A method for preparing a concrete drainage pipe with earthquake-resistant function

Abstract

The present invention belongs to the technical field of pipeline preparation, and in particular, relates to a method for preparing a concrete drainage pipe with earthquake resistance, including producing a concrete pipeline as required, preparing a steel mold, locking two steel molds together, and installing a steel skeleton, then hoisting the steel mold after mold closing to a centrifuge through a lifting device, then installing the steel mold on the centrifuge with a limit, preparing concrete raw materials, feeding them into a concrete mixer in sequence according to a preset ratio, and passing the mixed concrete material into a feeder. The present invention can simultaneously carry out the support production inside the concrete pipeline at the initial stage of concrete pipeline forming, and the reinforced concrete of the reinforced support can be kept integrated with the concrete pipeline, and while having a good reinforcement effect, the concrete pipeline will not be damaged, and there is no need to modify the original steel mold, thereby improving the earthquake resistance of the concrete drainage pipe.

Description

Technical Field

[0001] The invention belongs to the technical field of pipeline preparation, and in particular relates to a method for preparing a concrete drainage pipe with earthquake-resistant function. Background Art

[0002] Concrete drain pipe is one of the common drainage pipes, which can undertake drainage tasks such as rainwater, sewage, and farmland irrigation and drainage. Concrete drain pipes generally have a larger diameter, simple structure, and low cost, so they are widely used.

[0003] At present, for the preparation of large-diameter concrete pipes, the corresponding mold is generally driven by a centrifuge to rotate at high speed, and concrete is fed into the rotating mold. Under the action of centrifugal force, the concrete can fit inside the mold. After curing, the mold is disassembled to obtain a large-diameter concrete pipe. However, due to the large diameter of the concrete pipe, after it is buried underground, it needs to bear the uneven settlement pressure of the soil layer and the vibration pressure applied by external heavy vehicles through the soil layer for a long time. Due to the large force area of ​​the large-diameter concrete pipe and the general seismic resistance, it is easy to be damaged. The structural strength of the original concrete pipe itself is easily destroyed by adding a support structure inside the concrete pipe at a later time. For this reason, we propose a method for preparing a concrete drainage pipe with seismic function to solve the above problems. Summary of the invention

[0004] The purpose of the present invention is to provide a method for preparing a concrete drainage pipe with earthquake-resistant function in view of the above problems.

[0005] To achieve the above object, the present invention adopts the following technical solution: a method for preparing a concrete drainage pipe with earthquake resistance, comprising the following steps:

[0006] S1. Prepare steel molds according to the concrete pipes to be produced;

[0007] S2, the two steel molds in step S1 are locked together and a steel frame is installed. Then, the steel mold after the mold is closed is lifted to the centrifuge by a lifting device, and then the steel mold is limitedly installed on the centrifuge;

[0008] S3, prepare the concrete raw materials, put them into the concrete mixer in sequence according to the preset proportion, and pass the mixed concrete materials into the feeder;

[0009] S4, starting the centrifuge and controlling the feeder to move so that the discharge end is inserted into the steel mold after the mold is closed, and then the feeder is used to feed the material at a uniform speed and move the feeder slowly until the concrete pipe is formed as a whole;

[0010] S5, withdraw the feeder from the steel mold, and shut down the feeder to allow the centrifuge to continue working;

[0011] S6. During the operation of the centrifuge, the reinforcement device is passed through the interior of the concrete pipe and connected to the discharge end of the feeder, and then the inner support reinforcement treatment is performed. After the inner support reinforcement treatment is completed, the concrete pipe is maintained, and then the formwork is removed to obtain the concrete pipe;

[0012] The above-mentioned reinforcement equipment for reinforcing the inside of a concrete pipe includes a machine base, a side wall of the machine base is rotatably connected to an output rod, and a plurality of circular plates are provided on one side of the output rod, a hollow rod is fixedly inserted into the side wall of each circular plate, and each circular plate is fixedly connected to the circular plate on the same side through the hollow rod on the same side, four groups of internal support molds are provided on the outer side of each circular plate, and internal support steel bars are provided between two internal support molds in the same group, the feeder is connected to a feeding mechanism with each circular plate through a plurality of hollow rods, a driving motor is fixedly installed on the side wall of the machine base, and the output end of the driving motor is transmission-connected to the output rod.

