Combined pump

Abstract

The utility model relates to a combined pump which comprises an air pump inner container and an interface shell, and the interface shell comprises a shell body and a bottom cover connected to the lower end of the shell body. A first air hole is formed in the bottom of the shell, a containing cavity is formed in the shell, and a push rod capable of moving up and down is arranged in the containing cavity; a valve body cavity is formed in the bottom cover, and a one-way valve and an elastic fixing piece are arranged in the valve body cavity. The accommodating chamber is communicated with the valve body chamber through the first air hole; the push rod is connected into the shell, and the lower end of the push rod movably abuts against the one-way valve; the one-way valve abuts against the lower end of the shell through an elastic fixing piece. The push rod matched with the one-way valve is arranged on the connector shell, so that the connector shell can be inflated and deflated by means of a built-in air pump and can also be independently deflated, and an air valve does not need to be additionally arranged on an inflation product.

Description

Technical Field

[0001] The utility model relates to the technical field of air pump application, in particular to a combined pump. Background Art

[0002] Inflatable products are becoming more and more popular among consumers due to their small size, convenience for carrying and collection. Inflatable products on the market, such as inflatable mattresses, inflatable beds, inflatable sofas, inflatable pillows, inflatable footrests and inflatable toys, are mostly inflated into the cavity through air valves, and inflatable products can be transformed into various specific shapes. In order to make the inflation and deflation operation more convenient, built-in air pumps fixedly installed on inflatable products have appeared on the market.

[0003] The built-in air pump is fixedly installed on the inflatable product. A built-in air pump can only be used one-to-one with the inflatable product, and it is not convenient to charge and repair the air pump. Once the air pump is damaged, it either takes a lot of time and energy to repair it, or it is connected to the inflatable product and discarded together.

[0004] In view of this, there are currently structures on the market that can separate the movement of the air pump from the inflatable product. For example, a utility model patent with a publication number of CN219691779U and a publication date of September 15, 2023 discloses a waterproof air pump with a detachable movement, which includes a waterproof housing and an air pump movement detachably connected to the waterproof housing. The air pump movement can be disassembled and separated as a whole relative to the housing, which is convenient for the maintenance or replacement of the air pump movement. One air pump movement can be used with multiple inflatable products, which is flexible and convenient to use. However, when the air pump is applied to inflatable products, the air pump can only inflate the inflatable product. If deflation is required or manual inflation is required when the air pump movement is damaged, an additional deflation valve can only be set on the inflatable product to achieve this, resulting in a complex structure of the inflatable product, and the user's inflation and deflation operations are troublesome, and the user's inflation and deflation operations are low in convenience and flexibility. Utility Model Content

[0005] In view of the problems existing in the prior art, the purpose of the utility model is to provide a combined pump, through which the inflatable product can be inflated and deflated without additionally providing an air valve on the inflatable product, thereby improving the convenience of the inflation and deflation operations.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A combined pump comprises an interface shell and an air pump liner, wherein the interface shell comprises a shell and a bottom cover connected to the lower end of the shell; a first air hole is provided at the bottom of the shell, a receiving chamber for placing the air pump liner is formed inside the shell, a push rod movable up and down is provided in the receiving chamber, and a avoidance groove for avoiding the push rod is provided on the side wall of the air pump liner; a second air hole is provided at the bottom of the bottom cover, a valve body chamber is formed inside the bottom cover, and a one-way valve and an elastic fixing member are provided in the valve body chamber;

[0008] The accommodating chamber is connected to the valve body chamber through the first air hole; the push rod is connected to the inside of the shell, and its lower end movably abuts against the one-way valve; one end of the elastic fixing member is connected to the bottom cover, and the other end abuts against the lower end of the one-way valve; the one-way valve abuts against the lower end of the shell through the elastic fixing member, and seals the first air hole to cut off the communication between the accommodating chamber and the valve body chamber.

[0009] The interface shell also includes an upper cover which is sealed and connected to the upper end of the shell.

[0010] The upper cover is provided with a third air hole, and the third air hole is provided with a valve plug.

