CN213332582U

CN213332582U - Check valve

Info

Publication number: CN213332582U
Application number: CN202021611869.7U
Authority: CN
Inventors: 赵福华; 赵俊; 黄泽明
Original assignee: Hangzhou Simon Electric Appliance Co ltd
Current assignee: Hangzhou Simon Electric Appliance Co ltd
Priority date: 2020-08-06
Filing date: 2020-08-06
Publication date: 2021-06-01
Anticipated expiration: 2030-08-06

Abstract

The utility model provides a check valve, the on-line screen storage device comprises a base, the valve member, installation component and fire prevention shutting structure, dig on the base and be equipped with the flue hole, the valve member is installed on the base, with flue hole looks adaptation, be used for opening and shutting the flue hole, fire prevention shutting structure and valve member triggerable formula are connected, when check valve ambient temperature is too high, trigger fire prevention shutting structure, fire prevention shutting structure is with the valve member locking, it is indoor to prevent that flame or high temperature from passing through check valve inflow, the installation component is installed to the symmetry in pairs on the terminal surface of base, in order to carry out fixed mounting with this check valve.

Description

Check valve

Technical Field

The utility model belongs to the check valve field, concretely relates to check valve with shutting structure.

Background

The flue check valve is also called a reverse flow valve, a check valve, a back pressure valve and a check valve. The valve is opened and closed automatically by the force produced by the medium flowing in the pipeline, and is one automatic valve with non-return valve for pipeline system to prevent medium from flowing backwards and suitable for various kinds of medium pipeline. The check valve is arranged on the pipeline to form one of the fluid components of the complete pipeline, and the flue check valve is also called an inner wall hood and is also an environment-friendly product popularized by the construction department. The method is widely applied to modern housing construction. The generation of the flue check valve solves a great problem for novel high-grade houses. It can prevent the oil smoke refluence, can play the connection effect of pipeline again.

In the prior art, the opening modes of valves installed on a valve body are single, and the problems generally exist, although the upturned valve is reset by gravity and a return spring, and the valve is closed by a vertical folded edge, so that the characteristic of strong sealing performance is realized, the elasticity of the return spring is generally difficult to control, the wind resistance coefficient is too large when the elasticity is too large, the risk that the valve cannot be completely opened exists, and the valve cannot be closed tightly when the elasticity is too small; when the valve is closed, because the closing stress point of the valve is not positioned in the center of the valve, a larger gap exists in a closing plane, and the valve is directly subjected to smoke leakage; although the downward-turning valve is convenient to open, the fireproof locking structure is relatively complex and has failure risks, potential safety hazards exist, and the flat-inclined valve closing structure adopts plane contact closing to have large smoke leakage risks, so that the check valve is smoke-proof, and the fireproof performance is greatly reduced.

Disclosure of Invention

To above not enough, the utility model aims to solve the technical problem that a check valve is provided, this check valve can be according to installation environment selection valve turn over or turn over two kinds of open states down to this check valve has the shutting result, dies the valve lock when taking place danger, improves this check valve's security performance.

In order to solve the technical problems, the utility model adopts the technical proposal that,

the utility model provides a check valve, includes base, valve member, installation component and fire prevention shutting structure, digs on the base and is equipped with the flue hole, and the valve member is installed on the base, and with flue hole looks adaptation, fire prevention shutting structure and valve member triggerable formula are connected, and the installation component is installed to the pairwise symmetry on the terminal surface of base to this check valve of installation.

Furthermore, the valve component comprises a valve, a rotating shaft and a valve seat, the valve seat is fixedly arranged on the base, and the valve is rotatably connected with the base through the rotating shaft.

Further, the valve seat is fixedly installed at the upper end of the flue hole, and correspondingly, the fireproof locking structure is fixedly installed at the upper half part of the flue hole.

Further, fire prevention shutting structure is including shutting mount pad, shutting shaping pole, first fuse link and first shutting spring, and shutting mount pad fixed mounting is in flue hole one side, and the shutting shaping pole rotates to be installed on the shutting mount pad, and first shutting spring is connected with shutting mount pad and shutting shaping pole respectively, and first fuse link is respectively with the tip fixed connection of valve seat and shutting shaping pole.

Furthermore, the end part of the locking mounting seat is provided with a mounting step, a locking rod mounting hole is dug in the mounting step, and the locking forming rod is rotatably mounted in the locking rod mounting hole.

Furthermore, a mounting seat is connected to the locking mounting seat, a mounting seat hole is formed in the mounting seat in a digging mode, the locking forming rod is connected with the locking rod mounting hole and the mounting seat hole respectively, and the first locking spring is mounted between the mounting seat and the mounting step.

Furthermore, a clamping groove is dug in the installation step, and a clamping protrusion is arranged on the side wall of the clamping groove.

Further, valve seat fixed mounting installs the rebound spring at the lower extreme in flue hole in the pivot, and the rebound spring is connected with valve seat, valve respectively to make the valve kick-back, correspond, fire prevention shutting structure installs on the valve seat.

