Windscreen wiper strip capable of being turned over in two directions

Abstract

The invention discloses a bidirectional overturning windscreen wiper strip which comprises a housing assembly, a flow guide assembly and a windscreen wiper assembly. The housing assembly is arranged on the flow guide assembly; the flow guide assembly comprises a flow guide shell and an adapter block, the height of the flow guide shell is gradually increased from the two sides of the flow guide shell to the center position of the flow guide shell, a first water channel is formed in the flow guide shell, and the first water channel communicates with the housing assembly; the adapter block comprises an insertion pipe and a flow guide pipe, the insertion pipe communicates with the housing assembly, and the flow guide pipe is inserted into the first water channel; the windscreen wiper assembly is arranged below the flow guide shell and communicates with the flow guide pipe. The height of the flow guide shell is set to be gradually increased from the two sides of the flow guide shell to the center position of the flow guide shell, a ridge type shape is formed, when the windscreen wiper is overturned upwards and downwards, the flow guide effect is achieved, high-speed wind noise can be reduced, and the service life of the windscreen wiper is prolonged. And in the whole overturning stroke, the water scraping device can be influenced by airflow to generate attaching force pointing to the front windshield, so that the water scraping effect is more stable.

Description

Technical Field

[0001] The present invention relates to the technical field of automotive mechanical equipment, and more specifically, to a bidirectional flipping wiper strip. Background Art

[0002] Currently, when the commonly used windshield wipers in the industry work under high-speed conditions above 120 kph, their flipping noise performance is poor, and only the wind noise requirements for downward wiping are considered, without taking into account the wind noise performance after the wiper flips.

[0003] When the wiper in the prior art wipes downward, when the high-speed air flow flows over the surface of the wiper guide shell, a downward pressure is generated on the wiper, which can prevent the wiper from being "lifted" by the air flow, and at the same time, the adhesion force of the wiper strip can be increased to stabilize the wiping effect. However, when the wiper wipes upward, the wiper impacts with the flow field air flow, and its anti-floating wing structure is extremely prone to rubber strip flutter under high-speed conditions, generating wiper noise. At the same time, this working condition will also reduce the adhesion force of the wiper strip and reduce the wiping effect.

[0004] Therefore, how to provide a bidirectional flipping wiper strip has become a technical problem that needs to be solved urgently in this field. Summary of the Invention

[0005] An object of the present invention is to provide a new technical solution for a bidirectional flipping wiper strip.

[0006] According to the first aspect of the present invention, a bidirectional flipping wiper strip is provided, including: a cover shell assembly, a guide assembly, and a wiper assembly;

[0007] The cover shell assembly is arranged on the guide assembly, and the cover shell assembly is connected to the guide assembly and an external water supply pipe;

[0008] The guide assembly includes a guide shell and an adapter block. The height of the guide shell gradually increases from both sides of the guide shell to the central position of the guide shell. A first water channel is arranged inside the guide shell, and the first water channel is connected to the cover shell assembly;

[0009] The adapter blocks are respectively arranged at both ends of the guide shell and are located inside the first water channel. The adapter block includes an insertion pipe and a guide pipe. The insertion pipe is connected to the cover shell assembly, and the guide pipe is inserted into the first water channel;

[0010] The wiper assembly is arranged below the guide shell, and the wiper assembly is connected to the guide pipe.

[0011] Optionally, the top of the guide shell is a "U" - shaped structure formed by combining two arc-shaped plates. The first water channel is an arc-shaped structure, and the center of the circle of the first water channel is located on one side of the wiper assembly.

[0012] Optionally, the interior of the guide shell is further provided with water spray holes, which are located at both ends of the bottom of the first water channel and penetrate through the first water channel, communicating with the wiper assembly.

[0013] Optionally, the insertion tube and the guide tube are located at opposite ends of the adapter block, and the insertion tube and the guide tube are connected, with the guide tube connected to the first waterway.

[0014] Optionally, the flow guiding assembly further includes plugs inserted at both ends of the first waterway.

