An inflation valve and an inflatable article

Abstract

The utility model relates to an inflation valve and inflation article, and the inflation valve comprises a valve seat, a valve core and an inner cover, the valve core comprises rotation parts, moving parts, guide seats and sealing sheets which are sequentially arranged from an air inlet end to an air outlet end, the inflation valve has three states of one-way air inlet, one-way air outlet and two-way ventilation, the valve core structure design can realize the quick switching of the three states, and fundamentally solves the defects of single function and state switching by disassembling and replacing parts of the existing inflation valve.

Description

Technical Field

[0001] This utility model relates to the field of inflatable products technology, and in particular to an inflatable valve and an inflatable product. Background Technology

[0002] Inflatable valves are core components of inflatable products such as air mattresses, inflatable tents, inflatable sofas, and inflatable toys. Their performance directly affects inflation efficiency, ease of deflation, and air pressure stability. As the application scenarios of inflatable products expand to diverse fields such as homes, outdoors, and entertainment, users' needs for valve functions have evolved from simple inflation sealing to multi-scenario adaptability. However, existing technologies have some shortcomings.

[0003] Currently, most inflation valves are single-function. One-way inflation valves can only inflate and seal; venting requires disassembling parts or pressing to release air, which is cumbersome and makes it difficult to control the venting speed. For example, when storing an inflatable bed, the valve core needs to be pulled out to vent air, which can easily deform the product and leave residual gas that is difficult to remove. One-way venting valves are convenient for venting, but the venting channel must be tightly sealed during inflation, and even a slight oversight can lead to leakage, especially when inflating manually, which significantly reduces efficiency. Fixed two-way valves can allow air to pass in both directions, but they lack one-way sealing capability. They require continuous pressurization during inflation, and are prone to leakage after stopping, and the air pressure cannot be precisely adjusted. At the same time, the current valve status switching relies on disassembling and replacing parts or complex operations, which are troublesome and prone to malfunctions, making it difficult to meet the needs of inflatable products in diverse scenarios. Utility Model Content

[0004] In view of the shortcomings of the existing technology, this utility model aims to solve the technical problems of existing inflation valves having a single state that cannot be switched, and state switching requiring the replacement of parts or complex operations.

[0005] To solve the above technical problems, this utility model provides an inflation valve, comprising: The valve seat has a through mounting cavity in its middle; The valve core is disposed in the mounting cavity; An inner cover is fixedly installed at the air outlet end of the valve seat. The inner cover includes an air outlet plate covering the mounting cavity, and the air outlet plate is provided with a plurality of first air holes. The valve core comprises the following components arranged sequentially from the air inlet end to the air outlet end: A rotating component is movably disposed in the mounting cavity and can rotate about the axis of the mounting cavity; the rotating component is provided with an axially extending transmission part. The movable component is in transmission cooperation with the transmission part, and the rotating component can drive the movable component to move axially along the mounting cavity; A guide seat is fixedly installed in the mounting cavity. The guide seat includes an air inlet plate covering the mounting cavity. The air inlet plate is provided with a guide hole and a plurality of second air holes. The moving part passes through the guide hole. A sealing sheet is fixedly connected to the end of the movable component, and the movement stroke of the sealing sheet covers the following states: closing the first air hole, simultaneously opening the first air hole and the second air hole, and closing the second air hole.

[0006] This utility model's inflation valve has three states: one-way air inlet, one-way air outlet, and two-way air passage. Through its valve core structure design, it can quickly switch between these three states, fundamentally solving the shortcomings of existing inflation valves that are single-function and require component replacement to switch states. The rotating and moving parts of the valve core work together to drive the sealing plate to move precisely axially. The guide hole of the guide seat ensures stable movement of the moving part. The overall structure is compact and requires no additional parts, improving inflation efficiency and ease of deflation while ensuring air pressure stability, significantly optimizing the user experience.

[0007] Furthermore, the inner wall of the mounting cavity is provided with annular ribs, and the rotating component includes a rotating ring. The side wall of the rotating ring is provided with a circumferential groove, and the annular ribs are inserted into the circumferential grooves to rotatably connect the rotating component with the valve seat. This structure allows the rotating component to rotate smoothly around the axis of the mounting cavity while effectively limiting the displacement of the rotating component along the axial direction of the mounting cavity, avoiding transmission failure or sealing misalignment caused by axial movement of the rotating component during inflation and deflation.

