CN111022693A

CN111022693A - Novel sealing valve

Info

Publication number: CN111022693A
Application number: CN201911264702.XA
Authority: CN
Inventors: 柴知章; 李凡
Original assignee: Anhui Institute of Information Engineering
Current assignee: Anhui Institute of Information Engineering
Priority date: 2019-12-11
Filing date: 2019-12-11
Publication date: 2020-04-17

Abstract

The invention discloses a novel sealing valve, which relates to the technical field of valves and comprises a valve body, a rotary cylinder, a rotary mechanism and a sealing element, wherein a first horizontal through hole is formed in the valve body in the horizontal direction, a first vertical through hole extending from the upper end to the first horizontal through hole is formed in the valve body in the vertical direction, the upper end of the valve body is detachably connected with a support frame, the rotary cylinder is arranged at the upper end of the support frame, the rotary mechanism is arranged at the output end of the rotary cylinder and used for controlling the opening, closing and flow rate of a circulating medium in the valve, and the sealing element is arranged in the valve body and is used for sealing the circulating medium in the. The invention effectively enhances the flow choking effect of the valve body; the valve can be adapted to communicating pipelines with different calibers, and the structure that the valve core is separated from the sealing element is convenient to disassemble and has universality, so that the maintenance cost is saved.

Description

Novel sealing valve

Technical Field

The invention relates to the technical field of valves, in particular to a novel sealing valve.

Background

The valve is a mechanical device for controlling the flow, flow direction, pressure, temperature, etc. of flowing fluid medium, is a control component in a pipeline fluid conveying system, is used for changing the section of a passage and the flowing direction of the medium, and has the functions of diversion, stopping, regulation, throttling, check, overflow pressure relief, etc.

At present, the existing valve body is mostly the integrated into one piece's foundry goods metal material, finds often to have following drawback in the use: firstly, the valve seal is hard seal by directly contacting the valve core and the valve body, and when a sealing surface works in water, deformation and damage are inevitable after long-time impact and scouring, so that complete sealing cannot be realized; although some small-caliber valve cores are also subjected to soft sealing by adopting integral coated rubber to improve the sealing performance, the rubber on the valve cores is damaged, so that the valve cores are inconvenient to maintain and even integrally replace, the waste of resources is caused, the valve cores are generally limited to valves below DN500, and the valve cores are not suitable for large-caliber valves and have no universality.

Disclosure of Invention

The object of the present invention is to provide a new sealing valve to solve the above mentioned drawbacks of the prior art.

The utility model provides a novel sealing valve, includes valve body, revolving cylinder, rotary mechanism and sealing member, horizontal through-hole one has been seted up in the horizontal direction on the valve body, has seted up the vertical through-hole that extends to horizontal through-hole one from the upper end in vertical direction, and the upper end of valve body can be dismantled and is connected with the support frame, revolving cylinder installs in the upper end of support frame, rotary mechanism installs on revolving cylinder's output to be used for controlling opening and close and the velocity of flow of circulation medium in the valve, the sealing member sets up inside the valve body to come to seal up the circulation medium in the valve with cooperation rotary mechanism, rotary mechanism includes connector, valve rod and case, the upper end of connector links to each other with revolving cylinder's output, the lower extreme of connector run through the support frame and with the upper end of valve rod links to each other, and the lower extreme of valve rod links to each other with the case through vertical through- And the lower end of the valve core is rotatably connected to the valve body.

Preferably, the sealing member has two and is the rubber material, the upper end of valve body sets up the chamber of placing that two symmetries set up, place chamber and sealing member phase-match, place the side in chamber and set up the hole of stepping down that extends to horizontal through-hole one, the sealing member is inserted and is established and place the intracavity, and the upper end of sealing member is fixed mutually through the fixing bolt of joint support frame and valve body, has seted up spheroidal interior concave surface on the side end face of sealing member, interior concave surface runs through the hole of stepping down and cooperatees with the side of case.

