CN110480816A - Reinforced concrete closed guard gate fan maintenance spray system and maintenance spraying method - Google Patents
Reinforced concrete closed guard gate fan maintenance spray system and maintenance spraying method Download PDFInfo
- Publication number
- CN110480816A CN110480816A CN201910769322.5A CN201910769322A CN110480816A CN 110480816 A CN110480816 A CN 110480816A CN 201910769322 A CN201910769322 A CN 201910769322A CN 110480816 A CN110480816 A CN 110480816A
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- CN
- China
- Prior art keywords
- spray
- maintenance
- door leaf
- reinforced concrete
- chassis
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- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
- B28B11/24—Apparatus or processes for treating or working the shaped or preshaped articles for curing, setting or hardening
- B28B11/245—Curing concrete articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
- B28B11/24—Apparatus or processes for treating or working the shaped or preshaped articles for curing, setting or hardening
- B28B11/247—Controlling the humidity during curing, setting or hardening
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Working Measures On Existing Buildindgs (AREA)
Abstract
The present invention relates to a kind of reinforced concrete closed guard gates to fan maintenance spray system, comprising: controller, two maintenance areas, at least two are set to longitudinal spray track between two maintenance areas, spray vehicle, humidity detector；Spray vehicle includes: two wheel groups being located on longitudinal spray track, chassis equipped with travel driving unit, two are loaded on the detection sensor of chassis two side ends respectively, loaded on chassis and be equipped with water inlet water tank, loaded on the immersible pump in water tank, the vertical water pipe that lower end is connected to submersible pump outlet, the horizontal water tube being connected to vertical water pipe upper end, two and two one-to-one spray assemblies in maintenance area；Spray assemblies include: the spray tube that several lower ends are equipped with spray head and upper end is connected to horizontal water tube；Detection sensor, immersible pump are electrically connected with controller respectively.The reinforced concrete closed guard gate fan maintenance spray system door leaf maintenance spray time can accurately control, and judge that maintenance humidity is accurate, maintenance maintenance quality is stablized.
Description
Technical field
The present invention relates to concreting field, especially a kind of reinforced concrete closed guard gate fan conserves spray system and supports
Protect spraying method.
Background technique
Concrete performance is mainly determined by factors such as concrete component, Concrete and concrete curings；In former material
Material, match ratio and casting craft it is certain in the case where, by control maintenance humidity, curing time, to improve concrete hydrating it is hard
The performances such as change degree, strength development, durability have a major impact；Reinforced concrete closed guard gate fan needs to conserve after the completion of pouring
Spray, at present in door leaf maintenance processes by manually estimate judge door leaf whether water shortage, manual control spray moisturizing conserve, exist
Maintenance spray time cannot accurately control, and judge that door leaf humidity is not accurate enough, the unstable deficiency of door leaf maintenance quality；Therefore,
Designing a kind of spray time can accurately control, and judge that door leaf humidity is accurate, the stable armored concrete people's air defense of door leaf maintenance quality
Door leaf conserves spray system and maintenance spraying method, becomes urgent problem to be solved.
Summary of the invention
The purpose of the invention is to overcome at present in door leaf maintenance processes by manually estimate judge door leaf whether water shortage,
Manual control sprays moisturizing maintenance, and there are door leaf maintenance spray times to accurately control, and judges that door leaf humidity is not accurate enough, door
The unstable deficiency of maintenance quality is fanned, providing a kind of door leaf maintenance spray time can accurately control, and judge that door leaf humidity is accurate, door
Fan the stable reinforced concrete closed guard gate fan maintenance spray system of maintenance quality and maintenance spraying method.