[0011] A control switch is provided on the upper end surface of the air pump inner shell, and a toggle block cooperating with the control switch is provided on the inner side surface of the upper cover. When the air pump inner shell is arranged in the accommodating chamber and the upper cover is closed on the shell, the toggle block presses against the control switch to toggle the control switch to the closed position.

[0012] The inner side wall of the shell is formed with a sliding groove, and the push rod is installed in the sliding groove.

[0013] A limit block is formed at the lower part of the push rod. When the push rod moves downward to a set stroke, the limit block presses against the bottom of the shell.

[0014] The outer side of the push rod is matched with a push rod matching piece, which is fixedly connected in the shell; the push rod matching piece is provided with a sliding limit groove, and the upper part of the push rod is provided with a clamping block, which is matched in the sliding limit groove, and the lower part of the sliding limit groove is formed with a clamping groove that matches the clamping block and limits the movement of the clamping block.

[0015] The sliding limit groove passes through the push rod matching piece, and the end of the clamping block extends out of the sliding limit groove; a protrusion that movably matches the clamping block is arranged in the avoidance groove of the air pump inner liner.

[0016] The convex block is located at the lower part of the avoidance groove, and the lower end surface of the convex block is an inclined surface, and the upper end surface is a horizontal surface.

[0017] The air pump liner includes a pump shell and an air pump assembly arranged in the pump shell, and the avoidance groove is formed on the outside of the pump shell.

[0018] The pump housing includes a main body, an upper cover body connected to the top of the main body and a lower cover body connected to the bottom of the main body. The side of the upper cover body is provided with two buttons arranged in opposite surfaces. The buttons are movably arranged on the upper cover body through button springs. The inner side wall of the shell of the interface shell is formed with a step surface that cooperates with the buttons.

[0019] The air pump assembly includes a motor, a pump chamber upper cover, a pump chamber lower cover and blades. The pump chamber upper cover and the pump chamber lower cover are connected to form a pump chamber. The blades are arranged in the pump chamber. The motor is arranged outside the pump chamber and connected to the blades.

[0020] A battery is also arranged in the pump housing, the battery is connected to the motor, and the battery is connected to a charging circuit board.

[0021] The avoidance groove is equipped with an air nozzle.

[0022] The one-way valve comprises a valve seat and a one-way valve plate arranged on the valve seat. The valve seat is provided with a valve hole. The one-way valve is located on the lower end surface of the valve seat and is sealed on the valve hole.

[0023] After adopting the above solution, the utility model sets a push rod that cooperates with the one-way valve on the interface shell, so that the interface shell can be inflated and deflated with the help of a built-in air pump, and can also be deflated independently, without the need to set an additional air valve on the inflatable product. At the same time, based on this structure, it also provides users with a variety of options for inflation and deflation, improving the convenience of users. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the structure of the combined pump;

[0025] Figure 2 is an exploded schematic diagram of the interface housing;

[0026] Figure 3 It is a schematic diagram of the combined state of the interface housing;

[0027] Figure 4 for Figure 3 A top view of

[0028] Figure 5 for Figure 4 AA direction section view;

[0029] Figure 6 for Figure 4 BB direction cross-sectional view;

[0030] Figure 7 Schematic diagram of the matching between the upper cover and the shell Figure 1 ;

[0031] Figure 8 Schematic diagram of the matching between the upper cover and the shell Figure 2 ;

[0032] Fig. 9 Schematic diagram of the matching between the upper cover and the shell Figure 3 ;

[0033] Fig.10 for Fig. 9 The structural breakdown diagram of

[0034] Fig.11 This is an exploded view of the structure of the air pump liner;

[0035] Fig.12 It is a schematic diagram of the combined pump in a non-inflation and non-deflation state;

[0036] Fig.13 It is a schematic diagram of the state of the combined pump during inflation;

[0037] Fig.14 A schematic diagram of the state in which the interface housing is inflated with the aid of an external air pump;

[0038] Fig.15 It is a schematic diagram of the state of the combined pump when it is inflated with the help of an external air pump;

[0039] Fig.16 This is a schematic diagram of the state when the air pump inner tank is inverted and deflated;

[0040] Fig.17 A schematic diagram of the interface housing when it is deflated;

[0041] Fig.18 This is a schematic diagram of the combined pump when it is deflated.

