Air pump device and air pump equipment

Abstract

The utility model relates to the technical field of gas inflation and deflation, in particular to a gas pump device and gas pump equipment, the gas pump device comprises a shell, a low-pressure gas pipe, a high-pressure gas pipe and a gas pump assembly, the shell is provided with a mounting cavity and a low-pressure gas port, and the low-pressure gas port communicates with the mounting cavity; the low-pressure air pipe is arranged in the mounting cavity and provided with a low-pressure cavity and a high-pressure air passing opening. The high-pressure air passing opening is communicated with the low-pressure cavity; the low-pressure cavity is communicated with the low-pressure air port; the high-pressure air pipe is arranged in the low-pressure cavity; a high-pressure air passage and a high-pressure air port are formed; the high-pressure air port corresponds to the low-pressure air port; the air pump assembly comprises a low-pressure air pump and a high-pressure air pump, and the low-pressure air pump is arranged in the low-pressure The high-pressure air pump is connected with the high-pressure air passing opening through a pipeline, and the pipeline penetrates through the high-pressure air passing opening and communicates with the interior of the high-pressure air channel. The low-pressure gas port and the high-pressure gas port are both located on the same side, the high-pressure gas port is located in the low-pressure gas port, and during work, pressure conversion can be completed without replacing the connector.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of gas charging and discharging, and in particular to a gas pump device and a gas pump equipment. BACKGROUND

[0002] Gas charging and discharging is relatively common in life, and specific forms include tire inflation, food packaging vacuumization, tent inflation and air extraction, etc. These usually require a gas pump device to perform gas charging and discharging operation.

[0003] Some gas pump devices only have high-pressure inflation function, some gas pump devices only have low-pressure inflation function, and some gas pump devices have both high-pressure inflation function and low-pressure inflation function, and different pressure gas charging and discharging is realized through two pump bodies with different pressures. However, the interfaces of the current multi-pump body gas pump device are in different directions, and when the user needs to switch between high-pressure inflation function and low-pressure inflation function in work, the user needs to connect different interfaces, which is relatively cumbersome. CONTENT OF THE UTILITY MODEL

[0004] The application provides a gas pump device and a gas pump equipment to realize the purpose of converting inflation pressure without replacing the connector.

[0005] In one aspect, the application provides a gas pump device, comprising:

[0006] A housing having a mounting cavity and a low-pressure air port, the low-pressure air port being in communication with the mounting cavity;

[0007] A low-pressure air pipe arranged in the mounting cavity and having a low-pressure cavity and a high-pressure air passage, the high-pressure air passage being in communication with the low-pressure cavity, and the low-pressure cavity being in communication with the low-pressure air port;

[0008] A high-pressure air pipe arranged in the low-pressure cavity and having a high-pressure air duct and a high-pressure air port, the high-pressure air port being arranged corresponding to the low-pressure air port;

[0009] A gas pump assembly comprising a low-pressure gas pump and a high-pressure gas pump, the low-pressure gas pump being arranged in the low-pressure cavity, and the high-pressure gas pump being connected to the high-pressure air passage through a pipeline, the pipeline being arranged through the high-pressure air passage and being in communication with the high-pressure air duct.

[0010] Further, the housing is provided with a flow guide plate on the side close to the low-pressure air port, the flow guide plate is provided with a high-pressure air outlet hole and a low-pressure air outlet hole arranged in intervals, the high-pressure air outlet hole is located at the middle position of the flow guide plate and is in communication with the high-pressure air port corresponding to the low-pressure air port, and the low-pressure air outlet hole is arranged around the high-pressure air outlet hole and is in communication with the low-pressure air port corresponding to the low-pressure air port.

[0011] Further, the flow guide plate comprises:

[0012] The flow guide part is provided with the high-pressure air outlet hole and the low-pressure air outlet hole;

[0013] The connecting part is connected to the circumferential wall of the flow guide part and is detachably connected to the low-pressure air pipe.

[0014] Further, the flow guide part comprises a low-pressure flow guide ring, a high-pressure flow guide ring and a plurality of flow guide rods. The low-pressure flow guide ring is sleeved on the high-pressure flow guide ring and is arranged at intervals to form a low-pressure air outlet hole. The flow guide rods are arranged at intervals and are arranged in the low-pressure air outlet hole. One end of each flow guide rod is connected to the low-pressure flow guide ring, and the other end is connected to the high-pressure flow guide ring. The high-pressure flow guide ring is provided with the high-pressure air outlet hole. The connecting part is connected to the circumferential wall of the low-pressure flow guide ring.

