CN211203042U

CN211203042U - Hemisphere valve seal structure

Info

Publication number: CN211203042U
Application number: CN201922340114.1U
Authority: CN
Inventors: 陈建勋; 牛海军; 乔良; 陈旭; 李大伟
Original assignee: ZHENGZHOU VALVE FACTORY
Current assignee: ZHENGZHOU VALVE FACTORY
Priority date: 2019-12-23
Filing date: 2019-12-23
Publication date: 2020-08-07
Anticipated expiration: 2029-12-23

Abstract

The utility model relates to a hemisphere valve seal structure, set up in the link of hemisphere valve and conveyer pipe, it includes the connecting seat that sets up in hemisphere valve one side and sets up in conveyer pipe one end and the mount pad of detachable connection with the connecting seat, the mount pad is laminated with the connecting seat terminal surface, and the laminating department is formed with annular built-in groove, built-in groove one end is provided with the logical groove that communicates the external world, and the inside matches and is provided with the pneumatic seal pipe, pneumatic seal pipe one end is connected with the gas tube, the gas tube sets up in logical groove; one end of the through groove, which is far away from the built-in groove, is communicated with two caulking grooves, the two caulking grooves are respectively arranged on the joint end surfaces of the connecting seat and the mounting seat, the bottom end of the side wall is provided with a fixing hole, and the inflation tube can extend into the fixing hole; sealing devices are arranged in the two caulking grooves and can fix the inflation tube. The utility model has the advantages of good sealing performance and strong practicability.

Description

Hemisphere valve seal structure

Technical Field

The utility model belongs to the technical field of the technique of hemisphere valve and specifically relates to a hemisphere valve seal structure is related to.

Background

The semi-ball valve is a novel valve developed for solving the technical problem of conveying two-phase mixed flow media such as solution, ore pulp and the like, has the advantages of convenience in use, long service life, safety, reliability and the like, is widely applied to conveying equipment of two-phase media such as water, steam, sewage, petrochemical industry, natural gas, solution, ore pulp and the like, and plays a very important role in industrial production and life of people.

The existing half-ball valve mainly comprises a valve body, a valve rod, a rotating handle, a half-ball piece, a filler, a sealing ring and the like, wherein the valve rod can be driven to move up and down by rotating the handle, so that the position of the half-ball piece is adjusted, and the opening and closing of a conveying channel in the valve body are controlled.

Because the service environment of the hemispherical valve is relatively complex, the joints of the hemispherical valve and related pipelines such as petroleum, natural gas, solution, ore pulp and the like are often subjected to sealing treatment, and the rubber gaskets are filled inside the hemispherical valve to prevent the materials conveyed inside the hemispherical valve from leaking. However, in the actual use process, due to corrosion and rust of the connection end of the hemispherical valve and the conveying pipeline and deformation of the rubber gasket, after a period of use, leakage of materials often occurs at the connection section of the hemispherical valve and the conveying pipeline. Therefore, a sealing structure which has good sealing performance and strong practicability and is suitable for the semi-spherical valve and the conveying pipeline connected with the semi-spherical valve is needed.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, one of the purposes of the utility model is to provide a hemisphere valve seal structure that the leakproofness is good, the practicality is strong.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

a sealing structure of a half ball valve is arranged at the connecting end of the half ball valve and a conveying pipe and comprises a connecting seat arranged on one side of the half ball valve and an installation seat which is arranged at one end of the conveying pipe and is detachably connected with the connecting seat, wherein the installation seat is attached to the end surface of the connecting seat, an annular built-in groove is formed at the attaching position, a through groove communicated with the outside is formed at one end of the built-in groove, a pneumatic sealing pipe is arranged inside the built-in groove in a matched mode, one end of the pneumatic sealing pipe is connected with an inflation; one end of the through groove, which is far away from the built-in groove, is communicated with two caulking grooves, the two caulking grooves are respectively arranged on the joint end surfaces of the connecting seat and the mounting seat, the bottom end of the side wall is provided with a fixing hole, and the inflation tube can extend into the fixing hole; sealing devices are arranged in the two caulking grooves and can fix the inflation tube.

