CN220037532U

CN220037532U - One-way valve

Info

Publication number: CN220037532U
Application number: CN202320816218.9U
Authority: CN
Inventors: 陈金召; 张瑜; 牟松; 邹正偉
Original assignee: Chongqing Longxin New Energy Technology Co ltd
Current assignee: Chongqing Longxin New Energy Technology Co ltd
Priority date: 2023-04-13
Filing date: 2023-04-13
Publication date: 2023-11-17
Anticipated expiration: 2033-04-13

Abstract

The utility model provides a one-way valve which is provided with a one-way valve body and a sealing structure, wherein the one-way valve body comprises an external thread section and a sealing groove, the sealing structure comprises a fastening piece and an annular sealing piece, the inner aperture of the fastening piece is larger than the large diameter of the external thread section, the sealing groove is used for placing the sealing structure, and the outer side of the sealing groove is provided with a guiding curved surface. The assembly process is convenient and saves time, and the curved surface is arranged on the outer side of the groove, so that the guiding and positioning effects are achieved and the original sealing effect is ensured.

Description

One-way valve

Technical Field

The utility model relates to a one-way valve, in particular to an easy-to-assemble one-way valve.

Background

Referring to fig. 1, in the valve body with the conventional structure, in order to increase the contact area between the sealing element and the valve body, the size of the sealing element needs to be controlled, and the inner diameter of the sealing element is smaller than the large diameter of the threads of the unidirectional valve body, so that the sealing element needs to be rotationally seated along the threads of the unidirectional valve body, and the assembly efficiency is low.

Disclosure of Invention

The utility model aims to provide a one-way valve, which can ensure the contact area of a sealing element and a valve body, simultaneously increase the diameter of an inner hole of a flat gasket, does not need to be rotationally seated during assembly, and is easy to assemble.

In order to solve the technical problems, the utility model provides a one-way valve which is provided with a one-way valve body and a sealing structure, wherein the one-way valve body comprises an external thread section and a sealing groove, the sealing structure comprises a fastener and an annular sealing piece, the inner aperture of the fastener is larger than the large diameter of the external thread section, the sealing groove is used for placing the sealing structure, and the outer side of the sealing groove is provided with a guiding curved surface.

In the one-way valve structure, the diameter of the inner hole of the fastener is increased, the fastener is not required to be rotationally seated during assembly, the assembly process is convenient, the time is saved, and the curved surface is arranged on the outer side of the groove, so that the guiding and positioning effects are achieved, and the original sealing effect is ensured.

Further, the guide curved surface is a conical surface.

Further, the guide curved surface is an arc surface.

Further, the fastener is a shoulder collar.

The beneficial effects of the utility model are as follows: the sealing effect is ensured, the assembly is more convenient, and the assembly efficiency is greatly improved.

Drawings

The accompanying drawings, in which like reference numerals refer to identical or similar parts throughout the several views and which are included to provide a further understanding of the utility model, are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model unduly. In the drawings:

FIG. 1 is a schematic diagram of a prior art seal installation process for a check valve;

FIG. 2 is a schematic diagram of a check valve according to the present utility model;

FIG. 3 is a schematic view of the structure of the check valve body when the curved surface is a conical surface;

FIG. 4 is a schematic view of the structure of the check valve body when the curved surface is an arc surface;

FIG. 5 is a schematic view of a check valve with an enlarged inner bore of the fastener and no guide curved surface;

in the figure, a fastener 1, an annular sealing element 2, an external thread section 3, a sealing groove 4 and a guiding curved surface 5.

Detailed Description

The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown.

The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model.

All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. In addition, in the case of the optical fiber,

the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Referring to fig. 2-4, in one embodiment of the present utility model, there is provided a check valve having a check valve body including an external thread section 3 and a sealing groove 4, and a sealing structure including a fastener 1 and an annular sealing member 2, wherein the inner diameter of the fastener 1 is larger than the large diameter of the external thread section 3 (the large diameter of the thread is also called the nominal diameter of the thread, which is the diameter of a cylinder with the crest or the root of the external thread coinciding), and the sealing groove 4 is used for placing the sealing structure and is provided with a guiding curved surface 5 on the outer side thereof. After the fastener 1 is mounted with the annular seal 2, the check valve body is connected with the check valve seat through the external thread section so as to fasten the annular seal 2.

In this check valve structure, through increasing fastener 1's interior aperture, make fastener 1 can drop fast when the assembly, assembly efficiency is compared in traditional valve body structure fastener need along screw thread rotation fall promote showing.

As shown in fig. 5, on the premise that the inner hole diameter of the fastener is increased, the contact area between the fastener 1 and the sealing groove 4 is reduced, the fastener 1 moves radially, so that the sealing effect is poor, and therefore, the guide curved surface 5 is arranged on the outer side of the sealing groove 4 while the inner hole diameter of the fastener 1 is increased, the radial movement of the fastener 1 is reduced, and the sealing effect is ensured.

Referring to fig. 3 and 4, the guide curved surface 5 is preferably provided as a conical surface or an arc surface.

The fastener 1 can select washers and check rings, and preferably, shoulder check rings are used, and the shoulder check rings play a role in preventing the left and right movement of parts on the shaft or the hole, namely, the axial limiting effect is better in preventing the axial movement of other parts.

The annular seal 2 may be a conventional seal member such as a seal ring or a seal ring.

Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present utility model, which is intended to be covered by the scope of the claims of the present utility model.

Claims

1. A one-way valve comprises

The check valve body is provided with an external thread section and a sealing groove;

a sealing structure comprising a ring seal having a fastener and disposed over the fastener;

the method is characterized in that: the sealing groove is used for placing a sealing structure, and a guiding curved surface is arranged on the outer side of the sealing groove;

the inner aperture of the fastener is larger than the large diameter of the external thread section.

2. The one-way valve of claim 1, wherein: the guide curved surface is a conical surface.

3. The one-way valve of claim 1, wherein: the guide curved surface is an arc surface.

4. The one-way valve of claim 1, wherein: the fastener is a shaft shoulder retainer ring.