PCCP grouting device

Abstract

The utility model discloses a PCCP (prestressed concrete cylinder pipe) grouting device, belongs to the technical field of PCCP processing, and mainly solves the technical problems that mortar is blocked in the filling process due to the viscosity of the mortar, and when the mortar flows into a wrapping tape, the flowing speed is high, impact force is caused to the wrapping tape, the wrapping tape for grouting is difficult to bear impact, and the grouting efficiency is high in the prior art. The grouting device comprises a mixing hopper, the bottom of the mixing hopper communicates with a grout outlet pipe, the bottom end of the grout outlet pipe is connected with a material conveying pipe, two symmetrical mounting bottom plates are arranged below the material conveying pipe, two telescopic rods are mounted at the tops of the mounting bottom plates, and the top ends of the telescopic rods are fixedly connected with a supporting frame; a mounting seat is arranged at the top of the supporting frame, a grouting pipe penetrates through the mounting seat, the top end of the grouting pipe communicates with a grouting hopper, a rotating motor is mounted in the grouting hopper through a supporting plate, the output end of the rotating motor is rotationally connected with a spiral conveying shaft through a bearing, and spiral blades are arranged on the surface of the spiral conveying shaft.

Description

Technical Field

[0001] This utility model relates to the field of PCCP processing technology, and more specifically, to a PCCP grouting device. Background Technology

[0002] PCCP, short for prestressed concrete cylinder pipe, refers to a water pipe made by winding circumferential prestressed steel wires around a high-strength concrete core with a steel cylinder, and then spraying a dense cement mortar protective layer on it. It is a composite pipe made of thin steel plate, high-strength steel wire and concrete. It fully and comprehensively utilizes the tensile strength and easy sealing properties of steel and the compressive strength and corrosion resistance of concrete. It has the characteristics of high sealing performance, high strength and high impermeability. In the production process of PCCP, the concrete used needs to be grouted. The grouting and molding of PCCP core are all done manually. The mixed concrete material is added into the core mold with a shovel and grouting is performed using a grouting device.

[0003] However, existing grouting devices are diverse. For example, utility model patent CN203546724U relates to an auxiliary grouting device for PCCP pipes. This utility model includes a hopper frame, a conical hopper installed on the hopper frame, a grout delivery pipe installed below the conical hopper, and a control valve installed between the grout delivery pipe and the conical hopper. The grout delivery pipe has an exhaust port. The exhaust port is located at the upper part of the grout delivery pipe, with the exhaust outlet facing upwards and the exhaust direction upwards. The exhaust port is covered by a vacuum tube, which is connected to a vacuum pump. This auxiliary grouting device for PCCP pipes, by providing an exhaust port on the grout delivery pipe, with the exhaust port covered by a vacuum tube connected to a vacuum pump, can effectively avoid air bubbles and voids, completing the grouting operation in one go, significantly improving work efficiency and reducing construction costs. Through the design of the control valve, it can accurately control the grouting volume and improve the rational utilization of grout.

[0004] Although this grouting device can complete the grouting operation in one go and has high working efficiency, the grout's viscosity can easily cause blockage during the grouting process. Furthermore, when the grout flows into the grouting tape, the high flow rate can cause impact on the tape, which the grouting tape cannot withstand, thus affecting the normal progress of the grouting operation. To avoid this phenomenon, it is essential to design a PCCP grouting device. Utility Model Content

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0006] To achieve the above objectives, this utility model provides a PCCP grouting device, which is accomplished by the following specific technical means:

[0007] A PCCP grouting device includes a mixing hopper, with a grout outlet pipe connected to the bottom of the mixing hopper. A conveying pipe is connected to the bottom end of the grout outlet pipe. Two symmetrical mounting base plates are arranged below the conveying pipe. Two telescopic rods are installed on the top of the mounting base plates. A support frame is fixedly connected to the top of the telescopic rods. A mounting seat is provided on the top of the support frame. A grouting pipe is inserted through the mounting seat. The top end of the grouting pipe is connected to the grouting hopper. A rotary motor is installed in the grouting hopper through a support plate. The output end of the rotary motor is rotatably connected to a screw conveyor shaft through a bearing. One end of the screw conveyor shaft extends into the grouting pipe. Spiral blades are provided on the surface of the screw conveyor shaft.

