Portable inflating pump

Abstract

The utility model provides a portable inflation pump which comprises a machine shell, a pump body, a pump cover and a pump cover. The supporting base is arranged in the machine shell, two cylinder barrels arranged in a spaced mode and two supporting parts arranged on the opposite sides of the two cylinder barrels respectively are arranged on the supporting base, one side of each cylinder barrel is open, a piston piece is movably arranged in each cylinder barrel in a matched mode, and an inflating hole communicated with the air outlet is formed in the other side of each cylinder barrel in a penetrating mode; and the inflating driving device is installed between the two supporting parts, the two output ends of the inflating driving device rotationally penetrate through the two supporting parts correspondingly and then are connected with driving parts, one ends of the two driving parts extend in different directions in the radial direction of the rotating path correspondingly to form driving ends in different directions, and the two driving ends are rotationally connected with the two piston parts correspondingly. The utilization rate of the rotation period of the output end of the inflating driving device is increased, and meanwhile the pressure generated by the inflating pump and the inflating efficiency are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of inflator pump, and specifically refers to a portable inflator pump. BACKGROUND

[0002] Outdoor cycling and ball games are popular outdoor sports, and driving is the daily travel mode of people, in the process of the above-mentioned outdoor sports and daily travel, the tire leakage and the ball leakage often occur, which leads to the difficulty in continuing the sports or travel, therefore, the portable inflator pump is the strong backing to ensure the smooth performance of the above-mentioned sports.

[0003] At present, the existing inflator pump generally uses single motor to cooperate with single pump to inflate, in a rotation period of the motor, the single pump can only do work once after rising and pressing down, that is, only half of the stroke in a rotation period of the motor plays a role in driving the inflation work, and the other half does not play a role in driving the inflation work, which leads to low utilization rate of the rotation period of the motor output end, low inflation efficiency, and difficulty in being applicable to large outdoor cycling or ball games, when the daily travel inflator pump inflates, the user waits for a long time for the vehicle tire to be full of air, and the use experience is poor.

[0004] Aiming at the problems existing in the prior art, the utility model provides a portable inflator pump, which can effectively solve the problems existing in the prior art. UTILITY MODEL CONTENTS

[0005] Aiming at the problems existing in the prior art, the utility model provides a portable inflator pump, which can effectively solve the problems existing in the prior art.

[0006] The technical scheme of the utility model is:

[0007] A portable inflator pump, comprising:

[0008] A casing, comprising an air inlet and an air outlet;

[0009] A support seat is arranged in the casing, two spaced apart cylinder barrels are arranged on the support seat, two support parts are arranged on the opposite sides of the two cylinder barrels respectively, one side of the two cylinder barrels is open, a piston piece is movably arranged in the inside of the cylinder barrel, and a pumping hole is arranged on the other side of the cylinder barrel and communicates with the air outlet.

[0010] A pumping driving device is installed between the two support parts, and two output ends of the pumping driving device are rotatably connected with driving pieces after penetrating through the two support parts, one end of the two driving pieces respectively extends in different directions along the rotation path to form driving ends in different directions, and the two driving ends are rotatably connected with the two piston pieces respectively; the pumping driving device drives the two driving pieces to rotate in the same direction, so as to drive the two piston pieces to move out of synchronization.

[0011] Further, two support parts are arranged on the top of the support base and form a pumping area between the top of the support base and the far side, two cylinder barrels are arranged at the bottom of the pumping area and open at the top, the driving member and the piston member are located in the corresponding pumping area, the lower part of the two support parts forms a mounting area at the bottom of the pumping driving device, the mounting area is provided with a lighting lamp, and the side wall of the machine shell is provided with a through hole corresponding to the lighting lamp.

[0012] Further, the two driving ends are oppositely arranged, the piston member comprises a piston part adapted and swung up and down to be arranged in the corresponding cylinder barrel, and a linkage part arranged at the top of the piston part and extending upward to rotate and connect the corresponding driving end; the pumping driving device drives the two driving members to rotate in the same direction, so as to drive the two piston members to swing and lift in opposite directions.

