CN210770451U

CN210770451U - Check valve

Info

Publication number: CN210770451U
Application number: CN201921299784.7U
Authority: CN
Inventors: 毛六雄; 毛智力
Original assignee: Yunnan Yunlu Ventilation Equipment Co ltd
Current assignee: Yunnan Yunlu Ventilation Equipment Co ltd
Priority date: 2019-08-12
Filing date: 2019-08-12
Publication date: 2020-06-16
Anticipated expiration: 2029-08-12

Abstract

The utility model provides a check valve. The check valve includes a valve body; the mounting groove is formed in the inner wall of the top of the valve body; the sliding rod is fixedly arranged in the mounting groove; the sliding block is slidably mounted on the sliding rod, the sliding block is slidably connected with the inner wall of the mounting groove, and the bottom of the sliding block extends to the inner wall of the mounting groove to be slidably connected; the spring is sleeved on the sliding rod in a sliding mode, one end of the spring is fixedly connected with the sliding block, and the other end of the spring is fixedly connected with the inner wall of the mounting groove; the iron ring is fixedly arranged on the sliding block, and the inner wall of the iron ring is connected with the sliding rod in a sliding manner; and the fixing groove is arranged on the inner wall of one side of the mounting groove, which is far away from the spring. The utility model provides a check valve has convenient to use, sensitivity is high, when opening required pressure little, simultaneously, the timely advantage of non return.

Description

Check valve

Technical Field

The utility model relates to a ventilation equipment technical field especially relates to a check valve.

Background

Ventilation equipment is used for places such as hotel, school, hospital, underground construction, need install the ventilation pipe when ventilation equipment ventilates, simultaneously, need prevent the air current backward flow when the ventilation pipe installation, among the prior art, prevents the backward flow through the check valve.

However, the conventional check valve has low sensitivity, requires a large pressure when opening, and is not timely stopped.

Therefore, there is a need to provide a new check valve to solve the above technical problems.

SUMMERY OF THE UTILITY MODEL

The technical problem solved by the utility model is to provide a check valve that convenient to use, sensitivity are high, when opening required pressure is little, simultaneously, the non return is timely.

In order to solve the technical problem, the utility model provides a check valve includes: a valve body; the mounting groove is formed in the inner wall of the top of the valve body; the sliding rod is fixedly arranged in the mounting groove; the sliding block is slidably mounted on the sliding rod, the sliding block is slidably connected with the inner wall of the mounting groove, and the bottom of the sliding block extends to the inner wall of the mounting groove to be slidably connected; the spring is sleeved on the sliding rod in a sliding mode, one end of the spring is fixedly connected with the sliding block, and the other end of the spring is fixedly connected with the inner wall of the mounting groove; the iron ring is fixedly arranged on the sliding block, and the inner wall of the iron ring is connected with the sliding rod in a sliding manner; the fixing groove is formed on the inner wall of one side, far away from the spring, of the mounting groove; the electromagnet is fixedly arranged in the fixed groove and is fixedly connected with the sliding rod; the hinge rod is rotatably arranged on the sliding block; the valve plate is rotatably arranged on the inner wall of the top of the valve body and is rotatably connected with the hinge rod; the sealing ring is fixedly arranged in the valve body and is matched with the valve plate; and the pressure sensor is fixedly arranged on one side of the valve plate, which is far away from the hinge rod.

Preferably, one side of the valve plate is fixedly provided with a sealing gasket, and the sealing gasket is in sealing contact with the sealing ring.

Preferably, a limiting groove is formed in the inner wall of the top of the mounting groove, a limiting block is fixedly mounted at the top of the sliding block, and the limiting block is connected with the inner wall of the limiting groove in a sliding mode.

Preferably, the sliding block is provided with a sliding hole, and the inner wall of the sliding hole is connected with the sliding rod in a sliding manner.

Preferably, fixed mounting has first articulated piece on the top inner wall of valve body, first articulated piece is connected with the valve plate rotation.

Preferably, the valve plate is fixedly provided with a second hinge block, and the second hinge block is rotatably connected with a hinge rod.

Preferably, the bottom of the sliding block is provided with a hinge groove, and the inner wall of the hinge groove is rotatably connected with the hinge rod.

