Portable inflating pump

Abstract

The utility model relates to a portable inflating pump, and belongs to the technical field of inflating pumps. The method at least has the following characteristics: the value range of the design parameter H is 60mm to 88mm; the value range of the design parameter W is 23 mm to 35 mm; the value range of the design parameter L is from 39 mm to 49 mm; the portable inflating pump can inflate an object to be inflated to the pressure P; the value range of the pressure P is from 105 psi to 150 psi; the air pressure monitoring device is configured to detect the inflating pressure; and the display module is configured to display the inflating pressure. The inflation pump can monitor and feed back air pressure changes in real time in the inflation process. A user can check the current air pressure value, the inflation progress and whether inflation is completed or not at any time through the display module, the risk of over-inflation or insufficient inflation is avoided, and the use safety and accuracy are improved.

Description

Technical Field

[0001] This utility model belongs to the field of air pump technology, and relates to a technology for reducing the size of air pumps, specifically a portable air pump. Background Technology

[0002] Portable air pumps are widely used in daily life for inflating car tires, sports equipment, and other items. Traditional portable air pumps typically have a simple design, relying mainly on their compact size and adaptability to meet inflation needs in different scenarios. With continuous technological advancements, higher demands are being placed on portable air pumps, particularly in terms of miniaturization, accuracy, and functionality.

[0003] In the design of small portable air pumps, pressure detection and display functions are often overlooked. Most existing portable air pumps focus on size and power in their structural design, but are lacking in pressure detection and real-time display. Due to the small size and light weight of portable air pumps, and the relatively tight device space, traditional designs usually do not integrate pressure monitoring devices and display modules into the air pump itself. This means that users cannot understand pressure changes during inflation in real time, especially in high-pressure application scenarios, where whether the inflation meets the standard often relies on the user's experience and judgment. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides a portable air pump.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] Provide a portable air pump, having at least the following features:

[0007] The design parameter H represents the numerical value of the air pump housing height;

[0008] The design parameter W represents the width of the air pump housing.

[0009] The design parameter L represents the numerical value of the length of the air pump housing;

[0010] The design parameter H is in the range of 60mm to 88mm.

[0011] The design parameter W has a range of 23mm to 35mm.

[0012] The design parameter L has a range of 39mm to 49mm.

[0013] Furthermore, the aforementioned design parameters H, W, and L can take any value within their respective ranges, which has the following properties:

[0014] The portable air pump can inflate the object to be inflated to pressure P;

[0015] Furthermore, the pressure P ranges from 105 psi to 150 psi;

[0016] Also includes:

[0017] A pressure monitoring device is configured to detect the air pressure during inflation.

[0018] And / or, the display module is configured to display the inflation pressure.

[0019] Preferably, it has at least:

[0020] The parameter G represents the weight of a portable air pump;

[0021] Furthermore, the aforementioned design parameters H, W, and L can take any value within their respective ranges, which has the following properties:

[0022] The value range of parameter G is 80g to 150g.

[0023] Preferably, the volume of the cylinder of the portable air pump before compression is V1:

[0024]

[0025] The compressed volume is V2:

[0026]

[0027] And it satisfies:

[0028] 16≤V1 / V2≤60;

[0029] Where D4 is the inner diameter of the cylinder, K is the stroke of the cylinder, s is the clearance of the cylinder, t is the thickness of the air outlet, and d is the diameter of the air outlet.

[0030] Preferably, it includes:

[0031] The battery is disposed inside the air pump housing and arranged adjacent to one side wall of the air pump housing;

[0032] A drive unit is disposed inside the air pump housing and adjacent to the bottom surface of the air pump housing;

[0033] A pressure generating component is disposed inside the housing and connected to the driving component;

[0034] The air pressure generating component is arranged adjacent to another side wall of the air pump housing.

[0035] Preferably, the air pressure generating component includes:

[0036] A transmission structure, connected to the driving component, is used to convert the rotational motion of the driving component into reciprocating linear motion;

[0037] The piston structure is connected to the transmission structure and compresses and depressurizes the internal gas when receiving the reciprocating motion of the transmission structure.

[0038] Preferably, the transmission structure includes:

[0039] Eccentric wheel and connecting rod;

[0040] The eccentric wheel is connected to the drive end of the drive component;

[0041] The connecting rod and the eccentric wheel form an eccentric connection.

