Inflatable air pump

Abstract

The utility model provides an inflatable air pump which is characterized in that a battery assembly, an air pump body and an air nozzle assembly are arranged in an inner cavity of a shell from top to bottom, the battery assembly is installed in the shell through a battery holder, and external airflow enters the shell through an air guide gap and an air guide hole in the battery holder. In the embodiment of the utility model, the shell is arranged into a structure formed by splicing the two half shells, so that the shell has the advantages of simple structure, convenience in carrying and rapidness in installation, and is suitable for being carried outdoors. The air pressure sensor is arranged in the air valve seat and can sense the air pressure in the air valve seat. When the air pressure exceeds the preset limit, the control panel can automatically send a signal for stopping inflation to the air pump body. The embodiment further provides a structure of the air tap connecting piece, the air tap connecting piece is matched with the equipment to be inflated in a rotating mode, the air pump can be fixed to the equipment to be inflated only by rotating the inflation air pump during inflation, and the air tap connecting piece has the advantage of being easy to operate.

Description

Technical Field

[0001] The utility model relates to an inflatable device, in particular to an inflatable air pump. Background Art

[0002] An inflatable air pump is a common device that uses the rotation of a motor to generate a pressure difference and fills the gas into the device to be inflated. With the development of the times, inflatable air pumps are widely used outdoors, helping people to quickly and conveniently inflate various inflatable items in outdoor environments. Correspondingly, the outdoor application environment places high demands on the portability and ease of assembly and disassembly of inflatable air pumps, and the prior art usually has the above two defects.

[0003] Therefore, it is necessary to improve the structure of the inflation air pump in the prior art. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides an inflatable air pump, comprising a housing, an air pump body composed of a diaphragm pump and a driving motor, a battery assembly for providing power to the air pump body, and an air nozzle assembly connected to an external device to be inflated, wherein the battery assembly, the air pump body, and the air nozzle assembly are sequentially arranged in the inner cavity of the housing from top to bottom;

[0005] A battery seat for accommodating the battery assembly is provided on the peripheral wall of the shell, one end of the battery seat away from the inner cavity is open and protrudes from the peripheral wall of the shell, and the other end extends toward the inner cavity of the shell; an air guide gap is provided between the peripheral wall of the battery seat and the battery assembly, and an air guide hole connecting the air guide gap and the inner cavity of the shell is provided on the peripheral wall of the battery seat;

[0006] The battery assembly includes a battery casing, a battery panel and a control panel arranged in the battery casing, and the control panel is electrically connected to a driving unit of the air pump body;

[0007] The air nozzle assembly is connected to the air outlet end of the air pump body, and the air nozzle assembly is provided with an air outlet connected to an external device to be inflated.

[0008] Furthermore, the battery case is provided with a plurality of groups of jacks, and the battery holder is provided with limited end holes at positions corresponding to each group of jacks, and the jacks are plugged and matched with the limited end holes.

[0009] Furthermore, the control panel has multiple sets of conductive electrodes extending into the corresponding sockets; the limiting end hole is provided with an electrical connector connected to the air pump body, and when the socket is plugged into the limiting end hole, the conductive electrode is electrically connected to the electrical connector.

[0010] Furthermore, a button is provided at one end of the battery assembly away from the inner cavity, and the button is connected to the control panel via a press switch.

[0011] Furthermore, a waterproof cover is clamped at one end of the battery assembly close to the opening of the battery seat, and the waterproof cover covers the outer end surface of the battery casing.

[0012] Furthermore, the air nozzle assembly includes an air valve seat and an air nozzle connector, one end of the air valve seat is sealably connected to the air pump body, and the internal air cavity of the air valve seat is connected to the air outlet end; the air nozzle connector is sealably connected to the end of the air valve seat away from the air pump body, and the air outlet is arranged at the center of the air nozzle connector and is connected to the internal air cavity of the air valve seat.

[0013] Furthermore, an air pressure sensor for sensing the air pressure inside the air valve seat is connected to the outer side of the air valve seat, and the air pressure sensor is electrically connected to the control panel.

[0014] Furthermore, the air nozzle connector includes a sealing cover, a connecting ring protruding from the surface of the sealing cover, and a connecting hook protruding from the surface of the connecting ring. The sealing cover is sealingly docked at the end of the air valve seat, and the air outlet is located at the center of the connecting ring.

[0015] Furthermore, the shell is composed of two radially divided half shells, and corresponding positions of the two half shells are provided with plug-fitting connecting columns.

[0016] Furthermore, the inner wall of the half shell is provided with a positioning ring on the outer side of the air pump body for positioning the outer wall of the air pump body.

