CN208578980U - The motor-driven valve that refrigeration equipment is opened with no pressure difference - Google Patents
The motor-driven valve that refrigeration equipment is opened with no pressure difference Download PDFInfo
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- CN208578980U CN208578980U CN201821230868.0U CN201821230868U CN208578980U CN 208578980 U CN208578980 U CN 208578980U CN 201821230868 U CN201821230868 U CN 201821230868U CN 208578980 U CN208578980 U CN 208578980U
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Abstract
The utility model discloses the motor-driven valves that a kind of refrigeration equipment is opened with no pressure difference, including valve body, valve deck, motor, valve chamber and first pipe and second pipe are equipped in valve body, the piston is cirque structure, and piston outer periphery is combined with valve barrel, top land is connected with piston cap, piston cap intermediate thread connection wire rod, screw rod connect motor, are additionally provided with venthole in piston cap；The junction of the connection of valve barrel the bottom first pipe and second pipe, valve barrel top connects valve deck；The piston base passes through the valve port of sealing ring close fit valve barrel bottom inside.The utility model forms first chamber, third chamber, third chamber using valve barrel fitting projection ring structure, and two between three chambers reach motor-driven valve control piston zero pressure difference inside and outside piston during opening and closing without pressure differential structure.
Description
Technical field
The utility model relates to a kind of motor-driven valve, the motor-driven valve opened in particular to a kind of refrigeration equipment with no pressure difference.
Background technique
The valve flowed at present for controlling two pipeline internal mediums in refrigeration system, mostly uses motor-driven valve, existing
It must overcome cracking pressure caused by pressure difference different between two pipelines in opening process with motor-driven valve, and this pressure difference is serious
The reliability of motor-driven valve unlatching is affected, especially needs frequently opening and closing, this starting differential pressure in field of refrigeration equipment motor-driven valve
The presence of structure drastically influences the technical performance of this kind of motor-driven valve.How to realize that the piston of motor-driven valve control can be inside and outside
Realize that opening and closing is the object of those skilled in the art's research on the basis of no pressure difference.
Summary of the invention
The utility model provides that a kind of structure is simple, opening and closing reliable is high, and refrigeration equipment of the piston opening and closing without pressure difference is used
The motor-driven valve that no pressure difference is opened.
A kind of motor-driven valve that refrigeration equipment is opened with no pressure difference, including valve body, body top are equipped with valve deck, pacify on valve deck
Equipped with motor, it is equipped with valve chamber and first pipe and second pipe in valve body, passes through valve chamber between first pipe and second pipe
Interior piston controls opening and closing, and by motor control, the piston is cirque structure, piston outer periphery cooperation for the up and down motion of piston
There is valve barrel, top land is connected with piston cap, piston cap intermediate thread connection wire rod, and screw rod connects motor, also sets in piston cap
There is venthole；The junction of the connection of valve barrel the bottom first pipe and second pipe, valve barrel top connects valve deck；Described
Piston base passes through the valve port of sealing ring close fit valve barrel bottom inside.The piston structure of this kind of circular ring shape its by valve barrel,
Piston cap upper side, valve deck downside form first chamber；The second pipe and toroidal piston inner wall forms the second chamber
Room, by venthole pressure balance between first chamber and second chamber, that is, first chamber and the when piston up-down
It is that no pressure difference is opened between two chambers.Protruding ring cooperation valve barrel inner wall and piston outer wall, piston bottom on the downside of valve deck downwards
Portion edge forms third chamber, and third chamber and first pipe are interconnected, that is, when piston up-down third chamber and
It is that no pressure difference is opened between first pipe, finally realizes opening without pressure difference for entire motor-driven valve.
Protruding ring is equipped on the downside of the valve deck downwards, protruding ring is equipped with guide groove, and be cooperatively connected installation in guide groove
Guide rod on piston side wall, the direction accuracy of piston motion is improved by guide rod, while preventing piston-deflection from causing
Unnecessary abrasion.
The valve barrel lower part is equipped with slot, third chamber and first pipe and is interconnected by slot.
The structures such as the utility model valve barrel fitting projection ring form first chamber, third chamber, third chamber, three chambers
Between two without pressure differential structure, reach motor-driven valve control piston zero pressure difference inside and outside piston during opening and closing.
