Top buckling type scraping arm lateral button connecting structure

Abstract

The utility model discloses a top buckle type wiper arm lateral button connecting structure, which comprises a wiper blade assembly and a wiper arm, the wiper blade assembly comprises a wiper blade, a fixed seat and a connecting piece, the connecting piece is connected with the wiper blade, the fixed seat is hinged on the connecting piece, and the wiper blade assembly is connected with the fixed seat. At least one button hole is formed in the top of one end, close to the fixed seat, of the wiping arm, at least one elastic tongue piece is arranged on the top of the fixed seat, the elastic tongue piece is meshed in the button hole, and the elastic tongue piece can rotate along a first shaft; the wiper blade is characterized in that the first shaft extends in the direction parallel to the length direction of the wiper blade. In the process that the wiper arm is forcibly pulled out, the button deforms towards the other side edge of the fixed seat and touches the other side edge of the fixed seat, so that the forcible pulling force of the wiper arm is counteracted, the wiper blade assembly is prevented from being separated from the wiper arm, and the reliability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of windshield wipers, in particular to a top-button type wiper arm lateral button connection structure. Background Art

[0002] US Pat. No. 9,738,261 B2 discloses a windshield wiper device, comprising an elastic elongated carrier element, and an elongated wiper blade of flexible material, which can be placed adjacent to the windshield to be wiped, the wiper blade comprising opposite longitudinal grooves on its longitudinal sides, grooves of spaced longitudinal strips of the carrier element, wherein the adjacent ends of the longitudinal strips are connected to each other by corresponding connecting members, the windshield wiper device comprising a connecting device for a swing arm, wherein the swing arm is pivotally connected to the connecting device near one end to rotate around a pivot and inserted into a joint part, wherein the joint part comprises at least one elastic tongue, which is engaged in a correspondingly shaped hole provided in the swing arm, and wherein the elastic tongue can rotate along an axis. An outward position to fix the wiper blade on the swing arm and an inward position to release the wiper blade from the swing arm, characterized in that when a force is applied to the wiper blade in a direction away from the swing arm, the elastic tongue is forced to the outward position under the influence of the moment. The reliability of this patent is still poor. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a top-button scraper arm lateral button connection structure with good reliability in view of the technical problem of poor reliability in the prior art, so as to solve the shortcomings of the prior art.

[0004] The technical problem to be solved by the utility model can be achieved through the following technical solutions:

[0005] A top-button scraper arm side button connection structure comprises a scraper blade assembly and a scraper arm, wherein the scraper blade assembly comprises a scraper blade, a fixing seat, and a connecting piece, wherein the connecting piece is connected to the scraper blade, and the fixing seat is hinged on the connecting piece, and at least one button hole is provided on the top of one end of the scraper arm adjacent to the fixing seat, and at least one elastic tongue is provided on the top of the fixing seat, wherein the elastic tongue is engaged in the button hole, and the elastic tongue can rotate along a first axis; characterized in that the first axis extends in a direction parallel to the length of the scraper blade.

[0006] In a preferred embodiment of the utility model, the elastic tongue is hinged on one end of an inclined piece through the first axis, and the other end of the inclined piece is hinged on a side wall of the fixing seat through a second axis.

[0007] In a preferred embodiment of the present invention, the second hinge also extends in a direction parallel to the length of the scraper blade.

[0008] In a preferred embodiment of the present invention, shaft holes are provided on a pair of side walls of the fixing seat, shafts are provided on a pair of side walls of the connecting member, and the shafts are hinged in the corresponding shaft holes.

[0009] In a preferred embodiment of the utility model, a limiting head is provided at one end of the fixing seat away from the elastic tongue piece, and the limiting head cooperates with the elastic tongue piece to limit the scraper arm on the fixing seat along a direction parallel to the length of the scraper blade.

[0010] In a preferred embodiment of the utility model, a notch is provided at the position where the elastic tongue is provided on the top of the fixing seat to allow the elastic tongue to deform; when the scraper arm is forcibly pulled out, the elastic tongue button deforms toward the notch in the direction of the rear wall on the side away from the limiting head, touches the rear wall, offsets the forced pulling force of the scraper arm, and prevents the scraper assembly from detaching from the scraper arm.

[0011] In a preferred embodiment of the utility model, a protrusion is provided on a pair of side walls of the fixed seat, and the protrusion contacts the inner surface of the two side walls of the scraper arm adjacent to one end of the fixed seat, so as to limit the scraper arm on the fixed seat along the direction perpendicular to the length of the scraper blade.

[0012] Due to the adoption of the above technical solution, the utility model arranges the first axis on which the elastic tongue and the inclined plate are hinged and the second axis on which the inclined plate and the side wall of the fixed seat are hinged to extend along a direction parallel to the length of the scraper blade, so that when the scraper arm is forcibly pulled out, the button is deformed toward the other side of the fixed seat and touches the other side of the fixed seat, thereby offsetting the forced pulling force of the scraper arm, preventing the scraper blade assembly from detaching from the scraper arm, and improving reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the scraper assembly of the utility model.

[0014] Figure 2 This is a schematic diagram of the assembly of the scraper arm and scraper blade assembly of the utility model.

[0015] Figure 3 This is one of the structural schematic diagrams of the fixing seat of the utility model.