[0042] Preferably, the piston structure includes:

[0043] Piston chamber and resilient seal;

[0044] The elastic seal is slidably connected to the piston chamber and is connected to the connecting rod.

[0045] Preferably, it includes an air inflator chamber;

[0046] The air-inflating chamber is unidirectionally connected to the piston chamber;

[0047] The one-way communication means that airflow can only enter the air-inflating chamber from the piston chamber.

[0048] Preferably, the air-inflating chamber is provided with an air-inflating port;

[0049] Furthermore, the axis of the air inlet is perpendicular to the axis of the air inlet chamber;

[0050] Furthermore, the axes of the air pump chamber and the piston chamber are aligned with the height direction of the air pump housing.

[0051] Preferably, it includes:

[0052] The detection chamber is connected to the air pump chamber and is located above the air pump chamber in the height direction of the air pump housing;

[0053] Furthermore, the air pressure monitoring device is located inside the detection chamber.

[0054] Preferably, it includes:

[0055] A unidirectional flow guide structure is disposed between the piston chamber and the air pumping chamber.

[0056] This utility model provides a portable air pump, and the beneficial effects of this utility model are reflected in:

[0057] The portable air pump's dimensions have been precisely optimized to ensure it can be easily placed in a small pocket of cycling apparel or a toolbox on the bike, meeting cyclists' needs for portability. This design allows professional cyclists to carry the air pump with them at all times during their rides without worrying about it affecting their riding comfort.

[0058] While ensuring portability, this embodiment ensures that the air pump can inflate tires to a professional range of 105 psi to 150 psi, meeting the precise tire pressure requirements of relatively professional cyclists. This pressure range aligns with the cyclist's sensitive needs for riding feel, thereby ensuring optimal riding experience during inflation.

[0059] The introduction of a pressure monitoring device allows the air pump to monitor and report pressure changes in real time during inflation. Users can view the current pressure value, inflation progress, and whether inflation is complete at any time through the display module, avoiding the risks of over-inflation or under-inflation and improving safety and accuracy of use.

[0060] The intuitive display module allows users to clearly understand the air pressure and inflation progress, avoiding repetitive checks or unnecessary operations. The display module not only shows air pressure information but also indicates inflation status and error messages, making operation more convenient and intuitive, further enhancing the usability of the portable air pump. Attached Figure Description

[0061] Figure 1 This is a perspective view of the portable air pump proposed in this utility model;

[0062] Figure 2 This is a side view of the portable air pump proposed in this utility model;

[0063] Figure 3 This is a rear view of the portable air pump proposed in this utility model;

[0064] Figure 4 This is a top view of the portable air pump proposed in this utility model;

[0065] Figure 5 This is a front view of the portable air pump proposed in this utility model;

[0066] Figure 6 This is one of the structural diagrams of the concealed housing of the portable air pump proposed in this utility model;

[0067] Figure 7 This is the second structural diagram of the concealed housing of the portable air pump proposed in this utility model;

[0068] Figure 8 This is a cross-sectional view of the portable air pump proposed in this utility model.

[0069] Explanation of reference numerals in the attached figures:

[0070] 1. Housing; 2. Battery; 3. Drive unit; 4. Air pressure generating component; 401. Transmission structure; 4011. Eccentric wheel; 4012. Connecting rod; 402. Piston structure; 4021. Piston chamber; 4022. Elastic seal; 403. Air inflator; 4031. Air inflator; 5. Air pressure monitoring device; 6. Display module; 7. One-way flow guide structure; 8. Detection chamber. Detailed Implementation

[0071] 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.

[0072] Please see Figures 1-8 As shown, the specific embodiments provided by this utility model are as follows:

[0073] like Figures 1 to 8 As shown, the first embodiment of this utility model proposes a portable air pump, which has at least the following features:

[0074] The design parameter H represents the height of the air pump housing 1.

[0075] The design parameter W represents the width of the air pump housing 1.

[0076] The design parameter L represents the length of the air pump housing 1.

[0077] The design parameter H is in the range of 60mm to 88mm.

[0078] The design parameter W has a range of 23mm to 35mm.

[0079] The design parameter L has a range of 39mm to 49mm.

