CN221195350U

CN221195350U - Portable inflating pump

Info

Publication number: CN221195350U
Application number: CN202322792774.XU
Authority: CN
Inventors: 周龙鹏
Original assignee: Chengdu Chendian Intelligent Technology Co ltd
Current assignee: Chengdu Chendian Intelligent Technology Co ltd
Priority date: 2023-10-18
Filing date: 2023-10-18
Publication date: 2024-06-21
Anticipated expiration: 2033-10-18

Abstract

The utility model relates to a portable inflating pump, and belongs to the technical field of air pumps. Comprises a shell, wherein the shell is provided with an inflation chamber; the inflation needle is arranged on the shell and is communicated with the inflation cavity; the inflation structure is arranged on the shell; the pressure relief structure at least comprises a pressure relief channel, a pressing piece and an elastic piece; the pressure release channel is formed in the shell and is communicated with the inflating cavity, and the pressing piece is arranged in the pressure release channel through the elastic piece so as to open or close the pressure release channel. The pressure relief structure is added, so that a user does not need to pull out the inflating needle to perform the pressure relief process, and the pressure relief operation of an object to be inflated is faster and more convenient; the pressure release time is controllable, so that a user can release the pressure to a desired state according to the filling state of the object to be filled; the inflation structure can adopt a miniature diaphragm pump, so that the inflation pump provided by the embodiment has the advantages of small volume, low noise and small structural heating value.

Description

Portable inflating pump

Technical Field

The utility model belongs to the technical field of air pumps, and particularly relates to a portable inflating pump.

Background

With the development of cities, under the drive of factors such as resident living standard improvement, policy encouragement, health consciousness arousal, sports event catalysis, sports spirit encouraging and the like, the attention degree of people to sports is increased, various sports products are upgraded, and the demands of consumers on sports products are more specialized and differentiated; the balls are the main current sport mode, the sport population ratio is high, the inflation of various balls still adopts a manual inflation mode, and the air pressure of the balls is defined only by the hand feeling; along with the progress of time, people gradually perfect the understanding of ball products, and the specialty of motion improves gradually, can realize gradually that the accuracy of ball atmospheric pressure produces the subtle influence to ball motion, and more portable, faster, more accurate ball inflation mode has also become a real needs.

The like products in the current market still have large volume, are inflated slowly, and only have the pressurization function, when product air pressure is due to setting or other reasons and is caused to be beaten, the manual plug air nozzle is needed to release pressure, the quick pressure release operation can not be realized, and the problems of repeated inflation, air pressure adjustment and the like exist.

Disclosure of utility model

In order to solve the problems in the prior art, the utility model provides a portable inflating pump.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

there is provided a portable inflation pump comprising:

The shell is provided with an inflation chamber;

The inflation needle is arranged on the shell and is communicated with the inflation cavity;

The inflation structure is arranged on the shell, and can supplement gas to the inflation cavity, so that the gas is supplemented into an object to be inflated by the inflation needle;

The pressure relief structure at least comprises a pressure relief channel, a pressing piece and an elastic piece;

The pressure release channel is formed in the shell and is communicated with the inflation cavity, and the pressing piece is arranged in the pressure release channel through the elastic piece so as to open or close the pressure release channel.

Preferably, the pressing member has a blocking configuration and a stopping configuration;

Wherein the blocking structure is disposed in the pressure relief passage, the blocking structure is capable of being pressed out of the pressure relief passage, and the blocking structure is capable of blocking the pressure relief passage by rebound of the elastic member; and

The blocking structure can be abutted with the port wall surface of the pressure release channel so as to block the action of the blocking structure.

Preferably, the method further comprises:

a guide structure including a guide structure a and a guide structure B, the guide structure a being formed at the pressing piece, and the guide structure B being formed at a position of the housing in the pumping chamber;

wherein, the both ends of elastic component can block to guide structure A and guide structure B.

Preferably, the method further comprises:

The sealing piece is arranged on the blocking structure and can be abutted with the port wall surface of the pressure relief channel so as to form a sealing structure between the pressing piece and the pressure relief channel.

Preferably, the inflatable structure comprises:

The pneumatic membrane assembly is arranged on the shell and at least forms a plurality of air chambers;

The driving assembly is arranged on the shell and is connected with the air chamber;

Wherein the drive assembly is capable of causing the air chamber to undergo tension and compression deformations to replenish air to the pumping chamber.