[0015] Further, the flow guide rods are arranged in a curved manner.

[0016] Further, an adapter sleeve is sleeved on one end of the high-pressure air pipe facing the high-pressure flow guide ring, and the adapter sleeve is inserted into the high-pressure air outlet hole.

[0017] Further, one end of the high-pressure air duct close to the high-pressure air port is provided with a threaded part for connecting to an external connector.

[0018] Further, a support rod is arranged on the outer side of the high-pressure air pipe, and one end of the support rod away from the high-pressure air pipe is connected to the inner wall of the low-pressure air pipe.

[0019] Further, the pipeline comprises a hard pipe and a soft pipe. The hard pipe is arranged between the high-pressure air port and the high-pressure air pipe and extends out of the low-pressure air pipe from the high-pressure air port. One end of the soft pipe is connected to the high-pressure air pump, and the other end is in communication with the hard pipe outside the low-pressure air pipe.

[0020] Further, the shell is provided with a handle, and the handle is in communication with the mounting cavity. The high-pressure air pump is arranged in the handle.

[0021] Further, the shell and the handle are respectively provided with air vents.

[0022] On the other hand, the application provides a gas pump device, comprising:

[0023] The gas pump device as described above,

[0024] A connector is provided with an air outlet cavity. The connector is detachably connected to the shell of the gas pump device, and the high-pressure air port and the low-pressure air port are respectively in communication with the air outlet cavity.

[0025] The above technical solutions provided by the application have the following advantages compared with the prior art:

[0026] In the technical solution of the application, the shell has a mounting cavity and a low-pressure air port, the air pump assembly includes a low-pressure air pump and a high-pressure air pump, the mounting cavity is used for mounting the low-pressure air pipe, the high-pressure air pipe and the air pump assembly, and the low-pressure air port is used for the circulation of low-pressure air flow inside and outside the shell; the low-pressure air pump is mounted in the low-pressure cavity of the low-pressure air pipe, and the low-pressure air pump is communicated with the low-pressure air port. When air is discharged, the low-pressure air flow flows out from the low-pressure air port along the low-pressure air pipe. The high-pressure air pipe is arranged in the low-pressure cavity, one end of the high-pressure air pipe is a high-pressure air port, the high-pressure air port is used for the circulation of high-pressure air flow inside and outside the shell, and the high-pressure air pipe is communicated with the high-pressure air pump through a pipeline. The arrangement can make the high-pressure air port and the low-pressure air port located on the same side and independently operate. Therefore, the application can complete the conversion of pressure without replacing the connector during the operation of the air pump assembly. BRIEF DESCRIPTION OF DRAWINGS

[0027] The drawings incorporated into the specification and constituting a part of the specification show embodiments consistent with the application and, together with the specification, serve to explain the principles of the application.

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below. Obviously, for those skilled in the art, other drawings can also be obtained without creative labor based on these drawings.

[0029] One or more embodiments are exemplarily illustrated by pictures in the drawings corresponding thereto, and these exemplary illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, unless otherwise specified. The drawings in the drawings do not constitute a proportional limitation.

[0030] Figure 1 The structural schematic diagram of the air pump device provided for the embodiments of the application is shown in the drawings.

[0031] Figure 2 For Figure 1 The partial view of the device is shown in the drawings.

[0032] Figure 3 For Figure 1 The top view sectional view in the drawings is shown in the drawings.

[0033] Figure 4 For Figure 1 The partial view of the drawings without the shell is shown in the drawings.

[0034] Figure 5 For Figure 1 The structural schematic diagram of the air pump connector in the drawings is shown in the drawings.

[0035] Explanation of reference numerals:

[0036] 1, housing; 11, mounting cavity; 12, low pressure air port; 13, handle; 14, air vent;

[0037] 2, low pressure air pipe; 21, low pressure cavity; 22, high pressure air port;

[0038] 3, high pressure air pipe; 31, high pressure air passage; 32, high pressure air port; 33, adapter sleeve; 34, threaded part;

[0039] 4, air pump assembly; 41, low pressure air pump; 42, high pressure air pump;

[0040] 5, pipe; 51, hard pipe; 52, hose;

[0041] 6, flow guide plate; 61, flow guide part; 611, high pressure air outlet; 612, low pressure air outlet; 613, low pressure flow guide ring; 614, high pressure flow guide ring; 615, flow guide rod; 62, connecting part; 621, buckle; 622, clamping groove;

[0042] 7, support rod;

[0043] 8, joint; 801, connecting plate; 802, low pressure air interface; 803, high pressure air interface; 804, connector. DETAILED DESCRIPTION

[0044] To make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0045] The following disclosure provides many different embodiments or examples for implementing different structures of the present application. In order to simplify the disclosure of the present application, the components and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present application. In addition, the present application can repeatedly refer to numbers and / or letters in different examples. Such repetition is for the purpose of simplification and clarity, and does not indicate the relationship between the various embodiments and / or settings discussed.

