CN202124021U - Dry-scraping preventing system of car windshield wiper - Google Patents
Dry-scraping preventing system of car windshield wiper Download PDFInfo
- Publication number
- CN202124021U CN202124021U CN2011202031082U CN201120203108U CN202124021U CN 202124021 U CN202124021 U CN 202124021U CN 2011202031082 U CN2011202031082 U CN 2011202031082U CN 201120203108 U CN201120203108 U CN 201120203108U CN 202124021 U CN202124021 U CN 202124021U
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- Prior art keywords
- scraping
- windshield wiper
- water tank
- cleansing fluid
- dry
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- Expired - Lifetime
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Abstract
The utility model relates to a dry-scraping preventing system of a car windshield wiper. A one-way valve is additionally arranged in a liquid feeding pipeline of the windshield wiper, and the condition that cleaning liquid reflows a water tank due to gravity of the cleaning liquid is overcome between two times of cleaning operation, so that the cleaning liquid can flows out at the beginning of the motion of scraping, further the damage on a windscreen due to dry-scraping motion is avoided, and the service life of windshield wiper scraping pieces and the windscreen can be correspondingly prolonged. The dry-scraping preventing system of the car windshield wiper comprises a windshield wiper device which is used for cleaning the surface of a car window, the water tank which is used for storing the cleaning liquid, and the liquid feeding pipeline and a water pump which provide the cleaning liquid for the surface of the car window from the water tank. The one-way valve which is used for limiting the cleaning liquid to reversely flow to the water tank is arranged on the liquid feeding pipeline.
Description
Technical field
The utility model relates to a kind of anti-dried system of scraping of rain brush that the windows of railway vehicles cleaning is used that is applied to, and belongs to mechanical manufacturing field.
Background technology
The guideway vehicle of present domestic use like motor train unit, subway and urban light rail etc., is provided with Wiper system in the operator's compartment front portion usually.In the vehicle operating process; Can accumulate impurity such as dust, sleet are arranged on the vehicle window; Pipeline through Wiper system is carried cleansing fluid or current to the windscreen glass surface, utilizes scraping blade to swipe repeatedly cleaning at glass surface, thereby improves vehicle driver's sighting distance and visibility.
Because the feed flow pipeline of existing Wiper system is longer; Scraping blade action in advance always when at every turn starting Wiper system; Cleansing fluid or current could flow out from the feed flow pipeline subsequently; The dried of scraping blade scraped the coating that action is easy to scratch the windshield surface, thereby influences the service life of rain brush scraping blade and windshield.
In view of this special present patent application that proposes.
The utility model content
The described vehicle windscreen wipers of the utility model is prevented the dried system of scraping; Its design goal is to address the above problem with deficiency sets up check valve in rain brush feed flow pipeline; The gravity that between twice cleaning, overcomes cleansing fluid through check valve stops its reflow tank; Thereby promptly there is cleansing fluid to flow out beginning in the scraping blade action, avoids the dried damage that scrapes work for windshield of scraping blade, the service life of correspondingly improving rain brush scraping blade and windshield.
For realizing above-mentioned design goal, the anti-dried system of scraping of described vehicle windscreen wipers mainly includes:
Be used to clean the Wiper system on vehicle window surface,
Store the water tank of cleansing fluid,
And feed flow pipeline, water pump that cleansing fluid is provided to the vehicle window surface from water tank.
The difference with the prior art part is, the check valve of a restriction cleansing fluid reverse direction flow recovery tank is set on the feed flow pipeline.
Based on above-mentioned basic scheme, accomplish once washing week after date at the scraping blade of Wiper system on the windshield surface of vehicle window, check valve will stop cleansing fluid to flow back in the water tank by its gravity again, and promptly retaining all the time in the feed flow pipeline has cleansing fluid.
When the scraping blade of Wiper system started once more, cleansing fluid can flow out from the feed flow pipeline immediately, thereby between the windshield of scraping blade and vehicle window, plays lubricated effect, prevented the dried phenomenon of scraping to occur on the surface of windshield.
For improving the control effect that overcomes cleansing fluid gravity further; Can described check valve be arranged between Wiper system and the water pump; I.e. assurance closes on the pressure control of the feed flow pipe section of scraping blade, promptly closes on the feed flow pipe section of scraping blade at least and has always retained cleansing fluid.
As above content, the advantage that the anti-dried system of scraping of the utility model vehicle windscreen wipers has is:
1, solved the dried problem of scraping of scraping blade effectively, can guarantee that the cleansing fluid supply is always arranged beginning, avoided more up hill and dale scraping the windshield scratch, improved the service life of rain brush scraping blade and windshield because of dried in the scraping blade action.
2, the check valve that is increased is less to the improvement of existing vehicle windscreen wipers control system, does not influence the manufacturing cost of single unit system, and is simple for structure, cleaning efficiency is higher.
