CN111015930B - Tubular concrete pouring equipment - Google Patents
Tubular concrete pouring equipment Download PDFInfo
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- CN111015930B CN111015930B CN201911331818.0A CN201911331818A CN111015930B CN 111015930 B CN111015930 B CN 111015930B CN 201911331818 A CN201911331818 A CN 201911331818A CN 111015930 B CN111015930 B CN 111015930B
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- pouring
- pipeline
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- baffle
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- 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
- B28B21/00—Methods or machines specially adapted for the production of tubular articles
- B28B21/02—Methods or machines specially adapted for the production of tubular articles by casting into moulds
- B28B21/10—Methods or machines specially adapted for the production of tubular articles by casting into moulds using compacting means
- B28B21/22—Methods or machines specially adapted for the production of tubular articles by casting into moulds using compacting means using rotatable mould or core parts
- B28B21/30—Centrifugal moulding
- B28B21/34—Centrifugal moulding combined with vibrating or other additional compacting means
Abstract
The invention relates to a tubular concrete pouring device which comprises a pouring table with an inclined top surface, a transportation rail obliquely arranged on the top surface of the pouring table, a moving trolley arranged on the transportation rail, an arc-shaped bracket arranged on the moving trolley, a telescopic device arranged on the inner wall of the arc-shaped bracket, an auxiliary wheel arranged on the telescopic device, a pouring pipeline with one end fixed on the pouring table and the other end being a suspended end, a baffle arranged in the arc-shaped bracket and a rotating device arranged on the baffle and used for driving the pipeline arranged on the auxiliary wheel to rotate, wherein the inclined direction of the transportation rail is parallel to the inclined direction of the top surface of the pouring table. The invention is used for producing the tubular concrete in batches, the concrete flows into the pipeline from bottom to top in the production process, the production speed is high, the pouring quality is high, and the production cost of the tubular concrete can be effectively controlled.
Description
Technical Field
The invention relates to the technical field of concrete pouring, in particular to tubular concrete pouring equipment.
Background
Buildings assembled from prefabricated parts at the site are called fabricated buildings. With the increasing demand for energy conservation and emission reduction, green buildings and environmental protection in China, the development of assembly buildings begins to enter a high-speed development period, and related upstream and downstream industries begin to form scales.
However, the existing fabricated building has small market capacity and high construction cost, and the reduction of the production cost is an urgent problem to be solved. One of the more mature ways to build the overall frame of a building is to use a profile filled with concrete inside and then to build up floors and wall panels using prefabricated panels. The prefabricated panel is produced in the mill in this kind of mode, but the section bar that the inside was filled with the concrete is mostly production nearby or on-the-spot production, and the length of this kind of section bar is longer, and simple dependence material dead weight is pour, and pouring speed is too slow, also appears the cavity problem easily, and the cost of labor expenditure is high when pouring speed is slow, appears the cavity section bar and also can not restore, can only regard as waste product processing, also can cause a big extra cost expenditure.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide the tubular concrete pouring equipment which can reduce the manufacturing cost of tubular members.
The above object of the present invention is achieved by the following technical solutions:
a tubular concrete casting apparatus comprising:
the top surface of the pouring platform is an inclined plane;
the transportation rail is obliquely arranged on the top surface of the pouring table, and the axis of the transportation rail is parallel to the oblique direction of the top surface of the pouring table;
the movable trolley is arranged on the transportation track and used for driving the pipeline to be poured to move;
the arc bracket is arranged on the moving trolley;
the telescopic device is arranged on the inner wall of the arc-shaped bracket;
the auxiliary wheel is arranged on the telescopic device;
the pouring pipeline is parallel to the conveying track, one end of the pouring pipeline is fixed on the pouring platform, the other end of the pouring pipeline is a suspended end, and a gap is formed between the pouring pipeline and the top surface of the pouring platform;
the baffle is arranged in the arc-shaped bracket; and
and the rotating device is arranged on the baffle and used for driving the pipeline placed on the auxiliary wheel to rotate.
