Storage battery air pump

By using a snap-fit ​​design between the end cap and the housing and a concealed fastener design, combined with a sealing cover and a heat dissipation baffle, the problem of exposed fasteners affecting aesthetics and being prone to rusting is solved, thus improving aesthetics, rust prevention, and sealing performance.

CN224017366UActive Publication Date: 2026-03-20ZHEJIANG WEIBANG LEISURE ARTICLE
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-20
Publication Date
2026-03-20

AI Technical Summary

Technical Problem

The fasteners of the existing air pump are exposed, which affects the appearance, makes them prone to rust, and results in poor sealing performance.

Method used

The end cap and housing are connected by a snap-fit ​​mechanism and a hidden fastener design. Combined with a sealing cover and a heat dissipation plate, this design ensures reliable connection and waterproof and dustproof protection.

Benefits of technology

This design achieves both aesthetic appeal and rust resistance for the air pump, while also improving sealing performance and facilitating battery replacement.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224017366U_ABST
Patent Text Reader

Abstract

The utility model discloses a storage battery air pump, and aims to overcome the defects that an end cover and a shell of an air pump are fastened through screws, and the screws are exposed outside, so that the appearance is influenced, the air pump is easy to corrode and rust, and the sealing performance is influenced. The charger comprises a shell and an end cover, a concave charging port is arranged on the outer wall of the shell, an elastic buckle and a fixed seat are arranged on the end cover, the end cover tightly covers the end part of the shell, the elastic buckle on the end cover is clamped in the shell, and a fastener is connected between the bottom of the charging port and the fixed seat. According to the storage battery air pump, the end cover and the shell are reliably connected, and the fastener is designed in a hidden mode, so that the overall appearance is more attractive, and rusting is not prone to occurring.
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Description

TECHNICAL FIELD

[0001] The utility model relates to air pump technical field more specifically, it relates to a battery air pump. BACKGROUND

[0002] At present, there are many inflatable products on the market, and the inflatable products often need to use air pump to speed up the inflation speed. The air pump generally includes an end cover and a shell, the end cover is installed on the shell and fastened by screws, the screws are exposed outside, which not only affects the appearance, but also easily causes corrosion and rust, affecting the sealing performance. SUMMARY

[0003] In order to overcome the above-mentioned shortcomings, the utility model provides a battery air pump, the end cover and the shell are reliably connected, the fastener is designed in a hidden mode, so that the overall appearance is more beautiful and rust is not easy to occur.

[0004] In order to solve the above technical problems, the utility model adopts the following technical scheme: a battery air pump, comprising a shell and an end cover, a concave charging port is arranged on the outer wall of the shell, a snap buckle and a fixing seat are arranged on the end cover, the end cover is tightly covered on the end part of the shell, the snap buckle on the end cover is clamped in the shell, and a fastener is connected between the bottom of the charging port and the fixing seat.

[0005] The shell and the end cover of the air pump are clamped by the snap buckle and fastened by the fastener, so as to ensure the reliability of the connection between the shell and the end cover. The fastener is connected to the bottom of the concave charging port and designed in a hidden mode, so as to not affect the overall appearance of the air pump and not easily rust. The fixing seat on the end cover extends to the back of the charging port in the shell, the fastener extends from the bottom of the charging port and is connected with the fixing seat, so as to realize the fastening of the shell and the end cover.

[0006] The end cover and the shell of the battery air pump of the patent application are reliably connected, the fastener is designed in a hidden mode, so that the overall appearance is more beautiful and rust is not easy to occur.

[0007] As a preferred, a sealing cover capable of being opened and closed is installed at the position of the charging port.

[0008] The sealing cover covers the charging port, which plays a role in dustproof and waterproof. It prevents water flow from entering to cause short circuit and fastener rust. When the air pump needs to be charged, the sealing cover is opened, and after the charging is completed, the sealing cover is closed.