[0013] Preferably, the feeding mechanism includes a feeding pipe fixedly inserted into the end of one of the hollow rods, and the end of the feeding pipe is connected to a rotating connector, and the end of the feeding pipe is fixedly connected to the discharge end of the feeder through the rotating connector, and each of the circular plates is provided with a cavity inside, and each cavity is fixedly connected to the hollow rod on the same side, and the cavity wall of each of the cavities is fixedly inserted with four stainless steel hoses, and each of the stainless steel hoses is fixedly connected to the mold cavity of a group of inner support molds on the same side.

[0014] Preferably, the side walls of each circular plate are integrally formed with a protrusion, and an electric push rod is fixedly inserted at the end of each protrusion, and the output end of each electric push rod is connected to a mounting assembly together with a group of inner support molds on the same side.

[0015] Preferably, a base is provided below the machine base, and a height adjustment mechanism is commonly connected to the base and the machine base, and four universal wheels are fixedly provided at the lower end of the base.

[0016] Preferably, each of the mounting components includes a mounting block fixedly arranged at the output end of the electric push rod, and the side walls on the opposite sides of the two inner support molds in the same group are fixedly connected with L-shaped connecting blocks, and the side walls of the two L-shaped connecting blocks are threadedly connected with the side walls of the mounting block on the same side with mounting bolts.

[0017] Preferably, the height adjustment mechanism includes hydraulic cylinders fixedly mounted on both sides of the base end surfaces, and the output ends of the two hydraulic cylinders are fixedly connected to lifting blocks, and the ends of the two lifting blocks are fixedly connected to the side walls of the base.

[0018] Preferably, a guide rod is fixedly connected to the end surface of the base, and a rod wall of the guide rod is slidably connected to the end surface of the base.

[0019] Preferably, before the steel mold is closed, a release agent needs to be evenly applied on the inner wall.

[0020] Preferably, before the molds are closed, a mold release agent needs to be evenly applied on the inner wall of each group of inner support molds.

[0021] Preferably, a battery assembly is fixedly mounted on the side wall of each of the protrusions, and each of the battery assemblies is electrically connected to the electric push rod on the same side.

[0022] Compared with the existing technology, the advantages of a method for preparing a concrete drainage pipe with earthquake resistance are:

[0023] 1. Through steps S1 to S6, the preparation of the concrete pipe can be completed, and through the cooperation of the base, output rod, circular plate, hollow rod, internal support mold, internal support steel bar and driving motor arranged inside the reinforcement equipment, after the initial forming of the concrete, the circular plate and the centrifuge can be synchronously rotated and ejected to complete the reinforcement support of multiple reinforced concretes, thereby improving the overall structural strength of the prepared concrete pipe and having good seismic performance. Moreover, since the reinforcement support is carried out in the early stage of the preparation of the concrete pipe, the reinforced concrete of the reinforcement support can be kept integrated with the concrete pipe, and the reinforcement effect is good without damaging the concrete pipe and without modifying the original steel mold.

[0024] 2. Through the feeding mechanism, the concrete feeding inside all the inner support molds can be completed at one time by rotating the feeding method. It is easy to use. Through the cooperation of the provided base, universal wheels and height adjustment mechanism, the machine base can be easily moved, and the height of the machine base can be adjusted to improve the scope of application. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of a reinforcement device for a method for preparing a concrete drainage pipe with earthquake resistance provided by the present invention;

[0026] Figure 2 It is a schematic diagram of the connection structure of the reinforcement equipment and the steel mold in the method for preparing a concrete drainage pipe with earthquake resistance provided by the present invention;

[0027] Figure 3 It is an enlarged structural schematic diagram of part A of a method for preparing a concrete drainage pipe with earthquake resistance provided by the present invention;

[0028] Figure 4 It is an enlarged structural schematic diagram of part B of a method for preparing a concrete drainage pipe with earthquake resistance provided by the present invention.

