An integrated inflation and pressure maintenance interface

Abstract

The application relates to an integrated inflation and pressure maintaining interface, which comprises an air pump, a rotating switching mechanism and an air inlet and outlet port, the air inlet and outlet ports on the two sides of the air pump are connected to the rotating switching mechanism through pipelines, the rotating switching mechanism comprises a fixed shell, a driving mechanism and a rotating block, the driving mechanism is arranged at the bottom of the fixed shell, the rotating block is rotatably arranged in the fixed shell, the output end of the driving mechanism is in transmission connection with the center hole of the rotating block, and the two sides of the rotating block are respectively provided with a first air guide hole and a second air guide hole. In the embodiment provided by the application, the rotating block is driven to rotate by the driving mechanism, so that the positions of the first air guide hole and the second air guide hole are exchanged, the air paths of the air inlet and outlet ports of the air pump are switched through the first air guide hole and the second air guide hole, the rapid switching of the two states of inflation and pressure increase and deflation and pressure release is realized, the operation is simplified, the user is convenient to use, and the use experience of the user is improved.

Description

Technical Field

[0001] This application relates to the field of vehicle-mounted air pump technology, and in particular to an integrated inflation / deflation and pressure-holding interface. Background Technology

[0002] When using bicycles, motorcycles, cars, and other vehicles, electric air pumps are typically used to inflate tires to avoid low tire pressure affecting driving. Conversely, when tire pressure is too high, it's necessary to deflate the tires. Some existing electric air pumps have both inflator and deflation functions, allowing you to inflate tires when the pressure is low using the inflation port or deflate them when the pressure is high using the deflation port.

[0003] However, in existing technology, the inflation port and deflation port of an electric air pump are two separate ports, and the two ports are basically the same in shape and structure. Therefore, when users want to use an electric air pump to inflate or deflate, they need to distinguish between the inflation port and the deflation port. If the wrong port is connected, the air hose needs to be unplugged and reconnected to the corresponding port, which brings inconvenience to users. Utility Model Content

[0004] This application provides an integrated inflation / deflation and pressure holding interface to solve the problem in the prior art where inflation and deflation ports need to be set separately on the electric air pump, which makes it impossible for users to quickly identify and switch the access port type during use, thus affecting the user experience.

[0005] In a first aspect, this application provides an integrated inflation / deflation and pressure holding interface, comprising: an air pump, a rotary switching mechanism, and an inlet / outlet port, wherein:

[0006] An air pump has air inlets and outlets on both sides connected to a rotary switching mechanism via pipes. The pipes are symmetrically arranged on both sides of the rotary switching mechanism about the central axis of the rotary switching mechanism.

[0007] The rotating switching mechanism includes: a fixed housing, a drive mechanism, and a rotating block. The drive mechanism is located at the bottom of the fixed housing, and the rotating block is rotatably located inside the fixed housing. The output end of the drive mechanism is connected to the central hole of the rotating block. A first air guide hole and a second air guide hole are respectively provided on both sides of the rotating block. The first air guide hole is movably connected to the pipe and the air inlet and outlet ports, and the second air guide hole is movably connected to the pipe and the external environment.

[0008] The air inlet and outlet ports are fixedly located on the top of the rotating switching mechanism and are movably connected to an air pipe.

[0009] Furthermore, the first air guide hole has an L-shaped structure. The horizontal section of the L-shaped structure of the first air guide hole is connected to the pipeline as the driving mechanism drives it, and the vertical section of the L-shaped structure of the first air guide hole faces upward and is connected to the air inlet and outlet ports.

[0010] Furthermore, the second air guide hole has an L-shaped structure. The horizontal section of the L-shaped structure of the second air guide hole is connected to the pipeline as the driving mechanism moves. A gap is provided between the bottom of the rotating block and the driving mechanism to form a cavity. The vertical section of the L-shaped structure of the second air guide hole faces downward and is connected to the cavity.

[0011] Furthermore, the top of the fixed housing is provided with two baffles, which movably cover the vertical section above the first air guide hole.

[0012] Furthermore, when viewed from above, the position of the baffle and the connection position of the pipe form a 90° angle with respect to the center line of the rotating block.

