Inflation and deflation pump with electric drive valve

Abstract

The utility model aims to provide an electrically-driven valve inflation and deflation pump, which comprises an inflation and deflation assembly, a valve assembly and an opening and closing assembly, the inflation and deflation assembly comprises a pump shell, an inflation and deflation fan and an air supply fan, the pump shell is provided with a first air hole, a second air hole and an air supply hole, and the second air hole and the air supply hole are respectively communicated with the first air hole. The inflation and deflation fan and the air supply fan are both arranged in the pump shell, the valve assembly comprises a guide frame, a pressing plate, a valve block and an elastic piece, the guide frame is arranged on the inner side wall of the second air hole, the pressing plate is arranged in the guide frame in a sliding mode, the valve block is arranged on the pressing plate, and the elastic piece abuts against the pressing plate and the guide frame. The valve opening driving part is arranged in the pump shell, one end of the jacking column is connected with an output shaft of the valve opening driving part, a closed pushing face is arranged at the other end of the jacking column, and when the valve opening driving part drives the jacking column to rotate, the closed pushing face pushes the pressing plate, so that the valve plate is closed or away from the second air hole.

Description

Technical Field

[0001] The utility model relates to the technical field of air pumps, in particular to an electric-driven valve air charging and discharging pump. Background Technique

[0002] An air pump refers to a tool used to inflate inflatable products such as air cushions and air beds. With the development of technology, it has evolved from the past manual inflation to the current electric air charging and discharging. Specifically, an air pump with a built-in fan is used to charge and discharge inflatable products, which can effectively improve the inflation efficiency.

[0003] When the air pump stops, in order to prevent the gas in the inflatable product from flowing back, a valve is usually installed at the position where the air pump is connected to the inflatable product. During inflation, the valve is mainly pushed open by air pressure. When the air pump sucks air, an additional valve opening structure is required to open the valve for air suction. That is, the valve opening methods in the inflation state and the air suction state of the existing air pumps are not the same, and this structure will result in inconsistent aperture sizes during inflation and deflation. Secondly, after the inflatable product has been used for a period of time, its air pressure will slowly decrease. The existing air pumps can only replenish air to the inflatable product by starting the fan for air charging and discharging, but this method is only suitable for situations where the air pressure drops too much, otherwise it is easy to have the problem of excessive air replenishment. In view of this, in order to solve the above problems, the electric-driven valve air charging and discharging pump of the present application is proposed. Content of the Utility Model

[0004] The purpose of the utility model is to overcome the deficiencies in the prior art and provide an electric-driven valve air charging and discharging pump that can make the aperture sizes of the valve opening during air charging and discharging consistent and can perform micro-air replenishment on inflatable products.

[0005] The purpose of the utility model is achieved by the following technical solutions:

[0006] An electric-driven valve air charging and discharging pump, comprising:

[0007] A charging and discharging assembly, the charging and discharging assembly includes a pump housing, a charging and discharging fan and a air replenishment fan. The pump housing is provided with a first air hole, a second air hole and an air replenishment hole. The second air hole and the air replenishment hole are respectively communicated with the first air hole. The charging and discharging fan and the air replenishment fan are both arranged in the pump housing, and the charging and discharging fan is located between the first air hole and the second air hole, and the air replenishment fan is located between the first air hole and the air replenishment hole;

[0008] Valve assembly, the valve assembly includes a guide frame, a pressing plate, a valve piece and an elastic member. The guide frame is arranged on the inner side wall of the second air hole. The pressing plate is slidably arranged in the guide frame. The valve piece is arranged on the pressing plate. The elastic member abuts against the pressing plate and the guide frame respectively. The elastic member is used to push the pressing plate so that the pressing plate drives the valve piece to approach the second air hole; and

[0009] Opening and closing assembly, the opening and closing assembly includes an opening valve driving member and a top column. The opening valve driving member is arranged in the pump housing. The top column is rotatably arranged in the pump housing, and one end of the top column is connected to the output shaft of the opening valve driving member. A closing push surface is formed at the other end of the top column. When the opening valve driving member drives the top column to rotate, the closing push surface pushes the pressing plate so that the valve piece seals or moves away from the second air hole.

