CN203987664U - Deadweight protector - Google Patents
Deadweight protector Download PDFInfo
- Publication number
- CN203987664U CN203987664U CN201420308959.7U CN201420308959U CN203987664U CN 203987664 U CN203987664 U CN 203987664U CN 201420308959 U CN201420308959 U CN 201420308959U CN 203987664 U CN203987664 U CN 203987664U
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- CN
- China
- Prior art keywords
- protector
- deadweight
- sheet metal
- lever
- connecting plug
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of deadweight protector, power connecting plug, protector seat, deadweight safety protection switch and holding circuit four parts, consist of, power connecting plug is connected with protector seat by electric wire, and is connected into deadweight safety protective circuit; The circular hole that has a perforation in the middle of protector seat upper and lower covers; inside is provided with the installation cavity of rectangle; the deadweight safety protection switch that installation is comprised of lever, pin, gravity regulator, spring and sheet metal assembly; the hemispherical top of lever one end is exposed at protector seat outside; the other end is positioned at sheet metal assembly below; spring fitting is between hemispherical top and gravity regulator; sheet metal assembly is comprised of insulating base, insulation sleeve and two sheet metals, and two sheet metals are connected with the double-end wire of live wire in power connecting plug respectively.Economical and practical, cost is low, simple in structure, highly versatile, goes for multiple electrical equipment, especially domestic electric heating kettle.
Description
Technical field
The present invention relates to a kind of deadweight protector, belong to Household electric appliance safety resist technology field.
Background technology
In daily life, have a lot of electrical equipment in use, its deadweight is constantly occurring to change, and electric kettle is one of the most representative electrical equipment.General electric kettle is all with alarm device, and its operation principle is that the steam that utilizes boiling water to produce excites alarm device, thereby plays alarm effect.Also have in a class electric kettle with temperature control power-off system.Whether the operation principle of temperature control power-off system is to come control circuit to be communicated with by temperature sensor, when water temperature reaches setting, and can auto-breaking.
If left unguarded, so obviously alarm device does not have any power-off protection effect.The long-term work of temperature control power-off system, in the moistening environment of high temperature, is easily broken down, and causing can not auto-breaking.So unmanned in the situation that, electric kettle all likely faces the danger of dryouting, and gently burns out kettle, heavy initiation fire.
The invention provides a kind of deadweight protector, its main purpose is to provide safety precautions one for the electrical equipment that the deadweights such as electric kettle are occurring to change constantly.
Summary of the invention
The invention provides a kind of deadweight protector, its feature is comprised of power connecting plug, protector seat, deadweight safety protection switch and holding circuit four major parts.
The front end of power connecting plug has three little grooves, in each groove, is provided with sheet metal, and its structure is equivalent to the output plug of power line, for connecting circuit power input socket; There is a big groove power connecting plug rear end, is provided with three metal inserts in groove, and its structure is equivalent to appliances power source input socket, for the output plug of connecting power line.Three little grooves of power connecting plug front end are corresponding one by one with three metal inserts of rear end, belong to respectively live wire, zero line and ground wire passage.Two passages of zero line and ground wire are connected the metal insert of the sheet metal of front end and rear end by wire respectively, before and after the live wire passage of power connecting plug, disconnect, and be connected, and be connected into deadweight safety protective circuit by electric wire with protector seat.Power connecting plug is connected with protector seat by electric wire.
Protector seat is comprised of upper cover and lower cover, has the circular hole of a up/down perforation in the middle of upper cover, and the circular hole of lower cover is provided with screw thread, and gravity regulator is installed, and protector seat inside is provided with the installation cavity of rectangle, with circular hole UNICOM; The back side is peripheral and be provided with Screw assembly hole near near center, for installation protector seat lower cover.Protector seat lower cover upper surface centre bit is equipped with a cylindrical boss, and its size is more smaller than the circular hole of the middle perforation of upper cover, and there is a screwed hole running through at boss center, for gravity regulator is installed; Outside the back side, be arranged with feet, near each feet and protector lower cover center, position is provided with Screw assembly hole, by screw, upper cover and lower cover is installed together.
Deadweight safety protection switch is comprised of lever, pin, gravity regulator, spring and sheet metal assembly, lever one end is provided with hemispherical top, the hemisphere face of hemispherical top passes the circular hole in the middle of protector seat upper cover and is exposed at outside protector seat upper cover upper surface, the back side, hemispherical top is provided with a cylinder shape groove, for mounting spring; In the middle of lever, be provided with circular hole, by pin, be arranged in the installation cavity of protector seat; After installation, the lever other end is positioned at sheet metal assembly below.Gravity regulator is cylindrical-shaped structure, and cylindrical outer surface is provided with screw thread, is arranged in the screwed hole at protector seat lower cover boss center; Cylinder one end is provided with cylinder shape groove, for mounting spring; The other end is provided with yi word pattern groove, for regulating the relative position of gravity regulator and lever top.Sheet metal assembly is comprised of insulating base, insulation sleeve and two elastomeric sheet metals; sheet metal is arranged on insulating base; insulation sleeve is enclosed within whole sheet metal assembly outside; play proof and electric leakage-proof safety effect; sheet metal assembly is arranged on by insulating base in the installation cavity of protector seat, and two sheet metals are connected with the double-end wire of live wire in power connecting plug respectively.
Power connecting plug, deadweight safety protection switch and wire form the holding circuit of deadweight protector, from live wire two ends in power line power connecting plug, draw two wires, are connected with two sheet metals in deadweight safety protection switch.By the lever of deadweight safety protection switch, controlled the closure of two sheet metals.
Deadweight protector advantage be economical and practical, cost is low, simple in structure, highly versatile, goes for multiple electrical equipment, especially electric kettle.In average family, there is applicability widely.