[0029] In the figure: 1. Concrete pipe; 2. Steel mold; 3. Feeder; 4. Reinforcement equipment; 5. Machine base; 6. Output rod; 7. Round plate; 8. Hollow rod; 9. Inner support mold; 10. Inner support steel bar; 11. Drive motor; 12. Feed pipe; 13. Rotary connector; 14. Cavity; 15. Stainless steel hose; 16. Bump; 17. Electric push rod; 18. Base; 19. Universal wheel; 20. Mounting block; 21. L-shaped connecting block; 22. Mounting bolt; 23. Hydraulic cylinder; 24. Lifting block; 25. Guide rod; 26. Battery assembly. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0031] like Figure 1-4 As shown, a method for preparing a concrete drainage pipe with earthquake resistance comprises the following steps:

[0032] S1, prepare a steel mold 2 according to the concrete pipe 1 to be produced as needed;

[0033] S2, the two steel molds 2 in step S1 are locked together and a steel bar skeleton is installed. Then, the steel molds 2 after mold closing are lifted to the centrifuge by a lifting device, and then the steel molds 2 are limitedly installed on the centrifuge;

[0034] S3, prepare the concrete raw materials, put them into the concrete mixer in sequence according to the preset proportion, and pass the mixed concrete materials into the feeder 3;

[0035] S4, start the centrifuge, and control the feeder 3 to move so that the discharge end is inserted into the steel mold 2 after the mold is closed, and then feed the material at a uniform speed through the feeder 3, and move the feeder 3 slowly until the concrete pipe 1 is formed as a whole;

[0036] S5, withdraw the feeder 3 from the steel mold 2, and shut down the feeder 3, so that the centrifuge continues to work;

[0037] S6. During the operation of the centrifuge, the reinforcement device 4 is passed through the interior of the concrete pipe 1 and connected to the discharge end of the feeder 3, and then the internal support reinforcement treatment is performed. After the internal support reinforcement treatment is completed, the concrete pipe 1 is cured, and then the formwork is removed to obtain the concrete pipe 1;

[0038] The above-mentioned reinforcement equipment 4 for reinforcing the interior of the concrete pipe 1 includes a machine base 5, the side wall of the machine base 5 is rotatably connected to the output rod 6, and a plurality of circular plates 7 are provided on one side of the output rod 6, the side wall of each circular plate 7 is fixedly inserted with a hollow rod 8, and each circular plate 7 is fixedly connected to the circular plate 7 on the same side through the hollow rod 8 on the same side, four groups of internal support molds 9 are provided on the outer side of each circular plate 7, and internal support steel bars 10 are provided between two internal support molds 9 in the same group, the feeder 3 is connected to each circular plate 7 through a plurality of hollow rods 8 to form a feeding mechanism, and a drive motor 11 is fixedly installed on the side wall of the machine base 5, and the output end of the drive motor 11 is transmission-connected to the output rod 6.

[0039] The feeding mechanism includes a feed pipe 12 fixedly inserted into the end of one of the hollow rods 8, and the end of the feed pipe 12 is connected to a rotary connector 13. The end of the feed pipe 12 is fixedly connected to the discharge end of the feeder 3 through the rotary connector 13. A cavity 14 is opened inside each circular plate 7, and each cavity 14 is fixedly connected to the hollow rod 8 on the same side. Four stainless steel hoses 15 are fixedly inserted into the cavity wall of each cavity 14, and each stainless steel hose 15 is fixedly connected to the cavity of a group of inner support molds 9 on the same side. The rotary connector 13 is a rotary connection device between pipelines. This is an existing mature technology, so it will not be elaborated here.

[0040] The side walls of each circular plate 7 are integrally formed with a protrusion 16, and the end of each protrusion 16 is fixedly plugged with an electric push rod 17. The output end of each electric push rod 17 is connected to a group of inner support molds 9 on the same side with an installation component, which can facilitate the ejection of each inner support mold 9.

[0041] A base 18 is provided below the machine base 5 , and a height adjustment mechanism is connected to the base 18 and the machine base 5 . Four universal wheels 19 are fixedly provided at the lower end of the base 18 , so as to facilitate the support and movement of the machine base 5 .

[0042] Each mounting assembly includes a mounting block 20 fixedly arranged at the output end of the electric push rod 17. The side walls on the opposite sides of the two inner support molds 9 in the same group are fixedly connected with L-shaped connecting blocks 21, and the side walls of the two L-shaped connecting blocks 21 are threadedly connected with the side walls of the mounting block 20 on the same side with mounting bolts 22, which can facilitate the installation and mold closing work of the inner support mold 9.

