CN210623587U

CN210623587U - Upper assembling type regulating valve

Info

Publication number: CN210623587U
Application number: CN201921548636.4U
Authority: CN
Inventors: 庄潇; 庄建; 戴利敏; 洪文清
Original assignee: Zhejiang Ruibang Control Valve Co Ltd
Current assignee: Zhejiang Ruibang Control Valve Co Ltd
Priority date: 2019-09-18
Filing date: 2019-09-18
Publication date: 2020-05-26
Anticipated expiration: 2029-09-18

Abstract

The utility model discloses a top-mounted regulating valve, which comprises a valve body, valve gap and valve rod, be provided with the valve pocket in the valve pocket, the position is provided with medium inflow passageway and medium outflow passageway below the valve pocket, outflow passageway right-hand member position an organic whole is provided with threaded joint, threaded joint goes up threaded connection has the extension pipe, extension pipe right-hand member an organic whole is provided with metal snakelike leather hose, metal snakelike leather hose deviates from extension pipe end an organic whole and is provided with loose flange, the valve body is located and puts between medium inflow passageway and the medium outflow passageway and be provided with the division board, medium inflow passageway upper right end is provided with first medium through-hole, medium outflow passageway upper left end is provided with second medium through-hole, be provided with the disc in the valve pocket. Above-mentioned technical scheme, structural design is reasonable, simple structure, low in manufacturing cost, need not the disk seat, sealing performance is good, noise at work is little, simple to operate and the practicality is good.

Description

Upper assembling type regulating valve

Technical Field

The utility model relates to a governing valve technical field, concretely relates to facial make-up governing valve.

Background

The regulating valve is also called a control valve, and in the field of industrial automation process control, the final control element for changing the process parameters of medium flow, pressure, temperature, liquid level and the like by power operation through receiving the control signal output by a regulating control unit. Generally consisting of an actuator and a valve. If according to the stroke characteristic, the regulating valve can be divided into a straight stroke and an angular stroke; the pneumatic regulating valve, the electric regulating valve and the hydraulic regulating valve can be divided into three types according to the power used by the matched executing mechanism; the method is divided into three types, namely a linear characteristic, an equal percentage characteristic and a parabolic characteristic according to functions and characteristics of the method. The regulating valve is suitable for air, water, steam, various corrosive media, slurry, oil and other media.

However, the existing regulating valve has unreasonable structure arrangement, complex structure, high manufacturing cost, easy abrasion of the valve seat, poor sealing performance, easy leakage, very troublesome replacement operation of the valve seat and high working noise; and the medium inlet and the medium outlet at both ends of the existing pneumatic regulating valve are fixed and cannot be regulated, so that the installation is inconvenient and the practicability is poor.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a top-mounted regulating valve that structural design is reasonable, simple structure, low in manufacturing cost, need not the disk seat, sealing performance is good, noise at work is little, simple to operate and practicality are good.

In order to achieve the above purpose, the utility model provides a following technical scheme: a top-mounted regulating valve comprises a valve body, a valve cover and a valve rod, wherein a valve cavity is arranged in the valve body, a medium inflow channel and a medium outflow channel are arranged at the position, below the valve cavity, of the valve body, a fixing flange is integrally arranged at the left end of the medium inflow channel of the valve body, and a medium inlet is axially arranged in the middle of the fixing flange; the valve body is integrally provided with a threaded connector at the right end of the medium outflow channel, an extension pipe is connected to the threaded connector in a threaded manner, a metal snakeskin pipe is integrally arranged at the right end of the extension pipe, a movable flange is integrally arranged at the end of the metal snakeskin pipe away from the extension pipe, and a medium outlet is axially arranged in the middle of the movable flange; the valve body is integrally provided with a partition plate between the medium inflow channel and the medium outflow channel, the upper right end of the medium inflow channel is provided with a first medium through hole, the upper left end of the medium outflow channel is provided with a second medium through hole, and the first medium through hole and the second medium through hole are both communicated with the valve cavity; the valve cavity is internally provided with a disc, an elastic sealing block is fixedly bonded on the lower end face of the disc, the upper end face of the disc is fixedly connected with the lower end of the valve rod, the disc is driven to lift through the valve rod, and sealing is formed between the elastic sealing block and the upper ports of the first medium through hole and the second medium through hole when the disc descends.

