CN219932484U - Knob type air pump for inflating and sucking - Google Patents

Abstract

The utility model relates to a knob type inflation and suction dual-purpose air pump, which comprises a pump body; the pump body comprises a pump shell; the bottom side of the pump shell is provided with a first air port; the air blowing component is arranged in the pump shell, and the bottom side of the air blowing component is provided with an air blowing air inlet and an air blowing air outlet; a reversing assembly is arranged between the air blowing assembly and the first air port; a reversing flow passage is arranged in the reversing component; the pump shell is also provided with a knob component; the knob assembly comprises a knob and a poking piece; the toggle piece is provided with a first toggle part and a second toggle part; the micro switch is matched with the first poking part; the second stirring part is matched with the reversing assembly, and the stirring part is matched with the micro switch and the reversing assembly to realize the functions of air suction and inflation of the pump body. According to the knob type inflation and suction dual-purpose air pump, the knob is used for operation, so that the inflation function and the exhaust function are realized; the whole structure is compact, the operation is simple, the design is reasonable, and the use is convenient.

Description

Knob type air pump for inflating and sucking

Technical Field

The utility model relates to the field of air pumps, in particular to a knob type inflation and suction dual-purpose air pump.

Background

The use of inflatable products is becoming more and more widespread, for example: inflatable beds, inflatable swimming pools, inflatable cushions, and the like. These inflatable products are used by being inflated and also by being deflated for folding and storage. For inflation of inflatable products, a manual air pump is generally adopted for inflation at present, or an electric air pump is utilized for inflation, and the inflation process is generally operated by abutting an air nozzle of the inflatable product through the air pump. For the deflation of the inflatable product, the inflatable product is usually naturally deflated by opening an air tap of the inflatable product.

The air pump is a device for exhausting air from an enclosed space or adding air from the enclosed space, wherein the electric air pump continuously compresses air by electric power to generate air pressure. The existing air pump can also have the functions of inflating and sucking air at the same time; but the structure is relatively complex.

Along with the continuous updating of air pump products, how to design an air pump with simple operation and reasonable action and integration of air inflation and suction becomes the problem to be solved in the present urgent need.

Disclosure of Invention

In order to solve the technical problems, the utility model provides a knob type dual-purpose air pump for inflating and sucking, which is operated by a knob, and realizes an inflating function and an exhausting function by matching a first poking part with a micro switch and matching a second poking part with a reversing block; the whole structure is compact, the operation is simple, the design is reasonable, and the use is convenient.

The technical scheme adopted for solving the technical problems is as follows: a knob type dual-purpose air pump for filling and sucking comprises a pump body; the pump body comprises a pump shell; the bottom side of the pump shell is provided with a first air port; the air blower is arranged in the pump shell, and the bottom side of the air blower is provided with an air blower inlet and an air blower outlet; a reversing assembly is further arranged between the air blowing assembly and the first air port; a reversing flow passage is arranged in the reversing component; the pump shell is also provided with a knob assembly; the knob assembly comprises a knob which is arranged on the top side of the pump shell and only has a rotation degree of freedom, and a toggle piece which is positioned in the pump shell and is linked with the knob; a micro switch is further arranged in the pump shell, and the poking piece is provided with a first poking part and a second poking part; the micro switch is matched with the first stirring part, and the air blast assembly is used for being started when the micro switch is triggered by the first stirring part; the second stirring part is matched with the reversing assembly and is used for enabling the reversing assembly to move, further enabling the reversing flow channel to be switched between the air blowing air inlet and the air blowing air outlet of the air blowing assembly, further enabling the air blowing air inlet of the air blowing assembly to be communicated with the first air inlet to provide an air suction function or enabling the air blowing air outlet of the air blowing assembly to be communicated with the first air inlet to provide an air inflation function.

