Double-end air pump with air paths connected in series

Abstract

The utility model provides a double-head air pump with air paths connected in series, which comprises a driving part, two driving end parts of the driving part are respectively connected with a first branch pump body and a second branch pump body, the first branch pump body is provided with a first air inlet and a first air outlet and is internally provided with a first booster cavity, and the second branch pump body is provided with a second air inlet and a second air outlet and is internally provided with a second booster cavity. A second pressurizing cavity is formed in the shell; the second air inlet communicates with the first air outlet, the first pressurizing cavity is larger than the second pressurizing cavity, and a buffering cavity is further formed between the first pressurizing cavity and the second pressurizing cavity. The driving part drives the two pump bodies at the same time to form the double-end air pump, kinetic energy of the driving part can be utilized to the maximum extent, occupied space is reduced, better applicability is achieved, the air pressure output by the double-end air pump is increased by connecting an air channel of the first branch pump body and an air channel of the second branch pump body in series, meanwhile, the buffering cavity is arranged to be used for reducing air flow fluctuation, and the service life of the double-end air pump is prolonged. The output airflow is more stable, and the influence on the air pressure caused by asynchronous work of the two branch pump bodies can be reduced.

Description

Technical Field

[0001] The present application relates to the technical field of air pumps, and in particular to a double-head air pump with series air circuits. Background Art

[0002] An air pump is a device that extracts air from a space or adds air to a space. Traditional air pumps are composed of a motor and a single pump body. When the gas pressure of a single output cannot meet the application requirements, two air pumps are often connected in series to increase the final output gas pressure. Using two air pumps at the same time not only takes up a large space and has poor adaptability, but the direct series connection will also cause the output gas to fluctuate greatly and be unstable. Utility Model Content

[0003] The purpose of this application is to address the above problems and provide a double-head air pump with serial air circuits, comprising:

[0004] a driving member having two driving ends;

[0005] a first sub-pump body, wherein the first sub-pump body is provided with at least one first air inlet and at least one first air outlet, and has at least one first pressurizing chamber therein;

[0006] a second sub-pump body, wherein the second sub-pump body is provided with at least one second air inlet and at least one second air outlet, and has at least one second boosting chamber therein; the second air inlet is correspondingly connected to the first air outlet, the volume of the first boosting chamber is larger than the volume of the second boosting chamber, and a buffer chamber is further provided between the first boosting chamber and the second boosting chamber;

[0007] The first sub-pump body and the second sub-pump body are respectively arranged on both sides of the driving member and are transmission-connected to different driving ends. The driving member is used to simultaneously drive the first sub-pump body and the second sub-pump body, so that the gas enters the first boosting chamber through the first air inlet, is pressurized, and then is output to the buffer chamber, and then enters the second boosting chamber from the buffer chamber, is pressurized, and is then output from the second air outlet.

[0008] and a tube connecting the discharging opening of the inlet and the outlet port, and the tube connecting the discharging opening of the inlet and the outlet port is connected with the tube connecting the discharging opening of the inlet and the outlet port.

[0009] According to the technical solution provided in certain embodiments of the present application, the first air inlet is opened on the first cover body, the first air outlet is opened on the first base, the second air inlet is opened on the second base, the second air outlet is opened on the second cover body, and the buffer chamber is formed between the second pump body mechanism and the second base.

[0010] According to the technical solution provided in certain embodiments of the present application, a first air outlet path is connected between the first boost chamber and the first air outlet, and a second air inlet path is connected between the second air inlet and the second boost chamber; the first air inlet is opened on the first base, the free end of the first air outlet path extends out of the first cover body and is provided with the first air outlet, the free end of the second air inlet path extends out of the second cover body and is provided with the second air inlet, the second air outlet is opened on the second cover body, and the buffer chamber is formed between the first pump body mechanism and the first cover body.

[0011] According to the technical solution provided in certain embodiments of the present application, the first air outlet is connected to the second air inlet through an air pipe.

[0012] According to the technical solutions provided in certain embodiments of the present application, at least one of the first air outlets is connected to at least one of the second air inlet via an air pipe, and at least one of the first air outlets is connected to the outside.

[0013] According to the technical solution provided in certain embodiments of the present application, the driving member includes a shell, a rotor is provided in the shell, a driving shaft is passed through and fixed on the rotor, and both ends of the driving shaft extend along a first direction and pass through the shell to form the driving end portion; the shell is respectively provided with a first through hole and a second through hole on both sides along the first direction, the first through hole is connected to the first air outlet, and the second through hole is connected to the second air inlet.