[0080] Furthermore, the aforementioned design parameters H, W, and L can take any value within their respective ranges, which has the following properties:

[0081] The portable air pump can inflate the object to be inflated to pressure P;

[0082] Furthermore, the pressure P ranges from 105 psi to 150 psi;

[0083] Also includes:

[0084] Air pressure monitoring device 5 is configured to detect the air pressure.

[0085] And / or, display module 6 is configured to display inflation pressure.

[0086] In this embodiment, from the perspective of a relatively professional cyclist, given their absolute requirements for tire pressure, it is desirable to find the size of a portable air pump that meets the professional requirements of a relatively professional cyclist.

[0087] Firstly, from a portability perspective, the portable air pump should at least be large enough to fit into a small pocket of a cycling jersey or into a tool container on the bike.

[0088] Secondly, based on the above, it is necessary to consider the perspective of relatively professional cyclists to determine within what size range a portable air pump can ensure providing the tire pressure within a professional range. Further investigation reveals that while optimizing the size of the portable air pump is ideally better the smaller it is, in actual production, the dimensions of related structures constituting the portable air pump, such as the motor and battery, also need to be considered. This application aims to find the minimum possible values ​​or ranges for various parameters of the portable air pump without altering the dimensions of these structural components, and these minimum values ​​or ranges must satisfy the first two requirements.

[0089] Once the portable air pump meets the first three requirements, the impact on the cyclist in its portable state needs further consideration. Because cycling clothing has a certain degree of elasticity, when the portable air pump is fitted into a cycling clothing pocket, its movement needs to be minimized to reduce its impact on the cyclist. Of course, if the portable air pump is small enough, it is easier for it to remain stable due to the elasticity of the cycling clothing, but the pressure exerted on the cyclist will be more concentrated and noticeable, thus reducing the cyclist's comfort. Conversely, a relatively large portable air pump, while mitigating the discomfort of the pressure to the cyclist to some extent, is less stable. Therefore, a balance needs to be found within this size range to ensure that the portable air pump itself has high stability while also providing good comfort for the cyclist when carrying it.

[0090] In summary, a portable air pump is provided with a size that meets at least the aforementioned four requirements.

[0091] The design parameter H, representing the height of the portable air pump, ranges from 60mm to 88mm; the design parameter W, representing the width of the portable air pump, ranges from 23mm to 35mm; and the design parameter L, representing the length of the portable air pump, ranges from 39mm to 49mm.

[0092] Under the aforementioned three size constraints, it was found that this represents a balance between the four requirements mentioned above. However, such size constraints cannot be obtained through a limited number of experiments. Firstly, limited experiments are judgment criteria for fields such as chemistry or medicine, and are not applicable to this application. Secondly, the value ranges of the three sizes defined in this application can be viewed to some extent as combinations of countless possibilities; any value of each size within its corresponding range can be combined with any value of other sizes within their corresponding ranges.

[0093] Of course, the dimensions specified in this application are not conventional. The reason is that, firstly, as can be seen from the foregoing analysis, this application is based on the perspective of a relatively professional cyclist in this field. Since their cycling knowledge far exceeds that of ordinary cyclists, i.e., those skilled in the art, they are able to combine their professional knowledge to propose at least the aforementioned four requirements and find a balanced range of values ​​for each dimension based on these requirements. This is something that those skilled in the art do not possess.

[0094] Furthermore, the three dimensions specified in this application are not intended to seek a broad scope of protection. This is because this application does not intend to include portable air pumps in the prior art, as these portable air pumps are designed specifically for ordinary cyclists or cycling enthusiasts, while the purpose of this application is to provide relatively professional cyclists with a portable air pump that can meet their professional habits.

[0095] Therefore, it is difficult to define whether a cyclist is considered relatively professional. Thus, this application further narrows the scope of protection, limiting the protection to a portable air pump capable of inflating an object to pressure P, with pressure P ranging from 105 psi to 150 psi. This pressure range aligns with the professional habits of relatively professional cyclists, who are more sensitive and demanding in their perception of tire pressure, and only when the tire pressure reaches the specified range can they achieve a relatively good riding experience.

[0096] It should be noted that although various types of portable air pumps exist in the prior art, and some are even smaller than those specified in this application, their inflation pressure is typically less than 100 psi. This shows that some existing portable air pumps prioritize portability without considering whether sacrificing inflation pressure for the sake of portability is worthwhile for relatively professional cyclists.

