CN109357043B

CN109357043B - Inflation valve

Info

Publication number: CN109357043B
Application number: CN201811376627.1A
Authority: CN
Inventors: 菲利普·托马斯·霍桑
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-11-19
Filing date: 2018-11-19
Publication date: 2020-09-01
Anticipated expiration: 2038-11-19
Also published as: CN109357043A

Abstract

An inflation valve comprises a valve casing and an inflation one-way valve element assembly located in the valve casing and used for opening and closing the valve port, and is characterized in that the valve port comprises a first valve port and a second valve port, the interior of the valve casing is sequentially divided into an upper air chamber, a middle air chamber and a lower air chamber from top to bottom, the first valve port is communicated with the upper air chamber and the middle air chamber, the second valve port is communicated with the middle air chamber and the lower air chamber, the middle air chamber is provided with an inflation end capable of inflating an internal bag body, the lower air chamber is provided with an inflation end capable of inflating an external bag body, and the inflation one-way valve element assembly can simultaneously open and close the first valve port and the second valve. The inflation valve has the advantages that the opening and closing synchronism of the two valve ports is good, three independent bag bodies, particularly bag bodies with internal and external structures, can be inflated simultaneously, and the inflation efficiency is improved; meanwhile, impurities such as fine lines and fragments can be effectively prevented from being drawn into the valve port and clamped at the valve block, so that the inflation valve leaks air.

Description

Inflation valve

Technical Field

The invention relates to the field of inflating equipment, in particular to an inflating valve for inflating articles.

Background

The equipment needing inflation, such as an inflatable bed, an inflatable boat, an inflatable tent and the like, is provided with an inflation valve, when the inflatable mattress is used, large-flow air inlet and rapid inflation unfolding are usually needed, and after inflation is finished, the valve is closed, so that gas in the air bag cannot be leaked.

By inspection, the chinese utility model patent with application number CN201220406033.2 (publication number CN202746683U) discloses an inflation valve with both inflation and exhaust functions, wherein the inflation one-way valve core assembly moves downwards and deflects under the action of external force to rest on the lower end surface of the rib to keep the valve port normally open. When the equipment to be inflated with a plurality of different independent air chambers is needed to be inflated or a plurality of equipment to be inflated are needed to be inflated simultaneously, the single independent air chamber or the equipment to be inflated need to be sequentially inflated by using the inflating equipment, so that quick inflation is difficult to realize, and the time consumption is long.

Disclosure of Invention

The present invention provides an inflation valve capable of rapidly inflating or deflating a plurality of independent air chambers simultaneously, in view of the above technical situation.

The technical scheme adopted by the invention for solving the technical problems is as follows: an inflation valve comprises a valve casing and an inflation one-way valve element assembly located in the valve casing and used for opening and closing the valve port, and is characterized in that the valve port comprises a first valve port and a second valve port, the interior of the valve casing is sequentially divided into an upper air chamber, a middle air chamber and a lower air chamber from top to bottom, the first valve port is communicated with the upper air chamber and the middle air chamber, the second valve port is communicated with the middle air chamber and the lower air chamber, the middle air chamber is provided with an inflation end capable of inflating an internal bag body, the lower air chamber is provided with an inflation end capable of inflating an external bag body, and the inflation one-way valve element assembly can simultaneously open and close the first valve port and the second valve.

In a further improvement, the valve housing includes an outer housing and an inner housing, the inner housing being threaded within a cavity of the outer housing; the first valve port is arranged at the diameter-changing position in the middle of the inner shell, and the second valve port is arranged at the edge of the bottom of the inner shell. Divide into inner shell and shell with the valve casing, be favorable to installing the utricule with outside gasbag at the threaded connection department of inner shell and shell, the leakproofness is good, and simple to operate.

In a further improvement, a first inflation port and a second inflation port which are communicated with the middle air chamber are respectively formed at the left end and the right end of the shell; the first inflation inlet and the second inflation inlet are connected with a vent pipe through connecting sleeves. The design can inflate two independent inflation ports simultaneously, so that the inflation speed is increased, and the vent pipe is conveniently connected with the equipment to be inflated.

