CN217927263U

CN217927263U - High-sealing-performance fixed soft sealing structure

Info

Publication number: CN217927263U
Application number: CN202222449888.XU
Authority: CN
Inventors: 胡中; 胡逸云
Original assignee: Wuxi Zhongcheng Automatic Control Valve Co ltd
Current assignee: Wuxi Zhongcheng Automatic Control Valve Co ltd
Priority date: 2022-09-16
Filing date: 2022-09-16
Publication date: 2022-11-29
Anticipated expiration: 2032-09-16

Abstract

The utility model discloses a soft seal structure is fixed to high leakproofness, including left valve body, right valve body and case, the first installation pipe of top fixedly connected with of left valve body, the bottom fixedly connected with second installation pipe of left valve body, the top fixedly connected with packing box of first installation pipe, the bottom fixedly connected with tail-hood of second installation pipe, the first boss of top fixedly connected with of case, first boss rotate with the bottom of packing box to be connected, and the bottom fixedly connected with second boss of case, second boss rotate with the top of tail-hood to be connected, the inner wall of left valve body and the inner wall of right valve body all are equipped with the mounting groove, and the mounting groove is the echelonment structure, and the joint has the disk seat in the mounting groove, one side fixedly connected with lug and the grafting ring of disk seat, lug and one side joint of grafting ring have soft seal pad. The utility model discloses can improve the stability of soft seal structure installation, and make case pivoted more nimble to make the ball valve more stable.

Description

High-sealing-performance fixed soft sealing structure

Technical Field

The utility model relates to a ball valve sealing technique field especially relates to a soft seal structure is fixed to high leakproofness.

Background

The ball valve, the opening and closing piece (spheroid) is driven by the valve stem, and round the valve that the ball valve axis makes rotary motion, also can be used to fluidic regulation and control, the medium that is particularly useful for containing fibre, tiny solid particle etc. and soft seal structure is the important component part of ball valve, and the service behavior of ball valve is seriously influenced to soft seal structure's sealed form.

At present, most of the existing soft sealing structures have the following defects: the installation stability is relatively poor, and sealed effect is not good, influences the soft seal effect of ball valve.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the shortcoming that exists among the prior art, and the fixed soft seal structure of a high leakproofness that proposes.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a fixed soft seal structure of high leakproofness, includes left valve body, right valve body and case, the first installation pipe of top fixedly connected with of left valve body, the bottom fixedly connected with second installation pipe of left valve body, the top fixedly connected with packing box of first installation pipe, the bottom fixedly connected with tail-hood of second installation pipe, the first boss of top fixedly connected with of case, first boss rotate with the bottom of packing box to be connected, and the bottom fixedly connected with second boss of case, second boss rotate with the top of tail-hood to be connected, the inner wall of left valve body and the inner wall of right valve body all are equipped with the mounting groove, and the mounting groove is the echelonment structure, and the joint has the disk seat in the mounting groove, one side fixedly connected with lug and the grafting ring of disk seat, lug and one side joint of grafting ring have soft seal pad, and sealing washer, adjustment gasket and disc spring have been cup jointed to the circumference outer wall of disk seat.

Furthermore, the top of the stuffing box is rotatably inserted with a valve rod, the bottom end of the valve rod is fixedly connected with a valve core, and the valve core is arranged in the left valve body.

Furthermore, one end of the left valve body and one end of the right valve body are fixedly connected with a connecting flange, and one side of the connecting flange is provided with a plurality of fixing holes.

Furthermore, a packing pressing sleeve is inserted into the top of the packing box, a packing gland is fixedly connected to the top of the packing box, and the packing gland presses the top of the packing pressing sleeve.

Furthermore, the outer wall of the valve rod is sleeved with a packing sizing block, and the packing sizing block is clamped with the packing box.

Further, the outer wall of the first boss and the outer wall of the second boss are sleeved with bearings.