[0014] According to the technical solutions provided in certain embodiments of the present application, a third through hole is further provided on the housing.

[0015] According to the technical solution provided in certain embodiments of the present application, the first pump body mechanism and the second pump body mechanism have the same structure, both including a torsion shaft, the two torsion shafts are respectively fixed on the two driving ends, the torsion shaft is rotatably connected to a wobble plate, the wobble plate is connected to a boost assembly, and the boost assembly is further provided with an air distribution assembly on the side away from the wobble plate, the first boost chamber or the second boost chamber is formed between the air distribution assembly and the boost assembly, the air distribution assembly is used to make the first air inlet, the first boost chamber and the first air outlet connected in one direction in sequence, and is also used to make the second air inlet, the second boost chamber and the second air outlet connected in one direction in sequence.

[0016] According to the technical solutions provided in certain embodiments of the present application, the two torsion shafts are arranged in the same direction or in opposite directions on both sides of the driving member.

[0017] 14. The air intake control unit of claim 13, wherein the first and second air intake ports are connected to the air intake ducts of the second air intake valve, the second air intake ducts being connected to the air intake ducts of the second air intake valve. After being compressed, it is output to the buffer chamber, and then the buffer chamber enters the second boosting chamber for boosting and then is output from the second air outlet; a driving member with dual driving ends simultaneously drives the first sub-pump body and the second sub-pump body to form a double-headed air pump. Compared with the traditional air pump with only a single pump body, the double-headed air pump can maximize the use of the kinetic energy of the driving member, reduce the occupied space, and make the double-headed air pump have better applicability. By setting a first boosting chamber with a larger volume in the first sub-pump body, the first air outlet is connected to the second air inlet, and the air path of the first sub-pump body and the air path of the second sub-pump body are connected in series, thereby increasing the air pressure output by the double-headed air pump, and at the same time setting a buffer chamber to reduce airflow fluctuations, making the output airflow more stable, and also reducing the impact of the asynchronous operation of the two sub-pump bodies on the air pressure.

[0018] It should be understood that the description of technical features, technical solutions, beneficial effects or similar language in this application does not imply that all features and advantages can be realized in any single embodiment. On the contrary, it is understood that the description of a feature or beneficial effect means that a specific technical feature, technical solution or beneficial effect is included in at least one embodiment. Therefore, the description of a technical feature, technical solution or beneficial effect in this specification does not necessarily refer to the same embodiment. Furthermore, the technical features, technical solutions and beneficial effects described in the present embodiment can also be combined in any appropriate manner. Those skilled in the art will understand that the embodiment can be implemented without one or more specific technical features, technical solutions or beneficial effects of a specific embodiment. In other embodiments, additional technical features and beneficial effects can also be identified in specific embodiments that do not embody all embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 A schematic structural diagram of a double-head air pump with serial air circuits provided in an embodiment of the present application;

[0021] Figure 2 A side view of a double-head air pump with a series air circuit provided in an embodiment of the present application having a second air outlet;

[0022] Figure 3 A side view of a double-head air pump with two second air outlets and a series air circuit provided in an embodiment of the present application;

[0023] Figure 4 An exploded view of a double-head air pump with serial air circuits provided in an embodiment of the present application;

[0024] Figure 5 A side cross-sectional view of a double-head air pump with a series air circuit provided in an embodiment of the present application, wherein the first sub-pump body and the second sub-pump body have the same overall air circuit direction and have a second air outlet;

[0025] Figure 6 A side cross-sectional view of a double-head air pump with air circuits in series provided in an embodiment of the present application, wherein the first sub-pump body and the second sub-pump body have the same overall air circuit direction and have two second air outlets;

[0026] Figure 7 A side cross-sectional view of a double-head air pump with air circuits in series provided in an embodiment of the present application, wherein the first sub-pump body and the second sub-pump body have the same overall air circuit direction and have two first air outlets;

[0027] Figure 8 A side sectional view of a double-head air pump with series air circuits provided in an embodiment of the present application, wherein the air circuit is externally located;

[0028] Figure 9 and Figure 10 A side cross-sectional view of a double-head air pump with serial air paths provided in an embodiment of the present application, wherein the air path passes through the interior of a driving member;

[0029] Figure 11 This is a side sectional view of a double-head air pump with air circuits in series provided in an embodiment of the present application, in which the first and second sub-pump bodies have the same overall air circuit direction and have a second air outlet and an external buffer chamber.

