CN219299984U

CN219299984U - Valve with good sealing performance

Info

Publication number: CN219299984U
Application number: CN202320265841.XU
Authority: CN
Inventors: 方卫
Original assignee: Shanghai Yijue Fluid Technology Co ltd
Current assignee: Shanghai Yijue Fluid Technology Co ltd
Priority date: 2023-02-21
Filing date: 2023-02-21
Publication date: 2023-07-04
Anticipated expiration: 2033-02-21

Abstract

The utility model discloses a valve with good sealing performance, which has the technical scheme that: the valve comprises a shell, wherein a sealing ball is arranged in the shell, a valve rod is fixedly arranged at the top end of the sealing ball, a valve cover is arranged on the top surface of the shell, and a valve bottom is arranged on the bottom surface of the shell; seal assembly, seal assembly sets up the inside of casing for guarantee the leakproofness of valve, through setting up seal assembly, the spring body can be when rotating the ball valve, the ball valve extrudees first sealing ring, drive first sealing ring indent inwards, make first sealing ring can not hinder the sealing ball to rotate when rotating, the sealing ball stops rotating the ejecting first sealing ring of back spring body, make the good leakproofness that maintains the valve, when guaranteeing the inside leakproofness of valve, reduce ball valve rotation resistance, improve the sense of use, through setting up the bearing, the bearing drives the sealing ball and rotates, reduce the rotation resistance of sealing ball, the outlet can discharge because the water of the deposit of sealing performance poor time.

Description

Valve with good sealing performance

Technical Field

The utility model relates to the technical field of valves, in particular to a valve with good sealing performance.

Background

The valve is a pipeline accessory for opening and closing a pipeline, controlling the flow direction, adjusting and controlling parameters (temperature, pressure and flow rate) of a conveying medium. Depending on their function, they can be classified into shutoff valves, check valves, regulating valves, etc.

According to publication No.: the Chinese patent of CN208670133U, a valve with good sealing performance, comprising a valve body, a sealing ball movably sleeved in the valve body, a rotating rod clamped in the sealing ball and a rotating wheel connected to the upper end of the rotating rod, wherein the valve body comprises an outer shell and a connecting pipe integrally formed with the outer shell, a rubber sealing gasket is clamped between the outer shell and the sealing ball, a cavity is inlaid in the inner wall of the rubber sealing gasket, and a damping plate is integrally formed in the cavity; adopt the rubber seal who two semicircular hollow balls are constituteed to fill up for seal ball installs when inside the valve body, seal through the internal surface of rubber seal pad with the shell body, avoid the produced friction of seal ball and shell body contact, increase the leakproofness that the valve body used simultaneously, the inside cavity of rubber seal pad and shock attenuation board simultaneously, through cavity deformation, make wave shock attenuation board compress, increase the elastic strength that rubber seal pad takes place deformation.

However, there are still some disadvantages to a valve with good sealing performance, such as: including valve body, activity cup joint at the inside sealing ball of valve body, joint at the inside bull stick of sealing ball and the runner of switching in bull stick upper end, above-mentioned scheme has following shortcoming: the semicircular hollow ball can only seal the gap between the outer shell and the sealing ball, but can cause large resistance when the ball valve rotates, and inconvenience is caused to use.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides the valve with good sealing performance, and solves the problems that the semicircular hollow ball can only seal the gap between the outer shell and the sealing ball, but the resistance of the ball valve is large when the ball valve rotates, and the use is inconvenient.

The technical aim of the utility model is realized by the following technical scheme:

a valve with good sealing performance, comprising: the valve comprises a shell, wherein a sealing ball is arranged in the shell, a valve rod is fixedly arranged at the top end of the sealing ball, a valve cover is arranged on the top surface of the shell, and a valve bottom is arranged on the bottom surface of the shell; and the sealing assembly is arranged in the shell and used for ensuring the tightness of the valve.

Through adopting above-mentioned technical scheme, through setting up seal assembly, when guaranteeing the inside leakproofness of valve, reduce ball valve rotation resistance, improve the feel of using.

Preferably, the sealing assembly comprises: the two first sealing rings are fixedly installed in the shell respectively, an installation groove is formed in one side of each first sealing ring, a spring body is fixedly installed on one side of the inside of each installation groove, one end of each spring body is fixedly installed in the shell, a second sealing ring is fixedly installed in the shell, and sealing glue is adhered to the inside of each second sealing ring.

