CN214063891U

CN214063891U - Integrated vertical check valve

Info

Publication number: CN214063891U
Application number: CN202022444454.1U
Authority: CN
Inventors: 傅光良
Original assignee: Zhejiang Huijia Machinery Co ltd
Current assignee: Zhejiang Huijia Machinery Co ltd
Priority date: 2020-10-28
Filing date: 2020-10-28
Publication date: 2021-08-27
Anticipated expiration: 2030-10-28

Abstract

The utility model discloses an integrative vertical check valve, include: the valve body, the valve body includes: an inlet end; the inlet end of the check valve core sleeve is opened and closed through the check valve core, a connecting rod at one side of the check valve core penetrates through the check valve core sleeve, a sealing part at the other side of the check valve core abuts against the front valve body, the sealing part is composed of steps which are distributed in a step surrounding manner from left to right, the diameters of the first step to the third step are increased progressively, the diameters of the third step to the fifth step are increased from small to large, an O-shaped sealing ring is annularly arranged in a groove formed by the fourth step, and the arc-shaped diameter of the fifth step is reduced close to the end part of the front valve body, the cross section of the end part in the length direction is arc-shaped, a sealing step corresponding to the sealing ring is formed in the front valve body, the sealing step is in corner arc transition, the side wall of the check valve core far away from the inlet end is connected with the side wall of the check valve core sleeve through a spring, and arc contact of the arc formed by the arc of the end part of the valve core and the arc of the sealing step corner corresponding to the inlet end is utilized, so that the technical problem is effectively solved.

Description

Integrated vertical check valve

Technical Field

The utility model relates to a check valve technical field, in particular to integrative vertical check valve.

Background

The check valve is a valve with a round valve clack and is operated by the self weight or medium pressure to block the medium from flowing backwards. It belongs to the automatic valve category, also called check valve, reflux valve or isolation valve. The medium flows in from the inlet end and flows out from the outlet end. When the inlet pressure is greater than the sum of the flow resistances, the valve is opened. Otherwise, the valve is closed when the medium flows backwards.

When water is stopped in the existing check valve, the internal part of the check valve is limited by the shape and the structure of components in the valve body, particularly the sealing end part of the valve core is often influenced by impurities in a fluid, so that the sealing effect is influenced because the sealing end part is blocked by fine particles; and because the connecting rod both ends of traditional case all are that the edges and corners are sharp, almost all adopt the right angle, with the perforation sliding connection who forms in the preceding valve body with it corresponds, this design has considerable probability to cause: the valve core cannot penetrate through the front valve body to be clamped due to inaccurate alignment, and the sealing effect of a product is greatly influenced under the condition, so that the scheme is developed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an integrative vertical check valve, the arc that forms through the sealed step corner circular arc that utilizes case tip circular arc to correspond with the entry end is to curved contact to above-mentioned technical problem has been solved effectively.

The above technical purpose of the present invention can be achieved by the following technical solutions:

an integrated vertical check valve comprising: a valve body, the valve body comprising: an inlet end; the inlet end of the check valve core is connected with the check valve core sleeve through a check valve core, a connecting rod on one side of the check valve core penetrates through the check valve core sleeve, a sealing part on the other side of the check valve core abuts against the front valve body, the sealing part is composed of steps distributed in a stepped surrounding manner from left to right, the diameters of the first step to the third step are increased progressively, the diameters of the third step to the fifth step are increased progressively, an O-shaped sealing ring is arranged around a groove formed by the fourth step, the fifth step is reduced in a circular arc shape close to the end part of the front valve body, the section of the end part in the length direction is in an arc shape, a sealing step corresponding to the sealing ring is formed in the front valve body, the corner of the sealing step is in circular arc transition, the side wall of the check valve core far away from the inlet end of the check valve is connected with the side wall of the check valve core sleeve through a spring, and the spring has the effect of resetting the check valve core; and an outlet end.

Preferably, the return spring is sleeved on a connecting rod of the check valve core (3), one end of the return spring abuts against the check valve core sleeve, and the other end of the return spring abuts against the sealing component.

Preferably, a first thread is arranged on the side wall of the valve body close to the outlet end and used for connecting with an external object.

