One-way piston of inflator

Abstract

The utility model provides a one-way piston of an inflator, which relates to the technical field of inflating devices and comprises a piston body, a baffle is mounted on the piston body, a mounting seat is mounted at the bottom end of the piston body, a rubber cup is movably mounted between the baffle and the mounting seat, an adjusting seat is movably mounted on the mounting seat, and the adjusting seat is movably mounted on the piston body. And the top end of the adjusting seat is embedded into the inner side of the bottom end of the rubber cup. The top end of the adjusting seat is embedded into the inner hole of the rubber bowl by rotating the adjusting seat, so that the inner part and the periphery of the rubber bowl are expanded, the distance between the periphery of the rubber bowl and the barrel body is reduced, the inflating sealing performance is improved, the maintenance frequency is reduced, and the use cost is reduced.

Description

Technical Field

[0001] This utility model belongs to the technical field of inflation devices, and more specifically, it relates to a one-way piston of an air pump. Background Technology

[0002] A one-way piston on an air pump is a common mechanical component used to control the direction of airflow. Its function is to ensure that air flows in only one direction, drawing air in from the pump and delivering it to the target object (such as a tire, ball, etc.) during the pumping process.

[0003] Based on the above, the inventors have discovered the following problems: In the use of existing air pump one-way pistons, due to long-term friction between the rubber cup on the one-way piston and the cylinder body, the surface of the rubber cup is worn, resulting in poor sealing during air pumping, which reduces the air pumping efficiency. The contact distance between the rubber cup and the cylinder body cannot be adjusted, and maintenance and replacement will increase additional usage costs.

[0004] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings, and provided a one-way piston for the air pump in order to achieve a more practical purpose. Utility Model Content

[0005] The purpose and function of the one-way piston in this air pump are achieved by the following specific technical means:

[0006] An air pump has a one-way piston, including a piston body, a baffle mounted on the piston body, a mounting seat mounted on the bottom end of the piston body, a rubber cup movably mounted between the baffle and the mounting seat, and an adjusting seat movably mounted on the mounting seat, the top of the adjusting seat being embedded inside the bottom end of the rubber cup.

[0007] Furthermore, the adjustment seat includes an arc-shaped area and a rotating area, and the outer diameter of the arc-shaped area decreases sequentially from the rotating area side to the rubber cup side.

[0008] Furthermore, the bottom periphery of the rubber cup expands outward, and the rubber cup is fitted around the mounting base.

[0009] Furthermore, the inner hole of the adjusting seat is provided with an internal thread, and the periphery of the mounting seat is provided with an external thread, wherein the internal thread and the external thread are screwed together.

[0010] Furthermore, several reinforcing plates are installed between the outer periphery of the piston body and the baffle.

[0011] Furthermore, the piston body is provided with an internal thread two, and the piston body is screwed into the outer thread of the pull rod through the internal thread two.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] By rotating the adjusting seat so that its top is inserted into the inner hole of the rubber cup, the inside of the rubber cup expands and the outside expands, reducing the gap between the outer edge of the rubber cup and the cylinder, improving the air sealing performance, reducing the number of maintenance times, and lowering the operating cost.

[0014] The outer diameter of the curved area decreases sequentially from the rotating area to the rubber cup. The more the curved area is embedded into the inner hole of the rubber cup, the greater the internal expansion of the rubber cup and the greater the external expansion. This can be adjusted according to the required distance between the rubber cup and the cylinder, reducing the cost of use and improving practicality.

[0015] The internal thread on the adjusting seat engages with the external thread on the mounting seat, making it easy for people to rotate the adjusting seat. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of the one-way piston of the air pump of this utility model.

[0017] Figure 2 This is a top view schematic diagram of the one-way piston of the air pump of this utility model.

[0018] Figure 3 This is a schematic diagram of the explosion of the one-way piston of the air pump of this utility model.

[0019] Figure 4 This is a cross-sectional schematic diagram of the one-way piston adjustment seat of the air pump of this utility model.

