Electric inflating pump

Abstract

The utility model discloses an electric inflating pump, and relates to the technical field of inflating pumps, and the electric inflating pump comprises a shell, a plurality of baffles, an air pump, a cooling fan and a buffer part. The shell is provided with a containing cavity, an air inlet and an air outlet, and the air inlet and the air outlet are formed in a spaced mode and communicate with the containing cavity; the multiple baffles are all arranged in the containing cavity, at least part of the baffles define a first air guide groove in the containing cavity, the air inlet communicates with one end of the first air guide groove, and the air outlet communicates with the other end of the first air guide groove; the air pump is installed in the containing cavity, and at least part of the air pump is installed in the first air guide groove. The cooling fan is connected with the air pump, and the air pump can drive the cooling fan to rotate so as to drive airflow to flow through the first air guide groove from the air inlet and flow out from the air outlet; the buffering piece is installed between the air pump and the containing cavity. According to the electric inflating pump, the operation temperature of the electric inflating pump can be reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a pump technology field, specifically, an electric pump. BACKGROUND

[0002] With the wide application of inflatable products, the performance and efficiency of the pump as an important tool for inflating various inflatable products are paid more and more attention. The traditional electric pump generates a large amount of heat during operation, especially in the motor and cylinder cup (i.e. the part responsible for compressing air inside) area. If the heat is not dissipated in time, it will cause the temperature of the equipment to rise, affecting the normal operation of the equipment. High temperature will also accelerate the aging of the components and shorten the service life of the equipment. SUMMARY

[0003] Therefore, the purpose of the present application is to overcome the shortcomings of the prior art and provide an electric pump that can reduce the operating temperature of the electric pump.

[0004] To achieve the above-mentioned purpose, the technical scheme adopted by the present application is as follows:

[0005] The present application provides an electric pump, comprising: a housing provided with a receiving cavity, an air inlet and an air outlet, the air inlet and the air outlet are spaced apart, and the air inlet and the air outlet are in communication with the receiving cavity; a plurality of baffles, each of which is arranged in the receiving cavity, at least part of the baffles surrounds a first air guide groove in the receiving cavity, the air inlet is in communication with one end of the first air guide groove, and the air outlet is in communication with the other end of the first air guide groove; a pump installed in the receiving cavity, and at least part of the pump is installed in the first air guide groove; a cooling fan connected to the pump, the pump can drive the cooling fan to rotate to drive the airflow to flow through the first air guide groove from the air inlet and out of the air outlet; a buffer installed between the pump and the receiving cavity.

[0006] In an optional embodiment, the pump includes a high-pressure pump and a low-pressure pump, at least part of the baffles surrounds a second air guide groove in the receiving cavity, the second air guide groove is in communication with the first air guide groove, the low-pressure pump is at least partially arranged in the second air guide groove, the high-pressure pump is arranged in the first air guide groove, and the cooling fan is connected to the high-pressure pump.

[0007] In an optional embodiment, the plurality of baffles comprises a first baffle, a second baffle, a third baffle and a fourth baffle, the first baffle, the second baffle, the third baffle and the fourth baffle are all connected to the cavity wall of the accommodating cavity, the shell has a first side wall and a second side wall arranged adjacently, the first baffle, the second baffle, the first side wall, the third baffle and the second side wall are connected in sequence to define the first air guide groove, the fourth baffle is connected with the first baffle and surrounds the second air guide groove together with the first baffle.

[0008] In an optional embodiment, the air pump further comprises an air inlet member, an air outlet member and a connecting member, the air inlet member is provided with an air inlet channel, the air outlet member is provided with an air outlet channel, the connecting member is provided with a connecting channel, two ends of the connecting channel are in communication with the air inlet channel and the air outlet channel respectively, the output end of the high-pressure air pump is in communication with the air outlet channel, and the output end of the low-pressure air pump is arranged in the connecting channel.

[0009] In an optional embodiment, the connecting member is further provided with a bearing cavity, the low-pressure air pump is at least partially arranged in the bearing cavity, the bearing cavity is in communication with the second air guide groove, and the air pump further comprises a separation member, the separation member is arranged in the bearing cavity and between the cavity wall of the bearing cavity and the low-pressure air pump to separate a ventilation gap between the cavity wall of the bearing cavity and the low-pressure air pump.