Through adopting the technical scheme, the utility model discloses a be provided with pneumatic seal tube between connecting seat and the mount pad, pneumatic seal tube intussuseption is full of after gaseous, can be including the effect of external pressure difference down the shutoff in built-in groove to seal the link of mount pad and connecting seat. One side of the pneumatic sealing tube is connected with an inflation tube, the top end of the inflation tube extends into the fixing hole and is fixedly sealed by the sealing device, air leakage is not easy to occur in the using process, air is conveniently supplemented, and the sealing device is directly loosened to supplement air.

The present invention may be further configured in a preferred embodiment as: the sealing device comprises locking blocks arranged in the two caulking grooves, one ends of the two locking blocks, which are far away from each other, are hinged to the inner wall of the caulking grooves, one ends, which are close to each other, are provided with locking holes, the locking holes are connected with sealing bolts in an internal thread mode, and the bottom ends of the sealing bolts are abutted to the inflation tubes.

Through adopting above-mentioned technical scheme, sealing device comprises two locking pieces, and the inside lockhole that forms of two locking pieces, sealing bolt are twisted into in the lockhole to compress tightly the gas tube, make pneumatic seal pipe and external isolated, inside gas is difficult for revealing, and then makes the sealed of connecting seat and mount pad more stable.

The present invention may be further configured in a preferred embodiment as: the diameter of the lock hole is larger than that of the through groove.

Through adopting above-mentioned technical scheme, the diameter of lockhole is greater than the internal diameter of through-hole for sealing bolt's bottom can compress tightly the gas tube on the bottom inner wall of caulking the hole, improves the utility model discloses a leakproofness.

The present invention may be further configured in a preferred embodiment as: the lock hole is internally provided with a butt plate in a matching manner, and the butt plate is arranged between the sealing bolt and the inflation tube.

Through adopting above-mentioned technical scheme, be provided with the butt plate between sealing bolt and the gas tube, the effort that sealing bolt gave can be accepted to the butt plate, compresses tightly the gas tube. And, be provided with the screw thread on sealing bolt's the lateral wall, probably fish tail gas tube at the in-process of extrusion gas tube, cause gas leakage, accept the setting of board and avoided sealing bolt and gas tube's direct contact, further improved the utility model discloses a practicality.

The utility model can be further configured in a preferred example as: two lugs are symmetrically arranged at two ends of the abutting plate, two sliding grooves are axially arranged in the locking hole, and the lugs are arranged in the sliding grooves in a matching mode.

Through adopting above-mentioned technical scheme, the both ends of butt board are provided with the lug to be connected with the lockhole through the lug, the setting up of lug and spout makes and accepts the board at the in-process that sealing bolt twisted or twisted out, can not rotate along with sealing bolt's rotation, only takes place displacement from top to bottom, is difficult for causing the injury to the gas tube.

The present invention may be further configured in a preferred embodiment as: the built-in groove, the mounting seat and the connecting seat share the same central axis.

Through adopting above-mentioned technical scheme, built-in groove and mount pad and the setting of connecting seat coaxial line make its inside pneumatic seal circle and mount pad and the coaxial line of connecting seat, evenly seal the link of mount pad and connecting seat.

The present invention may be further configured in a preferred embodiment as: the diameter of the tail end of the inflation tube is smaller than that of one end of the inflation tube connected with the pneumatic sealing tube.

Through adopting above-mentioned technical scheme, the terminal internal diameter of gas tube is less than its diameter of connecting pneumatic sealed tube one end, and at the in-process of twist in or unscrew sealing bolt, difficult violent gas leakage makes things convenient for operating personnel to control it.

The present invention may be further configured in a preferred embodiment as: the mounting seat is connected with the connecting seat through a flange.

Through adopting above-mentioned technical scheme, mount pad and connecting seat flange joint, are connected stably, and dismantle the convenience, the later stage of being convenient for is to the maintenance of pneumatic sealed tube.

To sum up, the utility model discloses a following at least one useful technological effect:

1. the pneumatic sealing tube is arranged between the connecting seat and the mounting seat, and after the pneumatic sealing tube is filled with gas, the pneumatic sealing tube can be blocked in the built-in groove under the action of the difference of internal and external pressure, and the connecting end of the mounting seat and the connecting seat is sealed;

2. one side of the pneumatic sealing tube is connected with an inflation tube, the top end of the inflation tube extends into the fixing hole and is fixedly sealed by the sealing device, air leakage is not easy to occur in the using process, air supplement is convenient, and the practicability is high.

