CN216867516U

CN216867516U - Long service life's bellows stop valve

Info

Publication number: CN216867516U
Application number: CN202220174292.0U
Authority: CN
Inventors: 陈成; 武小双; 武宇; 程银珠; 武龙
Original assignee: Longguszhuang Machinery Jiangsu Co ltd
Current assignee: Longguszhuang Machinery Jiangsu Co ltd
Priority date: 2022-01-23
Filing date: 2022-01-23
Publication date: 2022-07-01
Anticipated expiration: 2032-01-23

Abstract

The utility model discloses a corrugated pipe stop valve with long service life, and relates to the technical field of stop valves. The valve comprises a valve body, wherein a first guide hole is formed in the center of the top of the valve body, the first guide hole is communicated with a water inlet and a water outlet which are formed in the left end and the right end of the valve body, a valve seat is fixedly connected to the bottom end of the inner wall of the first guide hole, a valve rod matched with the valve seat is arranged above the valve seat, a valve cover is fixedly connected to the top of the valve body, a second guide hole is formed in the top of the valve cover, a hand wheel is movably connected to the upper end of the valve cover, a groove is formed in the bottom of a central shaft of the hand wheel, a guide sleeve is fixedly connected to the inner wall of the groove, the top of the valve rod is located in the guide sleeve, and one end of the valve rod penetrates through the second guide hole and extends into the first guide hole; a protection mechanism is arranged in the first guide hole, and an anti-twisting mechanism is arranged between the hand wheel and the valve cover. According to the utility model, the valve clack and the valve seat structure are protected by arranging the protection mechanism and the anti-twisting mechanism, so that the service life of the stop valve is prolonged.

Description

Long service life's bellows stop valve

Technical Field

The utility model belongs to the technical field of stop valves, and particularly relates to a corrugated pipe stop valve with long service life.

Background

With the rapid development of social economy, the application range of the corrugated pipe is wider and wider, when the corrugated pipe is used, plugging and closure are required to be carried out through a stop valve, the stop valve is also called a gate valve and belongs to a forced sealing type valve, so when the valve is closed, pressure must be applied to a valve clack to force a sealing surface not to leak.

Present bellows stop valve drives valve rod and valve clack through rotating the hand wheel and advances to carry out the shutoff and dams in the use, and valve clack and disk seat contact collision when the valve rod is used for a long time cause the structural damage easily, and the power of turning on the valve is big than the power of rotating the hand wheel when closing the valve in addition, and the resistance of medium need be overcome to the operating force, and the trouble of valve rod kicking is probably taken place at this in-process, and we provide a long service life's bellows stop valve for this.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a corrugated pipe stop valve with long service life, which solves the problems that the valve rod and a valve clack are driven to carry out plugging and interception by rotating a hand wheel in the use process of the existing corrugated pipe stop valve, the valve clack is contacted and collided with a valve seat when the valve rod is used for a long time, the structure damage is easily caused, the force for rotating the hand wheel to close the valve is larger than the force for opening the valve, the operating force needs to overcome the resistance of a medium, and the valve rod buckling fault can occur in the process.

In order to solve the technical problems, the utility model is realized by the following technical scheme:

the utility model relates to a corrugated pipe stop valve with long service life, which comprises a valve body, wherein a first guide hole is formed in the center of the top of the valve body, the first guide hole is communicated with a water inlet and a water outlet which are formed in the left end and the right end of the valve body, the bottom end of the inner wall of the first guide hole is fixedly connected with a valve seat, a valve rod matched with the valve seat is arranged above the valve seat, the top of the valve body is fixedly connected with a valve cover, a second guide hole is formed in the top of the valve cover, a hand wheel is movably connected to the upper end of the valve cover, a groove is formed in the bottom of the central shaft of the hand wheel, a guide sleeve is fixedly connected to the inner wall of the groove, the top of the valve rod is positioned in the guide sleeve, and one end of the valve rod penetrates through the second guide hole and extends to the inside of the first guide hole; a protection mechanism is arranged in the first guide hole, an anti-twisting mechanism is arranged between the hand wheel and the valve cover, a second internal thread is fixedly arranged on the inner wall of the guide sleeve, a second external thread is fixedly arranged on one part of the peripheral side surface of the valve rod in the guide sleeve, and the second internal thread is matched with the second external thread;

