CN221626847U - Bridge pier shaft concrete column health preserving device - Google Patents
Bridge pier shaft concrete column health preserving device Download PDFInfo
- Publication number
- CN221626847U CN221626847U CN202323538483.4U CN202323538483U CN221626847U CN 221626847 U CN221626847 U CN 221626847U CN 202323538483 U CN202323538483 U CN 202323538483U CN 221626847 U CN221626847 U CN 221626847U
- Authority
- CN
- China
- Prior art keywords
- water
- concrete column
- column
- health preserving
- fixed
- 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.)
- Active
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 195
- 238000011084 recovery Methods 0.000 claims abstract description 12
- 238000003973 irrigation Methods 0.000 claims abstract description 11
- 230000002262 irrigation Effects 0.000 claims abstract description 11
- 238000009434 installation Methods 0.000 claims description 7
- 230000003028 elevating effect Effects 0.000 claims 2
- 238000001914 filtration Methods 0.000 description 11
- 238000005507 spraying Methods 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 4
- 239000012535 impurity Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 241000264877 Hippospongia communis Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000011417 postcuring Methods 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Bridges Or Land Bridges (AREA)
Abstract
The utility model discloses a bridge pier body concrete column health preserving device which comprises a pair of mounting blocks, supporting columns, a multi-way valve and a concrete column, wherein the pair of mounting blocks are symmetrically arranged, the tops of the mounting blocks are fixedly connected with the supporting columns, the tops of the supporting columns are provided with cross rods integrally formed with the supporting columns, the surfaces of the mounting blocks are also provided with lifting devices, the middle parts of the cross rods are provided with water storage tanks, one ends of the water storage tanks are provided with water inlets, the water storage tanks are slidably arranged below the cross rods through the lifting devices, the bottoms of the water storage tanks are internally provided with switching devices, the bottoms of the water storage tanks are fixedly connected with the water inlets of the multi-way valve, the water outlets of the multi-way valve are sleeved with thick water pipes, the water storage tanks are connected with the drip irrigation health preserving device through the multi-way valve and the thick water pipes, the drip irrigation health preserving device is arranged at the tops of the concrete column, and a recovery device is arranged below the concrete column.
Description
Technical Field
The utility model relates to the technical field of spraying health maintenance, in particular to a bridge pier body concrete upright post health maintenance device.
Background
The concrete construction health preserving refers to a series of protection and maintenance measures adopted when the concrete construction is carried out, aims at guaranteeing the quality and performance of the concrete, improving the strength and durability of the concrete, and generally prevents the premature drying and water loss of the concrete by covering wet cloth, spraying water and the like, promotes the concrete to fully hydrate and react, improves the strength, and the pier is generally higher, and is subjected to artificial water spraying health preserving and excessively complicated.
The utility model patent with publication number CN211547387U discloses a water tank transfer type spraying health preserving system, which comprises: the bridge pier top of the bridge of the continuous rigid frame is provided with a first water tank, the bridge pier bottom is provided with a second water tank, a second water pump is arranged in the second water tank, the second water pump is connected with one end of a second water supply pipe, the other end of the second water supply pipe is connected with a first water tank, a first water pump is arranged in the first water tank, the first water pump is connected with one end of the first water supply pipe, and the other end of the first water supply pipe is connected with a plurality of spray branch pipes. The utility model has the advantages that: the structure is simple, the water resource is saved, the labor is saved, and the work efficiency is improved; the continuous rigid frame can be kept in a wet state all the time, so that the appearance defects of honeycombs, pitted surfaces and the like on the surface of the concrete are reduced, and the bridge is very suitable for the health maintenance of the continuous rigid frame.
But this patent does not be equipped with the recovery water source device, and concrete column life-time cycle is longer generally, comparatively extravagant water resource, and this patent second water tank sets up in concrete column bottom, and the concrete column is higher generally, and generally need carry out the life-time to a plurality of concrete columns simultaneously in the in-service use, and this patent needs to install a plurality of higher power water pumps in order to keep spraying pressure and just can satisfy.
