Camping box with built-in inflatable tent and energy-saving inflatable device

Abstract

The present invention discloses a camping box with an inflatable tent and an energy-saving inflation device, which realizes efficient and energy-saving inflation through the innovative multi-stage outward expansion fan and the coordinated work of the dual-outlet topology component. The inflation motor drives the rotor to drive the multi-stage outward expansion fan, generating axial and circumferential composite airflow, which is transported to the cross valve channel through the air duct; the dual-outlet topology component dynamically switches between three inflation modes of parallel, independent efficiency and series efficiency through synchronous valve core position control to adapt to different air pressure requirements. The camping box integrates this device and combines it with the inflatable tent of the annular air path frame to achieve rapid inflation and deflation and structural stability. The present invention solves the problems of high energy consumption, low efficiency and single function of traditional inflation equipment, has the advantages of lightweight, multi-mode adaptability, energy saving and consumption reduction, and is suitable for outdoor camping scenarios.

Description

Technical Field

[0001] The present invention relates to an energy-saving inflatable device, in particular to a camping box with an inflatable tent and the energy-saving inflatable device. Background Art

[0002] Traditional inflatable tent systems generally have the following technical defects:

[0003] Low energy efficiency: Conventional air pumps use a single airflow channel design, resulting in significant eddy current losses and pressure attenuation during airflow. Experimental data shows that the airflow utilization rate of ordinary centrifugal air pumps is less than 60%, and over extended operating time, the efficiency can drop by more than 20% due to motor temperature rise. This energy loss is particularly prominent in outdoor scenarios with limited power supply.

[0004] Single-cycle, single-mode limitations: Traditional piston-type air pumps can only achieve a single inflation mode in one working cycle. During the suction stroke, the airflow only passes through the main channel, and during the exhaust stroke, the airflow cannot be diverted, resulting in low inflation efficiency, a long time to complete tent inflation, and increased energy consumption;

[0005] Insufficient system integration: Current solutions typically integrate the air pump, power supply, and tent as separate modules, resulting in complex component connections, increased overall weight, and long deployment time. Summary of the Invention

[0006] In order to solve the deficiencies of the above technologies, the present invention provides a camping box with an inflatable tent and an energy-saving inflatable device.

[0007] In order to solve the above technical problems, the technical solution adopted by the present invention is: an energy-saving inflation device, comprising:

[0008] The inflatable motor has a stator fixedly mounted in its housing, a rotor coaxially arranged with the stator, and a multi-stage outward expansion fan coaxially connected to the rotor. Air outlets are provided at both ends of the housing, and an air duct is connected to the outside of the circumferential side wall of the housing. The axial end of the multi-stage outward expansion fan is aligned with the inlet of the air duct.

[0009] The dual-output topology component includes a support plate, on which the piston cylinder and the outer shell of the inflation motor are fixedly installed. The rotor of the inflation motor drives the crank slider mechanism through a gear reduction transmission mechanism. The crank slider mechanism is articulated to the active piston, and the active piston is movably arranged in the piston cylinder. The piston cylinder is connected to the cross valve channel. The center of the active piston is connected to the synchronous valve core in the cross valve channel through the synchronous valve stem. The cross valve channel has an independent input path and dual independent output paths. The independent input path is unidirectionally connected to the air guide pipe, and parallel output, independent efficiency-enhancing output and series efficiency-enhancing output are realized through the position control of the synchronous valve core.

[0010] Furthermore, the multi-stage outward expansion fan includes an inclined platform coaxially fixed on the rotor shaft, the outer periphery of the inclined platform is connected to the base end of the radially divergent fan blades through an inner ring, the fan blades extend axially and expand radially outward, the inner starting end of the fan blade near the axial front end is connected to the small ring, the diameter of the small ring is consistent with the outer circumference of the rotor, and the outer terminal end of the fan blade near the rear end extends to the outer circumference of the large ring to form a gradually expanding flow channel from the small ring to the large ring; the axial end of the fan blade extends out of the large ring to form a circumferentially uniformly distributed spaced exhaust port.

[0011] Furthermore, the inlet of the air duct is arranged along the tangential direction of the outer shell, and the inlet of the air duct is aligned with the spaced exhaust ports of the multi-stage outward expansion fan.

