CN203000802U - Safety valve device used for dust remover - Google Patents
Safety valve device used for dust remover Download PDFInfo
- Publication number
- CN203000802U CN203000802U CN 201220709299 CN201220709299U CN203000802U CN 203000802 U CN203000802 U CN 203000802U CN 201220709299 CN201220709299 CN 201220709299 CN 201220709299 U CN201220709299 U CN 201220709299U CN 203000802 U CN203000802 U CN 203000802U
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- China
- Prior art keywords
- safety valve
- motor
- dust
- pressure switch
- valve device
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Abstract
The utility model relates to a safety valve device used for a dust remover. The dust remover comprises a casing, a motor arranged in the casing, a motor air inlet channel and a motor air outlet channel. The safety valve device comprises a safety valve arranged in the motor air inlet channel. The safety valve device is characterized by further comprising a pressure switch communicated with the safety valve and a dust full warning device electrically connected with the pressure switch. The safety valve device enables the pressure switch and the safety valve air inlet channel to be communicated. The dust full warning device acts when the safety valve is opened. The safety valve device improves action time accuracy of the dust full warning device and can intuitively reflect starting working condition of the safety valve.
Description
Technical field
The utility model relates to a kind of motor protection device of dust catcher, relates in particular to a kind of relief valve device.
Background technology
Dust catcher is that daily life brings many facilities, wherein common are vacuum cleaner.Vacuum cleaner generally includes housing, is located at motor, motor air intake passage and motor air-out passage in described housing.During normal operation, motor running is with the air intake motor air intake passage of outside with dust, and the filter that arranges in the motor air intake passage is held back the dust of suction, and the air after filtration is discharged from the motor air-out passage via motor.After the motor air intake passage was stopped up by dust, because motor is also ceaselessly being worked, motor air draught end formed negative pressure, easily causes motor overload and overheated.Therefore, usually safety valve is set and pressure switch is protected motor.When the negative pressure of motor air draught end reached warning value, pressure switch was opened, and made connected dust-full attention device action, and for example dust-full indicator lamp is lighted, and prompting operation person's dust completely needs cleaning; The negative pressure of motor air draught end equals or exceeds safety valve when opening air pressure, and safety valve is opened, and ambient atmosphere enters and arrive the air draught end of motor by the safety valve air intake passage, and balance pressure reduction reaches the purpose of protection motor.But, because pressure switch and safety valve work alone, exist dust-full attention device to give the alarm too early, and the safety valve problem of whether working and can't learn.
Summary of the invention
The utility model has overcome the deficiencies in the prior art, provides a kind of simple in structure, easy to use, can reflect more accurately dust-full situation, reflects more intuitively the safety valve working condition, and the more safe and reliable relief valve device that is used for dust catcher.
For achieving the above object, the technical solution adopted in the utility model is: be used for the relief valve device of dust catcher, described dust catcher comprises housing, and is located at motor, motor air intake passage and motor air-out passage in described housing; Described relief valve device comprises the safety valve of being located in described motor air intake passage, it is characterized in that: also comprise the pressure switch that is connected with described safety valve, and the dust-full attention device that is electrically connected to described pressure switch.
In preferred embodiment of the utility model, comprise that further when described safety valve was opened, described pressure switch was also opened, and make described dust-full attention device make simultaneously the caution action.
In preferred embodiment of the utility model, what further comprise described safety valve opens air pressure more than or equal to 0.5Kpa.
In preferred embodiment of the utility model, comprise that further described safety valve is provided with safety valve joint, and with described pressure switch on the pressure switch joint that arranges be tightly connected by adapter.
In preferred embodiment of the utility model, comprise that further described safety valve is spring loaded safety valve.
The utility model has solved the defective that exists in the background technology, relief valve device of the present utility model makes pressure switch be connected with safety valve, dust-full attention device moves when safety valve is opened, both improve the dust-full attention device accuracy of actuation time, and can reflect intuitively again the situation of safety valve unlatching work.Be conducive to the operator and grasp more fast, easily the safety valve state, in case the situation that safety valve is not opened occurs, can in time carry out inspection and maintenance, play the effect of better protection motor and raising security.
Description of drawings
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is that preferred embodiment of the present utility model is arranged on the structural representation in shell of the dust collector;
Fig. 2 is the schematic diagram of dust-full alarming device in preferred embodiment of the present utility model;
Fig. 3 is the enlarged diagram of safety valve in Fig. 1;
Fig. 4 is the spool of safety valve in preferred embodiment of the present utility model and the annexation schematic diagram of sealing ring;
In figure: 1, housing, 2, motor, 3, the motor air intake passage, 4, the motor air-out passage, 5, dust-full indicator lamp, 7, motor cover, 8, cavity, 9, pressure switch, 10, valve body, 11, spring, 12, spool, 13, the safety valve air intake passage, 14, air intake, 15, outlet air end, 16, sealing ring, 17, annular slot, 19, safety valve joint, 20, the pressure switch joint, 21, the air draught end, 22, air outlet, 23, take over, 24, wiring board.
The specific embodiment
In conjunction with the accompanying drawings and embodiments the utility model is described in further detail now, these accompanying drawings are the schematic diagram of simplification, basic structure of the present utility model only is described in a schematic way, so it only show the formation relevant with the utility model.
As shown in Figure 1, be used for the relief valve device of dust catcher, wherein, dust catcher comprises housing 1, and is located at motor 2, motor air intake passage 3 and motor air-out passage 4 in housing 1.One side of motor 2 is air draught end 21, and opposite side is air outlet 22.Motor air-out passage 4 one ends are facing to the air outlet 22 of motor 2, and the other end is communicated with outside air.The air draught end 21 of motor 2 is provided with motor cover 7, forms cavity 8 between motor cover 7 and motor 2.Motor air intake passage 3 one ends are communicated with outside air, and the other end is connected with cavity 8, also is provided with filter in motor air intake passage 3.
