Inflatable device and inflatable part

Abstract

The present invention discloses an inflatable device and an inflatable part, which belongs to the technical field of inflatable devices. The inflatable device includes a valve, an air bag and an air nozzle structure. The valve has a valve body, a through airway is formed in the valve body, and the air nozzle structure is assembled in the through airway. The through airway includes a first airway and a second airway. The air bag is connected to the valve body and communicates with the second airway. The valve body has a one-way inflation hole structure and an air outlet. The air nozzle structure has an air nozzle body and an air inlet component arranged on the air nozzle body. The first airway, the air inlet component, the second airway and the one-way inflation hole structure form an air inlet path, and the air outlet, the second airway and the first airway form an air outlet path. This technology can complete inflation and deflation through a single air nozzle structure, which is convenient to operate. Moreover, the air pressure at the second airway can press the air nozzle structure tightly against the first airway, so that the first airway is sealed to ensure that it is not easy to deflate.

Description

Technical Field

[0001] The invention relates to the technical field of inflatable devices, in particular to an inflatable device and an inflatable pillow. Background Art

[0002] Traditional small inflatable products, such as inflatable toys, swimming rings, inflatable pillows, etc., are mostly inflated by manual blowing. This method is not only laborious but also unhygienic, especially for inflatable products used in public places. If manual blowing is used, it is very unhealthy, and if special equipment is used to inflate it, it is very troublesome. For private use, it is necessary to purchase an inflatable device separately, which is costly and inconvenient to use; for public places, due to the limited number of inflatable devices, it is often necessary to queue up, which is very inconvenient to use.

[0003] In order to solve the above-mentioned technical problems, inflatable products with built-in inflation devices have emerged. Since these inflation devices are built into the inflatable products, they are very convenient to use. For example, the patent announcement number is CN100547241C, and the patented technology of an inflation device is named, which includes that the inflation device includes a valve body and a compressible airbag, the valve body has an air inlet and a one-way air outlet, the airbag is connected to the valve body, and the airbag is connected to the air inlet and the air outlet through the internal channel of the valve body, the airbag is stretched, and the air enters the airbag from the air inlet, the airbag is compressed, and the gas in the airbag is discharged from the one-way air outlet. The inflation device in this technology does not need to use other electric inflators or compressors as air supply devices, but sucks gas from the outside through a compressible airbag and then fills it into the inner cavity of the inflatable product; and it can be easily combined with the inflatable product, with a simple structure and easy use.

[0004] The above technical solutions all achieve rapid inflation of small inflatable products, and are simple to operate, greatly meeting the application requirements of the products. However, there are also some technical problems. The deflation path is set on the outside of the air inlet channel of the valve body, the air inlet and the air outlet are not in the same airway, and the sealing is achieved by means of spin sealing, which is prone to leakage. Moreover, when deflation is performed, it is necessary to manually rotate the sealing cap. After each deflation, the sealing cap must be rotated to a sealed state during the next inflation, which is inconvenient to operate. Therefore, this technical problem needs to be solved. Summary of the invention

[0005] In order to overcome the deficiencies of the prior art, the present invention provides an inflation device and an inflation member, the purpose of which is to solve the technical problems in the prior art of complex deflation structure, inconvenient operation and easy deflation.

[0006] In order to solve the above technical problems, the basic technical solution proposed by the present invention is:

[0007] An inflatable device, comprising a valve, an air bag and an air nozzle structure, wherein the valve has a valve body, a through air passage is formed in the valve body, the air nozzle structure is assembled in the through air passage, the through air passage is composed of a first air passage and a second air passage distributed in a stepped manner, wherein the first air passage is a small end and the second air passage is a large end, the air bag is connected to the valve body and communicated with the second air passage;

[0008] The valve body has:

[0009] A one-way inflation hole structure configured to communicate with the second air channel when opened and to be inflated outwardly from the second air channel;

[0010] and an air outlet hole configured to communicate with a second air passage and located at a transition portion between the first air passage and the second air passage;

[0011] The air nozzle structure has:

[0012] A gas nozzle body configured to seal the gas outlet hole and the first gas passage when closed and to allow the gas outlet hole, the second gas passage and the first gas passage to form a gas leakage path when opened; and

[0013] An air intake component is configured to communicate with the first air channel and the second air channel to form an air intake path when opened, and to make the second air channel and the one-way inflation hole structure form an inflation path when closed, wherein the air intake component is arranged on the air nozzle body.

