CN114754179A

CN114754179A - Inflation valve

Info

Publication number: CN114754179A
Application number: CN202210355605.7A
Authority: CN
Inventors: 屈维; 何泽青; 张帅; 姜毅
Original assignee: Aerospace Information Research Institute of CAS
Current assignee: Aerospace Information Research Institute of CAS
Priority date: 2022-04-06
Filing date: 2022-04-06
Publication date: 2022-07-15

Abstract

An embodiment of the present invention provides an inflation valve, including: the valve body is internally provided with a cavity, the valve body is provided with an inlet and an outlet which are communicated with the cavity, and the outlet is used for being communicated with a device to be inflated; a valve core arranged in the cavity, wherein the valve core can move relative to the valve body to communicate or block communication between the inlet and the outlet; the connecting piece is arranged on one side of the valve body close to the inlet so as to input airflow to the inlet or close the inlet; wherein, the connecting piece can reciprocate relative to the valve body to be detachably connected with the valve body. The inflation valve provided by the embodiment of the invention is convenient to disassemble and assemble, has a simple structure, and is suitable for quick inflation of small captive balloons.

Description

Inflation valve

Technical Field

The embodiment of the invention relates to the field of captive balloons, in particular to an inflation valve.

Background

The captive balloon is an unpowered aerostat using helium as buoyancy lift gas, has the characteristics of strong load capacity, long air-staying time, good wind resistance and the like compared with an unmanned aerial vehicle, and has been used as a military weapon train army. Compared with a large captive balloon, the small captive balloon is better in maneuverability, can be more flexibly and quickly deployed at a required position, and can be used for task purposes such as fixed-point detection and observation. Small and large captive balloons are generally distinguished by volume and load weight, for example small captive balloons may have a volume of 20-100 cubic meters and a load weight of 1-80kg, whereas large captive balloons may have a volume of 3000-10000 cubic meters and a load weight of 50-1000 kg.

In the process of deploying the captive balloon, helium gas is required to be filled into a captive balloon body through a helium filling port to enable the balloon body to be formed and lifted, and after the balloon is filled, the captive balloon is separated from a gas source and keeps the balloon sealed when required. Related small-size captive balloon is generally connected with a high-pressure air pipe through a threaded connecting piece, high-pressure air is directly filled into the ball body, connection and disassembly of the high-pressure air pipe and the captive balloon are complex through threaded connection, and rapid disconnection cannot be achieved in emergency.

Disclosure of Invention

In view of this, an embodiment of the present invention provides an inflation valve to solve the technical problem of how to simplify a connection structure between the inflation valve and a high pressure air pipe.

The technical scheme of the embodiment of the invention is realized as follows:

an embodiment of the present invention provides an inflation valve, including: the valve body is internally provided with a cavity, the valve body is provided with an inlet and an outlet which are communicated with the cavity, and the outlet is used for being communicated with a device to be inflated; the valve core is arranged in the cavity and can move relative to the valve body to communicate or block communication between the inlet and the outlet; the connecting piece is arranged on one side of the valve body close to the inlet so as to input airflow to the inlet or close the inlet; wherein, the connecting piece can reciprocate relative to the valve body to be detachably connected with the valve body.

In some embodiments, the valve body comprises: the first shell extends along a first direction, the cavity is arranged in the first shell, the inlet is arranged at one end of the cavity in the first direction, and the outlet is arranged on the first shell; the supporting structure is arranged in the cavity and fixedly connected with the first shell, a through hole extending in the first direction is formed in the supporting structure, and the through hole is positioned between the inlet and the outlet; wherein the valve core passes through the through hole and can move along the first direction to communicate or block the communication between the inlet and the outlet.

In some embodiments, the valve cartridge comprises: a rod-shaped member passing through the through hole; the plate-shaped piece is fixed at one end of the rod-shaped piece and is positioned outside the through hole; the elastic piece is sleeved on the rod-shaped piece and at least partially positioned in the through hole.

