A foldable airbag structure and its inflation and deflation method

Abstract

The present invention discloses a foldable airbag structure, which mainly includes a main airbag, an airbag plug and a sub-airbag; the main airbag and two airbag plugs constitute the airbag body; there are at least two sub-airbags, which are symmetrically fixed inside the airbag body, and the airbag body is divided into at least three independent air chambers. The present invention also discloses an inflation and deflation method of the foldable airbag structure. The present invention forms an independent sub-airbag with an independent air inlet pipe and an air nozzle inside the airbag body, which can realize the folding of the airbag when deflated.

Description

Technical Field

[0001] The invention belongs to the technical field of parts of water surface bearing and transportation equipment, and in particular relates to a foldable air bag structure and an inflation and deflation method thereof. Background Art

[0002] Due to the limitation of storage space, it is usually desired to control the volume of small water equipment after folding, but it is difficult to design its folding structure.

[0003] In particular, the airbag, which is an important buoyancy component of small water equipment, has a large volume when inflated, and how to form a folding structure with the smallest volume after deflation requires special design.

[0004] At present, the inflatable airbags on the market are all folded and arranged manually after being deflated, and there is no special design that can automatically (semi-automatically) fold the structure when inflated or deflated. Summary of the invention

[0005] The purpose of the present invention is to solve the folding problem of airbags of water equipment, and to provide a foldable airbag structure. An independent air chamber structure is adopted inside the airbag body, so that the airbag can be easily folded when deflated.

[0006] The present invention provides a foldable airbag structure, which mainly includes a main airbag, an airbag plug and a sub-airbag; the main airbag and two airbag plugs constitute the airbag body; there are at least two sub-airbags, which are symmetrically fixed inside the airbag body, dividing the airbag body into at least three independent air chambers.

[0007] As a preferred means, the sub-airbag and the main airbag share a portion of the airbag body.

[0008] Furthermore, the two sub-airbags are of the same size, and their ends do not extend into the airbag plug.

[0009] As a preferred means, the three independent air chambers respectively have independent air intake pipes and air nozzles.

[0010] As a preferred means, a double-headed air nozzle assembly is installed on the main airbag body.

[0011] Furthermore, the double-ended air nozzle assembly comprises a double-ended air nozzle, an upper air nozzle sealing cover, and a lower air nozzle sealing cover.

[0012] Furthermore, the sub-airbag and / or the main airbag each have an interface inside the airbag body through which a pipeline is connected to the inside of the double-ended air nozzle.

[0013] The present invention also provides a method for inflating and deflating the aforementioned foldable airbag structure:

[0014] When inflating, the two sub-airbags are inflated first, and then the main airbag is inflated; when deflated, the main airbag is deflated first, and then the sub-airbags are deflated.

[0015] The present invention forms an independent sub-airbag with an independent air inlet pipe and an air nozzle in the airbag body. When inflating, the two sub-airbags are inflated first, and then the main airbag is inflated; when deflated, the main airbag is first evacuated, and then the sub-airbag is evacuated. The airbag can be folded when deflated.

[0016] Another advantage of the present invention is that an independent air chamber structure is formed in the airbag body, and with the cooperation of the air pressure control system, the buoyancy of the sub-airbag does not decrease when it leaks, which greatly increases the safety of the water equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of the foldable airbag structure of the present invention viewed from the front at a 45° angle;

[0018] Figure 2 This is a schematic diagram of the three-dimensional structure of the foldable airbag structure of the present invention when viewed from the bottom at a 45° angle;

[0019] Figure 3 yes Figure 1 A schematic diagram of a transverse cross-sectional structure of a foldable airbag structure is shown;

[0020] Figure 4 yes Figure 1 A longitudinal front view of the foldable airbag structure shown;

[0021] Figure 5 It is a schematic diagram of the three-dimensional structure of the double-ended air nozzle assembly of the present invention when viewed from a 45° angle;

[0022] Figure 6 It is a schematic diagram of the exploded structure of the double-ended gas nozzle assembly of the present invention;

[0023] Figure 7 It is a schematic diagram of the inflation and deflation process of the foldable airbag structure of the present invention;

[0024] Figure 8 It is a schematic diagram of the folding structure of the foldable airbag structure of the present invention (without the airbag plug).

