CN208935417U - A kind of cryogenic globe valve - Google Patents

Abstract

The utility model discloses a kind of cryogenic globe valves, including valve body, valve deck and guide pipe, it is bolted at the center of the body top and valve deck is installed, the valve deck internal slide is connected with guide pipe, the valve inner is welded with valve seat, valve port is offered at the valve seat axle center, one end that the shaft is located on the outside of valve deck is welded with turntable, one end that the shaft is located on the inside of valve deck is welded with threaded rod, the threaded rod is plugged on inside guide pipe, the threaded rod is threadedly coupled with guide pipe, the guiding bottom of the tube, which is bolted, is equipped with flap, the valve plug for being equipped with cooperation limiting slot is bolted at the center of the flap lower surface, this cryogenic globe valve drives flap to move down by guide pipe, then flap drives valve plug to be inserted in limiting slot, cooperated by valve plug and limiting slot, prevent flap with There are gaps between valve port, to improve the leakproofness of shut-off valve.

Description

A kind of cryogenic globe valve

Technical field

The utility model relates to shut-off valve technical field, specially a kind of cryogenic globe valve.

Background technique

Shut-off valve is also pipe valve valve, is a kind of one of most popular valve, and why very popular it is, be due to Frictional force is small between sealing surface during opening and closing, relatively durable, and Lift is little, and manufacture is easy, easy to maintenance, is not only applicable in In mesolow, and it is suitable for high pressure；The closure principle of shut-off valve is, by valve stem pressure, to keep valve clack sealing surface close with valve seat Cover fits closely, and prevents flow of media.

It is valve port directly to be blocked by flap, but contact between flap and valve port 1. existing shut-off valve is when in use It is not close, be easy to appear gap, drainage occur so as to cause shut-off valve.

2. existing shut-off valve assembling when, the contact surface between valve body and valve deck be it is smooth, in this way in the mistake of installation Cheng Zhong, valve deck are easy to happen offset relative to valve body, and needing constantly to debug could be aligned valve deck with valve body, cut to reduce The only packaging efficiency of valve.

Utility model content

The purpose of this utility model is to provide a kind of cryogenic globe valves, to solve mentioned above in the background art ask Topic.

To achieve the above object, the utility model provides the following technical solutions: a kind of cryogenic globe valve, including valve body, valve Lid and guide pipe are bolted at the center of the body top and are equipped with valve deck, and the valve deck internal slide is connected with Guide pipe, the valve inner are welded with valve seat, and valve port is offered at the valve seat axle center, offers limit at the top of the valve port Slot, the valve deck top, which is bolted, is equipped with axle sleeve, and shaft, the shaft position are rotatably connected at the axle sleeve axle center One end on the outside of valve deck is welded with turntable, and one end that the shaft is located on the inside of valve deck is welded with threaded rod, the threaded rod It is plugged on inside guide pipe, the threaded rod is threadedly coupled with guide pipe, and the guiding bottom of the tube, which is bolted, to be equipped with Flap is bolted the valve plug for being equipped with cooperation limiting slot at the center of the flap lower surface.

Preferably, the inner wall of the body top offers installation groove, and the valve deck bottom is bolted installation There is the annular stop circle for being coupled groove, is bonded with seal washer between the installation groove and annular stop circle.

Preferably, the side at the top of the guiding pipe outer wall, which is bolted, is equipped with sliding block, the valve deck inner wall Side offers the sliding slot of cooperation sliding block.

Preferably, the valve plug outer wall is uniformly bonded with rubber spacer.

Preferably, the guiding inside pipe wall is uniformly provided with the screw thread of matching thread bar, and the guide pipe is with threaded rod Rotation and move up and down.

Compared with prior art, the utility model has the beneficial effects that

1, the utility model drives flap to move down by guide pipe, and then flap drives valve plug to be inserted in limiting slot, Cooperated by valve plug and limiting slot, prevent between flap and valve port that there are gaps, to improve the leakproofness of shut-off valve.

2, the utility model, being capable of position between limiting valve cap and valve body by installation groove and the cooperation of annular stop circle It sets, prevents valve deck from generating deviation with respect to valve body, facilitate and valve deck is mounted on valve body, improve the packaging efficiency of shut-off valve.

Detailed description of the invention

Fig. 1 is the utility model opening state structural schematic diagram；

Fig. 2 is the utility model closed state structural schematic diagram.

In figure: 1- valve body；11- installation groove；12- valve seat；13- valve port；14- limiting slot；2- valve deck；21- annular stop Circle；22- axle sleeve；23- shaft；24- turntable；25- threaded rod；26- sliding slot；3- guide pipe；31- sliding block；32- flap；33- valve Plug.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

The utility model provides a kind of technical solution referring to FIG. 1-2: a kind of cryogenic globe valve, including valve body 1, valve deck 2 With guide pipe 3, it is bolted at the center at 1 top of the valve body and valve deck 2 is installed, 2 internal slide of the valve deck connection There is guide pipe 3,1 interior welds of valve body have valve seat 12, and valve port 13 is offered at 12 axle center of valve seat, and the valve port 13 pushes up Portion offers limiting slot 14, is bolted at the top of the valve deck 2 and is equipped with axle sleeve 22, the company of rotation at 22 axle center of axle sleeve It is connected to shaft 23, one end that the shaft 23 is located at 2 outside of valve deck is welded with turntable 24, and the shaft 23 is located at 2 inside of valve deck One end be welded with threaded rod 25, the threaded rod 25 is plugged on inside guide pipe 3, the threaded rod 25 and 3 screw thread of guide pipe Connection, 3 bottom of guide pipe, which is bolted, is equipped with flap 32, passes through bolt at the center of 32 lower surface of flap It is fixedly installed with the valve plug 33 of cooperation limiting slot 14.