Preferably, the pneumatic membrane assembly comprises at least:

The air disc is arranged on the shell and is provided with a plurality of air chambers;

The valve seat is covered to the air disc, a plurality of air holes are formed in the surface of the valve seat, and the air holes are provided with one-way valves.

Preferably, the drive assembly comprises at least:

the driving motor is arranged at the position, close to the bottom of the shell, of the shell;

The driving rod is connected with the driving end of the driving motor;

the driving seat is rotationally connected with the driving rod, wherein the driving seat at least forms a plurality of action heads, and the action heads are connected with the bottom surface of the air chamber;

And the eccentric wheel is sleeved on the driving rod, and when the driving motor drives the driving rod to rotate, the eccentric wheel drives the end part of the rotating rod to rotate around the axis so as to drive the plurality of actuating heads to alternately compress or stretch the air chamber.

Preferably, the method further comprises:

The air pressure detection device is arranged in the pumping chamber to detect the air pressure in the pumping chamber.

Preferably, a receiving chamber is formed at the lower end of the housing, and is opened or closed by an end cap rotatably connected to the housing, wherein the receiving chamber forms at least a mounting port, and the air needle is detachably connected to the housing so as to be detachably mounted to the mounting port when not in use, and is received.

Preferably, the method further comprises:

and the power supply module is at least in electric control connection with the driving motor so as to provide electric energy for the driving motor.

The utility model provides a portable inflating pump, which has the beneficial effects that:

The pressure relief structure is added, so that a user does not need to pull out the inflating needle to perform the pressure relief process, and the pressure relief operation of an object to be inflated is faster and more convenient;

The pressure release time is controllable, so that a user can release the pressure to a desired state according to the filling state of the object to be filled;

The inflation structure can adopt a miniature diaphragm pump, so that the inflation pump provided by the embodiment has the advantages of small volume, low noise and small structural heating value.

Drawings

FIG. 1 is a perspective view of a portable inflation pump according to the present utility model;

FIG. 2 is a second perspective view of the portable inflation pump of the present utility model;

Fig. 3 is a perspective view of a hidden part of a casing of a portable air pump according to the present utility model;

FIG. 4 is a second perspective view of a hidden portion of a housing of a portable air pump according to the present utility model;

FIG. 5 is a perspective view of an inflatable structure of a portable inflation pump according to the present utility model;

FIG. 6 is a second perspective view of the inflatable structure of the portable inflation pump according to the present utility model;

FIG. 7 is a front cross-sectional view of a portable inflation pump according to the present utility model;

FIG. 8 is a side cross-sectional view of a portable inflation pump according to the present utility model;

FIG. 9 is an enlarged view of a portion of the structure shown in FIG. 8;

FIG. 10 is a block diagram of a drive assembly in a portable inflation pump according to the present utility model;

FIG. 11 is a block diagram of an air tray in the portable inflation pump of the present utility model;

fig. 12 is a structural diagram of a pressure relief assembly in the portable inflation pump according to the present utility model.

Description of the reference numerals

1. A housing; 101. an inflation chamber; 2. inflating the needle; 3. an inflatable structure; 301. a pneumatic membrane assembly; 3011. a gas chamber; 3012. an air tray; 3013. a valve seat; 302. a drive assembly; 3021. a driving motor; 3022. a driving seat; 3023. an eccentric wheel; 3024. an action head; 3025. a driving rod; 4. a pressure relief structure; 401. a pressure relief channel; 402. a pressing member; 4021. a plugging structure; 4022. a stop structure; 403. an elastic member; 501. a guide structure A; 502. a guide structure B; 6. a seal; 7. an air pressure detecting device; 8. a power module; 9. a housing chamber; 901. a mounting port; 10. an end cap.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1 to 12, the following embodiments of the present utility model are provided:

As shown in fig. 1, 8, 9 and 12, a first embodiment of the present utility model proposes a portable inflating pump comprising:

A housing 1, said housing 1 having an inflation chamber 101;

An inflation needle 2 provided in the housing 1 and communicating with the inflation chamber 101;

An inflation structure 3 disposed in the housing 1, wherein the inflation structure 3 is capable of replenishing the inflation chamber 101 with gas so that the gas is replenished into the object to be inflated by the inflation needle 2;

The pressure release structure 4, the pressure release structure 4 at least comprises a pressure release channel 401, a pressing piece 402 and an elastic piece 403;

The pressure release channel 401 is formed in the housing 1 and is in communication with the pumping chamber 101, and the pressing member 402 is disposed in the pressure release channel 401 through the elastic member 403, so as to open or close the pressure release channel 401.