Description of drawings
The following accompanying drawing of existing combination is done explanation further to the utility model
Fig. 1 is the anti-dried scheme drawing of scraping system of said rain brush;
As shown in Figure 1, Wiper system 1, feed flow pipeline 2, check valve 3, water pump 4, water tank 5, cleansing fluid 6.
What the arrow among Fig. 1 was represented is the flow direction of cleansing fluid 6.
The specific embodiment
Be used to clean the Wiper system 1 on vehicle window surface,
Store the water tank 5 of cleansing fluid,
From water tank 5 the feed flow pipeline 2 and water pump 4 of cleansing fluid are provided to the vehicle window surface,
On the feed flow pipeline 2, the check valve 3 of a restriction cleansing fluid reverse direction flow recovery tank 5 is set between Wiper system 1 and the water pump 4.
Accomplish the cleaning flow process on a windshield surface in the scraping blade (not shown) of Wiper system 1 after, check valve 3 stops cleansing fluid 6 to rely on its gravity and flow back in the water tank 5, and promptly retaining all the time in the feed flow pipeline 2 has cleansing fluid 6.
When the scraping blade of Wiper system 1 started once more, cleansing fluid 6 can flow out from feed flow pipeline 2 immediately, prevented the dried phenomenon of scraping to occur on the surface of windshield.
Explain again below about overcoming the gravity problem that cleansing fluid 6 flow back into water tank 5.
For realizing that above-described in feed flow pipeline 2, the retention all the time has cleansing fluid 6, promptly utilize check valve 3 by effect, need to consider between water tank 5 and check valve 3 inlets that retention has cleansing fluid 6 in the pipeline.
This moment, the barometric pressure application force should could guarantee that cleansing fluid 6 can not rely on self gravitation reflow tank 5 again greater than the gravity of cleansing fluid 6, must satisfy Q＞W so, and wherein Q is an atmospheric action power, and W is a cleansing fluid gravity.
Derive successively, P * S＞M * G is promptly arranged, wherein P is a bar pressure, and P is about 101325Pa; S is the sectional area of feed flow pipeline 2; M is the quality of cleansing fluid 6 in the pipeline between water tank 5 and check valve 3 water inlets; G is an acceleration due to gravity, and G is 9.8m/s
2
And then P * S＞ρ * S * H * G, wherein ρ is the density of cleansing fluid, is about 0.9 * 10
3Kg/m
3H is the vertical height between water tank 5 and check valve 3 water inlets.
Thereby P＞ρ * H * G,
H＜P/(ρ×G)，
Final H＜11.488m.
Because the whole height of existing guideway vehicle can't surpass 4.5 meters, so adopt when the said vehicle windscreen wipers of the utility model is anti-dried scrapes system, retaining all the time in the whole feed flow pipeline 2 has cleansing fluid 6.
Claims (2)
1. a vehicle windscreen wipers is prevented the dried system of scraping; The feed flow pipeline (2) and the water pump (4) that include the Wiper system (1) that is used to clean the vehicle window surface, store the water tank (5) of cleansing fluid (6) and cleansing fluid (6) is provided to the vehicle window surface from water tank (5); It is characterized in that: on feed flow pipeline (2), the check valve (3) of restriction cleansing fluid (a 6) reverse direction flow recovery tank (5) is set.
2. vehicle windscreen wipers according to claim 1 is prevented the dried system of scraping, and it is characterized in that: described check valve (3) is arranged between Wiper system (1) and the water pump (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202031082U CN202124021U (en) | 2011-06-16 | 2011-06-16 | Dry-scraping preventing system of car windshield wiper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202031082U CN202124021U (en) | 2011-06-16 | 2011-06-16 | Dry-scraping preventing system of car windshield wiper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202124021U true CN202124021U (en) | 2012-01-25 |
Family
ID=45487090
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202031082U Expired - Lifetime CN202124021U (en) | 2011-06-16 | 2011-06-16 | Dry-scraping preventing system of car windshield wiper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202124021U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107792015A (en) * | 2017-10-19 | 2018-03-13 | 浙江跃进机械有限公司 | A kind of vehicle windshield wiper |
| CN109204237A (en) * | 2017-06-29 | 2019-01-15 | 法雷奥系统公司 | For wiping and cleaning the controlled system of vehicle window and the method for equipment vehicle |
-
2011
- 2011-06-16 CN CN2011202031082U patent/CN202124021U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109204237A (en) * | 2017-06-29 | 2019-01-15 | 法雷奥系统公司 | For wiping and cleaning the controlled system of vehicle window and the method for equipment vehicle |
| CN109204237B (en) * | 2017-06-29 | 2022-06-10 | 法雷奥系统公司 | Controlled system for wiping and washing windows of a vehicle and method for equipping a vehicle |
| CN107792015A (en) * | 2017-10-19 | 2018-03-13 | 浙江跃进机械有限公司 | A kind of vehicle windshield wiper |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120125 |
|
| CX01 | Expiry of patent term |