CN223754219U

CN223754219U - Manual mixing pump

Info

Publication number: CN223754219U
Application number: CN202422264031.XU
Authority: CN
Inventors: 阿列克山德列斯库·弗拉德
Original assignee: Individual
Current assignee: Individual
Priority date: 2024-08-25
Filing date: 2024-09-16
Publication date: 2026-01-02
Anticipated expiration: 2034-09-16

Abstract

A manual mixing pump is disclosed, comprising: a body including: 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 hole and a second hole; a first check valve installed in the first hole of the cap portion; a second check valve installed in the first hole of the base portion; a manual pump mechanism including: a piston having a hollow inner chamber; a third check valve; a fourth check valve; a shaft having a hollow internal region and a first end and a second end; and a handle connected to the second end of the shaft outside the body; and a motor-driven pump mechanism including: an impeller mechanism including an impeller element connected to a motor, the motor being configured to rotate the impeller element. According to the manual mixing pump of this disclosure, a hybrid solution combining manual pumping and motor-driven pumping is provided, ensuring reliable operation of the pump under various conditions.

Description

Manual mixing pump

Technical Field

The utility model relates to the technical field of pumps for inflating devices, in particular to a combined pump with motor-assisted and manual operation functions.

Background

Manual pumps, particularly double action manual pumps, are commonly used as a portable tool for inflating and pressurizing objects such as various water toys, watercraft or kites surfing kites. Although these pumps are lightweight and reliable, they require a lot of manpower, often the activity has not yet started, and the user has become tired of getting up and not getting down.

To alleviate this effort, users may choose to charge electrically, but these devices often fail to achieve the boost needed to give the inflated product the proper shape and rigidity. To provide higher pressure and rigidity, a user must use a secondary inflator that incorporates an electric inflator and a compressor. Unfortunately, this type of pump is expensive, cumbersome and cumbersome because it contains an inflator and a compressor in addition to the power source. Furthermore, if the power source is exhausted or the motor fails, the user must reuse the manual pump as a backup.

The utility model discloses an electric auxiliary three-action air pump, which innovatively combines the advantages of electric pumping and manual pumping. The air pump is designed to continuously inflate in an electric mode, which provides a higher boost condition than conventional inflators. In order to obtain the required additional pressure, manual pumping may also be used, with both up-stroke (stroke) and down-stroke to effectively pressurize the object. The "three-way" aspect of this pump means that it is capable of both electric charging and manual pressurization in two strokes. In addition, the manual mode serves as a reliable standby mode in the event of a motor failure or malfunction, ensuring complete inflation and pressurization of the object.

Disclosure of utility model

Technical problem to be solved

In view of the limitations of existing manual pumps and battery powered air compressors, the present utility model provides a manual mixing pump that integrates a double acting manual pump with an electric vane pump. This innovative combination solves the problems of low manual charging efficiency and bulky electric air compressors. By allowing the user to flexibly choose between manual and electric operation, the manual mixing pump ensures easier and more efficient inflation of water toys and other inflatable products. In addition, the manual mixing pump eliminates the electric compressor and is more portable and economical than conventional battery powered air compressors. Furthermore, even in the event of a failure of the electrical mode, the manual operation function of the manual mixing pump greatly enhances its reliability and usability in various situations.

Technical solution to achieve the above object, the present utility model provides a manual mixing pump comprising a main body including 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 hole and a second hole, a first check valve installed in the first hole of the cap portion and configured to allow fluid to enter the interior of the hollow cylindrical portion and to prevent fluid from flowing out of the interior of the hollow cylindrical portion, a second check valve installed in the first hole of the base portion and configured to allow fluid to enter the interior of the hollow cylindrical portion and to prevent fluid from flowing out of the interior of the hollow cylindrical portion, a manual pump mechanism including a piston having a hollow inner chamber and configured to allow fluid to enter the hollow inner chamber from the top of the main body and to prevent fluid from flowing out of the inner chamber of the hollow inner chamber, a handle connected to the hollow shaft and having a second check valve connected to the hollow shaft at the end of the hollow cylindrical portion and the hollow shaft at the end thereof, the piston and the hollow shaft being connected to the hollow shaft at the end and the hollow shaft at the end thereof, and a motor driven pump mechanism comprising an impeller element connected to a motor, the motor configured to rotate the impeller element, the impeller element mounted within 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 a one-way valve, 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 downstroke and upstroke of the handle.

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

The manual pump unit comprises a piston mechanism, and the piston is connected with a double-acting valve. The valve may be inflated by sucking air in during the up-stroke and down-stroke through a one-way valve at both ends of the pump. The piston mechanism is mechanically connected with the electric pump unit, and the electric pump unit is arranged in the manual pump unit, so that the structure is compact and the maintenance is convenient.