[0010] Optionally, the closing push surface includes two flat push surfaces and two concave arc push surfaces, and the two concave arc push surfaces and the two flat push surfaces are connected end to end in sequence.

[0011] Optionally, a guide groove is formed in the guide frame. The pressing plate includes a sliding block and a top block. One end of the sliding block is arranged on the top block. The sliding block is slidably arranged in the guide groove. The valve piece is arranged on the side surface of the top block close to the sliding block. The elastic member abuts against the sliding block.

[0012] Optionally, a motor seat is arranged in the pump housing. The motor seat is used to divide the pump housing into a first air chamber and a second air chamber. The first air chamber is communicated with the first air hole. The second air hole and the air supplement hole are respectively communicated with the second air chamber. The air charging and discharging blower, the air supplement blower and the opening valve driving member are all arranged on the motor seat.

[0013] Optionally, the opening valve driving member includes an opening valve motor and a connecting rod. The opening valve motor is arranged on the motor seat. The connecting rod is rotatably arranged on the motor seat, and one end of the connecting rod is connected to the output shaft of the opening valve motor, and the other end of the connecting rod is connected to the top column.

[0014] Optionally, the opening and closing assembly further includes a circuit board, a rotating rod, a driving gear and a driven gear. The circuit board is arranged in the pump housing. Two linkage switches are arranged on the circuit board. Both ends of the rotating rod are respectively rotatably connected to the circuit board and the motor seat. The driving gear is coaxially arranged on the connecting rod. The driven gear is coaxially arranged on the rotating rod, and the driven gear meshes with the driving gear. When the opening valve motor drives the rotating rod to rotate, the end of the rotating rod close to the circuit board presses at most one of the linkage switches.

[0015] Optionally, a plurality of buttons are provided on the pump housing, and a plurality of control switches are provided on the circuit board, and each of the buttons is in one-to-one correspondence and abuts against each of the control switches.

[0016] Optionally, a partition block is further provided in the pump housing, and the partition block is used to divide the second air chamber into a charging / discharging cavity and a supplementary air cavity. Both the charging / discharging cavity and the supplementary air cavity are communicated with the first air chamber. The charging / discharging cavity is communicated with the second air hole, and the supplementary air cavity is communicated with the supplementary air hole.

[0017] Optionally, the valve assembly further includes a sealing piece, and the sealing piece is slidably disposed on the inner side wall of the supplementary air hole.

[0018] Optionally, a wire storage chamber is further formed in the pump housing, and the wire storage chamber is used to accommodate electric wires, and a chamber cover is rotatably disposed at the opening of the wire storage chamber.

[0019] Compared with the prior art, the present utility model has at least the following advantages:

[0020] The valve is opened or closed by the opening and closing assembly, so that the aperture of the opened valve is consistent. Therefore, the inflation efficiency and the deflation efficiency are determined by the rotation speed of the charging / discharging fan. Further, when the air pressure in the inflated product decreases, a small amount of air is supplemented by the supplementary air fan, and there is no need to start the charging / discharging fan. Therefore, it can ensure that the inflated product is stably maintained within the specified air pressure range. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present utility model, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0022] Figure 1 FIG. is a schematic structural diagram of an electric drive valve charging / discharging pump according to an embodiment of the present utility model;

[0023] Figure 2 is Figure 1 a schematic cross-sectional structural diagram of the electric drive valve charging / discharging pump shown;

[0024] Figure 3 FIG. is a schematic structural diagram of a pump housing according to an embodiment of the present utility model;

[0025] Figure 4 FIG. is a partial structural schematic diagram of a valve assembly according to an embodiment of the present utility model;

[0026] Figure 5 is Figure 1Partial structural schematic diagram of the electric drive valve charging and discharging pump shown;

[0027] Figure 6 Structural schematic diagram of the top column of an embodiment of the present utility model;

[0028] Figure 7 Partial structural schematic diagram of the opening and closing assembly of an embodiment of the present utility model.

