A wiper head rod structure

Abstract

The application relates to the technical field of windscreen wipers, in particular to a windscreen wiper head rod structure which comprises a fixed end, a head rod main body and a connecting end, the head rod main body comprises a first part and a second part, the fixed end is integrally formed at the left end of the first part, the connecting end is integrally formed at the right end of the second part, the second part can be driven by a driving part to reciprocate towards or away from the first part, and the windscreen wiper strip connected to the connecting end can reciprocate along the length direction of the windscreen wiper strip. The driving part can drive the whole windscreen wiper strip to reciprocate along the length direction of the windscreen wiper strip, so that the windscreen wiper strip can not only produce a transverse wiping effect on the front glass of a vehicle, but also produce a longitudinal wiping effect on the front glass of the vehicle relative to the transverse wiping effect, so that the whole windscreen wiper can more efficiently clean the impurities adhered to the front glass of the vehicle.

Description

Technical Field

[0001] This invention relates to the field of windshield wiper technology, specifically to a windshield wiper head structure. Background Technology

[0002] Windshield wipers are tools used to clean the windshield of a vehicle to prevent rainwater and other debris from obstructing vision. The wiper head is an important component of the wiper system; its function is to connect the wiper to the drive mechanism, enabling the entire wiper system to operate normally.

[0003] Current wiper head arms only serve a connecting function and have poor functionality. For example, current head arms can only transmit the driving force of the drive unit to the wiper blade, causing the wiper blade to rotate at a certain angle to wipe away rain or dust on the windshield. If there are many impurities adhering to the windshield, the current wiper head arms cannot effectively remove the impurities. Summary of the Invention

[0004] The purpose of this invention is to provide a wiper head structure to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a wiper head rod structure, comprising a fixed end, a head rod body, and a connecting end. The head rod body comprises a first part and a second part. The fixed end is integrally formed and disposed at the left end of the first part, and the connecting end is integrally formed and disposed at the right end of the second part. The second part can be driven by a drive unit to reciprocate towards or away from the first part, so that the wiper blade connected to the connecting end can reciprocate along its own length direction.

[0006] Preferably, the lower surface of the first part has a first groove; the lower surface of the second part has a second groove; a slider is fixedly connected inside the second groove, and the left end of the slider is slidably connected inside the first groove.

[0007] Preferably, the drive unit includes a bracket, a rotating shaft, a roller, and an inclined plate. The rotating shaft passes through the roller and is fixedly connected to the roller, and the rotating shaft is eccentrically positioned relative to the roller.

[0008] The bracket is elastically connected to the lower surface of the first part by an elastic component;

[0009] The slide bar has an inclined groove, and the inclined plate is slidably inserted into the inside of the inclined groove.

[0010] Preferably, the bracket includes a U-shaped seat and a top column fixed to the top of the U-shaped seat, the inclined plate is fixedly connected to the top of the top column, and the rotating shaft is rotatably connected to the U-shaped seat.

[0011] Preferably, the elastic component includes two fixed seats and two straight springs. The fixed seats are fixedly connected to the first part, and the lower surface of the slide bar is slidably connected to the upper surface of the fixed seats. The two ends of the straight springs are fixedly connected to the fixed seats and the U-shaped seats, respectively. The two straight springs are respectively disposed on the left and right sides of the top column.

[0012] Preferably, the slider has grooves on both its front and rear sides, and a slider is slidably connected inside the groove, the slider being fixedly connected to the inner wall of the first groove.

[0013] Preferably, the roller includes a wheel body and a rubber sleeve fitted over the outside of the wheel body; the rotating shaft passes through the wheel body and is fixedly connected to the wheel body, and the rotating shaft is eccentrically positioned relative to the wheel body.

[0014] Preferably, there are several drive units, and each pair of adjacent rotating shafts are fixedly connected by a synchronous shaft.

[0015] Preferably, a baffle is fixed to the right end of the first part, the baffle is U-shaped, and the right end of the baffle wraps around the left end of the second part.

[0016] Preferably, a piston sleeve is fitted onto the left end of the slide bar;

[0017] A base plate is fixed to the lower surface of the first part. The base plate forms a chamber with the left end of the first groove. The piston sleeve is slidably sealed inside the chamber. The one-way valve is in one-way communication with the chamber.