[0008] Furthermore, the rotating component includes a lever that extends radially along the rotating component. Both ends of the lever are connected to the rotating ring, and the transmission part is connected to the middle of the lever. By providing a lever extending radially along the rotating component, the rotating ring and the transmission part are stably connected. The lever design facilitates operation of the rotating component while preventing eccentric rotation of the transmission part due to uneven force distribution.

[0009] Furthermore, the rotating ring is provided with a positioning plate, and the positioning plate is provided with a positioning protrusion. The position of the positioning plate is aligned with one end of the lever. The inner wall of the mounting cavity is provided with a first positioning groove, a second positioning groove, and a third positioning groove. When the positioning protrusion enters the first positioning groove, the sealing plate closes the first air hole. When the positioning protrusion enters the second positioning groove, the sealing plate closes the second air hole. When the positioning protrusion enters the third positioning groove, the first air hole and the second air hole are simultaneously open. By cooperating with the positioning protrusion on the positioning plate and the positioning groove on the inner wall of the mounting cavity, precise locking of three working states is achieved. When the positioning protrusion enters the corresponding positioning groove, the sealing plate can stably maintain the corresponding state, avoiding the problem of state deviation caused by vibration or accidental touch. Users can intuitively judge the current state through the locking feel of the positioning protrusion and the positioning groove, improving the accuracy and convenience of operation, especially suitable for outdoor camping, water entertainment, and other scenarios with poor visibility or limited operating space.

[0010] Furthermore, the rotating ring is provided with a baffle, and the positioning plate is aligned with the end of the lever furthest from the positioning plate. The inner wall of the mounting cavity is provided with a protruding stop, which is aligned with the third positioning groove. When the baffle moves to abut against both sides of the stop, the positioning protrusions move to the first and second positioning grooves respectively. The cooperation between the baffle on the rotating ring and the stop on the inner wall of the mounting cavity limits the maximum rotation range of the rotating component. When the baffle abuts against both sides of the stop, the positioning protrusions stop precisely in the first and second positioning grooves, preventing damage to the transmission structure of the transmission and moving parts due to excessive rotation, or sealing failure caused by the sealing plate exceeding its travel range. Simultaneously, the alignment of the stop with the third positioning groove helps the user quickly find the intermediate state of dual-hole conduction, further improving the convenience of state switching.

[0011] Furthermore, the surface of the lever is provided with an indicator arrow, which points to the end corresponding to the positioning piece. The surface of the valve seat is provided with three indicator points, which are respectively aligned with the first positioning groove, the second positioning groove, and the third positioning groove. By providing an indicator arrow on the surface of the lever, in conjunction with the indicator points on the surface of the valve seat, a visual status indicator is constructed. Users can intuitively confirm the valve's status simply by observing the alignment relationship between the arrow and the indicator points.

[0012] Furthermore, the transmission part is cylindrical, and the moving part is cylindrical. The moving part is sleeved on the transmission part and screwed to it. The transmission is achieved using a spiral rib and spiral groove meshing structure. This structure has excellent stability and displacement controllability, ensuring that when the rotating part rotates, it can drive the moving part to move uniformly and precisely along the axial direction of the mounting cavity.

[0013] Furthermore, the end of the movable component is provided with a connecting hole, and the sealing sheet is connected to the movable component by inserting a connecting pin into the connecting hole. The air outlet plate is provided with a clearance hole that matches the connecting pin. The connecting pin can ensure a firm connection of the sealing sheet, preventing the sealing sheet from falling off under long-term movement or air pressure impact, and ensuring sealing reliability. At the same time, this connection method facilitates the disassembly and replacement of the sealing sheet, reducing later maintenance costs.

[0014] Furthermore, the outer surface of the movable component is provided with several guide ribs, the air intake plate is provided with a raised guide portion, the guide hole is a through hole penetrating the guide portion, and the wall of the guide hole is provided with a guide groove that matches the guide ribs. By cooperating with the guide ribs on the outer surface of the movable component and the guide groove on the wall of the guide hole, the rotation of the movable component around the axis of the mounting cavity can be effectively restricted, ensuring that the movable component moves only along the axial direction, avoiding the displacement of the sealing sheet caused by the rotation of the movable component, and improving the sealing accuracy of the sealing sheet.

