Inflation, deflation and exhaust three-in-one air pump

Abstract

The invention provides an inflation, deflation and exhaust three-in-one air pump, which relates to the technical field of air delivery pump structures, and comprises a bearing support, a bearing connecting rod, a bearing support frame, a butt joint carrying frame and a closed side frame, an assembly frame is fixedly mounted at the top of the bearing support; the bearing connecting rod is mounted on the inner side of the assembly frame; the bearing support frame is mounted on the inner side of the assembly side groove; the butt joint carrying frame is arranged on one side of the assembling frame. The closed side frame is arranged on the side face of the butt joint carrying frame. The bearing top frame is arranged at the top of the assembly frame; the first bottom valve and the second bottom valve are opened, and the first overhead valve and the second overhead valve are closed, so that gas is pumped into a target object, the first bottom valve and the second bottom valve are closed, the first overhead valve and the second overhead valve are opened, and gas on the inner side of the target object is released and extracted; the problem that a plurality of air pumps with air inflation and air exhaust functions in the market are provided with independent interfaces for air inflation and air exhaust, and users need to replace different interfaces in different use scenes is solved.

Description

Technical Field

[0001] The invention relates to the technical field of gas delivery pump structures, and in particular to a three-in-one air pump for inflating, deflation and exhaustion. Background Art

[0002] As a fluid conveying equipment widely used in industry, agriculture, medical treatment, life and other fields, the main function of air pumps is to provide compressed air or gas. With the rapid development of my country's economy, air pumps are used more and more widely in various industries, and the performance requirements for air pumps are also getting higher and higher.

[0003] Based on the above, there are many air pumps with inflation and exhaust functions on the market, but inflation and exhaust have independent interfaces. Different users need to replace different interfaces in different usage scenarios, which brings inconvenience to practical applications. There is a real need for a battery-powered product that can achieve inflation, deflation and exhaust at a specified pressure, and requires inflation, deflation and exhaust to share the same interface. Summary of the invention

[0004] In view of this, the present invention provides an air pump that can be inflated, deflated and exhausted in one, which has a bearing support, a bearing connecting rod, a bearing support frame, a docking bearing frame, a closed side frame, a bearing top frame and a bearing pillar, thereby solving the problem that many air pumps with inflation and exhaust functions on the market have independent interfaces, and different interfaces need to be replaced in different user scenarios, which brings inconvenience to practical applications. There is a real need for a product that is powered by a battery and can realize inflation, deflation at a specified air pressure and exhaust, and that requires inflation, deflation and exhaust to share the same interface.

[0005] The present invention provides an air pump capable of inflating, deflation and exhausting air in one, which specifically comprises: a bearing support, a bearing connecting rod, a bearing support frame, a docking bearing frame, a closed side frame, a bearing top frame and a bearing pillar;

[0006] An assembly frame is fixedly installed on the top of the bearing support, an assembly side groove is opened on one side of the assembly frame, a movable loading groove is opened on the other side of the assembly frame, an assembly pillar is fixedly arranged on the side of the bearing support, and a locking opening is opened on one end of the assembly pillar; the bearing connecting rod is fixedly installed on the inner side of the assembly frame, a closed support pad is fixedly installed on the side of the bearing connecting rod, reinforcement pillars are fixedly arranged on both sides of the bearing connecting rod, and a driving connecting rod is slidably arranged on the inner side of the bearing connecting rod; the bearing support frame is fixedly installed on the inner side of the assembly side groove, a driving support frame is fixedly arranged on the top of the bearing support frame, a rotating loading groove is opened on the side of the driving support frame, sliding support grooves are opened on both sides of the driving support frame, a rotating support shaft is rotatably arranged on the inner side of the rotating loading groove, and an eccentric shaft block is fixedly arranged on the top of the rotating support shaft; the docking frame is fixedly arranged on one side of the assembly frame A movable connecting groove is provided on one side of the docking carrier frame, an assembly slot is provided on the outer side of the docking carrier frame, a fixed loading slot is provided on the other side of the docking carrier frame, and air inlet plugs and air outlet plugs are fixedly arranged on both sides of the docking carrier frame; the closed side frame is fixedly arranged on the side of the docking carrier frame, and an air outlet slot and an air inlet slot are provided on the side of the closed side frame, and a locking bolt is fixedly arranged on the side of the closed side frame; the load-bearing top frame is fixedly arranged on the top of the assembly frame, and a first valve body and a second valve body are fixedly installed on the side of the load-bearing top frame, and an assembly load column is fixedly installed on the side of the load-bearing top frame; the load-bearing pillar is fixedly installed on one end of the assembly load column, a load-bearing slot is provided on the side of the load-bearing pillar, a delivery branch pipe is fixedly arranged on the inner side of the load-bearing slot, an air pressure sensor is fixedly arranged on the bottom end of the delivery branch pipe, and a delivery joint is fixedly arranged on the top end of the delivery branch pipe.