[0009] As a preferred, a flange is arranged on the edge of the end part of the shell, a groove is arranged on the edge of the end part of the end cover, the flange and the groove are matched and inserted, and a sealing ring is arranged between the flange and the groove.

[0010] When the end cover and the shell are connected, the flange and the groove are matched and inserted, which is convenient for accurate positioning. The sealing ring is arranged between the flange and the groove, so as to ensure the sealing performance of the connection between the end cover and the shell.

[0011] Preferably, a heat dissipation partition is arranged in the shell, the heat dissipation partition divides the shell into an element cavity and an air cavity, a motor is arranged on the heat dissipation partition, an impeller is arranged on an output shaft of the motor, and the impeller is arranged in the air cavity, and the motor is arranged in the element cavity.

[0012] The heat dissipation partition not only dissipates heat, but also separates the cavities, thereby meeting the waterproof requirement.

[0013] Preferably, a circuit board and a battery are arranged in the element cavity, a connecting lug is arranged in the shell, the circuit board is detachably connected with the connecting lug, and the battery is clamped between the heat dissipation partition and the circuit board.

[0014] The circuit board is detachably connected with the connecting lug, so that when the battery needs to be replaced, the battery can be taken out only by detaching the circuit board, and after the replacement of the new battery is completed, the circuit board is connected with the connecting lug, so that the replacement operation of the battery is convenient.

[0015] Preferably, a switch groove is arranged on a side wall of the shell, the switch groove is adapted to be connected with a light-transmitting switch sleeve, a switch plate is arranged in the shell, a switch button and a display lamp bead are arranged on the switch plate, and the switch button and the display lamp bead are correspondingly arranged with the light-transmitting switch sleeve.

[0016] The switch button is actuated by pressing the light-transmitting switch sleeve, so that the air pump is turned on or off. The display lamp bead can be displayed through the light-transmitting switch sleeve after emitting light, and different colors are displayed to show the remaining power, so that the user can control the power of the battery.

[0017] Preferably, an inner lining cover is connected with the shell, the inner lining cover and the end cover are arranged at two ends of the shell respectively, and a plurality of magnetic blocks are arranged on the inner lining cover.

[0018] The magnetic blocks are arranged to enable the air pump to be adsorbed to a metal, so that the air pump is fixed.

[0019] Preferably, a connecting cover is arranged on the inner lining cover, and a C-shaped lifting handle is rotatably connected with the connecting cover.

[0020] The connecting cover protects the inner lining cover. The lifting handle is convenient for the user to carry the air pump.

[0021] Preferably, an air inlet is arranged in the middle of the inner lining cover, and an air outlet is arranged on the side wall of the shell and close to the inner lining cover.

[0022] When the air pump works, air flows into the air inlet and is discharged from the air outlet.

[0023] Preferably, a clamping groove is arranged on the elastic buckle, a clamping convex is arranged on the inner wall of the shell, and the clamping groove is clamped and connected with the clamping convex.

[0024] After the end cover is connected with the shell, the clamping groove on the elastic buckle is clamped with the clamping convex on the inner wall of the shell, so that the connection is reliable.

[0025] Compared with the prior art, the beneficial effects of this utility model are: (1) The battery air pump end cover of this patent application is reliably connected to the housing, and the fastener is hidden, making the overall appearance more beautiful and less prone to rust; (2) The heat dissipation baffle is set inside the housing, which not only plays a role in heat dissipation, but also realizes the isolation of the chamber, meeting the requirements of waterproof and dustproof; (3) The circuit board is detachably connected to the connecting ear inside the housing, and the battery is sandwiched between the heat dissipation baffle and the circuit board, making the replacement operation convenient; (4) The remaining power of the battery is indicated by different colors of the light, making it easy for users to control the power of the battery. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of this utility model.

[0027] Figure 2 This is an exploded view of this utility model.

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

[0029] Figure 4 This is a schematic diagram of the end cap structure of this utility model.