The specific technical solution of the present invention is:
A kind of reinforced concrete closed guard gate fan maintenance spray system, comprising: controller, two maintenance areas disposed in parallel, at least
Two longitudinal spray tracks being set between two maintenance areas, spray vehicle, humidity detector；Spray vehicle includes: equipped with number
Identical and one-to-one correspondence is located at the wheel group on longitudinal spray track with longitudinal spray track number, equipped with travel driving unit
Chassis, two respectively be loaded on chassis two side ends detection sensor, loaded on chassis and be equipped with water inlet water tank, be loaded on water tank
In immersible pump, the vertical water pipe that lower end is connected to submersible pump outlet, the horizontal water tube being connected to vertical water pipe upper end, two with two support
Protect the one-to-one spray assemblies in area；Spray assemblies include: several lower ends be equipped be located at maintenance area above spray head and on
Hold the spray tube being connected to horizontal water tube；Detection sensor, immersible pump are electrically connected with controller respectively.The armored concrete
People's air defense door leaf conserves spray system, controls spray time, control spray vehicle automatic row on longitudinally spray track by controller
It walks, the position that enters of detection sensor detection spray vehicle goes out position, and humidity detector judges that concrete humidity, door leaf conserve spray time
It can accurately control, judge that maintenance humidity is accurate, maintenance maintenance quality is stablized.
Preferably, the maintenance area includes: the template that several pour door leaf and are arranged in the vertical direction, at least two
Support the longitudinal supporting track of template lower end, number door leaf fastening assembly identical and one-to-one with template number；Door leaf
Fastening assembly includes: the flange set on template side wall, the wedge that several are distributed along template side wall and lower end is connect with flange, a
Number pressing plate identical and one-to-one with wedge number, bolt, nut；Push down door leaf upper end, the screw rod of bolt in the inner end of pressing plate
Upper end passes through flange, wedge, pressing plate and is spirally connected with nut.Maintenance area's longitudinal supporting rail support lives template lower end, is conducive to maintenance
Water leaks downwards not ponding；Door leaf fastening assembly is simple and practical in structure.
Preferably, the humidity detector includes: that number humidity identical and one-to-one with template number passes
Sensor；Template, which is equipped with, adjusts screw hole；Humidity sensor is contacted with door leaf and is spirally connected with screw hole is adjusted；Horizontal water tube sets up separately there are two setting
Electromagnet cut off valve in vertical water pipe two sides；Humidity sensor, electromagnet cut off valve are electrically connected with controller respectively.Humidity Detection dress
The humidity sensor and adjusting screw hole set are spirally connected conducive to humidity sensor assembly and disassembly, and are conducive to well contact with door leaf.
Preferably, the travel driving unit includes: two wheel shafts with the pivot joint of chassis lower end, it is loaded on chassis lower end
Storage battery, the retarder equipped with servo motor；Wheel group includes two wheels: two wheels and two wheel shafts of a wheel group
One end connect one to one, the other end of two wheels and two wheel shafts of another wheel group connects one to one: slow down
The delivery outlet of device cover outside a wheel shaft and with wheel axis connection；Controller is connect with chassis lower end, and controller, which is equipped with, is loaded on water tank
The control panel of upper end；Storage battery, servo motor are electrically connected with controller respectively.Travel driving unit structure is simply walked precision
It is high；Controller is equipped with the control panel loaded on water tank upper end and is conducive to observation control.
Preferably, the chassis two side ends are respectively equipped with a hound；Hound upper end tilt outward and with cross
Water pipe connection.Hound is conducive to improve the strength and stiffness of horizontal water tube.
A kind of maintenance spraying method of reinforced concrete closed guard gate fan maintenance spray system, the armored concrete people's air defense
It is above-mentioned reinforced concrete closed guard gate fan maintenance spray system that door leaf, which conserves spray system, and (1) presses setting time, controller control
Servo motor starting processed, retarder drive vehicle wheel rotation through wheel shaft, and spray vehicle is made to spray track movement along longitudinal direction；(2) detection passes
Sensor detects one side of door leaf, and controller control electromagnet cut off valve is connected to and starts immersible pump, the water in water tank through vertical water pipe,
Horizontal water tube, spray tube carry out maintenance spray to door leaf from spray head ejection, and detection sensor detects another side of door leaf, diving
Pump stops working；The above movement is repeated, maintenance spray successively is carried out to door leaf；(3) humidity sensor detects the humidity of door leaf
Lower than setting value, controller controls servo motor starting, and retarder drives vehicle wheel rotation through wheel shaft, sprays spray vehicle along longitudinal direction
Track movement, detection sensor detect corresponding one side of door leaf, and controller controls the electromagnetism cut-off of side corresponding with door leaf
Valve is connected to and starts immersible pump, and the water in water tank, which is sprayed through vertical water pipe, horizontal water tube, spray tube from spray head, carries out moisturizing to door leaf
Maintenance spray, detection sensor detect another side of door leaf, and immersible pump stops working.The reinforced concrete closed guard gate fan
The maintenance spraying method for conserving spray system is able to satisfy door leaf maintenance spray time and accurately controls, judges that maintenance humidity is accurate, support
Protect the stable needs of maintenance quality.
