CN211975925U

CN211975925U - Hard seal flange stop valve

Info

Publication number: CN211975925U
Application number: CN202020543300.5U
Authority: CN
Inventors: 郑博; 程文斌; 程祖梁
Original assignee: Jiute Valve Co ltd
Current assignee: Jiute Valve Group Co.,Ltd.
Priority date: 2020-04-14
Filing date: 2020-04-14
Publication date: 2020-11-20
Anticipated expiration: 2030-04-14

Abstract

The utility model discloses a hard seal flange stop valve, including stop valve main part and runner, the stop valve main part is including valve rod, disk seat, ring flange and valve body, table wall fixed mounting has first spacing seat in the vertical end of disk seat, table wall fixed mounting has the gag lever post in the vertical end of first spacing seat, the vertical end that first spacing seat one side was kept away from to the disk seat closes soon through the screw thread and is connected with the rotation screw rod. The utility model discloses in, accomplish through rotating the valve rod and adjust the completion back to the stop valve main part, drive through the runner and rotate the screw rod and rotate, promote the spacing seat of second and remove when rotating the screw rod relatively with the spacing seat of second, the spacing seat of second slides and hugs closely the outer table wall of valve rod with the gag lever post, and the first spacing seat of the fixed setting of the spacing seat cooperation of second carries on spacingly to the valve rod this moment, avoids the valve rod to take place abnormal axial deflection to hard sealing flange stop valve stability in use has been improved.

Description

Hard seal flange stop valve

Technical Field

The utility model relates to a stop valve technical field especially relates to a hard seal flange stop valve.

Background

The flange stop valve is a forced seal 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 the medium enters the valve six from the lower part of the valve clack, the resistance to be overcome by the operating force is the friction force of the valve rod and the packing and the thrust generated by the pressure of the medium, 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 buckling can occur. In recent years, after self-sealing valves appear, the medium flow direction of the flange stop valve enters the valve cavity from the upper part of the valve clack instead, at the moment, the force for closing the valve is small under the action of medium pressure, the force for opening the valve is large, and the diameter of the valve rod can be correspondingly reduced.

Firstly, a valve rod of the existing hard sealing flange stop valve is lack of a limiting mechanism, and the valve rod is easy to deflect abnormally when being subjected to external impact force, so that the normal operation of the stop valve is influenced, and the use stability of the hard sealing flange stop valve is reduced; secondly, the water guide ends on two sides of the existing hard sealing flange stop valve are mostly arranged in a straight-through mode, solid impurities with large volume are easily clamped in water introduced from the outside, and the solid impurities are easy to cause the rotating assembly in the valve core to be jammed after invading into the valve core, so that the using effect of the hard sealing flange stop valve is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: in order to solve the problems, a hard seal flange stop valve is provided.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a hard seal flange stop valve, includes stop valve main part and runner, the stop valve main part is including valve rod, disk seat, ring flange and valve body, table wall fixed mounting has first spacing seat in the vertical end of disk seat, table wall fixed mounting has the gag lever post in the vertical end of first spacing seat, the vertical end that first spacing seat one side was kept away from to the disk seat closes soon through the screw thread and is connected with the rotation screw rod, rotation screw rod horizontal end one side block is connected with the spacing seat of second, just the vertical end of the spacing seat of second and gag lever post sliding connection.

As a further description of the above technical solution:

the inner surface wall of the flange plate is fixedly provided with a mounting ring seat, and the inner surface wall of the mounting ring seat is elastically connected with a separation net through an elastic connection belt.

As a further description of the above technical solution:

the outer surface wall of the rotating screw is fixedly provided with a convex ring, and the convex ring is clamped and connected with the second limiting seat through a clamping groove which is annularly arranged.

As a further description of the above technical solution:

and elastic cushion layers are fixedly arranged on one sides of the first limiting seat and the second limiting seat close to the valve rod.

As a further description of the above technical solution:

the limiting rod is of an inverted T-shaped structure.

As a further description of the above technical solution:

the mounting ring seat is fixedly connected with the inner surface wall of the flange plate through bolts.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:

1. the utility model discloses in, accomplish through rotating the valve rod and adjust the completion back to the stop valve main part, drive through the runner and rotate the screw rod and rotate, promote the spacing seat of second and remove when rotating the screw rod relatively with the spacing seat of second, the spacing seat of second slides and hugs closely the outer table wall of valve rod with the gag lever post, and the first spacing seat of the fixed setting of the spacing seat cooperation of second carries on spacingly to the valve rod this moment, avoids the valve rod to take place abnormal axial deflection to hard sealing flange stop valve stability in use has been improved.

2. The utility model discloses in, through the net that separates of the vertical installation of table wall in the ring flange, keep apart the great impurity of volume in the water, avoid impurity to invade the valve core, and separate the net through elasticity even take and mount ring seat elastic connection for it can take place to swing under the impact of rivers to separate the net, and the effect of avoiding impurity because of the negative pressure adsorbs on separating the net with this, has guaranteed the normal conduction of water, thereby has improved the result of use of hard seal flange stop valve.

Drawings

Fig. 1 shows a schematic structural diagram provided according to an embodiment of the present invention;

fig. 2 shows a schematic structural diagram of a location a provided according to an embodiment of the present invention;

fig. 3 shows an enlarged schematic structural view of the first and second limiting seats according to an embodiment of the present invention.

Illustration of the drawings:

1. a shut-off valve body; 101. a valve stem; 102. a valve seat; 103. a flange plate; 104. a valve body; 2. rotating the screw; 3. a rotating wheel; 4. installing a ring seat; 5. separating the net; 6. elastic connection is carried out; 7. a first limiting seat; 8. a limiting rod; 9. a second limiting seat; 10. a convex ring; 11. a card slot; 12. an elastic cushion layer.

