CN201517204U - Dedicated cleaning nozzle for porous bituminous pavement - Google Patents
Dedicated cleaning nozzle for porous bituminous pavement Download PDFInfo
- Publication number
- CN201517204U CN201517204U CN2009200351110U CN200920035111U CN201517204U CN 201517204 U CN201517204 U CN 201517204U CN 2009200351110 U CN2009200351110 U CN 2009200351110U CN 200920035111 U CN200920035111 U CN 200920035111U CN 201517204 U CN201517204 U CN 201517204U
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- Prior art keywords
- water pipe
- spray boom
- water
- special
- shower nozzle
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- 238000004140 cleaning Methods 0.000 title abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 106
- 239000007921 spray Substances 0.000 claims abstract description 42
- 238000007789 sealing Methods 0.000 claims abstract description 12
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 6
- 239000010426 asphalt Substances 0.000 abstract 1
- 238000003912 environmental pollution Methods 0.000 abstract 1
- 238000011010 flushing procedure Methods 0.000 description 7
- 230000008859 change Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000002344 surface layer Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 235000012489 doughnuts Nutrition 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
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Abstract
本实用新型公开了一种多孔性沥青路面专用清洗喷头，包括电动机，所述电动机动力输出轴与阶梯轴相连接，该阶梯轴下端穿过密封箱上壁并与水管一相连接，该水管一上侧壁设置有过水孔，水管一通过T形水管接头与水管二和水管三相连接，水管二通过水管软接头一与喷杆一相连接，水管三通过水管软接头二与喷杆二相连接，所述喷杆一与水管一之间铰接有液压伸缩臂一，喷杆二与水管一之间铰接有液压伸缩臂二，所述喷杆一和喷杆二下侧壁均设置有多个高压喷嘴，所述密封箱与高压水管相连通。本实用新型有如下特点：结构简单、易于实现模块化、节水节能、工作效率高、不会污染环境、清洗效果好、能有效地清除路面空隙的堵塞物、不损伤路面结构。
The utility model discloses a special cleaning nozzle for porous asphalt pavement, which comprises a motor, the power output shaft of the motor is connected with a stepped shaft, the lower end of the stepped shaft passes through the upper wall of a sealing box and is connected with a water pipe, and the water pipe is connected with a water pipe The upper side wall is provided with a water hole, the first water pipe is connected to the second water pipe and the third water pipe through the T-shaped water pipe joint, the second water pipe is connected to the first spray rod through the first flexible joint of the water pipe, and the third water pipe is connected to the second spray rod through the second flexible joint of the water pipe The hydraulic telescopic arm 1 is hinged between the spray rod 1 and the water pipe 1, and the hydraulic telescopic arm 2 is hinged between the spray rod 2 and the water pipe 1. The lower side walls of the spray rod 1 and the spray rod 2 are equipped with a plurality of high-pressure nozzles, and the sealed box communicates with the high-pressure water pipe. The utility model has the following characteristics: simple structure, easy realization of modularization, water saving and energy saving, high working efficiency, no environmental pollution, good cleaning effect, effective removal of blockages in the gaps of the road surface, and no damage to the road surface structure.
Description
Technical field
The utility model relates to a kind of road maintenance road surface cleaning equipment, is specifically related to the special-purpose shower nozzle that cleans of a kind of porosity flexible pavement.
Background technology
The water permeability that the porosity flexible pavement is had makes it can in time drain surface gathered water in the rainy day, can prevent that sealing floats on the one hand, reduces water smoke and dazzle, increases the safety and the comfortableness of road; When heavy showers, the pavement runoff amount is unlikely to rapid increase on the other hand, is not prone to peak value, has alleviated the burden of urban sewerage and drainage system; Simultaneously, can make part precipitation infiltrate the face of land, replenish underground water, improve ecology and human settlement.In addition, the porosity flexible pavement also has the effect of good reduction noise.Therefore, it especially obtains application more and more widely in road construction in the urban road.
Because the porosity flexible pavement has advantages such as water permeability is superior, the reduction noise result is good, its proportion in China's urban road rises year by year, but the space of porosity flexible pavement is big (void content is generally 15%～25%), therefore be easy to be subjected to the obstruction of chips such as ambient dust, doughnut rubber powder, organic substance, thereby influence its road function.How to maintain, to make it to keep good pervious function in certain design period to water-permeable pavement is the common problem of paying close attention to of domestic and international researcher.In order to prevent that the space, road surface from stopping up, keep the surface layer deposit-free, need special equipment, as high-pressure sewer flushing vehicle etc., carry out periodic maintenance and clean.And common road is big with high-pressure sewer flushing vehicle complex structure, complex operation, energy consumption, it cleans shower nozzle inefficiency, can not remove the obstruction in space, road surface effectively, and the functional performance on its road surface can't return to rational service range.