Through adopting above-mentioned technical scheme, place the pipeline that will pour on the travelling car, the travelling car drives the pipeline and removes to the direction that is close to pouring the pipeline, pours the pipeline and inserts in the pipeline. In the pouring process, the stirred concrete flows into the pipeline through the pouring pipeline, the moving trolley drives the pipeline to move towards the direction far away from the pipeline, the rotating device drives the pipeline to slowly rotate, and the pipeline is gradually filled with the concrete. Compare with the mode of relying on gravity to pour, this kind of mode can avoid appearing the air and remain to pour the process and go on automatically, pour quality and speed and can both obtain guaranteeing.
The invention is further configured to: the number of the telescopic devices in each group is three or more;
the multiple groups of the telescopic devices are arranged on the inner wall of the arc-shaped bracket at intervals along the axial direction of the arc-shaped bracket.
The invention is further configured to: and the auxiliary wheel is provided with an elastic pad.
Through adopting above-mentioned technical scheme, a plurality of auxiliary wheels butt simultaneously on the surface of pipeline can make the pipeline more stable, and the telescoping device can also be adjusted according to the diameter of pipeline simultaneously, makes the arc hold in the palm the interior pipeline that can place multiple specification of groove.
The invention is further configured to: the movable trolley comprises a trolley body, a roller arranged on the trolley body, a power device arranged on the trolley body and a gear arranged on the output end of the power device;
the roller is in contact with the conveying track;
a rack parallel to the transportation rail is arranged on the pouring platform;
the gear is meshed with the rack.
Through adopting above-mentioned technical scheme, power device drives the gear and moves on the rack, and then makes the travelling car can be pouring the bench and remove, and rack and pinion driven mode motion accuracy is high, and driving torque is big, can deal with the condition of pouring in-process pipeline weight and increasing gradually, and speed is comparatively stable, the condition that the speed becomes fast when weight increase can not appear.
The invention is further configured to: the device also comprises a vibrating device;
the vibrating device comprises guide rings arranged on the outer wall of the pouring pipeline at intervals, through holes uniformly distributed on the guide rings, vibrating rods sequentially penetrating through the corresponding through holes on the guide rings and a driving device arranged on the pouring platform;
the driving device is connected with the vibrating rod and used for driving the vibrating rod to slide in a reciprocating mode along the guide ring.
Through adopting above-mentioned technical scheme, in the concrete of vibrating rod repeated insertion pipeline, make concrete evenly distributed in the pipeline, even bubble has appeared in concrete inside, also can be punctured at the repeated insertion process of vibrating rod.
The invention is further configured to: and one end of the vibrating rod, which is far away from the driving device, is provided with a vibrating head.
Through adopting above-mentioned technical scheme, the head that vibrates is bulky, can further improve the effect of vibrating, improves the homogeneity that the concrete distributes in the pipeline, avoids appearing quality defects such as cavity.
The invention is further configured to: the number of the driving devices is the same as that of the vibrating rods, and each driving device is connected with the corresponding vibrating rod.
Through adopting above-mentioned technical scheme, a plurality of vibrating rods can be according to the order in inserting the concrete, time interval when can avoiding inserting simultaneously.
The invention is further configured to: the rotating device comprises a rotating shaft which is rotatably connected with the baffle, a turntable arranged on the rotating shaft and a rotating driving device arranged on the baffle;
the output end of the rotary driving device is connected with the rotating shaft;
the rotary table and the rotary driving device are respectively positioned at two sides of the baffle, and the rotary table is positioned at one side of the baffle close to the pouring pipeline.
Through adopting above-mentioned technical scheme, when rotary drive device rotated, can drive the carousel through the pivot and rotate, the pipeline of pressing on the carousel this moment also can rotate thereupon together, and the pipeline relies on the gravity of self to press on the carousel, just can rotate thereupon together after pipeline and the carousel contact, does not need extra fixed measure, and the operation is simpler.
In conclusion, the beneficial technical effects of the invention are as follows:
1. during production, the pipeline to be poured is placed on the movable trolley, the movable trolley drives the pipeline to move towards the direction close to the pouring pipeline, and the pouring pipeline is inserted into the pipeline. In the pouring process, the stirred concrete flows into the pipeline through the pouring pipeline, the moving trolley drives the pipeline to move towards the direction far away from the pipeline, the rotating device drives the pipeline to slowly rotate, and the pipeline is gradually filled with the concrete. Compare with the mode of relying on gravity to pour, this kind of mode can avoid appearing the air and remain to pour the process and go on automatically, pour quality and speed and can both obtain guaranteeing.