Disclosure of Invention
The utility model aims to provide the bridge pier body concrete upright post curing device which can recycle the sprayed water source and filter the water source, is convenient for secondary use, and saves resources without installing a plurality of high-power water pumps when curing a plurality of concrete columns at the same time.
The technical scheme includes that the bridge pier body concrete column health preserving device comprises a pair of mounting blocks, supporting columns, a multi-way valve and a concrete column, wherein the mounting blocks are symmetrically arranged, the tops of the mounting blocks are fixedly connected with the supporting columns, cross rods integrally formed with the supporting columns are arranged at the tops of the supporting columns, lifting devices are further arranged on the surfaces of the mounting blocks, a water storage tank is arranged in the middle of the cross rods, a water inlet is formed in one end of the water storage tank, the water storage tank is slidably arranged below the cross rods through the lifting devices, a switching device is arranged in the bottom end of the water storage tank, the bottom end of the water storage tank is fixedly connected with the water inlet of the multi-way valve, a thick water pipe is sleeved at the water outlet of the multi-way valve, the water storage tank is connected with a drip irrigation health preserving device through the multi-way valve and the thick water pipe, the drip irrigation health preserving device is arranged at the tops of the concrete column, and a recovery device is arranged below the concrete column.
Preferably, the lifting device comprises a motor and a pulley, wherein a motor stator part is fixedly arranged on the surface of the mounting block, a pulley fixed end is fixedly arranged on the cross rod, a traction rope is wound on a motor rotor part, and the traction rope passes through the surface of the pulley and is fixedly connected with the top end of the water storage tank.
Preferably, the switch device comprises a handle, a fixed column, a rotating column and a control panel, wherein one end of the handle is fixedly connected to one end of the fixed column, a plurality of fixed grooves are formed in the surface of the fixed column, the other end of the fixed column is fixedly connected to one end of the rotating column, the control panel is fixedly arranged at the other end of the rotating column, a fixed block is arranged above the fixed column, one end of the fixed block is fixedly connected with one radial side of the bottom end of the outer wall of the water storage tank, a clamping block is slidably arranged in the middle of the fixed block, and the clamping block is in contact connection with the fixed grooves.
Preferably, drip irrigation health preserving device includes the buffer tank, buffer tank fixed mounting in concrete column top, buffer tank outer wall top and thick water pipe one end fixed connection, buffer tank outer wall bottom fixedly connected with thin water pipe one end, thin water pipe twines in concrete column surface, and thin water pipe has seted up the pore with concrete column contact side.
Preferably, the recovery device comprises a water receiving disc, the water receiving disc is sleeved at the bottom of the outer surface of the concrete column, a water filtering groove integrally formed with the water receiving disc is formed in one radial side of the water receiving disc, a mud baffle is fixedly arranged at the joint of the water receiving disc and the water filtering groove, a plurality of protruding blocks are arranged on one side of the mud baffle, and one end of each protruding block is fixedly connected with the surface of the water filtering groove.
Preferably, a plurality of first triangular clamping blocks are fixedly arranged on the periphery of the bottom of the outer wall of the support column, and a second triangular clamping block is fixedly arranged at the joint of the support column and the cross rod.
Preferably, the bottom end of the mounting block is fixedly provided with a pointed cone clamping block.
Preferably, one radial side of the water storage tank is also provided with a water level sensor.
The utility model is simple and convenient to use, the device is fixedly arranged above the concrete to be cured through the pointed cone clamping block, then water is injected into the water storage tank through the water inlet hole, then the motor is started, the water tank is hung to a high position through the traction rope and the pulley, the clamping block is pulled out only when the concrete is cured, then the handle is held to rotate, the angle of the control panel can be changed, the water source flows to the multi-way valve, and flows to the buffer tank along the crude water pipe, the buffer tank absorbs the downward kinetic energy of the crude water pipe from the high position, the water source can slowly flow to the concrete column from the thin water pipe and fall into the water receiving disc conveniently, the water source in the water receiving disc flows to the water filtering tank when the water source is higher than the mud baffle plate, and can be sent into the hammer water pipe or other proper places again after being filtered by the water filtering tank.