The utility model content
The purpose of this utility model is to overcome above-mentioned deficiency of the prior art, provide a kind of porosity flexible pavement the special-purpose shower nozzle that cleans, it is simple in structure, easy to operate, be easy to realize modular arrangements, the obstruction, the cleaning performance that do not pollute the environment, can remove effectively the space, road surface simultaneously are good, can not damage again road structure, volume small and exquisite, be convenient to carry, save water and energy, high efficiency, and cost of production is low, is convenient to promote the use of.
For achieving the above object, the technical solution adopted in the utility model is: the special-purpose shower nozzle that cleans of a kind of porosity flexible pavement, comprise motor, it is characterized in that: described motor power output shaft is connected with multidiameter, this multidiameter lower end is passed the stuffing box upper wall and is connected with water pipe one, this water pipe one upper side wall is provided with water hole, water pipe one is connected with water pipe three with water pipe two by the water pipe head of T shape, water pipe two is connected with spray boom one by water pipe connecting hose one, water pipe three is connected with spray boom two by water pipe connecting hose two, be hinged with hydraulic telescopic arm one between described spray boom one and the water pipe one, be hinged with hydraulic telescopic arm two between spray boom two and the water pipe one, described spray boom one and spray boom two lower wall are provided with a plurality of high pressure nozzles, and described stuffing box is connected with high-pressure water pipe.
Be provided with sealing ring one between described stuffing box and the water pipe one, be disposed with bearing and sealing ring two between described stuffing box and the multidiameter, the bearing upside is provided with back-up ring.
Described high pressure nozzle inside is provided with inlet opening and weep hole, is provided with chamfering between inlet opening and the weep hole, and the high pressure nozzle water side is provided with the V-type grooving.
Angle of inclination between described high pressure nozzle and the multidiameter is 40 °.
Described motor is a slow-speed motor.
Described motor power output shaft is connected with multidiameter by shaft coupling.
Described high pressure nozzle and spray boom one and spray boom two are connected by screw thread.
The utility model compared with prior art has the following advantages:
(1) simple in structure, easy to operate.The special-purpose cleaning of the utility model porosity flexible pavement nozzle structure is simple, is easy to realize modular arrangements; Operating personnel only need simple study to get final product independent complete operation simultaneously, and are very easy;
(2) volume is small and exquisite, is convenient to carrying.The special-purpose cleaning of the utility model porosity flexible pavement shower nozzle volume is little, in light weight, is convenient to install, transport;
(3) save water and energy, high efficiency does not pollute the environment simultaneously.Save water and energy with high-pressure sewer flushing vehicle with respect to common road when the special-purpose cleaning of the utility model porosity flexible pavement shower nozzle is worked, experiment shows that the special-purpose operating efficiency of cleaning shower nozzle of this porosity flexible pavement is 2-4 times that high-pressure sewer flushing vehicle shower nozzle operating efficiency is used on common road;
(4) controllability, compliance are strong.Chocking-up degree and job status according to the road surface can be regulated the rotating speed of motor and the pressure of high-pressure hydraulic pump voluntarily, can realize digital program controlled; Therefore, this device is applicable to the road surface of different blockage, and compliance is stronger;
(5) cleaning performance good, can remove the obstruction in space, road surface effectively, the road surface after the cleaning does not need to carry out other clean processing.The special-purpose cleaning of the utility model porosity flexible pavement shower nozzle is provided with the nozzle of fixed angle, can remove the obstruction in space, road surface effectively from the high-pressure spray water of nozzle ejection, and the road surface after cleaning does not need to carry out other clean processing;
(6) can not damage road structure.During the special-purpose cleaning of the utility model porosity flexible pavement shower nozzle operate as normal, can select the water under high pressure of convenient pressure grade as required, jet cleans the road surface can not damage road structure;
(7) cost of production low, be convenient to promote the use of.The special-purpose cleaning of this porosity flexible pavement nozzle structure is simple, and its element is easy to produce, buy, so cost is lower, is convenient to promote the use of.Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Description of drawings
Fig. 1 is an overall structure schematic diagram of the present utility model.
Fig. 2 is the sectional view of the utility model stuffing box inside.
Fig. 3 is the front view of the utility model high pressure nozzle.
