CN217842734U - Flat-bottom discharge valve - Google Patents
Flat-bottom discharge valve Download PDFInfo
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- CN217842734U CN217842734U CN202222716422.1U CN202222716422U CN217842734U CN 217842734 U CN217842734 U CN 217842734U CN 202222716422 U CN202222716422 U CN 202222716422U CN 217842734 U CN217842734 U CN 217842734U
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- valve
- valve body
- flat bottom
- stuffing
- flexible graphite
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Abstract
The utility model relates to the technical field of industrial valves, in particular to a flat-bottom emptying valve, which comprises a flat bottom, a valve body and a packing box, wherein the flat bottom is fixed at the lower end of the valve body; the stuffing box is fixed on the upper end of the valve body. The utility model designs the stuffing box on the valve body, which can realize the small volume and compact structure of the valve body; the utility model discloses can realize changing the same kind of specification model for the national standard flange with the flange design of valve body junction, can exchange in the installation maintenance for the baiting valve is more standardized.
Description
Technical Field
The utility model relates to an industrial valve technical field, concretely relates to flat baiting valve.
Background
In the current industries of metallurgy, chemical industry, medicine, mine, ocean transportation and the like, the medium transportation is mainly realized by pipelines. The valve is used as a control element on the pipeline, and mainly plays a role in isolating equipment from the pipeline and controlling the circulation, the cut-off and the like of various media in a pipeline system. At present, the baiting valve used by equipment in the domestic alumina industry is not compact enough because the stuffing box is basically arranged on the bracket above, so that the valve body is large and heavy, has potential leakage points, and causes inconvenience in use.
SUMMERY OF THE UTILITY MODEL
The utility model discloses heavy, the inconvenient scheduling problem of use of present baiting valve body, a flat baiting valve has been proposed.
In order to achieve the purpose, the technical scheme adopted by the utility model is that, the flat-bottom discharge valve comprises a flat bottom, a valve body and a packing box, wherein the flat bottom is fixed at the lower end of the valve body, a groove is arranged between the flat bottom and the valve body, a valve seat is arranged in the groove, a valve rod is arranged in the valve body, an actuating mechanism is arranged at the upper end of the valve rod, a valve clack is fixed at the lower end of the valve rod, and the actuating mechanism can drive the valve rod to drive the valve clack to move up and down in the valve body, so that the valve clack is abutted against the valve seat or separated from the valve seat; the stuffing box is fixed at the upper end of the valve body. The stuffing box is designed on the valve body, so that the valve body is small in size and compact in structure.
Preferably, the packing box comprises a flexible graphite ring, a packing pressing sleeve and a packing pressing plate, the flexible graphite ring, the packing pressing sleeve and the packing pressing plate are sleeved on the outer side of the valve rod, the lower end of the flexible graphite ring is abutted to the inner wall of the valve body, the lower end of the packing pressing sleeve is abutted to the flexible graphite ring, the upper end of the packing pressing sleeve is abutted to the packing pressing plate, and the packing pressing plate can extrude the flexible graphite ring and the packing pressing sleeve.
Preferably, the stuffing box further comprises a fixing bolt, the stuffing pressing plate is provided with a fixing hole, the upper end of the valve body is provided with a bolt hole, and the fixing bolt penetrates through the fixing hole and the bolt hole so as to fixedly connect the stuffing pressing plate with the valve body.
Preferably, the inner side wall of the valve body is provided with a step, and the lower end face of the flexible graphite ring is abutted to the step.
Preferably, a bracket is arranged between the actuating mechanism and the valve body.
Preferably, one side of the support, which faces the valve rod, is provided with an anti-rotation block, and the anti-rotation block is sleeved on the valve rod.
Preferably, the end part of the valve rod is sleeved with a split ring and a valve clack cover, and the valve clack cover is connected with the valve clack through a bolt.
Preferably, the valve body is connected with the flat bottom through a flange, and the flange is a national standard flange.
Preferably, the valve body and the support are connected through a flange, and the flange is a national standard flange. The flange at the joint of the valve body is designed into a national standard flange, so that the same specification and model can be replaced, and the flange can be exchanged during installation and maintenance.
The utility model has the advantages that:
1. the utility model discloses with the design of packing box on the valve body, can realize that the valve body is small, compact structure compares with conventional valve body and has reduced the dew point.
2. The utility model discloses can realize changing the same kind of specification model for the national standard flange with the flange design of valve body junction, can exchange in the installation maintenance for the baiting valve is more standardized.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings required for use in the description will be briefly introduced below, and it is apparent 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 these drawings without creative efforts.