Compared with prior art, the beneficial effects of the present invention are: the reinforced concrete closed guard gate fan maintenance spray system
System controls spray time, control spray vehicle automatically walk on longitudinally spray track, detection sensor detection spray by controller
The position that enters of leaching vehicle goes out position, and humidity detector judges that concrete humidity, door leaf maintenance spray time can accurately control, judge to conserve
Humidity is accurate, and maintenance maintenance quality is stablized.Maintenance area's longitudinal supporting rail support lives template lower end, leaks downwards conducive to curing water
Not ponding；Door leaf fastening assembly is simple and practical in structure.The humidity sensor of humidity detector is spirally connected with screw hole is adjusted conducive to wet
Sensor assembly and disassembly are spent, and are conducive to well contact with door leaf.Travel driving unit structure simply walk precision height；Controller is equipped with dress
Control panel in water tank upper end is conducive to observation control.Hound is conducive to improve the strength and stiffness of horizontal water tube.The reinforcing bar
Concrete people's air defense door leaf conserves the maintenance spraying method of spray system, is able to satisfy door leaf maintenance spray time and accurately controls, judges
Maintenance humidity is accurate, the stable needs of maintenance maintenance quality.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the invention；
Fig. 2 is the top view of Fig. 1.
In figure: controller 1, chassis 3, detection sensor 4, water inlet 5, water tank 6, immersible pump 7, erects longitudinal spray track 2
Water pipe 8, horizontal water tube 9, spray head 10, spray tube 11, door leaf 12, template 13, longitudinal supporting track 14, flange 15, wedge 16, pressure
Plate 17, nut 19, humidity sensor 20, adjusts screw hole 21, electromagnet cut off valve 22, wheel shaft 23, storage battery 24, servo electricity at bolt 18
Machine 25, retarder 26, wheel 27, control panel 28, hound 29.
Specific embodiment
The present invention is described further shown in reference to the accompanying drawing.
As shown in attached drawing 1, attached drawing 2: a kind of reinforced concrete closed guard gate fan maintenance spray system, comprising: controller 1, two
A maintenance area disposed in parallel, two longitudinal spray tracks 2 being set between two maintenance areas, spray vehicle, humidity detector；
Spray vehicle includes: identical as longitudinal spray 2 numbers of track equipped with number and corresponds the wheel being located on longitudinal spray track 2
Group, the chassis 3 equipped with travel driving unit, two are loaded on the detection sensor 4 of 3 two side ends of chassis respectively, loaded on chassis 3 and
Water tank 6 equipped with water inlet 5, loaded on the immersible pump 7 in water tank 6, the vertical water pipe 8 of lower end and 7 outlet of immersible pump, middle part with
The horizontal water tube 9 of 8 upper end of vertical water pipe connection, two and two one-to-one spray assemblies in maintenance area；Spray assemblies include: four
The spray tube 11 that lower end is equipped with the spray head 10 being located above maintenance area and upper end is connected to horizontal water tube 9；Detection sensor 4 is dived
Water pump 7 is electrically connected with controller 1 respectively.Four spray tubes 11 are transversely arranged；Detection sensor 4 is photoelectric sensor.
