CN210003865U

CN210003865U - ball valve with valve seat capable of floating and adjusting

Info

Publication number: CN210003865U
Application number: CN201920562128.5U
Authority: CN
Inventors: 项策
Original assignee: Jaden Valve Fittings Co Ltd
Current assignee: Jaden Valve Fittings Co Ltd
Priority date: 2019-04-23
Filing date: 2019-04-23
Publication date: 2020-01-31
Anticipated expiration: 2029-04-23

Abstract

The utility model discloses a ball valve that disk seat can float adjustment, including valve body and valve gap, be equipped with the runner in the valve body, install the valve rod on the valve gap, go up the valve rod and install the spheroid, be equipped with the valve seat in the valve body, the position that the valve body inside corresponds the valve seat is seted up two installation cavities that are the symmetric distribution along the center pin of valve seat, all be provided with the floating assembly in each installation cavity, and the apron that the lid was located the installation cavity, every floating assembly all includes the design frame, it has the unsteady breach that supplies the valve seat to slide in, the movable support, its end is equipped with the revolving axle, its other end is equipped with the locating wheel, the locating wheel is located unsteady breach department and constitutes the ejection cooperation with the valve seat, drive spring, it is located between design frame and the movable support, make the locating wheel have the trend of carrying out the ejection motion towards the valve seat through self effort, and locating part, it is used for spacing movable support's positive, the angle of reversal.

Description

ball valve with valve seat capable of floating and adjusting

Technical Field

The utility model relates to an kind ball valves, in particular to ball valve that kind disk seat can float the adjustment.

Background

The ball valve is of a common valve , the closing element of the ball valve is a ball, the ball rotates 90 degrees around the center line of the valve body to achieve valves which are opened and closed, and the main functions of the ball valve in a pipeline are to cut off, adjust the flow of a medium or change the flow direction of the medium.

The existing ball valve usually depends on the tight contact between the ball body and the valve seat to realize sealing, but because of the existence of production tolerance, and in the long-term use process, the fatigue accumulation problem occurs to the ball body or the valve seat, which easily causes the gap between the ball body and the valve seat when sealing, and causes the internal leakage of the ball valve.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a but kinds of disk seats floatage adjustment's ball valve, the sealing performance of assurance ball valve that can be better.

ball valves that disk seat can float and adjust, including the valve body and set up in the valve gap of the valve body upper end, the valve body in open the runner that supplies the fluid medium to circulate, the valve gap on install wear to establish to the runner the upper valve stem, the upper valve stem locate at end of runner install along with the synchronous pivoted spheroid of upper valve stem, the valve body in be equipped with the valve seat that cooperates the spheroid to realize sealing, the valve body on lie in the spheroid below be equipped with the mounting hole, the mounting hole in be equipped with wear to establish the spheroid lower valve stem, the valve body outer wall be equipped with and cover the lower end cap who establishes the mounting hole;

the inside position that corresponds the disk seat of valve body set up two installation cavities that are the symmetric distribution along the center pin of disk seat, each the installation cavity in all be provided with constitute ejection complex with the disk seat and float the subassembly, reach the lid and locate the installation cavity and will float the apron that the subassembly is spacing in the installation cavity, every the subassembly that floats all include:

the shaping frame is provided with floating gaps for the valve seat to slide in;

a rotating shaft is arranged at the end of the movable support, the movable support is in rotating fit with the shaping frame through the rotating shaft, and a positioning wheel is arranged at the other end of the movable support and is positioned at the floating notch and used for pushing the valve seat;

the driving spring is arranged between the shaping frame and the movable support, and enables the positioning wheel on the movable support to have a tendency of pushing movement towards the valve seat through self reset acting force;

and the limiting piece is used for limiting the forward and reverse rotation angles of the movable support.

, arranging a positioning surface in arc shape matched with at end of the valve seat facing the positioning wheel, and the positioning wheel is abutted against the positioning surface to push the valve seat.

, arranging multiple positioning holes in the movable support facing end of the valve seat, and fixing positioning rod in the center of the positioning wheel for inserting into the corresponding positioning hole and forming damping fit with the inner wall of the positioning hole.

