A portable outdoor waterproof electric air pump

Abstract

This invention relates to the field of portable outdoor equipment technology, specifically to a portable outdoor waterproof electric air pump, comprising a shell and a mechanism disposed within the shell. The air inlet area and the air outlet area are arranged adjacently and located in the same area on the shell. A sealing component is connected to the shell. The air inlet area and the air outlet area have a sealed state and an open state. In the sealed state, the sealing component simultaneously seals the air inlet area and the air outlet area. In the open state, the air inlet area is connected to the outside. By arranging the air inlet area and the air outlet area in the same area outside the shell, this invention allows the two airflow openings of the air pump to be simultaneously covered and sealed by the same sealing component. Without affecting the normal air intake and exhaust during the inflation process, it achieves overall waterproof protection for the airflow channel of the electric air pump in the stored state, eliminating the reliance on external waterproof bags in existing technologies.

Description

Technical Field

[0001] This invention relates to the field of portable outdoor equipment technology, specifically to a portable outdoor waterproof electric air pump. Background Technology

[0002] In daily life, most cyclists have experienced the frustration of not being able to find an air pump. Traditionally, bicycles and air pumps are separate, which is inconvenient for cyclists. To inflate bicycle tires when they are flat, some people attach the air pump to the bicycle using a pump holder or keep it in their cycling bag for easy access. However, when it rains while cycling outdoors, rainwater can easily enter the air pump, damaging the circuit board and causing the pump to break down, resulting in significant losses.

[0003] Existing technologies typically use waterproof bags or other waterproof caps to protect mechanical or electric air pumps from water damage, such as using an external waterproof bag to prevent rainwater from entering the pump casing. However, waterproof bags are separate accessories, and users often forget to carry them when cycling. If rain occurs during a ride, the electric air pump can get wet and be damaged, causing financial loss to the user.

[0004] Furthermore, since electric air pumps need to draw air from the outside during inflation, existing technologies generally believe that it is difficult for electric air pumps to achieve complete waterproofing in their own structure. Therefore, waterproofing solutions have long been considered only from the perspective of external accessories, ignoring the possibility of waterproofing the air pump itself at the structural design level. This has resulted in poor reliability of existing electric air pumps in harsh outdoor weather conditions. Summary of the Invention

[0005] The technical problem to be solved by this invention is that existing electric air pumps are damaged by water ingress during outdoor cycling scenarios; they can only rely on separate waterproof accessories, which causes inconvenience and poor reliability. The purpose is to provide a portable outdoor waterproof electric air pump that achieves full waterproofing without the need for additional waterproof accessories.

[0006] This invention is achieved through the following technical solution:

[0007] A portable outdoor waterproof electric air pump includes a shell and a mechanism disposed within the shell. The air pump has an air inlet area and an air outlet area on its exterior. The air inlet area and the air outlet area are arranged adjacent to each other and located in the same area on the shell.

[0008] The air cylinder also includes a sealing assembly, which has a sealing element, and the air inlet area and the air outlet area have a sealed state and an open state.

[0009] In the sealed state, the sealing element simultaneously seals the air inlet area and the air outlet area;

[0010] In the open state, the air intake area is connected to the outside.

[0011] Optionally, the mechanism includes an air nozzle and an air cylinder, the air outlet area is connected to the air nozzle, and the air outlet area is provided with a threaded structure for connecting an air pipe;

[0012] The outer surface of the housing is provided with a groove, and the air inlet area and the air outlet area are located within the groove;

[0013] The air intake area is an air intake hole provided on the outer casing;

[0014] Alternatively, the air intake area is the gap between the air nozzle of the mechanism and the outer casing;

[0015] Optionally, the groove is further provided with a charging interface and / or a through hole, the charging interface and the through hole being located in the same area of ​​the housing as the venting area, and the sealing member simultaneously sealing the charging interface and the through hole in the sealed state;

[0016] The through-hole is used for heat dissipation and / or as the air intake area;

[0017] The charging interface is used for charging and / or as the air intake area.

[0018] Optionally, the sealing element is provided with waterproof ribs, which are interference-fitted with the inner wall of the groove in the sealed state;

[0019] The groove is provided with a sealing element connection hole; the sealing element further includes a connecting part connected to the sealing element, the connecting part passing through the sealing element connection hole, and the end of the connecting part away from the sealing element is provided with an undercut structure.

[0020] Optionally, the mechanism includes an air nozzle and an air cylinder; the air cylinder also includes an air nozzle cap, which is located on the outside of the housing and connected to the air nozzle, and the air inlet area and the air outlet area are both openings provided on the air nozzle cap; the air nozzle cap is provided with a threaded structure for connecting an air pipe;

[0021] Optionally, the sealing element is provided with a waterproof rib, which is located on the side of the sealing element in the sealed state and is interference-fitted with the inner wall of the air nozzle cap to form a waterproof seal.

