Windshield wiper connecting structure

Abstract

The utility model provides a wiper connecting structure, which relates to the technical field of automobile accessories and comprises a force arm, one end of the force arm is arranged on an automobile body, the other end of the force arm is hinged with a support through a pin shaft, the lower end of the support is provided with a convenient locking mechanism, the convenient locking mechanism comprises a locking sleeve seat, and the inner wall of the locking sleeve seat is movably connected with a connecting shell in an inserted mode. Guide grooves which are symmetrically distributed are formed in the upper ends of the two sides of the connecting shell, penetrating holes which are symmetrically distributed are formed in the two sides of the connecting shell, locking holes which are symmetrically distributed are formed in the two sides of the locking sleeve base, and one end of each locking hole communicates with one end of the corresponding penetrating hole. The replacement difficulty is reduced, the replacement efficiency is improved, corrosion to the supporting spring caused by rainwater infiltration is avoided, and the service life is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts technology, and in particular to a windshield wiper connection structure. Background Technology

[0002] Windshield wipers are tools used to clean the windshield of motor vehicles to prevent rainwater and other dirt from obstructing vision. Traditional wiper blade structures often fail to effectively clean the windshield. Furthermore, the wipers are typically attached to the vehicle using a snap-fit ​​connection, where a wedge-shaped plastic piece clips into the wiper's slot. This snap-fit ​​connection method is prone to aging or losing elasticity after repeated use and replacements, leading to loosening at the connection and affecting the wiper's stability.

[0003] For example, a wiper connection structure disclosed in Chinese patent literature (publication number: CN222040424U) uses a locking mechanism to fix the wiper. The locking mechanism uses a locking rod inserted into the locking hole to fix the wiper, replacing the traditional plastic wedge block snap-fit ​​method. After the connection is locked, the interface position is fixed and stable. Even after multiple uses, it is not easy to loosen or come loose. The fixing effect is good. When the wiper body needs to be replaced later, the operation is convenient and the cost is low, which meets the usage requirements.

[0004] However, when the operator is holding the two levers with one hand and moving them relative to each other, the other hand needs to hold the wiper blade to be installed. At this time, it is not convenient to hold the locking sleeve well, which increases the difficulty of inserting the lever into the locking sleeve. In addition, the through groove on the outside of the sleeve, in order to cooperate with the movement of the unlocking handle, will expose the internal spring directly to the external environment. This will cause rainwater to enter the inside of the sleeve. Since the spring is mostly made of metal, long-term immersion in rainwater containing acidic substances, salt and other corrosive components will continuously corrode the spring, thus reducing its service life. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies, such as the cumbersome and unstable replacement of windshield wipers, the tendency for rainwater to continuously corrode the springs and reduce their service life.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A windshield wiper connection structure includes a lever arm, one end of which is mounted on a vehicle body, and the other end of which is hinged to a support via a pin. The lower end of the support is provided with a convenient locking mechanism, which includes a locking sleeve.

[0008] The inner wall of the locking sleeve is movably connected to a connecting housing. The upper ends of both sides of the connecting housing are provided with symmetrically distributed guide grooves. The two sides of the connecting housing are provided with symmetrically distributed through holes. The two sides of the locking sleeve are provided with symmetrically distributed locking holes. One end of the locking hole is connected to one end of the through hole.

[0009] Preferably, a fixing plate is fixedly connected to the inner top wall of the locking sleeve, the lower end of the fixing plate extends into the interior of the connecting housing, and guide rods that are symmetrically distributed are fixedly connected to both sides of the fixing plate.

[0010] Preferably, the four guide rods are arranged in pairs and symmetrically distributed. Each group of guide rods is movably sleeved with a movable plate, and one side of the movable plate is fixedly connected with symmetrically distributed support springs.

[0011] Preferably, one end of each of the two support springs is fixedly connected to one side of the fixed plate, and the other side of the movable plate is fixedly connected with symmetrically distributed limiting rods.