[0007] In at least some embodiments, the top of the bearing support is further provided with: an assembly support frame and a drive motor;

[0008] The assembly support frame is fixedly installed on the top of the bearing support; the drive motor is fixedly arranged on the inner side of the assembly support frame; the drive motor can be fixedly supported by the assembly support frame.

[0009] In at least some embodiments, the outer side of the driving connecting rod is further provided with: a piston pressure plate and a diaphragm piston;

[0010] The piston pressure plate is fixedly arranged at one end of the driving connecting rod; the diaphragm piston is sleeved on the outside of the driving connecting rod, and the diaphragm piston is fixedly arranged on the movable carrier; the diaphragm piston is driven by the piston pressure plate to deform to carry out gas transmission.

[0011] In at least some embodiments, the outer side of the eccentric shaft block is further provided with: a rotating support ring, a push-pull support ring, a limiting support pillar and a driving support pillar;

[0012] The rotating support ring is rotatably sleeved on the outside of the eccentric shaft block; the push-pull support ring is rotatably sleeved on the outside of the rotating support ring; the limiting pillar and the driving pillar are fixedly installed on both sides of the push-pull support ring; the eccentric shaft block can drive the rotating support ring to rotate eccentrically, so that the eccentric shaft block cooperates with the rotating support ring to drive the push-pull support ring to move back and forth, and the limiting pillar cooperates with the driving pillar to limit and guide the push-pull support ring to move back and forth.

[0013] In at least some embodiments, the side of the docking carrier frame is further provided with: a dustproof sponge pad and a sealing rubber ring;

[0014] The dustproof sponge pad is arranged at one end of the air inlet rubber plug; the closed rubber ring is fixedly arranged at the inner side of the fixed loading groove; the dustproof sponge pad can filter and protect the air inlet rubber plug, and the closed rubber ring can ensure the stable closed docking between the docking carrier frame and the closed side frame.

[0015] In at least some embodiments, the closed side frame is further provided with: an air outlet pipe and an air inlet pipe;

[0016] The air outlet pipe is fixedly installed on the inner side of the air outlet slot; the air inlet pipe is fixedly installed on the inner side of the air inlet slot; the air pump is driven to inflate, deflate and evacuate air by cooperating with the air outlet pipe.

[0017] In at least some embodiments, the side of the first valve body is further provided with: a first bottom valve, a first connecting pipe and a first top valve;

[0018] The first bottom valve is fixedly arranged at the bottom of the first valve body; the first connecting pipe is fixedly installed at the top of the first bottom valve; and the first top valve is fixedly arranged at the top of the first connecting pipe.

[0019] In at least some embodiments, the side surface of the second valve body is further provided with: a second bottom valve, a second connecting pipe and a second top valve;

[0020] The second bottom valve is fixedly arranged at the bottom of the second valve body; the second connecting pipe is fixedly installed at the top of the second valve body; and the second top valve is fixedly arranged at the top of the second connecting pipe.

[0021] In at least some embodiments, the side of the delivery branch pipe is further provided with: an outlet side pipe and an inlet side pipe;

[0022] The air outlet side pipe is fixedly arranged on one side of the delivery branch pipe; the air inlet side pipe is fixedly arranged on the other side of the delivery branch pipe; the gas can be transported and guided by cooperating with the air outlet side pipe.