[0030] The text annotations in the figure represent:

[0031] 1. First sub-pump body; 2. Second sub-pump body; 3. Driving member; 11. First base; 12. First cover; 21. Second base; 22. Second cover; 31. Torsion shaft; 32. Swing plate; 33. Boosting assembly; 34. Fixing seat; 35. Air distribution cushion; 36. Upper air distribution layer; 37. Lower air distribution layer; 38. Umbrella nail; 39. Clip; 40. Housing; 41. Rotor; 42. Driving shaft; 101. First air inlet; 102. First air outlet; 103. First boosting chamber; 201. Second air inlet; 202. Second air outlet; 203. Second boosting chamber; 301. Air pipe; 302. Third through hole; 303. Buffer chamber; 331. Leather cup. DETAILED DESCRIPTION

[0032] In order to enable those skilled in the art to better understand the technical solutions of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings. The description in this section is only exemplary and explanatory and should not have any limiting effect on the scope of protection of the present application. Specifically, the embodiments described are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work should fall within the scope of protection of the present invention.

[0033] It should be noted that similar reference numerals and letters represent similar items in the following figures. Therefore, once an item is defined in one figure, it does not need to be further defined or explained in subsequent figures. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus that includes a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units that are not explicitly listed or inherent to these processes, methods, products or apparatuses.

[0034] As mentioned in the background technology, in order to solve the problems in the prior art, this embodiment provides a double-head air pump with serially connected air circuits, which is characterized by comprising:

[0035] A driving member 3, the driving member 3 having two driving ends;

[0036] The first sub-pump body 1 is provided with at least one first air inlet 101 and at least one first air outlet 102, and has at least one first pressurizing chamber 103 therein;

[0037] The second sub-pump body 2 is provided with at least one second air inlet 201 and at least one second air outlet 202, and has at least one second boosting chamber 203 therein; the second air inlet 201 is correspondingly connected to the first air outlet 102, the volume of the first boosting chamber 103 is larger than the volume of the second boosting chamber 203, and a buffer chamber 303 is further provided between the first boosting chamber 103 and the second boosting chamber 203;

[0038] The first sub-pump body 1 and the second sub-pump body 2 are respectively arranged on both sides of the driving member 3 and are connected to different driving ends. The driving member 3 is used to simultaneously drive the first sub-pump body 1 and the second sub-pump body 2, so that the gas enters the first boosting chamber 103 through the first air inlet 101, is pressurized, and then output to the buffer chamber 303, and then enters the second boosting chamber 203 from the buffer chamber 303, is pressurized, and is then output from the second air outlet 202.

[0039] like Figure 1-3 As shown, the driving member 3 adopts a double-output shaft motor for providing torque and speed for the first sub-pump body 1 and the second sub-pump body 2. The first sub-pump body 1 and the second sub-pump body 2 are respectively arranged on both sides of the driving member 3. The first sub-pump body 1 is provided with at least one first air inlet 101 and at least one first air outlet 102, and the second sub-pump body 2 is provided with at least one second air inlet 201 and at least one second air outlet 202. The first boosting chamber 103 can be contracted or expanded to allow gas to be sucked in from the first air inlet 101 and then discharged from the first air outlet 102 after pressurization. The second boosting chamber 203 can be contracted or expanded to allow gas to be sucked in from the second air inlet 201 and then discharged from the second air outlet 202 after pressurization. The second air outlet 202 outputs, the volume of the first boost chamber 103 is 1-2 times the volume of the second boost chamber 203, and the buffer chamber 303 is arranged in the output direction of the first boost chamber, which is used to reduce the airflow fluctuation of the first-level boost gas and stabilize the airflow; when the driving member 3 is started, the first sub-pump body 1 and the second sub-pump body 2 run at the same time, and the gas enters the first sub-pump body 1 from the first air inlet 101, and outputs the first-level boost gas from the first air outlet 102 after pressurization, and the first-level boost gas enters the second sub-pump body 2 from the second air inlet 201, and outputs the second-level boost gas from the second air outlet 202 after pressurization. The pressure of the second-level boost gas is 1-2 times the pressure of the first-level boost gas.