[0042] Description of labels:

[0043] Interface housing 100;

[0044] Shell 110; accommodating chamber 111; first air hole 112; sliding groove 113; step surface 114;

[0045] Bottom cover 120; valve body chamber 121; second air hole 122

[0046] Upper cover 130; third air hole 131; valve plug 132; upper cover fastener 133; fastener spring 134; toggle block 135;

[0047] Push rod 140; clamping block 141; limiting block 142;

[0048] Push rod matching piece 150; sliding limit groove 151; clamping groove 152;

[0049] One-way valve 160; valve seat 161; valve hole 162; one-way valve plate 163;

[0050] Elastic fixing member 170;

[0051] Air pump liner 200;

[0052] Pump housing 210; avoidance groove 211; protrusion 2111; body 212; upper cover 213; button 2131; button spring 2132; lower cover 214;

[0053] Air pump assembly 220; motor 221; pump chamber upper cover 222; pump chamber lower cover 223; blades 224;

[0054] Battery 230;

[0055] Charging circuit board 240;

[0056] Control switch 250. DETAILED DESCRIPTION

[0057] Reference Figure 1 As shown, this embodiment discloses a combined pump, including an interface shell 100 and an air pump liner 200. When in use, the interface shell 100 is welded to the inflatable product, and the air pump liner 200 is a detachable structure from the interface shell 100, that is, the air pump liner 200 can be installed in the interface shell 100 and can also be taken out from the interface shell 100.

[0058] like Figure 2-6 As shown, the interface housing 100 includes a housing 110 and a bottom cover 120 connected to the lower end of the housing 110. The housing 110 has a first air hole 112 at the bottom. The housing 110 has a receiving chamber 111 for placing the air pump liner 200. The receiving chamber 111 has a push rod 140 that can move up and down. The side wall of the air pump liner 200 has an avoidance groove 211 for avoiding the push rod 140. The bottom of the bottom cover 120 has a second air hole 122. The bottom of the bottom cover 120 has a valve body chamber 121 formed inside the bottom cover 120. The valve body chamber 121 has a one-way valve 160 and an elastic fixation. The accommodating chamber 111 is connected to the valve body chamber 121 through the first air hole 112; the push rod 140 is connected to the inside of the shell 110, and its lower end movably abuts the one-way valve 160; one end of the elastic fixing member 170 is connected to the bottom cover 120, and the other end abuts the lower end of the one-way valve 160; the one-way valve 160 abuts on the lower end of the shell 110 through the elastic fixing member 170, and seals the first air hole 112, thereby isolating the communication between the accommodating chamber 111 and the valve body chamber 121.

[0059] The air pump liner 200 is provided with an air inlet and an air outlet, and at least the air outlet is adapted to the first air hole 112 .

[0060] In this embodiment, the air pump liner 200 can be either an inflatable pump or a charge-discharge air pump. The inflatable pump refers to an air pump in which gas can only enter through the air inlet and be discharged from the air outlet when the air pump is in use. The charge-discharge air pump refers to an air pump with an inflating function and a deflation function. When the inflating function is activated, gas enters from the air inlet and is discharged from the air outlet; when the deflation function is activated, gas enters from the air outlet and is discharged from the air inlet.

[0061] When inflating an inflatable product, the air pump liner 200 can be installed in the accommodating chamber 111, and the air outlet of the air pump is connected to the first air hole 112 of the housing 110. When the air pump liner 200 is started, the one-way valve 160 is opened under the action of the air pump liner 200, and the gas enters the inflatable product through the air pump liner 200, the first air hole 112, the valve body chamber 121 and the second air hole 122.