2. When pouring, the vibrating rod is repeatedly inserted into the concrete in the pipeline, so that the concrete is uniformly distributed in the pipeline, even if air bubbles appear in the concrete, the vibrating rod can be punctured in the repeated insertion process, and the quality defects of hollowness and the like can not occur.
3. The vibrating rods are sequentially inserted into concrete in the pipeline, the interval between adjacent insertion times is shorter, and the possibility of air bubbles in the concrete can be further reduced.
Drawings
Fig. 1 is a schematic diagram of an application provided by an embodiment of the present invention.
Fig. 2 is a schematic perspective view of an embodiment of the present invention.
Fig. 3 is a schematic structural diagram of a mobile cart according to an embodiment of the present invention.
FIG. 4 is a schematic view of the arrangement of a retractor device in an arc bracket according to an embodiment of the present invention.
Fig. 5 is a schematic structural diagram of a guide ring according to an embodiment of the present invention.
Fig. 6 is a schematic view of the connection between a driving device and a vibrating rod according to an embodiment of the present invention.
Fig. 7 is an enlarged schematic view of a portion B in fig. 6.
Fig. 8 is an enlarged schematic view of a portion a in fig. 2.
Fig. 9 is a schematic structural diagram of a rotating device according to an embodiment of the present invention.
In the figure, 11, a pouring table, 12, a transportation rail, 13, a moving trolley, 14, an arc bracket, 15, a telescopic device, 16, an auxiliary wheel, 17, a pouring pipeline, 18, a baffle, 19, a rotating device, 2, a vibrating device, 21, a guide ring, 22, a through hole, 23, a vibrating rod, 24, a driving device, 25, a vibrating head, 26, a connecting rod, 27, a sliding chute, 28, a sliding block, 131, a vehicle body, 132, a roller, 133, a power device, 134, a gear, 135, a rack, 151, an outer guide sleeve, 152, an inner guide sleeve, 153, a hydraulic cylinder, 161, an elastic pad, 191, a rotating shaft, 192, a rotating disc, 193 and a rotating driving device are arranged.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1 and 2, a pipe type concrete casting apparatus disclosed in an embodiment of the present invention mainly comprises a casting platform 11, a transportation rail 12, a mobile cart 13, a telescopic device 15, a casting pipeline 17, and the like. The main body of the pouring device is a pouring platform 11 which is placed on the ground, and the top surface of the pouring device is an inclined surface. The transportation rail 12 is fixedly installed on the top surface of the pouring table 11, and one end of the transportation rail is high and the other end of the transportation rail is low along the inclined direction of the top surface of the pouring table 11 and is parallel to the inclined direction of the top surface of the pouring table 11.
Referring to fig. 3, the moving cart 13 is located on the transporting rail 12 and can reciprocate on the transporting rail 12. The moving trolley 13 is provided with an arc-shaped bracket 14, the inner wall of the arc-shaped bracket 14 is provided with a plurality of telescopic devices 15, and the telescopic devices 15 face the axis of the arc-shaped bracket 14 and are used for lifting a pipeline placed in the arc-shaped bracket 14. An auxiliary wheel 16 is mounted on each telescopic device 15, and the auxiliary wheel 16 can rotate freely and has an axis parallel to the axis of the arc-shaped bracket 14.
The pouring pipe 17 is fixedly mounted on the pouring table 11 and faces the lower end of the pouring table 11. The axis of the casting pipe 17 is also parallel to the axis of the arc bracket 14, and further, the axes of the two can be coincident. The pouring pipeline 17 is positioned above the top surface of the pouring platform 11, and a gap is reserved between the pouring pipeline and the top surface of the pouring platform 11 and the inner wall of the arc-shaped bracket 14.
The inner wall of the arc-shaped bracket 14 is also provided with a baffle plate 18, the baffle plate 18 is provided with a set of rotating device 19, in the pouring process, the pipeline is placed in the arc-shaped bracket 14 on the movable trolley 13, and at the moment, the pipeline is inclined relative to the ground, so that the pipeline can slide obliquely downwards and stops after being contacted with the rotating device 19 on the baffle plate 18.
During production, a pipeline to be poured is placed on the telescopic device 15 on the inner wall of the arc-shaped bracket 14, and the auxiliary wheel 16 on the telescopic device 15 is grounded on the outer wall of the pipeline. After the pipeline is placed stably, the movable trolley 13 starts to move towards the direction close to the pouring pipeline 17, the pouring pipeline 17 is slowly inserted into the pipeline, and the movable trolley 13 stops after moving to a specified position.
The mixed concrete is then continuously poured into the pouring duct 17 and the concrete flows along the pouring duct 17 into the duct. With the continuous pouring process, the moving trolley 13 starts to move in the direction away from the pouring pipeline 17, the rotating device 19 simultaneously acts, the pipeline is driven to slowly rotate around the axis of the pipeline through friction, and the auxiliary wheel 16 abutted to the outer wall of the pipeline also starts to rotate. In the pouring process, the poured pipeline moves and rotates, so that the concrete is gradually filled in the pipeline.
Referring to fig. 4, the telescopic device 15 mainly comprises an outer guide sleeve 151 fixed on the inner wall of the arc bracket 14, an inner guide sleeve 152 slidably connected with the outer guide sleeve 151, and a hydraulic cylinder 153 with two ends respectively connected with the outer guide sleeve 151 and the inner guide sleeve 152, wherein during operation, the hydraulic cylinder 153 pushes the inner guide sleeve 152 to slide, so as to complete the lifting operation of the pipeline. The auxiliary wheel 16 is mounted on the inner guide sleeve 152 and is operatively positioned on the outer wall of the pipe to rotate as the pipe rotates.
The inner wall of the arc bracket 14 is provided with a plurality of groups of telescoping devices 15 which are arranged at intervals along the axis of the arc bracket 14, and the distances between the telescoping devices 15 in adjacent groups can be equal or different. The number of the telescopic devices 15 in each group is three or more, when the number is odd, one telescopic device is positioned at the lowest part of the arc-shaped bracket 14, and the rest telescopic devices are symmetrically distributed at two sides of the telescopic devices 15; when the number of the brackets is even, the brackets are uniformly distributed on the inner wall of the arc-shaped bracket 14.
Considering that the extension speed of the expansion device 15 cannot be kept consistent and the diameter of the outer circle of the pipe fluctuates within a certain range, a layer of elastic pad 161 is adhered to the side wall of the auxiliary wheel 16, and the elastic pad 161 is made of rubber and deforms after contacting with the pipe. Each auxiliary wheel 16 can all pass through the indirect contact of cushion 161 and pipeline like this, the local unsettled problem can not appear, and cushion 161 also can absorb the vibrations that the pipeline produced at the rotation in-process simultaneously, makes the pipeline pivoted more steady.
Referring back to fig. 3, the traveling carriage 13 is mainly composed of three parts, a body 131, rollers 132 and a power unit 133, the rollers 132 being mounted on the body 131 and pressing on the transport rail 12, and the power unit 133 being also mounted on the body 131 for pushing the body 131 to reciprocate on the transport rail 12.
The power device 133 mainly includes a motor and a speed reducer, and a rotating shaft of the motor is connected to an input end of the speed reducer. The output shaft of the speed reducer is connected with a gear 134 in a key mode, the top face of the pouring table 11 is provided with a rack 135, the rack 135 is parallel to the conveying rail 12 and located on one side of the conveying rail 12, and the gear 134 on the output shaft of the speed reducer is meshed with the rack 135. When the pouring platform 11 works, the motor outputs power, and the gear 134 is driven by the speed reducer to move on the rack 135, so that the vehicle body 131 is pushed to move on the pouring platform 11.
Referring to fig. 1 and 5, during the casting process, the casting pipe 17 can be as close to the bottom end of the pipe as possible and gradually move backwards as the casting process continues, but in the vicinity of the opening of the casting pipe 17, when the flow rate of the concrete is high, there is still a possibility of air bubbles, and in order to avoid this, the vibrating device 2 is added. The vibrating device 2 mainly comprises a plurality of guide rings 21, a plurality of vibrating rods 23, a driving device 24 and the like, and the guide rings 21 are fixed on the outer wall of the pouring pipeline 17. Each guide ring 21 is provided with a plurality of through holes 22, and the through holes 22 are uniformly arranged on the guide ring 21 around the axis of the guide ring 21.
