Sealing element for water spraying motor of automobile

Abstract

The utility model provides an automobile water spraying motor sealing element, which relates to the technical field of motor sealing and comprises a sealing assembly, the sealing assembly comprises a connecting cylinder, a sealing ring and a flow guide sealing piece which are integrally formed, and a plurality of flow guide grooves which are circumferentially distributed are formed in the lower side of the flow guide sealing piece. A ring shaft lip is arranged on the side, facing the motor rotating shaft, of the flow guide groove, the ring shaft lip is made of an elastic rubber material, the rear end of the ring shaft lip and the flow guide sealing piece are integrally formed, the extending direction of the ring shaft lip is opposite to the rotating direction of the motor rotating shaft, and the front end of the ring shaft lip is arranged to be a triangle with the thickness gradually increased. The outer side of the annular shaft lip abuts against and is attached to the outer wall of the motor rotating shaft, and the inner wall of the annular shaft lip is arranged to be in a flow guide arc shape. A water film on the surface of the motor rotating shaft is stripped through the annular shaft lip, and water is prevented from entering the motor from a gap between the motor rotating shaft and the connecting cylinder as much as possible.

Description

Technical Field

[0001] The utility model relates to the technical field of motor sealing, in particular to a sealing component for a water spraying motor of an automobile. Background Art

[0002] The car water spray motor is mainly used to cooperate with the wiper action to clean the car glass. The car water spray motor has a simple structure. The water spray motor mainly includes a shell, a motor, and blades. The motor drives the blades to rotate. The blades are arranged at the head position of the shell. A liquid outlet pipe is arranged on the side of the shell. The outside of the water outlet pipe is connected to the pipeline. The glass water is passed from the water outlet pipe into the pipeline through the rotation of the blades, and then the water is sprayed through the nozzle. The motor and the glass water are sealed and separated by a seal inside the shell. The existing seals are usually sealed by a rubber material that is tightly matched with the motor shaft. However, the rotation of the motor shaft will cause wear of the seal, resulting in a reduction in the sealing effect. The glass water will enter the click from between the motor shaft and the seal to corrode the inside of the click and damage the motor circuit. Utility Model Content

[0003] 1. Technical issues to be resolved

[0004] In view of the deficiencies in the prior art, the utility model provides a sealing component for an automobile water spray motor, which solves the problems raised in the above-mentioned background technology.

[0005] (II) Technical solution

[0006] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] A seal for an automobile water spray motor comprises a shell, a motor shaft and a sealing assembly, wherein the sealing assembly is connected between the shell and the motor shaft, and comprises an integrally formed connecting tube, a sealing ring and a flow guide sealing sheet, wherein the sealing ring and the flow guide sealing sheet are respectively arranged at two ends of the connecting tube, and a plurality of circumferentially distributed flow guide grooves are opened on the lower side of the flow guide sealing sheet, and a ring shaft lip is arranged on the side of the flow guide groove facing the motor shaft, and the rear end of the ring shaft lip is integrally formed with the flow guide sealing sheet, and the extension direction of the ring shaft lip is opposite to the rotation direction of the motor shaft, and the outer side of the ring shaft lip abuts against and is attached to the outer wall of the motor shaft, and the inner wall of the ring shaft lip is arranged in a flow guide arc shape, and the inner wall of the ring shaft lip is flush with the plane where the inner wall of the flow guide groove is located.

[0008] Preferably, a positioning ring is connected to the guide sealing plate, a deformation groove is opened at the rear end of the ring shaft lip, a support block is arranged at the position of the positioning ring corresponding to the deformation groove, the support block is inserted in the deformation groove, and the diameter of the support block is larger than the inner diameter of the deformation groove.

[0009] Preferably, the inner wall of the deformation groove is configured as a frustum of which the inner diameter gradually decreases from top to bottom, and an adjusting screw is rotatably connected to the positioning ring, and the adjusting screw is threadedly connected to the guide sealing sheet.

[0010] Preferably, a sealing lip is provided on the inner wall of the connecting cylinder, and the sealing lip is interference fit with the motor shaft.

[0011] Preferably, the annular shaft lip is made of elastic rubber material.

[0012] (III) Beneficial effects

[0013] The utility model provides a sealing component for a water spray motor of an automobile, which has the following beneficial effects:

[0014] 1. In the utility model, the annular shaft lip on the guide sealing sheet is closely attached to the motor shaft, and the water film attached to the surface of the rotating motor shaft is peeled off. The centrifugal force brought by the motor shaft causes the water peeled off by the annular shaft lip to be thrown out of the guide groove along the inner wall of the annular shaft lip, and the water on the surface of the motor shaft is peeled off, thereby reducing the possibility of water entering the motor from the gap between the motor shaft and the connecting tube to cause corrosion damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural schematic diagram of a sealing member for a water spray motor for an automobile according to the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the flow guide sealing sheet in the utility model;

[0017] Figure 3 This is a schematic diagram of the assembly structure of the guide seal sheet and the motor shaft of the present invention.

[0018] In the figure: 1. Shell; 2. Motor shaft; 3. Connecting tube; 4. Sealing ring; 5. Guide sealing plate; 6. Guide groove; 7. Ring shaft lip; 8. Deformation groove; 9. Support block; 10. Adjusting screw; 11. Positioning ring. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0020] The utility model embodiment provides a sealing component for a water spray motor of an automobile.