Detailed description of the invention
Fig. 1 is the schematic cross-sectional view for the motor-driven valve that the utility model refrigeration equipment is opened with no pressure difference.
Specific embodiment
A kind of motor-driven valve that refrigeration equipment is opened with no pressure difference as shown in Figure 1, including valve body 12 are equipped at the top of valve body 12
Valve deck 15 is equipped with motor 1 on valve deck 15, is equipped with valve chamber and first pipe 10 and second pipe 8, first pipe in valve body 12
Opening and closing is controlled by the piston 9 in valve chamber between 10 and second pipe 8, the up and down motion of piston 9 is controlled by motor 1.
Piston 9 is cirque structure, and 9 periphery of piston is combined with valve barrel 11, and 9 bottom of piston passes through sealing ring close fit valve
The valve port 17 of 11 bottom inside of cylinder is connected with piston cap 16,16 intermediate thread connection wire rod 2 of piston cap, screw rod 2 at the top of piston 9
Motor 1 is connected, venthole 14 is additionally provided in piston cap 16,15 bottom of valve deck combines valve barrel 11,16 upper side of piston cap, valve deck 15
Downside forms first chamber 3, and second pipe 8 and toroidal piston inner wall form second chamber 4, first chamber 3 and the second chamber
By 14 pressure balance of venthole between room 5, reach internal piston zero pressure difference during up and down motion.
11 bottom of valve barrel connects the junction of first pipe 10 and second pipe 8, is equipped with protruding ring downwards on the downside of valve deck
13 cooperation 11 inner walls of valve barrel and 9 outer wall of piston, piston base edge form third chamber 7, third chamber 7 and first pipe 10
It is interconnected.
It is equipped with guide groove as the preferred protruding ring 13 of structure, is cooperatively connected in guide groove and is mounted on leading on piston side wall
To bar 5.
Claims (5)
1. the motor-driven valve that a kind of refrigeration equipment is opened with no pressure difference, including valve body, body top is equipped with valve deck, installs on valve deck
There is motor, valve chamber and first pipe and second pipe is equipped in valve body, by valve chamber between first pipe and second pipe
Piston control opening and closing, the up and down motion of piston is by motor control, it is characterised in that: the piston is cirque structure, living
It is combined with valve barrel week beyond the Great Wall, top land is connected with piston cap, piston cap intermediate thread connection wire rod, and screw rod connects motor, living
Venthole is additionally provided in corking；The junction of the connection of valve barrel the bottom first pipe and second pipe, the connection of valve barrel top
Valve deck；The piston base passes through the valve port of sealing ring close fit valve barrel bottom inside.
2. the motor-driven valve that refrigeration equipment according to claim 1 is opened with no pressure difference, it is characterised in that: on the downside of the valve deck
It is equipped with protruding ring downwards, protruding ring is equipped with guide groove, and be cooperatively connected the guide rod being mounted on piston side wall in guide groove.
3. the motor-driven valve that refrigeration equipment according to claim 1 is opened with no pressure difference, it is characterised in that: the valve deck knot
Close valve barrel, piston cap upper side, valve deck downside formation first chamber；The second pipe is formed with toroidal piston inner wall
Second chamber passes through venthole pressure balance between first chamber and second chamber.
4. the motor-driven valve that refrigeration equipment according to claim 1 is opened with no pressure difference, it is characterised in that: under the valve deck
The downward protruding ring cooperation valve barrel inner wall in side and piston outer wall, piston base edge form third chamber.
5. the motor-driven valve that refrigeration equipment according to claim 1 is opened with no pressure difference, it is characterised in that: under the valve barrel
Portion is equipped with slot, third chamber and first pipe and is interconnected by slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821230868.0U CN208578980U (en) | 2018-08-01 | 2018-08-01 | The motor-driven valve that refrigeration equipment is opened with no pressure difference |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821230868.0U CN208578980U (en) | 2018-08-01 | 2018-08-01 | The motor-driven valve that refrigeration equipment is opened with no pressure difference |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208578980U true CN208578980U (en) | 2019-03-05 |
Family
ID=65511812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821230868.0U Active CN208578980U (en) | 2018-08-01 | 2018-08-01 | The motor-driven valve that refrigeration equipment is opened with no pressure difference |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208578980U (en) |
-
2018
- 2018-08-01 CN CN201821230868.0U patent/CN208578980U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |