Filling port device, and valve

Abstract

A filling port device and a valve having same. The filling port device (100, 200) comprises: a housing (10, 80); and a cover (20, 90) for opening or closing an opening, wherein the cover is provided with an outer ledge portion and a cover connecting portion which is in threaded connection with the housing. The filling port device further comprises: at least one first non-return portion (30, 60), which is provided with a non-return base (31, 61) arranged on the outer ledge portion, and a non-return body (32, 62) arranged on the non-return base; and a second non-return portion (40, 70), which is arranged on the housing and cooperates with the non-return body, wherein ratchet teeth (41, 71) are provided on the second non-return portion and are annularly arranged on the outside of an channel. The non-return body is configured to snap into tooth grooves of the ratchet teeth after the cover is screwed tightly onto the housing. The first non-return portion is operably removed from the cover connected thereto or the second non-return portion is operably removed from the housing connected thereto. The valve has an anti-tampering function, such that whether the cover of the valve has been opened by a person prior to initial use can be clearly distinguished.

Description

Filling port device and valve

[0001] This patent application claims priority to the following Chinese patent application:

[0002] Submission Date: May 29, 2024; Application Number: 2024106853764; Invention Title: Filling Port Device and Valve;

[0003] The full text of the above application is incorporated herein by reference. Technical Field

[0004] This invention relates to containers, and more particularly to filling port devices and valves. Background Technology

[0005] In large liquid storage containers, valves are typically used to discharge liquid or seal the container. Existing valves consist of a housing with a filling spout, a valve core, an actuator, and a cap. During assembly, the actuator is inserted into the housing and engages with the valve core, actuating it to open and close the valve. The cap is then attached to the housing, sealing the passage. With existing caps, to ensure the safety of the product inside the container, others should not open the cap during transport or when it remains closed. However, it is impossible to detect if the cap has been opened by someone else. Summary of the Invention

[0006] The purpose of this invention is to provide a filling port device and valve, which has an anti-tampering function and can clearly identify whether the cap of the valve has been opened by someone when it is used for the first time.

[0007] To solve the above-mentioned technical problems, embodiments of the present invention provide a filling port device, comprising:

[0008] A housing, wherein an axially extending channel is provided inside the housing and the end of the housing is provided with an opening communicating with the channel;

[0009] A cover body that opens or closes the opening; the cover body has a cover connection portion that is threadedly connected to the housing, and an outer rim portion circumferentially disposed around the cover connection portion:

[0010] The filling port device further includes:

[0011] At least one first check valve has a check valve base disposed on the outer edge and a check valve body disposed on the check valve base; the check valve base at least partially protrudes axially toward the side where the cover connection is located and is spaced apart from the cover connection.

[0012] The second check valve is disposed on the housing and cooperates with the check valve body; the second check valve has ratchet teeth, which are arranged around the outside of the channel;

[0013] The check valve body is used to engage in the groove of the ratchet teeth after the cover and the housing are screwed together; the first check valve is operably detachable from the cover to which it is connected, or the second check valve is operably detachable from the housing to which it is connected.

[0014] In one embodiment, when the first check valve is operably removed from the cover to which it is connected, the check valve base is connected to the outer eaves via a first weakening rib.

[0015] In one embodiment, the check valve base has an embedded portion embedded in the outer eaves and a support portion connected to the embedded portion; the embedded portion is connected to the outer eaves via the first weakening rib, and the check valve body is disposed on the support portion.

[0016] In one embodiment, the check valve body is disposed on the side of the support portion facing the cover connection portion;

[0017] The housing has a flange and a housing connection portion that is connected to the flange and extends axially; the housing connection portion is threadedly connected to the cover connection portion.

[0018] The ratchet is located on the outer periphery of the port on the side opposite to the flange of the housing connection.

[0019] In one embodiment, the second check valve is operably detached from the housing to which it is connected;

[0020] The housing has a flange and a housing connection portion that is connected to the flange and extends axially; the housing connection portion is threadedly connected to the cover connection portion.