[0015] Optionally, the housing assembly includes a housing body, a rotating frame, a second water channel, a first water hole, and a second water hole. The housing body is sleeved on the rotating frame. The second water channel, the first water hole, and the second water hole are all disposed within the rotating frame. The first water hole and the second water hole are located above and below the second water channel, respectively, and are in communication with the second water channel. The first water hole is in communication with an external water supply pipe, and the second water hole is in communication with the adapter block.

[0016] Optionally, the housing assembly further includes a rotating shaft, which is mounted on the rotating shaft bracket and is rotatably connected to the housing body.

[0017] Optionally, mounting grooves are provided on both sides of the bottom of the flow guide shell;

[0018] The wiper assembly includes two memory springs and a rubber strip. The top of the rubber strip has two fixing grooves on both sides. The first ends of the two memory springs are respectively inserted into the fixing grooves, and the second ends of the memory springs are respectively inserted into the mounting grooves.

[0019] Optionally, the memory spring is provided with a plurality of flow guide grooves, which are evenly spaced along the length of the memory spring and penetrate through the memory spring. The flow guide grooves are located outside the fixing groove and the mounting groove.

[0020] Optionally, the memory spring is provided with snap-fit ​​grooves at both ends;

[0021] The bidirectional flip wiper blade also includes a wiper cap, which is disposed at both ends of the air guide shell. The bottom of the wiper cap is provided with two L-shaped connecting plates and a snap-fit ​​plate. The first ends of the two L-shaped connecting plates are respectively connected to the two ends of the wiper cap, and the second ends of the two L-shaped connecting plates are connected to the snap-fit ​​plate. There is a gap between the L-shaped connecting plate and the bottom of the wiper cap. The bottom of the wiper cap is connected to the top of the rubber strip. The memory spring is inserted into the gap between the L-shaped connecting plate and the wiper cap. The L-shaped connecting plate and the snap-fit ​​plate are located below the memory spring, and the snap-fit ​​plate is inserted into the snap-fit ​​groove.

[0022] The beneficial effects of this invention are as follows:

[0023] This invention features a housing assembly mounted on a flow guide assembly, which is connected to the flow guide assembly and an external water supply pipe. The height of the flow guide housing gradually increases from its sides to its center. A first water channel is located inside the flow guide housing and is connected to the housing assembly. Connecting blocks are positioned at both ends of the flow guide housing and within the first water channel. An insert pipe is connected to the housing assembly and inserted into the first water channel. The wiper assembly is located below the flow guide housing and is connected to the flow guide pipe. By setting the height of the flow guide housing to gradually increase from its sides to its center, forming a ridge-like shape, this invention provides flow guidance during both upward and downward wiper rotations, reducing high-speed wind noise. Throughout the entire rotation stroke, the flow guide housing is influenced by airflow to generate a consistent force towards the windshield, resulting in more stable wiping performance. Furthermore, the ridge-like shape of the flow guide housing improves stability and prevents structural vibrations caused by wind excitation, thus avoiding abnormal noise.

[0024] Other features and advantages of the invention will become clear from the following detailed description of exemplary embodiments of the invention with reference to the accompanying drawings. Attached Figure Description

[0025] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of the invention and, together with their description, serve to explain the principles of the invention.

[0026] Figure 1 This is a structural diagram of the bidirectional flip-up wiper blade of the present invention;

[0027] Figure 2 This is a structural diagram of the flow guiding component of the present invention;

[0028] Figure 3 This is a structural diagram of the airflow guide assembly and wiper assembly of the present invention;

[0029] Figure 4 This is a structural diagram of the memory spring of the present invention;

[0030] Figure 5 This is a cross-sectional view of the housing assembly and the flow guiding assembly of the present invention;

[0031] Figure 6 This is a cross-sectional view of the flow guiding component of the present invention;

[0032] Figure 7 This is a front view of the adapter block of the present invention;

[0033] Figure 8 This is a left view of the adapter block of the present invention;

[0034] Figure 9 This is a right view of the adapter block of the present invention;

[0035] Figure 10 This is a left view of the plug of the present invention;

[0036] Figure 11 This is a front view of the plug of the present invention;

[0037] Figure 12 This is a structural diagram of the scraper cap of the present invention.

