CN111362163A - Material pulling, lifting and conveying device for bridge engineering construction - Google Patents
Material pulling, lifting and conveying device for bridge engineering construction Download PDFInfo
- Publication number
- CN111362163A CN111362163A CN202010236843.7A CN202010236843A CN111362163A CN 111362163 A CN111362163 A CN 111362163A CN 202010236843 A CN202010236843 A CN 202010236843A CN 111362163 A CN111362163 A CN 111362163A
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- Prior art keywords
- threaded rod
- side wall
- motor
- lifting
- conveying device
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C25/00—Cranes not provided for in groups B66C17/00 - B66C23/00
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G65/00—Loading or unloading
- B65G65/23—Devices for tilting and emptying of containers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/02—Driving gear
- B66D1/12—Driving gear incorporating electric motors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2201/00—Indexing codes relating to handling devices, e.g. conveyors, characterised by the type of product or load being conveyed or handled
- B65G2201/04—Bulk
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C2700/00—Cranes
- B66C2700/01—General aspects of mobile cranes, overhead travelling cranes, gantry cranes, loading bridges, cranes for building ships on slipways, cranes for foundries or cranes for public works
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forklifts And Lifting Vehicles (AREA)
Abstract
The invention particularly relates to a material pulling, lifting and conveying device for bridge engineering construction, which solves the problem that the existing material conveying device wastes time and labor during material loading and unloading in use. A material pulling, lifting and conveying device for bridge engineering construction is characterized in that a first motor is arranged on the left side of a U-shaped supporting plate; the first threaded rod is connected with an output shaft of the first motor; the first threaded rod is sleeved with a connecting box; a second motor is arranged in the connecting box, and an output shaft of the second motor is fixedly sleeved with a reel; the connecting box is connected with the material loading barrel through a rope; a second threaded rod is arranged between the first fixed block and the second fixed block and connected with an output shaft of a third motor; the second threaded rod is sleeved with a movable block, the left part of the lower surface of the material collecting box is provided with a roller, and the right part of the lower surface of the material collecting box is provided with a supporting rod. The automatic feeding and discharging device realizes the purposes of automatic feeding and automatic discharging, has firm structure and stable operation, and effectively improves the operating efficiency of feeding and discharging materials.
Description
Technical Field
The invention relates to a construction device for bridge engineering, in particular to a material pulling, lifting and conveying device for bridge engineering construction.
Background
In bridge engineering, a large amount of construction materials are used in the construction process, so that a transportation device is needed to complete the transportation of the materials.
However, practice shows that the prior material transportation device has the following problems in use: the material loading and unloading of material are mainly accomplished through manual operation's mode, and working strength is big, and the efficiency of construction is low, influences the construction progress, simultaneously owing to need many people to participate in the operation, has increased the cost of labor in the construction.
Disclosure of Invention
The invention provides a material pulling, lifting and conveying device for bridge engineering construction, which aims to solve the problem that the existing material conveying device wastes time and labor during material loading and unloading in use.
The invention is realized by adopting the following technical scheme:
a material pulling, lifting and conveying device for bridge engineering construction comprises a horizontally placed base, a pulling and lifting mechanism arranged above the base and an aggregate mechanism arranged on the upper surface of the base;
the lower surface of the base is provided with a plurality of travelling wheels, and the right part of the rear end surface is vertically provided with a supporting column;
the pulling and hanging mechanism comprises a U-shaped supporting plate which is horizontally arranged at the upper part of the front side wall of the supporting column and is downward in direction, a connecting plate is horizontally arranged at the upper part of the left outer side wall of the U-shaped supporting plate, and a first motor with an output shaft facing right is arranged on the lower surface of the connecting plate; a rotatable first threaded rod is arranged between the left inner side wall and the right inner side wall of the U-shaped supporting plate, the left part of the first threaded rod penetrates through the left side wall of the U-shaped supporting plate, and the left end part of the first threaded rod is connected with an output shaft of a first motor through a coupler; a connecting box with an assembly screw hole is sleeved on the first threaded rod; a second motor is arranged in the connecting box and positioned below the first threaded rod, the output shaft of the second motor faces right, and a winding wheel arranged in the left-right direction is fixedly sleeved on the second motor; a material carrying barrel with a discharge valve at the bottom is arranged below the connecting box, and the connecting box is connected with the material carrying barrel through a rope wound on the outer side wall of the reel;
the material collecting mechanism comprises a material collecting box arranged above the base, and a third motor, a first fixing block, a second fixing block and a connecting seat which are sequentially and fixedly connected to the upper surface of the base from left to right; a rotatable second threaded rod is arranged between the first fixed block and the second fixed block, the left part of the second threaded rod penetrates through the first fixed block, and the left end part of the second threaded rod is connected with an output shaft of a third motor through a coupler; a movable block with an assembly screw hole is sleeved on the second threaded rod, and the left part of the upper surface of the movable block is a slope surface which is high at the left and low at the right; the upper surface of the base is provided with a ball groove arranged along the left-right direction, and the lower surface of the movable block is provided with two balls which are assembled in the ball groove in a rolling manner; the left part of the lower surface of the material collecting box is provided with a roller which is in rolling contact with the upper surface of the movable block, and the right part of the lower surface of the material collecting box is provided with a supporting rod hinged with the connecting seat.