[0013] Furthermore, a first sealing ring is provided on the end face of the pipe, and the pipe presses the first sealing ring against the outer circumferential surface of the rotating block.

[0014] Furthermore, a second sealing ring is provided at the top and bottom of the rotating block, and the rotating block presses the second sealing ring against the inner wall of the fixed housing.

[0015] Furthermore, the drive mechanism employs a geared motor.

[0016] Furthermore, the connection between the air inlet / outlet port and the air pipe is provided with an external thread, and the air inlet / outlet port and the air pipe are connected and fixed by a threaded connection.

[0017] Furthermore, a quick-connect fitting is provided at the connection between the air inlet / outlet port and the air pipe, and the air inlet / outlet port and the air pipe are connected and fixed by the quick-connect fitting.

[0018] The technical solutions provided in this application have the following advantages compared with the prior art:

[0019] In the embodiments provided in this application, the rotating block is driven by a driving mechanism to rotate, thereby exchanging the positions of the first air guide hole and the second air guide hole. This allows the air path between the air pump's inlet and outlet to be switched through the first air guide hole and the second air guide hole, enabling rapid switching between the two states of air pumping and pressurizing and air releasing and depressurizing. This simplifies operation, makes it easier for users to get started, and improves the user experience. Attached Figure Description

[0020] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0021] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0023] Figure 1 This is a schematic diagram of an integrated inflation / deflation and pressure holding interface provided in an embodiment of this application.

[0024] Figure 2 This is a cross-sectional view of the inflated state.

[0025] Figure 3 This is a cross-sectional schematic diagram of the vented state.

[0026] Figure 4 This is a schematic diagram showing the structure in which the first air vent is covered by a baffle plate.

[0027] Explanation of reference numerals in the attached figures:

[0028] 1. Air pump; 11. Air inlet; 12. Air outlet; 13. Pipeline; 2. Rotation switching mechanism; 21. Fixed housing; 211. Baffle; 22. Drive mechanism; 23. Rotating block; 231. First air guide hole; 232. Second air guide hole; 233. Cavity; 241. First sealing ring; 242. Second sealing ring; 3. Air inlet and outlet ports. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0030] The following disclosure provides numerous different embodiments or examples for implementing various structures of this application. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed.

[0031] For ease of description, spatial relative terms may be used in the text to describe the relative position or movement of one element or feature relative to another element or feature, as shown in the figure. These relative terms include, for example, "inside," "outside," "middle," "outer," "below," "below," "above," "front," "back," etc. Such spatial relative terms are intended to include different orientations of the device in use or operation, other than those depicted in the figure. For example, if the device in the figure undergoes a positional flip, orientation change, or change of motion, these directional indications will change accordingly. For instance, an element described as "below other elements or features" or "below other elements or features" will subsequently be oriented "above other elements or features" or "above other elements or features." Therefore, the example term "below" can include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions), and the spatial relative descriptors used in the text will be interpreted accordingly.

[0032] To address the problem in existing technologies where separate inflation and deflation ports are required on electric air pumps, making it difficult for users to quickly identify and switch between the connected port types and affecting user experience, this application provides an integrated inflation / deflation and pressure-holding interface. This interface uses a drive mechanism to rotate a rotating block, thereby exchanging the positions of the first and second air guide holes. This allows the air path between the air pump's inlet and outlet to switch between the first and second air guide holes, enabling rapid switching between inflation / pressurization and deflation states.

[0033] Please see Figures 1 to 4 This application provides an integrated inflation / deflation and pressure holding interface, including: an air pump 1, a rotation switching mechanism 2, and an inlet / outlet port 3, wherein:

[0034] Air pump 1 has air inlets 11 and air outlets 12 on both sides, which are connected to the rotation switching mechanism 2 through pipes 13. The pipes 13 on both sides are symmetrically arranged about the central axis of the rotation switching mechanism 2.

[0035] The rotation switching mechanism 2 includes: a fixed housing 21, a drive mechanism 22, and a rotating block 23. The drive mechanism 22 is disposed at the bottom of the fixed housing 21, and the rotating block 23 is rotatably disposed inside the fixed housing 21. The output end of the drive mechanism 22 is connected to the center hole of the rotating block 23. A first air guide hole 231 and a second air guide hole 232 are respectively disposed on both sides of the rotating block 23. The first air guide hole 231 is movably connected to the pipe 13 and the air inlet / outlet port 3, and the second air guide hole 232 is movably connected to the pipe 13 and the external environment.