[0038] The diagram shows the following components: 1. Cover assembly; 11. Cover body; 12. Rotary shaft bracket; 13. Second water channel; 14. First water hole; 15. Second water hole; 2. Flow guide assembly; 21. Flow guide shell; 211. First water channel; 212. Spray hole; 213. Mounting groove; 22. Adapter block; 221. Insert pipe; 222. Flow guide pipe; 223. First clearance opening; 23. Plug; 24. Sealing plate; 25. Second clearance opening; 3. Wiper assembly; 31. Memory spring; 32. Rubber strip; 33. Flow guide groove; 34. Snap-fit ​​groove; 35. First wiper blade; 36. Second wiper blade; 4. Wiper cap; 41. L-shaped connecting plate; 42. Snap-fit ​​plate. Detailed Implementation

[0039] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the invention.

[0040] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the invention or its application or use.

[0041] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0042] In all the examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0043] like Figures 1 to 12 As shown, an embodiment of the present invention provides a bidirectional flip-up wiper blade, including: a cover assembly 1, a guide assembly 2, and a wiper assembly 3.

[0044] The cover assembly 1 is mounted on the flow guiding assembly 2, and the cover assembly 1 is connected to the flow guiding assembly 2 and the external water supply pipe. Specifically, water can be introduced into the cover assembly 1 through the external water supply pipe and then into the flow guiding assembly 2, enabling the bidirectional flip wiper blade of the present invention to have a precise water spraying function.

[0045] The flow guiding assembly 2 includes a flow guiding shell 21 and a transition block 22. The height of the flow guiding shell 21 gradually increases from both sides to the center of the flow guiding shell 21. A first water channel 211 is provided inside the flow guiding shell 21, and the first water channel 211 is connected to the cover assembly 1.

[0046] The adapter blocks 22 are respectively disposed at both ends of the guide shell 21 and located inside the first water channel 211. The adapter block 22 includes an insertion tube 221 and a guide tube 222. The insertion tube 221 is connected to the cover assembly 1, and the guide tube 222 is inserted into the first water channel 211.

[0047] The wiper assembly 3 is located below the air guide housing 21, and the wiper assembly 3 is connected to the air guide pipe 222.

[0048] Specifically, when the wiper blades need to spray water, water is supplied to the inside of the cover assembly 1 through the external water supply pipe. The water flows through the cover assembly 1 and is delivered to the first water channel 211 of the guide shell 21. The first water channel 211 delivers the water to the adapter block 22 and guides it into the wiper assembly 3 through the adapter block 22, thereby causing the water to spray out from the wiper assembly 3.

[0049] This invention involves mounting a housing assembly 1 on a flow guide assembly 2, with the housing assembly 1 connected to the flow guide assembly 2 and an external water supply pipe. The height of the flow guide housing 21 gradually increases from both sides to the center of the flow guide housing 21. A first water channel 211 is provided inside the flow guide housing 21, which is connected to the housing assembly 1. Adapter blocks 22 are respectively located at both ends of the flow guide housing 21 and inside the first water channel 211. An insert pipe 221 is connected to the housing assembly 1, and the flow guide pipe 222 is inserted into the first water channel 211. A wiper assembly 3 is located below the flow guide housing 21 and is connected to the flow guide pipe 222. This invention sets the height of the air guide shell 21 to gradually increase from both sides of the air guide shell 21 to the center position, forming a ridge-like shape. It has a guiding effect when the wiper flips up and down, which can reduce high-speed wind noise. Throughout the entire flipping stroke, it can be affected by the airflow to generate a force that adheres to the windshield, making the wiping effect more stable. In addition, the ridge-like shape of the air guide shell 21 improves stability and avoids the problem of structural vibration caused by wind excitation of the wiper blade, which can lead to abnormal noise.

[0050] In one embodiment of the bidirectional flip wiper blade of the present invention, such as Figures 1 to 4 ,as well as Figure 6As shown, the top of the flow guide shell 21 is a "ji" - shaped structure formed by combining two arc - shaped plates. The first water channel 211 is an arc - shaped structure, and the center of the circle of the first water channel 211 is located on one side of the wiper assembly 3.