Compared with the prior art, the utility model provides a check valve has following beneficial effect:

the utility model provides a check valve, the mounting groove is arranged on the inner wall of the top of the valve body, the sliding rod is fixedly arranged in the mounting groove, the slide block is slidably arranged on the sliding rod, the slide block is slidably connected with the inner wall of the mounting groove, the bottom of the slide block extends to the inner wall of the mounting groove and is slidably connected, the spring is slidably sleeved on the sliding rod, one end of the spring is fixedly connected with the slide block, the other end of the spring is fixedly connected with the inner wall of the mounting groove, the check effect is good, the check is in time, the iron ring is fixedly arranged on the slide block, the inner wall of the iron ring is slidably connected with the sliding rod, the fixing groove is arranged on the inner wall of the mounting groove far away from the spring, the electromagnet is fixedly arranged in the fixing groove, the electromagnet is fixedly connected with the sliding rod, the hinge rod is rotatably arranged on, the valve plate rotates to be installed on the top inner wall of valve body, and the valve plate with the hinge bar rotates to be connected, sealing washer fixed mounting be in the valve body, and sealing washer and valve plate looks adaptation, the convenient opening, and opening pressure is little, pressure sensor fixed mounting be in one side that the hinge bar was kept away from to the valve plate, can in time open, improve sensitivity.

Drawings

Fig. 1 is a schematic structural diagram of a check valve according to a preferred embodiment of the present invention;

fig. 2 is a schematic structural view of the seal ring shown in fig. 1.

Reference numbers in the figures: 1. the valve comprises a valve body, 2, a mounting groove, 3, a sliding rod, 4, a sliding block, 5, a spring, 6, an iron ring, 7, a fixing groove, 8, an electromagnet, 9, a hinge rod, 10, a valve plate, 11, a sealing ring, 12, a pressure sensor, 13 and a sealing gasket.

Detailed Description

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

Please refer to fig. 1 and fig. 2, wherein fig. 1 is a schematic structural diagram of a check valve according to a preferred embodiment of the present invention; fig. 2 is a schematic structural view of the seal ring shown in fig. 1. The check valve includes: a valve body 1; the mounting groove 2 is formed in the inner wall of the top of the valve body 1; the sliding rod 3 is fixedly arranged in the mounting groove 2; the sliding block 4 is slidably mounted on the sliding rod 3, the sliding block 4 is slidably connected with the inner wall of the mounting groove 2, and the bottom of the sliding block 4 extends to the inner wall of the mounting groove 2 for sliding connection; the spring 5 is sleeved on the sliding rod 3 in a sliding mode, one end of the spring 5 is fixedly connected with the sliding block 4, and the other end of the spring 5 is fixedly connected with the inner wall of the mounting groove 2; the iron ring 6 is fixedly arranged on the sliding block 4, and the inner wall of the iron ring 6 is connected with the sliding rod 3 in a sliding manner; a fixing groove 7, wherein the fixing groove 7 is formed on the inner wall of the mounting groove 2 far away from the spring 5; the electromagnet 8 is fixedly arranged in the fixing groove 7, and the electromagnet 8 is fixedly connected with the sliding rod 3; the hinge rod 9 is rotatably arranged on the sliding block 4; the valve plate 10 is rotatably installed on the inner wall of the top of the valve body 1, and the valve plate 10 is rotatably connected with the hinge rod 9; the sealing ring 11 is fixedly arranged in the valve body 1, and the sealing ring 11 is matched with the valve plate 10; and the pressure sensor 12 is fixedly arranged on one side of the valve plate 10 far away from the hinge rod 9.

One side fixed mounting of valve plate 10 has sealed the pad 13, and sealed pad 13 and sealing washer 11 sealing contact.

The top inner wall of mounting groove 2 has been seted up the spacing groove, the top fixed mounting of slider 4 has the stopper, the stopper is with the inner wall sliding connection of spacing groove.

The sliding block 4 is provided with a sliding hole, and the inner wall of the sliding hole is connected with the sliding rod 3 in a sliding manner.

Fixed mounting has first articulated piece on the top inner wall of valve body 1, first articulated piece rotates with valve plate 10 to be connected.

The valve plate 10 is fixedly provided with a second hinge block, and the second hinge block is rotatably connected with the hinge rod 9.

The bottom of the sliding block 4 is provided with a hinge groove, and the inner wall of the hinge groove is rotatably connected with the hinge rod 9.

