Air pressure adjusting method and air pressure adjusting equipment for inflatable object

Abstract

The invention relates to the technical field of air pressure control, and discloses an air pressure adjusting method and air pressure adjusting equipment for an inflatable object. The method comprises the following steps: determining a target air pressure value, wherein the target air pressure value is lower than the current air pressure value of an inflatable object; exhausting air in the inflatable object to reduce the air pressure value of the inflatable object; and when the air pressure value of the inflatable object is lower than the target air pressure value, supplementing air to the inflatable object. According to the method, the mode that the air pressure value of the inflatable object is greatly reduced is adopted, so that the inflatable object crosses the target air pressure value and falls into the range lower than the target air pressure value, and the time expenditure caused by stepping type deflation is effectively reduced. Moreover, after the air pressure of the inflatable object is lower than the target air pressure value, reverse adjustment is carried out through the controllable inflation process, accurate adjustment of the air pressure value of the inflatable object is facilitated, and the contradiction between the adjustment speed and the adjustment precision in a traditional stepping adjustment mode is solved.

Description

Technical Field

[0001] This application relates to the field of air pressure control technology, and in particular to an air pressure regulation method and air pressure regulation device for an inflatable object. Background Technology

[0002] Currently, in the daily use of various inflatable objects (such as balls, tires, and inflatable mats), it is usually necessary to adjust the internal air pressure to a specific range through inflation and deflation operations to meet basic performance and safety requirements.

[0003] In some applications, it is necessary to precisely adjust the internal air pressure of inflatable objects to a specific target air pressure value (e.g., for professional ball sports such as football, rugby, or basketball). To make adjustments quickly and conveniently, air pressure regulating devices are typically used, employing closed-loop control to bring the internal air pressure of the inflatable object to the set target air pressure value.

[0004] When a pressure regulating device expels gas from inside an inflatable object through a venting valve or exhaust channel, it is limited by factors such as the relatively fast gas flow rate, the relatively drastic changes in internal air pressure, and the sampling performance of the pressure sensor. Existing pressure regulating devices usually adopt a gradual approximation strategy, repeatedly venting gas with a small amount of gas, re-detecting the air pressure after each venting, and then deciding whether to continue venting based on the detection results, so as to bring the air pressure of the inflatable object close to the set target air pressure value.

[0005] However, this step-by-step venting adjustment method has limitations in terms of speed and accuracy. On the one hand, when higher pressure adjustment accuracy is required, the amount of air vented in a single step must be set smaller, and the number of venting steps must be increased, with measurements and judgments performed between each step, which significantly increases the adjustment time. On the other hand, if the number of venting steps is reduced and the amount of air vented in a single step is increased to improve the adjustment speed, the effect of gradual approximation will be weakened, and the deviation between the final pressure value and the target pressure value will increase. Summary of the Invention

[0006] This application provides a method and device for regulating the air pressure of an inflatable object, which aims to solve the shortcomings of existing air pressure regulating devices that cannot simultaneously achieve both regulation speed and air pressure regulation accuracy.

[0007] In a first aspect, embodiments of this application provide a method for regulating the air pressure of an inflatable object. The method includes: determining a target air pressure value, wherein the target air pressure value is lower than the current air pressure value of the inflatable object; discharging gas from the inflatable object to reduce its air pressure value; and replenishing the inflatable object with gas when its air pressure value is lower than the target air pressure value.

[0008] At least one beneficial effect of the air pressure regulation method provided in this application embodiment is that when it is necessary to reduce the air pressure value of an inflatable object to a target air pressure value, it adopts a method of significantly reducing the air pressure value of the inflatable object, so that it crosses the target air pressure value and falls into a range below the target air pressure value, effectively reducing the time cost caused by the aforementioned step-by-step deflation. Moreover, taking advantage of the relatively easier control of air pressure changes during the inflation process, after the air pressure of the inflatable object falls below the target air pressure value, reverse adjustment is performed through a controllable inflation process, which helps to achieve precise adjustment and control of the air pressure value of the inflatable object, and effectively solves the contradiction between adjustment speed and adjustment accuracy in the step-by-step adjustment method.

[0009] Secondly, this application embodiment discloses a pressure regulating device. The pressure regulating device includes: an inflation actuator configured to perform an inflation operation by supplying gas to an inflatable object via a connecting pipe; a deflation actuator configured to perform a deflation operation by discharging gas from the inflatable object via a connecting pipe; a pressure sensor configured to collect the pressure value of the inflatable object; and a controller communicatively connected to the pressure sensor, the deflation actuator, and the inflation actuator. The controller is configured to: collect the pressure value of the inflatable object via the pressure sensor; determine a current target pressure value; control the deflation actuator to perform a deflation operation when the target pressure value is less than the pressure value of the inflatable object; and control the inflation actuator to perform an inflation operation after the pressure value of the inflatable object decreases below the target pressure value due to the deflation operation.

[0010] At least one beneficial effect of the air pressure regulating device provided in this application embodiment is that: the controller executes the air pressure control logic of the above-mentioned air pressure regulating method. During the process of adjusting the current air pressure value of the inflatable object to a lower target air pressure value, the deflation stage can adopt a relatively large deflation operation to reduce the air pressure to below the target air pressure value in one go or in a few steps, thereby reducing the time consumption caused by multiple small-step deflations. Moreover, the inflation actuator performs reverse regulation of the air pressure of the inflatable object with a controllable inflation volume, which is beneficial to achieve a precise approximation of the target air pressure value at a high regulation speed. Thus, it can achieve good air pressure regulation speed and air pressure regulation accuracy with low system cost and relatively simple hardware structure. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the specific embodiments of this application, the accompanying drawings used in the description of the specific embodiments will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0012] Figure 1 This is a flowchart of the air pressure regulation method according to an embodiment of this application; Figure 2 This is a flowchart of the sub-processes of steps S120 and S130 of the air pressure regulation method according to an embodiment of this application. Figure 3 This is a flowchart of a method for regulating air pressure according to another embodiment of this application; Figure 4 This is a schematic diagram of the air pressure regulating device according to an embodiment of this application; Figure 5 This is a schematic diagram of a pressure regulating device according to another embodiment of this application; Figure 6 This is a schematic diagram of the gas path of the connecting pipeline according to an embodiment of this application; Figure 7 This is a schematic diagram of the air circuit of the air pressure regulating device according to an embodiment of this application; Figure 8 This is a schematic diagram of the airflow during the inflation operation of the air pressure regulating device according to an embodiment of this application; Figure 9 This is a schematic diagram of the airflow during the exhaust operation of the air pressure regulating device according to an embodiment of this application; Figure 10 This is a schematic diagram of the airflow when the air pressure regulating device of this application performs a negative pressure intake operation; Figure 11 This is a schematic diagram of the air circuit of a pressure regulating device according to another embodiment of this application; Figure 12 This is a schematic diagram of the air circuit of a pressure regulating device according to another embodiment of this application; Figure 13 This is a schematic diagram of the process steps executed by the controller of the air pressure regulating device according to an embodiment of this application; Figure 14 This is a schematic diagram illustrating the change of air pressure value over time in the air pressure reduction process according to an embodiment of this application; Figure 15 This is a schematic diagram illustrating the change of air pressure value over time during the air pressure adjustment process according to an embodiment of this application. Figure 16 This is a schematic diagram of a pressure regulating device according to another embodiment of this application; Figure 17 This is a schematic diagram of an air pump according to an embodiment of this application from a first-view perspective; Figure 18This is a schematic diagram of the air pump according to an embodiment of this application from a second perspective; Figure 19 This is an exploded structural diagram of the air pump according to an embodiment of this application; Figure 20 This is an exploded structural diagram of the connecting pipeline of the air pump according to an embodiment of this application; Figure 21 This is a schematic diagram of the connection pipeline of the air pump according to an embodiment of this application; Figure 22 This is a schematic diagram of the structure of the air pump with the connecting pipe removed according to an embodiment of this application, showing the situation where gas moves from the first working interface through the connecting pipe to the air nozzle assembly; Figure 23 This is a schematic diagram of the structure of the air pump with the connecting pipe removed according to an embodiment of this application, showing the situation where gas moves from the nozzle assembly through the connecting pipe to the second working interface; Figure 24 This is a schematic diagram of the solenoid valve of the air pump's connecting pipeline switching between working state 1 and working state 2 according to an embodiment of this application. Detailed Implementation

[0013] To facilitate understanding of this application, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as "fixed to" another element, it can be directly on the other element, or one or more intermediate elements may exist between them. When an element is described as "connected" to another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them. The terms "upper," "lower," "inner," "outer," "vertical," "horizontal," etc., used in this specification indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and 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. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0014] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the application. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0015] Furthermore, the technical features involved in the different embodiments of this application described below can be combined with each other as long as they do not conflict with each other.