The maintenance area includes: 12 templates 13 for pouring door leaf 12 and being arranged in the vertical direction, and two support mould
The longitudinal supporting track 14 of 13 lower end of plate, number 12 fastening assembly of identical and one-to-one door leaf with 13 numbers of template；Door leaf
Fastening assembly includes: the flange 15 set on 13 side wall of template, and eight are distributed and lower end connect with flange 15 along 13 side wall of template
Wedge 16, number pressing plate 17 identical and one-to-one with 16 numbers of wedge, bolt 18, nut 19；It pushes down the inner end of pressing plate 17
12 upper end of door leaf, the screw rod upper end of bolt 18 pass through flange 15, wedge 16, pressing plate 17 and are spirally connected with nut 19.
The humidity detector includes: number humidity sensor 20 identical and one-to-one with 13 numbers of template；
Template 13, which is equipped with, adjusts screw hole 21；Humidity sensor 20 is contacted with door leaf 12 and is spirally connected with screw hole 21 is adjusted；Horizontal water tube 9 is equipped with two
A electromagnet cut off valve 22 for being divided into 8 two sides of vertical water pipe；Humidity sensor 20, electromagnet cut off valve 22 are electrical with controller 1 respectively
Connection.
The travel driving unit includes: two wheel shafts 23 for passing through bearing hinge joint with 3 lower end of chassis, is loaded on chassis 3
The storage battery 24 of lower end, the retarder 26 equipped with servo motor 25；Wheel group includes two vehicles of two wheels, 27: one wheel groups
Wheel 27 and one end of two wheel shafts 23 connect one to one, and two wheels 27 of another wheel group are another with two wheel shafts 23
End connects one to one；The delivery outlet of retarder 26 is covered outer in a wheel shaft 23 and is keyed with wheel shaft 23；Controller 1 and chassis
3 lower ends are spirally connected, and controller 1 is equipped with the control panel 28 loaded on 6 upper end of water tank；Storage battery 24, servo motor 25 respectively with controller 1
It is electrically connected.
3 two side ends of chassis are respectively equipped with a hound 29；29 upper end of hound tilt outward and with horizontal water tube 9
Welding.
A kind of maintenance spraying method of 12 maintenance spray system of reinforced concrete closed guard gate fan, the reinforced concrete natives
It is above-mentioned 12 maintenance spray system of reinforced concrete closed guard gate fan that anti-door leaf 12, which conserves spray system, and (1) presses setting time, control
Device 1 processed controls servo motor 25 and starts, and retarder 26 drives wheel 27 to rotate through wheel shaft 23, and spray vehicle is made to spray track along longitudinal direction
2 movements；(2) detection sensor 4 detects 12 1 side of door leaf, and controller 1 controls electromagnet cut off valve 22 and is connected to and starts diving
7 are pumped, the water in water tank 6 carries out maintenance spray to door leaf 12 from the ejection of spray head 10 through vertical water pipe 8, horizontal water tube 9, spray tube 11,
Detection sensor 4 detects another side of door leaf 12, and immersible pump 7 stops working；The above movement is repeated, successively door leaf 12 is carried out
Maintenance spray；(3) humidity sensor 20 detects that the humidity of door leaf 12 is lower than setting value, and controller 1 controls servo motor 25 and opens
Dynamic, retarder 26 drives wheel 27 to rotate through wheel shaft 23, and spray vehicle is made to spray the movement of track 2 along longitudinal direction, and detection sensor 4 detects
To corresponding 12 1 side of door leaf, the electromagnet cut off valve 22 that controller 1 controls side corresponding with door leaf 12 is connected to and starts diving
7 are pumped, the water in water tank 6, which is sprayed through vertical water pipe 8, horizontal water tube 9, spray tube 11 from spray head 10, carries out moisturizing maintenance spray to door leaf 12
Leaching, detection sensor 4 detect another side of door leaf 12, and immersible pump 7 stops working.
In addition to the implementation, within the scope of the claims of the present invention and the specification, skill of the invention
Art feature or technical data can be reselected and be combined, to constitute new embodiment, these are all art technologies
Personnel are without carrying out what creative work can be realized, therefore the embodiment that these present invention are not described in also should be regarded as this
The specific embodiment of invention and within protection scope of the present invention.
