Inflation device

Abstract

An inflation device, comprising an inflation bag (1) and an inflation pipe (2) used for being mounted on a product to be inflated, wherein one end of the inflation bag (1) is open, and the other end of the inflation bag is provided with a connecting nozzle (3) used for being connected to the inflation pipe (2); a non-return mechanism (4) is provided in the inflation pipe (2). The inflation device does not need a power supply, and manual air blowing is not needed, and thus, the inflation efficiency is high, and the inflation device is suitable for outdoor use.

Description

An inflatable device Technical Field

[0001] The present invention relates to the technical field of inflatable equipment, and more particularly, to an inflatable device. Background Art

[0002] In daily life, there are many products that need to be inflated, such as swimming rings, lifebuoys, water floating beds, inflatable mattresses, etc. Although these inflatable products are very convenient to use, the inflation steps before use often bother users.

[0003] Existing inflation methods are basically three: blowing directly with the user's mouth, using an electric air pump (or air compressor), and using a manual air pump. Blowing directly with the user's mouth is not only inefficient but also very tiring. Electric air pumps require a power source when in use. Battery-based power supplies run the risk of battery exhaustion, while externally powered electric air pumps require the user to find a stable power source, which is inconvenient for outdoor use. Many inflatable products need to be used outdoors, so existing inflation methods are difficult to meet the needs of outdoor use. Although manual air pumps do not need to consider power issues, they are usually time-consuming and labor-intensive to use.

[0004] There is a hand-cranked manual air pump, which includes a cylinder and a push rod arranged inside the cylinder, one end of the push rod is connected to a piston, and the cylinder is provided with a one-way air inlet valve and a one-way air outlet valve, and the other end of the push rod is connected to a rack frame, and two rows of racks are provided on both sides of the inner wall of the rack frame, and a semicircular gear is provided between the two rows of racks, and the semicircular gear can only engage with the rack on one side; a gear box is provided on the outer sleeve of the rack frame, and the semicircular gear is connected to the gear box through a rotating shaft.

[0005] The above-mentioned existing air pump still has the disadvantage that the inflation process is time-consuming and labor-intensive.

[0006] Summary of the Invention

[0007] The present invention provides an inflation device to overcome the above-mentioned disadvantages of the inflation process of the inflation pump in the prior art, which is time-consuming and labor-intensive.

[0008] In order to solve the above technical problems, the technical solution adopted by the present invention is: an inflation device, including an inflation bag and an inflation tube for installation on the product to be inflated; one end of the inflation bag is open, and the other end is provided with a connecting nozzle for docking with the inflation tube; a non-return mechanism is provided in the inflation tube.

[0009] When in use, connect the connecting nozzle to the inflation tube, then hold the open end of the inflation bag and shake the inflation bag to fill the inflation bag with air, then seal the open end of the inflation bag to prevent air from overflowing from the open end of the inflation bag, and then squeeze the inflation bag along the direction from the open end to the connecting nozzle, so that the air in the inflation bag enters the product to be inflated through the inflation tube. Since the inflation tube has a non-return mechanism, the air filled into the product to be inflated will not escape from the inflation tube during the inflation process.

[0010] Furthermore, a clamping assembly is provided on the inflation tube and the connecting nozzle, and the connecting nozzle is clamped to the inflation tube through the clamping assembly.

[0011] Furthermore, the clamping assembly includes a flange and a clamping claw; the flange is provided on the outer side wall of the inflation tube; and the connecting nozzle is provided with a clamping claw for clamping on the flange.

[0012] Furthermore, the anti-return mechanism includes a separator and a sealing assembly; the separator is provided with an inflation port; the sealing assembly is provided on the separator; when no air flow is introduced into the inflation pipe, the sealing assembly is in a state of blocking the inflation port, and when air flow is introduced into the inflation pipe, the sealing assembly is out of the state of blocking the inflation port.

[0013] Furthermore, the sealing assembly includes a valve core, an elastic member and a spring; a through opening is opened on the separator; the valve core is passed through the through opening, the spring is arranged at the bottom of the valve core, one end of the elastic member is connected to the top of the valve core, and the other end is arranged on the separator; when the elastic member is not subjected to external force, the valve core keeps the spring in a state of sealing the through opening under the action of the elastic force of the elastic member.