[0012] Preferably, one end of the limiting rod is movably inserted into the inner wall of the through hole and the locking hole respectively, one end of the limiting rod extends to one side surface of the locking sleeve, and a driving rod is fixedly connected to the other side of the movable plate.

[0013] Preferably, one end of the drive rod is slidably connected to the inner wall of the guide groove, one end of the drive rod penetrates and extends to one side surface of the locking sleeve, and one end of the drive rod is fixedly connected to a pressing block.

[0014] Preferably, a sealing plate is fixedly connected to the lower end of the connecting housing, the upper end of the sealing plate contacts the lower end of the locking sleeve, and the lower end of the sealing plate is fixedly connected to the wiper body.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] In this invention, the convenient locking mechanism enables quick disassembly and replacement of the wiper body, reducing replacement difficulty, improving replacement efficiency, and preventing rainwater from seeping in and corroding the support spring, thereby extending its service life. Attached Figure Description

[0017] Figure 1 A schematic diagram of the main structure of a wiper connection structure provided by this utility model;

[0018] Figure 2 A perspective view of a sealing plate structure for a wiper connection structure provided by this utility model;

[0019] Figure 3 A perspective view of a locking sleeve structure for a wiper connection structure provided by this utility model;

[0020] Figure 4 A perspective view of a fixing plate structure for a wiper connection structure provided by this utility model;

[0021] Figure 5 A perspective view of the connecting shell structure of a wiper connection structure provided by this utility model.

[0022] Legend: 1. Lever arm; 2. Support; 3. Locking sleeve; 31. Connecting housing; 32. Guide groove; 33. Through hole; 34. Locking hole; 35. Fixing plate; 36. Guide rod; 37. Movable plate; 38. Support spring; 39. Limiting rod; 310. Drive rod; 311. Pressing block; 312. Sealing plate; 4. Wiper body. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0024] To facilitate understanding of this utility model, a more comprehensive description of this utility model will be provided below with reference to relevant embodiments, and several embodiments of this utility model will be given. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of this utility model more thorough and complete.

[0025] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0027] Example

[0028] like Figure 1-5 As shown, this utility model provides a technical solution: a windshield wiper connection structure, including a lever arm 1. The lever arm 1 is made of high-strength alloy material, which has good toughness and fatigue resistance, and can withstand various forces generated by the windshield wiper during operation, ensuring the stability and reliability of the structure. One end of the lever arm 1 is firmly set on the vehicle body through professional installation process. The connection part is specially treated to ensure a tight connection between the lever arm 1 and the vehicle body, preventing loosening or shaking during vehicle operation. The other end of the lever arm 1 is hinged to a support 2 by a pin. The pin is made of high-quality steel, and the surface is precision machined and heat-treated, which has high hardness and wear resistance, allowing the support 2 to rotate flexibly around the lever arm 1 to adapt to different working angles and positions. The lower end of the support 2 is provided with a convenient locking mechanism, which includes a locking sleeve 3. The locking sleeve 3 is made of high-strength engineering plastic material, which has the characteristics of light weight and corrosion resistance. Its internal structure is reasonably designed, providing good space and conditions for the insertion and locking of the connecting housing 31.

[0029] The inner wall of the locking sleeve 3 is movably inserted into the connecting housing 31, and the fit between the two is highly precise. This ensures that the connecting housing 31 can be smoothly inserted and removed, and also ensures a tight connection in the locked state. The upper ends of both sides of the connecting housing 31 are provided with symmetrically distributed guide grooves 32. The inner walls of the guide grooves 32 are smooth, providing a smooth channel for the sliding of the drive rod 310. The connecting housing 31 is provided with symmetrically distributed through holes 33 on both sides, and the locking sleeve 3 is provided with symmetrically distributed locking holes 34 on both sides. One end of the locking hole 34 is connected to one end of the through hole 33. When the connecting housing 31 is inserted into the locking sleeve 3 and the position is accurate, the through hole 33 and the locking hole 34 can be precisely aligned, providing a channel for the insertion of the limit rod 39.