[0022] The sealing assembly further includes a connecting piece and a connecting arm, wherein the connecting piece is connected to the sealing element through the connecting arm, and the connecting piece is sandwiched between the air nozzle cap and the housing.

[0023] Optionally, the connecting piece is further provided with a clearance area corresponding to the positions of the air intake area and the air outlet area, and the clearance area clears the air intake area and the air outlet area in the open state.

[0024] Optionally, the air nozzle is fixed inside the housing by screws, and the cylinder is fixed to the air nozzle by screws. The screw holes on the air nozzle for fixing the cylinder and the screw holes on the housing for fixing the air nozzle are arranged alternately or perpendicularly to each other.

[0025] Optionally, the valve cap is provided with a positioning groove, and the side of the valve facing the valve cap is provided with a positioning protrusion that cooperates with the positioning groove. The positioning protrusion cooperates with the positioning groove to restrict the rotation of the valve cap relative to the valve. The valve and the valve cap are connected by screws, and the valve and the valve cap are interference fit.

[0026] The valve cap is provided with a groove, and the sealing element is provided with a clearance position that cooperates with the groove. The clearance position cooperates with the groove to restrict the rotational movement of the sealing element relative to the valve cap.

[0027] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0028] By arranging the air inlet and outlet areas in the same area on the outer shell, the two airflow openings of the air cylinder can be covered and sealed by the same seal at the same time. Without affecting the normal air intake and exhaust during the inflation process, the overall waterproof protection of the airflow channel of the electric air cylinder in the stored state is achieved, eliminating the dependence of existing technologies on external waterproof bags.

[0029] Furthermore, by keeping the seal connected to the housing, the seal remains attached to the housing in both open and closed states, thus preventing water damage to the air pump caused by the loss or forgetting to carry the detachable waterproof accessories during outdoor use, thereby improving the reliability of outdoor use.

[0030] By incorporating waterproof ribs into the seal, which are press-fitted against the inner wall of the groove or the inner wall of the valve cap, the waterproof rating of the sealing interface is improved. Attached Figure Description

[0031] The accompanying drawings illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the principles of the invention. These drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, but do not constitute a limitation on the embodiments of the present invention.

[0032] Figure 1This is a schematic diagram of the overall structure of the portable outdoor waterproof electric air pump provided in Embodiment 2 of the present invention;

[0033] Figure 2 This is a schematic diagram showing the sealed and open states of the portable outdoor waterproof electric air pump provided in Embodiment 2 of the present invention.

[0034] Figure 3 This is a cross-sectional view of the portable outdoor waterproof electric air pump provided in Embodiment 2 of the present invention;

[0035] Figure 4 This is a schematic diagram of the sealing component of the portable outdoor waterproof electric air cylinder provided in Embodiment 2 of the present invention;

[0036] Figure 5 This is a schematic diagram of the valve cap of the portable outdoor waterproof electric air pump provided in Embodiment 2 of the present invention;

[0037] Figure 6 This is a schematic diagram of the assembly of the nozzle and cylinder in the portable outdoor waterproof electric air pump provided in Embodiment 2 of the present invention.

[0038] Figure 7 An exploded view of the nozzle and cylinder of the portable outdoor waterproof electric air pump provided in Embodiment 2 of the present invention;

[0039] Figure 8 This is a schematic diagram of the overall structure of the portable outdoor waterproof electric air pump provided in Embodiment 3 of the present invention;

[0040] Figure 9 This is a partially enlarged schematic diagram of the recessed area of ​​the outer shell of the portable outdoor waterproof electric air pump provided in Embodiment 3 of the present invention;

[0041] Figure 10 This is a cross-sectional view of the portable outdoor waterproof electric air pump provided in Embodiment 3 of the present invention;

[0042] Figure 11 A schematic diagram of the sealing component of the portable outdoor waterproof electric air cylinder provided in Embodiment 3 of the present invention;

[0043] Figure 12 This is an exploded view of the portable outdoor waterproof electric air pump provided in Embodiment 3 of the present invention;

[0044] Figure 13 This is another structural schematic diagram of the recessed area of ​​the outer shell of the portable outdoor waterproof electric air pump provided in Embodiment 3 of the present invention.

[0045] Reference numerals: 1-Outer shell; 2-Nozzle; 3-Cylinder; 4-Inlet area; 5-Outlet area; 6-Seal; 7-Nozzle cap; 8-Connecting piece; 9-Connecting arm; 10-Fasting screw; 11-Groove; 12-Seal connection hole; 13-Connecting part; 14-Undercut structure; 15-Threaded structure; 16-Nozzle fixing hole; 17-Cylinder fixing hole; 18-Positioning groove; 19-Positioning protrusion; 20-Pass groove; 21-Allowing position; 22-Allowing area; 23-Waterproof rib; 24-Charging interface; 25-Nozzle sealing silicone; 26-Through hole. Detailed Implementation

[0046] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the invention.