[0015] Furthermore, the valve seat includes an extended section, a limiting ring, and an inner section connected in sequence. The diameter of the limiting ring is larger than that of the extended section and the inner section. The inner section is threadedly connected to the inner cover, and the extended section is threadedly connected to an outer cover. A sealing groove is provided on the surface of the outer cover facing the valve seat, and a sealing ring is provided in the sealing groove. The limiting ring can limit the installation depth of the valve seat on the inflatable device; the threaded connection between the inner section and the inner cover, and the threaded connection between the extended section and the outer cover, facilitates the disassembly and assembly of various valve components, and is beneficial for later maintenance and repair. The sealing ring in the sealing groove of the outer cover can fill the gap between the outer cover and the extended section, preventing gas leakage from the connection between the outer cover and the valve seat, and improving the overall sealing performance of the valve.

[0016] This utility model also provides an inflatable product, including the aforementioned inflatable valve.

[0017] This invention applies an inflation valve with three switching modes to inflatable products, allowing them to flexibly switch between one-way inflation, one-way deflation, and two-way ventilation modes according to usage needs. This adapts to diverse scenarios such as daily home use, outdoor camping, and water recreation, overcoming the limitations of existing inflatable products due to their single-function valves. Furthermore, the valve's stable structure ensures stable air pressure and safety, reducing the likelihood of inflatable products becoming unusable due to valve malfunction and enhancing their overall competitiveness.

[0018] In summary, the present invention has the following advantages over the prior art: (1) Convenient and efficient function switching: This utility model drives the sealing plate to switch between three states: one-way air intake, two-way air passage, and one-way air outlet through the transmission cooperation of the rotating part and the moving part. No parts need to be replaced. The operation can be completed by simply rotating the lever. This completely solves the problem of the existing valve having a single function and requiring complex operation for switching, and is suitable for the use needs of inflatable products in multiple scenarios.

[0019] (2) The operation is intuitive and easy to judge: the engagement of the positioning protrusion and the positioning groove, and the visual identification of the indicator arrow and the indicator point, provide dual assistance to help users quickly confirm the valve status and avoid operational errors. It is especially suitable for outdoor light-poor, limited operating space or novice use scenarios, which greatly reduces the operating threshold.

[0020] (3) Stable and durable structure: the ring rib restricts the axial movement of the rotating parts, the guide rib ensures the unidirectional movement of the moving parts, the baffle and the block prevent excessive rotation, and the multiple structures work together to avoid transmission failure and sealing deviation, reduce wear during long-term use, extend the service life of the valve, and ensure stable function.

[0021] (4) Reliable sealing and stable air pressure: The self-locking property of the screw drive, the sealing plate fixed by the connecting nail, and the gap filling of the outer cover sealing ring form multiple sealing protections to prevent gas leakage and air pressure drop, solve the problems of poor sealing and unstable air pressure of existing valves, and ensure long-term pressure maintenance of inflatable products.

[0022] (5) Adaptability and wide application: The compact structure can be adapted to various inflatable products such as air beds, tents, and inflatable toys without the need for specific modifications. It can improve the scene adaptability and safety of inflatable products and enhance product competitiveness. Attached Figure Description

[0023] Figure 1 This is an exploded view of the gas-filling valve of this utility model.

[0024] Figure 2 This is a cross-sectional view of the air-filling valve of this utility model.

[0025] Figure 3 This is a cross-sectional view of the valve seat of the inflatable valve of this utility model.

[0026] Figure 4 This is a bottom view of the valve seat of the inflatable valve of this utility model.

[0027] Figure 5 This is a structural diagram of the rotating component of the air-filled valve of this utility model.

[0028] Figure 6 This is a structural diagram of the moving part of the air-filling valve of this utility model.

[0029] Figure 7 This is a structural diagram of the guide seat of the air-filled valve of this utility model.

[0030] Figure 8 This is a structural diagram of the inner cover of the inflatable valve of this utility model.