The electric pump unit includes a motor, an impeller, and a stator with blades positioned behind the impeller to prevent backflow, and may further include an air inlet filter to prevent foreign materials from entering the pump. The motor is electrically connected with the power supply module, and the power supply module can be a battery pack or an external power supply.

The integrated pressure gauge module is connected to the manual pump unit and the electric pump unit to enable a user to monitor pressure during manual and electric inflation. The pressure gauge is mechanically connected to a display that can show the current pressure level inside the inflatable object.

The system operates in two main modes:

And in the electric mode, starting a motor in the electric pump unit, so that the air is continuously inflated until the object reaches a half-pressurizing state.

Manual mode-double acting manual pumps may be additionally pressurized during both the up-stroke and down-stroke, which may be used to achieve the desired pressure or as a backup in the event of a failure of the electric pump.

To further optimize the technical solution, the power supply module may be powered by a rechargeable battery or an external power supply. The intake filter may be replaced with a different type of filter depending on the operating environment.

Advantageous effects

Compared with the prior art, the utility model provides a novel manual pump, which has the following beneficial effects:

The inflation is more convenient, and because the motor bears most of work, the novel manual pump can more conveniently inflate the large-capacity inflatable object, and the labor is not wasted. This innovation can alleviate the user's tiredness and also simplify the inflation process.

The built-in manual pump can be used as a reliable standby pump to prevent the battery of the motor from being exhausted. This feature ensures continued operation even in the absence of power.

Pressure control-built-in manual pump allows the user to manually increase the pressure beyond the capabilities of the electric pump. This feature allows for better control of the final inflation pressure, meeting the specific needs of the user.

Higher inflation pressure, the electric inflator pump can realize higher final inflation pressure compared with the electric pumps of the same type on the market. This advantage allows for a wide range of applications, ensuring better performance and versatility, as it reduces the effort required to achieve manual pressurization beyond the performance of conventional electric inflators.

Drawings

Fig. 1 shows a perspective view of a preferred embodiment of a manual mixing pump with a piston shaft in an extended position. The main external components are numbered.

Fig. 2 shows a cross-sectional view of a preferred embodiment of the manual mixing pump. The piston shaft with the motor mounted is illustrated in detail and the direction of the motor airflow is indicated. In addition, this figure also indicates the direction of the air flow through the valve allowing double acting manual pumping.

FIG. 3 shows an exploded view of the electric inflator motor, showing the in-line fan, stator blades and motor, with the direction of air flow indicated explicitly.

Detailed Description

The following description of the embodiments of the present utility model will be made with reference to the accompanying drawings. It is noted that the embodiments described below are illustrative, not exhaustive, and that various modifications and equivalent arrangements are possible within the scope of the utility model. Any derivative embodiments that would be realized by those skilled in the art without carrying out the inventive work based on the described embodiments are within the scope of the present utility model.

Referring to fig. 1, in a first embodiment, a manual mixing pump (100) is provided. The pump 100 includes a cylindrical hollow container housing, referred to as a pump body 101 (i.e., a main body), having a first end that serves as a lower end of the pump body and a second end that serves as an upper end of the pump body. The side inlet 103 is connected to an aperture 105 near the bottom of the pump body 101. Attached to the upper end of the pump body 101 is a closure cap 102 that contains a valve cap intake aperture 104 (i.e., a first aperture of the closure cap) with a one-way check valve 171 (i.e., a first one-way valve) that allows fluid intake. An elongate piston shaft 111 extends along the longitudinal axis of the pump body 101 and extends from the aperture 106 in the closure 102 (i.e., the second aperture of the closure). The handle 110 is arranged vertically with respect to the piston shaft 111 for assisting pumping. The handle 110 is provided with a nozzle (not visible) for connection to an inflatable object, either directly or through an air hose with a suitable fitting. The handle carries a pressure gauge 108 positioned so that the inlet portion interfaces with the chamber through which air flows to read the pressure value during operation of the pump.

Referring to fig. 2, an 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 manual pump body. The impeller body assembly 200 includes a battery 182 mounted inside the piston shaft 111, held in place by an adhesive or fastening tape. The battery support assembly 190 provides a mounting point for the battery 182, secured by a resilient member or a suitable adhesive or fastener. The battery support assembly 190 also provides a mounting area for the motor 181, and the motor 181 is connected to the battery 182 in a conventional manner. The motor 181 includes a motor shaft 183 that passes through a central hole of the lower impeller support 122 and is fixed to the motor 181 by screws or other conventional means. Impeller member 124 is coupled to motor shaft 183 by an adhesive or a press-in coupling. An upper impeller support 126 is mounted above the impeller elements 124, is screwed to the lower impeller support 122, and includes a centered exhaust plenum (vent chamber) that includes stationary blades 125 behind the impeller, see in detail fig. 3.