[0051] Specifically, since the flow guide shell 21 is in a "ji" - shaped structure, when the wiper flips up and down, the arc - shaped plates on both sides of the flow guide shell 21 can provide a flow - guiding effect on the wind, effectively reducing the wind noise.

[0052] Moreover, in the present invention, by making the first water channel 211 an arc - shaped structure and locating the center of the circle of the first water channel 211 on one side of the wiper assembly 3, after the water flow passes through the housing assembly 1 and is transported into the first water channel 211 of the flow guide shell 21, the water flow will not stagnate in the first water channel 211, improving the water flow transportation efficiency.

[0053] In an embodiment of the double - way flipping wiper strip of the present invention, as Figure 6 shown, a water spraying hole 212 is further provided inside the flow guide shell 21. The water spraying hole 212 is located at both ends of the bottom of the first water channel 211, and the water spraying hole 212 penetrates through the first water channel 211 and is connected to the wiper assembly 3.

[0054] In the present invention, by locating the water spraying hole 212 at both ends of the bottom of the first water channel 211, making the water spraying hole 212 penetrate through the first water channel 211 and be connected to the wiper assembly 3, when the water flow enters the first water channel 211, under the action of the arc - shaped first water channel 211, the water flow can flow to both sides of the first water channel 211, and then the water spraying hole 212 can introduce the water flow into the wiper assembly 3.

[0055] In an embodiment of the double - way flipping wiper strip of the present invention, as Figure 7 、 Figure 8 and Figure 9 shown, the insertion tube 221 and the flow guide tube 222 are respectively located at both ends of the adapter block 22, and the insertion tube 221 and the flow guide tube 222 are connected, and the flow guide tube 222 is connected to the first water channel 211.

[0056] Specifically, the insertion tube 221 and the flow guide tube 222 have a height difference, and the insertion tube 221 is located above the flow guide tube 222. The insertion tube 221 is inserted into the interior of the housing assembly 1.

[0057] The bottom of the adapter block 22 has a first avoidance opening 223, and the first avoidance opening 223 is located above the wiper assembly 3.

[0058] The present invention places the insertion tube 221 and the guide tube 222 at the two ends of the adapter block 22 and connects the insertion tube 221 and the guide tube 222, and connects the guide tube 222 to the first water channel 211. This enables the insertion tube 221 to guide the water flow inside the cover assembly 1 into the guide tube 222 and transport it to the first water channel 211, thereby further improving the efficiency of water flow transportation.

[0059] In one embodiment of the bidirectional flip wiper blade of the present invention, such as Figure 1 , Figure 10 and Figure 11 As shown, the flow guiding component 2 also includes a plug 23, which is inserted into both ends of the first waterway 211.

[0060] Specifically, the side wall of the plug 23 is also connected to a sealing plate 24, and a second clearance opening 25 is provided below the sealing plate 24. The second clearance opening 25 is located above the wiper assembly 3, and the structure of the second clearance opening 25 matches that of the first clearance opening 223.

[0061] The plug 23 is also arc-shaped and corresponds to the structure of the first waterway 211. The vertical cross-section of the sealing plate 24 is the same as the vertical cross-section of the guide shell 21. The plug 23 can prevent the water in the first waterway 211 from leaking to the outside and also increases the pressure inside the first waterway 211.

[0062] In one embodiment of the bidirectional flip wiper blade of the present invention, such as Figure 1 , Figure 2 and Figure 5 As shown, the housing assembly 1 includes a housing body 11, a rotating shaft frame 12, a second water channel 13, a first water hole 14, and a second water hole 15. The housing body 11 is sleeved on the rotating shaft frame 12. The second water channel 13, the first water hole 14, and the second water hole 15 are all located inside the rotating shaft frame 12. The first water hole 14 and the second water hole 15 are located above and below the second water channel 13, respectively, and are connected to the second water channel 13. The first water hole 14 is connected to an external water supply pipe, and the second water hole 15 is connected to a transition block 22.

[0063] Specifically, the second water channel 13, the first water hole 14, and the second water hole 15 are located above the guide shell 21, and the insertion tube 221 is inserted into the second water hole 15.

