Novel scraping arm shaft sleeve meeting requirements of automobile body metal plates with different thicknesses

Abstract

The utility model discloses a novel wiper arm shaft sleeve meeting requirements of car body metal plates with different thicknesses, which is used for being sleeved on the periphery of a wiper arm shaft (1) to be matched with a waterproof cover (2) and comprises a wiper arm shaft sleeve main body (3), an axial adjustable connecting structure (4) is arranged on the wiper arm shaft sleeve main body (3), and the waterproof cover (2) is connected to the periphery of the wiper arm shaft sleeve main body (3) through the axial adjustable connecting structure (4). The utility model can adapt to metal plates with different thicknesses, and can reduce the number of dies, reduce the cost and improve the production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts technology, and in particular to a novel scraper arm bushing that meets the requirements of sheet metal of different thicknesses. Background Technology

[0002] The wiper motor assembly is located on the cab side, while the wiper arm is on the outside of the cab. The wiper arm shaft and wiper arm shaft assembly pass through a hole in the body panel and connect to the wiper arm on the outside of the cab, driving the wiper blades to swing. Water from the outside may enter the cab through this hole, wetting the cab's instruments and potentially causing damage.

[0003] Currently, the existing scraper arm bushing has only one groove. The waterproof cover is fitted into the groove of the scraper arm bushing to achieve a tight fit with the body sheet metal, preventing external water from entering the cab and achieving the function of waterproofing.

[0004] The thickness of the sheet metal varies depending on the purpose of the vehicle. For example, the sheet metal thickness of civilian vehicles is 1.5mm, while that of military vehicles is 5.5mm.

[0005] Therefore, the existing scraper arm bushing has the following problems:

[0006] 1. In order to ensure that the waterproof cover fits tightly with the body sheet metal, the size of the scraper arm bushing groove will vary depending on the thickness of the sheet metal, and personalized processing is required, which increases the investment in molds.

[0007] 2. The scraper arm bushing has only one groove, which makes it impossible to adjust the position of the waterproof cover to achieve a tight fit with the body sheet metal, potentially causing water leakage into the cab. Utility Model Content

[0008] The purpose of this utility model is to provide a new type of scraper bushing that can meet the needs of sheet metal of different thicknesses. This utility model can be adapted to sheet metal of different thicknesses, which can reduce the number of molds, reduce costs, and improve production efficiency.

[0009] To achieve the above objectives, this utility model provides the following technical solution: a novel scraper arm bushing for different thicknesses of car body sheet metal, used to be sleeved on the outer periphery of the scraper arm shaft and cooperate with the waterproof cover, including a scraper arm bushing body, the scraper arm bushing body is provided with an axially adjustable connection structure, and the waterproof cover is connected to the outer periphery of the scraper arm bushing body through the axially adjustable connection structure.

[0010] By adopting the above technical solution, after the scraper arm shaft and the scraper arm bushing body are assembled together to form a component, the waterproof cover is fitted onto the outer circumference of the scraper arm bushing body. The axial position of the waterproof cover is adjusted according to different sheet metal thicknesses via an axially adjustable connection structure, achieving a tight fit between the waterproof cover and the vehicle body sheet metal. Therefore, this utility model can adapt to sheet metal of different thicknesses (e.g., 1.5mm for civilian vehicles and 5.5mm for military vehicles), reducing the number of molds, lowering costs, and improving production efficiency.

[0011] The present invention is further configured such that the axially adjustable connection structure includes at least two grooves distributed axially on the outer wall of the scraper bushing body, and the waterproof cover is provided with a protrusion for engaging with one of the grooves.

[0012] By adopting the above technical solution, the scraper arm bushing body and the waterproof cover are fitted together in a concave-convex manner. That is, multiple grooves are distributed along the axial direction on the outer wall of the scraper arm bushing body, and the waterproof cover is stuck in the corresponding groove of the scraper arm bushing body to realize the adjustment of the position of the waterproof cover, thereby achieving the purpose of tightly fitting with the sheet metal body.

[0013] The present invention is further configured such that the groove is annular in shape.

[0014] By adopting the above technical solution, it is the first way to set the groove, which can be obtained by machining and is very convenient to process.

[0015] The present invention is further configured such that the groove is in the shape of a cylindrical groove.

[0016] By adopting the above technical solution, which is the second way to set the groove, the product structure becomes more diverse and can be adapted to different waterproof covers.

[0017] The present invention is further configured such that the axially adjustable connection structure includes at least two protrusions distributed axially on the outer wall of the scraper arm bushing body, and the waterproof cover is provided with a recess for fitting into one of the grooves.

[0018] By adopting the above technical solution, it is another way to set up the concave-convex structure.

[0019] The present invention is further provided that the inner edge of the upper end of the scraper bushing body is provided with an annular sealing groove for embedding a sealing ring.

[0020] By adopting the above technical solution, the sealing between the crank arm shaft and the scraper arm bushing body can be guaranteed, preventing water from passing through the gap between the two, and thus preventing water from seeping into the cab through the sheet metal holes and wetting the cab instruments. Attached Figure Description

[0021] Figure 1This is a structural diagram of the waterproof cover of this utility model before assembly;

[0022] Figure 2 This is a schematic diagram of the structure of this utility model after the waterproof cover is assembled;

[0023] Figure 3 This is a schematic diagram of the mating structure between the scraper arm shaft and the scraper arm bushing body of this utility model.

