A quick-plug inflator nozzle

Abstract

The present invention belongs to the technical field of tire inflation tools, and in particular, relates to a quick-plug inflation nozzle, comprising a valve sleeve having a cavity therein, an insertion port connected to the cavity at the upper end, and a connection port connected to the cavity at the lower end; a valve core assembly arranged in the cavity of the valve sleeve; a connector, one end of which is connected to the connection port of the valve sleeve, and is used to restrict the valve core assembly in the valve sleeve; the valve sleeve cavity, the inner cavity of the valve core assembly, and the inner cavity of the connector form a diversion channel; wherein, it also includes a locking assembly, which is arranged on the valve sleeve and is used to lock the tire air nozzle on the valve sleeve after the tire air nozzle is embedded in the valve sleeve and docked with the valve core assembly. Since the tire air nozzle docks with the valve core assembly after passing through the insertion port of the valve sleeve, in order to avoid looseness between the tire air nozzle and the valve core assembly when inflating, a locking assembly is provided for this purpose, and the tire air nozzle is locked on the valve sleeve by the locking assembly.

Description

Technical Field

[0001] The invention belongs to the technical field of tire inflation tools, and in particular relates to a quick-plug inflation nozzle. Background Art

[0002] The tire inflation nozzle is mainly used to inflate automobiles and other vehicles. The current tire inflation nozzle generally includes a valve sleeve and a valve core. The valve core is accommodated in the valve sleeve, and the valve core is connected to a high-pressure air source. A wrench-type locking mechanism is provided on the valve sleeve. When in use, the port of the valve sleeve is aligned with the air nozzle of the tire, and the wrench-type locking mechanism is turned to lock the entire tire inflation nozzle on the air nozzle. Then, the air source switch is turned on to inflate the tire. The current inflation nozzle adopts a wrench-type locking mechanism, and the inflation nozzle is locked by cooperating with the external thread of the wrench-type locking mechanism and the tire air nozzle. The wrench-type locking mechanism is clamped with the tire air nozzle on one side, which is cumbersome to operate during use and is prone to problems such as wear and failure to lock. Summary of the invention

[0003] The purpose of the present invention is to provide an inflation nozzle that can be quickly plugged in and out in order to solve the above-mentioned technical problems. The inflation nozzle is easy to operate and has a self-locking function. The inflation nozzle can be inserted into the tire air nozzle by pressing with external force, and the tire air nozzle will be automatically locked after the force is released. After locking, the inflation nozzle is very firm, not easy to loosen, and will not leak.

[0004] In view of this, the present invention provides a quick-plug inflator nozzle, which includes:

[0005] A valve sleeve has a cavity therein, an insertion port communicating with the cavity is opened at the upper end, and a connection port communicating with the cavity is opened at the lower end;

[0006] A valve core assembly is arranged in the cavity of the valve sleeve;

[0007] A connector, one end of which is connected to a connecting port of the valve sleeve and is used to restrict the valve core assembly in the valve sleeve;

[0008] The valve sleeve cavity, the inner cavity of the valve core assembly and the inner cavity of the connector form a diversion channel; wherein, it also includes a locking assembly, which is arranged on the valve sleeve and is used to lock the tire air nozzle on the valve sleeve after the tire air nozzle is embedded in the valve sleeve and docked with the valve core assembly.

[0009] In the present technical solution, when in use, the valve sleeve is put on the tire air nozzle, and the valve core assembly is pressed against the tire air nozzle, and then the inflation device is turned on, and the gas is inflated into the valve core assembly through the connecting head, and the tire air nozzle is inflated through the output port at the upper end of the valve core assembly.

[0010] Since the tire air nozzle is connected to the valve core assembly after passing through the insertion port of the valve sleeve, a locking assembly is provided to prevent looseness between the tire air nozzle and the valve core assembly when inflating the tire. The locking assembly is used to lock the tire air nozzle on the valve sleeve.