[0043] The height adjustment mechanism includes hydraulic cylinders 23 fixedly mounted on both sides of the end faces of the base 18, and the output ends of the two hydraulic cylinders 23 are fixedly connected to lifting blocks 24, and the ends of the two lifting blocks 24 are fixedly connected to the side walls of the base 5, so that the height of the base 5 can be adjusted, thereby facilitating regulation to keep the circular plate 7 and the steel mold 2 in a coaxial state.

[0044] The end surface of the base 18 is fixedly connected with a guide rod 25 , and the rod wall of the guide rod 25 is slidably connected to the end surface of the base 5 , which can facilitate the stable movement of the base 5 .

[0045] Before the steel mold 2 is molded, a release agent needs to be evenly applied to the inner wall to facilitate the demoulding and disassembly of the steel mold 2.

[0046] Before the molds of each group of inner support molds 9 are closed, a mold release agent needs to be evenly applied to the inner wall to facilitate the demoulding and disassembly of the inner support molds 9.

[0047] A battery assembly 26 is fixedly mounted on the side wall of each protrusion 16 , and each battery assembly 26 is electrically connected to the electric push rod 17 on the same side, so as to facilitate power supply to each electric push rod 17 .

[0048] The operating principle of the present invention is now described as follows: according to the concrete pipe 1 to be produced, a steel mold 2 is prepared, two steel molds 2 are molded and locked, and a steel skeleton is installed. Subsequently, the molded steel mold 2 is lifted to the centrifuge by a lifting device, and then the steel mold 2 is limitedly installed on the centrifuge, and concrete raw materials are prepared, and they are sequentially put into the concrete mixer according to a preset ratio, and the mixed concrete material is passed into the feeder 3, the centrifuge is started, and the feeder 3 is controlled to move so that the discharge end is inserted into the steel mold 2 after the mold is closed, and then the feeder 3 is used to feed at a uniform speed, and the feeder 3 is moved slowly until the concrete pipe 1 is formed as a whole, the feeder 3 is withdrawn from the steel mold 2, and the feeder 3 is shut down to allow the centrifuge to continue working. During the operation of the centrifuge, the reinforcement device 4 is moved Move to one side of the steel mold 2, and insert each circular plate 7 and hollow rod 8 coaxially into the steel mold 2, then fix the hollow rod 8 with the discharge end of the feeder 3 through the rotary connector 13, and then start the drive motor 11, which can drive multiple circular plates 7 and hollow rods 8 to rotate synchronously through the output rod 6, so that the rotation speed of the circular plates 7 and hollow rods 8 is kept the same as the rotation speed of the centrifuge. At this time, through the work of each electric push rod 17, each group of inner support molds 9 can be pushed out, so that the inner support steel bars 10 inside the inner support mold 9 can be made. Then, concrete can be supplied to the inside of each inner support mold 9 through the feeder 3, hollow rod 8, cavity 14 and stainless steel hose 15. After the feeding is completed, keep the output rod 6 and the centrifuge rotating at the same speed for at least 3 hours, then carry out concrete curing, and after the curing is completed, remove the mold and take out the pipe.