Preferably, a second thread is arranged on the side wall, close to the outlet end, of the valve body and is used for connecting with an external object.

Has the advantages that: the arc formed by the sealing step corner arc corresponding to the inlet end and the end part arc of the valve core is in contact with the arc, so that the sealing assembly can be effectively prevented from being blocked, the sealing effect is improved, the resetting accuracy and precision between the valve core and the valve body can be greatly improved by the design, and the sealing effect is further improved. Compared with the existing product, the sealing device has the advantages of good sealing effect, long service life and reduced maintenance and replacement cost.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment;

fig. 2 is a schematic view of the internal structure of the valve body of the embodiment.

Reference numerals: 1. a valve body; 2. an inlet end; 3. a check valve cartridge; 4. a check valve core sleeve; 5. an O-shaped sealing ring; 6. a spring; 7. an outlet end; 8. a first thread; 9. a second thread; 10. a connecting rod; 11. and a sealing member.

Detailed Description

The following is only the preferred embodiment of the present invention, the protection scope is not limited to this embodiment, and all technical solutions belonging to the idea of the present invention should belong to the protection scope of the present invention. It should also be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and such modifications and decorations should also be regarded as the protection scope of the present invention.

Referring to fig. 1 to 2, an integrated vertical check valve includes: valve body 1, valve body 1 includes: an inlet end 2; the inlet end 2 and the check valve core sleeve 4 are opened and closed through a check valve core 3, a connecting rod 1010 on one side of the check valve core 3 penetrates through the check valve core sleeve 4, a sealing part 11 on the other side abuts against the front valve body 1, the sealing part 11 is composed of steps distributed in a stepped surrounding manner from left to right, the diameters of the first step to the third step are gradually increased, the diameters of the third step to the fifth step are gradually increased, a groove formed by the fourth step is annularly provided with an O-shaped sealing ring 5, the end part of the fifth step, which is close to the front valve body 1, is in an arc shape, the section of the end part in the length direction is in an arc shape, a sealing step corresponding to the sealing ring is formed in the front valve body 1, the sealing step is in arc transition at a corner, the check valve core 3 is provided with a reset; and an outlet end 7. The reset spring 6 is sleeved on the connecting rod 10 of the check valve core 3, one end of the reset spring 6 is abutted against the check valve core sleeve 4, and the other end of the reset spring is abutted against the sealing part. Specifically, a first thread 8 is arranged on the side wall, close to the outlet end 7, of the valve body 1, and the first thread 8 is used for being connected with an external object and is connected with the external object through the first thread 8. Specifically, the valve body 1 is provided with a second thread 9 on the side wall close to the outlet end 7, and the second thread 9 is used for connecting with external articles and can be connected with the external articles through the second thread 9.

Claims

1. An integral vertical check valve, comprising:

a valve body (1), the valve body (1) comprising:

an inlet end (2);

the inlet end (2) and the check valve core sleeve (4) are opened and closed through the check valve core (3), a connecting rod (10) on one side of the check valve core (3) penetrates through the check valve core sleeve (4), a sealing part (11) on the other side abuts against the front valve body (1), the sealing part (11) is composed of steps which are distributed in a stepped surrounding manner from left to right, the diameters of the first step to the third step are gradually increased, the diameters of the third step to the fifth step are gradually increased, an O-shaped sealing ring (5) is annularly arranged in a groove formed by the fourth step, the arc shape of the end part of the fifth step close to the front valve body (1) is reduced, the section of the end part in the length direction is arc-shaped, a sealing step corresponding to the sealing ring is formed in the front valve body (1), the corner of the sealing step is in arc transition, and a reset spring (6) is arranged on the check valve core (3);

and an outlet end (7).

2. The integrated, vertical check valve of claim 1, wherein: the reset spring (6) is sleeved on the connecting rod of the check valve core (3), one end of the reset spring (6) is abutted against the check valve core sleeve (4), and the other end of the reset spring is abutted against the sealing part.

3. The integrated, vertical check valve of claim 1, wherein: and a first thread (8) is arranged on the side wall of the valve body (1) close to the outlet end (7).

4. The integrated, vertical check valve of claim 1, wherein: and a second thread (9) is arranged on the side wall of the valve body (1) close to the outlet end (7).