Drawings

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

fig. 2 is a cross-sectional view of the sealing device of the present invention;

FIG. 3 is an assembly view of the sealing device of the present invention;

figure 4 is a cross-sectional view of the fill tube of the present invention.

Reference numerals: 1. a connecting seat; 11. a built-in groove; 12. a through groove; 13. caulking grooves; 131. a fixing hole; 2. a mounting seat; 3. a pneumatic sealing tube; 31. an inflation tube; 41. a locking block; 411. a lock hole; 412. a chute; 42. a seal bolt; 43. a butt joint plate; 431. and (4) a bump.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 and 2, for the utility model discloses a sealing structure of a hemisphere valve, set up in the link of hemisphere valve and conveyer pipe, including flange joint's connecting seat 1 and mount pad 2, connecting seat 1 sets up in arbitrary one side of hemisphere valve, and mount pad 2 sets up in the one end of conveyer pipe to in the laminating of connecting seat 1 terminal surface. The joint of connecting seat 1 and mount pad 2 is formed with annular built-in groove 11, built-in groove 11 and connecting seat 1 and mount pad 2 coaxial line, and inside is provided with pneumatic tube sealer 3, and the one end of pneumatic tube sealer 3 is connected with gas tube 31, can aerify in pneumatic tube sealer 3 through gas tube 31, makes pneumatic tube sealer 3 fill in built-in groove 11 under the effect of interior external pressure difference, realizes the sealed to connecting seat 1 and the 2 links of mount pad.

Referring to fig. 2 and 3, a through groove 12 is formed at one end of the built-in groove 11, and the through groove 12 is disposed perpendicular to a sidewall of the built-in groove 11 and communicates with the outside. Lead to groove 12 and keep away from the one end intercommunication of built-in groove 11 and have two caulking grooves 13, two caulking grooves 13 set up on the laminating terminal surface of connecting seat 1 and mount pad 2, and set up caulking groove 13 lateral wall bottom on mount pad 2 and be provided with fixed orifices 131, and fixed orifices 131 is parallel to the axis direction of mount pad 2 to run through the setting of mount pad 2. The end of the gas tube 31 not connected with the pneumatic sealing tube 3 extends out of the built-in groove 11 from the through groove 12, bends at the bottom end of the caulking groove 13, and is inserted into the fixing hole 131 in a matching manner. Sealing devices are arranged in the two caulking grooves 13, the sealing devices can squeeze the bent parts of the inflation tubes 31 to block the inflation tubes 31 from being communicated with the outside, so that the pneumatic sealing tube 3 is not easy to leak air, and the sealing effect is more stably exerted.

Referring to fig. 2 and 3, the sealing device includes locking blocks 41 disposed in the two caulking grooves 13 in a matching manner, one ends of the two locking blocks 41, which are far away from each other, are hinged to the inner wall of the caulking groove 13, one ends of the two locking blocks are close to each other and are connected in a matching manner, a locking hole 411 is formed, the diameter of the locking hole 411 is larger than that of the through groove 12, a sealing bolt 42 is connected to the inner portion of the locking hole in a threaded manner, the bottom end of the sealing bolt 42 is abutted to the inflation tube 31, and the.

Referring to fig. 2 and 4, in order to further improve the sealing performance of the connection end of the connection seat 1 and the installation seat 2 and make the gas in the pneumatic sealing tube 3 not easy to leak, the inner diameter of the end of the inflation tube 31 not connected with the pneumatic sealing tube 3 is smaller than the inner diameter of the end of the inflation tube connected with the pneumatic sealing tube 3, and the inflation tube can extend out of the fixing hole 131. After the inflation operation of the pneumatic sealing tube 3 is completed, when the inflation tube 31 needs to be closed, one end of the inflation tube 31 extending out of the fixing hole 131 can be closed in the closing operation process, so that a large amount of gas leakage in the process of closing the inflation tube 31 is avoided. Referring to fig. 3, in order to better close the inflation tube 31, a butt plate 43 is disposed in the locking hole 411, the butt plate 43 is disposed at the bottom end of the sealing bolt 42 and matches with the inner diameter of the locking hole 411, and two protrusions 431 are symmetrically disposed on two sides; two sliding grooves 412 are arranged in the locking hole 411 along the axial direction, and two protruding blocks 431 are arranged in the sliding grooves 412 in a sliding manner. When the sealing bolt 42 is screwed into the locking hole 411, the sealing bolt 42 presses the abutting plate 43 to move downward, and the gas tube 31 is pressed by the abutting plate 43, so that the gas in the gas tube 31 and the pneumatic sealing tube 3 is not easy to leak out.

