Windscreen wiper system

Abstract

The invention discloses a windscreen wiper system which comprises a gear motor, a connecting rod mechanism, a wiping arm assembly and a wiping brush assembly, the gear motor is connected with the connecting rod mechanism, the wiping arm assembly is connected with the connecting rod mechanism, the wiping brush assembly is connected with the wiping arm assembly, and the wiping arm assembly comprises a wiping arm and a water spraying assembly. A first groove is formed in the first side wall, facing a windshield, of the wiping arm, a supporting plate is arranged on the second side wall of the wiping arm, a second groove is formed between the supporting plate and the wiping arm, a pressing block is arranged on the supporting plate, and after the water spraying assembly is matched with the first groove and the second groove, the water spraying assembly is clamped among the wiping arm, the supporting plate and the pressing block. Friction between the water spraying pipe and the wiping arm can be avoided.

Description

Technical Field

[0001] The invention relates to a windshield wiper system. Background Art

[0002] Motor vehicles are usually equipped with a windshield wiper system for wiping and cleaning the windshield without interfering with the driver's sight. The existing wiper system usually consists of a reduction motor, a connecting rod mechanism, a wiper arm assembly, and a wiper brush assembly. The reduction motor is connected to the connecting rod mechanism, the wiper arm assembly is connected to the connecting rod mechanism, and the wiper brush assembly is connected to the wiper arm assembly.

[0003] When the wiper system needs to work, first send a work command to the reduction motor, the reduction motor outputs power to the connecting rod mechanism, the connecting rod mechanism drives the wiper arm assembly to reciprocate, and the wiper brush assembly reciprocates with the wiper arm to clean the windshield surface.

[0004] The scraper arm assembly includes a water spray pipe, which is generally clamped on the scraper arm assembly with a clip, and the clip and the water spray pipe are in clearance. The scraper arm assembly with the above structure has the following disadvantages: the water spray pipe is not fixed on the scraper arm, and the scraper arm is prone to friction with the water spray pipe during movement, resulting in the water spray pipe being cut, leaking, etc. Summary of the invention

[0005] The invention provides a windshield wiper system, which can avoid friction between a water spray pipe and a wiper arm.

[0006] The technical solutions to the above problems are as follows:

[0007] The windshield wiper system includes a reduction motor, a connecting rod mechanism, a wiper arm assembly, and a wiper brush assembly. The reduction motor is connected to the connecting rod mechanism, the wiper arm assembly is connected to the connecting rod mechanism, and the wiper brush assembly is connected to the wiper arm assembly. The wiper arm assembly includes a wiper arm and a water spray assembly. A first groove is provided on the first side wall of the wiper arm facing the windshield, a support plate is provided on the second side wall of the wiper arm, a second groove is formed between the support plate and the wiper arm, and a pressure block is provided on the support plate. After the water spray assembly cooperates with the first groove and the second groove, the water spray assembly is clamped between the wiper arm, the support plate and the pressure block.

[0008] Furthermore, the scraper arm comprises a scraper arm body, one end of the scraper arm body is bent to form a bent section, and support plates are provided on the second side walls of the scraper arm body and the bent section.

[0009] Furthermore, the support plate includes a first support portion, one end of which is fixed to the second side wall of the scraper arm, the first support portion is bent to form a second support portion, and the second groove is formed between the first support portion, the second support portion and the scraper arm.

[0010] Furthermore, one end of the pressing block is fixed to the second supporting portion, and the other end of the pressing block faces the second side wall of the scraper arm. A clearance opening is provided between the other end of the pressing block and the second side wall of the scraper arm for the water spray assembly to be inserted into the second groove.

[0011] Furthermore, the water spray assembly includes a main pipe, a three-way connector, an intermediate pipe, a protective sleeve, a branch pipe, and a nozzle. The main pipe is connected to the three-way connector, one end of the intermediate pipe is connected to the three-way connector, the protective sleeve is hollowly sleeved on the main pipe and / or the intermediate pipe, one end of the branch pipe is connected to the intermediate pipe, the branch pipe cooperates with the first groove and the second groove, and the nozzle is connected to the other end of the branch pipe.

[0012] Furthermore, it also includes a pipe guide component for being hollowly sleeved on the main pipe and / or the intermediate pipe, the pipe guide component includes a pipe sleeve, a plug for plugging with the vehicle body, and a spring buckle, one end of the plug is fixed to the circumference of the pipe sleeve, a clearance hole is provided on the circumference of the plug, one end of the spring buckle is located in the clearance hole and fixed to the plug, and the other end of the spring buckle is located outside the clearance hole.