[0013] Further, the top of the support base is provided with a mounting part corresponding to the mounting area, the mounting part is recessed to form a detection groove, the top of the detection groove is detachably and sealingly provided with a cover plate, the mounting area comprises a heat dissipation seat connected to the mounting part, a fan blade arranged in the heat dissipation seat and driven to rotate by a heat dissipation driving device, the lighting lamp is arranged on the front side of the heat dissipation seat, the side wall of the machine shell is provided with a heat dissipation opening corresponding to the mounting area, the inner part of the support base is divided into two air cavities which respectively communicate with the pumping holes, the proximal ends of the two air cavities respectively extend upward to form air passages which communicate with the bottom of the detection groove, the detection groove is provided with an air temperature sensing device for detecting air temperature and an air pressure sensing device for detecting air pressure, the heat dissipation seat is provided with a temperature sensing device for detecting the working temperature of the lighting lamp, and one air cavity communicates with the air outlet.

[0014] Further, the two air passages are symmetrically and obliquely arranged and gradually decrease in distance from bottom to top, the bottom of one air cavity is provided with a pumping interface which protrudes inward and is used for communicating with the air outlet, and the lower ends of the two pumping holes are each provided with a one-way sealing spring plate for downward air exhaust.

[0015] Further, it further comprises a power supply device for power supply and arranged on the top of the two support bases, and a control panel for control and arranged on the top of the power supply device, the control panel is electrically connected with the power supply device, the pumping driving device, the heat dissipation driving device, the temperature sensing device, the air pressure sensing device and the lighting lamp, the top of the machine shell is provided with a charging interface connected with the power supply device, a control button connected with the control panel, and a display screen connected with the control panel and used for display.

[0016] Further, the shell comprises an inner shell and an outer shell sleeved outside the inner shell, the through hole comprises an inner hole and an outer hole penetrating the side wall of the inner shell and the outer shell respectively, the illumination lamp is provided with an abutting portion protruding from the outer wall of the one end of the heat dissipation seat and having a diameter greater than the inner hole and abutting against the inner side of the inner hole, the front end and the rear end of the support seat and the power supply device are arranged with a gap between the front inner wall and the rear inner wall of the inner shell, and the bottom of the support seat is outwardly protruding and detachably arranged between the bottom end of the inner shell and the bottom end of the outer shell.

[0017] Further, the number of the air inlets is several and is distributed on the left side and the right side of the outer shell and the inner shell, the air outlet is arranged through the bottom of the inner shell and the outer shell and corresponds to the inflation interface, the number of the heat dissipation openings is several and is distributed on the rear part of the outer shell and the inner shell, and the air inlets of the outer shell and the air inlets of the inner shell and the heat dissipation openings of the outer shell and the heat dissipation openings of the inner shell are all sealed by waterproof pads.

[0018] Therefore, the utility model provides the following effects and / or advantages:

[0019] 1. The two driving members are driven to rotate in the same direction by the inflation driving device to drive the two piston members to inflate at different times, specifically, in the rotation stroke of the two driving members driven by the inflation driving device, the two piston members can be pressed and inflated into the inflation hole of the cylinder in turn, and at least one piston member completes a complete inflation stroke, so that in the rotation stroke of one cycle driven by the inflation driving device, more than half of the stroke is used to drive the inflation work, the utilization rate of the rotation cycle of the output end of the inflation driving device is improved, the pressure and the inflation efficiency of the inflation pump are improved, the inflation pump can be not only applied to large outdoor cycling or ball games, but also used for inflating the tire when the user travels by vehicle, the waiting time of the user for the tire to be fully inflated is reduced, and the use experience is improved.