[0023] The present invention provides an air pump that can be used for inflation, deflation and extraction, which has the following features:

[0024] Beneficial Effects

[0025] The present invention is provided with a bearing support, a bearing connecting rod, a bearing support frame, a docking bearing frame, a closed side frame, a bearing top frame and a bearing support pillar. The air pump is connected to a target object that requires gas delivery through a delivery joint and a delivery pipe. The driving motor drives the rotating support shaft to rotate, so that the eccentric shaft block cooperates with the rotating support ring to drive the push-pull support ring to move. The push-pull support ring is pushed and pulled reciprocatingly through the support of the limiting pillar and the driving pillar, and the driving pillar drives the driving connecting rod to move reciprocatingly. The piston pressure plate supports the diaphragm piston to pump the gas. When the target object does not require additional operation, the first top valve and the second bottom valve are closed to disconnect the pump body and the target object, so that the gas is stably filled with the inside of the target object. When the target object needs to be inflated, the first bottom valve and the second bottom valve are opened, and the first top valve and the second top valve are closed. , the driving motor drives the diaphragm piston in the pump body, so that the diaphragm piston draws gas into the air pump through the first valve body and the first bottom valve, and then pumps the extracted gas into the target object through the second valve body and the second bottom valve. When the target object needs to be deflated, the first bottom valve and the second bottom valve are closed, and the first top valve and the second top valve are opened, so that the gas inside the target object slowly enters the inner side of the pump body through the first top valve and the first valve body, and the gas entering the inner side of the pump body is discharged through the second top valve and the second valve body. When the target object needs to be exhausted, the valve body is the same as the setting when the target object needs to be deflated, but the driving motor drives the diaphragm piston in the pump body, and further assists in accelerating the extraction while the target object is deflated autonomously, so that the air pump can realize inflation, deflation, and exhaust using the same interface to operate the target object. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.

[0027] The drawings described below are only related to some embodiments of the present invention, but are not intended to limit the present invention.

[0028] In the attached picture:

[0029] Figure 1 It shows a schematic structural diagram of the front view of the assembly arrangement of the overall components of the air pump according to an embodiment of the present invention;

[0030] Figure 2 It shows a schematic structural diagram of the side view of the assembly arrangement of the overall components of the air pump according to an embodiment of the present invention;

[0031] Figure 3 It shows a schematic structural diagram of the assembly and disassembly arrangement of the whole components of the bearing support according to an embodiment of the present invention;

[0032] Figure 4 It shows a structural schematic diagram of the assembly and disassembly arrangement of the whole component of the load-bearing connecting rod according to an embodiment of the present invention;

[0033] Figure 5 It shows a structural schematic diagram of the assembly and disassembly arrangement of the whole components of the bearing support frame according to an embodiment of the present invention;

[0034] Figure 6 It shows a structural schematic diagram of the main view of the assembly and disassembly arrangement of the integral components of the docking carrier frame according to an embodiment of the present invention;

[0035] Figure 7 It shows a schematic structural diagram of a side view of the assembly and disassembly arrangement of the integral components of the docking carrier frame according to an embodiment of the present invention;

[0036] Figure 8 It shows a schematic structural diagram of the side view of the assembly and disassembly arrangement of the closed side frame integral components according to an embodiment of the present invention;

[0037] Fig. 9 It shows a schematic structural diagram of the assembly and disassembly arrangement of the integral components of the load-bearing top frame according to an embodiment of the present invention;

[0038] Fig.10 A schematic structural diagram of the assembly and disassembly arrangement of the integral components of the load-bearing pillar according to an embodiment of the present invention is shown.

[0039] Reference numerals list

[0040] 1. Bearing support;

[0041] 101, assembly support frame; 102, driving motor; 103, assembly frame; 104, assembly side groove; 105, movable loading groove; 106, assembly support column; 107, locking opening;

[0042] 2. Load-bearing connecting rod;

[0043] 201, closed support pad; 202, reinforcement support; 203, driving connecting rod; 204, piston pressure plate; 205, diaphragm piston;

[0044] 3. Load-bearing frame;

[0045] 301, driving support frame; 302, rotating loading slot; 303, sliding support slot; 304, rotating support shaft; 305, eccentric shaft block; 306, rotating support ring; 307, push-pull support ring; 308, limiting support pillar; 309, driving support pillar;

[0046] 4. Docking frame;

[0047] 401, movable connection slot; 402, assembly slot; 403, fixed loading slot; 404, air inlet rubber plug; 405, air outlet rubber plug; 406, dustproof sponge pad; 407, sealing rubber ring;

[0048] 5. Close the side frame;

[0049] 501, air outlet slot; 502, air inlet slot; 503, locking bolt; 504, air outlet pipe; 505, air inlet pipe;

[0050] 6. Carrying top frame;

[0051] 601, first valve body; 602, first bottom valve; 603, first connecting pipe; 604, first top valve; 605, second valve body; 606, second bottom valve; 607, second connecting pipe; 608, second top valve; 609, assembly column;