Fig. 4 is the A-A sectional view of Fig. 3.
Fig. 5 is the B-B sectional view of Fig. 3.
Description of reference numerals:
The 1-motor; The 2-multidiameter; The 3-stuffing box;
4-water pipe one; The water pipe head of 5-T shape; 6-water pipe two;
7-water pipe three; 8-water pipe connecting hose one; 9-spray boom one;
10-water pipe connecting hose two; 11-spray boom two; 12-hydraulic telescopic arm one;
13-hydraulic telescopic arm two; The 14-high pressure nozzle; 15-sealing ring one;
The 16-bearing; 17-sealing ring two; The 18-back-up ring;
The 19-high-pressure water pipe; The 20-inlet opening; The 21-weep hole;
The 22-water hole.
The specific embodiment
As Fig. 1, the special-purpose shower nozzle that cleans of a kind of porosity flexible pavement shown in Figure 2, comprise motor 1, described motor 1 power output shaft is connected with multidiameter 2, these multidiameter 2 lower ends are passed stuffing box 3 upper walls and are connected with water pipe 1, these water pipe one 4 upper side walls are provided with water hole 22, water pipe 1 is connected with water pipe 37 with water pipe 26 by the water pipe head 5 of T shape, water pipe 26 is connected with spray boom 1 by water pipe connecting hose 1, water pipe 37 is connected with spray boom 2 11 by water pipe connecting hose 2 10, be hinged with hydraulic telescopic arm 1 between described spray boom 1 and the water pipe 1, be hinged with hydraulic telescopic arm 2 13 between spray boom 2 11 and the water pipe 1, described spray boom 1 and spray boom 2 11 lower wall are provided with a plurality of high pressure nozzles 14, and described stuffing box 3 is connected with high-pressure water pipe 19.This water pipe connecting hose 1 and water pipe connecting hose 2 10 all are made up of waterproofing course, steel wire tube, rubber tube respectively from the inside to surface, and good airproof performance, flexible, shower nozzle also can bear certain moment loading when rotating.
As shown in Figure 2, be provided with sealing ring 1 between described stuffing box 3 and the water pipe 1, be disposed with bearing 16 and sealing ring 2 17 between described stuffing box 3 and the multidiameter 2, bearing 16 upsides are provided with back-up ring 18.Sealing ring 1 and sealing ring 2 17 can prevent effectively that water under high pressure from oozing dew from stuffing box 3, and bearing 16 can guarantee to rotate between stuffing box 3 and the multidiameter 2 smoothly smooth, and back-up ring 18 can prevent that bearing 16 from coming off.
As Fig. 3, Fig. 4 and shown in Figure 5, described high pressure nozzle 14 inside are provided with inlet opening 20 and weep hole 21, are provided with chamfering between inlet opening 20 and the weep hole 21, and high pressure nozzle 14 water sides are provided with the V-type grooving.Transition chamfering between inlet opening 20 and the weep hole 21 can make the change in size of runner contraction place (inlet opening 20 and weep hole 21 junctions) mild, and water under high pressure flowing in runner is milder smooth and easy, increases water jets outlet dynamic pressure.High-pressure spray water that the V-type grooving can make high pressure nozzle 14 ejection is set in high pressure nozzle 14 water sides is the low-angle fan-shaped and distributes, the flushing area is bigger, cleaning performance is better.
As shown in Figure 1, the angle of inclination between described high pressure nozzle 14 and the multidiameter 2 is 40 °.The high-speed jet water column is ejected into the road surface with certain angle, and the obstruction of inside, road pavement space plays the punching press effect in vertical direction, and the bigger particle of table that can satisfy the need on the horizontal direction plays push effect.In the punching press of high-speed jet water column with squeeze to push away and to make obstruction pass through Lu Biao under the reciprocation or more effectively discharge in the surface layer space, rotary nozzle can make the water impact effect that a bit is subjected to a plurality of directions on the road surface arbitrarily simultaneously, and table space, road can access more comprehensively flushing.
Described motor 1 is a slow-speed motor.
Described motor 1 power output shaft is connected with multidiameter 2 by shaft coupling.
Described high pressure nozzle 14 and spray boom 1 and spray boom 2 11 are connected by screw thread.
