Inflation and deflation motor assembly, module, pressurizing air pump and balloon pump device

Abstract

The embodiment of the invention provides an inflation and deflation motor assembly, a module, a booster air pump and a balloon pump device, the inflation and deflation motor assembly comprises an air inlet and an air outlet which are formed in a shell, and an airflow cavity communicated between the air inlet and the air outlet; the at least two pump core motor components are limited in the airflow cavity and are used for driving airflow between the air inlet and the air outlet; each pump core motor component is provided with an air channel in a penetrating mode, and the air channels are communicated in series through air flow cavities so as to form an air flow channel between an air inlet and an air outlet. And the at least two pump core motor parts can be set to be started in different numbers, so that the air pressure in the airflow channel is adjusted. Therefore, the assembly can be started through different numbers of pump core motor parts to efficiently adjust the air pressure so as to improve the inflation efficiency of the air pump. Moreover, a plurality of pump core motor parts can be integrated in the air flow cavity of the pump shell or the motor shell in the air pump without matching of various accessories, and the air pump is simple in structure, low in cost and easy to assemble.

Description

Technical Field

[0001] The present disclosure relates to the technical field of air pumps, and in particular to an air charging and discharging motor assembly, a module, a booster air pump and a balloon pump device. Background Art

[0002] At present, inflatable appliances are very commonly used in people's daily lives. For example, balloons, inflatable beds, inflatable sofas, etc. Inflatable appliances are inflated by air pumps. Air pumps are divided into manual air pumps and electric air pumps. Electric air pumps save effort for users, are highly efficient, and provide a better experience.

[0003] Since the internal air pressure of the inflatable device will gradually increase during the inflation process, there is a need to adjust the inflation pressure of the electric air pump.

[0004] Taking the addition of an air pump as an example, a booster air pump can be used to inflate larger inflatable devices, such as SUP paddle boards. Existing air pumps include low-pressure pumps and high-pressure pumps, which achieve boosting by converting from low pressure to high pressure. When operating the booster, the user needs to set the air pressure value first, and then during the inflation process, the booster air pump will automatically convert between high and low pressure based on the set air pressure value. However, this solution has many shortcomings. In the actual high-low pressure conversion process, the air pressure cannot be increased quickly in a short period of time, the flow rate is insufficient, and the inflation efficiency is affected. Moreover, ordinary consumers do not understand the status of the inflatable product corresponding to the air pressure value, and will be confused about the setting of the air pressure value, which affects the user experience. In addition, the accessories of multiple low-pressure pumps and high-pressure pumps are different, resulting in more parts, complex assembly, and increased labor costs.

[0005] Take the balloon pump as an example, which is used to inflate balloons (such as magic balloons). Electric balloon pumps are divided into single-nozzle and double-nozzle types, which to a certain extent meet the needs of different groups of people. However, whether it is a single-nozzle balloon pump or a double-nozzle balloon pump, the internal drive device is basically completed by a motor, which can still cope with the inflation of small balloons; but for the inflation of large balloons, the inflation pressure is insufficient, resulting in poor inflation efficiency. Moreover, the internal structure of the balloon pump is complex, with many spare parts, difficult to assemble, and high cost.

[0006] It can be seen that the current air pumps are deficient in the inflation efficiency in the inflation pressure regulation link, and even if there are methods to improve it, there will still be problems with complex structures. Summary of the invention

[0007] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide an inflation and deflation motor assembly, a module, a booster air pump and a balloon pump device to solve the problems in the related art.

[0008] A first aspect of the present disclosure provides an air-charging and air-discharging motor assembly with adjustable air pressure, comprising: an air inlet, an air outlet, and an airflow cavity connected between the air inlet and the air outlet formed in a shell; at least two pump core motor components, which are clamped in the airflow cavity and are used to drive the airflow between the air inlet and the air outlet; wherein each of the pump core motor components is provided with an air passage, and each of the air passages is connected in series through the airflow cavity to form an airflow channel between the air inlet and the air outlet; wherein the at least two pump core motor components can be configured to be started in different quantities to adjust the air pressure in the airflow channel.

[0009] In an embodiment of the first aspect, the at least two pump core motor components are coaxially arranged; or, the central axes of the at least two pump core motor components are arranged flatly with each other intersecting; or, the central axes of the at least two pump core motor components are arranged side by side with each other parallel.

[0010] In an embodiment of the first aspect, each of the pump core motor components is electrically connected to an air pump switch; the air pump switch has a plurality of adjustable gears, which are respectively used to start a different number of pump core motor components to adjust the air pressure.

[0011] In an embodiment of the first aspect, the air duct in each of the pump core motor components is arranged along its central axis; and / or each of the pump core motor components is a low-voltage motor; and / or the opening area of ​​the air duct of each of the pump core motor components corresponding to the air inlet end is larger than the opening area corresponding to the air outlet end.

[0012] A second aspect of the present disclosure provides an air charging and discharging module, comprising: a motor housing; and a air charging and discharging motor assembly as described in any one of the first aspects, disposed in the motor housing.

[0013] A third aspect of the present disclosure provides a booster air pump device, comprising: the charging and discharging module as described in the second aspect; and a pump housing, which is arranged outside the motor housing.

[0014] In an embodiment of the third aspect, a limiting groove is formed on the inner wall of the airflow cavity corresponding to each of the pump core motor components, and each of the pump core motor components is provided with a flange on the side around its central axis, and the flange is placed in the limiting groove.

[0015] In an embodiment of the third aspect, the booster air pump device includes at least one of the following: 1) a power supply accommodating space is formed between the pump housing and the motor housing, and the power supply accommodating space accommodates the power cord of each pump core motor component; 2) the pump housing forms a hand-held portion, and the hand-held portion is provided with an air pump switch; 3) the pump housing is provided with at least one heat dissipation portion, and each of the heat dissipation portions includes at least one heat dissipation hole.

[0016] In an embodiment of the third aspect, the pump housing and the motor housing cooperate to form a first clamping portion at one end corresponding to the air outlet for clamping the inflation connector; and / or, the pump housing and the motor housing cooperate to form a second clamping portion at one end corresponding to the air inlet for clamping the air suction connector; the inflation connector or the air suction connector is connected to one end of the transfer tube, and the other end of the transfer tube is connected to the inflation device through an air nozzle of an adaptive type.