Furthermore, the fireproof locking structure comprises a second locking spring and a second fuse link, the second locking spring is sleeved on the rotating shaft and is respectively connected with the second fuse link and the valve seat, and the second fuse link is fixedly connected to the valve seat.

Further, the installation component comprises a connecting seat and a clamping spring, the connecting seat is fixedly installed on the end face of the base, and the clamping spring is rotatably installed on the connecting seat.

The beneficial effects of the utility model are that, (1) when check valve ambient temperature is too high, trigger the fire prevention shutting structure, the valve subassembly locking of fire prevention shutting structure prevents that flame or high temperature from flowing into indoorly through the check valve, effectively improves the security performance of this check valve.

(2) The check valve has two optional opening modes, and has uniform stress and strong sealing performance. The check valve of the upturning valve realizes the characteristics of resetting only by gravity, increased ventilation area and small wind resistance coefficient; the downward-turning type realizes the characteristics of simple reset structure and fireproof locking structure.

Drawings

Fig. 1 is a schematic structural diagram of the first embodiment.

Fig. 2 is a schematic structural view of fig. 1 after being rotated by a certain angle.

Fig. 3 is a partial enlarged view at a.

Fig. 4 is an exploded view of fig. 1.

Fig. 5 is a schematic structural diagram of the second embodiment.

Fig. 6 is a partial enlarged view at B.

Reference numerals: base 1, valve component 2, installation component 3, fire prevention shutting structure 4, flue hole 5, valve 6, pivot 7, valve seat 8, shutting mount pad 9, shutting shaping pole 10, first fuse-link 11, first locking spring 12, installation step 13, shutting pole mounting hole 14, mount pad 15, mount pad hole 16, joint groove 17, joint arch 18, connecting seat 19, clamping spring 20, second locking spring 21, second fuse-link 22, rebound spring 23.

Detailed Description

The present invention will be further described with reference to the accompanying drawings.

Example one

In this embodiment, the opening mode of the valve assembly 2 in the check valve is an upturned type.

The utility model provides a check valve, the on-line screen storage device comprises a base 1, valve component 2, installation component 3 and fire prevention shutting structure 4, dig on the base and be equipped with flue hole 5, valve component 2 installs on base 1, with flue hole 5 looks adaptation, a switch is carried out to flue hole 5, fire prevention shutting structure 4 is connected with the formula that valve component 2 can trigger, when check valve ambient temperature is too high, trigger fire prevention shutting structure 4, fire prevention shutting structure 4 is with valve component 2 locking, it is indoor to prevent that flame or high temperature from flowing into through the check valve, installation component 3 is installed to the symmetry in pairs on base 1's the terminal surface, in order to carry out fixed mounting with this check valve.

Valve component 2 includes valve 6, pivot 7 and valve seat 8, and valve seat 8 fixed mounting is on base 1, and valve 6 rotates through pivot 7 with base 1 to be connected, through valve 6 that can relatively rotate, is convenient for carry out the switch to flue hole 5.

Valve seat 8 fixed mounting corresponds in the upper end of flue hole 5, and fire prevention shutting structure 4 fixed mounting is in the first half of flue hole 5, and fire prevention shutting structure 4's position and valve seat 8's mounted position looks adaptation are convenient for fire prevention shutting structure 4 carries out the locking to the valve, improves this check valve's security performance.

Fireproof locking structure 4 is including shutting mount pad 9, shutting shaping pole 10, first fuse link 11 and

first shutting spring

12, 9 fixed mounting of shutting mount pad is in 5 one sides in flue hole, shutting shaping pole 10 rotates and installs on shutting mount pad 9, first shutting spring 12 is connected with shutting mount pad 9 and shutting shaping pole 10 respectively, first fuse link 11 respectively with the tip fixed connection of valve seat 8 and shutting shaping pole 10, when the temperature is higher, first fuse link 11 fuses, the effort of first shutting spring 12, trigger first shutting shaping pole 10 and rotate, make first shutting shaping pole 10 with valve 6 locking, with high temperature or flame locking in one side of valve 6, improve the security performance of this check valve, preferably, first shutting spring 12 cover is established on shutting shaping pole 10.

The tip of shutting mount pad 9 is equipped with installation step 13, it is equipped with shutting pole mounting hole 14 to dig on the installation step 13, shutting shaping pole 10 rotates to be installed in shutting pole mounting hole 14, it is corresponding, be connected with mount pad 15 on the shutting mount pad 9, it is equipped with mount pad hole 16 to dig on the mount pad 15, shutting shaping pole 10 respectively with shutting pole mounting hole 14, mount pad hole 16 is connected, through shutting pole mounting hole 14, the setting of mount pad hole 16, can improve shutting shaping pole 10 pivoted stability, improve the locking stability of fire prevention shutting structure 4, improve the security performance of this check valve, first shutting spring 12 is installed at mount pad 15, between the installation step 13, it is spacing to carry out first shutting spring 12's relative position, further improve the locking stability of fire prevention shutting structure 4.

