CN108747827A - Levigator waterproof construction and its waterproof method - Google Patents
Levigator waterproof construction and its waterproof method Download PDFInfo
- Publication number
- CN108747827A CN108747827A CN201810471771.7A CN201810471771A CN108747827A CN 108747827 A CN108747827 A CN 108747827A CN 201810471771 A CN201810471771 A CN 201810471771A CN 108747827 A CN108747827 A CN 108747827A
- Authority
- CN
- China
- Prior art keywords
- output shaft
- water
- ring
- spring
- transition
- 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.)
- Pending
Links
- 238000010276 construction Methods 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 title claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 75
- 230000007704 transition Effects 0.000 claims abstract description 59
- 239000000919 ceramic Substances 0.000 claims abstract description 46
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 27
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 27
- 239000010439 graphite Substances 0.000 claims abstract description 27
- 230000006835 compression Effects 0.000 claims abstract description 18
- 238000007906 compression Methods 0.000 claims abstract description 18
- 239000003292 glue Substances 0.000 claims abstract description 11
- 238000002347 injection Methods 0.000 claims abstract description 6
- 239000007924 injection Substances 0.000 claims abstract description 6
- 238000009434 installation Methods 0.000 claims description 13
- 239000004033 plastic Substances 0.000 claims description 13
- 238000005192 partition Methods 0.000 claims description 6
- 238000005452 bending Methods 0.000 claims description 4
- 229910052573 porcelain Inorganic materials 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 abstract description 6
- 238000007789 sealing Methods 0.000 description 11
- 238000010586 diagram Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/26—Sealings between relatively-moving surfaces with stuffing-boxes for rigid sealing rings
- F16J15/30—Sealings between relatively-moving surfaces with stuffing-boxes for rigid sealing rings with sealing rings made of carbon
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/34—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/34—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member
- F16J15/3436—Pressing means
- F16J15/3452—Pressing means the pressing force resulting from the action of a spring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/34—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member
- F16J15/3464—Mounting of the seal
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Details Of Gearings (AREA)
Abstract
The invention discloses a kind of levigator waterproof constructions, including gear-box, output shaft, bearing, tap, water inlet, water outlet and water mill disk, water inlet is located at output shaft upper end, water outlet and water mill disk are located at output shaft lower end, transition case is installed above gear-box, output shaft passes through transition case and gear-box, tap is mounted on transition box top, tap connects the endoporus of output shaft by a water injection pipe, ceramic stationary ring is equipped between transition bottom portion and output shaft, output shaft is equipped with the graphite rotating ring of the ceramic stationary ring of cooperation, graphite rotating ring and ceramic stationary ring are compressed by spring compression structure, transition case bottom side is equipped with apopore, ceramic stationary ring is fixed on by marine glue on transition case, and it is equipped with the first rubber sleeve between ceramic stationary ring outer ring and transition case.Present invention ensure that graphite rotating ring and ceramic stationary ring come into full contact with, good airproof performance prevents extra water from entering inside gear-box the Rapid Damage for causing machine, extends the service life of bearing and gear, reduces maintenance cost.
Description
Technical field
The present invention relates to a kind of parts of levigator more particularly to a kind of levigator waterproof constructions and its waterproof method.
Background technology
Currently, common levigator waterproof construction be typically on the upside of the output shaft and gear-box between plus a sealing element it is anti-
Water（Rubber material）, output shaft runs at high speed during the use of machine can make sealing element generate abrasion with sealing element friction,
The frictional heat generated when output shaft runs at high speed simultaneously can accelerate the aging of sealing element, and above phenomenon can cause in water flowing work
When making, when the inflow of water inlet is more than the water yield of water outlet, extra water can be by between output shaft and sealing element
Gap enters inside gear-box the Rapid Damage for causing machine（It is usually used just to will appear this problem after 80-100 hours）, shorten
The service life of gear-box increases maintenance cost.
Invention content
The present invention provides a kind of ceramic stationary ring with first to solve above-mentioned defect existing in the prior art and deficiency
Rubber sleeve and marine glue are fixed on transition case, and graphite rotating ring is compressed by spring compression structure and ceramic stationary ring, it is ensured that the two
It comes into full contact with, prevents extra water from entering the Rapid Damage for causing machine inside gear-box between output shaft and transition case, prolong
The service life of long bearing and gear reduces the levigator waterproof construction and its waterproof method of maintenance cost.
Technical scheme of the present invention：A kind of levigator waterproof construction, including gear-box, output shaft, bearing, tap, into
The mouth of a river, water outlet and water mill disk, the water inlet are located at output shaft upper end, and the water outlet and water mill disk are located under output shaft
End, the gear-box top are equipped with transition case, and the output shaft passes through transition case and gear-box, the tap to be mounted on
Box top is crossed, and tap connects the endoporus of output shaft by a water injection pipe, is equipped between transition bottom portion and output shaft
Ceramic stationary ring, the output shaft are equipped with the graphite rotating ring of the ceramic stationary ring of cooperation, and the graphite rotating ring and ceramic stationary ring pass through bullet
Spring pressing structure compresses, and the transition case bottom side is equipped with apopore, and the ceramics stationary ring is fixed on transition by marine glue
On case, and the first rubber sleeve is equipped between ceramic stationary ring outer ring and transition case.
The ceramic stationary ring of the present invention is fixed on the first rubber sleeve and marine glue on transition case, graphite rotating ring（Graphite rotating ring
Wear extent it is small, actual measurement wear extent be 20 hours/0.06）It is compressed by spring compression structure and ceramic stationary ring, it is ensured that graphite is dynamic
Ring and ceramic stationary ring come into full contact with, it is ensured that sealing performance prevents extra water from entering gear-box between output shaft and transition case
The Rapid Damage of machine is caused in inside, extends the service life of bearing and gear, reduces maintenance cost.
Preferably, the spring compression structure includes compressed spring, spring base, position-limited rack and the second rubber sleeve, and described
Two rubber sleeves include being located at the second horizontal segment at the top of spring base between position-limited rack, the between spring base and output shaft
Two vertical sections and the bending section between spring base bottom and graphite rotating ring.
The compression distance of compressed spring is 1.8-2mm, further ensures that graphite rotating ring and ceramic stationary ring come into full contact with, it is ensured that
Sealing performance, the design of the second rubber sleeve, it is ensured that the sealing performance between spring compression structure and output shaft.
Preferably, the spring base includes upper spring pressuring ring and lower spring pressuring ring, and the upper spring pressuring ring is equipped with cooperation
The ring spring slot of compressed spring, the lower spring pressuring ring are equipped with the spring installation base of cooperation compressed spring.
This kind of structure facilitates the installation of compressed spring, while ensuring that the compression of compressed spring is steadily reliable.
Preferably, the output shaft upper end is equipped with limit clamp spring, and the limit clamp spring is located on the upside of position-limited rack, the limit
It is equipped with gasket between frame and limit clamp spring.
This kind of structure ensures the assembly firmness of spring compression structure, further ensures that spring compression structure well by stone
Black rotating ring and ceramic stationary ring compress.
Preferably, the gear-box and transition case are separated by a partition board, and first rubber sleeve includes quiet positioned at ceramics
The first vertical section between ring outer ring and transition case and the first horizontal segment between ceramic stationary ring bottom and partition board.
This kind of structure further ensures that the sealing effect between ceramic stationary ring outer ring and transition case, prevents extra water from pottery
It is entered in gear-box between porcelain stationary ring outer ring and transition case.
Preferably, the transition box top is equipped with a plastic lid, and the tap is mounted on plastic lid, the plastic lid
Bottom is equipped with to be threadedly coupled and enclose, and the transition box top is equipped with the threaded connection mouth of matching thread clamping ring.
This kind of structure facilitates the installation of tap, while ensuring the degree of firmly installing of plastic lid.
Preferably, tap installation base is equipped at the top of the plastic lid, the tap bottom is equipped with threaded connection section,
The tap installation base is internally provided with the threaded connection hole of matching thread linkage section.
This kind of structure ensures the degree of firmly installing of tap.
