CN114576390B

CN114576390B - Stop valve

Info

Publication number: CN114576390B
Application number: CN202210110595.0A
Authority: CN
Inventors: 韩欣霖; 韩正东; 韩雪萍; 万书君; 郭琰林; 吴晗; 陈开封; 何大勇; 宋桂琴; 陈辉
Original assignee: Jiangsu Suyan Valve Machinery Co Ltd
Current assignee: Jiangsu Suyan Valve Machinery Co Ltd
Priority date: 2022-01-29
Filing date: 2022-01-29
Publication date: 2022-11-25
Anticipated expiration: 2042-01-29
Also published as: CN114576390A

Abstract

The invention relates to a valve, in particular to a stop valve, which comprises a four-way main body with four passages, namely an upper passage, a lower passage, a left passage, a right passage, an inner shoulder, a top cover, a sealing platform, a cylindrical valve body, an arc-shaped valve body and a main column, wherein the inner shoulder is arranged on the passage below the four-way main body, the top cover is detachably and fixedly connected to the upper end of the four-way main body, the sealing platform is integrally connected to the upper end of the top cover, the cylindrical valve body is arranged above the inner shoulder and used for sealing or opening the passage below, the arc-shaped valve body is detachably and fixedly connected to the cylindrical valve body and used for sealing or opening the passages on the left side and the right side, the main column is fixedly connected to the upper end of the cylindrical valve body, the main column is attached to the inner wall of the sealing platform, and the conduction of any two passages in the three passages can be realized by controlling the cylindrical valve body and the arc-shaped valve body.

Description

Stop valve

Technical Field

The invention relates to a valve, in particular to a stop valve.

Background

The stop valve has the advantages of simple structure, small valve clack stroke during opening and closing, short opening and closing time and small valve height. But the fluid resistance is large, the medium channel in the valve body is relatively tortuous, and the energy consumption is large. The opening and closing moment is large, and the opening and closing are laborious. When the valve is closed, because the movement direction of the valve clack is opposite to the action direction of the medium pressure, the movement of the valve clack must overcome the action force of the medium, so the opening and closing moment is large, and the multi-channel flexible adjustment cannot be realized.

Disclosure of Invention

The invention provides a stop valve, aiming at communicating any two of three passages.

The above purpose is realized by the following technical scheme:

the utility model provides a stop valve, is including having the cross main part of four passageways about from top to bottom to and set up the interior shoulder on cross main part below passageway, and can dismantle the top cap of rigid coupling in cross main part upper end, and a body coupling is at the platform of sealing of top cap upper end, and set up the cylindricality valve body that is used for the shutoff or opens the below passageway above the interior shoulder, and can dismantle the rigid coupling and be used for the shutoff or open the arc shape valve body in left and right sides passageway on the cylindricality valve body, and the principal post of rigid coupling in the cylindricality valve body upper end, the principal post is laminated with the inner wall of sealing the platform.

Drawings

FIG. 1 shows the overall structure of a shut-off valve according to the present invention;

FIG. 2 shows the internal structure of FIG. 1;

FIG. 3 shows a four-way body and an internal shoulder;

FIGS. 4 and 5 show the top cover, seal land, seal ring, press wall and locating hole;

FIGS. 6 and 7 show a cylindrical valve body, an arc plate valve body, a main column, a stepped valve body, studs and a stack of pipes;

FIG. 8 shows a base plate, a straight rod, a tab and a compression spring;

FIG. 9 shows the power pushrod, ring mount, rollers, and step cover;

FIG. 10 shows a base wall, paddle arm, and positioning rod;

FIG. 11 shows a recovery tank, connecting walls and lid;

figure 12 shows a jack rod.

Detailed Description

A stop valve, as shown in figures 1 to 8, comprises a four-way body 11, an inner shoulder 12, a top cover 21, a sealing platform 22, a cylindrical valve body 31, an arc-shaped valve body 32 and a main column 33;

the passage in the four-way main body 11 is in four directions, namely, up, down, left and right, to form a cross-shaped passage, the inner shoulder 12 is arranged on the inner wall of the four-way main body 11 and is positioned on the passage below, the top cover 21 is detachably and fixedly connected to the upper end of the four-way main body 11 through bolts, the sealing platform 22 is integrally connected to the upper end of the top cover 21, the cylindrical valve body 31 is arranged in the four-way main body 11 and is positioned above the inner shoulder 12, when the cylindrical valve body 31 descends and is attached to the upper end face of the inner shoulder 12, the passage below can be sealed, and when the cylindrical valve body 31 ascends and is separated from the upper end face of the inner shoulder 12, the passage below can be opened; the arc plate-shaped valve body 32 is detachably and fixedly connected to the cylindrical valve body 31, when the cylindrical valve body 31 rotates, the arc plate-shaped valve body 32 is positioned on the left side and used for plugging a passage on the left side, when the arc plate-shaped valve body 32 is positioned on the right side, the arc plate-shaped valve body 32 is positioned on the right side and used for plugging a passage on the right side, when the arc plate-shaped valve body 32 is positioned between the passages on the left side and the right side, the left passage and the right passage are both opened, and then the three-way and any two-way liquid running modes are realized by matching with the cylindrical valve body 31; the main column 33 is fixedly connected to the upper end of the cylindrical valve body 31, the main column 33 is attached to the inner wall of the sealing table 22 to achieve sealing, the main column 33 extends to the upper portion of the sealing table 22, the lifting or rotating of the cylindrical valve body 31 can be controlled by controlling the lifting or rotating of the main column 33, multifunctional operation can be achieved by using a single-rod fixed position, and the opening and closing moment of the arc-shaped valve body 32 is small.