the protection mechanism comprises a sealing sleeve, an elastic limiting ring and a ring seat, the sealing sleeve is fixedly arranged on the peripheral side surface of the valve rod, the sealing sleeve is positioned in the first guide hole, the elastic limiting ring is fixedly connected to the bottom of the sealing sleeve, the ring seat is arranged below the elastic limiting ring, the outer ring of the ring seat is fixedly connected to the inner wall of the first guide hole, the valve rod moves downwards and simultaneously drives the sealing sleeve to move downwards, and the elastic limiting ring is in contact with the ring seat;

prevent that buckling mechanism includes installing frame, limiting plate and connecting rod, the installing frame has two, fixed connection is on fixed column and valve bonnet respectively at the installing frame both ends, hand wheel center pin bottom swing joint has the primary shaft to hold, the rotation groove has been seted up at the fixed column top, primary shaft holds outer lane fixed connection on rotating the inslot wall, the installing frame has been close to and has been seted up the spacing groove on the valve rod side, spacing inslot portion swing joint has the limiting plate, installing frame one end fixedly connected with connecting rod is kept away from to the limiting plate, swing joint has the secondary shaft to hold to the side around the valve rod, and connecting rod one end fixed connection is on the secondary shaft holds the outer lane, drives the valve rod downstream through rotating the hand wheel, drives connecting rod and limiting plate simultaneously and moves along the spacing groove, carries out axial spacing to the valve rod.

Preferably, the valve body top week side goes up fixedly connected with first ring flange, fixedly connected with second ring flange on the valve bonnet bottom week side, first ring flange carries out fixed connection through the bolt with the second ring flange, is convenient for install and dismantle valve gap and valve body.

Preferably, the top of the first flange plate is provided with a groove, the bottom of the second flange plate is fixedly connected with an annular sealing gasket, the annular sealing gasket is matched with the groove in size, and the annular sealing gasket seals a gap between the first flange plate and the second flange plate.

Preferably, the corrugated pipe is fixedly connected to the peripheral side face of the valve rod and located inside the first guide hole, the inner wall of the first guide hole is fixedly provided with matched corrugations, the matched corrugations are matched with the corrugated pipe, and the corrugated pipe and the matched corrugations play a sealing role.

Preferably, the sealing sleeve is fixedly provided with a first external thread on the peripheral side face, a first internal thread is fixedly connected to the inner wall of the first guide hole, the first external thread is matched with the first internal thread, and the sealing sleeve is movably connected with the inner wall of the first guide hole through a thread.

Preferably, the bottom of the peripheral side face of the valve rod is fixedly connected with a valve clack, the valve clack is matched with the valve seat, and the valve is closed through the matching of the valve clack and the valve seat.

Preferably, the left end and the right end of the valve body are fixedly connected with connecting discs, and an external pipeline is installed through the connecting discs.

The utility model has the following beneficial effects:

1. according to the valve, the protection mechanism is arranged to protect the valve clack and the valve seat, the hand wheel is rotated to drive the guide sleeve to rotate, the valve rod moves downwards through the matching of second external threads arranged on the peripheral side surface of the valve rod and second internal threads arranged on the inner wall of the guide sleeve, the valve rod moves downwards and simultaneously drives the sealing sleeve to move downwards, the elastic limiting ring is firstly contacted with the ring seat, the elastic limiting ring has elasticity and is matched with the ring seat to buffer the downward movement force of the valve rod, the valve clack arranged on the peripheral side surface of the bottom of the valve rod slowly enters the valve seat to close the valve, and the valve clack is prevented from being damaged after being collided with the valve seat for a long time, so that the valve clack and the valve seat structure are protected;

