Manual mixing pump

Abstract

Disclosed is a manual mixing pump comprising: a body comprising a hollow cylindrical portion having a first end and a second end, a base portion closing the first end, and a cap portion closing the second end, the cap portion having a first bore and a second bore; the first one-way valve is arranged in the first hole of the sealing cover part; the second one-way valve is arranged in the first hole of the base part; a manual pump mechanism comprising a piston having a hollow inner chamber, a third one-way valve, a fourth one-way valve, a shaft having a hollow inner region and first and second ends, and a handle connected to the second end of the shaft outside the body; and a motor-driven pump mechanism comprising: an impeller mechanism comprising an impeller element connected to a motor configured to rotate the impeller element. According to the manual mixing pump disclosed by the invention, a mixing solution combining manual pumping and motor-driven pumping is provided, and reliable operation of the pump under different conditions is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of pump for inflator, specifically relates to the combination pump with motor auxiliary and manual operation function. BACKGROUND

[0002] Manual pumps, particularly dual action manual pumps, are commonly used as a portable tool for inflating and pressurizing objects such as various water toys, boats, or kitesurfing kites. Although these pumps are lightweight and reliable, they require a significant amount of human effort, often leaving the user out of breath before the activity has even begun.

[0003] To alleviate this workload, users can opt for electric inflation; however, these devices are typically unable to achieve the pressurization required to give the inflated product the proper shape and rigidity. To provide higher pressure and rigidity, users must use a secondary inflator that combines an electric inflator and a compressor. Unfortunately, this type of pump is both expensive and cumbersome, as it contains both an inflator and a compressor in addition to the power source. Furthermore, if the power source runs out or the motor malfunctions, the user must resort to using a manual pump as a backup.

[0004] The utility model introduces a kind of electric auxiliary triple action (triple action) air pump, it innovatively combines the advantages of electric pumping and manual pumping. This air pump is designed for continuous inflation in electric mode, and this design can provide higher pressurization compared to traditional inflators. To obtain the required additional pressure, manual pumping can also be used to effectively pressurize the object using the upstroke and downstroke. The "triple action" aspect of this pump refers to its ability to perform electric inflation and manual pressurization in two strokes. In addition, when the motor is powered off or malfunctions, the manual mode serves as a reliable backup mode, ensuring complete inflation and pressurization of the object. SUMMARY

[0005] Technical problems solved

[0006] In view of the limitations of existing manual pumps and battery-powered air compressors, the utility model provides a manual hybrid pump that integrates a dual action manual pump and an electric impeller pump. This innovative combination addresses the issues of low efficiency of manual inflation and the bulkiness of electric air compressors. By allowing users to flexibly choose between manual and electric operation, the manual hybrid pump ensures easier and more efficient inflation of water toys and other inflated products. Additionally, the manual hybrid pump dispenses with an electric compressor, making it more portable and economical than traditional battery-powered air compressors. Furthermore, the manual operation function of the manual hybrid pump greatly enhances its reliability and usability in various situations, even in the event of electrical mode failure.

[0007] Technical solution: To achieve the above-mentioned purpose, the utility model provides a kind of manual mixing pump, it includes: main body, the main body includes: the hollow cylindrical portion with first end and second end, base portion that the first end of the hollow cylindrical portion is closed, and cover portion that the second end of the hollow cylindrical portion is closed, the cover portion has first hole and second hole;First check valve, the first check valve is installed in the first hole of the cover portion, is configured to allow fluid to enter the inside of the hollow cylindrical portion, and prevent fluid from flowing out from the inside of the hollow cylindrical portion;Second check valve, the second check valve is installed in the first hole of the base portion, and is configured to allow fluid to enter the inside of the hollow cylindrical portion, and prevent fluid from flowing out from the inside of the hollow cylindrical portion;Manual pump mechanism, the manual pump mechanism includes: piston with hollow inner chamber, third check valve configured to allow fluid to enter the hollow inner chamber from the top of the main body and prevent fluid from flowing out from the hollow inner chamber, fourth check valve allowing fluid to enter the hollow inner chamber from the bottom of the main body and prevent fluid from flowing out from the hollow inner chamber, shaft with hollow interior region and first end and second end, the first end of the shaft is connected with the piston, so that the hollow interior region of the shaft is connected with the hollow inner chamber, and its position is such that the piston is located in the inside of the hollow cylindrical portion of the main body, the center portion of the shaft is located inside by the second hole of the cover, and handle connected with the second end of the shaft outside the main body, allowing fluid to flow out from the second end of the shaft and through the handle;And motor-driven pump mechanism, the motor-driven pump mechanism includes: impeller mechanism, which includes impeller element connected with motor, the motor is configured to rotate the impeller element, the impeller element is installed in the shaft, so that when the motor rotates the impeller element, fluid is sucked into the inside of the hollow cylindrical portion of the main body by check valve;Wherein, the manual mixing pump is configured to output fluid in manual mode and / or motor-driven mode, the manual mode outputs fluid during the downstroke and upstroke of the handle.