[0021] The second check valve is connected to the housing connection part through the second weakening rib, and the second check valve is separated from the housing connection part by an annular cavity into which the first check valve is inserted;

[0022] The ratchet ring is located on the side of the second check portion facing the housing connection portion, and the check body is located on the side of the check base away from the cover connection portion.

[0023] In one embodiment, the first check valve and the outer eaves are integral parts;

[0024] The first check valve has multiple portions and is spaced apart around the outer periphery of the cover connection portion.

[0025] In one embodiment, there are two first check valves, which are spaced apart from each other along the axis of the cover.

[0026] In one embodiment, the check body is a bump;

[0027] The check body has a first check surface and a first guide surface that forms a first angle with the first check surface;

[0028] The ratchet has a second check surface and a second guide surface that forms a second angle with the second check surface;

[0029] When the cover is screwed onto the housing, the second guide surface engages with the first guide surface to guide the cover.

[0030] When the cover is screwed tightly onto the housing, the first check surface abuts against the second check surface.

[0031] In one embodiment, the ratio of the axial height of the first check valve protruding outside the outer eaves to the axial height of the cover connection protruding outside the outer eaves is 1:4-1:6.

[0032] Embodiments of the present invention also provide a valve, comprising: a filling port device as described in any of the above, and a valve core disposed within the housing.

[0033] Compared to existing technologies, this invention features a first check valve and a second check valve. The second check valve has ratchet teeth, and after the cap is screwed tightly onto the housing, the check valve body of the first check valve engages in the grooves of the ratchet teeth, preventing the cap from being unscrewed from the housing. When it is necessary to open the filling port, either the first or second check valve needs to be disassembled. The check valve body is no longer held in place by the second check valve, and the cap can be unscrewed from the housing. Therefore, whether the first or second check valve has been disassembled can clearly indicate whether the valve cap of the valve has been opened before its initial use. Attached Figure Description

[0034] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0035] Figure 1 is a schematic diagram of the filling port device according to an embodiment of the present invention;

[0036] Figure 2 is a schematic diagram of the structure of the housing according to an embodiment of the present invention;

[0037] Figure 3 is a schematic diagram of the structure of the cover according to an embodiment of the present invention;

[0038] Figure 4 is a schematic diagram of the internal structure during the process of screwing the cover onto the housing according to an embodiment of the present invention;

[0039] Figure 5 is a schematic diagram of the internal structure of the cover being screwed onto the housing from another perspective according to an embodiment of the present invention;

[0040] Figure 6 is a schematic diagram of the structure after the cover is screwed onto the shell according to an embodiment of the present invention;

[0041] Figure 7 is a schematic diagram of the structure after the cover is screwed onto the housing from another perspective according to an embodiment of the present invention;

[0042] Figure 8 is a schematic diagram of the structure of the first anti-return part being opened after the cover is screwed onto the shell according to an embodiment of the present invention.

[0043] Figure 9 is a schematic diagram of the filling port device according to another embodiment of the present invention;

[0044] Figure 10 is a schematic diagram of the structure of the housing according to another embodiment of the present invention;

[0045] Figure 11 is a cross-sectional view of the housing according to another embodiment of the present invention;

[0046] Figure 12 is a schematic diagram of the cover structure according to another embodiment of the present invention;

[0047] Figure 13 is a schematic diagram of the internal structure during the process of screwing the cover onto the housing according to another embodiment of the present invention;

[0048] Figure 14 is a schematic diagram of the structure after the cover is screwed onto the shell according to an embodiment of the present invention;

[0049] Figure 15 is a schematic diagram of the structure after the cover is screwed onto the shell from another perspective according to an embodiment of the present invention;

[0050] Figure 16 is a schematic diagram of the structure of the second anti-return part being opened after the cover is screwed onto the shell according to an embodiment of the present invention.

