CN210484666U - Gate valve - Google Patents
Gate valve Download PDFInfo
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- CN210484666U CN210484666U CN201921503994.3U CN201921503994U CN210484666U CN 210484666 U CN210484666 U CN 210484666U CN 201921503994 U CN201921503994 U CN 201921503994U CN 210484666 U CN210484666 U CN 210484666U
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- flashboard
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Abstract
The utility model discloses a gate valve, which comprises a valve body and a gate plate, wherein a first nickel-based alloy anti-corrosion layer is welded on the inner wall surface of a medium inflow channel, a second nickel-based alloy anti-corrosion layer is welded on the inner wall surface of an inner cavity of the valve body, and a third nickel-based alloy anti-corrosion layer is welded on the inner wall surface of a medium outflow channel; a fourth nickel-based alloy anti-corrosion layer is welded on the outer surface of the gate plate; an impurity collecting tank is arranged at the right end of the medium inflow channel, an impurity ejector rod is arranged in the middle of the lower end face of the flashboard, and an impurity discharging hole is formed in the position, aligned with the impurity ejector rod, of the bottom face of the impurity collecting tank; the left lower extreme of flashboard is fixed and is provided with a first elastic sealing baffle, the left lower extreme of flashboard constitutes sealedly through the bottom surface of first elastic sealing baffle and impurity collecting vat. Above-mentioned technical scheme, structural design is reasonable, simple structure, the internal face of medium passageway and the surface of flashboard are difficult for corroding, can not pollute the medium, the impurity clearance is convenient, sealing performance is good, long service life and practicality are good.
Description
Technical Field
The utility model relates to the technical field of valves, concretely relates to gate valve.
Background
The gate valve generally includes a valve body having a medium passage therein, a gate plate movably disposed in the valve body for blocking or releasing a medium in the medium passage, a water inlet connection pipe communicated with the medium passage for connecting with a water supply connector to receive a fluid, and a water outlet connection pipe communicated with the medium passage for discharging the fluid.
However, the existing gate valve has the following defects: the existing gate valve is unreasonable in structure arrangement, the inner wall surface of a medium channel and the outer surface of a gate plate are easy to corrode, the service life of the gate valve is shortened, and the medium is easy to pollute; in addition, impurities are easily accumulated at the bottom of the flashboard and are difficult to clean, so that the sealing performance is poor, the leakage is easy, and the practicability is poor.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model aims to provide a structural design is reasonable, simple structure, the internal face of medium passageway and the surface of flashboard are difficult for corroding, can not pollute the gate valve that medium, impurity clearance convenience, sealing performance are good, long service life and practicality are good.
In order to achieve the above purpose, the utility model provides a following technical scheme: a gate valve comprises a valve body, wherein a medium inflow channel, a valve body inner cavity and a medium outflow channel are sequentially arranged in the valve body from left to right, a gate plate is arranged in the valve body inner cavity, a first nickel-based alloy anti-corrosion layer is welded on the inner wall surface of the medium inflow channel, a second nickel-based alloy anti-corrosion layer is welded on the inner wall surface of the valve body inner cavity, and a third nickel-based alloy anti-corrosion layer is welded on the inner wall surface of the medium outflow channel; a fourth nickel-based alloy anti-corrosion layer is welded on the outer surface of the gate plate; the valve body is provided with an impurity collecting tank at the right end of the medium inflow channel, and the bottom surface of the impurity collecting tank is obliquely arranged from left to right; an impurity ejector rod is integrally arranged in the middle of the lower end face of the gate plate, and an impurity discharge hole is formed in the position, aligned with the impurity ejector rod, of the bottom face of the impurity collecting tank; a first elastic sealing baffle is fixedly arranged at the left lower end of the gate plate, and the left lower end of the gate plate is sealed with the bottom surface of the impurity collecting tank through the first elastic sealing baffle; the right end of the impurity collecting tank is provided with a flashboard positioning groove, a first elastic sealing layer is fixedly arranged on the inner wall surface of the flashboard positioning groove, and the right lower end of the flashboard forms a seal with the inner wall surface of the flashboard positioning groove through the first elastic sealing layer.
