Low-temperature wiper assembly for commercial vehicle

Abstract

The utility model discloses a low-temperature wiper assembly for a commercial vehicle, which comprises a motor and connecting rod assembly, a wiper arm assembly and a wiper blade assembly, the motor and connecting rod assembly comprises a motor assembly, a motor mounting bolt, a motor support, a crank assembly, a ball bearing, a ball bowl, a connecting rod, a water pipe fixing clamp, a water pipe, an output shaft swing arm, a motor connecting rod assembly mounting bolt, a scraping arm locking nut, a ball bowl, a crank locking nut and a fixing rod. One end of the crank assembly is fixedly connected with a spline on a motor output shaft through a crank locking nut, the crank assembly is connected with a connecting rod through a ball bearing and a ball bowl, and the connecting rod is connected with an output shaft swing arm through the ball bowl; one ends of the two wiper arm assemblies are respectively hinged with two ends of an output shaft swing arm of the motor and connecting rod assembly, and the other ends of the wiper arm assemblies are connected with the wiper blade assembly. According to the wiper assembly, the performance of a connecting structure, a connecting piece and the like of the wiper assembly is optimized, the low-temperature tolerance of a wiper product is improved, and the driving safety is effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of low temperature wiper assembly for commercial vehicle, belong to the technical field of vehicle body washing. BACKGROUND

[0002] With the application scene expansion of commercial vehicle product, the requirement of product resistance is higher and higher, part of area user requires vehicle to be normally used in-40 ℃ environment. Ordinary wiper assembly uses temperature range is-20 ℃~80 ℃, cannot satisfy long-term use requirement in extremely cold region at low temperature. At present, the connection of motor output shaft and crank of ordinary wiper generally adopts bevel gear connection, is tightened with nut after fastening glue, there is the risk of loosening. In addition, ordinary wiper cannot reach-40 ℃ at low temperature. Therefore, it is urgent to improve the low temperature resistance of wiper product, effectively improve driving safety. SUMMARY

[0003] The utility model solves the technical problems in view of the defects of prior art, and provides a kind of low temperature wiper assembly for commercial vehicle that can be used in extremely cold region for a long time.

[0004] To solve this technical problem, the utility model provides a kind of low temperature wiper assembly for commercial vehicle, including motor and connecting rod assembly, wiper arm assembly and wiper blade assembly, the motor and connecting rod assembly includes motor assembly, motor mounting bolt, motor support, crank assembly, ball bearing and ball bowl, connecting rod, water pipe fixing clamp, water pipe, output shaft swing arm, motor connecting rod assembly mounting bolt, wiper arm locking nut, ball bowl, crank locking nut, fixed rod, the crank assembly one end is fixedly connected with the spline on the motor output shaft through the crank locking nut, the crank assembly is connected with the connecting rod through ball bearing and ball bowl, the connecting rod is connected with the output shaft swing arm through ball bowl, to drive wiper arm assembly and wiper blade assembly reciprocating motion;The one end of two wiper arm assemblies is respectively hinged with the both ends of the output shaft swing arm of motor and connecting rod assembly, and the other end of wiper arm assembly is connected with wiper blade assembly;Motor assembly drives crank assembly, and crank assembly drives connecting rod, and connecting rod drives wiper arm assembly to further drive wiper blade assembly to adhere to glass swing, to realize wiping.

[0005] The spline outer tooth is equipped on the motor assembly output shaft, and the spline inner tooth is equipped on the crank assembly, and the motor assembly output shaft is connected with the crank assembly as straight tooth.

[0006] The two output shaft swing arms of the motor and connecting rod assembly are connected through water pipe, and the water pipe is fixed on the fixed rod through water pipe fixing clamp.

[0007] The crank assembly is connected with the output shaft swing arm through two connecting rods.

[0008] The motor support of the motor and connecting rod assembly is welded with the fixed rod.

[0009] The fixed rod of the motor and connecting rod assembly is riveted to the output shaft swing arm.

[0010] The wiper arm assembly comprises a wiper arm decorative cover, a wiper arm connecting piece, a wiper arm tension spring and a wiper arm hook, the wiper arm connecting piece is connected to the wiper arm hook by using a pin shaft and is pulled tight by the wiper arm tension spring, the wiper arm decorative cover is clamped to the shaft hole of the wiper arm connecting piece, and the wiper arm locking nut and the wiper arm connecting piece are decorated.