[0017] A fourth aspect of the present disclosure provides a balloon pump device, comprising: a pump housing, provided with an air pressure-adjustable inflation and deflation motor assembly as described in any one of the first aspects.

[0018] In an embodiment of the fourth aspect, the air flow chamber in the pump housing includes: a motor chamber and an inflation chamber that are adjacently spaced and connected; an air inlet connected to the inflation chamber is provided on the side of the pump housing; the at least two pump core motor components are horizontally arranged in the inflation chamber, and one of the pump core motor components is arranged corresponding to the air inlet; and at least one air outlet connected to the inflation chamber is provided on the top surface of the pump housing.

[0019] In an embodiment of the fourth aspect, each of the air outlets is provided with an inflation nozzle connected via a microswitch bracket; a limiting step portion is formed on the outer wall of the inflation nozzle near one end of the air outlet, and at least one sliding block is protruding from the outer side surface of the limiting step portion; a sliding groove for lifting and cooperating with the sliding block is provided at at least one preset position of the inner circumferential wall of the air outlet, and a limiting wall is formed by the upper end surface of the air outlet extending toward the center direction of the inflation nozzle to stop the limiting step portion; the microswitch bracket is provided with a microswitch, which is connected in series in the electrical circuit of the at least two pump core motor components, and is used to generate a start / stop signal for the pump core motor component in response to the touching or separation of the inflation nozzle.

[0020] In an embodiment of the fourth aspect, the balloon pump device includes at least one of the following: 1) a limiting groove composed of limiting ribs is formed on the inner wall of the airflow chamber corresponding to each of the pump core motor components, and each of the pump core motor components is provided with a flange on the side around its central axis, and the flange is placed in the limiting groove; 2) the pump housing also includes: a power supply accommodating chamber, which is adjacent to the motor chamber and the inflation chamber and is spaced apart to accommodate the power cord of each of the pump core motor components; 3) the pump housing forms a hand-held part, and the hand-held part is provided with at least one of the following: a balloon knotter; a detachable wire cutter; 4) the top surface of the pump housing exposes an air pump switch; 5) the top surface of the pump housing forms one or more holes for inserting a spare air nozzle.

[0021] As described above, the embodiments of the present disclosure provide an air-inflating and air-deflation motor assembly, a module, a booster air pump and a balloon pump device, wherein the air-inflating and air-deflation motor assembly comprises: an air inlet, an air outlet, and an airflow cavity connected between the air inlet and the air outlet formed in a shell; at least two pump core motor components are clamped in the airflow cavity to drive the airflow between the air inlet and the air outlet; wherein each of the pump core motor components is provided with an airway, and each of the airways is serially connected through the airflow cavity to form an airflow channel between the air inlet and the air outlet; wherein the at least two pump core motor components can be configured to be started in different numbers to adjust the air pressure in the airflow channel. Thus, the assembly can efficiently adjust the air pressure by starting different numbers of pump core motor components to improve the air pump inflation efficiency. Moreover, multiple pump core motor components can be integrated in the airflow cavity of the pump shell or motor shell in the air pump, without the need for numerous accessories, with a simple structure, low cost and easy assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic structural diagram of the booster air pump device in Example 1 of the present disclosure is shown.

[0023] Figure 2 exhibit Figure 1 Schematic diagram of the exploded structure of the medium boost air pump device.

[0024] Figure 3 exhibit Figure 1 Schematic diagram of the structure of the accessories of the medium-pressure air pump device.

[0025] Figure 4 exhibit Figure 1 A schematic diagram of the side structure of the medium-pressure air pump device.

[0026] Figure 5 exhibit Figure 4 Schematic diagram of the AA section view.

[0027] Figure 6 exhibit Figure 4 Schematic diagram of the cross-section in the longitudinal direction.

[0028] Figure 7 A schematic diagram of the structure of the balloon pump device in Example 2 of the present disclosure is shown.

[0029] Figure 8 exhibit Figure 7 Schematic diagram of the exploded structure of the balloon pump device.

[0030] Fig. 9 Show as Figure 8 A schematic structural diagram of a cross-section of a base with a third pump core motor component and a fourth pump core motor component.

[0031] Fig.10 exhibit Fig. 9 A schematic diagram of the structure of the base behind which the third pump core motor component and the fourth pump core motor component are hidden.

[0032] Fig.11 A schematic diagram showing the partial structure of the inflation nozzle being separated from the air outlet.

[0033] Fig.12 A schematic diagram showing the corresponding structure of the inflation nozzle and the micro switch bracket.

[0034] Figures 13A to 13C A schematic diagram showing the state of the circuit structure of the air pump device in one embodiment of the present disclosure under different air pump switch positions.

[0035] Fig.14 A schematic diagram showing a circuit structure of an air pump device including a micro switch in one embodiment of the present disclosure is shown.

[0036] Fig.15 A schematic diagram showing the circuit structure of an air pump device in another embodiment of the present disclosure is shown. DETAILED DESCRIPTION

[0037] The following is an explanation of the embodiments of the present disclosure by specific examples, and those skilled in the art can easily understand other advantages and effects of the present disclosure from the information disclosed by the present disclosure. The present disclosure can also be implemented or applied through other different specific embodiments, and the details in the present disclosure can also be modified or changed in various ways according to different viewpoints and application modules without departing from the spirit of the present disclosure. It should be noted that the embodiments in the present disclosure and the features in the embodiments can be combined with each other without conflict.

[0038] The following is a detailed description of the embodiments of the present disclosure with reference to the accompanying drawings so that those skilled in the art can easily implement the present disclosure. The present disclosure can be embodied in many different forms and is not limited to the embodiments described herein.

[0039] In the representations of the present disclosure, the reference terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" and the like mean that the specific features, structures, materials or characteristics represented in conjunction with the embodiment or example are included in at least one embodiment or example of the present disclosure. Moreover, the specific features, structures, materials or characteristics represented may be combined in any one or a group of embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples represented in the present disclosure and the features of different embodiments or examples, unless they are mutually contradictory.

[0040] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the representation of the present disclosure, "a group" means two or more, unless otherwise clearly and specifically defined.

[0041] In order to clearly describe the present disclosure, components not related to the description are omitted, and the same reference numerals are given to the same or similar components throughout the specification.

[0042] Throughout the specification, when a device is said to be "connected" to another device, this includes not only the case of "direct connection" but also the case of "indirect connection" by placing other elements therebetween. In addition, when a device is said to "include" a certain component, unless otherwise stated, it does not exclude other components, but means that other components may be included.

