CN219639484U - Rising stem soft sealing gate valve - Google Patents

Abstract

The utility model discloses a rising stem soft sealing type gate valve, which comprises a valve seat, wherein the inner diameter of the valve seat is fixedly connected with two sealing rings, the center of the inner wall of the valve seat is connected with a gate plate in a sliding manner, the top of the gate plate is penetrated and fixedly connected with a nut, the inner diameter of the nut is in threaded connection with a valve rod, a lower bearing is fixedly connected to the middle lower position of the outer diameter of the valve rod, the top of the lower bearing is provided with a filler, the top of the filler is provided with a filler gland, the top of the valve seat is provided with a sealing gasket, the top of the valve seat is provided with a valve cover, and the center position of the top of the valve cover is penetrated and fixedly connected with an upper bearing. According to the utility model, the position of the slide plate can be observed, so that the position of the flashboard can be observed, meanwhile, the top of the valve cover is provided with two air cylinders, the output ends of the air cylinders are propped against the top of the slide plate below, and the hand wheel can not rotate by fixing the position of the slide plate, so that the gate valve is prevented from being opened by false touch.

Description

Rising stem soft sealing gate valve

Technical Field

The utility model relates to the technical field of valves, in particular to a rising stem soft sealing gate valve.

Background

In the production and living process, the valve is widely used for opening and closing pipelines, controlling flow direction, adjusting and controlling pipeline accessories of parameters (temperature, pressure and flow) of a conveying medium, the open-close piece of the open-close rod soft sealing gate valve is an industrial valve, the moving direction of the gate plate is vertical to the direction of fluid, the open-close rod soft sealing gate valve is required to be used for controlling materials in the pipeline transportation process, and the opening and closing of the material transmission are controlled, so that the open-close rod soft sealing gate valve is also applied in the pipeline transportation process.

At present, in order to ensure the stability and safety of substances or gases in pipeline transportation, a rising stem soft sealing gate valve is required to be used for cutting off or connecting a pipeline medium, but the existing rising stem soft sealing gate valve cannot monitor the position of a gate plate and has poor sealing performance when the gate valve is operated because the gate plate is arranged inside the gate valve, so that the rising stem soft sealing gate valve needs to be improved.

Disclosure of Invention

The utility model aims to solve the defects in the prior art and provides a rising stem soft sealing gate valve.

In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides a bright pole soft sealing type gate valve, includes the disk seat, disk seat internal diameter fixedly connected with two sealing washer, disk seat inner wall center sliding connection has the flashboard, flashboard top runs through and fixedly connected with nut, nut internal diameter threaded connection has the valve rod, lower position fixedly connected with lower bearing in the middle of the valve rod external diameter, lower bearing top is provided with the filler, the filler top is provided with gland, the disk seat top is provided with sealed the pad, the disk seat top is provided with the valve gap, valve gap top central point puts and runs through and fixedly connected with upper bearing, the equal fixedly connected with fixed strip of valve gap inboard left and right sides intermediate position, upper thread connection has the wiper in the middle of the valve rod external diameter, valve rod external diameter top fixedly connected with hand wheel, both ends top intermediate position all fixedly connected with cylinder around the valve gap, valve gap top four corners all runs through and is provided with the bolt.

As a further description of the above technical solution:

threads are arranged on the upper side and the lower side of the outer diameter of the valve rod, and the middle of the valve rod is a smooth outer diameter.

As a further description of the above technical solution:

the packing gland is in threaded connection with the valve cover, and the packing gland is in rotary connection with the valve rod.

As a further description of the above technical solution:

the middle of the outer diameter of the valve rod is connected with a sliding piece in an upward threaded manner, and the sliding piece is connected with the fixing strips on the two sides in a sliding manner.

As a further description of the above technical solution:

the bottom of the output end of the air cylinder can be propped against the sliding plate.

As a further description of the above technical solution:

the bolts penetrate through the sealing gasket and the valve seat, and are in threaded connection with the valve seat.

As a further description of the above technical solution:

the center positions of the left end and the right end of the valve seat are penetrated and provided with round holes which are uniformly distributed.

The utility model has the following beneficial effects:

1. according to the utility model, the valve cover is provided with the two fixing strips, the valve rod is connected with the sliding sheet in a threaded manner, the sliding sheet is in sliding connection with the fixing strips, the sliding sheet moves up and down through rotation of the valve rod, the exposed part of the valve rod is almost the same as the height of the flashboard, when the gate valve is closed, the sliding sheet is positioned at the bottom of the valve cover, and when the gate valve is opened to the maximum, the sliding sheet rises to the top, so that the position of the flashboard can be observed through observing the position of the sliding sheet.

