Rotary water spraying motor structure

Abstract

The utility model discloses a rotary water spraying motor structure which comprises a motor, a reduction gearbox, an output shaft, a water conveying pipe and a spraying rod. The output shaft is a hollow shaft, and the lower end of the output shaft is rotatably clamped on the reduction gearbox; the motor drives the output shaft to rotate in a reciprocating mode through a rotating mechanism arranged in the reduction gearbox. The spray rod comprises a spray head and a connecting pipe which are integrally formed, the spray head is fixedly mounted at the upper end of the output shaft, and the connecting pipe is inserted into an inner hole of the output shaft; the water conveying pipe is also inserted into the inner hole of the output shaft, the lower end of the water conveying pipe extends out of the output shaft and is fixed on the reduction gearbox, the connecting piece is made of POM materials, the connecting piece is provided with an inner hole, and the water conveying pipe and the connecting pipe are respectively inserted into the inner hole of the connecting piece to be communicated. The sealing device has the advantages of being good in sealing performance, low in cost and long in service life.

Description

Technical Field

[0001] This utility model relates to the technical field of automotive windshield wipers, and in particular to a rotating water spray motor structure. Background Technology

[0002] Car windshield wipers are devices used to remove raindrops and dust adhering to the windshield of a vehicle, improving the driver's visibility and increasing driving safety. When there is no rain on the windshield but cleaning it with wipers is still necessary, it is usually necessary to spray water on the windshield to reduce friction during wiping, reduce noise, and enhance cleaning effectiveness.

[0003] Currently, windshield wiper arms are driven by wiper motors to reciprocate. The washer fluid system is typically driven by a motor located at the bottom of the windshield. This motor rotates the blades via a motor shaft, causing liquid to flow from the outlet pipe into the mains, and then through the nozzle for spraying. The washer fluid system is independent of the wiper system, which increases the complexity of the car's interior layout.

[0004] To address this, Chinese invention patent application publication number CN116394883A discloses a windshield wiper motor, including a motor housing and a motor shaft disposed within the motor housing. A reduction gearbox is located at one end of the motor housing, and the reduction gearbox includes a gear mechanism driven by the motor shaft. An output shaft is located at the power output end of the gear mechanism, used to drive the windshield wiper arm to reciprocate. One end of the output shaft extends out of the housing of the reduction gearbox; this end is the outer extension end. The output shaft is a hollow shaft. A spray bar is provided on the outer extension end of the output shaft, including a nozzle and a connecting pipe. The nozzle is fixed to one end of the connecting pipe and is fixedly connected to the end of the outer extension end of the output shaft, allowing the nozzle to rotate synchronously with the output shaft. The connecting pipe of the spray bar is located within the shaft hole of the output shaft. A water supply pipe is inserted into the shaft hole of the output shaft from the other end and is sealed to the connecting pipe via a sealing ring, connecting the connecting pipe to the water supply pipe. This patent has the following problems:

[0005] 1. The other end of the connecting pipe is inserted into the water supply pipe and the connecting pipe and the water supply pipe are rotatably fitted, causing the sealing ring to dry grind, which affects the service life of the connecting pipe and the sealing ring.

[0006] 2. The water supply pipe is usually made of copper. Considering the overall size of the output shaft, the copper pipe is usually made longer, which increases the weight and cost of the wiper motor. Utility Model Content

[0007] The technical problem to be solved by this utility model is to provide a rotating water spray motor structure with long service life and low cost, which addresses the above-mentioned deficiencies of the wiper motor disclosed in the existing Chinese invention patent application publication number CN116394883A.

[0008] The technical problem to be solved by this utility model can be achieved through the following technical solution:

[0009] A rotating water spray motor structure includes a motor, a gearbox, an output shaft, a water supply pipe, and a spray bar. The output shaft is a hollow shaft, and its lower end is rotatably engaged with the gearbox. The motor drives the output shaft to reciprocate through a rotating mechanism located within the gearbox. The spray bar includes an integrally formed nozzle and a connecting pipe. The nozzle is fixedly mounted on the upper end of the output shaft, and the connecting pipe is inserted into the inner hole of the output shaft. The water supply pipe is also inserted into the inner hole of the output shaft, with its lower end extending out of the output shaft and fixed to the gearbox. The structure is characterized by further including a connector made of POM material, the connector having an inner hole, through which the water supply pipe and the connecting pipe are respectively inserted and communicate.

[0010] In a preferred embodiment of this utility model, a shaped sealing ring is provided between the connecting pipe and the inner hole of the connector.

[0011] In a preferred embodiment of this utility model, the irregularly shaped sealing ring has a double sealing ring.

[0012] In a preferred embodiment of this utility model, an oil storage groove is provided between the double sealing rings, and the oil storage groove is filled with lubricating grease to achieve oil lubrication between the irregular sealing ring, the connector and the connecting pipe.