[0030] The inner top wall of the locking sleeve 3 is fixedly connected to a fixing plate 35 by a strong welding process. The fixing plate 35 is made of stainless steel, which has strong strength and corrosion resistance. The lower end of the fixing plate 35 extends into the interior of the connecting housing 31. The two sides of the fixing plate 35 are fixedly connected to symmetrically distributed guide rods 36 by precision machining and installation processes. The surface of the guide rods 36 is polished to reduce the friction between them and the movable plate 37, ensuring that the movable plate 37 can slide flexibly on the guide rods 36.

[0031] The four guide rods 36 are arranged in pairs and symmetrically distributed. Each group of guide rods 36 is movably fitted with a movable plate 37. The movable plate 37 is made of lightweight aluminum alloy, which reduces the overall weight while ensuring strength. One side of the movable plate 37 is fixedly connected by welding to a symmetrically distributed support spring 38. The support spring 38 is made of high-quality spring steel and has a suitable elastic coefficient, which can provide stable elastic force during compression and extension.

[0032] One end of each of the two support springs 38 is fixedly connected to one side of the fixed plate 35 by welding to ensure the connection is firm. The other side of the movable plate 37 is fixedly connected with symmetrically distributed limit rods 39 by machining and assembly processes. The limit rods 39 are made of high-strength steel and the surface is hardened to improve wear resistance and deformation resistance.

[0033] One end of the limiting rod 39 is movably inserted into the inner wall of the through hole 33 and the locking hole 34 respectively. When the limiting rod 39 is inserted into the through hole 33 and the locking hole 34, it can firmly lock the connecting housing 31 in the locking sleeve 3. One end of the limiting rod 39 extends to one side surface of the locking sleeve 3 for easy observation and operation. The other side of the movable plate 37 is fixedly connected to the drive rod 310. The connection between the drive rod 310 and the movable plate 37 is tight and reliable, and can accurately transmit the force.

[0034] One end of the drive rod 310 is slidably connected to the inner wall of the guide groove 32. The drive rod 310 slides smoothly in the guide groove 32, which can ensure the stable movement of the movable plate 37. One end of the drive rod 310 passes through and extends to one side surface of the locking sleeve 3. One end of the drive rod 310 is fixedly connected to a pressing block 311 by bolts. The surface of the pressing block 311 is treated with anti-slip treatment to facilitate the operator's pressing operation.

[0035] A sealing plate 312 is fixedly connected to the lower end of the connecting housing 31 by injection molding. The sealing plate 312 is made of rubber and has good elasticity and sealing performance. The upper end of the sealing plate 312 is in close contact with the lower end of the locking sleeve 3, which can effectively prevent rainwater and dust from entering the interior of the locking sleeve 3. The lower end of the sealing plate 312 is fixedly connected to the wiper body 4 by bolts. The connection is firm and ensures that the wiper body 4 can work stably.

[0036] The working process of this utility model:

[0037] Step 1: When the wiper body 4 needs to be replaced, the operator moves their hand to the pressing blocks 311 on both sides of the locking sleeve 3. The pressing blocks 311 are the key points of force for operation and are tightly connected to one end of the drive rod 310. One end of the drive rod 310 is precisely embedded in the inner wall of the guide groove 32 and can slide flexibly. When the finger presses the pressing block 311 firmly, the force is transmitted to the drive rod 310 through the pressing block 311. The drive rod 310 quickly moves into the connecting housing 31 along the guide groove 32. This movement of the drive rod 310 causes the movable plate 37 fixed to it to start compressing the support spring 38. The movable plate 37 is forced to move closer to the fixed plate 35. The limiting rod 39, which was originally inserted into the through hole 33 and the locking hole 34, is also slowly pulled out from the through hole 33 and the locking hole 34 under this force. At this moment, the operator only needs to pull down gently to smoothly pull the connecting housing 31 out of the locking sleeve 3 and quickly complete the disassembly of the wiper body 4.