[0097] Therefore, the starting point of this application is to find a balanced range of air pump size while ensuring that the inflation pressure meets the riding habits of relatively professional cyclists, that is, while ensuring that the inflation pressure is between 105psi and 150psi, so as to further satisfy the function of portability. In other words, this application focuses on the relationship and mutual influence between inflation pressure and air pump size, and ultimately achieves a balance between the two to provide relatively professional cyclists with a professional portable air pump.

[0098] Therefore, the portable air pump provided in this embodiment has at least the following beneficial effects:

[0099] Firstly, the size of the portable air pump has been optimized and adjusted so that it can be placed in a pocket of cycling clothing or a tool container on the bike in a more suitable size, thus achieving portability.

[0100] Secondly, while ensuring the portability of the portable air pump, it also ensures that the portable air pump can inflate tires to 105psi to 150psi to meet the riding needs of cyclists.

[0101] Based on the above, an air pressure monitoring device 5 is added to achieve real-time monitoring and feedback of air pressure during the inflation process.

[0102] Specifically, the air pressure monitoring device 5 is used to detect air pressure changes in real time during the operation of the air pump and provide accurate air pressure data. This device can effectively track air pressure levels and ensure that the air pressure reaches the predetermined requirements during the inflation process.

[0103] With the air pressure monitoring device 5, users can know the current air pressure value of the air pump in real time, thus avoiding over-inflation or under-inflation. The air pressure monitoring device 5 can feed the data back to the user through the display module 6 or other interfaces, indicating whether inflation is complete or whether inflation parameters need to be adjusted.

[0104] In one specific embodiment, the air pressure monitoring device 5 includes a sensor and a data processing module. The sensor can measure the air pressure in the air chamber in real time and transmit the data to the processing module. After analyzing the data, the processing module outputs the air pressure value, which may be displayed to the user via a display module 6 or other communication methods.

[0105] Based on the above, a display module 6 is included.

[0106] In this embodiment, the display module 6 provides intuitive feedback to the user by displaying the air pump's working status, air pressure data, inflation progress, and other information in real time. Users can easily understand the current air pressure level and the completion status of the inflation process, ensuring that every step of the inflation process is under control.

[0107] Display module 6 not only shows the current air pressure value, but also indicates whether inflation is complete, whether the target air pressure has been reached, or whether further inflation is needed. This function helps users accurately determine whether the air pump has completed its task, avoiding the hassle of repeated checks.

[0108] By placing the display module 6 in a convenient location for users to view, users can easily check the air pressure and inflation status while using the air pump. Whether inflating tires, balloons, or other inflatable objects, users can observe the inflation progress at any time from a convenient position.

[0109] Display module 6 can take the form of a digital display screen, LCD screen, or LED indicator, and the displayed content includes, but is not limited to:

[0110] Current air pressure value (e.g., in psi, bar, etc.)

[0111] Inflation progress (e.g., whether inflation is complete, whether the target air pressure has been reached, etc.)

[0112] Error messages or warnings (e.g., abnormal air pressure, inflation failure, etc.)

[0113] For example, a digital display screen can accurately show the current air pressure value, while LED indicator lights can clearly and concisely remind users of the inflation status through color changes (green indicates inflation is complete, red indicates inflation is abnormal).

[0114] Operating mode selection: Some display modules 6 can also support users to select different operating modes (e.g., selecting inflation mode or monitoring mode), and clearly display the current operating mode through the interface.

[0115] The addition of display module 6 makes the air pressure data and equipment status during the inflation process clearly visible, allowing users to monitor the inflation status in real time and improving the transparency of equipment operation.

[0116] Users can determine whether to continue or stop inflating based on the displayed information, avoiding unnecessary operations and making the air pump easier to use.

[0117] Display module 6 provides accurate air pressure information, avoiding over-inflation or under-inflation due to inaccurate judgment. Furthermore, the system can promptly alert the user when air pressure is abnormal, ensuring a safe and efficient inflation process.

[0118] In one specific embodiment, the volume of the portable air pump's cylinder before compression is V1:

[0119]

[0120] The compressed volume is V2:

[0121]

[0122] And it satisfies:

[0123] 16≤V1 / V2≤60;

[0124] Where D4 is the inner diameter of the cylinder, K is the stroke of the cylinder, s is the clearance of the cylinder, t is the thickness of the air outlet, and d is the diameter of the air outlet.