[0029] Explanation of reference numerals:

[0030] 10. Electric drive valve charging and discharging pump; 100. Charging and discharging assembly; 200. Valve assembly; 300. Opening and closing assembly; 110. Pump housing; 120. Charging and discharging fan; 130. Air supplement fan; 111. First air hole; 112. Second air hole; 113. Air supplement hole; 210. Guide frame; 220. Pressure plate; 230. Valve plate; 240. Elastic member; 310. Valve opening driving member; 320. Top column; 321. Closing push surface; 117. Pad edge; 3211. Flat push surface; 3212. Concave arc push surface; 211. Guide groove; 221. Slide block; 222. Top block; 140. Motor seat; 114. First air chamber; 115. Second air chamber; 311. Valve opening motor; 312. Connecting rod; 330. Circuit board; 340. Rotary rod; 350. Driving gear; 360. Driven gear; 370. Linkage switch; 150. Button; 160. Spacer; 1151. Charging and discharging cavity; 1152. Air supplement cavity; 250. Sealing piece; 116. Wire bin; 170. Bin cover. Detailed implementation manners

[0031] For the convenience of understanding the present utility model, the present utility model will be described more comprehensively below with reference to the relevant drawings. The preferred embodiments of the present utility model are shown in the drawings.

[0032] Such as Figures 1 to 5As shown in the figure, an electric drive valve charging and discharging pump 10 includes a charging and discharging assembly 100, a valve assembly 200 and an opening and closing assembly 300. The charging and discharging assembly 100 includes a pump housing 110, a charging and discharging fan 120 and a gas supplementing fan 130. A first air hole 111, a second air hole 112 and a gas supplementing hole 113 are formed in the pump housing 110. The second air hole 112 and the gas supplementing hole 113 are respectively communicated with the first air hole 111. The charging and discharging fan 120 and the gas supplementing fan 130 are both arranged in the pump housing 110, and the charging and discharging fan 120 is located between the first air hole 111 and the second air hole 112, and the gas supplementing fan 130 is located between the first air hole 111 and the gas supplementing hole 113. The valve assembly 200 includes a guide frame 210, a pressing plate 220, a valve plate 230 and an elastic member 240. The guide frame 210 is arranged on the inner side wall of the second air hole 112. The pressing plate 220 is slidably arranged in the guide frame 210. The valve plate 230 is arranged on the pressing plate 220. The elastic member 240 is respectively abutted against the pressing plate 220 and the guide frame 210. The elastic member 240 is used to push the pressing plate 220 so that the pressing plate 220 drives the valve plate 230 to approach the second air hole 112. The opening and closing assembly 300 includes an open valve driving member 310 and a top column 320. The open valve driving member 310 is arranged in the pump housing 110. The top column 320 is rotatably arranged in the pump housing 110, and one end of the top column 320 is connected to the output shaft of the open valve driving member 310. A closing push surface 321 is formed at the other end of the top column 320. When the open valve driving member 310 drives the top column 320 to rotate, the closing push surface 321 pushes the pressing plate 220 so that the valve plate 230 seals or moves away from the second air hole 112.