[0012] Furthermore, the rotor of the inflation motor drives the crank slider mechanism through the gear reduction transmission mechanism. The crank slider mechanism is articulated to the active piston as follows: a driving gear is installed at the shaft extension end of the support plate through which the rotating shaft of the rotor passes, and a driven reduction gear is engaged with the driving gear. The driven reduction gear is rotatably supported by a bearing embedded in the support plate. The end face of the driven reduction gear is provided with an eccentric shaft which is articulated to the head end of the piston rod, and the tail end of the piston rod is articulated to the active piston.

[0013] Furthermore, the cross valve channel includes a first channel and a second channel connected in a cross shape, the inlet of the first channel is connected to the air duct through a one-way input valve No. 1, the inlet of the second channel is connected to the piston cylinder, the outlet of the first channel is output through a one-way output valve No. 1, and the outlet of the second channel is output through a one-way output valve No. 2.

[0014] Furthermore, the synchronous valve core matching activity is set in the second channel of the cross valve channel, and a T-shaped flow channel is opened in the synchronous valve core. When the synchronous valve core moves to the cross-connection position of the cross valve channel, the inlet of the first channel is connected to the outlet of the first channel and the outlet of the second channel through the T-shaped flow channel.

[0015] Furthermore, the diameter of the synchronization valve stem is smaller than that of the synchronization valve core. During the intake stroke of the active piston, the air flow in the air guide pipe is connected to the piston cylinder through the first channel and the second channel. During the exhaust stroke of the active piston, the piston cylinder compresses the air flow and superimposes the air flow in the first channel to flow through the outlet of the first channel. The piston cylinder synchronously drives the synchronization valve core to compress the air flow in the second channel to flow through the outlet of the second channel.

[0016] Furthermore, a perforated disk is matchedly provided in the second channel near the piston cylinder outlet, the synchronous valve stem is slidably provided in the center of the perforated disk, and a plurality of axial air holes are evenly distributed circumferentially on the perforated disk.

[0017] A camping box with an inflatable tent includes a box body, an energy-saving inflating device fixedly installed on the box body, an edge of an upper support plate of the box body is connected to the inflatable tent, an input end of a first support air pipe of the inflatable tent is connected to an outlet of a first channel through a pipeline, and an input end of a second support air pipe of the inflatable tent is connected to an outlet of a second channel through a pipeline.

[0018] Furthermore, both sides of the upper support plate of the box are hinged with an upper cover through a hinge, and the edge of the upper cover is connected to the inflatable tent; a charging power supply is provided in the box, and a power port is provided on the surface of the box, and the charging power supply is electrically connected to the inflatable motor; a storage drawer is provided on the box.

[0019] The present invention discloses a camping box with a built-in inflatable tent and an energy-saving inflation device. Through the innovative multi-stage outward expansion fan and dual-outlet topology components, the device addresses the high energy consumption, low efficiency, and single-function issues of conventional inflation equipment. The multi-stage outward expansion fan significantly improves airflow utilization and reduces energy loss through a composite axial and circumferential airflow design. The dual-outlet topology component uses a synchronous valve core to dynamically switch between parallel, independent, and series inflation modes within a single intake and exhaust stroke, achieving efficient and energy-saving inflation. Furthermore, the camping box incorporating this device is lightweight, multi-mode adaptive, and offers advantages such as rapid inflation and deflation, a stable structure, and energy savings, perfectly meeting the demands for efficiency, portability, and versatility in outdoor camping scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A three-dimensional diagram of an energy-saving inflatable device.

[0021] Figure 2 This is the front view of the energy-saving inflatable device.

[0022] Figure 3 Schematic diagram of the internal structure of the inflation motor.

[0023] Figure 4 for Figure 3 Enlarged schematic diagram of the structure of the part in the middle circle.

[0024] Figure 5 This is a cross-sectional diagram of the parallel output of the energy-saving inflation device.

[0025] Figure 6 This is a cross-sectional schematic diagram of the independent efficiency-enhancing output and series efficiency-enhancing output of the energy-saving inflation device.

[0026] Figure 7 A partial stereoscopic diagram of the parallel output of the energy-saving inflation device.

[0027] Figure 8 It is a three-dimensional diagram of the synchronous valve stem and synchronous valve core.

[0028] Figure 9A three-dimensional image of a camping box with a built-in inflatable tent.

[0029] Figure 10 A side view of a camping box with a built-in inflatable tent.

[0030] Figure 11 This is a three-dimensional diagram of an inflatable tent.

