CN112664658A

CN112664658A - Low temperature stop valve with high sealing performance

Info

Publication number: CN112664658A
Application number: CN202011561408.8A
Authority: CN
Inventors: 徐利论
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-12-25
Filing date: 2020-12-25
Publication date: 2021-04-16

Abstract

The invention relates to the technical field of valve sealing, in particular to a low-temperature stop valve with high sealing performance, which comprises a valve body, wherein the valve body comprises a valve frame, a sealing mechanism is arranged on the inner side of the valve frame, the sealing mechanism comprises a sliding rod, the inner side of the valve frame is connected with the sliding rod in a sliding manner, the bottom end of the sliding rod is movably connected with a sliding plate, the bottom end of the sliding rod is fixedly connected with a rotating tooth, the bottom end of the sliding rod is fixedly connected with a fixed cylinder, the inner side of the fixed cylinder is movably connected with a gear, the inner side of the valve frame is fixedly connected with a limiting plate, the bottom end of the gear is fixedly connected with a sliding disc. The invention conveniently completes the quick connection of the sealing gasket and the pipeline in the valve, improves the sealing effect of the valve, ensures that the whole sealing gasket is fixedly connected with the channel under the action of the force of the abutting ring, improves the sealing effect of the valve and ensures that the valve has high-efficiency sealing performance.

Description

Low temperature stop valve with high sealing performance

Technical Field

The invention relates to the technical field of valve sealing, in particular to a low-temperature stop valve with high sealing performance.

The low-temperature stop valve is a valve with a closing member moving along the central line of a valve seat, according to the moving form of a valve clack, the change of a valve seat through opening is in direct proportion to the stroke of the valve clack, and the valve rod of the valve is relatively short in opening or closing stroke and has a very reliable cutting function.

201811316082.5 discloses a high leakproofness ability stop valve, including the casing, the both ends of casing all are equipped with the pipeline, the one end of pipeline is equipped with fixed part, the top and the bottom of casing all are equipped with first opening to the top and the bottom of casing are equipped with upper cover plate and lower apron respectively, upper cover plate and lower apron cover respectively on first opening, the top symmetry of apron is fixed with the fixed column down, the upper end of fixed column is connected with the frame, the frame internal symmetry is fixed with the baffle, one side of fixed plate is equipped with the rubber buffer, the rubber buffer is located the one end of pipeline respectively, the one end of threaded rod runs through the baffle and extends away to be connected with link gear. The device is reasonable in structure and convenient to operate, achieves the sealing purpose through the rubber plug, and improves the sealing performance of the valve due to the adoption of the two sealing plugs, so that the valve has high sealing performance, and liquid leakage is prevented.

When using equipment, drive the threaded rod through the action bars and rotate, rotation through the threaded rod, thereby make the movable block remove, through the removal of movable block, thereby make the push rod promote the fixed plate and remove, thereby make the rubber buffer of fixed plate one side support the one end at the pipeline, and then reach the shutoff, sealed purpose, connect through two sealing plugs, the leakproofness of valve has been improved, this kind of structure does not have fundamentally to solve the shortcoming of sealed leakproofness, can influence the sealed effect of sealed pad in long-time use, easily cause the joint gap between sealed outside surface and the object, influence sealed effect.

In the prior art, the sealing plug is used for connecting and sealing the valve, after long-time use and abrasion, a connecting gap between the sealing plug and an object is easily caused, the two sealing plugs are connected, the problem that the sealing gasket has the connecting gap in long-time use and influences the sealing effect of equipment is not fundamentally solved, and therefore a low-temperature stop valve with high sealing performance is urgently needed to be designed to solve the problem.