[0018] A gap is formed between the upper surface of the slider and the inner top wall of the first groove.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] 1. In this invention, the driving unit can drive the second part to reciprocate along its own length direction, thereby driving the entire wiper blade to reciprocate along its own length direction. In this way, the wiper blade can not only produce a lateral wiping effect on the windshield, but also produce a longitudinal wiping effect on the windshield relative to the lateral wiping effect, so that the entire wiper can more efficiently clean the impurities adhering to the windshield.

[0021] 2. This invention uses an eccentric setting between the rotating shaft and the roller to make the roller produce ups and downs when rolling. Then, with the help of the inclined groove and the inclined plate, the reciprocating motion of the slide and even the entire wiper blade can be realized. The overall structure is cleverly and reasonably designed, occupies little space, and the entire drive unit can be well hidden between the first part and the windshield. It is highly practical and does not affect the overall aesthetics. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the structure of the present invention;

[0024] Figure 3 This is a front view structural diagram of the present invention;

[0025] Figure 4 This is a schematic diagram of the structure of the first part of the present invention;

[0026] Figure 5 This is a cross-sectional perspective view of the three-dimensional structure of the present invention;

[0027] Figure 6 For the present invention Figure 5 A partial structural diagram;

[0028] Figure 7 For the present invention Figure 6 Enlarged structural diagram at point A in the middle;

[0029] Figure 8 This is a front view schematic diagram of the slider structure of the present invention;

[0030] Figure 9 For the present invention Figure 8 A schematic diagram of a local structure in the image;

[0031] Figure 10 This is a schematic diagram of the left-side structure of the roller of the present invention;

[0032] Figure 11 This is a schematic diagram of a partial cross-sectional structure of the present invention.

[0033] In the diagram: 11. Fixed end; 12. Head rod body; 121. First part; 1211. First groove; 1212. Slider; 122. Second part; 1221. Second groove; 13. Connecting end; 2. Sliding bar; 21. Sliding groove; 22. Inclined groove; 23. Piston sleeve; 3. Drive unit; 31. U-shaped seat; 32. Rotating shaft; 33. Roller; 331. Wheel body; 332. Rubber sleeve; 34. Top column; 35. Fixed seat; 36. Straight spring; 37. Inclined plate; 38. Synchronous shaft; 41. Base plate; 42. One-way valve; 43. Chamber; 44. Gap; 5. Baffle. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] Please see Figures 1-11 The present invention provides a technical solution:

[0036] A wiper head rod structure includes a fixed end 11, a head rod body 12, and a connecting end 13. The fixed end 11 is used to connect with the wiper drive device, and the connecting end 13 is used to connect with the wiper auxiliary rod. The above are all prior art and will not be described in detail here.

[0037] Unlike existing technologies, this invention divides the headstock body 12 into two parts, specifically, as follows: Figures 1-5 As shown, the head rod body 12 includes a first part 121 and a second part 122. The fixed end 11 is integrally formed at the left end of the first part 121, and the connecting end 13 is integrally formed at the right end of the second part 122. The second part 122 can be driven by the drive unit 3 to reciprocate towards or away from the first part 121, so that the wiper blade connected to the connecting end 13 can reciprocate along its own length direction. Specifically, since the drive unit 3 can drive the second part 122 to reciprocate along its own length direction, it can then drive the entire wiper blade to reciprocate along its own length direction. In this way, the wiper blade can not only produce a lateral wiping effect on the windshield, but also a longitudinal wiping effect relative to the lateral wiping effect, so that the entire wiper can more efficiently clean the impurities adhering to the windshield.

[0038] The sliding connection between the first part 121 and the second part 122 is as follows: A first groove 1211 is provided on the lower surface of the first part 121. The first groove 1211 can reduce the weight of the first part 121 and save materials. A second groove 1221 is provided on the lower surface of the second part 122. Similarly, the second groove 1221 can reduce the weight of the second part 122 and save materials. A slider 2 is fixedly connected inside the second groove 1221. The left end of the slider 2 is slidably connected inside the first groove 1211. Furthermore, a sliding groove 21 is provided on both the front and rear sides of the slider 2. A slider 1212 is slidably connected inside the sliding groove 21. The slider 1212 is fixedly connected to the inner wall of the first groove 1211. On the one hand, the sliding groove 21 and the slider 1212 can reduce the friction between the slider 2 and the first part 121, making the sliding smoother. On the other hand, the sliding groove 21 and the slider 1212 can also prevent the slider 2 from falling out of the first groove 1211.

