CN215806622U

CN215806622U - Sealing structure for connecting valve rod and valve body of fluorine-lined regulating valve

Info

Publication number: CN215806622U
Application number: CN202122440864.3U
Authority: CN
Inventors: 金建淼; 周梅丽; 李智勇
Original assignee: Shanghai Samusen Valve Co ltd
Current assignee: Shanghai Samusen Valve Co ltd
Priority date: 2021-10-11
Filing date: 2021-10-11
Publication date: 2022-02-11
Anticipated expiration: 2031-10-11

Abstract

The utility model discloses a sealing structure for connecting a valve rod and a valve body of a fluorine lining regulating valve, which comprises a valve seat, wherein the top of the valve seat is fixedly connected with the valve body, the top of the valve body is fixedly connected with a valve cap through a threaded rod, the valve cap is connected with the valve rod in a penetrating and rotating way, one end of the valve rod extends to the inside of the valve seat, the outer wall of the valve rod is provided with a blocking structure for preventing the valve seat from leaking, and the top end of the valve rod is provided with a slot. Is more convenient to use.

Description

Sealing structure for connecting valve rod and valve body of fluorine-lined regulating valve

Technical Field

The utility model relates to the technical field of regulating valves, in particular to a sealing structure for connecting a valve rod and a valve body of a fluorine-lined regulating valve.

Background

In the field of industrial automation process control, a final control element for changing process parameters such as medium flow, pressure, temperature, liquid level and the like by receiving a control signal output by an adjusting control unit and by means of power operation generally comprises an actuating mechanism and a valve, wherein if the adjusting valve is in a straight stroke and an angular stroke according to stroke characteristics; the pneumatic regulating valve, the electric regulating valve and the hydraulic regulating valve can be divided into three types according to the power used by the matched executing mechanism; the regulating valve is divided into three types, namely a linear characteristic, an equal percentage characteristic and a parabolic characteristic according to functions and characteristics, is suitable for media such as air, water, steam, various corrosive media, slurry, oil and the like, and is classified commonly: pneumatic regulating valve, electric regulating valve, hydraulic regulating valve and self-operated regulating valve.

The regulating valve in the prior art has a certain gap at the joint between the valve rod and the valve body, so that gas or flowing water in the valve body is easy to overflow to cause leakage, a certain trouble is brought to the plugging work of a pipeline, and meanwhile, all parts cannot be detached, so that the maintenance and the replacement are inconvenient.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art, and provides a sealing structure for connecting a valve rod and a valve body of a fluorine-lined regulating valve.

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

the utility model provides a seal structure that lining fluorine governing valve's valve rod and valve body are connected, includes the disk seat, the top fixedly connected with valve body of disk seat, threaded rod fixedly connected with valve cap is passed through at the top of valve body, the valve cap runs through to rotate and is connected with the valve rod, the one end of valve rod extends to the inside of disk seat, be provided with the block structure who prevents the disk seat and leak on the valve rod outer wall, the slot has been seted up on the top of valve rod, it has the handle to peg graft in the slot, the inside of valve rod is provided with and is used for carrying out the fixed subassembly fixed to the handle.

Preferably, the shutoff subassembly establishes the connection pad on the valve rod including the cover, the top symmetry of connection pad is provided with two connecting plates, screw rod fixed connection is passed through to connecting plate and valve rod, the bottom symmetry of connection pad is provided with two telescopic links, the same sealed tube of bottom fixedly connected with of telescopic link, sealed tube and valve rod slip cap establish the connection, the cover is equipped with first spring on the telescopic link, the top of first spring and the bottom fixed connection of connection pad, the bottom of first spring and the top fixed connection of sealed tube, the circular slot of pegging graft mutually with the sealed tube is seted up at the top of disk seat, the top fixedly connected with and the inconsistent sealing washer of sealed tube of disk seat.