By adopting the technical scheme, the nickel-based alloy anti-corrosion layers are welded on the inner wall surfaces of the medium inflow channel, the inner cavity of the valve body and the medium outflow channel, and the nickel-based alloy anti-corrosion layer is also welded on the outer surface of the flashboard, so that the nickel-based alloy anti-corrosion layer has good strength, good oxidation and corrosion resistance, is not easy to corrode, and does not pollute the medium in the using process; the impurity collecting tank is designed, the bottom surface of the impurity collecting tank is obliquely designed, impurities automatically slide and are concentrated at the right end of the impurity collecting tank, and then the impurities move downwards through the flashboard, so that the impurities are ejected into the impurity discharging hole by the impurity ejector rod, and the impurities are conveniently cleaned; the left lower end of the gate plate is provided with a first elastic sealing baffle, the right lower end of the gate plate is provided with a first elastic sealing layer, the gate plate has double sealing functions, elastic sealing materials are adopted for sealing, even if impurities exist at the sealing position, the gate plate can be well sealed, leakage is not easy to occur, and the sealing performance is good; the whole gate valve is reasonable in structural design, simple in structure, the inner wall surface of the medium channel and the outer surface of the gate plate are not easy to corrode, the medium cannot be polluted, the impurity is convenient to clean, the sealing performance is good, the service life is long, and the practicability is good.
The utility model discloses further set up to: and a polytetrafluoroethylene sealing layer is fixedly arranged on the inner wall surface of the second nickel-based alloy anti-corrosion layer of the inner cavity of the valve body, and a seal is formed between the inner wall surface of the second nickel-based alloy anti-corrosion layer and the outer surface of the fourth nickel-based alloy anti-corrosion layer of the gate plate. Through this setting, the structure sets up more rationally, and is sealed reliable when the flashboard activity, is difficult for leaking.
The utility model discloses still further set up to: and an impurity discharge pipe is welded at the position, which is aligned to the impurity discharge hole, of the lower end surface of the valve body, and a sealing screw cap is connected to the lower end of the impurity discharge pipe in a threaded manner. Through this setting, impurity discharges conveniently, and it is easy to maintain.
The utility model discloses still further set up to: the middle parts of the impurity ejector rod and the flashboard are vertically provided with medium vertical through holes, the right end of the middle part of the flashboard is transversely provided with a medium transverse through hole, and the medium transverse through hole is communicated with the medium vertical through hole. Through this setting, when sealed screw cap screwed, when impurity ejector pin downstream, be located impurity discharge hole and impurity discharge intraductal unnecessary water from the medium erect through-hole and the horizontal through-hole of medium discharge to the medium outflow passageway for flashboard job stabilization.
The utility model discloses still further set up to: the upper end welding of flashboard has the valve rod, the valve rod upper end has set gradually a plurality of spacing through-holes down from last, the upper end of valve body can be dismantled and is provided with the valve gap, the up end an organic whole of valve gap is provided with the limiting plate, wear to be equipped with a spacing bolt on the limiting plate at least, spacing bolt one end is passed the spacing through-hole setting of aiming at. Through this setting, the valve rod location is reliable.
The utility model discloses still further set up to: the head of the limiting bolt is in threaded connection with a limiting nut.
The utility model has the advantages that: compared with the prior art, the utility model has more reasonable structure, the nickel-based alloy anti-corrosion layer is welded on the inner wall surfaces of the medium inflow channel, the inner cavity of the valve body and the medium outflow channel, the nickel-based alloy anti-corrosion layer is also welded on the outer surface of the flashboard, the nickel-based alloy anti-corrosion layer has good strength, good oxidation and corrosion resistance and is not easy to corrode, and the medium is not polluted in the use process; the impurity collecting tank is designed, the bottom surface of the impurity collecting tank is obliquely designed, impurities automatically slide and are concentrated at the right end of the impurity collecting tank, and then the impurities move downwards through the flashboard, so that the impurities are ejected into the impurity discharging hole by the impurity ejector rod, and the impurities are conveniently cleaned; the left lower end of the gate plate is provided with a first elastic sealing baffle, the right lower end of the gate plate is provided with a first elastic sealing layer, the gate plate has double sealing functions, elastic sealing materials are adopted for sealing, even if impurities exist at the sealing position, the gate plate can be well sealed, leakage is not easy to occur, and the sealing performance is good; the whole gate valve is reasonable in structural design, simple in structure, the inner wall surface of the medium channel and the outer surface of the gate plate are not easy to corrode, the medium cannot be polluted, the impurity is convenient to clean, the sealing performance is good, the service life is long, and the practicability is good.