[0021] like Figure 1-3As shown, it includes a shell 1, a motor shaft 2 and a sealing component, the sealing component is connected between the shell 1 and the motor shaft 2, the sealing component includes an integrally formed connecting tube 3, a sealing ring 4 and a guide sealing sheet 5, the inner wall of the connecting tube 3 is provided with a sealing lip, the sealing lip is interference fit with the motor shaft 2, the sealing ring 4 and the guide sealing sheet 5 are respectively arranged at both ends of the connecting tube 3, a plurality of circumferentially distributed guide grooves 6 are opened on the lower side of the guide sealing sheet 5, the guide groove 6 is provided with a ring shaft lip 7 on the side facing the motor shaft 2, the ring shaft lip 7 is set to an elastic rubber material, the rear end of the ring shaft lip 7 is integrally formed with the guide sealing sheet 5, the extension direction of the ring shaft lip 7 is opposite to the rotation direction of the motor shaft 2, the front end of the ring shaft lip 7 is set to a triangle with gradually increasing thickness, and the ring shaft lip 7 The outer side of the ring shaft lip 7 is in contact with and on the outer wall of the motor shaft 2, the inner wall of the ring shaft lip 7 is set to a guide arc shape, and a lip tail piece is set at the rear end of the ring shaft lip 7. The inner wall of the lip tail piece is flush with the inner wall of the guide groove 6, and a displacement gap is set between the lip tail piece and the inner wall of the guide groove 6. A positioning ring 11 is connected to the guide sealing sheet 5, and a deformation groove 8 is opened at the rear end of the ring shaft lip 7. The inner wall of the deformation groove 8 is set to a frustum whose inner diameter gradually decreases from top to bottom, and the deformation groove 8 is connected with the displacement gap. A support block 9 is set at the position of the positioning ring 11 corresponding to the deformation groove 8. The support block 9 is inserted in the deformation groove 8, and the diameter of the support block 9 is larger than the inner diameter of the deformation groove 8. An adjusting screw 10 is rotatably connected to the positioning ring 11, and the adjusting screw 10 is threadedly connected to the guide sealing sheet 5.

[0022] Working principle:

[0023] In the utility model, the motor shaft 2 is penetrated in the sealing assembly, the sealing cylinder is penetrated on the shell 1, the sealing ring 4 and the guide sealing sheet 5 are respectively against the two sides of the shell 1, and the adjusting screw 10 can be rotated to extrude the support block 9 connected to the deformation groove 8, and the deformation groove 8 is expanded, so that the ring shaft lip 7 is moved inward as a whole to the outside to abut against the outer wall of the motor shaft 2, and the triangular ring shaft lip 7 can scrape and peel off the water film formed on the surface of the shaft 2 when the shaft 2 rotates, which can minimize the water retained on the surface of the motor shaft 2 and reduce the possibility of water entering the motor from the gap between the motor shaft 2 and the connecting cylinder 3 to corrode and damage the motor. In addition, the adjusting screw 10 can be rotated regularly to push the support block 9 so that the ring shaft lip 7 is deformed outward to offset the wear of the motor shaft 2 on the ring shaft lip 7, thereby ensuring the effect of scraping and peeling off the water film and ensuring the sealing effect of the sealing assembly.

[0024] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A seal for a water spray motor of an automobile, comprising a housing, a motor shaft and a sealing assembly, wherein the sealing assembly is connected between the housing and the motor shaft, and is characterized in that: The sealing assembly includes an integrally formed connecting tube, a sealing ring and a guide sealing sheet, wherein the sealing ring and the guide sealing sheet are respectively arranged at the two ends of the connecting tube, and a plurality of circumferentially distributed guide grooves are opened on the lower side of the guide sealing sheet, and a ring shaft lip is arranged on the side of the guide groove facing the motor shaft, and the rear end of the ring shaft lip is integrally formed with the guide sealing sheet, and the extension direction of the ring shaft lip is opposite to the rotation direction of the motor shaft, and the outer side of the ring shaft lip abuts against and is attached to the outer wall of the motor shaft, and the inner wall of the ring shaft lip is arranged as a guide arc, and the inner wall of the ring shaft lip is flush with the plane where the inner wall of the guide groove is located.

2. The automobile water spray motor seal according to claim 1, characterized in that: The guide sealing sheet is connected with a positioning ring, the rear end of the ring shaft lip is provided with a deformation groove, the positioning ring is provided with a support block at the position corresponding to the deformation groove, the support block is inserted in the deformation groove, and the diameter of the support block is larger than the inner diameter of the deformation groove.

3. The automobile water spray motor seal according to claim 2, characterized in that: The inner wall of the deformation groove is configured as a frustum of which the inner diameter gradually decreases from top to bottom. An adjusting screw is rotatably connected to the positioning ring, and the adjusting screw is threadedly connected to the guide sealing sheet.

4. The automobile water spray motor seal according to claim 1, characterized in that: A sealing lip is provided on the inner wall of the connecting cylinder, and the sealing lip is interference fit with the motor shaft.

5. The automobile water spray motor seal according to claim 1, characterized in that: The annular shaft lip is configured to be made of elastic rubber material.

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