In some embodiments, the support structure comprises: a hollow cylinder, the through hole being coaxial with the hollow cylinder; the supporting rods are connected to the outer side of the hollow column body and are distributed at intervals in the circumferential direction of the hollow column body; the connecting piece can extend into the cavity from the inlet to be connected with the supporting rod and can be rotatably disconnected with the supporting rod.

In some embodiments, the connector comprises: a second case extending in the first direction and having one end open; and a plurality of clamping groove structures which are arranged at intervals in the circumferential direction are formed on the side wall of the second shell around the open end, and each clamping groove structure is used for clamping or releasing the corresponding support rod.

In some embodiments, the card slot arrangement comprises: wedge-shaped grooves extending from the open end to a closed end in a first direction, each wedge-shaped groove having a length in a circumferential direction of the closed end that is less than a length in a circumferential direction of the open end; the strip-shaped groove is communicated with the wedge-shaped groove and extends along the circumferential direction of the second shell, and the strip-shaped groove is located in the first direction between the closed end and the open end of the wedge-shaped groove.

In some embodiments, the connector further comprises one of: the inflation interface part is fixedly connected to one end, opposite to the open end, of the second shell, and is used for communicating an air source with the inner space of the second shell so as to inflate the air to enter the inlet of the valve body; and the end cover part is fixedly connected with one end of the second shell opposite to the open end, and closes the inner space of the second shell so as to close the inlet of the valve body.

In some embodiments, the inflatable interface is internally a tapered space about the first direction, the tapered space increasing in cross-section towards the second housing.

In some embodiments, an exterior of the air filled interface portion and/or end cap portion is provided with a protrusion to rotate the second housing.

In some embodiments, the inflation valve further comprises: the flange plate is fixed in the inner cavity of the device to be inflated; the valve body is provided with a flange ring which is fixedly connected with the flange plate, and the flange ring is arranged around the inlet.

The embodiment of the invention provides an inflation valve, which comprises a valve body, a valve core and a connecting piece, wherein the valve core is arranged in a cavity of the valve body, and can move relative to the valve body to communicate or block an inlet and an outlet which are communicated with the valve body; the connecting piece is arranged on one side of the valve body close to the inlet so as to input airflow to the inlet or seal the inlet, and can rotate to and fro relative to the valve body so as to be detachably connected with the valve body. In the embodiment of the invention, the gas transmission to the inlet of the valve body or the inlet closing is realized through the connecting piece, so that the gas filling to the captive balloon can be completed; and the connecting piece can be connected with or detached from the valve body through reciprocating rotation relative to the valve body, so that the connecting piece and the valve body can be quickly connected and disconnected. The inflation valve provided by the embodiment of the invention is convenient to disassemble and assemble, has a simple structure, and is suitable for quick inflation of small captive balloons.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below. It should be understood that the drawings described below are only a part of the drawings of the embodiments of the present invention, and that other drawings may be obtained by those skilled in the art without inventive effort.

FIG. 1 is a schematic view of an embodiment of the present invention showing the connection of an inflation valve to a captive balloon and its inflated, uninflated state;

FIG. 2 is a schematic exterior view of an inflation valve of an embodiment of the present invention in an inflated condition;

FIG. 3 is a schematic cross-sectional view of an inflation valve of an embodiment of the present invention in an inflated condition;

FIG. 4 is a schematic exterior view of an inflation valve of an embodiment of the present invention in a non-inflated state;

FIG. 5 is a schematic cross-sectional view of an inflation valve of an embodiment of the present invention in a non-inflated state;

FIG. 6 is a schematic view of a valve body of an inflation valve in accordance with an embodiment of the present invention;

FIG. 7 is a schematic view of a valve cartridge of an inflation valve in accordance with an embodiment of the present invention;

FIG. 8 is a schematic view of a connector of an inflation valve of an embodiment of the present invention including an inflation interface;

FIG. 9 is a schematic view of a connector including an end cap portion of an inflation valve in accordance with an embodiment of the present invention;

Fig. 10 is a partially enlarged schematic view of a portion a in fig. 3.

