Detachable battery type air pump compatible with multiple air tap interfaces

Abstract

The invention discloses a detachable battery type air pump compatible with multiple air tap interfaces, and belongs to the technical field of air pumps. Comprising an inflation module and a power module which are detachably connected, the power module is used for supplying power to the inflation module, and the inflation module is used for inflating an object to be inflated; the inflation module comprises an air outlet, a first air tap connector and a second air tap connector are arranged on the air outlet and used for inflating different air taps respectively, and an air core is arranged between the first air tap connector and the second air tap connector. When one of the first air tap connector and the second air tap connector inflates an object to be inflated, the air core jacks open an air valve of an air tap on the object to be inflated, and meanwhile, the air core blocks the other air tap connector. According to the invention, high-pressure inflation can be carried out on various air nozzles, the battery can be quickly disassembled and assembled conveniently, the structure is small and light, and the convenience and sustainability are improved.

Description

Technical Field

[0001] The invention relates to a detachable battery-type air pump compatible with multiple air nozzle interfaces, belonging to the technical field of air pumps. Background Art

[0002] An air pump is a device that removes air from a closed space or adds air to a closed space. Air pumps are mainly divided into electric air pumps, manual air pumps and foot-operated air pumps. Among them, electric air pumps are electric-powered air pumps that generate air pressure by continuously compressing air with electricity. Electric air pumps are mainly used in pneumatic gluing, car inflation and other fields. Electric air pumps are more popular because they are easy to use, highly efficient, highly precise and safe to operate. However, since electric air pumps require electrical energy to drive, the power cord generally needs to be connected to the power supply when used, and it is difficult to quickly find a power supply when used outdoors. Therefore, in order to facilitate the use of users in different usage environments, the current air pump will be equipped with a battery assembly on the air pump, and the battery will be used to transmit power to the air pump, so that the air pump can be used wirelessly, which is more flexible and convenient.

[0003] However, the wireless air pumps under the existing technology are all integrated structures of air pump and battery, which is not only not conducive to the later maintenance or replacement of the battery. If you encounter certain objects (such as paddle boards, inflatable mattresses, etc.) that require the air pump to work for a long time or forget to charge the air pump, the battery life of a single battery is far from enough. In addition, the mainstream response method for inflating multiple different air nozzles under the existing technology is to use multiple accessories or air tubes to adapt to different air nozzles. Even if a small number of them use structural optimization to reduce the number of accessories or air tubes used, they still need to carry additional accessories or air tubes in essence, which not only increases the cumbersomeness of operation, but also reduces the convenience of the air pump. Finally, the air pumps under the existing technology mostly use methods such as adding high-power motors, increasing the stroke of the piston rod, or increasing the inner diameter of the cylinder to meet the needs of high-pressure inflation. Any of the above methods will increase the size of the product, which not only affects the use but also cannot be conveniently carried. If there is a way to achieve high air pressure without the need to carry additional air tubes or accessories, and the battery can be made into a detachable, compact and lightweight air pump structure, it will greatly reduce the complexity of the inflation operation and improve convenience and sustainability.

[0004] The Chinese invention patent application with application number 2022107999497 discloses an air pump compatible with French and American air nozzles, the Chinese utility model patent with application number 2022233172795 discloses a portable air pump universal air nozzle and a portable air pump, and the Chinese utility model patent with application number 2024212241417 discloses a dual-purpose bicycle air pump air nozzle. All three disclose an air pump structure that can adapt to two air nozzles of different specifications, but the structure is relatively complex and the operation is cumbersome. The Chinese patent with publication number CN218062745U discloses a detachable wireless air pump, and the utility model patent with application number 2023233561209 discloses a detachable wireless air pump. Both can realize the disassembly of the air pump battery, but the disassembly and assembly structure is not convenient enough. Summary of the invention

[0005] 1. Technical issues to be resolved

[0006] The technical problem to be solved by the present invention is to solve the problems of insufficient interface compatibility of existing wireless air pumps and difficulty in quick disassembly and assembly of battery structures.

[0007] (II) Technical solution

[0008] In order to solve the above technical problems, the present invention provides a detachable battery-powered air pump compatible with multiple air nozzle interfaces, which includes an inflation module and a power module, which are detachably connected, the power module is used to power the inflation module, and the inflation module is used to inflate the items to be inflated.

