Double-cylinder and double-motor inflating device

Abstract

The utility model discloses a double-cylinder and double-motor inflating device, and belongs to the field of inflating devices. The double-cylinder double-motor inflation device comprises a first inflation pump, a second inflation pump and an offset type air outlet piece. The first inflator pump and the second inflator pump are arranged side by side; the offset air outlet piece is communicated with the first inflator pump and the second inflator pump, and an air outlet is formed in the offset air outlet piece and is adjacent to the first inflator pump. According to the double-cylinder and double-motor inflating device, the driving load of a single inflating pump is reduced, and the temperature rise is reduced to prolong the service life; the flow path of the first inflator pump is shortened, the flow path of the second inflator pump is prolonged, airflow interference is reduced through the spatial asymmetric flow path design, the flow balance problem when the double air pumps are connected in parallel is solved, and meanwhile the compact layout is maintained.

Description

Technical Field

[0001] This application relates to the field of inflation device technology, and in particular to a dual-cylinder dual-motor inflation device. Background Technology

[0002] An air pump, also called a tire inflator, is a tool for inflating objects, powered by a motor. The working principle is as follows: when the motor is running and air is being drawn in, the valve of the inflator is opened by atmospheric pressure, allowing air to enter the cylinder. Conversely, when inflating a device, the valve is closed by the pressure inside the cylinder, allowing air to enter the device. Air pumps have a wide range of applications, including automobiles, motorcycles, bicycles, balls, paddleboards, and inflatable boats.

[0003] Currently, most air pumps on the market have a single-motor, dual-cylinder structure. One motor drives two cylinders to inflate the device, improving inflation efficiency. However, this structure places a heavy load on the motor. Increased load leads to increased output torque, resulting in higher current and more heat generation, which in turn affects the motor's lifespan. Utility Model Content

[0004] In view of this, the purpose of this application is to overcome the shortcomings of the prior art and provide a dual-cylinder dual-motor air inflation device to solve the technical problem that the air pump motor with a single motor dual-cylinder structure in the prior art has a large load, which leads to rapid temperature rise and affects the service life of the motor.

[0005] To solve the above-mentioned technical problems, this application provides:

[0006] A dual-cylinder, dual-motor inflation device, comprising:

[0007] A first air pump and a second air pump are arranged side by side;

[0008] An offset air outlet is provided, which is connected to the first air pump and the second air pump respectively. The offset air outlet is provided with an air outlet, which is located adjacent to the first air pump.

[0009] In addition, the dual-cylinder dual-motor inflation device according to this application may also have the following additional technical features:

[0010] In some embodiments of this application, the first air pump includes a first drive assembly and a first inflation assembly, wherein the first drive assembly is used to provide power to the first inflation assembly so that the first inflation assembly outputs a first airflow to the biased air outlet;

[0011] The second air pump includes a second drive assembly and a second air inflation assembly. The second drive assembly provides power to the second air inflation assembly so that the second air inflation assembly outputs a second airflow to the biased air outlet.

[0012] In some embodiments of this application, the biased exhaust element includes:

[0013] A DC channel, which is connected to the first inflation component and the air outlet respectively;

[0014] The bias channel is connected to the second inflation component and the DC channel.

[0015] In some embodiments of this application, the bias channel is L-shaped and includes an input section and a bus section that are perpendicular to each other. The input section is connected to the second inflation assembly, and the bus section is connected to both the input section and the DC channel.

[0016] In some embodiments of this application, the biased air outlet is integrated with a pressure detection module, the pressure detection module comprising:

[0017] A detection chamber, which is connected to the offset air outlet;

[0018] A pressure sensor is disposed within the detection chamber;

[0019] A circuit board, which is mounted on the detection cavity.

[0020] In some embodiments of this application, the detection cavity is provided with a mounting plane that is adapted to the surface of the circuit board, and has a clearance hole for avoiding the air pressure sensor.

