Air pressure adjusting device and inflatable product

Abstract

The utility model discloses an air pressure adjusting device and an inflatable product. The air pressure adjusting device comprises a first shell and a propelling part, and a first sealing cavity and a first air nozzle communicating with the first sealing cavity are formed in the first shell; the propelling part is movably connected into the first shell, the propelling part and at least one part of the first sealing cavity are sealed to form a second sealing cavity, the second sealing cavity is communicated with the first air nozzle, and the propelling part can move in the axial direction of the propelling part so as to change the size of the second sealing cavity. The inflatable product comprises the air pressure adjusting device and further comprises an air bag structure, and the air bag structure is communicated with the second sealing cavity through the first air nozzle. When the air pressure adjusting device is used, noise is low, the use experience of the air pressure adjusting device can be improved, and the air pressure value can be accurately adjusted. The utility model is applied to the technical field of air pressure regulation.

Description

Technical Field

[0001] The present application relates to the technical field of air pressure regulation, and particularly relates to an air pressure regulation device and an inflatable product. Background Art

[0002] In the related art, an air pump provided with a solenoid valve is usually used to regulate the air pressure of an airbag. The opening and closing of the air pump can be controlled by the solenoid valve, and the gas flow rate and air pressure value can be regulated by controlling the opening degree and opening time of the solenoid valve.

[0003] However, on the one hand, not only does the solenoid valve generate relatively large noise during use; moreover, the inner cavity of the air pump communicates with the outside to provide a gas source, so that a relatively large airflow sound will be generated during the process of inflating and deflating through the air pump, resulting in a poor user experience. On the other hand, by controlling the opening degree and opening time of the solenoid valve to regulate the air pressure value of the airbag, the accuracy of this regulation method is not high, resulting in a poor regulation effect. Utility Model Content

[0004] The present application aims to at least solve one of the above technical problems in the prior art to a certain extent. For this reason, a first aspect embodiment of the present application provides an air pressure regulation device, which has low noise during use and can improve the use experience of the air pressure regulation device.

[0005] A second aspect embodiment of the present application proposes an inflatable product having the above air pressure regulation device.

[0006] The air pressure regulation device according to the first aspect embodiment of the present application includes: a first housing, a first sealed cavity is formed in the first housing and a first air nozzle communicating with the first sealed cavity; a pusher, movably connected to the inside of the first housing, at least a part of the pusher and the first sealed cavity are hermetically formed into a second sealed cavity, and the second sealed cavity communicates with the first air nozzle, and the pusher can move along its axial direction to change the volume of the second sealed cavity.

[0007] Based on the above technical solution, the embodiment of the present application has at least the following beneficial effects: When the air pressure regulation device is connected to the airbag and the pusher is moved to reduce the volume of the second sealed cavity, the gas in the second sealed cavity will enter the airbag, so that the air pressure value of the airbag increases; when the pusher is moved to increase the volume of the second sealed cavity, the gas in the airbag will enter the second sealed cavity, so that the air pressure value of the airbag decreases. That is, the airbag is inflated and deflated through the air pressure regulation device, so that the air pressure of the airbag can be regulated. During the process of regulating the air pressure of the airbag, the first sealed cavity does not communicate with the outside, so that no airflow sound will be generated when the air pressure regulation device inflates and deflates, which can effectively reduce the noise and improve the use experience of the air pressure regulation device.

[0008] According to the air pressure regulating device of the first aspect embodiment of the present application, the air pressure regulating device further includes an induction component, and the induction component is at least used to measure the air pressure value changed by the propulsion member within a unit displacement.

[0009] According to the air pressure regulating device of the first aspect embodiment of the present application, the induction component includes a Hall element and a magnetic member. The Hall element is used to interact with the magnetic member. The Hall element is installed on one of the first housing and the propulsion member, and the magnetic member is installed on the other of the first housing and the propulsion member. At least one of the Hall element and the magnetic member is provided with at least two along the axial direction of the propulsion member.

[0010] According to the air pressure regulating device of the first aspect embodiment of the present application, the induction component further includes a Hall induction plate. The Hall induction plate is installed on the first housing. The Hall elements are provided in two, and the two Hall elements are installed on the Hall induction plate at intervals along the axial direction of the propulsion member, and the Hall elements are electrically connected to the Hall induction plate. The magnetic member is installed on the propulsion member.