2. According to the gate valve, the two sealing rings are fixed in the valve seat of the gate valve and positioned at the left side and the right side of the gate plate, when the gate plate is closed, the gate plate and the valve seat can be sealed, so that materials are prevented from leaking, meanwhile, the sealing gasket is arranged at the joint of the valve seat and the valve cover, and the packing gland are arranged in the valve cover, so that when the valve rod rotates, the gate valve is kept sealed, and the sealing performance of the gate valve is improved.

Drawings

Fig. 1 is a perspective view of a rising stem soft seal gate valve according to the present utility model;

FIG. 2 is a left side view of a rising stem soft seal gate valve according to the present utility model;

fig. 3 is an exploded view of a construction of a rising stem soft seal gate valve according to the present utility model.

Legend description:

1. a valve seat; 2. a seal ring; 3. a flashboard; 4. a nut; 5. a valve stem; 6. a lower bearing; 7. a filler; 8. a packing gland; 9. a sealing gasket; 10. a valve cover; 11. an upper bearing; 12. a fixing strip; 13. a slide sheet; 14. a hand wheel; 15. a cylinder; 16. a bolt; 17. and a round hole.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are based on directions or positional relationships shown in the drawings, are merely for convenience of description and simplification of description, and do not indicate or imply that the apparatus or element to be referred to must have a specific direction, be constructed and operated in the specific direction, and thus should not be construed as limiting the present utility model; the terms "first," "second," "third," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "coupled," and the like are to be construed broadly, and may be fixedly coupled, detachably coupled, or integrally coupled, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Referring to fig. 1-3, one embodiment provided by the present utility model is: a flexible sealing gate valve with a rising stem comprises a valve seat 1, wherein the inner diameter of the valve seat 1 is fixedly connected with two sealing rings 2, the sealing rings 2 are positioned at the left side and the right side of a gate plate 3, the center of the inner wall of the valve seat 1 is connected with the gate plate 3 in a sliding way, the gate plate 3 is an opening and closing piece of the gate valve, the top of the gate plate 3 is penetrated and fixedly connected with a nut 4, the nut 4 is cast aluminum brass or cast aluminum bronze, the hardness and strength are both larger than those of a valve rod 5, the inner diameter of the nut 4 is in threaded connection with the valve rod 5, the valve rod 5 is made of stainless steel, a lower bearing 6 is fixedly connected with the middle lower part of the outer diameter of the valve rod 5, the lower bearing 6 is fixedly connected with a valve cover 10, friction of the valve rod 5 is reduced, a filler 7 is arranged at the top of the lower bearing 6, the filler 7 is arranged, the gate valve is closed, leakage is prevented, a filler gland 8 is arranged at the top of the filler gland 8 and is used for fixing and pressing the filler 7, a sealing gasket 9 is arranged at the top of the valve seat 1, the sealing gasket 9 is located between the valve seat 1 and the valve cover 10, the valve cover 10 is made of cast iron, the center position of the top of the valve cover 10 penetrates through and is fixedly connected with an upper bearing 11, the inner diameter of the upper bearing 11 is fixedly connected with the valve rod 5, the upper bearing 11 is identical to the lower bearing 6 in function, fixing strips 12 are fixedly connected to the middle positions of the left side and the right side of the inner side of the valve cover 10, the fixing strips 12 are used for limiting the sliding sheet 13, the sliding sheet 13 is connected to the middle of the outer diameter of the valve rod 5 in an upper-deflection threaded manner, the position of the sliding sheet 13 is observed, the ascending degree of the flashboard 3 is obtained, the top of the outer diameter of the valve rod 5 is fixedly connected with a hand wheel 14, the valve rod 5 is rotated by screwing the hand wheel 14, air cylinders 15 are fixedly connected to the middle positions of the top of the front end and the rear end of the valve cover 10, and four corners of the top of the valve cover 10 are penetrated through and are provided with bolts 16.