Compared with the prior art, the water storage tank is conveyed to a high place through the support column and the motor, the natural gravity is utilized to carry out curing on the concrete columns, the need of installing a plurality of high-power water pumps can be effectively avoided when curing a plurality of concrete columns, the recovery device can effectively recover the water source of the cured concrete columns, secondary use is convenient, resources are saved, the pointed cone clamping block, the first triangular clamping block and the second triangular clamping block are convenient to fixedly install the water storage tank in a proper place, the strength of the water storage tank is further improved, and the water level sensor is further arranged on the water storage tank, so that the water source in the water storage tank is conveniently and timely supplemented.
Drawings
FIG. 1 is a schematic structural view of a bridge pier body concrete column curing device according to the present utility model;
FIG. 2 is a schematic diagram of a water source of a bridge pier body concrete column curing device according to the present utility model;
FIG. 3 is an enlarged view of the utility model at A;
fig. 4 is a schematic diagram of a curing place structure of a bridge pier body concrete column curing device according to the present utility model;
Fig. 5 is an enlarged view of the utility model at B.
Reference numerals in the drawings indicate
1. A mounting block; 2. a support column; 21. a cross bar; 3. a motor; 31. a traction rope; 32. a pulley; 4. a water storage tank; 41. a water inlet; 5. a switching device; 51. a grip; 52. fixing the column; 53. a fixing groove; 54. a rotating column; 55. a control panel; 56. a fixed block; 57. a clamping block; 6. a multi-way valve; 61. a coarse water pipe; 7. a buffer tank; 71. a water-thin pipe; 8. a recovery device; 81. a water receiving tray; 82. a water filtering tank; 83. a mud guard; 84. a bump; 9. the first triangular clamping block; 91. a second triangular clamping block; 10. a pointed cone clamping block; 11. a water level sensor; 12. and (5) a concrete column.
Detailed Description
The utility model is described in further detail below with reference to the accompanying drawings.
Fig. 1 schematically shows a bridge pier body concrete column curing device according to the utility model, which comprises a mounting block 1, a support column 2, a multi-way valve 6 and concrete columns 12, wherein the multi-way valve 6 can adopt a model such as CH-125 and the like which can enter and exit simultaneously, curing is conveniently carried out on a plurality of concrete columns 12, the mounting block 1 is provided with a pair of mounting blocks 1 which are symmetrically arranged, the top of the mounting block 1 is fixedly connected with the support column 2, the top of the support column 2 is provided with a cross rod 21 integrally formed with the support column 2, the surface of the mounting block 1 is also provided with a lifting device, the middle part of the cross rod 21 is provided with a water storage tank 4, one end of the water storage tank 4 is provided with a water inlet 41, the water storage tank 4 is slidably arranged below the cross rod 21 through the lifting device, the bottom end of the water storage tank 4 is internally provided with a switching device 5, the bottom end of the water storage tank 4 is fixedly connected with the water inlet of the multi-way valve 6, the water outlet of the multi-way valve 6 is sleeved with a thick water pipe 61, the water storage tank 4 is connected with a drip irrigation health preserving device through a multi-way valve 6 and a thick water pipe 61, the drip irrigation health preserving device is arranged at the top of a concrete column 12, a recovery device 8 is arranged below the concrete column, the lifting device comprises a motor 3 and a pulley 32, a stator part of the motor 3 is fixedly arranged on the surface of a mounting block 1, a fixed end of the pulley 32 is fixedly arranged on a cross rod 21, a rotor part of the motor is wound with a traction rope 31, the traction rope 31 can effectively prolong the service life due to the fact that the steel wire and other metal materials are made, the traction rope 31 penetrates through the surface of the pulley 32 and is fixedly connected with the top end of the water storage tank 4 through welding, a plurality of first triangular clamping blocks 9 are fixedly arranged on the periphery of the bottom of the outer wall of a supporting column 2, the first triangular clamping blocks 9 can effectively limit the moving range of the supporting column 2, the stability of the device is improved, a second triangular clamping block 91 is fixedly arranged at the joint of the supporting column 2 and the cross rod 21, the second triangle fixture block 91 can effectually share the atress of horizontal pole 21, and the intensity of this equipment is further promoted, and installation piece 1 bottom fixed mounting has pointed cone fixture block 10, and the special structure of pointed cone fixture block 10 can easily go deep underground, makes things convenient for the installation and the fixed of this equipment, and water tank 4 radial one side still is equipped with water level sensor 11, and water level sensor 11 can adopt DF-96 etc. model, conveniently knows the residual water volume in the water tank 4 in advance, makes things convenient for timely make-up water.
