Large-diameter water supply pipeline steel winding device

Abstract

The utility model discloses a large -diameter water supply pipeline steel bar winding device relates to water supply pipeline repair technical field, including the trolley frame, the upper end of trolley frame is installed two and presents left and right symmetry to set up the side plate, rotatably installed with upper roller, lower roller and middle roller between two side plates, the upper roller is located the just above of lower roller, and the steel bar access channel is formed between the upper roller and lower roller, and the middle roller is located the front of steel bar access channel and keeps synchronous same -direction rotation with lower roller, and the middle roller is along vertical direction and is assembled in the side plate, the upper roller and lower roller synchronous reverse rotation drive steel bar steady progress transmission to the direction of close to the middle roller, simultaneously, the middle roller rises closely the steel bar processed along the vertical direction. Through setting up upper roller, lower roller and middle roller realized the spiral bending operation of steel bar, and the damaged area of large -diameter water supply pipeline is repaired by spiral steel bar instead of stainless steel lining pipe.

Description

Technical Field

[0001] This utility model relates to the field of water supply pipeline repair technology, specifically to a steel bar winding device for large-diameter water supply pipelines. Background Technology

[0002] Currently, the main repair techniques for water supply pipelines are PE pipe insertion lining, composite flexible hose lining, and stainless steel pipe insertion lining. The PE pipe insertion lining and composite flexible hose lining methods are typically suitable for pipe diameters of 1 meter or less. However, the diameter of long-distance water pipelines or main pipelines is usually over 1.8 meters. Repairing such pipelines using stainless steel lining has disadvantages such as diameter reduction, decreased flow capacity, and large excavation area. Based on these issues, we propose a steel reinforcement winding device for large-diameter water supply pipelines. Utility Model Content

[0003] In order to solve the technical problems existing in the prior art, the present invention provides a steel bar winding device for large-diameter water supply pipes.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a rebar winding device for large-diameter water supply pipelines, including a trolley frame. Two side plates are symmetrically arranged on the upper end of the trolley frame. An upper roller, a lower roller, and a middle roller are rotatably mounted between the two side plates. The upper roller is located directly above the lower roller, and a rebar entry channel is formed between the upper and lower rollers. The middle roller is located in front of the rebar entry channel and rotates synchronously and in the same direction as the lower roller. The middle roller is slidably assembled in the side plates in the vertical direction. The upper and lower rollers rotate synchronously in opposite directions, driving the rebar to move steadily forward towards the direction close to the middle roller. At the same time, the middle roller rises vertically and closely adheres to the rebar being processed.

[0005] Preferably, the upper roller is rotatably mounted between two side plates via an upper rotating shaft, and the lower roller is rotatably mounted between two side plates via a lower rotating shaft. First gears, meshing with each other, are fixedly fitted onto the circumferential surfaces of both the upper and lower rotating shafts. One end of the lower rotating shaft is fixedly connected to the motor shaft of a first motor, which is fixedly mounted on the trolley frame. The side plates begin with vertically oriented grooves, within which sliders are slidably mounted. The middle roller is rotatably mounted between two sliders, one end of which is fitted with a third motor. The motor shaft of the third motor is fixedly connected to the axis of the middle roller. The motor shafts of the third motor and the first motor rotate synchronously in opposite directions.

[0006] Preferably, a lead screw is rotatably installed in the groove along the vertical direction. The lead screw and the slider are threadedly connected. A worm gear is fixedly sleeved at the lower end of the lead screw. A worm is meshed with the worm gear. A connecting shaft is installed between the two worms. One of the worms is fixedly connected to the motor shaft of the second motor. The second motor is fixedly installed on the corresponding side plate.

[0007] Preferably, the upper and middle rollers each have an inclined first annular guide groove on their circumferential surfaces, and the lower roller has a vertically arranged second annular guide groove on its circumferential surface.

[0008] Preferably, a steel bar channel is installed at the upper end of the trolley frame. The steel bar channel is composed of a transverse section, a curved section and a longitudinal section spliced ​​together end to end. The transverse section is set parallel to the axis of the water supply pipe, and the longitudinal section is set perpendicular to the axis of the water supply pipe. The longitudinal section is connected to the steel bar entry channel.

[0009] Preferably, several rollers are symmetrically distributed on the front and rear sides of the transverse section. Two symmetrically arranged rollers rotate synchronously in the same direction to drive the reinforcing bar to move towards the direction of the reinforcing bar entering the channel.

[0010] Preferably, the outer circumferential surface of the roller is provided with an annular recess.

