CN204784890U - A pneumatic valve for inflating product - Google Patents

Abstract

The utility model relates to an air valve for inflatable products, which comprises a valve seat (1) and a valve casing (2). The valve casing (2) has an upper air chamber (3) and a lower air chamber (4). The air chamber (3) and the lower air chamber (4) communicate with each other through the valve port (5), and the position of the valve port (5) is provided with an inflatable one-way valve core assembly, which is characterized in that: the valve seat (1) There is a stepped through hole (11) inside, and the small hole in the stepped through hole (11) is a threaded hole (61). The rest part (12) on the surface, the lower part of the valve housing (2) has a threaded connection part (21) for connecting in the threaded hole (61). A stepped through hole is set on the valve seat, and part of the valve shell can be sunk in the stepped through hole. In addition, the upper end surface of the valve seat has a ring-shaped shelving part for resting on the outer surface of the inflatable product, which further ensures that after the valve is installed, The height of the inflatable product exposed by the air valve is very low, and the inflatable product using the air valve is convenient to be curled and packaged for storage.

Description

Air valves for inflatable products

technical field

The utility model relates to an air valve for inflatable products such as inflatable sails, inflatable beds, inflatable boats or inflatable surfboards.

Background technique

Relatively large-scale equipment that needs to be inflated, such as inflatable beds and inflatable boats, are equipped with air valves. A conventional air valve includes a housing, which has a working chamber connected to the working environment and an air inlet chamber connected to the outside world. The working chamber and the air inlet chamber communicate with each other through the valve port, and a check valve is provided at the valve port. Core assembly, the one-way valve core assembly only allows air to enter the working chamber from the intake chamber.

For example, a Chinese utility model patent "A Kind of Inflatable Valve" whose patent number is ZL201120322164.8 (announcement number is CN202203458U) discloses such an inflatable valve, which includes a shell that is threadedly connected to the valve seat. And the lower air chamber, the upper air chamber and the lower air chamber communicate with each other through the valve port, and the valve port is provided with an inflatable one-way valve core assembly. The upper part is covered with an end cover covering the upper air chamber, the lower part of the casing has a threaded connection part for connecting to the valve seat, and the peripheral wall of the insertion part has two protruding clamping posts. The valve is mainly composed of a shell, an end cover, a valve seat and a one-way valve core assembly. The shell, end cover, and valve seat are stacked in sequence, resulting in a high overall height. As shown in Figure 5, it is installed on an inflatable product 10 The schematic diagram of the air valve on ’, the inflatable products using the aforementioned air valve structure are inconvenient to be stored in curled packaging.

Contents of the invention

The technical problem to be solved by the utility model is to provide an air valve for inflatable products with a reduced overall height in view of the above-mentioned current state of the art. After the air valve is used on inflatable products, the exposed part of the inflatable products is very short. Inflated products using this air valve are conveniently packaged for storage.

The technical scheme adopted by the utility model to solve the above-mentioned technical problems is: an air valve for inflatable products, including a valve seat and a valve casing, and the valve casing has an upper air chamber and a lower air chamber, an upper air chamber and a lower air chamber. The chambers communicate with each other through the valve port, and the valve port is provided with an inflatable one-way valve core assembly, which is characterized in that: the valve seat has a stepped through hole, and the small hole in the stepped through hole is a threaded hole. The upper end surface of the seat has a ring-shaped resting part for resting on the outer surface of the inflatable product, and the lower part of the valve housing has a threaded connection part for connecting in the threaded hole.

The lower part of the outer periphery of the above-mentioned valve housing has an annular shoulder, which rests on the bottom surface of the large hole of the stepped through hole, and a first sealing gasket is provided between the shoulder and the bottom surface of the large hole . This structure ensures the airtightness of the joint between the valve housing and the valve seat, and effectively prevents air leakage at the two joints.

The lower end surface of the shoulder part has an annular slot, the first sealing gasket is embedded in the annular slot, and the bottom surface of the large hole of the stepped through hole has an upwardly protruding contact with the first sealing gasket. Fitting sealing ring. The annular socket has a restraining effect on the first sealing pad, and at the same time, the protruding sealing ring can be more closely in contact with the first sealing pad, and the airtightness of the joint between the valve housing and the valve seat is further enhanced.

The small hole in the above-mentioned stepped through hole is tightly equipped with a fitting, and the threaded hole is arranged on the fitting. Fittings can be made of materials different from the valve housing, such as supporting with a harder material to enhance the wear resistance of the threaded hole.

