CN115370787A - Valve rod sealing structure and eccentric half ball valve - Google Patents
Valve rod sealing structure and eccentric half ball valve Download PDFInfo
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- CN115370787A CN115370787A CN202211147903.3A CN202211147903A CN115370787A CN 115370787 A CN115370787 A CN 115370787A CN 202211147903 A CN202211147903 A CN 202211147903A CN 115370787 A CN115370787 A CN 115370787A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/06—Construction of housing; Use of materials therefor of taps or cocks
- F16K27/067—Construction of housing; Use of materials therefor of taps or cocks with spherical plugs
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K41/00—Spindle sealings
- F16K41/02—Spindle sealings with stuffing-box ; Sealing rings
- F16K41/023—Spindle sealings with stuffing-box ; Sealing rings for spindles which only rotate, i.e. non-rising spindles
- F16K41/026—Spindle sealings with stuffing-box ; Sealing rings for spindles which only rotate, i.e. non-rising spindles for rotating valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
- F16K5/0647—Spindles or actuating means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
- F16K5/0663—Packings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
- F16K5/0663—Packings
- F16K5/0668—Single packings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
- F16K5/0663—Packings
- F16K5/0694—Spindle sealings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/08—Details
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/08—Details
- F16K5/14—Special arrangements for separating the sealing faces or for pressing them together
- F16K5/20—Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Taps Or Cocks (AREA)
Abstract
The invention discloses a valve rod sealing structure and an eccentric half ball valve in the technical field of valve equipment, which comprises a valve body, wherein valve body joints are arranged at two ends of the valve body, a half ball valve clack is arranged inside the valve body, an upper valve rod and a lower valve rod are respectively fixedly arranged at the upper end and the lower end of the half ball valve clack, an upper cylinder and a lower cylinder corresponding to the upper valve rod and the lower valve rod are respectively fixedly arranged at the upper side and the lower side of the valve body, a sealing mechanism is arranged between the upper cylinder and the upper valve rod, a plurality of lower valve rod sealing rings are arranged between the side edge of the lower valve rod and the lower cylinder, the lower valve rod is provided with grooves matched with the lower valve rod sealing rings, a valve seat mechanism corresponding to the half ball valve clack is arranged at one end of the valve body, connecting pipes are correspondingly arranged at two ends of the valve body, and a middle block is arranged between one valve body joint and the connecting pipes in a matching manner. The invention can provide enough maintenance space, is convenient for cleaning and replacing internal parts, has higher maintenance efficiency, and simultaneously, the sealing ring on the side wall of the valve rod is convenient to replace, thereby meeting the sealing effect.
Description
Technical Field
The invention relates to the technical field of valve equipment, in particular to a valve rod sealing structure and an eccentric half ball valve.
Background
The eccentric half ball valve is widely applicable to working environments with strict requirements on cutting off of petroleum, chemical engineering, urban water supply and drainage and the like, provides a reliable control valve, is a novel ball valve type, has certain advantages unique to the structure of the eccentric half ball valve, such as good sealing, small opening and closing torque, capability of realizing adjustment and tight cutting off of a medium, and convenience for a user to operate.
The existing eccentric half ball valve still has some problems in the using process, and after the eccentric half ball valve is used for a period of time, the inner valve seat or the side wall can be rusted and abraded, the existing ball valve body is tightly attached to pipelines at two ends, the existing ball valve body is still difficult to separate effectively after being detached, and then the situation that the inner parts cannot be conveniently cleaned and replaced exists, so that the normal use and the service life are influenced.
Therefore, a valve rod sealing structure and an eccentric half ball valve are provided to solve the problems.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a valve rod sealing structure and an eccentric half ball valve.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a valve rod seal structure and eccentric half ball valve, includes the valve body, the valve body both ends are equipped with the valve body and connect, the inside hemisphere valve clack that is equipped with of valve body, hemisphere valve clack upper and lower end is fixed respectively and is equipped with valve rod and lower valve rod, the side is fixed respectively about the valve body is equipped with the last cylinder and lower cylinder that correspond with last valve rod and lower valve rod, go up the cylinder and be equipped with sealing mechanism between the valve rod, be equipped with a plurality of lower valve rod seal circle down between valve rod side and the lower cylinder down, and the valve rod is equipped with the recess that matches with a plurality of lower valve rod seal circle down, valve body one end is equipped with the disk seat mechanism who corresponds with the hemisphere valve clack, what the valve body both ends all corresponded is equipped with the connecting pipe, one the matching is equipped with the intermediate block between valve body joint and the connecting pipe.