[0014] Furthermore, the cross-sections of the first airway and the second airway are in a convex shape, and the cross-sections of the first airway and the second airway are in a convex shape, and the valve body corresponding to the joint between the first airway and the second airway is a platform structure.

[0015] Furthermore, the air nozzle body has:

[0016] A sliding portion is configured to be slidably connected to the valve body and capable of axially reciprocating movement, and a sealing portion is fixed at the bottom end of the sliding portion. The sealing portion is tightly matched with the inner wall of the transition portion of the valve body to achieve sealing of the air outlet and the first air channel. When the sliding portion is pressed axially downward, the sealing portion is separated from the inner wall of the valve body so that the air outlet, the second air channel and the first air channel are connected.

[0017] Furthermore, the edge of the sealing portion has an air outlet sealing pad that can closely match the inner wall of the transition portion of the valve body to achieve sealing of the air outlet hole.

[0018] Furthermore, the air intake component includes an air intake hole arranged on the sealing portion, and the air intake hole is sealed with a flexible sealing pad. When the flexible sealing pad is opened, the first air channel, the air intake hole and the second air channel are connected.

[0019] Furthermore, the sealing portion is provided with a plurality of air inlet holes, and the plurality of air inlet holes are evenly distributed with the axis of the sliding portion as the center.

[0020] Furthermore, the first air passage has a sleeve fixedly connected to the valve body, and the sliding portion is slidably sleeved with the sleeve;

[0021] Among them, a column core cap is fixed on the upper end of the sliding part, and a return spring is sleeved on the outer side of the upper part of the sliding part located on the sleeve. The upper end of the return spring abuts against the column core cap, and the lower end abuts against the upper end surface of the sleeve. In the non-working state, the return spring is in a compressed state and lifts the sealing part to seal the air outlet and the first air duct.

[0022] The sliding part is also sleeved with a clamping ring, the relative axial position of the clamping ring and the sleeve remains unchanged and can rotate around the axis of the sleeve, and n protrusions are evenly distributed on the inner side surface of the clamping ring;

[0023] The lower circumferential side of the column core cap has n first bevel teeth, the circumferential side of the sliding portion has n second bevel teeth arranged in the opposite direction to the first bevel teeth, the sliding portion between the first bevel teeth and the second bevel teeth forms a recessed portion for the protrusion to slide, and the lower part of the sliding portion has n guide grooves uniformly distributed along the axial direction and connected to the recessed portion, the tooth tips of the first bevel teeth face the second tooth grooves of the second bevel teeth, and one guide groove is connected to one second tooth groove;

[0024] When the column core cap is pressed to make the sliding part move axially downward by a preset stroke, the protrusion slides out of the guide groove, and after the pressing part releases the external pressure, when the sliding part moves downward under the action of the return spring, the protrusion rotates by a preset angle and then stops at the second tooth groove of the second bevel tooth.

[0025] In addition, the present invention also proposes an inflatable part, including an inflatable airbag and any one of the above-mentioned inflatable devices; the inflatable airbag is sealed and connected to the valve body part corresponding to the first airway of the inflatable device so that this part of the inflatable device is exposed, and the other parts are located inside the inflatable airbag.

[0026] Furthermore, the extension of the valve body portion corresponding to the first air channel has a flange portion, and the inflatable airbag is sealed and connected to the flange portion.