[0040] A double-headed air pump is formed by simultaneously driving the first sub-pump body 1 and the second sub-pump body 2 by a driving member 3 with dual driving ends. Compared with the traditional air pump with only a single pump body, the double-headed air pump can maximize the use of the kinetic energy of the driving member 3, reduce the occupied space, and make the double-headed air pump have better applicability. By setting a first boosting chamber 103 with a larger volume in the first sub-pump body 1, and connecting the first air outlet 102 with the second air inlet 201, the air path of the first sub-pump body 1 and the air path of the second sub-pump body 2 are connected in series, thereby increasing the air pressure output by the double-headed air pump. At the same time, a buffer chamber 303 is set to reduce airflow fluctuations, making the output airflow more stable, and also reducing the impact of the asynchronous operation of the two sub-pump bodies on the air pressure.

[0041] In a preferred embodiment, the first sub-pump body 1 includes a first base 11 and a first cover 12 fixed to each other. The first base 11 is provided on one side of the driving member 3. A first pump body mechanism is provided between the first base 11 and the first cover 12. The first pump body mechanism has a first pressurizing chamber 103 inside. The first air inlet 101, the first pressurizing chamber 103 and the first air outlet 102 are connected in one direction in sequence. The first pump body mechanism can be driven by the driving member 3 to inhale air from the first air inlet 101, and output air from the first air outlet 102 after pressurizing in the first pressurizing chamber 103. ; The second sub-pump body 2 includes a second base 21 and a second cover body 22 fixed to each other. The second base 21 is arranged on the side of the driving member 3 away from the first base 11. A second pump body mechanism is provided between it and the second cover body 22. The second pump body mechanism has a second boosting chamber 203 inside. The second air inlet 201, the second boosting chamber 203 and the second air outlet 202 are connected in one direction in sequence. The second pump body mechanism can inhale air from the second air inlet 201 when driven by the driving member 3, and output it from the second air outlet 202 after being pressurized in the second boosting chamber 203.

[0042] In a preferred embodiment, the first pump body mechanism and the second pump body mechanism have the same structure, both including a torsion shaft 31, the two torsion shafts 31 are respectively fixed on the two driving ends, the torsion shaft 31 is rotatably connected to the wobble plate 32, the wobble plate 32 is connected to the boosting assembly 33, and the boosting assembly 33 is also provided with an air distribution assembly on the side away from the wobble plate 32, and a first boosting chamber 103 or a second boosting chamber 203 is formed between the air distribution assembly and the boosting assembly 33, and the air distribution assembly is used to make the first air inlet 101, the first boosting chamber 103 and the first air outlet 102 connected in one-way in sequence, and is also used to make the second air inlet 201, the second boosting chamber 203 and the second air outlet 202 connected in one-way in sequence.

[0043] like Figure 4As shown, the first base 11, the first cover 12, the second base 21 and the second cover 22 are all shells with open ends. The first base 11 and the second base 21 are fixed on both sides of the driving member 3 as supporting parts of the sub-pump body, and the first cover 12 and the second cover 22 are respectively provided with a silencer air duct on the side close to the driving member 3. The silencer air duct is used to eliminate the airflow noise generated when the first sub-pump body 1 and the second sub-pump body 2 are in operation. The first pump body mechanism and the second pump body mechanism have the same structure, both include a torsion shaft 31, and the two torsion shafts 31 are respectively mounted on the two driving ends of the driving member 3, and the torsion shaft 31 is rotatably connected to the wobble plate 32, and the wobble plate 32 is approximately a cross-shaped structure, and is connected to a boost component 33 on the side away from the torsion shaft 31. The boost component 33 has a fixed seat 34 on the outer periphery for fixing and supporting the boost component 33, and a gas distribution component is provided on the side of the boost component 33 away from the wobble plate 32. In this embodiment, the boost component 33 has 4 leather cups 331, and the volume of the leather cup 331 is the volume of the first boost chamber 103 or the second boost chamber 203. By adjusting the volume of the leather cup 331 of the boost component 33 in the first sub-pump body 1 and the second sub-pump body 2 respectively, the first sub-pump body 1 and the second sub-pump body 2 are connected in series in the gas circuit.

