Valve core and air tap thereof

Abstract

The utility model provides a valve core which comprises a seat body and a valve element installed on the seat body, the valve element comprises a valve top and a core rod, and the core rod is detachably installed in the seat body and can partially extend out of the seat body; and the valve top is detachably connected with the core rod, so that the valve top is mounted outside the seat body. In addition, the utility model further provides an air tap.

Description

Technical Field

[0001] This utility model relates to the field of valve technology, and in particular to a valve core and its valve. Background Technology

[0002] As a core component of the valve stem, the valve core plays a crucial role in tire inflation, maintaining stable air pressure, and preventing air leakage. Currently, common valve core designs on the market typically consist of two main parts: the valve core and the seat. The valve core is the key component controlling airflow; it opens or closes the airflow passage as needed to ensure appropriate and stable air pressure inside the tire. The seat, on the other hand, is the supporting structure for the valve core, providing a stable mounting environment.

[0003] However, a common problem exists in existing valve core designs: once the valve core is installed on the valve body, it is often impossible to detach it from the valve body. While this design ensures the stability and airtightness of the valve core structure to a certain extent, it makes it inconvenient for users to clean, inspect, and replace the valve core. Utility Model Content

[0004] In view of this, this application provides a valve core and its valve nozzle to facilitate the cleaning, maintenance and replacement of the valve core.

[0005] In a first aspect, this application provides a valve core, the valve core including a seat and a valve spool mounted on the seat, the valve spool including a valve top and a spool rod, the spool rod being detachably mounted in the seat and partially extending out of the seat; the valve top being detachably connected to the spool rod, such that the valve top is mounted outside the seat.

[0006] Furthermore, the valve core includes an inflated state and a deflated state. When the valve core is in the inflated state, the valve top and the valve stem are loosely connected; when the valve core is in the deflated state, the valve top and the valve stem are tightly connected.

[0007] Furthermore, the core rod is also provided with a limiting protrusion, and the seat body is provided with a limiting groove corresponding to the limiting protrusion. The limiting groove and the limiting protrusion are engaged with each other to prevent the core rod from moving relative to the seat body during the connection and disassembly of the valve top and the core rod.

[0008] Furthermore, there are two limiting protrusions and two limiting grooves. The two limiting protrusions protrude symmetrically from the surface of the core rod. The seat body is provided with a receiving cavity and a cavity wall surrounding the receiving cavity. The cavity wall is recessed inward at the position corresponding to the limiting protrusion to form the two corresponding limiting grooves.

[0009] Furthermore, the top end of the core rod is provided with a connecting part, through which the core rod is fixed or separated from the top of the valve.

[0010] Furthermore, the outer wall of the joint is provided with external threads, and the valve top is provided with internal threads. The joint and the valve top are detachably connected together through the external and internal threads.

[0011] Furthermore, the seat body is also provided with a vent chamber communicating with the accommodating cavity; when the core rod is fastened to the valve top, the accommodating cavity and the vent chamber are not connected; when the core rod is loosely connected to the valve top, the accommodating cavity and the vent chamber are connected.

[0012] Furthermore, the bottom end of the core rod away from the joint is provided with a rod cap; the seat body is also provided with a transition cavity between the vent cavity and the receiving cavity; when the joint is fastened to the valve top, the rod cap blocks the transition cavity, so that the vent cavity and the receiving cavity are not connected; when the joint is loosely connected to the valve top, the rod cap separates from the transition cavity, so that the vent cavity and the receiving cavity are connected.

[0013] Furthermore, the seat body is also provided with a first sealing sleeve, which is located between the rod cap and the transition cavity to fill the gap between the rod cap and the transition cavity when the rod cap blocks the transition cavity.

[0014] Secondly, this application provides a valve, which includes a valve stem and a valve core connected to the valve stem.

