CN214946422U

CN214946422U - One-way self-sealing valve

Info

Publication number: CN214946422U
Application number: CN202120865964.8U
Authority: CN
Inventors: 韩勇; 陈剑
Original assignee: Jiangsu New Technology Development Co ltd
Current assignee: Jiangsu New Technology Development Co ltd
Priority date: 2021-04-26
Filing date: 2021-04-26
Publication date: 2021-11-30
Anticipated expiration: 2031-04-26

Abstract

The utility model relates to a sealing valve technical field specifically is an one-way self sealss valve, which comprises a valve body, the welding of valve body surface has the link, the link deviates from valve body one side surface swing joint and has the cylinder block, the surface of cylinder block passes through bolt fixedly connected with cylinder, the output of cylinder closes soon and is fixed with the connecting piece, and the one end swing joint that the connecting piece deviates from the cylinder has the crank, the crank is kept away from the one end of connecting piece and is inserted and be fixed with the connecting axle, the connecting axle deviates from articulate one end through connection frame and rotates with the link to be connected, and the surface of connecting axle has cup jointed the lever, the one end swing joint that the connecting axle was kept away from to the lever has the connecting rod, spherical case has been cup jointed to the bottom of connecting rod. The utility model discloses have self sealss structure, the leakproofness is strong, and spherical case below pressure when big more, spherical case's sealed effect is better.

Description

One-way self-sealing valve

Technical Field

The utility model relates to a sealing valve technical field specifically is a one-way self sealss valve.

Background

The valve is a pipeline accessory used for opening and closing a pipeline, controlling the flow direction, adjusting and controlling parameters of a conveying medium, and can be divided into a shut-off valve, a check valve, an adjusting valve and the like according to functions of the valve, wherein the valve is a control part in a fluid conveying system, has the functions of stopping, adjusting, guiding, preventing backflow, stabilizing pressure, shunting or overflowing and relieving pressure and the like, is used for a valve of the fluid control system, and can be used for controlling the flow of various types of fluids such as air, water, steam, various corrosive media, slurry, oil products, liquid metal, radioactive media and the like.

When the valve in the prior art is used, leakage of a pipeline often occurs due to poor sealing performance of the valve, harm is caused, the current valve is usually inserted into a valve seat by using a movable spherical valve core, sealing of the valve is realized, the sealing effect of the sealing structure which can be played when the pressure in the pipeline is too high can be poor, self sealing cannot be performed, and therefore a one-way self-sealing valve needs to be designed to solve the problem urgently.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an one-way self sealss valve to solve the sealed effect that the seal structure that proposes can play when pipeline internal pressure is too high can the variation, and can't carry out the problem of self sealss in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a one-way self sealss valve, includes the valve body, the welding of valve body surface has the link, the link deviates from valve body one side surface swing joint has the cylinder block, the surface of cylinder block passes through bolt fixedly connected with cylinder, the output of cylinder closes soon and is fixed with the connecting piece, and the connecting piece deviates from the one end swing joint of cylinder has the crank, the crank is kept away from the one end of connecting piece and is inserted and be fixed with the connecting axle, the connecting axle deviates from articulate one end through the link and rotates with the link and be connected, and the surface of connecting axle has cup jointed the lever, the one end swing joint that the connecting axle was kept away from to the lever has the connecting rod, spherical case has been cup jointed to the bottom of connecting rod.

Preferably, a sealing ring is embedded in the lower surface of the valve body.

Preferably, both ends of connecting axle all are equipped with antifriction bearing, and antifriction bearing's surface cover is equipped with the bearing frame, the bearing frame passes through the outer fixed surface connection of bolt and link, and the connecting axle passes through antifriction bearing and is connected with the bearing frame rotation.

Preferably, a bayonet lock is inserted into the bottom of the connecting rod, and the bottom of the connecting rod is fixedly connected with the top of the spherical valve core through the bayonet lock.

Preferably, the spherical valve core consists of a hemispherical valve bowl and a cylindrical connecting pipe, the connecting pipe is welded at the center of a convex surface of the hemispherical valve bowl, the convex surface of the hemispherical valve bowl is abutted against the sealing ring, and the bottom end of the connecting rod is inserted into the connecting pipe and is fixed by inserting a clamping pin.

Preferably, the bearing seats are fixedly provided with adaptive bearing covers, the number of the bearing seats is two, and the left side and the right side of the connecting frame are respectively provided with one bearing cover.