Preferably, sealing mechanism includes the valve rod seal piece, it is equipped with the heavy groove that matches with the valve rod seal piece to go up the cylinder, and the valve rod seal piece inlays and establishes at heavy inslot, the valve rod seal piece cover is established on last valve rod, the valve rod seal piece is equipped with a plurality of last valve rod sealing washers with the side of last valve rod, and goes up the valve rod and be equipped with the recess that matches with a plurality of last valve rod sealing washers, be equipped with sealed sealing washer between valve rod seal piece bottom and the last cylinder, and go up the cylinder and be equipped with the caulking groove that matches with sealed sealing washer.
Preferably, the upper column body and the lower column body are respectively provided with a through hole corresponding to the upper valve rod and the lower valve rod, the upper end of the upper column body is provided with an upper column body joint, the upper valve rod extends out of a port of the upper column body, and the lower end of the lower column body is closed.
Preferably, disk seat mechanism includes cyclic annular disk seat, be equipped with the annular caulking groove that matches with cyclic annular disk seat in the valve body connects, and be equipped with the valve seat sealing washer between cyclic annular disk seat and the annular caulking groove, cyclic annular disk seat one end matches with hemisphere valve clack terminal surface, it is equipped with the flange ring to match between intermediate block and the cyclic annular disk seat, the cyclic annular disk seat is equipped with cyclic annular caulking groove with the one end that the flange ring corresponds, and matches in the cyclic annular caulking groove and be equipped with first flange sealing washer.
Preferably, a flange ring is also arranged between the connecting pipe and the valve body joint in a matching manner, and a flange ring is also arranged between the connecting pipe and the middle block in a matching manner.
Preferably, the midblock both sides are equipped with the second flange seal circle that corresponds with the flange ring, the midblock both sides are equipped with the caulking groove that corresponds with two second flange seal circles, and the caulking groove evenly fixes all around and is equipped with a plurality of lugs, second flange seal circle one side is equipped with the constant head tank that corresponds with a plurality of lugs, the radius of midblock is less than valve body joint and connecting pipe, and valve body joint and connecting pipe pass through a plurality of bolt fixed connection, midblock one side is rotated through the pivot with the valve body and is connected, the fixed locating piece that is equipped with in midblock one side, the fixed locating lever that is equipped with of valve body lateral wall cross line, the locating piece is equipped with the fluting that corresponds with the locating lever, and the fluting is the arc, the locating piece lateral wall is fixed with the handle.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, the gap is arranged between the valve body and the connecting pipe, the middle block is rotatably arranged in the gap, the valve body and the connecting pipe can be fixed through a plurality of bolts, the middle block can be tightly clamped in the middle through the effect of the plurality of bolts, the second flange sealing rings are correspondingly arranged on two sides of the middle block, the sealing property can be effectively ensured, the gap can be rotated and extracted when the middle block is overhauled, so that enough overhauling space is provided, the internal parts can be conveniently cleaned and replaced, the working efficiency is effectively improved, meanwhile, the valve rod sealing block, the corresponding upper valve rod sealing ring and the sealing block sealing ring are arranged on the side edge of the upper valve rod of the hemispherical valve clack, the corresponding lower valve rod sealing ring is arranged on the side edge of the lower valve rod of the hemispherical valve clack, the upper valve rod sealing ring and the sealing block sealing ring can be conveniently replaced, and the sealing effect of the valve rod is effectively met.
Drawings
Fig. 1 is a schematic structural diagram of a valve rod sealing structure and an eccentric hemisphere valve provided by the invention.
Fig. 2 is a schematic bottom view of a valve stem sealing structure and an eccentric hemisphere valve according to the present invention.
Fig. 3 is a schematic cross-sectional structural view of a valve body in the eccentric half ball valve and a valve rod sealing structure provided by the invention.
Fig. 4 is a schematic cross-sectional structure diagram of the valve rod sealing structure and the upper column body and the valve rod sealing block in the eccentric hemisphere valve according to the present invention.
Fig. 5 is a schematic structural diagram of a valve rod sealing structure and an eccentric hemisphere valve provided by the present invention after the middle block is rotationally adjusted.
Fig. 6 is a schematic structural diagram of a valve stem sealing structure and an annular valve seat in an eccentric hemisphere valve according to the present invention.
Fig. 7 is a schematic structural diagram of a valve stem sealing structure and a second flange sealing ring in an eccentric half ball valve according to the present invention.