Further, the toggle piece comprises a rotary disk connected with the knob; a rotary rod is fixed at the bottom side of the rotary disc; a shifting block is arranged at the bottom side of the rotating rod and used as a second shifting part; the bottom side of the rotary disk is also provided with a poking column as a first poking part.

Further, the knob has two working positions in the rotating stroke; when the knob rotates to a first working position, the first toggle part triggers the micro switch, the reversing flow passage of the reversing assembly is communicated between the air blowing air outlet and the first air inlet, and the pump body provides an air charging function; when the knob rotates to a second working position, the first stirring part triggers the micro switch, the second stirring part is matched with the reversing assembly, the reversing flow passage of the reversing assembly is communicated between the air blowing inlet and the first air port, and the pump body provides an air suction function.

Further, the knob also has an initial position in the rotating stroke; when the knob rotates to an initial position, the first stirring part does not trigger the micro switch; a first reset spring is arranged between the rotating disc and the pump shell; the first return spring is used for keeping the knob assembly at an initial position.

Further, the reversing assembly comprises a reversing block; the reversing flow passage penetrates through the reversing block up and down; the upper opening of the reversing flow channel is the same as the blast air inlet or the blast air outlet in size; the lower port of the reversing flow passage always corresponds to the first air port in the translation stroke of the reversing block.

Further, a pressed platform is arranged at one end of the reversing block matched with the second stirring part, and a second reset spring is further arranged between one end of the reversing block far away from the second stirring part and the pump shell; the translation stroke of the reversing block is provided with a first position communicated between the air blowing outlet and the first air port and a second position communicated between the air blowing inlet and the first air port; the second stirring part is used for stirring the reversing block to a second position, and the second reset spring is used for resetting the reversing block to the first position; or the second stirring part is used for stirring the reversing block to the first position, and the second reset spring is used for resetting the reversing block to the second position.

Further, the air blowing component comprises an air blowing shell, an impeller arranged in the air blowing shell, an air blowing motor used for driving the impeller, and an air blowing runner arranged in the air blowing shell, wherein the air blowing runner forms the air blowing air inlet and the air blowing air outlet at the bottom side of the air blowing shell; the air blowing inlet and the air blowing outlet are positioned on the same plane, and the air blowing inlet and the air blowing outlet are used for enabling the reversing flow passage of the reversing block to be in butt joint with the air blowing inlet or the air blowing outlet when the reversing block translates.

Further, a circuit board is arranged in the pump shell; the circuit board is electrically connected with the micro switch and the air blast assembly; the circuit board is powered by an internal battery or an external power supply.

Further, the air pump also comprises a mounting seat; the mounting seat is internally provided with a containing cavity; the pump body is arranged in the accommodating cavity; the bottom side of the mounting seat is provided with a second air port at a position corresponding to the first air port of the pump body; the mounting seat is arranged on the inflatable product, and the second air port is communicated with the air cavity of the inflatable product.

Further, the second air port is provided with a one-way valve assembly; the reversing block is also provided with a third poking part; the air blowing component is used for pushing the one-way valve component open after air passes through the air blowing air outlet and the reversing flow channel when the reversing flow channel of the reversing block is in butt joint with the air blowing air outlet, and the air enters an air cavity of an inflatable product to achieve inflation of the inflatable product; the air blast assembly is also used for pushing the one-way valve assembly open by the third stirring part of the reversing block when the reversing flow passage of the reversing block is in butt joint with the air blast air inlet, so that air enters the air blast air inlet from the air cavity of the inflatable product against the one-way valve assembly, and the air of the inflatable product is exhausted.

The utility model has the beneficial effects that: according to the knob type air pump for inflating and sucking, the knob is utilized for operation, the first stirring part is matched with the micro switch, and the second stirring part is matched with the reversing block, so that the inflating function and the exhausting function are realized; the air pump is also provided with a mounting seat which is mounted with the inflatable product, so that the pump body can be mounted on the inflatable product, and the inflatable product is inflated and exhausted by utilizing the cooperation of the reversing block and the one-way valve assembly; the whole structure is compact, the operation is simple, the design is reasonable, and the use is convenient.