[0013] Furthermore, the pipeline guide component also includes a baffle plate for abutting against the vehicle body, and the baffle plate is fixed to one end of the pipe sleeve or the plug.

[0014] Furthermore, it also includes a first guide member for guiding the connecting rod mechanism, and the first guide member is slidably matched with the connecting rod mechanism.

[0015] Furthermore, the first guide member includes a mounting component and a guide rail. After the mounting component and the guide rail are fixed, an angle is formed between the mounting component and the guide rail, and the connecting rod mechanism and the guide rail are slidably matched.

[0016] Furthermore, the side portion of the installation component is bent to form a first reinforcement portion, and the installation component is stamped to form a second reinforcement portion on the installation component.

[0017] In the present invention, the water spray assembly is clamped between the scraper arm, the support plate and the pressing block, and the water spray assembly is fixed on the scraper arm. When the scraper arm is working, the water spray assembly moves with the scraper arm, thereby avoiding relative movement between the scraper arm and the water spray assembly, and further avoiding water leakage caused by the water spray assembly being cut. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The invention is a perspective view of a windshield wiper system in a first direction.

[0019] Figure 2 The present invention is a perspective view of a portion of a windshield wiper system in a second direction.

[0020] Figure 3 A schematic diagram of a portion of a scraper arm.

[0021] Figure 4 A schematic diagram of the pipe guide component.

[0022] Figure 5 is a schematic diagram of the first guide member.

[0023] Markings in the attached drawings:

[0024] Reducer motor 1, connecting rod mechanism 2, scraper arm assembly 3, scraper arm 3a, scraper arm body 3a1, bending section 3a2, first groove 3b, support plate 3c, first support part 3c1, second support part 3c2, second groove 3d, pressure block 3e, make way port 3f, scraper and brush assembly 4, main pipeline 5, three-way connector 6, intermediate pipeline 7, protective sleeve 8, branch pipeline 9, pipe joint 9a, nozzle 10, pipe sleeve 11, plug 12, spring buckle 13, baffle 14, mounting component 15, first reinforcement part 15a, second reinforcement part 15b, guide rail 16, protrusion 16a. DETAILED DESCRIPTION

[0025] In order to more clearly illustrate the examples of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other implementation methods can be obtained according to the drawings in the specification without paying creative work, and these implementation methods are still within the protection scope of the claims of the present invention.

[0026] like Figures 1 to 5 The windshield wiper system of the present invention comprises a reduction motor 1, a connecting rod mechanism 2, a wiper arm assembly 3, and a wiper assembly 4. The reduction motor 1 is connected to the connecting rod mechanism 2. The reduction motor 1 is composed of a motor and a reducer. The reducer is composed of a worm gear mechanism. The connecting rod mechanism 2 preferably adopts a planar four-bar linkage mechanism.

[0027] The scraper arm assembly 3 is connected to the connecting rod mechanism 2, and the scraper brush assembly 4 is connected to the scraper arm assembly 3. The scraper arm assembly 3 includes a scraper arm 3a and a water spray assembly. The scraper arm 3a is provided with a first groove 3b on the first side wall facing the windshield, and a support plate 3c is provided on the second side wall of the scraper arm 3a. A second groove 3d is formed between the support plate 3c and the scraper arm 3a, and a pressure block 3e is provided on the support plate 3c. After the water spray assembly cooperates with the first groove 3b and the second groove 3d, the water spray assembly is clamped between the scraper arm 3a, the support plate 3c and the pressure block 3e.

[0028] In the present invention, the water spray assembly is clamped between the scraper arm 3a, the support plate 3c and the pressing block 3e, and the water spray assembly is fixed on the scraper arm. When the scraper arm is working, the water spray assembly moves with the scraper arm, thereby avoiding relative movement between the scraper arm and the water spray assembly, and further avoiding water leakage caused by the water spray assembly being cut.

[0029] The scraper arm 3a comprises a scraper arm body 3a1, one end of the scraper arm body 3a1 is bent to form a curved section 3a2, and a support plate 3c is provided on the second side wall of the scraper arm body 3a1 and the curved section 3a2. When assembling the water spray assembly, the water spray assembly is pressed into the second groove 3d located at the scraper arm body 3a1 and the curved section 3a2, and the water spray assembly is pressed by the pressing block 3e in the second groove 3d, and is not easy to fall off, and is prevented from relative movement with the scraper arm, so as to avoid cutting the water spray pipe and causing water leakage.

[0030] The support plate 3c includes a first support portion 3c1, one end of the first support portion 3c1 is fixed to the second side wall of the scraper arm 3a, the first support portion 3c1 is bent to form a second support portion 3c2, and the second groove 3d is formed between the first support portion 3c1, the second support portion 3c2 and the scraper arm 3a. In this embodiment, the first support portion 3c1, the second support portion 3c2 and the scraper arm 3a are integrally formed, for example, by injection molding.