[0047] It should also be noted that, for ease of description, only the parts relevant to the present invention are shown in the accompanying drawings.

[0048] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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.

[0049] 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 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 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.

[0050] Where there is no conflict, the embodiments and features described in the present invention can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0051] Example 1

[0052] A portable outdoor waterproof electric air pump includes a shell 1 and a mechanism disposed inside the shell 1. The mechanism includes an air nozzle 2 and a cylinder 3. The air pump is provided with an air inlet area 4 and an air outlet area 5. The air inlet area 4 and the air outlet area 5 are arranged adjacent to each other and located in the same area of ​​the shell 1. The air outlet area 5 is connected to the air nozzle 2. The air inlet area 4 is connected to the interior of the shell 1 of the air pump, which can provide a channel for external gas to enter the air pump for the cylinder 3.

[0053] The mechanism includes a motor, cylinder 3, piston, and nozzle 2, which are used to compress external gas through the reciprocating motion of the piston driven by the motor and discharge it from the nozzle 2. The cylinder 3 is used to house the piston and provide compression space, and the nozzle 2 serves as the output channel for the compressed gas, sending the gas compressed by the cylinder 3 to the outlet area 5. The outer shell 1 is used to house and protect the mechanism, and at the same time provides mounting positions for various external interfaces and buttons.

[0054] The intake area 4 is the passage for external gas to enter the cylinder 3. When the air cylinder is working, external gas enters the cylinder 3 through the intake area 4, is compressed by the piston, and flows out through the nozzle 2 from the outlet area 5 to the tire or other inflatable object. The outlet area 5 is the discharge passage for compressed gas and is directly connected to the nozzle 2.

[0055] The air cylinder also includes a sealing assembly having a seal 6 made of a flexible material with good waterproof properties, preferably silicone, rubber or other flexible materials with waterproof and resilient properties.

[0056] The sealing assembly is used to waterproof seal the air inlet area 4 and the air outlet area 5 in the stored state. The sealing assembly includes at least the sealing element 6 mentioned above, and optionally also includes a connecting structure for maintaining the sealing element 6 connected to the housing 1 (or the air nozzle cap 7 in subsequent embodiments) and / or a waterproof rib 23 located on the sealing element 6. The connecting structure is, for example, at least one of the connecting part, connecting piece 8 and connecting arm 9 mentioned below, and the specific form is described in the subsequent embodiments.

[0057] The key improvement in this embodiment lies in concentrating the air inlet area 4 and air outlet area 5, which were originally located at different positions on the outer shell 1 in existing electric air cylinders, into the same area outside the outer shell 1, making the two airflow openings spatially adjacent to each other. The technical advantages of this adjacent arrangement are twofold: firstly, by concentrating the air inlet area 4 and air outlet area 5 in the same area, the operating area is centralized and unified, improving ease of use; secondly, and more importantly, this arrangement allows the air inlet area 4 and air outlet area 5 to be simultaneously covered by a single sealing element 6, thus achieving overall waterproof protection of the air cylinder's airflow channel through a single sealing operation when the cylinder is not inflated and stored.

[0058] In this embodiment, the connection between the sealing component and the outer casing 1 has two optional implementation methods.

[0059] One embodiment features a seal component without a connection between itself and the outer casing 1. In this configuration, the seal 6 can cover both the air inlet area 4 and the air outlet area 5 in a single, sealed state. The seal 6 and the outer casing 1 can be detachably connected, for example, by snap-fitting, screwing, or embedding, allowing the seal 6 to be detachably mounted on the outer casing 1 in a sealed state. When inflation is needed, the seal 6 can be removed from the outer casing 1. In this implementation, the seal 6 itself is still provided as an accessory with the air pump. When storing, simply replacing the seal completes the one-time waterproofing operation, eliminating the need for additional waterproof bags or other external accessories.

[0060] Secondly, there is a connection between the sealing component and the outer shell 1. The sealing element 6 is always connected to the outer shell 1 through the connection. That is, the sealing element 6 is not a separate component independent of the air cylinder, but forms an integrated structure with the outer shell 1 through the connection (such as fixing, snap-fit ​​or embedding). This ensures that the sealing element 6 is always connected to the air cylinder during use and will not be forgotten, lost or not carried with you. This fundamentally solves the defects of separate waterproof accessories in the prior art.

[0061] In this article, the connecting part refers to the connecting structure extending from the sealing member 6. The connecting part is used to connect the sealing member 6 to the outer shell 1 or the air nozzle cap 7 so that the sealing member 6 is always kept on the air cylinder. For example, it can be a columnar, rod-shaped, sheet-shaped or similar extension, and it is engaged with the corresponding position on the outer shell 1 or the air nozzle cap 7 by means of snap-fit, fastening or screwing, so as to realize the integrated connection between the sealing member 6 and the air cylinder body. For specific forms, please refer to the following embodiments.

