CN220249035U - Check valve with buffering pressure release mechanism - Google Patents

Abstract

The utility model discloses a check valve with a buffering pressure relief mechanism, which belongs to the field of check valves and comprises a valve shell and a flange, wherein a water inlet pipe is fixedly arranged on the left side of the valve shell, a water outlet pipe is fixedly arranged on the right side of the valve shell, a blocking block is sealed in the valve shell in a rotating mode, a bent pipe is fixedly arranged at the lower end of the water inlet pipe, a switch is fixedly arranged on the left side of the bent pipe, an annular groove is arranged on the flange, an annular ring is fixedly clamped in the annular groove in a sliding mode, a sealing ring is fixedly arranged on one side of the sealing ring, a sealing sleeve is fixedly arranged on one side of the sealing ring, the water inlet pipe is fixedly connected with the left side of the bent pipe, and the water outlet pipe is fixedly connected with the right side of the bent pipe.

Description

Check valve with buffering pressure release mechanism

Technical Field

The utility model relates to the field of check valves, in particular to a check valve with a buffering pressure relief mechanism.

Background

The check valve is a valve with a circular valve clack as an opening and closing part and can stop the medium from flowing backwards by the action of the self weight and the medium pressure. Belongs to automatic valves, which are also called check valves, one-way valves, reflux valves or isolation valves. The movement modes of the valve clack are divided into a lifting type and a swing type.

Most of the existing check valves do not have buffering pressure relief mechanisms, and the check valve shells are easy to break and damage when the stamping force is large, so that the service effect and the service life of the check valves are reduced, and the connecting flange of the existing check valves is not easy to rotate to connect an external connecting pipeline, so that a lot of inconvenience is brought to connecting work.

For example, publication number CN201273387Y discloses a check valve rocker and check valve, and the end of rocker is provided with buffer, and the check valve is including valve body, valve clack, rocker, the rocker is connected with the valve clack, and the front end of rocker is connected with the valve body of check valve through the round pin axle, its characterized in that the inside buffer that avoids rocker and valve body direct collision that is provided with of check valve. The utility model has simple structure, simple processing technique, low cost and convenient maintenance.

According to the scheme disclosed by the above, the check valve is not provided with a buffering pressure relief mechanism, and the connecting flange of the check valve is not provided with a connecting device which is convenient to rotate and connect with an external pipeline.

Disclosure of Invention

The utility model aims to provide a check valve with a buffering pressure relief mechanism, so as to solve the problem that the check valve is not provided with protection and connection.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a check valve with buffering pressure release mechanism, including valve casing and flange, the fixed inlet tube that is provided with in the left side of valve casing, the fixed outlet pipe that is provided with in the right side of valve casing, the inside rotation seal of valve casing has the shutoff piece, the fixed return bend that is provided with in the lower extreme of inlet tube, the fixed switch that is provided with in the left side of return bend, the flange is provided with the ring channel, the inside slip joint of ring channel has the ring channel, the fixed sealing washer that is provided with in ring channel, the fixed seal cover that is provided with in one side of sealing washer, the flange has cup jointed the cutting ferrule through the screw rotation, the left side fixed connection inlet tube through the return bend, the right side fixed connection outlet pipe of return bend, conveniently make rivers pass through the return bend, can not pass through the inside of return bend, thereby reduce the impact force of rivers to the valve casing, protect the valve casing, buffer pressure release's effect has been reached, the cutting ferrule is cup jointed through the flange rotation, conveniently make external water pipe fixed connection flange through rotating the cutting ferrule, the convenience.

Preferably, the left side of inlet tube and the right side of outlet pipe are fixed respectively and are provided with the flange, through the setting of flange, the external pipeline is connected in easy to assemble.

Preferably, the fixed commentaries on classics piece that is provided with of lower extreme of the jam, the lower extreme of valve casing is provided with the groove that rotates, the jam is rotated with the inside of groove that rotates to the commentaries on classics piece, through setting up of jam, bull stick and turning handle, conveniently rotates and adjusts the jam, rotates the function and is prior art, has damping nature function, and the jam can not take place to rotate when not rotating the jam.