Drawings

Fig. 1 is a schematic perspective view of a knob type dual-purpose air pump for inflation and suction according to a first embodiment;

FIG. 2 is a schematic perspective view of a knob type dual-purpose air pump according to the first embodiment;

FIG. 3 is an exploded view of a knob type dual-purpose air pump for inflating and sucking according to the first embodiment;

fig. 4 is a schematic perspective view of a blower assembly of a knob type dual-purpose air pump according to the first embodiment;

fig. 5 is a schematic perspective view of a reversing block of a knob type dual-purpose air pump for inflating and sucking according to the first embodiment;

fig. 6 is a schematic perspective view of a toggle member of a knob type dual-purpose air pump for inflating and sucking according to the first embodiment;

fig. 7 is a perspective view of an upper cover of a knob type dual-purpose air pump for inflating and sucking according to the first embodiment;

FIG. 8 is a schematic top view of a knob type dual-purpose air pump for inflating and sucking according to the first embodiment;

FIG. 9 is a schematic cross-sectional view of A-A of FIG. 8;

fig. 10 is a schematic top view showing an inflation state of a knob type dual-purpose inflation and suction air pump according to the first embodiment;

FIG. 11 is a schematic cross-sectional view of B-B of FIG. 10;

fig. 12 is a schematic top view showing the suction state of a knob type dual-purpose air pump for inflation and suction according to the first embodiment;

FIG. 13 is a schematic cross-sectional view of C-C of FIG. 12;

fig. 14 is a schematic perspective view of a knob type dual-purpose air pump for inflation and suction according to the second embodiment;

fig. 15 is an exploded view of a knob type dual-purpose air pump for inflation and suction according to the second embodiment;

FIG. 16 is a schematic top view of a knob type dual-purpose air pump for inflating and sucking according to the second embodiment;

FIG. 17 is a schematic cross-sectional view of D-D of FIG. 16;

fig. 18 is a schematic diagram showing the internal structure of a knob type dual-purpose inflation pump according to the second embodiment;

fig. 19 is a schematic diagram showing the internal structure of a knob type dual-purpose air pump for air inflation and suction in the second embodiment;

the device comprises a pump body, a mounting seat, a 3-one-way valve assembly, a pump shell, a knob assembly, a 13-air blowing assembly, a 14-reversing assembly, a 15-micro switch, a 16-circuit board, a 17-built-in battery, a 111-lower shell, a 112-upper cover, a 1111-first air port, a 1121-connecting column, a 121-knob, a 122-stirring piece, a 1221-rotating disk, a 1222-rotating rod, a 1223-second stirring part, a 1224-first stirring part, a 1225-first return spring, a 131-air blowing shell, a 132-impeller, a 133-air blowing motor, a 134-air blowing air inlet, a 135-air blowing air outlet, a 141-reversing block, a 142-second return spring, a 143-spring seat, a 1411-reversing flow passage, a 1412-pressed platform, a 1413-third stirring part, a 21-accommodating cavity, a 22-second air port and a 23-net cover.

Detailed Description

The present utility model will be further described in detail with reference to the drawings and examples, which are only for the purpose of illustrating the utility model and are not to be construed as limiting the scope of the utility model.