Preferably, the fixing component comprises a fixing seat fixedly connected to the inner wall of the bottom of the slot, the fixing seat is of a hollow structure, the inner wall of one side of the fixing seat is slidably connected with two sliding plates, two second springs are fixedly connected between the sliding plates, one side of each sliding plate is fixedly connected with a fixing rod extending to the outer side of the fixing seat, two fixing holes spliced with the fixing rods are formed in two sides of the handle, two corresponding sliding holes are formed in the outer walls of the handle and the slot, and one side of each sliding plate is fixedly connected with a handle penetrating through the two sliding holes and extending to the outer side of the valve rod.

Preferably, the outer wall of the valve rod is fixedly sleeved with a sealing plug, and the sealing plug is positioned below the inner part of the sealing pipe.

Preferably, the top of the valve seat is provided with an installation groove, and the installation groove is inserted into the valve body.

Preferably, the bottom of the valve body and the top of the valve seat are clamped with sealing gaskets.

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

1. according to the utility model, the valve body is inserted into the mounting groove and fixed with the valve seat by the threaded rod, the sealing gasket is arranged between the valve body and the valve seat to increase the sealing property, the valve cap is taken out and placed at the top of the valve body by the aid of screws, the valve rod is driven to rotate by the rotating handle, the valve rod drives the connecting disc to rotate, the connecting disc drives the sealing pipe to rotate by the aid of the two telescopic rods and the first spring, the sealing pipe is pressed downwards by the first spring to be tightly attached to the sealing ring and is clamped tightly with the circular groove, and the sealing property of the valve rod and the valve body is improved.

2. According to the utility model, the handle is of a detachable structure, the two grab handles are pinched to drive the two sliding plates to mutually approach, the sliding plates drive the fixed rod to move out of the fixed hole, the braking on the handle is released, and the handle can be taken out and replaced.

The valve body is inserted into the mounting groove, the threaded rod is used for mounting the valve body, the sealing gasket is arranged to increase the sealing performance of the valve body, the connecting pipe is arranged to cover the sealing plug, the sealing effect of the joint of the valve rod and the valve seat is increased, the two first springs are used for pressing the sealing pipe to enable the sealing pipe to be tightly attached to the sealing ring, the sealing effect is better, the handle is of a detachable structure, the replacement is convenient, and the use is more facilitated.

Drawings

FIG. 1 is a front cross-sectional view of a sealing structure for connecting a valve rod and a valve body of a fluorine-lined regulating valve according to the present invention;

FIG. 2 is an enlarged view of part A of a sealing structure for connecting a valve rod and a valve body of a fluorine-lined regulating valve, which is provided by the utility model;

FIG. 3 is an enlarged view of a portion B of a sealing structure for connecting a valve rod and a valve body of a fluorine-lined regulating valve according to the present invention;

fig. 4 is a three-dimensional schematic diagram of a valve rod of a sealing structure for connecting the valve rod and a valve body of a fluorine lining regulating valve.

In the figure: 1. a valve seat; 2. mounting grooves; 3. a gasket; 4. a valve body; 5. a bonnet; 6. a handle; 7. a valve stem; 8. a sealing tube; 9. a first spring; 10. a telescopic rod; 11. a connecting disc; 12. a connecting plate; 13. a screw; 14. a seal ring; 15. a circular groove; 16. sealing; 17. a fixed seat; 18. a second spring; 19. a sliding plate; 20. a handle; 21. fixing the rod; 22. a fixing hole; 23. a slide hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Example one

Referring to fig. 1-4, a sealing structure that lining fluorine governing valve's valve rod and valve body are connected, including disk seat 1, disk seat 1's top fixedly connected with valve body 4, threaded rod fixedly connected with valve cap 5 is passed through at valve body 4's top, valve cap 5 runs through and rotates and is connected with valve rod 7, the one end of valve rod 7 extends to the inside of disk seat 1, be provided with the block structure who prevents disk seat 1 and leak on the valve rod 7 outer wall, the slot has been seted up on valve rod 7's top, it has handle 6 to peg graft in the slot, the inside of valve rod 7 is provided with and is used for carrying out the fixed subassembly fixed to handle 6.

