High-speed scraping arm connecting structure

Abstract

The utility model discloses a high-speed wiper arm connecting structure which comprises a wiper blade, a wiper blade fixing seat fixedly connected with the wiper blade, an outer cover covering the wiper blade fixing seat and a wiper arm with one end inserted between the outer cover and the wiper blade fixing seat, and the outer cover is provided with a windward side and a leeward side. A first opening shaft hole is formed in the scraper fixing seat, and the axis of the first opening shaft hole is perpendicular to the length direction of the scraper; a rotating shaft is arranged in the outer cover, and the axis of the rotating shaft is perpendicular to the length direction of the scraper; the end, inserted into the outer cover and the wiper blade fixing base, of the wiper arm is in a first U shape, second opening shaft holes are formed in the two side walls of the first U shape, and the axes of the second opening shaft holes are perpendicular to the length direction of the wiper blade. During assembly, the second opening shaft hole is clamped on the rotating shaft, and the rotating shaft is clamped in the first opening shaft hole, so that the wiper arm is inserted into one end of the outer cover and one end of the wiper blade fixing seat to be combined with the outer cover and the wiper blade fixing seat, and the wiper arm and the outer cover rotate around the first opening shaft hole.

Description

Technical Field

[0001] The utility model relates to the technical field of high-speed scraper arms, in particular to a high-speed scraper arm connection structure. Background Art

[0002] In order to improve the high-speed performance of the scraper blade, some manufacturers on the market have changed the scraper cover into a slope, that is, the windward side is changed into a slope, which can increase the downward pressure of the high-speed airflow on the scraper blade.

[0003] At present, manufacturers on the market insert the scraper arm between the outer cover and the scraper blade fixing seat. Due to the limited space on the inclined surface, the end of the scraper arm inserted between the outer cover and the scraper blade fixing seat is usually cut very narrow, resulting in a general reduction in the stiffness of the scraper arm. At the same time, since the scraper arm is matched with the outer cover, and the outer cover is matched with the scraper blade fixing seat, the accumulated gap between the two usually leads to an excessive gap between the scraper blade and the scraper arm, resulting in a swinging phenomenon. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a high-speed scraper arm connection structure that reduces the clearance between the scraper blade and the scraper arm in order to reduce the swinging phenomenon in view of the deficiencies in the above-mentioned prior art.

[0005] The technical problem to be solved by the utility model can be achieved through the following technical solutions:

[0006] A high-speed scraper arm connection structure comprises a scraper blade, a scraper blade fixing seat fixedly connected to the scraper blade, an outer cover covering the scraper blade fixing seat and a scraper arm with one end inserted between the outer cover and the scraper blade fixing seat, the outer cover having a windward surface and a leeward surface; a first open shaft hole is provided on the scraper blade fixing seat, and the axis of the first open shaft hole is perpendicular to the length direction of the scraper blade; a rotating shaft is provided in the outer cover, and the axis of the rotating shaft is perpendicular to the length direction of the scraper blade; the end of the scraper arm inserted into the outer cover and the scraper blade fixing seat is in a first U-shape, and a second open shaft hole is provided on the two side walls of the first U-shape, and the axis of the second open shaft hole is perpendicular to the length direction of the scraper blade; during assembly, the second open shaft hole is clamped on the rotating shaft, and the rotating shaft is clamped in the first open shaft hole, so that the end of the scraper arm inserted into the outer cover and the scraper blade fixing seat is combined with the outer cover and the scraper blade fixing seat, and the scraper arm and the outer cover rotate around the first open shaft hole.

[0007] In a preferred embodiment of the utility model, a groove is provided on the scraper fixing seat, and a hook is provided on one side wall of the first U-shape, and the hook is inserted into the groove to limit the scraper arm from withdrawing from the scraper fixing seat in the length direction of the scraper.

[0008] In a preferred embodiment of the utility model, a vertical wall is provided in the outer cover, a second U-shape is formed between the vertical wall and the leeward side of the outer cover, and the second U-shape wraps the first U-shape.

