CN212616465U

CN212616465U - Ball valve

Info

Publication number: CN212616465U
Application number: CN202021369138.6U
Authority: CN
Inventors: 胡隆; 余朝阳; 胡胜聪; 吕进益
Original assignee: Zhejiang Boda Valve Co ltd
Current assignee: Zhejiang Boda Valve Co ltd
Priority date: 2020-07-13
Filing date: 2020-07-13
Publication date: 2021-02-26
Anticipated expiration: 2030-07-13

Abstract

The utility model relates to a ball valve, be provided with the valve body of import and export respectively including the left and right sides, set up at the inside disk seat of valve body, rotate the spheroid that sets up on the disk seat and have a passageway, lower extreme adopt square shaft and spheroid upper end square hole interconnect's valve rod, integrated into one piece just are located the fixing base and the lid of spheroid top on the valve body and establish at the fixing base top and through the fixed end cover of double-screw bolt, its characterized in that: the utility model provides a ball valve that leakproofness is high, be difficult for revealing and conveniently operate the rotation valve rod, the valve rod upper end is rotated and is run through and be connected with the handle behind fixing base and the end cover, the inside seal assembly that is provided with of fixing base, the one end that the valve rod was kept away from to the handle is provided with the regulation length subassembly that is used for adjusting handle on-off control length, the utility model provides a ball valve.

Description

Ball valve

Technical Field

The utility model relates to the technical field of valves, concretely relates to ball valve.

Background

Ball valve, the opening and closing piece (ball) is driven by the valve rod and rotates around the axis of the ball valve. The hard seal V-shaped ball valve can also be used for regulating and controlling fluid, wherein a V-shaped ball core of the hard seal V-shaped ball valve and a metal valve seat of the build-up welding hard alloy have strong shearing force, and the hard seal V-shaped ball valve is particularly suitable for media containing fibers, tiny solid particles and the like. The multi-way ball valve can flexibly control the confluence, the diversion and the switching of the flow direction of the medium on the pipeline, and can close any channel to connect the other two channels. The valve of this type should be generally installed horizontally in the pipeline. The ball valve is divided into: pneumatic ball valves, electric ball valves, manual ball valves. Its valve rod department leakproofness of current ball valve structure is relatively poor, and the inside medium of valve body is revealed from spheroid and valve rod junction easily, causes the waste and the corresponding incident of medium, and its handle of current ball valve uses the restriction great simultaneously, in case when spheroid department blocking force is great, hardly rotates the valve rod and rotates the spheroid and open the ball valve, uses inconveniently, from this needs improve.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a ball valve that leakproofness is high, be difficult for revealing and make things convenient for the operation to rotate the valve rod.

The technical scheme of the utility model is realized like this: the utility model provides a ball valve, includes that the left and right sides is provided with the valve body of import and export respectively, sets up at the inside disk seat of valve body, rotates the spheroid that sets up on the disk seat and have a passageway, lower extreme adopt square shaft and spheroid upper end square hole interconnect's valve rod, integrated into one piece just are located the fixing base and the lid of spheroid top and establish at the fixing base top and through the fixed end cover of double-screw bolt, its characterized in that: the upper end of the valve rod is rotatably connected with a handle after penetrating through the fixed seat and the end cover, a sealing assembly is arranged in the fixed seat and comprises a mounting hole extending downwards from the upper surface of the fixed seat, an extending hole extending upwards from the lower surface of the fixed seat and communicated with the mounting hole, wherein the aperture of the extending hole is equal to the diameter of the valve rod, and an upper sealing ring and a lower sealing ring which are sequentially arranged on the valve rod from top to bottom and mutually contacted and extruded with the hole wall in the mounting hole, the upper end surface of the upper sealing ring is jointed with the lower end surface of the end cover, a middle ring is integrally formed on the side wall of the valve rod and positioned between the upper sealing ring and the lower sealing ring, the upper end surface and the lower end surface of the middle ring are respectively jointed with the lower end surface of the upper sealing ring and the upper end surface, the one end that the valve rod was kept away from to the handle is provided with the regulation length subassembly that is used for adjusting handle on-off control length, the regulation length subassembly includes the extension rod, the extension rod is offered towards the one end of handle and is supplied handle tip male first jack, vertical inside groove has been seted up on pore wall upper portion in the first jack, the up-and-down slip in the inside groove is provided with the slide, be fixed with the inserted bar on the slide, be provided with a plurality of second jacks along the length direction interval on the upper surface of the handle, the inserted bar lower extreme inserts in the second jack, be connected with the control head after the inserted bar upper end runs through the extension rod, the slide upper surface passes through coupling spring and is connected with the bottom in the inside groove.