[0031] In the figure: 1. Housing; 2. Stator; 3. Rotor; 4. Multi-stage outward expansion fan; 5. Air outlet; 6. Air guide tube; 7. Support plate; 8. Piston cylinder; 9. Active piston; 10. Cross valve channel; 11. Synchronous valve core; 12. Synchronous valve stem; 13. Active gear; 14. Driven reduction gear; 15. Eccentric shaft; 16. Bearing; 17. Piston rod; 18. One-way input valve No. 1; 19. One-way output valve No. 1; 20. One-way valve No. 2 Output valve; 21. T-shaped flow channel; 22. Perforated disk; 23. Box; 24. Inflatable tent; 25. First supporting air pipe; 26. Second supporting air pipe; 27. Upper cover; 28. Storage drawer; 30. Power outlet; 31. Crossbeam air pipe; 41. Inclined platform; 42. Inner ring; 43. Fan blades; 44. Small ring; 45. Large ring; 46. Interval exhaust port; 101. First channel; 102. Second channel; 231. Upper support plate. DETAILED DESCRIPTION

[0032] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. Example 1:

[0033] like Figure 1 and Figure 2 The energy-saving inflation device shown in FIG. 1 includes an inflation motor and a dual-outlet topology component. The inflation motor and the dual-outlet topology component achieve efficient inflation through mechanical linkage and airflow coordination. Specifically, Figure 2 and Figure 3 As shown, a stator 2 is fixedly installed in the casing 1 of the inflatable motor, and a rotor 3 coaxial with the stator 2 is rotatably arranged in the casing 1. The stator 2 is positioned circumferentially along the inner wall of the casing 1 and is rigidly fixed in the casing 1 by bolts or interference fit. The rotating shaft of the rotor 3 passes through the center of the inner cavity of the stator 2, and high-precision rolling bearings are pre-installed on the inner sides of the two end covers of the casing 1. The bearing seats are fixed by threads or press-fitting. Air outlets 5 are provided on both end covers of the casing 1, and the air outlets 5 on the two end covers form air flow circulation channels inside the casing 1. The circumferential side walls of the casing 1 are connected to the outside with an air duct 6, and a multi-stage outward expansion fan 4 is coaxially connected to the rotor 3. The axial ends of the multi-stage outward expansion fan 4 are aligned with the inlet of the air duct 6; the air duct 6 is responsible for efficiently collecting the axial and circumferential composite airflow generated by the multi-stage outward expansion fan 4, and accurately transporting it to the dual-outlet topology component along the tangential direction of the casing 1, providing stable airflow input for subsequent supercharging and diversion.

[0034] The multi-stage external expansion fan 4 includes: Figure 4 The inclined platform 41 shown is coaxially fixed on the rotating shaft of the rotor 3. The outer periphery of the inclined platform 41 is connected to the base end of the radially diverging blades 43 through the inner ring 42. The inclined platform 41 not only serves as a connecting seat for the multi-stage outward expansion fan 4 and the rotor 3, but also the conical transition structure of the inclined platform 41 and the inner ring 42 cooperates with the gradually expanding shape of the blades 43, so that the airflow is accelerated and inhaled along the axial direction under the drive of the rotor 3. The blades 43 extend axially and expand radially outward. The inner starting end of the blade 43 near the axial front end is connected with the small ring 44. The diameter of the small ring 44 is consistent with the outer periphery of the rotor 3. The outer terminal end of the blade 43 near the rear end extends to the outer periphery of the large ring 45 to form a gradually expanding flow channel from the small ring 44 to the large ring 45; the axial end of the blade 43 extends out of the large ring 45 to form circumferentially uniformly distributed spaced exhaust ports 46. As shown Figure 2 As shown, the inlet of the air duct 6 is arranged along the circumferential tangent direction of the outer shell 1, and the inlet of the air duct 6 is aligned with the spaced exhaust port 46 of the multi-stage outward expansion fan 4. After radial expansion by the centrifugal action of the fan blades 43, it is finally discharged tangentially at high speed from the outer circumferential spaced position of the large ring 45, realizing the composite airflow output of axial air supply and circumferential outward expansion.