[0038] Step two: While maintaining pressure on the pressing block 311, hold the new wiper body 4 and align the connecting housing 31 with the opening below the locking sleeve 3, inserting it smoothly. At this time, the guide grooves 32 on both sides of the upper end of the connecting housing 31 slowly move upward along the guide rods 36 on both sides of the inner top wall fixing plate 35 of the locking sleeve 3. The guide rods 36 act like precise guide rails, ensuring that the connecting housing 31 enters the locking sleeve 3 vertically and smoothly, without deviation. As the connecting housing 31 continues to penetrate deeper, when the through holes 33 on both sides of the connecting housing 31 align with the opening below the locking sleeve 3... Just as the locking holes 34 on both sides of the locking sleeve 3 are about to align, the movable plate 37 was already in a ready state under the action of the support spring 38. The support spring 38 exerts its own elasticity to push the movable plate 37 to move towards the through hole 33 and the locking hole 34. The limiting rod 39, which is closely connected to the movable plate 37, is precisely inserted into the through hole 33 and the locking hole 34 as the movable plate 37 moves. The connecting housing 31 is firmly locked in the locking sleeve 3, and the wiper body 4 and the support 2 are thus stably connected.

[0039] Step 3: The sealing plate 312, which is fixedly connected to the lower end of the connecting housing 31, plays a crucial role in waterproofing. The upper end of the sealing plate 312 fits tightly with the lower end of the locking sleeve 3, effectively preventing rainwater from seeping into the interior of the locking sleeve 3 from below. Since rainwater cannot enter, the support spring 38 inside the locking sleeve 3 will not be corroded by rainwater, avoiding problems such as rusting and weakening of elasticity caused by rainwater corrosion, thus ensuring the service life of the support spring 38.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A windshield wiper connection structure, comprising a lever arm (1), one end of which is disposed on a vehicle body, characterized in that: The other end of the lever arm (1) is hinged to a support (2) by a pin. The lower end of the support (2) is provided with a convenient locking mechanism, and the convenient locking mechanism includes a locking sleeve (3). The inner wall of the locking sleeve (3) is movably connected to a connecting housing (31). The upper ends of both sides of the connecting housing (31) are provided with symmetrically distributed guide grooves (32). The two sides of the connecting housing (31) are provided with symmetrically distributed through holes (33). The two sides of the locking sleeve (3) are provided with symmetrically distributed locking holes (34). One end of the locking hole (34) is connected to one end of the through hole (33).

2. The wiper connection structure according to claim 1, characterized in that: The inner top wall of the locking sleeve (3) is fixedly connected to a fixing plate (35), the lower end of the fixing plate (35) extends into the interior of the connecting housing (31), and the two sides of the fixing plate (35) are fixedly connected to guide rods (36) that are symmetrically distributed.

3. The wiper connection structure according to claim 2, characterized in that: The four guide rods (36) are arranged in pairs and symmetrically distributed. Each group of guide rods (36) is movably sleeved with a movable plate (37). One side of the movable plate (37) is fixedly connected with symmetrically distributed support springs (38).

4. The wiper connection structure according to claim 3, characterized in that: One end of each of the two support springs (38) is fixedly connected to one side of the fixed plate (35), and the other side of the movable plate (37) is fixedly connected to symmetrically distributed limiting rods (39).

5. A wiper connection structure according to claim 4, characterized in that: One end of the limiting rod (39) is movably inserted into the inner wall of the through hole (33) and the locking hole (34), respectively. One end of the limiting rod (39) extends to one side surface of the locking sleeve (3), and the other side of the movable plate (37) is fixedly connected to the driving rod (310).

6. A wiper connection structure according to claim 5, characterized in that: One end of the drive rod (310) is slidably connected to the inner wall of the guide groove (32), and one end of the drive rod (310) extends through and to one side surface of the locking sleeve (3). A pressing block (311) is fixedly connected to one end of the drive rod (310).

7. A wiper connection structure according to claim 1, characterized in that: A sealing plate (312) is fixedly connected to the lower end of the connecting housing (31), the upper end of the sealing plate (312) is in contact with the lower end of the locking sleeve (3), and the lower end of the sealing plate (312) is fixedly connected to the wiper body (4).

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