[0011] In the above technical solution, further, a mounting port communicating with the cavity is provided on the side wall of the valve sleeve, and the locking assembly includes:

[0012] The pressing part is partially embedded in the valve sleeve, and its embedded end passes through the installation port and leads to the cavity. The pressing part has a through hole opened in the vertical direction, the upper end of the through hole is connected to the insertion port, and the lower end of the through hole is connected to the inner cavity of the valve core assembly;

[0013] A locking spring, one end of which is arranged at the embedded end of the pressing part, and the other end is arranged at the inner wall of the cavity, exerting an elastic force to push the pressing part outward;

[0014] In the normal state, the locking spring pushes the pressing part to move outward, and the central axis of the through hole is offset toward the installation port, so as to lock the tire valve inserted into the through hole;

[0015] By pressing the pressing portion, the locking spring contracts, and the central axis of the through hole is offset in a direction away from the mounting port, so as to separate the inner wall of the through hole from the tire valve.

[0016] In the present technical scheme, some existing structures for locking tire air nozzles are relatively complex and easy to operate. For this purpose, the present invention provides a new locking assembly, which includes a pressing portion and a locking spring; the tire air nozzle first passes through the insertion port of the valve sleeve, then passes through the through hole of the pressing portion, and finally docks with the valve core assembly. Since the locking spring has an outward thrust on the pressing portion, the through hole on the pressing portion will be offset. During the offset process, the inner wall of the through hole close to the locking spring will gradually approach the tire air nozzle and gradually press against the tire air nozzle, thereby making it impossible for the tire air nozzle to separate from the valve sleeve and the valve core assembly; when the inflation nozzle needs to be pulled out, it is only necessary to press the pressing portion. In the process of squeezing the locking spring, the inner wall of the through hole pressed against the tire air nozzle will gradually separate from the tire air nozzle. After complete separation, the tire air nozzle can be separated from the inflation nozzle by pulling the entire inflation nozzle outward, which is very convenient.

[0017] In any of the above technical solutions, further, there is an annular flange arranged radially inward on the inner wall of the connecting head; the valve core assembly includes a valve core, whose lower end has an inner cavity opened upward, and whose upper end has an air hole connected to the inner cavity; and a sealing spring, one end of which is tightly pressed against the lower end of the valve core and the other end is tightly pressed against the annular flange, and is used to drive the valve core to move upward so that its upper end is tightly pressed against the lower end of the pressing part.

[0018] In the present technical solution, in order to improve the sealing performance between the valve core and the tire air nozzle, a sealing spring is provided. After the tire air nozzle passes through the through hole and is locked by the pressing part, the sealing spring will exert an upward thrust on the valve core, causing the valve core to move upward and firmly press against the tire air nozzle, thereby preventing gas from leaking out through the gap during inflation.

[0019] In any of the above technical solutions, further, a first installation groove is opened at the upper end of the valve core, and the first installation groove is an annular groove, and an annular sealing sleeve is arranged in the annular groove.

[0020] In the technical solution, an annular sealing sleeve is provided to improve the sealing performance between the tire valve and the valve core.

[0021] In any of the above technical solutions, further, a sealing ring is sleeved on the outer wall of the valve core, and the outer wall of the sealing ring is pressed tightly against the inner wall of the connector.

[0022] In the present technical solution, a sealing ring is provided to improve the sealing performance between the valve core and the connector.

[0023] In any of the above technical solutions, further, a second mounting groove covering the lower end of the through hole is opened on the lower end surface of the pressing portion, and the sealing spring drives the valve core to move upward so that its upper end is embedded in the second mounting groove.

[0024] In the present technical solution, when not inflated, in order to prevent the pressing part from being directly pulled out from the mounting port under a large external force, a second mounting groove is provided on the pressing part, and the upper end of the valve core assembly is arranged in the second mounting groove to restrict the pressing part.

[0025] In any of the above technical solutions, further, the upper port of the through hole is provided with a chamfer, and the chamfer forms a guide surface.