[0052] 7. Load-bearing pillars;

[0053] 701, bearing card slot; 702, delivery branch pipe; 703, air pressure sensor; 704, delivery joint; 705, air outlet side pipe; 706, air inlet side pipe. DETAILED DESCRIPTION

[0054] Example: Please refer to Figures 1 to 10 :

[0055] The present invention proposes an air pump capable of inflating, deflation and exhaustion in one, comprising: a bearing support 1, a bearing connecting rod 2, a bearing support frame 3, a docking bearing frame 4, a closed side frame 5, a bearing top frame 6 and a bearing support column 7;

[0056] An assembly frame 103 is fixedly installed on the top of the bearing support 1, an assembly side groove 104 is opened on one side of the assembly frame 103, and a movable loading groove 105 is opened on the other side of the assembly frame 103. An assembly pillar 106 is fixedly installed on the side of the bearing support 1, and a locking opening 107 is opened at one end of the assembly pillar 106; the bearing connecting rod 2 is fixedly installed on the inner side of the assembly frame 103, a closed support pad 201 is fixedly installed on the side of the bearing connecting rod 2, and reinforcement pillars 202 are fixedly installed on both sides of the bearing connecting rod 2. A driving connecting rod 203 is slidably arranged inside the bearing connecting rod 2; the bearing supporting frame 3 is fixedly installed inside the assembly side groove 104, a driving supporting frame 301 is fixedly arranged on the top of the bearing supporting frame 3, a rotating bearing groove 302 is opened on the side of the driving supporting frame 301, sliding supporting grooves 303 are opened on both sides of the driving supporting frame 301, a rotating support shaft 304 is rotatably arranged inside the rotating bearing groove 302, and an eccentric shaft block 305 is fixedly arranged on the top of the rotating support shaft 304; the docking bearing frame 4 is fixedly arranged on the assembly frame 103 On one side, a movable connection groove 401 is opened on one side of the docking carrier frame 4, an assembly slot 402 is opened on the outer side of the docking carrier frame 4, a fixed loading groove 403 is opened on the other side of the docking carrier frame 4, and an air inlet rubber plug 404 and an air outlet rubber plug 405 are fixedly arranged on both sides of the docking carrier frame 4; the closed side frame 5 is fixedly arranged on the side of the docking carrier frame 4, and an air outlet slot 501 and an air inlet slot 502 are opened on the side of the closed side frame 5, and a locking bolt 503 is fixedly arranged on the side of the closed side frame 5; the load-bearing top frame 6 is fixedly arranged on the mounting At the top of the supporting frame 103, the first valve body 601 and the second valve body 605 are fixedly installed on the side of the supporting top frame 6, and the assembly support column 609 is fixedly installed on the side of the supporting top frame 6; the supporting pillar 7 is fixedly installed at one end of the assembly support column 609, and a supporting slot 701 is opened on the side of the supporting pillar 7, a delivery branch pipe 702 is fixedly installed on the inner side of the bearing slot 701, an air pressure sensor 703 is fixedly installed at the bottom end of the delivery branch pipe 702, and a delivery joint 704 is fixedly installed at the top end of the delivery branch pipe 702.

[0057] Embodiment 1: Figures 3 to 10As shown, the closed side frame 5 is also provided with: an air outlet pipe 504 and an air inlet pipe 505 on both sides; the air outlet pipe 504 is fixedly installed on the inner side of the air outlet slot 501; the air inlet pipe 505 is fixedly installed on the inner side of the air inlet slot 502; the first valve body 601 is also provided with: a first bottom valve 601, a first pipe 603 and a first top valve 603 on the side; the first bottom valve 601 is fixedly installed on the bottom of the first valve body 601; the first pipe 603 is fixedly installed on the top of the first bottom valve 601; the first top valve 603 is fixedly installed on the top of the first pipe 603; the second valve body 605 is also provided with: a second bottom valve 606, a second pipe Tube 607 and a second top valve 608; a second bottom valve 606 is fixedly arranged at the bottom of the second valve body 605; a second connecting pipe 607 is fixedly installed at the top of the second valve body 605; a second top valve 608 is fixedly arranged at the top of the second connecting pipe 607; the side of the delivery branch pipe 702 is also provided with: an outlet side pipe 705 and an inlet side pipe 706; the outlet side pipe 705 is fixedly arranged on one side of the delivery branch pipe 702; the inlet side pipe 706 is fixedly arranged on the other side of the delivery branch pipe 702; the gas is guided separately by cooperating with the inlet side pipe 706, so that the pump body can be inflated, deflated, and exhausted for stable transfer and delivery.