As shown in fig. 2, 3, 4 and 5, the switch device 5 comprises a handle 51, a fixed column 52, a rotating column 54 and a control panel 55, one end of the handle 51 is fixedly connected to one end of the fixed column 52, a plurality of fixed grooves 53 are formed in the surface of the fixed column 52, the other end of the fixed column 52 is fixedly connected to one end of the rotating column 54, the control panel 55 is fixedly arranged at the other end of the rotating column 54, a fixed block 56 is arranged above the fixed column 52, one end of the fixed block 56 is fixedly connected with one radial side of the bottom end of the outer wall of the water storage tank 4, a clamping block 57 is slidably arranged in the middle of the fixed block 56, the clamping block 57 is in contact connection with the fixed grooves 53, the drip irrigation health preserving device comprises a buffer box 7, The buffer box 7 is fixedly arranged at the top of the concrete column 12, the buffer box 7 can effectively absorb impact caused by water source flowing from high position, the top of the outer wall of the buffer box 7 is fixedly connected with one end of the thick water pipe 61, the bottom of the outer wall of the buffer box 7 is fixedly connected with one end of the thin water pipe 71, the thin water pipe 71 is wound on the surface of the concrete column 12, the contact side of the thin water pipe 71 and the concrete column 12 is provided with a fine hole, the recovery device 8 comprises a water receiving disc 81, the water receiving disc 81 is sleeved at the bottom of the outer surface of the concrete column 12, one radial side of the water receiving disc 81 is provided with a water filtering groove 82 integrally formed with the water receiving disc 81, a mud guard 83 is fixedly arranged at the joint of the water receiving disc 81 and the water filtering groove 82, one side of the mud guard 83 is provided with a plurality of protruding blocks 84, one end of each protruding block 84 is fixedly connected with the surface of the water filtering groove 82, in actual use, the device is fixedly arranged at a proper position through the pointed cone clamping block 10, then proper water is poured into the water storage tank 4 through the water inlet 41, then the motor 3 is started, the motor 3 is rotated to wind the traction rope 31, the length of the traction rope 31 is changed, the water storage tank 4 is pulled to a high position through the traction rope 31 and the pulley 32, the clamping block 57 is removed, the handle 51 can be held to rotate at the moment, the handle 51 rotates to drive the rotary column 54 to rotate, the rotary column 54 further drives the control disc 55 to rotate, The rotation of the rotating disc 55 can change the size of the pipeline space between the water storage tank 4 and the multi-way valve 6, so that the water source in the water storage tank 4 can flow to the multi-way valve 6, the water flow in the water storage tank 4 to the multi-way valve 6 can be controlled by adjusting the angle of the control disc 55, the water source in the water storage tank 4 can flow to the buffer tank 7 along the multi-way valve 6 and the thick water pipe 61 just by reinserting the clamping block 57 into the fixed groove 53 like the angle of the fixed control disc 55, and can flow to the surface of the concrete column 12 along the fine holes on the fine water pipe 71 after the impact force is absorbed by the buffer tank 7, and then flows to the water receiving disc 81 along the surface of the concrete column 12, The water source in the water receiving tray 81 can slowly increase along with time, impurities such as fine stones washed off the surface of the concrete column 12 are conveniently submerged in the water bottom, when the water source in the water receiving tray 81 is higher than the mud guard 83, the impurities such as fine stones can be intercepted by the mud guard 83 due to self weight, a plurality of projections 84 are further arranged on the surface of the water filtering tray 82, the projections 84 can further block the impurities such as fine stones in the water source, the purification effect is improved, a water storage tank or a water storage bucket can be dug beside the water filtering tray 82, the filtered water source is collected, and the water storage tank 4 can be refilled or used for washing vehicles, Dust fall, and other equipment requiring a water source.