[0125] In this embodiment, the design parameters H, W, and L of the portable air pump represent the height, width, and length of the air pump housing 1, respectively. Their specific value ranges are crucial to the portability and performance of the device. According to the provided design parameter ranges, H ranges from 60mm to 88mm, W ranges from 23mm to 35mm, and L ranges from 39mm to 49mm. This size setting makes the air pump both compact and easy to carry. Since this portable air pump is mainly intended for mobile use scenarios, such as cycling or sports, the reasonable design dimensions ensure that the product is lightweight and easy to store and operate.

[0126] Furthermore, the rationality of the design parameters is closely related to its compression ratio. The cylinder's volume V1 before compression and its volume V2 after compression must meet the compression ratio requirement of 16 ≤ V1 / V2 ≤ 60. This compression ratio has a significant impact on the motor load and the inflation effect. If the compression ratio is too high, it means that the gas is compressed more tightly in a small volume, making the compression of the gas in the cylinder more difficult, thereby increasing the burden on the motor, causing the motor to overload or overheat, affecting the stability and lifespan of the equipment. If the compression ratio is too low, it means that the gas is not fully compressed. Although the motor load is lighter, the output pressure will not be high enough to meet the high-pressure inflation requirements. Therefore, the inflation efficiency and actual use effect will be affected.

[0127] Therefore, this embodiment ensures that the motor operates under a reasonable load by limiting the range of V1 / V2, while also ensuring that the portable air pump can achieve the desired inflation pressure P (105psi to 150psi) while maintaining portability. This not only optimizes the motor's operating efficiency but also improves the overall performance of the portable air pump, making it able to meet the needs of high-pressure inflation without being too bulky or having excessive power, thus meeting practical usage requirements.

[0128] The second embodiment of this utility model proposes a portable air pump, and based on the previous embodiment, it has at least the following features:

[0129] The parameter G represents the weight of a portable air pump;

[0130] Furthermore, the aforementioned design parameters H, W, and L can take any value within their respective ranges, which has the following properties:

[0131] The value range of parameter G is 80g to 150g.

[0132] The third embodiment of this utility model proposes a portable air pump, which, based on the previous embodiment, includes:

[0133] Battery 2 is disposed inside the air pump housing 1 and arranged adjacent to one side wall of the air pump housing 1;

[0134] The driving component 3 is disposed inside the air pump housing 1 and adjacent to the bottom surface of the air pump housing 1;

[0135] The air pressure generating component 4 is disposed inside the housing 1 and connected to the driving component 3;

[0136] The air pressure generating component 4 is arranged adjacent to the other side wall of the air pump housing 1.

[0137] In this embodiment, the portable air pump design further optimizes the structural layout, enabling efficient cooperation between components and saving space as much as possible. The battery 2 is located inside the air pump housing 1, adjacent to one side wall of the housing 1. This structure effectively reduces interference between the battery 2 and other components, while facilitating the removal and replacement of the battery 2. The placement of the battery 2 ensures the stability of charging and power supply without affecting the performance of other components.

[0138] The drive unit 3 (brushless motor) is located inside the air pump housing 1 and adjacent to the bottom surface of the air pump housing 1. This arrangement allows the drive unit 3 to generate sufficient power during air pumping while avoiding collisions or spatial conflicts with other critical components. The bottom position also facilitates heat dissipation for the drive unit 3, ensuring its stability during long-term operation.

[0139] The air pressure generating component 4 is housed inside the housing 1 and connected to the drive component 3, with its position adjacent to another side wall of the air pump housing 1. This structure not only improves the overall air pressure generating efficiency of the air pump but also optimizes the utilization of the internal space. The close cooperation between the air pressure generating component 4 and the drive component 3 ensures high efficiency and durability during inflation, reduces energy loss, and improves the performance of the air pump.

[0140] With this reasonable structural layout, the portable air pump in this embodiment maintains a compact size while ensuring the efficient operation of each component, and has good performance in terms of air pressure generation, energy supply and heat dissipation.

