CN208495734U - A kind of metallurgical industry ingot casting cooling integration device - Google Patents
A kind of metallurgical industry ingot casting cooling integration device Download PDFInfo
- Publication number
- CN208495734U CN208495734U CN201820822193.2U CN201820822193U CN208495734U CN 208495734 U CN208495734 U CN 208495734U CN 201820822193 U CN201820822193 U CN 201820822193U CN 208495734 U CN208495734 U CN 208495734U
- Authority
- CN
- China
- Prior art keywords
- ingot casting
- bearing plate
- metallurgical industry
- solvent
- chamber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The utility model discloses a kind of metallurgical industry ingot casting cooling integration devices, including ingot casting chamber, connecting rod, protect chamber and vertical bar, the upper end of the ingot casting chamber is fixed with partition, and the upper end of partition is provided with feed inlet, the lower end two sides of the feed inlet are mounted on crushing block, the connecting rod is mounted between crushing block, the inner bottom of the ingot casting chamber is equipped with bearing plate, and the upper ends of bearing plate have die box, the end of the vertical bar is connect by sliding block with bearing plate, and the inside of bearing plate offers sliding slot, gas collection water tank is installed on the right side of the ingot casting chamber, and the input terminal of gas collection water tank is connected with gas collecting tube.The metallurgical industry is with can be effectively to the raw metal heat dissipation appropriate after thawing during successively falling into ingot casting cooling integration device, and it can avoid the case where its raw material splashes during falling into, so that each orientation of its raw material and each angle are fallen into die box, so that the solvent thickness in die box is uniform.
Description
Technical field
The utility model relates to metallurgical production processing technique field, specially a kind of metallurgical industry ingot casting cooling integration
Device.
Background technique
Metallurgy is exactly that metal or metallic compound are extracted from mineral, and metal, which is made, with various processing methods has centainly
The process and technique of the metal material of performance, metallurgy has long developing history, when from the Stone Age to subsequent bronze ware
Generation, then to the extensive development of modern age smelting iron and steel, the history of human development has merged the developing history of metallurgy, metallurgical technology
It include mainly pyrometallurgy, hydrometallurgy and electrometallurgy, as physical chemistry is applied successfully in metallurgy, metallurgy is walked from technique
To science, the then quality Personnel in Metallurgical Engineering in You Liao university, therefore ingot casting device just seems and is even more important in the production of metallurgy,
And cooling setting enables to metal die rapid shaping during its ingot casting, therefore ingot casting is cold in metallurgical industry
But integrated apparatus just seems and is even more important.
The metallurgical industry that modern times use makes metal mold with generalling use quick method in ingot casting cooling integration device
Have rapid shaping, but easily there is the case where uneven out-of-flatness in the surface of metal die in this forming method, so that at
Metal die after type is unfavorable for continuing to use for market, and does not have the gas to its inside during cast metals
The function of centralized collection and processing easily pollutes air so that gas is volatile in air, is unfavorable for safeguard work people
The health of member is unfavorable for user's use.
Utility model content
The purpose of this utility model is to provide a kind of metallurgical industry ingot casting cooling integration devices, to solve above-mentioned back
The metallurgical industry used proposed in scape technology makes metal with generalling use quick method in ingot casting cooling integration device
Mold rapid shaping, but easily there is the case where uneven out-of-flatness in the surface of metal die in this forming method, so that
Metal die after molding is unfavorable for continuing to use for market, and does not have the gas to its inside during cast metals
The function of body centralized collection and processing easily pollutes air so that gas is volatile in air, is unfavorable for safeguard work
The health of personnel is unfavorable for the problem of user uses.