As shown in fig. 9, the stop valve further comprises an electric push rod 41, a ring frame 42, a roller 43 and a step cover 44;

the step cover 44 is detachably and fixedly connected to the upper end of the main column 33, the stud 35 can penetrate through the step cover 44, the base of the electric push rod 41 is fixedly connected to the upper end of the top cover 21, the movable end of the electric push rod 41 is arranged upward, the ring frame 42 is fixedly connected to the upper end of the movable end of the electric push rod 41, a plurality of rollers 43 are arranged, rollers 43 are arranged on the upper side and the lower side of the step cover 44, and all the rollers 43 are abutted against the step cover 44;

when the electric push rod 41 is started, the ring frame 42 is driven to ascend and descend, the ring frame 42 drives the roller 43 to ascend and descend, the roller 43 drives the step cover 44 to ascend and descend, and the step cover 44 is used for driving the main column 33 to ascend and descend so as to control the ascending and descending of the cylindrical valve body 31 to open and close a passage below the cylindrical valve body.

As shown in fig. 10, the stop valve further includes a positioning hole 25, a base wall 51, a toggle arm 52 and a positioning rod 53;

the positioning holes 25 are arranged on the top cover 21, the number of the positioning holes is at least three, the base wall 51 is detachably and fixedly connected to the outer wall of the main column 33, the shifting arms 52 are integrally connected to the base wall 51, the positioning rods 53 vertically penetrate through the shifting arms 52, the positioning rods 53 can be inserted into the positioning holes 25 to achieve positioning of the arc plate-shaped valve body 32, the number of the positioning holes 25 is preferably four, the positioning holes are circumferentially and uniformly distributed, the positions of the four positioning holes 25 correspond to the positions of the arc plate-shaped valve body 32 and are located at the left passage, the right passage and the left passage, and flexible locking and starting of the arc plate-shaped valve body 32 are achieved.

As shown in fig. 2 and 5, the inner wall of the top cover 21 is provided with a shoulder portion, the shoulder portion is provided with a stepped sealing ring 23, the outer wall of the main column 33 is attached to the inner wall of the sealing ring 23, the sealing performance is further improved, and the sealing platform 22 is matched to realize double sealing.

Further, the interior terminal surface that seals platform 22 upper portion is equipped with the pressure wall 24 of a body coupling, pressure wall 24 supports so that sealing washer 23 deformation is in order to further laminate on the outer wall of principal post 33 in the outside of sealing washer 23 upper end, it is tighter more when sealing platform 22 is rotatory, double seal nature further increases, avoid leading to the effect poor after long because of maintaining or using, each partial structure of this application can be followed and removed from top to bottom in proper order, be convenient for change the accessory or maintain inside, realize controlling and the axial region of dismouting all above, require lowly to the installation environment, high durability and convenient use.

As shown in fig. 7, the stop valve further includes a step valve body 34, a stud 35 and a drain pipe 36;

the step valve body 34 and the stud 35 are fixedly connected to the upper end of the step valve body 34, the cylindrical valve body 31 and the main column 33 are of a hollow structure, one end of the exhaust pipe 36 is fixedly connected and communicated with the outer wall of the main column 33, an opening is formed in the lower end of the cylindrical valve body 31, the step valve body 34 is arranged in the cylindrical valve body 31 and located above the opening, the stud 35 is in threaded connection with the upper end of the main column 33, when the stud 35 rotates, the step valve body 34 can be controlled to lift to be attached to or separated from the inner wall of the bottom of the cylindrical valve body 31, so that the opening is opened or closed, and when the opening is opened, the exhaust pipe can discharge liquid in the four-way main body 11 for sampling detection; the opening and closing torque of the step valve body 34 is small.

The stop valve, still include the base plate 37 of rigid coupling in calandria 36 to and sliding connection is at the straight-bar 38 on the base plate 37, and the rigid coupling is on straight-bar 38 and be located the main column 33 in the other end be used for the shutoff piece 39 of shutoff calandria 36, and the compression spring 310 of suit on straight-bar 38, the both ends of compression spring 310 contact with base plate 37 and shutoff piece 39 respectively, inwards promote the shutoff piece 39 and can realize opening calandria 36 flowing back, cooperate step valve body 34 to be dual shutoff state at ordinary times.