[0009] In a preferred embodiment of the utility model, at least one first step notch is provided on the side wall of the first U-shape adjacent to the vertical wall, and at least one first hook is provided on the vertical wall, and the first hook is clamped in the corresponding first step notch to limit the outer cover from withdrawing from the scraper arm in the length direction of the scraper blade.

[0010] In a preferred embodiment of the utility model, at least one second step notch is provided on the side wall of the first U-shape away from the vertical wall, and at least one second hook is provided on the leeward side of the outer cover, and the second hook is clamped in the corresponding second step notch to limit the outer cover from withdrawing from the scraper arm in the length direction of the scraper blade.

[0011] Due to the adoption of the above technical solution, the end of the scraper arm inserted between the outer cover and the scraper blade fixing seat of the utility model is U-shaped, and the strength is increased. In addition, the end of the scraper arm inserted between the outer cover and the scraper blade fixing seat is connected to the first open shaft hole on the scraper blade fixing seat through the rotating shaft together with the outer cover, so that the matching clearance is reduced and the swing phenomenon is reduced. The scraper arm and the scraper blade fixing seat are combined in a hook and groove manner, which limits the scraper arm from exiting the scraper blade fixing seat in the scraper blade length direction; the outer cover and the scraper arm are clamped by a hook and a step notch, which limits the outer cover from exiting the scraper arm in the scraper blade length direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the high-speed scraper arm structure of the utility model.

[0013] Figure 2 It is a structural schematic diagram of one end of the scraper arm of the utility model inserted between the outer cover and the scraper blade fixing seat.

[0014] Figure 3 This is a schematic diagram of the outer cover structure of the utility model.

[0015] Figure 4 It is a schematic diagram of the structure of the scraper fixing seat of the utility model.

[0016] Figure 5 It is a schematic diagram of the assembly between the scraper arm and the outer cover of the utility model.

[0017] Figure 6 This is one of the schematic diagrams showing that the scraper arm and the outer cover of the utility model are installed together on the scraper blade fixing seat.

[0018] Figure 7This is the second schematic diagram of the scraper arm and the outer cover of the utility model being installed on the scraper blade fixing seat. DETAILED DESCRIPTION

[0019] The present invention is further described below in conjunction with the accompanying drawings and specific implementations.

[0020] See also Figures 1 to 7 A high-speed scraper arm connection structure shown in the figure includes a scraper blade 10, a scraper blade fixing seat 20 fixedly connected to the scraper blade 10, an outer cover 30 covering the scraper blade fixing seat 20, and a scraper arm 40 with one end inserted between the outer cover 30 and the scraper blade fixing seat 20.

[0021] The outer cover 30 has a windward surface 31 and a leeward surface 32 ; an open shaft hole 21 (the aforementioned first open shaft hole) is provided on the scraper blade fixing seat 20 , and the axis of the open shaft hole 21 is perpendicular to the length direction of the scraper blade 10 .

[0022] A vertical wall 33 is provided in the outer cover 30, and a second U-shape is formed between the vertical wall 33 and the leeward surface 32 of the outer cover 30. A rotating shaft 34 is provided between the vertical wall 33 and the leeward surface 32 of the outer cover 30, and the axis of the rotating shaft 34 is perpendicular to the length direction of the scraper 10.

[0023] The end 41 of the scraper arm 40 inserted into the outer cover 30 and the scraper blade fixing seat 20 is in a first U shape to increase the strength of the scraper arm 40 inserted into the outer cover 30 and the end 41 of the scraper blade fixing seat 20. After the end 41 of the scraper arm 40 is inserted into the outer cover 30, the second U shape wraps around the first U shape to reduce the gap between the scraper arm 40 and the outer cover 30.

[0024] An open shaft hole 42a, 43a (the aforementioned second open shaft hole) is formed on both side walls 42, 43 of the first U-shape. The axes of the open shaft holes 42a, 43a are coaxial and perpendicular to the length direction of the scraper blade 10.