[0062] The air intake area 4 and the air outlet area 5 have two working states: sealed state and open state.

[0063] When in the open state, both the air intake area 4 and the air outlet area 5 are connected to the outside, that is, the seal 6 is lifted or moved out of the positions of the air intake area 4 and the air outlet area 5. At this time, external gas can enter the cylinder 3 through the air intake area 4, and be discharged from the air cylinder through the air nozzle 2 and the air outlet area 5, so as to realize the normal air inflation function.

[0064] In the sealed state, the sealing element 6 simultaneously seals the air inlet area 4 and the air outlet area 5; that is, the sealing element 6 covers the air inlet area 4 and the air outlet area 5, achieving an overall waterproof seal for the airflow channel of the air cylinder.

[0065] When users encounter wet environments such as rain while cycling or going out outdoors, they can simply put the seal 6 back on to prevent rainwater from entering the inside of the outer shell 1 through the air inlet area 4 and the air outlet area 5 and contacting the mechanism or circuit board, without wearing any additional waterproof accessories. This protects the air pump from damage caused by rainwater intrusion.

[0066] Example 2

[0067] This embodiment further illustrates a specific implementation of the present invention based on Embodiment 1. In this embodiment, the sealing element 6 cooperates with the air nozzle cap 7 to achieve a snap-fit ​​connection with the outer shell 1 and simultaneously provide a sealing function.

[0068] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, when switching between the open and sealed states, the seal 6 remains connected to the housing 1.

[0069] In the portable outdoor waterproof electric air pump provided in this embodiment, the air pump also includes an air nozzle cap 7. One end of the air nozzle cap 7 is embedded inside the outer shell 1 and connected to the air nozzle 2. The other end of the air nozzle cap 7 is exposed outside the outer shell 1. The air nozzle cap 7 is used as a supporting component for the air inlet area 4 and the air outlet area 5. Both the air inlet area 4 and the air outlet area 5 are opened on the air nozzle cap 7.

[0070] The valve cap 7 has an air outlet area 5, which is located at the center of the valve cap 7 and is connected to the valve 2; the valve cap 7 also has one or more air inlet areas 4, which are distributed around the air outlet area 5.

[0071] In this embodiment, the specific distribution of the air intake region 4 relative to the air outlet region 5 is not limited, and various arrangement forms can be adopted:

[0072] One is a surrounding distribution, that is, one or more air intake areas 4 are distributed around the air outlet area 5, forming a completely closed air intake channel layout around the air outlet area 5.

[0073] The second is a single-sided distribution, that is, all air intake areas 4 are concentrated on the same side of the air outlet area 5. This arrangement makes it easier to leave space on the other side of the nozzle cap 7 to arrange other functional structures.

[0074] Thirdly, it is distributed on both sides, that is, the air intake area 4 is set on opposite sides of the air outlet area 5. For example, one or a group of air intake areas 4 are set on the left and right sides of the air outlet area 5 to achieve symmetrical arrangement.

[0075] Fourthly, there is a local arc-shaped distribution, that is, more than one air intake area 4 is distributed only along a part of the arc segment around the outer perimeter of the air outlet area 5, for example, only occupying half a circle, one-third circle or other arc segment range around the outer perimeter of the air outlet area 5, and no air intake area 4 is set in the remaining arc segment.

[0076] All of the above-mentioned distribution methods can enable external gas to enter the interior of the housing 1 through the air intake area 4, providing an air intake passage for the cylinder 3. Those skilled in the art can flexibly select the distribution method of the air intake area 4 according to the specific shape and size of the nozzle cap 7 and the matching requirements with other structures on the housing 1.

[0077] The valve cap 7 is connected to the housing by fastening screws 10. That is, the valve cap 7 is provided with evenly distributed countersunk holes, with at least two countersunk holes, preferably two to four. The fastening screws 10 pass through the countersunk holes from the surface of the valve cap 7 and are screwed into the screw holes on the valve 2, thereby fixing the valve cap 7 to the valve 2.

[0078] In this embodiment, the sealing element 6 is connected to the outer shell 1 via a connecting piece 8 and a connecting arm 9. The connecting piece 8 is connected to the sealing element 6 via the connecting arm 9. The connecting piece 8 is sandwiched between the air nozzle cap 7 and the outer shell 1. The sealing element 6 is used to seal the air inlet area 4 and the air outlet area 5 on the air nozzle cap 7. During assembly, the connecting piece 8 is placed in the space between the end cap of the air nozzle cap 7 and the outer shell 1. Then, the fastening screw 10 is passed through the countersunk hole on the air nozzle cap 7 and tightened, so that the air nozzle cap 7, the connecting piece 8, the outer shell 1, and the air nozzle 2 are clamped and connected together by the fastening screw 10.