There are two protruding posts on the upper peripheral wall of the valve housing. In this way, the inflatable tube can be quickly connected to the card post on the valve housing through the L-shaped card slot on it, without additional connection of transition joints, to achieve quick insertion and removal, and to facilitate inflation. In addition, the lower part of the housing has a threaded connection, which is convenient for connection with The valve seat fixed on the inflated device (inflatable sail) is connected, so the inflation valve is particularly suitable for inflatable sails.

The above-mentioned valve casing is provided with an end cover covering the upper air chamber, and the inner peripheral wall of the end cover is provided with two spiral grooves with the same direction of rotation, and the two clamping posts can be moved along their corresponding A helical groove is screwed in. After the inflation is completed, the end cover can close the opening of the upper air chamber of the shell to better prevent air leakage. In addition, the end cover and the valve housing can be quickly and firmly connected together through the clamping column and the screw. The buckle fit of the column has the reliability of the screw connection, and at the same time has the convenience of the buckle connection of the column groove, and the spiral groove does not penetrate the side wall of the end cover, and the appearance is more beautiful.

The top wall of the end cover is provided with a second gasket, and when the end cover is connected to the valve casing, the second gasket is in close contact with the upper surface of the valve casing. The gasket further plays the role of preventing air leakage.

The above-mentioned inflatable one-way valve core assembly includes a valve stem, the lower end of the valve stem is provided with a valve plate made of flexible material, and the inner wall of the valve port is formed with cross-connecting ribs, and the valve stem is movably mounted on the connecting ribs. At the cross connection, the valve plate is located in the lower air chamber, and the valve stem located in the upper air chamber is provided with a stopper for preventing the valve stem from falling. The inflatable one-way valve core assembly has the advantages of simple structure and convenient assembly. When inflating, the valve plate is opened under the action of air pressure, and the gas enters the lower air chamber after passing through the valve port. After the inflation is completed, the valve plate is in the lower air chamber. Under the action of internal air pressure, the tendency of closing the valve port is maintained to prevent air leakage.

Compared with the prior art, the utility model has the advantages that: the valve seat is provided with a stepped through hole, and the valve casing part can be partially sunk in the stepped through hole; in addition, the upper end surface of the valve seat has a ring shape for resting on the inflatable The shelving part on the outer surface of the product further ensures that the height of the inflatable product exposed from the air valve after the air valve is installed is very low, and the inflatable product using the air valve is convenient for curling and packaging storage.

Description of drawings

Fig. 1 is the three-dimensional structure schematic diagram of the utility model embodiment;

Fig. 2 is the sectional view of the utility model embodiment;

Fig. 3 is the three-dimensional exploded view of the utility model embodiment;

Fig. 4 is a schematic structural view of an embodiment of the utility model used on an inflatable product;

Fig. 5 is a structural schematic diagram of an existing inflation valve used on an inflatable product.

Detailed ways

The utility model is described in further detail below in conjunction with the accompanying drawings.

As shown in Figures 1 to 4, it is a preferred embodiment of the present utility model.

An air valve for inflatable products, including a valve seat 1 and a valve casing 2, the valve casing 2 has an upper air chamber 3 and a lower air chamber 4, and the upper air chamber 3 and the lower air chamber 4 pass through a valve port 5 They communicate with each other, the upper air chamber 3 communicates with the inflatable equipment or the outside world, and the lower air chamber 4 communicates with the inside of the inflated equipment (inflatable sail). There is an axially penetrating channel in the valve housing 2, the upper part of the channel forms the upper air chamber 3, the lower part of the channel forms the lower air chamber 4, and the valve port 5 is located in the middle of the channel.

There is an inflatable one-way valve core assembly at the position of the valve port 5, the one-way valve core assembly includes a valve stem 9, the lower end of the valve stem 9 is provided with a valve piece 91 made of flexible material, and the valve piece 91 is integrally formed on the valve stem 9 And was umbrella-shaped. The inner wall of the valve port 5 is formed with cross-connecting ribs 51, and the valve stem 9 is movably set at the cross-connection of the connecting ribs 51. The valve plate 91 is located in the lower air chamber 4 and on the valve stem 9 in the upper air chamber 3. A blocking portion 92 for blocking the valve stem 9 from falling is provided.