To achieve the above object, the utility model provides the following technical solutions: a kind of metallurgical industry ingot casting cooling integrated
Makeup is set, including ingot casting chamber, connecting rod, protection chamber and vertical bar, the upper end of the ingot casting chamber are fixed with partition, and the upper end of partition
It is provided with feed inlet, the lower end two sides of the feed inlet are mounted on crushing block, and the lower end of crushing block offers discharge port, institute
It states connecting rod to be mounted between crushing block, and the end of crushing block is connect by reinforcing bar with solvent shower nozzle, the protection chamber peace
Mounted in the left side of ingot casting chamber, and protect the inside of chamber that air blower is installed, the inner bottom of the ingot casting chamber is equipped with bearing plate,
And the upper ends of bearing plate have die box, the end of the vertical bar is connect by sliding block with bearing plate, and the inside of bearing plate
Sliding slot is offered, gas collection water tank is installed, and the input terminal of gas collection water tank is connected with gas collecting tube on the right side of the ingot casting chamber.
Preferably, the crushing block is disposed with two groups about the substantially symmetrical about its central axis of partition, and the inside of crushing block is hollow
Shape structure, and in perforation shape structure between crushing block and feed inlet.
Preferably, the reinforcing bar is in " river " font structure, and to be fixedly connected between reinforcing bar and solvent shower nozzle, and
The top of solvent shower nozzle is provided with solvent inlet.
Preferably, solvent drum is installed, and solvent drum is pyramidal structure, and solvent inlet above the solvent inlet
In one-to-one correspondence arrangement between solvent drum.
Preferably, the left and right output end of the air blower is connected separately with blast pipe and discharge pipe, and the right of air blower
Condenser is installed, and the output end of condenser is connected with duct set.
Preferably, the output end of the duct set is connected with placement pipe, and the output end of pipe is disposed to be provided with outlet air spray head,
And duct set and placement pipe are in perforation integral structure, while outlet air spray head is equally arranged.
Preferably, between the bearing plate and vertical bar to be slidably connected, and the distance of bearing plate level sliding and sliding slot
Length is identical, and bearing plate is elastic extension structure.
Preferably, cross bar is installed, and cross bar and vertical bar are arranged symmetrically between the vertical bar, and it constitutes " net " word
Type structure.
Preferably, the surface of the vertical bar offers caulking groove, and to be flexibly connected between cross bar and vertical bar, and cross bar
Two sides are provided with latch segment.
Compared with prior art, the beneficial effects of the utility model are as follows:
1. the utility model passes through the setting of crushing block, connecting rod, solvent drum, reinforcing bar and solvent shower nozzle, user can
Raw metal after thawing is put into feed inlet, the raw metal after melting at this time sequentially enters crushing block and company by feed inlet
In extension bar and solvent drum, because it has certain spacing between any two, and it is in be arranged in a one-to-one correspondence between any two,
Can be effectively to the raw metal heat dissipation appropriate after thawing during successively falling into, and can avoid during falling into
The case where its raw material splashes, so that each orientation of its raw material and each angle are fallen into die box, so that in die box
Solvent thickness is uniform;
2. passing through the setting of air blower, blast pipe, discharge pipe and condenser, in the switch for opening air blower and condenser
Afterwards, air blower can rapidly suck extraneous wind in protection chamber, then the cold air that condenser working generates rapidly is blown into casting
In ingot chamber, protects the setting of chamber that the air quantity and cold air that air blower and condenser working generate can be effectively protected, keep away
Exempt from it to distribute into air, avoid the working efficiency for reducing air blower and condenser, to guarantee the normal of air blower and condenser
The progress of work;
3. by the setting of duct set, placement pipe outlet air spray head, because duct set and placement pipe penetrate through integral type knot to be molded
The cold air that condenser working generates can be rapidly blown into ingot casting chamber, the setting energy equidistantly arranged by outlet air spray head by structure
Enough so that the cold air is full of the inside of entire ingot casting chamber, conducive to the temperature for reducing the intracavitary portion of ingot casting within effective time, so that mould
Have the metallic solution inside case to be cooled and shaped, the method for avoiding traditional fast cooling makes it avoid the occurrence of rough feelings
Condition;
4. passing through the setting of bearing plate, cross bar, vertical bar and caulking groove, user can be by vertical bar Level Promoting, and vertical bar is logical at this time
Caulking groove and the sliding of sliding block level are crossed, the spacing between vertical bar is adjusted, because bearing plate is elastic extension structure, therefore it is perpendicular adjusting
During distance between tie rods, bearing plate can also be stretched, in order to the die box of user to difference and in a certain range
The outer wall for the die box placed, the injection molding in order to user to different molds, and can finished to placement is protected, and is conducive to
Increase the stability and balance quality of its Gravity support;
5. passing through the setting of gas collection water tank and gas collecting tube, it connect, casts with its inside because the top of gas collecting tube passes through ingot casting chamber
The state sealed at the inside presentation of ingot chamber, the heat in the intracavitary portion of ingot casting can be entered in gas collection water tank, be conducive to by gas collecting tube
The gas of its inside is collected, the gas for avoiding it internal directly evaporates into air, avoids polluting air, benefit
In the health and personal safety that ensure staff around it, it is conducive to environmental protection, can be widely used.
