CN203088999U - Safety valve device for dust collector - Google Patents
Safety valve device for dust collector Download PDFInfo
- Publication number
- CN203088999U CN203088999U CN 201320069812 CN201320069812U CN203088999U CN 203088999 U CN203088999 U CN 203088999U CN 201320069812 CN201320069812 CN 201320069812 CN 201320069812 U CN201320069812 U CN 201320069812U CN 203088999 U CN203088999 U CN 203088999U
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- safety valve
- motor
- pressure switch
- dust catcher
- dust
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Abstract
Disclosed is a safety valve device for a dust collector. The dust collector comprises a shell body, a motor, a motor air inlet channel and a motor air outlet channel, wherein the motor, the motor air inlet channel and the motor air outlet channel are arranged inside the shell body. The safety valve device comprises a safety valve with a valve core, one end of the valve core is arranged at an atmospheric environment, and the other end of the valve core is arranged at an atmospheric pressure environment at a motor air draft end. The safety valve device is characterized by further comprising a pressure switch which is connected with the safety valve and a dust filling warning device which is electrically connected with the pressure switch. According to the safety valve device, the safety valve is used as a triggering component of the pressure switch, so that the dust filling warning device can act at the same time when the safety valve is opened, the accuracy of the action time of the dust filling warning device is improved, and the opening condition of the safety valve can be reflected visually. An operator can better control the state of the safety valve more rapidly and conveniently, once the situation that the safety valve is not opened happens, inspection and maintenance can be timely conducted, and the functions of protecting the motor and improving security can be better achieved.
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, and wherein common have a vacuum cleaner.Vacuum cleaner generally includes housing, is located at motor, motor air intake passage and motor air-out passage in the described housing.During operate as normal, motor running sucks the motor air intake passage with the air that the outside has dust, and the filter that is provided with in the motor air intake passage is held back the dust of suction, and the air after the filtration is discharged from motor air-out passage via motor.After the motor air intake passage was stopped up by dust, because motor is also in the work that does not stop, motor air draught end formed negative pressure, causes motor overload and overheated easily.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 the dust-full attention device that links to each other move, 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 dust-full situation more accurately, reflects the safety valve working condition more intuitively, 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 the described housing; Described relief valve device comprises the safety valve with spool, described spool one end is located in the atmospheric environment, the other end is located in the air pressure environment of described motor air draught end, it is characterized in that: also comprise the pressure switch that links to each other with described safety valve, and the dust-full attention device that is electrically connected with described pressure switch; Trigger the pressure switch action when described safety valve is opened, and then described dust-full attention device is reported to the police.
Preferably, described pressure switch is the Pneumatic pressure switch, and the air pressure in the described safety valve communicates with the air pressure of described pressure switch inlet end.
Preferably, described safety valve opens air pressure more than or equal to 0.5Kpa.
Preferably, described safety valve is provided with the safety valve joint, and with described pressure switch on the pressure switch joint that is provided be tightly connected by adapter.
Preferably, described dust catcher also comprises the block piece fixing with respect to described shell position; Described safety valve comprises valve body, be located at the described spool in the valve body and be set in spring on the spool, described spool upper end is provided with boss radially, one end of described spring and described boss butt, the other end is connected on the described block piece, and the lower end of described spool is passed described block piece and is connected with seal; Described block piece is the motor cover of ccontaining described motor or is located at catch on the described valve body.
Preferably, described safety valve also comprises the regulating part that lower end and described spool flexibly connect, and described boss is arranged on the described regulating part.
Preferably, described safety valve also comprises the locating part that is sheathed on the described regulating part, and described locating part comprises the cylinder that is provided with through hole and along at least one pole of cylindrical circumferential setting.
Preferably, the inwall of described valve body is provided with at least one guide groove vertically, and the free end of described pole is inserted in the described guide groove.
Preferably, described cylindrical a plurality of described poles that circumferentially evenly are provided with.
The utility model has solved the defective that exists in the background technology, has following beneficial effect:
1. safety valve makes dust-full attention device move when safety valve is opened as the triggering part of pressure switch, has both improved the dust-full attention device accuracy of actuation time, can reflect the situation of safety valve unlatching work again intuitively.Help the operator and grasp the safety valve state more fast, easily,, can in time carry out inspection and maintenance, play the effect of better protection motor and raising security in case the situation that safety valve is not opened occurs.