Disclosure of Invention

The invention aims to provide a low-temperature stop valve with high sealing performance, which solves the problem that the sealing effect of equipment is influenced because a sealing gasket has a connecting gap when used for a long time.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a low temperature stop valve with high sealing performance, includes the valve body, the valve body includes the valve frame, the inboard of valve frame is provided with sealing mechanism, sealing mechanism includes the slide bar, the inboard sliding connection of valve frame has the slide bar, the bottom swing joint of slide bar has the slide, the bottom fixedly connected with of slide bar changes the tooth, the fixed section of thick bamboo of bottom fixedly connected with of slide bar, the inboard swing joint of fixed section of thick bamboo has the gear, the inboard fixedly connected with limiting plate of valve frame, the bottom fixedly connected with sliding tray of gear, the surface of sliding tray is supported and is closed and be connected with the spacing ring, the bottom fixed surface of sliding tray is connected with supporting spring.

Preferably, the slide bar is the inboard of shaft-like connection at the valve frame, the slide is the bottom of disc connection at the slide bar, slide bar and slide rotate through the pivot and connect, change tooth and slide and rotate and connect.

Preferably, the gear and the rotation gear are connected in a rotating mode, the gear is connected with the sliding plate in a butting mode on the surface, the fixed cylinder is connected with the gear in a rotating mode, and the limiting plate is connected with the sliding plate in a butting mode on the surface in a circular ring mode.

Preferably, the sliding disc is connected to the surface of the gear in a disc shape, the sliding disc is connected with the limiting ring in an abutting mode, and the support springs are connected to the bottom end surface of the sliding disc in two groups.

Preferably, the surface of gear is provided with fastening device, fastening device includes the swivel, the fixed surface of gear is connected with the swivel, the sliding surface of gear is connected with supports the groove, the fixed surface who supports the groove is connected with the support ring, the surface swing joint of support ring has the swivel, the inboard of support ring has cup jointed to the ring, the bottom swing joint who supports the groove has sealed the pad, the bottom fixedly connected with protruding ball that seals up, the sliding surface of swivel has the ring gear, the inboard fixedly connected with extension spring of ring gear, the spout has been seted up on the inboard surface of swivel.

Preferably, the rotating ring is rotatably connected with the rotating groove, the rotating groove is fixedly connected with the abutting rings, the rotating grooves are connected to the surface of the rotating ring in two groups, and the abutting rings are fixedly connected to the surface of the supporting groove in two groups.

Preferably, the sealing gasket is connected to the bottom of the supporting groove in a plate shape, the supporting groove is rotatably connected with the sealing gasket through a rotating shaft, the convex balls are made of rubber materials and are connected to the surface of the bottom of the sealing gasket in a spherical shape.

Preferably, the toothed ring is fixedly connected with the rotary groove through a telescopic spring, two ends of the telescopic spring are fixedly connected to the surfaces of the toothed ring and the rotary groove, the toothed ring is in sliding connection with the sliding groove, and the toothed ring is connected to the outer side surface of the rotary groove in a circular ring shape.

Preferably, the surface of the slide bar is provided with a limiting mechanism, the limiting mechanism comprises a limiting cylinder, the surface of the slide bar is sleeved with the limiting cylinder, the surface of the limiting cylinder is provided with a limiting groove, the surface of the slide bar is fixedly connected with a limiting rod, and the surface of the limiting cylinder is provided with a through groove.

Preferably, the limiting cylinder is cylindrical, the limiting cylinder is connected with the sliding rod in a sliding mode, the limiting groove is in a circular groove shape and is connected to the inner side surface of the limiting cylinder, and the through grooves are connected to the surface of the limiting cylinder in two groups.

Compared with the prior art, the invention has the beneficial effects that:

1. this low temperature stop valve with high leakproofness ability is at the in-process that uses, through the connection of slide bar and slide, under the effect of a spacing section of thick bamboo, be convenient for carry out joint support to the slide bar in the valve frame, make things convenient for the slip of slide bar, under the effect of slide bar, make sealed pad connection in equipment, the completion is sealed to the connection of valve, under the effect of pompon, it is fixed to make things convenient for the sealed connection of sealing up the pipeline in equipment, under the connection of gear and limiting plate, make the gear and the hookup location of commentaries on classics tooth fixed, under the rotation of commentaries on classics tooth, make the gear revolve, accomplish the pipeline high-speed joint in sealed pad and the valve, improve the sealed effect of valve.