[0021] In some embodiments of this application, the first driving assembly includes a first driving member, a first driving wheel, and a first transmission wheel. The first driving wheel is fixedly connected to the output shaft of the first driving member, the first transmission wheel is rotatably disposed on the first air pump and meshes with the first driving wheel, and the first transmission wheel is connected to the first air pump assembly.

[0022] In some embodiments of this application, the first air pump further includes a first bracket, the first transmission wheel is rotatably mounted on the first bracket, the first inflation assembly includes a first cylinder and a first piston, the first bracket is connected to the first drive member and the first cylinder respectively, one end of the first piston slides against the inner wall of the first cylinder, and the other end is hinged to the first transmission wheel.

[0023] In some embodiments of this application, the second drive assembly includes a second drive member, a second drive wheel, and a second transmission wheel. The second drive wheel is fixedly connected to the output shaft of the second drive member, and the second transmission wheel is rotatably disposed on the second air pump and meshes with the second drive wheel. The second transmission wheel is connected to the second air pump assembly.

[0024] In some embodiments of this application, the second air pump further includes a second bracket, the second transmission wheel is rotatably mounted on the second bracket, the second air assembly includes a second cylinder and a second piston, the second bracket is connected to the second drive member and the second cylinder respectively, one end of the second piston slides against the inner wall of the second cylinder, and the other end is hinged to the second transmission wheel.

[0025] Compared to existing technologies, the beneficial effects of this application are:

[0026] This application proposes a dual-cylinder, dual-motor inflation device, comprising a first inflation pump, a second inflation pump, and an offset air outlet. By arranging the first and second inflation pumps side-by-side and connecting the offset air outlet to both pumps, the two pumps are connected in parallel and their air flows converge through the offset air outlet. This effectively reduces the driving load on a single pump, thereby reducing temperature rise and extending service life. The side-by-side arrangement of the first and second pumps also minimizes the overall size of the dual-cylinder, dual-motor inflation device, resulting in a simple and compact structure. Furthermore, by using the offset air outlet with an outlet adjacent to the first pump, the flow path of the first pump is shortened and the flow path of the second pump is lengthened. This asymmetrical flow channel design reduces airflow interference, solves the flow balance problem when the two pumps are connected in parallel, and maintains a compact layout. Attached Figure Description

[0027] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 A perspective view of a dual-cylinder, dual-motor inflation device is shown in some embodiments of this application;

[0029] Figure 2 An exploded view of a dual-cylinder dual-motor inflation device in some embodiments of this application is shown;

[0030] Figure 3 This paper shows an exploded view of another perspective of the dual-cylinder dual-motor air-filling device in some embodiments of this application;

[0031] Figure 4 A cross-sectional schematic diagram of an offset air outlet element is shown in some embodiments of this application.

[0032] Explanation of key component symbols:

[0033] 100-Dual-cylinder dual-motor inflation device;

[0034] 110 - Offset exhaust element; 111 - DC channel; 112 - Offset channel; 1121 - Input section; 1122 - Busbar section; 113 - Exhaust port; 114 - Detection chamber; 1141 - Mounting plane; 1142 - Clearance hole; 1143 - Second fastening hole; 115 - Pressure sensor; 116 - Circuit board; 1161 - First fastening hole;

[0035] 121-First drive assembly; 1211-First drive element; 1212-First drive wheel; 1213-First transmission wheel; 122-First inflation assembly; 1221-First cylinder; 1222-First piston; 123-First bracket;

[0036] 131-Second drive assembly; 1311-Second drive element; 1312-Second drive wheel; 1313-Second transmission wheel; 132-Second inflation assembly; 1321-Second cylinder; 1322-Second piston; 133-Second bracket. Detailed Implementation

[0037] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0038] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0039] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0040] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0041] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0042] like Figure 1 As shown, an embodiment of this application provides a dual-cylinder dual-motor inflation device 100. The dual-cylinder dual-motor inflation device 100 includes a first inflation pump, a second inflation pump, and an offset air outlet 110.