In the figure: the valve comprises a valve body 1, a valve body joint 2, a hemispherical valve clack 3, an upper valve rod 4, a lower valve rod 5, an upper cylinder 6, a lower cylinder 7, a lower valve rod sealing ring 8, a connecting pipe 9, a middle block 10, a valve rod sealing block 11, an upper valve rod sealing ring 12, a sealing block sealing ring 13, an upper cylinder joint 14, an annular valve seat 15, a valve seat sealing ring 16, a flange ring 17, a first flange sealing ring 18, a second flange sealing ring 19, a convex block 20, a positioning groove 21, a positioning block 22, a positioning rod 23 and a handle 24.
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.
Referring to fig. 1-7, after the existing eccentric half ball valve is used for a period of time, the internal valve seat or side wall can be rusted and abraded, and the existing ball valve body is tightly attached to the pipelines at two ends and still difficult to be effectively separated after being disassembled, so that the situation that the internal parts cannot be conveniently cleaned and replaced exists, and thus the normal use and the service life are affected, the scheme provides a valve rod sealing structure and an eccentric half ball valve, which comprises a valve body 1, valve body joints 2 are arranged at two ends of the valve body 1, the valve body joints 2 are used for butt joint, a half ball valve clack 3 is arranged inside the valve body 1, an upper valve rod 4 and a lower valve rod 5 are respectively fixedly arranged at the upper end and the lower end of the half ball valve clack 3, the upper valve rod 4 and the lower valve rod 5 are detachably fixed with the half ball valve clack 3, an upper cylinder 6 and a lower cylinder 7 corresponding to the upper valve rod 4 and the lower valve rod 5 are respectively fixedly arranged at the upper side and the lower side of the valve body 1, a sealing mechanism is arranged between the upper cylinder 6 and the upper valve rod 4, the sealing mechanism comprises a valve rod sealing block 11, the upper cylinder 6 is provided with a sinking groove matched with the valve rod sealing block 11, the valve rod sealing block 11 is embedded in the sinking groove, the valve rod sealing block 11 can be effectively embedded and positioned with the sinking groove and can be drawn out, the valve rod sealing block 11 is sleeved on the upper valve rod 4, the side edges of the valve rod sealing block 11 and the upper valve rod 4 are provided with a plurality of upper valve rod sealing rings 12, the upper valve rod 4 is provided with grooves matched with the upper valve rod sealing rings 12, a plurality of upper valve rod sealing rings 12 are coated with lubricating oil, the rotation of the upper valve rod 4 can be effectively ensured, the sealing effect can be ensured, a sealing block sealing ring 13 is arranged between the bottom end of the valve rod sealing block 11 and the upper cylinder 6, the sealing block sealing ring 13 plays a sealing role, the upper cylinder 6 is provided with an embedding groove matched with the sealing block sealing ring 13, after the valve rod sealing block 11 is drawn out, can be to the convenient change of a plurality of upper valve rod sealing washer 12 and sealed piece sealing washer 13, be equipped with a plurality of lower valve rod sealing washers 8 between lower valve rod 5 side and the lower cylinder 7, and lower valve rod 5 is equipped with the recess that matches with a plurality of lower valve rod sealing washers 8, scribble lubricating oil on a plurality of lower valve rod sealing washers 8, can effectively ensure the rotation of going up valve rod 4, and can guarantee sealed effect, go up cylinder 6 and lower cylinder 7 and be equipped with the through-hole that corresponds with last valve rod 4 and lower valve rod 5 respectively, it connects 14 to be equipped with the cylinder on the cylinder 6, and go up cylinder 6 that valve rod 4 extends, go up 4 upper ends of valve rod and the current control mechanism butt joints of outside, 7 lower extremes of lower cylinder are sealed.
1 one end of valve body is equipped with the disk seat mechanism who corresponds with hemisphere valve clack 3, disk seat mechanism includes cyclic annular disk seat 15, be equipped with the annular caulking groove that matches with cyclic annular disk seat 15 in the valve body connects 2, and be equipped with valve seat seal 16 between cyclic annular disk seat 15 and the annular caulking groove, cyclic annular disk seat 15 can inlay in the annular caulking groove, convenient dismantlement and installation, and with ensure sealed effect between the valve seat seal 16, 15 one end of cyclic annular disk seat matches with hemisphere valve clack 3 terminal surface, hemisphere valve clack 3 and the laminating of cyclic annular disk seat 15, play effective sealed effect, it is equipped with flange ring 17 to match between intermediate block 10 and the cyclic annular disk seat 15, flange ring 17 plays sealed effect, the one end that cyclic annular disk seat 15 and flange ring 17 correspond is equipped with cyclic annular caulking groove, and the matching is equipped with first flange seal 18 in the cyclic annular caulking groove, first flange seal 18 plays sealed effect.