[0026] In the present technical solution, under normal circumstances, the locking spring pushes the pressing part to move outward, causing the central axis of the through hole to shift toward the mounting port, making it impossible for the tire valve to be directly embedded in the through hole. Therefore, it is necessary to press the pressing part so that the through hole shifts a certain distance away from the mounting port before the tire valve can be inserted into the through hole. In order to facilitate quick insertion, a chamfer is provided at the upper port of the through hole, and the chamfer forms a guide surface. In the process of using external force to put the valve sleeve on the tire valve, the pressing part can be pushed to move inward automatically under the action of the guide surface, thereby realizing that the tire valve can be inserted into the through hole without pressing the pressing part.

[0027] In any of the above technical solutions, further, a third installation groove is provided on the inner wall of the cavity, and one end of the locking spring provided on the inner wall of the cavity is embedded in the third installation groove.

[0028] In the present technical solution, the third installation groove is provided to facilitate the installation of the locking spring.

[0029] In any of the above technical solutions, further, the connector is threadedly connected to the connecting port of the valve sleeve, and the other end is a threaded connection end or a bamboo end directly connected to the hose.

[0030] In the present technical solution, the connector is connected to the valve sleeve by means of a threaded connection to facilitate assembly and disassembly; the other end of the connector is configured as a threaded connection end or a bamboo end to facilitate installation with different joints.

[0031] The beneficial effects of the present invention are:

[0032] 1. In order to prevent the tire nozzle and the valve core assembly from loosening when inflating, a locking assembly is provided to lock the tire nozzle on the valve sleeve through the locking assembly.

[0033] 2. In order to improve the sealing performance between the valve core and the tire valve, a sealing spring is provided. After the tire valve passes through the through hole and is locked by the pressing part, the sealing spring will have an upward thrust on the valve core, so that the valve core moves upward and is firmly pressed against the tire valve, thereby preventing gas from leaking out through the gap during inflation.

[0034] In order to prevent the pressing part from being directly pulled out from the installation port under a large external force, a first installation groove is provided on the pressing part, and the upper end of the valve core assembly is arranged in the first installation groove to restrict the pressing part. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a schematic diagram of the structure of the present invention;

[0036] Figure 2 yes Figure 1 Sectional view at AA in the middle;

[0037] Figure 3 It is a schematic diagram of the structure of the valve core of the present invention pressed against the pressing part;

[0038] Figure 4 is a schematic structural diagram of another connector of the present invention;

[0039] The reference numerals in the figure are: 100, valve sleeve; 110, cavity; 111, third mounting groove; 120, insertion port; 130, connection port; 140, mounting port; 200, valve core assembly; 210, valve core; 211, air hole; 212, first mounting groove; 213, annular sealing sleeve; 214, sealing ring; 220, sealing spring; 300, connector; 310, annular flange; 400, locking assembly; 410, pressing portion; 411, through hole; 412, second mounting groove; 413, guide surface; 420, locking spring. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0041] In the description of the present application, it should be noted that the terms used herein are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. For ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0042] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0043] It should be noted that, in the description of the present application, the orientation or positional relationship indicated by terms such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise stated, these orientation words do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present application; the orientation words "inside and outside" refer to the inside and outside relative to the contour of each component itself.

[0044] It should be noted that, in the present application, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises one..." does not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be noted that the scope of the method and device in the embodiment of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0045] Embodiment 1:

[0046] like Figure 1 and Figure 2 As shown, this embodiment provides a quick-plug inflator nozzle, which includes:

[0047] The valve sleeve 100 has a cavity 110 therein, and an insertion port 120 communicating with the cavity 110 is opened at the upper end, and a connection port 130 communicating with the cavity 110 is opened at the lower end;

[0048] The valve core assembly 200 is disposed in the cavity 110 of the valve sleeve 100;

[0049] A connector 300 , one end of which is connected to the connecting port 130 of the valve sleeve 100 , and is used to restrict the valve core assembly 200 in the valve sleeve 100 ;

[0050] The cavity 110 of the valve sleeve 100, the inner cavity of the valve core assembly 200 and the inner cavity of the connector 300 form a diversion channel; wherein, it also includes a locking assembly 400, which is arranged on the valve sleeve 100 and is used to lock the tire air valve on the valve sleeve 100 after the tire air valve is embedded in the valve sleeve 100 and docked with the valve core assembly 200.