[0016] Figure 1 This is a flowchart illustrating the air pressure regulation method provided in an embodiment of this application. This air pressure regulation method can be performed by any suitable type of air pressure regulation device with inflation and deflation functions to achieve precise air pressure regulation for inflatable objects.

[0017] In this application, "inflatable object" refers to an object with a sealed cavity inside, the air pressure of which can be adjusted through inflation and deflation operations. This includes, but is not limited to: various balls (e.g., soccer balls, basketballs, or rugby balls), vehicle tires, inflatable mats, inflatable beds, inflatable seats, airbag devices, cushioning bags, and other inflatable products that require adjustment of internal air pressure to meet performance or safety requirements.

[0018] This application does not limit the specific form and use of inflatable objects. Any object that can maintain a specific air pressure inside and whose air pressure can be adjusted by inflation and / or deflation operations can be considered an inflatable object.

[0019] like Figure 1 As shown, the air pressure regulation method includes the following steps: S110. Determine the target air pressure value.

[0020] The target air pressure value is set according to specific usage requirements. It represents the target air pressure level that the inflatable object is expected to achieve in the current scenario.

[0021] In this embodiment, the target air pressure value is lower than the current air pressure value of the inflatable object. In other words, Figure 1 The air pressure regulation method shown is a method for reducing the air pressure value of an inflatable object.

[0022] S120. Discharge the gas inside the inflatable object to reduce the air pressure value of the inflatable object.

[0023] "Releasing gas from the inflatable object" refers to the process of controllingly opening the gas outflow channel through a gas passage connected to the inflatable object, allowing the gas inside the inflatable object to be released into the external environment, thereby reducing the gas pressure value of the inflatable object.

[0024] Specifically, based on the needs of practical applications, any suitable method can be used to expel gas from an inflatable object. For example, depending on the timing characteristics of the expulsion, continuous, segmented, intermittent, or pulsed expulsion methods can be used. Another example is the use of "extraction" or "venting" methods, depending on whether active suction is applied during gas expulsion.

[0025] The "extraction method" refers to using a device with suction capabilities (such as a vacuum pump, negative pressure pump, or air pump with suction function) to actively extract the gas inside the inflatable object through a connecting pipeline, quickly removing it from the object and discharging it to the external environment. When using the extraction method, the internal gas is driven out by the pressure difference provided by the suction device, resulting in a high exhaust velocity.

[0026] "Release method" refers to creating a communication channel between the inflatable object and the external environment (e.g., opening a vent valve, check valve, or venting structure on the connecting pipeline), relying on the pressure difference between the internal air pressure of the inflatable object and the external air pressure to drive the gas inside the inflatable object to diffuse and flow out into the external environment. When using the release method, its implementation structure is simple and does not require additional power.

[0027] S130. When the air pressure of the inflatable object is lower than the target air pressure, replenish the inflatable object with gas.

[0028] The "air pressure value of the inflatable object" is a parameter used to characterize the current actual air pressure state of the inflatable object. It can be obtained directly or indirectly through any suitable method and represented in any suitable way, without specific limitations here.

[0029] "Supplementing an inflatable object with gas" refers to the controlled delivery of gas to an inflatable object through an inflation passage connected to the object, so that the internal pressure value gradually increases from a state below the target pressure value and approaches the target pressure value.

[0030] It should be noted that the air pressure value of the inflatable object will decrease as step S120 is executed. However, during the process of the air pressure value of the inflatable object decreasing, it is not required to control the air pressure value of the inflatable object to be close to the target air pressure value. It is only necessary to ensure that the air pressure value of the inflatable object falls into a relatively wide range of air pressure values ​​that are lower than the target air pressure value.

[0031] In some embodiments, please continue reading Figure 1 After step S130, the method further includes: S140. During the process of replenishing gas to the inflatable object, check whether the gas pressure value of the inflatable object has reached the target gas pressure value. If yes, proceed to step S150. If no, continue to step S130.

[0032] The air pressure value of the inflatable object can be obtained by means of a barometer installed on the inflatable object or a pressure sensor connected to the inflatable object.

[0033] Specifically, the air pressure value can be detected by continuous detection or periodic detection. The specific detection frequency and the conditions for determining whether the target air pressure value has been reached (e.g., falling near the target air pressure value within the allowable error range) can be set according to specific application requirements, and are not specifically limited here.

[0034] S150, Stop supplying gas to inflatable objects.

[0035] "Stop replenishing gas" means closing the inflation passage connecting to the inflatable object, ceasing the supply of gas to the inflatable object, and thus terminating the current pressure adjustment operation. After stopping gas replenishment, the pressure of the inflatable object is stabilized near the target pressure value and can be used at the set target pressure value.

[0036] In some embodiments, such as Figure 2 As shown, step S130 specifically includes: S131. During the process of discharging gas from an inflatable object, the air pressure value of the inflatable object is detected.

[0037] S132. Determine whether the air pressure value of the inflatable object falls within the release pressure range. If yes, proceed to step S133; otherwise, continue to step S120.

[0038] The pressure range for releasing gas is a reference pressure interval calculated based on the target pressure value. It falls within a range below the target pressure value and serves as the criterion for determining whether step S120 should be terminated.

[0039] In other words, when the current pressure of an inflatable object enters the range of the release pressure, it can be considered that the adjustment target of the release phase has been completed, and it is necessary to stop releasing air.

[0040] Specifically, the venting pressure range can be set in various ways to adapt to the needs of different application scenarios. For example, the venting pressure range can be determined by offsetting downwards by a certain percentage of the target pressure value, or it can be determined by a fixed pressure difference relative to the target pressure value.

[0041] For example, assume the target pressure is P_target. When determined by a proportional offset, the upper limit of the venting pressure range is set to P_high = k1 × P_target, where k1 is a proportionality coefficient less than 1, and the lower limit of the venting pressure range is 0. When determined by a fixed pressure difference, the upper limit of this venting pressure range is set to P_high = P_target. ΔP1. Where ΔP1>0, the lower limit of the venting pressure range is 0.

[0042] S133. Stop discharging gas from the inflatable object.

[0043] "Stop venting gas" refers to closing the venting passage between the inflatable object and the outside world, so that the gas inside the inflatable object is no longer vented, thereby keeping the gas pressure of the inflatable object stable within the venting pressure range.

[0044] S134. After stopping the discharge of gas from the inflatable object, replenish the inflatable object with gas.

[0045] After executing step S133, the pressure value of the inflatable object is further increased gradually from the release pressure range by supplementing gas.

[0046] The air pressure regulation method of this application sets the venting air pressure range within a range relatively close to the target air pressure value, which can avoid the need for a long inflation process to return to the target air pressure value due to excessive air release during the venting stage, thus helping to improve the overall air pressure regulation efficiency.

[0047] Moreover, during the venting phase, it is only necessary to control the gas pressure value to fall within the preset range, without the need for precise control on a single target. The accuracy requirements for venting control are relatively low, which is also conducive to improving the execution speed of the venting phase. A relatively coarse but faster gas discharge control method can be used.

[0048] In other embodiments, the air pressure inside the inflatable object can be controlled to drop to within the release pressure range by controlling the deflation time, without needing to continuously monitor the air pressure during the process of venting the gas from the inflatable object.

[0049] For example, by conducting multiple calibration experiments in advance, the amount of gas discharged from the inflatable object per unit time and the corresponding pressure change relationship can be simulated under various common operating conditions (e.g., under specific ambient temperature, ambient pressure, and initial air pressure of the inflatable object). Based on the calibration experiment results, the deflation time range required for the air pressure value inside the inflatable object to decrease from the initial air pressure to the deflation pressure range can be determined.

[0050] In actual pressure regulation, the corresponding deflation time is determined based on the type of inflatable object and its target pressure value, and the deflation time is controlled according to this time when the gas is released. Therefore, since this deflation time is an approximate time determined based on calibration test results, after this deflation time, the inflatable object will generally fall within the deflation pressure range.

[0051] Specifically, when the deflation time is reached and the gas discharge from the inflatable object is stopped, if the detected gas pressure value of the inflatable object still does not fall within the deflation pressure range, a shorter gas discharge process can continue.