2. This low temperature stop valve with high leakproofness ability has realized when fixed to valve seal's high-speed joint, through the gear with support the telescopic connection in groove, make swivel and ring gear connection meshing, under the connection of expanding spring, be convenient for finely tune the connection size of ring gear, make things convenient for the meshing of ring gear and swivel, under the rotation effect of swivel groove, make things convenient for the connection of ring gear on sealed, under the effect of ring gear, make the surface in the sealed outside of filling up and the connection between the valve passageway fixed, under the effect of ring gear, make sealed whole and the channel connection of pad fixed, improve the sealed effect of valve, make the valve have efficient sealing performance.

Drawings

FIG. 1 is a schematic view in partial cross-section of the invention in elevation view;

FIG. 2 is a schematic view, partially in section, of the structure of the present invention;

FIG. 3 is an enlarged view of the structure of FIG. 2 at A according to the present invention;

FIG. 4 is an enlarged view of the structure of FIG. 2 at B according to the present invention;

FIG. 5 is a schematic sectional top view of the swivel and swivel joint assembly of FIG. 2 according to the present invention;

FIG. 6 is a schematic top view of the connection structure of the limiting rod and the limiting groove in FIG. 1 according to the present invention.

In the figure: 1. a valve body; 11. a valve frame; 2. a sealing mechanism; 21. a slide bar; 22. a slide plate; 23. rotating the teeth; 24. a gear; 25. a fixed cylinder; 26. a limiting plate; 27. a slide plate; 28. a limiting ring; 29. a support spring; 3. a fastening mechanism; 31. rotating the ring; 32. rotating the groove; 33. a support ring; 34. a support ring; 35. a support groove; 36. a gasket; 37. a convex ball; 38. a toothed ring; 39. a tension spring; 310. a chute; 4. a limiting mechanism; 41. a limiting cylinder; 42. a limiting groove; 43. a limiting rod; 44. a through groove.

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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-6, an embodiment of the present invention is shown:

a low-temperature stop valve with high sealing performance comprises a valve body 1, wherein the valve body 1 comprises a valve frame 11, a sealing mechanism 2 is arranged on the inner side of the valve frame 11, the sealing mechanism 2 comprises a sliding rod 21, the inner side of the valve frame 11 is connected with the sliding rod 21 in a sliding manner, the bottom end of the sliding rod 21 is movably connected with a sliding plate 22, the bottom end of the sliding rod 21 is fixedly connected with a rotary tooth 23, the bottom end of the sliding rod 21 is fixedly connected with a fixed cylinder 25, the inner side of the fixed cylinder 25 is movably connected with a gear 24, the inner side of the valve frame 11 is fixedly connected with a limit plate 26, the bottom end of the gear 24 is fixedly connected with a sliding disc 27, the surface of the sliding disc 27 is connected with a limit ring 28 in an abutting manner, the bottom end surface of the sliding disc 27 is fixedly connected with a support spring 29, under the action of the sliding rod 21 and the sliding plate 22, the sliding, it is convenient to define the sliding position of the slide rod 21 within the valve frame 11.

Further, the sliding rod 21 is connected to the inner side of the valve frame 11 in a rod shape, the sliding plate 22 is connected to the bottom end of the sliding rod 21 in a disc shape, the sliding rod 21 is rotatably connected with the sliding plate 22 through a rotating shaft, the rotating teeth 23 are rotatably connected with the sliding plate 22, and through the fixed connection between the rotating teeth 23 and the sliding rod 21, under the rotating connection between the sliding plate 22 and the sliding rod 21, the sliding rod 21 drives the rotating teeth 23 to rotate in the sliding plate 22, and through the rotation of the rotating teeth 23, the gear 24 rotates at the bottom end of the sliding plate 22.