, the movable support is provided with a groove for the drive spring to extend into, the end of the drive spring is fixed on the shaping frame, and the other end of the drive spring extends into the groove and is fixed with the bottom end of the groove.

, the position limiter includes a position limiter and a second position limiter, the position limiter is located at the side of the movable bracket along the direction of pushing the valve seat, the second position limiter is located at the other side of the movable bracket relative to the position limiter, the position limiter and the second position limiter are respectively and fixedly provided with a connecting rod fixedly connected with the shaping frame to realize the fixation of the self position.

step setting is advanced to the design frame emollient injector has set firmly, the emollient injector including being the circular shape fixed area and surrounding in the hose of fixed area, fixed area and design frame fixed connection, the hose have stretch out in the hose import of design frame and apron and stretch into the hose export to the revolving axle, the apron be equipped with the passageway that supplies the hose import to place, the passageway insert and be equipped with the rubber buffer with hose import confined.

The utility model has the advantages that:

1. two installation cavities are the symmetric distribution along the center pin of disk seat, all set up the subassembly that floats at two installation cavities from this, utilize two subassemblies that float to come the sealed cooperation degree of adaptation spheroid and disk seat to the ejection of disk seat to improve the effective sealing performance of ball valve, and reached good effect in practical application, had very big extension space and market value.

2. The installation of the floating assembly is simpler in the ball valve, namely the floating assembly is arranged in the installation cavity during production, and the floating assembly is limited by the cover plate to prevent the floating assembly from falling off, and the floating assembly can be independently produced, so that the production efficiency is improved, and the maintenance process in the later period is facilitated.

3. The sizing frame is provided with floating notches for the valve seat to slide in, the positioning wheel at the end of the movable support is positioned at the movable notches to push against the valve seat, the movable support in the sizing frame is matched with the valve seat through the floating notches, and the structure is simple and reasonable.

4. The disk seat is equipped with locating wheel assorted locating surface, and the locating wheel homoenergetic is rather than the locating surface phase-match in its motion, has guaranteed the surface length of contact to make the locating wheel better ejection disk seat under movable support's rotation, compare in structures such as square simultaneously, the locating wheel can be more smooth and easy with the cooperation that is the arc threadiness locating surface, and stability is better.

5. The arrangement of a plurality of locating holes on the movable support can install the locating wheel in the position of better cooperation with the disk seat in practical application, has improved the adaptability ability in the specific use.

6. In order to ensure that the rotating shaft can stably and smoothly rotate for a long time, the rotating shaft needs to be maintained by frequently adding a lubricant, and how to conveniently and quickly inject the lubricant is problems, the ball valve is provided with a lubricant injector, a circular fixing area is used for fixing the same shaping frame at , the lubricant is injected through a hose inlet and flows to the rotating shaft through a hose outlet, meanwhile, in order to avoid disassembling a lower cover plate, a channel for placing the hose inlet is also arranged on the cover plate, and a user only needs to inject the lubricant into the hose inlet in the channel, so that the ball valve is very convenient.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment;

fig. 2 is an enlarged view of a portion a in fig. 1.

In the figure, 11, a valve body, 12, a valve cover, 13, an upper valve rod, 14, a flow channel, 15, a ball, 16, a valve seat, 160, a positioning surface, 17, an installation hole, 18, a lower valve rod, 19, a lower end cover, 3, an installation cavity, 41, a shaping frame, 410, a floating notch, 42, a movable support, 421, a rotating shaft, 422, a positioning wheel, 4220, a positioning inserted rod, 43, a driving spring, 5, a cover plate, 6, a positioning hole, 7, a groove, 81, a limiting piece, 82, a second limiting piece, 91, a fixing area, 92, a hose, 921, a hose inlet, a rubber plug 922, a hose outlet, 93 and a hose inlet are arranged.