A second axial strip-shaped hole in a grid shape is annularly arranged at the position of the peripheral wall of the inner shell, which is overlapped with the first inflation inlet and the second inflation inlet; and a first axial strip-shaped hole in a grid shape is annularly arranged at the bottom of the peripheral wall of the shell in the lower air chamber. The design can effectively prevent impurities such as fine lines, fragments and the like from entering the air valve. The bottom of the peripheral wall of the housing may be designed into a grid shape, a mesh shape, or other structures capable of effectively filtering impurities, or a filter sheet may be added to the bottom of the open peripheral wall of the housing.

The inflatable one-way valve core assembly comprises a valve rod and a valve seat arranged on the bottom surface of the valve rod, a through hole is formed in the upper air chamber and connected to the inner wall of the inner shell through a connecting rib, the valve rod is movably arranged in the through hole in a penetrating mode, and a first valve plate is formed at the bottom of the valve rod; the valve rod is sleeved with a spring which enables the valve rod to keep moving upwards, the surface of the valve rod is provided with a ball pen type spinning positioning mechanism, the ball pen type spinning positioning mechanism can convert single linear motion of the valve rod into linear motion and circular motion of the valve rod, and the position of the valve rod in the through hole can be locked under the matched action of the spring and the ball pen type spinning positioning mechanism in the state that a valve port is opened and closed; the shelf that is connected with first valve block is moulded to disk seat upper end, the disk seat lower extreme shaping has the second valve block, the shelf with connect through the connecting pipe between the second valve block. When air is required to be charged and discharged, the valve rod is pushed to move downwards, the first valve plate completely leaves the first valve port, meanwhile, the second valve plate completely leaves the second valve port, the synchronism is good, the air flow passing through the valve port is large, the air charging and discharging efficiency is high, and the air charging and discharging are convenient; in addition, the combination of the spring and the ball pen type spinning positioning structure is adopted, and the valve rod can be positioned in the opening and closing states of the first valve port and the second valve port only by one pressing action, so that both hands can be liberated, and the operation is convenient.

In a further design, a first sealing ring which can be closely matched with the inner hole wall of the first valve port is embedded between the first valve plate and the shelf, an annular embedded groove is formed in the periphery of the second valve plate, and a second sealing ring which can be closely matched with the inner hole wall of the second valve port is arranged in the annular embedded groove. The design can make the valve block can be good when the inflation valve is not used and block up the valve port, prevent the inside gas of utricule from escaping.

The valve rod comprises a hollow upper rod part, a lower rod part inserted in the upper rod part and an annular limiting cover, wherein a protruding part protruding out of the upper end surface of the upper rod part is formed at the top of the lower rod part, and the limiting cover is sleeved on the protruding part; the spring is arranged between the limiting cover and the through hole; a step part for limiting the axial movement of the lower rod part relative to the limiting cover is formed on the inner wall of the limiting cover, and a diameter-changing part matched with the step part is arranged on the surface of the protruding part; the upper rod part comprises a connecting hole with a square cross section, the surface of the lower rod part is formed with a square rod part matched with the connecting hole, and the connecting hole can limit the circular motion of the lower rod part relative to the upper rod part. The valve rod is divided into the upper rod part and the lower rod part, so that the valve rod is convenient to mold and process, and the manufacturing cost is saved; the valve rod is controlled by the limiting cover to move synchronously in the axial direction of the upper rod part and the lower rod part, and the upper rod part and the lower rod part rotate synchronously in the circumferential direction through the square connecting hole, so that the valve rod is more sensitive to transmission. The axial and circumferential limiting structures can also be arranged into structures such as convex rings, grooves, pin shafts, holes or other structures with broken line-shaped sections.