[0010] In an optional embodiment, the air pump further comprises a first one-way valve, and the first one-way valve is arranged in the connecting channel.

[0011] In an optional embodiment, the connecting member has a plurality of first protrusions arranged at intervals at the connection position of the connecting member and the first one-way valve, the first one-way valve has at least one second protrusion, any one of the second protrusions is located between any two adjacent first protrusions, each first protrusion abuts against the first one-way valve, and each second protrusion abuts against the connecting member.

[0012] In an optional embodiment, the air pump further comprises a second one-way valve, and the second one-way valve is arranged in the air outlet channel and at the output end of the high-pressure air pump.

[0013] In an optional embodiment, the electric air pump further comprises an air pressure sensing assembly, the air outlet member is further provided with an air pressure sensing port, the air pressure sensing port is in communication with the air outlet channel, and the air pressure sensing assembly is arranged at the air pressure sensing port and is used for detecting the air pressure in the air outlet channel.

[0014] In an optional embodiment, the air outlet member has an air outlet part and a connecting part connected with the air outlet part, the air outlet channel and the air pressure sensing port are arranged on the air outlet part, the connecting part is located at the air pressure sensing port and protrudes from the outer surface of the air outlet part, the air pressure sensing assembly comprises an air pressure sensing member and a screwing member connected with the air pressure sensing member, the connecting part is provided with a connecting hole in communication with the air pressure sensing port, the air outlet member is further provided with a plurality of clamping parts, the plurality of clamping parts are arranged on the connecting part in a circumferential direction of the connecting part and protrude from the surface of the connecting part, the air pressure sensing member is at least partially arranged in the connecting hole, and the screwing member rotates around the surface of the connecting part and is clamped and connected with the clamping parts.

[0015] The electric air pump has the following advantages:

[0016] In the electric air pump, the air pump is operated to realize the air pumping function. In this process, the buffer is arranged between the air pump and the accommodating cavity, so that when the air pump is operated, the vibration of the air pump operation can be buffered by the buffer to reduce the noise of the electric air pump. At the same time, since the air pump is at least partially installed in the first air guide groove, and the air pump can drive the cooling fan to rotate to drive the airflow to flow through the first air guide groove from the air inlet and then flow out of the air outlet, when the air pump is operated to pump air, the cooling fan can also be driven to rotate to make the air enter the first air guide groove from the air inlet through the rotation of the cooling fan, so that the air can flow through at least part of the surface of the air pump, and then the air can flow out of the accommodating cavity from the air outlet. In this way, the air flowing on the surface of the air pump can be used to cool the air pump, thereby reducing the operating temperature of the electric air pump. Further, since the first air guide groove is formed by at least part of the baffle, the air entering the accommodating cavity can flow in the first air guide groove, thereby improving the cooling effect of the air pump. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor.

[0018] Figure 1 A perspective view of the shell in the present application is shown Figure 1 ;

[0019] Figure 2 A perspective view of the shell in the present application is shown Figure 2 ;

[0020] Figure 3 A cross-sectional structural schematic diagram of the electric air pump in the present application is shown;

[0021] Figure 4 A cross-sectional structural schematic diagram of the air inlet member, air outlet member, air pressure pump and air pressure sensing assembly in the present application is shown;

[0022] Figure 5 A cross-sectional structural schematic diagram of Figure 4 in A is shown;

[0023] Figure 6 A cross-sectional structural schematic diagram of Figure 4 in B is shown;

[0024] Figure 7 A cross-sectional structural schematic diagram of Figure 4 in C is shown;

[0025] Figure 8 An exploded structural schematic diagram of the air outlet member and air pressure sensing assembly in the present application is shown;

[0026] Figure 9 A cross-sectional structural schematic diagram of the air outlet member, high-pressure air pump and heat dissipation fan in the present application is shown.