[0020] 2. The inflation area is distributed on the left and right sides, and the inflation driving device is supported by the two support parts, the installation area at the bottom of the inflation driving device is formed between the lower parts of the two support parts, and the illumination lamp is installed in the installation area, the illumination and flash light rescue functions of the inflation pump are realized by the illumination lamp, the functionality of the inflation pump is improved, the compactness and rationality of the internal structure distribution of the inflation pump are improved, the overall space occupied by the internal structure of the inflation pump is reduced, the overall volume of the inflation pump is reduced, and the portability of the inflation pump is improved.

[0021] 3、Two driving ends are oppositely arranged, the inflation driving device drives the two driving members to rotate in the same direction to drive the two piston members to swing and lift in the opposite directions. Therefore, under the premise of avoiding the resistance caused by the inflation of the two piston members, in one rotation period of the two output ends of the inflation driving device, one half of the stroke is used to drive one piston member to swing and lift for inflation, and the other half of the stroke is used to drive the other piston member to swing and lift for inflation, so that the rotation period of the output end of the inflation driving device is fully utilized, and the inflation efficiency of the inflation pump is further improved.

[0022] 4、Through the arrangement of the installation area, the heat dissipation seat, the heat dissipation driving device, the fan blade and the illuminating lamp can be installed, so that the working temperature of the illuminating lamp can be passively dissipated only through the heat dissipation seat, and the control panel can control the start of the heat dissipation driving device after the temperature sensing device detects that the working temperature of the illuminating lamp is too high, so as to control the fan blade to start to actively dissipate the heat caused by the working of the illuminating lamp, and the overall volume of the inflation pump is not increased. The detection groove is arranged between the two gas cavities and the installation area, and the two gas channels are additionally arranged, so that the detection groove can have temperature detection function and air pressure detection function at the same time. Specifically, the temperature sensing device can detect the temperature of the gas flowing between the two gas channels at the bottom of the detection groove, and the air pressure sensing device can detect the air pressure output by the inflation pump through the gas flowing between the two gas channels at the bottom of the detection groove. The temperature and air pressure of the output gas of the inflation pump can be monitored to control the output power of the inflation pump, improve the functionality of the detection groove, and simplify the detection structure to the detection groove and the sensing device arranged in the detection groove, and improve the layout rationality and compactness of the internal structure of the inflation pump.

[0023] It should be understood that the above summary and the following detailed description of the present application are exemplary and explanatory, and are intended to provide further explanation of the application as claimed. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of a portable inflation pump.

[0025] Figure 2 It is Figure 1 It is a structural schematic diagram after removing the shell.

[0026] Figure 3 It is an exploded structural schematic diagram of the shell.

[0027] Figure 4 It is a sectional structural schematic diagram of a portable inflation pump.

[0028] Figure 5 It is Figure 2 It is a rear structural schematic diagram after removing the power supply device and the control panel.

[0029] Figure 6 It isFigure 5 A sectional structure schematic view.

[0030] Figure 7 A Figure 5 A structure schematic view of the support seat, driving member and piston member.

[0031] Figure 8 A Figure 5 A structure schematic view of the heat dissipation seat, fan blade and heat dissipation driving device. DETAILED DESCRIPTION

[0032] In order to facilitate the understanding of those skilled in the art, the structure of the utility model will be further described in detail in combination with the drawings:

[0033] Referring to Figures 1-8 A portable inflator, comprising:

[0034] A casing 1 comprising an air inlet 11 and an air outlet 12;

[0035] A support seat 2 is arranged in the casing 1, and two spaced-apart cylinder barrels 21 and two support portions 22 respectively arranged on opposite sides of the cylinder barrels 21 are arranged on the support seat 2. One side of the cylinder barrels 21 is open, and a piston member 3 is movably arranged in the interior, and a pumping hole 211 penetrating through the other side of the cylinder barrels 21 is arranged and is communicated with the air outlet 12. In order to improve safety, temperature sensors for detecting the working temperature of the cylinder barrels 21 are respectively arranged on the support portions 22.