[0079] Therefore, the seal 6 remains connected to the nozzle cap 7 and the housing 1 throughout its entire lifespan via the connecting piece 8 and the connecting arm 9, fundamentally eliminating the problem of water ingress and damage to the air pump due to users forgetting or losing waterproof accessories.

[0080] In another embodiment of this invention, the sealing element 6 may not be connected to the nozzle cap 7 via the connecting piece 8 and the connecting arm 9. That is, the connecting piece 8 and the connecting arm 9 are omitted, and the sealing element 6 is detachably fitted onto the nozzle cap 7. When the air inlet area 4 and the air outlet area 5 are in a sealed state, the sealing element 6 is connected to the nozzle cap 7; when the air inlet area 4 and the air outlet area 5 are in a non-sealed state, the sealing element 6 is separated from the nozzle cap 7.

[0081] The sealing element 6 is provided with a waterproof rib 23. In the sealed state, the waterproof rib 23 is located on the side of the sealing element 6 and is interference-fitted with the inner wall of the air nozzle cap 7 to form a waterproof seal.

[0082] like Figure 4As shown, the sealing element 6 includes a main body portion for covering the valve cap 7. In the sealed state, the main body portion seals the air inlet area 4 and the air outlet area 5 on the valve cap 7. The sealing element 6 is provided with waterproof ribs 23, which are arranged around the sidewall of the main body portion of the sealing element 6. When the sealing element 6 is closed onto the valve cap 7, the waterproof ribs 23 are press-fitted with the inner wall or sidewall of the valve cap 7, generating continuous contact pressure due to elastic compression, forming a tight elastic sealing interface, thereby achieving a waterproof sealing effect.

[0083] A valve sealing silicone 25 is provided between the valve cap 7 and the valve 2. The valve sealing silicone 25 is used to provide a seal when air is pumped into the valve. The valve sealing silicone 25 is sandwiched between the end face of the valve cap 7 facing the valve 2 and the end face of the valve 2 facing the valve cap 7, forming an annular sealing interface around the outlet end of the valve 2 to prevent high pressure gas from leaking from the assembly gap between the valve cap 7 and the valve 2 during the process of the high pressure gas entering the outlet area 5 of the valve cap 7 from the valve 2.

[0084] The threaded structure 15 is set on the valve cap 7 and located on the outer periphery of the air outlet area 5. When an external air hose is needed to inflate the tire, the connector of the air hose can be screwed onto the threaded structure 15 to achieve a reliable connection between the air cylinder and the air hose; for tool-free inflation scenarios, the valve cap 7 can also be pressed directly onto the tire valve for inflation.

[0085] To prevent the valve cap 7 from rotating relative to the valve 2 after assembly, the valve cap 7 is provided with a positioning groove 18. The side of the valve 2 facing the valve cap 7 is provided with a positioning protrusion 19 that cooperates with the positioning groove 18. During assembly, the positioning protrusion 19 cooperates with the positioning groove 18 to restrict the rotation of the valve cap 7 relative to the valve 2, ensuring that the air outlet area 5 on the valve cap 7 is always aligned with the air outlet end of the valve 2.

[0086] The valve cap 7 is provided with a groove 20, and the seal 6 is provided with a clearance position 21 that cooperates with the groove 20. The clearance position 21 cooperates with the groove 20 to restrict the circumferential rotation of the seal 6 relative to the valve cap 7.

[0087] In addition, the connecting piece 8 is also provided with a clearance area 22 corresponding to the positions of the air intake area 4 and the air outlet area 5. When the clearance area 22 is open, it avoids the air intake area 4 and the air outlet area 5, ensuring that the air intake area 4 and the air outlet area 5 are unobstructed from the outside during the inflation process.

[0088] like Figure 6 and Figure 7As shown, in this embodiment, the connection relationship between the nozzle 2, cylinder 3, and housing 1 is as follows: the nozzle 2 is fixed inside the housing 1 by screws, and the cylinder 3 is fixed to the nozzle 2 by screws. The screw holes on the nozzle 2 for fixing the cylinder 3 and the screw holes on the housing 1 for fixing the nozzle 2 are arranged alternately or perpendicularly to each other. Furthermore, the nozzle 2 and the nozzle cap 7 are connected by screws, and an interference fit is used between the nozzle 2 and the nozzle cap 7. This utilizes the axial clamping force provided by the screws to ensure that the nozzle cap 7 does not loosen relative to the nozzle 2, and the interference fit further eliminates the assembly gap between the nozzle 2 and the nozzle cap 7, preventing high-pressure gas from leaking from the assembly gap.

[0089] Staggered arrangement: Two sets of screw holes are staggered along the circumference of the nozzle 2. For example, two screw holes for fixing the nozzle 2 to the end cap of the housing 1 (i.e., nozzle fixing hole 16) are arranged first on the circumference of the nozzle 2, and then a screw hole for fixing the cylinder 3 to the nozzle 2 (i.e., cylinder fixing hole 17) is arranged between the two screw holes. The two sets of screw holes are arranged efficiently within the limited circumferential area of ​​the nozzle 2, avoiding interference between the screw holes and facilitating miniaturization design.