Fig. 1 is a cross-sectional view of the flat bottom discharge valve when the valve clack is separated from the valve seat.
Fig. 2 is a cross-sectional view of the flat-bottom discharge valve when the valve clack abuts against the valve seat.
Fig. 3 is an enlarged view of a structure at a in fig. 1.
Fig. 4 is an enlarged view of the structure at B in fig. 1.
Fig. 5 is an enlarged view of the structure at C in fig. 2.
In the figure: 1. the device comprises a flat bottom, 2, a valve seat, 3, a split ring, 4, a valve clack cover, 5, a valve clack, 6, a valve rod, 7, a valve body, 8, a flexible graphite sleeve, 9, a packing pressing sleeve, 10, a packing pressing cover, 11, an anti-rotating block, 12, a support, 13, an actuating mechanism, 14, a fixing bolt, 15, a hand wheel, 16, a driving bevel gear, 17, a driven bevel gear, 18 and a nut.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments, and obviously, the embodiments described below are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the scope of protection of this patent.
As shown in fig. 1 to 5, in the present embodiment, the main structure of the flat-bottom baiting valve provided by the present invention includes a flat bottom 1, a valve seat 2, a split ring 3, a valve flap cover 4, a valve flap 5, a valve rod 6, a valve body 7, a flexible graphite sleeve 8, a packing pressing sleeve 9, a packing gland 10, an anti-rotation block 11, a bracket 12, an actuator 13 and a fixing bolt 14, wherein the flexible graphite sleeve 8, the packing pressing sleeve 9, the packing gland 10 and the fixing bolt 14 jointly constitute a packing box. Specifically, the flat bottom 1 is fixed at the lower end of the valve body 7, a groove is formed between the flat bottom 1 and the valve body 7, the valve seat 2 is arranged in the groove, the valve rod 6 is arranged in the valve body 7, the upper end of the valve rod 6 is provided with an actuating mechanism 13, the lower end of the valve rod 6 is fixed with the valve clack 5, and the actuating mechanism 13 can drive the valve rod 6 to drive the valve clack 5 to move up and down in the valve body 7 so as to enable the valve clack 5 to be abutted to the valve seat 2 or separated from the valve seat 2; the stuffing box is fixed to the upper end of the valve body 7. The stuffing box is designed on the valve body 7, so that the valve body 7 is small in size and compact in structure, and compared with a conventional valve body, the leakage point is reduced.
And the stuffing box is used as a sealing structure of the valve rod 6, so that media such as gas or liquid materials can be prevented from leaking from the outer edge of the valve rod 6, and the sealing performance of the valve is ensured. Specifically, the packing box is including the flexible graphite ring 8, the packing pressure cover 9 and the pressure board 10 of packing that the cover located the outside of valve rod 6, the inner wall of the lower extreme butt valve body 7 of flexible graphite ring 8, the lower extreme butt flexible graphite ring 8 of the pressure cover 9 of packing, the upper end butt pressure board 10 of the pressure cover 9 of packing, the pressure board 10 of packing can extrude flexible graphite ring 8 and the pressure cover 9 of packing. The stuffing box further comprises a fixing bolt 14, the stuffing pressing plate 10 is provided with a fixing hole, the upper end of the valve body 7 is provided with a bolt hole, and the fixing bolt 14 penetrates through the fixing hole and the bolt hole to enable the stuffing pressing plate 10 to be fixedly connected with the valve body 7.
As shown in fig. 1, a step is provided on the inner side wall of the valve body 7, and the lower end surface of the flexible graphite ring 8 abuts against the step.
A support 12 is arranged between the actuator 13 and the valve body 7. And the valve body 7 is connected with the flat bottom 1 by a flange which is a national standard flange. The valve body 7 and the bracket 12 are connected by flanges which are national standard flanges. The flange at the joint of the valve body 7 is designed into a national standard flange, so that the same specification and model can be replaced, and the flange can be exchanged during installation and maintenance.
As shown in fig. 1, a rotation preventing block 11 is disposed on one side of the support 12 facing the valve rod 6, and the rotation preventing block 11 is sleeved on the valve rod 6. The anti-rotation block 11 can ensure that the valve rod 6 does not rotate unnecessarily.
Mainly come fixed connection through opening ring 3 and valve clack lid 4 between valve rod 6 and the valve clack 5, the tip cover of valve rod 6 is equipped with and opens ring 3 and valve clack lid 4, valve clack lid 4 and valve clack 5 bolted connection.