[0027] The beneficial effects of the present invention are:

[0028] The technical solution of the present invention is an inflatable device and an inflatable part, wherein the inflatable device includes a valve, an air bag and an air nozzle structure, the valve has a valve body, a through airway is formed in the valve body, the air nozzle structure is assembled in the through airway, the through airway includes a first airway and a second airway, the air bag is connected to the valve body and communicates with the second airway; the valve body has a one-way inflation hole structure and an air outlet hole; the air nozzle structure has an air nozzle body and an air inlet component arranged on the air nozzle body. The first airway, the air inlet component, the second airway and the one-way inflation hole structure form an air inlet path, and the air outlet hole, the second airway and the first airway form an air outlet path. The air inlet and air outlet of this technology both pass through the first airway, so that the air inlet and air outlet structure are simplified, and there is no need to set an additional air outlet structure in other places of the valve body. Inflation and air outlet can be completed through a single air nozzle structure, which makes the operation convenient, and the air pressure at the second airway can press the air nozzle structure tightly against the first airway, so that the first airway is sealed and it is not easy to be deflated. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 A schematic diagram of the appearance structure of an inflatable device of the present invention;

[0030] Figure 2 An exploded view of an inflatable device of the present invention;

[0031] Figure 3 is a cross-sectional view of the interior of an inflatable device;

[0032] Figure 4 A cross-sectional view of an air charging device in an air intake state;

[0033] Figure 5 A cross-sectional view of an inflatable device in an inflated state;

[0034] Figure 6 A cross-sectional view of an inflatable device in a deflated state;

[0035] Figure 7 is a schematic diagram of the structure of the air nozzle;

[0036] Figure 8 is a schematic diagram of the structure of a flexible sealing pad;

[0037] Fig. 9 is a schematic diagram of the structure of the inflatable component;

[0038] Fig.10 is a structural schematic diagram of a pressing structure;

[0039] Fig.11 is a schematic diagram of the structure of the air nozzle;

[0040] Fig.12 It is a schematic diagram of the structure of the snap ring. DETAILED DESCRIPTION

[0041] The following will be combined with the attached Figure 1 To Attachment Fig.12 The technical solutions in the embodiments of the present invention are described clearly and completely. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] It should be noted that if there are directional indications (such as up, down, left, right, front, back, etc.) involved in the embodiments of the present invention, the directional indications are only used to explain the relative position relationship and movement of the components under a certain posture (as shown in the attached drawings). If the specific posture changes, the directional indications will also change accordingly. Figure 4 To Attachment Figure 6 The direction of the arrow represents the direction of air flow, that is, the air path.

[0043] See also Figures 1 to 5 , an inflatable device, comprising a valve 1, an airbag 2 and an air nozzle structure 3, the valve 1 having a valve body 11, a through airway formed in the valve body 11, the air nozzle structure 3 being assembled in the through airway, the through airway consisting of a first airway 12 and a second airway 13 distributed in a stepped manner, wherein the first airway 12 is a small end and the second airway 13 is a large end, the airbag 2 is connected to the valve body 11 and communicates with the second airway 13. The valve body 11 has a one-way inflatable hole structure 14 configured to communicate with the second airway 13 when opened and inflate outward from the second airway 13, and an air outlet 15 configured to communicate with the second airway 13 and located at the transition portion between the first airway 12 and the second airway 13. The air nozzle structure 3 has an air nozzle body 31 which is configured to seal the air outlet hole 15 and the first air channel 12 when closed and to form an air leakage path with the air outlet hole 15, the second air channel 13 and the first air channel 12 when opened, and an air intake component 32 which is configured to connect with the first air channel 12 and the second air channel 13 to form an air intake path when opened and to form an air intake path with the second air channel 13 and the one-way inflation hole structure 14 when closed, wherein the air intake component 32 is arranged on the air nozzle body 31.

[0044] See also Figure 3The valve body 11 is an integrated structure, and the first air channel 12 and the second air channel 13 are formed by hollowing out the inside of the valve body 11. The first air channel 12 and the second air channel 13 are interconnected, and the first air channel 12 passes through the upper end surface of the valve body 11, and the second air channel 13 passes through the lower end surface of the valve body 11. Preferably, in this embodiment, the shape of the valve body 11 is roughly convex, and the cross-sections of the first air channel 12 and the second air channel 13 are also distributed in a convex shape. The valve body 11 corresponding to the joint of the first air channel 12 and the second air channel 13 is a platform structure. The air outlet 15 is arranged on the platform structure. Preferably, two air outlets 15 are provided, and the two air outlets 15 are fan-shaped and are evenly distributed around the axis of the through-air channel. Of course, the design of the air outlet 15 is not limited to this, and it can also be arranged in other forms, such as using a plurality of cylindrical holes in the form of evenly distributed around the through-air channel as the axis. It should be understood that in this embodiment, the cross-sections of the first air channel 12 and the second air channel 13 are preferably circular.