[0035] Furthermore, in the process of circumferential flow collection, the multi-stage outward expansion fan 4 has radial interference with the axial airflow flow path caused by the inclined platform 41, which easily concentrates the airflow with high velocity, significantly increases the static pressure of the airflow, reduces the airflow separation and vortex generation, and then radially expands the airflow through the centrifugal action of the fan blades 43 to enhance the inflation capacity of the spaced exhaust port 46; in the axial direction, the diameter of the small ring 44 is consistent with the outer periphery of the rotor 3, and the gradually expanding flow channel of the fan blades 43 extends axially. The airflow is axially sucked in and accelerated under the drive of the rotor 3, and cooperates with the guiding effect of the outer shell 1 to realize the circulation of the airflow at the air outlets 5 at both ends of the outer shell 1, thereby ensuring the basic cooling requirement of the inflation motor; the two simultaneously form a composite airflow of axial suction and circumferential thrust, and the output under a set of power modes takes into account the dual needs of flow rate and energy saving and cooling.

[0036] like Figure 1 and Figure 2 As shown, the dual-output topology assembly includes a support plate 7, on which a piston cylinder 8 and a housing 1 of an inflatable motor are fixedly mounted. The rotor 3 of the inflatable motor drives a crank slider mechanism through a gear reduction transmission mechanism, and the crank slider mechanism is articulated to the active piston 9. Specifically, Figure 5As shown, a driving gear 13 is installed at the shaft extension end of the support plate 7 through which the rotating shaft of the rotor 3 passes, and a driven reduction gear 14 is meshed with the driving gear 13. The driven reduction gear 14 is rotatably supported by a bearing 16 embedded in the support plate 7. The end face of the driven reduction gear 14 is provided with an eccentric shaft 15 which is hinged to the head end of the piston rod 17. The tail end of the piston rod 17 is hinged to the active piston 9, and the active piston 9 is movably arranged in the piston cylinder 8. When the rotor 3 of the inflation motor rotates, its rotating shaft drives the meshed driven reduction gear 14 through the driving gear 13 at the shaft extension end, and the speed is reduced and the torque is increased through the gear reduction transmission mechanism; the driven reduction gear 14 is supported and rotated by the bearing 16 embedded in the support plate 7, and the eccentric shaft 15 at its end face converts the rotational motion into the reciprocating swing of the piston rod 17. The tail end of the piston rod 17 is hinged to the active piston 9, thereby driving the active piston 9 to perform linear reciprocating motion in the piston cylinder 8.

[0037] The cross valve channel 10 includes a first channel 101 and a second channel 102 connected in a cross-shaped manner. The piston cylinder 8 is connected to the inlet of the second channel 102 of the cross valve channel 10. The center of the active piston 9 is connected to the synchronization valve core 11 in the cross valve channel 10 through the synchronization valve stem 12. The inlet of the first channel 101 is connected to the air guide pipe 6 through the No. 1 one-way input valve 18 to form an independent input path of the cross valve channel 10, wherein the output direction of the No. 1 one-way input valve 18 is one-way output into the cross valve channel 10, the outlet of the first channel 101 is output through the No. 1 one-way output valve 19, and the outlet of the second channel 102 is output through the No. 2 one-way output valve 20, forming a dual independent output path of the cross valve channel 10, wherein the output direction of the No. 1 one-way output valve 19 and the No. 2 one-way output valve 20 is one-way output outside the cross valve channel 10. In this embodiment, all one-way valves are ball valves; the synchronization valve core 11 is matched and movably arranged in the second channel 102 of the cross valve channel 10, as shown Figure 7 and Figure 8 As shown, the synchronization valve core 11 is connected to the active piston 9 downward through the synchronization valve stem 12. A T-shaped flow channel 21 is opened in the synchronization valve core 11. The position control of the synchronization valve core 11 realizes parallel output, independent efficiency-enhancing output and series efficiency-enhancing output.

[0038] When the synchronous valve core 11 moves from top to bottom, the cross valve channel 10 switches to the parallel output mode. Figure 5 and Figure 7As shown, the synchronous valve core 11 moves downward to the cross-connected position of the cross valve channel 10, and the inlet of the first channel 101 is connected to the outlet of the first channel 101 and the outlet of the second channel 102 through the T-shaped channel 21, forming a dual-channel parallel air path. It should be noted that at this time, all one-way valves can use low-rigidity springs to adapt to the output requirements of normal pressure. In this embodiment, when the synchronous valve core 11 slides from top to bottom in a sealed manner, a negative pressure is formed in the local space between the synchronous valve core 11 and the outlet of the second channel 102. At the moment when the T-shaped channel 21 is connected, the negative pressure suction and the thrust airflow of the air duct 6 are superimposed, which can also appropriately accelerate the air flow rate of the first channel 101 and the second channel 102.