The ball pen type spinning limiting structure comprises a deep groove part and a shallow groove part which are axially arranged at intervals at the lower part of the peripheral wall of the lower rod part, a convex rib part which is axially arranged at the bottom of the peripheral wall of the upper rod part, and a ring-shaped part which is sleeved at the lower part of the lower rod part; two positioning columns which are oppositely arranged are formed on the inner wall of the annular piece and can slide in the deep groove part and the shallow groove part; a convex rib part is correspondingly arranged above each deep groove part or each shallow groove part, the bottom surface of each convex rib part is a guide inclined surface, and the guide inclined surface can guide the positioning column to the next adjacent shallow groove part or guide the positioning column from the shallow groove part to the next adjacent deep groove part; when the positioning column is positioned in the deep groove part, the valve port is closed by the inflation check valve core assembly, and when the positioning column is positioned in the shallow groove part, the valve port is opened by the inflation check valve core assembly. The positioning columns alternately enter the deep grooves and the shallow grooves which are formed on the surface of the lower rod part and are arranged at intervals, so that the valve port is opened and closed regularly, and the positioning is accurate.

In a further design, the ring-shaped piece is pressed on the lower edge of the through hole by a gland sleeved on the periphery of the through hole. The adoption sets up gland fixed ring spare alone, can simplify production mould, simple to operate.

In order to prevent impurities from entering the valve casing when the inflation valve is in an uninflated state, the upper air chamber is also detachably connected with a valve cover capable of shielding the upper air chamber, the lower part of the valve cover is provided with a downward extending annular wall, two clamping grooves are formed in the annular wall, and the clamping grooves clamp the connecting ribs so as to be fixedly connected with the inner casing.

Compared with the prior art, the invention has the advantages that: the plurality of inflation ports are arranged, so that three independent bag bodies, particularly bag bodies with internal and external structures, can be inflated simultaneously, the inflation speed is increased, and the inflation time is saved; the simultaneous opening and closing of the two valve ports are controlled by the inflation one-way valve core assembly, a plurality of valve control systems are not needed, the structure of the inflation valve is simplified, and the opening and closing synchronism of the valve is good; the middle air chamber and the lower air chamber are not completely exposed in the equipment to be inflated, the valve shell wall at the inflation inlet is arranged in a grid shape, so that sufficient ventilation capacity can be guaranteed, and impurities such as fine lines and fragments can be effectively prevented from being drawn into the valve port and clamped at the valve plate to cause air leakage of the inflation valve.

Drawings

FIG. 1 is an exploded perspective view of the present invention;

FIG. 2 is a perspective view of an inner shell in an embodiment of the present invention;

FIG. 3 is a perspective view of a valve cover in an embodiment of the present invention;

FIG. 4 is a cross-sectional view of a valve port closed according to an embodiment of the present invention;

FIG. 5 is a cross-sectional view of an embodiment of the present invention with the valve port open;

FIG. 6 is a perspective view of the valve stem of FIG. 4 (with the gland removed);

FIG. 7 is a perspective view of the valve stem of FIG. 5 (with the gland removed);

FIG. 8 is a perspective view of a valve stem in an embodiment of the present invention;

fig. 9 is a cross-sectional view of the embodiment of the present invention in use.

Detailed Description

The invention is described in further detail below with reference to the accompanying examples.

As shown in fig. 1-9, is a preferred embodiment of the present invention.