[0011] Compared with the prior art, this utility model provides a steel bar winding device for large-diameter water supply pipes, which has the following beneficial effects: (1) In this utility model, the upper and lower rollers, which are symmetrically arranged, rotate relative to each other and drive the steel bars to move steadily forward towards the middle roller. Then, the angle between the lower and middle rollers causes the steel bars to bend and form a spiral structure, which is conducive to subsequent repair work on the damaged area of ​​the large-diameter water supply pipe using the spiral steel bars. Compared with the method of inserting stainless steel inner lining pipes, the repair method using spiral steel bars has the advantages of small diameter reduction, small flow capacity loss, and less excavation.

[0012] (2) By setting the first annular guide groove and the second annular guide groove to guide the steel bars to bend and form a spiral structure, the efficiency of the steel bar spiral is improved.

[0013] (3) By setting up steel channels, the steel bars that are parallel to the water supply pipe axis are turned to the direction perpendicular to the water supply pipe axis, which is conducive to the subsequent thread bending operation of the steel bars.

[0014] (4) The steel bars are steadily conveyed by the relative rotation of the symmetrically arranged rollers, which improves the efficiency of the spiral operation of steel bars.

[0015] (5) By driving the upper and lower rollers to rotate synchronously in opposite directions and the relatively set rollers to rotate relative to each other, the manufacturing cost is saved and the difficulty of subsequent maintenance is reduced. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1This is a schematic diagram of the steel bar winding device for the entire large-diameter water supply pipeline in the embodiment; Figure 2 This is a schematic diagram of the assembly of the upper roller, lower roller, and middle roller in the embodiment; Figure 3 This is a schematic diagram of the assembly of the upper and lower rollers in the embodiment; Figure 4 This is a schematic diagram of the assembly of the roller in the embodiment; Figure 5 This is a schematic diagram of the roller assembly in the embodiment; Figure 6 This is a schematic diagram of the rebar channel in the embodiment.

[0017] In the diagram: 1. Car frame; 2. Support leg; 3. Rebar channel; 31. Transverse section; 32. Bending section; 33. Longitudinal section; 4. Side plate; 41. Slide groove; 5. Upper roller; 51. Upper rotating shaft; 52. First gear; 6. Lower roller; 61. Lower rotating shaft; 62. First motor; 7. Middle roller; 71. Slider; 72. Lead screw; 73. Worm gear; 74. Worm; 75. Connecting shaft; 76. Second motor; 77. Third motor; 8. Roller; 81. Recessed part; 82. Gear set; 83. Second gear; 84. Third gear; 85. Synchronous pulley. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0019] This embodiment proposes a steel reinforcement winding device for large-diameter water supply pipelines, such as... Figures 1 to 6As shown, the device includes a trolley frame 1. Two symmetrically arranged side plates 4 are mounted on the upper end of the trolley frame 1. An upper roller 5, a lower roller 6, and a middle roller 7 are rotatably mounted between the two side plates 4. The upper roller 5 is directly above the lower roller 6, forming a rebar entry channel between them. The middle roller 7 is located in front of the rebar entry channel and rotates synchronously and in the same direction as the lower roller 6. The middle roller 7 is vertically slidably mounted within the side plate 4. The yielding of the rebar mainly relies on the rising of the middle roller 7, which closely adheres to the rebar being processed. The upper roller 5 and lower roller 6 rotate synchronously in opposite directions, driving the rebar to steadily advance towards the middle roller 7. The angle between the middle roller 7 and the lower roller 6 bends the rebar, forming a spiral structure. In this embodiment, support legs 2 are installed on both the front and rear sides of the trolley frame 1. When the trolley frame 1 moves to the target position on the water supply pipe, the support legs 2 extend and contact the pipe wall, ensuring the trolley frame 1 remains stable.

[0020] Based on the above scheme, the upper roller 5 is rotatably mounted between the two side plates 4 via the upper rotating shaft 51, and the lower roller 6 is rotatably mounted between the two side plates 4 via the lower rotating shaft 61. The upper rotating shaft 51 and the lower rotating shaft 61 are both fixedly sleeved with the first gear 52 that meshes with each other. One end of the lower rotating shaft 61 is fixedly connected to the motor shaft of the first motor 62, and the first motor 62 is fixedly mounted on the trolley frame 1. The side plates 4 have a vertically arranged sliding groove 41, and a slider 71 is slidably mounted in the sliding groove 41. The middle roller 7 is rotatably mounted between the two sliders 71. One end of one of the sliders 71 is equipped with a third motor 77, and the motor shaft of the third motor 77 is fixedly connected to the axis of the middle roller 7. The motor shafts of the third motor 77 and the first motor 62 rotate synchronously in opposite directions. The first motor 62 drives the upper roller 5 and the lower roller 6 to rotate synchronously in opposite directions, conveying the steel bar towards the middle roller 7. At the same time, the middle roller 7 and the lower roller 6 rotate synchronously in the same direction and rise vertically, so that the middle roller 7 is in close contact with the steel bar. The angle between the middle roller 7 and the lower roller 6 makes the steel bar form a curved spiral structure.