Further, the gear 24 is rotatably connected with the rotary teeth 23, the gear 24 is connected with the surface of the sliding plate 22 in an abutting mode, the fixed cylinder 25 is rotatably connected with the gear 24, the limiting plate 26 is in an annular shape and is connected with the surface of the sliding plate 22 in an abutting mode, the position of the gear 24 on the sliding plate 22 is fixed under the connecting action of the fixed cylinder 25 and the sliding plate 22 through the connection of the fixed cylinder 25 and the gear 24, and the gear 24 is convenient to rotate under the rotating action of the sliding rod 21.

Further, the sliding disc 27 is connected on the surface of gear 24 in a disc shape, the sliding disc 27 is connected with a limiting ring 28 in a butting mode, a supporting spring 29 is connected to the bottom end surface of the sliding disc 27 in two groups, the sliding distance of the sliding plate 22 in the valve frame 11 is convenient to fix through the connection of the limiting plate 26 in the valve frame 11, the valve frame 11 is convenient to be connected and sealed quickly, the sliding position of the gear 24 is limited under the action of the sliding disc 27 and the limiting ring 28, and the connecting length of the gear 24 is convenient to change through the connecting action of the supporting spring 29.

Further, the surface of the gear 24 is provided with the fastening mechanism 3, the fastening mechanism 3 includes a rotating ring 31, the surface of the gear 24 is fixedly connected with the rotating ring 31, the surface of the gear 24 is slidably connected with a supporting groove 35, the surface of the supporting groove 35 is fixedly connected with a supporting ring 33, the surface of the supporting ring 33 is movably connected with the rotating groove 32, the inner side of the supporting ring 33 is sleeved with a retaining ring 34, the bottom end of the supporting groove 35 is movably connected with a sealing gasket 36, the bottom end of the sealing gasket 36 is fixedly connected with a convex ball 37, the surface of the rotating groove 32 is slidably connected with a toothed ring 38, the inner side of the toothed ring 38 is fixedly connected with a telescopic spring 39, the inner side surface of the rotating groove 32 is provided with a sliding groove 310, and by the connection of the rotating ring 31 and the gear 24, the rotating ring 31 drives the rotating groove 32 to rotate, so that the retaining ring 34 is telescopic.

Furthermore, the rotating ring 31 is rotatably connected with the rotating groove 32, the rotating groove 32 is fixedly connected with the supporting ring 34, the rotating groove 32 is formed in two groups and is connected to the surface of the rotating ring 31, the supporting ring 34 is formed in two groups and is fixedly connected to the surface of the supporting groove 35, the rotating groove 32 is conveniently supported in position under the action of the supporting ring 33 through the connection of the supporting ring 33 and the supporting groove 35, and the supporting ring 34 is conveniently connected and stretched in the supporting ring 33 through the rotation of the rotating groove 32 and the rotating groove 31 and under the action of the rotating groove 32.

Further, sealed 36 is the platelike bottom of connecting at support groove 35, and support groove 35 and sealed 36 of filling up rotate through the pivot to be connected, and protruding ball 37 is the rubber material, and protruding ball 37 is the sphere and connects in sealed 36 bottom surface, through sealed 36 and protruding ball 37's connection, is convenient for connect sealedly to the passageway in the valve frame 11, and under the effect that supports ring 34, to filling up 36 outside surfaces and closing fixedly, improves sealed 36's sealing performance.

Furthermore, the toothed ring 38 is fixedly connected with the rotary groove 32 through the telescopic spring 39, two ends of the telescopic spring 39 are fixedly connected to the surfaces of the toothed ring 38 and the rotary groove 32, the toothed ring 38 is connected with the sliding groove 310 in a sliding manner, the toothed ring 38 is connected to the outer side surface of the rotary groove 32 in a circular ring shape, and the toothed ring 38 drives the rotary groove 32 to rotate under the connection of the toothed ring 38 and the rotary groove 31 through the connection of the toothed ring 38 and the rotary groove 32, so that the toothed ring 38 can be conveniently supported by stretching and retracting of the toothed ring 38 under the action of the sliding groove 310.