Furthermore, the left valve body is connected with the right valve body through a flange.

The utility model has the advantages that:

1. the arrangement that the convex block and the inserting ring are in the step-shaped structure can facilitate better installation and fixation of the soft sealing gasket, so that the installation stability of the soft sealing structure is improved.

2. Through the cooperation design of sealing washer, adjusting shim and belleville spring, make the sealing washer have elasticity when the case rotates to make case pivoted more nimble, thereby make the ball valve more stable.

3. Through pegging graft the packing gland on the stuffing box, fix gland on the stuffing box again to fix the packing gland, thereby seal between valve rod and the stuffing box, promote the leakproofness of ball valve.

Drawings

Fig. 1 is a schematic perspective view of a high-sealing fixed soft sealing structure according to the present invention;

fig. 2 is a schematic view of a bottom view structure of a high-sealing fixed soft sealing structure provided by the present invention;

fig. 3 is a schematic sectional structural view of a high-sealing fixed soft sealing structure provided by the present invention;

fig. 4 is an enlarged schematic structural view of a position a of the high-sealing fixed soft sealing structure provided by the present invention;

fig. 5 is a schematic diagram of a partial explosion structure of the high-sealing fixed soft sealing structure of the present invention.

In the figure: 1. a left valve body; 2. a right valve body; 3. a first mounting tube; 4. a second mounting tube; 5. a stuffing box; 6. a valve stem; 7. a valve core; 8. a first boss; 9. a tail cap; 10. a second boss; 11. mounting grooves; 12. a valve seat; 13. a bump; 14. a plug-in ring; 15. a soft seal gasket; 16. a seal ring; 17. adjusting the gasket; 18. a belleville spring; 19. connecting a flange plate; 20. a fixing hole; 21. a packing gland; 22. pressing and sleeving the filler; 23. padding iron with filler; 24. and (5) a bearing.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the 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.

Referring to fig. 1-5, a high-sealing fixed soft seal structure, including a left valve body 1, a right valve body 2 and a valve core 7, a first installation pipe 3 is integrally formed at the top of the left valve body 1, a second installation pipe 4 is integrally formed at the bottom of the left valve body 1, a stuffing box 5 is fixed at the top end of the first installation pipe 3 through a bolt, a tail cover 9 is fixed at the bottom end of the second installation pipe 4 through a bolt, a first boss 8 is integrally formed at the top of the valve core 7, the first boss 8 is rotatably connected with the bottom of the stuffing box 5, a second boss 10 is integrally formed at the bottom of the valve core 7, the second boss 10 is rotatably connected with the top of the tail cover 9, mounting grooves 11 are formed on the inner wall of the left valve body 1 and the inner wall of the right valve body 2, the mounting grooves 11 are of a stepped structure, a valve seat 12 is clamped in the mounting grooves 11, a projection 13 and a plug ring 14 are integrally formed at one side of the valve seat 12, a sealing gasket 15 and a plug ring 14 are clamped at one side of the projection 13 and the plug ring 14, the sealing gasket 14 is designed to better fit the sealing gasket for the adjustment of the sealing gasket 18, and the sealing ring 16 of the valve seat, thereby enabling the rotary adjustment of the butterfly spring to be more flexibly adjusted when the butterfly valve to be adjusted, the butterfly spring, the butterfly valve seat, the butterfly spring is adjusted, and the butterfly valve plug 7, and the butterfly spring, thereby enabling the butterfly valve to be more flexibly adjusted, and the butterfly valve to be adjusted, and more flexibly adjusted.