[0058] Embodiment 2: Based on Embodiment 1, Figures 2 to 9 As shown, the top of the bearing support 1 is also provided with: an assembly frame 101 and a driving motor 102; the assembly frame 101 is fixedly installed on the top of the bearing support 1; the driving motor 102 is fixedly arranged on the inner side of the assembly frame 101; the outer side of the driving connecting rod 203 is also provided with: a piston pressure plate 204 and a diaphragm piston 205; the piston pressure plate 204 is fixedly arranged at one end of the driving connecting rod 203; the diaphragm piston 205 is sleeved on the outer side of the driving connecting rod 203, and the diaphragm piston 205 is fixedly arranged on the movable load; the outer side of the eccentric shaft block 305 is also provided with: a rotating support ring 306, a push-pull support ring 307, a limit support pillar 308 and a driving support Column 309; the rotating support ring 306 is rotatably sleeved on the outside of the eccentric shaft block 305; the push-pull support ring 307 is rotatably sleeved on the outside of the rotating support ring 306; the limiting pillar 308 and the driving pillar 309 are fixedly installed on both sides of the push-pull support ring 307; the side of the docking frame 4 is also provided with: a dustproof sponge pad 406 and a closed rubber ring 407; the dustproof sponge pad 406 is arranged at one end of the air inlet plug 404; the closed rubber ring 407 is fixedly arranged on the inside of the fixed loading groove 403; the rotating support ring 306 can drive the push-pull support ring 307 to perform reciprocating push and pull for positioning, so that the piston pressure plate 204 drives the diaphragm piston 205 to transport gas.

[0059] Specific usage and function of this embodiment: In the present invention, when in use, the air pump is connected to the target object that needs gas delivery through the delivery joint 704 and the delivery pipe, and the driving motor 102 drives the rotating support shaft 304 to rotate, so that the eccentric structure of the eccentric shaft block 305 drives the push-pull support ring 307 to push and pull reciprocatingly, so that the driving support pillar 309 drives the driving connecting rod 203 to move reciprocatingly, and the piston pressure plate 204 supports the diaphragm piston 205 to pump the gas, and the first valve body 601 and the second valve body 605 cooperate to enable the target object to be inflated, deflated, and evacuated.

Claims

1. An air pump capable of inflating, deflation and exhausting air, comprising: A bearing support (1), a bearing connecting rod (2), a bearing support frame (3), a docking bearing frame (4), a closed side frame (5), a bearing top frame (6) and a bearing pillar (7); The top of the bearing support (1) is fixedly installed with an assembly frame (103), one side of the assembly frame (103) is provided with an assembly side groove (104), the other side of the assembly frame (103) is provided with a movable loading groove (105), the side of the bearing support (1) is fixedly provided with an assembly pillar (106), one end of the assembly pillar (106) is provided with a locking opening (107); it is characterized in that the bearing connecting rod (2) is fixedly installed on the inner side of the assembly frame (103), the side of the bearing connecting rod (2) is fixedly installed with a closed support pad (201), and both sides of the bearing connecting rod (2) are fixedly provided with reinforcement pillars ( 202), a driving connecting rod (203) is slidably arranged inside the bearing connecting rod (2); the bearing support frame (3) is fixedly installed inside the assembly side groove (104), a driving support frame (301) is fixedly arranged on the top of the bearing support frame (3), a rotating bearing groove (302) is opened on the side of the driving support frame (301), sliding support grooves (303) are opened on both sides of the driving support frame (301), a rotating support shaft (304) is rotatably arranged inside the rotating bearing groove (302), and an eccentric shaft block (305) is fixedly arranged on the top of the rotating support shaft (304); the docking frame (4) is fixedly arranged on the assembly frame (1 03) side, a movable connection groove (401) is provided on one side of the docking carrier frame (4), an assembly slot (402) is provided on the outer side of the docking carrier frame (4), a fixed loading groove (403) is provided on the other side of the docking carrier frame (4), and air inlet rubber plugs (404) and air outlet rubber plugs (405) are fixedly provided on both sides of the docking carrier frame (4); the closed side frame (5) is fixedly provided on the side of the docking carrier frame (4), an air outlet slot (501) and an air inlet slot (502) are provided on the side of the closed side frame (5), and a locking bolt (503) is fixedly provided on the side of the closed side frame (5); the load-bearing top frame (6) is fixedly provided Placed on the top of the assembly frame (103), the first valve body (601) and the second valve body (605) are fixedly installed on the side of the bearing top frame (6), and the assembly support column (609) is fixedly installed on the side of the bearing top frame (6); the bearing support column (7) is fixedly installed on one end of the assembly support column (609), and a bearing slot (701) is opened on the side of the bearing support column (7), and a delivery branch pipe (702) is fixedly installed on the inner side of the bearing slot (701), and an air pressure sensor (703) is fixedly installed at the bottom end of the delivery branch pipe (702), and a delivery joint (704) is fixedly installed at the top end of the delivery branch pipe (702).