[0015] The valve core and its nozzle described above are designed as two parts: a valve top and a valve stem. The connection between the valve stem and the valve top is designed to be detachable. Therefore, the valve stem can be easily removed from the seat by separating the valve stem and the valve top, which facilitates the cleaning, maintenance and replacement of the valve core. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the valve core provided in the embodiments of this application.

[0018] Figure 2 This is an exploded view of the valve core provided in the embodiments of this application.

[0019] Figure 3 This is a first cross-sectional view of the valve core provided in the embodiment of this application.

[0020] Figure 4 This is a second cross-sectional view of the valve core provided in the embodiments of this application.

[0021] Figure 5 This is a schematic diagram of the structure of the air nozzle provided in the embodiment of this application.

[0022] Explanation of component symbols in the attached diagram:

[0023] Valve core-1 Valve top-121

[0024] Base-11 Core Rod-122

[0025] Receptacle-111 Joint-1221

[0026] Limiting groove-1111 Rod cap-1222

[0027] Vent hole-1112 Right dihedral structure-1222a

[0028] Opening-1113 First chamfered bevel-113b

[0029] Ventilation chamber-112 Limiting protrusion-1223

[0030] Transition cavity-113 First sealing sleeve-13

[0031] Inverted dihedral structure-113a Second sealing sleeve-14

[0032] Second chamfered bevel -1222b air nozzle -100

[0033] Valve core-12, air rod-2

[0034] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application. All other embodiments obtained by those skilled in the art based on the embodiments in this application without inventive effort are within the scope of protection of this application.

[0036] The terms “first,” “second,” “third,” “fourth,” etc. (if present) in the specification, claims, and accompanying drawings of this application are used to distinguish similar planned objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data used in this way can be interchanged where appropriate; in other words, the described embodiments are implemented according to a sequence other than that illustrated or described herein. Furthermore, the terms “comprising” and “having,” and any variations thereof, may also include other content; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0037] It should be noted that the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed in this application.

[0038] Please refer to Figure 1 , Figure 1 The structure of valve core 1 is illustrated. This application provides a valve core 1, which includes a seat 11 and a valve core 12 mounted on the seat 11. The valve core 12 includes a valve top 121 and a stem 122. The stem 122 is detachably mounted within the seat 11 and can partially extend out of the seat 11. The valve top 121 is detachably connected to the stem 122, so that the valve top 121 is mounted outside the seat 11.

[0039] Please refer to the following: Figure 3 , Figure 3 The diagram illustrates the cross-sectional structure taken from the front of the valve core. The seat 11 sequentially comprises a venting chamber 112, a transition chamber 113, and a receiving chamber 111, with the dimensions of the venting chamber 112, transition chamber 113, and receiving chamber 111 decreasing sequentially. The top end of the valve core 122 has a connecting portion 1221, and the bottom end of the valve core 122, away from the connecting portion 1221, has a rod cap 1222, the size of which is larger than the size of the valve core 122. In this embodiment, the size of the venting chamber 112 is larger than the size of the rod cap 1222 to allow the valve core 122 to be inserted into or removed from the venting chamber 112. The size of the receiving chamber 111 is larger than the diameter of the valve core 122 to allow the valve core 122 to move within the receiving chamber 111.

[0040] Please refer to the following: Figure 2 , Figure 2 The structure of each component in the valve core is illustrated. The valve stem 122 is fixed to or separated from the valve top 121 via a connecting part 1221. Understandably, this application designs the valve core 12 as two parts: the valve top 121 and the valve stem 122. The connection between the valve stem 122 and the valve top 121 is designed as a detachable connection. Therefore, by separating the valve stem 122 from the valve top 121, the valve stem 122 can be easily removed from the seat 11, facilitating cleaning, maintenance, and replacement of the valve core 12. In this embodiment, the seat 11 has an opening 1113 at the end of the accommodating cavity 111 away from the vent cavity 112, allowing the connecting part 1221 to be exposed through the opening 1113. The outer wall of the connecting part 1221 has external threads, and the valve top 121 has internal threads. The connecting part 1221 and the valve top 121 are detachably connected together via the external and internal threads. Understandably, in some feasible embodiments, the joint 1221 and the valve top 121 may also be detachably connected together in other ways, which are not limited here.