The top of the stuffing box 5 is rotatably inserted with a valve rod 6, the bottom end of the valve rod 6 is fixedly connected with the valve core 7, the valve core 7 is arranged in the left valve body 1, the rotating valve rod 6 drives the valve core 7 to rotate, a ball valve can be used, one end of the left valve body 1 and one end of the right valve body 2 are integrally formed with a connecting flange 19, one side of the connecting flange 19 is provided with a plurality of fixing holes 20, the ball valve is fixedly installed through the connecting flange 19 and the fixing holes 20, a stuffing pressing sleeve 22 is inserted at the top of the stuffing box 5, a stuffing pressing cover 21 is fixed at the top of the stuffing pressing sleeve 22 through bolts, the stuffing pressing sleeve 22 is fixed, sealing is carried out between the valve rod 6 and the stuffing box 5, a stuffing iron pad 23 is sleeved on the outer wall of the valve rod 6, the stuffing iron pad 23 is clamped with the stuffing box 5, a bearing 24 is sleeved on the outer wall of the first boss 8 and the outer wall of the second boss 10, smooth rotation of the valve core 7 is convenient, and the left valve body 1 is connected with the right valve body 2 through the flanges.

The working principle of the embodiment is as follows: during the use, carry out fixed mounting to the ball valve through connecting flange 19 and fixed orifices 20, then, the rotary valve pole 6 drives case 7 and rotates, can use the ball valve, then, through sealing washer 16, adjusting shim 17 and disc spring 18's cooperation design, make sealing washer 16 have elasticity when case 7 rotates, then, peg graft packing pressure cover 22 on stuffing box 5, fix packing gland 21 on stuffing box 5 again, thereby fix packing pressure cover 22, thereby seal between valve pole 6 and stuffing box 5.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A high-sealing fixed soft sealing structure, which comprises a left valve body (1), a right valve body (2) and a valve core (7), it is characterized in that the top of the left valve body (1) is fixedly connected with a first installation pipe (3), the bottom of the left valve body (1) is fixedly connected with a second installation pipe (4), the top end of the first installation pipe (3) is fixedly connected with a stuffing box (5), the bottom end of the second installation pipe (4) is fixedly connected with a tail cover (9), the top of the valve core (7) is fixedly connected with a first boss (8), the first boss (8) is rotatably connected with the bottom of the stuffing box (5), the bottom of the valve core (7) is fixedly connected with a second boss (10), the second boss (10) is rotatably connected with the top of the tail cover (9), the inner wall of left side valve body (1) and the inner wall of right valve body (2) all are equipped with mounting groove (11), and mounting groove (11) are the echelonment structure, and the joint has disk seat (12) in mounting groove (11), one side fixedly connected with lug (13) and grafting ring (14) of disk seat (12), and one side joint of lug (13) and grafting ring (14) has soft sealing pad (15), and the circumference outer wall of disk seat (12) has cup jointed sealing washer (16), adjusting shim (17) and belleville spring (18).

2. The high-sealing fixed soft sealing structure is characterized in that a valve rod (6) is rotatably inserted into the top of the stuffing box (5), the bottom end of the valve rod (6) is fixedly connected with a valve core (7), and the valve core (7) is arranged in the left valve body (1).

3. The fixed soft sealing structure with high sealing performance according to claim 1, wherein one end of the left valve body (1) and one end of the right valve body (2) are fixedly connected with a connecting flange plate (19), and one side of the connecting flange plate (19) is provided with a plurality of fixing holes (20).

4. The high-sealing fixed soft seal structure as claimed in claim 1, wherein a packing pressing sleeve (22) is inserted into the top of the stuffing box (5), a packing gland (21) is fixedly connected to the top of the stuffing box (5), and the packing gland (21) presses on the top of the packing pressing sleeve (22).

5. The high-sealing-performance fixed soft sealing structure is characterized in that a packing sizing block (23) is sleeved on the outer wall of the valve rod (6), and the packing sizing block (23) is clamped with the packing box (5).

6. The high-sealing fixed soft seal structure according to claim 1, wherein bearings (24) are sleeved on the outer wall of the first boss (8) and the outer wall of the second boss (10).

7. The fixed soft seal structure of high leakproofness of claim 1 characterized in that the left valve body (1) and right valve body (2) are flanged.