[0043] Although the terms first, second, etc. are used to represent various elements in this article in some examples, these elements should not be limited by these terms. These terms are only used to distinguish one element from another element. For example, the first interface and the second interface, etc. are represented. Moreover, as used in this article, the singular forms "one", "one" and "the" are intended to also include plural forms, unless there is an opposite indication in the context. It should be further understood that the terms "comprising" and "including" indicate that there are the described features, steps, operations, elements, modules, projects, kinds, and / or groups, but do not exclude the existence, occurrence or addition of one or a group of other features, steps, operations, elements, modules, projects, kinds, and / or groups. The terms "or" and "and / or" used herein are interpreted as inclusive, or mean any one or any combination. Therefore, "A, B or C" or "A, B and / or C" means "any of the following: A; B; C; A and B; A and C; B and C; A, B and C". Only when the combination of elements, functions, steps or operations is inherently mutually exclusive in some way, will there be an exception to this definition.

[0044] The technical terms used herein are only used to refer to specific embodiments and are not intended to limit the present disclosure. The singular form used herein also includes the plural form unless the sentence clearly indicates the contrary meaning. The meaning of "including" used in the specification is to specify specific characteristics, regions, integers, steps, operations, elements and / or components, and does not exclude the existence or addition of other characteristics, regions, integers, steps, operations, elements and / or components.

[0045] Although not defined differently, all terms, including technical and scientific terms used herein, have the same meaning as those generally understood by those skilled in the art to which the present disclosure belongs. Terms defined in commonly used dictionaries are additionally interpreted as having meanings consistent with relevant technical literature and the message of the present disclosure, and shall not be overly interpreted as ideal or very formal meanings unless defined.

[0046] As mentioned in the background, the current air pump device, regardless of its power, has the problem of slow adjustment / switching of the inflation pressure during the inflation process, resulting in insufficient inflation efficiency. In addition, the structure of the air pump device is relatively complex, especially in the process of pressurization to improve the inflation efficiency, which will lead to further complexity of the structure, difficulty in assembly, and high structural and labor costs.

[0047] For example, the booster air pump product uses the low- and high-pressure switching of two pump bodies to achieve boosting. This product has several shortcomings. On the one hand, in the actual high- and low-pressure switching process, the air pressure cannot be increased quickly, the flow rate is insufficient, and the inflation efficiency is insufficient. On the other hand, the switching between the low-pressure pump and the high-pressure pump requires the user to set the air pressure value in advance. The user does not have a clear quantitative concept of high- and low-pressure switching, and cannot understand how to set the air pressure value, resulting in a decrease in user experience. On the other hand, both the low-pressure pump and the high-pressure pump require independent components to cooperate, resulting in a complex structure and assembly of the booster air pump, which increases the structural and labor costs.

[0048] For another example, the electric balloon pump product is driven by a single motor with limited power. As the balloon grows, it inflates slowly, resulting in low inflation efficiency. Moreover, even if a single motor is used, it still uses a large number of accessories, resulting in a relatively complex structure. In other words, the inflation efficiency is not high, but the structural complexity is not low.

[0049] In view of this, an embodiment of the present disclosure provides an air-pressure adjustable inflation and deflation motor assembly, which includes at least two pump core motor components, which can be started individually or in combination to provide different air pressures to solve the above problems.

[0050] The following uses multiple implementations to demonstrate the application structure of the charging and discharging motor assembly in different air pump products.

[0051] Example 1

[0052] Example 1 is about the booster pump device. Please refer to Figure 1 and Figure 2 shown. Figure 1 A schematic structural diagram of the booster air pump device in Example 1 of the present disclosure is shown. Figure 2 exhibit Figure 1 Schematic diagram of the exploded structure of the medium boost air pump device.

[0053] exist Figure 1 In the embodiment, the booster air pump device 1 includes a pump housing 10. An inflating connector 11 and an inhalation connector 12 are respectively provided at both ends of the pump housing 10. The inflating connector 11 and the inhalation connector 12 are used for inflating and deflation operations. For example, in an inflating scene, the inflating connector 11 can be connected to an inflatable device for inflating. The inhalation connector 12 is connected to an air source, such as air. Figure 3 As shown, the inflation connector 11 can be connected to one end of the adapter tube 14, and the other end of the adapter tube 14 can be connected to various types of air nozzles 15 to adapt to the interfaces of different inflatable appliances. For example, in the deflation scenario, the suction connector 12 can be connected to the inflatable appliance for suction and discharged through the inflation connector 11. As an example, the adapter tube 14 can be a hose.

[0054] Exemplarily, in order to facilitate the user to hold the booster pump device 1, the pump housing 10 may form a hand-held portion 101. For example, the hand-held portion 101 is implemented as a handle formed on the upper portion of the pump housing 10 shown in the figure.

[0055] For example, the pump housing 10 may be formed by fixing and splicing two sub-housings. Figure 2 The first pump housing sub-shell 102 on the left and the second pump housing sub-shell 103 on the right shown in the figure are relatively fixedly spliced ​​to form the pump housing 10. Exemplarily, the motor housing 16 can also be formed by fixedly splicing sub-shells, such as the first motor sub-shell 161 on the left and the second motor sub-shell 162 on the right shown in the figure, which are fixedly spliced ​​to form an airflow cavity 163, and the airflow cavity 163 has an air inlet 164 connected to the air suction connector 12, and an air outlet 165 connected to the air charging connector 11.

[0056] You can refer to Figure 2 As shown, the pump housing 10 is arranged outside the motor housing 16, and the motor housing 16 has an air pressure adjustable inflation and deflation assembly, through which the air pressure adjustable inflation and deflation assembly drives the air flow to enter from the air suction joint 12 and to be sent out from the inflation joint 11. The air pressure adjustable inflation and deflation assembly can adjust the pressure of the outlet air. Figure 2 The structure of an air-inflating and air-deflating assembly with adjustable air pressure is introduced.