[0014] Furthermore, the blocking assembly further includes a convex ring, which is arranged at the bottom of the separator, the through port and the inflation port are both located inside the convex ring, and the spring plate abuts against the convex ring.

[0015] Furthermore, the elastic member is a spring; the elastic member is sleeved on the valve core; a pressure plate is provided on the top of the valve core, and the cross-sectional area of ​​the pressure plate is larger than the cross-sectional area of ​​the valve core; one end of the elastic member abuts the pressure plate, and the other end abuts the separator.

[0016] Furthermore, the connecting nozzle includes an insertion portion and a limiting portion; the claw is arranged on the outer wall of the limiting portion; the limiting portion is located outside the insertion portion; when the connecting nozzle is connected to the inflation tube, the insertion portion extends into the inflation tube and the limiting portion abuts against the top of the inflation tube.

[0017] Furthermore, the inflation tube is connected to a plug for sealing the inflation tube; the inflation tube is also provided with a pressing piece, which is an elastic pressing piece, and the diameter of the pressing piece is larger than the diameter of the inflation tube.

[0018] Furthermore, a protective cover is provided below the spring piece, and the spring piece is located inside the protective cover; the protective cover is provided with a window.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. The air is collected through an open inflatable bag. You only need to hold the open part of the bag and wave and shake it to fill it with air. Then, squeeze the bag from the open part to the connecting nozzle to allow the air in the bag to enter the product to be inflated through the inflation tube. No power supply is required, nor does it require manual repeated pressing (or squeezing), and no manual blowing is required. The inflation efficiency is high, the inflation process is labor-saving, and it is suitable for outdoor use.

[0021] 2. The inflation port is sealed by an elastic member and a spring. When air is introduced into the inflation tube, the airflow pushes the spring apart, creating a gap between the spring and the inflation port. Air can then pass through the gap and into the product to be inflated through the inflation port, achieving the effect of inflating the inflatable product through the inflation tube without additional human intervention. When no air is introduced into the inflation tube, the elastic force of the elastic member drives the spring to seal the inflation port, thereby preventing gas in the inflatable product from escaping.

[0022] 3. When the inflatable product needs to be deflated, force is applied to the pressure piece to deform it so that the pressure piece can be inserted into the inflation tube until the pressure piece pushes the valve core and the spring is released from the state of blocking the opening. Then the force applied to the pressure piece is released. At this time, the pressure piece tries to restore its original state due to its own elastic force. The diameter of the pressure piece is larger than the inflation tube, so that the pressure piece will be stuck in the inflation tube and maintain the current deformation state, so that the opening remains open. At this time, the user can press or squeeze the inflatable product to allow the gas inside it to escape from the inflation tube. When deflated, the inflation tube can be kept open without the user's continuous intervention, which is convenient and labor-saving. The pressure piece is connected to the inflation tube, making it easy for the user to find and use it. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] FIG1 is a schematic diagram of the overall structure of an embodiment of an inflatable device of the present invention;

[0024] FIG2 is a schematic structural diagram of an inflatable bag and a connecting nozzle in an embodiment of an inflatable device of the present invention;

[0025] FIG3 is a schematic structural diagram of an inflation tube and a non-return mechanism in an embodiment of an inflation device of the present invention;

[0026] FIG4 is a schematic structural diagram of an inflation tube and a non-return mechanism from another perspective in an embodiment of an inflation device of the present invention;

[0027] FIG5 is a schematic diagram of the internal structure of an embodiment of an inflation device of the present invention.