[0046] For the convenience of description, spatial relative terms can be used in the specification to describe the relative position relationship or movement of one element or feature with respect to another element or feature as shown in the drawings, such as "inner", "outer", "inboard", "outboard", "under", "below", "on", "above", "front", "back", etc. Such spatial relative terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the drawings. For example, if the device in the drawings is turned over or the posture is changed or the movement state is changed, the directional indications will also change accordingly, for example: the element described as "under" or "below" another element or feature will be oriented as "above" or "above" another element or feature. Therefore, the example term "below" can include both up and down positions. The device can be additionally oriented (rotated 90 degrees or in other directions) and the spatial relative relationship descriptors used in the specification are interpreted accordingly.

[0047] To solve the technical problems in the prior art, the application provides a gas pump device, which can realize the conversion of pressure without replacing the joint 8 and without frequent disassembly of the joint 8 during the working process, in the specific manner as follows:

[0048] Figures 1 to 5 A gas pump device provided by the embodiment of the application includes a shell 1, a low-pressure air pipe 2, a high-pressure air pipe 3, and a gas pump assembly 4. The shell 1 has a mounting cavity 11 and a low-pressure air port 12, and the low-pressure air port 12 is in communication with the mounting cavity 11. The low-pressure air pipe 2 is arranged in the mounting cavity 11 and has a low-pressure cavity 21 and a high-pressure air passage 22. The high-pressure air passage 22 is in communication with the low-pressure cavity 21. The low-pressure cavity 21 is in communication with the low-pressure air port 12. The high-pressure air pipe 3 is arranged in the low-pressure cavity 21 and has a high-pressure air channel 31 and a high-pressure air port 32. The high-pressure air port 32 is arranged corresponding to the low-pressure air port 12. The gas pump assembly 4 includes a low-pressure gas pump 41 and a high-pressure gas pump 42. The low-pressure gas pump 41 is arranged in the low-pressure cavity 21. The high-pressure gas pump 42 is connected with the high-pressure air passage 22 through a pipeline 5, and the pipeline 5 is arranged in the high-pressure air passage 22 and is in communication with the high-pressure air channel 31.

[0049] In the technical solution of this application, the housing 1 has an installation cavity 11 and a low-pressure air port 12. The air pump assembly 4 includes a low-pressure air pump 41 and a high-pressure air pump 42. The installation cavity 11 is used to install the low-pressure air pipe 2, the high-pressure air pipe 3, and the air pump assembly 4. The low-pressure air port 12 is used for the flow of low-pressure airflow inside and outside the housing 1. The low-pressure air pump 41 is installed in the low-pressure cavity 21 of the low-pressure air pipe 2, and the low-pressure air pump 41 is connected to the low-pressure air port 12. When releasing air, the low-pressure airflow flows out from the low-pressure air port 12 along the low-pressure air pipe 2. The high-pressure air pipe 3 is located in the low-pressure cavity 21, and one end of the high-pressure air pipe 3 is a high-pressure air port 32. The high-pressure air port 32 is used for the flow of high-pressure airflow inside and outside the housing 1. The high-pressure air pipe 3 is connected to the high-pressure air pump 42 through the high-pressure air port 22 via the pipe 5. This arrangement allows the high-pressure air port 32 and the low-pressure air port 12 to be located on the same side and operate independently of each other. Therefore, this application enables pressure conversion to be completed without replacing the connector during the operation of the air pump assembly 4.

[0050] The air pump assembly 4 can change the driving direction by reversing the direction of rotation or by designing the blades, thereby enabling the low-pressure air port 12 and the high-pressure air port 32 to have the functions of inflating and deflating air.