Example 1

Referring to fig. 1 to 13, the present embodiment provides a knob type dual-purpose air pump for inflation and suction, which comprises a pump body 1; the pump body 1 comprises a pump housing 11; the bottom side of the pump case 11 is provided with a first air port 1111; the pump shell 11 is internally provided with a blowing component 13, and the bottom side of the blowing component 13 is provided with a blowing air inlet 134 and a blowing air outlet 135; a reversing component 14 is arranged between the air blast component 13 and the first air port 1111; a reversing flow passage 1411 is arranged in the reversing component 14; the pump housing 11 is also provided with a knob assembly 12; the knob assembly 12 includes a knob 121 provided at the top side of the pump housing 11 and having only a rotational degree of freedom, a toggle 122 provided in the pump housing 11 and coupled with the knob 121; a micro switch 15 is further arranged in the pump shell 11, and the toggle piece 122 is provided with a first toggle part 1224 and a second toggle part 1223; the micro switch is matched with the first poking part 1224, and the air blast assembly 13 is used for being started when the micro switch 15 is triggered by the first poking part 1224; the second toggle part 1223 is matched with the reversing component 14, and is used for moving the reversing component 14, so that the reversing flow channel 1411 is switched between the air blowing inlet 134 and the air blowing outlet 135 of the air blowing component, and then the air blowing inlet 134 of the air blowing component 13 is communicated with the first air opening 1111 to provide an air suction function, or the air blowing outlet 135 of the air blowing component 13 is communicated with the first air opening 1111 to provide an air inflation function. In this embodiment, the pump housing 11 includes a lower housing 111 and an upper cover 112; the upper cover 112 is provided with a mounting hole, the knob 121 and the toggle part 122 are mounted with the pump shell 11 through the mounting hole, and the upper cover 112 is also provided with a mounting groove; the mounting groove is hinged with a handle, the handle can be turned up from the mounting groove for a user to lift the pump body, and the mounting groove is used for accommodating the handle when the pump is used; the protective cover is arranged on the mounting groove, and the protective cover can be hinged to the mounting groove in a flip-open mode or can be slid on the mounting groove in a sliding mode.

Referring again to fig. 6, the toggle 122 includes a rotary disk 1221 coupled to a knob; a rotating rod 1222 is fixed at the bottom side of the rotating disc 1221; a dial block is arranged at the bottom side of the rotating rod 1222 as a second dial part 1223; the bottom side of the rotating disc 1221 is further provided with a poking column as a first poking part 1224.

Referring again to fig. 6, 11 and 13, the knob 121 has two operating positions during the rotational travel; when the knob 121 rotates to the first working position, the first toggle portion 1224 triggers the micro switch 15, the reversing flow channel 1411 of the reversing assembly 14 is communicated between the air blowing outlet 135 and the first air port 1111, and the pump body 1 provides an air inflation function; when the knob 121 rotates to the second working position, the first stirring portion 1224 triggers the micro switch 15, the second stirring portion 1223 cooperates with the reversing assembly 14, the reversing flow channel 1411 of the reversing assembly 14 is communicated between the air blast inlet 134 and the first air inlet 1111, and the pump body 1 provides an air suction function.

Referring again to fig. 6 and 9, the knob 121 also has an initial position during the rotational travel; when the knob 121 rotates to the initial position, the first toggle part 1224 does not trigger the micro switch 15; a first return spring 1225 is also arranged between the rotary disk 1221 and the pump housing 11; the first return spring 1225 is used to maintain the knob assembly 12 in the initial position. In the present embodiment, one end of the first return spring 1225 is attached to the rotary disk 1221, and the other end is attached to the connection post 1121 provided in the pump housing 11.

In this embodiment, the number of the two pulling posts serving as the second pulling portion 1223 is 180 degrees, and accordingly, the first working position and the second working position are also 180 degrees in the rotation direction of the knob, the initial position is located at an intermediate position between the first working position and the second working position, and more specifically, when the knob is rotated 90 degrees counterclockwise from the initial position, the first working position is reached; when the knob is rotated 90 degrees clockwise from the initial position, the second working position is reached.

Referring again to fig. 5 and 9, the reversing assembly 14 includes a reversing block 141; the reversing flow channel 1411 penetrates through the reversing block 141 from top to bottom; the upper opening of the reversing flow passage 1411 is the same as the size of the blast air inlet 134 or the blast air outlet 135; the lower port of the diverting flow channel 1411 remains in correspondence with the first air port 1111 throughout the translational travel of the diverting block.

