A nozzle valve for tire self-repairing fluid

Abstract

This utility model discloses a nozzle valve for tire sealant, including a valve head, a valve cover, a flexible infusion tube, and a connector. The connector, flexible infusion tube, valve head, and press valve plate are all equipped with a sealant flow channel. The connector includes a fixed head and an internally threaded head. A conical top block is provided on the bottom surface of the fixed head. The conical top block has an outlet flow channel communicating with the sealant flow channel and multiple outlet ports communicating with the outlet flow channel. An elastic skirt covers the outside of the conical top block. The top surface of the elastic skirt is fixedly connected to the bottom surface of the fixed head. An elastic ring is provided on the bottom surface of the elastic skirt, and multiple vertical ribs are fixed outside the elastic ring. When the upper edge of the vertical ribs abuts against the bottom surface of the fixed head, the elastic ring is higher than the outlet ports. This utility model, through the cooperation of the elastic skirt and the conical top block, achieves the opening of the flow channel when sealant is injected and the sealing of the sealant flow channel outlet after the connector is disconnected from the tire valve, effectively avoiding connector contamination and waste of tire sealant.

Description

Technical Field

[0001] This utility model relates to the field of valves, specifically to a nozzle valve for tire sealant. Background Technology

[0002] Tire sealant is a mixture containing various high-molecular chemical materials. It is widely applicable to various electric vehicles, motorcycles, and small and medium-sized car tires, and is particularly effective for tire punctures with a diameter of about 1-5 mm. It is an essential item to carry with you. As is well known, sealant needs to be injected into the tire valve using a nozzle valve. The nozzle valve includes a valve head mounted on the sealant bottle, a flexible plastic infusion tube connected to the valve head, and a tire valve connector connected to the flexible plastic infusion tube. During daily use and testing, it was found that after the tire valve connector is disconnected from the tire valve, some of the sealant in the flexible plastic infusion tube will automatically flow out under gravity. This not only contaminates the tire valve connector but also wastes the sealant, indicating significant room for improvement. Utility Model Content

[0003] In view of the problems existing in the background art, the purpose of this utility model is to provide a nozzle valve for tire self-sealing fluid, which effectively solves the problems existing in the background art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A tire sealant nozzle valve includes a valve head, a valve cover, a flexible infusion tube, and a connector. The valve head contains a pressing valve plate, and the valve cover is detachably fastened to the valve head. A self-sealing channel is fitted within the connector, the flexible infusion tube, the valve head, and the pressing valve plate. The connector includes a fixed head connected to the flexible infusion tube and a rotatable internally threaded head on the fixed head. A conical top block is provided on the bottom surface of the fixed head. The conical top block contains an outlet channel communicating with the self-sealing channel and multiple outlet ports communicating with the outlet channel. An elastic skirt is fitted over the conical top block. The top surface of the elastic skirt is fixedly connected to the bottom surface of the fixed head. An elastic ring is provided on the bottom surface of the elastic skirt, and multiple vertical ribs are fixed outside the elastic ring. When the upper edge of the vertical ribs abuts against the bottom surface of the fixed head, the elastic ring is higher than the outlet ports.

[0006] Furthermore, a sealing gasket is provided between the fixing head and the internal thread head.

[0007] Furthermore, the plurality of liquid outlets are evenly distributed circumferentially along the cross-section of the conical top block.

[0008] Furthermore, both the elastic skirt and the elastic ring are made of silicone rubber.

[0009] Furthermore, the plurality of vertical ribs are evenly distributed along the circumference of the elastic ring, and the shape of the vertical ribs is an inverted L-shape.

[0010] This utility model has the following beneficial technical effects:

[0011] In this invention, the elastic skirt and the conical top block work together to open the flow channel when the self-sealing fluid is injected and to close the outlet of the self-sealing fluid flow channel after the connector is disconnected from the tire valve. This effectively avoids contamination of the connector and waste of tire self-sealing fluid, and is highly practical. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0013] Figure 2 This is a schematic diagram of the internal structure of an embodiment of the present utility model;

[0014] Figure 3 for Figure 2 A magnified view of a portion of point A in the middle. Detailed Implementation

[0015] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0016] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," and "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and 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, be constructed or operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0017] like Figure 1-3As shown in the figure, the tire self-sealing nozzle valve described in this embodiment includes a valve head 1, a valve cover 2, a flexible infusion tube 3, and a connector 4. A push valve plate 5 is provided inside the valve head 1. The valve head 1, valve cover 2, and push valve plate 5 are all made of plastic. The valve cover 2 is detachably fastened to the valve head 1. It can be removed when in use and covered when not in use. One side of the push valve plate 5 is fixedly connected to the valve head 1. The bottom surface of the push valve plate 5 has an inlet 6 that matches the push-type liquid outlet of the self-sealing liquid cylinder. When the push valve plate 5 is pressed, the self-sealing liquid enters the inlet 6 through the push-type liquid outlet and then exits the valve head 1.