[0025] Description of reference numerals:

[0026] 1. Main airbag; 11. Handle; 13. Double-ended air nozzle assembly; 16. Main air nozzle; 17. Reverse air nozzle; 18. Air pipe fixing piece;

[0027] 2. Airbag plug; 20. Safety rope fixing piece; 21. Oblique hinge connector; 22. Large hinge connector; 23. Airbag plug seam reinforcement strip;

[0028] 30. Sub-airbag 1; 31. Sub-airbag 2;

[0029] 5. Pelvic fin;

[0030] 7. Pelvic fin fixings;

[0031] A. Double-ended air nozzle; B. Upper sealing cover of air nozzle; C. Lower sealing cover of air nozzle. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-8 The present invention is described in further detail:

[0033] See attached Figure 1 and 2 The present invention provides a foldable airbag structure, which mainly includes a main airbag 1, an airbag plug 2 and a sub-airbag. The main airbag 1 and the two airbag plugs 2 constitute the airbag body. Figure 3 There are at least two sub-airbags (sub-airbag 1 30 and sub-airbag 2 31), which are symmetrically fixed inside the airbag body, dividing the airbag body into at least three independent air chambers. Preferably, the sub-airbags and the main airbag 1 share a portion of the airbag body. Furthermore, the two sub-airbags are of the same size, and their ends do not extend into the airbag plug 2.

[0034] See attached Figure 4 The airbag plug 2 has a truncated cone shape. When the airbag structure is inflated, the force on the airbag plug 2 is unbalanced. Therefore, it is necessary to provide an airbag plug seam reinforcement strip 23 on its outer surface to prevent the seam formed by the airbag plug from cracking. During the manufacturing process, when the airbag plug 2 is combined with the main airbag 1, the reinforcement strip has an angle position requirement. Figure 4 The projection position in (the longitudinal orthographic projection of the foldable airbag structure) can only fall within the range of the sub-airbag 30 or the sub-airbag 31, and be offset from the center of the sub-airbag by about 20-30 degrees, so as not to have any adverse effect on the folding and storage of the airbag plug 2.

[0035] See attached Figure 1 and 3-6, the three independent air chambers have independent air intake pipes and air nozzles, respectively. The sub-airbag 1 30 and sub-airbag 2 31 each have a main air nozzle 16, and the main airbag 1 has a reverse air nozzle 17, and the main airbag 1 has a reverse air nozzle 17, and the main air nozzle 16 and the reverse air nozzle 17 have the same structure. As a preferred means, the main air nozzle 16 and the reverse air nozzle 17 are equipped with an air pipe fixing part 18, and the air pipe fixing part 18 is installed on the outer wall of the main airbag 1, and is used to fix the air pipe when the sub-airbag is inflated and deflated. The three independent air chambers can be inflated and deflated respectively through two main air nozzles 16 and one reverse air nozzle 17.

[0036] The main airbag body is also provided with a double-ended air nozzle assembly 13. Figure 5 and 6 The double-ended air nozzle assembly 13 includes a double-ended air nozzle A, an upper air nozzle sealing cover B, and a lower air nozzle sealing cover C. Preferably, the upper air nozzle sealing cover B is connected to the double-ended air nozzle A by bolts, and the lower air nozzle sealing cover C is connected to the double-ended air nozzle A by bonding to form a whole, and then the whole is bonded to the outer wall of the main airbag 1.

[0037] The main function of the double-ended air nozzle assembly 13 is to prevent the external air pipe from being entangled with the airbag body when the two side sub-airbags are inflated, thereby reducing the factors that are not conducive to the storage of the airbag. The sub-airbag and / or the main airbag have pipes connected to the double-ended air nozzle A inside the airbag body ( Figure 4 Here, the connection structure between the pipeline and the interface is detachable or switchable or convertible.

[0038] When using the dual-end air nozzle assembly for inflation, connect the air tube to the external interface of the dual-end air nozzle A ( Figure 4 The tail direction of the middle arrow), and then through the interface inside the double-ended air nozzle A ( Figure 5 The double-ended air nozzle A structure realizes the function of internal and external conversion at the thinnest thickness, which can better solve the conversion problem when conditions do not allow for exposed pipes, and has the advantages of not occupying the thickness space after storage, good conversion sealing, and convenient replacement of damaged pipes.

[0039] Attached Figure 1 and 3 -6 only shows the optimal embodiment structure of the airbag and should not be understood as a limitation on the actual product.

[0040] Attached Figure 7 and 8The schematic structures of the changing states of the airbag during the inflation and deflation processes of the airbag structure of the present invention are respectively shown.

[0041] When the present invention is inflated, the two sub-airbags are first inflated to form a Figure 7 The state shown is shown, and then the main airbag is inflated. The final air pressure of the sub-airbag inflation is affected by the inflation pressure of the sub-airbag and the inflation pressure of the main airbag at the same time, and the air pressure of each air chamber can be accurately controlled by the air pressure detection device.