The number of the vibrating rods 23 is the same as that of the through holes 22 on the guide ring 21, and each vibrating rod 23 sequentially passes through the corresponding through holes on all the guide rings 21. A drive means 24 is mounted on the casting table 11 for pulling the ram 23 to reciprocate. The driving device 24 can be a hydraulic cylinder or an air cylinder, and a piston rod thereof is directly hinged on the vibrating rod 23 to pull the vibrating rod 23 to reciprocate.
Referring to fig. 6, the number of the driving device 24 may be one, or may be multiple, when the driving device 24 is one, the vibrating rods 23 and the driving device 24 are simultaneously connected to a connecting member, and when the driving device 24 pulls the connecting member to move, the vibrating rods 23 move together with the connecting member.
When the number of the driving devices 24 is multiple, the driving devices 24 are directly arranged on the pouring platform 11 and are respectively connected with each vibrating rod 23, and when the driving devices 24 work, only the vibrating rods 23 connected with the driving devices are pulled to reciprocate.
Referring to fig. 1 and 7, considering that the distance between the driving devices 24 is relatively short during the casting process, in order to avoid concrete from splashing on the driving devices 24, a connecting rod 26 may be added between the vibrating rod 23 and the driving devices 24, the connecting rod 26 is hinged on the casting platform 11, and both ends of the connecting rod 26 are slidably connected with the vibrating rod 23 and the driving devices 24 respectively, specifically, the connection mode is as follows: a sliding groove 27 is formed at each end of the connecting rod 26, a sliding block 28 is arranged in the sliding groove 27, the sliding block 28 can freely slide in the sliding groove 27, and the vibrating rod 23 and the driving device 24 are respectively hinged on the two sliding blocks 28. This may increase the distance between the drive means 24 and the casting pipe 17.
Referring to fig. 8, in order to further improve the vibrating effect, a vibrating head 25 may be further installed at an end of the vibrating rod 23 away from the driving device 24, the vibrating head 25 and the vibrating rod 23 are connected by a screw or a bolt, and if necessary, a wire or a connecting pin may be used for secondary fixation to prevent the vibrating head 25 from falling off during the use.
Referring to fig. 1 and 9, the rotating device 19 of the baffle 18 is mainly composed of a rotating shaft 191, a rotating disc 192 and a rotating driving device 193, wherein the rotating shaft 191 is rotatably connected with the baffle 18, and both ends of the rotating shaft extend out of the baffle 18. The rotary plate 192 is fixed to one end of the rotary shaft 191 to be rotatable therewith. The rotation driving device 193 is composed of a motor and a speed reducer, the speed reducer is fixed on the baffle 18 by bolts, the output end of the speed reducer is connected with the rotating shaft 191, and the input end of the speed reducer is connected with the motor. When the motor works, the speed reducer and the rotating shaft 191 drive the turntable 192 to rotate, and further drive the pipeline pressed on the turntable 192 to rotate together.
In the pouring process, if the pouring pipeline 17 is bent due to an excessively long length, one or more universal wheels can be installed at the lowest position of the outer side surface of the pouring pipeline. In the pouring process, the universal wheels are pressed on the inner wall of the pipeline to play a supporting role, and the pouring pipeline 17 is prevented from being in direct contact with the pipeline.
The universal wheel uses bolt fixed connection on pouring pipeline 17, makes things convenient for the washing on the one hand, and on the other hand when the diameter of pipeline changes, the universal wheel of the suitable diameter of change that can be convenient or increase a support between universal wheel and pouring pipeline 17 make the universal wheel press on the inner wall of pipeline all the time.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (7)
1. The utility model provides a tubular concrete pouring equipment which characterized in that includes:
a pouring platform (11), the top surface of which is an inclined plane;
the transportation track (12) is obliquely arranged on the top surface of the pouring table (11), and the axis of the transportation track (12) is parallel to the oblique direction of the top surface of the pouring table (11);
the movable trolley (13) is arranged on the transportation track (12) and is used for driving the pipeline to be poured to move;
the arc bracket (14) is arranged on the movable trolley (13);
the telescopic device (15) is arranged on the inner wall of the arc bracket (14);
an auxiliary wheel (16) provided on the telescopic device (15);
the pouring pipeline (17) is parallel to the conveying track (12), one end of the pouring pipeline is fixed on the pouring platform (11), the other end of the pouring pipeline is a suspended end, and a gap is formed between the pouring pipeline and the top surface of the pouring platform (11);
the baffle (18) is arranged in the arc bracket (14); and
the rotating device (19) is arranged on the baffle (18) and is used for driving the pipeline placed on the auxiliary wheel (16) to rotate;
the rotating device (19) comprises a rotating shaft (191) rotatably connected with the baffle (18), a rotating disc (192) arranged on the rotating shaft (191) and a rotating driving device (193) arranged on the baffle (18);
the output end of the rotary driving device (193) is connected with the rotating shaft (191);
the rotary table (192) and the rotary driving device (193) are respectively positioned at two sides of the baffle (18), and the rotary table (192) is positioned at one side of the baffle (18) close to the pouring pipeline (17).