Description of reference numerals:

10. a small captive balloon; 11. an installation port; 12. a capsule body; 20. a valve body; 21. an inlet; 22. an outlet; 23. a first housing; 24. a support structure; 241. a through hole; 242. a support bar; 25. an annular projection; 26. a flange ring; 27. a fourth gasket; 28. a sixth gasket; 30. a valve core; 31. a rod-like member; 311. a fixing member; 32. a plate-like member; 33. an elastic member; 34. a first gasket; 40. a connecting member; 401. a first connecting member; 402. a second connecting member; 41. a second housing; 42. a wedge-shaped groove; 43. a strip-shaped groove; 44. an inflation interface; 441. a conical space; 442. a cylindrical handle; 443. a second gasket; 45. an end cap portion; 451. a strip-shaped bulge; 452. a third gasket; 50. a flange plate; 51. and a fifth gasket.

Detailed Description

The present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. Also, the embodiments described below are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from these embodiments without inventive step, are within the scope of protection of the present invention.

The individual features described in the embodiments can be combined in any suitable manner without departing from the scope, for example different embodiments and solutions can be formed by combining different features. Various possible combinations of the various specific features of the invention are not described in detail to avoid unnecessary repetition.

In the following description, references to the term "first/second" - "merely distinguish between different objects and do not indicate that there is an identity or relationship between the objects. It should be understood that the references to the orientation descriptions "above", "below", "outside" and "inside" are all the orientations in the normal use state, and the "left" and "right" directions indicate the left and right directions indicated in the specific corresponding schematic diagrams, and may or may not be the left and right directions in the normal use state.

It should be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element identified by the phrase "comprising an … …" does not exclude the presence of other identical elements in the process, method, article, or apparatus that comprises the element.

The embodiment of the invention provides an inflation valve which is used for inflating a small captive balloon 10. The connection of the inflation valve of the present embodiment to the small captive balloon 10 and the inflation process will be described. As shown in fig. 1, a mounting port 11 for mounting an inflation valve is formed in a bag body material of the small-sized captive balloon 10, the inflation valve is mounted in the mounting port 11, an air inlet of the inflation valve for inputting air flow faces outward, a corresponding sealing structure is arranged at a connecting position of the mounting port 11 and the inflation valve, and except that the air inlet can be communicated with an air storage bag body and the atmosphere, other places are sealed. When the captive balloon needs to be inflated, the air inlet of the inflation valve is connected with an air source to inflate the air storage bag body, the air source comprises a high-pressure air pipe, and the structure of the inflation valve in an inflated state is S1. When inflation is not needed, the air inlet is closed through the inflation valve, the air in the air storage bag body is prevented from flowing out, and the structure of the inflation valve in a non-inflation state is S2. It is to be understood that the inflation valve of embodiments of the present invention may be used with other devices to be inflated.

FIGS. 2 and 3 are schematic views of an inflation valve of an embodiment of the present invention in an inflated state, and FIGS. 4 and 5 are schematic views of an inflation valve of an embodiment of the present invention in a non-inflated state. The embodiment of the invention provides an inflation valve which comprises a valve body 20, a valve core 30 and a connecting piece 40. Wherein the configuration of the connector 40 in the inflated condition shown in figures 2 and 3 and the connector 40 in the non-inflated condition shown in figures 4 and 5 is different, namely: the connector has two replaceable structures.

As shown in fig. 2 and 3, the valve body 20 has a cavity therein, the valve body 20 is provided with an inlet 21 and an outlet 22 which are communicated with the cavity, the outlet 22 is used for being communicated with the device to be inflated, in the inflated state, the inlet 21 is used for inputting the airflow and can be used as an air inlet in fig. 1, and the outlet 22 is used for inputting the airflow into the device to be inflated. The portion of the cavity between the inlet 21 and the outlet 22 may serve as an air flow passage.