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 of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a hard seal flange stop valve, including stop valve main part 1 and runner 3, stop valve main part 1 is including valve rod 101, disk seat 102, ring flange 103 and valve body 104, table wall fixed mounting has first spacing seat 7 in the vertical end of disk seat 102, table wall fixed mounting has gag lever post 8 in the vertical end of first spacing seat 7, the vertical end that first spacing seat 7 one side was kept away from to disk seat 102 closes soon through the screw thread to be connected with

rotates screw rod

2, 2 horizontal end one side blocks of rotation screw rod are connected with spacing seat 9 of second, and the vertical end of the spacing seat 9 of second and 8 sliding connection of gag lever post.

Specifically, as shown in fig. 1, the interior table wall fixed mounting of ring flange 103 has the collar seat 4, the interior table wall of collar seat 4 has the net 5 that separates through the even 6 elastic connection of elasticity, through the net 5 that separates of the vertical installation of the interior table wall of ring flange 103, keep apart the great impurity of volume in the water, avoid impurity to invade in the valve core, and separate net 5 and

link

6 and 4 elastic connection of collar seat through elasticity, make and separate net 5 and can take place the swing under the impact of rivers, so as to avoid impurity because of the effect of negative pressure adsorbs on separating net 5, the normal conduction of water has been guaranteed, thereby the result of use of hard seal flange stop valve has been improved.

Specifically, as shown in fig. 1, the outer wall of the rotary screw 2 is fixedly provided with a convex ring 10, and the convex ring 10 is connected with the second limiting seat 9 in a clamping manner through a clamping groove 11 arranged in an annular manner, so that the rotary screw 2 can only push the second limiting seat 9 in the horizontal direction, and cannot drive the second limiting seat 9 to axially rotate.

Specifically, as shown in fig. 3, the elastic cushion layer 12 is fixedly mounted on both sides of the first limiting seat 7 and the second limiting seat 9 close to the valve rod 101, and the contact effect between the first limiting seat 7 and the second limiting seat 9 and the valve rod 101 is ensured by the elastic potential energy of the elastic cushion layer 12.

Specifically, as shown in fig. 2 and 3, the limiting rod 8 is of an inverted T-shaped structure, so that the second limiting seat 9 is prevented from being separated from the limiting rod 8 while the moving stability of the second limiting seat 9 is ensured.

Specifically, as shown in fig. 1, the mounting ring seat 4 is fixedly connected to the inner surface wall of the flange plate 103 through bolts, so that the mounting ring seat 4 can be conveniently disassembled and assembled.

The working principle is as follows: when the stop valve is used, after the stop valve main body 1 is adjusted by rotating the valve rod 101, the rotating screw rod 2 is driven to rotate by the rotating wheel 3, the rotating screw rod 2 and the second limiting seat 9 rotate relatively and simultaneously push the second limiting seat 9 to move, the second limiting seat 9 and the limiting rod 8 slide and cling to the outer surface wall of the valve rod 101, at the moment, the second limiting seat 9 is matched with the first limiting seat 7 fixedly arranged to limit the valve rod 101, the abnormal axial deflection of the valve rod 101 is avoided, the use stability of the hard sealing flange stop valve is improved, impurities with larger volume in a water body are isolated by the partition net 5 vertically arranged on the inner surface wall of the flange plate 103, the impurities are prevented from entering the valve core, the partition net 5 is elastically connected with the mounting ring seat 4 by the elastic connecting belt 6, the partition net 5 can swing under the impact of water flow, and the impurities are prevented from being adsorbed on the partition net 5 under the action of negative pressure, the normal conduction of the water body is ensured, so that the using effect of the hard sealing flange stop valve is improved.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a hard seal flange stop valve, includes stop valve main part (1) and runner (3), its characterized in that, stop valve main part (1) is including valve rod (101), disk seat (102), ring flange (103) and valve body (104), table wall fixed mounting has first spacing seat (7) in disk seat (102) vertical end, table wall fixed mounting has gag lever post (8) in first spacing seat (7) vertical end, the vertical end of keeping away from first spacing seat (7) one side is closed soon through the screw thread and is connected with rotation screw rod (2) in disk seat (102), it is connected with spacing seat (9) of second to rotate screw rod (2) horizontal end one side block, just the vertical end of spacing seat (9) of second and gag lever post (8) sliding connection.

2. The hard sealing flange stop valve according to claim 1, characterized in that the mounting ring seat (4) is fixedly mounted on the inner surface wall of the flange plate (103), and the inner surface wall of the mounting ring seat (4) is elastically connected with the separation net (5) through an elastic connecting belt (6).

3. The hard sealing flange stop valve according to claim 1, characterized in that a convex ring (10) is fixedly installed on the outer surface wall of the rotating screw rod (2), and the convex ring (10) is connected with the second limiting seat (9) in a clamping manner through a clamping groove (11) which is annularly arranged.

4. The hard sealing flange stop valve according to claim 1, characterized in that an elastic cushion layer (12) is fixedly arranged on one side of the first limit seat (7) and one side of the second limit seat (9) close to the valve rod (101).

5. A hard-sealing flange stop valve according to claim 1, characterized in that the limiting rod (8) is of an inverted T-shaped structure.

6. A hard sealing flange stop valve according to claim 2, characterized in that the mounting ring seat (4) is fixedly connected with the inner surface wall of the flange plate (103) through bolts.