[0027] Main element symbol explanation:

[0028] 100 - shell; 110 - containing cavity; 120 - air inlet; 130 - air outlet; 140 - first air guide groove; 150 - second air guide groove; 160 - first side wall; 170 - second side wall;

[0029] 210 - first baffle; 220 - second baffle; 230 - third baffle; 240 - fourth baffle;

[0030] 300 - air pump; 310 - high-pressure air pump; 320 - low-pressure air pump; 330 - air inlet member; 331 - air inlet channel; 340 - air outlet member; 341 - air outlet channel; 342 - air pressure sensing port; 343 - air outlet part; 344 - connecting part; 3441 - connecting hole; 345 - clamping part; 350 - connecting member; 351 - connecting channel; 352 - bearing cavity; 3521 - ventilation gap; 353 - first protrusion; 360 - separation member; 370 - first one-way valve; 371 - second protrusion; 380 - second one-way valve;

[0031] 400 - heat dissipation fan;

[0032] 500 - buffer member;

[0033] 600 - air pressure sensing assembly; 610 - air pressure sensing member; 620 - screwing member. DETAILED DESCRIPTION

[0034] Embodiments of the present application are described below in detail with reference to examples shown in the drawings, wherein the same or similar numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary only, and are merely intended to explain the present application, and are not to be understood as limiting the present application.

[0035] In the description of the present application, it needs to be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the purpose of facilitating the description of the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0036] In addition, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly specified and limited.

[0037] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0038] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0039] Reference Figures 1 to 3As shown, the electric inflator pump related in the embodiments of the present application comprises a shell 100, a plurality of baffles, an air pump 300, a cooling fan 400 and a buffer 500.

[0040] Specifically, the shell 100 is provided with a containing cavity 110, an air inlet 120 and an air outlet 130, the air inlet 120 and the air outlet 130 are arranged at intervals, and the air inlet 120 and the air outlet 130 are both in communication with the containing cavity 110; the plurality of baffles are all arranged in the containing cavity 110, at least part of the baffles enclose a first air guide groove 140 in the containing cavity 110, the air inlet 120 is in communication with one end of the first air guide groove 140, and the air outlet 130 is in communication with the other end of the first air guide groove 140; the air pump 300 is installed in the containing cavity 110, and at least part of the air pump 300 is installed in the first air guide groove 140; the cooling fan 400 is connected with the air pump 300, and the air pump 300 can drive the cooling fan 400 to rotate to drive the airflow to flow through the first air guide groove 140 from the air inlet 120 and out of the air outlet 130; the buffer 500 is installed between the air pump 300 and the containing cavity 110.

[0041] In the electric inflator pump of the present application, the inflating function is realized by the operation of the air pump 300, and in this process, since the buffer 500 is arranged between the air pump 300 and the containing cavity 110, when the air pump 300 operates, the vibration of the operation of the air pump 300 can be buffered by the buffer 500 to reduce the noise of the electric inflator pump, and at the same time, since the air pump 300 is at least partially installed in the first air guide groove 140, and the air pump 300 can drive the cooling fan 400 to rotate to drive the airflow to flow through the first air guide groove 140 from the air inlet 120 and out of the air outlet 130, when the air pump 300 operates to inflate, the cooling fan 400 can also be driven to rotate to make the wind enter the first air guide groove 140 from the air inlet 120 through the rotation of the cooling fan 400, so that the wind can flow through at least part of the surface of the air pump 300, and then the wind flows out of the containing cavity 110 from the air outlet 130, thus the heat dissipation of the air pump 300 can be realized by the wind flowing on the surface of the air pump 300, so as to reduce the operating temperature of the electric inflator pump, and further, since the first air guide groove 140 is formed by at least part of the baffles, thus the wind entering the containing cavity 110 can mostly flow in the first air guide groove 140 to improve the heat dissipation effect of the air pump 300.

[0042] Referring to Figure 4 and Figure 9As shown, the air pump 300 comprises a high-pressure air pump 310 and a low-pressure air pump 320, at least part of the baffles are arranged to surround the second air guide groove 150 in the accommodating cavity 110, the second air guide groove 150 is in communication with the first air guide groove 140, the low-pressure air pump 320 is at least partially arranged in the second air guide groove 150, the high-pressure air pump 310 is arranged in the first air guide groove 140, and the heat dissipation fan 400 is connected with the high-pressure air pump 310.