[0062] When the inflatable product needs to be deflated, the air pump liner 200 is taken out of the accommodating chamber 111, and then the push rod 140 is pushed downward, and the lower end of the push rod 140 pushes at least a part of the one-way valve 160 away from the housing 110, and compresses the elastic fixing member 170, so that the accommodating chamber 111 and the valve body chamber 121 are connected. At this time, the gas inside the inflatable product will be discharged to the outside through the second air hole 122, the valve body chamber 121 and the accommodating chamber 111, thereby achieving the deflation of the inflatable product.

[0063] Or in order to speed up the deflation speed, the air pump liner 200 is cooperated to deflate. Specifically, when the air pump liner 200 is an air pump, the air pump liner 200 is taken out, the air pump liner 200 is started, and then the air pump liner 200 is reversely placed in the accommodating chamber 111, and the air inlet of the air pump liner 200 is docked with the first air hole 112. At the same time, the push rod 140 is pushed downward to push at least a part of the one-way valve 160 away from the shell 110, so that the accommodating chamber 111 and the valve body chamber 121 are connected. The internal gas of the inflatable product is discharged outward through the second air hole 122, the valve body chamber 121, the first air hole 112 and the air pump liner 200, thereby achieving the deflation of the inflatable product. When the air pump liner 200 is an inflatable and deflation air pump, the air pump liner 200 can be placed forward in the accommodating chamber 111, and then the push rod 140 is pushed to push at least a portion of the one-way valve 160 away from the housing 110, so that the accommodating chamber 111 and the valve body chamber 121 are connected. The gas inside the inflatable product is discharged to the outside through the second air hole 122, the valve body chamber 121, the first air hole 112 and the air pump liner 200, thereby achieving the deflation of the inflatable product.

[0064] In this embodiment, a sliding groove 113 is formed on the inner wall of the housing 110 , and the push rod is installed in the sliding groove 113 .

[0065] The outer side of the push rod 140 is matched with a push rod matching piece 150, and the push rod matching piece 150 is fixedly connected in the housing 110. A sliding limit groove 151 is provided on the push rod matching piece 150, and a clamping block 141 is provided on the upper part of the push rod 140, and the clamping block 141 is matched in the sliding limit groove 151. A clamping groove 152 is formed at the lower part of the sliding limit groove 151 to match the clamping block 141 and limit the movement of the clamping block 141. The outer side of the push rod 140 refers to the side of the push rod 140 away from the side wall of the housing 110. In this embodiment, the push rod matching piece 150 and the housing 110 are fixed in the following manner: a fixing groove is provided on the inner side wall of the housing 110, and the push rod matching piece 150 is installed in the fixing groove, and the lower end is clamped with the housing 110 through a buckle.

[0066] When the push rod 140 is pushed downward, the block 141 slides in the sliding limit groove 151. When the block 141 slides into the groove 152, the push rod 140 is released, and the push rod 140 can be kept in the groove 152. At this time, part of the one-way valve 160 is always away from the bottom of the housing 110, and the accommodating chamber 111 and the valve body chamber 121 are always connected. This makes it unnecessary for the user to always press down the push rod 140 when inflating and deflation.

[0067] In addition, a limit block 142 is formed at the lower part of the push rod 140. When the push rod 140 moves down to a set stroke, the limit block 142 presses against the bottom of the housing 110 to limit the push rod 140 from moving further downward. Of course, the control of the downward stroke of the push rod 140 can also be achieved by the sliding limit slot 151.

[0068] When the air pump liner 200 uses an air pump, a protrusion 2111 is provided in the avoidance groove 211 of the air pump liner 200, and the protrusion 2111 is located at the lower part of the avoidance groove 211, and the lower end surface of the protrusion 2111 is an inclined surface, and the upper end surface is a horizontal surface. Correspondingly, the sliding limit groove 151 passes through the push rod matching piece 150, so that the end of the block 141 can extend out of the sliding limit groove 151 and flexibly cooperate with the protrusion 2111. When the air pump liner 200 is placed in the accommodating chamber 111 in the forward direction, since the lower end surface of the protrusion 2111 is an inclined surface, the protrusion 2111 will slide over the block 141. When the air pump liner 200 is placed in the reverse direction for deflation, the protrusion 2111 pushes the block 141 downward, so that the block 141 enters the slot 152. That is to say, in this case, there is no need to further press down the push rod 140 when using the air pump liner 200 to deflate.