[0016] Figure 4 This is the second schematic diagram of the fixing seat structure of the utility model.

[0017] Figure 5 It is a schematic diagram of the force of the utility model when the scraper arm is forcibly pulled out. DETAILED DESCRIPTION

[0018] The present invention is further described below in conjunction with the accompanying drawings and specific implementations.

[0019] See also Figures 1 to 5 A top-button scraper arm side button connection structure shown in the figure includes a scraper blade assembly and a scraper arm 10, and the scraper blade assembly includes a scraper blade 20, a fixing seat 30, and a connecting piece 40.

[0020] The connecting member 40 is connected to the scraper blade 20 , and axial holes 31a and 32a are provided on a pair of side walls 31 and 32 of the fixed seat 30 , and shafts 41a and 42a are provided on a pair of side walls of the connecting member 40 , and the shafts 41a and 42a are hinged in the corresponding axial holes 31a and 32a , so that the fixed seat 30 is hinged on the connecting member 40 .

[0021] At least one elastic tongue piece 34 is provided on the top 33 of the fixed seat 30. The elastic tongue piece 34 is hinged on one end of an inclined piece 36 through an axis 35 (the aforementioned second axis hinge). The other end of the inclined piece 36 is hinged on a side wall 31 of the fixed seat 30 through an axis 37 (the aforementioned first axis). The axis 35 and the axis 37 extend in a direction parallel to the length of the scraper 20.

[0022] A notch 38 is provided at the position where the elastic tongue piece 34 is provided on the top 33 of the fixing base 30 to allow the elastic tongue piece 34 to deform.

[0023] A limiting head 39 is provided at one end of the fixing seat 30 away from the elastic tongue piece 34 . The limiting head 39 cooperates with the elastic tongue piece 34 to limit the scraper arm 10 on the fixing seat 30 along a direction parallel to the length of the scraper blade 20 .

[0024] The pair of side walls 31 and 32 of the fixing seat 30 are both provided with protrusions 31 b and 32 b.

[0025] At least one button hole 11aa is provided on the top 11a of the joint 11 at one end of the scraper arm 10 adjacent to the fixing seat 30. The shape of the button hole 11aa is adapted to the shape of the elastic tongue piece 34.

[0026] During assembly, the joint 11 of the scraper arm 10 is inserted into the fixing seat 30 in the direction of the limiting head 39. After being inserted into place, the elastic tongue 34 rotates along the axis 35 and engages in the button hole 11aa. The protrusions 31b and 32b contact the inner surfaces of the two side walls 12 and 13 of the joint 11, so as to limit the scraper arm 10 on the fixing seat 30 along the length direction perpendicular to the scraper blade 20.

[0027] See especially Figure 5 , in the scraper arm 10 according to Figure 5During the process of forced pulling out of the middle arrow A, the elastic tongue 34 button is deformed toward the rear wall 38a on the side of the notch 38 away from the limiting head 39, touching the rear wall 38a, offsetting the forced pulling force of the scraper arm 10, preventing the scraper blade assembly from detaching from the scraper arm 10, and improving reliability.

Claims

1. A top-button scraper arm side button connection structure, comprising a scraper blade assembly and a scraper arm, wherein the scraper blade assembly comprises a scraper blade, a fixing seat, and a connecting piece, wherein the connecting piece is connected to the scraper blade, the fixing seat is hinged on the connecting piece, at least one button hole is provided on the top of one end of the scraper arm adjacent to the fixing seat, at least one elastic tongue is provided on the top of the fixing seat, the elastic tongue is engaged in the button hole, and the elastic tongue can rotate along a first axis; characterized in that: The first axis extends in a direction parallel to the length of the scraper blade.

2. A top-button scraper arm side button connection structure according to claim 1, characterized in that: The elastic tongue is hinged on one end of an inclined piece through the first axis, and the other end of the inclined piece is hinged on a side wall of the fixing seat through a second axis.

3. A top-button scraper arm side button connection structure according to claim 2, characterized in that: The second hinge also extends in a direction parallel to the length of the scraper blade.

4. A top-button scraper arm side button connection structure according to any one of claims 1 to 3, characterized in that: Axial holes are arranged on a pair of side walls of the fixing seat, and shafts are arranged on a pair of side walls of the connecting member. The shafts are hinged in the corresponding shaft holes.

5. A top-button scraper arm side button connection structure according to claim 4, characterized in that: A limiting head is arranged at one end of the fixing seat away from the elastic tongue piece, and the limiting head cooperates with the elastic tongue piece to limit the scraper arm on the fixing seat along a direction parallel to the length of the scraper blade.

6. A top-button scraper arm side button connection structure according to claim 5, characterized in that: A notch is provided at the position where the elastic tongue is provided on the top of the fixing seat to allow the elastic tongue to deform; when the scraper arm is forcibly pulled out, the elastic tongue button deforms toward the notch in the direction of the rear wall away from the limiting head side, touches the rear wall, offsets the forced pulling force of the scraper arm, and prevents the scraper assembly from detaching from the scraper arm.

7. A top-button scraper arm side button connection structure according to claim 6, characterized in that: A pair of side walls of the fixing seat are provided with protrusions, which contact the inner surfaces of the two side walls of the scraper arm adjacent to one end of the fixing seat to limit the scraper arm on the fixing seat in a direction perpendicular to the length of the scraper blade.

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