By adopting the technical scheme, the sealing component is arranged in the fixed seat and comprises a mounting hole extending downwards from the upper surface of the fixed seat, an extending hole extending upwards from the lower surface of the fixed seat and communicated with the mounting hole, and the aperture of the extending hole is equal to the diameter of the valve rod, and an upper sealing ring and a lower sealing ring which are contacted and extruded with the hole wall in the mounting hole and are sequentially arranged on the valve rod from top to bottom, the upper end surface of the upper sealing ring is attached to the lower end surface of the end cover, a middle ring is integrally formed on the side wall of the valve rod and positioned between the upper sealing ring and the lower sealing ring, the upper end surface and the lower end surface of the middle ring are respectively attached to the lower end surface of the upper sealing ring and the upper end surface of the lower sealing ring, an annular mounting groove is circumferentially arranged on the side wall of the lower, the medium in the valve body is not easy to leak from the joint of the ball body and the valve rod, the medium waste and the corresponding safety accidents are avoided, the water leakage phenomenon cannot occur when the internal sealing structure of the valve body is damaged, the service life of the ball valve is prolonged, the problem that the ball valve is opened by rotating the ball body due to the fact that the valve rod is difficult to rotate due to clamping stagnation of the ball body is avoided, a length adjusting assembly for adjusting the on-off control length of the handle is arranged at one end of the handle, which is far away from the valve rod, when the ball valve is used, the control head is pulled upwards to drive the inserted rod to ascend, the lower end of the inserted rod is pulled out of the second insertion hole, the sliding plate slides upwards and ascends in the inner groove at the same time, the connecting spring is compressed, then the extension rod is pulled outwards, the control head is loosened, the sliding plate is driven to slide downwards and ascend, the extension rod is pulled in fixed back operation again and the rotatory valve rod of operation, has lengthened arm of force convenient to use, for prior art, the utility model provides a ball valve that leakproofness is high, be difficult for revealing and conveniently operate the rotation valve rod.

The utility model discloses further set up to: the utility model discloses a fixing base, including mounting hole, end cover, fixing base top, mounting hole upper port department has seted up annular first fixed slot along circumference, annular second fixed slot has been seted up along circumference on the outer wall of end cover orientation first fixed slot, form the annular chamber between first fixed slot and the second fixed slot after the fixing base top is installed to the end cover, install sealed ring circle in this annular chamber.

Through adopting above-mentioned technical scheme, in order to further improve the relative leakproofness between end cover and the fixing base upper surface, seted up annular first fixed slot along circumference in mounting hole upper end mouth department, annular second fixed slot has been seted up along circumference on the outer wall of first fixed slot to the end cover orientation, forms the annular chamber between first fixed slot and the second fixed slot after the fixing base top is installed to the end cover, installs sealed ring circle in this annular chamber.

The utility model discloses further set up to: the control head is cylindric and lateral wall middle part is seted up along circumference and is arc-shaped arc wall in longitudinal section.

Through adopting above-mentioned technical scheme, for the ease of operating upwards pulling control head, be cylindric and lateral wall middle part with the control head setting and seted up the longitudinal section along circumference and be curved arc wall.

The utility model discloses further set up to: a plurality of annular anti-skidding grooves are formed in the outer side wall of the extension rod at intervals along the length direction.

Through adopting above-mentioned technical scheme, for the ease of pulling the extension rod, relative frictional force between increase and the hand is provided with a plurality of annular antiskid groove along the length direction interval on the extension rod lateral wall.

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 structural diagram of an embodiment of the present invention.