[0069] The air pump liner 200 includes a pump housing 210 and an air pump assembly 220 disposed in the pump housing 210, and the avoidance groove 211 is formed on the outside of the pump housing 210. The pump housing 210 includes a body 212, an upper cover 213 connected to the upper part of the body 212, and a lower cover 214 connected to the lower part of the body 212. The side of the upper cover 213 is provided with two buttons 2131 arranged in opposite faces. The button 2131 is movably arranged on the upper cover 213 through a button spring 2132. The inner side wall of the housing 110 of the interface housing 100 is formed with a step surface 114 that cooperates with the button 2131. The air pump liner 200 can be relatively stably fixed in the accommodating chamber 111 by the cooperation between the button 2131 and the step surface 114.

[0070] In this embodiment, a battery 230 is further disposed in the pump housing 210 . The battery 230 is connected to the motor 221 , and the battery 230 is connected to a charging circuit board 240 .

[0071] The avoidance groove 211 is provided with an air nozzle. After the air pump liner 200 is taken out, the air nozzle can be connected to inflate other types of inflatable products.

[0072] In this embodiment, the interface housing 100 further includes an upper cover 130, which is sealed to the upper end of the housing 110. Specifically, a sealing ring may be provided on the upper cover 130 to ensure the sealing between the housing 110 and the upper cover 130. The provision of the upper cover 130 may improve the sealing performance of the inflation and deflation interface and prevent the inflatable product from leaking.

[0073] The upper cover 130 is provided with a third air hole 131, and the third air hole 131 is provided with a valve plug 132. When the air pump adapted to the accommodating chamber 111 cannot be used normally, the upper cover 130 is covered on the housing 110, and then other electric air pumps or manual air pumps are used to inflate the inflatable product through the third air hole 131, thereby ensuring normal inflation of the inflatable product.

[0074] like Figure 7 and Figure 8 As shown, the upper cover 130 is connected to the housing 110 by threaded engagement, wherein Figure 7 The following is a normal thread connection. Figure 8 The 1 / 4 thread connection is shown. Alternatively, Figure 2 and Figure 5 As shown, one end of the upper cover 130 is hinged to the housing 110, and the other end is connected to the housing 110 through the upper cover fastener 133. The upper cover fastener 133 is movably mounted on the housing 110 through the fastener spring 134. When the upper cover 130 is closed downward on the housing 110, the upper cover 130 pushes the upper cover fastener 133 to move outward. When the upper cover 130 is closed in place, the fastener spring 134 pushes the upper cover fastener 133 to fasten in the upper cover 130. Alternatively, as Fig. 9 and Fig.10 As shown, one end of the upper cover 130 is hinged to the housing 110, and the other end is connected to the housing 110 through an upper cover fastener 133. The upper cover fastener 133 is movably mounted on the upper cover 130 through a fastener spring 134. When the upper cover 130 is covered downward on the housing 110, the housing 110 pushes the upper cover fastener 133 to move inward. When the upper cover 130 is covered in place, the fastener spring 134 pushes the upper cover fastener 133 to be fastened in the housing 110.

[0075] Combination Figure 1 and Fig.11 As shown, a control switch 250 is provided on the upper end surface of the air pump liner 200, and a toggle block 135 cooperating with the control switch 250 is provided on the inner side surface of the upper cover 130. When the air pump liner 200 is arranged in the accommodating chamber 111 and the upper cover 130 is covered on the housing 110, the toggle block 135 presses against the control switch 250 to toggle the control switch 250 to the closed position. In this way, when the air pump liner 200 is inflated, in the process of directly closing the upper cover 130, the toggle block 135 can toggle the control switch 250 to the closed position, and directly close the air pump liner 200 without having to close it manually.