[0141] The fourth embodiment of this utility model proposes a portable air pump, and based on the previous embodiment, the air pressure generating component 4 includes:

[0142] The transmission structure 401 is connected to the drive component 3 and is used to convert the rotational motion of the drive component 3 into reciprocating linear motion.

[0143] The piston structure 402 is connected to the transmission structure 401 and compresses and depressurizes the internal gas when receiving the reciprocating motion of the transmission structure 401.

[0144] In this embodiment, the transmission structure 401 serves to convert the rotational motion of the drive component 3 into a reciprocating linear motion. Through this mechanism, the continuous rotation of the drive component 3 no longer directly drives the gas pressure generating component 4, but is instead converted into a reciprocating linear motion by the transmission structure 401 to drive the piston to compress and depressurize the gas.

[0145] The piston structure 402 is connected to the transmission structure 401 and is responsible for receiving the reciprocating motion generated by the transmission structure 401 and using it to compress and depressurize the internal gas.

[0146] The transmission structure 401 includes:

[0147] Eccentric wheel 4011 and connecting rod 4012;

[0148] The eccentric wheel 4011 is connected to the drive end of the drive component 3;

[0149] The connecting rod 4012 and the eccentric wheel 4011 form an eccentric connection.

[0150] The eccentric wheel 4011 is a wheel with an asymmetrical geometry. Through its eccentric design, its rotation drives the connected rod 4012 to reciprocate. This effectively converts rotational motion into linear reciprocating motion, directly driving the piston to perform compression and decompression processes within the air chamber.

[0151] Connecting rod 4012 is connected to eccentric wheel 4011, and its linear reciprocating motion enables the power transmission of eccentric wheel 4011. The design of connecting rod 4012 can precisely control the reciprocating trajectory of the piston, thereby ensuring the stability and efficiency of the air pressure generation process.

[0152] The piston structure 402 includes:

[0153] Piston chamber 4021 and resilient seal 4022;

[0154] The elastic seal 4022 is slidably connected to the piston chamber 4021 and is connected to the connecting rod 4012.

[0155] The piston chamber 4021 is a crucial area for gas compression and decompression, responsible for containing the gas and compressing and releasing it with the reciprocating motion of the piston. In this embodiment, the piston chamber 4021 is located inside the housing 1 and is slidably connected to the elastic seal 4022. The elastic seal 4022 is a flexible sealing element that is slidably connected within the piston chamber 4021. Its function is to form a seal between itself and the piston chamber 4021, preventing gas leakage during compression. The flexibility of the elastic seal 4022 allows it to slide freely with the reciprocating motion of the piston, ensuring the sealing of the piston chamber 4021 and improving compression efficiency.

[0156] The elastic seal 4022, through its sliding engagement with the piston chamber 4021, prevents gas leakage during gas compression, ensuring the compression effect of the gas in the chamber and thus improving inflation efficiency. Furthermore, the material and design of the elastic seal 4022 allow it to maintain low wear during frequent reciprocating motions, while ensuring flexibility and avoiding problems such as excessive resistance or uneven movement.

[0157] In one specific embodiment, the elastic seal 4022 can be a leather cup or a sealing ring.

[0158] The fifth embodiment of this utility model proposes a portable air pump, which, based on the previous embodiment, includes an air pumping chamber 403;

[0159] The air-inflating chamber 403 is connected to the piston chamber 4021;

[0160] The one-way communication means that airflow can only enter the air-inflating chamber 403 from the piston chamber 4021.

[0161] In this embodiment, the air-inflating chamber is located above and connected to the piston chamber 4021. This ensures that after compression in the piston chamber 4021, the gas can quickly flow into the air-inflating chamber 403 for delivery. The connection between the air-inflating chamber 403 and the piston chamber 4021 ensures that the gas can flow directly to the air-inflating chamber 403 after compression, providing a stable gas source for subsequent inflation.

[0162] In one specific embodiment, the air-inflating chamber is provided with an air-inflating port;

[0163] Furthermore, the axis of the air inlet is perpendicular to the axis of the air inlet chamber;

[0164] Furthermore, the axes of the air pump chamber and the piston chamber are aligned with the height direction of the air pump housing.