[0051] Reference numerals: 100, filling port device; 10, housing; 101, internal thread; 11, channel; 12, housing connection; 13, flange; 20, cover; 201, external thread; 21, outer edge; 22, cover connection; 23, sealing ring; 30, first check valve; 31, check valve base; 311, embedded part; 312, support part; 32, check valve body; 321, first check valve surface; 322, first guide surface; 34, first weakening rib; 40, second check valve; 41, ratchet; 411, second check valve surface; 412, second guide surface; 42, tooth groove; 20 0. Filling port device; 60. First check valve; 61. Check valve base; 62. Check valve body; 621. First check valve surface; 622. First guide surface; 70. Second check valve; 71. Racket tooth; 711. Second check valve surface; 712. Second guide surface; 72. Tooth groove; 73. Second weakening rib; 74. Annular cavity; 80. Shell; 81. Shell connection part; 82. Flange; 90. Cover; 91. Outer eaves; 92. Cover connection part. Detailed Implementation

[0052] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the various embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, those skilled in the art will understand that many technical details have been presented in the various embodiments of the present invention to enable the reader to better understand this application. However, the technical solutions claimed in this application can be implemented even without these technical details and various changes and modifications based on the following embodiments.

[0053] In the following description, certain specific details are set forth for the purpose of illustrating various disclosed embodiments in order to provide a thorough understanding of the various disclosed embodiments. However, those skilled in the art will recognize that embodiments may be practiced without one or more of these specific details. In other instances, well-known apparatuses, structures, and techniques associated with this application may not have been shown or described in detail to avoid unnecessarily obscuring the description of the embodiments.

[0054] Unless the context requires otherwise, throughout the specification and claims, the word “comprising” and its variations, such as “including” and “having”, shall be understood to have an open, inclusive meaning, that is, to be interpreted as “including, but not limited to”.

[0055] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings to provide a clearer understanding of the purpose, features, and advantages of the present invention. It should be understood that the embodiments shown in the drawings are not intended to limit the scope of the present invention, but are merely illustrative of the essential spirit of the technical solution of the present invention.

[0056] Throughout this specification, references to "an embodiment" or "an embodiment" indicate that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. Therefore, the appearance of "in an embodiment" or "an embodiment" in various places throughout the specification does not necessarily refer to the same embodiment. Furthermore, a particular feature, structure, or characteristic may be combined in any manner in one or more embodiments.

[0057] The singular forms “a” and “the” used in this specification and the appended claims include plural references unless otherwise expressly stated herein. It should be noted that the term “or” is generally used to mean “and / or” unless otherwise expressly stated herein.

[0058] In the following description, in order to clearly demonstrate the structure and working method of the present invention, a number of directional terms will be used. However, terms such as "front", "back", "left", "right", "outside", "inside", "outward", "inward", "up", and "down" should be understood as convenient terms and not as limiting terms.

[0059] Embodiments of the present invention are described below with reference to the accompanying drawings.

[0060] This invention relates to a filling port device 100. As shown in Figures 1, 2, and 3, the filling port device 100 includes a housing 10 and a cover 20. The housing 10 has an axially extending channel 11 that penetrates the housing 10, and an opening at one end of the housing 10 communicating with the channel 11. The cover 20 has an external thread 201, and the housing 10 has an internal thread 101. The cover 20 is threadedly connected to the housing 10 and can be operably opened or closed. The cover 20 has a cover connecting portion 22 that is threadedly connected to the housing 10, and an outer eave portion 21 that is circumferentially disposed around the outer periphery of the cover connecting portion 22. The filling port device 100 further includes at least one first check valve 30 and a second check valve 40. The first check valve 30 has a check valve base 31 disposed on the outer eave portion 21, and a check valve body 32 disposed on the check valve base 31. The check valve base 31 at least partially protrudes axially toward the side where the cover connecting portion 22 is located and is spaced apart from the cover connecting portion 22. The second check valve 40 is disposed on the housing 10 and cooperates with the check valve body 32. The second check valve 40 has ratchet teeth 41, which are arranged around the outside of the channel 11. The check valve body 32 is used to engage with the grooves 42 of the ratchet teeth 41 after the cap 20 is screwed onto the housing 10 and tightened. The first check valve 30 can be operably removed from the cap 20 to which it is connected. Specifically, as shown in Figures 4, 5, 6, and 7, when the filling port is initially capped, the cap 20 is screwed onto the housing 10, the cap connecting part 22 is inserted into the channel 11, and the check valve body 32 is moved along the direction of the ratchet teeth 41 by the cap 20. After the cap 20 caps the housing 10, the ratchet teeth 41 engage the check valve body 32, and the cap 20 cannot be rotated in the opposite direction to open the housing 10. When it is necessary to unscrew the cover 20, as shown in Figure 8, the first check valve 30 is torn off from the outer edge 21. The cover 20 can only be unscrewed if the first check valve 30 is not stuck.