[0064] When the wiper blades need to spray water, water is supplied to the first water hole 14 through the external water supply pipe. The first water hole 14 guides the water flow into the second water channel 13. Since the second water hole 15 is connected to the second water channel 13, the water flow enters the second water hole 15 and is guided into the adapter block 22 through the insertion tube 221, and flows into the guide pipe 222, and then is transported to the first water channel 211, which further improves the efficiency of water flow.

[0065] In one embodiment of the bidirectional flip wiper blade of the present invention, the cover assembly 1 further includes a rotating shaft, which is disposed on the rotating shaft bracket 12 and is rotatably connected to the cover body 11.

[0066] Specifically, the rotating shaft has a snap-fit ​​structure, which enables the rotating shaft bracket 12 to rotate ±15° around the rotating shaft.

[0067] In one embodiment of the bidirectional flip wiper blade of the present invention, such as Figure 2 , Figure 5 and Figure 6 As shown, mounting grooves 213 are provided on both sides of the bottom of the flow guide shell 21.

[0068] The wiper assembly 3 includes two memory springs and a rubber strip 32. The top of the rubber strip 32 has two fixing grooves on both sides. The first ends of the two memory springs are inserted into the fixing grooves respectively, and the second ends of the memory springs are inserted into the mounting grooves 213 respectively.

[0069] Specifically, the bottom of the rubber strip 32 has two first scraper strips 35 and second scraper strips 36. The tops of the first scraper strips 35 and second scraper strips 36 are connected to the bottom of the rubber strip 32. The two first scraper strips 35 are located on both sides of the second scraper strip 36. The length of the second scraper strip 36 is greater than the length of the first scraper strip 35, thereby effectively improving the cleaning effect.

[0070] In one embodiment of the bidirectional flip wiper blade of the present invention, such as Figure 4 As shown, the memory spring is provided with multiple flow channels 33. The flow channels 33 are evenly spaced along the length direction of the memory spring and penetrate through the memory spring. The flow channels 33 are located outside the fixing groove and the mounting groove 213.

[0071] Specifically, the guide channel 33 is located below the first water channel 211, allowing water to fall from the spray hole 212 onto the memory spring 31, thereby causing the water to flow through the guide channel 33 to the bottom of the rubber strip 32, thus enabling the bidirectional flip wiper strip of the present invention to have a precise water spraying function.

[0072] In one embodiment of the bidirectional flip wiper blade of the present invention, such as Figure 1 and Figure 12 As shown, the memory spring has a snap-fit ​​groove 34 at each end.

[0073] The bi-directional flipping wiper strip further includes wiper caps 4, which are arranged at both ends of the diversion housing 21. Two L-shaped connecting plates 41 and clamping plates 42 are provided at the bottom of the wiper cap 4. The first ends of the two L-shaped connecting plates 41 are respectively connected to both ends of the wiper cap 4, and the second ends of the two L-shaped connecting plates 41 are both connected to the clamping plate 42. There is a gap between the L-shaped connecting plate 41 and the bottom of the wiper cap 4. The bottom of the wiper cap 4 is connected to the top of the rubber strip 32. The memory reed is inserted into the gap between the L-shaped connecting plate 41 and the wiper cap 4. The L-shaped connecting plate 41 and the clamping plate 42 are located below the memory reed, and the clamping plate 42 is inserted into the clamping groove 34.

[0074] Specifically, the top of the wiper cap 4 is also in a "ji" shape structure and matches the external structure of the diversion housing 21.

[0075] In the present invention, by connecting the first ends of the two L-shaped connecting plates 41 to both ends of the wiper cap 4 respectively, connecting the second ends of the two L-shaped connecting plates 41 to the clamping plate 42, and inserting the memory reed 31 into the gap between the L-shaped connecting plate 41 and the wiper cap 4, the L-shaped connecting plate 41 and the clamping plate 42 are located below the memory reed 31, and the clamping plate 42 is inserted into the clamping groove 34, the wiper cap 4 can be stably installed on the diversion housing 21, and the problem of water leakage can be avoided.