Further, the surface of the slide bar 21 is provided with a limiting mechanism 4, the limiting mechanism 4 comprises a limiting cylinder 41, the surface of the slide bar 21 is sleeved with the limiting cylinder 41, the surface of the limiting cylinder 41 is provided with a limiting groove 42, the surface of the slide bar 21 is fixedly connected with a limiting rod 43, the surface of the limiting cylinder 41 is provided with a through groove 44, through the connection of the limiting rod 43 and the slide bar 21, under the fixed connection of the limiting cylinder 41 and the valve frame 11, the limiting cylinder 41 controls the sliding distance of the slide bar 21 in the valve frame 11.

Furthermore, a limiting cylinder 41 is cylindrical, the limiting cylinder 41 is connected with the sliding rod 21 in a sliding manner, a limiting groove 42 is connected to the inner side surface of the limiting cylinder 41 in a circular groove manner, the through grooves 44 are connected to the surface of the limiting cylinder 41 in two groups, and the limiting rod 43 is connected with the through grooves 44 in a sliding manner, so that the limiting rod 43 can conveniently enter the surface of the limiting groove 42, the position of the sliding rod 21 in the valve frame 11 is fixed under the action of the limiting groove 42, and further the connecting position of the gear 24 in the supporting groove 35 is fixed.

The working principle is as follows: through the connection of the valve frame 11 and the slide rod 21, under the sliding of the slide rod 21, the slide plate 22 is convenient to stretch out and draw back in the valve frame 11, the action of the limit plate 26 is small, the sliding distance of the slide plate 22 in the valve frame 11 is limited, through the rotating connection of the rotating teeth 23 and the gear 24, under the action of the fixed cylinder 25, the connecting position of the gear 24 and the rotating teeth 23 is fixed, the rotating teeth 23 are convenient to drive the gear 24 to rotate, through the connection of the gear 24 and the slide disc 27, under the action of the limit ring 28, the sliding distance of the slide disc 27 is fixed, under the action of the support spring 29, the gear 24 is convenient to stretch out and draw back, through the connection of the limit cylinder 41 and the slide rod 21, under the action of the limit groove 42 and the limit rod 43, through the sliding connection of the limit rod 43 and the through groove 44, the limit rod 43 is convenient to fix the connecting position of the slide rod 21 in the limit cylinder 41.

Through the connection of swivel 31 and gear 24, under the rotation of gear 24, make swivel 31 drive ring gear 38 and rotate, and then make the rotary trough 32 rotate, under the effect of expanding spring 39 and spout 310, be convenient for ring gear 38 to the flexible on rotary trough 32, make things convenient for the meshing of ring gear 38 and swivel 31 to be connected, through the connection of support ring 33 and support groove 35, under the effect of support ring 33, make the position of support ring 34 in rotary trough 32 fixed, under the effect of support ring 34, be convenient for to carry out the butt joint fixed to sealed 36 outside periphery, make things convenient for the connection of sealed 36 to seal, under the effect of protruding ball 37, make things convenient for the connection seal between sealed 36 and the pipeline, through the connection effect of support ring 34, improve the sealing performance of sealed 36.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. A low temperature stop valve with high sealing performance, includes valve body (1), its characterized in that: valve body (1) includes valve frame (11), the inboard of valve frame (11) is provided with sealing mechanism (2), sealing mechanism (2) are including slide bar (21), the inboard sliding connection of valve frame (11) has slide bar (21), the bottom swing joint of slide bar (21) has slide (22), the bottom fixedly connected with of slide bar (21) changes tooth (23), the bottom fixedly connected with solid fixed cylinder (25) of slide bar (21), the inboard swing joint of solid fixed cylinder (25) has gear (24), the inboard fixedly connected with limiting plate (26) of valve frame (11), the bottom fixedly connected with sliding tray (27) of gear (24), the surface of sliding tray (27) supports to close and is connected with spacing ring (28), the bottom fixed surface of sliding tray (27) is connected with supporting spring (29).