[0018] The connector 4, flexible infusion tube 3, valve head 1, and press valve plate 5 are equipped with self-replenishing fluid channels. The flexible infusion tube 3 is made of PVC. The connector 4 includes a fixed head 7 connected to the flexible infusion tube 3 and a rotatable internal thread head 8 mounted on the fixed head 7. Specifically, the fixed head 7 and the internal thread head 8 are connected by their respective annular edges. A sealing gasket 9 is also provided between the annular edges of the fixed head 7 and the internal thread head 8. A conical top block 10 is provided on the bottom surface of the fixed head 7. The bottom surface of the conical top block 10 is hemispherical. The conical top block 10 is equipped with an outlet channel 11 that communicates with the self-replenishing fluid channel and multiple outlet ports that communicate with the outlet channel 11. 12. Multiple liquid outlets 12 are evenly distributed circumferentially along the cross-section of the conical top block 10. The conical top block 10 is covered with an elastic skirt 13. The top surface of the elastic skirt 13 is fixedly connected to the bottom surface of the fixed head 7. An elastic ring 14 is provided on the bottom surface of the elastic skirt 13. Both the elastic skirt 13 and the elastic ring 14 are made of silicone rubber. Four vertical ribs 15 are also fixedly provided on the outside of the elastic ring 14. Multiple vertical ribs 15 are evenly distributed circumferentially along the elastic ring 14. The shape of the vertical ribs 15 is an inverted L-shape. When the upper edge of the vertical ribs 15 abuts against the bottom surface of the fixed head 7, the elastic ring 14 is higher than the liquid outlet 12. Under natural conditions, the elastic ring 14 is lower than the liquid outlet 12 due to the contraction of the elastic ring 14.

[0019] The working principle of this embodiment is as follows:

[0020] In use, screw the internal thread head 8 onto the tire valve 16. As the internal thread head 8 is screwed in, the conical top block 10 pushes downwards against the core rod 17 inside the tire valve 16, and the tire valve 16 pushes upwards against the vertical rib 15 until the upper edge of the vertical rib 15 presses against the bottom surface of the fixing head 7. At this time, the elastic ring 14 is higher than the liquid outlet 12, and the outlet of the self-filling liquid channel is opened. Remove the valve cover 2, press the pressing valve plate 5, and the self-filling liquid is poured into the tire valve 16 and the tire through the self-filling liquid channel. After the filling is completed, release the pressing valve plate 5, cover the valve cover 2, and screw off the internal thread head 8. As the internal thread head 8 is screwed out, the conical top block 10 rises, and the elastic ring 14 naturally contracts. Under the action of elasticity, the vertical rib 15 descends and the elastic skirt 13 moves down. After the internal thread head 8 is completely screwed down, the elastic ring 14 is lower than the outlet 12, and the elastic skirt 13 closes the outlet 12. The self-sealing fluid is retained in the flexible infusion tube 3 and the conical top block 10 and will not come into contact with air. It can be injected into the tire again when used next time. Compared with the prior art, this embodiment realizes the opening of the flow channel when injecting self-sealing fluid and the closure of the outlet of the self-sealing fluid flow channel after the connector 4 is disconnected from the tire valve 16 through the cooperation of the elastic skirt 13 and the conical top block 10. It can effectively avoid the contamination of the connector 4 and the waste of tire self-sealing fluid, and has strong practicality.

[0021] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A nozzle valve for tire sealant application, comprising a valve head, a valve cover, a flexible infusion tube, and a connector, wherein a pressing valve plate is disposed within the valve head, the valve cover is detachably fastened to the valve head, and a sealant flow channel is provided within the connector, the flexible infusion tube, the valve head, and the pressing valve plate, characterized in that, The connector includes a fixed head connected to the flexible infusion tube and a rotatable internally threaded head on the fixed head. A conical top block is provided on the bottom surface of the fixed head. The conical top block is provided with an outlet channel communicating with the self-replenishing fluid channel and multiple outlets communicating with the outlet channel. An elastic skirt is fitted over the conical top block. The top surface of the elastic skirt is fixedly connected to the bottom surface of the fixed head. An elastic ring is provided on the bottom surface of the elastic skirt. Multiple vertical ribs are also fixed outside the elastic ring. When the upper edge of the vertical ribs abuts against the bottom surface of the fixed head, the elastic ring is higher than the outlet.

2. The tire self-servicing liquid injection nozzle valve according to claim 1, wherein A sealing gasket is provided between the fixed head and the internal threaded head.

3. The tire self-servicing liquid nozzle valve according to claim 1, wherein, The multiple liquid outlets are evenly distributed circumferentially along the cross-section of the conical top block.

4. The tire sealant nozzle valve according to claim 1, characterized in that, Both the elastic skirt and the elastic ring are made of silicone rubber.

5. The tire self-servicing liquid injection nozzle valve according to claim 1, wherein The plurality of vertical ribs are evenly distributed along the circumference of the elastic ring, and the shape of the vertical ribs is an inverted L-shape.

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