When materials are loaded, the second motor is started firstly, drives the reel to rotate forward, pays off ropes, puts the loading barrel down to be in contact with the ground, loads the materials into the loading barrel, and restarts the second motor, drives the reel to rotate reversely, takes up the ropes, and lifts the loading barrel to a certain height; then start first motor, first motor drive first threaded rod rotates, under the effect of the connecting thread of first threaded rod and connecting box, drives the connecting box and removes left, drives simultaneously and carries the storage bucket and remove to the top of the case that gathers materials left, then opens discharge valve, unloads the material into the case that gathers materials, accomplishes a material loading operation, repeats above-mentioned process, accomplishes the material loading operation of material from this. When materials are fed, the third motor is started firstly, the third motor drives the second threaded rod to rotate, the movable block is driven to move rightwards under the action of connecting threads of the second threaded rod and the movable block, and meanwhile, the ball rolls rightwards along the ball groove, so that the movable block moves more stably; when the movable block moved to the right, the gyro wheel moved up along the slope of movable block, and branch rotated around the connecting seat simultaneously, drove the case of gathering materials clockwise and rotated certain angle from this, poured the material from the right side, accomplished the unloading operation of material. The invention solves the problem that the prior material conveying device wastes time and labor during material feeding and discharging in use.
The top and the right end of the material collecting box are both of an open structure, and the right part of the material collecting box is tilted upwards.
The work site is poured into fast accurately to the convenient material that will gather in the workbin of the slope form in right part, has improved unloading operating efficiency.
A first sleeve is fixed on the right inner side wall of the U-shaped supporting plate, a first bearing placed in the left-right direction is fixedly penetrated through the left side wall of the U-shaped supporting plate, the right end part of a first threaded rod is rotatably penetrated in the first sleeve, and the left part of the first threaded rod is fixedly penetrated in an inner ring of the first bearing; a second sleeve is fixed on the left side wall of the second fixed block; a second bearing arranged in the left-right direction is fixedly arranged on the first fixing block in a penetrating manner; the right end part of the second threaded rod is rotatably arranged in the second sleeve in a penetrating mode, and the left end part of the second threaded rod is fixedly arranged in the inner ring of the second bearing in a penetrating mode.
First threaded rod, second threaded rod have been ensured respectively to first sleeve and first bearing, second sleeve and second bearing and can have rotated steadily, and then guarantee the stable transmission of first motor and third motor drive power, are favorable to this material to draw the steady operation of handling conveyor.
The part of the outer side wall of the first threaded rod, which is positioned between the first sleeve and the first bearing, is a threaded surface, and the rest part is a smooth surface; the part of the outer side wall of the second threaded rod, which is positioned between the second sleeve and the second bearing, is a threaded surface, and the rest part is a smooth surface.
The quantity of walking wheel is four, and four walking wheels set up respectively in four bights of base lower surface.
A fixed plate is horizontally arranged above the material carrying barrel, and two connecting rods which are distributed left and right and are arranged along the inclined upward direction are arranged between the material carrying barrel and the fixed plate; the through-wire groove has been seted up to the diapire of connecting box, and the rope passes through-wire groove and fixed plate fixed connection.
The fixed plate is convenient to be connected the rope with carrying the storage bucket, and the connecting rod has increased the firm in connection nature between carrying storage bucket and the fixed plate, has ensured under the drive of second motor, and the spooler can be stably to carrying the storage bucket to draw and rise and transfer.
The inclined angle of the slope surface at the left part of the upper surface of the movable block is 30 degrees; two connecting blocks are fixedly connected to the lower surface of the movable block, two ball grooves matched with the balls in shape are formed in the bottoms of the two connecting blocks respectively, and the two balls are assembled in the two ball grooves in a rolling mode respectively.