Fig. 2 is a schematic view of an extension rod according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying 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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1-2, the utility model discloses a ball valve, including the left and right sides respectively be provided with the valve body 1 of import and export, set up at the inside disk seat 2 of valve body 1, rotate the spheroid 3 that sets up on disk seat 2 and have a passageway, the lower extreme adopts square shaft and spheroid 3 upper end square hole interconnect's valve rod 4, integrated into one piece just is located the fixing base 5 of spheroid 3 top on valve body 1 and covers and establish at fixing base 5 top and through the fixed end cover 6 of double-screw bolt, in the embodiment of the utility model, the upper end of valve rod 4 is rotated and is run through fixing base 5 and end cover 6 and be connected with handle 7, the inside seal assembly that is provided with of fixing base 5, seal assembly includes the mounting hole 8 that extends downwards from the upper surface of fixing base 5, upwards extends and communicates with mounting hole 8 and the aperture equals the extension hole 9 of valve rod 4 diameter from the lower surface of fixing, With the extruded upper seal ring 11 and the lower seal ring 12 of setting gradually on valve rod 4 by last under to of the pore wall mutual contact in mounting hole 8, the terminal surface is laminated under upper seal ring 11 up end and the end cover 6, integrated into one piece has the intermediate ring 13 on the valve rod 4 lateral wall and between being located upper seal ring 11 and lower seal ring 12, both ends face is laminated with terminal surface and lower seal ring 12 up end under upper seal ring 11 respectively about the intermediate ring 13, annular mounting groove 14 has been seted up along circumference on the lateral wall of valve rod 4 lower part and being located lower seal ring 12 below, annular mounting groove 14 internally mounted has annular sealing gasket 15, the one end that valve rod 4 was kept away from to handle 7 is provided with the regulation length subassembly that is used for adjusting handle 7 switch control length, the regulation length subassembly includes extension rod 21, extension rod 21 offers the first jack 22 that supplies handle 7 tip to insert towards the one end of handle 7, vertical inner groove 23 is opened on the upper portion of the inner hole wall of the first insertion hole 22, a sliding plate 24 is arranged in the inner groove 23 in a sliding and lifting manner, an insertion rod 25 is fixed on the sliding plate 24, a plurality of second insertion holes 26 are arranged on the upper surface of the handle 7 at intervals along the length direction, the lower end of the insertion rod 25 is inserted into the second insertion holes 26, the upper end of the insertion rod 25 penetrates through the extension rod 21 and then is connected with a control head 27, and the upper surface of the sliding plate 24 is connected with the inner bottom of the inner groove 23 through a connecting spring 28.

By adopting the technical scheme, the sealing assembly is arranged in the fixed seat 5 and comprises a mounting hole 8 extending downwards from the upper surface of the fixed seat 5, an extending hole 9 extending upwards from the lower surface of the fixed seat 5 and communicated with the mounting hole 8, wherein the aperture of the extending hole is equal to the diameter of the valve rod 4, an upper sealing ring 11 and a lower sealing ring 12 which are contacted and extruded with the inner hole wall of the mounting hole 8 are sequentially arranged on the valve rod 4 from top to bottom, the upper end surface of the upper sealing ring 11 is attached to the lower end surface of the end cover 6, a middle ring 13 is integrally formed on the side wall of the valve rod 4 and positioned between the upper sealing ring 11 and the lower sealing ring 12, the upper end surface and the lower end surface of the middle ring 13 are respectively attached to the lower end surface of the upper sealing ring 11 and the upper end surface of the lower sealing ring 12, an annular mounting groove 14 is formed, the arrangement of the structure greatly improves the sealing performance of the valve rod 4, the medium in the valve body 1 is not easy to leak from the joint of the ball body 3 and the valve rod 4, the waste of the medium and the corresponding safety accidents are avoided, the water leakage phenomenon cannot occur when the partial sealing structure in the valve body 1 is damaged, the service life of the ball valve is prolonged, in order to avoid the problem that the valve rod 4 is difficult to rotate the ball body 3 to open the ball valve due to the clamping stagnation of the ball body 3, the length adjusting component for adjusting the switch control length of the handle 7 is arranged at one end of the handle 7 far away from the valve rod 4, when the ball valve is used, the control head 27 is pulled upwards to drive the inserted rod 25 to ascend, the lower end of the inserted rod 25 is pulled out from the second jack 26, meanwhile, the sliding plate 24 slides upwards and ascends in the inner groove 23 to compress the connecting spring 28, then the extending rod 21 is pulled, drive 24 downslide of slide and go up and down, make the correspondence of inserted bar 25 lower extreme insert second jack 26, to carrying out relatively fixed between extension rod 21 and the handle 7, operate again after fixed and pull extension rod 21 and operate rotatory valve rod 4, lengthened arm of force convenient to use, for prior art, the utility model provides a ball valve that leakproofness is high, be difficult for revealing and conveniently operate the rotation valve rod.

In the embodiment of the present invention, the annular first fixing groove 16 is disposed along the circumferential direction at the upper end of the mounting hole 8, the annular second fixing groove 17 is disposed along the circumferential direction on the outer wall of the end cover 6 facing the first fixing groove 16, an annular cavity is formed between the first fixing groove 16 and the second fixing groove 17 after the end cover 6 is mounted on the top of the fixing seat 5, and a sealing ring 18 is installed in the annular cavity.