[0008] According to embodiments of the present disclosure, an electrically assisted three-action air pump system is provided, including a manual pump unit, an electric pump unit and an integrated pressure gauge module.

[0009] The manual pump unit includes a piston mechanism connected with a double-acting valve. The valve can be inflated by sucking air through the check valves at both ends of the pump during the upstroke and downstroke. The piston mechanism is mechanically connected with the electric pump unit, and the electric pump unit is installed in the manual pump unit, which is compact in structure and convenient to maintain.

[0010] The electric pump unit includes a motor, an impeller, and a stator with vanes behind the impeller to prevent backflow, and can also contain an air intake filter to prevent debris from entering the pump. The motor is electrically connected to a power module, which can be a battery pack or an external power source.

[0011] The integrated pressure gauge module is connected to both the manual and electric pump units, allowing the user to monitor pressure during both manual and electric inflation. The pressure gauge is mechanically connected to a display that can show the current pressure level inside the inflated object.

[0012] The system operates in two main modes:

[0013] Electric mode: The motor in the electric pump unit is activated, allowing continuous inflation until the object reaches a semi-pressurized state.

[0014] Manual mode: The double-acting manual pump can provide additional pressurization in both upstroke and downstroke, which can be used to achieve the desired pressure or as a backup in case of electric pump failure.

[0015] To further optimize the technical solution, the power module can be powered by a rechargeable battery or an external power source. Depending on the different operating environments, the air intake filter can be replaced with different types of filters.

[0016] Advantages

[0017] Compared with the prior art, the utility model provides a new type of manual pump, which has the following advantages:

[0018] Convenient inflation: Since the motor does most of the work, the new manual pump can more conveniently inflate large-capacity inflatable objects without much effort. This innovation can reduce user fatigue and simplify the inflation process.

[0019] Backup manual pump: The built-in manual pump can serve as a reliable backup pump to prevent the motor battery from running out. This feature ensures continued operation even without power.

[0020] Pressure control: The built-in manual pump allows users to manually increase the pressure beyond the capacity of the electric pump. This feature can better control the final inflation pressure to meet the specific needs of users.

[0021] Higher inflation pressure: Compared with similar electric pumps on the market, this electric inflation pump can achieve higher final inflation pressure. This advantage makes it widely applicable, ensuring better performance and versatility, as it reduces the amount of work required for manual pressurization to achieve performance beyond traditional electric inflators. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1Perspective view of the preferred embodiment of the hand-mixing pump showing the piston shaft in the extended position. The major external components are numbered.

[0023] Figure 2 Cross-sectional view of the preferred embodiment of the hand-mixing pump. The motorized piston shaft is shown in detail and the direction of the air flow is indicated. In addition, the direction of the air flow through the valve that allows for double-acting hand-pumping is indicated.

[0024] Figure 3 Exploded view of the motorized air pump motor showing the inline fan, stator blades and motor with the direction of air flow clearly indicated. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be described clearly and completely below with reference to the drawings. It should be noted that the embodiments described below are illustrative and not exhaustive, and various modifications and equivalent arrangements can be made within the scope of the utility model. Any derived embodiments realized by those skilled in the art based on the described embodiments without creative work belong to the scope of the utility model.