[0033] It should be noted that the charging and discharging assembly 100 is used to implement the normal inflation function, deflation function, and also the air replenishment function. Specifically, a first air hole 111 is opened at the top of the pump housing 110, and a second air hole 112 and an air replenishment hole 113 are opened at the bottom of the pump housing 110. The charging and discharging fan 120 and the air replenishment fan 130 are both installed in the pump housing 110. Among them, the charging and discharging fan 120 is located between the channels formed by the first air hole 111 and the second air hole 112, and the air replenishment fan 130 is located between the channels formed by the first air hole 111 and the air replenishment hole 113. In this way, when the charging and discharging fan 120 rotates forward, it drives the gas to flow into the pump housing 110 from the first air hole 111, and then flows out from the second air hole 112 after passing through the charging and discharging fan 120. When the charging and discharging fan 120 rotates in reverse, it drives the gas to flow into the pump housing 110 from the second air hole 112, and then flows out from the first air hole 111 after passing through the charging and discharging fan 120. In this way, the air pump has the inflation function and the deflation function. When the air pressure in the inflatable product decreases, the air replenishment fan 130 drives the gas to flow in from the first air hole 111, and then flows into the inflatable product from the air replenishment hole 113 after passing through the air replenishment fan 130. In this way, the air pump has the air replenishment function. It should be noted that the electric drive valve charging and discharging air pump 10 of the present application is used to be installed on the inflatable product. Among them, one side of the first air hole 111 communicates with the outside air, and the gasket edge 117 of the pump housing 110 is press-fitted and fixed with the inflatable product, so that the side of the pump housing 110 away from the first air hole 111 along the gasket edge 117 as the boundary is located inside the inflatable product. Therefore, a pressure sensor is installed on the side of the pump housing 110 located inside the inflatable product. In this way, when the pressure sensor detects that the air pressure in the inflatable product is lower than the preset value, the air replenishment fan 130 is started to replenish air.

[0034] Furthermore, the valve assembly 200 is used to close the second air hole 112. Specifically, the guide frame 210 is fixed on the inner side wall of the second air hole 112. It should be noted that the guide frame 210 is a hollow structure. The pressing plate 220 is slidably installed on the guide frame 210, so that the pressing plate 220 can slide relative to the guide frame 210 along the axial direction of the second air hole 112. The valve plate 230 is installed on the pressing plate 220, and the elastic member 240 abuts against the pressing plate 220 and the guide frame 210 respectively. For example, the elastic member 240 is a spring, and the elastic member 240 pushes the pressing plate 220, so that the pressing plate 220 drives the valve plate 230 to closely fit on the outer opening of the second air hole 112. In this way, when there is air pressure in the inflatable product, the air pressure will act on the pressing plate 220 in the opposite direction, so that the valve plate 230 reliably fits at the position of the pump housing 110 where the second air hole 112 is located. In this way, the second air hole 112 is sealed.

[0035] Further, the opening and closing component 300 is used to open the pressing plate 220, so that the second air hole 112 is opened. In this way, it is ensured that when the air charging and discharging fan 120 rotates forward smoothly, gas can be charged into the product, or when it rotates reversely, gas can be extracted from the product. Specifically, the valve opening driving member 310 is installed in the pump housing 110. One end of the ejector rod 320 is installed on the output shaft of the valve opening driving member 310, and a closing push surface 321 is provided at the other end of the ejector rod 320, wherein the closing push surface 321 has a special-shaped surface structure. In this way, as the valve opening driving member 310 drives the ejector rod 320 to rotate, the protruding part of the closing push surface 321 will push against the pressing plate 220, and the pressing plate 220 is pushed by the force to compress the elastic member 240, so that the pressing plate 220 drives the valve plate 230 away from the second air hole 112, that is, the second air hole 112 is in an open state. When the recessed part of the closing push surface 321 is aligned with the pressing plate 220, the pressing plate 220 is no longer pushed by the closing push surface 321. Therefore, under the elastic force of the elastic member 240, the pressing plate 220 drives the valve plate 230 to close the second air hole 112 again. In one embodiment, both the air charging and discharging fan 120 and the air supplementing fan 130 are brushless dust suction fans.

[0036] In this way, the opening and closing component 300 opens or closes the valve, so that the aperture of the opened valve is the same. Therefore, the air charging efficiency and the air discharging efficiency are determined by the rotation speed of the air charging and discharging fan 120. Further, when the air pressure in the inflated product decreases, micro air supplement is carried out through the air supplementing fan 130, and there is no need to start the air charging and discharging fan 120. Therefore, it can be ensured that the inflated product is stably maintained within the specified air pressure range.