The inner wall at 1 top of valve body offers installation groove 11, and 2 bottom of valve deck, which is bolted to be equipped with, matches The annular stop circle 21 for closing installation groove 11, is bonded with seal washer between the installation groove 11 and annular stop circle 21, leads to Installation groove 11 and annular stop circle 21 is crossed to cooperate, can position between limiting valve cap 2 and valve body 1, prevent valve deck 2 with respect to valve Body 1 generates deviation, facilitates and valve deck 2 is mounted on valve body 1, improve the packaging efficiency of shut-off valve, and by installing Adhering and sealing washer between groove 11 and annular stop circle 21 prevents gap occur between valve body 1 and valve deck 2, to improve The leakproofness of shut-off valve.

Side at the top of 3 outer wall of guide pipe, which is bolted, is equipped with sliding block 31, the side of 2 inner wall of valve deck The sliding slot 26 for offering cooperation sliding block 31, is used cooperatively by sliding block 31 and sliding slot 26, facilitates guide pipe 3 inside valve deck 2 Sliding, while preventing guide pipe 3 in 2 inner rotation of valve deck, it ensure that guide pipe 3 can be upper and lower with the rotation of threaded rod 25 It is mobile.

33 outer wall of valve plug is uniformly bonded with rubber spacer, by be added rubber spacer prevent valve plug 33 and valve seat 12 it Between collide, while also avoiding between valve plug 33 and limiting slot 14 that there are gaps, to ensure that flap 32 can be complete Valve port 13 is blocked.

3 inner wall of guide pipe is uniformly provided with the screw thread of matching thread bar 25, and the guide pipe 3 is with threaded rod 25 It rotates and moves up and down, drive threaded rod 25 in 2 inner rotation of valve deck by shaft 23, then due to sliding block 31 and sliding slot 26 Cooperation, restricted guidance pipe 3 rotate, and then guide pipe 3 is moved up and down with the rotation of threaded rod 25.

Working principle: when in use, rotating clockwise shaft 23 by turntable 24, and then threaded rod 25 follows 23 turns of shaft It is dynamic, then pass through the cooperation of sliding block 31 and sliding slot 26, the rotation of restricted guidance pipe 3, then guide pipe 3 with threaded rod 25 rotation And lower movement, then guide pipe 3 drives flap 32 to move down, while flap 32 drives valve plug 33 to be inserted in limiting slot 14, leads to It crosses valve plug 33 and blocks valve port 13 with the cooperation of limiting slot 14, to shut-off valve be closed, when needing to open shut-off valve, counterclockwise Rotating shaft 23, then threaded rod 25 is rotated counterclockwise with shaft 23, then guide pipe 3 with the rotation of threaded rod 25 and to Upper movement, then guide pipe 3 drives flap 32 to move up, so that valve plug 33 and limiting slot 14 be separated, while by valve port 13 It opens, and then opens shut-off valve.

It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment Intrinsic element.

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.

Claims (5)

1. a kind of cryogenic globe valve, including valve body (1), valve deck (2) and guide pipe (3), it is characterised in that: valve body (1) top It is bolted and is equipped with valve deck (2) at the center in portion, valve deck (2) internal slide is connected with guide pipe (3), the valve Body (1) interior welds have valve seat (12), offer valve port (13) at valve seat (12) axle center, open up at the top of the valve port (13) Have limiting slot (14), be bolted and be equipped with axle sleeve (22) at the top of the valve deck (2), is rotated at axle sleeve (22) axle center It is connected with shaft (23), the shaft (23) is located at one end on the outside of valve deck (2) and is welded with turntable (24), shaft (23) position One end on the inside of valve deck (2) is welded with threaded rod (25), and the threaded rod (25) is plugged on guide pipe (3) inside, the spiral shell Rasp bar (25) is threadedly coupled with guide pipe (3), and guide pipe (3) bottom, which is bolted, to be equipped with flap (32), described The valve plug (33) for being equipped with cooperation limiting slot (14) is bolted at the center of flap (32) lower surface.

2. a kind of cryogenic globe valve according to claim 1, it is characterised in that: the inner wall at the top of the valve body (1) opens up Have installation groove (11), valve deck (2) bottom is bolted the annular stop circle for being equipped with and being coupled groove (11) (21), seal washer is bonded between the installation groove (11) and annular stop circle (21).

3. a kind of cryogenic globe valve according to claim 1, it is characterised in that: one at the top of guide pipe (3) outer wall Side, which is bolted, to be equipped with sliding block (31), and the side of valve deck (2) inner wall offers the sliding slot of cooperation sliding block (31) (26).

4. a kind of cryogenic globe valve according to claim 1, it is characterised in that: valve plug (33) outer wall is uniformly bonded with Rubber spacer.

5. a kind of cryogenic globe valve according to claim 1, it is characterised in that: guide pipe (3) inner wall uniformly opens up There is the screw thread of matching thread bar (25), the guide pipe (3) moves up and down with the rotation of threaded rod (25).