[0008] Preferably, a cylindrical grouting strip is placed at the bottom of the support frame, and the grouting strip can fit tightly against the inner side of the matching support frame. A grouting port is opened at the top of the grouting strip, and the bottom end of the grouting pipe can extend into the grouting port.

[0009] Preferably, the grouting tape includes a closed-cell foam board, bamboo strips, and a tensioner. The closed-cell foam board is cylindrical, and a first steel wire rope is wound around the outer surface of the closed-cell foam board. Several bamboo strips are arranged around the first steel wire rope in a ring. A second steel wire rope is wound around the outer side of the bamboo strips. Both the first and second steel wire ropes are tightened by the tensioner.

[0010] Preferably, a control valve is provided on the surface of the discharge pipe, and the conveying pipe is inclined; the protective cover is fixed on the support plate, and the rotating motor is located inside the protective cover.

[0011] Preferably, the mixing hopper is rotatably connected to a stirring shaft via a bearing, and multiple stirring rods are fixedly connected to the surface of the stirring shaft. The multiple stirring rods are located inside the mixing hopper, and a protective cover plate is provided on the top of the mixing hopper via a hinge.

[0012] Preferably, the mixing hopper is provided with a housing, and a servo motor is installed inside the housing, with the output end of the servo motor fixedly connected to one end of the stirring shaft.

[0013] Preferably, two casters are installed at the bottom of the mounting base plate; multiple fixed supports are fixed at the bottom of the mixing hopper, and the fixed supports are fixed to the conveying pipe by connecting rods.

[0014] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art:

[0015] When grouting into the grouting strip, the support frame is moved above the grouting strip, and then lowered by the telescopic rod, so that the support frame fits tightly against the annular grouting strip. Meanwhile, the mortar in the mixing hopper is discharged from the grout outlet pipe and transported into the grouting hopper through the conveying pipe. At this time, the rotating motor provides driving force to the screw conveyor shaft, and the movable screw blades push the mortar to flow slowly on the inner wall of the grouting pipe, thereby preventing the mortar from clogging in the grouting pipe. After being conveyed by the screw, the flowing mortar is slowly fed into the grouting port, reducing the impact force of the mortar entering the strip and avoiding huge impact on the grouting strip, so as to ensure the normal progress of the grouting operation. Attached Figure Description

[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a perspective structural diagram of the present invention;

[0019] Figure 3 This is a structural schematic diagram of the support frame;

[0020] Figure 4 A schematic diagram of the structure inside the grouting hopper and grouting pipe;

[0021] Figure 5 This is a schematic diagram of the grouting band structure;

[0022] Figure 6 This is a schematic diagram of the structure inside the mixing hopper.

[0023] In the diagram: 1. Mixing hopper; 2. Grout outlet pipe; 3. Conveying pipe; 4. Mounting base plate; 5. Telescopic rod; 6. Support frame; 7. Mounting seat; 8. Grouting pipe; 9. Grouting hopper; 10. Support plate; 11. Rotary motor; 12. Screw conveyor shaft; 13. Screw blade; 14. Protective cover; 15. Grouting wrap; 16. Closed-cell foam board; 17. Bamboo strip; 18. Rope tensioner; 19. Caster wheel; 20. Mixing shaft; 21. Mixing rod; 22. Servo motor; 23. Protective cover plate; 24. Fixed support rod; 25. Connecting rod. Detailed Implementation

[0024] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0025] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0026] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments. The present invention provides the following embodiments.