[0037] As Figure 6 shown, in one embodiment, the closing push surface 321 includes two flat push surfaces 3211 and two concave arc push surfaces 3212, and the two concave arc push surfaces 3212 and the two flat push surfaces 3211 are connected end to end in sequence.

[0038] In this way, the closing surface structure formed by the two flat push surfaces 3211 and the two concave arc push surfaces 3212 is such that the two flat push surfaces 3211 protrude at the end of the ejector rod 320, and the two concave arc push surfaces 3212 are recessed at the end of the ejector rod 320. Therefore, the flat push surface 3211 will push against the pressing plate 220, while the concave arc push surface 3212 will avoid the pressing plate 220.

[0039] As Figure 3 and Figure 4 shown, in one embodiment, a guide groove 211 is provided in the guide frame 210. The pressing plate 220 includes a slider 221 and a top block 222. One end of the slider 221 is arranged on the top block 222, the slider 221 is slidably arranged in the guide groove 211, the valve plate 230 is arranged on the side surface of the top block 222 close to the slider 221, and the elastic member 240 abuts against the slider 221.

[0040] It should be noted that a right-angled structure is formed between the slider 221 and the top block 222. The slider 221 is slidably installed in the guiding groove 211, so that when the top block 222 approaches the second air hole 112, the valve plate 230 can be attached to seal the second air hole 112. In one embodiment, the slider 221 and the top block 222 are of an integrally formed structure.

[0041] As Figure 2 shown, in one embodiment, a motor seat 140 is arranged in the pump housing 110. The motor seat 140 is used to divide the interior of the pump housing 110 into a first air chamber 114 and a second air chamber 115. The first air chamber 114 is communicated with the first air hole 111, and the second air hole 112 and the air supplement hole 113 are respectively communicated with the second air chamber 115. The air charging and discharging blower 120, the air supplement blower 130 and the valve opening driving member 310 are all arranged on the motor seat 140.

[0042] It should be noted that, for the convenience of installing the air charging and discharging blower 120, the air supplement blower 130 and the valve opening driving member 310, a motor seat 140 is horizontally installed in the pump housing 110, and then the air charging and discharging blower 120, the air supplement blower 130 and the valve opening driving member 310 are installed on the motor seat 140 at intervals.

[0043] As Figure 2 and Figure 7 shown, in one embodiment, the valve opening driving member 310 includes a valve opening motor 311 and a connecting rod 312. The valve opening motor 311 is arranged on the motor seat 140. The connecting rod 312 is rotatably arranged on the motor seat 140, and one end of the connecting rod 312 is connected to the output shaft of the valve opening motor 311, and the other end of the connecting rod 312 is connected to the top column 320.

[0044] It should be noted that the valve opening motor 311 is installed on the motor seat 140, and the connecting rod 312 passes through the motor seat 140, so that the connecting rod 312 can rotate relative to the motor seat 140. The two ends of the connecting rod 312 are respectively connected to the output shaft of the valve opening motor 311 and the top column 320, so that the valve opening motor 311 drives the top column 320 to rotate through the connecting rod 312.

[0045] As Figure 2 、 Figure 5 and Figure 7As shown, in one embodiment, the opening and closing assembly 300 further includes a circuit board 330, a rotating rod 340, a driving gear 350, and a driven gear 360. The circuit board 330 is disposed within the pump housing 110. Two linkage switches 370 are provided on the circuit board 330. The two ends of the rotating rod 340 are respectively rotatably connected to the circuit board 330 and the motor base 140. The driving gear 350 is coaxially disposed on the connecting rod 312, and the driven gear 360 is coaxially disposed on the rotating rod 340. The driven gear 360 meshes with the driving gear 350. When the valve opening motor 311 drives the rotating rod 340 to rotate, the end of the rotating rod 340 close to the circuit board 330 presses at most one linkage switch 370.