[0061] As described above, due to the presence of a first check valve 30 and a second check valve 40, with the second check valve 40 having ratchet teeth 41, after the cover 20 is screwed tightly onto the housing 10, the check valve body 32 of the first check valve 30 engages in the grooves 42 of the ratchet teeth 41, preventing the cover 20 from being unscrewed from the housing 10. When it is necessary to open the filling port, the first check valve 30 needs to be disassembled, and the check valve body 32 is no longer held in place by the second check valve 40, allowing the cover 20 to be unscrewed from the housing 10. Therefore, whether the first check valve 30 has been disassembled or not clearly indicates whether the valve cover of the valve has been opened during its first use.

[0062] Furthermore, as shown in Figures 3 and 4, the check base 31 and the outer eaves 21 are connected by the first weakening rib 34. The first check part 30 and the outer eaves 21 are integral parts, machined together. The first check part 30 and the cover 20 are connected as a whole by the first weakening rib 34. The first weakening rib 34 needs to be torn apart to prevent the first check part 30 from separating from the cover 20.

[0063] Furthermore, the first check valve 30 and the outer eaves 21 are integral parts, and there are multiple first check valves 30, which are spaced apart around the outer periphery of the cover connecting part 22.

[0064] Optionally, as shown in FIG3, there are two first check valves 30, which are spaced apart from each other along the axis of the cover 20.

[0065] Furthermore, as shown in Figure 3, the check base 31 has an embedded portion 311 embedded in the outer eaves portion 21, and a support portion 312 connected to the embedded portion 311. The embedded portion 311 is connected to the outer eaves portion 21 via a first weakening rib 34, and the check body 32 is disposed on the support portion 312.

[0066] Further, as shown in Figure 3, the check valve body 32 is disposed on the side of the support portion 312 facing the cover connection portion 22. The housing 10 has a flange 13 and a housing 10 connection portion that is connected to the flange 13 and extends axially, and the housing 10 connection portion is threadedly connected to the cover 20 connection portion. The outer periphery of the port of the housing 10 connection portion opposite to the flange 13 has ratchet teeth 41.

[0067] Additionally, as shown in Figures 2, 3, 4, 5, 6, and 7, the check body 32 is a protrusion. The check body 32 has a first check surface 321 and a first guide surface 322 forming a first angle with the first check surface 321. The ratchet 41 has a second check surface 411 and a second guide surface 412 forming a second angle with the second check surface 411. When the cover 20 is screwed onto the housing 10, the second guide surface 412 engages with the first guide surface 322 to guide the cover 20. After the cover 20 is screwed tightly onto the housing 10, the first check surface 321 abuts against the second check surface 411. During the initial screwing of the cover 20 onto the housing 10, due to the elasticity of the first check portion 30, the check body 32 can be pushed outwards when passing the tip of the ratchet 41, thus passing over the tip of the ratchet 41, allowing the cover 20 to continue screwing smoothly to a locked position. Specifically, the check body 32 has a first check surface 321 and a first guide surface 322 forming a first angle with the first check surface 321, and the ratchet 41 has a second check surface 411 and a second guide surface 412 forming a second angle with the second check surface 411. During the initial screwing of the cover 20 onto the housing 10, as shown in the clockwise direction, the second guide surface 412 can provide guidance to the first guide surface 322, allowing the check body 32 to slide along the arrangement direction of the ratchet 41, that is, in the clockwise direction, allowing the cover 20 to be screwed onto the housing 10. After the cover 20 and the housing 10 are screwed tightly together, the first check surface 321 abuts against the second check surface 411, the second guide surface 412 abuts against the first guide surface 322, and the check body 32 is embedded in the tooth groove 42 of the ratchet 41. In order to allow the check body 32 to slide by the cover 20, the first guide surface 322 gradually moves away from the cover 20 in the direction of the first check surface 321.