[0045] Among them, the one-way air-filling hole structure 14 is arranged at the side wall of the valve body 11 corresponding to the second air channel 13. Preferably, four one-way air-filling hole structures 14 are evenly distributed on the valve body 11. The one-way air-filling hole structure 14 is realized by using the existing technology, and specifically includes a through hole 141 penetrating the side wall of the valve body 11, and an air intake cushion 142 is arranged in the through hole. In the non-working state, the air intake cushion seals the through hole 141. When the air pressure in the second air channel 13 increases during inflation, the air intake cushion 142 can be squeezed and deformed, so that the through hole is opened, and the gas is transported outward from the second air channel 13. When an inflation process is completed, the air intake cushion elastically resets to a sealed state.

[0046] In detail, the air nozzle structure 3 is used to achieve air intake and air release. Figure 7 , which is a schematic diagram of the structure of the air nozzle structure 3; the air nozzle structure 3 includes an air nozzle body 31 and an air intake component 32. In the non-deflated state, the air nozzle body 31 always seals the air outlet 15 and the first air channel 12. The air intake component 32 remains sealed in the inflation state and opens in the air intake state. Figure 6 In the deflated state, the air nozzle body 31 is pressed downward and separated from the lower end surface of the transition portion 111, and the air outlet 15, the second air channel 13 and the first air channel 12 are connected to form a deflated path. Figure 4 , which is a schematic diagram of the air intake state; when the airbag 2 is stretched, negative pressure is formed in the second air passage 13 and the airbag 2, the upper end of the air intake component 32 is pressed and opened, and the first air passage 12, the air intake component 32 and the second air passage 13 form an air intake path. Figure 5, which is a schematic diagram of the airbag 2 being compressed for inflation. Specifically, the airbag 2 is compressed, the air in the airbag 2 and the second airway 13 is compressed, the pressure increases, the lower end of the airbag component 32 is compressed and closed, the one-way inflation hole structure 14 is opened, and the second airway 13 and the one-way inflation hole structure 14 form an inflation path.

[0047] In detail, the air nozzle body 31 has a sliding portion 311 configured to be slidably connected to the valve body 11 and capable of axially reciprocating movement, and a sealing portion 312 fixed at the bottom end of the sliding portion 311. The sealing portion 312 is tightly matched with the inner wall of the transition portion of the valve body 11 to achieve sealing of the air outlet 15 and the first air channel 12. When the sliding portion 311 is pressed downward in the axial direction, the sealing portion 312 is separated from the inner wall of the valve body 11 so that the air outlet 15, the second air channel 13 and the first air channel 12 are connected. It should be understood that in this embodiment, the sealing portion 312 is located directly below the air outlet 15 and the first air channel 12. When moving upward, the edge portion of the sealing portion 312 contacts the transition portion 111 and seals the air outlet 15 and the first air channel 12. The sliding portion 311 and the sealing portion 312 are vertically arranged, and the lower end of the sliding portion 311 is fixedly connected to the center position of the sealing portion 312. Preferably, the sliding portion 311 and the sealing portion 312 are an integrated structure, and are formed by an integrated molding design. In this embodiment, the sealing portion 312 is preferably disc-shaped.

[0048] Specifically, in order to ensure the sealing performance when the edge of the sealing portion 312 contacts the transition portion 111, the edge of the sealing portion 312 has an outlet gasket 33 that can be closely matched with the inner wall of the transition portion of the valve body 11 to achieve sealing of the gas outlet hole 15 and the first gas channel 12. The outlet gasket 33 is preferably made of silicone material, is flexible, and can ensure airtightness when in contact with the inner wall of the transition portion 111. Specifically, the outlet gasket 33 is in a circular ring shape, and has an annular groove on its inner side, through which the edge of the sealing portion 312 is sleeved and fixed.