2. according to the utility model, the valve rod is limited by arranging the anti-twisting mechanism, when the hand wheel is rotated to drive the valve rod to move downwards, the connecting rod arranged on the peripheral side surface of the valve rod drives the limiting plate to move along the inner part of the limiting groove arranged on the side surface of the mounting frame, the valve rod is limited axially, the acting force applied to the valve rod during movement is transmitted to the mounting frame through the connecting rod, the valve rod is prevented from being bent due to overlarge acting force during closing of the valve, and the service life of the stop valve is prolonged.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a perspective view of a long life bellows shut-off valve of the present invention;

FIG. 2 is a top view of a long life bellows shut-off valve of the present invention;

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2 of a long-life bellows stop valve of the present invention;

FIG. 4 is an enlarged view of a portion of a bellows stop valve of the present invention shown at B in FIG. 3;

FIG. 5 is an enlarged view of a portion of a bellows stop valve of the present invention shown at C in FIG. 3.

In the drawings, the components represented by the respective reference numerals are listed below:

1. a valve body; 2. a first guide hole; 3. a valve seat; 4. a valve stem; 5. a valve cover; 6. a second guide hole; 7. a hand wheel; 8. a guide sleeve; 9. sealing sleeves; 10. an elastic limit ring; 11. a ring seat; 12. installing a frame; 13. a limiting plate; 14. a connecting rod; 15. a first flange plate; 16. a second flange plate; 17. an annular seal; 18. a bellows; 19. a valve flap; 20. and (7) connecting the disc.

Detailed Description

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

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-5, the utility model relates to a corrugated pipe stop valve with long service life, which comprises a valve body 1, wherein a first guide hole 2 is formed in the center of the top of the valve body, the first guide hole 2 is communicated with a water inlet and a water outlet which are formed in the left end and the right end of the valve body 1, a valve seat 3 is fixedly connected to the bottom end of the inner wall of the first guide hole 2, a valve rod 4 matched with the valve seat 3 is arranged above the valve seat 3, a valve cover 5 is fixedly connected to the top of the valve body 1, a second guide hole 6 is formed in the top of the valve cover 5, a hand wheel 7 is movably connected to the upper end of the valve cover 5, a groove is formed in the bottom of the central shaft of the hand wheel 7, a guide sleeve 8 is fixedly connected to the inner wall of the groove, the top of the valve rod 4 is positioned in the guide sleeve 8, and one end of the valve rod 4 penetrates through the second guide hole 6 and extends into the first guide hole 2; a protection mechanism is arranged in the first guide hole 2, an anti-twisting mechanism is arranged between the hand wheel 7 and the valve cover 5, a second internal thread is fixedly arranged on the inner wall of the guide sleeve 8, a second external thread is fixedly arranged on one part of the circumferential side surface of the valve rod 4 positioned in the guide sleeve 8, and the second internal thread is matched with the second external thread, so that the valve rod 4 can move along the guide sleeve 8 conveniently;

the protection mechanism comprises a sealing sleeve 9, an elastic limiting ring 10 and a ring seat 11, the sealing sleeve 9 is fixedly arranged on the circumferential side surface of the valve rod 4, the sealing sleeve 9 is positioned in the first guide hole 2, the bottom of the sealing sleeve 9 is fixedly connected with the elastic limiting ring 10, the ring seat 11 is arranged below the elastic limiting ring 10, the outer ring of the ring seat 11 is fixedly connected to the inner wall of the first guide hole 2, the valve rod 4 moves downwards and simultaneously drives the sealing sleeve 9 to move downwards, and the elastic limiting ring 10 is in contact with the ring seat 11;