[0039] In this embodiment, the specific structure of the drive unit 3 is as follows: The drive unit 3 includes a bracket, a rotating shaft 32, a roller 33, and an inclined plate 37. The rotating shaft 32 passes through the roller 33 and is fixedly connected to the roller 33. The rotating shaft 32 and the roller 33 are eccentrically arranged. The rotating shaft 32 is rotatably connected to the bracket. The rotational connection method between the rotating shaft 32 and the bracket is not limited here. The bracket is elastically connected to the lower surface of the first part 121 through an elastic member. Therefore, under the elastic force of the elastic member, the roller 33 can maintain contact with the surface of the windshield, and the friction between the roller 33 and the windshield is large. An inclined groove 22 is provided on the slide bar 2, and the inclined plate 37 is slidably inserted into the inside of the inclined groove 22.

[0040] The working principle of the aforementioned drive unit 3 is as follows: the roller 33 maintains contact with the windshield under the elastic force of the elastic component. When the entire first part 121 and the second part 122 rotate around the fixed end 11 under the drive of the wiper drive device, the roller 33 itself will also roll. Since the rotating shaft 32 and the roller 33 are eccentrically set, there will be height fluctuations during the rolling of the roller 33, that is, there will be height fluctuations in the entire bracket. This height fluctuation will be converted into the slide bar 2 along its own length through the cooperation between the inclined groove 22 and the inclined plate 37. The reciprocating extension and retraction motion in the direction can drive the entire wiper blade to move back and forth along its own length. In the above solution, the eccentric setting of the rotating shaft 32 and the roller 33 allows the roller 33 to produce ups and downs when rolling. Then, in conjunction with the inclined groove 22 and the inclined plate 37, the reciprocating motion of the slide bar 2 and even the entire wiper blade can be realized. The overall structure is cleverly and reasonably designed, occupies little space, and the entire drive unit 3 can be well hidden between the first part 121 and the windshield. It is highly practical and does not affect the overall aesthetics.

[0041] like Figures 8-9 As shown, the bracket includes a U-shaped seat 31 and a top column 34 fixed on the top of the U-shaped seat 31. Both the U-shaped seat 31 and the top column 34 can be made of stainless steel. An inclined plate 37 is fixedly connected to the top of the top column 34, and a rotating shaft 32 is rotatably connected to the U-shaped seat 31.

[0042] Furthermore, the elastic component includes two fixed seats 35 and two straight springs 36. The fixed seats 35 are fixedly connected to the first part 121. The fixed seats 35 are generally long rods, and their cross-sectional shape can be circular or square as shown in the figure. The lower surface of the slider 2 is slidably connected to the upper surface of the fixed seats 35. The fixed seats 35 can both limit the position of the slider 2 and support the straight springs 36. The two ends of the straight springs 36 are fixedly connected to the fixed seats 35 and the U-shaped seat 31, respectively. The two straight springs 36 are respectively set on the left and right sides of the top column 34, so as to provide stable support for the bracket.

[0043] Furthermore, in this embodiment, the drive unit 3 is provided in several parts, such as three as shown in the figure, so that a greater driving force can be generated to drive the slider 2 to reciprocate. Each pair of adjacent rotating shafts 32 are fixedly connected by a synchronous shaft 38. The function of the synchronous shaft 38 is to enable multiple rollers 33 to rotate synchronously.

[0044] To increase the friction between the roller 33 and the windshield, the roller 33 in this embodiment has the following specific structure: The roller 33 includes a wheel body 331 and a rubber sleeve 332 fitted outside the wheel body 331. The outer circumferential surface of the rubber sleeve 332 is rough, and it can generate a large friction force when it contacts the windshield, ensuring that the roller 33 can roll when the first part 121 rotates; the rotating shaft 32 passes through the wheel body 331 and is fixedly connected to the wheel body 331, and the rotating shaft 32 is eccentrically set with respect to the wheel body 331.