In some embodiments, as shown in fig. 3 and 6, the valve body 20 may include a first housing 23 and a support structure 24. The first housing 23 extends along a first direction, which may be understood as a length direction of the first housing 23, and the first housing 23 forms the cavity therein. In some embodiments, the first housing 23 may be a hollow cylinder, and correspondingly, the first direction is an axial direction of the first housing 23, i.e., an up-down direction of fig. 3. The inlet 21 is provided at one end (upper end shown in fig. 3 and 6) of the cavity in the first direction, and the outlet 22 is provided on the first housing 23. In some embodiments, the outlet 22 may be disposed on a cylindrical outer sidewall of the first housing 23, and the outlet 22 may be located near the other end of the first housing 23 opposite the inlet 21, and the outer sidewall may have a larger area than the cylindrical end, so that a larger area outlet may be provided to facilitate rapid airflow from the cavity into the device to be inflated.

As shown in fig. 3 and 6, the supporting structure 24 is disposed in the cavity and fixedly connected to the first housing 23, the supporting structure 24 is provided with a through hole 241 extending in a first direction, and the through hole 241 is located between the inlet 21 and the outlet 22. The support structure 24 may increase the overall strength of the first housing 23, for example, the support structure 24 may be a rib or the like provided on the inner wall of the first housing 23. In some embodiments, the support structure 24 may include a hollow cylinder and a plurality of support rods 242. The through hole 241 is coaxial with the hollow cylinder, that is, the through hole 241 is opened in the hollow cylinder and penetrates through the hollow cylinder along the axial direction of the hollow cylinder. The support rods 242 are connected to the outside of the hollow column body and are distributed at intervals in the circumferential direction of the hollow column body; that is, one end of the support rod 242 is connected to the outside of the hollow column, and the other end extends outwards, and can be connected to the inner wall of the hollow cavity or suspended. Alternatively, it is understood that the hollow cylinder is formed by the intersection of a plurality of support rods 242. In some embodiments, four support rods 242 may be provided, evenly distributed in the circumferential direction of the hollow cylinder, and spaced 90 degrees apart from each other. The hollow cylinder and the through hole 241 are located at the center of the cavity, and the radial (left and right direction in fig. 3) lengths of the four support rods 242 are also identical, that is, the four support rods 242 are symmetrical to each other about the axis of the first housing 23.

As shown in fig. 3, the valve core 30 is disposed in the cavity, and the valve core 30 is movable relative to the valve body 20 to communicate with or block communication between the inlet port 21 and the outlet port 22. Namely, the valve core 30 moves in the cavity, and during the movement, the valve core has two states, namely a state of communicating the inlet 21 and the outlet 22, and the state is a gas charging state, in which the gas flow entering from the inlet 21 can flow out from the outlet 22 through the cavity; the other state is a non-inflated state in which the communication between the inlet 21 and the outlet 22 is blocked, and in this state, the gas in the cavity communicating with the inlet 21 cannot flow out through the outlet 22. In some embodiments, the valve core 30 may pass through the through hole 241 and may move in the first direction to achieve communication or block communication between the inlet 21 and the outlet 22, and the through hole 241 is located at the center of the cavity, so that the movement of the valve core 30 is smoother.

In some embodiments, as shown in fig. 7, the valve core 30 includes a rod 31, a plate 32, and an elastic member 33. Wherein the rod 31 passes through the through hole 241 shown in fig. 6, and moves in the first direction along the through hole 241.