Detailed Description

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

Referring to fig. 1 and 2, ball valve with a floatably adjustable valve seat comprises a valve body 11 and a valve cover 12 disposed at the upper end of the valve body 11, wherein a flow passage 14 for a fluid medium to flow through is formed in the valve body 11, an upper valve rod 13 penetrating the flow passage 14 is mounted on the valve cover 12, a ball 15 synchronously rotating with the upper valve rod 13 is mounted at the end of the upper valve rod 13 located in the flow passage 14, a valve seat 16 for sealing with the ball 15 is disposed in the valve body 11, a mounting hole 17 is disposed below the ball 15 on the valve body 11, a lower valve rod 18 penetrating the ball 15 is disposed in the mounting hole 17, a lower end cap 19 covering the mounting hole 17 is disposed on the outer wall of the valve body 11, an actuator or a handle (not shown in the drawings) is disposed at the upper end of the upper valve rod 13 for driving the upper valve rod 13 to rotate in the circumferential direction thereof, and the upper valve rod 13 drives the ball 15 to rotate synchronously, thereby sealing the flow passage 14 by the cooperation of the ball valve 15 and the valve seat 16.

Two installation cavities 3 that are the symmetric distribution along the center pin of disk seat 16 are seted up to the inside position that corresponds disk seat 16 of valve body 11, all be provided with in each installation cavity 3 and constitute ejection complex floating assembly with disk seat 16, and cover and locate installation cavity 3 and will float the apron 5 that the subassembly is spacing in installation cavity 3, and every floating assemblies all include design frame 41, movable support 42, driving spring 43 and locating part, wherein:

① the fixing frame 41 has a floating notch 410 for sliding the valve seat 16, and after the fixing frame 41 is inserted into the installation cavity 3, the valve seat 16 is located at the floating notch 410;

② A rotary shaft 421 is set at end of the movable support 42 and forms rotary fit with the shaping frame 41 through the rotary shaft 421, a positioning wheel 422 is set at end, the positioning wheel 422 is fixed on the movable support 42 and moves synchronously with the movable support 42;

the movable support 42 is sequentially provided with a plurality of positioning holes 6 facing the end of the valve seat 16 for mounting the positioning wheel 422, the center of the positioning wheel 422 is fixedly provided with positioning insertion rods 4220 for inserting into the corresponding positioning holes 6 and forming damping fit with the inner walls of the positioning holes 6, and according to actual application situations, the positioning insertion rods 4220 on the positioning wheel 422 are inserted into the proper positioning holes 6 to enhance applicability.

The positioning wheel 422 is positioned at the floating notch 410 and used for pushing the valve seat 16, the section of the positioning wheel 422 is circular, the end of the valve seat 16 facing the positioning wheel 422 is provided with a positioning surface 160 which is matched with the positioning wheel 422 and is in an arc shape, and the positioning wheel 422 is abutted against the positioning surface 160 to push the valve seat 16;

③ the driving spring 43 is set between the shaping frame 41 and the movable support 42, and the positioning wheel 422 on the movable support 42 has the tendency of pushing towards the valve seat 16 by the self-reset acting force;

the movable support 42 is provided with a groove 7 for the driving spring 43 to extend into, and the end of the driving spring 43 is fixedly arranged on the shaping frame 41, and the other end of the driving spring 43 extends into the groove 7 and is fixed with the bottom end of the groove 7.

④ the position limiter is used to limit the forward and backward rotation angle of the movable bracket 42, and includes a position limiter 81 and a second position limiter 82, the position limiter 81 is located at the side of the movable bracket 42 along the direction of pushing against the valve seat 16, the second position limiter 82 is located at the other side of the movable bracket 42 relative to the position limiter 81, and the position limiter 81 and the second position limiter 82 are respectively and fixedly provided with a connecting rod (not shown) that is fixedly connected with the fixing frame 41 to fix the position of the connecting rod.