[0051] like Figures 1 to 2 As shown, in this embodiment, a guide plate 6 is provided on the side of the housing 1 near the low-pressure air port 12. The guide plate 6 is used to make the low-pressure airflow more uniform when passing through the low-pressure air port 12. The guide plate 6 is provided with a high-pressure air outlet 611 and low-pressure air outlets 612 arranged at intervals. The guide plate 6 achieves the guiding function through the low-pressure air outlets 612. The high-pressure air outlet 611 is located in the middle of the guide plate 6 and is correspondingly connected to the high-pressure air port 32. The low-pressure air outlets 612 are arranged around the high-pressure air outlet 611 and are correspondingly connected to the low-pressure air port 12. This arrangement is not only aesthetically pleasing but also ensures that the low-pressure air outlets 612 are evenly arranged, resulting in more uniform airflow from the low-pressure air outlets 612. This arrangement allows the high-pressure airflow to be ejected from the high-pressure air outlet 611 through the high-pressure air port 32, and the low-pressure airflow to be ejected from the low-pressure air outlet 12, with the two being independent of each other.

[0052] In this embodiment, the design of the guide plate allows it to be connected to an external connector (as described below). The guide plate is also designed with both high-pressure and low-pressure air outlets, ensuring that the high-pressure or low-pressure air pump can share a single connector without needing to replace it.

[0053] like Figures 2 to 3 As shown, the guide plate 6 includes a guide section 61 and a connecting section 62. The guide section 61 is provided with a high-pressure air outlet 611 and a low-pressure air outlet 612 to make the airflow inside and outside the housing 1 more uniform. The connecting section 62 is connected to the peripheral wall of the guide section 61 and is detachably connected to the low-pressure air pipe 2 for easy installation and replacement.

[0054] The specific connection mode is that the connecting part 62 is provided with a buckle 621, and a corresponding clamping groove 622 is arranged at the corresponding position of the low-pressure air pipe 2. During installation, the connecting part 62 is sleeved on the low-pressure air pipe 2, and when the buckle moves to the clamping groove 622, the buckle 621 is buckled in the clamping groove 622, and the connection is completed. During disassembly, the buckle 621 is moved to separate the clamping groove 622, and then the flow guide plate 6 can be taken out. This arrangement can improve the installation and disassembly of the flow guide plate 6, and facilitate replacement.

[0055] As shown in Figures 2 to 3 In the technical scheme of the embodiment, the flow guide part 61 includes a low-pressure flow guide ring 613, a high-pressure flow guide ring 614, and a plurality of flow guide rods 615. The low-pressure flow guide ring 613 is sleeved on the high-pressure flow guide ring 614, and the flow guide rods 615 are arranged at intervals to form low-pressure air outlets 612. The flow guide rods 615 are arranged at the low-pressure air outlets 612, and each flow guide rod 615 is connected at one end to the low-pressure flow guide ring 613 and at the other end to the high-pressure flow guide ring 614. The plurality of flow guide rods 615 are arranged at intervals. The high-pressure flow guide ring 614 is provided with high-pressure air outlets 611. The connecting part 62 is connected to the circumferential wall of the low-pressure flow guide ring 613. The low-pressure air outlets 612 formed by the plurality of flow guide rods 615 can uniformly output gas. That is, in fluid flow, the gas flow is generally constant. This means that in a closed system, the total flow of gas should be evenly distributed among the various air ports. Since the low-pressure air port 12 has a larger diameter, in order to uniformly distribute the air outlets in the entire space, it can help to distribute the airflow in a more uniform manner, avoiding excessive concentration of airflow in certain areas, thereby producing uneven airflow distribution. In summary, by symmetrically distributing the air ports, the air flow can be made more uniform, thereby playing a role in flow guiding.

[0056] As shown in Figure 3 In the technical scheme of the embodiment, the flow guide rods 615 are arranged in a curved manner, so that the periphery of the low-pressure air outlets 612 is curved. This design can make the airflow pass more smoothly through the streamlined curved surface, reduce the turbulence and vortex of the airflow, thereby reducing the resistance and energy loss in the flow, and improving the fluid dynamics performance.

[0057] The end of the high-pressure air pipe 3 facing the high-pressure flow guide ring 614 is sleeved with an adapter sleeve 33, and the adapter sleeve 33 is inserted into the high-pressure air outlet 611, so as to improve the installation efficiency of the joint 8 and improve the sealing performance.

[0058] The high-pressure air duct 31 is provided with a threaded part 34 at one end close to the high-pressure air port 32, which is used for connecting with the external joint 8. The threaded connection makes the joint 8 more firmly connected, and facilitates the installation and replacement of the joint 8.

[0059] In this embodiment, a support rod 7 is provided on the outer side of the high-pressure air pipe 3, and the end of the support rod 7 away from the high-pressure air pipe 3 is connected to the inner wall of the low-pressure air pipe 2. The support rod 7 can provide support for the high-pressure air pipe 3 and improve the stability of the high-pressure air pipe 3.

[0060] like Figure 2 , Figure 4 As shown, in this embodiment, the pipe 5 includes a rigid pipe 51 and a flexible pipe 52. The rigid pipe 51 is disposed between the high-pressure air inlet 22 and the high-pressure air pipe 3, and extends from the high-pressure air inlet 22 out of the low-pressure air pipe 2. One end of the flexible pipe 52 is connected to the high-pressure air pump 42, and the other end is connected to the rigid pipe 51 outside the low-pressure air pipe 2. The rigid pipe 51 is a fixed pipe to maintain the seal between the high-pressure air inlet 22 and the pipe 5, and also to provide support for the high-pressure air pipe 3. The flexible pipe 52 is connected to the rigid pipe 51 outside the low-pressure air pipe 2. The flexible pipe 52 allows for a more flexible spatial layout within the housing 1 and also facilitates the replacement of the pipe 5.

[0061] like Figures 1 to 3 As shown, the housing 1 is equipped with a handle 13, the interior of which communicates with the mounting cavity 11, and the high-pressure air pump 42 is located inside the handle 13. This arrangement allows for a more reasonable weight distribution of the entire device, preventing the center of gravity from being concentrated in the low-pressure cavity 21, thus increasing the comfort of gripping the device during use. Multiple vents 14 can be provided, with multiple vents arranged around the outer sides of the housing 1 and the handle 13. This arrangement allows for comparison of local air intake during device inflation. If the intake gas flow rate is greater than the gas return flow rate, the gas in other directions may not be able to replenish the intake port immediately, potentially leading to insufficient gas near the intake port. By using a surrounding arrangement of vents, air can be drawn in from 360° around the sides of the housing and the handle 13, increasing the intake gas flow rate threshold and improving intake efficiency.

[0062] This application also provides an air pump device, including the air pump assembly as described above and a connector 8. The connector 8 has an air outlet chamber; the connector 8 is detachably connected to the housing 1 of the air pump assembly, and a high-pressure air port 32 and a low-pressure air port 12 are respectively connected to the air outlet chamber. Specifically, one end of the connector 8 connected to the housing 1 is a connecting plate 801, which has multiple low-pressure air inlets 802 for low-pressure airflow. The middle part of the connecting plate 801 is a high-pressure air inlet 803, and a connector 804 is detachably installed inside the high-pressure air inlet 803. One end of the connector 804 is threaded and adapted to a threaded portion 34. The connector 8 is connected to the threaded portion 34 through the connector. This configuration allows for quick assembly and disassembly of the connector 8, while the threaded connection makes the connection between the connector 8 and the air pump assembly more secure.

[0063] In the technical scheme of the embodiment, in addition to the structure described above, the device further comprises a control end installed in the shell 1, the control end comprising a control button extending out of the shell 1, the air pump assembly 4 being capable of replacing the low-pressure air pump 41 and the high-pressure air pump 42, working, and switching the low-pressure air pump 41 and the high-pressure air pump 42 to realize the suction and exhaust of the device.

[0064] In the above embodiments, the description of each embodiment has its own focus, and the parts not described in detail in a certain embodiment can be referred to the relevant description of other embodiments.

[0065] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0066] In addition, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly specified and limited.

[0067] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be connected, or detachable, or integrated; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0068] In the present application, unless specifically defined otherwise, the expression "on" or "under" of a first feature with respect to a second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the expression "on", "above" and "over" of a first feature with respect to a second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The expression "under", "below" and "underneath" of a first feature with respect to a second feature includes that the first feature is directly below and obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0069] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" and the like means that the specific feature, structure, material or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms should not be understood as necessarily referring to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, a person skilled in the art can combine and combine different embodiments or examples described in the present specification.

[0070] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, any modifications and variations of the present application that fall within the scope of the claims of the present application and their equivalents are intended to be included in the present application.

[0071] The above is a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can easily think of various equivalent modifications or replacements within the technical scope disclosed by the present application, and these modifications or replacements should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A gas pump device, characterized by, The application relates to a shell (1) with a mounting cavity (11) and a low-pressure air port (12) communicating with the mounting cavity (11); a low-pressure air pipe (2) arranged in the mounting cavity (11) and having a low-pressure cavity (21) and a high-pressure air passing port (22); the high-pressure air passing port (22) communicates with the low-pressure cavity (21); the low-pressure cavity (21) communicates with the low-pressure air port (12); a high-pressure air pipe (3) arranged in the low-pressure cavity (21) and having a high-pressure air channel (31) and a high-pressure air port (32); the high-pressure air port (32) is arranged corresponding to the low-pressure air port (12); a gas pump assembly (4) comprising a low-pressure gas pump (41) arranged in the low-pressure cavity (21) and a high-pressure gas pump (42) connected with the high-pressure air passing port (22) through a pipeline (5) penetrating through the high-pressure air passing port (22) and communicating with the high-pressure air channel (31). The shell (1) is provided with a flow guide plate (6) on one side close to the low-pressure air port (12); the flow guide plate (6) is provided with a high-pressure air outlet hole (611) and a low-pressure air outlet hole (612) arranged in intervals; the high-pressure air outlet hole (611) is located at the middle position of the flow guide plate (6) and communicates with the high-pressure air port (32) in correspondence; the low-pressure air outlet hole (612) is arranged around the high-pressure air outlet hole (611) and communicates with the low-pressure air port (12) in correspondence. The flow guide plate (6) comprises a flow guide part (61) provided with the high-pressure air outlet hole (611) and the low-pressure air outlet hole (612) and a connecting part (62) connected around the peripheral wall of the flow guide part (61) and detachably connected with the low-pressure air pipe (2). The flow guide part (61) comprises a low-pressure flow guide ring (613), a high-pressure flow guide ring (614) and a plurality of flow guide rods (615); the low-pressure flow guide ring (613) is sleeved on the high-pressure flow guide ring (614) and arranged in intervals to form the low-pressure air outlet hole (612); the flow guide rods (615) are arranged in the low-pressure air outlet hole (612) and each flow guide rod (615) is connected at one end with the low-pressure flow guide ring (613) and at the other end with the high-pressure flow guide ring (614); the plurality of flow guide rods (615) are arranged in intervals; the high-pressure flow guide ring (614) is provided with the high-pressure air outlet hole (611); the connecting part (62) is connected around the peripheral wall of the low-pressure flow guide ring (613). The flow guide rods (615) are arranged in a curved mode; 2. The air pump device of claim 1, wherein, The high-pressure air pipe (3) is provided at one end facing the high-pressure flow guide ring (614) with an adapter sleeve (33) sleeved thereon; the adapter sleeve (33) is inserted into the high-pressure air outlet hole (611); 3. The gas pump device of claim 2, wherein The high-pressure air channel (31) is provided at one end close to the high-pressure air port (32) with a threaded part (34) used for connecting with an external joint (8). ​ ​ 4. The air pump device of claim 3, wherein, ​ 5. The gas pump device according to claim 4, wherein ​ ​ ​ 6. The air pump device of claim 1, wherein, The high-pressure air pipe (3) is provided with a support rod (7) on the outside, and the end of the support rod (7) away from the high-pressure air pipe (3) is connected with the inner wall of the low-pressure air pipe (2).

7. The air pump device of claim 1, wherein, The pipeline (5) comprises a hard pipe (51) and a soft pipe (52), the hard pipe (51) is arranged between the high-pressure air outlet (22) and the high-pressure air pipe (3) and extends out of the low-pressure air pipe (2) from the high-pressure air outlet (22), and one end of the soft pipe (52) is connected with the high-pressure air pump (42) and the other end is communicated with the hard pipe (51) outside the low-pressure air pipe (2).

8. The air pump device of claim 1, wherein, The shell (1) is provided with a handle (13), the inside of the handle (13) is communicated with the mounting cavity (11), and the high-pressure air pump (42) is arranged in the handle (13).

9. The gas pump device of claim 8, wherein, The shell (1) and the handle (13) are respectively provided with air holes (14).

10. A gas pump device, characterized by The air pump device comprises: The air pump device according to any one of claims 1-9, A joint (8) having an air outlet cavity; the joint (8) is detachably connected with the shell (1) of the air pump device, and the high-pressure air outlet (32) and the low-pressure air outlet (12) are respectively communicated with the air outlet cavity.

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