[0049] Detailed, such as Figure 8As shown, the figure is a schematic diagram of the structure of the air nozzle body 31. The air intake component 32 includes an air intake hole 321 arranged on the sealing part 312, and the air intake hole 321 is sealed with a flexible sealing pad 322. When the flexible sealing pad 322 is opened, the first air channel 12, the air intake hole 321 and the second air channel 13 are connected. It should be understood that the air intake hole 321 is tightly fitted with the flexible sealing pad 322 in the non-use state to achieve sealing. When the airbag 2 is stretched, the second air channel 13 and the inside of the airbag 2 form a negative pressure, and the air pressure at the first air channel 12 is greater than that at the second air channel 13. The flexible sealing pad 322 is opened downward to form an air intake path. It should be noted that in this embodiment, the flexible sealing pad 322 is made of silicone material. In this embodiment, the sealing part 312 has a plurality of air intake holes 321, and the plurality of air intake holes 321 are evenly distributed with the axis of the sliding part 311 as the center. Specifically, it includes four air inlet holes 321 , each of which is fan-shaped. The flexible sealing pad 322 seals the lower ends of the four air inlet holes 321 , that is, it is in close contact with the lower end surface of the sealing portion 312 .

[0050] Specifically, the flexible sealing pad 322 includes a body 3221 and a connecting portion 3222, wherein the body 3221 and the connecting portion 3222 are a conjoined structure, wherein the connecting portion 3222 is fixedly connected to the center of the sliding portion 311, and specifically, the connecting portion 3222 has a convex structure on the periphery, and the convex structure is stuck by the inner cavity 3111 of the sliding portion 311, and when stuck, the body 3221 seals the air inlet 321. The convex structure makes the entire flexible sealing pad 322 and the sliding portion 311 firmly fixed. When air is inhaled, the body 3221 is deformed so that the air inlet 321 is opened, and the air at the first air passage 12 enters the second air passage 13 and the inner bag 2 through the air inlet 321.

[0051] Preferably, in order to ensure that the flexible sealing gasket 322 can better seal the air inlet hole 321 , the lower end surface of the sealing portion 312 where the air inlet hole 321 is arranged is arranged as an inwardly recessed arc structure, which is conducive to better contact of the flexible sealing gasket 322 .

[0052] In addition, for better sealing, a sealing cover 16 is provided at the open end of the first air passage 12 to prevent air leakage in the first air passage 12 .

[0053] See also Figure 3, the first air passage 12 has a sleeve 112 fixedly connected to the valve body 11, and the sliding part 311 is slidably sleeved with the sleeve 112; wherein, a column core cap 34 is fixed to the upper end of the sliding part 311, and a return spring 35 is sleeved on the outer side of the upper part of the sliding part 311 located at the sleeve 112, the upper end of the return spring 35 abuts against the column core cap 34, and the lower end abuts against the upper end surface of the sleeve 112, and the return spring 35 is in a compressed state in the non-working state and lifts the sealing part 312 to seal the air outlet 15 and the first air passage 12. The positioning and support of the entire air nozzle structure 3 are realized by the sleeve 112, wherein the sliding part 311 can move up and down relative to the sleeve 112 and penetrate the air passage axially. Since the return spring 35 is in contact with the column core cap 34 and the sleeve 112 respectively, it can produce a lifting effect on the entire valve structure 3, so that the sealing portion 312 is in sealing contact with the lower end surface of the valve body 11. When the column core cap 34 is pressed, the return spring 35 is further compressed, so that the sealing portion 312 moves downward to achieve air release. Preferably, the column core cap 34 has an extension portion 341, which is sleeved on the outside of the sliding portion 311, and the return spring 35 is sleeved on the outside of the extension portion 341.

[0054] It should be noted that in the present technical solution, the one-way inflation hole structure 14 is in a sealed state in the original state, the sealing portion 312 is also in a state of sealing the air inlet hole 15 and the first air channel 12, and the air inlet component 32 is also in a sealed state. When it is necessary to inflate or deflate, refer to the following method:

[0055] 1) Intake process:

[0056] The airbag 2 is stretched to form negative pressure in the airbag 2 and the second airway 13 , and the flexible sealing pad 322 is opened under the atmospheric pressure at the first airway 12 , so that the air at the first airway 12 enters the second airway 13 and the airbag 2 .

