CN212131313U

CN212131313U - Novel stop valve

Info

Publication number: CN212131313U
Application number: CN202020466618.8U
Authority: CN
Inventors: 马志勇; 姜鸥; 杜平平
Original assignee: Dalian Pinguan High And Medium Pressure Special Valve Co ltd
Current assignee: Dalian Pinguan High And Medium Pressure Special Valve Co ltd
Priority date: 2020-04-02
Filing date: 2020-04-02
Publication date: 2020-12-11
Anticipated expiration: 2030-04-02

Abstract

The utility model discloses a novel stop valve, including valve body and first screw rod, the inside rigid coupling in the upper end outside of valve body has a plurality of first screw rods, the inner wall top rigid coupling of valve body has first sealed the pad, the inside center of valve body is equipped with the valve plate, the lower extreme rigid coupling of valve plate has the sealed pad of second, first sealed pad and the sealed pad of second can form hard seal, the upper and lower both sides of carousel all closely laminate with third nut and third screw rod, and the third screw rod links to each other with third nut screw thread. This novel stop valve, structure scientific and reasonable, convenience safe in utilization is provided with the cooperation between valve body, valve gap, valve plate, the sealed pad of first sealed pad, second, sleeve and the carousel, makes this valve in closed use, and the sealed pad of first sealed pad and second realizes closing of valve through the mode of hard seal, has avoided prior art to lead to the poor problem of leakproofness under the high temperature or corrosive medium condition through material such as rubber is sealed.

Description

Novel stop valve

Technical Field

The utility model relates to a stop valve technical field specifically is a novel stop valve.

Background

The stop valve is also called stop valve, belonging to forced sealing valve, so when the valve is closed, it must apply pressure to the valve clack to force the sealing surface not to leak, when the medium enters the valve from the lower part of the valve clack, the resistance to be overcome by the operation force is the friction force of the valve stem and the packing material and the thrust force produced by the pressure of the medium.

Although the stop valve in the prior art can be used, the prior art has the problem that the sealing performance is poor under the condition of high temperature or corrosive medium due to the sealing of materials such as rubber, and the problem that the opening and closing state of the valve is easy to change due to the operation of mistaken collision still exists.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a novel stop valve to solve the sealed poor problem of leakproofness that leads to under the high temperature or the corrosive medium condition of material such as rubber that provides in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a novel stop valve comprises a valve body and a first screw rod, wherein a plurality of first screw rods are fixedly connected inside the outer side of the upper end of the valve body, a first sealing gasket is fixedly connected above the inner wall of the valve body, a valve plate is arranged at the center inside the valve body, a second sealing gasket is fixedly connected at the lower end of the valve plate, the first sealing gasket and the second sealing gasket can form hard sealing, the upper part of the valve plate is fixedly connected with a third screw rod through a connecting piece, a valve cover is in clearance fit with the outer wall of the first screw rod, the outer wall of the first screw rod is in threaded connection with a first nut, a plurality of fillers are placed on the inner side above the valve cover, the fillers are tightly attached to a filler gland, the valve cover and the third screw rod, a second screw rod is in clearance fit with the inner side of the filler gland, the lower part of the second screw rod is rotatably connected with the valve cover through a pin shaft, and a second, the left end of valve gap passes through branch and the fixed linking to each other of sleeve, the sleeve links to each other with third screw rod screw thread, the top of third screw rod is equipped with the carousel, the upper and lower both sides of carousel all closely laminate with third nut and third screw rod, and the third screw rod links to each other with third nut screw thread.

Preferably, telescopic upper end rigid coupling has the baffle, the lower extreme outside recess of baffle all with the inboard lug looks joint in upper end of montant, montant and the equal clearance fit of carousel, the upper end rigid coupling of montant has the roof, the lower extreme center rigid coupling of roof has the spring.

Preferably, the outer sides of the left end and the right end of the valve body are respectively provided with a threaded hole for being connected with an external flange.

Preferably, a sealing ring is installed at the joint of the inner sides of the valve body and the valve cover.

Preferably, the left vertical rod and the right vertical rod are symmetrically distributed on the left and right by taking the axis of the third screw as a reference.

Compared with the prior art, the beneficial effects of the utility model are that: this novel stop valve, structure scientific and reasonable, convenience safe in utilization:

be provided with the cooperation between valve body, valve gap, valve plate, first sealed pad, the sealed pad of second, sleeve and the carousel, make this valve in closed use, the sealed closing that realizes the valve through the mode of hard seal of first sealed pad and second, avoided prior art to lead to the poor problem of leakproofness under the high temperature or corrosive medium condition through material such as rubber is sealed.

Be provided with the third screw rod, the carousel, the valve body, the sleeve, the valve plate, the roof, a spring, cooperation between baffle and the montant, before making the change that opens and shuts that needs to carry out this valve, the user needs the outer wall of carousel to be held by hand, promote the roof downwards simultaneously, make the montant drive the block between lug and the baffle of inboard upper end and relieve, rotate the carousel again and realize the adjustment, loosen the roof after accomplishing the adjustment of opening and shutting, the lug of montant department can constitute the block structure with the baffle once more, the easy problem that causes the open and shut state of valve to change because of the operation that the mistake bumped of prior art has been.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the valve body, the first nut and the bonnet of FIG. 1;

FIG. 3 is a schematic view of the structure of the rotary disk, the third nut and the spring in FIG. 1;

fig. 4 is a schematic structural view of the valve body, the third screw and the valve plate in fig. 1.

In the figure: 1. the valve body, 2, the first sealing gasket, 3, the connecting piece, 4, the second sealing gasket, 5, the valve plate, 6, the first stud, 7, the first nut, 8, the packing, 9, the packing gland, 10, the supporting rod, 11, the rotary table, 12, the top plate, 13, the spring, 14, the third nut, 15, the vertical rod, 16, the baffle, 17, the sleeve, 18, the second nut, 19, the second screw rod, 20, the valve cover, 21, the third screw rod, 22 and the pin shaft.

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. 1-4, the present invention provides a technical solution: a novel stop valve comprises a valve body 1 and a first screw rod 6, wherein a plurality of first screw rods 6 are fixedly connected inside the outer side of the upper end of the valve body 1, the valve body 1 can support the first screw rods 6, a first sealing gasket 2 is fixedly connected above the inner wall of the valve body 1, a valve plate 5 is arranged at the center inside the valve body 1 and used for limiting the relative position of the valve plate 5 and the valve body 1, a second sealing gasket 4 is fixedly connected at the lower end of the valve plate 5, the first sealing gasket 2 and the second sealing gasket 4 can form a hard seal, the valve plate 5 and the valve body 1 are fixedly connected through the hard seal between the first sealing gasket 2 and the second sealing gasket 4, the upper part of the valve plate 5 is fixedly connected with a third screw rod 21 through a connecting piece 3, the third screw rod 21 can drive the valve plate 5 to move, a valve cover 20 is in clearance fit with the outer wall of the first screw rod 6, the valve cover 20 can move on the outer wall of the first screw rod, the valve plate 1 and the valve cover 20 can be fixedly connected by screwing the first nut 7, a plurality of fillers 8 are placed on the inner side above the valve cover 20, the fillers 8 are tightly attached to the filler gland 9, the valve cover 20 and the third screw 21, the fillers 8 are connected with the filler gland 9, the valve cover 20 and the third screw 21 by tight attachment, a second screw 19 is in clearance fit with the inner part of the right side of the filler gland 9, the lower part of the second screw 19 is rotationally connected with the valve cover 20 through a pin shaft 22, the second screw 19 can rotate around the pin shaft 22, a second nut 18 is in threaded connection with the upper part of the outer wall of the second screw 19, the second nut 18 is screwed to realize the fixation of an installation state of the filler gland 9, the left end of the valve cover 20 is fixedly connected with the sleeve 17 through a support rod 10, the valve cover 20 can support the sleeve 17 through the support rod 10, the sleeve 17 is in threaded connection with the third screw 21, the third screw 21 rotates to lift and move on the inner wall of the sleeve 17, a rotary table 11 is arranged above the third screw 21, the upper side and the lower side of the rotary table 11 are tightly attached to a third nut 14 and the third screw 21, the third screw 21 is in threaded connection with the third nut 14, the third screw 21 and the rotary table 11 can be fixed by screwing the third nut 14, the upper end of the sleeve 17 is fixedly connected with a baffle 16, the baffle 17 can support the baffle 16, grooves on the outer side of the lower end of the baffle 16 are respectively clamped with a convex block on the inner side of the upper end of a vertical rod 15, the baffle 16 can limit the rotation of the vertical rod 15, the vertical rod 15 and the rotary table 11 are in clearance fit, the vertical rod 15 can move on the inner wall of the rotary table 11, a top plate 12 is fixedly connected to the upper end of the vertical rod 15, the top plate 12 can drive the vertical rod 15 to move, a spring 13 is fixedly connected to the center of the lower, the threaded holes used for being connected with an external flange are machined in the outer sides of the left end and the right end of the valve body 1, the valve body 1 is convenient to be connected with the external flange, the sealing ring is installed at the joint of the inner sides of the valve body 1 and the valve cover 20, leakage of the valve body 1 and the valve cover 20 is avoided, the left vertical rod 15 and the right vertical rod 15 are symmetrically distributed on the left and the right by taking the axis of the third screw rod 21 as the reference, and the relative positions of the vertical rod 15 and the third screw rod.