As shown in fig. 11 and 12, the stop valve further includes a recovery tank 61, a connecting wall 62 fixedly connected and communicated with one end of the recovery tank 61, and a cover 63 screwed with the other end of the recovery tank 61, wherein the connecting wall 62 is screwed on the discharge pipe 36.

Further comprises a top rod 64 fixedly connected to the cover 63 and used for abutting against the blocking piece 39, the blocking piece 39 opens the calandria 36 when the connecting wall 62 is installed on the calandria 36, and the blocking piece 39 closes the calandria 36 when the connecting wall 62 is removed from the calandria 36;

in fig. 8, the stopper 39 is separated from the shoulder of the discharge pipe 36 due to the pushing of the push rod 64, and is kept in an open state, and only the opening needs to be opened and then closed again during sampling, and the recovery tank 61 is screwed off, and after sampling is finished, the sampling liquid remained in the cylindrical valve body 31 can be selectively discharged by controlling the opening and closing of the four passages.

Claims

1. A stop valve comprises a four-way main body (11) with four passages, namely an upper passage, a lower passage, a left passage and a right passage, an inner shoulder (12) arranged on the passage below the four-way main body (11), a top cover (21) detachably and fixedly connected to the upper end of the four-way main body (11), a sealing platform (22) integrally connected to the upper end of the top cover (21), a cylindrical valve body (31) arranged above the inner shoulder (12) and used for sealing or opening the lower passage, an arc plate-shaped valve body (32) detachably and fixedly connected to the cylindrical valve body (31) and used for sealing or opening the passages on the left side and the right side, and a main column (33) fixedly connected to the upper end of the cylindrical valve body (31), wherein the main column (33) is attached to the inner wall of the sealing platform (22);

the stop valve also comprises a step cover (44) detachably and fixedly connected to the upper end of the main column (33), an electric push rod (41) arranged at the upper end of the top cover (21), a ring frame (42) driven by the electric push rod (41) to lift, and at least two rollers (43) which are rotatably connected to the ring frame (42) and are positioned at the upper side and the lower side of the step cover (44), wherein the rollers (43) positioned at the upper side and the lower side are respectively contacted with the upper end and the lower end of the step cover (44);

the stop valve also comprises at least three positioning holes (25) arranged on the top cover (21), a base wall (51) detachably and fixedly connected to the outer wall of the main column (33), a shifting arm (52) arranged on the base wall (51), and a positioning rod (53) vertically penetrating through the shifting arm (52), wherein the positioning rod (53) can be inserted into the positioning holes (25) to position the arc-shaped plate-shaped valve body (32).

2. The stop valve of claim 1, the inner wall of the top cover (21) is provided with a shoulder, the shoulder is provided with a step-shaped sealing ring (23), and the outer wall of the main column (33) is attached to the inner wall of the sealing ring (23).

3. The shut-off valve as claimed in claim 2, the inner end face of the upper part of the sealing platform (22) is provided with an integrally connected pressing wall (24), the pressing wall (24) abuts against the outside of the upper end of the sealing ring (23).

4. The stop valve of claim 1, further comprising a step valve body (34) and a stud (35) fixedly connected to the upper end of the step valve body (34), wherein the cylindrical valve body (31) and the main column (33) are hollow structures, one end of the discharge pipe (36) is fixedly connected to and communicated with the outer wall of the main column (33), an opening is formed in the lower end of the cylindrical valve body (31), the step valve body (34) is arranged in the cylindrical valve body (31) and can block or open the opening, and the stud (35) is in threaded connection with the upper end of the main column (33).

5. The shut-off valve according to claim 4, further comprising a base plate (37) fixed in the drain pipe (36), a straight rod (38) slidably connected to the base plate (37), a blocking piece (39) fixed on the straight rod (38) and located at the other end in the main column (33) for blocking the drain pipe (36), and a compression spring (310) sleeved on the straight rod (38), wherein two ends of the compression spring (310) are respectively in contact with the base plate (37) and the blocking piece (39).

6. The stop valve according to claim 5, further comprising a recovery tank (61), a connecting wall (62) fixedly connected and communicated with one end of the recovery tank (61), and a cover (63) detachably connected with the other end of the recovery tank (61), wherein the connecting wall (62) is screwed on the drain pipe (36).

7. The shut-off valve of claim 6, further comprising a push rod (64) fixed to the cover (63) for abutting against the shutter (39), the shutter (39) opening the drain pipe (36) when the connecting wall (62) is mounted on the drain pipe (36), the shutter (39) closing the drain pipe (36) when the connecting wall (62) is removed from the drain pipe (36).

8. The shut-off valve of claim 7, the cap (63) being threadably connected to the recovery tank (61).