CN216519773U

CN216519773U - Bathtub non-return air valve

Info

Publication number: CN216519773U
Application number: CN202122310782.7U
Authority: CN
Inventors: 刘学文; 赵怀彬
Original assignee: Guangzhou Tenglong Health Industry Co ltd
Current assignee: Guangzhou Tenglong Health Industry Co ltd
Priority date: 2021-09-23
Filing date: 2021-09-23
Publication date: 2022-05-13
Anticipated expiration: 2031-09-23

Abstract

The utility model provides a bathtub air check valve which comprises a cylindrical main body, a rotary rod arranged on the inner side of the cylindrical main body and a handle fixedly connected with the rotary rod, wherein one end of the cylindrical main body is provided with a sealing element used for unidirectional air inlet, the other end of the cylindrical main body is provided with a fastening element used for limiting the rotary rod, the cylindrical main body is provided with a first opening, the side wall of the rotary rod is provided with a second opening, the end part of the rotary rod is provided with a third opening, and the third opening faces the sealing element so as to realize that whether the first opening, the second opening and the third opening are communicated or not is determined by rotating the handle. The present invention features that the non-return air valve is installed inside the bathtub and the surface of the valve is flush with the inner wall of the bathtub.

Description

Bathtub non-return air valve

Technical Field

The utility model relates to the field of bathtub equipment, in particular to a bathtub air check valve.

Background

With the increasing demands of users on quality of life, bathtubs are becoming more and more popular in the general household, and check valves are usually provided in the bathtub suction system to prevent the backflow of water. The check valve is a valve whose opening and closing part is a circular valve clack and acts by its own weight and medium pressure to block the medium from flowing backwards, and belongs to the automatic valve class, also called check valve, one-way valve, backflow valve or isolating valve. The medium flows in from the inlet end and flows out from the outlet end. The valve is opened when the inlet pressure is greater than the sum of the weight of the flap and its flow resistance. On the contrary, when the medium flows backwards, the valve is closed, and the swing check valve is provided with a valve clack which is obliquely arranged and can rotate around the shaft.

The prior art with the patent number CN201620971719.4 discloses a novel piston type filter vat with a check valve structure, wherein the check valve is commonly used as a bottom valve of an air suction system, and can prevent the backflow of water. The cylinder surface of the non-return air valve in the market is high and clumsy after installation, and the using space is limited because the cylindrical main body and the locking cover of the non-return air valve are connected through threads, the cylindrical main body protrudes more than the cylinder surface, and the thickness of the locking cover causes the cylinder surface to be high after installation.

SUMMERY OF THE UTILITY MODEL

The utility model provides a bathtub air check valve, which is characterized in that the air check valve is installed in a bathtub, and the surface of the valve is flush with the inner wall of the bathtub.

The technical scheme is as follows:

the utility model provides a bathtub non return air valve, including the cylindric main part and set up in the inboard swing arm of cylindric main part and with swing arm fixed connection's handle, the one end of cylindric main part is equipped with the sealing member that is used for one-way air inlet, and the other end is equipped with and is used for the restriction the fastener of swing arm, be equipped with first opening in the cylindric main part, it is equipped with the third opening to be equipped with second opening and tip on the swing arm lateral wall, the third opening orientation the sealing member is in order to realize through the rotation the handle decision first opening the second opening with whether the third opening communicates with each other.

Furthermore, a groove is formed in the outer side of the end portion of the rotating rod, and an O-shaped ring for sealing is arranged in the groove.

Further, the fastener is a shaft clamp, and the shaft clamp is arranged between the cylindrical main body and the rotating rod.

Further, the cylindrical main body is provided with an opening convex rib and a closing convex rib on the inner side, and the rotating rod is provided with a positioning convex rib to realize that the positioning convex rib is received when the rotating rod rotates, the opening convex rib or the closing convex rib is limited.

Furthermore, the first opening part is also provided with a tile-shaped sealing gasket for sealing, and the tile-shaped sealing gasket is positioned between the opening convex rib and the closing convex rib.

Further, the sealing element is an umbrella-shaped water sealing sheet.

Further, the first opening is located on a sidewall of the cylindrical body.

Furthermore, one end of the cylindrical main body is also sleeved with an annular sealing gasket and a locking nut.

The beneficial effects provided by the utility model are as follows: installing a rotary rod in the cylindrical main body, wherein one end of the rotary rod is limited by the inner wall of the cylindrical main body, the other end of the rotary rod is limited by a fastener, and the rotary rod can rotate but cannot move; the check air valve is arranged on an air suction system of the bathtub, when air needs to be sucked, the handle is rotated to drive the rotating rod, the second opening is opposite to the first opening, and then the air can enter the air suction system through the first opening, the second opening, the third opening and the sealing piece in sequence; when the air needs to be closed, the handle is rotated, the second opening on the rotating rod is not opposite to the first opening, and the connection between the air suction system and the air outside the valve is cut off. Meanwhile, when water in the air suction system flows backwards, the sealing element blocks water flow, and the non-return function is realized. The utility model fixes the rotary rod through the fastener, and cancels the lock cover in the prior art, so that the part of the cylindrical main body which protrudes out of the bathtub wall is reduced, and the surface of the valve is flush with the inner wall of the bathtub.

Drawings

The accompanying drawings, which 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 and effects of the utility model.

Unless otherwise specified or defined, the same reference numerals in different figures refer to the same or similar features, and different reference numerals may be used for the same or similar features.

FIG. 1 is an exploded view of the present invention;

FIG. 2 is a top plan view of the cylindrical body of the present invention;

FIG. 3 is an external view of the swing lever of the present invention;

FIG. 4 is a side view of the check air valve of the present invention;

FIG. 5 is a sectional view taken along line A-A of FIG. 4 in accordance with the present invention;

FIG. 6 is a top view of the check air valve of the present invention;

fig. 7 is a cross-sectional view taken along line C-C of fig. 6 in accordance with the present invention.

Description of reference numerals:

10. a handle; 20. shaft clamping; 30. an O-shaped ring; 40. rotating the rod; 401. a groove; 402. a second opening; 403. a third opening; 404. positioning the convex ribs; 50. a tile-shaped gasket; 60. a cylindrical body; 601. a first opening; 602. opening the convex rib; 603. closing the convex ribs; 70. an umbrella-shaped water sealing sheet; 80. an annular seal gasket; 90. and (4) locking a nut.

Detailed Description

In order to facilitate an understanding of the utility model, specific embodiments thereof will be described in more detail below with reference to the accompanying drawings.

Unless specifically stated or otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. In the case of a real-world scenario incorporating the technical solution of the present invention, all technical and scientific terms used herein may also have meanings corresponding to the purpose of achieving the technical solution of the present invention.

As used herein, unless otherwise specified or defined, "first" and "second" … are used merely for name differentiation and do not denote any particular quantity or order.

As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items, unless specified or otherwise defined.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly secured to the other element or intervening elements may also be present; when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present; when an element is referred to as being "mounted on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "on" another element, it can be directly on the other element or intervening elements may also be present.

As used herein, unless otherwise specified or defined, the terms "comprises," "comprising," and "comprising" are used interchangeably to refer to the term "comprising," and are used interchangeably herein.

It is needless to say that technical contents or technical features which are contrary to the object of the present invention or clearly contradicted by the object of the present invention should be excluded.

As shown in fig. 1 to 7, a check air valve for a bathtub comprises a cylindrical main body 60, a rotary rod 40 arranged inside the cylindrical main body 60, and a handle 10 fixedly connected with the rotary rod 40, wherein one end of the cylindrical main body 60 is provided with a sealing member for one-way air intake, the other end is provided with a fastening member for limiting the rotary rod 40, the cylindrical main body 60 is provided with a first opening 601, the side wall of the rotary rod 40 is provided with a second opening 402, the end part of the rotary rod 40 is provided with a third opening 403, and the third opening 403 faces the sealing member, so that whether the first opening 601, the second opening 402 and the third opening 403 are communicated or not is determined by rotating the handle 10.

As shown in fig. 1, 2, 3 and 5, the rotating rod 40 is installed in the cylindrical body 60, one end of the rotating rod 40 is limited by the inner wall of the cylindrical body 60, the other end is limited by the fastening piece, and the rotating rod 40 can rotate but can not move; the check air valve is arranged on an air suction system of the bathtub, when air needs to be sucked, the rotary handle 10 is rotated to drive the rotary rod 40, the second opening 402 is opposite to the first opening 601, and then the air can enter the air suction system through the first opening 601, the second opening 402, the third opening 403 and the sealing element in sequence; when the air is required to be closed, the handle 10 is rotated to make the second opening 402 of the rotary rod 40 not opposite to the first opening 601, and the connection between the air suction system and the air outside the valve is cut off. Meanwhile, when water in the air suction system flows backwards, the sealing element blocks water flow, and the non-return function is realized. The present invention fixes the rotary rod 40 by the fastening member, and eliminates the locking cover in the prior art, so that the part of the cylindrical main body 60 protruding out of the bathtub wall is reduced, and the valve surface is flush with the inner wall of the bathtub.