The implementation principle of the embodiment is as follows: the connecting seat 1 is connected with the mounting seat 2 through flanges, the pneumatic sealing pipe 3 is filled in the built-in groove 11, the pneumatic sealing pipe 3 is inflated through the inflation pipe 31 extending out of the fixing hole 131, when the pressure value in the pneumatic sealing pipe 3 reaches a set value, the two locking blocks 41 are closed, and the sealing bolt 42 is screwed into the locking hole 411; during screwing, the sealing bolt 42 pushes the abutment plate 43 at the bottom end to move downward until the abutment plate 43 presses against the upper end of the inflation tube 31, and then the screwing of the sealing bolt 42 is stopped. After a period of use, the sealing bolt 42 may be loosened and the pneumatic sealing tube 3 may be replenished with gas through the gas-filled tube 31.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a hemisphere valve seal structure, sets up in the link of hemisphere valve and conveyer pipe, its characterized in that: the pneumatic sealing device comprises a connecting seat (1) arranged on one side of a hemispherical valve and a mounting seat (2) arranged at one end of a conveying pipe and detachably connected with the connecting seat (1), wherein the mounting seat (2) is attached to the end face of the connecting seat (1), an annular built-in groove (11) is formed at the attaching position, a through groove (12) communicated with the outside is formed in one end of the built-in groove (11), a pneumatic sealing pipe (3) is arranged inside the built-in groove in a matched mode, one end of the pneumatic sealing pipe (3) is connected with an inflation pipe (31), and the inflation pipe (31) is arranged in the through groove (12); one end, far away from the built-in groove (11), of the through groove (12) is communicated with two caulking grooves (13), the two caulking grooves (13) are respectively arranged on the joint end surfaces of the connecting seat (1) and the mounting seat (2), the bottom end of the side wall is provided with a fixing hole (131), and the inflation tube (31) can extend into the fixing hole (131); sealing devices are arranged in the two caulking grooves (13), and the sealing devices can fix the inflation tube (31).

2. A hemisphere valve seal structure according to claim 1, characterized in that: sealing device is including setting up locking piece (41) in two caulking grooves (13), and the one end that two locking pieces (41) kept away from each other all is articulated with the inner wall of caulking groove (13), and the one end that is close to each other is formed with lockhole (411), lockhole (411) female connection has sealing bolt (42), sealing bolt (42) bottom and gas tube (31) butt.

3. A hemisphere valve seal structure according to claim 2, characterized in that: the diameter of the lock hole (411) is larger than that of the through groove (12).

4. A hemisphere valve seal structure according to claim 2, characterized in that: a butt joint plate (43) is arranged in the lock hole (411) in a matched mode, and the butt joint plate (43) is arranged between the sealing bolt (42) and the inflation tube (31).

5. A hemisphere valve seal structure according to claim 4, characterized by: two ends of the abutting plate (43) are symmetrically provided with two convex blocks (431), two sliding grooves (412) are axially arranged in the lock hole (411), and the two convex blocks (431) are arranged in the sliding grooves (412) in a matched mode.

6. A hemisphere valve seal structure according to claim 1, characterized in that: the built-in groove (11), the mounting seat (2) and the connecting seat (1) share the same central axis.

7. A hemisphere valve seal structure according to claim 1, characterized in that: the diameter of the tail end of the inflation tube (31) is smaller than that of one end of the inflation tube connected with the pneumatic sealing tube (3).

8. A hemisphere valve seal structure according to claim 1, characterized in that: the mounting seat (2) is connected with the connecting seat (1) through a flange.