2. The tubular concrete casting equipment of claim 1, wherein: the number of the telescopic devices (15) is multiple, and the number of the telescopic devices (15) in each group is three or more;
the multiple groups of telescopic devices (15) are arranged on the inner wall of the arc-shaped bracket (14) at intervals along the axial direction of the arc-shaped bracket (14).
3. The tubular concrete casting apparatus of claim 1 or 2, wherein: an elastic pad (161) is arranged on the auxiliary wheel (16).
4. The tubular concrete casting equipment of claim 1, wherein: the movable trolley (13) comprises a trolley body (131), rollers (132) arranged on the trolley body (131), a power device (133) arranged on the trolley body (131) and a gear (134) arranged on the output end of the power device (133);
the roller (132) is in contact with the transport rail (12);
a rack (135) parallel to the transportation rail (12) is arranged on the pouring table (11);
the gear (134) is engaged with the rack (135).
5. The tubular concrete casting equipment of claim 1, wherein: the device also comprises a vibrating device (2);
the vibrating device (2) comprises guide rings (21) arranged on the outer wall of the pouring pipeline (17) at intervals, through holes (22) uniformly distributed on the guide rings (21), vibrating rods (23) sequentially penetrating through the corresponding through holes (22) on the guide rings (21) and a driving device (24) arranged on the pouring table (11);
the driving device (24) is connected with the vibrating rod (23) and used for driving the vibrating rod (23) to slide in a reciprocating mode along the guide ring (21).
6. The tubular concrete casting apparatus of claim 5, wherein: and a vibrating head (25) is arranged at one end of the vibrating rod (23) far away from the driving device (24).
7. The tubular concrete casting apparatus of claim 5, wherein: the number of the driving devices (24) is the same as that of the vibrating rods (23), and each driving device (24) is connected with the corresponding vibrating rod (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911331818.0A CN111015930B (en) | 2019-12-21 | 2019-12-21 | Tubular concrete pouring equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911331818.0A CN111015930B (en) | 2019-12-21 | 2019-12-21 | Tubular concrete pouring equipment |
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| Publication Number | Publication Date |
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| CN111015930A CN111015930A (en) | 2020-04-17 |
| CN111015930B true CN111015930B (en) | 2021-08-06 |
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| CN201911331818.0A Active CN111015930B (en) | 2019-12-21 | 2019-12-21 | Tubular concrete pouring equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111805707B (en) * | 2020-07-21 | 2021-06-15 | 广东永基电力器材厂有限公司 | Concrete power cover plate forming and pouring mold and forming and pouring process |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2100657B (en) * | 1981-06-22 | 1984-10-10 | Amey Roadstone Corp | Centrifugal moulding concrete pipe |
| CN2374322Y (en) * | 1999-05-27 | 2000-04-19 | 河南省水利科学研究所 | Internally viberating extruding continuously depositing concrete tuber |
| CN203901510U (en) * | 2014-06-12 | 2014-10-29 | 湖南志同兴环保建材有限公司 | Concrete pipe centrifugal forming system |
| KR101642689B1 (en) * | 2014-06-30 | 2016-07-26 | 강말선 | Vibrate circle pipe forming mold |
| CN208163973U (en) * | 2018-03-05 | 2018-11-30 | 刘岩 | Concrete duct rapid molding device |
| CN108825299B (en) * | 2018-05-30 | 2020-12-04 | 贵州锦丰矿业有限公司 | Movable filling pipeline device and construction method |
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