[0028] In the accompanying drawings: 1. Inflatable bag; 2. Inflatable tube; 3. Connecting nozzle; 31. Insertion part; 32. Limiting part; 4. Anti-return mechanism; 41. Separator; 411. Through port; 412. Inflating port; 42. Sealing assembly; 421. Valve core; 422. Elastic member; 423. Spring piece; 424. Raised ring; 425. Pressure plate; 5. Flange; 6. Claw; 61. Connecting piece; 7. Plug; 8. Pressing member; 9. Protective cover; 91. Window. DETAILED DESCRIPTION

[0029] The drawings are for illustrative purposes only and should not be construed as limiting this patent. To better illustrate the embodiments, some components in the drawings may be omitted, enlarged, or reduced in size, and do not represent actual product dimensions. Those skilled in the art will understand that some well-known structures and their descriptions may be omitted from the drawings. The positional relationships depicted in the drawings are for illustrative purposes only and should not be construed as limiting this patent.

[0030] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", "long", "short", etc. indicating the orientation or position relationship, they are based on the orientation or position relationship shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as limiting this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0031] The technical solution of the present invention is further described in detail below through specific embodiments and in conjunction with the accompanying drawings:

[0032] Example 1

[0033] 1 to 5 , an embodiment 1 of an inflation device of the present invention is shown, comprising an inflation bag 1 and an inflation tube 2 for installation on a product to be inflated; one end of the inflation bag 1 is open, and the other end is provided with a connecting nozzle 3 for docking with the inflation tube 2; a non-return mechanism 4 is provided in the inflation tube 2.

[0034] Specifically, the inflatable bag 1 can be made of one of PVC, TPU, EVA, and ABS materials, with TPU being preferred in this embodiment. When filled with air, the inflatable bag 1 is cylindrical in shape, with a connecting nozzle 3 mounted at the bottom of the bag. The top of the bag is open, formed by a cross-section of the top of the bag. During use, the connecting nozzle 3 is connected to the inflation tube 2. The user then grasps the opening of the bag 1 and shakes it to fill it with air. The opening is then sealed. The user can directly grasp the opening with their hands, or use an elastic band, rope, or the like to prevent air from escaping from the opening. The bag is then squeezed from the opening to the connecting nozzle 3, allowing the air in the bag to enter the product to be inflated through the inflation tube 2. Because the inflation tube 2 has a check mechanism 4, the air in the product to be inflated does not escape from the inflation tube 2 during inflation.

[0035] In this embodiment, the inflation tube 2 and the connecting nozzle 3 are provided with a snap-fit ​​assembly, and the connecting nozzle 3 is snap-fitted to the inflation tube 2 via the snap-fit ​​assembly. The connecting nozzle 3 and the inflation tube 2 are connected by the snap-fit ​​assembly, so that the connecting nozzle 3 and the inflation tube 2 can maintain a relatively stable connection during the inflation process.

[0036] In this embodiment, the clamping assembly includes a flange 5 and a claw 6; the flange 5 is provided on the outer wall of the inflation tube 2; the connecting nozzle 3 is provided with a claw 6 for clamping onto the flange 5. The connecting nozzle 3 includes an insertion portion 31 and a stopper 32; the claw 6 is provided on the outer wall of the stopper 32; the stopper 32 is located outside the insertion portion 31. When the connecting nozzle 3 is connected to the inflation tube 2, the insertion portion 31 extends into the inflation tube 2 and the stopper 32 abuts the top of the inflation tube 2.