The valve rod 5 external diameter upper and lower both sides all are provided with the screw thread, the centre is smooth external diameter, threaded connection between gland 8 and the valve gap 10, and threaded connection between gland 8 and the valve rod 5, through twisting gland 8 with packing 7 compaction, threaded connection has slider 13 in the middle of the valve rod 5 external diameter, and sliding connection between slider 13 and the fixed strip 12 of both sides, cylinder 15 output bottom can support on the slider 13, cylinder 15 output supports the slider 13 top of below, through the position of fixed slider 13, make hand wheel 14 can not rotate, prevent to touch open the gate valve by mistake, bolt 16 all runs through sealing pad 9, disk seat 1, and threaded connection between bolt 16 and the disk seat 1, disk seat 1 and valve gap 10 are connected through the bolt 16 in four corners, disk seat 1 both ends central point put all and run through and are provided with evenly distributed's round hole 17, install in the pipeline suitable position through the round hole 17 at disk seat 1 both ends about.

Working principle: firstly, the gate valve can be installed at a proper position of a pipeline through round holes 17 at the left end and the right end of the valve seat 1, the connection condition of the two ends and the pipeline is checked, the tightness of the gate valve can be ensured, then the gate valve can be produced normally, when the gate valve needs to be opened, the gate valve 5 is rotated by screwing a hand wheel 14 at the top, thereby the gate valve 5 and a nut 4 on a gate plate 3 in the valve seat 1 are rotated, the gate plate 3 is lifted, the bottom of the gate valve 5 enters the gate plate 3, the position of a sliding piece 13 can be observed, the lifting degree of the gate plate 3 is obtained, when materials are transmitted, the sealing gasket 9 at the joint of the valve seat 1 and a valve cover 10 and a filler 7 inside the valve cover 10 can be prevented from leaking, when the gate valve needs to be closed, the gate valve 5 is driven to rotate by screwing the hand wheel 14 reversely, the gate plate 3 is lowered, when the gate valve 3 cannot be completely closed, and meanwhile, the two air cylinders 15 at the top of the gate valve cover 10 are started, the output end of the air cylinder 15 is propped against the top of the sliding piece 13 below, and the sliding piece 13 is prevented from being opened by fixing the position of the sliding piece 13, and the friction between the upper bearing and the lower bearing 11 can be prevented from being opened by the method.

Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.

Claims (7)

1. The utility model provides a bright pole soft seal formula gate valve, includes disk seat (1), its characterized in that: valve disk (1) internal diameter fixedly connected with two sealing washer (2), valve disk (1) inner wall center sliding connection has flashboard (3), flashboard (3) top runs through and fixedly connected with nut (4), nut (4) internal diameter threaded connection has valve rod (5), lower bearing (6) are located down fixedly connected with in the middle of valve rod (5) external diameter, lower bearing (6) top is provided with filler (7), filler (7) top is provided with gland (8), valve disk (1) top is provided with sealed pad (9), valve disk (1) top is provided with valve gap (10), valve gap (10) top central point puts and runs through fixedly connected with upper bearing (11), equal fixedly connected with dead band (12) in valve gap (10) inboard left and right sides intermediate position, upper thread connection has sliding piece (13) in the middle of valve rod (5) external diameter top fixedly connected with cylinder (14), equal fixedly connected with air cylinder (15) in both ends top intermediate position around valve gap (10), valve gap (10) and four corners (16) are all set up.

2. A rising stem soft seal gate valve as defined in claim 1 wherein: threads are arranged on the upper side and the lower side of the outer diameter of the valve rod (5), and the middle is a smooth outer diameter.

3. A rising stem soft seal gate valve as defined in claim 1 wherein: the packing gland (8) is in threaded connection with the valve cover (10), and the packing gland (8) is in rotary connection with the valve rod (5).

4. A rising stem soft seal gate valve as defined in claim 1 wherein: the middle of the outer diameter of the valve rod (5) is in threaded connection with a sliding piece (13), and the sliding piece (13) is in sliding connection with the fixing strips (12) on two sides.

5. A rising stem soft seal gate valve as defined in claim 1 wherein: the bottom of the output end of the air cylinder (15) can be abutted against the sliding plate (13).

6. A rising stem soft seal gate valve as defined in claim 1 wherein: the bolts (16) penetrate through the sealing gasket (9) and the valve seat (1), and the bolts (16) are in threaded connection with the valve seat (1).

7. A rising stem soft seal gate valve as defined in claim 1 wherein: the center positions of the left end and the right end of the valve seat (1) are penetrated and provided with round holes (17) which are uniformly distributed.