[0039] After the parallel output of the cross valve channel 10 is completed, the cross valve channel 10 performs independent efficiency-enhancing output and series efficiency-enhancing output. Previously, during the suction stroke of the active piston 9, the active piston 9 is pulled back, such as Figure 6 As shown, the diameter of the synchronization valve stem 12 is set to be smaller than the synchronization valve core 11, and the air flow in the air duct 6 is sucked into the piston cylinder 8 through the first channel 101 and the second channel 102 to complete pre-charging; then the active piston 9 is compressed and pressurized, and the compressed air flow in the piston cylinder 8 is restricted by the steric resistance of the synchronization valve core 11, and is concentrated and output from the outlet of the first channel 101, and the thrust air flow of the air duct 6 in the first channel 101 is superimposed and output through the outlet of the first channel 101, thereby realizing the series-synergized output of the air duct 6 and the first channel 101; in this process, when the piston cylinder 8 synchronously drives the synchronization valve core 11 to compress, the air flow in the second channel 102 is compressed by the synchronization valve core 11 and is output through the outlet of the second channel 102, thereby realizing the independent synergistic output of the second channel 102.

[0040] Therefore, the cross valve channel 10 can form a multi-mode output capability through the mechanical linkage flow control and fluid dynamic coupling design. The synchronous valve core 11 moves downward to open the T-shaped flow channel 21 to form a dual-channel parallel air path, and uses a low-rigidity spring one-way valve to reduce the flow resistance. Combined with the local negative pressure suction generated by the downward movement of the synchronous valve core 11, the air flow speed of the dual channels is simultaneously increased by 15%-20%, realizing dual-path diversion; during the piston compression stroke, the upper part of the synchronous valve core 11 blocks and closes the second channel 102, forcing the airflow to be concentrated through the first channel 101 for output, and the thrust airflow of the air guide pipe 6 is superimposed on the piston thrust, and the outlet pressure of the first channel 101 is doubled to more than 1.5 times the normal pressure, meeting the high-pressure demand without the need for an additional boosting module, saving more than 35% of energy consumption; the synchronous valve core 11 closes the redundant path during the compression stroke, forcing the airflow of the second channel 102 to be concentrated and output from its outlet, realizing independent boosting.

[0041] The three modes are dynamically switched through valve core position control, which can continuously inflate the same carrier and adapt to different working conditions. For example, the parallel mode supplements the filling of the tent body, the independent mode stably maintains pressure compensation, and the series mode strengthens the support structure with high pressure. Compared with the traditional single-channel system, the energy saving effect and inflation speed are significantly improved, there is no dependence on the electronic control unit (ECU), and the reliability is also improved, which perfectly matches the lightweight and high-efficiency requirements of outdoor equipment.

[0042] like Figure 7 As shown, a perforated disk 22 is provided in the second passage 102 near the outlet of the piston cylinder 8. The synchronous valve stem 12 is slidably disposed in the center of the perforated disk 22. The perforated disk 22 has a plurality of axial air holes evenly distributed circumferentially. The perforated disk 22 provides axial guidance and mechanical support for the synchronous valve stem 12, ensuring more stable linear motion of the synchronous valve core 11 within the second passage 102, reducing the risk of deflection or sticking, and thus improving the reliability of the valve core's operation. Furthermore, the circumferentially distributed axial air holes on the perforated disk 22 can divide the compressed airflow into multiple streams, avoiding localized high pressure or turbulence caused by concentrated airflow, and also facilitating the stable operation of the synchronous valve core 11. Example 2:

[0043] like Figure 9 and Figure 10 As shown, this embodiment discloses a camping box with an inflatable tent, including a box body 23. The box body 23 is made of high-strength lightweight materials (such as aluminum alloy or engineering plastics), and the energy-saving inflatable device disclosed in Example 1 is fixedly installed inside the box body 23. The upper support plate 231 of the box body 23 is a rectangular flat plate structure, and its edge is fixedly connected to the bottom edge of the inflatable tent 24 by a sealing strip. The input ends of the first support air pipe 25 and the second support air pipe 26 of the inflatable tent 24 are connected to the first channel 101 outlet and the second channel 102 outlet of the energy-saving inflatable device through flexible pipes (such as silicone hoses), and of course, rigid pipes can also be used for connection. As shown Figure 11 As shown, the first support air pipe 25 and the second support air pipe 26 are laterally connected via a crossbeam air pipe 31, forming an integrated, interconnected air path framework. This ensures that the tent body quickly takes shape after inflation while maintaining structural stability. It should be understood that the ends of the first and second support air pipes 25 and 26 not connected to the energy-saving inflator can be sealed. In other embodiments, one-way air inlet valves can be installed at the ends of the first and second support air pipes 25 and 26 to prevent overfilling. In other embodiments, further intelligence can be achieved by adding air pressure sensors and micro-solenoid valves to monitor the pressure in the air pipes in real time. When the pressure falls below a threshold, the solenoid valve opens and works in conjunction with the inflator to replenish air. Once the pressure reaches the target, the solenoid valve automatically closes, maintaining dynamic pressure and ensuring long-term stability of the tent.

[0044] The upper support plate 231 of the box 23 is hingedly connected to an upper cover 27 on both sides via stainless steel hinges. The upper cover 27 is a foldable design. When unfolded, it expands the support area around the upper support plate 231. The upper cover 27 is connected to legs. When the upper cover 27 is stowed, it can press down on the collapsed tent body, making the entire box 23 more compact. The edge of the upper cover 27 is connected to the top edge of the inflatable tent 24 via a detachable buckle. The box 23 has an independent compartment inside for installing a charging power supply (such as a lithium battery pack). Its location near the bottom of the box 23 lowers the center of gravity and improves stability. The surface of the box 23 is provided with a waterproof power port 30 (such as an IP67 standard interface). The charging power supply is electrically connected to the driving motherboard of the inflation motor via internal wires. The charging power supply can also be set to support outdoor power expansion or solar charging. A slide-type storage drawer 28 is provided on the front side of the box body 23. The interior of the drawer is divided into multiple small compartments for storing items such as camping tools, inflatable pipe accessories, etc., and an anti-slip handle and a locking device are provided on the outer surface of the drawer.

[0045] In addition, the following components can be added to the box 23 to enhance versatility, such as an integrated LED lighting system (fixed to the top of the box 23 by magnets or slides to provide night lighting), a foldable table top (hidden inside the box wall, and used as a temporary workbench when pulled out and unfolded), a moisture-proof storage compartment (with built-in desiccant for storing sensitive electronic equipment or clothing), a backup power expansion interface (supporting external solar panels or vehicle power), a multi-functional tool rack (using buckles to fix common tools such as folding shovels, ropes, etc.), a special compartment for first aid kits (with a waterproof sealing design), and a portable stove storage slot suitable for small gas cylinders and cooking utensils. The above components are integrated through modular design to ensure compatibility with existing structures such as slides, hinges, and Velcro, taking into account space utilization and the diverse needs of outdoor scenes.

[0046] The above embodiments are not limitations of the present invention, and the present invention is not limited to the above examples. Any changes, modifications, additions or substitutions made by technicians in this technical field within the scope of the technical solution of the present invention also fall within the scope of protection of the present invention.

Claims

1. An energy-saving inflatable device, characterized in that: include: An inflatable motor, wherein a stator (2) is fixedly mounted in a housing (1), a rotor (3) coaxial with the stator (2) is rotatably arranged in the housing (1), a multi-stage outward expansion fan (4) is coaxially connected to the rotor (3), air outlets (5) are provided at both ends of the housing (1), an air duct (6) is connected to the outside of the circumferential side wall of the housing (1), and an axial end of the multi-stage outward expansion fan (4) is aligned with the inlet of the air duct (6); A dual-output topology component comprises a support plate (7), a piston cylinder (8) and a housing (1) of an air-charging motor fixedly mounted on the support plate (7), a rotor (3) of the air-charging motor driving a crank slider mechanism through a gear reduction transmission mechanism, the crank slider mechanism articulating an active piston (9), the active piston (9) being movably arranged in the piston cylinder (8), the piston cylinder (8) being connected to a cross valve channel (10), the center of the active piston (9) being connected to a synchronous valve core (11) in the cross valve channel (10) through a synchronous valve stem (12), the cross valve channel (10) having an independent input path and dual independent output paths, the independent input path being unidirectionally connected to an air guide pipe (6), and realizing parallel output, independent efficiency-enhancing output and series efficiency-enhancing output through position control of the synchronous valve core (11).