[0076] Continue to refer to Figure 2 As shown, in this embodiment, the one-way valve 160 includes a valve seat 161 and a one-way valve plate 163 disposed on the valve seat 161. The valve seat 161 is provided with a valve hole 162. The one-way valve 160 is located at the lower end surface of the valve seat 161 and is blocked on the valve hole 162. A sealing ring is provided on the valve seat 161 to ensure that the one-way valve 160 can be sealed and connected to the lower end of the housing 110.

[0077] In the drawings given in this embodiment, the air pump liner 200 is an air pump. Then, the air pump assembly 220 of the air pump liner 200 includes a motor 221, a pump chamber upper cover 222, a pump chamber lower cover 223 and blades 224. The pump chamber upper cover 222 and the pump chamber lower cover 223 are connected to form a pump chamber, the blades 224 are arranged in the pump chamber, and the motor 221 is arranged outside the pump chamber and connected to the blades 224.

[0078] When the air pump liner 200 is an air charging and discharging pump, in the composition structure of the air pump assembly 220, the motor 221 can be a forward and reverse motor 221, or a charging and discharging switching assembly can be added to the air pump assembly 220. The charging and discharging motor 221 is an existing product and will not be described in detail here.

[0079] In order to better illustrate the technical effects achieved by the present invention, the following will take the case where the air pump liner 200 is configured as an air pump as an example, and will describe various usage modes of the combined pump in conjunction with the drawings in the specification.

[0080] The combined pump can inflate inflatable products in the following ways:

[0081] First, as Fig.13 As shown, the air pump liner 200 is located in the accommodating chamber 111, the upper cover 130 is opened, and the air pump liner 200 is started. Under the action of the air pump liner 200, the one-way valve 160 is opened, and the gas enters the inflatable product through the air pump liner 200, the first air hole 112, the valve body chamber 121 and the second air hole 122.

[0082] Second, if Fig.14 and Fig.15 As shown, when the air pump liner 200 is damaged or out of power and cannot be used, the air pump liner 200 is removed or not removed. The upper cover 130 is closed, the valve plug 132 on the third air hole 131 is removed, and then the inflatable product is inflated through the third air hole 131 by means of a manual air pump or other types of air pumps.

[0083] The combined pump can deflate inflatable products in the following ways:

[0084] First, as Fig.16 As shown, after the air pump liner 200 is started, it is reversely placed into the accommodating chamber 111, and the protrusion 2111 on the air pump liner 200 pushes the block 141 on the push rod 140 downward, so that the push rod 140 pushes the one-way valve 160 partially away from the bottom of the housing 110, and the accommodating chamber 111 is connected with the valve body chamber 121. Under the action of the air pump liner 200, the gas inside the inflatable product is discharged to the outside through the second air hole 122, the valve body chamber 121, the first air hole 112 and the air pump liner 200, thereby achieving the deflation of the inflatable product.

[0085] Second, if Fig.17 and Fig.18 As shown, the air pump liner 200 is taken out or not, the upper cover 130 is opened, and the push rod 140 is pushed downward, the lower end of the push rod 140 pushes at least a part of the one-way valve 160 away from the housing 110, and compresses the elastic fixing member 170, so that the accommodating chamber 111 and the valve body chamber 121 are connected. At this time, the gas inside the inflatable product will be discharged to the outside through the second air hole 122, the valve body chamber 121 and the accommodating chamber 111, thereby realizing the deflation of the inflatable product.

[0086] When not inflating or deflating, the air pump liner 200 can be placed in the accommodating chamber 111 or taken out from the accommodating chamber 111 .

[0087] In summary, the key point of the utility model is that the utility model provides a push rod 140 that cooperates with a one-way valve 160 on the interface housing 100, so that the interface housing 100 can be inflated and deflated with the help of a built-in air pump, and can also be deflated independently, without the need to provide an additional air valve on the inflatable product. At the same time, based on this structure, it also provides users with a variety of options for inflation and deflation, thereby improving the convenience of users.