[0027] like Figure 2 , Figure 3 as well as Figure 4 As shown, this is a schematic diagram of the PCCP grouting device in this embodiment. The grouting device in this embodiment includes a mixing hopper 1, with a grout outlet pipe 2 connected to the bottom of the mixing hopper 1. A conveying pipe 3 is connected to the bottom end of the grout outlet pipe 2. Two symmetrical mounting base plates 4 are arranged below the conveying pipe 3. Two telescopic rods 5 are installed on the top of the mounting base plates 4. A support frame 6 is fixedly connected to the top of the telescopic rods 5. A mounting seat 7 is provided on the top of the support frame 6. A grouting pipe 8 is inserted through the mounting seat 7. The top end of the grouting pipe 8 is connected to... A grouting hopper 9 is provided, and a rotary motor 11 is installed inside the grouting hopper 9 via a support plate 10. The output end of the rotary motor 11 is rotatably connected to a screw conveyor shaft 12 via a bearing, and one end of the screw conveyor shaft 12 extends into the grouting pipe 8. Spiral blades 13 are provided on the surface of the screw conveyor shaft 12. A cylindrical grouting wrap 15 is placed at the bottom of the support frame 6, and a grouting port is opened at the top of the grouting wrap 15. The bottom end of the grouting pipe 8 can extend into the grouting port. When grouting into the grouting wrap 15, first... The mounting base plate 4 is moved so that the support frame 6 is positioned above the grouting wrap 15. Then, the support frame 6 is lowered via the installed telescopic rod 5, tightly fitting the arc-shaped support frame 6 onto the annular grouting wrap 15, and embedding the end of the grouting pipe 8 into the grouting port. The control valve is then opened, allowing the mortar in the mixing hopper 1 to discharge from the outlet pipe 2. After being conveyed by the conveying pipe 3, the mortar flows from the tail end of the conveying pipe 3 into the grouting hopper 9. At this point, the rotary motor 11 is started, and the rotary motor 11 powers the spiral... The conveying shaft 12 provides driving force, causing the spiral conveying shaft 12 to drive the spiral blades 13 on the surface to move. The movable spiral blades 13 push the concrete mortar to flow slowly on the inner wall of the grouting pipe 8, thereby preventing the mortar from getting blocked in the grouting pipe 8. After the flowing mortar is conveyed by the spiral, it is slowly fed into the grouting port, thus reducing the impact force of the mortar entering the grouting band and avoiding the grouting band 15 from being subjected to huge impact, so as to ensure the normal progress of the grouting operation and prevent the mortar from splashing everywhere at the grouting port.

[0028] It is worth noting that in this embodiment, the surface of the slurry outlet pipe 2 is provided with a control valve, which can be used to block the discharged concrete material. The conveying pipe 3 is inclined. The protective cover 14 is fixed on the support plate 10, and the rotary motor 11 is located inside the protective cover 14.

[0029] like Figure 5 As shown, this is a schematic diagram of the structure of the grouting wrapping tape 15 in this embodiment. The grouting wrapping tape 15 in this embodiment includes a closed-cell foam board 16, bamboo strips 17, and a rope tensioner 18. The closed-cell foam board 16 is cylindrical, and a first steel wire rope is wound around the outer surface of the closed-cell foam board 16. Several bamboo strips 17 are arranged outside the first steel wire rope, and the several bamboo strips 17 are arranged in a ring. A second steel wire rope is wound around the outer side of the bamboo strips 17. Both the first steel wire rope and the second steel wire rope are tightened by the rope tensioner 18.

[0030] like Figure 6 As shown, this is a schematic diagram of the structure inside the mixing hopper 1 in this embodiment. In this embodiment, the mixing hopper 1 is rotatably connected to a stirring shaft 20 via bearings. Multiple stirring rods 21 are fixedly connected to the surface of the stirring shaft 20 and are located inside the mixing hopper 1. A protective cover plate 23 is provided on the top of the mixing hopper 1 via a hinge. A housing is provided on the mixing hopper 1, and a servo motor 22 is installed inside the housing. The output end of the servo motor 22 is fixedly connected to one end of the stirring shaft 20. When concrete mortar is put into the mixing hopper 1, the output end of the servo motor 22 is controlled to drive the stirring shaft 20 to rotate together. The rotating stirring shaft 20 drives the multiple stirring rods 21 to move together. By using multiple stirring rods 21, the stored concrete mortar can be continuously stirred and mixed, thereby preventing the mortar from solidifying during the static process and avoiding affecting the subsequent grouting operation.