Referring to fig. 5 again, the reversing block 141 is provided with a compression platform 1412 at one end matched with the second stirring part 1223, and a second return spring 142 is further provided between one end of the reversing block 141 far away from the second stirring part 1223 and the pump shell 11; in the translation stroke of the reversing block 141, there is a first position communicated between the air blast air outlet 135 and the first air inlet 1111, and a second position communicated between the air blast air inlet 134 and the first air inlet 1111; the second pulling part 1223 is used for pulling the reversing block 141 to the second position, and the second return spring 142 is used for returning the reversing block 141 to the first position; alternatively, the second striking part 1223 is used to strike the reversing block 141 to the first position, and the second return spring 142 is used to return the reversing block 141 to the second position. Specifically, in this embodiment, the second striking part 1223 is configured to strike the reversing block 141 to the second position, and the second return spring 142 is configured to return the reversing block 141 to the first position. In addition, in the present embodiment, in order to stably connect one end of the second return spring 142 to the pump housing; a spring seat 143 is also provided; the end of the second return spring 142 is attached to a spring seat 143, and the spring seat 143 is fixedly attached to the pump housing.

Referring again to fig. 4, the blower assembly 13 includes a blower housing 131, an impeller 132 installed in the blower housing 131, a blower motor 133 for driving the impeller, and a blower flow path formed in the blower housing 131 at a bottom side of the blower housing 131, the blower flow path forming the blower inlet 134 and the blower outlet 135; the blast air inlet 134 and the blast air outlet 135 are located on the same plane, so that when the reversing block 141 translates, the reversing flow channel of the reversing block 141 is in butt joint with the blast air inlet 134 or the blast air outlet 135.

Referring again to fig. 3, a circuit board 16 is also disposed within the pump housing 11; the circuit board 16 is electrically connected with the micro switch 15 and the air blast assembly 13; the circuit board 16 is powered by an internal battery 17 or an external power supply. In this embodiment, a built-in battery is specifically adopted for power supply, and further, a charging interface is further arranged on the circuit board 16; a charging hole is also arranged in the mounting groove of the upper cover 112; the charging interface is inserted in the charging hole, the protective cover can be opened, and the pump body is charged by the charging interface.

In this embodiment, an indication mark is further provided on the upper surface of the upper cover at the peripheral side of the mounting hole, where the indication mark includes "index" (corresponding to the first working position), "OFF" (corresponding to the initial position), "DEFLATE" (corresponding to the second working position); when the knob is rotated to a first working position when the inflation function is needed, the first stirring part extrudes the contact of the micro switch, the micro switch feeds back signals, the air blowing component is started, at the moment, the air blowing air outlet, the reversing flow channel and the first air port are communicated, and the pump body is inflated; when the air suction function is needed, the knob is rotated to a second working position, the first stirring part extrudes the contact of the micro switch, the micro switch feeds back signals, the air blowing component is started, at the moment, the air blowing air inlet, the reversing flow passage and the first air inlet are communicated, and the pump body sucks air; when the rotary knob is not needed to be used, the rotary knob is loosened, the rotary knob returns to the initial position under the action of the first return spring, and when the rotary knob returns to the initial state from the air suction state, the second return spring pushes the reversing block to return to the initial position.

Example two

Referring to fig. 14 to 19, the present embodiment provides a knob type dual-purpose air pump for inflation and suction, which not only includes the pump body of the first embodiment, but also includes a mounting seat 2; the mounting seat 2 is internally provided with a containing cavity 21; the pump body 1 is arranged in the accommodating cavity 21; the bottom side of the mounting seat 2 is provided with a second air port 22 at a position corresponding to the first air port 1111 of the pump body 1; the mounting seat 2 is mounted on the inflatable product, and the second air port 22 is communicated with the air cavity of the inflatable product. In this embodiment, the outer side of the second air port 22 is further provided with a mesh cover 23 mounted and fixed with the mounting seat 2.