[0044] The air distribution assembly is provided with a first one-way valve and a second one-way valve. The first one-way valve of the first sub-pump body 1 is connected to the first air inlet 101 and the first boost chamber 103 in one direction, and the second one-way valve is connected to the first boost chamber 103 and the first air outlet 102 in one direction. The first one-way valve of the second sub-pump body 2 is connected to the second air inlet 201 and the second boost chamber 203 in one direction, and the second one-way valve is connected to the second boost chamber 203 and the second air outlet 202 in one direction. The torsion shaft 31 is driven to rotate by the driving member 3, driving the wobble plate 32 to rotate along the torsion shaft The rotation direction of the shaft 31 compresses / pulls up the four leather cups 331 of the boosting assembly 33 in turn, so that the first sub-pump body 1 draws air from the first air inlet 101, and is pressurized in the first boosting chamber 103 and outputs from the first air outlet 102, and the second sub-pump body 2 draws air from the second air inlet 201, and is pressurized in the second boosting chamber 203 and outputs from the second air outlet 202; the first base 11 and the first cover body 12 can be buckled with each other through four clips 39 to relatively fix the fixing seat 34 and the gas distribution assembly.

[0045] The air distribution assembly includes an upper air distribution layer 36, an air distribution cushion 35 and a lower air distribution layer 37 which are arranged in sequence from the side away from the supercharging assembly 33 to the side close to the supercharging assembly 33. The lower air distribution layer 37 and the upper air distribution layer 36 are used to support the air distribution cushion 35 and assist the air distribution cushion 35 in air distribution. The types of the first one-way valve and the second one-way valve are not particularly limited, and umbrella nails 38 can be used, such as Figure 7As shown, mounting holes and air inlet holes are correspondingly provided on the lower air distribution layer 37 and the air distribution pad 35. The mounting holes and the air inlet holes are respectively provided in the two pump bodies corresponding to the first boosting chamber 103 and the second boosting chamber 203. The mounting holes are used to set an umbrella nail 38. The umbrella nail 38 includes a nail cap and a nail column. The nail cap is provided on the side of the air distribution component close to the boosting chamber. The air inlet holes can respectively connect the first air inlet 101 and the first boosting chamber 103, as well as the second air inlet 201 and the second boosting chamber 203. When the boosting component 33 contracts, the nail cap is pushed by the gas to cover the air inlet hole, so that the air inlet hole is closed. When the boosting component 33 expands, the gas is affected by the pressure and enters the boosting chamber from the side of the air inlet hole away from the nail cap through the air inlet hole. The above-mentioned umbrella nail 38 can realize the function of one-way communication.

[0046] Further, such as Figure 5 As shown, the first one-way valve and the second one-way valve can also be in the form of a pendulum. The pendulum is arranged on the air distribution cushion 35 and can swing in one direction. The lower air distribution layer 37 and the upper air distribution layer 36 are provided with air inlet holes and air outlet holes at positions corresponding to the pendulum. The pendulum can swing in one direction under the gas pressure in a fixed direction, thereby realizing the function of one-way connection.

[0047] In a preferred embodiment, a first air inlet path is connected between the first air inlet 101 and the first boost chamber 103, and a first air outlet path is connected between the first boost chamber 103 and the first air outlet 102; a second air inlet path is connected between the second air inlet 201 and the second boost chamber 203, and a second air outlet path is connected between the second boost chamber 203 and the second air outlet 202.

[0048] like Figure 5-7As shown, the first air inlet path is unidirectionally connected to the first boosting chamber 103 through the first one-way valve, and the first boosting chamber 103 is unidirectionally connected to the first air outlet path through the second one-way valve. When the boosting component 33 of the first sub-pump body 1 expands, the first one-way valve in the first sub-pump body 1 opens, and the second one-way valve closes, and the gas enters the first boosting chamber 103 from the first air inlet port 101 through the first air inlet path. When the boosting component 33 of the first sub-pump body 1 contracts, the second one-way valve in the first sub-pump body 1 opens, and the first one-way valve closes. After being pressurized, the gas in the first boosting chamber 103 is output as a first-level boosted gas through the first air outlet path and the first air outlet 102; the second The air inlet path is unidirectionally connected to the second boost chamber 203 through the first one-way valve, and the second boost chamber 203 is unidirectionally connected to the second air outlet path through the second one-way valve. When the boost component 33 of the second sub-pump body 2 expands, the first one-way valve in the second sub-pump body 2 opens, and the second one-way valve closes. The primary boost gas enters the second boost chamber 203 from the second air inlet port 201 through the second air inlet path. When the boost component 33 of the second sub-pump body 2 contracts, the second one-way valve in the second sub-pump body 2 opens, and the first one-way valve closes. After being pressurized, the primary boost gas in the second boost chamber 203 is output as secondary boost gas through the second air outlet path and the second air outlet 202.