Preferably, the valve body is provided with shoulders for limiting at two ends in the horizontal direction, the shoulders are connected with connecting pieces welded with the pipeline in an abutting mode, external threads are formed in the surfaces of the parts, not the shoulders, at the two ends of the valve body, and locking pieces used for fixing the connecting pieces are connected in a threaded mode.

Preferably, the diameter of the inner ring of the connecting piece is not smaller than the outer diameter of the shoulder, and the diameter of the outer ring of the connecting piece is not larger than the diameter of the inner ring of the locking piece.

Preferably, be equipped with the arch that a plurality of hoop set up on the outer lane of connecting piece, the inner wall interference fit of bellied outer fringe and connecting tube further strengthens the fixed when with the pipe welding, be equipped with the sand grip that a plurality of hoop set up on the outer lane of retaining member, the sand grip has increased the coefficient of friction on surface, is convenient for lock the connecting piece fixedly more.

Preferably, the second horizontal through hole is square, and the area of the second horizontal through hole is not larger than the area of an inner circle of the pipeline.

The invention has the advantages that:

(1) through setting up rotary mechanism and sealing member that mutually supports, especially the peculiar structure of rotary mechanism inner valve core, can realize when the two back that leaves mutually that the circulation medium passes through the horizontal through-hole one on the valve body smoothly, when the two laminating back, the effectual choked flow effect that has strengthened the valve body.

(2) Through placing intracavity installation sealing member at two symmetries settings, it is fixed with the fixing bolt of valve body through joint support frame, the structure of the two separation of case and sealing member can realize when one of them component because normal wearing and tearing take place to damage the back, only need to change the new corresponding component of same specification can, need not wholly to change, and do not change original choked flow effect, still be suitable for the valve of other bores, practiced thrift the maintenance cost more when possessing the commonality.

(3) Through set up the connecting piece of removable different specifications between the both ends of valve body horizontal direction and retaining member, can realize this valve adaptation in the intercommunication pipeline of different bores, have the commonality more.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a side view (in partial cross-section) of the present invention.

Fig. 3 is a sectional view taken in the direction B-B in fig. 3 (valve-closed state).

Fig. 4 is a sectional view taken along the direction B-B in fig. 3 (valve fully opened state).

Fig. 5 is a schematic structural view of the support frame of the present invention.

Fig. 6 is a schematic structural diagram of the connecting head of the present invention.

Fig. 7 is a schematic structural view of the sealing member of the present invention.

Fig. 8 is a schematic structural view of the valve cartridge of the present invention.

Fig. 9 is a schematic view of the structure of the valve stem of the present invention.

The valve comprises a valve body 1, a rotary cylinder 2, a rotary mechanism 3, a sealing element 4, a horizontal through hole I5, a vertical through hole 6, a support frame 7, a shoulder 8, a connector 9, a locking element 10, a protrusion 11, a protrusion 12, a connector 301, a valve rod 302, a valve core 303, a horizontal through hole II 304, a placing cavity 401, a receding hole 402 and an inner concave surface 403.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1 to 9, a novel sealing valve comprises a valve body 1, a rotary cylinder 2, a rotary mechanism 3 and a sealing element 4, wherein a horizontal through hole 5 is formed in the valve body 1 in the horizontal direction, a vertical through hole 6 extending from the upper end to the horizontal through hole 5 is formed in the vertical direction, a support frame 7 is detachably connected to the upper end of the valve body 1, the rotary cylinder 2 is installed at the upper end of the support frame 7, the rotary mechanism 3 is installed at the output end of the rotary cylinder 2 and used for controlling the opening and closing and the flow rate of a circulating medium in the valve, the sealing element 4 is arranged in the valve body 1 and is used for sealing the circulating medium in the valve by matching with the rotary mechanism 3, the rotary mechanism 3 comprises a connector 9, a valve rod 302 and a valve core 303, the upper end of the connector 9 is connected with the output end of the rotary cylinder 2, the lower end of the connector 9, the lower end of the valve rod 302 is connected with a valve core 303 through a vertical through hole 6, the valve core 303 is in a lantern shape, a second horizontal through hole 304 for passing a circulating medium is formed in the horizontal direction, and the lower end of the valve core 303 is rotatably connected to the valve body 1.