[0036] The air inlet / outlet port 3 is fixedly installed on the top of the rotating switching mechanism 2 and is movably connected to an air pipe.

[0037] During operation, the connection state between the air inlet 11 and the air outlet 12 of the air pump 1 can be switched by rotating the switching mechanism 2. This allows for the inflation and deflation of tires or other air-using items connected to the air inlet and outlet ports 3 via the air pump 1, depending on the different states of the switching mechanism 2. Specifically, in the embodiment provided in this application, a tire is used as an air-using item connected to an air hose. The user inflates or deflates the tire using an electric air pump equipped with the integrated inflation / deflation and pressure-holding interface provided in this application.

[0038] When the tire pressure is low and air pump 1 is needed to inflate the tire, the drive mechanism 22 of the rotation switching mechanism 2 is activated to drive the rotating block 23 to rotate. This causes the first air guide hole 231 to connect to the pipe 13 connected to the air outlet 12 of air pump 1. At the same time, the second air guide hole 232 connects to the pipe 13 connected to the air inlet 11 of air pump 1. When air pump 1 is started, since the second air guide hole 232 is connected to the external environment, air pump 1 will draw in air from the external environment through the second air guide hole 232, pressurize the air in air pump 1, and then send the pressurized air out through the pipe connected to the air outlet 12 and the first air guide hole 231, thereby sending the air into the tire to achieve the effect of inflation.

[0039] When the tire pressure is high and air pump 1 is needed to deflate the tire, the drive mechanism 22 of the rotation switching mechanism 2 is activated to drive the rotating block 23 to rotate. This causes the second air guide hole 232 to connect to the pipe 13 connected to the air outlet 12 of air pump 1. At this time, the first air guide hole 231 connects to the pipe 13 connected to the air inlet 11 of air pump 1. When air pump 1 is activated, since the first air guide hole 231 is connected to the air inlet and outlet ports 3, that is, the first air guide hole 231 is connected to the inside of the tire, air pump 1 will draw in air from the tire through the first air guide hole 231 and expel the air through the pipe connected to the air outlet 12 and the second air guide hole 232, thereby extracting air from the tire and achieving the effect of depressurization.

[0040] In some embodiments, the first air guide hole 231 has an L-shaped structure. The horizontal section of the L-shaped structure of the first air guide hole 231 is connected to the pipe 13 as driven by the drive mechanism 22, and the vertical section of the L-shaped structure of the first air guide hole 231 faces upward and is connected to the air inlet / outlet port 3. The connections between the pipes 13 on both sides and the fixed housing 21 are symmetrical and located on the same horizontal line. Therefore, under the drive of the drive mechanism 22, the horizontal section of the L-shaped structure of the first air guide hole 231 is moved to connect with the pipes 13 on both sides, thereby realizing the switching between inflation and deflation states. At the same time, since the air inlet / outlet port 3 is located at the top of the fixed housing 21, the vertical section of the L-shaped structure of the first air guide hole 231 is oriented towards the air inlet / outlet port 3 to ensure that the first air guide hole 231 can be connected to the tire through the air inlet / outlet port 3 and the air pipe, thus meeting the needs of inflating and deflating the tire.

[0041] In some embodiments, the second air guide hole 232 has an L-shaped structure. The horizontal section of the L-shaped structure of the second air guide hole 232 is connected to the pipe 13 as the drive mechanism 22 moves. A gap is provided between the bottom of the rotating block 23 and the drive mechanism 22 to form a cavity 233. The vertical section of the L-shaped structure of the second air guide hole 232 faces downward and is connected to the cavity 233. The connections between the pipes 13 on both sides and the fixed housing 21 are symmetrical and located on the same horizontal line. Therefore, under the drive of the drive mechanism 22, the horizontal section of the L-shaped structure of the second air guide hole 232 is moved to connect with the pipes 13 on both sides to facilitate the intake of air from the external environment or the exhaust of air to the external environment. Since a cavity 233 is provided between the bottom of the rotating block 23 and the top of the drive mechanism 22, the second air guide hole 232 can draw air from the cavity 233 to inflate tires and other air-using items, or release the air drawn out by the air pump 1 into the cavity 233 to meet the needs of air supply in the inflation state and air exhaust in the deflation state.