[0049] In a preferred embodiment, the first air inlet 101 is opened on the first cover body 12, the first air outlet 102 is opened on the first base 11, the second air inlet 201 is opened on the second base 21, the second air outlet 202 is opened on the second cover body 22, and a buffer chamber 303 is formed between the second pump body mechanism and the second base 21.

[0050] like Figure 5-7As shown, the double-head air pump can adopt a structure in which the first sub-pump body 1 takes in air at one end away from the driving member 3 and discharges air at one end close to the driving member 3, and the second sub-pump body 2 takes in air at one end close to the driving member 3 and discharges air at one end away from the driving member 3. A first air inlet path is formed between the air distribution component of the first sub-pump body 1 and the first cover body 12, and a first air outlet path is formed between the air distribution component of the first sub-pump body 1 and the first base 11. When the booster component 33 of the first sub-pump body 1 expands, the first one-way valve in the first sub-pump body 1 opens and the second one-way valve closes, and the gas enters the first boosting chamber 103 through the first air inlet path from the first air inlet port 101 on the first cover body 12. When the booster component 33 of the first sub-pump body 1 contracts, the second one-way valve in the first sub-pump body 1 opens and the first one-way valve closes. After being pressurized, the gas in the first boosting chamber 103 passes through the first The air outlet route is output as the first-level pressurized gas through the first air outlet 102 on the first base 11; a buffer chamber 303 is formed between the air distribution component of the second sub-pump body 2 and the second base 21, and a second air outlet route is formed between the second cover body 22. When the boosting component 33 of the second sub-pump body 2 expands, the first one-way valve in the second sub-pump body 2 opens and the second one-way valve closes. The first-level pressurized gas enters the second boosting chamber 203 through the buffer chamber 303 from the second air inlet 201 on the second base 21. When the boosting component 33 of the second sub-pump body 2 contracts, the second one-way valve in the second sub-pump body 2 opens and the first one-way valve closes. After being pressurized, the first-level pressurized gas in the second boosting chamber 203 is output as the second-level pressurized gas through the second air outlet route and the second air outlet 202 on the second cover body 22.

[0051] In a preferred embodiment, the first air inlet 101 is opened on the first base 11, the free end of the first air outlet extends out of the first cover body 12 and is provided with a first air outlet 102, the free end of the second air inlet extends out of the second cover body 22 and is provided with a second air inlet 201, the second air outlet 202 is opened on the second cover body 22, and a buffer chamber 303 is formed between the first pump body mechanism and the first cover body 12.

[0052] like Figure 8As shown, the double-head air pump can also adopt an external air path. A first air inlet path is formed between the air distribution component of the first sub-pump body 1 and the first base 11, and a buffer chamber 303 is formed between the first cover body 12. The first air outlet path extends from the air distribution component of the first sub-pump body 1 to the first cover body 12, and its free end has a first air outlet 102. When the booster component 33 of the first sub-pump body 1 expands, the first one-way valve in the first sub-pump body 1 opens and the second one-way valve closes. The gas enters the first booster chamber 103 from the first air inlet 101 on the first base 11 through the first air inlet path. When the booster component 33 of the first sub-pump body 1 contracts, the second one-way valve in the first sub-pump body 1 opens and the first one-way valve closes. After being pressurized, the gas in the first booster chamber 103 is discharged from the first air outlet through the buffer chamber 303 on the first air outlet. The air outlet 102 outputs the first-stage boosted gas; the second air inlet route extends from the air distribution component of the second sub-pump body 2 to the second cover body 22, and its free end has a second air inlet 201, and a second air outlet route is formed between the air distribution component of the second sub-pump body 2 and the second cover body 22. When the boosting component 33 of the second sub-pump body 2 expands, the first one-way valve in the second sub-pump body 2 opens and the second one-way valve closes. The first-stage boosted gas enters the second boosting chamber 203 through the second air inlet 201 through the second air inlet route and the second cover body 22. When the boosting component 33 of the second sub-pump body 2 contracts, the second one-way valve in the second sub-pump body 2 opens and the first one-way valve closes. After being pressurized, the gas in the second boosting chamber 203 is output as the second-stage boosted gas through the second air outlet route to the second air outlet 202 on the second cover body 22.