2. the negative pressure of inside directly triggers pressure switch and opens when opening with safety valve, need not mechanical transmission component, has fast, advantage accurately and efficiently.
3. use the adjustable safety valve of spring pre compressed magnitude, the low precision that parts such as motor, spring can be accumulated is eliminated, thereby increases substantially the operation precision of safety valve, but and safety valve free adjustment in certain limit, need not to tear open machine, convenient, flexible.
4. use the adjustable safety valve, the operation precision of safety valve itself is improved,, therefore also further improved the operation precision of dust-full attention device from another point of view simultaneously because safety valve is the triggering part of pressure switch.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is that the relief valve device of the utility model embodiment 1 is arranged on the structural representation in the shell of the dust collector;
Fig. 2 is the schematic diagram of dust-full alarming device among the embodiment 1;
Fig. 3 is the enlarged diagram of safety valve among Fig. 1;
Fig. 4 is the elevational cross-sectional view of pressure switch among the embodiment 1;
Fig. 5 is the side view cutaway drawing of pressure switch among the embodiment 1;
Fig. 6 is that embodiment 2 safety valves are arranged on the schematic diagram on the motor cover;
Fig. 7 is that embodiment 3 safety valves are arranged on the schematic diagram on the motor cover;
Fig. 8 is that embodiment 4 safety valves are arranged on the structural representation in the shell of the dust collector;
Fig. 9 is the enlarged diagram of Fig. 8 safety valve;
Among the figure: 2, safety valve, 4, pressure switch, 6, housing, 8, motor, 12, the motor air intake passage, 14, motor air-out passage, 16, the air draught end, 18, air outlet, 22, motor cover, 24, cavity, 26, valve body, 28, spool, 32, spring, 34, boss, 36, catch, 38, sealing ring, 42, retaining wall, 44, the safety valve joint, 46, dust-full indicator lamp, 48, pedestal, 49, boss, 52, sealing cap, 54, set screw, 56, spring, 58, contact pin, 62, plastic cap, 64, conducting ring, 66, projection, 68, projection, 72, end cap, 74, the pressure switch joint, 76, the pressure switch air intake passage, 78, cavity, 82, wiring board, 84, take over 86, guide groove, 88, cylinder, 89, screw, 92, pole, 94, circular discs.
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.
Embodiment 1
Shown in Fig. 1-5, be used for the relief valve device of dust catcher, comprise safety valve 2, the pressure switch 4 that links to each other with safety valve 2, and the dust-full attention device that is electrically connected with pressure switch 4.
Particularly, as shown in Figure 1, described dust catcher comprises housing 6, and is located at motor 8, motor air intake passage 12 and motor air-out passage 14 in the housing 6.One side of motor 8 is an air draught end 16, and opposite side is an air outlet 18.Motor air-out passage 14 1 ends are facing to the air outlet 18 of motor 8, and the other end is communicated with outside air.The air draught end 16 of motor 8 is provided with motor cover 22, forms cavity 24 between motor cover 22 and the motor 8.Motor air intake passage 12 1 ends are communicated with outside air, and the other end is connected with cavity 24, also is provided with filter in the motor air intake passage 12.
As shown in Figure 3, described safety valve 2 is a spring loaded safety valve, comprises hollow tube-shape valve body 26, is located at the cylindrical spool 28 in the valve body 26 and is set in spring 32 on the spool 28.Valve body 26 is positioned at outside the motor cover 22, and spool 28 upper ends are provided with boss 34 radially, and the block piece with respect to housing 6 fixed-site is passed in the lower end of spool 28.Preferably, described block piece is the catch 36 that is arranged on the valve body 26, and this catch 36 is located at the lower end of valve body 26 inner springs 32, offers through hole on the catch 36, makes spool 28 lower ends pass catch 36 and is connected with seal, and preferred, seal is a sealing ring 38; Spring corrects for 32 times and is connected on the catch 36, and the size of catch 36 makes sealing ring 38 can't upwards skid off catch 36 through holes.The safety valve 2 of present embodiment is owing to itself have catch 36, can carry out spacing to spring 32 and spool 28, only need fixed valve body 26 when therefore installing, need not to consider contained spring 32 and spool 28 be positioned at safety valve 2 outsides, independently other block piece cooperates, have structure more stable, install more conveniently, the selection of installation site is advantage more freely.In addition, also be provided with on the catch 36 circumferentially continuously, along valve body 26 axial upwardly extending retaining walls 42, retaining wall 42 and valve body 26 together limit the position of spring 32 lower ends.