[0043] The first air pump and the second air pump are arranged side by side. The offset air outlet 110 is connected to the first air pump and the second air pump respectively. The offset air outlet 110 is provided with an air outlet 113, which is located adjacent to the first air pump.

[0044] The dual-cylinder, dual-motor inflation device 100 provided in the embodiments of this application, by arranging the first and second inflation pumps side by side and connecting the offset air outlet 110 to both the first and second inflation pumps respectively, allows the two inflation pumps to be connected in parallel and their air output to converge through the offset air outlet 110. This effectively reduces the driving load of a single inflation pump, thereby helping to reduce temperature rise and extend service life. The side-by-side arrangement of the first and second inflation pumps also minimizes the overall size of the dual-cylinder, dual-motor inflation device 100, making its structure simple and compact.

[0045] Meanwhile, by setting an offset air outlet 110 and setting an air outlet 113 adjacent to the first air pump on the offset air outlet 110, the flow path of the first air pump is shortened and the flow path of the second air pump is extended. Through the spatial asymmetric flow channel design, airflow interference is reduced, the flow balance problem when the two air pumps are connected in parallel is solved, and a compact layout is maintained.

[0046] For example, the offset air outlet 110 can be connected to the first air pump and the second air pump by screw connection, snap-fit, or integral molding.

[0047] like Figure 1 As shown, in one embodiment of this application, the first air pump includes a first drive assembly 121 and a first inflation assembly 122. The first drive assembly 121 provides power to the first inflation assembly 122, causing the first inflation assembly 122 to output a first airflow to the biased air outlet 110. The second air pump includes a second drive assembly 131 and a second inflation assembly 132. The second drive assembly 131 provides power to the second inflation assembly 132, causing the second inflation assembly 132 to output a second airflow to the biased air outlet 110.

[0048] In this embodiment, by setting the first driving component 121 to provide power to the first inflation component 122, the first inflation component 122 outputs a first airflow to the biased air outlet 110 under the driving action of the first driving component 121; by setting the second driving component 131 to provide power to the second inflation component 132, the second inflation component 132 outputs a second airflow to the biased air outlet 110 under the driving action of the second driving component 131, thereby multiplying the inflation volume of the dual-cylinder dual-motor inflation device 100 to the inflation device per unit time, and thus multiplying the inflation efficiency.

[0049] Meanwhile, by setting two drive components to drive the two inflation components respectively, the load on a single drive component is effectively reduced, which helps to reduce the temperature rise of the drive component and thus extend its service life.

[0050] like Figure 1 and Figure 4 As shown in the above embodiments of this application, the biased air outlet 110 includes a DC channel 111 and a bias channel 112. The DC channel 111 is connected to the first inflation component 122 and the air outlet 113, respectively, and the bias channel 112 is connected to the second inflation component 132 and the DC channel 111, respectively.

[0051] In this embodiment, by providing a direct current channel 111 connecting the first inflation component 122 and the air outlet 113, the first airflow output from the first inflation component 122 can be directly discharged through the direct current channel 111 and the air outlet 113, shortening the flow path of the first airflow. Simultaneously, by providing an offset channel 112 connecting the second inflation component 132 and the direct current channel 111, the second airflow output from the second inflation component 132 can first converge through the offset channel 112 to the direct current channel 111, and then be discharged through the direct current channel 111 and the air outlet 113, extending the flow path of the second airflow. Through this spatial asymmetric flow channel design, mutual interference between airflows during convergence can be minimized, thereby improving inflation efficiency, solving the flow balance problem when two air pumps are connected in parallel, and maintaining a compact layout. This avoids the technical problem in the prior art where opposing airflows converge, causing mutual interference between airflows during convergence and affecting inflation efficiency.