As shown in fig. 7, the plate member 32 is fixed to one end of the rod member 31 and is positioned outside the through hole 241. For example, the plate 32 is fixed to the lower end of the rod 31 shown in fig. 3 and 5, and as shown in fig. 3 and 5, the plate 32 may contact and move along the side wall of the first housing 23 in a first direction, and during the movement, the plate 32 may open or block the air flow path from the cavity to the outlet 22. In some embodiments, as shown in fig. 3 and 5, the sidewall of the first housing 23 may be provided with an annular protrusion 25, and the annular protrusion 25 may be integrally formed with the inner wall of the cavity, i.e., the cavity and the annular protrusion 25 are integrally formed when the first housing 23 is manufactured. The plate 32 may abut the annular projection 25. In some embodiments, the first sealing gasket 34 is disposed at the end of the plate 32 abutting the annular protrusion 25 to improve the sealing performance between the plate 32 and the annular protrusion 25 and reduce the risk of air leakage from the inflation valve in the non-inflated state.

As shown in fig. 3 and 5, the elastic element 33 is disposed on the rod 31 and at least partially located in the through hole 241, as shown in fig. 3, one end (the lower end shown in fig. 3) of the elastic element 33 can abut against the through hole 241 in the axial direction (a step is provided in the through hole 241), and the other end (the upper end shown in fig. 3) of the elastic element 33 abuts against the fixing element 311 outside the through hole 241. In some embodiments, the elastic member 33 may be a compression spring.

The operation of the valve cartridge 30 is described as follows:

as shown in fig. 3, in the state of inflation of the inflation valve, high-pressure gas enters the cavity through the inlet 21, and under the pressure action of the high-pressure gas, the rod-shaped member 31 drives the plate-shaped member 32 to move downward, the plate-shaped member 32 is separated from the annular protrusion 25 and moves downward to the bottom end of the outlet 22, the cavity is communicated with the outlet 22, and the high-pressure gas can enter the device to be inflated through the cavity from the outlet, so that inflation of the device to be inflated is realized. During the downward movement of the rod 31, the fixing part 311 at the upper end of the elastic element 33 correspondingly moves downward, and the lower end of the elastic element 33 abuts against the fixed position of the first housing 23, so that the elastic element 33 is compressed and stored.

As shown in fig. 5, when the inflation valve is in the non-inflation state, that is, no high-pressure gas enters the cavity from the inlet 21, the end of the rod 31 away from the plate 32 is not under pressure, and the elastic force of the elastic member 33 drives the fixed member 311 to move toward the inlet 21, so as to drive the rod 31 to move (upward) toward the inlet 21. The plate 32 moves upward with the rod 31 until the plate 32 moves above the outlet 22 and abuts against the annular protrusion 25, at which time the first seal 34 forms a seal with the first housing 23, the air flow path between the cavity and the outlet 22 is blocked, and the sealed state of the device to be inflated is maintained.

As shown in fig. 3 and 5, the connection member 40 is provided at a side of the valve body 20 adjacent to the inlet 21 to input the air flow to the inlet 21 or to close the inlet 21; the connecting member 40 is reciprocally rotatable with respect to the valve body 20 to be detachably connected to the valve body 20.

As shown in fig. 8 and 9, the connector 40 includes two specific configurations for the inflated and non-inflated states of the inflation valve, respectively. In some embodiments, as shown in FIG. 6, the connector 40 may extend into the cavity from the inlet 21 to connect with the support rod 242 and may be pivotally disconnected from the support rod 242. The connecting piece 40 can be connected with or detached from the valve body 20 through the reciprocating rotation of the connecting piece 40 relative to the valve body 20, the structure of the whole inflation valve is simplified, and the connecting piece 40 can be quickly disconnected from the valve body 20, so that emergency situations can be conveniently dealt with.

In some embodiments, as shown in fig. 8 and 9, the connector 40 may include a second housing 41. Wherein the second housing 41 extends in the first direction and is open at one end, where the second housing 41 is open at one end for insertion into the inlet 21 of the first housing 23 shown in fig. 6. The second housing 41 is provided with a plurality of slot structures arranged at intervals in the circumferential direction, that is, each slot structure is not communicated with the adjacent slot structure in the circumferential direction. With the rotation of the connecting member 40, each slot structure can rotate for the corresponding supporting rod 242 to be inserted or released; the supporting rod 242 and the clamping groove structure have a one-to-one correspondence relationship, the supporting rod 242 can be clamped into the clamping groove structure, the connecting piece 40 is connected with the valve body 20, the supporting rod 242 can be separated from the clamping groove structure, and the connecting piece 40 and the valve body 20 are detached.