As shown in fig. 2 and 7, a groove 401 is formed on the outer side of the end of the rotating rod 40, and an O-ring 30 for sealing is provided in the groove 401. The O-ring 30 improves the sealing of the device and prevents air or water from entering the top of the check air valve. The fastener is a shaft clamp 20, and the shaft clamp 20 is arranged between the cylindrical main body 60 and the rotating rod 40 and is a part which is arranged on a grooved shaft and used for fixing the hole of a part to move in the axial direction.

As shown in fig. 1, fig. 2, fig. 3, and fig. 5, an opening rib 602 and a closing rib 603 are provided on the inner side of the cylindrical main body 60, and a positioning rib 404 is provided on the rotating lever 40, so that when the rotating lever 40 rotates, the positioning rib 404 is limited by the opening rib 602 or the closing rib 603. The first opening 601 is further provided with a tile-shaped sealing gasket 50 for sealing, and the tile-shaped sealing gasket 50 is located between the opening rib 602 and the closing rib 603.

The first opening 601 is positioned on the side wall of the cylindrical main body 60, the opening convex rib 602 and the closing convex rib 603 are arranged along the circumferential direction of the inner wall of the cylindrical main body 60, the tile-shaped sealing gasket 50 is clamped by the opening convex rib 602 and the closing convex rib 603 and is fixed on the circumferential side of the first opening 601, when the rotating rod 40 rotates in the cylindrical main body 60, the positioning convex rib 404 is abutted against the opening convex rib 602, the first opening 601 and the second opening 402 are completely opposite, the air inflow is maximum, and air enters a bathtub air suction system through the third opening 403 and the sealing element after being sucked; when the positioning rib 404 abuts against the closing rib 603, the first opening 601 and the second opening 402 are completely out of opposition to isolate the intake air and the tub intake system from the outside air.

As shown in fig. 1 and 7, the sealing member is an umbrella-shaped water-sealing sheet 70, the umbrella-shaped water-sealing sheet 70 is mounted on the inner wall of the bottom of the cylindrical main body 60, and when air is supplied, a gap is formed between the umbrella-shaped water-sealing sheet 70 and the cylindrical main body 60 to allow air to pass through; when water is sealed, the umbrella-shaped water sealing sheet 70 is tightly attached to the cylindrical main body 60 under the action of water flow to seal the water flow.

The cylindrical main body 60 is further sleeved with an annular sealing gasket 80 and a locking nut 90, the locking nut 90 is used for fixing the check air valve, and the annular sealing gasket 80 is used for sealing the check air valve.

The above embodiments are provided to illustrate, reproduce and deduce the technical solutions of the present invention, and to fully describe the technical solutions, the objects and the effects of the present invention, so as to make the public more thoroughly and comprehensively understand the disclosure of the present invention, and not to limit the protection scope of the present invention.

The above is only a preferred embodiment of the present invention, and it should be noted that the above preferred embodiment should not be considered as limiting the present invention, and the protection scope of the present invention should be subject to the scope defined by the claims. It will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the spirit and scope of the utility model, and these modifications and adaptations should be considered within the scope of the utility model.

Claims

1. The utility model provides a bathtub non return air valve which characterized in that, including the cylindric main part and set up in the inboard swing arm of cylindric main part and with swing arm fixed connection's handle, the one end of cylindric main part is equipped with the sealing member that is used for one-way admission, and the other end is equipped with and is used for the restriction the fastener of swing arm, be equipped with first opening in the cylindric main part, it is equipped with the third opening to be equipped with second opening and tip on the swing arm lateral wall, the third opening orientation the sealing member to the realization is through the rotation the handle decision first opening the second opening with whether the third opening communicates with each other.

2. The bathtub check air valve of claim 1, wherein a groove is formed outside the end of the lever, and an O-ring for sealing is formed in the groove.

3. The bathtub check air valve of claim 1, wherein the fastener is a shaft clip interposed between the cylindrical body and the swing lever.

4. The check air valve for bathtub according to claim 1, wherein an opening rib and a closing rib are provided inside the cylindrical body, and a positioning rib is provided on the rotating lever so that the positioning rib is positioned by the opening rib or the closing rib when the rotating lever rotates.

5. The bathtub check air valve of claim 4, further comprising a gasket for sealing at said first opening, said gasket being positioned between said opening rib and said closing rib.

6. The bathtub check air valve of claim 1, wherein the sealing member is an umbrella-shaped water-sealing flap.

7. The bathtub check air valve of claim 1, wherein the first opening is located on a side wall of the cylindrical body.

8. The bathtub check air valve of claim 1, wherein an annular packing and a locking nut are further sleeved at one end of the cylindrical body.