[0031] Explanation of reference numerals in the attached figures: 1-Valve seat, 11-Mounting cavity, 111-Annular rib, 112-First positioning groove, 113-Second positioning groove, 114-Third positioning groove, 115-Stop block, 12-Extended section, 13-Limiting ring, 14-Inner section, 2-Rotating component, 21-Rotating ring, 22-Circumferential groove, 23-Lever, 24-Positioning piece, 25-Positioning protrusion, 26-Stop piece, 27-Indicator arrow, 28-Transmission part, 29-Helical rib, 3-Moving component, 31-Helical groove, 32-Connecting hole, 33-Guide rib, 4-Guide seat, 41-Inlet plate, 42-Second air hole, 43-Guide part, 44-Guide hole, 45-Guide groove, 5-Sealing piece, 51-Connecting pin, 6-Inner cover, 61-Outlet plate, 62-First air hole, 63-Relief hole, 7-Outer cover, 71-Sealing ring. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0033] It should be noted that similar symbols and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0034] In the description of this utility model, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0035] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "setting," "connection," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0036] A specific embodiment of this utility model provides an inflation valve suitable for various inflatable products such as air mattresses, inflatable tents, and inflatable toys. Combined with... Figures 1 to 8 As shown, the inflation valve includes a valve seat 1, a valve core, an inner cover 6, and an outer cover 7. The valve core includes a rotating component 2, a moving component 3, a guide seat 4, and a sealing plate 5. Through the coordinated structure of the valve seat 1, valve core, and inner cover 6, it achieves convenient switching between three states: "one-way air intake," "two-way air passage," and "one-way air exhaust." In this embodiment, the valve seat 1, rotating component 2, moving component 3, guide seat 4, and inner cover 6 of the inflation valve are all made of plastic and are integrally injection molded, balancing lightweight and structural stability to avoid deformation over long-term use. The sealing plate 5 is made of rubber to ensure the durability of the air pressure seal. After assembly, the overall structure is compact and can be adapted to the standard mounting holes of most inflatable products, requiring no additional modifications for use, thus demonstrating strong versatility.

[0037] Combination Figure 2 and Figure 3 As shown, in this embodiment, the outer side of the valve seat 1 is provided with an extension section 12, a limiting ring 13 and an inner connection section 14 in sequence along the axial direction. The outer wall of the extension section 12 is provided with external threads to connect to the outer cover 7. The diameter of the limiting ring 13 is larger than that of the extension section 12 and the inner connection section 14. During assembly, it abuts against the inner wall of the inflatable product to limit the installation depth. The outer wall of the inner connection section 14 is provided with external threads to engage with the inner wall of the inner cover 6, so as to realize the detachable fixation of the inner cover 6.

[0038] The valve seat 1 has an axially extending mounting cavity 11 in its center, which provides assembly space for the valve core. The upper part of the inner wall of the mounting cavity 11 has an annular rib 111, which is a continuous circumferential protrusion structure used to cooperate with the circumferential groove 22 of the rotating component 2, realizing the rotational connection between the rotating component 2 and the valve seat 1 and restricting its axial movement. The middle part of the inner wall of the mounting cavity 11 has a first positioning groove 112, a second positioning groove 113, and a third positioning groove 114, which are circumferentially distributed. The first positioning groove 112 and the second positioning groove 113 are positioned close to each other, and the included angles between the first positioning groove 112, the second positioning groove 113, and the third positioning groove 114 are equal. The positioning grooves are used to adapt to the positioning protrusions 25 of the rotating component 2 to correspond to three working states. The inner wall of the mounting cavity 11 is also provided with a protruding stop 115. The stop 115 is positioned above the third positioning groove 114 and aligned with the third positioning groove 114, and is used to cooperate with the baffle 26 of the rotating component 2 to limit the rotation range.

[0039] Combination Figure 1 and Figure 2 As shown, the valve core includes a rotating component 2, a moving component 3, a guide seat 4, and a sealing plate 5 arranged sequentially from the air inlet end to the air outlet end of the mounting cavity 11. The rotating component 2 is movably disposed in the mounting cavity 11 and can rotate around the axis of the mounting cavity 11; the moving component 3 is driven by the rotating component 2, and the rotating component 2 can drive the moving component 3 to move axially along the mounting cavity 11; the guide seat 4 is fixedly disposed in the mounting cavity 11 to limit the movement direction of the moving component 3; the sealing plate 5 is fixedly connected to the lower end of the moving component 3, and the state of the inflation valve can be switched by changing the position of the sealing plate 5.