Claims (10)
1. Bridge pier shaft concrete column health preserving device, including installation piece (1), support column (2), multiport valve (6) and concrete column (12), its characterized in that: the utility model discloses a concrete column, including installation piece (1), a pair of installation piece (1), installation piece (1) top fixedly connected with support column (2), support column (2) top be equipped with support column (2) integrated into one piece's horizontal pole (21), installation piece (1) surface still is equipped with elevating gear, horizontal pole (21) middle part is equipped with water storage tank (4), water inlet (41) have been seted up to water storage tank (4) one end, water storage tank (4) pass through elevating gear slidable mounting in horizontal pole (21) below, chu Shuiguan (4) bottom inside is equipped with switching device (5), water storage tank (4) bottom and multiway valve (6) water inlet fixed connection, multiway valve (6) delivery port cover is established and is installed thick water pipe (61), water storage tank (4) are connected with drip irrigation health preserving device through multiway valve (6) and thick water pipe (61), drip irrigation health preserving device is placed in concrete column (12) top, and concrete column below is equipped with recovery unit (8).
2. The bridge pier body concrete column health preserving device according to claim 1, wherein: the lifting device comprises a motor (3) and a pulley (32), wherein a stator part of the motor (3) is fixedly arranged on the surface of the mounting block (1), a fixed end of the pulley (32) is fixedly arranged on the cross rod (21), a traction rope (31) is wound on a rotor part of the motor, and the traction rope (31) penetrates through the surface of the pulley (32) to be fixedly connected with the top end of the water storage tank (4).
3. The bridge pier body concrete column health preserving device according to claim 1 or 2, wherein: the switch device (5) comprises a handle (51), a fixed column (52), a rotating column (54) and a control panel (55), wherein one end of the handle (51) is fixedly connected to one end of the fixed column (52), a plurality of fixed grooves (53) are formed in the surface of the fixed column (52), the other end of the fixed column (52) is fixedly connected to one end of the rotating column (54), the control panel (55) is fixedly arranged at the other end of the rotating column (54), a fixed block (56) is arranged above the fixed column (52), one end of the fixed block (56) is fixedly connected with one radial side of the bottom end of the outer wall of the water storage tank (4), a clamping block (57) is fixedly arranged in the middle of the fixed block (56) in a sliding mode, and the clamping block (57) is in contact connection with the fixed grooves (53).
4. The bridge pier body concrete column health preserving device according to claim 1 or 2, wherein: the drip irrigation health preserving device comprises a buffer box (7), wherein the buffer box (7) is fixedly arranged at the top of a concrete column (12), the top of the outer wall of the buffer box (7) is fixedly connected with one end of a thick water pipe (61), the bottom of the outer wall of the buffer box (7) is fixedly connected with one end of a thin water pipe (71), the thin water pipe (71) is wound on the surface of the concrete column (12), and the contact side of the thin water pipe (71) and the concrete column (12) is provided with fine holes.
5. The bridge pier body concrete column health preserving device according to claim 1 or 2, wherein: recovery unit (8) are including water collector (81), and water collector (81) cover is located concrete column (12) surface bottom, and water collector (81) radial one side is equipped with water filter (82) with water collector (81) integrated into one piece, and water collector (81) and water filter (82) junction fixed mounting has fender (83), and fender (83) one side is equipped with a plurality of lugs (84), lug (84) one end and water filter (82) fixed surface connection.
