CN216201057U

CN216201057U - Valve rod rotation-proof structure of stop valve

Info

Publication number: CN216201057U
Application number: CN202122762870.0U
Authority: CN
Inventors: 朱华峰; 陈希; 陈思; 徐进杰; 朱金娟; 夏小涵
Original assignee: Zhejiang Ruitong Valve Co ltd
Current assignee: Zhejiang Ruitong Valve Co ltd
Priority date: 2021-11-12
Filing date: 2021-11-12
Publication date: 2022-04-05
Anticipated expiration: 2031-11-12

Abstract

The utility model discloses a valve rod anti-rotation structure of a stop valve, belonging to the field of stop valves, comprising a valve rod sleeve, wherein the top end of the valve rod sleeve is fixedly provided with a positioning shaft, the periphery of the bottom of the positioning shaft is fixedly provided with a fixing part, the right lower side of the positioning shaft is connected with an occluding part, the right upper end of the occluding part is fixedly provided with a positioning rod, the top end of the positioning rod is fixedly provided with an installation shaft, the top end of the installation shaft is fixedly provided with a limit shaft, the inside of the limit shaft is connected with a rotating shaft, the inside of the rotating shaft is connected with a stop valve rod, the top end of the stop valve rod is fixedly provided with a rotating handle, the inside of the positioning shaft is fixedly provided with an electric telescopic rod, and the clamping and the separation of the fixing part and the occluding part are controlled through the extension and retraction of the electric telescopic rod, and under the limiting displacement of pivot, can effectually play fixed stop valve rod, can effectually prevent that the stop valve rod from taking place to rotate.

Description

Valve rod rotation-proof structure of stop valve

Technical Field

The utility model relates to the field of stop valves, in particular to a valve rod anti-rotation structure of a stop valve.

Background

The shut-off valve is also called a shut-off valve, and belongs to a forced sealing type valve, so when the valve is closed, pressure must be applied to the valve clack to force the sealing surface not to leak. When a medium enters the valve from the lower part of the valve clack, the resistance to be overcome by the operating force is the friction force between the valve rod and the packing and the thrust generated by the pressure of the medium, and the force for closing the valve is larger than the force for opening the valve, so the diameter of the valve rod is larger, otherwise the failure of the valve rod bending can occur;

however, when the valve rod of the existing stop valve is rotated, the valve rod needs to be positioned and fixed to rotate, the valve rod of the stop valve is fastened on a valve body sleeve of the stop valve through the manual pressing effect, and the connection is unstable.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved

Aiming at the problems in the prior art, the utility model aims to provide a valve rod anti-rotation structure of a stop valve, which controls the clamping and the separation of a fixing piece and an occlusion piece through the extension and the retraction of an electric telescopic rod, can effectively fix the valve rod of the stop valve under the limiting action of a rotating shaft, and can effectively prevent the valve rod of the stop valve from rotating.

2. Technical scheme

In order to solve the above problems, the present invention adopts the following technical solutions.

The utility model provides a valve rod anti-rotation structure of stop valve, includes the valve rod sleeve, the telescopic top fixed mounting of valve rod has the location axle, the peripheral fixed mounting in bottom of location axle has the mounting, the right downside of location axle is connected with the interlock piece, the upper right end fixed mounting of interlock piece has the locating lever, the top fixed mounting of locating lever has the installation axle, the top fixed mounting of installation axle has spacing axle, the internal connection of spacing axle has the pivot, the internal connection of pivot has the stop valve rod, the top fixed mounting of stop valve rod has the turning handle, the inside fixed mounting of location axle has electric telescopic handle, electric telescopic handle's output is connected with the adaptation piece, the upside of adaptation piece is connected with universal pearl, the top of universal pearl is connected with the installed part, the upside of installed part is connected with the spacing ring.

Further, the valve rod sleeve and the positioning shaft are both of a hollow structure, the valve rod sleeve and the positioning shaft are connected in a welding mode, and the fixing pieces are fixedly mounted on the outer side of the lower surface of the positioning shaft at equal angles, so that the valve rod sleeve and the positioning shaft are conveniently and stably connected.

Furthermore, the fixing piece is connected with the occlusion piece in a clamping mode, the occlusion piece is fixedly welded with the positioning rod, and the positioning rod and the mounting shaft form an integrated structure, so that the fixing piece and the occlusion piece are conveniently and stably connected.

Further, the central axis of installation axle, spacing axle and pivot coincides each other, and the surface of pivot is concave-convex structure to pivot and stop valve rod fixed connection, the upper and lower slip of the spacing axle of being convenient for.

Further, the central axis of stop valve rod and the central axis of spacing axle coincide each other, and the pivot constitutes sliding construction in the inside of spacing axle, and the rotation of spacing stop valve rod is made things convenient for in the spacing of pivot.