[0057] 2) Inflation process:

[0058] The airbag 2 is compressed, and the pressure in the second air passage 13 and the airbag 2 increases, so that the flexible sealing pad 322 is squeezed upward to seal the air inlet 321. At the same time, the one-way inflation hole structure 14 is opened, and air enters the inflation environment. After the first inflation is completed, the above-mentioned air intake process is repeated, and the entire inflatable part is directly inflated.

[0059] 3) Deflation process:

[0060] Press the sliding part 311 to push the sealing part 312 to disengage from the transition part 111. At this time, the air inlet 15, the second air duct 13 and the first air duct 12 are connected, that is, the deflation paths of the air inlet 15, the second air duct 13 and the first air duct 12 are connected, and the high-pressure air in the inflatable part will be deflated outward along the deflation path.

[0061] Furthermore, the first air passage 12 has a sleeve 112 fixedly connected to the valve body 11, and the sliding portion 311 has a rebound structure configured to keep the sealing portion 312 in a downward state when the sliding portion 311 is pressurized for the first time and to restore the sealing portion 312 when it is pressurized for the second time.

[0062] In summary, the air intake stage and the air deflation stage of the technical solution of the present invention are both through the first air duct 12, unlike the traditional technology which requires the design of two holes (the air intake hole and the air deflation hole) that are connected to the outside world. This can further improve the air tightness of the inflation device and reduce the risk of air deflation. Moreover, there is no need to use a rotating part to achieve the sealing and deflation of the air deflation hole, which makes the structure simpler and the operation more convenient.

[0063] In addition, the present invention also provides an inflatable component, which includes but is not limited to an inflatable pillow, a swimming ring, an inflatable mattress and an inflatable toy.

[0064] For details, see Fig. 9 , which is a schematic diagram of the structure of the inflatable part. The inflatable part includes an inflatable airbag 10 and any one of the above-mentioned inflatable devices 20; the inflatable airbag 10 is sealedly connected to the valve body 11 portion corresponding to the first airway 12 of the inflatable device 20 and this portion of the inflatable device 20 is exposed, and the other portions are located inside the inflatable airbag 10. That is, except for the valve body 11 portion corresponding to the first airway 12 of the inflatable device 20 being exposed outside the inflatable airbag 10, the other portions are located inside the inflatable airbag 10.

[0065] In order to better contact the valve body 11 with the inflatable airbag 10, the extension of the valve body 11 corresponding to the first airway 12 has a flange portion 113, and the inflatable airbag 10 is sealed and connected to the flange portion 113. Specifically, the inflatable airbag 10 can be fixedly connected to the flange portion 113 by welding.

[0066] In addition, in order to facilitate welding with the inflatable airbag 10, a welding adhesive layer 114 is also sleeved on the peripheral side of the flange portion 113. The welding adhesive layer 114 seals the flange portion 113, and the inflatable airbag 10 and the welding adhesive layer 114 are welded during assembly.

[0067] The inflatable piece of the present invention, because it is combined with the inflatable device of the present invention, has a simple structure and is easy to operate, and can meet the use requirements of users.

[0068] Preferably, in order to avoid the inconvenience caused by pressing the column core cap 34 all the time during pressure relief, the present technical solution also proposes a pressing structure, see Figure 10-12 Specifically, after pressing the column core cap 34, the pressure relief state is maintained and the sealing is achieved by pressing again. Specifically, the sliding portion 311 is also sleeved with a clamping ring 4, the relative axial position of the clamping ring 4 and the sleeve 112 remains unchanged and can rotate around the axis of the sleeve 112, and n protrusions 41 are evenly distributed on the inner side surface of the clamping ring 4;