[0030] In the diagram: 1. Housing, 2. End cap, 3. Charging port, 4. Spring clip, 5. Fixing base, 6. Fastener, 7. Flange, 8. Groove, 9. Sealing ring, 10. Boss, 11. Slot, 12. Snap protrusion, 13. Sealing cover, 14. Connecting strip, 15. Heat dissipation plate, 16. Component cavity, 17. Air cavity, 18. Motor, 19. Impeller, 20. Circuit board, 21. Battery, 22. Connecting ear, 23. Charging head, 24. Switch slot, 25. Light-transmitting switch sleeve, 26. Switch board, 27. Switch button, 28. Indicator LED, 29. Light-transmitting strip, 30. Inner liner cover, 31. Magnetic block, 32. Connecting cover, 33. Lifting handle, 34. Receiving groove, 35. Upper housing, 36. Lower housing. Detailed Implementation

[0031] The technical solution of this utility model will be further described in detail below through specific embodiments and with reference to the accompanying drawings:

[0032] Example 1: A battery air pump (see appendix) Figure 1 To be continued Figure 4), comprising a shell 1 and an end cover 2, the end cover 2 and the shell 1 are detachably connected, the shell 1 is provided with a concave charging port 3 on the outer wall, the end cover 2 is provided with a spring buckle 4 and a fixing seat 5, the spring buckle 4 and the fixing seat 5 are oppositely arranged, the fixing seat 5 is provided with two, the end cover 2 is tightly covered on the end of the shell 1, the spring buckle 4 on the end cover 2 is clamped in the shell 1, and the fastener 6 is connected between the bottom of the charging port 3 and the fixing seat 5. The fastener 6 adopts a limiting screw which is threadedly connected between the shell 1 and the end cover 2.

[0033] A flange 7 is arranged on the edge of the end of the shell 1, a groove 8 is arranged on the edge of the end of the end cover 2, the flange 7 is arranged on the outer edge of the end of the shell 1, the groove 8 is arranged on the outer edge of the end of the end cover 2, the flange 7 is fitted and assembled with the groove 8, and a sealing ring 9 is arranged between the flange 7 and the groove 8. The edge of the end cover 2 is protruded to form a flange 10, the groove 8 is arranged on the flange 10, so that the end face of the flange 10 is in a stepped structure. The fixing seat 5, the spring buckle 4 and the end cover 2 are in an integrated structure, the fixing seat 5 and the inner wall of the flange 10 are connected together, and the end of the fixing seat 5 and the end face of the end cover 2 are connected together. A clamping groove 11 is arranged on the spring buckle 4, a clamping protrusion 12 is arranged on the inner wall of the shell 1, and the clamping groove 11 and the clamping protrusion 12 are clamped and connected. An inclined guide surface is arranged on the outer side edge of the end of the spring buckle 4, the end of the spring buckle 4 is in an isosceles trapezoidal structure, an inclined pushing surface is arranged on the side of the clamping protrusion 12, and in the clamping process of the spring buckle 4 and the clamping protrusion 12, the guide surface slides through the pushing surface, so that the clamping protrusion 12 is clamped into the clamping groove 11. When the end cover 2 and the shell 1 are connected, the flange 7 is fitted and assembled with the groove 8, so as to facilitate accurate positioning. The sealing ring 9 is arranged between the flange 7 and the groove 8, so as to ensure the sealing performance of the connection between the end cover 2 and the shell 1.

[0034] A seal cover 13 which can be opened and closed is arranged at the position of the charging port 3, the seal cover 13 is made of flexible material and can seal the charging port 3. A through hole is arranged at the bottom of the charging port 3, the seal cover 13 is provided with a connecting strip 14, the connecting strip 14 passes through the through hole and is clamped at the inner end of the through hole. The seal cover 13 covers the charging port 3 and plays a dustproof and waterproof role. It prevents water flow from entering to cause short circuit and rust of the fastener 6. When the air pump needs to be charged, the seal cover 13 is opened, and after the charging is completed, the seal cover 13 is closed.