[0011] The wiper arm connecting piece on the wiper arm assembly is connected to the output shaft swing arm bevel gear by a wiper arm locking nut.

[0012] The wiper blade assembly comprises an arcuate beam and a wiper blade, and the arcuate beam and the wiper blade are connected by using a pin shaft and are pulled tight by a tension spring.

[0013] The crank assembly, the ball bearing and the ball bowl, the connecting rod, the ball bowl and the output shaft swing arm are made of low-temperature-resistant materials.

[0014] Beneficial effects: the connecting structure design of the wiper assembly and the performance of grease and connecting pieces are optimized, the low-temperature resistance of the wiper product is improved, and the driving safety is effectively improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a structural schematic view of the utility model;

[0016] Figure 2 It is a structural schematic front view of the motor assembly of the utility model;

[0017] Figure 3 It is a structural schematic plan view of the motor assembly of the utility model;

[0018] Figure 4 It is a structural schematic view of the crank assembly of the utility model;

[0019] Figure 5 It is a meshing schematic view of the motor and the crank assembly of the utility model.

[0020] In the drawing: 1, motor and connecting rod assembly; 2, wiper arm assembly; 3, wiper blade assembly; 101, motor assembly; 102, motor mounting bolt; 103, motor support; 104, crank assembly; 105, ball bearing and ball bowl; 106, connecting rod; 107, water pipe fixing clamp; 108, water pipe; 109, output shaft swing arm; 110, motor connecting rod assembly mounting bolt; 111, wiper arm locking nut; 112, ball bowl; 113, crank locking nut; 114, fixed rod; 201, wiper arm decorative cover; 202, wiper arm connecting piece; 203, wiper arm tension spring; 204, wiper arm hook; 301, wiper blade; 302, arcuate beam. DETAILED DESCRIPTION

[0021] The utility model is specifically described below in combination with the drawings and examples.

[0022] As Figures 1-5 The utility model provides a kind of low temperature wiper assembly for commercial vehicle, including motor and connecting rod assembly 1, wiper arm assembly 2 and wiper blade assembly 3, the motor and connecting rod assembly 1 includes motor assembly 101, motor mounting bolt 102, motor support 103, crank assembly 104, ball bearing and ball bowl 105, connecting rod 106, water pipe fixing clamp 107, water pipe 108, output shaft swing arm 109, motor connecting rod assembly mounting bolt 110, wiper arm locking nut 111, ball bowl 112, crank locking nut 113, fixed rod 114, the crank assembly 104 one end is fixedly connected with the spline on motor output shaft by crank locking nut 113, and crank assembly 104 is connected with connecting rod 106 by ball bearing and ball bowl 105, and connecting rod 106 is connected with output shaft swing arm 109 by ball bowl 112, to drive wiper arm assembly 2 and wiper blade assembly 3 reciprocating motion;Two wiper arm assembly 2 one end is hingedly connected with the both ends of output shaft swing arm 109 of motor and connecting rod assembly 1, and the other end of wiper arm assembly 2 is connected wiper blade assembly 3;Motor assembly 101 drives crank assembly 104, and crank assembly 104 drives connecting rod 106, and connecting rod 106 drives wiper arm assembly 2 and then drives wiper blade assembly 3 to adhere glass swing, realizes wiping.

[0023] The spline outer tooth is equipped on the output shaft of motor assembly 101, and spline inner tooth is equipped on crank assembly 104, and motor assembly 101 output shaft is directly connected with crank assembly 104.

[0024] The water pipe 108 is fixed on fixed rod 114 by water pipe fixing clamp 107 between the two output shaft swing arms 109 of motor and connecting rod assembly 1.

[0025] The crank assembly 104 is connected with output shaft swing arm 109 by two connecting rods 106.

[0026] The motor support 103 of motor and connecting rod assembly 1 is welded with fixed rod 114.

[0027] The fixed rod 114 of motor and connecting rod assembly 1 is riveted with output shaft swing arm 109.

[0028] The wiper arm assembly 2 includes wiper arm decorative cover 201, wiper arm connecting piece 202, wiper arm tension spring 203 and wiper arm hook 204, and wiper arm connecting piece 202 is connected with wiper arm hook 204 using pin shaft and is pulled tight by wiper arm tension spring 203;Wiper arm decorative cover 201 is clamped with the shaft hole of wiper arm connecting piece 202, and wiper arm locking nut 111 and wiper arm connecting piece 202 are decorated.

