Drip-proof filling valve

Abstract

The utility model discloses a drip-proof filling valve which comprises a valve body, a valve rod and a valve nozzle, wherein the valve body is provided with a hollow inner cavity, a filling opening is formed in the bottom end of the valve body, the valve rod is arranged in the valve body in a lifting mode, and the valve nozzle is communicated with the filling opening. The valve nozzle comprises a plurality of elastic valve clacks and gaps, the gaps are formed in the valve clacks and used for being opened by filling liquid, the gaps penetrate through the valve clacks in the discharging direction of the filling liquid, and the adjacent valve clacks are arranged at intervals; the valve nozzle has an opening state and a closing state: when the valve nozzle is in the opening state, the gap is opened, and the interval between the adjacent valve clacks is reduced; when the valve nozzle is in a closed state, the gap is elastically closed. The drip-proof filling valve is simple in structure, low in design difficulty and good in drip-proof effect.

Description

Technical Field

[0001] The utility model relates to the technical field of filling, in particular to an anti-drip filling valve. Background Art

[0002] For traditional filling valves, the filling is realized by the lifting movement of the valve stem relative to the valve body, and there are problems of splashing and dripping when the valve is closed.

[0003] In view of the above problems, in the prior art, an anti-drip mechanism is arranged above the filling port. During filling, the opening of the anti-drip mechanism and the filling port are synchronously opened by the filling valve stem. The operation is relatively complex, and the synchronism between the two needs to be considered during design, so the design difficulty is relatively large; and when the valve is closed, the liquid between the anti-drip mechanism and the filling port still has the risk of dripping, and the anti-drip effect is relatively poor. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an anti-drip filling valve, which has a simple structure, low design difficulty and good anti-drip effect.

[0005] To achieve the above purpose, the technical scheme adopted by the utility model is:

[0006] An anti-drip filling valve includes a valve body with a hollow inner cavity and a filling port opened at the bottom end, and a valve stem movably arranged in the valve body. The anti-drip filling valve further includes a valve nozzle communicated with the filling port;

[0007] The valve nozzle includes a plurality of elastic valve flaps, and a gap opened in the valve flaps and used to be opened by the filling liquid. The gap penetrates through the valve flaps along the feeding direction of the filling liquid, and adjacent valve flaps are arranged at intervals;

[0008] The valve nozzle has an open state and a closed state:

[0009] When the valve nozzle is in the open state, the gap is opened, and the interval between adjacent valve flaps is reduced;

[0010] When the valve nozzle is in the closed state, the gap is elastically closed.

[0011] Preferably, the valve flap is a tetrahedron.

[0012] More preferably, the circumferential center of the plurality of valve flaps is located on the axis of the filling port.

[0013] More preferably, the sharp angle of the valve flap faces downward, and the lower end of the gap is located in the sharp angle.

[0014] Preferably, the anti-drip filling valve further includes a mounting sleeve sleeved on the filling port and used to hoop the valve nozzle.

[0015] Preferably, the anti-drip filling valve further includes a valve head provided at the lower end of the valve stem, and a sealing ring provided on the outer peripheral portion of the valve head or the inner peripheral portion of the valve body;

[0016] The valve stem is used to tightly press the sealing ring in cooperation with the valve head and the valve body when descending, and the valve stem is also used to provide a gap between the valve head and the valve body when ascending.

[0017] More preferably, the inner peripheral portion at the lower end of the valve body and the outer peripheral portion at the lower end of the valve head are respectively tapered and narrowed downward.

[0018] Even more preferably, the outer peripheral portion at the lower end of the valve head has a first annular groove formed by radially inward depression, and the first annular groove is used for installing the sealing ring.

[0019] Even more preferably, the inner peripheral portion at the lower end of the valve body has a second annular groove formed by radially outward depression, and the second annular groove is used for installing the sealing ring.