The automatic feeding device is reasonable and reliable in structural design, and achieves the purposes of automatic feeding and automatic discharging. Moreover, the structure is firm, the operation is stable, the operation efficiency of material feeding and discharging is effectively improved, the labor cost in construction is greatly reduced, and the automatic feeding device has the advantages of convenience in operation and high automation degree.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a partially enlarged schematic view at a in fig. 1.
In the figure, 1-base, 2-road wheel, 3-support column, 4-U-shaped support plate, 5-connecting plate, 6-first motor, 7-first threaded rod, 8-connecting box, 9-second motor, 10-reel, 11-discharging valve, 12-loading barrel, 13-rope, 14-collecting box, 15-third motor, 16-first fixed block, 17-second fixed block, 18-connecting seat, 19-second threaded rod, 20-movable block, 21-ball groove, 22-ball, 23-roller, 24-support rod, 25-first sleeve, 26-first bearing, 27-second sleeve, 28-second bearing, 29-fixed plate, 30-connecting rod, 31-through-line groove, 32-connecting block, 33-ball groove.
Detailed Description
A material pulling, lifting and conveying device for bridge engineering construction comprises a horizontally placed base 1, a pulling and lifting mechanism arranged above the base 1 and an aggregate mechanism arranged on the upper surface of the base 1;
the lower surface of the base 1 is provided with a plurality of travelling wheels 2, and the right part of the rear end surface is vertically provided with a support column 3;
the pulling and hanging mechanism comprises a U-shaped supporting plate 4 which is horizontally arranged on the upper portion of the front side wall of the supporting column 3 and faces downwards, a connecting plate 5 is horizontally arranged on the upper portion of the left outer side wall of the U-shaped supporting plate 4, and a first motor 6 with an output shaft facing right is arranged on the lower surface of the connecting plate 5; a rotatable first threaded rod 7 is arranged between the left inner side wall and the right inner side wall of the U-shaped support plate 4, the left part of the first threaded rod 7 penetrates through the left side wall of the U-shaped support plate 4, and the left end part of the first threaded rod is connected with an output shaft of a first motor 6 through a coupler; a connecting box 8 with an assembly screw hole is sleeved on the first threaded rod 7; a second motor 9 positioned below the first threaded rod 7 is arranged in the connecting box 8, the output shaft of the second motor 9 faces right, and a winding wheel 10 placed in the left-right direction is fixedly sleeved on the output shaft; a material loading barrel 12 with a discharge valve 11 at the bottom is arranged below the connecting box 8, and the connecting box 8 is connected with the material loading barrel 12 through a rope 13 wound on the outer side wall of the reel 10;
the material collecting mechanism comprises a material collecting box 14 arranged above the base 1, and a third motor 15, a first fixing block 16, a second fixing block 17 and a connecting seat 18 which are fixedly connected to the upper surface of the base 1 from left to right in sequence; a rotatable second threaded rod 19 is arranged between the first fixed block 16 and the second fixed block 17, the left part of the second threaded rod 19 penetrates through the first fixed block 16, and the left end part of the second threaded rod is connected with an output shaft of the third motor 15 through a coupler; a movable block 20 with an assembly screw hole is sleeved on the second threaded rod 19, and the left part of the upper surface of the movable block 20 is a slope surface which is high at the left and low at the right; the upper surface of the base 1 is provided with a ball groove 21 arranged along the left-right direction, and the lower surface of the movable block 20 is provided with two balls 22 which are assembled in the ball groove 21 in a rolling manner; the left part of the lower surface of the material collecting box 14 is provided with a roller 23 which is in rolling contact with the upper surface of the movable block 20, and the right part is provided with a support rod 24 which is hinged with the connecting seat 18.
The top and the right end of the material collecting box 14 are both open structures, and the right part of the material collecting box is tilted upwards.
A first sleeve 25 is fixed on the right inner side wall of the U-shaped support plate 4, a first bearing 26 placed in the left-right direction is fixedly arranged on the left side wall of the U-shaped support plate in a penetrating mode, the right end portion of the first threaded rod 7 is rotatably arranged in the first sleeve 25 in a penetrating mode, and the left portion of the first threaded rod is fixedly arranged in an inner ring of the first bearing 26 in a penetrating mode; a second sleeve 27 is fixed on the left side wall of the second fixed block 17; a second bearing 28 arranged in the left-right direction is fixedly arranged on the first fixing block 16 in a penetrating manner; the right end of the second threaded rod 19 is rotatably inserted into the second sleeve 27, and the left end is fixedly inserted into the inner ring of the second bearing 28.