[0025] During assembly, the scraper arm 40 is inserted into the second U-shape formed between the outer cover 30 and the scraper blade fixing seat 20, and the second U-shape wraps the first U-shape. The open shaft holes 42a and 43a are clamped on the rotating shaft 34, and the rotating shaft 34 is clamped in the open shaft hole 21, so that the scraper arm 40 inserted into the outer cover 30 and the scraper blade fixing seat 20 is combined with the outer cover 30 and the scraper blade fixing seat 20, and the scraper arm 40 and the outer cover 30 rotate around the open shaft hole 21.

[0026] A groove 22 is provided on the scraper fixing seat 20 , and a hook 44 is provided on a side wall 42 of the first U shape. The hook 44 is inserted into the groove 22 to limit the scraper arm 40 from exiting the scraper fixing seat 20 in the length direction of the scraper 10 .

[0027] Two step notches 42b are provided on the side wall 42 of the first U-shape adjacent to the vertical wall 33 (the aforementioned first step notch may of course also be one), and two hooks 35 are provided on the vertical wall 33 (the aforementioned first hook may of course also be one), and the hooks 35 are clamped in the corresponding step notches 45 to limit the outer cover 30 from withdrawing from the scraper arm 40 in the length direction of the scraper blade 10.

[0028] Two step notches 43a are provided on the side wall 43 of the first U-shape away from the vertical wall 33 (the aforementioned second step notch may of course also be one), and two hooks 32a are provided on the leeward side 32 of the outer cover 30 (the aforementioned second hook may of course also be one), and the hooks 32a are stuck in the corresponding step notches 43a to limit the outer cover 30 from withdrawing from the scraper arm 40 in the length direction of the scraper blade 10.

Claims

1. A high-speed scraper arm connection structure, comprising a scraper blade, a scraper blade fixing seat fixedly connected to the scraper blade, an outer cover covering the scraper blade fixing seat, and a scraper arm with one end inserted between the outer cover and the scraper blade fixing seat, wherein the outer cover has a windward surface and a leeward surface; characterized in that: A first open shaft hole is arranged on the scraper blade fixing seat, and the axis of the first open shaft hole is perpendicular to the length direction of the scraper blade; a rotating shaft is arranged in the outer cover, and the axis of the rotating shaft is perpendicular to the length direction of the scraper blade; the scraper arm is inserted into the outer cover and the scraper blade fixing seat at one end to form a first U-shape, and a second open shaft hole is provided on the two side walls of the first U-shape, and the axis of the second open shaft hole is perpendicular to the length direction of the scraper blade; during assembly, the second open shaft hole is clamped on the rotating shaft, and the rotating shaft is clamped in the first open shaft hole, so that the scraper arm is inserted into the outer cover and the scraper blade fixing seat at one end and is combined with the outer cover and the scraper blade fixing seat, and the scraper arm and the outer cover rotate around the first open shaft hole.

2. The high-speed scraper arm connection structure according to claim 1, characterized in that: A groove is arranged on the scraper fixing seat, and a hook is arranged on one side wall of the first U-shape. The hook is inserted into the groove to limit the scraper arm from withdrawing from the scraper fixing seat in the length direction of the scraper.

3. The high-speed scraper arm connection structure according to claim 2, characterized in that: A vertical wall is arranged in the outer cover, and a second U-shape is formed between the vertical wall and the leeward side of the outer cover, and the second U-shape wraps the first U-shape.

4. The high-speed scraper arm connection structure according to claim 3, characterized in that: At least one step gap is arranged on the side wall of the first U-shape adjacent to the vertical wall, and at least one hook is arranged on the vertical wall. The hook is caught in the corresponding step gap to limit the outer cover from withdrawing from the scraper arm in the length direction of the scraper blade.

5. The high-speed scraper arm connection structure according to claim 4, characterized in that: At least one second step notch is arranged on the side wall of the first U-shape away from the vertical wall, and at least one second hook is arranged on the leeward side of the outer cover, and the second hook is clamped in the corresponding second step notch to limit the outer cover from withdrawing from the scraper arm in the length direction of the scraper blade.

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