[0043] In the embodiment, the high-pressure air pump 310 is used to realize the high-pressure pumping function of the electric air pump, and the low-pressure air pump 320 is used to realize the low-pressure pumping function of the electric air pump. Since the high-pressure air pump 310 is arranged in the first air guide groove 140, the high-pressure air pump 310 can be cooled by the air flowing through the first air guide groove 140 to reduce the operating temperature of the high-pressure air pump 310. Since the low-pressure air pump 320 is at least partially arranged in the second air guide groove 150, the low-pressure air pump 320 can be cooled by the air flowing through the second air guide groove 150 to reduce the operating temperature of the low-pressure air pump 320. Since the second air guide groove 150 is in communication with the first air guide groove 140, the air entering the accommodating cavity 110 can flow out of the accommodating cavity 110 through the air outlet 130 to realize the heat exchange circulation of the air pump 300.

[0044] Referring to Figure 2 As shown, the plurality of baffles comprises a first baffle 210, a second baffle 220, a third baffle 230, and a fourth baffle 240, the first baffle 210, the second baffle 220, the third baffle 230, and the fourth baffle 240 are all connected to the cavity wall of the accommodating cavity 110, the shell 100 has a first side wall 160 and a second side wall 170 arranged adjacent to each other, the first baffle 210, the second baffle 220, the first side wall 160, the third baffle 230, and the second side wall 170 are sequentially connected to define the first air guide groove 140, and the fourth baffle 240 is connected with the first baffle 210 and surrounds the second air guide groove 150 with the first baffle 210.

[0045] Specifically, in the embodiment, the first baffle 210 extends along the side of the high-pressure air pump 310, the second baffle 220 is arranged at the end of the high-pressure air pump 310 away from the air outlet 130, the first side wall 160 extends along the other side of the high-pressure air pump 310 and surrounds the high-pressure air pump 310 with the first baffle 210, the third baffle 230 is arranged at the end of the first side wall 160 away from the second baffle 220, and the second side wall 170 extends along the other side of the high-pressure air pump 310 and surrounds the high-pressure air pump 310 with the first baffle 210, so that the first baffle 210, the second baffle 220, the first side wall 160, the third baffle 230, and the second side wall 170 are sequentially connected to form the first air guide groove 140 surrounding the high-pressure air pump 310.

[0046] In this embodiment, the first baffle 210, the second baffle 220, the first sidewall 160, the third baffle 230, and the second sidewall 170 are connected in sequence to define the first air guide groove 140. In this way, the air entering the receiving cavity 110 can be guided by the first baffle 210, the second baffle 220, the first sidewall 160, the third baffle 230, and the second sidewall 170, so that the air can flow through the surface of the high-pressure air pump 310 in the first air guide groove 140, thereby improving the heat dissipation effect on the cylinder and the first drive motor. At the same time, since the fourth baffle 240 is connected to the first baffle 210 and forms the second air guide groove 150 with the first baffle 210, the air entering the second air guide groove 150 can be guided by the first baffle 210 and the fourth baffle 240, so that the air can flow through the surface of the low-pressure air pump 320 in the second air guide groove 150.

[0047] Reference Figure 3 , Figure 4 as well as Figure 9 As shown, the air pump 300 also includes an air inlet 330, an air outlet 340, and a connector 350. The air inlet 330 is provided with an air inlet channel 331, the air outlet 340 is provided with an air outlet channel 341, and the connector 350 is provided with a connecting channel 351. The two ends of the connecting channel 351 are respectively connected to the air inlet channel 331 and the air outlet channel 341. The output end of the high-pressure air pump 310 is connected to the air outlet channel 341, and the output end of the low-pressure air pump 320 is located in the connecting channel 351.

[0048] In this embodiment, when the electric air pump of this application performs low-pressure air pumping, the gas can enter the air inlet 330 through the air inlet channel 331, and then enter the air outlet channel 341 through the connecting channel 351, and then enter the air outlet 340 through the air outlet channel 341, and finally enter the air-pumped component through the air outlet 340, thereby realizing the low-pressure air pumping function of the electric air pump of this application; when the electric air pump of this application performs high-pressure air pumping, the gas can enter the air inlet 330 through the air inlet channel 331, and then enter the air outlet channel 341 through the connecting channel 351, and then enter the high-pressure air pump 310 through the air outlet channel 341. The high-pressure air pump 310 compresses the gas, and the compressed gas then enters the air outlet channel 341, and finally enters the air-pumped component through the air outlet 340, thereby realizing the high-pressure air pumping function of the electric air pump of this application.