Example two

The embodiment is improved on the basis of the first embodiment: referring to fig. 1-4, a sealing structure for connecting a valve rod and a valve body of a fluorine lining regulating valve comprises a valve seat 1, wherein the top of the valve seat 1 is fixedly connected with a valve body 4, the top of the valve seat 1 is provided with a mounting groove 2, the mounting groove 2 is spliced with the valve body 4, the top of the valve body 4 is fixedly connected with a valve cap 5 through a threaded rod, the bottom of the valve body 4 and the top of the valve seat 1 are clamped with a sealing gasket 3, the sealing gasket 3 is arranged between the valve body 4 and the valve seat 1 to increase the sealing property of the valve body, the valve cap 5 is in penetrating rotation connection with a valve rod 7, the outer wall of the valve rod 7 is fixedly sleeved with a sealing plug 16, the sealing plug 16 is positioned below the inner part of a sealing pipe 8, one end of the valve rod 7 extends to the inner part of the valve seat 1, the outer wall of the valve rod 7 is provided with a sealing structure for preventing the leakage of the valve seat 1, the sealing assembly comprises a connecting disc 11 sleeved on the valve rod 7, and two connecting discs 12 are symmetrically arranged at the top of the connecting disc 11, the connecting plate 12 is fixedly connected with the valve rod 7 through a screw 13, two telescopic rods 10 are symmetrically arranged at the bottom of a connecting disc 11, the bottom of each telescopic rod 10 is fixedly connected with the same sealing tube 8, the sealing tube 8 is connected with the valve rod 7 in a sliding sleeve mode, a first spring 9 is sleeved on each telescopic rod 10, the top of each first spring 9 is fixedly connected with the bottom of the connecting disc 11, the bottom of each first spring 9 is fixedly connected with the top of the corresponding sealing tube 8, a circular groove 15 which is inserted into the corresponding sealing tube 8 is formed in the top of the valve seat 1, the corresponding sealing tube 8 is tightly pressed downwards by the corresponding first spring 9 and tightly attached to the corresponding sealing ring 14, the corresponding sealing ring 15 is tightly connected with the corresponding circular groove, the sealing performance of the valve rod 7 and the valve body 4 is improved, the sealing ring 14 which is abutted against the corresponding sealing tube 8 is fixedly connected to the top of the valve rod 1, a handle 6 is inserted into the corresponding slot, and a fixing component for fixing the handle 6 is arranged inside the valve rod 7, fixed subassembly includes fixed connection at the fixing base 17 of slot bottom inner wall, fixing base 17 is hollow structure, one side inner wall sliding connection of fixing base 17 has two sliding plates 19, two second springs 18 of fixedly connected with between two sliding plates 19, one side fixedly connected with of sliding plate 19 extends to the dead lever 21 in the fixing base 17 outside, two fixed orifices 22 of pegging graft mutually with dead lever 21 are seted up to the both sides of handle 6, two corresponding sliding holes 23 have been seted up on the outer wall of handle 6 and slot, one side fixedly connected with of sliding plate 19 runs through the grab handle 20 that two sliding holes 23 extend to the valve rod 7 outside, handle 6 is detachable construction, hold between the fingers two grab handles 20, it is close to each other to drive two sliding plates 19, sliding plate 19 drives in dead lever 21 shifts out fixed orifices 22, remove the braking to handle 6, can take out handle 6, change it.