[0046] It should be noted that the connecting rod 312 and the rotating rod 340 are connected by meshing of the driving gear 350 and the driven gear 360. Thus, when the valve opening motor 311 drives the connecting rod 312 to rotate, the connecting rod 312 drives the ejector pin 320 to rotate so that the second air hole 112 is opened. At the same time, the rotating rod 340 is driven to rotate to press one of the linkage switches 370. It should be noted that one of the two linkage switches 370 is used to control the forward rotation of the charging and discharging blower 120 for inflation, and the other is used to control the reverse rotation of the charging and discharging blower 120 for air extraction. When the machine stops, the rotating rod 340 does not press any linkage switch 370. Thus, the air pump is made more convenient to use.

[0047] As Figure 1 shown, in one embodiment, a plurality of buttons 150 are provided on the pump housing 110, and a plurality of control switches are provided on the circuit board 330. Each button 150 abuts against each control switch in one-to-one correspondence.

[0048] It should be noted that, for example, four buttons 150 are provided, and four control switches are provided. The four buttons 150 abut against the four control switches in one-to-one correspondence. In one embodiment, one of the control switches is used to control the reverse rotation of the charging and discharging blower 120, and the other three control switches are all used to control the forward rotation of the charging and discharging blower 120. The three control switches are used to respectively control the rotation speeds of the charging and discharging blower 120 during forward rotation, corresponding to low-speed rotation, medium-speed rotation, and high-speed rotation respectively. Thus, the user can select the specific rotation speed according to actual needs during use.

[0049] As Figure 2 shown, in one embodiment, a partition block 160 is further provided within the pump housing 110. The partition block 160 is used to divide the second air chamber 115 into a charging and discharging cavity 1151 and a supplementary air cavity 1152. The charging and discharging cavity 1151 and the supplementary air cavity 1152 are both communicated with the first air chamber 114. The charging and discharging cavity 1151 is communicated with the second air hole 112, and the supplementary air cavity 1152 is communicated with the supplementary air hole 113.

[0050] In this way, the charging and discharging blower 120 and the air supplementing blower 130 are respectively located in two independent air ducts. When inflating or deflating the product, it is completed by the high-power charging and discharging blower 120, and when supplementing air, it is completed by the air supplementing blower 130.

[0051] As Figure 2 shown, in an embodiment, the valve assembly 200 further includes a sealing piece 250, and the sealing piece 250 is slidably disposed on the inner side wall of the air supplementing hole 113. In this way, the airtightness of the air supplementing hole 113 can be improved, and the inflated product can be prevented from leaking from the air supplementing hole 113.

[0052] As Figure 1 and Figure 2 shown, in an embodiment, a wire bin 116 is further opened in the pump housing 110. The wire bin 116 is used for accommodating electric wires, and a bin cover 170 is rotatably disposed at the opening of the wire bin 116.

[0053] In this way, when the air pump is not in use, the power supply wire can be stored in the wire bin 116, and then the wire bin 116 is covered by the bin cover 170.

[0054] The above-described embodiments merely represent several implementation manners of the present invention, and the description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the utility model patent. Among them, the installation / fixing / setting described in the present invention can be understood as including but not limited to locking and fixing by using screws / screws and welding unless otherwise specifically defined. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the utility model patent shall be subject to the appended claims.