[0036] An inflating driving device 4 is mounted between the two support portions 22, and two output ends of the inflating driving device 4 are rotatably penetrated through the two support portions 22 and are connected with driving members 41. Specifically, the inflating driving device 4 is a double-output-shaft brushless outer rotor motor, one end of each of the driving members 41 extends radially along a rotating path in different directions to form different driving ends 411, and the two driving ends 411 are rotatably connected with the two piston members 3. The inflating driving device 4 drives the two driving members 41 to rotate in the same direction to drive the two piston members 3 to move out of synchronization.

[0037] Specifically, in the stroke of one rotation of the inflating driving device 4 driving the two driving members 41, the two piston members 3 can press and inflate the pumping hole 211 of the cylinder barrel 21 in turn, and at least one piston member 3 completes a complete pumping stroke, so that the stroke of more than half of one cycle of rotation of the inflating driving device 4 can drive the pumping work, the utilization rate of the driving output of the inflating driving device 4 is improved, the pressure and the inflating efficiency of the inflator are improved, the inflator can not only be applied to large outdoor cycling or ball games, but also can reduce the waiting time of the user when the inflator is used to inflate the tire in daily vehicle travel, and improve the use experience.

[0038] In order to improve the compactness of the internal structure of the inflator pump, reduce the overall volume and improve portability, the two support parts 22 are arranged at the top of the support base 2 and form an inflation area 23 between the top of the support base 2 and the distal side. The two cylinder barrels 21 are arranged at the bottom of the inflation area 23 and open at the top side. The drive member 41 and the piston member 3 are located in the corresponding inflation area 23. The lower part of the two support parts 22 forms a mounting area 24 at the bottom of the inflation drive device 4. The mounting area 24 is provided with a lighting lamp 7. Specifically, the lighting lamp 7 is an RGBW four-color lighting lamp. The side wall of the casing 1 is provided with a through hole corresponding to the lighting lamp 7. Thus, by distributing the inflation area 23 left and right and supporting the inflation drive device 4 in the middle through the two support parts 22, the lower part of the two support parts 22 forms the mounting area 24 at the bottom of the inflation drive device 4 to install the lighting lamp 7. The lighting lamp 7 realizes the lighting and flash rescue functions of the inflator pump. The functionality of the inflator pump is improved, the compactness and rationality of the internal structure distribution of the inflator pump are improved, the overall space occupied by the internal structure of the inflator pump is reduced, and the overall volume of the inflator pump is reduced, thereby improving the portability.

[0039] In order to further improve the utilization rate of the rotation period of the output end of the inflation drive device 4, the two drive ends 411 are arranged in opposite directions. The piston member 3 includes a piston part 31 adapted and oscillating up and down arranged in the corresponding cylinder barrel 21, and a linkage part 32 arranged at the top of the piston part 31 and extending upward to rotate and connect the corresponding drive end 411. The inflation drive device 4 drives the two drive members 41 to rotate in the same direction to drive the two piston members 3 to oscillate and lift in opposite directions. Thus, under the premise of avoiding the resistance caused by mutual inflation of the two piston members 3, one rotation period of the two output ends of the inflation drive device 4, half of the stroke plays a role in driving one piston member 3 to oscillate and descend for inflation, and the other half of the stroke plays a role in driving another piston member 3 to oscillate and descend for inflation. Thus, the rotation period of the output end of the inflation drive device 4 is fully utilized, and the inflation efficiency of the inflator pump is further improved.