[0029] The wiper arm connecting piece 202 on the wiper arm assembly 2 is connected with the output shaft swing arm 109 through a wiper arm locking nut 111 and a bevel gear.

[0030] The wiper blade assembly 3 includes an arcuate beam 302 and a wiper blade 301, which are connected through a pin shaft and are pulled tight by a tension spring.

[0031] The grease used in the crank assembly 104, the ball bearing and ball bowl 105, the connecting rod 106, the ball bowl 112, the output shaft swing arm 109 and the wiper assembly is made of a low-temperature resistant material (such as "EPDM", "C901 white grease" and the like).

[0032] The utility model discloses a connecting structure and the performance of grease, connecting piece and the like in the material of wiper assembly are optimized, the use temperature of ordinary wiper assembly cannot satisfy the use requirement of long-term use in the extremely cold area, the low-temperature resistance of wiper product is improved, and the driving safety is effectively improved.

[0033] The above-mentioned embodiments of the utility model are only used for illustration, and are not the only ones. All changes within the scope of the utility model or within the scope equivalent to the utility model are covered by the utility model.

Claims

1. A low temperature wiper assembly for a commercial vehicle, characterized by: The motor and connecting rod assembly (1) includes a motor assembly (101), a motor mounting bolt (102), a motor support (103), a crank assembly (104), a ball bearing and ball bowl (105), a connecting rod (106), a water pipe fixing clamp (107), a water pipe (108), an output shaft swing arm (109), a motor connecting rod assembly mounting bolt (110), a wiper arm locking nut (111), a ball bowl (112), a crank locking nut (113), a fixed rod (114), one end of the crank assembly (104) is fixedly connected with the spline on the motor output shaft through the crank locking nut (113), the crank assembly (104) is connected with the connecting rod (106) through the ball bearing and ball bowl (105), the connecting rod (106) is connected with the output shaft swing arm (109) through the ball bowl (112), so as to drive the wiper arm assembly (2) and the wiper blade assembly (3) to reciprocate.

2. The low temperature wiper assembly for a commercial vehicle of claim 1, characterized by: The motor assembly (101) is provided with spline outer teeth on the output shaft, and the crank assembly (104) is provided with spline inner teeth.

3. The low temperature wiper assembly for a commercial vehicle of claim 1, characterized in that: The two output shaft swing arms (109) of the motor and connecting rod assembly (1) are connected through the water pipe (108), and the water pipe (108) is fixed on the fixed rod (114) through the water pipe fixing clamp (107).

4. The low temperature wiper assembly for a commercial vehicle of claim 1, characterized in that: The crank assembly (104) is connected with the output shaft swing arm (109) through two connecting rods (106).

5. The low temperature wiper assembly for a commercial vehicle of claim 1, characterized in that: The motor support (103) of the motor and connecting rod assembly (1) is welded with the fixed rod (114).

6. The low temperature wiper assembly for a commercial vehicle of claim 1, characterized in that: The fixed rod (114) of the motor and connecting rod assembly (1) is riveted with the output shaft swing arm (109).

7. The low temperature wiper assembly for a commercial vehicle of claim 1, characterized in that: The wiper arm assembly (2) includes a wiper arm decorative cover (201), a wiper arm connecting piece (202), a wiper arm tension spring (203) and a wiper arm hook (204), the wiper arm connecting piece (202) is connected with the wiper arm hook (204) by using a pin shaft and is tensioned by the wiper arm tension spring (203); the wiper arm decorative cover (201) is clamped with the shaft hole of the wiper arm connecting piece (202), and the wiper arm locking nut (111) and the wiper arm connecting piece (202) are decorated.

8. The low temperature wiper assembly for a commercial vehicle of claim 7, characterized in that: The wiper arm connecting piece (202) on the wiper arm assembly (2) is connected with the output shaft swing arm (109) by using a bevel gear through the wiper arm locking nut (111).

9. The low temperature wiper assembly for a commercial vehicle of claim 1, characterized in that: The wiper blade assembly (3) includes an arcuate beam (302) and a wiper blade (301), which are connected by using a pin shaft and are tensioned by a tension spring.

10. The low-temperature wiper assembly for a commercial vehicle of any of claims 1-9, characterized in that: The crank assembly (104), the ball bearing and ball bowl (105), the connecting rod (106), the ball bowl (112) and the output shaft swing arm (109) are made of low-temperature-resistant material.

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