[0013] In a preferred embodiment of this utility model, a transmission snap-fit ​​part is integrally injection molded at the lower end of the water supply pipe. The transmission snap-fit ​​part is snapped onto the gearbox. A recessed hole is provided in the transmission snap-fit ​​part. The lower end of the output shaft is inserted into the recessed hole with a clearance fit. The motor drives the output shaft to reciprocate through a rotating mechanism provided in the gearbox.

[0014] Due to the adoption of the above technical solution, this utility model has the advantages of good sealing performance, low cost and long service life. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the rotating water spray motor structure of this utility model.

[0016] Figure 2 This is a bottom view of the rotating water jet motor structure of this utility model.

[0017] Figure 3 This is a partial cross-sectional view of the rotating water jet motor structure of this utility model.

[0018] Figure 4 for Figure 3 Enlarged schematic diagram of point I.

[0019] Figure 5 for Figure 3 Enlarged schematic diagram at point II.

[0020] Figure 6 This is a schematic diagram of the irregular-shaped sealing ring of this utility model. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0022] See Figures 1 to 6 The rotating water spray motor structure shown in the figure includes a motor 10, a reduction gearbox 20, an output shaft 30, a water supply pipe 40, and a spray bar 50.

[0023] The output shaft 30 is a hollow shaft, and the water supply pipe 40 is a copper pipe. A transmission locking part 60 is integrally injection molded at the lower end of the water supply pipe 40. The transmission locking part 60 is rotatably locked onto the reduction gearbox 20. A recessed hole 61 is provided in the transmission locking part 60. The lower end of the output shaft 30 is inserted into the recessed hole 61 with a clearance fit. The motor 10 drives the output shaft to reciprocate through the rotation mechanism provided in the reduction gearbox 20.

[0024] The spray bar 50 includes an integrally formed nozzle 51 and a connecting pipe 52. The nozzle 51 is fixedly mounted on the upper end of the output shaft 30 and rotates with the output shaft 30. A water spray hole 51a is provided on the nozzle 51. The connecting pipe 52 is inserted into the inner hole 31 of the output shaft 30. The water supply pipe 40 is also inserted into the inner hole 31 of the output shaft 30, and the lower end of the water supply pipe 40 extends out of the output shaft 30 and is bent and fixed on the transmission snap-fit ​​part 60.

[0025] The feature of this utility model is that it also includes a connector 70 made of POM material. The connector 70 has an inner hole 71. The water supply pipe 40 and the connecting pipe 52 are respectively inserted into the inner hole 71 of the connector 70 and communicate with each other. The connector 70 made of POM material connects the water supply pipe 40 and the connecting pipe 52, which allows the water supply pipe 40 to be made shorter, thereby reducing the cost and weight of the rotating water spray motor structure.

[0026] In addition, a shaped sealing ring 80 is provided between the connecting pipe 52 and the inner hole 71 of the connector 70. The shaped sealing ring 80 has double sealing rings 81 and 82, which improves the sealing performance between the connecting pipe 52 and the inner hole 71 of the connector 70.

[0027] An oil storage groove 83 is provided between the double sealing rings 81 and 82. The oil storage groove 83 is filled with lubricating grease to achieve oil lubrication between the irregular sealing ring 80, the connector 70 and the connecting pipe 50, thereby further extending the service life of the irregular sealing ring 80.

Claims

1. A rotating water spray motor structure, comprising a motor, a gearbox, an output shaft, a water supply pipe, and a spray bar; the output shaft is a hollow shaft, the lower end of which is rotatably engaged with the gearbox; the motor drives the output shaft to reciprocate through a rotating mechanism within the gearbox; the spray bar comprises an integrally formed nozzle and a connecting pipe, the nozzle being fixedly mounted on the upper end of the output shaft, and the connecting pipe being inserted into the inner hole of the output shaft; the water supply pipe is also inserted into the inner hole of the output shaft, with its lower end extending out of the output shaft and fixed to the gearbox, characterized in that, It also includes a connector made of POM material, the connector having an inner hole, into which the water supply pipe and the connecting pipe are respectively inserted and connected.

2. The rotating water jet motor structure according to claim 1, characterized in that, A shaped sealing ring is provided between the connecting pipe and the inner hole of the connector.

3. The rotating water jet motor structure according to claim 2, characterized in that, The irregularly shaped sealing ring has two sealing rings.

4. The rotating water jet motor structure according to claim 3, characterized in that, An oil storage groove is provided between the two sealing rings, and the oil storage groove is filled with lubricating grease to achieve oil lubrication between the irregular sealing ring, the connector and the connecting pipe.

5. A rotating water jet motor structure according to any one of claims 1 to 4, characterized in that, A transmission locking part is integrally injection molded at the lower end of the water supply pipe. The transmission locking part is locked onto the gearbox. A recessed hole is provided in the transmission locking part. The lower end of the output shaft is inserted into the recessed hole with a clearance fit. The motor drives the output shaft to reciprocate through a rotating mechanism provided in the gearbox.

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