CN219588222U - Plane sealing flange stop valve - Google Patents

Abstract

The utility model discloses a plane sealing flange stop valve which comprises a valve body, wherein connecting pipes are fixedly connected to the middle positions of two sides of the valve body in a penetrating manner, a packing pressing sleeve is fixedly connected to the middle position of the top of the valve body in a penetrating manner, connecting flanges are fixedly connected to the outer walls of two opposite sides of the connecting pipes, threaded holes which are uniformly distributed are formed in the outer walls of the connecting flanges in a penetrating manner, loose joint bolts are connected to the inner walls of the threaded holes in a penetrating manner in a threaded manner, uniformly distributed fastening bolts are fixedly connected to the top of the packing pressing sleeve, a packing pressing plate is arranged at the top of the packing pressing sleeve, and packing is arranged in the packing pressing sleeve. According to the utility model, through linkage among the packing pressing sleeve, the fastening nut, the fastening bolt and the packing pressing plate, packing can be quickly replaced when packing in the device needs to be replaced, and the problem that a traditional packing replacing procedure is complicated is solved.

Description

Plane sealing flange stop valve

Technical Field

The utility model relates to the technical field of stop valves, in particular to a planar sealing flange stop valve.

Background

Flange shut-off valves are forced-seal valves, so that when the valve is closed, pressure must be applied to the valve flap to force the sealing surface against leakage. When the medium enters the valve six from the lower part of the valve clack, the resistance which needs to be overcome by the operation force is the friction force of the valve rod and the filler and the thrust generated by the pressure of the medium, the valve closing force is larger than the valve opening force, so the diameter of the valve rod is larger, otherwise, the valve rod is in a bending fault, in recent years, after the self-sealing valve appears, the medium flow direction of the flange stop valve is changed from the upper part of the valve clack to enter the valve cavity, at the moment, the valve closing force is small under the pressure of the medium, the valve opening force is large, and the diameter of the valve rod can be correspondingly reduced. At the same time, under the action of the medium, the valve in the form is also tighter.

Most of the prior stop valves wear the filler in the application process for a long time, but the prior flange stop valves have complicated and troublesome procedures when the filler is replaced, and meanwhile, after the filler, the situation that the valve body is not tightly sealed enough occurs, so the prior flange stop valves need to be improved.

Disclosure of Invention

The utility model aims to solve the defects in the prior art, and provides a plane sealing flange stop valve.

In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides a plane seal flange stop valve, includes the valve body, all run through and fixedly connected with connecting pipe on the both sides intermediate position of valve body, run through and fixedly connected with packing press the cover on the top intermediate position of valve body, two equal fixedly connected with flange of connecting pipe opposite side outer wall, flange's outer wall all runs through and is provided with evenly distributed's screw hole, the inner wall of screw hole all runs through and threaded connection has loose joint bolt, packing press the top fixedly connected with evenly distributed's fastening bolt of cover, packing presses the top of cover to be provided with the packing clamp plate, packing presses the inside of cover to be provided with the packing, packing clamp plate's top fixedly connected with fixed block, run through and be connected with the hand wheel on the inner wall intermediate position of fixed block, the front end fixedly connected with valve rod of hand wheel, the top outer wall intermediate position of valve rod runs through and fixedly connected with stopper, the front end fixedly connected with lid of valve rod, the front end fixedly connected with valve clack of valve clack lid.

As a further description of the above technical solution:

the outer walls of the loose joint bolts penetrate through and are connected with loose joint nuts in a threaded mode.

As a further description of the above technical solution:

the front ends of the fastening bolts penetrate through the packing pressing plate and are connected in a sliding mode.

As a further description of the above technical solution:

the outer wall of the fastening bolt penetrates through and is in threaded connection with a fastening nut.

As a further description of the above technical solution:

the front end of the valve rod penetrates through the fixed block, the filler and the valve body and is connected with the valve body in a rotating mode.

As a further description of the above technical solution:

and sealing rings are arranged on the inner walls of the two connecting flanges.

