Sealing block and nylon pipe quick connector one-way valve for automobile

Abstract

The invention discloses a sealing block and a nylon pipe quick connector one-way valve for an automobile, and relates to the technical field of automobile parts, the sealing block comprises a cylindrical body, one end of the body is a sealing end, the center of the end face of the sealing end is sunken inwards to form a sunken part, and the edge of the sunken part protrudes outwards to form a sealing ring; the other end face of the body is a ventilation end, a ventilation groove is formed in the end face of the ventilation end, and a plurality of ventilation channels communicated with the ventilation groove are formed in the outer side wall of the body. The sealing block assembly structure is simple, the production cost is low, the function of the one-way valve can be achieved only by placing the sealing block in the quick plug, and the one-way valve is suitable for the automobile gas circuit environment with the strict requirements for the sealing performance, the pressure resistance, the temperature adaptability and the long-term reliability.

Description

Technical Field

[0001] This invention relates to the field of automotive parts technology, specifically a sealing block and a one-way valve for quick-connect nylon tubing in automobiles. Background Technology

[0002] In automotive nylon tubing pneumatic systems, traditional check valves are mostly civilian-grade versions. These valves are typically designed for low-pressure environments such as solenoid valves, cylinders, and air conditioning units, and their performance specifications are insufficient to meet the higher requirements of automotive pneumatic systems. Civilian quick-connect check valves have the following limitations: lower pressure resistance, unable to withstand the high pressure fluctuations that may occur in automotive pneumatic systems; insufficient airtightness maintenance; and a narrow temperature adaptability range, unable to reliably cover the extreme high and low temperature conditions that may occur during vehicle operation. Furthermore, their durability and sealing stability under repeated opening and closing conditions may be insufficient. Therefore, these civilian check valves are not suitable for automotive pneumatic environments with more stringent requirements for sealing, pressure resistance, temperature adaptability, and long-term reliability. Summary of the Invention

[0003] To address the shortcomings of existing technologies, the present invention aims to provide a sealing block and a one-way valve for automotive nylon tubing quick-connect fittings. The sealing block has a simple assembly structure and low production cost. The one-way valve function can be achieved simply by placing the sealing block in the quick-connect fitting. It is suitable for automotive air circuit environments with more stringent requirements for sealing performance, pressure resistance, temperature adaptability, and long-term reliability.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a sealing block, comprising a cylindrical body, one end of the body being a sealing end, and the center of the end face of the sealing end being recessed inward to form a recessed portion, the edge of the recessed portion being protruding outward to form a sealing ring; the other end face of the body being a venting end, and the end face of the venting end being provided with a venting groove, and the outer side wall of the body being provided with a plurality of venting channels communicating with the venting groove.

[0005] A further improvement is that the vent end of the main body protrudes outward to form a circular boss, and a limiting step is formed between the circular boss and the main body.

[0006] A further improvement is that the ventilation groove is cross-shaped; and four ventilation channels are provided, which are respectively connected to the four ends of the ventilation groove.

[0007] A further improvement is that the sealing block is made of hydrogenated rubber material.

[0008] A further improvement is that the sealing block can withstand temperatures ranging from -40℃ to 120℃.

[0009] A further improvement is that the pressure resistance range of the sealing block is 5.5MPa~8MPa.

[0010] The present invention also provides a one-way valve for quick-connect nylon tubing connectors for automobiles, comprising a valve body, characterized in that: an installation space is provided within the valve body, and an air inlet and an air outlet are respectively provided at both ends of the installation space; a sealing block as described above is slidably disposed within the installation space; when the sealing block slides to the air inlet, the sealing end of the sealing block abuts and closes the air inlet; when the sealing block slides to the air outlet, the venting end of the sealing block abuts the air outlet, and the gas input through the air inlet passes through the venting channel and the venting groove in sequence before being discharged from the air outlet.

[0011] Further improvements include: the valve body can be a butt joint structure, a straight-through structure, a bend structure, a T-type tee structure, or an F-type tee structure.

[0012] A further improvement is that the air outlet of the installation space is provided with a cylindrical mounting base, the circular boss of the sealing block is inserted into the mounting base, and the limiting step abuts against the mounting base.

[0013] The beneficial effects of the present invention are: 1. In this invention, the sealing block assembly structure is simple and the production cost is low. The one-way valve function can be realized simply by placing the sealing block in the quick insert.