The two ends of the valve body 1 are correspondingly provided with connecting pipes 9, the connecting pipes 9 are pipelines through which fluid flows, the connecting pipes 9 can be fixedly connected with the valve body joints 2 through a plurality of bolts, the connecting pipes 9 and the valve body joints 2 are respectively provided with a plurality of corresponding round holes which are used for being matched with the bolts, an intermediate block 10 is arranged between one valve body joint 2 and the connecting pipes 9 in a matching way, the intermediate block 10 is circular, a flange ring 17 is also arranged between the connecting pipes 9 and the valve body joints 2 in a matching way, a flange ring 17 is also arranged between the connecting pipes 9 and the intermediate block 10 in a matching way, the two sides of the intermediate block 10 are provided with second flange sealing rings 19 corresponding to the flange ring 17, the second flange sealing rings 19 play a role in effective joint sealing, the two sides of the intermediate block 10 are provided with caulking grooves corresponding to the two second flange sealing rings 19, a plurality of lugs 20 are uniformly fixed around the caulking grooves, and one side of each second flange sealing ring 19 is provided with positioning grooves 21 corresponding to the plurality of lugs 20, the width of the plurality of bumps 20 is smaller than the depth of the positioning groove 21, so that the side edge of the second flange sealing ring 19 protrudes out of the middle block 10, the plurality of bumps 20 effectively limit the second flange sealing ring 19, the second flange sealing ring 19 is prevented from falling off during operation, the radius of the middle block 10 is smaller than that of the valve body joint 2 and the connecting pipe 9, the valve body joint 2 is fixedly connected with the connecting pipe 9 through a plurality of bolts, the middle block 10 is clamped in the middle through a plurality of bolts, one side of the middle block 10 is rotatably connected with the valve body 1 through a rotating shaft, the middle block 10 can be rotatably drawn out of a gap during maintenance, so that a sufficient maintenance space is provided, convenient cleaning and replacement of internal parts are realized, a positioning block 22 is fixedly arranged on one side of the middle block 10, a positioning rod 23 is fixedly arranged on the transverse line of the side wall of the valve body 1, the positioning block 22 is provided with a groove corresponding to the positioning rod 23, and the groove is arc-shaped, the positioning rod 23 may correspond to the slot of the positioning block 22 to position the middle block 10, and a handle 24 is fixed to a side wall of the positioning block 22, and the middle block 10 can be rotated by the handle 24.
In the invention, the working principle of the device is as follows:
during maintenance operation, the middle block 10 between the valve body connector 2 and the connecting pipe 9 can be rotated out, a plurality of bolts are firstly disassembled and taken out, then the middle block 10 is operated by the handle 24 to rotate, the middle block 10 is rotated and drawn out, a gap is reserved, and the gap provides enough maintenance space, the annular valve seat 15 can be conveniently cleaned and replaced, then the annular valve seat 15 is embedded into the annular caulking groove, the middle block 10 is reset, the flange rings 17 on two corresponding sides are embedded on two sides of the middle block 10, the second flange sealing rings 19 on two sides of the middle block 10 are effectively limited by a plurality of bumps 20, the middle block 10 rotates to reset and extrude two sides, the second flange sealing rings 19 cannot be extruded and fall off, and when the middle block 10 rotates to the positioning rod 23 and can correspond to the slotting of the positioning block 22, a plurality of bolts can be fixed at the moment; meanwhile, during maintenance, the valve rod sealing block 11 can be pulled out, and a plurality of upper valve rod sealing rings 12 and sealing block sealing rings 13 can be replaced conveniently.
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 the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (6)
1. The utility model provides a valve rod seal structure and eccentric half ball valve, includes valve body (1), valve body (1) both ends are equipped with valve body joint (2), its characterized in that, valve body (1) inside is equipped with hemisphere valve clack (3), the lower extreme is fixed respectively and is equipped with valve rod (4) and lower valve rod (5) about hemisphere valve clack (3), the side is fixed respectively about valve body (1) is equipped with and goes up cylinder (6) and lower cylinder (7) that correspond with last valve rod (4) and lower valve rod (5), it is equipped with sealing mechanism to go up between cylinder (6) and last valve rod (4), be equipped with a plurality of lower valve rod sealing washer (8) down between valve rod (5) side and lower cylinder (7), and valve rod (5) are equipped with the recess that matches with a plurality of lower valve rod sealing washer (8) down, valve body (1) one end is equipped with the disk seat mechanism that corresponds with hemisphere valve clack (3), the both ends of valve body (1) all correspond are equipped with connecting pipe (9), one it is equipped with intermediate block (10) to match between valve body joint (2) and connecting pipe (9).