Referring again to fig. 15 to 19, the second port 22 is provided with a check valve assembly 3; the reversing block 141 also has a third toggle portion 1413; the air blowing component 13 is used for pushing the one-way valve component 3 open after the air passes through the air blowing outlet and the reversing flow channel when the reversing flow channel 1411 of the reversing block 141 is in butt joint with the air blowing outlet, and entering the air cavity of the inflatable product to realize inflation of the inflatable product; the air blast assembly 13 is further used for pushing the one-way valve assembly 3 open by the third poking part 1413 of the reversing block 141 when the reversing flow channel 1411 of the reversing block 141 is in butt joint with the air blast air inlet, so that air enters the air blast air inlet from the air cavity of the inflatable product against the one-way valve assembly 3, and the air of the inflatable product is exhausted.

The above embodiments should not limit the present utility model in any way, and all technical solutions obtained by equivalent substitution or equivalent conversion fall within the protection scope of the present utility model.

Claims (10)

1. A knob type inflating and sucking dual-purpose air pump is characterized in that: comprises a pump body (1); the pump body (1) comprises a pump shell (11); the bottom side of the pump shell (11) is provided with a first air port (1111); an air blowing component (13) is arranged in the pump shell (11), and an air blowing air inlet (134) and an air blowing air outlet (135) are formed in the bottom side of the air blowing component (13); a reversing component (14) is arranged between the air blast component (13) and the first air port (1111); a reversing flow passage (1411) is arranged in the reversing component (14); -the reversing assembly (14) comprises a reversing block (141); the reversing flow channel (1411) penetrates through the reversing block (141) up and down; the pump shell (11) is also provided with a knob assembly (12); the knob assembly (12) comprises a knob (121) arranged on the top side of the pump shell (11) and only provided with a rotation degree of freedom, and a toggle piece (122) which is positioned in the pump shell (11) and is in linkage with the knob (121); a micro switch (15) is further arranged in the pump shell (11), and the toggle piece (122) is provided with a first toggle part (1224) and a second toggle part (1223); the micro switch is matched with the first stirring part (1224), and the air blowing component (13) is used for being started when the micro switch (15) is triggered by the first stirring part (1224); the second stirring part (1223) is matched with the reversing assembly (14) and is used for enabling the reversing assembly (14) to move, further enabling the reversing flow channel (1411) to be switched between the air blowing inlet (134) and the air blowing outlet (135) of the air blowing assembly, further enabling the air blowing inlet (134) of the air blowing assembly (13) to be communicated with the first air opening (1111) to provide an air suction function, or enabling the air blowing outlet (135) of the air blowing assembly (13) to be communicated with the first air opening (1111) to provide an air inflation function.

2. The knob type dual-purpose inflation and suction air pump of claim 1, wherein: the poking piece (122) comprises a rotating disc (1221) connected with a knob; a rotary rod (1222) is fixed at the bottom side of the rotary disk (1221); a shifting block is arranged at the bottom side of the rotary rod (1222) and used as a second shifting part (1223); the bottom side of the rotary disk (1221) is also provided with a poking column as a first poking part (1224).

3. The knob type dual-purpose inflation and suction air pump as set forth in claim 2, wherein: the knob (121) has two working positions in the rotating stroke; when the knob (121) rotates to a first working position, the first stirring part (1224) triggers the micro switch (15), the reversing flow passage (1411) of the reversing assembly (14) is communicated between the air blowing outlet (135) and the first air port (1111), and the pump body (1) provides an air inflation function; when the knob (121) rotates to a second working position, the first stirring part (1224) triggers the micro switch (15), the second stirring part (1223) is matched with the reversing assembly (14), the reversing flow passage (1411) of the reversing assembly (14) is communicated between the air blowing inlet (134) and the first air opening (1111), and the pump body (1) provides an air suction function.