[0165] In this embodiment, the air-inflating chamber is provided with an air-inflating port, and the axis of the air-inflating port is perpendicular to the axis of the air-inflating chamber. This makes the airflow entry and exit smoother and helps to improve the efficiency of the air pump during the inflation process. By aligning the axis of the air-inflating port perpendicular to the axis of the air-inflating chamber, optimized control of the airflow direction can be achieved, reducing airflow turbulence and ensuring stable and uniform pressure output during inflation.

[0166] Meanwhile, the axes of the air-inflating chamber and the piston chamber are aligned with the height direction of the air pump housing. This structure ensures the linearity of the air pressure generation and gas delivery process, helps reduce potential energy loss during gas flow, and ensures the compactness of the internal space of the air pump. Through this design, the reciprocating motion of the piston can efficiently drive the air flow within the air-inflating chamber, thereby achieving efficient inflation.

[0167] Overall, this structure optimizes the airflow path and component layout, which not only improves the inflation efficiency of portable air pumps but also enhances their reliability and stability in different usage environments.

[0168] The air inlet 4031 is configured to mount an air valve assembly, which connects to an external inflation device (such as a tire) via the air inlet 4031. The air valve assembly typically includes an adjustable interface to accommodate different inflation requirements. This configuration not only improves flexibility but also effectively reduces gas leakage during inflation, ensuring efficient and stable gas delivery to the target object.

[0169] The sixth embodiment of this utility model proposes a portable air pump, which, based on the previous embodiment, includes:

[0170] The detection chamber 8 is connected to the air pump chamber 403, and in the height direction of the air pump housing 1, the detection chamber 8 is located above the air pump chamber 403;

[0171] Furthermore, the air pressure monitoring device 5 is located inside the detection chamber 8.

[0172] In this embodiment, the portable air pump further optimizes the structural design of air pressure monitoring by introducing a detection chamber 8. Specifically, the detection chamber 8 is connected to the air pump chamber 403, and in the height direction of the air pump housing 1, the detection chamber 8 is located above the air pump chamber 403. This design makes full use of the vertical layout of the air pump's internal space, enabling the air pressure monitoring device 5 to accurately monitor the air pressure in the air pump chamber 403 without affecting the normal operation of other components.

[0173] The detection chamber 8 is positioned above the inflation chamber 403, which helps maintain smooth airflow and prevents the pressure monitoring device 5 from being directly exposed to the high-pressure environment during inflation, thereby extending the service life of the pressure monitoring device 5. This positioning design also optimizes the gas flow path, ensuring the accuracy and real-time nature of the pressure data.

[0174] The air pressure monitoring device 5 is installed inside the detection chamber 8. By monitoring the air pressure changes in real time during the inflation process, it provides accurate data support, ensuring that the portable air pump can accurately inflate according to the preset pressure range. In addition, the location of the air pressure monitoring device 5 also reduces interference from external factors on its performance, improving the overall reliability of use.

[0175] This embodiment not only improves the accuracy and stability of the portable air pump, but also ensures efficient collaboration between various functional modules, enabling users to obtain more accurate pressure data and operating experience during the inflation process.

[0176] The seventh embodiment of this utility model proposes a portable air pump, which, based on the previous embodiment, includes:

[0177] A unidirectional flow guide structure 7 is disposed between the piston chamber 4021 and the air pumping chamber 403.

[0178] In this embodiment, the main function of the unidirectional flow structure 7 is to ensure that the airflow can only flow in one direction, thereby avoiding backflow of gas during the inflation process. This unidirectional flow design ensures that compressed air flows only to the inflation chamber 403 and effectively prevents gas from flowing back into the piston chamber 4021 or other areas.

[0179] The unidirectional flow guide structure 7 avoids gas backflow, reduces energy loss, and improves inflation efficiency. Under the compression of the piston chamber 4021, the gas can flow smoothly to the air chamber 403, making the inflation process smoother and more efficient.

[0180] When the drive unit 3 stops working, the one-way flow structure 7 can prevent gas from flowing back from the air chamber 403 to the piston chamber 4021, ensuring stable gas storage and output, and avoiding interference from reverse pressure on the air pressure generation system.

[0181] One-way flow structure 7 usually takes the form of valve, one-way airflow channel or ball check device, etc. These components can effectively control the one-way flow of airflow.

[0182] The valve or check valve can be designed as a resilient disc or ball valve. When the airflow direction is normal, the disc or ball automatically opens to allow gas to pass through; when the airflow direction is reversed, the disc or ball automatically closes to prevent gas from flowing in the opposite direction.