[0021] To achieve the vertical movement of the middle roller 7, this embodiment employs a lead screw structure. Specifically, a lead screw 72 is rotatably installed vertically within the slide groove 41. The lead screw 72 and the slider 71 are threadedly connected. A worm gear 73 is fixedly sleeved at the lower end of the lead screw 72, and a worm 74 is meshed with the worm gear 73. A connecting shaft 75 is installed between the two worm gears 74. One of the worm gears 74 is fixedly connected to the motor shaft of the second motor 76, which is fixedly mounted on the corresponding side plate 4. When the reinforcing bar passes through the channel, the motor shaft of the second motor 76 drives the two worm gears 74 to rotate synchronously. The worm gear 74 drives the worm gear 73 to rotate, which in turn drives the lead screw 72 to rotate. The lead screw 72 converts its rotational motion into the linear motion of the slider 71 along the slide groove 41, causing the middle roller 7 to rise upwards along the slide groove 41.

[0022] To ensure that the reinforcing bars form a spiral structure after yielding, in this embodiment, the upper roller 5 and the middle roller 7 each have an inclined first annular guide groove on their circumferential surfaces, and the lower roller 6 has a vertically arranged second annular guide groove on its circumferential surface. The reinforcing bars are guided to bend in a spiral shape through the first and second annular guide grooves.

[0023] In addition, due to the long length of the reinforcing bars, in large-diameter water supply pipes, the reinforcing bars are set parallel to the axial direction of the water supply pipe. However, the yielding of the reinforcing bars requires movement in a direction perpendicular to the axial direction of the water supply pipe. Therefore, in this embodiment, a reinforcing bar channel is installed at the upper end of the trolley frame 1. The reinforcing bar channel is composed of a transverse section 31, a curved section 32, and a longitudinal section 33, which are spliced ​​end to end. The transverse section 31 is set parallel to the axial direction of the water supply pipe, and the longitudinal section 33 is set perpendicular to the axial direction of the water supply pipe. The longitudinal section 33 is connected to the reinforcing bar entry channel.

[0024] In order to drive the reinforcing bar to move along the reinforcing bar channel toward the direction of the reinforcing bar entering the channel, in this embodiment, several rollers 8 are symmetrically distributed on the front and rear sides of the transverse section 31. Two symmetrically arranged rollers 8 rotate synchronously in the same direction to drive the reinforcing bar to move toward the direction of the reinforcing bar entering the channel.

[0025] To save manufacturing costs, the rotation of the roller 8 is driven by the first motor 62. Specifically, the upper ends of the two symmetrically arranged rollers 8 are each equipped with a third gear 84 that meshes with each other; the end of the first gear 52 is equipped with a second gear 83, and a gear set 82 is connected between the second gear 83 and one of the rollers 8. The upper end of the other roller 8 is equipped with a synchronous pulley 85, and all the synchronous pulleys 85 are connected by a synchronous belt.

[0026] In order to increase the contact area between the roller 8 and the reinforcing bar, an annular recess 81 is provided on the outer circumferential surface of the roller 8. The recess 81 increases the contact area with the reinforcing bar and improves the efficiency of reinforcing bar conveying.

[0027] In this embodiment, a repair method for large-diameter water supply pipes is also proposed, including the following steps: Step 1, Water Reduction Treatment: Close the upstream and downstream valves of the original water supply pipeline to suspend the operation of the original water supply pipeline, block the upstream and downstream sections of the pipeline to be repaired, and divert and adjust the water in the pipeline to be repaired to reduce the water volume in the pipeline to be repaired. Step Two, Construction: After the first construction and once there is no residual water on the surface of the pipe section, apply primer to the original water supply pipe, ensuring the primer is applied evenly. For the first construction step, fiber cloth is pasted onto the inner surface of the pipe. The fiber cloth can be one of the following: aramid fiber cloth, polyester fiber cloth, polyacrylonitrile fiber cloth, polypropylene fiber cloth, or fiberglass cloth. The fiber cloth is pasted circumferentially along the inner wall of the pipe, resulting in a uniform and smooth surface. The third construction step involves attaching an elastic layer to the fiber cloth. The elastic layer material is ethylene propylene rubber or polyurethane, which is circumferentially bonded to the inner wall of the pipe, with a thickness of 3-6 mm. In the fourth construction phase, the reinforcing bars are wound into a spiral structure using a large-diameter water supply pipe reinforcing bar winding device and tightly attached to the elastic layer. Epoxy resin is then applied to the surface of the reinforcing bars and the gaps between them. The fifth construction phase involved attaching fiber cloth to the surface of the reinforcing bars again. For the sixth application of paint, solvent-free polyurethane resin adhesive can be used. Step 3: After ventilating the water supply pipeline for 3-6 hours, the repair of this section of the pipeline is complete.