[0049] Continue to refer to Figure 5As shown, the connecting piece 350 is further provided with a bearing cavity 352, the low-pressure air pump 320 is at least partially arranged in the bearing cavity 352, the bearing cavity 352 is in communication with the second air guide groove 150, and the air pump 300 further comprises a separation piece 360, which is arranged in the bearing cavity 352 and between the cavity wall of the bearing cavity 352 and the low-pressure air pump 320, so as to separate the ventilation gap 3521 between the cavity wall of the bearing cavity 352 and the low-pressure air pump 320.

[0050] In the embodiment, since the bearing cavity 352 is in communication with the second air guide groove 150, and the separation piece 360 is arranged in the bearing cavity 352 and separates the ventilation gap 3521 between the cavity wall of the bearing cavity 352 and the low-pressure air pump 320, the air in the second air guide groove 150 can enter the bearing cavity 352 and flow through the ventilation gap 3521, so that the air can flow through the surface of the low-pressure air pump 320 everywhere, thereby improving the heat dissipation effect of the low-pressure air pump 320.

[0051] Continuing to refer to Figure 4 As shown, the air pump 300 further comprises a first one-way valve 370, which is arranged in the connecting channel 351.

[0052] In the embodiment, since the first one-way valve 370 is arranged in the connecting channel 351, the flow direction of the gas through the connecting channel 351 can be ensured by the first one-way valve 370, that is, the gas flows from the air inlet channel 331 to the air outlet channel 341, and the backflow of the gas from the air outlet channel 341 to the air inlet channel 331 is avoided, thereby improving the inflation efficiency of the electric inflation pump.

[0053] Referring to Figure 6 As shown, the connecting part of the connecting piece 350 and the first one-way valve 370 is provided with a plurality of first protrusions 353 arranged at intervals, the connecting part of the first one-way valve 370 and the connecting piece 350 is provided with at least one second protrusion 371, any one of the second protrusions 371 is located between any two adjacent first protrusions 353, each first protrusion 353 abuts against the first one-way valve 370, and each second protrusion 371 abuts against the connecting piece 350.

[0054] In the embodiment, since any one of the second protrusions 371 is located between any two adjacent first protrusions 353, each first protrusion 353 abuts against the first one-way valve 370, and each second protrusion 371 abuts against the connecting piece 350, the connection sealing between the first one-way valve 370 and the connecting piece 350 can be improved by the first protrusions 353 and the second protrusions 371, and the backflow of the gas through the connecting part of the first one-way valve 370 and the connecting piece 350 to the air inlet channel 331 is avoided.

[0055] Referring to Figure 9As shown, the inflating assembly 300 further comprises a second one-way valve 380, which is arranged in the outlet passage 341 and at the output end of the high-pressure air pump 310.

[0056] Specifically, referring to Figure 8 As shown, in the present embodiment, the high-pressure air pump 310 is a cylinder, and the high-pressure inflating function is realized by the movement of the piston rod of the cylinder in the cylinder barrel. When the piston rod moves along the axial direction of the cylinder barrel towards the direction away from the outlet passage 341, the cylinder has the air suction function, so that the gas can enter into the cylinder barrel via the inlet passage 331 and the second one-way valve 380. When the piston rod moves along the axial direction of the cylinder barrel towards the direction close to the outlet passage 341, the gas in the cylinder barrel is compressed by the piston rod, and the gas compressed in the cylinder barrel can push open the valve core of the second one-way valve 380, so that the compressed gas enters into the outlet passage 341 via the output end of the cylinder, to realize the high-pressure inflating function.

[0057] In the present embodiment, when the high-pressure inflating is performed, the gas can be sucked into the inlet passage 331, and then enters into the high-pressure air pump 310 via the connecting passage 351, the outlet passage 341 and the one-way valve in sequence. At this time, the gas can be compressed by the high-pressure air pump 310, and at the same time, the valve core of the second one-way valve 380 is pushed open by the compressed gas in the high-pressure air pump 310, so that the compressed gas enters into the outlet passage 341 via the output end of the high-pressure air pump 310, to realize the high-pressure inflating function.

[0058] Referring to Figure 7 and Figure 8 As shown, the electric inflating pump further comprises a gas pressure sensing assembly 600, and the outlet member 340 is further provided with a gas pressure sensing port 342, which is in communication with the outlet passage 341. The gas pressure sensing assembly 600 is arranged at the gas pressure sensing port 342 and is used for detecting the gas pressure in the outlet passage 341.