[0183] This embodiment further improves the inflation efficiency, stability, and reliability of the portable air pump by adding a unidirectional airflow guide structure 7. This structure effectively controls the unidirectional flow of air, avoiding airflow reversal and energy loss, ensuring stable inflation, and optimizing the overall performance of the device.

[0184] In the description of the embodiments of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "center", "top", "bottom", "top", "bottom", "inner", "outer", "inner side", "outer side", etc. indicate the orientation or positional relationship.

[0185] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "assembly" 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 direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0186] In the description of the embodiments of this utility model, specific features, structures, materials or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0187] In the description of the embodiments of this utility model, it should be understood that "-" and "~" represent a range between two values, and this range includes the endpoints. For example, "AB" represents a range greater than or equal to A and less than or equal to B. "A~B" represents a range greater than or equal to A and less than or equal to B.

[0188] In the description of the embodiments of this utility model, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0189] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A portable air pump, characterized in that, At least have: The design parameter H represents the numerical value of the air pump housing height; The design parameter W represents the width of the air pump housing. The design parameter L represents the numerical value of the length of the air pump housing; The design parameter H is in the range of 60mm to 88mm. The design parameter W has a range of 23mm to 35mm. The design parameter L has a range of 39mm to 49mm. Furthermore, the aforementioned design parameters H, W, and L can take any value within their respective ranges, which has the following properties: The portable air pump can inflate the object to be inflated to pressure P; Furthermore, the pressure P ranges from 105 psi to 150 psi; Also includes: A pressure monitoring device is configured to detect the air pressure during inflation. And / or, the display module is configured to display the inflation pressure.

2. The portable air pump according to claim 1, characterized in that, At least have: The parameter G represents the weight of a portable air pump; Furthermore, the aforementioned design parameters H, W, and L can take any value within their respective ranges, which has the following properties: The value range of parameter G is 80g to 150g.

3. The portable air pump according to claim 1, characterized in that, The volume of the portable air pump's cylinder before compression is V1: The compressed volume is V2: And it satisfies: 16≤V1 / V2≤60; Where D4 is the inner diameter of the cylinder, K is the stroke of the cylinder, s is the clearance of the cylinder, t is the thickness of the air outlet, and d is the diameter of the air outlet.

4. The portable air pump according to claim 1, characterized in that, include: The battery is disposed inside the air pump housing and arranged adjacent to one side wall of the air pump housing; The driving component is disposed inside the air pump housing and is connected to the battery control unit; A pressure generating component is disposed inside the housing and connected to the driving component; The air pressure generating component is arranged adjacent to another side wall of the air pump housing.

5. The portable air pump according to claim 4, characterized in that, The pressure generating component includes: A transmission structure, connected to the driving component, is used to convert the rotational motion of the driving component into reciprocating linear motion; The piston structure is connected to the transmission structure and compresses and depressurizes the internal gas when receiving the reciprocating motion of the transmission structure.

6. The portable air pump according to claim 5, characterized in that, The transmission structure includes: Eccentric wheel and connecting rod; The eccentric wheel is connected to the drive end of the drive component; The connecting rod and the eccentric wheel form an eccentric connection; The piston structure includes: Piston chamber and resilient seal; The elastic seal is slidably connected to the piston chamber and is connected to the connecting rod.

7. The portable air pump according to claim 6, characterized in that, Including the air inflator chamber; The air-inflating chamber is unidirectionally connected to the piston chamber; The one-way communication means that airflow can only enter the air-inflating chamber from the piston chamber.

8. The portable air pump according to claim 7, characterized in that, The air-inflating chamber is provided with an air-inflating port; Furthermore, the axis of the air inlet is perpendicular to the axis of the air inlet chamber; Furthermore, the axes of the air pump chamber and the piston chamber are aligned with the height direction of the air pump housing.

9. The portable air pump according to claim 7, characterized in that, include: The detection chamber is connected to the air pump chamber and is located above the air pump chamber in the height direction of the air pump housing; Furthermore, the air pressure monitoring device is located inside the detection chamber.

10. The portable air pump according to claim 7, characterized in that, include: A unidirectional flow guide structure is disposed between the piston chamber and the air pumping chamber.

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