Claims (6)
1. a kind of reinforced concrete closed guard gate fan maintenance spray system, comprising: controller, characterized in that the reinforced concrete
The anti-door leaf of natives conserves spray system further include: two maintenance areas, at least two are set to longitudinal spray between two maintenance areas
Track, spray vehicle, humidity detector；Spray vehicle includes: identical as longitudinal spray track number equipped with number and corresponds
Wheel group on longitudinal spray track, the chassis equipped with travel driving unit, two are loaded on the inspection of chassis two side ends respectively
Survey sensor, loaded on chassis and be equipped with water inlet water tank, loaded on the immersible pump in water tank, lower end is connected to submersible pump outlet
Vertical water pipe, the horizontal water tube being connected to vertical water pipe upper end, two with two one-to-one spray assemblies in maintenance area；Spray assemblies
It include: the spray tube that several lower ends are equipped with the spray head being located above maintenance area and upper end is connected to horizontal water tube；Detection sensing
Device, immersible pump are electrically connected with controller respectively.
2. reinforced concrete closed guard gate fan maintenance spray system according to claim 1, characterized in that the maintenance area
It include: the template that several pour door leaf and are arranged in the vertical direction, at least two support the longitudinal supporting track of template lower end,
Number door leaf fastening assembly identical and one-to-one with template number；Door leaf fastening assembly includes: set on the convex of template side wall
Edge, the wedge that several are distributed along template side wall and lower end is connect with flange, number are identical and one-to-one as wedge number
Pressing plate, bolt, nut；Door leaf upper end is pushed down in the inner end of pressing plate, and the screw rod upper end of bolt passes through flange, wedge, pressing plate and and spiral shell
Mother is spirally connected.
3. reinforced concrete closed guard gate fan maintenance spray system according to claim 2, characterized in that the humidity inspection
Surveying device includes: number humidity sensor identical and one-to-one with template number；Template, which is equipped with, adjusts screw hole；Humidity sensor
Device is contacted with door leaf and is spirally connected with screw hole is adjusted；Horizontal water tube sets that there are two be divided into the electromagnet cut off valve of vertical water pipe two sides；Humidity
Sensor, electromagnet cut off valve are electrically connected with controller respectively.
4. reinforced concrete closed guard gate fan maintenance spray system according to claim 1 or 2 or 3, characterized in that described
Travel driving unit includes: two wheel shafts with the pivot joint of chassis lower end, the storage battery loaded on chassis lower end, subtracting equipped with servo motor
Fast device；Wheel group includes two wheels: one end of two wheels and two wheel shafts of a wheel group connects one to one, another
The other end of two wheels and two wheel shafts of a wheel group connects one to one: the delivery outlet of retarder covers outside a wheel shaft
And with wheel axis connection；Controller is connect with chassis lower end, and controller is equipped with the control panel loaded on water tank upper end；Storage battery, servo
Motor is electrically connected with controller respectively.
5. reinforced concrete closed guard gate fan maintenance spray system according to claim 1 or 2 or 3, characterized in that described
Chassis two side ends are respectively equipped with a hound；Hound upper end tilts outward and connect with horizontal water tube.