A kind of waterproof method of levigator waterproof construction, includes the following steps：When water flowing works, water discharge of water faucet passes through note
Water pipe enters the endoporus of output shaft, output shaft bottom water outlet to water mill disk, when the inflow of water inlet is more than the water outlet of water outlet
When amount, the endoporus of output shaft is filled by water, and extra water is flowed out at the top of output shaft in transition case, passes through transition bottom portion
The apopore of side flows out to outside, and ceramic stationary ring is fixed on the first rubber sleeve and marine glue on case, and graphite rotating ring passes through bullet
Spring pressing structure and ceramic stationary ring compress, it is ensured that the two comes into full contact with, prevent extra water between output shaft and transition case into
Enter in gear-box.
The ceramic stationary ring of the present invention is fixed on the first rubber sleeve and marine glue on transition case, graphite rotating ring（Graphite rotating ring
Wear extent it is small, actual measurement wear extent be 20 hours/0.06）It is compressed by spring compression structure and ceramic stationary ring, it is ensured that graphite is dynamic
Ring and ceramic stationary ring come into full contact with, it is ensured that sealing performance prevents extra water from entering gear-box between output shaft and transition case
The Rapid Damage of machine is caused in inside, extends the service life of bearing and gear, reduces maintenance cost.
Description of the drawings
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the structural schematic diagram of the first rubber sleeve in the present invention；
Fig. 3 is the structural schematic diagram of the second rubber sleeve in the present invention；
1. gear-box in figure, 2. transition casees, 3. output shafts, 4. water mill disks, 5. taps, 6. plastic lids, 7. water injection pipes, 8. limits
Clamp spring, 9. gaskets, 10. position-limited racks, 11. first rubber sleeves, 12. second rubber sleeves, 13. graphite rotating rings, 14. ceramic stationary rings, 15.
Tap installation base, 16. threaded connection sections, 17. threaded connection holes, 18. be threadedly coupled circle, 19. be threadedly coupled mouths, 20. every
Plate, 21. first horizontal segments, 22. first vertical sections, 23. second horizontal segments, 24. second vertical sections, 25. bending sections, 26. compressions
Spring, spring pressuring ring on 27., 28. times spring pressuring rings, 29. apopores, 30. bearings, 31. ring spring slots, the installation of 32. springs
Boss.
Specific implementation mode
The invention will now be described in further detail with reference to the accompanying drawings, but is not the limit to the scope of the present invention
System.
As shown in Figs. 1-3, a kind of levigator waterproof construction, including gear-box 1, output shaft 3, bearing 30, tap 5, into
The mouth of a river, water outlet and water mill disk 4, water inlet are located at 3 upper end of output shaft, and water outlet and water mill disk 4 are located at 3 lower end of output shaft.Tooth
1 top of roller box is equipped with transition case 2, and output shaft 3 passes through transition case 2 and gear-box 1, tap 5 to be mounted on 2 top of transition case,
And tap 5 connects the endoporus of output shaft 3 by a water injection pipe 7, and ceramic stationary ring is equipped between 2 bottom of transition case and output shaft 3
14, output shaft 3 is equipped with the graphite rotating ring 13 of cooperation ceramics stationary ring 14, and graphite rotating ring 13 and ceramic stationary ring 14 pass through spring compression
Structure compresses, and 2 bottom side of transition case is equipped with apopore 29, and ceramic stationary ring 14 is fixed on by marine glue on transition case 2, and makes pottery
The first rubber sleeve 11 is equipped between 14 outer ring of porcelain stationary ring and transition case 2.Spring compression structure include compressed spring 26, spring base,
Position-limited rack 10 and the second rubber sleeve 12, the second rubber sleeve 12 include being located at the top of spring base and the second level between position-limited rack 10
Section 23, the second vertical section 24 between spring base and output shaft 3 and between spring base bottom and graphite rotating ring 13
Bending section 25.Spring base includes upper spring pressuring ring 27 and lower spring pressuring ring 28, and upper spring pressuring ring 27 is equipped with cooperation compression bullet
The ring spring slot 31 of spring 26, lower spring pressuring ring 28 are equipped with the spring installation base 32 of cooperation compressed spring 26.On output shaft 3
End is equipped with limit clamp spring 8, and limit clamp spring 8 is located at 10 upside of position-limited rack, gasket 9 is equipped between position-limited rack 10 and limit clamp spring 8.Tooth
Roller box 1 and transition case 2 are separated by a partition board 20, the first rubber sleeve 11 include be located at ceramic 14 outer ring of stationary ring and transition case 2 it
Between the first vertical section 22 and the first horizontal segment 21 between 14 bottom of ceramic stationary ring and partition board 20.2 top of transition case is set
There are a plastic lid 6, tap 5 to be mounted on plastic lid 6,6 bottom of plastic lid, which is equipped with, is threadedly coupled circle 18, and 2 top of transition case is set
There is the threaded connection mouth 19 of matching thread clamping ring 18.6 top of plastic lid is equipped with tap installation base 33,5 bottom of tap
Equipped with threaded connection section 16, tap installation base 33 is internally provided with the threaded connection hole 17 of matching thread linkage section 16.
