matched with the extrusion block 19, the back of the inner cavity of the protection box 1 is provided with a blind groove 22 matched with the single-thread screwing column 15, the linkage rod 16, the moving rod 18, the extrusion block 19, the positioning plate 20 and the pin frame 21, the outer surface of the single-thread screwing column 15 penetrates through a back partition plate of the inner cavity of the protection box 1 and extends to the inside of the blind groove 22, and the outer surface of the single-thread screwing column 15 is in threaded connection with the inner surface of the partition plate at the back of the inner cavity of the protection box 1, further, the threaded portion on the surface of the single-thread screw post 15 is used for fixing, and the smooth portion is convenient to slide, so that convenience is provided for quick clamping and fixing of the pin frame 21 and the extrusion block 19.

When the household electric power overload protection device works, firstly, the protection box 1 is fixed at a mounting point by using screws, then, the electric meter body 2 is fixed on the protection box 1 by using bolts, an input cable of a minimum power circuit in household electric power is connected in series with an output end lead of the overload protection assembly 8 with the lowest rated power set at the leftmost side, then, the circuit connection of the other three groups of overload protection assemblies 8 is sequentially completed according to the power sequence, then, a mains supply cable is connected onto the electric meter body 2, an isolation door is closed, a switch is started, the circuit overload protection can be carried out, in the operation process, the heat dissipation fan 9 is started, so that air in the protection box 1 is sequentially led out to the second dust filtration net 11 through the three first dust filtration nets 17, the drying plate 13 and the through groove 10 and then through the arc-shaped guide box 12, a part of dry hot air is dissipated, a part of the dry hot air enters the protection box 1 again, and a fault occurs (except the overload protection assembly 8 directly electrically connected with the electric meter body 2, because this overload protection subassembly 8 breaks down, when all lines of family directly cut off the power supply), the overload protection subassembly 8 that corresponds trips, the user directly fixes a position the circuit that breaks down according to overload protection subassembly 8 model, meanwhile, all the other lines keep normal use, when carrying out overload protection subassembly 8 installation, insert locating plate 20 in blind groove 22, directly press single thread and twist post 15, promote gangbar 16 extrusion carriage 18, make extrusion piece 19 block go into in cotter frame 21, then rotate single thread and twist post 15, can accomplish overload protection subassembly 8's installation fixed, when needing to dismantle, single thread is twisted post 15 in the reverse rotation, then single thread is twisted post 15 and is taken out, can make extrusion piece 19 break away from cotter frame 21, it can directly to take off overload protection subassembly 8.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The use of the phrase "comprising one of the elements does not exclude the presence of other like elements in the process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an ammeter overload protection device, includes guard box (1) and ammeter body (2) of running through and fixed mounting on guard box (1), its characterized in that: from last to down in proper order fixed mounting have first division board (3) and second division board (4) between the inner wall of guard box (1), turn right in proper order fixedly connected with threely between the bottom of second division board (4) and guard box (1) inner chamber from a left side between first riser (5), fixedly connected with second riser (6) between the right side at first division board (3) top and the top of guard box (1) inner chamber, the back of guard box (1) and the right side that is located the right side of first riser (5) and right side of second riser (6) all are fixed with overload protection subassembly (8) through joint mechanism (7) joint, the output wire of ammeter body (2) runs through second riser (6) and with one electric connection is realized to the input of overload protection subassembly (8), one the output wire of overload protection subassembly (8) runs through first division board (3) in proper order, Second division board (4) and guard box (1) and extend to the outside of guard box (1), it is three in addition the input wire of overload protection subassembly (8) all runs through second division board (4) and through parallelly connected form and one the output wire electric connection of overload protection subassembly (8), it is three in addition the output wire of overload protection subassembly (8) runs through guard box (1) and extends to the outside of guard box (1).

2. An electricity meter overload protection apparatus as set forth in claim 1, wherein: the right side of second division board (4) bottom has heat dissipation fan (9) through connecting block fixed mounting, the right side of first riser (5) is provided with first dust filter (17), logical groove (10) have been seted up to the left side at second division board (4) top.

3. An electricity meter overload protection apparatus as set forth in claim 2, wherein: the right side of guard box (1) and the below that is located second division board (4) are provided with second dust filtration net (11), the right side of guard box (1) and be located intercommunication have arc to lead case (12) between first division board (3) and the relative one side of second division board (4), and the output that the arc led case (12) extends to the right side of second dust filtration net (11).

4. An electricity meter overload protection apparatus as set forth in claim 3, wherein: the drying device is characterized in that a drying plate (13) is arranged between the bottom of the second isolation plate (4) and the bottom of the inner cavity of the protection box (1) and is located on the left side where the first vertical plate (5) is arranged, and the front of the protection box (1) is hinged to an isolation door through a hinge.

5. An electricity meter overload protection device as claimed in claim 4, wherein: and a cable clamping frame (14) matched with an output end wire of the overload protection assembly (8) is respectively and slidably mounted right above the first vertical plate (5) and is positioned between one opposite sides of the first isolation plate (3) and the second isolation plate (4).

6. An electricity meter overload protection apparatus as set forth in claim 5, wherein: clamping mechanism (7) are twisted post (15), gangbar (16), carriage release lever (18) and extrusion piece (19) including single-end screw thread, the surface of single-end screw thread twisting post (15) one end is rotated through the one end of rotating bearing piece with gangbar (16) and is connected, the other end of gangbar (16) is rotated through the one end of swivel block with traveller (18) and is connected, one end of traveller (18) and one side fixed connection of extrusion piece (19).

7. An electricity meter overload protection apparatus as set forth in claim 6, wherein: the back of the overload protection assembly (8) is fixedly connected with a positioning plate (20), and the back of the positioning plate (20) is fixedly connected with a pin frame (21) matched with the extrusion block (19).

8. An electricity meter overload protection apparatus as set forth in claim 7, wherein: the back of guard box (1) inner chamber is seted up with blind groove (22) of single thread twisting post (15), gangbar (16), carriage release lever (18), extrusion piece (19), locating plate (20) and round pin frame (21) looks adaptation, the surface that single thread was twisted post (15) runs through the back baffle of guard box (1) inner chamber and extends to the inside of blind groove (22), and the surface that single thread was twisted post (15) is connected with the internal surface threaded connection of guard box (1) inner chamber back baffle.