[0040] In order to monitor the temperature and air pressure of the inflator pump under the premise of improving the inflation efficiency of the inflator pump, the top of the support base 2 is provided with a mounting portion 25 corresponding to the mounting area 24, the mounting portion 25 is recessed and provided with a detection groove 251, the top of the detection groove 251 is detachably and sealingly provided with a cover plate 252, the mounting area 24 includes a heat dissipation seat 241 connected to the mounting portion 25, a fan blade 242 driven to rotate in the heat dissipation seat 241 by a heat dissipation driving device 243, specifically, the heat dissipation driving device 243 is a small motor, the illuminating lamp 7 is arranged on the front side of the heat dissipation seat 241, the side wall of the casing 1 is provided with a heat dissipation opening 18 corresponding to the mounting area 24, the inner part of the support base 2 is divided into two air cavities 26 respectively communicating with the inflation holes 211, the proximal ends of the two air cavities 26 respectively extend upward to form air passages 27 communicating with the groove bottom of the detection groove 251, the detection groove 251 is provided with a gas temperature sensing device for detecting the gas temperature and a gas pressure sensing device for detecting the gas pressure, specifically, the temperature sensing device and the gas pressure sensing device are respectively a diffused silicon pressure sensor chip and a thermistor, the heat dissipation seat 241 is provided with a temperature sensing device for detecting the working temperature of the illuminating lamp 7, specifically, the heat dissipation seat 241 is made of aluminum for conducting the working temperature of the illuminating lamp 7 to the temperature sensing device, the temperature sensing device is a temperature sensor, one of the air cavities 26 communicates with the air outlet 12. Thus, through the arrangement of the mounting area 24, the heat dissipation seat 241, the heat dissipation driving device 243, the fan blade 242 and the illuminating lamp 7 can be installed, so that the working temperature of the illuminating lamp 7 can be passively cooled only by the heat dissipation seat 241, the temperature sensing device can control the start of the heat dissipation driving device 243 when the working temperature of the illuminating lamp 7 is too high, so as to control the fan blade 242 to start actively cooling the heat generated by the illuminating lamp 7, and the overall volume of the inflator pump is not increased, the detection groove 251 is arranged between the two air cavities 26 and the mounting area 24, and the two air passages 27 are added, so that the detection groove 251 can simultaneously have temperature detection function and air pressure detection function, specifically, the temperature sensing device can detect the temperature of the gas flowing between the two air passages 27 at the bottom of the detection groove 251, the gas pressure sensing device can detect the air pressure output by the inflator pump through the gas flowing between the two air passages 27 at the bottom of the detection groove 251, so as to monitor the temperature and air pressure of the gas output by the inflator pump, control the output power of the inflator pump, improve the functionality of the detection groove 251, simplify the detection structure to the detection groove 251 and the sensing devices arranged therein, and improve the layout rationality and compactness of the internal structure of the inflator pump.

[0041] In order to improve the stability of the output air pressure of the inflator, the two air passages 27 are symmetrically inclined and gradually decrease in distance from bottom to top, and the bottom of one air cavity 26 is provided with an inflating interface 28 protruding inward and used for communicating with the air outlet 12, and the lower end of each inflating hole 211 is provided with a one-way sealing spring 212 used for downward air discharge. Therefore, through the arrangement of the one-way sealing spring 212, the influence of external gas on the cylinder 21 and thus the output air pressure of the inflator can be avoided, and at the same time, through the arrangement of the two inclined air passages 27, the air output from the other air cavity 26 can be guided to the detection groove 251 and then to the air cavity 26 for output, and the near end of the two air passages 27 is arranged to be raised to ensure that the air pressure detected by the air pressure detection device in the detection groove 251 is the highest air pressure, thereby improving the monitoring stability.

[0042] Specifically, the inflator further comprises a power supply device 5 mounted on the top of the two support seats 2 for power supply, and a control panel 6 mounted on the top of the power supply device 5 for control, the control panel 6 is electrically connected with the power supply device 5, the inflating driving device 4, the heat dissipation driving device 243, the temperature sensing device, the air pressure sensing device, and the illuminating lamp 7, the top of the casing 1 is provided with a charging interface 15 connected with the power supply device 5, a control button 16 connected with the control panel 6, and a display screen 17 connected with the control panel 6 and used for display, specifically, the control panel 6 is a circuit board, the charging interface 15 is used for charging the battery device after connecting with the power supply, and the display screen 17 is used for displaying the detected values such as temperature and air pressure.

