Windshield wiper structure convenient to disassemble

Abstract

The utility model provides a wiper structure convenient to disassemble, which relates to the technical field of wipers and comprises a wiper arm and a wiper blade, the top end of the wiper arm is slidably connected with a lock head, the top of the lock head is provided with a rotary handle, the bottom of the rotary handle is rotatably connected with a ring piece, a tightening spring is fixed between the ring piece and the surface of the wiper arm, and a connecting seat is fixed in the middle of the wiper blade. According to the utility model, a quick disassembly and assembly structure is adopted, the first lock groove on the surface of the connecting seat is aligned with the lock head, then the lock head is inserted into the first lock groove, the rotary handle is rotated by 180 degrees, and after the rotary handle is loosened, the tightening spring rebounds quickly, so that the lock head and the clamping groove are firmly clamped; the compression spring provides rapid springback to enable the lock head and the clamping groove to be clamped more firmly, after the limiting clamping groove and the limiting protrusion on the two sides of the lock head are aligned, the limiting protrusion and the limiting clamping groove are firmly clamped under the springback force of the limiting spring, operation is easy and rapid, time and labor are saved, and meanwhile the stability when the wiper arm and the connecting base are connected is guaranteed through multi-layer clamping.

Description

Technical Field

[0001] The utility model relates to the technical field of windshield wipers, in particular to a windshield wiper structure which is easy to disassemble. Background Art

[0002] The wiper is an important accessory installed on the car windshield, and its function is to sweep away the snow and dust on the windshield that obstructs the view. With the continuous development of the automobile industry, wipers are divided into many types, including electric wipers, bone wipers and boneless wipers.

[0003] In the prior art, the wiper is often easily damaged during use and needs to be regularly inspected and repaired. The wiper is troublesome to disassemble, which makes it inconvenient for people to quickly replace the wiper. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and provides a wiper structure that is easy to disassemble.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a wiper structure that is easy to disassemble, including a wiper arm and a wiper blade, the top of the wiper arm is slidably connected with a lock head, the top of the lock head is set as a rotary handle, and the bottom of the rotary handle is rotatably connected with a circular ring piece, a tightening spring is fixed between the circular ring piece and the surface of the wiper arm, a connecting seat is fixed to the middle part of the wiper blade, the top of the connecting seat is provided with a first locking groove and a second locking groove from top to bottom, and the first locking groove is connected to the second locking groove, one end of the first locking groove is set as an extension groove, and the bottom of the other end of the first locking groove is provided with a clamping groove, and the diameter of the second locking groove is not less than the sum of the lengths of the first locking groove and the extension groove.

[0006] Preferably, a compression spring is fixed to the inner wall of the second lock slot, and a slide is fixed to the other end of the compression spring, and the slide is slidably connected to the side wall of the second lock slot. When the lock head enters the second lock slot, the compression spring is squeezed, and after the handle is released, the compression spring provides rapid rebound to make the lock head and the slot engage more firmly, thereby improving the connection stability between the lock head and the lock slot.

[0007] Preferably, a limiting groove is provided on the side wall of the slot, a limiting spring is fixed on the inner wall of the limiting groove, a limiting protrusion is fixed on the other end of the limiting spring, the limiting protrusion is slidably connected to the limiting groove, and limiting grooves are provided on both sides of the lock head. After the lock head enters the slot, the limiting protrusions on the side walls of the slot are squeezed into the limiting grooves. After the limiting grooves on both sides of the lock head are aligned with the limiting protrusions, the limiting protrusions are firmly engaged with the limiting grooves under the rebound force of the limiting spring, thereby further improving the connection stability between the lock head and the lock slot, thereby improving the stability of the wiper arm and the connecting seat.

[0008] Preferably, the side wall of the card slot is provided with anti-skid patterns, which increase the friction between the card slot and the lock head, and further improve the connection stability between the lock head and the card slot.

[0009] Preferably, the end of the limiting protrusion is set to be hemispherical, and the hemispherical limiting protrusion reduces the contact area between the limiting protrusion and the lock head, making it easier for the lock head to enter the slot.

[0010] Preferably, a rubber sleeve is embedded on the surface of the rotary handle, and the rubber sleeve increases the friction force on the surface of the rotary handle, making it easier for maintenance personnel to turn the rotary handle.