When the novel stop valve is required to be used, firstly, a user can install the valve plate 3 which is processed and provided with the second sealing gasket 4 and the third screw 21 above the inner central inner wall of the valve body 1, then the valve cover 20 is moved from top to bottom on the outer wall through the first screw 6 and the first nut 7 is screwed down to realize the connection and fixation between the valve body 1 and the valve cover 20, then the filler 8 is placed into the upper end of the valve cover 20, then the filler gland 9 is installed through the second screw 19 and the second nut 18, so that the filler gland 9 can extrude the filler 8 to realize the sealing, the assembly of the valve can be completed, in the using process, the pipeline communication can be carried out between the threaded holes on the outer sides of the left end and the right end of the valve body 1 and an external flange, when the valve is required to be opened, the user needs to hold the rotary disc 11 and push the top plate 12 downwards, so that the top plate 12 drives the convex block, remove the rotation restriction, then rotate carousel 11 and can realize opening and shutting of this valve, after the completion is opened and shut and is handled, loosen roof 12, the lug of the inboard upper end of montant 14 can form block structure again with the corresponding position recess of baffle 16 lower extreme, avoid bumping the problem that causes the valve state change that opens and shuts because of the mistake in the use, simultaneously in the valve use, because first sealed pad 2 and second sealed pad 4 adopt the sealed mode of hard realization, the circumstances that the leakproofness can not appear causing obvious destruction is used to this equipment under the medium circumstances that high temperature or corrosivity are stronger to the while.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a novel stop valve, includes valve body (1) and first screw rod (6), the inside rigid coupling in the upper end outside of valve body (1) has a plurality of first screw rods (6), its characterized in that: the valve is characterized in that a first sealing gasket (2) is fixedly connected to the upper portion of the inner wall of the valve body (1), a valve plate (5) is arranged at the center of the inner portion of the valve body (1), a second sealing gasket (4) is fixedly connected to the lower end of the valve plate (5), the first sealing gasket (2) and the second sealing gasket (4) can form hard sealing, the upper portion of the valve plate (5) is fixedly connected with a third screw (21) through a connecting piece (3), a valve cover (20) is in clearance fit with the outer wall of the first screw (6), a first nut (7) is connected with the outer wall of the first screw (6) in a threaded manner, a plurality of fillers (8) are placed on the inner side of the upper portion of the valve cover (20), the fillers (8) are tightly attached to a packing gland (9), the valve cover (20) and the third screw (21), a second screw (19) is in clearance fit with the inner portion of the right side of the packing gland (9), and the second screw (19) is rotatably connected, the outer wall top screw thread of second screw rod (19) links to each other has second nut (18), the left end of valve gap (20) is passed through branch (10) and is fixed continuous with sleeve (17), sleeve (17) and third screw rod (21) screw thread link to each other, the top of third screw rod (21) is equipped with carousel (11), the upper and lower both sides of carousel (11) all closely laminate with third nut (14) and third screw rod (21), and third screw rod (21) and third nut (14) screw thread link to each other.

2. The new stop valve of claim 1, wherein: the upper end rigid coupling of sleeve (17) has baffle (16), the lower extreme outside recess of baffle (16) all with the inboard lug looks joint in upper end of montant (15), montant (15) and carousel (11) equal clearance fit, the upper end rigid coupling of montant (15) has roof (12), the lower extreme center rigid coupling of roof (12) has spring (13).

3. The new stop valve of claim 1, wherein: and threaded holes for being connected with an external flange are processed on the outer sides of the left end and the right end of the valve body (1).

4. The new stop valve of claim 1, wherein: and a sealing ring is arranged at the joint of the inner sides of the valve body (1) and the valve cover (20).

5. A novel shut-off valve as defined in claim 2, wherein: the left vertical rod (15) and the right vertical rod (15) are symmetrically distributed in the left-right direction by taking the axis of the third screw (21) as a reference.