[0043] In order to improve the functionality of the inflator, the casing 1 comprises an inner shell 13 and an outer shell 14 sleeved inside and outside, the through hole comprises an inner hole 131 and an outer hole 141 respectively penetrating the side walls of the inner shell 13 and the outer shell 14, the end of the illuminating lamp 7 away from the heat dissipation seat 241 is provided with an abutting portion 71 protruding outward and having a diameter greater than the inner hole 131 and abutting on the inner side of the inner hole 131, the front and rear ends of the support seat 2 and the power supply device 5 are arranged with gaps from the front and rear inner walls of the inner shell 13, and the bottom of the support seat 2 is outwardly protruding and arranged between the bottom end of the inner shell 13 and the bottom end of the outer shell 14 and can be detachably arranged therebetween, specifically, the bottom of the support seat 2 and the bottom end of the inner shell 13 are screw-connected. Through the arrangement of the illuminating lamp 7, the illumination and flash light for help functions of the inflator are realized, and at the same time, through the arrangement of the front and rear ends of the support seat 2 and the power supply device 5 with gaps from the front and rear inner walls of the inner shell 13, the installation convenience of the illuminating lamp 7 is improved, specifically, after the outer shell 14 is sleeved outside the support seat 2 and the inner hole 131 corresponds to the illuminating lamp 7, the support seat 2 is moved backward to press the illuminating lamp 7 in the inner hole 131, and then the bottom of the support seat 2 and the bottom end of the inner shell 13 are screw-locked.

[0044] In order to improve the waterproof effect of the inflator, the number of the air inlets 11 is several and is distributed through the left and right sides of the outer shell 14 and the inner shell 13, the air outlet 12 is provided through the bottom of the inner shell 13 and the outer shell 14 and corresponds to the inflating interface 28, the number of the heat dissipation openings 18 is several and is distributed through the rear of the outer shell 14 and the inner shell 13, the air inlets 11 of the outer shell 14 and the air inlets 11 of the inner shell 13 and the heat dissipation openings 18 of the outer shell 14 and the heat dissipation openings 18 of the inner shell 13 are all provided with waterproof pads 8, and specifically, the waterproof pads 8 are made of E-PTFE composite film and are IP5X-IP6X waterproof and breathable materials.

[0045] The preferred embodiments of the utility model are described above only and are not used for limiting the utility model, and the utility model can have various changes and changes for the person skilled in the art. Any modification, equivalent replacement, improvement and the like within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A portable air pump characterized by, The utility model relates to a kind of inflatable device, including: Casing (1), including air inlet (11) and air outlet (12); Support seat (2), be located in the casing (1), the support seat (2) is equipped with two interval settings cylinder (21), two respectively set in two the support part (22) of cylinder (21) opposite side, the side opening of two the cylinder (21) and inside mobilely equipped with piston piece (3), the other side is equipped with the hole (211) of punching gas hole (211) that is connected with the air outlet (12); Pumping drive device (4), it is installed between two the support part (22) and two output ends are respectively rotated and connected with driving piece (41) after being rotated and being penetrated two the support part (22), one end of two the driving piece (41) respectively extends along rotating path radially towards different direction and forms different driving end (411) towards, two the driving end (411) is respectively rotated and connected two the piston piece (3);The pumping drive device (4) drives two the driving piece (41) same direction rotation, to drive two the piston piece (3) different step activity pumping.

2. A portable pump as claimed in claim 1 wherein, Two the support part (22) is equipped at the top of the support seat (2) and is formed pumping area (23) between top side of the support seat (2) and far side, two the cylinder (21) is respectively equipped at the bottom of the pumping area (23) and top side opening, the driving piece (41) and piston piece (3) are located in corresponding the pumping area (23), the lower part between two the support part (22) forms installation area (24) located at the bottom of the pumping drive device (4), lighting lamp (7) is equipped in the installation area (24), the side wall of the casing (1) is penetrated and is equipped with the through hole corresponding with the lighting lamp (7).