[0009] The inflation module includes an air outlet, on which a first air nozzle connector and a second air nozzle connector are provided, the first air nozzle connector and the second air nozzle connector are respectively used to inflate different air nozzles, an air core is provided between the first air nozzle connector and the second air nozzle connector, when one of the first air nozzle connector and the second air nozzle connector is used to inflate an object to be inflated, the air core pushes open the valve of the air nozzle on the object to be inflated, and at the same time, the air core blocks the other air nozzle connector.

[0010] Furthermore, a connecting passage is provided between the first air nozzle joint and the second air nozzle joint, the connecting passage is connected with the air outlet, the air core is provided in the connecting passage, when one of the first air nozzle joint and the second air nozzle joint is used to inflate the article to be inflated, the air core pushes open the valve of the air nozzle on the article to be inflated, and at the same time, the air core slides along the connecting passage to seal the other air nozzle joint.

[0011] Furthermore, a connecting pipe is provided between the first air nozzle joint and the second air nozzle joint, and the three are fixedly connected to form an inflation joint, the connecting channel runs through the inflation joint, and the inflation joint is rotatably provided at the air outlet.

[0012] Furthermore, a three-way joint is provided on the air outlet, and the three-way joint is a T-shaped three-way joint, whose abdominal port is connected to the air outlet, the inflation joint is clamped on the three-way joint and can rotate, and the connecting channel is connected to the inner cavity of the three-way joint.

[0013] Furthermore, the outer diameters of both ends of the inflatable joint are larger than the inner diameter of the inner cavity of the tee joint, the outer diameter of the middle part of the inflatable joint is smaller than the inner diameter of the inner cavity of the tee joint, the middle part of the inflatable joint is stuck in the tee joint, and its two ends respectively extend out of the two end ports of the tee joint and limit the inflatable joint to form a rotating connection, and at least one inflatable hole is provided in the middle part of the inflatable joint, and the inner cavity of the tee joint is connected with the connecting channel through the inflatable hole.

[0014] Furthermore, a first retaining ring and a second retaining ring are respectively provided at both ends of the air core, and a limiting ring is provided in the connecting channel between the first retaining ring and the second retaining ring to limit the air core. When the air core slides along the connecting channel until the first retaining ring abuts against the limiting ring, the air outlet is connected with the first air nozzle joint through the inflation hole. When the air core slides along the connecting channel until the second retaining ring abuts against the limiting ring, the air outlet is connected with the second air nozzle joint through the inflation hole.

[0015] Furthermore, an air channel is provided in the air core, the air channel runs through one end of the air core, an air port connected to the air channel is opened in the middle of the air core, the outer diameter of the air core at the position of the air port is smaller than the inner diameter of the connecting channel, the outer diameters of the two ends of the air core are not smaller than the inner diameter of the connecting channel respectively, when the air core slides along the connecting channel until the first retaining ring abuts against the limiting ring, the air outlet is connected to the first air nozzle joint through the inflation hole and the connecting channel in sequence, when the air core slides along the connecting channel until the second retaining ring abuts against the limiting ring, the air outlet is connected to the second air nozzle joint through the inflation hole, the air port, the air channel and the connecting channel in sequence.

[0016] Furthermore, a first countersunk hole adapted to a Prefabric nozzle is provided at the end of the first gas nozzle joint, and a second countersunk hole adapted to a Beauty nozzle is provided at the end of the second gas nozzle joint. The first countersunk hole and the second countersunk hole are respectively provided with internal threads matching the threads on the Prefabric nozzle and the Beauty nozzle.

[0017] Furthermore, joint sealing rings are respectively arranged outside the first gas nozzle joint and the second gas nozzle joint, gas nozzle sealing rings are respectively arranged inside the first gas nozzle joint and the second gas nozzle joint, and gas core sealing rings are respectively arranged at both ends of the gas core.

[0018] Furthermore, the inflation module also includes a shell, a brushless motor, a first gear, a second gear, an eccentric wheel and a piston rod. An air outlet is arranged at one end of the shell, and a compression chamber connected to the air outlet is arranged therein. The brushless motor is fixed in the shell and electrically connected to the power module. A first gear is arranged at the output end of the brushless motor. The second gear is rotatably arranged in the shell and meshes with the first gear. An eccentric wheel is arranged in the middle of the second gear. One end of the piston rod is rotatably connected to the eccentric wheel, and the other end extends into the compression chamber and can make reciprocating motion in the compression chamber.