[0024] In the diagram: 1. Scraper arm shaft; 2. Waterproof cover; 3. Scraper arm bushing body; 4. Axially adjustable connection structure; 5. Groove; 6. Protrusion; 7. Annular sealing groove; 8. Sealing ring; 9. Retaining ring; 10. Flat gasket. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Example: As attached Figures 1-3 The invention illustrates a novel scraper arm bushing suitable for sheet metal of varying thicknesses. It is fitted around the outer periphery of a scraper arm shaft 1 and mates with a waterproof cover 2. The bushing includes a scraper arm bushing body 3, on which an axially adjustable connecting structure 4 is provided. The waterproof cover 2 is connected to the outer periphery of the scraper arm bushing body 3 via the axially adjustable connecting structure 4. After the scraper arm shaft 1 and the scraper arm bushing body 3 are assembled into a single component, the waterproof cover 2 is fitted around the outer periphery of the scraper arm bushing body 3. The axial position of the waterproof cover 2 is adjusted via the axially adjustable connecting structure 4 according to different sheet metal thicknesses, achieving a tight fit between the waterproof cover 2 and the sheet metal. Therefore, this invention is adaptable to sheet metal of different thicknesses (e.g., 1.5mm for civilian vehicles and 5.5mm for military vehicles), reducing the number of molds, lowering costs, and improving production efficiency.

[0027] As attached Figures 1-3 As shown, the axially adjustable connection structure 4 includes at least two grooves 5 distributed axially on the outer wall of the scraper arm bushing body 3, and the waterproof cover 2 is provided with a protrusion 6 for engaging with one of the grooves 5. The scraper arm bushing body 3 and the waterproof cover 2 adopt a concave-convex fit, that is, multiple grooves 5 are distributed axially on the outer wall of the scraper arm bushing body 3, and the waterproof cover 2 is engaged in the corresponding groove 5 of the scraper arm bushing body 3 to achieve the adjustment of the position of the waterproof cover 2, thereby achieving the purpose of tightly fitting with the sheet metal body.

[0028] In this embodiment, as shown in the appendix Figure 1As shown, the groove 5 is annular in shape. This is the first configuration of the groove 5, which can be obtained through machining and is very convenient to process.

[0029] More specifically, in this embodiment, there are two annular grooves 5, which are axially arranged on the outer wall of the wall-mounted bushing body. That is, the positions of the two grooves 5 are determined according to the sheet metal thickness of civilian vehicles and military vehicles.

[0030] Alternatively, the groove 5 can also be cylindrical, i.e., a circular, square, or other polygonal groove structure. This is a second configuration of the groove 5, allowing for product structure diversity and adaptability to different waterproof covers 2.

[0031] Similarly, the axially adjustable connection structure 4 includes at least two protrusions distributed axially on the outer wall of the scraper arm bushing body 3, and the waterproof cover 2 is provided with a recess for engaging with one of the grooves 5, that is, the protrusion-recession structure between the scraper arm bushing body 3 and the waterproof cover 2 can be interchanged. This is another way of setting the protrusion-recession structure.

[0032] As attached Figure 2 As shown, the inner edge of the upper end of the scraper arm bushing body 3 is provided with an annular sealing groove 7 for the embedding of the sealing ring 8. During actual assembly, the sealing ring 8 is placed in the annular sealing groove 7, with its inner circular surface tightly fitted to the outer circular surface of the scraper arm shaft 1, and its outer circular surface fitted to the circumferential surface of the annular sealing groove 7. A retaining ring 9 is snapped onto the scraper arm shaft 1, and the retaining ring 9 presses against the flat washer 10, which in turn presses the sealing ring 8 firmly into the sealing groove. This design ensures the sealing between the crank arm shaft and the scraper arm bushing body 3, preventing water from passing through the gap between them, and thus preventing water from seeping into the cab through the sheet metal holes and wetting the cab instruments.

[0033] In addition, the aforementioned axially adjustable structure can also adopt a threaded structure to achieve axial adjustment of the waterproof cover 2.

Claims

1. A novel scraper arm bushing for sheet metal of different thicknesses, used to fit around the scraper arm shaft (1) and cooperate with the waterproof cover (2), characterized in that: The scraper arm bushing body (3) is provided with an axially adjustable connection structure (4), and the waterproof cover (2) is connected to the outer periphery of the scraper arm bushing body (3) through the axially adjustable connection structure (4). The axially adjustable connection structure (4) includes at least two grooves (5) distributed axially on the outer wall of the scraper arm bushing body (3), and the waterproof cover (2) is provided with a protrusion (6) for engaging with one of the grooves (5).

2. The novel scraper arm bushing according to claim 1, which satisfies different thicknesses of car body sheet metal, is characterized in that: The groove (5) is annular in shape.

3. A novel scraper arm bushing according to claim 1, suitable for sheet metal of different thicknesses, characterized in that: The groove (5) is cylindrical in shape.

4. A novel scraper arm bushing according to claim 1 for meeting the needs of sheet metal bodies of different thicknesses, characterized in that: The axially adjustable connection structure (4) includes at least two protrusions distributed axially on the outer wall of the scraper bushing body (3), and the waterproof cover (2) is provided with a recess for fitting into one of the grooves (5).

5. A novel scraper arm bushing according to claim 1, characterized in that: The scraper bushing body (3) has an annular sealing groove (7) at the inner edge of the upper end for the sealing ring (8) to be embedded.

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