[0035] A heat dissipation partition plate 15 is arranged in the shell 1, the heat dissipation partition plate 15 divides the shell 1 into an element cavity 16 and an air cavity 17, a motor 18 is arranged on the heat dissipation partition plate 15, an impeller 19 is arranged on the output shaft of the motor 18, the impeller 19 is arranged in the air cavity 17, and the motor 18 is arranged in the element cavity 16. A circuit board 20 and a battery 21 are arranged in the element cavity 16, a connecting lug 22 is arranged in the shell 1, a connecting hole is arranged on the connecting lug 22, the circuit board 20 is detachably connected with the connecting lug 22 through screws, and the battery 21 is clamped between the heat dissipation partition plate 15 and the circuit board 20. A charging head 23 is arranged on the circuit board 20, the charging head 23 includes a USB charging head 23 and a Type-C charging head 23, and the USB charging head 23 and the Type-C charging head 23 are exposed to the bottom surface of the charging port 3.

[0036] A switch groove 24 is arranged on the side wall of the shell 1, the switch groove 24 is adapted to be connected with a light-transmitting switch sleeve 25, the light-transmitting switch sleeve 25 is sealingly connected with the switch groove 24, a switch plate 26 is arranged in the shell 1, a switch button 27 and a display lamp bead 28 are arranged on the switch plate 26, and the switch button 27 and the display lamp bead 28 are correspondingly arranged with the light-transmitting switch sleeve 25. A circle of light-transmitting strips 29 is arranged on the light-transmitting switch sleeve 25. The switch button 27 is actuated by pressing the light-transmitting switch sleeve 25 to realize the opening and closing of the air pump. The display lamp bead 28 can be displayed through the light-transmitting switch sleeve 25 after emitting light, different colors are displayed to show the remaining power, and the user can control the power of the battery 21.

[0037] An inner lining cover 30 is connected to the end of the shell 1, the inner lining cover 30 and the end cover 2 are arranged at two ends of the shell 1 respectively, a plurality of magnetic blocks 31 are arranged on the inner lining cover 30, and six magnetic blocks 31 are uniformly arranged in the circumferential direction. A connecting cover 32 is arranged on the inner lining cover 30, the connecting cover 32 is ultrasonically welded with the inner lining cover 30, and the inner lining cover 30 and the shell 1 are ultrasonically welded. A C-shaped lifting handle 33 is rotatably connected to the connecting cover 32. The connecting cover 32 is provided with a containing groove 34, and the lifting handle 33 is contained in the containing groove 34. An air inlet is arranged in the middle of the inner lining cover 30, an air outlet is arranged on the side wall of the shell 1, the air outlet is arranged close to the inner lining cover 30, and the air outlet is communicated with the air cavity 17. A through hole communicated with the air inlet is arranged in the middle of the connecting cover 32.

[0038] A sinking groove is arranged on the inner edge of the upper end of the shell 1, the lower end of the inner lining cover 30 is sealingly connected with the sinking groove, hinged shafts are arranged at both ends of the lifting handle 33, hinged holes are correspondingly arranged on the side wall of the containing groove 34 and the hinged shafts, and the hinged shafts are movably inserted and connected with the hinged holes, so that the lifting handle 33 can rotate around the hinged shafts.

[0039] The shell 1 includes an upper shell 35 and a lower shell 36, the length of the upper shell 35 is greater than that of the lower shell 36, and the upper shell 35 and the lower shell 36 are fastened by ultrasonic welding after being butted. The connecting surface of the upper shell 35 and the lower shell 36 is a stepped surface, the connection is accurate and reliable. The charging port 3 is arranged on the outer wall of the lower shell 36, and the connecting lug 22 is arranged on the inner wall of the lower shell 36. The switch groove 24 is arranged on the side wall of the upper shell 35, the heat dissipation partition plate 15 is installed in the upper shell 35 and close to the upper position, the air outlet is arranged on the side wall of the upper end of the upper shell 35, and the inner cover 30 is connected to the upper end of the upper shell 35. The end cover 2, the lower shell 36 and the circuit board 20 are assembled together, and then connected with the upper shell 35, so that the assembly operation of the whole air pump is facilitated.