Detailed description of the invention
Fig. 1 is the utility model positive structure diagram;
Fig. 2 is the utility model side structure schematic view;
Fig. 3 is the utility model solvent shower nozzle overlooking structure diagram;
Fig. 4 is the utility model solvent drum and solvent shower nozzle work structure diagram;
Fig. 5 is that the utility model cross bar and vertical bar combine overlooking structure diagram.
In figure: 1, ingot casting chamber, 2, partition, 3, feed inlet, 4, crushing block, 5, discharge port, 6, connecting rod, 7, solvent drum, 8,
Reinforcing bar, 9, solvent shower nozzle, 10, solvent inlet, 11, protection chamber, 12, air blower, 13, blast pipe, 14, discharge pipe, 15, condensation
Device, 16, duct set, 17, placement pipe, 18, outlet air spray head, 19, bearing plate, 20, sliding slot, 21, cross bar, 22, vertical bar, 23, caulking groove,
24, die box, 25, sliding block, 26, latch segment, 27, gas collection water tank, 28, gas collecting tube.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, and be not all of
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Fig. 1-5 is please referred to, the utility model provides a kind of technical solution: a kind of metallurgical industry ingot casting cooling integrated makeup
It sets, including ingot casting chamber 1, partition 2, feed inlet 3, crushing block 4, discharge port 5, connecting rod 6, solvent drum 7, reinforcing bar 8, solvent shower nozzle
9, solvent inlet 10, protection chamber 11, air blower 12, blast pipe 13, discharge pipe 14, condenser 15, duct set 16, placement pipe 17,
Outlet air spray head 18, bearing plate 19, sliding slot 20, cross bar 21, vertical bar 22, caulking groove 23, die box 24, sliding block 25, latch segment 26, gas collection
Water tank 27 and gas collecting tube 28, the upper end of ingot casting chamber 1 is fixed with partition 2, and the upper end of partition 2 is provided with feed inlet 3, feed inlet 3
Lower end two sides be mounted on crushing block 4, and the lower end of crushing block 4 offers discharge port 5, center of the crushing block 4 about partition 2
Axial symmetry is disposed with two groups, and the inside of crushing block 4 is hollow shape structure, and in perforation shape between crushing block 4 and feed inlet 3
Structure is entered in crushing block 4 by feed inlet 3 convenient for the raw metal after melting, then enters solvent drum 7 by crushing block 4
In, so that the raw metal after melting slowly moves down;
Connecting rod 6 is mounted between crushing block 4, and the end of crushing block 4 is connect by reinforcing bar 8 with solvent shower nozzle 9, is added
Solid rod 8 is in " river " font structure, and to be fixedly connected between reinforcing bar 8 and solvent shower nozzle 9, and the top of solvent shower nozzle 9 is set
Be equipped with solvent inlet 10 so that after melting raw metal is multi-faceted and multi-angle moves down, flow in die box 24,
The top of solvent inlet 10 is equipped with solvent drum 7, and solvent drum 7 is pyramidal structure, and between solvent inlet 10 and solvent drum 7
It is arranged in corresponding, so that the raw metal after melting is entered in solvent drum 7 by the feed inlet of 7 upper end of solvent drum, and one
One layer of layer successively makes during flow down the raw metal thickness after the thawing of outflow uniform, and protection chamber 11 is mounted on casting
The left side of ingot chamber 1, and protect the inside of chamber 11 that air blower 12 is installed, the left and right output end of air blower 12 is connected separately with air inlet
Pipe 13 and discharge pipe 14, and the right of air blower 12 is equipped with condenser 15, and the output end of condenser 15 is connected with collection wind
Extraneous air is rapidly sucked in protection chamber 11 when air blower 12 can work, and condenser 15 is worked and is produced by pipe 16
Radix Rehmanniae side's cooling capacity is uniformly delivered in ingot casting chamber 1, and the output end of duct set 16 is connected with placement pipe 17, and disposes the defeated of pipe 17
Outlet is provided with outlet air spray head 18, and duct set 16 and placement pipe 17 are in perforation integral structure, while outlet air spray head 18 is in
It is equally spaced, the cold air that air blower 12 and the work of condenser 15 generate can uniformly be conveyed and is full of entire ingot casting chamber 1
In, conducive to the temperature that can be reduced within the effective time inside its energy;
The inner bottom of ingot casting chamber 1 is equipped with bearing plate 19, and the upper ends of bearing plate 19 have die box 24, bearing plate
To be slidably connected between 19 and vertical bar 22, and the distance of the horizontal sliding of bearing plate 19 is identical with the length of sliding slot 20, and load-bearing
Plate 19 is elastic extension structure, and user can push vertical bar 22, and vertical bar 22 starts to move by sliding block 25 and caulking groove 23 at this time, with
Convenient for adjusting the spacing between vertical bar 22, the end of vertical bar 22 is connect by sliding block 25 with bearing plate 19, and bearing plate 19 is interior
Portion offers sliding slot 20, cross bar 21 is equipped between vertical bar 22, and cross bar 21 and vertical bar 22 are arranged symmetrically, and it is constituted
" net " font structure, can to die box 24 have certain support degree, and can the outer wall to die box 24 protect,
Conducive to supporting & stablizing performance when it being kept to place, the surface of vertical bar 22 offers caulking groove 23, and between cross bar 21 and vertical bar 22
To be flexibly connected, and the two sides of cross bar 21 are provided with latch segment 26, after vertical bar 22 is pushed to certain position, by tight block 26
The two sides for being mounted on vertical bar 22 can be fixedly secured in a certain position, in order to reach the function for adjusting spacing between vertical bar 22
Can, the right side of ingot casting chamber 1 is equipped with gas collection water tank 27, and the input terminal of gas collection water tank 27 is connected with gas collecting tube 28.
Working principle: for this kind of metallurgical industry ingot casting cooling integration device, die box 24 is placed on holds first
The upper end of weight plate 19, then vertical bar 22 is pushed, the horizontal sliding in cross bar 21 by caulking groove 23 and sliding block 25 of vertical bar 22 at this time, until perpendicular
The inner wall of bar 22 and the outer wall of die box 24 fit closely, and because bearing plate 19 is elastic extension structure, are adjusting between vertical bar 22
During spacing also can becoming larger and become larger with vertical bar 22, reduce and reduce, be then put into the raw metal after thawing
In feed inlet 3, the raw metal after melting at this time is entered in crushing block 4 and connecting rod 6 by feed inlet 3, then passes through crushing block 4
The discharge port 5 of lower end enters in solvent drum 7, the solution slip inside connecting rod 6 at this time, then passes through connecting rod 6 and solvent
The discharge port 5 of 7 lower ends of cylinder enters in solvent inlet 10, and is entered in solvent shower nozzle 9 by solvent inlet 10, in the process,
Because arranging between crushing block 4 and solvent drum 7 in one-to-one correspondence, and certain spacing is equipped between it, it can be to its solution under
Certain heat dissipation is carried out during falling, and can avoid the case where splashing during the falling process, so that solution thickness
It uniformly flow in die box 24, next opens simultaneously power switch, and air blower 12 and condenser 15 are started to work at this time, air inlet
Extraneous air rapidly suck under the action of external world's work and is protected in chamber 11 by pipe 13 and discharge pipe 14, and by condenser 15
The cold air that work generates is delivered in placement pipe 17 by duct set 16, then by disposing pipe 17 to be delivered in outlet air spray head 18,
And the inside for making cold air uniformly be full of entire ingot casting chamber 1 avoids it conducive to its internal temperature is reduced within a certain period of time
Inside because cool down it is too fast make metal abrasive surface uneven phenomenon occur, conducive to guarantee mould cast perfection,
Secondary that the state of a sealing is in inside ingot casting chamber 1 in the process, internal hot gas and cold air pass through 28 row of gas collecting tube
Enter in gas collection water tank 27, the gas for avoiding it internal directly volatilizees in air, avoids polluting the environment, last to be cooled
After moulding, turning off the power switch, air blower 12 and condenser 15 stop working at this time, then open the door of 1 front side of ingot casting chamber,
Die box 24 is taken out according to the method described above, then another die box 24 is put into and is fixed according to the method described above, is so recycled past
It is multiple, conducive to the ingot casting efficiency for increasing metal, using for entire metallurgical industry ingot casting cooling integration device is completed like this
Journey.