[0076] Although some specific embodiments of the present invention have been described in detail by way of examples, those skilled in the art should understand that the above examples are only for illustration and not for limiting the scope of the present invention. Those skilled in the art should understand that the above embodiments can be modified without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A bi-directional flip wiper strip, characterized in that, Comprising: A housing assembly, a diversion assembly, and a wiper assembly; The housing assembly is disposed on the diversion assembly, and the housing assembly is in communication with the diversion assembly and an external water supply pipe; The diversion assembly includes a diversion housing and an adapter block. The height of the diversion housing gradually increases from both sides of the diversion housing towards the central position of the diversion housing. A first water channel is provided inside the diversion housing, and the first water channel is in communication with the housing assembly; The adapter blocks are respectively disposed at both ends of the diversion housing and are located inside the first water channel. The adapter block includes an insertion tube and a diversion tube. The insertion tube is in communication with the housing assembly, and the diversion tube is inserted into the first water channel; The wiper assembly is disposed below the diversion housing, and the wiper assembly is in communication with the diversion tube.

2. The bi-directional reversing wiper strip of claim 1 wherein, The top of the diversion housing is a "ji" - shaped structure formed by combining two arc - shaped plates. The first water channel is an arc - shaped structure, and the center of the circle of the first water channel is located on one side of the wiper assembly.

3. The bi-directional reversing rain blade strip of claim 1 wherein, Spray holes are further provided inside the diversion housing. The spray holes are located at both ends of the bottom of the first water channel, and the spray holes penetrate through the first water channel and are in communication with the wiper assembly.

4. The bi-directional reversing rain blade strip of claim 1 wherein, The insertion tube and the diversion tube are respectively located at both ends of the adapter block, and the insertion tube and the diversion tube are in communication. The diversion tube is in communication with the first water channel.

5. The bi-directional reversing rain blade strip of claim 1 wherein, The diversion assembly further includes a plug, and the plug is inserted into both ends of the first water channel.

6. The bi-directional reversing rain blade strip of claim 1 wherein, The housing assembly includes a housing body, a rotating shaft bracket, a second water channel, a first water hole, and a second water hole. The housing body is sleeved on the rotating shaft bracket. The second water channel, the first water hole, and the second water hole are all provided inside the rotating shaft bracket. The first water hole and the second water hole are respectively located above and below the second water channel and are in communication with the second water channel. The first water hole is in communication with the external water supply pipe, and the second water hole is in communication with the adapter block.

7. The bi-directional reversing rain blade of claim 6 wherein, The housing assembly further includes a rotating shaft. The rotating shaft is disposed on the rotating shaft bracket, and the rotating shaft is rotationally connected to the housing body.

8. The bi-directional reversing rain blade of claim 1 wherein, Mounting grooves are respectively provided on both sides of the bottom of the diversion housing; The wiper assembly includes two memory reed pieces and a rubber strip. Fixing grooves are provided on both sides of the top of the rubber strip. The first ends of the two memory reed pieces are respectively inserted into the fixing grooves, and the second ends of the memory reed pieces are respectively inserted into the mounting grooves.

9. The bi-directional reversing rain blade of claim 8 wherein, A plurality of diversion grooves are provided on the memory reed pieces. The diversion grooves are evenly spaced along the length direction of the memory reed pieces, and the diversion grooves penetrate through the memory reed pieces. The diversion grooves are located outside the fixing grooves and the mounting grooves.

10. The bi-directional reversing rain blade of claim 8 wherein, Clamping grooves are respectively provided at both ends of the memory reed pieces; The bidirectional overturning wiper strip further comprises a wiper cap arranged at both ends of the flow guide shell, the bottom of the wiper cap is provided with two L-shaped connecting plates and a clamping plate, the first ends of the two L-shaped connecting plates are connected with the two ends of the wiper cap respectively, the second ends of the two L-shaped connecting plates are connected with the clamping plate, the L-shaped connecting plates have gaps with the bottom of the wiper cap, the bottom of the wiper cap is connected with the top of the rubber strip, the memory reed is inserted into the gap between the L-shaped connecting plates and the wiper cap, the L-shaped connecting plates and the clamping plate are located below the memory reed, and the clamping plate is inserted into the clamping groove.

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