The part of the outer side wall of the first threaded rod 7, which is positioned between the first sleeve 25 and the first bearing 26, is a threaded surface, and the rest part is a smooth surface; the outer side wall of the second threaded rod 19 between the second sleeve 27 and the second bearing 28 is threaded, and the rest is smooth.
The number of the walking wheels 2 is four, and the four walking wheels 2 are respectively arranged at four corners of the lower surface of the base 1.
A fixed plate 29 is horizontally arranged above the material carrying barrel 12, and two connecting rods 30 which are distributed left and right and are arranged along the inclined upward direction are arranged between the material carrying barrel 12 and the fixed plate 29; the bottom wall of the connecting box 8 is provided with a through groove 31, and the rope 13 passes through the through groove 31 and is fixedly connected with the fixing plate 29.
The inclined angle of the slope surface at the left part of the upper surface of the movable block 20 is 30 degrees; two connecting blocks 32 are fixedly connected to the lower surface of the movable block 20, two ball grooves 33 matched with the balls 22 in shape are respectively formed in the bottoms of the two connecting blocks 32, and the two balls 22 are respectively assembled in the two ball grooves 33 in a rolling mode.
Claims (7)
1. The utility model provides a material of bridge engineering construction usefulness is pulled handling conveyor which characterized in that: comprises a horizontally placed base (1), a pulling and lifting mechanism arranged above the base (1) and a material collecting mechanism arranged on the upper surface of the base (1);
the lower surface of the base (1) is provided with a plurality of travelling wheels (2), and the right part of the rear end surface is vertically provided with a supporting column (3);
the pulling and hanging mechanism comprises a U-shaped supporting plate (4) which is horizontally arranged on the upper portion of the front side wall of the supporting column (3) and faces downwards, a connecting plate (5) is horizontally arranged on the upper portion of the left outer side wall of the U-shaped supporting plate (4), and a first motor (6) with an output shaft facing right is arranged on the lower surface of the connecting plate (5); a rotatable first threaded rod (7) is arranged between the left inner side wall and the right inner side wall of the U-shaped support plate (4), the left part of the first threaded rod (7) penetrates through the left side wall of the U-shaped support plate (4), and the left end part of the first threaded rod is connected with an output shaft of a first motor (6) through a coupler; a connecting box (8) with an assembly screw hole is sleeved on the first threaded rod (7); a second motor (9) is arranged in the connecting box (8) and is positioned below the first threaded rod (7), the output shaft of the second motor (9) faces right, and a reel (10) which is arranged in the left-right direction is fixedly sleeved; a material loading barrel (12) with a discharge valve (11) at the bottom is arranged below the connecting box (8), and the connecting box (8) is connected with the material loading barrel (12) through a rope (13) wound on the outer side wall of the reel (10);
the material collecting mechanism comprises a material collecting box (14) arranged above the base (1), and a third motor (15), a first fixing block (16), a second fixing block (17) and a connecting seat (18) which are sequentially and fixedly connected to the upper surface of the base (1) from left to right; a rotatable second threaded rod (19) is arranged between the first fixed block (16) and the second fixed block (17), the left part of the second threaded rod (19) penetrates out of the first fixed block (16), and the left end part of the second threaded rod is connected with an output shaft of a third motor (15) through a coupler; a movable block (20) with an assembly screw hole is sleeved on the second threaded rod (19), and the left part of the upper surface of the movable block (20) is a slope surface which is high at the left and low at the right; the upper surface of the base (1) is provided with a ball groove (21) arranged along the left-right direction, and the lower surface of the movable block (20) is provided with two balls (22) which are assembled in the ball groove (21) in a rolling way; the left part of the lower surface of the material collecting box (14) is provided with a roller (23) which is in rolling contact with the upper surface of the movable block (20), and the right part is provided with a support rod (24) which is hinged with the connecting seat (18).
2. The material pulling, lifting and conveying device for bridge engineering construction according to claim 1, characterized in that: the top and the right end of the material collecting box (14) are both of an open structure, and the right part of the material collecting box is tilted upwards.