[0019] (III) Beneficial effects

[0020] The above technical solution of the present invention has the following advantages:

[0021] (1) The present invention integrates a first air nozzle connector and a second air nozzle connector at the air outlet of the air pump, which can be used to inflate different types of air nozzles, so that no additional air pipes or accessories are required when using the air pump. The first air nozzle connector and the second air nozzle connector are connected by an air core to achieve the function of only selecting one inflatable connector for inflating at the same time, and the structure is simple and easy to operate.

[0022] (2) The structure of the present invention is small enough to be carried and used easily, and does not need to be held in the hand during use (the hand can be released after the air nozzle joint is fixed). The structure can also withstand high pressure inflation of about 150PSI while ensuring its small size.

[0023] (3) The power module of the present invention is detachable, so that the air pump can be applied to more scenarios. In addition, once the battery is powered off or damaged, it can be charged and repaired in time.

[0024] In addition to the technical problems solved by the present invention, the technical features of the technical solutions constituted by the present invention, and the advantages brought about by the technical features of these technical solutions described above, other technical features of the present invention and the advantages brought about by these technical features will be further explained in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 It is a schematic diagram of the axonometric view of the present invention.

[0027] Figure 2 It is a schematic side view of the present invention.

[0028] Figure 3 It is a schematic cross-sectional view of the present invention.

[0029] Figure 4 It is a schematic top view of the separation of the inflation module and the power module of the present invention.

[0030] Figure 5 It is a schematic cross-sectional view of the separation of the inflation module and the power module of the present invention.

[0031] Figure 6 for Figure 5 A partial enlarged schematic diagram.

[0032] Figure 7 for Figure 6 Schematic diagram of the inflation state using the first air nozzle connector.

[0033] Figure 8 It is a schematic diagram of an explosion diagram of the present invention.

[0034] In the figure: 1. inflation module; 2. power module; 3. air outlet; 4. first air nozzle joint; 5. second air nozzle joint; 6. air core; 7. connecting channel; 8. connecting pipe; 9. inflation joint; 10. three-way joint; 11. inflation hole; 12. first retaining ring; 13. second retaining ring; 14. limiting ring; 15. air passage; 16. air port; 17. joint sealing ring; 18. air nozzle sealing ring; 19. air core sealing ring; 20. housing; 21. brushless motor; 22. first gear; 23. second gear; 24. eccentric wheel; 25. piston rod; 26. compression chamber. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] Example 1

[0038] like Figure 1 As shown, a detachable battery-type air pump compatible with multiple air nozzle interfaces includes an inflation module 1 and a power module 2, which are detachably connected, for example, by magnetic connection, snap connection, threaded connection, and slider connection. In this embodiment, a magnetic connection is preferred, such as Figure 8 The power module 2 is used to supply power to the inflation module 1, and the inflation module 1 is used to inflate the inflatable object. The power module 2 adopts a rechargeable lithium battery structure.

[0039] like Figure 2-6 As shown, the inflation module 1 includes an air outlet 3 for providing a stable high inflation pressure (about 150PSI), and a first air nozzle connector 4 and a second air nozzle connector 5 are provided on the air outlet 3, and the first air nozzle connector 4 and the second air nozzle connector 5 are both connected to the air outlet 3, and the first air nozzle connector 4 and the second air nozzle connector 5 are respectively used to inflate different air nozzles, such as American air nozzles and French air nozzles (hereinafter referred to as American air nozzles and French air nozzles). An air core 6 is provided between the first air nozzle connector 4 and the second air nozzle connector 5, and the two share the same air core 6. When one of the first air nozzle connector 4 and the second air nozzle connector 5 is used to inflate the article to be inflated, the air core 6 pushes open the valve valve of the air nozzle on the article to be inflated, and at the same time, the air core 6 is subjected to the reaction force of the valve valve of the air nozzle on the article to be inflated, and the air core 6 is linked to block the other air nozzle connector.