[0051] In the present technical solution, when in use, the valve sleeve 100 is put on the tire air nozzle, and the valve core assembly 200 is pressed against the tire air nozzle, and then the inflation device is turned on, and the gas is inflated into the valve core assembly 200 through the connector 300, and the tire air nozzle is inflated through the output port at the upper end of the valve core assembly 200.

[0052] Since the tire air nozzle passes through the insertion port 120 of the valve sleeve 100 and docks with the valve core assembly 200, in order to avoid looseness between the tire air nozzle and the valve core assembly 200 when inflating, a locking assembly 400 is provided to lock the tire air nozzle on the valve sleeve 100.

[0053] like Figure 2 As shown, in this embodiment, further, a mounting port 140 communicating with the cavity 110 is provided on the side wall of the valve sleeve 100, and the locking assembly 400 includes:

[0054] The pressing part 410 is partially embedded in the valve sleeve 100, and its embedded end passes through the installation port 140 and leads to the cavity 110. The pressing part 410 has a through hole 411 opened in the vertical direction. The upper end of the through hole 411 is connected to the insertion port 120, and the lower end of the through hole 411 is connected to the inner cavity of the valve core assembly 200.

[0055] A locking spring 420, one end of which is disposed at the embedded end of the pressing portion 410, and the other end of which is disposed at the inner wall of the cavity 110, and has an elastic force to push the pressing portion 410 outward;

[0056] In the normal state, the locking spring 420 pushes the pressing portion 410 to move outward, and the central axis of the through hole 411 is offset toward the mounting port 140, so as to lock the tire valve inserted into the through hole 411;

[0057] By pressing the pressing portion 410 , the locking spring 420 contracts, and the central axis of the through hole 411 deviates in a direction away from the mounting port 140 , so as to separate the inner wall of the through hole 411 from the tire valve.

[0058] In the present technical solution, some existing structures for locking tire valves are relatively complex and inconvenient to operate. For this purpose, the present invention provides a new locking assembly 400, which includes a pressing portion 410 and a locking spring 420; the tire valve first passes through the insertion port 120 of the valve sleeve 100, then passes through the through hole 411 of the pressing portion 410, and finally docks with the valve core assembly 200. Since the locking spring 420 has an outward thrust on the pressing portion 410, the through hole 411 on the pressing portion 410 will be offset. During the shifting process, the inner wall of the through hole 411 close to the locking spring 420 will gradually approach the tire air nozzle and gradually press against the tire air nozzle, so that the tire air nozzle cannot be separated from the valve sleeve 100 and the valve core assembly 200; when the inflation nozzle needs to be pulled out, it is only necessary to press the pressing portion 410. In the process of squeezing the locking spring 420, the inner wall of the through hole 411 pressed against the tire air nozzle will gradually separate from the tire air nozzle. After complete separation, the tire air nozzle can be separated from the inflation nozzle by pulling the entire inflation nozzle outward, which is very convenient.

[0059] like Figure 2 As shown, in the present embodiment, further, there is an annular flange 310 radially inwardly arranged on the inner wall of the connecting head 300; the valve core assembly 200 includes a valve core 210, whose lower end has an inner cavity opened upward, and the upper end has an air hole 211 connected to the inner cavity; and a sealing spring 220, one end of which is tightly pressed against the lower end of the valve core 210, and the other end is tightly pressed against the annular flange 310, and is used to drive the valve core 210 to move upward so that its upper end is tightly pressed against the lower end of the pressing portion 410.

[0060] In the present technical solution, in order to improve the sealing performance between the valve core 210 and the tire air valve, a sealing spring 220 is provided. After the tire air valve passes through the through hole 411 and is locked by the pressing portion 410, the sealing spring 220 will exert an upward thrust on the valve core 210, causing the valve core 210 to move upward and firmly press against the tire air valve, thereby preventing gas from leaking out through the gap during inflation.

