CN210566396U

CN210566396U - Instrument ball valve

Info

Publication number: CN210566396U
Application number: CN201921125503.6U
Authority: CN
Inventors: 李英书
Original assignee: Zhejiang Guanbo Fluid Technology Co Ltd
Current assignee: Zhejiang Guanbo Fluid Technology Co Ltd
Priority date: 2019-07-17
Filing date: 2019-07-17
Publication date: 2020-05-19
Anticipated expiration: 2029-07-17

Abstract

The utility model relates to a ball valve technical field, in particular to instrument ball valve, including valve body, ball valve rod, encapsulation filler, valve rod filler and handle, the valve body be the three-way rectilinear valve body, ball valve rod installs perpendicularly in the valve body, ball valve rod is including the ball-shaped case and the valve body of rod, the one end of the valve body of rod with ball-shaped case connects, the other end with the handle is connected, the valve rod filler cover is in on the valve body of rod, the encapsulation filler is cylindrically, encapsulation filler parcel ball-shaped case, the last case through-hole that is equipped with of ball-shaped case, the case through-hole can align the exit of valve body. The utility model provides an instrument ball valve has adopted columniform encapsulation to pack, can form reliable sealed between valve body and valve rod to can satisfy the requirement of user to sealing performance better.

Description

Instrument ball valve

Technical Field

The utility model relates to a ball valve technical field, in particular to instrument ball valve.

Background

The instrument valve is a pipeline accessory, and is a device for changing the section of a channel and the flowing direction of a medium and controlling the flowing of a conveying medium. The sealing performance of the instrument valve refers to the capability of each sealing part of the instrument valve for preventing medium leakage, and is the most important technical performance index of the instrument valve, the leakage at the joint of a valve body and a valve cover is called internal leakage, namely the leakage is not tightly closed, the capability of the instrument valve for cutting off the medium is influenced, and the internal leakage is not allowed for the cut-off valves. The latter two leaks are called external leaks, i.e. leakage of medium from the inside of the valve to the outside of the valve. The leakage can cause material loss, pollutes the environment, still can cause the accident when serious, to inflammable and explosive, poisonous or have the medium of radiation, the leakage is even impermissible, therefore the instrument valve must have reliable sealing performance, and the sealing performance of the sealed part of current instrument ball valve on the market is often not good enough, therefore can not satisfy customer's demand well. In view of the above-mentioned shortcomings, the present invention provides an improvement.

SUMMERY OF THE UTILITY MODEL

In order to overcome the not enough of background art, the utility model provides an instrument ball valve has adopted columniform encapsulation to pack, can form reliable sealing between valve body and valve rod to can satisfy the requirement of user to sealing performance better.

The utility model adopts the technical proposal that: the utility model provides an instrument ball valve, including valve body, spherical valve rod, encapsulation filler, valve rod filler and handle, the valve body be the vertical formula valve body of tee bend, spherical valve rod installs perpendicularly in the valve body, spherical valve rod is including spherical case and the valve rod body, the one end of the valve rod body with spherical case is connected, the other end with the handle is connected, the valve rod filler cover is in on the valve rod body, the encapsulation filler is cylindrical, encapsulation filler parcel spherical case, be equipped with the case through-hole on the spherical case, the exit of case through-hole ability alignment valve body. In the above scheme, the ball valve rod formula as an organic whole, the handle is connected with the one end of the valve rod body, drives the valve rod body and rotates together when the handle rotates, and the spherical case of the valve rod body other end rotates along with, rotates the exit that back case through-hole can align the valve body, and instrument ball valve just so can play the break-make effect, the encapsulation filler is cylindrical, and encapsulation filler parcel spherical case has formed good sealed between valve body and ball valve rod, can satisfy actual demand better.

In order to enable the packaging filler to form better sealing between the valve body and the spherical valve rod, four circular cylindrical holes are uniformly formed in the side face of the cylindrical packaging filler, valve rod holes are formed in the upper bottom face and the lower bottom face of the packaging filler, ring-type sealing gaskets are arranged on the circular cylindrical holes, every two opposite circular cylindrical holes completely penetrate through the cylindrical holes, a disc is installed in one opposite group of circular cylindrical holes, and a ring is installed in the other group of circular cylindrical holes.