2. A cryogenic stop valve with high sealing capability according to claim 1, wherein: slide bar (21) are the inboard of shaft-like connection at valve frame (11), slide plate (22) are the bottom of disc connection at slide bar (21), slide bar (21) and slide plate (22) rotate through the pivot and connect, it rotates with slide plate (22) to rotate tooth (23) and connects.

3. A cryogenic stop valve with high sealing capability according to claim 1, wherein: gear (24) and commentaries on classics tooth (23) rotate to be connected, the surperficial butt of gear (24) and slide (22) closes to be connected, gu fixed cylinder (25) rotate with gear (24) to be connected, limiting plate (26) are ring shape and slide (22) surface butt and close to be connected.

4. A cryogenic stop valve with high sealing capability according to claim 1, wherein: the sliding disc (27) is connected to the surface of the gear (24) in a disc shape, the sliding disc (27) is connected with the limiting ring (28) in a butting mode, and the supporting springs (29) are connected to the surface of the bottom end of the sliding disc (27) in two groups.

5. A cryogenic stop valve with high sealing capability according to claim 1, wherein: the surface of gear (24) is provided with fastening device (3), fastening device (3) include swivel (31), the fixed surface of gear (24) is connected with swivel (31), the sliding surface of gear (24) is connected with supporting groove (35), the fixed surface of supporting groove (35) is connected with supporting ring (33), the movable surface of supporting ring (33) is connected with swivel (32), support ring (34) has been cup jointed to the inboard of supporting ring (33), the bottom swing joint of supporting groove (35) has sealed pad (36), the bottom fixedly connected with protruding ball (37) of sealed pad (36), the sliding surface of swivel (32) is connected with ring gear (38), the inboard fixedly connected with extension spring (39) of ring gear (38), spout (310) has been seted up on the inboard surface of swivel (32).

6. The cryogenic stop valve with high sealing performance according to claim 5, wherein: the rotary ring (31) is rotatably connected with the rotary groove (32), the rotary groove (32) is fixedly connected with the abutting ring (34), the rotary grooves (32) are connected to the surface of the rotary ring (31) in two groups, and the abutting ring (34) is fixedly connected to the surface of the supporting groove (35) in two groups.

7. The cryogenic stop valve with high sealing performance according to claim 5, wherein: sealing pad (36) are the platelike and connect in the bottom that supports groove (35), support groove (35) and sealed pad (36) and rotate through the pivot and connect, protruding ball (37) are the rubber material, protruding ball (37) are the sphere and connect in the bottom surface that seals up pad (36).

8. The cryogenic stop valve with high sealing performance according to claim 5, wherein: the gear ring (38) is fixedly connected with the rotary groove (32) through a telescopic spring (39), two ends of the telescopic spring (39) are fixedly connected to the surfaces of the gear ring (38) and the rotary groove (32), the gear ring (38) is in sliding connection with the sliding groove (310), and the gear ring (38) is connected to the outer side surface of the rotary groove (32) in a circular ring shape.

9. A cryogenic stop valve with high sealing capability according to claim 1, wherein: the surface of slide bar (21) is provided with stop gear (4), stop gear (4) are including a spacing section of thick bamboo (41), a spacing section of thick bamboo (41) has been cup jointed on the surface of slide bar (21), spacing groove (42) have been seted up on the surface of a spacing section of thick bamboo (41), the fixed surface of slide bar (21) is connected with gag lever post (43), logical groove (44) have been seted up on the surface of a spacing section of thick bamboo (41).

10. A cryogenic stop valve with high sealing capability according to claim 9, wherein: the limiting cylinder (41) is cylindrical, the limiting cylinder (41) is connected with the sliding rod (21) in a sliding mode, the limiting groove (42) is connected to the inner side surface of the limiting cylinder (41) in a circular groove mode, and the through grooves (44) are connected to the surface of the limiting cylinder (41) in two groups.