The utility model provides a check valve's theory of operation as follows:

when the gas valve is used, when gas flows in the forward direction, the pressure sensor 12 senses pressure, at the moment, the electromagnet 8 is started, the electromagnet 8 adsorbs the iron ring 6, the iron ring 6 drives the sliding block 4 to slide on the sliding rod 3, the sliding block 4 drives the hinge rod 9 to rotate, the hinge rod 9 pulls the valve plate 10 to rotate, the valve plate 10 is opened, the gas can flow, the opening sensitivity of the gas valve is improved, the opening pressure is reduced, and at the moment, the spring 6 is in a stretching state;

when not carrying out the gas flow, pressure sensor 12 can not feel pressure, and at this moment, electro-magnet 8 closes, and under the pulling force effect of spring 5, drive slider 4 reverse slip on slide bar 3, slider 4 drive hinge rod 9 reverse rotation, and hinge rod 9 promotes valve plate 10 reverse rotation, makes sealed pad 13 and sealing washer 11 contact, and at this moment, for the closed condition, and close sensitivity height, the non return that can in time.

the utility model provides a check valve, the mounting groove 2 is arranged on the inner wall of the top of the valve body 1, the sliding rod 3 is fixedly arranged in the mounting groove 2, the slider 4 is slidably arranged on the sliding rod 3, the slider 4 is slidably connected with the inner wall of the mounting groove 2, and the bottom of the slider 4 extends to the inner wall of the mounting groove 2 for sliding connection, the spring 5 is slidably sleeved on the sliding rod 3, one end of the spring 5 is fixedly connected with the slider 4, the other end of the spring 5 is fixedly connected with the inner wall of the mounting groove 2, the check effect is good, the check is timely, the iron ring 6 is fixedly arranged on the slider 4, the inner wall of the iron ring 6 is slidably connected with the sliding rod 3, the fixing groove 7 is arranged on the inner wall of the mounting groove 2 at the side far away from the spring 5, the electromagnet 8 is fixedly arranged in the fixing groove 7, just the electro-magnet 8 with 3 fixed connection of slide bar, the hinge bar 9 rotates to be installed on the slider 4, valve plate 10 rotates to be installed on the top inner wall of valve body 1, and valve plate 10 with hinge bar 9 rotates to be connected, sealing washer 11 fixed mounting be in the valve body 1, and sealing washer 11 and valve plate 10 looks adaptation, conveniently open, and open pressure for a short time, pressure sensor 12 fixed mounting be in one side that hinge bar 9 was kept away from to valve plate 10 can in time be opened, improvement sensitivity.

The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.

Claims

1. A check valve, comprising:

a valve body;

the mounting groove is formed in the inner wall of the top of the valve body;

the sliding rod is fixedly arranged in the mounting groove;

the sliding block is slidably mounted on the sliding rod, the sliding block is slidably connected with the inner wall of the mounting groove, and the bottom of the sliding block extends to the inner wall of the mounting groove to be slidably connected;

the spring is sleeved on the sliding rod in a sliding mode, one end of the spring is fixedly connected with the sliding block, and the other end of the spring is fixedly connected with the inner wall of the mounting groove;

the iron ring is fixedly arranged on the sliding block, and the inner wall of the iron ring is connected with the sliding rod in a sliding manner;

the fixing groove is formed on the inner wall of one side, far away from the spring, of the mounting groove;

the electromagnet is fixedly arranged in the fixed groove and is fixedly connected with the sliding rod;

the hinge rod is rotatably arranged on the sliding block;

the valve plate is rotatably arranged on the inner wall of the top of the valve body and is rotatably connected with the hinge rod;

the sealing ring is fixedly arranged in the valve body and is matched with the valve plate;

and the pressure sensor is fixedly arranged on one side of the valve plate, which is far away from the hinge rod.

2. The check valve of claim 1, wherein a gasket is fixedly mounted to one side of the valve plate and is in sealing contact with the gasket.

3. The check valve of claim 1, wherein a limiting groove is formed in the inner wall of the top of the mounting groove, a limiting block is fixedly mounted at the top of the sliding block, and the limiting block is slidably connected with the inner wall of the limiting groove.

4. The check valve of claim 1, wherein the slide block has a slide hole, and an inner wall of the slide hole is slidably connected to the slide rod.

5. The check valve of claim 1, wherein a first hinge block is fixedly mounted on the top inner wall of the valve body, and the first hinge block is rotatably connected with the valve plate.

6. The check valve of claim 1, wherein a second hinge block is fixedly mounted on the valve plate and is rotatably connected to a hinge rod.

7. The check valve of claim 1, wherein the bottom of the slider is formed with a hinge groove, and an inner wall of the hinge groove is rotatably connected to the hinge rod.