CN212928867U

CN212928867U - Balance check valve

Info

Publication number: CN212928867U
Application number: CN202021617460.6U
Authority: CN
Inventors: 宋健义; 刘旭东
Original assignee: Yantai Hongjian Measurement And Control Equipment Co ltd
Current assignee: Yantai Hongjian Measurement And Control Equipment Co ltd
Priority date: 2020-08-06
Filing date: 2020-08-06
Publication date: 2021-04-09
Anticipated expiration: 2030-08-06

Abstract

The utility model discloses a balanced check valve, including valve body, spring and bolt, the export has been seted up in the lower extreme left side of valve body, and the lower extreme right side of valve body is provided with the entry, the balance pipe connector is installed to the upper end of valve body, and the outside of balance pipe connector installs the valve gap, the lower extreme of balance pipe connector is provided with the spring, and the outside of spring installs the lasso, the downside of spring is connected with the bolt, and the outside lower extreme of bolt installs the bullet pad, be connected with flat the pad on the bullet pad, and the upside of flat pad is provided with the sealed pad of tetrafluoro, the case is installed to the side of bolt. The utility model discloses simple structure through the installation spring, can make the bolt pass through and constitute extending structure between spring and the valve body, and then produces elasticity to the liquid of flowing through, carries out the pressure boost.

Description

Balance check valve

Technical Field

The utility model relates to a check valve technical field specifically is a balanced check valve.

Background

The check valve (also called check valve), also called check valve, reverse flow valve and back pressure valve, refers to a valve that automatically opens and closes the valve flap by the flow of fluid itself to prevent the media from flowing backwards. The check valve is an automatic valve and mainly used for preventing medium from flowing backwards, preventing the pump and a driving motor from reversing and discharging container medium. Check valves may also be used in lines that provide make-up for auxiliary systems where the pressure may rise above the system pressure, requiring the use of a balanced check valve in the high precision metering control of the liquid.

The existing balance check valve can influence the balance check valve when liquid in the material storage tank changes, so that the closing speed of the balance check valve is inconsistent, the influence of liquid change is easily received, the high-precision quantitative metering control of the liquid is not convenient to realize, and the use is influenced simultaneously.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a balanced check valve 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 utility model provides a balanced check valve, includes valve body, spring and bolt, the export has been seted up in the lower extreme left side of valve body, and the lower extreme right side of valve body is provided with the entry, balanced pipe connector is installed to the upper end of valve body, and the outside of balanced pipe connector installs the valve gap, the lower extreme of balanced pipe connector is provided with the spring, and installs the lasso in the outside of spring, the downside of spring is connected with the bolt, and the outside lower extreme of bolt installs the bullet pad, be connected with flat the pad on the bullet pad, and the upside of flat pad is provided with the sealed pad of tetrafluoro, the case is installed to the side of bolt.

Preferably, the valve body is connected with the liquid storage tank through a balance pipe connecting port, and the lower end of the balance pipe connecting port is fixedly connected with the spring.

Preferably, the valve cover and the lasso are in clamping connection, and the outer diameter of the valve cover is larger than that of the lasso.

Preferably, the spring and the bolt are fixedly connected, and the bolt forms a telescopic structure with the valve body through the spring.

Preferably, the bolt is in threaded connection with the valve core, and the lower end of the valve core is fixedly connected with the tetrafluoro gasket.

Preferably, the elastic pad and the flat pad are fixedly connected through a bolt and a PTFE sealing pad, and detachable structures are arranged among the elastic pad, the flat pad, the bolt and the valve core.

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

1. the utility model has simple structure, and the bolt can form a telescopic structure between the spring and the valve body by installing the spring, thereby generating elasticity for the flowing liquid and pressurizing; the bolt is in threaded connection with the valve core, so that the elastic pad and the flat pad can be fixed through the mounting bolt, and the device is convenient to use;

2. the utility model can prevent the PTFE sealing gasket from sliding on the valve core by arranging the valve core and the PTFE sealing gasket in fixed connection, thereby increasing the quantitative precision of the check valve; through all setting up to detachable construction between will playing pad, flat pad and bolt and the case, can use for a long time and wait convenient to detach replacement, and then increase playing pad, flat pad and bolt the utility model discloses a life increases the result of use of device simultaneously.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic diagram of the local enlarged structure of point a of the present invention.

Fig. 3 is a schematic view of the sectional structure of the valve core of the present invention.