[0052] Preferably, different deflation time parameters can be preset for different inflatable objects of different specifications. After determining the type or specification of the currently connected inflatable object, the deflation time parameter corresponding to that inflatable object is selected to control the deflation process, thereby reliably reducing the air pressure inside the inflatable object to the deflation pressure range without the need for real-time air pressure monitoring. In some embodiments, to improve the stability and control accuracy of air pressure detection during subsequent inflation adjustment, please refer to [further details needed]. Figure 2 The following steps are also included between steps S133 and S134: S1331, The inflatable object enters a static state.

[0053] S1332. Determine whether the inflatable object that has entered the static state meets the preset inflation conditions. If yes, proceed to step S134. If no, continue to maintain the static state.

[0054] The "static state" refers to a state in which no new operations are applied to the inflatable object after step S133, thus placing the inflatable object in a basically static state without additional gas flow interference. By putting the inflatable object into a static state, short-term fluctuations in the detected air pressure value of the inflatable object caused by factors such as instantaneous airflow, gas temperature changes, and material elastic rebound can be effectively eliminated.

[0055] "Inflation conditions" are a set of pre-defined triggering conditions or judgment rules used to determine whether the air pressure value of an inflatable object has entered a stable state. These inflation conditions can consist of a single condition of one dimension, or they can be composed of multiple conditions of different dimensions in a logical combination.

[0056] Specifically, the inflation conditions include: the time for the inflatable object to enter a static state reaches a preset waiting time and the change in the air pressure value of the inflatable object is less than a preset standard.

[0057] The waiting time is determined through empirical setting, experimental calibration, or table lookup, based on specific application factors such as the volume of the inflatable object, material properties, connecting pipe structure, ambient temperature, and required testing stability. For example, it may be several seconds, tens of seconds, or even longer; no specific limit is specified here.

[0058] Once the timing result reaches or exceeds the waiting time, it can be considered that the air pressure value of the inflatable object has basically stabilized. At this point, the operation of replenishing gas to the inflatable object is started, thus entering the subsequent inflation stage of adjusting the pressure by inflation.

[0059] The range of pressure variation of an inflatable object refers to the degree or range of change in the pressure of the inflatable object over time within a specific observation window. This can be characterized by any suitable type of statistical data.

[0060] For example, the difference between the maximum and minimum values, the difference between adjacent measurement times, or the statistically significant fluctuation, obtained by comparing or calculating multiple air pressure measurements acquired within a preset time interval.

[0061] For example, after continuously acquiring N air pressure values ​​(N is a positive integer, such as 3 or 5) at a preset sampling period, it is calculated whether the difference between any two adjacent air pressure values ​​is less than a preset air pressure threshold. If so, the preset amplitude standard is considered to be met. If not, the amplitude standard is considered not to be met.

[0062] It is understood that the specific value or setting method of the preset amplitude standard corresponds to the statistical data type used for the pressure change amplitude of the inflatable object. Those skilled in the art can adjust and modify the unit, numerical value, relative / absolute form, and judgment logic of the amplitude standard according to the specific method of representing the pressure change amplitude selected.

[0063] The air pressure regulation method provided in this application allows the inflatable object to enter a static state after deflation, which naturally stabilizes the internal air pressure and reduces instantaneous air pressure fluctuations. This method of waiting for the air pressure to stabilize before replenishing gas helps improve the stability of air pressure detection results and the accuracy of inflation control.

[0064] In some embodiments, to accelerate gas discharge and further improve efficiency, a suitable discharge method can be selected based on the gas pressure value of the inflatable object detected and determined in step S131 above. Please continue reading Figure 2 Step S120 specifically includes the following steps: S121. Determine whether the air pressure of the inflatable object is lower than or equal to a preset threshold. If yes, proceed to step S122; if no, proceed to step S123.

[0065] The preset threshold is a reference value (e.g., 3 psi) set based on one or more practical application factors, such as the type of inflatable object, the typical operating pressure range, and the difference between the inflatable object and the ambient atmospheric pressure. It is used to measure the magnitude of the difference between the inflatable object and the ambient atmospheric pressure.

[0066] S122. Discharge the gas inside the inflatable object by extraction.

[0067] Specifically, when the air pressure of the inflatable object is lower than or equal to the preset threshold, it indicates that the internal air pressure of the inflatable object is very close to the external ambient air pressure. At this time, if only the pressure difference from natural release is relied upon, the exhaust efficiency will be significantly reduced, and an extraction method needs to be used to accelerate the gas discharge.

[0068] S123. Discharge the gas inside the inflatable object by means of venting.

[0069] When the air pressure of the inflatable object exceeds the preset threshold, it indicates a relatively large pressure difference between the internal air pressure of the inflatable object and the external ambient air pressure. Therefore, a relatively simple venting method can be used to vent the air, resulting in a faster venting speed.

[0070] In other embodiments, this application also provides a method for regulating air pressure. For example... Figure 3 As shown, the air pressure regulation method first determines the relationship between the set target air pressure value and the current air pressure value of the inflatable object.

[0071] On the one hand, when the target air pressure value is lower than the current air pressure value of the inflatable object, the air pressure adjustment method executes the method steps described in one or more of the above embodiments to lower the air pressure value of the inflatable object to the target air pressure value (e.g., as...). Figure 3 As shown, steps S120 to S150 are executed sequentially.

[0072] On the other hand, please continue reading Figure 3 When the target air pressure value is greater than the air pressure value of the inflatable object, the air pressure adjustment method includes the following steps: S160. Add gas to the inflatable object until the pressure value of the inflatable object reaches the target pressure value.

[0073] By continuously supplying gas to the inflatable object, the air pressure of the inflatable object can be gradually increased. Once the target air pressure value is reached, the gas supply to the inflatable object is stopped, thereby stabilizing the air pressure value at the target air pressure value and achieving air pressure regulation.

[0074] The "target pressure value" refers to the desired pressure level when adjusting the pressure of an inflatable object. It can be a specific nominal pressure value, or it can be considered a target pressure range centered on that nominal pressure value, allowing for a set margin of error. When the pressure value of the inflatable object is detected to enter the target pressure range, it is also considered to have reached the target pressure value.

[0075] Specifically, the gas replenishment process in step S160 can also employ different control methods such as continuous gas replenishment, segmented gas replenishment, or intermittent gas replenishment, depending on the specific application requirements. Furthermore, the gas replenishment rate can be a fixed value or gradually decrease as the current gas pressure approaches the target gas pressure value to reduce the risk of overshoot.

[0076] In this application embodiment, there are no specific limitations on the inflation method, the control strategy of the inflation process, and the type of specific actuator, as long as it can adjust the air pressure value of the inflatable object from a state lower than the target air pressure value to the target air pressure value.

[0077] Based on the air pressure regulation method provided in one or more of the above embodiments, this application further provides an air pressure regulation device. This air pressure regulation device applies the control logic of the aforementioned air pressure regulation method to perform inflation and / or deflation operations on an inflatable object, thereby regulating the air pressure value of the inflatable object.

[0078] Figure 4 The air pressure regulating device provided in the embodiments of this application. For example... Figure 4 As shown, the air pressure regulating device 40 includes: a connecting pipe 41, an inflation actuator 42, an inflation actuator 43, an air pressure sensor 44, and a controller 45.

[0079] The connecting pipe 41 is a pipe structure that establishes a gas passage with the inflatable object. It can be configured into any suitable type of pipe structure or form according to actual needs, and forms at least one connection interface for establishing a physical connection with the inflatable object (e.g., such as...). Figure 4 (Connection interface 41a shown).

[0080] The inflation actuator 42 is a functional unit for performing the inflation operation. It can replenish gas into the inflatable object through the gas channel established by the connecting pipe 41 and the inflatable object. The inflation actuator 42 can be any suitable type of air pump or other structure capable of applying pressure to generate high-pressure gas.

[0081] The venting actuator 43 is a functional unit used to perform venting operations. It can use the gas passage established by the connecting pipe 41 and the inflatable object to discharge the gas inside the inflatable object. This venting actuator can be an interface connected to the external environment or a device capable of generating suction negative pressure.

[0082] Understandably, the air pressure of an inflatable object increases during inflation and decreases during deflation. When inflation and deflation are performed simultaneously, the trend in air pressure changes depends on the inflation and deflation rates.

[0083] The pressure sensor 44 is a detection device used to collect the air pressure value of an inflatable object. It is installed at a suitable location on the connecting pipe 41, and indirectly collects the air pressure value of the inflatable object based on the connectivity between the connecting pipe 41 and the inflatable object. Alternatively, the pressure sensor 44 can also be directly installed on the inflatable object to directly collect its air pressure value.