Further, the adaptation piece constitutes revolution mechanic through universal pearl and installed part, and the installed part constitutes revolution mechanic in the inside of spacing ring to spacing ring and installation axle fixed connection conveniently adapt to the rotation of installation axle.

3. Advantageous effects

Compared with the prior art, the utility model has the advantages that

(1) This scheme is through the electric telescopic handle's that sets up flexible, the block of control mounting and interlock piece with break away from to under the limiting displacement of pivot, can effectually play fixed stop valve rod, can effectually prevent that the stop valve rod from taking place to rotate.

(2) The valve rod sleeve and the positioning shaft are both of a hollow structure, the connecting mode of the valve rod sleeve and the positioning shaft is welding, and the fixing pieces are fixedly mounted on the outer side of the lower surface of the positioning shaft at equal angles, so that the valve rod sleeve and the positioning shaft are conveniently and stably connected.

(3) The fixing piece is connected with the occlusion piece in a clamping mode, the occlusion piece is fixedly welded with the positioning rod, and the positioning rod and the mounting shaft form an integrated structure, so that the fixing piece and the occlusion piece are conveniently and stably connected.

(4) The central axis of installation axle, spacing axle and pivot coincides each other, and the outward appearance of pivot is concavo-convex structure to pivot and stop valve rod fixed connection, the upper and lower slip of the spacing axle of being convenient for.

(5) The central axis of stop valve rod and the central axis of spacing axle coincide each other, and the pivot constitutes sliding structure in the inside of spacing axle, and the rotation of convenient spacing stop valve rod is spacing to the pivot.

(6) The adaptation piece constitutes revolution mechanic through universal pearl and installed part, and the installed part constitutes revolution mechanic in the inside of spacing ring to spacing ring and installation axle fixed connection conveniently adapt to the rotation of installation axle.

Drawings

FIG. 1 is a schematic view of the overall structure of a valve stem anti-rotation structure of the present invention;

FIG. 2 is a schematic bottom view of the valve stem anti-rotation structure of the present invention;

FIG. 3 is a schematic front view of the anti-rotation structure of the valve stem according to the present invention;

FIG. 4 is a schematic bottom view of the mounting member and the stop collar of the present invention;

fig. 5 is a front view of the whole structure of the connection between the mounting part and the limiting ring.

The reference numbers in the figures illustrate:

1. a valve stem sleeve; 2. positioning the shaft; 3. a fixing member; 4. an engaging member; 5. positioning a rod; 6. installing a shaft; 7. a limiting shaft; 8. a rotating shaft; 9. a stop valve stem; 10. a handle is rotated; 11. an electric telescopic rod; 12. an adapting member; 13. a universal bead; 14. a mounting member; 15. a limit ring.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1:

please refer to fig. 1-5, a valve rod rotation-proof structure of stop valve, including valve rod sleeve 1, the top fixed mounting of valve rod sleeve 1 has location axle 2, the peripheral fixed mounting in bottom of location axle 2 has mounting 3, the right downside of location axle 2 is connected with occluding piece 4, the upper right end fixed mounting of occluding piece 4 has locating lever 5, the top fixed mounting of locating lever 5 has installation axle 6, the top fixed mounting of installation axle 6 has spacing axle 7, the internal connection of spacing axle 7 has pivot 8, the internal connection of pivot 8 has stop valve rod 9, the top fixed mounting of stop valve rod 9 has turning handle 10, the internal fixed mounting of location axle 2 has electric telescopic handle 11, the output of electric telescopic handle 11 is connected with adaptation piece 12, the upside of adaptation piece 12 is connected with universal pearl 13, the top of universal pearl 13 is connected with installed part 14, the upside of installed part 14 is connected with spacing ring 15.

Referring to fig. 1-2, the valve stem sleeve 1 and the positioning shaft 2 are both hollow, the valve stem sleeve 1 and the positioning shaft 2 are connected by welding, and the fixing member 3 is fixedly installed on the outer side of the lower surface of the positioning shaft 2 at equal angles, so as to facilitate stable connection between the valve stem sleeve 1 and the positioning shaft 2. Fixing piece 3 is connected with interlock piece 4 block, and interlock piece 4 and locating lever 5 welded fastening to locating lever 5 constitutes integrated structure with installation axle 6, is convenient for fixing piece 3 and interlock piece 4 stable connection.

Referring to fig. 2-3, the central axes of the mounting shaft 6, the limiting shaft 7 and the rotating shaft 8 are coincident with each other, the outer surface of the rotating shaft 8 is a concave-convex structure, and the rotating shaft 8 is fixedly connected with the stop valve rod 9, so that the limiting shaft 7 can slide up and down conveniently. The central axis of stop valve rod 9 and the central axis of spacing axle 7 coincide each other, and pivot 8 constitutes sliding structure in the inside of spacing axle 7, and the rotation of spacing stop valve rod 9 is made things convenient for in the spacing of pivot 8.