[0040] Combination Figure 5As shown, in this embodiment, the rotating component 2 includes a rotating ring 21, a lever 23, a positioning plate 24, a baffle 26, and a transmission part 28. The rotating ring 21 is annular, with a continuous circumferential groove 22 on its side wall. During assembly, the annular rib 111 of the valve seat 1 is embedded in the circumferential groove 22, allowing the rotating ring 21 to rotate flexibly around the axis of the mounting cavity 11. The lever 23 extends radially along the rotating ring 21, with both ends fixed to the inner wall of the rotating ring 21. The positioning plate 24 and the baffle 26 are connected to the lower part of the rotating ring 21 and are respectively positioned aligned with the two ends of the lever 23. The positioning plate 24 is elastic, with a hemispherical positioning protrusion 25 at its free end, which can elastically engage with the positioning groove of the valve seat 1, indicating the engagement status. The baffle 26 is a block structure, with a length adapted to the stop block 115. When it rotates to contact the stop block 115, it forms interference, preventing the rotating component 2 from rotating excessively. The transmission part 28 is cylindrical and extends downward from the middle of the lever 23 along the axis of the mounting cavity 11. The outer wall is provided with continuous spiral ribs 29 for cooperating with the moving part 3 for transmission.

[0041] In some preferred embodiments, the surface of the valve seat 1 is provided with three indicator points (not shown in the figure) for "inlet", "exhaust", and "bidirectional", which are aligned with three positioning grooves respectively. The upper surface of the lever 23 is provided with an indicator arrow 27, pointing to the end corresponding to the positioning piece 24. The indicator arrow 27, together with the three indicator points, enables visual identification of the status. By observing the alignment relationship between the indicator arrow 27 and the indicator points, the user can intuitively confirm the state of the valve.

[0042] Combination Figure 6 As shown, in this embodiment, the movable member 3 is cylindrical, with a spiral groove 31 on its inner wall that matches the spiral rib 29 of the transmission part 28. It is sleeved on the outside of the transmission part 28, and converts the rotational force of the rotating member 2 into axial movement through spiral engagement. Furthermore, four guide ribs 33 are evenly distributed along the axial direction on the outer wall of the movable member 3. The guide ribs 33 slide with the guide groove 45 of the guide seat 4 to restrict circumferential rotation.

[0043] A connecting hole 32 is provided at the axial position of the lower end face of the movable part 3. The connecting hole 32 is used to insert the connecting pin 51 of the sealing sheet 5, so that the two can be detached and fixed. The sealing sheet 5 is a circular piece with a diameter slightly smaller than that of the mounting cavity. A small hole is provided in the center for the connecting pin 51 to pass through. The connecting pin 51 is interference-fitted with the connecting hole 32 of the movable part 3 to ensure that the sealing sheet 5 can move synchronously with the movable part 3 and tightly cover the corresponding air hole.

[0044] Combination Figure 7As shown, in this embodiment, the guide seat 4 is fixedly installed in the lower part of the mounting cavity 11, and it is interference-fitted with the inner wall of the mounting cavity 11. The guide seat 4 includes an air inlet plate 41, and a guide portion 43 is provided in the middle of the air inlet plate 41. Four second air holes 42 are evenly distributed around the guide portion 43 as gas channels. The guide portion 43 is a cylindrical protrusion that extends upward from the middle of the air inlet plate 41. It has an axially penetrating guide hole 44. The hole wall has four guide grooves 45 along the axial direction that correspond to the guide ribs 33 of the moving member 3. After the lower end of the moving member 3 passes through the guide hole 44, the coaxiality and stability of the axial movement are ensured by the cooperation of the guide ribs 33 and the guide grooves 45.