Relief valve device comprises pressure switch 9, the dust-full attention device that is electrically connected to pressure switch 9 and be located at safety valve on motor cover 7.Dust-full attention device in the present embodiment is dust-full indicator lamp 5, can certainly be the attention device of other form, for example buzzer.As shown in Fig. 2-4, described safety valve is spring loaded safety valve, is arranged in motor air intake passage 3, comprises hollow tube-shape valve body 10, and is located in valve body 10 and the outside is arranged with the cylindrical spool 12 of spring 11.12 formation safety valve air intake passages 13 of valve body 10 and spool, safety valve air intake passage 13 comprises air intake 14 and outlet air end 15.Spool 12 stretches out valve body 10 by outlet air end 15, and the end that spool 12 stretches out valve body 10 is provided with sealing ring 16.Spool 12 is provided with the annular slot 17 that matches with sealing ring 16 shapes, and sealing ring 16 is set in outside spool 12, is embedded in annular slot 17.Safety valve also comprises is located at the safety valve joint 19 that valve body 10 sides are communicated with safety valve air intake passage 13.The air intake 14 of safety valve extends in outside air, and outlet air end 15 stretches into cavity 8, facing to the air draught end 21 of motor 2.Be provided with pressure switch air intake passage and the pressure switch joint 20 of being located at pressure switch air intake passage entrance in pressure switch 9.Pressure switch 9 is electrically connected to dust-full indicator lamp 5 by wiring board 24.Dust-full indicator lamp 5, wiring board 24 and pressure switch 9 consist of dust-full alarming device.The pressure switch air intake passage is connected the connection of being connected with the pressure switch joint by safety valve joint 19 and is connected with the safety valve air intake passage, particularly, safety valve joint 19 and pressure switch joint 20 are tightly connected by taking over 23.Safety valve open air pressure more than or equal to 0.5Kpa, and the air pressure of opening of safety valve refers to that safety valve opens the air pressure in instantly safe valve air intake passage 13.
During work, motor 2 runnings suck with the air of dust the external world by motor air intake passage 3, and dust is filtered device and holds back, and have filtered the air of dust and have discharged dust catcher by the air outlet 22 of motor 2 from motor air-out passage 4 through cavity 8.Under normality, spool 12 is with air intake 14 and outlet air end 15 sealings, and arranged at safety valve is in closed condition.The dust interception acquires a certain degree in motor air intake passage 3, when resulting in blockage, still in running, form negative pressure in cavity 8 due to motor 2, spool 12 is pushed to outlet air end 15 motions, safety valve is opened, pressure switch 9 is opened simultaneously, and the circuit of communication line plate 24 is lighted dust-full indicator lamp 5, inform that the dust of collecting in operator's dust catcher is full, need cleaning and safety valve successfully to open and start working.Outside air enters safety valve air intake passage 13 and cavity 8 via the safety valve air intake 14 of opening, balance cavity 8 air pressure inside, cooling motor 2.
Above foundation desirable embodiment of the present utility model is enlightenment, and by above-mentioned description, the related personnel can in the scope that does not depart from this utility model technological thought, carry out various change and modification fully.The technical scope of this utility model is not limited to the content on specification, must determine technical scope according to the claim scope.
Claims (5)
1. be used for the relief valve device of dust catcher, described dust catcher comprises housing, and is located at motor, motor air intake passage and motor air-out passage in described housing; Described relief valve device comprises the safety valve of being located in described motor air intake passage, it is characterized in that: also comprise the pressure switch that is connected with described safety valve, and the dust-full attention device that is electrically connected to described pressure switch.
2. the relief valve device for dust catcher according to claim 1, it is characterized in that: when described safety valve was opened, described pressure switch was also opened, and made described dust-full attention device make simultaneously the caution action.
3. the relief valve device for dust catcher according to claim 2 is characterized in that: described safety valve open air pressure more than or equal to 0.5Kpa.
4. the relief valve device for dust catcher according to claim 3, it is characterized in that: described safety valve is provided with safety valve joint, and with described pressure switch on the pressure switch joint that arranges be tightly connected by adapter.
5. the relief valve device for dust catcher according to claim 4, it is characterized in that: described safety valve is spring loaded safety valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220709299 CN203000802U (en) | 2012-12-20 | 2012-12-20 | Safety valve device used for dust remover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220709299 CN203000802U (en) | 2012-12-20 | 2012-12-20 | Safety valve device used for dust remover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203000802U true CN203000802U (en) | 2013-06-19 |
Family
ID=48592446
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220709299 Expired - Lifetime CN203000802U (en) | 2012-12-20 | 2012-12-20 | Safety valve device used for dust remover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203000802U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106175585A (en) * | 2016-09-19 | 2016-12-07 | 珠海格力电器股份有限公司 | A kind of relief valve and use its vacuum cleaner |
-
2012
- 2012-12-20 CN CN 201220709299 patent/CN203000802U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106175585A (en) * | 2016-09-19 | 2016-12-07 | 珠海格力电器股份有限公司 | A kind of relief valve and use its vacuum cleaner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210127 Address after: 215156 No. 499, FanFeng Road, Xukou Town, Wuzhong District, Suzhou City, Jiangsu Province Patentee after: Suzhou shangteng Technology Manufacturing Co.,Ltd. Address before: 215159 No.2, Liujia Road, East Industrial Park, Guangfu Town, Wuzhong District, Suzhou City, Jiangsu Province Patentee before: SUZHOU HAILY ELECTRIC Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130619 |
|
| CX01 | Expiry of patent term |