By adopting the technical scheme, the position of the medium outlet can be prolonged by the extension pipe, and the position of the medium outlet can be adjusted by bending the metal snakeskin pipe, so that the installation is convenient, and the application range is wide; the valve rod drives the disc to lift, when the disc descends, the elastic sealing block and the upper port of the first medium through hole and the upper port of the second medium through hole form sealing, the sealing performance is good, the elastic sealing block is convenient to replace, the valve seat is not needed for sealing, and the whole upper mounting type regulating valve is reasonable in structural design, simple in structure, low in manufacturing cost, good in sealing performance, small in working noise, convenient to install and good in practicability.

The utility model discloses further set up to: the valve cavity is of a cylindrical structure; the outer surface of the disc is provided with at least one annular groove, a first O-shaped sealing ring is sleeved in each annular groove, and the disc is sealed with the inner wall surface of the valve cavity through the first O-shaped sealing ring. Through this setting, the structure sets up more rationally, and sealing performance is good between the internal face of surface and the valve pocket of disc, job stabilization.

The utility model discloses still further set up to: a first limiting convex ring is integrally arranged at the upper port of the first medium through hole; and a second limiting convex ring is integrally arranged at the upper port of the second medium through hole. Through this setting, first spacing bulge loop and second spacing bulge loop can make the lower terminal surface of elastic seal piece aim at each spacing bulge loop position indent for sealing performance is better.

The utility model discloses still further set up to: the thickness of the elastic sealing block is 2-10mm, and the thickness of the first limiting convex ring and the thickness of the second limiting convex ring are both 1-2 mm.

The utility model discloses still further set up to: the valve cover is fixedly connected with the upper end of the valve body through a screw; the vertical screw hole that is provided with in valve gap middle part, the valve rod upper end is provided with the external screw thread, and valve rod upper end and screw hole threaded connection, the cover is equipped with valve rod seal circle on the valve rod, valve rod seal circle's up end and the lower terminal surface bonding of valve gap are fixed, and the valve rod passes through and constitutes sealedly between valve rod seal circle and the valve gap.

The utility model discloses still further set up to: the threaded joint is arranged at the left end of the extension pipe, a second O-shaped sealing ring is sleeved on the threaded joint, the second O-shaped sealing ring is compressed when the extension pipe is screwed, and the connection part of the extension pipe and the threaded joint is sealed through the second O-shaped sealing ring.

The utility model has the advantages that: compared with the prior art, the utility model has more reasonable structure, the extension pipe can extend the position of the medium outlet, and the position of the medium outlet can be adjusted by bending the metal snakeskin pipe, thus having convenient installation and wide application range; the valve rod drives the disc to lift, when the disc descends, the elastic sealing block and the upper port of the first medium through hole and the upper port of the second medium through hole form sealing, the sealing performance is good, the elastic sealing block is convenient to replace, the valve seat is not needed for sealing, and the whole upper mounting type regulating valve is reasonable in structural design, simple in structure, low in manufacturing cost, good in sealing performance, small in working noise, convenient to install and good in practicability.

The invention is further described with reference to the drawings and the specific embodiments.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

fig. 2 is an enlarged schematic view of a portion I in fig. 1.