[0059] In the embodiment, the air pressure in the air outlet channel 341 can be detected by the air pressure sensing assembly 600, so as to realize the start-stop switching between the high-pressure air pump 310 and the low-pressure air pump 320. When the air pressure sensing assembly 600 monitors that the air pressure in the air outlet channel 341 is lower than the preset air pressure, the low-pressure air pump 320 is controlled to operate and the high-pressure air pump 310 is stopped, so as to realize the low-pressure inflation function. When the air pressure sensing assembly 600 monitors that the air pressure in the air outlet channel 341 is lower than the preset air pressure, the low-pressure air pump 320 is controlled to stop and the high-pressure air pump 310 is controlled to operate, so as to realize the high-pressure inflation function. Meanwhile, when the air pressure sensing assembly 600 detects that the air pressure in the air outlet channel 341 reaches the preset inflation air pressure of the inflated object, the high-pressure air pump 310 and the low-pressure air pump 320 are both controlled to stop, so as to stop the inflation of the inflated object, thereby realizing the accurate control of the inflation process of the inflated object.

[0060] With reference to FIGS. 1-3 and 5-7, Figure 7 and Figure 8 As shown in FIGS. 1-3 and 5-7, the air outlet member 340 has an air outlet portion 343 and a connecting portion 344. The air outlet channel 341 and the air pressure sensing port 342 are arranged on the air outlet portion 343. The connecting portion 344 is connected with the air outlet portion 343 and located at the air pressure sensing port 342. The connecting portion 344 protrudes from the outer surface of the air outlet portion 343. The air pressure sensing assembly 600 comprises an air pressure sensing member 610 and a screw member 620. The air pressure sensing member 610 is connected with the screw member 620. The screw member 620 is connected with the connecting portion 344.

[0061] In the embodiment, the air pressure sensing member 610 can be connected at the air pressure sensing port 342 of the air outlet portion 343 through the connection of the connecting portion 344 and the screw member 620, so that the air pressure sensing member 610 can detect the air pressure at the air pressure sensing port 342, thereby realizing the detection function of the air pressure sensing member 610 on the air pressure in the air outlet channel 341.

[0062] With reference to FIGS. 1-3 and 5-7, Figure 7 and Figure 8 As shown in FIGS. 1-3 and 5-7, the connecting portion 344 is provided with a connecting hole 3441. The connecting hole 3441 is in communication with the air pressure sensing port 342. The air outlet member 340 further has a plurality of clamping portions 345. The plurality of clamping portions 345 are arranged on the connecting portion 344 in a circumferential direction and protrude from the surface of the connecting portion 344. The air pressure sensing member 610 is at least partially arranged in the connecting hole 3441. The screw member 620 rotates around the surface of the connecting portion 344 and is clamped and connected with the clamping portions 345.

[0063] In the embodiment, since the connecting hole 3441 communicates with the air pressure sensing port 342, the air pressure sensing piece 610 is at least partially arranged in the connecting hole 3441, thus, when the air pressure sensing piece 610 is connected with the connecting portion 344, the connecting hole 3441 can contact with the air pressure sensing port 342 to realize the detection of the air pressure in the air outlet passage 341. Further, since the connecting piece 350 is screwed on the surface of the connecting portion 344 and is clamped and connected with the clamping portion 345, when the air pressure sensing piece 610 is at least partially arranged in the connecting hole 3441, the screwing piece 620 can be screwed on the surface of the connecting portion 344, and when the screwing piece 620 is screwed to the clamping portion 345, the screwing piece 620 can be clamped and connected with the clamping portion 345, so as to realize the quick connection of the screwing piece 620 with the connecting portion 344, and facilitate the dismounting of the gas sensing assembly from the connecting portion 344.

[0064] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, the different embodiments or examples described in the present specification and the features of the different embodiments or examples can be combined and combined by those skilled in the art without contradiction.

[0065] Although the embodiments of the present application have been shown and described above, it should be understood that the above embodiments are exemplary and should not be construed as limiting the present application, and those skilled in the art can make changes, modifications, replacements and variations to the above embodiments within the scope of the present application.