[0014] 2. In this invention, the sealing block has good fatigue resistance, long service life, wide range of high and low temperature resistance, and high pressure resistance.

[0015] 3. In this invention, the sealing block has wide applicability and can be applied to quick-connect fittings, straight quick-connect fittings, bend quick-connect fittings, tee quick-connect fittings, four-way quick-connect fittings, etc. Attached Figure Description

[0016] Figure 1 This is a perspective view of the sealing block in Embodiment 1 of the present invention; Figure 2 This is a perspective view of the sealing block from the other side in Embodiment 1 of the present invention; Figure 3 This is a front view of the sealing block in Embodiment 1 of the present invention; Figure 4 This is a top view of the sealing block in Embodiment 1 of the present invention; Figure 5 This is a cross-sectional view of the sealing block in Embodiment 1 of the present invention; Figure 6 This is a perspective view of the one-way valve for quick-connect nylon tubing in automotive applications according to Embodiment 1 of the present invention; Figure 7 This is a cross-sectional view of the one-way valve for the quick-connect nylon tube connector in an automotive application according to Embodiment 1 of the present invention; Figure 8 This is a perspective view of the one-way valve for quick-connect nylon tubing in automotive applications according to Embodiment 2 of the present invention; Figure 9This is a cross-sectional view of the one-way valve for the quick-connect nylon tube of an automobile in Embodiment 2 of the present invention; Figure 10 This is a perspective view of the one-way valve for the quick-connect nylon tube connector for automobiles in Embodiment 3 of the present invention; Figure 11 This is a cross-sectional view of the one-way valve for the quick-connect nylon tube of an automobile in Embodiment 3 of the present invention; Figure 12 This is a perspective view of the one-way valve for quick-connect nylon tubing in automotive applications according to Embodiment 4 of the present invention; Figure 13 This is a cross-sectional view of the one-way valve for the quick-connect nylon tube of an automobile in Embodiment 4 of the present invention; Figure 14 This is a perspective view of the one-way valve for the quick-connect nylon tube connector for automobiles in Embodiment 5 of the present invention; Figure 15 This is a cross-sectional view of the one-way valve for the quick-connect nylon tube connector for automobiles in Embodiment 5 of the present invention; Figure 16 This is a perspective view of the one-way valve for the quick-connect nylon tube connector for automobiles in Embodiment Six of the present invention; Figure 17 This is a cross-sectional view of the one-way valve for automotive nylon tubing quick-connect fittings in Embodiment Six of the present invention.

[0017] Figure label: 1-Sealing block; 11-Body; 12-Circular boss; 13-Limiting step; 14-Ventilation groove; 15-Ventilation channel; 16-Recess; 17-Sealing ring; 2-Valve body; 21-Installation space; 22-Inlet; 23-Outlet; 24-Mounting base. Detailed Implementation

[0018] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout.

[0019] In the description of this invention, it should be noted that the directional terms such as "center", "lateral (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this invention.

[0020] The following description, in conjunction with the accompanying drawings, further illustrates specific embodiments of the present invention, making the technical solution and its beneficial effects clearer and more explicit. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the invention. Example 1

[0021] See also Figures 1-5 As shown, this embodiment of the invention provides a sealing block, including a cylindrical body 11. One end of the body 11 is a sealing end, and the center of the sealing end face is recessed inward to form a recessed portion 16, the edge of the recessed portion 16 protrudes outward to form a sealing ring 17; the other end face of the body 11 is a venting end, and the venting end face is provided with a venting groove 14. The outer side wall of the body 11 is provided with a plurality of venting channels 15 communicating with the venting groove 14. Specifically, the venting end of the body 11 protrudes outward to form a circular boss 12, and a limiting step 13 is formed between the circular boss 12 and the body 11. In this embodiment, the venting groove 14 is cross-shaped; four venting channels 15 are provided, respectively communicating with the four ends of the venting groove 14. The sealing block 1 is made of hydrogenated rubber material. The temperature range that the sealing block 1 can withstand is -40℃ to 120℃. The pressure range that the sealing block 1 can withstand is 5.5MPa to 8MPa.