[0049] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for preparing a concrete drainage pipe with earthquake resistance, the method comprising the following steps: S1. Prepare a steel mold (2) according to the concrete pipe (1) to be produced; S2, the two steel molds (2) in step S1 are locked together and a steel frame is installed. Subsequently, the steel mold (2) after the mold is locked is lifted onto the centrifuge by a lifting device, and then the steel mold (2) is limitedly installed on the centrifuge; S3, prepare concrete raw materials, put them into the concrete mixer in sequence according to the preset proportion, and pass the mixed concrete materials into the feeder (3); S4, starting the centrifuge and controlling the feeder (3) to move so that the discharge end thereof is inserted into the interior of the steel mold (2) after the mold is closed, and then the feeder (3) is used to feed the material at a uniform speed and the feeder (3) is moved slowly until the concrete pipe (1) is formed as a whole; S5, withdrawing the feeder (3) from the steel mold (2), and shutting down the feeder (3), so that the centrifuge continues to work; S6. During the operation of the centrifuge, the reinforcement device (4) is passed through the interior of the concrete pipe (1) and connected to the discharge end of the feeder (3), and then an internal support reinforcement process is performed. After the internal support reinforcement process is completed, the concrete pipe (1) is cured and then the formwork is removed to obtain the concrete pipe (1); The reinforcement device (4) for reinforcing the interior of a concrete pipe (1) comprises a machine base (5), the side wall of the machine base (5) is rotatably connected to an output rod (6), and a plurality of circular plates (7) are provided on one side of the output rod (6), the side wall of each circular plate (7) is fixedly plugged with a hollow rod (8), and each circular plate (7) is fixedly connected to the circular plate (7) on the same side through the hollow rod (8) on the same side, the outer side of each circular plate (7) is provided with four groups of inner support molds (9), and inner support steel bars (10) are provided between two inner support molds (9) in the same group, the feeder (3) is connected to a feeding mechanism with each circular plate (7) through the plurality of hollow rods (8), and a drive motor (11) is fixedly installed on the side wall of the machine base (5), and the output end of the drive motor (11) is transmission-connected to the output rod (6).

2. The method for preparing a concrete drainage pipe with earthquake resistance according to claim 1, characterized in that: The feeding mechanism comprises a feeding pipe (12) fixedly plugged into the end of one of the hollow rods (8), and the end of the feeding pipe (12) is connected to a rotary connector (13), and the end of the feeding pipe (12) is fixedly connected to the discharge end of the feeder (3) through the rotary connector (13); each of the circular plates (7) is provided with a cavity (14), and each cavity (14) is fixedly connected to the hollow rod (8) on the same side; the cavity wall of each cavity (14) is fixedly plugged with four stainless steel hoses (15), and each stainless steel hose (15) is fixedly connected to the mold cavity of a group of inner support molds (9) on the same side.

3. The method for preparing a concrete drainage pipe with earthquake resistance according to claim 1, characterized in that: The side walls of each circular plate (7) are integrally formed with a protrusion (16), and the end of each protrusion (16) is fixedly plugged with an electric push rod (17), and the output end of each electric push rod (17) is connected to a mounting assembly of a group of inner support molds (9) on the same side.

4. The method for preparing a concrete drainage pipe with earthquake resistance according to claim 1, characterized in that: A base (18) is provided below the machine base (5), and the base (18) and the machine base (5) are connected together with a height adjustment mechanism, and four universal wheels (19) are fixedly provided at the lower end of the base (18).

5. The method for preparing a concrete drainage pipe with earthquake resistance according to claim 3, characterized in that: Each of the mounting assemblies comprises a mounting block (20) fixedly arranged at the output end of the electric push rod (17), and the side walls on the opposite sides of the two inner support molds (9) in the same group are fixedly connected with an L-shaped connecting block (21), and the side walls of the two L-shaped connecting blocks (21) are threadedly connected with the side walls of the mounting block (20) on the same side by mounting bolts (22).

6. The method for preparing a concrete drainage pipe with earthquake resistance according to claim 4, characterized in that: The height adjustment mechanism comprises hydraulic cylinders (23) fixedly mounted on both sides of the end surface of the base (18), and the output ends of the two hydraulic cylinders (23) are fixedly connected to lifting blocks (24), and the ends of the two lifting blocks (24) are fixedly connected to the side walls of the machine base (5).

7. The method for preparing a concrete drainage pipe with earthquake resistance according to claim 4, characterized in that: The end surface of the base (18) is fixedly connected to a guide rod (25), and the rod wall of the guide rod (25) is slidably connected to the end surface of the machine base (5).

8. The method for preparing a concrete drainage pipe with earthquake resistance according to claim 1, characterized in that: Before the steel mold (2) is molded, a mold release agent needs to be evenly applied on the inner wall.

9. The method for preparing a concrete drainage pipe with earthquake resistance according to claim 1, characterized in that: Before the molds of each group of inner support molds (9) are closed, a mold release agent needs to be evenly applied on the inner wall.

10. The method for preparing a concrete drainage pipe with earthquake resistance according to claim 3, characterized in that: A battery assembly (26) is fixedly mounted on the side wall of each of the protrusions (16), and each of the battery assemblies (26) is electrically connected to the electric push rod (17) on the same side.

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