[0026] Referring to Figure 1 In the first embodiment, a hand-mixing pump (100) is provided. The pump 100 comprises a cylindrical hollow container housing, referred to as the pump body 101 (i.e. the main body), having a first end and a second end, with the first end as the lower end of the pump body and the second end as the upper end of the pump body. A side air inlet 103 is connected to an aperture 105 near the bottom of the pump body 101. A cap 102 is connected to the upper end of the pump body 101, which contains a valve cap air inlet aperture 104 (i.e. the first aperture of the cap) with a one-way check valve 171 (i.e. the first one-way valve) to allow fluid to be drawn in. An elongated piston shaft 111 extends along the longitudinal axis of the pump body 101 and protrudes from an aperture 106 (i.e. the second aperture of the cap) on the cap 102. A handle 110 is arranged perpendicularly with respect to the piston shaft 111 for assisting in pumping. A nozzle (not visible) is provided on the handle 110 for direct connection to an inflatable object or through an air hose with appropriate fittings. A pressure gauge 108 is mounted on the handle, positioned such that the air inlet portion is in communication with the chamber through which air flows, so as to read the pressure value during operation of the pump.

[0027] Referring to Figure 2The impeller body assembly 200 is mounted inside the piston shaft 111. The impeller body assembly 200 draws air through the natural air intake of the hand pump body. The impeller body assembly 200 includes a battery 182 which is mounted inside the piston shaft 111 and secured in place by adhesive or fastening straps. The battery support assembly 190 provides a mounting point for the battery 182 which is secured by resilient members or suitable adhesive or fasteners. The battery support assembly 190 also provides a mounting area for the motor 181 which is connected to the battery 182 in a conventional manner. The motor 181 includes a motor shaft 183 which passes through the central bore of the lower impeller support 122 and is secured to the motor 181 by screws or other conventional means. The impeller element 124 is attached to the motor shaft 183 by adhesive or a press fit coupling. The upper impeller support 126 is mounted over the impeller element 124 and is secured to the lower impeller support 122 by screws and includes a centrally located vent chamber which includes a fixed vane 125 behind the impeller, as described in more detail below. Figure 3 .

[0028] Looking back Figure 2 The hole 106 in the cap 102 is sized large enough for the piston shaft 111 to move freely along the vertical axis. A small seal 141 can be mounted in a groove in the hole 106 to ensure an air tight connection of the shaft 111 during the upstroke and downstroke. The piston 112 is mounted at the lower end of the piston shaft 111 using mating threads or other suitable means. The piston 112 is slightly smaller in diameter than the interior of the pump body 101 so that the piston 112 can move freely along the vertical axis during the hand pumping process. The piston 112 is hollow, forming an internal chamber, to facilitate air flow from the upper chamber 143 and the lower chamber 230 through the piston 112 into the piston shaft 111. The piston 112 includes a hollow interior chamber 116 and is fitted with an outer seal 142 to ensure an air tight separation between the upper reservoir chamber 143 and the lower reservoir chamber 230. A one-way check valve 172 (i.e., third one-way valve) is mounted on the upper surface of the piston 112 and a second one-way check valve 114 (i.e., fourth one-way valve) is mounted on the lower surface. The one-way check valve 114 allows air flow into the hollow shaft 111 during the downstroke and prevents air flow from escaping into the chamber 230 during the upstroke. In another embodiment, the piston contains a rubber O-ring which separates the upper and lower chambers of the pump and acts as a one-way valve allowing fluid to enter the piston during the upstroke and downstroke, respectively. The O-ring can be slightly displaced to allow fluid to enter from one side of the piston while blocking the other side, which in turn draws in fluid through the one-way valves on the cap and base (i.e., the one-way valve on the base as the second one-way valve).

[0029] In the manual mode, air in the upper chamber 143 is compressed during the upstroke and expelled through the one-way check valve 172, while the lower chamber 230 is filled with air drawn in from the side intake 103. At the same time, the piston one-way check valve 114 seals against the valve seat, preventing air from leaking from the upper chamber 143 to the lower chamber 230. The compressed air in the upper chamber 143 flows through the piston valve 172, into the hollow center of the piston and through the shaft 111, through the impeller motor assembly 200 (i.e., impeller mechanism), and into the inflatable object through the nozzle 107 or attached hose. During the downstroke, the air in the lower chamber 230 is compressed and expelled through the one-way check valve 114 into the piston cavity 116. At the same time, the upper chamber 143 is filled with air drawn in through the intake 104 of the cap 102, and the piston cap valve 171 is open, allowing air flow into the upper chamber 143. Then, the compressed air in the lower chamber 230 flows through the piston and shaft, through the impeller motor assembly 200 and handle 110, and into the inflatable object through the nozzle 107 or attached hose.