Through adopting above-mentioned technical scheme, through setting up the spring body, the spring body can be when rotating the ball valve, and the ball valve extrudees first sealing ring, drives first sealing ring indent inwards for first sealing ring can not hinder the sealing ball to rotate when rotating, and the sealing ball stops rotating the ejecting first sealing ring of back spring body, makes the good leakproofness of maintaining the valve.

Preferably, the inside fixed mounting of casing has two bearings, two the inner ring of bearing respectively with the top and the bottom fixed mounting of sealing ball, the spread groove has been seted up to the outer circular wall of bearing, the inside fixed mounting of spread groove has the locating pin, the one end of locating pin with the inside fixed mounting of casing.

Through adopting above-mentioned technical scheme, through setting up the bearing, the bearing drives the sealing ball and rotates, reduces the rotation resistance of sealing ball.

Preferably, a water outlet is formed in the bottom surface of the valve bottom, and a drain plug is in interference fit with the water outlet.

By adopting the technical scheme, the water body deposited when the sealing performance is poor can be discharged through the water outlet.

Preferably, the top of valve gap is through bolted connection there being the valve cap, the bottom fixed cover of valve cap is equipped with the sealing washer.

Through adopting above-mentioned technical scheme, through setting up the sealing washer, the sealing washer can prevent that gas from taking gas to get into in the valve when rotating the ball valve for keep the internal air pressure of valve stable.

Preferably, an antistatic spring is fixedly arranged on the inner bottom surface of the valve rod, and the other end of the antistatic spring is fixedly arranged on the outer circular wall surface of the sealing ball.

Through adopting above-mentioned technical scheme, through setting up antistatic spring, antistatic spring can avoid causing the damage of device because of static when operating.

In summary, the utility model has the following advantages:

through setting up seal assembly, the spring body can be when rotating the ball valve, and the ball valve extrudees first sealing ring, drives first sealing ring indent for first sealing ring can not hinder the sealing ball rotation when rotating, and the sealing ball stops rotating the ejecting first sealing ring of back spring body, makes to maintain the good leakproofness of valve, when guaranteeing the inside leakproofness of valve, reduces ball valve rotation resistance, improves the sense of use.

Through setting up the bearing, the bearing drives the sealing ball and rotates, reduces the rotation resistance of sealing ball, through setting up the outlet, and the water that the outlet was deposited because sealing performance is not good can be discharged, through setting up the sealing washer, and the sealing washer can prevent that gas from taking gas to get into in the valve when rotating the ball valve for keep the internal air pressure of valve stable.

Drawings

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

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

FIG. 3 is a cross-sectional view of a dowel structure of the present utility model;

FIG. 4 is a cross-sectional view of the bonnet structure of the present utility model.

Reference numerals: 1. a housing; 2. a sealing ball; 3. a valve stem; 4. a valve cover; 5. a valve bottom; 6. a first seal ring; 7. a mounting groove; 8. a spring body; 9. a second seal ring; 10. sealing glue; 11. a bearing; 12. a connecting groove; 13. a positioning pin; 14. a water outlet; 15. a drain plug; 16. a valve cap; 17. a seal ring; 18. an antistatic spring.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1 and 2, a valve that sealing performance is good, which comprises a housin 1, the inside of casing 1 is provided with sealing ball 2, sealing ball 2's top fixed mounting has valve rod 3, casing 1's top surface is provided with valve gap 4, casing 1's bottom surface is provided with valve bottom 5, casing 1's inside is provided with seal assembly for guarantee the leakproofness of valve, through setting up seal assembly, reduce ball valve rotation resistance when guaranteeing the leakproofness of valve inside, improve the sense of use, seal assembly includes two first sealing rings 6, first sealing ring 6 is for having the structure not doing here in the area of excrescence, two first sealing rings 6 are fixed mounting respectively in casing 1's inside, mounting groove 7 has been seted up to one side of first sealing ring 6, mounting groove 7's inside one side fixed mounting has spring body 8, spring body 8 is for having the structure and do here and do not do excrescence, the one end of spring body 8 and the inside fixed mounting of casing 1, through setting up seal assembly, seal assembly has second sealing ring 9 is for having the structure and here not do the excrescence, seal assembly's inside has 10 to seal assembly, seal assembly has seal ring 10 to hinder seal ring 6 to have here, seal ring 2 to have seal ring 2 to seal ring rotation resistance when seal body is good, seal body is kept seal ring 6 has the seal ball 6 to have a seal ball 2 to be in the area of seal ball, seal ring rotation 6 is rotated when seal 6 has been set up, seal ring 6 has a seal ring 6 and has a seal ring 2 to have a seal ring.