[0042] When deflation, first deflate the main airbag to form Figure 7 In the state shown, the sub-airbag is then deflated, and in the process of deflation of the sub-airbag, the middle parts of both sides of the main airbag are properly arranged so that they are always folded and bent inward along the middle seams on both sides, and finally two opposing "Σ"-shaped folded structures are formed after the sub-airbag is deflated, as shown in FIG. Figure 7 End face shown.

[0043] When the airbag is in use, the air pressure control system monitors the air pressure of each air chamber at any time. If a leak occurs, it can be handled separately according to different situations. If a sub-airbag leaks, the inner membrane of the sub-airbag is under the pressure of the main air chamber and will cling to the outer wall of the airbag body. At this time, the sub-airbag can be abandoned and the pressure of the main air chamber can be filled to the working pressure. In this case, the volume of the airbag does not change and the buoyancy does not decrease; if the main airbag leaks, the twin airbags can be filled to the working pressure. At this time, the buoyancy of the airbag decreases by about 30%; in more serious cases, when only one sub-airbag is left working, the control system abandons the other air chambers and fills the sub-airbag to the working pressure. At this time, the buoyancy of the airbag remains about 35%, and the airbag is still in the shape of a long rod with less navigation resistance.

[0044] As one of other preferred implementation structures, Figure 1-3 As shown, a handle 11 is provided on the airbag body to facilitate the transportation of the airbag.

[0045] As one of other preferred implementation structures, Figure 1-3 As shown, a safety rope fixing member 20, an oblique hinge connector 21, and a large hinge connector 22 are provided on the airbag body. The safety rope fixing member 20 is used to connect the airbag body to the water equipment through the safety rope. The oblique hinge connector 21 and the large hinge connector 22 are used to hinge the airbag body to the water equipment, so as to facilitate the operations such as unfolding, folding, and storing of the airbag.

[0046] As one of other preferred implementation structures, Figure 2 , 3As shown, a ventral fin device is installed directly below the airbag of the present invention. Specifically, the ventral fin 5 is installed on the airbag body through the ventral fin fixing member 7. Preferably, the ventral fin 5 has a sheet structure adapted to the airbag, and a mounting shaft fixing structure is respectively provided along its two longitudinal side edges, and a plurality of hook holes are provided on the two side edges, and the ventral fin fixing member 7 has a hook structure that matches the hook hole. A plurality of airbag ventral fin hooks are pre-bonded at designated positions at both ends of the airbag. When using water equipment, when the airbag is almost fully inflated, the mounting shafts on both sides of the airbag ventral fin are respectively hung on the hooks, and then the airbag is filled. The ventral fin device can achieve good guidance of the water equipment, improve the impact resistance of the water equipment, and at the same time protect the airbag.

[0047] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0048] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

[0049] The present invention is not limited to the above description of the embodiments. Any improvements and modifications made by those skilled in the art based on the contents disclosed by the present invention without creative work should be within the protection scope of the present invention.

Claims

1. A method for inflating and deflating a foldable airbag structure, characterized in that: Mainly includes main airbag, airbag plug and sub-airbag; The main airbag and the two airbag plugs constitute the airbag body; There are at least two sub-airbags, which are symmetrically fixed inside the airbag body, dividing the airbag body into at least three independent air chambers; When deflating, the main airbag is deflated first, and then the sub-airbag; in the process of deflation of the sub-airbag, the middle parts on both sides of the main airbag are arranged so that the main airbag always remains folded and bent inward along the center seams on both sides, and finally two opposing "Σ" shaped folding structures are formed after the sub-airbag is deflated.

2. The method for inflating and deflating a foldable airbag structure according to claim 1, characterized in that: The sub-airbag and the main airbag share a portion of the airbag body.

3. The method for inflating and deflating a foldable airbag structure according to claim 1, characterized in that: The two sub-airbags are of the same size.

4. The method for inflating and deflating a foldable airbag structure according to claim 1, characterized in that: The three independent air chambers are respectively provided with independent air intake pipes and air nozzles.

5. A method for inflating and deflating a foldable airbag structure according to any one of claims 1 to 4, characterized in that: A double-head air nozzle assembly is installed on the main airbag body.

6. The method for inflating and deflating a foldable airbag structure according to claim 5, characterized in that: The double-ended air nozzle assembly comprises a double-ended air nozzle, an upper air nozzle sealing cover, and a lower air nozzle sealing cover.

7. The method for inflating and deflating a foldable airbag structure according to claim 6, characterized in that: The sub-airbag and / or the main airbag each have an interface inside the airbag body that is connected to the inside of the double-ended air nozzle through a pipeline.

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