[0084] The controller 45 is the control center of the entire air pressure regulating device. It is communicatively connected to the air pressure sensor 44, the deflation actuator 43, and the inflation actuator 42, and can orderly control the operating status of the deflation actuator 43 and the inflation actuator 42 based on the air pressure value provided by the air pressure sensor 44, thereby realizing the control logic of the aforementioned air pressure regulating method.

[0085] For details, please continue reading. Figure 4 The connecting pipe 41 is provided with a connecting interface 41a, and can be switched between at least two different connection states. Thus, by controlling the connection state of the connecting pipe 41, the connecting interface 41a can be used to replenish gas to the inflatable object or to discharge gas from inside the inflatable object.

[0086] By using a single connection interface, the user's operations can be reduced. Only a physical connection needs to be established between the inflatable object and the connection interface 41a, and the air pressure regulating device can automatically complete the air pressure regulation process to adjust the air pressure value of the inflatable object to the target air pressure value.

[0087] In other embodiments, such as Figure 5 As shown, the connecting pipe 41 can also be provided with two connecting ports 41b and 41c, which are used to replenish gas to the inflatable object and to discharge gas from inside the inflatable object, respectively. Although this connection port setting method requires the user to change the connection port for establishing a physical connection with the inflatable object through multiple disassembly and assembly as needed, it can reduce the design difficulty and implementation cost of the connecting pipe 41.

[0088] For example, Figure 6 One specific implementation of the connecting pipe 41 is shown. This connecting pipe 41 uses two 3 / 2 directional valves to switch between connected states, so that a connecting port 41a can be used to replenish gas to the inflatable object or to discharge gas inside the inflatable object, depending on the connection state of the connecting pipe 41.

[0089] like Figure 6 As shown, the connecting pipe 41 includes: a first 3 / 2 reversing valve 411, a second 3 / 2 reversing valve 412, a first connecting pipe 413, a second connecting pipe 414, a third connecting pipe 415, and a fourth connecting pipe 416.

[0090] In this configuration, port A of the first 3 / 2 directional control valve 411 is connected to one end of the first connecting pipe 413, and the other end of the first connecting pipe 413 forms the first working interface Port1. Port P of the first 3 / 2 directional control valve 411 is connected to one end of the second connecting pipe 414, and the other end of the second connecting pipe 414 is connected to the connection interface 41a. Port T of the first 3 / 2 directional control valve 411 is open to the external environment.

[0091] The A port of the second 3 / 2 directional control valve 412 is connected to one end of the third connecting pipe 415, and the other end of the third connecting pipe 415 forms the second working interface Port2. The T port of the second 3 / 2 directional control valve 412 is connected to one end of the fourth connecting pipe 416, and the other end of the fourth connecting pipe 416 is connected to the second connecting pipe 415. The P port of the second 3 / 2 directional control valve 412 is connected to the external environment.

[0092] For details, please continue reading. Figure 6 The pressure sensor 44 can be connected to the second connecting pipe 415 or the fourth connecting pipe 416 to indirectly obtain the pressure value of the inflatable object by measuring the gas pressure in the second connecting pipe 415 or the fourth connecting pipe 416.

[0093] In actual operation, by synchronously controlling the switching of the working states of the first 3 / 2 directional valve 411 and the second 3 / 2 directional valve 412, the connecting pipeline 41 is made into the following two different connection states: 1) First connected state: Both the first 3 / 2 directional control valve 411 and the second 3 / 2 directional control valve 412 are in a working state where ports A and P are connected, and port T is closed. At this time, if Figure 6 As shown, the first working interface Port1 will pass through the first connecting pipe 413, the first 3 / 2 reversing valve 411 and the second connecting pipe 415 in sequence to form a gas passage with the connecting interface 41a. However, the second working interface Port2 and the fourth connecting pipe 416 will be blocked by the second 3 / 2 reversing valve 412, and a gas passage cannot be formed.

[0094] 2) Second connected state: Both the first 3 / 2 directional control valve 411 and the second 3 / 2 directional control valve 412 are in a working state where ports A and T are connected, and port P is closed. At this time, if Figure 6 As shown, the second working interface Port2 will pass through the third connecting pipe 415, the second 3 / 2 reversing valve 412 and the fourth connecting pipe 416 in sequence to form a gas passage with the connecting interface 41a. However, the first working interface Port1 and the second connecting pipe 414 will be blocked by the first 3 / 2 reversing valve 411, and a gas passage cannot be formed.

[0095] Therefore, by setting different actuators in the first working interface Port1 and the second working interface Port2, the connection interface 41a can be switched between inflation and deflation functions.

[0096] For example, when the inflation actuator 42 is connected to the first working interface Port1 and the deflation actuator 43 is connected to the second working interface Port2, when the connecting pipe 41 is in the first connected state, the connecting interface 41a will output gas to replenish the inflatable object. Conversely, when the connecting pipe 41 is in the second connected state, the connecting interface 41a will act as a gas inlet, and the gas inside the inflatable object will be discharged through the connecting interface 41a.

[0097] For example, Figure 7 One implementation of the connecting pipe 41, the inflation actuator 42, and the deflation actuator 43 is shown. For example... Figure 7 As shown, the inflation actuator 42 and the deflation actuator 43 can be implemented by a single-direction power pump.

[0098] The unidirectional power pump has its outlet side (D) sealed to the first working interface (Port1), and its inlet side (S) sealed to the second working interface (Port2). The unidirectional power pump can switch between operating and non-operating states.

[0099] In actual operation, the following functions are achieved by controlling the connection interface 41a through the switching of the working state of the unidirectional power pump and the change of the connection state of the connecting pipeline 41: 1) Inflation function: like Figure 8 As shown, the connecting pipe 41 is in the first connected state. A gas passage is established between the first working interface Port1 and the connecting interface 41a, while the second working interface Port2 is connected to the external environment through the second 3 / 2 reversing valve 412.

[0100] At this time, the one-way power pump is in operation. Its intake side S sequentially draws in air from the external environment and pressurizes it through the second working interface Port2, the second connecting pipe 415, and the second 3 / 2 reversing valve 412. The pressurized air is output from the outlet side D, sequentially passing through the first connecting pipe 413, the first 3 / 2 reversing valve 411, and the second connecting pipe 414, before being output through the connecting interface 41a.

[0101] 2) Exhaust function: like Figure 9 As shown, the connecting pipe 41 is in the second connected state. A gas passage is established between the second working interface Port2 and the connecting interface 41a, while the first working interface Port1 is connected to the external environment through the first 3 / 2 reversing valve 411.

[0102] At this time, the one-way power pump is in a non-working state. The connection interface 41a is connected to the external environment in sequence through the fourth connection pipe 416, the second 3 / 2 reversing valve 412, the second working interface Port2, the suction side S of the one-way power pump, the discharge side D of the one-way power pump, the first working interface Port1, and the first 3 / 2 reversing valve 411.

[0103] Thus, the inflatable object physically connected to the connection interface 41a establishes a gas channel with the external environment, and the gas inside is released and discharged under the drive of the pressure difference.

[0104] 3) Negative pressure suction function: like Figure 10 As shown, the connecting pipe 41 is in the second connected state. A gas passage is established between the second working interface Port2 and the connecting interface 41a, while the first working interface Port1 is connected to the external environment through the first 3 / 2 reversing valve 411.

[0105] At this time, the one-way power pump is in operation. Its intake side S sequentially draws air from the connection port 41a through the second working port 2, the second connecting pipe 415, the second 3 / 2 reversing valve 412, and the fourth connecting pipe 416. The high-pressure air generated after drawing air is output from the outlet side D and sequentially discharged to the external environment through the first connecting pipe 413 and the first 3 / 2 reversing valve 411.

[0106] Specifically, the one-way power pump is a diaphragm pump, or has a check valve or other equivalent one-way conduction structure inside the pump body to ensure that the gas can only move from the inlet side S to the outlet side D, and cannot move in the opposite direction.

[0107] In some embodiments, the unidirectional power pump can be an air pump driven by a motor. As mentioned above, when switching between the various functions of the connection interface 41a, the unidirectional power pump does not need to change the direction of gas flow, but only needs to switch between the ON and OFF states. Therefore, the unidirectional power pump does not require frequent switching of the motor between forward and reverse rotation, effectively extending the motor's lifespan.

[0108] Specifically, the first 3 / 2 directional control valve 411 and the second 3 / 2 directional control valve 412 can be directional control valves driven by electromagnets. They contain an electromagnet and two pistons. The A port of the directional control valve is located in the middle of the valve body, while the P port and T port are located at opposite ends of the valve body. As the internal valve core moves, one port at each end of the valve body is closed, while the other port is opened.