In the figure: 1. a valve body; 2. an outlet; 3. an inlet; 4. a valve cover; 5. lasso; 6. a balance pipe connector; 7. a spring; 8. a bolt; 9. a valve core; 10. a tetrafluoro gasket; 11. a spring pad; 12. and (7) flattening the cushion.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

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. 1-3, the present invention provides an embodiment: a balance check valve comprises a valve body 1, a spring 7 and a bolt 8, wherein an outlet 2 is formed in the left side of the lower end of the valve body 1, an inlet 3 is formed in the right side of the lower end of the valve body 1, a balance pipe connecting port 6 is installed at the upper end of the valve body 1, a valve cover 4 is installed on the outer side of the balance pipe connecting port 6, the valve cover 4 is in clamping connection with a lasso 5, the outer diameter of the valve cover 4 is larger than that of the lasso 5, the valve body 1 is connected with a liquid storage tank through the balance pipe connecting port 6, the lower end of the balance pipe connecting port 6 is fixedly connected with the spring 7, the spring 7 is arranged at the lower end of the balance pipe connecting port 6, the lasso 5 is installed on the outer side of the spring 7, a telescopic structure can be formed between the bolt 8 and the valve body 1 through the spring 7 by installing the spring 7, the bolt 8 is in threaded connection with the valve core 9, the elastic pad 11 and the flat pad 12 can be fixed through the mounting bolt 8, the device is convenient to use, the lower end of the valve core 9 is fixedly connected with the PTFE sealing pad 10, the PTFE sealing pad 10 can be prevented from sliding on the valve core 9, the quantitative precision of the check valve is increased, the spring 7 is fixedly connected with the bolt 8, the bolt 8 forms a telescopic structure with the valve body 1 through the spring 7, the elastic pad 11 is mounted at the lower end of the outer side of the bolt 8, the elastic pad 11 is fixedly connected with the flat pad 12 through the bolt 8, and the elastic pad 11, the flat pad 12 and the bolt 8 are in detachable structures with the valve core 9, through will playing and fill up 11, flat 12 and bolt 8 and case 9 between all set up to detachable construction, can fill up 11, flat 12 and bolt 8 and use for a long time and wait convenient to detach replacement at the bullet, and then increase the utility model discloses a life increases the result of use of device simultaneously, is connected with flat 12 of filling up on the bullet pad 11, and the upside that flat 12 of filling up is provided with the sealed pad 10 of tetrafluoro, and case 9 is installed to bolt 8's side.

The working principle is as follows: the utility model discloses when using, it is right to need the utility model discloses carry out simple structure and know, at first the user is connected balance pipe connector 6 with the entrance of pump, be convenient for and liquid storage tank intercommunication, will overcome the elasticity that spring 7 gave when the 3 departments of entry are flowed through to liquid flow, because balance pipe connector 6 of balanced check valve is connected to balance pipe one end, the entry at the pump is connected to balance pipe connector 6's the other end, when the conveying pump is opened, produce the negative pressure in the case 9 cavity of balanced check valve, the pressure of liquid makes case 9 shift up like this, the valve is opened, liquid flows out from export 2, then when the pump stops, case 9 relies on the elasticity of dead weight and spring 7 and the pressure of balance pipe connector 6 department liquid, make the valve close. Therefore, the balance check valve is reliably closed all the time no matter how the liquid level in the storage tank changes, the closing speed is consistent, the influence of the liquid level change is avoided, the high-precision quantitative metering control of liquid is convenient to realize, and the balance check valve which is not influenced by the liquid level change is more convenient for people to use.

The above description is only an example of the present invention, and the common general knowledge of the known specific structures and characteristics of the embodiments is not described herein. 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.

Claims

1. The utility model provides a balanced check valve, includes valve body (1), spring (7) and bolt (8), its characterized in that: export (2) have been seted up on the lower extreme left side of valve body (1), and the lower extreme right side of valve body (1) is provided with entry (3), balance pipe connector (6) are installed to the upper end of valve body (1), and the outside of balance pipe connector (6) installs valve gap (4), the lower extreme of balance pipe connector (6) is provided with spring (7), and installs noose (5) in the outside of spring (7), the downside of spring (7) is connected with bolt (8), and the outside lower extreme of bolt (8) installs bullet pad (11), be connected with flat pad (12) on bullet pad (11), and the upside of flat pad (12) is provided with the sealed pad (10) of tetrafluoro, case (9) are installed to the side of bolt (8).

2. The balanced check valve of claim 1, wherein: the valve body (1) is connected with the liquid storage tank through the balance pipe connecting port (6), and the lower end of the balance pipe connecting port (6) is fixedly connected with the spring (7).

3. The balanced check valve of claim 1, wherein: the valve cover (4) is connected with the lasso (5) in a clamping mode, and the diameter of the outer side of the valve cover (4) is larger than that of the outer side of the lasso (5).

4. The balanced check valve of claim 1, wherein: the spring (7) and the bolt (8) are fixedly connected, and the bolt (8) forms a telescopic structure with the valve body (1) through the spring (7).

5. The balanced check valve of claim 1, wherein: the bolt (8) is in threaded connection with the valve core (9), and the lower end of the valve core (9) is fixedly connected with the tetrafluoro gasket (10).

6. The balanced check valve of claim 1, wherein: the elastic pad (11) and the flat pad (12) are fixedly connected with the PTFE sealing gasket (10) through bolts (8), and detachable structures are arranged among the elastic pad (11), the flat pad (12), the bolts (8) and the valve core (9).