[0057] As an example, the motor housing 16 can be partially closed except for the air inlet 164 and the air outlet 165 to improve the efficiency of air flow transmission. At least two pump core motor components are limitedly arranged in the air flow chamber 163 to drive the air flow between the air inlet 164 and the air outlet 165. Each pump core motor component may include a motor and a fan blade driven by the motor output shaft, and the fan blade rotates to generate air flow. For example, Figure 2Two pump core motor components are shown, namely the first pump core motor component 17 and the second pump core motor component 18. Exemplarily, the first pump core motor component 17 and the second pump core motor component 18 can be the same, reducing the difficulty of implementing multiple combined uses. It can be understood that the air pressure adjustable inflation and deflation assembly can include an air inlet 164 and an air outlet 165 formed on the motor housing 16, an air flow cavity 163 connected between the air inlet 164 and the air outlet 165, a first pump core motor component 17 and a second pump core motor component 18.

[0058] Each pump core motor component is provided with air passages 170, 180, and each of the air passages is serially connected through the air flow cavity 163 to form an air flow channel between the air inlet 164 and the air outlet 165. Exemplarily, the air passages may be located at the central axis of the pump core motor component.

[0059] It can be understood that the first pump core motor component 17 and the second pump core motor component 18 can be configured to be started in different quantities, for example, the first pump core motor component 17 is started alone, and the first pump core motor component 17 and the second pump core motor component 18 are started together, or the first pump core motor component 17 and the second pump core motor component 18 are both turned off, etc., to adjust the air pressure in the airflow channel.

[0060] Exemplarily, each of the pump core motor components 17, 18 can adopt the same structure, and the motors used can also be, for example, low-pressure motors, and the effect of high air pressure can be achieved when the combination is started. In this way, it can help reduce the difficulty of selecting and using multiple pump core motor components in combination, and can also reduce the cost of the motor. Exemplarily, the air passages 170, 180 in each of the pump core motor components 17, 18 can be arranged along the direction of its central axis. Optionally, the pump core motor components 17, 18 can be coaxially arranged, that is, the central axes are on the same straight line, which simplifies the structure of the motor housing 16 on the one hand, and is also conducive to improving the inflation efficiency on the other hand.

[0061] Can also be combined Figure 2 , Figure 5 and Figure 6 , showing by way of example the relative positional relationship between the two pump core motor components 17 , 18 and the motor housing 16 . Figure 4 Display as Figure 1 Schematic diagram of the side structure. Figure 5 exhibit Figure 4 Schematic diagram of the AA section view. Figure 6 exhibit Figure 4 Schematic diagram of the cross-section in the longitudinal direction.

[0062] As can be seen from the figure, the motor housing 16 is wrapped around the first pump core motor component 17 and the second pump core motor component 18 to form an airflow cavity 163, and the opposite ends of the airflow cavity 163 are connected to the air outlet 165 and the air inlet 164 respectively. The first pump core motor component 17 and the second pump core motor component 18 are arranged along the extension direction of the airflow cavity 163, for example, coaxially arranged in a straight line as shown in the figure. The first pump core motor component 17 and the second pump core motor component 18 are limited to the position in the airflow cavity 163 by a limiting structure. As an example, the inner wall of the airflow cavity 163 forms a limiting groove 168 corresponding to each of the pump core motor components, and each of the pump core motor components 17 and 18 is provided with a first flange 171 and 181 on the side around the central axis thereof, and the first flange 171 and 181 are placed in the limiting groove 168. As an example, the limiting groove 168 can be an annular groove, and the first flange 171 and 181 are annular to match the annular groove. For example, each of the pump core motor components 17, 18 may be provided with a disc-shaped seat body 172, 182, and the first flanges 171, 181 may be the periphery of the disc-shaped seat bodies 172, 182. Alternatively, in other embodiments, the first flanges 171, 181 may also be an annular flange protruding from the periphery of the pump core motor component, or an arc-shaped flange segmented along an annular interval, etc. For example, since the motor housing 16 may be divided into a first motor sub-housing 161 and a second motor sub-housing 162, the two segments of the limiting groove 168 may be separately provided in the two sub-housings, so the two segments of the limiting groove 168 may be semicircular or arc-shaped.

[0063] Figure 5 and Figure 6 The figure also shows the airflow channel formed in the airflow chamber 163. The airflow path in the airflow channel is indicated by arrow B in the figure. When at least one of the first pump core motor component 17 and the second pump core motor component 18 is started, air is sucked into the right air inlet 164 to form an airflow, passes through the airway 180 in the second pump core motor component 18, and is connected to the airway of the first pump core motor component 17 through the partial space between the second pump core motor component 18 and the first pump core motor component 17 in the airflow chamber 163, and then passes through the airway of the first pump core motor component 17 to reach the air outlet 165 for exhaust. In order to further improve the air delivery efficiency of the airway in each pump core motor component, as an example, the opening area of ​​the airway of each pump core motor component corresponding to the air inlet 164 is larger than the opening area corresponding to the air outlet 165.

[0064] Exemplarily, the pump body 10 and the motor housing 16 cooperate to form a first clamping portion at one end corresponding to the air outlet 165 for clamping the inflation connector 11. As an example, the first clamping portion can be a clamping interface on the pump body 10 and the motor housing 16 that clamps the two ends of the inflation connector 11 respectively. Figure 5 The example in the figure shows the motor housing clamping interface 166 that clamps the motor housing 16 to one end of the inflation connector 11 . Figure 6 The motor housing clamping interface 167 for clamping the motor housing 16 with one end of the air intake connector 12 and the pump housing clamping interface 105 for clamping the pump housing 10 with one end of the air intake connector are exemplarily shown. The pump body 10 and the motor housing 16 can also form a second clamping portion at one end corresponding to the air inlet 164 for clamping the air intake connector 12. As an example, the second clamping portion can be a clamping interface on the pump body 10 and the motor housing 16 that clamps the two ends of the air intake connector 12 respectively. Compared with the related art, the clamping assembly method reduces the types and quantity of spare parts, and the assembly is easier and more accurate.

[0065] For example, the end surface of the air inlet 164 can be slightly lower than the end surface of the air inlet connector 12, and can be provided with mesh holes. For example, the air inlet 164 can be provided on the side of the air inlet connector 12 away from the end surface, and when high-pressure air is inhaled, on the one hand, the air inlet flow rate can be increased, and on the other hand, the mesh holes can play a filtering role.

[0066] For example, Figure 1 , Figure 2 and Figure 5 As shown, the pump housing 10 and the space between it and the motor housing 16 may also be designed with some detailed functions. As an example, the pump housing 10 is provided with at least one heat dissipation portion 104, each of which includes at least one heat dissipation hole, preferably a plurality of heat dissipation holes. As an example, a power supply accommodation space may be formed between the pump housing 10 and the motor housing 16 on the pump housing 10, and the power supply accommodation space accommodates the power cord 19 of each pump core motor component.