Referring to fig. 4-5, the adapting member 12 and the mounting member 14 form a rotating structure through the universal ball 13, the mounting member 14 forms a rotating structure inside the limiting ring 15, and the limiting ring 15 is fixedly connected with the mounting shaft 6, so as to facilitate adapting to the rotation of the mounting shaft 6.

Referring to fig. 1-2, in use, a user first positions and installs the stop valve at a suitable position, and under the action of the electric telescopic rod 11, the installation shaft 6 is separated from the stable connection of the fixing member 3 through the occluding member 4, after the separation, the rotating handle 10 is rotated by hand, the rotation of the rotating handle 10 rotates the stop valve rod 9 fixed with the rotating handle, the rotating shaft 8 is fixedly installed outside the middle part of the stop valve rod 9, when the rotating shaft 8 rotates to a suitable position, the fixing member 3 can be effectively clamped and connected with the occluding member 4 through the reverse extension and retraction of the electric telescopic rod 11, and under the action of the rotating shaft 8, the rotation on the horizontal plane can be effectively performed, the output end of the electric telescopic rod 11 is connected with the adapting member 12, the inside of the top end of the adapting member 12 is rotatably connected with the universal ball 13, and along with the relative rotation of the installation member 14 inside the limiting ring 15, can effectually play the rotation that adapts to installation axle 6, a series of operations of the valve rod rotation-proof structure of this stop valve is just accomplished to the above, and through the electric telescopic handle's that sets up flexible, the block of control mounting and interlock piece with break away from to under the limiting displacement of pivot, can effectually play fixed stop valve rod, can effectually prevent that the stop valve rod from taking place to rotate.

The above are only preferred embodiments of the present invention; the scope of the utility model is not limited thereto. Any person skilled in the art should be able to cover the technical scope of the present invention by equivalent or modified solutions and modifications within the technical scope of the present invention.

Claims

1. The utility model provides a valve rod rotation-proof structure of stop valve, includes valve rod sleeve (1), its characterized in that: the top end of the valve rod sleeve (1) is fixedly provided with a positioning shaft (2), the periphery of the bottom of the positioning shaft (2) is fixedly provided with a fixing part (3), the lower right side of the positioning shaft (2) is connected with an occlusion part (4), the upper right end of the occlusion part (4) is fixedly provided with a positioning rod (5), the top end of the positioning rod (5) is fixedly provided with an installation shaft (6), the top end of the installation shaft (6) is fixedly provided with a limit shaft (7), the inside of the limit shaft (7) is connected with a rotating shaft (8), the inside of the rotating shaft (8) is connected with a stop valve rod (9), the top end of the stop valve rod (9) is fixedly provided with a rotating handle (10), the inside of the positioning shaft (2) is fixedly provided with an electric telescopic rod (11), the output end of the electric telescopic rod (11) is connected with an adaptation part (12), the upside of the adaptation part (12) is connected with a universal ball (13), the top of universal pearl (13) is connected with installed part (14), the upside of installed part (14) is connected with spacing ring (15).

2. The anti-rotation structure of a stem of a stop valve according to claim 1, wherein: valve rod sleeve (1) all is hollow column structure with the inside of location axle (2), and the connected mode of valve rod sleeve (1) and location axle (2) is the welding to the equal angle fixed mounting in the lower surface outside of location axle (2) has mounting (3).

3. The anti-rotation structure of a stem of a stop valve according to claim 1, wherein: the fixing piece (3) is connected with the occlusion piece (4) in a clamping mode, the occlusion piece (4) is fixedly welded with the positioning rod (5), and the positioning rod (5) and the mounting shaft (6) form an integrated structure.

4. The anti-rotation structure of a stem of a stop valve according to claim 1, wherein: the central axis of installation axle (6), spacing axle (7) and pivot (8) coincide each other, and the surface of pivot (8) is concave-convex structure to pivot (8) and stop valve rod (9) fixed connection.

5. The anti-rotation structure of a stem of a stop valve according to claim 1, wherein: the central axis of the stop valve rod (9) and the central axis of the limiting shaft (7) are overlapped, and the rotating shaft (8) forms a sliding structure in the limiting shaft (7).

6. The anti-rotation structure of a stem of a stop valve according to claim 1, wherein: adaptation piece (12) constitute revolution mechanic through universal pearl (13) and installed part (14), and installed part (14) constitute revolution mechanic in the inside of spacing ring (15) to spacing ring (15) and installation axle (6) fixed connection.