[0045] To improve the overall heat dissipation capacity of the device and reduce actual wear, this embodiment also includes the following structure:

[0046] A piston sleeve 23 is fitted onto the left end of the slide bar 2; a base plate 41 is fixed to the lower surface of the first part 121, and the base plate 41 forms a chamber 43 with the left end of the first groove 1211. The piston sleeve 23 is slidably sealed inside the chamber 43, and the one-way valve 42 communicates unidirectionally with the chamber 43; a gap 44 is formed between the upper surface of the slide bar 2 and the inner top wall of the first groove 1211. The working principle of the above scheme is as follows: when the slide bar 2 reciprocates, further, as... Figure 11As shown, when the piston sleeve 23 moves to the left, the gas in the chamber 43 cannot be discharged through the one-way valve 42, but will be discharged through the gap 44. Therefore, the gas flowing through the gap 44 can carry away the heat generated by the sliding of the slider 2, and also carry away the heat generated by the sliding of the inclined groove 22 and the inclined plate 37. When the piston sleeve 23 moves to the right, since the air intake of the one-way valve 42 is greater than the air intake of the gap 44, the gap 44 cannot meet the air intake demand of the chamber 43. Therefore, a large amount of external cold air will enter the interior of the chamber 43 through the one-way valve 42. Moreover, although the gap 44 cannot meet the air intake demand of the chamber 43, some gas will still flow back along the gap 44. At this time, as Figure 11 As shown, the inclined groove 22 is tilted to the upper right, so some of the returning gas will flow into the interior of the inclined groove 22, thereby enhancing the air exchange efficiency at the top of the inclined groove 22 and improving the heat dissipation effect.

[0047] A baffle 5 is fixed to the right end of the first part 121. The baffle 5 is U-shaped and the right end of the baffle 5 wraps around the left end of the second part 122. The baffle 5 is used to prevent foreign objects from entering between the first part 121 and the second part 122. It can also limit the relative position of the first part 121 and the second part 122 to prevent the first part 121 and the second part 122 from tilting.

[0048] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A wiper head rod structure, characterized by, The utility model relates to a rain -proof wiper blade, including fixed end, head pole main part and connecting end, the head pole main part includes first part and second part, wherein, the fixed end is integrally formed and is arranged at the left end of first part, the connecting end is integrally formed and is arranged at the right end of second part, the second part can be driven by drive part and carries out reciprocating motion of approaching or away from first part, makes the rain -proof wiper blade of connecting on the connecting end can reciprocate along the length direction of itself, The lower surface of the first part is provided with a first groove; the lower surface of the second part is provided with a second groove; the inside of the second groove is fixedly connected with a sliding strip; the left end of the sliding strip is slidingly connected in the inside of the first groove; The drive part includes a bracket, a rotating shaft, a roller and an inclined plate; the rotating shaft penetrates through the roller and is fixedly connected with the roller; and the rotating shaft and the roller are eccentrically arranged; The bracket is elastically connected to the lower surface of the first part by an elastic component; The sliding strip is provided with an inclined groove; the inclined plate is slidingly inserted into the inside of the inclined groove; The bracket includes a U-shaped seat and a top column fixed to the top of the U-shaped seat; the inclined plate is fixedly connected to the top of the top column; the rotating shaft is rotationally connected with the U-shaped seat; The front and rear sides of the sliding strip are provided with sliding grooves; the sliding grooves are slidingly connected with sliding blocks; and the sliding blocks are fixedly connected with the inner wall of the first groove.

2. A wiper head rod structure according to claim 1, wherein The elastic component includes two fixed seats and two straight springs; the fixed seats are fixedly connected with the first part; the lower surface of the sliding strip is slidingly connected with the upper surface of the fixed seat; the two ends of the straight springs are respectively fixedly connected with the fixed seat and the U-shaped seat; and the two straight springs are respectively arranged on the left and right sides of the top column.

3. A wiper head rod structure according to claim 1, wherein The roller includes a wheel body and a rubber sleeve sleeved outside the wheel body; the rotating shaft penetrates through the wheel body and is fixedly connected with the wheel body; and the rotating shaft and the wheel body are eccentrically arranged.

4. A wiper head rod structure according to claim 1, wherein The drive part is provided with a plurality of drive parts; and each adjacent two rotating shafts are fixedly connected by a synchronous shaft.

5. The wiper head rod structure of claim 1, wherein The right end of the first part is fixedly provided with a baffle; the baffle is in a U shape; and the right end of the baffle is wrapped around the left end of the second part.

6. A wiper head rod structure according to claim 1, wherein The left end of the sliding strip is sleeved with a piston sleeve; The lower surface of the first part is fixedly provided with a bottom plate; the left end of the first groove is formed with a chamber in cooperation with the bottom plate; the piston sleeve is slidingly and sealingly arranged in the inside of the chamber; and a one-way valve is in one-way communication with the chamber; The upper surface of the sliding strip and the inner top wall of the first groove are formed with a gap.

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