[0011] According to the air pressure regulating device of the first aspect embodiment of the present application, the air pressure regulating device further includes a transmission member. The transmission member is connected to the propulsion member, and the transmission member is used to axially move the propulsion member by its own rotation.

[0012] According to the air pressure regulating device of the first aspect embodiment of the present application, the transmission member is provided with a thread along its length direction, and the propulsion member is provided with a threaded hole. The transmission member passes through the threaded hole and is in fit connection with the threaded hole.

[0013] According to the air pressure regulating device of the first aspect embodiment of the present application, the air pressure regulating device further includes a driving component. The driving component is connected to the transmission member, and the driving component is used to drive the transmission member to rotate.

[0014] According to the air pressure regulating device of the first aspect embodiment of the present application, the driving component is a stepping motor.

[0015] According to the air pressure regulating device of the first aspect embodiment of the present application, a sealing member is sleeved on the outer periphery of one end of the propulsion member, and the propulsion member is hermetically connected to the first housing through the sealing member.

[0016] According to the inflatable product of the second aspect embodiment of the present application, including the above-mentioned air pressure regulating device, it further includes an airbag structure, and the airbag structure is communicated with the second sealing cavity through the first air nozzle.

[0017] Additional aspects and advantages of the present application will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present application. Description of the Drawings

[0018] The present application will be further described below in conjunction with the drawings and embodiments;

[0019] Figure 1 It is a schematic structural diagram of the air pressure regulating device in the embodiment of the present application;

[0020] Figure 2 It is an exploded view of the air pressure regulating device in the embodiment of the present application;

[0021] Figure 3 It is a schematic structural diagram of the connection between the air pressure regulating device and the airbag in the embodiment of the present application;

[0022] Figure 4 It is a schematic structural diagram of the Hall induction plate installed with Hall components in the embodiment of the present application;

[0023] Figure 5 It is a schematic structural diagram of the inflatable pillow in the embodiment of the present application;

[0024] Figure 6 It is an exploded view of the inflatable pillow in the embodiment of the present application.

[0025] Reference Signs:

[0026] Air pressure regulating device 100, first housing 110, second sealing cavity 111, first air nozzle 112, pusher 121, first part 1211, second part 1212, blind hole 1213, seal 122, threaded sleeve 123, Hall induction plate 131, Hall component 132, magnetic part 133, transmission part 141, driving component 142, fixing piece 143, control board 144, power interface 1441, second housing 150; airbag 200; air pipe 300; pillow body 400, second opening 410. Detailed Embodiments

[0027] This part will describe in detail the specific embodiments of the present application. The preferred embodiments of the present application are shown in the drawings. The function of the drawings is to supplement the description of the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present application, but it cannot be construed as a limitation on the protection scope of the present application.

[0028] In the description of the present application, it should be understood that for the orientation description, such as the orientation or positional relationship indicated by up, down, front, back, left, right, etc., it is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present application.

[0029] In the description of the present application, the meaning of several is one or more, the meaning of multiple is more than two, greater than, less than, exceeding, etc. are understood as not including the present number, and above, below, within, etc. are understood as including the present number. If the first and second are described only for the purpose of distinguishing technical features, they should not be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or the sequence relationship of the indicated technical features.

[0030] In the description of the present application, unless otherwise clearly defined, words such as setting and connecting should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meaning of the above words in the present application in combination with the specific content of the technical solution.

[0031] Next, the technical solution of the present application will be further described in conjunction with the embodiments and the drawings.

[0032] In the embodiments of the present application, the positive direction of the X-axis in the drawings is defined as the front, and the negative direction of the X-axis is defined as the back.

[0033] See Figure 1 and Figure 2 , an air pressure regulating device 100 is provided in the first aspect embodiment of the present application. When in use, it has low noise, can improve the use experience of the air pressure regulating device 100, and can accurately regulate the air pressure value.

[0034] The air pressure regulating device 100 includes a first housing 110 and a pushing member 121. A first sealing cavity and a first air nozzle 112 communicating with the first sealing cavity are formed in the first housing 110; the pushing member 121 is movably connected in the first housing 110, and at least a part of the pushing member 121 and the first sealing cavity are hermetically formed into a second sealing cavity 111, and the second sealing cavity 111 communicates with the first air nozzle 112. The pushing member 121 can move along its axial direction to change the volume of the second sealing cavity 111.