[0041] Please refer to it again. Figure 3 The valve core 1 has an inflated state and a non-inflated state. When the valve core 1 is in the inflated state, the valve top 121 and the core rod 122 are loosely connected, and the rod cap 1222 is separated from the transition chamber 112, making the vent chamber 112 and the receiving chamber 111 connected. When the valve core 1 is in the non-inflated state, the valve top 121 and the core rod 122 are tightly connected, and the rod cap 1222 blocks the transition chamber 112, making the vent chamber 112 and the receiving chamber 111 disconnected. Under normal circumstances, the valve core 1 is in the non-inflated state, that is, the vent chamber 112 and the receiving chamber 111 are not connected, and the end of the vent chamber 112 away from the receiving chamber 111 is connected to the tire through the valve rod. In other words, at this time, external airflow cannot flow into the tire through the valve core. When a user needs to inflate a tire, they loosen the connection between the valve top 121 and the core rod 122 by turning the valve top 121, thereby connecting the venting chamber 112 and the receiving chamber 111. At this time, external airflow can flow through the receiving chamber 111 into the venting chamber 112, and then into the tire, thus inflating the tire. In this embodiment, the seat 11 also has a vent 1112 penetrating the receiving chamber 111, the orientation of which is perpendicular to the orientation of the opening 1113. When the user inflates the tire, external airflow flows through the vent 1112 into the receiving chamber 111, and then from the receiving chamber 111 into the venting chamber 112.

[0042] The seat 11 also includes a first sealing sleeve 13 and a second sealing sleeve 14. The first sealing sleeve 13 is located between the rod cap 1222 and the transition cavity 113 to fill the gap between the rod cap 1222 and the transition cavity 113 when the rod cap 1222 blocks the transition cavity 113. The second sealing sleeve 14 is located in the venting cavity 112 to fill the gap between the air rod 2 and the venting cavity 112 when the air rod 2 is inserted into the venting cavity 112, thereby improving the airtightness of the connection between the air rod 2 and the valve core 1. In this embodiment, the rod cap 1222 has a right dihedral structure 1222a, and the transition cavity 113 has an inverted right dihedral structure 113a at the corresponding position of the right dihedral structure 1222a. When the valve cap 1222 seals the transition cavity 113, the first sealing sleeve 13 fills the space enclosed between the right dihedral structure 1222a and the inverted right dihedral structure 113a to form an airtight structure, so that the venting cavity 112 and the receiving cavity 111 are not connected, thereby ensuring the airtightness of the valve core 1. In addition, the transition cavity 113 is provided with a first chamfered bevel 113b, and the valve cap 1222 is provided with a second chamfered bevel 1222b corresponding to the first chamfered bevel 113b. The first chamfered bevel 113b and the second chamfered bevel 1222b cooperate with each other to guide the valve cap 1222 to be inserted into the transition cavity 113 to seal the transition cavity 113.

[0043] Please refer to Figure 4 , Figure 4 The diagram illustrates the cross-sectional structure taken from the side of the valve core. The valve core 122 also has a protruding limiting protrusion 1223. The seat 11 has a limiting groove 1111 corresponding to the limiting protrusion 1223. The limiting groove 1111 and the limiting protrusion 1223 engage with each other to prevent the valve core 122 from moving relative to the seat 11 during connection and disassembly of the valve top 121 and the valve core 122, thereby ensuring the stability of the valve core 1 structure. In this embodiment, there are two limiting protrusions 1223 and two limiting grooves 1111. The two limiting protrusions 1223 protrude symmetrically from the surface of the valve core 122. The seat 11 has a receiving cavity 111 and a cavity wall surrounding the receiving cavity 111. The cavity wall of the receiving cavity 111 is recessed inward at a position corresponding to the limiting protrusion 1223 to form two corresponding limiting grooves 1111. Understandably, the number of limiting protrusions 1223 and the number of limiting grooves 1111 are the same. In some feasible embodiments, the number of limiting protrusions 1223 and limiting grooves 1111 can be increased or decreased according to actual needs, which is not limited here.