[0109] Therefore, when energized, the electromagnet generates magnetic force to push the valve core inside the 3 / 2 reversing valve to move, thereby changing its working state. When de-energized, the magnetic force of the electromagnet disappears, and the valve core inside the 3 / 2 reversing valve resets under the action of the spring or the medium pressure, thus restoring it to the default working state.

[0110] Preferably, the default operating states of the first 3 / 2 directional valve 411 and the second 3 / 2 directional valve 412 are appropriately configured to adapt to different application scenarios.

[0111] For example, the default operating state of the first 3 / 2 reversing valve 411 and the second 3 / 2 reversing valve 412 is set so that ports A and P are connected, and port T is closed. Therefore, when the connection interface 41a is used for inflation, neither the first 3 / 2 reversing valve 411 nor the second 3 / 2 reversing valve 412 needs to be energized, which can effectively reduce power consumption during inflation and is suitable for applications where air pressure regulating equipment frequently needs inflation.

[0112] For example, the default operating state of the first 3 / 2 reversing valve 411 is set to: ports A and P are connected, and port T is closed, while the default operating state of the second 3 / 2 reversing valve 412 is set to: ports T and P are connected, and port A is closed. Therefore, when the connection interface 41a performs the aforementioned inflation, deflation, or negative pressure suction functions, only one of the first 3 / 2 reversing valves 411 and the second 3 / 2 reversing valve 412 needs to be energized, resulting in essentially the same power consumption in different states. This is suitable for applications where the air pressure regulating device has similar usage frequencies for inflation, deflation, and negative pressure suction functions. It should be noted that... Figure 6 and Figure 7The connecting pipe 41, the inflation actuator 42, and the deflation actuator 43 shown are merely exemplary implementations of the shared connecting interface 41a. Those skilled in the art can make various equivalent adjustments and improvements to the relevant pipe connections and valve types without departing from the design concept of this application to achieve the same technical objective.

[0113] For example, such as Figure 11 As shown, the actuators connected to the first working interface Port1 and the second working interface Port2 are interchanged, so that the outlet side D of the one-way power pump is connected to the second working interface Port2, and the inlet side S of the one-way power pump is connected to the first working interface Port1. Thus, in the first connected state, the connection interface 41a will be in the negative pressure suction function or the exhaust function, while in the second connected state, the connection interface 41a switches to the inflation function.

[0114] For example, such as Figure 12 As shown, the connection relationship between the T port and the P port of the second 3 / 2 reversing valve 412 is interchanged, the T port of the second 3 / 2 reversing valve 412 is connected to the external environment, and the P port of the second 3 / 2 reversing valve 412 is connected to one end of the fourth connecting pipe 416.

[0115] It is understandable that such a setting, when the first 3 / 2 reversing valve 411 and the second 3 / 2 reversing valve 412 are configured to the same default operating state, can also achieve the following technical effect: when the connection interface 41a performs the aforementioned inflation function, deflation function or negative pressure suction function, only one of the first 3 / 2 reversing valve 411 and the second 3 / 2 reversing valve 412 needs to be energized, so that the power consumption is basically the same in different states.

[0116] For example, the two 3 / 2 directional valves can be replaced with other types of directional valves with equivalent functions (such as a 4 / 2 or 5 / 2 directional valve) or valve group structures. By combining and connecting different valve ports, the "gas passage between connection port 41a and the inflation actuator" and the "gas passage between connection port 41a and the deflation actuator" can be established respectively. Alternatively, a combination valve group consisting of an electrically controlled directional valve, a check valve, and a one-way valve can be used to selectively connect the first working port Port1 and the second working port Port2 under different control states, thereby achieving the same functional effect.

[0117] To clearly illustrate the inventive concept and working principle of the air pressure regulating device provided in the embodiments of this application, the following describes in detail the process steps that the controller 45 needs to perform during the air pressure regulation process, in conjunction with the accompanying drawings.

[0118] In some embodiments, such as Figure 13As shown, the process steps executed by the controller 45 include: S701. Collect the air pressure value of the inflatable object through an air pressure sensor.

[0119] After the connection interface 41a establishes a gas connection with the inflatable object, the pressure sensor 44 can detect the pressure of the connecting pipeline, thereby indirectly obtaining the pressure level of the inflatable object before pressure adjustment.

[0120] S702. Determine the current target air pressure value.

[0121] The target air pressure value is a set value that the controller can determine in various ways. For example, the target air pressure value can be set by the user through a human-machine interface device, or a pre-configured default air pressure value can be used as the target air pressure value.

[0122] S703. Determine if the current target air pressure is lower than the air pressure of the inflatable object. If yes, execute the air pressure reduction procedure. If no, execute the air pressure increase procedure.

[0123] When the judgment result is that the target air pressure value is less than the current air pressure value, it indicates that the current air pressure of the inflatable object is too high and needs to be adjusted down to the target air pressure value. At this time, the controller 45 enters the "air pressure reduction process". Conversely, when the judgment result is that the target air pressure value is greater than or equal to the current air pressure value, it indicates that the current air pressure of the inflatable object is too low or has not yet reached the required level, and needs to be increased to the target air pressure value. At this time, the controller 45 enters the "air pressure increase process".

[0124] The sub-processes involved in the air pressure reduction and air pressure increase processes are described in detail below to more clearly demonstrate the complete control mechanism of the controller 45 in realizing automatic air pressure regulation.

[0125] In some embodiments, please continue reading Figure 13 The sub-processes of this pressure reduction procedure include: S7041, Control the venting actuator to perform venting operation.

[0126] The venting operation refers to the process of releasing gas from an inflatable object to reduce its pressure. Specifically, in accordance with the specific implementation of the venting actuator 43, this venting operation can release the gas from the inflatable object through either extraction or venting.

[0127] For example, when the venting actuator 43 is a controllable valve such as a solenoid valve, the controller 45 can control the solenoid valve to open, so that the inflatable object can be connected to the external environment through a connecting pipe, and the gas can be discharged by venting.

[0128] For example, if the venting actuator 43 is an electric pump or other similar device capable of creating negative pressure, the controller 45 can activate the venting actuator 43 to apply additional negative pressure to the inflatable object and quickly vent the gas by extraction.

[0129] Preferably, the controller 45 also adaptively adjusts the degassing operation based on the current air pressure value of the inflatable object. For example, when the controller 45 determines that the air pressure value of the inflatable object is lower than or equal to the preset threshold, it can control the degassing actuator 43 to apply additional negative pressure and accelerate gas discharge by extraction. When the controller 45 determines that the air pressure value of the inflatable object is higher than the preset threshold, it controls the degassing actuator 43 to stop generating negative pressure and directly connect to the external environment to discharge gas by venting.

[0130] Specifically, the preset threshold can be set to 2 psi, 3 psi, 4 psi, or their corresponding values ​​in pressure units such as kPa or bar. In this application, "psi" represents a pressure value relative to atmospheric pressure (gauge pressure).

[0131] S7042. After the air pressure value of the inflatable object decreases to below the target air pressure value as the deflation operation is performed, the inflation actuator is controlled to perform the inflation operation.

[0132] Specifically, during step S7042, the controller 45 first controls the deflation actuator to stop performing the deflation operation, and then controls the inflation actuator to perform the inflation operation. In other words, the deflation and inflation operations are prevented from being performed simultaneously as much as possible.

[0133] Preferably, the controller 45 can also be set with a preset waiting time. After the venting actuator stops performing the venting operation and the waiting time has elapsed, the inflation actuator is then controlled to perform the inflation operation, so that the inflatable object is in a basically static state without additional gas flow interference, thus avoiding short-term fluctuations in pressure.

[0134] Specifically, during the execution of step S7041, the controller 45 maintains the detection of the air pressure value of the inflatable object so that the air pressure value of the inflatable object falls within a release air pressure range that is relatively close to the target air pressure value.

[0135] In some embodiments, please continue reading Figure 13 The sub-processes of this pressure reduction procedure also include: S7043. During the inflation operation, the air pressure value of the inflatable object is collected by the air pressure sensor.

[0136] During the inflation process, the gas in the connecting pipe is under steady-state or near-steady-state pressure conditions, which allows the pressure sensor to collect pressure values ​​that can accurately and reliably reflect the current actual pressure level of the inflatable object, providing a relatively accurate measurement basis for subsequent judgment on whether the target pressure value has been reached.

[0137] S7044. Determine whether the air pressure of the inflatable object has reached the target air pressure. If yes, proceed to step S7045. If no, continue to step S7042.

[0138] The controller 45 compares the barometric pressure sensor measurement value obtained in step S7043 with the target barometric pressure value in real time, thereby promptly determining whether the current barometric pressure has reached the target barometric pressure value.