[0040] The shell 1 and the end cover 2 of the air pump are connected through the elastic buckle 4 and the fastener 6, so that the reliability of the connection between the shell 1 and the end cover 2 is guaranteed. The fastener 6 is connected to the bottom of the inner recessed charging port 3, which is a hidden design and does not affect the overall appearance of the air pump, and is not easy to rust. The fixing seat 5 on the end cover 2 extends to the back of the charging port 3 in the shell 1, the fastener 6 extends from the bottom of the charging port 3 and is connected with the fixing seat 5, so as to realize the fastening of the shell 1 and the end cover 2.

[0041] The end cover 2 and the shell 1 of the battery air pump of the present application are reliably connected, the fastener 6 is a hidden design, the overall appearance is more beautiful, and it is not easy to rust. The heat dissipation partition plate 15 is arranged in the shell 1, which not only plays a role in heat dissipation, but also realizes the isolation of the cavity, meets the requirements of waterproof and dustproof. The circuit board 20 is detachably connected with the connecting lug 22 in the shell 1, the battery 21 is clamped between the heat dissipation partition plate 15 and the circuit board 20, and the replacement operation is convenient. The remaining electricity of the battery 21 is displayed by different colors of light, which is convenient for users to control the electricity of the battery 21.

[0042] Embodiment 2: A battery air pump includes a shell 1 and an end cover 2, the end cover 2 and the shell 1 are detachably connected, the inner recessed charging port 3 is arranged on the outer wall of the shell 1, the elastic buckle 4 and the fixing seat 5 are arranged on the end cover 2, the elastic buckle 4 and the fixing seat 5 are oppositely arranged, the fixing seat 5 is arranged in two, the end cover 2 is tightly covered on the end of the shell 1, the elastic buckle 4 on the end cover 2 is clamped in the shell 1, and the fastener 6 is connected between the bottom of the charging port 3 and the fixing seat 5. The fastener 6 is a limiting screw, which is threadedly connected between the shell 1 and the end cover 2.

[0043] A flange 7 is provided at the end edge of the housing 1, and a groove 8 is provided at the end edge of the end cap 2. The flange 7 is located at the outer edge of the end of the housing 1, and the groove 8 is located at the outer edge of the end of the end cap 2. The flange 7 and the groove 8 are fitted together and inserted into each other. A sealing ring 9 is installed between the flange 7 and the groove 8. A boss 10 is formed by a raised edge on the end cap 2. The groove 8 is provided on the boss 10, making the end face of the boss 10 have a stepped structure. The fixing seat 5, the spring buckle 4, and the end cap 2 are integrated into one structure. The fixing seat 5 is connected to the inner wall of the boss 10, and the end of the fixing seat 5 is connected to the end face of the end cap 2. A slot 11 is provided on the spring buckle 4, and a protrusion 12 is provided on the inner wall of the housing 1. The slot 11 and the protrusion 12 are engaged and connected. The outer edge of the snap-fit ​​4 has an inclined guide surface, and the end of the snap-fit ​​4 has an isosceles trapezoidal structure. The side of the latch 12 has an inclined pushing surface. During the engagement of the snap-fit ​​4 and the latch 12, the guide surface slides over the pushing surface, thus engaging the latch 12 into the latch groove 11. When the end cap 2 and the housing 1 are connected, the flange 7 and the groove 8 are fitted together for precise positioning. A sealing ring 9 is installed between the flange 7 and the groove 8 to ensure the sealing of the connection between the end cap 2 and the housing 1.

