CN214093178U

CN214093178U - Check valve with self-closing rubber check valve core

Info

Publication number: CN214093178U
Application number: CN202022047778.1U
Authority: CN
Inventors: 马晓宇
Original assignee: Hebei Xingshui Valve Manufacturing Group Co ltd
Current assignee: Hebei Xingshui Valve Manufacturing Group Co ltd
Priority date: 2020-09-17
Filing date: 2020-09-17
Publication date: 2021-08-31
Anticipated expiration: 2030-09-17

Abstract

The utility model discloses a check valve with self-closing rubber check valve core, including last body, the downside of going up the body is closely laminated and is had lower body, go up the body, connection structure is installed to both sides around the body down, go up the body, the joint groove has been seted up to the internal surface of body down, joint groove and last body, the internal surface of body is closely laminated and is had interior bushing pipe down, the inboard joint of interior bushing pipe has check valve core, check valve core is including closely laminating at the inboard self-closing rubber of bushing pipe recess, self-closing rubber is conical shell shape structure, closely laminating in the inside left side of self-closing rubber has the support ring, the even fixed mounting in right surface of support ring has the backup pad, the quantity of backup pad is three. The device can clamp and fix and support the self-closing rubber, and avoids the phenomenon that the self-closing rubber is squeezed and shriveled or even damaged when medium reverse pressure is too large, so that the non-return conveying capacity is damaged, and the split structure is convenient for internal loading and unloading maintenance.

Description

Check valve with self-closing rubber check valve core

Technical Field

The utility model relates to a self-closing rubber check case technical field specifically is a check valve with self-closing rubber check case.

Background

The check valve can prevent the medium from flowing reversely, and usually a movable valve core and a valve seat matched with the movable valve core are arranged, when the water flow (or other medium flows) is in a forward flow, the medium pressure pushes the movable valve core away from the valve seat to enable the check valve to be in an open state, and when the water flow is in a reverse flow, the medium pressure pushes the movable valve core towards the valve seat to enable the check valve to be in a closed state.

The non-return sealing pair can be in various forms, the non-return valve for medium non-return is realized by matching self-closing rubber with the valve body, the self-closing rubber is simple in structure, when medium reverse pressure is too large, the self-closing rubber is easily crushed or even damaged, the non-return conveying capacity is damaged, and the loading, unloading and maintenance are difficult.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a check valve with self-closing rubber check case to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the check valve with the self-closing rubber check valve core comprises an upper pipe body, wherein a lower pipe body is tightly attached to the lower side of the upper pipe body, connecting structures are mounted on the front side and the rear side of the upper pipe body and the lower pipe body, clamping grooves are formed in the inner surfaces of the upper pipe body and the lower pipe body, inner lining pipes are tightly attached to the clamping grooves and the inner surfaces of the upper pipe body and the lower pipe body, the check valve core is clamped on the inner side of each inner lining pipe and comprises self-closing rubber tightly attached to the inner side of a groove of the inner lining pipe, the self-closing rubber is of a conical shell-shaped structure, a support ring is tightly attached to the left side of the inside of the self-closing rubber, support plates are uniformly and fixedly mounted on the right surface of the support ring, and the number of the support plates is three.

Preferably, the width of the supporting plate is gradually reduced from left to right, and the distance between the right end of the supporting plate and the right end of the interior of the self-closing rubber is two centimeters.

Preferably, the connecting structure comprises connecting plates fixedly mounted at the lower ends of the front side and the rear side of the upper pipe body and the upper ends of the front side and the rear side of the lower pipe body, the connecting plates are tightly attached to the upper side and the lower side, through holes are uniformly formed in the outer surfaces of the connecting plates on the upper side and the lower side, and bolt groups are mounted inside the through holes.

Preferably, the outer surface of the upper pipe body is carved with an installation pointing mark.

Preferably, the lining pipe is made of an anti-corrosion and wear-resistant material.

Compared with the prior art, the beneficial effects of the utility model are that: the self-closing rubber check valve core and the check valve thereof can clamp, fix and support self-closing rubber, avoid the phenomenon that the self-closing rubber is squeezed or shriveled or even damaged when medium reverse pressure is too large, and destroy the check conveying capacity, and the split structure facilitates internal loading and unloading maintenance.

Drawings

Fig. 1 is a schematic cross-sectional view of the structure of the present invention.

Fig. 2 is a front view of the present invention.

In the figure: the device comprises an upper pipe body 1, a lower pipe body 2, an inner lining pipe 3, a clamping groove 4, a check valve core 5, a support ring 51, self-closing rubber 52, a support plate 53, a connecting structure 6, a connecting plate 61, a through hole 62, a bolt group 63 and an installation orientation mark 7.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 and fig. 2, the present invention provides a technical solution: the utility model provides a check valve with self-closing rubber check case, including upper tube body 1, the downside of upper tube body 1 closely laminates and has lower body 2, upper tube body 1, connection structure 6 is installed to the front and back both sides of lower body 2, upper tube body 1, joint groove 4 has been seted up to the internal surface of lower body 2, joint groove 4 and upper tube body 1, the internal surface of lower body 2 closely laminates and has interior bushing 3, the inboard joint of interior bushing 3 has check case 5, check case 5 is including closely laminating in the self-closing rubber 52 of 3 recess inboards of interior bushing pipe, self-closing rubber 52 is the cone shell structure, the inside left side of self-closing rubber 52 closely laminates and has support ring 51, the even fixed mounting in right surface of support ring 51 has backup pad 53, the quantity of backup pad 53 is three.