[0022] See also Figures 6-7 As shown, this embodiment of the invention also provides a one-way valve for a quick-connect nylon tube in an automotive application, comprising a valve body 2, an installation space 21 within the valve body 2, and an air inlet 22 and an air outlet 23 respectively at both ends of the installation space 21; a sealing block 1 as described above is slidably disposed within the installation space 21; when the sealing block 1 slides to the air inlet 22, the sealing end of the sealing block 1 abuts and seals the air inlet 22; when the sealing block 1 slides to the air outlet 23, the venting end of the sealing block 1 abuts the air outlet 23, and the gas input through the air inlet 22 passes sequentially through the venting channel 15 and the venting groove 14 before being discharged from the air outlet 23. In this embodiment, the valve body 2 has a butt joint structure. Example 2

[0023] See also Figures 8-9 As shown, the structure of this embodiment is basically the same as that of Embodiment 1. The difference is that in this embodiment, the valve body 2 is a straight-through structure. Example 3

[0024] See also Figures 10-11 As shown, the structure of this embodiment is basically the same as that of embodiment two. The difference is that in this embodiment, the air outlet 23 of the installation space 21 is provided with a cylindrical mounting base 24, the circular boss 12 of the sealing block 1 is inserted into the mounting base 24, and the limiting step 13 abuts against the mounting base 24. Example 4

[0025] See also Figures 12-13 As shown, the structure of this embodiment is basically the same as that of embodiment three. The difference is that in this embodiment, the valve body 2 is a bend structure. Example 5

[0026] See also Figures 14-15 As shown, the structure of this embodiment is basically the same as that of embodiment three. The difference is that in this embodiment, the valve body 2 is a T-shaped three-way structure. Example 6

[0027] See also Figures 16-17 As shown, the structure of this embodiment is basically the same as that of embodiment three. The difference is that in this embodiment, the valve body 2 is an F-type three-way structure.

[0028] In the description of this specification, references to terms such as "an embodiment," "preferred," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. Illustrative expressions of the above terms in this specification do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0029] Based on the above description of the structure and principle, those skilled in the art should understand that the present invention is not limited to the specific embodiments described above. Improvements and substitutions made using techniques known in the art based on the present invention all fall within the protection scope of the present invention and should be defined by the claims.

Claims

1. A sealing block comprising a cylindrical body (11), characterized in that: One end of the body (11) is a sealing end, and the center of the end face of the sealing end is recessed inward to form a recess (16), and the edge of the recess (16) protrudes outward to form a sealing ring (17); the other end face of the body (11) is a ventilation end, and the end face of the ventilation end is provided with a ventilation groove (14), and the outer side wall of the body (11) is provided with a plurality of ventilation channels (15) communicating with the ventilation groove (14).

2. The sealing block according to claim 1, characterized in that: The ventilation end of the body (11) protrudes outward to form a circular boss (12), and a limiting step (13) is formed between the circular boss (12) and the body (11).

3. The sealing block according to claim 1, characterized in that: The ventilation groove (14) is cross-shaped; the ventilation channel (15) is provided in four places, which are respectively connected to the four ends of the ventilation groove (14).

4. The sealing block according to claim 1, characterized in that: The sealing block (1) is made of hydrogenated rubber material.

5. The sealing block according to claim 1, characterized in that: The sealing block (1) has a temperature range of -40℃ to 120℃.

6. The sealing block according to claim 1, characterized in that: The pressure resistance range of the sealing block (1) is 5.5MPa~8MPa.

7. A one-way valve for a nylon tube quick-connect fitting for automobiles, comprising a valve body (2), characterized in that: The valve body (2) is provided with an installation space (21), and an air inlet (22) and an air outlet (23) are respectively provided at both ends of the installation space (21); a sealing block (1) as described in any one of claims 1 to 6 is slidably provided in the installation space (21); when the sealing block (1) slides to the air inlet (22), the sealing end of the sealing block (1) is attached to and closes the air inlet (22); when the sealing block (1) slides to the air outlet (23), the venting end of the sealing block (1) is attached to the air outlet (23), and the gas input from the air inlet (22) passes through the venting channel (15) and the venting groove (14) in sequence and is discharged from the air outlet (23).

8. The one-way valve for automotive nylon tubing quick-connect fittings according to claim 7, characterized in that: The valve body (2) is a butt structure, a straight structure, a bend structure, a T-type tee structure or an F-type tee structure.

9. The one-way valve for automotive nylon tubing quick-connect fittings according to claim 7, characterized in that: The air outlet (23) of the installation space (21) is provided with a cylindrical mounting base (24), the circular boss (12) of the sealing block (1) is inserted into the mounting base (24), and the limiting step (13) abuts against the mounting base (24).

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