An inflation valve, as shown in fig. 1-3, comprises a valve housing 1, an inflation one-way valve core assembly and a valve cover 9, wherein the inflation one-way valve core assembly is positioned in the valve housing 1 and opens and closes a valve port. The valve housing 1 includes an outer housing 11 and an inner housing 12, and the outer housing 11 and the inner housing 12 are connected by threads. The valve ports include a first valve port 21 and a second valve port 22, the first valve port 21 is disposed at a diameter-variable position in the middle of the inner casing 12, and the second valve port 22 is disposed at the bottom edge of the inner casing 12. The interior of the valve housing 1 is sequentially provided with an upper air chamber 101, a middle air chamber 102 and a lower air chamber 103 from top to bottom, a first valve port 21 is communicated with the upper air chamber 101 and the middle air chamber 102, and a second valve port 22 is communicated with the middle air chamber 102 and the lower air chamber 103. A first inflation inlet 111 and a second inflation inlet 112 which are communicated with the middle air chamber 102 are respectively formed at the left end and the right end of the shell 11, and the first inflation inlet 111 and the second inflation inlet 112 are both connected with a vent pipe 32 through a connecting sleeve 31. A second axial strip-shaped hole 120 in a grid shape is annularly arranged at the position where the peripheral wall of the inner shell 12 coincides with the first inflation inlet 111 and the second inflation inlet 112. The bottom of the circumferential wall of the housing 11 in the lower air chamber 103 is provided with a first axial strip-shaped hole 110 in a grid shape. The upper air chamber 101 is provided with through holes 121, and the through holes 121 are connected to the inner wall of the inner shell 12 through connecting ribs 122. The lower part of the valve cover 9 is provided with a downwardly extending annular wall 91, and two locking grooves 911 are formed on the annular wall 91, and the connecting ribs 122 are locked by the locking grooves 911 so as to fixedly connect the valve cover 9 with the inner shell 12.

As shown in fig. 4-8, the charging one-way valve core assembly comprises a valve rod 5 and a valve seat 6 arranged on the bottom surface of the valve rod 5. The valve stem 5 comprises an upper stem portion 51, a lower stem portion 52 and an annular retaining cap 53. The upper rod part 51 is hollow and comprises a connecting hole 510 with a square cross section, the lower rod part 52 is inserted into the upper rod part 51, the surface of the lower rod part 52 is formed with a square rod part 520 matched with the connecting hole 510, and the connecting hole 510 can limit the circular motion of the lower rod part 52 relative to the upper rod part 51. The top end of the lower rod part 52 is formed with a convex part 521 protruding the upper end surface of the upper rod part 51, the limiting cover 53 is sleeved on the convex part 521, the inner wall of the limiting cover 53 is formed with a step part 531 limiting the axial movement of the lower rod part 52 relative to the limiting cover 53, and the surface of the convex part 521 is provided with a reducing part 522 matched with the step part 531. The valve rod 5 penetrates through the through hole 121, the first valve plate 50 is formed at the bottom of the lower rod part 52, the shelf 61 connected with the first valve plate 50 is formed at the upper end of the valve seat 6, the second valve plate 60 is formed at the lower end of the valve seat 6, and the partition plate 61 is connected with the second valve plate 60 through the connecting pipe 62. A first sealing ring 81 which can be closely matched with the inner hole wall of the first valve port 21 is embedded between the first valve plate 50 and the shelf 61, an annular embedded groove is arranged on the periphery of the second valve plate 60, and a second sealing ring 82 which can be closely matched with the inner hole wall of the second valve port 22 is arranged in the annular embedded groove.

As shown in fig. 4-7, the valve rod 5 is also sleeved with a spring 7 which keeps the valve rod moving upwards, and the spring 7 is positioned between the limiting cover 53 and the through hole 121. The surface of the valve rod 5 is provided with a ball pen type spinning positioning mechanism, and the ball pen type spinning limiting structure comprises a deep groove portion 523 and a shallow groove portion 524 which are axially arranged at intervals at the lower part of the peripheral wall of the lower rod portion 52, a convex rib portion 511 which is axially arranged at the bottom of the peripheral wall of the upper rod portion 51, and a ring-shaped member 4 which is sleeved at the lower part of the lower rod portion 52. One bead portion 511 is provided above each deep groove portion 523 or each shallow groove portion 524, and the bottom surface of each bead portion 511 is a guide slope 512. The annular member 4 is formed with two positioning posts 40 on its inner wall and pressed against the lower edge of the through hole 121 by a pressing cover 54 penetrating the valve rod 5. The positioning post 40 can slide in the deep groove portion 523 and the shallow groove portion 524, and the positioning post 40 can move from the deep groove portion 523 to the next adjacent shallow groove portion 524 or from the shallow groove portion 524 to the next adjacent deep groove portion 523 by the guide slope 512. When the positioning post 40 is located in the deep groove portion 523, the valve port is closed, and when the positioning post 40 is located in the shallow groove portion 524, the valve port is opened.