the anti-twisting mechanism comprises an installation frame 12, two limiting plates 13 and two connecting rods 14, wherein two installation frames 12 are provided, two ends of the installation frame 12 are respectively and fixedly connected to a fixed column and a valve cover 5, the bottom of a central shaft of a hand wheel 7 is movably connected with a first bearing, the top of the fixed column is provided with a rotating groove, an outer ring of the first bearing is fixedly connected to the inner wall of the rotating groove, one side surface of the installation frame 12 close to a valve rod 4 is provided with a limiting groove, the inner part of the limiting groove is movably connected with a limiting plate 13, one end of the limiting plate 13 far away from the installation frame 12 is fixedly connected with the connecting rod 14, the peripheral side surface of the valve rod 4 is movably connected with a second bearing, one end of the connecting rod 14 is fixedly connected to the outer ring of the second bearing, the valve rod 4 is driven to move downwards by rotating the hand wheel 7, and simultaneously the connecting rod 14 and the limit plate 13 are driven to move along the limit groove, the valve rod 4 is axially limited, and the acting force applied to the valve rod 4 during movement is transmitted to the mounting frame 12 through the connecting rod 14.

Wherein, fixedly connected with first ring flange 15 on the all sides of 1 top of valve body, fixedly connected with second ring flange 16 on the all sides of 5 bottoms of valve gap, first ring flange 15 carries out fixed connection through the bolt with second ring flange 16, is convenient for install and dismantle valve gap 5 and valve body 1, and the later stage of being convenient for is overhauld.

The top of the first flange plate 15 is provided with a groove, the bottom of the second flange plate 16 is fixedly connected with an annular sealing gasket 17, the annular sealing gasket 17 is matched with the groove in size, and the annular sealing gasket 17 seals a gap between the first flange plate 15 and the second flange plate 16, so that the sealing effect is good.

Wherein, fixedly connected with bellows 18 on the 4 week sides of valve rod, and bellows 18 is located inside first guiding hole 2, and fixed cooperation ripple that is provided with on the 2 inner walls of first guiding hole, cooperation ripple and bellows 18 phase-matchd, bellows 18 and cooperation ripple play sealed effect.

Wherein, the fixed first external screw thread that is provided with on 9 week side faces of seal cover, the first internal thread of fixedly connected with on 2 inner walls of first guiding hole, first external screw thread and first internal thread looks adaptation, seal cover 9 passes through screw thread and 2 inner walls swing joint of first guiding hole, make seal cover 9 remain the laminating state with 2 inner walls of first guiding hole all the time.

Wherein, valve rod 4 week side bottom fixedly connected with valve clack 19, valve clack 19 and disk seat 3 phase-match close the valve through valve clack 19 and disk seat 3 cooperation.

Wherein, the equal fixedly connected with connection pad 20 in both ends about valve body 1, carry out simple to operate swiftly to outside pipeline through connection pad 20.

The working principle of the utility model is as follows: when the valve needs to be closed, the hand wheel 7 is rotated to drive the guide sleeve 8 to rotate, the valve rod 4 moves downwards through the matching of second external threads arranged on the peripheral side surface of the valve rod 4 and second internal threads arranged on the inner wall of the guide sleeve 8, the valve rod 4 moves downwards and simultaneously drives the sealing sleeve 9 to move downwards, the elastic limiting ring 10 is firstly contacted with the ring seat 11, the elastic limiting ring 10 has elasticity and is matched with the ring seat 11 to buffer the downward movement force of the valve rod 4, the valve clack 19 arranged on the peripheral side surface of the bottom of the valve rod 4 slowly enters the valve seat 3 to close the valve, the damage caused after the valve clack 19 and the valve seat 3 collide with each other after long-time use is avoided, and therefore the structure of the valve clack 19 and the valve seat 3 is protected; when valve rod 4 moves down, connecting rod 14 that valve rod 4 week side was equipped with drives limiting plate 13 along the activity of the spacing inslot portion that installing frame 12 side was equipped with, carries out the axial to valve rod 4 spacing, and the effort that valve rod 4 received when the activity passes through connecting rod 14 and transmits to installing frame 12 on, because of the too big valve rod 4 top bend of effort when avoiding closing the valve, has prolonged the life of stop valve.