[0035] Optionally, see Figure 3, the air pressure regulating device 100 is connected to the airbag 200 to regulate the air pressure of the airbag 200. Exemplarily, the airbag 200 is provided with a second air nozzle, and the first air nozzle 112 of the first housing 110 is connected to the second air nozzle of the airbag 200, so that the second sealing cavity 111 of the first housing 110 communicates with the cavity of the airbag 200. When the pusher 121 moves along its axial direction, the volume of the second sealing cavity 111 can be changed, thereby the air pressure value of the airbag 200 can be adjusted. Optionally, the first air nozzle 112 of the first housing 110 can be connected to the second air nozzle of the airbag 200 through an air pipe 300.

[0036] It can be understood that when the air pressure regulating device 100 is connected to the airbag 200 and the pusher 121 is moved to reduce the volume of the second sealing cavity 111 (for example, moving the pusher 121 forward), the gas in the second sealing cavity 111 will enter the airbag 200, increasing the air pressure value of the airbag 200; when the pusher 121 is moved to increase the volume of the second sealing cavity 111 (for example, moving the pusher 121 backward), the gas in the airbag 200 will enter the second sealing cavity 111, reducing the air pressure value of the airbag 200. That is, the airbag 200 is inflated and deflated through the air pressure regulating device 100, so that the air pressure of the airbag 200 can be adjusted. During the process of adjusting the air pressure of the airbag 200, the first sealing cavity is not communicated with the outside, so that no airflow sound will be generated when the air pressure regulating device 100 is inflated and deflated, effectively reducing the noise and improving the use experience of the air pressure regulating device 100.

[0037] Optionally, a sealing member 122 is sleeved on the outer periphery of one end of the pusher 121, and the pusher 121 is hermetically connected to the first housing 110 through the sealing member 122.

[0038] Exemplarily, referring to Figure 1 , the pusher 121 is completely accommodated in the first sealing cavity, and the pusher 121 includes a first part 1211 and a second part 1212 arranged along its axial direction. The first part 1211 is arranged at the end of the pusher 121 close to the first air nozzle 112. The outer diameter of the first part 1211 is larger than the outer diameter of the second part 1212. A sealing member 122 is sleeved on the outer periphery of the first part 1211, and the first part 1211 is hermetically connected to the first housing 110 through the sealing member 122. Optionally, the sealing member 122 is a rubber sealing ring, and the inner diameter of the rubber sealing ring can be slightly smaller than the outer diameter of the first part 1211, so that the rubber sealing ring can be fixed on the outer periphery of the first part 1211 through its own deformation.

[0039] Optionally, in some embodiments, the air pressure regulating device 100 further includes a sensing component, and the sensing component is at least used to measure the air pressure value changed by the pusher 121 within a unit displacement.

[0040] It can be understood that before the air pressure regulating device 100 leaves the factory, the air pressure value changed by the pushing member 121 within a unit displacement can be measured by the sensing assembly. When the air pressure regulating device 100 is used later, the air pressure value regulated by the air pressure regulating device 100 can be controlled only by adjusting the displacement of the pushing member 121.

[0041] Optionally, in some embodiments, the sensing assembly includes a Hall element 132 and a magnetic member 133. The Hall element 132 is used to interact with the magnetic member 133. The Hall element 132 is mounted on one of the first housing 110 and the pushing member 121, and the magnetic member 133 is mounted on the other of the first housing 110 and the pushing member 121. At least two of the Hall element 132 and the magnetic member 133 are arranged along the axial direction of the pushing member 121.

[0042] Optionally, in some embodiments, the sensing assembly further includes a Hall induction plate 131. The Hall induction plate 131 is mounted on the first housing 110. Two Hall elements 132 are provided and are spaced apart along the axial direction of the pushing member 121 and mounted on the Hall induction plate 131. The Hall element 132 is electrically connected to the Hall induction plate 131, and the magnetic member 133 is mounted on the pushing member 121.