[0045] Combination Figure 8 As shown, the inner cover 6 is a circular cover, including an air outlet plate 61 and an annular sidewall. The inner wall of the sidewall is threaded to connect with the inner section 14 of the valve seat 1. The air outlet plate 61 is a circular flat plate that covers the air outlet end of the mounting cavity 11. It has a clearance hole 63 in its center, and four evenly distributed first air holes 62 are provided around the clearance hole 63. The size of the clearance hole 63 matches the size of the lower end of the connecting pin 51 to avoid interference between the connecting pin 51 and the sealing plate 5 when it is attached to the air outlet plate 61.

[0046] The outer cover 7 is a circular cover with an internal thread on its inner wall that is threaded to the outer extension 12 of the valve seat 1. An annular sealing groove (not shown in the figure) is provided on the side surface facing the valve seat 1. A sealing ring 71 is embedded in the groove. When the outer cover 7 is tightened, the sealing ring 71 fills the gap between the outer cover 7 and the outer extension 12 to prevent gas leakage.

[0047] In this embodiment, the inflation valve switches between three working states by rotating lever 23: When inflation is required, rotate lever 23 to engage positioning protrusion 25 with first positioning groove 112, aligning indicator arrow 27 with "inflation" indicator point. At this time, transmission unit 28 drives moving part 3 to move upward, sealing plate 5 adheres to air intake plate 41, and first air hole 62 is in a conductive state. Internal structure as follows: Figure 2 As shown. Gas enters from the inlet end and deforms the sealing plate 5, thus opening the second air hole 42 and enabling air intake. Conversely, when gas flows outward from the outlet end of the inflatable device, it pushes the sealing plate 5 against the inlet plate 41, thus closing the second air hole 42 and preventing gas from flowing out. In this case, gas can only enter from the inlet end of the valve seat 1 (after the outer cover 7 is opened), achieving unidirectional air intake and ensuring inflation efficiency.

[0048] When venting is required, the lever 23 is rotated in the opposite direction to engage the positioning protrusion 25 with the second positioning groove 113, aligning the indicator arrow 27 with the "vent" indicator point. The moving part 3 moves downward, causing the sealing plate 5 to adhere to the vent plate 61, and the second vent 42 is in a conductive state. Gas enters from the vent end and pushes the sealing plate 5 to deform, thereby opening the first vent 62 and realizing the venting operation. Conversely, when external gas flows in from the inlet end, it pushes the sealing plate 5 to press tightly against the vent plate 61, thereby closing the first vent 62 and preventing gas from flowing in. At this time, the gas inside the inflatable product can only be vented outward and will not backflow, achieving one-way venting. Combined with pressing the inflatable product, the internal gas can be quickly emptied, making it easy to store.

[0049] When fine-tuning of the air pressure is required, rotate lever 23 to engage positioning protrusion 25 with third positioning groove 114, aligning indicator arrow 27 with the "bidirectional" indicator point. Sealing plate 5 is positioned between air inlet plate 41 and air outlet plate 61, with both first and second air holes 62 open. At this time, gas can flow bidirectionally, allowing users to precisely adjust the air pressure of inflatable products by slightly pressing or adding air, adapting to different comfort needs.

[0050] The inflation valve provided in this embodiment has an ingenious structural design, which can switch between three states with simple operation without the need to disassemble or replace parts, making it convenient to operate; moreover, the inflation valve has the advantages of stable structure, reliable sealing and low failure rate, which can meet the needs of diverse scenarios such as daily life at home, outdoor camping, and water entertainment.

[0051] Although the present invention has been disclosed above, its protection scope is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and all such changes and modifications will fall within the protection scope of the present invention.

Claims

1. An inflation valve, characterized in that, include: Valve seat (1), with a through mounting cavity (11) in its middle; The valve core is disposed in the mounting cavity (11); The inner cover (6) is fixedly installed at the air outlet end of the valve seat (1). The inner cover (6) includes an air outlet plate (61) covering the mounting cavity (11). The air outlet plate (61) is provided with a plurality of first air holes (62). The valve core comprises the following components arranged sequentially from the air inlet end to the air outlet end: A rotating component (2) is movably disposed in the mounting cavity (11) and can rotate about the axis of the mounting cavity (11). The rotating component (2) is provided with an axially extending transmission part (28). The moving part (3) is in transmission cooperation with the transmission part (28), and the rotating part (2) can drive the moving part (3) to move along the axial direction of the mounting cavity (11); A guide seat (4) is fixedly installed in the mounting cavity (11). The guide seat (4) includes an air inlet plate (41) covering the mounting cavity (11). The air inlet plate (41) is provided with a guide hole (44) and a plurality of second air holes (42). The moving part (3) passes through the guide hole (44). The sealing sheet (5) is fixedly connected to the end of the moving part (3), and the moving stroke of the sealing sheet (5) covers the following states: closing the first air hole (62), simultaneously opening the first air hole (62) and the second air hole (42), and closing the second air hole (42).

