CN215891180U - Hand knife gate valve with sight glass - Google Patents
Hand knife gate valve with sight glass Download PDFInfo
- Publication number
- CN215891180U CN215891180U CN202122226874.7U CN202122226874U CN215891180U CN 215891180 U CN215891180 U CN 215891180U CN 202122226874 U CN202122226874 U CN 202122226874U CN 215891180 U CN215891180 U CN 215891180U
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- valve body
- valve
- rod
- sealing ring
- locking
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Abstract
The utility model relates to a portable knife gate valve with a peep hole, which comprises a valve body, a flashboard and a valve rod, wherein a packing sealing ring is arranged between the upper end surface of the valve body and the valve rod; the method is characterized in that: a sight glass is arranged in the right valve body channel and is fixedly arranged in the end face of a connecting flange of the right valve body channel opening by adopting a movable flange; the upper end of the valve rod is connected with a hand-held ring, a valve rod locking device is arranged on the valve body and consists of a locking rod, a sealing cover, a sealing ring and a claw nut, the locking rod is hermetically arranged in the valve body locking hole through the sealing cover, the claw nut is fixedly arranged at one end of the locking rod, the other end of the locking rod is in abutting contact with the valve rod, and the sealing ring is tightly pressed and arranged in the valve body locking hole on the outer circular surface of the locking rod through the sealing cover. The device has the advantages of small volume, light weight, small installation space, low cost and the like.
Description
Technical Field
The utility model belongs to the field of valves, and particularly relates to a knife gate valve. The utility model is suitable for the valve for observing the reaction condition of the substances on the inner wall of the chemical reaction vessel such as a high-pressure reaction kettle and the like.
Background
In material mixes and reaction process, reaction vessel generally need have higher pressure-bearing performance, and the inside condition of reaction vessel generally judges through the on-screen display data, for the inside material reaction condition of visual observation container, generally adopts at the visual valve of container lateral wall installation, and the visual valve of this kind more generally adopts ball valve or gate valve that has the full flow channel, and the inside material reaction condition of observation container can clearly be seen when the valve is opened. However, the existing gate valve has large volume, heavy weight, large installation space and high product price.
Disclosure of Invention
Aiming at the problems in the prior art, the utility model provides the portable knife gate valve with the sight glass, which can visually check the reaction condition of the substances in the container, and has the advantages of small volume, light weight, small installation space and low product price.
The technical scheme of the utility model comprises a valve body, a gate plate and a valve rod, wherein a packing sealing ring is arranged between the upper end surface of the valve body and the valve rod, the lower end of the valve rod is fixedly connected with the gate plate, the gate plate adopts a knife-shaped gate plate, the valve body consists of a left valve body and a right valve body, a valve seat sealing surface which is in dynamic sealing fit with the gate plate is arranged at a passage port of the left valve body and a passage port of the right valve body, and the left valve body is provided with a flange which is connected with a container; the method is characterized in that: a sight glass is arranged in the right valve body channel and is fixedly arranged in the end face of a connecting flange of the right valve body channel opening by adopting a movable flange; the upper end of the valve rod is connected with a hand-held ring, a valve rod locking device is arranged on the valve body and consists of a locking rod, a sealing cover, a sealing ring and a claw nut, the locking rod is hermetically arranged in the valve body locking hole through the sealing cover, the claw nut is fixedly arranged at one end of the locking rod, the other end of the locking rod is in abutting contact with the valve rod, and the sealing ring is tightly pressed and arranged in the valve body locking hole on the outer circular surface of the locking rod through the sealing cover.
Preferably, a groove is arranged between the combined planes of the left valve body and the right valve body, a graphite flat gasket is embedded in the groove, and the upper end of the graphite flat gasket is contacted with the lower end of the packing sealing ring.
Preferably, the right valve body inside the sight glass is provided with a flushing hole.
Compared with the prior art, the utility model has the advantages that the flashboard adopts a portable opening and closing structure, the product volume is reduced, the product weight is reduced, the installation space is small, and the cost is low.
Drawings
Fig. 1 is a schematic diagram of the external structure of the utility model.
Fig. 2 is a sectional view taken along a line a-a of fig. 1 according to the present invention.
In the figure: 1 left valve body, 2 set screw, 3 flat gasket gaskets of graphite, 4 right valve bodies, 5 flashboards, 6 sight glass pieces, 7 movable flanges, 8 valve rods, 9 packing sealing rings, 10 glands, 11 fastening nuts, 12 hand-held rings, 13 closing caps, 14 sealing rings, 15 locking rods and 16 goat's horn nuts.