In addition, the fixing frame 41 is fixedly provided with lubricant injector, the lubricant injector comprises a circular fixing area 91 and a hose 92 surrounding the fixing area 91, the fixing area 91 is fixedly connected with the fixing frame 41, the hose 92 has a hose inlet 921 extending out of the fixing frame 41 and the cover plate 5, and a hose outlet 922 extending into the rotating shaft 421, the cover plate 5 is provided with a channel (not shown) for placing the hose inlet 921, and a rubber plug 93 for sealing the hose inlet 921 is inserted into the channel.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims

A ball valve with a valve seat capable of being adjusted in a floating mode comprises a valve body (11) and a valve cover (12) arranged at the upper end of the valve body (11), a flow channel (14) for flowing of fluid media is formed in the valve body (11), an upper valve rod (13) penetrating through the flow channel (14) is installed on the valve cover (12), a ball body (15) synchronously rotating along with the upper valve rod (13) is installed at the end of the upper valve rod (13), a valve seat (16) matched with the ball body (15) to achieve sealing is arranged in the valve body (11), a mounting hole (17) is formed in the valve body (11) and located below the ball body (15), a lower valve rod (18) penetrating through the ball body (15) is arranged in the mounting hole (17), and a lower end cover (19) covering the mounting hole (17) is arranged on the outer wall of the valve body (11),

valve body (11) inside position that corresponds disk seat (16) set up two installation cavity (3) that are symmetric distribution along the center pin of disk seat (16), each installation cavity (3) in all be provided with and constitute ejection complex floating assembly with disk seat (16) and cover and locate installation cavity (3) and will float apron (5) that the subassembly is spacing in installation cavity (3), every the floating assembly all include:

a sizing frame (41) having a floating notch (410) into which the valve seat (16) slides;

a rotating shaft (421) is arranged at the end of the movable support (42) and forms rotating fit with the shaping frame (41) through the rotating shaft (421), a positioning wheel (422) is arranged at the other end of the movable support, and the positioning wheel (422) is positioned at the floating notch (410) and is used for pushing the valve seat (16);

the driving spring (43) is arranged between the shaping frame (41) and the movable support (42), and enables the positioning wheel (422) on the movable support (42) to have a tendency of pushing movement towards the valve seat (16) through self reset acting force;

and a limiting piece for limiting the forward and reverse rotation angles of the movable bracket (42).
2. type ball valve with float adjustable valve seat as claimed in claim 1, wherein the end of the valve seat (16) facing the positioning wheel (422) is provided with a positioning surface (160) of matched with the positioning wheel (422) and in an arc shape, and the positioning wheel (422) abuts against the positioning surface (160) to push the valve seat (16).
3. ball valve with floating adjustment of valve seat according to claim 1, wherein the movable support (42) has a plurality of positioning holes (6) arranged in sequence towards end of the valve seat (16) for mounting the positioning wheel (422), the positioning wheel (422) has a positioning insertion rod (4220) fixed at its center for inserting into the corresponding positioning hole (6) and forming a damping fit with the inner wall of the positioning hole (6).
4. The ball valve with the valve seat capable of floating and adjusting according to claim 1, wherein the movable support (42) is provided with a groove (7) for the driving spring (43) to extend into, the end of the driving spring (43) is fixedly arranged on the shaping frame (41), and the end of the driving spring extends into the groove (7) and is fixed with the bottom end of the groove (7).
5. The ball valve with float adjustable valve seat as claimed in claim 1, wherein the position-limiting members include a position-limiting member (81) and a second position-limiting member (82), the position-limiting member (81) is located at the side of the movable support (42) along the direction of pushing against the valve seat (16), the second position-limiting member (82) is located at the other side of the movable support (42) relative to the position-limiting member (81), and the position-limiting member (81) and the second position-limiting member (82) are respectively and fixedly provided with a connecting rod fixedly connected with the fixed frame (41) to fix the position of the ball valve.
6. The ball valve with valve seat capable of floating adjustment according to claim 1, wherein the setting frame (41) has fixed lubricant injector, the lubricant injector including being the circular shape fixed area (91) and surrounding the hose (92) in fixed area (91), fixed area (91) and setting frame (41) fixed connection, hose (92) have stretch out in the hose import (921) of setting frame (41) and apron (5) and stretch into the hose export (922) to revolving axle (421), apron (5) be equipped with the passageway that supplies hose import (921) to place, the passageway insert and be equipped with rubber buffer (93) with hose import (921) confined.