In this embodiment, sealing member 4 has two and is the rubber material, the upper end of valve body 1 is seted up the chamber 401 of placing that two symmetries set up, place chamber 401 and sealing member 4 phase-match, place the side of chamber 401 and set up the hole 402 of stepping down that extends to horizontal through-hole 5, sealing member 4 is inserted and is established and place in the chamber 401, and the upper end of sealing member 4 is fixed mutually through the fixing bolt of joint support frame 7 with valve body 1, has seted up spheroidal interior concave surface 403 on the side end face of sealing member 4, interior concave surface 403 runs through the side cooperation of hole 402 of stepping down and case 303.

It should be noted that the rubber herein is a high-elasticity polymer material with reversible deformation, is rich in elasticity at room temperature, can produce large deformation under the action of small external force, and can recover to the original shape after the external force is removed, and the material also has a large temperature range to bear normal use, and this characteristic enables the sealing element 4 to produce certain deformation along with the rotation of the valve core when operating in water, and can be tightly combined with the valve core, thereby enabling the valve body to have better sealing performance.

In this embodiment, the valve body 1 is provided with shoulders 8 for limiting at two ends in the horizontal direction, the shoulders 8 are abutted with connecting pieces 301 for welding with a pipeline, and the surfaces of the parts of the valve body 1, other than the shoulders 8, at the two ends are provided with external threads and are in threaded connection with locking pieces 10 for fixing the connecting pieces 301.

In this embodiment, the inner diameter of the coupling member 301 is not smaller than the outer diameter of the shoulder 8, and the outer diameter of the coupling member 301 is not larger than the inner diameter of the locking member 10.

It is worth noting, be equipped with protruding 11 that a plurality of hoop set up on connecting piece 301's the outer lane, the outer fringe of protruding 11 and the inner wall interference fit of connecting tube further strengthen fixed when with the pipeline welding, be equipped with the sand grip 12 that a plurality of hoop set up on retaining member 10's the outer lane, sand grip 12 has increased surperficial coefficient of friction, is convenient for lock more fixedly connecting piece 301.

In addition, the second horizontal through hole 304 is square, and the area of the second horizontal through hole 304 is not larger than the area of an inner circle of the pipeline.

The working process and principle are as follows: when the invention is used, firstly, the connecting piece 301 matched with the connecting pipeline is selected and is abutted against and sleeved on the shoulders 8 at the two ends of the valve body 1, then the connecting piece 301 which is penetrated by the locking piece 10 is sleeved and connected on the valve body 1 in a threaded manner, and the locking piece 10 is locked, namely, the connecting piece 301 at the other end is fixed in the same step, after the connecting piece 301 is welded with the pipeline, the rotary air cylinder 2 is started to control the output end of the rotary air cylinder to drive the valve rod 302 through the connecting head 9, and then the valve core 303 connected to the lower end of the valve rod 302 is driven to rotate, when the horizontal through hole two 304 and the horizontal through hole one 5 generate intersection, namely, after the horizontal through hole two 304 and the horizontal through hole one 5 are partially overlapped, the fluid medium in the pipeline can pass through, and after the valve core 303 rotates to 90 degrees, the valve core 303 is in a full-open state, at the time, the periphery of the second horizontal through hole 304 is in fit sealing with the inner concave surface 403, so that fluid media in the pipeline are completely blocked, and due to the special structure of the valve core 303, high pressure in the pipeline can be resisted, and two ends of the valve core 303 can be simultaneously blocked.

Based on the above, the rotating mechanism 3 and the sealing element 4 which are matched with each other are arranged, and particularly the special structure of the valve core 303 in the rotating mechanism 3 is arranged, so that a circulating medium can smoothly pass through the horizontal through hole I5 on the valve body 1 after the rotating mechanism 3 and the valve core are separated from each other, and the flow resisting effect of the valve body 1 is effectively enhanced after the rotating mechanism 3 and the valve core are attached;

by installing the sealing elements 4 in the two symmetrically arranged placing cavities 401, fixing the sealing elements by the fixing bolts connecting the supporting frame 7 and the valve body 1 and the structure that the valve core 303 and the sealing elements 4 are separated, when one of the elements is damaged due to normal abrasion, only the corresponding element with the same specification needs to be replaced, the whole replacement is not needed, the original flow resisting effect is not changed, the valve is still suitable for valves with other calibers, the universality is realized, and the maintenance cost is saved;

through set up the connecting piece 301 of removable different specifications between the both ends of valve body 1 horizontal direction and retaining member 10, can realize this valve adaptation in the intercommunication pipeline of different bores, have the commonality more.