[0031] It is worth noting that, such as Figure 2 As shown, in this embodiment, two casters 19 are installed on the bottom of the mounting base plate 4; multiple fixed support rods 24 are fixed to the bottom of the mixing hopper 1, and the fixed support rods 24 are fixed to the conveying pipe 3 by connecting rods 25. The mixing hopper 1 is supported and fixed by the multiple fixed support rods 24.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A PCCP grouting device, comprising a mixing hopper (1), a grout outlet pipe (2) connected to the bottom of the mixing hopper (1), and a conveying pipe (3) connected to the bottom end of the grout outlet pipe (2), characterized in that: Two symmetrical mounting base plates (4) are provided below the material conveying pipe (3). Two telescopic rods (5) are installed on the top of the mounting base plates (4). A support frame (6) is fixedly connected to the top of the telescopic rods (5). A mounting seat (7) is provided on the top of the support frame (6). A grouting pipe (8) is provided through the mounting seat (7). A grouting hopper (9) is connected to the top of the grouting pipe (8). A rotary motor (11) is installed in the grouting hopper (9) through a support plate (10). The output end of the rotary motor (11) is rotatably connected to a screw conveyor shaft (12) through a bearing. One end of the screw conveyor shaft (12) extends into the grouting pipe (8). A screw blade (13) is provided on the surface of the screw conveyor shaft (12).

2. The PCCP grouting device according to claim 1, characterized in that: A cylindrical grouting band (15) is placed at the bottom of the support frame (6), and the grouting band (15) can fit tightly against the inner side of the matching support frame (6). A grouting port is opened at the top of the grouting band (15), and the bottom end of the grouting pipe (8) can extend into the grouting port.

3. The PCCP grouting device according to claim 2, characterized in that: The grouting wrap (15) includes a closed-cell foam board (16), bamboo strips (17) and a rope tensioner (18). The closed-cell foam board (16) is cylindrical. A first steel wire rope is wrapped around the outer surface of the closed-cell foam board (16). Several bamboo strips (17) are arranged outside the first steel wire rope, and the bamboo strips (17) are arranged in a ring. A second steel wire rope is wrapped around the outer side of the bamboo strips (17). Both the first steel wire rope and the second steel wire rope are tightened by the rope tensioner (18).

4. A PCCP grouting device according to claim 1, characterized in that: The surface of the discharge pipe (2) is equipped with a control valve, and the conveying pipe (3) is inclined; the protective cover (14) is fixed on the support plate (10), and the rotating motor (11) is located inside the protective cover (14).

5. A PCCP grouting device according to claim 1, characterized in that: The mixing hopper (1) is connected to a stirring shaft (20) via a bearing. Multiple stirring rods (21) are fixedly connected to the surface of the stirring shaft (20), and the multiple stirring rods (21) are located inside the mixing hopper (1). A protective cover plate (23) is provided on the top of the mixing hopper (1) via a hinge.

6. A PCCP grouting device according to claim 1, characterized in that: A housing is provided on the mixing hopper (1), and a servo motor (22) is installed inside the housing. The output end of the servo motor (22) is fixedly connected to one end of the stirring shaft (20).

7. A PCCP grouting device according to claim 1, characterized in that: Two casters (19) are installed at the bottom of the mounting base plate (4); multiple fixed support rods (24) are fixed at the bottom of the mixing hopper (1), and the fixed support rods (24) are fixed to the conveying pipe (3) by connecting rods (25).

Images