[0088] The above description is only an embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any slight modification, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A combined pump, comprising an interface housing and an air pump liner, characterized in that: The interface shell includes a shell and a bottom cover connected to the lower end of the shell; a first air hole is provided at the bottom of the shell, a receiving chamber for placing an air pump liner is formed inside the shell, a push rod that can move up and down is provided in the receiving chamber, and a avoidance groove for avoiding the push rod is provided on the side wall of the air pump liner; a second air hole is provided at the bottom of the bottom cover, a valve body chamber is formed inside the bottom cover, and a one-way valve and an elastic fixing member are provided in the valve body chamber; The accommodating chamber is connected to the valve body chamber through the first air hole; the push rod is connected to the inside of the shell, and its lower end movably abuts against the one-way valve; one end of the elastic fixing member is connected to the bottom cover, and the other end abuts against the lower end of the one-way valve; the one-way valve abuts against the lower end of the shell through the elastic fixing member, and seals the first air hole to cut off the communication between the accommodating chamber and the valve body chamber.

2. A combined pump according to claim 1, characterized in that: The interface shell also includes an upper cover which is sealed and connected to the upper end of the shell.

3. A combined pump according to claim 2, characterized in that: The upper cover is provided with a third air hole, and the third air hole is provided with a valve plug.

4. A combined pump according to claim 2, characterized in that: A control switch is provided on the upper end surface of the air pump inner shell, and a toggle block cooperating with the control switch is provided on the inner side surface of the upper cover. When the air pump inner shell is arranged in the accommodating chamber and the upper cover is closed on the shell, the toggle block presses against the control switch to toggle the control switch to the closed position.

5. A combined pump according to claim 1, characterized in that: The inner side wall of the shell is formed with a sliding groove, and the push rod is installed in the sliding groove.

6. A combined pump according to claim 5, characterized in that: A limit block is formed at the lower part of the push rod. When the push rod moves downward to a set stroke, the limit block presses against the bottom of the shell.

7. A combined pump according to claim 5, characterized in that: The outer side of the push rod is matched with a push rod matching piece, which is fixedly connected in the shell; the push rod matching piece is provided with a sliding limit groove, and the upper part of the push rod is provided with a clamping block, which is matched in the sliding limit groove, and the lower part of the sliding limit groove is formed with a clamping groove that matches the clamping block and limits the movement of the clamping block.

8. A combined pump according to claim 7, characterized in that: The sliding limit groove passes through the push rod matching piece, and the end of the clamping block extends out of the sliding limit groove; a protrusion that movably matches the clamping block is arranged in the avoidance groove of the air pump inner liner.

9. A combined pump according to claim 8, characterized in that: The convex block is located at the lower part of the avoidance groove, and the lower end surface of the convex block is an inclined surface, and the upper end surface is a horizontal surface.

10. A combined pump according to claim 1, characterized in that: The air pump liner includes a pump shell and an air pump assembly arranged in the pump shell, and the avoidance groove is formed on the outside of the pump shell.

11. A combined pump according to claim 10, characterized in that: The pump housing includes a main body, an upper cover body connected to the top of the main body and a lower cover body connected to the bottom of the main body. The side of the upper cover body is provided with two buttons arranged in opposite surfaces. The buttons are movably arranged on the upper cover body through button springs. The inner side wall of the shell of the interface shell is formed with a step surface that cooperates with the buttons.

12. A combined pump according to claim 10, characterized in that: The air pump assembly includes a motor, a pump chamber upper cover, a pump chamber lower cover and blades. The pump chamber upper cover and the pump chamber lower cover are connected to form a pump chamber. The blades are arranged in the pump chamber. The motor is arranged outside the pump chamber and connected to the blades.

13. A combined pump according to claim 10, characterized in that: A battery is also arranged in the pump housing, the battery is connected to the motor, and the battery is connected to a charging circuit board.

14. A combined pump according to claim 10, characterized in that: The avoidance groove is equipped with an air nozzle.

15. The combined pump according to claim 1, characterized in that: The one-way valve comprises a valve seat and a one-way valve plate arranged on the valve seat. The valve seat is provided with a valve hole. The one-way valve is located on the lower end surface of the valve seat and is sealed on the valve hole.

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