2. The valve rod sealing structure and the eccentric hemisphere valve as claimed in claim 1, wherein the sealing mechanism includes a valve rod sealing block (11), the upper cylinder (6) is provided with a sinking groove matched with the valve rod sealing block (11), the valve rod sealing block (11) is embedded in the sinking groove, the valve rod sealing block (11) is sleeved on the upper valve rod (4), a plurality of upper valve rod sealing rings (12) are arranged on the side edges of the valve rod sealing block (11) and the upper valve rod (4), the upper valve rod (4) is provided with a groove matched with the upper valve rod sealing rings (12), a sealing block sealing ring (13) is arranged between the bottom end of the valve rod sealing block (11) and the upper cylinder (6), and the upper cylinder (6) is provided with an embedding groove matched with the sealing block sealing ring (13).
3. The valve rod sealing structure and the eccentric hemisphere valve according to claim 1, wherein the upper cylinder (6) and the lower cylinder (7) are respectively provided with a through hole corresponding to the upper valve rod (4) and the lower valve rod (5), an upper cylinder joint (14) is arranged at the upper end of the upper cylinder (6), the upper valve rod (4) extends out of a port of the upper cylinder (6), and the lower end of the lower cylinder (7) is closed.
4. The valve rod sealing structure and the eccentric hemisphere valve according to claim 1, wherein the valve seat mechanism comprises an annular valve seat (15), an annular caulking groove matched with the annular valve seat (15) is formed in the valve body connector (2), a valve seat sealing ring (16) is arranged between the annular valve seat (15) and the annular caulking groove, one end of the annular valve seat (15) is matched with the end face of the hemispherical valve clack (3), a flange ring (17) is arranged between the middle block (10) and the annular valve seat (15) in a matched mode, an annular caulking groove is formed in one end, corresponding to the flange ring (17), of the annular valve seat (15), and a first flange sealing ring (18) is arranged in the annular caulking groove in a matched mode.
5. The valve rod sealing structure and the eccentric hemisphere valve according to claim 4, characterized in that a flange ring (17) is also arranged between the connecting pipe (9) and the valve body joint (2) in a matching manner, and a flange ring (17) is also arranged between the connecting pipe (9) and the middle block (10) in a matching manner.
6. The valve rod sealing structure and the eccentric hemisphere valve according to claim 5, wherein the two sides of the middle block (10) are provided with second flange sealing rings (19) corresponding to the flange rings (17), the two sides of the middle block (10) are provided with caulking grooves corresponding to the two second flange sealing rings (19), a plurality of convex blocks (20) are uniformly and fixedly arranged around the caulking grooves, one side of each second flange sealing ring (19) is provided with positioning grooves (21) corresponding to the plurality of convex blocks (20), the radius of the middle block (10) is smaller than that of each valve body joint (2) and the corresponding connecting pipe (9), each valve body joint (2) and the corresponding connecting pipe (9) are fixedly connected through a plurality of bolts, one side of the middle block (10) is rotatably connected with the corresponding valve body (1) through a rotating shaft, one side of the middle block (10) is fixedly provided with a positioning block (22), a positioning rod (23) is fixedly arranged on a transverse line of the side wall of the valve body (1), the positioning block (22) is provided with a groove corresponding to the positioning rod (23), and the positioning block (22) is arc-shaped, and a handle (24) is fixedly arranged on the side wall of the positioning block (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211147903.3A CN115370787A (en) | 2022-09-21 | 2022-09-21 | Valve rod sealing structure and eccentric half ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211147903.3A CN115370787A (en) | 2022-09-21 | 2022-09-21 | Valve rod sealing structure and eccentric half ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115370787A true CN115370787A (en) | 2022-11-22 |
Family
ID=84072179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211147903.3A Pending CN115370787A (en) | 2022-09-21 | 2022-09-21 | Valve rod sealing structure and eccentric half ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115370787A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116717642A (en) * | 2023-08-07 | 2023-09-08 | 山东阳光博士太阳能工程有限公司 | Pipeline connecting device of photo-thermal and photovoltaic integrated assembly |
-
2022
- 2022-09-21 CN CN202211147903.3A patent/CN115370787A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116717642A (en) * | 2023-08-07 | 2023-09-08 | 山东阳光博士太阳能工程有限公司 | Pipeline connecting device of photo-thermal and photovoltaic integrated assembly |
| CN116717642B (en) * | 2023-08-07 | 2023-11-03 | 山东阳光博士太阳能工程有限公司 | Pipeline connecting device of photo-thermal and photovoltaic integrated assembly |
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