New anti-residual oil and gas cavity

Abstract

The present invention discloses a novel residual oil-preventing air chamber, comprising an air chamber body, an air inlet, an oil reservoir opening, and a sealing ring. The air chamber body is characterized by having an air inlet radially extending from the air chamber body and an oil reservoir opening axially extending from the air chamber body. The air inlet on the air chamber inner wall is vertically positioned lower than the oil reservoir opening on the air chamber body. The sealing ring is embedded within the air chamber body, and the air inlet is a Z-shaped structure. This novel residual oil-preventing air chamber solves the technical problems of poor production quality and low production efficiency in the prior art.

Description

Technical Field

[0001] The invention relates to the field of shock absorber production, and in particular to a novel residual oil and gas cavity. Background Art

[0002] The automatic production line of rear shock absorbers uses pneumatic spot riveting, which has good error-proofing and recognition capabilities. However, the pneumatic spot riveting equipment often produces serious excess oil problems.

[0003] The main reason for the residual oil in the shock absorber of the existing technology is that the air inlet of the original equipment is just at the mouth of the oil storage cylinder. During inflation, since a part of the air inlet of the air cavity is higher than the mouth of the oil storage cylinder, the horizontal gas flow rate at the mouth of the oil storage cylinder is relatively fast during the inflation process, forming a pressure difference, causing the oil in the cylinder to be blown out of the cylinder. The oil adheres to the oil storage cylinder to form residual oil. The residual oil remains and accumulates inside the equipment tooling, which will cause residual oil in the product batch. Too much residual oil will cause customer complaints, and in severe cases, it will be misjudged as an oil leak (a defect has occurred). The production line needs to arrange special personnel to wipe it, affecting the efficiency of the production line and increasing costs. Summary of the Invention

[0004] The purpose of the present invention is to provide a novel residual oil-proof gas cavity to solve the technical problem in the prior art that residual oil is generated, resulting in poor production quality and low production efficiency.

[0005] To achieve the above-mentioned purpose, the present invention provides a new type of anti-residual oil air cavity, including an air cavity body, an air inlet, an oil storage cylinder mouth and a sealing ring, characterized in that the air cavity body is provided with an air inlet in the radial direction, the air cavity body is provided with an oil storage cylinder mouth in the axial direction, and the air inlet on the inner wall of the air cavity is lower than the oil storage cylinder mouth in the vertical position on the air cavity body; the sealing ring is embedded in the interior of the air cavity body.

[0006] Furthermore, the air inlet has a "Z"-shaped structure, and the path of the air inlet is divided into a first transverse air cavity, a second transverse air cavity and a longitudinal air cavity.

[0007] Furthermore, the first transverse air cavity does not penetrate the air cavity body starting from the outer wall, the second transverse air cavity is located at the lower end of the first transverse air cavity, and the second transverse air cavity penetrates the inner wall of the air cavity body starting from the outer wall. The longitudinal air cavity is used to connect the first transverse air cavity and the second transverse cavity, and the longitudinal air cavity penetrates the top of the air cavity body.

[0008] Furthermore, the outlet height of the second transverse air cavity is lower than the height of the top positioning step surface of the oil storage cylinder opening.

[0009] Furthermore, a cylindrical pin is inserted into the entrance of the outer wall of the second transverse air cavity, and a cylindrical pin is inserted into the top of the longitudinal air cavity.

[0010] Furthermore, the oil storage opening is opened at the bottom of the air cavity body.

[0011] Furthermore, the sealing ring is a Y-shaped sealing ring, the sealing ring is located on the inner side of the oil storage cylinder mouth, and the sealing ring is located at the lower end of the second transverse air cavity.

[0012] Furthermore, a rivet head positioning hole and a side wall optical fiber mounting hole are provided on the radial side wall of the air cavity body, a rivet head is arranged in the rivet head positioning hole, and the height of the rivet head positioning hole is higher than the oil storage cylinder mouth (3).

[0013] Based on the above technical solution, the present invention can produce the following beneficial effects:

[0014] The novel anti-residual oil air cavity provided by the present invention avoids the air inlet hole and the oil storage cylinder mouth of the air cavity, the height of the air inlet hole is lower than the oil storage cylinder mouth, a hole is drilled on the basis of the original air cavity, and a cylindrical pin is used to interference fit to block the processed hole, thereby ensuring the sealing of the air inlet hole of the air cavity, making the air inlet hole "Z"-shaped, changing the air intake path of the air cavity, and having an obvious improvement effect. There is basically no residual oil after use, which greatly improves the product quality. A groove is opened below the annular groove on the inner wall of the air cavity for installing the sealing ring, which is convenient for installing and replacing the Y-shaped sealing ring. In addition, no new equipment is replaced, and the need for a dedicated person to wipe the residual oil is eliminated, thereby reducing costs and being economical. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of an embodiment of the present invention Figure 1 ;

[0016] Figure 2 This is a schematic diagram of the structure of an embodiment of the present invention Figure 2 ;

[0017] In the figure: 1. Air cavity body; 2. Air inlet; 201. First transverse air cavity; 202. Second transverse air cavity; 203. Longitudinal air cavity; 3. Oil storage cylinder opening; 4. Sealing ring; 5. Cylindrical pin; 6. Rivet head positioning hole; 7. Optical fiber mounting hole. DETAILED DESCRIPTION

[0018] In order to better understand the purpose, structure and function of the present invention, the novel anti-residual oil and gas cavity of the present invention is further described in detail below with reference to the accompanying drawings.