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 gate valve, including valve body 1, medium inflow channel 11, valve body inner chamber 12 and medium outflow channel 13 have set gradually from a left side to the right side in the valve body 1, be provided with flashboard 2 in the valve body inner chamber 12, the welding has first nickel base alloy anti-corrosion coating 3 on the internal face of medium inflow channel 11, the welding has second nickel base alloy anti-corrosion coating 4 on the internal face of valve body inner chamber 12, the welding has third nickel base alloy anti-corrosion coating 5 on the internal face of medium outflow channel 13; a fourth nickel-based alloy anti-corrosion layer 6 is welded on the outer surface of the gate plate 2; an impurity collecting tank 111 is arranged at the right end of the medium inflow channel 11 of the valve body 1, and the bottom surface of the impurity collecting tank 111 is obliquely arranged from left to right; an impurity ejector rod 21 is integrally arranged in the middle of the lower end face of the gate plate 2, and an impurity discharge hole 112 is formed in the position, aligned with the impurity ejector rod, of the bottom face of the impurity collecting tank 111; a first elastic sealing baffle 7 is fixedly arranged at the left lower end of the gate plate 2, and the left lower end of the gate plate 2 is sealed with the bottom surface of the impurity collecting tank 111 through the first elastic sealing baffle 7; a gate positioning groove 113 is formed at the right end of the impurity collecting tank 111, a first elastic sealing layer 8 is fixedly arranged on the inner wall surface of the gate positioning groove 113, and the right lower end of the gate 2 is sealed with the inner wall surface of the gate positioning groove 113 through the first elastic sealing layer 8.
Preferably, the first nickel-based alloy anti-corrosion layer 3, the second nickel-based alloy anti-corrosion layer 4 and the third nickel-based alloy anti-corrosion layer 5 are welded in a surfacing mode to form an integral structure; the bottom surface of the impurity collecting tank 111 is inclined by 30-45 degrees from left to right; the first elastic sealing baffle 7 is fixedly bonded with the left lower end of the flashboard 2 through the existing nail-free glue or glass cement; the first elastic sealing layer 8 and the inner wall surface of the gate positioning groove 113 are bonded and fixed by the existing nail-free glue or glass glue. The first elastic sealing baffle 7 and the first elastic sealing layer 8 are both made of polytetrafluoroethylene materials.
In order to make the structure of the present invention more reasonable, in this embodiment, preferably, the polytetrafluoroethylene sealing layer 9 is fixedly disposed on the inner wall surface of the second nickel-based alloy anti-corrosion layer 4 of the valve body inner cavity 12, and a seal is formed between the inner wall surface of the second nickel-based alloy anti-corrosion layer 4 and the outer surface of the fourth nickel-based alloy anti-corrosion layer 6 of the gate plate 2.
An impurity discharge pipe 10 is welded at the position, which is aligned with the impurity discharge hole, of the lower end surface of the valve body 1, and a sealing screw cap 14 is connected to the lower end of the impurity discharge pipe 10 in a threaded manner.
The middle parts of the impurity ejector rod 21 and the flashboard 2 are vertically provided with a medium vertical through hole 211, the right end of the middle part of the flashboard 2 is transversely provided with a medium transverse through hole 212, and the medium transverse through hole 212 is communicated with the medium vertical through hole 211. Preferably, vertical holes are formed in the middle parts of the impurity ejector rod 21 and the gate plate 2, and the vertical holes in the impurity ejector rod 21 and the gate plate 2 are communicated to form a medium vertical through hole 211.
The welding of the upper end of flashboard 2 has valve rod 15, valve rod 15 upper end is from last to having set gradually a plurality of spacing through-holes 151 down, valve body 1's upper end can be dismantled and be provided with valve gap 16, the up end an organic whole of valve gap 16 is provided with limiting plate 17, wear to be equipped with a spacing bolt 18 on the limiting plate 17 at least, the spacing through-hole 151 setting of aiming at is passed to spacing bolt 18 one end. Preferably, the number of the limiting through holes 151 is more than three. The valve cover 16 is fixedly connected with the upper end of the valve body 1 through the existing bolt.
The head of the limit bolt 18 is in threaded connection with a limit nut 20.
In practical application, the nickel-based alloy anti-corrosion layers are welded on the inner wall surfaces of the medium inflow channel, the inner cavity of the valve body and the medium outflow channel, and the nickel-based alloy anti-corrosion layer is also welded on the outer surface of the flashboard, so that the nickel-based alloy anti-corrosion layer is good in strength, good in oxidation and corrosion resistance, not easy to corrode, and free of medium pollution in the using process; the impurity collecting tank is designed, the bottom surface of the impurity collecting tank is obliquely designed, impurities automatically slide and are concentrated at the right end of the impurity collecting tank, and then the impurities move downwards through the flashboard, so that the impurities are ejected into the impurity discharging hole by the impurity ejector rod, and the impurities are conveniently cleaned; the left lower end of the gate plate is provided with a first elastic sealing baffle, the right lower end of the gate plate is provided with a first elastic sealing layer, the gate plate has double sealing functions, elastic sealing materials are adopted for sealing, even if impurities exist at the sealing position, the gate plate can be well sealed, leakage is not easy to occur, and the sealing performance is good; the whole gate valve is reasonable in structural design, simple in structure, the inner wall surface of the medium channel and the outer surface of the gate plate are not easy to corrode, the medium cannot be polluted, the impurity is convenient to clean, the sealing performance is good, the service life is long, and the practicability is good.