[0139] S7045, Control the inflation actuator to stop performing the inflation operation.

[0140] The pressure reduction process is considered complete when the air pressure of the inflatable object is adjusted to the target air pressure level. Accordingly, the inflation actuator 42 stops the inflation operation and prompts the user to disconnect the physical connection between the inflatable object and the connection interface.

[0141] In the actual process of lowering air pressure, such as Figure 14 As shown, at the initial moment t11 ​​when the inflatable object establishes a physical connection with the connection interface, the air pressure value of the inflatable object is detected to be higher than the set target air pressure value Set. At this time, the controller 45 executes step S7041, and the air pressure value of the inflatable object rapidly decreases as the deflation operation proceeds.

[0142] At time t12, the actual air pressure of the inflatable object drops to the target air pressure value Set, and further decreases as the deflation operation proceeds, entering the deflation pressure range ΔP.

[0143] At time t13, after time t12, the controller 45 detects that the air pressure value of the inflatable object has fallen into the release pressure range ΔP. At this time, the controller 45 instructs the air pressure regulating device to stop performing the release operation and wait for a period of time ΔT.

[0144] At time t14 after the waiting time ΔT, the controller 45 executes step S7042, and the air pressure value of the inflatable object increases as the inflation operation proceeds.

[0145] At time t15, the controller 45 detects that the air pressure value of the inflatable object has reached the target air pressure value Set. At this time, the controller 45 executes step S7045, causing the air pressure regulating device to stop performing the inflation operation, thus completing the air pressure reduction process.

[0146] In other embodiments, please continue to refer to Figure 13 The process of increasing air pressure includes: S7051, Control the inflation actuator to perform inflation operation.

[0147] Although step S7051 and step S7042 in the aforementioned air pressure reduction process involve the same control method in terms of function—both involve performing an inflation operation on an inflatable object—their specific implementation methods can differ to adapt to different practical application needs.

[0148] For example, during the pressure increase process, there is a large difference between the pressure of the inflatable object and the target pressure. Therefore, in the initial stage of the inflation operation, the controller 45 controls the inflation actuator 42 to operate with a higher inflation power or a larger inflation flow rate in order to quickly increase the pressure of the inflatable object in a shorter time.

[0149] As the pressure of the inflatable object gradually approaches the target pressure, the controller 45 correspondingly reduces the inflation power (e.g., by reducing the flow rate and the duty cycle) to achieve finer inflation control as it approaches the target pressure range, thereby reducing the risk of over-inflation.

[0150] S7052. Determine whether the air pressure of the inflatable object has reached the target air pressure. If yes, proceed to step S7053; otherwise, continue to step S7051.

[0151] Functionally, step S7052 and step S7043 in the aforementioned air pressure reduction process involve the same judgment mechanism: comparing the air pressure value of the inflatable object with the target air pressure value. However, their specific implementation methods may differ to adapt to different practical application needs.

[0152] For example, in the initial stage of performing the inflation operation, the controller 45 sets the air pressure detection sampling period to a relatively long one to reduce unnecessary frequent detection. As the air pressure value of the inflatable object gradually approaches the target air pressure value, the controller 45 correspondingly shortens the air pressure detection sampling period, thereby achieving more precise inflation control when approaching the target air pressure area and reducing the risk of over-inflation.

[0153] S7053, Control the inflation actuator to stop performing the inflation operation.

[0154] The pressure increase process is considered complete when the air pressure of the inflatable object is raised to a level close to the target air pressure. Accordingly, the inflation actuator 42 stops the inflation operation and prompts the user to disconnect the physical connection between the inflatable object and the connection interface.

[0155] In the actual process of increasing air pressure, such as Figure 15 As shown, at the initial moment t21 when the inflatable object establishes a physical connection with the connection interface, it is detected that the air pressure value of the inflatable object is lower than the set target air pressure value Set. At this time, the controller 45 executes step S7051, and the air pressure value of the inflatable object rises rapidly as the inflation operation proceeds.

[0156] At time t22, the controller 45 detects that the air pressure value of the inflatable object has risen to a level relatively close to the target air pressure value Set. At this time, the controller 45 reduces the power of the inflation operation by controlling the working state of the inflation actuator, thereby slowing down the rate at which the air pressure value of the inflatable object rises.

[0157] At time t23, the controller 45 detects that the air pressure value of the inflatable object has reached the target air pressure value Set. At this time, the controller 45 executes step S7053, causing the air pressure regulating device to stop performing the inflation operation, thus completing the air pressure adjustment process.

[0158] In some embodiments, such as Figure 16 As shown, the air pressure regulating device also includes a display device 46.

[0159] The display device 46 is a display component capable of presenting visual information to a user. Examples include digital tube displays, liquid crystal displays, and organic light-emitting displays, without specific limitations.

[0160] The display device 46 is electrically connected to the controller 45. Under the control of the controller 45, it is used to output one or more operating status information of air pressure regulating devices to the user in a visual manner. For example, the operating status information may include: displaying air pressure value. In other words, the controller 45 can control the display device 46 to output the corresponding display air pressure value based on the air pressure value collected by the air pressure sensor, so that the user can intuitively know the air pressure status of the inflatable object.

[0161] Specifically, in order to avoid user misunderstanding caused by the control logic of the aforementioned air pressure reduction process, during the over-release period, the controller 45 will perform differential processing on the air pressure value collected by the air pressure sensor so that the displayed air pressure value output by the display device is not lower than the target air pressure value.

[0162] The "over-release period" refers to the time when the air pressure of an inflatable object falls below the target air pressure (e.g., ...). Figure 14 From time t12 (as shown), until the time when the pressure of the inflatable object reaches the target pressure (e.g., Figure 14 The time period ending at time t15 is shown. Correspondingly, "non-over-release period" refers to the time period other than the over-release period.

[0163] "Differentiated processing" refers to the controller first performing certain calculations, transformations, or conditional judgments on the raw measurement values ​​collected by the barometric pressure sensor according to pre-configured processing rules, and then generating the corresponding display barometric pressure value.

[0164] For example, the differentiation process includes one or more of the following methods: 1) Lower limit limiting processing: When the actual air pressure value collected by the air pressure sensor 44 is lower than the target air pressure value, the controller 45 can output the target air pressure value itself to the display device 46, so that the display device 46 always displays an air pressure value that is not lower than the target air pressure value.

[0165] 2) Delayed update processing: When the air pressure of the inflatable object is detected to drop rapidly below the target air pressure value and enter the over-discharge range in a short period of time, the controller 45 adopts a delayed update strategy for the displayed air pressure value, so that the change of the displayed air pressure value is significantly slower than the detected air pressure fluctuation.

[0166] 3) Status auxiliary display processing: The controller 45 controls the display device 46 to display status icons or text descriptions such as "adjusting" or "calibrating", to remind the user that the device is currently in the adjustment stage, further reducing the possibility that the user will regard short-term over-discharge as a device failure.

[0167] By differentiating the over-release period, it can be ensured that the control logic of the aforementioned air pressure reduction process is not directly exposed by the display device 46, thus avoiding the user's mistaken belief that the air pressure regulating equipment has malfunctioned or is abnormal.

[0168] Alternatively, in addition to performing differential processing during the over-release period, the differential processing can also be performed in the time period adjacent to the over-release period to better ensure that the control logic of the aforementioned pressure reduction process is not directly exposed by the display device 46.

[0169] For example, the time period adjacent to the over-release period and close to the target air pressure value is defined as the buffer period. During the buffer period and the over-release period, the control displays the air pressure value, which is lowered to the target air pressure value at a set rate of change, no longer maintains consistency with the actual air pressure value collected by the air pressure sensor 44.

[0170] For example, with a target air pressure of 8.0 psi, when the actual air pressure detected by the air pressure sensor drops from 8.3 psi to 7.5 psi and then refills back to 8.0 psi, the air pressure displayed on the display device 46 smoothly changes from 8.3 psi to 8.0 psi.

[0171] In some embodiments, please continue reading Figure 16 The pressure regulating device also includes a non-volatile memory 47.

[0172] The non-volatile memory 47 is a storage device that retains stored data even when power is off. Examples include electrically erasable programmable read-only memory, flash memory, ferroelectric memory, or other storage modules with non-volatile characteristics.

[0173] The controller 45 is electrically connected to the non-volatile memory 47. It is configured to store the currently set target air pressure value as the default air pressure value in the non-volatile memory 47, and when the air pressure regulating device is powered off and restarted, the controller 45 retrieves the default air pressure value from the non-volatile memory 47 as the current target air pressure value for subsequent air pressure regulation processes.