[0040] More specifically, in the present embodiment, a connecting passage 7 is provided between the first air nozzle joint 4 and the second air nozzle joint 5, and the two are connected through the connecting passage 7. The connecting passage 7 is connected with the air outlet 3. The air core 6 is provided in the connecting passage 7, and the air core 6 can slide back and forth within a certain range of the connecting passage 7. When one of the first air nozzle joint 4 and the second air nozzle joint 5 is used to inflate an article to be inflated, the air core 6 pushes open the valve valve of the air nozzle on the article to be inflated. At the same time, the air core 6 is subjected to the reaction force of the valve valve of the air nozzle on the article to be inflated, and the air core 6 slides along the connecting passage 7 to seal the other air nozzle joint.

[0041] In order to prevent the high temperature generated by the inflation module 1 during operation from scalding the human body, a layer of heat-resistant soft glue is wrapped around the outer ends of the first gas nozzle connector 4 and the second gas nozzle connector 5 respectively.

[0042] Example 2

[0043] This embodiment is based on the embodiment 1, and further optimizes and refines the air pump structure, specifically:

[0044] A connecting pipe 8 is provided between the first air nozzle joint 4 and the second air nozzle joint 5, and the three are fixedly connected to form an inflation joint 9. The connecting channel 7 passes through the inflation joint 9, and the inflation joint 9 is rotatably provided at the air outlet 3. The first air nozzle joint 4 and the second air nozzle joint 5 are provided as an integrated structure, which simplifies the structure of the air pump, makes its assembly more convenient, and makes inflation more reliable.

[0045] More specifically, in the present embodiment, a preferred structure is provided for rotatably setting the inflation connector 9 at the air outlet 3: a three-way connector 10 is provided on the air outlet 3, and the three-way connector 10 is a T-shaped three-way connector 10, and its abdominal port is connected with the air outlet 3, the inflation connector 9 is clamped on the main pipe of the three-way connector 10 and can be rotated, the connecting channel 7 is connected with the inner cavity of the three-way connector 10, and when the inflation connector 9 is rotated to any position, the connecting channel 7 and the inner cavity of the three-way connector 10 are always kept connected, so as to ensure smooth inflation.

[0046] Example 3

[0047] This embodiment is based on Embodiment 2, and further optimizes and refines the rotating connection structure of the inflation joint 9 and the three-way joint 10, specifically: the outer diameters of the two ends of the inflation joint 9 are both larger than the inner diameter of the inner cavity of the main pipeline of the three-way joint 10, the outer diameter of the middle part of the inflation joint 9 is smaller than the inner diameter of the inner cavity of the three-way joint 10, the middle part of the inflation joint 9 is stuck in the three-way joint 10, and its two ends respectively extend out of the two end ports of the three-way joint 10 and limit the inflation joint 9 to form a rotating connection, and at least one inflation hole 11 is provided in the middle part of the inflation joint 9, and the inner cavity of the three-way joint 10 is connected with the connecting channel 7 through the inflation hole 11.

[0048] Since the outer diameter of the middle part of the inflation joint 9 stuck in the three-way joint 10 is smaller than the inner diameter of the inner cavity of the three-way joint 10, and the middle part of the inflation joint 9 is provided with an inflation hole 11 connecting the inner cavity of the three-way joint 10 and the connecting channel 7, when inflating, the airflow enters the three-way joint 10 from the air outlet 3, and then enters the gap between the inner cavity of the three-way joint 10 and the middle part of the inflation joint 9, and then enters the connecting channel 7 along the inflation hole 11. When the inflation joint 9 is rotated to any position, the flow process can be unobstructed, and the inflation is stable and reliable. A better option is to respectively provide inflation holes 11 on one opposite side of the middle part of the inflation joint 9 to facilitate the flow of air. Of course, it is also possible to provide multiple inflation holes 11 in a circumferential array along the middle part of the inflation joint 9.