[0061] Embodiment 2:

[0062] This embodiment provides a quick-plug and pull-out inflation nozzle, which, in addition to the technical solutions of the above-mentioned embodiments, also has the following technical features.

[0063] like Figure 2 As shown, in this embodiment, a first mounting groove 212 is formed at the upper end of the valve core 210 . The first mounting groove 212 is an annular groove, and an annular sealing sleeve 213 is disposed in the annular groove.

[0064] In the present technical solution, the annular sealing sleeve 213 is provided to improve the sealing performance between the tire valve and the valve core 210 .

[0065] In this embodiment, further, a sealing ring 214 is sleeved on the outer wall of the valve core 210 , and the outer wall of the sealing ring 214 is pressed tightly against the inner wall of the connector 300 .

[0066] In the present technical solution, a sealing ring 214 is provided to improve the sealing performance between the valve core 210 and the connector 300 .

[0067] Embodiment 3:

[0068] This embodiment provides a quick-plug and pull-out inflation nozzle, which, in addition to the technical solutions of the above-mentioned embodiments, also has the following technical features.

[0069] like Figure 2 and Figure 3 As shown, in this embodiment, a second mounting groove 412 covering the lower end of the through hole 411 is formed on the lower end surface of the pressing portion 410 , and the sealing spring 220 drives the valve core 210 to move upward so that its upper end is embedded in the second mounting groove 412 .

[0070] In the present technical solution, when not inflated, in order to prevent the pressing portion 410 from being directly pulled out from the mounting port 140 under a large external force, a second mounting groove 412 is provided on the pressing portion 410, and the upper end of the valve core assembly 200 is disposed in the second mounting groove 412 to restrict the pressing portion 410.

[0071] Embodiment 4:

[0072] This embodiment provides a quick-plug and pull-out inflation nozzle, which, in addition to the technical solutions of the above-mentioned embodiments, also has the following technical features.

[0073] like Figure 3 As shown, in this embodiment, the upper end of the through hole 411 is provided with a chamfer, and the chamfer forms a guide surface 413 .

[0074] In the present technical solution, under normal conditions, the locking spring 420 pushes the pressing portion 410 to move outward, causing the central axis of the through hole 411 to shift toward the mounting port 140, so that the tire valve cannot be directly embedded in the through hole 411. Therefore, it is necessary to press the pressing portion 410 so that the through hole 411 shifts a certain distance away from the mounting port 140 before the tire valve can be inserted into the through hole 411. To facilitate quick insertion, a chamfer is provided at the upper end of the through hole 411, and the chamfer forms a guide surface 413. In the process of using external force to sleeve the valve sleeve 100 on the tire valve, the pressing portion 410 can be pushed to move inward automatically under the action of the guide surface 413, thereby realizing that the tire valve can be inserted into the through hole 411 without pressing the pressing portion 410.

[0075] Embodiment 5:

[0076] This embodiment provides a quick-plug and pull-out inflation nozzle, which, in addition to the technical solutions of the above-mentioned embodiments, also has the following technical features.

[0077] like Figure 2 As shown, in this embodiment, a third installation groove 111 is further provided on the inner wall of the cavity 110 , and one end of the locking spring 420 disposed on the inner wall of the cavity 110 is embedded in the third installation groove 111 .

[0078] In the present technical solution, the third installation groove 111 is provided to facilitate the installation of the locking spring 420 .

[0079] Embodiment 5:

[0080] This embodiment provides a quick-plug and pull-out inflation nozzle, which, in addition to the technical solutions of the above-mentioned embodiments, also has the following technical features.

[0081] like Figure 1 and Figure 4 As shown, in this embodiment, the connector 300 is threadedly connected to the connection port 130 of the valve sleeve 100, and the other end is a threaded connection end or a bamboo end directly connected to the hose.

[0082] In the present technical solution, the connector 300 is connected to the valve sleeve 100 by means of a threaded connection to facilitate assembly and disassembly; the other end of the connector 300 is configured as a threaded connection end or a bamboo end to facilitate installation with different joints.