[0017] The utility model provides an inflatable air pump, in which a battery assembly, an air pump body, and an air nozzle assembly are arranged from top to bottom in the inner cavity of a shell, wherein the battery assembly is installed in the shell through a battery seat, and external air flows into the shell through an air guide gap and an air guide hole on the battery seat. In the embodiment, the shell is set as a structure of two half shells spliced ​​together, so that the utility model has the advantages of simple structure, convenient carrying, and quick installation, and is suitable for outdoor carrying.

[0018] The gas valve seat of the utility model is provided with a gas pressure sensor, which can sense the gas pressure in the gas valve seat. When the gas pressure exceeds a preset limit, the control panel can automatically send a signal to the gas pump body to stop inflating.

[0019] The embodiment further provides a structure of an air nozzle connector, which can be rotated to fit with the device to be inflated. When inflating, the air pump can be fixed on the device to be inflated by simply rotating the air pump, which has the advantage of simple operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the appearance of an inflatable air pump of the utility model;

[0021] Figure 2 It is an explosion diagram of an inflatable air pump of the utility model;

[0022] Figure 3 It is a schematic diagram of the structure of the shell;

[0023] Figure 4 It is a schematic diagram of the structure of a battery assembly;

[0024] Figure 5 It is a structural schematic diagram of the air nozzle assembly;

[0025] Figure 6 Schematic diagram of the structure of the gas nozzle connecting piece in the embodiment.

[0026] Reference numerals: housing 1, battery holder 11, air guide gap 12, air guide hole 13, limit end hole 14, connecting column 15, threaded hole 16, positioning ring 17, annular boss 18, slot 19;

[0027] Air pump body 2;

[0028] Battery assembly 3, battery casing 31, battery board 32, control panel 33, conductive electrode sheet 34, jack 35, button 36, push switch 37, waterproof cover 38, pull ring 39;

[0029] The air nozzle assembly 4 , the air valve seat 41 , the air nozzle connector 42 , the air outlet 43 , the sealing cover 44 , the connecting ring 45 , the connecting hook 46 , the air pressure sensor 47 , the sealing ring 48 , and the clamping rib 49 . DETAILED DESCRIPTION

[0030] like Figure 1 and Figure 2 The inflatable air pump shown includes a housing 1, an air pump body 2 composed of a diaphragm pump and a driving motor, a battery assembly 3 providing power to the air pump body 2, and an air nozzle assembly 4 connected to an external device to be inflated. The housing 1 is a roughly cylindrical structure, and the battery assembly 3, the air pump body 2, and the air nozzle assembly 4 are arranged in the inner cavity of the housing 1 from top to bottom.

[0031] A battery holder 11 for accommodating the battery assembly 3 is provided on the peripheral wall of the shell 1. The battery holder 11 has an opening at one end away from the inner cavity and protrudes from the peripheral wall of the shell 1, and the other end extends toward the inner cavity of the shell 1, forming a space for accommodating the battery assembly 3. An air guide gap 12 is provided between the peripheral wall of the battery holder 11 and the battery assembly 3, and an air guide hole 13 connecting the air guide gap 12 and the inner cavity of the shell 1 is provided on the peripheral wall of the battery holder 11. The air guide gap 12 is the air flow inlet of the entire air pump. When the air pump is working, the external air flow is sucked into the battery holder 11 through the air guide gap 12, and then guided to the inner cavity of the shell 1 through the air guide hole 13.

[0032] like Figure 3As shown, the battery assembly 3 is a lithium power battery, including a battery casing 31, a battery board 32 and a control panel 33 arranged in the battery casing 31. The energy supply of lithium power batteries has been widely used in the prior art, and can realize the power supply of electrical equipment. The battery casing 31 makes the entire battery assembly 3 form an integrated structure, which is convenient for the entire battery assembly 3 to be taken out, charged and replaced in the battery holder 11.

[0033] The battery case 31 is provided with a plurality of groups of jacks 35, and the battery holder 11 is provided with a limiting terminal hole 14 corresponding to the position of each group of jacks 35. The jacks 35 are correspondingly plugged into and matched with the limiting terminal holes 14. When the battery assembly 3 is inserted into the outer opening of the battery holder 11, the limiting terminal holes 14 can quickly locate the position of each group of jacks 35, so that the jacks 35 are engaged with each limiting terminal hole 14 to fix the position of the battery case 31; in addition, the corresponding relationship between the limiting terminal holes 14 and the jacks 35 can prevent the battery assembly 3 from being installed incorrectly.

[0034] Furthermore, a plurality of conductive electrode sheets 34 are extended from the control panel 33 and extend into the corresponding sockets 35; the limiting end holes 14 are connected to the conductive parts electrically connected to the air pump body 2 through cables and terminals. When the socket 35 is plugged into the limiting end holes 14, the conductive electrode sheets 34 can quickly conduct electricity between the battery assembly 3 and the air pump body 2.