Preferably, the right side of return bend fixed connection is in the lower extreme of outlet pipe, the fixed bull stick that is provided with in upper end of sprue, the fixed rotating handle that is provided with in upper end of bull stick.

Preferably, the lower extreme of valve casing is fixed and is provided with the base, the return bend is fixed to pass the base, and through the slip joint of ring channel and annular ring, it is spacing to the sealing washer, increases the spacing steadiness of sealing washer installation, increases the spacing steadiness of installation of seal cover, avoids sealing washer and seal cover to take off the flange.

Compared with the prior art, the utility model has the beneficial effects that:

(1) According to the utility model, the left side of the bent pipe is fixedly connected with the water inlet pipe, the right side of the bent pipe is fixedly connected with the water outlet pipe, so that water flow can conveniently pass through the bent pipe and can not pass through the inside of the valve casing, the impact force of the water flow on the valve casing is reduced, the valve casing is protected, and the buffering and pressure relief effects are achieved.

(2) According to the utility model, the sleeve is sleeved by the flange rotation, so that the external water pipe is conveniently fixed and connected with the flange by rotating the sleeve, and the effect of convenient installation and connection is achieved.

Drawings

FIG. 1 is a cross-sectional view of the overall structure of the present utility model;

FIG. 2 is a partial cross-sectional view of the structure of the present utility model;

fig. 3 is a schematic overall structure of the present utility model.

The reference numerals in the figures illustrate:

1 valve shell, 2 water inlet pipe, 3 water outlet pipe, 4 flange, 5 blocking, 6 rotating block, 7 rotating groove, 8 rotating rod, 9 rotating handle, 10 elbow pipe, 11 switch, 12 base, 13 annular groove, 14 annular ring, 15 sealing ring, 16 sealing sleeve and 17 cutting sleeve.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model; it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments, and that all other embodiments obtained by persons of ordinary skill in the art without making creative efforts based on the embodiments in the present utility model are within the protection scope of the present utility model.

Example 1

Referring to fig. 1-3, a check valve with buffering pressure release mechanism in the diagram includes a valve housing 1 and a flange 4, wherein a water inlet pipe 2 is fixedly arranged on the left side of the valve housing 1, a water outlet pipe 3 is fixedly arranged on the right side of the valve housing 1, a blocking block 5 is sealed in the valve housing 1 in a rotating manner, an elbow 10 is fixedly arranged at the lower end of the water inlet pipe 2, a switch 11 is fixedly arranged on the left side of the elbow 10, an annular groove 13 is arranged on the flange 4, an annular ring 14 is clamped in the annular groove 13 in a sliding manner, a sealing ring 15 is fixedly arranged on the annular ring 14, a sealing sleeve 16 is fixedly arranged on one side of the sealing ring 15, and a cutting sleeve 17 is sleeved on the flange 4 in a rotating manner through threads.

For convenient use, the left side of inlet tube 2 and the right side of outlet pipe 3 are fixed respectively and are provided with flange 4, and the lower extreme of sprue 5 is fixedly provided with the commentaries on classics piece 6, and the lower extreme of valve casing 1 is provided with the change groove 7, and the internal rotation joint of commentaries on classics piece 6 and change groove 7.

In this embodiment, through the left side fixed connection inlet tube 2 of return bend 10, the right side fixed connection outlet pipe 3 of return bend 10, conveniently make rivers pass through return bend 10, can not pass through the inside of valve casing 1 to reduce the impact force of rivers to valve casing 1, protected valve casing 1, reached the effect of buffering pressure release.