Accompanying drawing explanation
Fig. 1 is the three-view diagram of deadweight protector;
Fig. 2 is the side view of deadweight protector;
Fig. 3 is the front view of deadweight protector;
Fig. 4 is the top view of deadweight protector;
Fig. 5 is that the cut-away view of deadweight protector is also the A-A view of Fig. 4;
Fig. 6 is the B detail drawing of Fig. 5;
Fig. 7 is the dorsal view of protector seat upper cover;
Fig. 8 is the top view of protector seat upper cover;
Fig. 9 is the C-C cutaway view of Fig. 8;
Figure 10 is the stereogram that protector seat upper cover is seen from bottom to top;
Figure 11 is the stereogram that protector seat upper cover is seen from the top down;
Figure 12 is the dorsal view of protector seat lower cover;
Figure 13 is the top view of protector seat lower cover;
Figure 14 is the D-D cutaway view of Figure 13;
Figure 15 is the cutaway view of deadweight safety protection switch lever;
Figure 16 is the stereogram that deadweight safety protection switch lever is seen from the top down;
Figure 17 is the stereogram that deadweight safety protection switch lever is seen from bottom to top;
Figure 18 is the front view of gravity regulator;
Figure 19 is the three-view diagram of gravity regulator;
Figure 20 is the top view of gravity regulator;
Figure 21 is the E-E cutaway view of Figure 20;
Figure 22 is the structure chart of deadweight safety protection switch sheet metal assembly;
Figure 23 is the installation diagram of deadweight protector;
Figure 24 is holding circuit schematic diagram.
In Fig. 5 and Fig. 6, number corresponding parts and be respectively:
The 1st, power connecting plug; The 2nd, electric wire; The 3rd, protector seat upper cover; The 4th, protector seat lower cover; The 5th, the top of deadweight safety protection switch lever one end; The 6th, deadweight safety protection switch lever; The 7th, pin; The 8th, the sheet metal assembly of deadweight safety protection switch; The 9th, gravity regulator; The 10th, spring; The 11st, screw.
The specific embodiment
Shown in Fig. 5, take electric kettle as example, the deadweight protector specific embodiment is:
Deadweight protector is kept flat, and feet down.The electric kettle of filling water is placed on the protector seat of deadweight protector.Now, due to the gravity of kettle, the hemispherical top of deadweight safety protection switch lever one end can be pressed downwards, the lever other end can upwards promote sheet metal assembly simultaneously, makes two metal sheets contact, thereby connects live wire.Now, again by the front end connecting circuit power input socket of power connecting plug, rear end connecting power line output plug, has just connected power supply and electric kettle.
When the water level of electric kettle declines, the weight of whole electric kettle also can decline thereupon.When the weight of electric kettle drops to certain value, the elastic force of spring overcomes the weight of electric kettle, and hemispherical one end of lever is upwards pushed away, and the other end of lever moves downward thereupon.Sheet metal in sheet metal assembly, under the elastic force effect of self, recovers home position, and separately, holding circuit disconnects two metal sheets, thereby plays the power-off protection effect to electric kettle.
By adjusting gravity regulator, can adjust the precompression of spring, thereby adjust the power (gravity while being kettle triggering power-off protection) of lever top jack-up kettle.
Claims (2)
- One kind deadweight protector, its feature is comprised of power connecting plug, protector seat, deadweight safety protection switch and holding circuit four parts, before and after the live wire passage of power connecting plug, disconnect, by electric wire, be connected with protector seat, and be connected into deadweight safety protective circuit, the circular hole that has a perforation in the middle of protector seat upper and lower covers, the circular hole of lower cover is provided with screw thread, and gravity regulator is installed, and protector seat inside is provided with the installation cavity of rectangle, with circular hole UNICOM, deadweight safety protection switch is by lever, pin, gravity regulator, spring and sheet metal assembly form, lever one end is provided with hemispherical top, the hemisphere face of hemispherical top is through the circular hole in the middle of protector seat upper cover and be exposed at protector seat upper cover outside, spring fitting is between hemispherical top and gravity regulator, sheet metal assembly is by insulating base, insulation sleeve and two sheet metals form, sheet metal is arranged on insulating base, insulation sleeve is enclosed within whole sheet metal assembly outside, sheet metal assembly is arranged in the installation cavity of protector seat by insulating base, two sheet metals are connected with the double-end wire of live wire in power connecting plug respectively, lever is arranged in the installation cavity of protector seat by pin, the first end of non-dome of lever is positioned at sheet metal assembly below.
- 2. deadweight protector according to claim 1; it is characterized by: power connecting plug, deadweight safety protection switch and wire form the holding circuit of deadweight protector; from live wire two ends in power line power connecting plug, draw two wires; be connected with two sheet metals of deadweight safety protection switch sheet metal assembly, by the lever of deadweight safety protection switch, controlled the closure of two sheet metals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420308959.7U CN203987664U (en) | 2014-06-11 | 2014-06-11 | Deadweight protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420308959.7U CN203987664U (en) | 2014-06-11 | 2014-06-11 | Deadweight protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203987664U true CN203987664U (en) | 2014-12-10 |
Family
ID=52027760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420308959.7U Expired - Fee Related CN203987664U (en) | 2014-06-11 | 2014-06-11 | Deadweight protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203987664U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105212763A (en) * | 2014-06-11 | 2016-01-06 | 叶天云 | Deadweight protector |
-
2014
- 2014-06-11 CN CN201420308959.7U patent/CN203987664U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105212763A (en) * | 2014-06-11 | 2016-01-06 | 叶天云 | Deadweight protector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141210 Termination date: 20150611 |
|
| EXPY | Termination of patent right or utility model |