[0035] Furthermore, a button 36 is provided at one end of the battery assembly 3 away from the inner cavity, and the button 36 is connected to the control panel 33 via a push switch 37. The activation of the entire inflation pump is controlled by pressing the button 36.

[0036] Furthermore, a waterproof cover 38 is clamped at one end of the battery assembly 3 near the opening of the battery holder 11, and the waterproof cover 38 covers the outer end surface of the battery casing 31. The waterproof cover 38 can prevent external water vapor from flowing into the interior of the battery assembly 3 from the opening of the battery holder 11, thereby damaging the electrical components in the battery casing 31. A pull ring 39 is further provided on the waterproof cover 38, and the entire battery assembly 3 can be taken out of the battery holder 11 by pulling the pull ring 39.

[0037] After the external airflow flows into the inner cavity, it flows in through the air inlet end of the air pump body 2, and then flows out through the air outlet end of the air pump body 2. The air nozzle assembly 4 is connected to the air outlet end of the air pump body 2, and is used to connect with the device to be inflated. Figure 5 and Figure 6As shown, the air nozzle assembly 4 includes an air valve seat 41 and an air nozzle connector 42, one end of the air valve seat 41 is sealed and docked with the air pump body 2, the interior of the air valve seat 41 is connected with the air outlet end, so that the gas ejected from the air pump body 2 flows into the air valve seat 41, and an air cavity for accommodating gas is formed inside the air valve seat 41; the air nozzle connector 42 is sealed and docked with one end of the air valve seat 41 away from the air pump body 2, and an air outlet 43 communicating with the internal air cavity of the air valve seat 41 is provided at the center of the air nozzle connector 42.

[0038] The air nozzle connector 42 can be set as a common threaded air nozzle in the prior art, and a matching threaded fastening portion is set on one side of the component to be inflated to connect the air outlet 43 of the threaded air nozzle with the component to be inflated; it can also be set as a common plug-in air nozzle or connected to the component to be inflated through a ventilation pipe and other common air nozzle connection structures.

[0039] In this embodiment, a rotary snap-fit ​​gas nozzle connector 42 is provided, specifically, comprising a sealing cover 44, a connecting ring 45 protruding from the surface of the sealing cover 44, and a connecting hook 46 protruding from the surface of the connecting ring 45, wherein the sealing cover 44 is sealed and docked at the end of the gas valve seat 41, and the gas outlet 43 is located at the center of the connecting ring 45. The connecting hook 46 is provided with a matching connecting portion that is snapped with the gas nozzle connector 42 on one side of the part to be inflated, and the housing 1 is rotated so that the matching connecting portion is snapped into the gas nozzle connector 42, so that the entire inflatable air pump can be fixed at the part to be inflated.

[0040] Furthermore, an air pressure sensor 47 is connected to the outside of the air valve seat 41, which determines whether the inflated component is fully inflated based on the sensed air cavity pressure of the air valve seat 41, and automatically closes the air pump body 2 when the air pressure in the air valve seat 41 reaches the target threshold.

[0041] Furthermore, a sealing ring 48 is embedded on the end surface of the connecting ring 45 away from the air valve seat 41 to ensure air tightness when docking with the component to be inflated.

[0042] In order to facilitate the installation of the components in the housing 1, the housing 1 in this embodiment is composed of two radially divided half shells. The two half shells can be disassembled to conveniently install the air pump body 2 into the inner cavity. Connecting columns 15 for plug-in matching are provided at the corresponding positions of the two half shells. One group of connecting columns 15 is inserted into the other group of connecting columns 15, and the two half shells are assembled into an integral structure. The center of the connecting column 15 is provided with a threaded hole 16, and at least one group of threaded holes 16 extends out of the circumferential end face of the half shell. The threaded fasteners are installed from the end face of the half shell to fasten the position of the two half shells.

[0043] Furthermore, the inner wall of the half shell is provided with a positioning ring 17 on the outer side of the air pump body 2. The size of the positioning ring 17 is set according to the outer wall size of the diaphragm pump or the drive motor. After assembly, the air pump body 2 is clamped inside the positioning ring 17 to limit the radial movement of the air pump body 2. At the same time, due to the different radial dimensions of the air pump body 2, a step surface will be formed at the location where the dimension changes. Part of the positioning ring 17 is provided on the step surface, which limits the radial movement of the air pump body 2 while limiting its axial movement, thereby maintaining the stability of the air pump body 2 in the housing 1.

[0044] Similarly, this embodiment is also provided with a structure for limiting the position of the air nozzle connection member 42. Figure 3 and Figure 6 As shown, the shell 1 is provided with an annular boss 18 at a position corresponding to the circumferential end surface of the enclosed connecting ring 45; a clamping rib 49 is protrudingly provided on the surface of the connecting ring 45, and a clamping groove 19 for the clamping rib 49 to extend into is provided on the inner side of the annular boss 18, and the position of the air nozzle connector 42 is further restricted by the cooperation between the clamping rib 49 and the clamping groove 19.