Detailed Description

In the description of the present embodiment, it should be noted that, as the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "front", "rear", etc. appear, the indicated orientation or positional relationship thereof is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" as appearing herein are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Referring to fig. 1 and 2, the utility model discloses a top-mounted regulating valve, which comprises a valve body 1, a valve cover 2 and a valve rod 3, wherein a valve cavity 11 is arranged in the valve body 1, a medium inflow channel 12 and a medium outflow channel 13 are arranged at the position of the valve body 1 below the valve cavity 11, a fixed flange 14 is integrally arranged at the left end of the medium inflow channel 12 of the valve body 1, and a medium inlet 141 is axially arranged at the middle part of the fixed flange 14; a threaded connector 15 is integrally arranged at the right end of the medium outflow channel 13 of the valve body 1, an extension pipe 4 is connected to the threaded connector 15 in a threaded manner, a metal bellows pipe 5 is integrally arranged at the right end of the extension pipe 4, a movable flange 6 is integrally arranged at the end, away from the extension pipe, of the metal bellows pipe 5, and a medium outlet 61 is axially arranged in the middle of the movable flange 6; a partition plate 16 is integrally arranged between the medium inflow channel 12 and the medium outflow channel 13 of the valve body 1, a first medium through hole 17 is arranged at the upper right end of the medium inflow channel 12, a second medium through hole 18 is arranged at the upper left end of the medium outflow channel 13, and the first medium through hole 17 and the second medium through hole 18 are both communicated with the valve cavity 11; a disc 19 is arranged in the valve cavity 11, an elastic sealing block 20 is fixedly bonded on the lower end face of the disc 19, the upper end face of the disc 19 is fixedly connected with the lower end of the valve rod 3, the disc 19 is driven to lift through the valve rod 3, and when the disc 19 descends, the elastic sealing block 20 forms sealing with the upper ports of the first medium through hole 17 and the second medium through hole 18.

Preferably, the valve rod 3, the extension pipe 4, the metal bellows 5, the movable flange 6 and the disc 19 are all made of stainless steel material; the upper end surface of the disc 19 is welded and fixed with the lower end of the valve rod 3; the extension pipe 4, the metal snakeskin pipe 5 and the movable flange 6 are integrally arranged; the elastic sealing block 20 is a cylindrical structure, and the elastic sealing block 20 is made of a rubber material or a polytetrafluoroethylene material. The upper end face of the elastic sealing block 20 is fixedly bonded with the lower end face of the disc 19 through the existing glass cement or nail-free cement; in addition, the elastic sealing block 20 and the lower end of the disc 19 can also be connected and fixed in a threaded manner.

In order to make the mechanism of the present invention more reasonable, preferably, the valve chamber 11 of the present embodiment is a cylindrical structure; the outer surface of the disc 19 is provided with at least one annular groove 191, a first O-shaped sealing ring 192 is sleeved in each annular groove 191, and the disc 19 forms a seal with the inner wall surface of the valve cavity 11 through the first O-shaped sealing ring 192.

A first limiting convex ring is integrally arranged at the upper port of the first medium through hole 17; and a second limiting convex ring is integrally arranged at the upper port of the second medium through hole 18.

The thickness of the elastic sealing block 20 is 2-10mm, and the thickness of the first limiting convex ring and the thickness of the second limiting convex ring are both 1-2 mm.

The valve cover 2 is fixedly connected with the upper end of the valve body 1 through a screw; the vertical screw hole 21 that is provided with in middle part of

valve gap

2, 3 upper ends of valve rod are provided with the external screw thread, and 3 upper ends of valve rod and screw hole 21 threaded connection, the cover is equipped with valve rod seal 22 on the valve rod 3, the up end of valve rod seal 21 and the lower terminal surface of valve gap 2 bond fixedly, and it is sealed that valve rod 3 passes through to constitute between valve rod seal 22 and the valve gap 2.

The threaded joint 15 is arranged at the left end of the extension pipe 4, a second O-shaped sealing ring 23 is sleeved on the left end of the extension pipe 4, the second O-shaped sealing ring 23 is pressed when the extension pipe 4 is screwed tightly, and the connection part of the extension pipe 4 and the threaded joint 15 is sealed through the second O-shaped sealing ring 23.

In practical application, the extension pipe can extend the position of the medium outlet, and the position of the medium outlet can be adjusted by bending the metal snakeskin pipe, so that the installation is convenient, and the application range is wide; the valve rod drives the disc to lift, when the disc descends, the elastic sealing block and the upper port of the first medium through hole and the upper port of the second medium through hole form sealing, the sealing performance is good, the elastic sealing block is convenient to replace, the valve seat is not needed for sealing, and the whole upper mounting type regulating valve is reasonable in structural design, simple in structure, low in manufacturing cost, good in sealing performance, small in working noise, convenient to install and good in practicability.

The above embodiments are only used for further explanation of the present invention, and it is not understood that the present invention is limited by the protection scope of the present invention, and the technical engineers in the field are right according to the above contents of the present invention.

Claims

1. The utility model provides a top-mounted governing valve, includes valve body (1), valve gap (2) and valve rod (3), be provided with valve pocket (11), its characterized in that in valve body (1): a medium inflow channel (12) and a medium outflow channel (13) are arranged at the position, below the valve cavity (11), of the valve body (1), a fixed flange (14) is integrally arranged at the left end of the medium inflow channel (12) of the valve body (1), and a medium inlet (141) is axially arranged in the middle of the fixed flange (14); a threaded connector (15) is integrally arranged at the right end of the medium outflow channel (13) of the valve body (1), an extension pipe (4) is connected to the threaded connector (15) in a threaded manner, a metal bellows pipe (5) is integrally arranged at the right end of the extension pipe (4), a movable flange (6) is integrally arranged on the end, away from the extension pipe, of the metal bellows pipe (5), and a medium outlet (61) is axially arranged in the middle of the movable flange (6); a partition plate (16) is integrally arranged between the medium inflow channel (12) and the medium outflow channel (13) of the valve body (1), a first medium through hole (17) is formed in the upper right end of the medium inflow channel (12), a second medium through hole (18) is formed in the upper left end of the medium outflow channel (13), and the first medium through hole (17) and the second medium through hole (18) are communicated with the valve cavity (11); a disc (19) is arranged in the valve cavity (11), an elastic sealing block (20) is fixedly bonded on the lower end face of the disc (19), the upper end face of the disc (19) is fixedly connected with the lower end of the valve rod (3), the disc (19) is driven to lift through the valve rod (3), and sealing is formed between the elastic sealing block (20) and the upper ports of the first medium through hole (17) and the second medium through hole (18) when the disc (19) descends.

2. A top-loading regulator valve as defined in claim 1 wherein: the valve cavity (11) is of a cylindrical structure; the outer surface of the disc (19) is at least provided with one annular groove (191), a first O-shaped sealing ring (192) is sleeved in each annular groove (191), and the disc (19) is sealed with the inner wall surface of the valve cavity (11) through the first O-shaped sealing ring (192).

3. A top-loading regulator valve as defined in claim 2 wherein: a first limiting convex ring is integrally arranged at the upper port of the first medium through hole (17); and a second limiting convex ring is integrally arranged at the upper port of the second medium through hole (18).

4. A top-loading regulator valve according to claim 3 wherein: the thickness of the elastic sealing block (20) is 2-10mm, and the thickness of the first limiting convex ring and the thickness of the second limiting convex ring are both 1-2 mm.

5. The upper mount regulator valve according to claim 4, wherein: the valve cover (2) is fixedly connected with the upper end of the valve body (1) through a screw; valve gap (2) middle part is vertical to be provided with screw hole (21), valve rod (3) upper end is provided with the external screw thread, and valve rod (3) upper end and screw hole (21) threaded connection, the cover is equipped with valve rod seal circle (22) on valve rod (3), the up end of valve rod seal circle (22) bonds fixedly with the lower terminal surface of valve gap (2), and it is sealed that valve rod (3) pass through to constitute between valve rod seal circle (22) and valve gap (2).

6. A top-loading regulator valve as defined in claim 1 wherein: the threaded joint (15) is located the left end position cover of extension pipe (4) and is equipped with second O type sealing washer (23), compress tightly second O type sealing washer (23) when extension pipe (4) are screwed, make extension pipe (4) and threaded joint (15) junction constitute sealed through second O type sealing washer (23).