6. a kind of maintenance spraying method of reinforced concrete closed guard gate fan maintenance spray system, the reinforced concrete closed guard gate
Fan maintenance spray system is that claim 1 to any reinforced concrete closed guard gate of claim 5 fans maintenance spray system,
It is characterized in that (1) presses setting time, controller controls servo motor starting, and retarder drives vehicle wheel rotation through wheel shaft, makes to spray
Vehicle sprays track movement along longitudinal direction；(2) detection sensor detects one side of door leaf, and controller controls electromagnet cut off valve connection simultaneously
Start immersible pump, the water in water tank carries out maintenance spray to door leaf from spray head ejection through vertical water pipe, horizontal water tube, spray tube, examines
It surveys sensor and detects another side of door leaf, immersible pump stops working；The above movement is repeated, maintenance spray successively is carried out to door leaf
Leaching；(3) humidity sensor detects that the humidity of door leaf is lower than setting value, and controller controls servo motor starting, and retarder is through taking turns
Axis drives vehicle wheel rotation, and spray vehicle is made to spray track movement along longitudinal direction, and detection sensor detects corresponding one side of door leaf, controls
The electromagnet cut off valve that device processed controls side corresponding with door leaf is connected to and starts immersible pump, the water in water tank through vertical water pipe, horizontal water tube,
Spray tube is sprayed from spray head carries out moisturizing maintenance spray to door leaf, and detection sensor detects another side of door leaf, immersible pump
It stops working.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910769322.5A CN110480816A (en) | 2019-08-20 | 2019-08-20 | Reinforced concrete closed guard gate fan maintenance spray system and maintenance spraying method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910769322.5A CN110480816A (en) | 2019-08-20 | 2019-08-20 | Reinforced concrete closed guard gate fan maintenance spray system and maintenance spraying method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110480816A true CN110480816A (en) | 2019-11-22 |
Family
ID=68552244
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910769322.5A Pending CN110480816A (en) | 2019-08-20 | 2019-08-20 | Reinforced concrete closed guard gate fan maintenance spray system and maintenance spraying method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110480816A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110936484A (en) * | 2019-12-25 | 2020-03-31 | 佛山市均林人防工程有限公司 | Commodity concrete maintenance spraying system for protective door |
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|---|---|---|---|---|
| CN204295858U (en) * | 2014-12-08 | 2015-04-29 | 安徽人防设备有限公司 | Defense equipment door leaf spray equipment |
| CN204418689U (en) * | 2014-12-24 | 2015-06-24 | 山东省建筑科学研究院 | Concrete spray maintenance device |
| CN205853063U (en) * | 2016-08-08 | 2017-01-04 | 沈阳朗辉机械制造有限公司 | A kind of box beam maintenance spray equipment |
| CN206351487U (en) * | 2017-01-11 | 2017-07-25 | 中铁四局集团有限公司 | Box girder intelligent maintenance system |
| CN206703262U (en) * | 2017-04-17 | 2017-12-05 | 东莞市益安人防工程有限公司 | A kind of maintenance of equipment of people's air defense door leaf |
| CN206769424U (en) * | 2017-05-16 | 2017-12-19 | 中国建筑股份有限公司 | A kind of automatic concrete spraying curing means |
| CN207310202U (en) * | 2017-07-18 | 2018-05-04 | 宁夏青龙管业股份有限公司 | A kind of spray maintenance device and spray maintenance structure |
| CN207901392U (en) * | 2018-01-19 | 2018-09-25 | 北京铠钺防护科技有限公司 | Civil air defense cement door maintenance water tank |
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2019
- 2019-08-20 CN CN201910769322.5A patent/CN110480816A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204295858U (en) * | 2014-12-08 | 2015-04-29 | 安徽人防设备有限公司 | Defense equipment door leaf spray equipment |
| CN204418689U (en) * | 2014-12-24 | 2015-06-24 | 山东省建筑科学研究院 | Concrete spray maintenance device |
| CN205853063U (en) * | 2016-08-08 | 2017-01-04 | 沈阳朗辉机械制造有限公司 | A kind of box beam maintenance spray equipment |
| CN206351487U (en) * | 2017-01-11 | 2017-07-25 | 中铁四局集团有限公司 | Box girder intelligent maintenance system |
| CN206703262U (en) * | 2017-04-17 | 2017-12-05 | 东莞市益安人防工程有限公司 | A kind of maintenance of equipment of people's air defense door leaf |
| CN206769424U (en) * | 2017-05-16 | 2017-12-19 | 中国建筑股份有限公司 | A kind of automatic concrete spraying curing means |
| CN207310202U (en) * | 2017-07-18 | 2018-05-04 | 宁夏青龙管业股份有限公司 | A kind of spray maintenance device and spray maintenance structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110936484A (en) * | 2019-12-25 | 2020-03-31 | 佛山市均林人防工程有限公司 | Commodity concrete maintenance spraying system for protective door |
| CN110936484B (en) * | 2019-12-25 | 2021-06-08 | 佛山市均林人防工程有限公司 | Commodity concrete maintenance spraying system for protective door |
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Application publication date: 20191122 |
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