[0068] Furthermore, as shown in Figure 6, the ratio of the axial height h2 of the first check valve 30 protruding outside the outer edge 21 to the axial height h1 of the cover connecting part 22 protruding outside the outer edge 21 is 1:4-1:6. Optionally, the ratio of the axial height h2 of the first check valve 30 protruding outside the outer edge 21 to the axial height h1 of the cover connecting part 22 protruding outside the outer edge 21 is 1:5.

[0069] In another embodiment, a filling port device 200 is provided, as shown in FIG. 9. The filling port device 200 has a structure similar to the first embodiment, including a housing 80 and a cap 90. As shown in FIGS. 10, 11, and 12, a second check valve 70 is operably detachable from the housing 80 to which it is connected. The housing 80 has a flange 82 and a housing 80 connecting portion connected to the flange 82 and extending axially, the housing 80 connecting portion being threadedly connected to the cap 90 connecting portion. The second check valve 70 is connected to the housing 80 connecting portion by a second weakening rib 73, and the second check valve 70 and the housing 80 connecting portion are spaced apart by an annular cavity 74 into which the first check valve 60 is inserted. A ratchet 71 is arranged around the second check valve 70 on the side facing the housing 80 connecting portion, and a check valve body 62 is arranged on the side of the check valve base 61 facing away from the cap connecting portion 92. At this time, the second check part 70 has slight elasticity. When the check body 62 passes the tip of the ratchet 71, it can push the first check part 60 outward, thereby passing the tip of the ratchet 71, allowing the cover 90 to continue to be screwed on smoothly until locked. As shown in Figures 13, 14, 15, and 16, the check body 62 has a first check surface 621 and a first guide surface 622 forming a first angle with the first check surface 621. The ratchet 71 has a second check surface 711 and a second guide surface 712 forming a second angle with the second check surface 711. During the initial screwing of the cover 90 onto the housing 80, as shown in the clockwise direction, the second guide surface 712 can provide guidance to the first guide surface 622, allowing the check body 62 to slide along the arrangement direction of the ratchet 71, that is, in the clockwise direction, allowing the cover 90 to be screwed onto the housing 80. After the cover 90 and the housing 80 are screwed together, the first check surface 621 abuts against the second check surface 711, and the second guide surface 712 abuts against the first guide surface 622. The check body 62 is embedded in the groove 72 of the ratchet 71. To allow the check body 62 to slide with the cover 90, the first guide surface 622 gradually moves away from the cover 90 towards the first check surface 621. When it is necessary to open the cover 90, the second check part 70 is removed from the connection part of the housing 80, and the check body 62 is no longer limited by the second check part 70, allowing the cover 90 to be rotated open. In this structure, the first check part 60 and the outer eaves 91 can be integrally formed and can be retained on the outer eaves 91. The check base 61 of the first check part 60 protrudes integrally from the outer eaves 91, rather than being partially embedded in the outer eaves 91.

[0070] Since the first embodiment corresponds to this embodiment, this embodiment can be implemented in conjunction with the first embodiment. The relevant technical details mentioned in the first embodiment remain valid in this embodiment, and the technical effects achievable in the first embodiment can also be achieved in this embodiment. To reduce repetition, they will not be repeated here. Correspondingly, the relevant technical details mentioned in this embodiment can also be applied to the first embodiment.