The special-purpose course of work of cleaning shower nozzle of the utility model porosity flexible pavement is:
At first with two porosity flexible pavements special-purpose clean shower nozzles by the fixed support bilateral symmetry parallel be installed in the high-pressure sewer flushing vehicle front portion, the spacing of two axis of rotation is about 1.9 meters, the mounting distance of axis of rotation and car front bumper is 1 meter.Vehicle when nonclient area travels in order to protect shower nozzle to pack up spray boom 1 and spray boom 2 11 by hydraulic telescopic arm 1 and hydraulic telescopic arm 2 13; Put down hydraulic telescopic arm 1 and hydraulic telescopic arm 2 13 during operation, make spray boom 1 and spray boom 2 11 substantially parallel with the road surface, this moment, high pressure nozzle 14 water sides were about 25 centimeters apart from the road surface.
Actuating motor 1, the special-purpose shower nozzle that cleans of porosity flexible pavement begins to rotate under the drive of motor 1, open high-pressure hydraulic pump, water under high pressure flows in the stuffing box 3 through high-pressure water pipe 19, flow in the water pipe 1 through water hole 22 then, one road flow through water pipe 26, water pipe connecting hose 1 and spray boom 1 after T shape water pipe head 5 shunting, from high pressure nozzle 14 ejections, another road flow through water pipe 37, water pipe connecting hose 2 10 and spray boom 2 11, from high pressure nozzle 14 ejections, the High-Pressure Water of ejection washes the obstruction in the table space, road effectively.
Cleaning Vehicle follows the track center line with certain speed (50-80m/min is advisable) and travels during operation, two special-purpose shower nozzles that clean of porosity flexible pavement are with identical rotational speed, because spray boom 1, water pipe 26, the total length of water pipe 37 and spray boom 2 11 is near 1.5 meters, the diffusion that is had when adding the high rate of fire current through the flare nozzle, therefore the special-purpose shower nozzle that cleans of two porosity flexible pavements is ejected into the functional diameter (FD) sum of high speed water column on road surface near 3.8 meters, be enough to cover the width of one way road, vehicle is disposable can finish cleaning by runway, and cleaning effect is higher.
The above; it only is preferred embodiment of the present utility model; be not that the utility model is imposed any restrictions; every according to the utility model technical spirit to any simple modification, change and equivalent structure transformation that above embodiment did, all still belong in the protection domain of technical solutions of the utility model.
Claims (7)
1. shower nozzle is cleaned in a porosity flexible pavement special use, comprise motor (1), it is characterized in that: described motor (1) power output shaft is connected with multidiameter (2), this multidiameter (2) lower end is passed stuffing box (3) upper wall and is connected with water pipe one (4), this water pipe one (4) upper side wall is provided with water hole (22), water pipe one (4) is connected with water pipe three (7) with water pipe two (6) by T shape water pipe head (5), water pipe two (6) is connected with spray boom one (9) by water pipe connecting hose one (8), water pipe three (7) is connected with spray boom two (11) by water pipe connecting hose two (10), be hinged with hydraulic telescopic arm one (12) between described spray boom one (9) and the water pipe one (4), be hinged with hydraulic telescopic arm two (13) between spray boom two (11) and the water pipe one (4), described spray boom one (9) and spray boom two (11) lower wall are provided with a plurality of high pressure nozzles (14), and described stuffing box (3) is connected with high-pressure water pipe (19).
2. according to the special-purpose shower nozzle that cleans of the described porosity flexible pavement of claim 1, it is characterized in that: be provided with sealing ring one (15) between described stuffing box (3) and the water pipe one (4), be disposed with bearing (16) and sealing ring two (17) between described stuffing box (3) and the multidiameter (2), bearing (16) upside is provided with back-up ring (18).
3. according to the special-purpose shower nozzle that cleans of the described porosity flexible pavement of claim 1, it is characterized in that: described high pressure nozzle (14) inside is provided with inlet opening (20) and weep hole (21), be provided with chamfering between inlet opening (20) and the weep hole (21), high pressure nozzle (14) water side is provided with the V-type grooving.
4. according to the special-purpose shower nozzle that cleans of the described porosity flexible pavement of claim 1, it is characterized in that: the angle of inclination between described high pressure nozzle (14) and the multidiameter (2) is 40 °.
5. according to the special-purpose shower nozzle that cleans of the described porosity flexible pavement of claim 1, it is characterized in that: described motor (1) is a slow-speed motor.
6. according to the special-purpose shower nozzle that cleans of the described porosity flexible pavement of claim 1, it is characterized in that: described motor (1) power output shaft is connected with multidiameter (2) by shaft coupling.