[0044] Please refer to the following: Figure 5 , Figure 5 The structure of the valve stem is illustrated. This application provides a valve stem 100, which includes a valve stem 2 and a valve core 1 connected to the valve stem 2. The structure of the valve core 1 has been described in detail above and will not be repeated here.

[0045] In the above embodiments, this application uses a sealing sleeve to fill the gap between the rod cap and the transition cavity when the rod cap seals the transition cavity. Furthermore, by providing interlocking limiting grooves and limiting protrusions, it prevents the core rod from moving relative to the seat during the connection and disassembly of the valve top and the core rod. In addition, by designing the valve core as two parts—the valve top and the core rod—and designing the connection between the core rod and the valve top as a detachable connection, the core rod can be easily removed from the seat by separating the core rod and the valve top. Therefore, this application ensures both the stability and airtightness of the valve core structure, while also facilitating the cleaning, maintenance, and replacement of the valve core.

[0046] The above are merely preferred embodiments of this utility model, but do not limit the patent scope of this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this utility model's specification and drawings, whether directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.

Claims

1. A valve core, characterized in that, The valve core includes a seat and a valve core mounted on the seat. The valve core includes a valve top and a core rod. The core rod is detachably mounted in the seat and can partially extend out of the seat. The valve top is detachably connected to the core rod, so that the valve top is mounted outside the seat.

2. The valve core according to claim 1, characterized in that, The valve core includes an inflated state and a deflated state. When the valve core is in the inflated state, the valve top and the valve stem are loosely connected; when the valve core is in the deflated state, the valve top and the valve stem are tightly connected.

3. The valve core according to claim 2, characterized in that, The core rod is also provided with a limiting protrusion, and the seat body is provided with a limiting groove corresponding to the limiting protrusion. The limiting groove and the limiting protrusion are engaged with each other to prevent the core rod from moving relative to the seat body during the connection and disassembly of the valve top and the core rod.

4. The valve core according to claim 3, characterized in that, There are two limiting protrusions and two limiting grooves. The two limiting protrusions protrude symmetrically from the surface of the core rod. The seat body is provided with a receiving cavity and a cavity wall surrounding the receiving cavity. The cavity wall is recessed inward at the position corresponding to the limiting protrusion to form the two corresponding limiting grooves.

5. The valve core according to claim 4, characterized in that, The top end of the core rod is provided with a connecting part, through which the core rod is fixed or separated from the top of the valve.

6. The valve core according to claim 5, characterized in that, The outer wall of the joint is provided with an external thread, and the valve top is provided with an internal thread. The joint and the valve top are detachably connected together through the external and internal threads.

7. The valve core according to claim 5, characterized in that, The seat body is also provided with a vent chamber that communicates with the receiving cavity; when the core rod is fastened to the valve top, the receiving cavity and the vent chamber are not connected; when the core rod is loosely connected to the valve top, the receiving cavity and the vent chamber are connected.

8. The valve core according to claim 7, characterized in that, The core rod has a rod cap at its bottom end away from the joint; the seat body also has a transition cavity between the vent cavity and the receiving cavity; when the joint is fastened to the valve top, the rod cap blocks the transition cavity, so that the vent cavity and the receiving cavity are not connected; when the joint is loosely connected to the valve top, the rod cap separates from the transition cavity, so that the vent cavity and the receiving cavity are connected.

9. The valve core according to claim 8, characterized in that, The seat body is also provided with a first sealing sleeve, which is located between the rod cap and the transition cavity to fill the gap between the rod cap and the transition cavity when the rod cap blocks the transition cavity.

10. An air valve, characterized in that, include: Gas spring; The valve core as described in any one of claims 1-9 is connected to the valve stem.

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