[0090] The cylinder fixing hole 17 on the nozzle 2 is arranged perpendicularly to each other, forming a 90-degree angle with the nozzle fixing hole 16 on the nozzle 2. That is, the two sets of screws are screwed into the nozzle 2 in two orthogonal directions respectively. This allows the nozzle 2 to be locked from two directions, which facilitates the adjustment of the air outlet area 5 of the nozzle 2 as needed during assembly, thereby meeting the requirements of different shell 1 groove 11 arrangements on the air outlet direction of the nozzle 2.

[0091] The working process of this embodiment is as follows: When inflation is needed, the seal 6 is lifted off the valve cap 7. At this time, the seal 6 remains connected to the valve cap 7 by the connecting arm 9 and does not detach. The user screws the threaded structure 15 of the valve cap 7 onto the air tube or presses it directly onto the valve. After starting the air pump, the mechanism works, and external gas enters the housing 1 through the air intake area 4 on the valve cap 7, is compressed by the piston in the cylinder 3, and is discharged from the valve 2 through the air outlet area 5 of the valve cap 7, entering the tire or other inflatable object. After inflation is finished, the seal 6 is closed on the valve cap 7. The sealing body of the seal 6 and the waterproof rib 23 together provide waterproof protection for the air intake area 4 and the air outlet area 5 on the valve cap 7.

[0092] Example 3

[0093] This embodiment provides another specific implementation of the present invention based on Embodiment 1. In this embodiment, the air nozzle 2 is disposed inside the outer casing 1, and a groove 11 is directly provided on the outer casing 1 as a sealing area. The sealing element 6 and the inverted structure 14 cooperate to achieve an integrated connection between the sealing element 6 and the outer casing 1.

[0094] like Figure 8 , Figure 9 , Figure 10 , Figure 11 and Figure 12 As shown, in the portable outdoor waterproof electric air pump provided in this embodiment, the outer surface of the outer shell 1 is provided with a groove 11, and the groove 11 is provided with a sealing connection hole 12. The air inlet area 4 and the air outlet area 5 are located in the groove 11. The groove 11 constitutes the "same area" where the air inlet area 4 and the air outlet area 5 are located in this embodiment. By concentrating the two airflow openings in the groove 11, the sealing element 6 can cover and seal all openings that need waterproof protection at one time.

[0095] The air nozzle 2 is installed inside the housing 1, with the air outlet end of the air nozzle 2 facing the outer surface of the housing 1. A through hole corresponding to the position of the air outlet end of the air nozzle 2 is provided on the bottom wall of the groove 11. The air nozzle 2 passes through the through hole or is connected to the through hole, thereby forming an air outlet area 5 at the bottom of the groove 11.

[0096] The specific formation method of air intake zone 4 is not limited, and various implementation forms can be adopted:

[0097] Firstly, the air intake area 4 is a through hole set on the groove 11, through which external gas enters the interior of the outer shell 1; the number, shape and arrangement of the air intake holes are not limited, and can be round holes, elongated holes, waist-shaped holes, etc., and one or more can be arranged according to airflow requirements.

[0098] Secondly, the air intake area 4 is the gap between the air nozzle 2 and the outer casing 1. That is, when assembling the mechanism, a gap is maintained between the corresponding mating surfaces of the air nozzle 2 and the outer casing 1, and external gas enters the cavity where the cylinder 3 is located through the gap. This method eliminates the need for a separate opening on the outer casing 1.

[0099] There is at least one air intake area 4. The air intake area 4 is distributed around the air outlet area 5, or located on one or both sides of the air outlet area 5, or distributed along a portion of the outer periphery of the air outlet area 5. The specific distribution method can be flexibly selected according to the shape and size of the groove 11 and the matching requirements with other structures on the outer shell 1.

[0100] In this embodiment, the sealing member 6 is connected to the outer shell 1 through the connecting part 13. The connecting part 13 passes through the sealing member connecting hole 12, and the end of the connecting part 13 away from the sealing member 6 is provided with an undercut structure 14 to prevent the connecting part 13 from coming out of the sealing member connecting hole 12.

[0101] The outer diameter of the inverted structure 14 is larger than the inner diameter of the sealing connection hole 12. When the connecting part 13 passes through the sealing connection hole 12, the inverted structure 14 forms a snap-lock limit on the inner side of the groove 11 to prevent the connecting part 13 from coming out of the sealing connection hole 12, thereby realizing the snap-lock connection between the sealing part 6 and the outer shell 1.

[0102] The seal 6 is always integrated with the housing 1. When the seal is open, it can be rotated around the connecting part 13 without being completely separated from the housing 1, thus completely avoiding the situation where the seal 6 is lost or forgotten.