A kind of waterproof method of levigator waterproof construction, includes the following steps：When water flowing works, water discharge of water faucet passes through note
Water pipe enters the endoporus of output shaft, output shaft bottom water outlet to water mill disk, when the inflow of water inlet is more than the water outlet of water outlet
When amount, the endoporus of output shaft is filled by water, and extra water is flowed out at the top of output shaft in transition case, passes through transition bottom portion
The apopore of side flows out to outside, and ceramic stationary ring is fixed on the first rubber sleeve and marine glue on case, and graphite rotating ring passes through bullet
Spring pressing structure and ceramic stationary ring compress, it is ensured that the two comes into full contact with, prevent extra water between output shaft and transition case into
Enter in gear-box.
The ceramic stationary ring of the present invention is fixed on the first rubber sleeve and marine glue on transition case, graphite rotating ring（Graphite rotating ring
Wear extent it is small, actual measurement wear extent be 20 hours/0.06）It is compressed by spring compression structure and ceramic stationary ring, it is ensured that graphite is dynamic
Ring and ceramic stationary ring come into full contact with, it is ensured that sealing performance prevents extra water from entering gear-box between output shaft and transition case
The Rapid Damage of machine is caused in inside, extends the service life of bearing and gear, reduces maintenance cost.
Claims (8)
1. a kind of levigator waterproof construction, including gear-box, output shaft, bearing, tap, water inlet, water outlet and water mill disk,
The water inlet is located at output shaft upper end, and the water outlet and water mill disk are located at output shaft lower end, it is characterised in that：The gear
Transition case is installed above case, the output shaft passes through transition case and gear-box, the tap to be mounted on transition box top, and
Tap connects the endoporus of output shaft by a water injection pipe, and ceramic stationary ring, institute are equipped between transition bottom portion and output shaft
The graphite rotating ring that output shaft is equipped with the ceramic stationary ring of cooperation is stated, the graphite rotating ring and ceramic stationary ring pass through spring compression structure pressure
Tightly, the transition case bottom side is equipped with apopore, and the ceramics stationary ring is fixed on by marine glue on transition case, and ceramics are quiet
The first rubber sleeve is equipped between ring outer ring and transition case.
2. a kind of levigator waterproof construction according to claim 1, it is characterised in that：The spring compression structure includes pressure
Contracting spring, spring base, position-limited rack and the second rubber sleeve, second rubber sleeve include being located at the top of spring base between position-limited rack
The second horizontal segment, the second vertical section between spring base and output shaft and positioned at spring base bottom and graphite rotating ring it
Between bending section.
3. a kind of levigator waterproof construction according to claim 2, it is characterised in that：The spring base includes upper spring pressure
Circle and lower spring pressuring ring, the upper spring pressuring ring is equipped with the ring spring slot of cooperation compressed spring, on the lower spring pressuring ring
Spring installation base equipped with cooperation compressed spring.
4. a kind of levigator waterproof construction according to claim 2, it is characterised in that：The output shaft upper end is equipped with limit
Clamp spring, the limit clamp spring are located on the upside of position-limited rack, and gasket is equipped between the position-limited rack and limit clamp spring.
5. a kind of levigator waterproof construction according to claim 1, it is characterised in that：The gear-box and transition case pass through
One partition board separates, and first rubber sleeve includes the first vertical section being located between ceramic stationary ring outer ring and transition case and positioned at pottery
First horizontal segment between porcelain stationary ring bottom and partition board.