3. A portable pump as claimed in claim 1 wherein, The direction of two the driving end (411) is opposite, and the piston piece (3) includes piston part (31) that is fitted and swings up and down and is located in corresponding the cylinder (21), linkage part (32) is equipped at the top of the piston part (31) and is connected with corresponding driving end (411) upward and extends rotationally;The pumping drive device (4) drives two the driving piece (41) same direction rotation, to drive two the piston piece (3) reverse swing up and down.

4. A portable pump as claimed in claim 2 wherein, The top of the support seat (2) is provided with a mounting portion (25) corresponding to the mounting area (24), the mounting portion (25) is recessed and provided with a detection groove (251), the top of the detection groove (251) is detachably and sealingly provided with a cover plate (252), the mounting area (24) comprises a heat dissipation seat (241) connected with the mounting portion (25), a fan blade (242) driven to rotate in the heat dissipation seat (241) by a heat dissipation driving device (243), the illuminating lamp (7) is arranged on the front side of the heat dissipation seat (241), the side wall of the shell (1) is provided with a heat dissipation opening (18) corresponding to the mounting area (24), the inner part of the support seat (2) is divided into two air cavities (26) respectively communicating with the inflating holes (211), the proximal ends of the two air cavities (26) respectively extend upward to form air channels (27) communicating with the groove bottom of the detection groove (251), the detection groove (251) is provided with an air temperature sensing device for detecting air temperature and an air pressure sensing device for detecting air pressure, the heat dissipation seat (241) is provided with a temperature sensing device for detecting the working temperature of the illuminating lamp (7), and one air cavity (26) communicates with the air outlet (12).

5. A portable pump as claimed in claim 4 wherein, The two air channels (27) are symmetrically and obliquely arranged and gradually decrease in distance from bottom to top, and the bottom of one air cavity (26) is provided with an inflating interface (28) protruding inward and communicating with the air outlet (12), and the lower end of each inflating hole (211) is provided with a one-way sealing elastic sheet (212) for downward air exhaust.

6. A portable pump as claimed in claim 4 wherein, Further comprising a power supply device (5) for power supply and arranged on the top of the two support seats (2), and a control panel (6) for control and arranged on the top of the power supply device (5), the control panel (6) is electrically connected with the power supply device (5), the inflating driving device (4), the heat dissipation driving device (243), the temperature sensing device, the air pressure sensing device, the illuminating lamp (7), the top of the shell (1) is provided with a charging interface (15) connected with the power supply device (5), a control button (16) connected with the control panel (6), and a display screen (17) connected with the control panel (6) and used for display.

7. A portable pump as claimed in claim 5 wherein, The shell (1) comprises an inner shell (13) and an outer shell (14) sleeved thereon, the through hole comprises an inner hole (131) and an outer hole (141) penetrating the side wall of the inner shell (13) and the outer shell (14) respectively, the outer wall of one end of the illuminating lamp (7) away from the heat dissipation seat (241) is protrudingly provided with an abutting portion (71) with a diameter larger than the inner hole (131) and abutting to the inner side of the inner hole (131), the front and rear ends of the support seat (2) and the power supply device (5) are arranged with gaps from the front and rear inner walls of the inner shell (13), and the bottom of the support seat (2) is outwardly protrudingly arranged and detachably arranged between the bottom end of the inner shell (13) and the bottom end of the outer shell (14).

8. A portable pump as claimed in claim 7 wherein, The number of air inlets (11) is several and is distributed on the left and right sides of the outer shell (14) and the inner shell (13), the air outlet (12) is provided on the bottom of the inner shell (13) and the outer shell (14) and corresponds to the inflation interface (28), the number of heat dissipation openings (18) is several and is distributed on the rear of the outer shell (14) and the inner shell (13), and the air inlets (11) of the outer shell (14) and the air inlets (11) of the inner shell (13) are sealed by waterproof pads (8), and the heat dissipation openings (18) of the outer shell (14) and the heat dissipation openings (18) of the inner shell (13) are sealed by waterproof pads (8).

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