2. The energy-saving inflatable device according to claim 1, characterized in that: The multi-stage outward expansion fan (4) comprises an inclined platform (41) coaxially fixed on the rotating shaft of the rotor (3), the outer periphery of the inclined platform (41) is connected to the base end of the radially divergent fan blade (43) through the inner ring (42), the fan blade (43) extends axially and expands radially outward, the inner starting end of the fan blade (43) near the axial front end is connected to the small ring (44), the diameter of the small ring (44) is consistent with the outer periphery of the rotor (3), the outer terminal end of the fan blade (43) near the rear end extends to the outer periphery of the large ring (45) to form a gradually expanding flow channel from the small ring to the large ring; the axial end of the fan blade (43) extends out of the large ring (45) to form a circumferentially uniformly distributed spaced exhaust port (46).

3. The energy-saving inflatable device according to claim 2, characterized in that: The inlet of the air duct (6) is arranged along the circumferential tangent direction of the housing (1), and the inlet of the air duct (6) is aligned with the spaced exhaust port (46) of the multi-stage outward expansion fan (4).

4. The energy-saving inflatable device according to claim 1, characterized in that: The rotor (3) of the inflation motor drives a crank slider mechanism through a gear reduction transmission mechanism, and the crank slider mechanism is hinged to the active piston (9) in the following manner: a driving gear (13) is installed at the shaft extension end of the support plate (7) through which the rotating shaft of the rotor (3) passes, and a driven reduction gear (14) is meshed on the driving gear (13). The driven reduction gear (14) is rotatably supported by a bearing (16) embedded in the support plate (7), and an eccentric shaft (15) is provided on the end surface of the driven reduction gear (14) and is hinged to the head end of the piston rod (17), and the tail end of the piston rod (17) is hinged to the active piston (9).

5. The energy-saving inflatable device according to claim 1, characterized in that: The cross valve channel (10) comprises a first channel (101) and a second channel (102) connected in a cross-shaped manner, wherein the inlet of the first channel (101) is connected to the air guide pipe (6) via a first one-way input valve (18), the inlet of the second channel (102) is connected to the piston cylinder (8), the outlet of the first channel (101) is output via a first one-way output valve (19), and the outlet of the second channel (102) is output via a second one-way output valve (20).

6. The energy-saving inflatable device according to claim 5, characterized in that: The synchronous valve core (11) is arranged in a matching manner in the second channel (102) of the cross valve channel (10), and a T-shaped flow channel (21) is provided in the synchronous valve core (11). When the synchronous valve core (11) moves to the cross-connected position of the cross valve channel (10), the inlet of the first channel (101) is connected to the outlet of the first channel (101) and the outlet of the second channel (102) through the T-shaped flow channel (21).

7. The energy-saving inflatable device according to claim 5, characterized in that: The diameter of the synchronous valve stem (12) is smaller than that of the synchronous valve core (11). During the intake stroke of the active piston (9), the air flow in the air guide pipe (6) is connected to the piston cylinder (8) through the first channel (101) and the second channel (102). During the exhaust stroke of the active piston (9), the piston cylinder (8) compresses the air flow and superimposes the air flow in the first channel (101) to flow through the outlet of the first channel (101). The piston cylinder (8) synchronously drives the synchronous valve core (11) to compress the air flow in the second channel (102) to flow through the outlet of the second channel (102).

8. The energy-saving inflatable device according to claim 6, characterized in that: A perforated disk (22) is matched with the second channel (102) near the outlet of the piston cylinder (8), and the synchronous valve stem (12) is slidably arranged in the center of the perforated disk (22). The perforated disk (22) has a plurality of axial air holes uniformly distributed in the circumferential direction.

9. A camping box with an inflatable tent, comprising a box body (23), characterized in that: The box body (23) is fixedly mounted with the energy-saving inflatable device according to any one of claims 1 to 8, and the edge of the upper support plate (231) of the box body (23) is connected to the inflatable tent (24), the input end of the first support air pipe (25) of the inflatable tent (24) is connected to the outlet of the first channel (101) through a pipeline, and the input end of the second support air pipe (26) of the inflatable tent (24) is connected to the outlet of the second channel (102) through a pipeline.

10. The camping box with an inflatable tent according to claim 9, characterized in that: An upper cover (27) is hingedly connected to both sides of the upper support plate (231) of the box body (23), and the edge of the upper cover (27) is connected to the inflatable tent (24); a charging power supply is provided in the box body (23), and a power outlet (30) is provided on the surface of the box body (23); the charging power supply is electrically connected to the inflatable motor; and a storage drawer (28) is provided on the box body (23).

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