[0011] Beneficial Effects

[0012] In the prior art, the wiper is often easily damaged during use and needs to be regularly inspected and repaired. The wiper is troublesome to disassemble, which is not convenient for people to quickly replace the wiper. In view of such problems, the utility model adopts a quick disassembly and assembly structure. The first locking groove on the surface of the connecting seat is aligned with the lock head, and then the lock head is inserted into the first locking groove. When the lock head enters the second locking groove, the handle is rotated 180 degrees. At this time, the tightening spring is in the maximum tension state. After the handle is loosened, the tightening spring rebounds quickly, and the lock head and the slot are firmly clamped. When the lock head enters the second locking groove, the compression is squeezed. The spring provides a quick rebound after the handle is released, making the lock head and the slot engage more firmly. Finally, after the lock head enters the slot, the limiting protrusions on the side walls of the slot are squeezed into the limiting slide groove. After the limiting slots on both sides of the lock head are aligned with the limiting protrusions, the limiting protrusions and the limiting slots are firmly engaged under the rebound force of the limiting spring, further improving the connection stability between the lock head and the lock slot, thereby improving the stability of the wiper arm and the connecting seat. It is not only simple and quick to operate, but also time-saving and labor-saving. At the same time, the multi-layer engagement also ensures the stability of the wiper arm and the connecting seat when connected, so that the wiper arm and the connecting seat are very stable when the wiper blade is working. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0014] Figure 2 It is a schematic diagram of the three-dimensional structure of the wiper blade of the utility model;

[0015] Figure 3 It is a three-dimensional structural schematic diagram of the quick disassembly and assembly structure of the utility model;

[0016] Figure 4 It is a three-dimensional structural schematic diagram of the lock slot in the utility model;

[0017] Figure 5 It is a three-dimensional structural schematic diagram of the limiting mechanism in the card slot of the utility model;

[0018] Figure 6 It is a three-dimensional structural schematic diagram of the connecting seat in the utility model;

[0019] Figure 7 It is a three-dimensional structural schematic diagram of the lock in the utility model.

[0020] Legend:

[0021] 1. Wiper arm; 2. Connecting seat; 3. Wiper blade; 4. Lock head; 5. Rotary handle; 6. First locking slot; 7. Extension slot; 8. Slot; 9. Limiting protrusion; 901, limiting spring; 10. Second locking slot; 11. Slide plate; 12. Compression spring; 13. Tightening spring. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects of the present invention easy to understand, the present invention is further described below in conjunction with specific embodiments and drawings, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the present invention.

[0023] The specific embodiments of the present utility model are described below in conjunction with the accompanying drawings. Specific embodiment:

[0025] Reference Figure 1-7 A wiper structure that is easy to disassemble includes a wiper arm 1 and a wiper blade 3. A lock head 4 is slidably connected to the top of the wiper arm 1. The top of the lock head 4 is set as a rotary handle 5. A rubber sleeve is embedded on the surface of the rotary handle 5. The rubber sleeve increases the surface friction of the rotary handle 5, which is convenient for maintenance personnel to rotate the rotary handle 5. A circular ring piece is rotatably connected to the bottom of the rotary handle 5. A tightening spring 13 is fixed between the circular ring piece and the surface of the wiper arm 1. A connecting seat 2 is fixed in the middle of the wiper blade 3. A first locking groove 6 and a second locking groove 10 are opened from top to bottom on the top of the connecting seat 2. The first locking groove 6 is connected to the second locking groove 10. One end of the first locking groove 6 is set as an extension groove 7. A clamping groove 8 is opened at the bottom of the other end of the first locking groove 6. The diameter of the second locking groove 10 is not less than the sum of the lengths of the first locking groove 6 and the extension groove 7. A compression spring 12 is fixed to the inner wall of the second lock groove 10, and a slide plate 11 is fixed to the other end of the compression spring 12, and the slide plate 11 is slidably connected to the side wall of the second lock groove 10. When the lock head 4 enters the second lock groove 10, the compression spring 12 is squeezed. After the handle 5 is released, the compression spring 12 provides rapid rebound to make the lock head 4 and the slot 8 more firmly engaged, thereby improving the connection stability between the lock head 4 and the lock groove.

[0026] The side wall of the slot 8 is provided with a limited sliding groove, and a limited spring 901 is fixed on the inner wall of the limited sliding groove. A limited protrusion 9 is fixed on the other end of the limited spring 901. The limited protrusion 9 is slidably connected with the limited sliding groove. The end of the limited protrusion 9 is set to be hemispherical. The hemispherical limited protrusion 9 reduces the contact area between the limited protrusion 9 and the lock head 4, which is convenient for the lock head 4 to enter the slot 8. Limited slots are provided on both sides of the lock head 4. After the lock head 4 enters the slot 8, the limited protrusion 9 on the side wall of the slot 8 is squeezed into the limited sliding groove. After the limited slots on both sides of the lock head 4 are aligned with the limited protrusion 9, the limited protrusion 9 is firmly engaged with the limited slot 8 under the rebound force of the limited spring 901, which further improves the connection stability between the lock head 4 and the lock slot, thereby improving the stability of the wiper arm 1 and the connecting seat 2. The side wall of the card slot 8 is provided with anti-skid patterns, which increase the friction between the card slot 8 and the lock head 4 and further improve the connection stability between the lock head 4 and the card slot 8 .