The valve body 26 of safety valve 2 and 28 formation safety valves of spool air intake passage.The end that safety valve 2 spools 28 are provided with sealing ring 38 stretches into cavity 24, promptly is arranged in the air pressure environment of motor 8 air draught ends 16, and the other end is positioned at outside the motor cover 22, is in the atmospheric environment.Safety valve 2 also comprises is located at the safety valve joint 44 that valve body 26 sides are communicated with the safety valve air intake passage, and safety valve joint 44 is located at the end of safety valve 2 near atmospheric environment.
Dust-full attention device in the present embodiment is dust-full indicator lamp 46, can certainly be the attention device of other form, for example buzzer.
Shown in Fig. 4-5, pressure switch 4 is the Pneumatic pressure switch, comprises the hollow tube-shape pedestal 48 of upper end open, is located at the sealing cap 52 of pedestal 48 upper ends, and the spring 56 and the contact pin 58 that are placed in pedestal 48 internal cavities.The outer wall of pedestal 48 is provided with boss 49 radially, and the lower end of sealing cap 52 is against on the boss 49, the upper end open of closed base 48.Be vertically installed with set screw 54 in the pedestal 48, the upper end of set screw 54 is provided with plastic cap 62, and lower end and pedestal 48 flexibly connect, and spring 56 is set on this set screw 54.Also be provided with conducting ring 64 between sealing cap 52 and the spring 56, the shape of conducting ring 64 matches with sealing cap 52 shapes, and the upper end of spring 56 is supporting conducting ring 64 makes conducting ring 64 contact with sealing cap 52, and the lower end of spring 56 is connected on the plastic cap 62.Sealing cap 52 middle parts are provided with a projection 66, and the middle part of conducting ring 64 is provided with a projection 68, and projection 68 is contained in the projection 66.Contact pin 58 is fixed on the pedestal 48, and the upper end is facing to conducting ring 64.Pressure switch 4 also comprises the tubular end cap 72 of being located at pedestal 48 upper ends and is located at the pressure switch joint 74 of pedestal 48 sidewalls.Be provided with pressure switch air intake passage 76 in the pedestal 48, an end of pressure switch air intake passage 76 extends to pressure switch joint 74 porch, and the other end is connected with pedestal 48 cavitys 78.End cap 72 is set in outside the sealing cap 52, and sidewall extends downwards, is fixed on the boss 49 of pedestal 48, and through hole is offered in end cap 72 upper ends, and ccontaining protruding 66.Under the off working state, conducting ring 64 is being supported by spring 56 and is being attached on the sealing cap 52, leaves the space with contact pin 58 upper ends; In case and have negative pressure, sealing cap 52 to be out of shape in the cavity 78 of pressure switch 4 downwards, promote conducting ring 64 to contact with contact pin 58, make the circuit connection, pressure switch 4 is opened.Though pressure switch 4 adopts the mechanical pressure switches of said structure in the present embodiment, the mechanical pressure switches of other versions or electron pressure switch also can be realized the utility model.
During work, motor 8 runnings, the air that the external world is had dust sucks by motor air intake passage 12, and dust is filtered device and holds back, and has filtered the air of dust and has discharged dust catcher by the air outlet 18 of motor 8 from motor air-out passage 14 through cavity 24.Under the normality, the air pressure environment of safety valve air intake passage and cavity 24 is completely cut off by the combination of spool 28, sealing ring 38 and catch 36, and air pressure equals atmospheric pressure in the safety valve air intake passage, and safety valve 2 is in closed condition.The dust interception acquires a certain degree in motor air intake passage 12, when resulting in blockage, because motor 8 is still in running, form negative pressure in the cavity 24, when negative pressure reaches certain value, spool 28 is pushed to 16 motions of motor air draught end, sealing ring 38 breaks away from catch 36, and safety valve 2 is opened, and forms negative pressure in the safety valve air intake passage, and make in pressure switch 4 cavitys 78 that are connected and also form identical negative pressure, then pressure switch 4 is opened, and the circuit of communication line plate 82 is lighted dust-full indicator lamp 46, inform that the dust of collecting in operator's dust catcher is full, need cleaning and safety valve 2 successfully to open and start working.Simultaneously, entering outside air in the cavity 24, to play balance cavity 24 inside be motor air draught end 16 air pressure, the effect of cooling motor 8.
As shown in Figure 6, the relief valve device that is used for dust catcher, be with the difference of embodiment 1, described block piece is a motor cover 22, offer installing hole on the motor cover 22, spool 28 lower ends are passed motor cover 22 and are connected with sealing ring 38, and the size of sealing ring 38 makes sealing ring 38 to skid off in motor cover 22.One end of spring 32 and boss 34 direct butts, the other end directly is connected on the motor cover 22.Safety valve 2 in the present embodiment has saved baffle structure, have simple in structure, non-damageable advantage.
Embodiment 3
As shown in Figure 7, be used for the relief valve device of dust catcher, be with the difference of embodiment 2, safety valve 2 also comprises the column regulating part that lower end and spool 28 flexibly connect and is sheathed on locating part on the regulating part.The inwall of valve body 26 is provided with at least one guide groove 86 vertically, and the inwall of preferred valve body 26 is along circumferentially evenly being provided with four guide grooves 86.Locating part comprises the cylinder 88 that is provided with through hole and along at least one pole 92 of the circumferential setting of cylinder 88.Preferably, the quantity of pole 92 is four, and is provided with along the circumferentially even of cylinder 88, is beneficial to the maintenance balance, prevents radially wobbling of valve body 26 inner spools 28, spring 32 and regulating part simultaneously; The free end of four poles 92 is inserted respectively in four guide grooves 86, and pole 92 can move up and down along guide groove 86, can avoid the rotation of pole 92.Boss 34 is arranged on regulating part upper end, with the regulating part one, the upper end of spring 32 directly with cylinder 88 butts of locating part, and by cylinder 88 indirect and boss 34 butts, the lower end of spring 32 directly is connected on the motor cover 22.The preferred regulating part of present embodiment is a screw 89, the head of screw 89 is boss 34, boss 34 diameters are greater than the diameter of through hole, the lower end of screw 89 is passed locating part and is flexibly connected with spool 28, particularly, cylinder 88 is being supported by spring 32 and is making the upper end of cylinder 88 contact with the head of screw 89, and the lower end of screw 89 is passed the through hole of cylinder 88 and is threaded with spool 28.
When using parts such as different motors 8, spring 32 to cause part accumulation precision low, can be in certain vacuum degree scope the pre compressed magnitude of regulating spring 32, make the operation precision height of relief valve device.Particularly, when the vacuum between motor cover 22 and the motor 8 increases,, spring 32 further is compressed, increases the pre compressed magnitude of spring 32 screw 89 downward precession spool 28 certain distances; When the vacuum between motor cover 22 and the motor 8 diminishes, screw 89 is upwards revolved certain distance, make spring 32 extend upward certain distance, reduce the pre compressed magnitude of spring 32.So, safety valve 2 operation precisions own are improved,, therefore also further improved the operation precision of dust-full attention device from another point of view simultaneously because safety valve 2 is the triggering part of pressure switch 4.
Shown in Fig. 8-9, be used for the relief valve device of dust catcher, be that with embodiment 3 difference parts safety valve 2 also comprises the catch 36 that is arranged on the valve body 26, this catch 36 is as described block piece.Particularly, catch 36 is located at the lower end of valve body 26 inner springs 32, offers through hole on the catch 36, makes spool 28 lower ends pass catch 36 and is connected with seal, and seal is a circular discs 94; Spring corrects for 32 times and is connected on the catch 36, and the size of catch 36 makes seal can't upwards skid off catch 36 through holes.
The inwall of valve body 26 is inserted respectively in two guide grooves 86 along the free end that circumferentially evenly is provided with 86, two symmetrical poles 92 of two guide grooves; Cylinder 88 is set in outside the spool 28, the inside bending in the upper end of cylinder 88, form kink 96 perpendicular to axial direction, kink 96 is located between the boss 34 of spool 28 tops and regulating part, and four poles 92 of locating part are being supported by spring 32 upper ends and making kink 96 upper ends of cylinder 88 contact with the boss 34 of regulating part.In the present embodiment, the diameter of boss 34 and cylinder 88 through-hole diameter sizes do not have positive connection.