As shown in fig. 9, in use, the vent tube 32 of the first inflation port 111 and the second inflation port 112 is pushed into the inner bladder 01, the outer peripheral wall of the lower air chamber 103 is pushed into the outer bladder 02 from the inflation ports, and then the inner casing 12 is screwed into the outer casing 11, so that inflation and deflation can be started. The above-mentioned usage is not a usage of the embodiment of the present invention, and the vent tube 32 of the first inflation port 111 and the second inflation port 112 and the peripheral wall of the lower air chamber 103 may be squeezed into the bag body from the inflation ports.

The working principle of the inflation valve is as follows: as shown in fig. 4-9, in a normal state, the positioning column 40 is located in the deep groove portion 523, and at this time, the valve rod 5 always keeps moving upward due to the action of the spring 7, the first valve sheet 50 closes the first valve port 21, the second valve sheet 60 closes the second valve port 22, and the upper air chamber 101, the middle air chamber 102, and the lower air chamber 103 are respectively closed. When inflation or exhaust is needed, the valve cover 9 is removed, the inflation equipment will push the valve rod 5 open, so that the valve rod 5 moves downwards against the elastic action of the spring 7, the first valve plate 50 leaves the first valve port 21, the second valve plate 60 leaves the second valve port 22, the positioning column 40 leaves the deep groove portion 523, contacts with the rib portion 511 axially arranged at the bottom of the peripheral wall of the upper rod portion 51, and is guided to the next adjacent shallow groove portion 524 through the guiding inclined surface 512. At this time, after the hand is released, the positioning column 40 is placed in the shallow groove portion 524, the first valve plate 50 and the second valve plate 60 are stabilized at the corresponding positions, the valve ports are kept in the open state, and the upper air chamber 101, the middle air chamber 102 and the lower air chamber 103 are communicated, so that the inflation and exhaust processes are realized.

Claims

1. An inflation valve comprises a valve casing (1) and an inflation one-way valve core assembly which is positioned in the valve casing (1) and opens and closes the valve port, and is characterized in that the valve port comprises a first valve port (21) and a second valve port (22), the interior of the valve casing (1) is sequentially divided into an upper air chamber (101), a middle air chamber (102) and a lower air chamber (103) from top to bottom, the first valve port (21) is communicated with the upper air chamber (101) and the middle air chamber (102), the second valve port (22) is communicated with the middle air chamber (102) and the lower air chamber (103), the middle air chamber (102) is provided with an inflation end capable of inflating an inner bag body (01), the lower air chamber (103) is provided with an inflation end capable of inflating an outer bag body (02), and the inflation one-way valve core assembly can simultaneously open and close the first valve port (21) and the second valve port;

the valve casing (1) comprises an outer casing (11) and an inner casing (12), wherein the inner casing (12) is screwed in a cavity of the outer casing (11); the first valve port (21) is arranged at the reducing position in the middle of the inner shell (12), and the second valve port (22) is arranged at the bottom edge of the inner shell (12); a first inflation inlet (111) and a second inflation inlet (112) which are communicated with the middle air chamber (102) are respectively formed at the left end and the right end of the shell (11); the first inflation port (111) and the second inflation port (112) are connected with a vent pipe (32) through connecting sleeves (31).

2. The inflation valve according to claim 1, wherein a second axial strip-shaped hole (120) in a grid shape is annularly arranged at a position where the peripheral wall of the inner shell (12) coincides with the first inflation port (111) and the second inflation port (112); the bottom of the circumferential wall of the shell (11) in the lower air chamber (103) is annularly provided with a first axial strip-shaped hole (110) in a grid shape.