6. a kind of levigator waterproof construction according to claim 1, it is characterised in that：The transition box top is equipped with a modeling
Material lid, the tap are mounted on plastic lid, and the plastic lid bottom is equipped with to be threadedly coupled and enclose, and the transition box top is equipped with
The threaded connection mouth of matching thread clamping ring.
7. a kind of levigator waterproof construction according to claim 6, it is characterised in that：The fire hose is equipped at the top of the plastic lid
Head installation base, the tap bottom are equipped with threaded connection section, and the tap installation base is internally provided with matching thread company
Connect the threaded connection hole of section.
8. a kind of waterproof method of the levigator waterproof construction described in claim 6, it is characterised in that：It includes the following steps：
When water flowing works, water discharge of water faucet enters the endoporus of output shaft by water injection pipe, and output shaft bottom is discharged to water mill disk, works as water inlet
When the inflow of mouth is more than the water yield of water outlet, the endoporus of output shaft is filled by water, and extra water is flowed from the top of output shaft
Go out into transition case, outside, ceramic stationary ring the first rubber sleeve and waterproof are flowed out to by the apopore of transition case bottom side
Glue is fixed on case, and graphite rotating ring is compressed by spring compression structure and ceramic stationary ring, it is ensured that the two comes into full contact with, and it is extra to prevent
Water between output shaft and transition case enter gear-box in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810471771.7A CN108747827A (en) | 2018-05-17 | 2018-05-17 | Levigator waterproof construction and its waterproof method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810471771.7A CN108747827A (en) | 2018-05-17 | 2018-05-17 | Levigator waterproof construction and its waterproof method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108747827A true CN108747827A (en) | 2018-11-06 |
Family
ID=64006859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810471771.7A Pending CN108747827A (en) | 2018-05-17 | 2018-05-17 | Levigator waterproof construction and its waterproof method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108747827A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2575377Y (en) * | 2002-10-22 | 2003-09-24 | 李如良 | Automatic regulating temperature valve for warming |
| CN2623406Y (en) * | 2003-06-30 | 2004-07-07 | 曾郁升 | Portable waterproof water mill |
| US20050229983A1 (en) * | 2004-04-16 | 2005-10-20 | Kuching International Ltd. | Water inlet/outlet structure for ceramic shaft of single-handled faucet |
| TW201038846A (en) * | 2010-06-11 | 2010-11-01 | Chang Yi Shin Entpr Co Ltd | Water control core base structure having inducing and manually mixing outflow |
| CN205605488U (en) * | 2016-05-11 | 2016-09-28 | 瓦房店中兴水泵厂 | Mechanical seal device |
| CN206953333U (en) * | 2017-07-28 | 2018-02-02 | 晋江市陆钢塑料机械有限公司 | A kind of underwater cutpellet device |
| CN208304790U (en) * | 2018-05-17 | 2019-01-01 | 浙江精力工具有限公司 | A kind of levigator waterproof construction |
-
2018
- 2018-05-17 CN CN201810471771.7A patent/CN108747827A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2575377Y (en) * | 2002-10-22 | 2003-09-24 | 李如良 | Automatic regulating temperature valve for warming |
| CN2623406Y (en) * | 2003-06-30 | 2004-07-07 | 曾郁升 | Portable waterproof water mill |
| US20050229983A1 (en) * | 2004-04-16 | 2005-10-20 | Kuching International Ltd. | Water inlet/outlet structure for ceramic shaft of single-handled faucet |
| TW201038846A (en) * | 2010-06-11 | 2010-11-01 | Chang Yi Shin Entpr Co Ltd | Water control core base structure having inducing and manually mixing outflow |
| CN205605488U (en) * | 2016-05-11 | 2016-09-28 | 瓦房店中兴水泵厂 | Mechanical seal device |
| CN206953333U (en) * | 2017-07-28 | 2018-02-02 | 晋江市陆钢塑料机械有限公司 | A kind of underwater cutpellet device |
| CN208304790U (en) * | 2018-05-17 | 2019-01-01 | 浙江精力工具有限公司 | A kind of levigator waterproof construction |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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Application publication date: 20181106 |