In some embodiments, as shown in fig. 8 and 9, the slot structure includes a wedge slot 42 and a strip slot 43 in communication, the slot structure extending radially through the second housing 41. Wherein the wedge-shaped grooves 42 extend (i.e., extend upward) from the open end (lower end) of the second housing 41 to the closed end in a first direction, and the length of each wedge-shaped groove 42 in the circumferential direction of the closed end is smaller than the length in the circumferential direction of the open end. It will be appreciated that the wedge-shaped groove 42 is a groove that tapers in circumferential length from the open end to the closed end, the groove having a profile resembling a triangle or a cone or a trapezoid. The slit 43 communicates with the wedge groove 42 and extends in the circumferential direction of the second housing 41, and the slit 43 is located between the closed end and the open end of the wedge groove 42 in the first direction. For example, the strip groove 43 is a groove with an outer shape similar to a rectangle, the strip groove 43 is used for the support rod 242 to be clamped in, the width of the strip groove 43 can be matched with the width of the support rod 242, and the length of the strip groove 43 extending in the circumferential direction of the second housing 41 is greater than or equal to a preset value, so that the connection between the connecting piece 40 and the valve body 20 is relatively stable.

At bracing piece 242 and draw-in groove structural connection's in-process, bracing piece 242 gets into wedge groove 42 from the open end, because wedge groove 42 is great at the circumferential length of open end to make things convenient for bracing piece 242 to get into, bracing piece 242 gets into the wedge groove after, through second casing 41 around the rotation of its axial (first direction), thereby make bracing piece 242 can follow the edge entering bar groove 43 in wedge groove 42 fixed with bar groove 43, realize being connected of connecting piece and valve body. When the support rod 242 is required to be disconnected from the clamping groove structure, the support rod 242 can move to the wedge-shaped groove 42 from the strip-shaped groove 43 and can be separated from the open end of the wedge-shaped groove 42 only by rotating the second shell in the opposite direction in the connection process correspondingly, so that the connection piece and the valve body can be detached. In some embodiments, the inner wall of wedge groove 42 away from strip groove 43 may be curved to more easily guide the smooth movement of support bar 242 relative to wedge groove 42.

In some embodiments, as shown in fig. 8 or 9, the connector 40 may further include an inflation interface portion 44 or an end cap portion 45. As shown in fig. 8, the inflation interface 44 is fixedly connected to an end of the second housing 41 opposite to the open end, and the inflation interface 44 is used for communicating the air source and the inner space of the second housing 41 to inflate the inlet 21 of the valve body 20. That is, the inflation interface 44 serves as an intermediary for communicating the air supply with the interior space of the second housing 41. In some embodiments, interior to the inflation interface 44 is a tapered space 441 about the first direction, the tapered space 441 increasing in cross-section toward the second housing 41. That is, after the airflow flows into the inflation interface 44 from the position where the inflation interface 44 is close to the air source, the airflow channel is gradually increased to accommodate more airflow, so as to accelerate the air supply speed of the air source and accelerate the inflation speed of the inflation valve. In some embodiments, the exterior of the inflation interface 44 may be provided with a protrusion to rotate the second housing 41. In some embodiments, the projection may be a cylindrical handle 442 disposed on an outer sidewall of the inflation interface 44. Thus, the moment arm is longer when the second housing 41 is rotated, and the second housing 41 is rotated more easily. In some embodiments, the inflation interface 44 may be provided with an axially extending post (not shown) that compresses the valve cartridge to move the valve cartridge 30 relative to the valve body 20 to communicate the inlet 21 and the outlet 22. While the end cap portion 45 is not provided.