Referring back to fig. 2, the diameter of the aperture 106 in the cover 102 is large enough for the piston shaft 111 to move freely along the vertical axis. A small seal 141 may be installed in a groove in bore 106 to ensure airtight connection of shaft 111 during the up-and down-strokes. The piston 112 is mounted to the lower end of the piston shaft 111 using mating threads or other suitable means. The outer diameter of the piston 112 is slightly smaller than the inner diameter of the pump body 101 so that the piston 112 is free to move on a vertical axis during manual pumping. The piston 112 is hollow, forming an interior chamber that facilitates airflow from the upper chamber 143 and the lower chamber 230 through the piston 112 and into the piston shaft 111. The piston 112 comprises a hollow inner chamber 116 and is provided with an outer seal 142 to ensure airtight separation between the upper reservoir 143 and the lower reservoir 230. A one-way check valve 172 (i.e., a third one-way valve) is installed at an upper surface of the piston 112, and a second one-way check valve 114 (i.e., a fourth one-way valve) is installed at a 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 comprises a rubber O-ring that separates the upper and lower chambers of the pump and acts as a one-way valve allowing fluid to enter the piston during the up-stroke and down-stroke. The O-ring is slightly displaceable to facilitate fluid ingress from one side of the piston while blocking the other side and thereby drawing fluid through the closure and the one-way valve on the base (i.e., the one-way valve on the base acts as a second one-way valve), respectively.

In the manual mode of operation, air in the upper chamber 143 is compressed during the upstroke and discharged through the one-way check valve 172, while the lower chamber 230 is filled with air drawn in from the side air inlet 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 body assembly 200 (i.e., impeller mechanism), through the nozzle 107 or attached hose into the inflatable object. During the downstroke, 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 sucked in through the air inlet 104 of the cover 102, and the piston cover valve 171 is opened, allowing air flow into the upper chamber 143. The compressed air within the lower chamber 230 then 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.

In the electric assist mode, the motor 181 is activated by a switch connecting the battery 182 and the motor 181. The motor 181 rotates the impeller 124 (i.e., the impeller member) to draw air into the pump through the air inlet, causing air flow through the chamber 143 and the chamber 230. In this mode, the piston shaft 111 remains stationary. Air is drawn into the chamber 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 inflated object via the nozzle 107 or attached hose.

In accordance with embodiments of the present disclosure, the motor driven pump mechanism is integrated within the shaft of the pump. This integration allows the pump to operate automatically when energized, supplementing manual operation. The motor driven pump mechanism may be activated to assist or fully operate the pumping process, thereby providing a hybrid solution that combines manual pumping with motor driven pumping. Such a dual mechanism ensures reliable operation of the pump under different conditions, such as when manual operation is more convenient or when motor assistance is required to improve efficiency. The motor-driven pump mechanism is integrated in the shaft, so that space utilization is optimized, the function of the pump is enhanced, and the motor-driven pump mechanism can be suitable for various application scenes. The mixing characteristic of the pump can ensure that the pump can still continuously run under the condition of power failure or more practical manual operation, thereby having more universality and reliability.

The present disclosure describes a manual mixing pump, alternatively referred to as a three-action pump, that may be used to pump air or other fluids. The electric assist mode may be used initially to inflate the inflatable device and then manually pumped to the desired final boost level. The manual mode is operable on both the upstroke and downstroke to provide efficient inflation efficiency. Compared with a secondary air pump powered by a battery, the motor is smaller in size and lower in price, so that the manual mixing pump is lighter in weight and convenient to transport. Purely manual operation may also be used if the battery is depleted or if other problems with the electrical system occur. This dual mode operation ensures that the pump will function properly under a variety of conditions.

Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art will appreciate that various changes and modifications can be made therein without departing from the spirit and scope of the utility model. The appended claims are intended to cover all such variations and modifications.

Claims

1. A manual mixing pump, comprising:

A body including 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 cover portion closing the second end of the hollow cylindrical portion, the cover portion having a first aperture and a second aperture;

A first one-way valve mounted in the first hole of the cover portion, configured to allow fluid to enter the interior of the hollow cylindrical portion and prevent fluid from flowing out of the interior of the hollow cylindrical portion;

A second one-way valve mounted in the first hole of the base portion and 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 pump 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 a 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 a 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 being 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 located inside a hollow cylindrical portion of the body, a central portion of the shaft is located inside a second bore through the cap, and a handle connected to a second end of the shaft outside the body allowing fluid to exit from the second end of the shaft and pass through the handle, and

A motor driven pump mechanism comprising an impeller element connected to a motor, the motor being configured to rotate the impeller element, the impeller element being mounted within 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 a one-way valve;

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 hand mixing pump of claim 1 wherein said piston has a rubber O-ring as a one-way valve that allows fluid to enter said piston during said up-stroke and said down-stroke, said O-ring being capable of slight displacement thereby allowing fluid to enter from one side of said piston while blocking the other side thereby drawing fluid through one-way valves on said cover and said base, respectively.

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

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