[0044] A flexible, openable and closable sealing cover 13 is installed at the charging port 3. The sealing cover 13 seals the charging port 3. A through hole is provided at the bottom of the charging port 3, and a connecting strip 14 is provided on the sealing cover 13. The connecting strip 14 passes through the through hole and is secured inside the through hole. The sealing cover 13 covers the charging port 3, providing dust and water protection. This prevents water from entering and causing short circuits and rusting of the fasteners 6. When the air pump needs charging, the sealing cover 13 is opened; after charging is complete, the sealing cover 13 is closed.

[0045] A heat dissipation baffle 15 is installed inside the housing 1, dividing the interior of the housing 1 into a component cavity 16 and an air cavity 17. A motor 18 is installed on the heat dissipation baffle 15, and an impeller 19 is installed on the output shaft of the motor 18. The impeller 19 is placed in the air cavity 17, and the motor 18 is placed in the component cavity 16. A circuit board 20 and a battery 21 are installed inside the component cavity 16. A connecting ear 22 is provided inside the housing 1, and a connecting hole is provided on the connecting ear 22. The circuit board 20 is detachably connected to the connecting ear 22 by screws. The battery 21 is sandwiched between the heat dissipation baffle 15 and the circuit board 20. A charging head 23 is installed on the circuit board 20. The charging head 23 includes a USB charging head 23 and a Type-C charging head 23, with the USB charging head 23 and the Type-C charging head 23 exposed on the bottom surface of the charging port 3.

[0046] A switch groove 24 is arranged on the side wall of the shell 1, and the switch groove 24 is adapted to be connected to a light-transmitting switch sleeve 25, which is in sealing connection with the switch groove 24. A switch plate 26 is arranged in the shell 1, and a switch button 27 and a display lamp bead 28 are mounted on the switch plate 26. The switch button 27 and the display lamp bead 28 are arranged in correspondence with the light-transmitting switch sleeve 25. A circle of light-transmitting strips 29 is arranged on the light-transmitting switch sleeve 25. The opening and closing of the air pump are realized by pressing the light-transmitting switch sleeve 25 to actuate the switch button 27. The light emitted by the display lamp bead 28 can be displayed through the light-transmitting switch sleeve 25. Different colors are displayed to show the remaining power, which is convenient for the user to control the power of the battery 21.

[0047] An inner lining cover 30 is connected to the end of the shell 1. The inner lining cover 30 and the end cover 2 are arranged at the two ends of the shell 1, respectively. A plurality of magnetic blocks 31 are mounted on the inner lining cover 30, and six magnetic blocks 31 are uniformly distributed in the circumferential direction. A connecting cover 32 is mounted on the inner lining cover 30. The connecting cover 32 is ultrasonically welded with the inner lining cover 30, and the inner lining cover 30 is ultrasonically welded with the shell 1. A C-shaped lifting handle 33 is rotatably connected to the connecting cover 32. The connecting cover 32 is provided with a containing groove 34, and the lifting handle 33 is contained in the containing groove 34. An air inlet is arranged in the middle of the inner lining cover 30. An air outlet is arranged on the side wall of the shell 1 and is close to the inner lining cover 30. The air outlet is in communication with the air cavity 17. A through hole in communication with the air inlet is arranged in the middle of the connecting cover 32.

[0048] A sunken groove is arranged on the inner edge of the upper end of the shell 1. The lower end of the inner lining cover 30 is in sealing connection with the sunken groove. Hinge shafts are arranged at both ends of the lifting handle 33. Hinge holes are arranged on the side wall of the containing groove 34 in correspondence with the hinge shafts. The hinge shafts are movably inserted and connected with the hinge holes, so that the lifting handle 33 can rotate around the hinge shafts.

[0049] The shell 1 is an integral structure, unlike the shell composed of an upper shell 35 and a lower shell 36 in the embodiment 1. In this embodiment, the shell 1 is integrally machined and formed. The charging port 3 is arranged on the lower outer wall of the shell 1, and the connecting lug 22 is arranged on the lower inner wall of the shell 1. The switch groove 24 is arranged on the upper side wall of the shell 1. The heat dissipation partition plate 15 is mounted in the shell 1 close to the upper position. The air outlet is arranged on the upper end side wall of the shell 1. The inner lining cover 30 is connected to the upper end of the shell 1.