3. The inflation valve of claim 1, wherein the inflation one-way valve core assembly comprises a valve rod (5) and a valve seat (6) arranged on the bottom surface of the valve rod (5), a through hole (121) is formed in the upper air chamber (101), the through hole (121) is connected to the inner wall of the inner shell (12) through a connecting rib (122), the valve rod (5) is movably arranged in the through hole (121) in a penetrating manner, and a first valve plate (50) is formed at the bottom of the valve rod; the valve rod (5) is sleeved with a spring (7) which enables the valve rod (5) to keep moving upwards, the surface of the valve rod (5) is provided with a ball pen type spinning positioning mechanism which can convert single linear motion of the valve rod (5) into linear motion and circular motion of the valve rod (5), and the position of the valve rod (5) in the through hole (121) can be locked under the matching action of the spring (7) and the ball pen type spinning positioning mechanism under the opening and closing state of a valve port; the shaping of disk seat (6) upper end has shelf (61) of being connected with first valve block (50), the shaping of disk seat (6) lower extreme has second valve block (60), shelf (61) with connect through connecting pipe (62) between second valve block (60).

4. The inflation valve of claim 3, characterized in that a first sealing ring (81) capable of closely matching with the inner hole wall of the first valve port (21) is embedded between the first valve plate (50) and the shelf (61), an annular embedded groove is arranged on the periphery of the second valve plate (60), and a second sealing ring (82) capable of closely matching with the inner hole wall of the second valve port (22) is arranged in the annular embedded groove.

5. The inflation valve of claim 4, wherein the valve rod (5) comprises a hollow upper rod part (51), a lower rod part (52) inserted in the upper rod part (51) and an annular limiting cover (53), a protruding part (521) protruding from the upper end surface of the upper rod part (51) is formed at the top of the lower rod part (52), and the limiting cover (53) is sleeved on the protruding part (521); the spring (7) is arranged between the limiting cover (53) and the through hole (121); a step part (531) for limiting the axial movement of the lower rod part (52) relative to the limiting cover (53) is formed on the inner wall of the limiting cover (53), and a diameter-changing part (522) matched with the step part (531) is arranged on the surface of the protruding part (521); the upper rod part (51) comprises a connecting hole (510) with a square cross section, a square rod part (520) matched with the connecting hole (510) is formed on the surface of the lower rod part (52), and the connecting hole (510) can limit the circular motion of the lower rod part (52) relative to the upper rod part (51).

6. The inflation valve according to claim 4, wherein the ball pen type spinning limiting structure comprises a deep groove part (523) and a shallow groove part (524) which are axially arranged at intervals at the lower part of the peripheral wall of the lower rod part (52), a convex rib part (511) which is axially arranged at the bottom of the peripheral wall of the upper rod part (51), and a ring part (4) which is sleeved at the lower part of the lower rod part (52); two positioning columns (40) which are arranged oppositely are formed on the inner wall of the annular piece (4), and the positioning columns (40) can slide in the deep groove part (523) and the shallow groove part (524); each deep groove part (523) or each shallow groove part (524) is provided with a corresponding convex rib part (511), the bottom surface of each convex rib part (511) is a guide inclined surface (512), and the guide inclined surface (512) can guide the positioning column (40) to the next adjacent shallow groove part (524) or guide the positioning column (40) from the shallow groove part (524) to the next adjacent deep groove part (523); when the positioning column (40) is positioned in the deep groove part (523), the inflation check valve core assembly closes the valve port, and when the positioning column (40) is positioned in the shallow groove part (524), the inflation check valve core assembly opens the valve port.

7. An inflation valve according to claim 6, characterised in that the annular element (4) is pressed against the lower edge of the through-hole (121) by a gland (54) fitted around the periphery of the through-hole (121).

8. The inflation valve of claim 3, wherein a valve cover (9) capable of shielding the upper air chamber (101) is detachably connected in the upper air chamber (101), the lower part of the valve cover (9) is provided with a downwardly extending annular wall (91), two clamping grooves (911) are formed on the annular wall (91), and the clamping grooves (911) clamp the connecting ribs (122) so as to be fixedly connected with the inner shell (12).