Compared with the prior art, the beneficial effects of the utility model are that: this kind of one-way self sealss valve has from seal structure, and the leakproofness is strong, and when ball valve core below pressure was big more, ball valve core's sealed effect was better.

(1) The sealing mechanism is formed by the cylinder, the crank, the lever, the connecting rod and the spherical valve core together, the lever is driven by the cylinder to operate, the lever can be driven by the connecting rod to open and close the spherical valve core, the operation is convenient, the spherical valve core is linked by the lever, the lever can be pushed when the spherical valve core is under pressure, the spherical valve core can be under pressure to move up and down in the valve body, and self sealing is realized.

(2) Be bowl-shaped structural design through spherical case to it has the sealing washer to embed in the valve body bottom, when spherical case bottom received pressure, pressure can be full of spherical case inner chamber, and the sealing washer is lived in the tight laminating of top-moving spherical case, and it is big more to receive pressure, and sealed effect is better.

Drawings

Fig. 1 is a front view schematically illustrating the present invention;

fig. 2 is a schematic bottom view of the present invention;

FIG. 3 is a schematic cross-sectional side view of the structure at A-A of FIG. 1 according to the present invention;

FIG. 4 is a schematic cross-sectional front view of the structure at B-B in FIG. 2 according to the present invention;

fig. 5 is a schematic diagram of the closed state of the spherical valve element and the valve body in fig. 4 according to the present invention.

In the figure: 1. a valve body; 2. a connecting frame; 3. a cylinder block; 4. a cylinder; 5. a connecting member; 6. a crank; 7. a connecting shaft; 8. a lever; 9. a connecting rod; 10. a spherical valve core; 11. a seal ring; 12. a bearing seat; 13. and a bearing cover.

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 work belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides an embodiment: the utility model provides a one-way self sealss valve, includes valve body (1), valve body (1) skin weld has link (2), link (2) deviate from valve body (1) one side surface swing joint has cylinder block (3), the surface of cylinder block (3) passes through bolt fixedly connected with cylinder (4), and the bottom activity embedding of cylinder block (3) has cylinder round pin axle and assembles with link 2 through cylinder round pin axle, and the outer wall of cylinder round pin axle supports to lean on to be connected with circlip, and the not hard up condition appears easily in the assembly of cylinder block 3 on link 2, through circlip dress at the both ends of cylinder round pin axle, increases the compactness between cylinder block 3 and link 2, and the most important one point lies in the vibrations between buffer cylinder block 3 and link 2 simultaneously, increases stability.

The output end of the cylinder (4) is fixedly screwed with a connecting piece (5), one end of the connecting piece (5) departing from the cylinder (4) is movably connected with a crank (6), the bottom end of the connecting piece (5) is fixedly inserted with a crank pin shaft, the connecting piece (5) is movably connected with the crank (6) through the crank pin shaft, the crank (6) is convenient to disassemble, assemble and maintain, one end of the crank (6) far away from the connecting piece (5) is fixedly inserted with a connecting shaft (7), one end of the connecting shaft (7) departing from the crank (6) penetrates through the connecting frame (2) and is rotatably connected with the connecting frame (2), the outer surface of the connecting shaft (7) is sleeved with a lever (8), one end of the lever (8) far away from the connecting shaft (7) is movably connected with a connecting rod (9), the bottom of the connecting rod (9) is sleeved with a spherical valve core (10), and the crank (6) is driven to swing through the cylinder (4) to drive the connecting shaft (7) to rotate, the connecting shaft 7 drives the spherical valve core 10 to move up and down through the lever 8, and the opening and closing of the spherical valve core 10 and the valve body (1) are realized.

Further, as shown in fig. 4, a sealing ring (11) is embedded in the lower surface of the valve body (1), and the sealing ring 11 is of a rubber structure, so that the sealing property between the spherical valve core 10 and the valve body (1) is improved.

Furthermore, as shown in fig. 4, a bayonet lock is inserted into the bottom of the connecting rod (9), the bottom of the connecting rod (9) is fixedly connected with the top of the spherical valve core (10) through the bayonet lock, the spherical valve core (10) is composed of a hemispherical valve bowl and a cylindrical connecting pipe, the connecting pipe is welded at the center of a convex surface of the hemispherical valve bowl, the convex surface of the hemispherical valve bowl abuts against the sealing ring (11), the concave surface of the hemispherical valve bowl faces downwards and is more easily affected by pressure from the bottom of the valve body 1, so that the upper surface of the hemispherical valve bowl can tightly abut against the sealing ring 11, the sealing property between the hemispherical valve bowl and the valve body 1 is improved, the bottom end of the connecting rod (9) is inserted into the connecting pipe and is inserted and fixed through the bayonet lock, the bayonet lock can be taken down, and the connecting rod (9) and the spherical valve core (10) can be conveniently disassembled.