Detailed Description
The portable knife gate valve with the peep hole as shown in fig. 1 and fig. 2 comprises a valve body, a gate plate 5 and a valve rod 8, wherein a packing sealing ring 9 is arranged between the upper end surface of the valve body and the valve rod 8, the packing sealing ring 9 is tightly pressed and arranged in a packing cavity between the outer circular surface of the valve rod 8 and the valve body by a gland 10, the lower end of the valve rod 8 is fixedly connected with the gate plate 5, the gate plate 5 adopts a knife gate plate, the valve body consists of a left valve body 1 and a right valve body 4 which are mutually connected by adopting a fixing screw 2, a valve seat sealing surface which is in dynamic sealing fit with the gate plate 5 is arranged at a passage port of the combined surface of the left valve body 1 and the right valve body 4, and the left valve body 1 is provided with a flange which is connected with a container; the method is characterized in that: a sight glass 6 is arranged in a channel of the right valve body 4, and the sight glass 6 is fixedly arranged in the end surface of a connecting flange of a channel port of the right valve body 4 by adopting a movable flange 7; hand ring 12 is connected to 8 upper ends of valve rods, and this hand ring 12 is connected with valve rods 8 through fastening nut 11, and when observing the inside condition of container, pull up hand ring 12 and open flashboard 5, can observe the inside material reaction condition of container through looking at lens 6, presses down hand ring 12 after the observation is finished and closes flashboard 5, prevents to look at lens 6 and to receive the pressure for a long time and damage. The valve body is provided with a valve rod locking device, the valve rod locking device is composed of a locking rod 15, a sealing cover 13, a sealing ring 14 and a claw nut 16, the locking rod 15 is hermetically arranged in a valve body locking hole through the sealing cover 13, the claw nut 16 is fixedly arranged at one end of the locking rod 15, the other end of the locking rod is in abutting contact with the valve rod 8, the outer circular surface of the locking rod is in threaded connection with the valve body locking hole, and the sealing ring 14 is tightly pressed and arranged in the valve body locking hole in the outer circular surface of the locking rod 15 through the sealing cover 13. Before the opening and closing operation, the claw nut 16 is rotated to separate the end part of the lock rod 15 from the valve rod 8, so that the valve rod 8 can move axially to open and close the operation; after the opening and closing operation is completed, the end part of the lock rod 15 is tightly contacted with the valve rod 8 by rotating the claw nut 16, so that the valve rod 8 is prevented from moving axially.
A groove is formed between the combined planes of the left valve body 1 and the right valve body 4, a graphite flat gasket 3 is embedded in the groove, and the upper end of the graphite flat gasket 3 is in contact with the lower end of a packing sealing ring 9 to form a closed sealing structure for the valve cavity.
The right valve body 4 on the inner side of the sight glass 6 is provided with a flushing hole, so that the cleaning of the container, the inner wall of the valve and the sight glass is convenient.
Claims (3)
1. A portable knife gate valve with a peep hole comprises a valve body, a flashboard (5) and a valve rod (8), wherein a packing sealing ring (9) is arranged between the upper end surface of the valve body and the valve rod (8), the lower end of the valve rod (8) is fixedly connected with the flashboard (5), the flashboard (5) adopts a knife-shaped flashboard, the valve body consists of a left valve body (1) and a right valve body (4), a valve seat sealing surface which is mutually matched with the flashboard (5) is arranged at a passage opening of the combined surface of the left valve body (1) and the right valve body (4), and the left valve body (1) is provided with a flange which is connected with a container; the method is characterized in that: a sight glass (6) is arranged in a channel of the right valve body (4), and the sight glass (6) is fixedly arranged in the end face of a connecting flange of a channel port of the right valve body (4) by adopting a movable flange (7); hand ring (12) are connected to valve rod (8) upper end, are equipped with valve rod locking device on the valve body, valve rod locking device comprises locking lever (15), closing cap (13), sealing ring (14) and goat's horn nut (16), and locking lever (15) are by closing cap (13) seal installation in the valve body lockhole, its one end fixed mounting goat's horn nut (16), and the other end pushes up with valve rod (8) and touches, threaded connection between disc and the valve body lockhole, and sealing ring (14) are compressed tightly by closing cap (13) and are installed in the valve body lockhole of locking lever (15) disc.
2. The hand-held knife gate valve with speculum of claim 1, wherein: a groove is formed between the combined planes of the left valve body (1) and the right valve body (4), a graphite flat gasket (3) is embedded in the groove, and the upper end of the graphite flat gasket (3) is in contact with the lower end of the packing sealing ring (9).
3. The hand-held knife gate valve with speculum of claim 1 or 2, wherein: the right valve body (4) at the inner side of the sight glass (6) is provided with a flushing hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122226874.7U CN215891180U (en) | 2021-09-15 | 2021-09-15 | Hand knife gate valve with sight glass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122226874.7U CN215891180U (en) | 2021-09-15 | 2021-09-15 | Hand knife gate valve with sight glass |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215891180U true CN215891180U (en) | 2022-02-22 |
Family
ID=80338438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122226874.7U Active CN215891180U (en) | 2021-09-15 | 2021-09-15 | Hand knife gate valve with sight glass |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215891180U (en) |
-
2021
- 2021-09-15 CN CN202122226874.7U patent/CN215891180U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |