CN217301753U

CN217301753U - Check valve

Info

Publication number: CN217301753U
Application number: CN202220144457.XU
Authority: CN
Inventors: 谢炜; 杜海波; 赵郑前; 舒胜滔
Original assignee: Arrow Home Group Co Ltd
Current assignee: Arrow Home Group Co Ltd
Priority date: 2022-01-19
Filing date: 2022-01-19
Publication date: 2022-08-26
Anticipated expiration: 2032-01-19

Abstract

The utility model discloses a check valve, which comprises a valve body, wherein the valve body comprises a check rubber ring, a water outlet base and a valve cover covering the water outlet base, the water outlet base is communicated with the valve cover, a water inlet is arranged in the valve cover, and a water outlet is arranged in the water outlet base; the check rubber ring is positioned between the water outlet base and the valve cover, and a cross-shaped opening is formed in the check rubber ring; the valve cover is internally provided with star-shaped supporting ribs matched with the cross-shaped opening, when water flows through, water flows through the cross-shaped opening and props the cross-shaped opening open, and when the water flows back, the bottom end surfaces of the star-shaped supporting ribs are matched and abutted with the inner end surface of the non-return rubber ring, so that the cross-shaped opening is tightly closed and sealed. The utility model discloses a check valve's one-way water-through leakproofness is good, and overall structure is simple, and convenient to detach installs, and the part is few and with low costs.

Description

Check valve

Technical Field

The utility model relates to a technical field of bathroom product especially relates to a check valve.

Background

With the development of the industry, the check valve is widely applied to bathroom products, and is used for preventing dirty water in shower equipment from flowing back and avoiding series flow pollution of shower water and domestic water. The check valve that generally uses on the market is comparatively complicated in structure, and required part is many, leads to with high costs, uses elastomeric element and O type circle cooperation to realize compressing tightly sealed moreover often, because space restriction, the check valve of shower usefulness is all smaller, and the volume of compressing tightly of O type circle is limited, and long-term the use has the infiltration risk, makes check valve's one-way water-passing leakproofness not good enough, leads to dirty water backward flow, brings a great deal of inconvenience in the shower process for the user.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a check valve is provided, its one-way water-passing leakproofness is good, overall structure is simple, the convenient to detach installation, and the part is few and with low costs.

In order to solve the technical problem, the utility model provides a check valve, which comprises a valve body, wherein the valve body comprises a check rubber ring, a water outlet base and a valve cover covering the water outlet base;

the check rubber ring is positioned between the water outlet base and the valve cover, and a cross-shaped opening is formed in the check rubber ring;

the valve cover is internally provided with star-shaped supporting ribs matched with the cross opening, when water flows through, water flows through the cross opening and props open the cross opening, and when the water flows back, the bottom end surfaces of the star-shaped supporting ribs are matched and abutted with the inner end surface of the non-return rubber ring, so that the cross opening is tightly closed and sealed.

As an improvement of the scheme, the star-shaped supporting ribs are at least three star-shaped supporting ribs, and the center lines of the star-shaped supporting ribs are coincided with the center line of the cross-shaped opening.

As an improvement of the scheme, the non-return rubber ring comprises a convex circular ring part and a convex circular arc part arranged in the convex circular ring part, the cross opening is arranged on the convex circular arc part, a first positioning groove is arranged in the flat end of the convex circular ring part, and a second positioning groove is arranged between the convex end of the convex circular ring part and the convex circular arc part;

the inner side wall of the valve cover is provided with a first positioning lug, and the first positioning lug is matched and connected with the first positioning groove;

the upper end part of the water outlet base is provided with a second positioning lug which is connected with the second positioning groove in a matching way.

As the improvement of the scheme, the star-shaped supporting ribs are positioned inside the convex arc part, and when water flows back, the bottom end surfaces of the star-shaped supporting ribs are in matched butt joint with the inner end surface of the convex arc part, so that the cross-shaped opening can be tightly closed and sealed.

As an improvement of the scheme, a gap is arranged between the bottom end surface of the star-shaped supporting rib and the inner end surface of the convex arc part.

As an improvement of the scheme, the middle parts of the bottom end surfaces of the star-shaped supporting ribs and the middle parts of the convex arc parts are both planes, and the bottom end surfaces of the corner strips of the star-shaped supporting ribs are arc surfaces.

As the improvement of the scheme, the outer side wall of the water outlet base is provided with a circular ring lug, and the inner side wall of the valve cover is provided with a circular ring groove which is connected with the circular ring lug in a matched manner.

As an improvement of the scheme, the star-shaped supporting ribs are pentagonal supporting ribs.

As an improvement of the scheme, the non-return rubber ring is made of silica gel.

As the improvement of the scheme, the outer side wall of the valve cover is provided with a circular sealing ring.