The utility model has the following beneficial effects:

according to the utility model, firstly, through the linkage between the loose joint bolt and the loose joint nut, the device can be installed and fixed when the device is used, and meanwhile, through the linkage among the packing pressing sleeve, the fastening nut, the fastening bolt and the packing pressing plate, when packing in the device is required to be replaced, the packing pressing sleeve and the packing pressing plate can be quickly replaced, and the packing pressing sleeve and the packing pressing plate are fastened and connected through the fastening bolt and the fastening nut, so that the packing can be damaged to a certain extent, the sealing performance of the valve can be ensured, and the problems that the conventional packing replacement procedure is complicated and the sealing of the valve body is not tight are solved.

Drawings

FIG. 1 is a perspective view of a planar sealing flange stop valve according to the present utility model;

fig. 2 is an exploded view of a planar sealing flange stop valve according to the present utility model.

Legend description:

1. a valve body; 2. a connecting pipe; 3. a connecting flange; 4. a fastening nut; 5. a packing pressing plate; 6. a hand wheel; 7. a fixed block; 8. a fastening bolt; 9. packing pressing sleeve; 10. a loose joint bolt; 11. a loose joint nut; 12. a seal ring; 13. a filler; 14. a valve flap; 15. a limiting block; 16. a valve stem; 17. a valve flap cover; 18. and (3) a threaded 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. 1-2, one embodiment provided by the present utility model is: a plane sealing flange stop valve comprises a valve body 1, connecting pipes 2 are fixedly connected and penetrated in the middle positions of two sides of the valve body 1, a packing pressing sleeve 9 is fixedly connected and penetrated in the middle position of the top of the valve body 1, connecting flanges 3 are fixedly connected and penetrated on the outer walls of two opposite sides of the two connecting pipes 2, uniformly distributed threaded holes 18 are formed in the outer walls of the connecting flanges 3, movable joint bolts 10 are fixedly connected and penetrated and screwed on the inner walls of the threaded holes 18, uniformly distributed fastening bolts 8 are fixedly connected and penetrated and screwed on the top of the packing pressing sleeve 9, a packing pressing plate 5 is arranged on the top of the packing pressing sleeve 9, packing 13 is arranged in the packing pressing sleeve 9, a fixing block 7 is fixedly connected and penetrated and screwed on the top of the packing pressing plate 5, when the valve needs to be closed, a hand wheel 6 is reversed, a valve clack cover 17 drives a valve clack 14 downwards to block water flow and gas, when the packing is required to be replaced, the packing pressing plate 5 and the packing pressing sleeve 9 are separated by only screwing the fastening nut 4 out of the fastening bolt 8, meanwhile, the packing 13 in the packing pressing sleeve 9 is replaced, the hand wheel 6 is penetrated and rotationally connected in the middle position of the inner wall of the fixed block 7, when the device is used, water flow or gas is poured into the valve body 1 from the connecting pipe 2, the hand wheel 6 is rotated, the valve rod 16 fixed at the front end of the hand wheel 6 is rotated along with the hand wheel 6 in the process of rotating the hand wheel 6, the valve clack cover 17 correspondingly drives the front end of the valve rod 16 to move upwards through the connection between the hand wheel 6 and the fixed block 7, the valve clack 14 correspondingly drives the front end of the valve clack cover 17 to move, the water flow or gas is transmitted in the valve body 1, the front end of the hand wheel 6 is fixedly connected with the valve rod 16, the middle position of the upper outer wall of the valve rod 16 penetrates through and is fixedly connected with a limiting block 15, the front end of the valve rod 16 is fixedly connected with a valve clack cover 17, and the front end of the valve clack cover 17 is fixedly connected with a valve clack 14.

The outer wall of the loose joint bolt 10 is penetrated and is in threaded connection with a loose joint nut 11, the connecting flanges 3 at two ends of the connecting pipe 2 are placed at positions to be installed, meanwhile, the device is installed and fixed through threaded connection between the loose joint bolt 10 and the loose joint nut 11, the front ends of the fastening bolts 8 are penetrated and connected with the packing pressing plate 5 in a sliding mode, the outer wall of the fastening bolts 8 are penetrated and are in threaded connection with the fastening nuts 4, the front ends of the valve rods 16 penetrate 7, the packing pressing plate 5, the packing 13 and the valve body 1 in a rotating mode, and sealing rings 12 are arranged on the inner walls of the two connecting flanges 3.