[0027] In the prior art, the wiper is often easily damaged during use and needs to be regularly inspected and repaired. The wiper is troublesome to disassemble, which is not convenient for people to quickly replace the wiper. In view of such problems, the utility model adopts a quick disassembly and assembly structure. The first locking groove 6 on the surface of the connecting seat 2 is aligned with the lock head 4, and then the lock head 4 is inserted into the first locking groove 6. When the lock head 4 enters the second locking groove 10, the handle 5 is rotated 180 degrees. At this time, the tightening spring 13 is in the maximum tension state. After the handle 5 is loosened, the tightening spring 13 rebounds quickly, and the lock head 4 is firmly clamped with the slot 8. When the lock head 4 enters the second locking groove 10, the compression spring 12 is squeezed. After loosening the rotary handle 5, the compression spring 12 provides a rapid rebound to make the lock head 4 and the slot 8 engage more firmly. Finally, after the lock head 4 enters the slot 8, the limiting protrusion 9 on the side wall of the slot 8 is squeezed into the limiting slide groove. After the limiting slots on both sides of the lock head 4 are aligned with the limiting protrusion 9, under the rebound force of the limiting spring 901, the limiting protrusion 9 and the limiting slot 8 are firmly engaged, further improving the connection stability between the lock head 4 and the lock slot, thereby improving the stability of the wiper arm 1 and the connecting seat 2. It is not only simple and quick to operate, but also time-saving and labor-saving. At the same time, the multi-layer engagement also ensures the stability of the wiper arm 1 when connected to the connecting seat 2, so that the wiper arm 1 and the connecting seat 2 are very stable when the wiper blade 3 is working.

[0028] The working principle of the utility model is as follows: align the first locking groove 6 on the surface of the connecting seat 2 with the lock head 4, and then insert the lock head 4 into the first locking groove 6. When the lock head 4 enters the second locking groove 10, turn the handle 5180 degrees. At this time, the tightening spring 13 is in the maximum tension state. After the handle 5 is released, the tightening spring 13 rebounds quickly, and the lock head 4 and the slot 8 are firmly clamped. When the lock head 4 enters the second locking groove 10, the compression spring 12 is squeezed. After the handle 5 is released, the compression spring 12 provides a rapid rebound to make the lock head 4 and the slot 8 more firmly engaged. Finally, after the lock head 4 enters the slot 8, the limiting protrusion 9 on the side wall of the slot 8 is squeezed into the limiting slide groove. After the limiting slots on both sides of the lock head 4 are aligned with the limiting protrusion 9, under the rebound force of the limiting spring 901, the limiting protrusion 9 and the limiting slot 8 are firmly engaged.

[0029] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0030] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A wiper structure that is easy to disassemble, comprising a wiper arm (1) and a wiper blade (3), characterized in that: The top of the wiper arm (1) is slidably connected to a lock head (4), the top of the lock head (4) is set as a rotary handle (5), and the bottom of the rotary handle (5) is rotatably connected to a circular ring piece, a tightening spring (13) is fixed between the circular ring piece and the surface of the wiper arm (1), a connecting seat (2) is fixed in the middle of the wiper blade (3), the top of the connecting seat (2) is provided with a first locking groove (6) and a second locking groove (10) from top to bottom, and the first locking groove (6) is connected to the second locking groove (10), one end of the first locking groove (6) is set as an extension groove (7), the bottom of the other end of the first locking groove (6) is provided with a clamping groove (8), and the diameter of the second locking groove (10) is not less than the sum of the lengths of the first locking groove (6) and the extension groove (7).

2. The easily disassembled wiper structure according to claim 1, characterized in that: A compression spring (12) is fixed to the inner wall of the second locking groove (10), a slide plate (11) is fixed to the other end of the compression spring (12), and the slide plate (11) is slidably connected to the side wall of the second locking groove (10).

3. The easily disassembled wiper structure according to claim 1, characterized in that: The side wall of the clamping slot (8) is provided with a limit sliding slot, the inner wall of the limit sliding slot is fixed with a limit spring (901), the other end of the limit spring (901) is fixed with a limit protrusion (9), the limit protrusion (9) is slidably connected to the limit sliding slot, and both sides of the lock head (4) are provided with limit clamping slots.

4. The easily disassembled wiper structure according to claim 1, characterized in that: The side wall of the card slot (8) is provided with anti-slip grooves.

5. The easily disassembled wiper structure according to claim 3, characterized in that: The end of the limiting protrusion (9) is designed to be hemispherical.

6. The easily disassembled wiper structure according to claim 1, characterized in that: A rubber sleeve is embedded on the surface of the rotating handle (5).

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