It should be noted that the inflation interface 44 is used when the inflation valve is inflated, and is removed from the inflation valve after the inflation is finished. The end cap portion 45 is used when the inflation valve is not inflated, and is mounted on the inflation valve, that is, fixed on the device to be inflated, and the two are in a replacement relationship and cannot be mounted on the inflation valve at the same time. For example, fig. 2 and 3 each show an inflation interface portion 44, while fig. 4 and 5 each show an end cap portion 45.

As shown in fig. 9, an end cover portion 45 is fixedly attached to an end of the second housing 41 opposite to the open end, and the end cover portion 45 closes the inner space of the second housing 41 to close the inlet 21 of the valve body 20. The outer portion of the end cap portion 45 is provided with a projection to rotate the second housing 41. Here, the outer portion of the end cap portion 45 is an end portion away from an end of the device to be inflated, and the protrusion is a bar-shaped protrusion 451 at the end portion, which facilitates the rotation of the end cap portion 45 by a human hand or a tool. The strip-shaped projection 451 is more secure than the cylindrical handle 442 of the inflation interface 44 and is less likely to be damaged during operation of the device to be inflated.

In some embodiments, the inflation interface portion 44 and the end cap portion 45 may be secured to the second housing 41, i.e., the second housing 41 may have two sets of connectors 40, referred to as the first connector 401 and the second connector 402, that are fixedly connected to the inflation interface portion 44 and the end cap portion 45, respectively. When the inflation interface 44 or the end cap 45 is mounted, the valve body 20 is mounted together with the second housing 41, i.e., the entire connector 40 is mounted, and is also removed. Thus, the connector 40 is more quickly installed and removed when the inflation valve requires inflation.

In some embodiments, the end of the connector 40 that is connected to the valve body 20 is provided with a gasket to seal the connection between the valve body 20 and the connector 40 from air flow escaping from the connection. In this embodiment, both sets of connectors 40 are provided with gaskets. As shown in fig. 3 and 5, the gaskets of the two sets of connectors 40 are a second gasket 443 and a third gasket 452, respectively, the second gasket 443 being secured to the first connector 401 including the pneumatic interface 44, and the third gasket 452 being secured to the second connector 402 including the end cap portion 45.

In some embodiments, as shown in FIGS. 3 and 10, the inflation valve further comprises a flange 50, the flange 50 being secured to the interior cavity of the device to be inflated; the valve body 20 is provided with a flange ring 26 for fixed connection with the flange 50, the flange ring 26 being arranged around the inlet 21. In some embodiments, as shown in fig. 1, the device to be inflated has a mounting opening 11 communicating with the inner cavity, and the flange 50 is fixed to the inner cavity and disposed around the mounting opening 11. The flange 50 is provided with a plurality of threaded holes, and the flange ring 26 of the valve body 20 is provided with a plurality of screw through holes corresponding to the threaded holes. When the inflator is installed, the outlet 22 end of the valve body 20 is disposed in the inner cavity of the device to be inflated through the installation opening 11, and the inlet 21 end of the valve body 20 is disposed outside the inner cavity of the device to be inflated and also surrounds the installation opening 11. The screws for fixing the valve body 20 are inserted from the flange ring 26 of the valve body 20, penetrate through the bag body 12 of the device to be inflated, enter the inner cavity, enter the threaded holes of the flange plate 50 and are screwed tightly, so that the inflation valve is fixed on the device to be inflated. The inner chamber of the device to be inflated is the inner chamber of the gas storage bag body mentioned in the opening paragraph.