[0045] The working process of this embodiment is as follows: the battery assembly 3 is loaded into the battery holder 11, the air nozzle connector 42 of this embodiment is connected to the component to be inflated, and the button 36 is pressed to start the air pump body 2. The external air flows through the air guide gap 12 and the air guide hole 13 of the battery holder 11 into the air inlet end of the air pump body 2, and then flows out from the air outlet end of the air pump body 2 through the air valve seat 41 and the air outlet 43 of the air nozzle connector 42 to the component to be inflated; the air pressure sensor 47 detects that the pressure in the air valve seat 41 reaches the target value, and sends a stop inflation signal to the control panel 33.

[0046] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. An inflatable air pump, comprising a housing (1), an air pump body (2) composed of a diaphragm pump and a driving motor, a battery assembly (3) for providing power to the air pump body (2), and an air nozzle assembly (4) for connecting an external device to be inflated, wherein the battery assembly (3), the air pump body (2), and the air nozzle assembly (4) are sequentially arranged in an inner cavity of the housing (1) from top to bottom; characterized in that: A battery seat (11) for accommodating a battery assembly (3) is provided on the peripheral wall of the shell (1); one end of the battery seat (11) away from the inner cavity is open and protrudes from the peripheral wall of the shell (1), and the other end extends toward the inner cavity of the shell (1); an air guide gap (12) is provided between the peripheral wall of the battery seat (11) and the battery assembly (3), and an air guide hole (13) is provided on the peripheral wall of the battery seat (11) for connecting the air guide gap (12) and the inner cavity of the shell (1); The battery assembly (3) comprises a battery casing (31), a battery panel (32) and a control panel (33) arranged in the battery casing (31), and the control panel (33) is electrically connected to a driving unit of the air pump body (2); The air nozzle assembly (4) is connected to the air outlet end of the air pump body (2), and the air nozzle assembly (4) is provided with an air outlet (43) connected to an external device to be inflated.

2. An inflatable air pump as claimed in claim 1, characterized in that: The battery casing (31) is provided with a plurality of groups of jacks (35), and the battery holder (11) is provided with a limit end hole (14) corresponding to the position of each group of jacks (35), and the jacks (35) are correspondingly plugged and matched with the limit end holes (14).

3. An inflatable air pump as claimed in claim 2, characterized in that: The control panel (33) is provided with a plurality of groups of conductive electrode sheets (34) extending into the corresponding insertion holes (35); the limiting end hole (14) is provided with an electrical connector connected to the air pump body (2); when the insertion hole (35) is plugged into the limiting end hole (14), the conductive electrode sheets (34) are electrically connected to the electrical connector.

4. An inflatable air pump as claimed in claim 1, characterized in that: A button (36) is provided at one end of the battery assembly (3) away from the inner cavity, and the button (36) is connected to the control panel (33) via a press switch (37).

5. An inflatable air pump as claimed in claim 1, characterized in that: A waterproof cover (38) is clamped at one end of the battery assembly (3) close to the opening of the battery seat (11), and the waterproof cover (38) covers the outer end surface of the battery casing (31).

6. An inflatable air pump as claimed in claim 1, characterized in that: The air nozzle assembly (4) comprises an air valve seat (41) and an air nozzle connector (42); one end of the air valve seat (41) is sealed and connected to the air pump body (2); the internal air cavity of the air valve seat (41) is connected to the air outlet end; the air nozzle connector (42) is sealed and connected to the end of the air valve seat (41) away from the air pump body (2); the air outlet (43) is arranged at the center of the air nozzle connector (42) and is connected to the internal air cavity of the air valve seat (41).

7. An inflatable air pump as claimed in claim 6, characterized in that: An air pressure sensor (47) for sensing the air pressure inside the air valve seat (41) is connected to the outer side of the air valve seat (41), and the air pressure sensor (47) is electrically connected to the control panel (33).

8. An inflatable air pump as claimed in claim 6, characterized in that: The air nozzle connecting piece (42) comprises a sealing cover (44), a connecting ring (45) protruding from the surface of the sealing cover (44), and a connecting hook (46) protruding from the surface of the connecting ring (45); the sealing cover (44) is sealingly connected to the end of the air valve seat (41), and the air outlet (43) is located at the center of the connecting ring (45).

9. An inflatable air pump as claimed in claim 1, characterized in that: The housing (1) is composed of two radially divided half shells, and corresponding positions of the two half shells are provided with plug-fitting connecting columns (15).

10. An inflatable air pump as claimed in claim 9, characterized in that: The inner wall of the half shell is provided with a positioning ring (17) on the outer side of the air pump body (2) for positioning the outer wall of the air pump body (2).

Images