A stepped through hole 11 is provided in the valve seat 1, and the small hole in the stepped through hole 11 is a threaded hole 61. The small hole in the stepped through hole 11 is tightly equipped with a fitting 6, and the threaded hole 61 is arranged on the fitting 6. The upper end surface of the valve seat 1 has an annular shelving portion 12 for resting on the outer surface of the inflatable product 10, the shelving portion 12 is located at the top of the stepped through hole 11, and the lower part of the valve housing 2 has a threaded hole 61 for connecting Threaded connection 21. The lower part of the outer periphery of the valve casing 2 has an annular shoulder 22, which rests on the bottom surface of the large hole of the stepped through hole 11, and is provided between the shoulder 22 and the bottom surface of the large hole. The first gasket 7a. The lower end surface of the shoulder portion 22 has an annular socket 221, the first sealing gasket 7a is embedded in the annular socket 221, and the bottom surface of the large hole portion of the stepped through hole 11 has an upwardly protruding contact with the first sealing gasket 7a. Contact the mating seal ring 111 .

There are two protruding posts 23 on the upper peripheral wall of the valve housing 2 . The valve casing 2 is provided with an end cover 8 covering the upper air chamber 3. The inner peripheral wall of the end cover 8 is provided with two spiral grooves 81 with the same rotation direction. A helical groove 81 is screwed into. A second gasket 7b is provided on the top wall of the end cover 8 , and when the end cover 8 is connected to the valve casing 14 , the second gasket 7b is in close contact with the upper surface of the valve casing 2 .

Although the preferred embodiments of the present invention have been described in detail above, it should be clearly understood that various modifications and variations of the present invention will occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims (8)

1. An air valve for inflatable products, comprising a valve seat (1) and a valve casing (2), the valve casing (2) has an upper air chamber (3) and a lower air chamber (4), the upper air chamber (3) and the lower air chamber (4) communicate with each other through the valve port (5), and the position of the valve port (5) is provided with an inflatable one-way valve core assembly, which is characterized in that: the valve seat (1) is internally opened There is a stepped through hole (11), and the small hole in the stepped through hole (11) is a threaded hole (61). The shelving part (12), the lower part of the valve casing (2) has a threaded connection part (21) for connecting in the threaded hole (61). 2. The air valve for inflatable products according to claim 1, characterized in that: the lower part of the outer circumference of the valve casing (2) has an annular shoulder (22), and the shoulder (22) rests A first sealing gasket (7a) is provided on the bottom surface of the large hole portion of the stepped through hole (11) and between the shoulder portion (22) and the bottom surface of the large hole portion. 3. The air valve for inflatable products according to claim 2, characterized in that: the lower end surface of the shoulder (22) has an annular socket (221), and the first gasket (7a) is embedded Located in the annular slot (221), the bottom surface of the large hole portion of the stepped through hole (11) has an upwardly protruding sealing ring (111) that is in contact with the first sealing gasket (7a). 4. The air valve for inflatable products according to claim 1, characterized in that: the small hole in the stepped through hole (11) is tightly fitted with a fitting (6), and the threaded hole (61) is set at on the accessory (6). 5 . The air valve for inflatable products according to claim 1 , characterized in that: the upper peripheral wall of the valve housing ( 2 ) has two protruding posts ( 23 ). 6. The air valve for inflatable products according to claim 5, characterized in that: the valve housing (2) is covered with an end cover (8) covering the upper air chamber (3), the Two helical grooves (81) with the same direction of rotation are formed on the inner peripheral wall of the end cover (8), and the two clamping posts (13) can be screwed in respectively and simultaneously along the corresponding one of the helical grooves (81). 7. The air valve for inflatable products according to claim 6, characterized in that: the top wall of the end cover (8) is provided with a second gasket (7b), and the end cover (8) is connected to the valve In the state of being on the shell (14), the second sealing gasket (7b) is in close contact with the upper end surface of the valve shell (2). 8. The air valve for inflatable products according to any one of claims 1-7, characterized in that: the one-way valve core assembly includes a valve stem (9), and the lower end of the valve stem (9) is provided with a flexible material. The formed valve piece (91), the inner wall of the valve port (5) is formed with cross-connecting ribs (51), and the valve stem (9) is movably set at the cross-connection of the connecting ribs (51). The valve plate (91) is located in the lower air chamber (4), and the valve stem (9) in the upper air chamber (3) is provided with a blocking portion (92) for preventing the valve stem (9) from falling.