[0020] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0021] 1. Piston body; 2. Baffle; 3. Mounting seat; 4. Rubber cup; 5. Reinforcing plate; 6. Adjusting seat; 7. Arc area; 8. Rotation area; 9. Internal thread one; 10. External thread; 11. Internal thread two. Detailed Implementation

[0022] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0023] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model 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, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] Example:

[0026] As attached Figure 1 To be continued Figure 4 As shown:

[0027] This utility model provides a one-way piston for an air pump, including a piston body 1, a baffle 2 mounted on the piston body 1, and a mounting seat 3 mounted on the bottom end of the piston body 1. A rubber cup 4 is movably mounted between the baffle 2 and the mounting seat 3. An adjusting seat 6 is movably mounted on the mounting seat 3. The top end of the adjusting seat 6 is embedded inside the bottom end of the rubber cup 4. By rotating the adjusting seat 6, its top end is embedded inside the inner hole of the rubber cup 4, causing the inside of the rubber cup 4 to expand and the outside to expand, reducing the distance between the outside of the rubber cup 4 and the cylinder body, improving the air pump sealing performance, reducing the number of maintenance times, and lowering the usage cost.

[0028] The adjusting seat 6 includes an arc-shaped area 7 and a rotating area 8. The outer diameter of the arc-shaped area 7 gradually decreases from the rotating area 8 towards the rubber cup 4. The more the arc-shaped area 7 is embedded into the inner hole of the rubber cup 4, the greater the internal expansion of the rubber cup 4 and the greater the outer expansion. This allows for adjustment based on the required distance between the rubber cup 4 and the cylinder, reducing usage costs and improving practicality.

[0029] The bottom periphery of the rubber cup 4 expands outward, and the rubber cup 4 is fitted around the mounting base 3.

[0030] The inner hole of the adjusting seat 6 is provided with an internal thread 9, and the outer periphery of the mounting seat 3 is provided with an external thread 10. The internal thread 9 and the external thread 10 are screwed together, which facilitates the rotation of the adjusting seat 6.

[0031] Among them, a number of reinforcing plates 5 are installed between the outer periphery of the piston body 1 and the baffle 2.

[0032] The piston body 1 is provided with an internal thread 11, and the piston body 1 is screwed into the outer thread of the pull rod through the internal thread 11.

[0033] The specific usage and function of this embodiment are as follows:

[0034] First, check the integrity of the device. Only use it after confirming it is correct. During use, first connect the piston body 1 to the outer thread of the pull rod via the internal thread 11. Then, fit the rubber cup 4 onto the outer edge of the mounting base 3 and screw on the adjusting seat 6. After the rubber cup 4 wears due to friction with the cylinder, the internal thread 9 on the adjusting seat 6 engages with the external thread 10 on the mounting base 3. Rotate the adjusting seat 6 so that its top is embedded in the inner hole of the rubber cup 4. The outer diameter of the arc-shaped area 7 decreases sequentially from the rotating area 8 towards the rubber cup 4. The more the arc-shaped area 7 is embedded into the inner hole of the rubber cup 4, the greater the internal expansion and outer expansion of the rubber cup 4. This internal expansion and outer expansion reduce the distance between the rubber cup 4 and the cylinder, improving the air sealing, reducing maintenance frequency, and lowering operating costs. The distance between the rubber cup 4 and the cylinder can be adjusted according to the required distance, improving practicality. This device has a novel overall design and simple structure, making it worthy of widespread promotion and use.

[0035] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A one-way piston for an air pump, comprising a piston body (1), characterized in that: A baffle (2) is installed on the piston body (1), and a mounting seat (3) is installed at the bottom end of the piston body (1). A rubber cup (4) is movably installed between the baffle (2) and the mounting seat (3). An adjusting seat (6) is movably installed on the mounting seat (3), and the top of the adjusting seat (6) is embedded in the inner side of the bottom end of the rubber cup (4).

2. The one-way piston of the air pump as described in claim 1, characterized in that: The adjustment seat (6) includes an arc area (7) and a rotation area (8). The outer diameter of the arc area (7) decreases sequentially from the rotation area (8) to the rubber cup (4).

3. The one-way piston of the air pump as described in claim 2, characterized in that: The bottom periphery of the rubber cup (4) expands outward, and the rubber cup (4) is fitted around the mounting base (3).

4. The one-way piston of the air pump as described in claim 3, characterized in that: The inner hole of the adjusting seat (6) is provided with an internal thread (9), and the outer periphery of the mounting seat (3) is provided with an external thread (10). The internal thread (9) and the external thread (10) are screwed together.

5. The one-way piston of the air pump as described in claim 4, characterized in that: Several reinforcing plates (5) are installed between the outer periphery of the piston body (1) and the baffle (2).

6. The one-way piston of the air pump as described in claim 1, characterized in that: The piston body (1) is provided with an internal thread (11), and the piston body (1) is connected to the outer thread of the pull rod by the internal thread (11).

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