[0083] The embodiments of the present application are described above in conjunction with the accompanying drawings. In the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A quick-plug inflator nozzle, characterized in that: include: A valve sleeve (100) having a cavity (110) therein, an insertion port (120) communicating with the cavity (110) being provided at an upper end, and a connection port (130) communicating with the cavity (110) being provided at a lower end; A valve core assembly (200) is arranged in the cavity (110) of the valve sleeve (100); A connector (300), one end of which is connected to a connection port (130) of the valve sleeve (100) and is used to restrict the valve core assembly (200) within the valve sleeve (100); The cavity (110) of the valve sleeve (100), the inner cavity of the valve core assembly (200), and the inner cavity of the connector (300) form a flow guide channel; wherein, a locking assembly (400) is also included, which is arranged on the valve sleeve (100) and is used to lock the tire air nozzle on the valve sleeve (100) after the tire air nozzle is embedded in the valve sleeve (100) and docked with the valve core assembly (200); A mounting port (140) communicating with the cavity (110) is provided on the side wall of the valve sleeve (100), and the locking assembly (400) comprises: A pressing portion (410) is partially embedded in the valve sleeve (100), and its embedded end passes through the installation port (140) and leads to the cavity (110); a through hole (411) is provided on the pressing portion (410) along a vertical direction, an upper end of the through hole (411) is connected to the insertion port (120), and a lower end of the through hole (411) is connected to the inner cavity of the valve core assembly (200); A locking spring (420), one end of which is arranged at the embedded end of the pressing portion (410), and the other end of which is arranged at the inner wall of the cavity (110), and has an elastic force to push the pressing portion (410) outwards; Wherein, under normal conditions, the locking spring (420) pushes the pressing portion (410) to move outward, and the central axis of the through hole (411) is offset toward the mounting port (140), so as to lock the tire valve inserted into the through hole (411); The pressing portion (410) is pressed, the locking spring (420) contracts, and the central axis of the through hole (411) is offset in a direction away from the mounting port (140), so as to separate the inner wall of the through hole (411) from the tire valve; The connector (300) is threadedly connected to the connection port (130) of the valve sleeve (100), and the other end is a threaded connection end or a bamboo end directly connected to a hose.

2. A quick-plug inflator nozzle according to claim 1, characterized in that: The inner wall of the connector (300) is provided with an annular flange (310) which is radially inwardly arranged; the valve core assembly (200) comprises a valve core (210) having an inner cavity opened upward at its lower end and an air hole (211) connected to the inner cavity at its upper end; and a sealing spring (220) having one end pressed against the lower end of the valve core (210) and the other end pressed against the annular flange (310) for driving the valve core (210) to move upward so that its upper end presses against the lower end of the pressing portion (410).

3. A quick-plug inflation nozzle according to claim 2, characterized in that: A first installation groove (212) is formed at the upper end of the valve core (210); the first installation groove (212) is an annular groove, and an annular sealing sleeve (213) is arranged in the annular groove.

4. A quick-plug inflator nozzle according to claim 3, characterized in that: A sealing ring (214) is also sleeved on the outer wall of the valve core (210), and the outer wall of the sealing ring (214) is tightly pressed against the inner wall of the connector (300).

5. A quick-plug inflator nozzle according to claim 4, characterized in that: The lower end surface of the pressing portion (410) is provided with a second mounting groove (412) covering the lower end of the through hole (411), and the sealing spring (220) drives the valve core (210) to move upward so that its upper end is embedded in the second mounting groove (412).

6. A quick-plug inflation nozzle according to claim 1, characterized in that: The upper end of the through hole (411) is provided with a chamfer, and the chamfer forms a guide surface (413).

7. The quick-plug inflator nozzle according to claim 1, characterized in that: A third installation groove (111) is also provided on the inner wall of the cavity (110), and one end of the locking spring (420) disposed on the inner wall of the cavity (110) is embedded in the third installation groove (111).

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