Referring to fig. 1 and 3, two bearings 11 are fixedly installed inside the housing 1, the bearings 11 are of an existing structure, not described in detail herein, inner rings of the two bearings 11 are fixedly installed at the top end and the bottom end of the sealing ball 2 respectively, a connecting groove 12 is formed in the outer circumferential wall surface of the bearing 11, a positioning pin 13 is fixedly installed inside the connecting groove 12, one end of the positioning pin 13 is fixedly installed inside the housing 1, the bearing 11 drives the sealing ball 2 to rotate through the arrangement of the bearing 11, the rotation resistance of the sealing ball 2 is reduced, a water outlet 14 is formed in the bottom surface of the valve bottom 5, a drain plug 15 is in interference fit inside the water outlet 14, and water bodies deposited when the sealing performance is poor can be drained through the arrangement of the water outlet 14.

Referring to fig. 1 and 4, a bonnet 16 is connected to the upper side of a valve cap 4 through bolts, a sealing ring 17 is sleeved at the bottom end of the bonnet 16, the sealing ring 17 is of an existing structure, details are omitted, the sealing ring 17 can prevent gas from entering the valve when the ball valve is rotated through the arrangement of the sealing ring 17, the sealing ring 17 is used for maintaining stable air pressure in the valve, an antistatic spring 18 is fixedly arranged at the inner bottom surface of the valve rod 3, the antistatic spring 18 is of an existing structure, details are omitted, the other end of the antistatic spring 18 is fixedly arranged at the outer circumferential wall surface of the sealing ball 2, and the antistatic spring 18 can avoid damage to a device due to static electricity during operation.

Working principle: referring to fig. 1-4, when the ball valve is rotated, the spring body 8 can press the first sealing ring 6 to drive the first sealing ring 6 to retract inwards when the ball valve is in use, so that the first sealing ring 6 can not obstruct the rotation of the sealing ball 2 when the ball valve rotates, the spring body 8 ejects the first sealing ring 6 after the sealing ball 2 stops rotating, so that the good tightness of the valve is maintained, the bearing 11 drives the sealing ball 2 to rotate, the rotation resistance of the sealing ball 2 is reduced, the water deposited when the sealing performance is poor can be discharged from the water outlet 14, the sealing ring 17 can prevent gas from entering the valve when the ball valve is rotated, the gas pressure in the valve is kept stable, and the anti-static spring 18 can avoid damage to the device caused by static electricity when in operation.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A valve with good sealing performance, comprising:

the valve comprises a shell (1), wherein a sealing ball (2) is arranged in the shell (1), a valve rod (3) is fixedly arranged at the top end of the sealing ball (2), a valve cover (4) is arranged on the top surface of the shell (1), and a valve bottom (5) is arranged on the bottom surface of the shell (1);

seal assembly, seal assembly sets up the inside of casing (1) for guarantee the leakproofness of valve, seal assembly includes:

the two first sealing rings (6), two first sealing rings (6) are respectively fixed mounting is in the inside of casing (1), mounting groove (7) have been seted up to one side of first sealing ring (6), inside one side fixed mounting of mounting groove (7) has spring body (8), the one end of spring body (8) with the inside fixed mounting of casing (1), the inside fixed mounting of casing (1) has second sealing ring (9), and the inside adhesion of second sealing ring (9) has sealant (10).

2. The valve with good sealing performance according to claim 1, wherein two bearings (11) are fixedly installed in the casing (1), inner rings of the two bearings (11) are fixedly installed at the top end and the bottom end of the sealing ball (2) respectively, a connecting groove (12) is formed in the outer circular wall surface of the bearing (11), a positioning pin (13) is fixedly installed in the connecting groove (12), and one end of the positioning pin (13) is fixedly installed in the casing (1).

3. The valve with good sealing performance according to claim 1, wherein a drain outlet (14) is formed in the bottom surface of the valve bottom (5), and a drain plug (15) is in interference fit with the inside of the drain outlet (14).

4. The valve with good sealing performance according to claim 1, wherein a valve cap (16) is connected above the valve cap (4) through bolts, and a sealing ring (17) is sleeved on the bottom end fixing of the valve cap (16).

5. The valve with good sealing performance according to claim 1, wherein an antistatic spring (18) is fixedly arranged on the inner bottom surface of the valve rod (3), and the other end of the antistatic spring (18) is fixedly arranged on the outer circular wall surface of the sealing ball (2).