[0043] Exemplarily, referring to Figure 1 and Figure 4 , the Hall induction plate 131 is mounted on the inner wall of the first housing 110 and is located at the rear side of the first part 1211 of the pushing member 121. The two Hall elements 132 are respectively mounted at the rear end and the front end of the Hall induction plate 131. The magnetic member 133 is mounted on the second part 1212 of the pushing member 121 and is arranged opposite to the Hall induction plate 131. Optionally, the magnetic member 133 is a magnet. Optionally, the magnetic member 133 is fixed to the second part 1212 of the pushing member 121 by glue.

[0044] It can be understood that during the process of the pushing member 121 moving from the rear end to the front end of the first housing 110, the two Hall elements 132 will respectively interact with the magnetic member 133 on the pushing member 121. When the Hall element 132 at the rear end of the Hall induction plate 131 interacts with the magnetic member 133 on the pushing member 121, the Hall induction plate 131 emits a signal. At this time, the pressure value of the airbag 200 is measured and recorded as F1. When the Hall element 132 at the front end of the Hall induction plate 131 interacts with the magnetic member 133 on the pushing member 121, the Hall induction plate 131 emits a signal again. At this time, the pressure value of the airbag 200 is measured and recorded as F2. The horizontal distance between the two Hall elements 132 is denoted as L, and the movement of the pushing member 121 is a uniform movement. Then, the air pressure value ΔF changed by the pushing member 121 within a unit displacement can be calculated as ΔF = (F2 - F1) / L.

[0045] Therefore, by controlling the displacement of the pushing member 121, the air pressure value changed by the air pressure regulating device 100 can be controlled, and the air pressure value changed by the air pressure regulating device 100 can be digitalized, so that the air pressure can be accurately regulated; and the air pressure regulating device 100 in the embodiment of the present application does not need to regulate the air pressure value of the airbag 200 through an electromagnetic valve, which can further reduce noise and improve the use experience of the air pressure regulating device 100.

[0046] Optionally, the air pressure regulating device 100 further includes a pressure sensor. The Hall induction plate 131 is electrically connected to the pressure sensor. The pressure sensor is used to be connected to the airbag 200 and can be activated in response to the Hall induction plate 131 to measure the pressure value of the airbag 200. That is, when the Hall element 132 and the magnetic member 133 on the pushing member 121 are inductive, the Hall induction plate 131 emits a signal. After the pressure sensor receives the signal emitted by the Hall induction plate 131, it is activated and measures the pressure value of the airbag 200.

[0047] Optionally, when the pushing member 121 is located at the rearmost end of the first housing 110 (i.e., the starting point of the moving stroke of the pushing member 121), the Hall element 132 at the rear end of the Hall induction plate 131 and the magnetic member 133 on the pushing member 121 are inductive. At this time, the pressure value of the airbag 200 is F1; when the pushing member 121 is located at the foremost end of the first housing 110 (i.e., the end point of the moving stroke of the pushing member 121), the Hall element 132 at the front end of the Hall induction plate 131 and the magnetic member 133 on the pushing member 121 are inductive. At this time, the pressure value of the airbag 200 is F2. That is, the two Hall elements 132 are respectively arranged corresponding to the starting point and the end point of the stroke of the pushing member 121. The air pressure regulation area of the airbag 200 by the air pressure regulating device 100 in the embodiment of the present application is [F1, F2].

[0048] Of course, it is also possible that the Hall induction plate 131 and the Hall element 132 are installed on the pushing member 121, and the magnetic member 133 is installed on the first housing 110, and no specific limitation is made here. Exemplarily, the Hall induction plate 131 is installed on the second part 1212 of the pushing member 121, the two Hall elements 132 are installed on the Hall induction plate 131 at intervals along the axial direction of the pushing member 121, the magnetic member 133 is installed on the inner wall of the first housing 110, and the magnetic member 133 is arranged opposite to the Hall induction plate 131.

[0049] Optionally, in some embodiments, the air pressure regulating device 100 further includes a transmission member 141. The transmission member 141 is connected to the pushing member 121, and the transmission member 141 is used to axially push the pushing member 121 by its own rotation.

[0050] Optionally, in some embodiments, the transmission member 141 is provided with threads along its length direction, the pushing member 121 is provided with a threaded hole, and the transmission member 141 is passed through the threaded hole and is cooperatively connected with the threaded hole.