[0103] In another embodiment of this invention, the seal 6 may not be connected to the housing 1 via the connecting part 13, that is, the seal connecting hole 12 on the housing 1 and the connecting part 13 on the seal 6 are omitted. The seal 6 is detachably engaged with the groove 11. When the air inlet area 4 and the air outlet area 5 are in a sealed state, the seal 6 is connected to the housing 1; when the air inlet area 4 and the air outlet area 5 are in a non-sealed state, the seal 6 is separated from the housing 1.

[0104] The sealing element 6 is provided with waterproof ribs 23, which are arranged around the side wall of the main body of the sealing element 6. In the sealed state, the waterproof ribs 23 are interference-fitted with the inner wall of the groove 11 to form an elastic sealing interface, thereby achieving a tight waterproof seal for all openings in the groove 11.

[0105] like Figure 9 As shown, the intake area 4 is distributed around the exhaust area 5, and there is at least one intake area 4. Alternatively, the intake area 4 can be the gap between the valve 2 of the mechanism and the outer shell 1; that is, when assembling the mechanism, the valve 2 and the outer shell 1 are not completely sealed, but a certain width of annular or radial gap is left as a channel for external gas to enter the cylinder 3. Therefore, there is no need to separately open the intake area 4 on the outer shell 1, and the intake channel can be naturally formed by utilizing the assembly structure.

[0106] like Figure 12 As shown, in this embodiment, the air nozzle 2 is fixed inside the housing 1 by screws, and the cylinder 3 is fixed to the air nozzle 2 by screws. The screw holes on the air nozzle 2 for fixing the cylinder 3 and the screw holes on the housing 1 for fixing the air nozzle 2 can be arranged in an alternating or perpendicular manner. For the specific forms of the alternating and perpendicular arrangements, please refer to the relevant description in Embodiment 2.

[0107] Example 4

[0108] This embodiment provides another optional structural example based on embodiment three.

[0109] The recess 11 is also provided with a charging interface 24 (e.g., a Type-C charging interface or other type of power input interface) and / or a through hole 26. The charging interface 24 and the through hole 26 are located in the same area of ​​the housing 1 (i.e., the same recess 11) as the air outlet area 5. In the sealed state, the seal 6 simultaneously seals the charging interface 24 and the through hole 26, thereby integrating the waterproofing of the airflow channel of the air cylinder with the waterproofing of the charging interface 24 and the through hole 26 into a single sealing operation. The charging interface 24 and the through hole 26 of outdoor electric products are also one of the main paths for rainwater intrusion. By incorporating the charging interface 24 and the through hole 26 into the same area, the overall waterproofing coverage of the device is expanded.

[0110] like Figure 13 As shown, the through hole 26 penetrates the wall of the outer casing 1 and serves both as a heat dissipation and air intake function when the air cylinder is working. The position of the through hole 26 can be flexibly set, preferably corresponding to the heat-generating components of the air cylinder during operation. Therefore, the through hole 26 provides a heat dissipation channel for the motor and control circuit when the air cylinder is working, and at the same time serves as an air intake passage for external gas to enter the cylinder 3, realizing the multiple functions of heat dissipation and air intake.

[0111] The air outlet area 5 is provided with a threaded structure 15 for connecting the air hose. Since the air outlet area 5 is located on the groove 11 in this embodiment, the tire valve cannot be directly pressed into the air outlet area 5 during use. Therefore, connecting the external air hose via the threaded structure 15 is the primary inflation method. The threaded structure 15 can be an external thread or an internal thread, depending on the type of the matching air hose connector.

[0112] The working process of this embodiment is as follows: When inflation is required, the seal 6 is opened. At this time, the seal 6 is still connected to the outer shell 1 through the connecting part 13 and the inverted structure 14. The connector of the external air pipe is screwed onto the threaded structure 15 of the air outlet area 5, and the other end is connected to the tire valve. The inflator is then started. When the mechanism is working, external gas enters through the air intake area 4, is compressed by the piston in the cylinder 3, and is discharged from the valve 2 and the air outlet area 5, entering the tire. After inflation is completed, the external air pipe is removed, and the seal 6 is closed into the groove 11. The waterproof rib 23 of the seal 6 is press-fitted with the inner wall of the groove 11, thus simultaneously providing waterproof protection for the charging interface 24, the air intake area 4, and the air outlet area 5. If a through hole 26 is provided, it will also provide heat dissipation for the motor when gas enters the cylinder 3.

[0113] In the description of this specification, the references to terms such as "one embodiment / mode," "some embodiments / modes," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment / mode or example is included in at least one embodiment / mode or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment / mode or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments / modes or examples. Furthermore, without contradiction, those skilled in the art can combine and integrate the different embodiments / modes or examples described in this specification, as well as the features of different embodiments / modes or examples.