Preferably, the upper end and the lower end of the side surface of the packaging filler are respectively provided with a sealing bulge, and the valve body is provided with a sealing groove matched with the sealing bulge.

In order to enable the handle to drive the spherical valve rod to rotate, a connecting boss is arranged at one end of the valve rod body, and the handle is sleeved on the connecting boss.

In order to open and close fast the instrument ball valve, the last port of valve body is equipped with the first platform that keeps off that is half circumference shape, the lower port of handle is equipped with the second that is quarter circumference shape and keeps off the platform, and first fender platform keeps off platform looks adaptation with the second, the handle second keeps off the platform and can contradict first fender platform when rotating.

In order to enable the spherical valve rod to stably rotate when the spherical valve rod is opened and closed, the valve rod packing comprises a gland packing, disk springs and a packing bolt, the gland packing is abutted to the upper bottom surface of the cylindrical packing, the disk springs are located between the gland packing and the packing bolt, the packing bolt is fixed on the valve body, and the packing bolt is in threaded connection with the valve body.

Preferably, the inlet and the outlet of the valve body are connected with clamping sleeve nuts, and the clamping sleeve nuts are connected with the valve body in a double-clamping sleeve mode.

Preferably, the packing filler is made of polytetrafluoroethylene material, and the cutting sleeve is an ion hardening cutting sleeve.

To sum up, the utility model discloses beneficial effect does:

1. the integrated cylindrical packing can form good sealing between the valve body and the spherical valve rod, and the arrangement of the ring-type sealing gasket further enhances the sealing property;

2. the arrangement of the first blocking platform and the second blocking platform realizes that the handle can be fully opened or closed by rotating 90 degrees, and realizes quick opening and closing

3. The cylindrical packing filler and the valve body form primary sealing, and the sealing bulge on the packing filler and the sealing groove on the valve body form secondary sealing, so that the valve has better sealing performance and can be suitable for occasions with higher requirements on the sealing performance.

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

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

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

FIG. 2 is a schematic view of the packing, disc and ring of the present invention;

FIG. 3 is a schematic structural view of the ball valve rod of the present invention;

fig. 4 is a schematic cross-sectional view of the first and second blocking platforms of the present invention;

fig. 5 is a schematic view of the overall structure of another embodiment of the present invention;

FIG. 6 is an enlarged view taken at A in FIG. 5;

the drawing marks comprise 1-valve body, 2-spherical valve rod, 3-packaging filler, 4-valve rod filler, 5-handle, 6-spherical valve core, 7-valve rod body, 8-valve core through hole, 9-valve body inlet, 10-valve body outlet, 11-circular cylindrical hole, 12-valve rod hole, 13-ring type sealing gasket, 14-disc, 15-ring, 16-connecting boss, 17-first baffle table, 18-second baffle table, 19-gland gasket, 20-disc spring, 21-packing bolt, 22-ferrule nut, 23-sealing protrusion, 24-sealing groove, 25-primary seal and 26-secondary seal.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to fig. 1 to 6 in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

In order to make the purpose, technical solution and advantages of the present invention clearer, the following will combine the drawings in the embodiments of the present invention to perform more detailed description on the technical solution in the embodiments of the present invention.

Example 1

As shown in fig. 1 to 4, the instrument ball valve disclosed in this embodiment includes a valve body 1, a spherical valve rod 2, an encapsulation filler 3, a valve rod filler 4 and a handle 5, the valve body 1 is a three-way vertical valve body 1, the spherical valve rod 2 is vertically installed in the valve body 1, the spherical valve rod 2 includes a spherical valve core 6 and a valve rod body 7, one end of the valve rod body 7 is connected with the spherical valve core 6, the other end of the valve rod body is connected with the handle 5, the valve rod filler 4 is sleeved on the valve rod body 7, the encapsulation filler 3 is cylindrical, the encapsulation filler 3 wraps the spherical valve core 6, a valve core through hole 8 is formed in the spherical valve core 6, and the valve core through hole 8 can be aligned with an inlet and an outlet of the valve body 1. In the above scheme, 2 formula as an organic whole of spherical valve rod, handle 5 is connected with the one end of the valve rod body 7, and drive the valve rod body 7 and rotate together when handle 5 rotates, and the spherical case 6 of the valve rod body 7 other end rotates along with, rotates back case through-hole 8 and can align the exit of valve body 1, and the instrument ball valve just can play the break-make effect like this, encapsulation filler 3 is cylindrical, and encapsulation filler 3 parcel spherical case 6 has formed good sealed between valve body 1 and spherical valve rod 2, can satisfy actual demand better. One end of the valve body 1 is a valve body inlet 9, the other end of the valve body 1 is a valve body outlet 10, and the spherical valve rod 2 and the handle 5 are arranged in the direction perpendicular to the inlet and outlet direction of the valve body 1.

In order to enable the packaging filler 3 to form better sealing between the valve body 1 and the spherical valve rod 2, four circular cylindrical holes 11 are uniformly formed in the side face of the cylindrical packaging filler 3, valve rod holes 12 are formed in the upper bottom face and the lower bottom face of the packaging filler 3, ring-type sealing gaskets 13 are arranged on the circular cylindrical holes 11, every two opposite circular cylindrical holes 11 completely penetrate through the cylindrical holes, a disc 14 is installed in one set of opposite circular cylindrical holes 11, and a ring 15 is installed in the other set of circular cylindrical holes 11. The packing 3 is integrated and cylindrical, so that sealing can be better formed between the valve body 1 and the spherical valve rod 2, the disc 14 is installed in one group of opposite circular cylindrical holes 11, the annular sealing gasket 13 is arranged between the disc 14 and the spherical valve core 6, the ring 15 is installed in the other group of circular cylindrical holes 11, the annular sealing gasket 13 is arranged between the ring 15 and the spherical valve core 6, the sealing performance is enhanced by the arrangement of the annular sealing gasket 13, when the valve core through hole 8 is aligned with the inlet and the outlet of the valve body 1, a liquid medium enters the spherical valve core 6 through the ring 15, the liquid medium can generate pressure on the ring 15, the ring 15 can compress the annular sealing gasket 13, the annular sealing gasket 13 has better sealing effect, and the disc 14 plays a supporting role.

In order to enable the handle 5 to drive the spherical valve rod 2 to rotate, a connecting boss 16 is arranged at one end of the valve rod body 7, and the handle 5 is sleeved on the connecting boss 16. The handle 5 can be clamped on the connecting boss 16 when being sleeved on the connecting boss 16, so that the handle 5 can drive the spherical valve rod 2 to rotate together when rotating, and the instrument ball valve can be opened and closed after the spherical valve rod 2 rotates.

In order to open and close the instrument ball valve fast, the upper port of the valve body 1 is provided with a first baffle table 17 in a semicircular shape, the lower port of the handle 5 is provided with a second baffle table 18 in a quarter-circle shape, the first baffle table 17 is matched with the second baffle table 18, and the second baffle table 18 can abut against the first baffle table 17 when the handle 5 rotates. As shown in fig. 4, the first blocking platform 17 and the second blocking platform 18 are located on the same circumference, so that the first blocking platform 17 can only rotate 90 degrees and can drive the spherical valve rod 2 to rotate 90 degrees, thereby realizing that the handle 5 rotates 90 degrees to complete the full-on or full-off action and realizing the rapid on/off.

In order to enable the spherical valve rod 2 to rotate stably during opening and closing, the valve rod packing 4 comprises a gland packing 19, disc springs 20 and packing bolts 21, the gland packing 19 abuts against the upper bottom surface of the cylindrical packing 3, the disc springs 20 are located between the gland packing 19 and the packing bolts 21, the packing bolts 21 are fixed on the valve body 1, and the packing bolts 21 are in threaded connection with the valve body 1. The gland gasket 19, the disc spring 20 and the packing bolt 21 are sequentially sleeved on the spherical valve rod 2, the gland gasket 19 is abutted to the upper bottom surface of the cylindrical packing 3, when the packing bolt 21 is in threaded connection with the valve body 1, the disc spring 20 can generate elastic deformation, the spherical valve rod 2 and the packing 3 can be compressed, a fixing effect is achieved, and due to the elastic fixation, the spherical valve rod 2 can also better rotate, so that the instrument ball valve is opened and closed. The disc spring 20 is known in the art and will not be described in detail.