4. A knob type dual-purpose air pump for inflating and sucking according to claim 3, wherein: the knob (121) also has an initial position during the rotational travel; when the knob (121) rotates to an initial position, the first stirring part (1224) does not trigger the micro switch (15); a first reset spring (1225) is arranged between the rotary disk (1221) and the pump shell (11); the first return spring (1225) is used to hold the knob assembly (12) in an initial position.

5. A knob type dual-purpose air pump for inflating and sucking according to claim 3, wherein: the upper opening of the reversing flow channel (1411) is the same as the blast air inlet (134) or the blast air outlet (135); the lower opening of the reversing flow channel (1411) always corresponds to the first air opening (1111) in the translation stroke of the reversing block.

6. The rotary knob type dual-purpose inflation and suction air pump of claim 5, wherein: the reversing block (141) is provided with a compression platform (1412) at one end matched with the second stirring part (1223), and a second reset spring (142) is further arranged between one end far away from the second stirring part (1223) of the reversing block (141) and the pump shell (11); the translation travel of the reversing block (141) is provided with a first position communicated between the air blowing air outlet (135) and the first air inlet (1111) and a second position communicated between the air blowing air inlet (134) and the first air inlet (1111); the second stirring part (1223) is used for stirring the reversing block (141) to a second position, and the second reset spring (142) is used for resetting the reversing block (141) to the first position; or, the second stirring part (1223) is used for stirring the reversing block (141) to the first position, and the second return spring (142) is used for returning the reversing block (141) to the second position.

7. The rotary knob type dual-purpose inflation and suction air pump of claim 6, wherein: the air blowing component (13) comprises an air blowing shell (131), an impeller (132) arranged in the air blowing shell (131), an air blowing motor (133) used for driving the impeller, and an air blowing runner arranged in the air blowing shell (131), wherein the air blowing runner is formed with an air blowing air inlet (134) and an air blowing air outlet (135) at the bottom side of the air blowing shell (131); the air blowing inlet (134) and the air blowing outlet (135) are positioned on the same plane, and the air blowing inlet (134) and the air blowing outlet (135) are used for enabling the reversing flow passage of the reversing block (141) to be in butt joint with the air blowing inlet (134) or the air blowing outlet (135) when the reversing block (141) translates.

8. The knob type dual-purpose inflation and suction air pump of claim 1, wherein: a circuit board (16) is also arranged in the pump shell (11); the circuit board (16) is electrically connected with the micro switch (15) and the air blast assembly (13); the circuit board (16) is powered by an internal battery (17) or an external power supply.

9. A knob type inflation and deflation dual-purpose air pump as claimed in any one of claims 1 to 8, wherein: the air pump also comprises a mounting seat (2); the mounting seat (2) is internally provided with a containing cavity (21); the pump body (1) is arranged in the accommodating cavity (21); the bottom side of the mounting seat (2) is provided with a second air port (22) at a position corresponding to the first air port (1111) of the pump body (1); the mounting seat (2) is arranged on the inflatable product, and the second air port (22) is communicated with the air cavity of the inflatable product.

10. The rotary knob type dual-purpose inflation and suction air pump of claim 9, wherein: the second air port (22) is provided with a one-way valve assembly (3); the reversing block (141) is also provided with a third poking part (1413); the air blowing component (13) is used for pushing the one-way valve component (3) open after air passes through the air blowing air outlet and the reversing flow channel when the reversing flow channel (1411) of the reversing block (141) is in butt joint with the air blowing air outlet, and the air enters an air cavity of an inflatable product to inflate the inflatable product; the air blowing component (13) is further used for pushing the one-way valve component (3) away by a third poking part (1413) of the reversing block (141) when the reversing flow channel (1411) of the reversing block (141) is in butt joint with the air blowing air inlet, so that air enters the air blowing air inlet from the air cavity of the inflatable product against the one-way valve component (3), and the air of the inflatable product is exhausted.