Through adopting above-mentioned technical scheme, in order to further improve the relative leakproofness between end cover 6 and the fixing base 5 upper surface, seted up annular first fixed slot 16 along circumference in mounting hole 8 upper end mouth department, annular second fixed slot 17 has been seted up along circumference on the outer wall of end cover 6 towards first fixed slot 16, form the annular chamber between first fixed slot 16 and the second fixed slot 17 after fixing base 5 top is installed to end cover 6, install sealed ring 18 in this annular chamber.

In the embodiment of the present invention, the control head 27 is cylindrical and the middle of the sidewall is circumferentially provided with an arc-shaped groove 29 with a curved longitudinal section.

Through adopting above-mentioned technical scheme, for the ease of the operation upwards stimulates control head 27, set up control head 27 and be cylindricly and lateral wall middle part and seted up the arc wall 29 that longitudinal section is curved along circumference.

In the embodiment of the present invention, a plurality of annular anti-slip grooves 30 are disposed on the outer side wall of the extension rod 21 along the length direction at intervals.

Through adopting above-mentioned technical scheme, in order to be convenient for pull extension rod 21, relative frictional force between increase and the hand is provided with a plurality of annular antiskid groove 30 along the length direction interval on extension rod 21 lateral wall.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a ball valve, be provided with valve body (1) of import and export respectively including the left and right sides, set up at inside disk seat (2) of valve body (1), ball (3) that the rotation set up on disk seat (2) and have a passageway, valve rod (4) that square shaft and ball (3) upper end square hole interconnect are adopted to the lower extreme, integrated into one piece just is located fixing base (5) of ball (3) top and lid and establishes at fixing base (5) top and through end cover (6) that the double-screw bolt is fixed on valve body (1), its characterized in that: the upper end of the valve rod (4) is rotatably connected with a handle (7) after penetrating through the fixing seat (5) and the end cover (6), a sealing assembly is arranged inside the fixing seat (5), the sealing assembly comprises a mounting hole (8) extending downwards from the upper surface of the fixing seat (5), an upper sealing ring (11) and a lower sealing ring (12) which are sequentially arranged on the valve rod (4) from top to bottom and are communicated with the mounting hole (8) from the lower surface of the fixing seat (5) and have the diameter equal to that of the valve rod (4), and an inner hole wall of the mounting hole (8) is contacted with each other to extrude the upper sealing ring (11) and the lower sealing ring (12) from top to bottom, the upper end surface of the upper sealing ring (11) is attached to the lower end surface of the end cover (6), a middle ring (13) is integrally formed on the side wall of the valve rod (4) and positioned between the upper sealing ring (11) and the lower sealing ring (12), the upper end surface and the, the sealing device is characterized in that an annular mounting groove (14) is formed in the side wall of the lower portion of the valve rod (4) and located below the lower sealing ring (12) along the circumferential direction, an annular sealing gasket (15) is arranged inside the annular mounting groove (14), a length adjusting component used for adjusting the on-off control length of the handle (7) is arranged at one end, far away from the valve rod (4), of the handle (7), the length adjusting component comprises an extension rod (21), a first insertion hole (22) for inserting the end portion of the handle (7) is formed in one end, facing the handle (7), of the extension rod (21), a vertical inner groove (23) is formed in the upper portion of the inner hole wall of the first insertion hole (22), a sliding plate (24) is arranged in the inner groove (23) in a vertically sliding mode, an insertion rod (25) is fixed on the sliding plate (24), and a plurality of second insertion holes, the lower end of the inserted rod (25) is inserted into the second insertion hole (26), the upper end of the inserted rod (25) penetrates through the extension rod (21) and then is connected with the control head (27), and the upper surface of the sliding plate (24) is connected with the bottom in the inner groove (23) through the connecting spring (28).

2. A ball valve according to claim 1, wherein: annular first fixed slot (16) have been seted up along circumference to mounting hole (8) upper port department, annular second fixed slot (17) have been seted up along circumference on end cover (6) the outer wall towards first fixed slot (16), form the annular chamber between first fixed slot (16) and second fixed slot (17) after fixing base (5) top is installed in end cover (6), install sealed ring circle (18) in this annular chamber.

3. A ball valve according to claim 1 or 2, wherein: the control head (27) is cylindrical, and the middle part of the side wall is provided with an arc-shaped groove (29) with an arc-shaped longitudinal section along the circumferential direction.

4. A ball valve according to claim 3, wherein: a plurality of annular anti-skidding grooves (30) are formed in the outer side wall of the extension rod (21) at intervals along the length direction.