[0051] Exemplarily, the transmission member 141 is a screw rod, which is arranged on the side of the propulsion member 121 away from the first air nozzle 112. The propulsion member 121 is provided with a blind hole 1213 extending along its axial direction, and a threaded sleeve 123 is provided in the blind hole 1213. The threaded sleeve 123 is provided with a threaded hole, and the screw rod is passed through the threaded hole of the threaded sleeve 123 and is connected with the threaded hole. Optionally, the threaded sleeve 123 is fixedly connected to the propulsion member 121 by rubber encapsulation.

[0052] Optionally, in some embodiments, the air pressure regulating device 100 further includes a driving component 142 , wherein the driving component 142 is connected to the transmission member 141 , and the driving component 142 is used to drive the transmission member 141 to rotate.

[0053] Optionally, the driving component 142 is arranged outside the first shell 110, and the driving component 142 is fixed to the end face of the first shell 110 away from the first air nozzle 112 by means of a fixing plate 143 and a screw, that is, the driving component 142 is fixed to the rear end face of the first shell 110.

[0054] It can be understood that one end of the transmission member 141 needs to be connected to the driving member 142, and the other end of the transmission member 141 needs to extend into the first sealed cavity to connect with the propulsion member 121. Therefore, the transmission member 141 can be dynamically sealed with the first shell 110, so that when the transmission member 141 rotates, the first sealed cavity in the first shell 110 can also maintain a sealed state.

[0055] Optionally, the driving component 142 is a stepper motor. Exemplarily, when the stepper motor controls the transmission member 141 to rotate clockwise, the propulsion member 121 moves forward, and the air pressure regulating device 100 inflates the airbag 200; when the stepper motor controls the transmission member 141 to rotate counterclockwise, the propulsion member 121 moves backward, and the air pressure regulating device 100 deflates the airbag 200.

[0056] Optionally, the thread on the screw is an equal pitch thread, and the pitch of the screw is recorded as L1. When the stepper motor rotates one circle, the distance that the propeller 121 moves forward or backward is L1. In other words, when the stepper motor rotates one circle, the air pressure value changed by the air pressure regulating device 100 is ΔF1 = (F2-F1)*L1 / L. Let the single rotation angle of the stepper motor be φ, then when the single rotation angle of the stepper motor is φ, the air pressure value generated by the air pressure regulating device 100 is ΔF2 = (F2-F1)*L1*φ / (L*360).

[0057] That is to say, the air pressure regulating device 100 in the embodiment of the present application can control the air pressure regulation value by controlling the angle of a single rotation of the stepper motor, which can ensure the regulation accuracy of the air pressure regulating device 100.

[0058] Optionally, the air pressure regulating device 100 further includes a control board 144. A power interface 1441 for connecting to a power supply is provided on the control board 144. The control board 144 is electrically connected to the stepper motor to control the opening and closing, rotation direction (forward or reverse rotation), and rotation angle (or number of rotation turns) of the stepper motor.

[0059] Optionally, the Hall induction board 131 is also electrically connected to the control board 144. Exemplarily, when the Hall component 132 senses the magnetic part 133 on the propulsion part 121 and the Hall induction board 131 emits a signal, it means that the propulsion part 121 has moved to the starting point or the end point of its preset stroke. At this time, the control board 144 can control the stepper motor to close, or control the stepper motor to rotate in the reverse direction to prevent the movement of the propulsion part 121 from exceeding the preset stroke. That is, the induction component can also be used to control the actual movement stroke of the propulsion part 121 within the preset stroke.

[0060] Optionally, the air pressure regulating device 100 further includes a second housing 150. The front end face of the second housing 150 is connected to the rear end face of the first housing 110 by screws. The stepper motor and the control board 144 are both accommodated in the second housing 150, and the control board 144 is fixedly connected to the second housing 150 by screws. Optionally, a first opening is provided on the second housing 150, and the first opening is directly opposite to the power interface 1441 of the control board 144 so that the power interface 1441 is exposed to facilitate the connection of the power interface 1441 to the power supply. Optionally, both the second housing 150 and the first housing 110 are cylindrical.

[0061] Other components and operations of the air pressure regulating device 100 according to the first aspect embodiment of the present application are known to those of ordinary skill in the art and will not be described in detail here.

[0062] An embodiment of the second aspect of the present application provides an inflatable product. The inflatable product includes the air pressure regulating device 100 according to the first aspect embodiment of the present application, and further includes an airbag structure. The airbag structure is communicated with the second sealing cavity 111 through a first air nozzle 112.