[0019] In the description of the present invention, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer" and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of the present invention and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0020] like Figure 1-Figure 2 As shown, the new type of anti-residual oil air cavity provided by the present invention includes an air cavity body 1, an air inlet hole 2, an oil storage cylinder mouth 3 and a sealing ring 4, and is characterized in that the air cavity body 1 is radially provided with an air inlet hole 2, the air cavity body 1 is axially provided with an oil storage cylinder mouth 3, and the air inlet hole 2 on the inner wall of the air cavity is lower than the oil storage cylinder mouth 3 in the vertical position on the air cavity body 1; the sealing ring 4 is embedded in the interior of the air cavity body 1.

[0021] The air inlet 2 is a “Z”-shaped structure, and the path of the air inlet 2 is divided into a first transverse air cavity 201 , a second transverse air cavity 202 and a longitudinal air cavity 203 .

[0022] The first transverse air cavity 201 passes through half of the side wall of the air cavity body 1, the second transverse air cavity 202 is located at the lower end of the first transverse air cavity 201, the second transverse air cavity 202 passes through the outer wall of the air cavity body 1, and the longitudinal air cavity 203 is connected to the end of the first transverse air cavity 201. The longitudinal air cavity 203 connects the first transverse cavity 201 and the second transverse cavity 202, and the longitudinal air cavity 203 passes through the top of the air cavity body 1.

[0023] The outlet height of the second transverse air cavity 202 is lower than the height of the top outlet of the oil storage cylinder mouth 3 .

[0024] A cylindrical pin 5 is inserted into the entrance of the second transverse air cavity 202 , and a cylindrical pin 5 is inserted into the top of the longitudinal air cavity 203 .

[0025] The oil storage opening 3 is opened at the bottom of the air cavity body 1 .

[0026] The sealing ring 4 is a Y-shaped sealing ring. The sealing ring 4 is located inside the oil storage cylinder opening 3 and at the lower end of the second transverse air cavity 202 .

[0027] The radial side wall of the air cavity body 1 is also provided with a rivet head positioning hole 6 and a side wall optical fiber mounting hole 7. A rivet head is set in the rivet head positioning hole 6. The height of the rivet head positioning hole 6 is higher than the rivet head positioning hole 6. The height of the rivet head positioning hole 6 is consistent with the height of the top outlet of the oil storage cylinder mouth 3.

[0028] The specific operating principle of the present invention is:

[0029] In order to solve the problem of residual oil, based on the cause of the residual oil, the positions of the air inlet 2 and the oil storage cylinder mouth 3 opened on the air cavity body 1 are avoided, so that the height of the air inlet 2 is lower than the height of the oil storage cylinder mouth 3.

[0030] The redundant processed holes are blocked with cylindrical pins 5 to ensure the sealing of the air inlet hole 2, so that the air inlet hole 2 is in a "Z" shape, thereby changing the air inlet path of the air cavity.

[0031] An oil storage hole 3 is provided at the bottom of the air cavity body 1, and a groove is provided at the lower part of the inner hole to facilitate the installation and replacement of the sealing ring 4.

[0032] It will be appreciated that the present invention has been described with reference to certain embodiments, and those skilled in the art will appreciate that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. Furthermore, under the teachings of the present invention, these features and embodiments may be modified to suit specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are intended to be protected by the present invention.

Claims

1. An anti-residual oil air chamber for shock absorber production, comprising an air chamber body (1), an air inlet (2), an oil storage cylinder port (3) and a sealing ring (4), characterized in that: The air cavity body (1) is provided with an air inlet hole (2) in the radial direction, and an oil storage cylinder opening (3) in the axial direction. The air inlet hole (2) is located vertically on the air cavity body (1) at a position lower than the oil storage cylinder opening (3). The sealing ring (4) is embedded in the air cavity body (1). The air inlet (2) is a "Z"-shaped structure, and the path of the air inlet (2) is divided into a first transverse air cavity (201), a second transverse air cavity (202), and a longitudinal air cavity (203); The oil storage opening (3) is provided at the bottom of the air cavity body (1); The radial side wall of the air cavity body (1) is further provided with a rivet head positioning hole (6) and a side wall optical fiber mounting hole (7). A rivet head is arranged in the rivet head positioning hole (6). The height of the rivet head positioning hole (6) is higher than the oil storage cylinder opening (3).

2. The residual oil and gas cavity according to claim 1, characterized in that: The first transverse air cavity (201) passes through half of the side wall of the air cavity body (1); the second transverse air cavity (202) is located at the lower end of the first transverse air cavity (201); the second transverse air cavity (202) passes through the side wall of the air cavity body (1); the longitudinal air cavity (203) is connected to the end of the first transverse air cavity (201); the longitudinal air cavity (203) communicates with the first transverse air cavity (201) and the second transverse air cavity (202); and the longitudinal air cavity (203) passes through the top of the air cavity body (1).

3. The residual oil and gas cavity according to claim 1, characterized in that: The outlet height of the second transverse air cavity (202) is lower than the height of the top positioning step surface of the oil storage cylinder mouth (3).

4. The residual oil and gas cavity according to claim 2, characterized in that: A cylindrical pin (5) is inserted into the entrance of the second transverse air cavity (202), and a cylindrical pin (5) is inserted into the top of the longitudinal air cavity (203).

5. The residual oil and gas cavity according to claim 1, characterized in that: The sealing ring (4) is a Y-shaped sealing ring. The sealing ring (4) is located inside the oil storage cylinder opening (3). The sealing ring (4) is located at the lower end of the second transverse air cavity (202).

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