[0069] The lower circumferential side of the column core cap 34 has 2n first bevel teeth 342, the circumferential side of the sliding portion 311 has 2n second bevel teeth 3112 arranged in the opposite direction to the first bevel teeth 342, the sliding portion 311 part between the first bevel teeth 342 and the second bevel teeth 3112 forms a recessed portion 3113 for the protrusion 41 to slide, and the lower part of the sliding portion 311 has n guide grooves 3114 uniformly distributed along the axial direction and connected to the recessed portion 3113, and the first bevel teeth 342 and the second bevel teeth 3112 are arranged on the sliding portion 311. The tooth tip of 42 faces the second tooth groove of the second bevel tooth 3112, and one guide groove 3114 is connected with a second tooth groove 31121; when the column core cap 34 is pressed to make the sliding part 311 move axially downward by a preset stroke, the protrusion 41 slides out of the guide groove 3114, and after the column core cap 34 is relieved of external pressure, the sliding part 311 moves downward under the action of the return spring 35, and the protrusion 41 rotates by a preset angle and then stops at the second tooth groove 31121 of the second bevel tooth 3112. Preferably, n is 1. In order to fix the snap ring 4, a clamping sleeve 115 is provided below the sleeve 112, and the clamping sleeve 115 is fixed to the lower end of the sleeve 112 and forms an annular clamping groove (not shown in the figure) with the lower end surface of the sleeve 112, and the snap ring 4 is accommodated in the annular clamping groove and can rotate in the annular clamping groove.

[0070] Deflating process: the sliding part 311 is located at the highest end of its travel range, that is, the position closest to the sleeve 112, where the protrusion 41 is located in the guide groove 3114. When the column core cap 34 is pressed, the entire sliding part 311 moves downward relative to the sleeve 112, and the guide groove 3114 is disengaged from the protrusion 41. As the sliding part 311 continues to move downward, the protrusion 41 contacts the arc bevel of the first bevel tooth 342. As the sliding part 311 moves further downward, the protrusion 41 rotates due to the constraint of the arc bevel of the first bevel tooth 342 until the protrusion 41 contacts the first tooth groove at the first bevel tooth 342, and at this time, the protrusion 41 is opposite to the second tooth groove; then let go, and under the action of the reset spring 35, the sliding part 311 moves upward, so that the protrusion 41 falls into the second tooth groove 31121 and is stuck. In this way, since the sliding part 311 finally moves down a distance, the sealing part 312 is displaced to achieve deflation, and the deflated state can be maintained, so there is no need to press the sliding part 311 for deflation. When the column core cap 34 is pressed again, the sliding part 311 moves down, the protrusion 41 contacts the arc bevel of an adjacent first bevel tooth 342, and under the action of the arc bevel, the retaining ring 24 rotates an angle and the protrusion falls into the first tooth groove 3421. At this time, let go, and under the action of the reset spring 35, the sliding part 311 moves up and resets, so that the protrusion 41 contacts the arc bevel of the previous adjacent second bevel tooth 3112, and under the elastic force of the reset spring 35, it falls into the guide groove 3114 along the arc bevel, so that the sealing part 312 is sealed. The above process realizes a process from sealing-deflation to sealing. If deflation is required again, repeat the above steps.

[0071] According to the disclosure and teaching of the above description, those skilled in the art to which the present invention belongs may also make changes and modifications to the above embodiments. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present invention should also fall within the scope of protection of the claims of the present invention. In addition, although some specific terms are used in this specification, these terms are only for the convenience of description and do not constitute any limitation to the present invention.

Claims

1. An inflatable device, comprising a valve (1), an air bag (2) and an air nozzle structure (3), wherein the valve (1) has a valve body (11), a through air passage is formed in the valve body (11), the air nozzle structure (3) is assembled in the through air passage, the through air passage is composed of a first air passage (12) and a second air passage (13) distributed in a stepped manner, wherein the first air passage (12) is a small end and the second air passage (13) is a large end, the air bag (2) is connected to the valve body (11) and communicated with the second air passage (13), characterized in that: The valve body (11) comprises: a one-way inflation hole structure (14) configured to communicate with the second air channel (13) when opened and to be inflated outwardly from the second air channel (13); and an air outlet (15) configured to communicate with the second air channel (13) and located at a transition portion between the first air channel (12) and the second air channel (13); The air nozzle structure (3) has: A gas nozzle body (31) configured to seal the gas outlet hole (15) and the first gas channel (12) when closed and to enable the gas outlet hole (15), the second gas channel (13) and the first gas channel (12) to form a gas leakage path when opened; and An air intake component (32) is configured to be connected with the first air channel (12) and the second air channel (13) to form an air intake path when opened, and to enable the second air channel (13) and the one-way inflation hole structure (14) to form an inflation path when closed, wherein the air intake component (32) is arranged on the air nozzle body (31).