Example 2

Referring to fig. 1-3, this embodiment further describes an example 1, in which a check valve with a buffering pressure release mechanism includes a valve housing 1 and a flange 4, a water inlet pipe 2 is fixedly disposed on the left side of the valve housing 1, a water outlet pipe 3 is fixedly disposed on the right side of the valve housing 1, a blocking block 5 is rotationally sealed inside the valve housing 1, an elbow 10 is fixedly disposed at the lower end of the water inlet pipe 2, a switch 11 is fixedly disposed on the left side of the elbow 10, an annular groove 13 is disposed on the flange 4, an annular ring 14 is slidably clamped inside the annular groove 13, a sealing ring 15 is fixedly disposed on the annular ring 14, a sealing sleeve 16 is fixedly disposed on one side of the sealing ring 15, and a clamping sleeve 17 is sleeved on the flange 4 through threaded rotation.

In order to facilitate buffering and pressure relief, the right side of the bent pipe 10 is fixedly connected to the lower end of the water outlet pipe 3, the upper end of the blocking block 5 is fixedly provided with a rotating rod 8, the upper end of the rotating rod 8 is fixedly provided with a rotating handle 9, the lower end of the valve casing 1 is fixedly provided with a base 12, and the bent pipe 10 fixedly penetrates through the base 12.

In this embodiment, cup joint cutting ferrule 17 through flange 4 rotation, conveniently make external water pipe fixed connection flange 4 through rotating cutting ferrule 17, reached the effect of easy to assemble connection.

Through slip joint annular ring 14 for annular groove 13 and annular ring 14 slip joint can install spacing sealing washer 15 and seal cover 16, thereby avoid sealing washer 15 and seal cover 16 to take off the inside of flange 4, can open return bend 10 through opening switch 11 among the prior art, then just can make the rivers disperse the inside of return bend 10, thereby reduced the inside impact force that receives of valve casing 1, protect valve casing 1, can make external water pipe fixed connection flange 4 through rotating cutting ferrule 17, can rotate bull stick 8 through rotating swivel handle 9, then rotate the sprue block 5, then just can make rivers pass through the inside of valve casing 1.

The above description is only of the preferred embodiments of the present utility model; the scope of the utility model is not limited in this respect. Any person skilled in the art, within the technical scope of the present disclosure, may apply to the present utility model, and the technical solution and the improvement thereof are all covered by the protection scope of the present utility model.

Claims (5)

1. The utility model provides a check valve with buffering pressure release mechanism, includes valve casing (1) and flange (4), its characterized in that: the novel water heater is characterized in that a water inlet pipe (2) is fixedly arranged on the left side of the valve casing (1), a water outlet pipe (3) is fixedly arranged on the right side of the valve casing (1), a blocking block (5) is arranged on the inner rotary seal of the valve casing (1), a bent pipe (10) is fixedly arranged at the lower end of the water inlet pipe (2), a switch (11) is fixedly arranged on the left side of the bent pipe (10), an annular groove (13) is formed in the flange (4), an annular ring (14) is fixedly connected to the inner side of the annular groove (13) in a sliding clamping mode, a sealing sleeve (16) is fixedly arranged on one side of the sealing ring (15), and a clamping sleeve (17) is sleeved on the flange (4) through threaded rotation.

2. A check valve with a cushioning pressure relief mechanism as set forth in claim 1, wherein: the left side of inlet tube (2) and the right side of outlet pipe (3) are fixed respectively and are provided with flange (4).

3. A check valve with a cushioning pressure relief mechanism as set forth in claim 1, wherein: the lower extreme of the closure block (5) is fixedly provided with a rotating block (6), the lower extreme of the valve casing (1) is provided with a rotating groove (7), and the rotating block (6) is rotationally clamped with the inside of the rotating groove (7).

4. A check valve with a cushioning pressure relief mechanism as set forth in claim 1, wherein: the right side of return bend (10) is fixedly connected to the lower extreme of outlet pipe (3), the upper end of sprue (5) is fixedly provided with bull stick (8), the upper end of bull stick (8) is fixedly provided with stem (9).

5. A check valve with a cushioning pressure relief mechanism as set forth in claim 1, wherein: the lower end of the valve casing (1) is fixedly provided with a base (12), and the bent pipe (10) fixedly penetrates through the base (12).