[0042] In some embodiments, the top of the fixed housing 21 is provided with two baffles 211, which movably cover the vertical section of the first air guide hole 231. In the non-working state, i.e., when the user has not yet selected an air release or inflation state, the drive mechanism 22 drives the rotating block 23 to rotate, so that the first air guide hole 231 is located below the baffles 211. This covers the vertical section of the first air guide hole 231, preventing foreign objects from falling into the first air guide hole 231 and causing blockage of the overall air passage. Simultaneously, it avoids the rotating block 23 remaining in an inflation or air release state when the user has not selected a working state, thus preventing accidents during startup or accidental startup. For example, if the rotating block 23 is in an inflation state when air release is needed, the tire may be inflated during startup, leading to excessive tire pressure and potentially even tire rupture.

[0043] In some embodiments, when viewed from above, the baffle 211 is positioned at a 90° angle to the connection point of the pipe 13 about the center line of the rotating block 23. This effectively prevents the first air guide hole 231 or the second air guide hole 232 from being too close to the pipe 13 in the standby state, thus affecting the effect of cutting off and protecting the air path.

[0044] In some embodiments, a first sealing ring 241 is provided on the end face of the pipe 13, and the pipe 13 presses the first sealing ring 241 tightly against the outer circumferential surface of the rotating block 23. The first sealing ring 241 fills the gap between the pipe 13 and the rotating block 23, thereby preventing air from leaking to the outside from the gap between the pipe 13 and the rotating block 23. When the rotating block 23 is driven by the driving mechanism 22, causing the first air guide hole 231 or the second air guide hole 232 to be connected with the pipe 13, the sealing effect provided by the first sealing ring 241 ensures that the pressure of inflation and deflation will not leak due to the gap between the pipe 13 and the rotating block 23 during the inflation and deflation process.

[0045] In some embodiments, a second sealing ring 242 is provided at the top and bottom of the rotating block 23, and the rotating block 23 presses the second sealing ring 242 against the inner wall of the fixed housing 21. The second sealing ring 242 fills the gap between the rotating block 23 and the fixed housing 21, thereby preventing air leakage and effectively preventing dust, impurities, etc. from entering between the fixed housing 21 and the rotating block 23 and affecting the rotation state of the rotating block 23, thus effectively ensuring the stability of the air pump 1's inflation and deflation operations.

[0046] In some embodiments, the drive mechanism 22 is a geared motor. The geared motor consists of a motor and a reducer. The motor provides power, converting electrical energy into mechanical energy to generate high-speed rotational motion. The high-speed rotational motion of the motor is transmitted to the reducer, which adjusts the speed to reduce the output speed while increasing the torque to meet the driving requirements of larger loads. This drives the rotating block 23 to rotate, thereby switching the air pump 1 between the charging and decharging states by switching the positions of the first air guide hole 231 and the second air guide hole 232.

[0047] In some embodiments, the connection between the air inlet / outlet port 3 and the air pipe is provided with an external thread, and the air inlet / outlet port 3 and the air pipe are connected and fixed by a threaded connection. The threaded connection allows for a locking connection between the air inlet / outlet port 3 and the air pipe, ensuring a stable and reliable connection during inflation and deflation. Simultaneously, to achieve a seal between the air pipe and the air inlet / outlet port 3 while locking, a tapered thread or pipe thread can be used to improve the sealing effect, prevent air leakage at the connection between the air pipe and the air inlet / outlet port 3, and ensure the overall stability of the inflation and deflation process.

[0048] In some embodiments, a quick-connect fitting is provided at the connection between the air inlet / outlet port 3 and the air pipe, and the air inlet / outlet port 3 and the air pipe are fixed together by the quick-connect fitting. The quick-connect fitting is self-locking after connection to limit relative movement between the air inlet / outlet port 3 and the air pipe, while retaining a rotating joint to prevent the connection between the air inlet / outlet port 3 and the air pipe from being affected by twisting during use. The quick-connect fitting has an internal seal to effectively provide a sealing effect, ensuring the stability of the air pump 1 during inflation and deflation. Furthermore, the quick-connect fitting is convenient and quick to insert and remove, effectively improving the user experience.