Further, as shown in fig. 3, both ends of connecting axle (7) all are equipped with antifriction bearing, and antifriction bearing's surface cover is equipped with bearing frame (12), the fixed surface of bearing frame (2) is connected through the bolt in bearing frame (12), and connecting axle (7) rotates through antifriction bearing and bearing frame (12) to be connected, and through bearing frame 12 and antifriction bearing cooperation, make better the rotating on connecting frame (2) of connecting axle 7, reduce friction.

Further, as shown in fig. 3, bearing frame (12) on fixed be equipped with bearing cap (13) of looks adaptation, avoid in the dust gets into bearing frame 12, the quantity of bearing frame (12) is two, respectively one in the left and right sides of link (2), big one little one in the left and right sides bearing frame 12, as shown in fig. 3, left side bearing frame 12 is greater than right side bearing frame 12, connecting axle (7) pass bearing cap (13) on left side bearing frame 12, straight-through oil cup is equipped with on bearing cap (13) surface on the right side bearing frame 12 for pour into lubricating oil into bearing frame 12.

The working principle is as follows: in use, the cylinder 4 is first supplied with air so that the cylinder 4 has a power source, which is prior art and not described herein.

When the valve body 1 needs to be closed, the control cylinder 4 works and extends out, the crank 6 is pushed to swing anticlockwise, the crank 6 drives the lever 8 to warp upwards, the lever 8 drives the connecting rod 9 and the spherical valve core 10 to ascend, the sealing ring 11 is attached, and closing is achieved.

On the contrary, when the valve body 1 needs to be opened, only the driving cylinder 4 needs to be contracted.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. 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. The utility model provides a one-way self sealss valve, includes valve body (1), its characterized in that: the outer surface of the valve body (1) is welded with a connecting frame (2), the outer surface of one side of the connecting frame (2) departing from the valve body (1) is movably connected with a cylinder seat (3), the outer surface of the cylinder seat (3) is fixedly connected with a cylinder (4) through a bolt, the output end of the cylinder (4) is fixedly screwed with a connecting piece (5), and one end of the connecting piece (5) departing from the cylinder (4) is movably connected with a crank (6), a connecting shaft (7) is fixedly inserted at one end of the crank (6) far away from the connecting piece (5), one end of the connecting shaft (7) departing from the crank (6) penetrates through the connecting frame (2) and is rotationally connected with the connecting frame (2), and a lever (8) is sleeved on the outer surface of the connecting shaft (7), one end, far away from the connecting shaft (7), of the lever (8) is movably connected with a connecting rod (9), and a spherical valve core (10) is sleeved at the bottom of the connecting rod (9).

2. A one-way self-sealing valve as claimed in claim 1, wherein: the lower surface of the valve body (1) is embedded with a sealing ring (11).

3. A one-way self-sealing valve as claimed in claim 1, wherein: both ends of connecting axle (7) all are equipped with antifriction bearing, and antifriction bearing's surface cover is equipped with bearing frame (12), bearing frame (12) are connected through the outer fixed surface of bolt and link (2), and connecting axle (7) rotate with bearing frame (12) through antifriction bearing and be connected.

4. A one-way self-sealing valve as claimed in claim 2, wherein: the bottom of the connecting rod (9) is inserted with a bayonet lock, and the bottom of the connecting rod (9) is fixedly connected with the top of the spherical valve core (10) through the bayonet lock.

5. A one-way self-sealing valve as claimed in claim 4, wherein: the spherical valve core (10) is composed of a hemispherical valve bowl and a cylindrical connecting pipe, the connecting pipe is welded at the center of a convex surface of the hemispherical valve bowl, the convex surface of the hemispherical valve bowl is abutted against the sealing ring (11), and the bottom end of the connecting rod (9) is inserted into the connecting pipe and is fixedly inserted through a clamping pin.

6. A one-way self-sealing valve as claimed in claim 3, wherein: bearing frame (12) on fixed be equipped with bearing cap (13) of looks adaptation, the quantity of bearing frame (12) is two, each one in the left and right sides of link (2).