Implement the utility model discloses, following beneficial effect has:

the utility model discloses a check valve is when leading to water, and rivers flow into to the check rubber ring from the valve gap in, and rivers pass the cross opening and strut the cross opening, make rivers flow from the delivery port of water base. When water flows back, the bottom end surfaces of the star-shaped supporting ribs are in matched butt joint with the inner end surface of the check rubber ring, the cross-shaped opening can be guaranteed to be tightly sealed, the sealing stability is improved, and a reverse sealing effect is achieved, so that the one-way water-flowing tightness of the check valve is achieved, and the one-way water-flowing tightness is good. And the utility model has the characteristics of simple structure has convenient to detach installation, and the part is few and with low costs etc.

Drawings

Fig. 1 is an exploded schematic view of a check valve provided by the present invention;

fig. 2 is a schematic structural diagram of the check valve provided by the present invention;

fig. 3 is a schematic cross-sectional view of the check valve provided by the present invention.

Detailed Description

To make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings. Only this statement, the utility model discloses the upper and lower, left and right, preceding, back, inside and outside etc. position words that appear or will appear in the text only use the utility model discloses an attached drawing is the benchmark, and it is not right the utility model discloses a concrete restriction.

As shown in fig. 1-3, the specific embodiment of the present invention provides a check valve, which comprises a valve body 1, wherein the valve body 1 comprises a check rubber ring 2, a water outlet base 3 and a valve cover 4 covering the water outlet base 3, the water outlet base 3 is communicated with the valve cover 4, a water inlet 41 is arranged in the valve cover 4, and a water outlet 31 is arranged in the water outlet base 3. The check rubber ring 2 is positioned between the water outlet base 3 and the valve cover 4, the check rubber ring 2 comprises a convex circular ring part 21 and a convex circular arc part 22 arranged in the convex circular ring part 21, and the cross-shaped opening 23 is arranged on the convex circular arc part 22. The valve cover 4 is provided with star-shaped support ribs 42 inside which the cross-shaped openings 23 are fitted, the star-shaped support ribs 42 being located inside the convex arc 22. When water flows, water flows through the cross opening 23 and props the cross opening 23 outwards, when the water flows back, the bottom end face of the star-shaped supporting rib 42 is in matched butt joint with the inner end face of the convex arc part 22 in the check rubber ring 2, so that the cross opening 23 is pressed inwards for sealing, the sealing stability is improved, the reverse tight sealing effect is achieved, the one-way water flowing sealing effect of the check valve is achieved, and the one-way water flowing sealing effect is good. And the utility model has the characteristics of simple structure has convenient to detach installation, and the part is few and with low costs etc.

In particular, the star-shaped support ribs 42 are at least three-cornered star-shaped support ribs 42, the center line of the star-shaped support ribs 42 coinciding with the center line of the cross-shaped opening 23. Whereas the star-shaped support ribs 42 in this embodiment are pentagonal. The middle of the bottom end surface of the star-shaped supporting rib 42 and the middle of the convex arc part 22 are both planes 421, and the bottom end surface of each corner of the star-shaped supporting rib 42 is an arc 422. A gap 6 is arranged between the bottom end surface of the star-shaped supporting rib 42 and the inner end surface of the convex arc part 22.

When water flows back, the water flow is in contact with the non-return rubber ring 2, and due to the structure that the periphery of the inner end face of the convex arc part 22 is the arc surface 422 and the middle part of the inner end face of the convex arc part 22 is the plane 421, and the gap 6 exists between the bottom end face of the star-shaped supporting rib 42 and the inner end face of the convex arc part 22, the inner end face of the convex arc part 22 and the cross-shaped opening 23 are pressed inwards and sealed under the action of water pressure. When the water pressure of rivers further increases, protruding arc portion 22 self intensity is not enough, makes the interior terminal surface of protruding arc portion 22 and star support rib 42's bottom face contact and cooperation butt, plays the supporting role, makes protruding arc portion 22 can not further warp to make cross opening 23 keep inside to compress tightly sealed state, guaranteed sealing stability. Thereby ensuring the one-way water-through sealing effect of the check valve to be good.

The convex arc portion 22 is divided into four opening and closing portions 24 by the cross opening 23, each corner of the star-shaped support rib 42 is staggered from the cross opening 23, and bottom end surfaces of a plurality of corners of the star-shaped support rib 42 are respectively used for being correspondingly matched and abutted with inner end surfaces of the four opening and closing portions 24. Or partial angle bars of the star-shaped supporting ribs 42 are superposed with partial opening edges of the cross-shaped opening 23, and the bottom end surfaces of the partial angle bars of the star-shaped supporting ribs 42 are matched and abutted with the inner end surfaces between any two corresponding opening and closing parts 24; meanwhile, other corner strips of the star-shaped support ribs 42 are staggered with the cross opening 23, and bottom end faces of the other corner strips of the star-shaped support ribs 42 are respectively used for being correspondingly matched and abutted with inner end faces of the four opening and closing parts 24 or inner end faces of the corresponding opening and closing parts 24, namely, part of corner strips of the star-shaped support ribs 42 are overlapped with the cross opening 23, and the other corner strips are staggered with the cross opening 23. Wherein, the middle bottom end surface of the star-shaped supporting rib 42 is always in fit abutment with the middle inner end surface surrounded by the four opening and closing parts 24. When water flows back, the convex arc part 22 and the cross opening 23 can be pressed inwards and sealed in a supporting and abutting mode of the star-shaped supporting ribs 42, so that a reverse tight sealing effect is guaranteed, and the sealing stability of one-way water passing is improved. In addition, the water flow can flow out from gaps among the corner strips in the star-shaped supporting ribs 42, so that smooth circulation and large circulation quantity of the water flow are ensured.