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 (6)
1. The utility model provides a gate valve, includes valve body (1), medium inflow channel (11), valve body inner chamber (12) and medium outflow channel (13) have set gradually from a left side to the right side in valve body (1), be provided with flashboard (2), its characterized in that in valve body inner chamber (12): a first nickel-based alloy anti-corrosion layer (3) is welded on the inner wall surface of the medium inflow channel (11), a second nickel-based alloy anti-corrosion layer (4) is welded on the inner wall surface of the valve body inner cavity (12), and a third nickel-based alloy anti-corrosion layer (5) is welded on the inner wall surface of the medium outflow channel (13); a fourth nickel-based alloy anti-corrosion layer (6) is welded on the outer surface of the gate plate (2); an impurity collecting tank (111) is arranged at the right end of the medium inflow channel (11) of the valve body (1), and the bottom surface of the impurity collecting tank (111) is obliquely arranged from left to right; the middle part of the lower end surface of the gate plate (2) is integrally provided with an impurity ejector rod (21), and the bottom surface of the impurity collecting tank (111) is provided with an impurity discharge hole (112) aligned with the impurity ejector rod; a first elastic sealing baffle (7) is fixedly arranged at the left lower end of the gate plate (2), and the left lower end of the gate plate (2) is sealed with the bottom surface of the impurity collecting tank (111) through the first elastic sealing baffle (7); the right end of the impurity collecting tank (111) is provided with a flashboard positioning groove (113), a first elastic sealing layer (8) is fixedly arranged on the inner wall surface of the flashboard positioning groove (113), and the right lower end of the flashboard (2) is sealed through the first elastic sealing layer (8) and the inner wall surface of the flashboard positioning groove (113).
2. A gate valve according to claim 1, characterised in that: and a polytetrafluoroethylene sealing layer (9) is fixedly arranged on the inner wall surface of the second nickel-based alloy anti-corrosion layer (4) of the inner cavity (12) of the valve body, and a seal is formed between the inner wall surface of the second nickel-based alloy anti-corrosion layer (4) and the outer surface of the fourth nickel-based alloy anti-corrosion layer (6) of the gate plate (2).
3. A gate valve according to claim 1, characterised in that: the lower end face of the valve body (1) is welded with an impurity discharge pipe (10) at a position corresponding to the impurity discharge hole, and the lower end of the impurity discharge pipe (10) is connected with a sealing screw cap (14) in a threaded manner.
4. A gate valve according to claim 1 or 3, characterised in that: the middle parts of the impurity ejector rod (21) and the flashboard (2) are vertically provided with a medium vertical through hole (211), the right end of the middle part of the flashboard (2) is transversely provided with a medium transverse through hole (212), and the medium transverse through hole (212) is communicated with the medium vertical through hole (211).
5. A gate valve according to claim 1, characterised in that: the welding of the upper end of flashboard (2) has valve rod (15), valve rod (15) upper end is from last to having set gradually a plurality of spacing through-holes (151) down, the upper end of valve body (1) can be dismantled and be provided with valve gap (16), the up end an organic whole of valve gap (16) is provided with limiting plate (17), wear to be equipped with a spacing bolt (18) on limiting plate (17) at least, spacing through-hole (151) setting of aiming at is passed to spacing bolt (18) one end.
6. A gate valve according to claim 5, characterised in that: the head of the limiting bolt (18) is in threaded connection with a limiting nut (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921503994.3U CN210484666U (en) | 2019-09-10 | 2019-09-10 | Gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921503994.3U CN210484666U (en) | 2019-09-10 | 2019-09-10 | Gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210484666U true CN210484666U (en) | 2020-05-08 |
Family
ID=70541431
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921503994.3U Active CN210484666U (en) | 2019-09-10 | 2019-09-10 | Gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210484666U (en) |
-
2019
- 2019-09-10 CN CN201921503994.3U patent/CN210484666U/en active Active
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