[0067] It should be noted that the configuration of the inflation connector 11 and the suction connector 12 may vary according to actual needs. For example, the suction connector 12 may be varied according to different gas sources, or the suction connector 12 may not be provided, and the present invention is not limited to the embodiments.

[0068] Each of the pump core motor components can be electrically connected to an air pump switch 13 and controlled by the air pump switch 13. The air pump switch 13 has a plurality of adjustable gears, which are respectively used to start different numbers of pump core motor components to adjust the air pressure. Figure 1 and Figure 2 In the air pump adding device shown, the air pump switch 13 can be arranged on the handheld portion 101 of the pump housing 10 to facilitate the control by the user's fingers. Alternatively, the air pump switch 13 can also be arranged at other parts of the pump housing 10.

[0069] Exemplarily, the air pump switch 13 may have, for example, three gears, gear 1, gear 2, and off gear. In this embodiment, the air pump switch 13 may be selected as a push-type ship-type switch to achieve different depth gear control, or in other embodiments, a ship-type switch or a toggle switch may also be selected. Taking the inflation scene as an example, when gear 1 is pressed, a pump core motor component (such as the first pump core motor component 17 near the air outlet 165) starts to work, and the airflow enters the motor housing 16 from the suction connector 12, and enters the inflation body through the transfer tube 14 connected to the inflation connector 11; when gear 2 is pressed, the first pump core motor component 17 and the second pump core motor component 18 work together to increase the driving pressure so that the airflow enters the motor housing 16 efficiently and quickly, and enters the inflatable device through the transfer tube 14 connected to the inflation connector 11. In the dual motor working state in the same airflow chamber 163, the inflation time is short and the efficiency is high. When the off gear is pressed, the motor stops working. Or in the deflation scenario, if the air inside the inflatable device needs to be discharged, the adapter tube 14 is connected to one end of the air suction connector 12, and the gear 1 or gear 2 is pressed to adjust the air pressure to drive the airflow inside the inflatable device to be sucked into the airflow cavity 163 through the adapter tube 14, and then discharged through the end of the inflatable connector 11. For example, since the airflow cavity 163 of the motor housing 16 can be designed as a closed housing, the airflow can be effectively gathered together and discharged to an outlet 165, reducing losses, so as to achieve fast and efficient air intake and exhaust.

[0070] In some embodiments, the motor housing 16, at least two motor components and the air pump switch 13 can be combined into an air charging and discharging module, which can be applied to various air pump devices to improve the charging efficiency; it is not limited to the illustrated embodiments.

[0071] Example 2

[0072] Embodiment 2 is about a balloon pump device. The balloon pump device includes an inflation and deflation motor assembly, which includes at least two pump core motors in an air flow cavity having an air inlet and an air outlet. The at least two pump core motor components can be configured to be started in different quantities to adjust the inflation and deflation pressure and improve the inflation and deflation efficiency.

[0073] See also Figure 7 and Figure 8 . Figure 7 A schematic diagram of the structure of the balloon pump device 2 in Embodiment 2 of the present disclosure is shown. Figure 8 exhibit Figure 7 Schematic diagram of the exploded structure of the balloon pump device 2.

[0074] The balloon pump device 2 includes a pump housing 20. The pump housing 20 is exemplarily formed by splicing an upper cover 201 and a base 202, and a receiving space is formed between the upper cover 201 and the base 202. The airflow cavity is formed in the receiving space. Exemplarily, the pump housing 20 is formed with an air inlet 203 on the side, and can refer to Figure 8 , the pump housing 20 forms an air outlet 204 on the top surface. Figure 8 It is shown in the figure that there can be multiple air outlets 204, such as the two air outlets 204 shown in the figure. Figure 7 It is shown that each air outlet (blocked) is connected to an air inflator 21. Figure 8 FIG. 2 shows a structure in which the inflation nozzle 21 is separated from the gas outlet 204 .

[0075] Exemplarily, the air inlet 203 may be composed of a plurality of hollows or holes, and the plurality of hollows or holes may be distributed at corresponding upper and lower positions of the upper cover 201 and the base 202 .

[0076] For example, the top surface of the upper cover 201 may further form a hand-held portion 22, and the hand-held portion 22 may be a handle. Figure 8 As shown, the hand-held portion 22 can be fixedly connected to the handle groove 205 on the top surface of the upper cover 201, for example, it can be fixedly connected by a screw lock. Exemplarily, the hand-held portion 22 can be provided with a balloon knotter 23, the shape of which is adapted to the hand-held portion 22, i.e., the handle, and can be rotated for the convenience of consumers to use, so as to assist users in winding and knotting balloons. The balloon knotter 23 can be provided with an axis portion, so as to be rotatably and pivotally coupled to the axis hole on the surface of the hand-held portion 22.

[0077] Exemplarily, the balloon pump device 2 may also be provided with a detachable wire cutter (not shown) for facilitating the user to cut the balloon wire.

[0078] Exemplarily, the top surface of the pump housing 20 forms one or more holes for inserting the spare air nozzle 206 so as to be adapted to inflatable devices with different interfaces.

[0079] Exemplarily, the balloon pump device 2 is provided with an air pump switch 24, and the air pump switch 24 can be electrically connected to each pump core motor component. Figure 8In the figure, two pump core motor components are shown. For the convenience of description, the one close to the air outlet 203 is defined as the third pump core motor component 25, and the one far away from the air inlet 203 is defined as the fourth pump core motor component 26. As an example, the structures of the third pump core motor component 25 and the fourth pump core motor component 26 can be similar to the structural principles of the first pump core motor component 17 and the second pump core motor component 18, such as both having a through air passage, which can be arranged axially and provided with a flange for fixing. As an example, the opening area of ​​the air passage of each pump core motor component 25, 26 corresponding to the air inlet 203 is larger than the opening area of ​​the end away from the air inlet 203, thereby improving the air delivery efficiency.

[0080] One end of the third pump core motor component 25 is arranged corresponding to the air inlet 203 arranged on the side of the pump housing 20. For example, the balloon pump device 2 can be arranged on the pump housing 20, and the top surface of the pump housing 20 can expose the air pump switch 24. Figure 8 In the embodiment, a through mounting hole is formed on the top surface of the upper cover 201 of the pump housing 20, and the air pump switch 24 is adaptively arranged in the mounting hole.