[0053] In a preferred embodiment, the first air outlet 102 is connected to the second air inlet 201 through an air pipe 301 .

[0054] like Figure 5 、 Figure 6 and Figure 8 As shown, the first air outlet 102 and the second air inlet 201 are connected to each other outside the pump body through the air pipe 301, so that the air paths of the first sub-pump body 1 and the second sub-pump body 2 are connected in series; Figure 11 As shown, a buffer chamber 303 may be provided on the air pipe 301 to enhance the flow stabilization effect.

[0055] In a preferred embodiment, at least one first air outlet 102 is connected to at least one second air inlet 201 through an air pipe 301 , and at least one first air outlet 102 is connected to the outside.

[0056] like Figure 7As shown, in this embodiment, two first air outlets 102 are provided on the first base 11, and a second air inlet 201 is provided on the second base 21. One of the first air outlets 102 is connected to the second air inlet 201 through the air pipe 301, and the other first air outlet 102 is connected to the outside of the pump body. Through the above arrangement, the double-head air pump can simultaneously output the first-stage pressurized gas and the second-stage pressurized gas.

[0057] In a preferred embodiment, the driving member 3 includes a housing 40, a rotor 41 is provided in the housing 40, a driving shaft 42 is passed through and fixed on the rotor 41, and both ends of the driving shaft 42 extend along the first direction and pass through the housing 40 to form a driving end; the housing 40 is provided with a first through hole and a second through hole on both sides along the first direction, respectively, the first through hole is connected to the first air outlet 102, and the second through hole is connected to the second air inlet 201.

[0058] like Figure 9 As shown, the first direction is the horizontal direction in the figure, and there is an internal air path in the housing 40 of the driving member 3. By connecting the first air outlet 102 and the second air inlet 201 with the internal air path of the driving member 3 respectively, the air paths of the first sub-pump body 1 and the second sub-pump body 2 are connected in series, and the air can flow through the interior of the driving member 3 to dissipate heat for the driving member 3.

[0059] In a preferred embodiment, a third through hole 302 is further defined in the housing 40 .

[0060] like Figure 10 As shown, a third through hole 302 is opened on the outer shell 40, which allows external air to enter the outer shell 40 driven by the first-stage pressurized gas, and after mixing with the first-stage pressurized gas, enter the second sub-pump body 2 through the second air inlet 201. By introducing external air with lower temperature, the heat dissipation inside the driving part 3 can be further enhanced.

[0061] In a preferred embodiment, the two torsion shafts 31 are arranged on both sides of the driving member 3 in the same direction or in opposite directions.

[0062] like Figure 8 and Figure 10 As shown, by arranging two torsion shafts at both ends of the driving member 3 in the same direction or opposite directions, the driving member 3 can avoid driving the first sub-pump body 1 and the second sub-pump body 2 to cause deviation during use, making the double-head air pump more stable; in actual use, the angle between the two projections of the two torsion shafts 31 in the axial direction of the driving member 3 can be 0°±15° or 180°±15°.

[0063] This article uses specific examples to illustrate the principles and implementation methods of this application. The description of the above embodiments is only used to help understand the method and core ideas of this application. The above is only the preferred implementation method of this application. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principles of the present invention, they can also make several improvements, modifications or changes, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the inventive concept and technical solution to other occasions without improvement, should be regarded as the scope of protection of this application.

Claims

1. A double-head air pump with air circuits connected in series, characterized in that: include: A driving member (3), wherein the driving member (3) has two driving ends; A first sub-pump body (1), the first sub-pump body (1) being provided with at least one first air inlet (101) and at least one first air outlet (102), and having at least one first pressurizing chamber (103) therein; A second sub-pump body (2), the second sub-pump body (2) being provided with at least one second air inlet (201) and at least one second air outlet (202), and having at least one second boosting chamber (203) therein; the second air inlet (201) being correspondingly connected to the first air outlet (102), the volume of the first boosting chamber (103) being larger than the volume of the second boosting chamber (203), and a buffer chamber (303) being further provided between the first boosting chamber (103) and the second boosting chamber (203); The first sub-pump body (1) and the second sub-pump body (2) are respectively arranged on both sides of the driving member (3) and are transmission-connected to different driving ends. The driving member (3) is used to simultaneously drive the first sub-pump body (1) and the second sub-pump body (2), so that the gas enters the first boosting chamber (103) through the first air inlet (101) and is pressurized before being output to the buffer chamber (303), and then enters the second boosting chamber (203) from the buffer chamber (303) and is pressurized before being output from the second air outlet (202).