[0030] In the electrically assisted mode, the motor 181 is activated by the switch connecting the battery 182 and the motor 181. The motor 181 drives the impeller 124 (i.e., impeller element) to rotate, drawing air into the pump through the intake, causing air flow through the chambers 143 and 230. In this mode, the piston shaft 111 remains stationary. Air is drawn into the chambers and through the piston 112 into the hollow center of the shaft 111, where it is pushed by the impeller through the stator blades, motor 181, and handle 110, and finally into the inflatable object via the nozzle 107 or attached hose.

[0031] According to embodiments of the present disclosure, the motor-driven pump mechanism is integrated within the shaft of the pump. This integration enables the pump to operate automatically when powered on, supplementing manual operation. The motor-driven pump mechanism can be activated to assist or fully operate the pumping process, providing a hybrid solution that combines manual pumping and motor-driven pumping. This dual mechanism ensures reliable operation of the pump under different conditions, such as when manual operation is more convenient or when motor assistance is needed to improve efficiency. The integration of the motor-driven pump mechanism within the interior of the shaft optimizes space utilization, enhancing the functionality of the pump and enabling it to be suitable for a variety of application scenarios. The hybrid nature of the pump allows it to continue operating continuously in the event of a power failure or when manual operation is more practical, thereby increasing its versatility and reliability.

[0032] The present disclosure describes a hand-mixing pump, or tri-action pump, that can be used to pump air or other fluids. It can initially be used in an electrically assisted mode to inflate an inflatable device, and then reach a desired final inflation level through manual pumping. The hand-mixing pump is operable in both upstroke and downstroke, thereby providing efficient inflation efficiency. The motor and battery of the present invention are smaller and less expensive than a two-stage air pump that relies solely on battery power, so the hand-mixing pump of the present invention is lighter in weight and easier to transport. If the battery runs out of power or other electrical problems arise, the hand-mixing pump can still be operated manually. This dual mode operation ensures that the pump will work properly under a variety of conditions.

[0033] Although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood that various changes and modifications can be made without departing from the spirit and scope of the present invention. The appended claims are intended to cover all such changes and modifications.

Claims

1. A hand-mixing pump, characterized in that Comprising: a body comprising a hollow cylindrical portion having a first end and a second end, a base portion closing the first end of the hollow cylindrical portion, and a cap portion closing the second end of the hollow cylindrical portion, the cap portion having a first aperture and a second aperture; a first one-way valve mounted in the first aperture of the cap portion configured to allow fluid to enter the interior of the hollow cylindrical portion and prevent fluid from exiting the interior of the hollow cylindrical portion; a second one-way valve mounted in the first aperture of the base portion configured to allow fluid to enter the interior of the hollow cylindrical portion and prevent fluid from exiting the interior of the hollow cylindrical portion; a manual pumping mechanism comprising a piston having a hollow interior chamber, a third one-way valve configured to allow fluid to enter the hollow interior chamber from the top of the body and prevent fluid from exiting the hollow interior chamber, a fourth one-way valve allowing fluid to enter the hollow interior chamber from the bottom of the body and prevent fluid from exiting the hollow interior chamber, a shaft having a hollow interior region and a first end and a second end, the first end of the shaft connected to the piston such that the hollow interior region of the shaft is connected to the hollow interior chamber and positioned such that the piston is inside the hollow cylindrical portion of the body, a central portion of the shaft is inside the second aperture of the cap, and a handle connected to the second end of the shaft outside of the body allowing fluid to exit the second end of the shaft and through the handle; and a motor-driven pumping mechanism comprising an impeller mechanism comprising an impeller element connected to a motor configured to rotate the impeller element, the impeller element mounted inside the shaft such that when the motor rotates the impeller element, fluid is drawn into the interior of the hollow cylindrical portion of the body through the one-way valves; wherein the manual mixing pump is configured to output fluid in a manual mode and / or a motor-driven mode, the manual mode outputting fluid during a downstroke and an upstroke of the handle.

2. The manual mix pump of claim 1, wherein, The piston has a rubber O-ring as a one-way valve that allows fluid to enter the piston during the upstroke and the downstroke; the O-ring is capable of slight displacement, thereby allowing fluid to enter from one side of the piston while blocking the other side, in turn drawing fluid through the one-way valves on the cap and the base, respectively.

3. The manual mix pump of claim 1, wherein, The motor-driven pumping mechanism is powered by an internal or external power source.

4. The manual mix pump of claim 1, wherein, The motor-driven pumping mechanism further comprises stator vanes to assist in preventing backflow within the manual mixing pump.

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