The inlet and outlet of the valve body 1 are connected with a clamping sleeve nut 22, and the clamping sleeve nut 22 is connected with the valve body 1 in a double-clamping sleeve mode. The packaging filler 3 is made of polytetrafluoroethylene materials, and the clamping sleeve is an ion hardening clamping sleeve. The double-ferrule connection, the polytetrafluoroethylene material and the ion hardening ferrule all belong to the prior art, and are not specifically described herein.

Example 2

As shown in fig. 1 to 6, the structure of the present embodiment is substantially the same as that of embodiment 1, and the following technical features are added on the basis of embodiment 1: and the upper end and the lower end of the side surface of the packaging filler 3 are respectively provided with a sealing bulge 23, and the valve body 1 is provided with a sealing groove 24 matched with the sealing bulge 23. The sealing bulge 23 surrounds the side of the packaging filler 3 for a circle, the sealing bulge 23 is respectively arranged at the upper end and the lower end of the side of the packaging filler 3, the sealing bulge 23 can be just clamped into the sealing groove 24, the sealing groove 24 can be matched with the sealing bulge 23 to play a sealing role, a positioning role can also be played for the installation of the packaging filler 3, and the packaging filler 3 can be preliminarily fixed. In the scheme, a primary seal 25 is formed between the cylindrical packing 3 and the valve body 1, and a secondary seal 26 is formed between the seal bulge 23 on the packing 3 and the seal groove 24 on the valve body 1, so that the secondary seal 26 is added, the sealing device has better sealing performance, and is suitable for occasions with higher requirements on sealing performance.

The skilled person should understand that: although the present invention has been described in terms of the above embodiments, the inventive concept is not limited to this embodiment, and any modification that utilizes the inventive concept is intended to be within the scope of the present patent application.

Claims

1. An instrument ball valve characterized in that: the ball valve comprises a valve body, a ball valve rod, packaging filler, valve rod filler and a handle, wherein the valve body is a three-way vertical valve body, the ball valve rod is vertically installed in the valve body and comprises a ball valve core and a valve rod body, one end of the valve rod body is connected with the ball valve core, the other end of the valve rod body is connected with the handle, the valve rod filler is sleeved on the valve rod body, the packaging filler is cylindrical, the packaging filler wraps the ball valve core, a valve core through hole is formed in the ball valve core, and the valve core through hole can be aligned with an inlet and an outlet of the valve body.

2. The meter ball valve of claim 1, wherein: the side of cylindrical encapsulation filler evenly is equipped with four circular cylinder holes, and the upper and lower bottom surface of encapsulation filler is equipped with the valve rod hole, is equipped with the sealed pad of ring type on the circular cylinder hole, and two liang of relative circular cylinder holes run through completely, installs the disc in a set of relative circular cylinder hole, installs the ring in another set of circular cylinder hole.

3. The meter ball valve of claim 2, wherein: the upper end and the lower end of the side face of the packaging filler are respectively provided with a sealing bulge, and the valve body is provided with a sealing groove matched with the sealing bulge.

4. A meter ball valve according to claim 2 or 3, wherein: one end of the valve rod body is provided with a connecting boss, and the handle is sleeved on the connecting boss.

5. The meter ball valve of claim 4, wherein: the last port of valve body is equipped with the first platform that keeps off that is semicircle circumference shape, the lower port of handle is equipped with the second that is quarter circumference shape and keeps off the platform, and first fender platform keeps off platform looks adaptation with the second, the handle second keeps off the platform can contradict first fender platform when rotating.

6. The meter ball valve of claim 5, wherein: the valve rod packing comprises a gland packing, disk springs and packing bolts, the gland packing is abutted to the upper bottom surface of the cylindrical packing, the disk springs are located between the gland packing and the packing bolts, the packing bolts are fixed on the valve body, and the packing bolts are in threaded connection with the valve body.

7. The meter ball valve of claim 6, wherein: the inlet and the outlet of the valve body are connected with clamping sleeve nuts, and the clamping sleeve nuts are connected with the valve body in a double-clamping sleeve mode.

8. The meter ball valve of claim 7, wherein: the packaging filler is made of polytetrafluoroethylene materials, and the clamping sleeve is an ion hardening clamping sleeve.