[0114] 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 at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0115] Those skilled in the art should understand that the above embodiments are merely for illustrating the present invention and are not intended to limit the scope of the invention. Those skilled in the art can make other changes or modifications based on the above invention, and these changes or modifications still fall within the scope of the present invention.

Claims

1. A portable outdoor waterproof electric air pump, comprising a housing (1) and a mechanism disposed within the housing (1), characterized in that, The air cylinder is provided with an air inlet area (4) and an air outlet area (5), the air inlet area (4) and the air outlet area (5) are arranged adjacently and located in the same area on the outer shell (1); The air cylinder also includes a sealing assembly, which has a sealing element (6), and the air inlet area (4) and the air outlet area (5) have a sealed state and an open state; In the sealed state, the seal (6) simultaneously seals the air inlet area (4) and the air outlet area (5). In the open state, the air intake area (4) is connected to the outside.

2. The portable outdoor waterproof electric air pump according to claim 1, characterized in that, The mechanism includes a nozzle (2) and a cylinder (3), and the air outlet area (5) is provided with a threaded structure (15) for connecting the air pipe. The surface of the outer shell (1) is provided with a groove (11), and the air inlet area (4) and the air outlet area (5) are located in the groove (11); The air intake area (4) is an air intake hole provided on the outer casing (1); Alternatively, the air intake area (4) is the gap between the air nozzle (2) of the mechanism and the outer casing (1).

3. The portable outdoor waterproof electric air pump according to claim 2, characterized in that, The groove (11) is also provided with a charging interface (24) and / or a through hole (26). The charging interface (24) and the through hole (26) are located in the same area of ​​the outer shell (1) as the venting area (5); in the sealed state, the sealing element (6) simultaneously seals the charging interface (24), the through hole (26) and the venting area (5). The through hole (26) is used for heat dissipation and / or as the air intake area (4); The charging port (24) is used for charging and / or as the air intake area (4).

4. The portable outdoor waterproof electric air pump according to claim 2, characterized in that, The sealing element (6) is provided with a waterproof rib (23), and the waterproof rib (23) is in an interference fit with the inner wall of the groove (11) in the sealed state; The groove (11) is provided with a sealing connection hole (12); The sealing assembly further includes a connecting part (13) connected to the sealing element (6), the connecting part (13) passing through the connecting hole (12) of the sealing element, and the end of the connecting part (13) away from the sealing element (6) is provided with an undercut structure (14).

5. The portable outdoor waterproof electric air pump according to claim 1, characterized in that, The mechanism includes a nozzle (2) and a cylinder (3); the air cylinder also includes a nozzle cap (7), which passes through the outer shell (1) and is connected to the nozzle (2). The air inlet area (4) and the air outlet area (5) are both openings provided on the nozzle cap (7); the nozzle cap (7) is provided with a threaded structure (15) for connecting the air pipe.

6. The portable outdoor waterproof electric air pump according to claim 5, characterized in that, The sealing element (6) is provided with a waterproof rib (23). The waterproof rib (23) is located on the side of the sealing element (6) in the sealed state and is press-fitted with the inner wall of the air nozzle cap (7) to form a waterproof seal. The sealing assembly further includes a connecting piece (8) and a connecting arm (9), wherein the connecting piece (8) is connected to the sealing element (6) through the connecting arm (9), and the connecting piece (8) is sandwiched between the air nozzle cap (7) and the outer shell (1).

7. The portable outdoor waterproof electric air pump according to claim 6, characterized in that, The connecting piece (8) is also provided with a clearance area (22) corresponding to the positions of the air intake area (4) and the air outlet area (5). The clearance area (22) avoids the air intake area (4) and the air outlet area (5) in the open state.

8. The portable outdoor waterproof electric air pump according to claim 6, characterized in that, The valve cap (7) is provided with a groove (20), and the connecting piece (8) is provided with a clearance position (21) that cooperates with the groove. The clearance position cooperates with the groove to restrict the rotational movement of the seal (6) relative to the valve cap (7).

9. The portable outdoor waterproof electric air pump according to claim 5, characterized in that, The valve cap (7) is provided with a positioning groove (18), and the valve (2) is provided with a positioning protrusion (19) on the side facing the valve cap (7) that cooperates with the positioning groove (18). The positioning protrusion (19) cooperates with the positioning groove (18) to restrict the rotation of the valve cap (7) relative to the valve (2). The valve (2) and the valve cap (7) are connected by screws, and the valve (2) and the valve cap (7) are interference fit.

10. The portable outdoor waterproof electric air pump according to claim 2 or 5, characterized in that, The nozzle (2) is fixed inside the housing (1) by screws, and the cylinder (3) is fixed to the nozzle (2) by screws. The screw holes on the nozzle (2) for fixing the cylinder (3) and the screw holes on the housing (1) for fixing the nozzle (2) are arranged alternately or perpendicularly to each other.

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