[0081] Exemplarily, the air pump switch 24 may also have three gears, namely gear 1, gear 2, and off gear. In this embodiment, the air pump switch 24 may be selected as a boat-type switch, and in actual application, it may also be a push-type switch to achieve different depth gear control or a toggle switch. The air pump switch 24 is connected to the circuit board of the third pump core motor component 25 and the fourth pump core motor component 26 to control the start / stop of a single or two pump core motor components.

[0082] You can also refer to Fig. 9 and Fig.10 , showing the structure of the internal chamber of the pump housing 20. Fig. 9 Show as Figure 8 A schematic structural diagram of a cross-section of the base 202 with the third pump core motor component 25 and the fourth pump core motor component 26. Fig.10 exhibit Fig. 9 FIG. 2 is a schematic diagram of the structure of the base 202 after the third pump core motor component 25 and the fourth pump core motor component 26 are hidden.

[0083] like Fig. 9 and Fig.10As shown, the internal space of the pump housing 20 may include a motor chamber 207 and an air-filling chamber 208 that are adjacently arranged and connected, and the third pump core motor component 25 and the fourth pump core motor component 26 are sequentially arranged in the motor chamber 207 from the air inlet 203 to the air-filling chamber. Exemplarily, the third pump core motor component 25 and the fourth pump core motor component 26 are horizontally arranged in the air-filling chamber 208, and their central axes may intersect, rather than being coaxially arranged along a straight line as in Example 1. Exemplarily, the angle between the central axes of the third pump core motor component 25 and the fourth pump core motor component 26 may be an acute angle, a right angle or an obtuse angle, for example, a right angle of 90° is selected in the figure. Of course, it can be understood that as long as the airflow cavity space between the two ends of the airways of the multiple pump core motor components is relatively closed, that is, other parts are closed or relatively narrow, the airflow resistance is much greater than the airflow resistance between the airways of the pump core motor components. Thus, the airflow can be smoothly guided to flow along each airway in sequence, and the airways of the pump core motor components are not limited to being coaxial or having a certain angle between the central axis. For example, in some embodiments, the layout of the third pump core motor component and the fourth pump core motor component can also be arranged side by side in parallel with the central axis direction, that is, the fourth pump core motor component can be rotated 90° to the right.

[0084] The layout of the third pump core motor component 25 and the fourth pump core motor component 26 allows the motor chamber 207 to bend without being too long in one direction, making the overall structural layout of the balloon pump device 2 more compact and more portable.

[0085] Comparable Fig. 9 and Figure 8 The inflation chamber 208 is connected to each air outlet 204 provided on the upper cover 201, and is thus connected to the inflation nozzle 21. Similar to Example 1, the third pump core motor component 25 and the fourth pump core motor component 26 each have an air passage that passes through the space of the motor chamber 207, and is connected to the inflation chamber 208 to communicate with each air outlet 204 to form an air flow channel. Figure 8 The airflow path C in the figure shows the airflow path of the airflow channel. The air-filled chamber 208 is connected to the position after the motor chamber 207 is bent, and the air-filled chamber 208 extends in a straight line and the extension direction is parallel to the first section of the motor chamber 207 before the bend, and also detours to the opposite side of the first section of the motor chamber 207 before the bend, and is separated by the corresponding ribs connected to the position of the base 202 and the upper cover 201, making the entire structural layout more compact.

[0086] Exemplarily, the internal space of the pump housing 20 also includes a power supply accommodating chamber 209. The power supply accommodating chamber 209 is arranged adjacent to the motor chamber 207 and the air-filled chamber 208, and is used to accommodate the power cords of the pump core motor components. Exemplarily, the air-filled chamber 208 also extends and protrudes from the motor chamber 207 to form a concave space with the air-filled chamber 208. The power supply accommodating chamber 209 can be arranged in the concave space in a matching manner, so that the internal space of the rectangular pump housing 20 is efficiently utilized, the structure is compact, and it is convenient for users to carry.

[0087] For example Fig. 9 and Fig.10 As shown, the inner wall of the airflow cavity (i.e., the inner wall of the upper cover 201 and the base 202) forms a limiting groove 210 corresponding to each of the pump core motor components 25 and 26, and each of the pump core motor components 25 and 26 is provided with a flange 251 and 261 on the side around its central axis, and the flange is placed in the limiting groove 210. The limiting groove 210 can be an annular groove formed between each pair of convex ribs spaced apart on the inner wall of the pump housing 20. The two parts of the convex ribs are respectively arranged on the upper cover 201 and the base 202, and the limiting groove 210 is formed when the upper cover 201 and the base 202 are covered. The flanges on the third pump core motor component 25 and the fourth pump core motor component 26 can be annular and placed in the limiting groove 210 to limit the axial position of the components. Exemplarily, the flanges in the limiting groove 210 can have a certain gap between the relative surfaces on the ribs forming the limiting groove 210 to reduce mutual friction.

[0088] like Figure 8 As shown in FIG. 2 , the structure in which the two inflatable nozzles 21 are installed at the air outlet 204 is exemplarily introduced. Specifically, the inflatable nozzle 21 can be positioned and connected to the air outlet 204 through a micro-motion bracket. Fig.11 and Fig.12 As shown, Fig.11 A partial structural schematic diagram showing the air inflator nozzle 21 separated from the air outlet 204 is shown. Fig.12 A schematic diagram showing the corresponding structures of the inflation nozzle 21 and the micro switch bracket 27.

[0089] like Fig.11 As shown, the outer wall of the inflation nozzle 21 near the outlet 204 forms a limiting step 211, which is formed by the enlarged diameter of the outer side of the inflation nozzle 21. At least one sliding block 212 is protruded from the outer side of the limiting step 211. Fig.11There are two sliding blocks 212 as shown in the figure. A sliding groove 241 for lifting and matching the sliding block 212 is provided at at least one preset position of the inner wall of the air outlet 204. There may also be two sliding grooves 241, each of which corresponds to a sliding block 212. The upper end of the air outlet 204 extends toward the center of the air nozzle 21 to form a limiting wall 242 that blocks the upper surface of the limiting step 211 to limit the range of motion of the air nozzle 21. Fig.12 As shown, a micro switch 271 is provided on the side of the micro switch bracket 27 that faces the inflation nozzle 21 and is connected in series in the electrical circuit of the at least two pump core motor components 25 and 26 to generate a start / stop signal for the pump core motor components 25 and 26 in response to the touching or separation of the inflation nozzle 21.

[0090] In one scenario example, when the user presses the inflation nozzle 21, so that the inflation nozzle 21 touches the micro switch 271, the switch state of the micro switch 271 changes (such as closing) to conduct the electrical path of at least one pump core motor component (25, or 25 and 26), so as to start working at least one pump core motor component (26, or 25 and 26), such as starting the fourth pump core motor component 26. The number of pump core motor components started can correspond to the gear position set by the air pump switch 24, such as when the gear position is 1, the micro switch 271 triggers the fourth pump core motor component 26 to start, and when the gear position is 2, the micro switch 271 triggers the third pump core motor component 25 and the fourth pump core motor component 26 to start, etc. When the inflation nozzle 21 moves upward away from the micro switch 271, each pump core motor component stops working.

[0091] In Example 2, the functions of single motor component working and dual motor component working at the same time are realized, which not only meets the consumer's demand for inflating small balloons (single motor working), but also meets the consumer's demand for inflating large balloons (dual motor working and boosting). In terms of maintenance, since the two motor mechanisms are independent and complete mechanisms, if one of them is damaged, it does not affect the use of the other, thus extending the service life of the product. In addition, low-voltage motors can be selected for the two motor components, and various performances are stable during startup and easy to control. When a single motor is working, the flow rate can meet general requirements; when dual motors are working, the effects of low pressure, large flow, and dual motor boosting are achieved to meet the demand for large flow.

[0092] With respect to the air pump device in Embodiment 1 and Embodiment 2, the corresponding connection structure is provided as an example below.

[0093] like Figures 13A to 13CAs shown, a schematic diagram showing the state of the circuit structure of the air pump device in the embodiment of the present disclosure under different air pump switch gears is shown. The "air pump device" can be used to implement the additional air pump device in Example 1 and the balloon pump device in Example 2; the pump core motor component 1 and the pump core motor component 2 correspond to the first pump core motor component and the second pump core motor component in the booster air pump device, and can also correspond to the fourth pump core motor component and the third pump core motor component in the balloon pump device.

[0094] The figure shows by way of example that the power line may include two wires, corresponding to the live wire and the neutral wire respectively. The live wire is connected to a power input terminal of the air pump switch. The air pump switch may include a first switch element and a second switch element. The power input terminal is respectively connected to one end of the first switch element and the second switch element, and the other end of the first switch element and the second switch element is respectively connected to one end of the pump core motor component 1 and the pump core motor component 2 via an output terminal of the air pump switch, and the other ends of the two pump core motor components are connected to each other and connected to the neutral wire.

[0095] When the air pump switch is in the "off position", Fig.13A As shown, the first switch element and the second switch element are both disconnected, and the pump core motor component 1 and the pump core motor component 2 are not started.

[0096] When the air pump switch is in "position 1", that is, Fig. 13B As shown, when the first switch element is closed and the second switch element is open, pump core motor component 1 is started and pump core motor component 2 is not started.

[0097] When the air pump switch is in "gear position 2", that is, Fig. 13C As shown, the first switch element and the second switch element are both closed, and the pump core motor component 1 and the pump core motor component 2 are both started.

[0098] That is FIG. 13A to FIG. 13C The pump core motor component 1 and the pump core motor component 2 are connected in parallel, and the three states of their branch on and off are controlled by the three gears of the air pump switch to achieve the required air pressure control.

[0099] In one example, corresponding to Example 2, the start and stop of the air pump device can be controlled by a micro switch, such as Fig.14 As shown, in Fig.13A Based on the example, the purpose can be achieved by connecting the micro switch in series in the main circuit of the pump core motor component 1 and the pump core motor component 2. Fig.14 In the display, the corresponding Figure 7 The two micro switches k1 and k2 are connected in parallel with each other and then connected in series in the main circuit. Closing any one of k1 and k2 can turn on the main circuit.

[0100] It should be noted that FIG. 13A to FIG. 13C and Fig.14 The circuit connection structure is only an implementation example. The three-speed control result described in the embodiment can also be achieved by using different air pump switch types and different connection methods.

[0101] For example, if Fig.15 As shown in FIG. 1 , the circuit structure of the air pump device in another embodiment is shown. Fig.15 In the figure, the air pump switch includes moving contact 0, static contacts 1 and 2, static contact 0 is connected to the neutral wire, the live wire is connected to one end of the pump core motor component 1, the other end of the pump core motor component 1 is connected to the static contact 1 and one end of the pump line motor component 2, and the other end of the pump core motor component 2 is connected to the static contact 2.

[0102] When the gear is in the "off position", the moving contact 0 and the static contacts 1 and 2 are disconnected, and the pump core motor components 1 and 2 do not start.

[0103] When in "gear position 1", the moving contact 0 is connected to the static contact 1, and the pump core motor component 1 starts.

[0104] When in "gear position 2", the moving contact 0 is connected to the static contact 2, and the pump core motor component 1 and the pump core motor component 2 are started.

[0105] That is, the pump core motor component 1 is connected to the main circuit, and can be directly connected to the neutral line through the conduction of contacts 0 and 1 to form a loop. The pump core motor component 2 is equivalent to being connected in series with the pump core motor component 1, and is connected to the neutral line when contacts 0 and 2 are conducted to form a loop. For example, corresponding to the requirements of the micro switches in Example 2, the micro switches k1 and k2 can be connected to the main circuit, for example, in the line between the neutral line and the air pump switch.

[0106] It can be seen from this that the implementation of the circuit structure of the air pump device in Examples 1 and 2 is not limited to the illustrated examples. It is understandable that FIG. 13A to FIG. 13C and Fig.14 In the embodiment, the pump core motor component 1 and the pump core motor component 2 are connected in parallel, and the circuits are independent of each other, so even if one fails, it will not affect the other. Fig.15 The pump core motor component 2 in the air pump device needs to rely on the pump core motor component 1 to keep the electrical circuit unobstructed. Therefore, in terms of the availability of the air pump device, FIG. 13A to FIG. 13C and Fig.14 The solution of the embodiment is better than Fig.15 However, the two methods can be applied in different demand scenarios, such as Fig.15 The embodiments can also be applied in scenarios where the normal status of each pump core motor component is required to be high, and in scenarios where it is hoped that once a pump core motor component fails, it can be discovered and repaired immediately.