[0174] This embodiment of the application enables the air pressure regulating device 40 to have a memory function for the target air pressure value by storing the current target air pressure value. When the air pressure regulating device 40 is powered on again, the controller 45 can automatically read the previously saved default air pressure value from the non-volatile memory 47 and use it directly as the target air pressure value without the user having to re-enter or set the target air pressure value, thereby improving the user's ease of operation and user experience.

[0175] Based on the needs of practical applications, the default air pressure value can adopt corresponding update strategies and storage formats. No specific restrictions are made here, as long as it can automatically restore to the air pressure target set by the user after the device is powered off and restarted.

[0176] For example, when the controller 45 detects that the user has updated the target air pressure value through the user interaction component (e.g., switching operating modes or manually modifying the target air pressure value), it can automatically update the default air pressure value stored in the non-volatile memory 47 so that the target air pressure value most recently set by the user is called up on the next startup.

[0177] The controller described in one or more embodiments of this application may be implemented in digital electronic circuits, integrated circuits, specially designed ASICs (Application-Specific Integrated Circuits), computer hardware, firmware, software, and / or combinations thereof to execute the pressure increase and / or pressure decrease processes described in the foregoing one or more embodiments. It may include embodiments of one or more computer programs that can be executed and / or interpreted on a programmable system comprising at least one programmable processor, which may be dedicated or general-purpose, coupled to receive data and instructions from a storage system, at least one input device, and at least one output device, and to transmit data and instructions to the storage system, at least one input device, and at least one output device.

[0178] These computer programs (also referred to as programs, software, software applications, or code) include machine instructions for a programmable processor and can be implemented using high-level programming and / or goal-oriented programming languages ​​and / or assembly / machine language. In this embodiment, the terms "machine-readable medium" and "computer-readable medium" refer to any computer program product, device, and / or apparatus (e.g., disk, optical disk, memory, programmable logic device) used to provide machine instructions and / or data to a programmable processor, including machine-readable media that receive machine instructions as machine-readable signals. The term "machine-readable signal" can refer to any signal used to provide machine instructions and / or data to a programmable processor.

[0179] In one or more of the foregoing embodiments, the control logic, data storage method, and human-computer interaction behavior of the air pressure regulating device are described in an abstract and general way from the perspective of functional modules and their collaborative relationships.

[0180] To facilitate a clear understanding by those skilled in the art of implementing the pressure regulating device described in the embodiments of this application, the following description, in conjunction with the accompanying drawings, uses an air pump as an example. This air pump demonstrates how the aforementioned connecting pipes, pressure sensors, and display devices are implemented in a practical structure.

[0181] Figure 17 This is a schematic diagram of the air pump according to an embodiment of this application from a first-view perspective. Figure 18 This is a schematic diagram of the air pump according to an embodiment of this application from a second perspective.

[0182] like Figure 17 and Figure 18 As shown, the air pump includes: housing assembly 51, nozzle assembly 52, and control assembly 53.

[0183] The housing assembly 51 forms the outer outline of the air pump. Its interior provides space for installing and assembling various functional modules. The housing assembly 51 has a mesh-like perforated area 51A to facilitate gas exchange between the interior of the housing assembly 51 and the external environment.

[0184] The nozzle assembly 52 is a connection port that establishes a physical connection with the inflatable object. It is located at the front end of the housing assembly 51. The nozzle assembly 52 employs a single connection port configuration. This connection port can be used to both supply gas to the inflatable object and to expel gas from within the inflatable object.

[0185] Control component 53 is one or more components used to control the operating status of the air pump and to enable interaction between the air pump and the user. For example, the aforementioned controller can be integrated into control component 53 to control the operating status of the air pump.

[0186] The components in the control assembly 53 used for user interaction are exposed outside the housing assembly 51 through notches in the housing assembly 51, forming part of the outer surface of the air pump to facilitate input and output interaction with the user. Examples include multiple operation buttons 531 and a display device 532.

[0187] In actual use, users can set and control the operating status of the air pump through the operation button 531, and can understand the current operating status of the air pump and related information such as the air pressure value of the inflatable object in real time through the visual information displayed by the display device 532.

[0188] In some embodiments, the nozzle assembly 52 and the control assembly 53 are located on two opposing surfaces of the housing assembly 51. This arrangement ensures that when the nozzle assembly 52 faces the inflatable object being inflated, the interactive operation surface formed by the operation button 531 and the display device 532 is on the user-facing side.

[0189] In actual use, the object being inflated, which is physically connected to the air nozzle assembly 52, is generally located in front of the device or on the side away from the user, and will not obstruct or interfere with the interactive operation surface. Therefore, the user can conveniently hold the air pump with one hand to perform interactive operations on the operation button 531 during inflation, without having to walk around the object being inflated or change the holding posture.

[0190] Furthermore, the display surface of the display device 532 is oriented towards the user's line of sight, allowing the user to naturally observe information such as the current air pressure and working status while holding the device normally and in an inflation posture, without needing to twist their wrist or move the device. This design effectively improves the comfort and visibility of the inflation operation, enhancing the human-computer interaction experience.

[0191] Figure 19 This is an exploded structural diagram of the air pump according to an embodiment of this application. Figure 19 As shown, the functional components of the air pump located inside the housing assembly 51 also include: a drive assembly 54, an air pump connection pipe 55, and a pressure sensor 561.

[0192] The drive assembly 54 is a device for pumping gas. It has a gas output port 54a, which draws in air from the external environment, pressurizes it, and outputs the pressurized high-pressure air from the gas output port 54a. Preferably, the drive assembly 54 also has a suction function. It has a gas intake port 54b, independent of the gas output port 54a, which can generate negative pressure.

[0193] For example, Figure 19The diagram shows a case where the drive assembly 54 is an integral structure. Alternatively, the drive assembly 54 can also be a split structure, consisting of two independent drive components: a drive unit for outputting high-pressure air and a second drive unit for generating negative pressure.

[0194] The air pump connection pipe 55 is a pipe structure that connects the air nozzle assembly 52 and the drive assembly 54, forming a gas passage between the two. For example, as shown... Figure 18 As shown, the air pump connection pipe 55 can have at least three connection ports 55a, 55b and 55c. One connection port 55c is used for a sealed connection with the air nozzle assembly 52, and the other two connection ports 55b and 55c are used for sealed connections with the gas output port 54a and the gas intake port 54b, respectively.

[0195] The air pump connection line 55 includes one or more solenoid valves 551. These solenoid valves 551 are driven by electrical signals applied by the control component 53 and switch between different operating states, so that the connection line 55 has different connection states, thereby selectively connecting the air nozzle assembly 52 to one of the gas output interface 54a or the gas intake interface 54b.

[0196] For ease of explanation, the state in which the nozzle assembly 52 is connected to the gas output interface 54a is referred to as the first connected state, and the state in which the nozzle assembly 52 is connected to the gas intake interface 54b is referred to as the second connected state.

[0197] Pressure sensor 561 is a device used to acquire the air pressure value of the connecting pipe 55. It is installed inside the detection branch 55d formed by the connecting pipe 55 and converts the air pressure value of the detection branch 55d into a corresponding electrical signal.

[0198] Preferably, the pressure sensor 561 is directly soldered onto the circuit board 533 of the control component 53, effectively reducing the space and volume occupied and achieving a high degree of integration. The circuit board 533 covers the top opening of the detection branch 55d, thereby placing the pressure sensor 561 inside the detection branch 55d.

[0199] Specifically, such as Figure 21 As shown, a second seal 562 is provided between the circuit board 533 and the top opening of the detection branch 55d to ensure good airtightness between the two.

[0200] Figure 20 This is an exploded structural diagram of the air pump connection pipe 55 provided in an embodiment of this application. For example... Figure 20As shown, the air pump connection pipe 55 includes: a first solenoid valve 551a, a second solenoid valve 551b, a first bracket 552, a connecting pipe 553, a first pipe 554, a second pipe 555, a third pipe 556, and a fourth pipe 557.

[0201] Among them, the first solenoid valve 551a and the second solenoid valve 551b are both 3 / 2 directional valves.

[0202] In this application, a 3 / 2 directional valve refers to a solenoid valve having three independent ports and two switchable operating states. For example... Figure 22 As shown, the three independent ports of this 3 / 2 directional control valve are labeled P, A, and T, respectively. The two operating states correspond to the following two connection relationships between the three independent ports: 1) In working state 1, P is connected to A, while T is closed.

[0203] 2) In working state 2, T is connected to A, while P is closed.