The foregoing shows and describes the general principles and features of the present invention, together with the advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a long service life's bellows stop valve which characterized in that: comprises a valve body (1), a first guide hole (2) is arranged at the center of the top of the valve body (1), the first guide hole (2) is communicated with a water inlet and a water outlet which are arranged at the left end and the right end of the valve body (1), a valve seat (3) is fixedly connected with the bottom end of the inner wall of the first guide hole (2), a valve rod (4) matched with the valve seat (3) is arranged above the valve seat (3), the top of the valve body (1) is fixedly connected with a valve cover (5), the top of the valve cover (5) is provided with a second guide hole (6), a hand wheel (7) is movably connected at the upper end of the valve cover (5), a groove is arranged at the bottom of the central shaft of the hand wheel (7), the inner wall of the groove is fixedly connected with a guide sleeve (8), the top of the valve rod (4) is positioned in the guide sleeve (8), one end of the valve rod (4) penetrates through the second guide hole (6) and extends into the first guide hole (2); a protection mechanism is arranged in the first guide hole (2), and an anti-twisting mechanism is arranged between the hand wheel (7) and the valve cover (5);

the protection mechanism comprises a sealing sleeve (9), an elastic limiting ring (10) and a ring seat (11), the sealing sleeve (9) is fixedly arranged on the peripheral side surface of the valve rod (4), the sealing sleeve (9) is positioned in the first guide hole (2), the elastic limiting ring (10) is fixedly connected to the bottom of the sealing sleeve (9), the ring seat (11) is arranged below the elastic limiting ring (10), and the outer ring of the ring seat (11) is fixedly connected to the inner wall of the first guide hole (2);

prevent distorting mechanism includes installing frame (12), limiting plate (13) and connecting rod (14), installing frame (12) has two, installing frame (12) both ends difference fixed connection is on fixed column and valve gap (5), hand wheel (7) center pin bottom swing joint has the primary shaft, the rotation groove has been seted up at the fixed column top, primary shaft outer lane fixed connection is on rotating the inslot wall, the spacing groove has been seted up on installing frame (12) is close to valve rod (4) a side, spacing inslot portion swing joint has limiting plate (13), installing frame (12) one end fixedly connected with connecting rod (14) are kept away from to limiting plate (13), swing joint has the secondary shaft on valve rod (4) week side, and connecting rod (14) one end fixed connection circles on the secondary shaft outer lane.

2. A long-life bellows stop valve according to claim 1, wherein a first flange (15) is fixedly connected to a peripheral side surface of a top end of the valve body (1), a second flange (16) is fixedly connected to a peripheral side surface of a bottom portion of the valve cover (5), and the first flange (15) and the second flange (16) are fixedly connected by bolts.

3. A long-life bellows stop valve according to claim 2, characterized in that a groove is formed at the top of the first flange (15), an annular gasket (17) is fixedly connected to the bottom of the second flange (16), and the annular gasket (17) is adapted to the size of the groove.

4. A long-life bellows stop valve according to claim 3, characterized in that the bellows (18) is fixedly connected to the peripheral side of the valve rod (4), the bellows (18) is located inside the first guiding hole (2), and the inner wall of the first guiding hole (2) is fixedly provided with matching corrugations which match with the bellows (18).

5. A long-service-life bellows stop valve according to claim 4, characterized in that a first external thread is fixedly arranged on the peripheral side of the sealing sleeve (9), a first internal thread is fixedly connected to the inner wall of the first guide hole (2), and the first external thread is matched with the first internal thread.

6. A long-service-life bellows stop valve according to claim 5, characterized in that a valve flap (19) is fixedly connected to the bottom of the peripheral side of the valve stem (4), and the valve flap (19) is matched with the valve seat (3).

7. The long-service-life bellows stop valve according to claim 1, characterized in that connecting discs (20) are fixedly connected to the left and right ends of the valve body (1).