Overhead windscreen wiper connecting rod assembly for double-deck vehicle

Abstract

The overhead windscreen wiper connecting rod assembly comprises a windscreen wiper motor, a crank, a connecting rod mechanism and a windscreen wiper shaft, a driving plate is installed on the windscreen wiper shaft, the crank is installed on a driving shaft of the windscreen wiper motor, the connecting rod mechanism comprises a connecting rod, one end of the connecting rod is hinged to the crank, and the other end of the connecting rod drives the windscreen wiper shaft. The connecting rod mechanism further comprises a first swing arm and a second swing arm, the first swing arm and the second swing arm each comprise a long arm plate and a short arm plate which are sequentially connected, the long arm plates and the short arm plates are arranged in an obtuse angle mode, and the end of the long arm plate of the first swing arm and the end of the long arm plate of the second swing arm are hinged to the connecting rod. The short arm plate end of the first swing arm and the short arm plate end of the second swing arm are hinged to the two ends of the driving plate respectively, and the hinged end, hinged to the connecting rod, of the first swing arm is located between the hinged end, hinged to the connecting rod, of the second swing arm and the hinged end, hinged to the crank, of the connecting rod. Due to the design of the double swing arms, the wiper can perform wiping movement in a larger range.

Description

Technical Field

[0001] The utility model relates to a windshield wiper device on a vehicle, in particular to a windshield wiper connecting rod assembly. Background Art

[0002] Double-decker cars can effectively ease traffic pressure. The connecting rod mechanism structure design of the wiper mounted on the top of the existing double-decker cars is unreasonable, resulting in insufficient swing angle of the wiper, which makes the removal of rainwater on the top side unsatisfactory. Summary of the invention

[0003] Purpose of the utility model invention: To overcome the defects of the prior art, the utility model provides a double-layer vehicle top wiper connecting rod assembly with a double swing arm design, so that the connecting rod output shaft can achieve a reciprocating motion trajectory of more than 100 degrees, thereby driving the vehicle wiper to have a wider range of wiping motion.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A double-layer vehicle top-mounted wiper connecting rod assembly, comprising a wiper motor, a crank, a connecting rod mechanism and a wiper shaft, a drive plate is installed on the wiper shaft, the crank is installed on the drive shaft of the wiper motor, the connecting rod mechanism comprises a connecting rod, one end of the connecting rod is hinged on the crank, and the other end of the connecting rod drives the wiper shaft, characterized in that: the connecting rod mechanism also includes a first swing arm and a second swing arm, the first swing arm and the second swing arm both include a long arm plate and a short arm plate connected in sequence, the long arm plate and the short arm plate are arranged at an obtuse angle, the long arm plate end of the first swing arm and the long arm plate end of the second swing arm are both hinged on the connecting rod, the short arm plate end of the first swing arm and the short arm plate end of the second swing arm are respectively hinged to the two ends of the drive plate, and the hinged end of the first swing arm hinged to the connecting rod is located between the hinged end of the second swing arm hinged to the connecting rod and the hinged end of the connecting rod hinged to the crank.

[0006] By adopting the above technical solution, the motor output shaft drives the connecting rod mechanism with a double swing arm design through the crank, so that the wiper shaft can achieve a reciprocating motion trajectory of more than 100 degrees, thereby driving the vehicle wiper to have a wider range of wiping movement.

[0007] Preferably, the hinge ends of the first swing arm and the second swing arm are both installed with hinge shaft assemblies, the hinge shaft assemblies include shaft seats, the shaft seats have intermediate linkage sleeves, axial limit end plates are provided at both ends of the intermediate linkage sleeves, the outer circumferential surface of the intermediate linkage sleeves is in the shape of a spline shaft, the hinge ends of the first swing arm and the second swing arm are both provided with spline holes, the spline shaft-shaped outer shaft surface of the intermediate linkage sleeves is inserted into the spline holes to achieve linkage, the intermediate linkage sleeves are inserted with hinge shafts, and the hinge shafts are connected to the connecting rods. In this structural design, the shaft seats are provided on the first swing arm and the second swing arm, so that the hinge shafts are installed more reliably and the transmission is more stable and reliable.

[0008] Preferably, the connecting rod includes a front section and a rear section, the front section includes a main arm plate with a U-shaped cross-section, one end of the main arm plate is provided at a hinged ear hinged to the crank, the other end of the main arm plate has an insertion port, one end of the rear section is inserted into the groove of the main arm plate along the insertion port, a connecting bolt hole is provided on the rear section, a strip connecting hole is provided on the main arm plate, the connecting bolt hole on the rear section corresponds to the strip connecting hole on the front section and is fixedly connected by bolts and nuts. Under this structural design, the connecting rod adopts a two-section design, and the connecting rod length is finely adjusted through the strip connecting hole and the bolt connecting hole, which reduces the processing accuracy requirements and is convenient for processing and installation; under the structural design of the front section, the convenience of positioning and installation of the front section and the rear section and the reliability after connection are guaranteed.