6. The bridge pier body concrete column health preserving device according to claim 3, wherein: recovery unit (8) are including water collector (81), and water collector (81) cover is located concrete column (12) surface bottom, and water collector (81) radial one side is equipped with water filter (82) with water collector (81) integrated into one piece, and water collector (81) and water filter (82) junction fixed mounting has fender (83), and fender (83) one side is equipped with a plurality of lugs (84), lug (84) one end and water filter (82) fixed surface connection.
7. The bridge pier body concrete column health preserving device according to claim 4, wherein: recovery unit (8) are including water collector (81), and water collector (81) cover is located concrete column (12) surface bottom, and water collector (81) radial one side is equipped with water filter (82) with water collector (81) integrated into one piece, and water collector (81) and water filter (82) junction fixed mounting has fender (83), and fender (83) one side is equipped with a plurality of lugs (84), lug (84) one end and water filter (82) fixed surface connection.
8. The bridge pier body concrete column health preserving device according to claim 1, 2, 6 or 7, wherein: a plurality of first triangular clamping blocks (9) are fixedly arranged around the bottom of the outer wall of the support column (2), and a second triangular clamping block (91) is fixedly arranged at the joint of the support column (2) and the cross rod (21).
9. The bridge pier body concrete column health preserving device according to claim 1, 2, 6 or 7, wherein: the bottom end of the mounting block (1) is fixedly provided with a pointed cone clamping block (10).
10. The bridge pier body concrete column health preserving device according to claim 1, 2, 6 or 7, wherein: a water level sensor (11) is arranged on one radial side of the water storage tank (4).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202323538483.4U CN221626847U (en) | 2023-12-25 | 2023-12-25 | Bridge pier shaft concrete column health preserving device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202323538483.4U CN221626847U (en) | 2023-12-25 | 2023-12-25 | Bridge pier shaft concrete column health preserving device |
Publications (1)
Publication Number | Publication Date |
---|---|
CN221626847U true CN221626847U (en) | 2024-08-30 |
Family
ID=92496778
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202323538483.4U Active CN221626847U (en) | 2023-12-25 | 2023-12-25 | Bridge pier shaft concrete column health preserving device |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN221626847U (en) |
-
2023
- 2023-12-25 CN CN202323538483.4U patent/CN221626847U/en active Active
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN206935908U (en) | A kind of machine components cleaning device | |
CN107419771A (en) | A kind of rainwater-collecting filter plant | |
CN207419254U (en) | A kind of bridge drainage structure | |
CN107572624A (en) | A kind of sewage-treatment plant | |
CN201930615U (en) | Swirling flow sand-removing filter | |
CN221626847U (en) | Bridge pier shaft concrete column health preserving device | |
CN107649422A (en) | A kind of auto parts cleaning device | |
CN214914172U (en) | Offshore oil filter screen cleaning device | |
CN212384235U (en) | Efficient cleaning device for sand containing barrel for building construction | |
CN219882801U (en) | Concrete prefabricated plate production curing means | |
CN213670785U (en) | Segment steel pipe rotary disc type cleaning machine | |
CN201930613U (en) | Efficient desanding filter | |
CN212538332U (en) | Solar water heater cleaning device based on green building | |
CN212103680U (en) | Pier shaft sprays maintenance system | |
CN112282034B (en) | Prefabricated pump station of integration that contains automatic slag removal function | |
CN108654179A (en) | A kind of water anchor point formula inhales the algae water filtration device of algae | |
CN207204680U (en) | A kind of novel washing stone of environmentally friendly building engineering field desilts equipment | |
CN213508769U (en) | Water conservancy construction drainage device | |
CN219187864U (en) | Cleaning pool | |
CN214289625U (en) | Pole-climbing cleaning machine for wind power generation equipment | |
CN205270245U (en) | Mechanical part cleaning device | |
CN220470127U (en) | Wind power tower barrel cleaning device | |
CN211037843U (en) | Building house construction is with pouring device | |
CN220726373U (en) | Drainage and synchronous pretreatment comprehensive operation vehicle for tunnel construction | |
CN211969388U (en) | Efficient water-saving mining spraying device |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
GR01 | Patent grant | ||
GR01 | Patent grant |