[0020] Due to the application of the above technical solutions, the present utility model has the following advantages compared with the prior art: for the anti-drip filling valve of the present utility model, by providing a gap in the valve nozzle for being expanded by the liquid to be filled, the corresponding control structure is omitted, and the structure is relatively simple; the lifting movement of the valve stem only needs to control the gap between it and the valve body, and the design difficulty is relatively low; by arranging the valve nozzle at the lower end of the valve stem, anti-drip is achieved through the valve nozzle at the bottom when the valve is closed, and the anti-drip effect is relatively good. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] FIG. Figure 1 is a schematic structural view of the anti-drip filling valve according to a specific embodiment of the present utility model;

[0022] FIG. Figure 2 is a sectional schematic view of the anti-drip filling valve according to a specific embodiment of the present utility model; Figure 1 ;

[0023] FIG. Figure 3 is a sectional schematic view of the anti-drip filling valve according to a specific embodiment of the present utility model; Figure 2 .

[0024] Wherein: 1, valve body; 2, valve stem; 3, valve nozzle; 31, valve flap; 32, gap; 4, mounting sleeve; 5, valve head; 6, sealing ring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] The technical solutions of the present utility model will be further described below in conjunction with specific embodiments and the drawings.

[0026] In the following text, only some exemplary embodiments are simply described. As those skilled in the art can recognize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the embodiments of the present invention. Therefore, the drawings and the description are considered to be exemplary in nature rather than restrictive.

[0027] In the description of the embodiments of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as "length", "inside", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the embodiments of the present invention.

[0028] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the embodiments of the present invention, the meaning of "a plurality" is two or more unless otherwise specifically defined.

[0029] In the embodiments of the present invention, unless otherwise clearly specified and limited, terms such as "install", "connect", "connection", "fix", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection, or a communication connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0030] In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "on" or "under" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through other features between them. Moreover, the first feature being "above", "over" and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the first feature has a lower horizontal height than the second feature.

[0031] The disclosure below provides many different embodiments or examples for realizing different structures of the embodiments of the present utility model. In order to simplify the disclosure of the embodiments of the present utility model, the components and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the embodiments of the present utility model. In addition, the embodiments of the present utility model can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0032] See also Figures 1-3 As shown, this embodiment provides a drip-proof filling valve, including a valve body 1 with a hollow inner cavity and a filling port at the bottom, a valve stem 2 movably arranged in the valve body 1, and a valve nozzle 3 connected to the filling port.

[0033] In this embodiment, the drip-proof filling valve further comprises a mounting sleeve 4 which is sleeved on the filling port and used to encircle the valve nozzle 3 , and the valve nozzle 3 can be mounted on the bottom end of the valve body 1 through the mounting sleeve 4 .

[0034] See also Figures 2-3 As shown, the above-mentioned drip-proof filling valve also includes a valve head 5 provided at the lower end of the valve stem 2, and a sealing ring 6 provided at the outer periphery of the valve head 5 or the inner periphery of the valve body 1. In this embodiment, the inner periphery of the lower end of the valve body 1 and the outer periphery of the lower end of the valve head 5 are respectively tapered downward. Through this arrangement, when the valve stem 2 descends, the valve head 5 and the valve body 1 can cooperate with each other to press against the sealing ring 6, thereby blocking the filling liquid from flowing downward out of the valve body 1; when the valve stem 2 rises, the valve head 5 and the valve body 1 can be spaced apart to allow the filling liquid to flow downward out of the valve body 1.

[0035] In this embodiment, the outer peripheral portion of the lower end of the valve head 5 has a first annular groove that is recessed radially inward, and the first annular groove is used to install the sealing ring 6.

[0036] In another embodiment, the inner peripheral portion of the lower end of the valve body 1 has a second annular groove that is recessed radially outward, and the second annular groove is used to install the sealing ring 6.

[0037] See also Figures 1-3 As shown, the valve nozzle 3 comprises a multi-petal elastic valve flap 31, a gap 32 opened in the valve flap 31 and used to be stretched open by the filling liquid, and the gap 32 penetrates the valve flap 31 along the feeding direction of the filling liquid, and adjacent valve flaps 31 are arranged at intervals. In this embodiment, the valve flap 31 has six petals, and the six valve flaps 31 are arranged along the circumferential direction and divide the circumference equally. Obviously, in order to facilitate the gap 32 to be stretched open by the filling liquid, its upper end can be set relatively wide, that is, it has a certain gap width in the closed state; at the same time, in order to ensure the anti-drip effect, its lower end can be set relatively tightly, that is, it can prevent the filling liquid from leaking in the closed state.