[0050] The shell 1 and the end cover 2 of the air pump are clamped and fastened by the elastic buckle 4 and the fastener 6, which ensures the reliability of the connection between the shell 1 and the end cover 2. The fastener 6 is connected to the bottom of the inner recessed charging port 3, which is a hidden design and does not affect the overall aesthetics of the air pump, and is not easy to rust. The fixing seat 5 on the end cover 2 extends into the back of the charging port 3 in the shell 1. The fastener 6 extends from the bottom of the charging port 3 and is connected with the fixing seat 5 to realize the fastening of the shell 1 and the end cover 2.

[0051] The battery gas pump end cover 2 of the patent application is reliably connected with the shell 1, the fastener 6 is designed in a hidden mode, so that the overall appearance is more beautiful and is not prone to rust. The heat dissipation partition plate 15 is arranged in the shell 1, not only plays a heat dissipation role, but also realizes the isolation of the chamber, meets the waterproof and dustproof requirements. The circuit board 20 is detachably connected with the connecting lug 22 in the shell 1, the battery 21 is clamped between the heat dissipation partition plate 15 and the circuit board 20, and the replacement operation is convenient. The residual electricity of the battery 21 is connected through the light to display different colors to reflect, so that the user can control the electricity of the battery 21.

[0052] The above-described embodiments are only preferred schemes of the present application, and do not limit the present application in any form, and there are other variants and modifications without exceeding the technical schemes recorded in the claims.

Claims

1. A battery air pump, comprising a housing and an end cap, characterized in that, The outer wall of the housing has a recessed charging port, and the end cover has a spring buckle and a fixing seat. The end cover is tightly closed to the end of the housing, and the spring buckle on the end cover is engaged inside the housing. Fasteners connect the bottom of the charging port and the fixing seat.

2. The battery air pump according to claim 1, characterized in that, A sealing cover that can be opened and closed is installed at the charging port location.

3. A battery air pump according to claim 1, characterized in that, A flange is provided at the end edge of the housing, and a groove is provided at the end edge of the end cap. The flange and the groove are fitted together and inserted into each other. A sealing ring is installed between the flange and the groove.

4. A battery air pump according to claim 1, characterized in that, A heat dissipation baffle is installed inside the housing, which divides the interior of the housing into a component cavity and an air cavity. A motor is installed on the heat dissipation baffle, and an impeller is installed on the motor output shaft. The impeller is placed in the air cavity, and the motor is placed in the component cavity.

5. A battery air pump according to claim 4, characterized in that, The circuit board and battery are installed inside the component cavity. Connecting ears are provided inside the housing. The circuit board and connecting ears are detachably connected. The battery is sandwiched between the heat dissipation plate and the circuit board.

6. A battery air pump according to claim 1, characterized in that, A switch slot is provided on the side wall of the housing, and the switch slot is adapted to connect the light-transmitting switch sleeve. A switch plate is provided inside the housing, and a switch button and an indicator light are installed on the switch plate. The switch button and the indicator light are both set to correspond to the light-transmitting switch sleeve.

7. A battery air pump according to claim 1, characterized in that, The end of the housing is connected to an inner liner cover. The inner liner cover and the end cap are respectively placed at both ends of the housing. Several magnetic blocks are installed on the inner liner cover.

8. A battery air pump according to claim 7, characterized in that, A connecting cover is installed on the inner liner cover, and a C-shaped handle is rotatably connected to the connecting cover.

9. A battery air pump according to claim 7, characterized in that, An air inlet is provided in the middle of the inner liner, and an air outlet is provided on the side wall of the housing, with the air outlet located close to the inner liner.

10. A battery air pump according to any one of claims 1 to 9, characterized in that, The spring clip has a slot, and the inner wall of the housing has a protrusion. The slot and the protrusion are connected in a snap-fit ​​manner.