[0037] Specifically, the insertion portion 31 is composed of an annular sheet and a hollow cylinder. The limiting portion 32 is located on the outside of the cylindrical portion of the insertion portion 31. The limiting portion 32 is an annular boss. The limiting portion 32 is integrally formed with the insertion portion 31. The claw 6 is a square block. The claw 6 can be made of materials such as TPU, ABS, PVC, etc., and is preferably made of TPU in this embodiment. The bottom end of the square block protrudes toward the direction of the insertion portion 31, thereby forming the claw 6. There are multiple claws 6, and multiple claws 6 are arranged at the bottom of an annular connecting piece 61. Multiple claws 6 are arranged in a ring, and there is a gap between two adjacent claws 6. The inflatable bag 1 is sandwiched between the connecting piece 61 and the top of the insertion portion 31 and fixed by hot melting. The diameter of the flange 5 is the same as the diameter of the ring formed by the multiple claws 6, but slightly larger than the diameter of the ring formed by the protrusion at the bottom end of the claw 6. When the connecting nozzle 3 is engaged with the inflation tube 2, the insertion portion 31 extends into the inflation tube 2, and then force is applied to the connecting nozzle 3, causing the claw 6 to deform and expand, allowing the flange 5 to pass through the protrusion of the claw 6 until the limiting portion 32 abuts against the top of the inflation tube 2, indicating that the connecting nozzle 3 and the inflation tube 2 are properly docked. At this time, the force applied to the connecting nozzle 3 can be cancelled, and the claw 6 returns to its initial shape. At this time, the protrusion at the top of the claw 6 will move to the bottom of the flange 5. At this time, the claw 6 is engaged with the flange 5, thereby achieving the engagement between the connecting nozzle 3 and the inflation tube 2. The arrangement of the insertion portion 31 extending into the inflation tube 2 and the abutment between the limiting portion 32 and the inflation tube 2 are both intended to reduce the gap when the connecting nozzle 3 and the inflation tube 2 are engaged, thereby reducing the escape loss when the air flow flows from the inflatable bag 1 to the inflation tube 2.

[0038] In this embodiment, the anti-return mechanism 4 includes a separator 41 and a sealing assembly 42; the separator 41 is provided with an inflation port 412; the sealing assembly 42 is provided on the separator 41; when no air flow is introduced into the inflation tube 2, the sealing assembly 42 is in a state of blocking the inflation port 412, and when air flow is introduced into the inflation tube 2, the sealing assembly 42 is out of the state of blocking the inflation port 412.

[0039] Separator 41 is coaxially positioned within inflation tube 2, integrally formed with the latter. Four arcuate inlets 412 are defined on separator 41, with spaces between adjacent inlets 412 ensuring the strength of separator 41. Sealing assembly 42 only needs to block inlet 412 to prevent gas from escaping, making it easier than blocking the entire inflation tube 2. When air is introduced into inflation tube 2, sealing assembly 42 disengages from blocking inlet 412, eliminating the need for extensive user manipulation and facilitating ease of use.

[0040] In this embodiment, the blocking assembly 42 includes a valve core 421, an elastic member 422 and a spring 423; a through opening 411 is opened on the separator 41; the valve core 421 is inserted into the through opening 411, and the spring 423 is arranged at the bottom of the valve core 421, one end of the elastic member 422 is connected to the top of the valve core 421, and the other end is arranged on the separator 41; when the elastic member 422 is not subjected to external force, the valve core 421 keeps the spring 423 in a state of blocking the through opening 411 under the elastic force of the elastic member 422.

[0041] Specifically, the through-port 411 is coaxially provided on the separator 41. The through-port 411 is circular, and the valve core 421 is cylindrical. The valve core 421 is movably inserted into the through-port 411. The inflation port 412 is arranged around the through-port 411, and the four inflation ports 412 are arranged in a ring. The spring 423 is circular and coaxially provided at the bottom of the valve core 421. The spring 423 is made of rubber. A rod is coaxially provided at the top of the spring 423, and the rod is coaxially fixedly inserted into the valve core 421. The axial projections of the four inflation ports 412 and the through-port 411 are all covered by the spring 423, ensuring that the spring 423 can cover the inflation port 412 and the through-port 411.

[0042] In this embodiment, the blocking assembly 42 further includes a convex ring 424 . The convex ring 424 is disposed at the bottom of the separator 41 . The through opening 411 and the inflation opening 412 are both located inside the convex ring 424 . The elastic piece 423 abuts against the convex ring 424 .

[0043] Specifically, the raised ring 424 is coaxially disposed at the bottom of the separator 41, and the raised ring 424 is coaxial with the separator 41. When the spring piece 423 abuts the raised ring 424, the interior of the raised ring 424 is sealed, thereby blocking the opening 411 and the inflation port 412. Because the raised ring 424 is a raised structure, the contact between the spring piece 423 and the raised ring 424 is closer to line contact than if the spring piece 423 were directly attached to the separator 41, resulting in better sealing performance. When air is introduced into the inflation tube 2, the airflow will push open the spring piece 423, so that a gap appears between the spring piece 423 and the convex ring 424. At this time, air can pass through the gap and enter the product to be inflated through the inflation port 412, thereby achieving the effect of inflating the product to be inflated through the inflation tube 2 without additional human intervention; when no air is introduced into the inflation tube 2, the valve core 421 drives the spring piece 423 to block the inflation port 412 under the action of the elastic force of the elastic member 422, thereby preventing the gas in the product to be inflated from escaping.