[0031] One end of the pressing block 3e is fixed to the second supporting portion 3c2, and the pressing block 3e and the second supporting portion 3c2 are integrally formed by injection molding. The other end of the pressing block 3e faces the second side wall of the scraper arm 3a, and a clearance opening 3f for the water spray assembly to be inserted into the second groove 3d is provided between the other end of the pressing block 3e and the second side wall of the scraper arm 3a. The pressing block 3e is used to press the water spray assembly to prevent the water spray assembly from withdrawing from the second groove 3d.

[0032] The water spray assembly includes a main pipe 5, a three-way connector 6, an intermediate pipe 7, a protective sleeve 8, a branch pipe 9, and a nozzle 10. The main pipe 5 is connected to the three-way connector 6, and one end of the intermediate pipe 7 is connected to the three-way connector 6. There are two intermediate pipes 7, so the two output ends of the three-way connector 6 are respectively connected to the two intermediate pipes 7. The protective sleeve 8 is hollowly sleeved on the main pipe 5 and / or the intermediate pipe 7. In this embodiment, the main pipe 5 and the intermediate pipe 7 are both sleeved with a protective sleeve 8. The protective sleeve 8 preferably adopts a corrugated pipe. When the main pipe 5 and the intermediate pipe 7 are bent under force, the protective sleeve 8 bears the bending force to prevent the main pipe 5 and the intermediate pipe 7 from being damaged.

[0033] One end of the branch pipe 9 is connected to the middle pipe 7. Since a turn is formed from the middle pipe 7 to the branch pipe 9, a pipe joint 9a is arranged between the middle pipe 7 and the branch pipe 9 in the present invention. The pipe joint 9a is L-shaped. One end of the pipe joint 9a is connected to the middle pipe 7, and the other end of the pipe joint 9a is connected to the branch pipe 9. Through the turn of the L-shaped pipe joint 9a, excessive bending of the branch pipe 9 or the middle pipe 7 is avoided, which is beneficial to ensure the life of the water spray component. The branch pipe 9 cooperates with the first groove 3b and the second groove 3d, and the nozzle 10 is connected to the other end of the branch pipe 9. The nozzle 10 is fixed on the scraper assembly 4.

[0034] The present invention also includes a pipe guide component for being hollowly sleeved on the main pipe 5 and / or the intermediate pipe 7, the pipe guide component includes a pipe sleeve 11, a plug 12 for plugging and matching with the vehicle body, and a spring buckle 13, one end of the plug 12 is fixed to the circumference of the pipe sleeve 11, a clearance hole is provided on the circumference of the plug 12, one end of the spring buckle 13 is located in the clearance hole and fixed to the plug 12, and the other end of the spring buckle 13 is located outside the clearance hole. Since the main pipe 5 and the intermediate pipe 7 are arranged horizontally along the windshield, after the plug 12 is plugged into the vehicle body, the pipe guide component supports the main pipe 5 and the intermediate pipe 7 to prevent the main pipe 5 and the intermediate pipe 7 from falling into the engine compartment of the automobile under gravity, thereby ensuring the service life of the water spray assembly.

[0035] The pipeline guide component also includes a baffle 14 for abutting against the vehicle body, and the baffle 14 is fixed to one end of the pipe sleeve 11 or the plug 12. When the plug 12 is plugged into the vehicle head, the baffle 14 abuts against the vehicle body, thereby increasing the stability of the connection between the pipeline guide component and the vehicle body.

[0036] The present invention further includes a first guide member for guiding the connecting rod mechanism 2, and the first guide member is slidably matched with the connecting rod mechanism 2. During the reciprocating motion of the connecting rod mechanism 2, the first guide member guides the connecting rod mechanism 2, so that the connecting rod mechanism 2 can be reciprocated stably, and the connecting rod mechanism 2 can be prevented from jumping, thereby making the scraper arm assembly 3 and the scraper brush assembly 4 stable during operation.

[0037] The first guide member includes a mounting component 15 and a guide rail 16. The mounting component 15 is used to be fixed to the vehicle body. After the mounting component 15 and the guide rail 16 are fixed, an angle is formed between the mounting component 15 and the guide rail 16. The angle is preferably 90°. The connecting rod mechanism 2 is slidably matched with the guide rail 16. A slide groove is provided on the connecting rod mechanism 2. A protrusion 16a for forming a track is provided on the guide rail 16. The protrusion 16a is slidably matched with the slide groove on the connecting rod mechanism 2. The guide rail 16 is placed on a mold with a groove, and a stamping force is applied to the guide rail 16 to form the protrusion 16a on the guide rail 16.