Working principle: firstly, when the device is used, the connecting flanges 3 at two ends of the connecting pipe 2 are placed at the positions to be installed, meanwhile, the device is installed and fixed through the threaded connection between the loose joint bolts 10 and the loose joint nuts 11, when the device is used, water flow or gas is poured into the valve body 1 from the connecting pipe 2, by rotating the hand wheel 6, in the process of rotating the hand wheel 6, the valve rod 16 fixed at the front end of the hand wheel 6 rotates along with the hand wheel 6, through the connection between the hand wheel 6 and the fixed block 7, the valve clack cover 17 correspondingly drives the front end of the valve rod 16 to move upwards, and meanwhile, the valve clack 14 correspondingly drives the front end of the valve clack cover 17 to move, so that water flow or gas is transmitted in the valve body 1, when the valve is required to be closed, the hand wheel 6 is reversed, the valve clack cover 17 drives the valve clack 14 downwards to block the water flow and the gas, when the packing 13 is required to be replaced, only the fastening 4 is screwed out of the fastening bolt 8, the packing pressing plate 5 and the packing pressing sleeve 9 are separated, and simultaneously, the valve 13 in the packing pressing sleeve 9 is required to be replaced, the valve 13 can be worn and the sealing sleeve 13 can be prevented from being worn and damaged by the fastening nut 8, and the sealing sleeve 13 can be guaranteed, and the sealing sleeve 13 can be worn and damaged by the sealing nut can be well when the valve is not be well found by the fastening bolt 8.

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 (6)

1. The utility model provides a plane sealing flange stop valve, includes valve body (1), its characterized in that: the valve is characterized in that connecting pipes (2) are fixedly connected to the middle positions of the two sides of the valve body (1), packing pressing sleeves (9) are fixedly connected to the middle positions of the tops of the valve body (1), two connecting pipes (2) are fixedly connected with connecting flanges (3) on the outer walls of opposite sides, threaded holes (18) are uniformly distributed in the middle positions of the outer walls of the connecting flanges (3), movable connecting bolts (10) are fixedly connected to the inner walls of the threaded holes (18), fastening bolts (8) are uniformly distributed in the middle positions of the tops of the packing pressing sleeves (9), packing pressing plates (5) are arranged at the tops of the packing pressing sleeves (9), packing (13) are arranged inside the packing pressing sleeves (9), fixing blocks (7) are fixedly connected to the tops of the packing pressing plates (5), hand wheels (6) are fixedly connected to the middle positions of the inner walls of the fixing blocks in a penetrating and rotating mode, valve rods (16) are fixedly connected to the front ends of the hand wheels (6), limiting blocks (15) are fixedly connected to the middle positions of the upper outer walls of the hand wheels (16), and the front ends of the valve clack (17) are fixedly connected to the front ends of the valve clacks (17).

2. A planar sealing flange shut-off valve according to claim 1, wherein: the outer walls of the loose joint bolts (10) are penetrated through and are connected with loose joint nuts (11) in a threaded mode.

3. A planar sealing flange shut-off valve according to claim 1, wherein: the front ends of the fastening bolts (8) penetrate through the packing pressing plate (5) and are connected in a sliding mode.

4. A planar sealing flange shut-off valve according to claim 1, wherein: the outer walls of the fastening bolts (8) are all penetrated and connected with fastening nuts (4) in a threaded manner.

5. A planar sealing flange shut-off valve according to claim 1, wherein: the front end of the valve rod (16) penetrates through the fixed block (7), the packing pressing plate (5), the packing (13) and the valve body (1) and is connected in a rotating mode.

6. A planar sealing flange shut-off valve according to claim 1, wherein: the inner walls of the two connecting flanges (3) are provided with sealing rings (12).