[0044] In this embodiment, the elastic member 422 is a spring; the elastic member 422 is sleeved on the valve core 421; a pressure plate 425 is provided on the top of the valve core 421, and the cross-sectional area of ​​the pressure plate 425 is larger than the cross-sectional area of ​​the valve core 421; one end of the elastic member 422 abuts against the pressure plate 425, and the other end abuts against the separator 41.

[0045] Specifically, a cylinder is provided at the bottom of the pressure plate 425, which is inserted into the top of the valve core 421, so that the pressure plate 425 is connected to the valve core 421. The top of the separator 41 has an annular boss at a position surrounding the through-port 411, and the bottom end of the elastic member 422 abuts against the boss. The elastic member 422 is in a compressed state under normal conditions, so that when the valve core 421 is not subjected to external force, the valve core 421 has a tendency to move upward under the action of the elastic member 422, so that the spring 423 can press against the convex ring 424, ensuring the seal between the spring 423 and the convex ring 424. When deflation is required, the user only needs to insert a finger or other object into the inflation tube 2 until it presses against the pressure plate 425, and overcome the elastic force of the elastic member 422, so that the valve core 421 moves downward until the spring 423 is separated from the convex ring 424, allowing the gas in the inflatable product to escape through the inflation port 412. The setting of the pressing plate 425 not only provides a contacting position for the top end of the elastic member 422 , but also facilitates pressing by the user.

[0046] Example 2

[0047] 3 to 5 , an embodiment 2 of an inflation device of the present invention is shown. The difference between this embodiment and the embodiment 1 is that a plug 7 for sealing the inflation tube 2 is connected to the inflation tube 2; a pressure piece 8 is also provided on the inflation tube 2, and the pressure piece 8 is an elastic pressure piece, and the diameter of the pressure piece 8 is larger than the diameter of the inflation tube 2.

[0048] The plug 7 is cylindrical, with a diameter slightly larger than the inflation tube 2. Both the plug 7 and the pressure piece 8 are made of rubber, allowing the plug 7 to deform and insert into the inflation tube 2, sealing the inflation tube 2 with the plug 7, thereby preventing the inflatable product from leaking during use. The pressure piece 8 is pliers-shaped. In this embodiment, the pressure piece 8 and the plug 7 are both mounted on a rubber elastic strip. In other embodiments, the pressure piece 8 and the plug 7 can also be mounted on different elastic strips. When the inflatable product needs to be deflated, force is applied to the pressure piece 8 to deform it so that the pressure piece 8 can be inserted into the inflation tube 2 until the pressure piece 8 pushes the valve core 421 and the spring 423 is out of the state of blocking the opening 411. Then the force applied to the pressure piece 8 is cancelled. At this time, the pressure piece 8 tries to restore its initial state due to its own elastic force, and the diameter of the pressure piece 8 is larger than the inflation tube 2, so that the pressure piece 8 will be stuck in the inflation tube 2 and maintain the current deformation state, so that the opening 411 is always maintained in an open state. At this time, the user can press or squeeze the inflatable product to allow the gas inside it to escape from the inflation tube 2; when deflated, the inflation tube 2 can be kept in an open state without the user's continuous intervention operation, which is convenient and labor-saving, and the pressure piece 8 is connected to the inflation tube 2, which is easy for the user to find and use.