[0052] like Figure 1 and Figure 4 As shown in the above embodiments of this application, the bias channel 112 is L-shaped and includes an input section 1121 and a bus section 1122 that are perpendicular to each other. The input section 1121 is connected to the second inflation component 132, and the bus section 1122 is connected to the input section 1121 and the DC channel 111 respectively.

[0053] In this embodiment, the input section 1121 and the confluence section 1122 are perpendicular to each other so that the bias channel 112 is "L" shaped. By connecting the input section 1121 to the second inflation assembly 132 and connecting the confluence section 1122 to the input section 1121 and the DC channel 111 respectively, the second airflow output by the second inflation assembly 132 first flows from the input section 1121 to the confluence section 1122, then flows from the confluence section 1122 to the DC channel 111, and finally is discharged from the DC channel 111 through the outlet 113. This effectively extends the flow path of the second airflow and makes the flow path of the second airflow spatially asymmetrical with the flow path of the first airflow, thereby helping to reduce airflow interference.

[0054] like Figure 1 , Figure 2 and Figure 3As shown, in one embodiment of this application, a pressure detection module is integrated on the biased air outlet 110. The pressure detection module includes a detection chamber 114, a pressure sensor 115, and a circuit board 116. The detection chamber 114 is connected to the biased air outlet 110, the pressure sensor 115 is disposed inside the detection chamber 114, and the circuit board 116 covers the detection chamber 114. This enables the detection of air pressure within the biased air outlet 110.

[0055] For example, circuit board 116 can be a printed circuit board, and pressure sensor 115 can be a piezoresistive, capacitive, inductive, or resonant pressure sensor.

[0056] like Figure 2 As shown, in the above embodiments of this application, the detection cavity 114 is provided with a mounting plane 1141 that is adapted to the surface of the circuit board 116, and an avoidance hole 1142 is provided to avoid the air pressure sensor 115.

[0057] In this embodiment, by providing a mounting plane 1141 on the detection cavity 114 that matches the surface of the circuit board 116, the contact area between the circuit board 116 and the detection cavity 114 is increased. This increases the installation stability of the circuit board 116 and improves the sealing performance between the circuit board 116 and the detection cavity 114, preventing air leakage that could affect the accuracy of air pressure detection and inflation efficiency. Simultaneously, by providing a clearance hole 1142 on the detection cavity 114 to allow the air pressure sensor 115 mounted on the circuit board 116 to pass through the clearance hole 1142 and be positioned within the detection cavity 114, the air pressure within the offset air outlet 110 can be detected.

[0058] like Figure 2 As shown in the above embodiments of this application, the dual-cylinder dual-motor inflation device 100 further includes fasteners. The circuit board 116 has a first fastening hole 1161, and the detection cavity 114 has a second fastening hole 1143. The fasteners are sequentially inserted into the first fastening hole 1161 and the second fastening hole 1143 to securely connect the circuit board 116 to the detection cavity 114.

[0059] Therefore, on the one hand, the connection stability between the circuit board 116 and the detection cavity 114 can be guaranteed, and on the other hand, the surface of the circuit board 116 and the mounting plane 1141 can be kept in close contact to ensure the sealing performance between the circuit board 116 and the detection cavity 114.

[0060] For example, the fastener can be a fastening screw, the first fastening hole 1161 can be a through hole or a threaded hole, and the second fastening hole 1143 is a threaded hole.

[0061] like Figure 1 As shown in the above embodiments of this application, the first drive assembly 121 includes a first drive member 1211, a first drive wheel 1212 and a first transmission wheel 1213. The first drive wheel 1212 is fixedly connected to the output shaft of the first drive member 1211. The first transmission wheel 1213 is rotatably disposed on the first air pump and meshes with the first drive wheel 1212. The first transmission wheel 1213 is connected to the first air pump assembly 122.

[0062] In this embodiment, the first drive wheel 1212 is fixedly connected to the output shaft of the first drive member 1211 so as to rotate synchronously and stably with the output shaft of the first drive member 1211, thereby driving the first transmission wheel 1213, which is meshed with the first drive wheel 1212, to rotate on the first air pump. Then, the first transmission wheel 1213 drives the first air assembly 122 to reciprocate and provide the first airflow to the biased air outlet 110.

[0063] For example, the first driving member 1211 can be a motor, and the first driving wheel 1212 and the first transmission wheel 1213 are both helical gears. The first driving wheel 1212 can be fixed on the output shaft of the first driving member 1211 by key connection, screw connection or integral molding.

[0064] like Figure 1 As shown in the above embodiments of this application, the first air pump further includes a first bracket 123, the first transmission wheel 1213 is rotatably disposed on the first bracket 123, the first inflation assembly 122 includes a first cylinder 1221 and a first piston 1222, the first bracket 123 is connected to the first driving member 1211 and the first cylinder 1221 respectively, one end of the first piston 1222 slides against the inner wall of the first cylinder 1221, and the other end is hinged to the first transmission wheel 1213.

[0065] In this embodiment, by sliding one end of the first piston 1222 against the inner wall of the first cylinder 1221 and hinged the other end of the first piston 1222 to the first transmission wheel 1213, the rotation of the first transmission wheel 1213 is converted into the reciprocating linear sliding of the first piston 1222 by utilizing the principle of the eccentric wheel mechanism, thereby compressing air to provide the first airflow to the offset air outlet 110.

[0066] Meanwhile, by setting a first bracket 123 that is connected to the first drive member 1211 and the first cylinder 1221 respectively, the housing of the first drive member 1211, the first bracket 123 and the first cylinder 1221 are fixedly connected as one unit, so that the first transmission wheel 1213 can rotate smoothly on the first bracket 123, thereby ensuring the stability and reliability of the first air pump generating the first airflow function.

[0067] It should be noted that there is a gap between the hinge position of the first piston 1222 and the first transmission wheel 1213 and the axis of the first transmission wheel 1213.

[0068] like Figure 1 As shown in the above embodiments of this application, the second drive assembly 131 includes a second drive member 1311, a second drive wheel 1312, and a second transmission wheel 1313. The second drive wheel 1312 is fixedly connected to the output shaft of the second drive member 1311, and the second transmission wheel 1313 is rotatably disposed on the second air pump and meshes with the second drive wheel 1312. The second transmission wheel 1313 is connected to the second air pump assembly 132.

[0069] In this embodiment, the second drive wheel 1312 is fixedly connected to the output shaft of the second drive member 1311 so as to rotate synchronously and stably with the output shaft of the second drive member 1311, thereby driving the second transmission wheel 1313, which is meshed with the second drive wheel 1312, to rotate on the second air pump. In turn, the second transmission wheel 1313 drives the second air assembly 132 to reciprocate and provide the second airflow to the biased air outlet 110.

[0070] For example, the second drive member 1311 can be a motor, and the second drive wheel 1312 and the second transmission wheel 1313 are both helical gears. The second drive wheel 1312 can be fixed on the output shaft of the second drive member 1311 by key connection, screw connection or integral molding.

[0071] like Figure 1 As shown in the above embodiments of this application, the second air pump further includes a second bracket 133, the second transmission wheel 1313 is rotatably disposed on the second bracket 133, the second air assembly 132 includes a second cylinder 1321 and a second piston 1322, the second bracket 133 is connected to the second drive member 1311 and the second cylinder 1321 respectively, one end of the second piston 1322 slides against the inner wall of the second cylinder 1321, and the other end is hinged to the second transmission wheel 1313.

[0072] In this embodiment, by sliding one end of the second piston 1322 against the inner wall of the second cylinder 1321 and hinged the other end of the second piston 1322 to the second transmission wheel 1313, the rotation of the second transmission wheel 1313 is converted into the reciprocating linear sliding of the second piston 1322 by utilizing the principle of the eccentric wheel mechanism, thereby compressing air to provide a second airflow to the offset air outlet 110.

[0073] Meanwhile, by setting a first bracket 123 that is connected to the second drive member 1311 and the second cylinder 1321 respectively, the housing of the second drive member 1311, the second bracket 133 and the second cylinder 1321 are fixedly connected as one unit, so that the second transmission wheel 1313 can rotate smoothly on the second bracket 133, thereby ensuring the stability and reliability of the second air pump's function of generating the second airflow.

[0074] It should be noted that there is a gap between the hinge position of the second piston 1322 and the axis of the second transmission wheel 1313.

[0075] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0076] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A dual-cylinder, dual-motor inflation device, characterized in that, include: A first air pump and a second air pump are arranged side by side; An offset air outlet is provided, which is connected to the first air pump and the second air pump respectively. The offset air outlet is provided with an air outlet, which is located adjacent to the first air pump.

2. The dual-cylinder, dual-motor inflation device according to claim 1, characterized in that, The first air pump includes a first drive assembly and a first inflation assembly. The first drive assembly is used to provide power to the first inflation assembly so that the first inflation assembly outputs a first airflow to the biased air outlet. The second air pump includes a second drive assembly and a second air inflation assembly. The second drive assembly provides power to the second air inflation assembly so that the second air inflation assembly outputs a second airflow to the biased air outlet.

3. The dual-cylinder, dual-motor inflation device according to claim 2, characterized in that, The offset air outlet includes: A DC channel, which is connected to the first inflation component and the air outlet respectively; The bias channel is connected to the second inflation component and the DC channel.

4. The dual-cylinder, dual-motor inflation device according to claim 3, characterized in that, The bias channel is L-shaped and includes an input section and a busbar section that are perpendicular to each other. The input section is connected to the second inflation assembly, and the busbar section is connected to both the input section and the DC channel.

5. The dual-cylinder, dual-motor inflation device according to claim 1, characterized in that, The offset air outlet component integrates an air pressure detection module, which includes: A detection chamber, which is connected to the offset air outlet; A pressure sensor is disposed within the detection chamber; A circuit board, which is mounted on the detection cavity.

6. The dual-cylinder, dual-motor inflation device according to claim 5, characterized in that, The detection cavity is provided with a mounting plane that is adapted to the surface of the circuit board, and has a clearance hole for avoiding the air pressure sensor.

7. The dual-cylinder, dual-motor inflation device according to claim 2, characterized in that, The first driving assembly includes a first driving member, a first driving wheel, and a first transmission wheel. The first driving wheel is fixedly connected to the output shaft of the first driving member. The first transmission wheel is rotatably disposed on the first air pump and meshes with the first driving wheel. The first transmission wheel is connected to the first air pump assembly.

8. The dual-cylinder, dual-motor inflation device according to claim 7, characterized in that, The first air pump also includes a first bracket, the first transmission wheel is rotatably mounted on the first bracket, the first air assembly includes a first cylinder and a first piston, the first bracket is connected to the first drive member and the first cylinder respectively, one end of the first piston slides against the inner wall of the first cylinder, and the other end is hinged to the first transmission wheel.

9. The dual-cylinder, dual-motor inflation device according to claim 2, characterized in that, The second drive assembly includes a second drive member, a second drive wheel, and a second transmission wheel. The second drive wheel is fixedly connected to the output shaft of the second drive member, and the second transmission wheel is rotatably mounted on the second air pump and meshes with the second drive wheel. The second transmission wheel is connected to the second air pump assembly.

10. The dual-cylinder, dual-motor inflation device according to claim 9, characterized in that, The second air pump also includes a second bracket, the second transmission wheel is rotatably mounted on the second bracket, the second air assembly includes a second cylinder and a second piston, the second bracket is connected to the second drive member and the second cylinder respectively, one end of the second piston slides against the inner wall of the second cylinder, and the other end is hinged to the second transmission wheel.

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