Claims

1. An electric drive valve charging and discharging air pump, characterized in that, Comprising: A charging and discharging assembly, the charging and discharging assembly includes a pump housing, a charging and discharging fan and a gas supplementing fan. The pump housing is provided with a first air hole, a second air hole and a gas supplementing hole. The second air hole and the gas supplementing hole are respectively communicated with the first air hole. The charging and discharging fan and the gas supplementing fan are both arranged in the pump housing, and the charging and discharging fan is located between the first air hole and the second air hole, and the gas supplementing fan is located between the first air hole and the gas supplementing hole; A valve assembly, the valve assembly includes a guide frame, a pressing plate, a valve piece and an elastic member. The guide frame is arranged on the inner side wall of the second air hole. The pressing plate is slidably arranged in the guide frame. The valve piece is arranged on the pressing plate. The elastic member is respectively abutted against the pressing plate and the guide frame. The elastic member is used to push the pressing plate so that the pressing plate drives the valve piece to approach the second air hole; and An opening and closing assembly, the opening and closing assembly includes an opening valve driving member and a top column. The opening valve driving member is arranged in the pump housing. The top column is rotatably arranged in the pump housing, and one end of the top column is connected to the output shaft of the opening valve driving member. The other end of the top column is provided with a closing push surface. When the opening valve driving member drives the top column to rotate, the closing push surface pushes the pressing plate so that the valve piece seals or moves away from the second air hole.

2. The electric drive valve charging and discharging air pump according to claim 1, wherein The closing push surface includes two flat push surfaces and two concave arc push surfaces, and the two concave arc push surfaces and the two flat push surfaces are sequentially connected end to end.

3. The electric drive valve charging and discharging air pump according to claim 1, characterized in that, A guide groove is arranged in the guide frame. The pressing plate includes a sliding block and a top block. One end of the sliding block is arranged on the top block. The sliding block is slidably arranged in the guide groove. The valve piece is arranged on the side surface of the top block close to the sliding block. The elastic member abuts against the sliding block.

4. The electric drive valve charging and discharging air pump according to claim 1, characterized in that, A motor seat is arranged in the pump housing. The motor seat is used to divide the pump housing into a first air chamber and a second air chamber. The first air chamber is communicated with the first air hole. The second air hole and the gas supplementing hole are respectively communicated with the second air chamber. The charging and discharging fan, the gas supplementing fan and the opening valve driving member are all arranged on the motor seat.

5. The electric drive valve charging and discharging air pump according to claim 4, characterized in that, The opening valve driving member includes an opening valve motor and a connecting rod. The opening valve motor is arranged on the motor seat. The connecting rod is rotatably arranged on the motor seat, and one end of the connecting rod is connected to the output shaft of the opening valve motor, and the other end of the connecting rod is connected to the top column.

6. The electric drive valve charging and discharging air pump according to claim 5, characterized in that, The opening and closing assembly further includes a circuit board, a rotating rod, a driving gear and a driven gear. The circuit board is arranged in the pump housing. Two linkage switches are arranged on the circuit board. The two ends of the rotating rod are respectively rotatably connected to the circuit board and the motor seat. The driving gear is coaxially arranged on the connecting rod. The driven gear is coaxially arranged on the rotating rod, and the driven gear meshes with the driving gear. When the opening valve motor drives the rotating rod to rotate, the end of the rotating rod close to the circuit board presses at most one of the linkage switches.

7. The electric drive valve charging and discharging air pump according to claim 6, wherein A plurality of buttons are arranged on the pump housing. A plurality of control switches are arranged on the circuit board. Each button is correspondingly abutted against each control switch.

8. The electric drive valve charging and discharging air pump according to claim 4, wherein, A partition block is further provided in the pump housing. The partition block is used to divide the second air chamber into a charging / discharging cavity and a gas supplementing cavity. Both the charging / discharging cavity and the gas supplementing cavity are communicated with the first air chamber. The charging / discharging cavity is communicated with the second air hole, and the gas supplementing cavity is communicated with the gas supplementing hole.

9. The electric drive valve charging and discharging air pump according to claim 8, characterized in that, The valve assembly further includes a sealing piece which is slidably arranged on the inner side wall of the gas supplementing hole.

10. The electric drive valve charging and discharging air pump according to claim 1, characterized in that, A wire storage chamber is further formed in the pump housing. The wire storage chamber is used to accommodate an electric wire, and a chamber cover is rotatably arranged at the opening of the wire storage chamber.

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