2. A double-head air pump with air circuits connected in series according to claim 1, characterized in that: The first sub-pump body (1) comprises a first base (11) and a first cover (12) fixed to each other, the first base (11) being arranged on one side of the driving member (3), and a first pump body mechanism being arranged between the first base (11) and the first cover (12), the first pump body mechanism having the first boosting chamber (103) inside, the first air inlet (101), the first boosting chamber (103) and the first air outlet (102) being connected in one direction in sequence, the first pump body mechanism can inhale air from the first air inlet (101) under the drive of the driving member (3), and output air from the first air outlet (102) after being pressurized in the first boosting chamber (103); the second sub-pump The body (2) includes a second base (21) and a second cover (22) fixed to each other, the second base (21) being arranged on a side of the driving member (3) away from the first base (11), and a second pump body mechanism being arranged between the second base (21) and the second cover (22), the second pump body mechanism having a second pressurizing chamber (203) inside, the second air inlet (201), the second pressurizing chamber (203) and the second air outlet (202) being connected in one direction in sequence, and the second pump body mechanism can inhale air from the second air inlet (201) under the drive of the driving member (3), and output air from the second air outlet (202) after pressurizing in the second pressurizing chamber (203).

3. A double-head air pump with air circuits connected in series according to claim 2, characterized in that: The first air inlet (101) is provided on the first cover (12), the first air outlet (102) is provided on the first base (11), the second air inlet (201) is provided on the second base (21), the second air outlet (202) is provided on the second cover (22), and the buffer chamber (303) is formed between the second pump body mechanism and the second base (21).

4. A double-head air pump with air circuits connected in series according to claim 2, characterized in that: A first air outlet is connected between the first boost chamber (103) and the first air outlet (102), and a second air inlet is connected between the second air inlet (201) and the second boost chamber (203); the first air inlet (101) is provided on the first base (11), the free end of the first air outlet extends out of the first cover (12) and is provided with the first air outlet (102), the free end of the second air inlet extends out of the second cover (22) and is provided with the second air inlet (201), the second air outlet (202) is provided on the second cover (22), and the buffer chamber (303) is formed between the first pump body mechanism and the first cover (12).

5. A double-head air pump with air circuits connected in series according to claim 3 or 4, characterized in that: The first air outlet (102) is connected to the second air inlet (201) via an air pipe (301).

6. A double-head air pump with air circuits connected in series according to claim 3 or 4, characterized in that: At least one of the first air outlets (102) is connected to at least one of the second air inlets (201) via an air pipe (301), and at least one of the first air outlets (102) is connected to the outside.

7. A double-head air pump with air circuits connected in series according to claim 3, characterized in that: The driving member (3) comprises a housing (40), a rotor (41) is provided in the housing (40), a driving shaft (42) is fixedly provided on the rotor (41), and both ends of the driving shaft (42) extend along a first direction and penetrate the housing (40) to form the driving end portion; the housing (40) is provided with a first through hole and a second through hole on both sides along the first direction, the first through hole is communicated with the first air outlet (102), and the second through hole is communicated with the second air inlet (201).

8. A double-head air pump with air circuits connected in series according to claim 7, characterized in that: A third through hole (302) is also provided on the housing (40).

9. A double-head air pump according to claim 2, characterized in that: The first pump body mechanism and the second pump body mechanism have the same structure, both comprising a torsion shaft (31), the two torsion shafts (31) being fixed on the two driving ends respectively, the torsion shaft (31) being rotatably connected to a wobble plate (32), the wobble plate (32) being connected to a boost assembly (33), the boost assembly (33) being further provided with an air distribution assembly on a side away from the wobble plate (32), the first boost chamber (103) or the second boost chamber (203) being formed between the air distribution assembly and the boost assembly (33), the air distribution assembly being used to sequentially connect the first air inlet (101), the first boost chamber (103) and the first air outlet (102) in one-way communication, and also being used to sequentially connect the second air inlet (201), the second boost chamber (203) and the second air outlet (202) in one-way communication.

10. A double-head air pump according to claim 9, characterized in that: The two torsion shafts (31) are arranged on both sides of the driving member (3) in the same direction or in opposite directions.

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