2. The inflation valve according to claim 1, characterized in that, The inner wall of the mounting cavity (11) is provided with an annular rib (111). The rotating component (2) includes a rotating ring (21) and a lever (23). The side wall of the rotating ring (21) is provided with a circumferential groove (22). The annular rib (111) is inserted into the circumferential groove (22) to make the rotating component (2) rotatably connected to the valve seat (1). The lever (23) extends radially along the rotating component (2). Both ends of the lever (23) are connected to the rotating ring (21). The transmission part (28) is connected to the middle part of the lever (23).

3. The inflation valve according to claim 2, characterized in that, The rotating ring (21) is provided with a positioning piece (24), and the positioning piece (24) is provided with a positioning protrusion (25). The position of the positioning piece (24) is aligned with one end of the lever (23). The inner wall of the mounting cavity (11) is provided with a first positioning groove (112), a second positioning groove (113) and a third positioning groove (114). When the positioning protrusion (25) enters the first positioning groove (112), the sealing piece (5) closes the first air hole (62). When the positioning protrusion (25) enters the second positioning groove (113), the sealing piece (5) closes the second air hole (42). When the positioning protrusion (25) enters the third positioning groove (114), the first air hole (62) and the second air hole (42) are simultaneously connected.

4. The inflation valve according to claim 3, characterized in that, The rotating ring (21) is provided with a baffle (26), and the positioning plate (24) is positioned aligned with the end of the lever (23) away from the positioning plate (24). The inner wall of the mounting cavity (11) is provided with a protruding block (115), and the position of the block (115) is aligned with the third positioning groove (114). When the baffle (26) moves to abut against both sides of the block (115), the positioning protrusion (25) moves to the first positioning groove (112) and the second positioning groove (113) respectively.

5. The inflation valve according to claim 4, characterized in that, The surface of the lever (23) is provided with an indicator arrow (27), which points to the end corresponding to the positioning piece (24). The surface of the valve seat (1) is provided with three indicator points, which are respectively aligned with the first positioning groove (112), the second positioning groove (113) and the third positioning groove (114).

6. The inflation valve according to any one of claims 1-5, characterized in that, The transmission part (28) is cylindrical, the moving part (3) is cylindrical, the outer wall of the transmission part (28) is provided with a spiral rib (29), the inner wall of the moving part (3) is provided with a spiral groove (31), the moving part (3) is sleeved on the transmission part (28), and the spiral rib (29) engages with the spiral groove (31).

7. The inflation valve according to claim 6, characterized in that, The end of the movable part (3) is provided with a connecting hole (32). The sealing plate (5) is inserted into the connecting hole (32) and connected to the movable part (3) through a connecting pin (51). The air outlet plate (61) is provided with a clearance hole (63) that matches the connecting pin (51).

8. The inflation valve according to claim 6, characterized in that, The outer surface of the moving part (3) is provided with a plurality of guide ribs (33), the air intake plate (41) is provided with a protruding guide part (43), the guide hole (44) is a through hole that penetrates the guide part (43), and the guide groove (45) matching the guide rib (33) is provided on the hole wall of the guide hole (44).

9. The inflation valve according to any one of claims 1-5, characterized in that, The valve seat (1) includes an extended section (12), a limiting ring (13), and an inner section (14) connected in sequence. The diameter of the limiting ring (13) is larger than that of the extended section (12) and the inner section (14). The inner section (14) is threadedly connected to the inner cover (6). The extended section (12) is threadedly connected to an outer cover (7). The outer cover (7) has a sealing groove on one side surface facing the valve seat (1), and a sealing ring (71) is provided in the sealing groove.

10. An inflatable product, characterized in that, Including the inflation valve as described in any one of claims 1-9.

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