[0049] In the embodiments provided in this application, the rotating block 23 is driven to rotate by the driving mechanism 22, thereby exchanging the positions of the first air guide hole 231 and the second air guide hole 232. This allows the air passages of the air pump 1's air inlet 11 and air outlet 12 to be switched through the first air guide hole 231 and the second air guide hole 232, realizing a quick switch between the two states of air pumping and pressurizing and air releasing and depressurizing. This simplifies the operation, makes it easier for users to get started, and improves the user experience.

[0050] In the above embodiments, the descriptions of each embodiment have different focuses. For parts that are not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0051] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application 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. Therefore, they should not be construed as limitations on this application.

[0052] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0053] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0054] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0055] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. The illustrative expressions of the above terms in this specification should not be construed as necessarily referring 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. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0056] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Since these modifications and variations fall within the scope of the claims and their equivalents, this application also intends to include these modifications and variations.

[0057] The above description describes specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this application, and these modifications or substitutions should all be covered within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. An integrated inflation / deflation and pressure-holding interface, characterized in that, include: The air pump, rotation switching mechanism, and air inlet / outlet ports include: An air pump has air inlets and outlets on both sides connected to a rotary switching mechanism via pipes. The pipes are symmetrically arranged on both sides of the rotary switching mechanism about the central axis of the rotary switching mechanism. The rotating switching mechanism includes: a fixed housing, a drive mechanism, and a rotating block. The drive mechanism is located at the bottom of the fixed housing, and the rotating block is rotatably located inside the fixed housing. The output end of the drive mechanism is connected to the center hole of the rotating block. A first air guide hole and a second air guide hole are respectively provided on both sides of the rotating block. The first air guide hole is movably connected to the pipe and the air inlet and outlet ports, and the second air guide hole is movably connected to the pipe and the external environment. The air inlet and outlet ports are fixedly located on the top of the rotating switching mechanism and are movably connected to an air pipe.

2. The integrated inflation / deflation and pressure-holding interface according to claim 1, characterized in that, The first air guide hole has an L-shaped structure. The horizontal section of the L-shaped structure of the first air guide hole is connected to the pipeline as the driving mechanism moves, and the vertical section of the L-shaped structure of the first air guide hole faces upward and is connected to the air inlet and outlet ports.

3. The integrated inflation / deflation and pressure-holding interface according to claim 1, characterized in that, The second air guide hole has an L-shaped structure. The horizontal section of the L-shaped structure of the second air guide hole is connected to the pipeline as the driving mechanism moves. A gap is provided between the bottom of the rotating block and the driving mechanism to form a cavity. The vertical section of the L-shaped structure of the second air guide hole faces downward and is connected to the cavity.

4. The integrated inflation / deflation and pressure holding interface according to claim 2, characterized in that, The top of the fixed housing is provided with two baffles, which movably cover the vertical section above the first air guide hole.

5. The integrated inflation / deflation and pressure-holding interface according to claim 4, characterized in that, When viewed from above, the baffle's position and the pipe connection position form a 90° angle with respect to the center line of the rotating block.

6. The integrated inflation / deflation and pressure-holding interface according to any one of claims 1 to 5, characterized in that, A first sealing ring is provided on the end face of the pipe, and the pipe presses the first sealing ring against the outer circumferential surface of the rotating block.

7. The integrated inflation / deflation and pressure-holding interface according to claim 1, characterized in that, The top and bottom of the rotating block are respectively provided with a second sealing ring, and the rotating block presses the second sealing ring against the inner wall of the fixed housing.

8. The integrated inflation / deflation and pressure-holding interface according to claim 1, characterized in that, The drive mechanism uses a geared motor.

9. The integrated inflation / deflation and pressure-holding interface according to claim 1, characterized in that, The inlet / outlet port is provided with an external thread at the connection with the air pipe, and the inlet / outlet port and the air pipe are connected and fixed by the threaded connection.

10. The integrated inflation / deflation and pressure-holding interface according to claim 1, characterized in that, A quick-connect connector is provided at the connection between the air inlet / outlet port and the air pipe, and the air inlet / outlet port and the air pipe are connected and fixed by the quick-connect connector.

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