Claims

1. An electric air pump characterized by comprising: The application relates to a shell, which comprises a containing cavity, an air inlet and an air outlet, the air inlet and the air outlet are arranged at intervals, and the air inlet and the air outlet are communicated with the containing cavity; a plurality of baffles are arranged in the containing cavity, at least part of the baffles surround a first air guide groove in the containing cavity, the air inlet is communicated with one end of the first air guide groove, and the air outlet is communicated with the other end of the first air guide groove; a gas pump is arranged in the containing cavity and at least part of the gas pump is arranged in the first air guide groove; a heat dissipation fan is connected with the gas pump, the gas pump can drive the heat dissipation fan to rotate, so that air flows through the first air guide groove from the air inlet and flows out from the air outlet; a buffer is arranged between the gas pump and the containing cavity. The gas pump comprises a high-pressure gas pump and a low-pressure gas pump, at least part of the baffles surround a second air guide groove in the containing cavity, the second air guide groove is communicated with the first air guide groove, the low-pressure gas pump is arranged in the second air guide groove, the high-pressure gas pump is arranged in the first air guide groove, and the heat dissipation fan is connected with the high-pressure gas pump. The plurality of baffles comprise a first baffle, a second baffle, a third baffle and a fourth baffle, the first baffle, the second baffle, the third baffle and the fourth baffle are connected to the cavity wall of the containing cavity, the shell has a first side wall and a second side wall arranged adjacently, the first baffle, the second baffle, the first side wall, the third baffle and the second side wall are sequentially connected to define the first air guide groove, the fourth baffle is connected with the first baffle and surrounds the second air guide groove with the first baffle. The gas pump further comprises an air inlet part, an air outlet part and a connecting part, the air inlet part is provided with an air inlet channel, the air outlet part is provided with an air outlet channel, the connecting part is provided with a connecting channel, two ends of the connecting channel are communicated with the air inlet channel and the air outlet channel respectively, the output end of the high-pressure gas pump is communicated with the air outlet channel, and the output end of the low-pressure gas pump is arranged in the connecting channel. The connecting part is further provided with a bearing cavity, the low-pressure gas pump is arranged in the bearing cavity at least partially, the bearing cavity is communicated with the second air guide groove, the gas pump further comprises a separation part, the separation part is arranged in the bearing cavity and between the cavity wall of the bearing cavity and the low-pressure gas pump, so as to separate a ventilation gap between the cavity wall of the bearing cavity and the low-pressure gas pump. The gas pump further comprises a first one-way valve, and the first one-way valve is arranged in the connecting channel.

2. The electric bellows pump of claim 1, wherein The connecting part and the first one-way valve are provided with a plurality of spaced first protrusions, the first one-way valve and the connecting part are provided with at least one second protrusion, any one of the second protrusions is located between any two adjacent first protrusions, each first protrusion abuts against the first one-way valve, and each second protrusion abuts against the connecting part.

3. The electric bellows pump of claim 2, wherein The gas pump further comprises a second one-way valve, and the second one-way valve is arranged in the air outlet channel and at the output end of the high-pressure gas pump.

4. The electric bellows pump of claim 2, wherein ​ 5. The electric bellows pump of claim 4, wherein ​ 6. The electric bellows pump of claim 4, wherein ​ 7. The electric bellows pump of claim 6, wherein ​ 8. The electric pump according to claim 4, wherein ​ 9. The electric pump according to claim 4, wherein The electric air pump further comprises an air pressure sensing assembly, the air outlet member is further provided with an air pressure sensing port, the air pressure sensing port is communicated with the air outlet channel, and the air pressure sensing assembly is arranged at the air pressure sensing port and is used for detecting the air pressure in the air outlet channel.

10. The electric bellows pump of claim 9, wherein, The air outlet member has an air outlet part and a connecting part connected with the air outlet part, the air outlet channel and the air pressure sensing port are arranged on the air outlet part, the connecting part is located at the air pressure sensing port and protrudes from the outer surface of the air outlet part, the air pressure sensing assembly comprises an air pressure sensing part and a screwing part connected with the air pressure sensing part, the connecting part is provided with a connecting hole communicated with the air pressure sensing port, the air outlet member further has a plurality of clamping parts, the plurality of clamping parts are arranged on the connecting part in a circumferential direction of the connecting part and protrude from the surface of the connecting part, the air pressure sensing part is at least partially arranged in the connecting hole, and the screwing part rotates around the surface of the connecting part and is clamped and connected with the clamping part.

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