[0049] Example 3

[0050] Referring to Figures 3 and 5, Example 3 of an inflation device of the present invention is shown. The difference between this embodiment and Example 2 is that a protective cover 9 is provided below the shrapnel 423, and the shrapnel 423 is located inside the protective cover 9; the protective cover 9 is provided with a window 91. The protective cover 9 is hemispherical, and the protective cover 9 is provided below the separator 41. The window 91 on the protective cover 9 is to allow gas to pass through without affecting the inflation and deflation. By providing the protective cover 9, it is possible to prevent the shrapnel 423 from being squeezed and deformed by external forces, ensuring that the shrapnel 423 always maintains its own shape, thereby ensuring that the sealing assembly 42 can work effectively. The top of the protective cover 9 is an annular plate, and an annular plate is also provided on the outer wall of the inflation tube 2. The inflatable product is sandwiched between the annular plate at the top of the protective cover 9 and the annular plate of the inflation tube 2, and is fixed by hot melting.

[0051] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Those skilled in the art will appreciate that other variations or modifications can be made based on the above description. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. An inflating device, characterized in that, It includes an inflatable bag (1) and an inflation tube (2) for installation on a product to be inflated; one end of the inflatable bag (1) is open, and the other end is provided with a connection nozzle (3) for docking with the inflation tube (2); a check mechanism (4) is provided inside the inflation tube (2).

2. The inflating device according to claim 1, wherein, A clamping assembly is provided on the inflation tube (2) and the connection nozzle (3), and the connection nozzle (3) is clamped to the inflation tube (2) through the clamping assembly.

3. The inflating device according to claim 2, characterized in that, The clamping assembly includes a flange (5) and a claw (6); the flange (5) is provided on the outer side wall of the inflation tube (2); the claw (6) is provided on the connection nozzle (3), and the claw (6) is used to be clamped on the flange (5).

4. The inflating device according to claim 1, characterized in that The check mechanism (4) includes a partition piece (41) and a blocking assembly (42); an inflation port (412) is provided on the partition piece (41); the blocking assembly (42) is provided on the partition piece (41); when no air flow is introduced into the inflation tube (2), the blocking assembly (42) is in a state of blocking the inflation port (412), and when air flow is introduced into the inflation tube (2), the blocking assembly (42) is in a state of disengaging from blocking the inflation port (412).

5. The inflating device according to claim 4, wherein The blocking assembly (42) includes a valve core (421), an elastic member (422) and an elastic sheet (423); a through hole (411) is formed on the partition piece (41); the valve core (421) passes through the through hole (411), the elastic sheet (423) is provided at the bottom of the valve core (421), one end of the elastic member (422) is connected to the top of the valve core (421), and the other end is provided on the partition piece (41); when the elastic member (422) is not subjected to an external force, the valve core (421) keeps the elastic sheet (423) in a state of blocking the through hole (411) under the elastic force of the elastic member (422).

6. The inflating device according to claim 5, wherein, The blocking assembly (42) further includes a convex ring (424), the convex ring (424) is provided at the bottom of the partition piece (41), both the through hole (411) and the inflation port (412) are located inside the convex ring (424), and the elastic sheet (423) abuts against the convex ring (424).

7. The inflating device according to claim 5, characterized in that, The elastic member (422) is a spring; the elastic member (422) is sleeved on the valve core (421); a pressing plate (425) is provided at the top of the valve core (421), and the cross-sectional area of the pressing plate (425) is larger than the cross-sectional area of the valve core (421); one end of the elastic member (422) abuts against the pressing plate (425), and the other end abuts against the partition piece (41).

8. The inflating device according to claim 3, characterized in that, The connection nozzle (3) includes an insertion part (31) and a limiting part (32); the claw (6) is provided on the outer side wall of the limiting part (32); the limiting part (32) is located outside the insertion part (31); when the connection nozzle (3) is connected to the inflation tube (2), the insertion part (31) extends into the inflation tube (2) and the limiting part (32) abuts against the top of the inflation tube (2).

9. The inflating device according to claim 5, wherein A plug (7) for blocking the inflation tube (2) is connected to the inflation tube (2); an abutting member (8) is further provided on the inflation tube (2), the abutting member (8) is an elastic abutting member, and the diameter of the abutting member (8) is larger than the diameter of the inflation tube (2).

10. The inflating device according to claim 5, wherein A protective cover (9) is provided below the elastic piece (423), and the elastic piece (423) is located inside the protective cover (9); the protective cover (9) is provided with a window (91).

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