[0107] In summary, the embodiments of the present disclosure provide an inflation and deflation motor assembly, a module, a booster air pump and a balloon pump device, wherein the inflation and deflation motor assembly comprises: an air inlet, an air outlet, and an airflow cavity connected between the air inlet and the air outlet formed in a shell; at least two pump core motor components are clamped in the airflow cavity to drive the airflow between the air inlet and the air outlet; wherein each of the pump core motor components is provided with an airway, and each of the airways is serially connected through the airflow cavity to form an airflow channel between the air inlet and the air outlet; wherein the at least two pump core motor components can be configured to be started in different numbers to adjust the air pressure in the airflow channel. Thus, the assembly can generate different inflation pressures by starting different numbers of pump core motor components, thereby realizing the requirements of different inflation pressures of the booster air pump device, and multiple pump core motor components can be integrated in the airflow cavity of the pump shell or motor shell in the air pump, without the need for numerous accessories, with a simple structure, low cost and easy assembly.

[0108] The above embodiments are merely illustrative of the principles and effects of the present disclosure, and are not intended to limit the present disclosure. Anyone familiar with the technology may modify or change the above embodiments without violating the spirit and scope of the present disclosure. Therefore, all equivalent modifications or changes made by a person of ordinary skill in the art without departing from the spirit and technical ideas disclosed in the present disclosure shall still be covered by the claims of the present disclosure.

Claims

1. A gas charging and discharging motor assembly with adjustable air pressure, characterized in that: include: An air inlet, an air outlet, and an air flow cavity connected between the air inlet and the air outlet are formed in a housing; At least two pump core motor components are clamped in the airflow cavity and are used to drive the airflow between the air inlet and the air outlet; wherein each of the pump core motor components is provided with an air passage, and each of the air passages is connected in series through the airflow cavity to form an airflow channel between the air inlet and the air outlet; wherein the at least two pump core motor components can be configured to be started in different quantities to adjust the air pressure in the airflow channel.

2. The air pressure adjustable charging and discharging motor assembly according to claim 1, characterized in that: The at least two pump core motor components are coaxially arranged; or, the at least two pump core motor components are arranged flatly with their central axes intersecting; Alternatively, the central axes of the at least two pump core motor components are arranged parallel to each other.

3. The air pressure adjustable charging and discharging motor assembly according to claim 1, characterized in that: Each of the pump core motor components is electrically connected to an air pump switch; the air pump switch has a plurality of adjustable gears, which are respectively used to start a different number of pump core motor components to adjust the air pressure.

4. The air pressure adjustable charging and discharging motor assembly according to claim 1, characterized in that: The air passage in each of the pump core motor components is arranged along its central axis; and / or, each of the pump core motor components is a low-voltage motor; and / or, the opening area of ​​the air passage of each of the pump core motor components corresponding to the air inlet end is larger than the opening area corresponding to the air outlet end.

5. A gas charging and discharging module, characterized in that: include: Motor housing; The charging and discharging motor assembly according to any one of claims 1 to 4 is arranged in the motor housing.

6. A booster air pump device, characterized in that: include: The inflation and deflation module as claimed in claim 5; The pump housing is arranged outside the motor housing.

7. The booster air pump device according to claim 6, characterized in that: The inner wall of the airflow cavity forms a limiting groove corresponding to each of the pump core motor components. Each of the pump core motor components is provided with a flange on the side around its central axis, and the flange is placed in the limiting groove.

8. The booster air pump device according to claim 6, characterized in that: Include at least one of the following: 1) A power supply accommodation space is formed between the pump housing and the motor housing, and the power supply accommodation space accommodates the power lines of the pump core motor components; 2) The pump housing forms a hand-held portion, and the hand-held portion is provided with an air pump switch; 3) The pump housing is provided with at least one heat dissipation portion, and each of the heat dissipation portions includes at least one heat dissipation hole.

9. The booster air pump device according to claim 6, characterized in that: The pump housing and the motor housing cooperate to form a first clamping portion at one end corresponding to the air outlet for clamping the inflation connector; and / or, the pump housing and the motor housing cooperate to form a second clamping portion at one end corresponding to the air inlet for clamping the air suction connector; the inflation connector or the air suction connector is connected to one end of the adapter tube, and the other end of the adapter tube is connected to the inflation device through an air nozzle of an adaptive type.

10. A balloon pump device, characterized in that: include: The pump housing is provided with the air pressure adjustable charging and discharging motor assembly as claimed in claim 1 or 2.

11. The balloon pump device according to claim 10, characterized in that The air flow chamber in the pump housing comprises: A motor chamber and an air-filled chamber that are disposed adjacent to each other and communicate with each other; The pump housing is provided with an air inlet in communication with the air-filled chamber on its side; the at least two pump core motor components are disposed transversely in the air-filled chamber, and one of the pump core motor components is disposed corresponding to the air inlet; The top surface of the pump housing is provided with at least one air outlet communicated with the air-filled chamber.

12. The balloon pump device according to claim 11, characterized in that Each of the air outlets is provided with an inflation nozzle connected via a microswitch bracket; a limiting step portion is formed on the outer wall of the inflation nozzle near one end of the air outlet, and at least one sliding block is protruding from the outer side surface of the limiting step portion; a sliding groove for lifting and cooperating with the sliding block is provided at at least one preset position of the inner circumferential wall of the air outlet, and a limiting wall for stopping the limiting step portion is formed by the upper end surface of the air outlet extending toward the center direction of the inflation nozzle; the microswitch bracket is provided with a microswitch, which is connected in series in the electrical circuit of the at least two pump core motor components, and is used to generate a start / stop signal for the pump core motor component in response to the touching or separation of the inflation nozzle.

13. The balloon pump device according to claim 10, characterized in that Include at least one of the following: 1) The inner wall of the airflow cavity forms a limiting groove composed of limiting ribs corresponding to each pump core motor component, and each pump core motor component is provided with a flange on the side around its central axis, and the flange is placed in the limiting groove; 2) The pump housing further comprises: a power supply accommodating chamber, which is arranged adjacent to the motor chamber and the inflation chamber and is spaced apart from each other, and is used to accommodate the power lines of the motor components of each pump core; 3) The pump housing forms a handheld portion, and the handheld portion is provided with at least one of the following: a balloon knotter; a detachable wire cutter; 4) The top surface of the pump housing is exposed to provide an air pump switch; 5) The top surface of the pump housing is formed with one or more holes for inserting spare air nozzles.

Images