Dig on the installation step 13 and be equipped with joint groove 17 for carry out the joint to shutting shaping pole 10, be equipped with joint arch 18 on the lateral wall in joint groove 17, through the setting of the protruding 18 of card, be convenient for become the locking of pole 10 in joint groove 17 with shutting, prevent shutting shaping pole 10 from the roll-off in joint groove 17, improve the locking stability of fire prevention blocking structure 4.

Installation component 3 includes connecting seat 19 and clamping spring 20, and connecting seat 19 fixed mounting is on base 1 terminal surface, and clamping spring 20 rotates and installs on connecting seat 19, through clamping spring 20's setting, is convenient for with installation component 3 joint in the hole of this check valve of installation.

Example two

In this embodiment, the opening mode of the valve assembly 2 in the check valve is a flip-down type.

Valve seat 8 fixed mounting is at the lower extreme of flue hole 5, install rebound spring 23 in pivot 7, setting through rebound spring 23, make the valve be in the closed state under the normality, thereby it is indoor to prevent that the outside air from passing through check valve inflow, rebound spring 23 is connected with valve seat 8, valve 6 respectively, so that valve 6 kick-backs, it is corresponding, fire prevention shutting structure 4 is installed on valve seat 8, through the setting of fire prevention locking structure 4, be convenient for lock valve 6, improve this check valve's security performance.

Fireproof locking structure 4 includes second locking spring 21 and second fuse link 22, and second locking spring 21 cover is established on pivot 7, and is connected with second fuse link 22 and valve seat 8 respectively, and second fuse link 22 fixed connection is on valve seat 8, and when the high temperature, second fuse link 22 takes place the fusing, and the work of second locking spring 21 is started, and second locking spring 21 supports valve 6 on flue hole 5.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention; thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Although the terms corresponding to the reference numerals in the figures are used more herein, the possibility of using other terms is not excluded; these terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.

Claims

1. The utility model provides a check valve, a serial communication port, including base (1), valve component (2), installation component (3) and fire prevention shutting structure (4), dig on base (1) and be equipped with flue hole (5), valve component (2) are installed on base (1), with flue hole (5) looks adaptation, fire prevention shutting structure (4) are connected with valve component (2) triggerable formula, and installation component (3) are installed to the pairwise symmetry on the terminal surface of base (1) to this check valve of installation.

2. A non-return valve according to claim 1, characterised in that the valve member (2) comprises a valve (6), a rotary shaft (7) and a valve seat (8), the valve seat (8) is fixedly mounted on the base (1), and the valve (6) is rotatably connected with the base (1) by the rotary shaft (7).

3. A non-return valve according to claim 2, characterised in that the valve seat (8) is fixedly mounted in the upper end of the flue hole (5), and correspondingly the fireproof closure (4) is fixedly mounted in the upper half of the flue hole (5).

4. A non-return valve according to claim 3, characterised in that the fire-blocking structure (4) comprises a blocking mounting seat (9), a blocking profiled rod (10), a first fuse link (11) and a first blocking spring (12), the blocking mounting seat (9) is fixedly mounted on one side of the flue hole (5), the blocking profiled rod (10) is rotatably mounted on the blocking mounting seat (9), the first blocking spring (12) is respectively connected with the blocking mounting seat (9) and the blocking profiled rod (10), and the first fuse link (11) is respectively fixedly connected with the valve seat (8) and the end of the blocking profiled rod (10).

5. A non-return valve according to claim 4, characterised in that the end of the locking mounting seat (9) is provided with a mounting step (13), the mounting step (13) is hollowed with a locking rod mounting hole (14), and the locking profiled rod (10) is rotatably mounted in the locking rod mounting hole (14).

6. A non-return valve according to claim 5, characterised in that the locking mounting seat (9) is connected to a mounting seat (15), a mounting seat hole (16) is dug in the mounting seat (15), the locking profiled rod (10) is connected to the locking rod mounting hole (14) and the mounting seat hole (16), respectively, and the first locking spring (12) is mounted between the mounting seat (15) and the mounting step (13).

7. A non-return valve according to claim 5, characterised in that the mounting step (13) is hollowed with a catching groove (17), and a catching protrusion (18) is provided on the side wall of the catching groove (17).

8. A non-return valve according to claim 2, characterised in that the valve seat (8) is fixedly mounted at the lower end of the flue hole (5), that the pivot (7) is provided with a resilient spring (23) which is connected to the valve seat (8) and the valve (6) respectively, so as to cause the valve (6) to rebound, and that correspondingly, the fire blocking structure (4) is mounted on the valve seat (8).

9. A non-return valve according to claim 8, characterised in that the fireproof locking structure (4) comprises a second locking spring (21) and a second fuse link (22), the second locking spring (21) is sleeved on the rotating shaft (7) and is respectively connected with the second fuse link (22) and the valve seat (8), and the second fuse link (22) is fixedly connected with the valve seat (8).

10. A non-return valve according to claim 1, characterised in that the mounting assembly (3) comprises a connecting seat (19) and a clamping spring (20), the connecting seat (19) being fixedly mounted on the end face of the base (1), the clamping spring (20) being rotatably mounted on the connecting seat (19).