[0038] The side of the mounting member 15 is bent to form a first reinforcement portion 15a, and the mounting member 15 is punched to form a second reinforcement portion 15b on the mounting member 15. The strength of the mounting member 15 can be increased by the first reinforcement portion 15a and the second reinforcement portion 15b.

Claims

1. A windshield wiper system, comprising a reduction motor (1), a connecting rod mechanism (2), a wiper arm assembly (3), and a wiper assembly (4), wherein the reduction motor (1) is connected to the connecting rod mechanism (2), the wiper arm assembly (3) is connected to the connecting rod mechanism (2), the wiper assembly (4) is connected to the wiper arm assembly (3), the wiper arm assembly (3) comprises a wiper arm (3a) and a water spray assembly, characterized in that: The scraper arm (3a) is provided with a first groove (3b) on a first side wall facing the windshield, a support plate (3c) is provided on a second side wall of the scraper arm (3a), a second groove (3d) is formed between the support plate (3c) and the scraper arm (3a), a pressing block (3e) is provided on the support plate (3c), and after the water spray assembly cooperates with the first groove (3b) and the second groove (3d), the water spray assembly is clamped between the scraper arm (3a), the support plate (3c) and the pressing block (3e).

2. The windshield wiper system according to claim 1, characterized in that: The scraper arm (3a) comprises a scraper arm body (3a1), one end of the scraper arm body (3a1) is bent to form a bent section (3a2), and support plates (3c) are provided on the second side walls of the scraper arm body (3a1) and the bent section (3a2).

3. The windshield wiper system according to claim 1, characterized in that: The support plate (3c) comprises a first support portion (3c1), one end of the first support portion (3c1) is fixed to the second side wall of the scraper arm (3a), the first support portion (3c1) is bent to form a second support portion (3c2), and the second groove (3d) is formed between the first support portion (3c1), the second support portion (3c2) and the scraper arm (3a).

4. The windshield wiper system according to claim 3, characterized in that: One end of the pressing block (3e) is fixed to the second supporting portion (3c2), and the other end of the pressing block (3e) faces the second side wall of the scraper arm (3a). A clearance opening (3f) for the water spray assembly to be inserted into the second groove (3d) is provided between the other end of the pressing block (3e) and the second side wall of the scraper arm (3a).

5. The windshield wiper system according to any one of claims 1 to 4, characterized in that: The water spray assembly comprises a main pipe (5), a three-way connector (6), an intermediate pipe (7), a protective sleeve (8), a branch pipe (9), and a spray head (10). The main pipe (5) is connected to the three-way connector (6), one end of the intermediate pipe (7) is connected to the three-way connector (6), the protective sleeve (8) is hollowly sleeved on the main pipe (5) and / or the intermediate pipe (7), one end of the branch pipe (9) is connected to the intermediate pipe (7), the branch pipe (9) is matched with the first groove (3b) and the second groove (3d), and the spray head (10) is connected to the other end of the branch pipe (9).

6. The windshield wiper system according to claim 5, characterized in that: The invention also comprises a pipe guide component for being hollowly sleeved on the main pipe (5) and / or the intermediate pipe (7), the pipe guide component comprising a pipe sleeve (11), a plug (12) for plugging and matching with the vehicle body, and a spring buckle (13), one end of the plug (12) being fixed to the peripheral surface of the pipe sleeve (11), a clearance hole being provided on the peripheral surface of the plug (12), one end of the spring buckle (13) being located in the clearance hole and being fixed to the plug (12), and the other end of the spring buckle (13) being located outside the clearance hole.

7. The windshield wiper system according to claim 6, characterized in that: The pipeline guide component also includes a baffle (14) for abutting against the vehicle body, and the baffle (14) is fixed to one end of the pipe sleeve (11) or the plug (12).

8. The windshield wiper system according to claim 1, characterized in that: It also comprises a first guide member for guiding the connecting rod mechanism (2), and the first guide member is in sliding cooperation with the connecting rod mechanism (2).

9. The windshield wiper system according to claim 8, characterized in that: The first guide member comprises a mounting component (15) and a guide rail (16); after the mounting component (15) and the guide rail (16) are fixed, an angle is formed between the mounting component (15) and the guide rail (16), and the connecting rod mechanism (2) and the guide rail (16) are slidably matched.

10. The windshield wiper system according to claim 9, characterized in that: The side portion of the installation component (15) is bent to form a first reinforcement portion (15a), and the installation component (15) is punched to form a second reinforcement portion (15b) on the installation component (15).

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