2. The three-in-one air pump for inflation, deflation and extraction according to claim 1, characterized in that: The top of the bearing support (1) is also provided with: an assembly support frame (101) and a driving motor (102); The assembly support frame (101) is fixedly mounted on the top of the bearing support (1); and the driving motor (102) is fixedly arranged on the inner side of the assembly support frame (101).

3. The three-in-one air pump for inflation, deflation and extraction according to claim 1, characterized in that: The outer side of the driving connecting rod (203) is also provided with: a piston pressure plate (204) and a diaphragm piston (205); The piston pressure plate (204) is fixedly arranged at one end of the driving connecting rod (203); the diaphragm piston (205) is sleeved on the outside of the driving connecting rod (203), and the diaphragm piston (205) is fixedly arranged on the inside of the movable loading groove (105), and one side of the diaphragm piston (205) is fixedly connected to the piston pressure plate (204).

4. The three-in-one air pump for inflation, deflation and extraction according to claim 1, characterized in that: The outer side of the eccentric shaft block (305) is also provided with: a rotating support ring (306), a push-pull support ring (307), a limiting support pillar (308) and a driving support pillar (309); The rotating support ring (306) is rotatably sleeved on the outside of the eccentric shaft block (305); the push-pull support ring (307) is rotatably sleeved on the outside of the rotating support ring (306); and the limiting pillars (308) and the driving pillars (309) are fixedly installed on both sides of the push-pull support ring (307).

5. The three-in-one air pump for inflation, deflation and extraction according to claim 1, characterized in that: The side surface of the docking carrier frame (4) is also provided with: a dustproof sponge pad (406) and a sealing rubber ring (407); The dustproof sponge pad (406) is arranged at one end of the air inlet rubber plug (404); and the sealing rubber ring (407) is fixedly arranged inside the fixed loading groove (403).

6. The three-in-one air pump for inflation, deflation and extraction according to claim 1, characterized in that: The closed side frame (5) is also provided with: an air outlet pipe (504) and an air inlet pipe (505) on both sides; The air outlet pipe (504) is fixedly installed on the inner side of the air outlet slot (501); and the air inlet pipe (505) is fixedly installed on the inner side of the air inlet slot (502).

7. The three-in-one air pump for inflation, deflation and extraction according to claim 1, characterized in that: The side of the first valve body (601) is also provided with: a first bottom valve (601), a first connecting pipe (603) and a first top valve (603); The first bottom valve (601) is fixedly arranged at the bottom of the first valve body (601); the first connecting pipe (603) is fixedly installed at the top of the first bottom valve (601); and the first top valve (603) is fixedly arranged at the top of the first connecting pipe (603).

8. The three-in-one air pump for inflation, deflation and extraction according to claim 1, characterized in that: The side of the second valve body (605) is also provided with: a second bottom valve (606), a second connecting pipe (607) and a second top valve (608); The second bottom valve (606) is fixedly arranged at the bottom of the second valve body (605); the second connecting pipe (607) is fixedly installed at the top of the second valve body (605); and the second top valve (608) is fixedly arranged at the top of the second connecting pipe (607).

9. The three-in-one air pump for inflation, deflation and extraction according to claim 1, characterized in that: The side of the delivery branch pipe (702) is also provided with: an air outlet side pipe (705) and an air inlet side pipe (706); The air outlet side pipe (705) is fixedly arranged on one side of the delivery branch pipe (702); and the air inlet side pipe (706) is fixedly arranged on the other side of the delivery branch pipe (702).

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