3. The material pulling, lifting and conveying device for bridge engineering construction according to claim 1, characterized in that: a first sleeve (25) is fixed on the right inner side wall of the U-shaped support plate (4), a first bearing (26) placed in the left-right direction is fixedly arranged on the left side wall of the U-shaped support plate in a penetrating mode, the right end portion of the first threaded rod (7) is rotatably arranged in the first sleeve (25) in a penetrating mode, and the left portion of the first threaded rod is fixedly arranged in an inner ring of the first bearing (26) in a penetrating mode; a second sleeve (27) is fixed on the left side wall of the second fixed block (17); a second bearing (28) arranged in the left-right direction is fixedly arranged on the first fixing block (16) in a penetrating way; the right end part of the second threaded rod (19) is rotatably arranged in the second sleeve (27) in a penetrating way, and the left part of the second threaded rod is fixedly arranged in the inner ring of the second bearing (28) in a penetrating way.
4. The material pulling, lifting and conveying device for bridge engineering construction according to claim 3, characterized in that: the part of the outer side wall of the first threaded rod (7) positioned between the first sleeve (25) and the first bearing (26) is a threaded surface, and the rest part is a smooth surface; the part of the outer side wall of the second threaded rod (19) between the second sleeve (27) and the second bearing (28) is a threaded surface, and the rest part is a smooth surface.
5. The material pulling, lifting and conveying device for bridge engineering construction according to claim 1, characterized in that: the number of the walking wheels (2) is four, and the four walking wheels (2) are respectively arranged at four corners of the lower surface of the base (1).
6. The material pulling, lifting and conveying device for bridge engineering construction according to claim 1, characterized in that: a fixed plate (29) is horizontally arranged above the material carrying barrel (12), and two connecting rods (30) which are distributed left and right and are arranged along the inclined upward direction are arranged between the material carrying barrel (12) and the fixed plate (29); a through-line groove (31) is formed in the bottom wall of the connecting box (8), and the rope (13) penetrates through the through-line groove (31) to be fixedly connected with the fixing plate (29).
7. The material pulling, lifting and conveying device for bridge engineering construction according to claim 1, characterized in that: the inclined angle of the slope surface at the left part of the upper surface of the movable block (20) is 30 degrees; two connecting blocks (32) are fixedly connected to the lower surface of the movable block (20), two ball grooves (33) matched with the balls (22) in shape are respectively formed in the bottoms of the two connecting blocks (32), and the two balls (22) are respectively assembled in the two ball grooves (33) in a rolling mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010236843.7A CN111362163A (en) | 2020-03-30 | 2020-03-30 | Material pulling, lifting and conveying device for bridge engineering construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010236843.7A CN111362163A (en) | 2020-03-30 | 2020-03-30 | Material pulling, lifting and conveying device for bridge engineering construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111362163A true CN111362163A (en) | 2020-07-03 |
Family
ID=71202978
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010236843.7A Pending CN111362163A (en) | 2020-03-30 | 2020-03-30 | Material pulling, lifting and conveying device for bridge engineering construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111362163A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117622848A (en) * | 2024-01-26 | 2024-03-01 | 山西省交通规划勘察设计院有限公司 | Fly ash brick conveying device |
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| CN109052188A (en) * | 2018-10-08 | 2018-12-21 | 汤在英 | A kind of quick transfer crane of concrete pipe culvert for road construction |
| CN109941327A (en) * | 2017-12-20 | 2019-06-28 | 邓伟 | A kind of construction of safe protection engineering with can quickly discharging material material conveyor |
| CN110386548A (en) * | 2018-04-19 | 2019-10-29 | 宁夏澍侍信息科技有限公司 | A kind of energy conservation and environmental protection building decoration object hanging apparatus |
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2020
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2016100141A4 (en) * | 2016-02-10 | 2016-03-10 | edmonds, ian DR | A mobile crane for lifting and transporting beehives |
| CN206553126U (en) * | 2016-11-23 | 2017-10-13 | 江西省绿能农业发展有限公司 | A kind of grain lifting machine |
| CN207389025U (en) * | 2017-11-02 | 2018-05-22 | 昆明公路局机械化养护和应急中心 | A kind of multifunctional highway maintenance engineering truck |
| CN109941327A (en) * | 2017-12-20 | 2019-06-28 | 邓伟 | A kind of construction of safe protection engineering with can quickly discharging material material conveyor |
| CN110386548A (en) * | 2018-04-19 | 2019-10-29 | 宁夏澍侍信息科技有限公司 | A kind of energy conservation and environmental protection building decoration object hanging apparatus |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117622848A (en) * | 2024-01-26 | 2024-03-01 | 山西省交通规划勘察设计院有限公司 | Fly ash brick conveying device |
| CN117622848B (en) * | 2024-01-26 | 2024-04-09 | 山西省交通规划勘察设计院有限公司 | Fly ash brick conveying device |
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Application publication date: 20200703 |