In this embodiment, an air hole is formed at the end of the housing 1, and the air needle 2 is detachably connected to the air hole. Specifically, the air hole may be formed with an external thread or an internal thread, and the end of the air needle 2 is formed with a mounting cap with an internal thread or an external thread, both of which form a detachable connection in a screwed-on manner, so that the air needle 2 is mounted to the air hole when the object to be inflated, such as balls, is inflated.

The interior of the housing 1 is a hollow chamber, and the hollow chamber near the upper side of the housing 1 forms an inflation chamber 101. The inflating structure 3 can supplement the inflating chamber 101 with gas, and the gas enters the inflating chamber 101 and then enters the object to be inflated through the inflating needle 2.

In one embodiment, it is desirable that the inflating pump has a small size for convenience of carrying, and on the other hand, it is desirable that the noise generated by the inflating pump is relatively small, and thus, the inflating structure 3 may employ a micro diaphragm pump, so that the inflating pump according to the present embodiment has the advantages of small size, low noise and small structural heat generation.

On the basis of the above, the pumping chamber 101 is provided with a pressure release structure 4. The following considerations apply to the pressure relief structure 4:

First, it is desirable that the pressure release structure 4 does not affect the air tightness of the pumping chamber 101 during pumping to ensure pumping efficiency.

Secondly, when pressure release is needed, the pressure release structure 4 can play a role in time so as to lead out the gas in the object to be filled, and the pressure release time is controllable.

Based on this, we further define the pressure relief structure 4, where the pressure relief structure 4 is composed of a pressure relief channel 401, a pressing member 402, and an elastic member 403.

The pressure release channel 401 communicates the pumping chamber 101 with the external environment (relative to the interior of the housing 1) to form a gas outlet path, and the pressing member 402 is connected to the pressure release channel 401 through the elastic member 403. The pressing piece 402 has the following states:

Firstly, when the air is inflated, due to the action of the elastic piece 403, the pressing piece 402 is abutted against the pressure release channel 401 to seal the pressure release channel 401, so that the air inflation chamber 101 is closed to form a closed state, and the air is prevented from overflowing;

Secondly, when carrying out the pressure release, accessible pushes down presses down the piece 402 for press the piece 402 no longer shutoff pressure release passageway 401, open pressure release passageway 401 promptly, make gas can follow pressure release passageway 401 through inflating cavity 101 and derive, and then realize the pressure release process. And the pressure relief operation can be stopped at any time according to the filling state of the object to be filled, namely the pressure relief time is controllable, so as to ensure that the object to be filled is in the optimal filling state.

Therefore, the inflation pump provided in this embodiment has at least the following effects:

Firstly, the pressure relief structure 4 is added, so that a user does not need to pull out the inflating needle 2 to perform the pressure relief process, and the pressure relief operation of an object to be inflated is faster and more convenient;

Secondly, the pressure release time is controllable, so that a user can release the pressure to a desired state according to the filling state of the object to be filled.

The pressure release structure 4 includes a pressure release passage 401, a pressing piece 402, and an elastic piece 403.

As shown in fig. 8 and 9, a second embodiment of the present utility model proposes a portable inflation pump, and on the basis of the first embodiment, the pressing member 402 has a blocking structure 4021 and a stopping structure 4022;

Wherein the blocking structure 4021 is disposed in the pressure relief channel 401, the blocking structure 4021 is capable of being pressed to be separated from the pressure relief channel 401, and the blocking structure 4021 is capable of blocking the pressure relief channel 401 by rebound of the elastic member 403; and

The stopper structure 4022 can abut against a port wall surface of the pressure release passage 401 to stop the operation of the blocking structure 4021.

In the present embodiment, the specific structure of the pressing piece 402 is defined.

Wherein the pressing member 402 includes at least a blocking structure 4021 and a stopping structure 4022.