The working principle is as follows: the valve body 4 is inserted into the mounting groove 2, the threaded rod is used for fixing the valve body 4 and the valve seat 1, a sealing gasket 3 is arranged between the valve body 4 and the valve seat 1, the sealing performance of the valve body is improved, the valve cap 5 is taken out and placed at the top of the valve body 4 through screws, the handle 6 is rotated to drive the valve rod 7 to rotate, the valve rod 7 drives the connecting disc 11 to rotate, the connecting disc 11 drives the sealing pipe 8 to rotate through the two telescopic rods 10 and the first spring 9, the first spring 9 downwards compresses the sealing pipe 8 to be tightly attached to the sealing ring 14, the connecting disc is connected with the circular groove 15 in a clamping mode, the sealing performance of the valve rod 7 and the valve body 4 is improved, the handle 6 is of a detachable structure, the two handles 20 are pinched, the two sliding plates 19 are driven to be close to each other, the sliding plates 19 drive the fixing rods 21 to move out of the fixing holes 22, the braking on the handle 6 is released, the handle 6 can be taken out, and the handle 6 can be replaced.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. The utility model provides a seal structure that lining fluorine governing valve's valve rod and valve body are connected, includes disk seat (1), its characterized in that, the top fixedly connected with valve body (4) of disk seat (1), threaded rod fixedly connected with valve cap (5) are passed through at the top of valve body (4), valve cap (5) run through the rotation and are connected with valve rod (7), the one end of valve rod (7) extends to the inside of disk seat (1), be provided with the block structure who prevents disk seat (1) leakage on valve rod (7) outer wall, the slot has been seted up on the top of valve rod (7), it has handle (6) to peg graft in the slot, the inside of valve rod (7) is provided with and is used for carrying out the fixed subassembly fixed to handle (6).

2. The sealing structure for connecting the valve rod and the valve body of the fluorine lining regulating valve according to claim 1, wherein the sealing structure comprises a connecting disc (11) sleeved on the valve rod (7), the top of the connecting disc (11) is symmetrically provided with two connecting plates (12), the connecting plates (12) and the valve rod (7) are fixedly connected through a screw (13), the bottom of the connecting disc (11) is symmetrically provided with two telescopic rods (10), the bottom of each telescopic rod (10) is fixedly connected with the same sealing tube (8), the sealing tubes (8) and the valve rod (7) are slidably sleeved and connected, the telescopic rods (10) are sleeved with first springs (9), the top of each first spring (9) is fixedly connected with the bottom of the connecting disc (11), and the bottom of each first spring (9) is fixedly connected with the top of the sealing tube (8), the top of the valve seat (1) is provided with a circular groove (15) which is inserted with the sealing pipe (8), and the top of the valve seat (1) is fixedly connected with a sealing ring (14) which is inconsistent with the sealing pipe (8).

3. The sealing structure for connecting the valve rod and the valve body of the fluorine-lined regulating valve according to claim 1, it is characterized in that the fixing component comprises a fixing seat (17) fixedly connected with the inner wall of the bottom of the slot, the fixed seat (17) is of a hollow structure, the inner wall of one side of the fixed seat (17) is connected with two sliding plates (19) in a sliding way, two second springs (18) are fixedly connected between the two sliding plates (19), one side of the sliding plate (19) is fixedly connected with a fixed rod (21) which extends to the outer side of the fixed seat (17), two sides of the handle (6) are provided with two fixing holes (22) which are inserted with the fixing rod (21), two corresponding sliding holes (23) are arranged on the outer walls of the handle (6) and the slot, one side of the sliding plate (19) is fixedly connected with a grab handle (20) which penetrates through the two sliding holes (23) and extends to the outer side of the valve rod (7).

4. The sealing structure for connecting the valve rod and the valve body of the fluorine lining regulating valve according to claim 2, characterized in that a sealing plug (16) is fixedly sleeved on the outer wall of the valve rod (7), and the sealing plug (16) is positioned below the inner part of the sealing pipe (8).

5. The sealing structure for connecting the valve rod and the valve body of the fluorine lining regulating valve according to claim 1, wherein the top of the valve seat (1) is provided with an installation groove (2), and the installation groove (2) is inserted into the valve body (4).

6. The sealing structure for connecting the valve rod and the valve body of the fluorine-lined regulating valve according to claim 1, wherein the bottom of the valve body (4) and the top of the valve seat (1) sandwich the sealing gasket (3).