As shown in fig. 1, the flat bottom emptying valve works on the principle that:
as can be seen from fig. 1 to 2, the flap 5 has two positions. When the material needs to flow and the discharge valve is opened, the actuating mechanism 13 drives the valve rod 6 to move downwards so as to drive the valve clack 5 to move downwards until the valve clack 5 is positioned in the position shown in figure 1, at the moment, the valve seat 2 is not contacted with the valve clack 5, the discharge valve is opened, and the material can enter a feed port of the valve from the upper right side and flow out of a discharge port of the valve below; when the material is required to be disconnected and the discharge valve is closed, the actuating mechanism 13 drives the valve rod 6 to move upwards, so that the valve clack 5 is driven to move upwards until the valve clack 5 is located at the position shown in fig. 2, the valve seat 2 is in contact with the valve clack 5 at the moment, the discharge valve is closed, and the material cannot pass through the discharge valve.
As shown in fig. 3, a driving bevel gear 16 is disposed at one end of a hand wheel 15 of the discharge valve, and a driven bevel gear 17 matched with the driving bevel gear 16 is disposed, a nut 18 is screwed to the outer side of the valve rod 6, and the nut 18 is fixedly connected to the driven bevel gear 17, when the hand wheel 15 is rotated, the nut 18 is rotated by the driving bevel gear 16 and the driven bevel gear 17, and the valve rod 6 cannot rotate, so that the valve rod 6 moves up and down. The above implementation form is a common implementation form, and since the emphasis of the present application is not here, the details are not repeated.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (9)
1. A flat-bottom discharge valve is characterized by comprising a flat bottom, a valve body and a packing box, wherein the flat bottom is fixed at the lower end of the valve body, a groove is formed between the flat bottom and the valve body, a valve seat is arranged in the groove, a valve rod is arranged in the valve body, an actuating mechanism is arranged at the upper end of the valve rod, a valve flap is fixed at the lower end of the valve rod, and the actuating mechanism can drive the valve rod to drive the valve flap to move up and down in the valve body so as to enable the valve flap to be abutted to or separated from the valve seat; the stuffing box is fixed at the upper end of the valve body.
2. The flat bottom baiting valve according to claim 1, wherein the stuffing box comprises a flexible graphite ring, a stuffing press sleeve and a stuffing press plate, the flexible graphite ring, the stuffing press sleeve and the stuffing press plate are sleeved on the outer side of the valve rod, the lower end of the flexible graphite ring abuts against the inner wall of the valve body, the lower end of the stuffing press sleeve abuts against the flexible graphite ring, the upper end of the stuffing press sleeve abuts against the stuffing press plate, and the stuffing press plate can press the flexible graphite ring and the stuffing press sleeve.
3. The flat bottom emptying valve according to claim 2, wherein the stuffing box further comprises a fixing bolt, the stuffing pressing plate is provided with a fixing hole, the upper end of the valve body is provided with a bolt hole, and the fixing bolt penetrates through the fixing hole and the bolt hole to fixedly connect the stuffing pressing plate and the valve body.
4. The flat bottom discharge valve according to claim 2, wherein the inner side wall of the valve body is provided with a step against which the lower end face of the flexible graphite ring abuts.
5. A flat bottom discharge valve according to claim 1, wherein a bracket is provided between the actuator and the valve body.
6. The flat bottom baiting valve according to claim 5, characterized in that the side of the bracket facing the valve stem is provided with an anti-rotation block, which is sleeved on the valve stem.
7. The flat bottom discharge valve according to claim 1, wherein the end of the stem is sleeved with a split ring and a flap cover, the flap cover bolted to the flap.
8. The flat bottom discharge valve according to claim 1, wherein the valve body is flanged to the flat bottom, and the flange is a national standard flange.
9. The flat bottom discharge valve according to claim 5, wherein said valve body is flanged to said support, said flange being a national standard flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222716422.1U CN217842734U (en) | 2022-10-17 | 2022-10-17 | Flat-bottom discharge valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222716422.1U CN217842734U (en) | 2022-10-17 | 2022-10-17 | Flat-bottom discharge valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217842734U true CN217842734U (en) | 2022-11-18 |
Family
ID=84017015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222716422.1U Active CN217842734U (en) | 2022-10-17 | 2022-10-17 | Flat-bottom discharge valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217842734U (en) |
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2022
- 2022-10-17 CN CN202222716422.1U patent/CN217842734U/en active Active
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