[0204] The connecting pipe 553 has a third interface 553a and a fifth interface 553b at its two ends that are opposite to each other in the pipe's extension direction. The connecting pipe 553 also has multiple lateral interfaces on its wall to form different connection branches and detection branches. These lateral interfaces include: a first interface 553c, a second interface 553d, a fourth interface 553e, and a detection interface 553f.

[0205] Specifically, such as Figure 21 As shown, a sealed partition wall 553x is provided between the first interface 553c and the fourth interface 553e in the connecting pipe 553 to block the flow of gas.

[0206] Please continue reading. Figure 20 The first bracket 552 provides mounting positions for mounting and fixing the circuit board 533, the first solenoid valve 551a, and the second solenoid valve 551b, respectively.

[0207] For details, please continue reading. Figure 15 The circuit board 533 is located at the top of the first bracket 552, and the first solenoid valve 551a and the second solenoid valve 551b are fixed on both sides of the first bracket 552 along the extension direction of the connecting pipe 553.

[0208] Please continue reading. Figure 20 The first support 552 also forms a hollow detection channel 552f. This detection channel 552f is connected to the detection interface 553f to form a detection branch.

[0209] In some embodiments, please continue reading Figure 20 and Figure 24One end of the first pipe 554 forms a connection port 55a, and the other end of the first pipe 554 is connected to the fifth interface 553b of the connecting pipe 553. One end of the fourth pipe 554 is connected to the third interface 553a of the connecting pipe, and the other end of the fourth pipe 557 is connected to the air nozzle assembly 52.

[0210] One end of the second pipe 555 forms a connection port 55b, and the other end of the second pipe 555 is connected to port A of the first solenoid valve 551a. Preferably, when port A faces the connecting pipe 553, the second pipe 555 can be composed of a flexible hose 555a and an adapter 555b to facilitate connection with port A.

[0211] One end of the third pipe 556 is connected to the P port of the first solenoid valve 551a, and the other end of the third pipe 556 is connected to the second port 553d of the connecting pipe. The T port of the first solenoid valve 551a is connected to the external environment.

[0212] The T port of the second solenoid valve 551b is connected to the first port 553c in the side interface, and the A port of the second solenoid valve 551b is connected to the fourth port 553e in the side interface. The P port of the second solenoid valve 551b is connected to the external environment.

[0213] For details, please continue reading. Figure 24 The connection points between the aforementioned interfaces and between the interfaces and the pipes can be equipped with corresponding sealing elements 558 as needed to ensure airtightness at the connection points. For example, a first sealing element can be installed between the detection channel 55f and the detection interface 553f.

[0214] The following describes in detail the connection state switching process of the air pump connection pipe 55, taking the connection port 55a connected to the gas intake port 54b and the connection port 55b connected to the gas output port 54a as an example.

[0215] 1) First connected state: like Figure 20 and Figure 24 As shown, both the first solenoid valve 551a and the second solenoid valve 551b are in working state 1.

[0216] First, the high-pressure gas output from the gas output port 54a enters through port A of the first solenoid valve 551a. At this time, port T of the first solenoid valve 551a is closed. The high-pressure gas can only be output from port P of the first solenoid valve 551a and enters the connecting pipe 553 through the third pipe 556.

[0217] Then, because the T-port of the second solenoid valve 551b is closed, the high-pressure gas entering the connecting pipe 553 can only be output from the third port 553a, and cannot be output from the first port 553c.

[0218] Finally, the high-pressure gas output from the third interface 553a enters the nozzle assembly 20 through the fourth pipe 554 and is output from the nozzle assembly 20.

[0219] 2) Second connected state: like Figure 21 and Figure 24 As shown, both the first solenoid valve 551a and the second solenoid valve 551b are in working state 2. First, the gas inside the inflatable object will pass through the air nozzle assembly 52 and the fourth pipe 554 in sequence and enter the connecting pipe 553.

[0220] Then, since the P port of the first solenoid valve 551a is closed, the gas entering the connecting pipe 553 can only leave the connecting pipe 553 through the first port 553c and enter the T port of the second solenoid valve 551b. The gas entering from the T port of the second solenoid valve 551b can only leave from the A port of the second solenoid valve 551b because the P port of the second solenoid valve 551b is closed.

[0221] Finally, the gas exiting from port A of the second solenoid valve 551b passes through the fourth port 553e and the fifth port 553e in sequence, enters the first pipe 554, and is drawn in by the gas intake port 54b.

[0222] The above description is merely an embodiment of this application and does not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A method for regulating the air pressure of an inflatable object, characterized in that, include: Determine a target air pressure value, which is lower than the current air pressure value of the inflatable object; The gas inside the inflatable object is released to reduce the air pressure of the inflatable object. When the air pressure of the inflatable object is lower than the target air pressure, gas is added to the inflatable object.

2. The air pressure regulation method according to claim 1, characterized in that, Also includes: During the process of replenishing gas to the inflatable object, the gas pressure value of the inflatable object is detected; When the air pressure of the inflatable object reaches the target air pressure, the supply of gas to the inflatable object is stopped.

3. The air pressure regulation method according to claim 1, characterized in that, The step of replenishing the inflatable object with gas when the air pressure value of the inflatable object is lower than the target air pressure value specifically includes: During the process of expelling gas from the inflatable object, the air pressure value of the inflatable object is detected; When the air pressure value of the inflatable object falls into the release air pressure range, stop releasing the gas from the inflatable object; After stopping the discharge of gas from the inflatable object, gas is replenished to the inflatable object; The range of venting pressure is determined based on the target pressure value.

4. The air pressure regulation method according to claim 3, characterized in that, The step of replenishing the inflatable object with gas after stopping the discharge of gas from the inflatable object specifically includes: After stopping the discharge of gas from the inflatable object, allow the inflatable object to enter a static state; After the inflatable object in the static state meets the preset inflation conditions, gas is added to the inflatable object.

5. The air pressure regulation method according to claim 4, characterized in that, The preset inflation conditions include: The inflatable object enters the static state for a preset waiting period, and / or The pressure change of the inflatable object is less than the preset standard.

6. The air pressure regulation method according to claim 1, characterized in that, The process of venting the gas from the inflatable object to reduce its pressure includes: During the process of expelling gas from the inflatable object, the air pressure value of the inflatable object is detected; When the air pressure value of the inflatable object is lower than or equal to a preset threshold, the gas inside the inflatable object is discharged by extraction. When the current air pressure of the inflatable object is greater than the preset threshold, the gas inside the inflatable object is released by venting.

7. A pressure regulating device, characterized in that, include: The inflation actuator is configured to perform an inflation operation by supplying gas to the inflatable object through a connecting pipeline. The deflation actuator is configured to perform a deflation operation, discharging gas from the inflatable object through a connecting pipeline; A pressure sensor is configured to acquire the pressure value of the inflatable object; The controller is communicatively connected to the pressure sensor, the deflation actuator, and the inflation actuator. The controller is configured as follows: The air pressure value of the inflatable object is collected by the air pressure sensor; Determine the current target air pressure value; When the target air pressure value is less than the air pressure value of the inflatable object, the deflation actuator is controlled to perform a deflation operation; After the air pressure of the inflatable object decreases to below the target air pressure as the deflation operation is performed, the inflation actuator is controlled to perform an inflation operation.

8. The air pressure regulating device according to claim 7, characterized in that, The controller is also configured to: During the inflation operation performed by the inflation actuator, the air pressure value of the inflatable object is collected by the air pressure sensor; When the air pressure of the inflatable object reaches the target air pressure, the inflation actuator is controlled to stop performing the inflation operation.

9. The air pressure regulating device according to claim 8, characterized in that, Also includes: The display device is configured to output and display air pressure values; The controller is electrically connected to the display device and is configured to: during the over-discharge period, process the air pressure value collected by the air pressure sensor to ensure that the displayed air pressure value output by the display device is not lower than the target air pressure value. The over-release period is defined as the time period from the moment when the air pressure of the inflatable object is lower than the target air pressure to the moment when the air pressure of the inflatable object reaches the target air pressure.

10. The air pressure regulating device according to claim 7, characterized in that, Also includes: A non-volatile memory, which is electrically connected to the controller; The controller is further configured to: store the target air pressure value as a default air pressure value in the non-volatile memory, and after the air pressure regulating device is powered off and restarted, retrieve the default air pressure value from the non-volatile memory as the current target air pressure value.

11. The air pressure regulating device according to claim 7, characterized in that, The controller is also configured to: When the target air pressure value is greater than the air pressure value of the inflatable object, the inflation actuator is controlled to perform an inflation operation; When the air pressure of the inflatable object reaches the target air pressure, the inflation actuator is controlled to stop performing the inflation operation.

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