It will be appreciated by those skilled in the art that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The embodiments disclosed above are therefore to be considered in all respects as illustrative and not restrictive. All changes which come within the scope of or equivalence to the invention are intended to be embraced therein.

Claims

1. The novel sealing valve is characterized by comprising a valve body (1), a rotary cylinder (2), a rotary mechanism (3) and a sealing element (4), wherein a horizontal through hole (5) is formed in the valve body (1) in the horizontal direction, a vertical through hole (6) extending from the upper end to the horizontal through hole (5) is formed in the vertical direction, a support frame (7) is detachably connected to the upper end of the valve body (1), the rotary cylinder (2) is installed at the upper end of the support frame (7), the rotary mechanism (3) is installed at the output end of the rotary cylinder (2) and used for controlling the opening, closing and flow rate of circulating media in the valve, the sealing element (4) is arranged inside the valve body (1) and is used for sealing the circulating media in the valve in cooperation with the rotary mechanism (3), and the rotary mechanism (3) comprises a connector (9), a valve rod (302) and a valve core (303), the upper end of connector (9) links to each other with the output of revolving cylinder (2), the lower extreme of connector (9) run through support frame (7) and with the upper end of valve rod (302) links to each other, and the lower extreme of valve rod (302) passes through vertical through-hole (6) and links to each other with case (303), case (303) are "lantern" shape and offer the horizontal through-hole two (304) that are used for the circulation medium to pass through in the horizontal direction, and the lower extreme of case (303) rotates and connects on valve body (1).

2. A novel sealing valve according to claim 1, characterized in that: sealing member (4) have two and are the rubber material, the upper end of valve body (1) is seted up placing chamber (401) that two symmetries set up, place chamber (401) and sealing member (4) phase-match, place the side of chamber (401) and set up hole of stepping down (402) that extend to horizontal through-hole (5), sealing member (4) are inserted and are established and place in chamber (401), and the upper end of sealing member (4) is fixed mutually through the fixing bolt of joint support frame (7) and valve body (1), seted up spheroidal interior concave surface (403) on the side end face of sealing member (4), interior concave surface (403) run through hole of stepping down (402) and the side cooperation of case (303).

3. A novel sealing valve according to claim 2, characterized in that: be equipped with on valve body (1) on the both ends of horizontal direction and be used for spacing circular bead (8), circular bead (8) are gone up the butt joint and are used for with pipeline welded connecting piece (301) mutually, and the external screw thread has been seted up on the surface of valve body (1) both ends non-circular bead (8) part to threaded connection has retaining member (10) that are used for fixed connection spare (301).

4. A novel sealing valve according to claim 3, characterized in that: the diameter of the inner ring of the connecting piece (301) is not smaller than the outer diameter of the shoulder (8), and the diameter of the outer ring of the connecting piece (301) is not larger than the diameter of the inner ring of the locking piece (10).

5. A novel sealing valve according to claim 3, characterized in that: be equipped with protruding (11) that a plurality of hoop set up on the outer lane of connecting piece (301), the outer fringe of protruding (11) and the inner wall interference fit of connecting tube way further strengthen fixed when with the pipeline welding, be equipped with sand grip (12) that a plurality of hoop set up on the outer lane of retaining member (10), sand grip (12) have increased the coefficient of friction on surface, are convenient for lock the fixing to connecting piece (301) more.

6. A novel sealing valve according to claim 1, characterized in that: the second horizontal through hole (304) is square, and the area of the second horizontal through hole (304) is not larger than the area of an inner circle of the pipeline.