[0038] The valve mouth 3 has an open state and a closed state:

[0039] When the valve mouth 3 is in an open state, the gap 32 is expanded by the filling liquid, and the interval between adjacent valve flaps 31 is reduced;

[0040] When the valve mouth 3 is in a closed state, the gap 32 is elastically closed under the action of the elastic restoring force.

[0041] In this embodiment, the valve flap 31 is a tetrahedron, and the center of the plurality of valve flaps 31 is located on the axis of the filling port; the sharp corner of the valve flap 31 faces downward, and the lower end of the gap 32 is located in the sharp corner.

[0042] The working process of this embodiment is described in detail below:

[0043] During filling, the valve stem 2 is driven to move upward, so that the valve head 5 and the valve body 1 are spaced apart, and the filling liquid flows down from the gap between the two and impacts the valve mouth 3. The valve mouth 3 is deformed under the impact of the filling liquid to open the gap 32, and the filling liquid flows downward from the valve mouth 3 from the gap 32 to perform filling;

[0044] After filling, the valve stem 2 is driven to move downward, and the valve head 5 is pressed against the valve body 1 through the sealing ring 6 to block the filling liquid from flowing to the valve mouth 3. The valve mouth 3 returns to its initial state under the action of its own elastic restoring force, and the gap 32 is elastically closed.

[0045] The above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with the technology to understand the content of the utility model and implement it accordingly, and they cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A drip-proof filling valve, comprising a valve body having a hollow inner cavity and a filling port at the bottom end, and a valve stem movably arranged in the valve body, characterized in that: The anti-drip filling valve also includes a valve nozzle connected to the filling port; The valve nozzle comprises a plurality of elastic valve flaps, a gap provided in the valve flaps and used to be opened by the filling liquid, the gap passes through the valve flaps along the feeding direction of the filling liquid, and adjacent valve flaps are arranged at intervals; The upper end of the gap is arranged relatively wide, and the lower end of the gap is arranged relatively close; The valve mouth has an open state and a closed state: When the valve mouth is in the open state, the gap is opened and the interval between adjacent valve flaps is reduced; When the valve mouth is in the closed state, the gap is elastically closed.

2. The anti-drip filling valve according to claim 1, characterized in that: The valve flap is a tetrahedron.

3. The anti-drip filling valve according to claim 2, characterized in that: The surrounding centers of the multiple valve flaps are located on the axial center line of the filling port.

4. The anti-drip filling valve according to claim 2, characterized in that: The sharp corner of the valve flap faces downward, and the lower end of the gap is located in the sharp corner.

5. The anti-drip filling valve according to claim 1, characterized in that: The anti-drip filling valve also includes a mounting sleeve which is sleeved on the filling port and is used to encircle the valve mouth.

6. The anti-drip filling valve according to claim 1, characterized in that: The anti-drip filling valve also includes a valve head arranged at the lower end of the valve stem, and a sealing ring arranged at the outer peripheral portion of the valve head or the inner peripheral portion of the valve body; The valve stem is used to press against the sealing ring through the cooperation between the valve head and the valve body when descending, and the valve stem is also used to space the valve head and the valve body when ascending.

7. The anti-drip filling valve according to claim 6, characterized in that: The inner peripheral portion of the lower end of the valve body and the outer peripheral portion of the lower end of the valve head are respectively tapered downward.

8. The anti-drip filling valve according to claim 7, characterized in that: The outer peripheral portion of the lower end of the valve head has a first annular groove which is recessed radially inward, and the first annular groove is used for installing the sealing ring.

9. The anti-drip filling valve according to claim 7, characterized in that: The inner peripheral portion of the lower end of the valve body has a second annular groove which is recessed radially outward, and the second annular groove is used for installing the sealing ring.

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