7. according to the special-purpose shower nozzle that cleans of the described porosity flexible pavement of claim 1, it is characterized in that: described high pressure nozzle (14) and spray boom one (9) and spray boom two (11) are connected by screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200351110U CN201517204U (en) | 2009-10-19 | 2009-10-19 | Dedicated cleaning nozzle for porous bituminous pavement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200351110U CN201517204U (en) | 2009-10-19 | 2009-10-19 | Dedicated cleaning nozzle for porous bituminous pavement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201517204U true CN201517204U (en) | 2010-06-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200351110U Expired - Fee Related CN201517204U (en) | 2009-10-19 | 2009-10-19 | Dedicated cleaning nozzle for porous bituminous pavement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201517204U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106087840A (en) * | 2016-08-29 | 2016-11-09 | 叶青 | A kind of pneumatic type ground environmental protection lifting flusher |
| CN106192850A (en) * | 2016-08-29 | 2016-12-07 | 东莞威霸清洁器材有限公司 | A brush plate water supply balance device and a liquid separator of a floor washing vehicle |
| CN106214072A (en) * | 2016-08-29 | 2016-12-14 | 叶青 | A kind of ground environmental protection spraying mechanism |
| CN107511274A (en) * | 2017-09-30 | 2017-12-26 | 江苏云端重工科技有限公司 | A kind of waste asphalt cleaning shower nozzle |
| CN109356076A (en) * | 2018-11-23 | 2019-02-19 | 福建龙马环卫装备股份有限公司 | A kind of ladder advanceable road surface flusher and its cleaning method |
| CN110130259A (en) * | 2019-06-11 | 2019-08-16 | 内蒙古万琪机械加工有限责任公司 | A kind of mine road surface flush-type list dual channel cleaning spray boom |
| CN110847103A (en) * | 2019-10-13 | 2020-02-28 | 颖索(江苏)汽车零部件技术有限公司 | Road surface high pressure cleaning equipment |
| CN113567320A (en) * | 2021-07-23 | 2021-10-29 | 上海仁聚新材料科技有限公司 | Method and device for measuring drainage capacity in permeable pavement structure based on cross-section flow |
| CN116116799A (en) * | 2023-04-19 | 2023-05-16 | 长沙海纳光电科技有限公司 | Cleaning device for cement paste |
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2009
- 2009-10-19 CN CN2009200351110U patent/CN201517204U/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106214072B (en) * | 2016-08-29 | 2018-11-27 | 浙江金大田农林科技有限公司 | A kind of ground environmental protection spraying mechanism |
| CN106192850A (en) * | 2016-08-29 | 2016-12-07 | 东莞威霸清洁器材有限公司 | A brush plate water supply balance device and a liquid separator of a floor washing vehicle |
| CN106214072A (en) * | 2016-08-29 | 2016-12-14 | 叶青 | A kind of ground environmental protection spraying mechanism |
| CN106087840B (en) * | 2016-08-29 | 2017-12-22 | 亳州沃野知识产权服务有限公司 | A kind of pneumatic type ground environmental protection lifting flusher |
| CN106192850B (en) * | 2016-08-29 | 2018-10-12 | 东莞威霸清洁器材有限公司 | Brush disc water supply balancing device and liquid separator of ground washing vehicle |
| CN106087840A (en) * | 2016-08-29 | 2016-11-09 | 叶青 | A kind of pneumatic type ground environmental protection lifting flusher |
| CN107511274A (en) * | 2017-09-30 | 2017-12-26 | 江苏云端重工科技有限公司 | A kind of waste asphalt cleaning shower nozzle |
| CN109356076A (en) * | 2018-11-23 | 2019-02-19 | 福建龙马环卫装备股份有限公司 | A kind of ladder advanceable road surface flusher and its cleaning method |
| CN110130259A (en) * | 2019-06-11 | 2019-08-16 | 内蒙古万琪机械加工有限责任公司 | A kind of mine road surface flush-type list dual channel cleaning spray boom |
| CN110847103A (en) * | 2019-10-13 | 2020-02-28 | 颖索(江苏)汽车零部件技术有限公司 | Road surface high pressure cleaning equipment |
| CN113567320A (en) * | 2021-07-23 | 2021-10-29 | 上海仁聚新材料科技有限公司 | Method and device for measuring drainage capacity in permeable pavement structure based on cross-section flow |
| CN113567320B (en) * | 2021-07-23 | 2024-09-20 | 上海仁聚新材料科技有限公司 | Method and device for measuring internal drainage capacity of permeable pavement structure based on section flow |
| CN116116799A (en) * | 2023-04-19 | 2023-05-16 | 长沙海纳光电科技有限公司 | Cleaning device for cement paste |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100630 Termination date: 20101019 |