While there has been shown and described that the embodiments of the present invention, for those of ordinary skill in the art and say,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (9)
1. a kind of metallurgical industry ingot casting cooling integration device, including ingot casting chamber (1), connecting rod (6), protection chamber (11) and erect
Bar (22), it is characterised in that: the upper end of the ingot casting chamber (1) is fixed with partition (2), and the upper end of partition (2) is provided with charging
Mouth (3), the lower end two sides of the feed inlet (3) are mounted on crushing block (4), and the lower end of crushing block (4) offers discharge port
(5), the connecting rod (6) is mounted between crushing block (4), and the end of crushing block (4) passes through reinforcing bar (8) and solvent shower nozzle
(9) it connects, protection chamber (11) is mounted on the left side of ingot casting chamber (1), and the inside of chamber (11) is protected to be equipped with air blower
(12), the inner bottom of the ingot casting chamber (1) is equipped with bearing plate (19), and the upper ends of bearing plate (19) have die box
(24), the end of the vertical bar (22) is connect by sliding block (25) with bearing plate (19), and the inside of bearing plate (19) offers
Sliding slot (20) is equipped with gas collection water tank (27) on the right side of the ingot casting chamber (1), and the input terminal of gas collection water tank (27) is connected with collection
Tracheae (28).
2. a kind of metallurgical industry according to claim 1 ingot casting cooling integration device, it is characterised in that: the extruding
Block (4) is disposed with two groups about the substantially symmetrical about its central axis of partition (2), and the inside of crushing block (4) is hollow shape structure, and is squeezed
In perforation shape structure between block (4) and feed inlet (3).
3. a kind of metallurgical industry according to claim 1 ingot casting cooling integration device, it is characterised in that: the reinforcing
Bar (8) is in " river " font structure, and to be fixedly connected between reinforcing bar (8) and solvent shower nozzle (9), and solvent shower nozzle (9)
Top is provided with solvent inlet (10).
4. a kind of metallurgical industry according to claim 3 ingot casting cooling integration device, it is characterised in that: the solvent
It is equipped with above import (10) solvent drum (7), and solvent drum (7) is pyramidal structure, and solvent inlet (10) and solvent drum
(7) in one-to-one correspondence arrangement between.
5. a kind of metallurgical industry according to claim 1 ingot casting cooling integration device, it is characterised in that: the air blast
The left and right output end of machine (12) is connected separately with blast pipe (13) and discharge pipe (14), and the right of air blower (12) be equipped with it is cold
Condenser (15), and the output end of condenser (15) is connected with duct set (16).
6. a kind of metallurgical industry according to claim 5 ingot casting cooling integration device, it is characterised in that: the collection wind
The output end of pipe (16) is connected with placement pipe (17), and disposes the output end of pipe (17) to be provided with outlet air spray head (18), and collect
Air hose (16) and placement pipe (17) are in perforation integral structure, while outlet air spray head (18) is equally arranged.
7. a kind of metallurgical industry according to claim 1 ingot casting cooling integration device, it is characterised in that: the load-bearing
To be slidably connected between plate (19) and vertical bar (22), and the length phase of the distance of the horizontal sliding of bearing plate (19) and sliding slot (20)
Together, and bearing plate (19) is elastic extension structure.
