CN203063906U - Cleaning pump for car air windows - Google Patents
Cleaning pump for car air windows Download PDFInfo
- Publication number
- CN203063906U CN203063906U CN 201220712287 CN201220712287U CN203063906U CN 203063906 U CN203063906 U CN 203063906U CN 201220712287 CN201220712287 CN 201220712287 CN 201220712287 U CN201220712287 U CN 201220712287U CN 203063906 U CN203063906 U CN 203063906U
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- China
- Prior art keywords
- motor
- pump
- seal ring
- impeller cavity
- pump chamber
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- Expired - Fee Related
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Abstract
The utility model discloses a cleaning pump for car air windows. The cleaning pump for the car air windows comprises a pump shell and a motor. A pump chamber is arranged inside the pump shell. The motor is arranged inside the pump chamber. An impeller cavity is formed in the head of the pump shell. An impeller which is fixed on an output shaft of the motor is arranged inside the impeller cavity. The side face of the impeller is in through connection with a water inlet and a water outlet at the same time. A three-order counter bored hole which is in through connection with the impeller cavity and the pump chamber is formed between the impeller cavity and the pump chamber. The three-order counter bored hole comprises a motor locating hole, a seal ting locating hole and a motor shaft hole in sequence. A seal ring is arranged inside the seal ring locating hole. The seal ring with the structure is tightly attached to the end and the hole wall of the seal ring locating hole, and excursion does not happen. Therefore, the cleaning pump for the car air windows has the advantages of being good in sealing effect, capable of effectively preventing water in the impeller cavity from entering the pump chamber and thus prolonging the service life of the motor.
Description
Technical field
The utility model relates to a kind of water pump, relates in particular to a kind of automobile air window washer pump.
Background technology
Existing automobile air window washer pump generally comprises pump case, be provided with pump chamber in the pump case, be provided with motor in the pump chamber, one end opening of pump case, motor is put into pump case from opening part, and pass through end cap seal, the other end of pump case is provided with impeller cavity, be provided with through hole between impeller cavity and the pump chamber, motor output shaft passes through hole and stretches into impeller cavity and be connected with impeller, and the outside of impeller cavity is connected with water inlet and water outlet, enters motor internal for anti-sealing enters in the pump chamber, the outside of motor output shaft is with seal ring in the through hole, but in the present structure, seal ring lacks axial location in through hole, along with the boss of motor head produces an axial compression effect to seal ring, seal ring can produce axial offset like this, can have the gap after the skew and between the hole wall of through hole, so water can infiltrate in the pump chamber from the gap, thereby enter motor internal, cause the motor short circuit and damage motor, influence the service life of automobile air window washer pump.
Chinese patent Granted publication number: CN202152761U, February 29 2012 Granted publication day, a kind of automobile air window washer pump is disclosed, comprise the motor bin, casing, blade, the pump cover that hold motor, vanes fixed forms the liquid storehouse between blade and casing and pump cover on motor shaft, ventilative seam is set between pump cover and casing, offer in the casing by the passage between the extremely ventilative seam of motor bin, through hole is set on the pump cover, passage, through hole and ventilative seam communicate.The advantage of this kind structure is: owing to offer in the casing by motor bin to the passage between ventilative seam, the ventilative seam of whole circle is left in the outer of pump cover and pump case, establish through hole on the pump cover, make the pump internal heat dissipating more smooth and easy effectively and prevent that outside water from entering, guarantee the complete smooth and easy discharge of hot G﹠W.But still just seal by a seal ring between the cavity at the motor bin of the automobile air window washer pump of this kind structure (also being pump chamber) and blade place, seal ring lacks the actv. location, the long-term use can produce displacement, thereby cause sealing effectiveness poor, extraneous water can enter in the motor bin from the gap, thereby damages motor.
The utility model content
The utility model is in order to overcome the hermetically-sealed construction poor sealing performance between the pump chamber and impeller cavity in the automobile air window washer pump of the prior art, thereby water can infiltrate the deficiency of damaging motor in the pump chamber from the gap, provide a kind of and can prevent that the water in the impeller cavity from entering pump chamber by actv., thereby prolonged the motor automobile air window washer pump in service life.
To achieve these goals, the utility model adopts following technical scheme:
A kind of automobile air window washer pump, comprise pump case and motor, be provided with pump chamber in the pump case, motor is arranged in the pump chamber, the head of pump case is provided with impeller cavity, be provided with the impeller that is fixed on the motor output shaft in the impeller cavity, the side of impeller cavity connects with water inlet, water outlet simultaneously, be provided with the three rank counterbores that connect impeller cavity and pump chamber between described impeller cavity and the pump chamber, described three rank counterbores comprise motor knock hole, seal ring knock hole and motor axis hole successively, are provided with seal ring in the described seal ring knock hole.The boss of the head of motor snaps in the motor knock hole, seal ring snaps in the seal ring knock hole, the step place of the end of seal ring and three rank counterbores holds out against, the hole wall of side and seal ring knock hole is adjacent to, the output shaft of motor passes in the Kong Bingcong motor axis hole at seal ring center and passes, the traversing through end of motor output shaft stretches in the impeller cavity captives joint with impeller, impeller cavity is communicated with water inlet and water outlet, motor rotates, impeller is rotated, thereby realize water inlet and drain function, since seal ring axially and the side have spacingly, can not be subjected to displacement, so sealing property is very good, can prevent that the water in the impeller cavity from entering in the pump chamber by actv., thereby prolong the service life of motor.
As preferably, described seal ring and seal ring knock hole interference fit, the step place of described seal ring knock hole and motor knock hole is provided with chamfering.Seal ring and seal ring knock hole interference fit; the outer ring of seal ring and end all seal like this; chamfering plays a directional tagging when being convenient to pack into seal ring; be convenient to the installation of seal ring; this kind structure guarantees that the water in the impeller cavity can't enter in the pump chamber from seal ring; thereby the motor in the pump chamber is played a protection, prolong motor service life.
As preferably, the pump chamber in the described pump case and the perforation of the distal end faces of pump case, the end of described pump case is provided with end cover, is provided with seal ring between described end cover and the described pump case distal end faces.Motor stretches in the pump chamber from the opening part of the end of pump case, and the boss of motor head snaps in the motor knock hole and locatees, and the pump case end seals by end cover, and the water outside seal ring can prevent enters the pump chamber from the junction of end cover and pump case.
As preferably, be threaded between described end cover and the pump case.Be threaded between end cover and the pump case and be convenient to the dismounting and change motor.
Therefore, the utlity model has good sealing effect, can prevent that the water in the impeller cavity from entering pump chamber by actv., thereby prolong the motor beneficial effect in service life.
Description of drawings
Fig. 1 is a kind of structural representation of the present utility model.
Fig. 2 is the pump shell structure scheme drawing in the utility model.
Among the figure: pump case 1 pump chamber 2 motors 3 impeller cavities 4 impellers 5 motor knock holees 6 seal ring knock holees 7 motor axis holes 8 seal rings 9 end covers 10 seal rings 11
The specific embodiment
Below in conjunction with the drawings and specific embodiments the utility model is further described:
A kind of automobile air window washer pump as shown in Figure 1, comprise pump case 1 and motor 3,1 is provided with pump chamber 2 in the pump case, motor 3 is arranged in the pump chamber 2, the head of pump case is provided with impeller cavity 4, be provided with the impeller 5 that is fixed on the motor output shaft in the impeller cavity 4, side while and the water inlet of impeller cavity 4, water outlet connects, as shown in Figure 2, be provided with the three rank counterbores that connect impeller cavity and pump chamber between impeller cavity 4 and the pump chamber 2, three rank counterbores are followed successively by motor knock hole 6 from top to bottom, seal ring knock hole 7 and motor axis hole 8, be provided with seal ring 9 in the seal ring knock hole 7, the center of seal ring is provided with through hole, seal ring 9 and seal ring knock hole 7 interference fit, seal ring knock hole 7 is provided with chamfering with the step place of motor knock hole 6, chamfering is convenient to the installation of seal ring, motor is packed in the pump case, the boss of motor head stretches in the motor knock hole 6 and positions, the motor output shaft end passes and stretches into impeller cavity behind the through hole at seal ring center and impeller is fixed, the step place, lower end of the lower surface of seal ring and seal ring knock hole fits tightly sealing like this, the hole wall interference fit seal of seal ring lateral surface and seal ring knock hole, the upper surface of seal ring is compressed the location by the boss of motor head, therefore seal ring can't be subjected to displacement, remain the sealing that fits tightly with the seal ring knock hole, actv. prevents that the water in the impeller cavity from entering in the pump chamber, thereby the protection motor, the service life of prolongation motor; Pump chamber 2 in the pump case 1 connects with the distal end faces of pump case; the end of pump case 1 is provided with end cover 10; be threaded between end cover 10 and the pump case 1; be provided with seal ring 11 between end cover 10 and pump case 1 distal end faces; motor is in the terminal open-ended pump case of packing into of pump case; the terminal end of pump case is by the sealing of seal ring and end cover, thereby anti-sealing enters in the pump chamber from the terminal end of pump case, thereby the protection motor prolongs motor service life.Therefore, the utlity model has good sealing effect, can prevent that the water in the impeller cavity from entering pump chamber by actv., thereby prolong the motor beneficial effect in service life.
Claims (4)
1. automobile air window washer pump, comprise pump case (1) and motor (3), (1) is provided with pump chamber (2) in the pump case, motor (3) is arranged in the pump chamber (2), the head of pump case is provided with impeller cavity (4), be provided with the impeller (5) that is fixed on the motor output shaft in the described impeller cavity (4), side while and the water inlet of impeller cavity (4), water outlet connects, it is characterized in that, be provided with the three rank counterbores that connect impeller cavity and pump chamber between described impeller cavity (4) and the pump chamber (2), described three rank counterbores comprise motor knock hole (6) successively, seal ring knock hole (7) and motor axis hole (8) are provided with seal ring (9) in the described seal ring knock hole (7).
2. a kind of automobile air window washer pump according to claim 1 is characterized in that, described seal ring (9) and seal ring knock hole (7) interference fit, and described seal ring knock hole (7) is provided with chamfering with the step place of motor knock hole (6).
3. a kind of automobile air window washer pump according to claim 1 and 2, it is characterized in that, pump chamber (2) in the described pump case (1) connects with the distal end faces of pump case, the end of described pump case (1) is provided with end cover (10), is provided with seal ring (11) between described end cover (10) and described pump case (1) distal end faces.
4. a kind of automobile air window washer pump according to claim 3 is characterized in that, is threaded between described end cover (10) and the pump case (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220712287 CN203063906U (en) | 2012-12-20 | 2012-12-20 | Cleaning pump for car air windows |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220712287 CN203063906U (en) | 2012-12-20 | 2012-12-20 | Cleaning pump for car air windows |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203063906U true CN203063906U (en) | 2013-07-17 |
Family
ID=48762724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220712287 Expired - Fee Related CN203063906U (en) | 2012-12-20 | 2012-12-20 | Cleaning pump for car air windows |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203063906U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109644974A (en) * | 2019-02-21 | 2019-04-19 | 浙江云翠茶业发展有限公司 | A kind of tea place pesticide spraying device |
-
2012
- 2012-12-20 CN CN 201220712287 patent/CN203063906U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109644974A (en) * | 2019-02-21 | 2019-04-19 | 浙江云翠茶业发展有限公司 | A kind of tea place pesticide spraying device |
| CN109644974B (en) * | 2019-02-21 | 2021-07-23 | 浙江云翠茶业发展有限公司 | Tea garden pesticide sprinkler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130717 Termination date: 20131220 |