The upper pipe body 1 and the lower pipe body 2 can be installed into an integral pipe through a connecting structure 6, and the lining pipe 3 is positioned and installed at the inner side through the clamping groove 4; the self-closing rubber 52 in the conical shell-shaped structure in the check valve core 5 plays a role in one-way conveying, the support ring 51 plays a role in positioning and installing the self-closing rubber 52, and the support plate 53 can play a role in supporting the self-closing rubber 52, so that the self-closing rubber 52 is prevented from being extruded and deformed or even damaged when the self-closing rubber is subjected to overlarge medium reverse pressure.

The width of the supporting plate 53 is gradually reduced from left to right, and the distance between the right end of the supporting plate 53 and the right end inside the self-closing rubber 52 is two centimeters.

The support plate 53 is made to have a small area to avoid affecting the passage of the internal medium through the self-closing rubber 52.

The connecting structure 6 comprises connecting plates 61 fixedly mounted at the lower ends of the front side and the rear side of the upper pipe body 1 and the upper ends of the front side and the rear side of the lower pipe body 2, the connecting plates 61 at the upper side and the lower side are tightly attached, through holes 62 are uniformly formed in the outer surfaces of the connecting plates 61 at the upper side and the lower side, and bolt groups 63 are mounted inside the through holes 62.

The upper and lower connecting plates 61 can be attached to each other through the through holes 62 and the bolt sets 63 of the connecting structure 6, and the upper and

lower pipes

1 and 2 are engaged with each other.

The outer surface of the upper pipe body 1 is carved with an installation directional mark 7.

Through the instruction of installation directional sign 7, conveniently when whole installation, install with correct check case 5 direction.

The lining pipe 3 is made of anti-corrosion and wear-resistant material.

The lining pipe 3 has good corrosion resistance and wear resistance, and is prevented from being corroded or worn by the medium flowing through the inside, and the service life is prolonged.

The working principle is as follows: the upper pipe body 1 and the lower pipe body 2 can install the upper side connecting plate 61 and the lower side connecting plate 61 through the through hole 62 and the bolt group 63 in the connecting structure 6, so that the upper pipe body 1 and the lower pipe body 2 are buckled and installed into an integral pipe; the lining pipe 3 is positioned and installed on the inner side through the clamping groove 4, the self-closing rubber 52 in the non-return valve core 5 in a conical shell structure plays a role in one-way conveying, the supporting ring 51 plays a role in positioning and installing the self-closing rubber 52, the supporting plate 53 can play a role in supporting the self-closing rubber 52, and the self-closing rubber 52 is prevented from being extruded and deformed or even damaged when being subjected to medium reverse pressure.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a check valve with self-closing rubber check case which characterized in that: comprises an upper pipe body (1), a lower pipe body (2) is tightly attached to the lower side of the upper pipe body (1), the front side and the rear side of the upper pipe body (1) and the lower pipe body (2) are provided with connecting structures (6), the inner surfaces of the upper pipe body (1) and the lower pipe body (2) are provided with clamping grooves (4), the inner lining pipe (3) is tightly attached to the inner surfaces of the clamping groove (4) and the upper pipe body (1) and the lower pipe body (2), the inner side of the lining pipe (3) is clamped with a check valve core (5), the check valve core (5) comprises self-closing rubber (52) tightly attached to the inner side of the groove of the lining pipe (3), the self-closing rubber (52) is in a conical shell structure, the left side inside the self-closing rubber (52) is tightly attached with a support ring (51), the support ring is characterized in that support plates (53) are uniformly and fixedly mounted on the right surface of the support ring (51), and the number of the support plates (53) is three.

2. A check valve having a self-closing rubber check valve cartridge as defined in claim 1 wherein: the width of the supporting plate (53) is gradually reduced from left to right, and the distance between the right end of the supporting plate (53) and the right end inside the self-closing rubber (52) is two centimeters.

3. A check valve having a self-closing rubber check valve cartridge as defined in claim 1 wherein: the connecting structure (6) comprises connecting plates (61) fixedly mounted at the lower ends of the front side and the rear side of the upper pipe body (1) and the upper ends of the front side and the rear side of the lower pipe body (2), the connecting plates (61) are tightly attached to the upper side and the lower side, through holes (62) are uniformly formed in the outer surfaces of the connecting plates (61) on the upper side and the lower side, and bolt groups (63) are mounted inside the through holes (62).

4. A check valve having a self-closing rubber check valve cartridge as defined in claim 1 wherein: the outer surface of the upper pipe body (1) is carved with an installation pointing mark (7).

5. A check valve having a self-closing rubber check valve cartridge as defined in claim 1 wherein: the lining pipe (3) is made of an anticorrosive wear-resistant material.