[0028] In the description of this utility model, the terms "first," "second," "another," and "yet another" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Furthermore, in the description of this utility model, unless otherwise stated, "multiple" means two or more.

[0030] Although embodiments of the present invention have been shown and described, those skilled in the art will understand 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 claims and their equivalents.

Claims

1. A large-diameter water supply pipe reinforcing device comprising a trolley frame (1), characterized in that: The upper end of the trolley frame (1) is equipped with two side plates (4) arranged symmetrically on the left and right. The upper roller (5), lower roller (6) and middle roller (7) are rotatably installed between the two side plates (4). The upper roller (5) is located directly above the lower roller (6). A steel bar entry channel is formed between the upper roller (5) and the lower roller (6). The middle roller (7) is located in front of the steel bar entry channel and rotates synchronously and in the same direction as the lower roller (6). The middle roller (7) is slidably assembled in the side plate (4) in the vertical direction. The upper roller (5) and the lower roller (6) rotate synchronously in opposite directions to drive the steel bar to move steadily forward towards the middle roller (7). At the same time, the middle roller (7) rises vertically and closely adheres to the steel bar being processed.

2. The large diameter water service pipe winding device according to claim 1, characterized in that: The upper roller (5) is rotatably mounted between the two side plates (4) via the upper rotating shaft (51), and the lower roller (6) is rotatably mounted between the two side plates (4) via the lower rotating shaft (61). The upper rotating shaft (51) and the lower rotating shaft (61) are both fixedly fitted with the first gear (52) meshing with each other. One end of the lower rotating shaft (61) is fixedly connected to the motor shaft of the first motor (62). The first motor (62) is fixedly mounted on the trolley frame (1). The side plate (4) has a vertically arranged groove (41). A slider (71) is slidably mounted in the groove (41). The middle roller (7) is rotatably mounted between the two sliders (71). One end of one of the sliders (71) is equipped with a third motor (77). The motor shaft of the third motor (77) is fixedly connected to the axis of the middle roller (7). The motor shafts of the third motor (77) and the first motor (62) rotate synchronously in opposite directions.

3. The large diameter water service pipe winding device according to claim 2, characterized in that: A lead screw (72) is rotatably installed in the groove (41) along the vertical direction. The lead screw (72) and the slider (71) are threadedly connected. A worm wheel (73) is fixedly sleeved at the lower end of the lead screw (72). A worm (74) is meshed with the worm wheel (73). A connecting shaft (75) is installed between the two worms (74). One of the worms (74) is fixedly connected to the motor shaft of the second motor (76). The second motor (76) is fixedly installed on the corresponding side plate (4).

4. The large diameter water supply pipe winding device according to any one of claims 1 to 3, characterized in that: The upper roller (5) and the middle roller (7) both have a first annular guide groove that is inclined, and the lower roller (6) has a second annular guide groove that is vertically arranged on its circumference.

5. The large diameter water service pipe winding device as claimed in claim 1, wherein: The upper end of the car frame (1) is equipped with a steel bar channel. The steel bar channel is composed of a transverse section (31), a curved section (32) and a longitudinal section (33) spliced ​​together end to end. The transverse section (31) is parallel to the axis of the water supply pipe, and the longitudinal section (33) is perpendicular to the axis of the water supply pipe. The longitudinal section (33) is connected to the steel bar entry channel.

6. A large diameter water service pipe winding device as claimed in claim 5, wherein: Several rollers (8) are symmetrically distributed on the front and rear sides of the transverse section (31). Two symmetrically arranged rollers (8) rotate synchronously in the same direction to drive the steel bars to move towards the direction of the steel bars entering the channel.

7. A large diameter water service pipe winding device as claimed in claim 6, wherein: The outer circumferential surface of the roller (8) is provided with an annular recess (81).

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