8. a kind of metallurgical industry according to claim 1 ingot casting cooling integration device, it is characterised in that: the vertical bar
(22) it is equipped between cross bar (21), and cross bar (21) and vertical bar (22) are arranged symmetrically, and it constitutes " net " font structure.
9. a kind of metallurgical industry according to claim 8 ingot casting cooling integration device, it is characterised in that: the vertical bar
(22) surface offers caulking groove (23), and to be flexibly connected between cross bar (21) and vertical bar (22), and the two of cross bar (21)
Side is provided with latch segment (26).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201820822193.2U CN208495734U (en) | 2018-05-30 | 2018-05-30 | A kind of metallurgical industry ingot casting cooling integration device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201820822193.2U CN208495734U (en) | 2018-05-30 | 2018-05-30 | A kind of metallurgical industry ingot casting cooling integration device |
Publications (1)
Publication Number | Publication Date |
---|---|
CN208495734U true CN208495734U (en) | 2019-02-15 |
Family
ID=65294552
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201820822193.2U Expired - Fee Related CN208495734U (en) | 2018-05-30 | 2018-05-30 | A kind of metallurgical industry ingot casting cooling integration device |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN208495734U (en) |
-
2018
- 2018-05-30 CN CN201820822193.2U patent/CN208495734U/en not_active Expired - Fee Related
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN108580816A (en) | A kind of metallurgical industry ingot casting cooling integration device | |
CN207695584U (en) | A kind of aluminium ingot production cooling device | |
CN102240785B (en) | Continuous casting machine for electrode plate grid of lead-acid storage battery | |
CN208678740U (en) | Waste gas produced device when a kind of processing melting waste aluminum | |
CN208214283U (en) | A kind of novel aluminum casting low pressure casting system | |
CN218489007U (en) | Injection molding device for bottle cap production | |
CN211437992U (en) | Sand casting cold core mould | |
CN208495735U (en) | A kind of aluminium processing circulation discharging device | |
CN209334703U (en) | A kind of casting molds with quick cooling function | |
CN208495734U (en) | A kind of metallurgical industry ingot casting cooling integration device | |
CN205732905U (en) | A kind of accurate rapid molding device of magnet strip | |
CN109500367B (en) | Automatic overturning and resetting mechanism for ferroalloy water-cooled casting template | |
CN207840067U (en) | A kind of aluminum alloy die-casting die | |
CN215638935U (en) | Continuous casting billet sensible heat energy recycling device | |
CN212526019U (en) | Vacuum vibration casting molding system | |
CN209632102U (en) | A kind of iron alloy water-cooling formula mold plate water flowing mechanism | |
CN109570475B (en) | Water-through mechanism of ferroalloy water-cooled casting die plate | |
CN206763878U (en) | A kind of die casting machine protector | |
CN207756852U (en) | A kind of casting pattern of gray cast iron hub shell | |
CN207963505U (en) | A kind of alloy product production cooling device | |
WO2020124732A1 (en) | Water circulating mechanism for water-cooled ferroalloy casting mold plate | |
CN207386485U (en) | One kind edges up warm multisection type electrical heating drying tunnel | |
CN207783241U (en) | A kind of tangent line feeding type laminar flow plasma spheroidization device | |
CN213701726U (en) | Casting case that wear-resisting casting part was used | |
CN109354387A (en) | A kind of bottle pressure blows manufacture system |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
GR01 | Patent grant | ||
GR01 | Patent grant | ||
TR01 | Transfer of patent right | ||
TR01 | Transfer of patent right |
Effective date of registration: 20190428 Address after: 366000 Xikengkou Shangping Industrial Zone, Yongan City, Sanming City, Fujian Province, 618, 628 and 688 Xilian Road Patentee after: Yongan Boyuan Industry and Trade Co., Ltd. Address before: 323600 15 Jinyang Road, yuan he street, Yunhe County, Lishui, Zhejiang Patentee before: Yunhe County donze Valve Co. Ltd. |
|
CF01 | Termination of patent right due to non-payment of annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190215 Termination date: 20210530 |