[0049] Example 4

[0050] This embodiment is based on the embodiment 3, and further optimizes and refines the sliding connection structure between the air core 6 and the connecting channel 7. Specifically, the first retaining ring 12 and the second retaining ring 13 are respectively provided at both ends of the air core 6, and a limiting ring 14 is provided in the connecting channel 7 between the first retaining ring 12 and the second retaining ring 13 to limit the air core, specifically, the air core cannot be separated from the connecting channel 7 during the sliding process along the connecting channel 7. The back and forth sliding process will be blocked by the first retaining ring 12 or the second retaining ring 13 after reaching the limiting ring 14 and cannot continue to slide in the same direction, and can only slide back in the other direction. When the air core slides down along the connecting channel 7 until the first retaining ring 12 abuts against the limiting ring 14, as shown in FIG. Figure 7 As shown, the air core blocks the communication passage between the air outlet 3 and the second air nozzle joint 5, and the air outlet 3 is connected with the first air nozzle joint 4 through the inflation hole 11. When the air core slides along the communication passage 7 until the second retaining ring 13 or the air core sealing ring 19 abuts against the limiting ring 14, as shown in FIG. Figure 6 As shown, the air core blocks the communication path between the air outlet 3 and the first air nozzle connector 4 , and the air outlet 3 is communicated with the second air nozzle connector 5 through the inflation hole 11 .

[0051] More specifically, in this embodiment, an air channel 15 is provided in the air core, and the air channel 15 runs through one end of the air core. An air port 16 connected to the air channel 15 is provided in the middle of the air core 6. The air port 16 is a rectangular port and radially runs through the middle of the air core, so that the air flow is smoother. The outer diameter of the air core 6 at the position of the air port 16 is smaller than the inner diameter of the connecting channel 7, so that during the inflation process using the air port 16, the air core 6 can be rotated to any position and the air port 16 can always be connected to the air outlet 3 (connecting channel 7). The outer diameters of the two ends of the air core 6 are respectively equal to the inner diameter of the connecting channel 7 to ensure its air tightness, and can also be smaller than the inner diameter of the connecting channel 7 when a sealing ring is provided. When the air core slides along the connecting channel 7 until the first retaining ring 12 abuts against the limiting ring 14, as shown Figure 7 As shown, the air outlet 3 is connected to the first air nozzle joint 4 through the inflation hole 11 and the connecting channel 7 in sequence; when the air core slides along the connecting channel 7 until the second retaining ring 13 abuts against the limiting ring 14, the air outlet 3 is connected to the second air nozzle joint 5 through the inflation hole 11, the air port, the air passage 15, and the connecting channel 7 in sequence.

[0052] Example 5

[0053] This embodiment further optimizes and refines the structure of the gas nozzle joint on the basis of Embodiment 4, specifically:

[0054] The end of the first gas nozzle joint 4 is provided with a first countersunk hole adapted to a French nozzle, and the end of the second gas nozzle joint 5 is provided with a second countersunk hole adapted to a British nozzle. The first countersunk hole and the second countersunk hole are respectively provided with internal threads matching the threads on the French nozzle and the British nozzle, and the connecting channel 7 is respectively connected with the first countersunk hole and the second countersunk hole. It can be understood that the air pump in this embodiment can be used for inflating a British nozzle and a French nozzle, but can also be configured to match other gas nozzles, such as configuring the end of the first gas nozzle joint 4 to be a first countersunk hole adapted to a British nozzle (British nozzle), wherein an internal thread is provided, and in this case, the air pump can be used for inflating a British nozzle and a British nozzle, respectively.

[0055] Example 6

[0056] This embodiment is based on the embodiment 5, and further optimizes and refines the air pump structure, specifically:

[0057] The detachable battery-type air pump compatible with multiple air nozzle interfaces described in this embodiment has joint sealing rings 17 disposed outside the first air nozzle joint 4 and the second air nozzle joint 5, respectively, for sealing between the first air nozzle joint 4 and the second air nozzle joint 5 and the three-way joint 10. The first air nozzle joint 4 and the second air nozzle joint 5 are respectively provided with air nozzle sealing rings 18, which are used for sealing between the first air nozzle joint 4 and the second air nozzle joint 5 and the French nozzle and the American nozzle on the inflated object when inflating. The two ends of the air core are respectively provided with air core sealing rings 19, which are used for sealing between the air core and the connecting channel 7. The section line structure of each sealing ring is not shown in the drawings.

[0058] The specific arrangement of the sealing ring can be to arrange a sealing groove on the corresponding structure, and then embed the sealing ring in the sealing groove, such as respectively arranging sealing grooves outside the first gas nozzle joint 4 and the second gas nozzle joint 5, inside the first gas nozzle joint 4 and the second gas nozzle joint 5, and outside the two ends of the gas core. When the gas core sealing ring 19 is respectively arranged outside the two ends of the gas core, the limiting contact between the first retaining ring 12 and the second retaining ring 13 and the limiting ring 14 can be transformed into the limiting contact between the gas core sealing ring 19 on the gas core and the limiting ring 14, such as Figure 6 In this embodiment, the two sides of the air core sealing groove are respectively protruded from the air core to form a retaining ring structure. The specific structural arrangement is as shown in Figure 6 shown.

[0059] Example 7

[0060] This embodiment is based on the embodiment 6, and further optimizes and refines the air pump structure, specifically:

[0061] The detachable battery-type air pump compatible with multiple air nozzle interfaces described in this embodiment, its inflation module 1 also includes a shell 20, a brushless motor 21, a first gear 22, a second gear 23, an eccentric wheel 24 and a piston rod 25, an air outlet 3 is arranged at one end of the shell 20, and a compression chamber 26 connected to the air outlet 3 is arranged therein, the brushless motor 21 (a customized powerful motor is adopted) is fixed in the shell 20 and is electrically connected to the power module 2, and a first gear 22 (small gear) is arranged at the output end of the brushless motor 21, and the second gear 23 (large gear) is arranged to rotate. The piston rod 25 is in the housing 20 and meshes with the first gear 22. The first gear 22 drives the second gear 23 to perform a deceleration motion. An eccentric wheel 24 is fixedly arranged in the middle of the second gear 23. One end of the piston rod 25 is rotatably connected to the eccentric wheel 24 (specifically, a fixing column is arranged on the eccentric wheel 24, and a fixing hole is arranged at one end of the piston rod 25 and is sleeved on the fixing column to realize a rotatable connection). The other end extends into the compression chamber 26 and can perform a reciprocating motion in the compression chamber 26 driven by the second gear 23 to generate high-pressure (about 150PSI) inflatable gas.

[0062] The present invention fixes a set of reduction gears at the front end of the brushless motor 21, wherein the small gear is fixed on the brushless motor 21, and the large gear is connected to a piston rod 25 as a crankshaft, and the piston rod 25 moves back and forth in the inner cavity of the cylinder to achieve inflation, and a right-angle air nozzle is fixed at the rear end of the cylinder, the air nozzle on the upper side can be aligned with the French nozzle, and the air nozzle on the lower side can be aligned with the American nozzle, and the rear end of the air pump body is connected to the battery structure by magnetic attraction. The reduction gear can protect the motor and amplify the torque of the motor to achieve high air pressure. The air nozzle at the front end is compatible with the French nozzle and the American nozzle without carrying additional accessories or air pipes. The diameter of the overall product is only 30 mm, which is small and light enough. In addition, the detachable battery can expand the use scenario of the product.

[0063] When using the present invention, according to the type of air nozzle on the object to be inflated (American air nozzle or French air nozzle), the corresponding air nozzle connector on the air pump of the present invention is selected and screwed to the object. During the connection process, the other air nozzle connector is blocked by the air core sliding over, and then the air pump is started to inflate. If the battery life is insufficient during the inflation process, a new battery is replaced to continue inflation until inflation is completed and the air pump can be removed.

[0064] In addition, in the description of the invention, unless otherwise specified, the terms "multiple", "multiple roots", "multiple groups" are used to mean two or more than two, and "several", "several roots", "several groups" are used to mean one or more than one. In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", and "third" are used only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0065] The specific implementation modes of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above implementation modes, and various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of the present invention.

Claims

1. A detachable battery-powered air pump compatible with multiple air nozzle interfaces, characterized in that: It includes an inflation module and a power module, which are detachably connected, the power module is used to supply power to the inflation module, and the inflation module is used to inflate the object to be inflated; The inflation module includes an air outlet, on which a first air nozzle connector and a second air nozzle connector are provided, the first air nozzle connector and the second air nozzle connector are respectively used to inflate different air nozzles, an air core is provided between the first air nozzle connector and the second air nozzle connector, when one of the first air nozzle connector and the second air nozzle connector is used to inflate an object to be inflated, the air core pushes open the valve of the air nozzle on the object to be inflated, and at the same time, the air core blocks the other air nozzle connector.

2. The air pump according to claim 1, characterized in that: A connecting passage is provided between the first air nozzle joint and the second air nozzle joint, the connecting passage is connected with the air outlet, the air core is provided in the connecting passage, when one of the first air nozzle joint and the second air nozzle joint is used to inflate the article to be inflated, the air core pushes open the valve of the air nozzle on the article to be inflated, and at the same time, the air core slides along the connecting passage to seal the other air nozzle joint.

3. The air pump according to claim 2, characterized in that: A connecting pipe is provided between the first air nozzle joint and the second air nozzle joint, and the three are fixedly connected to form an inflation joint. The connecting passage passes through the inflation joint, and the inflation joint is rotatably provided at the air outlet.

4. The air pump according to claim 3, characterized in that: The air outlet is provided with a three-way joint, which is a T-shaped three-way joint, and its abdominal port is connected with the air outlet. The inflation joint is clamped on the three-way joint and can rotate, and the connecting channel is connected with the inner cavity of the three-way joint.

5. The air pump according to claim 4, characterized in that: The outer diameters of both ends of the inflatable joint are larger than the inner diameter of the inner cavity of the tee joint, the outer diameter of the middle part of the inflatable joint is smaller than the inner diameter of the inner cavity of the tee joint, the middle part of the inflatable joint is stuck in the tee joint, and its two ends respectively extend out of the two end ports of the tee joint and limit the inflatable joint to form a rotational connection, and at least one inflatable hole is provided in the middle part of the inflatable joint, and the inner cavity of the tee joint is connected with the connecting channel through the inflatable hole.

6. The air pump according to any one of claims 2 to 5, characterized in that: A first retaining ring and a second retaining ring are respectively provided at both ends of the air core, and a limiting ring is provided in the connecting channel between the first retaining ring and the second retaining ring to limit the air core. When the air core slides along the connecting channel until the first retaining ring abuts against the limiting ring, the air outlet is connected with the first air nozzle joint through the inflation hole. When the air core slides along the connecting channel until the second retaining ring abuts against the limiting ring, the air outlet is connected with the second air nozzle joint through the inflation hole.

7. The air pump according to claim 6, characterized in that: An air channel is provided in the air core, and the air channel runs through one end of the air core. An air port connected to the air channel is opened in the middle of the air core. The outer diameter of the air core at the position of the air port is smaller than the inner diameter of the connecting channel, and the outer diameters of the two ends of the air core are not smaller than the inner diameter of the connecting channel respectively. When the air core slides along the connecting channel until the first retaining ring abuts against the limiting ring, the air outlet is connected to the first air nozzle joint through the inflation hole and the connecting channel in sequence. When the air core slides along the connecting channel until the second retaining ring abuts against the limiting ring, the air outlet is connected to the second air nozzle joint through the inflation hole, the air port, the air channel and the connecting channel in sequence.

8. The air pump according to claim 7, characterized in that: The first gas valve joint end is provided with a first countersunk hole adapted to the Prefabricated nozzle, and the second gas valve joint end is provided with a second countersunk hole adapted to the American nozzle. The first countersunk hole and the second countersunk hole are respectively provided with internal threads matching the threads on the Prefabricated nozzle and the American nozzle.

9. The air pump according to claim 8, characterized in that: Joint sealing rings are respectively arranged outside the first gas nozzle joint and the second gas nozzle joint, gas nozzle sealing rings are respectively arranged inside the first gas nozzle joint and the second gas nozzle joint, and gas core sealing rings are respectively arranged at both ends of the gas core.

10. The air pump according to claim 9, characterized in that: The inflation module also includes a shell, a brushless motor, a first gear, a second gear, an eccentric wheel and a piston rod. An air outlet is arranged at one end of the shell, and a compression chamber connected to the air outlet is arranged therein. The brushless motor is fixed in the shell and electrically connected to the power module. A first gear is arranged at the output end of the brushless motor. The second gear is rotatably arranged in the shell and meshes with the first gear. An eccentric wheel is arranged in the middle of the second gear. One end of the piston rod is rotatably connected to the eccentric wheel, and the other end extends into the compression chamber and can make reciprocating motion in the compression chamber.

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