In some embodiments, as shown in FIG. 10, the portion of the first housing 23 abutting the housing of the device to be inflated is provided with a fourth gasket 27, the portion of the flange 50 abutting the housing of the device to be inflated is provided with a fifth gasket 51, and the portion of the flange ring 26 abutting the housing of the device to be inflated is provided with a sixth gasket 28. In this way, the inflation valve is sealed from the portion to which the device to be inflated is attached. In this embodiment, the device to be inflated is a small captive balloon 10, and the body 12 of the device to be inflated is made of a flexible material with light weight, high strength, high air tightness, high specific strength, high flex resistance, high rubbing resistance, good weather resistance and good wear resistance.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the scope of the present invention, which is intended to cover any modifications, equivalents, improvements, etc. within the spirit and scope of the present invention.

Claims

1. An inflation valve, comprising:

the valve body is internally provided with a cavity, the valve body is provided with an inlet and an outlet which are communicated with the cavity, and the outlet is used for being communicated with a device to be inflated;

a valve core arranged in the cavity, wherein the valve core can move relative to the valve body to communicate or block communication between the inlet and the outlet;

The connecting piece is arranged on one side of the valve body close to the inlet so as to input airflow to the inlet or close the inlet;

wherein the connecting piece can rotate to and fro relative to the valve body so as to be detachably connected with the valve body.

2. An inflation valve as claimed in claim 1, wherein the valve body comprises:

the first shell extends along a first direction, the cavity is arranged in the first shell, the inlet is arranged at one end of the cavity in the first direction, and the outlet is arranged on the first shell;

the supporting structure is arranged in the cavity and fixedly connected with the first shell, a through hole extending in the first direction is formed in the supporting structure, and the through hole is positioned between the inlet and the outlet;

wherein the valve core passes through the through hole and can move along the first direction to communicate or block the communication between the inlet and the outlet.

3. The inflation valve of claim 2, wherein the valve spool comprises:

a rod-shaped member passing through the through hole;

the plate-shaped piece is fixed at one end of the rod-shaped piece and is positioned outside the through hole;

the elastic piece is sleeved on the rod-shaped piece and at least partially positioned in the through hole.

4. The inflation valve of claim 2, wherein the support structure comprises:

a hollow cylinder, the through hole being coaxial with the hollow cylinder;

the supporting rods are connected to the outer side of the hollow column body and are distributed at intervals in the circumferential direction of the hollow column body;

the connecting piece can extend into the cavity from the inlet to be connected with the supporting rod and can be rotatably disconnected with the supporting rod.

5. The inflation valve of claim 4, wherein the connector comprises:

the second shell extends along the first direction and one end of the second shell is open; and a plurality of clamping groove structures which are arranged at intervals in the circumferential direction are arranged on the side wall of the second shell around the open end, and each clamping groove structure is used for clamping or releasing the corresponding support rod.

6. The inflation valve of claim 5, wherein the detent structure comprises:

wedge-shaped grooves extending from the open end to a closed end in a first direction, each wedge-shaped groove having a length in a circumferential direction of the closed end that is less than a length in the circumferential direction of the open end;

the bar groove, with the wedge groove intercommunication is followed the circumference of second casing extends, the bar groove is in be located in the first direction between the blind end and the open end of wedge groove.

7. An inflation valve as claimed in claim 5, wherein the connector further comprises one of:

the inflation interface part is fixedly connected to one end, opposite to the open end, of the second shell, and is used for communicating an air source with the inner space of the second shell so as to inflate the air to enter the inlet of the valve body;

and the end cover part is fixedly connected with one end of the second shell opposite to the open end, and closes the inner space of the second shell so as to close the inlet of the valve body.

8. The inflation valve of claim 7, wherein the inflation interface portion is internally tapered about the first direction, the tapered space increasing in cross-section toward the second housing.

9. An inflation valve according to claim 7, characterised in that the exterior of the inflation interface portion and/or end cap portion is provided with a projection to rotate the second housing.

10. The inflation valve of claim 1, further comprising:

the flange is fixed in the inner cavity of the device to be inflated;

the valve body is provided with a flange ring which is fixedly connected with the flange plate, and the flange ring is arranged around the inlet.