For the occlusion configuration 4021, the shape and size thereof may be determined according to the shape and size of the pressure relief channel 401. And the plugging structure 4021 is disposed in the pressure release channel 401, preferably, the circumferential wall surface of the plugging structure 4021 can be in sliding contact with the pressure release channel 401, and in this structural form, the plugging structure 4021 needs to completely exit the pressure release channel 401 to ensure the gas to be led out. On the other hand, a certain gap may exist between the circumferential wall surface of the blocking structure 4021 and the inner wall surface of the pressure release channel 401 to form a gas flow channel, and at this time, only a part of the distance needs to be ensured to be retracted by the blocking structure 4022 when pressure release is performed, that is, the blocking structure 4022 does not block the port of the pressure release channel 401 any more, so that gas is led out from the gas flow channel. The two structural forms can realize the gas guiding-out process and can be selected according to actual requirements.

As for the blocking structure 4022, it is formed at the end of the blocking structure 4021 at the inflation chamber 101. In one aspect, the wall thereof facing the pressure relief channel 401 is a sealing surface for abutting against the port of the pressure relief channel 401 to block movement of the seal structure 4021 and form a seal of the port of the pressure relief channel 401. On the other hand, the wall surface of the back pressure relief channel 401 is a stress surface, and in the pumping process, the stress surface bears the acting force from the elastic member 403, so that the sealing surface can form a tight seal with the port of the pressure relief channel 401, and furthermore, the stress surface also bears the pressure of the gas in the pumping chamber 101, so that the sealing surface is further in close contact with the port of the pressure relief channel 401, the gas is prevented from overflowing, and the sealing performance of the pumping chamber 101 is ensured.

As shown in fig. 8 and 9, a third embodiment of the present utility model provides a portable air pump, and further includes, based on the previous embodiment:

A guide structure including a guide structure a501 and a guide structure B502, the guide structure a501 being formed on the pressing piece 402, and the guide structure B502 being formed at a position where the housing 1 is located in the inflation chamber 101;

Wherein, both ends of the elastic member 403 may be snapped to the guide structures a501 and B502.

In this embodiment, a guide structure is also included.

The guiding construction comprises guiding construction a501 and guiding construction B502. The guiding structure a501 may be in a groove form, and the guiding structure B502 may also be in a groove form, where two ends of the elastic element 403, for example, a spring, are respectively assembled in the groove to ensure that the installation position of the elastic element 403 is fixed, so that the elastic element is stable during rebound.

As shown in fig. 12, a fourth embodiment of the present utility model provides a portable inflation pump, and further includes, based on the previous embodiment:

And a seal 6 provided on the stopper 4022, wherein the seal 6 can abut against a port wall surface of the pressure release passage 401 to form a seal structure between the pressing member 402 and the pressure release passage 401.

In the present embodiment, a seal 6 is also included. As described above, it is desirable that the presence of the pressure release structure 4 does not adversely affect the sealing performance of the pumping chamber 101, and therefore the seal 6 is added to the sealing surface of the stopper structure 4022.

The sealing member 6 is abutted against the port wall surface of the pressure release channel 401 to further form a sealing structure, so that the sealing performance of the position is improved.

In one embodiment, the seal 6 is a sealing ring or ring. Which is sleeved on the end of the blocking structure 4021 and contacts the sealing surface of the blocking structure 4022.

As shown in fig. 3 to 6, a fifth embodiment of the present utility model proposes a portable inflation pump, and based on the above embodiment, the inflation structure 3 includes:

A pneumatic membrane module 301 disposed on the housing 1, wherein the pneumatic membrane module 301 forms at least a plurality of air chambers 3011;

A driving unit 302 provided in the housing 1 and connected to the air chamber 3011;

Wherein the drive assembly 302 is capable of causing the gas chamber 3011 to undergo tensile and compressive deformations to replenish the gas to the pumping chamber 101.

In the present embodiment, the inflatable structure 3 is specifically defined.

Wherein the air membrane assembly 301 is assembled within the housing 1, and the air membrane assembly 301 is formed with a plurality of air cells 3011, and the plurality of air cells 3011 assume an elastic configuration. The plenum 3011 is a hollow chamber with its bottom connected to the drive assembly 302.