[0009] The utility model is further described below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 The structure of the utility model double-layer vehicle top wiper connecting rod assembly Figure 1 ;

[0011] Figure 2 The structure of the utility model double-layer vehicle top wiper connecting rod assembly Figure 2 ;

[0012] Figure 3 It is an exploded view of the first swing arm or the second swing arm of the utility model. DETAILED DESCRIPTION

[0013] See attached Figures 1 to 3 The utility model discloses a double-layer vehicle top-mounted wiper connecting rod assembly, including a wiper motor 1, a crank 2, a connecting rod mechanism and a wiper shaft 3, a driving plate 31 is installed on the wiper shaft 3, the crank 2 is installed on the driving shaft of the wiper motor 1, the connecting rod mechanism includes a connecting rod 4, one end of the connecting rod 4 is hinged on the crank 2, and the other end of the connecting rod 4 drives the wiper shaft 3, the connecting rod mechanism also includes a first swing arm 5 and a second swing arm 6, the first swing arm 5 and the second swing arm 6 both include a long arm plate 51, which are connected in sequence. 61 and short arms 52, 62, long arm plates 51, 61 and short arm plates 52, 62 are arranged at an obtuse angle, the end of the long arm plate 51 of the first swing arm 5 and the end of the long arm plate 61 of the second swing arm 6 are both hinged to the connecting rod 4, the end of the short arm plate 52 of the first swing arm 5 and the end of the short arm plate 62 of the second swing arm 6 are respectively hinged to the two ends of the driving plate 31, and the hinged end of the first swing arm 5 hinged to the connecting rod 4 is located between the hinged end of the second swing arm 6 hinged to the connecting rod 4 and the hinged end of the connecting rod 4 and the crank 2. The output shaft of the wiper motor drives the connecting rod mechanism of the double swing arm design through the crank, so that the wiper shaft can achieve a reciprocating motion trajectory of more than 100 degrees, thereby driving the vehicle wiper to a wider range of wiping motion.

[0014] The hinged ends of the first swing arm 5 and the second swing arm 6 are both installed with hinge shaft assemblies A, which include shaft seats A1, which have intermediate linkage sleeves A11, and axial limit end plates A12 are provided at both ends of the intermediate linkage sleeves A11, and the outer circumferential surface of the intermediate linkage sleeves A11 is in the shape of a spline shaft, and the hinged ends of the first swing arm 5 and the second swing arm 6 are both provided with spline holes A10, and the spline shaft-shaped outer shaft surface of the intermediate linkage sleeves A11 is inserted into the spline holes A10 to achieve linkage, and the intermediate linkage sleeves A11 are inserted with hinge shafts A2, which are press-fitted into the intermediate linkage sleeves A11 by interference fit, and the hinge shafts A2 are connected to the connecting rod 4. The shaft seats are provided on the first swing arm and the second swing arm, so that the hinge shafts are installed more reliably and the transmission is more stable and reliable.

[0015] In order to facilitate processing and use, the following optimized design is adopted: the connecting rod 4 includes a front section 4-1 and a rear section 4-2, the front section 4-1 includes a main arm plate 4-11 with a U-shaped cross-section, one end of the main arm plate 4-11 is arranged at a hinged ear 4-12 hinged to the crank 2, and the other end of the main arm plate 4-11 has an insertion port, one end of the rear section 4-2 is inserted into the groove of the main arm plate 4-11 along the insertion port, a connecting bolt hole is arranged on the rear section 4-2, and a strip connecting hole 4-111 is arranged on the main arm plate 4-11, and the connecting bolt hole on the rear section 4-2 corresponds to the strip connecting hole 4-111 on the front section 4-1 and is fixedly connected by bolts and nuts. The connecting rod adopts a two-stage design, and the connecting rod length is finely adjusted through the strip connecting hole and the bolt connecting hole, which reduces the processing accuracy requirements and is convenient for processing and installation; under the structural design of the front section, the convenience of positioning and installation of the front section and the rear section and the reliability after connection are guaranteed.

Claims

1. A double-layer vehicle top-mounted wiper connecting rod assembly, comprising a wiper motor, a crank, a connecting rod mechanism and a wiper shaft, wherein a drive plate is mounted on the wiper shaft, the crank is mounted on the drive shaft of the wiper motor, the connecting rod mechanism comprises a connecting rod, one end of the connecting rod is hinged on the crank, and the other end of the connecting rod drives the wiper shaft, characterized in that: The connecting rod mechanism also includes a first swing arm and a second swing arm. The first swing arm and the second swing arm both include a long arm plate and a short arm plate connected in sequence. The long arm plate and the short arm plate are arranged at an obtuse angle. The long arm plate end of the first swing arm and the long arm plate end of the second swing arm are both hinged on the connecting rod. The short arm plate end of the first swing arm and the short arm plate end of the second swing arm are respectively hinged to two ends of the driving plate, and the hinged end of the first swing arm hinged to the connecting rod is located between the hinged end of the second swing arm hinged to the connecting rod and the hinged end of the connecting rod hinged to the crank.

2. The double-layer vehicle top-mounted wiper connecting rod assembly according to claim 1, characterized in that: The hinged ends of the first swing arm and the second swing arm are both equipped with hinge shaft assemblies, which include an axle seat, the axle seat has an intermediate linkage sleeve, axial limit end plates are provided at both ends of the intermediate linkage sleeve, the outer circumferential surface of the intermediate linkage sleeve is in the shape of a spline shaft, the hinged ends of the first swing arm and the second swing arm are both provided with spline holes, the spline shaft-shaped outer shaft surface of the intermediate linkage sleeve is inserted into the spline hole to realize linkage, an articulated shaft is inserted in the intermediate linkage sleeve, and the articulated shaft is connected to the connecting rod.

3. The double-layer vehicle top-mounted wiper connecting rod assembly according to claim 1, characterized in that: The connecting rod includes a front section and a rear section. The front section includes a main arm plate with a U-shaped cross-section. One end of the main arm plate is provided on a hinged ear hinged to the crank, and the other end of the main arm plate has an insertion port. One end of the rear section is inserted into the groove of the main arm plate along the insertion port. A connecting bolt hole is provided on the rear section, and a strip connecting hole is provided on the main arm plate. The connecting bolt holes on the rear section correspond to the strip connecting holes on the front section and are fixedly connected by bolts and nuts.

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