Preferably, in other embodiments, the preferred opening manner of the convex arc portion 22 may also include, but is not limited to, a triangular star opening or a pentagonal star opening, and the working principle thereof is the same as or similar to the above-mentioned principle, and will not be described herein again. It should be noted that the number of the star-shaped openings of the convex arc portion 22 should be selected according to actual conditions, but the sealing stability of one-way water passing is reduced after a certain number range is exceeded, and the complexity and the processing difficulty of the overall structure are increased.

In order to realize the quick positioning and fixed installation of the non-return rubber ring 2. A first positioning groove 25 is arranged in the flat end of the convex circular ring part 21, and a second positioning groove 26 is arranged between the convex end of the convex circular ring part 21 and the convex circular arc part 22; the inner side wall of the valve cover 4 is provided with a first positioning bump 43, and the first positioning bump 43 is connected with the first positioning groove 25 in a matching way; the upper end of the water outlet base 3 is provided with a second positioning lug 32, and the second positioning lug 32 is connected with the second positioning groove 26 in a matching way, so that the quick positioning and the fixed installation of the check rubber ring 2 are realized. And protruding circular ring portion 21 plays sealed effect, makes non return rubber ring 2 respectively with valve gap 4 and play water base 3 sealing connection, improves the sealing stability of valve body 1.

In order to realize the relative fixation of the water outlet base 3 and the valve cover 4. The outer side wall of the water outlet base 3 is provided with a circular convex block 33, the inner side wall of the valve cover 4 is provided with a circular groove 44 which is connected with the circular convex block 33 in a matching way, and the water outlet base 3 and the valve cover 4 can be relatively fixed through the matching connection of the circular convex block 33 and the circular groove 44.

Preferably, the non-return rubber ring 2 is made of silica gel.

Preferably, the outer side wall of the valve cover 4 is provided with a circular sealing ring 5, and the circular sealing ring 5 plays a sealing role when the valve body 1 is used for being installed in a corresponding water outlet device.

The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the invention, which is defined by the appended claims.

Claims

1. A check valve is characterized by comprising a valve body, wherein the valve body comprises a check rubber ring, a water outlet base and a valve cover covering the water outlet base;

the valve cover is internally provided with star-shaped supporting ribs matched with the cross-shaped opening, when water flows through the valve cover, water flows through the cross-shaped opening to prop the cross-shaped opening, and when the water flows back, the bottom end surfaces of the star-shaped supporting ribs are matched and abutted with the inner end surface of the non-return rubber ring, so that the cross-shaped opening is tightly closed and sealed.

2. The non-return valve according to claim 1, characterized in that the star-shaped support ribs are at least three angular star-shaped support ribs, the centre lines of which coincide with the centre line of the cross-shaped opening.

3. The check valve according to claim 2, wherein the check rubber ring comprises a convex circular ring portion and a convex circular arc portion arranged in the convex circular ring portion, the cross opening is arranged on the convex circular arc portion, a first positioning groove is arranged in a flat end of the convex circular ring portion, and a second positioning groove is arranged between the convex end of the convex circular ring portion and the convex circular arc portion;

a first positioning lug is arranged on the inner side wall of the valve cover and is in fit connection with the first positioning groove;

and a second positioning lug is arranged at the upper end part of the water outlet base and is in fit connection with the second positioning groove.

4. The non-return valve according to claim 3, characterized in that said star-shaped support ribs are located inside said convex circular arc, and when the water flows back, the bottom end surfaces of said star-shaped support ribs are in fit abutment with the inner end surfaces of said convex circular arc, enabling the cross-shaped opening to be tightly sealed.

5. The non-return valve according to claim 4, characterized in that a gap is provided between the bottom end surface of the star-shaped support rib and the inner end surface of the convex arc portion.

6. The non-return valve according to claim 4, wherein the middle portions of the bottom end surfaces of the star-shaped support ribs and the middle portions of the convex arc portions are both flat surfaces, and the bottom end surfaces of the respective corner bars of the star-shaped support ribs are arc surfaces.

7. The check valve of claim 1, wherein the outer sidewall of the outlet base is provided with a circular protrusion, and the inner sidewall of the valve cover is provided with a circular groove in fit connection with the circular protrusion.

8. The non-return valve of claim 6, wherein the star-shaped support ribs are pentagonal support ribs.

9. The check valve according to claim 1, wherein the check rubber ring is made of silica gel.

10. The non-return valve of claim 1, wherein the outer side wall of the valve cover is provided with a circular sealing ring.