[0063] Optionally, in some embodiments, referring to Figure 5 and Figure 6 , the inflatable product can be an inflatable pillow, and the airbag structure includes an airbag 200.

[0064] Exemplarily, the inflatable pillow includes a pillow body 400, an airbag 200, and a pressure adjustment device 100. A receiving cavity is formed in the pillow body 400. Both the airbag 200 and the pressure adjustment device 100 are accommodated in the receiving cavity. The airbag 200 is provided with a second air nozzle. The first air nozzle 112 of the pressure adjustment device 100 is communicated with the second air nozzle of the airbag 200 through an air tube 300, so that the pressure adjustment device 100 can adjust the air pressure value of the airbag 200, thereby adjusting the softness and hardness of the inflatable pillow.

[0065] Optionally, a second opening 410 is further formed in the pillow body 400. The second opening 410 is opposite to the power supply interface 1441 of the pressure adjustment device 100 to expose the power supply interface 1441 of the pressure adjustment device 100, facilitating the connection of the power supply interface 1441 to a power supply.

[0066] Of course, the inflatable product can also be an inflatable mattress, an airbag seat cushion, an airbag backrest, an airbag neck pillow, or other inflatable products, which are not specifically limited herein.

[0067] Other components and operations of the inflatable product according to the second aspect embodiments of the present application are known to those of ordinary skill in the art and will not be described in detail here.

[0068] The embodiments of the present application have been described in detail above with reference to the drawings. However, the present application is not limited to the above embodiments. Various changes can be made without departing from the spirit of the present application within the knowledge scope of those of ordinary skill in the art.

Claims

1. An air pressure regulating device, characterized in that: include: A first shell, wherein a first sealed cavity and a first gas nozzle connected to the first sealed cavity are formed in the first shell; A propeller is movably connected in the first shell, and the propeller and at least a portion of the first sealed cavity are sealed to form a second sealed cavity, and the second sealed cavity is connected to the first gas nozzle, and the propeller is movable along its axial direction to change the volume of the second sealed cavity.

2. The gas pressure regulating device according to claim 1, characterized in that: The air pressure regulating device also includes a sensing component, which is used at least to measure the air pressure value changed by the propulsion member within a unit displacement.

3. The gas pressure regulating device according to claim 2, characterized in that: The sensing component includes a Hall element and a magnetic component. The Hall element is used for mutual induction with the magnetic component. The Hall element is installed on one of the first shell and the propulsion member, and the magnetic component is installed on the other of the first shell and the propulsion member. At least two of at least one of the Hall element and the magnetic component are arranged along the axial direction of the propulsion member.

4. The gas pressure regulating device according to claim 3, characterized in that: The sensing assembly also includes a Hall sensing plate, which is mounted on the first shell. Two Hall components are provided, and the two Hall components are mounted on the Hall sensing plate at intervals along the axial direction of the propulsion member. The Hall component is electrically connected to the Hall sensing plate, and the magnetic component is mounted on the propulsion member.

5. The gas pressure regulating device according to claim 1, characterized in that: The air pressure regulating device further comprises a transmission member, wherein the transmission member is connected to the propulsion member, and the transmission member is used for driving the propulsion member to move axially through its own rotation.

6. The gas pressure regulating device according to claim 5, characterized in that: The transmission member is provided with threads along the length direction thereof, the propulsion member is provided with a threaded hole, the transmission member is passed through the threaded hole and is matched and connected with the threaded hole.

7. The gas pressure regulating device according to claim 6, characterized in that: The air pressure regulating device further comprises a driving component, wherein the driving component is connected to the transmission member and is used for driving the transmission member to rotate.

8. The gas pressure regulating device according to claim 7, characterized in that: The driving component is a stepping motor.

9. The gas pressure regulating device according to claim 1, characterized in that: A sealing member is sleeved on the outer periphery of one end of the propulsion member, and the propulsion member is sealed and connected to the first shell through the sealing member.

10. Inflatable product, characterized in that: The air pressure regulating device comprises the air pressure regulating device according to any one of claims 1 to 9, further comprising an air bag structure, wherein the air bag structure is connected to the second sealed cavity through the first air nozzle.

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