Above foundation desirable embodiment of the present utility model is enlightenment, and by above-mentioned description, the related personnel can carry out various change and modification fully in the scope that does not depart from this utility model technological thought.The technical scope of this utility model is not limited to the content on the specification, must determine technical scope according to the claim scope.
Claims (9)
1. the relief valve device that is used for dust catcher, described dust catcher comprises housing, and is located at motor, motor air intake passage and motor air-out passage in the described housing; Described relief valve device comprises the safety valve with spool, described spool one end is located in the atmospheric environment, the other end is located in the air pressure environment of described motor air draught end, it is characterized in that: also comprise the pressure switch that links to each other with described safety valve, and the dust-full attention device that is electrically connected with described pressure switch; Trigger the pressure switch action when described safety valve is opened, and then described dust-full attention device is reported to the police.
2. the relief valve device that is used for dust catcher according to claim 1 is characterized in that: described pressure switch is the Pneumatic pressure switch, and the air pressure in the described safety valve communicates with the air pressure of described pressure switch inlet end.
3. the relief valve device that is used 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 that is used for dust catcher according to claim 3 is characterized in that: described safety valve is provided with the safety valve joint, and with described pressure switch on the pressure switch joint that is provided be tightly connected by adapter.
5. according to each described relief valve device that is used for dust catcher of claim 1-4, it is characterized in that: described dust catcher also comprises the block piece fixing with respect to described shell position; Described safety valve comprises valve body, be located at the described spool in the valve body and be set in spring on the spool, described spool upper end is provided with boss radially, one end of described spring and described boss butt, the other end is connected on the described block piece, and the lower end of described spool is passed described block piece and is connected with seal; Described block piece is the motor cover of ccontaining described motor or is located at catch on the described valve body.
6. the relief valve device that is used for dust catcher according to claim 5 is characterized in that: described safety valve also comprises the regulating part that lower end and described spool flexibly connect, and described boss is arranged on the described regulating part.
7. the relief valve device that is used for dust catcher according to claim 6, it is characterized in that: described safety valve also comprises the locating part that is sheathed on the described regulating part, and described locating part comprises the cylinder that is provided with through hole and along at least one pole of cylindrical circumferential setting.
8. the relief valve device that is used for dust catcher according to claim 7 is characterized in that: the inwall of described valve body is provided with at least one guide groove vertically, and the free end of described pole is inserted in the described guide groove.
9. according to claim 7 or the 8 described relief valve devices that are used for dust catcher, it is characterized in that: described cylindrical a plurality of described poles that circumferentially evenly are provided with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320069812 CN203088999U (en) | 2013-02-07 | 2013-02-07 | Safety valve device for dust collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320069812 CN203088999U (en) | 2013-02-07 | 2013-02-07 | Safety valve device for dust collector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203088999U true CN203088999U (en) | 2013-07-31 |
Family
ID=48840454
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320069812 Expired - Lifetime CN203088999U (en) | 2013-02-07 | 2013-02-07 | Safety valve device for dust collector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203088999U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106235974A (en) * | 2016-08-30 | 2016-12-21 | 北京小米移动软件有限公司 | The dust monitoring method of autonomous cleaning devices and autonomous cleaning devices |
| CN113729548A (en) * | 2020-05-29 | 2021-12-03 | 优联沃森(苏州)智能技术有限公司 | Prevent domestic clean dust catcher of ventilation pipe jam |
-
2013
- 2013-02-07 CN CN 201320069812 patent/CN203088999U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106235974A (en) * | 2016-08-30 | 2016-12-21 | 北京小米移动软件有限公司 | The dust monitoring method of autonomous cleaning devices and autonomous cleaning devices |
| CN106235974B (en) * | 2016-08-30 | 2019-08-06 | 北京小米移动软件有限公司 | Autonomous cleaning apparatus and dust monitoring method of autonomous cleaning apparatus |
| CN113729548A (en) * | 2020-05-29 | 2021-12-03 | 优联沃森(苏州)智能技术有限公司 | Prevent domestic clean dust catcher of ventilation pipe jam |
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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 | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210201 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: 215000 No.9 Shiyang Road, Hushuguan District, high tech Zone, Suzhou City, Jiangsu Province Patentee before: Tang Longfu |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130731 |