[0071] Another embodiment of this invention relates to a valve, which includes: a filling port device as described in any of the above embodiments, and a valve core disposed within the housing.

[0072] The preferred embodiments of the present invention have been described in detail above, but it should be understood that, if necessary, aspects of the embodiments can be modified to utilize aspects, features, and concepts from various patents, applications, and publications to provide other embodiments.

[0073] In light of the detailed description above, these and other changes can be made to the embodiments. Generally, the terminology used in the claims should not be considered limited to the specific embodiments disclosed in the specification and claims, but should be understood to include all possible embodiments together with the full scope of equivalents enjoyed by these claims.

[0074] Those skilled in the art will understand that the above embodiments are specific examples of implementing the present invention, and in practical applications, various changes in form and detail may be made without departing from the spirit and scope of the present invention.

Claims

1. A filling port device, comprising: a housing having a channel extending axially through the housing, the housing having an opening at an end thereof communicating with the channel; a cap opening or closing the opening, the cap having a cap connecting portion threadedly connected to the housing, and a skirt portion surrounding an outer periphery of the cap connecting portion; characterized in that the filling port device further comprises: at least one first check portion having a check base provided on the skirt portion, and a check body provided on the check base, the check base being at least partially axially protruded toward a side of the cap connecting portion and spaced apart from the cap connecting portion; a second check portion provided on the housing and cooperating with the check body, the second check portion having a ratchet tooth surrounding an outer periphery of the channel; the check body being configured to be engaged in a tooth groove of the ratchet tooth after the cap is screwed onto the housing, and the first check portion being operable to be detached from the cap or the second check portion being operable to be detached from the housing.

2. The filler neck assembly of claim 1, wherein, when the first check portion is operable to be detached from the cap, the check base is connected to the skirt portion by a first weakened rib.

3. The filler neck assembly of claim 2, wherein, the check base has an embedded portion embedded in the skirt portion, and a support portion connected to the embedded portion, the embedded portion being connected to the skirt portion by the first weakened rib, and the check body being provided on the support portion.

4. The filler neck assembly of claim 3, wherein, the check body is provided on a side of the support portion facing the cap connecting portion. the housing has a flange, and a housing connecting portion axially extending from the flange, the housing connecting portion being threadedly connected to the cap connecting portion; the housing connecting portion has the ratchet tooth on an outer periphery of a side of the housing connecting portion facing away from the flange.

5. The filler neck assembly of claim 1, wherein, when the second check portion is operable to be detached from the housing; the housing has a flange, and a housing connecting portion axially extending from the flange, the housing connecting portion being threadedly connected to the cap connecting portion; the second check portion is connected to the housing connecting portion by a second weakened rib, and is spaced apart from the housing connecting portion by a stroke of the first check portion inserted into an annular cavity; the ratchet tooth is provided on a side of the second check portion facing the housing connecting portion, and the check body is provided on a side of the check base facing away from the cap connecting portion.

6. The filler neck assembly of claim 1, wherein, the first check portion is an integral part of the skirt portion; the first check portion has a plurality of check portions spaced apart around an outer periphery of the cap connecting portion.

7. The filler neck assembly of claim 6, wherein, the first check portion has two check portions spaced apart along an axis of the cap.

8. The filler neck assembly of claim 1, wherein, the check body is a protrusion; the check body has a first check surface, and a first guide surface at a first included angle with the first check surface; the ratchet tooth has a second check surface, and a second guide surface at a second included angle with the second check surface; when the cap is screwed onto the housing, the second guide surface cooperates with the first guide surface to guide the cap. When the cover is screwed to the shell, the first check surface abuts against the second check surface.

9. The filler neck assembly of claim 1, wherein, The ratio of the axial height of the first check portion protruding outside the outer rim portion to the axial height of the cover connecting portion protruding outside the outer rim portion is 1:4-1:

6.

10. A valve, characterized by Comprising: A filling opening device as claimed in any one of claims 1 to 9, and a valve core arranged in the housing.

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