2. An inflatable device according to claim 1, characterized in that: The cross sections of the first air channel (12) and the second air channel (13) are in a convex shape, and the valve body (11) corresponding to the joint between the first air channel (12) and the second air channel (13) is a platform structure.

3. An inflatable device as claimed in claim 1, characterized in that: The gas nozzle body (31) has: A sliding portion (311) is configured to be slidably connected to the valve body (11) and capable of axially reciprocating movement, and a sealing portion (312) is fixed at the bottom end of the sliding portion (311). The sealing portion (312) is tightly matched with the inner wall of the transition portion of the valve body (11) to achieve sealing of the air outlet (15) and the first air channel (12). When the sliding portion (311) is pressed downward in the axial direction, the sealing portion (312) is separated from the inner wall of the valve body (11), so that the air outlet (15), the second air channel (13) and the first air channel (12) are connected.

4. An inflatable device as claimed in claim 3, characterized in that: The edge of the sealing portion (312) has an air outlet sealing pad (33) that can tightly match the inner wall of the transition portion of the valve body (11) to achieve sealing of the air outlet hole (15).

5. An inflatable device as claimed in claim 3, characterized in that: The air intake component (32) comprises an air intake hole (321) arranged on the sealing portion (312), and the air intake hole (321) is sealed with a flexible sealing pad (322). When the flexible sealing pad (322) is opened, the first air channel (12), the air intake hole (321) and the second air channel (13) are connected.

6. An inflatable device as claimed in claim 5, characterized in that: The sealing portion (312) is provided with a plurality of air inlet holes (321), and the plurality of air inlet holes (321) are evenly distributed with the axis of the sliding portion (311) as the center.

7. An inflatable device as claimed in claim 3, characterized in that: The first air passage (12) has a sleeve (112) fixedly connected to the valve body (11), and the sliding portion (311) is slidably sleeved with the sleeve (112); A column core cap (34) is fixed to the upper end of the sliding part (311); the sliding part (311) is located on the outer side of the upper part of the sleeve (112) and is sleeved with a return spring (35); the upper end of the return spring (35) abuts against the column core cap (34), and the lower end abuts against the upper end surface of the sleeve (112); in a non-working state, the return spring (35) is in a compressed state and lifts the sealing part (312) to seal the air outlet (15) and the first air channel (12).

8. An inflatable device according to claim 7, characterized in that: The sliding portion (311) is also sleeved with a snap ring (4), the snap ring (4) and the sleeve (112) have a constant axial relative position and can rotate around the axis of the sleeve (112), and n protrusions (41) are evenly distributed on the inner side surface of the snap ring (4); The lower circumferential side of the column core cap (34) has 2n first oblique teeth (342), the circumferential side of the sliding portion (311) has 2n second oblique teeth (3112) arranged in the opposite direction to the first oblique teeth (342), the sliding portion (311) between the first oblique teeth (342) and the second oblique teeth (3112) forms a recessed portion (3113) for the protrusion (41) to slide, and the lower portion of the sliding portion (311) has n guide grooves (3114) uniformly distributed along the axial direction and connected to the recessed portion (3113), the tooth tips of the first oblique teeth (342) face the second tooth grooves of the second oblique teeth (3112), and one of the guide grooves (3114) is connected to one of the second tooth grooves; When the column core cap (34) is pressed to cause the sliding portion (311) to move axially downward by a preset stroke, the protrusion (41) slides out of the guide groove (3114), and after the pressing portion (221) releases the external pressure, the sliding portion (311) moves downward under the action of the return spring (35), and the protrusion (41) rotates by a preset angle and then stops at the second tooth groove of the second bevel tooth (3112).

9. An inflatable member, comprising an inflatable airbag (10), characterized in that: Also includes: An inflatable device (20) as described in any one of claims 1 to 8; the inflatable airbag (10) is sealedly connected to the valve body (11) portion corresponding to the first air channel (12) of the inflatable device (20) so that this portion of the inflatable device (20) is exposed, and the other portions are located inside the inflatable airbag (10).

10. An inflatable member according to claim 9, characterized in that: The extension of the valve body (11) corresponding to the first air channel (12) has a flange portion (113), and the inflatable airbag (10) is sealed and connected to the flange portion (113).

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