The driving assembly 302 forms at least one driving action for causing the chamber 3011 to undergo tensile deformation and compressive deformation, and as the deformation occurs, the chamber 3011 is enabled to suck a certain amount of gas and compress it into the pumping chamber 101, so as to perform the pumping process.

The supplementary form of the gas may be referred to as follows:

First, an air inlet hole is formed in the position, close to the air chamber 3011, of the housing 1, and a one-way valve is assembled to supplement air.

Secondly, the tightness of the housing 1 may be relatively lowered so that gas may enter through the assembly gap of the housing 1, thereby completing the gas replenishment process.

Of course, the two forms can be selected according to actual requirements.

As shown in fig. 6, a sixth embodiment of the present utility model proposes a portable inflation pump, and based on the previous embodiment, the pneumatic membrane module 301 at least includes:

an air tray 3012 provided in the housing 1, the air tray 3012 being formed with a plurality of the air cells 3011;

The valve seat 3013 is covered on the air disk 3012, and a plurality of air holes are formed in the surface of the valve seat 3013, and the air holes are provided with one-way valves.

In the present embodiment, the pneumatic membrane module 301 is specifically defined.

As shown in fig. 11, wherein the pneumatic membrane assembly 301 is composed of a gas disk 3012 and a valve seat 3013. The air disk 3012 is integrally formed with an elastic configuration, and a plurality of air cells 3011, such as 2, 4, 6 … …, and the like, are formed. The number of which can be selected according to the actual requirements. A valve seat 3013 is provided on the upper end surface of the air plate 3012, an air hole with a unidirectional air intake structure is provided on the surface of the valve seat 3013, and air compressed by the air chamber 3011 enters the air inflation chamber 101 through the air hole to form an inflation process.

As shown in fig. 3 to 10, a seventh embodiment of the present utility model provides a portable air pump, and based on the above embodiment, the driving assembly 302 at least includes:

A driving motor 3021 provided at the housing 1 and close to the bottom of the housing 1;

A driving rod 3025 connected to the driving end of the driving motor 3021;

A driving seat 3022 rotatably connected to the driving rod 3025, wherein the driving seat 3022 is formed with at least a plurality of operation heads 3024, and the operation heads 3024 are connected to the bottom surface of the air chamber 3011;

And an eccentric wheel 3023 sleeved to the driving rod 3025, wherein when the driving motor 3021 drives the driving rod 3025 to rotate, the eccentric wheel 3023 drives the end part of the rotating rod to rotate around the axis, so as to drive the plurality of actuating heads 3024 to alternately compress or stretch the air chamber 3011.

In the present embodiment, the specific structure of the driving assembly 302 is defined.

During operation, the driving end of the driving motor 3021 rotates to drive the driving rod 3025 to rotate, the end part of the driving rod 3025 is rotationally connected with the driving seat 3022, due to the eccentric wheel 3023, the driving rod 3025 is eccentric towards one end with larger weight of the eccentric wheel 3023 during rotation, the end part of the driving rod 3025 is rotated around the axis, the rotating motion drives the motion head 3024 to swing, and the motion of stretching or compressing the air chamber 3011 is alternately performed, so that air is continuously supplemented into the air pumping chamber 101, and the air pumping process is completed.

In one embodiment, parameters of each structure are defined.

The number of the air chambers 3011 is 4, the diameter of each air chamber 3011 is more than 12mm, the depth is more than 5mm, the rotating speed of the driving motor 3021 is between 7500 and 8000, the eccentric angle of the eccentric wheel 3023 is 60 degrees, the goal of inflating speed and highest air pressure can be easily achieved only if all parameters meet the requirements, and meanwhile, the noise of the pump can be controlled within 65 db.

In order to maintain a certain pumping speed, while guaranteeing the volume: 70s pump the soccer # 7 from 0psi to 10psi, with a flow rate of 8.5LPM. And up to 23psi/160kpa. The size of the whole machine body is only 90 multiplied by 55 multiplied by 37mm, the total weight of the whole machine is only 175g, and the whole machine is lower than other products.

As shown in fig. 8, an eighth embodiment of the present utility model provides a portable inflation pump, and further includes, based on the previous embodiment:

the air pressure detecting device 7 is disposed in the pumping chamber 101 to detect the air pressure in the pumping chamber.

In the present embodiment, an air pressure detecting device 7 is also included. The air pressure detecting means 7 may be an air pressure gauge which is fitted in the pumping chamber 101 to detect the air pressure. On the basis of the above, a display device, such as a screen, may be provided on the housing 1 and electrically connected to the gas pressure detecting device to display the gas pressure on the display device in real time.

As shown in fig. 1 and 2, a ninth embodiment of the present utility model proposes a portable air pump, and on the basis of the above embodiment, a receiving chamber 9 is formed at a lower end of the housing 1, the receiving chamber 9 is opened or closed by an end cap 10 rotatably connected to the housing 1, wherein the receiving chamber 9 forms at least a mounting port 901, and the air pump 2 is detachably connected to the housing 1 so as to be detachably mounted to the mounting port 901 when not in use.

In the present embodiment, the lower end surface of the housing 1 is formed with the housing chamber 9, and the housing chamber 9 can be opened or closed by the end cover 10. The housing chamber 9 is internally provided with a mounting port 901, the mounting port 901 is communicated with the inside of the housing 1, and when the inflating pump is not used, the inflating needle 2 can be detached and assembled at the mounting port 901, wherein the needle body of the inflating needle 2 is arranged in the inside of the housing 1 so as to completely house the inflating needle 2.

As shown in fig. 7, a tenth embodiment of the present utility model provides a portable inflation pump, and further includes, based on the previous embodiment:

And the power supply module 8 is electrically connected with at least the driving motor 3021, so as to provide electric energy for the driving motor 3021.

In the present embodiment, a power supply module 8 is also included. The power module 8 is used to provide power to the associated structure. The power module 8 may be a high-rate rechargeable battery, with a specification of 3.7v,1400mah, and a discharge rate of > 5C. The battery maximum discharge current may exceed 7A. The motor is controlled to start or stop through the key switch and the circuit board, and a USB-C data line is adopted for charging, wherein a USB interface is arranged in the accommodating chamber 9.

In describing embodiments of the present utility model, it is to be understood that terms "upper", "lower", "front", "rear", "left", "right", "horizontal", "center", "top", "bottom", "inner", "outer", and the like indicate an azimuth or positional relationship.

In describing embodiments of the present utility model, it should be noted that the terms "mounted," "connected," and "assembled" are to be construed broadly, as well as being either fixedly connected, detachably connected, or integrally connected, unless otherwise specifically indicated and defined; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the description of embodiments of the utility model, a particular feature, structure, material, or characteristic may be combined in any suitable manner in one or more embodiments or examples.

In the description of the embodiments of the present utility model, it is to be understood that "-" and "-" denote the same ranges of the two values, and the ranges include the endpoints. For example: "A-B" means a range greater than or equal to A and less than or equal to B. "A-B" means a range of greater than or equal to A and less than or equal to B.

In the description of embodiments of the present utility model, the term "and/or" is merely an association relationship describing an association object, meaning that three relationships may exist, e.g., a and/or B, may represent: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A portable inflation pump, comprising:

The shell is provided with an inflation chamber;

2. The portable inflation pump of claim 1, wherein the compression member has a blocking configuration and a blocking configuration;

3. The portable inflation pump of claim 1 or 2, further comprising:

4. The portable inflation pump of claim 2, further comprising:

5. A portable inflation pump according to claim 3, wherein the inflation structure comprises:

6. The portable inflation pump of claim 5, wherein the pneumatic membrane assembly comprises at least:

7. The portable inflation pump of claim 5, wherein the drive assembly comprises at least:

The driving rod is connected with the driving end of the driving motor;

And the eccentric wheel is sleeved on the driving rod, and when the driving motor drives the driving rod to rotate, the eccentric wheel drives the end part of the driving rod to rotate around the axis so as to drive the plurality of actuating heads to alternately compress or stretch the air chamber.

8. A portable inflation pump as claimed in claim 3, further comprising:

9. The portable inflation pump of claim 8, wherein the housing is formed with a receiving chamber at a lower end thereof, the receiving chamber being opened or closed by an end cap rotatably coupled to the housing, wherein the receiving chamber forms at least a mounting port, and wherein the inflation needle is detachably coupled to the housing to be removably and fixedly received in the mounting port when not in use.

10. The portable inflation pump of claim 7, further comprising: